forked from OSchip/llvm-project
10535 lines
361 KiB
C++
10535 lines
361 KiB
C++
//===-- sanitizer_common_interceptors.inc -----------------------*- C++ -*-===//
|
|
//
|
|
// 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
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
//
|
|
// Common function interceptors for tools like AddressSanitizer,
|
|
// ThreadSanitizer, MemorySanitizer, etc.
|
|
//
|
|
// This file should be included into the tool's interceptor file,
|
|
// 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_DLOPEN
|
|
// COMMON_INTERCEPTOR_ON_EXIT
|
|
// 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
|
|
// COMMON_INTERCEPTOR_STRERROR
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
#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 fstatvfs __fstatvfs90
|
|
#define fstatvfs1 __fstatvfs190
|
|
#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 __getmntinfo90
|
|
#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 getvfsstat __getvfsstat90
|
|
#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 sigaltstack __sigaltstack14
|
|
#define sigemptyset __sigemptyset14
|
|
#define sigfillset __sigfillset14
|
|
#define sigpending __sigpending14
|
|
#define sigprocmask __sigprocmask14
|
|
#define sigtimedwait __sigtimedwait50
|
|
#define stat __stat50
|
|
#define statvfs __statvfs90
|
|
#define statvfs1 __statvfs190
|
|
#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
|
|
#define PLATFORM_HAS_DIFFERENT_MEMCPY_AND_MEMMOVE 0
|
|
#elif SANITIZER_WINDOWS64
|
|
#define PLATFORM_HAS_DIFFERENT_MEMCPY_AND_MEMMOVE 0
|
|
#else
|
|
#define PLATFORM_HAS_DIFFERENT_MEMCPY_AND_MEMMOVE 1
|
|
#endif // SANITIZER_MAC
|
|
|
|
#ifndef COMMON_INTERCEPTOR_INITIALIZE_RANGE
|
|
#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_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_UNLOCK(ctx, m) {}
|
|
#endif
|
|
|
|
#ifndef COMMON_INTERCEPTOR_MUTEX_REPAIR
|
|
#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 ? (internal_strlen(s)) + 1 : (n) )
|
|
|
|
#ifndef COMMON_INTERCEPTOR_DLOPEN
|
|
#define COMMON_INTERCEPTOR_DLOPEN(filename, flag) \
|
|
({ CheckNoDeepBind(filename, flag); REAL(dlopen)(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
|
|
|
|
#if SANITIZER_GLIBC
|
|
// If we could not find the versioned symbol, fall back to an unversioned
|
|
// lookup. This is needed to work around a GLibc bug that causes dlsym
|
|
// with RTLD_NEXT to return the oldest versioned symbol.
|
|
// See https://sourceware.org/bugzilla/show_bug.cgi?id=14932.
|
|
// For certain symbols (e.g. regexec) we have to perform a versioned lookup,
|
|
// but that versioned symbol will only exist for architectures where the
|
|
// oldest Glibc version pre-dates support for that architecture.
|
|
// For example, regexec@GLIBC_2.3.4 exists on x86_64, but not RISC-V.
|
|
// See also https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98920.
|
|
#define COMMON_INTERCEPT_FUNCTION_GLIBC_VER_MIN(fn, ver) \
|
|
COMMON_INTERCEPT_FUNCTION_VER_UNVERSIONED_FALLBACK(fn, ver)
|
|
#else
|
|
#define COMMON_INTERCEPT_FUNCTION_GLIBC_VER_MIN(fn, ver) \
|
|
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
|
|
|
|
#ifndef COMMON_INTERCEPTOR_STRERROR
|
|
#define COMMON_INTERCEPTOR_STRERROR() {}
|
|
#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);
|
|
if (domainname) COMMON_INTERCEPTOR_READ_STRING(ctx, domainname, 0);
|
|
char *domain = REAL(textdomain)(domainname);
|
|
if (domain) {
|
|
COMMON_INTERCEPTOR_INITIALIZE_RANGE(domain, internal_strlen(domain) + 1);
|
|
}
|
|
return domain;
|
|
}
|
|
#define INIT_TEXTDOMAIN COMMON_INTERCEPT_FUNCTION(textdomain)
|
|
#else
|
|
#define INIT_TEXTDOMAIN
|
|
#endif
|
|
|
|
#if SANITIZER_INTERCEPT_STRCMP
|
|
static inline int CharCmpX(unsigned char c1, unsigned char c2) {
|
|
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);
|
|
unsigned char c1, c2;
|
|
uptr i;
|
|
for (i = 0;; i++) {
|
|
c1 = (unsigned char)s1[i];
|
|
c2 = (unsigned char)s2[i];
|
|
if (c1 != c2 || c1 == '\0') break;
|
|
}
|
|
if (common_flags()->intercept_strcmp) {
|
|
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;
|
|
uptr i;
|
|
for (i = 0; i < size; i++) {
|
|
c1 = (unsigned char)s1[i];
|
|
c2 = (unsigned char)s2[i];
|
|
if (c1 != c2 || c1 == '\0') break;
|
|
}
|
|
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)
|
|
#define INIT_STRNCMP COMMON_INTERCEPT_FUNCTION(strncmp)
|
|
#else
|
|
#define INIT_STRCMP
|
|
#define INIT_STRNCMP
|
|
#endif
|
|
|
|
#if SANITIZER_INTERCEPT_STRCASECMP
|
|
static inline int CharCaseCmp(unsigned char c1, unsigned char c2) {
|
|
int c1_low = ToLower(c1);
|
|
int c2_low = ToLower(c2);
|
|
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);
|
|
unsigned char c1 = 0, c2 = 0;
|
|
uptr i;
|
|
for (i = 0;; i++) {
|
|
c1 = (unsigned char)s1[i];
|
|
c2 = (unsigned char)s2[i];
|
|
if (CharCaseCmp(c1, c2) != 0 || c1 == '\0') break;
|
|
}
|
|
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;
|
|
}
|
|
|
|
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, size);
|
|
unsigned char c1 = 0, c2 = 0;
|
|
uptr 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;
|
|
}
|
|
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 COMMON_INTERCEPT_FUNCTION(strncasecmp)
|
|
#else
|
|
#define INIT_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 = internal_strlen(s1);
|
|
uptr len2 = internal_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, internal_strlen(str) + 1);
|
|
}
|
|
COMMON_INTERCEPTOR_READ_RANGE(ctx, delimiters,
|
|
internal_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, internal_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, internal_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 : internal_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, internal_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, internal_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, internal_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, internal_strlen(s2) + 1);
|
|
COMMON_INTERCEPTOR_READ_STRING(ctx, s1,
|
|
r ? r - s1 + 1 : internal_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);
|
|
#endif
|
|
}
|
|
|
|
#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);
|
|
// Assuming frexp() always writes to |exp|.
|
|
COMMON_INTERCEPTOR_WRITE_RANGE(ctx, exp, sizeof(*exp));
|
|
double res = REAL(frexp)(x, exp);
|
|
COMMON_INTERCEPTOR_INITIALIZE_RANGE(exp, sizeof(*exp));
|
|
return res;
|
|
}
|
|
|
|
#define INIT_FREXP COMMON_INTERCEPT_FUNCTION(frexp);
|
|
#else
|
|
#define INIT_FREXP
|
|
#endif // SANITIZER_INTERCEPT_FREXP
|
|
|
|
#if SANITIZER_INTERCEPT_FREXPF_FREXPL
|
|
INTERCEPTOR(float, frexpf, float x, int *exp) {
|
|
void *ctx;
|
|
COMMON_INTERCEPTOR_ENTER(ctx, frexpf, x, exp);
|
|
COMMON_INTERCEPTOR_WRITE_RANGE(ctx, exp, sizeof(*exp));
|
|
float res = REAL(frexpf)(x, exp);
|
|
COMMON_INTERCEPTOR_INITIALIZE_RANGE(exp, sizeof(*exp));
|
|
return res;
|
|
}
|
|
|
|
INTERCEPTOR(long double, frexpl, long double x, int *exp) {
|
|
void *ctx;
|
|
COMMON_INTERCEPTOR_ENTER(ctx, frexpl, x, exp);
|
|
COMMON_INTERCEPTOR_WRITE_RANGE(ctx, exp, sizeof(*exp));
|
|
long double res = REAL(frexpl)(x, exp);
|
|
COMMON_INTERCEPTOR_INITIALIZE_RANGE(exp, sizeof(*exp));
|
|
return res;
|
|
}
|
|
|
|
#define INIT_FREXPF_FREXPL \
|
|
COMMON_INTERCEPT_FUNCTION(frexpf); \
|
|
COMMON_INTERCEPT_FUNCTION_LDBL(frexpl)
|
|
#else
|
|
#define INIT_FREXPF_FREXPL
|
|
#endif // SANITIZER_INTERCEPT_FREXPF_FREXPL
|
|
|
|
#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) {
|
|
SSIZE_T sz = Min(iovec[i].iov_len, maxlen);
|
|
COMMON_INTERCEPTOR_WRITE_RANGE(ctx, iovec[i].iov_base, sz);
|
|
maxlen -= sz;
|
|
}
|
|
}
|
|
|
|
static void read_iovec(void *ctx, struct __sanitizer_iovec *iovec,
|
|
SIZE_T iovlen, SIZE_T maxlen) {
|
|
COMMON_INTERCEPTOR_READ_RANGE(ctx, iovec, sizeof(*iovec) * iovlen);
|
|
for (SIZE_T i = 0; i < iovlen && maxlen; ++i) {
|
|
SSIZE_T sz = Min(iovec[i].iov_len, maxlen);
|
|
COMMON_INTERCEPTOR_READ_RANGE(ctx, iovec[i].iov_base, sz);
|
|
maxlen -= sz;
|
|
}
|
|
}
|
|
#endif
|
|
|
|
#if SANITIZER_INTERCEPT_READ
|
|
INTERCEPTOR(SSIZE_T, read, int fd, void *ptr, SIZE_T count) {
|
|
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);
|
|
return res;
|
|
}
|
|
#define INIT_READ COMMON_INTERCEPT_FUNCTION(read)
|
|
#else
|
|
#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);
|
|
return res;
|
|
}
|
|
#define INIT_PREAD COMMON_INTERCEPT_FUNCTION(pread)
|
|
#else
|
|
#define INIT_PREAD
|
|
#endif
|
|
|
|
#if SANITIZER_INTERCEPT_PREAD64
|
|
INTERCEPTOR(SSIZE_T, pread64, int fd, void *ptr, SIZE_T count, OFF64_T offset) {
|
|
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);
|
|
return res;
|
|
}
|
|
#define INIT_PREAD64 COMMON_INTERCEPT_FUNCTION(pread64)
|
|
#else
|
|
#define INIT_PREAD64
|
|
#endif
|
|
|
|
#if SANITIZER_INTERCEPT_READV
|
|
INTERCEPTOR_WITH_SUFFIX(SSIZE_T, readv, int fd, __sanitizer_iovec *iov,
|
|
int iovcnt) {
|
|
void *ctx;
|
|
COMMON_INTERCEPTOR_ENTER(ctx, readv, fd, iov, iovcnt);
|
|
COMMON_INTERCEPTOR_FD_ACCESS(ctx, fd);
|
|
SSIZE_T res = REAL(readv)(fd, iov, iovcnt);
|
|
if (res > 0) write_iovec(ctx, iov, iovcnt, res);
|
|
if (res >= 0 && fd >= 0) COMMON_INTERCEPTOR_FD_ACQUIRE(ctx, fd);
|
|
return res;
|
|
}
|
|
#define INIT_READV COMMON_INTERCEPT_FUNCTION(readv)
|
|
#else
|
|
#define INIT_READV
|
|
#endif
|
|
|
|
#if SANITIZER_INTERCEPT_PREADV
|
|
INTERCEPTOR(SSIZE_T, preadv, int fd, __sanitizer_iovec *iov, int iovcnt,
|
|
OFF_T offset) {
|
|
void *ctx;
|
|
COMMON_INTERCEPTOR_ENTER(ctx, preadv, fd, iov, iovcnt, offset);
|
|
COMMON_INTERCEPTOR_FD_ACCESS(ctx, fd);
|
|
SSIZE_T res = REAL(preadv)(fd, iov, iovcnt, offset);
|
|
if (res > 0) write_iovec(ctx, iov, iovcnt, res);
|
|
if (res >= 0 && fd >= 0) COMMON_INTERCEPTOR_FD_ACQUIRE(ctx, fd);
|
|
return res;
|
|
}
|
|
#define INIT_PREADV COMMON_INTERCEPT_FUNCTION(preadv)
|
|
#else
|
|
#define INIT_PREADV
|
|
#endif
|
|
|
|
#if SANITIZER_INTERCEPT_PREADV64
|
|
INTERCEPTOR(SSIZE_T, preadv64, int fd, __sanitizer_iovec *iov, int iovcnt,
|
|
OFF64_T offset) {
|
|
void *ctx;
|
|
COMMON_INTERCEPTOR_ENTER(ctx, preadv64, fd, iov, iovcnt, offset);
|
|
COMMON_INTERCEPTOR_FD_ACCESS(ctx, fd);
|
|
SSIZE_T res = REAL(preadv64)(fd, iov, iovcnt, offset);
|
|
if (res > 0) write_iovec(ctx, iov, iovcnt, res);
|
|
if (res >= 0 && fd >= 0) COMMON_INTERCEPTOR_FD_ACQUIRE(ctx, fd);
|
|
return res;
|
|
}
|
|
#define INIT_PREADV64 COMMON_INTERCEPT_FUNCTION(preadv64)
|
|
#else
|
|
#define INIT_PREADV64
|
|
#endif
|
|
|
|
#if SANITIZER_INTERCEPT_WRITE
|
|
INTERCEPTOR(SSIZE_T, write, int fd, void *ptr, SIZE_T count) {
|
|
void *ctx;
|
|
COMMON_INTERCEPTOR_ENTER(ctx, write, fd, ptr, count);
|
|
COMMON_INTERCEPTOR_FD_ACCESS(ctx, fd);
|
|
if (fd >= 0) COMMON_INTERCEPTOR_FD_RELEASE(ctx, fd);
|
|
SSIZE_T res = REAL(write)(fd, ptr, count);
|
|
// FIXME: this check should be _before_ the call to REAL(write), not after
|
|
if (res > 0) COMMON_INTERCEPTOR_READ_RANGE(ctx, ptr, res);
|
|
