diff --git a/adb/Android.mk b/adb/Android.mk
index 1a25106..bc8315e 100644
--- a/adb/Android.mk
+++ b/adb/Android.mk
@@ -33,16 +33,16 @@
 
 ifeq ($(HOST_OS),windows)
   USB_SRCS := usb_windows.c
-  EXTRA_SRCS := get_my_path_windows.c
+  EXTRA_SRCS := get_my_path_windows.c ../libcutils/list.c
   EXTRA_STATIC_LIBS := AdbWinApi
   ifneq ($(strip $(USE_CYGWIN)),)
     # Pure cygwin case
-    LOCAL_LDLIBS += -lpthread
+    LOCAL_LDLIBS += -lpthread -lgdi32
     LOCAL_C_INCLUDES += /usr/include/w32api/ddk
   endif
   ifneq ($(strip $(USE_MINGW)),)
     # MinGW under Linux case
-    LOCAL_LDLIBS += -lws2_32
+    LOCAL_LDLIBS += -lws2_32 -lgdi32
     USE_SYSDEPS_WIN32 := 1
     LOCAL_C_INCLUDES += /usr/i586-mingw32msvc/include/ddk
   endif
@@ -57,6 +57,7 @@
 	transport_usb.c \
 	commandline.c \
 	adb_client.c \
+	adb_auth_host.c \
 	sockets.c \
 	services.c \
 	file_sync_client.c \
@@ -65,6 +66,7 @@
 	utils.c \
 	usb_vendors.c
 
+LOCAL_C_INCLUDES += external/openssl/include
 
 ifneq ($(USE_SYSDEPS_WIN32),)
   LOCAL_SRC_FILES += sysdeps_win32.c
@@ -76,14 +78,14 @@
 LOCAL_CFLAGS += -D_XOPEN_SOURCE -D_GNU_SOURCE
 LOCAL_MODULE := adb
 
-LOCAL_STATIC_LIBRARIES := libzipfile libunz $(EXTRA_STATIC_LIBS)
+LOCAL_STATIC_LIBRARIES := libzipfile libunz libcrypto_static $(EXTRA_STATIC_LIBS)
 ifeq ($(USE_SYSDEPS_WIN32),)
 	LOCAL_STATIC_LIBRARIES += libcutils
 endif
 
 include $(BUILD_HOST_EXECUTABLE)
 
-$(call dist-for-goals,dist_files,$(LOCAL_BUILT_MODULE))
+$(call dist-for-goals,dist_files sdk,$(LOCAL_BUILT_MODULE))
 
 ifeq ($(HOST_OS),windows)
 $(LOCAL_INSTALLED_MODULE): \
@@ -104,6 +106,7 @@
 	transport.c \
 	transport_local.c \
 	transport_usb.c \
+	adb_auth_client.c \
 	sockets.c \
 	services.c \
 	file_sync_service.c \
@@ -127,7 +130,7 @@
 LOCAL_MODULE_PATH := $(TARGET_ROOT_OUT_SBIN)
 LOCAL_UNSTRIPPED_PATH := $(TARGET_ROOT_OUT_SBIN_UNSTRIPPED)
 
-LOCAL_STATIC_LIBRARIES := libcutils libc
+LOCAL_STATIC_LIBRARIES := libcutils libc libmincrypt
 include $(BUILD_EXECUTABLE)
 
 
@@ -146,6 +149,7 @@
 	transport_usb.c \
 	commandline.c \
 	adb_client.c \
+	adb_auth_host.c \
 	sockets.c \
 	services.c \
 	file_sync_client.c \
@@ -165,9 +169,13 @@
 	-D_XOPEN_SOURCE \
 	-D_GNU_SOURCE
 
+LOCAL_C_INCLUDES += external/openssl/include
+
 LOCAL_MODULE := adb
 
 LOCAL_STATIC_LIBRARIES := libzipfile libunz libcutils
 
+LOCAL_SHARED_LIBRARIES := libcrypto
+
 include $(BUILD_EXECUTABLE)
 endif
diff --git a/adb/SERVICES.TXT b/adb/SERVICES.TXT
index be4d50b..d9aa09c 100644
--- a/adb/SERVICES.TXT
+++ b/adb/SERVICES.TXT
@@ -17,8 +17,10 @@
     upgrade.
 
 host:devices
+host:devices-l
     Ask to return the list of available Android devices and their
-    state. After the OKAY, this is followed by a 4-byte hex len,
+    state. devices-l includes the device paths in the state.
+    After the OKAY, this is followed by a 4-byte hex len,
     and a string that will be dumped as-is by the client, then
     the connection is closed
 
@@ -88,6 +90,9 @@
     Returns the serial number of the corresponding device/emulator.
     Note that emulator serial numbers are of the form "emulator-5554"
 
+<host-prefix>:get-devpath
+    Returns the device path of the corresponding device/emulator.
+
 <host-prefix>:get-state
     Returns the state of a given device as a string.
 
diff --git a/adb/adb.c b/adb/adb.c
index 229f3ef..07bfbe5 100644
--- a/adb/adb.c
+++ b/adb/adb.c
@@ -21,17 +21,22 @@
 #include <ctype.h>
 #include <stdarg.h>
 #include <errno.h>
+#include <stddef.h>
 #include <string.h>
 #include <time.h>
 #include <sys/time.h>
 
 #include "sysdeps.h"
 #include "adb.h"
+#include "adb_auth.h"
+
+#define ARRAY_SIZE(a) (sizeof(a) / sizeof((a)[0]))
 
 #if !ADB_HOST
 #include <private/android_filesystem_config.h>
 #include <linux/capability.h>
 #include <linux/prctl.h>
+#include <sys/mount.h>
 #else
 #include "usb_vendors.h"
 #endif
@@ -42,7 +47,11 @@
 
 int HOST = 0;
 
+static int auth_enabled = 0;
+
+#if !ADB_HOST
 static const char *adb_device_banner = "device";
+#endif
 
 void fatal(const char *fmt, ...)
 {
@@ -94,6 +103,7 @@
         { "transport", TRACE_TRANSPORT },
         { "jdwp", TRACE_JDWP },
         { "services", TRACE_SERVICES },
+        { "auth", TRACE_AUTH },
         { NULL, 0 }
     };
 
@@ -197,19 +207,21 @@
     free(p);
 }
 
-void handle_online(void)
+void handle_online(atransport *t)
 {
     D("adb: online\n");
+    t->online = 1;
 }
 
 void handle_offline(atransport *t)
 {
     D("adb: offline\n");
     //Close the associated usb
+    t->online = 0;
     run_transport_disconnects(t);
 }
 
-#if TRACE_PACKETS
+#if DEBUG_PACKETS
 #define DUMPMAX 32
 void print_packet(const char *label, apacket *p)
 {
@@ -224,6 +236,7 @@
     case A_OKAY: tag = "OKAY"; break;
     case A_CLSE: tag = "CLSE"; break;
     case A_WRTE: tag = "WRTE"; break;
+    case A_AUTH: tag = "AUTH"; break;
     default: tag = "????"; break;
     }
 
@@ -245,7 +258,7 @@
         }
         x++;
     }
-    fprintf(stderr, tag);
+    fputs(tag, stderr);
 }
 #endif
 
@@ -269,6 +282,36 @@
     send_packet(p, t);
 }
 
+static size_t fill_connect_data(char *buf, size_t bufsize)
+{
+#if ADB_HOST
+    return snprintf(buf, bufsize, "host::") + 1;
+#else
+    static const char *cnxn_props[] = {
+        "ro.product.name",
+        "ro.product.model",
+        "ro.product.device",
+    };
+    static const int num_cnxn_props = ARRAY_SIZE(cnxn_props);
+    int i;
+    size_t remaining = bufsize;
+    size_t len;
+
+    len = snprintf(buf, remaining, "%s::", adb_device_banner);
+    remaining -= len;
+    buf += len;
+    for (i = 0; i < num_cnxn_props; i++) {
+        char value[PROPERTY_VALUE_MAX];
+        property_get(cnxn_props[i], value, "");
+        len = snprintf(buf, remaining, "%s=%s;", cnxn_props[i], value);
+        remaining -= len;
+        buf += len;
+    }
+
+    return bufsize - remaining + 1;
+#endif
+}
+
 static void send_connect(atransport *t)
 {
     D("Calling send_connect \n");
@@ -276,15 +319,73 @@
     cp->msg.command = A_CNXN;
     cp->msg.arg0 = A_VERSION;
     cp->msg.arg1 = MAX_PAYLOAD;
-    snprintf((char*) cp->data, sizeof cp->data, "%s::",
-            HOST ? "host" : adb_device_banner);
-    cp->msg.data_length = strlen((char*) cp->data) + 1;
+    cp->msg.data_length = fill_connect_data((char *)cp->data,
+                                            sizeof(cp->data));
     send_packet(cp, t);
-#if ADB_HOST
-        /* XXX why sleep here? */
-    // allow the device some time to respond to the connect message
-    adb_sleep_ms(1000);
-#endif
+}
+
+static void send_auth_request(atransport *t)
+{
+    D("Calling send_auth_request\n");
+    apacket *p;
+    int ret;
+
+    ret = adb_auth_generate_token(t->token, sizeof(t->token));
+    if (ret != sizeof(t->token)) {
+        D("Error generating token ret=%d\n", ret);
+        return;
+    }
+
+    p = get_apacket();
+    memcpy(p->data, t->token, ret);
+    p->msg.command = A_AUTH;
+    p->msg.arg0 = ADB_AUTH_TOKEN;
+    p->msg.data_length = ret;
+    send_packet(p, t);
+}
+
+static void send_auth_response(uint8_t *token, size_t token_size, atransport *t)
+{
+    D("Calling send_auth_response\n");
+    apacket *p = get_apacket();
+    int ret;
+
+    ret = adb_auth_sign(t->key, token, token_size, p->data);
+    if (!ret) {
+        D("Error signing the token\n");
+        put_apacket(p);
+        return;
+    }
+
+    p->msg.command = A_AUTH;
+    p->msg.arg0 = ADB_AUTH_SIGNATURE;
+    p->msg.data_length = ret;
+    send_packet(p, t);
+}
+
+static void send_auth_publickey(atransport *t)
+{
+    D("Calling send_auth_publickey\n");
+    apacket *p = get_apacket();
+    int ret;
+
+    ret = adb_auth_get_userkey(p->data, sizeof(p->data));
+    if (!ret) {
+        D("Failed to get user public key\n");
+        put_apacket(p);
+        return;
+    }
+
+    p->msg.command = A_AUTH;
+    p->msg.arg0 = ADB_AUTH_RSAPUBLICKEY;
+    p->msg.data_length = ret;
+    send_packet(p, t);
+}
+
+void adb_auth_verified(atransport *t)
+{
+    handle_online(t);
+    send_connect(t);
 }
 
 static char *connection_state_name(atransport *t)
@@ -305,29 +406,56 @@
     }
 }
 
+/* qual_overwrite is used to overwrite a qualifier string.  dst is a
+ * pointer to a char pointer.  It is assumed that if *dst is non-NULL, it
+ * was malloc'ed and needs to freed.  *dst will be set to a dup of src.
+ */
+static void qual_overwrite(char **dst, const char *src)
+{
+    if (!dst)
+        return;
+
+    free(*dst);
+    *dst = NULL;
+
+    if (!src || !*src)
+        return;
+
+    *dst = strdup(src);
+}
+
 void parse_banner(char *banner, atransport *t)
 {
-    char *type, *product, *end;
+    static const char *prop_seps = ";";
+    static const char key_val_sep = '=';
+    char *cp;
+    char *type;
 
     D("parse_banner: %s\n", banner);
     type = banner;
-    product = strchr(type, ':');
-    if(product) {
-        *product++ = 0;
-    } else {
-        product = "";
-    }
-
-        /* remove trailing ':' */
-    end = strchr(product, ':');
-    if(end) *end = 0;
-
-        /* save product name in device structure */
-    if (t->product == NULL) {
-        t->product = strdup(product);
-    } else if (strcmp(product, t->product) != 0) {
-        free(t->product);
-        t->product = strdup(product);
+    cp = strchr(type, ':');
+    if (cp) {
+        *cp++ = 0;
+        /* Nothing is done with second field. */
+        cp = strchr(cp, ':');
+        if (cp) {
+            char *save;
+            char *key;
+            key = adb_strtok_r(cp + 1, prop_seps, &save);
+            while (key) {
+                cp = strchr(key, key_val_sep);
+                if (cp) {
+                    *cp++ = '\0';
+                    if (!strcmp(key, "ro.product.name"))
+                        qual_overwrite(&t->product, cp);
+                    else if (!strcmp(key, "ro.product.model"))
+                        qual_overwrite(&t->model, cp);
+                    else if (!strcmp(key, "ro.product.device"))
+                        qual_overwrite(&t->device, cp);
+                }
+                key = adb_strtok_r(NULL, prop_seps, &save);
+            }
+        }
     }
 
     if(!strcmp(type, "bootloader")){
@@ -389,13 +517,42 @@
             t->connection_state = CS_OFFLINE;
             handle_offline(t);
         }
+
         parse_banner((char*) p->data, t);
-        handle_online();
-        if(!HOST) send_connect(t);
+
+        if (HOST || !auth_enabled) {
+            handle_online(t);
+            if(!HOST) send_connect(t);
+        } else {
+            send_auth_request(t);
+        }
+        break;
+
+    case A_AUTH:
+        if (p->msg.arg0 == ADB_AUTH_TOKEN) {
+            t->key = adb_auth_nextkey(t->key);
+            if (t->key) {
+                send_auth_response(p->data, p->msg.data_length, t);
+            } else {
+                /* No more private keys to try, send the public key */
+                send_auth_publickey(t);
+            }
+        } else if (p->msg.arg0 == ADB_AUTH_SIGNATURE) {
+            if (adb_auth_verify(t->token, p->data, p->msg.data_length)) {
+                adb_auth_verified(t);
+                t->failed_auth_attempts = 0;
+            } else {
+                if (t->failed_auth_attempts++ > 10)
+                    adb_sleep_ms(1000);
+                send_auth_request(t);
+            }
+        } else if (p->msg.arg0 == ADB_AUTH_RSAPUBLICKEY) {
+            adb_auth_confirm_key(p->data, p->msg.data_length, t);
+        }
         break;
 
     case A_OPEN: /* OPEN(local-id, 0, "destination") */
-        if(t->connection_state != CS_OFFLINE) {
+        if (t->online) {
             char *name = (char*) p->data;
             name[p->msg.data_length > 0 ? p->msg.data_length - 1 : 0] = 0;
             s = create_local_service_socket(name);
@@ -411,7 +568,7 @@
         break;
 
     case A_OKAY: /* READY(local-id, remote-id, "") */
-        if(t->connection_state != CS_OFFLINE) {
+        if (t->online) {
             if((s = find_local_socket(p->msg.arg1))) {
                 if(s->peer == 0) {
                     s->peer = create_remote_socket(p->msg.arg0, t);
@@ -423,7 +580,7 @@
         break;
 
     case A_CLSE: /* CLOSE(local-id, remote-id, "") */
-        if(t->connection_state != CS_OFFLINE) {
+        if (t->online) {
             if((s = find_local_socket(p->msg.arg1))) {
                 s->close(s);
             }
@@ -431,7 +588,7 @@
         break;
 
     case A_WRTE:
-        if(t->connection_state != CS_OFFLINE) {
+        if (t->online) {
             if((s = find_local_socket(p->msg.arg1))) {
                 unsigned rid = p->msg.arg0;
                 p->len = p->msg.data_length;
@@ -947,12 +1104,12 @@
 
     init_transport_registration();
 
-
 #if ADB_HOST
     HOST = 1;
     usb_vendors_init();
     usb_init();
     local_init(DEFAULT_ADB_LOCAL_TRANSPORT_PORT);
+    adb_auth_init();
 
     char local_name[30];
     build_local_name(local_name, sizeof(local_name), server_port);
@@ -960,6 +1117,20 @@
         exit(1);
     }
 #else
+    property_get("ro.adb.secure", value, "0");
+    auth_enabled = !strcmp(value, "1");
+    if (auth_enabled)
+        adb_auth_init();
+
+    // Our external storage path may be different than apps, since
+    // we aren't able to bind mount after dropping root.
+    const char* adb_external_storage = getenv("ADB_EXTERNAL_STORAGE");
+    if (NULL != adb_external_storage) {
+        setenv("EXTERNAL_STORAGE", adb_external_storage, 1);
+    } else {
+        D("Warning: ADB_EXTERNAL_STORAGE is not set.  Leaving EXTERNAL_STORAGE"
+          " unchanged.\n");
+    }
 
     /* don't listen on a port (default 5037) if running in secure mode */
     /* don't run as root if we are running in secure mode */
@@ -1014,24 +1185,29 @@
         }
     }
 
-        /* for the device, start the usb transport if the
-        ** android usb device exists and the "service.adb.tcp.port" and
-        ** "persist.adb.tcp.port" properties are not set.
-        ** Otherwise start the network transport.
-        */
-    property_get("service.adb.tcp.port", value, "");
-    if (!value[0])
-        property_get("persist.adb.tcp.port", value, "");
-    if (sscanf(value, "%d", &port) == 1 && port > 0) {
-        // listen on TCP port specified by service.adb.tcp.port property
-        local_init(port);
-    } else if (access("/dev/android_adb", F_OK) == 0) {
+    int usb = 0;
+    if (access(USB_ADB_PATH, F_OK) == 0 || access(USB_FFS_ADB_EP0, F_OK) == 0) {
         // listen on USB
         usb_init();
-    } else {
+        usb = 1;
+    }
+
+    // If one of these properties is set, also listen on that port
+    // If one of the properties isn't set and we couldn't listen on usb,
+    // listen on the default port.
+    property_get("service.adb.tcp.port", value, "");
+    if (!value[0]) {
+        property_get("persist.adb.tcp.port", value, "");
+    }
+    if (sscanf(value, "%d", &port) == 1 && port > 0) {
+        printf("using port=%d\n", port);
+        // listen on TCP port specified by service.adb.tcp.port property
+        local_init(port);
+    } else if (!usb) {
         // listen on default port
         local_init(DEFAULT_ADB_LOCAL_TRANSPORT_PORT);
     }
+
     D("adb_main(): pre init_jdwp()\n");
     init_jdwp();
     D("adb_main(): post init_jdwp()\n");
@@ -1067,7 +1243,7 @@
 
     strncpy(hostbuf, host, sizeof(hostbuf) - 1);
     if (portstr) {
-        if ((unsigned int)(portstr - host) >= sizeof(hostbuf)) {
+        if (portstr - host >= (ptrdiff_t)sizeof(hostbuf)) {
             snprintf(buffer, buffer_size, "bad host name %s", host);
             return;
         }
@@ -1201,16 +1377,19 @@
     }
 
     // return a list of all connected devices
-    if (!strcmp(service, "devices")) {
+    if (!strncmp(service, "devices", 7)) {
         char buffer[4096];
-        memset(buf, 0, sizeof(buf));
-        memset(buffer, 0, sizeof(buffer));
-        D("Getting device list \n");
-        list_transports(buffer, sizeof(buffer));
-        snprintf(buf, sizeof(buf), "OKAY%04x%s",(unsigned)strlen(buffer),buffer);
-        D("Wrote device list \n");
-        writex(reply_fd, buf, strlen(buf));
-        return 0;
+        int use_long = !strcmp(service+7, "-l");
+        if (use_long || service[7] == 0) {
+            memset(buf, 0, sizeof(buf));
+            memset(buffer, 0, sizeof(buffer));
+            D("Getting device list \n");
+            list_transports(buffer, sizeof(buffer), use_long);
+            snprintf(buf, sizeof(buf), "OKAY%04x%s",(unsigned)strlen(buffer),buffer);
+            D("Wrote device list \n");
+            writex(reply_fd, buf, strlen(buf));
+            return 0;
+        }
     }
 
     // add a new TCP transport, device or emulator
@@ -1276,6 +1455,16 @@
         writex(reply_fd, buf, strlen(buf));
         return 0;
     }
+    if(!strncmp(service,"get-devpath",strlen("get-devpath"))) {
+        char *out = "unknown";
+         transport = acquire_one_transport(CS_ANY, ttype, serial, NULL);
+       if (transport && transport->devpath) {
+            out = transport->devpath;
+        }
+        snprintf(buf, sizeof buf, "OKAY%04x%s",(unsigned)strlen(out),out);
+        writex(reply_fd, buf, strlen(buf));
+        return 0;
+    }
     // indicates a new emulator instance has started
     if (!strncmp(service,"emulator:",9)) {
         int  port = atoi(service+9);
diff --git a/adb/adb.h b/adb/adb.h
index 03a7393..9da8af8 100644
--- a/adb/adb.h
+++ b/adb/adb.h
@@ -29,13 +29,14 @@
 #define A_OKAY 0x59414b4f
 #define A_CLSE 0x45534c43
 #define A_WRTE 0x45545257
+#define A_AUTH 0x48545541
 
 #define A_VERSION 0x01000000        // ADB protocol version
 
 #define ADB_VERSION_MAJOR 1         // Used for help/version information
 #define ADB_VERSION_MINOR 0         // Used for help/version information
 
-#define ADB_SERVER_VERSION    29    // Increment this when we want to force users to start a new adb server
+#define ADB_SERVER_VERSION    31    // Increment this when we want to force users to start a new adb server
 
 typedef struct amessage amessage;
 typedef struct apacket apacket;
@@ -165,6 +166,8 @@
         kTransportHost,
 } transport_type;
 
+#define TOKEN_SIZE 20
+
 struct atransport
 {
     atransport *next;
@@ -181,6 +184,7 @@
     int ref_count;
     unsigned sync_token;
     int connection_state;
+    int online;
     transport_type type;
 
         /* usb handle or socket fd as needed */
@@ -190,11 +194,19 @@
         /* used to identify transports for clients */
     char *serial;
     char *product;
+    char *model;
+    char *device;
+    char *devpath;
     int adb_port; // Use for emulators (local transport)
 
         /* a list of adisconnect callbacks called when the transport is kicked */
     int          kicked;
     adisconnect  disconnects;
+
+    void *key;
+    unsigned char token[TOKEN_SIZE];
+    fdevent auth_fde;
+    unsigned failed_auth_attempts;
 };
 
 
@@ -253,7 +265,7 @@
 ** get_device_transport does an acquire on your behalf before returning
 */
 void init_transport_registration(void);
-int  list_transports(char *buf, size_t  bufsize);
+int  list_transports(char *buf, size_t  bufsize, int long_listing);
 void update_transports(void);
 
 asocket*  create_device_tracker(void);
@@ -286,7 +298,7 @@
 void unregister_transport(atransport *t);
 void unregister_all_tcp_transports();
 
-void register_usb_transport(usb_handle *h, const char *serial, unsigned writeable);
+void register_usb_transport(usb_handle *h, const char *serial, const char *devpath, unsigned writeable);
 
 /* this should only be used for transports with connection_state == CS_NOPERM */
 void unregister_usb_transport(usb_handle *usb);
@@ -346,6 +358,7 @@
     TRACE_SYSDEPS,
     TRACE_JDWP,      /* 0x100 */
     TRACE_SERVICES,
+    TRACE_AUTH,
 } AdbTrace;
 
 #if ADB_TRACE
@@ -405,7 +418,7 @@
 #endif
 
 
-#if !TRACE_PACKETS
+#if !DEBUG_PACKETS
 #define print_packet(tag,p) do {} while (0)
 #endif
 
@@ -461,6 +474,17 @@
 
 #define CHUNK_SIZE (64*1024)
 
+#if !ADB_HOST
+#define USB_ADB_PATH     "/dev/android_adb"
+
+#define USB_FFS_ADB_PATH  "/dev/usb-ffs/adb/"
+#define USB_FFS_ADB_EP(x) USB_FFS_ADB_PATH#x
+
+#define USB_FFS_ADB_EP0   USB_FFS_ADB_EP(ep0)
+#define USB_FFS_ADB_OUT   USB_FFS_ADB_EP(ep1)
+#define USB_FFS_ADB_IN    USB_FFS_ADB_EP(ep2)
+#endif
+
 int sendfailmsg(int fd, const char *reason);
 int handle_host_request(char *service, transport_type ttype, char* serial, int reply_fd, asocket *s);
 
diff --git a/adb/adb_auth.h b/adb/adb_auth.h
new file mode 100644
index 0000000..1fffa49
--- /dev/null
+++ b/adb/adb_auth.h
@@ -0,0 +1,54 @@
+/*
+ * Copyright (C) 2012 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef __ADB_AUTH_H
+#define __ADB_AUTH_H
+
+void adb_auth_init(void);
+void adb_auth_verified(atransport *t);
+
+/* AUTH packets first argument */
+/* Request */
+#define ADB_AUTH_TOKEN         1
+/* Response */
+#define ADB_AUTH_SIGNATURE     2
+#define ADB_AUTH_RSAPUBLICKEY  3
+
+#if ADB_HOST
+
+int adb_auth_sign(void *key, void *token, size_t token_size, void *sig);
+void *adb_auth_nextkey(void *current);
+int adb_auth_get_userkey(unsigned char *data, size_t len);
+
+static inline int adb_auth_generate_token(void *token, size_t token_size) { return 0; }
+static inline int adb_auth_verify(void *token, void *sig, int siglen) { return 0; }
+static inline void adb_auth_confirm_key(unsigned char *data, size_t len, atransport *t) { }
+static inline void adb_auth_reload_keys(void) { }
+
+#else // !ADB_HOST
+
+static inline int adb_auth_sign(void* key, void *token, size_t token_size, void *sig) { return 0; }
+static inline void *adb_auth_nextkey(void *current) { return NULL; }
+static inline int adb_auth_get_userkey(unsigned char *data, size_t len) { return 0; }
+
+int adb_auth_generate_token(void *token, size_t token_size);
+int adb_auth_verify(void *token, void *sig, int siglen);
+void adb_auth_confirm_key(unsigned char *data, size_t len, atransport *t);
+void adb_auth_reload_keys(void);
+
+#endif // ADB_HOST
+
+#endif // __ADB_AUTH_H
diff --git a/adb/adb_auth_client.c b/adb/adb_auth_client.c
new file mode 100644
index 0000000..0b4913e
--- /dev/null
+++ b/adb/adb_auth_client.c
@@ -0,0 +1,245 @@
+/*
+ * Copyright (C) 2012 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <stdio.h>
+#include <string.h>
+#include <resolv.h>
+#include <cutils/list.h>
+#include <cutils/sockets.h>
+
+#include "sysdeps.h"
+#include "adb.h"
+#include "adb_auth.h"
+#include "fdevent.h"
+#include "mincrypt/rsa.h"
+
+#define TRACE_TAG TRACE_AUTH
+
+
+struct adb_public_key {
+    struct listnode node;
+    RSAPublicKey key;
+};
+
+static struct listnode key_list;
+
+static char *key_paths[] = {
+    "/adb_keys",
+    "/data/misc/adb/adb_keys",
+    NULL
+};
+
+static fdevent listener_fde;
+static int framework_fd = -1;
+
+
+static void read_keys(const char *file, struct listnode *list)
+{
+    struct adb_public_key *key;
+    FILE *f;
+    char buf[MAX_PAYLOAD];
+    char *sep;
+    int ret;
+
+    f = fopen(file, "r");
+    if (!f) {
+        D("Can't open '%s'\n", file);
+        return;
+    }
+
+    while (fgets(buf, sizeof(buf), f)) {
+        /* Allocate 4 extra bytes to decode the base64 data in-place */
+        key = calloc(1, sizeof(*key) + 4);
+        if (!key) {
+            D("Can't malloc key\n");
+            break;
+        }
+
+        sep = strpbrk(buf, " \t");
+        if (sep)
+            *sep = '\0';
+
+        ret = __b64_pton(buf, (u_char *)&key->key, sizeof(key->key) + 4);
+        if (ret != sizeof(key->key)) {
+            D("%s: Invalid base64 data ret=%d\n", file, ret);
+            free(key);
+            continue;
+        }
+
+        if (key->key.len != RSANUMWORDS) {
+            D("%s: Invalid key len %d\n", file, key->key.len);
+            free(key);
+            continue;
+        }
+
+        list_add_tail(list, &key->node);
+    }
+
+    fclose(f);
+}
+
+static void free_keys(struct listnode *list)
+{
+    struct listnode *item;
+
+    while (!list_empty(list)) {
+        item = list_head(list);
+        list_remove(item);
+        free(node_to_item(item, struct adb_public_key, node));
+    }
+}
+
+void adb_auth_reload_keys(void)
+{
+    char *path;
+    char **paths = key_paths;
+    struct stat buf;
+
+    free_keys(&key_list);
+
+    while ((path = *paths++)) {
+        if (!stat(path, &buf)) {
+            D("Loading keys from '%s'\n", path);
+            read_keys(path, &key_list);
+        }
+    }
+}
+
+int adb_auth_generate_token(void *token, size_t token_size)
+{
+    FILE *f;
+    int ret;
+
+    f = fopen("/dev/urandom", "r");
+    if (!f)
+        return 0;
+
+    ret = fread(token, token_size, 1, f);
+
+    fclose(f);
+    return ret * token_size;
+}
+
+int adb_auth_verify(void *token, void *sig, int siglen)
+{
+    struct listnode *item;
+    struct adb_public_key *key;
+    int ret;
+
+    if (siglen != RSANUMBYTES)
+        return 0;
+
+    list_for_each(item, &key_list) {
+        key = node_to_item(item, struct adb_public_key, node);
+        ret = RSA_verify(&key->key, sig, siglen, token);
+        if (ret)
+            return 1;
+    }
+
+    return 0;
+}
+
+static void adb_auth_event(int fd, unsigned events, void *data)
+{
+    atransport *t = data;
+    char response[2];
+    int ret;
+
+    if (events & FDE_READ) {
+        ret = unix_read(fd, response, sizeof(response));
+        if (ret < 0) {
+            D("Disconnect");
+            fdevent_remove(&t->auth_fde);
+            framework_fd = -1;
+        }
+        else if (ret == 2 && response[0] == 'O' && response[1] == 'K') {
+            adb_auth_reload_keys();
+            adb_auth_verified(t);
+        }
+    }
+}
+
+void adb_auth_confirm_key(unsigned char *key, size_t len, atransport *t)
+{
+    char msg[MAX_PAYLOAD];
+    int ret;
+
+    if (framework_fd < 0) {
+        D("Client not connected\n");
+        return;
+    }
+
+    if (key[len - 1] != '\0') {
+        D("Key must be a null-terminated string\n");
+        return;
+    }
+
+    ret = snprintf(msg, sizeof(msg), "PK%s", key);
+    if (ret >= (signed)sizeof(msg)) {
+        D("Key too long. ret=%d", ret);
+        return;
+    }
+    D("Sending '%s'\n", msg);
+
+    ret = unix_write(framework_fd, msg, ret);
+    if (ret < 0) {
+        D("Failed to write PK, errno=%d\n", errno);
+        return;
+    }
+
+    fdevent_install(&t->auth_fde, framework_fd, adb_auth_event, t);
+    fdevent_add(&t->auth_fde, FDE_READ);
+}
+
+static void adb_auth_listener(int fd, unsigned events, void *data)
+{
+    struct sockaddr addr;
+    socklen_t alen;
+    int s;
+
+    alen = sizeof(addr);
+
+    s = adb_socket_accept(fd, &addr, &alen);
+    if (s < 0) {
+        D("Failed to accept: errno=%d\n", errno);
+        return;
+    }
+
+    framework_fd = s;
+}
+
+void adb_auth_init(void)
+{
+    int fd, ret;
+
+    list_init(&key_list);
+    adb_auth_reload_keys();
+
+    fd = android_get_control_socket("adbd");
+    if (fd < 0) {
+        D("Failed to get adbd socket\n");
+        return;
+    }
+
+    ret = listen(fd, 4);
+    if (ret < 0) {
+        D("Failed to listen on '%d'\n", fd);
+        return;
+    }
+
+    fdevent_install(&listener_fde, fd, adb_auth_listener, NULL);
+    fdevent_add(&listener_fde, FDE_READ);
+}
diff --git a/adb/adb_auth_host.c b/adb/adb_auth_host.c
new file mode 100644
index 0000000..9039d42
--- /dev/null
+++ b/adb/adb_auth_host.c
@@ -0,0 +1,426 @@
+/*
+ * Copyright (C) 2012 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <stdio.h>
+
+#ifdef _WIN32
+#  define WIN32_LEAN_AND_MEAN
+#  include "windows.h"
+#  include "shlobj.h"
+#else
+#  include <sys/types.h>
+#  include <sys/stat.h>
+#  include <unistd.h>
+#endif
+#include <string.h>
+
+#include "sysdeps.h"
+#include "adb.h"
+#include "adb_auth.h"
+
+/* HACK: we need the RSAPublicKey struct
+ * but RSA_verify conflits with openssl */
+#define RSA_verify RSA_verify_mincrypt
+#include "mincrypt/rsa.h"
+#undef RSA_verify
+
+#include <cutils/list.h>
+
+#include <openssl/evp.h>
+#include <openssl/objects.h>
+#include <openssl/pem.h>
+#include <openssl/rsa.h>
+#include <openssl/sha.h>
+
+#define TRACE_TAG TRACE_AUTH
+
+#define ANDROID_PATH   ".android"
+#define ADB_KEY_FILE   "adbkey"
+
+
+struct adb_private_key {
+    struct listnode node;
+    RSA *rsa;
+};
+
+static struct listnode key_list;
+
+
+/* Convert OpenSSL RSA private key to android pre-computed RSAPublicKey format */
+static int RSA_to_RSAPublicKey(RSA *rsa, RSAPublicKey *pkey)
+{
+    int ret = 1;
+    unsigned int i;
+
+    BN_CTX* ctx = BN_CTX_new();
+    BIGNUM* r32 = BN_new();
+    BIGNUM* rr = BN_new();
+    BIGNUM* r = BN_new();
+    BIGNUM* rem = BN_new();
+    BIGNUM* n = BN_new();
+    BIGNUM* n0inv = BN_new();
+
+    if (RSA_size(rsa) != RSANUMBYTES) {
+        ret = 0;
+        goto out;
+    }
+
+    BN_set_bit(r32, 32);
+    BN_copy(n, rsa->n);
+    BN_set_bit(r, RSANUMWORDS * 32);
+    BN_mod_sqr(rr, r, n, ctx);
+    BN_div(NULL, rem, n, r32, ctx);
+    BN_mod_inverse(n0inv, rem, r32, ctx);
+
+    pkey->len = RSANUMWORDS;
+    pkey->n0inv = 0 - BN_get_word(n0inv);
+    for (i = 0; i < RSANUMWORDS; i++) {
+        BN_div(rr, rem, rr, r32, ctx);
+        pkey->rr[i] = BN_get_word(rem);
+        BN_div(n, rem, n, r32, ctx);
+        pkey->n[i] = BN_get_word(rem);
+    }
+    pkey->exponent = BN_get_word(rsa->e);
+
+out:
+    BN_free(n0inv);
+    BN_free(n);
+    BN_free(rem);
+    BN_free(r);
+    BN_free(rr);
+    BN_free(r32);
+    BN_CTX_free(ctx);
+
+    return ret;
+}
+
+static void get_user_info(char *buf, size_t len)
+{
+    char hostname[1024], username[1024];
+    int ret;
+
+#ifndef _WIN32
+    ret = gethostname(hostname, sizeof(hostname));
+    if (ret < 0)
+#endif
+        strcpy(hostname, "unknown");
+
+#if !defined _WIN32 && !defined ADB_HOST_ON_TARGET
+    ret = getlogin_r(username, sizeof(username));
+    if (ret < 0)
+#endif
+        strcpy(username, "unknown");
+
+    ret = snprintf(buf, len, " %s@%s", username, hostname);
+    if (ret >= (signed)len)
+        buf[len - 1] = '\0';
+}
+
+static int write_public_keyfile(RSA *private_key, const char *private_key_path)
+{
+    RSAPublicKey pkey;
+    BIO *bio, *b64, *bfile;
+    char path[PATH_MAX], info[MAX_PAYLOAD];
+    int ret;
+
+    ret = snprintf(path, sizeof(path), "%s.pub", private_key_path);
+    if (ret >= (signed)sizeof(path))
+        return 0;
+
+    ret = RSA_to_RSAPublicKey(private_key, &pkey);
+    if (!ret) {
+        D("Failed to convert to publickey\n");
+        return 0;
+    }
+
+    bfile = BIO_new_file(path, "w");
+    if (!bfile) {
+        D("Failed to open '%s'\n", path);
+        return 0;
+    }
+
+    D("Writing public key to '%s'\n", path);
+
+    b64 = BIO_new(BIO_f_base64());
+    BIO_set_flags(b64, BIO_FLAGS_BASE64_NO_NL);
+
+    bio = BIO_push(b64, bfile);
+    BIO_write(bio, &pkey, sizeof(pkey));
+    BIO_flush(bio);
+    BIO_pop(b64);
+    BIO_free(b64);
+
+    get_user_info(info, sizeof(info));
+    BIO_write(bfile, info, strlen(info));
+    BIO_flush(bfile);
+    BIO_free_all(bfile);
+
+    return 1;
+}
+
+static int generate_key(const char *file)
+{
+    EVP_PKEY* pkey = EVP_PKEY_new();
+    BIGNUM* exponent = BN_new();
+    RSA* rsa = RSA_new();
+    mode_t old_mask;
+    FILE *f = NULL;
+    int ret = 0;
+
+    D("generate_key '%s'\n", file);
+
+    if (!pkey || !exponent || !rsa) {
+        D("Failed to allocate key\n");
+        goto out;
+    }
+
+    BN_set_word(exponent, RSA_F4);
+    RSA_generate_key_ex(rsa, 2048, exponent, NULL);
+    EVP_PKEY_set1_RSA(pkey, rsa);
+
+    old_mask = umask(077);
+
+    f = fopen(file, "w");
+    if (!f) {
+        D("Failed to open '%s'\n", file);
+        umask(old_mask);
+        goto out;
+    }
+
+    umask(old_mask);
+
+    if (!PEM_write_PrivateKey(f, pkey, NULL, NULL, 0, NULL, NULL)) {
+        D("Failed to write key\n");
+        goto out;
+    }
+
+    if (!write_public_keyfile(rsa, file)) {
+        D("Failed to write public key\n");
+        goto out;
+    }
+
+    ret = 1;
+
+out:
+    if (f)
+        fclose(f);
+    EVP_PKEY_free(pkey);
+    RSA_free(rsa);
+    BN_free(exponent);
+    return ret;
+}
+
+static int read_key(const char *file, struct listnode *list)
+{
+    struct adb_private_key *key;
+    FILE *f;
+
+    D("read_key '%s'\n", file);
+
+    f = fopen(file, "r");
+    if (!f) {
+        D("Failed to open '%s'\n", file);
+        return 0;
+    }
+
+    key = malloc(sizeof(*key));
+    if (!key) {
+        D("Failed to alloc key\n");
+        fclose(f);
+        return 0;
+    }
+    key->rsa = RSA_new();
+
+    if (!PEM_read_RSAPrivateKey(f, &key->rsa, NULL, NULL)) {
+        D("Failed to read key\n");
+        fclose(f);
+        RSA_free(key->rsa);
+        free(key);
+        return 0;
+    }
+
+    fclose(f);
+    list_add_tail(list, &key->node);
+    return 1;
+}
+
+static int get_user_keyfilepath(char *filename, size_t len)
+{
+    const char *format, *home;
+    char android_dir[PATH_MAX];
+    struct stat buf;
+#ifdef _WIN32
+    char path[PATH_MAX];
+    home = getenv("ANDROID_SDK_HOME");
+    if (!home) {
+        SHGetFolderPath(NULL, CSIDL_PROFILE, NULL, 0, path);
+        home = path;
+    }
+    format = "%s\\%s";
+#else
+    home = getenv("HOME");
+    if (!home)
+        return -1;
+    format = "%s/%s";
+#endif
+
+    D("home '%s'\n", home);
+
+    if (snprintf(android_dir, sizeof(android_dir), format, home,
+                        ANDROID_PATH) >= (int)sizeof(android_dir))
+        return -1;
+
+    if (stat(android_dir, &buf)) {
+        if (adb_mkdir(android_dir, 0750) < 0) {
+            D("Cannot mkdir '%s'", android_dir);
+            return -1;
+        }
+    }
+
+    return snprintf(filename, len, format, android_dir, ADB_KEY_FILE);
+}
+
+static int get_user_key(struct listnode *list)
+{
+    struct stat buf;
+    char path[PATH_MAX];
+    int ret;
+
+    ret = get_user_keyfilepath(path, sizeof(path));
+    if (ret < 0 || ret >= (signed)sizeof(path)) {
+        D("Error getting user key filename");
+        return 0;
+    }
+
+    D("user key '%s'\n", path);
+
+    if (stat(path, &buf) == -1) {
+        if (!generate_key(path)) {
+            D("Failed to generate new key\n");
+            return 0;
+        }
+    }
+
+    return read_key(path, list);
+}
+
+static void get_vendor_keys(struct listnode *list)
+{
+    const char *adb_keys_path;
+    char keys_path[MAX_PAYLOAD];
+    char *path;
+    char *save;
+    struct stat buf;
+
+    adb_keys_path = getenv("ADB_VENDOR_KEYS");
+    if (!adb_keys_path)
+        return;
+    strncpy(keys_path, adb_keys_path, sizeof(keys_path));
+
+    path = adb_strtok_r(keys_path, ENV_PATH_SEPARATOR_STR, &save);
+    while (path) {
+        D("Reading: '%s'\n", path);
+
+        if (stat(path, &buf))
+            D("Can't read '%s'\n", path);
+        else if (!read_key(path, list))
+            D("Failed to read '%s'\n", path);
+
+        path = adb_strtok_r(NULL, ENV_PATH_SEPARATOR_STR, &save);
+    }
+}
+
+int adb_auth_sign(void *node, void *token, size_t token_size, void *sig)
+{
+    unsigned int len;
+    struct adb_private_key *key = node_to_item(node, struct adb_private_key, node);
+
+    if (!RSA_sign(NID_sha1, token, token_size, sig, &len, key->rsa)) {
+        return 0;
+    }
+
+    D("adb_auth_sign len=%d\n", len);
+    return (int)len;
+}
+
+void *adb_auth_nextkey(void *current)
+{
+    struct listnode *item;
+
+    if (list_empty(&key_list))
+        return NULL;
+
+    if (!current)
+        return list_head(&key_list);
+
+    list_for_each(item, &key_list) {
+        if (item == current) {
+            /* current is the last item, we tried all the keys */
+            if (item->next == &key_list)
+                return NULL;
+            return item->next;
+        }
+    }
+
+    return NULL;
+}
+
+int adb_auth_get_userkey(unsigned char *data, size_t len)
+{
+    char path[PATH_MAX];
+    char *file;
+    int ret;
+
+    ret = get_user_keyfilepath(path, sizeof(path) - 4);
+    if (ret < 0 || ret >= (signed)(sizeof(path) - 4)) {
+        D("Error getting user key filename");
+        return 0;
+    }
+    strcat(path, ".pub");
+
+    file = load_file(path, (unsigned*)&ret);
+    if (!file) {
+        D("Can't load '%s'\n", path);
+        return 0;
+    }
+
+    if (len < (size_t)(ret + 1)) {
+        D("%s: Content too large ret=%d\n", path, ret);
+        return 0;
+    }
+
+    memcpy(data, file, ret);
+    data[ret] = '\0';
+
+    return ret + 1;
+}
+
+void adb_auth_init(void)
+{
+    int ret;
+
+    D("adb_auth_init\n");
+
+    list_init(&key_list);
+
+    ret = get_user_key(&key_list);
+    if (!ret) {
+        D("Failed to get user key\n");
+        return;
+    }
+
+    get_vendor_keys(&key_list);
+}
diff --git a/adb/commandline.c b/adb/commandline.c
index d2b8166..24cbb5a 100644
--- a/adb/commandline.c
+++ b/adb/commandline.c
@@ -84,8 +84,8 @@
         "                                 returns an error if more than one USB device is present.\n"
         " -e                            - directs command to the only running emulator.\n"
         "                                 returns an error if more than one emulator is running.\n"
-        " -s <serial number>            - directs command to the USB device or emulator with\n"
-        "                                 the given serial number. Overrides ANDROID_SERIAL\n"
+        " -s <specific device>          - directs command to the device or emulator with the given\n"
+        "                                 serial number or qualifier. Overrides ANDROID_SERIAL\n"
         "                                 environment variable.\n"
         " -p <product name or path>     - simple product name like 'sooner', or\n"
         "                                 a relative/absolute path to a product\n"
@@ -93,7 +93,8 @@
         "                                 If -p is not specified, the ANDROID_PRODUCT_OUT\n"
         "                                 environment variable is used, which must\n"
         "                                 be an absolute path.\n"
-        " devices                       - list all connected devices\n"
+        " devices [-l]                  - list all connected devices\n"
+        "                                 ('-l' will also list device qualifiers)\n"
         " connect <host>[:<port>]       - connect to a device via TCP/IP\n"
         "                                 Port 5555 is used by default if no port number is specified.\n"
         " disconnect [<host>[:<port>]]  - disconnect from a TCP/IP device.\n"
@@ -159,6 +160,7 @@
         "  adb kill-server              - kill the server if it is running\n"
         "  adb get-state                - prints: offline | bootloader | device\n"
         "  adb get-serialno             - prints: <serial-number>\n"
+        "  adb get-devpath              - prints: <device-path>\n"
         "  adb status-window            - continuously print device status for a specified device\n"
         "  adb remount                  - remounts the /system partition on the device read-write\n"
         "  adb reboot [bootloader|recovery] - reboots the device, optionally into the bootloader or recovery program\n"
@@ -1016,7 +1018,16 @@
 
     if(!strcmp(argv[0], "devices")) {
         char *tmp;
-        snprintf(buf, sizeof buf, "host:%s", argv[0]);
+        char *listopt;
+        if (argc < 2)
+            listopt = "";
+        else if (argc == 2 && !strcmp(argv[1], "-l"))
+            listopt = argv[1];
+        else {
+            fprintf(stderr, "Usage: adb devices [-l]\n");
+            return 1;
+        }
+        snprintf(buf, sizeof buf, "host:%s%s", argv[0], listopt);
         tmp = adb_query(buf);
         if(tmp) {
             printf("List of devices attached \n");
@@ -1298,7 +1309,8 @@
     /* passthrough commands */
 
     if(!strcmp(argv[0],"get-state") ||
-        !strcmp(argv[0],"get-serialno"))
+        !strcmp(argv[0],"get-serialno") ||
+        !strcmp(argv[0],"get-devpath"))
     {
         char *tmp;
 
diff --git a/adb/protocol.txt b/adb/protocol.txt
index 398d042..c9d3c24 100644
--- a/adb/protocol.txt
+++ b/adb/protocol.txt
@@ -72,7 +72,25 @@
 The system identity string should be "<systemtype>:<serialno>:<banner>"
 where systemtype is "bootloader", "device", or "host", serialno is some
 kind of unique ID (or empty), and banner is a human-readable version
-or identifier string (informational only).
+or identifier string.  The banner is used to transmit useful properties.
+
+
+--- AUTH(type, 0, "data") ----------------------------------------------
+
+The AUTH message informs the recipient that authentication is required to
+connect to the sender. If type is TOKEN(1), data is a random token that
+the recipient can sign with a private key. The recipient replies with an
+AUTH packet where type is SIGNATURE(2) and data is the signature. If the
+signature verification succeeds, the sender replies with a CONNECT packet.
+
+If the signature verification fails, the sender replies with a new AUTH
+packet and a new random token, so that the recipient can retry signing
+with a different private key.
+
+Once the recipient has tried all its private keys, it can reply with an
+AUTH packet where type is RSAPUBLICKEY(3) and data is the public key. If
+possible, an on-screen confirmation may be displayed for the user to
+confirm they want to install the public key on the device.
 
 
 --- OPEN(local-id, 0, "destination") -----------------------------------
@@ -166,6 +184,7 @@
 
 #define A_SYNC 0x434e5953
 #define A_CNXN 0x4e584e43
+#define A_AUTH 0x48545541
 #define A_OPEN 0x4e45504f
 #define A_OKAY 0x59414b4f
 #define A_CLSE 0x45534c43
diff --git a/adb/sockets.c b/adb/sockets.c
index cd31b23..305cb44 100644
--- a/adb/sockets.c
+++ b/adb/sockets.c
@@ -608,12 +608,30 @@
     return n;
 }
 
+#define PREFIX(str) { str, sizeof(str) - 1 }
+static const struct prefix_struct {
+    const char *str;
+    const size_t len;
+} prefixes[] = {
+    PREFIX("usb:"),
+    PREFIX("product:"),
+    PREFIX("model:"),
+    PREFIX("device:"),
+};
+static const int num_prefixes = (sizeof(prefixes) / sizeof(prefixes[0]));
+
 /* skip_host_serial return the position in a string
    skipping over the 'serial' parameter in the ADB protocol,
    where parameter string may be a host:port string containing
    the protocol delimiter (colon). */
 char *skip_host_serial(char *service) {
     char *first_colon, *serial_end;
+    int i;
+
+    for (i = 0; i < num_prefixes; i++) {
+        if (!strncmp(service, prefixes[i].str, prefixes[i].len))
+            return strchr(service + prefixes[i].len, ':');
+    }
 
     first_colon = strchr(service, ':');
     if (!first_colon) {
diff --git a/adb/sysdeps.h b/adb/sysdeps.h
index e883557..0252ef3 100644
--- a/adb/sysdeps.h
+++ b/adb/sysdeps.h
@@ -38,6 +38,7 @@
 
 #define OS_PATH_SEPARATOR '\\'
 #define OS_PATH_SEPARATOR_STR "\\"
+#define ENV_PATH_SEPARATOR_STR ";"
 
 typedef CRITICAL_SECTION          adb_mutex_t;
 
@@ -254,6 +255,8 @@
     return isalpha(path[0]) && path[1] == ':' && path[2] == '\\';
 }
 
+extern char*  adb_strtok_r(char *str, const char *delim, char **saveptr);
+
 #else /* !_WIN32 a.k.a. Unix */
 
 #include "fdevent.h"
@@ -291,6 +294,7 @@
 
 #define OS_PATH_SEPARATOR '/'
 #define OS_PATH_SEPARATOR_STR "/"
+#define ENV_PATH_SEPARATOR_STR ":"
 
 typedef  pthread_mutex_t          adb_mutex_t;
 
@@ -506,6 +510,13 @@
     return path[0] == '/';
 }
 
+static __inline__ char*  adb_strtok_r(char *str, const char *delim, char **saveptr)
+{
+    return strtok_r(str, delim, saveptr);
+}
+#undef   strtok_r
+#define  strtok_r  ___xxx_strtok_r
+
 #endif /* !_WIN32 */
 
 #endif /* _ADB_SYSDEPS_H */
diff --git a/adb/sysdeps_win32.c b/adb/sysdeps_win32.c
index c426718..d41c42c 100644
--- a/adb/sysdeps_win32.c
+++ b/adb/sysdeps_win32.c
@@ -2140,3 +2140,81 @@
     InitializeCriticalSection( &_win32_lock );
 }
 
+/* Windows doesn't have strtok_r.  Use the one from bionic. */
+
+/*
+ * Copyright (c) 1988 Regents of the University of California.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+char *
+adb_strtok_r(char *s, const char *delim, char **last)
+{
+	char *spanp;
+	int c, sc;
+	char *tok;
+
+
+	if (s == NULL && (s = *last) == NULL)
+		return (NULL);
+
+	/*
+	 * Skip (span) leading delimiters (s += strspn(s, delim), sort of).
+	 */
+cont:
+	c = *s++;
+	for (spanp = (char *)delim; (sc = *spanp++) != 0;) {
+		if (c == sc)
+			goto cont;
+	}
+
+	if (c == 0) {		/* no non-delimiter characters */
+		*last = NULL;
+		return (NULL);
+	}
+	tok = s - 1;
+
+	/*
+	 * Scan token (scan for delimiters: s += strcspn(s, delim), sort of).
+	 * Note that delim must have one NUL; we stop if we see that, too.
+	 */
+	for (;;) {
+		c = *s++;
+		spanp = (char *)delim;
+		do {
+			if ((sc = *spanp++) == c) {
+				if (c == 0)
+					s = NULL;
+				else
+					s[-1] = 0;
+				*last = s;
+				return (tok);
+			}
+		} while (sc != 0);
+	}
+	/* NOTREACHED */
+}
diff --git a/adb/transport.c b/adb/transport.c
index 2f7bd27..9fd6cc2 100644
--- a/adb/transport.c
+++ b/adb/transport.c
@@ -370,7 +370,7 @@
     char  head[5];
     int   len;
 
-    len = list_transports(buffer+4, bufferlen-4);
+    len = list_transports(buffer+4, bufferlen-4, 0);
     snprintf(head, sizeof(head), "%04x", len);
     memcpy(buffer, head, 4);
     len += 4;
@@ -601,6 +601,12 @@
             free(t->product);
         if (t->serial)
             free(t->serial);
+        if (t->model)
+            free(t->model);
+        if (t->device)
+            free(t->device);
+        if (t->devpath)
+            free(t->devpath);
 
         memset(t,0xee,sizeof(atransport));
         free(t);
@@ -737,6 +743,45 @@
     dis->next = dis->prev = dis;
 }
 
+static int qual_char_is_invalid(char ch)
+{
+    if ('A' <= ch && ch <= 'Z')
+        return 0;
+    if ('a' <= ch && ch <= 'z')
+        return 0;
+    if ('0' <= ch && ch <= '9')
+        return 0;
+    return 1;
+}
+
+static int qual_match(const char *to_test,
+                      const char *prefix, const char *qual, int sanitize_qual)
+{
+    if (!to_test || !*to_test)
+        /* Return true if both the qual and to_test are null strings. */
+        return !qual || !*qual;
+
+    if (!qual)
+        return 0;
+
+    if (prefix) {
+        while (*prefix) {
+            if (*prefix++ != *to_test++)
+                return 0;
+        }
+    }
+
+    while (*qual) {
+        char ch = *qual++;
+        if (sanitize_qual && qual_char_is_invalid(ch))
+            ch = '_';
+        if (ch != *to_test++)
+            return 0;
+    }
+
+    /* Everything matched so far.  Return true if *to_test is a NUL. */
+    return !*to_test;
+}
 
 atransport *acquire_one_transport(int state, transport_type ttype, const char* serial, char** error_out)
 {
@@ -758,9 +803,19 @@
 
         /* check for matching serial number */
         if (serial) {
-            if (t->serial && !strcmp(serial, t->serial)) {
+            if ((t->serial && !strcmp(serial, t->serial)) ||
+                (t->devpath && !strcmp(serial, t->devpath)) ||
+                qual_match(serial, "product:", t->product, 0) ||
+                qual_match(serial, "model:", t->model, 1) ||
+                qual_match(serial, "device:", t->device, 0)) {
+                if (result) {
+                    if (error_out)
+                        *error_out = "more than one device";
+                    ambiguous = 1;
+                    result = NULL;
+                    break;
+                }
                 result = t;
-                break;
             }
         } else {
             if (ttype == kTransportUsb && t->type == kTransportUsb) {
@@ -837,7 +892,58 @@
     }
 }
 
-int list_transports(char *buf, size_t  bufsize)
+static void add_qual(char **buf, size_t *buf_size,
+                     const char *prefix, const char *qual, int sanitize_qual)
+{
+    size_t len;
+    int prefix_len;
+
+    if (!buf || !*buf || !buf_size || !*buf_size || !qual || !*qual)
+        return;
+
+    len = snprintf(*buf, *buf_size, "%s%n%s", prefix, &prefix_len, qual);
+
+    if (sanitize_qual) {
+        char *cp;
+        for (cp = *buf + prefix_len; cp < *buf + len; cp++) {
+            if (qual_char_is_invalid(*cp))
+                *cp = '_';
+        }
+    }
+
+    *buf_size -= len;
+    *buf += len;
+}
+
+static size_t format_transport(atransport *t, char *buf, size_t bufsize,
+                               int long_listing)
+{
+    const char* serial = t->serial;
+    if (!serial || !serial[0])
+        serial = "????????????";
+
+    if (!long_listing) {
+        return snprintf(buf, bufsize, "%s\t%s\n", serial, statename(t));
+    } else {
+        size_t len, remaining = bufsize;
+
+        len = snprintf(buf, remaining, "%-22s %s", serial, statename(t));
+        remaining -= len;
+        buf += len;
+
+        add_qual(&buf, &remaining, " ", t->devpath, 0);
+        add_qual(&buf, &remaining, " product:", t->product, 0);
+        add_qual(&buf, &remaining, " model:", t->model, 1);
+        add_qual(&buf, &remaining, " device:", t->device, 0);
+
+        len = snprintf(buf, remaining, "\n");
+        remaining -= len;
+
+        return bufsize - remaining;
+    }
+}
+
+int list_transports(char *buf, size_t  bufsize, int long_listing)
 {
     char*       p   = buf;
     char*       end = buf + bufsize;
@@ -847,11 +953,7 @@
         /* XXX OVERRUN PROBLEMS XXX */
     adb_mutex_lock(&transport_lock);
     for(t = transport_list.next; t != &transport_list; t = t->next) {
-        const char* serial = t->serial;
-        if (!serial || !serial[0])
-            serial = "????????????";
-        len = snprintf(p, end - p, "%s\t%s\n", serial, statename(t));
-
+        len = format_transport(t, p, end - p, long_listing);
         if (p + len >= end) {
             /* discard last line if buffer is too short */
             break;
@@ -956,7 +1058,7 @@
 
 #endif
 
-void register_usb_transport(usb_handle *usb, const char *serial, unsigned writeable)
+void register_usb_transport(usb_handle *usb, const char *serial, const char *devpath, unsigned writeable)
 {
     atransport *t = calloc(1, sizeof(atransport));
     D("transport: %p init'ing for usb_handle %p (sn='%s')\n", t, usb,
@@ -965,6 +1067,9 @@
     if(serial) {
         t->serial = strdup(serial);
     }
+    if(devpath) {
+        t->devpath = strdup(devpath);
+    }
     register_transport(t);
 }
 
diff --git a/adb/usb_libusb.c b/adb/usb_libusb.c
index 8c75266..06ff5dc 100644
--- a/adb/usb_libusb.c
+++ b/adb/usb_libusb.c
@@ -347,7 +347,7 @@
 
     adb_mutex_unlock(&usb_lock);
 
-    register_usb_transport(usb, serial, 1); 
+    register_usb_transport(usb, serial, NULL, 1); 
 
     return (1);
 }
diff --git a/adb/usb_linux.c b/adb/usb_linux.c
index 4d55b74..7bf2057 100644
--- a/adb/usb_linux.c
+++ b/adb/usb_linux.c
@@ -116,7 +116,8 @@
 
 }
 
-static void register_device(const char *dev_name, unsigned char ep_in, unsigned char ep_out,
+static void register_device(const char *dev_name, const char *devpath,
+                            unsigned char ep_in, unsigned char ep_out,
                             int ifc, int serial_index, unsigned zero_mask);
 
 static inline int badname(const char *name)
@@ -129,7 +130,7 @@
 
 static void find_usb_device(const char *base,
         void (*register_device_callback)
-                (const char *, unsigned char, unsigned char, int, int, unsigned))
+                (const char *, const char *, unsigned char, unsigned char, int, int, unsigned))
 {
     char busname[32], devname[32];
     unsigned char local_ep_in, local_ep_out;
@@ -227,6 +228,11 @@
                             is_adb_interface(vid, pid, interface->bInterfaceClass,
                             interface->bInterfaceSubClass, interface->bInterfaceProtocol))  {
 
+                        struct stat st;
+                        char pathbuf[128];
+                        char link[256];
+                        char *devpath = NULL;
+
                         DBGX("looking for bulk endpoints\n");
                             // looks like ADB...
                         ep1 = (struct usb_endpoint_descriptor *)bufptr;
@@ -263,7 +269,26 @@
                             local_ep_out = ep1->bEndpointAddress;
                         }
 
-                        register_device_callback(devname, local_ep_in, local_ep_out,
+                            // Determine the device path
+                        if (!fstat(fd, &st) && S_ISCHR(st.st_mode)) {
+                            char *slash;
+                            ssize_t link_len;
+                            snprintf(pathbuf, sizeof(pathbuf), "/sys/dev/char/%d:%d",
+                                     major(st.st_rdev), minor(st.st_rdev));
+                            link_len = readlink(pathbuf, link, sizeof(link) - 1);
+                            if (link_len > 0) {
+                                link[link_len] = '\0';
+                                slash = strrchr(link, '/');
+                                if (slash) {
+                                    snprintf(pathbuf, sizeof(pathbuf),
+                                             "usb:%s", slash + 1);
+                                    devpath = pathbuf;
+                                }
+                            }
+                        }
+
+                        register_device_callback(devname, devpath,
+                                local_ep_in, local_ep_out,
                                 interface->bInterfaceNumber, device->iSerialNumber, zero_mask);
                         break;
                     }
@@ -532,7 +557,7 @@
     return 0;
 }
 
-static void register_device(const char *dev_name,
+static void register_device(const char *dev_name, const char *devpath,
                             unsigned char ep_in, unsigned char ep_out,
                             int interface, int serial_index, unsigned zero_mask)
 {
@@ -644,7 +669,7 @@
     usb->next->prev = usb;
     adb_mutex_unlock(&usb_lock);
 
-    register_usb_transport(usb, serial, usb->writeable);
+    register_usb_transport(usb, serial, devpath, usb->writeable);
     return;
 
 fail:
diff --git a/adb/usb_linux_client.c b/adb/usb_linux_client.c
index 635fa4b..fb1dad0 100644
--- a/adb/usb_linux_client.c
+++ b/adb/usb_linux_client.c
@@ -19,6 +19,8 @@
 #include <unistd.h>
 #include <string.h>
 
+#include <linux/usb/ch9.h>
+#include <linux/usb/functionfs.h>
 #include <sys/ioctl.h>
 #include <sys/types.h>
 #include <dirent.h>
@@ -29,20 +31,122 @@
 #define   TRACE_TAG  TRACE_USB
 #include "adb.h"
 
+#define MAX_PACKET_SIZE_FS	64
+#define MAX_PACKET_SIZE_HS	512
+
+#define cpu_to_le16(x)  htole16(x)
+#define cpu_to_le32(x)  htole32(x)
 
 struct usb_handle
 {
-    int fd;
     adb_cond_t notify;
     adb_mutex_t lock;
+
+    int (*write)(usb_handle *h, const void *data, int len);
+    int (*read)(usb_handle *h, void *data, int len);
+    void (*kick)(usb_handle *h);
+
+    // Legacy f_adb
+    int fd;
+
+    // FunctionFS
+    int control;
+    int bulk_out; /* "out" from the host's perspective => source for adbd */
+    int bulk_in;  /* "in" from the host's perspective => sink for adbd */
 };
 
-void usb_cleanup()
-{
-    // nothing to do here
-}
+static const struct {
+    struct usb_functionfs_descs_head header;
+    struct {
+        struct usb_interface_descriptor intf;
+        struct usb_endpoint_descriptor_no_audio source;
+        struct usb_endpoint_descriptor_no_audio sink;
+    } __attribute__((packed)) fs_descs, hs_descs;
+} __attribute__((packed)) descriptors = {
+    .header = {
+        .magic = cpu_to_le32(FUNCTIONFS_DESCRIPTORS_MAGIC),
+        .length = cpu_to_le32(sizeof(descriptors)),
+        .fs_count = 3,
+        .hs_count = 3,
+    },
+    .fs_descs = {
+        .intf = {
+            .bLength = sizeof(descriptors.fs_descs.intf),
+            .bDescriptorType = USB_DT_INTERFACE,
+            .bInterfaceNumber = 0,
+            .bNumEndpoints = 2,
+            .bInterfaceClass = ADB_CLASS,
+            .bInterfaceSubClass = ADB_SUBCLASS,
+            .bInterfaceProtocol = ADB_PROTOCOL,
+            .iInterface = 1, /* first string from the provided table */
+        },
+        .source = {
+            .bLength = sizeof(descriptors.fs_descs.source),
+            .bDescriptorType = USB_DT_ENDPOINT,
+            .bEndpointAddress = 1 | USB_DIR_OUT,
+            .bmAttributes = USB_ENDPOINT_XFER_BULK,
+            .wMaxPacketSize = MAX_PACKET_SIZE_FS,
+        },
+        .sink = {
+            .bLength = sizeof(descriptors.fs_descs.sink),
+            .bDescriptorType = USB_DT_ENDPOINT,
+            .bEndpointAddress = 2 | USB_DIR_IN,
+            .bmAttributes = USB_ENDPOINT_XFER_BULK,
+            .wMaxPacketSize = MAX_PACKET_SIZE_FS,
+        },
+    },
+    .hs_descs = {
+        .intf = {
+            .bLength = sizeof(descriptors.hs_descs.intf),
+            .bDescriptorType = USB_DT_INTERFACE,
+            .bInterfaceNumber = 0,
+            .bNumEndpoints = 2,
+            .bInterfaceClass = ADB_CLASS,
+            .bInterfaceSubClass = ADB_SUBCLASS,
+            .bInterfaceProtocol = ADB_PROTOCOL,
+            .iInterface = 1, /* first string from the provided table */
+        },
+        .source = {
+            .bLength = sizeof(descriptors.hs_descs.source),
+            .bDescriptorType = USB_DT_ENDPOINT,
+            .bEndpointAddress = 1 | USB_DIR_OUT,
+            .bmAttributes = USB_ENDPOINT_XFER_BULK,
+            .wMaxPacketSize = MAX_PACKET_SIZE_HS,
+        },
+        .sink = {
+            .bLength = sizeof(descriptors.hs_descs.sink),
+            .bDescriptorType = USB_DT_ENDPOINT,
+            .bEndpointAddress = 2 | USB_DIR_IN,
+            .bmAttributes = USB_ENDPOINT_XFER_BULK,
+            .wMaxPacketSize = MAX_PACKET_SIZE_HS,
+        },
+    },
+};
 
-static void *usb_open_thread(void *x)
+#define STR_INTERFACE_ "ADB Interface"
+
+static const struct {
+    struct usb_functionfs_strings_head header;
+    struct {
+        __le16 code;
+        const char str1[sizeof(STR_INTERFACE_)];
+    } __attribute__((packed)) lang0;
+} __attribute__((packed)) strings = {
+    .header = {
+        .magic = cpu_to_le32(FUNCTIONFS_STRINGS_MAGIC),
+        .length = cpu_to_le32(sizeof(strings)),
+        .str_count = cpu_to_le32(1),
+        .lang_count = cpu_to_le32(1),
+    },
+    .lang0 = {
+        cpu_to_le16(0x0409), /* en-us */
+        STR_INTERFACE_,
+    },
+};
+
+
+
+static void *usb_adb_open_thread(void *x)
 {
     struct usb_handle *usb = (struct usb_handle *)x;
     int fd;
@@ -72,14 +176,14 @@
         usb->fd = fd;
 
         D("[ usb_thread - registering device ]\n");
-        register_usb_transport(usb, 0, 1);
+        register_usb_transport(usb, 0, 0, 1);
     }
 
     // never gets here
     return 0;
 }
 
-int usb_write(usb_handle *h, const void *data, int len)
+static int usb_adb_write(usb_handle *h, const void *data, int len)
 {
     int n;
 
@@ -94,7 +198,7 @@
     return 0;
 }
 
-int usb_read(usb_handle *h, void *data, int len)
+static int usb_adb_read(usb_handle *h, void *data, int len)
 {
     int n;
 
@@ -109,14 +213,31 @@
     return 0;
 }
 
-void usb_init()
+static void usb_adb_kick(usb_handle *h)
+{
+    D("usb_kick\n");
+    adb_mutex_lock(&h->lock);
+    adb_close(h->fd);
+    h->fd = -1;
+
+    // notify usb_adb_open_thread that we are disconnected
+    adb_cond_signal(&h->notify);
+    adb_mutex_unlock(&h->lock);
+}
+
+static void usb_adb_init()
 {
     usb_handle *h;
     adb_thread_t tid;
     int fd;
 
     h = calloc(1, sizeof(usb_handle));
+
+    h->write = usb_adb_write;
+    h->read = usb_adb_read;
+    h->kick = usb_adb_kick;
     h->fd = -1;
+
     adb_cond_init(&h->notify, 0);
     adb_mutex_init(&h->lock, 0);
 
@@ -133,25 +254,239 @@
     }
 
     D("[ usb_init - starting thread ]\n");
-    if(adb_thread_create(&tid, usb_open_thread, h)){
+    if(adb_thread_create(&tid, usb_adb_open_thread, h)){
         fatal_errno("cannot create usb thread");
     }
 }
 
-void usb_kick(usb_handle *h)
-{
-    D("usb_kick\n");
-    adb_mutex_lock(&h->lock);
-    adb_close(h->fd);
-    h->fd = -1;
 
-    // notify usb_open_thread that we are disconnected
+static void init_functionfs(struct usb_handle *h)
+{
+    ssize_t ret;
+
+    D("OPENING %s\n", USB_FFS_ADB_EP0);
+    h->control = adb_open(USB_FFS_ADB_EP0, O_RDWR);
+    if (h->control < 0) {
+        D("[ %s: cannot open control endpoint: errno=%d]\n", USB_FFS_ADB_EP0, errno);
+        goto err;
+    }
+
+    ret = adb_write(h->control, &descriptors, sizeof(descriptors));
+    if (ret < 0) {
+        D("[ %s: write descriptors failed: errno=%d ]\n", USB_FFS_ADB_EP0, errno);
+        goto err;
+    }
+
+    ret = adb_write(h->control, &strings, sizeof(strings));
+    if (ret < 0) {
+        D("[ %s: writing strings failed: errno=%d]\n", USB_FFS_ADB_EP0, errno);
+        goto err;
+    }
+
+    h->bulk_out = adb_open(USB_FFS_ADB_OUT, O_RDWR);
+    if (h->bulk_out < 0) {
+        D("[ %s: cannot open bulk-out ep: errno=%d ]\n", USB_FFS_ADB_OUT, errno);
+        goto err;
+    }
+
+    h->bulk_in = adb_open(USB_FFS_ADB_IN, O_RDWR);
+    if (h->bulk_in < 0) {
+        D("[ %s: cannot open bulk-in ep: errno=%d ]\n", USB_FFS_ADB_IN, errno);
+        goto err;
+    }
+
+    return;
+
+err:
+    if (h->bulk_in > 0) {
+        adb_close(h->bulk_in);
+        h->bulk_in = -1;
+    }
+    if (h->bulk_out > 0) {
+        adb_close(h->bulk_out);
+        h->bulk_out = -1;
+    }
+    if (h->control > 0) {
+        adb_close(h->control);
+        h->control = -1;
+    }
+    return;
+}
+
+static void *usb_ffs_open_thread(void *x)
+{
+    struct usb_handle *usb = (struct usb_handle *)x;
+
+    while (1) {
+        // wait until the USB device needs opening
+        adb_mutex_lock(&usb->lock);
+        while (usb->control != -1)
+            adb_cond_wait(&usb->notify, &usb->lock);
+        adb_mutex_unlock(&usb->lock);
+
+        while (1) {
+            init_functionfs(usb);
+
+            if (usb->control >= 0)
+                break;
+
+            adb_sleep_ms(1000);
+        }
+
+        D("[ usb_thread - registering device ]\n");
+        register_usb_transport(usb, 0, 0, 1);
+    }
+
+    // never gets here
+    return 0;
+}
+
+static int bulk_write(int bulk_in, const char *buf, size_t length)
+{
+    size_t count = 0;
+    int ret;
+
+    do {
+        ret = adb_write(bulk_in, buf + count, length - count);
+        if (ret < 0) {
+            if (errno != EINTR)
+                return ret;
+        } else {
+            count += ret;
+        }
+    } while (count < length);
+
+    D("[ bulk_write done fd=%d ]\n", bulk_in);
+    return count;
+}
+
+static int usb_ffs_write(usb_handle *h, const void *data, int len)
+{
+    int n;
+
+    D("about to write (fd=%d, len=%d)\n", h->bulk_in, len);
+    n = bulk_write(h->bulk_in, data, len);
+    if (n != len) {
+        D("ERROR: fd = %d, n = %d, errno = %d (%s)\n",
+            h->bulk_in, n, errno, strerror(errno));
+        return -1;
+    }
+    D("[ done fd=%d ]\n", h->bulk_in);
+    return 0;
+}
+
+static int bulk_read(int bulk_out, char *buf, size_t length)
+{
+    size_t count = 0;
+    int ret;
+
+    do {
+        ret = adb_read(bulk_out, buf + count, length - count);
+        if (ret < 0) {
+            if (errno != EINTR) {
+                D("[ bulk_read failed fd=%d length=%d count=%d ]\n",
+                                           bulk_out, length, count);
+                return ret;
+            }
+        } else {
+            count += ret;
+        }
+    } while (count < length);
+
+    return count;
+}
+
+static int usb_ffs_read(usb_handle *h, void *data, int len)
+{
+    int n;
+
+    D("about to read (fd=%d, len=%d)\n", h->bulk_out, len);
+    n = bulk_read(h->bulk_out, data, len);
+    if (n != len) {
+        D("ERROR: fd = %d, n = %d, errno = %d (%s)\n",
+            h->bulk_out, n, errno, strerror(errno));
+        return -1;
+    }
+    D("[ done fd=%d ]\n", h->bulk_out);
+    return 0;
+}
+
+static void usb_ffs_kick(usb_handle *h)
+{
+    int err;
+
+    err = ioctl(h->bulk_in, FUNCTIONFS_CLEAR_HALT);
+    if (err < 0)
+        D("[ kick: source (fd=%d) clear halt failed (%d) ]", h->bulk_in, errno);
+
+    err = ioctl(h->bulk_out, FUNCTIONFS_CLEAR_HALT);
+    if (err < 0)
+        D("[ kick: sink (fd=%d) clear halt failed (%d) ]", h->bulk_out, errno);
+
+    adb_mutex_lock(&h->lock);
+    adb_close(h->control);
+    adb_close(h->bulk_out);
+    adb_close(h->bulk_in);
+    h->control = h->bulk_out = h->bulk_in = -1;
+
+    // notify usb_ffs_open_thread that we are disconnected
     adb_cond_signal(&h->notify);
     adb_mutex_unlock(&h->lock);
 }
 
