//===-- sanitizer_common_interceptors.inc -----------------------*- C++ -*-===// // // The LLVM Compiler Infrastructure // // This file is distributed under the University of Illinois Open Source // License. See LICENSE.TXT for details. // //===----------------------------------------------------------------------===// // // 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 it's own macros: // COMMON_INTERCEPTOR_ENTER // COMMON_INTERCEPTOR_ENTER_NOIGNORE // COMMON_INTERCEPTOR_READ_RANGE // COMMON_INTERCEPTOR_WRITE_RANGE // COMMON_INTERCEPTOR_INITIALIZE_RANGE // COMMON_INTERCEPTOR_FD_ACQUIRE // COMMON_INTERCEPTOR_FD_RELEASE // COMMON_INTERCEPTOR_FD_ACCESS // COMMON_INTERCEPTOR_SET_THREAD_NAME // COMMON_INTERCEPTOR_ON_EXIT // COMMON_INTERCEPTOR_MUTEX_LOCK // COMMON_INTERCEPTOR_MUTEX_UNLOCK // COMMON_INTERCEPTOR_MUTEX_REPAIR // COMMON_INTERCEPTOR_SET_PTHREAD_NAME // COMMON_INTERCEPTOR_HANDLE_RECVMSG // COMMON_INTERCEPTOR_NOTHING_IS_INITIALIZED //===----------------------------------------------------------------------===// #include "interception/interception.h" #include "sanitizer_addrhashmap.h" #include "sanitizer_placement_new.h" #include "sanitizer_platform_interceptors.h" #include "sanitizer_tls_get_addr.h" #include #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 #endif #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_LOCK #define COMMON_INTERCEPTOR_MUTEX_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_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, map) {} #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 struct FileMetadata { // For open_memstream(). char **addr; SIZE_T *size; }; struct CommonInterceptorMetadata { enum { CIMT_INVALID = 0, CIMT_FILE } type; union { FileMetadata file; }; }; typedef AddrHashMap MetadataHashMap; static MetadataHashMap *interceptor_metadata_map; #if SI_NOT_WINDOWS 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 (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_NOT_WINDOWS #if SANITIZER_INTERCEPT_TEXTDOMAIN INTERCEPTOR(char*, textdomain, const char *domainname) { void *ctx; COMMON_INTERCEPTOR_ENTER(ctx, textdomain, domainname); char* domain = REAL(textdomain)(domainname); if (domain) { COMMON_INTERCEPTOR_INITIALIZE_RANGE(domain, REAL(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; } 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; } COMMON_INTERCEPTOR_READ_RANGE(ctx, s1, i + 1); COMMON_INTERCEPTOR_READ_RANGE(ctx, s2, i + 1); return CharCmpX(c1, c2); } 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; } COMMON_INTERCEPTOR_READ_RANGE(ctx, s1, Min(i + 1, size)); COMMON_INTERCEPTOR_READ_RANGE(ctx, s2, Min(i + 1, size)); return CharCmpX(c1, c2); } #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; } 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_RANGE(ctx, s1, i + 1); COMMON_INTERCEPTOR_READ_RANGE(ctx, s2, i + 1); return CharCaseCmp(c1, c2); } INTERCEPTOR(int, strncasecmp, const char *s1, const char *s2, SIZE_T n) { void *ctx; COMMON_INTERCEPTOR_ENTER(ctx, strncasecmp, s1, s2, n); unsigned char c1 = 0, c2 = 0; uptr i; for (i = 0; i < n; i++) { c1 = (unsigned char)s1[i]; c2 = (unsigned char)s2[i]; if (CharCaseCmp(c1, c2) != 0 || c1 == '\0') break; } COMMON_INTERCEPTOR_READ_RANGE(ctx, s1, Min(i + 1, n)); COMMON_INTERCEPTOR_READ_RANGE(ctx, s2, Min(i + 1, n)); return CharCaseCmp(c1, c2); } #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_MEMCHR INTERCEPTOR(void*, memchr, const void *s, int c, SIZE_T n) { void *ctx; COMMON_INTERCEPTOR_ENTER(ctx, memchr, s, c, n); void *res = REAL(memchr)(s, c, n); 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); 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); // FIXME: under ASan the call below may write to freed memory and corrupt // its metadata. See // https://code.google.com/p/address-sanitizer/issues/detail?id=321. float res = REAL(frexpf)(x, exp); COMMON_INTERCEPTOR_WRITE_RANGE(ctx, exp, sizeof(*exp)); return res; } INTERCEPTOR(long double, frexpl, long double x, int *exp) { void *ctx; COMMON_INTERCEPTOR_ENTER(ctx, frexpl, x, exp); // FIXME: under ASan the call below may write to freed memory and corrupt // its metadata. See // https://code.google.com/p/address-sanitizer/issues/detail?id=321. long double res = REAL(frexpl)(x, exp); COMMON_INTERCEPTOR_WRITE_RANGE(ctx, exp, sizeof(*exp)); return res; } #define INIT_FREXPF_FREXPL \ COMMON_INTERCEPT_FUNCTION(frexpf); \ COMMON_INTERCEPT_FUNCTION(frexpl) #else #define INIT_FREXPF_FREXPL #endif // SANITIZER_INTERCEPT_FREXPF_FREXPL #if SI_NOT_WINDOWS 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://code.google.com/p/address-sanitizer/issues/detail?id=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_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://code.google.com/p/address-sanitizer/issues/detail?id=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://code.google.com/p/address-sanitizer/issues/detail?id=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_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_PRCTL INTERCEPTOR(int, prctl, int option, unsigned long arg2, unsigned long arg3, // NOLINT unsigned long arg4, unsigned long arg5) { // NOLINT 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 (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, REAL(strlen(tm->tm_zone)) + 1); } } 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://code.google.com/p/address-sanitizer/issues/detail?id=321. char *res = REAL(ctime)(timep); if (res) { COMMON_INTERCEPTOR_READ_RANGE(ctx, timep, sizeof(*timep)); COMMON_INTERCEPTOR_WRITE_RANGE(ctx, res, REAL(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://code.google.com/p/address-sanitizer/issues/detail?id=321. char *res = REAL(ctime_r)(timep, result); if (res) { COMMON_INTERCEPTOR_READ_RANGE(ctx, timep, sizeof(*timep)); COMMON_INTERCEPTOR_WRITE_RANGE(ctx, res, REAL(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://code.google.com/p/address-sanitizer/issues/detail?id=321. char *res = REAL(asctime)(tm); if (res) { COMMON_INTERCEPTOR_READ_RANGE(ctx, tm, sizeof(*tm)); COMMON_INTERCEPTOR_WRITE_RANGE(ctx, res, REAL(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://code.google.com/p/address-sanitizer/issues/detail?id=321. char *res = REAL(asctime_r)(tm, result); if (res) { COMMON_INTERCEPTOR_READ_RANGE(ctx, tm, sizeof(*tm)); COMMON_INTERCEPTOR_WRITE_RANGE(ctx, res, REAL(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, REAL(strlen)(format) + 1); // FIXME: under ASan the call below may write to freed memory and corrupt // its metadata. See // https://code.google.com/p/address-sanitizer/issues/detail?id=321. char *res = REAL(strptime)(s, format, tm); if (res) { COMMON_INTERCEPTOR_READ_RANGE(ctx, s, res - s); // Do not call unpoison_tm here, because strptime does not, in fact, // initialize the entire struct tm. For example, tm_zone pointer is left // uninitialized. if (tm) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, tm, sizeof(*tm)); } 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(scanf); \ COMMON_INTERCEPT_FUNCTION(sscanf); \ COMMON_INTERCEPT_FUNCTION(fscanf); \ COMMON_INTERCEPT_FUNCTION(vscanf); \ COMMON_INTERCEPT_FUNCTION(vsscanf); \ COMMON_INTERCEPT_FUNCTION(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://code.google.com/p/address-sanitizer/issues/detail?id=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://code.google.com/p/address-sanitizer/issues/detail?id=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://code.google.com/p/address-sanitizer/issues/detail?id=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) INTERCEPTOR(int, vsprintf, char *str, const char *format, va_list ap) VSPRINTF_INTERCEPTOR_IMPL(vsprintf, str, format, ap) 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) INTERCEPTOR(int, sprintf, char *str, const char *format, ...) // NOLINT FORMAT_INTERCEPTOR_IMPL(sprintf, vsprintf, str, format) // NOLINT INTERCEPTOR(int, snprintf, char *str, SIZE_T size, const char *format, ...) FORMAT_INTERCEPTOR_IMPL(snprintf, vsnprintf, str, size, format) 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(printf); \ COMMON_INTERCEPT_FUNCTION(sprintf); \ COMMON_INTERCEPT_FUNCTION(snprintf); \ COMMON_INTERCEPT_FUNCTION(asprintf); \ COMMON_INTERCEPT_FUNCTION(fprintf); \ COMMON_INTERCEPT_FUNCTION(vprintf); \ COMMON_INTERCEPT_FUNCTION(vsprintf); \ COMMON_INTERCEPT_FUNCTION(vsnprintf); \ COMMON_INTERCEPT_FUNCTION(vasprintf); \ COMMON_INTERCEPT_FUNCTION(vfprintf); #else #define INIT_PRINTF #endif #if SANITIZER_INTERCEPT_ISOC99_PRINTF #define INIT_ISOC99_PRINTF \ COMMON_INTERCEPT_FUNCTION(__isoc99_printf); \ COMMON_INTERCEPT_FUNCTION(__isoc99_sprintf); \ COMMON_INTERCEPT_FUNCTION(__isoc99_snprintf); \ COMMON_INTERCEPT_FUNCTION(__isoc99_fprintf); \ COMMON_INTERCEPT_FUNCTION(__isoc99_vprintf); \ COMMON_INTERCEPT_FUNCTION(__isoc99_vsprintf); \ COMMON_INTERCEPT_FUNCTION(__isoc99_vsnprintf); \ COMMON_INTERCEPT_FUNCTION(__isoc99_vfprintf); #else #define INIT_ISOC99_PRINTF #endif #if SANITIZER_INTERCEPT_IOCTL #include "sanitizer_common_interceptors_ioctl.inc" INTERCEPTOR(int, ioctl, int d, unsigned request, void *arg) { void *ctx; 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); const ioctl_desc *desc = ioctl_lookup(request); ioctl_desc decoded_desc; if (!desc) { VPrintf(2, "Decoding unknown ioctl 0x%x\n", request); if (!ioctl_decode(request, &decoded_desc)) Printf("WARNING: failed decoding unknown ioctl 0x%x\n", request); else desc = &decoded_desc; } if (desc) ioctl_common_pre(ctx, desc, d, request, arg); int res = REAL(ioctl)(d, request, arg); // 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_INTERCEPT_GETPWNAM_AND_FRIENDS || \ SANITIZER_INTERCEPT_GETPWENT || SANITIZER_INTERCEPT_FGETPWENT || \ SANITIZER_INTERCEPT_GETPWENT_R || SANITIZER_INTERCEPT_GETPWNAM_R_AND_FRIENDS 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_INITIALIZE_RANGE(pwd->pw_name, REAL(strlen)(pwd->pw_name) + 1); if (pwd->pw_passwd) COMMON_INTERCEPTOR_INITIALIZE_RANGE(pwd->pw_passwd, REAL(strlen)(pwd->pw_passwd) + 1); #if !SANITIZER_ANDROID if (pwd->pw_gecos) COMMON_INTERCEPTOR_INITIALIZE_RANGE(pwd->pw_gecos, REAL(strlen)(pwd->pw_gecos) + 1); #endif #if SANITIZER_MAC if (pwd->pw_class) COMMON_INTERCEPTOR_INITIALIZE_RANGE(pwd->pw_class, REAL(strlen)(pwd->pw_class) + 1); #endif if (pwd->pw_dir) COMMON_INTERCEPTOR_INITIALIZE_RANGE(pwd->pw_dir, REAL(strlen)(pwd->pw_dir) + 1); if (pwd->pw_shell) COMMON_INTERCEPTOR_INITIALIZE_RANGE(pwd->pw_shell, REAL(strlen)(pwd->pw_shell) + 1); } } 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_INITIALIZE_RANGE(grp->gr_name, REAL(strlen)(grp->gr_name) + 1); if (grp->gr_passwd) COMMON_INTERCEPTOR_INITIALIZE_RANGE(grp->gr_passwd, REAL(strlen)(grp->gr_passwd) + 1); char **p = grp->gr_mem; for (; *p; ++p) { COMMON_INTERCEPTOR_INITIALIZE_RANGE(*p, REAL(strlen)(*p) + 1); } COMMON_INTERCEPTOR_INITIALIZE_RANGE(grp->gr_mem, (p - grp->gr_mem + 1) * sizeof(*p)); } } #endif // SANITIZER_INTERCEPT_GETPWNAM_AND_FRIENDS || // SANITIZER_INTERCEPT_GETPWENT || SANITIZER_INTERCEPT_FGETPWENT || // SANITIZER_INTERCEPT_GETPWENT_R || // SANITIZER_INTERCEPT_GETPWNAM_R_AND_FRIENDS #if SANITIZER_INTERCEPT_GETPWNAM_AND_FRIENDS INTERCEPTOR(__sanitizer_passwd *, getpwnam, const char *name) { void *ctx; COMMON_INTERCEPTOR_ENTER(ctx, getpwnam, name); COMMON_INTERCEPTOR_READ_RANGE(ctx, name, REAL(strlen)(name) + 1); __sanitizer_passwd *res = REAL(getpwnam)(name); if (res != 0) 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); if (res != 0) 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, REAL(strlen)(name) + 1); __sanitizer_group *res = REAL(getgrnam)(name); if (res != 0) 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); if (res != 0) 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, REAL(strlen)(name) + 1); // FIXME: under ASan the call below may write to freed memory and corrupt // its metadata. See // https://code.google.com/p/address-sanitizer/issues/detail?id=321. int res = REAL(getpwnam_r)(name, pwd, buf, buflen, result); if (!res) { if (result && *result) unpoison_passwd(ctx, *result); COMMON_INTERCEPTOR_WRITE_RANGE(ctx, buf, buflen); } 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://code.google.com/p/address-sanitizer/issues/detail?id=321. int res = REAL(getpwuid_r)(uid, pwd, buf, buflen, result); if (!res) { if (result && *result) unpoison_passwd(ctx, *result); COMMON_INTERCEPTOR_WRITE_RANGE(ctx, buf, buflen); } 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, REAL(strlen)(name) + 1); // FIXME: under ASan the call below may write to freed memory and corrupt // its metadata. See // https://code.google.com/p/address-sanitizer/issues/detail?id=321. int res = REAL(getgrnam_r)(name, grp, buf, buflen, result); if (!res) { if (result && *result) unpoison_group(ctx, *result); COMMON_INTERCEPTOR_WRITE_RANGE(ctx, buf, buflen); } 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://code.google.com/p/address-sanitizer/issues/detail?id=321. int res = REAL(getgrgid_r)(gid, grp, buf, buflen, result); if (!res) { if (result && *result) unpoison_group(ctx, *result); COMMON_INTERCEPTOR_WRITE_RANGE(ctx, buf, buflen); } 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); if (res != 0) 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); if (res != 0) 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); if (res != 0) 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); if (res != 0) 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://code.google.com/p/address-sanitizer/issues/detail?id=321. int res = REAL(getpwent_r)(pwbuf, buf, buflen, pwbufp); if (!res) { if (pwbufp && *pwbufp) unpoison_passwd(ctx, *pwbufp); COMMON_INTERCEPTOR_WRITE_RANGE(ctx, buf, buflen); } if (pwbufp) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, pwbufp, sizeof(*pwbufp)); return res; } 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://code.google.com/p/address-sanitizer/issues/detail?id=321. int res = REAL(fgetpwent_r)(fp, pwbuf, buf, buflen, pwbufp); if (!res) { if (pwbufp && *pwbufp) unpoison_passwd(ctx, *pwbufp); COMMON_INTERCEPTOR_WRITE_RANGE(ctx, buf, buflen); } 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://code.google.com/p/address-sanitizer/issues/detail?id=321. int res = REAL(getgrent_r)(pwbuf, buf, buflen, pwbufp); if (!res) { if (pwbufp && *pwbufp) unpoison_group(ctx, *pwbufp); COMMON_INTERCEPTOR_WRITE_RANGE(ctx, buf, buflen); } if (pwbufp) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, pwbufp, sizeof(*pwbufp)); return res; } 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://code.google.com/p/address-sanitizer/issues/detail?id=321. int res = REAL(fgetgrent_r)(fp, pwbuf, buf, buflen, pwbufp); if (!res) { if (pwbufp && *pwbufp) unpoison_group(ctx, *pwbufp); COMMON_INTERCEPTOR_WRITE_RANGE(ctx, buf, buflen); } if (pwbufp) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, pwbufp, sizeof(*pwbufp)); return res; } #define INIT_GETPWENT_R \ COMMON_INTERCEPT_FUNCTION(getpwent_r); \ COMMON_INTERCEPT_FUNCTION(fgetpwent_r); \ COMMON_INTERCEPT_FUNCTION(getgrent_r); \ COMMON_INTERCEPT_FUNCTION(fgetgrent_r); #else #define INIT_GETPWENT_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://code.google.com/p/address-sanitizer/issues/detail?id=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://code.google.com/p/address-sanitizer/issues/detail?id=321. int res = REAL(clock_gettime)(clk_id, tp); if (!res) { COMMON_INTERCEPTOR_WRITE_RANGE(ctx, tp, struct_timespec_sz); } return res; } 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_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://code.google.com/p/address-sanitizer/issues/detail?id=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) COMMON_INTERCEPTOR_READ_RANGE(ctx, new_value, struct_itimerval_sz); // FIXME: under ASan the call below may write to freed memory and corrupt // its metadata. See // https://code.google.com/p/address-sanitizer/issues/detail?id=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, REAL(strlen)(p) + 1); } } 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, REAL(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, REAL(strlen)(s) + 1); return pglob_copy->gl_lstat(s, st); } static int wrapped_gl_stat(const char *s, void *st) { COMMON_INTERCEPTOR_UNPOISON_PARAM(2); COMMON_INTERCEPTOR_INITIALIZE_RANGE(s, REAL(strlen)(s) + 