return res;
|
|
}
|
|
#define INIT_WRITE COMMON_INTERCEPT_FUNCTION(write)
|
|
#else
|
|
#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;
|
|
COMMON_INTERCEPTOR_ENTER(ctx, pwrite, fd, ptr, count, offset);
|
|
COMMON_INTERCEPTOR_FD_ACCESS(ctx, fd);
|
|
if (fd >= 0) COMMON_INTERCEPTOR_FD_RELEASE(ctx, fd);
|
|
SSIZE_T res = REAL(pwrite)(fd, ptr, count, offset);
|
|
if (res > 0) COMMON_INTERCEPTOR_READ_RANGE(ctx, ptr, res);
|
|
return res;
|
|
}
|
|
#define INIT_PWRITE COMMON_INTERCEPT_FUNCTION(pwrite)
|
|
#else
|
|
#define INIT_PWRITE
|
|
#endif
|
|
|
|
#if SANITIZER_INTERCEPT_PWRITE64
|
|
INTERCEPTOR(SSIZE_T, pwrite64, int fd, void *ptr, OFF64_T count,
|
|
OFF64_T offset) {
|
|
void *ctx;
|
|
COMMON_INTERCEPTOR_ENTER(ctx, pwrite64, fd, ptr, count, offset);
|
|
COMMON_INTERCEPTOR_FD_ACCESS(ctx, fd);
|
|
if (fd >= 0) COMMON_INTERCEPTOR_FD_RELEASE(ctx, fd);
|
|
SSIZE_T res = REAL(pwrite64)(fd, ptr, count, offset);
|
|
if (res > 0) COMMON_INTERCEPTOR_READ_RANGE(ctx, ptr, res);
|
|
return res;
|
|
}
|
|
#define INIT_PWRITE64 COMMON_INTERCEPT_FUNCTION(pwrite64)
|
|
#else
|
|
#define INIT_PWRITE64
|
|
#endif
|
|
|
|
#if SANITIZER_INTERCEPT_WRITEV
|
|
INTERCEPTOR_WITH_SUFFIX(SSIZE_T, writev, int fd, __sanitizer_iovec *iov,
|
|
int iovcnt) {
|
|
void *ctx;
|
|
COMMON_INTERCEPTOR_ENTER(ctx, writev, fd, iov, iovcnt);
|
|
COMMON_INTERCEPTOR_FD_ACCESS(ctx, fd);
|
|
if (fd >= 0) COMMON_INTERCEPTOR_FD_RELEASE(ctx, fd);
|
|
SSIZE_T res = REAL(writev)(fd, iov, iovcnt);
|
|
if (res > 0) read_iovec(ctx, iov, iovcnt, res);
|
|
return res;
|
|
}
|
|
#define INIT_WRITEV COMMON_INTERCEPT_FUNCTION(writev)
|
|
#else
|
|
#define INIT_WRITEV
|
|
#endif
|
|
|
|
#if SANITIZER_INTERCEPT_PWRITEV
|
|
INTERCEPTOR(SSIZE_T, pwritev, int fd, __sanitizer_iovec *iov, int iovcnt,
|
|
OFF_T offset) {
|
|
void *ctx;
|
|
COMMON_INTERCEPTOR_ENTER(ctx, pwritev, fd, iov, iovcnt, offset);
|
|
COMMON_INTERCEPTOR_FD_ACCESS(ctx, fd);
|
|
if (fd >= 0) COMMON_INTERCEPTOR_FD_RELEASE(ctx, fd);
|
|
SSIZE_T res = REAL(pwritev)(fd, iov, iovcnt, offset);
|
|
if (res > 0) read_iovec(ctx, iov, iovcnt, res);
|
|
return res;
|
|
}
|
|
#define INIT_PWRITEV COMMON_INTERCEPT_FUNCTION(pwritev)
|
|
#else
|
|
#define INIT_PWRITEV
|
|
#endif
|
|
|
|
#if SANITIZER_INTERCEPT_PWRITEV64
|
|
INTERCEPTOR(SSIZE_T, pwritev64, int fd, __sanitizer_iovec *iov, int iovcnt,
|
|
OFF64_T offset) {
|
|
void *ctx;
|
|
COMMON_INTERCEPTOR_ENTER(ctx, pwritev64, fd, iov, iovcnt, offset);
|
|
COMMON_INTERCEPTOR_FD_ACCESS(ctx, fd);
|
|
if (fd >= 0) COMMON_INTERCEPTOR_FD_RELEASE(ctx, fd);
|
|
SSIZE_T res = REAL(pwritev64)(fd, iov, iovcnt, offset);
|
|
if (res > 0) read_iovec(ctx, iov, iovcnt, res);
|
|
return res;
|
|
}
|
|
#define INIT_PWRITEV64 COMMON_INTERCEPT_FUNCTION(pwritev64)
|
|
#else
|
|
#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, internal_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, internal_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, internal_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,
|
|
unsigned long arg4, unsigned long arg5) {
|
|
void *ctx;
|
|
COMMON_INTERCEPTOR_ENTER(ctx, prctl, option, arg2, arg3, arg4, arg5);
|
|
static const int PR_SET_NAME = 15;
|
|
int res = REAL(prctl(option, arg2, arg3, arg4, arg5));
|
|
if (option == PR_SET_NAME) {
|
|
char buff[16];
|
|
internal_strncpy(buff, (char *)arg2, 15);
|
|
buff[15] = 0;
|
|
COMMON_INTERCEPTOR_SET_THREAD_NAME(ctx, buff);
|
|
}
|
|
return res;
|
|
}
|
|
#define INIT_PRCTL COMMON_INTERCEPT_FUNCTION(prctl)
|
|
#else
|
|
#define INIT_PRCTL
|
|
#endif // SANITIZER_INTERCEPT_PRCTL
|
|
|
|
#if SANITIZER_INTERCEPT_TIME
|
|
INTERCEPTOR(unsigned long, time, unsigned long *t) {
|
|
void *ctx;
|
|
COMMON_INTERCEPTOR_ENTER(ctx, 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;
|
|
}
|
|
#define INIT_TIME COMMON_INTERCEPT_FUNCTION(time);
|
|
#else
|
|
#define INIT_TIME
|
|
#endif // SANITIZER_INTERCEPT_TIME
|
|
|
|
#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(tm->tm_zone,
|
|
internal_strlen(tm->tm_zone) + 1);
|
|
}
|
|
#endif
|
|
}
|
|
INTERCEPTOR(__sanitizer_tm *, localtime, unsigned long *timep) {
|
|
void *ctx;
|
|
COMMON_INTERCEPTOR_ENTER(ctx, localtime, timep);
|
|
__sanitizer_tm *res = REAL(localtime)(timep);
|
|
if (res) {
|
|
COMMON_INTERCEPTOR_READ_RANGE(ctx, timep, sizeof(*timep));
|
|
unpoison_tm(ctx, res);
|
|
}
|
|
return res;
|
|
}
|
|
INTERCEPTOR(__sanitizer_tm *, localtime_r, unsigned long *timep, void *result) {
|
|
void *ctx;
|
|
COMMON_INTERCEPTOR_ENTER(ctx, localtime_r, timep, result);
|
|
__sanitizer_tm *res = REAL(localtime_r)(timep, result);
|
|
if (res) {
|
|
COMMON_INTERCEPTOR_READ_RANGE(ctx, timep, sizeof(*timep));
|
|
unpoison_tm(ctx, res);
|
|
}
|
|
return res;
|
|
}
|
|
INTERCEPTOR(__sanitizer_tm *, gmtime, unsigned long *timep) {
|
|
void *ctx;
|
|
COMMON_INTERCEPTOR_ENTER(ctx, gmtime, timep);
|
|
__sanitizer_tm *res = REAL(gmtime)(timep);
|
|
if (res) {
|
|
COMMON_INTERCEPTOR_READ_RANGE(ctx, timep, sizeof(*timep));
|
|
unpoison_tm(ctx, res);
|
|
}
|
|
return res;
|
|
}
|
|
INTERCEPTOR(__sanitizer_tm *, gmtime_r, unsigned long *timep, void *result) {
|
|
void *ctx;
|
|
COMMON_INTERCEPTOR_ENTER(ctx, gmtime_r, timep, result);
|
|
__sanitizer_tm *res = REAL(gmtime_r)(timep, result);
|
|
if (res) {
|
|
COMMON_INTERCEPTOR_READ_RANGE(ctx, timep, sizeof(*timep));
|
|
unpoison_tm(ctx, res);
|
|
}
|
|
return res;
|
|
}
|
|
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));
|
|
COMMON_INTERCEPTOR_WRITE_RANGE(ctx, res, internal_strlen(res) + 1);
|
|
}
|
|
return res;
|
|
}
|
|
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));
|
|
COMMON_INTERCEPTOR_WRITE_RANGE(ctx, res, internal_strlen(res) + 1);
|
|
}
|
|
return res;
|
|
}
|
|
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));
|
|
COMMON_INTERCEPTOR_WRITE_RANGE(ctx, res, internal_strlen(res) + 1);
|
|
}
|
|
return res;
|
|
}
|
|
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));
|
|
COMMON_INTERCEPTOR_WRITE_RANGE(ctx, res, internal_strlen(res) + 1);
|
|
}
|
|
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(gmtime); \
|
|
COMMON_INTERCEPT_FUNCTION(gmtime_r); \
|
|
COMMON_INTERCEPT_FUNCTION(ctime); \
|
|
COMMON_INTERCEPT_FUNCTION(ctime_r); \
|
|
COMMON_INTERCEPT_FUNCTION(asctime); \
|
|
COMMON_INTERCEPT_FUNCTION(asctime_r); \
|
|
COMMON_INTERCEPT_FUNCTION(mktime);
|
|
#else
|
|
#define INIT_LOCALTIME_AND_FRIENDS
|
|
#endif // SANITIZER_INTERCEPT_LOCALTIME_AND_FRIENDS
|
|
|
|
#if SANITIZER_INTERCEPT_STRPTIME
|
|
INTERCEPTOR(char *, strptime, char *s, char *format, __sanitizer_tm *tm) {
|
|
void *ctx;
|
|
COMMON_INTERCEPTOR_ENTER(ctx, strptime, s, format, tm);
|
|
if (format)
|
|
COMMON_INTERCEPTOR_READ_RANGE(ctx, format, internal_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);
|
|
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.
|
|
COMMON_INTERCEPTOR_WRITE_RANGE(ctx, tm, sizeof(*tm));
|
|
}
|
|
return res;
|
|
}
|
|
#define INIT_STRPTIME COMMON_INTERCEPT_FUNCTION(strptime);
|
|
#else
|
|
#define INIT_STRPTIME
|
|
#endif
|
|
|
|
#if SANITIZER_INTERCEPT_SCANF || SANITIZER_INTERCEPT_PRINTF
|
|
#include "sanitizer_common_interceptors_format.inc"
|
|
|
|
#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__); \
|
|
va_list aq; \
|
|
va_copy(aq, ap); \
|
|
int res = REAL(vname)(__VA_ARGS__); \
|
|
if (res > 0) \
|
|
scanf_common(ctx, res, allowGnuMalloc, format, aq); \
|
|
va_end(aq); \
|
|
return res; \
|
|
}
|
|
|
|
INTERCEPTOR(int, vscanf, const char *format, va_list ap)
|
|
VSCANF_INTERCEPTOR_IMPL(vscanf, true, format, ap)
|
|
|
|
INTERCEPTOR(int, vsscanf, const char *str, const char *format, va_list ap)
|
|
VSCANF_INTERCEPTOR_IMPL(vsscanf, true, str, format, ap)
|
|
|
|
INTERCEPTOR(int, vfscanf, void *stream, const char *format, va_list ap)
|
|
VSCANF_INTERCEPTOR_IMPL(vfscanf, true, stream, format, ap)
|
|
|
|
#if SANITIZER_INTERCEPT_ISOC99_SCANF
|
|
INTERCEPTOR(int, __isoc99_vscanf, const char *format, va_list ap)
|
|
VSCANF_INTERCEPTOR_IMPL(__isoc99_vscanf, false, format, ap)
|
|
|
|
INTERCEPTOR(int, __isoc99_vsscanf, const char *str, const char *format,
|
|
va_list ap)
|
|
VSCANF_INTERCEPTOR_IMPL(__isoc99_vsscanf, false, str, format, ap)
|
|
|
|
INTERCEPTOR(int, __isoc99_vfscanf, void *stream, const char *format, va_list ap)
|
|
VSCANF_INTERCEPTOR_IMPL(__isoc99_vfscanf, false, stream, format, ap)
|
|
#endif // SANITIZER_INTERCEPT_ISOC99_SCANF
|
|
|
|
INTERCEPTOR(int, scanf, const char *format, ...)
|
|
FORMAT_INTERCEPTOR_IMPL(scanf, vscanf, format)
|
|
|
|
INTERCEPTOR(int, fscanf, void *stream, const char *format, ...)
|
|
FORMAT_INTERCEPTOR_IMPL(fscanf, vfscanf, stream, format)
|
|
|
|
INTERCEPTOR(int, sscanf, const char *str, const char *format, ...)
|
|
FORMAT_INTERCEPTOR_IMPL(sscanf, vsscanf, str, format)
|
|
|
|
#if SANITIZER_INTERCEPT_ISOC99_SCANF
|
|
INTERCEPTOR(int, __isoc99_scanf, const char *format, ...)
|
|
FORMAT_INTERCEPTOR_IMPL(__isoc99_scanf, __isoc99_vscanf, format)
|
|
|
|
INTERCEPTOR(int, __isoc99_fscanf, void *stream, const char *format, ...)
|
|
FORMAT_INTERCEPTOR_IMPL(__isoc99_fscanf, __isoc99_vfscanf, stream, format)
|
|
|
|
INTERCEPTOR(int, __isoc99_sscanf, const char *str, const char *format, ...)
|
|
FORMAT_INTERCEPTOR_IMPL(__isoc99_sscanf, __isoc99_vsscanf, str, format)
|
|
#endif
|
|
|
|
#endif
|
|
|
|
#if SANITIZER_INTERCEPT_SCANF
|
|
#define INIT_SCANF \
|
|
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
|
|
|
|
#if SANITIZER_INTERCEPT_ISOC99_SCANF
|
|
#define INIT_ISOC99_SCANF \
|
|
COMMON_INTERCEPT_FUNCTION(__isoc99_scanf); \
|
|
COMMON_INTERCEPT_FUNCTION(__isoc99_sscanf); \
|
|
COMMON_INTERCEPT_FUNCTION(__isoc99_fscanf); \
|
|
COMMON_INTERCEPT_FUNCTION(__isoc99_vscanf); \
|
|
COMMON_INTERCEPT_FUNCTION(__isoc99_vsscanf); \
|
|
COMMON_INTERCEPT_FUNCTION(__isoc99_vfscanf);
|
|
#else
|
|
#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, ...)
|
|
FORMAT_INTERCEPTOR_IMPL(sprintf, vsprintf, str, format)
|
|
|
|
#if SANITIZER_INTERCEPT___PRINTF_CHK
|
|
INTERCEPTOR(int, __sprintf_chk, char *str, int flag, SIZE_T size_to,
|
|
const char *format, ...)
|
|
FORMAT_INTERCEPTOR_IMPL(__sprintf_chk, vsprintf, str, format)
|
|
#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, ...)
|
|
FORMAT_INTERCEPTOR_IMPL(__snprintf_chk, vsnprintf, str, size, format)
|
|
#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"
|
|
#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);
|
|
|
|
// Note: TSan does not use common flags, and they are zero-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);
|
|
ioctl_desc decoded_desc;
|
|
if (!desc) {
|
|
VPrintf(2, "Decoding unknown ioctl 0x%lx\n", request);
|
|
if (!ioctl_decode(request, &decoded_desc))
|
|
Printf("WARNING: failed decoding unknown ioctl 0x%lx\n", request);
|
|
else
|
|
desc = &decoded_desc;
|
|
}
|
|
|
|
if (desc) ioctl_common_pre(ctx, desc, d, request, arg);
|
|
int res = REAL(ioctl)(d, request, arg);
|
|
// FIXME: some ioctls have different return values for success and failure.