+static void usb_ffs_init()
+{
+    usb_handle *h;
+    adb_thread_t tid;
+
+    D("[ usb_init - using FunctionFS ]\n");
+
+    h = calloc(1, sizeof(usb_handle));
+
+    h->write = usb_ffs_write;
+    h->read = usb_ffs_read;
+    h->kick = usb_ffs_kick;
+
+    h->control  = -1;
+    h->bulk_out = -1;
+    h->bulk_out = -1;
+
+    adb_cond_init(&h->notify, 0);
+    adb_mutex_init(&h->lock, 0);
+
+    D("[ usb_init - starting thread ]\n");
+    if (adb_thread_create(&tid, usb_ffs_open_thread, h)){
+        fatal_errno("[ cannot create usb thread ]\n");
+    }
+}
+
+void usb_init()
+{
+    if (access(USB_FFS_ADB_EP0, F_OK) == 0)
+        usb_ffs_init();
+    else
+        usb_adb_init();
+}
+
+void usb_cleanup()
+{
+}
+
+int usb_write(usb_handle *h, const void *data, int len)
+{
+    return h->write(h, data, len);
+}
+
+int usb_read(usb_handle *h, void *data, int len)
+{
+    return h->read(h, data, len);
+}
 int usb_close(usb_handle *h)
 {
-    // nothing to do here
     return 0;
 }
+
+void usb_kick(usb_handle *h)
+{
+    h->kick(h);
+}
diff --git a/adb/usb_osx.c b/adb/usb_osx.c
index 00d02da..45ce444 100644
--- a/adb/usb_osx.c
+++ b/adb/usb_osx.c
@@ -125,10 +125,13 @@
     IOUSBDeviceInterface197  **dev = NULL;
     HRESULT                  result;
     SInt32                   score;
+    UInt32                   locationId;
     UInt16                   vendor;
     UInt16                   product;
     UInt8                    serialIndex;
     char                     serial[256];
+    char                     devpathBuf[64];
+    char                     *devpath = NULL;
 
     while ((usbInterface = IOIteratorNext(iterator))) {
         //* Create an intermediate interface plugin
@@ -192,6 +195,11 @@
 
         kr = (*dev)->GetDeviceVendor(dev, &vendor);
         kr = (*dev)->GetDeviceProduct(dev, &product);
+        kr = (*dev)->GetLocationID(dev, &locationId);
+        if (kr == 0) {
+            snprintf(devpathBuf, sizeof(devpathBuf), "usb:%lX", locationId);
+            devpath = devpathBuf;
+        }
         kr = (*dev)->USBGetSerialNumberStringIndex(dev, &serialIndex);
 
 	if (serialIndex > 0) {
@@ -256,7 +264,7 @@
         }
 
         DBG("AndroidDeviceAdded calling register_usb_transport\n");
-        register_usb_transport(handle, (serial[0] ? serial : NULL), 1);
+        register_usb_transport(handle, (serial[0] ? serial : NULL), devpath, 1);
 
         // Register for an interest notification of this device being removed.
         // Pass the reference to our private data as the refCon for the
diff --git a/adb/usb_vendors.c b/adb/usb_vendors.c
index b988115..d4ddce4 100644
--- a/adb/usb_vendors.c
+++ b/adb/usb_vendors.c
@@ -127,6 +127,8 @@
 #define VENDOR_ID_LAB126        0x1949
 // Yulong Coolpad's USB Vendor ID
 #define VENDOR_ID_YULONG_COOLPAD 0x1EBF
+// Kobo's USB Vendor ID
+#define VENDOR_ID_KOBO          0x2237
 
 /** built-in vendor list */
 int builtInVendorIds[] = {
@@ -176,6 +178,7 @@
     VENDOR_ID_SONY,
     VENDOR_ID_LAB126,
     VENDOR_ID_YULONG_COOLPAD,
+    VENDOR_ID_KOBO,
 };
 
 #define BUILT_IN_VENDOR_COUNT    (sizeof(builtInVendorIds)/sizeof(builtInVendorIds[0]))
diff --git a/adb/usb_windows.c b/adb/usb_windows.c
index 251bf17..4936b77 100644
--- a/adb/usb_windows.c
+++ b/adb/usb_windows.c
@@ -490,7 +490,7 @@
                                 true)) {
             // Lets make sure that we don't duplicate this device
             if (register_new_device(handle)) {
-              register_usb_transport(handle, serial_number, 1);
+              register_usb_transport(handle, serial_number, NULL, 1);
             } else {
               D("register_new_device failed for %s\n", interf_name);
               usb_cleanup_handle(handle);
diff --git a/charger/Android.mk b/charger/Android.mk
index 5367a98..fe0c91d 100644
--- a/charger/Android.mk
+++ b/charger/Android.mk
@@ -8,6 +8,10 @@
 LOCAL_SRC_FILES := \
 	charger.c
 
+ifeq ($(strip $(BOARD_CHARGER_DISABLE_INIT_BLANK)),true)
+LOCAL_CFLAGS := -DCHARGER_DISABLE_INIT_BLANK
+endif
+
 LOCAL_MODULE := charger
 LOCAL_MODULE_TAGS := optional
 LOCAL_FORCE_STATIC_EXECUTABLE := true
@@ -17,7 +21,7 @@
 LOCAL_C_INCLUDES := bootable/recovery
 
 LOCAL_STATIC_LIBRARIES := libminui libpixelflinger_static libpng
-LOCAL_STATIC_LIBRARIES += libz libstdc++ libcutils libc
+LOCAL_STATIC_LIBRARIES += libz libstdc++ libcutils libm libc
 
 include $(BUILD_EXECUTABLE)
 
diff --git a/charger/charger.c b/charger/charger.c
index 76be076..c5e4ec2 100644
--- a/charger/charger.c
+++ b/charger/charger.c
@@ -975,7 +975,9 @@
 
     ev_sync_key_state(set_key_callback, charger);
 
+#ifndef CHARGER_DISABLE_INIT_BLANK
     gr_fb_blank(true);
+#endif
 
     charger->next_screen_transition = now - 1;
     charger->next_key_check = -1;
diff --git a/debuggerd/arm/machine.c b/debuggerd/arm/machine.c
index 1c2e13f..160db7b 100644
--- a/debuggerd/arm/machine.c
+++ b/debuggerd/arm/machine.c
@@ -53,7 +53,8 @@
         /* catch underflow */
         p = 0;
     }
-    end = p + 80;
+    /* Dump more memory content for the crashing thread. */
+    end = p + 256;
     /* catch overflow; 'end - p' has to be multiples of 16 */
     while (end < p)
         end -= 16;
@@ -81,6 +82,8 @@
             long data = ptrace(PTRACE_PEEKTEXT, tid, (void*)p, NULL);
             sprintf(code_buffer + strlen(code_buffer), "%08lx ", data);
 
+            /* Enable the following code blob to dump ASCII values */
+#if 0
             int j;
             for (j = 0; j < 4; j++) {
                 /*
@@ -95,6 +98,7 @@
                     *asc_out++ = '.';
                 }
             }
+#endif
             p += 4;
         }
         *asc_out = '\0';
diff --git a/debuggerd/tombstone.c b/debuggerd/tombstone.c
index 012337b..592f4f2 100644
--- a/debuggerd/tombstone.c
+++ b/debuggerd/tombstone.c
@@ -128,6 +128,15 @@
     return "?";
 }
 
+static void dump_revision_info(log_t* log)
+{
+    char revision[PROPERTY_VALUE_MAX];
+
+    property_get("ro.revision", revision, "unknown");
+
+    _LOG(log, false, "Revision: '%s'\n", revision);
+}
+
 static void dump_build_info(log_t* log)
 {
     char fingerprint[PROPERTY_VALUE_MAX];
@@ -599,6 +608,7 @@
     _LOG(log, false,
             "*** *** *** *** *** *** *** *** *** *** *** *** *** *** *** ***\n");
     dump_build_info(log);
+    dump_revision_info(log);
     dump_thread_info(log, pid, tid, true);
     if(signal) {
         dump_fault_addr(log, tid, signal);
diff --git a/fastboot/Android.mk b/fastboot/Android.mk
index 905f759..92e9219 100644
--- a/fastboot/Android.mk
+++ b/fastboot/Android.mk
@@ -65,7 +65,7 @@
 include $(BUILD_HOST_EXECUTABLE)
 
 
-$(call dist-for-goals,dist_files,$(LOCAL_BUILT_MODULE))
+$(call dist-for-goals,dist_files sdk,$(LOCAL_BUILT_MODULE))
 
 
 ifeq ($(HOST_OS),linux)
diff --git a/fastboot/engine.c b/fastboot/engine.c
index 93be3de..7a55260 100644
--- a/fastboot/engine.c
+++ b/fastboot/engine.c
@@ -144,6 +144,39 @@
     { "ext4", generate_ext4_image, cleanup_image }
 };
 
+/* Return true if this partition is supported by the fastboot format command.
+ * It is also used to determine if we should first erase a partition before
+ * flashing it with an ext4 filesystem.  See needs_erase()
+ *
+ * Not all devices report the filesystem type, so don't report any errors,
+ * just return false.
+ */
+int fb_format_supported(usb_handle *usb, const char *partition)
+{
+    char response[FB_RESPONSE_SZ+1];
+    struct generator *generator = NULL;
+    int status;
+    unsigned int i;
+
+    status = fb_getvar(usb, response, "partition-type:%s", partition);
+    if (status) {
+        return 0;
+    }
+
+    for (i = 0; i < ARRAY_SIZE(generators); i++) {
+        if (!strncmp(generators[i].fs_type, response, FB_RESPONSE_SZ)) {
+            generator = &generators[i];
+            break;
+        }
+    }
+
+    if (generator) {
+        return 1;
+    }
+
+    return 0;
+}
+
 static int cb_default(Action *a, int status, char *resp)
 {
     if (status) {
@@ -565,6 +598,8 @@
     int status = 0;
 
     a = action_list;
+    if (!a)
+        return status;
     resp[FB_RESPONSE_SZ] = 0;
 
     double start = -1;
@@ -605,3 +640,8 @@
     fprintf(stderr,"finished. total time: %.3fs\n", (now() - start));
     return status;
 }
+
+int fb_queue_is_empty(void)
+{
+    return (action_list == NULL);
+}
diff --git a/fastboot/fastboot.c b/fastboot/fastboot.c
index c9def7b..3de6d7d 100644
--- a/fastboot/fastboot.c
+++ b/fastboot/fastboot.c
@@ -70,6 +70,7 @@
 static const char *cmdline = 0;
 static int wipe_data = 0;
 static unsigned short vendor_id = 0;
+static int long_listing = 0;
 static int64_t sparse_limit = -1;
 static int64_t target_sparse_limit = -1;
 
@@ -187,6 +188,11 @@
 
 int match_fastboot(usb_ifc_info *info)
 {
+    return match_fastboot_with_serial(info, serial);
+}
+
+int match_fastboot_with_serial(usb_ifc_info *info, const char *local_serial)
+{
     if(!(vendor_id && (info->dev_vendor == vendor_id)) &&
        (info->dev_vendor != 0x18d1) &&  // Google
        (info->dev_vendor != 0x8087) &&  // Intel
@@ -204,15 +210,16 @@
     if(info->ifc_class != 0xff) return -1;
     if(info->ifc_subclass != 0x42) return -1;
     if(info->ifc_protocol != 0x03) return -1;
-    // require matching serial number if a serial number is specified
+    // require matching serial number or device path if requested
     // at the command line with the -s option.
-    if (serial && strcmp(serial, info->serial_number) != 0) return -1;
+    if (local_serial && (strcmp(local_serial, info->serial_number) != 0 &&
+                   strcmp(local_serial, info->device_path) != 0)) return -1;
     return 0;
 }
 
 int list_devices_callback(usb_ifc_info *info)
 {
-    if (match_fastboot(info) == 0) {
+    if (match_fastboot_with_serial(info, NULL) == 0) {
         char* serial = info->serial_number;
         if (!info->writable) {
             serial = "no permissions"; // like "adb devices"
@@ -221,7 +228,13 @@
             serial = "????????????";
         }
         // output compatible with "adb devices"
-        printf("%s\tfastboot\n", serial);
+        if (!long_listing) {
+            printf("%s\tfastboot\n", serial);
+        } else if (!info->device_path) {
+            printf("%-22s fastboot\n", serial);
+        } else {
+            printf("%-22s fastboot %s\n", serial, info->device_path);
+        }
     }
 
     return -1;
@@ -274,8 +287,13 @@
             "  help                                     show this help message\n"
             "\n"
             "options:\n"
-            "  -w                                       erase userdata and cache\n"
-            "  -s <serial number>                       specify device serial number\n"
+            "  -w                                       erase userdata and cache (and format\n"
+            "                                           if supported by partition type)\n"
+            "  -u                                       do not first erase partition before\n"
+            "                                           formatting\n"
+            "  -s <specific device>                     specify device serial number\n"
+            "                                           or path to device port\n"
+            "  -l                                       with \"devices\", lists device paths\n"
             "  -p <product>                             specify product name\n"
             "  -c <cmdline>                             override kernel commandline\n"
             "  -i <vendor id>                           specify a custom USB vendor id\n"
@@ -547,6 +565,18 @@
     return 0;
 }
 
+/* Until we get lazy inode table init working in make_ext4fs, we need to
+ * erase partitions of type ext4 before flashing a filesystem so no stale
+ * inodes are left lying around.  Otherwise, e2fsck gets very upset.
+ */
+static int needs_erase(const char *part)
+{
+    /* The function fb_format_supported() currently returns the value
+     * we want, so just call it.
+     */
+     return fb_format_supported(usb, part);
+}
+
 void do_flash(usb_handle *usb, const char *pname, const char *fname)
 {
     int64_t sz64;
@@ -582,7 +612,7 @@
     fb_queue_command("signature", "installing signature");
 }
 
-void do_update(char *fn)
+void do_update(char *fn, int erase_first)
 {
     void *zdata;
     unsigned zsize;
@@ -620,17 +650,26 @@
     data = unzip_file(zip, "boot.img", &sz);
     if (data == 0) die("update package missing boot.img");
     do_update_signature(zip, "boot.sig");
+    if (erase_first && needs_erase("boot")) {
+        fb_queue_erase("boot");
+    }
     fb_queue_flash("boot", data, sz);
 
     data = unzip_file(zip, "recovery.img", &sz);
     if (data != 0) {
         do_update_signature(zip, "recovery.sig");
+        if (erase_first && needs_erase("recovery")) {
+            fb_queue_erase("recovery");
+        }
         fb_queue_flash("recovery", data, sz);
     }
 
     data = unzip_file(zip, "system.img", &sz);
     if (data == 0) die("update package missing system.img");
     do_update_signature(zip, "system.sig");
+    if (erase_first && needs_erase("system")) {
+        fb_queue_erase("system");
+    }
     fb_queue_flash("system", data, sz);
 }
 
@@ -652,7 +691,7 @@
     fb_queue_command("signature", "installing signature");
 }
 
-void do_flashall(void)
+void do_flashall(int erase_first)
 {
     char *fname;
     void *data;
@@ -672,12 +711,18 @@
     data = load_file(fname, &sz);
     if (data == 0) die("could not load boot.img: %s", strerror(errno));
     do_send_signature(fname);
+    if (erase_first && needs_erase("boot")) {
+        fb_queue_erase("boot");
+    }
     fb_queue_flash("boot", data, sz);
 
     fname = find_item("recovery", product);
     data = load_file(fname, &sz);
     if (data != 0) {
         do_send_signature(fname);
+        if (erase_first && needs_erase("recovery")) {
+            fb_queue_erase("recovery");
+        }
         fb_queue_flash("recovery", data, sz);
     }
 
@@ -685,6 +730,9 @@
     data = load_file(fname, &sz);
     if (data == 0) die("could not load system.img: %s", strerror(errno));
     do_send_signature(fname);
+    if (erase_first && needs_erase("system")) {
+        fb_queue_erase("system");
+    }
     fb_queue_flash("system", data, sz);
 }
 
@@ -755,6 +803,7 @@
     int wants_wipe = 0;
     int wants_reboot = 0;
     int wants_reboot_bootloader = 0;
+    int erase_first = 1;
     void *data;
     unsigned sz;
     unsigned page_size = 2048;
@@ -767,7 +816,7 @@
     serial = getenv("ANDROID_SERIAL");
 
     while (1) {
-        c = getopt_long(argc, argv, "wb:n:s:S:p:c:i:m:h", &longopts, NULL);
+        c = getopt_long(argc, argv, "wub:n:s:S:lp:c:i:m:h", &longopts, NULL);
         if (c < 0) {
             break;
         }
@@ -776,6 +825,9 @@
         case 'w':
             wants_wipe = 1;
             break;
+        case 'u':
+            erase_first = 0;
+            break;
         case 'b':
             base_addr = strtoul(optarg, 0, 16);
             break;
@@ -792,6 +844,9 @@
                     die("invalid sparse limit");
             }
             break;
+        case 'l':
+            long_listing = 1;
+            break;
         case 'p':
             product = optarg;
             break;
@@ -846,10 +901,18 @@
             skip(2);
         } else if(!strcmp(*argv, "erase")) {
             require(2);
+
+            if (fb_format_supported(usb, argv[1])) {
+                fprintf(stderr, "******** Did you mean to fastboot format this partition?\n");
+            }
+
             fb_queue_erase(argv[1]);
             skip(2);
         } else if(!strcmp(*argv, "format")) {
             require(2);
+            if (erase_first && needs_erase(argv[1])) {
+                fb_queue_erase(argv[1]);
+            }
             fb_queue_format(argv[1], 0);
             skip(2);
         } else if(!strcmp(*argv, "signature")) {
@@ -897,6 +960,9 @@
                 skip(2);
             }
             if (fname == 0) die("cannot determine image filename for '%s'", pname);
+            if (erase_first && needs_erase(pname)) {
+                fb_queue_erase(pname);
+            }
             do_flash(usb, pname, fname);
         } else if(!strcmp(*argv, "flash:raw")) {
             char *pname = argv[1];
@@ -914,14 +980,14 @@
             fb_queue_flash(pname, data, sz);
         } else if(!strcmp(*argv, "flashall")) {
             skip(1);
-            do_flashall();
+            do_flashall(erase_first);
             wants_reboot = 1;
         } else if(!strcmp(*argv, "update")) {
             if (argc > 1) {
-                do_update(argv[1]);
+                do_update(argv[1], erase_first);
                 skip(2);
             } else {
-                do_update("update.zip");
+                do_update("update.zip", erase_first);
                 skip(1);
             }
             wants_reboot = 1;
@@ -945,6 +1011,9 @@
         fb_queue_command("reboot-bootloader", "rebooting into bootloader");
     }
 
+    if (fb_queue_is_empty())
+        return 0;
+
     status = fb_execute_queue(usb);
     return (status) ? 1 : 0;
 }
diff --git a/fastboot/fastboot.h b/fastboot/fastboot.h
index 9177932..c1b2964 100644
--- a/fastboot/fastboot.h
+++ b/fastboot/fastboot.h
@@ -45,7 +45,8 @@
 
 /* engine.c - high level command queue engine */
 int fb_getvar(struct usb_handle *usb, char *response, const char *fmt, ...);
-void fb_queue_flash(const char *ptn, void *data, unsigned sz);;
+int fb_format_supported(usb_handle *usb, const char *partition);
+void fb_queue_flash(const char *ptn, void *data, unsigned sz);
 void fb_queue_flash_sparse(const char *ptn, struct sparse_file *s, unsigned sz);
 void fb_queue_erase(const char *ptn);
 void fb_queue_format(const char *ptn, int skip_if_not_supported);
@@ -58,6 +59,7 @@
 void fb_queue_download(const char *name, void *data, unsigned size);
 void fb_queue_notice(const char *notice);
 int fb_execute_queue(usb_handle *usb);
+int fb_queue_is_empty(void);
 
 /* util stuff */
 void die(const char *fmt, ...);
diff --git a/fastboot/usb.h b/fastboot/usb.h
index df9efde..d504ee2 100644
--- a/fastboot/usb.h
+++ b/fastboot/usb.h
@@ -53,6 +53,7 @@
     unsigned char writable;
 
     char serial_number[256];
+    char device_path[256];
 };
 
 typedef int (*ifc_match_func)(usb_ifc_info *ifc);
diff --git a/fastboot/usb_linux.c b/fastboot/usb_linux.c
index 83c6de9..b7a9ca3 100644
--- a/fastboot/usb_linux.c
+++ b/fastboot/usb_linux.c
@@ -32,6 +32,7 @@
 #include <string.h>
 
 #include <sys/ioctl.h>
+#include <sys/stat.h>
 #include <sys/types.h>
 #include <dirent.h>
 #include <fcntl.h>
@@ -107,6 +108,9 @@
     int in, out;
     unsigned i;
     unsigned e;
+    
+    struct stat st;
+    int result;
 
     if(check(ptr, len, USB_DT_DEVICE, USB_DT_DEVICE_SIZE))
         return -1;
@@ -134,7 +138,6 @@
         // Keep it short enough because some bootloaders are borked if the URB len is > 255
         // 128 is too big by 1.
         __u16 buffer[127];
-        int result;
 
         memset(buffer, 0, sizeof(buffer));
 
@@ -158,6 +161,42 @@
         }
     }
 
+    /* We need to get a path that represents a particular port on a particular
+     * hub.  We are passed an fd that was obtained by opening an entry under
+     * /dev/bus/usb.  Unfortunately, the names of those entries change each
+     * time devices are plugged and unplugged.  So how to get a repeatable
+     * path?  udevadm provided the inspiration.  We can get the major and
+     * minor of the device file, read the symlink that can be found here:
+     *   /sys/dev/char/<major>:<minor>
+     * and then use the last element of that path.  As a concrete example, I
+     * have an Android device at /dev/bus/usb/001/027 so working with bash:
+     *   $ ls -l /dev/bus/usb/001/027
+     *   crw-rw-r-- 1 root plugdev 189, 26 Apr  9 11:03 /dev/bus/usb/001/027
+     *   $ ls -l /sys/dev/char/189:26
+     *   lrwxrwxrwx 1 root root 0 Apr  9 11:03 /sys/dev/char/189:26 ->
+     *           ../../devices/pci0000:00/0000:00:1a.7/usb1/1-4/1-4.2/1-4.2.3
+     * So our device_path would be 1-4.2.3 which says my device is connected
+     * to port 3 of a hub on port 2 of a hub on port 4 of bus 1 (per
+     * http://www.linux-usb.org/FAQ.html).
+     */
+    info.device_path[0] = '\0';
+    result = fstat(fd, &st);
+    if (!result && S_ISCHR(st.st_mode)) {
+        char cdev[128];
+        char link[256];
+        char *slash;
+        ssize_t link_len;
+        snprintf(cdev, sizeof(cdev), "/sys/dev/char/%d:%d",
+                 major(st.st_rdev), minor(st.st_rdev));
+        link_len = readlink(cdev, link, sizeof(link) - 1);
+        if (link_len > 0) {
+            link[link_len] = '\0';
+            slash = strrchr(link, '/');
+            if (slash)
+                snprintf(info.device_path, sizeof(info.device_path), "usb:%s", slash+1);
+        }
+    }
+
     for(i = 0; i < cfg->bNumInterfaces; i++) {
         if(check(ptr, len, USB_DT_INTERFACE, USB_DT_INTERFACE_SIZE))
             return -1;
diff --git a/fastboot/usb_osx.c b/fastboot/usb_osx.c
index cbce9bd..1548ba8 100644
--- a/fastboot/usb_osx.c
+++ b/fastboot/usb_osx.c
@@ -264,6 +264,7 @@
     SInt32 score;
     HRESULT result;
     UInt8 serialIndex;
+    UInt32 locationId;
 
     // Create an intermediate plugin.
     kr = IOCreatePlugInInterfaceForService(device,
@@ -322,6 +323,13 @@
         goto error;
     }
 
+    kr = (*dev)->GetLocationID(dev, &locationId);
+    if (kr != 0) {
+        ERR("GetLocationId");
+        goto error;
+    }
+    snprintf(handle->info.device_path, sizeof(handle->info.device_path), "usb:%lX", locationId);
+
     kr = (*dev)->USBGetSerialNumberStringIndex(dev, &serialIndex);
 
     if (serialIndex > 0) {
diff --git a/fastboot/usb_windows.c b/fastboot/usb_windows.c
index 99027cc..7aa36b2 100644
--- a/fastboot/usb_windows.c
+++ b/fastboot/usb_windows.c
@@ -311,6 +311,8 @@
         info.serial_number[0] = 0;
     }
 
+    info.device_path[0] = 0;
+
     if (callback(&info) == 0) {
         return 1;
     }
diff --git a/fs_mgr/fs_mgr.c b/fs_mgr/fs_mgr.c
index 2661b02..2bcc9c4 100644
--- a/fs_mgr/fs_mgr.c
+++ b/fs_mgr/fs_mgr.c
@@ -58,6 +58,12 @@
     { "ro",         MS_RDONLY },
     { "rw",         0 },
     { "remount",    MS_REMOUNT },
+    { "bind",       MS_BIND },
+    { "rec",        MS_REC },
+    { "unbindable", MS_UNBINDABLE },
+    { "private",    MS_PRIVATE },
+    { "slave",      MS_SLAVE },
+    { "shared",     MS_SHARED },
     { "defaults",   0 },
     { 0,            0 },
 };
diff --git a/include/arch/darwin-x86/AndroidConfig.h b/include/arch/darwin-x86/AndroidConfig.h
deleted file mode 100644
index 48f8d9a..0000000
--- a/include/arch/darwin-x86/AndroidConfig.h
+++ /dev/null
@@ -1,318 +0,0 @@
-/*
- * Copyright (C) 2005 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-/*
- * Android config -- "Darwin".  Used for X86 Mac OS X.
- */
-#ifndef _ANDROID_CONFIG_H
-#define _ANDROID_CONFIG_H
-
-/*
- * ===========================================================================
- *                              !!! IMPORTANT !!!
- * ===========================================================================
- *
- * This file is included by ALL C/C++ source files.  Don't put anything in
- * here unless you are absolutely certain it can't go anywhere else.
- *
- * Any C++ stuff must be wrapped with "#ifdef __cplusplus".  Do not use "//"
- * comments.
- */
-
-/*
- * Threading model.  Choose one:
- *
- * HAVE_PTHREADS - use the pthreads library.
- * HAVE_WIN32_THREADS - use Win32 thread primitives.
- *  -- combine HAVE_CREATETHREAD, HAVE_CREATEMUTEX, and HAVE__BEGINTHREADEX
- */
-#define HAVE_PTHREADS
-
-/*
- * Do we have the futex syscall?
- */
-
-/* #define HAVE_FUTEX */
-
-/*
- * Process creation model.  Choose one:
- *
- * HAVE_FORKEXEC - use fork() and exec()
- * HAVE_WIN32_PROC - use CreateProcess()
- */
-#define HAVE_FORKEXEC
-
-/*
- * Process out-of-memory adjustment.  Set if running on Linux,
- * where we can write to /proc/<pid>/oom_adj to modify the out-of-memory
- * badness adjustment.
- */
-/* #define HAVE_OOM_ADJ */
-
-/*
- * IPC model.  Choose one:
- *
- * HAVE_SYSV_IPC - use the classic SysV IPC mechanisms (semget, shmget).
- * HAVE_MACOSX_IPC - use Macintosh IPC mechanisms (sem_open, mmap).
- * HAVE_WIN32_IPC - use Win32 IPC (CreateSemaphore, CreateFileMapping).
- * HAVE_ANDROID_IPC - use Android versions (?, mmap).
- */
-#define HAVE_MACOSX_IPC
-
-/*
- * Memory-mapping model. Choose one:
- *
- * HAVE_POSIX_FILEMAP - use the Posix sys/mmap.h
- * HAVE_WIN32_FILEMAP - use Win32 filemaps
- */
-#define  HAVE_POSIX_FILEMAP
-
-/*
- * Define this if you have <termio.h>
- */
-#define  HAVE_TERMIO_H
-
-/*
- * Define this if you have <sys/sendfile.h>
- */
-/* #define  HAVE_SYS_SENDFILE_H 1 */
-
-/*
- * Define this if you build against MSVCRT.DLL
- */
-/* #define HAVE_MS_C_RUNTIME */
-
-/*
- * Define this if you have sys/uio.h
- */
-#define  HAVE_SYS_UIO_H
-
-/*
- * Define this if your platforms implements symbolic links
- * in its filesystems
- */
-#define HAVE_SYMLINKS
-
-/*
- * Define this if we have localtime_r().
- */
-#define HAVE_LOCALTIME_R 1
-
-/*
- * Define this if we have gethostbyname_r().
- */
-/* #define HAVE_GETHOSTBYNAME_R */
-
-/*
- * Define this if we have ioctl().
- */
-/* #define HAVE_IOCTL */
-
-/*
- * Define this if we want to use WinSock.
- */
-/* #define HAVE_WINSOCK */
-
-/*
- * Define this if have clock_gettime() and friends
- */
-/* #define HAVE_POSIX_CLOCKS */
-
-/*
- * Define this if we have pthread_cond_timedwait_monotonic() and
- * clock_gettime(CLOCK_MONOTONIC).
- */
-/* #define HAVE_TIMEDWAIT_MONOTONIC */
-
-/*
- * Endianness of the target machine.  Choose one:
- *
- * HAVE_ENDIAN_H -- have endian.h header we can include.
- * HAVE_LITTLE_ENDIAN -- we are little endian.
- * HAVE_BIG_ENDIAN -- we are big endian.
- */
-#if (defined(__ppc__) || defined(__ppc64__))
-#   define HAVE_BIG_ENDIAN
-#elif (defined(__i386__) || defined(__x86_64__))
-#   define HAVE_LITTLE_ENDIAN
-#endif
-
-/*
- * We need to choose between 32-bit and 64-bit off_t.  All of our code should
- * agree on the same size.  For desktop systems, use 64-bit values,
- * because some of our libraries (e.g. wxWidgets) expect to be built that way.
- */
-#define _FILE_OFFSET_BITS 64
-#define _LARGEFILE_SOURCE 1
-
-/*
- * Define if platform has off64_t (and lseek64 and other xxx64 functions)
- */
-/* #define HAVE_OFF64_T */
-
-/*
- * Defined if we have the backtrace() call for retrieving a stack trace.
- * Needed for CallStack to operate; if not defined, CallStack is
- * non-functional.
- */
-#define HAVE_BACKTRACE 0
-
-/*
- * Defined if we have the dladdr() call for retrieving the symbol associated
- * with a memory address.  If not defined, stack crawls will not have symbolic
- * information.
- */
-#define HAVE_DLADDR 0
-
-/*
- * Defined if we have the cxxabi.h header for demangling C++ symbols.  If
- * not defined, stack crawls will be displayed with raw mangled symbols
- */
-#define HAVE_CXXABI 0
-
-/*
- * Defined if we have the gettid() system call.
- */
-/* #define HAVE_GETTID */
-
-
-/*
- * Add any extra platform-specific defines here.
- */
-#define _THREAD_SAFE
-
-/*
- * Define if we have <malloc.h> header
- */
-/* #define HAVE_MALLOC_H */
-
-/*
- * Define if tm struct has tm_gmtoff field
- */
-#define HAVE_TM_GMTOFF 1
-
-/*
- * Define if dirent struct has d_type field
- */
-#define HAVE_DIRENT_D_TYPE 1
-
-/*
- * Define if we have madvise() in <sys/mman.h>
- */
-#define HAVE_MADVISE 1
-
-/*
- * Define if we include <sys/mount.h> for statfs()
- */
-#define INCLUDE_SYS_MOUNT_FOR_STATFS 1
-
-/*
- * What CPU architecture does this platform use?
- */
-#if (defined(__ppc__) || defined(__ppc64__))
-#   define ARCH_PPC
-#elif (defined(__i386__) || defined(__x86_64__))
-#   define ARCH_X86
-#endif
-
-/*
- * sprintf() format string for shared library naming.
- */
-#define OS_SHARED_LIB_FORMAT_STR    "lib%s.dylib"
-
-/*
- * type for the third argument to mincore().
- */
-#define MINCORE_POINTER_TYPE char *
-
-/*
- * The default path separator for the platform
- */
-#define OS_PATH_SEPARATOR '/'
-
-/*
- * Is the filesystem case sensitive?
- *
- * For tools apps, we'll treat is as not case sensitive.
- */
-/* #define OS_CASE_SENSITIVE */
-
-/*
- * Define if <sys/socket.h> exists.
- */
-#define HAVE_SYS_SOCKET_H 1
-
-/*
- * Define if the strlcpy() function exists on the system.
- */
-#define HAVE_STRLCPY 1
-
-/*
- * Define if the open_memstream() function exists on the system.
- */
-/* #define HAVE_OPEN_MEMSTREAM 1 */
-
-/*
- * Define if the BSD funopen() function exists on the system.
- */
-#define HAVE_FUNOPEN 1
-
-/*
- * Define if writev() exists
- */
-#define HAVE_WRITEV 1
-
-/*
- * Define if <stdint.h> exists.
- */
-#define HAVE_STDINT_H 1
-
-/*
- * Define if <stdbool.h> exists.
- */
-#define HAVE_STDBOOL_H 1
-
-/*
- * Define if <sched.h> exists.
- */
-#define HAVE_SCHED_H 1
-
-/*
- * Define if pread() exists
- */
-#define HAVE_PREAD 1
-
-/*
- * Define if we have st_mtim in struct stat
- */
-#define HAVE_STAT_ST_MTIM 1
-
-/*
- * Define if printf() supports %zd for size_t arguments
- */
-#define HAVE_PRINTF_ZD 1
-
-/*
- * Define to 1 if <stdlib.h> provides qsort_r() with a BSD style function prototype.
- */
-#define HAVE_BSD_QSORT_R 1
-
-/*
- * Define to 1 if <stdlib.h> provides qsort_r() with a GNU style function prototype.
- */
-#define HAVE_GNU_QSORT_R 0
-
-#endif /*_ANDROID_CONFIG_H*/
diff --git a/include/arch/freebsd-x86/AndroidConfig.h b/include/arch/freebsd-x86/AndroidConfig.h
deleted file mode 100644
index 4bc5559..0000000
--- a/include/arch/freebsd-x86/AndroidConfig.h
+++ /dev/null
@@ -1,376 +0,0 @@
-/*
- * Copyright (C) 2005 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-/*
- * Android config -- "FreeBSD".  Used for desktop x86 FreeBSD.
- */
-#ifndef _ANDROID_CONFIG_H
-#define _ANDROID_CONFIG_H
-
-/*
- * make sure we are building for FreeBSD
- */
-#ifndef OS_FREEBSD
-#define OS_FREEBSD
-#endif
-/*
- * ===========================================================================
- *                              !!! IMPORTANT !!!
- * ===========================================================================
- *
- * This file is included by ALL C/C++ source files.  Don't put anything in
- * here unless you are absolutely certain it can't go anywhere else.
- *
- * Any C++ stuff must be wrapped with "#ifdef __cplusplus".  Do not use "//"
- * comments.
- */
-
-/*
- * Threading model.  Choose one:
- *
- * HAVE_PTHREADS - use the pthreads library.
- * HAVE_WIN32_THREADS - use Win32 thread primitives.
- *  -- combine HAVE_CREATETHREAD, HAVE_CREATEMUTEX, and HAVE__BEGINTHREADEX
- */
-#define HAVE_PTHREADS
-
-/*
- * Do we have the futex syscall?
- */
-/* #define HAVE_FUTEX */
-
-/*
- * Process creation model.  Choose one:
- *
- * HAVE_FORKEXEC - use fork() and exec()
- * HAVE_WIN32_PROC - use CreateProcess()
- */
-#define HAVE_FORKEXEC
-
-/*
- * Process out-of-memory adjustment.  Set if running on Linux,
- * where we can write to /proc/<pid>/oom_adj to modify the out-of-memory
- * badness adjustment.
- */
-/* #define HAVE_OOM_ADJ */
-
-/*
- * IPC model.  Choose one:
- *
- * HAVE_SYSV_IPC - use the classic SysV IPC mechanisms (semget, shmget).
- * HAVE_MACOSX_IPC - use Macintosh IPC mechanisms (sem_open, mmap).
- * HAVE_WIN32_IPC - use Win32 IPC (CreateSemaphore, CreateFileMapping).
- * HAVE_ANDROID_IPC - use Android versions (?, mmap).
- */
-#define HAVE_SYSV_IPC
-
-/*
- * Memory-mapping model. Choose one:
- *
- * HAVE_POSIX_FILEMAP - use the Posix sys/mmap.h
- * HAVE_WIN32_FILEMAP - use Win32 filemaps
- */
-#define  HAVE_POSIX_FILEMAP
-
-/*
- * Define this if you have <termio.h>
- */
-/* #define  HAVE_TERMIO_H */
-
-/*
- * Define this if you have <sys/sendfile.h>
- */
-/* #define  HAVE_SYS_SENDFILE_H 1 */
-
-/*
- * Define this if you build against MSVCRT.DLL
- */
-/* #define HAVE_MS_C_RUNTIME */
-
-/*
- * Define this if you have sys/uio.h
- */
-#define  HAVE_SYS_UIO_H
-
-/*
- * Define this if your platforms implements symbolic links
- * in its filesystems
- */
-#define HAVE_SYMLINKS
-
-/*
- * Define this if we have localtime_r().
- */
-#define HAVE_LOCALTIME_R 1
-
-/*
- * Define this if we have gethostbyname_r().
- */
-/* #define HAVE_GETHOSTBYNAME_R */
-
-/*
- * Define this if we have ioctl().
- */
-#define HAVE_IOCTL
-
-/*
- * Define this if we want to use WinSock.
- */
-/* #define HAVE_WINSOCK */
-
-/*
- * Define this if have clock_gettime() and friends
- *
- * Desktop Linux has this in librt, but it's broken in goobuntu, yielding
- * mildly or wildly inaccurate results.
- */
-#define HAVE_POSIX_CLOCKS
-
-/*
- * Define this if we have pthread_cond_timedwait_monotonic() and
- * clock_gettime(CLOCK_MONOTONIC).
- */
-/* #define HAVE_TIMEDWAIT_MONOTONIC */
-
-/*
- * Define this if we have linux style epoll()
- */
-/* #define HAVE_EPOLL */
-
-/*
- * Endianness of the target machine.  Choose one:
- *
- * HAVE_ENDIAN_H -- have endian.h header we can include.
- * HAVE_LITTLE_ENDIAN -- we are little endian.
- * HAVE_BIG_ENDIAN -- we are big endian.
- */
-/* #define HAVE_ENDIAN_H */
-#define HAVE_LITTLE_ENDIAN
-
-/*
- * Define this if you have sys/endian.h
- * NOTE: mutually exclusive with HAVE_ENDIAN_H
- */
-#define HAVE_SYS_ENDIAN_H
-
-/*
- * We need to choose between 32-bit and 64-bit off_t.  All of our code should
- * agree on the same size.  For desktop systems, use 64-bit values,
- * because some of our libraries (e.g. wxWidgets) expect to be built that way.
- */
-#define _FILE_OFFSET_BITS 64
-#define _LARGEFILE_SOURCE 1
-
-/*
- * Define if platform has off64_t (and lseek64 and other xxx64 functions)
- */
-/* #define HAVE_OFF64_T */
-
-/*
- * Defined if we have the backtrace() call for retrieving a stack trace.
- * Needed for CallStack to operate; if not defined, CallStack is
- * non-functional.
- */
-#define HAVE_BACKTRACE 0
-
-/*
- * Defined if we have the dladdr() call for retrieving the symbol associated
- * with a memory address.  If not defined, stack crawls will not have symbolic
- * information.
- */
-#define HAVE_DLADDR 1
-
-/*
- * Defined if we have the cxxabi.h header for demangling C++ symbols.  If
- * not defined, stack crawls will be displayed with raw mangled symbols
- */
-#define HAVE_CXXABI 0
-
-/*
- * Defined if we have the gettid() system call.
- */
-/* #define HAVE_GETTID */
-
-/* 
- * Defined if we have the sched_setscheduler() call
- */
-#define HAVE_SCHED_SETSCHEDULER
-
-/*
- * Add any extra platform-specific defines here.
- */
-
-/*
- * Define if we have <malloc.h> header
- */
-#define HAVE_MALLOC_H
-
-/*
- * Define if we have Linux-style non-filesystem Unix Domain Sockets
- */
-
-/*
- * What CPU architecture does this platform use?
- */
-#define ARCH_X86
-
-
-/*
- * Define if we have Linux's inotify in <sys/inotify.h>.
- */
-/*#define HAVE_INOTIFY 1*/
-
-/*
- * Define if we have madvise() in <sys/mman.h>
- */
-#define HAVE_MADVISE 1
-
-/*
- * Define if tm struct has tm_gmtoff field
- */
-#define HAVE_TM_GMTOFF 1
-
-/*
- * Define if dirent struct has d_type field
- */
-#define HAVE_DIRENT_D_TYPE 1
-
-/*
- * Define if libc includes Android system properties implementation.
- */
-/* #define HAVE_LIBC_SYSTEM_PROPERTIES */
-
-/*
- * Define if system provides a system property server (should be
- * mutually exclusive with HAVE_LIBC_SYSTEM_PROPERTIES).
- */
-#define HAVE_SYSTEM_PROPERTY_SERVER
-
-/*
- * sprintf() format string for shared library naming.
- */
-#define OS_SHARED_LIB_FORMAT_STR    "lib%s.so"
-
-/*
- * type for the third argument to mincore().
- */
-#define MINCORE_POINTER_TYPE char *
-
-/*
- * Do we have the sigaction flag SA_NOCLDWAIT?
- */
-#define HAVE_SA_NOCLDWAIT
-
-/*
- * Define if we include <sys/mount.h> for statfs()
- */
-#define INCLUDE_SYS_MOUNT_FOR_STATFS 1
-  
-/*
- * The default path separator for the platform
- */
-#define OS_PATH_SEPARATOR '/'
-
-/*
- * Is the filesystem case sensitive?
- */
-#define OS_CASE_SENSITIVE
-
-/*
- * Define if <sys/socket.h> exists.
- */
-#define HAVE_SYS_SOCKET_H 1
-
-/*
- * Define if the strlcpy() function exists on the system.
- */
-#define HAVE_STRLCPY 1
-
-/*
- * Define if the open_memstream() function exists on the system.
- */
-/* #define HAVE_OPEN_MEMSTREAM 1 */
-
-/*
- * Define if the BSD funopen() function exists on the system.
- */
-#define HAVE_FUNOPEN 1
-
-/*
- * Define if prctl() exists
- */
-/* #define HAVE_PRCTL 1 */
-
-/*
- * Define if writev() exists
- */
-#define HAVE_WRITEV 1
-
-/*
- * Define if <alloca.h> does not exist
- * NOTE: <alloca.h> defines alloca() which
- *   on FreeBSD is defined in <stdlib.h>
- */
-#define HAVE_NO_ALLOCA_H
-
-/*
- * Defines CLOCK_PROCESS_CPUTIME_ID for clock_gettime()
- * XXX: CLOCK_PROF seems to be commonly used replacement
- */
-#ifndef  CLOCK_PROCESS_CPUTIME_ID
-#define CLOCK_PROCESS_CPUTIME_ID CLOCK_PROF
-#endif
-
-/*
- * Define if <stdint.h> exists.
- */
-/* #define HAVE_STDINT_H */
-
-/*
- * Define if <stdbool.h> exists.
- */
-/* #define HAVE_STDBOOL_H */
-
-/*
- * Define if <sched.h> exists.
- */
-#define HAVE_SCHED_H 1
-
-/*
- * Define if pread() exists
- */
-#define HAVE_PREAD 1
-/*
- * Define if we have st_mtim in struct stat
- */
-#define HAVE_STAT_ST_MTIM 1
-
-/*
- * Define if printf() supports %zd for size_t arguments
- */
-#define HAVE_PRINTF_ZD 1
-
-/*
- * Define to 1 if <stdlib.h> provides qsort_r() with a BSD style function prototype.
- */
-#define HAVE_BSD_QSORT_R 1
-
-/*
- * Define to 1 if <stdlib.h> provides qsort_r() with a GNU style function prototype.
- */
-#define HAVE_GNU_QSORT_R 0
-
-#endif /*_ANDROID_CONFIG_H*/
diff --git a/include/arch/linux-arm/AndroidConfig.h b/include/arch/linux-arm/AndroidConfig.h
deleted file mode 100644
index 233752b..0000000
--- a/include/arch/linux-arm/AndroidConfig.h
+++ /dev/null
@@ -1,374 +0,0 @@
-/*
- * Copyright (C) 2005 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-/*
- * Android config -- "android-arm".  Used for ARM device builds.
- */
-#ifndef _ANDROID_CONFIG_H
-#define _ANDROID_CONFIG_H
-
-/*
- * ===========================================================================
- *                              !!! IMPORTANT !!!
- * ===========================================================================
- *
- * This file is included by ALL C/C++ source files.  Don't put anything in
- * here unless you are absolutely certain it can't go anywhere else.
- *
- * Any C++ stuff must be wrapped with "#ifdef __cplusplus".  Do not use "//"
- * comments.
- */
-
-/*
- * Threading model.  Choose one:
- *
- * HAVE_PTHREADS - use the pthreads library.
- * HAVE_WIN32_THREADS - use Win32 thread primitives.
- *  -- combine HAVE_CREATETHREAD, HAVE_CREATEMUTEX, and HAVE__BEGINTHREADEX
- */
-#define HAVE_PTHREADS
-
-/*
- * Do we have pthread_setname_np()?
- *
- * (HAVE_PTHREAD_SETNAME_NP is used by WebKit to enable a function with
- * the same name but different parameters, so we can't use that here.)
- */
-#define HAVE_ANDROID_PTHREAD_SETNAME_NP
-
-/*
- * Do we have the futex syscall?
- */
-#define HAVE_FUTEX
-
-/*
- * Define if we already have the futex wrapper functions defined. Yes if
- * compiling against bionic.
- */
-#define HAVE_FUTEX_WRAPPERS 1
-
-/*
- * Process creation model.  Choose one:
- *
- * HAVE_FORKEXEC - use fork() and exec()
- * HAVE_WIN32_PROC - use CreateProcess()
- */
-#define HAVE_FORKEXEC
-
-/*
- * Process out-of-memory adjustment.  Set if running on Linux,
- * where we can write to /proc/<pid>/oom_adj to modify the out-of-memory
- * badness adjustment.
- */
-#define HAVE_OOM_ADJ
-
-/*
- * IPC model.  Choose one:
- *
- * HAVE_SYSV_IPC - use the classic SysV IPC mechanisms (semget, shmget).
- * HAVE_MACOSX_IPC - use Macintosh IPC mechanisms (sem_open, mmap).
- * HAVE_WIN32_IPC - use Win32 IPC (CreateSemaphore, CreateFileMapping).
- * HAVE_ANDROID_IPC - use Android versions (?, mmap).
- */
-#define HAVE_ANDROID_IPC
-
-/*
- * Memory-mapping model. Choose one:
- *
- * HAVE_POSIX_FILEMAP - use the Posix sys/mmap.h
- * HAVE_WIN32_FILEMAP - use Win32 filemaps
- */
-#define  HAVE_POSIX_FILEMAP
-
-/*
- * Define this if you have <termio.h>
- */
-#define  HAVE_TERMIO_H 1
-
-/*
- * Define this if you have <sys/sendfile.h>
- */
-#define  HAVE_SYS_SENDFILE_H 1
-
-/*
- * Define this if you build against MSVCRT.DLL
- */
-/* #define HAVE_MS_C_RUNTIME */
-
-/*
- * Define this if you have sys/uio.h
- */
-#define  HAVE_SYS_UIO_H 1
-
-/*
- * Define this if your platforms implements symbolic links
- * in its filesystems
- */
-#define HAVE_SYMLINKS
-
-/*
- * Define this if we have localtime_r().
- */
-/* #define HAVE_LOCALTIME_R 1 */
-
-/*
- * Define this if we have gethostbyname_r().
- */
-/* #define HAVE_GETHOSTBYNAME_R */
-
-/*
- * Define this if we have ioctl().
- */
-#define HAVE_IOCTL
-
-/*
- * Define this if we want to use WinSock.
- */
-/* #define HAVE_WINSOCK */
-
-/*
- * Define this if have clock_gettime() and friends
- */
-#define HAVE_POSIX_CLOCKS
-
-/*
- * Define this if we have pthread_cond_timedwait_monotonic() and
- * clock_gettime(CLOCK_MONOTONIC).
- */
-#define HAVE_TIMEDWAIT_MONOTONIC
-
-/*
- * Define this if we have linux style epoll()
- */
-#define HAVE_EPOLL
-
-/*
- * Endianness of the target machine.  Choose one:
- *
- * HAVE_ENDIAN_H -- have endian.h header we can include.
- * HAVE_LITTLE_ENDIAN -- we are little endian.
- * HAVE_BIG_ENDIAN -- we are big endian.
- */
-#define HAVE_ENDIAN_H
-#define HAVE_LITTLE_ENDIAN
-
-/*
- * We need to choose between 32-bit and 64-bit off_t.  All of our code should
- * agree on the same size.  For desktop systems, use 64-bit values,
- * because some of our libraries (e.g. wxWidgets) expect to be built that way.
- */
-/* #define _FILE_OFFSET_BITS 64 */
-/* #define _LARGEFILE_SOURCE 1 */
-
-/*
- * Define if platform has off64_t (and lseek64 and other xxx64 functions)
- */
-#define HAVE_OFF64_T
-
-/*
- * Defined if we have the backtrace() call for retrieving a stack trace.
- * Needed for CallStack to operate; if not defined, CallStack is
- * non-functional.
- */
-#define HAVE_BACKTRACE 0
-
-/*
- * Defined if we have the dladdr() call for retrieving the symbol associated
- * with a memory address.  If not defined, stack crawls will not have symbolic
- * information.
- */
-#define HAVE_DLADDR 1
-
-/*
- * Defined if we have the cxxabi.h header for demangling C++ symbols.  If
- * not defined, stack crawls will be displayed with raw mangled symbols
- */
-#define HAVE_CXXABI 0
-
-/*
- * Defined if we have the gettid() system call.
- */
-#define HAVE_GETTID
-
-/* 
- * Defined if we have the sched_setscheduler() call
- */
-#define HAVE_SCHED_SETSCHEDULER
-
-/*
- * Add any extra platform-specific defines here.
- */
-#ifndef __linux__
-#define __linux__
-#endif
-
-/*
- * Define if we have <malloc.h> header
- */
-#define HAVE_MALLOC_H
-
-/* 
- * Define if we're running on *our* linux on device or emulator.
- */
-#define HAVE_ANDROID_OS 1
-
-/*
- * Define if we have Linux-style non-filesystem Unix Domain Sockets
- */
-#define HAVE_LINUX_LOCAL_SOCKET_NAMESPACE 1
-
-/*
- * Define if we have Linux's inotify in <sys/inotify.h>.
- */
-#define HAVE_INOTIFY 1
-
-/*
- * Define if we have madvise() in <sys/mman.h>
- */
-#define HAVE_MADVISE 1
-
-/*
- * Define if tm struct has tm_gmtoff field
- */
-#define HAVE_TM_GMTOFF 1
-
-/*
- * Define if dirent struct has d_type field
- */
-#define HAVE_DIRENT_D_TYPE 1
-
-/*
- * Define if libc includes Android system properties implementation.
- */
-#define HAVE_LIBC_SYSTEM_PROPERTIES 1
-
-/*
- * Define if system provides a system property server (should be
- * mutually exclusive with HAVE_LIBC_SYSTEM_PROPERTIES).
- */
-/* #define HAVE_SYSTEM_PROPERTY_SERVER */
-
-/*
- * What CPU architecture does this platform use?
- */
-#define ARCH_ARM
-
-/*
- * Define if the size of enums is as short as possible,
- */
-/* #define HAVE_SHORT_ENUMS */
-
-/*
- * sprintf() format string for shared library naming.
- */
-#define OS_SHARED_LIB_FORMAT_STR    "lib%s.so"
-
-/*
- * Do we have __memcmp16()?
- */
-#define HAVE__MEMCMP16  1
-
-/*
- * type for the third argument to mincore().
- */
-#define MINCORE_POINTER_TYPE unsigned char *
-
-/*
- * Do we have the sigaction flag SA_NOCLDWAIT?
- */
-#define HAVE_SA_NOCLDWAIT
-
-/*
- * The default path separator for the platform
- */
-#define OS_PATH_SEPARATOR '/'
-
-/*
- * Is the filesystem case sensitive?
- */
-#define OS_CASE_SENSITIVE
-
-/*
- * Define if <sys/socket.h> exists.
- */
-#define HAVE_SYS_SOCKET_H 1
-
-/*
- * Define if the strlcpy() function exists on the system.
- */
-#define HAVE_STRLCPY 1
-
-/*
- * Define if the open_memstream() function exists on the system.
- */
-/* #define HAVE_OPEN_MEMSTREAM 1 */
-
-/*
- * Define if the BSD funopen() function exists on the system.
- */
-#define HAVE_FUNOPEN 1
-
-/*
- * Define if prctl() exists
- */
-#define HAVE_PRCTL 1
-
-/*
- * Define if writev() exists
- */
-#define HAVE_WRITEV 1
-
-/*
- * Define if <stdint.h> exists.
- */
-#define HAVE_STDINT_H 1
-
-/*
- * Define if <stdbool.h> exists.
- */
-#define HAVE_STDBOOL_H 1
-
-/*
- * Define if <sched.h> exists.
- */
-#define HAVE_SCHED_H 1
-
-/*
- * Define if pread() exists
- */
-#define HAVE_PREAD 1
-
-/*
- * Define if we have st_mtim in struct stat
- */
-#define HAVE_STAT_ST_MTIM 1
-
-/*
- * Define if printf() supports %zd for size_t arguments
- */
-#define HAVE_PRINTF_ZD 1
-
-/*
- * Define to 1 if <stdlib.h> provides qsort_r() with a BSD style function prototype.
- */
-#define HAVE_BSD_QSORT_R 0
-
-/*
- * Define to 1 if <stdlib.h> provides qsort_r() with a GNU style function prototype.
- */
-#define HAVE_GNU_QSORT_R 0
-
-#endif /* _ANDROID_CONFIG_H */
diff --git a/include/arch/linux-mips/AndroidConfig.h b/include/arch/linux-mips/AndroidConfig.h
deleted file mode 100644
index 2d51dc7..0000000
--- a/include/arch/linux-mips/AndroidConfig.h
+++ /dev/null
@@ -1,386 +0,0 @@
-/*
- * Copyright (C) 2010 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-/*
- * Android config -- "android-mips".  Used for MIPS device builds.
- */
-#ifndef _ANDROID_CONFIG_H
-#define _ANDROID_CONFIG_H
-
-/*
- * ===========================================================================
- *                              !!! IMPORTANT !!!
- * ===========================================================================
- *
- * This file is included by ALL C/C++ source files.  Don't put anything in
- * here unless you are absolutely certain it can't go anywhere else.
- *
- * Any C++ stuff must be wrapped with "#ifdef __cplusplus".  Do not use "//"
- * comments.
- */
-
-/*
- * Threading model.  Choose one:
- *
- * HAVE_PTHREADS - use the pthreads library.
- * HAVE_WIN32_THREADS - use Win32 thread primitives.
- *  -- combine HAVE_CREATETHREAD, HAVE_CREATEMUTEX, and HAVE__BEGINTHREADEX
- */
-#define HAVE_PTHREADS
-
-/*
- * Do we have pthread_setname_np()?
- *
- * (HAVE_PTHREAD_SETNAME_NP is used by WebKit to enable a function with
- * the same name but different parameters, so we can't use that here.)
- */
-#define HAVE_ANDROID_PTHREAD_SETNAME_NP
-
-/*
- * Do we have the futex syscall?
- */
-#define HAVE_FUTEX
-
-/*
- * Define if we already have the futex wrapper functions defined. Yes if
- * compiling against bionic.
- */
-#define HAVE_FUTEX_WRAPPERS 1
-
-/*
- * Process creation model.  Choose one:
- *
- * HAVE_FORKEXEC - use fork() and exec()
- * HAVE_WIN32_PROC - use CreateProcess()
- */
-#define HAVE_FORKEXEC
-
-/*
- * Process out-of-memory adjustment.  Set if running on Linux,
- * where we can write to /proc/<pid>/oom_adj to modify the out-of-memory
- * badness adjustment.
- */
-#define HAVE_OOM_ADJ
-
-/*
- * IPC model.  Choose one:
- *
- * HAVE_SYSV_IPC - use the classic SysV IPC mechanisms (semget, shmget).
- * HAVE_MACOSX_IPC - use Macintosh IPC mechanisms (sem_open, mmap).
- * HAVE_WIN32_IPC - use Win32 IPC (CreateSemaphore, CreateFileMapping).
- * HAVE_ANDROID_IPC - use Android versions (?, mmap).
- */
-#define HAVE_ANDROID_IPC
-
-/*
- * Memory-mapping model. Choose one:
- *
- * HAVE_POSIX_FILEMAP - use the Posix sys/mmap.h
- * HAVE_WIN32_FILEMAP - use Win32 filemaps
- */
-#define  HAVE_POSIX_FILEMAP
-
-/*
- * Define this if you have <termio.h>
- */
-#define  HAVE_TERMIO_H 1
-
-/*
- * Define this if you have <sys/sendfile.h>
- */
-#define  HAVE_SYS_SENDFILE_H 1
-
-/*
- * Define this if you build against MSVCRT.DLL
- */
-/* #define HAVE_MS_C_RUNTIME */
-
-/*
- * Define this if you have sys/uio.h
- */
-#define  HAVE_SYS_UIO_H 1
-
-/*
- * Define this if your platforms implements symbolic links
- * in its filesystems
- */
-#define HAVE_SYMLINKS
-
-/*
- * Define this if we have localtime_r().
- */
-/* #define HAVE_LOCALTIME_R */
-
-/*
- * Define this if we have gethostbyname_r().
- */
-/* #define HAVE_GETHOSTBYNAME_R */
-
-/*
- * Define this if we have ioctl().
- */
-#define HAVE_IOCTL
-
-/*
- * Define this if we want to use WinSock.
- */
-/* #define HAVE_WINSOCK */
-
-/*
- * Define this if have clock_gettime() and friends
- */
-#define HAVE_POSIX_CLOCKS
-
-/*
- * Define this if we have pthread_cond_timedwait_monotonic() and
- * clock_gettime(CLOCK_MONOTONIC).
- */
-#define HAVE_TIMEDWAIT_MONOTONIC
-
-/*
- * Define this if we have linux style epoll()
- */
-#define HAVE_EPOLL
-
-/*
- * Endianness of the target machine.  Choose one:
- *
- * HAVE_ENDIAN_H -- have endian.h header we can include.
- * HAVE_LITTLE_ENDIAN -- we are little endian.
- * HAVE_BIG_ENDIAN -- we are big endian.
- */
-#define HAVE_ENDIAN_H
-#if defined(__MIPSEB__)
-#define HAVE_BIG_ENDIAN
-#endif
-#if defined(__MIPSEL__)
-#define HAVE_LITTLE_ENDIAN
-#endif
-
-/*
- * We need to choose between 32-bit and 64-bit off_t.  All of our code should
- * agree on the same size.  For desktop systems, use 64-bit values,
- * because some of our libraries (e.g. wxWidgets) expect to be built that way.
- */
-/* #define _FILE_OFFSET_BITS 64 */
-/* #define _LARGEFILE_SOURCE 1 */
-
-/*
- * Define if platform has off64_t (and lseek64 and other xxx64 functions)
- */
-#define HAVE_OFF64_T
-
-/*
- * Defined if we have the backtrace() call for retrieving a stack trace.
- * Needed for CallStack to operate; if not defined, CallStack is
- * non-functional.
- */
-#define HAVE_BACKTRACE 0
-
-/*
- * Defined if we have the dladdr() call for retrieving the symbol associated
- * with a memory address.  If not defined, stack crawls will not have symbolic
- * information.
- */
-#define HAVE_DLADDR 1
-
-/*
- * Defined if we have the cxxabi.h header for demangling C++ symbols.  If
- * not defined, stack crawls will be displayed with raw mangled symbols
- */
-#define HAVE_CXXABI 0
-
-/*
- * Defined if we have the gettid() system call.
- */
-#define HAVE_GETTID
-
-/*
- * Defined if we have the sched_setscheduler() call
- */
-#define HAVE_SCHED_SETSCHEDULER
-
-/*
- * Add any extra platform-specific defines here.
- */
-#ifndef __linux__
-#define __linux__ 1
-#endif
-
-#ifndef __linux
-#define __linux 1
-#endif
-
-#ifdef __unix__
-#undef __unix__
-#endif
-
-#ifdef __unix
-#undef __unix
-#endif
-
-/*
- * Define if we have <malloc.h> header
- */
-#define HAVE_MALLOC_H
-
-/*
- * Define if we're running on *our* linux on device or emulator.
- */
-#define HAVE_ANDROID_OS 1
-
-/*
- * Define if we have Linux-style non-filesystem Unix Domain Sockets
- */
-#define HAVE_LINUX_LOCAL_SOCKET_NAMESPACE 1
-
-/*
- * Define if we have Linux's inotify in <sys/inotify.h>.
- */
-#define HAVE_INOTIFY 1
-
-/*
- * Define if we have madvise() in <sys/mman.h>
- */
-#define HAVE_MADVISE 1
-
-/*
- * Define if tm struct has tm_gmtoff field
- */
-#define HAVE_TM_GMTOFF 1
-
-/*
- * Define if dirent struct has d_type field
- */
-#define HAVE_DIRENT_D_TYPE 1
-
-/*
- * Define if libc includes Android system properties implementation.
- */
-#define HAVE_LIBC_SYSTEM_PROPERTIES 1
-
-/*
- * Define if system provides a system property server (should be
- * mutually exclusive with HAVE_LIBC_SYSTEM_PROPERTIES).
- */
-/* #define HAVE_SYSTEM_PROPERTY_SERVER */
-
-/*
- * What CPU architecture does this platform use?
- */
-#define ARCH_MIPS 1
-
-/*
- * Define if the size of enums is as short as possible,
- */
-/* #define HAVE_SHORT_ENUMS */
-
-/*
- * sprintf() format string for shared library naming.
- */
-#define OS_SHARED_LIB_FORMAT_STR    "lib%s.so"
-
-/*
- * Do we have __memcmp16()?
- */
-#define HAVE__MEMCMP16  1
-
-/*
- * type for the third argument to mincore().
- */
-#define MINCORE_POINTER_TYPE unsigned char *
-
-/*
- * Do we have the sigaction flag SA_NOCLDWAIT?
- */
-#define HAVE_SA_NOCLDWAIT
-
-/*
- * The default path separator for the platform
- */
-#define OS_PATH_SEPARATOR '/'
-
-/*
- * Is the filesystem case sensitive?
- */
-#define OS_CASE_SENSITIVE
-
-/*
- * Define if <sys/socket.h> exists.
- */
-#define HAVE_SYS_SOCKET_H 1
-
-/*
- * Define if the strlcpy() function exists on the system.
- */
-#define HAVE_STRLCPY 1
-
-/*
- * Define if the open_memstream() function exists on the system.
- */
-/* #define HAVE_OPEN_MEMSTREAM 1 */
-
-/*
- * Define if the BSD funopen() function exists on the system.
- */
-#define HAVE_FUNOPEN 1
-
-/*
- * Define if prctl() exists
- */
-#define HAVE_PRCTL 1
-
-/*
- * Define if writev() exists
- */
-#define HAVE_WRITEV 1
-
-/*
- * Define if <stdint.h> exists.
- */
-#define HAVE_STDINT_H 1
-
-/*
- * Define if <stdbool.h> exists.
- */
-#define HAVE_STDBOOL_H 1
-
-/*
- * Define if <sched.h> exists.
- */
-#define HAVE_SCHED_H 1
-
-/*
- * Define if pread() exists
- */
-#define HAVE_PREAD 1
-
-/*
- * Define if we have st_mtim in struct stat
- */
-#define HAVE_STAT_ST_MTIM 1
-
-/*
- * Define if printf() supports %zd for size_t arguments
- */
-#define HAVE_PRINTF_ZD 1
-
-/*
- * Whether or not _Unwind_Context is defined as a struct.
- */
-#define HAVE_UNWIND_CONTEXT_STRUCT 1
-
-#endif /* _ANDROID_CONFIG_H */
diff --git a/include/arch/linux-ppc/AndroidConfig.h b/include/arch/linux-ppc/AndroidConfig.h
deleted file mode 100644
index ae2569b..0000000
--- a/include/arch/linux-ppc/AndroidConfig.h
+++ /dev/null
@@ -1,336 +0,0 @@
-/*
- * Copyright (C) 2010 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-/*
- * Android config -- "Linux".  Used for desktop ppc Linux.
- */
-#ifndef _ANDROID_CONFIG_H
-#define _ANDROID_CONFIG_H
-
-/*
- * ===========================================================================
- *                              !!! IMPORTANT !!!
- * ===========================================================================
- *
- * This file is included by ALL C/C++ source files.  Don't put anything in
- * here unless you are absolutely certain it can't go anywhere else.
- *
- * Any C++ stuff must be wrapped with "#ifdef __cplusplus".  Do not use "//"
- * comments.
- */
-
-/*
- * Threading model.  Choose one:
- *
- * HAVE_PTHREADS - use the pthreads library.
- * HAVE_WIN32_THREADS - use Win32 thread primitives.
- *  -- combine HAVE_CREATETHREAD, HAVE_CREATEMUTEX, and HAVE__BEGINTHREADEX
- */
-#define HAVE_PTHREADS
-
-/*
- * Do we have the futex syscall?
- */
-
-#define HAVE_FUTEX
-
-/*
- * Process creation model.  Choose one:
- *
- * HAVE_FORKEXEC - use fork() and exec()
- * HAVE_WIN32_PROC - use CreateProcess()
- */
-#define HAVE_FORKEXEC
-
-/*
- * Process out-of-memory adjustment.  Set if running on Linux,
- * where we can write to /proc/<pid>/oom_adj to modify the out-of-memory
- * badness adjustment.
- */
-#define HAVE_OOM_ADJ
-
-/*
- * IPC model.  Choose one:
- *
- * HAVE_SYSV_IPC - use the classic SysV IPC mechanisms (semget, shmget).
- * HAVE_MACOSX_IPC - use Macintosh IPC mechanisms (sem_open, mmap).
- * HAVE_WIN32_IPC - use Win32 IPC (CreateSemaphore, CreateFileMapping).
- * HAVE_ANDROID_IPC - use Android versions (?, mmap).
- */
-#define HAVE_SYSV_IPC
-
-/*
- * Memory-mapping model. Choose one:
- *
- * HAVE_POSIX_FILEMAP - use the Posix sys/mmap.h
- * HAVE_WIN32_FILEMAP - use Win32 filemaps
- */
-#define  HAVE_POSIX_FILEMAP
-
-/*
- * Define this if you have <termio.h>
- */
-#define  HAVE_TERMIO_H 1
-
-/*
- * Define this if you have <sys/sendfile.h>
- */
-#define  HAVE_SYS_SENDFILE_H 1
-
-/*
- * Define this if you build against MSVCRT.DLL
- */
-/* #define HAVE_MS_C_RUNTIME */
-
-/*
- * Define this if you have sys/uio.h
- */
-#define  HAVE_SYS_UIO_H 1
-
-/*
- * Define this if your platforms implements symbolic links
- * in its filesystems
- */
-#define HAVE_SYMLINKS
-
-/*
- * Define this if we have localtime_r().
- */
-#define HAVE_LOCALTIME_R 1
-
-/*
- * Define this if we have gethostbyname_r().
- */
-#define HAVE_GETHOSTBYNAME_R
-
-/*
- * Define this if we have ioctl().
- */
-#define HAVE_IOCTL
-
-/*
- * Define this if we want to use WinSock.
- */
-/* #define HAVE_WINSOCK */
-
-/*
- * Define this if have clock_gettime() and friends
- *
- * Desktop Linux has this in librt, but it's broken in goobuntu, yielding
- * mildly or wildly inaccurate results.
- */
-/*#define HAVE_POSIX_CLOCKS*/
-
-/*
- * Define this if we have pthread_cond_timedwait_monotonic() and
- * clock_gettime(CLOCK_MONOTONIC).
- */
-/* #define HAVE_TIMEDWAIT_MONOTONIC */
-
-/*
- * Define this if we have linux style epoll()
- */
-#define HAVE_EPOLL
-
-/*
- * Endianness of the target machine.  Choose one:
- *
- * HAVE_ENDIAN_H -- have endian.h header we can include.
- * HAVE_LITTLE_ENDIAN -- we are little endian.
- * HAVE_BIG_ENDIAN -- we are big endian.
- */
-#define HAVE_ENDIAN_H
-#define HAVE_BIG_ENDIAN
-
-/*
- * We need to choose between 32-bit and 64-bit off_t.  All of our code should
- * agree on the same size.  For desktop systems, use 64-bit values,
- * because some of our libraries (e.g. wxWidgets) expect to be built that way.
- */
-#define _FILE_OFFSET_BITS 64
-#define _LARGEFILE_SOURCE 1
-
-/*
- * Define if platform has off64_t (and lseek64 and other xxx64 functions)
- */
-#define HAVE_OFF64_T
-
-/*
- * Defined if we have the backtrace() call for retrieving a stack trace.
- * Needed for CallStack to operate; if not defined, CallStack is
- * non-functional.
- */
-#define HAVE_BACKTRACE 1
-
-/*
- * Defined if we have the dladdr() call for retrieving the symbol associated
- * with a memory address.  If not defined, stack crawls will not have symbolic
- * information.
- */
-#define HAVE_DLADDR 1
-
-/*
- * Defined if we have the cxxabi.h header for demangling C++ symbols.  If
- * not defined, stack crawls will be displayed with raw mangled symbols
- */
-#define HAVE_CXXABI 0
-
-/*
- * Defined if we have the gettid() system call.
- */
-/* #define HAVE_GETTID */
-
-/*
- * Defined if we have the sched_setscheduler() call
- */
-#define HAVE_SCHED_SETSCHEDULER
-
-/*
- * Add any extra platform-specific defines here.
- */
-
-/*
- * Define if we have <malloc.h> header
- */
-#define HAVE_MALLOC_H
-
-/*
- * Define if we have Linux-style non-filesystem Unix Domain Sockets
- */
-
-/*
- * What CPU architecture does this platform use?
- */
-#define ARCH_PPC
-
-
-/*
- * Define if we have Linux's inotify in <sys/inotify.h>.
- */
-/*#define HAVE_INOTIFY 1*/
-
-/*
- * Define if we have madvise() in <sys/mman.h>
- */
-#define HAVE_MADVISE 1
-
-/*
- * Define if tm struct has tm_gmtoff field
- */
-#define HAVE_TM_GMTOFF 1
-
-/*
- * Define if dirent struct has d_type field
- */
-#define HAVE_DIRENT_D_TYPE 1
-
-/*
- * Define if libc includes Android system properties implementation.
- */
-/* #define HAVE_LIBC_SYSTEM_PROPERTIES */
-
-/*
- * Define if system provides a system property server (should be
- * mutually exclusive with HAVE_LIBC_SYSTEM_PROPERTIES).
- */
-#define HAVE_SYSTEM_PROPERTY_SERVER
-
-/*
- * sprintf() format string for shared library naming.
- */
-#define OS_SHARED_LIB_FORMAT_STR    "lib%s.so"
-
-/*
- * type for the third argument to mincore().
- */
-#define MINCORE_POINTER_TYPE unsigned char *
-
-/*
- * Do we have the sigaction flag SA_NOCLDWAIT?
- */
-#define HAVE_SA_NOCLDWAIT
-
-/*
- * The default path separator for the platform
- */
-#define OS_PATH_SEPARATOR '/'
-
-/*
- * Is the filesystem case sensitive?
- */
-#define OS_CASE_SENSITIVE
-
-/*
- * Define if <sys/socket.h> exists.
- */
-#define HAVE_SYS_SOCKET_H 1
-
-/*
- * Define if the strlcpy() function exists on the system.
- */
-/* #define HAVE_STRLCPY 1 */
-
-/*
- * Define if the open_memstream() function exists on the system.
- */
-#define HAVE_OPEN_MEMSTREAM 1
-
-/*
- * Define if the BSD funopen() function exists on the system.
- */
-/* #define HAVE_FUNOPEN 1 */
-
-/*
- * Define if prctl() exists
- */
-#define HAVE_PRCTL 1
-
-/*
- * Define if writev() exists
- */
-#define HAVE_WRITEV 1
-
-/*
- * Define if <stdint.h> exists.
- */
-#define HAVE_STDINT_H 1
-
-/*
- * Define if <stdbool.h> exists.
- */
-#define HAVE_STDBOOL_H 1
-
-/*
- * Define if <sched.h> exists.
- */
-#define HAVE_SCHED_H 1
-
-/*
- * Define if pread() exists
- */
-#define HAVE_PREAD 1
-
-/*
- * Define to 1 if <stdlib.h> provides qsort_r() with a BSD style function prototype.
- */
-#define HAVE_BSD_QSORT_R 0
-
-/*
- * Define to 1 if <stdlib.h> provides qsort_r() with a GNU style function prototype.
- */
-#define HAVE_GNU_QSORT_R 1
-
-#endif /*_ANDROID_CONFIG_H*/
diff --git a/include/arch/linux-x86/AndroidConfig.h b/include/arch/linux-x86/AndroidConfig.h
deleted file mode 100644
index 431a54b..0000000
--- a/include/arch/linux-x86/AndroidConfig.h
+++ /dev/null
@@ -1,350 +0,0 @@
-/*
- * Copyright (C) 2005 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-/*
- * Android config -- "Linux".  Used for desktop x86 Linux.
- */
-#ifndef _ANDROID_CONFIG_H
-#define _ANDROID_CONFIG_H
-
-/*
- * ===========================================================================
- *                              !!! IMPORTANT !!!
- * ===========================================================================
- *
- * This file is included by ALL C/C++ source files.  Don't put anything in
- * here unless you are absolutely certain it can't go anywhere else.
- *
- * Any C++ stuff must be wrapped with "#ifdef __cplusplus".  Do not use "//"
- * comments.
- */
-
-/*
- * Threading model.  Choose one:
- *
- * HAVE_PTHREADS - use the pthreads library.
- * HAVE_WIN32_THREADS - use Win32 thread primitives.
- *  -- combine HAVE_CREATETHREAD, HAVE_CREATEMUTEX, and HAVE__BEGINTHREADEX
- */
-#define HAVE_PTHREADS
-
-/*
- * Do we have the futex syscall?
- */
-
-#define HAVE_FUTEX
-
-/*
- * Process creation model.  Choose one:
- *
- * HAVE_FORKEXEC - use fork() and exec()
- * HAVE_WIN32_PROC - use CreateProcess()
- */
-#define HAVE_FORKEXEC
-
-/*
- * Process out-of-memory adjustment.  Set if running on Linux,
- * where we can write to /proc/<pid>/oom_adj to modify the out-of-memory
- * badness adjustment.
- */
-#define HAVE_OOM_ADJ
-
-/*
- * IPC model.  Choose one:
- *
- * HAVE_SYSV_IPC - use the classic SysV IPC mechanisms (semget, shmget).
- * HAVE_MACOSX_IPC - use Macintosh IPC mechanisms (sem_open, mmap).
- * HAVE_WIN32_IPC - use Win32 IPC (CreateSemaphore, CreateFileMapping).
- * HAVE_ANDROID_IPC - use Android versions (?, mmap).
- */
-#define HAVE_SYSV_IPC
-
-/*
- * Memory-mapping model. Choose one:
- *
- * HAVE_POSIX_FILEMAP - use the Posix sys/mmap.h
- * HAVE_WIN32_FILEMAP - use Win32 filemaps
- */
-#define  HAVE_POSIX_FILEMAP
-
-/*
- * Define this if you have <termio.h>
- */
-#define  HAVE_TERMIO_H 1
-
-/*
- * Define this if you have <sys/sendfile.h>
- */
-#define  HAVE_SYS_SENDFILE_H 1
-
-/*
- * Define this if you build against MSVCRT.DLL
- */
-/* #define HAVE_MS_C_RUNTIME */
-
-/*
- * Define this if you have sys/uio.h
- */
-#define  HAVE_SYS_UIO_H 1
-
-/*
- * Define this if your platforms implements symbolic links
- * in its filesystems
- */
-#define HAVE_SYMLINKS
-
-/*
- * Define this if we have localtime_r().
- */
-#define HAVE_LOCALTIME_R 1
-
-/*
- * Define this if we have gethostbyname_r().
- */
-#define HAVE_GETHOSTBYNAME_R
-
-/*
- * Define this if we have ioctl().
- */
-#define HAVE_IOCTL
-
-/*
- * Define this if we want to use WinSock.
- */
-/* #define HAVE_WINSOCK */
-
-/*
- * Define this if have clock_gettime() and friends
- *
- * Desktop Linux has this in librt, but it's broken in goobuntu, yielding
- * mildly or wildly inaccurate results.
- */
-/*#define HAVE_POSIX_CLOCKS*/
-
-/*
- * Define this if we have pthread_cond_timedwait_monotonic() and
- * clock_gettime(CLOCK_MONOTONIC).
- */
-/* #define HAVE_TIMEDWAIT_MONOTONIC */
-
-/*
- * Define this if we have linux style epoll()
- */
-#define HAVE_EPOLL
-
-/*
- * Endianness of the target machine.  Choose one:
- *
- * HAVE_ENDIAN_H -- have endian.h header we can include.
- * HAVE_LITTLE_ENDIAN -- we are little endian.
- * HAVE_BIG_ENDIAN -- we are big endian.
- */
-#define HAVE_ENDIAN_H
-#define HAVE_LITTLE_ENDIAN
-
-/*
- * We need to choose between 32-bit and 64-bit off_t.  All of our code should
- * agree on the same size.  For desktop systems, use 64-bit values,
- * because some of our libraries (e.g. wxWidgets) expect to be built that way.
- */
-#define _FILE_OFFSET_BITS 64
-#define _LARGEFILE_SOURCE 1
-
-/*
- * Define if platform has off64_t (and lseek64 and other xxx64 functions)
- */
-#define HAVE_OFF64_T
-
-/*
- * Defined if we have the backtrace() call for retrieving a stack trace.
- * Needed for CallStack to operate; if not defined, CallStack is
- * non-functional.
- */
-#define HAVE_BACKTRACE 1
-
-/*
- * Defined if we have the dladdr() call for retrieving the symbol associated
- * with a memory address.  If not defined, stack crawls will not have symbolic
- * information.
- */
-#define HAVE_DLADDR 1
-
-/*
- * Defined if we have the cxxabi.h header for demangling C++ symbols.  If
- * not defined, stack crawls will be displayed with raw mangled symbols
- */
-#define HAVE_CXXABI 0
-
-/*
- * Defined if we have the gettid() system call.
- */
-/* #define HAVE_GETTID */
-
-/* 
- * Defined if we have the sched_setscheduler() call
- */
-#define HAVE_SCHED_SETSCHEDULER
-
-/*
- * Add any extra platform-specific defines here.
- */
-
-/*
- * Define if we have <malloc.h> header
- */
-#define HAVE_MALLOC_H
-
-/*
- * Define if we have Linux-style non-filesystem Unix Domain Sockets
- */
-
-/*
- * What CPU architecture does this platform use?
- */
-#define ARCH_X86
-
-
-/*
- * Define if we have Linux's inotify in <sys/inotify.h>.
- */
-/*#define HAVE_INOTIFY 1*/
-
-/*
- * Define if we have madvise() in <sys/mman.h>
- */
-#define HAVE_MADVISE 1
-
-/*
- * Define if tm struct has tm_gmtoff field
- */
-#define HAVE_TM_GMTOFF 1
-
-/*
- * Define if dirent struct has d_type field
- */
-#define HAVE_DIRENT_D_TYPE 1
-
-/*
- * Define if libc includes Android system properties implementation.
- */
-/* #define HAVE_LIBC_SYSTEM_PROPERTIES */
-
-/*
- * Define if system provides a system property server (should be
- * mutually exclusive with HAVE_LIBC_SYSTEM_PROPERTIES).
- */
-#define HAVE_SYSTEM_PROPERTY_SERVER
-
-/*
- * sprintf() format string for shared library naming.
- */
-#define OS_SHARED_LIB_FORMAT_STR    "lib%s.so"
-
-/*
- * type for the third argument to mincore().
- */
-#define MINCORE_POINTER_TYPE unsigned char *
-
-/*
- * Do we have the sigaction flag SA_NOCLDWAIT?
- */
-#define HAVE_SA_NOCLDWAIT
-
-/*
- * The default path separator for the platform
- */
-#define OS_PATH_SEPARATOR '/'
-
-/*
- * Is the filesystem case sensitive?
- */
-#define OS_CASE_SENSITIVE
-
-/*
- * Define if <sys/socket.h> exists.
- */
-#define HAVE_SYS_SOCKET_H 1
-
-/*
- * Define if the strlcpy() function exists on the system.
- */
-/* #define HAVE_STRLCPY 1 */
-
-/*
- * Define if the open_memstream() function exists on the system.
- */
-#define HAVE_OPEN_MEMSTREAM 1
-
-/*
- * Define if the BSD funopen() function exists on the system.
- */
-/* #define HAVE_FUNOPEN 1 */
-
-/*
- * Define if prctl() exists
- */
-#define HAVE_PRCTL 1
-
-/*
- * Define if writev() exists
- */
-#define HAVE_WRITEV 1
-
-/*
- * Define if <stdint.h> exists.
- */
-#define HAVE_STDINT_H 1
-
-/*
- * Define if <stdbool.h> exists.
- */
-#define HAVE_STDBOOL_H 1
-
-/*
- * Define if <sched.h> exists.
- */
-#define HAVE_SCHED_H 1
-
-/*
- * Define if pread() exists
- */
-#define HAVE_PREAD 1
-
-/*
- * Define if we have st_mtim in struct stat
- */
-#define HAVE_STAT_ST_MTIM 1
-
-/*
- * Define if printf() supports %zd for size_t arguments
- */
-#define HAVE_PRINTF_ZD 1
-
-/*
- * Define to 1 if <stdlib.h> provides qsort_r() with a BSD style function prototype.
- */
-#define HAVE_BSD_QSORT_R 0
-
-/*
- * Define to 1 if <stdlib.h> provides qsort_r() with a GNU style function prototype.
- */
-#if __GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 8)
-#define HAVE_GNU_QSORT_R 1
-#else
-#define HAVE_GNU_QSORT_R 0
-#endif
-
-#endif /*_ANDROID_CONFIG_H*/
diff --git a/include/arch/target_linux-x86/AndroidConfig.h b/include/arch/target_linux-x86/AndroidConfig.h
deleted file mode 100644
index ab53892..0000000
--- a/include/arch/target_linux-x86/AndroidConfig.h
+++ /dev/null
@@ -1,363 +0,0 @@
-/*
- * Copyright 2005 The Android Open Source Project
- *
- * Android config -- "target_linux-x86".  Used for x86 linux target devices.
- */
-#ifndef _ANDROID_CONFIG_H
-#define _ANDROID_CONFIG_H
-
-/*
- * ===========================================================================
- *                              !!! IMPORTANT !!!
- * ===========================================================================
- *
- * This file is included by ALL C/C++ source files.  Don't put anything in
- * here unless you are absolutely certain it can't go anywhere else.
- *
- * Any C++ stuff must be wrapped with "#ifdef __cplusplus".  Do not use "//"
- * comments.
- */
-
-/*
- * Threading model.  Choose one:
- *
- * HAVE_PTHREADS - use the pthreads library.
- * HAVE_WIN32_THREADS - use Win32 thread primitives.
- *  -- combine HAVE_CREATETHREAD, HAVE_CREATEMUTEX, and HAVE__BEGINTHREADEX
- */
-#define HAVE_PTHREADS
-
-/*
- * Do we have pthread_setname_np()?
- *
- * (HAVE_PTHREAD_SETNAME_NP is used by WebKit to enable a function with
- * the same name but different parameters, so we can't use that here.)
- */
-#define HAVE_ANDROID_PTHREAD_SETNAME_NP
-
-/*
- * Do we have the futex syscall?
- */
-#define HAVE_FUTEX
-
-/*
- * Define if we already have the futex wrapper functions defined. Yes if
- * compiling against bionic.
- */
-#define HAVE_FUTEX_WRAPPERS 1
-
-/*
- * Process creation model.  Choose one:
- *
- * HAVE_FORKEXEC - use fork() and exec()
- * HAVE_WIN32_PROC - use CreateProcess()
- */
-#define HAVE_FORKEXEC
-
-/*
- * Process out-of-memory adjustment.  Set if running on Linux,
- * where we can write to /proc/<pid>/oom_adj to modify the out-of-memory
- * badness adjustment.
- */
-#define HAVE_OOM_ADJ
-
-/*
- * IPC model.  Choose one:
- *
- * HAVE_SYSV_IPC - use the classic SysV IPC mechanisms (semget, shmget).
- * HAVE_MACOSX_IPC - use Macintosh IPC mechanisms (sem_open, mmap).
- * HAVE_WIN32_IPC - use Win32 IPC (CreateSemaphore, CreateFileMapping).
- * HAVE_ANDROID_IPC - use Android versions (?, mmap).
- */
-#define HAVE_ANDROID_IPC 1
-
-/*
- * Memory-mapping model. Choose one:
- *
- * HAVE_POSIX_FILEMAP - use the Posix sys/mmap.h
- * HAVE_WIN32_FILEMAP - use Win32 filemaps
- */
-#define  HAVE_POSIX_FILEMAP 1
-
-/*
- * Define this if you have <termio.h>
- */
-#define  HAVE_TERMIO_H 1
-
-/*
- * Define this if you have <sys/sendfile.h>
- */
-#define  HAVE_SYS_SENDFILE_H 1
-
-/*
- * Define this if you build against have Microsoft C runtime (MSVCRT.DLL)
- */
-/* #define HAVE_MS_C_RUNTIME */
-
-/*
- * Define this if you have sys/uio.h
- */
-#define  HAVE_SYS_UIO_H 1
-
-/*
- * Define this if your platforms implements symbolic links
- * in its filesystems
- */
-#define HAVE_SYMLINKS 1
-
-/*
- * Define this if we have localtime_r().
- */
-/* #define HAVE_LOCALTIME_R 1 */
-
-/*
- * Define this if we have gethostbyname_r().
- */
-/* #define HAVE_GETHOSTBYNAME_R */
-
-/*
- * Define this if we have ioctl().
- */
-#define HAVE_IOCTL
-
-/*
- * Define this if we want to use WinSock.
- */
-/* #define HAVE_WINSOCK */
-
-/*
- * Define this if have clock_gettime() and friends
- *
- */
-#define HAVE_POSIX_CLOCKS
-
-/*
- * Define this if we have pthread_cond_timedwait_monotonic() and
- * clock_gettime(CLOCK_MONOTONIC).
- */
-#define HAVE_TIMEDWAIT_MONOTONIC
-
-/*
- * Define this if we have linux style epoll()
- */
-#define HAVE_EPOLL
-
-/*
- * Endianness of the target machine.  Choose one:
- *
- * HAVE_ENDIAN_H -- have endian.h header we can include.
- * HAVE_LITTLE_ENDIAN -- we are little endian.
- * HAVE_BIG_ENDIAN -- we are big endian.
- */
-#define HAVE_ENDIAN_H
-#define HAVE_LITTLE_ENDIAN
-
-/*
- * We need to choose between 32-bit and 64-bit off_t.  All of our code should
- * agree on the same size.  For desktop systems, use 64-bit values,
- * because some of our libraries (e.g. wxWidgets) expect to be built that way.
- */
-/*
- * #define _FILE_OFFSET_BITS 64
- * #define _LARGEFILE_SOURCE 1
- */
-
-/*
- * Define if platform has off64_t (and lseek64 and other xxx64 functions)
- */
-#define HAVE_OFF64_T
-
-/*
- * Defined if we have the backtrace() call for retrieving a stack trace.
- * Needed for CallStack to operate; if not defined, CallStack is
- * non-functional.
- */
-#define HAVE_BACKTRACE 0
-
-/*
- * Defined if we have the dladdr() call for retrieving the symbol associated
- * with a memory address.  If not defined, stack crawls will not have symbolic
- * information.
- */
-#define HAVE_DLADDR 0
-
-/*
- * Defined if we have the cxxabi.h header for demangling C++ symbols.  If
- * not defined, stack crawls will be displayed with raw mangled symbols
- */
-#define HAVE_CXXABI 0
-
-/*
- * Defined if we have the gettid() system call.
- */
-#define HAVE_GETTID
-
-/* 
- * Defined if we have the sched_setscheduler() call
- */
-#define HAVE_SCHED_SETSCHEDULER
-
-/*
- * Add any extra platform-specific defines here.
- */
-#ifndef __linux__
-#define __linux__
-#endif
-
-/*
- * Define if we have <malloc.h> header
- */
-#define HAVE_MALLOC_H
-
-/* 
- * Define if we're running on *our* linux on device or emulator.
- */
-#define HAVE_ANDROID_OS 1
-
-/*
- * Define if we have Linux-style non-filesystem Unix Domain Sockets
- */
-#define HAVE_LINUX_LOCAL_SOCKET_NAMESPACE 1
-
-/*
- * Define if we have Linux's inotify in <sys/inotify.h>.
- */
-#define HAVE_INOTIFY 1
-
-/*
- * Define if we have madvise() in <sys/mman.h>
- */
-#define HAVE_MADVISE 1
-
-/*
- * Define if we have Linux's dbus 
- */
-/* #define HAVE_DBUS 1 */
-
-/*
- * Define if tm struct has tm_gmtoff field
- */
-#define HAVE_TM_GMTOFF 1
-
-/*
- * Define if dirent struct has d_type field
- */
-#define HAVE_DIRENT_D_TYPE 1
-
-/*
- * Define if libc includes Android system properties implementation.
- */
-#define HAVE_LIBC_SYSTEM_PROPERTIES 1
-
-/*
- * Define if system provides a system property server (should be
- * mutually exclusive with HAVE_LIBC_SYSTEM_PROPERTIES).
- */
-/* #define HAVE_SYSTEM_PROPERTY_SERVER */
-
-/*
- * What CPU architecture does this platform use?
- */
-#define ARCH_X86
-
-/*
- * sprintf() format string for shared library naming.
- */
-#define OS_SHARED_LIB_FORMAT_STR    "lib%s.so"
-
-/*
- * Do we have __memcmp16()?
- */
-/* #define HAVE__MEMCMP16  1 */
-
-/*
- * type for the third argument to mincore().
- */
-#define MINCORE_POINTER_TYPE unsigned char *
-
-/*
- * Do we have the sigaction flag SA_NOCLDWAIT?
- */
-#define HAVE_SA_NOCLDWAIT
-
-/*
- * The default path separator for the platform
- */
-#define OS_PATH_SEPARATOR '/'
-
-/*
- * Is the filesystem case sensitive?
- */
-#define OS_CASE_SENSITIVE
-
-/*
- * Define if <sys/socket.h> exists.
- */
-#define HAVE_SYS_SOCKET_H 1
-
-/*
- * Define if the strlcpy() function exists on the system.
- */
-#define HAVE_STRLCPY 1
-
-/*
- * Define if the open_memstream() function exists on the system.
- */
-/* #define HAVE_OPEN_MEMSTREAM 1 */
-
-/*
- * Define if the BSD funopen() function exists on the system.
- */
-#define HAVE_FUNOPEN 1
-
-/*
- * Define if prctl() exists
- */
-#define HAVE_PRCTL 1
-
-/*
- * Whether or not _Unwind_Context is defined as a struct.
- */
-#define HAVE_UNWIND_CONTEXT_STRUCT
-
-/*
- * Define if <stdint.h> exists.
- */
-#define HAVE_STDINT_H 1
-
-/*
- * Define if <stdbool.h> exists.
- */
-#define HAVE_STDBOOL_H 1
-
-/*
- * Define if <sched.h> exists.
- */
-#define HAVE_SCHED_H 1
-
-/*
- * Define if pread() exists
- */
-#define HAVE_PREAD 1
-
-/*
- * Define if we have st_mtim in struct stat
- */
-#define HAVE_STAT_ST_MTIM 1
-
-/*
- * Define if printf() supports %zd for size_t arguments
- */
-#define HAVE_PRINTF_ZD 1
-
-/*
- * Define to 1 if <stdlib.h> provides qsort_r() with a BSD style function prototype.
- */
-#define HAVE_BSD_QSORT_R 0
-
-/*
- * Define to 1 if <stdlib.h> provides qsort_r() with a GNU style function prototype.
- */
-#define HAVE_GNU_QSORT_R 0
-
-#endif /* _ANDROID_CONFIG_H */
diff --git a/include/arch/windows/AndroidConfig.h b/include/arch/windows/AndroidConfig.h
deleted file mode 100644
index 0274da5..0000000
--- a/include/arch/windows/AndroidConfig.h
+++ /dev/null
@@ -1,351 +0,0 @@
-/*
- * Copyright (C) 2005 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-/*
- * Android config -- "CYGWIN_NT-5.1".  
- *
- * Cygwin has pthreads, but GDB seems to get confused if you use it to
- * create threads.  By "confused", I mean it freezes up the first time the
- * debugged process creates a thread, even if you use CreateThread.  The
- * mere presence of pthreads linkage seems to cause problems.
- */
-#ifndef _ANDROID_CONFIG_H
-#define _ANDROID_CONFIG_H
-
-/*
- * ===========================================================================
- *                              !!! IMPORTANT !!!
- * ===========================================================================
- *
- * This file is included by ALL C/C++ source files.  Don't put anything in
- * here unless you are absolutely certain it can't go anywhere else.
- *
- * Any C++ stuff must be wrapped with "#ifdef __cplusplus".  Do not use "//"
- * comments.
- */
-
-/*
- * Threading model.  Choose one:
- *
- * HAVE_PTHREADS - use the pthreads library.
- * HAVE_WIN32_THREADS - use Win32 thread primitives.
- */
-#define HAVE_WIN32_THREADS
-
-/*
- * Do we have the futex syscall?
- */
-
-/* #define HAVE_FUTEX */
-
-
-/*
- * Process creation model.  Choose one:
- *
- * HAVE_FORKEXEC - use fork() and exec()
- * HAVE_WIN32_PROC - use CreateProcess()
- */
-#ifdef __CYGWIN__
-#  define HAVE_FORKEXEC
-#else
-#  define HAVE_WIN32_PROC
-#endif
-
-/*
- * Process out-of-memory adjustment.  Set if running on Linux,
- * where we can write to /proc/<pid>/oom_adj to modify the out-of-memory
- * badness adjustment.
- */
-/* #define HAVE_OOM_ADJ */
-
-/*
- * IPC model.  Choose one:
- *
- * HAVE_SYSV_IPC - use the classic SysV IPC mechanisms (semget, shmget).
- * HAVE_MACOSX_IPC - use Macintosh IPC mechanisms (sem_open, mmap).
- * HAVE_WIN32_IPC - use Win32 IPC (CreateSemaphore, CreateFileMapping).
- * HAVE_ANDROID_IPC - use Android versions (?, mmap).
- */
-#define HAVE_WIN32_IPC
-
-/*
- * Memory-mapping model. Choose one:
- *
- * HAVE_POSIX_FILEMAP - use the Posix sys/mmap.h
- * HAVE_WIN32_FILEMAP - use Win32 filemaps
- */
-#ifdef __CYGWIN__
-#define  HAVE_POSIX_FILEMAP
-#else
-#define  HAVE_WIN32_FILEMAP
-#endif
-
-/*
- * Define this if you have <termio.h>
- */
-#ifdef __CYGWIN__
-#  define  HAVE_TERMIO_H
-#endif
-
-/*
- * Define this if you have <sys/sendfile.h>
- */
-#ifdef __CYGWIN__
-#  define  HAVE_SYS_SENDFILE_H 1
-#endif
-
-/*
- * Define this if you build against MSVCRT.DLL
- */
-#ifndef __CYGWIN__
-#  define HAVE_MS_C_RUNTIME
-#endif
-
-/*
- * Define this if you have sys/uio.h
- */
-#ifdef __CYGWIN__
-#define  HAVE_SYS_UIO_H
-#endif
-
-
-/*
- * Define this if we have localtime_r().
- */
-/* #define HAVE_LOCALTIME_R 1 */
-
-/*
- * Define this if we have gethostbyname_r().
- */
-/* #define HAVE_GETHOSTBYNAME_R */
-
-/*
- * Define this if we have ioctl().
- */
-/* #define HAVE_IOCTL */
-
-/*
- * Define this if we want to use WinSock.
- */
-#ifndef __CYGWIN__
-#define HAVE_WINSOCK
-#endif
-
-/*
- * Define this if your platforms implements symbolic links
- * in its filesystems
- */
-/* #define HAVE_SYMLINKS */
-
-/*
- * Define this if have clock_gettime() and friends
- */
-/* #define HAVE_POSIX_CLOCKS */
-
-/*
- * Endianness of the target machine.  Choose one:
- *
- * HAVE_ENDIAN_H -- have endian.h header we can include.
- * HAVE_LITTLE_ENDIAN -- we are little endian.
- * HAVE_BIG_ENDIAN -- we are big endian.
- */
-#ifdef __CYGWIN__
-#define HAVE_ENDIAN_H
-#endif
-
-#define HAVE_LITTLE_ENDIAN
-
-/*
- * We need to choose between 32-bit and 64-bit off_t.  All of our code should
- * agree on the same size.  For desktop systems, use 64-bit values,
- * because some of our libraries (e.g. wxWidgets) expect to be built that way.
- */
-#define _FILE_OFFSET_BITS 64
-#define _LARGEFILE_SOURCE 1
-
-/*
- * Define if platform has off64_t (and lseek64 and other xxx64 functions)
- */
-#define HAVE_OFF64_T
-
-/*
- * Defined if we have the backtrace() call for retrieving a stack trace.
- * Needed for CallStack to operate; if not defined, CallStack is
- * non-functional.
- */
-#define HAVE_BACKTRACE 0
-
-/*
- * Defined if we have the dladdr() call for retrieving the symbol associated
- * with a memory address.  If not defined, stack crawls will not have symbolic
- * information.
- */
-#define HAVE_DLADDR 0
-
-/*
- * Defined if we have the cxxabi.h header for demangling C++ symbols.  If
- * not defined, stack crawls will be displayed with raw mangled symbols
- */
-#define HAVE_CXXABI 0
-
-/*
- * Define if tm struct has tm_gmtoff field
- */
-/* #define HAVE_TM_GMTOFF 1 */
-
-/*
- * Define if dirent struct has d_type field
- */
-/* #define HAVE_DIRENT_D_TYPE 1 */
-
-/*
- * Define if libc includes Android system properties implementation.
- */
-/* #define HAVE_LIBC_SYSTEM_PROPERTIES */
-
-/*
- * Define if system provides a system property server (should be
- * mutually exclusive with HAVE_LIBC_SYSTEM_PROPERTIES).
- */
-/* #define HAVE_SYSTEM_PROPERTY_SERVER */
-
-/*
- * Define if we have madvise() in <sys/mman.h>
- */
-/*#define HAVE_MADVISE 1*/
-
-/*
- * Add any extra platform-specific defines here.
- */
-#define WIN32 1                 /* stock Cygwin doesn't define these */
-#define _WIN32 1
-#define _WIN32_WINNT 0x0500     /* admit to using >= Win2K */
-
-#define HAVE_WINDOWS_PATHS      /* needed by simulator */
-
-/*
- * What CPU architecture does this platform use?
- */
-#define ARCH_X86
-
-/*
- * sprintf() format string for shared library naming.
- */
-#define OS_SHARED_LIB_FORMAT_STR    "lib%s.dll"
-
-/*
- * type for the third argument to mincore().
- */
-#define MINCORE_POINTER_TYPE unsigned char *
-
-/*
- * The default path separator for the platform
- */
-#define OS_PATH_SEPARATOR '\\'
-
-/*
- * Is the filesystem case sensitive?
- */
-/* #define OS_CASE_SENSITIVE */
-
-/*
- * Define if <sys/socket.h> exists.
- * Cygwin has it, but not MinGW.
- */
-#ifdef USE_MINGW
-/* #define HAVE_SYS_SOCKET_H */
-#else
-#define HAVE_SYS_SOCKET_H 1
-#endif
-
-/*
- * Define if the strlcpy() function exists on the system.
- */
-/* #define HAVE_STRLCPY 1 */
-
-/*
- * Define if the open_memstream() function exists on the system.
- */
-/* #define HAVE_OPEN_MEMSTREAM 1 */
-
-/*
- * Define if the BSD funopen() function exists on the system.
- */
-/* #define HAVE_FUNOPEN 1 */
-
-/*
- * Define if <winsock2.h> exists.
- * Only MinGW has it.
- */
-#ifdef USE_MINGW
-#define HAVE_WINSOCK2_H 1
-#else
-/* #define HAVE_WINSOCK2_H */
-#endif
-
-/*
- * Various definitions missing in MinGW
- */
-#ifdef USE_MINGW
-#define S_IRGRP 0
-#endif
-
-/*
- * Define if writev() exists.
- */
-/* #define HAVE_WRITEV */
-
-/*
- * Define if <stdint.h> exists.
- */
-/* #define HAVE_STDINT_H */
-
-/*
- * Define if <stdbool.h> exists.
- */
-#define HAVE_STDBOOL_H
-
-/*
- * Define if <sched.h> exists.
- */
-/* #define HAVE_SCHED_H */
-
-/*
- * Define if pread() exists
- */
-/* #define HAVE_PREAD 1 */
-
-/*
- * Define if we have st_mtim in struct stat
- */
-/* #define HAVE_STAT_ST_MTIM 1 */
-
-/*
- * Define if printf() supports %zd for size_t arguments
- */
-/* #define HAVE_PRINTF_ZD 1 */
-
-/*
- * Define to 1 if <stdlib.h> provides qsort_r() with a BSD style function prototype.
- */
-#define HAVE_BSD_QSORT_R 0
-
-/*
- * Define to 1 if <stdlib.h> provides qsort_r() with a GNU style function prototype.
- */
-#define HAVE_GNU_QSORT_R 0
-
-#endif /*_ANDROID_CONFIG_H*/
diff --git a/include/corkscrew/map_info.h b/include/corkscrew/map_info.h
index c5cd8f8..ea1d35f 100644
--- a/include/corkscrew/map_info.h
+++ b/include/corkscrew/map_info.h
@@ -21,6 +21,7 @@
 
