diff --git a/libc/Android.mk b/libc/Android.mk
index 9d7dd3d..7356e3d 100644
--- a/libc/Android.mk
+++ b/libc/Android.mk
@@ -240,6 +240,8 @@
 	inet/inet_ntoa.c \
 	inet/inet_ntop.c \
 	inet/inet_pton.c \
+	inet/ether_aton.c \
+	inet/ether_ntoa.c \
 	tzcode/asctime.c \
 	tzcode/difftime.c \
 	tzcode/localtime.c \
@@ -364,6 +366,7 @@
 # can set breakpoints in them without messing
 # up any thumb code.
 libc_common_src_files += \
+	bionic/pthread-atfork.c.arm \
 	bionic/pthread-rwlocks.c.arm \
 	bionic/pthread-timers.c.arm \
 	bionic/ptrace.c.arm
@@ -401,6 +404,7 @@
 	arch-x86/string/strcmp_wrapper.S \
 	arch-x86/string/strncmp_wrapper.S \
 	arch-x86/string/strlen.S \
+	bionic/pthread-atfork.c \
 	bionic/pthread-rwlocks.c \
 	bionic/pthread-timers.c \
 	bionic/ptrace.c
@@ -440,6 +444,7 @@
 	string/strncmp.c \
 	string/memcmp.c \
 	string/strlen.c \
+	bionic/pthread-atfork.c \
 	bionic/pthread-rwlocks.c \
 	bionic/pthread-timers.c \
 	bionic/ptrace.c \
@@ -494,13 +499,7 @@
     libc_common_cflags += -DHAVE_ARM_TLS_REGISTER
   endif
 else # !arm
-  ifeq ($(TARGET_ARCH),x86)
-    libc_crt_target_cflags := -m32
-
-    # Enable recent IA friendly memory routines (such as for Atom)
-    # These will not work on the earlier x86 machines
-    libc_common_cflags += -mtune=i686 -DUSE_SSSE3 -DUSE_SSE2
-  endif # x86
+  libc_crt_target_cflags :=
 endif # !arm
 
 # Define ANDROID_SMP appropriately.
@@ -522,6 +521,10 @@
 		$(LOCAL_PATH)/string  \
 		$(LOCAL_PATH)/stdio
 
+# Needed to access private/__dso_handle.S from
+# crtbegin_xxx.S and crtend_xxx.S
+#
+libc_crt_target_cflags += -I$(LOCAL_PATH)/private
 
 # Define the libc run-time (crt) support object files that must be built,
 # which are needed to build all other objects (shared/static libs and
@@ -702,6 +705,7 @@
 LOCAL_SHARED_LIBRARIES := libc
 LOCAL_WHOLE_STATIC_LIBRARIES := libc_common
 LOCAL_SYSTEM_SHARED_LIBRARIES :=
+LOCAL_ALLOW_UNDEFINED_SYMBOLS := true
 # Don't prelink
 LOCAL_PRELINK_MODULE := false
 # Don't install on release build
diff --git a/libc/SYSCALLS.TXT b/libc/SYSCALLS.TXT
index 935639e..1565f29 100644
--- a/libc/SYSCALLS.TXT
+++ b/libc/SYSCALLS.TXT
@@ -262,3 +262,5 @@
 # ARM-specific ARM_NR_BASE == 0x0f0000 == 983040
 int     __set_tls:ARM_set_tls(void*)                                 983045,-1
 int     cacheflush:ARM_cacheflush(long start, long end, long flags)  983042,-1
+
+int     eventfd(int count, int flags) 351,323
diff --git a/libc/arch-arm/include/endian.h b/libc/arch-arm/include/endian.h
index 04204ed..6de0889 100644
--- a/libc/arch-arm/include/endian.h
+++ b/libc/arch-arm/include/endian.h
@@ -1,10 +1,89 @@
 /*	$OpenBSD: endian.h,v 1.3 2005/12/13 00:35:23 millert Exp $	*/
 
