1 //===-- sanitizer_common_interceptors.inc -----------------------*- C++ -*-===// 2 // 3 // The LLVM Compiler Infrastructure 4 // 5 // This file is distributed under the University of Illinois Open Source 6 // License. See LICENSE.TXT for details. 7 // 8 //===----------------------------------------------------------------------===// 9 // 10 // Common function interceptors for tools like AddressSanitizer, 11 // ThreadSanitizer, MemorySanitizer, etc. 12 // 13 // This file should be included into the tool's interceptor file, 14 // which has to define its own macros: 15 // COMMON_INTERCEPTOR_ENTER 16 // COMMON_INTERCEPTOR_ENTER_NOIGNORE 17 // COMMON_INTERCEPTOR_READ_RANGE 18 // COMMON_INTERCEPTOR_WRITE_RANGE 19 // COMMON_INTERCEPTOR_INITIALIZE_RANGE 20 // COMMON_INTERCEPTOR_DIR_ACQUIRE 21 // COMMON_INTERCEPTOR_FD_ACQUIRE 22 // COMMON_INTERCEPTOR_FD_RELEASE 23 // COMMON_INTERCEPTOR_FD_ACCESS 24 // COMMON_INTERCEPTOR_SET_THREAD_NAME 25 // COMMON_INTERCEPTOR_ON_DLOPEN 26 // COMMON_INTERCEPTOR_ON_EXIT 27 // COMMON_INTERCEPTOR_MUTEX_PRE_LOCK 28 // COMMON_INTERCEPTOR_MUTEX_POST_LOCK 29 // COMMON_INTERCEPTOR_MUTEX_UNLOCK 30 // COMMON_INTERCEPTOR_MUTEX_REPAIR 31 // COMMON_INTERCEPTOR_SET_PTHREAD_NAME 32 // COMMON_INTERCEPTOR_HANDLE_RECVMSG 33 // COMMON_INTERCEPTOR_NOTHING_IS_INITIALIZED 34 // COMMON_INTERCEPTOR_MEMSET_IMPL 35 // COMMON_INTERCEPTOR_MEMMOVE_IMPL 36 // COMMON_INTERCEPTOR_MEMCPY_IMPL 37 // COMMON_INTERCEPTOR_MMAP_IMPL 38 // COMMON_INTERCEPTOR_COPY_STRING 39 // COMMON_INTERCEPTOR_STRNDUP_IMPL 40 //===----------------------------------------------------------------------===// 41 42 #include "interception/interception.h" 43 #include "sanitizer_addrhashmap.h" 44 #include "sanitizer_errno.h" 45 #include "sanitizer_placement_new.h" 46 #include "sanitizer_platform_interceptors.h" 47 #include "sanitizer_symbolizer.h" 48 #include "sanitizer_tls_get_addr.h" 49 50 #include <stdarg.h> 51 52 #if SANITIZER_INTERCEPTOR_HOOKS 53 #define CALL_WEAK_INTERCEPTOR_HOOK(f, ...) f(__VA_ARGS__); 54 #define DECLARE_WEAK_INTERCEPTOR_HOOK(f, ...) \ 55 SANITIZER_INTERFACE_WEAK_DEF(void, f, __VA_ARGS__) {} 56 #else 57 #define DECLARE_WEAK_INTERCEPTOR_HOOK(f, ...) 58 #define CALL_WEAK_INTERCEPTOR_HOOK(f, ...) 59 60 #endif // SANITIZER_INTERCEPTOR_HOOKS 61 62 #if SANITIZER_WINDOWS && !defined(va_copy) 63 #define va_copy(dst, src) ((dst) = (src)) 64 #endif // _WIN32 65 66 #if SANITIZER_FREEBSD 67 #define pthread_setname_np pthread_set_name_np 68 #define inet_aton __inet_aton 69 #define inet_pton __inet_pton 70 #define iconv __bsd_iconv 71 #endif 72 73 #if SANITIZER_NETBSD 74 #define clock_getres __clock_getres50 75 #define