|
|
if (desc && res != -1) ioctl_common_post(ctx, desc, res, d, request, arg);
|
|
return res;
|
|
}
|
|
#define INIT_IOCTL \
|
|
ioctl_init(); \
|
|
COMMON_INTERCEPT_FUNCTION(ioctl);
|
|
#else
|
|
#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,
|
|
internal_strlen(pwd->pw_name) + 1);
|
|
if (pwd->pw_passwd)
|
|
COMMON_INTERCEPTOR_WRITE_RANGE(ctx, pwd->pw_passwd,
|
|
internal_strlen(pwd->pw_passwd) + 1);
|
|
#if !SANITIZER_ANDROID
|
|
if (pwd->pw_gecos)
|
|
COMMON_INTERCEPTOR_WRITE_RANGE(ctx, pwd->pw_gecos,
|
|
internal_strlen(pwd->pw_gecos) + 1);
|
|
#endif
|
|
#if SANITIZER_MAC || SANITIZER_FREEBSD || SANITIZER_NETBSD
|
|
if (pwd->pw_class)
|
|
COMMON_INTERCEPTOR_WRITE_RANGE(ctx, pwd->pw_class,
|
|
internal_strlen(pwd->pw_class) + 1);
|
|
#endif
|
|
if (pwd->pw_dir)
|
|
COMMON_INTERCEPTOR_WRITE_RANGE(ctx, pwd->pw_dir,
|
|
internal_strlen(pwd->pw_dir) + 1);
|
|
if (pwd->pw_shell)
|
|
COMMON_INTERCEPTOR_WRITE_RANGE(ctx, pwd->pw_shell,
|
|
internal_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,
|
|
internal_strlen(grp->gr_name) + 1);
|
|
if (grp->gr_passwd)
|
|
COMMON_INTERCEPTOR_WRITE_RANGE(ctx, grp->gr_passwd,
|
|
internal_strlen(grp->gr_passwd) + 1);
|
|
char **p = grp->gr_mem;
|
|
for (; *p; ++p) {
|
|
COMMON_INTERCEPTOR_WRITE_RANGE(ctx, *p, internal_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(__sanitizer_passwd *, getpwnam, const char *name) {
|
|
void *ctx;
|
|
COMMON_INTERCEPTOR_ENTER(ctx, getpwnam, name);
|
|
if (name)
|
|
COMMON_INTERCEPTOR_READ_RANGE(ctx, name, internal_strlen(name) + 1);
|
|
__sanitizer_passwd *res = REAL(getpwnam)(name);
|
|
unpoison_passwd(ctx, res);
|
|
return res;
|
|
}
|
|
INTERCEPTOR(__sanitizer_passwd *, getpwuid, u32 uid) {
|
|
void *ctx;
|
|
COMMON_INTERCEPTOR_ENTER(ctx, getpwuid, uid);
|
|
__sanitizer_passwd *res = REAL(getpwuid)(uid);
|
|
unpoison_passwd(ctx, res);
|
|
return res;
|
|
}
|
|
INTERCEPTOR(__sanitizer_group *, getgrnam, const char *name) {
|
|
void *ctx;
|
|
COMMON_INTERCEPTOR_ENTER(ctx, getgrnam, name);
|
|
COMMON_INTERCEPTOR_READ_RANGE(ctx, name, internal_strlen(name) + 1);
|
|
__sanitizer_group *res = REAL(getgrnam)(name);
|
|
unpoison_group(ctx, res);
|
|
return res;
|
|
}
|
|
INTERCEPTOR(__sanitizer_group *, getgrgid, u32 gid) {
|
|
void *ctx;
|
|
COMMON_INTERCEPTOR_ENTER(ctx, getgrgid, gid);
|
|
__sanitizer_group *res = REAL(getgrgid)(gid);
|
|
unpoison_group(ctx, res);
|
|
return res;
|
|
}
|
|
#define INIT_GETPWNAM_AND_FRIENDS \
|
|
COMMON_INTERCEPT_FUNCTION(getpwnam); \
|
|
COMMON_INTERCEPT_FUNCTION(getpwuid); \
|
|
COMMON_INTERCEPT_FUNCTION(getgrnam); \
|
|
COMMON_INTERCEPT_FUNCTION(getgrgid);
|
|
#else
|
|
#define INIT_GETPWNAM_AND_FRIENDS
|
|
#endif
|
|
|
|
#if SANITIZER_INTERCEPT_GETPWNAM_R_AND_FRIENDS
|
|
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, internal_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 && result)
|
|
unpoison_passwd(ctx, *result);
|
|
if (result) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, result, sizeof(*result));
|
|
return res;
|
|
}
|
|
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 && result)
|
|
unpoison_passwd(ctx, *result);
|
|
if (result) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, result, sizeof(*result));
|
|
return res;
|
|
}
|
|
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, internal_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 && result)
|
|
unpoison_group(ctx, *result);
|
|
if (result) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, result, sizeof(*result));
|
|
return res;
|
|
}
|
|
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 && result)
|
|
unpoison_group(ctx, *result);
|
|
if (result) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, result, sizeof(*result));
|
|
return res;
|
|
}
|
|
#define INIT_GETPWNAM_R_AND_FRIENDS \
|
|
COMMON_INTERCEPT_FUNCTION(getpwnam_r); \
|
|
COMMON_INTERCEPT_FUNCTION(getpwuid_r); \
|
|
COMMON_INTERCEPT_FUNCTION(getgrnam_r); \
|
|
COMMON_INTERCEPT_FUNCTION(getgrgid_r);
|
|
#else
|
|
#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);
|
|
}
|
|
return res;
|
|
}
|
|
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;
|
|
}
|
|
#if SANITIZER_GLIBC
|
|
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
|
|
#endif
|
|
INTERCEPTOR(int, clock_settime, u32 clk_id, const void *tp) {
|
|
void *ctx;
|
|
COMMON_INTERCEPTOR_ENTER(ctx, clock_settime, clk_id, tp);
|
|
COMMON_INTERCEPTOR_READ_RANGE(ctx, tp, struct_timespec_sz);
|
|
return REAL(clock_settime)(clk_id, tp);
|
|
}
|
|
#define INIT_CLOCK_GETTIME \
|
|
COMMON_INTERCEPT_FUNCTION(clock_getres); \
|
|
COMMON_INTERCEPT_FUNCTION(clock_gettime); \
|
|
COMMON_INTERCEPT_FUNCTION(clock_settime);
|
|
#else
|
|
#define INIT_CLOCK_GETTIME
|
|
#endif
|
|
|
|
#if SANITIZER_INTERCEPT_CLOCK_GETCPUCLOCKID
|
|
INTERCEPTOR(int, clock_getcpuclockid, pid_t pid,
|
|
__sanitizer_clockid_t *clockid) {
|
|
void *ctx;
|
|
COMMON_INTERCEPTOR_ENTER(ctx, clock_getcpuclockid, pid, clockid);
|
|
int res = REAL(clock_getcpuclockid)(pid, clockid);
|
|
if (!res && clockid) {
|
|
COMMON_INTERCEPTOR_WRITE_RANGE(ctx, clockid, sizeof *clockid);
|
|
}
|
|
return res;
|
|
}
|
|
|
|
INTERCEPTOR(int, pthread_getcpuclockid, uptr thread,
|
|
__sanitizer_clockid_t *clockid) {
|
|
void *ctx;
|
|
COMMON_INTERCEPTOR_ENTER(ctx, pthread_getcpuclockid, thread, clockid);
|
|
int res = REAL(pthread_getcpuclockid)(thread, clockid);
|
|
if (!res && clockid) {
|
|
COMMON_INTERCEPTOR_WRITE_RANGE(ctx, clockid, sizeof *clockid);
|
|
}
|
|
return res;
|
|
}
|
|
|
|
#define INIT_CLOCK_GETCPUCLOCKID \
|
|
COMMON_INTERCEPT_FUNCTION(clock_getcpuclockid); \
|
|
COMMON_INTERCEPT_FUNCTION(pthread_getcpuclockid);
|
|
#else
|
|
#define INIT_CLOCK_GETCPUCLOCKID
|
|
#endif
|
|
|
|
#if SANITIZER_INTERCEPT_GETITIMER
|
|
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);
|
|
}
|
|
return res;
|
|
}
|
|
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) {
|
|
// 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);
|
|
}
|
|
return res;
|
|
}
|
|
#define INIT_GETITIMER \
|
|
COMMON_INTERCEPT_FUNCTION(getitimer); \
|
|
COMMON_INTERCEPT_FUNCTION(setitimer);
|
|
#else
|
|
#define INIT_GETITIMER
|
|
#endif
|
|
|
|
#if SANITIZER_INTERCEPT_GLOB
|
|
static void unpoison_glob_t(void *ctx, __sanitizer_glob_t *pglob) {
|
|
COMMON_INTERCEPTOR_WRITE_RANGE(ctx, pglob, sizeof(*pglob));
|
|
// +1 for NULL pointer at the end.
|
|
if (pglob->gl_pathv)
|
|
COMMON_INTERCEPTOR_WRITE_RANGE(
|
|
ctx, pglob->gl_pathv, (pglob->gl_pathc + 1) * sizeof(*pglob->gl_pathv));
|
|
for (SIZE_T i = 0; i < pglob->gl_pathc; ++i) {
|
|
char *p = pglob->gl_pathv[i];
|
|
COMMON_INTERCEPTOR_WRITE_RANGE(ctx, p, internal_strlen(p) + 1);
|
|
}
|
|
}
|
|
|
|
#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 void wrapped_gl_closedir(void *dir) {
|
|
COMMON_INTERCEPTOR_UNPOISON_PARAM(1);
|
|
pglob_copy->gl_closedir(dir);
|
|
}
|
|
|
|
static void *wrapped_gl_readdir(void *dir) {
|
|
COMMON_INTERCEPTOR_UNPOISON_PARAM(1);
|
|
return pglob_copy->gl_readdir(dir);
|
|
}
|
|
|
|
static void *wrapped_gl_opendir(const char *s) {
|
|
COMMON_INTERCEPTOR_UNPOISON_PARAM(1);
|
|
COMMON_INTERCEPTOR_INITIALIZE_RANGE(s, internal_strlen(s) + 1);
|
|
return pglob_copy->gl_opendir(s);
|
|
}
|
|
|
|
static int wrapped_gl_lstat(const char *s, void *st) {
|
|
COMMON_INTERCEPTOR_UNPOISON_PARAM(2);
|
|
COMMON_INTERCEPTOR_INITIALIZE_RANGE(s, internal_strlen(s) + 1);
|
|
return pglob_copy->gl_lstat(s, st);
|
|
}
|
|
|
|
static int wrapped_gl_stat(const char *s, void *st) {
|
|
COMMON_INTERCEPTOR_UNPOISON_PARAM(2);
|
|
COMMON_INTERCEPTOR_INITIALIZE_RANGE(s, internal_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);
|
|
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_opendir, glob_copy.gl_opendir);
|
|
Swap(pglob->gl_lstat, glob_copy.gl_lstat);
|
|
Swap(pglob->gl_stat, glob_copy.gl_stat);
|
|
pglob_copy = &glob_copy;
|
|
}
|
|
int res = REAL(glob)(pattern, flags, errfunc, pglob);
|
|
if (flags & glob_altdirfunc) {
|
|
Swap(pglob->gl_closedir, glob_copy.gl_closedir);
|
|
Swap(pglob->gl_readdir, glob_copy.gl_readdir);
|
|
Swap(pglob->gl_opendir, glob_copy.gl_opendir);
|
|
Swap(pglob->gl_lstat, glob_copy.gl_lstat);
|
|
Swap(pglob->gl_stat, glob_copy.gl_stat);
|
|
}
|
|
pglob_copy = 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);
|
|
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_opendir, glob_copy.gl_opendir);
|
|
Swap(pglob->gl_lstat, glob_copy.gl_lstat);
|
|
Swap(pglob->gl_stat, glob_copy.gl_stat);
|
|
pglob_copy = &glob_copy;
|
|
}
|
|
int res = REAL(glob64)(pattern, flags, errfunc, pglob);
|
|
if (flags & glob_altdirfunc) {
|
|
Swap(pglob->gl_closedir, glob_copy.gl_closedir);
|
|
Swap(pglob->gl_readdir, glob_copy.gl_readdir);
|
|
Swap(pglob->gl_opendir, glob_copy.gl_opendir);
|
|
Swap(pglob->gl_lstat, glob_copy.gl_lstat);
|
|
Swap(pglob->gl_stat, glob_copy.gl_stat);
|
|
}
|
|
pglob_copy = 0;
|
|
if ((!res || res == glob_nomatch) && pglob) unpoison_glob_t(ctx, pglob);
|
|
return res;
|
|
}
|
|
#define INIT_GLOB64 \
|
|
COMMON_INTERCEPT_FUNCTION(glob64);
|
|
#else // SANITIZER_INTERCEPT_GLOB64
|
|
#define INIT_GLOB64
|
|
#endif // SANITIZER_INTERCEPT_GLOB64
|
|
|
|
#if SANITIZER_INTERCEPT_POSIX_SPAWN
|
|
|
|
template <class RealSpawnPtr>
|
|
static int PosixSpawnImpl(void *ctx, RealSpawnPtr *real_posix_spawn, pid_t *pid,
|
|
const char *file_or_path, const void *file_actions,
|
|
const void *attrp, char *const argv[],
|
|
char *const envp[]) {
|
|
COMMON_INTERCEPTOR_READ_RANGE(ctx, file_or_path,
|
|
internal_strlen(file_or_path) + 1);
|
|
if (argv) {
|
|
for (char *const *s = argv; ; ++s) {
|
|
COMMON_INTERCEPTOR_READ_RANGE(ctx, s, sizeof(*s));
|
|
if (!*s) break;
|
|
COMMON_INTERCEPTOR_READ_RANGE(ctx, *s, internal_strlen(*s) + 1);
|
|
}
|
|
}
|
|
if (envp) {
|
|
for (char *const *s = envp; ; ++s) {
|
|
COMMON_INTERCEPTOR_READ_RANGE(ctx, s, sizeof(*s));
|
|
if (!*s) break;
|
|
COMMON_INTERCEPTOR_READ_RANGE(ctx, *s, internal_strlen(*s) + 1);
|
|
}
|
|
}
|
|
int res =
|
|
real_posix_spawn(pid, file_or_path, file_actions, attrp, argv, envp);
|
|
if (res == 0)
|
|
COMMON_INTERCEPTOR_WRITE_RANGE(ctx, pid, sizeof(*pid));
|
|
return res;
|
|
}
|
|
INTERCEPTOR(int, posix_spawn, pid_t *pid, const char *path,
|
|
const void *file_actions, const void *attrp, char *const argv[],
|
|
char *const envp[]) {
|
|
void *ctx;
|
|
COMMON_INTERCEPTOR_ENTER(ctx, posix_spawn, pid, path, file_actions, attrp,
|
|
argv, envp);
|
|
return PosixSpawnImpl(ctx, REAL(posix_spawn), pid, path, file_actions, attrp,
|
|
argv, envp);
|
|
}
|
|
INTERCEPTOR(int, posix_spawnp, pid_t *pid, const char *file,
|
|
const void *file_actions, const void *attrp, char *const argv[],
|
|
char *const envp[]) {
|
|
void *ctx;
|
|
COMMON_INTERCEPTOR_ENTER(ctx, posix_spawnp, pid, file, file_actions, attrp,
|
|
argv, envp);
|
|
return PosixSpawnImpl(ctx, REAL(posix_spawnp), pid, file, file_actions, attrp,
|
|
argv, envp);
|
|
}
|
|
# define INIT_POSIX_SPAWN \
|
|
COMMON_INTERCEPT_FUNCTION(posix_spawn); \
|
|
COMMON_INTERCEPT_FUNCTION(posix_spawnp);
|
|
#else // SANITIZER_INTERCEPT_POSIX_SPAWN
|
|
# define INIT_POSIX_SPAWN
|
|
#endif // SANITIZER_INTERCEPT_POSIX_SPAWN
|
|
|
|
#if SANITIZER_INTERCEPT_WAIT
|
|
// According to sys/wait.h, wait(), waitid(), waitpid() may have symbol version
|
|
// suffixes on Darwin. See the declaration of INTERCEPTOR_WITH_SUFFIX for
|
|
// details.
|
|
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);
|
|
return res;
|
|
}
|
|
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));
|
|
return res;
|
|
}
|
|
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));
|
|
if (rusage) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, rusage, struct_rusage_sz);
|
|
}
|
|
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));
|
|
if (rusage) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, rusage, struct_rusage_sz);
|
|
}
|
|
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);
|
|
#else
|
|
#define INIT_WAIT
|
|
#define INIT_WAIT4
|
|
#endif
|
|
|
|
#if SANITIZER_INTERCEPT_INET
|
|
INTERCEPTOR(char *, inet_ntop, int af, const void *src, char *dst, u32 size) {
|
|
void *ctx;
|
|
COMMON_INTERCEPTOR_ENTER(ctx, inet_ntop, af, src, dst, size);
|
|
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, internal_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);
|
|
if (sz) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, dst, sz);
|
|
}
|
|
return res;
|
|
}
|
|
#define INIT_INET \
|
|
COMMON_INTERCEPT_FUNCTION(inet_ntop); \
|
|
COMMON_INTERCEPT_FUNCTION(inet_pton);
|
|
#else
|
|
#define INIT_INET
|
|
#endif
|
|
|
|
#if SANITIZER_INTERCEPT_INET
|
|
INTERCEPTOR(int, inet_aton, const char *cp, void *dst) {
|
|
void *ctx;
|
|
COMMON_INTERCEPTOR_ENTER(ctx, inet_aton, cp, dst);
|
|
if (cp) COMMON_INTERCEPTOR_READ_RANGE(ctx, cp, internal_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);
|