+/*
+ * Copyright (C) 2010 The Android Open Source Project
+ * All rights reserved.
+ *
+ * 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.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS 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
+ * COPYRIGHT OWNER 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.
+ */
+
+#ifndef _ARM_ENDIAN_H_
+#define _ARM_ENDIAN_H_
+
+#ifdef __GNUC__
+
+/*
+ * REV and REV16 weren't available on ARM5 or ARM4.
+ * We don't include <machine/cpu-features.h> because it pollutes the
+ * namespace with macros like PLD.
+ */
+#if !defined __ARM_ARCH_5__ && !defined __ARM_ARCH_5T__ && \
+    !defined __ARM_ARCH_5TE__ && !defined __ARM_ARCH_5TEJ__ && \
+    !defined __ARM_ARCH_4T__ && !defined __ARM_ARCH_4__
+
+/* According to RealView Assembler User's Guide, REV and REV16 are available
+ * in Thumb code and 16-bit instructions when used in Thumb-2 code.
+ *
+ * REV Rd, Rm
+ *   Rd and Rm must both be Lo registers.
+ *
+ * REV16 Rd, Rm
+ *   Rd and Rm must both be Lo registers.
+ *
+ * The +l constraint takes care of this without constraining us in ARM mode.
+ */
+#define __swap16md(x) ({                                        \
+    register u_int16_t _x = (x);                                \
+    __asm volatile ("rev16 %0, %0" : "+l" (_x));                \
+    _x;                                                         \
+})
+
+#define __swap32md(x) ({                                        \
+    register u_int32_t _x = (x);                                \
+    __asm volatile ("rev %0, %0" : "+l" (_x));                  \
+    _x;                                                         \
+})
+
+#define __swap64md(x) ({                                        \
+    u_int64_t _swap64md_x = (x);                                \
+    (u_int64_t) __swap32md(_swap64md_x >> 32) |                 \
+        (u_int64_t) __swap32md(_swap64md_x & 0xffffffff) << 32; \
+})
+
+/* Tell sys/endian.h we have MD variants of the swap macros.  */
+#define MD_SWAP
+
+#endif  /* __ARM_ARCH__ */
+#endif  /* __GNUC__ */
+
 #ifdef __ARMEB__
 #define _BYTE_ORDER _BIG_ENDIAN
 #else
 #define _BYTE_ORDER _LITTLE_ENDIAN
 #endif
-#define	__STRICT_ALIGNMENT
+#define __STRICT_ALIGNMENT
 #include <sys/types.h>
 #include <sys/endian.h>
+
+#endif  /* !_ARM_ENDIAN_H_ */
diff --git a/libc/arch-arm/syscalls.mk b/libc/arch-arm/syscalls.mk
index c364d1c..087c965 100644
--- a/libc/arch-arm/syscalls.mk
+++ b/libc/arch-arm/syscalls.mk
@@ -174,3 +174,4 @@
 syscall_src += arch-arm/syscalls/poll.S
 syscall_src += arch-arm/syscalls/__set_tls.S
 syscall_src += arch-arm/syscalls/cacheflush.S
+syscall_src += arch-arm/syscalls/eventfd.S
diff --git a/libc/arch-arm/syscalls/eventfd.S b/libc/arch-arm/syscalls/eventfd.S
new file mode 100644
index 0000000..fb0912f
--- /dev/null
+++ b/libc/arch-arm/syscalls/eventfd.S
@@ -0,0 +1,19 @@
+/* autogenerated by gensyscalls.py */
+#include <sys/linux-syscalls.h>
+
+    .text
+    .type eventfd, #function
+    .globl eventfd
+    .align 4
+    .fnstart
+
+eventfd:
+    .save   {r4, r7}
+    stmfd   sp!, {r4, r7}
+    ldr     r7, =__NR_eventfd
+    swi     #0
+    ldmfd   sp!, {r4, r7}
+    movs    r0, r0
+    bxpl    lr
+    b       __set_syscall_errno
+    .fnend
diff --git a/libc/arch-x86/bionic/clone.S b/libc/arch-x86/bionic/clone.S
index 3b50cc3..44fce1e 100644
--- a/libc/arch-x86/bionic/clone.S
+++ b/libc/arch-x86/bionic/clone.S
@@ -52,4 +52,4 @@
 /* XXX: TODO: Add __bionic_clone here
  *            See bionic/bionic_clone.c and arch-arm/bionic/clone.S
  *            for more details...
- */
\ No newline at end of file
+ */
diff --git a/libc/bionic/fork.c b/libc/bionic/fork.c
index 79b8fff..0eedb01 100644
--- a/libc/bionic/fork.c
+++ b/libc/bionic/fork.c
@@ -41,9 +41,12 @@
      * of error, or in the parent process
      */
     __timer_table_start_stop(1);
+    __bionic_atfork_run_prepare();
+
     ret = __fork();
     if (ret != 0) {  /* not a child process */
         __timer_table_start_stop(0);
+        __bionic_atfork_run_parent();
     } else {
         /*
          * Newly created process must update cpu accounting.
@@ -52,6 +55,7 @@
          * as a parameter.
          */
         cpuacct_add(getuid());
+        __bionic_atfork_run_child();
     }
     return ret;
 }
diff --git a/libc/bionic/libc_init_common.c b/libc/bionic/libc_init_common.c
index d78d673..dd6e027 100644
--- a/libc/bionic/libc_init_common.c
+++ b/libc/bionic/libc_init_common.c
@@ -62,7 +62,7 @@
     static pthread_internal_t  thread;
     static void*               tls_area[BIONIC_TLS_SLOTS];
 
