//===-- sanitizer_common_interceptors.inc -----------------------*- C++ -*-===//
//
-// This file is distributed under the University of Illinois Open Source
-// License. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
//
// ThreadSanitizer, MemorySanitizer, etc.
//
// This file should be included into the tool's interceptor file,
-// which has to define it's own macros:
+// which has to define its own macros:
// COMMON_INTERCEPTOR_ENTER
+// COMMON_INTERCEPTOR_ENTER_NOIGNORE
// COMMON_INTERCEPTOR_READ_RANGE
// COMMON_INTERCEPTOR_WRITE_RANGE
// COMMON_INTERCEPTOR_INITIALIZE_RANGE
+// COMMON_INTERCEPTOR_DIR_ACQUIRE
// COMMON_INTERCEPTOR_FD_ACQUIRE
// COMMON_INTERCEPTOR_FD_RELEASE
// COMMON_INTERCEPTOR_FD_ACCESS
// COMMON_INTERCEPTOR_SET_THREAD_NAME
+// COMMON_INTERCEPTOR_ON_DLOPEN
// COMMON_INTERCEPTOR_ON_EXIT
-// COMMON_INTERCEPTOR_MUTEX_LOCK
+// COMMON_INTERCEPTOR_MUTEX_PRE_LOCK
+// COMMON_INTERCEPTOR_MUTEX_POST_LOCK
// COMMON_INTERCEPTOR_MUTEX_UNLOCK
// COMMON_INTERCEPTOR_MUTEX_REPAIR
// COMMON_INTERCEPTOR_SET_PTHREAD_NAME
// COMMON_INTERCEPTOR_HANDLE_RECVMSG
+// COMMON_INTERCEPTOR_NOTHING_IS_INITIALIZED
+// COMMON_INTERCEPTOR_MEMSET_IMPL
+// COMMON_INTERCEPTOR_MEMMOVE_IMPL
+// COMMON_INTERCEPTOR_MEMCPY_IMPL
+// COMMON_INTERCEPTOR_MMAP_IMPL
+// COMMON_INTERCEPTOR_COPY_STRING
+// COMMON_INTERCEPTOR_STRNDUP_IMPL
//===----------------------------------------------------------------------===//
+
#include "interception/interception.h"
+#include "sanitizer_addrhashmap.h"
+#include "sanitizer_errno.h"
+#include "sanitizer_placement_new.h"
#include "sanitizer_platform_interceptors.h"
+#include "sanitizer_symbolizer.h"
+#include "sanitizer_tls_get_addr.h"
#include <stdarg.h>
+#if SANITIZER_INTERCEPTOR_HOOKS
+#define CALL_WEAK_INTERCEPTOR_HOOK(f, ...) f(__VA_ARGS__);
+#define DECLARE_WEAK_INTERCEPTOR_HOOK(f, ...) \
+ SANITIZER_INTERFACE_WEAK_DEF(void, f, __VA_ARGS__) {}
+#else
+#define DECLARE_WEAK_INTERCEPTOR_HOOK(f, ...)
+#define CALL_WEAK_INTERCEPTOR_HOOK(f, ...)
+
+#endif // SANITIZER_INTERCEPTOR_HOOKS
+
#if SANITIZER_WINDOWS && !defined(va_copy)
#define va_copy(dst, src) ((dst) = (src))
#endif // _WIN32
+#if SANITIZER_FREEBSD
+#define pthread_setname_np pthread_set_name_np
+#define inet_aton __inet_aton
+#define inet_pton __inet_pton
+#define iconv __bsd_iconv
+#endif
+
+#if SANITIZER_NETBSD
+#define clock_getres __clock_getres50
+#define clock_gettime __clock_gettime50
+#define clock_settime __clock_settime50
+#define ctime __ctime50
+#define ctime_r __ctime_r50
+#define devname __devname50
+#define fgetpos __fgetpos50
+#define fsetpos __fsetpos50
+#define fts_children __fts_children60
+#define fts_close __fts_close60
+#define fts_open __fts_open60
+#define fts_read __fts_read60
+#define fts_set __fts_set60
+#define getitimer __getitimer50
+#define getmntinfo __getmntinfo13
+#define getpwent __getpwent50
+#define getpwnam __getpwnam50
+#define getpwnam_r __getpwnam_r50
+#define getpwuid __getpwuid50
+#define getpwuid_r __getpwuid_r50
+#define getutent __getutent50
+#define getutxent __getutxent50
+#define getutxid __getutxid50
+#define getutxline __getutxline50
+#define pututxline __pututxline50
+#define glob __glob30
+#define gmtime __gmtime50
+#define gmtime_r __gmtime_r50
+#define localtime __locatime50
+#define localtime_r __localtime_r50
+#define mktime __mktime50
+#define lstat __lstat50
+#define opendir __opendir30
+#define readdir __readdir30
+#define readdir_r __readdir_r30
+#define scandir __scandir30
+#define setitimer __setitimer50
+#define setlocale __setlocale50
+#define shmctl __shmctl50
+#define sigemptyset __sigemptyset14
+#define sigfillset __sigfillset14
+#define sigpending __sigpending14
+#define sigprocmask __sigprocmask14
+#define sigtimedwait __sigtimedwait50
+#define stat __stat50
+#define time __time50
+#define times __times13
+#define unvis __unvis50
+#define wait3 __wait350
+#define wait4 __wait450
+extern const unsigned short *_ctype_tab_;
+extern const short *_toupper_tab_;
+extern const short *_tolower_tab_;
+#endif
+
+// Platform-specific options.
+#if SANITIZER_MAC
+namespace __sanitizer {
+bool PlatformHasDifferentMemcpyAndMemmove();
+}
+#define PLATFORM_HAS_DIFFERENT_MEMCPY_AND_MEMMOVE \
+ (__sanitizer::PlatformHasDifferentMemcpyAndMemmove())
+#elif SANITIZER_WINDOWS64
+#define PLATFORM_HAS_DIFFERENT_MEMCPY_AND_MEMMOVE false
+#else
+#define PLATFORM_HAS_DIFFERENT_MEMCPY_AND_MEMMOVE true
+#endif // SANITIZER_MAC
+
#ifndef COMMON_INTERCEPTOR_INITIALIZE_RANGE
-#define COMMON_INTERCEPTOR_INITIALIZE_RANGE(ctx, p, size) {}
+#define COMMON_INTERCEPTOR_INITIALIZE_RANGE(p, size) {}
+#endif
+
+#ifndef COMMON_INTERCEPTOR_UNPOISON_PARAM
+#define COMMON_INTERCEPTOR_UNPOISON_PARAM(count) {}
#endif
#ifndef COMMON_INTERCEPTOR_FD_ACCESS
#define COMMON_INTERCEPTOR_FD_ACCESS(ctx, fd) {}
#endif
-#ifndef COMMON_INTERCEPTOR_MUTEX_LOCK
-#define COMMON_INTERCEPTOR_MUTEX_LOCK(ctx, m) {}
+#ifndef COMMON_INTERCEPTOR_MUTEX_PRE_LOCK
+#define COMMON_INTERCEPTOR_MUTEX_PRE_LOCK(ctx, m) {}
+#endif
+
+#ifndef COMMON_INTERCEPTOR_MUTEX_POST_LOCK
+#define COMMON_INTERCEPTOR_MUTEX_POST_LOCK(ctx, m) {}
#endif
#ifndef COMMON_INTERCEPTOR_MUTEX_UNLOCK
#define COMMON_INTERCEPTOR_MUTEX_REPAIR(ctx, m) {}
#endif
+#ifndef COMMON_INTERCEPTOR_MUTEX_INVALID
+#define COMMON_INTERCEPTOR_MUTEX_INVALID(ctx, m) {}
+#endif
+
#ifndef COMMON_INTERCEPTOR_HANDLE_RECVMSG
#define COMMON_INTERCEPTOR_HANDLE_RECVMSG(ctx, msg) ((void)(msg))
#endif
+#ifndef COMMON_INTERCEPTOR_FILE_OPEN
+#define COMMON_INTERCEPTOR_FILE_OPEN(ctx, file, path) {}
+#endif
+
+#ifndef COMMON_INTERCEPTOR_FILE_CLOSE
+#define COMMON_INTERCEPTOR_FILE_CLOSE(ctx, file) {}
+#endif
+
+#ifndef COMMON_INTERCEPTOR_LIBRARY_LOADED
+#define COMMON_INTERCEPTOR_LIBRARY_LOADED(filename, handle) {}
+#endif
+
+#ifndef COMMON_INTERCEPTOR_LIBRARY_UNLOADED
+#define COMMON_INTERCEPTOR_LIBRARY_UNLOADED() {}
+#endif
+
+#ifndef COMMON_INTERCEPTOR_ENTER_NOIGNORE
+#define COMMON_INTERCEPTOR_ENTER_NOIGNORE(ctx, ...) \
+ COMMON_INTERCEPTOR_ENTER(ctx, __VA_ARGS__)
+#endif
+
+#ifndef COMMON_INTERCEPTOR_NOTHING_IS_INITIALIZED
+#define COMMON_INTERCEPTOR_NOTHING_IS_INITIALIZED (0)
+#endif
+
+#define COMMON_INTERCEPTOR_READ_STRING(ctx, s, n) \
+ COMMON_INTERCEPTOR_READ_RANGE((ctx), (s), \
+ common_flags()->strict_string_checks ? (REAL(strlen)(s)) + 1 : (n) )
+
+#ifndef COMMON_INTERCEPTOR_ON_DLOPEN
+#define COMMON_INTERCEPTOR_ON_DLOPEN(filename, flag) \
+ CheckNoDeepBind(filename, flag);
+#endif
+
+#ifndef COMMON_INTERCEPTOR_GET_TLS_RANGE
+#define COMMON_INTERCEPTOR_GET_TLS_RANGE(begin, end) *begin = *end = 0;
+#endif
+
+#ifndef COMMON_INTERCEPTOR_ACQUIRE
+#define COMMON_INTERCEPTOR_ACQUIRE(ctx, u) {}
+#endif
+
+#ifndef COMMON_INTERCEPTOR_RELEASE
+#define COMMON_INTERCEPTOR_RELEASE(ctx, u) {}
+#endif
+
+#ifndef COMMON_INTERCEPTOR_USER_CALLBACK_START
+#define COMMON_INTERCEPTOR_USER_CALLBACK_START() {}
+#endif
+
+#ifndef COMMON_INTERCEPTOR_USER_CALLBACK_END
+#define COMMON_INTERCEPTOR_USER_CALLBACK_END() {}
+#endif
+
+#ifdef SANITIZER_NLDBL_VERSION
+#define COMMON_INTERCEPT_FUNCTION_LDBL(fn) \
+ COMMON_INTERCEPT_FUNCTION_VER(fn, SANITIZER_NLDBL_VERSION)
+#else
+#define COMMON_INTERCEPT_FUNCTION_LDBL(fn) \
+ COMMON_INTERCEPT_FUNCTION(fn)
+#endif
+
+#ifndef COMMON_INTERCEPTOR_MEMSET_IMPL
+#define COMMON_INTERCEPTOR_MEMSET_IMPL(ctx, dst, v, size) \
+ { \
+ if (COMMON_INTERCEPTOR_NOTHING_IS_INITIALIZED) \
+ return internal_memset(dst, v, size); \
+ COMMON_INTERCEPTOR_ENTER(ctx, memset, dst, v, size); \
+ if (common_flags()->intercept_intrin) \
+ COMMON_INTERCEPTOR_WRITE_RANGE(ctx, dst, size); \
+ return REAL(memset)(dst, v, size); \
+ }
+#endif
+
+#ifndef COMMON_INTERCEPTOR_MEMMOVE_IMPL
+#define COMMON_INTERCEPTOR_MEMMOVE_IMPL(ctx, dst, src, size) \
+ { \
+ if (COMMON_INTERCEPTOR_NOTHING_IS_INITIALIZED) \
+ return internal_memmove(dst, src, size); \
+ COMMON_INTERCEPTOR_ENTER(ctx, memmove, dst, src, size); \
+ if (common_flags()->intercept_intrin) { \
+ COMMON_INTERCEPTOR_WRITE_RANGE(ctx, dst, size); \
+ COMMON_INTERCEPTOR_READ_RANGE(ctx, src, size); \
+ } \
+ return REAL(memmove)(dst, src, size); \
+ }
+#endif
+
+#ifndef COMMON_INTERCEPTOR_MEMCPY_IMPL
+#define COMMON_INTERCEPTOR_MEMCPY_IMPL(ctx, dst, src, size) \
+ { \
+ if (COMMON_INTERCEPTOR_NOTHING_IS_INITIALIZED) { \
+ return internal_memmove(dst, src, size); \
+ } \
+ COMMON_INTERCEPTOR_ENTER(ctx, memcpy, dst, src, size); \
+ if (common_flags()->intercept_intrin) { \
+ COMMON_INTERCEPTOR_WRITE_RANGE(ctx, dst, size); \
+ COMMON_INTERCEPTOR_READ_RANGE(ctx, src, size); \
+ } \
+ return REAL(memcpy)(dst, src, size); \
+ }
+#endif
+
+#ifndef COMMON_INTERCEPTOR_MMAP_IMPL
+#define COMMON_INTERCEPTOR_MMAP_IMPL(ctx, mmap, addr, sz, prot, flags, fd, \
+ off) \
+ { return REAL(mmap)(addr, sz, prot, flags, fd, off); }
+#endif
+
+#ifndef COMMON_INTERCEPTOR_COPY_STRING
+#define COMMON_INTERCEPTOR_COPY_STRING(ctx, to, from, size) {}
+#endif
+
+#ifndef COMMON_INTERCEPTOR_STRNDUP_IMPL
+#define COMMON_INTERCEPTOR_STRNDUP_IMPL(ctx, s, size) \
+ COMMON_INTERCEPTOR_ENTER(ctx, strndup, s, size); \
+ uptr copy_length = internal_strnlen(s, size); \
+ char *new_mem = (char *)WRAP(malloc)(copy_length + 1); \
+ if (common_flags()->intercept_strndup) { \
+ COMMON_INTERCEPTOR_READ_STRING(ctx, s, Min(size, copy_length + 1)); \
+ } \
+ COMMON_INTERCEPTOR_COPY_STRING(ctx, new_mem, s, copy_length); \
+ internal_memcpy(new_mem, s, copy_length); \
+ new_mem[copy_length] = '\0'; \
+ return new_mem;
+#endif
+
+struct FileMetadata {
+ // For open_memstream().
+ char **addr;
+ SIZE_T *size;
+};
+
+struct CommonInterceptorMetadata {
+ enum {
+ CIMT_INVALID = 0,
+ CIMT_FILE
+ } type;
+ union {
+ FileMetadata file;
+ };
+};
+
+#if SI_POSIX
+typedef AddrHashMap<CommonInterceptorMetadata, 31051> MetadataHashMap;
+
+static MetadataHashMap *interceptor_metadata_map;
+
+UNUSED static void SetInterceptorMetadata(__sanitizer_FILE *addr,
+ const FileMetadata &file) {
+ MetadataHashMap::Handle h(interceptor_metadata_map, (uptr)addr);
+ CHECK(h.created());
+ h->type = CommonInterceptorMetadata::CIMT_FILE;
+ h->file = file;
+}
+
+UNUSED static const FileMetadata *GetInterceptorMetadata(
+ __sanitizer_FILE *addr) {
+ MetadataHashMap::Handle h(interceptor_metadata_map, (uptr)addr,
+ /* remove */ false,
+ /* create */ false);
+ if (addr && h.exists()) {
+ CHECK(!h.created());
+ CHECK(h->type == CommonInterceptorMetadata::CIMT_FILE);
+ return &h->file;
+ } else {
+ return 0;
+ }
+}
+
+UNUSED static void DeleteInterceptorMetadata(void *addr) {
+ MetadataHashMap::Handle h(interceptor_metadata_map, (uptr)addr, true);
+ CHECK(h.exists());
+}
+#endif // SI_POSIX
+
+#if SANITIZER_INTERCEPT_STRLEN
+INTERCEPTOR(SIZE_T, strlen, const char *s) {
+ // Sometimes strlen is called prior to InitializeCommonInterceptors,
+ // in which case the REAL(strlen) typically used in
+ // COMMON_INTERCEPTOR_ENTER will fail. We use internal_strlen here
+ // to handle that.
+ if (COMMON_INTERCEPTOR_NOTHING_IS_INITIALIZED)
+ return internal_strlen(s);
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, strlen, s);
+ SIZE_T result = REAL(strlen)(s);
+ if (common_flags()->intercept_strlen)
+ COMMON_INTERCEPTOR_READ_RANGE(ctx, s, result + 1);
+ return result;
+}
+#define INIT_STRLEN COMMON_INTERCEPT_FUNCTION(strlen)
+#else
+#define INIT_STRLEN
+#endif
+
+#if SANITIZER_INTERCEPT_STRNLEN
+INTERCEPTOR(SIZE_T, strnlen, const char *s, SIZE_T maxlen) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, strnlen, s, maxlen);
+ SIZE_T length = REAL(strnlen)(s, maxlen);
+ if (common_flags()->intercept_strlen)
+ COMMON_INTERCEPTOR_READ_RANGE(ctx, s, Min(length + 1, maxlen));
+ return length;
+}
+#define INIT_STRNLEN COMMON_INTERCEPT_FUNCTION(strnlen)
+#else
+#define INIT_STRNLEN
+#endif
+
+#if SANITIZER_INTERCEPT_STRNDUP
+INTERCEPTOR(char*, strndup, const char *s, uptr size) {
+ void *ctx;
+ COMMON_INTERCEPTOR_STRNDUP_IMPL(ctx, s, size);
+}
+#define INIT_STRNDUP COMMON_INTERCEPT_FUNCTION(strndup)
+#else
+#define INIT_STRNDUP
+#endif // SANITIZER_INTERCEPT_STRNDUP
+
+#if SANITIZER_INTERCEPT___STRNDUP
+INTERCEPTOR(char*, __strndup, const char *s, uptr size) {
+ void *ctx;
+ COMMON_INTERCEPTOR_STRNDUP_IMPL(ctx, s, size);
+}
+#define INIT___STRNDUP COMMON_INTERCEPT_FUNCTION(__strndup)
+#else
+#define INIT___STRNDUP
+#endif // SANITIZER_INTERCEPT___STRNDUP
+
#if SANITIZER_INTERCEPT_TEXTDOMAIN
INTERCEPTOR(char*, textdomain, const char *domainname) {
void *ctx;
COMMON_INTERCEPTOR_ENTER(ctx, textdomain, domainname);
- char* domain = REAL(textdomain)(domainname);
+ if (domainname) COMMON_INTERCEPTOR_READ_STRING(ctx, domainname, 0);
+ char *domain = REAL(textdomain)(domainname);
if (domain) {
- COMMON_INTERCEPTOR_INITIALIZE_RANGE(ctx, domain,
- REAL(strlen)(domain) + 1);
+ COMMON_INTERCEPTOR_INITIALIZE_RANGE(domain, REAL(strlen)(domain) + 1);
}
return domain;
}
return (c1 == c2) ? 0 : (c1 < c2) ? -1 : 1;
}
+DECLARE_WEAK_INTERCEPTOR_HOOK(__sanitizer_weak_hook_strcmp, uptr called_pc,
+ const char *s1, const char *s2, int result)
+
INTERCEPTOR(int, strcmp, const char *s1, const char *s2) {
void *ctx;
COMMON_INTERCEPTOR_ENTER(ctx, strcmp, s1, s2);
c2 = (unsigned char)s2[i];
if (c1 != c2 || c1 == '\0') break;
}
- COMMON_INTERCEPTOR_READ_RANGE(ctx, s1, i + 1);
- COMMON_INTERCEPTOR_READ_RANGE(ctx, s2, i + 1);
- return CharCmpX(c1, c2);
+ COMMON_INTERCEPTOR_READ_STRING(ctx, s1, i + 1);
+ COMMON_INTERCEPTOR_READ_STRING(ctx, s2, i + 1);
+ int result = CharCmpX(c1, c2);
+ CALL_WEAK_INTERCEPTOR_HOOK(__sanitizer_weak_hook_strcmp, GET_CALLER_PC(), s1,
+ s2, result);
+ return result;
}
+DECLARE_WEAK_INTERCEPTOR_HOOK(__sanitizer_weak_hook_strncmp, uptr called_pc,
+ const char *s1, const char *s2, uptr n,
+ int result)
+
INTERCEPTOR(int, strncmp, const char *s1, const char *s2, uptr size) {
+ if (COMMON_INTERCEPTOR_NOTHING_IS_INITIALIZED)
+ return internal_strncmp(s1, s2, size);
void *ctx;
COMMON_INTERCEPTOR_ENTER(ctx, strncmp, s1, s2, size);
unsigned char c1 = 0, c2 = 0;
c2 = (unsigned char)s2[i];
if (c1 != c2 || c1 == '\0') break;
}
- COMMON_INTERCEPTOR_READ_RANGE(ctx, s1, Min(i + 1, size));
- COMMON_INTERCEPTOR_READ_RANGE(ctx, s2, Min(i + 1, size));
- return CharCmpX(c1, c2);
+ uptr i1 = i;
+ uptr i2 = i;
+ if (common_flags()->strict_string_checks) {
+ for (; i1 < size && s1[i1]; i1++) {}
+ for (; i2 < size && s2[i2]; i2++) {}
+ }
+ COMMON_INTERCEPTOR_READ_RANGE((ctx), (s1), Min(i1 + 1, size));
+ COMMON_INTERCEPTOR_READ_RANGE((ctx), (s2), Min(i2 + 1, size));
+ int result = CharCmpX(c1, c2);
+ CALL_WEAK_INTERCEPTOR_HOOK(__sanitizer_weak_hook_strncmp, GET_CALLER_PC(), s1,
+ s2, size, result);
+ return result;
}
#define INIT_STRCMP COMMON_INTERCEPT_FUNCTION(strcmp)
return c1_low - c2_low;
}
+DECLARE_WEAK_INTERCEPTOR_HOOK(__sanitizer_weak_hook_strcasecmp, uptr called_pc,
+ const char *s1, const char *s2, int result)
+
INTERCEPTOR(int, strcasecmp, const char *s1, const char *s2) {
void *ctx;
COMMON_INTERCEPTOR_ENTER(ctx, strcasecmp, s1, s2);
c2 = (unsigned char)s2[i];
if (CharCaseCmp(c1, c2) != 0 || c1 == '\0') break;
}
- COMMON_INTERCEPTOR_READ_RANGE(ctx, s1, i + 1);
- COMMON_INTERCEPTOR_READ_RANGE(ctx, s2, i + 1);
- return CharCaseCmp(c1, c2);
+ COMMON_INTERCEPTOR_READ_STRING(ctx, s1, i + 1);
+ COMMON_INTERCEPTOR_READ_STRING(ctx, s2, i + 1);
+ int result = CharCaseCmp(c1, c2);
+ CALL_WEAK_INTERCEPTOR_HOOK(__sanitizer_weak_hook_strcasecmp, GET_CALLER_PC(),
+ s1, s2, result);
+ return result;
}
-INTERCEPTOR(int, strncasecmp, const char *s1, const char *s2, SIZE_T n) {
+DECLARE_WEAK_INTERCEPTOR_HOOK(__sanitizer_weak_hook_strncasecmp, uptr called_pc,
+ const char *s1, const char *s2, uptr size,
+ int result)
+
+INTERCEPTOR(int, strncasecmp, const char *s1, const char *s2, SIZE_T size) {
void *ctx;
- COMMON_INTERCEPTOR_ENTER(ctx, strncasecmp, s1, s2, n);
+ COMMON_INTERCEPTOR_ENTER(ctx, strncasecmp, s1, s2, size);
unsigned char c1 = 0, c2 = 0;
uptr i;
- for (i = 0; i < n; i++) {
+ for (i = 0; i < size; i++) {
c1 = (unsigned char)s1[i];
c2 = (unsigned char)s2[i];
if (CharCaseCmp(c1, c2) != 0 || c1 == '\0') break;
}
- COMMON_INTERCEPTOR_READ_RANGE(ctx, s1, Min(i + 1, n));
- COMMON_INTERCEPTOR_READ_RANGE(ctx, s2, Min(i + 1, n));
- return CharCaseCmp(c1, c2);
+ uptr i1 = i;
+ uptr i2 = i;
+ if (common_flags()->strict_string_checks) {
+ for (; i1 < size && s1[i1]; i1++) {}
+ for (; i2 < size && s2[i2]; i2++) {}
+ }
+ COMMON_INTERCEPTOR_READ_RANGE((ctx), (s1), Min(i1 + 1, size));
+ COMMON_INTERCEPTOR_READ_RANGE((ctx), (s2), Min(i2 + 1, size));
+ int result = CharCaseCmp(c1, c2);
+ CALL_WEAK_INTERCEPTOR_HOOK(__sanitizer_weak_hook_strncasecmp, GET_CALLER_PC(),
+ s1, s2, size, result);
+ return result;
}
#define INIT_STRCASECMP COMMON_INTERCEPT_FUNCTION(strcasecmp)
#define INIT_STRNCASECMP
#endif
+#if SANITIZER_INTERCEPT_STRSTR || SANITIZER_INTERCEPT_STRCASESTR
+static inline void StrstrCheck(void *ctx, char *r, const char *s1,
+ const char *s2) {
+ uptr len1 = REAL(strlen)(s1);
+ uptr len2 = REAL(strlen)(s2);
+ COMMON_INTERCEPTOR_READ_STRING(ctx, s1, r ? r - s1 + len2 : len1 + 1);
+ COMMON_INTERCEPTOR_READ_RANGE(ctx, s2, len2 + 1);
+}
+#endif
+
+#if SANITIZER_INTERCEPT_STRSTR
+
+DECLARE_WEAK_INTERCEPTOR_HOOK(__sanitizer_weak_hook_strstr, uptr called_pc,
+ const char *s1, const char *s2, char *result)
+
+INTERCEPTOR(char*, strstr, const char *s1, const char *s2) {
+ if (COMMON_INTERCEPTOR_NOTHING_IS_INITIALIZED)
+ return internal_strstr(s1, s2);
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, strstr, s1, s2);
+ char *r = REAL(strstr)(s1, s2);
+ if (common_flags()->intercept_strstr)
+ StrstrCheck(ctx, r, s1, s2);
+ CALL_WEAK_INTERCEPTOR_HOOK(__sanitizer_weak_hook_strstr, GET_CALLER_PC(), s1,
+ s2, r);
+ return r;
+}
+
+#define INIT_STRSTR COMMON_INTERCEPT_FUNCTION(strstr);
+#else
+#define INIT_STRSTR
+#endif
+
+#if SANITIZER_INTERCEPT_STRCASESTR
+
+DECLARE_WEAK_INTERCEPTOR_HOOK(__sanitizer_weak_hook_strcasestr, uptr called_pc,
+ const char *s1, const char *s2, char *result)
+
+INTERCEPTOR(char*, strcasestr, const char *s1, const char *s2) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, strcasestr, s1, s2);
+ char *r = REAL(strcasestr)(s1, s2);
+ if (common_flags()->intercept_strstr)
+ StrstrCheck(ctx, r, s1, s2);
+ CALL_WEAK_INTERCEPTOR_HOOK(__sanitizer_weak_hook_strcasestr, GET_CALLER_PC(),
+ s1, s2, r);
+ return r;
+}
+
+#define INIT_STRCASESTR COMMON_INTERCEPT_FUNCTION(strcasestr);
+#else
+#define INIT_STRCASESTR
+#endif
+
+#if SANITIZER_INTERCEPT_STRTOK
+
+INTERCEPTOR(char*, strtok, char *str, const char *delimiters) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, strtok, str, delimiters);
+ if (!common_flags()->intercept_strtok) {
+ return REAL(strtok)(str, delimiters);
+ }
+ if (common_flags()->strict_string_checks) {
+ // If strict_string_checks is enabled, we check the whole first argument
+ // string on the first call (strtok saves this string in a static buffer
+ // for subsequent calls). We do not need to check strtok's result.
+ // As the delimiters can change, we check them every call.
+ if (str != nullptr) {
+ COMMON_INTERCEPTOR_READ_RANGE(ctx, str, REAL(strlen)(str) + 1);
+ }
+ COMMON_INTERCEPTOR_READ_RANGE(ctx, delimiters,
+ REAL(strlen)(delimiters) + 1);
+ return REAL(strtok)(str, delimiters);
+ } else {
+ // However, when strict_string_checks is disabled we cannot check the
+ // whole string on the first call. Instead, we check the result string
+ // which is guaranteed to be a NULL-terminated substring of the first
+ // argument. We also conservatively check one character of str and the
+ // delimiters.
+ if (str != nullptr) {
+ COMMON_INTERCEPTOR_READ_STRING(ctx, str, 1);
+ }
+ COMMON_INTERCEPTOR_READ_RANGE(ctx, delimiters, 1);
+ char *result = REAL(strtok)(str, delimiters);
+ if (result != nullptr) {
+ COMMON_INTERCEPTOR_READ_RANGE(ctx, result, REAL(strlen)(result) + 1);
+ } else if (str != nullptr) {
+ // No delimiter were found, it's safe to assume that the entire str was
+ // scanned.
+ COMMON_INTERCEPTOR_READ_RANGE(ctx, str, REAL(strlen)(str) + 1);
+ }
+ return result;
+ }
+}
+
+#define INIT_STRTOK COMMON_INTERCEPT_FUNCTION(strtok)
+#else
+#define INIT_STRTOK
+#endif
+
+#if SANITIZER_INTERCEPT_MEMMEM
+DECLARE_WEAK_INTERCEPTOR_HOOK(__sanitizer_weak_hook_memmem, uptr called_pc,
+ const void *s1, SIZE_T len1, const void *s2,
+ SIZE_T len2, void *result)
+
+INTERCEPTOR(void*, memmem, const void *s1, SIZE_T len1, const void *s2,
+ SIZE_T len2) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, memmem, s1, len1, s2, len2);
+ void *r = REAL(memmem)(s1, len1, s2, len2);
+ if (common_flags()->intercept_memmem) {
+ COMMON_INTERCEPTOR_READ_RANGE(ctx, s1, len1);
+ COMMON_INTERCEPTOR_READ_RANGE(ctx, s2, len2);
+ }
+ CALL_WEAK_INTERCEPTOR_HOOK(__sanitizer_weak_hook_memmem, GET_CALLER_PC(),
+ s1, len1, s2, len2, r);
+ return r;
+}
+
+#define INIT_MEMMEM COMMON_INTERCEPT_FUNCTION(memmem);
+#else
+#define INIT_MEMMEM
+#endif // SANITIZER_INTERCEPT_MEMMEM
+
+#if SANITIZER_INTERCEPT_STRCHR
+INTERCEPTOR(char*, strchr, const char *s, int c) {
+ void *ctx;
+ if (COMMON_INTERCEPTOR_NOTHING_IS_INITIALIZED)
+ return internal_strchr(s, c);
+ COMMON_INTERCEPTOR_ENTER(ctx, strchr, s, c);
+ char *result = REAL(strchr)(s, c);
+ if (common_flags()->intercept_strchr) {
+ // Keep strlen as macro argument, as macro may ignore it.
+ COMMON_INTERCEPTOR_READ_STRING(ctx, s,
+ (result ? result - s : REAL(strlen)(s)) + 1);
+ }
+ return result;
+}
+#define INIT_STRCHR COMMON_INTERCEPT_FUNCTION(strchr)
+#else
+#define INIT_STRCHR
+#endif
+
+#if SANITIZER_INTERCEPT_STRCHRNUL
+INTERCEPTOR(char*, strchrnul, const char *s, int c) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, strchrnul, s, c);
+ char *result = REAL(strchrnul)(s, c);
+ uptr len = result - s + 1;
+ if (common_flags()->intercept_strchr)
+ COMMON_INTERCEPTOR_READ_STRING(ctx, s, len);
+ return result;
+}
+#define INIT_STRCHRNUL COMMON_INTERCEPT_FUNCTION(strchrnul)
+#else
+#define INIT_STRCHRNUL
+#endif
+
+#if SANITIZER_INTERCEPT_STRRCHR
+INTERCEPTOR(char*, strrchr, const char *s, int c) {
+ void *ctx;
+ if (COMMON_INTERCEPTOR_NOTHING_IS_INITIALIZED)
+ return internal_strrchr(s, c);
+ COMMON_INTERCEPTOR_ENTER(ctx, strrchr, s, c);
+ if (common_flags()->intercept_strchr)
+ COMMON_INTERCEPTOR_READ_RANGE(ctx, s, REAL(strlen)(s) + 1);
+ return REAL(strrchr)(s, c);
+}
+#define INIT_STRRCHR COMMON_INTERCEPT_FUNCTION(strrchr)
+#else
+#define INIT_STRRCHR
+#endif
+
+#if SANITIZER_INTERCEPT_STRSPN
+INTERCEPTOR(SIZE_T, strspn, const char *s1, const char *s2) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, strspn, s1, s2);
+ SIZE_T r = REAL(strspn)(s1, s2);
+ if (common_flags()->intercept_strspn) {
+ COMMON_INTERCEPTOR_READ_RANGE(ctx, s2, REAL(strlen)(s2) + 1);
+ COMMON_INTERCEPTOR_READ_STRING(ctx, s1, r + 1);
+ }
+ return r;
+}
+
+INTERCEPTOR(SIZE_T, strcspn, const char *s1, const char *s2) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, strcspn, s1, s2);
+ SIZE_T r = REAL(strcspn)(s1, s2);
+ if (common_flags()->intercept_strspn) {
+ COMMON_INTERCEPTOR_READ_RANGE(ctx, s2, REAL(strlen)(s2) + 1);
+ COMMON_INTERCEPTOR_READ_STRING(ctx, s1, r + 1);
+ }
+ return r;
+}
+
+#define INIT_STRSPN \
+ COMMON_INTERCEPT_FUNCTION(strspn); \
+ COMMON_INTERCEPT_FUNCTION(strcspn);
+#else
+#define INIT_STRSPN
+#endif
+
+#if SANITIZER_INTERCEPT_STRPBRK
+INTERCEPTOR(char *, strpbrk, const char *s1, const char *s2) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, strpbrk, s1, s2);
+ char *r = REAL(strpbrk)(s1, s2);
+ if (common_flags()->intercept_strpbrk) {
+ COMMON_INTERCEPTOR_READ_RANGE(ctx, s2, REAL(strlen)(s2) + 1);
+ COMMON_INTERCEPTOR_READ_STRING(ctx, s1,
+ r ? r - s1 + 1 : REAL(strlen)(s1) + 1);
+ }
+ return r;
+}
+
+#define INIT_STRPBRK COMMON_INTERCEPT_FUNCTION(strpbrk);
+#else
+#define INIT_STRPBRK
+#endif
+
+#if SANITIZER_INTERCEPT_MEMSET
+INTERCEPTOR(void *, memset, void *dst, int v, uptr size) {
+ void *ctx;
+ COMMON_INTERCEPTOR_MEMSET_IMPL(ctx, dst, v, size);
+}
+
+#define INIT_MEMSET COMMON_INTERCEPT_FUNCTION(memset)
+#else
+#define INIT_MEMSET
+#endif
+
+#if SANITIZER_INTERCEPT_MEMMOVE
+INTERCEPTOR(void *, memmove, void *dst, const void *src, uptr size) {
+ void *ctx;
+ COMMON_INTERCEPTOR_MEMMOVE_IMPL(ctx, dst, src, size);
+}
+
+#define INIT_MEMMOVE COMMON_INTERCEPT_FUNCTION(memmove)
+#else
+#define INIT_MEMMOVE
+#endif
+
+#if SANITIZER_INTERCEPT_MEMCPY
+INTERCEPTOR(void *, memcpy, void *dst, const void *src, uptr size) {
+ // On OS X, calling internal_memcpy here will cause memory corruptions,
+ // because memcpy and memmove are actually aliases of the same
+ // implementation. We need to use internal_memmove here.
+ // N.B.: If we switch this to internal_ we'll have to use internal_memmove
+ // due to memcpy being an alias of memmove on OS X.
+ void *ctx;
+ if (PLATFORM_HAS_DIFFERENT_MEMCPY_AND_MEMMOVE) {
+ COMMON_INTERCEPTOR_MEMCPY_IMPL(ctx, dst, src, size);
+ } else {
+ COMMON_INTERCEPTOR_MEMMOVE_IMPL(ctx, dst, src, size);
+ }
+}
+
+#define INIT_MEMCPY \
+ do { \
+ if (PLATFORM_HAS_DIFFERENT_MEMCPY_AND_MEMMOVE) { \
+ COMMON_INTERCEPT_FUNCTION(memcpy); \
+ } else { \
+ ASSIGN_REAL(memcpy, memmove); \
+ } \
+ CHECK(REAL(memcpy)); \
+ } while (false)
+
+#else
+#define INIT_MEMCPY
+#endif
+
+#if SANITIZER_INTERCEPT_MEMCMP
+DECLARE_WEAK_INTERCEPTOR_HOOK(__sanitizer_weak_hook_memcmp, uptr called_pc,
+ const void *s1, const void *s2, uptr n,
+ int result)
+
+// Common code for `memcmp` and `bcmp`.
+int MemcmpInterceptorCommon(void *ctx,
+ int (*real_fn)(const void *, const void *, uptr),
+ const void *a1, const void *a2, uptr size) {
+ if (common_flags()->intercept_memcmp) {
+ if (common_flags()->strict_memcmp) {
+ // Check the entire regions even if the first bytes of the buffers are
+ // different.
+ COMMON_INTERCEPTOR_READ_RANGE(ctx, a1, size);
+ COMMON_INTERCEPTOR_READ_RANGE(ctx, a2, size);
+ // Fallthrough to REAL(memcmp) below.
+ } else {
+ unsigned char c1 = 0, c2 = 0;
+ const unsigned char *s1 = (const unsigned char*)a1;
+ const unsigned char *s2 = (const unsigned char*)a2;
+ uptr i;
+ for (i = 0; i < size; i++) {
+ c1 = s1[i];
+ c2 = s2[i];
+ if (c1 != c2) break;
+ }
+ COMMON_INTERCEPTOR_READ_RANGE(ctx, s1, Min(i + 1, size));
+ COMMON_INTERCEPTOR_READ_RANGE(ctx, s2, Min(i + 1, size));
+ int r = CharCmpX(c1, c2);
+ CALL_WEAK_INTERCEPTOR_HOOK(__sanitizer_weak_hook_memcmp, GET_CALLER_PC(),
+ a1, a2, size, r);
+ return r;
+ }
+ }
+ int result = real_fn(a1, a2, size);
+ CALL_WEAK_INTERCEPTOR_HOOK(__sanitizer_weak_hook_memcmp, GET_CALLER_PC(), a1,
+ a2, size, result);
+ return result;
+}
+
+INTERCEPTOR(int, memcmp, const void *a1, const void *a2, uptr size) {
+ if (COMMON_INTERCEPTOR_NOTHING_IS_INITIALIZED)
+ return internal_memcmp(a1, a2, size);
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, memcmp, a1, a2, size);
+ return MemcmpInterceptorCommon(ctx, REAL(memcmp), a1, a2, size);
+}
+
+#define INIT_MEMCMP COMMON_INTERCEPT_FUNCTION(memcmp)
+#else
+#define INIT_MEMCMP
+#endif
+
+#if SANITIZER_INTERCEPT_BCMP
+INTERCEPTOR(int, bcmp, const void *a1, const void *a2, uptr size) {
+ if (COMMON_INTERCEPTOR_NOTHING_IS_INITIALIZED)
+ return internal_memcmp(a1, a2, size);
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, bcmp, a1, a2, size);
+ return MemcmpInterceptorCommon(ctx, REAL(bcmp), a1, a2, size);
+}
+
+#define INIT_BCMP COMMON_INTERCEPT_FUNCTION(bcmp)
+#else
+#define INIT_BCMP
+#endif
+
+#if SANITIZER_INTERCEPT_MEMCHR
+INTERCEPTOR(void*, memchr, const void *s, int c, SIZE_T n) {
+ if (COMMON_INTERCEPTOR_NOTHING_IS_INITIALIZED)
+ return internal_memchr(s, c, n);
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, memchr, s, c, n);
+#if SANITIZER_WINDOWS
+ void *res;
+ if (REAL(memchr)) {
+ res = REAL(memchr)(s, c, n);
+ } else {
+ res = internal_memchr(s, c, n);
+ }
+#else
+ void *res = REAL(memchr)(s, c, n);
+#endif
+ uptr len = res ? (char *)res - (const char *)s + 1 : n;
+ COMMON_INTERCEPTOR_READ_RANGE(ctx, s, len);
+ return res;
+}
+
+#define INIT_MEMCHR COMMON_INTERCEPT_FUNCTION(memchr)
+#else
+#define INIT_MEMCHR
+#endif
+
+#if SANITIZER_INTERCEPT_MEMRCHR
+INTERCEPTOR(void*, memrchr, const void *s, int c, SIZE_T n) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, memrchr, s, c, n);
+ COMMON_INTERCEPTOR_READ_RANGE(ctx, s, n);
+ return REAL(memrchr)(s, c, n);
+}
+
+#define INIT_MEMRCHR COMMON_INTERCEPT_FUNCTION(memrchr)
+#else
+#define INIT_MEMRCHR
+#endif
+
#if SANITIZER_INTERCEPT_FREXP
INTERCEPTOR(double, frexp, double x, int *exp) {
void *ctx;
COMMON_INTERCEPTOR_ENTER(ctx, frexp, x, exp);
- double res = REAL(frexp)(x, exp);
+ // Assuming frexp() always writes to |exp|.
COMMON_INTERCEPTOR_WRITE_RANGE(ctx, exp, sizeof(*exp));
+ double res = REAL(frexp)(x, exp);
return res;
}
INTERCEPTOR(float, frexpf, float x, int *exp) {
void *ctx;
COMMON_INTERCEPTOR_ENTER(ctx, frexpf, x, exp);
+ // FIXME: under ASan the call below may write to freed memory and corrupt
+ // its metadata. See
+ // https://github.com/google/sanitizers/issues/321.
float res = REAL(frexpf)(x, exp);
COMMON_INTERCEPTOR_WRITE_RANGE(ctx, exp, sizeof(*exp));
return res;
INTERCEPTOR(long double, frexpl, long double x, int *exp) {
void *ctx;
COMMON_INTERCEPTOR_ENTER(ctx, frexpl, x, exp);
+ // FIXME: under ASan the call below may write to freed memory and corrupt
+ // its metadata. See
+ // https://github.com/google/sanitizers/issues/321.
long double res = REAL(frexpl)(x, exp);
COMMON_INTERCEPTOR_WRITE_RANGE(ctx, exp, sizeof(*exp));
return res;
#define INIT_FREXPF_FREXPL \
COMMON_INTERCEPT_FUNCTION(frexpf); \
- COMMON_INTERCEPT_FUNCTION(frexpl)
+ COMMON_INTERCEPT_FUNCTION_LDBL(frexpl)
#else
#define INIT_FREXPF_FREXPL
#endif // SANITIZER_INTERCEPT_FREXPF_FREXPL
-#if SI_NOT_WINDOWS
+#if SI_POSIX
static void write_iovec(void *ctx, struct __sanitizer_iovec *iovec,
SIZE_T iovlen, SIZE_T maxlen) {
for (SIZE_T i = 0; i < iovlen && maxlen; ++i) {
void *ctx;
COMMON_INTERCEPTOR_ENTER(ctx, read, fd, ptr, count);
COMMON_INTERCEPTOR_FD_ACCESS(ctx, fd);
+ // FIXME: under ASan the call below may write to freed memory and corrupt
+ // its metadata. See
+ // https://github.com/google/sanitizers/issues/321.
SSIZE_T res = REAL(read)(fd, ptr, count);
if (res > 0) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, ptr, res);
if (res >= 0 && fd >= 0) COMMON_INTERCEPTOR_FD_ACQUIRE(ctx, fd);
#define INIT_READ
#endif
+#if SANITIZER_INTERCEPT_FREAD
+INTERCEPTOR(SIZE_T, fread, void *ptr, SIZE_T size, SIZE_T nmemb, void *file) {
+ // libc file streams can call user-supplied functions, see fopencookie.
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, fread, ptr, size, nmemb, file);
+ // FIXME: under ASan the call below may write to freed memory and corrupt
+ // its metadata. See
+ // https://github.com/google/sanitizers/issues/321.
+ SIZE_T res = REAL(fread)(ptr, size, nmemb, file);
+ if (res > 0) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, ptr, res * size);
+ return res;
+}
+#define INIT_FREAD COMMON_INTERCEPT_FUNCTION(fread)
+#else
+#define INIT_FREAD
+#endif
+
#if SANITIZER_INTERCEPT_PREAD
INTERCEPTOR(SSIZE_T, pread, int fd, void *ptr, SIZE_T count, OFF_T offset) {
void *ctx;
COMMON_INTERCEPTOR_ENTER(ctx, pread, fd, ptr, count, offset);
COMMON_INTERCEPTOR_FD_ACCESS(ctx, fd);
+ // FIXME: under ASan the call below may write to freed memory and corrupt
+ // its metadata. See
+ // https://github.com/google/sanitizers/issues/321.
SSIZE_T res = REAL(pread)(fd, ptr, count, offset);
if (res > 0) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, ptr, res);
if (res >= 0 && fd >= 0) COMMON_INTERCEPTOR_FD_ACQUIRE(ctx, fd);
void *ctx;
COMMON_INTERCEPTOR_ENTER(ctx, pread64, fd, ptr, count, offset);
COMMON_INTERCEPTOR_FD_ACCESS(ctx, fd);
+ // FIXME: under ASan the call below may write to freed memory and corrupt
+ // its metadata. See
+ // https://github.com/google/sanitizers/issues/321.
SSIZE_T res = REAL(pread64)(fd, ptr, count, offset);
if (res > 0) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, ptr, res);
if (res >= 0 && fd >= 0) COMMON_INTERCEPTOR_FD_ACQUIRE(ctx, fd);
#define INIT_WRITE
#endif
+#if SANITIZER_INTERCEPT_FWRITE
+INTERCEPTOR(SIZE_T, fwrite, const void *p, uptr size, uptr nmemb, void *file) {
+ // libc file streams can call user-supplied functions, see fopencookie.
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, fwrite, p, size, nmemb, file);
+ SIZE_T res = REAL(fwrite)(p, size, nmemb, file);
+ if (res > 0) COMMON_INTERCEPTOR_READ_RANGE(ctx, p, res * size);
+ return res;
+}
+#define INIT_FWRITE COMMON_INTERCEPT_FUNCTION(fwrite)
+#else
+#define INIT_FWRITE
+#endif
+
#if SANITIZER_INTERCEPT_PWRITE
INTERCEPTOR(SSIZE_T, pwrite, int fd, void *ptr, SIZE_T count, OFF_T offset) {
void *ctx;
#define INIT_PWRITEV64
#endif
+#if SANITIZER_INTERCEPT_FGETS
+INTERCEPTOR(char *, fgets, char *s, SIZE_T size, void *file) {
+ // libc file streams can call user-supplied functions, see fopencookie.
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, fgets, s, size, file);
+ // FIXME: under ASan the call below may write to freed memory and corrupt
+ // its metadata. See
+ // https://github.com/google/sanitizers/issues/321.
+ char *res = REAL(fgets)(s, size, file);
+ if (res)
+ COMMON_INTERCEPTOR_WRITE_RANGE(ctx, s, REAL(strlen)(s) + 1);
+ return res;
+}
+#define INIT_FGETS COMMON_INTERCEPT_FUNCTION(fgets)
+#else
+#define INIT_FGETS
+#endif
+
+#if SANITIZER_INTERCEPT_FPUTS
+INTERCEPTOR_WITH_SUFFIX(int, fputs, char *s, void *file) {
+ // libc file streams can call user-supplied functions, see fopencookie.
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, fputs, s, file);
+ if (!SANITIZER_MAC || s) { // `fputs(NULL, file)` is supported on Darwin.
+ COMMON_INTERCEPTOR_READ_RANGE(ctx, s, REAL(strlen)(s) + 1);
+ }
+ return REAL(fputs)(s, file);
+}
+#define INIT_FPUTS COMMON_INTERCEPT_FUNCTION(fputs)
+#else
+#define INIT_FPUTS
+#endif
+
+#if SANITIZER_INTERCEPT_PUTS
+INTERCEPTOR(int, puts, char *s) {
+ // libc file streams can call user-supplied functions, see fopencookie.
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, puts, s);
+ if (!SANITIZER_MAC || s) { // `puts(NULL)` is supported on Darwin.
+ COMMON_INTERCEPTOR_READ_RANGE(ctx, s, REAL(strlen)(s) + 1);
+ }
+ return REAL(puts)(s);
+}
+#define INIT_PUTS COMMON_INTERCEPT_FUNCTION(puts)
+#else
+#define INIT_PUTS
+#endif
+
#if SANITIZER_INTERCEPT_PRCTL
INTERCEPTOR(int, prctl, int option, unsigned long arg2,
unsigned long arg3, // NOLINT
INTERCEPTOR(unsigned long, time, unsigned long *t) {
void *ctx;
COMMON_INTERCEPTOR_ENTER(ctx, time, t);
- unsigned long res = REAL(time)(t);
+ unsigned long local_t;
+ unsigned long res = REAL(time)(&local_t);
if (t && res != (unsigned long)-1) {
COMMON_INTERCEPTOR_WRITE_RANGE(ctx, t, sizeof(*t));
+ *t = local_t;
}
return res;
}
#if SANITIZER_INTERCEPT_LOCALTIME_AND_FRIENDS
static void unpoison_tm(void *ctx, __sanitizer_tm *tm) {
COMMON_INTERCEPTOR_WRITE_RANGE(ctx, tm, sizeof(*tm));
+#if !SANITIZER_SOLARIS
if (tm->tm_zone) {
// Can not use COMMON_INTERCEPTOR_WRITE_RANGE here, because tm->tm_zone
// can point to shared memory and tsan would report a data race.
- COMMON_INTERCEPTOR_INITIALIZE_RANGE(ctx, tm->tm_zone,
+ COMMON_INTERCEPTOR_INITIALIZE_RANGE(tm->tm_zone,
REAL(strlen(tm->tm_zone)) + 1);
}
+#endif
}
INTERCEPTOR(__sanitizer_tm *, localtime, unsigned long *timep) {
void *ctx;
INTERCEPTOR(char *, ctime, unsigned long *timep) {
void *ctx;
COMMON_INTERCEPTOR_ENTER(ctx, ctime, timep);
+ // FIXME: under ASan the call below may write to freed memory and corrupt
+ // its metadata. See
+ // https://github.com/google/sanitizers/issues/321.
char *res = REAL(ctime)(timep);
if (res) {
COMMON_INTERCEPTOR_READ_RANGE(ctx, timep, sizeof(*timep));
INTERCEPTOR(char *, ctime_r, unsigned long *timep, char *result) {
void *ctx;
COMMON_INTERCEPTOR_ENTER(ctx, ctime_r, timep, result);
+ // FIXME: under ASan the call below may write to freed memory and corrupt
+ // its metadata. See
+ // https://github.com/google/sanitizers/issues/321.
char *res = REAL(ctime_r)(timep, result);
if (res) {
COMMON_INTERCEPTOR_READ_RANGE(ctx, timep, sizeof(*timep));
INTERCEPTOR(char *, asctime, __sanitizer_tm *tm) {
void *ctx;
COMMON_INTERCEPTOR_ENTER(ctx, asctime, tm);
+ // FIXME: under ASan the call below may write to freed memory and corrupt
+ // its metadata. See
+ // https://github.com/google/sanitizers/issues/321.
char *res = REAL(asctime)(tm);
if (res) {
COMMON_INTERCEPTOR_READ_RANGE(ctx, tm, sizeof(*tm));
INTERCEPTOR(char *, asctime_r, __sanitizer_tm *tm, char *result) {
void *ctx;
COMMON_INTERCEPTOR_ENTER(ctx, asctime_r, tm, result);
+ // FIXME: under ASan the call below may write to freed memory and corrupt
+ // its metadata. See
+ // https://github.com/google/sanitizers/issues/321.
char *res = REAL(asctime_r)(tm, result);
if (res) {
COMMON_INTERCEPTOR_READ_RANGE(ctx, tm, sizeof(*tm));
}
return res;
}
+INTERCEPTOR(long, mktime, __sanitizer_tm *tm) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, mktime, tm);
+ COMMON_INTERCEPTOR_READ_RANGE(ctx, &tm->tm_sec, sizeof(tm->tm_sec));
+ COMMON_INTERCEPTOR_READ_RANGE(ctx, &tm->tm_min, sizeof(tm->tm_min));
+ COMMON_INTERCEPTOR_READ_RANGE(ctx, &tm->tm_hour, sizeof(tm->tm_hour));
+ COMMON_INTERCEPTOR_READ_RANGE(ctx, &tm->tm_mday, sizeof(tm->tm_mday));
+ COMMON_INTERCEPTOR_READ_RANGE(ctx, &tm->tm_mon, sizeof(tm->tm_mon));
+ COMMON_INTERCEPTOR_READ_RANGE(ctx, &tm->tm_year, sizeof(tm->tm_year));
+ COMMON_INTERCEPTOR_READ_RANGE(ctx, &tm->tm_isdst, sizeof(tm->tm_isdst));
+ long res = REAL(mktime)(tm);
+ if (res != -1) unpoison_tm(ctx, tm);
+ return res;
+}
#define INIT_LOCALTIME_AND_FRIENDS \
COMMON_INTERCEPT_FUNCTION(localtime); \
COMMON_INTERCEPT_FUNCTION(localtime_r); \
COMMON_INTERCEPT_FUNCTION(ctime); \
COMMON_INTERCEPT_FUNCTION(ctime_r); \
COMMON_INTERCEPT_FUNCTION(asctime); \
- COMMON_INTERCEPT_FUNCTION(asctime_r);
+ COMMON_INTERCEPT_FUNCTION(asctime_r); \
+ COMMON_INTERCEPT_FUNCTION(mktime);
#else
#define INIT_LOCALTIME_AND_FRIENDS
#endif // SANITIZER_INTERCEPT_LOCALTIME_AND_FRIENDS
COMMON_INTERCEPTOR_ENTER(ctx, strptime, s, format, tm);
if (format)
COMMON_INTERCEPTOR_READ_RANGE(ctx, format, REAL(strlen)(format) + 1);
+ // FIXME: under ASan the call below may write to freed memory and corrupt
+ // its metadata. See
+ // https://github.com/google/sanitizers/issues/321.
char *res = REAL(strptime)(s, format, tm);
- if (res) {
- COMMON_INTERCEPTOR_READ_RANGE(ctx, s, res - s);
+ COMMON_INTERCEPTOR_READ_STRING(ctx, s, res ? res - s : 0);
+ if (res && tm) {
// Do not call unpoison_tm here, because strptime does not, in fact,
// initialize the entire struct tm. For example, tm_zone pointer is left
// uninitialized.
