Merge "Don't mark realloc with __attribute__((malloc))"
diff --git a/libc/Android.mk b/libc/Android.mk
index c507457..f90520e 100644
--- a/libc/Android.mk
+++ b/libc/Android.mk
@@ -141,7 +141,9 @@
stdio/wbuf.c \
stdio/wsetup.c \
stdio/__snprintf_chk.c \
+ stdio/__sprintf_chk.c \
stdio/__vsnprintf_chk.c \
+ stdio/__vsprintf_chk.c \
stdlib/_rand48.c \
stdlib/assert.c \
stdlib/atexit.c \
diff --git a/libc/include/stdio.h b/libc/include/stdio.h
index cc3270d..18b19bf 100644
--- a/libc/include/stdio.h
+++ b/libc/include/stdio.h
@@ -231,12 +231,16 @@
int fgetpos(FILE *, fpos_t *);
char *fgets(char *, int, FILE *);
FILE *fopen(const char *, const char *);
-int fprintf(FILE *, const char *, ...);
+int fprintf(FILE *, const char *, ...)
+ __attribute__((__format__ (printf, 2, 3)))
+ __attribute__((__nonnull__ (2)));
int fputc(int, FILE *);
int fputs(const char *, FILE *);
size_t fread(void *, size_t, size_t, FILE *);
FILE *freopen(const char *, const char *, FILE *);
-int fscanf(FILE *, const char *, ...);
+int fscanf(FILE *, const char *, ...)
+ __attribute__ ((__format__ (scanf, 2, 3)))
+ __attribute__ ((__nonnull__ (2)));
int fseek(FILE *, long, int);
int fseeko(FILE *, off_t, int);
int fsetpos(FILE *, const fpos_t *);
@@ -253,24 +257,38 @@
extern char *sys_errlist[];
#endif
void perror(const char *);
-int printf(const char *, ...);
+int printf(const char *, ...)
+ __attribute__((__format__ (printf, 1, 2)))
+ __attribute__((__nonnull__ (1)));
int putc(int, FILE *);
int putchar(int);
int puts(const char *);
int remove(const char *);
int rename(const char *, const char *);
void rewind(FILE *);
-int scanf(const char *, ...);
+int scanf(const char *, ...)
+ __attribute__ ((__format__ (scanf, 1, 2)))
+ __attribute__ ((__nonnull__ (1)));
void setbuf(FILE *, char *);
int setvbuf(FILE *, char *, int, size_t);
-int sprintf(char *, const char *, ...);
-int sscanf(const char *, const char *, ...);
+int sprintf(char *, const char *, ...)
+ __attribute__((__format__ (printf, 2, 3)))
+ __attribute__((__nonnull__ (2)));
+int sscanf(const char *, const char *, ...)
+ __attribute__ ((__format__ (scanf, 2, 3)))
+ __attribute__ ((__nonnull__ (2)));
FILE *tmpfile(void);
char *tmpnam(char *);
int ungetc(int, FILE *);
-int vfprintf(FILE *, const char *, __va_list);
-int vprintf(const char *, __va_list);
-int vsprintf(char *, const char *, __va_list);
+int vfprintf(FILE *, const char *, __va_list)
+ __attribute__((__format__ (printf, 2, 0)))
+ __attribute__((__nonnull__ (2)));
+int vprintf(const char *, __va_list)
+ __attribute__((__format__ (printf, 1, 0)))
+ __attribute__((__nonnull__ (1)));
+int vsprintf(char *, const char *, __va_list)
+ __attribute__((__format__ (printf, 2, 0)))
+ __attribute__((__nonnull__ (2)));
#if __ISO_C_VISIBLE >= 1999 || __BSD_VISIBLE
int snprintf(char *, size_t, const char *, ...)
@@ -453,8 +471,12 @@
* #define fdprintf dprintf for compatibility
*/
__BEGIN_DECLS
-int fdprintf(int, const char*, ...);
-int vfdprintf(int, const char*, __va_list);
+int fdprintf(int, const char*, ...)