-    /* setup pthread runtime and maint thread descriptor */
+    /* setup pthread runtime and main thread descriptor */
     unsigned stacktop = (__get_sp() & ~(PAGE_SIZE - 1)) + PAGE_SIZE;
     unsigned stacksize = 128 * 1024;
     unsigned stackbottom = stacktop - stacksize;
diff --git a/libc/bionic/libc_init_dynamic.c b/libc/bionic/libc_init_dynamic.c
index 682ebcf..97e80ea 100644
--- a/libc/bionic/libc_init_dynamic.c
+++ b/libc/bionic/libc_init_dynamic.c
@@ -61,7 +61,7 @@
 
 void __libc_prenit(void)
 {
-    /* Read the ELF data pointer form a special slot of the
+    /* Read the ELF data pointer from a special slot of the
      * TLS area, then call __libc_init_common with it.
      *
      * Note that:
diff --git a/libc/bionic/pthread-atfork.c b/libc/bionic/pthread-atfork.c
new file mode 100644
index 0000000..3a5189d
--- /dev/null
+++ b/libc/bionic/pthread-atfork.c
@@ -0,0 +1,123 @@
+/*
+ * Copyright (C) 2008 The Android Open Source Project
+ * All rights reserved.
+ *
+ * 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.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS 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
+ * COPYRIGHT OWNER 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 <stdlib.h>
+#include <errno.h>
+#include <pthread.h>
+#include <sys/queue.h>
+
+static pthread_mutex_t handler_mutex = PTHREAD_RECURSIVE_MUTEX_INITIALIZER;
+
+struct atfork_t
+{
+    CIRCLEQ_ENTRY(atfork_t) entries;
+
+    void (*prepare)(void);
+    void (*child)(void);
+    void (*parent)(void);
+};
+static CIRCLEQ_HEAD(atfork_head_t, atfork_t) atfork_head = \
+    CIRCLEQ_HEAD_INITIALIZER(atfork_head);
+
+void __bionic_atfork_run_prepare()
+{
+    struct atfork_t *cursor;
+
+    /* We will lock this here, and unlock it in the parent and child functions.
+     * This ensures that nobody can modify the handler array between the calls
+     * to the prepare and parent/child handlers.
+     *
+     * TODO: If a handler mucks with the list, it could cause problems.  Right
+     *       now it's ok because all they can do is add new items to the end
+     *       of the list, but if/when we implement cleanup in dlclose() things
+     *       will get more interesting...
+     */
+    pthread_mutex_lock(&handler_mutex);
+
+    /* Call pthread_atfork() prepare handlers.  Posix states that the prepare
+     * handlers should be called in the reverse order of the parent/child
+     * handlers, so we iterate backwards.
+     */
+    for (cursor = atfork_head.cqh_last;
+         cursor != (void*)&atfork_head;
+         cursor = cursor->entries.cqe_prev) {
+        if (cursor->prepare != NULL) {
+            cursor->prepare();
+        }
+    }
+}
+
+void __bionic_atfork_run_child()
+{
+    struct atfork_t *cursor;
+
+    /* Call pthread_atfork() child handlers */
+    for (cursor = atfork_head.cqh_first;
+         cursor != (void*)&atfork_head;
+         cursor = cursor->entries.cqe_next) {
+        if (cursor->child != NULL) {
+            cursor->child();
+        }
+    }
+
+    pthread_mutex_unlock(&handler_mutex);
+}
+
+void __bionic_atfork_run_parent()
+{
+    struct atfork_t *cursor;
+
+    /* Call pthread_atfork() parent handlers */
+    for (cursor = atfork_head.cqh_first;
+         cursor != (void*)&atfork_head;
+         cursor = cursor->entries.cqe_next) {
+        if (cursor->parent != NULL) {
+            cursor->parent();
+        }
+    }
+
+    pthread_mutex_unlock(&handler_mutex);
+}
+
+int pthread_atfork(void (*prepare)(void), void (*parent)(void), void(*child)(void))
+{
+    struct atfork_t *entry = malloc(sizeof(struct atfork_t));
+
+    if (entry == NULL) {
+        return ENOMEM;
+    }
+
+    entry->prepare = prepare;
+    entry->parent = parent;
+    entry->child = child;
+
+    pthread_mutex_lock(&handler_mutex);
+    CIRCLEQ_INSERT_TAIL(&atfork_head, entry, entries);
+    pthread_mutex_unlock(&handler_mutex);
+
+    return 0;
+}
diff --git a/libc/bionic/pthread_internal.h b/libc/bionic/pthread_internal.h
index eb4e80c..655b8f3 100644
--- a/libc/bionic/pthread_internal.h
+++ b/libc/bionic/pthread_internal.h
@@ -109,6 +109,9 @@
 
 /* needed by fork.c */
 extern void __timer_table_start_stop(int  stop);
+extern void __bionic_atfork_run_prepare();
+extern void __bionic_atfork_run_child();
+extern void __bionic_atfork_run_parent();
 
 __END_DECLS
 
diff --git a/libc/docs/CHANGES.TXT b/libc/docs/CHANGES.TXT
index 4d094d0..0eab879 100644
--- a/libc/docs/CHANGES.TXT
+++ b/libc/docs/CHANGES.TXT
@@ -70,6 +70,8 @@
 - <sys/vfs.h>: fixed implementation of fstatfs() (also fixes fpathconf()
   which uses it).
 
+- Added an implementation of pthread_atfork()
+
 - <dlfcn.h>: fixed dlopen() implementation to support dlopen(NULL, ...).
   This allows one to look at the dynamic symbols exported by an executable.
 
diff --git a/libc/include/byteswap.h b/libc/include/byteswap.h
index 16d2ad4..74b0e91 100644
--- a/libc/include/byteswap.h
+++ b/libc/include/byteswap.h
@@ -28,7 +28,8 @@
 #ifndef _BYTESWAP_H_
 #define _BYTESWAP_H_
 
-#include <sys/endian.h>
+/* endian.h rather than sys/endian.h so we get the machine-specific file. */
+#include <endian.h>
 