clock_gettime __clock_gettime50 76 #define clock_settime __clock_settime50 77 #define ctime __ctime50 78 #define ctime_r __ctime_r50 79 #define devname __devname50 80 #define fgetpos __fgetpos50 81 #define fsetpos __fsetpos50 82 #define fts_children __fts_children60 83 #define fts_close __fts_close60 84 #define fts_open __fts_open60 85 #define fts_read __fts_read60 86 #define fts_set __fts_set60 87 #define getitimer __getitimer50 88 #define getmntinfo __getmntinfo13 89 #define getpwent __getpwent50 90 #define getpwnam __getpwnam50 91 #define getpwnam_r __getpwnam_r50 92 #define getpwuid __getpwuid50 93 #define getpwuid_r __getpwuid_r50 94 #define getutent __getutent50 95 #define getutxent __getutxent50 96 #define getutxid __getutxid50 97 #define getutxline __getutxline50 98 #define glob __glob30 99 #define gmtime __gmtime50 100 #define gmtime_r __gmtime_r50 101 #define localtime __locatime50 102 #define localtime_r __localtime_r50 103 #define mktime __mktime50 104 #define lstat __lstat50 105 #define opendir __opendir30 106 #define readdir __readdir30 107 #define readdir_r __readdir_r30 108 #define scandir __scandir30 109 #define setitimer __setitimer50 110 #define setlocale __setlocale50 111 #define shmctl __shmctl50 112 #define sigemptyset __sigemptyset14 113 #define sigfillset __sigfillset14 114 #define sigpending __sigpending14 115 #define sigprocmask __sigprocmask14 116 #define sigtimedwait __sigtimedwait50 117 #define stat __stat50 118 #define time __time50 119 #define times __times13 120 #define unvis __unvis50 121 #define wait3 __wait350 122 #define wait4 __wait450 123 extern const unsigned short *_ctype_tab_; 124 extern const short *_toupper_tab_; 125 extern const short *_tolower_tab_; 126 #endif 127 128 // Platform-specific options. 129 #if SANITIZER_MAC 130 namespace __sanitizer { 131 bool PlatformHasDifferentMemcpyAndMemmove(); 132 } 133 #define PLATFORM_HAS_DIFFERENT_MEMCPY_AND_MEMMOVE \ 134 (__sanitizer::PlatformHasDifferentMemcpyAndMemmove()) 135 #elif SANITIZER_WINDOWS64 136 #define PLATFORM_HAS_DIFFERENT_MEMCPY_AND_MEMMOVE false 137 #else 138 #define PLATFORM_HAS_DIFFERENT_MEMCPY_AND_MEMMOVE true 139 #endif // SANITIZER_MAC 140 141 #ifndef COMMON_INTERCEPTOR_INITIALIZE_RANGE 142 #define COMMON_INTERCEPTOR_INITIALIZE_RANGE(p, size) {} 143 #endif 144 145 #ifndef COMMON_INTERCEPTOR_UNPOISON_PARAM 146 #define COMMON_INTERCEPTOR_UNPOISON_PARAM(count) {} 147 #endif 148 149 #ifndef COMMON_INTERCEPTOR_FD_ACCESS 150 #define COMMON_INTERCEPTOR_FD_ACCESS(ctx, fd) {} 151 #endif 152 153 #ifndef COMMON_INTERCEPTOR_MUTEX_PRE_LOCK 154 #define COMMON_INTERCEPTOR_MUTEX_PRE_LOCK(ctx, m) {} 155 #endif 156 157 #ifndef COMMON_INTERCEPTOR_MUTEX_POST_LOCK 158 #define COMMON_INTERCEPTOR_MUTEX_POST_LOCK(ctx, m) {} 159 #endif 160 161 #ifndef COMMON_INTERCEPTOR_MUTEX_UNLOCK 162 #define COMMON_INTERCEPTOR_MUTEX_UNLOCK(ctx, m) {} 163 #endif 164 165 #ifndef COMMON_INTERCEPTOR_MUTEX_REPAIR 166 #define COMMON_INTERCEPTOR_MUTEX_REPAIR(ctx, m) {} 167 #endif 168 169 #ifndef COMMON_INTERCEPTOR_MUTEX_INVALID 170 #define COMMON_INTERCEPTOR_MUTEX_INVALID(ctx, m) {} 171 #endif 172 173 #ifndef COMMON_INTERCEPTOR_HANDLE_RECVMSG 174 #define COMMON_INTERCEPTOR_HANDLE_RECVMSG(ctx, msg) ((void)(msg)) 175 #endif 176 177 #ifndef COMMON_INTERCEPTOR_FILE_OPEN 178 #define COMMON_INTERCEPTOR_FILE_OPEN(ctx, file, path) {} 179 #endif 180 181 #ifndef COMMON_INTERCEPTOR_FILE_CLOSE 182 #define COMMON_INTERCEPTOR_FILE_CLOSE(ctx, file) {} 183 #endif 184 185 #ifndef COMMON_INTERCEPTOR_LIBRARY_LOADED 186 #define COMMON_INTERCEPTOR_LIBRARY_LOADED(filename, handle) {} 187 #endif 188 189 #ifndef COMMON_INTERCEPTOR_LIBRARY_UNLOADED 190 #define COMMON_INTERCEPTOR_LIBRARY_UNLOADED() {} 191 #endif 192 193 #ifndef COMMON_INTERCEPTOR_ENTER_NOIGNORE 194 #define COMMON_INTERCEPTOR_ENTER_NOIGNORE(ctx, ...) \ 195 COMMON_INTERCEPTOR_ENTER(ctx, __VA_ARGS__) 196 #endif 197 198 #ifndef COMMON_INTERCEPTOR_NOTHING_IS_INITIALIZED 199 #define COMMON_INTERCEPTOR_NOTHING_IS_INITIALIZED (0) 200 #endif 201 202 #define COMMON_INTERCEPTOR_READ_STRING(ctx, s, n) \ 203 COMMON_INTERCEPTOR_READ_RANGE((ctx), (s), \ 204 common_flags()->strict_string_checks ? (REAL(strlen)(s)) + 1 : (n) ) 205 206 #ifndef COMMON_INTERCEPTOR_ON_DLOPEN 207 #define COMMON_INTERCEPTOR_ON_DLOPEN(filename, flag) \ 208 CheckNoDeepBind(filename, flag); 209 #endif 210 211 #ifndef COMMON_INTERCEPTOR_GET_TLS_RANGE 212 #define COMMON_INTERCEPTOR_GET_TLS_RANGE(begin, end) *begin = *end = 0; 213 #endif 214 215 #ifndef COMMON_INTERCEPTOR_ACQUIRE 216 #define COMMON_INTERCEPTOR_ACQUIRE(ctx, u) {} 217 #endif 218 219 #ifndef COMMON_INTERCEPTOR_RELEASE 220 #define COMMON_INTERCEPTOR_RELEASE(ctx, u) {} 221 #endif 222 223 #ifndef COMMON_INTERCEPTOR_USER_CALLBACK_START 224 #define COMMON_INTERCEPTOR_USER_CALLBACK_START() {} 225 #endif 226 227 #ifndef COMMON_INTERCEPTOR_USER_CALLBACK_END 228 #define COMMON_INTERCEPTOR_USER_CALLBACK_END() {} 229 #endif 230 231 #ifdef SANITIZER_NLDBL_VERSION 232 #define COMMON_INTERCEPT_FUNCTION_LDBL(fn) \ 233 COMMON_INTERCEPT_FUNCTION_VER(fn, SANITIZER_NLDBL_VERSION) 234 #else 235 #define COMMON_INTERCEPT_FUNCTION_LDBL(fn) \ 236 COMMON_INTERCEPT_FUNCTION(fn) 237 #endif 238 239 #ifndef COMMON_INTERCEPTOR_MEMSET_IMPL 240 #define COMMON_INTERCEPTOR_MEMSET_IMPL(ctx, dst, v, size) \ 241 { \ 242 