 #include <sys/types.h>
 #include <stdbool.h>
+#include <stdint.h>
 
 #ifdef __cplusplus
 extern "C" {
diff --git a/include/corkscrew/ptrace.h b/include/corkscrew/ptrace.h
index 9e0da78..76276d8 100644
--- a/include/corkscrew/ptrace.h
+++ b/include/corkscrew/ptrace.h
@@ -24,6 +24,7 @@
 
 #include <sys/types.h>
 #include <stdbool.h>
+#include <stdint.h>
 
 #ifdef __cplusplus
 extern "C" {
diff --git a/include/corkscrew/symbol_table.h b/include/corkscrew/symbol_table.h
index 020c8b8..4998750 100644
--- a/include/corkscrew/symbol_table.h
+++ b/include/corkscrew/symbol_table.h
@@ -17,6 +17,7 @@
 #ifndef _CORKSCREW_SYMBOL_TABLE_H
 #define _CORKSCREW_SYMBOL_TABLE_H
 
+#include <stdint.h>
 #include <sys/types.h>
 
 #ifdef __cplusplus
diff --git a/include/cutils/fs.h b/include/cutils/fs.h
new file mode 100644
index 0000000..fd5296b
--- /dev/null
+++ b/include/cutils/fs.h
@@ -0,0 +1,62 @@
+/*
+ * Copyright (C) 2012 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef __CUTILS_FS_H
+#define __CUTILS_FS_H
+
+#include <sys/types.h>
+
+/*
+ * TEMP_FAILURE_RETRY is defined by some, but not all, versions of
+ * <unistd.h>. (Alas, it is not as standard as we'd hoped!) So, if it's
+ * not already defined, then define it here.
+ */
+#ifndef TEMP_FAILURE_RETRY
+/* Used to retry syscalls that can return EINTR. */
+#define TEMP_FAILURE_RETRY(exp) ({         \
+    typeof (exp) _rc;                      \
+    do {                                   \
+        _rc = (exp);                       \
+    } while (_rc == -1 && errno == EINTR); \
+    _rc; })
+#endif
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/*
+ * Ensure that directory exists with given mode and owners.
+ */
+extern int fs_prepare_dir(const char* path, mode_t mode, uid_t uid, gid_t gid);
+
+/*
+ * Read single plaintext integer from given file, correctly handling files
+ * partially written with fs_write_atomic_int().
+ */
+extern int fs_read_atomic_int(const char* path, int* value);
+
+/*
+ * Write single plaintext integer to given file, creating backup while
+ * in progress.
+ */
+extern int fs_write_atomic_int(const char* path, int value);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* __CUTILS_FS_H */
diff --git a/include/cutils/multiuser.h b/include/cutils/multiuser.h
new file mode 100644
index 0000000..635ddb1
--- /dev/null
+++ b/include/cutils/multiuser.h
@@ -0,0 +1,41 @@
+/*
+ * Copyright (C) 2012 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef __CUTILS_MULTIUSER_H
+#define __CUTILS_MULTIUSER_H
+
+#include <sys/types.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+// NOTE: keep in sync with android.os.UserId
+
+#define MULTIUSER_APP_PER_USER_RANGE 100000
+
+typedef uid_t userid_t;
+typedef uid_t appid_t;
+
+extern userid_t multiuser_get_user_id(uid_t uid);
+extern appid_t multiuser_get_app_id(uid_t uid);
+extern uid_t multiuser_get_uid(userid_t userId, appid_t appId);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* __CUTILS_MULTIUSER_H */
diff --git a/include/cutils/tztime.h b/include/cutils/tztime.h
index dbdbd60..36ac25d 100644
--- a/include/cutils/tztime.h
+++ b/include/cutils/tztime.h
@@ -17,8 +17,45 @@
 #ifndef _CUTILS_TZTIME_H
 #define _CUTILS_TZTIME_H
 
-// TODO: fix both callers to just include <bionic_time.h> themselves.
+#include <time.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+time_t mktime_tz(struct tm * const tmp, char const * tz);
+void localtime_tz(const time_t * const timep, struct tm * tmp, const char* tz);
+
+#ifdef HAVE_ANDROID_OS
+
+/* the following is defined in the Bionic C library on Android, but the
+ * declarations are only available through a platform-private header
+ */
 #include <bionic_time.h>
 
+#else /* !HAVE_ANDROID_OS */
+
+struct strftime_locale {
+    const char *mon[12];    /* short names */
+    const char *month[12];  /* long names */
+    const char *standalone_month[12];  /* long standalone names */
+    const char *wday[7];    /* short names */
+    const char *weekday[7]; /* long names */
+    const char *X_fmt;
+    const char *x_fmt;
+    const char *c_fmt;
+    const char *am;
+    const char *pm;
+    const char *date_fmt;
+};
+
+size_t strftime_tz(char *s, size_t max, const char *format, const struct tm *tm, const struct strftime_locale *locale);
+
+#endif /* !HAVE_ANDROID_OS */
+
+#ifdef __cplusplus
+}
+#endif
+
 #endif /* __CUTILS_TZTIME_H */ 
 
diff --git a/include/ion/ion.h b/include/ion/ion.h
index cafead5..018c0a1 100644
--- a/include/ion/ion.h
+++ b/include/ion/ion.h
@@ -27,8 +27,11 @@
 
 int ion_open();
 int ion_close(int fd);
-int ion_alloc(int fd, size_t len, size_t align, unsigned int flags,
-              struct ion_handle **handle);
+int ion_alloc(int fd, size_t len, size_t align, unsigned int heap_mask,
+	      unsigned int flags, struct ion_handle **handle);
+int ion_alloc_fd(int fd, size_t len, size_t align, unsigned int heap_mask,
+		 unsigned int flags, int *handle_fd);
+int ion_sync_fd(int fd, int handle_fd);
 int ion_free(int fd, struct ion_handle *handle);
 int ion_map(int fd, struct ion_handle *handle, size_t length, int prot,
             int flags, off_t offset, unsigned char **ptr, int *map_fd);
diff --git a/include/mincrypt/rsa.h b/include/mincrypt/rsa.h
index 7d7d571..d7429fc 100644
--- a/include/mincrypt/rsa.h
+++ b/include/mincrypt/rsa.h
@@ -13,14 +13,14 @@
 **       be used to endorse or promote products derived from this software
 **       without specific prior written permission.
 **
-** THIS SOFTWARE IS PROVIDED BY Google Inc. ``AS IS'' AND ANY EXPRESS OR 
+** THIS SOFTWARE IS PROVIDED BY Google Inc. ``AS IS'' AND ANY EXPRESS OR
 ** IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
-** MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO 
+** MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
 ** EVENT SHALL Google Inc. BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 ** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
-** PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; 
-** OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, 
-** WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR 
+** PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
+** OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+** WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
 ** OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
 ** ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */
@@ -42,6 +42,7 @@
     uint32_t n0inv;           /* -1 / n[0] mod 2^32 */
     uint32_t n[RSANUMWORDS];  /* modulus as little endian array */
     uint32_t rr[RSANUMWORDS]; /* R^2 as little endian array */
+    int exponent;             /* 3 or 65537 */
 } RSAPublicKey;
 
 int RSA_verify(const RSAPublicKey *key,
diff --git a/include/netutils/ifc.h b/include/netutils/ifc.h
index 3574f7f..1f5421d 100644
--- a/include/netutils/ifc.h
+++ b/include/netutils/ifc.h
@@ -69,6 +69,8 @@
                          uint32_t prefixLength, in_addr_t gateway,
                          in_addr_t dns1, in_addr_t dns2);
 
+extern in_addr_t prefixLengthToIpv4Netmask(int prefix_length);
+
 __END_DECLS
 
 #endif /* _NETUTILS_IFC_H_ */
diff --git a/include/private/android_filesystem_config.h b/include/private/android_filesystem_config.h
index 33ecd9a..7e34da8 100644
--- a/include/private/android_filesystem_config.h
+++ b/include/private/android_filesystem_config.h
@@ -76,6 +76,7 @@
 #define AID_NET_ADMIN     3005  /* can configure interfaces and routing tables. */
 #define AID_NET_BW_STATS  3006  /* read bandwidth statistics */
 #define AID_NET_BW_ACCT   3007  /* change bandwidth statistics accounting */
+#define AID_NET_BT_STACK  3008  /* bluetooth: access config files */
 
 #define AID_MISC          9998  /* access to misc storage */
 #define AID_NOBODY        9999
@@ -122,6 +123,7 @@
     { "diag",      AID_DIAG, },
     { "net_bt_admin", AID_NET_BT_ADMIN, },
     { "net_bt",    AID_NET_BT, },
+    { "net_bt_stack",    AID_NET_BT_STACK, },
     { "sdcard_r",  AID_SDCARD_R, },
     { "sdcard_rw", AID_SDCARD_RW, },
     { "media_rw",  AID_MEDIA_RW, },
@@ -191,12 +193,6 @@
     { 00550, AID_ROOT,      AID_SHELL,     "system/etc/init.testmenu" },
     { 00550, AID_DHCP,      AID_SHELL,     "system/etc/dhcpcd/dhcpcd-run-hooks" },
     { 00440, AID_BLUETOOTH, AID_BLUETOOTH, "system/etc/dbus.conf" },
-    { 00440, AID_BLUETOOTH, AID_BLUETOOTH, "system/etc/bluetooth/main.conf" },
-    { 00440, AID_BLUETOOTH, AID_BLUETOOTH, "system/etc/bluetooth/input.conf" },
-    { 00440, AID_BLUETOOTH, AID_BLUETOOTH, "system/etc/bluetooth/audio.conf" },
-    { 00440, AID_BLUETOOTH, AID_BLUETOOTH, "system/etc/bluetooth/network.conf" },
-    { 00444, AID_NET_BT,    AID_NET_BT,    "system/etc/bluetooth/blacklist.conf" },
-    { 00640, AID_SYSTEM,    AID_SYSTEM,    "system/etc/bluetooth/auto_pairing.conf" },
     { 00444, AID_RADIO,     AID_AUDIO,     "system/etc/AudioPara4.csv" },
     { 00555, AID_ROOT,      AID_ROOT,      "system/etc/ppp/*" },
     { 00555, AID_ROOT,      AID_ROOT,      "system/etc/rc.*" },
diff --git a/include/sync/sync.h b/include/sync/sync.h
index 6aa5f2d..918acf6 100644
--- a/include/sync/sync.h
+++ b/include/sync/sync.h
@@ -19,13 +19,30 @@
 #ifndef __SYS_CORE_SYNC_H
 #define __SYS_CORE_SYNC_H
 
-#include <linux/sync.h>
-#include <linux/sw_sync.h>
+#include <sys/cdefs.h>
+#include <stdint.h>
 
 __BEGIN_DECLS
 
+// XXX: These structs are copied from the header "linux/sync.h".
+struct sync_fence_info_data {
+ uint32_t len;
+ char name[32];
+ int32_t status;
+ uint8_t pt_info[0];
+};
+
+struct sync_pt_info {
+ uint32_t len;
+ char obj_name[32];
+ char driver_name[32];
+ int32_t status;
+ uint64_t timestamp_ns;
+ uint8_t driver_data[0];
+};
+
 /* timeout in msecs */
-int sync_wait(int fd, unsigned int timeout);
+int sync_wait(int fd, int timeout);
 int sync_merge(const char *name, int fd1, int fd2);
 struct sync_fence_info_data *sync_fence_info(int fd);
 struct sync_pt_info *sync_pt_info(struct sync_fence_info_data *info,
diff --git a/include/system/audio.h b/include/system/audio.h
index 3807317..d246070 100644
--- a/include/system/audio.h
+++ b/include/system/audio.h
@@ -63,7 +63,10 @@
     AUDIO_SOURCE_CAMCORDER           = 5,
     AUDIO_SOURCE_VOICE_RECOGNITION   = 6,
     AUDIO_SOURCE_VOICE_COMMUNICATION = 7,
-
+    AUDIO_SOURCE_REMOTE_SUBMIX       = 8, /* Source for the mix to be presented remotely.      */
+                                          /* An example of remote presentation is Wifi Display */
+                                          /*  where a dongle attached to a TV can be used to   */
+                                          /*  play the mix captured by this audio source.      */
     AUDIO_SOURCE_CNT,
     AUDIO_SOURCE_MAX                 = AUDIO_SOURCE_CNT - 1,
 } audio_source_t;
@@ -152,7 +155,7 @@
                                         AUDIO_FORMAT_PCM_SUB_8_24_BIT),
 } audio_format_t;
 
-typedef enum {
+enum {
     /* output channels */
     AUDIO_CHANNEL_OUT_FRONT_LEFT            = 0x1,
     AUDIO_CHANNEL_OUT_FRONT_RIGHT           = 0x2,
@@ -275,7 +278,11 @@
     AUDIO_IN_ACOUSTICS_TX_DISABLE    = 0,
 } audio_in_acoustics_t;
 
-typedef enum {
+enum {
+    AUDIO_DEVICE_NONE                          = 0x0,
+    /* reserved bits */
+    AUDIO_DEVICE_BIT_IN                        = 0x80000000,
+    AUDIO_DEVICE_BIT_DEFAULT                   = 0x40000000,
     /* output devices */
     AUDIO_DEVICE_OUT_EARPIECE                  = 0x1,
     AUDIO_DEVICE_OUT_SPEAKER                   = 0x2,
@@ -292,7 +299,8 @@
     AUDIO_DEVICE_OUT_DGTL_DOCK_HEADSET         = 0x1000,
     AUDIO_DEVICE_OUT_USB_ACCESSORY             = 0x2000,
     AUDIO_DEVICE_OUT_USB_DEVICE                = 0x4000,
-    AUDIO_DEVICE_OUT_DEFAULT                   = 0x8000,
+    AUDIO_DEVICE_OUT_REMOTE_SUBMIX             = 0x8000,
+    AUDIO_DEVICE_OUT_DEFAULT                   = AUDIO_DEVICE_BIT_DEFAULT,
     AUDIO_DEVICE_OUT_ALL      = (AUDIO_DEVICE_OUT_EARPIECE |
                                  AUDIO_DEVICE_OUT_SPEAKER |
                                  AUDIO_DEVICE_OUT_WIRED_HEADSET |
@@ -308,6 +316,7 @@
                                  AUDIO_DEVICE_OUT_DGTL_DOCK_HEADSET |
                                  AUDIO_DEVICE_OUT_USB_ACCESSORY |
                                  AUDIO_DEVICE_OUT_USB_DEVICE |
+                                 AUDIO_DEVICE_OUT_REMOTE_SUBMIX |
                                  AUDIO_DEVICE_OUT_DEFAULT),
     AUDIO_DEVICE_OUT_ALL_A2DP = (AUDIO_DEVICE_OUT_BLUETOOTH_A2DP |
                                  AUDIO_DEVICE_OUT_BLUETOOTH_A2DP_HEADPHONES |
@@ -319,15 +328,20 @@
                                  AUDIO_DEVICE_OUT_USB_DEVICE),
 
     /* input devices */
-    AUDIO_DEVICE_IN_COMMUNICATION         = 0x10000,
-    AUDIO_DEVICE_IN_AMBIENT               = 0x20000,
-    AUDIO_DEVICE_IN_BUILTIN_MIC           = 0x40000,
-    AUDIO_DEVICE_IN_BLUETOOTH_SCO_HEADSET = 0x80000,
-    AUDIO_DEVICE_IN_WIRED_HEADSET         = 0x100000,
-    AUDIO_DEVICE_IN_AUX_DIGITAL           = 0x200000,
-    AUDIO_DEVICE_IN_VOICE_CALL            = 0x400000,
-    AUDIO_DEVICE_IN_BACK_MIC              = 0x800000,
-    AUDIO_DEVICE_IN_DEFAULT               = 0x80000000,
+    AUDIO_DEVICE_IN_COMMUNICATION         = AUDIO_DEVICE_BIT_IN | 0x1,
+    AUDIO_DEVICE_IN_AMBIENT               = AUDIO_DEVICE_BIT_IN | 0x2,
+    AUDIO_DEVICE_IN_BUILTIN_MIC           = AUDIO_DEVICE_BIT_IN | 0x4,
+    AUDIO_DEVICE_IN_BLUETOOTH_SCO_HEADSET = AUDIO_DEVICE_BIT_IN | 0x8,
+    AUDIO_DEVICE_IN_WIRED_HEADSET         = AUDIO_DEVICE_BIT_IN | 0x10,
+    AUDIO_DEVICE_IN_AUX_DIGITAL           = AUDIO_DEVICE_BIT_IN | 0x20,
+    AUDIO_DEVICE_IN_VOICE_CALL            = AUDIO_DEVICE_BIT_IN | 0x40,
+    AUDIO_DEVICE_IN_BACK_MIC              = AUDIO_DEVICE_BIT_IN | 0x80,
+    AUDIO_DEVICE_IN_REMOTE_SUBMIX         = AUDIO_DEVICE_BIT_IN | 0x100,
+    AUDIO_DEVICE_IN_ANLG_DOCK_HEADSET     = AUDIO_DEVICE_BIT_IN | 0x200,
+    AUDIO_DEVICE_IN_DGTL_DOCK_HEADSET     = AUDIO_DEVICE_BIT_IN | 0x400,
+    AUDIO_DEVICE_IN_USB_ACCESSORY         = AUDIO_DEVICE_BIT_IN | 0x800,
+    AUDIO_DEVICE_IN_USB_DEVICE            = AUDIO_DEVICE_BIT_IN | 0x1000,
+    AUDIO_DEVICE_IN_DEFAULT               = AUDIO_DEVICE_BIT_IN | AUDIO_DEVICE_BIT_DEFAULT,
 
     AUDIO_DEVICE_IN_ALL     = (AUDIO_DEVICE_IN_COMMUNICATION |
                                AUDIO_DEVICE_IN_AMBIENT |
@@ -337,9 +351,16 @@
                                AUDIO_DEVICE_IN_AUX_DIGITAL |
                                AUDIO_DEVICE_IN_VOICE_CALL |
                                AUDIO_DEVICE_IN_BACK_MIC |
+                               AUDIO_DEVICE_IN_REMOTE_SUBMIX |
+                               AUDIO_DEVICE_IN_ANLG_DOCK_HEADSET |
+                               AUDIO_DEVICE_IN_DGTL_DOCK_HEADSET |
+                               AUDIO_DEVICE_IN_USB_ACCESSORY |
+                               AUDIO_DEVICE_IN_USB_DEVICE |
                                AUDIO_DEVICE_IN_DEFAULT),
     AUDIO_DEVICE_IN_ALL_SCO = AUDIO_DEVICE_IN_BLUETOOTH_SCO_HEADSET,
-} audio_devices_t;
+};
+
+typedef uint32_t audio_devices_t;
 
 /* the audio output flags serve two purposes:
  * - when an AudioTrack is created they indicate a "wish" to be connected to an
@@ -366,7 +387,8 @@
 
 static inline bool audio_is_output_device(audio_devices_t device)
 {
-    if ((popcount(device) == 1) && ((device & ~AUDIO_DEVICE_OUT_ALL) == 0))
+    if (((device & AUDIO_DEVICE_BIT_IN) == 0) &&
+            (popcount(device) == 1) && ((device & ~AUDIO_DEVICE_OUT_ALL) == 0))
         return true;
     else
         return false;
@@ -374,12 +396,20 @@
 
 static inline bool audio_is_input_device(audio_devices_t device)
 {
-    if ((popcount(device) == 1) && ((device & ~AUDIO_DEVICE_IN_ALL) == 0))
-        return true;
-    else
-        return false;
+    if ((device & AUDIO_DEVICE_BIT_IN) != 0) {
+        device &= ~AUDIO_DEVICE_BIT_IN;
+        if ((popcount(device) == 1) && ((device & ~AUDIO_DEVICE_IN_ALL) == 0))
+            return true;
+    }
+    return false;
 }
 
+static inline bool audio_is_output_devices(audio_devices_t device)
+{
+    return (device & AUDIO_DEVICE_BIT_IN) == 0;
+}
+
+
 static inline bool audio_is_a2dp_device(audio_devices_t device)
 {
     if ((popcount(device) == 1) && (device & AUDIO_DEVICE_OUT_ALL_A2DP))
@@ -390,6 +420,7 @@
 
 static inline bool audio_is_bluetooth_sco_device(audio_devices_t device)
 {
+    device &= ~AUDIO_DEVICE_BIT_IN;
     if ((popcount(device) == 1) && (device & (AUDIO_DEVICE_OUT_ALL_SCO |
                    AUDIO_DEVICE_IN_BLUETOOTH_SCO_HEADSET)))
         return true;
@@ -405,6 +436,14 @@
         return false;
 }
 
+static inline bool audio_is_remote_submix_device(audio_devices_t device)
+{
+    if ((popcount(device) == 1) && (device & AUDIO_DEVICE_OUT_REMOTE_SUBMIX))
+        return true;
+    else
+        return false;
+}
+
 static inline bool audio_is_input_channel(uint32_t channel)
 {
     if ((channel & ~AUDIO_CHANNEL_IN_ALL) == 0)
diff --git a/include/system/audio_policy.h b/include/system/audio_policy.h
index 91b8e9c..6b49a80 100644
--- a/include/system/audio_policy.h
+++ b/include/system/audio_policy.h
@@ -43,6 +43,8 @@
     AUDIO_POLICY_FORCE_ANALOG_DOCK,
     AUDIO_POLICY_FORCE_DIGITAL_DOCK,
     AUDIO_POLICY_FORCE_NO_BT_A2DP, /* A2DP sink is not preferred to speaker or wired HS */
+    AUDIO_POLICY_FORCE_REMOTE_SUBMIX,
+    AUDIO_POLICY_FORCE_SYSTEM_ENFORCED,
 
     AUDIO_POLICY_FORCE_CFG_CNT,
     AUDIO_POLICY_FORCE_CFG_MAX = AUDIO_POLICY_FORCE_CFG_CNT - 1,
@@ -56,6 +58,7 @@
     AUDIO_POLICY_FORCE_FOR_MEDIA,
     AUDIO_POLICY_FORCE_FOR_RECORD,
     AUDIO_POLICY_FORCE_FOR_DOCK,
+    AUDIO_POLICY_FORCE_FOR_SYSTEM,
 
     AUDIO_POLICY_FORCE_USE_CNT,
     AUDIO_POLICY_FORCE_USE_MAX = AUDIO_POLICY_FORCE_USE_CNT - 1,
diff --git a/include/system/camera.h b/include/system/camera.h
index e4cacc5..7a4dd53 100644
--- a/include/system/camera.h
+++ b/include/system/camera.h
@@ -163,6 +163,17 @@
      * can silently finish itself or show a dialog.
      */
     CAMERA_CMD_PING = 9,
+
+    /**
+     * Configure the number of video buffers used for recording. The intended
+     * video buffer count for recording is passed as arg1, which must be
+     * greater than 0. This command must be sent before recording is started.
+     * This command returns INVALID_OPERATION error if it is sent after video
+     * recording is started, or the command is not supported at all. This
+     * command also returns a BAD_VALUE error if the intended video buffer
+     * count is non-positive or too big to be realized.
+     */
+    CAMERA_CMD_SET_VIDEO_BUFFER_COUNT = 10,
 };
 
 /** camera fatal errors */
diff --git a/include/system/graphics.h b/include/system/graphics.h
index 24e2bfb..82b5fcc 100644
--- a/include/system/graphics.h
+++ b/include/system/graphics.h
@@ -109,6 +109,37 @@
      */
     HAL_PIXEL_FORMAT_RAW_SENSOR = 0x20,
 
+    /*
+     * Android binary blob graphics buffer format:
+     *
+     * This format is used to carry task-specific data which does not have a
+     * standard image structure. The details of the format are left to the two
+     * endpoints.
+     *
+     * A typical use case is for transporting JPEG-compressed images from the
+     * Camera HAL to the framework or to applications.
+     *
+     * Buffers of this format must have a height of 1, and width equal to their
+     * size in bytes.
+     */
+    HAL_PIXEL_FORMAT_BLOB = 0x21,
+
+    /*
+     * Android format indicating that the choice of format is entirely up to the
+     * device-specific Gralloc implementation.
+     *
+     * The Gralloc implementation should examine the usage bits passed in when
+     * allocating a buffer with this format, and it should derive the pixel
+     * format from those usage flags.  This format will never be used with any
+     * of the GRALLOC_USAGE_SW_* usage flags.
+     *
+     * If a buffer of this format is to be used as an OpenGL ES texture, the
+     * framework will assume that sampling the texture will always return an
+     * alpha value of 1.0 (i.e. the buffer contains only opaque pixel values).
+     *
+     */
+    HAL_PIXEL_FORMAT_IMPLEMENTATION_DEFINED = 0x22,
+
     /* Legacy formats (deprecated), used by ImageFormat.java */
     HAL_PIXEL_FORMAT_YCbCr_422_SP       = 0x10, // NV16
     HAL_PIXEL_FORMAT_YCrCb_420_SP       = 0x11, // NV21
diff --git a/include/system/window.h b/include/system/window.h
index 8e00bcd..4698fb3 100644
--- a/include/system/window.h
+++ b/include/system/window.h
@@ -17,11 +17,15 @@
 #ifndef SYSTEM_CORE_INCLUDE_ANDROID_WINDOW_H
 #define SYSTEM_CORE_INCLUDE_ANDROID_WINDOW_H
 
+#include <cutils/native_handle.h>
+#include <errno.h>
+#include <limits.h>
 #include <stdint.h>
 #include <string.h>
+#include <sync/sync.h>
 #include <sys/cdefs.h>
 #include <system/graphics.h>
-#include <cutils/native_handle.h>
+#include <unistd.h>
 
 __BEGIN_DECLS
 
@@ -38,6 +42,14 @@
 
 // ---------------------------------------------------------------------------
 
+// This #define may be used to conditionally compile device-specific code to
+// support either the prior ANativeWindow interface, which did not pass libsync
+// fences around, or the new interface that does.  This #define is only present
+// when the ANativeWindow interface does include libsync support.
+#define ANDROID_NATIVE_WINDOW_HAS_SYNC 1
+
+// ---------------------------------------------------------------------------
+
 typedef const native_handle_t* buffer_handle_t;
 
 // ---------------------------------------------------------------------------
@@ -379,8 +391,12 @@
      * allowed if a specific buffer count has been set.
      *
      * Returns 0 on success or -errno on error.
+     *
+     * XXX: This function is deprecated.  It will continue to work for some
+     * time for binary compatibility, but the new dequeueBuffer function that
+     * outputs a fence file descriptor should be used in its place.
      */
-    int     (*dequeueBuffer)(struct ANativeWindow* window,
+    int     (*dequeueBuffer_DEPRECATED)(struct ANativeWindow* window,
                 struct ANativeWindowBuffer** buffer);
 
     /*
@@ -389,9 +405,14 @@
      * dequeueBuffer first.
      *
      * Returns 0 on success or -errno on error.
+     *
+     * XXX: This function is deprecated.  It will continue to work for some
+     * time for binary compatibility, but it is essentially a no-op, and calls
+     * to it should be removed.
      */
-    int     (*lockBuffer)(struct ANativeWindow* window,
+    int     (*lockBuffer_DEPRECATED)(struct ANativeWindow* window,
                 struct ANativeWindowBuffer* buffer);
+
     /*
      * Hook called by EGL when modifications to the render buffer are done.
      * This unlocks and post the buffer.
@@ -405,8 +426,13 @@
      * Buffers MUST be queued in the same order than they were dequeued.
      *
      * Returns 0 on success or -errno on error.
+     *
+     * XXX: This function is deprecated.  It will continue to work for some
+     * time for binary compatibility, but the new queueBuffer function that
+     * takes a fence file descriptor should be used in its place (pass a value
+     * of -1 for the fence file descriptor if there is no valid one to pass).
      */
-    int     (*queueBuffer)(struct ANativeWindow* window,
+    int     (*queueBuffer_DEPRECATED)(struct ANativeWindow* window,
                 struct ANativeWindowBuffer* buffer);
 
     /*
@@ -463,12 +489,86 @@
      * reference if they might use the buffer after queueing or canceling it.
      * Holding a reference to a buffer after queueing or canceling it is only
      * allowed if a specific buffer count has been set.
+     *
+     * XXX: This function is deprecated.  It will continue to work for some
+     * time for binary compatibility, but the new cancelBuffer function that
+     * takes a fence file descriptor should be used in its place (pass a value
+     * of -1 for the fence file descriptor if there is no valid one to pass).
      */
-    int     (*cancelBuffer)(struct ANativeWindow* window,
+    int     (*cancelBuffer_DEPRECATED)(struct ANativeWindow* window,
                 struct ANativeWindowBuffer* buffer);
 
+    /*
+     * Hook called by EGL to acquire a buffer. This call may block if no
+     * buffers are available.
+     *
+     * The window holds a reference to the buffer between dequeueBuffer and
+     * either queueBuffer or cancelBuffer, so clients only need their own
+     * reference if they might use the buffer after queueing or canceling it.
+     * Holding a reference to a buffer after queueing or canceling it is only
+     * allowed if a specific buffer count has been set.
+     *
+     * The libsync fence file descriptor returned in the int pointed to by the
+     * fenceFd argument will refer to the fence that must signal before the
+     * dequeued buffer may be written to.  A value of -1 indicates that the
+     * caller may access the buffer immediately without waiting on a fence.  If
+     * a valid file descriptor is returned (i.e. any value except -1) then the
+     * caller is responsible for closing the file descriptor.
+     *
+     * Returns 0 on success or -errno on error.
+     */
+    int     (*dequeueBuffer)(struct ANativeWindow* window,
+                struct ANativeWindowBuffer** buffer, int* fenceFd);
 
-    void* reserved_proc[2];
+    /*
+     * Hook called by EGL when modifications to the render buffer are done.
+     * This unlocks and post the buffer.
+     *
+     * The window holds a reference to the buffer between dequeueBuffer and
+     * either queueBuffer or cancelBuffer, so clients only need their own
+     * reference if they might use the buffer after queueing or canceling it.
+     * Holding a reference to a buffer after queueing or canceling it is only
+     * allowed if a specific buffer count has been set.
+     *
+     * The fenceFd argument specifies a libsync fence file descriptor for a
+     * fence that must signal before the buffer can be accessed.  If the buffer
+     * can be accessed immediately then a value of -1 should be used.  The
+     * caller must not use the file descriptor after it is passed to
+     * queueBuffer, and the ANativeWindow implementation is responsible for
+     * closing it.
+     *
+     * Returns 0 on success or -errno on error.
+     */
+    int     (*queueBuffer)(struct ANativeWindow* window,
+                struct ANativeWindowBuffer* buffer, int fenceFd);
+
+    /*
+     * Hook used to cancel a buffer that has been dequeued.
+     * No synchronization is performed between dequeue() and cancel(), so
+     * either external synchronization is needed, or these functions must be
+     * called from the same thread.
+     *
+     * The window holds a reference to the buffer between dequeueBuffer and
+     * either queueBuffer or cancelBuffer, so clients only need their own
+     * reference if they might use the buffer after queueing or canceling it.
+     * Holding a reference to a buffer after queueing or canceling it is only
+     * allowed if a specific buffer count has been set.
+     *
+     * The fenceFd argument specifies a libsync fence file decsriptor for a
+     * fence that must signal before the buffer can be accessed.  If the buffer
+     * can be accessed immediately then a value of -1 should be used.
+     *
+     * Note that if the client has not waited on the fence that was returned
+     * from dequeueBuffer, that same fence should be passed to cancelBuffer to
+     * ensure that future uses of the buffer are preceded by a wait on that
+     * fence.  The caller must not use the file descriptor after it is passed
+     * to cancelBuffer, and the ANativeWindow implementation is responsible for
+     * closing it.
+     *
+     * Returns 0 on success or -errno on error.
+     */
+    int     (*cancelBuffer)(struct ANativeWindow* window,
+                struct ANativeWindowBuffer* buffer, int fenceFd);
 };
 
  /* Backwards compatibility: use ANativeWindow (struct ANativeWindow in C).
@@ -551,7 +651,7 @@
 /*
  * native_window_set_active_rect(..., active_rect)
  *
- * This function is deprectated and will be removed soon.  For now it simply
+ * This function is deprecated and will be removed soon.  For now it simply
  * sets the post-transform crop for compatibility while multi-project commits
  * get checked.
  */
@@ -717,6 +817,17 @@
     return window->perform(window, NATIVE_WINDOW_API_DISCONNECT, api);
 }
 
+/*
+ * native_window_dequeue_buffer_and_wait(...)
+ * Dequeue a buffer and wait on the fence associated with that buffer.  The
+ * buffer may safely be accessed immediately upon this function returning.  An
+ * error is returned if either of the dequeue or the wait operations fail.
+ */
+static inline int native_window_dequeue_buffer_and_wait(ANativeWindow *anw,
+        struct ANativeWindowBuffer** anb) {
+    return anw->dequeueBuffer_DEPRECATED(anw, anb);
+}
+
 
 __END_DECLS
 
diff --git a/init/Android.mk b/init/Android.mk
index 7dae9df..a1c1e7a 100644
--- a/init/Android.mk
+++ b/init/Android.mk
@@ -15,7 +15,8 @@
 	signal_handler.c \
 	init_parser.c \
 	ueventd.c \
-	ueventd_parser.c
+	ueventd_parser.c \
+	watchdogd.c
 
 ifeq ($(strip $(INIT_BOOTCHART)),true)
 LOCAL_SRC_FILES += bootchart.c
@@ -42,8 +43,11 @@
 
 include $(BUILD_EXECUTABLE)
 
-# Make a symlink from /sbin/ueventd to /init
-SYMLINKS := $(TARGET_ROOT_OUT)/sbin/ueventd
+# Make a symlink from /sbin/ueventd and /sbin/watchdogd to /init
+SYMLINKS := \
+	$(TARGET_ROOT_OUT)/sbin/ueventd \
+	$(TARGET_ROOT_OUT)/sbin/watchdogd
+
 $(SYMLINKS): INIT_BINARY := $(LOCAL_MODULE)
 $(SYMLINKS): $(LOCAL_INSTALLED_MODULE) $(LOCAL_PATH)/Android.mk
 	@echo "Symlink: $@ -> ../$(INIT_BINARY)"
diff --git a/init/builtins.c b/init/builtins.c
index 882ceb5..aaf85d9 100644
--- a/init/builtins.c
+++ b/init/builtins.c
@@ -322,6 +322,14 @@
         if (_chown(args[1], uid, gid) < 0) {
             return -errno;
         }
+
+        /* chown may have cleared S_ISUID and S_ISGID, chmod again */
+        if (mode & (S_ISUID | S_ISGID)) {
+            ret = _chmod(args[1], mode);
+            if (ret == -1) {
+                return -errno;
+            }
+        }
     }
 
     return 0;
@@ -339,6 +347,12 @@
     { "ro",         MS_RDONLY },
     { "rw",         0 },
     { "remount",    MS_REMOUNT },
+    { "bind",       MS_BIND },
+    { "rec",        MS_REC },
+    { "unbindable", MS_UNBINDABLE },
+    { "private",    MS_PRIVATE },
+    { "slave",      MS_SLAVE },
+    { "shared",     MS_SHARED },
     { "defaults",   0 },
     { 0,            0 },
 };
diff --git a/init/devices.c b/init/devices.c
index e43dbaf..c30303f 100644
--- a/init/devices.c
+++ b/init/devices.c
@@ -51,6 +51,7 @@
 #define SYSFS_PREFIX    "/sys"
 #define FIRMWARE_DIR1   "/etc/firmware"
 #define FIRMWARE_DIR2   "/vendor/firmware"
+#define FIRMWARE_DIR3   "/firmware/image"
 
 #ifdef HAVE_SELINUX
 extern struct selabel_handle *sehandle;
@@ -638,7 +639,7 @@
 
 static void handle_device_event(struct uevent *uevent)
 {
-    if (!strcmp(uevent->action,"add"))
+    if (!strcmp(uevent->action,"add") || !strcmp(uevent->action, "change"))
         fixup_sys_perms(uevent->path);
 
     if (!strncmp(uevent->subsystem, "block", 5)) {
@@ -703,7 +704,7 @@
 
 static void process_firmware_event(struct uevent *uevent)
 {
-    char *root, *loading, *data, *file1 = NULL, *file2 = NULL;
+    char *root, *loading, *data, *file1 = NULL, *file2 = NULL, *file3 = NULL;
     int l, loading_fd, data_fd, fw_fd;
     int booting = is_booting();
 
@@ -730,6 +731,10 @@
     if (l == -1)
         goto data_free_out;
 
+    l = asprintf(&file3, FIRMWARE_DIR3"/%s", uevent->firmware);
+    if (l == -1)
+        goto data_free_out;
+
     loading_fd = open(loading, O_WRONLY);
     if(loading_fd < 0)
         goto file_free_out;
@@ -743,17 +748,20 @@
     if(fw_fd < 0) {
         fw_fd = open(file2, O_RDONLY);
         if (fw_fd < 0) {
-            if (booting) {
-                    /* If we're not fully booted, we may be missing
-                     * filesystems needed for firmware, wait and retry.
-                     */
-                usleep(100000);
-                booting = is_booting();
-                goto try_loading_again;
+            fw_fd = open(file3, O_RDONLY);
+            if (fw_fd < 0) {
+                if (booting) {
+                        /* If we're not fully booted, we may be missing
+                         * filesystems needed for firmware, wait and retry.
+                         */
+                    usleep(100000);
+                    booting = is_booting();
+                    goto try_loading_again;
+                }
+                INFO("firmware: could not open '%s' %d\n", uevent->firmware, errno);
+                write(loading_fd, "-1", 2);
+                goto data_close_out;
             }
-            INFO("firmware: could not open '%s' %d\n", uevent->firmware, errno);
-            write(loading_fd, "-1", 2);
-            goto data_close_out;
         }
     }
 
diff --git a/init/init.c b/init/init.c
index b2e39bd..1c80d9c 100755
--- a/init/init.c
+++ b/init/init.c
@@ -31,6 +31,7 @@
 #include <sys/types.h>
 #include <sys/socket.h>
 #include <sys/un.h>
+#include <sys/personality.h>
 
 #ifdef HAVE_SELINUX
 #include <selinux/selinux.h>
@@ -58,6 +59,7 @@
 #include "init_parser.h"
 #include "util.h"
 #include "ueventd.h"
+#include "watchdogd.h"
 
 #ifdef HAVE_SELINUX
 struct selabel_handle *sehandle;
@@ -241,6 +243,21 @@
         int fd, sz;
 
         umask(077);
+#ifdef __arm__
+        /*
+         * b/7188322 - Temporarily revert to the compat memory layout
+         * to avoid breaking third party apps.
+         *
+         * THIS WILL GO AWAY IN A FUTURE ANDROID RELEASE.
+         *
+         * http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commitdiff;h=7dbaa466
+         * changes the kernel mapping from bottom up to top-down.
+         * This breaks some programs which improperly embed
+         * an out of date copy of Android's linker.
+         */
+        int current = personality(0xffffFFFF);
+        personality(current | ADDR_COMPAT_LAYOUT);
+#endif
         if (properties_inited()) {
             get_property_workspace(&fd, &sz);
             sprintf(tmp, "%d,%d", dup(fd), sz);
@@ -831,6 +848,9 @@
     if (!strcmp(basename(argv[0]), "ueventd"))
         return ueventd_main(argc, argv);
 
+    if (!strcmp(basename(argv[0]), "watchdogd"))
+        return watchdogd_main(argc, argv);
+
     /* clear the umask */
     umask(0);
 
diff --git a/init/property_service.c b/init/property_service.c
old mode 100644
new mode 100755
index c6c2e3f..01a4d17
--- a/init/property_service.c
+++ b/init/property_service.c
@@ -81,6 +81,7 @@
     { "sys.",             AID_SYSTEM,   0 },
     { "service.",         AID_SYSTEM,   0 },
     { "wlan.",            AID_SYSTEM,   0 },
+    { "bluetooth.",       AID_BLUETOOTH,   0 },
     { "dhcp.",            AID_SYSTEM,   0 },
     { "dhcp.",            AID_DHCP,     0 },
     { "debug.",           AID_SYSTEM,   0 },
@@ -91,6 +92,7 @@
     { "persist.sys.",     AID_SYSTEM,   0 },
     { "persist.service.", AID_SYSTEM,   0 },
     { "persist.security.", AID_SYSTEM,   0 },
+    { "persist.service.bdroid.", AID_BLUETOOTH,   0 },
     { "selinux."         , AID_SYSTEM,   0 },
     { NULL, 0, 0 }
 };
@@ -600,6 +602,16 @@
     return property_area_inited;
 }
 
+static void load_override_properties() {
+#ifdef ALLOW_LOCAL_PROP_OVERRIDE
+    const char *debuggable = property_get("ro.debuggable");
+    if (debuggable && (strcmp(debuggable, "1") == 0)) {
+        load_properties_from_file(PROP_PATH_LOCAL_OVERRIDE);
+    }
+#endif /* ALLOW_LOCAL_PROP_OVERRIDE */
+}
+
+
 /* When booting an encrypted system, /data is not mounted when the
  * property service is started, so any properties stored there are
  * not loaded.  Vold triggers init to load these properties once it
@@ -607,9 +619,7 @@
  */
 void load_persist_props(void)
 {
-#ifdef ALLOW_LOCAL_PROP_OVERRIDE
-    load_properties_from_file(PROP_PATH_LOCAL_OVERRIDE);
-#endif /* ALLOW_LOCAL_PROP_OVERRIDE */
+    load_override_properties();
     /* Read persistent properties after all default values have been loaded. */
     load_persistent_properties();
 }
@@ -620,9 +630,7 @@
 
     load_properties_from_file(PROP_PATH_SYSTEM_BUILD);
     load_properties_from_file(PROP_PATH_SYSTEM_DEFAULT);
-#ifdef ALLOW_LOCAL_PROP_OVERRIDE
-    load_properties_from_file(PROP_PATH_LOCAL_OVERRIDE);
-#endif /* ALLOW_LOCAL_PROP_OVERRIDE */
+    load_override_properties();
     /* Read persistent properties after all default values have been loaded. */
     load_persistent_properties();
 
diff --git a/init/ueventd.c b/init/ueventd.c
index a89e067..a41c31e 100644
--- a/init/ueventd.c
+++ b/init/ueventd.c
@@ -105,7 +105,7 @@
     for (i = 0; i < ARRAY_SIZE(android_ids); i++)
         if (!strcmp(id, android_ids[i].name))
             return android_ids[i].aid;
-    return 0;
+    return -1;
 }
 
 void set_device_permission(int nargs, char **args)
diff --git a/init/watchdogd.c b/init/watchdogd.c
new file mode 100644
index 0000000..fb53836
--- /dev/null
+++ b/init/watchdogd.c
@@ -0,0 +1,77 @@
+/*
+ * Copyright (C) 2012 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <errno.h>
+#include <fcntl.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include <linux/watchdog.h>
+
+#include "log.h"
+#include "util.h"
+
+#define DEV_NAME "/dev/watchdog"
+
+int watchdogd_main(int argc, char **argv)
+{
+    int fd;
+    int ret;
+    int interval = 10;
+    int margin = 10;
+    int timeout;
+
+    open_devnull_stdio();
+    klog_init();
+
+    INFO("Starting watchdogd\n");
+
+    if (argc >= 2)
+        interval = atoi(argv[1]);
+
+    if (argc >= 3)
+        margin = atoi(argv[2]);
+
+    timeout = interval + margin;
+
+    fd = open(DEV_NAME, O_RDWR);
+    if (fd < 0) {
+        ERROR("watchdogd: Failed to open %s: %s\n", DEV_NAME, strerror(errno));
+        return 1;
+    }
+
+    ret = ioctl(fd, WDIOC_SETTIMEOUT, &timeout);
+    if (ret) {
+        ERROR("watchdogd: Failed to set timeout to %d: %s\n", timeout, strerror(errno));
+        ret = ioctl(fd, WDIOC_GETTIMEOUT, &timeout);
+        if (ret) {
+            ERROR("watchdogd: Failed to get timeout: %s\n", strerror(errno));
+        } else {
+            if (timeout > margin)
+                interval = timeout - margin;
+            else
+                interval = 1;
+            ERROR("watchdogd: Adjusted interval to timeout returned by driver: timeout %d, interval %d, margin %d\n",
+                  timeout, interval, margin);
+        }
+    }
+
+    while(1) {
+        write(fd, "", 1);
+        sleep(interval);
+    }
+}
+
diff --git a/init/watchdogd.h b/init/watchdogd.h
new file mode 100644
index 0000000..8b48ab8
--- /dev/null
+++ b/init/watchdogd.h
@@ -0,0 +1,22 @@
+/*
+ * Copyright (C) 2012 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef _INIT_WATCHDOGD_H_
+#define _INIT_WATCHDOGD_H_
+
+int watchdogd_main(int argc, char **argv);
+
+#endif
diff --git a/libcorkscrew/Android.mk b/libcorkscrew/Android.mk
index aace5f8..2786d8f 100644
--- a/libcorkscrew/Android.mk
+++ b/libcorkscrew/Android.mk
@@ -14,9 +14,7 @@
 
 LOCAL_PATH:= $(call my-dir)
 
-include $(CLEAR_VARS)
-
-LOCAL_SRC_FILES := \
+generic_src_files := \
 	backtrace.c \
 	backtrace-helper.c \
 	demangle.c \
@@ -24,16 +22,24 @@
 	ptrace.c \
 	symbol_table.c
 