 #define  bswap_16(x)   swap16(x)
 #define  bswap_32(x)   swap32(x)
diff --git a/libc/include/net/if_ether.h b/libc/include/net/if_ether.h
index 121f9ac..8daa16b 100644
--- a/libc/include/net/if_ether.h
+++ b/libc/include/net/if_ether.h
@@ -34,6 +34,8 @@
 #ifndef _NET_IF_ETHER_H_
 #define _NET_IF_ETHER_H_
 
+#include <sys/types.h>
+
 #ifdef _KERNEL
 #ifdef _KERNEL_OPT
 #include "opt_mbuftrace.h"
diff --git a/libc/include/pthread.h b/libc/include/pthread.h
index 99e747a..a43e47c 100644
--- a/libc/include/pthread.h
+++ b/libc/include/pthread.h
@@ -268,6 +268,8 @@
 
 int pthread_setname_np(pthread_t thid, const char *thname);
 
+int pthread_atfork(void (*prepare)(void), void (*parent)(void), void(*child)(void));
+
 typedef void  (*__pthread_cleanup_func_t)(void*);
 
 typedef struct __pthread_cleanup_t {
diff --git a/libc/include/sys/eventfd.h b/libc/include/sys/eventfd.h
new file mode 100644
index 0000000..0e142fd
--- /dev/null
+++ b/libc/include/sys/eventfd.h
@@ -0,0 +1,14 @@
+#ifndef _SYS_EVENTFD_H_
+#define _SYS_EVENTFD_H_
+
+#include <sys/cdefs.h>
+#include <asm/unistd.h>
+#include <asm/termbits.h>
+
+__BEGIN_DECLS
+
+extern int eventfd(int count, int flags);
+
+__END_DECLS
+
+#endif /*  _SYS_EVENTFD_H_ */
diff --git a/libc/include/sys/linux-syscalls.h b/libc/include/sys/linux-syscalls.h
index b90f20d..69f421a 100644
--- a/libc/include/sys/linux-syscalls.h
+++ b/libc/include/sys/linux-syscalls.h
@@ -184,6 +184,7 @@
 #define __NR_inotify_rm_watch             (__NR_SYSCALL_BASE + 318)
 #define __NR_ARM_set_tls                  (__NR_SYSCALL_BASE + 983045)
 #define __NR_ARM_cacheflush               (__NR_SYSCALL_BASE + 983042)
+#define __NR_eventfd                      (__NR_SYSCALL_BASE + 351)
 #endif
 
 #ifdef __i386__
@@ -225,6 +226,7 @@
 #define __NR_inotify_init                 (__NR_SYSCALL_BASE + 291)
 #define __NR_inotify_add_watch            (__NR_SYSCALL_BASE + 292)
 #define __NR_inotify_rm_watch             (__NR_SYSCALL_BASE + 293)
+#define __NR_eventfd                      (__NR_SYSCALL_BASE + 323)
 #endif
 
 #if defined(__SH3__) || defined(__SH4__) 
@@ -282,6 +284,7 @@
 #define __NR_inotify_init                 (__NR_SYSCALL_BASE + 290)
 #define __NR_inotify_add_watch            (__NR_SYSCALL_BASE + 291)
 #define __NR_inotify_rm_watch             (__NR_SYSCALL_BASE + 292)
+#define __NR_eventfd                      (__NR_SYSCALL_BASE + 323)
 #endif
 