if (COMMON_INTERCEPTOR_NOTHING_IS_INITIALIZED) \ 243 return internal_memset(dst, v, size); \ 244 COMMON_INTERCEPTOR_ENTER(ctx, memset, dst, v, size); \ 245 if (common_flags()->intercept_intrin) \ 246 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, dst, size); \ 247 return REAL(memset)(dst, v, size); \ 248 } 249 #endif 250 251 #ifndef COMMON_INTERCEPTOR_MEMMOVE_IMPL 252 #define COMMON_INTERCEPTOR_MEMMOVE_IMPL(ctx, dst, src, size) \ 253 { \ 254 if (COMMON_INTERCEPTOR_NOTHING_IS_INITIALIZED) \ 255 return internal_memmove(dst, src, size); \ 256 COMMON_INTERCEPTOR_ENTER(ctx, memmove, dst, src, size); \ 257 if (common_flags()->intercept_intrin) { \ 258 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, dst, size); \ 259 COMMON_INTERCEPTOR_READ_RANGE(ctx, src, size); \ 260 } \ 261 return REAL(memmove)(dst, src, size); \ 262 } 263 #endif 264 265 #ifndef COMMON_INTERCEPTOR_MEMCPY_IMPL 266 #define COMMON_INTERCEPTOR_MEMCPY_IMPL(ctx, dst, src, size) \ 267 { \ 268 if (COMMON_INTERCEPTOR_NOTHING_IS_INITIALIZED) { \ 269 return internal_memmove(dst, src, size); \ 270 } \ 271 COMMON_INTERCEPTOR_ENTER(ctx, memcpy, dst, src, size); \ 272 if (common_flags()->intercept_intrin) { \ 273 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, dst, size); \ 274 COMMON_INTERCEPTOR_READ_RANGE(ctx, src, size); \ 275 } \ 276 return REAL(memcpy)(dst, src, size); \ 277 } 278 #endif 279 280 #ifndef COMMON_INTERCEPTOR_MMAP_IMPL 281 #define COMMON_INTERCEPTOR_MMAP_IMPL(ctx, mmap, addr, sz, prot, flags, fd, \ 282 off) \ 283 { return REAL(mmap)(addr, sz, prot, flags, fd, off); } 284 #endif 285 286 #ifndef COMMON_INTERCEPTOR_COPY_STRING 287 #define COMMON_INTERCEPTOR_COPY_STRING(ctx, to, from, size) {} 288 #endif 289 290 #ifndef COMMON_INTERCEPTOR_STRNDUP_IMPL 291 #define COMMON_INTERCEPTOR_STRNDUP_IMPL(ctx, s, size) \ 292 COMMON_INTERCEPTOR_ENTER(ctx, strndup, s, size); \ 293 uptr copy_length = internal_strnlen(s, size); \ 294 char *new_mem = (char *)WRAP(malloc)(copy_length + 1); \ 295 if (common_flags()->intercept_strndup) { \ 296 COMMON_INTERCEPTOR_READ_STRING(ctx, s, Min(size, copy_length + 1)); \ 297 } \ 298 COMMON_INTERCEPTOR_COPY_STRING(ctx, new_mem, s, copy_length); \ 299 internal_memcpy(new_mem, s, copy_length); \ 300 new_mem[copy_length] = '\0'; \ 301 return new_mem; 302 #endif 303 304 struct FileMetadata { 305 // For open_memstream(). 