|
if (sz) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, dst, sz);
|
|
}
|
|
return res;
|
|
}
|
|
#define INIT_INET_ATON COMMON_INTERCEPT_FUNCTION(inet_aton);
|
|
#else
|
|
#define INIT_INET_ATON
|
|
#endif
|
|
|
|
#if SANITIZER_INTERCEPT_PTHREAD_GETSCHEDPARAM
|
|
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));
|
|
if (param) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, param, sizeof(*param));
|
|
}
|
|
return res;
|
|
}
|
|
#define INIT_PTHREAD_GETSCHEDPARAM \
|
|
COMMON_INTERCEPT_FUNCTION(pthread_getschedparam);
|
|
#else
|
|
#define INIT_PTHREAD_GETSCHEDPARAM
|
|
#endif
|
|
|
|
#if SANITIZER_INTERCEPT_GETADDRINFO
|
|
INTERCEPTOR(int, getaddrinfo, char *node, char *service,
|
|
struct __sanitizer_addrinfo *hints,
|
|
struct __sanitizer_addrinfo **out) {
|
|
void *ctx;
|
|
COMMON_INTERCEPTOR_ENTER(ctx, getaddrinfo, node, service, hints, out);
|
|
if (node) COMMON_INTERCEPTOR_READ_RANGE(ctx, node, internal_strlen(node) + 1);
|
|
if (service)
|
|
COMMON_INTERCEPTOR_READ_RANGE(ctx, service, internal_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));
|
|
struct __sanitizer_addrinfo *p = *out;
|
|
while (p) {
|
|
COMMON_INTERCEPTOR_WRITE_RANGE(ctx, p, sizeof(*p));
|
|
if (p->ai_addr)
|
|
COMMON_INTERCEPTOR_WRITE_RANGE(ctx, p->ai_addr, p->ai_addrlen);
|
|
if (p->ai_canonname)
|
|
COMMON_INTERCEPTOR_WRITE_RANGE(ctx, p->ai_canonname,
|
|
internal_strlen(p->ai_canonname) + 1);
|
|
p = p->ai_next;
|
|
}
|
|
}
|
|
return res;
|
|
}
|
|
#define INIT_GETADDRINFO COMMON_INTERCEPT_FUNCTION(getaddrinfo);
|
|
#else
|
|
#define INIT_GETADDRINFO
|
|
#endif
|
|
|
|
#if SANITIZER_INTERCEPT_GETNAMEINFO
|
|
INTERCEPTOR(int, getnameinfo, void *sockaddr, unsigned salen, char *host,
|
|
unsigned hostlen, char *serv, unsigned servlen, int flags) {
|
|
void *ctx;
|
|
COMMON_INTERCEPTOR_ENTER(ctx, getnameinfo, sockaddr, salen, host, hostlen,
|
|
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) {
|
|
if (host && hostlen)
|
|
COMMON_INTERCEPTOR_WRITE_RANGE(ctx, host, internal_strlen(host) + 1);
|
|
if (serv && servlen)
|
|
COMMON_INTERCEPTOR_WRITE_RANGE(ctx, serv, internal_strlen(serv) + 1);
|
|
}
|
|
return res;
|
|
}
|
|
#define INIT_GETNAMEINFO COMMON_INTERCEPT_FUNCTION(getnameinfo);
|
|
#else
|
|
#define INIT_GETNAMEINFO
|
|
#endif
|
|
|
|
#if SANITIZER_INTERCEPT_GETSOCKNAME
|
|
INTERCEPTOR(int, getsockname, int sock_fd, void *addr, unsigned *addrlen) {
|
|
void *ctx;
|
|
COMMON_INTERCEPTOR_ENTER(ctx, getsockname, sock_fd, addr, addrlen);
|
|
unsigned addr_sz;
|
|
if (addrlen) {
|
|
COMMON_INTERCEPTOR_READ_RANGE(ctx, addrlen, sizeof(*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(getsockname)(sock_fd, addr, addrlen);
|
|
if (!res && addr && addrlen) {
|
|
COMMON_INTERCEPTOR_WRITE_RANGE(ctx, addr, Min(addr_sz, *addrlen));
|
|
}
|
|
return res;
|
|
}
|
|
#define INIT_GETSOCKNAME COMMON_INTERCEPT_FUNCTION(getsockname);
|
|
#else
|
|
#define INIT_GETSOCKNAME
|
|
#endif
|
|
|
|
#if SANITIZER_INTERCEPT_GETHOSTBYNAME || SANITIZER_INTERCEPT_GETHOSTBYNAME_R
|
|
static void write_hostent(void *ctx, struct __sanitizer_hostent *h) {
|
|
COMMON_INTERCEPTOR_WRITE_RANGE(ctx, h, sizeof(__sanitizer_hostent));
|
|
if (h->h_name)
|
|
COMMON_INTERCEPTOR_WRITE_RANGE(ctx, h->h_name, internal_strlen(h->h_name) + 1);
|
|
char **p = h->h_aliases;
|
|
while (*p) {
|
|
COMMON_INTERCEPTOR_WRITE_RANGE(ctx, *p, internal_strlen(*p) + 1);
|
|
++p;
|
|
}
|
|
COMMON_INTERCEPTOR_WRITE_RANGE(
|
|
ctx, h->h_aliases, (p - h->h_aliases + 1) * sizeof(*h->h_aliases));
|
|
p = h->h_addr_list;
|
|
while (*p) {
|
|
COMMON_INTERCEPTOR_WRITE_RANGE(ctx, *p, h->h_length);
|
|
++p;
|
|
}
|
|
COMMON_INTERCEPTOR_WRITE_RANGE(
|
|
ctx, h->h_addr_list, (p - h->h_addr_list + 1) * sizeof(*h->h_addr_list));
|
|
}
|
|
#endif
|
|
|
|
#if SANITIZER_INTERCEPT_GETHOSTBYNAME
|
|
INTERCEPTOR(struct __sanitizer_hostent *, gethostbyname, char *name) {
|
|
void *ctx;
|
|
COMMON_INTERCEPTOR_ENTER(ctx, gethostbyname, name);
|
|
struct __sanitizer_hostent *res = REAL(gethostbyname)(name);
|
|
if (res) write_hostent(ctx, res);
|
|
return res;
|
|
}
|
|
|
|
INTERCEPTOR(struct __sanitizer_hostent *, gethostbyaddr, void *addr, int len,
|
|
int type) {
|
|
void *ctx;
|
|
COMMON_INTERCEPTOR_ENTER(ctx, gethostbyaddr, addr, len, type);
|
|
COMMON_INTERCEPTOR_READ_RANGE(ctx, addr, len);
|
|
struct __sanitizer_hostent *res = REAL(gethostbyaddr)(addr, len, type);
|
|
if (res) write_hostent(ctx, res);
|
|
return res;
|
|
}
|
|
|
|
INTERCEPTOR(struct __sanitizer_hostent *, gethostent, int fake) {
|
|
void *ctx;
|
|
COMMON_INTERCEPTOR_ENTER(ctx, gethostent, fake);
|
|
struct __sanitizer_hostent *res = REAL(gethostent)(fake);
|
|
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);
|
|
struct __sanitizer_hostent *res = REAL(gethostbyname2)(name, af);
|
|
if (res) write_hostent(ctx, res);
|
|
return res;
|
|
}
|
|
#define INIT_GETHOSTBYNAME2 COMMON_INTERCEPT_FUNCTION(gethostbyname2);
|
|
#else
|
|
#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 (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) {
|
|
void *ctx;
|
|
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 (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 (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_GETHOSTBYNAME2_R \
|
|
COMMON_INTERCEPT_FUNCTION(gethostbyname2_r);
|
|
#else
|
|
#define INIT_GETHOSTBYNAME2_R
|
|
#endif
|
|
|
|
#if SANITIZER_INTERCEPT_GETSOCKOPT
|
|
INTERCEPTOR(int, getsockopt, int sockfd, int level, int optname, void *optval,
|
|
int *optlen) {
|
|
void *ctx;
|
|
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);
|
|
return res;
|
|
}
|
|
#define INIT_GETSOCKOPT COMMON_INTERCEPT_FUNCTION(getsockopt);
|
|
#else
|
|
#define INIT_GETSOCKOPT
|
|
#endif
|
|
|
|
#if SANITIZER_INTERCEPT_ACCEPT
|
|
INTERCEPTOR(int, accept, int fd, void *addr, unsigned *addrlen) {
|
|
void *ctx;
|
|
COMMON_INTERCEPTOR_ENTER(ctx, accept, fd, addr, addrlen);
|
|
unsigned addrlen0 = 0;
|
|
if (addrlen) {
|
|
COMMON_INTERCEPTOR_READ_RANGE(ctx, addrlen, sizeof(*addrlen));
|
|
addrlen0 = *addrlen;
|
|
}
|
|
int fd2 = REAL(accept)(fd, addr, addrlen);
|
|
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_ACCEPT COMMON_INTERCEPT_FUNCTION(accept);
|
|
#else
|
|
#define INIT_ACCEPT
|
|
#endif
|
|
|
|
#if SANITIZER_INTERCEPT_ACCEPT4
|
|
INTERCEPTOR(int, accept4, int fd, void *addr, unsigned *addrlen, int f) {
|
|
void *ctx;
|
|
COMMON_INTERCEPTOR_ENTER(ctx, accept4, fd, addr, addrlen, f);
|
|
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);
|
|
if (addr && addrlen)
|
|
COMMON_INTERCEPTOR_WRITE_RANGE(ctx, addr, Min(*addrlen, addrlen0));
|
|
}
|
|
return fd2;
|
|
}
|
|
#define INIT_ACCEPT4 COMMON_INTERCEPT_FUNCTION(accept4);
|
|
#else
|
|
#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));
|
|
}
|
|
return res;
|
|
}
|
|
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));
|
|
}
|
|
return res;
|
|
}
|
|
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));
|
|
}
|
|
return res;
|
|
}
|
|
#define INIT_MODF \
|
|
COMMON_INTERCEPT_FUNCTION(modf); \
|
|
COMMON_INTERCEPT_FUNCTION(modff); \
|
|
COMMON_INTERCEPT_FUNCTION_LDBL(modfl);
|
|
#else
|
|
#define INIT_MODF
|
|
#endif
|
|
|
|
#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_name && msg->msg_namelen)
|
|
COMMON_INTERCEPTOR_WRITE_RANGE(ctx, msg->msg_name, msg->msg_namelen);
|
|
if (msg->msg_iov && msg->msg_iovlen)
|
|
COMMON_INTERCEPTOR_WRITE_RANGE(ctx, msg->msg_iov,
|
|
sizeof(*msg->msg_iov) * msg->msg_iovlen);
|
|
write_iovec(ctx, msg->msg_iov, msg->msg_iovlen, maxlen);
|
|
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);
|
|
if (msg) {
|
|
write_msghdr(ctx, msg, res);
|
|
COMMON_INTERCEPTOR_HANDLE_RECVMSG(ctx, msg);
|
|
}
|
|
}
|
|
return res;
|
|
}
|
|
#define INIT_RECVMSG COMMON_INTERCEPT_FUNCTION(recvmsg);
|
|
#else
|
|
#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_SYSMSG
|
|
INTERCEPTOR(int, msgsnd, int msqid, const void *msgp, SIZE_T msgsz,
|
|
int msgflg) {
|
|
void *ctx;
|
|
COMMON_INTERCEPTOR_ENTER(ctx, msgsnd, msqid, msgp, msgsz, msgflg);
|
|
if (msgp)
|
|
COMMON_INTERCEPTOR_READ_RANGE(ctx, msgp, sizeof(long) + msgsz);
|
|
int res = REAL(msgsnd)(msqid, msgp, msgsz, msgflg);
|
|
return res;
|
|
}
|
|
|
|
INTERCEPTOR(SSIZE_T, msgrcv, int msqid, void *msgp, SIZE_T msgsz,
|
|
long msgtyp, int msgflg) {
|
|
void *ctx;
|
|
COMMON_INTERCEPTOR_ENTER(ctx, msgrcv, msqid, msgp, msgsz, msgtyp, msgflg);
|
|
SSIZE_T len = REAL(msgrcv)(msqid, msgp, msgsz, msgtyp, msgflg);
|
|
if (len != -1)
|
|
COMMON_INTERCEPTOR_WRITE_RANGE(ctx, msgp, sizeof(long) + len);
|
|
return len;
|
|
}
|
|
|
|
#define INIT_SYSMSG \
|
|
COMMON_INTERCEPT_FUNCTION(msgsnd); \
|
|
COMMON_INTERCEPT_FUNCTION(msgrcv);
|
|
#else
|
|
#define INIT_SYSMSG
|
|
#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) {
|
|
COMMON_INTERCEPTOR_READ_RANGE(ctx, addrlen, sizeof(*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));
|
|
}
|
|
return res;
|
|
}
|
|
#define INIT_GETPEERNAME COMMON_INTERCEPT_FUNCTION(getpeername);
|
|
#else
|
|
#define INIT_GETPEERNAME
|
|
#endif
|
|
|
|
#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)
|
|
COMMON_INTERCEPTOR_WRITE_RANGE(ctx, info, struct_sysinfo_sz);
|
|
return res;
|
|
}
|
|
#define INIT_SYSINFO COMMON_INTERCEPT_FUNCTION(sysinfo);
|
|
#else
|
|
#define INIT_SYSINFO
|
|
#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, internal_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;
|
|
}
|
|
|
|
INTERCEPTOR(int, readdir_r, void *dirp, __sanitizer_dirent *entry,
|
|
__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));
|
|
if (*result)
|
|
COMMON_INTERCEPTOR_WRITE_RANGE(ctx, *result, (*result)->d_reclen);
|
|
}
|
|
return res;
|
|
}
|
|
|
|
#define INIT_READDIR \
|
|
COMMON_INTERCEPT_FUNCTION(opendir); \
|
|
COMMON_INTERCEPT_FUNCTION(readdir); \
|
|
COMMON_INTERCEPT_FUNCTION(readdir_r);
|
|
#else
|
|
#define INIT_READDIR
|
|
#endif
|
|
|
|
#if SANITIZER_INTERCEPT_READDIR64
|
|
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;
|
|
}
|
|
|
|
INTERCEPTOR(int, readdir64_r, void *dirp, __sanitizer_dirent64 *entry,
|
|
__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));
|
|
if (*result)
|
|
COMMON_INTERCEPTOR_WRITE_RANGE(ctx, *result, (*result)->d_reclen);
|
|
}
|
|
return res;
|
|
}
|
|
#define INIT_READDIR64 \
|
|
COMMON_INTERCEPT_FUNCTION(readdir64); \
|
|
COMMON_INTERCEPT_FUNCTION(readdir64_r);
|
|
#else
|
|
#define INIT_READDIR64
|
|
#endif
|
|
|
|
#if SANITIZER_INTERCEPT_PTRACE
|
|
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_regs_struct_sz);
|
|
} else if (request == ptrace_setfpregs) {
|
|
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);
|
|
|
|
// 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 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);
|
|
} else if (request == ptrace_getfpregs) {
|
|
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 *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;
|
|
}
|
|
|
|
#define INIT_PTRACE COMMON_INTERCEPT_FUNCTION(ptrace);
|
|
#else
|
|
#define INIT_PTRACE
|
|
#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, internal_strlen(locale) + 1);
|
|
char *res = REAL(setlocale)(category, locale);
|
|
if (res) {
|
|
COMMON_INTERCEPTOR_INITIALIZE_RANGE(res, internal_strlen(res) + 1);
|
|
unpoison_ctype_arrays(ctx);
|
|
}
|
|
return res;
|
|
}
|
|
|
|
#define INIT_SETLOCALE COMMON_INTERCEPT_FUNCTION(setlocale);
|
|
#else
|
|
#define INIT_SETLOCALE
|
|
#endif
|
|
|
|
#if SANITIZER_INTERCEPT_GETCWD
|
|
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, internal_strlen(res) + 1);
|
|
return res;
|
|
}
|
|
#define INIT_GETCWD COMMON_INTERCEPT_FUNCTION(getcwd);
|
|
#else
|
|
#define INIT_GETCWD
|
|
#endif
|
|
|
|
#if SANITIZER_INTERCEPT_GET_CURRENT_DIR_NAME
|
|
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, internal_strlen(res) + 1);
|
|
return res;
|
|
}
|
|
|
|
#define INIT_GET_CURRENT_DIR_NAME \
|
|
COMMON_INTERCEPT_FUNCTION(get_current_dir_name);
|
|
#else
|
|
#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);
|
|
// 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(UINTMAX_T, strtoumax, const char *nptr, char **endptr, int base) {
|
|
void *ctx;
|
|
COMMON_INTERCEPTOR_ENTER(ctx, strtoumax, nptr, endptr, base);
|
|
// 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;
|
|
}
|
|
|
|
#define INIT_STRTOIMAX \
|
|
COMMON_INTERCEPT_FUNCTION(strtoimax); \
|
|
COMMON_INTERCEPT_FUNCTION(strtoumax);
|
|
#else
|
|
#define INIT_STRTOIMAX
|
|
#endif
|
|
|
|
#if SANITIZER_INTERCEPT_MBSTOWCS
|
|
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_WRITE_RANGE(ctx, dest, write_cnt * sizeof(wchar_t));
|
|
}
|
|
return res;
|
|
}
|
|
|
|
INTERCEPTOR(SIZE_T, mbsrtowcs, wchar_t *dest, const char **src, SIZE_T len,
|
|
void *ps) {
|
|
void *ctx;
|
|
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
|
|
// \0 character. They write it iff they clear *src.