-ifeq ($(TARGET_ARCH),arm)
-LOCAL_SRC_FILES += \
+arm_src_files := \
 	arch-arm/backtrace-arm.c \
 	arch-arm/ptrace-arm.c
+
+x86_src_files := \
+	arch-x86/backtrace-x86.c \
+	arch-x86/ptrace-x86.c
+
+include $(CLEAR_VARS)
+
+LOCAL_SRC_FILES := $(generic_src_files)
+
+ifeq ($(TARGET_ARCH),arm)
+LOCAL_SRC_FILES += $(arm_src_files)
 LOCAL_CFLAGS += -DCORKSCREW_HAVE_ARCH
 endif
 ifeq ($(TARGET_ARCH),x86)
-LOCAL_SRC_FILES += \
-	arch-x86/backtrace-x86.c \
-	arch-x86/ptrace-x86.c
+LOCAL_SRC_FILES += $(x86_src_files)
 LOCAL_CFLAGS += -DCORKSCREW_HAVE_ARCH
 endif
 ifeq ($(TARGET_ARCH),mips)
@@ -50,3 +56,38 @@
 LOCAL_MODULE_TAGS := optional
 
 include $(BUILD_SHARED_LIBRARY)
+
+# Build test.
+include $(CLEAR_VARS)
+LOCAL_SRC_FILES := test.c
+LOCAL_CFLAGS += -std=gnu99 -Werror -fno-inline-small-functions
+LOCAL_SHARED_LIBRARIES := libcorkscrew
+LOCAL_MODULE := libcorkscrew_test
+LOCAL_MODULE_TAGS := optional
+include $(BUILD_EXECUTABLE)
+
+
+ifeq ($(HOST_OS)-$(HOST_ARCH),linux-x86)
+
+# Build libcorkscrew.
+include $(CLEAR_VARS)
+LOCAL_SRC_FILES += $(generic_src_files) $(x86_src_files)
+LOCAL_CFLAGS += -DCORKSCREW_HAVE_ARCH
+LOCAL_SHARED_LIBRARIES += libgccdemangle
+LOCAL_STATIC_LIBRARIES += libcutils
+LOCAL_LDLIBS += -ldl -lrt
+LOCAL_CFLAGS += -std=gnu99 -Werror
+LOCAL_MODULE := libcorkscrew
+LOCAL_MODULE_TAGS := optional
+include $(BUILD_HOST_SHARED_LIBRARY)
+
+# Build test.
+include $(CLEAR_VARS)
+LOCAL_SRC_FILES := test.c
+LOCAL_CFLAGS += -std=gnu99 -Werror -fno-inline-small-functions
+LOCAL_SHARED_LIBRARIES := libcorkscrew
+LOCAL_MODULE := libcorkscrew_test
+LOCAL_MODULE_TAGS := optional
+include $(BUILD_HOST_EXECUTABLE)
+
+endif # linux-x86
diff --git a/libcorkscrew/arch-x86/backtrace-x86.c b/libcorkscrew/arch-x86/backtrace-x86.c
index 082f635..fb79a0c 100644
--- a/libcorkscrew/arch-x86/backtrace-x86.c
+++ b/libcorkscrew/arch-x86/backtrace-x86.c
@@ -31,10 +31,19 @@
 #include <limits.h>
 #include <errno.h>
 #include <sys/ptrace.h>
-#include <sys/exec_elf.h>
 #include <cutils/log.h>
 
-#if !defined(__BIONIC_HAVE_UCONTEXT_T)
+#if defined(__BIONIC__)
+
+#if defined(__BIONIC_HAVE_UCONTEXT_T)
+
+// Bionic offers the Linux kernel headers.
+#include <asm/sigcontext.h>
+#include <asm/ucontext.h>
+typedef struct ucontext ucontext_t;
+
+#else /* __BIONIC_HAVE_UCONTEXT_T */
+
 /* Old versions of the Android <signal.h> didn't define ucontext_t. */
 
 typedef struct {
@@ -60,7 +69,16 @@
     mcontext_t uc_mcontext;
     uint32_t uc_sigmask;
 } ucontext_t;
-#endif /* !__BIONIC_HAVE_UCONTEXT_T */
+
+#endif /* __BIONIC_HAVE_UCONTEXT_T */
+
+#else /* __BIONIC__ */
+
+// glibc has its own renaming of the Linux kernel's structures.
+#define __USE_GNU // For REG_EBP, REG_ESP, and REG_EIP.
+#include <ucontext.h>
+
+#endif /* __ BIONIC__ */
 
 /* Unwind state. */
 typedef struct {
@@ -111,8 +129,8 @@
 
     unwind_state_t state;
     state.ebp = uc->uc_mcontext.gregs[REG_EBP];
-    state.eip = uc->uc_mcontext.gregs[REG_EIP];
     state.esp = uc->uc_mcontext.gregs[REG_ESP];
+    state.eip = uc->uc_mcontext.gregs[REG_EIP];
 
     memory_t memory;
     init_memory(&memory, map_info_list);
diff --git a/libcorkscrew/backtrace.c b/libcorkscrew/backtrace.c
index e57f428..3697d18 100644
--- a/libcorkscrew/backtrace.c
+++ b/libcorkscrew/backtrace.c
@@ -27,16 +27,41 @@
 
 #include <unistd.h>
 #include <signal.h>
+#include <stdlib.h>
+#include <string.h>
 #include <pthread.h>
 #include <unwind.h>
-#include <sys/exec_elf.h>
 #include <cutils/log.h>
 #include <cutils/atomic.h>
+#include <elf.h>
 
 #if HAVE_DLADDR
+#define __USE_GNU // For dladdr(3) in glibc.
 #include <dlfcn.h>
 #endif
 
+#if defined(__BIONIC__)
+
+// Bionic implements and exports gettid but only implements tgkill.
+extern int tgkill(int tgid, int tid, int sig);
+
+#else
+
+// glibc doesn't implement or export either gettid or tgkill.
+
+#include <unistd.h>
+#include <sys/syscall.h>
+
+static pid_t gettid() {
+  return syscall(__NR_gettid);
+}
+
+static int tgkill(int tgid, int tid, int sig) {
+  return syscall(__NR_tgkill, tgid, tid, sig);
+}
+
+#endif
+
 typedef struct {
     backtrace_frame_t* backtrace;
     size_t ignore_depth;
@@ -115,8 +140,6 @@
 }
 #endif
 
-extern int tgkill(int tgid, int tid, int sig);
-
 ssize_t unwind_backtrace_thread(pid_t tid, backtrace_frame_t* backtrace,
         size_t ignore_depth, size_t max_depth) {
     if (tid == gettid()) {
diff --git a/libcorkscrew/map_info.c b/libcorkscrew/map_info.c
index f33378f..3c52854 100644
--- a/libcorkscrew/map_info.c
+++ b/libcorkscrew/map_info.c
@@ -21,6 +21,7 @@
 
 #include <ctype.h>
 #include <stdio.h>
+#include <stdlib.h>
 #include <string.h>
 #include <limits.h>
 #include <pthread.h>
diff --git a/libcorkscrew/ptrace.c b/libcorkscrew/ptrace.c
index cbea8ca..6496d5e 100644
--- a/libcorkscrew/ptrace.c
+++ b/libcorkscrew/ptrace.c
@@ -21,6 +21,7 @@
 #include <corkscrew/ptrace.h>
 
 #include <errno.h>
+#include <stdlib.h>
 #include <sys/ptrace.h>
 #include <cutils/log.h>
 
diff --git a/libcorkscrew/symbol_table.c b/libcorkscrew/symbol_table.c
index 1b97180..29e4a79 100644
--- a/libcorkscrew/symbol_table.c
+++ b/libcorkscrew/symbol_table.c
@@ -19,14 +19,22 @@
 
 #include <corkscrew/symbol_table.h>
 
+#include <stdbool.h>
 #include <stdlib.h>
+#include <elf.h>
 #include <fcntl.h>
 #include <string.h>
 #include <sys/stat.h>
 #include <sys/mman.h>
-#include <sys/exec_elf.h>
 #include <cutils/log.h>
 
+static bool is_elf(Elf32_Ehdr* e) {
+    return (e->e_ident[EI_MAG0] == ELFMAG0 &&
+            e->e_ident[EI_MAG1] == ELFMAG1 &&
+            e->e_ident[EI_MAG2] == ELFMAG2 &&
+            e->e_ident[EI_MAG3] == ELFMAG3);
+}
+
 // Compare function for qsort
 static int qcompar(const void *a, const void *b) {
     const symbol_t* asym = (const symbol_t*)a;
@@ -67,7 +75,7 @@
 
     // Parse the file header
     Elf32_Ehdr *hdr = (Elf32_Ehdr*)base;
-    if (!IS_ELF(*hdr)) {
+    if (!is_elf(hdr)) {
         goto out_close;
     }
     Elf32_Shdr *shdr = (Elf32_Shdr*)(base + hdr->e_shoff);
diff --git a/libcorkscrew/test.c b/libcorkscrew/test.c
new file mode 100644
index 0000000..af34c03
--- /dev/null
+++ b/libcorkscrew/test.c
@@ -0,0 +1,64 @@
+#include <corkscrew/backtrace.h>
+#include <corkscrew/symbol_table.h>
+#include <stdio.h>
+#include <stdlib.h>
+
+void do_backtrace() {
+  const size_t MAX_DEPTH = 32;
+  backtrace_frame_t* frames = (backtrace_frame_t*) malloc(sizeof(backtrace_frame_t) * MAX_DEPTH);
+  ssize_t frame_count = unwind_backtrace(frames, 0, MAX_DEPTH);
+  fprintf(stderr, "frame_count=%d\n", (int) frame_count);
+
+  backtrace_symbol_t* backtrace_symbols = (backtrace_symbol_t*) malloc(sizeof(backtrace_symbol_t) * frame_count);
+  get_backtrace_symbols(frames, frame_count, backtrace_symbols);
+
+  for (size_t i = 0; i < (size_t) frame_count; ++i) {
+    char line[MAX_BACKTRACE_LINE_LENGTH];
+    format_backtrace_line(i, &frames[i], &backtrace_symbols[i],
+                          line, MAX_BACKTRACE_LINE_LENGTH);
+    if (backtrace_symbols[i].symbol_name != NULL) {
+      // get_backtrace_symbols found the symbol's name with dladdr(3).
+      fprintf(stderr, "  %s\n", line);
+    } else {
+      // We don't have a symbol. Maybe this is a static symbol, and
+      // we can look it up?
+      symbol_table_t* symbols = NULL;
+      if (backtrace_symbols[i].map_name != NULL) {
+        symbols = load_symbol_table(backtrace_symbols[i].map_name);
+      }
+      const symbol_t* symbol = NULL;
+      if (symbols != NULL) {
+        symbol = find_symbol(symbols, frames[i].absolute_pc);
+      }
+      if (symbol != NULL) {
+        uintptr_t offset = frames[i].absolute_pc - symbol->start;
+        fprintf(stderr, "  %s (%s%+d)\n", line, symbol->name, offset);
+      } else {
+        fprintf(stderr, "  %s (\?\?\?)\n", line);
+      }
+      free_symbol_table(symbols);
+    }
+  }
+
+  free_backtrace_symbols(backtrace_symbols, frame_count);
+  free(backtrace_symbols);
+  free(frames);
+}
+
+__attribute__ ((noinline)) void g() {
+  fprintf(stderr, "g()\n");
+  do_backtrace();
+}
+
+__attribute__ ((noinline)) int f(int i) {
+  fprintf(stderr, "f(%i)\n", i);
+  if (i == 0) {
+    g();
+    return 0;
+  }
+  return f(i - 1);
+}
+
+int main() {
+  return f(5);
+}
diff --git a/libcutils/Android.mk b/libcutils/Android.mk
index da8e149..d9bd8d8 100644
--- a/libcutils/Android.mk
+++ b/libcutils/Android.mk
@@ -50,7 +50,7 @@
 	threads.c \
 	sched_policy.c \
 	iosched_policy.c \
-	str_parms.c
+	str_parms.c \
 
 commonHostSources := \
         ashmem-host.c
@@ -75,8 +75,14 @@
 else
     commonSources += \
         abort_socket.c \
+        fs.c \
         selector.c \
+        tztime.c \
+        multiuser.c \
         zygote.c
+
+    commonHostSources += \
+        tzstrftime.c
 endif
 
 
diff --git a/libcutils/fs.c b/libcutils/fs.c
new file mode 100644
index 0000000..1226d44
--- /dev/null
+++ b/libcutils/fs.c
@@ -0,0 +1,142 @@
+/*
+ * Copyright (C) 2012 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#define LOG_TAG "cutils"
+
+#include <cutils/fs.h>
+#include <cutils/log.h>
+
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+#include <unistd.h>
+#include <errno.h>
+#include <string.h>
+#include <limits.h>
+
+#define ALL_PERMS (S_ISUID | S_ISGID | S_ISVTX | S_IRWXU | S_IRWXG | S_IRWXO)
+#define BUF_SIZE 64
+
+int fs_prepare_dir(const char* path, mode_t mode, uid_t uid, gid_t gid) {
+    // Check if path needs to be created
+    struct stat sb;
+    if (TEMP_FAILURE_RETRY(lstat(path, &sb)) == -1) {
+        if (errno == ENOENT) {
+            goto create;
+        } else {
+            ALOGE("Failed to lstat(%s): %s", path, strerror(errno));
+            return -1;
+        }
+    }
+
+    // Exists, verify status
+    if (!S_ISDIR(sb.st_mode)) {
+        ALOGE("Not a directory: %s", path);
+        return -1;
+    }
+    if (((sb.st_mode & ALL_PERMS) == mode) && (sb.st_uid == uid) && (sb.st_gid == gid)) {
+        return 0;
+    } else {
+        goto fixup;
+    }
+
+create:
+    if (TEMP_FAILURE_RETRY(mkdir(path, mode)) == -1) {
+        if (errno != EEXIST) {
+            ALOGE("Failed to mkdir(%s): %s", path, strerror(errno));
+            return -1;
+        }
+    }
+
+fixup:
+    if (TEMP_FAILURE_RETRY(chmod(path, mode)) == -1) {
+        ALOGE("Failed to chmod(%s, %d): %s", path, mode, strerror(errno));
+        return -1;
+    }
+    if (TEMP_FAILURE_RETRY(chown(path, uid, gid)) == -1) {
+        ALOGE("Failed to chown(%s, %d, %d): %s", path, uid, gid, strerror(errno));
+        return -1;
+    }
+
+    return 0;
+}
+
+int fs_read_atomic_int(const char* path, int* out_value) {
+    int fd = TEMP_FAILURE_RETRY(open(path, O_RDONLY));
+    if (fd == -1) {
+        ALOGE("Failed to read %s: %s", path, strerror(errno));
+        return -1;
+    }
+
+    char buf[BUF_SIZE];
+    if (TEMP_FAILURE_RETRY(read(fd, buf, BUF_SIZE)) == -1) {
+        ALOGE("Failed to read %s: %s", path, strerror(errno));
+        goto fail;
+    }
+    if (sscanf(buf, "%d", out_value) != 1) {
+        ALOGE("Failed to parse %s: %s", path, strerror(errno));
+        goto fail;
+    }
+    close(fd);
+    return 0;
+
+fail:
+    close(fd);
+    *out_value = -1;
+    return -1;
+}
+
+int fs_write_atomic_int(const char* path, int value) {
+    char temp[PATH_MAX];
+    if (snprintf(temp, PATH_MAX, "%s.XXXXXX", path) >= PATH_MAX) {
+        ALOGE("Path too long");
+        return -1;
+    }
+
+    int fd = TEMP_FAILURE_RETRY(mkstemp(temp));
+    if (fd == -1) {
+        ALOGE("Failed to open %s: %s", temp, strerror(errno));
+        return -1;
+    }
+
+    char buf[BUF_SIZE];
+    int len = snprintf(buf, BUF_SIZE, "%d", value) + 1;
+    if (len > BUF_SIZE) {
+        ALOGE("Value %d too large: %s", value, strerror(errno));
+        goto fail;
+    }
+    if (TEMP_FAILURE_RETRY(write(fd, buf, len)) < len) {
+        ALOGE("Failed to write %s: %s", temp, strerror(errno));
+        goto fail;
+    }
+    if (close(fd) == -1) {
+        ALOGE("Failed to close %s: %s", temp, strerror(errno));
+        goto fail_closed;
+    }
+
+    if (rename(temp, path) == -1) {
+        ALOGE("Failed to rename %s to %s: %s", temp, path, strerror(errno));
+        goto fail_closed;
+    }
+
+    return 0;
+
+fail:
+    close(fd);
+fail_closed:
+    unlink(temp);
+    return -1;
+}
diff --git a/libcutils/multiuser.c b/libcutils/multiuser.c
new file mode 100644
index 0000000..7c74bb8
--- /dev/null
+++ b/libcutils/multiuser.c
@@ -0,0 +1,29 @@
+/*
+ * Copyright (C) 2012 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <cutils/multiuser.h>
+
+userid_t multiuser_get_user_id(uid_t uid) {
+    return uid / MULTIUSER_APP_PER_USER_RANGE;
+}
+
+appid_t multiuser_get_app_id(uid_t uid) {
+    return uid % MULTIUSER_APP_PER_USER_RANGE;
+}
+
+uid_t multiuser_get_uid(userid_t userId, appid_t appId) {
+    return userId * MULTIUSER_APP_PER_USER_RANGE + (appId % MULTIUSER_APP_PER_USER_RANGE);
+}
diff --git a/libcutils/private.h b/libcutils/private.h
new file mode 100644
index 0000000..2837b70
--- /dev/null
+++ b/libcutils/private.h
@@ -0,0 +1,368 @@
+#ifndef PRIVATE_H
+
+#define PRIVATE_H
+
+/*
+** This file is in the public domain, so clarified as of
+** 1996-06-05 by Arthur David Olson.
+*/
+
+/*
+** This header is for use ONLY with the time conversion code.
+** There is no guarantee that it will remain unchanged,
+** or that it will remain at all.
+** Do NOT copy it to any system include directory.
+** Thank you!
+*/
+
+/*
+** ID
+*/
+
+#ifndef lint
+#ifndef NOID
+static char	privatehid[] = "@(#)private.h	8.2";
+#endif /* !defined NOID */
+#endif /* !defined lint */
+
+#define GRANDPARENTED	"Local time zone must be set--see zic manual page"
+
+/*
+** Defaults for preprocessor symbols.
+** You can override these in your C compiler options, e.g. `-DHAVE_ADJTIME=0'.
+*/
+
+#ifndef HAVE_ADJTIME
+#define HAVE_ADJTIME		1
+#endif /* !defined HAVE_ADJTIME */
+
+#ifndef HAVE_GETTEXT
+#define HAVE_GETTEXT		0
+#endif /* !defined HAVE_GETTEXT */
+
+#ifndef HAVE_INCOMPATIBLE_CTIME_R
+#define HAVE_INCOMPATIBLE_CTIME_R	0
+#endif /* !defined INCOMPATIBLE_CTIME_R */
+
+#ifndef HAVE_SETTIMEOFDAY
+#define HAVE_SETTIMEOFDAY	3
+#endif /* !defined HAVE_SETTIMEOFDAY */
+
+#ifndef HAVE_STRERROR
+#define HAVE_STRERROR		1
+#endif /* !defined HAVE_STRERROR */
+
+#ifndef HAVE_SYMLINK
+#define HAVE_SYMLINK		1
+#endif /* !defined HAVE_SYMLINK */
+
+#ifndef HAVE_SYS_STAT_H
+#define HAVE_SYS_STAT_H		1
+#endif /* !defined HAVE_SYS_STAT_H */
+
+#ifndef HAVE_SYS_WAIT_H
+#define HAVE_SYS_WAIT_H		1
+#endif /* !defined HAVE_SYS_WAIT_H */
+
+#ifndef HAVE_UNISTD_H
+#define HAVE_UNISTD_H		1
+#endif /* !defined HAVE_UNISTD_H */
+
+#ifndef HAVE_UTMPX_H
+#define HAVE_UTMPX_H		0
+#endif /* !defined HAVE_UTMPX_H */
+
+#ifndef LOCALE_HOME
+#define LOCALE_HOME		"/usr/lib/locale"
+#endif /* !defined LOCALE_HOME */
+
+#if HAVE_INCOMPATIBLE_CTIME_R
+#define asctime_r _incompatible_asctime_r
+#define ctime_r _incompatible_ctime_r
+#endif /* HAVE_INCOMPATIBLE_CTIME_R */
+
+/*
+** Nested includes
+*/
+
+#include "sys/types.h"	/* for time_t */
+#include "stdio.h"
+#include "errno.h"
+#include "string.h"
+#include "limits.h"	/* for CHAR_BIT et al. */
+#include "time.h"
+#include "stdlib.h"
+
+#if HAVE_GETTEXT
+#include "libintl.h"
+#endif /* HAVE_GETTEXT */
+
+#if HAVE_SYS_WAIT_H
+#include <sys/wait.h>	/* for WIFEXITED and WEXITSTATUS */
+#endif /* HAVE_SYS_WAIT_H */
+
+#ifndef WIFEXITED
+#define WIFEXITED(status)	(((status) & 0xff) == 0)
+#endif /* !defined WIFEXITED */
+#ifndef WEXITSTATUS
+#define WEXITSTATUS(status)	(((status) >> 8) & 0xff)
+#endif /* !defined WEXITSTATUS */
+
+#if HAVE_UNISTD_H
+#include "unistd.h"	/* for F_OK and R_OK */
+#endif /* HAVE_UNISTD_H */
+
+#if !HAVE_UNISTD_H
+#ifndef F_OK
+#define F_OK	0
+#endif /* !defined F_OK */
+#ifndef R_OK
+#define R_OK	4
+#endif /* !defined R_OK */
+#endif /* !HAVE_UNISTD_H */
+
+/* Unlike <ctype.h>'s isdigit, this also works if c < 0 | c > UCHAR_MAX. */
+#define is_digit(c) ((unsigned)(c) - '0' <= 9)
+
+/*
+** Define HAVE_STDINT_H's default value here, rather than at the
+** start, since __GLIBC__'s value depends on previously-included
+** files.
+** (glibc 2.1 and later have stdint.h, even with pre-C99 compilers.)
+*/
+#ifndef HAVE_STDINT_H
+#define HAVE_STDINT_H \
+	(199901 <= __STDC_VERSION__ || \
+	2 < (__GLIBC__ + (0 < __GLIBC_MINOR__)))
+#endif /* !defined HAVE_STDINT_H */
+
+#if HAVE_STDINT_H
+#include "stdint.h"
+#endif /* !HAVE_STDINT_H */
+
+#ifndef INT_FAST64_MAX
+/* Pre-C99 GCC compilers define __LONG_LONG_MAX__ instead of LLONG_MAX.  */
+#if defined LLONG_MAX || defined __LONG_LONG_MAX__
+typedef long long	int_fast64_t;
+#else /* ! (defined LLONG_MAX || defined __LONG_LONG_MAX__) */
+#if (LONG_MAX >> 31) < 0xffffffff
+Please use a compiler that supports a 64-bit integer type (or wider);
+you may need to compile with "-DHAVE_STDINT_H".
+#endif /* (LONG_MAX >> 31) < 0xffffffff */
+typedef long		int_fast64_t;
+#endif /* ! (defined LLONG_MAX || defined __LONG_LONG_MAX__) */
+#endif /* !defined INT_FAST64_MAX */
+
+#ifndef INT32_MAX
+#define INT32_MAX 0x7fffffff
+#endif /* !defined INT32_MAX */
+#ifndef INT32_MIN
+#define INT32_MIN (-1 - INT32_MAX)
+#endif /* !defined INT32_MIN */
+
+/*
+** Workarounds for compilers/systems.
+*/
+
+/*
+** If your compiler lacks prototypes, "#define P(x) ()".
+*/
+
+#ifndef P
+#define P(x)	x
+#endif /* !defined P */
+
+/*
+** SunOS 4.1.1 headers lack EXIT_SUCCESS.
+*/
+
+#ifndef EXIT_SUCCESS
+#define EXIT_SUCCESS	0
+#endif /* !defined EXIT_SUCCESS */
+
+/*
+** SunOS 4.1.1 headers lack EXIT_FAILURE.
+*/
+
+#ifndef EXIT_FAILURE
+#define EXIT_FAILURE	1
+#endif /* !defined EXIT_FAILURE */
+
+/*
+** SunOS 4.1.1 headers lack FILENAME_MAX.
+*/
+
+#ifndef FILENAME_MAX
+
+#ifndef MAXPATHLEN
+#ifdef unix
+#include "sys/param.h"
+#endif /* defined unix */
+#endif /* !defined MAXPATHLEN */
+
+#ifdef MAXPATHLEN
+#define FILENAME_MAX	MAXPATHLEN
+#endif /* defined MAXPATHLEN */
+#ifndef MAXPATHLEN
+#define FILENAME_MAX	1024		/* Pure guesswork */
+#endif /* !defined MAXPATHLEN */
+
+#endif /* !defined FILENAME_MAX */
+
+/*
+** SunOS 4.1.1 libraries lack remove.
+*/
+
+#ifndef remove
+extern int	unlink P((const char * filename));
+#define remove	unlink
+#endif /* !defined remove */
+
+/*
+** Some ancient errno.h implementations don't declare errno.
+** But some newer errno.h implementations define it as a macro.
+** Fix the former without affecting the latter.
+*/
+
+#ifndef errno
+extern int errno;
+#endif /* !defined errno */
+
+/*
+** Some time.h implementations don't declare asctime_r.
+** Others might define it as a macro.
+** Fix the former without affecting the latter.
+*/
+
+#ifndef asctime_r
+extern char *	asctime_r();
+#endif
+
+/*
+** Private function declarations.
+*/
+
+char *		icalloc P((int nelem, int elsize));
+char *		icatalloc P((char * old, const char * new));
+char *		icpyalloc P((const char * string));
+char *		imalloc P((int n));
+void *		irealloc P((void * pointer, int size));
+void		icfree P((char * pointer));
+void		ifree P((char * pointer));
+const char *	scheck P((const char * string, const char * format));
+
+/*
+** Finally, some convenience items.
+*/
+
+#ifndef TRUE
+#define TRUE	1
+#endif /* !defined TRUE */
+
+#ifndef FALSE
+#define FALSE	0
+#endif /* !defined FALSE */
+
+#ifndef TYPE_BIT
+#define TYPE_BIT(type)	(sizeof (type) * CHAR_BIT)
+#endif /* !defined TYPE_BIT */
+
+#ifndef TYPE_SIGNED
+#define TYPE_SIGNED(type) (((type) -1) < 0)
+#endif /* !defined TYPE_SIGNED */
+
+/*
+** Since the definition of TYPE_INTEGRAL contains floating point numbers,
+** it cannot be used in preprocessor directives.
+*/
+
+#ifndef TYPE_INTEGRAL
+#define TYPE_INTEGRAL(type) (((type) 0.5) != 0.5)
+#endif /* !defined TYPE_INTEGRAL */
+
+#ifndef INT_STRLEN_MAXIMUM
+/*
+** 302 / 1000 is log10(2.0) rounded up.
+** Subtract one for the sign bit if the type is signed;
+** add one for integer division truncation;
+** add one more for a minus sign if the type is signed.
+*/
+#define INT_STRLEN_MAXIMUM(type) \
+	((TYPE_BIT(type) - TYPE_SIGNED(type)) * 302 / 1000 + \
+	1 + TYPE_SIGNED(type))
+#endif /* !defined INT_STRLEN_MAXIMUM */
+
+/*
+** INITIALIZE(x)
+*/
+
+#ifndef GNUC_or_lint
+#ifdef lint
+#define GNUC_or_lint
+#endif /* defined lint */
+#ifndef lint
+#ifdef __GNUC__
+#define GNUC_or_lint
+#endif /* defined __GNUC__ */
+#endif /* !defined lint */
+#endif /* !defined GNUC_or_lint */
+
+#ifndef INITIALIZE
+#ifdef GNUC_or_lint
+#define INITIALIZE(x)	((x) = 0)
+#endif /* defined GNUC_or_lint */
+#ifndef GNUC_or_lint
+#define INITIALIZE(x)
+#endif /* !defined GNUC_or_lint */
+#endif /* !defined INITIALIZE */
+
+/*
+** For the benefit of GNU folk...
+** `_(MSGID)' uses the current locale's message library string for MSGID.
+** The default is to use gettext if available, and use MSGID otherwise.
+*/
+
+#ifndef _
+#if HAVE_GETTEXT
+#define _(msgid) gettext(msgid)
+#else /* !HAVE_GETTEXT */
+#define _(msgid) msgid
+#endif /* !HAVE_GETTEXT */
+#endif /* !defined _ */
+
+#ifndef TZ_DOMAIN
+#define TZ_DOMAIN "tz"
+#endif /* !defined TZ_DOMAIN */
+
+#if HAVE_INCOMPATIBLE_CTIME_R
+#undef asctime_r
+#undef ctime_r
+char *asctime_r P((struct tm const *, char *));
+char *ctime_r P((time_t const *, char *));
+#endif /* HAVE_INCOMPATIBLE_CTIME_R */
+
+#ifndef YEARSPERREPEAT
+#define YEARSPERREPEAT		400	/* years before a Gregorian repeat */
+#endif /* !defined YEARSPERREPEAT */
+
+/*
+** The Gregorian year averages 365.2425 days, which is 31556952 seconds.
+*/
+
+#ifndef AVGSECSPERYEAR
+#define AVGSECSPERYEAR		31556952L
+#endif /* !defined AVGSECSPERYEAR */
+
+#ifndef SECSPERREPEAT
+#define SECSPERREPEAT		((int_fast64_t) YEARSPERREPEAT * (int_fast64_t) AVGSECSPERYEAR)
+#endif /* !defined SECSPERREPEAT */
+ 
+#ifndef SECSPERREPEAT_BITS
+#define SECSPERREPEAT_BITS	34	/* ceil(log2(SECSPERREPEAT)) */
+#endif /* !defined SECSPERREPEAT_BITS */
+
+/*
+** UNIX was a registered trademark of The Open Group in 2003.
+*/
+
+#endif /* !defined PRIVATE_H */
diff --git a/libcutils/tzfile.h b/libcutils/tzfile.h
new file mode 100644
index 0000000..8c70375
--- /dev/null
+++ b/libcutils/tzfile.h
@@ -0,0 +1,180 @@
+#ifndef TZFILE_H
+
+#define TZFILE_H
+
+/*
+** This file is in the public domain, so clarified as of
+** 1996-06-05 by Arthur David Olson.
+*/
+
+/*
+** This header is for use ONLY with the time conversion code.
+** There is no guarantee that it will remain unchanged,
+** or that it will remain at all.
+** Do NOT copy it to any system include directory.
+** Thank you!
+*/
+
+/*
+** ID
+*/
+
+#ifndef lint
+#ifndef NOID
+static char	tzfilehid[] = "@(#)tzfile.h	8.1";
+#endif /* !defined NOID */
+#endif /* !defined lint */
+
+/*
+** Information about time zone files.
+*/
+
+#ifndef TZDIR
+#define TZDIR "/usr/share/zoneinfo" /* "/android/usr/share/zoneinfo" */ /* Time zone object file directory */
+#endif /* !defined TZDIR */
+
+#ifndef TZDEFAULT
+#define TZDEFAULT	"localtime"
+#endif /* !defined TZDEFAULT */
+
+#ifndef TZDEFRULES
+#define TZDEFRULES	"posixrules"
+#endif /* !defined TZDEFRULES */
+
+/*
+** Each file begins with. . .
+*/
+
+#define	TZ_MAGIC	"TZif"
+
+struct tzhead {
+	char	tzh_magic[4];		/* TZ_MAGIC */
+	char	tzh_version[1];		/* '\0' or '2' as of 2005 */
+	char	tzh_reserved[15];	/* reserved--must be zero */
+	char	tzh_ttisgmtcnt[4];	/* coded number of trans. time flags */
+	char	tzh_ttisstdcnt[4];	/* coded number of trans. time flags */
+	char	tzh_leapcnt[4];		/* coded number of leap seconds */
+	char	tzh_timecnt[4];		/* coded number of transition times */
+	char	tzh_typecnt[4];		/* coded number of local time types */
+	char	tzh_charcnt[4];		/* coded number of abbr. chars */
+};
+
+/*
+** . . .followed by. . .
+**
+**	tzh_timecnt (char [4])s		coded transition times a la time(2)
+**	tzh_timecnt (unsigned char)s	types of local time starting at above
+**	tzh_typecnt repetitions of
+**		one (char [4])		coded UTC offset in seconds
+**		one (unsigned char)	used to set tm_isdst
+**		one (unsigned char)	that's an abbreviation list index
+**	tzh_charcnt (char)s		'\0'-terminated zone abbreviations
+**	tzh_leapcnt repetitions of
+**		one (char [4])		coded leap second transition times
+**		one (char [4])		total correction after above
+**	tzh_ttisstdcnt (char)s		indexed by type; if TRUE, transition
+**					time is standard time, if FALSE,
+**					transition time is wall clock time
+**					if absent, transition times are
+**					assumed to be wall clock time
+**	tzh_ttisgmtcnt (char)s		indexed by type; if TRUE, transition
+**					time is UTC, if FALSE,
+**					transition time is local time
+**					if absent, transition times are
+**					assumed to be local time
+*/
+
+/*
+** If tzh_version is '2' or greater, the above is followed by a second instance
+** of tzhead and a second instance of the data in which each coded transition
+** time uses 8 rather than 4 chars,
+** then a POSIX-TZ-environment-variable-style string for use in handling
+** instants after the last transition time stored in the file
+** (with nothing between the newlines if there is no POSIX representation for
+** such instants).
+*/
+
+/*
+** In the current implementation, "tzset()" refuses to deal with files that
+** exceed any of the limits below.
+*/
+
+#ifndef TZ_MAX_TIMES
+#define TZ_MAX_TIMES	1200
+#endif /* !defined TZ_MAX_TIMES */
+
+#ifndef TZ_MAX_TYPES
+#ifndef NOSOLAR
+#define TZ_MAX_TYPES	256 /* Limited by what (unsigned char)'s can hold */
+#endif /* !defined NOSOLAR */
+#ifdef NOSOLAR
+/*
+** Must be at least 14 for Europe/Riga as of Jan 12 1995,
+** as noted by Earl Chew.
+*/
+#define TZ_MAX_TYPES	20	/* Maximum number of local time types */
+#endif /* !defined NOSOLAR */
+#endif /* !defined TZ_MAX_TYPES */
+
+#ifndef TZ_MAX_CHARS
+#define TZ_MAX_CHARS	50	/* Maximum number of abbreviation characters */
+				/* (limited by what unsigned chars can hold) */
+#endif /* !defined TZ_MAX_CHARS */
+
+#ifndef TZ_MAX_LEAPS
+#define TZ_MAX_LEAPS	50	/* Maximum number of leap second corrections */
+#endif /* !defined TZ_MAX_LEAPS */
+
+#define SECSPERMIN	60
+#define MINSPERHOUR	60
+#define HOURSPERDAY	24
+#define DAYSPERWEEK	7
+#define DAYSPERNYEAR	365
+#define DAYSPERLYEAR	366
+#define SECSPERHOUR	(SECSPERMIN * MINSPERHOUR)
+#define SECSPERDAY	((long) SECSPERHOUR * HOURSPERDAY)
+#define MONSPERYEAR	12
+
+#define TM_SUNDAY	0
+#define TM_MONDAY	1
+#define TM_TUESDAY	2
+#define TM_WEDNESDAY	3
+#define TM_THURSDAY	4
+#define TM_FRIDAY	5
+#define TM_SATURDAY	6
+
+#define TM_JANUARY	0
+#define TM_FEBRUARY	1
+#define TM_MARCH	2
+#define TM_APRIL	3
+#define TM_MAY		4
+#define TM_JUNE		5
+#define TM_JULY		6
+#define TM_AUGUST	7
+#define TM_SEPTEMBER	8
+#define TM_OCTOBER	9
+#define TM_NOVEMBER	10
+#define TM_DECEMBER	11
+
+#define TM_YEAR_BASE	1900
+
+#define EPOCH_YEAR	1970
+#define EPOCH_WDAY	TM_THURSDAY
+
+#define isleap(y) (((y) % 4) == 0 && (((y) % 100) != 0 || ((y) % 400) == 0))
+
+/*
+** Since everything in isleap is modulo 400 (or a factor of 400), we know that
+**	isleap(y) == isleap(y % 400)
+** and so
+**	isleap(a + b) == isleap((a + b) % 400)
+** or
+**	isleap(a + b) == isleap(a % 400 + b % 400)
+** This is true even if % means modulo rather than Fortran remainder
+** (which is allowed by C89 but not C99).
+** We use this to avoid addition overflow problems.
+*/
+
+#define isleap_sum(a, b)	isleap((a) % 400 + (b) % 400)
+
+#endif /* !defined TZFILE_H */
diff --git a/libcutils/tzstrftime.c b/libcutils/tzstrftime.c
new file mode 100644
index 0000000..e4f54df
--- /dev/null
+++ b/libcutils/tzstrftime.c
@@ -0,0 +1,842 @@
+#ifndef lint
+#ifndef NOID
+static char	elsieid[] = "@(#)strftime.c	8.1";
+/*
+** Based on the UCB version with the ID appearing below.
+** This is ANSIish only when "multibyte character == plain character".
+*/
+#endif /* !defined NOID */
+#endif /* !defined lint */
+
+#include <stdio.h>
+#include <time.h>
+#include <tzfile.h>
+#include <limits.h>
+#include <cutils/tztime.h>
+
+/*
+** Copyright (c) 1989 The Regents of the University of California.
+** All rights reserved.
+**
+** Redistribution and use in source and binary forms are permitted
+** provided that the above copyright notice and this paragraph are
+** duplicated in all such forms and that any documentation,
+** advertising materials, and other materials related to such
+** distribution and use acknowledge that the software was developed
+** by the University of California, Berkeley. The name of the
+** University may not be used to endorse or promote products derived
+** from this software without specific prior written permission.
+** THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
+** IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
+** WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
+*/
+
+#ifndef LIBC_SCCS
+#ifndef lint
+static const char	sccsid[] = "@(#)strftime.c	5.4 (Berkeley) 3/14/89";
+#endif /* !defined lint */
+#endif /* !defined LIBC_SCCS */
+
+#include <ctype.h>
+
+#define P(x) x
+
+static char *	_add P((const char *, char *, const char *, int));
+static char *	_conv P((int, const char *, char *, const char *));
+static char *	_fmt P((const char *, const struct tm *, char *, const char *,
+			int *, const struct strftime_locale *Locale));
+static char *	_yconv P((int, int, int, int, char *, const char *, int));
+static char *	getformat P((int, char *, char *, char *, char *));
+
+extern char *	tzname[];
+
+
+
+
+
+/* from private.h */
+
+#ifndef TYPE_BIT
+#define TYPE_BIT(type)  (sizeof (type) * CHAR_BIT)
+#endif /* !defined TYPE_BIT */
+
+#ifndef TYPE_SIGNED
+#define TYPE_SIGNED(type) (((type) -1) < 0)
+#endif /* !defined TYPE_SIGNED */
+
+#ifndef INT_STRLEN_MAXIMUM
+/*
+ * ** 302 / 1000 is log10(2.0) rounded up.
+ * ** Subtract one for the sign bit if the type is signed;
+ * ** add one for integer division truncation;
+ * ** add one more for a minus sign if the type is signed.
+ * */
+#define INT_STRLEN_MAXIMUM(type) \
+    ((TYPE_BIT(type) - TYPE_SIGNED(type)) * 302 / 1000 + \
+    1 + TYPE_SIGNED(type))
+#endif /* !defined INT_STRLEN_MAXIMUM */
+
+/* end of part from private.h */
+
+
+
+
+#ifndef YEAR_2000_NAME
+#define YEAR_2000_NAME	"CHECK_STRFTIME_FORMATS_FOR_TWO_DIGIT_YEARS"
+#endif /* !defined YEAR_2000_NAME */
+
+#define IN_NONE	0
+#define IN_SOME	1
+#define IN_THIS	2
+#define IN_ALL	3
+
+#define FORCE_LOWER_CASE 0x100
+
+size_t
+strftime_tz(s, maxsize, format, t, Locale)
+char * const		s;
+const size_t		maxsize;
+const char * const	format;
+const struct tm * const	t;
+const struct strftime_locale *Locale;
+{
+	char *	p;
+	int	warn;
+
+	warn = IN_NONE;
+	p = _fmt(((format == NULL) ? "%c" : format), t, s, s + maxsize, &warn, Locale);
+#if 0
+	if (warn != IN_NONE && getenv(YEAR_2000_NAME) != NULL) {
+		(void) fprintf(stderr, "\n");
+		if (format == NULL)
+			(void) fprintf(stderr, "NULL strftime format ");
+		else	(void) fprintf(stderr, "strftime format \"%s\" ",
+				format);
+		(void) fprintf(stderr, "yields only two digits of years in ");
+		if (warn == IN_SOME)
+			(void) fprintf(stderr, "some locales");
+		else if (warn == IN_THIS)
+			(void) fprintf(stderr, "the current locale");
+		else	(void) fprintf(stderr, "all locales");
+		(void) fprintf(stderr, "\n");
+	}
+#endif /* !defined NO_RUN_TIME_WARNINGS_ABOUT_YEAR_2000_PROBLEMS_THANK_YOU */
+	if (p == s + maxsize)
+		return 0;
+	*p = '\0';
+	return p - s;
+}
+
+static char *getformat(int modifier, char *normal, char *underscore,
+                       char *dash, char *zero) {
+    switch (modifier) {
+    case '_':
+        return underscore;
+
+    case '-':
+        return dash;
+
+    case '0':
+        return zero;
+    }
+
+    return normal;
+}
+
+static char *
+_fmt(format, t, pt, ptlim, warnp, Locale)
+const char *		format;
+const struct tm * const	t;
+char *			pt;
+const char * const	ptlim;
+int *			warnp;
+const struct strftime_locale *Locale;
+{
+	for ( ; *format; ++format) {
+		if (*format == '%') {
+            int modifier = 0;
+label:
+			switch (*++format) {
+			case '\0':
+				--format;
+				break;
+			case 'A':
+				pt = _add((t->tm_wday < 0 ||
+					t->tm_wday >= DAYSPERWEEK) ?
+					"?" : Locale->weekday[t->tm_wday],
+					pt, ptlim, modifier);
+				continue;
+			case 'a':
+				pt = _add((t->tm_wday < 0 ||
+					t->tm_wday >= DAYSPERWEEK) ?
+					"?" : Locale->wday[t->tm_wday],
+					pt, ptlim, modifier);
+				continue;
+			case 'B':
+				if (modifier == '-') {
+					pt = _add((t->tm_mon < 0 ||
+						t->tm_mon >= MONSPERYEAR) ?
+						"?" : Locale->standalone_month[t->tm_mon],
+						pt, ptlim, modifier);
+				} else {
+					pt = _add((t->tm_mon < 0 ||
+						t->tm_mon >= MONSPERYEAR) ?
+						"?" : Locale->month[t->tm_mon],
+						pt, ptlim, modifier);
+				}
+				continue;
+			case 'b':
+			case 'h':
+				pt = _add((t->tm_mon < 0 ||
+					t->tm_mon >= MONSPERYEAR) ?
+					"?" : Locale->mon[t->tm_mon],
+					pt, ptlim, modifier);
+				continue;
+			case 'C':
+				/*
+				** %C used to do a...
+				**	_fmt("%a %b %e %X %Y", t);
+				** ...whereas now POSIX 1003.2 calls for
+				** something completely different.
+				** (ado, 1993-05-24)
+				*/
+				pt = _yconv(t->tm_year, TM_YEAR_BASE, 1, 0,
+					pt, ptlim, modifier);
+				continue;
+			case 'c':
+				{
+				int warn2 = IN_SOME;
+
+				pt = _fmt(Locale->c_fmt, t, pt, ptlim, warnp, Locale);
+				if (warn2 == IN_ALL)
+					warn2 = IN_THIS;
+				if (warn2 > *warnp)
+					*warnp = warn2;
+				}
+				continue;
+			case 'D':
+                                pt = _fmt("%m/%d/%y", t, pt, ptlim, warnp, Locale);
+				continue;
+			case 'd':
+                                pt = _conv(t->tm_mday,
+                                           getformat(modifier, "%02d",
+                                                     "%2d", "%d", "%02d"),
+                                           pt, ptlim);
+				continue;
+			case 'E':
+			case 'O':
+				/*
+				** C99 locale modifiers.
+				** The sequences
+				**	%Ec %EC %Ex %EX %Ey %EY
+				**	%Od %oe %OH %OI %Om %OM
+				**	%OS %Ou %OU %OV %Ow %OW %Oy
+				** are supposed to provide alternate
+				** representations.
+				*/
+				goto label;
+            case '_':
+            case '-':
+            case '0':
+            case '^':
+            case '#':
+                modifier = *format;
+                goto label;
+			case 'e':
+				pt = _conv(t->tm_mday,
+                                           getformat(modifier, "%2d",
+                                                     "%2d", "%d", "%02d"),
+                                           pt, ptlim);
+				continue;
+			case 'F':
+				pt = _fmt("%Y-%m-%d", t, pt, ptlim, warnp, Locale);
+				continue;
+			case 'H':
+				pt = _conv(t->tm_hour,
+                                           getformat(modifier, "%02d",
+                                                     "%2d", "%d", "%02d"),
+                                           pt, ptlim);
+				continue;
+			case 'I':
+				pt = _conv((t->tm_hour % 12) ?
+					(t->tm_hour % 12) : 12,
+					getformat(modifier, "%02d",
+                                                  "%2d", "%d", "%02d"),
+                                        pt, ptlim);
+				continue;
+			case 'j':
+				pt = _conv(t->tm_yday + 1,
+                           getformat(modifier, "%03d", "%3d", "%d", "%03d"),
+                           pt, ptlim);
+				continue;
+			case 'k':
+				/*
+				** This used to be...
+				**	_conv(t->tm_hour % 12 ?
+				**		t->tm_hour % 12 : 12, 2, ' ');
+				** ...and has been changed to the below to
+				** match SunOS 4.1.1 and Arnold Robbins'
+				** strftime version 3.0. That is, "%k" and
+				** "%l" have been swapped.
+				** (ado, 1993-05-24)
+				*/
+				pt = _conv(t->tm_hour,
+                                           getformat(modifier, "%2d",
+                                                     "%2d", "%d", "%02d"),
+                                           pt, ptlim);
+				continue;
+#ifdef KITCHEN_SINK
+			case 'K':
+				/*
+				** After all this time, still unclaimed!
+				*/
+				pt = _add("kitchen sink", pt, ptlim, modifier);
+				continue;
+#endif /* defined KITCHEN_SINK */
+			case 'l':
+				/*
+				** This used to be...
+				**	_conv(t->tm_hour, 2, ' ');
+				** ...and has been changed to the below to
+				** match SunOS 4.1.1 and Arnold Robbin's
+				** strftime version 3.0. That is, "%k" and
+				** "%l" have been swapped.
+				** (ado, 1993-05-24)
+				*/
+				pt = _conv((t->tm_hour % 12) ?
+					(t->tm_hour % 12) : 12,
+					getformat(modifier, "%2d",
+                                                  "%2d", "%d", "%02d"),
+                                        pt, ptlim);
+				continue;
+			case 'M':
+				pt = _conv(t->tm_min,
+                                           getformat(modifier, "%02d",
+                                                     "%2d", "%d", "%02d"),
+                                           pt, ptlim);
+				continue;
+			case 'm':
+				pt = _conv(t->tm_mon + 1,
+                                           getformat(modifier, "%02d",
+                                                     "%2d", "%d", "%02d"),
+                                           pt, ptlim);
+				continue;
+			case 'n':
+				pt = _add("\n", pt, ptlim, modifier);
+				continue;
+			case 'p':
+				pt = _add((t->tm_hour >= (HOURSPERDAY / 2)) ?
+					Locale->pm :
+					Locale->am,
+					pt, ptlim, modifier);
+				continue;
+			case 'P':
+				pt = _add((t->tm_hour >= (HOURSPERDAY / 2)) ?
+					Locale->pm :
+					Locale->am,
+					pt, ptlim, FORCE_LOWER_CASE);
+				continue;
+			case 'R':
+				pt = _fmt("%H:%M", t, pt, ptlim, warnp, Locale);
+				continue;
+			case 'r':
+				pt = _fmt("%I:%M:%S %p", t, pt, ptlim, warnp, Locale);
+				continue;
+			case 'S':
+				pt = _conv(t->tm_sec,
+                                           getformat(modifier, "%02d",
+                                                     "%2d", "%d", "%02d"),
+                                           pt, ptlim);
+				continue;
+			case 's':
+				{
+					struct tm	tm;
+					char		buf[INT_STRLEN_MAXIMUM(
+								time_t) + 1];
+					time_t		mkt;
+
+					tm = *t;
+					mkt = mktime(&tm);
+					if (TYPE_SIGNED(time_t))
+						(void) sprintf(buf, "%ld",
+							(long) mkt);
+					else	(void) sprintf(buf, "%lu",
+							(unsigned long) mkt);
+					pt = _add(buf, pt, ptlim, modifier);
+				}
+				continue;
+			case 'T':
+				pt = _fmt("%H:%M:%S", t, pt, ptlim, warnp, Locale);
+				continue;
+			case 't':
+				pt = _add("\t", pt, ptlim, modifier);
+				continue;
+			case 'U':
+				pt = _conv((t->tm_yday + DAYSPERWEEK -
+					t->tm_wday) / DAYSPERWEEK,
+					getformat(modifier, "%02d",
+                                                  "%2d", "%d", "%02d"),
+                                        pt, ptlim);
+				continue;
+			case 'u':
+				/*
+				** From Arnold Robbins' strftime version 3.0:
+				** "ISO 8601: Weekday as a decimal number
+				** [1 (Monday) - 7]"
+				** (ado, 1993-05-24)
+				*/
+				pt = _conv((t->tm_wday == 0) ?
+					DAYSPERWEEK : t->tm_wday, "%d", pt, ptlim);
+				continue;
+			case 'V':	/* ISO 8601 week number */
+			case 'G':	/* ISO 8601 year (four digits) */
+			case 'g':	/* ISO 8601 year (two digits) */
+/*
+** From Arnold Robbins' strftime version 3.0: "the week number of the
+** year (the first Monday as the first day of week 1) as a decimal number
+** (01-53)."
+** (ado, 1993-05-24)
+**
+** From "http://www.ft.uni-erlangen.de/~mskuhn/iso-time.html" by Markus Kuhn:
+** "Week 01 of a year is per definition the first week which has the
+** Thursday in this year, which is equivalent to the week which contains
+** the fourth day of January. In other words, the first week of a new year
+** is the week which has the majority of its days in the new year. Week 01
+** might also contain days from the previous year and the week before week
+** 01 of a year is the last week (52 or 53) of the previous year even if
+** it contains days from the new year. A week starts with Monday (day 1)
+** and ends with Sunday (day 7). For example, the first week of the year
+** 1997 lasts from 1996-12-30 to 1997-01-05..."
+** (ado, 1996-01-02)
+*/
+				{
+					int	year;
+					int	base;
+					int	yday;
+					int	wday;
+					int	w;
+
+					year = t->tm_year;
+					base = TM_YEAR_BASE;
+					yday = t->tm_yday;
+					wday = t->tm_wday;
+					for ( ; ; ) {
+						int	len;
+						int	bot;
+						int	top;
+
+						len = isleap_sum(year, base) ?
+							DAYSPERLYEAR :
+							DAYSPERNYEAR;
+						/*
+						** What yday (-3 ... 3) does
+						** the ISO year begin on?
+						*/
+						bot = ((yday + 11 - wday) %
+							DAYSPERWEEK) - 3;
+						/*
+						** What yday does the NEXT
+						** ISO year begin on?
+						*/
+						top = bot -
+							(len % DAYSPERWEEK);
+						if (top < -3)
+							top += DAYSPERWEEK;
+						top += len;
+						if (yday >= top) {
+							++base;
+							w = 1;
+							break;
+						}
+						if (yday >= bot) {
+							w = 1 + ((yday - bot) /
+								DAYSPERWEEK);
+							break;
+						}
+						--base;
+						yday += isleap_sum(year, base) ?
+							DAYSPERLYEAR :
+							DAYSPERNYEAR;
+					}
+#ifdef XPG4_1994_04_09
+					if ((w == 52 &&
+						t->tm_mon == TM_JANUARY) ||
+						(w == 1 &&
+						t->tm_mon == TM_DECEMBER))
+							w = 53;
+#endif /* defined XPG4_1994_04_09 */
+					if (*format == 'V')
+						pt = _conv(w,
+                                                           getformat(modifier,
+                                                                     "%02d",
+                                                                     "%2d",
+                                                                     "%d",
+                                                                     "%02d"),
+							   pt, ptlim);
+					else if (*format == 'g') {
+						*warnp = IN_ALL;
+						pt = _yconv(year, base, 0, 1,
+							pt, ptlim, modifier);
+					} else	pt = _yconv(year, base, 1, 1,
+							pt, ptlim, modifier);
+				}
+				continue;
+			case 'v':
+				/*
+				** From Arnold Robbins' strftime version 3.0:
+				** "date as dd-bbb-YYYY"
+				** (ado, 1993-05-24)
+				*/
+				pt = _fmt("%e-%b-%Y", t, pt, ptlim, warnp, Locale);
+				continue;
+			case 'W':
+				pt = _conv((t->tm_yday + DAYSPERWEEK -
+					(t->tm_wday ?
+					(t->tm_wday - 1) :
+					(DAYSPERWEEK - 1))) / DAYSPERWEEK,
+					getformat(modifier, "%02d",
+                                                  "%2d", "%d", "%02d"),
+                                        pt, ptlim);
+				continue;
+			case 'w':
+				pt = _conv(t->tm_wday, "%d", pt, ptlim);
+				continue;
+			case 'X':
+				pt = _fmt(Locale->X_fmt, t, pt, ptlim, warnp, Locale);
+				continue;
+			case 'x':
+				{
+				int	warn2 = IN_SOME;
+
+				pt = _fmt(Locale->x_fmt, t, pt, ptlim, &warn2, Locale);
+				if (warn2 == IN_ALL)
+					warn2 = IN_THIS;
+				if (warn2 > *warnp)
+					*warnp = warn2;
+				}
+				continue;
+			case 'y':
+				*warnp = IN_ALL;
+				pt = _yconv(t->tm_year, TM_YEAR_BASE, 0, 1,
+					pt, ptlim, modifier);
+				continue;
+			case 'Y':
+				pt = _yconv(t->tm_year, TM_YEAR_BASE, 1, 1,
+					pt, ptlim, modifier);
+				continue;
+			case 'Z':
+#ifdef TM_ZONE
+				if (t->TM_ZONE != NULL)
+					pt = _add(t->TM_ZONE, pt, ptlim,
+                                                  modifier);
+				else
+#endif /* defined TM_ZONE */
+				if (t->tm_isdst >= 0)
+					pt = _add(tzname[t->tm_isdst != 0],
+						pt, ptlim, modifier);
+				/*
+				** C99 says that %Z must be replaced by the
+				** empty string if the time zone is not
+				** determinable.
+				*/
+				continue;
+			case 'z':
+				{
+				int		diff;
+				char const *	sign;
+
+				if (t->tm_isdst < 0)
+					continue;
+#ifdef TM_GMTOFF
+				diff = t->TM_GMTOFF;
+#else /* !defined TM_GMTOFF */
+				/*
+				** C99 says that the UTC offset must
+				** be computed by looking only at
+				** tm_isdst. This requirement is
+				** incorrect, since it means the code
+				** must rely on magic (in this case
+				** altzone and timezone), and the
+				** magic might not have the correct
+				** offset. Doing things correctly is
+				** tricky and requires disobeying C99;
+				** see GNU C strftime for details.
+				** For now, punt and conform to the
+				** standard, even though it's incorrect.
+				**
+				** C99 says that %z must be replaced by the
+				** empty string if the time zone is not
+				** determinable, so output nothing if the
+				** appropriate variables are not available.
+				*/
+				if (t->tm_isdst == 0)
+#ifdef USG_COMPAT
+					diff = -timezone;
+#else /* !defined USG_COMPAT */
+					continue;
+#endif /* !defined USG_COMPAT */
+				else
+#ifdef ALTZONE
+					diff = -altzone;
+#else /* !defined ALTZONE */
+					continue;
+#endif /* !defined ALTZONE */
+#endif /* !defined TM_GMTOFF */
+				if (diff < 0) {
+					sign = "-";
+					diff = -diff;
+				} else	sign = "+";
+				pt = _add(sign, pt, ptlim, modifier);
+				diff /= SECSPERMIN;
+				diff = (diff / MINSPERHOUR) * 100 +
+					(diff % MINSPERHOUR);
+				pt = _conv(diff,
+                                           getformat(modifier, "%04d",
+                                                     "%4d", "%d", "%04d"),
+                                           pt, ptlim);
+				}
+				continue;
+			case '+':
+				pt = _fmt(Locale->date_fmt, t, pt, ptlim,
+					warnp, Locale);
+				continue;
+			case '%':
+			/*
+			** X311J/88-090 (4.12.3.5): if conversion char is
+			** undefined, behavior is undefined. Print out the
+			** character itself as printf(3) also does.
+			*/
+			default:
+				break;
+			}
+		}
+		if (pt == ptlim)
+			break;
+		*pt++ = *format;
+	}
+	return pt;
+}
+
+static char *
+_conv(n, format, pt, ptlim)
+const int		n;
+const char * const	format;
+char * const		pt;
+const char * const	ptlim;
+{
+	char	buf[INT_STRLEN_MAXIMUM(int) + 1];
+
+	(void) sprintf(buf, format, n);
+	return _add(buf, pt, ptlim, 0);
+}
+
+static char *
+_add(str, pt, ptlim, modifier)
+const char *		str;
+char *			pt;
+const char * const	ptlim;
+int                     modifier;
+{
+        int c;
+
+        switch (modifier) {
+        case FORCE_LOWER_CASE:
+                while (pt < ptlim && (*pt = tolower(*str++)) != '\0') {
+                        ++pt;
+                }
+                break;
+
+        case '^':
+                while (pt < ptlim && (*pt = toupper(*str++)) != '\0') {
+                        ++pt;
+                }
+                break;
+
+        case '#':
+                while (pt < ptlim && (c = *str++) != '\0') {
+                        if (isupper(c)) {
+                                c = tolower(c);
+                        } else if (islower(c)) {
+                                c = toupper(c);
+                        }
+                        *pt = c;
+                        ++pt;
+                }
+
+                break;
+
+        default:
+                while (pt < ptlim && (*pt = *str++) != '\0') {
+                        ++pt;
+                }
+        }
+
+	return pt;
+}
+
+/*
+** POSIX and the C Standard are unclear or inconsistent about
+** what %C and %y do if the year is negative or exceeds 9999.
+** Use the convention that %C concatenated with %y yields the
+** same output as %Y, and that %Y contains at least 4 bytes,
+** with more only if necessary.
+*/
+
+static char *
+_yconv(a, b, convert_top, convert_yy, pt, ptlim, modifier)
+const int		a;
+const int		b;
+const int		convert_top;
+const int		convert_yy;
+char *			pt;
+const char * const	ptlim;
+int                     modifier;
+{
+	register int	lead;
+	register int	trail;
+
+#define DIVISOR	100
+	trail = a % DIVISOR + b % DIVISOR;
+	lead = a / DIVISOR + b / DIVISOR + trail / DIVISOR;
+	trail %= DIVISOR;
+	if (trail < 0 && lead > 0) {
+		trail += DIVISOR;
+		--lead;
+	} else if (lead < 0 && trail > 0) {
+		trail -= DIVISOR;
+		++lead;
+	}
+	if (convert_top) {
+		if (lead == 0 && trail < 0)
+			pt = _add("-0", pt, ptlim, modifier);
+		else	pt = _conv(lead, getformat(modifier, "%02d",
+                                                   "%2d", "%d", "%02d"),
+                                   pt, ptlim);
+	}
+	if (convert_yy)
+		pt = _conv(((trail < 0) ? -trail : trail),
+                           getformat(modifier, "%02d", "%2d", "%d", "%02d"),
+                           pt, ptlim);
+	return pt;
+}
+
+#ifdef LOCALE_HOME
+static struct lc_time_T *
+_loc P((void))
+{
+	static const char	locale_home[] = LOCALE_HOME;
+	static const char	lc_time[] = "LC_TIME";
+	static char *		locale_buf;
+
+	int			fd;
+	int			oldsun;	/* "...ain't got nothin' to do..." */
+	char *			lbuf;
+	char *			name;
+	char *			p;
+	const char **		ap;
+	const char *		plim;
+	char			filename[FILENAME_MAX];
+	struct stat		st;
+	size_t			namesize;
+	size_t			bufsize;
+
+	/*
+	** Use localebuf.mon[0] to signal whether locale is already set up.
+	*/
+	if (localebuf.mon[0])
+		return &localebuf;
+	name = setlocale(LC_TIME, (char *) NULL);
+	if (name == NULL || *name == '\0')
+		goto no_locale;
+	/*
+	** If the locale name is the same as our cache, use the cache.
+	*/
+	lbuf = locale_buf;
+	if (lbuf != NULL && strcmp(name, lbuf) == 0) {
+		p = lbuf;
+		for (ap = (const char **) &localebuf;
+			ap < (const char **) (&localebuf + 1);
+				++ap)
+					*ap = p += strlen(p) + 1;
+		return &localebuf;
+	}
+	/*
+	** Slurp the locale file into the cache.
+	*/
+	namesize = strlen(name) + 1;
+	if (sizeof filename <
+		((sizeof locale_home) + namesize + (sizeof lc_time)))
+			goto no_locale;
+	oldsun = 0;
+	(void) sprintf(filename, "%s/%s/%s", locale_home, name, lc_time);
+	fd = open(filename, O_RDONLY);
+	if (fd < 0) {
+		/*
+		** Old Sun systems have a different naming and data convention.
+		*/
+		oldsun = 1;
+		(void) sprintf(filename, "%s/%s/%s", locale_home,
+			lc_time, name);
+		fd = open(filename, O_RDONLY);
+		if (fd < 0)
+			goto no_locale;
+	}
+	if (fstat(fd, &st) != 0)
+		goto bad_locale;
+	if (st.st_size <= 0)
+		goto bad_locale;
+	bufsize = namesize + st.st_size;
+	locale_buf = NULL;
+	lbuf = (lbuf == NULL) ? malloc(bufsize) : realloc(lbuf, bufsize);
+	if (lbuf == NULL)
+		goto bad_locale;
+	(void) strcpy(lbuf, name);
+	p = lbuf + namesize;
+	plim = p + st.st_size;
+	if (read(fd, p, (size_t) st.st_size) != st.st_size)
+		goto bad_lbuf;
+	if (close(fd) != 0)
+		goto bad_lbuf;
+	/*
+	** Parse the locale file into localebuf.
+	*/
+	if (plim[-1] != '\n')
+		goto bad_lbuf;
+	for (ap = (const char **) &localebuf;
+		ap < (const char **) (&localebuf + 1);
+			++ap) {
+				if (p == plim)
+					goto bad_lbuf;
+				*ap = p;
+				while (*p != '\n')
+					++p;
+				*p++ = '\0';
+	}
+	if (oldsun) {
+		/*
+		** SunOS 4 used an obsolescent format; see localdtconv(3).
+		** c_fmt had the ``short format for dates and times together''
+		** (SunOS 4 date, "%a %b %e %T %Z %Y" in the C locale);
+		** date_fmt had the ``long format for dates''
+		** (SunOS 4 strftime %C, "%A, %B %e, %Y" in the C locale).
+		** Discard the latter in favor of the former.
+		*/
+		localebuf.date_fmt = localebuf.c_fmt;
+	}
+	/*
+	** Record the successful parse in the cache.
+	*/
+	locale_buf = lbuf;
+
+	return &localebuf;
+
+bad_lbuf:
+	free(lbuf);
+bad_locale:
+	(void) close(fd);
+no_locale:
+	localebuf = C_time_locale;
+	locale_buf = NULL;
+	return &localebuf;
+}
+#endif /* defined LOCALE_HOME */
diff --git a/libcutils/tztime.c b/libcutils/tztime.c
new file mode 100644
index 0000000..d6448a1
--- /dev/null
+++ b/libcutils/tztime.c
@@ -0,0 +1,1950 @@
+/*
+** This file is in the public domain, so clarified as of
+** 1996-06-05 by Arthur David Olson.
+*/
+
+#include <stdio.h>
+
+#ifndef lint
+#ifndef NOID
+static char	elsieid[] = "@(#)localtime.c	8.3";
+#endif /* !defined NOID */
+#endif /* !defined lint */
+
+/*
+** Leap second handling from Bradley White.
+** POSIX-style TZ environment variable handling from Guy Harris.
+*/
+
+/*LINTLIBRARY*/
+
+#include "private.h"
+#include "tzfile.h"
+#include "fcntl.h"
+#include "float.h"	/* for FLT_MAX and DBL_MAX */
+
+#ifndef TZ_ABBR_MAX_LEN
+#define TZ_ABBR_MAX_LEN	16
+#endif /* !defined TZ_ABBR_MAX_LEN */
+
+#ifndef TZ_ABBR_CHAR_SET
+#define TZ_ABBR_CHAR_SET \
+	"abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789 :+-._"
+#endif /* !defined TZ_ABBR_CHAR_SET */
+
+#ifndef TZ_ABBR_ERR_CHAR
+#define TZ_ABBR_ERR_CHAR	'_'
+#endif /* !defined TZ_ABBR_ERR_CHAR */
+
+#define INDEXFILE "/system/usr/share/zoneinfo/zoneinfo.idx"
+#define DATAFILE "/system/usr/share/zoneinfo/zoneinfo.dat"
+#define NAMELEN 40
+#define INTLEN 4
+#define READLEN (NAMELEN + 3 * INTLEN)
+
+/*
+** SunOS 4.1.1 headers lack O_BINARY.
+*/
+
+#ifdef O_BINARY
+#define OPEN_MODE	(O_RDONLY | O_BINARY)
+#endif /* defined O_BINARY */
+#ifndef O_BINARY
+#define OPEN_MODE	O_RDONLY
+#endif /* !defined O_BINARY */
+
+/* Complex computations to determine the min/max of time_t depending
+ * on TYPE_BIT / TYPE_SIGNED / TYPE_INTEGRAL.
+ * These macros cannot be used in pre-processor directives, so we
+ * let the C compiler do the work, which makes things a bit funky.
+ */
+static const time_t TIME_T_MAX =
+    TYPE_INTEGRAL(time_t) ?
+        ( TYPE_SIGNED(time_t) ?
+            ~((time_t)1 << (TYPE_BIT(time_t)-1))
+        :
+            ~(time_t)0
+        )
+    : /* if time_t is a floating point number */
+        ( sizeof(time_t) > sizeof(float) ? (time_t)DBL_MAX : (time_t)FLT_MAX );
+
+static const time_t TIME_T_MIN =
+    TYPE_INTEGRAL(time_t) ?
+        ( TYPE_SIGNED(time_t) ?
+            ((time_t)1 << (TYPE_BIT(time_t)-1))
+        :
+            0
+        )
+    :
+        ( sizeof(time_t) > sizeof(float) ? (time_t)DBL_MIN : (time_t)FLT_MIN );
+
+#ifndef WILDABBR
+/*
+** Someone might make incorrect use of a time zone abbreviation:
+**	1.	They might reference tzname[0] before calling tzset (explicitly
+**		or implicitly).
+**	2.	They might reference tzname[1] before calling tzset (explicitly
+**		or implicitly).
+**	3.	They might reference tzname[1] after setting to a time zone
+**		in which Daylight Saving Time is never observed.
+**	4.	They might reference tzname[0] after setting to a time zone
+**		in which Standard Time is never observed.
+**	5.	They might reference tm.TM_ZONE after calling offtime.
+** What's best to do in the above cases is open to debate;
+** for now, we just set things up so that in any of the five cases
+** WILDABBR is used. Another possibility: initialize tzname[0] to the
+** string "tzname[0] used before set", and similarly for the other cases.
+** And another: initialize tzname[0] to "ERA", with an explanation in the
+** manual page of what this "time zone abbreviation" means (doing this so
+** that tzname[0] has the "normal" length of three characters).
+*/
+#define WILDABBR	"   "
+#endif /* !defined WILDABBR */
+
+static char		wildabbr[] = WILDABBR;
+
+static const char	gmt[] = "GMT";
+
+/*
+** The DST rules to use if TZ has no rules and we can't load TZDEFRULES.
+** We default to US rules as of 1999-08-17.
+** POSIX 1003.1 section 8.1.1 says that the default DST rules are
+** implementation dependent; for historical reasons, US rules are a
+** common default.
+*/
+#ifndef TZDEFRULESTRING
+#define TZDEFRULESTRING ",M4.1.0,M10.5.0"
+#endif /* !defined TZDEFDST */
+
+struct ttinfo {				/* time type information */
+	long		tt_gmtoff;	/* UTC offset in seconds */
+	int		tt_isdst;	/* used to set tm_isdst */
+	int		tt_abbrind;	/* abbreviation list index */
+	int		tt_ttisstd;	/* TRUE if transition is std time */
+	int		tt_ttisgmt;	/* TRUE if transition is UTC */
+};
+
+struct lsinfo {				/* leap second information */
+	time_t		ls_trans;	/* transition time */
+	long		ls_corr;	/* correction to apply */
+};
+
+#define BIGGEST(a, b)	(((a) > (b)) ? (a) : (b))
+
+#ifdef TZNAME_MAX
+#define MY_TZNAME_MAX	TZNAME_MAX
+#endif /* defined TZNAME_MAX */
+#ifndef TZNAME_MAX
+#define MY_TZNAME_MAX	255
+#endif /* !defined TZNAME_MAX */
+
+struct state {
+	int		leapcnt;
+	int		timecnt;
+	int		typecnt;
+	int		charcnt;
+	int		goback;
+	int		goahead;
+	time_t		ats[TZ_MAX_TIMES];
+	unsigned char	types[TZ_MAX_TIMES];
+	struct ttinfo	ttis[TZ_MAX_TYPES];
+	char		chars[BIGGEST(BIGGEST(TZ_MAX_CHARS + 1, sizeof gmt),
+				(2 * (MY_TZNAME_MAX + 1)))];
+	struct lsinfo	lsis[TZ_MAX_LEAPS];
+};
+
+struct rule {
+	int		r_type;		/* type of rule--see below */
+	int		r_day;		/* day number of rule */
+	int		r_week;		/* week number of rule */
+	int		r_mon;		/* month number of rule */
+	long		r_time;		/* transition time of rule */
+};
+
+#define JULIAN_DAY		0	/* Jn - Julian day */
+#define DAY_OF_YEAR		1	/* n - day of year */
+#define MONTH_NTH_DAY_OF_WEEK	2	/* Mm.n.d - month, week, day of week */
+
+/*
+** Prototypes for static functions.
+*/
+
+static long		detzcode P((const char * codep));
+static time_t		detzcode64 P((const char * codep));
+static int		differ_by_repeat P((time_t t1, time_t t0));
+static const char *	getzname P((const char * strp));
+static const char *	getqzname P((const char * strp, const int delim));
+static const char *	getnum P((const char * strp, int * nump, int min,
+				int max));
+static const char *	getsecs P((const char * strp, long * secsp));
+static const char *	getoffset P((const char * strp, long * offsetp));
+static const char *	getrule P((const char * strp, struct rule * rulep));
+static void		gmtload P((struct state * sp));
+static struct tm *	gmtsub P((const time_t * timep, long offset,
+				struct tm * tmp));
+static struct tm *	localsub P((const time_t * timep, long offset,
+				struct tm * tmp, const struct state *sp));
+static int		increment_overflow P((int * number, int delta));
+static int		leaps_thru_end_of P((int y));
+static int		long_increment_overflow P((long * number, int delta));
+static int		long_normalize_overflow P((long * tensptr,
+				int * unitsptr, int base));
+static int		normalize_overflow P((int * tensptr, int * unitsptr,
+				int base));
+static void		settzname P((void));
+static time_t		time1 P((struct tm * tmp,
+				struct tm * (*funcp) P((const time_t *,
+				long, struct tm *, const struct state* sp)),
+				long offset, const struct state *	sp));
+static time_t		time2 P((struct tm *tmp,
+				struct tm * (*funcp) P((const time_t *,
+				long, struct tm*, const struct state* sp)),
+				long offset, int * okayp, const struct state *	sp));
+static time_t		time2sub P((struct tm *tmp,
+				struct tm * (*funcp) P((const time_t*, long, struct tm*,const struct state *sp)),
+				long offset, int * okayp, int do_norm_secs,
+                const struct state *sp));
+static struct tm *	timesub P((const time_t * timep, long offset,
+				const struct state * sp, struct tm * tmp));
+static int		tmcomp P((const struct tm * atmp,
+				const struct tm * btmp));
+static time_t		transtime P((time_t janfirst, int year,
+				const struct rule * rulep, long offset));
+static int		tzload P((const char * name, struct state * sp,
+				int doextend));
+static int		tzload_uncached P((const char * name, struct state * sp,
+				int doextend));
+static int		tzparse P((const char * name, struct state * sp,
+				int lastditch));
+
+#ifdef ALL_STATE
+static struct state *	gmtptr;
+#endif /* defined ALL_STATE */
+
+#ifndef ALL_STATE
+static struct state	gmtmem;
+#define gmtptr		(&gmtmem)
+#endif /* State Farm */
+
+#define CACHE_COUNT 4
+static char * g_cacheNames[CACHE_COUNT] = {0,0};
+static struct state	g_cacheStates[CACHE_COUNT];
+static int g_lastCache = 0;
+static struct state g_utc;
+unsigned char g_utcSet = 0;
+
+
+#ifndef TZ_STRLEN_MAX
+#define TZ_STRLEN_MAX 255
+#endif /* !defined TZ_STRLEN_MAX */
+
+static char		lcl_TZname[TZ_STRLEN_MAX + 1];
+static int		lcl_is_set;
+static int		gmt_is_set;
+
+char *			tzname[2] = {
+	wildabbr,
+	wildabbr
+};
+
+/*
+** Section 4.12.3 of X3.159-1989 requires that
+**	Except for the strftime function, these functions [asctime,
+**	ctime, gmtime, localtime] return values in one of two static
+**	objects: a broken-down time structure and an array of char.
+** Thanks to Paul Eggert for noting this.
+*/
+
+static struct tm	tm;
+
+#ifdef USG_COMPAT
+time_t			timezone = 0;
+int			daylight = 0;
+#endif /* defined USG_COMPAT */
+
+#ifdef ALTZONE
+time_t			altzone = 0;
+#endif /* defined ALTZONE */
+
+static long
+detzcode(codep)
+const char * const	codep;
+{
+	register long	result;
+	register int	i;
+
+	result = (codep[0] & 0x80) ? ~0L : 0;
+	for (i = 0; i < 4; ++i)
+		result = (result << 8) | (codep[i] & 0xff);
+	return result;
+}
+
+static time_t
+detzcode64(codep)
+const char * const	codep;
+{
+	register time_t	result;
+	register int	i;
+
+	result = (codep[0] & 0x80) ?  (~(int_fast64_t) 0) : 0;
+	for (i = 0; i < 8; ++i)
+		result = result * 256 + (codep[i] & 0xff);
+	return result;
+}
+
+static int
+differ_by_repeat(t1, t0)
+const time_t	t1;
+const time_t	t0;
+{
+	if (TYPE_INTEGRAL(time_t) &&
+		TYPE_BIT(time_t) - TYPE_SIGNED(time_t) < SECSPERREPEAT_BITS)
+			return 0;
+	return t1 - t0 == SECSPERREPEAT;
+}
+
+static int toint(unsigned char *s) {
+    return (s[0] << 24) | (s[1] << 16) | (s[2] << 8) | s[3];
+}
+
+static int
+tzload(const char *name, struct state * const sp, const int doextend)
+{
+    if (name) {
+        int i, err;
+        if (0 == strcmp(name, "UTC")) {
+            if (!g_utcSet) {
+                tzload_uncached(name, &g_utc, 1);
+                g_utcSet = 1;
+            }
+            //printf("tzload: utc\n");
+            *sp = g_utc;
+            return 0;
+        }
+        for (i=0; i<CACHE_COUNT; i++) {
+            if (g_cacheNames[i] && 0 == strcmp(name, g_cacheNames[i])) {
+                *sp = g_cacheStates[i];
+                //printf("tzload: hit: %s\n", name);
+                return 0;
+            }
+        }
+        //printf("tzload: miss: %s\n", name);
+        g_lastCache++;
+        if (g_lastCache >= CACHE_COUNT) {
+            g_lastCache = 0;
+        }
+        i = g_lastCache;
+        if (g_cacheNames[i]) {
+            free(g_cacheNames[i]);
+        }
+        err = tzload_uncached(name, &(g_cacheStates[i]), 1);
+        if (err == 0) {
+            g_cacheNames[i] = strdup(name);
+            *sp = g_cacheStates[i];
+            return 0;
+        } else {
+            g_cacheNames[i] = NULL;
+            return err;
+        }
+    }
+    return tzload_uncached(name, sp, doextend);
+}
+
+static int
+tzload_uncached(name, sp, doextend)
+register const char *		name;
+register struct state * const	sp;
+register const int		doextend;
+{
+	register const char *		p;
+	register int			i;
+	register int			fid;
+	register int			stored;
+	register int			nread;
+	union {
+		struct tzhead	tzhead;
+		char		buf[2 * sizeof(struct tzhead) +
+					2 * sizeof *sp +
+					4 * TZ_MAX_TIMES];
+	} u;
+    int                     toread = sizeof u.buf;
+
+	if (name == NULL && (name = TZDEFAULT) == NULL)
+		return -1;
+	{
+		register int	doaccess;
+		/*
+		** Section 4.9.1 of the C standard says that
+		** "FILENAME_MAX expands to an integral constant expression
+		** that is the size needed for an array of char large enough
+		** to hold the longest file name string that the implementation
+		** guarantees can be opened."
+		*/
+		char		fullname[FILENAME_MAX + 1];
+		const char	*origname = name;
+
+		if (name[0] == ':')
+			++name;
+		doaccess = name[0] == '/';
+		if (!doaccess) {
+			if ((p = TZDIR) == NULL)
+				return -1;
+			if ((strlen(p) + strlen(name) + 1) >= sizeof fullname)
+				return -1;
+			(void) strcpy(fullname, p);
+			(void) strcat(fullname, "/");
+			(void) strcat(fullname, name);
+			/*
+			** Set doaccess if '.' (as in "../") shows up in name.
+			*/
+			if (strchr(name, '.') != NULL)
+				doaccess = TRUE;
+			name = fullname;
+		}
+		if (doaccess && access(name, R_OK) != 0)
+			return -1;
+		if ((fid = open(name, OPEN_MODE)) == -1) {
+            char buf[READLEN];
+            char name[NAMELEN + 1];
+            int fidix = open(INDEXFILE, OPEN_MODE);
+            int off = -1;
+
+            if (fidix < 0) {
+                return -1;
+            }
+
+            while (read(fidix, buf, sizeof(buf)) == sizeof(buf)) {
+                memcpy(name, buf, NAMELEN);
+                name[NAMELEN] = '\0';
+
+                if (strcmp(name, origname) == 0) {
+                    off = toint((unsigned char *) buf + NAMELEN);
+                    toread = toint((unsigned char *) buf + NAMELEN + INTLEN);
+                    break;
+                }
+            }
+
+            close(fidix);
+
+            if (off < 0)
+                return -1;
+
+            fid = open(DATAFILE, OPEN_MODE);
+
+            if (fid < 0) {
+                return -1;
+            }
+
+            if (lseek(fid, off, SEEK_SET) < 0) {
+                return -1;
+            }
+        }
+	}
+	nread = read(fid, u.buf, toread);
+	if (close(fid) < 0 || nread <= 0)
+		return -1;
+	for (stored = 4; stored <= 8; stored *= 2) {
+		int		ttisstdcnt;
+		int		ttisgmtcnt;
+
+		ttisstdcnt = (int) detzcode(u.tzhead.tzh_ttisstdcnt);
+		ttisgmtcnt = (int) detzcode(u.tzhead.tzh_ttisgmtcnt);
+		sp->leapcnt = (int) detzcode(u.tzhead.tzh_leapcnt);
+		sp->timecnt = (int) detzcode(u.tzhead.tzh_timecnt);
+		sp->typecnt = (int) detzcode(u.tzhead.tzh_typecnt);
+		sp->charcnt = (int) detzcode(u.tzhead.tzh_charcnt);
+		p = u.tzhead.tzh_charcnt + sizeof u.tzhead.tzh_charcnt;
+		if (sp->leapcnt < 0 || sp->leapcnt > TZ_MAX_LEAPS ||
+			sp->typecnt <= 0 || sp->typecnt > TZ_MAX_TYPES ||
+			sp->timecnt < 0 || sp->timecnt > TZ_MAX_TIMES ||
+			sp->charcnt < 0 || sp->charcnt > TZ_MAX_CHARS ||
+			(ttisstdcnt != sp->typecnt && ttisstdcnt != 0) ||
+			(ttisgmtcnt != sp->typecnt && ttisgmtcnt != 0))
+				return -1;
+		if (nread - (p - u.buf) <
+			sp->timecnt * stored +		/* ats */
+			sp->timecnt +			/* types */
+			sp->typecnt * 6 +		/* ttinfos */
+			sp->charcnt +			/* chars */
+			sp->leapcnt * (stored + 4) +	/* lsinfos */
+			ttisstdcnt +			/* ttisstds */
+			ttisgmtcnt)			/* ttisgmts */
+				return -1;
+		for (i = 0; i < sp->timecnt; ++i) {
+			sp->ats[i] = (stored == 4) ?
+				detzcode(p) : detzcode64(p);
+			p += stored;
+		}
+		for (i = 0; i < sp->timecnt; ++i) {
+			sp->types[i] = (unsigned char) *p++;
+			if (sp->types[i] >= sp->typecnt)
+				return -1;
+		}
+		for (i = 0; i < sp->typecnt; ++i) {
+			register struct ttinfo *	ttisp;
+
+			ttisp = &sp->ttis[i];
+			ttisp->tt_gmtoff = detzcode(p);
+			p += 4;
+			ttisp->tt_isdst = (unsigned char) *p++;
+			if (ttisp->tt_isdst != 0 && ttisp->tt_isdst != 1)
+				return -1;
+			ttisp->tt_abbrind = (unsigned char) *p++;
+			if (ttisp->tt_abbrind < 0 ||
+				ttisp->tt_abbrind > sp->charcnt)
+					return -1;
+		}
+		for (i = 0; i < sp->charcnt; ++i)
+			sp->chars[i] = *p++;
+		sp->chars[i] = '\0';	/* ensure '\0' at end */
+		for (i = 0; i < sp->leapcnt; ++i) {
+			register struct lsinfo *	lsisp;
+
+			lsisp = &sp->lsis[i];
+			lsisp->ls_trans = (stored == 4) ?
+				detzcode(p) : detzcode64(p);
+			p += stored;
+			lsisp->ls_corr = detzcode(p);
+			p += 4;
+		}
+		for (i = 0; i < sp->typecnt; ++i) {
+			register struct ttinfo *	ttisp;
+
+			ttisp = &sp->ttis[i];
+			if (ttisstdcnt == 0)
+				ttisp->tt_ttisstd = FALSE;
+			else {
+				ttisp->tt_ttisstd = *p++;
+				if (ttisp->tt_ttisstd != TRUE &&
+					ttisp->tt_ttisstd != FALSE)
+						return -1;
+			}
+		}
+		for (i = 0; i < sp->typecnt; ++i) {
+			register struct ttinfo *	ttisp;
+
+			ttisp = &sp->ttis[i];
+			if (ttisgmtcnt == 0)
+				ttisp->tt_ttisgmt = FALSE;
+			else {
+				ttisp->tt_ttisgmt = *p++;
+				if (ttisp->tt_ttisgmt != TRUE &&
+					ttisp->tt_ttisgmt != FALSE)
+						return -1;
+			}
+		}
+		/*
+		** Out-of-sort ats should mean we're running on a
+		** signed time_t system but using a data file with
+		** unsigned values (or vice versa).
+		*/
+		for (i = 0; i < sp->timecnt - 2; ++i)
+			if (sp->ats[i] > sp->ats[i + 1]) {
+				++i;
+				if (TYPE_SIGNED(time_t)) {
+					/*
+					** Ignore the end (easy).
+					*/
+					sp->timecnt = i;
+				} else {
+					/*
+					** Ignore the beginning (harder).
+					*/
+					register int	j;
+
+					for (j = 0; j + i < sp->timecnt; ++j) {
+						sp->ats[j] = sp->ats[j + i];
+						sp->types[j] = sp->types[j + i];
+					}
+					sp->timecnt = j;
+				}
+				break;
+			}
+		/*
+		** If this is an old file, we're done.
+		*/
+		if (u.tzhead.tzh_version[0] == '\0')
+			break;
+		nread -= p - u.buf;
+		for (i = 0; i < nread; ++i)
+			u.buf[i] = p[i];
+		/*
+		** If this is a narrow integer time_t system, we're done.
+		*/
+		if (stored >= (int) sizeof(time_t) && TYPE_INTEGRAL(time_t))
+			break;
+	}
+	if (doextend && nread > 2 &&
+		u.buf[0] == '\n' && u.buf[nread - 1] == '\n' &&
+		sp->typecnt + 2 <= TZ_MAX_TYPES) {
+			struct state	ts;
+			register int	result;
+
+			u.buf[nread - 1] = '\0';
+			result = tzparse(&u.buf[1], &ts, FALSE);
+			if (result == 0 && ts.typecnt == 2 &&
+				sp->charcnt + ts.charcnt <= TZ_MAX_CHARS) {
+					for (i = 0; i < 2; ++i)
+						ts.ttis[i].tt_abbrind +=
+							sp->charcnt;
+					for (i = 0; i < ts.charcnt; ++i)
+						sp->chars[sp->charcnt++] =
+							ts.chars[i];
+					i = 0;
+					while (i < ts.timecnt &&
+						ts.ats[i] <=
+						sp->ats[sp->timecnt - 1])
+							++i;
+					while (i < ts.timecnt &&
+					    sp->timecnt < TZ_MAX_TIMES) {
+						sp->ats[sp->timecnt] =
+							ts.ats[i];
+						sp->types[sp->timecnt] =
+							sp->typecnt +
+							ts.types[i];
+						++sp->timecnt;
+						++i;
+					}
+					sp->ttis[sp->typecnt++] = ts.ttis[0];
+					sp->ttis[sp->typecnt++] = ts.ttis[1];
+			}
+	}
+	i = 2 * YEARSPERREPEAT;
+	sp->goback = sp->goahead = sp->timecnt > i;
+	sp->goback &= sp->types[i] == sp->types[0] &&
+		differ_by_repeat(sp->ats[i], sp->ats[0]);
+	sp->goahead &=
+		sp->types[sp->timecnt - 1] == sp->types[sp->timecnt - 1 - i] &&
+		differ_by_repeat(sp->ats[sp->timecnt - 1],
+			 sp->ats[sp->timecnt - 1 - i]);
+	return 0;
+}
+
+static const int	mon_lengths[2][MONSPERYEAR] = {
+	{ 31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31 },
+	{ 31, 29, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31 }
+};
+
+static const int	year_lengths[2] = {
+	DAYSPERNYEAR, DAYSPERLYEAR
+};
+
+/*
+** Given a pointer into a time zone string, scan until a character that is not
+** a valid character in a zone name is found. Return a pointer to that
+** character.
+*/
+
+static const char *
+getzname(strp)
+register const char *	strp;
+{
+	register char	c;
+
+	while ((c = *strp) != '\0' && !is_digit(c) && c != ',' && c != '-' &&
+		c != '+')
+			++strp;
+	return strp;
+}
+
+/*
+** Given a pointer into an extended time zone string, scan until the ending
+** delimiter of the zone name is located. Return a pointer to the delimiter.
+**
+** As with getzname above, the legal character set is actually quite
+** restricted, with other characters producing undefined results.
+** We don't do any checking here; checking is done later in common-case code.
+*/
+
+static const char *
+getqzname(register const char *strp, const int delim)
+{
+	register int	c;
+
+	while ((c = *strp) != '\0' && c != delim)
+		++strp;
+	return strp;
+}
+
+/*
+** Given a pointer into a time zone string, extract a number from that string.
+** Check that the number is within a specified range; if it is not, return
+** NULL.
+** Otherwise, return a pointer to the first character not part of the number.
+*/
+
+static const char *
+getnum(strp, nump, min, max)
+register const char *	strp;
+int * const		nump;
+const int		min;
+const int		max;
+{
+	register char	c;
+	register int	num;
+
+	if (strp == NULL || !is_digit(c = *strp))
+		return NULL;
+	num = 0;
+	do {
+		num = num * 10 + (c - '0');
+		if (num > max)
+			return NULL;	/* illegal value */
+		c = *++strp;
+	} while (is_digit(c));
+	if (num < min)
+		return NULL;		/* illegal value */
+	*nump = num;
+	return strp;
+}
+
+/*
+** Given a pointer into a time zone string, extract a number of seconds,
+** in hh[:mm[:ss]] form, from the string.
+** If any error occurs, return NULL.
+** Otherwise, return a pointer to the first character not part of the number
+** of seconds.
+*/
+
+static const char *
+getsecs(strp, secsp)
+register const char *	strp;
+long * const		secsp;
+{
+	int	num;
+
+	/*
+	** `HOURSPERDAY * DAYSPERWEEK - 1' allows quasi-Posix rules like
+	** "M10.4.6/26", which does not conform to Posix,
+	** but which specifies the equivalent of
+	** ``02:00 on the first Sunday on or after 23 Oct''.
+	*/
+	strp = getnum(strp, &num, 0, HOURSPERDAY * DAYSPERWEEK - 1);
+	if (strp == NULL)
+		return NULL;
+	*secsp = num * (long) SECSPERHOUR;
+	if (*strp == ':') {
+		++strp;
+		strp = getnum(strp, &num, 0, MINSPERHOUR - 1);
+		if (strp == NULL)
+			return NULL;
+		*secsp += num * SECSPERMIN;
+		if (*strp == ':') {
+			++strp;
+			/* `SECSPERMIN' allows for leap seconds. */
+			strp = getnum(strp, &num, 0, SECSPERMIN);
+			if (strp == NULL)
+				return NULL;
+			*secsp += num;
+		}
+	}
+	return strp;
+}
+
+/*
+** Given a pointer into a time zone string, extract an offset, in
+** [+-]hh[:mm[:ss]] form, from the string.
+** If any error occurs, return NULL.
+** Otherwise, return a pointer to the first character not part of the time.
+*/
+
+static const char *
+getoffset(strp, offsetp)
+register const char *	strp;
+long * const		offsetp;
+{
+	register int	neg = 0;
+
+	if (*strp == '-') {
+		neg = 1;
+		++strp;
+	} else if (*strp == '+')
+		++strp;
+	strp = getsecs(strp, offsetp);
+	if (strp == NULL)
+		return NULL;		/* illegal time */
+	if (neg)
+		*offsetp = -*offsetp;
+	return strp;
+}
+
+/*
+** Given a pointer into a time zone string, extract a rule in the form
+** date[/time]. See POSIX section 8 for the format of "date" and "time".
+** If a valid rule is not found, return NULL.
+** Otherwise, return a pointer to the first character not part of the rule.
+*/
+
+static const char *
+getrule(strp, rulep)
+const char *			strp;
+register struct rule * const	rulep;
+{
+	if (*strp == 'J') {
+		/*
+		** Julian day.
+		*/
+		rulep->r_type = JULIAN_DAY;
+		++strp;
+		strp = getnum(strp, &rulep->r_day, 1, DAYSPERNYEAR);
+	} else if (*strp == 'M') {
+		/*
+		** Month, week, day.
+		*/
+		rulep->r_type = MONTH_NTH_DAY_OF_WEEK;
+		++strp;
+		strp = getnum(strp, &rulep->r_mon, 1, MONSPERYEAR);
+		if (strp == NULL)
+			return NULL;
+		if (*strp++ != '.')
+			return NULL;
+		strp = getnum(strp, &rulep->r_week, 1, 5);
+		if (strp == NULL)
+			return NULL;
+		if (*strp++ != '.')
+			return NULL;
+		strp = getnum(strp, &rulep->r_day, 0, DAYSPERWEEK - 1);
+	} else if (is_digit(*strp)) {
+		/*
+		** Day of year.
+		*/
+		rulep->r_type = DAY_OF_YEAR;
+		strp = getnum(strp, &rulep->r_day, 0, DAYSPERLYEAR - 1);
+	} else	return NULL;		/* invalid format */
+	if (strp == NULL)
+		return NULL;
+	if (*strp == '/') {
+		/*
+		** Time specified.
+		*/
+		++strp;
+		strp = getsecs(strp, &rulep->r_time);
+	} else	rulep->r_time = 2 * SECSPERHOUR;	/* default = 2:00:00 */
+	return strp;
+}
+
+/*
+** Given the Epoch-relative time of January 1, 00:00:00 UTC, in a year, the
+** year, a rule, and the offset from UTC at the time that rule takes effect,
+** calculate the Epoch-relative time that rule takes effect.
+*/
+
+static time_t
+transtime(janfirst, year, rulep, offset)
+const time_t				janfirst;
+const int				year;
+register const struct rule * const	rulep;
+const long				offset;
+{
+	register int	leapyear;
+	register time_t	value;
+	register int	i;
+	int		d, m1, yy0, yy1, yy2, dow;
+
+	INITIALIZE(value);
+	leapyear = isleap(year);
+	switch (rulep->r_type) {
+
+	case JULIAN_DAY:
+		/*
+		** Jn - Julian day, 1 == January 1, 60 == March 1 even in leap
+		** years.
+		** In non-leap years, or if the day number is 59 or less, just
+		** add SECSPERDAY times the day number-1 to the time of
+		** January 1, midnight, to get the day.
+		*/
+		value = janfirst + (rulep->r_day - 1) * SECSPERDAY;
+		if (leapyear && rulep->r_day >= 60)
+			value += SECSPERDAY;
+		break;
+
+	case DAY_OF_YEAR:
+		/*
+		** n - day of year.
+		** Just add SECSPERDAY times the day number to the time of
+		** January 1, midnight, to get the day.
+		*/
+		value = janfirst + rulep->r_day * SECSPERDAY;
+		break;
+
+	case MONTH_NTH_DAY_OF_WEEK:
+		/*
+		** Mm.n.d - nth "dth day" of month m.
+		*/
+		value = janfirst;
+		for (i = 0; i < rulep->r_mon - 1; ++i)
+			value += mon_lengths[leapyear][i] * SECSPERDAY;
+
+		/*
+		** Use Zeller's Congruence to get day-of-week of first day of
+		** month.
+		*/
+		m1 = (rulep->r_mon + 9) % 12 + 1;
+		yy0 = (rulep->r_mon <= 2) ? (year - 1) : year;
+		yy1 = yy0 / 100;
+		yy2 = yy0 % 100;
+		dow = ((26 * m1 - 2) / 10 +
+			1 + yy2 + yy2 / 4 + yy1 / 4 - 2 * yy1) % 7;
+		if (dow < 0)
+			dow += DAYSPERWEEK;
+
+		/*
+		** "dow" is the day-of-week of the first day of the month. Get
+		** the day-of-month (zero-origin) of the first "dow" day of the
+		** month.
+		*/
+		d = rulep->r_day - dow;
+		if (d < 0)
+			d += DAYSPERWEEK;
+		for (i = 1; i < rulep->r_week; ++i) {
+			if (d + DAYSPERWEEK >=
+				mon_lengths[leapyear][rulep->r_mon - 1])
+					break;
+			d += DAYSPERWEEK;
+		}
+
+		/*
+		** "d" is the day-of-month (zero-origin) of the day we want.
+		*/
+		value += d * SECSPERDAY;
+		break;
+	}
+
+	/*
+	** "value" is the Epoch-relative time of 00:00:00 UTC on the day in
+	** question. To get the Epoch-relative time of the specified local
+	** time on that day, add the transition time and the current offset
+	** from UTC.
+	*/
+	return value + rulep->r_time + offset;
+}
+
+/*
+** Given a POSIX section 8-style TZ string, fill in the rule tables as
+** appropriate.
+*/
+
+static int
+tzparse(name, sp, lastditch)
+const char *			name;
+register struct state * const	sp;
+const int			lastditch;
+{
+	const char *			stdname;
+	const char *			dstname;
+	size_t				stdlen;
+	size_t				dstlen;
+	long				stdoffset;
+	long				dstoffset;
+	register time_t *		atp;
+	register unsigned char *	typep;
+	register char *			cp;
+	register int			load_result;
+
+	INITIALIZE(dstname);
+	stdname = name;
+	if (lastditch) {
+		stdlen = strlen(name);	/* length of standard zone name */
+		name += stdlen;
+		if (stdlen >= sizeof sp->chars)
+			stdlen = (sizeof sp->chars) - 1;
+		stdoffset = 0;
+	} else {
+		if (*name == '<') {
+			name++;
+			stdname = name;
+			name = getqzname(name, '>');
+			if (*name != '>')
+				return (-1);
+			stdlen = name - stdname;
+			name++;
+		} else {
+			name = getzname(name);
+			stdlen = name - stdname;
+		}
+		if (*name == '\0')
+			return -1;
+		name = getoffset(name, &stdoffset);
+		if (name == NULL)
+			return -1;
+	}
+	load_result = tzload(TZDEFRULES, sp, FALSE);
+	if (load_result != 0)
+		sp->leapcnt = 0;		/* so, we're off a little */
+	sp->timecnt = 0;
+	if (*name != '\0') {
+		if (*name == '<') {
+			dstname = ++name;
+			name = getqzname(name, '>');
+			if (*name != '>')
+				return -1;
+			dstlen = name - dstname;
+			name++;
+		} else {
+			dstname = name;
+			name = getzname(name);
+			dstlen = name - dstname; /* length of DST zone name */
+		}
+		if (*name != '\0' && *name != ',' && *name != ';') {
+			name = getoffset(name, &dstoffset);
+			if (name == NULL)
+				return -1;
+		} else	dstoffset = stdoffset - SECSPERHOUR;
+		if (*name == '\0' && load_result != 0)
+			name = TZDEFRULESTRING;
+		if (*name == ',' || *name == ';') {
+			struct rule	start;
+			struct rule	end;
+			register int	year;
+			register time_t	janfirst;
+			time_t		starttime;
+			time_t		endtime;
+
+			++name;
+			if ((name = getrule(name, &start)) == NULL)
+				return -1;
+			if (*name++ != ',')
+				return -1;
+			if ((name = getrule(name, &end)) == NULL)
+				return -1;
+			if (*name != '\0')
+				return -1;
+			sp->typecnt = 2;	/* standard time and DST */
+			/*
+			** Two transitions per year, from EPOCH_YEAR forward.
+			*/
+			sp->ttis[0].tt_gmtoff = -dstoffset;
+			sp->ttis[0].tt_isdst = 1;
+			sp->ttis[0].tt_abbrind = stdlen + 1;
+			sp->ttis[1].tt_gmtoff = -stdoffset;
+			sp->ttis[1].tt_isdst = 0;
+			sp->ttis[1].tt_abbrind = 0;
+			atp = sp->ats;
+			typep = sp->types;
+			janfirst = 0;
+			for (year = EPOCH_YEAR;
+			    sp->timecnt + 2 <= TZ_MAX_TIMES;
+			    ++year) {
+			    	time_t	newfirst;
+
+				starttime = transtime(janfirst, year, &start,
+					stdoffset);
+				endtime = transtime(janfirst, year, &end,
+					dstoffset);
+				if (starttime > endtime) {
+					*atp++ = endtime;
+					*typep++ = 1;	/* DST ends */
+					*atp++ = starttime;
+					*typep++ = 0;	/* DST begins */
+				} else {
+					*atp++ = starttime;
+					*typep++ = 0;	/* DST begins */
+					*atp++ = endtime;
+					*typep++ = 1;	/* DST ends */
+				}
+				sp->timecnt += 2;
+				newfirst = janfirst;
+				newfirst += year_lengths[isleap(year)] *
+					SECSPERDAY;
+				if (newfirst <= janfirst)
+					break;
+				janfirst = newfirst;
+			}
+		} else {
+			register long	theirstdoffset;
+			register long	theirdstoffset;
+			register long	theiroffset;
+			register int	isdst;
+			register int	i;
+			register int	j;
+
+			if (*name != '\0')
+				return -1;
+			/*
+			** Initial values of theirstdoffset and theirdstoffset.
+			*/
+			theirstdoffset = 0;
+			for (i = 0; i < sp->timecnt; ++i) {
+				j = sp->types[i];
+				if (!sp->ttis[j].tt_isdst) {
+					theirstdoffset =
+						-sp->ttis[j].tt_gmtoff;
+					break;
+				}
+			}
+			theirdstoffset = 0;
+			for (i = 0; i < sp->timecnt; ++i) {
+				j = sp->types[i];
+				if (sp->ttis[j].tt_isdst) {
+					theirdstoffset =
+						-sp->ttis[j].tt_gmtoff;
+					break;
+				}
+			}
+			/*
+			** Initially we're assumed to be in standard time.
+			*/
+			isdst = FALSE;
+			theiroffset = theirstdoffset;
+			/*
+			** Now juggle transition times and types
+			** tracking offsets as you do.
+			*/
+			for (i = 0; i < sp->timecnt; ++i) {
+				j = sp->types[i];
+				sp->types[i] = sp->ttis[j].tt_isdst;
+				if (sp->ttis[j].tt_ttisgmt) {
+					/* No adjustment to transition time */
+				} else {
+					/*
+					** If summer time is in effect, and the
+					** transition time was not specified as
+					** standard time, add the summer time
+					** offset to the transition time;
+					** otherwise, add the standard time
+					** offset to the transition time.
+					*/
+					/*
+					** Transitions from DST to DDST
+					** will effectively disappear since
+					** POSIX provides for only one DST
+					** offset.
+					*/
+					if (isdst && !sp->ttis[j].tt_ttisstd) {
+						sp->ats[i] += dstoffset -
+							theirdstoffset;
+					} else {
+						sp->ats[i] += stdoffset -
+							theirstdoffset;
+					}
+				}
+				theiroffset = -sp->ttis[j].tt_gmtoff;
+				if (sp->ttis[j].tt_isdst)
+					theirdstoffset = theiroffset;
+				else	theirstdoffset = theiroffset;
+			}
+			/*
+			** Finally, fill in ttis.
+			** ttisstd and ttisgmt need not be handled.
+			*/
+			sp->ttis[0].tt_gmtoff = -stdoffset;
+			sp->ttis[0].tt_isdst = FALSE;
+			sp->ttis[0].tt_abbrind = 0;
+			sp->ttis[1].tt_gmtoff = -dstoffset;
+			sp->ttis[1].tt_isdst = TRUE;
+			sp->ttis[1].tt_abbrind = stdlen + 1;
+			sp->typecnt = 2;
+		}
+	} else {
+		dstlen = 0;
+		sp->typecnt = 1;		/* only standard time */
+		sp->timecnt = 0;
+		sp->ttis[0].tt_gmtoff = -stdoffset;
+		sp->ttis[0].tt_isdst = 0;
+		sp->ttis[0].tt_abbrind = 0;
+	}
+	sp->charcnt = stdlen + 1;
+	if (dstlen != 0)
+		sp->charcnt += dstlen + 1;
+	if ((size_t) sp->charcnt > sizeof sp->chars)
+		return -1;
+	cp = sp->chars;
+	(void) strncpy(cp, stdname, stdlen);
+	cp += stdlen;
+	*cp++ = '\0';
+	if (dstlen != 0) {
+		(void) strncpy(cp, dstname, dstlen);
+		*(cp + dstlen) = '\0';
+	}
+	return 0;
+}
+
+static void
+gmtload(sp)
+struct state * const	sp;
+{
+	if (tzload(gmt, sp, TRUE) != 0)
+		(void) tzparse(gmt, sp, TRUE);
+}
+
+/*
+** The easy way to behave "as if no library function calls" localtime
+** is to not call it--so we drop its guts into "localsub", which can be
+** freely called. (And no, the PANS doesn't require the above behavior--
+** but it *is* desirable.)
+**
+** The unused offset argument is for the benefit of mktime variants.
+*/
+
+/*ARGSUSED*/
+static struct tm *
+localsub(timep, offset, tmp, sp)
+const time_t * const	timep;
+const long		offset;
+struct tm * const	tmp;
+const struct state *		sp;
+{
+	register const struct ttinfo *	ttisp;
+	register int			i;
+	register struct tm *		result;
+	const time_t			t = *timep;
+
+#ifdef ALL_STATE
+	if (sp == NULL)
+		return gmtsub(timep, offset, tmp);
+#endif /* defined ALL_STATE */
+	if ((sp->goback && t < sp->ats[0]) ||
+		(sp->goahead && t > sp->ats[sp->timecnt - 1])) {
+			time_t			newt = t;
+			register time_t		seconds;
+			register time_t		tcycles;
+			register int_fast64_t	icycles;
+
+			if (t < sp->ats[0])
+				seconds = sp->ats[0] - t;
+			else	seconds = t - sp->ats[sp->timecnt - 1];
+			--seconds;
+			tcycles = seconds / YEARSPERREPEAT / AVGSECSPERYEAR;
+			++tcycles;
+			icycles = tcycles;
+			if (tcycles - icycles >= 1 || icycles - tcycles >= 1)
+				return NULL;
+			seconds = icycles;
+			seconds *= YEARSPERREPEAT;
+			seconds *= AVGSECSPERYEAR;
+			if (t < sp->ats[0])
+				newt += seconds;
+			else	newt -= seconds;
+			if (newt < sp->ats[0] ||
+				newt > sp->ats[sp->timecnt - 1])
+					return NULL;	/* "cannot happen" */
+			result = localsub(&newt, offset, tmp, sp);
+			if (result == tmp) {
+				register time_t	newy;
+
+				newy = tmp->tm_year;
+				if (t < sp->ats[0])
+					newy -= icycles * YEARSPERREPEAT;
+				else	newy += icycles * YEARSPERREPEAT;
+				tmp->tm_year = newy;
+				if (tmp->tm_year != newy)
+					return NULL;
+			}
+			return result;
+	}
+	if (sp->timecnt == 0 || t < sp->ats[0]) {
+		i = 0;
+		while (sp->ttis[i].tt_isdst)
+			if (++i >= sp->typecnt) {
+				i = 0;
+				break;
+			}
+	} else {
+		register int	lo = 1;
+		register int	hi = sp->timecnt;
+
+		while (lo < hi) {
+			register int	mid = (lo + hi) >> 1;
+
+			if (t < sp->ats[mid])
+				hi = mid;
+			else	lo = mid + 1;
+		}
+		i = (int) sp->types[lo - 1];
+	}
+	ttisp = &sp->ttis[i];
+	/*
+	** To get (wrong) behavior that's compatible with System V Release 2.0
+	** you'd replace the statement below with
+	**	t += ttisp->tt_gmtoff;
+	**	timesub(&t, 0L, sp, tmp);
+	*/
+	result = timesub(&t, ttisp->tt_gmtoff, sp, tmp);
+	tmp->tm_isdst = ttisp->tt_isdst;
+#ifdef HAVE_TM_GMTOFF
+	tmp->tm_gmtoff = ttisp->tt_gmtoff;
+#endif
+	tzname[tmp->tm_isdst] = &sp->chars[ttisp->tt_abbrind];
+#ifdef TM_ZONE
+	tmp->TM_ZONE = &sp->chars[ttisp->tt_abbrind];
+#endif /* defined TM_ZONE */
+	return result;
+}
+
+
+// ============================================================================
+#if 0
+struct tm *
+localtime(timep)
+const time_t * const	timep;
+{
+	tzset();
+	return localsub(timep, 0L, &tm);
+}
+#endif
+
+/*
+** Re-entrant version of localtime.
+*/
+
+// ============================================================================
+void
+localtime_tz(const time_t * const timep, struct tm * tmp, const char* tz)
+{
+    struct state st;
+    if (tzload(tz, &st, TRUE) != 0) {
+        // not sure what's best here, but for now, we fall back to gmt
+        gmtload(&st);
+    }
+
+	localsub(timep, 0L, tmp, &st);
+}
+
+/*
+** gmtsub is to gmtime as localsub is to localtime.
+*/
+
+static struct tm *
+gmtsub(timep, offset, tmp)
+const time_t * const	timep;
+const long		offset;
+struct tm * const	tmp;
+{
+	register struct tm *	result;
+
+	if (!gmt_is_set) {
+		gmt_is_set = TRUE;
+#ifdef ALL_STATE
+		gmtptr = (struct state *) malloc(sizeof *gmtptr);
+		if (gmtptr != NULL)
+#endif /* defined ALL_STATE */
+			gmtload(gmtptr);
+	}
+	result = timesub(timep, offset, gmtptr, tmp);
+#ifdef TM_ZONE
+	/*
+	** Could get fancy here and deliver something such as
+	** "UTC+xxxx" or "UTC-xxxx" if offset is non-zero,
+	** but this is no time for a treasure hunt.
+	*/
+	if (offset != 0)
+		tmp->TM_ZONE = wildabbr;
+	else {
+#ifdef ALL_STATE
+		if (gmtptr == NULL)
+			tmp->TM_ZONE = gmt;
+		else	tmp->TM_ZONE = gmtptr->chars;
+#endif /* defined ALL_STATE */
+#ifndef ALL_STATE
+		tmp->TM_ZONE = gmtptr->chars;
+#endif /* State Farm */
+	}
+#endif /* defined TM_ZONE */
+	return result;
+}
+
+// ============================================================================
+#if 0
+struct tm *
+gmtime(timep)
+const time_t * const	timep;
+{
+	return gmtsub(timep, 0L, &tm);
+}
+#endif
+
+/*
+* Re-entrant version of gmtime.
+*/
+
+// ============================================================================
+#if 0
+struct tm *
+gmtime_r(timep, tmp)
+const time_t * const	timep;
+struct tm *		tmp;
+{
+	return gmtsub(timep, 0L, tmp);
+}
+#endif
+
+#ifdef STD_INSPIRED
+
+// ============================================================================
+#if 0
+struct tm *
+offtime(timep, offset)
+const time_t * const	timep;
+const long		offset;
+{
+	return gmtsub(timep, offset, &tm);
+}
+#endif
+
+#endif /* defined STD_INSPIRED */
+
+/*
+** Return the number of leap years through the end of the given year
+** where, to make the math easy, the answer for year zero is defined as zero.
+*/
+
+static int
+leaps_thru_end_of(y)
+register const int	y;
+{
+	return (y >= 0) ? (y / 4 - y / 100 + y / 400) :
+		-(leaps_thru_end_of(-(y + 1)) + 1);
+}
+
+static struct tm *
+timesub(timep, offset, sp, tmp)
+const time_t * const			timep;
+const long				offset;
+register const struct state * const	sp;
+register struct tm * const		tmp;
+{
+	register const struct lsinfo *	lp;
+	register time_t			tdays;
+	register int			idays;	/* unsigned would be so 2003 */
+	register long			rem;
+	int				y;
+	register const int *		ip;
+	register long			corr;
+	register int			hit;
+	register int			i;
+
+	corr = 0;
+	hit = 0;
+#ifdef ALL_STATE
+	i = (sp == NULL) ? 0 : sp->leapcnt;
+#endif /* defined ALL_STATE */
+#ifndef ALL_STATE
+	i = sp->leapcnt;
+#endif /* State Farm */
+	while (--i >= 0) {
+		lp = &sp->lsis[i];
+		if (*timep >= lp->ls_trans) {
+			if (*timep == lp->ls_trans) {
+				hit = ((i == 0 && lp->ls_corr > 0) ||
+					lp->ls_corr > sp->lsis[i - 1].ls_corr);
+				if (hit)
+					while (i > 0 &&
+						sp->lsis[i].ls_trans ==
+						sp->lsis[i - 1].ls_trans + 1 &&
+						sp->lsis[i].ls_corr ==
+						sp->lsis[i - 1].ls_corr + 1) {
+							++hit;
+							--i;
+					}
+			}
+			corr = lp->ls_corr;
+			break;
+		}
+	}
+	y = EPOCH_YEAR;
+	tdays = *timep / SECSPERDAY;
+	rem = *timep - tdays * SECSPERDAY;
+	while (tdays < 0 || tdays >= year_lengths[isleap(y)]) {
+		int		newy;
+		register time_t	tdelta;
+		register int	idelta;
+		register int	leapdays;
+
+		tdelta = tdays / DAYSPERLYEAR;
+		idelta = tdelta;
+		if (tdelta - idelta >= 1 || idelta - tdelta >= 1)
+			return NULL;
+		if (idelta == 0)
+			idelta = (tdays < 0) ? -1 : 1;
+		newy = y;
+		if (increment_overflow(&newy, idelta))
+			return NULL;
+		leapdays = leaps_thru_end_of(newy - 1) -
+			leaps_thru_end_of(y - 1);
+		tdays -= ((time_t) newy - y) * DAYSPERNYEAR;
+		tdays -= leapdays;
+		y = newy;
+	}
+	{
+		register long	seconds;
+
+		seconds = tdays * SECSPERDAY + 0.5;
+		tdays = seconds / SECSPERDAY;
+		rem += seconds - tdays * SECSPERDAY;
+	}
+	/*
+	** Given the range, we can now fearlessly cast...
+	*/
+	idays = tdays;
+	rem += offset - corr;
+	while (rem < 0) {
+		rem += SECSPERDAY;
+		--idays;
+	}
+	while (rem >= SECSPERDAY) {
+		rem -= SECSPERDAY;
+		++idays;
+	}
+	while (idays < 0) {
+		if (increment_overflow(&y, -1))
+			return NULL;
+		idays += year_lengths[isleap(y)];
+	}
+	while (idays >= year_lengths[isleap(y)]) {
+		idays -= year_lengths[isleap(y)];
+		if (increment_overflow(&y, 1))
+			return NULL;
+	}
+	tmp->tm_year = y;
+	if (increment_overflow(&tmp->tm_year, -TM_YEAR_BASE))
+		return NULL;
+	tmp->tm_yday = idays;
+	/*
+	** The "extra" mods below avoid overflow problems.
+	*/
+	tmp->tm_wday = EPOCH_WDAY +
+		((y - EPOCH_YEAR) % DAYSPERWEEK) *
+		(DAYSPERNYEAR % DAYSPERWEEK) +
+		leaps_thru_end_of(y - 1) -
+		leaps_thru_end_of(EPOCH_YEAR - 1) +
+		idays;
+	tmp->tm_wday %= DAYSPERWEEK;
+	if (tmp->tm_wday < 0)
+		tmp->tm_wday += DAYSPERWEEK;
+	tmp->tm_hour = (int) (rem / SECSPERHOUR);
+	rem %= SECSPERHOUR;
+	tmp->tm_min = (int) (rem / SECSPERMIN);
+	/*
+	** A positive leap second requires a special
+	** representation. This uses "... ??:59:60" et seq.
+	*/
+	tmp->tm_sec = (int) (rem % SECSPERMIN) + hit;
+	ip = mon_lengths[isleap(y)];
+	for (tmp->tm_mon = 0; idays >= ip[tmp->tm_mon]; ++(tmp->tm_mon))
+		idays -= ip[tmp->tm_mon];
+	tmp->tm_mday = (int) (idays + 1);
+	tmp->tm_isdst = 0;
+#ifdef TM_GMTOFF
+	tmp->TM_GMTOFF = offset;
+#endif /* defined TM_GMTOFF */
+	return tmp;
+}
+
+// ============================================================================
+#if 0
+char *
+ctime(timep)
+const time_t * const	timep;
+{
+/*
+** Section 4.12.3.2 of X3.159-1989 requires that
+**	The ctime function converts the calendar time pointed to by timer
+**	to local time in the form of a string. It is equivalent to
+**		asctime(localtime(timer))
+*/
+	return asctime(localtime(timep));
+}
+#endif
+
+// ============================================================================
+#if 0
+char *
+ctime_r(timep, buf)
+const time_t * const	timep;
+char *			buf;
+{
+	struct tm	mytm;
+
+	return asctime_r(localtime_r(timep, &mytm), buf);
+}
+#endif
+
+/*
+** Adapted from code provided by Robert Elz, who writes:
+**	The "best" way to do mktime I think is based on an idea of Bob
+**	Kridle's (so its said...) from a long time ago.
+**	It does a binary search of the time_t space. Since time_t's are
+**	just 32 bits, its a max of 32 iterations (even at 64 bits it
+**	would still be very reasonable).
+*/
+
+#ifndef WRONG
+#define WRONG	(-1)
+#endif /* !defined WRONG */
+
+/*
+** Simplified normalize logic courtesy Paul Eggert.
+*/
+
+static int
+increment_overflow(number, delta)
+int *   number;
+int delta;
+{
+    unsigned  number0 = (unsigned)*number;
+    unsigned  number1 = (unsigned)(number0 + delta);
+
+    *number = (int)number1;
+
+    if (delta >= 0) {
+        return ((int)number1 < (int)number0);
+    } else {
+        return ((int)number1 > (int)number0);
+    }
+}
+
+static int
+long_increment_overflow(number, delta)
+long *  number;
+int delta;
+{
+    unsigned long  number0 = (unsigned long)*number;
+    unsigned long  number1 = (unsigned long)(number0 + delta);
+
+    *number = (long)number1;
+
+    if (delta >= 0) {
+        return ((long)number1 < (long)number0);
+    } else {
+        return ((long)number1 > (long)number0);
+    }
+}
+
+static int
+normalize_overflow(tensptr, unitsptr, base)
+int * const	tensptr;
+int * const	unitsptr;
+const int	base;
+{
+	register int	tensdelta;
+
+	tensdelta = (*unitsptr >= 0) ?
+		(*unitsptr / base) :
+		(-1 - (-1 - *unitsptr) / base);
+	*unitsptr -= tensdelta * base;
+	return increment_overflow(tensptr, tensdelta);
+}
+
+static int
+long_normalize_overflow(tensptr, unitsptr, base)
+long * const	tensptr;
+int * const	unitsptr;
+const int	base;
+{
+	register int	tensdelta;
+
+	tensdelta = (*unitsptr >= 0) ?
+		(*unitsptr / base) :
+		(-1 - (-1 - *unitsptr) / base);
+	*unitsptr -= tensdelta * base;
+	return long_increment_overflow(tensptr, tensdelta);
+}
+
+static int
+tmcomp(atmp, btmp)
+register const struct tm * const atmp;
+register const struct tm * const btmp;
+{
+	register int	result;
+
+	if ((result = (atmp->tm_year - btmp->tm_year)) == 0 &&
+		(result = (atmp->tm_mon - btmp->tm_mon)) == 0 &&
+		(result = (atmp->tm_mday - btmp->tm_mday)) == 0 &&
+		(result = (atmp->tm_hour - btmp->tm_hour)) == 0 &&
+		(result = (atmp->tm_min - btmp->tm_min)) == 0)
+			result = atmp->tm_sec - btmp->tm_sec;
+	return result;
+}
+
+static time_t
+time2sub(tmp, funcp, offset, okayp, do_norm_secs, sp)
+struct tm * const	tmp;
+struct tm * (* const	funcp) P((const time_t*, long, struct tm*,const struct state *sp));
+const long		offset;
+int * const		okayp;
+const int		do_norm_secs;
+const struct state *	sp;
+{
+	register int			dir;
+	register int			i, j;
+	register int			saved_seconds;
+	register long			li;
+	register time_t			lo;
+	register time_t			hi;
+	long				y;
+	time_t				newt;
+	time_t				t;
+	struct tm			yourtm, mytm;
+
+	*okayp = FALSE;
+	yourtm = *tmp;
+	if (do_norm_secs) {
+		if (normalize_overflow(&yourtm.tm_min, &yourtm.tm_sec,
+			SECSPERMIN))
+				return WRONG;
+	}
+	if (normalize_overflow(&yourtm.tm_hour, &yourtm.tm_min, MINSPERHOUR))
+		return WRONG;
+	if (normalize_overflow(&yourtm.tm_mday, &yourtm.tm_hour, HOURSPERDAY))
+		return WRONG;
+	y = yourtm.tm_year;
+	if (long_normalize_overflow(&y, &yourtm.tm_mon, MONSPERYEAR))
+		return WRONG;
+	/*
+	** Turn y into an actual year number for now.
+	** It is converted back to an offset from TM_YEAR_BASE later.
+	*/
+	if (long_increment_overflow(&y, TM_YEAR_BASE))
+		return WRONG;
+	while (yourtm.tm_mday <= 0) {
+		if (long_increment_overflow(&y, -1))
+			return WRONG;
+		li = y + (1 < yourtm.tm_mon);
+		yourtm.tm_mday += year_lengths[isleap(li)];
+	}
+	while (yourtm.tm_mday > DAYSPERLYEAR) {
+		li = y + (1 < yourtm.tm_mon);
+		yourtm.tm_mday -= year_lengths[isleap(li)];
+		if (long_increment_overflow(&y, 1))
+			return WRONG;
+	}
+	for ( ; ; ) {
+		i = mon_lengths[isleap(y)][yourtm.tm_mon];
+		if (yourtm.tm_mday <= i)
+			break;
+		yourtm.tm_mday -= i;
+		if (++yourtm.tm_mon >= MONSPERYEAR) {
+			yourtm.tm_mon = 0;
+			if (long_increment_overflow(&y, 1))
+				return WRONG;
+		}
+	}
+	if (long_increment_overflow(&y, -TM_YEAR_BASE))
+		return WRONG;
+	yourtm.tm_year = y;
+	if (yourtm.tm_year != y)
+		return WRONG;
+	if (yourtm.tm_sec >= 0 && yourtm.tm_sec < SECSPERMIN)
+		saved_seconds = 0;
+	else if (y + TM_YEAR_BASE < EPOCH_YEAR) {
+		/*
+		** We can't set tm_sec to 0, because that might push the
+		** time below the minimum representable time.
+		** Set tm_sec to 59 instead.
+		** This assumes that the minimum representable time is
+		** not in the same minute that a leap second was deleted from,
+		** which is a safer assumption than using 58 would be.
+		*/
+		if (increment_overflow(&yourtm.tm_sec, 1 - SECSPERMIN))
+			return WRONG;
+		saved_seconds = yourtm.tm_sec;
+		yourtm.tm_sec = SECSPERMIN - 1;
+	} else {
+		saved_seconds = yourtm.tm_sec;
+		yourtm.tm_sec = 0;
+	}
+	/*
+	** Do a binary search (this works whatever time_t's type is).
+	*/
+	if (!TYPE_SIGNED(time_t)) {
+		lo = 0;
+		hi = lo - 1;
+	} else if (!TYPE_INTEGRAL(time_t)) {
+		if (sizeof(time_t) > sizeof(float))
+			hi = (time_t) DBL_MAX;
+		else	hi = (time_t) FLT_MAX;
+		lo = -hi;
+	} else {
+		lo = 1;
+		for (i = 0; i < (int) TYPE_BIT(time_t) - 1; ++i)
+			lo *= 2;
+		hi = -(lo + 1);
+	}
+	for ( ; ; ) {
+		t = lo / 2 + hi / 2;
+		if (t < lo)
+			t = lo;
+		else if (t > hi)
+			t = hi;
+		if ((*funcp)(&t, offset, &mytm, sp) == NULL) {
+			/*
+			** Assume that t is too extreme to be represented in
+			** a struct tm; arrange things so that it is less
+			** extreme on the next pass.
+			*/
+			dir = (t > 0) ? 1 : -1;
+		} else	dir = tmcomp(&mytm, &yourtm);
+		if (dir != 0) {
+			if (t == lo) {
+			        if (t == TIME_T_MAX)
+			             return WRONG;
+				++t;
+				++lo;
+			} else if (t == hi) {
+			        if (t == TIME_T_MIN)
+			             return WRONG;
+				--t;
+				--hi;
+			}
+			if (lo > hi)
+				return WRONG;
+			if (dir > 0)
+				hi = t;
+			else	lo = t;
+			continue;
+		}
+		if (yourtm.tm_isdst < 0 || mytm.tm_isdst == yourtm.tm_isdst)
+			break;
+		/*
+		** Right time, wrong type.
+		** Hunt for right time, right type.
+		** It's okay to guess wrong since the guess
+		** gets checked.
+		*/
+		/*
+		** The (void *) casts are the benefit of SunOS 3.3 on Sun 2's.
+		*/
+#ifdef ALL_STATE
+		if (sp == NULL)
+			return WRONG;
+#endif /* defined ALL_STATE */
+		for (i = sp->typecnt - 1; i >= 0; --i) {
+			if (sp->ttis[i].tt_isdst != yourtm.tm_isdst)
+				continue;
+			for (j = sp->typecnt - 1; j >= 0; --j) {
+				if (sp->ttis[j].tt_isdst == yourtm.tm_isdst)
+					continue;
+				newt = t + sp->ttis[j].tt_gmtoff -
+					sp->ttis[i].tt_gmtoff;
+				if ((*funcp)(&newt, offset, &mytm, sp) == NULL)
+					continue;
+				if (tmcomp(&mytm, &yourtm) != 0)
+					continue;
+				if (mytm.tm_isdst != yourtm.tm_isdst)
+					continue;
+				/*
+				** We have a match.
+				*/
+				t = newt;
+				goto label;
+			}
+		}
+		return WRONG;
+	}
+label:
+	newt = t + saved_seconds;
+	if ((newt < t) != (saved_seconds < 0))
+		return WRONG;
+	t = newt;
+	if ((*funcp)(&t, offset, tmp, sp))
+		*okayp = TRUE;
+	return t;
+}
+
+static time_t
+time2(tmp, funcp, offset, okayp, sp)
+struct tm * const	tmp;
+struct tm * (* const	funcp) P((const time_t*, long, struct tm*,
+            const struct state* sp));
+const long		offset;
+int * const		okayp;
+const struct state *	sp;
+{
+	time_t	t;
+
+	/*
+	** First try without normalization of seconds
+	** (in case tm_sec contains a value associated with a leap second).
+	** If that fails, try with normalization of seconds.
+	*/
+	t = time2sub(tmp, funcp, offset, okayp, FALSE, sp);
+	return *okayp ? t : time2sub(tmp, funcp, offset, okayp, TRUE, sp);
+}
+
+static time_t
+time1(tmp, funcp, offset, sp)
+struct tm * const	tmp;
+struct tm * (* const	funcp) P((const time_t *, long, struct tm *, const struct state* sp));
+const long		offset;
+const struct state *	sp;
+{
+	register time_t			t;
+	register int			samei, otheri;
+	register int			sameind, otherind;
+	register int			i;
+	register int			nseen;
+	int				seen[TZ_MAX_TYPES];
+	int				types[TZ_MAX_TYPES];
+	int				okay;
+
+	if (tmp->tm_isdst > 1)
+		tmp->tm_isdst = 1;
+	t = time2(tmp, funcp, offset, &okay, sp);
+#define PCTS 1
+#ifdef PCTS
+	/*
+	** PCTS code courtesy Grant Sullivan.
+	*/
+	if (okay)
+		return t;
+	if (tmp->tm_isdst < 0)
+		tmp->tm_isdst = 0;	/* reset to std and try again */
+#endif /* defined PCTS */
+#ifndef PCTS
+	if (okay || tmp->tm_isdst < 0)
+		return t;
+#endif /* !defined PCTS */
+	/*
+	** We're supposed to assume that somebody took a time of one type
+	** and did some math on it that yielded a "struct tm" that's bad.
+	** We try to divine the type they started from and adjust to the
+	** type they need.
+	*/
+	/*
+	** The (void *) casts are the benefit of SunOS 3.3 on Sun 2's.
+	*/
+#ifdef ALL_STATE
+	if (sp == NULL)
+		return WRONG;
+#endif /* defined ALL_STATE */
+	for (i = 0; i < sp->typecnt; ++i)
+		seen[i] = FALSE;
+	nseen = 0;
+	for (i = sp->timecnt - 1; i >= 0; --i)
+		if (!seen[sp->types[i]]) {
+			seen[sp->types[i]] = TRUE;
+			types[nseen++] = sp->types[i];
+		}
+	for (sameind = 0; sameind < nseen; ++sameind) {
+		samei = types[sameind];
+		if (sp->ttis[samei].tt_isdst != tmp->tm_isdst)
+			continue;
+		for (otherind = 0; otherind < nseen; ++otherind) {
+			otheri = types[otherind];
+			if (sp->ttis[otheri].tt_isdst == tmp->tm_isdst)
+				continue;
+			tmp->tm_sec += sp->ttis[otheri].tt_gmtoff -
+					sp->ttis[samei].tt_gmtoff;
+			tmp->tm_isdst = !tmp->tm_isdst;
+			t = time2(tmp, funcp, offset, &okay, sp);
+			if (okay)
+				return t;
+			tmp->tm_sec -= sp->ttis[otheri].tt_gmtoff -
+					sp->ttis[samei].tt_gmtoff;
+			tmp->tm_isdst = !tmp->tm_isdst;
+		}
+	}
+	return WRONG;
+}
+
+// ============================================================================
+time_t
+mktime_tz(struct tm * const	tmp, char const * tz)
+{
+    struct state st;
+    if (tzload(tz, &st, TRUE) != 0) {
+        // not sure what's best here, but for now, we fall back to gmt
+        gmtload(&st);
+    }
+	return time1(tmp, localsub, 0L, &st);
+}
diff --git a/libion/ion.c b/libion/ion.c
index dbeac23..020c35b 100644
--- a/libion/ion.c
+++ b/libion/ion.c
@@ -54,13 +54,14 @@
         return ret;
 }
 