- if (tm) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, tm, sizeof(*tm));
+ COMMON_INTERCEPTOR_WRITE_RANGE(ctx, tm, sizeof(*tm));
}
return res;
}
#define INIT_STRPTIME
#endif
-#if SANITIZER_INTERCEPT_SCANF
-
-#include "sanitizer_common_interceptors_scanf.inc"
+#if SANITIZER_INTERCEPT_SCANF || SANITIZER_INTERCEPT_PRINTF
+#include "sanitizer_common_interceptors_format.inc"
-#define VSCANF_INTERCEPTOR_IMPL(vname, allowGnuMalloc, ...) \
+#define FORMAT_INTERCEPTOR_IMPL(name, vname, ...) \
+ { \
+ void *ctx; \
+ va_list ap; \
+ va_start(ap, format); \
+ COMMON_INTERCEPTOR_ENTER(ctx, vname, __VA_ARGS__, ap); \
+ int res = WRAP(vname)(__VA_ARGS__, ap); \
+ va_end(ap); \
+ return res; \
+ }
+
+#endif
+
+#if SANITIZER_INTERCEPT_SCANF
+
+#define VSCANF_INTERCEPTOR_IMPL(vname, allowGnuMalloc, ...) \
{ \
void *ctx; \
COMMON_INTERCEPTOR_ENTER(ctx, vname, __VA_ARGS__); \
VSCANF_INTERCEPTOR_IMPL(__isoc99_vfscanf, false, stream, format, ap)
#endif // SANITIZER_INTERCEPT_ISOC99_SCANF
-#define SCANF_INTERCEPTOR_IMPL(name, vname, ...) \
- { \
- void *ctx; \
- va_list ap; \
- va_start(ap, format); \
- COMMON_INTERCEPTOR_ENTER(ctx, vname, __VA_ARGS__, ap); \
- int res = vname(__VA_ARGS__, ap); \
- va_end(ap); \
- return res; \
- }
-
INTERCEPTOR(int, scanf, const char *format, ...)
-SCANF_INTERCEPTOR_IMPL(scanf, vscanf, format)
+FORMAT_INTERCEPTOR_IMPL(scanf, vscanf, format)
INTERCEPTOR(int, fscanf, void *stream, const char *format, ...)
-SCANF_INTERCEPTOR_IMPL(fscanf, vfscanf, stream, format)
+FORMAT_INTERCEPTOR_IMPL(fscanf, vfscanf, stream, format)
INTERCEPTOR(int, sscanf, const char *str, const char *format, ...)
-SCANF_INTERCEPTOR_IMPL(sscanf, vsscanf, str, format)
+FORMAT_INTERCEPTOR_IMPL(sscanf, vsscanf, str, format)
#if SANITIZER_INTERCEPT_ISOC99_SCANF
INTERCEPTOR(int, __isoc99_scanf, const char *format, ...)
-SCANF_INTERCEPTOR_IMPL(__isoc99_scanf, __isoc99_vscanf, format)
+FORMAT_INTERCEPTOR_IMPL(__isoc99_scanf, __isoc99_vscanf, format)
INTERCEPTOR(int, __isoc99_fscanf, void *stream, const char *format, ...)
-SCANF_INTERCEPTOR_IMPL(__isoc99_fscanf, __isoc99_vfscanf, stream, format)
+FORMAT_INTERCEPTOR_IMPL(__isoc99_fscanf, __isoc99_vfscanf, stream, format)
INTERCEPTOR(int, __isoc99_sscanf, const char *str, const char *format, ...)
-SCANF_INTERCEPTOR_IMPL(__isoc99_sscanf, __isoc99_vsscanf, str, format)
+FORMAT_INTERCEPTOR_IMPL(__isoc99_sscanf, __isoc99_vsscanf, str, format)
#endif
#endif
#if SANITIZER_INTERCEPT_SCANF
#define INIT_SCANF \
- COMMON_INTERCEPT_FUNCTION(scanf); \
- COMMON_INTERCEPT_FUNCTION(sscanf); \
- COMMON_INTERCEPT_FUNCTION(fscanf); \
- COMMON_INTERCEPT_FUNCTION(vscanf); \
- COMMON_INTERCEPT_FUNCTION(vsscanf); \
- COMMON_INTERCEPT_FUNCTION(vfscanf);
+ COMMON_INTERCEPT_FUNCTION_LDBL(scanf); \
+ COMMON_INTERCEPT_FUNCTION_LDBL(sscanf); \
+ COMMON_INTERCEPT_FUNCTION_LDBL(fscanf); \
+ COMMON_INTERCEPT_FUNCTION_LDBL(vscanf); \
+ COMMON_INTERCEPT_FUNCTION_LDBL(vsscanf); \
+ COMMON_INTERCEPT_FUNCTION_LDBL(vfscanf);
#else
#define INIT_SCANF
#endif
#define INIT_ISOC99_SCANF
#endif
+#if SANITIZER_INTERCEPT_PRINTF
+
+#define VPRINTF_INTERCEPTOR_ENTER(vname, ...) \
+ void *ctx; \
+ COMMON_INTERCEPTOR_ENTER(ctx, vname, __VA_ARGS__); \
+ va_list aq; \
+ va_copy(aq, ap);
+
+#define VPRINTF_INTERCEPTOR_RETURN() \
+ va_end(aq);
+
+#define VPRINTF_INTERCEPTOR_IMPL(vname, ...) \
+ { \
+ VPRINTF_INTERCEPTOR_ENTER(vname, __VA_ARGS__); \
+ if (common_flags()->check_printf) \
+ printf_common(ctx, format, aq); \
+ int res = REAL(vname)(__VA_ARGS__); \
+ VPRINTF_INTERCEPTOR_RETURN(); \
+ return res; \
+ }
+
+// FIXME: under ASan the REAL() call below may write to freed memory and
+// corrupt its metadata. See
+// https://github.com/google/sanitizers/issues/321.
+#define VSPRINTF_INTERCEPTOR_IMPL(vname, str, ...) \
+ { \
+ VPRINTF_INTERCEPTOR_ENTER(vname, str, __VA_ARGS__) \
+ if (common_flags()->check_printf) { \
+ printf_common(ctx, format, aq); \
+ } \
+ int res = REAL(vname)(str, __VA_ARGS__); \
+ if (res >= 0) { \
+ COMMON_INTERCEPTOR_WRITE_RANGE(ctx, str, res + 1); \
+ } \
+ VPRINTF_INTERCEPTOR_RETURN(); \
+ return res; \
+ }
+
+// FIXME: under ASan the REAL() call below may write to freed memory and
+// corrupt its metadata. See
+// https://github.com/google/sanitizers/issues/321.
+#define VSNPRINTF_INTERCEPTOR_IMPL(vname, str, size, ...) \
+ { \
+ VPRINTF_INTERCEPTOR_ENTER(vname, str, size, __VA_ARGS__) \
+ if (common_flags()->check_printf) { \
+ printf_common(ctx, format, aq); \
+ } \
+ int res = REAL(vname)(str, size, __VA_ARGS__); \
+ if (res >= 0) { \
+ COMMON_INTERCEPTOR_WRITE_RANGE(ctx, str, Min(size, (SIZE_T)(res + 1))); \
+ } \
+ VPRINTF_INTERCEPTOR_RETURN(); \
+ return res; \
+ }
+
+// FIXME: under ASan the REAL() call below may write to freed memory and
+// corrupt its metadata. See
+// https://github.com/google/sanitizers/issues/321.
+#define VASPRINTF_INTERCEPTOR_IMPL(vname, strp, ...) \
+ { \
+ VPRINTF_INTERCEPTOR_ENTER(vname, strp, __VA_ARGS__) \
+ COMMON_INTERCEPTOR_WRITE_RANGE(ctx, strp, sizeof(char *)); \
+ if (common_flags()->check_printf) { \
+ printf_common(ctx, format, aq); \
+ } \
+ int res = REAL(vname)(strp, __VA_ARGS__); \
+ if (res >= 0) { \
+ COMMON_INTERCEPTOR_WRITE_RANGE(ctx, *strp, res + 1); \
+ } \
+ VPRINTF_INTERCEPTOR_RETURN(); \
+ return res; \
+ }
+
+INTERCEPTOR(int, vprintf, const char *format, va_list ap)
+VPRINTF_INTERCEPTOR_IMPL(vprintf, format, ap)
+
+INTERCEPTOR(int, vfprintf, __sanitizer_FILE *stream, const char *format,
+ va_list ap)
+VPRINTF_INTERCEPTOR_IMPL(vfprintf, stream, format, ap)
+
+INTERCEPTOR(int, vsnprintf, char *str, SIZE_T size, const char *format,
+ va_list ap)
+VSNPRINTF_INTERCEPTOR_IMPL(vsnprintf, str, size, format, ap)
+
+#if SANITIZER_INTERCEPT___PRINTF_CHK
+INTERCEPTOR(int, __vsnprintf_chk, char *str, SIZE_T size, int flag,
+ SIZE_T size_to, const char *format, va_list ap)
+VSNPRINTF_INTERCEPTOR_IMPL(vsnprintf, str, size, format, ap)
+#endif
+
+#if SANITIZER_INTERCEPT_PRINTF_L
+INTERCEPTOR(int, vsnprintf_l, char *str, SIZE_T size, void *loc,
+ const char *format, va_list ap)
+VSNPRINTF_INTERCEPTOR_IMPL(vsnprintf_l, str, size, loc, format, ap)
+
+INTERCEPTOR(int, snprintf_l, char *str, SIZE_T size, void *loc,
+ const char *format, ...)
+FORMAT_INTERCEPTOR_IMPL(snprintf_l, vsnprintf_l, str, size, loc, format)
+#endif // SANITIZER_INTERCEPT_PRINTF_L
+
+INTERCEPTOR(int, vsprintf, char *str, const char *format, va_list ap)
+VSPRINTF_INTERCEPTOR_IMPL(vsprintf, str, format, ap)
+
+#if SANITIZER_INTERCEPT___PRINTF_CHK
+INTERCEPTOR(int, __vsprintf_chk, char *str, int flag, SIZE_T size_to,
+ const char *format, va_list ap)
+VSPRINTF_INTERCEPTOR_IMPL(vsprintf, str, format, ap)
+#endif
+
+INTERCEPTOR(int, vasprintf, char **strp, const char *format, va_list ap)
+VASPRINTF_INTERCEPTOR_IMPL(vasprintf, strp, format, ap)
+
+#if SANITIZER_INTERCEPT_ISOC99_PRINTF
+INTERCEPTOR(int, __isoc99_vprintf, const char *format, va_list ap)
+VPRINTF_INTERCEPTOR_IMPL(__isoc99_vprintf, format, ap)
+
+INTERCEPTOR(int, __isoc99_vfprintf, __sanitizer_FILE *stream,
+ const char *format, va_list ap)
+VPRINTF_INTERCEPTOR_IMPL(__isoc99_vfprintf, stream, format, ap)
+
+INTERCEPTOR(int, __isoc99_vsnprintf, char *str, SIZE_T size, const char *format,
+ va_list ap)
+VSNPRINTF_INTERCEPTOR_IMPL(__isoc99_vsnprintf, str, size, format, ap)
+
+INTERCEPTOR(int, __isoc99_vsprintf, char *str, const char *format,
+ va_list ap)
+VSPRINTF_INTERCEPTOR_IMPL(__isoc99_vsprintf, str, format,
+ ap)
+
+#endif // SANITIZER_INTERCEPT_ISOC99_PRINTF
+
+INTERCEPTOR(int, printf, const char *format, ...)
+FORMAT_INTERCEPTOR_IMPL(printf, vprintf, format)
+
+INTERCEPTOR(int, fprintf, __sanitizer_FILE *stream, const char *format, ...)
+FORMAT_INTERCEPTOR_IMPL(fprintf, vfprintf, stream, format)
+
+#if SANITIZER_INTERCEPT___PRINTF_CHK
+INTERCEPTOR(int, __fprintf_chk, __sanitizer_FILE *stream, SIZE_T size,
+ const char *format, ...)
+FORMAT_INTERCEPTOR_IMPL(__fprintf_chk, vfprintf, stream, format)
+#endif
+
+INTERCEPTOR(int, sprintf, char *str, const char *format, ...) // NOLINT
+FORMAT_INTERCEPTOR_IMPL(sprintf, vsprintf, str, format) // NOLINT
+
+#if SANITIZER_INTERCEPT___PRINTF_CHK
+INTERCEPTOR(int, __sprintf_chk, char *str, int flag, SIZE_T size_to,
+ const char *format, ...) // NOLINT
+FORMAT_INTERCEPTOR_IMPL(__sprintf_chk, vsprintf, str, format) // NOLINT
+#endif
+
+INTERCEPTOR(int, snprintf, char *str, SIZE_T size, const char *format, ...)
+FORMAT_INTERCEPTOR_IMPL(snprintf, vsnprintf, str, size, format)
+
+#if SANITIZER_INTERCEPT___PRINTF_CHK
+INTERCEPTOR(int, __snprintf_chk, char *str, SIZE_T size, int flag,
+ SIZE_T size_to, const char *format, ...) // NOLINT
+FORMAT_INTERCEPTOR_IMPL(__snprintf_chk, vsnprintf, str, size, format) // NOLINT
+#endif
+
+INTERCEPTOR(int, asprintf, char **strp, const char *format, ...)
+FORMAT_INTERCEPTOR_IMPL(asprintf, vasprintf, strp, format)
+
+#if SANITIZER_INTERCEPT_ISOC99_PRINTF
+INTERCEPTOR(int, __isoc99_printf, const char *format, ...)
+FORMAT_INTERCEPTOR_IMPL(__isoc99_printf, __isoc99_vprintf, format)
+
+INTERCEPTOR(int, __isoc99_fprintf, __sanitizer_FILE *stream, const char *format,
+ ...)
+FORMAT_INTERCEPTOR_IMPL(__isoc99_fprintf, __isoc99_vfprintf, stream, format)
+
+INTERCEPTOR(int, __isoc99_sprintf, char *str, const char *format, ...)
+FORMAT_INTERCEPTOR_IMPL(__isoc99_sprintf, __isoc99_vsprintf, str, format)
+
+INTERCEPTOR(int, __isoc99_snprintf, char *str, SIZE_T size,
+ const char *format, ...)
+FORMAT_INTERCEPTOR_IMPL(__isoc99_snprintf, __isoc99_vsnprintf, str, size,
+ format)
+
+#endif // SANITIZER_INTERCEPT_ISOC99_PRINTF
+
+#endif // SANITIZER_INTERCEPT_PRINTF
+
+#if SANITIZER_INTERCEPT_PRINTF
+#define INIT_PRINTF \
+ COMMON_INTERCEPT_FUNCTION_LDBL(printf); \
+ COMMON_INTERCEPT_FUNCTION_LDBL(sprintf); \
+ COMMON_INTERCEPT_FUNCTION_LDBL(snprintf); \
+ COMMON_INTERCEPT_FUNCTION_LDBL(asprintf); \
+ COMMON_INTERCEPT_FUNCTION_LDBL(fprintf); \
+ COMMON_INTERCEPT_FUNCTION_LDBL(vprintf); \
+ COMMON_INTERCEPT_FUNCTION_LDBL(vsprintf); \
+ COMMON_INTERCEPT_FUNCTION_LDBL(vsnprintf); \
+ COMMON_INTERCEPT_FUNCTION_LDBL(vasprintf); \
+ COMMON_INTERCEPT_FUNCTION_LDBL(vfprintf);
+#else
+#define INIT_PRINTF
+#endif
+
+#if SANITIZER_INTERCEPT___PRINTF_CHK
+#define INIT___PRINTF_CHK \
+ COMMON_INTERCEPT_FUNCTION(__sprintf_chk); \
+ COMMON_INTERCEPT_FUNCTION(__snprintf_chk); \
+ COMMON_INTERCEPT_FUNCTION(__vsprintf_chk); \
+ COMMON_INTERCEPT_FUNCTION(__vsnprintf_chk); \
+ COMMON_INTERCEPT_FUNCTION(__fprintf_chk);
+#else
+#define INIT___PRINTF_CHK
+#endif
+
+#if SANITIZER_INTERCEPT_PRINTF_L
+#define INIT_PRINTF_L \
+ COMMON_INTERCEPT_FUNCTION(snprintf_l); \
+ COMMON_INTERCEPT_FUNCTION(vsnprintf_l);
+#else
+#define INIT_PRINTF_L
+#endif
+
+#if SANITIZER_INTERCEPT_ISOC99_PRINTF
+#define INIT_ISOC99_PRINTF \
+ COMMON_INTERCEPT_FUNCTION(__isoc99_printf); \
+ COMMON_INTERCEPT_FUNCTION(__isoc99_sprintf); \
+ COMMON_INTERCEPT_FUNCTION(__isoc99_snprintf); \
+ COMMON_INTERCEPT_FUNCTION(__isoc99_fprintf); \
+ COMMON_INTERCEPT_FUNCTION(__isoc99_vprintf); \
+ COMMON_INTERCEPT_FUNCTION(__isoc99_vsprintf); \
+ COMMON_INTERCEPT_FUNCTION(__isoc99_vsnprintf); \
+ COMMON_INTERCEPT_FUNCTION(__isoc99_vfprintf);
+#else
+#define INIT_ISOC99_PRINTF
+#endif
+
#if SANITIZER_INTERCEPT_IOCTL
#include "sanitizer_common_interceptors_ioctl.inc"
-INTERCEPTOR(int, ioctl, int d, unsigned request, void *arg) {
- void *ctx;
+#include "sanitizer_interceptors_ioctl_netbsd.inc"
+INTERCEPTOR(int, ioctl, int d, unsigned long request, ...) {
+ // We need a frame pointer, because we call into ioctl_common_[pre|post] which
+ // can trigger a report and we need to be able to unwind through this
+ // function. On Mac in debug mode we might not have a frame pointer, because
+ // ioctl_common_[pre|post] doesn't get inlined here.
+ ENABLE_FRAME_POINTER;
+
+ void *ctx;
+ va_list ap;
+ va_start(ap, request);
+ void *arg = va_arg(ap, void *);
+ va_end(ap);
COMMON_INTERCEPTOR_ENTER(ctx, ioctl, d, request, arg);
CHECK(ioctl_initialized);
// This effectively disables ioctl handling in TSan.
if (!common_flags()->handle_ioctl) return REAL(ioctl)(d, request, arg);
+ // Although request is unsigned long, the rest of the interceptor uses it
+ // as just "unsigned" to save space, because we know that all values fit in
+ // "unsigned" - they are compile-time constants.
+
const ioctl_desc *desc = ioctl_lookup(request);
- if (!desc) Printf("WARNING: unknown ioctl %x\n", request);
+ ioctl_desc decoded_desc;
+ if (!desc) {
+ VPrintf(2, "Decoding unknown ioctl 0x%x\n", request);
+ if (!ioctl_decode(request, &decoded_desc))
+ Printf("WARNING: failed decoding unknown ioctl 0x%x\n", request);
+ else
+ desc = &decoded_desc;
+ }
if (desc) ioctl_common_pre(ctx, desc, d, request, arg);
int res = REAL(ioctl)(d, request, arg);
#define INIT_IOCTL
#endif
+#if SANITIZER_POSIX
+UNUSED static void unpoison_passwd(void *ctx, __sanitizer_passwd *pwd) {
+ if (pwd) {
+ COMMON_INTERCEPTOR_WRITE_RANGE(ctx, pwd, sizeof(*pwd));
+ if (pwd->pw_name)
+ COMMON_INTERCEPTOR_WRITE_RANGE(ctx, pwd->pw_name,
+ REAL(strlen)(pwd->pw_name) + 1);
+ if (pwd->pw_passwd)
+ COMMON_INTERCEPTOR_WRITE_RANGE(ctx, pwd->pw_passwd,
+ REAL(strlen)(pwd->pw_passwd) + 1);
+#if !SANITIZER_ANDROID
+ if (pwd->pw_gecos)
+ COMMON_INTERCEPTOR_WRITE_RANGE(ctx, pwd->pw_gecos,
+ REAL(strlen)(pwd->pw_gecos) + 1);
+#endif
+#if SANITIZER_MAC || SANITIZER_FREEBSD || SANITIZER_NETBSD || SANITIZER_OPENBSD
+ if (pwd->pw_class)
+ COMMON_INTERCEPTOR_WRITE_RANGE(ctx, pwd->pw_class,
+ REAL(strlen)(pwd->pw_class) + 1);
+#endif
+ if (pwd->pw_dir)
+ COMMON_INTERCEPTOR_WRITE_RANGE(ctx, pwd->pw_dir,
+ REAL(strlen)(pwd->pw_dir) + 1);
+ if (pwd->pw_shell)
+ COMMON_INTERCEPTOR_WRITE_RANGE(ctx, pwd->pw_shell,
+ REAL(strlen)(pwd->pw_shell) + 1);
+ }
+}
+
+UNUSED static void unpoison_group(void *ctx, __sanitizer_group *grp) {
+ if (grp) {
+ COMMON_INTERCEPTOR_WRITE_RANGE(ctx, grp, sizeof(*grp));
+ if (grp->gr_name)
+ COMMON_INTERCEPTOR_WRITE_RANGE(ctx, grp->gr_name,
+ REAL(strlen)(grp->gr_name) + 1);
+ if (grp->gr_passwd)
+ COMMON_INTERCEPTOR_WRITE_RANGE(ctx, grp->gr_passwd,
+ REAL(strlen)(grp->gr_passwd) + 1);
+ char **p = grp->gr_mem;
+ for (; *p; ++p) {
+ COMMON_INTERCEPTOR_WRITE_RANGE(ctx, *p, REAL(strlen)(*p) + 1);
+ }
+ COMMON_INTERCEPTOR_WRITE_RANGE(ctx, grp->gr_mem,
+ (p - grp->gr_mem + 1) * sizeof(*p));
+ }
+}
+#endif // SANITIZER_POSIX
+
#if SANITIZER_INTERCEPT_GETPWNAM_AND_FRIENDS
-INTERCEPTOR(void *, getpwnam, const char *name) {
+INTERCEPTOR(__sanitizer_passwd *, getpwnam, const char *name) {
void *ctx;
COMMON_INTERCEPTOR_ENTER(ctx, getpwnam, name);
- COMMON_INTERCEPTOR_READ_RANGE(ctx, name, REAL(strlen)(name) + 1);
- void *res = REAL(getpwnam)(name);
- if (res != 0) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, res, struct_passwd_sz);
+ if (name)
+ COMMON_INTERCEPTOR_READ_RANGE(ctx, name, REAL(strlen)(name) + 1);
+ __sanitizer_passwd *res = REAL(getpwnam)(name);
+ unpoison_passwd(ctx, res);
return res;
}
-INTERCEPTOR(void *, getpwuid, u32 uid) {
+INTERCEPTOR(__sanitizer_passwd *, getpwuid, u32 uid) {
void *ctx;
COMMON_INTERCEPTOR_ENTER(ctx, getpwuid, uid);
- void *res = REAL(getpwuid)(uid);
- if (res != 0) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, res, struct_passwd_sz);
+ __sanitizer_passwd *res = REAL(getpwuid)(uid);
+ unpoison_passwd(ctx, res);
return res;
}
-INTERCEPTOR(void *, getgrnam, const char *name) {
+INTERCEPTOR(__sanitizer_group *, getgrnam, const char *name) {
void *ctx;
COMMON_INTERCEPTOR_ENTER(ctx, getgrnam, name);
COMMON_INTERCEPTOR_READ_RANGE(ctx, name, REAL(strlen)(name) + 1);
- void *res = REAL(getgrnam)(name);
- if (res != 0) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, res, struct_group_sz);
+ __sanitizer_group *res = REAL(getgrnam)(name);
+ unpoison_group(ctx, res);
return res;
}
-INTERCEPTOR(void *, getgrgid, u32 gid) {
+INTERCEPTOR(__sanitizer_group *, getgrgid, u32 gid) {
void *ctx;
COMMON_INTERCEPTOR_ENTER(ctx, getgrgid, gid);
- void *res = REAL(getgrgid)(gid);
- if (res != 0) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, res, struct_group_sz);
+ __sanitizer_group *res = REAL(getgrgid)(gid);
+ unpoison_group(ctx, res);
return res;
}
#define INIT_GETPWNAM_AND_FRIENDS \
#endif
#if SANITIZER_INTERCEPT_GETPWNAM_R_AND_FRIENDS
-INTERCEPTOR(int, getpwnam_r, const char *name, void *pwd, char *buf,
- SIZE_T buflen, void **result) {
+INTERCEPTOR(int, getpwnam_r, const char *name, __sanitizer_passwd *pwd,
+ char *buf, SIZE_T buflen, __sanitizer_passwd **result) {
void *ctx;
COMMON_INTERCEPTOR_ENTER(ctx, getpwnam_r, name, pwd, buf, buflen, result);
COMMON_INTERCEPTOR_READ_RANGE(ctx, name, REAL(strlen)(name) + 1);
+ // FIXME: under ASan the call below may write to freed memory and corrupt
+ // its metadata. See
+ // https://github.com/google/sanitizers/issues/321.
int res = REAL(getpwnam_r)(name, pwd, buf, buflen, result);
- if (!res) {
- COMMON_INTERCEPTOR_WRITE_RANGE(ctx, pwd, struct_passwd_sz);
- COMMON_INTERCEPTOR_WRITE_RANGE(ctx, buf, buflen);
- }
+ if (!res && result)
+ unpoison_passwd(ctx, *result);
+ if (result) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, result, sizeof(*result));
return res;
}
-INTERCEPTOR(int, getpwuid_r, u32 uid, void *pwd, char *buf, SIZE_T buflen,
- void **result) {
+INTERCEPTOR(int, getpwuid_r, u32 uid, __sanitizer_passwd *pwd, char *buf,
+ SIZE_T buflen, __sanitizer_passwd **result) {
void *ctx;
COMMON_INTERCEPTOR_ENTER(ctx, getpwuid_r, uid, pwd, buf, buflen, result);
+ // FIXME: under ASan the call below may write to freed memory and corrupt
+ // its metadata. See
+ // https://github.com/google/sanitizers/issues/321.
int res = REAL(getpwuid_r)(uid, pwd, buf, buflen, result);
- if (!res) {
- COMMON_INTERCEPTOR_WRITE_RANGE(ctx, pwd, struct_passwd_sz);
- COMMON_INTERCEPTOR_WRITE_RANGE(ctx, buf, buflen);
- }
+ if (!res && result)
+ unpoison_passwd(ctx, *result);
+ if (result) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, result, sizeof(*result));
return res;
}
-INTERCEPTOR(int, getgrnam_r, const char *name, void *grp, char *buf,
- SIZE_T buflen, void **result) {
+INTERCEPTOR(int, getgrnam_r, const char *name, __sanitizer_group *grp,
+ char *buf, SIZE_T buflen, __sanitizer_group **result) {
void *ctx;
COMMON_INTERCEPTOR_ENTER(ctx, getgrnam_r, name, grp, buf, buflen, result);
COMMON_INTERCEPTOR_READ_RANGE(ctx, name, REAL(strlen)(name) + 1);
+ // FIXME: under ASan the call below may write to freed memory and corrupt
+ // its metadata. See
+ // https://github.com/google/sanitizers/issues/321.
int res = REAL(getgrnam_r)(name, grp, buf, buflen, result);
- if (!res) {
- COMMON_INTERCEPTOR_WRITE_RANGE(ctx, grp, struct_group_sz);
- COMMON_INTERCEPTOR_WRITE_RANGE(ctx, buf, buflen);
- }
+ if (!res && result)
+ unpoison_group(ctx, *result);
+ if (result) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, result, sizeof(*result));
return res;
}
-INTERCEPTOR(int, getgrgid_r, u32 gid, void *grp, char *buf, SIZE_T buflen,
- void **result) {
+INTERCEPTOR(int, getgrgid_r, u32 gid, __sanitizer_group *grp, char *buf,
+ SIZE_T buflen, __sanitizer_group **result) {
void *ctx;
COMMON_INTERCEPTOR_ENTER(ctx, getgrgid_r, gid, grp, buf, buflen, result);
+ // FIXME: under ASan the call below may write to freed memory and corrupt
+ // its metadata. See
+ // https://github.com/google/sanitizers/issues/321.
int res = REAL(getgrgid_r)(gid, grp, buf, buflen, result);
- if (!res) {
- COMMON_INTERCEPTOR_WRITE_RANGE(ctx, grp, struct_group_sz);
- COMMON_INTERCEPTOR_WRITE_RANGE(ctx, buf, buflen);
- }
+ if (!res && result)
+ unpoison_group(ctx, *result);
+ if (result) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, result, sizeof(*result));
return res;
}
#define INIT_GETPWNAM_R_AND_FRIENDS \
#define INIT_GETPWNAM_R_AND_FRIENDS
#endif
+#if SANITIZER_INTERCEPT_GETPWENT
+INTERCEPTOR(__sanitizer_passwd *, getpwent, int dummy) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, getpwent, dummy);
+ __sanitizer_passwd *res = REAL(getpwent)(dummy);
+ unpoison_passwd(ctx, res);
+ return res;
+}
+INTERCEPTOR(__sanitizer_group *, getgrent, int dummy) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, getgrent, dummy);
+ __sanitizer_group *res = REAL(getgrent)(dummy);
+ unpoison_group(ctx, res);
+ return res;
+}
+#define INIT_GETPWENT \
+ COMMON_INTERCEPT_FUNCTION(getpwent); \
+ COMMON_INTERCEPT_FUNCTION(getgrent);
+#else
+#define INIT_GETPWENT
+#endif
+
+#if SANITIZER_INTERCEPT_FGETPWENT
+INTERCEPTOR(__sanitizer_passwd *, fgetpwent, void *fp) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, fgetpwent, fp);
+ __sanitizer_passwd *res = REAL(fgetpwent)(fp);
+ unpoison_passwd(ctx, res);
+ return res;
+}
+INTERCEPTOR(__sanitizer_group *, fgetgrent, void *fp) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, fgetgrent, fp);
+ __sanitizer_group *res = REAL(fgetgrent)(fp);
+ unpoison_group(ctx, res);
+ return res;
+}
+#define INIT_FGETPWENT \
+ COMMON_INTERCEPT_FUNCTION(fgetpwent); \
+ COMMON_INTERCEPT_FUNCTION(fgetgrent);
+#else
+#define INIT_FGETPWENT
+#endif
+
+#if SANITIZER_INTERCEPT_GETPWENT_R
+INTERCEPTOR(int, getpwent_r, __sanitizer_passwd *pwbuf, char *buf,
+ SIZE_T buflen, __sanitizer_passwd **pwbufp) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, getpwent_r, pwbuf, buf, buflen, pwbufp);
+ // FIXME: under ASan the call below may write to freed memory and corrupt
+ // its metadata. See
+ // https://github.com/google/sanitizers/issues/321.
+ int res = REAL(getpwent_r)(pwbuf, buf, buflen, pwbufp);
+ if (!res && pwbufp)
+ unpoison_passwd(ctx, *pwbufp);
+ if (pwbufp) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, pwbufp, sizeof(*pwbufp));
+ return res;
+}
+INTERCEPTOR(int, getgrent_r, __sanitizer_group *pwbuf, char *buf, SIZE_T buflen,
+ __sanitizer_group **pwbufp) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, getgrent_r, pwbuf, buf, buflen, pwbufp);
+ // FIXME: under ASan the call below may write to freed memory and corrupt
+ // its metadata. See
+ // https://github.com/google/sanitizers/issues/321.
+ int res = REAL(getgrent_r)(pwbuf, buf, buflen, pwbufp);
+ if (!res && pwbufp)
+ unpoison_group(ctx, *pwbufp);
+ if (pwbufp) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, pwbufp, sizeof(*pwbufp));
+ return res;
+}
+#define INIT_GETPWENT_R \
+ COMMON_INTERCEPT_FUNCTION(getpwent_r); \
+ COMMON_INTERCEPT_FUNCTION(getgrent_r);
+#else
+#define INIT_GETPWENT_R
+#endif
+
+#if SANITIZER_INTERCEPT_FGETPWENT_R
+INTERCEPTOR(int, fgetpwent_r, void *fp, __sanitizer_passwd *pwbuf, char *buf,
+ SIZE_T buflen, __sanitizer_passwd **pwbufp) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, fgetpwent_r, fp, pwbuf, buf, buflen, pwbufp);
+ // FIXME: under ASan the call below may write to freed memory and corrupt
+ // its metadata. See
+ // https://github.com/google/sanitizers/issues/321.
+ int res = REAL(fgetpwent_r)(fp, pwbuf, buf, buflen, pwbufp);
+ if (!res && pwbufp)
+ unpoison_passwd(ctx, *pwbufp);
+ if (pwbufp) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, pwbufp, sizeof(*pwbufp));
+ return res;
+}
+#define INIT_FGETPWENT_R \
+ COMMON_INTERCEPT_FUNCTION(fgetpwent_r);
+#else
+#define INIT_FGETPWENT_R
+#endif
+
+#if SANITIZER_INTERCEPT_FGETGRENT_R
+INTERCEPTOR(int, fgetgrent_r, void *fp, __sanitizer_group *pwbuf, char *buf,
+ SIZE_T buflen, __sanitizer_group **pwbufp) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, fgetgrent_r, fp, pwbuf, buf, buflen, pwbufp);
+ // FIXME: under ASan the call below may write to freed memory and corrupt
+ // its metadata. See
+ // https://github.com/google/sanitizers/issues/321.
+ int res = REAL(fgetgrent_r)(fp, pwbuf, buf, buflen, pwbufp);
+ if (!res && pwbufp)
+ unpoison_group(ctx, *pwbufp);
+ if (pwbufp) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, pwbufp, sizeof(*pwbufp));
+ return res;
+}
+#define INIT_FGETGRENT_R \
+ COMMON_INTERCEPT_FUNCTION(fgetgrent_r);
+#else
+#define INIT_FGETGRENT_R
+#endif
+
+#if SANITIZER_INTERCEPT_SETPWENT
+// The only thing these interceptors do is disable any nested interceptors.
+// These functions may open nss modules and call uninstrumented functions from
+// them, and we don't want things like strlen() to trigger.
+INTERCEPTOR(void, setpwent, int dummy) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, setpwent, dummy);
+ REAL(setpwent)(dummy);
+}
+INTERCEPTOR(void, endpwent, int dummy) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, endpwent, dummy);
+ REAL(endpwent)(dummy);
+}
+INTERCEPTOR(void, setgrent, int dummy) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, setgrent, dummy);
+ REAL(setgrent)(dummy);
+}
+INTERCEPTOR(void, endgrent, int dummy) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, endgrent, dummy);
+ REAL(endgrent)(dummy);
+}
+#define INIT_SETPWENT \
+ COMMON_INTERCEPT_FUNCTION(setpwent); \
+ COMMON_INTERCEPT_FUNCTION(endpwent); \
+ COMMON_INTERCEPT_FUNCTION(setgrent); \
+ COMMON_INTERCEPT_FUNCTION(endgrent);
+#else
+#define INIT_SETPWENT
+#endif
+
#if SANITIZER_INTERCEPT_CLOCK_GETTIME
INTERCEPTOR(int, clock_getres, u32 clk_id, void *tp) {
void *ctx;
COMMON_INTERCEPTOR_ENTER(ctx, clock_getres, clk_id, tp);
+ // FIXME: under ASan the call below may write to freed memory and corrupt
+ // its metadata. See
+ // https://github.com/google/sanitizers/issues/321.
int res = REAL(clock_getres)(clk_id, tp);
if (!res && tp) {
COMMON_INTERCEPTOR_WRITE_RANGE(ctx, tp, struct_timespec_sz);
INTERCEPTOR(int, clock_gettime, u32 clk_id, void *tp) {
void *ctx;
COMMON_INTERCEPTOR_ENTER(ctx, clock_gettime, clk_id, tp);
+ // FIXME: under ASan the call below may write to freed memory and corrupt
+ // its metadata. See
+ // https://github.com/google/sanitizers/issues/321.
int res = REAL(clock_gettime)(clk_id, tp);
if (!res) {
COMMON_INTERCEPTOR_WRITE_RANGE(ctx, tp, struct_timespec_sz);
}
return res;
}
+namespace __sanitizer {
+extern "C" {
+int real_clock_gettime(u32 clk_id, void *tp) {
+ if (COMMON_INTERCEPTOR_NOTHING_IS_INITIALIZED)
+ return internal_clock_gettime(clk_id, tp);
+ return REAL(clock_gettime)(clk_id, tp);
+}
+} // extern "C"
+} // namespace __sanitizer
INTERCEPTOR(int, clock_settime, u32 clk_id, const void *tp) {
void *ctx;
COMMON_INTERCEPTOR_ENTER(ctx, clock_settime, clk_id, tp);
INTERCEPTOR(int, getitimer, int which, void *curr_value) {
void *ctx;
COMMON_INTERCEPTOR_ENTER(ctx, getitimer, which, curr_value);
+ // FIXME: under ASan the call below may write to freed memory and corrupt
+ // its metadata. See
+ // https://github.com/google/sanitizers/issues/321.
int res = REAL(getitimer)(which, curr_value);
if (!res && curr_value) {
COMMON_INTERCEPTOR_WRITE_RANGE(ctx, curr_value, struct_itimerval_sz);
INTERCEPTOR(int, setitimer, int which, const void *new_value, void *old_value) {
void *ctx;
COMMON_INTERCEPTOR_ENTER(ctx, setitimer, which, new_value, old_value);
- if (new_value)
- COMMON_INTERCEPTOR_READ_RANGE(ctx, new_value, struct_itimerval_sz);
+ if (new_value) {
+ // itimerval can contain padding that may be legitimately uninitialized
+ const struct __sanitizer_itimerval *nv =
+ (const struct __sanitizer_itimerval *)new_value;
+ COMMON_INTERCEPTOR_READ_RANGE(ctx, &nv->it_interval.tv_sec,
+ sizeof(__sanitizer_time_t));
+ COMMON_INTERCEPTOR_READ_RANGE(ctx, &nv->it_interval.tv_usec,
+ sizeof(__sanitizer_suseconds_t));
+ COMMON_INTERCEPTOR_READ_RANGE(ctx, &nv->it_value.tv_sec,
+ sizeof(__sanitizer_time_t));
+ COMMON_INTERCEPTOR_READ_RANGE(ctx, &nv->it_value.tv_usec,
+ sizeof(__sanitizer_suseconds_t));
+ }
+ // FIXME: under ASan the call below may write to freed memory and corrupt
+ // its metadata. See
+ // https://github.com/google/sanitizers/issues/321.
int res = REAL(setitimer)(which, new_value, old_value);
if (!res && old_value) {
COMMON_INTERCEPTOR_WRITE_RANGE(ctx, old_value, struct_itimerval_sz);
}
}
+#if SANITIZER_SOLARIS
+INTERCEPTOR(int, glob, const char *pattern, int flags,
+ int (*errfunc)(const char *epath, int eerrno),
+ __sanitizer_glob_t *pglob) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, glob, pattern, flags, errfunc, pglob);
+ COMMON_INTERCEPTOR_READ_STRING(ctx, pattern, 0);
+ int res = REAL(glob)(pattern, flags, errfunc, pglob);
+ if ((!res || res == glob_nomatch) && pglob) unpoison_glob_t(ctx, pglob);
+ return res;
+}
+#else
static THREADLOCAL __sanitizer_glob_t *pglob_copy;
-static THREADLOCAL void *glob_ctx;
static void wrapped_gl_closedir(void *dir) {
- COMMON_INTERCEPTOR_UNPOISON_PARAM(glob_ctx, 1);
+ COMMON_INTERCEPTOR_UNPOISON_PARAM(1);
pglob_copy->gl_closedir(dir);
}
static void *wrapped_gl_readdir(void *dir) {
- COMMON_INTERCEPTOR_UNPOISON_PARAM(glob_ctx, 1);
+ COMMON_INTERCEPTOR_UNPOISON_PARAM(1);
return pglob_copy->gl_readdir(dir);
}
static void *wrapped_gl_opendir(const char *s) {
- COMMON_INTERCEPTOR_UNPOISON_PARAM(glob_ctx, 1);
- COMMON_INTERCEPTOR_WRITE_RANGE(glob_ctx, s, REAL(strlen)(s) + 1);
+ COMMON_INTERCEPTOR_UNPOISON_PARAM(1);
+ COMMON_INTERCEPTOR_INITIALIZE_RANGE(s, REAL(strlen)(s) + 1);
return pglob_copy->gl_opendir(s);
}
static int wrapped_gl_lstat(const char *s, void *st) {
- COMMON_INTERCEPTOR_UNPOISON_PARAM(glob_ctx, 2);
- COMMON_INTERCEPTOR_WRITE_RANGE(glob_ctx, s, REAL(strlen)(s) + 1);
+ COMMON_INTERCEPTOR_UNPOISON_PARAM(2);
+ COMMON_INTERCEPTOR_INITIALIZE_RANGE(s, REAL(strlen)(s) + 1);
return pglob_copy->gl_lstat(s, st);
}
static int wrapped_gl_stat(const char *s, void *st) {
- COMMON_INTERCEPTOR_UNPOISON_PARAM(glob_ctx, 2);
- COMMON_INTERCEPTOR_WRITE_RANGE(glob_ctx, s, REAL(strlen)(s) + 1);
+ COMMON_INTERCEPTOR_UNPOISON_PARAM(2);
+ COMMON_INTERCEPTOR_INITIALIZE_RANGE(s, REAL(strlen)(s) + 1);
return pglob_copy->gl_stat(s, st);
}
+static const __sanitizer_glob_t kGlobCopy = {
+ 0, 0, 0,
+ 0, wrapped_gl_closedir, wrapped_gl_readdir,
+ wrapped_gl_opendir, wrapped_gl_lstat, wrapped_gl_stat};
+
INTERCEPTOR(int, glob, const char *pattern, int flags,
int (*errfunc)(const char *epath, int eerrno),
__sanitizer_glob_t *pglob) {
void *ctx;
COMMON_INTERCEPTOR_ENTER(ctx, glob, pattern, flags, errfunc, pglob);
- __sanitizer_glob_t glob_copy = {
- 0, 0, 0,
- 0, wrapped_gl_closedir, wrapped_gl_readdir,
- wrapped_gl_opendir, wrapped_gl_lstat, wrapped_gl_stat};
+ COMMON_INTERCEPTOR_READ_STRING(ctx, pattern, 0);
+ __sanitizer_glob_t glob_copy;
+ internal_memcpy(&glob_copy, &kGlobCopy, sizeof(glob_copy));
if (flags & glob_altdirfunc) {
Swap(pglob->gl_closedir, glob_copy.gl_closedir);
Swap(pglob->gl_readdir, glob_copy.gl_readdir);
Swap(pglob->gl_lstat, glob_copy.gl_lstat);
Swap(pglob->gl_stat, glob_copy.gl_stat);
pglob_copy = &glob_copy;
- glob_ctx = ctx;
}
int res = REAL(glob)(pattern, flags, errfunc, pglob);
if (flags & glob_altdirfunc) {
Swap(pglob->gl_stat, glob_copy.gl_stat);
}
pglob_copy = 0;
- glob_ctx = 0;
if ((!res || res == glob_nomatch) && pglob) unpoison_glob_t(ctx, pglob);
return res;
}
+#endif // SANITIZER_SOLARIS
+#define INIT_GLOB \
+ COMMON_INTERCEPT_FUNCTION(glob);
+#else // SANITIZER_INTERCEPT_GLOB
+#define INIT_GLOB
+#endif // SANITIZER_INTERCEPT_GLOB
+#if SANITIZER_INTERCEPT_GLOB64
INTERCEPTOR(int, glob64, const char *pattern, int flags,
int (*errfunc)(const char *epath, int eerrno),
__sanitizer_glob_t *pglob) {
void *ctx;
COMMON_INTERCEPTOR_ENTER(ctx, glob64, pattern, flags, errfunc, pglob);
- __sanitizer_glob_t glob_copy = {
- 0, 0, 0,
- 0, wrapped_gl_closedir, wrapped_gl_readdir,
- wrapped_gl_opendir, wrapped_gl_lstat, wrapped_gl_stat};
+ COMMON_INTERCEPTOR_READ_STRING(ctx, pattern, 0);
+ __sanitizer_glob_t glob_copy;
+ internal_memcpy(&glob_copy, &kGlobCopy, sizeof(glob_copy));
if (flags & glob_altdirfunc) {
Swap(pglob->gl_closedir, glob_copy.gl_closedir);
Swap(pglob->gl_readdir, glob_copy.gl_readdir);
Swap(pglob->gl_lstat, glob_copy.gl_lstat);
Swap(pglob->gl_stat, glob_copy.gl_stat);
pglob_copy = &glob_copy;
- glob_ctx = ctx;
}
int res = REAL(glob64)(pattern, flags, errfunc, pglob);
if (flags & glob_altdirfunc) {
Swap(pglob->gl_stat, glob_copy.gl_stat);
}
pglob_copy = 0;
- glob_ctx = 0;
if ((!res || res == glob_nomatch) && pglob) unpoison_glob_t(ctx, pglob);
return res;
}
-#define INIT_GLOB \
- COMMON_INTERCEPT_FUNCTION(glob); \
+#define INIT_GLOB64 \
COMMON_INTERCEPT_FUNCTION(glob64);
-#else // SANITIZER_INTERCEPT_GLOB
-#define INIT_GLOB
-#endif // SANITIZER_INTERCEPT_GLOB
+#else // SANITIZER_INTERCEPT_GLOB64
+#define INIT_GLOB64
+#endif // SANITIZER_INTERCEPT_GLOB64
#if SANITIZER_INTERCEPT_WAIT
// According to sys/wait.h, wait(), waitid(), waitpid() may have symbol version
INTERCEPTOR_WITH_SUFFIX(int, wait, int *status) {
void *ctx;
COMMON_INTERCEPTOR_ENTER(ctx, wait, status);
+ // FIXME: under ASan the call below may write to freed memory and corrupt
+ // its metadata. See
+ // https://github.com/google/sanitizers/issues/321.
int res = REAL(wait)(status);
if (res != -1 && status)
COMMON_INTERCEPTOR_WRITE_RANGE(ctx, status, sizeof(*status));
return res;
}
+// On FreeBSD id_t is always 64-bit wide.
+#if SANITIZER_FREEBSD && (SANITIZER_WORDSIZE == 32)
+INTERCEPTOR_WITH_SUFFIX(int, waitid, int idtype, long long id, void *infop,
+ int options) {
+#else
INTERCEPTOR_WITH_SUFFIX(int, waitid, int idtype, int id, void *infop,
int options) {
+#endif
void *ctx;
COMMON_INTERCEPTOR_ENTER(ctx, waitid, idtype, id, infop, options);
+ // FIXME: under ASan the call below may write to freed memory and corrupt
+ // its metadata. See
+ // https://github.com/google/sanitizers/issues/321.
int res = REAL(waitid)(idtype, id, infop, options);
if (res != -1 && infop)
COMMON_INTERCEPTOR_WRITE_RANGE(ctx, infop, siginfo_t_sz);
INTERCEPTOR_WITH_SUFFIX(int, waitpid, int pid, int *status, int options) {
void *ctx;
COMMON_INTERCEPTOR_ENTER(ctx, waitpid, pid, status, options);
+ // FIXME: under ASan the call below may write to freed memory and corrupt
+ // its metadata. See
+ // https://github.com/google/sanitizers/issues/321.
int res = REAL(waitpid)(pid, status, options);
if (res != -1 && status)
COMMON_INTERCEPTOR_WRITE_RANGE(ctx, status, sizeof(*status));
INTERCEPTOR(int, wait3, int *status, int options, void *rusage) {
void *ctx;
COMMON_INTERCEPTOR_ENTER(ctx, wait3, status, options, rusage);
+ // FIXME: under ASan the call below may write to freed memory and corrupt
+ // its metadata. See
+ // https://github.com/google/sanitizers/issues/321.
int res = REAL(wait3)(status, options, rusage);
if (res != -1) {
if (status) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, status, sizeof(*status));
}
return res;
}
+#if SANITIZER_ANDROID
+INTERCEPTOR(int, __wait4, int pid, int *status, int options, void *rusage) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, __wait4, pid, status, options, rusage);
+ // FIXME: under ASan the call below may write to freed memory and corrupt
+ // its metadata. See
+ // https://github.com/google/sanitizers/issues/321.
+ int res = REAL(__wait4)(pid, status, options, rusage);
+ if (res != -1) {
+ if (status) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, status, sizeof(*status));
+ if (rusage) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, rusage, struct_rusage_sz);
+ }
+ return res;
+}
+#define INIT_WAIT4 COMMON_INTERCEPT_FUNCTION(__wait4);
+#else
INTERCEPTOR(int, wait4, int pid, int *status, int options, void *rusage) {
void *ctx;
COMMON_INTERCEPTOR_ENTER(ctx, wait4, pid, status, options, rusage);
+ // FIXME: under ASan the call below may write to freed memory and corrupt
+ // its metadata. See
+ // https://github.com/google/sanitizers/issues/321.
int res = REAL(wait4)(pid, status, options, rusage);
if (res != -1) {
if (status) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, status, sizeof(*status));
}
return res;
}
+#define INIT_WAIT4 COMMON_INTERCEPT_FUNCTION(wait4);
+#endif // SANITIZER_ANDROID
#define INIT_WAIT \
COMMON_INTERCEPT_FUNCTION(wait); \
COMMON_INTERCEPT_FUNCTION(waitid); \
COMMON_INTERCEPT_FUNCTION(waitpid); \
- COMMON_INTERCEPT_FUNCTION(wait3); \
- COMMON_INTERCEPT_FUNCTION(wait4);
+ COMMON_INTERCEPT_FUNCTION(wait3);
#else
#define INIT_WAIT
+#define INIT_WAIT4
#endif
#if SANITIZER_INTERCEPT_INET
uptr sz = __sanitizer_in_addr_sz(af);
if (sz) COMMON_INTERCEPTOR_READ_RANGE(ctx, src, sz);
// FIXME: figure out read size based on the address family.
+ // FIXME: under ASan the call below may write to freed memory and corrupt
+ // its metadata. See
+ // https://github.com/google/sanitizers/issues/321.
char *res = REAL(inet_ntop)(af, src, dst, size);
if (res) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, res, REAL(strlen)(res) + 1);
return res;
INTERCEPTOR(int, inet_pton, int af, const char *src, void *dst) {
void *ctx;
COMMON_INTERCEPTOR_ENTER(ctx, inet_pton, af, src, dst);
+ COMMON_INTERCEPTOR_READ_STRING(ctx, src, 0);
// FIXME: figure out read size based on the address family.
+ // FIXME: under ASan the call below may write to freed memory and corrupt
+ // its metadata. See
+ // https://github.com/google/sanitizers/issues/321.
int res = REAL(inet_pton)(af, src, dst);
if (res == 1) {
uptr sz = __sanitizer_in_addr_sz(af);
void *ctx;
COMMON_INTERCEPTOR_ENTER(ctx, inet_aton, cp, dst);
if (cp) COMMON_INTERCEPTOR_READ_RANGE(ctx, cp, REAL(strlen)(cp) + 1);
+ // FIXME: under ASan the call below may write to freed memory and corrupt
+ // its metadata. See
+ // https://github.com/google/sanitizers/issues/321.
int res = REAL(inet_aton)(cp, dst);
if (res != 0) {
uptr sz = __sanitizer_in_addr_sz(af_inet);
INTERCEPTOR(int, pthread_getschedparam, uptr thread, int *policy, int *param) {
void *ctx;
COMMON_INTERCEPTOR_ENTER(ctx, pthread_getschedparam, thread, policy, param);
+ // FIXME: under ASan the call below may write to freed memory and corrupt
+ // its metadata. See
+ // https://github.com/google/sanitizers/issues/321.
int res = REAL(pthread_getschedparam)(thread, policy, param);
if (res == 0) {
if (policy) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, policy, sizeof(*policy));
COMMON_INTERCEPTOR_READ_RANGE(ctx, service, REAL(strlen)(service) + 1);
if (hints)
COMMON_INTERCEPTOR_READ_RANGE(ctx, hints, sizeof(__sanitizer_addrinfo));
+ // FIXME: under ASan the call below may write to freed memory and corrupt
+ // its metadata. See
+ // https://github.com/google/sanitizers/issues/321.
int res = REAL(getaddrinfo)(node, service, hints, out);
if (res == 0 && out) {
COMMON_INTERCEPTOR_WRITE_RANGE(ctx, out, sizeof(*out));
serv, servlen, flags);
// FIXME: consider adding READ_RANGE(sockaddr, salen)
// There is padding in in_addr that may make this too noisy
+ // FIXME: under ASan the call below may write to freed memory and corrupt
+ // its metadata. See
+ // https://github.com/google/sanitizers/issues/321.
int res =
REAL(getnameinfo)(sockaddr, salen, host, hostlen, serv, servlen, flags);
if (res == 0) {
COMMON_INTERCEPTOR_ENTER(ctx, getsockname, sock_fd, addr, addrlen);
COMMON_INTERCEPTOR_READ_RANGE(ctx, addrlen, sizeof(*addrlen));
int addrlen_in = *addrlen;
+ // FIXME: under ASan the call below may write to freed memory and corrupt
+ // its metadata. See
+ // https://github.com/google/sanitizers/issues/321.
int res = REAL(getsockname)(sock_fd, addr, addrlen);
if (res == 0) {
COMMON_INTERCEPTOR_WRITE_RANGE(ctx, addr, Min(addrlen_in, *addrlen));
if (res) write_hostent(ctx, res);
return res;
}
+#define INIT_GETHOSTBYNAME \
+ COMMON_INTERCEPT_FUNCTION(gethostent); \
+ COMMON_INTERCEPT_FUNCTION(gethostbyaddr); \
+ COMMON_INTERCEPT_FUNCTION(gethostbyname);
+#else
+#define INIT_GETHOSTBYNAME
+#endif // SANITIZER_INTERCEPT_GETHOSTBYNAME
+#if SANITIZER_INTERCEPT_GETHOSTBYNAME2
INTERCEPTOR(struct __sanitizer_hostent *, gethostbyname2, char *name, int af) {
void *ctx;
COMMON_INTERCEPTOR_ENTER(ctx, gethostbyname2, name, af);
if (res) write_hostent(ctx, res);
return res;
}
-#define INIT_GETHOSTBYNAME \
- COMMON_INTERCEPT_FUNCTION(gethostent); \
- COMMON_INTERCEPT_FUNCTION(gethostbyaddr); \
- COMMON_INTERCEPT_FUNCTION(gethostbyname); \
- COMMON_INTERCEPT_FUNCTION(gethostbyname2);
+#define INIT_GETHOSTBYNAME2 COMMON_INTERCEPT_FUNCTION(gethostbyname2);
#else
-#define INIT_GETHOSTBYNAME
-#endif
+#define INIT_GETHOSTBYNAME2
+#endif // SANITIZER_INTERCEPT_GETHOSTBYNAME2
#if SANITIZER_INTERCEPT_GETHOSTBYNAME_R
+INTERCEPTOR(int, gethostbyname_r, char *name, struct __sanitizer_hostent *ret,
+ char *buf, SIZE_T buflen, __sanitizer_hostent **result,
+ int *h_errnop) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, gethostbyname_r, name, ret, buf, buflen, result,
+ h_errnop);
+ // FIXME: under ASan the call below may write to freed memory and corrupt
+ // its metadata. See
+ // https://github.com/google/sanitizers/issues/321.