+ __attribute__((__format__ (printf, 2, 3)))
+ __attribute__((__nonnull__ (2)));
+int vfdprintf(int, const char*, __va_list)
+ __attribute__((__format__ (printf, 2, 0)))
+ __attribute__((__nonnull__ (2)));
__END_DECLS
#endif /* _GNU_SOURCE */
@@ -463,11 +485,22 @@
__BIONIC_FORTIFY_INLINE
__attribute__((__format__ (printf, 3, 0)))
__attribute__((__nonnull__ (3)))
-int vsnprintf(char *str, size_t size, const char *format, __va_list ap)
+int vsnprintf(char *dest, size_t size, const char *format, __va_list ap)
{
- return __builtin___vsnprintf_chk(str, size, 0, __builtin_object_size(str, 0), format, ap);
+ return __builtin___vsnprintf_chk(dest, size, 0,
+ __builtin_object_size(dest, 0), format, ap);
}
+__BIONIC_FORTIFY_INLINE
+__attribute__((__format__ (printf, 2, 0)))
+__attribute__((__nonnull__ (2)))
+int vsprintf(char *dest, const char *format, __va_list ap)
+{
+ return __builtin___vsprintf_chk(dest, 0,
+ __builtin_object_size(dest, 0), format, ap);
+}
+
+
# if !defined(__clang__)
/*
* Clang doesn't have support for __builtin_va_arg_pack()
@@ -479,7 +512,17 @@
__attribute__((__nonnull__ (3)))
int snprintf(char *str, size_t size, const char *format, ...)
{
- return __builtin___snprintf_chk(str, size, 0, __builtin_object_size(str, 0), format, __builtin_va_arg_pack());
+ return __builtin___snprintf_chk(str, size, 0,
+ __builtin_object_size(str, 0), format, __builtin_va_arg_pack());
+}
+
+__BIONIC_FORTIFY_INLINE
+__attribute__((__format__ (printf, 2, 3)))
+__attribute__((__nonnull__ (2)))
+int sprintf(char *dest, const char *format, ...)
+{
+ return __builtin___sprintf_chk(dest, 0,
+ __builtin_object_size(dest, 0), format, __builtin_va_arg_pack());
}
# endif /* !defined(__clang__) */
diff --git a/libc/kernel/common/linux/filter.h b/libc/kernel/common/linux/filter.h
index 613ee67..e5b2e95 100644
--- a/libc/kernel/common/linux/filter.h
+++ b/libc/kernel/common/linux/filter.h
@@ -23,94 +23,102 @@
/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
#define BPF_MAJOR_VERSION 1
#define BPF_MINOR_VERSION 1
-struct sock_filter
-{
-/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+struct sock_filter {
__u16 code;
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
__u8 jt;
__u8 jf;
__u32 k;
-/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
};
-struct sock_fprog
-{
- unsigned short len;
/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+struct sock_fprog {
+ unsigned short len;
struct sock_filter __user *filter;
};
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
#define BPF_CLASS(code) ((code) & 0x07)
#define BPF_LD 0x00
-/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
#define BPF_LDX 0x01
#define BPF_ST 0x02
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
#define BPF_STX 0x03
#define BPF_ALU 0x04
-/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
#define BPF_JMP 0x05
#define BPF_RET 0x06
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
#define BPF_MISC 0x07
#define BPF_SIZE(code) ((code) & 0x18)
-/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
#define BPF_W 0x00
#define BPF_H 0x08
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
#define BPF_B 0x10
#define BPF_MODE(code) ((code) & 0xe0)
-/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
#define BPF_IMM 0x00
#define BPF_ABS 0x20
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
#define BPF_IND 0x40
#define BPF_MEM 0x60
-/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
#define BPF_LEN 0x80
#define BPF_MSH 0xa0
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
#define BPF_OP(code) ((code) & 0xf0)
#define BPF_ADD 0x00
-/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
#define BPF_SUB 0x10
#define BPF_MUL 0x20
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
#define BPF_DIV 0x30
#define BPF_OR 0x40
-/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
#define BPF_AND 0x50
#define BPF_LSH 0x60
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
#define BPF_RSH 0x70
#define BPF_NEG 0x80
-/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
#define BPF_JA 0x00
#define BPF_JEQ 0x10
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
#define BPF_JGT 0x20
#define BPF_JGE 0x30
-/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
#define BPF_JSET 0x40
#define BPF_SRC(code) ((code) & 0x08)
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
#define BPF_K 0x00
#define BPF_X 0x08
-/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