306 char **addr; 307 SIZE_T *size; 308 }; 309 310 struct CommonInterceptorMetadata { 311 enum { 312 CIMT_INVALID = 0, 313 CIMT_FILE 314 } type; 315 union { 316 FileMetadata file; 317 }; 318 }; 319 320 typedef AddrHashMap<CommonInterceptorMetadata, 31051> MetadataHashMap; 321 322 static MetadataHashMap *interceptor_metadata_map; 323 324 #if SI_POSIX 325 UNUSED static void SetInterceptorMetadata(__sanitizer_FILE *addr, 326 const FileMetadata &file) { 327 MetadataHashMap::Handle h(interceptor_metadata_map, (uptr)addr); 328 CHECK(h.created()); 329 h->type = CommonInterceptorMetadata::CIMT_FILE; 330 h->file = file; 331 } 332 333 UNUSED static const FileMetadata *GetInterceptorMetadata( 334 __sanitizer_FILE *addr) { 335 MetadataHashMap::Handle h(interceptor_metadata_map, (uptr)addr, 336 /* remove */ false, 337 /* create */ false); 338 if (addr && h.exists()) { 339 CHECK(!h.created()); 340 CHECK(h->type == CommonInterceptorMetadata::CIMT_FILE); 341 return &h->file; 342 } else { 343 return 0; 344 } 345 } 346 347 UNUSED static void DeleteInterceptorMetadata(void *addr) { 348 MetadataHashMap::Handle h(interceptor_metadata_map, (uptr)addr, true); 349 CHECK(h.exists()); 350 } 351 #endif // SI_POSIX 352 353 #if SANITIZER_INTERCEPT_STRLEN 354 INTERCEPTOR(SIZE_T, strlen, const char *s) { 355 // Sometimes strlen is called prior to InitializeCommonInterceptors, 356 // in which case the REAL(strlen) typically used in 357 // COMMON_INTERCEPTOR_ENTER will fail. We use internal_strlen here 358 // to handle that. 359 if (COMMON_INTERCEPTOR_NOTHING_IS_INITIALIZED) 360 return internal_strlen(s); 361 void *ctx; 362 COMMON_INTERCEPTOR_ENTER(ctx, strlen, s); 363 SIZE_T result = REAL(strlen)(s); 364 if (common_flags()->intercept_strlen) 365 COMMON_INTERCEPTOR_READ_RANGE(ctx, s, result + 1); 366 return result; 367 } 368 #define INIT_STRLEN COMMON_INTERCEPT_FUNCTION(strlen) 369 #else 370 #define INIT_STRLEN 371 #endif 372 373 #if SANITIZER_INTERCEPT_STRNLEN 374 INTERCEPTOR(SIZE_T, strnlen, const char *s, SIZE_T maxlen) { 375 void *ctx; 376 COMMON_INTERCEPTOR_ENTER(ctx, strnlen, s, maxlen); 377 SIZE_T length = REAL(strnlen)(s, maxlen); 378 if (common_flags()->intercept_strlen) 379 COMMON_INTERCEPTOR_READ_RANGE(ctx, s, Min(length + 1, maxlen)); 380 return length; 381 } 382 #define INIT_STRNLEN COMMON_INTERCEPT_FUNCTION(strnlen) 383 #else 384 #define INIT_STRNLEN 385 #endif 386 387 #if SANITIZER_INTERCEPT_STRNDUP 388 INTERCEPTOR(char*, strndup, const char *s, uptr size) { 389 void *ctx; 390 COMMON_INTERCEPTOR_STRNDUP_IMPL(ctx, s, size); 391 } 392 #define INIT_STRNDUP COMMON_INTERCEPT_FUNCTION(strndup) 393 #else 394 #define INIT_STRNDUP 395 #endif // SANITIZER_INTERCEPT_STRNDUP 396 397 #if SANITIZER_INTERCEPT___STRNDUP 398 INTERCEPTOR(char*, __strndup, const char *s, uptr size) { 399 void *ctx; 400 COMMON_INTERCEPTOR_STRNDUP_IMPL(ctx, s, size); 401 } 402 #define INIT___STRNDUP COMMON_INTERCEPT_FUNCTION(__strndup) 