+ int res = REAL(gethostbyname_r)(name, ret, buf, buflen, result, h_errnop);
+ if (result) {
+ COMMON_INTERCEPTOR_WRITE_RANGE(ctx, result, sizeof(*result));
+ if (res == 0 && *result) write_hostent(ctx, *result);
+ }
+ if (h_errnop)
+ COMMON_INTERCEPTOR_WRITE_RANGE(ctx, h_errnop, sizeof(*h_errnop));
+ return res;
+}
+#define INIT_GETHOSTBYNAME_R COMMON_INTERCEPT_FUNCTION(gethostbyname_r);
+#else
+#define INIT_GETHOSTBYNAME_R
+#endif
+
+#if SANITIZER_INTERCEPT_GETHOSTENT_R
INTERCEPTOR(int, gethostent_r, struct __sanitizer_hostent *ret, char *buf,
SIZE_T buflen, __sanitizer_hostent **result, int *h_errnop) {
void *ctx;
COMMON_INTERCEPTOR_ENTER(ctx, gethostent_r, ret, buf, buflen, result,
h_errnop);
+ // FIXME: under ASan the call below may write to freed memory and corrupt
+ // its metadata. See
+ // https://github.com/google/sanitizers/issues/321.
int res = REAL(gethostent_r)(ret, buf, buflen, result, h_errnop);
- if (res == 0) {
- if (result) {
- COMMON_INTERCEPTOR_WRITE_RANGE(ctx, result, sizeof(*result));
- if (*result) write_hostent(ctx, *result);
- }
- if (h_errnop)
- COMMON_INTERCEPTOR_WRITE_RANGE(ctx, h_errnop, sizeof(*h_errnop));
+ if (result) {
+ COMMON_INTERCEPTOR_WRITE_RANGE(ctx, result, sizeof(*result));
+ if (res == 0 && *result) write_hostent(ctx, *result);
}
+ if (h_errnop)
+ COMMON_INTERCEPTOR_WRITE_RANGE(ctx, h_errnop, sizeof(*h_errnop));
return res;
}
+#define INIT_GETHOSTENT_R \
+ COMMON_INTERCEPT_FUNCTION(gethostent_r);
+#else
+#define INIT_GETHOSTENT_R
+#endif
+#if SANITIZER_INTERCEPT_GETHOSTBYADDR_R
INTERCEPTOR(int, gethostbyaddr_r, void *addr, int len, int type,
struct __sanitizer_hostent *ret, char *buf, SIZE_T buflen,
__sanitizer_hostent **result, int *h_errnop) {
COMMON_INTERCEPTOR_ENTER(ctx, gethostbyaddr_r, addr, len, type, ret, buf,
buflen, result, h_errnop);
COMMON_INTERCEPTOR_READ_RANGE(ctx, addr, len);
+ // FIXME: under ASan the call below may write to freed memory and corrupt
+ // its metadata. See
+ // https://github.com/google/sanitizers/issues/321.
int res = REAL(gethostbyaddr_r)(addr, len, type, ret, buf, buflen, result,
h_errnop);
- if (res == 0) {
- if (result) {
- COMMON_INTERCEPTOR_WRITE_RANGE(ctx, result, sizeof(*result));
- if (*result) write_hostent(ctx, *result);
- }
- if (h_errnop)
- COMMON_INTERCEPTOR_WRITE_RANGE(ctx, h_errnop, sizeof(*h_errnop));
- }
- return res;
-}
-
-INTERCEPTOR(int, gethostbyname_r, char *name, struct __sanitizer_hostent *ret,
- char *buf, SIZE_T buflen, __sanitizer_hostent **result,
- int *h_errnop) {
- void *ctx;
- COMMON_INTERCEPTOR_ENTER(ctx, gethostbyname_r, name, ret, buf, buflen, result,
- h_errnop);
- int res = REAL(gethostbyname_r)(name, ret, buf, buflen, result, h_errnop);
- if (res == 0) {
- if (result) {
- COMMON_INTERCEPTOR_WRITE_RANGE(ctx, result, sizeof(*result));
- if (*result) write_hostent(ctx, *result);
- }
- if (h_errnop)
- COMMON_INTERCEPTOR_WRITE_RANGE(ctx, h_errnop, sizeof(*h_errnop));
+ if (result) {
+ COMMON_INTERCEPTOR_WRITE_RANGE(ctx, result, sizeof(*result));
+ if (res == 0 && *result) write_hostent(ctx, *result);
}
+ if (h_errnop)
+ COMMON_INTERCEPTOR_WRITE_RANGE(ctx, h_errnop, sizeof(*h_errnop));
return res;
}
+#define INIT_GETHOSTBYADDR_R \
+ COMMON_INTERCEPT_FUNCTION(gethostbyaddr_r);
+#else
+#define INIT_GETHOSTBYADDR_R
+#endif
+#if SANITIZER_INTERCEPT_GETHOSTBYNAME2_R
INTERCEPTOR(int, gethostbyname2_r, char *name, int af,
struct __sanitizer_hostent *ret, char *buf, SIZE_T buflen,
__sanitizer_hostent **result, int *h_errnop) {
void *ctx;
COMMON_INTERCEPTOR_ENTER(ctx, gethostbyname2_r, name, af, ret, buf, buflen,
result, h_errnop);
+ // FIXME: under ASan the call below may write to freed memory and corrupt
+ // its metadata. See
+ // https://github.com/google/sanitizers/issues/321.
int res =
REAL(gethostbyname2_r)(name, af, ret, buf, buflen, result, h_errnop);
- if (res == 0) {
- if (result) {
- COMMON_INTERCEPTOR_WRITE_RANGE(ctx, result, sizeof(*result));
- if (*result) write_hostent(ctx, *result);
- }
- if (h_errnop)
- COMMON_INTERCEPTOR_WRITE_RANGE(ctx, h_errnop, sizeof(*h_errnop));
+ if (result) {
+ COMMON_INTERCEPTOR_WRITE_RANGE(ctx, result, sizeof(*result));
+ if (res == 0 && *result) write_hostent(ctx, *result);
}
+ if (h_errnop)
+ COMMON_INTERCEPTOR_WRITE_RANGE(ctx, h_errnop, sizeof(*h_errnop));
return res;
}
-#define INIT_GETHOSTBYNAME_R \
- COMMON_INTERCEPT_FUNCTION(gethostent_r); \
- COMMON_INTERCEPT_FUNCTION(gethostbyaddr_r); \
- COMMON_INTERCEPT_FUNCTION(gethostbyname_r); \
+#define INIT_GETHOSTBYNAME2_R \
COMMON_INTERCEPT_FUNCTION(gethostbyname2_r);
#else
-#define INIT_GETHOSTBYNAME_R
+#define INIT_GETHOSTBYNAME2_R
#endif
#if SANITIZER_INTERCEPT_GETSOCKOPT
COMMON_INTERCEPTOR_ENTER(ctx, getsockopt, sockfd, level, optname, optval,
optlen);
if (optlen) COMMON_INTERCEPTOR_READ_RANGE(ctx, optlen, sizeof(*optlen));
+ // FIXME: under ASan the call below may write to freed memory and corrupt
+ // its metadata. See
+ // https://github.com/google/sanitizers/issues/321.
int res = REAL(getsockopt)(sockfd, level, optname, optval, optlen);
if (res == 0)
if (optval && optlen) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, optval, *optlen);
INTERCEPTOR(int, accept, int fd, void *addr, unsigned *addrlen) {
void *ctx;
COMMON_INTERCEPTOR_ENTER(ctx, accept, fd, addr, addrlen);
- unsigned addrlen0;
+ unsigned addrlen0 = 0;
if (addrlen) {
COMMON_INTERCEPTOR_READ_RANGE(ctx, addrlen, sizeof(*addrlen));
addrlen0 = *addrlen;
INTERCEPTOR(int, accept4, int fd, void *addr, unsigned *addrlen, int f) {
void *ctx;
COMMON_INTERCEPTOR_ENTER(ctx, accept4, fd, addr, addrlen, f);
- unsigned addrlen0;
+ unsigned addrlen0 = 0;
if (addrlen) {
COMMON_INTERCEPTOR_READ_RANGE(ctx, addrlen, sizeof(*addrlen));
addrlen0 = *addrlen;
}
+ // FIXME: under ASan the call below may write to freed memory and corrupt
+ // its metadata. See
+ // https://github.com/google/sanitizers/issues/321.
int fd2 = REAL(accept4)(fd, addr, addrlen, f);
if (fd2 >= 0) {
if (fd >= 0) COMMON_INTERCEPTOR_FD_SOCKET_ACCEPT(ctx, fd, fd2);
#define INIT_ACCEPT4
#endif
+#if SANITIZER_INTERCEPT_PACCEPT
+INTERCEPTOR(int, paccept, int fd, void *addr, unsigned *addrlen,
+ __sanitizer_sigset_t *set, int f) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, paccept, fd, addr, addrlen, set, f);
+ unsigned addrlen0 = 0;
+ if (addrlen) {
+ COMMON_INTERCEPTOR_READ_RANGE(ctx, addrlen, sizeof(*addrlen));
+ addrlen0 = *addrlen;
+ }
+ if (set) COMMON_INTERCEPTOR_READ_RANGE(ctx, set, sizeof(*set));
+ int fd2 = REAL(paccept)(fd, addr, addrlen, set, f);
+ if (fd2 >= 0) {
+ if (fd >= 0) COMMON_INTERCEPTOR_FD_SOCKET_ACCEPT(ctx, fd, fd2);
+ if (addr && addrlen)
+ COMMON_INTERCEPTOR_WRITE_RANGE(ctx, addr, Min(*addrlen, addrlen0));
+ }
+ return fd2;
+}
+#define INIT_PACCEPT COMMON_INTERCEPT_FUNCTION(paccept);
+#else
+#define INIT_PACCEPT
+#endif
+
#if SANITIZER_INTERCEPT_MODF
INTERCEPTOR(double, modf, double x, double *iptr) {
void *ctx;
COMMON_INTERCEPTOR_ENTER(ctx, modf, x, iptr);
+ // FIXME: under ASan the call below may write to freed memory and corrupt
+ // its metadata. See
+ // https://github.com/google/sanitizers/issues/321.
double res = REAL(modf)(x, iptr);
if (iptr) {
COMMON_INTERCEPTOR_WRITE_RANGE(ctx, iptr, sizeof(*iptr));
INTERCEPTOR(float, modff, float x, float *iptr) {
void *ctx;
COMMON_INTERCEPTOR_ENTER(ctx, modff, x, iptr);
+ // FIXME: under ASan the call below may write to freed memory and corrupt
+ // its metadata. See
+ // https://github.com/google/sanitizers/issues/321.
float res = REAL(modff)(x, iptr);
if (iptr) {
COMMON_INTERCEPTOR_WRITE_RANGE(ctx, iptr, sizeof(*iptr));
INTERCEPTOR(long double, modfl, long double x, long double *iptr) {
void *ctx;
COMMON_INTERCEPTOR_ENTER(ctx, modfl, x, iptr);
+ // FIXME: under ASan the call below may write to freed memory and corrupt
+ // its metadata. See
+ // https://github.com/google/sanitizers/issues/321.
long double res = REAL(modfl)(x, iptr);
if (iptr) {
COMMON_INTERCEPTOR_WRITE_RANGE(ctx, iptr, sizeof(*iptr));
#define INIT_MODF \
COMMON_INTERCEPT_FUNCTION(modf); \
COMMON_INTERCEPT_FUNCTION(modff); \
- COMMON_INTERCEPT_FUNCTION(modfl);
+ COMMON_INTERCEPT_FUNCTION_LDBL(modfl);
#else
#define INIT_MODF
#endif
-#if SANITIZER_INTERCEPT_RECVMSG
+#if SANITIZER_INTERCEPT_RECVMSG || SANITIZER_INTERCEPT_RECVMMSG
static void write_msghdr(void *ctx, struct __sanitizer_msghdr *msg,
SSIZE_T maxlen) {
COMMON_INTERCEPTOR_WRITE_RANGE(ctx, msg, sizeof(*msg));
if (msg->msg_control && msg->msg_controllen)
COMMON_INTERCEPTOR_WRITE_RANGE(ctx, msg->msg_control, msg->msg_controllen);
}
+#endif
+#if SANITIZER_INTERCEPT_RECVMSG
INTERCEPTOR(SSIZE_T, recvmsg, int fd, struct __sanitizer_msghdr *msg,
int flags) {
void *ctx;
COMMON_INTERCEPTOR_ENTER(ctx, recvmsg, fd, msg, flags);
+ // FIXME: under ASan the call below may write to freed memory and corrupt
+ // its metadata. See
+ // https://github.com/google/sanitizers/issues/321.
SSIZE_T res = REAL(recvmsg)(fd, msg, flags);
if (res >= 0) {
if (fd >= 0) COMMON_INTERCEPTOR_FD_ACQUIRE(ctx, fd);
#define INIT_RECVMSG
#endif
+#if SANITIZER_INTERCEPT_RECVMMSG
+INTERCEPTOR(int, recvmmsg, int fd, struct __sanitizer_mmsghdr *msgvec,
+ unsigned int vlen, int flags, void *timeout) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, recvmmsg, fd, msgvec, vlen, flags, timeout);
+ if (timeout) COMMON_INTERCEPTOR_READ_RANGE(ctx, timeout, struct_timespec_sz);
+ int res = REAL(recvmmsg)(fd, msgvec, vlen, flags, timeout);
+ if (res >= 0) {
+ if (fd >= 0) COMMON_INTERCEPTOR_FD_ACQUIRE(ctx, fd);
+ for (int i = 0; i < res; ++i) {
+ COMMON_INTERCEPTOR_WRITE_RANGE(ctx, &msgvec[i].msg_len,
+ sizeof(msgvec[i].msg_len));
+ write_msghdr(ctx, &msgvec[i].msg_hdr, msgvec[i].msg_len);
+ COMMON_INTERCEPTOR_HANDLE_RECVMSG(ctx, &msgvec[i].msg_hdr);
+ }
+ }
+ return res;
+}
+#define INIT_RECVMMSG COMMON_INTERCEPT_FUNCTION(recvmmsg);
+#else
+#define INIT_RECVMMSG
+#endif
+
+#if SANITIZER_INTERCEPT_SENDMSG || SANITIZER_INTERCEPT_SENDMMSG
+static void read_msghdr_control(void *ctx, void *control, uptr controllen) {
+ const unsigned kCmsgDataOffset =
+ RoundUpTo(sizeof(__sanitizer_cmsghdr), sizeof(uptr));
+
+ char *p = (char *)control;
+ char *const control_end = p + controllen;
+ while (true) {
+ if (p + sizeof(__sanitizer_cmsghdr) > control_end) break;
+ __sanitizer_cmsghdr *cmsg = (__sanitizer_cmsghdr *)p;
+ COMMON_INTERCEPTOR_READ_RANGE(ctx, &cmsg->cmsg_len, sizeof(cmsg->cmsg_len));
+
+ if (p + RoundUpTo(cmsg->cmsg_len, sizeof(uptr)) > control_end) break;
+
+ COMMON_INTERCEPTOR_READ_RANGE(ctx, &cmsg->cmsg_level,
+ sizeof(cmsg->cmsg_level));
+ COMMON_INTERCEPTOR_READ_RANGE(ctx, &cmsg->cmsg_type,
+ sizeof(cmsg->cmsg_type));
+
+ if (cmsg->cmsg_len > kCmsgDataOffset) {
+ char *data = p + kCmsgDataOffset;
+ unsigned data_len = cmsg->cmsg_len - kCmsgDataOffset;
+ if (data_len > 0) COMMON_INTERCEPTOR_READ_RANGE(ctx, data, data_len);
+ }
+
+ p += RoundUpTo(cmsg->cmsg_len, sizeof(uptr));
+ }
+}
+
+static void read_msghdr(void *ctx, struct __sanitizer_msghdr *msg,
+ SSIZE_T maxlen) {
+#define R(f) \
+ COMMON_INTERCEPTOR_READ_RANGE(ctx, &msg->msg_##f, sizeof(msg->msg_##f))
+ R(name);
+ R(namelen);
+ R(iov);
+ R(iovlen);
+ R(control);
+ R(controllen);
+ R(flags);
+#undef R
+ if (msg->msg_name && msg->msg_namelen)
+ COMMON_INTERCEPTOR_READ_RANGE(ctx, msg->msg_name, msg->msg_namelen);
+ if (msg->msg_iov && msg->msg_iovlen)
+ COMMON_INTERCEPTOR_READ_RANGE(ctx, msg->msg_iov,
+ sizeof(*msg->msg_iov) * msg->msg_iovlen);
+ read_iovec(ctx, msg->msg_iov, msg->msg_iovlen, maxlen);
+ if (msg->msg_control && msg->msg_controllen)
+ read_msghdr_control(ctx, msg->msg_control, msg->msg_controllen);
+}
+#endif
+
+#if SANITIZER_INTERCEPT_SENDMSG
+INTERCEPTOR(SSIZE_T, sendmsg, int fd, struct __sanitizer_msghdr *msg,
+ int flags) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, sendmsg, fd, msg, flags);
+ if (fd >= 0) {
+ COMMON_INTERCEPTOR_FD_ACCESS(ctx, fd);
+ COMMON_INTERCEPTOR_FD_RELEASE(ctx, fd);
+ }
+ SSIZE_T res = REAL(sendmsg)(fd, msg, flags);
+ if (common_flags()->intercept_send && res >= 0 && msg)
+ read_msghdr(ctx, msg, res);
+ return res;
+}
+#define INIT_SENDMSG COMMON_INTERCEPT_FUNCTION(sendmsg);
+#else
+#define INIT_SENDMSG
+#endif
+
+#if SANITIZER_INTERCEPT_SENDMMSG
+INTERCEPTOR(int, sendmmsg, int fd, struct __sanitizer_mmsghdr *msgvec,
+ unsigned vlen, int flags) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, sendmmsg, fd, msgvec, vlen, flags);
+ if (fd >= 0) {
+ COMMON_INTERCEPTOR_FD_ACCESS(ctx, fd);
+ COMMON_INTERCEPTOR_FD_RELEASE(ctx, fd);
+ }
+ int res = REAL(sendmmsg)(fd, msgvec, vlen, flags);
+ if (res >= 0 && msgvec)
+ for (int i = 0; i < res; ++i) {
+ COMMON_INTERCEPTOR_WRITE_RANGE(ctx, &msgvec[i].msg_len,
+ sizeof(msgvec[i].msg_len));
+ if (common_flags()->intercept_send)
+ read_msghdr(ctx, &msgvec[i].msg_hdr, msgvec[i].msg_len);
+ }
+ return res;
+}
+#define INIT_SENDMMSG COMMON_INTERCEPT_FUNCTION(sendmmsg);
+#else
+#define INIT_SENDMMSG
+#endif
+
#if SANITIZER_INTERCEPT_GETPEERNAME
INTERCEPTOR(int, getpeername, int sockfd, void *addr, unsigned *addrlen) {
void *ctx;
COMMON_INTERCEPTOR_ENTER(ctx, getpeername, sockfd, addr, addrlen);
unsigned addr_sz;
if (addrlen) addr_sz = *addrlen;
+ // FIXME: under ASan the call below may write to freed memory and corrupt
+ // its metadata. See
+ // https://github.com/google/sanitizers/issues/321.
int res = REAL(getpeername)(sockfd, addr, addrlen);
if (!res && addr && addrlen)
COMMON_INTERCEPTOR_WRITE_RANGE(ctx, addr, Min(addr_sz, *addrlen));
#if SANITIZER_INTERCEPT_SYSINFO
INTERCEPTOR(int, sysinfo, void *info) {
void *ctx;
+ // FIXME: under ASan the call below may write to freed memory and corrupt
+ // its metadata. See
+ // https://github.com/google/sanitizers/issues/321.
COMMON_INTERCEPTOR_ENTER(ctx, sysinfo, info);
int res = REAL(sysinfo)(info);
if (!res && info)
#endif
#if SANITIZER_INTERCEPT_READDIR
+INTERCEPTOR(__sanitizer_dirent *, opendir, const char *path) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, opendir, path);
+ COMMON_INTERCEPTOR_READ_RANGE(ctx, path, REAL(strlen)(path) + 1);
+ __sanitizer_dirent *res = REAL(opendir)(path);
+ if (res)
+ COMMON_INTERCEPTOR_DIR_ACQUIRE(ctx, path);
+ return res;
+}
+
INTERCEPTOR(__sanitizer_dirent *, readdir, void *dirp) {
void *ctx;
COMMON_INTERCEPTOR_ENTER(ctx, readdir, dirp);
+ // FIXME: under ASan the call below may write to freed memory and corrupt
+ // its metadata. See
+ // https://github.com/google/sanitizers/issues/321.
__sanitizer_dirent *res = REAL(readdir)(dirp);
if (res) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, res, res->d_reclen);
return res;
__sanitizer_dirent **result) {
void *ctx;
COMMON_INTERCEPTOR_ENTER(ctx, readdir_r, dirp, entry, result);
+ // FIXME: under ASan the call below may write to freed memory and corrupt
+ // its metadata. See
+ // https://github.com/google/sanitizers/issues/321.
int res = REAL(readdir_r)(dirp, entry, result);
if (!res) {
COMMON_INTERCEPTOR_WRITE_RANGE(ctx, result, sizeof(*result));
}
#define INIT_READDIR \
+ COMMON_INTERCEPT_FUNCTION(opendir); \
COMMON_INTERCEPT_FUNCTION(readdir); \
COMMON_INTERCEPT_FUNCTION(readdir_r);
#else
INTERCEPTOR(__sanitizer_dirent64 *, readdir64, void *dirp) {
void *ctx;
COMMON_INTERCEPTOR_ENTER(ctx, readdir64, dirp);
+ // FIXME: under ASan the call below may write to freed memory and corrupt
+ // its metadata. See
+ // https://github.com/google/sanitizers/issues/321.
__sanitizer_dirent64 *res = REAL(readdir64)(dirp);
if (res) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, res, res->d_reclen);
return res;
__sanitizer_dirent64 **result) {
void *ctx;
COMMON_INTERCEPTOR_ENTER(ctx, readdir64_r, dirp, entry, result);
+ // FIXME: under ASan the call below may write to freed memory and corrupt
+ // its metadata. See
+ // https://github.com/google/sanitizers/issues/321.
int res = REAL(readdir64_r)(dirp, entry, result);
if (!res) {
COMMON_INTERCEPTOR_WRITE_RANGE(ctx, result, sizeof(*result));
INTERCEPTOR(uptr, ptrace, int request, int pid, void *addr, void *data) {
void *ctx;
COMMON_INTERCEPTOR_ENTER(ctx, ptrace, request, pid, addr, data);
+ __sanitizer_iovec local_iovec;
if (data) {
if (request == ptrace_setregs)
COMMON_INTERCEPTOR_READ_RANGE(ctx, data, struct_user_fpregs_struct_sz);
else if (request == ptrace_setfpxregs)
COMMON_INTERCEPTOR_READ_RANGE(ctx, data, struct_user_fpxregs_struct_sz);
+ else if (request == ptrace_setvfpregs)
+ COMMON_INTERCEPTOR_READ_RANGE(ctx, data, struct_user_vfpregs_struct_sz);
else if (request == ptrace_setsiginfo)
COMMON_INTERCEPTOR_READ_RANGE(ctx, data, siginfo_t_sz);
- else if (request == ptrace_setregset) {
- __sanitizer_iovec *iov = (__sanitizer_iovec *)data;
- COMMON_INTERCEPTOR_READ_RANGE(ctx, iov->iov_base, iov->iov_len);
+ // Some kernel might zero the iovec::iov_base in case of invalid
+ // write access. In this case copy the invalid address for further
+ // inspection.
+ else if (request == ptrace_setregset || request == ptrace_getregset) {
+ __sanitizer_iovec *iovec = (__sanitizer_iovec*)data;
+ COMMON_INTERCEPTOR_READ_RANGE(ctx, iovec, sizeof(*iovec));
+ local_iovec = *iovec;
+ if (request == ptrace_setregset)
+ COMMON_INTERCEPTOR_READ_RANGE(ctx, iovec->iov_base, iovec->iov_len);
}
}
+ // FIXME: under ASan the call below may write to freed memory and corrupt
+ // its metadata. See
+ // https://github.com/google/sanitizers/issues/321.
uptr res = REAL(ptrace)(request, pid, addr, data);
if (!res && data) {
- // Note that PEEK* requests assing different meaning to the return value.
+ // Note that PEEK* requests assign different meaning to the return value.
// This function does not handle them (nor does it need to).
if (request == ptrace_getregs)
COMMON_INTERCEPTOR_WRITE_RANGE(ctx, data, struct_user_regs_struct_sz);
COMMON_INTERCEPTOR_WRITE_RANGE(ctx, data, struct_user_fpregs_struct_sz);
else if (request == ptrace_getfpxregs)
COMMON_INTERCEPTOR_WRITE_RANGE(ctx, data, struct_user_fpxregs_struct_sz);
+ else if (request == ptrace_getvfpregs)
+ COMMON_INTERCEPTOR_WRITE_RANGE(ctx, data, struct_user_vfpregs_struct_sz);
else if (request == ptrace_getsiginfo)
COMMON_INTERCEPTOR_WRITE_RANGE(ctx, data, siginfo_t_sz);
+ else if (request == ptrace_geteventmsg)
+ COMMON_INTERCEPTOR_WRITE_RANGE(ctx, data, sizeof(unsigned long));
else if (request == ptrace_getregset) {
- __sanitizer_iovec *iov = (__sanitizer_iovec *)data;
- COMMON_INTERCEPTOR_WRITE_RANGE(ctx, iov->iov_base, iov->iov_len);
+ __sanitizer_iovec *iovec = (__sanitizer_iovec*)data;
+ COMMON_INTERCEPTOR_WRITE_RANGE(ctx, iovec, sizeof(*iovec));
+ COMMON_INTERCEPTOR_WRITE_RANGE(ctx, local_iovec.iov_base,
+ local_iovec.iov_len);
}
}
return res;
#endif
#if SANITIZER_INTERCEPT_SETLOCALE
+static void unpoison_ctype_arrays(void *ctx) {
+#if SANITIZER_NETBSD
+ // These arrays contain 256 regular elements in unsigned char range + 1 EOF
+ COMMON_INTERCEPTOR_WRITE_RANGE(ctx, _ctype_tab_, 257 * sizeof(short));
+ COMMON_INTERCEPTOR_WRITE_RANGE(ctx, _toupper_tab_, 257 * sizeof(short));
+ COMMON_INTERCEPTOR_WRITE_RANGE(ctx, _tolower_tab_, 257 * sizeof(short));
+#endif
+}
+
INTERCEPTOR(char *, setlocale, int category, char *locale) {
void *ctx;
COMMON_INTERCEPTOR_ENTER(ctx, setlocale, category, locale);
if (locale)
COMMON_INTERCEPTOR_READ_RANGE(ctx, locale, REAL(strlen)(locale) + 1);
char *res = REAL(setlocale)(category, locale);
- if (res) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, res, REAL(strlen)(res) + 1);
+ if (res) {
+ COMMON_INTERCEPTOR_WRITE_RANGE(ctx, res, REAL(strlen)(res) + 1);
+ unpoison_ctype_arrays(ctx);
+ }
return res;
}
INTERCEPTOR(char *, getcwd, char *buf, SIZE_T size) {
void *ctx;
COMMON_INTERCEPTOR_ENTER(ctx, getcwd, buf, size);
+ // FIXME: under ASan the call below may write to freed memory and corrupt
+ // its metadata. See
+ // https://github.com/google/sanitizers/issues/321.
char *res = REAL(getcwd)(buf, size);
if (res) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, res, REAL(strlen)(res) + 1);
return res;
INTERCEPTOR(char *, get_current_dir_name, int fake) {
void *ctx;
COMMON_INTERCEPTOR_ENTER(ctx, get_current_dir_name, fake);
+ // FIXME: under ASan the call below may write to freed memory and corrupt
+ // its metadata. See
+ // https://github.com/google/sanitizers/issues/321.
char *res = REAL(get_current_dir_name)(fake);
if (res) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, res, REAL(strlen)(res) + 1);
return res;
#define INIT_GET_CURRENT_DIR_NAME
#endif
+UNUSED static inline void FixRealStrtolEndptr(const char *nptr, char **endptr) {
+ CHECK(endptr);
+ if (nptr == *endptr) {
+ // No digits were found at strtol call, we need to find out the last
+ // symbol accessed by strtoll on our own.
+ // We get this symbol by skipping leading blanks and optional +/- sign.
+ while (IsSpace(*nptr)) nptr++;
+ if (*nptr == '+' || *nptr == '-') nptr++;
+ *endptr = const_cast<char *>(nptr);
+ }
+ CHECK(*endptr >= nptr);
+}
+
+UNUSED static inline void StrtolFixAndCheck(void *ctx, const char *nptr,
+ char **endptr, char *real_endptr, int base) {
+ if (endptr) {
+ *endptr = real_endptr;
+ COMMON_INTERCEPTOR_WRITE_RANGE(ctx, endptr, sizeof(*endptr));
+ }
+ // If base has unsupported value, strtol can exit with EINVAL
+ // without reading any characters. So do additional checks only
+ // if base is valid.
+ bool is_valid_base = (base == 0) || (2 <= base && base <= 36);
+ if (is_valid_base) {
+ FixRealStrtolEndptr(nptr, &real_endptr);
+ }
+ COMMON_INTERCEPTOR_READ_STRING(ctx, nptr, is_valid_base ?
+ (real_endptr - nptr) + 1 : 0);
+}
+
+
#if SANITIZER_INTERCEPT_STRTOIMAX
INTERCEPTOR(INTMAX_T, strtoimax, const char *nptr, char **endptr, int base) {
void *ctx;
COMMON_INTERCEPTOR_ENTER(ctx, strtoimax, nptr, endptr, base);
- INTMAX_T res = REAL(strtoimax)(nptr, endptr, base);
- if (endptr) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, endptr, sizeof(*endptr));
+ // FIXME: under ASan the call below may write to freed memory and corrupt
+ // its metadata. See
+ // https://github.com/google/sanitizers/issues/321.
+ char *real_endptr;
+ INTMAX_T res = REAL(strtoimax)(nptr, &real_endptr, base);
+ StrtolFixAndCheck(ctx, nptr, endptr, real_endptr, base);
return res;
}
-INTERCEPTOR(INTMAX_T, strtoumax, const char *nptr, char **endptr, int base) {
+INTERCEPTOR(UINTMAX_T, strtoumax, const char *nptr, char **endptr, int base) {
void *ctx;
COMMON_INTERCEPTOR_ENTER(ctx, strtoumax, nptr, endptr, base);
- INTMAX_T res = REAL(strtoumax)(nptr, endptr, base);
- if (endptr) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, endptr, sizeof(*endptr));
+ // FIXME: under ASan the call below may write to freed memory and corrupt
+ // its metadata. See
+ // https://github.com/google/sanitizers/issues/321.
+ char *real_endptr;
+ UINTMAX_T res = REAL(strtoumax)(nptr, &real_endptr, base);
+ StrtolFixAndCheck(ctx, nptr, endptr, real_endptr, base);
return res;
}
INTERCEPTOR(SIZE_T, mbstowcs, wchar_t *dest, const char *src, SIZE_T len) {
void *ctx;
COMMON_INTERCEPTOR_ENTER(ctx, mbstowcs, dest, src, len);
+ // FIXME: under ASan the call below may write to freed memory and corrupt
+ // its metadata. See
+ // https://github.com/google/sanitizers/issues/321.
SIZE_T res = REAL(mbstowcs)(dest, src, len);
if (res != (SIZE_T) - 1 && dest) {
SIZE_T write_cnt = res + (res < len);
COMMON_INTERCEPTOR_ENTER(ctx, mbsrtowcs, dest, src, len, ps);
if (src) COMMON_INTERCEPTOR_READ_RANGE(ctx, src, sizeof(*src));
if (ps) COMMON_INTERCEPTOR_READ_RANGE(ctx, ps, mbstate_t_sz);
+ // FIXME: under ASan the call below may write to freed memory and corrupt
+ // its metadata. See
+ // https://github.com/google/sanitizers/issues/321.
SIZE_T res = REAL(mbsrtowcs)(dest, src, len, ps);
if (res != (SIZE_T)(-1) && dest && src) {
// This function, and several others, may or may not write the terminating
if (nms) COMMON_INTERCEPTOR_READ_RANGE(ctx, *src, nms);
}
if (ps) COMMON_INTERCEPTOR_READ_RANGE(ctx, ps, mbstate_t_sz);
+ // FIXME: under ASan the call below may write to freed memory and corrupt
+ // its metadata. See
+ // https://github.com/google/sanitizers/issues/321.
SIZE_T res = REAL(mbsnrtowcs)(dest, src, nms, len, ps);
if (res != (SIZE_T)(-1) && dest && src) {
SIZE_T write_cnt = res + !*src;
INTERCEPTOR(SIZE_T, wcstombs, char *dest, const wchar_t *src, SIZE_T len) {
void *ctx;
COMMON_INTERCEPTOR_ENTER(ctx, wcstombs, dest, src, len);
+ // FIXME: under ASan the call below may write to freed memory and corrupt
+ // its metadata. See
+ // https://github.com/google/sanitizers/issues/321.
SIZE_T res = REAL(wcstombs)(dest, src, len);
if (res != (SIZE_T) - 1 && dest) {
SIZE_T write_cnt = res + (res < len);
COMMON_INTERCEPTOR_ENTER(ctx, wcsrtombs, dest, src, len, ps);
if (src) COMMON_INTERCEPTOR_READ_RANGE(ctx, src, sizeof(*src));
if (ps) COMMON_INTERCEPTOR_READ_RANGE(ctx, ps, mbstate_t_sz);
+ // FIXME: under ASan the call below may write to freed memory and corrupt
+ // its metadata. See
+ // https://github.com/google/sanitizers/issues/321.
SIZE_T res = REAL(wcsrtombs)(dest, src, len, ps);
if (res != (SIZE_T) - 1 && dest && src) {
SIZE_T write_cnt = res + !*src;
if (nms) COMMON_INTERCEPTOR_READ_RANGE(ctx, *src, nms);
}
if (ps) COMMON_INTERCEPTOR_READ_RANGE(ctx, ps, mbstate_t_sz);
+ // FIXME: under ASan the call below may write to freed memory and corrupt
+ // its metadata. See
+ // https://github.com/google/sanitizers/issues/321.
SIZE_T res = REAL(wcsnrtombs)(dest, src, nms, len, ps);
- if (res != (SIZE_T) - 1 && dest && src) {
+ if (res != ((SIZE_T)-1) && dest && src) {
SIZE_T write_cnt = res + !*src;
COMMON_INTERCEPTOR_WRITE_RANGE(ctx, dest, write_cnt);
}
#define INIT_WCSNRTOMBS
#endif
+
+#if SANITIZER_INTERCEPT_WCRTOMB
+INTERCEPTOR(SIZE_T, wcrtomb, char *dest, wchar_t src, void *ps) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, wcrtomb, dest, src, ps);
+ if (ps) COMMON_INTERCEPTOR_READ_RANGE(ctx, ps, mbstate_t_sz);
+
+ if (!dest)
+ return REAL(wcrtomb)(dest, src, ps);
+
+ char local_dest[32];
+ SIZE_T res = REAL(wcrtomb)(local_dest, src, ps);
+ if (res != ((SIZE_T)-1)) {
+ CHECK_LE(res, sizeof(local_dest));
+ COMMON_INTERCEPTOR_WRITE_RANGE(ctx, dest, res);
+ REAL(memcpy)(dest, local_dest, res);
+ }
+ return res;
+}
+
+#define INIT_WCRTOMB COMMON_INTERCEPT_FUNCTION(wcrtomb);
+#else
+#define INIT_WCRTOMB
+#endif
+
+#if SANITIZER_INTERCEPT_WCTOMB
+INTERCEPTOR(int, wctomb, char *dest, wchar_t src) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, wctomb, dest, src);
+ if (!dest)
+ return REAL(wctomb)(dest, src);
+
+ char local_dest[32];
+ int res = REAL(wctomb)(local_dest, src);
+ if (res != -1) {
+ CHECK_LE(res, sizeof(local_dest));
+ COMMON_INTERCEPTOR_WRITE_RANGE(ctx, dest, res);
+ REAL(memcpy)(dest, local_dest, res);
+ }
+ return res;
+}
+
+#define INIT_WCTOMB COMMON_INTERCEPT_FUNCTION(wctomb);
+#else
+#define INIT_WCTOMB
+#endif
+
#if SANITIZER_INTERCEPT_TCGETATTR
INTERCEPTOR(int, tcgetattr, int fd, void *termios_p) {
void *ctx;
COMMON_INTERCEPTOR_ENTER(ctx, tcgetattr, fd, termios_p);
+ // FIXME: under ASan the call below may write to freed memory and corrupt
+ // its metadata. See
+ // https://github.com/google/sanitizers/issues/321.
int res = REAL(tcgetattr)(fd, termios_p);
if (!res && termios_p)
COMMON_INTERCEPTOR_WRITE_RANGE(ctx, termios_p, struct_termios_sz);
// version of a versioned symbol. For realpath(), this gives us something
// (called __old_realpath) that does not handle NULL in the second argument.
// Handle it as part of the interceptor.
- char *allocated_path = 0;
+ char *allocated_path = nullptr;
if (!resolved_path)
allocated_path = resolved_path = (char *)WRAP(malloc)(path_max + 1);
INTERCEPTOR(SIZE_T, confstr, int name, char *buf, SIZE_T len) {
void *ctx;
COMMON_INTERCEPTOR_ENTER(ctx, confstr, name, buf, len);
+ // FIXME: under ASan the call below may write to freed memory and corrupt
+ // its metadata. See
+ // https://github.com/google/sanitizers/issues/321.
SIZE_T res = REAL(confstr)(name, buf, len);
if (buf && res)
COMMON_INTERCEPTOR_WRITE_RANGE(ctx, buf, res < len ? res : len);
INTERCEPTOR(int, sched_getaffinity, int pid, SIZE_T cpusetsize, void *mask) {
void *ctx;
COMMON_INTERCEPTOR_ENTER(ctx, sched_getaffinity, pid, cpusetsize, mask);
+ // FIXME: under ASan the call below may write to freed memory and corrupt
+ // its metadata. See
+ // https://github.com/google/sanitizers/issues/321.
int res = REAL(sched_getaffinity)(pid, cpusetsize, mask);
if (mask && !res) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, mask, cpusetsize);
return res;
#define INIT_SCHED_GETAFFINITY
#endif
+#if SANITIZER_INTERCEPT_SCHED_GETPARAM
+INTERCEPTOR(int, sched_getparam, int pid, void *param) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, sched_getparam, pid, param);
+ int res = REAL(sched_getparam)(pid, param);
+ if (!res) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, param, struct_sched_param_sz);
+ return res;
+}
+#define INIT_SCHED_GETPARAM COMMON_INTERCEPT_FUNCTION(sched_getparam);
+#else
+#define INIT_SCHED_GETPARAM
+#endif
+
#if SANITIZER_INTERCEPT_STRERROR
INTERCEPTOR(char *, strerror, int errnum) {
void *ctx;
COMMON_INTERCEPTOR_ENTER(ctx, strerror, errnum);
char *res = REAL(strerror)(errnum);
- if (res) COMMON_INTERCEPTOR_INITIALIZE_RANGE(ctx, res, REAL(strlen)(res) + 1);
+ if (res) COMMON_INTERCEPTOR_INITIALIZE_RANGE(res, REAL(strlen)(res) + 1);
return res;
}
#define INIT_STRERROR COMMON_INTERCEPT_FUNCTION(strerror);
#endif
#if SANITIZER_INTERCEPT_STRERROR_R
+// There are 2 versions of strerror_r:
+// * POSIX version returns 0 on success, negative error code on failure,
+// writes message to buf.
+// * GNU version returns message pointer, which points to either buf or some
+// static storage.
+#if ((_POSIX_C_SOURCE >= 200112L || _XOPEN_SOURCE >= 600) && !_GNU_SOURCE) || \
+ SANITIZER_MAC || SANITIZER_ANDROID || SANITIZER_NETBSD || \
+ SANITIZER_FREEBSD || SANITIZER_OPENBSD
+// POSIX version. Spec is not clear on whether buf is NULL-terminated.
+// At least on OSX, buf contents are valid even when the call fails.
+INTERCEPTOR(int, strerror_r, int errnum, char *buf, SIZE_T buflen) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, strerror_r, errnum, buf, buflen);
+ // FIXME: under ASan the call below may write to freed memory and corrupt
+ // its metadata. See
+ // https://github.com/google/sanitizers/issues/321.
+ int res = REAL(strerror_r)(errnum, buf, buflen);
+
+ SIZE_T sz = internal_strnlen(buf, buflen);
+ if (sz < buflen) ++sz;
+ COMMON_INTERCEPTOR_WRITE_RANGE(ctx, buf, sz);
+ return res;
+}
+#else
+// GNU version.
INTERCEPTOR(char *, strerror_r, int errnum, char *buf, SIZE_T buflen) {
void *ctx;
COMMON_INTERCEPTOR_ENTER(ctx, strerror_r, errnum, buf, buflen);
+ // FIXME: under ASan the call below may write to freed memory and corrupt
+ // its metadata. See
+ // https://github.com/google/sanitizers/issues/321.
char *res = REAL(strerror_r)(errnum, buf, buflen);
- // There are 2 versions of strerror_r:
- // * POSIX version returns 0 on success, negative error code on failure,
- // writes message to buf.
- // * GNU version returns message pointer, which points to either buf or some
- // static storage.
- SIZE_T posix_res = (SIZE_T)res;
- if (posix_res < 1024 || posix_res > (SIZE_T) - 1024) {
- // POSIX version. Spec is not clear on whether buf is NULL-terminated.
- // At least on OSX, buf contents are valid even when the call fails.
- SIZE_T sz = internal_strnlen(buf, buflen);
- if (sz < buflen) ++sz;
- COMMON_INTERCEPTOR_WRITE_RANGE(ctx, buf, sz);
- } else {
- // GNU version.
+ if (res == buf)
COMMON_INTERCEPTOR_WRITE_RANGE(ctx, res, REAL(strlen)(res) + 1);
- }
+ else
+ COMMON_INTERCEPTOR_INITIALIZE_RANGE(res, REAL(strlen)(res) + 1);
return res;
}
+#endif //(_POSIX_C_SOURCE >= 200112L || _XOPEN_SOURCE >= 600) && !_GNU_SOURCE ||
+ //SANITIZER_MAC
#define INIT_STRERROR_R COMMON_INTERCEPT_FUNCTION(strerror_r);
#else
#define INIT_STRERROR_R
INTERCEPTOR(int, __xpg_strerror_r, int errnum, char *buf, SIZE_T buflen) {
void *ctx;
COMMON_INTERCEPTOR_ENTER(ctx, __xpg_strerror_r, errnum, buf, buflen);
+ // FIXME: under ASan the call below may write to freed memory and corrupt
+ // its metadata. See
+ // https://github.com/google/sanitizers/issues/321.
int res = REAL(__xpg_strerror_r)(errnum, buf, buflen);
// This version always returns a null-terminated string.
if (buf && buflen)
typedef int (*scandir_compar_f)(const struct __sanitizer_dirent **,
const struct __sanitizer_dirent **);
-static THREADLOCAL void *scandir_ctx;
static THREADLOCAL scandir_filter_f scandir_filter;
static THREADLOCAL scandir_compar_f scandir_compar;
static int wrapped_scandir_filter(const struct __sanitizer_dirent *dir) {
- COMMON_INTERCEPTOR_UNPOISON_PARAM(scandir_ctx, 1);
- COMMON_INTERCEPTOR_WRITE_RANGE(scandir_ctx, dir, dir->d_reclen);
+ COMMON_INTERCEPTOR_UNPOISON_PARAM(1);
+ COMMON_INTERCEPTOR_INITIALIZE_RANGE(dir, dir->d_reclen);
return scandir_filter(dir);
}
static int wrapped_scandir_compar(const struct __sanitizer_dirent **a,
const struct __sanitizer_dirent **b) {
- COMMON_INTERCEPTOR_UNPOISON_PARAM(scandir_ctx, 2);
- COMMON_INTERCEPTOR_WRITE_RANGE(scandir_ctx, a, sizeof(*a));
- COMMON_INTERCEPTOR_WRITE_RANGE(scandir_ctx, *a, (*a)->d_reclen);
- COMMON_INTERCEPTOR_WRITE_RANGE(scandir_ctx, b, sizeof(*b));
- COMMON_INTERCEPTOR_WRITE_RANGE(scandir_ctx, *b, (*b)->d_reclen);
+ COMMON_INTERCEPTOR_UNPOISON_PARAM(2);
+ COMMON_INTERCEPTOR_INITIALIZE_RANGE(a, sizeof(*a));
+ COMMON_INTERCEPTOR_INITIALIZE_RANGE(*a, (*a)->d_reclen);
+ COMMON_INTERCEPTOR_INITIALIZE_RANGE(b, sizeof(*b));
+ COMMON_INTERCEPTOR_INITIALIZE_RANGE(*b, (*b)->d_reclen);
return scandir_compar(a, b);
}
void *ctx;
COMMON_INTERCEPTOR_ENTER(ctx, scandir, dirp, namelist, filter, compar);
if (dirp) COMMON_INTERCEPTOR_READ_RANGE(ctx, dirp, REAL(strlen)(dirp) + 1);
- CHECK_EQ(0, scandir_ctx);
- scandir_ctx = ctx;
scandir_filter = filter;
scandir_compar = compar;
- int res = REAL(scandir)(dirp, namelist, filter ? wrapped_scandir_filter : 0,
- compar ? wrapped_scandir_compar : 0);
- scandir_ctx = 0;
- scandir_filter = 0;
- scandir_compar = 0;
+ // FIXME: under ASan the call below may write to freed memory and corrupt
+ // its metadata. See
+ // https://github.com/google/sanitizers/issues/321.
+ int res = REAL(scandir)(dirp, namelist,
+ filter ? wrapped_scandir_filter : nullptr,
+ compar ? wrapped_scandir_compar : nullptr);
+ scandir_filter = nullptr;
+ scandir_compar = nullptr;
if (namelist && res > 0) {
COMMON_INTERCEPTOR_WRITE_RANGE(ctx, namelist, sizeof(*namelist));
COMMON_INTERCEPTOR_WRITE_RANGE(ctx, *namelist, sizeof(**namelist) * res);
typedef int (*scandir64_compar_f)(const struct __sanitizer_dirent64 **,
const struct __sanitizer_dirent64 **);
-static THREADLOCAL void *scandir64_ctx;
static THREADLOCAL scandir64_filter_f scandir64_filter;
static THREADLOCAL scandir64_compar_f scandir64_compar;
static int wrapped_scandir64_filter(const struct __sanitizer_dirent64 *dir) {
- COMMON_INTERCEPTOR_UNPOISON_PARAM(scandir64_ctx, 1);
- COMMON_INTERCEPTOR_WRITE_RANGE(scandir64_ctx, dir, dir->d_reclen);
+ COMMON_INTERCEPTOR_UNPOISON_PARAM(1);
+ COMMON_INTERCEPTOR_INITIALIZE_RANGE(dir, dir->d_reclen);
return scandir64_filter(dir);
}
static int wrapped_scandir64_compar(const struct __sanitizer_dirent64 **a,
const struct __sanitizer_dirent64 **b) {
- COMMON_INTERCEPTOR_UNPOISON_PARAM(scandir64_ctx, 2);
- COMMON_INTERCEPTOR_WRITE_RANGE(scandir64_ctx, a, sizeof(*a));
- COMMON_INTERCEPTOR_WRITE_RANGE(scandir64_ctx, *a, (*a)->d_reclen);
- COMMON_INTERCEPTOR_WRITE_RANGE(scandir64_ctx, b, sizeof(*b));
- COMMON_INTERCEPTOR_WRITE_RANGE(scandir64_ctx, *b, (*b)->d_reclen);
+ COMMON_INTERCEPTOR_UNPOISON_PARAM(2);
+ COMMON_INTERCEPTOR_INITIALIZE_RANGE(a, sizeof(*a));
+ COMMON_INTERCEPTOR_INITIALIZE_RANGE(*a, (*a)->d_reclen);
+ COMMON_INTERCEPTOR_INITIALIZE_RANGE(b, sizeof(*b));
+ COMMON_INTERCEPTOR_INITIALIZE_RANGE(*b, (*b)->d_reclen);
return scandir64_compar(a, b);
}
void *ctx;
COMMON_INTERCEPTOR_ENTER(ctx, scandir64, dirp, namelist, filter, compar);
if (dirp) COMMON_INTERCEPTOR_READ_RANGE(ctx, dirp, REAL(strlen)(dirp) + 1);
- CHECK_EQ(0, scandir64_ctx);
- scandir64_ctx = ctx;
scandir64_filter = filter;
scandir64_compar = compar;
+ // FIXME: under ASan the call below may write to freed memory and corrupt
+ // its metadata. See
+ // https://github.com/google/sanitizers/issues/321.
int res =
- REAL(scandir64)(dirp, namelist, filter ? wrapped_scandir64_filter : 0,
- compar ? wrapped_scandir64_compar : 0);
- scandir64_ctx = 0;
- scandir64_filter = 0;
- scandir64_compar = 0;
+ REAL(scandir64)(dirp, namelist,
+ filter ? wrapped_scandir64_filter : nullptr,
+ compar ? wrapped_scandir64_compar : nullptr);
+ scandir64_filter = nullptr;
+ scandir64_compar = nullptr;
if (namelist && res > 0) {
COMMON_INTERCEPTOR_WRITE_RANGE(ctx, namelist, sizeof(*namelist));
COMMON_INTERCEPTOR_WRITE_RANGE(ctx, *namelist, sizeof(**namelist) * res);
INTERCEPTOR(int, getgroups, int size, u32 *lst) {
void *ctx;
COMMON_INTERCEPTOR_ENTER(ctx, getgroups, size, lst);
+ // FIXME: under ASan the call below may write to freed memory and corrupt
+ // its metadata. See
+ // https://github.com/google/sanitizers/issues/321.
int res = REAL(getgroups)(size, lst);
- if (res && lst) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, lst, res * sizeof(*lst));
+ if (res >= 0 && lst && size > 0)
+ COMMON_INTERCEPTOR_WRITE_RANGE(ctx, lst, res * sizeof(*lst));
return res;
}
#define INIT_GETGROUPS COMMON_INTERCEPT_FUNCTION(getgroups);
if (fds && nfds) read_pollfd(ctx, fds, nfds);
if (timeout_ts)
COMMON_INTERCEPTOR_READ_RANGE(ctx, timeout_ts, struct_timespec_sz);
- // FIXME: read sigmask when all of sigemptyset, etc are intercepted.
+ if (sigmask) COMMON_INTERCEPTOR_READ_RANGE(ctx, sigmask, sizeof(*sigmask));
int res =
COMMON_INTERCEPTOR_BLOCK_REAL(ppoll)(fds, nfds, timeout_ts, sigmask);
if (fds && nfds) write_pollfd(ctx, fds, nfds);
void *ctx;
COMMON_INTERCEPTOR_ENTER(ctx, wordexp, s, p, flags);
if (s) COMMON_INTERCEPTOR_READ_RANGE(ctx, s, REAL(strlen)(s) + 1);
+ // FIXME: under ASan the call below may write to freed memory and corrupt
+ // its metadata. See
+ // https://github.com/google/sanitizers/issues/321.
int res = REAL(wordexp)(s, p, flags);
if (!res && p) {
COMMON_INTERCEPTOR_WRITE_RANGE(ctx, p, sizeof(*p));
INTERCEPTOR(int, sigwait, __sanitizer_sigset_t *set, int *sig) {
void *ctx;
COMMON_INTERCEPTOR_ENTER(ctx, sigwait, set, sig);
- // FIXME: read sigset_t when all of sigemptyset, etc are intercepted
+ if (set) COMMON_INTERCEPTOR_READ_RANGE(ctx, set, sizeof(*set));
+ // FIXME: under ASan the call below may write to freed memory and corrupt
+ // its metadata. See
+ // https://github.com/google/sanitizers/issues/321.
int res = REAL(sigwait)(set, sig);
if (!res && sig) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, sig, sizeof(*sig));
return res;
INTERCEPTOR(int, sigwaitinfo, __sanitizer_sigset_t *set, void *info) {
void *ctx;
COMMON_INTERCEPTOR_ENTER(ctx, sigwaitinfo, set, info);
- // FIXME: read sigset_t when all of sigemptyset, etc are intercepted
+ if (set) COMMON_INTERCEPTOR_READ_RANGE(ctx, set, sizeof(*set));
+ // FIXME: under ASan the call below may write to freed memory and corrupt
+ // its metadata. See
+ // https://github.com/google/sanitizers/issues/321.
int res = REAL(sigwaitinfo)(set, info);
if (res > 0 && info) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, info, siginfo_t_sz);
return res;
void *ctx;
COMMON_INTERCEPTOR_ENTER(ctx, sigtimedwait, set, info, timeout);
if (timeout) COMMON_INTERCEPTOR_READ_RANGE(ctx, timeout, struct_timespec_sz);
- // FIXME: read sigset_t when all of sigemptyset, etc are intercepted
+ if (set) COMMON_INTERCEPTOR_READ_RANGE(ctx, set, sizeof(*set));
+ // FIXME: under ASan the call below may write to freed memory and corrupt
+ // its metadata. See
+ // https://github.com/google/sanitizers/issues/321.
int res = REAL(sigtimedwait)(set, info, timeout);
if (res > 0 && info) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, info, siginfo_t_sz);
return res;
INTERCEPTOR(int, sigemptyset, __sanitizer_sigset_t *set) {
void *ctx;
COMMON_INTERCEPTOR_ENTER(ctx, sigemptyset, set);
+ // FIXME: under ASan the call below may write to freed memory and corrupt
+ // its metadata. See
+ // https://github.com/google/sanitizers/issues/321.
int res = REAL(sigemptyset)(set);
if (!res && set) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, set, sizeof(*set));
return res;
INTERCEPTOR(int, sigfillset, __sanitizer_sigset_t *set) {
void *ctx;
COMMON_INTERCEPTOR_ENTER(ctx, sigfillset, set);
+ // FIXME: under ASan the call below may write to freed memory and corrupt
+ // its metadata. See
+ // https://github.com/google/sanitizers/issues/321.
int res = REAL(sigfillset)(set);
if (!res && set) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, set, sizeof(*set));
return res;
INTERCEPTOR(int, sigpending, __sanitizer_sigset_t *set) {
void *ctx;
COMMON_INTERCEPTOR_ENTER(ctx, sigpending, set);
+ // FIXME: under ASan the call below may write to freed memory and corrupt
+ // its metadata. See
+ // https://github.com/google/sanitizers/issues/321.
int res = REAL(sigpending)(set);
if (!res && set) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, set, sizeof(*set));
return res;
__sanitizer_sigset_t *oldset) {
void *ctx;
COMMON_INTERCEPTOR_ENTER(ctx, sigprocmask, how, set, oldset);
- // FIXME: read sigset_t when all of sigemptyset, etc are intercepted
+ if (set) COMMON_INTERCEPTOR_READ_RANGE(ctx, set, sizeof(*set));
+ // FIXME: under ASan the call below may write to freed memory and corrupt
+ // its metadata. See
+ // https://github.com/google/sanitizers/issues/321.
int res = REAL(sigprocmask)(how, set, oldset);
if (!res && oldset)
COMMON_INTERCEPTOR_WRITE_RANGE(ctx, oldset, sizeof(*oldset));
#define INIT_SIGPROCMASK
#endif
+#if SANITIZER_INTERCEPT_PTHREAD_SIGMASK
+INTERCEPTOR(int, pthread_sigmask, int how, __sanitizer_sigset_t *set,
+ __sanitizer_sigset_t *oldset) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, pthread_sigmask, how, set, oldset);
+ if (set) COMMON_INTERCEPTOR_READ_RANGE(ctx, set, sizeof(*set));
+ // FIXME: under ASan the call below may write to freed memory and corrupt
+ // its metadata. See
+ // https://github.com/google/sanitizers/issues/321.