1); return pglob_copy->gl_stat(s, st); } INTERCEPTOR(int, glob, const char *pattern, int flags, int (*errfunc)(const char *epath, int eerrno), __sanitizer_glob_t *pglob) { void *ctx; COMMON_INTERCEPTOR_ENTER(ctx, glob, pattern, flags, errfunc, pglob); __sanitizer_glob_t glob_copy = { 0, 0, 0, 0, wrapped_gl_closedir, wrapped_gl_readdir, wrapped_gl_opendir, wrapped_gl_lstat, wrapped_gl_stat}; 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; } INTERCEPTOR(int, glob64, const char *pattern, int flags, int (*errfunc)(const char *epath, int eerrno), __sanitizer_glob_t *pglob) { void *ctx; COMMON_INTERCEPTOR_ENTER(ctx, glob64, pattern, flags, errfunc, pglob); __sanitizer_glob_t glob_copy = { 0, 0, 0, 0, wrapped_gl_closedir, wrapped_gl_readdir, wrapped_gl_opendir, wrapped_gl_lstat, wrapped_gl_stat}; 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_GLOB \ COMMON_INTERCEPT_FUNCTION(glob); \ COMMON_INTERCEPT_FUNCTION(glob64); #else // SANITIZER_INTERCEPT_GLOB #define INIT_GLOB #endif // SANITIZER_INTERCEPT_GLOB #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://code.google.com/p/address-sanitizer/issues/detail?id=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://code.google.com/p/address-sanitizer/issues/detail?id=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://code.google.com/p/address-sanitizer/issues/detail?id=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://code.google.com/p/address-sanitizer/issues/detail?id=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://code.google.com/p/address-sanitizer/issues/detail?id=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://code.google.com/p/address-sanitizer/issues/detail?id=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://code.google.com/p/address-sanitizer/issues/detail?id=321. char *res = REAL(inet_ntop)(af, src, dst, size); if (res) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, res, REAL(strlen)(res) + 1); return res; } INTERCEPTOR(int, inet_pton, int af, const char *src, void *dst) { void *ctx; COMMON_INTERCEPTOR_ENTER(ctx, inet_pton, af, src, dst); // 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://code.google.com/p/address-sanitizer/issues/detail?id=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, REAL(strlen)(cp) + 1); // FIXME: under ASan the call below may write to freed memory and corrupt // its metadata. See // https://code.google.com/p/address-sanitizer/issues/detail?id=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://code.google.com/p/address-sanitizer/issues/detail?id=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, REAL(strlen)(node) + 1); if (service) COMMON_INTERCEPTOR_READ_RANGE(ctx, service, REAL(strlen)(service) + 1); if (hints) COMMON_INTERCEPTOR_READ_RANGE(ctx, hints, sizeof(__sanitizer_addrinfo)); // FIXME: under ASan the call below may write to freed memory and corrupt // its metadata. See // https://code.google.com/p/address-sanitizer/issues/detail?id=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, REAL(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://code.google.com/p/address-sanitizer/issues/detail?id=321. int res = REAL(getnameinfo)(sockaddr, salen, host, hostlen, serv, servlen, flags); if (res == 0) { if (host && hostlen) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, host, REAL(strlen)(host) + 1); if (serv && servlen) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, serv, REAL(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, int *addrlen) { void *ctx; COMMON_INTERCEPTOR_ENTER(ctx, getsockname, sock_fd, addr, addrlen); COMMON_INTERCEPTOR_READ_RANGE(ctx, addrlen, sizeof(*addrlen)); int addrlen_in = *addrlen; // FIXME: under ASan the call below may write to freed memory and corrupt // its metadata. See // https://code.google.com/p/address-sanitizer/issues/detail?id=321. int res = REAL(getsockname)(sock_fd, addr, addrlen); if (res == 0) { COMMON_INTERCEPTOR_WRITE_RANGE(ctx, addr, Min(addrlen_in, *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, REAL(strlen)(h->h_name) + 1); char **p = h->h_aliases; while (*p) { COMMON_INTERCEPTOR_WRITE_RANGE(ctx, *p, REAL(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; } 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_GETHOSTBYNAME \ COMMON_INTERCEPT_FUNCTION(gethostent); \ COMMON_INTERCEPT_FUNCTION(gethostbyaddr); \ COMMON_INTERCEPT_FUNCTION(gethostbyname); \ COMMON_INTERCEPT_FUNCTION(gethostbyname2); #else #define INIT_GETHOSTBYNAME #endif #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://code.google.com/p/address-sanitizer/issues/detail?id=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://code.google.com/p/address-sanitizer/issues/detail?id=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://code.google.com/p/address-sanitizer/issues/detail?id=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://code.google.com/p/address-sanitizer/issues/detail?id=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://code.google.com/p/address-sanitizer/issues/detail?id=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://code.google.com/p/address-sanitizer/issues/detail?id=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_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://code.google.com/p/address-sanitizer/issues/detail?id=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://code.google.com/p/address-sanitizer/issues/detail?id=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://code.google.com/p/address-sanitizer/issues/detail?id=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(modfl); #else #define INIT_MODF #endif #if SANITIZER_INTERCEPT_RECVMSG 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); } 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://code.google.com/p/address-sanitizer/issues/detail?id=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_GETPEERNAME INTERCEPTOR(int, getpeername, int sockfd, void *addr, unsigned *addrlen) { void *ctx; COMMON_INTERCEPTOR_ENTER(ctx, getpeername, sockfd, addr, addrlen); unsigned addr_sz; if (addrlen) addr_sz = *addrlen; // FIXME: under ASan the call below may write to freed memory and corrupt // its metadata. See // https://code.google.com/p/address-sanitizer/issues/detail?id=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://code.google.com/p/address-sanitizer/issues/detail?id=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 *, 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://code.google.com/p/address-sanitizer/issues/detail?id=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://code.google.com/p/address-sanitizer/issues/detail?id=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(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://code.google.com/p/address-sanitizer/issues/detail?id=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://code.google.com/p/address-sanitizer/issues/detail?id=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); 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_setsiginfo) COMMON_INTERCEPTOR_READ_RANGE(ctx, data, siginfo_t_sz); else if (request == ptrace_setregset) { __sanitizer_iovec *iov = (__sanitizer_iovec *)data; COMMON_INTERCEPTOR_READ_RANGE(ctx, iov->iov_base, iov->iov_len); } } // FIXME: under ASan the call below may write to freed memory and corrupt // its metadata. See // https://code.google.com/p/address-sanitizer/issues/detail?id=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_getsiginfo) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, data, siginfo_t_sz); else if (request == ptrace_geteventmsg) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, data, sizeof(unsigned long)); else if (request == ptrace_getregset) { __sanitizer_iovec *iov = (__sanitizer_iovec *)data; COMMON_INTERCEPTOR_WRITE_RANGE(ctx, iov->iov_base, iov->iov_len); } } return res; } #define INIT_PTRACE COMMON_INTERCEPT_FUNCTION(ptrace); #else #define INIT_PTRACE #endif #if SANITIZER_INTERCEPT_SETLOCALE INTERCEPTOR(char *, setlocale, int category, char *locale) { void *ctx; COMMON_INTERCEPTOR_ENTER(ctx, setlocale, category, locale); if (locale) COMMON_INTERCEPTOR_READ_RANGE(ctx, locale, REAL(strlen)(locale) + 