|
|
SIZE_T write_cnt = res + !*src;
|
|
COMMON_INTERCEPTOR_WRITE_RANGE(ctx, dest, write_cnt * sizeof(wchar_t));
|
|
}
|
|
return res;
|
|
}
|
|
|
|
#define INIT_MBSTOWCS \
|
|
COMMON_INTERCEPT_FUNCTION(mbstowcs); \
|
|
COMMON_INTERCEPT_FUNCTION(mbsrtowcs);
|
|
#else
|
|
#define INIT_MBSTOWCS
|
|
#endif
|
|
|
|
#if SANITIZER_INTERCEPT_MBSNRTOWCS
|
|
INTERCEPTOR(SIZE_T, mbsnrtowcs, wchar_t *dest, const char **src, SIZE_T nms,
|
|
SIZE_T len, void *ps) {
|
|
void *ctx;
|
|
COMMON_INTERCEPTOR_ENTER(ctx, mbsnrtowcs, dest, src, nms, len, ps);
|
|
if (src) {
|
|
COMMON_INTERCEPTOR_READ_RANGE(ctx, src, sizeof(*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(mbsnrtowcs)(dest, src, nms, len, ps);
|
|
if (res != (SIZE_T)(-1) && dest && src) {
|
|
SIZE_T write_cnt = res + !*src;
|
|
COMMON_INTERCEPTOR_WRITE_RANGE(ctx, dest, write_cnt * sizeof(wchar_t));
|
|
}
|
|
return res;
|
|
}
|
|
|
|
#define INIT_MBSNRTOWCS COMMON_INTERCEPT_FUNCTION(mbsnrtowcs);
|
|
#else
|
|
#define INIT_MBSNRTOWCS
|
|
#endif
|
|
|
|
#if SANITIZER_INTERCEPT_WCSTOMBS
|
|
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_WRITE_RANGE(ctx, dest, write_cnt);
|
|
}
|
|
return res;
|
|
}
|
|
|
|
INTERCEPTOR(SIZE_T, wcsrtombs, char *dest, const wchar_t **src, SIZE_T len,
|
|
void *ps) {
|
|
void *ctx;
|
|
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;
|
|
COMMON_INTERCEPTOR_WRITE_RANGE(ctx, dest, write_cnt);
|
|
}
|
|
return res;
|
|
}
|
|
|
|
#define INIT_WCSTOMBS \
|
|
COMMON_INTERCEPT_FUNCTION(wcstombs); \
|
|
COMMON_INTERCEPT_FUNCTION(wcsrtombs);
|
|
#else
|
|
#define INIT_WCSTOMBS
|
|
#endif
|
|
|
|
#if SANITIZER_INTERCEPT_WCSNRTOMBS
|
|
INTERCEPTOR(SIZE_T, wcsnrtombs, char *dest, const wchar_t **src, SIZE_T nms,
|
|
SIZE_T len, void *ps) {
|
|
void *ctx;
|
|
COMMON_INTERCEPTOR_ENTER(ctx, wcsnrtombs, dest, src, nms, len, ps);
|
|
if (src) {
|
|
COMMON_INTERCEPTOR_READ_RANGE(ctx, src, sizeof(*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) {
|
|
SIZE_T write_cnt = res + !*src;
|
|
COMMON_INTERCEPTOR_WRITE_RANGE(ctx, dest, write_cnt);
|
|
}
|
|
return res;
|
|
}
|
|
|
|
#define INIT_WCSNRTOMBS COMMON_INTERCEPT_FUNCTION(wcsnrtombs);
|
|
#else
|
|
#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);
|
|
return res;
|
|
}
|
|
|
|
#define INIT_TCGETATTR COMMON_INTERCEPT_FUNCTION(tcgetattr);
|
|
#else
|
|
#define INIT_TCGETATTR
|
|
#endif
|
|
|
|
#if SANITIZER_INTERCEPT_REALPATH
|
|
INTERCEPTOR(char *, realpath, const char *path, char *resolved_path) {
|
|
void *ctx;
|
|
COMMON_INTERCEPTOR_ENTER(ctx, realpath, path, resolved_path);
|
|
if (path) COMMON_INTERCEPTOR_READ_RANGE(ctx, path, internal_strlen(path) + 1);
|
|
|
|
// Workaround a bug in glibc where dlsym(RTLD_NEXT, ...) returns the oldest
|
|
// 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 = nullptr;
|
|
if (!resolved_path)
|
|
allocated_path = resolved_path = (char *)WRAP(malloc)(path_max + 1);
|
|
|
|
char *res = REAL(realpath)(path, resolved_path);
|
|
if (allocated_path && !res)
|
|
WRAP(free)(allocated_path);
|
|
if (res) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, res, internal_strlen(res) + 1);
|
|
return res;
|
|
}
|
|
# define INIT_REALPATH COMMON_INTERCEPT_FUNCTION(realpath);
|
|
#else
|
|
#define INIT_REALPATH
|
|
#endif
|
|
|
|
#if SANITIZER_INTERCEPT_CANONICALIZE_FILE_NAME
|
|
INTERCEPTOR(char *, canonicalize_file_name, const char *path) {
|
|
void *ctx;
|
|
COMMON_INTERCEPTOR_ENTER(ctx, canonicalize_file_name, path);
|
|
if (path) COMMON_INTERCEPTOR_READ_RANGE(ctx, path, internal_strlen(path) + 1);
|
|
char *res = REAL(canonicalize_file_name)(path);
|
|
if (res) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, res, internal_strlen(res) + 1);
|
|
return res;
|
|
}
|
|
#define INIT_CANONICALIZE_FILE_NAME \
|
|
COMMON_INTERCEPT_FUNCTION(canonicalize_file_name);
|
|
#else
|
|
#define INIT_CANONICALIZE_FILE_NAME
|
|
#endif
|
|
|
|
#if SANITIZER_INTERCEPT_CONFSTR
|
|
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);
|
|
return res;
|
|
}
|
|
#define INIT_CONFSTR COMMON_INTERCEPT_FUNCTION(confstr);
|
|
#else
|
|
#define INIT_CONFSTR
|
|
#endif
|
|
|
|
#if SANITIZER_INTERCEPT_SCHED_GETAFFINITY
|
|
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 COMMON_INTERCEPT_FUNCTION(sched_getaffinity);
|
|
#else
|
|
#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);
|
|
COMMON_INTERCEPTOR_STRERROR();
|
|
char *res = REAL(strerror)(errnum);
|
|
if (res) COMMON_INTERCEPTOR_INITIALIZE_RANGE(res, internal_strlen(res) + 1);
|
|
return res;
|
|
}
|
|
#define INIT_STRERROR COMMON_INTERCEPT_FUNCTION(strerror);
|
|
#else
|
|
#define INIT_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
|
|
// 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);
|
|
if (res == buf)
|
|
COMMON_INTERCEPTOR_WRITE_RANGE(ctx, res, internal_strlen(res) + 1);
|
|
else
|
|
COMMON_INTERCEPTOR_INITIALIZE_RANGE(res, internal_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
|
|
#endif
|
|
|
|
#if SANITIZER_INTERCEPT_XPG_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)
|
|
COMMON_INTERCEPTOR_WRITE_RANGE(ctx, buf, internal_strlen(buf) + 1);
|
|
return res;
|
|
}
|
|
#define INIT_XPG_STRERROR_R COMMON_INTERCEPT_FUNCTION(__xpg_strerror_r);
|
|
#else
|
|
#define INIT_XPG_STRERROR_R
|
|
#endif
|
|
|
|
#if SANITIZER_INTERCEPT_SCANDIR
|
|
typedef int (*scandir_filter_f)(const struct __sanitizer_dirent *);
|
|
typedef int (*scandir_compar_f)(const struct __sanitizer_dirent **,
|
|
const struct __sanitizer_dirent **);
|
|
|
|
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(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(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);
|
|
}
|
|
|
|
INTERCEPTOR(int, scandir, char *dirp, __sanitizer_dirent ***namelist,
|
|
scandir_filter_f filter, scandir_compar_f compar) {
|
|
void *ctx;
|
|
COMMON_INTERCEPTOR_ENTER(ctx, scandir, dirp, namelist, filter, compar);
|
|
if (dirp) COMMON_INTERCEPTOR_READ_RANGE(ctx, dirp, internal_strlen(dirp) + 1);
|
|
scandir_filter = filter;
|
|
scandir_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(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);
|
|
for (int i = 0; i < res; ++i)
|
|
COMMON_INTERCEPTOR_WRITE_RANGE(ctx, (*namelist)[i],
|
|
(*namelist)[i]->d_reclen);
|
|
}
|
|
return res;
|
|
}
|
|
#define INIT_SCANDIR COMMON_INTERCEPT_FUNCTION(scandir);
|
|
#else
|
|
#define INIT_SCANDIR
|
|
#endif
|
|
|
|
#if SANITIZER_INTERCEPT_SCANDIR64
|
|
typedef int (*scandir64_filter_f)(const struct __sanitizer_dirent64 *);
|
|
typedef int (*scandir64_compar_f)(const struct __sanitizer_dirent64 **,
|
|
const struct __sanitizer_dirent64 **);
|
|
|
|
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(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(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);
|
|
}
|
|
|
|
INTERCEPTOR(int, scandir64, char *dirp, __sanitizer_dirent64 ***namelist,
|
|
scandir64_filter_f filter, scandir64_compar_f compar) {
|
|
void *ctx;
|
|
COMMON_INTERCEPTOR_ENTER(ctx, scandir64, dirp, namelist, filter, compar);
|
|
if (dirp) COMMON_INTERCEPTOR_READ_RANGE(ctx, dirp, internal_strlen(dirp) + 1);
|
|
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 : 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);
|
|
for (int i = 0; i < res; ++i)
|
|
COMMON_INTERCEPTOR_WRITE_RANGE(ctx, (*namelist)[i],
|
|
(*namelist)[i]->d_reclen);
|
|
}
|
|
return res;
|
|
}
|
|
#define INIT_SCANDIR64 COMMON_INTERCEPT_FUNCTION(scandir64);
|
|
#else
|
|
#define INIT_SCANDIR64
|
|
#endif
|
|
|
|
#if SANITIZER_INTERCEPT_GETGROUPS
|
|
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 >= 0 && lst && size > 0)
|
|
COMMON_INTERCEPTOR_WRITE_RANGE(ctx, lst, res * sizeof(*lst));
|
|
return res;
|
|
}
|
|
#define INIT_GETGROUPS COMMON_INTERCEPT_FUNCTION(getgroups);
|
|
#else
|
|
#define INIT_GETGROUPS
|
|
#endif
|
|
|
|
#if SANITIZER_INTERCEPT_POLL
|
|
static void read_pollfd(void *ctx, __sanitizer_pollfd *fds,
|
|
__sanitizer_nfds_t nfds) {
|
|
for (unsigned i = 0; i < nfds; ++i) {
|
|
COMMON_INTERCEPTOR_READ_RANGE(ctx, &fds[i].fd, sizeof(fds[i].fd));
|
|
COMMON_INTERCEPTOR_READ_RANGE(ctx, &fds[i].events, sizeof(fds[i].events));
|
|
}
|
|
}
|
|
|
|
static void write_pollfd(void *ctx, __sanitizer_pollfd *fds,
|
|
__sanitizer_nfds_t nfds) {
|
|
for (unsigned i = 0; i < nfds; ++i)
|
|
COMMON_INTERCEPTOR_WRITE_RANGE(ctx, &fds[i].revents,
|
|
sizeof(fds[i].revents));
|
|
}
|
|
|
|
INTERCEPTOR(int, poll, __sanitizer_pollfd *fds, __sanitizer_nfds_t nfds,
|
|
int timeout) {
|
|
void *ctx;
|
|
COMMON_INTERCEPTOR_ENTER(ctx, poll, fds, nfds, timeout);
|
|
if (fds && nfds) read_pollfd(ctx, fds, nfds);
|
|
int res = COMMON_INTERCEPTOR_BLOCK_REAL(poll)(fds, nfds, timeout);
|
|
if (fds && nfds) write_pollfd(ctx, fds, nfds);
|
|
return res;
|
|
}
|
|
#define INIT_POLL COMMON_INTERCEPT_FUNCTION(poll);
|
|
#else
|
|
#define INIT_POLL
|
|
#endif
|
|
|
|
#if SANITIZER_INTERCEPT_PPOLL
|
|
INTERCEPTOR(int, ppoll, __sanitizer_pollfd *fds, __sanitizer_nfds_t nfds,
|
|
void *timeout_ts, __sanitizer_sigset_t *sigmask) {
|
|
void *ctx;
|
|
COMMON_INTERCEPTOR_ENTER(ctx, ppoll, fds, nfds, timeout_ts, sigmask);
|
|
if (fds && nfds) read_pollfd(ctx, fds, nfds);
|
|
if (timeout_ts)
|
|
COMMON_INTERCEPTOR_READ_RANGE(ctx, timeout_ts, struct_timespec_sz);
|
|
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);
|
|
return res;
|
|
}
|
|
#define INIT_PPOLL COMMON_INTERCEPT_FUNCTION(ppoll);
|
|
#else
|
|
#define INIT_PPOLL
|
|
#endif
|
|
|
|
#if SANITIZER_INTERCEPT_WORDEXP
|
|
INTERCEPTOR(int, wordexp, char *s, __sanitizer_wordexp_t *p, int flags) {
|
|
void *ctx;
|
|
COMMON_INTERCEPTOR_ENTER(ctx, wordexp, s, p, flags);
|
|
if (s) COMMON_INTERCEPTOR_READ_RANGE(ctx, s, internal_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));
|
|
uptr we_wordc =
|
|
((flags & wordexp_wrde_dooffs) ? p->we_offs : 0) + p->we_wordc;
|
|
COMMON_INTERCEPTOR_WRITE_RANGE(ctx, p->we_wordv,
|
|
sizeof(*p->we_wordv) * (we_wordc + 1));
|
|
for (uptr i = 0; i < we_wordc; ++i) {
|
|
char *w = p->we_wordv[i];
|
|
if (w) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, w, internal_strlen(w) + 1);
|
|
}
|
|
}
|
|
return res;
|
|
}
|
|
#define INIT_WORDEXP COMMON_INTERCEPT_FUNCTION(wordexp);
|
|
#else
|
|
#define INIT_WORDEXP
|
|
#endif
|
|
|
|
#if SANITIZER_INTERCEPT_SIGWAIT
|
|
INTERCEPTOR(int, sigwait, __sanitizer_sigset_t *set, int *sig) {
|
|
void *ctx;
|
|
COMMON_INTERCEPTOR_ENTER(ctx, sigwait, set, sig);
|
|
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 = COMMON_INTERCEPTOR_BLOCK_REAL(sigwait)(set, sig);
|
|
if (!res && sig) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, sig, sizeof(*sig));
|
|
return res;
|
|
}
|
|
#define INIT_SIGWAIT COMMON_INTERCEPT_FUNCTION(sigwait);
|
|
#else
|
|
#define INIT_SIGWAIT
|
|
#endif
|
|
|
|
#if SANITIZER_INTERCEPT_SIGWAITINFO
|
|
INTERCEPTOR(int, sigwaitinfo, __sanitizer_sigset_t *set, void *info) {
|
|
void *ctx;
|
|
COMMON_INTERCEPTOR_ENTER(ctx, sigwaitinfo, set, info);
|
|
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 = COMMON_INTERCEPTOR_BLOCK_REAL(sigwaitinfo)(set, info);
|
|
if (res > 0 && info) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, info, siginfo_t_sz);
|
|
return res;
|
|
}
|
|
#define INIT_SIGWAITINFO COMMON_INTERCEPT_FUNCTION(sigwaitinfo);
|
|
#else
|
|
#define INIT_SIGWAITINFO
|
|
#endif
|
|
|
|
#if SANITIZER_INTERCEPT_SIGTIMEDWAIT
|
|
INTERCEPTOR(int, sigtimedwait, __sanitizer_sigset_t *set, void *info,
|
|
void *timeout) {
|
|
void *ctx;
|
|
COMMON_INTERCEPTOR_ENTER(ctx, sigtimedwait, set, info, timeout);
|
|
if (timeout) COMMON_INTERCEPTOR_READ_RANGE(ctx, timeout, struct_timespec_sz);
|
|
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 = COMMON_INTERCEPTOR_BLOCK_REAL(sigtimedwait)(set, info, timeout);
|
|
if (res > 0 && info) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, info, siginfo_t_sz);
|
|
return res;
|
|
}
|
|
#define INIT_SIGTIMEDWAIT COMMON_INTERCEPT_FUNCTION(sigtimedwait);
|
|
#else
|
|
#define INIT_SIGTIMEDWAIT
|
|
#endif
|
|
|
|
#if SANITIZER_INTERCEPT_SIGSETOPS
|
|
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;
|
|
}
|
|
#define INIT_SIGSETOPS \
|
|
COMMON_INTERCEPT_FUNCTION(sigemptyset); \
|
|
COMMON_INTERCEPT_FUNCTION(sigfillset);
|
|
#else
|
|
#define INIT_SIGSETOPS
|
|
#endif
|
|
|
|
#if SANITIZER_INTERCEPT_SIGSET_LOGICOPS
|
|
INTERCEPTOR(int, sigandset, __sanitizer_sigset_t *dst,
|
|
__sanitizer_sigset_t *src1, __sanitizer_sigset_t *src2) {
|
|
void *ctx;
|
|
COMMON_INTERCEPTOR_ENTER(ctx, sigandset, dst, src1, src2);
|
|
if (src1)
|
|
COMMON_INTERCEPTOR_READ_RANGE(ctx, src1, sizeof(*src1));
|
|
if (src2)
|
|
COMMON_INTERCEPTOR_READ_RANGE(ctx, src2, sizeof(*src2));
|
|
int res = REAL(sigandset)(dst, src1, src2);
|
|
if (!res && dst)
|
|
COMMON_INTERCEPTOR_WRITE_RANGE(ctx, dst, sizeof(*dst));
|
|
return res;
|
|
}
|
|
|
|
INTERCEPTOR(int, sigorset, __sanitizer_sigset_t *dst,
|
|
__sanitizer_sigset_t *src1, __sanitizer_sigset_t *src2) {
|
|
void *ctx;
|
|
COMMON_INTERCEPTOR_ENTER(ctx, sigorset, dst, src1, src2);
|
|
if (src1)
|
|
COMMON_INTERCEPTOR_READ_RANGE(ctx, src1, sizeof(*src1));
|
|
if (src2)
|
|
COMMON_INTERCEPTOR_READ_RANGE(ctx, src2, sizeof(*src2));
|
|
int res = REAL(sigorset)(dst, src1, src2);
|
|
if (!res && dst)
|
|
COMMON_INTERCEPTOR_WRITE_RANGE(ctx, dst, sizeof(*dst));
|
|
return res;
|
|
}
|
|
#define INIT_SIGSET_LOGICOPS \
|
|
COMMON_INTERCEPT_FUNCTION(sigandset); \
|
|
COMMON_INTERCEPT_FUNCTION(sigorset);
|
|
#else
|
|
#define INIT_SIGSET_LOGICOPS
|
|
#endif
|
|
|
|
#if SANITIZER_INTERCEPT_SIGPENDING
|
|
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;
|
|
}
|
|
#define INIT_SIGPENDING COMMON_INTERCEPT_FUNCTION(sigpending);
|
|
#else
|
|
#define INIT_SIGPENDING
|
|
#endif
|
|
|
|
#if SANITIZER_INTERCEPT_SIGPROCMASK
|
|
INTERCEPTOR(int, sigprocmask, int how, __sanitizer_sigset_t *set,
|
|
__sanitizer_sigset_t *oldset) {
|
|
void *ctx;
|
|
COMMON_INTERCEPTOR_ENTER(ctx, sigprocmask, 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(sigprocmask)(how, set, oldset);
|
|
if (!res && oldset)
|
|
COMMON_INTERCEPTOR_WRITE_RANGE(ctx, oldset, sizeof(*oldset));
|
|
return res;
|
|
}
|
|
#define INIT_SIGPROCMASK COMMON_INTERCEPT_FUNCTION(sigprocmask);
|
|
#else
|
|
#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));
|
|
return res;
|
|
}
|
|
|
|
INTERCEPTOR(char **, backtrace_symbols, void **buffer, int size) {
|
|
void *ctx;
|
|
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));
|
|
for (int i = 0; i < size; ++i)
|
|
COMMON_INTERCEPTOR_WRITE_RANGE(ctx, res[i], internal_strlen(res[i]) + 1);
|
|
}
|
|
return res;
|
|
}
|
|
#define INIT_BACKTRACE \
|
|
COMMON_INTERCEPT_FUNCTION(backtrace); \
|
|
COMMON_INTERCEPT_FUNCTION(backtrace_symbols);
|
|
#else
|
|
#define INIT_BACKTRACE