 #endif
diff --git a/libc/include/sys/linux-unistd.h b/libc/include/sys/linux-unistd.h
index a1905b3..b5cc82c 100644
--- a/libc/include/sys/linux-unistd.h
+++ b/libc/include/sys/linux-unistd.h
@@ -204,6 +204,7 @@
 int              poll (struct pollfd *, unsigned int, long);
 int              __set_tls (void*);
 int              cacheflush (long start, long end, long flags);
+int              eventfd (int count, int flags);
 #ifdef __cplusplus
 }
 #endif
diff --git a/libc/inet/ether_aton.c b/libc/inet/ether_aton.c
new file mode 100644
index 0000000..6540c07
--- /dev/null
+++ b/libc/inet/ether_aton.c
@@ -0,0 +1,89 @@
+/*
+ * Copyright (C) 2010 The Android Open Source Project
+ * All rights reserved.
+ *
+ * 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.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS 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
+ * COPYRIGHT OWNER 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 <stdio.h>
+#include <stdlib.h>
+#include <sys/types.h>
+#include <net/if_ether.h>
+#include <ctype.h>
+
+static inline int
+xdigit (char c) {
+    unsigned d;
+    d = (unsigned)(c-'0');
+    if (d < 10) return (int)d;
+    d = (unsigned)(c-'a');
+    if (d < 6) return (int)(10+d);
+    d = (unsigned)(c-'A');
+    if (d < 6) return (int)(10+d);
+    return -1;
+}
+
+/*
+ * Convert Ethernet address in the standard hex-digits-and-colons to binary
+ * representation.
+ * Re-entrant version (GNU extensions)
+ */
+struct ether_addr *
+ether_aton_r (const char *asc, struct ether_addr * addr)
+{
+    int i, val0, val1;
+    for (i = 0; i < ETHER_ADDR_LEN; ++i) {
+        val0 = xdigit(*asc);
+        asc++;
+        if (val0 < 0)
+            return NULL;
+
+        val1 = xdigit(*asc);
+        asc++;
+        if (val1 < 0)
+            return NULL;
+
+        addr->ether_addr_octet[i] = (u_int8_t)((val0 << 4) + val1);
+
+        if (i < ETHER_ADDR_LEN - 1) {
+            if (*asc != ':')
+                return NULL;
+            asc++;
+        }
+    }
+    if (*asc != '\0')
+        return NULL;
+    return addr;
+}
+
+/*
+ * Convert Ethernet address in the standard hex-digits-and-colons to binary
+ * representation.
+ */
+struct ether_addr *
+ether_aton (const char *asc)
+{
+    static struct ether_addr addr;
+    return ether_aton_r(asc, &addr);
+}
diff --git a/libc/inet/ether_ntoa.c b/libc/inet/ether_ntoa.c
new file mode 100644
index 0000000..f56e48b
--- /dev/null
+++ b/libc/inet/ether_ntoa.c
@@ -0,0 +1,55 @@
+/*
+ * Copyright (C) 2010 The Android Open Source Project
+ * All rights reserved.
+ *
+ * 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.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS 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
+ * COPYRIGHT OWNER 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 <stdio.h>
+#include <sys/types.h>