1); char *res = REAL(setlocale)(category, locale); if (res) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, res, REAL(strlen)(res) + 1); 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://code.google.com/p/address-sanitizer/issues/detail?id=321. char *res = REAL(getcwd)(buf, size); if (res) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, res, REAL(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://code.google.com/p/address-sanitizer/issues/detail?id=321. char *res = REAL(get_current_dir_name)(fake); if (res) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, res, REAL(strlen)(res) + 1); return res; } #define INIT_GET_CURRENT_DIR_NAME \ COMMON_INTERCEPT_FUNCTION(get_current_dir_name); #else #define INIT_GET_CURRENT_DIR_NAME #endif #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://code.google.com/p/address-sanitizer/issues/detail?id=321. INTMAX_T res = REAL(strtoimax)(nptr, endptr, base); if (endptr) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, endptr, sizeof(*endptr)); return res; } INTERCEPTOR(INTMAX_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://code.google.com/p/address-sanitizer/issues/detail?id=321. INTMAX_T res = REAL(strtoumax)(nptr, endptr, base); if (endptr) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, endptr, sizeof(*endptr)); 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://code.google.com/p/address-sanitizer/issues/detail?id=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://code.google.com/p/address-sanitizer/issues/detail?id=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://code.google.com/p/address-sanitizer/issues/detail?id=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://code.google.com/p/address-sanitizer/issues/detail?id=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://code.google.com/p/address-sanitizer/issues/detail?id=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://code.google.com/p/address-sanitizer/issues/detail?id=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_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://code.google.com/p/address-sanitizer/issues/detail?id=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, REAL(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 = 0; 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, REAL(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, REAL(strlen)(path) + 1); char *res = REAL(canonicalize_file_name)(path); if (res) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, res, REAL(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://code.google.com/p/address-sanitizer/issues/detail?id=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://code.google.com/p/address-sanitizer/issues/detail?id=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_STRERROR INTERCEPTOR(char *, strerror, int errnum) { void *ctx; COMMON_INTERCEPTOR_ENTER(ctx, strerror, errnum); char *res = REAL(strerror)(errnum); if (res) COMMON_INTERCEPTOR_INITIALIZE_RANGE(res, REAL(strlen)(res) + 1); return res; } #define INIT_STRERROR COMMON_INTERCEPT_FUNCTION(strerror); #else #define INIT_STRERROR #endif #if SANITIZER_INTERCEPT_STRERROR_R 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://code.google.com/p/address-sanitizer/issues/detail?id=321. char *res = REAL(strerror_r)(errnum, buf, buflen); // There are 2 versions of strerror_r: // * POSIX version returns 0 on success, negative error code on failure, // writes message to buf. // * GNU version returns message pointer, which points to either buf or some // static storage. SIZE_T posix_res = (SIZE_T)res; if (posix_res < 1024 || posix_res > (SIZE_T) - 1024) { // POSIX version. Spec is not clear on whether buf is NULL-terminated. // At least on OSX, buf contents are valid even when the call fails. SIZE_T sz = internal_strnlen(buf, buflen); if (sz < buflen) ++sz; COMMON_INTERCEPTOR_WRITE_RANGE(ctx, buf, sz); } else { // GNU version. COMMON_INTERCEPTOR_WRITE_RANGE(ctx, res, REAL(strlen)(res) + 1); } return res; } #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://code.google.com/p/address-sanitizer/issues/detail?id=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, REAL(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, REAL(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://code.google.com/p/address-sanitizer/issues/detail?id=321. int res = REAL(scandir)(dirp, namelist, filter ? wrapped_scandir_filter : 0, compar ? wrapped_scandir_compar : 0); scandir_filter = 0; scandir_compar = 0; 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, REAL(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://code.google.com/p/address-sanitizer/issues/detail?id=321. int res = REAL(scandir64)(dirp, namelist, filter ? wrapped_scandir64_filter : 0, compar ? wrapped_scandir64_compar : 0); scandir64_filter = 0; scandir64_compar = 0; 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://code.google.com/p/address-sanitizer/issues/detail?id=321. int res = REAL(getgroups)(size, lst); if (res && lst) 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); // FIXME: read sigmask when all of sigemptyset, etc are intercepted. 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, REAL(strlen)(s) + 1); // FIXME: under ASan the call below may write to freed memory and corrupt // its metadata. See // https://code.google.com/p/address-sanitizer/issues/detail?id=321. int res = REAL(wordexp)(s, p, flags); if (!res && p) { COMMON_INTERCEPTOR_WRITE_RANGE(ctx, p, sizeof(*p)); if (p->we_wordc) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, p->we_wordv, sizeof(*p->we_wordv) * p->we_wordc); for (uptr i = 0; i < p->we_wordc; ++i) { char *w = p->we_wordv[i]; if (w) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, w, REAL(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); // FIXME: read sigset_t when all of sigemptyset, etc are intercepted // FIXME: under ASan the call below may write to freed memory and corrupt // its metadata. See // https://code.google.com/p/address-sanitizer/issues/detail?id=321. int res = 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); // FIXME: read sigset_t when all of sigemptyset, etc are intercepted // FIXME: under ASan the call below may write to freed memory and corrupt // its metadata. See // https://code.google.com/p/address-sanitizer/issues/detail?id=321. int res = 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); // FIXME: read sigset_t when all of sigemptyset, etc are intercepted // FIXME: under ASan the call below may write to freed memory and corrupt // its metadata. See // https://code.google.com/p/address-sanitizer/issues/detail?id=321. int res = 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://code.google.com/p/address-sanitizer/issues/detail?id=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://code.google.com/p/address-sanitizer/issues/detail?id=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_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://code.google.com/p/address-sanitizer/issues/detail?id=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); // FIXME: read sigset_t when all of sigemptyset, etc are intercepted // FIXME: under ASan the call below may write to freed memory and corrupt // its metadata. See // https://code.google.com/p/address-sanitizer/issues/detail?id=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_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://code.google.com/p/address-sanitizer/issues/detail?id=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://code.google.com/p/address-sanitizer/issues/detail?id=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], REAL(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); int status1 = COMMON_INTERCEPTOR_ON_EXIT(ctx); if (status == 0) status = status1; REAL(_exit)(status); } #define INIT__EXIT COMMON_INTERCEPT_FUNCTION(_exit); #else #define INIT__EXIT #endif #if SANITIZER_INTERCEPT_PHTREAD_MUTEX INTERCEPTOR(int, pthread_mutex_lock, void *m) { void *ctx; COMMON_INTERCEPTOR_ENTER(ctx, pthread_mutex_lock, m); int res = REAL(pthread_mutex_lock)(m); if (res == errno_EOWNERDEAD) COMMON_INTERCEPTOR_MUTEX_REPAIR(ctx, m); if (res == 0 || res == errno_EOWNERDEAD) COMMON_INTERCEPTOR_MUTEX_LOCK(ctx, m); 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); return REAL(pthread_mutex_unlock)(m); } #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_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, REAL(strlen)(mnt->mnt_fsname) + 1); if (mnt->mnt_dir) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, mnt->mnt_dir, REAL(strlen)(mnt->mnt_dir) + 1); if (mnt->mnt_type) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, mnt->mnt_type, REAL(strlen)(mnt->mnt_type) + 1); if (mnt->mnt_opts) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, mnt->mnt_opts, REAL(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, REAL(strlen)(path) + 1); // FIXME: under ASan the call below may write to freed memory and corrupt // its metadata. See // https://code.google.com/p/address-sanitizer/issues/detail?id=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://code.google.com/p/address-sanitizer/issues/detail?id=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, REAL(strlen)(path) + 1); // FIXME: under ASan the call below may write to freed memory and corrupt // its metadata. See // https://code.google.com/p/address-sanitizer/issues/detail?id=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://code.google.com/p/address-sanitizer/issues/detail?id=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, REAL(strlen)(path) + 1); // FIXME: under ASan the call below may write to freed memory and corrupt // its metadata. See // https://code.google.com/p/address-sanitizer/issues/detail?id=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); // FIXME: under ASan the call below may write to freed memory and corrupt // its metadata. See // https://code.google.com/p/address-sanitizer/issues/detail?id=321. int res = REAL(fstatvfs)(fd, buf); if (!res) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, buf, struct_statvfs_sz); 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, REAL(strlen)(path) + 1); // FIXME: under ASan the call below may write to freed memory and corrupt // its metadata. See // https://code.google.com/p/address-sanitizer/issues/detail?id=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://code.google.com/p/address-sanitizer/issues/detail?id=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, REAL(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, REAL(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, REAL(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://code.google.com/p/address-sanitizer/issues/detail?id=321. int res = REAL(ether_ntohost)(hostname, addr); if (!res && hostname) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, hostname, REAL(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, REAL(strlen)(hostname) + 1); // FIXME: under ASan the call below may write to freed memory and corrupt // its metadata. See // https://code.google.com/p/address-sanitizer/issues/detail?id=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, REAL(strlen)(line) + 1); // FIXME: under ASan the call below may write to freed memory and corrupt // its metadata. See // https://code.google.com/p/address-sanitizer/issues/detail?id=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, REAL(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://code.google.com/p/address-sanitizer/issues/detail?id=321. char *res = REAL(ether_ntoa_r)(addr, buf); if (res) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, res, REAL(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, REAL(strlen)(buf) + 1); // FIXME: under ASan the call below may write to freed memory and corrupt // its metadata. See // https://code.google.com/p/address-sanitizer/issues/detail?id=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://code.google.com/p/address-sanitizer/issues/detail?id=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://code.google.com/p/address-sanitizer/issues/detail?id=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://code.google.com/p/address-sanitizer/issues/detail?id=321. #if SANITIZER_INTERCEPT_PTHREAD_ATTR_GET || \ SANITIZER_INTERCEPT_PTHREAD_ATTR_GETINHERITSSCHED || \ SANITIZER_INTERCEPT_PTHREAD_MUTEXATTR_GET || \ SANITIZER_INTERCEPT_PTHREAD_RWLOCKATTR_GET || \ SANITIZER_INTERCEPT_PTHREAD_CONDATTR_GET || \ SANITIZER_INTERCEPT_PTHREAD_BARRIERATTR_GET #define INTERCEPTOR_PTHREAD_OBJECT_ATTR_GET(fn, sz) \ INTERCEPTOR(int, fn, void *attr, void *r) { \ void *ctx; \ COMMON_INTERCEPTOR_ENTER(ctx, fn, attr, r); \ int res = REAL(fn)(attr, r); \ if (!res && r) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, r, sz); \ return res; \ } #define INTERCEPTOR_PTHREAD_ATTR_GET(what, sz) \ INTERCEPTOR_PTHREAD_OBJECT_ATTR_GET(pthread_attr_get##what, sz) #define INTERCEPTOR_PTHREAD_MUTEXATTR_GET(what, sz) \ INTERCEPTOR_PTHREAD_OBJECT_ATTR_GET(pthread_mutexattr_get##what, sz) #define INTERCEPTOR_PTHREAD_RWLOCKATTR_GET(what, sz) \ INTERCEPTOR_PTHREAD_OBJECT_ATTR_GET(pthread_rwlockattr_get##what, sz) #define INTERCEPTOR_PTHREAD_CONDATTR_GET(what, sz) \ INTERCEPTOR_PTHREAD_OBJECT_ATTR_GET(pthread_condattr_get##what, sz) #define INTERCEPTOR_PTHREAD_BARRIERATTR_GET(what, sz) \ INTERCEPTOR_PTHREAD_OBJECT_ATTR_GET(pthread_barrierattr_get##what, sz) #endif #if SANITIZER_INTERCEPT_PTHREAD_ATTR_GET INTERCEPTOR_PTHREAD_ATTR_GET(detachstate, sizeof(int)) INTERCEPTOR_PTHREAD_ATTR_GET(guardsize, sizeof(SIZE_T)) INTERCEPTOR_PTHREAD_ATTR_GET(schedparam, struct_sched_param_sz) INTERCEPTOR_PTHREAD_ATTR_GET(schedpolicy, sizeof(int)) INTERCEPTOR_PTHREAD_ATTR_GET(scope, sizeof(int)) INTERCEPTOR_PTHREAD_ATTR_GET(stacksize, sizeof(SIZE_T)) INTERCEPTOR(int, pthread_attr_getstack, void *attr, void **addr, SIZE_T *size) { void *ctx; COMMON_INTERCEPTOR_ENTER(ctx, pthread_attr_getstack, attr, addr, size); // FIXME: under ASan the call below may write to freed memory and corrupt // its metadata. See // https://code.google.com/p/address-sanitizer/issues/detail?id=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_getschedparam); \ COMMON_INTERCEPT_FUNCTION(pthread_attr_getschedpolicy); \ COMMON_INTERCEPT_FUNCTION(pthread_attr_getscope); \ COMMON_INTERCEPT_FUNCTION(pthread_attr_getstacksize); \ COMMON_INTERCEPT_FUNCTION(pthread_attr_getstack); #else #define INIT_PTHREAD_ATTR_GET #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://code.google.com/p/address-sanitizer/issues/detail?id=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://code.google.com/p/address-sanitizer/issues/detail?id=321. COMMON_INTERCEPTOR_WRITE_RANGE(ctx, s, REAL(strlen)(s) + 1); else COMMON_INTERCEPTOR_INITIALIZE_RANGE(res, REAL(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://code.google.com/p/address-sanitizer/issues/detail?id=321. char *res = REAL(tmpnam_r)(s); if (res && s) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, s, REAL(strlen)(s) + 1); return res; } #define INIT_TMPNAM_R COMMON_INTERCEPT_FUNCTION(tmpnam_r); #else #define INIT_TMPNAM_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, REAL(strlen)(dir) + 1); if (pfx) COMMON_INTERCEPTOR_READ_RANGE(ctx, pfx, REAL(strlen)(pfx) + 1); char *res = REAL(tempnam)(dir, pfx); if (res) COMMON_INTERCEPTOR_INITIALIZE_RANGE(res, REAL(strlen)(res) + 1); return res; } #define INIT_TEMPNAM COMMON_INTERCEPT_FUNCTION(tempnam); #else #define INIT_TEMPNAM #endif #if SANITIZER_INTERCEPT_PTHREAD_SETNAME_NP INTERCEPTOR(int, pthread_setname_np, uptr thread, const char *name) { void *ctx; COMMON_INTERCEPTOR_ENTER(ctx, pthread_setname_np, thread, name); 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); #else #define INIT_PTHREAD_SETNAME_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://code.google.com/p/address-sanitizer/issues/detail?id=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://code.google.com/p/address-sanitizer/issues/detail?id=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://code.google.com/p/address-sanitizer/issues/detail?id=321. REAL(sincosl)(x, sin, cos); if (sin) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, sin, sizeof(*sin)); if (cos) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, cos, sizeof(*cos)); } #define