403 #else 404 #define INIT___STRNDUP 405 #endif // SANITIZER_INTERCEPT___STRNDUP 406 407 #if SANITIZER_INTERCEPT_TEXTDOMAIN 408 INTERCEPTOR(char*, textdomain, const char *domainname) { 409 void *ctx; 410 COMMON_INTERCEPTOR_ENTER(ctx, textdomain, domainname); 411 if (domainname) COMMON_INTERCEPTOR_READ_STRING(ctx, domainname, 0); 412 char *domain = REAL(textdomain)(domainname); 413 if (domain) { 414 COMMON_INTERCEPTOR_INITIALIZE_RANGE(domain, REAL(strlen)(domain) + 1); 415 } 416 return domain; 417 } 418 #define INIT_TEXTDOMAIN COMMON_INTERCEPT_FUNCTION(textdomain) 419 #else 420 #define INIT_TEXTDOMAIN 421 #endif 422 423 #if SANITIZER_INTERCEPT_STRCMP 424 static inline int CharCmpX(unsigned char c1, unsigned char c2) { 425 return (c1 == c2) ? 0 : (c1 < c2) ? -1 : 1; 426 } 427 428 DECLARE_WEAK_INTERCEPTOR_HOOK(__sanitizer_weak_hook_strcmp, uptr called_pc, 429 const char *s1, const char *s2, int result) 430 431 INTERCEPTOR(int, strcmp, const char *s1, const char *s2) { 432 void *ctx; 433 COMMON_INTERCEPTOR_ENTER(ctx, strcmp, s1, s2); 434 unsigned char c1, c2; 435 uptr i; 436 for (i = 0;; i++) { 437 c1 = (unsigned char)s1[i]; 438 c2 = (unsigned char)s2[i]; 439 if (c1 != c2 || c1 == '\0') break; 440 } 441 COMMON_INTERCEPTOR_READ_STRING(ctx, s1, i + 1); 442 COMMON_INTERCEPTOR_READ_STRING(ctx, s2, i + 1); 443 int result = CharCmpX(c1, c2); 444 CALL_WEAK_INTERCEPTOR_HOOK(__sanitizer_weak_hook_strcmp, GET_CALLER_PC(), s1, 445 s2, result); 446 return result; 447 } 448 449 DECLARE_WEAK_INTERCEPTOR_HOOK(__sanitizer_weak_hook_strncmp, uptr called_pc, 450 const char *s1, const char *s2, uptr n, 451 int result) 452 453 INTERCEPTOR(int, strncmp, const char *s1, const char *s2, uptr size) { 454 if (COMMON_INTERCEPTOR_NOTHING_IS_INITIALIZED) 455 return internal_strncmp(s1, s2, size); 456 void *ctx; 457 COMMON_INTERCEPTOR_ENTER(ctx, strncmp, s1, s2, size); 458 unsigned char c1 = 0, c2 = 0; 459 uptr i; 460 for (i = 0; i < size; i++) { 461 c1 = (unsigned char)s1[i]; 462 c2 = (unsigned char)s2[i]; 463 if (c1 != c2 || c1 == '\0') break; 464 } 465 uptr i1 = i; 466 uptr i2 = i; 467 if (common_flags()->strict_string_checks) { 468 for (; i1 < size && s1[i1]; i1++) {} 469 for (; i2 < size && s2[i2]; i2++) {} 470 } 471 COMMON_INTERCEPTOR_READ_RANGE((ctx), (s1), Min(i1 + 1, size)); 472 COMMON_INTERCEPTOR_READ_RANGE((ctx), (s2), Min(i2 + 1, size)); 473 int result = CharCmpX(c1, c2); 474 CALL_WEAK_INTERCEPTOR_HOOK(__sanitizer_weak_hook_strncmp, GET_CALLER_PC(), s1, 475 s2, size, result); 476 return result; 477 } 478 479 #define INIT_STRCMP COMMON_INTERCEPT_FUNCTION(strcmp) 480 #define INIT_STRNCMP COMMON_INTERCEPT_FUNCTION(strncmp) 