#define BPF_RVAL(code) ((code) & 0x18)
#define BPF_A 0x10
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
#define BPF_MISCOP(code) ((code) & 0xf8)
#define BPF_TAX 0x00
-/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
#define BPF_TXA 0x80
#ifndef BPF_MAXINSNS
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
#define BPF_MAXINSNS 4096
#endif
-/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
#ifndef BPF_STMT
#define BPF_STMT(code, k) { (unsigned short)(code), 0, 0, k }
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
#endif
#ifndef BPF_JUMP
-/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
#define BPF_JUMP(code, k, jt, jf) { (unsigned short)(code), jt, jf, k }
#endif
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
#define BPF_MEMWORDS 16
#define SKF_AD_OFF (-0x1000)
-/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
#define SKF_AD_PROTOCOL 0
#define SKF_AD_PKTTYPE 4
-#define SKF_AD_IFINDEX 8
-#define SKF_AD_MAX 12
/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+#define SKF_AD_IFINDEX 8
+#define SKF_AD_NLATTR 12
+#define SKF_AD_NLATTR_NEST 16
+#define SKF_AD_MARK 20
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+#define SKF_AD_QUEUE 24
+#define SKF_AD_HATYPE 28
+#define SKF_AD_RXHASH 32
+#define SKF_AD_CPU 36
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+#define SKF_AD_ALU_XOR_X 40
+#define SKF_AD_MAX 44
#define SKF_NET_OFF (-0x100000)
#define SKF_LL_OFF (-0x200000)
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
#endif
diff --git a/libc/kernel/common/linux/prctl.h b/libc/kernel/common/linux/prctl.h
index 8906639..5e79143 100644
--- a/libc/kernel/common/linux/prctl.h
+++ b/libc/kernel/common/linux/prctl.h
@@ -64,5 +64,57 @@
#define PR_ENDIAN_BIG 0
#define PR_ENDIAN_LITTLE 1
#define PR_ENDIAN_PPC_LITTLE 2
-#endif
+#define PR_GET_SECCOMP 21
/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+#define PR_SET_SECCOMP 22
+#define PR_CAPBSET_READ 23
+#define PR_CAPBSET_DROP 24
+#define PR_GET_TSC 25
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+#define PR_SET_TSC 26
+#define PR_TSC_ENABLE 1
+#define PR_TSC_SIGSEGV 2
+#define PR_GET_SECUREBITS 27
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+#define PR_SET_SECUREBITS 28
+#define PR_SET_TIMERSLACK 29
+#define PR_GET_TIMERSLACK 30
+#define PR_TASK_PERF_EVENTS_DISABLE 31
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+#define PR_TASK_PERF_EVENTS_ENABLE 32
+#define PR_MCE_KILL 33
+#define PR_MCE_KILL_CLEAR 0
+#define PR_MCE_KILL_SET 1
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+#define PR_MCE_KILL_LATE 0
+#define PR_MCE_KILL_EARLY 1
+#define PR_MCE_KILL_DEFAULT 2
+#define PR_MCE_KILL_GET 34
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+#define PR_SET_MM 35
+#define PR_SET_MM_START_CODE 1
+#define PR_SET_MM_END_CODE 2
+#define PR_SET_MM_START_DATA 3
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+#define PR_SET_MM_END_DATA 4
+#define PR_SET_MM_START_STACK 5
+#define PR_SET_MM_START_BRK 6
+#define PR_SET_MM_BRK 7
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+#define PR_SET_MM_ARG_START 8
+#define PR_SET_MM_ARG_END 9
+#define PR_SET_MM_ENV_START 10
+#define PR_SET_MM_ENV_END 11
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+#define PR_SET_MM_AUXV 12
+#define PR_SET_MM_EXE_FILE 13
+#define PR_SET_PTRACER 0x59616d61
+#define PR_SET_PTRACER_ANY ((unsigned long)-1)
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+#define PR_SET_CHILD_SUBREAPER 36
+#define PR_GET_CHILD_SUBREAPER 37
+#define PR_SET_NO_NEW_PRIVS 38
+#define PR_GET_NO_NEW_PRIVS 39
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+#define PR_GET_TID_ADDRESS 40
+#endif
diff --git a/libc/kernel/common/linux/seccomp.h b/libc/kernel/common/linux/seccomp.h
new file mode 100644
index 0000000..82a6985
--- /dev/null
+++ b/libc/kernel/common/linux/seccomp.h
@@ -0,0 +1,44 @@
+/****************************************************************************
+ ****************************************************************************
+ ***
+ *** 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.
+ ***
+ *** To edit the content of this header, modify the corresponding
+ *** source file (e.g. under external/kernel-headers/original/) then
+ *** run bionic/libc/kernel/tools/update_all.py
+ ***
+ *** Any manual change here will be lost the next time this script will
+ *** be run. You've been warned!