INIT_SINCOS \ COMMON_INTERCEPT_FUNCTION(sincos); \ COMMON_INTERCEPT_FUNCTION(sincosf); \ COMMON_INTERCEPT_FUNCTION(sincosl); #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://code.google.com/p/address-sanitizer/issues/detail?id=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://code.google.com/p/address-sanitizer/issues/detail?id=321. float res = REAL(remquof)(x, y, quo); if (quo) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, quo, sizeof(*quo)); return res; } 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://code.google.com/p/address-sanitizer/issues/detail?id=321. long double res = REAL(remquol)(x, y, quo); if (quo) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, quo, sizeof(*quo)); return res; } #define INIT_REMQUO \ COMMON_INTERCEPT_FUNCTION(remquo); \ COMMON_INTERCEPT_FUNCTION(remquof); \ COMMON_INTERCEPT_FUNCTION(remquol); #else #define INIT_REMQUO #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; } 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_LGAMMA \ COMMON_INTERCEPT_FUNCTION(lgamma); \ COMMON_INTERCEPT_FUNCTION(lgammaf); \ COMMON_INTERCEPT_FUNCTION(lgammal); #else #define INIT_LGAMMA #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://code.google.com/p/address-sanitizer/issues/detail?id=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://code.google.com/p/address-sanitizer/issues/detail?id=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://code.google.com/p/address-sanitizer/issues/detail?id=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(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://code.google.com/p/address-sanitizer/issues/detail?id=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://code.google.com/p/address-sanitizer/issues/detail?id=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://code.google.com/p/address-sanitizer/issues/detail?id=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; } INTERCEPTOR(SSIZE_T, __getdelim, char **lineptr, SIZE_T *n, int delim, void *stream) { void *ctx; COMMON_INTERCEPTOR_ENTER(ctx, __getdelim, lineptr, n, delim, stream); // FIXME: under ASan the call below may write to freed memory and corrupt // its metadata. See // https://code.google.com/p/address-sanitizer/issues/detail?id=321. SSIZE_T res = REAL(__getdelim)(lineptr, n, delim, stream); if (res > 0) { COMMON_INTERCEPTOR_WRITE_RANGE(ctx, lineptr, sizeof(*lineptr)); COMMON_INTERCEPTOR_WRITE_RANGE(ctx, n, sizeof(*n)); COMMON_INTERCEPTOR_WRITE_RANGE(ctx, *lineptr, res + 1); } return res; } INTERCEPTOR(SSIZE_T, getdelim, char **lineptr, SIZE_T *n, int delim, void *stream) { return __getdelim(lineptr, n, delim, stream); } #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 : 0; // FIXME: under ASan the call below may write to freed memory and corrupt // its metadata. See // https://code.google.com/p/address-sanitizer/issues/detail?id=321. SIZE_T res = REAL(iconv)(cd, inbuf, inbytesleft, outbuf, outbytesleft); if (res != (SIZE_T) - 1 && 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://code.google.com/p/address-sanitizer/issues/detail?id=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_INTERCEPT_TLS_GET_ADDR #define INIT_TLS_GET_ADDR COMMON_INTERCEPT_FUNCTION(__tls_get_addr) INTERCEPTOR(void *, __tls_get_addr, void *arg) { void *ctx; COMMON_INTERCEPTOR_ENTER(ctx, __tls_get_addr, arg); void *res = REAL(__tls_get_addr)(arg); DTLS::DTV *dtv = DTLS_on_tls_get_addr(arg, res); if (dtv) { // New DTLS block has been allocated. COMMON_INTERCEPTOR_INITIALIZE_RANGE((void *)dtv->beg, dtv->size); } return res; } #else #define INIT_TLS_GET_ADDR #endif #if SANITIZER_INTERCEPT_LISTXATTR INTERCEPTOR(SSIZE_T, listxattr, const char *path, char *list, SIZE_T size) { void *ctx; COMMON_INTERCEPTOR_ENTER(ctx, listxattr, path, list, size); if (path) COMMON_INTERCEPTOR_READ_RANGE(ctx, path, REAL(strlen)(path) + 1); // FIXME: under ASan the call below may write to freed memory and corrupt // its metadata. See // https://code.google.com/p/address-sanitizer/issues/detail?id=321. SSIZE_T res = REAL(listxattr)(path, list, size); // Here and below, size == 0 is a special case where nothing is written to the // buffer, and res contains the desired buffer size. if (size && res > 0 && list) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, list, res); return res; } INTERCEPTOR(SSIZE_T, llistxattr, const char *path, char *list, SIZE_T size) { void *ctx; COMMON_INTERCEPTOR_ENTER(ctx, llistxattr, path, list, size); if (path) COMMON_INTERCEPTOR_READ_RANGE(ctx, path, REAL(strlen)(path) + 1); // FIXME: under ASan the call below may write to freed memory and corrupt // its metadata. See // https://code.google.com/p/address-sanitizer/issues/detail?id=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://code.google.com/p/address-sanitizer/issues/detail?id=321. SSIZE_T res = REAL(flistxattr)(fd, list, size); if (size && res > 0 && list) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, list, res); return res; } #define INIT_LISTXATTR \ COMMON_INTERCEPT_FUNCTION(listxattr); \ COMMON_INTERCEPT_FUNCTION(llistxattr); \ COMMON_INTERCEPT_FUNCTION(flistxattr); #else #define INIT_LISTXATTR #endif #if SANITIZER_INTERCEPT_GETXATTR INTERCEPTOR(SSIZE_T, getxattr, const char *path, const char *name, char *value, SIZE_T size) { void *ctx; COMMON_INTERCEPTOR_ENTER(ctx, getxattr, path, name, value, size); if (path) COMMON_INTERCEPTOR_READ_RANGE(ctx, path, REAL(strlen)(path) + 1); if (name) COMMON_INTERCEPTOR_READ_RANGE(ctx, name, REAL(strlen)(name) + 1); // FIXME: under ASan the call below may write to freed memory and corrupt // its metadata. See // https://code.google.com/p/address-sanitizer/issues/detail?id=321. SSIZE_T res = REAL(getxattr)(path, name, value, size); if (size && res > 0 && value) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, value, res); return res; } INTERCEPTOR(SSIZE_T, lgetxattr, const char *path, const char *name, char *value, SIZE_T size) { void *ctx; COMMON_INTERCEPTOR_ENTER(ctx, lgetxattr, path, name, value, size); if (path) COMMON_INTERCEPTOR_READ_RANGE(ctx, path, REAL(strlen)(path) + 1); if (name) COMMON_INTERCEPTOR_READ_RANGE(ctx, name, REAL(strlen)(name) + 1); // FIXME: under ASan the call below may write to freed memory and corrupt // its metadata. See // https://code.google.com/p/address-sanitizer/issues/detail?id=321. SSIZE_T res = REAL(lgetxattr)(path, name, value, size); if (size && res > 0 && value) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, value, res); return res; } INTERCEPTOR(SSIZE_T, fgetxattr, int fd, const char *name, char *value, SIZE_T size) { void *ctx; COMMON_INTERCEPTOR_ENTER(ctx, fgetxattr, fd, name, value, size); if (name) COMMON_INTERCEPTOR_READ_RANGE(ctx, name, REAL(strlen)(name) + 1); // FIXME: under ASan the call below may write to freed memory and corrupt // its metadata. See // https://code.google.com/p/address-sanitizer/issues/detail?id=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://code.google.com/p/address-sanitizer/issues/detail?id=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://code.google.com/p/address-sanitizer/issues/detail?id=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://code.google.com/p/address-sanitizer/issues/detail?id=321. int res = REAL(getifaddrs)(ifap); if (res == 0 && ifap) { COMMON_INTERCEPTOR_WRITE_RANGE(ctx, ifap, sizeof(void *)); __sanitizer_ifaddrs *p = *ifap; while (p) { COMMON_INTERCEPTOR_WRITE_RANGE(ctx, p, sizeof(__sanitizer_ifaddrs)); if (p->ifa_name) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, p->ifa_name, REAL(strlen)(p->ifa_name) + 1); if (p->ifa_addr) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, p->ifa_addr, struct_sockaddr_sz); if (p->ifa_netmask) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, p->ifa_netmask, struct_sockaddr_sz); // On Linux this is a union, but the other member also points to a // struct sockaddr, so the following is sufficient. if (p->ifa_dstaddr) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, p->ifa_dstaddr, struct_sockaddr_sz); // FIXME(smatveev): Unpoison p->ifa_data as well. p = p->ifa_next; } } return res; } #define INIT_GETIFADDRS \ COMMON_INTERCEPT_FUNCTION(getifaddrs); #else #define INIT_GETIFADDRS #endif #if SANITIZER_INTERCEPT_IF_INDEXTONAME INTERCEPTOR(char *, if_indextoname, unsigned int ifindex, char* ifname) { void *ctx; COMMON_INTERCEPTOR_ENTER(ctx, if_indextoname, ifindex, ifname); // FIXME: under ASan the call below may write to freed memory and corrupt // its metadata. See // https://code.google.com/p/address-sanitizer/issues/detail?id=321. char *res = REAL(if_indextoname)(ifindex, ifname); if (res && ifname) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, ifname, REAL(strlen)(ifname) + 1); return res; } INTERCEPTOR(unsigned int, if_nametoindex, const char* ifname) { void *ctx; COMMON_INTERCEPTOR_ENTER(ctx, if_nametoindex, ifname); if (ifname) COMMON_INTERCEPTOR_READ_RANGE(ctx, ifname, REAL(strlen)(ifname) + 1); return REAL(if_nametoindex)(ifname); } #define INIT_IF_INDEXTONAME \ COMMON_INTERCEPT_FUNCTION(if_indextoname); \ COMMON_INTERCEPT_FUNCTION(if_nametoindex); #else #define INIT_IF_INDEXTONAME #endif #if SANITIZER_INTERCEPT_CAPGET INTERCEPTOR(int, capget, void *hdrp, void *datap) { void *ctx; COMMON_INTERCEPTOR_ENTER(ctx, capget, hdrp, datap); if (hdrp) COMMON_INTERCEPTOR_READ_RANGE(ctx, hdrp, __user_cap_header_struct_sz); // FIXME: under ASan the call below may write to freed memory and corrupt // its metadata. See // https://code.google.com/p/address-sanitizer/issues/detail?id=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 DECLARE_REAL_AND_INTERCEPTOR(void *, memmove, void *, const void *, uptr); DECLARE_REAL_AND_INTERCEPTOR(void *, memcpy, void *, const void *, uptr); DECLARE_REAL_AND_INTERCEPTOR(void *, memset, void *, int, uptr); INTERCEPTOR(void *, __aeabi_memmove, void *to, const void *from, uptr size) { return WRAP(memmove)(to, from, size); } INTERCEPTOR(void *, __aeabi_memmove4, void *to, const void *from, uptr size) { return WRAP(memmove)(to, from, size); } INTERCEPTOR(void *, __aeabi_memmove8, void *to, const void *from, uptr size) { return WRAP(memmove)(to, from, size); } INTERCEPTOR(void *, __aeabi_memcpy, void *to, const void *from, uptr size) { return WRAP(memcpy)(to, from, size); } INTERCEPTOR(void *, __aeabi_memcpy4, void *to, const void *from, uptr size) { return WRAP(memcpy)(to, from, size); } INTERCEPTOR(void *, __aeabi_memcpy8, void *to, const void *from, uptr size) { return WRAP(memcpy)(to, from, size); } // Note the argument order. INTERCEPTOR(void *, __aeabi_memset, void *block, uptr size, int c) { return WRAP(memset)(block, c, size); } INTERCEPTOR(void *, __aeabi_memset4, void *block, uptr size, int c) { return WRAP(memset)(block, c, size); } INTERCEPTOR(void *, __aeabi_memset8, void *block, uptr size, int c) { return WRAP(memset)(block, c, size); } INTERCEPTOR(void *, __aeabi_memclr, void *block, uptr size) { return WRAP(memset)(block, 0, size); } INTERCEPTOR(void *, __aeabi_memclr4, void *block, uptr size) { return WRAP(memset)(block, 0, size); } INTERCEPTOR(void *, __aeabi_memclr8, void *block, uptr size) { return WRAP(memset)(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 DECLARE_REAL_AND_INTERCEPTOR(void *, memset, void *, int, uptr); INTERCEPTOR(void *, __bzero, void *block, uptr size) { return WRAP(memset)(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://code.google.com/p/address-sanitizer/issues/detail?id=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://code.google.com/p/address-sanitizer/issues/detail?id=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://code.google.com/p/address-sanitizer/issues/detail?id=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://code.google.com/p/address-sanitizer/issues/detail?id=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://code.google.com/p/address-sanitizer/issues/detail?id=321. int res = REAL(xdr_bytes)(xdrs, p, sizep, maxsize); if (p && sizep && xdrs->x_op == __sanitizer_XDR_DECODE) { COMMON_INTERCEPTOR_WRITE_RANGE(ctx, p, sizeof(*p)); COMMON_INTERCEPTOR_WRITE_RANGE(ctx, sizep, sizeof(*sizep)); if (res && *p && *sizep) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, *p, *sizep); } return res; } INTERCEPTOR(int, xdr_string, __sanitizer_XDR *xdrs, char **p, unsigned maxsize) { void *ctx; COMMON_INTERCEPTOR_ENTER(ctx, xdr_string, xdrs, p, maxsize); if (p && xdrs->x_op == __sanitizer_XDR_ENCODE) { COMMON_INTERCEPTOR_READ_RANGE(ctx, p, sizeof(*p)); COMMON_INTERCEPTOR_READ_RANGE(ctx, *p, REAL(strlen)(*p) + 1); } // FIXME: under ASan the call below may write to freed memory and corrupt // its metadata. See // https://code.google.com/p/address-sanitizer/issues/detail?id=321. int res = REAL(xdr_string)(xdrs, p, maxsize); if (p && xdrs->x_op == __sanitizer_XDR_DECODE) { COMMON_INTERCEPTOR_WRITE_RANGE(ctx, p, sizeof(*p)); if (res && *p) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, *p, REAL(strlen)(*p) + 1); } return res; } #define INIT_XDR \ COMMON_INTERCEPT_FUNCTION(xdrmem_create); \ COMMON_INTERCEPT_FUNCTION(xdrstdio_create); \ COMMON_INTERCEPT_FUNCTION(xdr_short); \ COMMON_INTERCEPT_FUNCTION(xdr_u_short); \ COMMON_INTERCEPT_FUNCTION(xdr_int); \ COMMON_INTERCEPT_FUNCTION(xdr_u_int); \ COMMON_INTERCEPT_FUNCTION(xdr_long); \ COMMON_INTERCEPT_FUNCTION(xdr_u_long); \ COMMON_INTERCEPT_FUNCTION(xdr_hyper); \ COMMON_INTERCEPT_FUNCTION(xdr_u_hyper); \ COMMON_INTERCEPT_FUNCTION(xdr_longlong_t); \ COMMON_INTERCEPT_FUNCTION(xdr_u_longlong_t); \ COMMON_INTERCEPT_FUNCTION(xdr_int8_t); \ COMMON_INTERCEPT_FUNCTION(xdr_uint8_t); \ COMMON_INTERCEPT_FUNCTION(xdr_int16_t); \ COMMON_INTERCEPT_FUNCTION(xdr_uint16_t); \ COMMON_INTERCEPT_FUNCTION(xdr_int32_t); \ COMMON_INTERCEPT_FUNCTION(xdr_uint32_t); \ COMMON_INTERCEPT_FUNCTION(xdr_int64_t); \ COMMON_INTERCEPT_FUNCTION(xdr_uint64_t); \ COMMON_INTERCEPT_FUNCTION(xdr_quad_t); \ COMMON_INTERCEPT_FUNCTION(xdr_u_quad_t); \ COMMON_INTERCEPT_FUNCTION(xdr_bool); \ COMMON_INTERCEPT_FUNCTION(xdr_enum); \ COMMON_INTERCEPT_FUNCTION(xdr_char); \ COMMON_INTERCEPT_FUNCTION(xdr_u_char); \ COMMON_INTERCEPT_FUNCTION(xdr_float); \ COMMON_INTERCEPT_FUNCTION(xdr_double); \ COMMON_INTERCEPT_FUNCTION(xdr_bytes); \ COMMON_INTERCEPT_FUNCTION(xdr_string); #else #define INIT_XDR #endif // SANITIZER_INTERCEPT_XDR #if SANITIZER_INTERCEPT_TSEARCH INTERCEPTOR(void *, tsearch, void *key, void **rootp, int (*compar)(const void *, const void *)) { void *ctx; COMMON_INTERCEPTOR_ENTER(ctx, tsearch, key, rootp, compar); // FIXME: under ASan the call below may write to freed memory and corrupt // its metadata. See // https://code.google.com/p/address-sanitizer/issues/detail?id=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 (fp->_IO_read_base && fp->_IO_read_base < fp->_IO_read_end) COMMON_INTERCEPTOR_INITIALIZE_RANGE(fp->_IO_read_base, fp->_IO_read_end - fp->_IO_read_base); #endif // 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); COMMON_INTERCEPTOR_READ_RANGE(ctx, path, REAL(strlen)(path) + 1); COMMON_INTERCEPTOR_READ_RANGE(ctx, mode, REAL(strlen)(mode) + 1); __sanitizer_FILE *res = REAL(fopen)(path, mode); COMMON_INTERCEPTOR_FILE_OPEN(ctx, res, path); if (res) unpoison_file(res); return res; } INTERCEPTOR(__sanitizer_FILE *, fdopen, int fd, const char *mode) { void *ctx; COMMON_INTERCEPTOR_ENTER(ctx, fdopen, fd, mode); COMMON_INTERCEPTOR_READ_RANGE(ctx, mode, REAL(strlen)(mode) + 1); __sanitizer_FILE *res = REAL(fdopen)(fd, mode); if (res) unpoison_file(res); return res; } INTERCEPTOR(__sanitizer_FILE *, freopen, const char *path, const char *mode, __sanitizer_FILE *fp) { void *ctx; COMMON_INTERCEPTOR_ENTER(ctx, freopen, path, mode, fp); COMMON_INTERCEPTOR_READ_RANGE(ctx, path, REAL(strlen)(path) + 1); COMMON_INTERCEPTOR_READ_RANGE(ctx, mode, REAL(strlen)(mode) + 1); COMMON_INTERCEPTOR_FILE_CLOSE(ctx, fp); __sanitizer_FILE *res = REAL(freopen)(path, mode, fp); COMMON_INTERCEPTOR_FILE_OPEN(ctx, res, path); if (res) unpoison_file(res); return res; } #define INIT_FOPEN \ COMMON_INTERCEPT_FUNCTION(fopen); \ COMMON_INTERCEPT_FUNCTION(fdopen); \ COMMON_INTERCEPT_FUNCTION(freopen); #else #define INIT_FOPEN #endif #if SANITIZER_INTERCEPT_FOPEN64 INTERCEPTOR(__sanitizer_FILE *, fopen64, const char *path, const char *mode) { void *ctx; COMMON_INTERCEPTOR_ENTER(ctx, fopen64, path, mode); COMMON_INTERCEPTOR_READ_RANGE(ctx, path, REAL(strlen)(path) + 1); COMMON_INTERCEPTOR_READ_RANGE(ctx, mode, REAL(strlen)(mode) + 1); __sanitizer_FILE *res = REAL(fopen64)(path, mode); COMMON_INTERCEPTOR_FILE_OPEN(ctx, res, path); if (res) unpoison_file(res); return res; } INTERCEPTOR(__sanitizer_FILE *, freopen64, const char *path, const char *mode, __sanitizer_FILE *fp) { void *ctx; COMMON_INTERCEPTOR_ENTER(ctx, freopen64, path, mode, fp); COMMON_INTERCEPTOR_READ_RANGE(ctx, path, REAL(strlen)(path) + 1); COMMON_INTERCEPTOR_READ_RANGE(ctx, mode, REAL(strlen)(mode) + 1); COMMON_INTERCEPTOR_FILE_CLOSE(ctx, fp); __sanitizer_FILE *res = REAL(freopen64)(path, mode, fp); COMMON_INTERCEPTOR_FILE_OPEN(ctx, res, path); if (res) unpoison_file(res); return res; } #define INIT_FOPEN64 \ COMMON_INTERCEPT_FUNCTION(fopen64); \ COMMON_INTERCEPT_FUNCTION(freopen64); #else #define INIT_FOPEN64 #endif #if SANITIZER_INTERCEPT_OPEN_MEMSTREAM INTERCEPTOR(__sanitizer_FILE *, open_memstream, char **ptr, SIZE_T *sizeloc) { void *ctx; COMMON_INTERCEPTOR_ENTER(ctx, open_memstream, ptr, sizeloc); // FIXME: under ASan the call below may write to freed memory and corrupt // its metadata. See // https://code.google.com/p/address-sanitizer/issues/detail?id=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://code.google.com/p/address-sanitizer/issues/detail?id=321. __sanitizer_FILE *res = REAL(fmemopen)(buf, size, mode); if (res) unpoison_file(res); return res; } #define INIT_OPEN_MEMSTREAM \ COMMON_INTERCEPT_FUNCTION(open_memstream); \ COMMON_INTERCEPT_FUNCTION(open_wmemstream); \ COMMON_INTERCEPT_FUNCTION(fmemopen); #else #define INIT_OPEN_MEMSTREAM #endif #if SANITIZER_INTERCEPT_OBSTACK static void initialize_obstack(__sanitizer_obstack *obstack) { COMMON_INTERCEPTOR_INITIALIZE_RANGE(obstack, sizeof(*obstack)); if (obstack->chunk) COMMON_INTERCEPTOR_INITIALIZE_RANGE(obstack->chunk, sizeof(*obstack->chunk)); } INTERCEPTOR(int, _obstack_begin_1, __sanitizer_obstack *obstack, int sz, int align, void *(*alloc_fn)(uptr arg, uptr sz), void (*free_fn)(uptr arg, void *p)) { void *ctx; COMMON_INTERCEPTOR_ENTER(ctx, _obstack_begin_1, obstack, sz, align, alloc_fn, free_fn); int res = REAL(_obstack_begin_1)(obstack, sz, align, alloc_fn, free_fn); if (res) initialize_obstack(obstack); return res; } INTERCEPTOR(int, _obstack_begin, __sanitizer_obstack *obstack, int sz, int align, void *(*alloc_fn)(uptr sz), void (*free_fn)(void *p)) { void *ctx; COMMON_INTERCEPTOR_ENTER(ctx, _obstack_begin, obstack, sz, align, alloc_fn, free_fn); int res = REAL(_obstack_begin)(obstack, sz, align, alloc_fn, free_fn); if (res) initialize_obstack(obstack); return res; } INTERCEPTOR(void, _obstack_newchunk, __sanitizer_obstack *obstack, int length) { void *ctx; COMMON_INTERCEPTOR_ENTER(ctx, _obstack_newchunk, obstack, length); REAL(_obstack_newchunk)(obstack, length); if (obstack->chunk) COMMON_INTERCEPTOR_INITIALIZE_RANGE( obstack->chunk, obstack->next_free - (char *)obstack->chunk); } #define INIT_OBSTACK \ COMMON_INTERCEPT_FUNCTION(_obstack_begin_1); \ COMMON_INTERCEPT_FUNCTION(_obstack_begin); \ COMMON_INTERCEPT_FUNCTION(_obstack_newchunk); #else #define INIT_OBSTACK #endif #if SANITIZER_INTERCEPT_FFLUSH INTERCEPTOR(int, fflush, __sanitizer_FILE *fp) { void *ctx; COMMON_INTERCEPTOR_ENTER(ctx, fflush, fp); int res = REAL(fflush)(fp); // FIXME: handle fp == NULL if (fp) { const FileMetadata *m = GetInterceptorMetadata(fp); if (m) COMMON_INTERCEPTOR_INITIALIZE_RANGE(*m->addr, *m->size); } return res; } #define INIT_FFLUSH COMMON_INTERCEPT_FUNCTION(fflush); #else #define INIT_FFLUSH #endif #if SANITIZER_INTERCEPT_FCLOSE INTERCEPTOR(int, fclose, __sanitizer_FILE *fp) { void *ctx; COMMON_INTERCEPTOR_ENTER(ctx, fclose, fp); if (fp) { COMMON_INTERCEPTOR_FILE_CLOSE(ctx, fp); const FileMetadata *m = GetInterceptorMetadata(fp); if (m) { COMMON_INTERCEPTOR_INITIALIZE_RANGE(*m->addr, *m->size); DeleteInterceptorMetadata(fp); } } return REAL(fclose)(fp); } #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); void *res = REAL(dlopen)(filename, flag); 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); COMMON_INTERCEPTOR_LIBRARY_UNLOADED(); return res; } #define INIT_DLOPEN_DLCLOSE \ COMMON_INTERCEPT_FUNCTION(dlopen); \ COMMON_INTERCEPT_FUNCTION(dlclose); #else #define INIT_DLOPEN_DLCLOSE #endif #if SANITIZER_INTERCEPT_GETPASS INTERCEPTOR(char *, getpass, const char *prompt) { void *ctx; COMMON_INTERCEPTOR_ENTER(ctx, getpass, prompt); if (prompt) COMMON_INTERCEPTOR_READ_RANGE(ctx, prompt, REAL(strlen)(prompt)+1); char *res = REAL(getpass)(prompt); if (res) COMMON_INTERCEPTOR_INITIALIZE_RANGE(res, REAL(strlen)(res)+1); return res; } #define INIT_GETPASS COMMON_INTERCEPT_FUNCTION(getpass); #else #define INIT_GETPASS #endif #if SANITIZER_INTERCEPT_TIMERFD INTERCEPTOR(int, timerfd_settime, int fd, int flags, void *new_value, void *old_value) { void *ctx; COMMON_INTERCEPTOR_ENTER(ctx, timerfd_settime, fd, flags, new_value, old_value); COMMON_INTERCEPTOR_READ_RANGE(ctx, new_value, struct_itimerspec_sz); int res = REAL(timerfd_settime)(fd, flags, new_value, old_value); if (res != -1 && old_value) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, old_value, struct_itimerspec_sz); return res; } INTERCEPTOR(int, timerfd_gettime, int fd, void *curr_value) { void *ctx; COMMON_INTERCEPTOR_ENTER(ctx, timerfd_gettime, fd, curr_value); int res = REAL(timerfd_gettime)(fd, curr_value); if (res != -1 && curr_value) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, curr_value, struct_itimerspec_sz); return res; } #define INIT_TIMERFD \ COMMON_INTERCEPT_FUNCTION(timerfd_settime); \ COMMON_INTERCEPT_FUNCTION(timerfd_gettime); #else #define INIT_TIMERFD #endif #if SANITIZER_INTERCEPT_MLOCKX // Linux kernel has a bug that leads to kernel deadlock if a process // maps TBs of memory and then calls mlock(). static void MlockIsUnsupported() { static atomic_uint8_t printed; if (atomic_exchange(&printed, 1, memory_order_relaxed)) return; VPrintf(1, "INFO: %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 static void InitializeCommonInterceptors() { static u64 metadata_mem[sizeof(MetadataHashMap) / sizeof(u64) + 1]; interceptor_metadata_map = new((void *)&metadata_mem) MetadataHashMap(); INIT_TEXTDOMAIN; INIT_STRCMP; INIT_STRNCMP; INIT_STRCASECMP; INIT_STRNCASECMP; INIT_MEMCHR; INIT_MEMRCHR; INIT_READ; INIT_PREAD; INIT_PREAD64; INIT_READV; INIT_PREADV; INIT_PREADV64; INIT_WRITE; INIT_PWRITE; INIT_PWRITE64; INIT_WRITEV; INIT_PWRITEV; INIT_PWRITEV64; INIT_PRCTL; INIT_LOCALTIME_AND_FRIENDS; INIT_STRPTIME; INIT_SCANF; INIT_ISOC99_SCANF; INIT_PRINTF; 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_SETPWENT; INIT_CLOCK_GETTIME; INIT_GETITIMER; INIT_TIME; INIT_GLOB; INIT_WAIT; INIT_WAIT4; INIT_INET; INIT_PTHREAD_GETSCHEDPARAM; INIT_GETADDRINFO; INIT_GETNAMEINFO; INIT_GETSOCKNAME; INIT_GETHOSTBYNAME; INIT_GETHOSTBYNAME_R; INIT_GETHOSTBYNAME2_R; INIT_GETHOSTBYADDR_R; INIT_GETHOSTENT_R; INIT_GETSOCKOPT; INIT_ACCEPT; INIT_ACCEPT4; INIT_MODF; INIT_RECVMSG; INIT_GETPEERNAME; INIT_IOCTL; INIT_INET_ATON; INIT_SYSINFO; INIT_READDIR; INIT_READDIR64; INIT_PTRACE; INIT_SETLOCALE; INIT_GETCWD; INIT_GET_CURRENT_DIR_NAME; INIT_STRTOIMAX; INIT_MBSTOWCS; INIT_MBSNRTOWCS; INIT_WCSTOMBS; INIT_WCSNRTOMBS; INIT_TCGETATTR; INIT_REALPATH; INIT_CANONICALIZE_FILE_NAME; INIT_CONFSTR; INIT_SCHED_GETAFFINITY; INIT_STRERROR; INIT_STRERROR_R; INIT_XPG_STRERROR_R; INIT_SCANDIR; INIT_SCANDIR64; INIT_GETGROUPS; INIT_POLL; INIT_PPOLL; INIT_WORDEXP; INIT_SIGWAIT; INIT_SIGWAITINFO; INIT_SIGTIMEDWAIT; INIT_SIGSETOPS; INIT_SIGPENDING; INIT_SIGPROCMASK; INIT_BACKTRACE; INIT__EXIT; INIT_PTHREAD_MUTEX_LOCK; INIT_PTHREAD_MUTEX_UNLOCK; INIT_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_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_TEMPNAM; INIT_PTHREAD_SETNAME_NP; INIT_SINCOS; INIT_REMQUO; INIT_LGAMMA; 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_FTIME; INIT_XDR; INIT_TSEARCH; INIT_LIBIO_INTERNALS; INIT_FOPEN; INIT_FOPEN64; INIT_OPEN_MEMSTREAM; INIT_OBSTACK; INIT_FFLUSH; INIT_FCLOSE; INIT_DLOPEN_DLCLOSE; INIT_GETPASS; INIT_TIMERFD; INIT_MLOCKX; }