481 #else 482 #define INIT_STRCMP 483 #define INIT_STRNCMP 484 #endif 485 486 #if SANITIZER_INTERCEPT_STRCASECMP 487 static inline int CharCaseCmp(unsigned char c1, unsigned char c2) { 488 int c1_low = ToLower(c1); 489 int c2_low = ToLower(c2); 490 return c1_low - c2_low; 491 } 492 493 DECLARE_WEAK_INTERCEPTOR_HOOK(__sanitizer_weak_hook_strcasecmp, uptr called_pc, 494 const char *s1, const char *s2, int result) 495 496 INTERCEPTOR(int, strcasecmp, const char *s1, const char *s2) { 497 void *ctx; 498 COMMON_INTERCEPTOR_ENTER(ctx, strcasecmp, s1, s2); 499 unsigned char c1 = 0, c2 = 0; 500 uptr i; 501 for (i = 0;; i++) { 502 c1 = (unsigned char)s1[i]; 503 c2 = (unsigned char)s2[i]; 504 if (CharCaseCmp(c1, c2) != 0 || c1 == '\0') break; 505 } 506 COMMON_INTERCEPTOR_READ_STRING(ctx, s1, i + 1); 507 COMMON_INTERCEPTOR_READ_STRING(ctx, s2, i + 1); 508 int result = CharCaseCmp(c1, c2); 509 CALL_WEAK_INTERCEPTOR_HOOK(__sanitizer_weak_hook_strcasecmp, GET_CALLER_PC(), 510 s1, s2, result); 511 return result; 512 } 513 514 DECLARE_WEAK_INTERCEPTOR_HOOK(__sanitizer_weak_hook_strncasecmp, uptr called_pc, 515 const char *s1, const char *s2, uptr size, 516 int result) 517 518 INTERCEPTOR(int, strncasecmp, const char *s1, const char *s2, SIZE_T size) { 519 void *ctx; 520 COMMON_INTERCEPTOR_ENTER(ctx, strncasecmp, s1, s2, size); 521 unsigned char c1 = 0, c2 = 0; 522 uptr i; 523 for (i = 0; i < size; i++) { 524 c1 = (unsigned char)s1[i]; 525 c2 = (unsigned char)s2[i]; 526 if (CharCaseCmp(c1, c2) != 0 || c1 == '\0') break; 527 } 528 uptr i1 = i; 529 uptr i2 = i; 530 if (common_flags()->strict_string_checks) { 531 for (; i1 < size && s1[i1]; i1++) {} 532 for (; i2 < size && s2[i2]; i2++) {} 533 } 534 COMMON_INTERCEPTOR_READ_RANGE((ctx), (s1), Min(i1 + 1, size)); 535 COMMON_INTERCEPTOR_READ_RANGE((ctx), (s2), Min(i2 + 1, size)); 536 int result = CharCaseCmp(c1, c2); 537 CALL_WEAK_INTERCEPTOR_HOOK(__sanitizer_weak_hook_strncasecmp, GET_CALLER_PC(), 538 s1, s2, size, result); 539 return result; 540 } 541 542 #define INIT_STRCASECMP COMMON_INTERCEPT_FUNCTION(strcasecmp) 543 #define INIT_STRNCASECMP COMMON_INTERCEPT_FUNCTION(strncasecmp) 544 #else 545 #define INIT_STRCASECMP 546 #define INIT_STRNCASECMP 547 #endif 548 549 #if SANITIZER_INTERCEPT_STRSTR || SANITIZER_INTERCEPT_STRCASESTR 550 static inline void StrstrCheck(void *ctx, char *r, const char *s1, 551 const char *s2) { 552 uptr len1 = REAL(strlen)(s1); 553 uptr len2 = REAL(strlen)(s2); 554 COMMON_INTERCEPTOR_READ_STRING(ctx, s1, r ? r - s1 + len2 : len1 + 1); 555 COMMON_INTERCEPTOR_READ_RANGE(ctx, s2, len2 + 1); 556 } 557 #endif 558 559 #if SANITIZER_INTERCEPT_STRSTR 560 