+#include <net/if_ether.h>
+
+/*
+ * Convert Ethernet address to standard hex-digits-and-colons printable form.
+ * Re-entrant version (GNU extensions).
+ */
+char *
+ether_ntoa_r (const struct ether_addr *addr, char * buf)
+{
+    snprintf(buf, 18, "%02x:%02x:%02x:%02x:%02x:%02x",
+            addr->ether_addr_octet[0], addr->ether_addr_octet[1],
+            addr->ether_addr_octet[2], addr->ether_addr_octet[3],
+            addr->ether_addr_octet[4], addr->ether_addr_octet[5]);
+    return buf;
+}
+
+/*
+ * Convert Ethernet address to standard hex-digits-and-colons printable form.
+ */
+char *
+ether_ntoa (const struct ether_addr *addr)
+{
+    static char buf[18];
+    return ether_ntoa_r(addr, buf);
+}
diff --git a/libc/kernel/common/linux/ipv6_route.h b/libc/kernel/common/linux/ipv6_route.h
new file mode 100644
index 0000000..3791e87
--- /dev/null
+++ b/libc/kernel/common/linux/ipv6_route.h
@@ -0,0 +1,55 @@
+/****************************************************************************
+ ****************************************************************************
+ ***
+ ***   This header was automatically generated from a Linux kernel header
+ ***   of the same name, to make information necessary for userspace to
+ ***   call into the kernel available to libc.  It contains only constants,
+ ***   structures, and macros generated from the original header, and thus,
+ ***   contains no copyrightable information.
+ ***
+ ****************************************************************************
+ ****************************************************************************/
+#ifndef _LINUX_IPV6_ROUTE_H
+#define _LINUX_IPV6_ROUTE_H
+
+#include <linux/types.h>
+
+#define RTF_DEFAULT 0x00010000  
+#define RTF_ALLONLINK 0x00020000  
+#define RTF_ADDRCONF 0x00040000  
+#define RTF_PREFIX_RT 0x00080000  
+#define RTF_ANYCAST 0x00100000  
+
+#define RTF_NONEXTHOP 0x00200000  
+#define RTF_EXPIRES 0x00400000
+
+#define RTF_ROUTEINFO 0x00800000  
+
+#define RTF_CACHE 0x01000000  
+#define RTF_FLOW 0x02000000  
+#define RTF_POLICY 0x04000000  
+
+#define RTF_PREF(pref) ((pref) << 27)
+#define RTF_PREF_MASK 0x18000000
+
+#define RTF_LOCAL 0x80000000
+
+struct in6_rtmsg {
+ struct in6_addr rtmsg_dst;
+ struct in6_addr rtmsg_src;
+ struct in6_addr rtmsg_gateway;
+ __u32 rtmsg_type;
+ __u16 rtmsg_dst_len;
+ __u16 rtmsg_src_len;
+ __u32 rtmsg_metric;
+ unsigned long rtmsg_info;
+ __u32 rtmsg_flags;
+ int rtmsg_ifindex;
+};
+
+#define RTMSG_NEWDEVICE 0x11
+#define RTMSG_DELDEVICE 0x12
+#define RTMSG_NEWROUTE 0x21
+#define RTMSG_DELROUTE 0x22
+
+#endif
diff --git a/libc/kernel/common/linux/netfilter_ipv6/ip6_tables.h b/libc/kernel/common/linux/netfilter_ipv6/ip6_tables.h
index 1687e4f..d76a529 100644
--- a/libc/kernel/common/linux/netfilter_ipv6/ip6_tables.h
+++ b/libc/kernel/common/linux/netfilter_ipv6/ip6_tables.h
@@ -173,6 +173,15 @@
 