|
|
#endif
|
|
|
|
#if SANITIZER_INTERCEPT__EXIT
|
|
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 COMMON_INTERCEPT_FUNCTION(_exit);
|
|
#else
|
|
#define INIT__EXIT
|
|
#endif
|
|
|
|
#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_POST_LOCK(ctx, m);
|
|
if (res == errno_EINVAL)
|
|
COMMON_INTERCEPTOR_MUTEX_INVALID(ctx, m);
|
|
return res;
|
|
}
|
|
|
|
INTERCEPTOR(int, pthread_mutex_unlock, void *m) {
|
|
void *ctx;
|
|
COMMON_INTERCEPTOR_ENTER(ctx, pthread_mutex_unlock, m);
|
|
COMMON_INTERCEPTOR_MUTEX_UNLOCK(ctx, 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 \
|
|
COMMON_INTERCEPT_FUNCTION(pthread_mutex_unlock)
|
|
#else
|
|
#define INIT_PTHREAD_MUTEX_LOCK
|
|
#define INIT_PTHREAD_MUTEX_UNLOCK
|
|
#endif
|
|
|
|
#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_POST_LOCK(ctx, m);
|
|
if (res == errno_EINVAL)
|
|
COMMON_INTERCEPTOR_MUTEX_INVALID(ctx, m);
|
|
return res;
|
|
}
|
|
|
|
INTERCEPTOR(int, __pthread_mutex_unlock, void *m) {
|
|
void *ctx;
|
|
COMMON_INTERCEPTOR_ENTER(ctx, __pthread_mutex_unlock, m);
|
|
COMMON_INTERCEPTOR_MUTEX_UNLOCK(ctx, 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 \
|
|
COMMON_INTERCEPT_FUNCTION(__pthread_mutex_unlock)
|
|
#else
|
|
#define INIT___PTHREAD_MUTEX_LOCK
|
|
#define INIT___PTHREAD_MUTEX_UNLOCK
|
|
#endif
|
|
|
|
#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___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___LIBC_MUTEX_LOCK
|
|
#define INIT___LIBC_MUTEX_UNLOCK
|
|
#define INIT___LIBC_THR_SETCANCELSTATE
|
|
#endif
|
|
|
|
#if SANITIZER_INTERCEPT_GETMNTENT || SANITIZER_INTERCEPT_GETMNTENT_R
|
|
static void write_mntent(void *ctx, __sanitizer_mntent *mnt) {
|
|
COMMON_INTERCEPTOR_WRITE_RANGE(ctx, mnt, sizeof(*mnt));
|
|
if (mnt->mnt_fsname)
|
|
COMMON_INTERCEPTOR_WRITE_RANGE(ctx, mnt->mnt_fsname,
|
|
internal_strlen(mnt->mnt_fsname) + 1);
|
|
if (mnt->mnt_dir)
|
|
COMMON_INTERCEPTOR_WRITE_RANGE(ctx, mnt->mnt_dir,
|
|
internal_strlen(mnt->mnt_dir) + 1);
|
|
if (mnt->mnt_type)
|
|
COMMON_INTERCEPTOR_WRITE_RANGE(ctx, mnt->mnt_type,
|
|
internal_strlen(mnt->mnt_type) + 1);
|
|
if (mnt->mnt_opts)
|
|
COMMON_INTERCEPTOR_WRITE_RANGE(ctx, mnt->mnt_opts,
|
|
internal_strlen(mnt->mnt_opts) + 1);
|
|
}
|
|
#endif
|
|
|
|
#if SANITIZER_INTERCEPT_GETMNTENT
|
|
INTERCEPTOR(__sanitizer_mntent *, getmntent, void *fp) {
|
|
void *ctx;
|
|
COMMON_INTERCEPTOR_ENTER(ctx, getmntent, fp);
|
|
__sanitizer_mntent *res = REAL(getmntent)(fp);
|
|
if (res) write_mntent(ctx, res);
|
|
return res;
|
|
}
|
|
#define INIT_GETMNTENT COMMON_INTERCEPT_FUNCTION(getmntent);
|
|
#else
|
|
#define INIT_GETMNTENT
|
|
#endif
|
|
|
|
#if SANITIZER_INTERCEPT_GETMNTENT_R
|
|
INTERCEPTOR(__sanitizer_mntent *, getmntent_r, void *fp,
|
|
__sanitizer_mntent *mntbuf, char *buf, int buflen) {
|
|
void *ctx;
|
|
COMMON_INTERCEPTOR_ENTER(ctx, getmntent_r, fp, mntbuf, buf, buflen);
|
|
__sanitizer_mntent *res = REAL(getmntent_r)(fp, mntbuf, buf, buflen);
|
|
if (res) write_mntent(ctx, res);
|
|
return res;
|
|
}
|
|
#define INIT_GETMNTENT_R COMMON_INTERCEPT_FUNCTION(getmntent_r);
|
|
#else
|
|
#define INIT_GETMNTENT_R
|
|
#endif
|
|
|
|
#if SANITIZER_INTERCEPT_STATFS
|
|
INTERCEPTOR(int, statfs, char *path, void *buf) {
|
|
void *ctx;
|
|
COMMON_INTERCEPTOR_ENTER(ctx, statfs, path, buf);
|
|
if (path) COMMON_INTERCEPTOR_READ_RANGE(ctx, path, internal_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;
|
|
}
|
|
#define INIT_STATFS \
|
|
COMMON_INTERCEPT_FUNCTION(statfs); \
|
|
COMMON_INTERCEPT_FUNCTION(fstatfs);
|
|
#else
|
|
#define INIT_STATFS
|
|
#endif
|
|
|
|
#if SANITIZER_INTERCEPT_STATFS64
|
|
INTERCEPTOR(int, statfs64, char *path, void *buf) {
|
|
void *ctx;
|
|
COMMON_INTERCEPTOR_ENTER(ctx, statfs64, path, buf);
|
|
if (path) COMMON_INTERCEPTOR_READ_RANGE(ctx, path, internal_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;
|
|
}
|
|
#define INIT_STATFS64 \
|
|
COMMON_INTERCEPT_FUNCTION(statfs64); \
|
|
COMMON_INTERCEPT_FUNCTION(fstatfs64);
|
|
#else
|
|
#define INIT_STATFS64
|
|
#endif
|
|
|
|
#if SANITIZER_INTERCEPT_STATVFS
|
|
INTERCEPTOR(int, statvfs, char *path, void *buf) {
|
|
void *ctx;
|
|
COMMON_INTERCEPTOR_ENTER(ctx, statvfs, path, buf);
|
|
if (path) COMMON_INTERCEPTOR_READ_RANGE(ctx, path, internal_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 (fd >= 0)
|
|
COMMON_INTERCEPTOR_FD_ACQUIRE(ctx, fd);
|
|
}
|
|
return res;
|
|
}
|
|
#define INIT_STATVFS \
|
|
COMMON_INTERCEPT_FUNCTION(statvfs); \
|
|
COMMON_INTERCEPT_FUNCTION(fstatvfs);
|
|
#else
|
|
#define INIT_STATVFS
|
|
#endif
|
|
|
|
#if SANITIZER_INTERCEPT_STATVFS64
|
|
INTERCEPTOR(int, statvfs64, char *path, void *buf) {
|
|
void *ctx;
|
|
COMMON_INTERCEPTOR_ENTER(ctx, statvfs64, path, buf);
|
|
if (path) COMMON_INTERCEPTOR_READ_RANGE(ctx, path, internal_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_STATVFS64 \
|
|
COMMON_INTERCEPT_FUNCTION(statvfs64); \
|
|
COMMON_INTERCEPT_FUNCTION(fstatvfs64);
|
|
#else
|
|
#define INIT_STATVFS64
|
|
#endif
|
|
|
|
#if SANITIZER_INTERCEPT_INITGROUPS
|
|
INTERCEPTOR(int, initgroups, char *user, u32 group) {
|
|
void *ctx;
|
|
COMMON_INTERCEPTOR_ENTER(ctx, initgroups, user, group);
|
|
if (user) COMMON_INTERCEPTOR_READ_RANGE(ctx, user, internal_strlen(user) + 1);
|
|
int res = REAL(initgroups)(user, group);
|
|
return res;
|
|
}
|
|
#define INIT_INITGROUPS COMMON_INTERCEPT_FUNCTION(initgroups);
|
|
#else
|
|
#define INIT_INITGROUPS
|
|
#endif
|
|
|
|
#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(res, internal_strlen(res) + 1);
|
|
return res;
|
|
}
|
|
INTERCEPTOR(__sanitizer_ether_addr *, ether_aton, char *buf) {
|
|
void *ctx;
|
|
COMMON_INTERCEPTOR_ENTER(ctx, ether_aton, buf);
|
|
if (buf) COMMON_INTERCEPTOR_READ_RANGE(ctx, buf, internal_strlen(buf) + 1);
|
|
__sanitizer_ether_addr *res = REAL(ether_aton)(buf);
|
|
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, internal_strlen(hostname) + 1);
|
|
return res;
|
|
}
|
|
INTERCEPTOR(int, ether_hostton, char *hostname, __sanitizer_ether_addr *addr) {
|
|
void *ctx;
|
|
COMMON_INTERCEPTOR_ENTER(ctx, ether_hostton, hostname, addr);
|
|
if (hostname)
|
|
COMMON_INTERCEPTOR_READ_RANGE(ctx, hostname, internal_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;
|
|
}
|
|
INTERCEPTOR(int, ether_line, char *line, __sanitizer_ether_addr *addr,
|
|
char *hostname) {
|
|
void *ctx;
|
|
COMMON_INTERCEPTOR_ENTER(ctx, ether_line, line, addr, hostname);
|
|
if (line) COMMON_INTERCEPTOR_READ_RANGE(ctx, line, internal_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));
|
|
if (hostname)
|
|
COMMON_INTERCEPTOR_WRITE_RANGE(ctx, hostname, internal_strlen(hostname) + 1);
|
|
}
|
|
return res;
|
|
}
|
|
#define INIT_ETHER_HOST \
|
|
COMMON_INTERCEPT_FUNCTION(ether_ntohost); \
|
|
COMMON_INTERCEPT_FUNCTION(ether_hostton); \
|
|
COMMON_INTERCEPT_FUNCTION(ether_line);
|
|
#else
|
|
#define INIT_ETHER_HOST
|
|
#endif
|
|
|
|
#if SANITIZER_INTERCEPT_ETHER_R
|
|
INTERCEPTOR(char *, ether_ntoa_r, __sanitizer_ether_addr *addr, char *buf) {
|
|
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, internal_strlen(res) + 1);
|
|
return res;
|
|
}
|
|
INTERCEPTOR(__sanitizer_ether_addr *, ether_aton_r, char *buf,
|
|
__sanitizer_ether_addr *addr) {
|
|
void *ctx;
|
|
COMMON_INTERCEPTOR_ENTER(ctx, ether_aton_r, buf, addr);
|
|
if (buf) COMMON_INTERCEPTOR_READ_RANGE(ctx, buf, internal_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;
|
|
}
|
|
#define INIT_ETHER_R \
|
|
COMMON_INTERCEPT_FUNCTION(ether_ntoa_r); \
|
|
COMMON_INTERCEPT_FUNCTION(ether_aton_r);
|
|
#else
|
|
#define INIT_ETHER_R
|
|
#endif
|
|
|
|
#if SANITIZER_INTERCEPT_SHMCTL
|
|
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;
|
|
if (cmd == shmctl_ipc_stat || cmd == shmctl_shm_stat)
|
|
sz = sizeof(__sanitizer_shmid_ds);
|
|
else if (cmd == shmctl_ipc_info)
|
|
sz = struct_shminfo_sz;
|
|
else if (cmd == shmctl_shm_info)
|
|
sz = struct_shm_info_sz;
|
|
if (sz) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, buf, sz);
|
|
}
|
|
return res;
|
|
}
|
|
#define INIT_SHMCTL COMMON_INTERCEPT_FUNCTION(shmctl);
|
|
#else
|
|
#define INIT_SHMCTL
|
|
#endif
|
|
|
|
#if SANITIZER_INTERCEPT_RANDOM_R
|
|
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));
|
|
return res;
|
|
}
|
|
#define INIT_RANDOM_R COMMON_INTERCEPT_FUNCTION(random_r);
|
|
#else
|
|
#define INIT_RANDOM_R
|
|
#endif
|
|
|
|
// 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(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));
|
|
if (size) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, size, sizeof(*size));
|
|
}
|
|
return res;
|
|
}
|
|
|
|
// 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.
|
|
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_getscope); \
|
|
COMMON_INTERCEPT_FUNCTION(pthread_attr_getstacksize); \
|
|
COMMON_INTERCEPT_FUNCTION(pthread_attr_getstack);
|
|
#else
|
|
#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))
|
|
|
|
#define INIT_PTHREAD_ATTR_GETINHERITSCHED \
|
|
COMMON_INTERCEPT_FUNCTION(pthread_attr_getinheritsched);
|
|
#else
|
|
#define INIT_PTHREAD_ATTR_GETINHERITSCHED
|
|
#endif
|
|
|
|
#if SANITIZER_INTERCEPT_PTHREAD_ATTR_GETAFFINITY_NP
|
|
INTERCEPTOR(int, pthread_attr_getaffinity_np, void *attr, SIZE_T cpusetsize,
|
|
void *cpuset) {
|
|
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);
|
|
return res;
|
|
}
|
|
|
|
#define INIT_PTHREAD_ATTR_GETAFFINITY_NP \
|
|
COMMON_INTERCEPT_FUNCTION(pthread_attr_getaffinity_np);
|
|
#else
|
|
#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;
|
|
COMMON_INTERCEPTOR_ENTER(ctx, tmpnam, s);
|
|
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, internal_strlen(s) + 1);
|
|
else
|
|
COMMON_INTERCEPTOR_INITIALIZE_RANGE(res, internal_strlen(res) + 1);
|
|
}
|
|
return res;
|
|
}
|
|
#define INIT_TMPNAM COMMON_INTERCEPT_FUNCTION(tmpnam);
|
|
#else
|
|
#define INIT_TMPNAM
|
|
#endif
|
|
|
|
#if SANITIZER_INTERCEPT_TMPNAM_R
|
|
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, internal_strlen(s) + 1);
|
|
return res;
|
|
}
|
|
#define INIT_TMPNAM_R COMMON_INTERCEPT_FUNCTION(tmpnam_r);
|
|
#else
|
|
#define INIT_TMPNAM_R
|
|
#endif
|
|
|
|
#if SANITIZER_INTERCEPT_PTSNAME
|
|
INTERCEPTOR(char *, ptsname, int fd) {
|
|
void *ctx;
|
|
COMMON_INTERCEPTOR_ENTER(ctx, ptsname, fd);
|
|
char *res = REAL(ptsname)(fd);
|
|
if (res != nullptr)
|
|
COMMON_INTERCEPTOR_INITIALIZE_RANGE(res, internal_strlen(res) + 1);
|
|
return res;
|
|
}
|
|
#define INIT_PTSNAME COMMON_INTERCEPT_FUNCTION(ptsname);
|
|
#else
|
|
#define INIT_PTSNAME
|
|
#endif
|
|
|
|
#if SANITIZER_INTERCEPT_PTSNAME_R
|
|
INTERCEPTOR(int, ptsname_r, int fd, char *name, SIZE_T namesize) {
|
|
void *ctx;
|
|
COMMON_INTERCEPTOR_ENTER(ctx, ptsname_r, fd, name, namesize);
|
|
int res = REAL(ptsname_r)(fd, name, namesize);
|
|
if (res == 0)
|
|
COMMON_INTERCEPTOR_WRITE_RANGE(ctx, name, internal_strlen(name) + 1);
|
|
return res;
|
|
}
|
|
#define INIT_PTSNAME_R COMMON_INTERCEPT_FUNCTION(ptsname_r);
|
|
#else
|
|
#define INIT_PTSNAME_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, internal_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, internal_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;
|
|
COMMON_INTERCEPTOR_ENTER(ctx, tempnam, dir, pfx);
|
|
if (dir) COMMON_INTERCEPTOR_READ_RANGE(ctx, dir, internal_strlen(dir) + 1);
|
|
if (pfx) COMMON_INTERCEPTOR_READ_RANGE(ctx, pfx, internal_strlen(pfx) + 1);
|
|
char *res = REAL(tempnam)(dir, pfx);
|
|
if (res) COMMON_INTERCEPTOR_INITIALIZE_RANGE(res, internal_strlen(res) + 1);
|
|
return res;
|
|
}
|
|
#define INIT_TEMPNAM COMMON_INTERCEPT_FUNCTION(tempnam);
|
|
#else
|
|
#define INIT_TEMPNAM
|
|
#endif
|
|
|
|
#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_LDBL(sincosl);
|
|
#else
|
|
#define INIT_SINCOS
|
|
#endif
|
|
|
|
#if SANITIZER_INTERCEPT_REMQUO
|
|
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_REMQUOL \
|
|
COMMON_INTERCEPT_FUNCTION_LDBL(remquol);
|
|
#else
|
|
#define INIT_REMQUOL
|
|
#endif
|
|
|
|
#if SANITIZER_INTERCEPT_LGAMMA
|
|
extern int signgam;
|
|
INTERCEPTOR(double, lgamma, double x) {
|
|
void *ctx;
|
|
COMMON_INTERCEPTOR_ENTER(ctx, lgamma, x);
|
|
double res = REAL(lgamma)(x);
|
|
COMMON_INTERCEPTOR_WRITE_RANGE(ctx, &signgam, sizeof(signgam));
|
|
return res;
|
|
}
|
|
INTERCEPTOR(float, lgammaf, float x) {
|
|
void *ctx;
|
|
COMMON_INTERCEPTOR_ENTER(ctx, lgammaf, x);
|
|
float res = REAL(lgammaf)(x);
|
|
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);
|
|
long double res = REAL(lgammal)(x);
|
|
COMMON_INTERCEPTOR_WRITE_RANGE(ctx, &signgam, sizeof(signgam));
|
|
return res;
|
|
}
|
|
#define INIT_LGAMMAL \
|
|
COMMON_INTERCEPT_FUNCTION_LDBL(lgammal);
|
|
#else
|
|
#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_LGAMMAL_R COMMON_INTERCEPT_FUNCTION_LDBL(lgammal_r);
|
|
#else
|
|
#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 \
|
|
COMMON_INTERCEPT_FUNCTION(drand48_r); \
|
|
COMMON_INTERCEPT_FUNCTION(lrand48_r);
|
|
#else
|
|
#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));
|
|
COMMON_INTERCEPTOR_WRITE_RANGE(ctx, n, sizeof(*n));
|
|
COMMON_INTERCEPTOR_WRITE_RANGE(ctx, *lineptr, res + 1);
|
|
}
|
|
return res;
|
|
}
|
|
|
|
// 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; \
|
|
}
|
|
|
|
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
|
|
#endif
|
|
|
|
#if SANITIZER_INTERCEPT_ICONV
|
|
INTERCEPTOR(SIZE_T, iconv, void *cd, char **inbuf, SIZE_T *inbytesleft,
|
|
char **outbuf, SIZE_T *outbytesleft) {
|
|
void *ctx;
|
|
COMMON_INTERCEPTOR_ENTER(ctx, iconv, cd, inbuf, inbytesleft, outbuf,
|
|
outbytesleft);
|
|
if (inbytesleft)
|
|
COMMON_INTERCEPTOR_READ_RANGE(ctx, inbytesleft, sizeof(*inbytesleft));
|
|
if (inbuf && inbytesleft)
|
|
COMMON_INTERCEPTOR_READ_RANGE(ctx, *inbuf, *inbytesleft);
|
|
if (outbytesleft)
|
|
COMMON_INTERCEPTOR_READ_RANGE(ctx, outbytesleft, sizeof(*outbytesleft));
|
|
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 (outbuf && *outbuf > outbuf_orig) {
|
|
SIZE_T sz = (char *)*outbuf - (char *)outbuf_orig;
|
|
COMMON_INTERCEPTOR_WRITE_RANGE(ctx, outbuf_orig, sz);
|
|
}
|
|
return res;
|
|
}
|
|
#define INIT_ICONV COMMON_INTERCEPT_FUNCTION(iconv);
|
|
#else
|
|
#define INIT_ICONV
|
|
#endif
|
|
|
|
#if SANITIZER_INTERCEPT_TIMES
|
|
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);
|
|
return res;
|
|
}
|
|
#define INIT_TIMES COMMON_INTERCEPT_FUNCTION(times);
|
|
#else
|
|
#define INIT_TIMES
|
|
#endif
|
|
|
|
#if SANITIZER_S390 && \
|
|
(SANITIZER_INTERCEPT_TLS_GET_ADDR || SANITIZER_INTERCEPT_TLS_GET_OFFSET)
|
|
extern "C" uptr __tls_get_offset_wrapper(void *arg, uptr (*fn)(void *arg));
|
|
DEFINE_REAL(uptr, __tls_get_offset, void *arg)
|
|
#endif
|
|
|
|
#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.