-int ion_alloc(int fd, size_t len, size_t align, unsigned int flags,
-              struct ion_handle **handle)
+int ion_alloc(int fd, size_t len, size_t align, unsigned int heap_mask,
+	      unsigned int flags, struct ion_handle **handle)
 {
         int ret;
         struct ion_allocation_data data = {
                 .len = len,
                 .align = align,
+		.heap_mask = heap_mask,
                 .flags = flags,
         };
 
@@ -120,6 +121,19 @@
         return ret;
 }
 
+int ion_alloc_fd(int fd, size_t len, size_t align, unsigned int heap_mask,
+		 unsigned int flags, int *handle_fd) {
+	struct ion_handle *handle;
+	int ret;
+
+	ret = ion_alloc(fd, len, align, heap_mask, flags, &handle);
+	if (ret < 0)
+		return ret;
+	ret = ion_share(fd, handle, handle_fd);
+	ion_free(fd, handle);
+	return ret;
+}
+
 int ion_import(int fd, int share_fd, struct ion_handle **handle)
 {
         struct ion_fd_data data = {
@@ -132,3 +146,11 @@
         *handle = data.handle;
         return ret;
 }
+
+int ion_sync_fd(int fd, int handle_fd)
+{
+    struct ion_fd_data data = {
+        .fd = handle_fd,
+    };
+    return ion_ioctl(fd, ION_IOC_SYNC, &data);
+}
diff --git a/libion/ion_test.c b/libion/ion_test.c
index 3f2d7cc..0caaa2a 100644
--- a/libion/ion_test.c
+++ b/libion/ion_test.c
@@ -19,8 +19,8 @@
 int prot = PROT_READ | PROT_WRITE;
 int map_flags = MAP_SHARED;
 int alloc_flags = 0;
+int heap_mask = 1;
 int test = -1;
-size_t width = 1024*1024, height = 1024*1024;
 size_t stride;
 
 int _ion_alloc_test(int *fd, struct ion_handle **handle)
@@ -31,7 +31,7 @@
 	if (*fd < 0)
 		return *fd;
 
-	ret = ion_alloc(*fd, len, align, alloc_flags, handle);
+	ret = ion_alloc(*fd, len, align, heap_mask, alloc_flags, handle);
 
 	if (ret)
 		printf("%s failed: %s\n", __func__, strerror(ret));
@@ -203,17 +203,16 @@
 		static struct option opts[] = {
 			{"alloc", no_argument, 0, 'a'},
 			{"alloc_flags", required_argument, 0, 'f'},
+			{"heap_mask", required_argument, 0, 'h'},
 			{"map", no_argument, 0, 'm'},
 			{"share", no_argument, 0, 's'},
 			{"len", required_argument, 0, 'l'},
 			{"align", required_argument, 0, 'g'},
 			{"map_flags", required_argument, 0, 'z'},
 			{"prot", required_argument, 0, 'p'},
-			{"width", required_argument, 0, 'w'},
-			{"height", required_argument, 0, 'h'},
 		};
 		int i = 0;
-		c = getopt_long(argc, argv, "af:h:l:mr:stw:", opts, &i);
+		c = getopt_long(argc, argv, "af:h:l:mr:st", opts, &i);
 		if (c == -1)
 			break;
 
@@ -245,6 +244,9 @@
 		case 'f':
 			alloc_flags = atol(optarg);
 			break;
+		case 'h':
+			heap_mask = atol(optarg);
+			break;
 		case 'a':
 			test = ALLOC_TEST;
 			break;
@@ -254,17 +256,11 @@
 		case 's':
 			test = SHARE_TEST;
 			break;
-		case 'w':
-			width = atol(optarg);
-			break;
-		case 'h':
-			height = atol(optarg);
-			break;
 		}
 	}
-	printf("test %d, len %u, width %u, height %u align %u, "
-		   "map_flags %d, prot %d, alloc_flags %d\n", test, len, width,
-		   height, align, map_flags, prot, alloc_flags);
+	printf("test %d, len %u, align %u, map_flags %d, prot %d, heap_mask %d,"
+	       " alloc_flags %d\n", test, len, align, map_flags, prot,
+	       heap_mask, alloc_flags);
 	switch (test) {
 		case ALLOC_TEST:
 			ion_alloc_test();
diff --git a/liblog/logd_write.c b/liblog/logd_write.c
index a0a753b..b91de52 100644
--- a/liblog/logd_write.c
+++ b/liblog/logd_write.c
@@ -141,6 +141,7 @@
     /* XXX: This needs to go! */
     if (!strcmp(tag, "HTC_RIL") ||
         !strncmp(tag, "RIL", 3) || /* Any log tag with "RIL" as the prefix */
+        !strncmp(tag, "IMS", 3) || /* Any log tag with "IMS" as the prefix */
         !strcmp(tag, "AT") ||
         !strcmp(tag, "GSM") ||
         !strcmp(tag, "STK") ||
@@ -169,6 +170,7 @@
     /* XXX: This needs to go! */
     if (!strcmp(tag, "HTC_RIL") ||
         !strncmp(tag, "RIL", 3) || /* Any log tag with "RIL" as the prefix */
+        !strncmp(tag, "IMS", 3) || /* Any log tag with "IMS" as the prefix */
         !strcmp(tag, "AT") ||
         !strcmp(tag, "GSM") ||
         !strcmp(tag, "STK") ||
diff --git a/libmincrypt/Android.mk b/libmincrypt/Android.mk
index b09a941..f58eab9 100644
--- a/libmincrypt/Android.mk
+++ b/libmincrypt/Android.mk
@@ -4,13 +4,13 @@
 include $(CLEAR_VARS)
 
 LOCAL_MODULE := libmincrypt
-LOCAL_SRC_FILES := rsa.c sha.c
+LOCAL_SRC_FILES := rsa.c rsa_e_3.c rsa_e_f4.c sha.c
 include $(BUILD_STATIC_LIBRARY)
 
 include $(CLEAR_VARS)
 
 LOCAL_MODULE := libmincrypt
-LOCAL_SRC_FILES := rsa.c sha.c
+LOCAL_SRC_FILES := rsa.c rsa_e_3.c rsa_e_f4.c sha.c
 include $(BUILD_HOST_STATIC_LIBRARY)
 
 
diff --git a/libmincrypt/rsa.c b/libmincrypt/rsa.c
index d7124fb..b4ee6af 100644
--- a/libmincrypt/rsa.c
+++ b/libmincrypt/rsa.c
@@ -1,6 +1,6 @@
 /* rsa.c
 **
-** Copyright 2008, The Android Open Source Project
+** Copyright 2012, The Android Open Source Project
 **
 ** Redistribution and use in source and binary forms, with or without
 ** modification, are permitted provided that the following conditions are met:
@@ -13,186 +13,42 @@
 **       be used to endorse or promote products derived from this software
 **       without specific prior written permission.
 **
-** THIS SOFTWARE IS PROVIDED BY Google Inc. ``AS IS'' AND ANY EXPRESS OR 
+** THIS SOFTWARE IS PROVIDED BY Google Inc. ``AS IS'' AND ANY EXPRESS OR
 ** IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
-** MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO 
+** MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
 ** EVENT SHALL Google Inc. BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 ** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
-** PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; 
-** OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, 
-** WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR 
+** PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
+** OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+** WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
 ** OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
 ** ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */
 
 #include "mincrypt/rsa.h"
-#include "mincrypt/sha.h"
 
-/* a[] -= mod */
-static void subM(const RSAPublicKey *key, uint32_t *a) {
-    int64_t A = 0;
-    int i;
-    for (i = 0; i < key->len; ++i) {
-        A += (uint64_t)a[i] - key->n[i];
-        a[i] = (uint32_t)A;
-        A >>= 32;
-    }
-}
+int RSA_e_f4_verify(const RSAPublicKey* key,
+                    const uint8_t* signature,
+                    const int len,
+                    const uint8_t* sha);
 
-/* return a[] >= mod */
-static int geM(const RSAPublicKey *key, const uint32_t *a) {
-    int i;
-    for (i = key->len; i;) {
-        --i;
-        if (a[i] < key->n[i]) return 0;
-        if (a[i] > key->n[i]) return 1;
-    }
-    return 1;  /* equal */
-}
+int RSA_e_3_verify(const RSAPublicKey *key,
+                   const uint8_t *signature,
+                   const int len,
+                   const uint8_t *sha);
 
-/* montgomery c[] += a * b[] / R % mod */
-static void montMulAdd(const RSAPublicKey *key,
-                       uint32_t* c,
-                       const uint32_t a,
-                       const uint32_t* b) {
-    uint64_t A = (uint64_t)a * b[0] + c[0];
-    uint32_t d0 = (uint32_t)A * key->n0inv;
-    uint64_t B = (uint64_t)d0 * key->n[0] + (uint32_t)A;
-    int i;
-
-    for (i = 1; i < key->len; ++i) {
-        A = (A >> 32) + (uint64_t)a * b[i] + c[i];
-        B = (B >> 32) + (uint64_t)d0 * key->n[i] + (uint32_t)A;
-        c[i - 1] = (uint32_t)B;
-    }
-
-    A = (A >> 32) + (B >> 32);
-
-    c[i - 1] = (uint32_t)A;
-
-    if (A >> 32) {
-        subM(key, c);
-    }
-}
-
-/* montgomery c[] = a[] * b[] / R % mod */
-static void montMul(const RSAPublicKey *key,
-                    uint32_t* c,
-                    const uint32_t* a,
-                    const uint32_t* b) {
-    int i;
-    for (i = 0; i < key->len; ++i) {
-        c[i] = 0;
-    }
-    for (i = 0; i < key->len; ++i) {
-        montMulAdd(key, c, a[i], b);
-    }
-}
-
-/* In-place public exponentiation.
-** Input and output big-endian byte array in inout.
-*/
-static void modpow3(const RSAPublicKey *key,
-                    uint8_t* inout) {
-    uint32_t a[RSANUMWORDS];
-    uint32_t aR[RSANUMWORDS];
-    uint32_t aaR[RSANUMWORDS];
-    uint32_t *aaa = aR;  /* Re-use location. */
-    int i;
-
-    /* Convert from big endian byte array to little endian word array. */
-    for (i = 0; i < key->len; ++i) {
-        uint32_t tmp =
-            (inout[((key->len - 1 - i) * 4) + 0] << 24) |
-            (inout[((key->len - 1 - i) * 4) + 1] << 16) |
-            (inout[((key->len - 1 - i) * 4) + 2] << 8) |
-            (inout[((key->len - 1 - i) * 4) + 3] << 0);
-        a[i] = tmp;
-    }
-
-    montMul(key, aR, a, key->rr);  /* aR = a * RR / R mod M   */
-    montMul(key, aaR, aR, aR);     /* aaR = aR * aR / R mod M */
-    montMul(key, aaa, aaR, a);     /* aaa = aaR * a / R mod M */
-
-    /* Make sure aaa < mod; aaa is at most 1x mod too large. */
-    if (geM(key, aaa)) {
-        subM(key, aaa);
-    }
-
-    /* Convert to bigendian byte array */
-    for (i = key->len - 1; i >= 0; --i) {
-        uint32_t tmp = aaa[i];
-        *inout++ = tmp >> 24;
-        *inout++ = tmp >> 16;
-        *inout++ = tmp >> 8;
-        *inout++ = tmp >> 0;
-    }
-}
-
-/* Expected PKCS1.5 signature padding bytes, for a keytool RSA signature.
-** Has the 0-length optional parameter encoded in the ASN1 (as opposed to the
-** other flavor which omits the optional parameter entirely). This code does not
-** accept signatures without the optional parameter.
-*/
-static const uint8_t padding[RSANUMBYTES - SHA_DIGEST_SIZE] = {
-    0x00,0x01,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,
-    0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,
-    0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,
-    0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,
-    0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,
-    0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,
-    0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,
-    0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,
-    0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,
-    0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,
-    0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,
-    0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,
-    0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,
-    0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,
-    0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,
-    0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,
-    0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0x00,
-    0x30,0x21,0x30,0x09,0x06,0x05,0x2b,0x0e,0x03,0x02,0x1a,0x05,0x00,
-    0x04,0x14
-};
-
-/* Verify a 2048 bit RSA PKCS1.5 signature against an expected SHA-1 hash.
-** Returns 0 on failure, 1 on success.
-*/
 int RSA_verify(const RSAPublicKey *key,
                const uint8_t *signature,
                const int len,
                const uint8_t *sha) {
-    uint8_t buf[RSANUMBYTES];
-    int i;
-
-    if (key->len != RSANUMWORDS) {
-        return 0;  /* Wrong key passed in. */
-    }
-
-    if (len != sizeof(buf)) {
-        return 0;  /* Wrong input length. */
-    }
-
-    for (i = 0; i < len; ++i) {
-        buf[i] = signature[i];
-    }
-
-    modpow3(key, buf);
-
-    /* Check pkcs1.5 padding bytes. */
-    for (i = 0; i < (int) sizeof(padding); ++i) {
-        if (buf[i] != padding[i]) {
+    switch (key->exponent) {
+        case 3:
+            return RSA_e_3_verify(key, signature, len, sha);
+            break;
+        case 65537:
+            return RSA_e_f4_verify(key, signature, len, sha);
+            break;
+        default:
             return 0;
-        }
     }
-
-    /* Check sha digest matches. */
-    for (; i < len; ++i) {
-        if (buf[i] != *sha++) {
-            return 0;
-        }
-    }
-
-    return 1;
 }
diff --git a/libmincrypt/rsa_e_3.c b/libmincrypt/rsa_e_3.c
new file mode 100644
index 0000000..c8c02c4
--- /dev/null
+++ b/libmincrypt/rsa_e_3.c
@@ -0,0 +1,202 @@
+/* rsa_e_3.c
+**
+** Copyright 2008, The Android Open Source Project
+**
+** Redistribution and use in source and binary forms, with or without
+** modification, are permitted provided that the following conditions are met:
+**     * Redistributions of source code must retain the above copyright
+**       notice, this list of conditions and the following disclaimer.
+**     * Redistributions in binary form must reproduce the above copyright
+**       notice, this list of conditions and the following disclaimer in the
+**       documentation and/or other materials provided with the distribution.
+**     * Neither the name of Google Inc. nor the names of its contributors may
+**       be used to endorse or promote products derived from this software
+**       without specific prior written permission.
+**
+** THIS SOFTWARE IS PROVIDED BY Google Inc. ``AS IS'' AND ANY EXPRESS OR
+** IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+** MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
+** EVENT SHALL Google Inc. BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+** PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
+** OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+** WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
+** OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
+** ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+*/
+
+#include "mincrypt/rsa.h"
+#include "mincrypt/sha.h"
+
+/* a[] -= mod */
+static void subM(const RSAPublicKey *key, uint32_t *a) {
+    int64_t A = 0;
+    int i;
+    for (i = 0; i < key->len; ++i) {
+        A += (uint64_t)a[i] - key->n[i];
+        a[i] = (uint32_t)A;
+        A >>= 32;
+    }
+}
+
+/* return a[] >= mod */
+static int geM(const RSAPublicKey *key, const uint32_t *a) {
+    int i;
+    for (i = key->len; i;) {
+        --i;
+        if (a[i] < key->n[i]) return 0;
+        if (a[i] > key->n[i]) return 1;
+    }
+    return 1;  /* equal */
+}
+
+/* montgomery c[] += a * b[] / R % mod */
+static void montMulAdd(const RSAPublicKey *key,
+                       uint32_t* c,
+                       const uint32_t a,
+                       const uint32_t* b) {
+    uint64_t A = (uint64_t)a * b[0] + c[0];
+    uint32_t d0 = (uint32_t)A * key->n0inv;
+    uint64_t B = (uint64_t)d0 * key->n[0] + (uint32_t)A;
+    int i;
+
+    for (i = 1; i < key->len; ++i) {
+        A = (A >> 32) + (uint64_t)a * b[i] + c[i];
+        B = (B >> 32) + (uint64_t)d0 * key->n[i] + (uint32_t)A;
+        c[i - 1] = (uint32_t)B;
+    }
+
+    A = (A >> 32) + (B >> 32);
+
+    c[i - 1] = (uint32_t)A;
+
+    if (A >> 32) {
+        subM(key, c);
+    }
+}
+
+/* montgomery c[] = a[] * b[] / R % mod */
+static void montMul(const RSAPublicKey *key,
+                    uint32_t* c,
+                    const uint32_t* a,
+                    const uint32_t* b) {
+    int i;
+    for (i = 0; i < key->len; ++i) {
+        c[i] = 0;
+    }
+    for (i = 0; i < key->len; ++i) {
+        montMulAdd(key, c, a[i], b);
+    }
+}
+
+/* In-place public exponentiation.
+** Input and output big-endian byte array in inout.
+*/
+static void modpow3(const RSAPublicKey *key,
+                    uint8_t* inout) {
+    uint32_t a[RSANUMWORDS];
+    uint32_t aR[RSANUMWORDS];
+    uint32_t aaR[RSANUMWORDS];
+    uint32_t *aaa = aR;  /* Re-use location. */
+    int i;
+
+    /* Convert from big endian byte array to little endian word array. */
+    for (i = 0; i < key->len; ++i) {
+        uint32_t tmp =
+            (inout[((key->len - 1 - i) * 4) + 0] << 24) |
+            (inout[((key->len - 1 - i) * 4) + 1] << 16) |
+            (inout[((key->len - 1 - i) * 4) + 2] << 8) |
+            (inout[((key->len - 1 - i) * 4) + 3] << 0);
+        a[i] = tmp;
+    }
+
+    montMul(key, aR, a, key->rr);  /* aR = a * RR / R mod M   */
+    montMul(key, aaR, aR, aR);     /* aaR = aR * aR / R mod M */
+    montMul(key, aaa, aaR, a);     /* aaa = aaR * a / R mod M */
+
+    /* Make sure aaa < mod; aaa is at most 1x mod too large. */
+    if (geM(key, aaa)) {
+        subM(key, aaa);
+    }
+
+    /* Convert to bigendian byte array */
+    for (i = key->len - 1; i >= 0; --i) {
+        uint32_t tmp = aaa[i];
+        *inout++ = tmp >> 24;
+        *inout++ = tmp >> 16;
+        *inout++ = tmp >> 8;
+        *inout++ = tmp >> 0;
+    }
+}
+
+/* Expected PKCS1.5 signature padding bytes, for a keytool RSA signature.
+** Has the 0-length optional parameter encoded in the ASN1 (as opposed to the
+** other flavor which omits the optional parameter entirely). This code does not
+** accept signatures without the optional parameter.
+*/
+static const uint8_t padding[RSANUMBYTES - SHA_DIGEST_SIZE] = {
+    0x00,0x01,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,
+    0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,
+    0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,
+    0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,
+    0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,
+    0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,
+    0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,
+    0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,
+    0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,
+    0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,
+    0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,
+    0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,
+    0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,
+    0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,
+    0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,
+    0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,
+    0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0x00,
+    0x30,0x21,0x30,0x09,0x06,0x05,0x2b,0x0e,0x03,0x02,0x1a,0x05,0x00,
+    0x04,0x14
+};
+
+/* Verify a 2048 bit RSA e=3 PKCS1.5 signature against an expected SHA-1 hash.
+** Returns 0 on failure, 1 on success.
+*/
+int RSA_e_3_verify(const RSAPublicKey *key,
+                   const uint8_t *signature,
+                   const int len,
+                   const uint8_t *sha) {
+    uint8_t buf[RSANUMBYTES];
+    int i;
+
+    if (key->len != RSANUMWORDS) {
+        return 0;  /* Wrong key passed in. */
+    }
+
+    if (len != sizeof(buf)) {
+        return 0;  /* Wrong input length. */
+    }
+
+  if (key->exponent != 3) {
+      return 0;  // Wrong exponent.
+  }
+
+    for (i = 0; i < len; ++i) {
+        buf[i] = signature[i];
+    }
+
+    modpow3(key, buf);
+
+    /* Check pkcs1.5 padding bytes. */
+    for (i = 0; i < (int) sizeof(padding); ++i) {
+        if (buf[i] != padding[i]) {
+            return 0;
+        }
+    }
+
+    /* Check sha digest matches. */
+    for (; i < len; ++i) {
+        if (buf[i] != *sha++) {
+            return 0;
+        }
+    }
+
+    return 1;
+}
diff --git a/libmincrypt/rsa_e_f4.c b/libmincrypt/rsa_e_f4.c
new file mode 100644
index 0000000..6701bcc
--- /dev/null
+++ b/libmincrypt/rsa_e_f4.c
@@ -0,0 +1,196 @@
+/* rsa_e_f4.c
+**
+** Copyright 2012, The Android Open Source Project
+**
+** Redistribution and use in source and binary forms, with or without
+** modification, are permitted provided that the following conditions are met:
+**     * Redistributions of source code must retain the above copyright
+**       notice, this list of conditions and the following disclaimer.
+**     * Redistributions in binary form must reproduce the above copyright
+**       notice, this list of conditions and the following disclaimer in the
+**       documentation and/or other materials provided with the distribution.
+**     * Neither the name of Google Inc. nor the names of its contributors may
+**       be used to endorse or promote products derived from this software
+**       without specific prior written permission.
+**
+** THIS SOFTWARE IS PROVIDED BY Google Inc. ``AS IS'' AND ANY EXPRESS OR
+** IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+** MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
+** EVENT SHALL Google Inc. BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+** PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
+** OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+** WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
+** OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
+** ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+*/
+
+#include "mincrypt/rsa.h"
+#include "mincrypt/sha.h"
+
+// a[] -= mod
+static void subM(const RSAPublicKey* key,
+                 uint32_t* a) {
+  int64_t A = 0;
+  int i;
+  for (i = 0; i < key->len; ++i) {
+    A += (uint64_t)a[i] - key->n[i];
+    a[i] = (uint32_t)A;
+    A >>= 32;
+  }
+}
+
+// return a[] >= mod
+static int geM(const RSAPublicKey* key,
+               const uint32_t* a) {
+  int i;
+  for (i = key->len; i;) {
+    --i;
+    if (a[i] < key->n[i]) return 0;
+    if (a[i] > key->n[i]) return 1;
+  }
+  return 1;  // equal
+}
+
+// montgomery c[] += a * b[] / R % mod
+static void montMulAdd(const RSAPublicKey* key,
+                       uint32_t* c,
+                       const uint32_t a,
+                       const uint32_t* b) {
+  uint64_t A = (uint64_t)a * b[0] + c[0];
+  uint32_t d0 = (uint32_t)A * key->n0inv;
+  uint64_t B = (uint64_t)d0 * key->n[0] + (uint32_t)A;
+  int i;
+
+  for (i = 1; i < key->len; ++i) {
+    A = (A >> 32) + (uint64_t)a * b[i] + c[i];
+    B = (B >> 32) + (uint64_t)d0 * key->n[i] + (uint32_t)A;
+    c[i - 1] = (uint32_t)B;
+  }
+
+  A = (A >> 32) + (B >> 32);
+
+  c[i - 1] = (uint32_t)A;
+
+  if (A >> 32) {
+    subM(key, c);
+  }
+}
+
+// montgomery c[] = a[] * b[] / R % mod
+static void montMul(const RSAPublicKey* key,
+                    uint32_t* c,
+                    const uint32_t* a,
+                    const uint32_t* b) {
+  int i;
+  for (i = 0; i < key->len; ++i) {
+    c[i] = 0;
+  }
+  for (i = 0; i < key->len; ++i) {
+    montMulAdd(key, c, a[i], b);
+  }
+}
+
+// In-place public exponentiation.
+// Input and output big-endian byte array in inout.
+static void modpowF4(const RSAPublicKey* key,
+                     uint8_t* inout) {
+  uint32_t a[RSANUMWORDS];
+  uint32_t aR[RSANUMWORDS];
+  uint32_t aaR[RSANUMWORDS];
+  uint32_t* aaa = aaR;  // Re-use location.
+  int i;
+
+  // Convert from big endian byte array to little endian word array.
+  for (i = 0; i < key->len; ++i) {
+    uint32_t tmp =
+      (inout[((key->len - 1 - i) * 4) + 0] << 24) |
+      (inout[((key->len - 1 - i) * 4) + 1] << 16) |
+      (inout[((key->len - 1 - i) * 4) + 2] << 8) |
+      (inout[((key->len - 1 - i) * 4) + 3] << 0);
+    a[i] = tmp;
+  }
+
+  montMul(key, aR, a, key->rr);  // aR = a * RR / R mod M
+  for (i = 0; i < 16; i += 2) {
+    montMul(key, aaR, aR, aR);  // aaR = aR * aR / R mod M
+    montMul(key, aR, aaR, aaR);  // aR = aaR * aaR / R mod M
+  }
+  montMul(key, aaa, aR, a);  // aaa = aR * a / R mod M
+
+  // Make sure aaa < mod; aaa is at most 1x mod too large.
+  if (geM(key, aaa)) {
+    subM(key, aaa);
+  }
+
+  // Convert to bigendian byte array
+  for (i = key->len - 1; i >= 0; --i) {
+    uint32_t tmp = aaa[i];
+    *inout++ = tmp >> 24;
+    *inout++ = tmp >> 16;
+    *inout++ = tmp >> 8;
+    *inout++ = tmp >> 0;
+  }
+}
+
+// Expected PKCS1.5 signature padding bytes, for a keytool RSA signature.
+// Has the 0-length optional parameter encoded in the ASN1 (as opposed to the
+// other flavor which omits the optional parameter entirely). This code does not
+// accept signatures without the optional parameter.
+/*
+static const uint8_t padding[RSANUMBYTES] = {
+0x00,0x01,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0x00,0x30,0x21,0x30,0x09,0x06,0x05,0x2b,0x0e,0x03,0x02,0x1a,0x05,0x00,0x04,0x14,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0
+};
+*/
+
+// SHA-1 of PKCS1.5 signature padding for 2048 bit, as above.
+// At the location of the bytes of the hash all 00 are hashed.
+static const uint8_t kExpectedPadShaRsa2048[SHA_DIGEST_SIZE] = {
+  0xdc, 0xbd, 0xbe, 0x42, 0xd5, 0xf5, 0xa7, 0x2e, 0x6e, 0xfc,
+  0xf5, 0x5d, 0xaf, 0x9d, 0xea, 0x68, 0x7c, 0xfb, 0xf1, 0x67
+};
+
+// Verify a 2048 bit RSA e=65537 PKCS1.5 signature against an expected
+// SHA-1 hash.  Returns 0 on failure, 1 on success.
+int RSA_e_f4_verify(const RSAPublicKey* key,
+                    const uint8_t* signature,
+                    const int len,
+                    const uint8_t* sha) {
+  uint8_t buf[RSANUMBYTES];
+  int i;
+
+  if (key->len != RSANUMWORDS) {
+    return 0;  // Wrong key passed in.
+  }
+
+  if (len != sizeof(buf)) {
+    return 0;  // Wrong input length.
+  }
+
+  if (key->exponent != 65537) {
+      return 0;  // Wrong exponent.
+  }
+
+  for (i = 0; i < len; ++i) {  // Copy input to local workspace.
+    buf[i] = signature[i];
+  }
+
+  modpowF4(key, buf);  // In-place exponentiation.
+
+  // Xor sha portion, so it all becomes 00 iff equal.
+  for (i = len - SHA_DIGEST_SIZE; i < len; ++i) {
+    buf[i] ^= *sha++;
+  }
+
+  // Hash resulting buf, in-place.
+  SHA(buf, len, buf);
+
+  // Compare against expected hash value.
+  for (i = 0; i < SHA_DIGEST_SIZE; ++i) {
+    if (buf[i] != kExpectedPadShaRsa2048[i]) {
+      return 0;
+    }
+  }
+
+  return 1;  // All checked out OK.
+}
diff --git a/libmincrypt/tools/DumpPublicKey.java b/libmincrypt/tools/DumpPublicKey.java
index d2935e0..12b4f56 100644
--- a/libmincrypt/tools/DumpPublicKey.java
+++ b/libmincrypt/tools/DumpPublicKey.java
@@ -24,7 +24,6 @@
 import java.security.Key;
 import java.security.PublicKey;
 import java.security.interfaces.RSAPublicKey;
-import sun.misc.BASE64Encoder;
 