+ int res = REAL(pthread_sigmask)(how, set, oldset);
+ if (!res && oldset)
+ COMMON_INTERCEPTOR_WRITE_RANGE(ctx, oldset, sizeof(*oldset));
+ return res;
+}
+#define INIT_PTHREAD_SIGMASK COMMON_INTERCEPT_FUNCTION(pthread_sigmask);
+#else
+#define INIT_PTHREAD_SIGMASK
+#endif
+
#if SANITIZER_INTERCEPT_BACKTRACE
INTERCEPTOR(int, backtrace, void **buffer, int size) {
void *ctx;
COMMON_INTERCEPTOR_ENTER(ctx, backtrace, buffer, size);
+ // FIXME: under ASan the call below may write to freed memory and corrupt
+ // its metadata. See
+ // https://github.com/google/sanitizers/issues/321.
int res = REAL(backtrace)(buffer, size);
if (res && buffer)
COMMON_INTERCEPTOR_WRITE_RANGE(ctx, buffer, res * sizeof(*buffer));
COMMON_INTERCEPTOR_ENTER(ctx, backtrace_symbols, buffer, size);
if (buffer && size)
COMMON_INTERCEPTOR_READ_RANGE(ctx, buffer, size * sizeof(*buffer));
+ // FIXME: under ASan the call below may write to freed memory and corrupt
+ // its metadata. See
+ // https://github.com/google/sanitizers/issues/321.
char **res = REAL(backtrace_symbols)(buffer, size);
if (res && size) {
COMMON_INTERCEPTOR_WRITE_RANGE(ctx, res, size * sizeof(*res));
INTERCEPTOR(void, _exit, int status) {
void *ctx;
COMMON_INTERCEPTOR_ENTER(ctx, _exit, status);
+ COMMON_INTERCEPTOR_USER_CALLBACK_START();
int status1 = COMMON_INTERCEPTOR_ON_EXIT(ctx);
+ COMMON_INTERCEPTOR_USER_CALLBACK_END();
if (status == 0) status = status1;
REAL(_exit)(status);
}
#define INIT__EXIT
#endif
-#if SANITIZER_INTERCEPT_PHTREAD_MUTEX
+#if SANITIZER_INTERCEPT_PTHREAD_MUTEX
INTERCEPTOR(int, pthread_mutex_lock, void *m) {
void *ctx;
COMMON_INTERCEPTOR_ENTER(ctx, pthread_mutex_lock, m);
+ COMMON_INTERCEPTOR_MUTEX_PRE_LOCK(ctx, m);
int res = REAL(pthread_mutex_lock)(m);
if (res == errno_EOWNERDEAD)
COMMON_INTERCEPTOR_MUTEX_REPAIR(ctx, m);
if (res == 0 || res == errno_EOWNERDEAD)
- COMMON_INTERCEPTOR_MUTEX_LOCK(ctx, m);
+ COMMON_INTERCEPTOR_MUTEX_POST_LOCK(ctx, m);
+ if (res == errno_EINVAL)
+ COMMON_INTERCEPTOR_MUTEX_INVALID(ctx, m);
return res;
}
void *ctx;
COMMON_INTERCEPTOR_ENTER(ctx, pthread_mutex_unlock, m);
COMMON_INTERCEPTOR_MUTEX_UNLOCK(ctx, m);
- return REAL(pthread_mutex_unlock)(m);
+ int res = REAL(pthread_mutex_unlock)(m);
+ if (res == errno_EINVAL)
+ COMMON_INTERCEPTOR_MUTEX_INVALID(ctx, m);
+ return res;
}
#define INIT_PTHREAD_MUTEX_LOCK COMMON_INTERCEPT_FUNCTION(pthread_mutex_lock)
#define INIT_PTHREAD_MUTEX_UNLOCK
#endif
-#if SANITIZER_INTERCEPT_PTHREAD_COND
-INTERCEPTOR(int, pthread_cond_wait, void *c, void *m) {
- void *ctx;
- COMMON_INTERCEPTOR_ENTER(ctx, pthread_cond_wait, c, m);
- COMMON_INTERCEPTOR_MUTEX_UNLOCK(ctx, m);
- COMMON_INTERCEPTOR_READ_RANGE(ctx, c, pthread_cond_t_sz);
- int res = REAL(pthread_cond_wait)(c, m);
- COMMON_INTERCEPTOR_MUTEX_LOCK(ctx, m);
- return res;
+#if SANITIZER_INTERCEPT___PTHREAD_MUTEX
+INTERCEPTOR(int, __pthread_mutex_lock, void *m) {
+ return WRAP(pthread_mutex_lock)(m);
}
-INTERCEPTOR(int, pthread_cond_init, void *c, void *a) {
- void *ctx;
- COMMON_INTERCEPTOR_ENTER(ctx, pthread_cond_init, c, a);
- COMMON_INTERCEPTOR_WRITE_RANGE(ctx, c, pthread_cond_t_sz);
- return REAL(pthread_cond_init)(c, a);
+INTERCEPTOR(int, __pthread_mutex_unlock, void *m) {
+ return WRAP(pthread_mutex_unlock)(m);
}
-INTERCEPTOR(int, pthread_cond_signal, void *c) {
- void *ctx;
- COMMON_INTERCEPTOR_ENTER(ctx, pthread_cond_signal, c);
- COMMON_INTERCEPTOR_READ_RANGE(ctx, c, pthread_cond_t_sz);
- return REAL(pthread_cond_signal)(c);
-}
+#define INIT___PTHREAD_MUTEX_LOCK \
+ COMMON_INTERCEPT_FUNCTION(__pthread_mutex_lock)
+#define INIT___PTHREAD_MUTEX_UNLOCK \
+ COMMON_INTERCEPT_FUNCTION(__pthread_mutex_unlock)
+#else
+#define INIT___PTHREAD_MUTEX_LOCK
+#define INIT___PTHREAD_MUTEX_UNLOCK
+#endif
-INTERCEPTOR(int, pthread_cond_broadcast, void *c) {
- void *ctx;
- COMMON_INTERCEPTOR_ENTER(ctx, pthread_cond_broadcast, c);
- COMMON_INTERCEPTOR_READ_RANGE(ctx, c, pthread_cond_t_sz);
- return REAL(pthread_cond_broadcast)(c);
-}
+#if SANITIZER_INTERCEPT___LIBC_MUTEX
+INTERCEPTOR(int, __libc_mutex_lock, void *m)
+ALIAS(WRAPPER_NAME(pthread_mutex_lock));
+
+INTERCEPTOR(int, __libc_mutex_unlock, void *m)
+ALIAS(WRAPPER_NAME(pthread_mutex_unlock));
+
+INTERCEPTOR(int, __libc_thr_setcancelstate, int state, int *oldstate)
+ALIAS(WRAPPER_NAME(pthread_setcancelstate));
-#define INIT_PTHREAD_COND_WAIT \
- INTERCEPT_FUNCTION_VER(pthread_cond_wait, "GLIBC_2.3.2")
-#define INIT_PTHREAD_COND_INIT \
- INTERCEPT_FUNCTION_VER(pthread_cond_init, "GLIBC_2.3.2")
-#define INIT_PTHREAD_COND_SIGNAL \
- INTERCEPT_FUNCTION_VER(pthread_cond_signal, "GLIBC_2.3.2")
-#define INIT_PTHREAD_COND_BROADCAST \
- INTERCEPT_FUNCTION_VER(pthread_cond_broadcast, "GLIBC_2.3.2")
+#define INIT___LIBC_MUTEX_LOCK COMMON_INTERCEPT_FUNCTION(__libc_mutex_lock)
+#define INIT___LIBC_MUTEX_UNLOCK COMMON_INTERCEPT_FUNCTION(__libc_mutex_unlock)
+#define INIT___LIBC_THR_SETCANCELSTATE \
+ COMMON_INTERCEPT_FUNCTION(__libc_thr_setcancelstate)
#else
-#define INIT_PTHREAD_COND_WAIT
-#define INIT_PTHREAD_COND_INIT
-#define INIT_PTHREAD_COND_SIGNAL
-#define INIT_PTHREAD_COND_BROADCAST
+#define INIT___LIBC_MUTEX_LOCK
+#define INIT___LIBC_MUTEX_UNLOCK
+#define INIT___LIBC_THR_SETCANCELSTATE
#endif
#if SANITIZER_INTERCEPT_GETMNTENT || SANITIZER_INTERCEPT_GETMNTENT_R
void *ctx;
COMMON_INTERCEPTOR_ENTER(ctx, statfs, path, buf);
if (path) COMMON_INTERCEPTOR_READ_RANGE(ctx, path, REAL(strlen)(path) + 1);
+ // FIXME: under ASan the call below may write to freed memory and corrupt
+ // its metadata. See
+ // https://github.com/google/sanitizers/issues/321.
int res = REAL(statfs)(path, buf);
if (!res) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, buf, struct_statfs_sz);
return res;
INTERCEPTOR(int, fstatfs, int fd, void *buf) {
void *ctx;
COMMON_INTERCEPTOR_ENTER(ctx, fstatfs, fd, buf);
+ // FIXME: under ASan the call below may write to freed memory and corrupt
+ // its metadata. See
+ // https://github.com/google/sanitizers/issues/321.
int res = REAL(fstatfs)(fd, buf);
if (!res) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, buf, struct_statfs_sz);
return res;
void *ctx;
COMMON_INTERCEPTOR_ENTER(ctx, statfs64, path, buf);
if (path) COMMON_INTERCEPTOR_READ_RANGE(ctx, path, REAL(strlen)(path) + 1);
+ // FIXME: under ASan the call below may write to freed memory and corrupt
+ // its metadata. See
+ // https://github.com/google/sanitizers/issues/321.
int res = REAL(statfs64)(path, buf);
if (!res) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, buf, struct_statfs64_sz);
return res;
INTERCEPTOR(int, fstatfs64, int fd, void *buf) {
void *ctx;
COMMON_INTERCEPTOR_ENTER(ctx, fstatfs64, fd, buf);
+ // FIXME: under ASan the call below may write to freed memory and corrupt
+ // its metadata. See
+ // https://github.com/google/sanitizers/issues/321.
int res = REAL(fstatfs64)(fd, buf);
if (!res) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, buf, struct_statfs64_sz);
return res;
void *ctx;
COMMON_INTERCEPTOR_ENTER(ctx, statvfs, path, buf);
if (path) COMMON_INTERCEPTOR_READ_RANGE(ctx, path, REAL(strlen)(path) + 1);
+ // FIXME: under ASan the call below may write to freed memory and corrupt
+ // its metadata. See
+ // https://github.com/google/sanitizers/issues/321.
int res = REAL(statvfs)(path, buf);
if (!res) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, buf, struct_statvfs_sz);
return res;
INTERCEPTOR(int, fstatvfs, int fd, void *buf) {
void *ctx;
COMMON_INTERCEPTOR_ENTER(ctx, fstatvfs, fd, buf);
+ COMMON_INTERCEPTOR_FD_ACCESS(ctx, fd);
+ // FIXME: under ASan the call below may write to freed memory and corrupt
+ // its metadata. See
+ // https://github.com/google/sanitizers/issues/321.
int res = REAL(fstatvfs)(fd, buf);
- if (!res) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, buf, struct_statvfs_sz);
+ if (!res) {
+ COMMON_INTERCEPTOR_WRITE_RANGE(ctx, buf, struct_statvfs_sz);
+ if (fd >= 0)
+ COMMON_INTERCEPTOR_FD_ACQUIRE(ctx, fd);
+ }
return res;
}
#define INIT_STATVFS \
void *ctx;
COMMON_INTERCEPTOR_ENTER(ctx, statvfs64, path, buf);
if (path) COMMON_INTERCEPTOR_READ_RANGE(ctx, path, REAL(strlen)(path) + 1);
+ // FIXME: under ASan the call below may write to freed memory and corrupt
+ // its metadata. See
+ // https://github.com/google/sanitizers/issues/321.
int res = REAL(statvfs64)(path, buf);
if (!res) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, buf, struct_statvfs64_sz);
return res;
INTERCEPTOR(int, fstatvfs64, int fd, void *buf) {
void *ctx;
COMMON_INTERCEPTOR_ENTER(ctx, fstatvfs64, fd, buf);
+ // FIXME: under ASan the call below may write to freed memory and corrupt
+ // its metadata. See
+ // https://github.com/google/sanitizers/issues/321.
int res = REAL(fstatvfs64)(fd, buf);
if (!res) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, buf, struct_statvfs64_sz);
return res;
#define INIT_INITGROUPS
#endif
-#if SANITIZER_INTERCEPT_ETHER
+#if SANITIZER_INTERCEPT_ETHER_NTOA_ATON
INTERCEPTOR(char *, ether_ntoa, __sanitizer_ether_addr *addr) {
void *ctx;
COMMON_INTERCEPTOR_ENTER(ctx, ether_ntoa, addr);
if (addr) COMMON_INTERCEPTOR_READ_RANGE(ctx, addr, sizeof(*addr));
char *res = REAL(ether_ntoa)(addr);
- if (res) COMMON_INTERCEPTOR_INITIALIZE_RANGE(ctx, res, REAL(strlen)(res) + 1);
+ if (res) COMMON_INTERCEPTOR_INITIALIZE_RANGE(res, REAL(strlen)(res) + 1);
return res;
}
INTERCEPTOR(__sanitizer_ether_addr *, ether_aton, char *buf) {
COMMON_INTERCEPTOR_ENTER(ctx, ether_aton, buf);
if (buf) COMMON_INTERCEPTOR_READ_RANGE(ctx, buf, REAL(strlen)(buf) + 1);
__sanitizer_ether_addr *res = REAL(ether_aton)(buf);
- if (res) COMMON_INTERCEPTOR_INITIALIZE_RANGE(ctx, res, sizeof(*res));
+ if (res) COMMON_INTERCEPTOR_INITIALIZE_RANGE(res, sizeof(*res));
return res;
}
+#define INIT_ETHER_NTOA_ATON \
+ COMMON_INTERCEPT_FUNCTION(ether_ntoa); \
+ COMMON_INTERCEPT_FUNCTION(ether_aton);
+#else
+#define INIT_ETHER_NTOA_ATON
+#endif
+
+#if SANITIZER_INTERCEPT_ETHER_HOST
INTERCEPTOR(int, ether_ntohost, char *hostname, __sanitizer_ether_addr *addr) {
void *ctx;
COMMON_INTERCEPTOR_ENTER(ctx, ether_ntohost, hostname, addr);
if (addr) COMMON_INTERCEPTOR_READ_RANGE(ctx, addr, sizeof(*addr));
+ // FIXME: under ASan the call below may write to freed memory and corrupt
+ // its metadata. See
+ // https://github.com/google/sanitizers/issues/321.
int res = REAL(ether_ntohost)(hostname, addr);
if (!res && hostname)
COMMON_INTERCEPTOR_WRITE_RANGE(ctx, hostname, REAL(strlen)(hostname) + 1);
COMMON_INTERCEPTOR_ENTER(ctx, ether_hostton, hostname, addr);
if (hostname)
COMMON_INTERCEPTOR_READ_RANGE(ctx, hostname, REAL(strlen)(hostname) + 1);
+ // FIXME: under ASan the call below may write to freed memory and corrupt
+ // its metadata. See
+ // https://github.com/google/sanitizers/issues/321.
int res = REAL(ether_hostton)(hostname, addr);
if (!res && addr) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, addr, sizeof(*addr));
return res;
void *ctx;
COMMON_INTERCEPTOR_ENTER(ctx, ether_line, line, addr, hostname);
if (line) COMMON_INTERCEPTOR_READ_RANGE(ctx, line, REAL(strlen)(line) + 1);
+ // FIXME: under ASan the call below may write to freed memory and corrupt
+ // its metadata. See
+ // https://github.com/google/sanitizers/issues/321.
int res = REAL(ether_line)(line, addr, hostname);
if (!res) {
if (addr) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, addr, sizeof(*addr));
}
return res;
}
-#define INIT_ETHER \
- COMMON_INTERCEPT_FUNCTION(ether_ntoa); \
- COMMON_INTERCEPT_FUNCTION(ether_aton); \
+#define INIT_ETHER_HOST \
COMMON_INTERCEPT_FUNCTION(ether_ntohost); \
COMMON_INTERCEPT_FUNCTION(ether_hostton); \
COMMON_INTERCEPT_FUNCTION(ether_line);
#else
-#define INIT_ETHER
+#define INIT_ETHER_HOST
#endif
#if SANITIZER_INTERCEPT_ETHER_R
void *ctx;
COMMON_INTERCEPTOR_ENTER(ctx, ether_ntoa_r, addr, buf);
if (addr) COMMON_INTERCEPTOR_READ_RANGE(ctx, addr, sizeof(*addr));
+ // FIXME: under ASan the call below may write to freed memory and corrupt
+ // its metadata. See
+ // https://github.com/google/sanitizers/issues/321.
char *res = REAL(ether_ntoa_r)(addr, buf);
if (res) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, res, REAL(strlen)(res) + 1);
return res;
void *ctx;
COMMON_INTERCEPTOR_ENTER(ctx, ether_aton_r, buf, addr);
if (buf) COMMON_INTERCEPTOR_READ_RANGE(ctx, buf, REAL(strlen)(buf) + 1);
+ // FIXME: under ASan the call below may write to freed memory and corrupt
+ // its metadata. See
+ // https://github.com/google/sanitizers/issues/321.
__sanitizer_ether_addr *res = REAL(ether_aton_r)(buf, addr);
if (res) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, res, sizeof(*res));
return res;
INTERCEPTOR(int, shmctl, int shmid, int cmd, void *buf) {
void *ctx;
COMMON_INTERCEPTOR_ENTER(ctx, shmctl, shmid, cmd, buf);
+ // FIXME: under ASan the call below may write to freed memory and corrupt
+ // its metadata. See
+ // https://github.com/google/sanitizers/issues/321.
int res = REAL(shmctl)(shmid, cmd, buf);
if (res >= 0) {
unsigned sz = 0;
INTERCEPTOR(int, random_r, void *buf, u32 *result) {
void *ctx;
COMMON_INTERCEPTOR_ENTER(ctx, random_r, buf, result);
+ // FIXME: under ASan the call below may write to freed memory and corrupt
+ // its metadata. See
+ // https://github.com/google/sanitizers/issues/321.
int res = REAL(random_r)(buf, result);
if (!res && result)
COMMON_INTERCEPTOR_WRITE_RANGE(ctx, result, sizeof(*result));
#define INIT_RANDOM_R
#endif
-#if SANITIZER_INTERCEPT_PTHREAD_ATTR_GET || \
- SANITIZER_INTERCEPT_PTHREAD_ATTR_GETINHERITSSCHED
-#define INTERCEPTOR_PTHREAD_ATTR_GET(what, sz) \
- INTERCEPTOR(int, pthread_attr_get##what, void *attr, void *r) { \
- void *ctx; \
- COMMON_INTERCEPTOR_ENTER(ctx, pthread_attr_get##what, attr, r); \
- int res = REAL(pthread_attr_get##what)(attr, r); \
- if (!res && r) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, r, sz); \
- return res; \
+// FIXME: under ASan the REAL() call below may write to freed memory and corrupt
+// its metadata. See
+// https://github.com/google/sanitizers/issues/321.
+#if SANITIZER_INTERCEPT_PTHREAD_ATTR_GET || \
+ SANITIZER_INTERCEPT_PTHREAD_ATTR_GET_SCHED || \
+ SANITIZER_INTERCEPT_PTHREAD_ATTR_GETINHERITSSCHED || \
+ SANITIZER_INTERCEPT_PTHREAD_MUTEXATTR_GET || \
+ SANITIZER_INTERCEPT_PTHREAD_RWLOCKATTR_GET || \
+ SANITIZER_INTERCEPT_PTHREAD_CONDATTR_GET || \
+ SANITIZER_INTERCEPT_PTHREAD_BARRIERATTR_GET
+#define INTERCEPTOR_PTHREAD_OBJECT_ATTR_GET(fn, sz) \
+ INTERCEPTOR(int, fn, void *attr, void *r) { \
+ void *ctx; \
+ COMMON_INTERCEPTOR_ENTER(ctx, fn, attr, r); \
+ int res = REAL(fn)(attr, r); \
+ if (!res && r) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, r, sz); \
+ return res; \
}
+#define INTERCEPTOR_PTHREAD_ATTR_GET(what, sz) \
+ INTERCEPTOR_PTHREAD_OBJECT_ATTR_GET(pthread_attr_get##what, sz)
+#define INTERCEPTOR_PTHREAD_MUTEXATTR_GET(what, sz) \
+ INTERCEPTOR_PTHREAD_OBJECT_ATTR_GET(pthread_mutexattr_get##what, sz)
+#define INTERCEPTOR_PTHREAD_RWLOCKATTR_GET(what, sz) \
+ INTERCEPTOR_PTHREAD_OBJECT_ATTR_GET(pthread_rwlockattr_get##what, sz)
+#define INTERCEPTOR_PTHREAD_CONDATTR_GET(what, sz) \
+ INTERCEPTOR_PTHREAD_OBJECT_ATTR_GET(pthread_condattr_get##what, sz)
+#define INTERCEPTOR_PTHREAD_BARRIERATTR_GET(what, sz) \
+ INTERCEPTOR_PTHREAD_OBJECT_ATTR_GET(pthread_barrierattr_get##what, sz)
#endif
#if SANITIZER_INTERCEPT_PTHREAD_ATTR_GET
INTERCEPTOR_PTHREAD_ATTR_GET(detachstate, sizeof(int))
INTERCEPTOR_PTHREAD_ATTR_GET(guardsize, sizeof(SIZE_T))
-INTERCEPTOR_PTHREAD_ATTR_GET(schedparam, struct_sched_param_sz)
-INTERCEPTOR_PTHREAD_ATTR_GET(schedpolicy, sizeof(int))
INTERCEPTOR_PTHREAD_ATTR_GET(scope, sizeof(int))
INTERCEPTOR_PTHREAD_ATTR_GET(stacksize, sizeof(SIZE_T))
INTERCEPTOR(int, pthread_attr_getstack, void *attr, void **addr, SIZE_T *size) {
void *ctx;
COMMON_INTERCEPTOR_ENTER(ctx, pthread_attr_getstack, attr, addr, size);
+ // FIXME: under ASan the call below may write to freed memory and corrupt
+ // its metadata. See
+ // https://github.com/google/sanitizers/issues/321.
int res = REAL(pthread_attr_getstack)(attr, addr, size);
if (!res) {
if (addr) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, addr, sizeof(*addr));
// We may need to call the real pthread_attr_getstack from the run-time
// in sanitizer_common, but we don't want to include the interception headers
// there. So, just define this function here.
-int __sanitizer_pthread_attr_getstack(void *attr, void **addr, SIZE_T *size) {
+namespace __sanitizer {
+extern "C" {
+int real_pthread_attr_getstack(void *attr, void **addr, SIZE_T *size) {
return REAL(pthread_attr_getstack)(attr, addr, size);
}
+} // extern "C"
+} // namespace __sanitizer
#define INIT_PTHREAD_ATTR_GET \
COMMON_INTERCEPT_FUNCTION(pthread_attr_getdetachstate); \
COMMON_INTERCEPT_FUNCTION(pthread_attr_getguardsize); \
- COMMON_INTERCEPT_FUNCTION(pthread_attr_getschedparam); \
- COMMON_INTERCEPT_FUNCTION(pthread_attr_getschedpolicy); \
COMMON_INTERCEPT_FUNCTION(pthread_attr_getscope); \
COMMON_INTERCEPT_FUNCTION(pthread_attr_getstacksize); \
COMMON_INTERCEPT_FUNCTION(pthread_attr_getstack);
#define INIT_PTHREAD_ATTR_GET
#endif
+#if SANITIZER_INTERCEPT_PTHREAD_ATTR_GET_SCHED
+INTERCEPTOR_PTHREAD_ATTR_GET(schedparam, struct_sched_param_sz)
+INTERCEPTOR_PTHREAD_ATTR_GET(schedpolicy, sizeof(int))
+
+#define INIT_PTHREAD_ATTR_GET_SCHED \
+ COMMON_INTERCEPT_FUNCTION(pthread_attr_getschedparam); \
+ COMMON_INTERCEPT_FUNCTION(pthread_attr_getschedpolicy);
+#else
+#define INIT_PTHREAD_ATTR_GET_SCHED
+#endif
+
#if SANITIZER_INTERCEPT_PTHREAD_ATTR_GETINHERITSCHED
INTERCEPTOR_PTHREAD_ATTR_GET(inheritsched, sizeof(int))
void *ctx;
COMMON_INTERCEPTOR_ENTER(ctx, pthread_attr_getaffinity_np, attr, cpusetsize,
cpuset);
+ // FIXME: under ASan the call below may write to freed memory and corrupt
+ // its metadata. See
+ // https://github.com/google/sanitizers/issues/321.
int res = REAL(pthread_attr_getaffinity_np)(attr, cpusetsize, cpuset);
if (!res && cpusetsize && cpuset)
COMMON_INTERCEPTOR_WRITE_RANGE(ctx, cpuset, cpusetsize);
#define INIT_PTHREAD_ATTR_GETAFFINITY_NP
#endif
+#if SANITIZER_INTERCEPT_PTHREAD_MUTEXATTR_GETPSHARED
+INTERCEPTOR_PTHREAD_MUTEXATTR_GET(pshared, sizeof(int))
+#define INIT_PTHREAD_MUTEXATTR_GETPSHARED \
+ COMMON_INTERCEPT_FUNCTION(pthread_mutexattr_getpshared);
+#else
+#define INIT_PTHREAD_MUTEXATTR_GETPSHARED
+#endif
+
+#if SANITIZER_INTERCEPT_PTHREAD_MUTEXATTR_GETTYPE
+INTERCEPTOR_PTHREAD_MUTEXATTR_GET(type, sizeof(int))
+#define INIT_PTHREAD_MUTEXATTR_GETTYPE \
+ COMMON_INTERCEPT_FUNCTION(pthread_mutexattr_gettype);
+#else
+#define INIT_PTHREAD_MUTEXATTR_GETTYPE
+#endif
+
+#if SANITIZER_INTERCEPT_PTHREAD_MUTEXATTR_GETPROTOCOL
+INTERCEPTOR_PTHREAD_MUTEXATTR_GET(protocol, sizeof(int))
+#define INIT_PTHREAD_MUTEXATTR_GETPROTOCOL \
+ COMMON_INTERCEPT_FUNCTION(pthread_mutexattr_getprotocol);
+#else
+#define INIT_PTHREAD_MUTEXATTR_GETPROTOCOL
+#endif
+
+#if SANITIZER_INTERCEPT_PTHREAD_MUTEXATTR_GETPRIOCEILING
+INTERCEPTOR_PTHREAD_MUTEXATTR_GET(prioceiling, sizeof(int))
+#define INIT_PTHREAD_MUTEXATTR_GETPRIOCEILING \
+ COMMON_INTERCEPT_FUNCTION(pthread_mutexattr_getprioceiling);
+#else
+#define INIT_PTHREAD_MUTEXATTR_GETPRIOCEILING
+#endif
+
+#if SANITIZER_INTERCEPT_PTHREAD_MUTEXATTR_GETROBUST
+INTERCEPTOR_PTHREAD_MUTEXATTR_GET(robust, sizeof(int))
+#define INIT_PTHREAD_MUTEXATTR_GETROBUST \
+ COMMON_INTERCEPT_FUNCTION(pthread_mutexattr_getrobust);
+#else
+#define INIT_PTHREAD_MUTEXATTR_GETROBUST
+#endif
+
+#if SANITIZER_INTERCEPT_PTHREAD_MUTEXATTR_GETROBUST_NP
+INTERCEPTOR_PTHREAD_MUTEXATTR_GET(robust_np, sizeof(int))
+#define INIT_PTHREAD_MUTEXATTR_GETROBUST_NP \
+ COMMON_INTERCEPT_FUNCTION(pthread_mutexattr_getrobust_np);
+#else
+#define INIT_PTHREAD_MUTEXATTR_GETROBUST_NP
+#endif
+
+#if SANITIZER_INTERCEPT_PTHREAD_RWLOCKATTR_GETPSHARED
+INTERCEPTOR_PTHREAD_RWLOCKATTR_GET(pshared, sizeof(int))
+#define INIT_PTHREAD_RWLOCKATTR_GETPSHARED \
+ COMMON_INTERCEPT_FUNCTION(pthread_rwlockattr_getpshared);
+#else
+#define INIT_PTHREAD_RWLOCKATTR_GETPSHARED
+#endif
+
+#if SANITIZER_INTERCEPT_PTHREAD_RWLOCKATTR_GETKIND_NP
+INTERCEPTOR_PTHREAD_RWLOCKATTR_GET(kind_np, sizeof(int))
+#define INIT_PTHREAD_RWLOCKATTR_GETKIND_NP \
+ COMMON_INTERCEPT_FUNCTION(pthread_rwlockattr_getkind_np);
+#else
+#define INIT_PTHREAD_RWLOCKATTR_GETKIND_NP
+#endif
+
+#if SANITIZER_INTERCEPT_PTHREAD_CONDATTR_GETPSHARED
+INTERCEPTOR_PTHREAD_CONDATTR_GET(pshared, sizeof(int))
+#define INIT_PTHREAD_CONDATTR_GETPSHARED \
+ COMMON_INTERCEPT_FUNCTION(pthread_condattr_getpshared);
+#else
+#define INIT_PTHREAD_CONDATTR_GETPSHARED
+#endif
+
+#if SANITIZER_INTERCEPT_PTHREAD_CONDATTR_GETCLOCK
+INTERCEPTOR_PTHREAD_CONDATTR_GET(clock, sizeof(int))
+#define INIT_PTHREAD_CONDATTR_GETCLOCK \
+ COMMON_INTERCEPT_FUNCTION(pthread_condattr_getclock);
+#else
+#define INIT_PTHREAD_CONDATTR_GETCLOCK
+#endif
+
+#if SANITIZER_INTERCEPT_PTHREAD_BARRIERATTR_GETPSHARED
+INTERCEPTOR_PTHREAD_BARRIERATTR_GET(pshared, sizeof(int)) // !mac !android
+#define INIT_PTHREAD_BARRIERATTR_GETPSHARED \
+ COMMON_INTERCEPT_FUNCTION(pthread_barrierattr_getpshared);
+#else
+#define INIT_PTHREAD_BARRIERATTR_GETPSHARED
+#endif
+
#if SANITIZER_INTERCEPT_TMPNAM
INTERCEPTOR(char *, tmpnam, char *s) {
void *ctx;
char *res = REAL(tmpnam)(s);
if (res) {
if (s)
+ // FIXME: under ASan the call below may write to freed memory and corrupt
+ // its metadata. See
+ // https://github.com/google/sanitizers/issues/321.
COMMON_INTERCEPTOR_WRITE_RANGE(ctx, s, REAL(strlen)(s) + 1);
else
- COMMON_INTERCEPTOR_INITIALIZE_RANGE(ctx, res, REAL(strlen)(res) + 1);
+ COMMON_INTERCEPTOR_INITIALIZE_RANGE(res, REAL(strlen)(res) + 1);
}
return res;
}
INTERCEPTOR(char *, tmpnam_r, char *s) {
void *ctx;
COMMON_INTERCEPTOR_ENTER(ctx, tmpnam_r, s);
+ // FIXME: under ASan the call below may write to freed memory and corrupt
+ // its metadata. See
+ // https://github.com/google/sanitizers/issues/321.
char *res = REAL(tmpnam_r)(s);
if (res && s) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, s, REAL(strlen)(s) + 1);
return res;
#define INIT_TMPNAM_R
#endif
+#if SANITIZER_INTERCEPT_TTYNAME
+INTERCEPTOR(char *, ttyname, int fd) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, ttyname, fd);
+ char *res = REAL(ttyname)(fd);
+ if (res != nullptr)
+ COMMON_INTERCEPTOR_INITIALIZE_RANGE(res, REAL(strlen)(res) + 1);
+ return res;
+}
+#define INIT_TTYNAME COMMON_INTERCEPT_FUNCTION(ttyname);
+#else
+#define INIT_TTYNAME
+#endif
+
+#if SANITIZER_INTERCEPT_TTYNAME_R
+INTERCEPTOR(int, ttyname_r, int fd, char *name, SIZE_T namesize) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, ttyname_r, fd, name, namesize);
+ int res = REAL(ttyname_r)(fd, name, namesize);
+ if (res == 0)
+ COMMON_INTERCEPTOR_WRITE_RANGE(ctx, name, REAL(strlen)(name) + 1);
+ return res;
+}
+#define INIT_TTYNAME_R COMMON_INTERCEPT_FUNCTION(ttyname_r);
+#else
+#define INIT_TTYNAME_R
+#endif
+
#if SANITIZER_INTERCEPT_TEMPNAM
INTERCEPTOR(char *, tempnam, char *dir, char *pfx) {
void *ctx;
if (dir) COMMON_INTERCEPTOR_READ_RANGE(ctx, dir, REAL(strlen)(dir) + 1);
if (pfx) COMMON_INTERCEPTOR_READ_RANGE(ctx, pfx, REAL(strlen)(pfx) + 1);
char *res = REAL(tempnam)(dir, pfx);
- if (res) COMMON_INTERCEPTOR_INITIALIZE_RANGE(ctx, res, REAL(strlen)(res) + 1);
+ if (res) COMMON_INTERCEPTOR_INITIALIZE_RANGE(res, REAL(strlen)(res) + 1);
return res;
}
#define INIT_TEMPNAM COMMON_INTERCEPT_FUNCTION(tempnam);
#define INIT_TEMPNAM
#endif
-#if SANITIZER_INTERCEPT_PTHREAD_SETNAME_NP
+#if SANITIZER_INTERCEPT_PTHREAD_SETNAME_NP && !SANITIZER_NETBSD
INTERCEPTOR(int, pthread_setname_np, uptr thread, const char *name) {
void *ctx;
COMMON_INTERCEPTOR_ENTER(ctx, pthread_setname_np, thread, name);
+ COMMON_INTERCEPTOR_READ_STRING(ctx, name, 0);
COMMON_INTERCEPTOR_SET_PTHREAD_NAME(ctx, thread, name);
return REAL(pthread_setname_np)(thread, name);
}
#define INIT_PTHREAD_SETNAME_NP COMMON_INTERCEPT_FUNCTION(pthread_setname_np);
+#elif SANITIZER_INTERCEPT_PTHREAD_SETNAME_NP && SANITIZER_NETBSD
+INTERCEPTOR(int, pthread_setname_np, uptr thread, const char *name, void *arg) {
+ void *ctx;
+ char newname[32]; // PTHREAD_MAX_NAMELEN_NP=32
+ COMMON_INTERCEPTOR_ENTER(ctx, pthread_setname_np, thread, name, arg);
+ COMMON_INTERCEPTOR_READ_STRING(ctx, name, 0);
+ internal_snprintf(newname, sizeof(newname), name, arg);
+ COMMON_INTERCEPTOR_SET_PTHREAD_NAME(ctx, thread, newname);
+ return REAL(pthread_setname_np)(thread, name, arg);
+}
+#define INIT_PTHREAD_SETNAME_NP COMMON_INTERCEPT_FUNCTION(pthread_setname_np);
#else
#define INIT_PTHREAD_SETNAME_NP
#endif
+#if SANITIZER_INTERCEPT_PTHREAD_GETNAME_NP
+INTERCEPTOR(int, pthread_getname_np, uptr thread, char *name, SIZE_T len) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, pthread_getname_np, thread, name, len);
+ int res = REAL(pthread_getname_np)(thread, name, len);
+ if (!res)
+ COMMON_INTERCEPTOR_WRITE_RANGE(ctx, name, internal_strnlen(name, len) + 1);
+ return res;
+}
+#define INIT_PTHREAD_GETNAME_NP COMMON_INTERCEPT_FUNCTION(pthread_getname_np);
+#else
+#define INIT_PTHREAD_GETNAME_NP
+#endif
+
#if SANITIZER_INTERCEPT_SINCOS
INTERCEPTOR(void, sincos, double x, double *sin, double *cos) {
void *ctx;
COMMON_INTERCEPTOR_ENTER(ctx, sincos, x, sin, cos);
+ // FIXME: under ASan the call below may write to freed memory and corrupt
+ // its metadata. See
+ // https://github.com/google/sanitizers/issues/321.
REAL(sincos)(x, sin, cos);
if (sin) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, sin, sizeof(*sin));
if (cos) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, cos, sizeof(*cos));
INTERCEPTOR(void, sincosf, float x, float *sin, float *cos) {
void *ctx;
COMMON_INTERCEPTOR_ENTER(ctx, sincosf, x, sin, cos);
+ // FIXME: under ASan the call below may write to freed memory and corrupt
+ // its metadata. See
+ // https://github.com/google/sanitizers/issues/321.
REAL(sincosf)(x, sin, cos);
if (sin) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, sin, sizeof(*sin));
if (cos) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, cos, sizeof(*cos));
INTERCEPTOR(void, sincosl, long double x, long double *sin, long double *cos) {
void *ctx;
COMMON_INTERCEPTOR_ENTER(ctx, sincosl, x, sin, cos);
+ // FIXME: under ASan the call below may write to freed memory and corrupt
+ // its metadata. See
+ // https://github.com/google/sanitizers/issues/321.
REAL(sincosl)(x, sin, cos);
if (sin) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, sin, sizeof(*sin));
if (cos) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, cos, sizeof(*cos));
#define INIT_SINCOS \
COMMON_INTERCEPT_FUNCTION(sincos); \
COMMON_INTERCEPT_FUNCTION(sincosf); \
- COMMON_INTERCEPT_FUNCTION(sincosl);
+ COMMON_INTERCEPT_FUNCTION_LDBL(sincosl);
#else
#define INIT_SINCOS
#endif
INTERCEPTOR(double, remquo, double x, double y, int *quo) {
void *ctx;
COMMON_INTERCEPTOR_ENTER(ctx, remquo, x, y, quo);
+ // FIXME: under ASan the call below may write to freed memory and corrupt
+ // its metadata. See
+ // https://github.com/google/sanitizers/issues/321.
double res = REAL(remquo)(x, y, quo);
if (quo) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, quo, sizeof(*quo));
return res;
INTERCEPTOR(float, remquof, float x, float y, int *quo) {
void *ctx;
COMMON_INTERCEPTOR_ENTER(ctx, remquof, x, y, quo);
+ // FIXME: under ASan the call below may write to freed memory and corrupt
+ // its metadata. See
+ // https://github.com/google/sanitizers/issues/321.
float res = REAL(remquof)(x, y, quo);
if (quo) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, quo, sizeof(*quo));
return res;
}
+#define INIT_REMQUO \
+ COMMON_INTERCEPT_FUNCTION(remquo); \
+ COMMON_INTERCEPT_FUNCTION(remquof);
+#else
+#define INIT_REMQUO
+#endif
+
+#if SANITIZER_INTERCEPT_REMQUOL
INTERCEPTOR(long double, remquol, long double x, long double y, int *quo) {
void *ctx;
COMMON_INTERCEPTOR_ENTER(ctx, remquol, x, y, quo);
+ // FIXME: under ASan the call below may write to freed memory and corrupt
+ // its metadata. See
+ // https://github.com/google/sanitizers/issues/321.
long double res = REAL(remquol)(x, y, quo);
if (quo) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, quo, sizeof(*quo));
return res;
}
-#define INIT_REMQUO \
- COMMON_INTERCEPT_FUNCTION(remquo); \
- COMMON_INTERCEPT_FUNCTION(remquof); \
- COMMON_INTERCEPT_FUNCTION(remquol);
+#define INIT_REMQUOL \
+ COMMON_INTERCEPT_FUNCTION_LDBL(remquol);
#else
-#define INIT_REMQUO
+#define INIT_REMQUOL
#endif
#if SANITIZER_INTERCEPT_LGAMMA
COMMON_INTERCEPTOR_WRITE_RANGE(ctx, &signgam, sizeof(signgam));
return res;
}
+#define INIT_LGAMMA \
+ COMMON_INTERCEPT_FUNCTION(lgamma); \
+ COMMON_INTERCEPT_FUNCTION(lgammaf);
+#else
+#define INIT_LGAMMA
+#endif
+
+#if SANITIZER_INTERCEPT_LGAMMAL
INTERCEPTOR(long double, lgammal, long double x) {
void *ctx;
COMMON_INTERCEPTOR_ENTER(ctx, lgammal, x);
COMMON_INTERCEPTOR_WRITE_RANGE(ctx, &signgam, sizeof(signgam));
return res;
}
-#define INIT_LGAMMA \
- COMMON_INTERCEPT_FUNCTION(lgamma); \
- COMMON_INTERCEPT_FUNCTION(lgammaf); \
- COMMON_INTERCEPT_FUNCTION(lgammal);
+#define INIT_LGAMMAL \
+ COMMON_INTERCEPT_FUNCTION_LDBL(lgammal);
#else
-#define INIT_LGAMMA
+#define INIT_LGAMMAL
#endif
#if SANITIZER_INTERCEPT_LGAMMA_R
INTERCEPTOR(double, lgamma_r, double x, int *signp) {
void *ctx;
COMMON_INTERCEPTOR_ENTER(ctx, lgamma_r, x, signp);
+ // FIXME: under ASan the call below may write to freed memory and corrupt
+ // its metadata. See
+ // https://github.com/google/sanitizers/issues/321.
double res = REAL(lgamma_r)(x, signp);
if (signp) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, signp, sizeof(*signp));
return res;
INTERCEPTOR(float, lgammaf_r, float x, int *signp) {
void *ctx;
COMMON_INTERCEPTOR_ENTER(ctx, lgammaf_r, x, signp);
+ // FIXME: under ASan the call below may write to freed memory and corrupt
+ // its metadata. See
+ // https://github.com/google/sanitizers/issues/321.
float res = REAL(lgammaf_r)(x, signp);
if (signp) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, signp, sizeof(*signp));
return res;
}
+#define INIT_LGAMMA_R \
+ COMMON_INTERCEPT_FUNCTION(lgamma_r); \
+ COMMON_INTERCEPT_FUNCTION(lgammaf_r);
+#else
+#define INIT_LGAMMA_R
+#endif
+
+#if SANITIZER_INTERCEPT_LGAMMAL_R
INTERCEPTOR(long double, lgammal_r, long double x, int *signp) {
void *ctx;
COMMON_INTERCEPTOR_ENTER(ctx, lgammal_r, x, signp);
+ // FIXME: under ASan the call below may write to freed memory and corrupt
+ // its metadata. See
+ // https://github.com/google/sanitizers/issues/321.
long double res = REAL(lgammal_r)(x, signp);
if (signp) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, signp, sizeof(*signp));
return res;
}
-#define INIT_LGAMMA_R \
- COMMON_INTERCEPT_FUNCTION(lgamma_r); \
- COMMON_INTERCEPT_FUNCTION(lgammaf_r); \
- COMMON_INTERCEPT_FUNCTION(lgammal_r);
+#define INIT_LGAMMAL_R COMMON_INTERCEPT_FUNCTION_LDBL(lgammal_r);
#else
-#define INIT_LGAMMA_R
+#define INIT_LGAMMAL_R
#endif
#if SANITIZER_INTERCEPT_DRAND48_R
INTERCEPTOR(int, drand48_r, void *buffer, double *result) {
void *ctx;
COMMON_INTERCEPTOR_ENTER(ctx, drand48_r, buffer, result);
+ // FIXME: under ASan the call below may write to freed memory and corrupt
+ // its metadata. See
+ // https://github.com/google/sanitizers/issues/321.
int res = REAL(drand48_r)(buffer, result);
if (result) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, result, sizeof(*result));
return res;
INTERCEPTOR(int, lrand48_r, void *buffer, long *result) {
void *ctx;
COMMON_INTERCEPTOR_ENTER(ctx, lrand48_r, buffer, result);
+ // FIXME: under ASan the call below may write to freed memory and corrupt
+ // its metadata. See
+ // https://github.com/google/sanitizers/issues/321.
int res = REAL(lrand48_r)(buffer, result);
if (result) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, result, sizeof(*result));
return res;
#define INIT_DRAND48_R
#endif
+#if SANITIZER_INTERCEPT_RAND_R
+INTERCEPTOR(int, rand_r, unsigned *seedp) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, rand_r, seedp);
+ COMMON_INTERCEPTOR_READ_RANGE(ctx, seedp, sizeof(*seedp));
+ return REAL(rand_r)(seedp);
+}
+#define INIT_RAND_R COMMON_INTERCEPT_FUNCTION(rand_r);
+#else
+#define INIT_RAND_R
+#endif
+
#if SANITIZER_INTERCEPT_GETLINE
INTERCEPTOR(SSIZE_T, getline, char **lineptr, SIZE_T *n, void *stream) {
void *ctx;
COMMON_INTERCEPTOR_ENTER(ctx, getline, lineptr, n, stream);
+ // FIXME: under ASan the call below may write to freed memory and corrupt
+ // its metadata. See
+ // https://github.com/google/sanitizers/issues/321.
SSIZE_T res = REAL(getline)(lineptr, n, stream);
if (res > 0) {
COMMON_INTERCEPTOR_WRITE_RANGE(ctx, lineptr, sizeof(*lineptr));
}
return res;
}
-INTERCEPTOR(SSIZE_T, getdelim, char **lineptr, SIZE_T *n, int delim,
- void *stream) {
- void *ctx;
- COMMON_INTERCEPTOR_ENTER(ctx, getdelim, lineptr, n, delim, stream);
- SSIZE_T res = REAL(getdelim)(lineptr, n, delim, stream);
- if (res > 0) {
- COMMON_INTERCEPTOR_WRITE_RANGE(ctx, lineptr, sizeof(*lineptr));
- COMMON_INTERCEPTOR_WRITE_RANGE(ctx, n, sizeof(*n));
- COMMON_INTERCEPTOR_WRITE_RANGE(ctx, *lineptr, res + 1);
+
+// FIXME: under ASan the call below may write to freed memory and corrupt its
+// metadata. See
+// https://github.com/google/sanitizers/issues/321.
+#define GETDELIM_INTERCEPTOR_IMPL(vname) \
+ { \
+ void *ctx; \
+ COMMON_INTERCEPTOR_ENTER(ctx, vname, lineptr, n, delim, stream); \
+ SSIZE_T res = REAL(vname)(lineptr, n, delim, stream); \
+ if (res > 0) { \
+ COMMON_INTERCEPTOR_WRITE_RANGE(ctx, lineptr, sizeof(*lineptr)); \
+ COMMON_INTERCEPTOR_WRITE_RANGE(ctx, n, sizeof(*n)); \
+ COMMON_INTERCEPTOR_WRITE_RANGE(ctx, *lineptr, res + 1); \
+ } \
+ return res; \
}
- return res;
-}
-#define INIT_GETLINE \
- COMMON_INTERCEPT_FUNCTION(getline); \
+
+INTERCEPTOR(SSIZE_T, __getdelim, char **lineptr, SIZE_T *n, int delim,
+ void *stream)
+GETDELIM_INTERCEPTOR_IMPL(__getdelim)
+
+// There's no __getdelim() on FreeBSD so we supply the getdelim() interceptor
+// with its own body.
+INTERCEPTOR(SSIZE_T, getdelim, char **lineptr, SIZE_T *n, int delim,
+ void *stream)
+GETDELIM_INTERCEPTOR_IMPL(getdelim)
+
+#define INIT_GETLINE \
+ COMMON_INTERCEPT_FUNCTION(getline); \
+ COMMON_INTERCEPT_FUNCTION(__getdelim); \
COMMON_INTERCEPT_FUNCTION(getdelim);
#else
#define INIT_GETLINE
COMMON_INTERCEPTOR_READ_RANGE(ctx, *inbuf, *inbytesleft);
if (outbytesleft)
COMMON_INTERCEPTOR_READ_RANGE(ctx, outbytesleft, sizeof(*outbytesleft));
- void *outbuf_orig = outbuf ? *outbuf : 0;
+ void *outbuf_orig = outbuf ? *outbuf : nullptr;
+ // FIXME: under ASan the call below may write to freed memory and corrupt
+ // its metadata. See
+ // https://github.com/google/sanitizers/issues/321.
SIZE_T res = REAL(iconv)(cd, inbuf, inbytesleft, outbuf, outbytesleft);
- if (res != (SIZE_T) - 1 && outbuf && *outbuf > outbuf_orig) {
+ if (outbuf && *outbuf > outbuf_orig) {
SIZE_T sz = (char *)*outbuf - (char *)outbuf_orig;
COMMON_INTERCEPTOR_WRITE_RANGE(ctx, outbuf_orig, sz);
}
INTERCEPTOR(__sanitizer_clock_t, times, void *tms) {
void *ctx;
COMMON_INTERCEPTOR_ENTER(ctx, times, tms);
+ // FIXME: under ASan the call below may write to freed memory and corrupt
+ // its metadata. See
+ // https://github.com/google/sanitizers/issues/321.
__sanitizer_clock_t res = REAL(times)(tms);
if (res != (__sanitizer_clock_t)-1 && tms)
COMMON_INTERCEPTOR_WRITE_RANGE(ctx, tms, struct_tms_sz);
#define INIT_TIMES
#endif
-#define SANITIZER_COMMON_INTERCEPTORS_INIT \
- INIT_TEXTDOMAIN; \
- INIT_STRCMP; \
- INIT_STRNCMP; \
- INIT_STRCASECMP; \
- INIT_STRNCASECMP; \
- INIT_READ; \
- INIT_PREAD; \
- INIT_PREAD64; \
- INIT_READV; \
- INIT_PREADV; \
- INIT_PREADV64; \
- INIT_WRITE; \
- INIT_PWRITE; \
- INIT_PWRITE64; \
- INIT_WRITEV; \
- INIT_PWRITEV; \
- INIT_PWRITEV64; \
- INIT_PRCTL; \
- INIT_LOCALTIME_AND_FRIENDS; \
- INIT_STRPTIME; \
- INIT_SCANF; \
- INIT_ISOC99_SCANF; \
- INIT_FREXP; \
- INIT_FREXPF_FREXPL; \
- INIT_GETPWNAM_AND_FRIENDS; \
- INIT_GETPWNAM_R_AND_FRIENDS; \
- INIT_CLOCK_GETTIME; \
- INIT_GETITIMER; \
- INIT_TIME; \
- INIT_GLOB; \
- INIT_WAIT; \
- INIT_INET; \
- INIT_PTHREAD_GETSCHEDPARAM; \
- INIT_GETADDRINFO; \
- INIT_GETNAMEINFO; \
- INIT_GETSOCKNAME; \
- INIT_GETHOSTBYNAME; \
- INIT_GETHOSTBYNAME_R; \
- INIT_GETSOCKOPT; \
- INIT_ACCEPT; \
- INIT_ACCEPT4; \
- INIT_MODF; \
- INIT_RECVMSG; \
- INIT_GETPEERNAME; \
- INIT_IOCTL; \
- INIT_INET_ATON; \
- INIT_SYSINFO; \
- INIT_READDIR; \
- INIT_READDIR64; \
- INIT_PTRACE; \
- INIT_SETLOCALE; \
- INIT_GETCWD; \
- INIT_GET_CURRENT_DIR_NAME; \
- INIT_STRTOIMAX; \
- INIT_MBSTOWCS; \
- INIT_MBSNRTOWCS; \
- INIT_WCSTOMBS; \
- INIT_WCSNRTOMBS; \
- INIT_TCGETATTR; \
- INIT_REALPATH; \
- INIT_CANONICALIZE_FILE_NAME; \
- INIT_CONFSTR; \
- INIT_SCHED_GETAFFINITY; \
- INIT_STRERROR; \
- INIT_STRERROR_R; \
- INIT_XPG_STRERROR_R; \
- INIT_SCANDIR; \
- INIT_SCANDIR64; \
- INIT_GETGROUPS; \
- INIT_POLL; \
- INIT_PPOLL; \
- INIT_WORDEXP; \
- INIT_SIGWAIT; \
- INIT_SIGWAITINFO; \
- INIT_SIGTIMEDWAIT; \
- INIT_SIGSETOPS; \
- INIT_SIGPENDING; \
- INIT_SIGPROCMASK; \
- INIT_BACKTRACE; \
- INIT__EXIT; \
- INIT_PTHREAD_MUTEX_LOCK; \
- INIT_PTHREAD_MUTEX_UNLOCK; \
- INIT_PTHREAD_COND_WAIT; \
- INIT_PTHREAD_COND_INIT; \
- INIT_PTHREAD_COND_SIGNAL; \
- INIT_PTHREAD_COND_BROADCAST; \
- INIT_GETMNTENT; \
- INIT_GETMNTENT_R; \
- INIT_STATFS; \
- INIT_STATFS64; \
- INIT_STATVFS; \
- INIT_STATVFS64; \
- INIT_INITGROUPS; \
- INIT_ETHER; \
- INIT_ETHER_R; \
- INIT_SHMCTL; \
- INIT_RANDOM_R; \
- INIT_PTHREAD_ATTR_GET; \
- INIT_PTHREAD_ATTR_GETINHERITSCHED; \
- INIT_PTHREAD_ATTR_GETAFFINITY_NP; \
- INIT_TMPNAM; \
- INIT_TMPNAM_R; \
- INIT_TEMPNAM; \
- INIT_PTHREAD_SETNAME_NP; \
- INIT_SINCOS; \
- INIT_REMQUO; \
- INIT_LGAMMA; \
- INIT_LGAMMA_R; \
- INIT_DRAND48_R; \
- INIT_GETLINE; \
- INIT_ICONV; \
- INIT_TIMES; \
-/**/
+#if SANITIZER_INTERCEPT_TLS_GET_ADDR
+#if !SANITIZER_S390
+#define INIT_TLS_GET_ADDR COMMON_INTERCEPT_FUNCTION(__tls_get_addr)
+// If you see any crashes around this functions, there are 2 known issues with
+// it: 1. __tls_get_addr can be called with mis-aligned stack due to:
+// https://gcc.gnu.org/bugzilla/show_bug.cgi?id=58066
+// 2. It can be called recursively if sanitizer code uses __tls_get_addr
+// to access thread local variables (it should not happen normally,
+// because sanitizers use initial-exec tls model).