|
|
#define INIT_TLS_GET_ADDR COMMON_INTERCEPT_FUNCTION(__tls_get_offset)
|
|
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;
|
|
}
|
|
#endif // SANITIZER_S390
|
|
#else
|
|
#define INIT_TLS_GET_ADDR
|
|
#endif
|
|
|
|
#if SANITIZER_S390 && \
|
|
(SANITIZER_INTERCEPT_TLS_GET_ADDR || SANITIZER_INTERCEPT_TLS_GET_OFFSET)
|
|
extern "C" uptr __tls_get_offset(void *arg);
|
|
extern "C" uptr __interceptor___tls_get_offset(void *arg);
|
|
// 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
|
|
|
|
#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, internal_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, internal_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, internal_strlen(path) + 1);
|
|
if (name) COMMON_INTERCEPTOR_READ_RANGE(ctx, name, internal_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, internal_strlen(path) + 1);
|
|
if (name) COMMON_INTERCEPTOR_READ_RANGE(ctx, name, internal_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, internal_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,
|
|
internal_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, internal_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, internal_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, internal_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, internal_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_XDRREC
|
|
typedef int (*xdrrec_cb)(char*, char*, int);
|
|
struct XdrRecWrapper {
|
|
char *handle;
|
|
xdrrec_cb rd, wr;
|
|
};
|
|
typedef AddrHashMap<XdrRecWrapper *, 11> XdrRecWrapMap;
|
|
static XdrRecWrapMap *xdrrec_wrap_map;
|
|
|
|
static int xdrrec_wr_wrap(char *handle, char *buf, int count) {
|
|
COMMON_INTERCEPTOR_UNPOISON_PARAM(3);
|
|
COMMON_INTERCEPTOR_INITIALIZE_RANGE(buf, count);
|
|
XdrRecWrapper *wrap = (XdrRecWrapper *)handle;
|
|
return wrap->wr(wrap->handle, buf, count);
|
|
}
|
|
|
|
static int xdrrec_rd_wrap(char *handle, char *buf, int count) {
|
|
COMMON_INTERCEPTOR_UNPOISON_PARAM(3);
|
|
XdrRecWrapper *wrap = (XdrRecWrapper *)handle;
|
|
return wrap->rd(wrap->handle, buf, count);
|
|
}
|
|
|
|
// This doesn't apply to the solaris version as it has a different function
|
|
// signature.
|
|
INTERCEPTOR(void, xdrrec_create, __sanitizer_XDR *xdr, unsigned sndsize,
|
|
unsigned rcvsize, char *handle, int (*rd)(char*, char*, int),
|
|
int (*wr)(char*, char*, int)) {
|
|
void *ctx;
|
|
COMMON_INTERCEPTOR_ENTER(ctx, xdrrec_create, xdr, sndsize, rcvsize,
|
|
handle, rd, wr);
|
|
COMMON_INTERCEPTOR_READ_RANGE(ctx, &xdr->x_op, sizeof xdr->x_op);
|
|
|
|
// We can't allocate a wrapper on the stack, as the handle is used outside
|
|
// this stack frame. So we put it on the heap, and keep track of it with
|
|
// the HashMap (keyed by x_private). When we later need to xdr_destroy,
|
|
// we can index the map, free the wrapper, and then clean the map entry.
|
|
XdrRecWrapper *wrap_data =
|
|
(XdrRecWrapper *)InternalAlloc(sizeof(XdrRecWrapper));
|
|
wrap_data->handle = handle;
|
|
wrap_data->rd = rd;
|
|
wrap_data->wr = wr;
|
|
if (wr)
|
|
wr = xdrrec_wr_wrap;
|
|
if (rd)
|
|
rd = xdrrec_rd_wrap;
|
|
handle = (char *)wrap_data;
|
|
|
|
REAL(xdrrec_create)(xdr, sndsize, rcvsize, handle, rd, wr);
|
|
COMMON_INTERCEPTOR_WRITE_RANGE(ctx, xdr, sizeof *xdr);
|
|
|
|
XdrRecWrapMap::Handle wrap(xdrrec_wrap_map, xdr->x_private, false, true);
|
|
*wrap = wrap_data;
|
|
}
|
|
|
|
// We have to intercept this to be able to free wrapper memory;
|
|
// otherwise it's not necessary.
|
|
INTERCEPTOR(void, xdr_destroy, __sanitizer_XDR *xdr) {
|
|
void *ctx;
|
|
COMMON_INTERCEPTOR_ENTER(ctx, xdr_destroy, xdr);
|
|
|
|
XdrRecWrapMap::Handle wrap(xdrrec_wrap_map, xdr->x_private, true);
|
|
InternalFree(*wrap);
|
|
REAL(xdr_destroy)(xdr);
|
|
}
|
|
#define INIT_XDRREC_LINUX \
|
|
static u64 xdrrec_wrap_mem[sizeof(XdrRecWrapMap) / sizeof(u64) + 1]; \
|
|
xdrrec_wrap_map = new ((void *)&xdrrec_wrap_mem) XdrRecWrapMap(); \
|
|
COMMON_INTERCEPT_FUNCTION(xdrrec_create); \
|
|
COMMON_INTERCEPT_FUNCTION(xdr_destroy);
|
|
#else
|
|
#define INIT_XDRREC_LINUX
|
|
#endif
|
|
|
|
#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);
|
|
if (fp->_IO_write_base && fp->_IO_write_base < fp->_IO_write_end)
|
|
COMMON_INTERCEPTOR_INITIALIZE_RANGE(fp->_IO_write_base,
|
|
fp->_IO_write_end - fp->_IO_write_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, internal_strlen(path) + 1);
|
|
COMMON_INTERCEPTOR_READ_RANGE(ctx, mode, internal_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, internal_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, internal_strlen(path) + 1);
|
|
COMMON_INTERCEPTOR_READ_RANGE(ctx, mode, internal_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_FLOPEN
|
|
INTERCEPTOR(int, flopen, const char *path, int flags, ...) {
|
|
void *ctx;
|
|
va_list ap;
|
|
va_start(ap, flags);
|
|
u16 mode = static_cast<u16>(va_arg(ap, u32));
|
|
va_end(ap);
|
|
COMMON_INTERCEPTOR_ENTER(ctx, flopen, path, flags, mode);
|
|
if (path) {
|
|
COMMON_INTERCEPTOR_READ_RANGE(ctx, path, internal_strlen(path) + 1);
|
|
}
|
|
return REAL(flopen)(path, flags, mode);
|
|
}
|
|
|
|
INTERCEPTOR(int, flopenat, int dirfd, const char *path, int flags, ...) {
|
|
void *ctx;
|
|
va_list ap;
|
|
va_start(ap, flags);
|
|
u16 mode = static_cast<u16>(va_arg(ap, u32));
|
|
va_end(ap);
|
|
COMMON_INTERCEPTOR_ENTER(ctx, flopen, path, flags, mode);
|
|
if (path) {
|
|
COMMON_INTERCEPTOR_READ_RANGE(ctx, path, internal_strlen(path) + 1);
|
|
}
|
|
return REAL(flopenat)(dirfd, path, flags, mode);
|
|
}
|
|
|
|
#define INIT_FLOPEN \
|
|
COMMON_INTERCEPT_FUNCTION(flopen); \
|
|
COMMON_INTERCEPT_FUNCTION(flopenat);
|
|
#else
|
|
#define INIT_FLOPEN
|
|
#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, internal_strlen(path) + 1);
|
|
COMMON_INTERCEPTOR_READ_RANGE(ctx, mode, internal_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, internal_strlen(path) + 1);
|
|
COMMON_INTERCEPTOR_READ_RANGE(ctx, mode, internal_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);
|
|
if (fp)
|
|
unpoison_file(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);
|
|
if (fp)
|
|
unpoison_file(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);
|
|
void *res = COMMON_INTERCEPTOR_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, internal_strlen(prompt)+1);
|
|
char *res = REAL(getpass)(prompt);
|
|
if (res) COMMON_INTERCEPTOR_INITIALIZE_RANGE(res, internal_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 = 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;
|
|
}
|
|
|
|
INTERCEPTOR(__sanitizer_sem_t *, sem_open, const char *name, int oflag, ...) {
|
|
void *ctx;
|
|
va_list ap;
|
|
va_start(ap, oflag);
|
|
u32 mode = va_arg(ap, u32);
|
|
u32 value = va_arg(ap, u32);
|
|
COMMON_INTERCEPTOR_ENTER(ctx, sem_open, name, oflag, mode, value);
|
|
COMMON_INTERCEPTOR_READ_RANGE(ctx, name, internal_strlen(name) + 1);
|
|
__sanitizer_sem_t *s = REAL(sem_open)(name, oflag, mode, value);
|
|
if (s)
|
|
COMMON_INTERCEPTOR_INITIALIZE_RANGE(s, sizeof(*s));
|
|
va_end(ap);
|
|
return s;
|
|
}
|
|
|
|
INTERCEPTOR(int, sem_unlink, const char *name) {
|
|
void *ctx;
|
|
COMMON_INTERCEPTOR_ENTER(ctx, sem_unlink, name);
|
|
COMMON_INTERCEPTOR_READ_RANGE(ctx, name, internal_strlen(name) + 1);
|
|
return REAL(sem_unlink)(name);
|
|
}
|
|
|
|
# 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); \
|
|
COMMON_INTERCEPT_FUNCTION(sem_open); \
|
|
COMMON_INTERCEPT_FUNCTION(sem_unlink);
|
|
#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, internal_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, internal_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 (res >= 0 && 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 = internal_wcslen(src);
|
|
SIZE_T dst_size = internal_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);
|
|
}
|
|
|
|
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 = internal_wcsnlen(src, n);
|
|
SIZE_T dst_size = internal_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);
|
|
}
|
|
#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 = internal_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 internal_strlen(str); }
|
|
|
|
static SIZE_T RealStrLen(const wchar_t *str) { return internal_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, internal_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, internal_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, internal_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, internal_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, internal_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, internal_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, internal_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, internal_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, internal_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, internal_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, internal_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, internal_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, internal_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, flags);
|
|
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, 0);
|
|
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, flags);
|
|
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, internal_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, internal_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, internal_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, internal_strlen(name) + 1);
|
|
struct __sanitizer_ttyent *ttyent = REAL(getttynam)(name);
|
|
if (ttyent)
|
|
COMMON_INTERCEPTOR_WRITE_RANGE(ctx, ttyent, struct_ttyent_sz);
|
|
return ttyent;
|
|
}
|
|
#define INIT_TTYENT \
|
|
COMMON_INTERCEPT_FUNCTION(getttyent); \
|
|
COMMON_INTERCEPT_FUNCTION(getttynam);
|
|
#else
|
|
#define INIT_TTYENT
|
|
#endif
|
|
|
|
#if SANITIZER_INTERCEPT_TTYENTPATH
|
|
INTERCEPTOR(int, setttyentpath, char *path) {
|
|
void *ctx;
|
|
COMMON_INTERCEPTOR_ENTER(ctx, setttyentpath, path);
|
|
if (path)
|
|
COMMON_INTERCEPTOR_READ_RANGE(ctx, path, internal_strlen(path) + 1);
|
|
return REAL(setttyentpath)(path);
|
|
}
|
|
#define INIT_TTYENTPATH COMMON_INTERCEPT_FUNCTION(setttyentpath);
|
|
#else
|
|
#define INIT_TTYENTPATH
|
|
#endif
|
|
|
|
#if SANITIZER_INTERCEPT_PROTOENT
|
|
static void write_protoent(void *ctx, struct __sanitizer_protoent *p) {
|
|
COMMON_INTERCEPTOR_WRITE_RANGE(ctx, p, sizeof(*p));
|
|
|
|
COMMON_INTERCEPTOR_WRITE_RANGE(ctx, p->p_name, internal_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, internal_strlen(*pp) + 1);
|
|
|
|
COMMON_INTERCEPTOR_WRITE_RANGE(ctx, p->p_aliases,
|
|
pp_size * sizeof(char **));
|
|
}
|
|
|
|
INTERCEPTOR(struct __sanitizer_protoent *, getprotoent) {
|
|
void *ctx;
|
|
COMMON_INTERCEPTOR_ENTER(ctx, getprotoent);
|
|
struct __sanitizer_protoent *p = REAL(getprotoent)();
|
|
if (p)
|
|
write_protoent(ctx, p);
|
|
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, internal_strlen(name) + 1);
|
|
struct __sanitizer_protoent *p = REAL(getprotobyname)(name);
|
|
if (p)
|
|
write_protoent(ctx, p);
|
|
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)
|
|
write_protoent(ctx, p);
|
|
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_PROTOENT_R
|
|
INTERCEPTOR(int, getprotoent_r, struct __sanitizer_protoent *result_buf,
|
|
char *buf, SIZE_T buflen, struct __sanitizer_protoent **result) {
|
|
void *ctx;
|
|
COMMON_INTERCEPTOR_ENTER(ctx, getprotoent_r, result_buf, buf, buflen,
|
|
result);
|
|
int res = REAL(getprotoent_r)(result_buf, buf, buflen, result);
|
|
|
|
COMMON_INTERCEPTOR_WRITE_RANGE(ctx, result, sizeof *result);
|
|
if (!res && *result)
|
|
write_protoent(ctx, *result);
|
|
return res;
|
|
}
|
|
|
|
INTERCEPTOR(int, getprotobyname_r, const char *name,
|
|
struct __sanitizer_protoent *result_buf, char *buf, SIZE_T buflen,
|
|
struct __sanitizer_protoent **result) {
|
|
void *ctx;
|
|
COMMON_INTERCEPTOR_ENTER(ctx, getprotobyname_r, name, result_buf, buf,
|
|
buflen, result);
|
|
if (name)
|
|
COMMON_INTERCEPTOR_READ_RANGE(ctx, name, internal_strlen(name) + 1);
|
|
int res = REAL(getprotobyname_r)(name, result_buf, buf, buflen, result);
|
|
|
|
COMMON_INTERCEPTOR_WRITE_RANGE(ctx, result, sizeof *result);
|
|
if (!res && *result)
|
|
write_protoent(ctx, *result);
|
|
return res;
|
|
}
|
|
|
|
INTERCEPTOR(int, getprotobynumber_r, int num,
|
|
struct __sanitizer_protoent *result_buf, char *buf,
|
|
SIZE_T buflen, struct __sanitizer_protoent **result) {
|
|
void *ctx;
|
|
COMMON_INTERCEPTOR_ENTER(ctx, getprotobynumber_r, num, result_buf, buf,
|
|
buflen, result);
|
|
int res = REAL(getprotobynumber_r)(num, result_buf, buf, buflen, result);
|
|
|
|
COMMON_INTERCEPTOR_WRITE_RANGE(ctx, result, sizeof *result);
|
|
if (!res && *result)
|
|
write_protoent(ctx, *result);
|
|
return res;
|
|
}
|
|
|
|
#define INIT_PROTOENT_R \
|
|
COMMON_INTERCEPT_FUNCTION(getprotoent_r); \
|
|
COMMON_INTERCEPT_FUNCTION(getprotobyname_r); \
|
|
COMMON_INTERCEPT_FUNCTION(getprotobynumber_r);
|
|
#else
|
|
#define INIT_PROTOENT_R
|
|
#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, internal_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, internal_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, internal_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, internal_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, internal_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, internal_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, internal_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, SIZE_T size) {
|
|
void *ctx;
|
|
COMMON_INTERCEPTOR_ENTER(ctx, setbuffer, stream, buf, size);
|
|
REAL(setbuffer)(stream, buf, size);
|
|
if (buf) {
|
|
COMMON_INTERCEPTOR_WRITE_RANGE(ctx, buf, size);
|
|
}
|
|
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, internal_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, internal_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, internal_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_GLIBC_VER_MIN(regexec, "GLIBC_2.3.4"); \