 /**
  * Command line tool to extract RSA public keys from X.509 certificates
@@ -34,27 +33,42 @@
 class DumpPublicKey {
     /**
      * @param key to perform sanity checks on
+     * @return version number of key.  Supported versions are:
+     *     1: 2048-bit key with e=3
+     *     2: 2048-bit key with e=65537
      * @throws Exception if the key has the wrong size or public exponent
+
      */
-    static void check(RSAPublicKey key) throws Exception {
+    static int check(RSAPublicKey key) throws Exception {
         BigInteger pubexp = key.getPublicExponent();
         BigInteger modulus = key.getModulus();
+        int version;
 
-        if (!pubexp.equals(BigInteger.valueOf(3)))
-                throw new Exception("Public exponent should be 3 but is " +
-                        pubexp.toString(10) + ".");
+        if (pubexp.equals(BigInteger.valueOf(3))) {
+            version = 1;
+        } else if (pubexp.equals(BigInteger.valueOf(65537))) {
+            version = 2;
+        } else {
+            throw new Exception("Public exponent should be 3 or 65537 but is " +
+                                pubexp.toString(10) + ".");
+        }
 
-        if (modulus.bitLength() != 2048)
+        if (modulus.bitLength() != 2048) {
              throw new Exception("Modulus should be 2048 bits long but is " +
                         modulus.bitLength() + " bits.");
+        }
+
+        return version;
     }
 
     /**
      * @param key to output
-     * @return a C initializer representing this public key.
+     * @return a String representing this public key.  If the key is a
+     *    version 1 key, the string will be a C initializer; this is
+     *    not true for newer key versions.
      */
     static String print(RSAPublicKey key) throws Exception {
-        check(key);
+        int version = check(key);
 
         BigInteger N = key.getModulus();
 
@@ -62,6 +76,12 @@
 
         int nwords = N.bitLength() / 32;    // # of 32 bit integers in modulus
 
+        if (version > 1) {
+            result.append("v");
+            result.append(Integer.toString(version));
+            result.append(" ");
+        }
+
         result.append("{");
         result.append(nwords);
 
diff --git a/libnetutils/dhcp_utils.c b/libnetutils/dhcp_utils.c
index 903a1db..d0ca90a 100644
--- a/libnetutils/dhcp_utils.c
+++ b/libnetutils/dhcp_utils.c
@@ -29,6 +29,7 @@
 static const char DAEMON_PROP_NAME[]   = "init.svc.dhcpcd";
 static const char HOSTNAME_PROP_NAME[] = "net.hostname";
 static const char DHCP_PROP_NAME_PREFIX[]  = "dhcp";
+static const char DHCP_CONFIG_PATH[]   = "/system/etc/dhcpcd/dhcpcd.conf";
 static const int NAP_TIME = 200;   /* wait for 200ms at a time */
                                   /* when polling for property values */
 static const char DAEMON_NAME_RENEW[]  = "iprenew";
@@ -170,7 +171,7 @@
  * The device init.rc file needs a corresponding entry for this work.
  *
  * Example:
- * service dhcpcd_<interface> /system/bin/dhcpcd -ABKL
+ * service dhcpcd_<interface> /system/bin/dhcpcd -ABKL -f dhcpcd.conf
  */
 int dhcp_do_request(const char *interface,
                     char *ipaddr,
@@ -185,7 +186,7 @@
     char result_prop_name[PROPERTY_KEY_MAX];
     char daemon_prop_name[PROPERTY_KEY_MAX];
     char prop_value[PROPERTY_VALUE_MAX] = {'\0'};
-    char daemon_cmd[PROPERTY_VALUE_MAX * 2];
+    char daemon_cmd[PROPERTY_VALUE_MAX * 2 + sizeof(DHCP_CONFIG_PATH)];
     const char *ctrl_prop = "ctl.start";
     const char *desired_status = "running";
     /* Interface name after converting p2p0-p2p0-X to p2p to reuse system properties */
@@ -206,10 +207,11 @@
 
     /* Start the daemon and wait until it's ready */
     if (property_get(HOSTNAME_PROP_NAME, prop_value, NULL) && (prop_value[0] != '\0'))
-        snprintf(daemon_cmd, sizeof(daemon_cmd), "%s_%s:-h %s %s", DAEMON_NAME, p2p_interface,
-                 prop_value, interface);
+        snprintf(daemon_cmd, sizeof(daemon_cmd), "%s_%s:-f %s -h %s %s", DAEMON_NAME,
+                 p2p_interface, DHCP_CONFIG_PATH, prop_value, interface);
     else
-        snprintf(daemon_cmd, sizeof(daemon_cmd), "%s_%s:%s", DAEMON_NAME, p2p_interface, interface);
+        snprintf(daemon_cmd, sizeof(daemon_cmd), "%s_%s:-f %s %s", DAEMON_NAME,
+                 DHCP_CONFIG_PATH, p2p_interface, interface);
     memset(prop_value, '\0', PROPERTY_VALUE_MAX);
     property_set(ctrl_prop, daemon_cmd);
     if (wait_for_property(daemon_prop_name, desired_status, 10) < 0) {
diff --git a/libnl_2/Android.mk b/libnl_2/Android.mk
index 1745f5a..deac9de 100644
--- a/libnl_2/Android.mk
+++ b/libnl_2/Android.mk
@@ -1,5 +1,11 @@
+#######################################
+# * Netlink cache not implemented
+# * Library is not thread safe
+#######################################
+
 LOCAL_PATH := $(call my-dir)
 
+
 include $(CLEAR_VARS)
 
 LOCAL_SRC_FILES := \
@@ -22,9 +28,10 @@
 LOCAL_MODULE_TAGS := optional
 include $(BUILD_STATIC_LIBRARY)
 
-#######################################
-# Shared library currently unavailiable
-# * Netlink cache not implemented
-# * Library is not thread safe
-#######################################
-
+include $(CLEAR_VARS)
+LOCAL_SRC_FILES :=
+LOCAL_WHOLE_STATIC_LIBRARIES:= libnl_2
+LOCAL_SHARED_LIBRARIES:= liblog
+LOCAL_MODULE := libnl_2
+LOCAL_MODULE_TAGS := optional
+include $(BUILD_SHARED_LIBRARY)
diff --git a/libnl_2/attr.c b/libnl_2/attr.c
index f3a2b58..2ef7590 100644
--- a/libnl_2/attr.c
+++ b/libnl_2/attr.c
@@ -160,9 +160,31 @@
 	}
 
 	return -EINVAL;
-
 }
 
+/* Add 8 bit integer attribute to netlink message. */
+int nla_put_u8(struct nl_msg *msg, int attrtype, uint8_t value)
+{
+	return nla_put(msg, attrtype, sizeof(uint8_t), &value);
+}
+
+/* Add 16 bit integer attribute to netlink message. */
+int nla_put_u16(struct nl_msg *msg, int attrtype, uint16_t value)
+{
+	return nla_put(msg, attrtype, sizeof(uint16_t), &value);
+}
+
+/* Add 32 bit integer attribute to netlink message. */
+int nla_put_u32(struct nl_msg *msg, int attrtype, uint32_t value)
+{
+	return nla_put(msg, attrtype, sizeof(uint32_t), &value);
+}
+
+/* Add 64 bit integer attribute to netlink message. */
+int nla_put_u64(struct nl_msg *msg, int attrtype, uint64_t value)
+{
+	return nla_put(msg, attrtype, sizeof(uint64_t), &value);
+}
 
 /* Add nested attributes to netlink message. */
 /* Takes the attributes found in the nested message and appends them
diff --git a/libnl_2/genl/genl.c b/libnl_2/genl/genl.c
index 1e127af..1a39c6a 100644
--- a/libnl_2/genl/genl.c
+++ b/libnl_2/genl/genl.c
@@ -22,6 +22,8 @@
 #include <sys/time.h>
 #include <sys/socket.h>
 #include <linux/netlink.h>
+#include <netlink/genl/ctrl.h>
+#include <netlink/genl/family.h>
 #include "netlink-types.h"
 
 /* Get head of attribute data. */
@@ -251,7 +253,6 @@
 struct genl_family *genl_ctrl_search_by_name(struct nl_cache *cache, \
 					const char *name)
 {
-	/* TODO: When will we release this memory ? */
 	struct genl_family *gf = (struct genl_family *) \
 		malloc(sizeof(struct genl_family));
 	if (!gf)
@@ -263,7 +264,7 @@
 
 	/* Overriding cache pointer as family id for now */
 	gf->gf_id = (uint16_t) ((uint32_t) cache);
-	strcpy(gf->gf_name, "nl80211");
+	strncpy(gf->gf_name, name, GENL_NAMSIZ);
 
 	return gf;
 fail:
@@ -273,15 +274,29 @@
 
 int genl_ctrl_resolve(struct nl_sock *sk, const char *name)
 {
+	struct nl_cache *cache = NULL;
+	struct genl_family *gf = NULL;
+	int id = -1;
+
 	/* Hack to support wpa_supplicant */
 	if (strcmp(name, "nlctrl") == 0)
 		return NETLINK_GENERIC;
-	else {
-		int errsv = errno;
-		fprintf(stderr, \
-			"Only nlctrl supported by genl_ctrl_resolve!\n");
-		return -errsv;
+
+	if (strcmp(name, "nl80211") != 0) {
+		fprintf(stderr, "%s is not supported\n", name);
+		return id;
 	}
 
-}
+	if (!genl_ctrl_alloc_cache(sk, &cache)) {
+		gf = genl_ctrl_search_by_name(cache, name);
+		if (gf)
+			id = genl_family_get_id(gf);
+	}
 
+	if (gf)
+		genl_family_put(gf);
+	if (cache)
+		nl_cache_free(cache);
+
+	return id;
+}
diff --git a/libnl_2/socket.c b/libnl_2/socket.c
index d906cac..e94eb9e 100644
--- a/libnl_2/socket.c
+++ b/libnl_2/socket.c
@@ -127,3 +127,15 @@
 {
 	return sk->s_fd;
 }
+
+void nl_socket_set_cb(struct nl_sock *sk, struct nl_cb *cb)
+{
+	nl_cb_put(sk->s_cb);
+	sk->s_cb = cb;
+	nl_cb_get(cb);
+}
+
+struct nl_cb *nl_socket_get_cb(struct nl_sock *sk)
+{
+	return nl_cb_get(sk->s_cb);
+}
diff --git a/libsuspend/autosuspend_autosleep.c b/libsuspend/autosuspend_autosleep.c
index dd0dfef..5451615 100644
--- a/libsuspend/autosuspend_autosleep.c
+++ b/libsuspend/autosuspend_autosleep.c
@@ -95,5 +95,8 @@
     }
 
     ALOGI("Selected autosleep\n");
+
+    autosuspend_autosleep_disable();
+
     return &autosuspend_autosleep_ops;
 }
diff --git a/libsuspend/autosuspend_earlysuspend.c b/libsuspend/autosuspend_earlysuspend.c
index 2c2aa36..1df8c6a 100644
--- a/libsuspend/autosuspend_earlysuspend.c
+++ b/libsuspend/autosuspend_earlysuspend.c
@@ -16,6 +16,8 @@
 
 #include <errno.h>
 #include <fcntl.h>
+#include <pthread.h>
+#include <stdbool.h>
 #include <stddef.h>
 #include <string.h>
 #include <sys/types.h>
@@ -31,11 +33,75 @@
 #define EARLYSUSPEND_WAIT_FOR_FB_SLEEP "/sys/power/wait_for_fb_sleep"
 #define EARLYSUSPEND_WAIT_FOR_FB_WAKE "/sys/power/wait_for_fb_wake"
 
-
 static int sPowerStatefd;
 static const char *pwr_state_mem = "mem";
 static const char *pwr_state_on = "on";
+static pthread_t earlysuspend_thread;
+static pthread_mutex_t earlysuspend_mutex = PTHREAD_MUTEX_INITIALIZER;
+static pthread_cond_t earlysuspend_cond = PTHREAD_COND_INITIALIZER;
+static bool wait_for_earlysuspend;
+static enum {
+    EARLYSUSPEND_ON,
+    EARLYSUSPEND_MEM,
+} earlysuspend_state = EARLYSUSPEND_ON;
 
+int wait_for_fb_wake(void)
+{
+    int err = 0;
+    char buf;
+    int fd = open(EARLYSUSPEND_WAIT_FOR_FB_WAKE, O_RDONLY, 0);
+    // if the file doesn't exist, the error will be caught in read() below
+    do {
+        err = read(fd, &buf, 1);
+    } while (err < 0 && errno == EINTR);
+    ALOGE_IF(err < 0,
+            "*** ANDROID_WAIT_FOR_FB_WAKE failed (%s)", strerror(errno));
+    close(fd);
+    return err < 0 ? err : 0;
+}
+
+static int wait_for_fb_sleep(void)
+{
+    int err = 0;
+    char buf;
+    int fd = open(EARLYSUSPEND_WAIT_FOR_FB_SLEEP, O_RDONLY, 0);
+    // if the file doesn't exist, the error will be caught in read() below
+    do {
+        err = read(fd, &buf, 1);
+    } while (err < 0 && errno == EINTR);
+    ALOGE_IF(err < 0,
+            "*** ANDROID_WAIT_FOR_FB_SLEEP failed (%s)", strerror(errno));
+    close(fd);
+    return err < 0 ? err : 0;
+}
+
+static void *earlysuspend_thread_func(void *arg)
+{
+    char buf[80];
+    char wakeup_count[20];
+    int wakeup_count_len;
+    int ret;
+
+    while (1) {
+        if (wait_for_fb_sleep()) {
+            ALOGE("Failed reading wait_for_fb_sleep, exiting earlysuspend thread\n");
+            return NULL;
+        }
+        pthread_mutex_lock(&earlysuspend_mutex);
+        earlysuspend_state = EARLYSUSPEND_MEM;
+        pthread_cond_signal(&earlysuspend_cond);
+        pthread_mutex_unlock(&earlysuspend_mutex);
+
+        if (wait_for_fb_wake()) {
+            ALOGE("Failed reading wait_for_fb_wake, exiting earlysuspend thread\n");
+            return NULL;
+        }
+        pthread_mutex_lock(&earlysuspend_mutex);
+        earlysuspend_state = EARLYSUSPEND_ON;
+        pthread_cond_signal(&earlysuspend_cond);
+        pthread_mutex_unlock(&earlysuspend_mutex);
+    }
+}
 static int autosuspend_earlysuspend_enable(void)
 {
     char buf[80];
@@ -50,6 +116,14 @@
         goto err;
     }
 
+    if (wait_for_earlysuspend) {
+        pthread_mutex_lock(&earlysuspend_mutex);
+        while (earlysuspend_state != EARLYSUSPEND_MEM) {
+            pthread_cond_wait(&earlysuspend_cond, &earlysuspend_mutex);
+        }
+        pthread_mutex_unlock(&earlysuspend_mutex);
+    }
+
     ALOGV("autosuspend_earlysuspend_enable done\n");
 
     return 0;
@@ -72,6 +146,14 @@
         goto err;
     }
 
+    if (wait_for_earlysuspend) {
+        pthread_mutex_lock(&earlysuspend_mutex);
+        while (earlysuspend_state != EARLYSUSPEND_ON) {
+            pthread_cond_wait(&earlysuspend_cond, &earlysuspend_mutex);
+        }
+        pthread_mutex_unlock(&earlysuspend_mutex);
+    }
+
     ALOGV("autosuspend_earlysuspend_disable done\n");
 
     return 0;
@@ -85,29 +167,61 @@
         .disable = autosuspend_earlysuspend_disable,
 };
 
-struct autosuspend_ops *autosuspend_earlysuspend_init(void)
+void start_earlysuspend_thread(void)
 {
     char buf[80];
     int ret;
 
     ret = access(EARLYSUSPEND_WAIT_FOR_FB_SLEEP, F_OK);
     if (ret < 0) {
-        return NULL;
+        return;
     }
 
     ret = access(EARLYSUSPEND_WAIT_FOR_FB_WAKE, F_OK);
     if (ret < 0) {
-        return NULL;
+        return;
     }
 
+    wait_for_fb_wake();
+
+    ALOGI("Starting early suspend unblocker thread\n");
+    ret = pthread_create(&earlysuspend_thread, NULL, earlysuspend_thread_func, NULL);
+    if (ret) {
+        strerror_r(errno, buf, sizeof(buf));
+        ALOGE("Error creating thread: %s\n", buf);
+        return;
+    }
+
+    wait_for_earlysuspend = true;
+}
+
+struct autosuspend_ops *autosuspend_earlysuspend_init(void)
+{
+    char buf[80];
+    int ret;
+
     sPowerStatefd = open(EARLYSUSPEND_SYS_POWER_STATE, O_RDWR);
 
     if (sPowerStatefd < 0) {
         strerror_r(errno, buf, sizeof(buf));
-        ALOGE("Error opening %s: %s\n", EARLYSUSPEND_SYS_POWER_STATE, buf);
+        ALOGW("Error opening %s: %s\n", EARLYSUSPEND_SYS_POWER_STATE, buf);
         return NULL;
     }
 
+    ret = write(sPowerStatefd, "on", 2);
+    if (ret < 0) {
+        strerror_r(errno, buf, sizeof(buf));
+        ALOGW("Error writing 'on' to %s: %s\n", EARLYSUSPEND_SYS_POWER_STATE, buf);
+        goto err_write;
+    }
+
     ALOGI("Selected early suspend\n");
+
+    start_earlysuspend_thread();
+
     return &autosuspend_earlysuspend_ops;
+
+err_write:
+    close(sPowerStatefd);
+    return NULL;
 }
diff --git a/libsync/sync.c b/libsync/sync.c
index 311da14..4892866 100644
--- a/libsync/sync.c
+++ b/libsync/sync.c
@@ -20,15 +20,16 @@
 #include <stdint.h>
 #include <string.h>
 
+#include <linux/sync.h>
+#include <linux/sw_sync.h>
+
 #include <sys/ioctl.h>
 #include <sys/stat.h>
 #include <sys/types.h>
 
-#include <sync/sync.h>
-
-int sync_wait(int fd, unsigned int timeout)
+int sync_wait(int fd, int timeout)
 {
-    __u32 to = timeout;
+    __s32 to = timeout;
 
     return ioctl(fd, SYNC_IOC_WAIT, &to);
 }
diff --git a/libusbhost/usbhost.c b/libusbhost/usbhost.c
index 5d261cd..c059b89 100644
--- a/libusbhost/usbhost.c
+++ b/libusbhost/usbhost.c
@@ -49,7 +49,8 @@
 
 #include "usbhost/usbhost.h"
 
-#define USB_FS_DIR "/dev/bus/usb"
+#define DEV_DIR             "/dev"
+#define USB_FS_DIR          "/dev/bus/usb"
 #define USB_FS_ID_SCANNER   "/dev/bus/usb/%d/%d"
 #define USB_FS_ID_FORMAT    "/dev/bus/usb/%03d/%03d"
 
@@ -77,39 +78,72 @@
     return 0;
 }
 
+static int find_existing_devices_bus(char *busname,
+                                     usb_device_added_cb added_cb,
+                                     void *client_data)
+{
+    char devname[32];
+    DIR *devdir;
+    struct dirent *de;
+    int done = 0;
+
+    devdir = opendir(busname);
+    if(devdir == 0) return 0;
+
+    while ((de = readdir(devdir)) && !done) {
+        if(badname(de->d_name)) continue;
+
+        snprintf(devname, sizeof(devname), "%s/%s", busname, de->d_name);
+        done = added_cb(devname, client_data);
+    } // end of devdir while
+    closedir(devdir);
+
+    return done;
+}
+
 /* returns true if one of the callbacks indicates we are done */
 static int find_existing_devices(usb_device_added_cb added_cb,
-                                  usb_device_removed_cb removed_cb,
                                   void *client_data)
 {
-    char busname[32], devname[32];
-    DIR *busdir , *devdir ;
+    char busname[32];
+    DIR *busdir;
     struct dirent *de;
     int done = 0;
 
     busdir = opendir(USB_FS_DIR);
-    if(busdir == 0) return 1;
+    if(busdir == 0) return 0;
 
     while ((de = readdir(busdir)) != 0 && !done) {
         if(badname(de->d_name)) continue;
 
-        snprintf(busname, sizeof busname, "%s/%s", USB_FS_DIR, de->d_name);
-        devdir = opendir(busname);
-        if(devdir == 0) continue;
-
-        while ((de = readdir(devdir)) && !done) {
-            if(badname(de->d_name)) continue;
-
-            snprintf(devname, sizeof devname, "%s/%s", busname, de->d_name);
-            done = added_cb(devname, client_data);
-        } // end of devdir while
-        closedir(devdir);
-    } //end of busdir while
+        snprintf(busname, sizeof(busname), "%s/%s", USB_FS_DIR, de->d_name);
+        done = find_existing_devices_bus(busname, added_cb,
+                                         client_data);
+    }
     closedir(busdir);
 
     return done;
 }
 
+static void watch_existing_subdirs(struct usb_host_context *context,
+                                   int *wds, int wd_count)
+{
+    char path[100];
+    int i, ret;
+
+    wds[0] = inotify_add_watch(context->fd, USB_FS_DIR, IN_CREATE | IN_DELETE);
+    if (wds[0] < 0)
+        return;
+
+    /* watch existing subdirectories of USB_FS_DIR */
+    for (i = 1; i < wd_count; i++) {
+        snprintf(path, sizeof(path), "%s/%03d", USB_FS_DIR, i);
+        ret = inotify_add_watch(context->fd, path, IN_CREATE | IN_DELETE);
+        if (ret >= 0)
+            wds[i] = ret;
+    }
+}
+
 struct usb_host_context *usb_host_init()
 {
     struct usb_host_context *context = calloc(1, sizeof(struct usb_host_context));
@@ -142,32 +176,28 @@
     char event_buf[512];
     char path[100];
     int i, ret, done = 0;
-    int wd, wds[10];
+    int wd, wdd, wds[10];
     int wd_count = sizeof(wds) / sizeof(wds[0]);
 
     D("Created device discovery thread\n");
 
     /* watch for files added and deleted within USB_FS_DIR */
-    memset(wds, 0, sizeof(wds));
+    for (i = 0; i < wd_count; i++)
+        wds[i] = -1;
+
     /* watch the root for new subdirectories */
-    wds[0] = inotify_add_watch(context->fd, USB_FS_DIR, IN_CREATE | IN_DELETE);
-    if (wds[0] < 0) {
+    wdd = inotify_add_watch(context->fd, DEV_DIR, IN_CREATE | IN_DELETE);
+    if (wdd < 0) {
         fprintf(stderr, "inotify_add_watch failed\n");
         if (discovery_done_cb)
             discovery_done_cb(client_data);
         return;
     }
 
-    /* watch existing subdirectories of USB_FS_DIR */
-    for (i = 1; i < wd_count; i++) {
-        snprintf(path, sizeof(path), "%s/%03d", USB_FS_DIR, i);
-        ret = inotify_add_watch(context->fd, path, IN_CREATE | IN_DELETE);
-        if (ret > 0)
-            wds[i] = ret;
-    }
+    watch_existing_subdirs(context, wds, wd_count);
 
     /* check for existing devices first, after we have inotify set up */
-    done = find_existing_devices(added_cb, removed_cb, client_data);
+    done = find_existing_devices(added_cb, client_data);
     if (discovery_done_cb)
         done |= discovery_done_cb(client_data);
 
@@ -176,14 +206,35 @@
         if (ret >= (int)sizeof(struct inotify_event)) {
             event = (struct inotify_event *)event_buf;
             wd = event->wd;
-            if (wd == wds[0]) {
+            if (wd == wdd) {
+                if ((event->mask & IN_CREATE) && !strcmp(event->name, "bus")) {
+                    watch_existing_subdirs(context, wds, wd_count);
+                    done = find_existing_devices(added_cb, client_data);
+                } else if ((event->mask & IN_DELETE) && !strcmp(event->name, "bus")) {
+                    for (i = 0; i < wd_count; i++) {
+                        if (wds[i] >= 0) {
+                            inotify_rm_watch(context->fd, wds[i]);
+                            wds[i] = -1;
+                        }
+                    }
+                }
+            } else if (wd == wds[0]) {
                 i = atoi(event->name);
                 snprintf(path, sizeof(path), "%s/%s", USB_FS_DIR, event->name);
-                D("new subdirectory %s: index: %d\n", path, i);
+                D("%s subdirectory %s: index: %d\n", (event->mask & IN_CREATE) ?
+                                                     "new" : "gone", path, i);
                 if (i > 0 && i < wd_count) {
-                ret = inotify_add_watch(context->fd, path, IN_CREATE | IN_DELETE);
-                if (ret > 0)
-                    wds[i] = ret;
+                    if (event->mask & IN_CREATE) {
+                        ret = inotify_add_watch(context->fd, path,
+                                                IN_CREATE | IN_DELETE);
+                        if (ret >= 0)
+                            wds[i] = ret;
+                        done = find_existing_devices_bus(path, added_cb,
+                                                         client_data);
+                    } else if (event->mask & IN_DELETE) {
+                        inotify_rm_watch(context->fd, wds[i]);
+                        wds[i] = -1;
+                    }
                 }
             } else {
                 for (i = 1; i < wd_count && !done; i++) {
diff --git a/logcat/event.logtags b/logcat/event.logtags
index 2e814ff..6040bd9 100644
--- a/logcat/event.logtags
+++ b/logcat/event.logtags
@@ -134,5 +134,24 @@
 70200 aggregation (aggregation time|2|3)
 70201 aggregation_test (field1|1|2),(field2|1|2),(field3|1|2),(field4|1|2),(field5|1|2)
 
+# libc failure logging
+80100 bionic_event_memcpy_buffer_overflow (uid|1)
+80105 bionic_event_strcat_buffer_overflow (uid|1)
+80110 bionic_event_memmov_buffer_overflow (uid|1)
+80115 bionic_event_strncat_buffer_overflow (uid|1)
+80120 bionic_event_strncpy_buffer_overflow (uid|1)
+80125 bionic_event_memset_buffer_overflow (uid|1)
+80130 bionic_event_strcpy_buffer_overflow (uid|1)
+
+80200 bionic_event_strcat_integer_overflow (uid|1)
+80205 bionic_event_strncat_integer_overflow (uid|1)
+
+80300 bionic_event_resolver_old_response (uid|1)
+80305 bionic_event_resolver_wrong_server (uid|1)
+80310 bionic_event_resolver_wrong_query (uid|1)
+
+# libcore failure logging
+90100 cert_pin_failure (certs|4)
+
 # NOTE - the range 1000000-2000000 is reserved for partners and others who
 # want to define their own log tags without conflicting with the core platform.
diff --git a/rootdir/init.rc b/rootdir/init.rc
index 0cd906c..caef358 100644
--- a/rootdir/init.rc
+++ b/rootdir/init.rc
@@ -4,8 +4,8 @@
 # This is a common source of Android security bugs.
 #
 
-import /init.${ro.hardware}.rc
 import /init.usb.rc
+import /init.${ro.hardware}.rc
 import /init.trace.rc
 
 on early-init
@@ -34,6 +34,7 @@
     export ANDROID_ROOT /system
     export ANDROID_ASSETS /system/app
     export ANDROID_DATA /data
+    export ANDROID_STORAGE /storage
     export ASEC_MOUNTPOINT /mnt/asec
     export LOOP_MOUNTPOINT /mnt/obb
     export BOOTCLASSPATH /system/framework/core.jar:/system/framework/core-junit.jar:/system/framework/bouncycastle.jar:/system/framework/ext.jar:/system/framework/framework.jar:/system/framework/telephony-common.jar:/system/framework/mms-common.jar:/system/framework/android.policy.jar:/system/framework/services.jar:/system/framework/apache-xml.jar
@@ -56,8 +57,14 @@
     mkdir /cache 0770 system cache
     mkdir /config 0500 root root
 
+    # See storage config details at http://source.android.com/tech/storage/
+    mkdir /mnt/shell 0700 shell shell
+    mkdir /storage 0050 root sdcard_r
+
     # Directory for putting things only root should see.
     mkdir /mnt/secure 0700 root root
+    # Create private mountpoint so we can MS_MOVE from staging
+    mount tmpfs tmpfs /mnt/secure mode=0700,uid=0,gid=0
 
     # Directory for staging bindmounts
     mkdir /mnt/secure/staging 0700 root root
@@ -128,6 +135,9 @@
 on post-fs
     # once everything is setup, no need to modify /
     mount rootfs rootfs / ro remount
+    # mount shared so changes propagate into child namespaces
+    mount rootfs rootfs / shared rec
+    mount tmpfs tmpfs /mnt/secure private rec
 
     # We chown/chmod /cache again so because mount is run as root + defaults
     chown system cache /cache
@@ -145,11 +155,16 @@
     chown root log /proc/vmallocinfo
     chmod 0440 /proc/vmallocinfo
 
+    chown root log /proc/slabinfo
+    chmod 0440 /proc/slabinfo
+
     #change permissions on kmsg & sysrq-trigger so bugreports can grab kthread stacks
     chown root system /proc/kmsg
     chmod 0440 /proc/kmsg
     chown root system /proc/sysrq-trigger
     chmod 0220 /proc/sysrq-trigger
+    chown system log /proc/last_kmsg
+    chmod 0440 /proc/last_kmsg
 
     # create the lost+found directories, so as to enforce our permissions
     mkdir /cache/lost+found 0770 root root
@@ -179,10 +194,12 @@
 
     # create basic filesystem structure
     mkdir /data/misc 01771 system misc
-    mkdir /data/misc/bluetoothd 0770 bluetooth bluetooth
+    mkdir /data/misc/adb 02750 system shell
+    mkdir /data/misc/bluedroid 0770 bluetooth net_bt_stack
     mkdir /data/misc/bluetooth 0770 system system
     mkdir /data/misc/keystore 0700 keystore keystore
     mkdir /data/misc/keychain 0771 system system
+    mkdir /data/misc/sms 0770 system radio
     mkdir /data/misc/vpn 0770 system vpn
     mkdir /data/misc/systemkeys 0700 system system
     # give system access to wpa_supplicant.conf for backup and restore
@@ -196,6 +213,7 @@
     mkdir /data/data 0771 system system
     mkdir /data/app-private 0771 system system
     mkdir /data/app-asec 0700 root root
+    mkdir /data/app-lib 0771 system system
     mkdir /data/app 0771 system system
     mkdir /data/property 0700 root root
     mkdir /data/ssh 0750 root shell
@@ -251,6 +269,7 @@
     chown radio system /sys/android_power/acquire_full_wake_lock
     chown radio system /sys/android_power/acquire_partial_wake_lock
     chown radio system /sys/android_power/release_wake_lock
+    chown system system /sys/power/autosleep
     chown system system /sys/power/state
     chown system system /sys/power/wakeup_count
     chown radio system /sys/power/wake_lock
@@ -376,6 +395,7 @@
 # adbd is controlled via property triggers in init.<platform>.usb.rc
 service adbd /sbin/adbd
     class core
+    socket adbd stream 660 system system
     disabled
     seclabel u:r:adbd:s0
 
@@ -412,12 +432,12 @@
     socket rild stream 660 root radio
     socket rild-debug stream 660 radio system
     user root
-    group radio cache inet misc audio sdcard_r sdcard_rw log
+    group radio cache inet misc audio log
 
 service surfaceflinger /system/bin/surfaceflinger
     class main
     user system
-    group graphics
+    group graphics drmrpc
     onrestart restart zygote
 
 service zygote /system/bin/app_process -Xzygote /system/bin --zygote --start-system-server
@@ -431,7 +451,7 @@
 service drm /system/bin/drmserver
     class main
     user drm
-    group drm system inet drmrpc sdcard_r
+    group drm system inet drmrpc
 
 service media /system/bin/mediaserver
     class main
@@ -446,21 +466,6 @@
     disabled
     oneshot
 
-service dbus /system/bin/dbus-daemon --system --nofork
-    class main
-    socket dbus stream 660 bluetooth bluetooth
-    user bluetooth
-    group bluetooth net_bt_admin
-
-service bluetoothd /system/bin/bluetoothd -n
-    class main
-    socket bluetooth stream 660 bluetooth bluetooth
-    socket dbus_bluetooth stream 660 bluetooth bluetooth
-    # init.rc does not yet support applying capabilities, so run as root and
-    # let bluetoothd drop uid to bluetooth with the right linux capabilities
-    group bluetooth net_bt_admin misc
-    disabled
-
 service installd /system/bin/installd
     class main
     socket installd stream 600 system system
diff --git a/rootdir/ueventd.rc b/rootdir/ueventd.rc
index c1fca00..72c4078 100644
--- a/rootdir/ueventd.rc
+++ b/rootdir/ueventd.rc
@@ -27,6 +27,7 @@
 /dev/android_adb          0660   adb        adb
 /dev/android_adb_enable   0660   adb        adb
 /dev/ttyMSM0              0600   bluetooth  bluetooth
+/dev/uhid                 0660   system     net_bt_stack
 /dev/uinput               0660   system     bluetooth
 /dev/alarm                0664   system     radio
 /dev/tty0                 0660   root       system
diff --git a/sdcard/Android.mk b/sdcard/Android.mk
index c430ac8..fb04d6d 100644
--- a/sdcard/Android.mk
+++ b/sdcard/Android.mk
@@ -4,6 +4,7 @@
 
 LOCAL_SRC_FILES:= sdcard.c
 LOCAL_MODULE:= sdcard
+LOCAL_CFLAGS := -Wall -Wno-unused-parameter
 
 LOCAL_SHARED_LIBRARIES := libc
 
diff --git a/sdcard/sdcard.c b/sdcard/sdcard.c
index ad2f2ab..8d87ee9 100644
--- a/sdcard/sdcard.c
+++ b/sdcard/sdcard.c
@@ -25,7 +25,9 @@
 #include <sys/statfs.h>
 #include <sys/uio.h>
 #include <dirent.h>
+#include <limits.h>
 #include <ctype.h>
+#include <pthread.h>
 
 #include <private/android_filesystem_config.h>
 
@@ -40,12 +42,10 @@
  * permissions at creation, owner, group, and permissions are not 
  * changeable, symlinks and hardlinks are not createable, etc.
  *
- * usage:  sdcard <path> <uid> <gid>
+ * See usage() for command line options.
  *
- * It must be run as root, but will change to uid/gid as soon as it
- * mounts a filesystem on /storage/sdcard.  It will refuse to run if uid or
- * gid are zero.
- *
+ * It must be run as root, but will drop to requested UID/GID as soon as it
+ * mounts a filesystem.  It will refuse to run if requested UID/GID are zero.
  *
  * Things I believe to be true:
  *
@@ -55,7 +55,6 @@
  * - if an op that returns a fuse_entry fails writing the reply to the
  * kernel, you must rollback the refcount to reflect the reference the
  * kernel did not actually acquire
- *
  */
 
 #define FUSE_TRACE 0
@@ -70,30 +69,42 @@
 
 #define FUSE_UNKNOWN_INO 0xffffffff
 
-#define MOUNT_POINT "/storage/sdcard0"
+/* Maximum number of bytes to write in one request. */
+#define MAX_WRITE (256 * 1024)
+
+/* Maximum number of bytes to read in one request. */
+#define MAX_READ (128 * 1024)
+
+/* Largest possible request.
+ * The request size is bounded by the maximum size of a FUSE_WRITE request because it has
+ * the largest possible data payload. */
+#define MAX_REQUEST_SIZE (sizeof(struct fuse_in_header) + sizeof(struct fuse_write_in) + MAX_WRITE)
+
+/* Default number of threads. */
+#define DEFAULT_NUM_THREADS 2
+
+/* Pseudo-error constant used to indicate that no fuse status is needed
+ * or that a reply has already been written. */
+#define NO_STATUS 1
 
 struct handle {
-    struct node *node;
     int fd;
 };
 
 struct dirhandle {
-    struct node *node;
     DIR *d;
 };
 
 struct node {
+    __u32 refcount;
     __u64 nid;
     __u64 gen;
 
     struct node *next;          /* per-dir sibling list */
     struct node *child;         /* first contained file by this dir */
-    struct node *all;           /* global node list */
     struct node *parent;        /* containing directory */
 
-    __u32 refcount;
-    __u32 namelen;
-
+    size_t namelen;
     char *name;
     /* If non-null, this is the real name of the file in the underlying storage.
      * This may differ from the field "name" only by case.
@@ -103,95 +114,166 @@
     char *actual_name;
 };
 
+/* Global data structure shared by all fuse handlers. */
 struct fuse {
+    pthread_mutex_t lock;
+
     __u64 next_generation;
-    __u64 next_node_id;
-
     int fd;
-
-    struct node *all;
-
     struct node root;
-    char rootpath[1024];
+    char rootpath[PATH_MAX];
 };
 
-#define PATH_BUFFER_SIZE 1024
+/* Private data used by a single fuse handler. */
+struct fuse_handler {
+    struct fuse* fuse;
+    int token;
 
-#define NO_CASE_SENSITIVE_MATCH 0
-#define CASE_SENSITIVE_MATCH 1
+    /* To save memory, we never use the contents of the request buffer and the read
+     * buffer at the same time.  This allows us to share the underlying storage. */
+    union {
+        __u8 request_buffer[MAX_REQUEST_SIZE];
+        __u8 read_buffer[MAX_READ];
+    };
+};
 
-/*
- * Get the real-life absolute path to a node.
- *   node: start at this node
- *   buf: storage for returned string
- *   name: append this string to path if set
- */
-char *do_node_get_path(struct node *node, char *buf, const char *name, int match_case_insensitive)
+static inline void *id_to_ptr(__u64 nid)
 {
-    struct node *in_node = node;
-    const char *in_name = name;
-    char *out = buf + PATH_BUFFER_SIZE - 1;
-    int len;
-    out[0] = 0;
+    return (void *) (uintptr_t) nid;
+}
 
-    if (name) {
-        len = strlen(name);
-        goto start;
-    }
+static inline __u64 ptr_to_id(void *ptr)
+{
+    return (__u64) (uintptr_t) ptr;
+}
 
-    while (node) {
-        name = (node->actual_name ? node->actual_name : node->name);
-        len = node->namelen;
-        node = node->parent;
-    start:
-        if ((len + 1) > (out - buf))
-            return 0;
-        out -= len;
-        memcpy(out, name, len);
-        /* avoid double slash at beginning of path */
-        if (out[0] != '/') {
-            out --;
-            out[0] = '/';
+static void acquire_node_locked(struct node* node)
+{
+    node->refcount++;
+    TRACE("ACQUIRE %p (%s) rc=%d\n", node, node->name, node->refcount);
+}
+
+static void remove_node_from_parent_locked(struct node* node);
+
+static void release_node_locked(struct node* node)
+{
+    TRACE("RELEASE %p (%s) rc=%d\n", node, node->name, node->refcount);
+    if (node->refcount > 0) {
+        node->refcount--;
+        if (!node->refcount) {
+            TRACE("DESTROY %p (%s)\n", node, node->name);
+            remove_node_from_parent_locked(node);
+
+                /* TODO: remove debugging - poison memory */
+            memset(node->name, 0xef, node->namelen);
+            free(node->name);
+            free(node->actual_name);
+            memset(node, 0xfc, sizeof(*node));
+            free(node);
         }
+    } else {
+        ERROR("Zero refcnt %p\n", node);
+    }
+}
+
+static void add_node_to_parent_locked(struct node *node, struct node *parent) {
+    node->parent = parent;
+    node->next = parent->child;
+    parent->child = node;
+    acquire_node_locked(parent);
+}
+
+static void remove_node_from_parent_locked(struct node* node)
+{
+    if (node->parent) {
+        if (node->parent->child == node) {
+            node->parent->child = node->parent->child->next;
+        } else {
+            struct node *node2;
+            node2 = node->parent->child;
+            while (node2->next != node)
+                node2 = node2->next;
+            node2->next = node->next;
+        }
+        release_node_locked(node->parent);
+        node->parent = NULL;
+        node->next = NULL;
+    }
+}
+
+/* Gets the absolute path to a node into the provided buffer.
+ *
+ * Populates 'buf' with the path and returns the length of the path on success,
+ * or returns -1 if the path is too long for the provided buffer.
+ */
+static ssize_t get_node_path_locked(struct node* node, char* buf, size_t bufsize)
+{
+    size_t namelen = node->namelen;
+    if (bufsize < namelen + 1) {
+        return -1;
     }
 
-    /* If we are searching for a file within node (rather than computing node's path)
-     * and fail, then we need to look for a case insensitive match.
-     */
-    if (in_name && match_case_insensitive && access(out, F_OK) != 0) {
-        char *path, buffer[PATH_BUFFER_SIZE];
-        DIR* dir;
+    ssize_t pathlen = 0;
+    if (node->parent) {
+        pathlen = get_node_path_locked(node->parent, buf, bufsize - namelen - 2);
+        if (pathlen < 0) {
+            return -1;
+        }
+        buf[pathlen++] = '/';
+    }
+
+    const char* name = node->actual_name ? node->actual_name : node->name;
+    memcpy(buf + pathlen, name, namelen + 1); /* include trailing \0 */
+    return pathlen + namelen;
+}
+
+/* Finds the absolute path of a file within a given directory.
+ * Performs a case-insensitive search for the file and sets the buffer to the path
+ * of the first matching file.  If 'search' is zero or if no match is found, sets
+ * the buffer to the path that the file would have, assuming the name were case-sensitive.
+ *
+ * Populates 'buf' with the path and returns the actual name (within 'buf') on success,
+ * or returns NULL if the path is too long for the provided buffer.
+ */
+static char* find_file_within(const char* path, const char* name,
+        char* buf, size_t bufsize, int search)
+{
+    size_t pathlen = strlen(path);
+    size_t namelen = strlen(name);
+    size_t childlen = pathlen + namelen + 1;
+    char* actual;
+
+    if (bufsize <= childlen) {
+        return NULL;
+    }
+
+    memcpy(buf, path, pathlen);
+    buf[pathlen] = '/';
+    actual = buf + pathlen + 1;
+    memcpy(actual, name, namelen + 1);
+
+    if (search && access(buf, F_OK)) {
         struct dirent* entry;
-        path = do_node_get_path(in_node, buffer, NULL, NO_CASE_SENSITIVE_MATCH);
-        dir = opendir(path);
+        DIR* dir = opendir(path);
         if (!dir) {
             ERROR("opendir %s failed: %s", path, strerror(errno));
-            return out;
+            return actual;
         }
-
         while ((entry = readdir(dir))) {
-            if (!strcasecmp(entry->d_name, in_name)) {
-                /* we have a match - replace the name */
-                len = strlen(in_name);
-                memcpy(buf + PATH_BUFFER_SIZE - len - 1, entry->d_name, len);
+            if (!strcasecmp(entry->d_name, name)) {
+                /* we have a match - replace the name, don't need to copy the null again */
+                memcpy(actual, entry->d_name, namelen);
                 break;
             }
         }
         closedir(dir);
     }
-
-   return out;
+    return actual;
 }
 
-char *node_get_path(struct node *node, char *buf, const char *name)
+static void attr_from_stat(struct fuse_attr *attr, const struct stat *s, __u64 nid)
 {
-    /* We look for case insensitive matches by default */
-    return do_node_get_path(node, buf, name, CASE_SENSITIVE_MATCH);
-}
-
-void attr_from_stat(struct fuse_attr *attr, struct stat *s)
-{
-    attr->ino = s->st_ino;
+    attr->ino = nid;
     attr->size = s->st_size;
     attr->blocks = s->st_blocks;
     attr->atime = s->st_atime;
@@ -218,129 +300,81 @@
     attr->gid = AID_SDCARD_RW;
 }
 
-int node_get_attr(struct node *node, struct fuse_attr *attr)
-{
-    int res;
-    struct stat s;
-    char *path, buffer[PATH_BUFFER_SIZE];
-
-    path = node_get_path(node, buffer, 0);
-    res = lstat(path, &s);
-    if (res < 0) {
-        ERROR("lstat('%s') errno %d\n", path, errno);
-        return -1;
-    }
-
-    attr_from_stat(attr, &s);    
-    attr->ino = node->nid;
-
-    return 0;
-}
-
-static void add_node_to_parent(struct node *node, struct node *parent) {
-    node->parent = parent;
-    node->next = parent->child;
-    parent->child = node;
-    parent->refcount++;
-}
-
-/* Check to see if our parent directory already has a file with a name
- * that differs only by case.  If we find one, store it in the actual_name
- * field so node_get_path will map it to this file in the underlying storage.
- */
-static void node_find_actual_name(struct node *node)
-{
-    char *path, buffer[PATH_BUFFER_SIZE];
-    const char *node_name = node->name;
-    DIR* dir;
-    struct dirent* entry;
-
-    if (!node->parent) return;
-
-    path = node_get_path(node->parent, buffer, 0);
-    dir = opendir(path);
-    if (!dir) {
-        ERROR("opendir %s failed: %s", path, strerror(errno));
-        return;
-    }
-
-    while ((entry = readdir(dir))) {
-        const char *test_name = entry->d_name;
-        if (strcmp(test_name, node_name) && !strcasecmp(test_name, node_name)) {
-            /* we have a match - differs but only by case */
-            node->actual_name = strdup(test_name);
-            if (!node->actual_name) {
-                ERROR("strdup failed - out of memory\n");
-                exit(1);
-            }
-            break;
-        }
-    }
-    closedir(dir);
-}
-
-struct node *node_create(struct node *parent, const char *name, __u64 nid, __u64 gen)
+struct node *create_node_locked(struct fuse* fuse,
+        struct node *parent, const char *name, const char* actual_name)
 {
     struct node *node;
-    int namelen = strlen(name);
+    size_t namelen = strlen(name);
 
     node = calloc(1, sizeof(struct node));
-    if (node == 0) {
-        return 0;
+    if (!node) {
+        return NULL;
     }
     node->name = malloc(namelen + 1);
-    if (node->name == 0) {
+    if (!node->name) {
         free(node);
-        return 0;
+        return NULL;
     }
-
-    node->nid = nid;
-    node->gen = gen;
-    add_node_to_parent(node, parent);
     memcpy(node->name, name, namelen + 1);
+    if (strcmp(name, actual_name)) {
+        node->actual_name = malloc(namelen + 1);
+        if (!node->actual_name) {
+            free(node->name);
+            free(node);
+            return NULL;
+        }
+        memcpy(node->actual_name, actual_name, namelen + 1);
+    }
     node->namelen = namelen;
-    node_find_actual_name(node);
+    node->nid = ptr_to_id(node);
+    node->gen = fuse->next_generation++;
+    acquire_node_locked(node);
+    add_node_to_parent_locked(node, parent);
     return node;
 }
 
-static char *rename_node(struct node *node, const char *name)
+static int rename_node_locked(struct node *node, const char *name,
+        const char* actual_name)
 {
-    node->namelen = strlen(name);
-    char *newname = realloc(node->name, node->namelen + 1);
-    if (newname == 0)
-        return 0;
-    node->name = newname;
-    memcpy(node->name, name, node->namelen + 1);
-    node_find_actual_name(node);
-    return node->name;
+    size_t namelen = strlen(name);
+    int need_actual_name = strcmp(name, actual_name);
+
+    /* make the storage bigger without actually changing the name
+     * in case an error occurs part way */
+    if (namelen > node->namelen) {
+        char* new_name = realloc(node->name, namelen + 1);
+        if (!new_name) {
+            return -ENOMEM;
+        }
+        node->name = new_name;
+        if (need_actual_name && node->actual_name) {
+            char* new_actual_name = realloc(node->actual_name, namelen + 1);
+            if (!new_actual_name) {
+                return -ENOMEM;
+            }
+            node->actual_name = new_actual_name;
+        }
+    }
+
+    /* update the name, taking care to allocate storage before overwriting the old name */
+    if (need_actual_name) {
+        if (!node->actual_name) {
+            node->actual_name = malloc(namelen + 1);
+            if (!node->actual_name) {
+                return -ENOMEM;
+            }
+        }
+        memcpy(node->actual_name, actual_name, namelen + 1);
+    } else {
+        free(node->actual_name);
+        node->actual_name = NULL;
+    }
+    memcpy(node->name, name, namelen + 1);
+    node->namelen = namelen;
+    return 0;
 }
 
-void fuse_init(struct fuse *fuse, int fd, const char *path)
-{
-    fuse->fd = fd;
-    fuse->next_node_id = 2;
-    fuse->next_generation = 0;
-
-    fuse->all = &fuse->root;
-
-    memset(&fuse->root, 0, sizeof(fuse->root));
-    fuse->root.nid = FUSE_ROOT_ID; /* 1 */
-    fuse->root.refcount = 2;
-    rename_node(&fuse->root, path);
-}
-
-static inline void *id_to_ptr(__u64 nid)
-{
-    return (void *) nid;
-}
-
-static inline __u64 ptr_to_id(void *ptr)
-{
-    return (__u64) ptr;
-}
-
-
-struct node *lookup_by_inode(struct fuse *fuse, __u64 nid)
+static struct node *lookup_node_by_id_locked(struct fuse *fuse, __u64 nid)
 {
     if (nid == FUSE_ROOT_ID) {
         return &fuse->root;
@@ -349,9 +383,23 @@
     }
 }
 
-struct node *lookup_child_by_name(struct node *node, const char *name)
+static struct node* lookup_node_and_path_by_id_locked(struct fuse* fuse, __u64 nid,
+        char* buf, size_t bufsize)
+{
+    struct node* node = lookup_node_by_id_locked(fuse, nid);
+    if (node && get_node_path_locked(node, buf, bufsize) < 0) {
+        node = NULL;
+    }
+    return node;
+}
+
+static struct node *lookup_child_by_name_locked(struct node *node, const char *name)
 {
     for (node = node->child; node; node = node->next) {
+        /* use exact string comparison, nodes that differ by case
+         * must be considered distinct even if they refer to the same
+         * underlying file as otherwise operations such as "mv x x"
+         * will not work because the source and target nodes are the same. */
         if (!strcmp(name, node->name)) {
             return node;
         }
@@ -359,123 +407,43 @@
     return 0;
 }
 
-struct node *lookup_child_by_inode(struct node *node, __u64 nid)
+static struct node* acquire_or_create_child_locked(
+        struct fuse* fuse, struct node* parent,
+        const char* name, const char* actual_name)
 {
-    for (node = node->child; node; node = node->next) {
-        if (node->nid == nid) {
-            return node;
-        }
-    }
-    return 0;
-}
-
-static void dec_refcount(struct node *node) {
-    if (node->refcount > 0) {
-        node->refcount--;
-        TRACE("dec_refcount %p(%s) -> %d\n", node, node->name, node->refcount);
+    struct node* child = lookup_child_by_name_locked(parent, name);
+    if (child) {
+        acquire_node_locked(child);
     } else {
-        ERROR("Zero refcnt %p\n", node);
+        child = create_node_locked(fuse, parent, name, actual_name);
     }
- }
-
-static struct node *remove_child(struct node *parent, __u64 nid)
-{
-    struct node *prev = 0;
-    struct node *node;
-
-    for (node = parent->child; node; node = node->next) {
-        if (node->nid == nid) {
-            if (prev) {
-                prev->next = node->next;
-            } else {
-                parent->child = node->next;
-            }
-            node->next = 0;
-            node->parent = 0;
-            dec_refcount(parent);
-            return node;
-        }
-        prev = node;
-    }
-    return 0;
+    return child;
 }
 
-struct node *node_lookup(struct fuse *fuse, struct node *parent, const char *name,
-                         struct fuse_attr *attr)
+static void fuse_init(struct fuse *fuse, int fd, const char *source_path)
 {
-    int res;
-    struct stat s;
-    char *path, buffer[PATH_BUFFER_SIZE];
-    struct node *node;
+    pthread_mutex_init(&fuse->lock, NULL);
 
-    path = node_get_path(parent, buffer, name);
-        /* XXX error? */
+    fuse->fd = fd;
+    fuse->next_generation = 0;
 
-    res = lstat(path, &s);
-    if (res < 0)
-        return 0;
-    
-    node = lookup_child_by_name(parent, name);
-    if (!node) {
-        node = node_create(parent, name, fuse->next_node_id++, fuse->next_generation++);
-        if (!node)
-            return 0;
-        node->nid = ptr_to_id(node);
-        node->all = fuse->all;
-        fuse->all = node;
-    }
-
-    attr_from_stat(attr, &s);
-    attr->ino = node->nid;
-
-    return node;
+    memset(&fuse->root, 0, sizeof(fuse->root));
+    fuse->root.nid = FUSE_ROOT_ID; /* 1 */
+    fuse->root.refcount = 2;
+    fuse->root.namelen = strlen(source_path);
+    fuse->root.name = strdup(source_path);
 }
 
-void node_release(struct node *node)
-{
-    TRACE("RELEASE %p (%s) rc=%d\n", node, node->name, node->refcount);
-    dec_refcount(node);
-    if (node->refcount == 0) {
-        if (node->parent->child == node) {
-            node->parent->child = node->parent->child->next;
-        } else {
-            struct node *node2;
-
-            node2 = node->parent->child;
-            while (node2->next != node)
-                node2 = node2->next;
-            node2->next = node->next;            
-        }
-
-        TRACE("DESTROY %p (%s)\n", node, node->name);
-
-        node_release(node->parent);
-
-        node->parent = 0;
-        node->next = 0;
-
-            /* TODO: remove debugging - poison memory */
-        memset(node->name, 0xef, node->namelen);
-        free(node->name);
-        free(node->actual_name);
-        memset(node, 0xfc, sizeof(*node));
-        free(node);
-    }
-}
-
-void fuse_status(struct fuse *fuse, __u64 unique, int err)
+static void fuse_status(struct fuse *fuse, __u64 unique, int err)
 {
     struct fuse_out_header hdr;
     hdr.len = sizeof(hdr);
     hdr.error = err;
     hdr.unique = unique;
-    if (err) {
-//        ERROR("*** %d ***\n", err);
-    }
     write(fuse->fd, &hdr, sizeof(hdr));
 }
 
-void fuse_reply(struct fuse *fuse, __u64 unique, void *data, int len)
+static void fuse_reply(struct fuse *fuse, __u64 unique, void *data, int len)
 {
     struct fuse_out_header hdr;
     struct iovec vec[2];
@@ -496,530 +464,895 @@
     }
 }
 
-void lookup_entry(struct fuse *fuse, struct node *node,
-                  const char *name, __u64 unique)
+static int fuse_reply_entry(struct fuse* fuse, __u64 unique,
+        struct node* parent, const char* name, const char* actual_name,
+        const char* path)
 {
+    struct node* node;
     struct fuse_entry_out out;
-    
-    memset(&out, 0, sizeof(out));
+    struct stat s;
 
-    node = node_lookup(fuse, node, name, &out.attr);
-    if (!node) {
-        fuse_status(fuse, unique, -ENOENT);
-        return;
+    if (lstat(path, &s) < 0) {
+        return -errno;
     }
-    
-    node->refcount++;
-//    fprintf(stderr,"ACQUIRE %p (%s) rc=%d\n", node, node->name, node->refcount);
+
+    pthread_mutex_lock(&fuse->lock);
+    node = acquire_or_create_child_locked(fuse, parent, name, actual_name);
+    if (!node) {
+        pthread_mutex_unlock(&fuse->lock);
+        return -ENOMEM;
+    }
+    memset(&out, 0, sizeof(out));
+    attr_from_stat(&out.attr, &s, node->nid);
+    out.attr_valid = 10;
+    out.entry_valid = 10;
     out.nodeid = node->nid;
     out.generation = node->gen;
-    out.entry_valid = 10;
-    out.attr_valid = 10;
-    
+    pthread_mutex_unlock(&fuse->lock);
     fuse_reply(fuse, unique, &out, sizeof(out));
+    return NO_STATUS;
 }
 
-void handle_fuse_request(struct fuse *fuse, struct fuse_in_header *hdr, void *data, unsigned len)
+static int fuse_reply_attr(struct fuse* fuse, __u64 unique, __u64 nid,
+        const char* path)
 {
-    struct node *node;
+    struct fuse_attr_out out;
+    struct stat s;
 
-    if ((len < sizeof(*hdr)) || (hdr->len != len)) {
-        ERROR("malformed header\n");
-        return;
+    if (lstat(path, &s) < 0) {
+        return -errno;
     }
+    memset(&out, 0, sizeof(out));
+    attr_from_stat(&out.attr, &s, nid);
+    out.attr_valid = 10;
+    fuse_reply(fuse, unique, &out, sizeof(out));
+    return NO_STATUS;
+}
 
-    len -= hdr->len;
+static int handle_lookup(struct fuse* fuse, struct fuse_handler* handler,
+        const struct fuse_in_header *hdr, const char* name)
+{
+    struct node* parent_node;
+    char parent_path[PATH_MAX];
+    char child_path[PATH_MAX];
+    const char* actual_name;
 
-    if (hdr->nodeid) {
-        node = lookup_by_inode(fuse, hdr->nodeid);
-        if (!node) {
-            fuse_status(fuse, hdr->unique, -ENOENT);
-            return;
+    pthread_mutex_lock(&fuse->lock);
+    parent_node = lookup_node_and_path_by_id_locked(fuse, hdr->nodeid,
+            parent_path, sizeof(parent_path));
+    TRACE("[%d] LOOKUP %s @ %llx (%s)\n", handler->token, name, hdr->nodeid,
+        parent_node ? parent_node->name : "?");
+    pthread_mutex_unlock(&fuse->lock);
+
+    if (!parent_node || !(actual_name = find_file_within(parent_path, name,
+            child_path, sizeof(child_path), 1))) {
+        return -ENOENT;
+    }
+    return fuse_reply_entry(fuse, hdr->unique, parent_node, name, actual_name, child_path);
+}
+
+static int handle_forget(struct fuse* fuse, struct fuse_handler* handler,
+        const struct fuse_in_header *hdr, const struct fuse_forget_in *req)
+{
+    struct node* node;
+
+    pthread_mutex_lock(&fuse->lock);
+    node = lookup_node_by_id_locked(fuse, hdr->nodeid);
+    TRACE("[%d] FORGET #%lld @ %llx (%s)\n", handler->token, req->nlookup,
+            hdr->nodeid, node ? node->name : "?");
+    if (node) {
+        __u64 n = req->nlookup;
+        while (n--) {
+            release_node_locked(node);
         }
-    } else {
-        node = 0;
+    }
+    pthread_mutex_unlock(&fuse->lock);
+    return NO_STATUS; /* no reply */
+}
+
+static int handle_getattr(struct fuse* fuse, struct fuse_handler* handler,
+        const struct fuse_in_header *hdr, const struct fuse_getattr_in *req)
+{
+    struct node* node;
+    char path[PATH_MAX];
+
+    pthread_mutex_lock(&fuse->lock);
+    node = lookup_node_and_path_by_id_locked(fuse, hdr->nodeid, path, sizeof(path));
+    TRACE("[%d] GETATTR flags=%x fh=%llx @ %llx (%s)\n", handler->token,
+            req->getattr_flags, req->fh, hdr->nodeid, node ? node->name : "?");
+    pthread_mutex_unlock(&fuse->lock);
+
+    if (!node) {
+        return -ENOENT;
+    }
+    return fuse_reply_attr(fuse, hdr->unique, hdr->nodeid, path);
+}
+
+static int handle_setattr(struct fuse* fuse, struct fuse_handler* handler,
+        const struct fuse_in_header *hdr, const struct fuse_setattr_in *req)
+{
+    struct node* node;
+    char path[PATH_MAX];
+    struct timespec times[2];
+
+    pthread_mutex_lock(&fuse->lock);
+    node = lookup_node_and_path_by_id_locked(fuse, hdr->nodeid, path, sizeof(path));
+    TRACE("[%d] SETATTR fh=%llx valid=%x @ %llx (%s)\n", handler->token,
+            req->fh, req->valid, hdr->nodeid, node ? node->name : "?");
+    pthread_mutex_unlock(&fuse->lock);
+
+    if (!node) {
+        return -ENOENT;
     }
 