+INTERCEPTOR(void *, __tls_get_addr, void *arg) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, __tls_get_addr, arg);
+ void *res = REAL(__tls_get_addr)(arg);
+ uptr tls_begin, tls_end;
+ COMMON_INTERCEPTOR_GET_TLS_RANGE(&tls_begin, &tls_end);
+ DTLS::DTV *dtv = DTLS_on_tls_get_addr(arg, res, tls_begin, tls_end);
+ if (dtv) {
+ // New DTLS block has been allocated.
+ COMMON_INTERCEPTOR_INITIALIZE_RANGE((void *)dtv->beg, dtv->size);
+ }
+ return res;
+}
+#if SANITIZER_PPC
+// On PowerPC, we also need to intercept __tls_get_addr_opt, which has
+// mostly the same semantics as __tls_get_addr, but its presence enables
+// some optimizations in linker (which are safe to ignore here).
+extern "C" __attribute__((alias("__interceptor___tls_get_addr"),
+ visibility("default")))
+void *__tls_get_addr_opt(void *arg);
+#endif
+#else // SANITIZER_S390
+// On s390, we have to intercept two functions here:
+// - __tls_get_addr_internal, which is a glibc-internal function that is like
+// the usual __tls_get_addr, but returns a TP-relative offset instead of
+// a proper pointer. It is used by dlsym for TLS symbols.
+// - __tls_get_offset, which is like the above, but also takes a GOT-relative
+// descriptor offset as an argument instead of a pointer. GOT address
+// is passed in r12, so it's necessary to write it in assembly. This is
+// the function used by the compiler.
+extern "C" uptr __tls_get_offset_wrapper(void *arg, uptr (*fn)(void *arg));
+#define INIT_TLS_GET_ADDR COMMON_INTERCEPT_FUNCTION(__tls_get_offset)
+DEFINE_REAL(uptr, __tls_get_offset, void *arg)
+extern "C" uptr __tls_get_offset(void *arg);
+extern "C" uptr __interceptor___tls_get_offset(void *arg);
+INTERCEPTOR(uptr, __tls_get_addr_internal, void *arg) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, __tls_get_addr_internal, arg);
+ uptr res = __tls_get_offset_wrapper(arg, REAL(__tls_get_offset));
+ uptr tp = reinterpret_cast<uptr>(__builtin_thread_pointer());
+ void *ptr = reinterpret_cast<void *>(res + tp);
+ uptr tls_begin, tls_end;
+ COMMON_INTERCEPTOR_GET_TLS_RANGE(&tls_begin, &tls_end);
+ DTLS::DTV *dtv = DTLS_on_tls_get_addr(arg, ptr, tls_begin, tls_end);
+ if (dtv) {
+ // New DTLS block has been allocated.
+ COMMON_INTERCEPTOR_INITIALIZE_RANGE((void *)dtv->beg, dtv->size);
+ }
+ return res;
+}
+// We need a hidden symbol aliasing the above, so that we can jump
+// directly to it from the assembly below.
+extern "C" __attribute__((alias("__interceptor___tls_get_addr_internal"),
+ visibility("hidden")))
+uptr __tls_get_addr_hidden(void *arg);
+// Now carefully intercept __tls_get_offset.
+asm(
+ ".text\n"
+// The __intercept_ version has to exist, so that gen_dynamic_list.py
+// exports our symbol.
+ ".weak __tls_get_offset\n"
+ ".type __tls_get_offset, @function\n"
+ "__tls_get_offset:\n"
+ ".global __interceptor___tls_get_offset\n"
+ ".type __interceptor___tls_get_offset, @function\n"
+ "__interceptor___tls_get_offset:\n"
+#ifdef __s390x__
+ "la %r2, 0(%r2,%r12)\n"
+ "jg __tls_get_addr_hidden\n"
+#else
+ "basr %r3,0\n"
+ "0: la %r2,0(%r2,%r12)\n"
+ "l %r4,1f-0b(%r3)\n"
+ "b 0(%r4,%r3)\n"
+ "1: .long __tls_get_addr_hidden - 0b\n"
+#endif
+ ".size __interceptor___tls_get_offset, .-__interceptor___tls_get_offset\n"
+// Assembly wrapper to call REAL(__tls_get_offset)(arg)
+ ".type __tls_get_offset_wrapper, @function\n"
+ "__tls_get_offset_wrapper:\n"
+#ifdef __s390x__
+ "sgr %r2,%r12\n"
+#else
+ "sr %r2,%r12\n"
+#endif
+ "br %r3\n"
+ ".size __tls_get_offset_wrapper, .-__tls_get_offset_wrapper\n"
+);
+#endif // SANITIZER_S390
+#else
+#define INIT_TLS_GET_ADDR
+#endif
+
+#if SANITIZER_INTERCEPT_LISTXATTR
+INTERCEPTOR(SSIZE_T, listxattr, const char *path, char *list, SIZE_T size) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, listxattr, path, list, size);
+ if (path) COMMON_INTERCEPTOR_READ_RANGE(ctx, path, REAL(strlen)(path) + 1);
+ // FIXME: under ASan the call below may write to freed memory and corrupt
+ // its metadata. See
+ // https://github.com/google/sanitizers/issues/321.
+ SSIZE_T res = REAL(listxattr)(path, list, size);
+ // Here and below, size == 0 is a special case where nothing is written to the
+ // buffer, and res contains the desired buffer size.
+ if (size && res > 0 && list) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, list, res);
+ return res;
+}
+INTERCEPTOR(SSIZE_T, llistxattr, const char *path, char *list, SIZE_T size) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, llistxattr, path, list, size);
+ if (path) COMMON_INTERCEPTOR_READ_RANGE(ctx, path, REAL(strlen)(path) + 1);
+ // FIXME: under ASan the call below may write to freed memory and corrupt
+ // its metadata. See
+ // https://github.com/google/sanitizers/issues/321.
+ SSIZE_T res = REAL(llistxattr)(path, list, size);
+ if (size && res > 0 && list) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, list, res);
+ return res;
+}
+INTERCEPTOR(SSIZE_T, flistxattr, int fd, char *list, SIZE_T size) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, flistxattr, fd, list, size);
+ // FIXME: under ASan the call below may write to freed memory and corrupt
+ // its metadata. See
+ // https://github.com/google/sanitizers/issues/321.
+ SSIZE_T res = REAL(flistxattr)(fd, list, size);
+ if (size && res > 0 && list) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, list, res);
+ return res;
+}
+#define INIT_LISTXATTR \
+ COMMON_INTERCEPT_FUNCTION(listxattr); \
+ COMMON_INTERCEPT_FUNCTION(llistxattr); \
+ COMMON_INTERCEPT_FUNCTION(flistxattr);
+#else
+#define INIT_LISTXATTR
+#endif
+
+#if SANITIZER_INTERCEPT_GETXATTR
+INTERCEPTOR(SSIZE_T, getxattr, const char *path, const char *name, char *value,
+ SIZE_T size) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, getxattr, path, name, value, size);
+ if (path) COMMON_INTERCEPTOR_READ_RANGE(ctx, path, REAL(strlen)(path) + 1);
+ if (name) COMMON_INTERCEPTOR_READ_RANGE(ctx, name, REAL(strlen)(name) + 1);
+ // FIXME: under ASan the call below may write to freed memory and corrupt
+ // its metadata. See
+ // https://github.com/google/sanitizers/issues/321.
+ SSIZE_T res = REAL(getxattr)(path, name, value, size);
+ if (size && res > 0 && value) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, value, res);
+ return res;
+}
+INTERCEPTOR(SSIZE_T, lgetxattr, const char *path, const char *name, char *value,
+ SIZE_T size) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, lgetxattr, path, name, value, size);
+ if (path) COMMON_INTERCEPTOR_READ_RANGE(ctx, path, REAL(strlen)(path) + 1);
+ if (name) COMMON_INTERCEPTOR_READ_RANGE(ctx, name, REAL(strlen)(name) + 1);
+ // FIXME: under ASan the call below may write to freed memory and corrupt
+ // its metadata. See
+ // https://github.com/google/sanitizers/issues/321.
+ SSIZE_T res = REAL(lgetxattr)(path, name, value, size);
+ if (size && res > 0 && value) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, value, res);
+ return res;
+}
+INTERCEPTOR(SSIZE_T, fgetxattr, int fd, const char *name, char *value,
+ SIZE_T size) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, fgetxattr, fd, name, value, size);
+ if (name) COMMON_INTERCEPTOR_READ_RANGE(ctx, name, REAL(strlen)(name) + 1);
+ // FIXME: under ASan the call below may write to freed memory and corrupt
+ // its metadata. See
+ // https://github.com/google/sanitizers/issues/321.
+ SSIZE_T res = REAL(fgetxattr)(fd, name, value, size);
+ if (size && res > 0 && value) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, value, res);
+ return res;
+}
+#define INIT_GETXATTR \
+ COMMON_INTERCEPT_FUNCTION(getxattr); \
+ COMMON_INTERCEPT_FUNCTION(lgetxattr); \
+ COMMON_INTERCEPT_FUNCTION(fgetxattr);
+#else
+#define INIT_GETXATTR
+#endif
+
+#if SANITIZER_INTERCEPT_GETRESID
+INTERCEPTOR(int, getresuid, void *ruid, void *euid, void *suid) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, getresuid, ruid, euid, suid);
+ // FIXME: under ASan the call below may write to freed memory and corrupt
+ // its metadata. See
+ // https://github.com/google/sanitizers/issues/321.
+ int res = REAL(getresuid)(ruid, euid, suid);
+ if (res >= 0) {
+ if (ruid) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, ruid, uid_t_sz);
+ if (euid) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, euid, uid_t_sz);
+ if (suid) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, suid, uid_t_sz);
+ }
+ return res;
+}
+INTERCEPTOR(int, getresgid, void *rgid, void *egid, void *sgid) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, getresgid, rgid, egid, sgid);
+ // FIXME: under ASan the call below may write to freed memory and corrupt
+ // its metadata. See
+ // https://github.com/google/sanitizers/issues/321.
+ int res = REAL(getresgid)(rgid, egid, sgid);
+ if (res >= 0) {
+ if (rgid) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, rgid, gid_t_sz);
+ if (egid) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, egid, gid_t_sz);
+ if (sgid) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, sgid, gid_t_sz);
+ }
+ return res;
+}
+#define INIT_GETRESID \
+ COMMON_INTERCEPT_FUNCTION(getresuid); \
+ COMMON_INTERCEPT_FUNCTION(getresgid);
+#else
+#define INIT_GETRESID
+#endif
+
+#if SANITIZER_INTERCEPT_GETIFADDRS
+// As long as getifaddrs()/freeifaddrs() use calloc()/free(), we don't need to
+// intercept freeifaddrs(). If that ceases to be the case, we might need to
+// intercept it to poison the memory again.
+INTERCEPTOR(int, getifaddrs, __sanitizer_ifaddrs **ifap) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, getifaddrs, ifap);
+ // FIXME: under ASan the call below may write to freed memory and corrupt
+ // its metadata. See
+ // https://github.com/google/sanitizers/issues/321.
+ int res = REAL(getifaddrs)(ifap);
+ if (res == 0 && ifap) {
+ COMMON_INTERCEPTOR_WRITE_RANGE(ctx, ifap, sizeof(void *));
+ __sanitizer_ifaddrs *p = *ifap;
+ while (p) {
+ COMMON_INTERCEPTOR_WRITE_RANGE(ctx, p, sizeof(__sanitizer_ifaddrs));
+ if (p->ifa_name)
+ COMMON_INTERCEPTOR_WRITE_RANGE(ctx, p->ifa_name,
+ REAL(strlen)(p->ifa_name) + 1);
+ if (p->ifa_addr)
+ COMMON_INTERCEPTOR_WRITE_RANGE(ctx, p->ifa_addr, struct_sockaddr_sz);
+ if (p->ifa_netmask)
+ COMMON_INTERCEPTOR_WRITE_RANGE(ctx, p->ifa_netmask, struct_sockaddr_sz);
+ // On Linux this is a union, but the other member also points to a
+ // struct sockaddr, so the following is sufficient.
+ if (p->ifa_dstaddr)
+ COMMON_INTERCEPTOR_WRITE_RANGE(ctx, p->ifa_dstaddr, struct_sockaddr_sz);
+ // FIXME(smatveev): Unpoison p->ifa_data as well.
+ p = p->ifa_next;
+ }
+ }
+ return res;
+}
+#define INIT_GETIFADDRS \
+ COMMON_INTERCEPT_FUNCTION(getifaddrs);
+#else
+#define INIT_GETIFADDRS
+#endif
+
+#if SANITIZER_INTERCEPT_IF_INDEXTONAME
+INTERCEPTOR(char *, if_indextoname, unsigned int ifindex, char* ifname) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, if_indextoname, ifindex, ifname);
+ // FIXME: under ASan the call below may write to freed memory and corrupt
+ // its metadata. See
+ // https://github.com/google/sanitizers/issues/321.
+ char *res = REAL(if_indextoname)(ifindex, ifname);
+ if (res && ifname)
+ COMMON_INTERCEPTOR_WRITE_RANGE(ctx, ifname, REAL(strlen)(ifname) + 1);
+ return res;
+}
+INTERCEPTOR(unsigned int, if_nametoindex, const char* ifname) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, if_nametoindex, ifname);
+ if (ifname)
+ COMMON_INTERCEPTOR_READ_RANGE(ctx, ifname, REAL(strlen)(ifname) + 1);
+ return REAL(if_nametoindex)(ifname);
+}
+#define INIT_IF_INDEXTONAME \
+ COMMON_INTERCEPT_FUNCTION(if_indextoname); \
+ COMMON_INTERCEPT_FUNCTION(if_nametoindex);
+#else
+#define INIT_IF_INDEXTONAME
+#endif
+
+#if SANITIZER_INTERCEPT_CAPGET
+INTERCEPTOR(int, capget, void *hdrp, void *datap) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, capget, hdrp, datap);
+ if (hdrp)
+ COMMON_INTERCEPTOR_READ_RANGE(ctx, hdrp, __user_cap_header_struct_sz);
+ // FIXME: under ASan the call below may write to freed memory and corrupt
+ // its metadata. See
+ // https://github.com/google/sanitizers/issues/321.
+ int res = REAL(capget)(hdrp, datap);
+ if (res == 0 && datap)
+ COMMON_INTERCEPTOR_WRITE_RANGE(ctx, datap, __user_cap_data_struct_sz);
+ // We can also return -1 and write to hdrp->version if the version passed in
+ // hdrp->version is unsupported. But that's not a trivial condition to check,
+ // and anyway COMMON_INTERCEPTOR_READ_RANGE protects us to some extent.
+ return res;
+}
+INTERCEPTOR(int, capset, void *hdrp, const void *datap) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, capset, hdrp, datap);
+ if (hdrp)
+ COMMON_INTERCEPTOR_READ_RANGE(ctx, hdrp, __user_cap_header_struct_sz);
+ if (datap)
+ COMMON_INTERCEPTOR_READ_RANGE(ctx, datap, __user_cap_data_struct_sz);
+ return REAL(capset)(hdrp, datap);
+}
+#define INIT_CAPGET \
+ COMMON_INTERCEPT_FUNCTION(capget); \
+ COMMON_INTERCEPT_FUNCTION(capset);
+#else
+#define INIT_CAPGET
+#endif
+
+#if SANITIZER_INTERCEPT_AEABI_MEM
+INTERCEPTOR(void *, __aeabi_memmove, void *to, const void *from, uptr size) {
+ void *ctx;
+ COMMON_INTERCEPTOR_MEMMOVE_IMPL(ctx, to, from, size);
+}
+
+INTERCEPTOR(void *, __aeabi_memmove4, void *to, const void *from, uptr size) {
+ void *ctx;
+ COMMON_INTERCEPTOR_MEMMOVE_IMPL(ctx, to, from, size);
+}
+
+INTERCEPTOR(void *, __aeabi_memmove8, void *to, const void *from, uptr size) {
+ void *ctx;
+ COMMON_INTERCEPTOR_MEMMOVE_IMPL(ctx, to, from, size);
+}
+
+INTERCEPTOR(void *, __aeabi_memcpy, void *to, const void *from, uptr size) {
+ void *ctx;
+ COMMON_INTERCEPTOR_MEMCPY_IMPL(ctx, to, from, size);
+}
+
+INTERCEPTOR(void *, __aeabi_memcpy4, void *to, const void *from, uptr size) {
+ void *ctx;
+ COMMON_INTERCEPTOR_MEMCPY_IMPL(ctx, to, from, size);
+}
+
+INTERCEPTOR(void *, __aeabi_memcpy8, void *to, const void *from, uptr size) {
+ void *ctx;
+ COMMON_INTERCEPTOR_MEMCPY_IMPL(ctx, to, from, size);
+}
+
+// Note the argument order.
+INTERCEPTOR(void *, __aeabi_memset, void *block, uptr size, int c) {
+ void *ctx;
+ COMMON_INTERCEPTOR_MEMSET_IMPL(ctx, block, c, size);
+}
+
+INTERCEPTOR(void *, __aeabi_memset4, void *block, uptr size, int c) {
+ void *ctx;
+ COMMON_INTERCEPTOR_MEMSET_IMPL(ctx, block, c, size);
+}
+
+INTERCEPTOR(void *, __aeabi_memset8, void *block, uptr size, int c) {
+ void *ctx;
+ COMMON_INTERCEPTOR_MEMSET_IMPL(ctx, block, c, size);
+}
+
+INTERCEPTOR(void *, __aeabi_memclr, void *block, uptr size) {
+ void *ctx;
+ COMMON_INTERCEPTOR_MEMSET_IMPL(ctx, block, 0, size);
+}
+
+INTERCEPTOR(void *, __aeabi_memclr4, void *block, uptr size) {
+ void *ctx;
+ COMMON_INTERCEPTOR_MEMSET_IMPL(ctx, block, 0, size);
+}
+
+INTERCEPTOR(void *, __aeabi_memclr8, void *block, uptr size) {
+ void *ctx;
+ COMMON_INTERCEPTOR_MEMSET_IMPL(ctx, block, 0, size);
+}
+
+#define INIT_AEABI_MEM \
+ COMMON_INTERCEPT_FUNCTION(__aeabi_memmove); \
+ COMMON_INTERCEPT_FUNCTION(__aeabi_memmove4); \
+ COMMON_INTERCEPT_FUNCTION(__aeabi_memmove8); \
+ COMMON_INTERCEPT_FUNCTION(__aeabi_memcpy); \
+ COMMON_INTERCEPT_FUNCTION(__aeabi_memcpy4); \
+ COMMON_INTERCEPT_FUNCTION(__aeabi_memcpy8); \
+ COMMON_INTERCEPT_FUNCTION(__aeabi_memset); \
+ COMMON_INTERCEPT_FUNCTION(__aeabi_memset4); \
+ COMMON_INTERCEPT_FUNCTION(__aeabi_memset8); \
+ COMMON_INTERCEPT_FUNCTION(__aeabi_memclr); \
+ COMMON_INTERCEPT_FUNCTION(__aeabi_memclr4); \
+ COMMON_INTERCEPT_FUNCTION(__aeabi_memclr8);
+#else
+#define INIT_AEABI_MEM
+#endif // SANITIZER_INTERCEPT_AEABI_MEM
+
+#if SANITIZER_INTERCEPT___BZERO
+INTERCEPTOR(void *, __bzero, void *block, uptr size) {
+ void *ctx;
+ COMMON_INTERCEPTOR_MEMSET_IMPL(ctx, block, 0, size);
+}
+#define INIT___BZERO COMMON_INTERCEPT_FUNCTION(__bzero);
+#else
+#define INIT___BZERO
+#endif // SANITIZER_INTERCEPT___BZERO
+
+#if SANITIZER_INTERCEPT_BZERO
+INTERCEPTOR(void *, bzero, void *block, uptr size) {
+ void *ctx;
+ COMMON_INTERCEPTOR_MEMSET_IMPL(ctx, block, 0, size);
+}
+#define INIT_BZERO COMMON_INTERCEPT_FUNCTION(bzero);
+#else
+#define INIT_BZERO
+#endif // SANITIZER_INTERCEPT_BZERO
+
+#if SANITIZER_INTERCEPT_FTIME
+INTERCEPTOR(int, ftime, __sanitizer_timeb *tp) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, ftime, tp);
+ // FIXME: under ASan the call below may write to freed memory and corrupt
+ // its metadata. See
+ // https://github.com/google/sanitizers/issues/321.
+ int res = REAL(ftime)(tp);
+ if (tp)
+ COMMON_INTERCEPTOR_WRITE_RANGE(ctx, tp, sizeof(*tp));
+ return res;
+}
+#define INIT_FTIME COMMON_INTERCEPT_FUNCTION(ftime);
+#else
+#define INIT_FTIME
+#endif // SANITIZER_INTERCEPT_FTIME
+
+#if SANITIZER_INTERCEPT_XDR
+INTERCEPTOR(void, xdrmem_create, __sanitizer_XDR *xdrs, uptr addr,
+ unsigned size, int op) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, xdrmem_create, xdrs, addr, size, op);
+ // FIXME: under ASan the call below may write to freed memory and corrupt
+ // its metadata. See
+ // https://github.com/google/sanitizers/issues/321.
+ REAL(xdrmem_create)(xdrs, addr, size, op);
+ COMMON_INTERCEPTOR_WRITE_RANGE(ctx, xdrs, sizeof(*xdrs));
+ if (op == __sanitizer_XDR_ENCODE) {
+ // It's not obvious how much data individual xdr_ routines write.
+ // Simply unpoison the entire target buffer in advance.
+ COMMON_INTERCEPTOR_WRITE_RANGE(ctx, (void *)addr, size);
+ }
+}
+
+INTERCEPTOR(void, xdrstdio_create, __sanitizer_XDR *xdrs, void *file, int op) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, xdrstdio_create, xdrs, file, op);
+ // FIXME: under ASan the call below may write to freed memory and corrupt
+ // its metadata. See
+ // https://github.com/google/sanitizers/issues/321.
+ REAL(xdrstdio_create)(xdrs, file, op);
+ COMMON_INTERCEPTOR_WRITE_RANGE(ctx, xdrs, sizeof(*xdrs));
+}
+
+// FIXME: under ASan the call below may write to freed memory and corrupt
+// its metadata. See
+// https://github.com/google/sanitizers/issues/321.
+#define XDR_INTERCEPTOR(F, T) \
+ INTERCEPTOR(int, F, __sanitizer_XDR *xdrs, T *p) { \
+ void *ctx; \
+ COMMON_INTERCEPTOR_ENTER(ctx, F, xdrs, p); \
+ if (p && xdrs->x_op == __sanitizer_XDR_ENCODE) \
+ COMMON_INTERCEPTOR_READ_RANGE(ctx, p, sizeof(*p)); \
+ int res = REAL(F)(xdrs, p); \
+ if (res && p && xdrs->x_op == __sanitizer_XDR_DECODE) \
+ COMMON_INTERCEPTOR_WRITE_RANGE(ctx, p, sizeof(*p)); \
+ return res; \
+ }
+
+XDR_INTERCEPTOR(xdr_short, short)
+XDR_INTERCEPTOR(xdr_u_short, unsigned short)
+XDR_INTERCEPTOR(xdr_int, int)
+XDR_INTERCEPTOR(xdr_u_int, unsigned)
+XDR_INTERCEPTOR(xdr_long, long)
+XDR_INTERCEPTOR(xdr_u_long, unsigned long)
+XDR_INTERCEPTOR(xdr_hyper, long long)
+XDR_INTERCEPTOR(xdr_u_hyper, unsigned long long)
+XDR_INTERCEPTOR(xdr_longlong_t, long long)
+XDR_INTERCEPTOR(xdr_u_longlong_t, unsigned long long)
+XDR_INTERCEPTOR(xdr_int8_t, u8)
+XDR_INTERCEPTOR(xdr_uint8_t, u8)
+XDR_INTERCEPTOR(xdr_int16_t, u16)
+XDR_INTERCEPTOR(xdr_uint16_t, u16)
+XDR_INTERCEPTOR(xdr_int32_t, u32)
+XDR_INTERCEPTOR(xdr_uint32_t, u32)
+XDR_INTERCEPTOR(xdr_int64_t, u64)
+XDR_INTERCEPTOR(xdr_uint64_t, u64)
+XDR_INTERCEPTOR(xdr_quad_t, long long)
+XDR_INTERCEPTOR(xdr_u_quad_t, unsigned long long)
+XDR_INTERCEPTOR(xdr_bool, bool)
+XDR_INTERCEPTOR(xdr_enum, int)
+XDR_INTERCEPTOR(xdr_char, char)
+XDR_INTERCEPTOR(xdr_u_char, unsigned char)
+XDR_INTERCEPTOR(xdr_float, float)
+XDR_INTERCEPTOR(xdr_double, double)
+
+// FIXME: intercept xdr_array, opaque, union, vector, reference, pointer,
+// wrapstring, sizeof
+
+INTERCEPTOR(int, xdr_bytes, __sanitizer_XDR *xdrs, char **p, unsigned *sizep,
+ unsigned maxsize) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, xdr_bytes, xdrs, p, sizep, maxsize);
+ if (p && sizep && xdrs->x_op == __sanitizer_XDR_ENCODE) {
+ COMMON_INTERCEPTOR_READ_RANGE(ctx, p, sizeof(*p));
+ COMMON_INTERCEPTOR_READ_RANGE(ctx, sizep, sizeof(*sizep));
+ COMMON_INTERCEPTOR_READ_RANGE(ctx, *p, *sizep);
+ }
+ // FIXME: under ASan the call below may write to freed memory and corrupt
+ // its metadata. See
+ // https://github.com/google/sanitizers/issues/321.
+ int res = REAL(xdr_bytes)(xdrs, p, sizep, maxsize);
+ if (p && sizep && xdrs->x_op == __sanitizer_XDR_DECODE) {
+ COMMON_INTERCEPTOR_WRITE_RANGE(ctx, p, sizeof(*p));
+ COMMON_INTERCEPTOR_WRITE_RANGE(ctx, sizep, sizeof(*sizep));
+ if (res && *p && *sizep) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, *p, *sizep);
+ }
+ return res;
+}
+
+INTERCEPTOR(int, xdr_string, __sanitizer_XDR *xdrs, char **p,
+ unsigned maxsize) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, xdr_string, xdrs, p, maxsize);
+ if (p && xdrs->x_op == __sanitizer_XDR_ENCODE) {
+ COMMON_INTERCEPTOR_READ_RANGE(ctx, p, sizeof(*p));
+ COMMON_INTERCEPTOR_READ_RANGE(ctx, *p, REAL(strlen)(*p) + 1);
+ }
+ // FIXME: under ASan the call below may write to freed memory and corrupt
+ // its metadata. See
+ // https://github.com/google/sanitizers/issues/321.
+ int res = REAL(xdr_string)(xdrs, p, maxsize);
+ if (p && xdrs->x_op == __sanitizer_XDR_DECODE) {
+ COMMON_INTERCEPTOR_WRITE_RANGE(ctx, p, sizeof(*p));
+ if (res && *p)
+ COMMON_INTERCEPTOR_WRITE_RANGE(ctx, *p, REAL(strlen)(*p) + 1);
+ }
+ return res;
+}
+
+#define INIT_XDR \
+ COMMON_INTERCEPT_FUNCTION(xdrmem_create); \
+ COMMON_INTERCEPT_FUNCTION(xdrstdio_create); \
+ COMMON_INTERCEPT_FUNCTION(xdr_short); \
+ COMMON_INTERCEPT_FUNCTION(xdr_u_short); \
+ COMMON_INTERCEPT_FUNCTION(xdr_int); \
+ COMMON_INTERCEPT_FUNCTION(xdr_u_int); \
+ COMMON_INTERCEPT_FUNCTION(xdr_long); \
+ COMMON_INTERCEPT_FUNCTION(xdr_u_long); \
+ COMMON_INTERCEPT_FUNCTION(xdr_hyper); \
+ COMMON_INTERCEPT_FUNCTION(xdr_u_hyper); \
+ COMMON_INTERCEPT_FUNCTION(xdr_longlong_t); \
+ COMMON_INTERCEPT_FUNCTION(xdr_u_longlong_t); \
+ COMMON_INTERCEPT_FUNCTION(xdr_int8_t); \
+ COMMON_INTERCEPT_FUNCTION(xdr_uint8_t); \
+ COMMON_INTERCEPT_FUNCTION(xdr_int16_t); \
+ COMMON_INTERCEPT_FUNCTION(xdr_uint16_t); \
+ COMMON_INTERCEPT_FUNCTION(xdr_int32_t); \
+ COMMON_INTERCEPT_FUNCTION(xdr_uint32_t); \
+ COMMON_INTERCEPT_FUNCTION(xdr_int64_t); \
+ COMMON_INTERCEPT_FUNCTION(xdr_uint64_t); \
+ COMMON_INTERCEPT_FUNCTION(xdr_quad_t); \
+ COMMON_INTERCEPT_FUNCTION(xdr_u_quad_t); \
+ COMMON_INTERCEPT_FUNCTION(xdr_bool); \
+ COMMON_INTERCEPT_FUNCTION(xdr_enum); \
+ COMMON_INTERCEPT_FUNCTION(xdr_char); \
+ COMMON_INTERCEPT_FUNCTION(xdr_u_char); \
+ COMMON_INTERCEPT_FUNCTION(xdr_float); \
+ COMMON_INTERCEPT_FUNCTION(xdr_double); \
+ COMMON_INTERCEPT_FUNCTION(xdr_bytes); \
+ COMMON_INTERCEPT_FUNCTION(xdr_string);
+#else
+#define INIT_XDR
+#endif // SANITIZER_INTERCEPT_XDR
+
+#if SANITIZER_INTERCEPT_TSEARCH
+INTERCEPTOR(void *, tsearch, void *key, void **rootp,
+ int (*compar)(const void *, const void *)) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, tsearch, key, rootp, compar);
+ // FIXME: under ASan the call below may write to freed memory and corrupt
+ // its metadata. See
+ // https://github.com/google/sanitizers/issues/321.
+ void *res = REAL(tsearch)(key, rootp, compar);
+ if (res && *(void **)res == key)
+ COMMON_INTERCEPTOR_WRITE_RANGE(ctx, res, sizeof(void *));
+ return res;
+}
+#define INIT_TSEARCH COMMON_INTERCEPT_FUNCTION(tsearch);
+#else
+#define INIT_TSEARCH
+#endif
+
+#if SANITIZER_INTERCEPT_LIBIO_INTERNALS || SANITIZER_INTERCEPT_FOPEN || \
+ SANITIZER_INTERCEPT_OPEN_MEMSTREAM
+void unpoison_file(__sanitizer_FILE *fp) {
+#if SANITIZER_HAS_STRUCT_FILE
+ COMMON_INTERCEPTOR_INITIALIZE_RANGE(fp, sizeof(*fp));
+#if SANITIZER_NETBSD
+ if (fp->_bf._base && fp->_bf._size > 0)
+ COMMON_INTERCEPTOR_INITIALIZE_RANGE(fp->_bf._base,
+ fp->_bf._size);
+#else
+ if (fp->_IO_read_base && fp->_IO_read_base < fp->_IO_read_end)
+ COMMON_INTERCEPTOR_INITIALIZE_RANGE(fp->_IO_read_base,
+ fp->_IO_read_end - fp->_IO_read_base);
+#endif
+#endif // SANITIZER_HAS_STRUCT_FILE
+}
+#endif
+
+#if SANITIZER_INTERCEPT_LIBIO_INTERNALS
+// These guys are called when a .c source is built with -O2.
+INTERCEPTOR(int, __uflow, __sanitizer_FILE *fp) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, __uflow, fp);
+ int res = REAL(__uflow)(fp);
+ unpoison_file(fp);
+ return res;
+}
+INTERCEPTOR(int, __underflow, __sanitizer_FILE *fp) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, __underflow, fp);
+ int res = REAL(__underflow)(fp);
+ unpoison_file(fp);
+ return res;
+}
+INTERCEPTOR(int, __overflow, __sanitizer_FILE *fp, int ch) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, __overflow, fp, ch);
+ int res = REAL(__overflow)(fp, ch);
+ unpoison_file(fp);
+ return res;
+}
+INTERCEPTOR(int, __wuflow, __sanitizer_FILE *fp) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, __wuflow, fp);
+ int res = REAL(__wuflow)(fp);
+ unpoison_file(fp);
+ return res;
+}
+INTERCEPTOR(int, __wunderflow, __sanitizer_FILE *fp) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, __wunderflow, fp);
+ int res = REAL(__wunderflow)(fp);
+ unpoison_file(fp);
+ return res;
+}
+INTERCEPTOR(int, __woverflow, __sanitizer_FILE *fp, int ch) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, __woverflow, fp, ch);
+ int res = REAL(__woverflow)(fp, ch);
+ unpoison_file(fp);
+ return res;
+}
+#define INIT_LIBIO_INTERNALS \
+ COMMON_INTERCEPT_FUNCTION(__uflow); \
+ COMMON_INTERCEPT_FUNCTION(__underflow); \
+ COMMON_INTERCEPT_FUNCTION(__overflow); \
+ COMMON_INTERCEPT_FUNCTION(__wuflow); \
+ COMMON_INTERCEPT_FUNCTION(__wunderflow); \
+ COMMON_INTERCEPT_FUNCTION(__woverflow);
+#else
+#define INIT_LIBIO_INTERNALS
+#endif
+
+#if SANITIZER_INTERCEPT_FOPEN
+INTERCEPTOR(__sanitizer_FILE *, fopen, const char *path, const char *mode) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, fopen, path, mode);
+ if (path) COMMON_INTERCEPTOR_READ_RANGE(ctx, path, REAL(strlen)(path) + 1);
+ COMMON_INTERCEPTOR_READ_RANGE(ctx, mode, REAL(strlen)(mode) + 1);
+ __sanitizer_FILE *res = REAL(fopen)(path, mode);
+ COMMON_INTERCEPTOR_FILE_OPEN(ctx, res, path);
+ if (res) unpoison_file(res);
+ return res;
+}
+INTERCEPTOR(__sanitizer_FILE *, fdopen, int fd, const char *mode) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, fdopen, fd, mode);
+ COMMON_INTERCEPTOR_READ_RANGE(ctx, mode, REAL(strlen)(mode) + 1);
+ __sanitizer_FILE *res = REAL(fdopen)(fd, mode);
+ if (res) unpoison_file(res);
+ return res;
+}
+INTERCEPTOR(__sanitizer_FILE *, freopen, const char *path, const char *mode,
+ __sanitizer_FILE *fp) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, freopen, path, mode, fp);
+ if (path) COMMON_INTERCEPTOR_READ_RANGE(ctx, path, REAL(strlen)(path) + 1);
+ COMMON_INTERCEPTOR_READ_RANGE(ctx, mode, REAL(strlen)(mode) + 1);
+ COMMON_INTERCEPTOR_FILE_CLOSE(ctx, fp);
+ __sanitizer_FILE *res = REAL(freopen)(path, mode, fp);
+ COMMON_INTERCEPTOR_FILE_OPEN(ctx, res, path);
+ if (res) unpoison_file(res);
+ return res;
+}
+#define INIT_FOPEN \
+ COMMON_INTERCEPT_FUNCTION(fopen); \
+ COMMON_INTERCEPT_FUNCTION(fdopen); \
+ COMMON_INTERCEPT_FUNCTION(freopen);
+#else
+#define INIT_FOPEN
+#endif
+
+#if SANITIZER_INTERCEPT_FOPEN64
+INTERCEPTOR(__sanitizer_FILE *, fopen64, const char *path, const char *mode) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, fopen64, path, mode);
+ COMMON_INTERCEPTOR_READ_RANGE(ctx, path, REAL(strlen)(path) + 1);
+ COMMON_INTERCEPTOR_READ_RANGE(ctx, mode, REAL(strlen)(mode) + 1);
+ __sanitizer_FILE *res = REAL(fopen64)(path, mode);
+ COMMON_INTERCEPTOR_FILE_OPEN(ctx, res, path);
+ if (res) unpoison_file(res);
+ return res;
+}
+INTERCEPTOR(__sanitizer_FILE *, freopen64, const char *path, const char *mode,
+ __sanitizer_FILE *fp) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, freopen64, path, mode, fp);
+ if (path) COMMON_INTERCEPTOR_READ_RANGE(ctx, path, REAL(strlen)(path) + 1);
+ COMMON_INTERCEPTOR_READ_RANGE(ctx, mode, REAL(strlen)(mode) + 1);
+ COMMON_INTERCEPTOR_FILE_CLOSE(ctx, fp);
+ __sanitizer_FILE *res = REAL(freopen64)(path, mode, fp);
+ COMMON_INTERCEPTOR_FILE_OPEN(ctx, res, path);
+ if (res) unpoison_file(res);
+ return res;
+}
+#define INIT_FOPEN64 \
+ COMMON_INTERCEPT_FUNCTION(fopen64); \
+ COMMON_INTERCEPT_FUNCTION(freopen64);
+#else
+#define INIT_FOPEN64
+#endif
+
+#if SANITIZER_INTERCEPT_OPEN_MEMSTREAM
+INTERCEPTOR(__sanitizer_FILE *, open_memstream, char **ptr, SIZE_T *sizeloc) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, open_memstream, ptr, sizeloc);
+ // FIXME: under ASan the call below may write to freed memory and corrupt
+ // its metadata. See
+ // https://github.com/google/sanitizers/issues/321.
+ __sanitizer_FILE *res = REAL(open_memstream)(ptr, sizeloc);
+ if (res) {
+ COMMON_INTERCEPTOR_WRITE_RANGE(ctx, ptr, sizeof(*ptr));
+ COMMON_INTERCEPTOR_WRITE_RANGE(ctx, sizeloc, sizeof(*sizeloc));
+ unpoison_file(res);
+ FileMetadata file = {ptr, sizeloc};
+ SetInterceptorMetadata(res, file);
+ }
+ return res;
+}
+INTERCEPTOR(__sanitizer_FILE *, open_wmemstream, wchar_t **ptr,
+ SIZE_T *sizeloc) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, open_wmemstream, ptr, sizeloc);
+ __sanitizer_FILE *res = REAL(open_wmemstream)(ptr, sizeloc);
+ if (res) {
+ COMMON_INTERCEPTOR_WRITE_RANGE(ctx, ptr, sizeof(*ptr));
+ COMMON_INTERCEPTOR_WRITE_RANGE(ctx, sizeloc, sizeof(*sizeloc));
+ unpoison_file(res);
+ FileMetadata file = {(char **)ptr, sizeloc};
+ SetInterceptorMetadata(res, file);
+ }
+ return res;
+}
+INTERCEPTOR(__sanitizer_FILE *, fmemopen, void *buf, SIZE_T size,
+ const char *mode) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, fmemopen, buf, size, mode);
+ // FIXME: under ASan the call below may write to freed memory and corrupt
+ // its metadata. See
+ // https://github.com/google/sanitizers/issues/321.
+ __sanitizer_FILE *res = REAL(fmemopen)(buf, size, mode);
+ if (res) unpoison_file(res);
+ return res;
+}
+#define INIT_OPEN_MEMSTREAM \
+ COMMON_INTERCEPT_FUNCTION(open_memstream); \
+ COMMON_INTERCEPT_FUNCTION(open_wmemstream); \
+ COMMON_INTERCEPT_FUNCTION(fmemopen);
+#else
+#define INIT_OPEN_MEMSTREAM
+#endif
+
+#if SANITIZER_INTERCEPT_OBSTACK
+static void initialize_obstack(__sanitizer_obstack *obstack) {
+ COMMON_INTERCEPTOR_INITIALIZE_RANGE(obstack, sizeof(*obstack));
+ if (obstack->chunk)
+ COMMON_INTERCEPTOR_INITIALIZE_RANGE(obstack->chunk,
+ sizeof(*obstack->chunk));
+}
+
+INTERCEPTOR(int, _obstack_begin_1, __sanitizer_obstack *obstack, int sz,
+ int align, void *(*alloc_fn)(uptr arg, uptr sz),
+ void (*free_fn)(uptr arg, void *p)) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, _obstack_begin_1, obstack, sz, align, alloc_fn,
+ free_fn);
+ int res = REAL(_obstack_begin_1)(obstack, sz, align, alloc_fn, free_fn);
+ if (res) initialize_obstack(obstack);
+ return res;
+}
+INTERCEPTOR(int, _obstack_begin, __sanitizer_obstack *obstack, int sz,
+ int align, void *(*alloc_fn)(uptr sz), void (*free_fn)(void *p)) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, _obstack_begin, obstack, sz, align, alloc_fn,
+ free_fn);
+ int res = REAL(_obstack_begin)(obstack, sz, align, alloc_fn, free_fn);
+ if (res) initialize_obstack(obstack);
+ return res;
+}
+INTERCEPTOR(void, _obstack_newchunk, __sanitizer_obstack *obstack, int length) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, _obstack_newchunk, obstack, length);
+ REAL(_obstack_newchunk)(obstack, length);
+ if (obstack->chunk)
+ COMMON_INTERCEPTOR_INITIALIZE_RANGE(
+ obstack->chunk, obstack->next_free - (char *)obstack->chunk);
+}
+#define INIT_OBSTACK \
+ COMMON_INTERCEPT_FUNCTION(_obstack_begin_1); \
+ COMMON_INTERCEPT_FUNCTION(_obstack_begin); \
+ COMMON_INTERCEPT_FUNCTION(_obstack_newchunk);
+#else
+#define INIT_OBSTACK
+#endif
+
+#if SANITIZER_INTERCEPT_FFLUSH
+INTERCEPTOR(int, fflush, __sanitizer_FILE *fp) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, fflush, fp);
+ int res = REAL(fflush)(fp);
+ // FIXME: handle fp == NULL
+ if (fp) {
+ const FileMetadata *m = GetInterceptorMetadata(fp);
+ if (m) COMMON_INTERCEPTOR_INITIALIZE_RANGE(*m->addr, *m->size);
+ }
+ return res;
+}
+#define INIT_FFLUSH COMMON_INTERCEPT_FUNCTION(fflush);
+#else
+#define INIT_FFLUSH
+#endif
+
+#if SANITIZER_INTERCEPT_FCLOSE
+INTERCEPTOR(int, fclose, __sanitizer_FILE *fp) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, fclose, fp);
+ COMMON_INTERCEPTOR_FILE_CLOSE(ctx, fp);
+ const FileMetadata *m = GetInterceptorMetadata(fp);
+ int res = REAL(fclose)(fp);
+ if (m) {
+ COMMON_INTERCEPTOR_INITIALIZE_RANGE(*m->addr, *m->size);
+ DeleteInterceptorMetadata(fp);
+ }
+ return res;
+}
+#define INIT_FCLOSE COMMON_INTERCEPT_FUNCTION(fclose);
+#else
+#define INIT_FCLOSE
+#endif
+
+#if SANITIZER_INTERCEPT_DLOPEN_DLCLOSE
+INTERCEPTOR(void*, dlopen, const char *filename, int flag) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER_NOIGNORE(ctx, dlopen, filename, flag);
+ if (filename) COMMON_INTERCEPTOR_READ_STRING(ctx, filename, 0);
+ COMMON_INTERCEPTOR_ON_DLOPEN(filename, flag);
+ void *res = REAL(dlopen)(filename, flag);
+ Symbolizer::GetOrInit()->InvalidateModuleList();
+ COMMON_INTERCEPTOR_LIBRARY_LOADED(filename, res);
+ return res;
+}
+
+INTERCEPTOR(int, dlclose, void *handle) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER_NOIGNORE(ctx, dlclose, handle);
+ int res = REAL(dlclose)(handle);
+ Symbolizer::GetOrInit()->InvalidateModuleList();
+ COMMON_INTERCEPTOR_LIBRARY_UNLOADED();
+ return res;
+}
+#define INIT_DLOPEN_DLCLOSE \
+ COMMON_INTERCEPT_FUNCTION(dlopen); \
+ COMMON_INTERCEPT_FUNCTION(dlclose);
+#else
+#define INIT_DLOPEN_DLCLOSE
+#endif
+
+#if SANITIZER_INTERCEPT_GETPASS
+INTERCEPTOR(char *, getpass, const char *prompt) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, getpass, prompt);
+ if (prompt)
+ COMMON_INTERCEPTOR_READ_RANGE(ctx, prompt, REAL(strlen)(prompt)+1);
+ char *res = REAL(getpass)(prompt);
+ if (res) COMMON_INTERCEPTOR_INITIALIZE_RANGE(res, REAL(strlen)(res)+1);
+ return res;
+}
+
+#define INIT_GETPASS COMMON_INTERCEPT_FUNCTION(getpass);
+#else
+#define INIT_GETPASS
+#endif
+
+#if SANITIZER_INTERCEPT_TIMERFD
+INTERCEPTOR(int, timerfd_settime, int fd, int flags, void *new_value,
+ void *old_value) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, timerfd_settime, fd, flags, new_value,
+ old_value);
+ COMMON_INTERCEPTOR_READ_RANGE(ctx, new_value, struct_itimerspec_sz);
+ int res = REAL(timerfd_settime)(fd, flags, new_value, old_value);
+ if (res != -1 && old_value)
+ COMMON_INTERCEPTOR_WRITE_RANGE(ctx, old_value, struct_itimerspec_sz);
+ return res;
+}
+
+INTERCEPTOR(int, timerfd_gettime, int fd, void *curr_value) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, timerfd_gettime, fd, curr_value);
+ int res = REAL(timerfd_gettime)(fd, curr_value);
+ if (res != -1 && curr_value)
+ COMMON_INTERCEPTOR_WRITE_RANGE(ctx, curr_value, struct_itimerspec_sz);
+ return res;
+}
+#define INIT_TIMERFD \
+ COMMON_INTERCEPT_FUNCTION(timerfd_settime); \
+ COMMON_INTERCEPT_FUNCTION(timerfd_gettime);
+#else
+#define INIT_TIMERFD
+#endif
+
+#if SANITIZER_INTERCEPT_MLOCKX
+// Linux kernel has a bug that leads to kernel deadlock if a process
+// maps TBs of memory and then calls mlock().
+static void MlockIsUnsupported() {
+ static atomic_uint8_t printed;
+ if (atomic_exchange(&printed, 1, memory_order_relaxed))
+ return;
+ VPrintf(1, "%s ignores mlock/mlockall/munlock/munlockall\n",
+ SanitizerToolName);
+}
+
+INTERCEPTOR(int, mlock, const void *addr, uptr len) {
+ MlockIsUnsupported();
+ return 0;
+}
+
+INTERCEPTOR(int, munlock, const void *addr, uptr len) {
+ MlockIsUnsupported();
+ return 0;
+}
+
+INTERCEPTOR(int, mlockall, int flags) {
+ MlockIsUnsupported();
+ return 0;
+}
+
+INTERCEPTOR(int, munlockall, void) {
+ MlockIsUnsupported();
+ return 0;
+}
+
+#define INIT_MLOCKX \
+ COMMON_INTERCEPT_FUNCTION(mlock); \
+ COMMON_INTERCEPT_FUNCTION(munlock); \
+ COMMON_INTERCEPT_FUNCTION(mlockall); \
+ COMMON_INTERCEPT_FUNCTION(munlockall);
+
+#else
+#define INIT_MLOCKX
+#endif // SANITIZER_INTERCEPT_MLOCKX
+
+#if SANITIZER_INTERCEPT_FOPENCOOKIE
+struct WrappedCookie {
+ void *real_cookie;
+ __sanitizer_cookie_io_functions_t real_io_funcs;
+};
+
+static uptr wrapped_read(void *cookie, char *buf, uptr size) {
+ COMMON_INTERCEPTOR_UNPOISON_PARAM(3);
+ WrappedCookie *wrapped_cookie = (WrappedCookie *)cookie;
+ __sanitizer_cookie_io_read real_read = wrapped_cookie->real_io_funcs.read;
+ return real_read ? real_read(wrapped_cookie->real_cookie, buf, size) : 0;
+}
+
+static uptr wrapped_write(void *cookie, const char *buf, uptr size) {
+ COMMON_INTERCEPTOR_UNPOISON_PARAM(3);
+ WrappedCookie *wrapped_cookie = (WrappedCookie *)cookie;
+ __sanitizer_cookie_io_write real_write = wrapped_cookie->real_io_funcs.write;
+ return real_write ? real_write(wrapped_cookie->real_cookie, buf, size) : size;
+}
+
+static int wrapped_seek(void *cookie, u64 *offset, int whence) {
+ COMMON_INTERCEPTOR_UNPOISON_PARAM(3);
+ COMMON_INTERCEPTOR_INITIALIZE_RANGE(offset, sizeof(*offset));
+ WrappedCookie *wrapped_cookie = (WrappedCookie *)cookie;
+ __sanitizer_cookie_io_seek real_seek = wrapped_cookie->real_io_funcs.seek;
+ return real_seek ? real_seek(wrapped_cookie->real_cookie, offset, whence)
+ : -1;
+}
+
+static int wrapped_close(void *cookie) {
+ COMMON_INTERCEPTOR_UNPOISON_PARAM(1);
+ WrappedCookie *wrapped_cookie = (WrappedCookie *)cookie;
+ __sanitizer_cookie_io_close real_close = wrapped_cookie->real_io_funcs.close;
+ int res = real_close ? real_close(wrapped_cookie->real_cookie) : 0;
+ InternalFree(wrapped_cookie);
+ return res;
+}
+
+INTERCEPTOR(__sanitizer_FILE *, fopencookie, void *cookie, const char *mode,
+ __sanitizer_cookie_io_functions_t io_funcs) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, fopencookie, cookie, mode, io_funcs);
+ WrappedCookie *wrapped_cookie =
+ (WrappedCookie *)InternalAlloc(sizeof(WrappedCookie));
+ wrapped_cookie->real_cookie = cookie;
+ wrapped_cookie->real_io_funcs = io_funcs;
+ __sanitizer_FILE *res =
+ REAL(fopencookie)(wrapped_cookie, mode, {wrapped_read, wrapped_write,
+ wrapped_seek, wrapped_close});
+ return res;
+}
+
+#define INIT_FOPENCOOKIE COMMON_INTERCEPT_FUNCTION(fopencookie);
+#else
+#define INIT_FOPENCOOKIE
+#endif // SANITIZER_INTERCEPT_FOPENCOOKIE
+
+#if SANITIZER_INTERCEPT_SEM
+INTERCEPTOR(int, sem_init, __sanitizer_sem_t *s, int pshared, unsigned value) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, sem_init, s, pshared, value);
+ // Workaround a bug in glibc's "old" semaphore implementation by
+ // zero-initializing the sem_t contents. This has to be done here because
+ // interceptors bind to the lowest symbols version by default, hitting the
+ // buggy code path while the non-sanitized build of the same code works fine.
