diff options
Diffstat (limited to 'lib/asan/asan_interceptors.cpp')
| -rw-r--r-- | lib/asan/asan_interceptors.cpp | 71 |
1 files changed, 35 insertions, 36 deletions
diff --git a/lib/asan/asan_interceptors.cpp b/lib/asan/asan_interceptors.cpp index 482e44d83..cea4d63e6 100644 --- a/lib/asan/asan_interceptors.cpp +++ b/lib/asan/asan_interceptors.cpp @@ -79,7 +79,7 @@ int OnExit() { } // namespace __asan // ---------------------- Wrappers ---------------- {{{1 -using namespace __asan; // NOLINT +using namespace __asan; DECLARE_REAL_AND_INTERCEPTOR(void *, malloc, uptr) DECLARE_REAL_AND_INTERCEPTOR(void, free, void *) @@ -373,26 +373,26 @@ DEFINE_REAL(char*, index, const char *string, int c) // For both strcat() and strncat() we need to check the validity of |to| // argument irrespective of the |from| length. -INTERCEPTOR(char*, strcat, char *to, const char *from) { // NOLINT - void *ctx; - ASAN_INTERCEPTOR_ENTER(ctx, strcat); // NOLINT - ENSURE_ASAN_INITED(); - if (flags()->replace_str) { - uptr from_length = REAL(strlen)(from); - ASAN_READ_RANGE(ctx, from, from_length + 1); - uptr to_length = REAL(strlen)(to); - ASAN_READ_STRING_OF_LEN(ctx, to, to_length, to_length); - ASAN_WRITE_RANGE(ctx, to + to_length, from_length + 1); - // If the copying actually happens, the |from| string should not overlap - // with the resulting string starting at |to|, which has a length of - // to_length + from_length + 1. - if (from_length > 0) { - CHECK_RANGES_OVERLAP("strcat", to, from_length + to_length + 1, - from, from_length + 1); + INTERCEPTOR(char *, strcat, char *to, const char *from) { + void *ctx; + ASAN_INTERCEPTOR_ENTER(ctx, strcat); + ENSURE_ASAN_INITED(); + if (flags()->replace_str) { + uptr from_length = REAL(strlen)(from); + ASAN_READ_RANGE(ctx, from, from_length + 1); + uptr to_length = REAL(strlen)(to); + ASAN_READ_STRING_OF_LEN(ctx, to, to_length, to_length); + ASAN_WRITE_RANGE(ctx, to + to_length, from_length + 1); + // If the copying actually happens, the |from| string should not overlap + // with the resulting string starting at |to|, which has a length of + // to_length + from_length + 1. + if (from_length > 0) { + CHECK_RANGES_OVERLAP("strcat", to, from_length + to_length + 1, from, + from_length + 1); + } } + return REAL(strcat)(to, from); } - return REAL(strcat)(to, from); // NOLINT -} INTERCEPTOR(char*, strncat, char *to, const char *from, uptr size) { void *ctx; @@ -413,16 +413,17 @@ INTERCEPTOR(char*, strncat, char *to, const char *from, uptr size) { return REAL(strncat)(to, from, size); } -INTERCEPTOR(char*, strcpy, char *to, const char *from) { // NOLINT +INTERCEPTOR(char *, strcpy, char *to, const char *from) { void *ctx; - ASAN_INTERCEPTOR_ENTER(ctx, strcpy); // NOLINT + ASAN_INTERCEPTOR_ENTER(ctx, strcpy); #if SANITIZER_MAC - if (UNLIKELY(!asan_inited)) return REAL(strcpy)(to, from); // NOLINT + if (UNLIKELY(!asan_inited)) + return REAL(strcpy)(to, from); #endif // strcpy is called from malloc_default_purgeable_zone() // in __asan::ReplaceSystemAlloc() on Mac. if (asan_init_is_running) { - return REAL(strcpy)(to, from); // NOLINT + return REAL(strcpy)(to, from); } ENSURE_ASAN_INITED(); if (flags()->replace_str) { @@ -431,7 +432,7 @@ INTERCEPTOR(char*, strcpy, char *to, const char *from) { // NOLINT ASAN_READ_RANGE(ctx, from, from_size); ASAN_WRITE_RANGE(ctx, to, from_size); } - return REAL(strcpy)(to, from); // NOLINT + return REAL(strcpy)(to, from); } INTERCEPTOR(char*, strdup, const char *s) { @@ -479,8 +480,7 @@ INTERCEPTOR(char*, strncpy, char *to, const char *from, uptr size) { return REAL(strncpy)(to, from, size); } -INTERCEPTOR(long, strtol, const char *nptr, // NOLINT - char **endptr, int base) { +INTERCEPTOR(long, strtol, const char *nptr, char **endptr, int base) { void *ctx; ASAN_INTERCEPTOR_ENTER(ctx, strtol); ENSURE_ASAN_INITED(); @@ -488,7 +488,7 @@ INTERCEPTOR(long, strtol, const char *nptr, // NOLINT return REAL(strtol)(nptr, endptr, base); } char *real_endptr; - long result = REAL(strtol)(nptr, &real_endptr, base); // NOLINT + long result = REAL(strtol)(nptr, &real_endptr, base); StrtolFixAndCheck(ctx, nptr, endptr, real_endptr, base); return result; } @@ -514,7 +514,7 @@ INTERCEPTOR(int, atoi, const char *nptr) { return result; } -INTERCEPTOR(long, atol, const char *nptr) { // NOLINT +INTERCEPTOR(long, atol, const char *nptr) { void *ctx; ASAN_INTERCEPTOR_ENTER(ctx, atol); #if SANITIZER_MAC @@ -525,15 +525,14 @@ INTERCEPTOR(long, atol, const char *nptr) { // NOLINT return REAL(atol)(nptr); } char *real_endptr; - long result = REAL(strtol)(nptr, &real_endptr, 10); // NOLINT + long result = REAL(strtol)(nptr, &real_endptr, 10); FixRealStrtolEndptr(nptr, &real_endptr); ASAN_READ_STRING(ctx, nptr, (real_endptr - nptr) + 1); return result; } #if ASAN_INTERCEPT_ATOLL_AND_STRTOLL -INTERCEPTOR(long long, strtoll, const char *nptr, // NOLINT - char **endptr, int base) { +INTERCEPTOR(long long, strtoll, const char *nptr, char **endptr, int base) { void *ctx; ASAN_INTERCEPTOR_ENTER(ctx, strtoll); ENSURE_ASAN_INITED(); @@ -541,12 +540,12 @@ INTERCEPTOR(long long, strtoll, const char *nptr, // NOLINT return REAL(strtoll)(nptr, endptr, base); } char *real_endptr; - long long result = REAL(strtoll)(nptr, &real_endptr, base); // NOLINT + long long result = REAL(strtoll)(nptr, &real_endptr, base); StrtolFixAndCheck(ctx, nptr, endptr, real_endptr, base); return result; } -INTERCEPTOR(long long, atoll, const char *nptr) { // NOLINT +INTERCEPTOR(long long, atoll, const char *nptr) { void *ctx; ASAN_INTERCEPTOR_ENTER(ctx, atoll); ENSURE_ASAN_INITED(); @@ -554,7 +553,7 @@ INTERCEPTOR(long long, atoll, const char *nptr) { // NOLINT return REAL(atoll)(nptr); } char *real_endptr; - long long result = REAL(strtoll)(nptr, &real_endptr, 10); // NOLINT + long long result = REAL(strtoll)(nptr, &real_endptr, 10); FixRealStrtolEndptr(nptr, &real_endptr); ASAN_READ_STRING(ctx, nptr, (real_endptr - nptr) + 1); return result; @@ -594,8 +593,8 @@ void InitializeAsanInterceptors() { InitializeSignalInterceptors(); // Intercept str* functions. - ASAN_INTERCEPT_FUNC(strcat); // NOLINT - ASAN_INTERCEPT_FUNC(strcpy); // NOLINT + ASAN_INTERCEPT_FUNC(strcat); + ASAN_INTERCEPT_FUNC(strcpy); ASAN_INTERCEPT_FUNC(strncat); ASAN_INTERCEPT_FUNC(strncpy); ASAN_INTERCEPT_FUNC(strdup); |