+    /* XXX: incomplete implementation on purpose.
+     * chmod/chown should NEVER be implemented.*/
+
+    if ((req->valid & FATTR_SIZE) && truncate(path, req->size) < 0) {
+        return -errno;
+    }
+
+    /* Handle changing atime and mtime.  If FATTR_ATIME_and FATTR_ATIME_NOW
+     * are both set, then set it to the current time.  Else, set it to the
+     * time specified in the request.  Same goes for mtime.  Use utimensat(2)
+     * as it allows ATIME and MTIME to be changed independently, and has
+     * nanosecond resolution which fuse also has.
+     */
+    if (req->valid & (FATTR_ATIME | FATTR_MTIME)) {
+        times[0].tv_nsec = UTIME_OMIT;
+        times[1].tv_nsec = UTIME_OMIT;
+        if (req->valid & FATTR_ATIME) {
+            if (req->valid & FATTR_ATIME_NOW) {
+              times[0].tv_nsec = UTIME_NOW;
+            } else {
+              times[0].tv_sec = req->atime;
+              times[0].tv_nsec = req->atimensec;
+            }
+        }
+        if (req->valid & FATTR_MTIME) {
+            if (req->valid & FATTR_MTIME_NOW) {
+              times[1].tv_nsec = UTIME_NOW;
+            } else {
+              times[1].tv_sec = req->mtime;
+              times[1].tv_nsec = req->mtimensec;
+            }
+        }
+        TRACE("[%d] Calling utimensat on %s with atime %ld, mtime=%ld\n",
+                handler->token, path, times[0].tv_sec, times[1].tv_sec);
+        if (utimensat(-1, path, times, 0) < 0) {
+            return -errno;
+        }
+    }
+    return fuse_reply_attr(fuse, hdr->unique, hdr->nodeid, path);
+}
+
+static int handle_mknod(struct fuse* fuse, struct fuse_handler* handler,
+        const struct fuse_in_header* hdr, const struct fuse_mknod_in* req, const char* name)
+{
+    struct node* parent_node;
+    char parent_path[PATH_MAX];
+    char child_path[PATH_MAX];
+    const char* actual_name;
+
+    pthread_mutex_lock(&fuse->lock);
+    parent_node = lookup_node_and_path_by_id_locked(fuse, hdr->nodeid,
+            parent_path, sizeof(parent_path));
+    TRACE("[%d] MKNOD %s 0%o @ %llx (%s)\n", handler->token,
+            name, req->mode, hdr->nodeid, parent_node ? parent_node->name : "?");
+    pthread_mutex_unlock(&fuse->lock);
+
+    if (!parent_node || !(actual_name = find_file_within(parent_path, name,
+            child_path, sizeof(child_path), 1))) {
+        return -ENOENT;
+    }
+    __u32 mode = (req->mode & (~0777)) | 0664;
+    if (mknod(child_path, mode, req->rdev) < 0) {
+        return -errno;
+    }
+    return fuse_reply_entry(fuse, hdr->unique, parent_node, name, actual_name, child_path);
+}
+
+static int handle_mkdir(struct fuse* fuse, struct fuse_handler* handler,
+        const struct fuse_in_header* hdr, const struct fuse_mkdir_in* req, const char* name)
+{
+    struct node* parent_node;
+    char parent_path[PATH_MAX];
+    char child_path[PATH_MAX];
+    const char* actual_name;
+
+    pthread_mutex_lock(&fuse->lock);
+    parent_node = lookup_node_and_path_by_id_locked(fuse, hdr->nodeid,
+            parent_path, sizeof(parent_path));
+    TRACE("[%d] MKDIR %s 0%o @ %llx (%s)\n", handler->token,
+            name, req->mode, hdr->nodeid, parent_node ? parent_node->name : "?");
+    pthread_mutex_unlock(&fuse->lock);
+
+    if (!parent_node || !(actual_name = find_file_within(parent_path, name,
+            child_path, sizeof(child_path), 1))) {
+        return -ENOENT;
+    }
+    __u32 mode = (req->mode & (~0777)) | 0775;
+    if (mkdir(child_path, mode) < 0) {
+        return -errno;
+    }
+    return fuse_reply_entry(fuse, hdr->unique, parent_node, name, actual_name, child_path);
+}
+
+static int handle_unlink(struct fuse* fuse, struct fuse_handler* handler,
+        const struct fuse_in_header* hdr, const char* name)
+{
+    struct node* parent_node;
+    char parent_path[PATH_MAX];
+    char child_path[PATH_MAX];
+
+    pthread_mutex_lock(&fuse->lock);
+    parent_node = lookup_node_and_path_by_id_locked(fuse, hdr->nodeid,
+            parent_path, sizeof(parent_path));
+    TRACE("[%d] UNLINK %s @ %llx (%s)\n", handler->token,
+            name, hdr->nodeid, parent_node ? parent_node->name : "?");
+    pthread_mutex_unlock(&fuse->lock);
+
+    if (!parent_node || !find_file_within(parent_path, name,
+            child_path, sizeof(child_path), 1)) {
+        return -ENOENT;
+    }
+    if (unlink(child_path) < 0) {
+        return -errno;
+    }
+    return 0;
+}
+
+static int handle_rmdir(struct fuse* fuse, struct fuse_handler* handler,
+        const struct fuse_in_header* hdr, const char* name)
+{
+    struct node* parent_node;
+    char parent_path[PATH_MAX];
+    char child_path[PATH_MAX];
+
+    pthread_mutex_lock(&fuse->lock);
+    parent_node = lookup_node_and_path_by_id_locked(fuse, hdr->nodeid,
+            parent_path, sizeof(parent_path));
+    TRACE("[%d] RMDIR %s @ %llx (%s)\n", handler->token,
+            name, hdr->nodeid, parent_node ? parent_node->name : "?");
+    pthread_mutex_unlock(&fuse->lock);
+
+    if (!parent_node || !find_file_within(parent_path, name,
+            child_path, sizeof(child_path), 1)) {
+        return -ENOENT;
+    }
+    if (rmdir(child_path) < 0) {
+        return -errno;
+    }
+    return 0;
+}
+
+static int handle_rename(struct fuse* fuse, struct fuse_handler* handler,
+        const struct fuse_in_header* hdr, const struct fuse_rename_in* req,
+        const char* old_name, const char* new_name)
+{
+    struct node* old_parent_node;
+    struct node* new_parent_node;
+    struct node* child_node;
+    char old_parent_path[PATH_MAX];
+    char new_parent_path[PATH_MAX];
+    char old_child_path[PATH_MAX];
+    char new_child_path[PATH_MAX];
+    const char* new_actual_name;
+    int res;
+
+    pthread_mutex_lock(&fuse->lock);
+    old_parent_node = lookup_node_and_path_by_id_locked(fuse, hdr->nodeid,
+            old_parent_path, sizeof(old_parent_path));
+    new_parent_node = lookup_node_and_path_by_id_locked(fuse, req->newdir,
+            new_parent_path, sizeof(new_parent_path));
+    TRACE("[%d] RENAME %s->%s @ %llx (%s) -> %llx (%s)\n", handler->token,
+            old_name, new_name,
+            hdr->nodeid, old_parent_node ? old_parent_node->name : "?",
+            req->newdir, new_parent_node ? new_parent_node->name : "?");
+    if (!old_parent_node || !new_parent_node) {
+        res = -ENOENT;
+        goto lookup_error;
+    }
+    child_node = lookup_child_by_name_locked(old_parent_node, old_name);
+    if (!child_node || get_node_path_locked(child_node,
+            old_child_path, sizeof(old_child_path)) < 0) {
+        res = -ENOENT;
+        goto lookup_error;
+    }
+    acquire_node_locked(child_node);
+    pthread_mutex_unlock(&fuse->lock);
+
+    /* Special case for renaming a file where destination is same path
+     * differing only by case.  In this case we don't want to look for a case
+     * insensitive match.  This allows commands like "mv foo FOO" to work as expected.
+     */
+    int search = old_parent_node != new_parent_node
+            || strcasecmp(old_name, new_name);
+    if (!(new_actual_name = find_file_within(new_parent_path, new_name,
+            new_child_path, sizeof(new_child_path), search))) {
+        res = -ENOENT;
+        goto io_error;
+    }
+
+    TRACE("[%d] RENAME %s->%s\n", handler->token, old_child_path, new_child_path);
+    res = rename(old_child_path, new_child_path);
+    if (res < 0) {
+        res = -errno;
+        goto io_error;
+    }
+
+    pthread_mutex_lock(&fuse->lock);
+    res = rename_node_locked(child_node, new_name, new_actual_name);
+    if (!res) {
+        remove_node_from_parent_locked(child_node);
+        add_node_to_parent_locked(child_node, new_parent_node);
+    }
+    goto done;
+
+io_error:
+    pthread_mutex_lock(&fuse->lock);
+done:
+    release_node_locked(child_node);
+lookup_error:
+    pthread_mutex_unlock(&fuse->lock);
+    return res;
+}
+
+static int handle_open(struct fuse* fuse, struct fuse_handler* handler,
+        const struct fuse_in_header* hdr, const struct fuse_open_in* req)
+{
+    struct node* node;
+    char path[PATH_MAX];
+    struct fuse_open_out out;
+    struct handle *h;
+
+    pthread_mutex_lock(&fuse->lock);
+    node = lookup_node_and_path_by_id_locked(fuse, hdr->nodeid, path, sizeof(path));
+    TRACE("[%d] OPEN 0%o @ %llx (%s)\n", handler->token,
+            req->flags, hdr->nodeid, node ? node->name : "?");
+    pthread_mutex_unlock(&fuse->lock);
+
+    if (!node) {
+        return -ENOENT;
+    }
+    h = malloc(sizeof(*h));
+    if (!h) {
+        return -ENOMEM;
+    }
+    TRACE("[%d] OPEN %s\n", handler->token, path);
+    h->fd = open(path, req->flags);
+    if (h->fd < 0) {
+        free(h);
+        return -errno;
+    }
+    out.fh = ptr_to_id(h);
+    out.open_flags = 0;
+    out.padding = 0;
+    fuse_reply(fuse, hdr->unique, &out, sizeof(out));
+    return NO_STATUS;
+}
+
+static int handle_read(struct fuse* fuse, struct fuse_handler* handler,
+        const struct fuse_in_header* hdr, const struct fuse_read_in* req)
+{
+    struct handle *h = id_to_ptr(req->fh);
+    __u64 unique = hdr->unique;
+    __u32 size = req->size;
+    __u64 offset = req->offset;
+    int res;
+
+    /* Don't access any other fields of hdr or req beyond this point, the read buffer
+     * overlaps the request buffer and will clobber data in the request.  This
+     * saves us 128KB per request handler thread at the cost of this scary comment. */
+
+    TRACE("[%d] READ %p(%d) %u@%llu\n", handler->token,
+            h, h->fd, size, offset);
+    if (size > sizeof(handler->read_buffer)) {
+        return -EINVAL;
+    }
+    res = pread64(h->fd, handler->read_buffer, size, offset);
+    if (res < 0) {
+        return -errno;
+    }
+    fuse_reply(fuse, unique, handler->read_buffer, res);
+    return NO_STATUS;
+}
+
+static int handle_write(struct fuse* fuse, struct fuse_handler* handler,
+        const struct fuse_in_header* hdr, const struct fuse_write_in* req,
+        const void* buffer)
+{
+    struct fuse_write_out out;
+    struct handle *h = id_to_ptr(req->fh);
+    int res;
+
+    TRACE("[%d] WRITE %p(%d) %u@%llu\n", handler->token,
+            h, h->fd, req->size, req->offset);
+    res = pwrite64(h->fd, buffer, req->size, req->offset);
+    if (res < 0) {
+        return -errno;
+    }
+    out.size = res;
+    fuse_reply(fuse, hdr->unique, &out, sizeof(out));
+    return NO_STATUS;
+}
+
+static int handle_statfs(struct fuse* fuse, struct fuse_handler* handler,
+        const struct fuse_in_header* hdr)
+{
+    char path[PATH_MAX];
+    struct statfs stat;
+    struct fuse_statfs_out out;
+    int res;
+
+    pthread_mutex_lock(&fuse->lock);
+    TRACE("[%d] STATFS\n", handler->token);
+    res = get_node_path_locked(&fuse->root, path, sizeof(path));
+    pthread_mutex_unlock(&fuse->lock);
+    if (res < 0) {
+        return -ENOENT;
+    }
+    if (statfs(fuse->root.name, &stat) < 0) {
+        return -errno;
+    }
+    memset(&out, 0, sizeof(out));
+    out.st.blocks = stat.f_blocks;
+    out.st.bfree = stat.f_bfree;
+    out.st.bavail = stat.f_bavail;
+    out.st.files = stat.f_files;
+    out.st.ffree = stat.f_ffree;
+    out.st.bsize = stat.f_bsize;
+    out.st.namelen = stat.f_namelen;
+    out.st.frsize = stat.f_frsize;
+    fuse_reply(fuse, hdr->unique, &out, sizeof(out));
+    return NO_STATUS;
+}
+
+static int handle_release(struct fuse* fuse, struct fuse_handler* handler,
+        const struct fuse_in_header* hdr, const struct fuse_release_in* req)
+{
+    struct handle *h = id_to_ptr(req->fh);
+
+    TRACE("[%d] RELEASE %p(%d)\n", handler->token, h, h->fd);
+    close(h->fd);
+    free(h);
+    return 0;
+}
+
+static int handle_fsync(struct fuse* fuse, struct fuse_handler* handler,
+        const struct fuse_in_header* hdr, const struct fuse_fsync_in* req)
+{
+    int is_data_sync = req->fsync_flags & 1;
+    struct handle *h = id_to_ptr(req->fh);
+    int res;
+
+    TRACE("[%d] FSYNC %p(%d) is_data_sync=%d\n", handler->token,
+            h, h->fd, is_data_sync);
+    res = is_data_sync ? fdatasync(h->fd) : fsync(h->fd);
+    if (res < 0) {
+        return -errno;
+    }
+    return 0;
+}
+
+static int handle_flush(struct fuse* fuse, struct fuse_handler* handler,
+        const struct fuse_in_header* hdr)
+{
+    TRACE("[%d] FLUSH\n", handler->token);
+    return 0;
+}
+
+static int handle_opendir(struct fuse* fuse, struct fuse_handler* handler,
+        const struct fuse_in_header* hdr, const struct fuse_open_in* req)
+{
+    struct node* node;
+    char path[PATH_MAX];
+    struct fuse_open_out out;
+    struct dirhandle *h;
+
+    pthread_mutex_lock(&fuse->lock);
+    node = lookup_node_and_path_by_id_locked(fuse, hdr->nodeid, path, sizeof(path));
+    TRACE("[%d] OPENDIR @ %llx (%s)\n", handler->token,
+            hdr->nodeid, node ? node->name : "?");
+    pthread_mutex_unlock(&fuse->lock);
+
+    if (!node) {
+        return -ENOENT;
+    }
+    h = malloc(sizeof(*h));
+    if (!h) {
+        return -ENOMEM;
+    }
+    TRACE("[%d] OPENDIR %s\n", handler->token, path);
+    h->d = opendir(path);
+    if (!h->d) {
+        free(h);
+        return -errno;
+    }
+    out.fh = ptr_to_id(h);
+    fuse_reply(fuse, hdr->unique, &out, sizeof(out));
+    return NO_STATUS;
+}
+
+static int handle_readdir(struct fuse* fuse, struct fuse_handler* handler,
+        const struct fuse_in_header* hdr, const struct fuse_read_in* req)
+{
+    char buffer[8192];
+    struct fuse_dirent *fde = (struct fuse_dirent*) buffer;
+    struct dirent *de;
+    struct dirhandle *h = id_to_ptr(req->fh);
+
+    TRACE("[%d] READDIR %p\n", handler->token, h);
+    if (req->offset == 0) {
+        /* rewinddir() might have been called above us, so rewind here too */
+        TRACE("[%d] calling rewinddir()\n", handler->token);
+        rewinddir(h->d);
+    }
+    de = readdir(h->d);
+    if (!de) {
+        return 0;
+    }
+    fde->ino = FUSE_UNKNOWN_INO;
+    /* increment the offset so we can detect when rewinddir() seeks back to the beginning */
+    fde->off = req->offset + 1;
+    fde->type = de->d_type;
+    fde->namelen = strlen(de->d_name);
+    memcpy(fde->name, de->d_name, fde->namelen + 1);
+    fuse_reply(fuse, hdr->unique, fde,
+            FUSE_DIRENT_ALIGN(sizeof(struct fuse_dirent) + fde->namelen));
+    return NO_STATUS;
+}
+
+static int handle_releasedir(struct fuse* fuse, struct fuse_handler* handler,
+        const struct fuse_in_header* hdr, const struct fuse_release_in* req)
+{
+    struct dirhandle *h = id_to_ptr(req->fh);
+
+    TRACE("[%d] RELEASEDIR %p\n", handler->token, h);
+    closedir(h->d);
+    free(h);
+    return 0;
+}
+
+static int handle_init(struct fuse* fuse, struct fuse_handler* handler,
+        const struct fuse_in_header* hdr, const struct fuse_init_in* req)
+{
+    struct fuse_init_out out;
+
+    TRACE("[%d] INIT ver=%d.%d maxread=%d flags=%x\n",
+            handler->token, req->major, req->minor, req->max_readahead, req->flags);
+    out.major = FUSE_KERNEL_VERSION;
+    out.minor = FUSE_KERNEL_MINOR_VERSION;
+    out.max_readahead = req->max_readahead;
+    out.flags = FUSE_ATOMIC_O_TRUNC | FUSE_BIG_WRITES;
+    out.max_background = 32;
+    out.congestion_threshold = 32;
+    out.max_write = MAX_WRITE;
+    fuse_reply(fuse, hdr->unique, &out, sizeof(out));
+    return NO_STATUS;
+}
+
+static int handle_fuse_request(struct fuse *fuse, struct fuse_handler* handler,
+        const struct fuse_in_header *hdr, const void *data, size_t data_len)
+{
     switch (hdr->opcode) {
     case FUSE_LOOKUP: { /* bytez[] -> entry_out */
-        TRACE("LOOKUP %llx %s\n", hdr->nodeid, (char*) data);
-        lookup_entry(fuse, node, (char*) data, hdr->unique);
-        return;
+        const char* name = data;
+        return handle_lookup(fuse, handler, hdr, name);
     }
+
     case FUSE_FORGET: {
-        struct fuse_forget_in *req = data;
-        TRACE("FORGET %llx (%s) #%lld\n", hdr->nodeid, node->name, req->nlookup);
-            /* no reply */
-        while (req->nlookup--)
-            node_release(node);
-        return;
+        const struct fuse_forget_in *req = data;
+        return handle_forget(fuse, handler, hdr, req);
     }
+
     case FUSE_GETATTR: { /* getattr_in -> attr_out */
-        struct fuse_getattr_in *req = data;
-        struct fuse_attr_out out;
-
-        TRACE("GETATTR flags=%x fh=%llx\n", req->getattr_flags, req->fh);
-
-        memset(&out, 0, sizeof(out));
-        node_get_attr(node, &out.attr);
-        out.attr_valid = 10;
-
-        fuse_reply(fuse, hdr->unique, &out, sizeof(out));
-        return;
+        const struct fuse_getattr_in *req = data;
+        return handle_getattr(fuse, handler, hdr, req);
     }
+
     case FUSE_SETATTR: { /* setattr_in -> attr_out */
-        struct fuse_setattr_in *req = data;
-        struct fuse_attr_out out;
-        char *path, buffer[PATH_BUFFER_SIZE];
-        int res = 0;
-        struct timespec times[2];
-
-        TRACE("SETATTR fh=%llx id=%llx valid=%x\n",
-              req->fh, hdr->nodeid, req->valid);
-
-        /* XXX: incomplete implementation on purpose.   chmod/chown
-         * should NEVER be implemented.*/
-
-        path = node_get_path(node, buffer, 0);
-        if (req->valid & FATTR_SIZE)
-            res = truncate(path, req->size);
-        if (res)
-            goto getout;
-
-        /* Handle changing atime and mtime.  If FATTR_ATIME_and FATTR_ATIME_NOW
-         * are both set, then set it to the current time.  Else, set it to the
-         * time specified in the request.  Same goes for mtime.  Use utimensat(2)
-         * as it allows ATIME and MTIME to be changed independently, and has
-         * nanosecond resolution which fuse also has.
-         */
-        if (req->valid & (FATTR_ATIME | FATTR_MTIME)) {
-            times[0].tv_nsec = UTIME_OMIT;
-            times[1].tv_nsec = UTIME_OMIT;
-            if (req->valid & FATTR_ATIME) {
-                if (req->valid & FATTR_ATIME_NOW) {
-                  times[0].tv_nsec = UTIME_NOW;
-                } else {
-                  times[0].tv_sec = req->atime;
-                  times[0].tv_nsec = req->atimensec;
-                }
-            }
-            if (req->valid & FATTR_MTIME) {
-                if (req->valid & FATTR_MTIME_NOW) {
-                  times[1].tv_nsec = UTIME_NOW;
-                } else {
-                  times[1].tv_sec = req->mtime;
-                  times[1].tv_nsec = req->mtimensec;
-                }
-            }
-            TRACE("Calling utimensat on %s with atime %ld, mtime=%ld\n", path, times[0].tv_sec, times[1].tv_sec);
-            res = utimensat(-1, path, times, 0);
-        }
-
-        getout:
-        memset(&out, 0, sizeof(out));
-        node_get_attr(node, &out.attr);
-        out.attr_valid = 10;
-
-        if (res)
-            fuse_status(fuse, hdr->unique, -errno);
-        else
-            fuse_reply(fuse, hdr->unique, &out, sizeof(out));
-        return;
+        const struct fuse_setattr_in *req = data;
+        return handle_setattr(fuse, handler, hdr, req);
     }
+
 //    case FUSE_READLINK:
 //    case FUSE_SYMLINK:
     case FUSE_MKNOD: { /* mknod_in, bytez[] -> entry_out */
-        struct fuse_mknod_in *req = data;
-        char *path, buffer[PATH_BUFFER_SIZE];
-        char *name = ((char*) data) + sizeof(*req);
-        int res;
-
-        TRACE("MKNOD %s @ %llx\n", name, hdr->nodeid);
-        path = node_get_path(node, buffer, name);
-
-        req->mode = (req->mode & (~0777)) | 0664;
-        res = mknod(path, req->mode, req->rdev); /* XXX perm?*/
-        if (res < 0) {
-            fuse_status(fuse, hdr->unique, -errno);
-        } else {
-            lookup_entry(fuse, node, name, hdr->unique);
-        }
-        return;
+        const struct fuse_mknod_in *req = data;
+        const char *name = ((const char*) data) + sizeof(*req);
+        return handle_mknod(fuse, handler, hdr, req, name);
     }
+
     case FUSE_MKDIR: { /* mkdir_in, bytez[] -> entry_out */
-        struct fuse_mkdir_in *req = data;
-        struct fuse_entry_out out;
-        char *path, buffer[PATH_BUFFER_SIZE];
-        char *name = ((char*) data) + sizeof(*req);
-        int res;
-
-        TRACE("MKDIR %s @ %llx 0%o\n", name, hdr->nodeid, req->mode);
-        path = node_get_path(node, buffer, name);
-
-        req->mode = (req->mode & (~0777)) | 0775;
-        res = mkdir(path, req->mode);
-        if (res < 0) {
-            fuse_status(fuse, hdr->unique, -errno);
-        } else {
-            lookup_entry(fuse, node, name, hdr->unique);
-        }
-        return;
+        const struct fuse_mkdir_in *req = data;
+        const char *name = ((const char*) data) + sizeof(*req);
+        return handle_mkdir(fuse, handler, hdr, req, name);
     }
+
     case FUSE_UNLINK: { /* bytez[] -> */
-        char *path, buffer[PATH_BUFFER_SIZE];
-        int res;
-        TRACE("UNLINK %s @ %llx\n", (char*) data, hdr->nodeid);
-        path = node_get_path(node, buffer, (char*) data);
-        res = unlink(path);
-        fuse_status(fuse, hdr->unique, res ? -errno : 0);
-        return;
+        const char* name = data;
+        return handle_unlink(fuse, handler, hdr, name);
     }
+
     case FUSE_RMDIR: { /* bytez[] -> */
-        char *path, buffer[PATH_BUFFER_SIZE];
-        int res;
-        TRACE("RMDIR %s @ %llx\n", (char*) data, hdr->nodeid);
-        path = node_get_path(node, buffer, (char*) data);
-        res = rmdir(path);
-        fuse_status(fuse, hdr->unique, res ? -errno : 0);
-        return;
+        const char* name = data;
+        return handle_rmdir(fuse, handler, hdr, name);
     }
+
     case FUSE_RENAME: { /* rename_in, oldname, newname ->  */
-        struct fuse_rename_in *req = data;
-        char *oldname = ((char*) data) + sizeof(*req);
-        char *newname = oldname + strlen(oldname) + 1;
-        char *oldpath, oldbuffer[PATH_BUFFER_SIZE];
-        char *newpath, newbuffer[PATH_BUFFER_SIZE];
-        struct node *target;
-        struct node *newparent;
-        int res;
-
-        TRACE("RENAME %s->%s @ %llx\n", oldname, newname, hdr->nodeid);
-
-        target = lookup_child_by_name(node, oldname);
-        if (!target) {
-            fuse_status(fuse, hdr->unique, -ENOENT);
-            return;
-        }
-        oldpath = node_get_path(node, oldbuffer, oldname);
-
-        newparent = lookup_by_inode(fuse, req->newdir);
-        if (!newparent) {
-            fuse_status(fuse, hdr->unique, -ENOENT);
-            return;
-        }
-        if (newparent == node) {
-            /* Special case for renaming a file where destination
-             * is same path differing only by case.
-             * In this case we don't want to look for a case insensitive match.
-             * This allows commands like "mv foo FOO" to work as expected.
-             */
-            newpath = do_node_get_path(newparent, newbuffer, newname, NO_CASE_SENSITIVE_MATCH);
-        } else {
-            newpath = node_get_path(newparent, newbuffer, newname);
-        }
-
-        if (!remove_child(node, target->nid)) {
-            ERROR("RENAME remove_child not found");
-            fuse_status(fuse, hdr->unique, -ENOENT);
-            return;
-        }
-        if (!rename_node(target, newname)) {
-            fuse_status(fuse, hdr->unique, -ENOMEM);
-            return;
-        }
-        add_node_to_parent(target, newparent);
-
-        res = rename(oldpath, newpath);
-        TRACE("RENAME result %d\n", res);
-
-        fuse_status(fuse, hdr->unique, res ? -errno : 0);
-        return;
+        const struct fuse_rename_in *req = data;
+        const char *old_name = ((const char*) data) + sizeof(*req);
+        const char *new_name = old_name + strlen(old_name) + 1;
+        return handle_rename(fuse, handler, hdr, req, old_name, new_name);
     }
-//    case FUSE_LINK:        
+
+//    case FUSE_LINK:
     case FUSE_OPEN: { /* open_in -> open_out */
-        struct fuse_open_in *req = data;
-        struct fuse_open_out out;
-        char *path, buffer[PATH_BUFFER_SIZE];
-        struct handle *h;
-
-        h = malloc(sizeof(*h));
-        if (!h) {
-            fuse_status(fuse, hdr->unique, -ENOMEM);
-            return;
-        }
-
-        path = node_get_path(node, buffer, 0);
-        TRACE("OPEN %llx '%s' 0%o fh=%p\n", hdr->nodeid, path, req->flags, h);
-        h->fd = open(path, req->flags);
-        if (h->fd < 0) {
-            ERROR("ERROR\n");
-            fuse_status(fuse, hdr->unique, -errno);
-            free(h);
-            return;
-        }
-        out.fh = ptr_to_id(h);
-        out.open_flags = 0;
-        out.padding = 0;
-        fuse_reply(fuse, hdr->unique, &out, sizeof(out));
-        return;
+        const struct fuse_open_in *req = data;
+        return handle_open(fuse, handler, hdr, req);
     }
+
     case FUSE_READ: { /* read_in -> byte[] */
-        char buffer[128 * 1024];
-        struct fuse_read_in *req = data;
-        struct handle *h = id_to_ptr(req->fh);
-        int res;
-        TRACE("READ %p(%d) %u@%llu\n", h, h->fd, req->size, req->offset);
-        if (req->size > sizeof(buffer)) {
-            fuse_status(fuse, hdr->unique, -EINVAL);
-            return;
-        }
-        res = pread64(h->fd, buffer, req->size, req->offset);
-        if (res < 0) {
-            fuse_status(fuse, hdr->unique, -errno);
-            return;
-        }
-        fuse_reply(fuse, hdr->unique, buffer, res);
-        return;
+        const struct fuse_read_in *req = data;
+        return handle_read(fuse, handler, hdr, req);
     }
+
     case FUSE_WRITE: { /* write_in, byte[write_in.size] -> write_out */
-        struct fuse_write_in *req = data;
-        struct fuse_write_out out;
-        struct handle *h = id_to_ptr(req->fh);
-        int res;
-        TRACE("WRITE %p(%d) %u@%llu\n", h, h->fd, req->size, req->offset);
-        res = pwrite64(h->fd, ((char*) data) + sizeof(*req), req->size, req->offset);
-        if (res < 0) {
-            fuse_status(fuse, hdr->unique, -errno);
-            return;
-        }
-        out.size = res;
-        fuse_reply(fuse, hdr->unique, &out, sizeof(out));
-        goto oops;
+        const struct fuse_write_in *req = data;
+        const void* buffer = (const __u8*)data + sizeof(*req);
+        return handle_write(fuse, handler, hdr, req, buffer);
     }
+
     case FUSE_STATFS: { /* getattr_in -> attr_out */
-        struct statfs stat;
-        struct fuse_statfs_out out;
-        int res;
-
-        TRACE("STATFS\n");
-
-        if (statfs(fuse->root.name, &stat)) {
-            fuse_status(fuse, hdr->unique, -errno);
-            return;
-        }
-
-        memset(&out, 0, sizeof(out));
-        out.st.blocks = stat.f_blocks;
-        out.st.bfree = stat.f_bfree;
-        out.st.bavail = stat.f_bavail;
-        out.st.files = stat.f_files;
-        out.st.ffree = stat.f_ffree;
-        out.st.bsize = stat.f_bsize;
-        out.st.namelen = stat.f_namelen;
-        out.st.frsize = stat.f_frsize;
-        fuse_reply(fuse, hdr->unique, &out, sizeof(out));
-        return;
+        return handle_statfs(fuse, handler, hdr);
     }
+
     case FUSE_RELEASE: { /* release_in -> */
-        struct fuse_release_in *req = data;
-        struct handle *h = id_to_ptr(req->fh);
-        TRACE("RELEASE %p(%d)\n", h, h->fd);
-        close(h->fd);
-        free(h);
-        fuse_status(fuse, hdr->unique, 0);
-        return;
+        const struct fuse_release_in *req = data;
+        return handle_release(fuse, handler, hdr, req);
     }
-//    case FUSE_FSYNC:
+
+    case FUSE_FSYNC: {
+        const struct fuse_fsync_in *req = data;
+        return handle_fsync(fuse, handler, hdr, req);
+    }
+
 //    case FUSE_SETXATTR:
 //    case FUSE_GETXATTR:
 //    case FUSE_LISTXATTR:
 //    case FUSE_REMOVEXATTR:
-    case FUSE_FLUSH:
-        fuse_status(fuse, hdr->unique, 0);
-        return;
+    case FUSE_FLUSH: {
+        return handle_flush(fuse, handler, hdr);
+    }
+
     case FUSE_OPENDIR: { /* open_in -> open_out */
-        struct fuse_open_in *req = data;
-        struct fuse_open_out out;
-        char *path, buffer[PATH_BUFFER_SIZE];
-        struct dirhandle *h;
-
-        h = malloc(sizeof(*h));
-        if (!h) {
-            fuse_status(fuse, hdr->unique, -ENOMEM);
-            return;
-        }
-
-        path = node_get_path(node, buffer, 0);
-        TRACE("OPENDIR %llx '%s'\n", hdr->nodeid, path);
-        h->d = opendir(path);
-        if (h->d == 0) {
-            ERROR("ERROR\n");
-            fuse_status(fuse, hdr->unique, -errno);
-            free(h);
-            return;
-        }
-        out.fh = ptr_to_id(h);
-        fuse_reply(fuse, hdr->unique, &out, sizeof(out));
-        return;
+        const struct fuse_open_in *req = data;
+        return handle_opendir(fuse, handler, hdr, req);
     }
+
     case FUSE_READDIR: {
-        struct fuse_read_in *req = data;
-        char buffer[8192];
-        struct fuse_dirent *fde = (struct fuse_dirent*) buffer;
-        struct dirent *de;
-        struct dirhandle *h = id_to_ptr(req->fh);
-        TRACE("READDIR %p\n", h);
-        if (req->offset == 0) {
-            /* rewinddir() might have been called above us, so rewind here too */
-            TRACE("calling rewinddir()\n");
-            rewinddir(h->d);
-        }
-        de = readdir(h->d);
-        if (!de) {
-            fuse_status(fuse, hdr->unique, 0);
-            return;
-        }
-        fde->ino = FUSE_UNKNOWN_INO;
-        /* increment the offset so we can detect when rewinddir() seeks back to the beginning */
-        fde->off = req->offset + 1;
-        fde->type = de->d_type;
-        fde->namelen = strlen(de->d_name);
-        memcpy(fde->name, de->d_name, fde->namelen + 1);
-        fuse_reply(fuse, hdr->unique, fde,
-                   FUSE_DIRENT_ALIGN(sizeof(struct fuse_dirent) + fde->namelen));
-        return;
+        const struct fuse_read_in *req = data;
+        return handle_readdir(fuse, handler, hdr, req);
     }
+
     case FUSE_RELEASEDIR: { /* release_in -> */
-        struct fuse_release_in *req = data;
-        struct dirhandle *h = id_to_ptr(req->fh);
-        TRACE("RELEASEDIR %p\n",h);
-        closedir(h->d);
-        free(h);
-        fuse_status(fuse, hdr->unique, 0);
-        return;
+        const struct fuse_release_in *req = data;
+        return handle_releasedir(fuse, handler, hdr, req);
     }
+
 //    case FUSE_FSYNCDIR:
     case FUSE_INIT: { /* init_in -> init_out */
-        struct fuse_init_in *req = data;
-        struct fuse_init_out out;
-        
-        TRACE("INIT ver=%d.%d maxread=%d flags=%x\n",
-                req->major, req->minor, req->max_readahead, req->flags);
-
-        out.major = FUSE_KERNEL_VERSION;
-        out.minor = FUSE_KERNEL_MINOR_VERSION;
-        out.max_readahead = req->max_readahead;
-        out.flags = FUSE_ATOMIC_O_TRUNC | FUSE_BIG_WRITES;
-        out.max_background = 32;
-        out.congestion_threshold = 32;
-        out.max_write = 256 * 1024;
-
-        fuse_reply(fuse, hdr->unique, &out, sizeof(out));
-        return;
+        const struct fuse_init_in *req = data;
+        return handle_init(fuse, handler, hdr, req);
     }
+
     default: {
-        struct fuse_out_header h;
-        ERROR("NOTIMPL op=%d uniq=%llx nid=%llx\n",
-                hdr->opcode, hdr->unique, hdr->nodeid);
-
-        oops:
-        h.len = sizeof(h);
-        h.error = -ENOSYS;
-        h.unique = hdr->unique;
-        write(fuse->fd, &h, sizeof(h));
-        break;
+        TRACE("[%d] NOTIMPL op=%d uniq=%llx nid=%llx\n",
+                handler->token, hdr->opcode, hdr->unique, hdr->nodeid);
+        return -ENOSYS;
     }
-    }   
+    }
 }
 
-void handle_fuse_requests(struct fuse *fuse)
+static void handle_fuse_requests(struct fuse_handler* handler)
 {
-    unsigned char req[256 * 1024 + 128];
-    int len;
-    
+    struct fuse* fuse = handler->fuse;
     for (;;) {
-        len = read(fuse->fd, req, sizeof(req));
+        ssize_t len = read(fuse->fd,
+                handler->request_buffer, sizeof(handler->request_buffer));
         if (len < 0) {
-            if (errno == EINTR)
-                continue;
-            ERROR("handle_fuse_requests: errno=%d\n", errno);
-            return;
+            if (errno != EINTR) {
+                ERROR("[%d] handle_fuse_requests: errno=%d\n", handler->token, errno);
+            }
+            continue;
         }
-        handle_fuse_request(fuse, (void*) req, (void*) (req + sizeof(struct fuse_in_header)), len);
+
+        if ((size_t)len < sizeof(struct fuse_in_header)) {
+            ERROR("[%d] request too short: len=%zu\n", handler->token, (size_t)len);
+            continue;
+        }
+
+        const struct fuse_in_header *hdr = (void*)handler->request_buffer;
+        if (hdr->len != (size_t)len) {
+            ERROR("[%d] malformed header: len=%zu, hdr->len=%u\n",
+                    handler->token, (size_t)len, hdr->len);
+            continue;
+        }
+
+        const void *data = handler->request_buffer + sizeof(struct fuse_in_header);
+        size_t data_len = len - sizeof(struct fuse_in_header);
+        __u64 unique = hdr->unique;
+        int res = handle_fuse_request(fuse, handler, hdr, data, data_len);
+
+        /* We do not access the request again after this point because the underlying
+         * buffer storage may have been reused while processing the request. */
+
+        if (res != NO_STATUS) {
+            if (res) {
+                TRACE("[%d] ERROR %d\n", handler->token, res);
+            }
+            fuse_status(fuse, unique, res);
+        }
     }
 }
 
+static void* start_handler(void* data)
+{
+    struct fuse_handler* handler = data;
+    handle_fuse_requests(handler);
+    return NULL;
+}
+
+static int ignite_fuse(struct fuse* fuse, int num_threads)
+{
+    struct fuse_handler* handlers;
+    int i;
+
+    handlers = malloc(num_threads * sizeof(struct fuse_handler));
+    if (!handlers) {
+        ERROR("cannot allocate storage for threads");
+        return -ENOMEM;
+    }
+
+    for (i = 0; i < num_threads; i++) {
+        handlers[i].fuse = fuse;
+        handlers[i].token = i;
+    }
+
+    for (i = 1; i < num_threads; i++) {
+        pthread_t thread;
+        int res = pthread_create(&thread, NULL, start_handler, &handlers[i]);
+        if (res) {
+            ERROR("failed to start thread #%d, error=%d", i, res);
+            goto quit;
+        }
+    }
+    handle_fuse_requests(&handlers[0]);
+    ERROR("terminated prematurely");
+
+    /* don't bother killing all of the other threads or freeing anything,
+     * should never get here anyhow */
+quit:
+    exit(1);
+}
+
 static int usage()
 {
-    ERROR("usage: sdcard <path> <uid> <gid>\n");
-    return -1;
+    ERROR("usage: sdcard [-t<threads>] <source_path> <dest_path> <uid> <gid>\n"
+            "    -t<threads>: specify number of threads to use, default -t%d\n"
+            "\n", DEFAULT_NUM_THREADS);
+    return 1;
+}
+
+static int run(const char* source_path, const char* dest_path, uid_t uid, gid_t gid,
+        int num_threads) {
+    int fd;
+    char opts[256];
+    int res;
+    struct fuse fuse;
+
+    /* cleanup from previous instance, if necessary */
+    umount2(dest_path, 2);
+
+    fd = open("/dev/fuse", O_RDWR);
+    if (fd < 0){
+        ERROR("cannot open fuse device (error %d)\n", errno);
+        return -1;
+    }
+
+    snprintf(opts, sizeof(opts),
+            "fd=%i,rootmode=40000,default_permissions,allow_other,user_id=%d,group_id=%d",
+            fd, uid, gid);
+
+    res = mount("/dev/fuse", dest_path, "fuse", MS_NOSUID | MS_NODEV, opts);
+    if (res < 0) {
+        ERROR("cannot mount fuse filesystem (error %d)\n", errno);
+        goto error;
+    }
+
+    res = setgid(gid);
+    if (res < 0) {
+        ERROR("cannot setgid (error %d)\n", errno);
+        goto error;
+    }
+
+    res = setuid(uid);
+    if (res < 0) {
+        ERROR("cannot setuid (error %d)\n", errno);
+        goto error;
+    }
+
+    fuse_init(&fuse, fd, source_path);
+
+    umask(0);
+    res = ignite_fuse(&fuse, num_threads);
+
+    /* we do not attempt to umount the file system here because we are no longer
+     * running as the root user */
+
+error:
+    close(fd);
+    return res;
 }
 
 int main(int argc, char **argv)
 {
-    struct fuse fuse;
-    char opts[256];
-    int fd;
     int res;
-    const char *path = NULL;
+    const char *source_path = NULL;
+    const char *dest_path = NULL;
+    uid_t uid = 0;
+    gid_t gid = 0;
+    int num_threads = DEFAULT_NUM_THREADS;
     int i;
-    unsigned int uid = 0;
-    unsigned int gid = 0;
 
-
-    if (argc != 4) {
-      return usage();
+    for (i = 1; i < argc; i++) {
+        char* arg = argv[i];
+        if (!strncmp(arg, "-t", 2))
+            num_threads = strtoul(arg + 2, 0, 10);
+        else if (!source_path)
+            source_path = arg;
+        else if (!dest_path)
+            dest_path = arg;
+        else if (!uid) {
+            char* endptr = NULL;
+            errno = 0;
+            uid = strtoul(arg, &endptr, 10);
+            if (*endptr != '\0' || errno != 0) {
+                ERROR("Invalid uid");
+                return usage();
+            }
+        } else if (!gid) {
+            char* endptr = NULL;
+            errno = 0;
+            gid = strtoul(arg, &endptr, 10);
+            if (*endptr != '\0' || errno != 0) {
+                ERROR("Invalid gid");
+                return usage();
+            }
+        } else {
+            ERROR("too many arguments\n");
+            return usage();
+        }
     }
 
-    path = argv[1];
-
-    char* endptr = NULL;
-    errno = 0;
-    uid = strtoul(argv[2], &endptr, 10);
-    if (*endptr != '\0' || errno != 0) {
-      ERROR("Invalid uid");
-      return usage();
+    if (!source_path) {
+        ERROR("no source path specified\n");
+        return usage();
+    }
+    if (!dest_path) {
+        ERROR("no dest path specified\n");
+        return usage();
+    }
+    if (!uid || !gid) {
+        ERROR("uid and gid must be nonzero\n");
+        return usage();
+    }
+    if (num_threads < 1) {
+        ERROR("number of threads must be at least 1\n");
+        return usage();
     }
 
-    endptr = NULL;
-    errno = 0;
-    gid = strtoul(argv[3], &endptr, 10);
-    if (*endptr != '\0' || errno != 0) {
-      ERROR("Invalid gid");
-      return usage();
-    }
-
-        /* cleanup from previous instance, if necessary */
-    umount2(MOUNT_POINT, 2);
-
-    fd = open("/dev/fuse", O_RDWR);
-    if (fd < 0){
-        ERROR("cannot open fuse device (%d)\n", errno);
-        return -1;
-    }
-
-    sprintf(opts, "fd=%i,rootmode=40000,default_permissions,allow_other,"
-            "user_id=%d,group_id=%d", fd, uid, gid);
-    
-    res = mount("/dev/fuse", MOUNT_POINT, "fuse", MS_NOSUID | MS_NODEV, opts);
-    if (res < 0) {
-        ERROR("cannot mount fuse filesystem (%d)\n", errno);
-        return -1;
-    }
-
-    if (setgid(gid) < 0) {
-        ERROR("cannot setgid!\n");
-        return -1;
-    }
-    if (setuid(uid) < 0) {
-        ERROR("cannot setuid!\n");
-        return -1;
-    }
-
-    fuse_init(&fuse, fd, path);
-
-    umask(0);
-    handle_fuse_requests(&fuse);
-    
-    return 0;
+    res = run(source_path, dest_path, uid, gid, num_threads);
+    return res < 0 ? 1 : 0;
 }
diff --git a/toolbox/Android.mk b/toolbox/Android.mk
index be95e7c..086ba0d 100644
--- a/toolbox/Android.mk
+++ b/toolbox/Android.mk
@@ -56,6 +56,7 @@
 	ionice \
 	touch \
 	lsof \
+	du \
 	md5
 
 ifeq ($(HAVE_SELINUX),true)
@@ -77,10 +78,17 @@
 TOOLS += r
 endif
 
-LOCAL_SRC_FILES:= \
+ALL_TOOLS = $(TOOLS)
+ALL_TOOLS += \
+	cp \
+	grep
+
+LOCAL_SRC_FILES := \
 	dynarray.c \
 	toolbox.c \
-	$(patsubst %,%.c,$(TOOLS))
+	$(patsubst %,%.c,$(TOOLS)) \
+	cp/cp.c cp/utils.c \
+	grep/grep.c grep/fastgrep.c grep/file.c grep/queue.c grep/util.c
 
 LOCAL_SHARED_LIBRARIES := libcutils libc libusbhost
 
@@ -94,7 +102,7 @@
 
 endif
 
-LOCAL_MODULE:= toolbox
+LOCAL_MODULE := toolbox
 
 # Including this will define $(intermediates).
 #
@@ -103,7 +111,7 @@
 $(LOCAL_PATH)/toolbox.c: $(intermediates)/tools.h
 
 TOOLS_H := $(intermediates)/tools.h
-$(TOOLS_H): PRIVATE_TOOLS := $(TOOLS)
+$(TOOLS_H): PRIVATE_TOOLS := $(ALL_TOOLS)
 $(TOOLS_H): PRIVATE_CUSTOM_TOOL = echo "/* file generated automatically */" > $@ ; for t in $(PRIVATE_TOOLS) ; do echo "TOOL($$t)" >> $@ ; done
 $(TOOLS_H): $(LOCAL_PATH)/Android.mk
 $(TOOLS_H):
@@ -111,7 +119,7 @@
 
 # Make #!/system/bin/toolbox launchers for each tool.
 #
-SYMLINKS := $(addprefix $(TARGET_OUT)/bin/,$(TOOLS))
+SYMLINKS := $(addprefix $(TARGET_OUT)/bin/,$(ALL_TOOLS))
 $(SYMLINKS): TOOLBOX_BINARY := $(LOCAL_MODULE)
 $(SYMLINKS): $(LOCAL_INSTALLED_MODULE) $(LOCAL_PATH)/Android.mk
 	@echo "Symlink: $@ -> $(TOOLBOX_BINARY)"
diff --git a/toolbox/cp/cp.c b/toolbox/cp/cp.c
new file mode 100644
index 0000000..bd3c70e
--- /dev/null
+++ b/toolbox/cp/cp.c
@@ -0,0 +1,552 @@
+/* $NetBSD: cp.c,v 1.58 2012/01/04 15:58:37 christos Exp $ */
+
+/*
+ * Copyright (c) 1988, 1993, 1994
+ *	The Regents of the University of California.  All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * David Hitz of Auspex Systems Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <sys/cdefs.h>
+#ifndef lint
+__COPYRIGHT(
+"@(#) Copyright (c) 1988, 1993, 1994\
+ The Regents of the University of California.  All rights reserved.");
+#endif /* not lint */
+
+#ifndef lint
+#if 0
+static char sccsid[] = "@(#)cp.c	8.5 (Berkeley) 4/29/95";
+#else
+__RCSID("$NetBSD: cp.c,v 1.58 2012/01/04 15:58:37 christos Exp $");
+#endif
+#endif /* not lint */
+
+/*
+ * Cp copies source files to target files.
+ *
+ * The global PATH_T structure "to" always contains the path to the
+ * current target file.  Since fts(3) does not change directories,
+ * this path can be either absolute or dot-relative.
+ *
+ * The basic algorithm is to initialize "to" and use fts(3) to traverse
+ * the file hierarchy rooted in the argument list.  A trivial case is the
+ * case of 'cp file1 file2'.  The more interesting case is the case of
+ * 'cp file1 file2 ... fileN dir' where the hierarchy is traversed and the
+ * path (relative to the root of the traversal) is appended to dir (stored
+ * in "to") to form the final target path.
+ */
+
+#include <sys/param.h>
+#include <sys/stat.h>
+
+#include <assert.h>
+#include <err.h>
+#include <errno.h>
+#include <fts.h>
+#include <locale.h>
+#include <signal.h>
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+#include <unistd.h>
+
+#include "extern.h"
+
+#define	STRIP_TRAILING_SLASH(p) {					\
+        while ((p).p_end > (p).p_path + 1 && (p).p_end[-1] == '/')	\
+                *--(p).p_end = '\0';					\
+}
+
+static char empty[] = "";
+PATH_T to = { .p_end = to.p_path, .target_end = empty  };
+
+uid_t myuid;
+int Hflag, Lflag, Rflag, Pflag, fflag, iflag, lflag, pflag, rflag, vflag, Nflag;
+mode_t myumask;
+sig_atomic_t pinfo;
+
+enum op { FILE_TO_FILE, FILE_TO_DIR, DIR_TO_DNE };
+
+static int copy(char *[], enum op, int);
+
+static void
+progress(int sig __unused)
+{
+
+	pinfo++;
+}
+
+int
+cp_main(int argc, char *argv[])
+{
+	struct stat to_stat, tmp_stat;
+	enum op type;
+	int ch, fts_options, r, have_trailing_slash;
+	char *target, **src;
+
+#ifndef ANDROID
+	setprogname(argv[0]);
+#endif
+	(void)setlocale(LC_ALL, "");
+
+	Hflag = Lflag = Pflag = Rflag = 0;
+	while ((ch = getopt(argc, argv, "HLNPRfailprv")) != -1)
+		switch (ch) {
+		case 'H':
+			Hflag = 1;
+			Lflag = Pflag = 0;
+			break;
+		case 'L':
+			Lflag = 1;
+			Hflag = Pflag = 0;
+			break;
+		case 'N':
+			Nflag = 1;
+			break;
+		case 'P':
+			Pflag = 1;
+			Hflag = Lflag = 0;
+			break;
+		case 'R':
+			Rflag = 1;
+			break;
+		case 'a':
+			Pflag = 1;
+			pflag = 1;
+			Rflag = 1;
+			Hflag = Lflag = 0;
+			break;
+		case 'f':
+			fflag = 1;
+			iflag = 0;
+			break;
+		case 'i':
+			iflag = isatty(fileno(stdin));
+			fflag = 0;
+			break;
+		case 'l':
+			lflag = 1;
+			break;
+		case 'p':
+			pflag = 1;
+			break;
+		case 'r':
+			rflag = 1;
+			break;
+		case 'v':
+			vflag = 1;
+			break;
+		case '?':
+		default:
+			cp_usage();
+			/* NOTREACHED */
+		}
+	argc -= optind;
+	argv += optind;
+
+	if (argc < 2)
+		cp_usage();
+
+	fts_options = FTS_NOCHDIR | FTS_PHYSICAL;
+	if (rflag) {
+		if (Rflag) {
+			errx(EXIT_FAILURE,
+		    "the -R and -r options may not be specified together.");
+			/* NOTREACHED */
+		}
+		if (Hflag || Lflag || Pflag) {
+			errx(EXIT_FAILURE,
+	"the -H, -L, and -P options may not be specified with the -r option.");
+			/* NOTREACHED */
+		}
+		fts_options &= ~FTS_PHYSICAL;
+		fts_options |= FTS_LOGICAL;
+	}
+
+	if (Rflag) {
+		if (Hflag)
+			fts_options |= FTS_COMFOLLOW;
+		if (Lflag) {
+			fts_options &= ~FTS_PHYSICAL;
+			fts_options |= FTS_LOGICAL;
+		}
+	} else if (!Pflag) {
+		fts_options &= ~FTS_PHYSICAL;
+		fts_options |= FTS_LOGICAL | FTS_COMFOLLOW;
+	}
+
+	myuid = getuid();
+
+	/* Copy the umask for explicit mode setting. */
+	myumask = umask(0);
+	(void)umask(myumask);
+
+	/* Save the target base in "to". */
+	target = argv[--argc];
+	if (strlcpy(to.p_path, target, sizeof(to.p_path)) >= sizeof(to.p_path))
+		errx(EXIT_FAILURE, "%s: name too long", target);
+	to.p_end = to.p_path + strlen(to.p_path);
+	have_trailing_slash = (to.p_end[-1] == '/');
+	if (have_trailing_slash)
+		STRIP_TRAILING_SLASH(to);
+	to.target_end = to.p_end;
+
+	/* Set end of argument list for fts(3). */
+	argv[argc] = NULL;
+
+#ifndef ANDROID
+	(void)signal(SIGINFO, progress);
+#endif
+
+	/*
+	 * Cp has two distinct cases:
+	 *
+	 * cp [-R] source target
+	 * cp [-R] source1 ... sourceN directory
+	 *
+	 * In both cases, source can be either a file or a directory.
+	 *
+	 * In (1), the target becomes a copy of the source. That is, if the
+	 * source is a file, the target will be a file, and likewise for
+	 * directories.
+	 *
+	 * In (2), the real target is not directory, but "directory/source".
+	 */
+	if (Pflag)
+		r = lstat(to.p_path, &to_stat);
+	else
+		r = stat(to.p_path, &to_stat);
+	if (r == -1 && errno != ENOENT) {
+		err(EXIT_FAILURE, "%s", to.p_path);
+		/* NOTREACHED */
+	}
+	if (r == -1 || !S_ISDIR(to_stat.st_mode)) {
+		/*
+		 * Case (1).  Target is not a directory.
+		 */
+		if (argc > 1)
+			cp_usage();
+		/*
+		 * Need to detect the case:
+		 *	cp -R dir foo
+		 * Where dir is a directory and foo does not exist, where
+		 * we want pathname concatenations turned on but not for
+		 * the initial mkdir().
+		 */
+		if (r == -1) {
+			if (rflag || (Rflag && (Lflag || Hflag)))
+				r = stat(*argv, &tmp_stat);
+			else
+				r = lstat(*argv, &tmp_stat);
+			if (r == -1) {
+				err(EXIT_FAILURE, "%s", *argv);
+				/* NOTREACHED */
+			}
+
+			if (S_ISDIR(tmp_stat.st_mode) && (Rflag || rflag))
+				type = DIR_TO_DNE;
+			else
+				type = FILE_TO_FILE;
+		} else
+			type = FILE_TO_FILE;
+
+		if (have_trailing_slash && type == FILE_TO_FILE) {
+			if (r == -1)
+				errx(1, "directory %s does not exist",
+				     to.p_path);
+			else
+				errx(1, "%s is not a directory", to.p_path);
+		}
+	} else {
+		/*
+		 * Case (2).  Target is a directory.
+		 */
+		type = FILE_TO_DIR;
+	}
+
+	/*
+	 * make "cp -rp src/ dst" behave like "cp -rp src dst" not
+	 * like "cp -rp src/. dst"
+	 */
+	for (src = argv; *src; src++) {
+		size_t len = strlen(*src);
+		while (len-- > 1 && (*src)[len] == '/')
+			(*src)[len] = '\0';
+	}
+
+	exit(copy(argv, type, fts_options));
+	/* NOTREACHED */
+}
+
+static int dnestack[MAXPATHLEN]; /* unlikely we'll have more nested dirs */
+static ssize_t dnesp;
+static void
+pushdne(int dne)
+{
+
+	dnestack[dnesp++] = dne;
+	assert(dnesp < MAXPATHLEN);
+}
+
+static int
+popdne(void)
+{
+	int rv;
+
+	rv = dnestack[--dnesp];
+	assert(dnesp >= 0);
+	return rv;
+}
+
+static int
+copy(char *argv[], enum op type, int fts_options)
+{
+	struct stat to_stat;
+	FTS *ftsp;
+	FTSENT *curr;
+	int base, dne, sval;
+	int this_failed, any_failed;
+	size_t nlen;
+	char *p, *target_mid;
+
+	base = 0;	/* XXX gcc -Wuninitialized (see comment below) */
+
+	if ((ftsp = fts_open(argv, fts_options, NULL)) == NULL)
+		err(EXIT_FAILURE, "%s", argv[0]);
+		/* NOTREACHED */
+	for (any_failed = 0; (curr = fts_read(ftsp)) != NULL;) {
+		this_failed = 0;
+		switch (curr->fts_info) {
+		case FTS_NS:
+		case FTS_DNR:
+		case FTS_ERR:
+			warnx("%s: %s", curr->fts_path,
+					strerror(curr->fts_errno));
+			this_failed = any_failed = 1;
+			continue;
+		case FTS_DC:			/* Warn, continue. */
+			warnx("%s: directory causes a cycle", curr->fts_path);
+			this_failed = any_failed = 1;
+			continue;
+		}
+
+		/*
+		 * If we are in case (2) or (3) above, we need to append the
+                 * source name to the target name.
+                 */
+		if (type != FILE_TO_FILE) {
+			if ((curr->fts_namelen +
+			    to.target_end - to.p_path + 1) > MAXPATHLEN) {
+				warnx("%s/%s: name too long (not copied)",
+						to.p_path, curr->fts_name);
+				this_failed = any_failed = 1;
+				continue;
+			}
+
+			/*
+			 * Need to remember the roots of traversals to create
+			 * correct pathnames.  If there's a directory being
+			 * copied to a non-existent directory, e.g.
+			 *	cp -R a/dir noexist
+			 * the resulting path name should be noexist/foo, not
+			 * noexist/dir/foo (where foo is a file in dir), which
+			 * is the case where the target exists.
+			 *
+			 * Also, check for "..".  This is for correct path
+			 * concatentation for paths ending in "..", e.g.
+			 *	cp -R .. /tmp
+			 * Paths ending in ".." are changed to ".".  This is
+			 * tricky, but seems the easiest way to fix the problem.
+			 *
+			 * XXX
+			 * Since the first level MUST be FTS_ROOTLEVEL, base
+			 * is always initialized.
+			 */
+			if (curr->fts_level == FTS_ROOTLEVEL) {
+				if (type != DIR_TO_DNE) {
+					p = strrchr(curr->fts_path, '/');
+					base = (p == NULL) ? 0 :
+					    (int)(p - curr->fts_path + 1);
+
+					if (!strcmp(&curr->fts_path[base],
+					    ".."))
+						base += 1;
+				} else
+					base = curr->fts_pathlen;
+			}
+
+			p = &curr->fts_path[base];
+			nlen = curr->fts_pathlen - base;
+			target_mid = to.target_end;
+			if (*p != '/' && target_mid[-1] != '/')
+				*target_mid++ = '/';
+			*target_mid = 0;
+
+			if (target_mid - to.p_path + nlen >= PATH_MAX) {
+				warnx("%s%s: name too long (not copied)",
+				    to.p_path, p);
+				this_failed = any_failed = 1;
+				continue;
+			}
+			(void)strncat(target_mid, p, nlen);
+			to.p_end = target_mid + nlen;
+			*to.p_end = 0;
+			STRIP_TRAILING_SLASH(to);
+		}
+
+		sval = Pflag ? lstat(to.p_path, &to_stat) : stat(to.p_path, &to_stat);
+		/* Not an error but need to remember it happened */
+		if (sval == -1)
+			dne = 1;
+		else {
+			if (to_stat.st_dev == curr->fts_statp->st_dev &&
+			    to_stat.st_ino == curr->fts_statp->st_ino) {
+				warnx("%s and %s are identical (not copied).",
+				    to.p_path, curr->fts_path);
+				this_failed = any_failed = 1;
+				if (S_ISDIR(curr->fts_statp->st_mode))
+					(void)fts_set(ftsp, curr, FTS_SKIP);
+				continue;
+			}
+			if (!S_ISDIR(curr->fts_statp->st_mode) &&
+			    S_ISDIR(to_stat.st_mode)) {
+		warnx("cannot overwrite directory %s with non-directory %s",
+				    to.p_path, curr->fts_path);
+				this_failed = any_failed = 1;
+				continue;
+			}
+			dne = 0;
+		}
+
+		switch (curr->fts_statp->st_mode & S_IFMT) {
+		case S_IFLNK:
+			/* Catch special case of a non dangling symlink */
+			if((fts_options & FTS_LOGICAL) ||
+			   ((fts_options & FTS_COMFOLLOW) && curr->fts_level == 0)) {
+				if (copy_file(curr, dne))
+					this_failed = any_failed = 1;
+			} else {
+				if (copy_link(curr, !dne))
+					this_failed = any_failed = 1;
+			}
+			break;
+		case S_IFDIR:
+			if (!Rflag && !rflag) {
+				if (curr->fts_info == FTS_D)
+					warnx("%s is a directory (not copied).",
+					    curr->fts_path);
+				(void)fts_set(ftsp, curr, FTS_SKIP);
+				this_failed = any_failed = 1;
+				break;
+			}
+
+                        /*
+                         * Directories get noticed twice:
+                         *  In the first pass, create it if needed.
+                         *  In the second pass, after the children have been copied, set the permissions.
+                         */
+			if (curr->fts_info == FTS_D) /* First pass */
+			{
+				/*
+				 * If the directory doesn't exist, create the new
+				 * one with the from file mode plus owner RWX bits,
+				 * modified by the umask.  Trade-off between being
+				 * able to write the directory (if from directory is
+				 * 555) and not causing a permissions race.  If the
+				 * umask blocks owner writes, we fail..
+				 */
+				pushdne(dne);
+				if (dne) {
+					if (mkdir(to.p_path,
+					    curr->fts_statp->st_mode | S_IRWXU) < 0)
+						err(EXIT_FAILURE, "%s",
+						    to.p_path);
+						/* NOTREACHED */
+				} else if (!S_ISDIR(to_stat.st_mode)) {
+					errno = ENOTDIR;
+					err(EXIT_FAILURE, "%s",
+						to.p_path);
+					/* NOTREACHED */
+				}
+			}
+			else if (curr->fts_info == FTS_DP) /* Second pass */
+			{
+	                        /*
+				 * If not -p and directory didn't exist, set it to be
+				 * the same as the from directory, umodified by the
+				 * umask; arguably wrong, but it's been that way
+				 * forever.
+				 */
+				if (pflag && setfile(curr->fts_statp, 0))
+					this_failed = any_failed = 1;
+				else if ((dne = popdne()))
+					(void)chmod(to.p_path,
+					    curr->fts_statp->st_mode);
+			}
+			else
+			{
+				warnx("directory %s encountered when not expected.",
+				    curr->fts_path);
+				this_failed = any_failed = 1;
+				break;
+			}
+
+			break;
+		case S_IFBLK:
+		case S_IFCHR:
+			if (Rflag) {
+				if (copy_special(curr->fts_statp, !dne))
+					this_failed = any_failed = 1;
+			} else
+				if (copy_file(curr, dne))
+					this_failed = any_failed = 1;
+			break;
+		case S_IFIFO:
+			if (Rflag) {
+				if (copy_fifo(curr->fts_statp, !dne))
+					this_failed = any_failed = 1;
+			} else
+				if (copy_file(curr, dne))
+					this_failed = any_failed = 1;
+			break;
+		default:
+			if (copy_file(curr, dne))
+				this_failed = any_failed = 1;
+			break;
+		}
+		if (vflag && !this_failed)
+			(void)printf("%s -> %s\n", curr->fts_path, to.p_path);
+	}
+	if (errno) {
+		err(EXIT_FAILURE, "fts_read");
+		/* NOTREACHED */
+	}
+	(void)fts_close(ftsp);
+	return (any_failed);
+}
diff --git a/toolbox/cp/extern.h b/toolbox/cp/extern.h
new file mode 100644
index 0000000..ffbadf7
--- /dev/null
+++ b/toolbox/cp/extern.h
@@ -0,0 +1,61 @@
+/* $NetBSD: extern.h,v 1.17 2012/01/04 15:58:37 christos Exp $ */
+
+/*-
+ * Copyright (c) 1991, 1993, 1994
+ *	The Regents of the University of California.  All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ *	@(#)extern.h	8.2 (Berkeley) 4/1/94
+ */
+
+#ifndef _EXTERN_H_
+#define _EXTERN_H_
+
+typedef struct {
+	char *p_end;			/* pointer to NULL at end of path */
+	char *target_end;		/* pointer to end of target base */
+	char p_path[MAXPATHLEN + 1];	/* pointer to the start of a path */
+} PATH_T;
+
+extern PATH_T to;
+extern uid_t myuid;
+extern int Rflag, rflag, Hflag, Lflag, Pflag, fflag, iflag, lflag, pflag, Nflag;
+extern mode_t myumask;
+extern sig_atomic_t pinfo;
+
+#include <sys/cdefs.h>
+
+__BEGIN_DECLS
+int	copy_fifo(struct stat *, int);
+int	copy_file(FTSENT *, int);
+int	copy_link(FTSENT *, int);
+int	copy_special(struct stat *, int);
+int	set_utimes(const char *, struct stat *);
+int	setfile(struct stat *, int);
+void cp_usage(void) __attribute__((__noreturn__));
+__END_DECLS
+
+#endif /* !_EXTERN_H_ */
diff --git a/toolbox/cp/utils.c b/toolbox/cp/utils.c
new file mode 100644
index 0000000..b682bbe
--- /dev/null
+++ b/toolbox/cp/utils.c
@@ -0,0 +1,446 @@
+/* $NetBSD: utils.c,v 1.41 2012/01/04 15:58:37 christos Exp $ */
+
+/*-
+ * Copyright (c) 1991, 1993, 1994
+ *	The Regents of the University of California.  All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <sys/cdefs.h>
+#ifndef lint
+#if 0
+static char sccsid[] = "@(#)utils.c	8.3 (Berkeley) 4/1/94";
+#else
+__RCSID("$NetBSD: utils.c,v 1.41 2012/01/04 15:58:37 christos Exp $");
+#endif
+#endif /* not lint */
+
+#include <sys/mman.h>
+#include <sys/param.h>
+#include <sys/stat.h>
+#include <sys/time.h>
+#ifndef ANDROID
+#include <sys/extattr.h>
+#endif
+
+#include <err.h>
+#include <errno.h>
+#include <fcntl.h>
+#include <fts.h>
+#include <stdbool.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+
+#include "extern.h"
+
+#ifdef ANDROID
+#define MAXBSIZE 65536
+#endif
+
+#define	MMAP_MAX_SIZE	(8 * 1048576)
+#define	MMAP_MAX_WRITE	(64 * 1024)
+
+int
+set_utimes(const char *file, struct stat *fs)
+{
+    static struct timeval tv[2];
+
+#ifdef ANDROID
+    tv[0].tv_sec = fs->st_atime;
+    tv[0].tv_usec = 0;
+    tv[1].tv_sec = fs->st_mtime;
+    tv[1].tv_usec = 0;
+
+    if (utimes(file, tv)) {
+        warn("utimes: %s", file);
+        return 1;
+    }
+#else
+    TIMESPEC_TO_TIMEVAL(&tv[0], &fs->st_atimespec);
+    TIMESPEC_TO_TIMEVAL(&tv[1], &fs->st_mtimespec);
+
+    if (lutimes(file, tv)) {
+    warn("lutimes: %s", file);
+    return (1);
+    }
+#endif
+    return (0);
+}
+
+struct finfo {
+	const char *from;
+	const char *to;
+	size_t size;
+};
+
+static void
+progress(const struct finfo *fi, size_t written)
+{
+	int pcent = (int)((100.0 * written) / fi->size);
+
+	pinfo = 0;
+	(void)fprintf(stderr, "%s => %s %zu/%zu bytes %d%% written\n",
+	    fi->from, fi->to, written, fi->size, pcent);
+}
+
+int
+copy_file(FTSENT *entp, int dne)
+{
+	static char buf[MAXBSIZE];
+	struct stat to_stat, *fs;
+	int ch, checkch, from_fd, rcount, rval, to_fd, tolnk, wcount;
+	char *p;
+	size_t ptotal = 0;
+
+	if ((from_fd = open(entp->fts_path, O_RDONLY, 0)) == -1) {
+		warn("%s", entp->fts_path);
+		return (1);
+	}
+
+	to_fd = -1;
+	fs = entp->fts_statp;
+	tolnk = ((Rflag && !(Lflag || Hflag)) || Pflag);
+
+	/*
+	 * If the file exists and we're interactive, verify with the user.
+	 * If the file DNE, set the mode to be the from file, minus setuid
+	 * bits, modified by the umask; arguably wrong, but it makes copying
+	 * executables work right and it's been that way forever.  (The
+	 * other choice is 666 or'ed with the execute bits on the from file
+	 * modified by the umask.)
+	 */
+	if (!dne) {
+		struct stat sb;
+		int sval;
+
+		if (iflag) {
+			(void)fprintf(stderr, "overwrite %s? ", to.p_path);
+			checkch = ch = getchar();
+			while (ch != '\n' && ch != EOF)
+				ch = getchar();
+			if (checkch != 'y' && checkch != 'Y') {
+				(void)close(from_fd);
+				return (0);
+			}
+		}
+
+		sval = tolnk ?
+			lstat(to.p_path, &sb) : stat(to.p_path, &sb);
+		if (sval == -1) {
+			warn("stat: %s", to.p_path);
+			(void)close(from_fd);
+			return (1);
+		}
+
+		if (!(tolnk && S_ISLNK(sb.st_mode)))
+			to_fd = open(to.p_path, O_WRONLY | O_TRUNC, 0);
+	} else
+		to_fd = open(to.p_path, O_WRONLY | O_TRUNC | O_CREAT,
+		    fs->st_mode & ~(S_ISUID | S_ISGID));
+
+	if (to_fd == -1 && (fflag || tolnk)) {
+		/*
+		 * attempt to remove existing destination file name and
+		 * create a new file
+		 */
+		(void)unlink(to.p_path);
+		to_fd = open(to.p_path, O_WRONLY | O_TRUNC | O_CREAT,
+			     fs->st_mode & ~(S_ISUID | S_ISGID));
+	}
+
+	if (to_fd == -1) {
+		warn("%s", to.p_path);
+		(void)close(from_fd);
+		return (1);
+	}
+
+	rval = 0;
+
+	/* if hard linking then simply close the open fds, link and return */
+	if (lflag) {
+		(void)close(from_fd);
+		(void)close(to_fd);
+		(void)unlink(to.p_path);
+		if (link(entp->fts_path, to.p_path)) {
+			warn("%s", to.p_path);
+			return (1);
+		}
+		return (0);
+	}
+	/* NOTREACHED */
+
+	/*
+	 * There's no reason to do anything other than close the file
+	 * now if it's empty, so let's not bother.
+	 */
+	if (fs->st_size > 0) {
+		struct finfo fi;
+
+		fi.from = entp->fts_path;
+		fi.to = to.p_path;
+		fi.size = (size_t)fs->st_size;
+
+		/*
+		 * Mmap and write if less than 8M (the limit is so
+		 * we don't totally trash memory on big files).
+		 * This is really a minor hack, but it wins some CPU back.
+		 */
+		bool use_read;
+
+		use_read = true;
+		if (fs->st_size <= MMAP_MAX_SIZE) {
+			size_t fsize = (size_t)fs->st_size;
+			p = mmap(NULL, fsize, PROT_READ, MAP_FILE|MAP_SHARED,
+			    from_fd, (off_t)0);
+			if (p != MAP_FAILED) {
+				size_t remainder;
+
+				use_read = false;
+
+				(void) madvise(p, (size_t)fs->st_size,
+				     MADV_SEQUENTIAL);
+
+				/*
+				 * Write out the data in small chunks to
+				 * avoid locking the output file for a
+				 * long time if the reading the data from
+				 * the source is slow.
+				 */
+				remainder = fsize;
+				do {
+					ssize_t chunk;
+
+					chunk = (remainder > MMAP_MAX_WRITE) ?
+					    MMAP_MAX_WRITE : remainder;
+					if (write(to_fd, &p[fsize - remainder],
+					    chunk) != chunk) {
+						warn("%s", to.p_path);
+						rval = 1;
+						break;
+					}
+					remainder -= chunk;
+					ptotal += chunk;
+					if (pinfo)
+						progress(&fi, ptotal);
+				} while (remainder > 0);
+
+				if (munmap(p, fsize) < 0) {
+					warn("%s", entp->fts_path);
+					rval = 1;
+				}
+			}
+		}
+
+		if (use_read) {
+			while ((rcount = read(from_fd, buf, MAXBSIZE)) > 0) {
+				wcount = write(to_fd, buf, (size_t)rcount);
+				if (rcount != wcount || wcount == -1) {
+					warn("%s", to.p_path);
+					rval = 1;
+					break;
+				}
+				ptotal += wcount;
+				if (pinfo)
+					progress(&fi, ptotal);
+			}
+			if (rcount < 0) {
+				warn("%s", entp->fts_path);
+				rval = 1;
+			}
+		}
+	}
+
+#ifndef ANDROID
+	if (pflag && (fcpxattr(from_fd, to_fd) != 0))
+		warn("%s: error copying extended attributes", to.p_path);
+#endif
+
+	(void)close(from_fd);
+
+	if (rval == 1) {
+		(void)close(to_fd);
+		return (1);
+	}
+
+	if (pflag && setfile(fs, to_fd))
+		rval = 1;
+	/*
+	 * If the source was setuid or setgid, lose the bits unless the
+	 * copy is owned by the same user and group.
+	 */
+#define	RETAINBITS \
+	(S_ISUID | S_ISGID | S_ISVTX | S_IRWXU | S_IRWXG | S_IRWXO)
+	if (!pflag && dne
+	    && fs->st_mode & (S_ISUID | S_ISGID) && fs->st_uid == myuid) {
+		if (fstat(to_fd, &to_stat)) {
+			warn("%s", to.p_path);
+			rval = 1;
+		} else if (fs->st_gid == to_stat.st_gid &&
+		    fchmod(to_fd, fs->st_mode & RETAINBITS & ~myumask)) {
+			warn("%s", to.p_path);
+			rval = 1;
+		}
+	}
+	if (close(to_fd)) {
+		warn("%s", to.p_path);
+		rval = 1;
+	}
+	/* set the mod/access times now after close of the fd */
+	if (pflag && set_utimes(to.p_path, fs)) {
+	    rval = 1;
+	}
+	return (rval);
+}
+
+int
+copy_link(FTSENT *p, int exists)
+{
+	int len;
+	char target[MAXPATHLEN];
+
+	if ((len = readlink(p->fts_path, target, sizeof(target)-1)) == -1) {
+		warn("readlink: %s", p->fts_path);
+		return (1);
+	}
+	target[len] = '\0';
+	if (exists && unlink(to.p_path)) {
+		warn("unlink: %s", to.p_path);
+		return (1);
+	}
+	if (symlink(target, to.p_path)) {
+		warn("symlink: %s", target);
+		return (1);
+	}
+	return (pflag ? setfile(p->fts_statp, 0) : 0);
+}
+
+int
+copy_fifo(struct stat *from_stat, int exists)
+{
+	if (exists && unlink(to.p_path)) {
+		warn("unlink: %s", to.p_path);
+		return (1);
+	}
+	if (mkfifo(to.p_path, from_stat->st_mode)) {
+		warn("mkfifo: %s", to.p_path);
+		return (1);
+	}
+	return (pflag ? setfile(from_stat, 0) : 0);
+}
+
+int
+copy_special(struct stat *from_stat, int exists)
+{
+	if (exists && unlink(to.p_path)) {
+		warn("unlink: %s", to.p_path);
+		return (1);
+	}
+	if (mknod(to.p_path, from_stat->st_mode, from_stat->st_rdev)) {
+		warn("mknod: %s", to.p_path);
+		return (1);
+	}
+	return (pflag ? setfile(from_stat, 0) : 0);
+}
+
+
+/*
+ * Function: setfile
+ *
+ * Purpose:
+ *   Set the owner/group/permissions for the "to" file to the information
+ *   in the stat structure.  If fd is zero, also call set_utimes() to set
+ *   the mod/access times.  If fd is non-zero, the caller must do a utimes
+ *   itself after close(fd).
+ */
+int
+setfile(struct stat *fs, int fd)
+{
+	int rval, islink;
+
+	rval = 0;
+	islink = S_ISLNK(fs->st_mode);
+	fs->st_mode &= S_ISUID | S_ISGID | S_IRWXU | S_IRWXG | S_IRWXO;
+
+	/*
+	 * Changing the ownership probably won't succeed, unless we're root
+	 * or POSIX_CHOWN_RESTRICTED is not set.  Set uid/gid before setting
+	 * the mode; current BSD behavior is to remove all setuid bits on
+	 * chown.  If chown fails, lose setuid/setgid bits.
+	 */
+	if (fd ? fchown(fd, fs->st_uid, fs->st_gid) :
+	    lchown(to.p_path, fs->st_uid, fs->st_gid)) {
+		if (errno != EPERM) {
+			warn("chown: %s", to.p_path);
+			rval = 1;
+		}
+		fs->st_mode &= ~(S_ISUID | S_ISGID);
+	}
+#ifdef ANDROID
+    if (fd ? fchmod(fd, fs->st_mode) : chmod(to.p_path, fs->st_mode)) {
+#else
+    if (fd ? fchmod(fd, fs->st_mode) : lchmod(to.p_path, fs->st_mode)) {
+#endif
+        warn("chmod: %s", to.p_path);
+        rval = 1;
+    }
+
+#ifndef ANDROID
+	if (!islink && !Nflag) {
+		unsigned long fflags = fs->st_flags;
+		/*
+		 * XXX
+		 * NFS doesn't support chflags; ignore errors unless
+		 * there's reason to believe we're losing bits.
+		 * (Note, this still won't be right if the server
+		 * supports flags and we were trying to *remove* flags
+		 * on a file that we copied, i.e., that we didn't create.)
+		 */
+		errno = 0;
+		if ((fd ? fchflags(fd, fflags) :
+		    chflags(to.p_path, fflags)) == -1)
+			if (errno != EOPNOTSUPP || fs->st_flags != 0) {
+				warn("chflags: %s", to.p_path);
+				rval = 1;
+			}
+	}
+#endif
+	/* if fd is non-zero, caller must call set_utimes() after close() */
+	if (fd == 0 && set_utimes(to.p_path, fs))
+	    rval = 1;
+	return (rval);
+}
+
+void
+cp_usage(void)
+{
+	(void)fprintf(stderr,
+	    "usage: cp [-R [-H | -L | -P]] [-f | -i] [-alNpv] src target\n"
+	    "       cp [-R [-H | -L | -P]] [-f | -i] [-alNpv] src1 ... srcN directory\n");
+	exit(1);
+	/* NOTREACHED */
+}
diff --git a/toolbox/dd.c b/toolbox/dd.c
index c6af3ea..350f1d2 100644
--- a/toolbox/dd.c
+++ b/toolbox/dd.c
@@ -64,7 +64,7 @@
 
 #include "dd.h"
 
-#define NO_CONV
+//#define NO_CONV
 
 //#include "extern.h"
 void block(void);
@@ -91,13 +91,11 @@
 extern u_int		files_cnt;
 extern int		progress;
 extern const u_char	*ctab;
-extern const u_char	a2e_32V[], a2e_POSIX[];
-extern const u_char	e2a_32V[], e2a_POSIX[];
-extern const u_char	a2ibm_32V[], a2ibm_POSIX[];
-extern u_char		casetab[];
 
 
+#define MIN(a, b) ((a) < (b) ? (a) : (b))
 #define MAX(a, b) ((a) > (b) ? (a) : (b))
+#define DEFFILEMODE (S_IRUSR | S_IWUSR)
 
 static void dd_close(void);
 static void dd_in(void);
@@ -188,14 +186,14 @@
 	} else {
 #define	OFLAGS \
     (O_CREAT | (ddflags & (C_SEEK | C_NOTRUNC) ? 0 : O_TRUNC))
-		out.fd = open(out.name, O_RDWR | OFLAGS /*, DEFFILEMODE */);
+		out.fd = open(out.name, O_RDWR | OFLAGS, DEFFILEMODE);
 		/*
 		 * May not have read access, so try again with write only.
 		 * Without read we may have a problem if output also does
 		 * not support seeks.
 		 */
 		if (out.fd < 0) {
-			out.fd = open(out.name, O_WRONLY | OFLAGS /*, DEFFILEMODE */);
+			out.fd = open(out.name, O_WRONLY | OFLAGS, DEFFILEMODE);
 			out.flags |= NOREAD;
 		}
 		if (out.fd < 0) {
@@ -243,42 +241,6 @@
 	if ((ddflags & (C_OF | C_SEEK | C_NOTRUNC)) == (C_OF | C_SEEK))
 		(void)ftruncate(out.fd, (off_t)out.offset * out.dbsz);
 
-	/*
-	 * If converting case at the same time as another conversion, build a
-	 * table that does both at once.  If just converting case, use the
-	 * built-in tables.
-	 */
-	if (ddflags & (C_LCASE|C_UCASE)) {
-#ifdef	NO_CONV
-		/* Should not get here, but just in case... */
-		fprintf(stderr, "case conv and -DNO_CONV\n");
-		exit(1);
-		/* NOTREACHED */
-#else	/* NO_CONV */
-		u_int cnt;
-
-		if (ddflags & C_ASCII || ddflags & C_EBCDIC) {
-			if (ddflags & C_LCASE) {
-				for (cnt = 0; cnt < 0377; ++cnt)
-					casetab[cnt] = tolower(ctab[cnt]);
-			} else {
-				for (cnt = 0; cnt < 0377; ++cnt)
-					casetab[cnt] = toupper(ctab[cnt]);
-			}
-		} else {
-			if (ddflags & C_LCASE) {
-				for (cnt = 0; cnt < 0377; ++cnt)
-					casetab[cnt] = tolower(cnt);
-			} else {
-				for (cnt = 0; cnt < 0377; ++cnt)
-					casetab[cnt] = toupper(cnt);
-			}
-		}
-
-		ctab = casetab;
-#endif	/* NO_CONV */
-	}
-
 	(void)gettimeofday(&st.start, NULL);	/* Statistics timestamp. */
 }
 
@@ -796,6 +758,9 @@
 void
 def_close(void)
 {
+	if (ddflags & C_FDATASYNC) {
+		fdatasync(out.fd);
+	}
 