+ REAL(memset)(s, 0, sizeof(*s));
+ int res = REAL(sem_init)(s, pshared, value);
+ return res;
+}
+
+INTERCEPTOR(int, sem_destroy, __sanitizer_sem_t *s) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, sem_destroy, s);
+ int res = REAL(sem_destroy)(s);
+ return res;
+}
+
+INTERCEPTOR(int, sem_wait, __sanitizer_sem_t *s) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, sem_wait, s);
+ int res = COMMON_INTERCEPTOR_BLOCK_REAL(sem_wait)(s);
+ if (res == 0) {
+ COMMON_INTERCEPTOR_ACQUIRE(ctx, (uptr)s);
+ }
+ return res;
+}
+
+INTERCEPTOR(int, sem_trywait, __sanitizer_sem_t *s) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, sem_trywait, s);
+ int res = COMMON_INTERCEPTOR_BLOCK_REAL(sem_trywait)(s);
+ if (res == 0) {
+ COMMON_INTERCEPTOR_ACQUIRE(ctx, (uptr)s);
+ }
+ return res;
+}
+
+INTERCEPTOR(int, sem_timedwait, __sanitizer_sem_t *s, void *abstime) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, sem_timedwait, s, abstime);
+ COMMON_INTERCEPTOR_READ_RANGE(ctx, abstime, struct_timespec_sz);
+ int res = COMMON_INTERCEPTOR_BLOCK_REAL(sem_timedwait)(s, abstime);
+ if (res == 0) {
+ COMMON_INTERCEPTOR_ACQUIRE(ctx, (uptr)s);
+ }
+ return res;
+}
+
+INTERCEPTOR(int, sem_post, __sanitizer_sem_t *s) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, sem_post, s);
+ COMMON_INTERCEPTOR_RELEASE(ctx, (uptr)s);
+ int res = REAL(sem_post)(s);
+ return res;
+}
+
+INTERCEPTOR(int, sem_getvalue, __sanitizer_sem_t *s, int *sval) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, sem_getvalue, s, sval);
+ int res = REAL(sem_getvalue)(s, sval);
+ if (res == 0) {
+ COMMON_INTERCEPTOR_ACQUIRE(ctx, (uptr)s);
+ COMMON_INTERCEPTOR_WRITE_RANGE(ctx, sval, sizeof(*sval));
+ }
+ return res;
+}
+#define INIT_SEM \
+ COMMON_INTERCEPT_FUNCTION(sem_init); \
+ COMMON_INTERCEPT_FUNCTION(sem_destroy); \
+ COMMON_INTERCEPT_FUNCTION(sem_wait); \
+ COMMON_INTERCEPT_FUNCTION(sem_trywait); \
+ COMMON_INTERCEPT_FUNCTION(sem_timedwait); \
+ COMMON_INTERCEPT_FUNCTION(sem_post); \
+ COMMON_INTERCEPT_FUNCTION(sem_getvalue);
+#else
+#define INIT_SEM
+#endif // SANITIZER_INTERCEPT_SEM
+
+#if SANITIZER_INTERCEPT_PTHREAD_SETCANCEL
+INTERCEPTOR(int, pthread_setcancelstate, int state, int *oldstate) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, pthread_setcancelstate, state, oldstate);
+ int res = REAL(pthread_setcancelstate)(state, oldstate);
+ if (res == 0 && oldstate != nullptr)
+ COMMON_INTERCEPTOR_WRITE_RANGE(ctx, oldstate, sizeof(*oldstate));
+ return res;
+}
+
+INTERCEPTOR(int, pthread_setcanceltype, int type, int *oldtype) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, pthread_setcanceltype, type, oldtype);
+ int res = REAL(pthread_setcanceltype)(type, oldtype);
+ if (res == 0 && oldtype != nullptr)
+ COMMON_INTERCEPTOR_WRITE_RANGE(ctx, oldtype, sizeof(*oldtype));
+ return res;
+}
+#define INIT_PTHREAD_SETCANCEL \
+ COMMON_INTERCEPT_FUNCTION(pthread_setcancelstate); \
+ COMMON_INTERCEPT_FUNCTION(pthread_setcanceltype);
+#else
+#define INIT_PTHREAD_SETCANCEL
+#endif
+
+#if SANITIZER_INTERCEPT_MINCORE
+INTERCEPTOR(int, mincore, void *addr, uptr length, unsigned char *vec) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, mincore, addr, length, vec);
+ int res = REAL(mincore)(addr, length, vec);
+ if (res == 0) {
+ uptr page_size = GetPageSizeCached();
+ uptr vec_size = ((length + page_size - 1) & (~(page_size - 1))) / page_size;
+ COMMON_INTERCEPTOR_WRITE_RANGE(ctx, vec, vec_size);
+ }
+ return res;
+}
+#define INIT_MINCORE COMMON_INTERCEPT_FUNCTION(mincore);
+#else
+#define INIT_MINCORE
+#endif
+
+#if SANITIZER_INTERCEPT_PROCESS_VM_READV
+INTERCEPTOR(SSIZE_T, process_vm_readv, int pid, __sanitizer_iovec *local_iov,
+ uptr liovcnt, __sanitizer_iovec *remote_iov, uptr riovcnt,
+ uptr flags) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, process_vm_readv, pid, local_iov, liovcnt,
+ remote_iov, riovcnt, flags);
+ SSIZE_T res = REAL(process_vm_readv)(pid, local_iov, liovcnt, remote_iov,
+ riovcnt, flags);
+ if (res > 0)
+ write_iovec(ctx, local_iov, liovcnt, res);
+ return res;
+}
+
+INTERCEPTOR(SSIZE_T, process_vm_writev, int pid, __sanitizer_iovec *local_iov,
+ uptr liovcnt, __sanitizer_iovec *remote_iov, uptr riovcnt,
+ uptr flags) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, process_vm_writev, pid, local_iov, liovcnt,
+ remote_iov, riovcnt, flags);
+ SSIZE_T res = REAL(process_vm_writev)(pid, local_iov, liovcnt, remote_iov,
+ riovcnt, flags);
+ if (res > 0)
+ read_iovec(ctx, local_iov, liovcnt, res);
+ return res;
+}
+#define INIT_PROCESS_VM_READV \
+ COMMON_INTERCEPT_FUNCTION(process_vm_readv); \
+ COMMON_INTERCEPT_FUNCTION(process_vm_writev);
+#else
+#define INIT_PROCESS_VM_READV
+#endif
+
+#if SANITIZER_INTERCEPT_CTERMID
+INTERCEPTOR(char *, ctermid, char *s) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, ctermid, s);
+ char *res = REAL(ctermid)(s);
+ if (res) {
+ COMMON_INTERCEPTOR_INITIALIZE_RANGE(res, REAL(strlen)(res) + 1);
+ }
+ return res;
+}
+#define INIT_CTERMID COMMON_INTERCEPT_FUNCTION(ctermid);
+#else
+#define INIT_CTERMID
+#endif
+
+#if SANITIZER_INTERCEPT_CTERMID_R
+INTERCEPTOR(char *, ctermid_r, char *s) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, ctermid_r, s);
+ char *res = REAL(ctermid_r)(s);
+ if (res) {
+ COMMON_INTERCEPTOR_INITIALIZE_RANGE(res, REAL(strlen)(res) + 1);
+ }
+ return res;
+}
+#define INIT_CTERMID_R COMMON_INTERCEPT_FUNCTION(ctermid_r);
+#else
+#define INIT_CTERMID_R
+#endif
+
+#if SANITIZER_INTERCEPT_RECV_RECVFROM
+INTERCEPTOR(SSIZE_T, recv, int fd, void *buf, SIZE_T len, int flags) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, recv, fd, buf, len, flags);
+ COMMON_INTERCEPTOR_FD_ACCESS(ctx, fd);
+ SSIZE_T res = REAL(recv)(fd, buf, len, flags);
+ if (res > 0) {
+ COMMON_INTERCEPTOR_WRITE_RANGE(ctx, buf, Min((SIZE_T)res, len));
+ }
+ if (res >= 0 && fd >= 0) COMMON_INTERCEPTOR_FD_ACQUIRE(ctx, fd);
+ return res;
+}
+
+INTERCEPTOR(SSIZE_T, recvfrom, int fd, void *buf, SIZE_T len, int flags,
+ void *srcaddr, int *addrlen) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, recvfrom, fd, buf, len, flags, srcaddr,
+ addrlen);
+ COMMON_INTERCEPTOR_FD_ACCESS(ctx, fd);
+ SIZE_T srcaddr_sz;
+ if (srcaddr) srcaddr_sz = *addrlen;
+ (void)srcaddr_sz; // prevent "set but not used" warning
+ SSIZE_T res = REAL(recvfrom)(fd, buf, len, flags, srcaddr, addrlen);
+ if (res > 0) {
+ COMMON_INTERCEPTOR_WRITE_RANGE(ctx, buf, Min((SIZE_T)res, len));
+ if (srcaddr)
+ COMMON_INTERCEPTOR_INITIALIZE_RANGE(srcaddr,
+ Min((SIZE_T)*addrlen, srcaddr_sz));
+ }
+ return res;
+}
+#define INIT_RECV_RECVFROM \
+ COMMON_INTERCEPT_FUNCTION(recv); \
+ COMMON_INTERCEPT_FUNCTION(recvfrom);
+#else
+#define INIT_RECV_RECVFROM
+#endif
+
+#if SANITIZER_INTERCEPT_SEND_SENDTO
+INTERCEPTOR(SSIZE_T, send, int fd, void *buf, SIZE_T len, int flags) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, send, fd, buf, len, flags);
+ if (fd >= 0) {
+ COMMON_INTERCEPTOR_FD_ACCESS(ctx, fd);
+ COMMON_INTERCEPTOR_FD_RELEASE(ctx, fd);
+ }
+ SSIZE_T res = REAL(send)(fd, buf, len, flags);
+ if (common_flags()->intercept_send && res > 0)
+ COMMON_INTERCEPTOR_READ_RANGE(ctx, buf, Min((SIZE_T)res, len));
+ return res;
+}
+
+INTERCEPTOR(SSIZE_T, sendto, int fd, void *buf, SIZE_T len, int flags,
+ void *dstaddr, int addrlen) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, sendto, fd, buf, len, flags, dstaddr, addrlen);
+ if (fd >= 0) {
+ COMMON_INTERCEPTOR_FD_ACCESS(ctx, fd);
+ COMMON_INTERCEPTOR_FD_RELEASE(ctx, fd);
+ }
+ // Can't check dstaddr as it may have uninitialized padding at the end.
+ SSIZE_T res = REAL(sendto)(fd, buf, len, flags, dstaddr, addrlen);
+ if (common_flags()->intercept_send && res > 0)
+ COMMON_INTERCEPTOR_READ_RANGE(ctx, buf, Min((SIZE_T)res, len));
+ return res;
+}
+#define INIT_SEND_SENDTO \
+ COMMON_INTERCEPT_FUNCTION(send); \
+ COMMON_INTERCEPT_FUNCTION(sendto);
+#else
+#define INIT_SEND_SENDTO
+#endif
+
+#if SANITIZER_INTERCEPT_EVENTFD_READ_WRITE
+INTERCEPTOR(int, eventfd_read, int fd, u64 *value) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, eventfd_read, fd, value);
+ COMMON_INTERCEPTOR_FD_ACCESS(ctx, fd);
+ int res = REAL(eventfd_read)(fd, value);
+ if (res == 0) {
+ COMMON_INTERCEPTOR_WRITE_RANGE(ctx, value, sizeof(*value));
+ if (fd >= 0) COMMON_INTERCEPTOR_FD_ACQUIRE(ctx, fd);
+ }
+ return res;
+}
+INTERCEPTOR(int, eventfd_write, int fd, u64 value) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, eventfd_write, fd, value);
+ if (fd >= 0) {
+ COMMON_INTERCEPTOR_FD_ACCESS(ctx, fd);
+ COMMON_INTERCEPTOR_FD_RELEASE(ctx, fd);
+ }
+ int res = REAL(eventfd_write)(fd, value);
+ return res;
+}
+#define INIT_EVENTFD_READ_WRITE \
+ COMMON_INTERCEPT_FUNCTION(eventfd_read); \
+ COMMON_INTERCEPT_FUNCTION(eventfd_write)
+#else
+#define INIT_EVENTFD_READ_WRITE
+#endif
+
+#if SANITIZER_INTERCEPT_STAT
+INTERCEPTOR(int, stat, const char *path, void *buf) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, stat, path, buf);
+ if (common_flags()->intercept_stat)
+ COMMON_INTERCEPTOR_READ_STRING(ctx, path, 0);
+ int res = REAL(stat)(path, buf);
+ if (!res)
+ COMMON_INTERCEPTOR_WRITE_RANGE(ctx, buf, __sanitizer::struct_stat_sz);
+ return res;
+}
+#define INIT_STAT COMMON_INTERCEPT_FUNCTION(stat)
+#else
+#define INIT_STAT
+#endif
+
+#if SANITIZER_INTERCEPT_LSTAT
+INTERCEPTOR(int, lstat, const char *path, void *buf) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, lstat, path, buf);
+ if (common_flags()->intercept_stat)
+ COMMON_INTERCEPTOR_READ_STRING(ctx, path, 0);
+ int res = REAL(lstat)(path, buf);
+ if (!res)
+ COMMON_INTERCEPTOR_WRITE_RANGE(ctx, buf, __sanitizer::struct_stat_sz);
+ return res;
+}
+#define INIT_LSTAT COMMON_INTERCEPT_FUNCTION(lstat)
+#else
+#define INIT_LSTAT
+#endif
+
+#if SANITIZER_INTERCEPT___XSTAT
+INTERCEPTOR(int, __xstat, int version, const char *path, void *buf) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, __xstat, version, path, buf);
+ if (common_flags()->intercept_stat)
+ COMMON_INTERCEPTOR_READ_STRING(ctx, path, 0);
+ int res = REAL(__xstat)(version, path, buf);
+ if (!res)
+ COMMON_INTERCEPTOR_WRITE_RANGE(ctx, buf, __sanitizer::struct_stat_sz);
+ return res;
+}
+#define INIT___XSTAT COMMON_INTERCEPT_FUNCTION(__xstat)
+#else
+#define INIT___XSTAT
+#endif
+
+#if SANITIZER_INTERCEPT___XSTAT64
+INTERCEPTOR(int, __xstat64, int version, const char *path, void *buf) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, __xstat64, version, path, buf);
+ if (common_flags()->intercept_stat)
+ COMMON_INTERCEPTOR_READ_STRING(ctx, path, 0);
+ int res = REAL(__xstat64)(version, path, buf);
+ if (!res)
+ COMMON_INTERCEPTOR_WRITE_RANGE(ctx, buf, __sanitizer::struct_stat64_sz);
+ return res;
+}
+#define INIT___XSTAT64 COMMON_INTERCEPT_FUNCTION(__xstat64)
+#else
+#define INIT___XSTAT64
+#endif
+
+#if SANITIZER_INTERCEPT___LXSTAT
+INTERCEPTOR(int, __lxstat, int version, const char *path, void *buf) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, __lxstat, version, path, buf);
+ if (common_flags()->intercept_stat)
+ COMMON_INTERCEPTOR_READ_STRING(ctx, path, 0);
+ int res = REAL(__lxstat)(version, path, buf);
+ if (!res)
+ COMMON_INTERCEPTOR_WRITE_RANGE(ctx, buf, __sanitizer::struct_stat_sz);
+ return res;
+}
+#define INIT___LXSTAT COMMON_INTERCEPT_FUNCTION(__lxstat)
+#else
+#define INIT___LXSTAT
+#endif
+
+#if SANITIZER_INTERCEPT___LXSTAT64
+INTERCEPTOR(int, __lxstat64, int version, const char *path, void *buf) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, __lxstat64, version, path, buf);
+ if (common_flags()->intercept_stat)
+ COMMON_INTERCEPTOR_READ_STRING(ctx, path, 0);
+ int res = REAL(__lxstat64)(version, path, buf);
+ if (!res)
+ COMMON_INTERCEPTOR_WRITE_RANGE(ctx, buf, __sanitizer::struct_stat64_sz);
+ return res;
+}
+#define INIT___LXSTAT64 COMMON_INTERCEPT_FUNCTION(__lxstat64)
+#else
+#define INIT___LXSTAT64
+#endif
+
+// FIXME: add other *stat interceptor
+
+#if SANITIZER_INTERCEPT_UTMP
+INTERCEPTOR(void *, getutent, int dummy) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, getutent, dummy);
+ void *res = REAL(getutent)(dummy);
+ if (res)
+ COMMON_INTERCEPTOR_INITIALIZE_RANGE(res, __sanitizer::struct_utmp_sz);
+ return res;
+}
+INTERCEPTOR(void *, getutid, void *ut) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, getutid, ut);
+ void *res = REAL(getutid)(ut);
+ if (res)
+ COMMON_INTERCEPTOR_INITIALIZE_RANGE(res, __sanitizer::struct_utmp_sz);
+ return res;
+}
+INTERCEPTOR(void *, getutline, void *ut) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, getutline, ut);
+ void *res = REAL(getutline)(ut);
+ if (res)
+ COMMON_INTERCEPTOR_INITIALIZE_RANGE(res, __sanitizer::struct_utmp_sz);
+ return res;
+}
+#define INIT_UTMP \
+ COMMON_INTERCEPT_FUNCTION(getutent); \
+ COMMON_INTERCEPT_FUNCTION(getutid); \
+ COMMON_INTERCEPT_FUNCTION(getutline);
+#else
+#define INIT_UTMP
+#endif
+
+#if SANITIZER_INTERCEPT_UTMPX
+INTERCEPTOR(void *, getutxent, int dummy) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, getutxent, dummy);
+ void *res = REAL(getutxent)(dummy);
+ if (res)
+ COMMON_INTERCEPTOR_INITIALIZE_RANGE(res, __sanitizer::struct_utmpx_sz);
+ return res;
+}
+INTERCEPTOR(void *, getutxid, void *ut) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, getutxid, ut);
+ void *res = REAL(getutxid)(ut);
+ if (res)
+ COMMON_INTERCEPTOR_INITIALIZE_RANGE(res, __sanitizer::struct_utmpx_sz);
+ return res;
+}
+INTERCEPTOR(void *, getutxline, void *ut) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, getutxline, ut);
+ void *res = REAL(getutxline)(ut);
+ if (res)
+ COMMON_INTERCEPTOR_INITIALIZE_RANGE(res, __sanitizer::struct_utmpx_sz);
+ return res;
+}
+INTERCEPTOR(void *, pututxline, const void *ut) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, pututxline, ut);
+ if (ut)
+ COMMON_INTERCEPTOR_READ_RANGE(ctx, ut, __sanitizer::struct_utmpx_sz);
+ void *res = REAL(pututxline)(ut);
+ if (res)
+ COMMON_INTERCEPTOR_WRITE_RANGE(ctx, res, __sanitizer::struct_utmpx_sz);
+ return res;
+}
+#define INIT_UTMPX \
+ COMMON_INTERCEPT_FUNCTION(getutxent); \
+ COMMON_INTERCEPT_FUNCTION(getutxid); \
+ COMMON_INTERCEPT_FUNCTION(getutxline); \
+ COMMON_INTERCEPT_FUNCTION(pututxline);
+#else
+#define INIT_UTMPX
+#endif
+
+#if SANITIZER_INTERCEPT_GETLOADAVG
+INTERCEPTOR(int, getloadavg, double *loadavg, int nelem) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, getloadavg, loadavg, nelem);
+ int res = REAL(getloadavg)(loadavg, nelem);
+ if (res > 0)
+ COMMON_INTERCEPTOR_WRITE_RANGE(ctx, loadavg, res * sizeof(*loadavg));
+ return res;
+}
+#define INIT_GETLOADAVG \
+ COMMON_INTERCEPT_FUNCTION(getloadavg);
+#else
+#define INIT_GETLOADAVG
+#endif
+
+#if SANITIZER_INTERCEPT_MCHECK_MPROBE
+INTERCEPTOR(int, mcheck, void (*abortfunc)(int mstatus)) {
+ return 0;
+}
+
+INTERCEPTOR(int, mcheck_pedantic, void (*abortfunc)(int mstatus)) {
+ return 0;
+}
+
+INTERCEPTOR(int, mprobe, void *ptr) {
+ return 0;
+}
+#endif
+
+INTERCEPTOR(SIZE_T, wcslen, const wchar_t *s) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, wcslen, s);
+ SIZE_T res = REAL(wcslen)(s);
+ COMMON_INTERCEPTOR_READ_RANGE(ctx, s, sizeof(wchar_t) * (res + 1));
+ return res;
+}
+
+INTERCEPTOR(SIZE_T, wcsnlen, const wchar_t *s, SIZE_T n) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, wcsnlen, s, n);
+ SIZE_T res = REAL(wcsnlen)(s, n);
+ COMMON_INTERCEPTOR_READ_RANGE(ctx, s, sizeof(wchar_t) * Min(res + 1, n));
+ return res;
+}
+#define INIT_WCSLEN \
+ COMMON_INTERCEPT_FUNCTION(wcslen); \
+ COMMON_INTERCEPT_FUNCTION(wcsnlen);
+
+#if SANITIZER_INTERCEPT_WCSCAT
+INTERCEPTOR(wchar_t *, wcscat, wchar_t *dst, const wchar_t *src) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, wcscat, dst, src);
+ SIZE_T src_size = REAL(wcslen)(src);
+ SIZE_T dst_size = REAL(wcslen)(dst);
+ COMMON_INTERCEPTOR_READ_RANGE(ctx, src, (src_size + 1) * sizeof(wchar_t));
+ COMMON_INTERCEPTOR_READ_RANGE(ctx, dst, (dst_size + 1) * sizeof(wchar_t));
+ COMMON_INTERCEPTOR_WRITE_RANGE(ctx, dst + dst_size,
+ (src_size + 1) * sizeof(wchar_t));
+ return REAL(wcscat)(dst, src); // NOLINT
+}
+
+INTERCEPTOR(wchar_t *, wcsncat, wchar_t *dst, const wchar_t *src, SIZE_T n) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, wcsncat, dst, src, n);
+ SIZE_T src_size = REAL(wcsnlen)(src, n);
+ SIZE_T dst_size = REAL(wcslen)(dst);
+ COMMON_INTERCEPTOR_READ_RANGE(ctx, src,
+ Min(src_size + 1, n) * sizeof(wchar_t));
+ COMMON_INTERCEPTOR_READ_RANGE(ctx, dst, (dst_size + 1) * sizeof(wchar_t));
+ COMMON_INTERCEPTOR_WRITE_RANGE(ctx, dst + dst_size,
+ (src_size + 1) * sizeof(wchar_t));
+ return REAL(wcsncat)(dst, src, n); // NOLINT
+}
+#define INIT_WCSCAT \
+ COMMON_INTERCEPT_FUNCTION(wcscat); \
+ COMMON_INTERCEPT_FUNCTION(wcsncat);
+#else
+#define INIT_WCSCAT
+#endif
+
+#if SANITIZER_INTERCEPT_WCSDUP
+INTERCEPTOR(wchar_t *, wcsdup, wchar_t *s) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, wcsdup, s);
+ SIZE_T len = REAL(wcslen)(s);
+ COMMON_INTERCEPTOR_READ_RANGE(ctx, s, sizeof(wchar_t) * (len + 1));
+ wchar_t *result = REAL(wcsdup)(s);
+ if (result)
+ COMMON_INTERCEPTOR_WRITE_RANGE(ctx, result, sizeof(wchar_t) * (len + 1));
+ return result;
+}
+
+#define INIT_WCSDUP COMMON_INTERCEPT_FUNCTION(wcsdup);
+#else
+#define INIT_WCSDUP
+#endif
+
+#if SANITIZER_INTERCEPT_STRXFRM
+static SIZE_T RealStrLen(const char *str) { return REAL(strlen)(str); }
+
+static SIZE_T RealStrLen(const wchar_t *str) { return REAL(wcslen)(str); }
+
+#define STRXFRM_INTERCEPTOR_IMPL(strxfrm, dest, src, len, ...) \
+ { \
+ void *ctx; \
+ COMMON_INTERCEPTOR_ENTER(ctx, strxfrm, dest, src, len, ##__VA_ARGS__); \
+ COMMON_INTERCEPTOR_READ_RANGE(ctx, src, \
+ sizeof(*src) * (RealStrLen(src) + 1)); \
+ SIZE_T res = REAL(strxfrm)(dest, src, len, ##__VA_ARGS__); \
+ if (res < len) \
+ COMMON_INTERCEPTOR_WRITE_RANGE(ctx, dest, sizeof(*src) * (res + 1)); \
+ return res; \
+ }
+
+INTERCEPTOR(SIZE_T, strxfrm, char *dest, const char *src, SIZE_T len) {
+ STRXFRM_INTERCEPTOR_IMPL(strxfrm, dest, src, len);
+}
+
+INTERCEPTOR(SIZE_T, strxfrm_l, char *dest, const char *src, SIZE_T len,
+ void *locale) {
+ STRXFRM_INTERCEPTOR_IMPL(strxfrm_l, dest, src, len, locale);
+}
+
+#define INIT_STRXFRM \
+ COMMON_INTERCEPT_FUNCTION(strxfrm); \
+ COMMON_INTERCEPT_FUNCTION(strxfrm_l);
+#else
+#define INIT_STRXFRM
+#endif
+
+#if SANITIZER_INTERCEPT___STRXFRM_L
+INTERCEPTOR(SIZE_T, __strxfrm_l, char *dest, const char *src, SIZE_T len,
+ void *locale) {
+ STRXFRM_INTERCEPTOR_IMPL(__strxfrm_l, dest, src, len, locale);
+}
+
+#define INIT___STRXFRM_L COMMON_INTERCEPT_FUNCTION(__strxfrm_l);
+#else
+#define INIT___STRXFRM_L
+#endif
+
+#if SANITIZER_INTERCEPT_WCSXFRM
+INTERCEPTOR(SIZE_T, wcsxfrm, wchar_t *dest, const wchar_t *src, SIZE_T len) {
+ STRXFRM_INTERCEPTOR_IMPL(wcsxfrm, dest, src, len);
+}
+
+INTERCEPTOR(SIZE_T, wcsxfrm_l, wchar_t *dest, const wchar_t *src, SIZE_T len,
+ void *locale) {
+ STRXFRM_INTERCEPTOR_IMPL(wcsxfrm_l, dest, src, len, locale);
+}
+
+#define INIT_WCSXFRM \
+ COMMON_INTERCEPT_FUNCTION(wcsxfrm); \
+ COMMON_INTERCEPT_FUNCTION(wcsxfrm_l);
+#else
+#define INIT_WCSXFRM
+#endif
+
+#if SANITIZER_INTERCEPT___WCSXFRM_L
+INTERCEPTOR(SIZE_T, __wcsxfrm_l, wchar_t *dest, const wchar_t *src, SIZE_T len,
+ void *locale) {
+ STRXFRM_INTERCEPTOR_IMPL(__wcsxfrm_l, dest, src, len, locale);
+}
+
+#define INIT___WCSXFRM_L COMMON_INTERCEPT_FUNCTION(__wcsxfrm_l);
+#else
+#define INIT___WCSXFRM_L
+#endif
+
+#if SANITIZER_INTERCEPT_ACCT
+INTERCEPTOR(int, acct, const char *file) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, acct, file);
+ if (file)
+ COMMON_INTERCEPTOR_READ_RANGE(ctx, file, REAL(strlen)(file) + 1);
+ return REAL(acct)(file);
+}
+#define INIT_ACCT COMMON_INTERCEPT_FUNCTION(acct)
+#else
+#define INIT_ACCT
+#endif
+
+#if SANITIZER_INTERCEPT_USER_FROM_UID
+INTERCEPTOR(const char *, user_from_uid, u32 uid, int nouser) {
+ void *ctx;
+ const char *user;
+ COMMON_INTERCEPTOR_ENTER(ctx, user_from_uid, uid, nouser);
+ user = REAL(user_from_uid)(uid, nouser);
+ if (user)
+ COMMON_INTERCEPTOR_WRITE_RANGE(ctx, user, REAL(strlen)(user) + 1);
+ return user;
+}
+#define INIT_USER_FROM_UID COMMON_INTERCEPT_FUNCTION(user_from_uid)
+#else
+#define INIT_USER_FROM_UID
+#endif
+
+#if SANITIZER_INTERCEPT_UID_FROM_USER
+INTERCEPTOR(int, uid_from_user, const char *name, u32 *uid) {
+ void *ctx;
+ int res;
+ COMMON_INTERCEPTOR_ENTER(ctx, uid_from_user, name, uid);
+ if (name)
+ COMMON_INTERCEPTOR_READ_RANGE(ctx, name, REAL(strlen)(name) + 1);
+ res = REAL(uid_from_user)(name, uid);
+ if (uid)
+ COMMON_INTERCEPTOR_WRITE_RANGE(ctx, uid, sizeof(*uid));
+ return res;
+}
+#define INIT_UID_FROM_USER COMMON_INTERCEPT_FUNCTION(uid_from_user)
+#else
+#define INIT_UID_FROM_USER
+#endif
+
+#if SANITIZER_INTERCEPT_GROUP_FROM_GID
+INTERCEPTOR(const char *, group_from_gid, u32 gid, int nogroup) {
+ void *ctx;
+ const char *group;
+ COMMON_INTERCEPTOR_ENTER(ctx, group_from_gid, gid, nogroup);
+ group = REAL(group_from_gid)(gid, nogroup);
+ if (group)
+ COMMON_INTERCEPTOR_WRITE_RANGE(ctx, group, REAL(strlen)(group) + 1);
+ return group;
+}
+#define INIT_GROUP_FROM_GID COMMON_INTERCEPT_FUNCTION(group_from_gid)
+#else
+#define INIT_GROUP_FROM_GID
+#endif
+
+#if SANITIZER_INTERCEPT_GID_FROM_GROUP
+INTERCEPTOR(int, gid_from_group, const char *group, u32 *gid) {
+ void *ctx;
+ int res;
+ COMMON_INTERCEPTOR_ENTER(ctx, gid_from_group, group, gid);
+ if (group)
+ COMMON_INTERCEPTOR_READ_RANGE(ctx, group, REAL(strlen)(group) + 1);
+ res = REAL(gid_from_group)(group, gid);
+ if (gid)
+ COMMON_INTERCEPTOR_WRITE_RANGE(ctx, gid, sizeof(*gid));
+ return res;
+}
+#define INIT_GID_FROM_GROUP COMMON_INTERCEPT_FUNCTION(gid_from_group)
+#else
+#define INIT_GID_FROM_GROUP
+#endif
+
+#if SANITIZER_INTERCEPT_ACCESS
+INTERCEPTOR(int, access, const char *path, int mode) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, access, path, mode);
+ if (path)
+ COMMON_INTERCEPTOR_READ_RANGE(ctx, path, REAL(strlen)(path) + 1);
+ return REAL(access)(path, mode);
+}
+#define INIT_ACCESS COMMON_INTERCEPT_FUNCTION(access)
+#else
+#define INIT_ACCESS
+#endif
+
+#if SANITIZER_INTERCEPT_FACCESSAT
+INTERCEPTOR(int, faccessat, int fd, const char *path, int mode, int flags) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, faccessat, fd, path, mode, flags);
+ if (path)
+ COMMON_INTERCEPTOR_READ_RANGE(ctx, path, REAL(strlen)(path) + 1);
+ return REAL(faccessat)(fd, path, mode, flags);
+}
+#define INIT_FACCESSAT COMMON_INTERCEPT_FUNCTION(faccessat)
+#else
+#define INIT_FACCESSAT
+#endif
+
+#if SANITIZER_INTERCEPT_GETGROUPLIST
+INTERCEPTOR(int, getgrouplist, const char *name, u32 basegid, u32 *groups,
+ int *ngroups) {
+ void *ctx;
+ int res;
+ COMMON_INTERCEPTOR_ENTER(ctx, getgrouplist, name, basegid, groups, ngroups);
+ if (name)
+ COMMON_INTERCEPTOR_READ_RANGE(ctx, name, REAL(strlen)(name) + 1);
+ if (ngroups)
+ COMMON_INTERCEPTOR_READ_RANGE(ctx, ngroups, sizeof(*ngroups));
+ res = REAL(getgrouplist)(name, basegid, groups, ngroups);
+ if (!res && groups && ngroups) {
+ COMMON_INTERCEPTOR_WRITE_RANGE(ctx, groups, sizeof(*groups) * (*ngroups));
+ COMMON_INTERCEPTOR_WRITE_RANGE(ctx, ngroups, sizeof(*ngroups));
+ }
+ return res;
+}
+
+#define INIT_GETGROUPLIST COMMON_INTERCEPT_FUNCTION(getgrouplist);
+#else
+#define INIT_GETGROUPLIST
+#endif
+
+#if SANITIZER_INTERCEPT_GETGROUPMEMBERSHIP
+INTERCEPTOR(int, getgroupmembership, const char *name, u32 basegid, u32 *groups,
+ int maxgrp, int *ngroups) {
+ void *ctx;
+ int res;
+ COMMON_INTERCEPTOR_ENTER(ctx, getgroupmembership, name, basegid, groups,
+ maxgrp, ngroups);
+ if (name)
+ COMMON_INTERCEPTOR_READ_RANGE(ctx, name, REAL(strlen)(name) + 1);
+ res = REAL(getgroupmembership)(name, basegid, groups, maxgrp, ngroups);
+ if (!res && groups && ngroups) {
+ COMMON_INTERCEPTOR_WRITE_RANGE(ctx, groups, sizeof(*groups) * (*ngroups));
+ COMMON_INTERCEPTOR_WRITE_RANGE(ctx, ngroups, sizeof(*ngroups));
+ }
+ return res;
+}
+
+#define INIT_GETGROUPMEMBERSHIP COMMON_INTERCEPT_FUNCTION(getgroupmembership);
+#else
+#define INIT_GETGROUPMEMBERSHIP
+#endif
+
+#if SANITIZER_INTERCEPT_READLINK
+INTERCEPTOR(SSIZE_T, readlink, const char *path, char *buf, SIZE_T bufsiz) {
+ void* ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, readlink, path, buf, bufsiz);
+ COMMON_INTERCEPTOR_READ_RANGE(ctx, path, REAL(strlen)(path) + 1);
+ SSIZE_T res = REAL(readlink)(path, buf, bufsiz);
+ if (res > 0)
+ COMMON_INTERCEPTOR_WRITE_RANGE(ctx, buf, res);
+ return res;
+}
+
+#define INIT_READLINK COMMON_INTERCEPT_FUNCTION(readlink)
+#else
+#define INIT_READLINK
+#endif
+
+#if SANITIZER_INTERCEPT_READLINKAT
+INTERCEPTOR(SSIZE_T, readlinkat, int dirfd, const char *path, char *buf,
+ SIZE_T bufsiz) {
+ void* ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, readlinkat, dirfd, path, buf, bufsiz);
+ COMMON_INTERCEPTOR_READ_RANGE(ctx, path, REAL(strlen)(path) + 1);
+ SSIZE_T res = REAL(readlinkat)(dirfd, path, buf, bufsiz);
+ if (res > 0)
+ COMMON_INTERCEPTOR_WRITE_RANGE(ctx, buf, res);
+ return res;
+}
+
+#define INIT_READLINKAT COMMON_INTERCEPT_FUNCTION(readlinkat)
+#else
+#define INIT_READLINKAT
+#endif
+
+#if SANITIZER_INTERCEPT_NAME_TO_HANDLE_AT
+INTERCEPTOR(int, name_to_handle_at, int dirfd, const char *pathname,
+ struct file_handle *handle, int *mount_id, int flags) {
+ void* ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, name_to_handle_at, dirfd, pathname, handle,
+ mount_id, flags);
+ COMMON_INTERCEPTOR_READ_RANGE(ctx, pathname, REAL(strlen)(pathname) + 1);
+
+ __sanitizer_file_handle *sanitizer_handle =
+ reinterpret_cast<__sanitizer_file_handle*>(handle);
+ COMMON_INTERCEPTOR_READ_RANGE(
+ ctx, &sanitizer_handle->handle_bytes,
+ sizeof(sanitizer_handle->handle_bytes));
+
+ int res = REAL(name_to_handle_at)(dirfd, pathname, handle, mount_id, flags);
+ if (!res) {
+ COMMON_INTERCEPTOR_WRITE_RANGE(
+ ctx, &sanitizer_handle->handle_bytes,
+ sizeof(sanitizer_handle->handle_bytes));
+ COMMON_INTERCEPTOR_WRITE_RANGE(
+ ctx, &sanitizer_handle->handle_type,
+ sizeof(sanitizer_handle->handle_type));
+ COMMON_INTERCEPTOR_WRITE_RANGE(
+ ctx, &sanitizer_handle->f_handle, sanitizer_handle->handle_bytes);
+ COMMON_INTERCEPTOR_WRITE_RANGE(ctx, mount_id, sizeof(*mount_id));
+ }
+ return res;
+}
+
+#define INIT_NAME_TO_HANDLE_AT COMMON_INTERCEPT_FUNCTION(name_to_handle_at)
+#else
+#define INIT_NAME_TO_HANDLE_AT
+#endif
+
+#if SANITIZER_INTERCEPT_OPEN_BY_HANDLE_AT
+INTERCEPTOR(int, open_by_handle_at, int mount_fd, struct file_handle* handle,
+ int flags) {
+ void* ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, open_by_handle_at, mount_fd, handle, flags);
+
+ __sanitizer_file_handle *sanitizer_handle =
+ reinterpret_cast<__sanitizer_file_handle*>(handle);
+ COMMON_INTERCEPTOR_READ_RANGE(
+ ctx, &sanitizer_handle->handle_bytes,
+ sizeof(sanitizer_handle->handle_bytes));
+ COMMON_INTERCEPTOR_READ_RANGE(
+ ctx, &sanitizer_handle->handle_type,
+ sizeof(sanitizer_handle->handle_type));
+ COMMON_INTERCEPTOR_READ_RANGE(
+ ctx, &sanitizer_handle->f_handle, sanitizer_handle->handle_bytes);
+
+ return REAL(open_by_handle_at)(mount_fd, handle, flags);
+}
+
+#define INIT_OPEN_BY_HANDLE_AT COMMON_INTERCEPT_FUNCTION(open_by_handle_at)
+#else
+#define INIT_OPEN_BY_HANDLE_AT
+#endif
+
+#if SANITIZER_INTERCEPT_STRLCPY
+INTERCEPTOR(SIZE_T, strlcpy, char *dst, char *src, SIZE_T size) {
+ void *ctx;
+ SIZE_T res;
+ COMMON_INTERCEPTOR_ENTER(ctx, strlcpy, dst, src, size);
+ if (src) {
+ // Keep strnlen as macro argument, as macro may ignore it.
+ COMMON_INTERCEPTOR_READ_STRING(
+ ctx, src, Min(internal_strnlen(src, size), size - 1) + 1);
+ }
+ res = REAL(strlcpy)(dst, src, size);
+ COMMON_INTERCEPTOR_COPY_STRING(ctx, dst, src, REAL(strlen)(dst) + 1);
+ return res;
+}
+
+INTERCEPTOR(SIZE_T, strlcat, char *dst, char *src, SIZE_T size) {
+ void *ctx;
+ SIZE_T len = 0;
+ COMMON_INTERCEPTOR_ENTER(ctx, strlcat, dst, src, size);
+ // src is checked in the strlcpy() interceptor
+ if (dst) {
+ len = internal_strnlen(dst, size);
+ COMMON_INTERCEPTOR_READ_STRING(ctx, dst, Min(len, size - 1) + 1);
+ }
+ // Reuse the rest of the code in the strlcpy() interceptor
+ return WRAP(strlcpy)(dst + len, src, size - len) + len;
+}
+#define INIT_STRLCPY \
+ COMMON_INTERCEPT_FUNCTION(strlcpy); \
+ COMMON_INTERCEPT_FUNCTION(strlcat);
+#else
+#define INIT_STRLCPY
+#endif
+
+#if SANITIZER_INTERCEPT_MMAP
+INTERCEPTOR(void *, mmap, void *addr, SIZE_T sz, int prot, int flags, int fd,
+ OFF_T off) {
+ void *ctx;
+ if (common_flags()->detect_write_exec)
+ ReportMmapWriteExec(prot);
+ if (COMMON_INTERCEPTOR_NOTHING_IS_INITIALIZED)
+ return (void *)internal_mmap(addr, sz, prot, flags, fd, off);
+ COMMON_INTERCEPTOR_ENTER(ctx, mmap, addr, sz, prot, flags, fd, off);
+ COMMON_INTERCEPTOR_MMAP_IMPL(ctx, mmap, addr, sz, prot, flags, fd, off);
+}
+
+INTERCEPTOR(int, mprotect, void *addr, SIZE_T sz, int prot) {
+ void *ctx;
+ if (common_flags()->detect_write_exec)
+ ReportMmapWriteExec(prot);
+ if (COMMON_INTERCEPTOR_NOTHING_IS_INITIALIZED)
+ return (int)internal_mprotect(addr, sz, prot);
+ COMMON_INTERCEPTOR_ENTER(ctx, mprotect, addr, sz, prot);
+ MprotectMallocZones(addr, prot);
+ return REAL(mprotect)(addr, sz, prot);
+}
+#define INIT_MMAP \
+ COMMON_INTERCEPT_FUNCTION(mmap); \
+ COMMON_INTERCEPT_FUNCTION(mprotect);
+#else
+#define INIT_MMAP
+#endif
+
+#if SANITIZER_INTERCEPT_MMAP64
+INTERCEPTOR(void *, mmap64, void *addr, SIZE_T sz, int prot, int flags, int fd,
+ OFF64_T off) {
+ void *ctx;
+ if (common_flags()->detect_write_exec)
+ ReportMmapWriteExec(prot);
+ if (COMMON_INTERCEPTOR_NOTHING_IS_INITIALIZED)
+ return (void *)internal_mmap(addr, sz, prot, flags, fd, off);
+ COMMON_INTERCEPTOR_ENTER(ctx, mmap64, addr, sz, prot, flags, fd, off);
+ COMMON_INTERCEPTOR_MMAP_IMPL(ctx, mmap64, addr, sz, prot, flags, fd, off);
+}
+#define INIT_MMAP64 COMMON_INTERCEPT_FUNCTION(mmap64);
+#else
+#define INIT_MMAP64
+#endif
+
+#if SANITIZER_INTERCEPT_DEVNAME
+INTERCEPTOR(char *, devname, u64 dev, u32 type) {
+ void *ctx;
+ char *name;
+ COMMON_INTERCEPTOR_ENTER(ctx, devname, dev, type);
+ name = REAL(devname)(dev, type);
+ if (name)
+ COMMON_INTERCEPTOR_WRITE_RANGE(ctx, name, REAL(strlen)(name) + 1);
+ return name;
+}
+#define INIT_DEVNAME COMMON_INTERCEPT_FUNCTION(devname);
+#else
+#define INIT_DEVNAME
+#endif
+
+#if SANITIZER_INTERCEPT_DEVNAME_R
+#if SANITIZER_NETBSD
+#define DEVNAME_R_RETTYPE int
+#define DEVNAME_R_SUCCESS(x) (!(x))
+#else
+#define DEVNAME_R_RETTYPE char*
+#define DEVNAME_R_SUCCESS(x) (x)
+#endif
+INTERCEPTOR(DEVNAME_R_RETTYPE, devname_r, u64 dev, u32 type, char *path,
+ uptr len) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, devname_r, dev, type, path, len);
+ DEVNAME_R_RETTYPE res = REAL(devname_r)(dev, type, path, len);
+ if (DEVNAME_R_SUCCESS(res))
+ COMMON_INTERCEPTOR_WRITE_RANGE(ctx, path, REAL(strlen)(path) + 1);
+ return res;
+}
+#define INIT_DEVNAME_R COMMON_INTERCEPT_FUNCTION(devname_r);
+#else
+#define INIT_DEVNAME_R
+#endif
+
+#if SANITIZER_INTERCEPT_FGETLN
+INTERCEPTOR(char *, fgetln, __sanitizer_FILE *stream, SIZE_T *len) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, fgetln, stream, len);
+ char *str = REAL(fgetln)(stream, len);
+ if (str && len) {
+ COMMON_INTERCEPTOR_WRITE_RANGE(ctx, len, sizeof(*len));
+ COMMON_INTERCEPTOR_WRITE_RANGE(ctx, str, *len);
+ }
+ return str;
+}
+#define INIT_FGETLN COMMON_INTERCEPT_FUNCTION(fgetln)
+#else
+#define INIT_FGETLN
+#endif
+
+#if SANITIZER_INTERCEPT_STRMODE
+INTERCEPTOR(void, strmode, u32 mode, char *bp) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, strmode, mode, bp);
+ REAL(strmode)(mode, bp);
+ if (bp)
+ COMMON_INTERCEPTOR_WRITE_RANGE(ctx, bp, REAL(strlen)(bp) + 1);
+}
+#define INIT_STRMODE COMMON_INTERCEPT_FUNCTION(strmode)
+#else
+#define INIT_STRMODE
+#endif
+
+#if SANITIZER_INTERCEPT_TTYENT
+INTERCEPTOR(struct __sanitizer_ttyent *, getttyent, void) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, getttyent);
+ struct __sanitizer_ttyent *ttyent = REAL(getttyent)();
+ if (ttyent)
+ COMMON_INTERCEPTOR_WRITE_RANGE(ctx, ttyent, struct_ttyent_sz);
+ return ttyent;
+}
+INTERCEPTOR(struct __sanitizer_ttyent *, getttynam, char *name) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, getttynam, name);
+ if (name)
+ COMMON_INTERCEPTOR_READ_RANGE(ctx, name, REAL(strlen)(name) + 1);
+ struct __sanitizer_ttyent *ttyent = REAL(getttynam)(name);
+ if (ttyent)
+ COMMON_INTERCEPTOR_WRITE_RANGE(ctx, ttyent, struct_ttyent_sz);
+ return ttyent;
+}
+INTERCEPTOR(int, setttyentpath, char *path) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, setttyentpath, path);
+ if (path)
+ COMMON_INTERCEPTOR_READ_RANGE(ctx, path, REAL(strlen)(path) + 1);
+ return REAL(setttyentpath)(path);
+}
+#define INIT_TTYENT \
+ COMMON_INTERCEPT_FUNCTION(getttyent); \
+ COMMON_INTERCEPT_FUNCTION(getttynam); \
+ COMMON_INTERCEPT_FUNCTION(setttyentpath)
+#else
+#define INIT_TTYENT
+#endif
+
+#if SANITIZER_INTERCEPT_PROTOENT
+INTERCEPTOR(struct __sanitizer_protoent *, getprotoent) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, getprotoent);
+ struct __sanitizer_protoent *p = REAL(getprotoent)();
+ if (p) {
+ COMMON_INTERCEPTOR_WRITE_RANGE(ctx, p, sizeof(*p));
+
+ COMMON_INTERCEPTOR_WRITE_RANGE(ctx, p->p_name, REAL(strlen)(p->p_name) + 1);
+
+ SIZE_T pp_size = 1; // One handles the trailing \0
+
+ for (char **pp = p->p_aliases; *pp; ++pp, ++pp_size)
+ COMMON_INTERCEPTOR_WRITE_RANGE(ctx, *pp, REAL(strlen)(*pp) + 1);
+
+ COMMON_INTERCEPTOR_WRITE_RANGE(ctx, p->p_aliases,
+ pp_size * sizeof(char **));
+ }
+ return p;
+}
+
+INTERCEPTOR(struct __sanitizer_protoent *, getprotobyname, const char *name) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, getprotobyname, name);
+ if (name)
+ COMMON_INTERCEPTOR_READ_RANGE(ctx, name, REAL(strlen)(name) + 1);
+ struct __sanitizer_protoent *p = REAL(getprotobyname)(name);
+ if (p) {
+ COMMON_INTERCEPTOR_WRITE_RANGE(ctx, p, sizeof(*p));
+
+ COMMON_INTERCEPTOR_WRITE_RANGE(ctx, p->p_name, REAL(strlen)(p->p_name) + 1);
+
+ SIZE_T pp_size = 1; // One handles the trailing \0
+
+ for (char **pp = p->p_aliases; *pp; ++pp, ++pp_size)
+ COMMON_INTERCEPTOR_WRITE_RANGE(ctx, *pp, REAL(strlen)(*pp) + 1);
+
+ COMMON_INTERCEPTOR_WRITE_RANGE(ctx, p->p_aliases,
+ pp_size * sizeof(char **));
+ }
+ return p;
+}
+
+INTERCEPTOR(struct __sanitizer_protoent *, getprotobynumber, int proto) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, getprotobynumber, proto);
+ struct __sanitizer_protoent *p = REAL(getprotobynumber)(proto);
+ if (p) {
+ COMMON_INTERCEPTOR_WRITE_RANGE(ctx, p, sizeof(*p));
+
+ COMMON_INTERCEPTOR_WRITE_RANGE(ctx, p->p_name, REAL(strlen)(p->p_name) + 1);
+
+ SIZE_T pp_size = 1; // One handles the trailing \0
+
+ for (char **pp = p->p_aliases; *pp; ++pp, ++pp_size)
+ COMMON_INTERCEPTOR_WRITE_RANGE(ctx, *pp, REAL(strlen)(*pp) + 1);
+
+ COMMON_INTERCEPTOR_WRITE_RANGE(ctx, p->p_aliases,
+ pp_size * sizeof(char **));
+ }
+ return p;
+}
+#define INIT_PROTOENT \
+ COMMON_INTERCEPT_FUNCTION(getprotoent); \
+ COMMON_INTERCEPT_FUNCTION(getprotobyname); \
+ COMMON_INTERCEPT_FUNCTION(getprotobynumber)
+#else
+#define INIT_PROTOENT
+#endif
+
+#if SANITIZER_INTERCEPT_NETENT
+INTERCEPTOR(struct __sanitizer_netent *, getnetent) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, getnetent);
+ struct __sanitizer_netent *n = REAL(getnetent)();
+ if (n) {
+ COMMON_INTERCEPTOR_WRITE_RANGE(ctx, n, sizeof(*n));
+
+ COMMON_INTERCEPTOR_WRITE_RANGE(ctx, n->n_name, REAL(strlen)(n->n_name) + 1);
+
+ SIZE_T nn_size = 1; // One handles the trailing \0
+
+ for (char **nn = n->n_aliases; *nn; ++nn, ++nn_size)
+ COMMON_INTERCEPTOR_WRITE_RANGE(ctx, *nn, REAL(strlen)(*nn) + 1);
+
+ COMMON_INTERCEPTOR_WRITE_RANGE(ctx, n->n_aliases,
+ nn_size * sizeof(char **));
+ }
+ return n;
+}
+
+INTERCEPTOR(struct __sanitizer_netent *, getnetbyname, const char *name) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, getnetbyname, name);
+ if (name)
+ COMMON_INTERCEPTOR_READ_RANGE(ctx, name, REAL(strlen)(name) + 1);
+ struct __sanitizer_netent *n = REAL(getnetbyname)(name);
+ if (n) {
+ COMMON_INTERCEPTOR_WRITE_RANGE(ctx, n, sizeof(*n));
+
+ COMMON_INTERCEPTOR_WRITE_RANGE(ctx, n->n_name, REAL(strlen)(n->n_name) + 1);
+
+ SIZE_T nn_size = 1; // One handles the trailing \0
+
+ for (char **nn = n->n_aliases; *nn; ++nn, ++nn_size)
+ COMMON_INTERCEPTOR_WRITE_RANGE(ctx, *nn, REAL(strlen)(*nn) + 1);
+
+ COMMON_INTERCEPTOR_WRITE_RANGE(ctx, n->n_aliases,
+ nn_size * sizeof(char **));
+ }
+ return n;
+}
+
+INTERCEPTOR(struct __sanitizer_netent *, getnetbyaddr, u32 net, int type) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, getnetbyaddr, net, type);
+ struct __sanitizer_netent *n = REAL(getnetbyaddr)(net, type);
+ if (n) {
+ COMMON_INTERCEPTOR_WRITE_RANGE(ctx, n, sizeof(*n));
+
+ COMMON_INTERCEPTOR_WRITE_RANGE(ctx, n->n_name, REAL(strlen)(n->n_name) + 1);
+
+ SIZE_T nn_size = 1; // One handles the trailing \0
+
+ for (char **nn = n->n_aliases; *nn; ++nn, ++nn_size)
+ COMMON_INTERCEPTOR_WRITE_RANGE(ctx, *nn, REAL(strlen)(*nn) + 1);
+
+ COMMON_INTERCEPTOR_WRITE_RANGE(ctx, n->n_aliases,
+ nn_size * sizeof(char **));
+ }
+ return n;
+}
+#define INIT_NETENT \
+ COMMON_INTERCEPT_FUNCTION(getnetent); \
+ COMMON_INTERCEPT_FUNCTION(getnetbyname); \
+ COMMON_INTERCEPT_FUNCTION(getnetbyaddr)
+#else
+#define INIT_NETENT
+#endif
+
+#if SANITIZER_INTERCEPT_GETMNTINFO
+INTERCEPTOR(int, getmntinfo, void **mntbufp, int flags) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, getmntinfo, mntbufp, flags);
+ int cnt = REAL(getmntinfo)(mntbufp, flags);
+ if (cnt > 0 && mntbufp) {
+ COMMON_INTERCEPTOR_WRITE_RANGE(ctx, mntbufp, sizeof(void *));
+ if (*mntbufp)
+#if SANITIZER_NETBSD
+ COMMON_INTERCEPTOR_WRITE_RANGE(ctx, *mntbufp, cnt * struct_statvfs_sz);
+#else
+ COMMON_INTERCEPTOR_WRITE_RANGE(ctx, *mntbufp, cnt * struct_statfs_sz);
+#endif
+ }
+ return cnt;
+}
+#define INIT_GETMNTINFO COMMON_INTERCEPT_FUNCTION(getmntinfo)
+#else
+#define INIT_GETMNTINFO
+#endif
+
+#if SANITIZER_INTERCEPT_MI_VECTOR_HASH
+INTERCEPTOR(void, mi_vector_hash, const void *key, SIZE_T len, u32 seed,
+ u32 hashes[3]) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, mi_vector_hash, key, len, seed, hashes);
+ if (key)
+ COMMON_INTERCEPTOR_READ_RANGE(ctx, key, len);
+ REAL(mi_vector_hash)(key, len, seed, hashes);
+ if (hashes)
+ COMMON_INTERCEPTOR_WRITE_RANGE(ctx, hashes, sizeof(hashes[0]) * 3);
+}
+#define INIT_MI_VECTOR_HASH COMMON_INTERCEPT_FUNCTION(mi_vector_hash)
+#else
+#define INIT_MI_VECTOR_HASH
+#endif
+
+#if SANITIZER_INTERCEPT_SETVBUF
+INTERCEPTOR(int, setvbuf, __sanitizer_FILE *stream, char *buf, int mode,
+ SIZE_T size) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, setvbuf, stream, buf, mode, size);
+ int ret = REAL(setvbuf)(stream, buf, mode, size);
+ if (buf)
+ COMMON_INTERCEPTOR_WRITE_RANGE(ctx, buf, size);
+ if (stream)
+ unpoison_file(stream);
+ return ret;
+}
+