+ ***
+ ****************************************************************************
+ ****************************************************************************/
+#ifndef _LINUX_SECCOMP_H
+#define _LINUX_SECCOMP_H
+#include <linux/compiler.h>
+#include <linux/types.h>
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+#define SECCOMP_MODE_DISABLED 0
+#define SECCOMP_MODE_STRICT 1
+#define SECCOMP_MODE_FILTER 2
+#define SECCOMP_RET_KILL 0x00000000U
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+#define SECCOMP_RET_TRAP 0x00030000U
+#define SECCOMP_RET_ERRNO 0x00050000U
+#define SECCOMP_RET_TRACE 0x7ff00000U
+#define SECCOMP_RET_ALLOW 0x7fff0000U
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+#define SECCOMP_RET_ACTION 0x7fff0000U
+#define SECCOMP_RET_DATA 0x0000ffffU
+struct seccomp_data {
+ int nr;
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+ __u32 arch;
+ __u64 instruction_pointer;
+ __u64 args[6];
+};
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+#endif
diff --git a/libc/netbsd/resolv/res_cache.c b/libc/netbsd/resolv/res_cache.c
index 0bb2f23..838e084 100644
--- a/libc/netbsd/resolv/res_cache.c
+++ b/libc/netbsd/resolv/res_cache.c
@@ -1170,6 +1170,15 @@
* inlined in the Entry structure.
*/
+/* Maximum time for a thread to wait for an pending request */
+#define PENDING_REQUEST_TIMEOUT 20;
+
+typedef struct pending_req_info {
+ unsigned int hash;
+ pthread_cond_t cond;
+ struct pending_req_info* next;
+} PendingReqInfo;
+
typedef struct resolv_cache {
int max_entries;
int num_entries;
@@ -1178,6 +1187,7 @@
unsigned generation;
int last_id;
Entry* entries;
+ PendingReqInfo pending_requests;
} Cache;
typedef struct resolv_cache_info {
@@ -1192,6 +1202,107 @@
#define HTABLE_VALID(x) ((x) != NULL && (x) != HTABLE_DELETED)
static void
+_cache_flush_pending_requests_locked( struct resolv_cache* cache )
+{
+ struct pending_req_info *ri, *tmp;
+ if (cache) {
+ ri = cache->pending_requests.next;
+
+ while (ri) {
+ tmp = ri;
+ ri = ri->next;
+ pthread_cond_broadcast(&tmp->cond);
+
+ pthread_cond_destroy(&tmp->cond);
+ free(tmp);
+ }
+
+ cache->pending_requests.next = NULL;
+ }
+}
+
+/* return 0 if no pending request is found matching the key
+ * if a matching request is found the calling thread will wait
+ * and return 1 when released */
+static int
+_cache_check_pending_request_locked( struct resolv_cache* cache, Entry* key )
+{
+ struct pending_req_info *ri, *prev;
+ int exist = 0;
+
+ if (cache && key) {
+ ri = cache->pending_requests.next;
+ prev = &cache->pending_requests;
+ while (ri) {
+ if (ri->hash == key->hash) {
+ exist = 1;
+ break;
+ }
+ prev = ri;
+ ri = ri->next;
+ }
+
+ if (!exist) {
+ ri = calloc(1, sizeof(struct pending_req_info));
+ if (ri) {
+ ri->hash = key->hash;
+ pthread_cond_init(&ri->cond, NULL);
+ prev->next = ri;
+ }
+ } else {
+ struct timespec ts = {0,0};
+ ts.tv_sec = _time_now() + PENDING_REQUEST_TIMEOUT;
+ int rv = pthread_cond_timedwait(&ri->cond, &cache->lock, &ts);
+ }
+ }
+
+ return exist;
+}
+
+/* notify any waiting thread that waiting on a request
+ * matching the key has been added to the cache */
+static void
+_cache_notify_waiting_tid_locked( struct resolv_cache* cache, Entry* key )
+{
+ struct pending_req_info *ri, *prev;
+
+ if (cache && key) {
+ ri = cache->pending_requests.next;
+ prev = &cache->pending_requests;
+ while (ri) {
+ if (ri->hash == key->hash) {
+ pthread_cond_broadcast(&ri->cond);
+ break;
+ }
+ prev = ri;
+ ri = ri->next;
+ }
+
+ // remove item from list and destroy
+ if (ri) {
+ prev->next = ri->next;
+ pthread_cond_destroy(&ri->cond);
+ free(ri);
+ }
+ }
+}
+
+/* notify the cache that the query failed */
+void