 	/* Just update the count, everything is already in the buffer. */
 	if (in.dbcnt)
@@ -1301,21 +1266,14 @@
 	u_int set, noset;
 	const u_char *ctab;
 } clist[] = {
-	{ "ascii",	C_ASCII,	C_EBCDIC,	e2a_POSIX },
 	{ "block",	C_BLOCK,	C_UNBLOCK,	NULL },
-	{ "ebcdic",	C_EBCDIC,	C_ASCII,	a2e_POSIX },
-	{ "ibm",	C_EBCDIC,	C_ASCII,	a2ibm_POSIX },
-	{ "lcase",	C_LCASE,	C_UCASE,	NULL },
+	{ "fdatasync",	C_FDATASYNC,	0,		NULL },
 	{ "noerror",	C_NOERROR,	0,		NULL },
 	{ "notrunc",	C_NOTRUNC,	0,		NULL },
-	{ "oldascii",	C_ASCII,	C_EBCDIC,	e2a_32V },
-	{ "oldebcdic",	C_EBCDIC,	C_ASCII,	a2e_32V },
-	{ "oldibm",	C_EBCDIC,	C_ASCII,	a2ibm_32V },
 	{ "osync",	C_OSYNC,	C_BS,		NULL },
 	{ "sparse",	C_SPARSE,	0,		NULL },
 	{ "swab",	C_SWAB,		0,		NULL },
 	{ "sync",	C_SYNC,		0,		NULL },
-	{ "ucase",	C_UCASE,	C_LCASE,	NULL },
 	{ "unblock",	C_UNBLOCK,	C_BLOCK,	NULL },
 	/* If you add items to this table, be sure to add the
 	 * conversions to the C_BS check in the jcl routine above.
diff --git a/toolbox/dd.h b/toolbox/dd.h
index cca1024..89f2833 100644
--- a/toolbox/dd.h
+++ b/toolbox/dd.h
@@ -91,3 +91,4 @@
 #define	C_UNBLOCK	0x80000
 #define	C_OSYNC		0x100000
 #define	C_SPARSE	0x200000
+#define	C_FDATASYNC	0x400000
diff --git a/toolbox/du.c b/toolbox/du.c
new file mode 100644
index 0000000..06374a4
--- /dev/null
+++ b/toolbox/du.c
@@ -0,0 +1,322 @@
+/*	$NetBSD: du.c,v 1.33 2008/07/30 22:03:40 dsl Exp $	*/
+
+/*
+ * Copyright (c) 1989, 1993, 1994
+ *	The Regents of the University of California.  All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * Chris Newcomb.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <sys/cdefs.h>
+#ifndef lint
+__COPYRIGHT("@(#) Copyright (c) 1989, 1993, 1994\
+ The Regents of the University of California.  All rights reserved.");
+#endif /* not lint */
+
+#ifndef lint
+#if 0
+static char sccsid[] = "@(#)du.c	8.5 (Berkeley) 5/4/95";
+#else
+__RCSID("$NetBSD: du.c,v 1.33 2008/07/30 22:03:40 dsl Exp $");
+#endif
+#endif /* not lint */
+
+#include <sys/types.h>
+#include <sys/stat.h>
+
+#include <dirent.h>
+#include <err.h>
+#include <errno.h>
+#include <fts.h>
+#include <util.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+#include <limits.h>
+
+int	linkchk(dev_t, ino_t);
+void	prstat(const char *, int64_t);
+void	usage(void);
+
+long blocksize;
+
+#define howmany(x, y)   (((x)+((y)-1))/(y))
+
+int
+du_main(int argc, char *argv[])
+{
+	FTS *fts;
+	FTSENT *p;
+	int64_t totalblocks;
+	int ftsoptions, listfiles;
+	int depth;
+	int Hflag, Lflag, aflag, ch, cflag, dflag, gkmflag, nflag, rval, sflag;
+	const char *noargv[2];
+
+	Hflag = Lflag = aflag = cflag = dflag = gkmflag = sflag = 0;
+	totalblocks = 0;
+	ftsoptions = FTS_PHYSICAL;
+	depth = INT_MAX;
+	while ((ch = getopt(argc, argv, "HLPacd:ghkmnrsx")) != -1)
+		switch (ch) {
+		case 'H':
+			Hflag = 1;
+			Lflag = 0;
+			break;
+		case 'L':
+			Lflag = 1;
+			Hflag = 0;
+			break;
+		case 'P':
+			Hflag = Lflag = 0;
+			break;
+		case 'a':
+			aflag = 1;
+			break;
+		case 'c':
+			cflag = 1;
+			break;
+		case 'd':
+			dflag = 1;
+			depth = atoi(optarg);
+			if (depth < 0 || depth > SHRT_MAX) {
+				warnx("invalid argument to option d: %s", 
+					optarg);
+				usage();
+			}
+			break;
+		case 'g':
+			blocksize = 1024 * 1024 * 1024;
+			gkmflag = 1;
+			break;
+		case 'k':
+			blocksize = 1024;
+			gkmflag = 1;
+			break;
+		case 'm':
+			blocksize = 1024 * 1024;
+			gkmflag = 1;
+			break; 
+		case 'r':
+			break;
+		case 's':
+			sflag = 1;
+			break;
+		case 'x':
+			ftsoptions |= FTS_XDEV;
+			break;
+		case '?':
+		default:
+			usage();
+		}
+	argc -= optind;
+	argv += optind;
+
+	/*
+	 * XXX
+	 * Because of the way that fts(3) works, logical walks will not count
+	 * the blocks actually used by symbolic links.  We rationalize this by
+	 * noting that users computing logical sizes are likely to do logical
+	 * copies, so not counting the links is correct.  The real reason is
+	 * that we'd have to re-implement the kernel's symbolic link traversing
+	 * algorithm to get this right.  If, for example, you have relative
+	 * symbolic links referencing other relative symbolic links, it gets
+	 * very nasty, very fast.  The bottom line is that it's documented in
+	 * the man page, so it's a feature.
+	 */
+	if (Hflag)
+		ftsoptions |= FTS_COMFOLLOW;
+	if (Lflag) {
+		ftsoptions &= ~FTS_PHYSICAL;
+		ftsoptions |= FTS_LOGICAL;
+	}
+
+	listfiles = 0;
+	if (aflag) {
+		if (sflag || dflag)
+			usage();
+		listfiles = 1;
+	} else if (sflag) {
+		if (dflag)
+			usage();
+		depth = 0;
+	}
+
+	if (!*argv) {
+		noargv[0] = ".";
+		noargv[1] = NULL;
+		argv = __UNCONST(noargv);
+	}
+
+	if (!gkmflag)
+		blocksize = 512;
+	blocksize /= 512;
+
+	if ((fts = fts_open(argv, ftsoptions, NULL)) == NULL)
+		err(1, "fts_open `%s'", *argv);
+
+	for (rval = 0; (p = fts_read(fts)) != NULL;) {
+		switch (p->fts_info) {
+		case FTS_D:			/* Ignore. */
+			break;
+		case FTS_DP:
+			p->fts_parent->fts_number += 
+			    p->fts_number += p->fts_statp->st_blocks;
+			if (cflag)
+				totalblocks += p->fts_statp->st_blocks;
+			/*
+			 * If listing each directory, or not listing files
+			 * or directories and this is post-order of the
+			 * root of a traversal, display the total.
+			 */
+			if (p->fts_level <= depth
+			    || (!listfiles && !p->fts_level))
+				prstat(p->fts_path, p->fts_number);
+			break;
+		case FTS_DC:			/* Ignore. */
+			break;
+		case FTS_DNR:			/* Warn, continue. */
+		case FTS_ERR:
+		case FTS_NS:
+			warnx("%s: %s", p->fts_path, strerror(p->fts_errno));
+			rval = 1;
+			break;
+		default:
+			if (p->fts_statp->st_nlink > 1 &&
+			    linkchk(p->fts_statp->st_dev, p->fts_statp->st_ino))
+				break;
+			/*
+			 * If listing each file, or a non-directory file was
+			 * the root of a traversal, display the total.
+			 */
+			if (listfiles || !p->fts_level)
+				prstat(p->fts_path, p->fts_statp->st_blocks);
+			p->fts_parent->fts_number += p->fts_statp->st_blocks;
+			if (cflag)
+				totalblocks += p->fts_statp->st_blocks;
+		}
+	}
+	if (errno)
+		err(1, "fts_read");
+	if (cflag)
+		prstat("total", totalblocks);
+	exit(rval);
+}
+
+void
+prstat(const char *fname, int64_t blocks)
+{
+	(void)printf("%lld\t%s\n",
+	    (long long)howmany(blocks, (int64_t)blocksize),
+	    fname);
+}
+
+int
+linkchk(dev_t dev, ino_t ino)
+{
+	static struct entry {
+		dev_t	dev;
+		ino_t	ino;
+	} *htable;
+	static int htshift;  /* log(allocated size) */
+	static int htmask;   /* allocated size - 1 */
+	static int htused;   /* 2*number of insertions */
+	static int sawzero;  /* Whether zero is in table or not */
+	int h, h2;
+	uint64_t tmp;
+	/* this constant is (1<<64)/((1+sqrt(5))/2)
+	 * aka (word size)/(golden ratio)
+	 */
+	const uint64_t HTCONST = 11400714819323198485ULL;
+	const int HTBITS = CHAR_BIT * sizeof(tmp);
+
+	/* Never store zero in hashtable */
+	if (dev == 0 && ino == 0) {
+		h = sawzero;
+		sawzero = 1;
+		return h;
+	}
+
+	/* Extend hash table if necessary, keep load under 0.5 */
+	if (htused<<1 >= htmask) {
+		struct entry *ohtable;
+
+		if (!htable)
+			htshift = 10;   /* starting hashtable size */
+		else
+			htshift++;   /* exponential hashtable growth */
+
+		htmask  = (1 << htshift) - 1;
+		htused = 0;
+
+		ohtable = htable;
+		htable = calloc(htmask+1, sizeof(*htable));
+		if (!htable)
+			err(1, "calloc");
+
+		/* populate newly allocated hashtable */
+		if (ohtable) {
+			int i;
+			for (i = 0; i <= htmask>>1; i++)
+				if (ohtable[i].ino || ohtable[i].dev)
+					linkchk(ohtable[i].dev, ohtable[i].ino);
+			free(ohtable);
+		}
+	}
+
+	/* multiplicative hashing */
+	tmp = dev;
+	tmp <<= HTBITS>>1;
+	tmp |=  ino;
+	tmp *= HTCONST;
+	h  = tmp >> (HTBITS - htshift);
+	h2 = 1 | ( tmp >> (HTBITS - (htshift<<1) - 1)); /* must be odd */
+
+	/* open address hashtable search with double hash probing */
+	while (htable[h].ino || htable[h].dev) {
+		if ((htable[h].ino == ino) && (htable[h].dev == dev))
+			return 1;
+		h = (h + h2) & htmask;
+	}
+
+	/* Insert the current entry into hashtable */
+	htable[h].dev = dev;
+	htable[h].ino = ino;
+	htused++;
+	return 0;
+}
+
+void
+usage(void)
+{
+
+	(void)fprintf(stderr,
+		"usage: du [-H | -L | -P] [-a | -d depth | -s] [-cgkmrx] [file ...]\n");
+	exit(1);
+}
diff --git a/toolbox/grep/fastgrep.c b/toolbox/grep/fastgrep.c
new file mode 100644
index 0000000..2fcd864
--- /dev/null
+++ b/toolbox/grep/fastgrep.c
@@ -0,0 +1,336 @@
+/*	$OpenBSD: util.c,v 1.36 2007/10/02 17:59:18 otto Exp $	*/
+/*	$FreeBSD: head/usr.bin/grep/fastgrep.c 211496 2010-08-19 09:28:59Z des $ */
+
+/*-
+ * Copyright (c) 1999 James Howard and Dag-Erling Coïdan Smørgrav
+ * Copyright (C) 2008 Gabor Kovesdan <gabor@FreeBSD.org>
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+/*
+ * XXX: This file is a speed up for grep to cover the defects of the
+ * regex library.  These optimizations should practically be implemented
+ * there keeping this code clean.  This is a future TODO, but for the
+ * meantime, we need to use this workaround.
+ */
+
+#if HAVE_NBTOOL_CONFIG_H
+#include "nbtool_config.h"
+#endif
+
+#include <sys/cdefs.h>
+__RCSID("$NetBSD: fastgrep.c,v 1.5 2011/04/18 03:27:40 joerg Exp $");
+
+#include <limits.h>
+#include <stdbool.h>
+#include <stdlib.h>
+#include <string.h>
+#include <wchar.h>
+#include <wctype.h>
+
+#include "grep.h"
+
+static inline int	grep_cmp(const unsigned char *, const unsigned char *, size_t);
+static inline void	grep_revstr(unsigned char *, int);
+
+void
+fgrepcomp(fastgrep_t *fg, const char *pat)
+{
+	unsigned int i;
+
+	/* Initialize. */
+	fg->len = strlen(pat);
+	fg->bol = false;
+	fg->eol = false;
+	fg->reversed = false;
+
+	fg->pattern = (unsigned char *)grep_strdup(pat);
+
+	/* Preprocess pattern. */
+	for (i = 0; i <= UCHAR_MAX; i++)
+		fg->qsBc[i] = fg->len;
+	for (i = 1; i < fg->len; i++)
+		fg->qsBc[fg->pattern[i]] = fg->len - i;
+}
+
+/*
+ * Returns: -1 on failure, 0 on success
+ */
+int
+fastcomp(fastgrep_t *fg, const char *pat)
+{
+	unsigned int i;
+	int firstHalfDot = -1;
+	int firstLastHalfDot = -1;
+	int hasDot = 0;
+	int lastHalfDot = 0;
+	int shiftPatternLen;
+
+	/* Initialize. */
+	fg->len = strlen(pat);
+	fg->bol = false;
+	fg->eol = false;
+	fg->reversed = false;
+	fg->word = wflag;
+
+	/* Remove end-of-line character ('$'). */
+	if (fg->len > 0 && pat[fg->len - 1] == '$') {
+		fg->eol = true;
+		fg->len--;
+	}
+
+	/* Remove beginning-of-line character ('^'). */
+	if (pat[0] == '^') {
+		fg->bol = true;
+		fg->len--;
+		pat++;
+	}
+
+	if (fg->len >= 14 &&
+	    memcmp(pat, "[[:<:]]", 7) == 0 &&
+	    memcmp(pat + fg->len - 7, "[[:>:]]", 7) == 0) {
+		fg->len -= 14;
+		pat += 7;
+		/* Word boundary is handled separately in util.c */
+		fg->word = true;
+	}
+
+	/*
+	 * pat has been adjusted earlier to not include '^', '$' or
+	 * the word match character classes at the beginning and ending
+	 * of the string respectively.
+	 */
+	fg->pattern = grep_malloc(fg->len + 1);
+	memcpy(fg->pattern, pat, fg->len);
+	fg->pattern[fg->len] = '\0';
+
+	/* Look for ways to cheat...er...avoid the full regex engine. */
+	for (i = 0; i < fg->len; i++) {
+		/* Can still cheat? */
+		if (fg->pattern[i] == '.') {
+			hasDot = i;
+			if (i < fg->len / 2) {
+				if (firstHalfDot < 0)
+					/* Closest dot to the beginning */
+					firstHalfDot = i;
+			} else {
+				/* Closest dot to the end of the pattern. */
+				lastHalfDot = i;
+				if (firstLastHalfDot < 0)
+					firstLastHalfDot = i;
+			}
+		} else {
+			/* Free memory and let others know this is empty. */
+			free(fg->pattern);
+			fg->pattern = NULL;
+			return (-1);
+		}
+	}
+
+	/*
+	 * Determine if a reverse search would be faster based on the placement
+	 * of the dots.
+	 */
+	if ((!(lflag || cflag)) && ((!(fg->bol || fg->eol)) &&
+	    ((lastHalfDot) && ((firstHalfDot < 0) ||
+	    ((fg->len - (lastHalfDot + 1)) < (size_t)firstHalfDot)))) &&
+	    !oflag && !color) {
+		fg->reversed = true;
+		hasDot = fg->len - (firstHalfDot < 0 ?
+		    firstLastHalfDot : firstHalfDot) - 1;
+		grep_revstr(fg->pattern, fg->len);
+	}
+
+	/*
+	 * Normal Quick Search would require a shift based on the position the
+	 * next character after the comparison is within the pattern.  With
+	 * wildcards, the position of the last dot effects the maximum shift
+	 * distance.
+	 * The closer to the end the wild card is the slower the search.  A
+	 * reverse version of this algorithm would be useful for wildcards near
+	 * the end of the string.
+	 *
+	 * Examples:
+	 * Pattern	Max shift
+	 * -------	---------
+	 * this		5
+	 * .his		4
+	 * t.is		3
+	 * th.s		2
+	 * thi.		1
+	 */
+
+	/* Adjust the shift based on location of the last dot ('.'). */
+	shiftPatternLen = fg->len - hasDot;
+
+	/* Preprocess pattern. */
+	for (i = 0; i <= (signed)UCHAR_MAX; i++)
+		fg->qsBc[i] = shiftPatternLen;
+	for (i = hasDot + 1; i < fg->len; i++) {
+		fg->qsBc[fg->pattern[i]] = fg->len - i;
+	}
+
+	/*
+	 * Put pattern back to normal after pre-processing to allow for easy
+	 * comparisons later.
+	 */
+	if (fg->reversed)
+		grep_revstr(fg->pattern, fg->len);
+
+	return (0);
+}
+
+int
+grep_search(fastgrep_t *fg, const unsigned char *data, size_t len, regmatch_t *pmatch)
+{
+	unsigned int j;
+	int ret = REG_NOMATCH;
+
+	if (pmatch->rm_so == (ssize_t)len)
+		return (ret);
+
+	if (fg->bol && pmatch->rm_so != 0) {
+		pmatch->rm_so = len;
+		pmatch->rm_eo = len;
+		return (ret);
+	}
+
+	/* No point in going farther if we do not have enough data. */
+	if (len < fg->len)
+		return (ret);
+
+	/* Only try once at the beginning or ending of the line. */
+	if (fg->bol || fg->eol) {
+		/* Simple text comparison. */
+		/* Verify data is >= pattern length before searching on it. */
+		if (len >= fg->len) {
+			/* Determine where in data to start search at. */
+			j = fg->eol ? len - fg->len : 0;
+			if (!((fg->bol && fg->eol) && (len != fg->len)))
+				if (grep_cmp(fg->pattern, data + j,
+				    fg->len) == -1) {
+					pmatch->rm_so = j;
+					pmatch->rm_eo = j + fg->len;
+						ret = 0;
+				}
+		}
+	} else if (fg->reversed) {
+		/* Quick Search algorithm. */
+		j = len;
+		do {
+			if (grep_cmp(fg->pattern, data + j - fg->len,
+				fg->len) == -1) {
+				pmatch->rm_so = j - fg->len;
+				pmatch->rm_eo = j;
+				ret = 0;
+				break;
+			}
+			/* Shift if within bounds, otherwise, we are done. */
+			if (j == fg->len)
+				break;
+			j -= fg->qsBc[data[j - fg->len - 1]];
+		} while (j >= fg->len);
+	} else {
+		/* Quick Search algorithm. */
+		j = pmatch->rm_so;
+		do {
+			if (grep_cmp(fg->pattern, data + j, fg->len) == -1) {
+				pmatch->rm_so = j;
+				pmatch->rm_eo = j + fg->len;
+				ret = 0;
+				break;
+			}
+
+			/* Shift if within bounds, otherwise, we are done. */
+			if (j + fg->len == len)
+				break;
+			else
+				j += fg->qsBc[data[j + fg->len]];
+		} while (j <= (len - fg->len));
+	}
+
+	return (ret);
+}
+
+/*
+ * Returns:	i >= 0 on failure (position that it failed)
+ *		-1 on success
+ */
+static inline int
+grep_cmp(const unsigned char *pat, const unsigned char *data, size_t len)
+{
+	size_t size;
+	wchar_t *wdata, *wpat;
+	unsigned int i;
+
+	if (iflag) {
+		if ((size = mbstowcs(NULL, (const char *)data, 0)) ==
+		    ((size_t) - 1))
+			return (-1);
+
+		wdata = grep_malloc(size * sizeof(wint_t));
+
+		if (mbstowcs(wdata, (const char *)data, size) ==
+		    ((size_t) - 1))
+			return (-1);
+
+		if ((size = mbstowcs(NULL, (const char *)pat, 0)) ==
+		    ((size_t) - 1))
+			return (-1);
+
+		wpat = grep_malloc(size * sizeof(wint_t));
+
+		if (mbstowcs(wpat, (const char *)pat, size) == ((size_t) - 1))
+			return (-1);
+		for (i = 0; i < len; i++) {
+			if ((towlower(wpat[i]) == towlower(wdata[i])) ||
+			    ((grepbehave != GREP_FIXED) && wpat[i] == L'.'))
+				continue;
+			free(wpat);
+			free(wdata);
+				return (i);
+		}
+	} else {
+		for (i = 0; i < len; i++) {
+			if ((pat[i] == data[i]) || ((grepbehave != GREP_FIXED) &&
+			    pat[i] == '.'))
+				continue;
+			return (i);
+		}
+	}
+	return (-1);
+}
+
+static inline void
+grep_revstr(unsigned char *str, int len)
+{
+	int i;
+	char c;
+
+	for (i = 0; i < len / 2; i++) {
+		c = str[i];
+		str[i] = str[len - i - 1];
+		str[len - i - 1] = c;
+	}
+}
diff --git a/toolbox/grep/file.c b/toolbox/grep/file.c
new file mode 100644
index 0000000..86b7658
--- /dev/null
+++ b/toolbox/grep/file.c
@@ -0,0 +1,269 @@
+/*	$NetBSD: file.c,v 1.7 2011/04/18 22:46:48 joerg Exp $	*/
+/*	$FreeBSD: head/usr.bin/grep/file.c 211496 2010-08-19 09:28:59Z des $	*/
+/*	$OpenBSD: file.c,v 1.11 2010/07/02 20:48:48 nicm Exp $	*/
+
+/*-
+ * Copyright (c) 1999 James Howard and Dag-Erling Coïdan Smørgrav
+ * Copyright (C) 2008-2010 Gabor Kovesdan <gabor@FreeBSD.org>
+ * Copyright (C) 2010 Dimitry Andric <dimitry@andric.com>
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#if HAVE_NBTOOL_CONFIG_H
+#include "nbtool_config.h"
+#endif
+
+#include <sys/cdefs.h>
+__RCSID("$NetBSD: file.c,v 1.7 2011/04/18 22:46:48 joerg Exp $");
+
+#include <sys/param.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+
+#ifndef ANDROID
+#include <bzlib.h>
+#endif
+#include <err.h>
+#include <errno.h>
+#include <fcntl.h>
+#include <stddef.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+#include <wchar.h>
+#include <wctype.h>
+#ifndef ANDROID
+#include <zlib.h>
+#endif
+
+#include "grep.h"
+
+#define	MAXBUFSIZ	(32 * 1024)
+#define	LNBUFBUMP	80
+
+#ifndef ANDROID
+static gzFile gzbufdesc;
+static BZFILE* bzbufdesc;
+#endif
+
+static unsigned char buffer[MAXBUFSIZ];
+static unsigned char *bufpos;
+static size_t bufrem;
+
+static unsigned char *lnbuf;
+static size_t lnbuflen;
+
+static inline int
+grep_refill(struct file *f)
+{
+	ssize_t nr;
+	int bzerr;
+
+	bufpos = buffer;
+	bufrem = 0;
+
+#ifndef ANDROID
+	if (filebehave == FILE_GZIP)
+		nr = gzread(gzbufdesc, buffer, MAXBUFSIZ);
+	else if (filebehave == FILE_BZIP && bzbufdesc != NULL) {
+		nr = BZ2_bzRead(&bzerr, bzbufdesc, buffer, MAXBUFSIZ);
+		switch (bzerr) {
+		case BZ_OK:
+		case BZ_STREAM_END:
+			/* No problem, nr will be okay */
+			break;
+		case BZ_DATA_ERROR_MAGIC:
+			/*
+			 * As opposed to gzread(), which simply returns the
+			 * plain file data, if it is not in the correct
+			 * compressed format, BZ2_bzRead() instead aborts.
+			 *
+			 * So, just restart at the beginning of the file again,
+			 * and use plain reads from now on.
+			 */
+			BZ2_bzReadClose(&bzerr, bzbufdesc);
+			bzbufdesc = NULL;
+			if (lseek(f->fd, 0, SEEK_SET) == -1)
+				return (-1);
+			nr = read(f->fd, buffer, MAXBUFSIZ);
+			break;
+		default:
+			/* Make sure we exit with an error */
+			nr = -1;
+		}
+	} else
+#endif
+		nr = read(f->fd, buffer, MAXBUFSIZ);
+
+	if (nr < 0)
+		return (-1);
+
+	bufrem = nr;
+	return (0);
+}
+
+static inline int
+grep_lnbufgrow(size_t newlen)
+{
+
+	if (lnbuflen < newlen) {
+		lnbuf = grep_realloc(lnbuf, newlen);
+		lnbuflen = newlen;
+	}
+
+	return (0);
+}
+
+char *
+grep_fgetln(struct file *f, size_t *lenp)
+{
+	unsigned char *p;
+	char *ret;
+	size_t len;
+	size_t off;
+	ptrdiff_t diff;
+
+	/* Fill the buffer, if necessary */
+	if (bufrem == 0 && grep_refill(f) != 0)
+		goto error;
+
+	if (bufrem == 0) {
+		/* Return zero length to indicate EOF */
+		*lenp = 0;
+		return ((char *)bufpos);
+	}
+
+	/* Look for a newline in the remaining part of the buffer */
+	if ((p = memchr(bufpos, line_sep, bufrem)) != NULL) {
+		++p; /* advance over newline */
+		ret = (char *)bufpos;
+		len = p - bufpos;
+		bufrem -= len;
+		bufpos = p;
+		*lenp = len;
+		return (ret);
+	}
+
+	/* We have to copy the current buffered data to the line buffer */
+	for (len = bufrem, off = 0; ; len += bufrem) {
+		/* Make sure there is room for more data */
+		if (grep_lnbufgrow(len + LNBUFBUMP))
+			goto error;
+		memcpy(lnbuf + off, bufpos, len - off);
+		off = len;
+		if (grep_refill(f) != 0)
+			goto error;
+		if (bufrem == 0)
+			/* EOF: return partial line */
+			break;
+		if ((p = memchr(bufpos, line_sep, bufrem)) == NULL)
+			continue;
+		/* got it: finish up the line (like code above) */
+		++p;
+		diff = p - bufpos;
+		len += diff;
+		if (grep_lnbufgrow(len))
+		    goto error;
+		memcpy(lnbuf + off, bufpos, diff);
+		bufrem -= diff;
+		bufpos = p;
+		break;
+	}
+	*lenp = len;
+	return ((char *)lnbuf);
+
+error:
+	*lenp = 0;
+	return (NULL);
+}
+
+static inline struct file *
+grep_file_init(struct file *f)
+{
+
+#ifndef ANDROID
+	if (filebehave == FILE_GZIP &&
+	    (gzbufdesc = gzdopen(f->fd, "r")) == NULL)
+		goto error;
+
+	if (filebehave == FILE_BZIP &&
+	    (bzbufdesc = BZ2_bzdopen(f->fd, "r")) == NULL)
+		goto error;
+#endif
+
+	/* Fill read buffer, also catches errors early */
+	if (grep_refill(f) != 0)
+		goto error;
+
+	/* Check for binary stuff, if necessary */
+	if (!nulldataflag && binbehave != BINFILE_TEXT &&
+	    memchr(bufpos, '\0', bufrem) != NULL)
+		f->binary = true;
+
+	return (f);
+error:
+	close(f->fd);
+	free(f);
+	return (NULL);
+}
+
+/*
+ * Opens a file for processing.
+ */
+struct file *
+grep_open(const char *path)
+{
+	struct file *f;
+
+	f = grep_malloc(sizeof *f);
+	memset(f, 0, sizeof *f);
+	if (path == NULL) {
+		/* Processing stdin implies --line-buffered. */
+		lbflag = true;
+		f->fd = STDIN_FILENO;
+	} else if ((f->fd = open(path, O_RDONLY)) == -1) {
+		free(f);
+		return (NULL);
+	}
+
+	return (grep_file_init(f));
+}
+
+/*
+ * Closes a file.
+ */
+void
+grep_close(struct file *f)
+{
+
+	close(f->fd);
+
+	/* Reset read buffer and line buffer */
+	bufpos = buffer;
+	bufrem = 0;
+
+	free(lnbuf);
+	lnbuf = NULL;
+	lnbuflen = 0;
+}
diff --git a/toolbox/grep/grep.c b/toolbox/grep/grep.c
new file mode 100644
index 0000000..b5bb2ef
--- /dev/null
+++ b/toolbox/grep/grep.c
@@ -0,0 +1,710 @@
+/*	$NetBSD: grep.c,v 1.11 2012/05/06 22:27:00 joerg Exp $	*/
+/* 	$FreeBSD: head/usr.bin/grep/grep.c 211519 2010-08-19 22:55:17Z delphij $	*/
+/*	$OpenBSD: grep.c,v 1.42 2010/07/02 22:18:03 tedu Exp $	*/
+
+/*-
+ * Copyright (c) 1999 James Howard and Dag-Erling Coïdan Smørgrav
+ * Copyright (C) 2008-2009 Gabor Kovesdan <gabor@FreeBSD.org>
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#if HAVE_NBTOOL_CONFIG_H
+#include "nbtool_config.h"
+#endif
+
+#include <sys/cdefs.h>
+__RCSID("$NetBSD: grep.c,v 1.11 2012/05/06 22:27:00 joerg Exp $");
+
+#include <sys/stat.h>
+#include <sys/types.h>
+
+#include <ctype.h>
+#include <err.h>
+#include <errno.h>
+#include <getopt.h>
+#include <limits.h>
+#include <libgen.h>
+#include <locale.h>
+#include <stdbool.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+
+#include "grep.h"
+
+#ifndef WITHOUT_NLS
+#include <nl_types.h>
+nl_catd	 catalog;
+#endif
+
+/*
+ * Default messags to use when NLS is disabled or no catalogue
+ * is found.
+ */
+const char	*errstr[] = {
+	"",
+/* 1*/	"(standard input)",
+/* 2*/	"cannot read bzip2 compressed file",
+/* 3*/	"unknown %s option",
+/* 4*/	"usage: %s [-abcDEFGHhIiJLlmnOoPqRSsUVvwxZz] [-A num] [-B num] [-C[num]]\n",
+/* 5*/	"\t[-e pattern] [-f file] [--binary-files=value] [--color=when]\n",
+/* 6*/	"\t[--context[=num]] [--directories=action] [--label] [--line-buffered]\n",
+/* 7*/	"\t[pattern] [file ...]\n",
+/* 8*/	"Binary file %s matches\n",
+/* 9*/	"%s (BSD grep) %s\n",
+};
+
+/* Flags passed to regcomp() and regexec() */
+int		 cflags = 0;
+int		 eflags = REG_STARTEND;
+
+/* Searching patterns */
+unsigned int	 patterns, pattern_sz;
+char		**pattern;
+regex_t		*r_pattern;
+fastgrep_t	*fg_pattern;
+
+/* Filename exclusion/inclusion patterns */
+unsigned int	 fpatterns, fpattern_sz;
+unsigned int	 dpatterns, dpattern_sz;
+struct epat	*dpattern, *fpattern;
+
+/* For regex errors  */
+char	 re_error[RE_ERROR_BUF + 1];
+
+/* Command-line flags */
+unsigned long long Aflag;	/* -A x: print x lines trailing each match */
+unsigned long long Bflag;	/* -B x: print x lines leading each match */
+bool	 Hflag;		/* -H: always print file name */
+bool	 Lflag;		/* -L: only show names of files with no matches */
+bool	 bflag;		/* -b: show block numbers for each match */
+bool	 cflag;		/* -c: only show a count of matching lines */
+bool	 hflag;		/* -h: don't print filename headers */
+bool	 iflag;		/* -i: ignore case */
+bool	 lflag;		/* -l: only show names of files with matches */
+bool	 mflag;		/* -m x: stop reading the files after x matches */
+unsigned long long mcount;	/* count for -m */
+bool	 nflag;		/* -n: show line numbers in front of matching lines */
+bool	 oflag;		/* -o: print only matching part */
+bool	 qflag;		/* -q: quiet mode (don't output anything) */
+bool	 sflag;		/* -s: silent mode (ignore errors) */
+bool	 vflag;		/* -v: only show non-matching lines */
+bool	 wflag;		/* -w: pattern must start and end on word boundaries */
+bool	 xflag;		/* -x: pattern must match entire line */
+bool	 lbflag;	/* --line-buffered */
+bool	 nullflag;	/* --null */
+bool	 nulldataflag;	/* --null-data */
+unsigned char line_sep = '\n';	/* 0 for --null-data */
+char	*label;		/* --label */
+const char *color;	/* --color */
+int	 grepbehave = GREP_BASIC;	/* -EFGP: type of the regex */
+int	 binbehave = BINFILE_BIN;	/* -aIU: handling of binary files */
+int	 filebehave = FILE_STDIO;	/* -JZ: normal, gzip or bzip2 file */
+int	 devbehave = DEV_READ;		/* -D: handling of devices */
+int	 dirbehave = DIR_READ;		/* -dRr: handling of directories */
+int	 linkbehave = LINK_READ;	/* -OpS: handling of symlinks */
+
+bool	 dexclude, dinclude;	/* --exclude-dir and --include-dir */
+bool	 fexclude, finclude;	/* --exclude and --include */
+
+enum {
+	BIN_OPT = CHAR_MAX + 1,
+	COLOR_OPT,
+	DECOMPRESS_OPT,
+	HELP_OPT,
+	MMAP_OPT,
+	LINEBUF_OPT,
+	LABEL_OPT,
+	R_EXCLUDE_OPT,
+	R_INCLUDE_OPT,
+	R_DEXCLUDE_OPT,
+	R_DINCLUDE_OPT
+};
+
+static inline const char	*init_color(const char *);
+
+/* Housekeeping */
+int	 tail;		/* lines left to print */
+bool	 notfound;	/* file not found */
+
+extern char	*__progname;
+
+/*
+ * Prints usage information and returns 2.
+ */
+__dead static void
+usage(void)
+{
+	fprintf(stderr, getstr(4), __progname);
+	fprintf(stderr, "%s", getstr(5));
+	fprintf(stderr, "%s", getstr(5));
+	fprintf(stderr, "%s", getstr(6));
+	fprintf(stderr, "%s", getstr(7));
+	exit(2);
+}
+
+static const char optstr[] =
+    "0123456789A:B:C:D:EFGHIJLOPSRUVZabcd:e:f:hilm:nopqrsuvwxyz";
+
+struct option long_options[] =
+{
+	{"binary-files",	required_argument,	NULL, BIN_OPT},
+	{"decompress",          no_argument,            NULL, DECOMPRESS_OPT},
+	{"help",		no_argument,		NULL, HELP_OPT},
+	{"mmap",		no_argument,		NULL, MMAP_OPT},
+	{"line-buffered",	no_argument,		NULL, LINEBUF_OPT},
+	{"label",		required_argument,	NULL, LABEL_OPT},
+	{"color",		optional_argument,	NULL, COLOR_OPT},
+	{"colour",		optional_argument,	NULL, COLOR_OPT},
+	{"exclude",		required_argument,	NULL, R_EXCLUDE_OPT},
+	{"include",		required_argument,	NULL, R_INCLUDE_OPT},
+	{"exclude-dir",		required_argument,	NULL, R_DEXCLUDE_OPT},
+	{"include-dir",		required_argument,	NULL, R_DINCLUDE_OPT},
+	{"after-context",	required_argument,	NULL, 'A'},
+	{"text",		no_argument,		NULL, 'a'},
+	{"before-context",	required_argument,	NULL, 'B'},
+	{"byte-offset",		no_argument,		NULL, 'b'},
+	{"context",		optional_argument,	NULL, 'C'},
+	{"count",		no_argument,		NULL, 'c'},
+	{"devices",		required_argument,	NULL, 'D'},
+        {"directories",		required_argument,	NULL, 'd'},
+	{"extended-regexp",	no_argument,		NULL, 'E'},
+	{"regexp",		required_argument,	NULL, 'e'},
+	{"fixed-strings",	no_argument,		NULL, 'F'},
+	{"file",		required_argument,	NULL, 'f'},
+	{"basic-regexp",	no_argument,		NULL, 'G'},
+	{"no-filename",		no_argument,		NULL, 'h'},
+	{"with-filename",	no_argument,		NULL, 'H'},
+	{"ignore-case",		no_argument,		NULL, 'i'},
+	{"bz2decompress",	no_argument,		NULL, 'J'},
+	{"files-with-matches",	no_argument,		NULL, 'l'},
+	{"files-without-match", no_argument,            NULL, 'L'},
+	{"max-count",		required_argument,	NULL, 'm'},
+	{"line-number",		no_argument,		NULL, 'n'},
+	{"only-matching",	no_argument,		NULL, 'o'},
+	{"quiet",		no_argument,		NULL, 'q'},
+	{"silent",		no_argument,		NULL, 'q'},
+	{"recursive",		no_argument,		NULL, 'r'},
+	{"no-messages",		no_argument,		NULL, 's'},
+	{"binary",		no_argument,		NULL, 'U'},
+	{"unix-byte-offsets",	no_argument,		NULL, 'u'},
+	{"invert-match",	no_argument,		NULL, 'v'},
+	{"version",		no_argument,		NULL, 'V'},
+	{"word-regexp",		no_argument,		NULL, 'w'},
+	{"line-regexp",		no_argument,		NULL, 'x'},
+	{"null",		no_argument,		NULL, 'Z'},
+	{"null-data",		no_argument,		NULL, 'z'},
+	{NULL,			no_argument,		NULL, 0}
+};
+
+/*
+ * Adds a searching pattern to the internal array.
+ */
+static void
+add_pattern(char *pat, size_t len)
+{
+
+	/* TODO: Check for empty patterns and shortcut */
+
+	/* Increase size if necessary */
+	if (patterns == pattern_sz) {
+		pattern_sz *= 2;
+		pattern = grep_realloc(pattern, ++pattern_sz *
+		    sizeof(*pattern));
+	}
+	if (len > 0 && pat[len - 1] == '\n')
+		--len;
+	/* pat may not be NUL-terminated */
+	pattern[patterns] = grep_malloc(len + 1);
+	memcpy(pattern[patterns], pat, len);
+	pattern[patterns][len] = '\0';
+	++patterns;
+}
+
+/*
+ * Adds a file include/exclude pattern to the internal array.
+ */
+static void
+add_fpattern(const char *pat, int mode)
+{
+
+	/* Increase size if necessary */
+	if (fpatterns == fpattern_sz) {
+		fpattern_sz *= 2;
+		fpattern = grep_realloc(fpattern, ++fpattern_sz *
+		    sizeof(struct epat));
+	}
+	fpattern[fpatterns].pat = grep_strdup(pat);
+	fpattern[fpatterns].mode = mode;
+	++fpatterns;
+}
+
+/*
+ * Adds a directory include/exclude pattern to the internal array.
+ */
+static void
+add_dpattern(const char *pat, int mode)
+{
+
+	/* Increase size if necessary */
+	if (dpatterns == dpattern_sz) {
+		dpattern_sz *= 2;
+		dpattern = grep_realloc(dpattern, ++dpattern_sz *
+		    sizeof(struct epat));
+	}
+	dpattern[dpatterns].pat = grep_strdup(pat);
+	dpattern[dpatterns].mode = mode;
+	++dpatterns;
+}
+
+/*
+ * Reads searching patterns from a file and adds them with add_pattern().
+ */
+static void
+read_patterns(const char *fn)
+{
+	FILE *f;
+	char *line;
+	size_t len;
+	ssize_t rlen;
+
+	if ((f = fopen(fn, "r")) == NULL)
+		err(2, "%s", fn);
+	line = NULL;
+	len = 0;
+#ifndef ANDROID
+	while ((rlen = getline(&line, &len, f)) != -1)
+		add_pattern(line, *line == '\n' ? 0 : (size_t)rlen);
+#endif
+	free(line);
+	if (ferror(f))
+		err(2, "%s", fn);
+	fclose(f);
+}
+
+static inline const char *
+init_color(const char *d)
+{
+	char *c;
+
+	c = getenv("GREP_COLOR");
+	return (c != NULL ? c : d);
+}
+
+int
+grep_main(int argc, char *argv[])
+{
+	char **aargv, **eargv, *eopts;
+	char *ep;
+	unsigned long long l;
+	unsigned int aargc, eargc, i, j;
+	int c, lastc, needpattern, newarg, prevoptind;
+
+	setlocale(LC_ALL, "");
+
+#ifndef WITHOUT_NLS
+	catalog = catopen("grep", NL_CAT_LOCALE);
+#endif
+
+	/* Check what is the program name of the binary.  In this
+	   way we can have all the funcionalities in one binary
+	   without the need of scripting and using ugly hacks. */
+	switch (__progname[0]) {
+	case 'e':
+		grepbehave = GREP_EXTENDED;
+		break;
+	case 'f':
+		grepbehave = GREP_FIXED;
+		break;
+	case 'g':
+		grepbehave = GREP_BASIC;
+		break;
+	case 'z':
+		filebehave = FILE_GZIP;
+		switch(__progname[1]) {
+		case 'e':
+			grepbehave = GREP_EXTENDED;
+			break;
+		case 'f':
+			grepbehave = GREP_FIXED;
+			break;
+		case 'g':
+			grepbehave = GREP_BASIC;
+			break;
+		}
+		break;
+	}
+
+	lastc = '\0';
+	newarg = 1;
+	prevoptind = 1;
+	needpattern = 1;
+
+	eopts = getenv("GREP_OPTIONS");
+
+	/* support for extra arguments in GREP_OPTIONS */
+	eargc = 0;
+	if (eopts != NULL) {
+		char *str;
+
+		/* make an estimation of how many extra arguments we have */
+		for (j = 0; j < strlen(eopts); j++)
+			if (eopts[j] == ' ')
+				eargc++;
+
+		eargv = (char **)grep_malloc(sizeof(char *) * (eargc + 1));
+
+		eargc = 0;
+		/* parse extra arguments */
+		while ((str = strsep(&eopts, " ")) != NULL)
+			eargv[eargc++] = grep_strdup(str);
+
+		aargv = (char **)grep_calloc(eargc + argc + 1,
+		    sizeof(char *));
+
+		aargv[0] = argv[0];
+		for (i = 0; i < eargc; i++)
+			aargv[i + 1] = eargv[i];
+		for (j = 1; j < (unsigned int)argc; j++, i++)
+			aargv[i + 1] = argv[j];
+
+		aargc = eargc + argc;
+	} else {
+		aargv = argv;
+		aargc = argc;
+	}
+
+	while (((c = getopt_long(aargc, aargv, optstr, long_options, NULL)) !=
+	    -1)) {
+		switch (c) {
+		case '0': case '1': case '2': case '3': case '4':
+		case '5': case '6': case '7': case '8': case '9':
+			if (newarg || !isdigit(lastc))
+				Aflag = 0;
+			else if (Aflag > LLONG_MAX / 10) {
+				errno = ERANGE;
+				err(2, NULL);
+			}
+			Aflag = Bflag = (Aflag * 10) + (c - '0');
+			break;
+		case 'C':
+			if (optarg == NULL) {
+				Aflag = Bflag = 2;
+				break;
+			}
+			/* FALLTHROUGH */
+		case 'A':
+			/* FALLTHROUGH */
+		case 'B':
+			errno = 0;
+			l = strtoull(optarg, &ep, 10);
+			if (((errno == ERANGE) && (l == ULLONG_MAX)) ||
+			    ((errno == EINVAL) && (l == 0)))
+				err(2, NULL);
+			else if (ep[0] != '\0') {
+				errno = EINVAL;
+				err(2, NULL);
+			}
+			if (c == 'A')
+				Aflag = l;
+			else if (c == 'B')
+				Bflag = l;
+			else
+				Aflag = Bflag = l;
+			break;
+		case 'a':
+			binbehave = BINFILE_TEXT;
+			break;
+		case 'b':
+			bflag = true;
+			break;
+		case 'c':
+			cflag = true;
+			break;
+		case 'D':
+			if (strcasecmp(optarg, "skip") == 0)
+				devbehave = DEV_SKIP;
+			else if (strcasecmp(optarg, "read") == 0)
+				devbehave = DEV_READ;
+			else
+				errx(2, getstr(3), "--devices");
+			break;
+		case 'd':
+			if (strcasecmp("recurse", optarg) == 0) {
+				Hflag = true;
+				dirbehave = DIR_RECURSE;
+			} else if (strcasecmp("skip", optarg) == 0)
+				dirbehave = DIR_SKIP;
+			else if (strcasecmp("read", optarg) == 0)
+				dirbehave = DIR_READ;
+			else
+				errx(2, getstr(3), "--directories");
+			break;
+		case 'E':
+			grepbehave = GREP_EXTENDED;
+			break;
+		case 'e':
+			add_pattern(optarg, strlen(optarg));
+			needpattern = 0;
+			break;
+		case 'F':
+			grepbehave = GREP_FIXED;
+			break;
+		case 'f':
+			read_patterns(optarg);
+			needpattern = 0;
+			break;
+		case 'G':
+			grepbehave = GREP_BASIC;
+			break;
+		case 'H':
+			Hflag = true;
+			break;
+		case 'h':
+			Hflag = false;
+			hflag = true;
+			break;
+		case 'I':
+			binbehave = BINFILE_SKIP;
+			break;
+		case 'i':
+		case 'y':
+			iflag =  true;
+			cflags |= REG_ICASE;
+			break;
+		case 'J':
+			filebehave = FILE_BZIP;
+			break;
+		case 'L':
+			lflag = false;
+			Lflag = true;
+			break;
+		case 'l':
+			Lflag = false;
+			lflag = true;
+			break;
+		case 'm':
+			mflag = true;
+			errno = 0;
+			mcount = strtoull(optarg, &ep, 10);
+			if (((errno == ERANGE) && (mcount == ULLONG_MAX)) ||
+			    ((errno == EINVAL) && (mcount == 0)))
+				err(2, NULL);
+			else if (ep[0] != '\0') {
+				errno = EINVAL;
+				err(2, NULL);
+			}
+			break;
+		case 'n':
+			nflag = true;
+			break;
+		case 'O':
+			linkbehave = LINK_EXPLICIT;
+			break;
+		case 'o':
+			oflag = true;
+			break;
+		case 'p':
+			linkbehave = LINK_SKIP;
+			break;
+		case 'q':
+			qflag = true;
+			break;
+		case 'S':
+			linkbehave = LINK_READ;
+			break;
+		case 'R':
+		case 'r':
+			dirbehave = DIR_RECURSE;
+			Hflag = true;
+			break;
+		case 's':
+			sflag = true;
+			break;
+		case 'U':
+			binbehave = BINFILE_BIN;
+			break;
+		case 'u':
+		case MMAP_OPT:
+			/* noop, compatibility */
+			break;
+		case 'V':
+			printf(getstr(9), __progname, VERSION);
+			exit(0);
+		case 'v':
+			vflag = true;
+			break;
+		case 'w':
+			wflag = true;
+			break;
+		case 'x':
+			xflag = true;
+			break;
+		case 'Z':
+			nullflag = true;
+			break;
+		case 'z':
+			nulldataflag = true;
+			line_sep = '\0';
+			break;
+		case BIN_OPT:
+			if (strcasecmp("binary", optarg) == 0)
+				binbehave = BINFILE_BIN;
+			else if (strcasecmp("without-match", optarg) == 0)
+				binbehave = BINFILE_SKIP;
+			else if (strcasecmp("text", optarg) == 0)
+				binbehave = BINFILE_TEXT;
+			else
+				errx(2, getstr(3), "--binary-files");
+			break;
+		case COLOR_OPT:
+			color = NULL;
+			if (optarg == NULL || strcasecmp("auto", optarg) == 0 ||
+			    strcasecmp("tty", optarg) == 0 ||
+			    strcasecmp("if-tty", optarg) == 0) {
+				char *term;
+
+				term = getenv("TERM");
+				if (isatty(STDOUT_FILENO) && term != NULL &&
+				    strcasecmp(term, "dumb") != 0)
+					color = init_color("01;31");
+			} else if (strcasecmp("always", optarg) == 0 ||
+			    strcasecmp("yes", optarg) == 0 ||
+			    strcasecmp("force", optarg) == 0) {
+				color = init_color("01;31");
+			} else if (strcasecmp("never", optarg) != 0 &&
+			    strcasecmp("none", optarg) != 0 &&
+			    strcasecmp("no", optarg) != 0)
+				errx(2, getstr(3), "--color");
+			break;
+		case DECOMPRESS_OPT:
+			filebehave = FILE_GZIP;
+			break;
+		case LABEL_OPT:
+			label = optarg;
+			break;
+		case LINEBUF_OPT:
+			lbflag = true;
+			break;
+		case R_INCLUDE_OPT:
+			finclude = true;
+			add_fpattern(optarg, INCL_PAT);
+			break;
+		case R_EXCLUDE_OPT:
+			fexclude = true;
+			add_fpattern(optarg, EXCL_PAT);
+			break;
+		case R_DINCLUDE_OPT:
+			dinclude = true;
+			add_dpattern(optarg, INCL_PAT);
+			break;
+		case R_DEXCLUDE_OPT:
+			dexclude = true;
+			add_dpattern(optarg, EXCL_PAT);
+			break;
+		case HELP_OPT:
+		default:
+			usage();
+		}
+		lastc = c;
+		newarg = optind != prevoptind;
+		prevoptind = optind;
+	}
+	aargc -= optind;
+	aargv += optind;
+
+	/* Fail if we don't have any pattern */
+	if (aargc == 0 && needpattern)
+		usage();
+
+	/* Process patterns from command line */
+	if (aargc != 0 && needpattern) {
+		add_pattern(*aargv, strlen(*aargv));
+		--aargc;
+		++aargv;
+	}
+
+	switch (grepbehave) {
+	case GREP_FIXED:
+	case GREP_BASIC:
+		break;
+	case GREP_EXTENDED:
+		cflags |= REG_EXTENDED;
+		break;
+	default:
+		/* NOTREACHED */
+		usage();
+	}
+
+	fg_pattern = grep_calloc(patterns, sizeof(*fg_pattern));
+	r_pattern = grep_calloc(patterns, sizeof(*r_pattern));
+/*
+ * XXX: fgrepcomp() and fastcomp() are workarounds for regexec() performance.
+ * Optimizations should be done there.
+ */
+		/* Check if cheating is allowed (always is for fgrep). */
+	if (grepbehave == GREP_FIXED) {
+		for (i = 0; i < patterns; ++i)
+			fgrepcomp(&fg_pattern[i], pattern[i]);
+	} else {
+		for (i = 0; i < patterns; ++i) {
+			if (fastcomp(&fg_pattern[i], pattern[i])) {
+				/* Fall back to full regex library */
+				c = regcomp(&r_pattern[i], pattern[i], cflags);
+				if (c != 0) {
+					regerror(c, &r_pattern[i], re_error,
+					    RE_ERROR_BUF);
+					errx(2, "%s", re_error);
+				}
+			}
+		}
+	}
+
+	if (lbflag)
+		setlinebuf(stdout);
+
+	if ((aargc == 0 || aargc == 1) && !Hflag)
+		hflag = true;
+
+	if (aargc == 0)
+		exit(!procfile("-"));
+
+	if (dirbehave == DIR_RECURSE)
+		c = grep_tree(aargv);
+	else
+		for (c = 0; aargc--; ++aargv) {
+			if ((finclude || fexclude) && !file_matching(*aargv))
+				continue;
+			c+= procfile(*aargv);
+		}
+
+#ifndef WITHOUT_NLS
+	catclose(catalog);
+#endif
+
+	/* Find out the correct return value according to the
+	   results and the command line option. */
+	exit(c ? (notfound ? (qflag ? 0 : 2) : 0) : (notfound ? 2 : 1));
+}
diff --git a/toolbox/grep/grep.h b/toolbox/grep/grep.h
new file mode 100644
index 0000000..6454f93
--- /dev/null
+++ b/toolbox/grep/grep.h
@@ -0,0 +1,166 @@
+/*	$NetBSD: grep.h,v 1.8 2012/05/06 22:27:00 joerg Exp $	*/
+/*	$OpenBSD: grep.h,v 1.15 2010/04/05 03:03:55 tedu Exp $	*/
+/*	$FreeBSD: head/usr.bin/grep/grep.h 211496 2010-08-19 09:28:59Z des $	*/
+
+/*-
+ * Copyright (c) 1999 James Howard and Dag-Erling Coïdan Smørgrav
+ * Copyright (c) 2008-2009 Gabor Kovesdan <gabor@FreeBSD.org>
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#ifdef ANDROID
+#define WITHOUT_NLS
+#endif
+
+#ifndef ANDROID
+#include <bzlib.h>
+#endif
+#include <limits.h>
+#include <regex.h>
+#include <stdbool.h>
+#include <stdio.h>
+#ifndef ANDROID
+#include <zlib.h>
+#endif
+
+#ifdef WITHOUT_NLS
+#define getstr(n)	 errstr[n]
+#else
+#include <nl_types.h>
+
+extern nl_catd		 catalog;
+#define getstr(n)	 catgets(catalog, 1, n, errstr[n])
+#endif
+
+extern const char		*errstr[];
+
+#define VERSION		"2.5.1-FreeBSD"
+
+#define GREP_FIXED	0
+#define GREP_BASIC	1
+#define GREP_EXTENDED	2
+
+#define BINFILE_BIN	0
+#define BINFILE_SKIP	1
+#define BINFILE_TEXT	2
+
+#define FILE_STDIO	0
+#define FILE_GZIP	1
+#define FILE_BZIP	2
+
+#define DIR_READ	0
+#define DIR_SKIP	1
+#define DIR_RECURSE	2
+
+#define DEV_READ	0
+#define DEV_SKIP	1
+
+#define LINK_READ	0
+#define LINK_EXPLICIT	1
+#define LINK_SKIP	2
+
+#define EXCL_PAT	0
+#define INCL_PAT	1
+
+#define MAX_LINE_MATCHES	32
+
+struct file {
+	int		 fd;
+	bool		 binary;
+};
+
+struct str {
+	off_t		 off;
+	size_t		 len;
+	char		*dat;
+	char		*file;
+	int		 line_no;
+};
+
+struct epat {
+	char		*pat;
+	int		 mode;
+};
+
+typedef struct {
+	size_t		 len;
+	unsigned char	*pattern;
+	int		 qsBc[UCHAR_MAX + 1];
+	/* flags */
+	bool		 bol;
+	bool		 eol;
+	bool		 reversed;
+	bool		 word;
+} fastgrep_t;
+
+/* Flags passed to regcomp() and regexec() */
+extern int	 cflags, eflags;
+
+/* Command line flags */
+extern bool	 Eflag, Fflag, Gflag, Hflag, Lflag,
+		 bflag, cflag, hflag, iflag, lflag, mflag, nflag, oflag,
+		 qflag, sflag, vflag, wflag, xflag;
+extern bool	 dexclude, dinclude, fexclude, finclude, lbflag, nullflag, nulldataflag;
+extern unsigned char line_sep;
+extern unsigned long long Aflag, Bflag, mcount;
+extern char	*label;
+extern const char *color;
+extern int	 binbehave, devbehave, dirbehave, filebehave, grepbehave, linkbehave;
+
+extern bool	 notfound;
+extern int	 tail;
+extern unsigned int dpatterns, fpatterns, patterns;
+extern char    **pattern;
+extern struct epat *dpattern, *fpattern;
+extern regex_t	*er_pattern, *r_pattern;
+extern fastgrep_t *fg_pattern;
+
+/* For regex errors  */
+#define RE_ERROR_BUF	512
+extern char	 re_error[RE_ERROR_BUF + 1];	/* Seems big enough */
+
+/* util.c */
+bool	 file_matching(const char *fname);
+int	 procfile(const char *fn);
+int	 grep_tree(char **argv);
+void	*grep_malloc(size_t size);
+void	*grep_calloc(size_t nmemb, size_t size);
+void	*grep_realloc(void *ptr, size_t size);
+char	*grep_strdup(const char *str);
+void	 printline(struct str *line, int sep, regmatch_t *matches, int m);
+
+/* queue.c */
+void	 enqueue(struct str *x);
+void	 printqueue(void);
+void	 clearqueue(void);
+
+/* file.c */
+void		 grep_close(struct file *f);
+struct file	*grep_open(const char *path);
+char		*grep_fgetln(struct file *f, size_t *len);
+
+/* fastgrep.c */
+int		 fastcomp(fastgrep_t *, const char *);
+void		 fgrepcomp(fastgrep_t *, const char *);
+int		 grep_search(fastgrep_t *, const unsigned char *, size_t, regmatch_t *);
diff --git a/toolbox/grep/queue.c b/toolbox/grep/queue.c
new file mode 100644
index 0000000..e3c6be1
--- /dev/null
+++ b/toolbox/grep/queue.c
@@ -0,0 +1,116 @@
+/*	$NetBSD: queue.c,v 1.5 2011/08/31 16:24:57 plunky Exp $	*/
+/*	$FreeBSD: head/usr.bin/grep/queue.c 211496 2010-08-19 09:28:59Z des $	*/
+/*-
+ * Copyright (c) 1999 James Howard and Dag-Erling Coïdan Smørgrav
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+/*
+ * A really poor man's queue.  It does only what it has to and gets out of
+ * Dodge.  It is used in place of <sys/queue.h> to get a better performance.
+ */
+
+#if HAVE_NBTOOL_CONFIG_H
+#include "nbtool_config.h"
+#endif
+
+#include <sys/cdefs.h>
+__RCSID("$NetBSD: queue.c,v 1.5 2011/08/31 16:24:57 plunky Exp $");
+
+#include <sys/param.h>
+#include <sys/queue.h>
+
+#include <stdlib.h>
+#include <string.h>
+
+#include "grep.h"
+
+struct qentry {
+	STAILQ_ENTRY(qentry)	list;
+	struct str	 	data;
+};
+
+static STAILQ_HEAD(, qentry)	queue = STAILQ_HEAD_INITIALIZER(queue);
+static unsigned long long	count;
+
+static struct qentry	*dequeue(void);
+
+void
+enqueue(struct str *x)
+{
+	struct qentry *item;
+
+	item = grep_malloc(sizeof(struct qentry));
+	item->data.dat = grep_malloc(sizeof(char) * x->len);
+	item->data.len = x->len;
+	item->data.line_no = x->line_no;
+	item->data.off = x->off;
+	memcpy(item->data.dat, x->dat, x->len);
+	item->data.file = x->file;
+
+	STAILQ_INSERT_TAIL(&queue, item, list);
+
+	if (++count > Bflag) {
+		item = dequeue();
+		free(item->data.dat);
+		free(item);
+	}
+}
+
+static struct qentry *
+dequeue(void)
+{
+	struct qentry *item;
+
+	item = STAILQ_FIRST(&queue);
+	if (item == NULL)
+		return (NULL);
+
+	STAILQ_REMOVE_HEAD(&queue, list);
+	--count;
+	return (item);
+}
+
+void
+printqueue(void)
+{
+	struct qentry *item;
+
+	while ((item = dequeue()) != NULL) {
+		printline(&item->data, '-', NULL, 0);
+		free(item->data.dat);
+		free(item);
+	}
+}
+
+void
+clearqueue(void)
+{
+	struct qentry *item;
+
+	while ((item = dequeue()) != NULL) {
+		free(item->data.dat);
+		free(item);
+	}
+}
diff --git a/toolbox/grep/util.c b/toolbox/grep/util.c
new file mode 100644
index 0000000..497db06
--- /dev/null
+++ b/toolbox/grep/util.c
@@ -0,0 +1,498 @@
+/*	$NetBSD: util.c,v 1.16 2012/05/06 22:32:05 joerg Exp $	*/
+/*	$FreeBSD: head/usr.bin/grep/util.c 211496 2010-08-19 09:28:59Z des $	*/
+/*	$OpenBSD: util.c,v 1.39 2010/07/02 22:18:03 tedu Exp $	*/
+
+/*-
+ * Copyright (c) 1999 James Howard and Dag-Erling Coïdan Smørgrav
+ * Copyright (C) 2008-2010 Gabor Kovesdan <gabor@FreeBSD.org>
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#if HAVE_NBTOOL_CONFIG_H
+#include "nbtool_config.h"
+#endif
+
+#include <sys/cdefs.h>
+__RCSID("$NetBSD: util.c,v 1.16 2012/05/06 22:32:05 joerg Exp $");
+
+#include <sys/stat.h>
+#include <sys/types.h>
+
+#include <ctype.h>
+#include <err.h>
+#include <errno.h>
+#include <fnmatch.h>
+#include <fts.h>
+#include <libgen.h>
+#include <stdbool.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+#include <wchar.h>
+#include <wctype.h>
+
+#include "grep.h"
+
+static bool	 first, first_global = true;
+static unsigned long long since_printed;
+
+static int	 procline(struct str *l, int);
+
+bool
+file_matching(const char *fname)
+{
+	char *fname_base, *fname_copy;
+	unsigned int i;
+	bool ret;
+
+	ret = finclude ? false : true;
+	fname_copy = grep_strdup(fname);
+	fname_base = basename(fname_copy);
+
+	for (i = 0; i < fpatterns; ++i) {
+		if (fnmatch(fpattern[i].pat, fname, 0) == 0 ||
+		    fnmatch(fpattern[i].pat, fname_base, 0) == 0) {
+			if (fpattern[i].mode == EXCL_PAT)
+				return (false);
+			else
+				ret = true;
+		}
+	}
+	free(fname_copy);
+	return (ret);
+}
+
+static inline bool
+dir_matching(const char *dname)
+{
+	unsigned int i;
+	bool ret;
+
+	ret = dinclude ? false : true;
+
+	for (i = 0; i < dpatterns; ++i) {
+		if (dname != NULL &&
+		    fnmatch(dname, dpattern[i].pat, 0) == 0) {
+			if (dpattern[i].mode == EXCL_PAT)
+				return (false);
+			else
+				ret = true;
+		}
+	}
+	return (ret);
+}
+
+/*
+ * Processes a directory when a recursive search is performed with
+ * the -R option.  Each appropriate file is passed to procfile().
+ */
+int
+grep_tree(char **argv)
+{
+	FTS *fts;
+	FTSENT *p;
+	char *d, *dir = NULL;
+	int c, fts_flags;
+	bool ok;
+
+	c = fts_flags = 0;
+
+	switch(linkbehave) {
+	case LINK_EXPLICIT:
+		fts_flags = FTS_COMFOLLOW;
+		break;
+	case LINK_SKIP:
+		fts_flags = FTS_PHYSICAL;
+		break;
+	default:
+		fts_flags = FTS_LOGICAL;
+
+	}
+
+	fts_flags |= FTS_NOSTAT | FTS_NOCHDIR;
+
+	if (!(fts = fts_open(argv, fts_flags, NULL)))
+		err(2, "fts_open");
+	while ((p = fts_read(fts)) != NULL) {
+		switch (p->fts_info) {
+		case FTS_DNR:
+			/* FALLTHROUGH */
+		case FTS_ERR:
+			errx(2, "%s: %s", p->fts_path, strerror(p->fts_errno));
+			break;
+		case FTS_D:
+			/* FALLTHROUGH */
+		case FTS_DP:
+			break;
+		case FTS_DC:
+			/* Print a warning for recursive directory loop */
+			warnx("warning: %s: recursive directory loop",
+				p->fts_path);
+			break;
+		default:
+			/* Check for file exclusion/inclusion */
+			ok = true;
+			if (dexclude || dinclude) {
+				if ((d = strrchr(p->fts_path, '/')) != NULL) {
+					dir = grep_malloc(sizeof(char) *
+					    (d - p->fts_path + 1));
+					memcpy(dir, p->fts_path,
+					    d - p->fts_path);
+					dir[d - p->fts_path] = '\0';
+				}
+				ok = dir_matching(dir);
+				free(dir);
+				dir = NULL;
+			}
+			if (fexclude || finclude)
+				ok &= file_matching(p->fts_path);
+
+			if (ok)
+				c += procfile(p->fts_path);
+			break;
+		}
+	}
+
+	fts_close(fts);
+	return (c);
+}
+
+/*
+ * Opens a file and processes it.  Each file is processed line-by-line
+ * passing the lines to procline().
+ */
+int
+procfile(const char *fn)
+{
+	struct file *f;
+	struct stat sb;
+	struct str ln;
+	mode_t s;
+	int c, t;
+
+	if (mflag && (mcount <= 0))
+		return (0);
+
+	if (strcmp(fn, "-") == 0) {
+		fn = label != NULL ? label : getstr(1);
+		f = grep_open(NULL);
+	} else {
+		if (!stat(fn, &sb)) {
+			/* Check if we need to process the file */
+			s = sb.st_mode & S_IFMT;
+			if (s == S_IFDIR && dirbehave == DIR_SKIP)
+				return (0);
+			if ((s == S_IFIFO || s == S_IFCHR || s == S_IFBLK
+				|| s == S_IFSOCK) && devbehave == DEV_SKIP)
+					return (0);
+		}
+		f = grep_open(fn);
+	}
+	if (f == NULL) {
+		if (!sflag)
+			warn("%s", fn);
+		if (errno == ENOENT)
+			notfound = true;
+		return (0);
+	}
+
+	ln.file = grep_malloc(strlen(fn) + 1);
+	strcpy(ln.file, fn);
+	ln.line_no = 0;
+	ln.len = 0;
+	tail = 0;
+	ln.off = -1;
+
+	for (first = true, c = 0;  c == 0 || !(lflag || qflag); ) {
+		ln.off += ln.len + 1;
+		if ((ln.dat = grep_fgetln(f, &ln.len)) == NULL || ln.len == 0)
+			break;
+		if (ln.len > 0 && ln.dat[ln.len - 1] == line_sep)
+			--ln.len;
+		ln.line_no++;
+
+		/* Return if we need to skip a binary file */
+		if (f->binary && binbehave == BINFILE_SKIP) {
+			grep_close(f);
+			free(ln.file);
+			free(f);
+			return (0);
+		}
+		/* Process the file line-by-line */
+		t = procline(&ln, f->binary);
+		c += t;
+
+		/* Count the matches if we have a match limit */
+		if (mflag) {
+			mcount -= t;
+			if (mcount <= 0)
+				break;
+		}
+	}
+	if (Bflag > 0)
+		clearqueue();
+	grep_close(f);
+
+	if (cflag) {
+		if (!hflag)
+			printf("%s:", ln.file);
+		printf("%u%c", c, line_sep);
+	}
+	if (lflag && !qflag && c != 0)
+		printf("%s%c", fn, line_sep);
+	if (Lflag && !qflag && c == 0)
+		printf("%s%c", fn, line_sep);
+	if (c && !cflag && !lflag && !Lflag &&
+	    binbehave == BINFILE_BIN && f->binary && !qflag)
+		printf(getstr(8), fn);
+
+	free(ln.file);
+	free(f);
+	return (c);
+}
+
+#define iswword(x)	(iswalnum((x)) || (x) == L'_')
+
+/*
+ * Processes a line comparing it with the specified patterns.  Each pattern
+ * is looped to be compared along with the full string, saving each and every
+ * match, which is necessary to colorize the output and to count the
+ * matches.  The matching lines are passed to printline() to display the
+ * appropriate output.
+ */
+static int
+procline(struct str *l, int nottext)
+{
+	regmatch_t matches[MAX_LINE_MATCHES];
+	regmatch_t pmatch;
+	size_t st = 0;
+	unsigned int i;
+	int c = 0, m = 0, r = 0;
+
+	/* Loop to process the whole line */
+	while (st <= l->len) {
+		pmatch.rm_so = st;
+		pmatch.rm_eo = l->len;
+
+		/* Loop to compare with all the patterns */
+		for (i = 0; i < patterns; i++) {
+/*
+ * XXX: grep_search() is a workaround for speed up and should be
+ * removed in the future.  See fastgrep.c.
+ */
+			if (fg_pattern[i].pattern) {
+				r = grep_search(&fg_pattern[i],
+				    (unsigned char *)l->dat,
+				    l->len, &pmatch);
+				r = (r == 0) ? 0 : REG_NOMATCH;
+				st = pmatch.rm_eo;
+			} else {
+				r = regexec(&r_pattern[i], l->dat, 1,
+				    &pmatch, eflags);
+				r = (r == 0) ? 0 : REG_NOMATCH;
+				st = pmatch.rm_eo;
+			}
+			if (r == REG_NOMATCH)
+				continue;
+			/* Check for full match */
+			if (xflag &&
+			    (pmatch.rm_so != 0 ||
+			     (size_t)pmatch.rm_eo != l->len))
+				continue;
+			/* Check for whole word match */
+			if (fg_pattern[i].word && pmatch.rm_so != 0) {
+				wint_t wbegin, wend;
+
+				wbegin = wend = L' ';
+				if (pmatch.rm_so != 0 &&
+				    sscanf(&l->dat[pmatch.rm_so - 1],
+				    "%lc", &wbegin) != 1)
+					continue;
+				if ((size_t)pmatch.rm_eo != l->len &&
+				    sscanf(&l->dat[pmatch.rm_eo],
+				    "%lc", &wend) != 1)
+					continue;
+				if (iswword(wbegin) || iswword(wend))
+					continue;
+			}
+			c = 1;
+			if (m < MAX_LINE_MATCHES)
+				matches[m++] = pmatch;
+			/* matches - skip further patterns */
+			if ((color != NULL && !oflag) || qflag || lflag)
+				break;
+		}
+
+		if (vflag) {
+			c = !c;
+			break;
+		}
+		/* One pass if we are not recording matches */
+		if ((color != NULL && !oflag) || qflag || lflag)
+			break;
+
+		if (st == (size_t)pmatch.rm_so)
+			break; 	/* No matches */
+	}
+
+	if (c && binbehave == BINFILE_BIN && nottext)
+		return (c); /* Binary file */
+
+	/* Dealing with the context */
+	if ((tail || c) && !cflag && !qflag && !lflag && !Lflag) {
+		if (c) {
+			if ((Aflag || Bflag) && !first_global &&
+			    (first || since_printed > Bflag))
+				printf("--\n");
+			tail = Aflag;
+			if (Bflag > 0)
+				printqueue();
+			printline(l, ':', matches, m);
+		} else {
+			printline(l, '-', matches, m);
+			tail--;
+		}
+		first = false;
+		first_global = false;
+		since_printed = 0;
+	} else {
+		if (Bflag)
+			enqueue(l);
+		since_printed++;
+	}
+	return (c);
+}
+
+/*
+ * Safe malloc() for internal use.
+ */
+void *
+grep_malloc(size_t size)
+{
+	void *ptr;
+
+	if ((ptr = malloc(size)) == NULL)
+		err(2, "malloc");
+	return (ptr);
+}
+
+/*
+ * Safe calloc() for internal use.
+ */
+void *
+grep_calloc(size_t nmemb, size_t size)
+{
+	void *ptr;
+
+	if ((ptr = calloc(nmemb, size)) == NULL)
+		err(2, "calloc");
+	return (ptr);
+}
+
+/*
+ * Safe realloc() for internal use.
+ */
+void *
+grep_realloc(void *ptr, size_t size)
+{
+
+	if ((ptr = realloc(ptr, size)) == NULL)
+		err(2, "realloc");
+	return (ptr);
+}
+
+/*
+ * Safe strdup() for internal use.
+ */
+char *
+grep_strdup(const char *str)
+{
+	char *ret;
+
+	if ((ret = strdup(str)) == NULL)
+		err(2, "strdup");
+	return (ret);
+}
+
+/*
+ * Prints a matching line according to the command line options.
+ */
+void
+printline(struct str *line, int sep, regmatch_t *matches, int m)
+{
+	size_t a = 0;
+	int i, n = 0;
+
+	if (!hflag) {
+		if (nullflag == 0)
+			fputs(line->file, stdout);
+		else {
+			printf("%s", line->file);
+			putchar(0);
+		}
+		++n;
+	}
+	if (nflag) {
+		if (n > 0)
+			putchar(sep);
+		printf("%d", line->line_no);
+		++n;
+	}
+	if (bflag) {
+		if (n > 0)
+			putchar(sep);
+		printf("%lld", (long long)line->off);
+		++n;
+	}
+	if (n)
+		putchar(sep);
+	/* --color and -o */
+	if ((oflag || color) && m > 0) {
+		for (i = 0; i < m; i++) {
+			if (!oflag)
+				fwrite(line->dat + a, matches[i].rm_so - a, 1,
+				    stdout);
+			if (color)
+				fprintf(stdout, "\33[%sm\33[K", color);
+
+				fwrite(line->dat + matches[i].rm_so,
+				    matches[i].rm_eo - matches[i].rm_so, 1,
+				    stdout);
+			if (color)
+				fprintf(stdout, "\33[m\33[K");
+			a = matches[i].rm_eo;
+			if (oflag)
+				putchar('\n');
+		}
+		if (!oflag) {
+			if (line->len - a > 0)
+				fwrite(line->dat + a, line->len - a, 1, stdout);
+			putchar(line_sep);
+		}
+	} else {
+		fwrite(line->dat, line->len, 1, stdout);
+		putchar(line_sep);
+	}
+}
diff --git a/toolbox/mount.c b/toolbox/mount.c
index 27cf3c9..b7adce2 100644
--- a/toolbox/mount.c
+++ b/toolbox/mount.c
@@ -49,12 +49,17 @@
 	{ "exec",	MS_NOEXEC,	0,		MS_NOEXEC	},
 	{ "move",	MS_TYPE,	MS_MOVE,	0		},
 	{ "recurse",	MS_REC,		MS_REC,		0		},
+	{ "rec",	MS_REC,		MS_REC,		0		},
 	{ "remount",	MS_TYPE,	MS_REMOUNT,	0		},
 	{ "ro",		MS_RDONLY,	MS_RDONLY,	0		},
 	{ "rw",		MS_RDONLY,	0,		MS_RDONLY	},
 	{ "suid",	MS_NOSUID,	0,		MS_NOSUID	},
 	{ "sync",	MS_SYNCHRONOUS,	MS_SYNCHRONOUS,	0		},
 	{ "verbose",	MS_VERBOSE,	MS_VERBOSE,	0		},
+	{ "unbindable",	MS_UNBINDABLE,	MS_UNBINDABLE,	0		},
+	{ "private",	MS_PRIVATE,	MS_PRIVATE,	0		},
+	{ "slave",	MS_SLAVE,	MS_SLAVE,	0		},
+	{ "shared",	MS_SHARED,	MS_SHARED,	0		},
 };
 
 static void add_extra_option(struct extra_opts *extra, char *s)