+INTERCEPTOR(void, setbuf, __sanitizer_FILE *stream, char *buf) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, setbuf, stream, buf);
+ REAL(setbuf)(stream, buf);
+ if (buf) {
+ COMMON_INTERCEPTOR_WRITE_RANGE(ctx, buf, __sanitizer_bufsiz);
+ }
+ if (stream)
+ unpoison_file(stream);
+}
+
+INTERCEPTOR(void, setbuffer, __sanitizer_FILE *stream, char *buf, int mode) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, setbuffer, stream, buf, mode);
+ REAL(setbuffer)(stream, buf, mode);
+ if (buf) {
+ COMMON_INTERCEPTOR_WRITE_RANGE(ctx, buf, __sanitizer_bufsiz);
+ }
+ if (stream)
+ unpoison_file(stream);
+}
+
+INTERCEPTOR(void, setlinebuf, __sanitizer_FILE *stream) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, setlinebuf, stream);
+ REAL(setlinebuf)(stream);
+ if (stream)
+ unpoison_file(stream);
+}
+#define INIT_SETVBUF COMMON_INTERCEPT_FUNCTION(setvbuf); \
+ COMMON_INTERCEPT_FUNCTION(setbuf); \
+ COMMON_INTERCEPT_FUNCTION(setbuffer); \
+ COMMON_INTERCEPT_FUNCTION(setlinebuf)
+#else
+#define INIT_SETVBUF
+#endif
+
+#if SANITIZER_INTERCEPT_GETVFSSTAT
+INTERCEPTOR(int, getvfsstat, void *buf, SIZE_T bufsize, int flags) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, getvfsstat, buf, bufsize, flags);
+ int ret = REAL(getvfsstat)(buf, bufsize, flags);
+ if (buf && ret > 0)
+ COMMON_INTERCEPTOR_WRITE_RANGE(ctx, buf, ret * struct_statvfs_sz);
+ return ret;
+}
+#define INIT_GETVFSSTAT COMMON_INTERCEPT_FUNCTION(getvfsstat)
+#else
+#define INIT_GETVFSSTAT
+#endif
+
+#if SANITIZER_INTERCEPT_REGEX
+INTERCEPTOR(int, regcomp, void *preg, const char *pattern, int cflags) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, regcomp, preg, pattern, cflags);
+ if (pattern)
+ COMMON_INTERCEPTOR_READ_RANGE(ctx, pattern, REAL(strlen)(pattern) + 1);
+ int res = REAL(regcomp)(preg, pattern, cflags);
+ if (!res)
+ COMMON_INTERCEPTOR_WRITE_RANGE(ctx, preg, struct_regex_sz);
+ return res;
+}
+INTERCEPTOR(int, regexec, const void *preg, const char *string, SIZE_T nmatch,
+ struct __sanitizer_regmatch *pmatch[], int eflags) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, regexec, preg, string, nmatch, pmatch, eflags);
+ if (preg)
+ COMMON_INTERCEPTOR_READ_RANGE(ctx, preg, struct_regex_sz);
+ if (string)
+ COMMON_INTERCEPTOR_READ_RANGE(ctx, string, REAL(strlen)(string) + 1);
+ int res = REAL(regexec)(preg, string, nmatch, pmatch, eflags);
+ if (!res && pmatch)
+ COMMON_INTERCEPTOR_WRITE_RANGE(ctx, pmatch, nmatch * struct_regmatch_sz);
+ return res;
+}
+INTERCEPTOR(SIZE_T, regerror, int errcode, const void *preg, char *errbuf,
+ SIZE_T errbuf_size) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, regerror, errcode, preg, errbuf, errbuf_size);
+ if (preg)
+ COMMON_INTERCEPTOR_READ_RANGE(ctx, preg, struct_regex_sz);
+ SIZE_T res = REAL(regerror)(errcode, preg, errbuf, errbuf_size);
+ if (errbuf)
+ COMMON_INTERCEPTOR_WRITE_RANGE(ctx, errbuf, REAL(strlen)(errbuf) + 1);
+ return res;
+}
+INTERCEPTOR(void, regfree, const void *preg) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, regfree, preg);
+ if (preg)
+ COMMON_INTERCEPTOR_READ_RANGE(ctx, preg, struct_regex_sz);
+ REAL(regfree)(preg);
+}
+#define INIT_REGEX \
+ COMMON_INTERCEPT_FUNCTION(regcomp); \
+ COMMON_INTERCEPT_FUNCTION(regexec); \
+ COMMON_INTERCEPT_FUNCTION(regerror); \
+ COMMON_INTERCEPT_FUNCTION(regfree);
+#else
+#define INIT_REGEX
+#endif
+
+#if SANITIZER_INTERCEPT_REGEXSUB
+INTERCEPTOR(SSIZE_T, regnsub, char *buf, SIZE_T bufsiz, const char *sub,
+ const struct __sanitizer_regmatch *rm, const char *str) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, regnsub, buf, bufsiz, sub, rm, str);
+ if (sub)
+ COMMON_INTERCEPTOR_READ_RANGE(ctx, sub, REAL(strlen)(sub) + 1);
+ // The implementation demands and hardcodes 10 elements
+ if (rm)
+ COMMON_INTERCEPTOR_READ_RANGE(ctx, rm, 10 * struct_regmatch_sz);
+ if (str)
+ COMMON_INTERCEPTOR_READ_RANGE(ctx, str, REAL(strlen)(str) + 1);
+ SSIZE_T res = REAL(regnsub)(buf, bufsiz, sub, rm, str);
+ if (res > 0 && buf)
+ COMMON_INTERCEPTOR_WRITE_RANGE(ctx, buf, REAL(strlen)(buf) + 1);
+ return res;
+}
+INTERCEPTOR(SSIZE_T, regasub, char **buf, const char *sub,
+ const struct __sanitizer_regmatch *rm, const char *sstr) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, regasub, buf, sub, rm, sstr);
+ if (sub)
+ COMMON_INTERCEPTOR_READ_RANGE(ctx, sub, REAL(strlen)(sub) + 1);
+ // Hardcode 10 elements as this is hardcoded size
+ if (rm)
+ COMMON_INTERCEPTOR_READ_RANGE(ctx, rm, 10 * struct_regmatch_sz);
+ if (sstr)
+ COMMON_INTERCEPTOR_READ_RANGE(ctx, sstr, REAL(strlen)(sstr) + 1);
+ SSIZE_T res = REAL(regasub)(buf, sub, rm, sstr);
+ if (res > 0 && buf) {
+ COMMON_INTERCEPTOR_WRITE_RANGE(ctx, buf, sizeof(char *));
+ COMMON_INTERCEPTOR_WRITE_RANGE(ctx, *buf, REAL(strlen)(*buf) + 1);
+ }
+ return res;
+}
+
+#define INIT_REGEXSUB \
+ COMMON_INTERCEPT_FUNCTION(regnsub); \
+ COMMON_INTERCEPT_FUNCTION(regasub);
+#else
+#define INIT_REGEXSUB
+#endif
+
+#if SANITIZER_INTERCEPT_FTS
+INTERCEPTOR(void *, fts_open, char *const *path_argv, int options,
+ int (*compar)(void **, void **)) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, fts_open, path_argv, options, compar);
+ if (path_argv) {
+ for (char *const *pa = path_argv; ; ++pa) {
+ COMMON_INTERCEPTOR_READ_RANGE(ctx, pa, sizeof(char **));
+ if (!*pa)
+ break;
+ COMMON_INTERCEPTOR_READ_RANGE(ctx, *pa, REAL(strlen)(*pa) + 1);
+ }
+ }
+ // TODO(kamil): handle compar callback
+ void *fts = REAL(fts_open)(path_argv, options, compar);
+ if (fts)
+ COMMON_INTERCEPTOR_WRITE_RANGE(ctx, fts, struct_FTS_sz);
+ return fts;
+}
+
+INTERCEPTOR(void *, fts_read, void *ftsp) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, fts_read, ftsp);
+ if (ftsp)
+ COMMON_INTERCEPTOR_READ_RANGE(ctx, ftsp, struct_FTS_sz);
+ void *ftsent = REAL(fts_read)(ftsp);
+ if (ftsent)
+ COMMON_INTERCEPTOR_WRITE_RANGE(ctx, ftsent, struct_FTSENT_sz);
+ return ftsent;
+}
+
+INTERCEPTOR(void *, fts_children, void *ftsp, int options) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, fts_children, ftsp, options);
+ if (ftsp)
+ COMMON_INTERCEPTOR_READ_RANGE(ctx, ftsp, struct_FTS_sz);
+ void *ftsent = REAL(fts_children)(ftsp, options);
+ if (ftsent)
+ COMMON_INTERCEPTOR_WRITE_RANGE(ctx, ftsent, struct_FTSENT_sz);
+ return ftsent;
+}
+
+INTERCEPTOR(int, fts_set, void *ftsp, void *f, int options) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, fts_set, ftsp, f, options);
+ if (ftsp)
+ COMMON_INTERCEPTOR_READ_RANGE(ctx, ftsp, struct_FTS_sz);
+ if (f)
+ COMMON_INTERCEPTOR_READ_RANGE(ctx, f, struct_FTSENT_sz);
+ return REAL(fts_set)(ftsp, f, options);
+}
+
+INTERCEPTOR(int, fts_close, void *ftsp) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, fts_close, ftsp);
+ if (ftsp)
+ COMMON_INTERCEPTOR_READ_RANGE(ctx, ftsp, struct_FTS_sz);
+ return REAL(fts_close)(ftsp);
+}
+#define INIT_FTS \
+ COMMON_INTERCEPT_FUNCTION(fts_open); \
+ COMMON_INTERCEPT_FUNCTION(fts_read); \
+ COMMON_INTERCEPT_FUNCTION(fts_children); \
+ COMMON_INTERCEPT_FUNCTION(fts_set); \
+ COMMON_INTERCEPT_FUNCTION(fts_close);
+#else
+#define INIT_FTS
+#endif
+
+#if SANITIZER_INTERCEPT_SYSCTL
+INTERCEPTOR(int, sysctl, int *name, unsigned int namelen, void *oldp,
+ SIZE_T *oldlenp, void *newp, SIZE_T newlen) {
+ void *ctx;
+ if (COMMON_INTERCEPTOR_NOTHING_IS_INITIALIZED)
+ return internal_sysctl(name, namelen, oldp, oldlenp, newp, newlen);
+ COMMON_INTERCEPTOR_ENTER(ctx, sysctl, name, namelen, oldp, oldlenp, newp,
+ newlen);
+ if (name)
+ COMMON_INTERCEPTOR_READ_RANGE(ctx, name, namelen * sizeof(*name));
+ if (oldlenp)
+ COMMON_INTERCEPTOR_READ_RANGE(ctx, oldlenp, sizeof(*oldlenp));
+ if (newp && newlen)
+ COMMON_INTERCEPTOR_READ_RANGE(ctx, newp, newlen);
+ int res = REAL(sysctl)(name, namelen, oldp, oldlenp, newp, newlen);
+ if (!res) {
+ if (oldlenp) {
+ COMMON_INTERCEPTOR_WRITE_RANGE(ctx, oldlenp, sizeof(*oldlenp));
+ if (oldp)
+ COMMON_INTERCEPTOR_WRITE_RANGE(ctx, oldp, *oldlenp);
+ }
+ }
+ return res;
+}
+
+INTERCEPTOR(int, sysctlbyname, char *sname, void *oldp, SIZE_T *oldlenp,
+ void *newp, SIZE_T newlen) {
+ void *ctx;
+ if (COMMON_INTERCEPTOR_NOTHING_IS_INITIALIZED)
+ return internal_sysctlbyname(sname, oldp, oldlenp, newp, newlen);
+ COMMON_INTERCEPTOR_ENTER(ctx, sysctlbyname, sname, oldp, oldlenp, newp,
+ newlen);
+ if (sname)
+ COMMON_INTERCEPTOR_READ_RANGE(ctx, sname, REAL(strlen)(sname) + 1);
+ if (oldlenp)
+ COMMON_INTERCEPTOR_READ_RANGE(ctx, oldlenp, sizeof(*oldlenp));
+ if (newp && newlen)
+ COMMON_INTERCEPTOR_READ_RANGE(ctx, newp, newlen);
+ int res = REAL(sysctlbyname)(sname, oldp, oldlenp, newp, newlen);
+ if (!res) {
+ if (oldlenp) {
+ COMMON_INTERCEPTOR_WRITE_RANGE(ctx, oldlenp, sizeof(*oldlenp));
+ if (oldp)
+ COMMON_INTERCEPTOR_WRITE_RANGE(ctx, oldp, *oldlenp);
+ }
+ }
+ return res;
+}
+
+INTERCEPTOR(int, sysctlnametomib, const char *sname, int *name,
+ SIZE_T *namelenp) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, sysctlnametomib, sname, name, namelenp);
+ if (sname)
+ COMMON_INTERCEPTOR_READ_RANGE(ctx, sname, REAL(strlen)(sname) + 1);
+ if (namelenp)
+ COMMON_INTERCEPTOR_READ_RANGE(ctx, namelenp, sizeof(*namelenp));
+ int res = REAL(sysctlnametomib)(sname, name, namelenp);
+ if (!res) {
+ if (namelenp) {
+ COMMON_INTERCEPTOR_WRITE_RANGE(ctx, namelenp, sizeof(*namelenp));
+ if (name)
+ COMMON_INTERCEPTOR_WRITE_RANGE(ctx, name, *namelenp * sizeof(*name));
+ }
+ }
+ return res;
+}
+
+#define INIT_SYSCTL \
+ COMMON_INTERCEPT_FUNCTION(sysctl); \
+ COMMON_INTERCEPT_FUNCTION(sysctlbyname); \
+ COMMON_INTERCEPT_FUNCTION(sysctlnametomib);
+#else
+#define INIT_SYSCTL
+#endif
+
+#if SANITIZER_INTERCEPT_ASYSCTL
+INTERCEPTOR(void *, asysctl, const int *name, SIZE_T namelen, SIZE_T *len) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, asysctl, name, namelen, len);
+ if (name)
+ COMMON_INTERCEPTOR_READ_RANGE(ctx, name, sizeof(*name) * namelen);
+ void *res = REAL(asysctl)(name, namelen, len);
+ if (res && len) {
+ COMMON_INTERCEPTOR_WRITE_RANGE(ctx, len, sizeof(*len));
+ COMMON_INTERCEPTOR_WRITE_RANGE(ctx, res, *len);
+ }
+ return res;
+}
+
+INTERCEPTOR(void *, asysctlbyname, const char *sname, SIZE_T *len) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, asysctlbyname, sname, len);
+ if (sname)
+ COMMON_INTERCEPTOR_READ_RANGE(ctx, sname, REAL(strlen)(sname) + 1);
+ void *res = REAL(asysctlbyname)(sname, len);
+ if (res && len) {
+ COMMON_INTERCEPTOR_WRITE_RANGE(ctx, len, sizeof(*len));
+ COMMON_INTERCEPTOR_WRITE_RANGE(ctx, res, *len);
+ }
+ return res;
+}
+#define INIT_ASYSCTL \
+ COMMON_INTERCEPT_FUNCTION(asysctl); \
+ COMMON_INTERCEPT_FUNCTION(asysctlbyname);
+#else
+#define INIT_ASYSCTL
+#endif
+
+#if SANITIZER_INTERCEPT_SYSCTLGETMIBINFO
+INTERCEPTOR(int, sysctlgetmibinfo, char *sname, int *name,
+ unsigned int *namelenp, char *cname, SIZE_T *csz, void **rnode,
+ int v) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, sysctlgetmibinfo, sname, name, namelenp, cname,
+ csz, rnode, v);
+ if (sname)
+ COMMON_INTERCEPTOR_READ_RANGE(ctx, sname, REAL(strlen)(sname) + 1);
+ if (namelenp)
+ COMMON_INTERCEPTOR_READ_RANGE(ctx, namelenp, sizeof(*namelenp));
+ if (csz)
+ COMMON_INTERCEPTOR_READ_RANGE(ctx, csz, sizeof(*csz));
+ // Skip rnode, it's rarely used and not trivial to sanitize
+ // It's also used mostly internally
+ int res = REAL(sysctlgetmibinfo)(sname, name, namelenp, cname, csz, rnode, v);
+ if (!res) {
+ if (namelenp) {
+ COMMON_INTERCEPTOR_WRITE_RANGE(ctx, namelenp, sizeof(*namelenp));
+ if (name)
+ COMMON_INTERCEPTOR_WRITE_RANGE(ctx, name, *namelenp * sizeof(*name));
+ }
+ if (csz) {
+ COMMON_INTERCEPTOR_WRITE_RANGE(ctx, csz, sizeof(*csz));
+ if (cname)
+ COMMON_INTERCEPTOR_WRITE_RANGE(ctx, cname, *csz);
+ }
+ }
+ return res;
+}
+#define INIT_SYSCTLGETMIBINFO \
+ COMMON_INTERCEPT_FUNCTION(sysctlgetmibinfo);
+#else
+#define INIT_SYSCTLGETMIBINFO
+#endif
+
+#if SANITIZER_INTERCEPT_NL_LANGINFO
+INTERCEPTOR(char *, nl_langinfo, long item) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, nl_langinfo, item);
+ char *ret = REAL(nl_langinfo)(item);
+ if (ret)
+ COMMON_INTERCEPTOR_WRITE_RANGE(ctx, ret, REAL(strlen)(ret) + 1);
+ return ret;
+}
+#define INIT_NL_LANGINFO COMMON_INTERCEPT_FUNCTION(nl_langinfo)
+#else
+#define INIT_NL_LANGINFO
+#endif
+
+#if SANITIZER_INTERCEPT_MODCTL
+INTERCEPTOR(int, modctl, int operation, void *argp) {
+ void *ctx;
+ int ret;
+ COMMON_INTERCEPTOR_ENTER(ctx, modctl, operation, argp);
+
+ if (operation == modctl_load) {
+ if (argp) {
+ __sanitizer_modctl_load_t *ml = (__sanitizer_modctl_load_t *)argp;
+ COMMON_INTERCEPTOR_READ_RANGE(ctx, ml, sizeof(*ml));
+ if (ml->ml_filename)
+ COMMON_INTERCEPTOR_READ_RANGE(ctx, ml->ml_filename,
+ REAL(strlen)(ml->ml_filename) + 1);
+ if (ml->ml_props)
+ COMMON_INTERCEPTOR_READ_RANGE(ctx, ml->ml_props, ml->ml_propslen);
+ }
+ ret = REAL(modctl)(operation, argp);
+ } else if (operation == modctl_unload) {
+ if (argp) {
+ const char *name = (const char *)argp;
+ COMMON_INTERCEPTOR_READ_RANGE(ctx, name, REAL(strlen)(name) + 1);
+ }
+ ret = REAL(modctl)(operation, argp);
+ } else if (operation == modctl_stat) {
+ uptr iov_len;
+ struct __sanitizer_iovec *iov = (struct __sanitizer_iovec *)argp;
+ if (iov) {
+ COMMON_INTERCEPTOR_READ_RANGE(ctx, iov, sizeof(*iov));
+ iov_len = iov->iov_len;
+ }
+ ret = REAL(modctl)(operation, argp);
+ if (iov)
+ COMMON_INTERCEPTOR_WRITE_RANGE(
+ ctx, iov->iov_base, Min(iov_len, iov->iov_len));
+ } else if (operation == modctl_exists)
+ ret = REAL(modctl)(operation, argp);
+ else
+ ret = REAL(modctl)(operation, argp);
+
+ return ret;
+}
+#define INIT_MODCTL COMMON_INTERCEPT_FUNCTION(modctl)
+#else
+#define INIT_MODCTL
+#endif
+
+#if SANITIZER_INTERCEPT_STRTONUM
+INTERCEPTOR(long long, strtonum, const char *nptr, long long minval,
+ long long maxval, const char **errstr) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, strtonum, nptr, minval, maxval, errstr);
+
+ // TODO(kamil): Implement strtoll as a common inteceptor
+ char *real_endptr;
+ long long ret = (long long)REAL(strtoimax)(nptr, &real_endptr, 10);
+ StrtolFixAndCheck(ctx, nptr, nullptr, real_endptr, 10);
+
+ ret = REAL(strtonum)(nptr, minval, maxval, errstr);
+ if (errstr) {
+ COMMON_INTERCEPTOR_WRITE_RANGE(ctx, errstr, sizeof(const char *));
+ if (*errstr)
+ COMMON_INTERCEPTOR_WRITE_RANGE(ctx, *errstr, REAL(strlen)(*errstr) + 1);
+ }
+ return ret;
+}
+#define INIT_STRTONUM COMMON_INTERCEPT_FUNCTION(strtonum)
+#else
+#define INIT_STRTONUM
+#endif
+
+#if SANITIZER_INTERCEPT_FPARSELN
+INTERCEPTOR(char *, fparseln, __sanitizer_FILE *stream, SIZE_T *len,
+ SIZE_T *lineno, const char delim[3], int flags) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, fparseln, stream, len, lineno, delim, flags);
+ if (lineno)
+ COMMON_INTERCEPTOR_READ_RANGE(ctx, lineno, sizeof(*lineno));
+ if (delim)
+ COMMON_INTERCEPTOR_READ_RANGE(ctx, delim, sizeof(delim[0]) * 3);
+ char *ret = REAL(fparseln)(stream, len, lineno, delim, flags);
+ if (ret) {
+ COMMON_INTERCEPTOR_WRITE_RANGE(ctx, ret, REAL(strlen)(ret) + 1);
+ if (len)
+ COMMON_INTERCEPTOR_WRITE_RANGE(ctx, len, sizeof(*len));
+ if (lineno)
+ COMMON_INTERCEPTOR_WRITE_RANGE(ctx, lineno, sizeof(*lineno));
+ }
+ return ret;
+}
+#define INIT_FPARSELN COMMON_INTERCEPT_FUNCTION(fparseln)
+#else
+#define INIT_FPARSELN
+#endif
+
+#if SANITIZER_INTERCEPT_STATVFS1
+INTERCEPTOR(int, statvfs1, const char *path, void *buf, int flags) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, statvfs1, path, buf, flags);
+ if (path) COMMON_INTERCEPTOR_READ_RANGE(ctx, path, REAL(strlen)(path) + 1);
+ int res = REAL(statvfs1)(path, buf, flags);
+ if (!res) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, buf, struct_statvfs_sz);
+ return res;
+}
+INTERCEPTOR(int, fstatvfs1, int fd, void *buf, int flags) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, fstatvfs1, fd, buf, flags);
+ COMMON_INTERCEPTOR_FD_ACCESS(ctx, fd);
+ int res = REAL(fstatvfs1)(fd, buf, flags);
+ if (!res) {
+ COMMON_INTERCEPTOR_WRITE_RANGE(ctx, buf, struct_statvfs_sz);
+ if (fd >= 0)
+ COMMON_INTERCEPTOR_FD_ACQUIRE(ctx, fd);
+ }
+ return res;
+}
+#define INIT_STATVFS1 \
+ COMMON_INTERCEPT_FUNCTION(statvfs1); \
+ COMMON_INTERCEPT_FUNCTION(fstatvfs1);
+#else
+#define INIT_STATVFS1
+#endif
+
+#if SANITIZER_INTERCEPT_STRTOI
+INTERCEPTOR(INTMAX_T, strtoi, const char *nptr, char **endptr, int base,
+ INTMAX_T low, INTMAX_T high, int *rstatus) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, strtoi, nptr, endptr, base, low, high, rstatus);
+ char *real_endptr;
+ INTMAX_T ret = REAL(strtoi)(nptr, &real_endptr, base, low, high, rstatus);
+ StrtolFixAndCheck(ctx, nptr, endptr, real_endptr, base);
+ if (rstatus)
+ COMMON_INTERCEPTOR_WRITE_RANGE(ctx, rstatus, sizeof(*rstatus));
+ return ret;
+}
+
+INTERCEPTOR(UINTMAX_T, strtou, const char *nptr, char **endptr, int base,
+ UINTMAX_T low, UINTMAX_T high, int *rstatus) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, strtou, nptr, endptr, base, low, high, rstatus);
+ char *real_endptr;
+ UINTMAX_T ret = REAL(strtou)(nptr, &real_endptr, base, low, high, rstatus);
+ StrtolFixAndCheck(ctx, nptr, endptr, real_endptr, base);
+ if (rstatus)
+ COMMON_INTERCEPTOR_WRITE_RANGE(ctx, rstatus, sizeof(*rstatus));
+ return ret;
+}
+#define INIT_STRTOI \
+ COMMON_INTERCEPT_FUNCTION(strtoi); \
+ COMMON_INTERCEPT_FUNCTION(strtou)
+#else
+#define INIT_STRTOI
+#endif
+
+#if SANITIZER_INTERCEPT_CAPSICUM
+#define CAP_RIGHTS_INIT_INTERCEPTOR(cap_rights_init, rights, ...) \
+ { \
+ void *ctx; \
+ COMMON_INTERCEPTOR_ENTER(ctx, cap_rights_init, rights, ##__VA_ARGS__); \
+ if (rights) \
+ COMMON_INTERCEPTOR_READ_RANGE(ctx, rights, sizeof(*rights)); \
+ __sanitizer_cap_rights_t *ret = \
+ REAL(cap_rights_init)(rights, ##__VA_ARGS__); \
+ if (ret) \
+ COMMON_INTERCEPTOR_WRITE_RANGE(ctx, ret, sizeof(*ret)); \
+ return ret; \
+ }
+
+#define CAP_RIGHTS_SET_INTERCEPTOR(cap_rights_set, rights, ...) \
+ { \
+ void *ctx; \
+ COMMON_INTERCEPTOR_ENTER(ctx, cap_rights_set, rights, ##__VA_ARGS__); \
+ if (rights) \
+ COMMON_INTERCEPTOR_READ_RANGE(ctx, rights, sizeof(*rights)); \
+ __sanitizer_cap_rights_t *ret = \
+ REAL(cap_rights_set)(rights, ##__VA_ARGS__); \
+ if (ret) \
+ COMMON_INTERCEPTOR_WRITE_RANGE(ctx, ret, sizeof(*ret)); \
+ return ret; \
+ }
+
+#define CAP_RIGHTS_CLEAR_INTERCEPTOR(cap_rights_clear, rights, ...) \
+ { \
+ void *ctx; \
+ COMMON_INTERCEPTOR_ENTER(ctx, cap_rights_clear, rights, ##__VA_ARGS__); \
+ if (rights) \
+ COMMON_INTERCEPTOR_READ_RANGE(ctx, rights, sizeof(*rights)); \
+ __sanitizer_cap_rights_t *ret = \
+ REAL(cap_rights_clear)(rights, ##__VA_ARGS__); \
+ if (ret) \
+ COMMON_INTERCEPTOR_WRITE_RANGE(ctx, ret, sizeof(*ret)); \
+ return ret; \
+ }
+
+#define CAP_RIGHTS_IS_SET_INTERCEPTOR(cap_rights_is_set, rights, ...) \
+ { \
+ void *ctx; \
+ COMMON_INTERCEPTOR_ENTER(ctx, cap_rights_is_set, rights, ##__VA_ARGS__); \
+ if (rights) \
+ COMMON_INTERCEPTOR_READ_RANGE(ctx, rights, sizeof(*rights)); \
+ return REAL(cap_rights_is_set)(rights, ##__VA_ARGS__); \
+ }
+
+INTERCEPTOR(__sanitizer_cap_rights_t *, cap_rights_init,
+ __sanitizer_cap_rights_t *rights) {
+ CAP_RIGHTS_INIT_INTERCEPTOR(cap_rights_init, rights);
+}
+
+INTERCEPTOR(__sanitizer_cap_rights_t *, cap_rights_set,
+ __sanitizer_cap_rights_t *rights) {
+ CAP_RIGHTS_SET_INTERCEPTOR(cap_rights_set, rights);
+}
+
+INTERCEPTOR(__sanitizer_cap_rights_t *, cap_rights_clear,
+ __sanitizer_cap_rights_t *rights) {
+ CAP_RIGHTS_CLEAR_INTERCEPTOR(cap_rights_clear, rights);
+}
+
+INTERCEPTOR(bool, cap_rights_is_set,
+ __sanitizer_cap_rights_t *rights) {
+ CAP_RIGHTS_IS_SET_INTERCEPTOR(cap_rights_is_set, rights);
+}
+
+INTERCEPTOR(int, cap_rights_limit, int fd,
+ const __sanitizer_cap_rights_t *rights) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, cap_rights_limit, fd, rights);
+ if (rights)
+ COMMON_INTERCEPTOR_READ_RANGE(ctx, rights, sizeof(*rights));
+
+ return REAL(cap_rights_limit)(fd, rights);
+}
+
+INTERCEPTOR(int, cap_rights_get, int fd, __sanitizer_cap_rights_t *rights) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, cap_rights_get, fd, rights);
+ int ret = REAL(cap_rights_get)(fd, rights);
+ if (!ret && rights)
+ COMMON_INTERCEPTOR_WRITE_RANGE(ctx, rights, sizeof(*rights));
+
+ return ret;
+}
+
+INTERCEPTOR(bool, cap_rights_is_valid, const __sanitizer_cap_rights_t *rights) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, cap_rights_is_valid, rights);
+ if (rights)
+ COMMON_INTERCEPTOR_READ_RANGE(ctx, rights, sizeof(*rights));
+
+ return REAL(cap_rights_is_valid(rights));
+}
+
+INTERCEPTOR(__sanitizer_cap_rights *, cap_rights_merge,
+ __sanitizer_cap_rights *dst, const __sanitizer_cap_rights *src) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, cap_rights_merge, dst, src);
+ if (src)
+ COMMON_INTERCEPTOR_READ_RANGE(ctx, src, sizeof(*src));
+
+ __sanitizer_cap_rights *ret = REAL(cap_rights_merge)(dst, src);
+ if (dst)
+ COMMON_INTERCEPTOR_WRITE_RANGE(ctx, dst, sizeof(*dst));
+
+ return ret;
+}
+
+INTERCEPTOR(__sanitizer_cap_rights *, cap_rights_remove,
+ __sanitizer_cap_rights *dst, const __sanitizer_cap_rights *src) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, cap_rights_remove, dst, src);
+ if (src)
+ COMMON_INTERCEPTOR_READ_RANGE(ctx, src, sizeof(*src));
+
+ __sanitizer_cap_rights *ret = REAL(cap_rights_remove)(dst, src);
+ if (dst)
+ COMMON_INTERCEPTOR_WRITE_RANGE(ctx, dst, sizeof(*dst));
+
+ return ret;
+}
+
+INTERCEPTOR(bool, cap_rights_contains, const __sanitizer_cap_rights *big,
+ const __sanitizer_cap_rights *little) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, cap_rights_contains, big, little);
+ if (little)
+ COMMON_INTERCEPTOR_READ_RANGE(ctx, little, sizeof(*little));
+ if (big)
+ COMMON_INTERCEPTOR_READ_RANGE(ctx, big, sizeof(*big));
+
+ return REAL(cap_rights_contains)(big, little);
+}
+
+INTERCEPTOR(int, cap_ioctls_limit, int fd, const uptr *cmds, SIZE_T ncmds) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, cap_ioctls_limit, fd, cmds, ncmds);
+ if (cmds)
+ COMMON_INTERCEPTOR_READ_RANGE(ctx, cmds, sizeof(*cmds) * ncmds);
+
+ return REAL(cap_ioctls_limit)(fd, cmds, ncmds);
+}
+
+INTERCEPTOR(int, cap_ioctls_get, int fd, uptr *cmds, SIZE_T maxcmds) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, cap_ioctls_get, fd, cmds, maxcmds);
+ int ret = REAL(cap_ioctls_get)(fd, cmds, maxcmds);
+ if (!ret && cmds)
+ COMMON_INTERCEPTOR_WRITE_RANGE(ctx, cmds, sizeof(*cmds) * maxcmds);
+
+ return ret;
+}
+#define INIT_CAPSICUM \
+ COMMON_INTERCEPT_FUNCTION(cap_rights_init); \
+ COMMON_INTERCEPT_FUNCTION(cap_rights_set); \
+ COMMON_INTERCEPT_FUNCTION(cap_rights_clear); \
+ COMMON_INTERCEPT_FUNCTION(cap_rights_is_set); \
+ COMMON_INTERCEPT_FUNCTION(cap_rights_get); \
+ COMMON_INTERCEPT_FUNCTION(cap_rights_limit); \
+ COMMON_INTERCEPT_FUNCTION(cap_rights_contains); \
+ COMMON_INTERCEPT_FUNCTION(cap_rights_remove); \
+ COMMON_INTERCEPT_FUNCTION(cap_rights_merge); \
+ COMMON_INTERCEPT_FUNCTION(cap_rights_is_valid); \
+ COMMON_INTERCEPT_FUNCTION(cap_ioctls_get); \
+ COMMON_INTERCEPT_FUNCTION(cap_ioctls_limit)
+#else
+#define INIT_CAPSICUM
+#endif
+
+#if SANITIZER_INTERCEPT_SHA1
+INTERCEPTOR(void, SHA1Init, void *context) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, SHA1Init, context);
+ REAL(SHA1Init)(context);
+ if (context)
+ COMMON_INTERCEPTOR_WRITE_RANGE(ctx, context, SHA1_CTX_sz);
+}
+INTERCEPTOR(void, SHA1Update, void *context, const u8 *data, unsigned len) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, SHA1Update, context, data, len);
+ if (data && len > 0)
+ COMMON_INTERCEPTOR_READ_RANGE(ctx, data, len);
+ if (context)
+ COMMON_INTERCEPTOR_READ_RANGE(ctx, context, SHA1_CTX_sz);
+ REAL(SHA1Update)(context, data, len);
+ if (context)
+ COMMON_INTERCEPTOR_WRITE_RANGE(ctx, context, SHA1_CTX_sz);
+}
+INTERCEPTOR(void, SHA1Final, u8 digest[20], void *context) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, SHA1Final, digest, context);
+ if (context)
+ COMMON_INTERCEPTOR_READ_RANGE(ctx, context, SHA1_CTX_sz);
+ REAL(SHA1Final)(digest, context);
+ if (digest)
+ COMMON_INTERCEPTOR_WRITE_RANGE(ctx, digest, sizeof(u8) * 20);
+}
+INTERCEPTOR(void, SHA1Transform, u32 state[5], u8 buffer[64]) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, SHA1Transform, state, buffer);
+ if (state)
+ COMMON_INTERCEPTOR_READ_RANGE(ctx, state, sizeof(u32) * 5);
+ if (buffer)
+ COMMON_INTERCEPTOR_READ_RANGE(ctx, buffer, sizeof(u8) * 64);
+ REAL(SHA1Transform)(state, buffer);
+ if (state)
+ COMMON_INTERCEPTOR_WRITE_RANGE(ctx, state, sizeof(u32) * 5);
+}
+INTERCEPTOR(char *, SHA1End, void *context, char *buf) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, SHA1End, context, buf);
+ if (context)
+ COMMON_INTERCEPTOR_READ_RANGE(ctx, context, SHA1_CTX_sz);
+ char *ret = REAL(SHA1End)(context, buf);
+ if (ret)
+ COMMON_INTERCEPTOR_WRITE_RANGE(ctx, ret, SHA1_return_length);
+ return ret;
+}
+INTERCEPTOR(char *, SHA1File, char *filename, char *buf) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, SHA1File, filename, buf);
+ if (filename)
+ COMMON_INTERCEPTOR_READ_RANGE(ctx, filename, REAL(strlen)(filename) + 1);
+ char *ret = REAL(SHA1File)(filename, buf);
+ if (ret)
+ COMMON_INTERCEPTOR_WRITE_RANGE(ctx, ret, SHA1_return_length);
+ return ret;
+}
+INTERCEPTOR(char *, SHA1FileChunk, char *filename, char *buf, OFF_T offset,
+ OFF_T length) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, SHA1FileChunk, filename, buf, offset, length);
+ if (filename)
+ COMMON_INTERCEPTOR_READ_RANGE(ctx, filename, REAL(strlen)(filename) + 1);
+ char *ret = REAL(SHA1FileChunk)(filename, buf, offset, length);
+ if (ret)
+ COMMON_INTERCEPTOR_WRITE_RANGE(ctx, ret, SHA1_return_length);
+ return ret;
+}
+INTERCEPTOR(char *, SHA1Data, u8 *data, SIZE_T len, char *buf) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, SHA1Data, data, len, buf);
+ if (data)
+ COMMON_INTERCEPTOR_READ_RANGE(ctx, data, len);
+ char *ret = REAL(SHA1Data)(data, len, buf);
+ if (ret)
+ COMMON_INTERCEPTOR_WRITE_RANGE(ctx, ret, SHA1_return_length);
+ return ret;
+}
+#define INIT_SHA1 \
+ COMMON_INTERCEPT_FUNCTION(SHA1Init); \
+ COMMON_INTERCEPT_FUNCTION(SHA1Update); \
+ COMMON_INTERCEPT_FUNCTION(SHA1Final); \
+ COMMON_INTERCEPT_FUNCTION(SHA1Transform); \
+ COMMON_INTERCEPT_FUNCTION(SHA1End); \
+ COMMON_INTERCEPT_FUNCTION(SHA1File); \
+ COMMON_INTERCEPT_FUNCTION(SHA1FileChunk); \
+ COMMON_INTERCEPT_FUNCTION(SHA1Data)
+#else
+#define INIT_SHA1
+#endif
+
+#if SANITIZER_INTERCEPT_MD4
+INTERCEPTOR(void, MD4Init, void *context) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, MD4Init, context);
+ REAL(MD4Init)(context);
+ if (context)
+ COMMON_INTERCEPTOR_WRITE_RANGE(ctx, context, MD4_CTX_sz);
+}
+
+INTERCEPTOR(void, MD4Update, void *context, const unsigned char *data,
+ unsigned int len) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, MD4Update, context, data, len);
+ if (data && len > 0)
+ COMMON_INTERCEPTOR_READ_RANGE(ctx, data, len);
+ if (context)
+ COMMON_INTERCEPTOR_READ_RANGE(ctx, context, MD4_CTX_sz);
+ REAL(MD4Update)(context, data, len);
+ if (context)
+ COMMON_INTERCEPTOR_WRITE_RANGE(ctx, context, MD4_CTX_sz);
+}
+
+INTERCEPTOR(void, MD4Final, unsigned char digest[16], void *context) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, MD4Final, digest, context);
+ if (context)
+ COMMON_INTERCEPTOR_READ_RANGE(ctx, context, MD4_CTX_sz);
+ REAL(MD4Final)(digest, context);
+ if (digest)
+ COMMON_INTERCEPTOR_WRITE_RANGE(ctx, digest, sizeof(unsigned char) * 16);
+}
+
+INTERCEPTOR(char *, MD4End, void *context, char *buf) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, MD4End, context, buf);
+ if (context)
+ COMMON_INTERCEPTOR_READ_RANGE(ctx, context, MD4_CTX_sz);
+ char *ret = REAL(MD4End)(context, buf);
+ if (ret)
+ COMMON_INTERCEPTOR_WRITE_RANGE(ctx, ret, MD4_return_length);
+ return ret;
+}
+
+INTERCEPTOR(char *, MD4File, const char *filename, char *buf) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, MD4File, filename, buf);
+ if (filename)
+ COMMON_INTERCEPTOR_READ_RANGE(ctx, filename, REAL(strlen)(filename) + 1);
+ char *ret = REAL(MD4File)(filename, buf);
+ if (ret)
+ COMMON_INTERCEPTOR_WRITE_RANGE(ctx, ret, MD4_return_length);
+ return ret;
+}
+
+INTERCEPTOR(char *, MD4Data, const unsigned char *data, unsigned int len,
+ char *buf) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, MD4Data, data, len, buf);
+ if (data && len > 0)
+ COMMON_INTERCEPTOR_READ_RANGE(ctx, data, len);
+ char *ret = REAL(MD4Data)(data, len, buf);
+ if (ret)
+ COMMON_INTERCEPTOR_WRITE_RANGE(ctx, ret, MD4_return_length);
+ return ret;
+}
+
+#define INIT_MD4 \
+ COMMON_INTERCEPT_FUNCTION(MD4Init); \
+ COMMON_INTERCEPT_FUNCTION(MD4Update); \
+ COMMON_INTERCEPT_FUNCTION(MD4Final); \
+ COMMON_INTERCEPT_FUNCTION(MD4End); \
+ COMMON_INTERCEPT_FUNCTION(MD4File); \
+ COMMON_INTERCEPT_FUNCTION(MD4Data)
+#else
+#define INIT_MD4
+#endif
+
+#if SANITIZER_INTERCEPT_RMD160
+INTERCEPTOR(void, RMD160Init, void *context) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, RMD160Init, context);
+ REAL(RMD160Init)(context);
+ if (context)
+ COMMON_INTERCEPTOR_WRITE_RANGE(ctx, context, RMD160_CTX_sz);
+}
+INTERCEPTOR(void, RMD160Update, void *context, const u8 *data, unsigned len) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, RMD160Update, context, data, len);
+ if (data && len > 0)
+ COMMON_INTERCEPTOR_READ_RANGE(ctx, data, len);
+ if (context)
+ COMMON_INTERCEPTOR_READ_RANGE(ctx, context, RMD160_CTX_sz);
+ REAL(RMD160Update)(context, data, len);
+ if (context)
+ COMMON_INTERCEPTOR_WRITE_RANGE(ctx, context, RMD160_CTX_sz);
+}
+INTERCEPTOR(void, RMD160Final, u8 digest[20], void *context) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, RMD160Final, digest, context);
+ if (context)
+ COMMON_INTERCEPTOR_READ_RANGE(ctx, context, RMD160_CTX_sz);
+ REAL(RMD160Final)(digest, context);
+ if (digest)
+ COMMON_INTERCEPTOR_WRITE_RANGE(ctx, digest, sizeof(u8) * 20);
+}
+INTERCEPTOR(void, RMD160Transform, u32 state[5], u16 buffer[16]) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, RMD160Transform, state, buffer);
+ if (state)
+ COMMON_INTERCEPTOR_READ_RANGE(ctx, state, sizeof(u32) * 5);
+ if (buffer)
+ COMMON_INTERCEPTOR_READ_RANGE(ctx, buffer, sizeof(u32) * 16);
+ REAL(RMD160Transform)(state, buffer);
+ if (state)
+ COMMON_INTERCEPTOR_WRITE_RANGE(ctx, state, sizeof(u32) * 5);
+}
+INTERCEPTOR(char *, RMD160End, void *context, char *buf) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, RMD160End, context, buf);
+ if (context)
+ COMMON_INTERCEPTOR_READ_RANGE(ctx, context, RMD160_CTX_sz);
+ char *ret = REAL(RMD160End)(context, buf);
+ if (ret)
+ COMMON_INTERCEPTOR_WRITE_RANGE(ctx, ret, RMD160_return_length);
+ return ret;
+}
+INTERCEPTOR(char *, RMD160File, char *filename, char *buf) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, RMD160File, filename, buf);
+ if (filename)
+ COMMON_INTERCEPTOR_READ_RANGE(ctx, filename, REAL(strlen)(filename) + 1);
+ char *ret = REAL(RMD160File)(filename, buf);
+ if (ret)
+ COMMON_INTERCEPTOR_WRITE_RANGE(ctx, ret, RMD160_return_length);
+ return ret;
+}
+INTERCEPTOR(char *, RMD160FileChunk, char *filename, char *buf, OFF_T offset,
+ OFF_T length) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, RMD160FileChunk, filename, buf, offset, length);
+ if (filename)
+ COMMON_INTERCEPTOR_READ_RANGE(ctx, filename, REAL(strlen)(filename) + 1);
+ char *ret = REAL(RMD160FileChunk)(filename, buf, offset, length);
+ if (ret)
+ COMMON_INTERCEPTOR_WRITE_RANGE(ctx, ret, RMD160_return_length);
+ return ret;
+}
+INTERCEPTOR(char *, RMD160Data, u8 *data, SIZE_T len, char *buf) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, RMD160Data, data, len, buf);
+ if (data && len > 0)
+ COMMON_INTERCEPTOR_READ_RANGE(ctx, data, len);
+ char *ret = REAL(RMD160Data)(data, len, buf);
+ if (ret)
+ COMMON_INTERCEPTOR_WRITE_RANGE(ctx, ret, RMD160_return_length);
+ return ret;
+}
+#define INIT_RMD160 \
+ COMMON_INTERCEPT_FUNCTION(RMD160Init); \
+ COMMON_INTERCEPT_FUNCTION(RMD160Update); \
+ COMMON_INTERCEPT_FUNCTION(RMD160Final); \
+ COMMON_INTERCEPT_FUNCTION(RMD160Transform); \
+ COMMON_INTERCEPT_FUNCTION(RMD160End); \
+ COMMON_INTERCEPT_FUNCTION(RMD160File); \
+ COMMON_INTERCEPT_FUNCTION(RMD160FileChunk); \
+ COMMON_INTERCEPT_FUNCTION(RMD160Data)
+#else
+#define INIT_RMD160
+#endif
+
+#if SANITIZER_INTERCEPT_MD5
+INTERCEPTOR(void, MD5Init, void *context) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, MD5Init, context);
+ REAL(MD5Init)(context);
+ if (context)
+ COMMON_INTERCEPTOR_WRITE_RANGE(ctx, context, MD5_CTX_sz);
+}
+
+INTERCEPTOR(void, MD5Update, void *context, const unsigned char *data,
+ unsigned int len) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, MD5Update, context, data, len);
+ if (data && len > 0)
+ COMMON_INTERCEPTOR_READ_RANGE(ctx, data, len);
+ if (context)
+ COMMON_INTERCEPTOR_READ_RANGE(ctx, context, MD5_CTX_sz);
+ REAL(MD5Update)(context, data, len);
+ if (context)
+ COMMON_INTERCEPTOR_WRITE_RANGE(ctx, context, MD5_CTX_sz);
+}
+
+INTERCEPTOR(void, MD5Final, unsigned char digest[16], void *context) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, MD5Final, digest, context);
+ if (context)
+ COMMON_INTERCEPTOR_READ_RANGE(ctx, context, MD5_CTX_sz);
+ REAL(MD5Final)(digest, context);
+ if (digest)
+ COMMON_INTERCEPTOR_WRITE_RANGE(ctx, digest, sizeof(unsigned char) * 16);
+}
+
+INTERCEPTOR(char *, MD5End, void *context, char *buf) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, MD5End, context, buf);
+ if (context)
+ COMMON_INTERCEPTOR_READ_RANGE(ctx, context, MD5_CTX_sz);
+ char *ret = REAL(MD5End)(context, buf);
+ if (ret)
+ COMMON_INTERCEPTOR_WRITE_RANGE(ctx, ret, MD5_return_length);
+ return ret;
+}
+
+INTERCEPTOR(char *, MD5File, const char *filename, char *buf) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, MD5File, filename, buf);
+ if (filename)
+ COMMON_INTERCEPTOR_READ_RANGE(ctx, filename, REAL(strlen)(filename) + 1);
+ char *ret = REAL(MD5File)(filename, buf);
+ if (ret)
+ COMMON_INTERCEPTOR_WRITE_RANGE(ctx, ret, MD5_return_length);
+ return ret;
+}
+
+INTERCEPTOR(char *, MD5Data, const unsigned char *data, unsigned int len,
+ char *buf) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, MD5Data, data, len, buf);
+ if (data && len > 0)
+ COMMON_INTERCEPTOR_READ_RANGE(ctx, data, len);
+ char *ret = REAL(MD5Data)(data, len, buf);
+ if (ret)
+ COMMON_INTERCEPTOR_WRITE_RANGE(ctx, ret, MD5_return_length);
+ return ret;
+}
+
+#define INIT_MD5 \
+ COMMON_INTERCEPT_FUNCTION(MD5Init); \
+ COMMON_INTERCEPT_FUNCTION(MD5Update); \
+ COMMON_INTERCEPT_FUNCTION(MD5Final); \
+ COMMON_INTERCEPT_FUNCTION(MD5End); \
+ COMMON_INTERCEPT_FUNCTION(MD5File); \
+ COMMON_INTERCEPT_FUNCTION(MD5Data)
+#else
+#define INIT_MD5
+#endif
+
+#if SANITIZER_INTERCEPT_FSEEK
+INTERCEPTOR(int, fseek, __sanitizer_FILE *stream, long int offset, int whence) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, fseek, stream, offset, whence);
+ return REAL(fseek)(stream, offset, whence);
+}
+INTERCEPTOR(int, fseeko, __sanitizer_FILE *stream, OFF_T offset, int whence) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, fseeko, stream, offset, whence);
+ return REAL(fseeko)(stream, offset, whence);
+}
+INTERCEPTOR(long int, ftell, __sanitizer_FILE *stream) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, ftell, stream);
+ return REAL(ftell)(stream);
+}
+INTERCEPTOR(OFF_T, ftello, __sanitizer_FILE *stream) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, ftello, stream);
+ return REAL(ftello)(stream);
+}
+INTERCEPTOR(void, rewind, __sanitizer_FILE *stream) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, rewind, stream);
+ return REAL(rewind)(stream);
+}
+INTERCEPTOR(int, fgetpos, __sanitizer_FILE *stream, void *pos) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, fgetpos, stream, pos);
+ int ret = REAL(fgetpos)(stream, pos);
+ if (pos && !ret)
+ COMMON_INTERCEPTOR_WRITE_RANGE(ctx, pos, fpos_t_sz);
+ return ret;
+}
+INTERCEPTOR(int, fsetpos, __sanitizer_FILE *stream, const void *pos) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, fsetpos, stream, pos);
+ if (pos)
+ COMMON_INTERCEPTOR_READ_RANGE(ctx, pos, fpos_t_sz);
+ return REAL(fsetpos)(stream, pos);
+}
+#define INIT_FSEEK \
+ COMMON_INTERCEPT_FUNCTION(fseek); \
+ COMMON_INTERCEPT_FUNCTION(fseeko); \
+ COMMON_INTERCEPT_FUNCTION(ftell); \
+ COMMON_INTERCEPT_FUNCTION(ftello); \
+ COMMON_INTERCEPT_FUNCTION(rewind); \
+ COMMON_INTERCEPT_FUNCTION(fgetpos); \
+ COMMON_INTERCEPT_FUNCTION(fsetpos)
+#else
+#define INIT_FSEEK
+#endif
+
+#if SANITIZER_INTERCEPT_MD2
+INTERCEPTOR(void, MD2Init, void *context) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, MD2Init, context);
+ REAL(MD2Init)(context);
+ if (context)
+ COMMON_INTERCEPTOR_WRITE_RANGE(ctx, context, MD2_CTX_sz);
+}
+
+INTERCEPTOR(void, MD2Update, void *context, const unsigned char *data,
+ unsigned int len) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, MD2Update, context, data, len);
+ if (data && len > 0)
+ COMMON_INTERCEPTOR_READ_RANGE(ctx, data, len);
+ if (context)
+ COMMON_INTERCEPTOR_READ_RANGE(ctx, context, MD2_CTX_sz);
+ REAL(MD2Update)(context, data, len);
+ if (context)
+ COMMON_INTERCEPTOR_WRITE_RANGE(ctx, context, MD2_CTX_sz);
+}
+
+INTERCEPTOR(void, MD2Final, unsigned char digest[16], void *context) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, MD2Final, digest, context);
+ if (context)
+ COMMON_INTERCEPTOR_READ_RANGE(ctx, context, MD2_CTX_sz);
+ REAL(MD2Final)(digest, context);
+ if (digest)
+ COMMON_INTERCEPTOR_WRITE_RANGE(ctx, digest, sizeof(unsigned char) * 16);
+}
+
+INTERCEPTOR(char *, MD2End, void *context, char *buf) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, MD2End, context, buf);
+ if (context)
+ COMMON_INTERCEPTOR_READ_RANGE(ctx, context, MD2_CTX_sz);
+ char *ret = REAL(MD2End)(context, buf);
+ if (ret)
+ COMMON_INTERCEPTOR_WRITE_RANGE(ctx, ret, MD2_return_length);
+ return ret;
+}
+
+INTERCEPTOR(char *, MD2File, const char *filename, char *buf) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, MD2File, filename, buf);
+ if (filename)
+ COMMON_INTERCEPTOR_READ_RANGE(ctx, filename, REAL(strlen)(filename) + 1);
+ char *ret = REAL(MD2File)(filename, buf);
+ if (ret)
+ COMMON_INTERCEPTOR_WRITE_RANGE(ctx, ret, MD2_return_length);
+ return ret;
+}
+
+INTERCEPTOR(char *, MD2Data, const unsigned char *data, unsigned int len,
+ char *buf) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, MD2Data, data, len, buf);
+ if (data && len > 0)
+ COMMON_INTERCEPTOR_READ_RANGE(ctx, data, len);
+ char *ret = REAL(MD2Data)(data, len, buf);
+ if (ret)
+ COMMON_INTERCEPTOR_WRITE_RANGE(ctx, ret, MD2_return_length);
+ return ret;
+}
+
+#define INIT_MD2 \
+ COMMON_INTERCEPT_FUNCTION(MD2Init); \
+ COMMON_INTERCEPT_FUNCTION(MD2Update); \
+ COMMON_INTERCEPT_FUNCTION(MD2Final); \
+ COMMON_INTERCEPT_FUNCTION(MD2End); \
+ COMMON_INTERCEPT_FUNCTION(MD2File); \
+ COMMON_INTERCEPT_FUNCTION(MD2Data)
+#else
+#define INIT_MD2
+#endif
+