|
|
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, internal_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, internal_strlen(str) + 1);
|
|
SSIZE_T res = REAL(regnsub)(buf, bufsiz, sub, rm, str);
|
|
if (res > 0 && buf)
|
|
COMMON_INTERCEPTOR_WRITE_RANGE(ctx, buf, internal_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, internal_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, internal_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, internal_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, internal_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, internal_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, internal_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, internal_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, internal_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, internal_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,
|
|
internal_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, internal_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, internal_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, internal_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, internal_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, internal_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, internal_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, internal_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, internal_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, internal_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, internal_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, internal_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, internal_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, internal_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, internal_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, internal_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, internal_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, internal_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, internal_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, internal_strlen(src) + 1);
|
|
if (extra)
|
|
COMMON_INTERCEPTOR_READ_RANGE(ctx, extra, internal_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, internal_strlen(src) + 1);
|
|
if (extra)
|
|
COMMON_INTERCEPTOR_READ_RANGE(ctx, extra, internal_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, internal_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, internal_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, internal_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, internal_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, internal_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, internal_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, internal_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, internal_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, internal_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, internal_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, internal_strlen(command) + 1);
|
|
if (type)
|
|
COMMON_INTERCEPTOR_READ_RANGE(ctx, type, internal_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, internal_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, internal_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, internal_strlen(*pa) + 1);
|
|
}
|
|
}
|
|
if (type)
|
|
COMMON_INTERCEPTOR_READ_RANGE(ctx, type, internal_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, internal_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, internal_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, internal_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, internal_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, internal_strlen(item) + 1);
|
|
char *res = REAL(sl_find)(sl, item);
|
|
if (res)
|
|
COMMON_INTERCEPTOR_WRITE_RANGE(ctx, res, internal_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
|
|
|
|
#if SANITIZER_INTERCEPT_CRYPT
|
|
INTERCEPTOR(char *, crypt, char *key, char *salt) {
|
|
void *ctx;
|
|
COMMON_INTERCEPTOR_ENTER(ctx, crypt, key, salt);
|
|
COMMON_INTERCEPTOR_READ_RANGE(ctx, key, internal_strlen(key) + 1);
|
|
COMMON_INTERCEPTOR_READ_RANGE(ctx, salt, internal_strlen(salt) + 1);
|
|
char *res = REAL(crypt)(key, salt);
|
|
if (res != nullptr)
|
|
COMMON_INTERCEPTOR_INITIALIZE_RANGE(res, internal_strlen(res) + 1);
|
|
return res;
|
|
}
|
|
#define INIT_CRYPT COMMON_INTERCEPT_FUNCTION(crypt);
|
|
#else
|
|
#define INIT_CRYPT
|
|
#endif
|
|
|
|
#if SANITIZER_INTERCEPT_CRYPT_R
|
|
INTERCEPTOR(char *, crypt_r, char *key, char *salt, void *data) {
|
|
void *ctx;
|
|
COMMON_INTERCEPTOR_ENTER(ctx, crypt_r, key, salt, data);
|
|
COMMON_INTERCEPTOR_READ_RANGE(ctx, key, internal_strlen(key) + 1);
|
|
COMMON_INTERCEPTOR_READ_RANGE(ctx, salt, internal_strlen(salt) + 1);
|
|
char *res = REAL(crypt_r)(key, salt, data);
|
|
if (res != nullptr) {
|
|
COMMON_INTERCEPTOR_WRITE_RANGE(ctx, data,
|
|
__sanitizer::struct_crypt_data_sz);
|
|
COMMON_INTERCEPTOR_INITIALIZE_RANGE(res, internal_strlen(res) + 1);
|
|
}
|
|
return res;
|
|
}
|
|
#define INIT_CRYPT_R COMMON_INTERCEPT_FUNCTION(crypt_r);
|
|
#else
|
|
#define INIT_CRYPT_R
|
|
#endif
|
|
|
|
#if SANITIZER_INTERCEPT_GETENTROPY
|
|
INTERCEPTOR(int, getentropy, void *buf, SIZE_T buflen) {
|
|
void *ctx;
|
|
COMMON_INTERCEPTOR_ENTER(ctx, getentropy, buf, buflen);
|
|
int r = REAL(getentropy)(buf, buflen);
|
|
if (r == 0) {
|
|
COMMON_INTERCEPTOR_WRITE_RANGE(ctx, buf, buflen);
|
|
}
|
|
return r;
|
|
}
|
|
#define INIT_GETENTROPY COMMON_INTERCEPT_FUNCTION(getentropy)
|
|
#else
|
|
#define INIT_GETENTROPY
|
|
#endif
|
|
|
|
#if SANITIZER_INTERCEPT_QSORT_R
|
|
typedef int (*qsort_r_compar_f)(const void *, const void *, void *);
|
|
struct qsort_r_compar_params {
|
|
SIZE_T size;
|
|
qsort_r_compar_f compar;
|
|
void *arg;
|
|
};
|
|
static int wrapped_qsort_r_compar(const void *a, const void *b, void *arg) {
|
|
qsort_r_compar_params *params = (qsort_r_compar_params *)arg;
|
|
COMMON_INTERCEPTOR_UNPOISON_PARAM(3);
|
|
COMMON_INTERCEPTOR_INITIALIZE_RANGE(a, params->size);
|
|
COMMON_INTERCEPTOR_INITIALIZE_RANGE(b, params->size);
|
|
return params->compar(a, b, params->arg);
|
|
}
|
|
|
|
INTERCEPTOR(void, qsort_r, void *base, SIZE_T nmemb, SIZE_T size,
|
|
qsort_r_compar_f compar, void *arg) {
|
|
void *ctx;
|
|
COMMON_INTERCEPTOR_ENTER(ctx, qsort_r, base, nmemb, size, compar, arg);
|
|
// Run the comparator over all array elements to detect any memory issues.
|
|
if (nmemb > 1) {
|
|
for (SIZE_T i = 0; i < nmemb - 1; ++i) {
|
|
void *p = (void *)((char *)base + i * size);
|
|
void *q = (void *)((char *)base + (i + 1) * size);
|
|
COMMON_INTERCEPTOR_UNPOISON_PARAM(3);
|
|
compar(p, q, arg);
|
|
}
|
|
}
|
|
qsort_r_compar_params params = {size, compar, arg};
|
|
REAL(qsort_r)(base, nmemb, size, wrapped_qsort_r_compar, ¶ms);
|
|
COMMON_INTERCEPTOR_WRITE_RANGE(ctx, base, nmemb * size);
|
|
}
|
|
# define INIT_QSORT_R COMMON_INTERCEPT_FUNCTION(qsort_r)
|
|
#else
|
|
# define INIT_QSORT_R
|
|
#endif
|
|
|
|
#if SANITIZER_INTERCEPT_QSORT && SANITIZER_INTERCEPT_QSORT_R
|
|
INTERCEPTOR(void, qsort, void *base, SIZE_T nmemb, SIZE_T size,
|
|
qsort_r_compar_f compar) {
|
|
void *ctx;
|
|
COMMON_INTERCEPTOR_ENTER(ctx, qsort, base, nmemb, size, compar);
|
|
WRAP(qsort_r)(base, nmemb, size, compar, nullptr);
|
|
}
|
|
# define INIT_QSORT COMMON_INTERCEPT_FUNCTION(qsort)
|
|
#elif SANITIZER_INTERCEPT_QSORT && !SANITIZER_INTERCEPT_QSORT_R
|
|
// Glibc qsort uses a temporary buffer allocated either on stack or on heap.
|
|
// Poisoned memory from there may get copied into the comparator arguments,
|
|
// where it needs to be dealt with. But even that is not enough - the results of
|
|
// the sort may be copied into the input/output array based on the results of
|
|
// the comparator calls, but directly from the temp memory, bypassing the
|
|
// unpoisoning done in wrapped_qsort_compar. We deal with this by, again,
|
|
// unpoisoning the entire array after the sort is done.
|
|
//
|
|
// We can not check that the entire array is initialized at the beginning. IMHO,
|
|
// it's fine for parts of the sorted objects to contain uninitialized memory,
|
|
// ex. as padding in structs.
|
|
typedef int (*qsort_compar_f)(const void *, const void *);
|
|
static THREADLOCAL qsort_compar_f qsort_compar;
|
|
static THREADLOCAL SIZE_T qsort_size;
|
|
static int wrapped_qsort_compar(const void *a, const void *b) {
|
|
COMMON_INTERCEPTOR_UNPOISON_PARAM(2);
|
|
COMMON_INTERCEPTOR_INITIALIZE_RANGE(a, qsort_size);
|
|
COMMON_INTERCEPTOR_INITIALIZE_RANGE(b, qsort_size);
|
|
return qsort_compar(a, b);
|
|
}
|
|
|
|
INTERCEPTOR(void, qsort, void *base, SIZE_T nmemb, SIZE_T size,
|
|
qsort_compar_f compar) {
|
|
void *ctx;
|
|
COMMON_INTERCEPTOR_ENTER(ctx, qsort, base, nmemb, size, compar);
|
|
// Run the comparator over all array elements to detect any memory issues.
|
|
if (nmemb > 1) {
|
|
for (SIZE_T i = 0; i < nmemb - 1; ++i) {
|
|
void *p = (void *)((char *)base + i * size);
|
|
void *q = (void *)((char *)base + (i + 1) * size);
|
|
COMMON_INTERCEPTOR_UNPOISON_PARAM(2);
|
|
compar(p, q);
|
|
}
|
|
}
|
|
qsort_compar_f old_compar = qsort_compar;
|
|
SIZE_T old_size = qsort_size;
|
|
// Handle qsort() implementations that recurse using an
|
|
// interposable function call:
|
|
bool already_wrapped = compar == wrapped_qsort_compar;
|
|
if (already_wrapped) {
|
|
// This case should only happen if the qsort() implementation calls itself
|
|
// using a preemptible function call (e.g. the FreeBSD libc version).
|
|
// Check that the size and comparator arguments are as expected.
|
|
CHECK_NE(compar, qsort_compar);
|
|
CHECK_EQ(qsort_size, size);
|
|
} else {
|
|
qsort_compar = compar;
|
|
qsort_size = size;
|
|
}
|
|
REAL(qsort)(base, nmemb, size, wrapped_qsort_compar);
|
|
if (!already_wrapped) {
|
|
qsort_compar = old_compar;
|
|
qsort_size = old_size;
|
|
}
|
|
COMMON_INTERCEPTOR_WRITE_RANGE(ctx, base, nmemb * size);
|
|
}
|
|
# define INIT_QSORT COMMON_INTERCEPT_FUNCTION(qsort)
|
|
#else
|
|
# define INIT_QSORT
|
|
#endif
|
|
|
|
#if SANITIZER_INTERCEPT_BSEARCH
|
|
typedef int (*bsearch_compar_f)(const void *, const void *);
|
|
struct bsearch_compar_params {
|
|
const void *key;
|
|
bsearch_compar_f compar;
|
|
};
|
|
|
|
static int wrapped_bsearch_compar(const void *key, const void *b) {
|
|
const bsearch_compar_params *params = (const bsearch_compar_params *)key;
|
|
COMMON_INTERCEPTOR_UNPOISON_PARAM(2);
|
|
return params->compar(params->key, b);
|
|
}
|
|
|
|
INTERCEPTOR(void *, bsearch, const void *key, const void *base, SIZE_T nmemb,
|
|
SIZE_T size, bsearch_compar_f compar) {
|
|
void *ctx;
|
|
COMMON_INTERCEPTOR_ENTER(ctx, bsearch, key, base, nmemb, size, compar);
|
|
bsearch_compar_params params = {key, compar};
|
|
return REAL(bsearch)(¶ms, base, nmemb, size, wrapped_bsearch_compar);
|
|
}
|
|
# define INIT_BSEARCH COMMON_INTERCEPT_FUNCTION(bsearch)
|
|
#else
|
|
# define INIT_BSEARCH
|
|
#endif
|
|
|
|
#if SANITIZER_INTERCEPT_SIGALTSTACK
|
|
INTERCEPTOR(int, sigaltstack, void *ss, void *oss) {
|
|
void *ctx;
|
|
COMMON_INTERCEPTOR_ENTER(ctx, sigaltstack, ss, oss);
|
|
int r = REAL(sigaltstack)(ss, oss);
|
|
if (r == 0 && oss != nullptr) {
|
|
COMMON_INTERCEPTOR_WRITE_RANGE(ctx, oss, struct_stack_t_sz);
|
|
}
|
|
return r;
|
|
}
|
|
#define INIT_SIGALTSTACK COMMON_INTERCEPT_FUNCTION(sigaltstack)
|
|
#else
|
|
#define INIT_SIGALTSTACK
|
|
#endif
|
|
|
|
#if SANITIZER_INTERCEPT_UNAME
|
|
INTERCEPTOR(int, uname, struct utsname *utsname) {
|
|
#if SANITIZER_LINUX
|
|
if (COMMON_INTERCEPTOR_NOTHING_IS_INITIALIZED)
|
|
return internal_uname(utsname);
|
|
#endif
|
|
void *ctx;
|
|
COMMON_INTERCEPTOR_ENTER(ctx, uname, utsname);
|
|
int res = REAL(uname)(utsname);
|
|
if (!res)
|
|
COMMON_INTERCEPTOR_WRITE_RANGE(ctx, utsname,
|
|
__sanitizer::struct_utsname_sz);
|
|
return res;
|
|
}
|
|
#define INIT_UNAME COMMON_INTERCEPT_FUNCTION(uname)
|
|
#else
|
|
#define INIT_UNAME
|
|
#endif
|
|
|
|
#if SANITIZER_INTERCEPT___XUNAME
|
|
// FreeBSD's <sys/utsname.h> define uname() as
|
|
// static __inline int uname(struct utsname *name) {
|
|
// return __xuname(SYS_NMLN, (void*)name);
|
|
// }
|
|
INTERCEPTOR(int, __xuname, int size, void *utsname) {
|
|
void *ctx;
|
|
COMMON_INTERCEPTOR_ENTER(ctx, __xuname, size, utsname);
|
|
int res = REAL(__xuname)(size, utsname);
|
|
if (!res)
|
|
COMMON_INTERCEPTOR_WRITE_RANGE(ctx, utsname,
|
|
__sanitizer::struct_utsname_sz);
|
|
return res;
|
|
}
|
|
#define INIT___XUNAME COMMON_INTERCEPT_FUNCTION(__xuname)
|
|
#else
|
|
#define INIT___XUNAME
|
|
#endif
|
|
|
|
#include "sanitizer_common_interceptors_netbsd_compat.inc"
|
|
|
|
static void InitializeCommonInterceptors() {
|
|
#if SI_POSIX
|
|
static u64 metadata_mem[sizeof(MetadataHashMap) / sizeof(u64) + 1];
|
|
interceptor_metadata_map = new ((void *)&metadata_mem) MetadataHashMap();
|
|
#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_CLOCK_GETCPUCLOCKID;
|
|
INIT_GETITIMER;
|
|
INIT_TIME;
|
|
INIT_GLOB;
|
|
INIT_GLOB64;
|
|
INIT_POSIX_SPAWN;
|
|
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_SYSMSG;
|
|
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_SIGSET_LOGICOPS;
|
|
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_PTSNAME;
|
|
INIT_PTSNAME_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_XDRREC_LINUX;
|
|
INIT_TSEARCH;
|
|
INIT_LIBIO_INTERNALS;
|
|
INIT_FOPEN;
|
|
INIT_FOPEN64;
|
|
INIT_FLOPEN;
|
|
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_PROTOENT_R;
|
|
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_CRYPT;
|
|
INIT_CRYPT_R;
|
|
INIT_GETENTROPY;
|
|
INIT_QSORT;
|
|
INIT_QSORT_R;
|
|
INIT_BSEARCH;
|
|
INIT_SIGALTSTACK;
|
|
INIT_UNAME;
|
|
INIT___XUNAME;
|
|
|
|
INIT___PRINTF_CHK;
|
|
}
|