 #define IP6T_ERROR_TARGET XT_ERROR_TARGET
 
+static __inline__ struct ip6t_entry_target *
+ip6t_get_target(struct ip6t_entry *e)
+{
+ return (void *)e + e->target_offset;
+}
+
 #define IP6T_MATCH_ITERATE(e, fn, args...)  ({   unsigned int __i;   int __ret = 0;   struct ip6t_entry_match *__m;     for (__i = sizeof(struct ip6t_entry);   __i < (e)->target_offset;   __i += __m->u.match_size) {   __m = (void *)(e) + __i;     __ret = fn(__m , ## args);   if (__ret != 0)   break;   }   __ret;  })
+
 #define IP6T_ENTRY_ITERATE(entries, size, fn, args...)  ({   unsigned int __i;   int __ret = 0;   struct ip6t_entry *__e;     for (__i = 0; __i < (size); __i += __e->next_offset) {   __e = (void *)(entries) + __i;     __ret = fn(__e , ## args);   if (__ret != 0)   break;   }   __ret;  })
+
 #endif
+
diff --git a/libc/kernel/tools/defaults.py b/libc/kernel/tools/defaults.py
index 4227de7..b35f72b 100644
--- a/libc/kernel/tools/defaults.py
+++ b/libc/kernel/tools/defaults.py
@@ -71,6 +71,7 @@
           "__cmsg_nxthdr",                    # linux/socket.h
           "cmsg_nxthdr",                      # linux/socket.h
           "ipt_get_target",
+          "ip6t_get_target",
         ]
     )