+#if SANITIZER_INTERCEPT_SHA2
+#define SHA2_INTERCEPTORS(LEN, SHA2_STATE_T) \
+ INTERCEPTOR(void, SHA##LEN##_Init, void *context) { \
+ void *ctx; \
+ COMMON_INTERCEPTOR_ENTER(ctx, SHA##LEN##_Init, context); \
+ REAL(SHA##LEN##_Init)(context); \
+ if (context) \
+ COMMON_INTERCEPTOR_WRITE_RANGE(ctx, context, SHA##LEN##_CTX_sz); \
+ } \
+ INTERCEPTOR(void, SHA##LEN##_Update, void *context, \
+ const u8 *data, SIZE_T len) { \
+ void *ctx; \
+ COMMON_INTERCEPTOR_ENTER(ctx, SHA##LEN##_Update, context, data, len); \
+ if (data && len > 0) \
+ COMMON_INTERCEPTOR_READ_RANGE(ctx, data, len); \
+ if (context) \
+ COMMON_INTERCEPTOR_READ_RANGE(ctx, context, SHA##LEN##_CTX_sz); \
+ REAL(SHA##LEN##_Update)(context, data, len); \
+ if (context) \
+ COMMON_INTERCEPTOR_WRITE_RANGE(ctx, context, SHA##LEN##_CTX_sz); \
+ } \
+ INTERCEPTOR(void, SHA##LEN##_Final, u8 digest[LEN/8], \
+ void *context) { \
+ void *ctx; \
+ CHECK_EQ(SHA##LEN##_digest_length, LEN/8); \
+ COMMON_INTERCEPTOR_ENTER(ctx, SHA##LEN##_Final, digest, context); \
+ if (context) \
+ COMMON_INTERCEPTOR_READ_RANGE(ctx, context, SHA##LEN##_CTX_sz); \
+ REAL(SHA##LEN##_Final)(digest, context); \
+ if (digest) \
+ COMMON_INTERCEPTOR_WRITE_RANGE(ctx, digest, \
+ sizeof(digest[0]) * \
+ SHA##LEN##_digest_length); \
+ } \
+ INTERCEPTOR(char *, SHA##LEN##_End, void *context, char *buf) { \
+ void *ctx; \
+ COMMON_INTERCEPTOR_ENTER(ctx, SHA##LEN##_End, context, buf); \
+ if (context) \
+ COMMON_INTERCEPTOR_READ_RANGE(ctx, context, SHA##LEN##_CTX_sz); \
+ char *ret = REAL(SHA##LEN##_End)(context, buf); \
+ if (ret) \
+ COMMON_INTERCEPTOR_WRITE_RANGE(ctx, ret, SHA##LEN##_return_length); \
+ return ret; \
+ } \
+ INTERCEPTOR(char *, SHA##LEN##_File, const char *filename, char *buf) { \
+ void *ctx; \
+ COMMON_INTERCEPTOR_ENTER(ctx, SHA##LEN##_File, filename, buf); \
+ if (filename) \
+ COMMON_INTERCEPTOR_READ_RANGE(ctx, filename, REAL(strlen)(filename) + 1);\
+ char *ret = REAL(SHA##LEN##_File)(filename, buf); \
+ if (ret) \
+ COMMON_INTERCEPTOR_WRITE_RANGE(ctx, ret, SHA##LEN##_return_length); \
+ return ret; \
+ } \
+ INTERCEPTOR(char *, SHA##LEN##_FileChunk, const char *filename, char *buf, \
+ OFF_T offset, OFF_T length) { \
+ void *ctx; \
+ COMMON_INTERCEPTOR_ENTER(ctx, SHA##LEN##_FileChunk, filename, buf, offset, \
+ length); \
+ if (filename) \
+ COMMON_INTERCEPTOR_READ_RANGE(ctx, filename, REAL(strlen)(filename) + 1);\
+ char *ret = REAL(SHA##LEN##_FileChunk)(filename, buf, offset, length); \
+ if (ret) \
+ COMMON_INTERCEPTOR_WRITE_RANGE(ctx, ret, SHA##LEN##_return_length); \
+ return ret; \
+ } \
+ INTERCEPTOR(char *, SHA##LEN##_Data, u8 *data, SIZE_T len, char *buf) { \
+ void *ctx; \
+ COMMON_INTERCEPTOR_ENTER(ctx, SHA##LEN##_Data, data, len, buf); \
+ if (data && len > 0) \
+ COMMON_INTERCEPTOR_READ_RANGE(ctx, data, len); \
+ char *ret = REAL(SHA##LEN##_Data)(data, len, buf); \
+ if (ret) \
+ COMMON_INTERCEPTOR_WRITE_RANGE(ctx, ret, SHA##LEN##_return_length); \
+ return ret; \
+ }
+
+SHA2_INTERCEPTORS(224, u32);
+SHA2_INTERCEPTORS(256, u32);
+SHA2_INTERCEPTORS(384, u64);
+SHA2_INTERCEPTORS(512, u64);
+
+#define INIT_SHA2_INTECEPTORS(LEN) \
+ COMMON_INTERCEPT_FUNCTION(SHA##LEN##_Init); \
+ COMMON_INTERCEPT_FUNCTION(SHA##LEN##_Update); \
+ COMMON_INTERCEPT_FUNCTION(SHA##LEN##_Final); \
+ COMMON_INTERCEPT_FUNCTION(SHA##LEN##_End); \
+ COMMON_INTERCEPT_FUNCTION(SHA##LEN##_File); \
+ COMMON_INTERCEPT_FUNCTION(SHA##LEN##_FileChunk); \
+ COMMON_INTERCEPT_FUNCTION(SHA##LEN##_Data)
+
+#define INIT_SHA2 \
+ INIT_SHA2_INTECEPTORS(224); \
+ INIT_SHA2_INTECEPTORS(256); \
+ INIT_SHA2_INTECEPTORS(384); \
+ INIT_SHA2_INTECEPTORS(512)
+#undef SHA2_INTERCEPTORS
+#else
+#define INIT_SHA2
+#endif
+
+#if SANITIZER_INTERCEPT_VIS
+INTERCEPTOR(char *, vis, char *dst, int c, int flag, int nextc) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, vis, dst, c, flag, nextc);
+ char *end = REAL(vis)(dst, c, flag, nextc);
+ // dst is NULL terminated and end points to the NULL char
+ if (dst && end)
+ COMMON_INTERCEPTOR_WRITE_RANGE(ctx, dst, end - dst + 1);
+ return end;
+}
+INTERCEPTOR(char *, nvis, char *dst, SIZE_T dlen, int c, int flag, int nextc) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, nvis, dst, dlen, c, flag, nextc);
+ char *end = REAL(nvis)(dst, dlen, c, flag, nextc);
+ // nvis cannot make sure the dst is NULL terminated
+ if (dst && end)
+ COMMON_INTERCEPTOR_WRITE_RANGE(ctx, dst, end - dst + 1);
+ return end;
+}
+INTERCEPTOR(int, strvis, char *dst, const char *src, int flag) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, strvis, dst, src, flag);
+ if (src)
+ COMMON_INTERCEPTOR_READ_RANGE(ctx, src, REAL(strlen)(src) + 1);
+ int len = REAL(strvis)(dst, src, flag);
+ if (dst)
+ COMMON_INTERCEPTOR_WRITE_RANGE(ctx, dst, len + 1);
+ return len;
+}
+INTERCEPTOR(int, stravis, char **dst, const char *src, int flag) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, stravis, dst, src, flag);
+ if (src)
+ COMMON_INTERCEPTOR_READ_RANGE(ctx, src, REAL(strlen)(src) + 1);
+ int len = REAL(stravis)(dst, src, flag);
+ if (dst) {
+ COMMON_INTERCEPTOR_WRITE_RANGE(ctx, dst, sizeof(char *));
+ if (*dst)
+ COMMON_INTERCEPTOR_WRITE_RANGE(ctx, *dst, len + 1);
+ }
+ return len;
+}
+INTERCEPTOR(int, strnvis, char *dst, SIZE_T dlen, const char *src, int flag) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, strnvis, dst, dlen, src, flag);
+ if (src)
+ COMMON_INTERCEPTOR_READ_RANGE(ctx, src, REAL(strlen)(src) + 1);
+ int len = REAL(strnvis)(dst, dlen, src, flag);
+ // The interface will be valid even if there is no space for NULL char
+ if (dst && len > 0)
+ COMMON_INTERCEPTOR_WRITE_RANGE(ctx, dst, len + 1);
+ return len;
+}
+INTERCEPTOR(int, strvisx, char *dst, const char *src, SIZE_T len, int flag) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, strvisx, dst, src, len, flag);
+ if (src)
+ COMMON_INTERCEPTOR_READ_RANGE(ctx, src, len);
+ int ret = REAL(strvisx)(dst, src, len, flag);
+ if (dst)
+ COMMON_INTERCEPTOR_WRITE_RANGE(ctx, dst, ret + 1);
+ return ret;
+}
+INTERCEPTOR(int, strnvisx, char *dst, SIZE_T dlen, const char *src, SIZE_T len,
+ int flag) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, strnvisx, dst, dlen, src, len, flag);
+ if (src)
+ COMMON_INTERCEPTOR_READ_RANGE(ctx, src, len);
+ int ret = REAL(strnvisx)(dst, dlen, src, len, flag);
+ if (dst && ret >= 0)
+ COMMON_INTERCEPTOR_WRITE_RANGE(ctx, dst, ret + 1);
+ return ret;
+}
+INTERCEPTOR(int, strenvisx, char *dst, SIZE_T dlen, const char *src, SIZE_T len,
+ int flag, int *cerr_ptr) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, strenvisx, dst, dlen, src, len, flag, cerr_ptr);
+ if (src)
+ COMMON_INTERCEPTOR_READ_RANGE(ctx, src, len);
+ // FIXME: only need to be checked when "flag | VIS_NOLOCALE" doesn't hold
+ // according to the implementation
+ if (cerr_ptr)
+ COMMON_INTERCEPTOR_READ_RANGE(ctx, cerr_ptr, sizeof(int));
+ int ret = REAL(strenvisx)(dst, dlen, src, len, flag, cerr_ptr);
+ if (dst && ret >= 0)
+ COMMON_INTERCEPTOR_WRITE_RANGE(ctx, dst, ret + 1);
+ if (cerr_ptr)
+ COMMON_INTERCEPTOR_WRITE_RANGE(ctx, cerr_ptr, sizeof(int));
+ return ret;
+}
+INTERCEPTOR(char *, svis, char *dst, int c, int flag, int nextc,
+ const char *extra) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, svis, dst, c, flag, nextc, extra);
+ if (extra)
+ COMMON_INTERCEPTOR_READ_RANGE(ctx, extra, REAL(strlen)(extra) + 1);
+ char *end = REAL(svis)(dst, c, flag, nextc, extra);
+ if (dst && end)
+ COMMON_INTERCEPTOR_WRITE_RANGE(ctx, dst, end - dst + 1);
+ return end;
+}
+INTERCEPTOR(char *, snvis, char *dst, SIZE_T dlen, int c, int flag, int nextc,
+ const char *extra) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, snvis, dst, dlen, c, flag, nextc, extra);
+ if (extra)
+ COMMON_INTERCEPTOR_READ_RANGE(ctx, extra, REAL(strlen)(extra) + 1);
+ char *end = REAL(snvis)(dst, dlen, c, flag, nextc, extra);
+ if (dst && end)
+ COMMON_INTERCEPTOR_WRITE_RANGE(ctx, dst,
+ Min((SIZE_T)(end - dst + 1), dlen));
+ return end;
+}
+INTERCEPTOR(int, strsvis, char *dst, const char *src, int flag,
+ const char *extra) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, strsvis, dst, src, flag, extra);
+ if (src)
+ COMMON_INTERCEPTOR_READ_RANGE(ctx, src, REAL(strlen)(src) + 1);
+ if (extra)
+ COMMON_INTERCEPTOR_READ_RANGE(ctx, extra, REAL(strlen)(extra) + 1);
+ int len = REAL(strsvis)(dst, src, flag, extra);
+ if (dst)
+ COMMON_INTERCEPTOR_WRITE_RANGE(ctx, dst, len + 1);
+ return len;
+}
+INTERCEPTOR(int, strsnvis, char *dst, SIZE_T dlen, const char *src, int flag,
+ const char *extra) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, strsnvis, dst, dlen, src, flag, extra);
+ if (src)
+ COMMON_INTERCEPTOR_READ_RANGE(ctx, src, REAL(strlen)(src) + 1);
+ if (extra)
+ COMMON_INTERCEPTOR_READ_RANGE(ctx, extra, REAL(strlen)(extra) + 1);
+ int len = REAL(strsnvis)(dst, dlen, src, flag, extra);
+ // The interface will be valid even if there is no space for NULL char
+ if (dst && len >= 0)
+ COMMON_INTERCEPTOR_WRITE_RANGE(ctx, dst, len + 1);
+ return len;
+}
+INTERCEPTOR(int, strsvisx, char *dst, const char *src, SIZE_T len, int flag,
+ const char *extra) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, strsvisx, dst, src, len, flag, extra);
+ if (src)
+ COMMON_INTERCEPTOR_READ_RANGE(ctx, src, len);
+ if (extra)
+ COMMON_INTERCEPTOR_READ_RANGE(ctx, extra, REAL(strlen)(extra) + 1);
+ int ret = REAL(strsvisx)(dst, src, len, flag, extra);
+ if (dst)
+ COMMON_INTERCEPTOR_WRITE_RANGE(ctx, dst, ret + 1);
+ return ret;
+}
+INTERCEPTOR(int, strsnvisx, char *dst, SIZE_T dlen, const char *src, SIZE_T len,
+ int flag, const char *extra) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, strsnvisx, dst, dlen, src, len, flag, extra);
+ if (src)
+ COMMON_INTERCEPTOR_READ_RANGE(ctx, src, len);
+ if (extra)
+ COMMON_INTERCEPTOR_READ_RANGE(ctx, extra, REAL(strlen)(extra) + 1);
+ int ret = REAL(strsnvisx)(dst, dlen, src, len, flag, extra);
+ if (dst && ret >= 0)
+ COMMON_INTERCEPTOR_WRITE_RANGE(ctx, dst, ret + 1);
+ return ret;
+}
+INTERCEPTOR(int, strsenvisx, char *dst, SIZE_T dlen, const char *src,
+ SIZE_T len, int flag, const char *extra, int *cerr_ptr) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, strsenvisx, dst, dlen, src, len, flag, extra,
+ cerr_ptr);
+ if (src)
+ COMMON_INTERCEPTOR_READ_RANGE(ctx, src, len);
+ if (extra)
+ COMMON_INTERCEPTOR_READ_RANGE(ctx, extra, REAL(strlen)(extra) + 1);
+ // FIXME: only need to be checked when "flag | VIS_NOLOCALE" doesn't hold
+ // according to the implementation
+ if (cerr_ptr)
+ COMMON_INTERCEPTOR_READ_RANGE(ctx, cerr_ptr, sizeof(int));
+ int ret = REAL(strsenvisx)(dst, dlen, src, len, flag, extra, cerr_ptr);
+ if (dst && ret >= 0)
+ COMMON_INTERCEPTOR_WRITE_RANGE(ctx, dst, ret + 1);
+ if (cerr_ptr)
+ COMMON_INTERCEPTOR_WRITE_RANGE(ctx, cerr_ptr, sizeof(int));
+ return ret;
+}
+INTERCEPTOR(int, unvis, char *cp, int c, int *astate, int flag) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, unvis, cp, c, astate, flag);
+ if (astate)
+ COMMON_INTERCEPTOR_READ_RANGE(ctx, astate, sizeof(*astate));
+ int ret = REAL(unvis)(cp, c, astate, flag);
+ if (ret == unvis_valid || ret == unvis_validpush) {
+ COMMON_INTERCEPTOR_WRITE_RANGE(ctx, cp, sizeof(*cp));
+ }
+ return ret;
+}
+INTERCEPTOR(int, strunvis, char *dst, const char *src) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, strunvis, dst, src);
+ if (src)
+ COMMON_INTERCEPTOR_READ_RANGE(ctx, src, REAL(strlen)(src) + 1);
+ int ret = REAL(strunvis)(dst, src);
+ if (ret != -1)
+ COMMON_INTERCEPTOR_WRITE_RANGE(ctx, dst, ret + 1);
+ return ret;
+}
+INTERCEPTOR(int, strnunvis, char *dst, SIZE_T dlen, const char *src) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, strnunvis, dst, dlen, src);
+ if (src)
+ COMMON_INTERCEPTOR_READ_RANGE(ctx, src, REAL(strlen)(src) + 1);
+ int ret = REAL(strnunvis)(dst, dlen, src);
+ if (ret != -1)
+ COMMON_INTERCEPTOR_WRITE_RANGE(ctx, dst, ret + 1);
+ return ret;
+}
+INTERCEPTOR(int, strunvisx, char *dst, const char *src, int flag) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, strunvisx, dst, src, flag);
+ if (src)
+ COMMON_INTERCEPTOR_READ_RANGE(ctx, src, REAL(strlen)(src) + 1);
+ int ret = REAL(strunvisx)(dst, src, flag);
+ if (ret != -1)
+ COMMON_INTERCEPTOR_WRITE_RANGE(ctx, dst, ret + 1);
+ return ret;
+}
+INTERCEPTOR(int, strnunvisx, char *dst, SIZE_T dlen, const char *src,
+ int flag) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, strnunvisx, dst, dlen, src, flag);
+ if (src)
+ COMMON_INTERCEPTOR_READ_RANGE(ctx, src, REAL(strlen)(src) + 1);
+ int ret = REAL(strnunvisx)(dst, dlen, src, flag);
+ if (ret != -1)
+ COMMON_INTERCEPTOR_WRITE_RANGE(ctx, dst, ret + 1);
+ return ret;
+}
+#define INIT_VIS \
+ COMMON_INTERCEPT_FUNCTION(vis); \
+ COMMON_INTERCEPT_FUNCTION(nvis); \
+ COMMON_INTERCEPT_FUNCTION(strvis); \
+ COMMON_INTERCEPT_FUNCTION(stravis); \
+ COMMON_INTERCEPT_FUNCTION(strnvis); \
+ COMMON_INTERCEPT_FUNCTION(strvisx); \
+ COMMON_INTERCEPT_FUNCTION(strnvisx); \
+ COMMON_INTERCEPT_FUNCTION(strenvisx); \
+ COMMON_INTERCEPT_FUNCTION(svis); \
+ COMMON_INTERCEPT_FUNCTION(snvis); \
+ COMMON_INTERCEPT_FUNCTION(strsvis); \
+ COMMON_INTERCEPT_FUNCTION(strsnvis); \
+ COMMON_INTERCEPT_FUNCTION(strsvisx); \
+ COMMON_INTERCEPT_FUNCTION(strsnvisx); \
+ COMMON_INTERCEPT_FUNCTION(strsenvisx); \
+ COMMON_INTERCEPT_FUNCTION(unvis); \
+ COMMON_INTERCEPT_FUNCTION(strunvis); \
+ COMMON_INTERCEPT_FUNCTION(strnunvis); \
+ COMMON_INTERCEPT_FUNCTION(strunvisx); \
+ COMMON_INTERCEPT_FUNCTION(strnunvisx)
+#else
+#define INIT_VIS
+#endif
+
+#if SANITIZER_INTERCEPT_CDB
+INTERCEPTOR(struct __sanitizer_cdbr *, cdbr_open, const char *path, int flags) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, cdbr_open, path, flags);
+ if (path)
+ COMMON_INTERCEPTOR_READ_RANGE(ctx, path, REAL(strlen)(path) + 1);
+ struct __sanitizer_cdbr *cdbr = REAL(cdbr_open)(path, flags);
+ if (cdbr)
+ COMMON_INTERCEPTOR_WRITE_RANGE(ctx, cdbr, sizeof(*cdbr));
+ return cdbr;
+}
+
+INTERCEPTOR(struct __sanitizer_cdbr *, cdbr_open_mem, void *base, SIZE_T size,
+ int flags, void (*unmap)(void *, void *, SIZE_T), void *cookie) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, cdbr_open_mem, base, size, flags, unmap,
+ cookie);
+ if (base && size)
+ COMMON_INTERCEPTOR_READ_RANGE(ctx, base, size);
+ struct __sanitizer_cdbr *cdbr =
+ REAL(cdbr_open_mem)(base, size, flags, unmap, cookie);
+ if (cdbr)
+ COMMON_INTERCEPTOR_WRITE_RANGE(ctx, cdbr, sizeof(*cdbr));
+ return cdbr;
+}
+
+INTERCEPTOR(u32, cdbr_entries, struct __sanitizer_cdbr *cdbr) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, cdbr_entries, cdbr);
+ if (cdbr)
+ COMMON_INTERCEPTOR_READ_RANGE(ctx, cdbr, sizeof(*cdbr));
+ return REAL(cdbr_entries)(cdbr);
+}
+
+INTERCEPTOR(int, cdbr_get, struct __sanitizer_cdbr *cdbr, u32 index,
+ const void **data, SIZE_T *datalen) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, cdbr_get, cdbr, index, data, datalen);
+ if (cdbr)
+ COMMON_INTERCEPTOR_READ_RANGE(ctx, cdbr, sizeof(*cdbr));
+ int ret = REAL(cdbr_get)(cdbr, index, data, datalen);
+ if (!ret) {
+ if (data)
+ COMMON_INTERCEPTOR_WRITE_RANGE(ctx, data, sizeof(*data));
+ if (datalen)
+ COMMON_INTERCEPTOR_WRITE_RANGE(ctx, datalen, sizeof(*datalen));
+ if (data && datalen)
+ COMMON_INTERCEPTOR_WRITE_RANGE(ctx, *data, *datalen);
+ }
+ return ret;
+}
+
+INTERCEPTOR(int, cdbr_find, struct __sanitizer_cdbr *cdbr, const void *key,
+ SIZE_T keylen, const void **data, SIZE_T *datalen) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, cdbr_find, cdbr, key, keylen, data, datalen);
+ if (cdbr)
+ COMMON_INTERCEPTOR_READ_RANGE(ctx, cdbr, sizeof(*cdbr));
+ if (key)
+ COMMON_INTERCEPTOR_READ_RANGE(ctx, key, keylen);
+ int ret = REAL(cdbr_find)(cdbr, key, keylen, data, datalen);
+ if (!ret) {
+ if (data)
+ COMMON_INTERCEPTOR_WRITE_RANGE(ctx, data, sizeof(*data));
+ if (datalen)
+ COMMON_INTERCEPTOR_WRITE_RANGE(ctx, datalen, sizeof(*datalen));
+ if (data && datalen)
+ COMMON_INTERCEPTOR_WRITE_RANGE(ctx, *data, *datalen);
+ }
+ return ret;
+}
+
+INTERCEPTOR(void, cdbr_close, struct __sanitizer_cdbr *cdbr) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, cdbr_close, cdbr);
+ if (cdbr)
+ COMMON_INTERCEPTOR_READ_RANGE(ctx, cdbr, sizeof(*cdbr));
+ REAL(cdbr_close)(cdbr);
+}
+
+INTERCEPTOR(struct __sanitizer_cdbw *, cdbw_open) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, cdbw_open);
+ struct __sanitizer_cdbw *ret = REAL(cdbw_open)();
+ if (ret)
+ COMMON_INTERCEPTOR_WRITE_RANGE(ctx, ret, sizeof(*ret));
+ return ret;
+}
+
+INTERCEPTOR(int, cdbw_put, struct __sanitizer_cdbw *cdbw, const void *key,
+ SIZE_T keylen, const void *data, SIZE_T datalen) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, cdbw_put, cdbw, key, keylen, data, datalen);
+ if (cdbw)
+ COMMON_INTERCEPTOR_READ_RANGE(ctx, cdbw, sizeof(*cdbw));
+ if (data && datalen)
+ COMMON_INTERCEPTOR_READ_RANGE(ctx, data, datalen);
+ if (key && keylen)
+ COMMON_INTERCEPTOR_READ_RANGE(ctx, key, keylen);
+ int ret = REAL(cdbw_put)(cdbw, key, keylen, data, datalen);
+ if (!ret && cdbw)
+ COMMON_INTERCEPTOR_WRITE_RANGE(ctx, cdbw, sizeof(*cdbw));
+ return ret;
+}
+
+INTERCEPTOR(int, cdbw_put_data, struct __sanitizer_cdbw *cdbw, const void *data,
+ SIZE_T datalen, u32 *index) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, cdbw_put_data, cdbw, data, datalen, index);
+ if (cdbw)
+ COMMON_INTERCEPTOR_READ_RANGE(ctx, cdbw, sizeof(*cdbw));
+ if (data && datalen)
+ COMMON_INTERCEPTOR_READ_RANGE(ctx, data, datalen);
+ int ret = REAL(cdbw_put_data)(cdbw, data, datalen, index);
+ if (!ret) {
+ if (index)
+ COMMON_INTERCEPTOR_WRITE_RANGE(ctx, index, sizeof(*index));
+ if (cdbw)
+ COMMON_INTERCEPTOR_WRITE_RANGE(ctx, cdbw, sizeof(*cdbw));
+ }
+ return ret;
+}
+
+INTERCEPTOR(int, cdbw_put_key, struct __sanitizer_cdbw *cdbw, const void *key,
+ SIZE_T keylen, u32 index) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, cdbw_put_key, cdbw, key, keylen, index);
+ if (cdbw)
+ COMMON_INTERCEPTOR_READ_RANGE(ctx, cdbw, sizeof(*cdbw));
+ if (key && keylen)
+ COMMON_INTERCEPTOR_READ_RANGE(ctx, key, keylen);
+ int ret = REAL(cdbw_put_key)(cdbw, key, keylen, index);
+ if (!ret && cdbw)
+ COMMON_INTERCEPTOR_WRITE_RANGE(ctx, cdbw, sizeof(*cdbw));
+ return ret;
+}
+
+INTERCEPTOR(int, cdbw_output, struct __sanitizer_cdbw *cdbw, int output,
+ const char descr[16], u32 (*seedgen)(void)) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, cdbw_output, cdbw, output, descr, seedgen);
+ COMMON_INTERCEPTOR_FD_ACCESS(ctx, output);
+ if (cdbw)
+ COMMON_INTERCEPTOR_READ_RANGE(ctx, cdbw, sizeof(*cdbw));
+ if (descr)
+ COMMON_INTERCEPTOR_READ_RANGE(ctx, descr, internal_strnlen(descr, 16));
+ if (seedgen)
+ COMMON_INTERCEPTOR_READ_RANGE(ctx, (void *)seedgen, sizeof(seedgen));
+ int ret = REAL(cdbw_output)(cdbw, output, descr, seedgen);
+ if (!ret) {
+ if (cdbw)
+ COMMON_INTERCEPTOR_WRITE_RANGE(ctx, cdbw, sizeof(*cdbw));
+ if (output >= 0)
+ COMMON_INTERCEPTOR_FD_ACQUIRE(ctx, output);
+ }
+ return ret;
+}
+
+INTERCEPTOR(void, cdbw_close, struct __sanitizer_cdbw *cdbw) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, cdbw_close, cdbw);
+ if (cdbw)
+ COMMON_INTERCEPTOR_READ_RANGE(ctx, cdbw, sizeof(*cdbw));
+ REAL(cdbw_close)(cdbw);
+}
+
+#define INIT_CDB \
+ COMMON_INTERCEPT_FUNCTION(cdbr_open); \
+ COMMON_INTERCEPT_FUNCTION(cdbr_open_mem); \
+ COMMON_INTERCEPT_FUNCTION(cdbr_entries); \
+ COMMON_INTERCEPT_FUNCTION(cdbr_get); \
+ COMMON_INTERCEPT_FUNCTION(cdbr_find); \
+ COMMON_INTERCEPT_FUNCTION(cdbr_close); \
+ COMMON_INTERCEPT_FUNCTION(cdbw_open); \
+ COMMON_INTERCEPT_FUNCTION(cdbw_put); \
+ COMMON_INTERCEPT_FUNCTION(cdbw_put_data); \
+ COMMON_INTERCEPT_FUNCTION(cdbw_put_key); \
+ COMMON_INTERCEPT_FUNCTION(cdbw_output); \
+ COMMON_INTERCEPT_FUNCTION(cdbw_close)
+#else
+#define INIT_CDB
+#endif
+
+#if SANITIZER_INTERCEPT_GETFSENT
+INTERCEPTOR(void *, getfsent) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, getfsent);
+ void *ret = REAL(getfsent)();
+ if (ret)
+ COMMON_INTERCEPTOR_WRITE_RANGE(ctx, ret, struct_fstab_sz);
+ return ret;
+}
+
+INTERCEPTOR(void *, getfsspec, const char *spec) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, getfsspec, spec);
+ if (spec)
+ COMMON_INTERCEPTOR_READ_RANGE(ctx, spec, REAL(strlen)(spec) + 1);
+ void *ret = REAL(getfsspec)(spec);
+ if (ret)
+ COMMON_INTERCEPTOR_WRITE_RANGE(ctx, ret, struct_fstab_sz);
+ return ret;
+}
+
+INTERCEPTOR(void *, getfsfile, const char *file) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, getfsfile, file);
+ if (file)
+ COMMON_INTERCEPTOR_READ_RANGE(ctx, file, REAL(strlen)(file) + 1);
+ void *ret = REAL(getfsfile)(file);
+ if (ret)
+ COMMON_INTERCEPTOR_WRITE_RANGE(ctx, ret, struct_fstab_sz);
+ return ret;
+}
+
+#define INIT_GETFSENT \
+ COMMON_INTERCEPT_FUNCTION(getfsent); \
+ COMMON_INTERCEPT_FUNCTION(getfsspec); \
+ COMMON_INTERCEPT_FUNCTION(getfsfile);
+#else
+#define INIT_GETFSENT
+#endif
+
+#if SANITIZER_INTERCEPT_ARC4RANDOM
+INTERCEPTOR(void, arc4random_buf, void *buf, SIZE_T len) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, arc4random_buf, buf, len);
+ REAL(arc4random_buf)(buf, len);
+ if (buf && len)
+ COMMON_INTERCEPTOR_WRITE_RANGE(ctx, buf, len);
+}
+
+INTERCEPTOR(void, arc4random_addrandom, u8 *dat, int datlen) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, arc4random_addrandom, dat, datlen);
+ if (dat && datlen)
+ COMMON_INTERCEPTOR_READ_RANGE(ctx, dat, datlen);
+ REAL(arc4random_addrandom)(dat, datlen);
+}
+
+#define INIT_ARC4RANDOM \
+ COMMON_INTERCEPT_FUNCTION(arc4random_buf); \
+ COMMON_INTERCEPT_FUNCTION(arc4random_addrandom);
+#else
+#define INIT_ARC4RANDOM
+#endif
+
+#if SANITIZER_INTERCEPT_POPEN
+INTERCEPTOR(__sanitizer_FILE *, popen, const char *command, const char *type) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, popen, command, type);
+ if (command)
+ COMMON_INTERCEPTOR_READ_RANGE(ctx, command, REAL(strlen)(command) + 1);
+ if (type)
+ COMMON_INTERCEPTOR_READ_RANGE(ctx, type, REAL(strlen)(type) + 1);
+ __sanitizer_FILE *res = REAL(popen)(command, type);
+ COMMON_INTERCEPTOR_FILE_OPEN(ctx, res, nullptr);
+ if (res) unpoison_file(res);
+ return res;
+}
+#define INIT_POPEN COMMON_INTERCEPT_FUNCTION(popen)
+#else
+#define INIT_POPEN
+#endif
+
+#if SANITIZER_INTERCEPT_POPENVE
+INTERCEPTOR(__sanitizer_FILE *, popenve, const char *path,
+ char *const *argv, char *const *envp, const char *type) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, popenve, path, argv, envp, type);
+ if (path)
+ COMMON_INTERCEPTOR_READ_RANGE(ctx, path, REAL(strlen)(path) + 1);
+ if (argv) {
+ for (char *const *pa = argv; ; ++pa) {
+ COMMON_INTERCEPTOR_READ_RANGE(ctx, pa, sizeof(char **));
+ if (!*pa)
+ break;
+ COMMON_INTERCEPTOR_READ_RANGE(ctx, *pa, REAL(strlen)(*pa) + 1);
+ }
+ }
+ if (envp) {
+ for (char *const *pa = envp; ; ++pa) {
+ COMMON_INTERCEPTOR_READ_RANGE(ctx, pa, sizeof(char **));
+ if (!*pa)
+ break;
+ COMMON_INTERCEPTOR_READ_RANGE(ctx, *pa, REAL(strlen)(*pa) + 1);
+ }
+ }
+ if (type)
+ COMMON_INTERCEPTOR_READ_RANGE(ctx, type, REAL(strlen)(type) + 1);
+ __sanitizer_FILE *res = REAL(popenve)(path, argv, envp, type);
+ COMMON_INTERCEPTOR_FILE_OPEN(ctx, res, nullptr);
+ if (res) unpoison_file(res);
+ return res;
+}
+#define INIT_POPENVE COMMON_INTERCEPT_FUNCTION(popenve)
+#else
+#define INIT_POPENVE
+#endif
+
+#if SANITIZER_INTERCEPT_PCLOSE
+INTERCEPTOR(int, pclose, __sanitizer_FILE *fp) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, pclose, fp);
+ COMMON_INTERCEPTOR_FILE_CLOSE(ctx, fp);
+ const FileMetadata *m = GetInterceptorMetadata(fp);
+ int res = REAL(pclose)(fp);
+ if (m) {
+ COMMON_INTERCEPTOR_INITIALIZE_RANGE(*m->addr, *m->size);
+ DeleteInterceptorMetadata(fp);
+ }
+ return res;
+}
+#define INIT_PCLOSE COMMON_INTERCEPT_FUNCTION(pclose);
+#else
+#define INIT_PCLOSE
+#endif
+
+#if SANITIZER_INTERCEPT_FUNOPEN
+typedef int (*funopen_readfn)(void *cookie, char *buf, int len);
+typedef int (*funopen_writefn)(void *cookie, const char *buf, int len);
+typedef OFF_T (*funopen_seekfn)(void *cookie, OFF_T offset, int whence);
+typedef int (*funopen_closefn)(void *cookie);
+
+struct WrappedFunopenCookie {
+ void *real_cookie;
+ funopen_readfn real_read;
+ funopen_writefn real_write;
+ funopen_seekfn real_seek;
+ funopen_closefn real_close;
+};
+
+static int wrapped_funopen_read(void *cookie, char *buf, int len) {
+ COMMON_INTERCEPTOR_UNPOISON_PARAM(3);
+ WrappedFunopenCookie *wrapped_cookie = (WrappedFunopenCookie *)cookie;
+ funopen_readfn real_read = wrapped_cookie->real_read;
+ return real_read(wrapped_cookie->real_cookie, buf, len);
+}
+
+static int wrapped_funopen_write(void *cookie, const char *buf, int len) {
+ COMMON_INTERCEPTOR_UNPOISON_PARAM(3);
+ WrappedFunopenCookie *wrapped_cookie = (WrappedFunopenCookie *)cookie;
+ funopen_writefn real_write = wrapped_cookie->real_write;
+ return real_write(wrapped_cookie->real_cookie, buf, len);
+}
+
+static OFF_T wrapped_funopen_seek(void *cookie, OFF_T offset, int whence) {
+ COMMON_INTERCEPTOR_UNPOISON_PARAM(3);
+ WrappedFunopenCookie *wrapped_cookie = (WrappedFunopenCookie *)cookie;
+ funopen_seekfn real_seek = wrapped_cookie->real_seek;
+ return real_seek(wrapped_cookie->real_cookie, offset, whence);
+}
+
+static int wrapped_funopen_close(void *cookie) {
+ COMMON_INTERCEPTOR_UNPOISON_PARAM(1);
+ WrappedFunopenCookie *wrapped_cookie = (WrappedFunopenCookie *)cookie;
+ funopen_closefn real_close = wrapped_cookie->real_close;
+ int res = real_close(wrapped_cookie->real_cookie);
+ InternalFree(wrapped_cookie);
+ return res;
+}
+
+INTERCEPTOR(__sanitizer_FILE *, funopen, void *cookie, funopen_readfn readfn,
+ funopen_writefn writefn, funopen_seekfn seekfn,
+ funopen_closefn closefn) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, funopen, cookie, readfn, writefn, seekfn,
+ closefn);
+
+ WrappedFunopenCookie *wrapped_cookie =
+ (WrappedFunopenCookie *)InternalAlloc(sizeof(WrappedFunopenCookie));
+ wrapped_cookie->real_cookie = cookie;
+ wrapped_cookie->real_read = readfn;
+ wrapped_cookie->real_write = writefn;
+ wrapped_cookie->real_seek = seekfn;
+ wrapped_cookie->real_close = closefn;
+
+ __sanitizer_FILE *res =
+ REAL(funopen)(wrapped_cookie,
+ readfn ? wrapped_funopen_read : nullptr,
+ writefn ? wrapped_funopen_write : nullptr,
+ seekfn ? wrapped_funopen_seek : nullptr,
+ closefn ? wrapped_funopen_close : nullptr);
+ if (res)
+ unpoison_file(res);
+ return res;
+}
+#define INIT_FUNOPEN COMMON_INTERCEPT_FUNCTION(funopen)
+#else
+#define INIT_FUNOPEN
+#endif
+
+#if SANITIZER_INTERCEPT_FUNOPEN2
+typedef SSIZE_T (*funopen2_readfn)(void *cookie, void *buf, SIZE_T len);
+typedef SSIZE_T (*funopen2_writefn)(void *cookie, const void *buf, SIZE_T len);
+typedef OFF_T (*funopen2_seekfn)(void *cookie, OFF_T offset, int whence);
+typedef int (*funopen2_flushfn)(void *cookie);
+typedef int (*funopen2_closefn)(void *cookie);
+
+struct WrappedFunopen2Cookie {
+ void *real_cookie;
+ funopen2_readfn real_read;
+ funopen2_writefn real_write;
+ funopen2_seekfn real_seek;
+ funopen2_flushfn real_flush;
+ funopen2_closefn real_close;
+};
+
+static SSIZE_T wrapped_funopen2_read(void *cookie, void *buf, SIZE_T len) {
+ COMMON_INTERCEPTOR_UNPOISON_PARAM(3);
+ WrappedFunopen2Cookie *wrapped_cookie = (WrappedFunopen2Cookie *)cookie;
+ funopen2_readfn real_read = wrapped_cookie->real_read;
+ return real_read(wrapped_cookie->real_cookie, buf, len);
+}
+
+static SSIZE_T wrapped_funopen2_write(void *cookie, const void *buf,
+ SIZE_T len) {
+ COMMON_INTERCEPTOR_UNPOISON_PARAM(3);
+ WrappedFunopen2Cookie *wrapped_cookie = (WrappedFunopen2Cookie *)cookie;
+ funopen2_writefn real_write = wrapped_cookie->real_write;
+ return real_write(wrapped_cookie->real_cookie, buf, len);
+}
+
+static OFF_T wrapped_funopen2_seek(void *cookie, OFF_T offset, int whence) {
+ COMMON_INTERCEPTOR_UNPOISON_PARAM(3);
+ WrappedFunopen2Cookie *wrapped_cookie = (WrappedFunopen2Cookie *)cookie;
+ funopen2_seekfn real_seek = wrapped_cookie->real_seek;
+ return real_seek(wrapped_cookie->real_cookie, offset, whence);
+}
+
+static int wrapped_funopen2_flush(void *cookie) {
+ COMMON_INTERCEPTOR_UNPOISON_PARAM(1);
+ WrappedFunopen2Cookie *wrapped_cookie = (WrappedFunopen2Cookie *)cookie;
+ funopen2_flushfn real_flush = wrapped_cookie->real_flush;
+ return real_flush(wrapped_cookie->real_cookie);
+}
+
+static int wrapped_funopen2_close(void *cookie) {
+ COMMON_INTERCEPTOR_UNPOISON_PARAM(1);
+ WrappedFunopen2Cookie *wrapped_cookie = (WrappedFunopen2Cookie *)cookie;
+ funopen2_closefn real_close = wrapped_cookie->real_close;
+ int res = real_close(wrapped_cookie->real_cookie);
+ InternalFree(wrapped_cookie);
+ return res;
+}
+
+INTERCEPTOR(__sanitizer_FILE *, funopen2, void *cookie, funopen2_readfn readfn,
+ funopen2_writefn writefn, funopen2_seekfn seekfn,
+ funopen2_flushfn flushfn, funopen2_closefn closefn) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, funopen2, cookie, readfn, writefn, seekfn,
+ flushfn, closefn);
+
+ WrappedFunopen2Cookie *wrapped_cookie =
+ (WrappedFunopen2Cookie *)InternalAlloc(sizeof(WrappedFunopen2Cookie));
+ wrapped_cookie->real_cookie = cookie;
+ wrapped_cookie->real_read = readfn;
+ wrapped_cookie->real_write = writefn;
+ wrapped_cookie->real_seek = seekfn;
+ wrapped_cookie->real_flush = flushfn;
+ wrapped_cookie->real_close = closefn;
+
+ __sanitizer_FILE *res =
+ REAL(funopen2)(wrapped_cookie,
+ readfn ? wrapped_funopen2_read : nullptr,
+ writefn ? wrapped_funopen2_write : nullptr,
+ seekfn ? wrapped_funopen2_seek : nullptr,
+ flushfn ? wrapped_funopen2_flush : nullptr,
+ closefn ? wrapped_funopen2_close : nullptr);
+ if (res)
+ unpoison_file(res);
+ return res;
+}
+#define INIT_FUNOPEN2 COMMON_INTERCEPT_FUNCTION(funopen2)
+#else
+#define INIT_FUNOPEN2
+#endif
+
+#if SANITIZER_INTERCEPT_FDEVNAME
+INTERCEPTOR(char *, fdevname, int fd) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, fdevname, fd);
+ COMMON_INTERCEPTOR_FD_ACCESS(ctx, fd);
+ char *name = REAL(fdevname)(fd);
+ if (name) {
+ COMMON_INTERCEPTOR_WRITE_RANGE(ctx, name, REAL(strlen)(name) + 1);
+ if (fd > 0)
+ COMMON_INTERCEPTOR_FD_ACQUIRE(ctx, fd);
+ }
+ return name;
+}
+
+INTERCEPTOR(char *, fdevname_r, int fd, char *buf, SIZE_T len) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, fdevname_r, fd, buf, len);
+ COMMON_INTERCEPTOR_FD_ACCESS(ctx, fd);
+ char *name = REAL(fdevname_r)(fd, buf, len);
+ if (name && buf && len > 0) {
+ COMMON_INTERCEPTOR_WRITE_RANGE(ctx, buf, REAL(strlen)(buf) + 1);
+ if (fd > 0)
+ COMMON_INTERCEPTOR_FD_ACQUIRE(ctx, fd);
+ }
+ return name;
+}
+
+#define INIT_FDEVNAME \
+ COMMON_INTERCEPT_FUNCTION(fdevname); \
+ COMMON_INTERCEPT_FUNCTION(fdevname_r);
+#else
+#define INIT_FDEVNAME
+#endif
+
+#if SANITIZER_INTERCEPT_GETUSERSHELL
+INTERCEPTOR(char *, getusershell) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, getusershell);
+ char *res = REAL(getusershell)();
+ if (res)
+ COMMON_INTERCEPTOR_WRITE_RANGE(ctx, res, REAL(strlen)(res) + 1);
+ return res;
+}
+
+#define INIT_GETUSERSHELL COMMON_INTERCEPT_FUNCTION(getusershell);
+#else
+#define INIT_GETUSERSHELL
+#endif
+
+#if SANITIZER_INTERCEPT_SL_INIT
+INTERCEPTOR(void *, sl_init) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, sl_init);
+ void *res = REAL(sl_init)();
+ if (res)
+ COMMON_INTERCEPTOR_WRITE_RANGE(ctx, res, __sanitizer::struct_StringList_sz);
+ return res;
+}
+
+INTERCEPTOR(int, sl_add, void *sl, char *item) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, sl_add, sl, item);
+ if (sl)
+ COMMON_INTERCEPTOR_READ_RANGE(ctx, sl, __sanitizer::struct_StringList_sz);
+ if (item)
+ COMMON_INTERCEPTOR_READ_RANGE(ctx, item, REAL(strlen)(item) + 1);
+ int res = REAL(sl_add)(sl, item);
+ if (!res)
+ COMMON_INTERCEPTOR_WRITE_RANGE(ctx, sl, __sanitizer::struct_StringList_sz);
+ return res;
+}
+
+INTERCEPTOR(char *, sl_find, void *sl, const char *item) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, sl_find, sl, item);
+ if (sl)
+ COMMON_INTERCEPTOR_READ_RANGE(ctx, sl, __sanitizer::struct_StringList_sz);
+ if (item)
+ COMMON_INTERCEPTOR_READ_RANGE(ctx, item, REAL(strlen)(item) + 1);
+ char *res = REAL(sl_find)(sl, item);
+ if (res)
+ COMMON_INTERCEPTOR_WRITE_RANGE(ctx, res, REAL(strlen)(res) + 1);
+ return res;
+}
+
+INTERCEPTOR(void, sl_free, void *sl, int freeall) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, sl_free, sl, freeall);
+ if (sl)
+ COMMON_INTERCEPTOR_READ_RANGE(ctx, sl, __sanitizer::struct_StringList_sz);
+ REAL(sl_free)(sl, freeall);
+}
+
+#define INIT_SL_INIT \
+ COMMON_INTERCEPT_FUNCTION(sl_init); \
+ COMMON_INTERCEPT_FUNCTION(sl_add); \
+ COMMON_INTERCEPT_FUNCTION(sl_find); \
+ COMMON_INTERCEPT_FUNCTION(sl_free);
+#else
+#define INIT_SL_INIT
+#endif
+
+#if SANITIZER_INTERCEPT_GETRANDOM
+INTERCEPTOR(SSIZE_T, getrandom, void *buf, SIZE_T buflen, unsigned int flags) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, getrandom, buf, buflen, flags);
+ SSIZE_T n = REAL(getrandom)(buf, buflen, flags);
+ if (n > 0) {
+ COMMON_INTERCEPTOR_WRITE_RANGE(ctx, buf, n);
+ }
+ return n;
+}
+#define INIT_GETRANDOM COMMON_INTERCEPT_FUNCTION(getrandom)
+#else
+#define INIT_GETRANDOM
+#endif
+
+static void InitializeCommonInterceptors() {
+#if SI_POSIX
+ static u64 metadata_mem[sizeof(MetadataHashMap) / sizeof(u64) + 1];
+ interceptor_metadata_map =
+ new ((void *)&metadata_mem) MetadataHashMap(); // NOLINT
+#endif
+
+ INIT_MMAP;
+ INIT_MMAP64;
+ INIT_TEXTDOMAIN;
+ INIT_STRLEN;
+ INIT_STRNLEN;
+ INIT_STRNDUP;
+ INIT___STRNDUP;
+ INIT_STRCMP;
+ INIT_STRNCMP;
+ INIT_STRCASECMP;
+ INIT_STRNCASECMP;
+ INIT_STRSTR;
+ INIT_STRCASESTR;
+ INIT_STRCHR;
+ INIT_STRCHRNUL;
+ INIT_STRRCHR;
+ INIT_STRSPN;
+ INIT_STRTOK;
+ INIT_STRPBRK;
+ INIT_STRXFRM;
+ INIT___STRXFRM_L;
+ INIT_MEMSET;
+ INIT_MEMMOVE;
+ INIT_MEMCPY;
+ INIT_MEMCHR;
+ INIT_MEMCMP;
+ INIT_BCMP;
+ INIT_MEMRCHR;
+ INIT_MEMMEM;
+ INIT_READ;
+ INIT_FREAD;
+ INIT_PREAD;
+ INIT_PREAD64;
+ INIT_READV;
+ INIT_PREADV;
+ INIT_PREADV64;
+ INIT_WRITE;
+ INIT_FWRITE;
+ INIT_PWRITE;
+ INIT_PWRITE64;
+ INIT_WRITEV;
+ INIT_PWRITEV;
+ INIT_PWRITEV64;
+ INIT_FGETS;
+ INIT_FPUTS;
+ INIT_PUTS;
+ INIT_PRCTL;
+ INIT_LOCALTIME_AND_FRIENDS;
+ INIT_STRPTIME;
+ INIT_SCANF;
+ INIT_ISOC99_SCANF;
+ INIT_PRINTF;
+ INIT_PRINTF_L;
+ INIT_ISOC99_PRINTF;
+ INIT_FREXP;
+ INIT_FREXPF_FREXPL;
+ INIT_GETPWNAM_AND_FRIENDS;
+ INIT_GETPWNAM_R_AND_FRIENDS;
+ INIT_GETPWENT;
+ INIT_FGETPWENT;
+ INIT_GETPWENT_R;
+ INIT_FGETPWENT_R;
+ INIT_FGETGRENT_R;
+ INIT_SETPWENT;
+ INIT_CLOCK_GETTIME;
+ INIT_GETITIMER;
+ INIT_TIME;
+ INIT_GLOB;
+ INIT_GLOB64;
+ INIT_WAIT;
+ INIT_WAIT4;
+ INIT_INET;
+ INIT_PTHREAD_GETSCHEDPARAM;
+ INIT_GETADDRINFO;
+ INIT_GETNAMEINFO;
+ INIT_GETSOCKNAME;
+ INIT_GETHOSTBYNAME;
+ INIT_GETHOSTBYNAME2;
+ INIT_GETHOSTBYNAME_R;
+ INIT_GETHOSTBYNAME2_R;
+ INIT_GETHOSTBYADDR_R;
+ INIT_GETHOSTENT_R;
+ INIT_GETSOCKOPT;
+ INIT_ACCEPT;
+ INIT_ACCEPT4;
+ INIT_PACCEPT;
+ INIT_MODF;
+ INIT_RECVMSG;
+ INIT_SENDMSG;
+ INIT_RECVMMSG;
+ INIT_SENDMMSG;
+ INIT_GETPEERNAME;
+ INIT_IOCTL;
+ INIT_INET_ATON;
+ INIT_SYSINFO;
+ INIT_READDIR;
+ INIT_READDIR64;
+ INIT_PTRACE;
+ INIT_SETLOCALE;
+ INIT_GETCWD;
+ INIT_GET_CURRENT_DIR_NAME;
+ INIT_STRTOIMAX;
+ INIT_MBSTOWCS;
+ INIT_MBSNRTOWCS;
+ INIT_WCSTOMBS;
+ INIT_WCSNRTOMBS;
+ INIT_WCRTOMB;
+ INIT_WCTOMB;
+ INIT_TCGETATTR;
+ INIT_REALPATH;
+ INIT_CANONICALIZE_FILE_NAME;
+ INIT_CONFSTR;
+ INIT_SCHED_GETAFFINITY;
+ INIT_SCHED_GETPARAM;
+ INIT_STRERROR;
+ INIT_STRERROR_R;
+ INIT_XPG_STRERROR_R;
+ INIT_SCANDIR;
+ INIT_SCANDIR64;
+ INIT_GETGROUPS;
+ INIT_POLL;
+ INIT_PPOLL;
+ INIT_WORDEXP;
+ INIT_SIGWAIT;
+ INIT_SIGWAITINFO;
+ INIT_SIGTIMEDWAIT;
+ INIT_SIGSETOPS;
+ INIT_SIGPENDING;
+ INIT_SIGPROCMASK;
+ INIT_PTHREAD_SIGMASK;
+ INIT_BACKTRACE;
+ INIT__EXIT;
+ INIT_PTHREAD_MUTEX_LOCK;
+ INIT_PTHREAD_MUTEX_UNLOCK;
+ INIT___PTHREAD_MUTEX_LOCK;
+ INIT___PTHREAD_MUTEX_UNLOCK;
+ INIT___LIBC_MUTEX_LOCK;
+ INIT___LIBC_MUTEX_UNLOCK;
+ INIT___LIBC_THR_SETCANCELSTATE;
+ INIT_GETMNTENT;
+ INIT_GETMNTENT_R;
+ INIT_STATFS;
+ INIT_STATFS64;
+ INIT_STATVFS;
+ INIT_STATVFS64;
+ INIT_INITGROUPS;
+ INIT_ETHER_NTOA_ATON;
+ INIT_ETHER_HOST;
+ INIT_ETHER_R;
+ INIT_SHMCTL;
+ INIT_RANDOM_R;
+ INIT_PTHREAD_ATTR_GET;
+ INIT_PTHREAD_ATTR_GET_SCHED;
+ INIT_PTHREAD_ATTR_GETINHERITSCHED;
+ INIT_PTHREAD_ATTR_GETAFFINITY_NP;
+ INIT_PTHREAD_MUTEXATTR_GETPSHARED;
+ INIT_PTHREAD_MUTEXATTR_GETTYPE;
+ INIT_PTHREAD_MUTEXATTR_GETPROTOCOL;
+ INIT_PTHREAD_MUTEXATTR_GETPRIOCEILING;
+ INIT_PTHREAD_MUTEXATTR_GETROBUST;
+ INIT_PTHREAD_MUTEXATTR_GETROBUST_NP;
+ INIT_PTHREAD_RWLOCKATTR_GETPSHARED;
+ INIT_PTHREAD_RWLOCKATTR_GETKIND_NP;
+ INIT_PTHREAD_CONDATTR_GETPSHARED;
+ INIT_PTHREAD_CONDATTR_GETCLOCK;
+ INIT_PTHREAD_BARRIERATTR_GETPSHARED;
+ INIT_TMPNAM;
+ INIT_TMPNAM_R;
+ INIT_TTYNAME;
+ INIT_TTYNAME_R;
+ INIT_TEMPNAM;
+ INIT_PTHREAD_SETNAME_NP;
+ INIT_PTHREAD_GETNAME_NP;
+ INIT_SINCOS;
+ INIT_REMQUO;
+ INIT_REMQUOL;
+ INIT_LGAMMA;
+ INIT_LGAMMAL;
+ INIT_LGAMMA_R;
+ INIT_LGAMMAL_R;
+ INIT_DRAND48_R;
+ INIT_RAND_R;
+ INIT_GETLINE;
+ INIT_ICONV;
+ INIT_TIMES;
+ INIT_TLS_GET_ADDR;
+ INIT_LISTXATTR;
+ INIT_GETXATTR;
+ INIT_GETRESID;
+ INIT_GETIFADDRS;
+ INIT_IF_INDEXTONAME;
+ INIT_CAPGET;
+ INIT_AEABI_MEM;
+ INIT___BZERO;
+ INIT_BZERO;
+ INIT_FTIME;
+ INIT_XDR;
+ INIT_TSEARCH;
+ INIT_LIBIO_INTERNALS;
+ INIT_FOPEN;
+ INIT_FOPEN64;
+ INIT_OPEN_MEMSTREAM;
+ INIT_OBSTACK;
+ INIT_FFLUSH;
+ INIT_FCLOSE;
+ INIT_DLOPEN_DLCLOSE;
+ INIT_GETPASS;
+ INIT_TIMERFD;
+ INIT_MLOCKX;
+ INIT_FOPENCOOKIE;
+ INIT_SEM;
+ INIT_PTHREAD_SETCANCEL;
+ INIT_MINCORE;
+ INIT_PROCESS_VM_READV;
+ INIT_CTERMID;
+ INIT_CTERMID_R;
+ INIT_RECV_RECVFROM;
+ INIT_SEND_SENDTO;
+ INIT_STAT;
+ INIT_EVENTFD_READ_WRITE;
+ INIT_LSTAT;
+ INIT___XSTAT;
+ INIT___XSTAT64;
+ INIT___LXSTAT;
+ INIT___LXSTAT64;
+ // FIXME: add other *stat interceptors.
+ INIT_UTMP;
+ INIT_UTMPX;
+ INIT_GETLOADAVG;
+ INIT_WCSLEN;
+ INIT_WCSCAT;
+ INIT_WCSDUP;
+ INIT_WCSXFRM;
+ INIT___WCSXFRM_L;
+ INIT_ACCT;
+ INIT_USER_FROM_UID;
+ INIT_UID_FROM_USER;
+ INIT_GROUP_FROM_GID;
+ INIT_GID_FROM_GROUP;
+ INIT_ACCESS;
+ INIT_FACCESSAT;
+ INIT_GETGROUPLIST;
+ INIT_GETGROUPMEMBERSHIP;
+ INIT_READLINK;
+ INIT_READLINKAT;
+ INIT_NAME_TO_HANDLE_AT;
+ INIT_OPEN_BY_HANDLE_AT;
+ INIT_STRLCPY;
+ INIT_DEVNAME;
+ INIT_DEVNAME_R;
+ INIT_FGETLN;
+ INIT_STRMODE;
+ INIT_TTYENT;
+ INIT_PROTOENT;
+ INIT_NETENT;
+ INIT_GETMNTINFO;
+ INIT_MI_VECTOR_HASH;
+ INIT_SETVBUF;
+ INIT_GETVFSSTAT;
+ INIT_REGEX;
+ INIT_REGEXSUB;
+ INIT_FTS;
+ INIT_SYSCTL;
+ INIT_ASYSCTL;
+ INIT_SYSCTLGETMIBINFO;
+ INIT_NL_LANGINFO;
+ INIT_MODCTL;
+ INIT_STRTONUM;
+ INIT_FPARSELN;
+ INIT_STATVFS1;
+ INIT_STRTOI;
+ INIT_CAPSICUM;
+ INIT_SHA1;
+ INIT_MD4;
+ INIT_RMD160;
+ INIT_MD5;
+ INIT_FSEEK;
+ INIT_MD2;
+ INIT_SHA2;
+ INIT_VIS;
+ INIT_CDB;
+ INIT_GETFSENT;
+ INIT_ARC4RANDOM;
+ INIT_POPEN;
+ INIT_POPENVE;
+ INIT_PCLOSE;
+ INIT_FUNOPEN;
+ INIT_FUNOPEN2;
+ INIT_FDEVNAME;
+ INIT_GETUSERSHELL;
+ INIT_SL_INIT;
+ INIT_GETRANDOM;
+
+ INIT___PRINTF_CHK;
+}
projects / thirdparty / gcc.git / blobdiff