+_resolv_cache_query_failed( struct resolv_cache* cache,
+ const void* query,
+ int querylen)
+{
+ Entry key[1];
+
+ if (cache && entry_init_key(key, query, querylen)) {
+ pthread_mutex_lock(&cache->lock);
+ _cache_notify_waiting_tid_locked(cache, key);
+ pthread_mutex_unlock(&cache->lock);
+ }
+}
+
+static void
_cache_flush_locked( Cache* cache )
{
int nn;
@@ -1208,6 +1319,9 @@
}
}
+ // flush pending request
+ _cache_flush_pending_requests_locked(cache);
+
cache->mru_list.mru_next = cache->mru_list.mru_prev = &cache->mru_list;
cache->num_entries = 0;
cache->last_id = 0;
@@ -1491,7 +1605,17 @@
if (e == NULL) {
XLOG( "NOT IN CACHE");
- goto Exit;
+ // calling thread will wait if an outstanding request is found
+ // that matching this query
+ if (!_cache_check_pending_request_locked(cache, key)) {
+ goto Exit;
+ } else {
+ lookup = _cache_lookup_p(cache, key);
+ e = *lookup;
+ if (e == NULL) {
+ goto Exit;
+ }
+ }
}
now = _time_now();
@@ -1594,6 +1718,7 @@
_cache_dump_mru(cache);
#endif
Exit:
+ _cache_notify_waiting_tid_locked(cache, key);
pthread_mutex_unlock( &cache->lock );
}
diff --git a/libc/netbsd/resolv/res_send.c b/libc/netbsd/resolv/res_send.c
index 53c492f..72a7ada 100644
--- a/libc/netbsd/resolv/res_send.c
+++ b/libc/netbsd/resolv/res_send.c
@@ -646,6 +646,9 @@
errno = terrno;
return (-1);
fail:
+#if USE_RESOLV_CACHE
+ _resolv_cache_query_failed(cache, buf, buflen);
+#endif
res_nclose(statp);
return (-1);
}
diff --git a/libc/private/resolv_cache.h b/libc/private/resolv_cache.h
index 2a54453..1dcc53f 100644
--- a/libc/private/resolv_cache.h
+++ b/libc/private/resolv_cache.h
@@ -95,4 +95,10 @@
const void* answer,
int answerlen );
+/* Notify the cache a request failed */
+extern void
+_resolv_cache_query_failed( struct resolv_cache* cache,
+ const void* query,
+ int querylen);
+
#endif /* _RESOLV_CACHE_H_ */
diff --git a/libc/stdio/__sprintf_chk.c b/libc/stdio/__sprintf_chk.c
new file mode 100644
index 0000000..67acbe1
--- /dev/null
+++ b/libc/stdio/__sprintf_chk.c
@@ -0,0 +1,58 @@
+/*
+ * Copyright (C) 2012 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 <stdarg.h>
+
+/*
+ * Runtime implementation of __builtin____sprintf_chk.
+ *
+ * See
+ * http://gcc.gnu.org/onlinedocs/gcc/Object-Size-Checking.html
+ * http://gcc.gnu.org/ml/gcc-patches/2004-09/msg02055.html
+ * for details.
+ *
+ * This sprintf check is called if _FORTIFY_SOURCE is defined and
+ * greater than 0.
+ */
+int __sprintf_chk(
+ char *dest,
+ int flags,
+ size_t dest_len_from_compiler,
+ const char *format, ...)
+{
+ va_list va;
+ int retval;
+
+ va_start(va, format);
+ retval = __vsprintf_chk(dest, flags,
+ dest_len_from_compiler, format, va);
+ va_end(va);
+
+ return retval;
+}
diff --git a/libc/stdio/__vsprintf_chk.c b/libc/stdio/__vsprintf_chk.c
new file mode 100644
index 0000000..8a809fc
--- /dev/null
+++ b/libc/stdio/__vsprintf_chk.c
@@ -0,0 +1,61 @@
+/*
+ * Copyright (C) 2012 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 <stdarg.h>
+#include <private/logd.h>
+
+/*
+ * Runtime implementation of __builtin____vsprintf_chk.
+ *
+ * See
+ * http://gcc.gnu.org/onlinedocs/gcc/Object-Size-Checking.html
+ * http://gcc.gnu.org/ml/gcc-patches/2004-09/msg02055.html
+ * for details.
+ *
+ * This vsprintf check is called if _FORTIFY_SOURCE is defined and
+ * greater than 0.
+ */
+int __vsprintf_chk(
+ char *dest,
+ int flags,
+ size_t dest_len_from_compiler,
+ const char *format,
+ va_list va)
+{
+ int ret = vsnprintf(dest, dest_len_from_compiler, format, va);
+
+ if ((size_t) ret >= dest_len_from_compiler) {
+ __libc_android_log_print(ANDROID_LOG_FATAL, "libc",
+ "*** vsprintf buffer overflow detected ***\n");
+ abort();
+ }
+
+ return ret;
+}