561 DECLARE_WEAK_INTERCEPTOR_HOOK(__sanitizer_weak_hook_strstr, uptr called_pc, 562 const char *s1, const char *s2, char *result) 563 564 INTERCEPTOR(char*, strstr, const char *s1, const char *s2) { 565 if (COMMON_INTERCEPTOR_NOTHING_IS_INITIALIZED) 566 return internal_strstr(s1, s2); 567 void *ctx; 568 COMMON_INTERCEPTOR_ENTER(ctx, strstr, s1, s2); 569 char *r = REAL(strstr)(s1, s2); 570 if (common_flags()->intercept_strstr) 571 StrstrCheck(ctx, r, s1, s2); 572 CALL_WEAK_INTERCEPTOR_HOOK(__sanitizer_weak_hook_strstr, GET_CALLER_PC(), s1, 573 s2, r); 574 return r; 575 } 576 577 #define INIT_STRSTR COMMON_INTERCEPT_FUNCTION(strstr); 578 #else 579 #define INIT_STRSTR 580 #endif 581 582 #if SANITIZER_INTERCEPT_STRCASESTR 583 584 DECLARE_WEAK_INTERCEPTOR_HOOK(__sanitizer_weak_hook_strcasestr, uptr called_pc, 585 const char *s1, const char *s2, char *result) 586 587 INTERCEPTOR(char*, strcasestr, const char *s1, const char *s2) { 588 void *ctx; 589 COMMON_INTERCEPTOR_ENTER(ctx, strcasestr, s1, s2); 590 char *r = REAL(strcasestr)(s1, s2); 591 if (common_flags()->intercept_strstr) 592 StrstrCheck(ctx, r, s1, s2); 593 CALL_WEAK_INTERCEPTOR_HOOK(__sanitizer_weak_hook_strcasestr, GET_CALLER_PC(), 594 s1, s2, r); 595 return r; 596 } 597 598 #define INIT_STRCASESTR COMMON_INTERCEPT_FUNCTION(strcasestr); 599 #else 600 #define INIT_STRCASESTR 601 #endif 602 603 #if SANITIZER_INTERCEPT_STRTOK 604 605 INTERCEPTOR(char*, strtok, char *str, const char *delimiters) { 606 void *ctx; 607 COMMON_INTERCEPTOR_ENTER(ctx, strtok, str, delimiters); 608 if (!common_flags()->intercept_strtok) { 609 return REAL(strtok)(str, delimiters); 610 } 611 if (common_flags()->strict_string_checks) { 612 // If strict_string_checks is enabled, we check the whole first argument 613 // string on the first call (strtok saves this string in a static buffer 614 // for subsequent calls). We do not need to check strtok's result. 615 // As the delimiters can change, we check them every call. 616 if (str != nullptr) { 617 COMMON_INTERCEPTOR_READ_RANGE(ctx, str, REAL(strlen)(str) + 1); 618 } 619 COMMON_INTERCEPTOR_READ_RANGE(ctx, delimiters, 620 REAL(strlen)(delimiters) + 1); 621 return REAL(strtok)(str, delimiters); 622 } else { 623 // However, when strict_string_checks is disabled we cannot check the 624 // whole string on the first call. Instead, we check the result string 625 // which is guaranteed to be a NULL-terminated substring of the first 626 // argument. We also conservatively check one character of str and the 627 // delimiters. 628 if (str != nullptr) { 629 COMMON_INTERCEPTOR_READ_STRING(ctx, str, 1); 630 } 631 COMMON_INTERCEPTOR_READ_RANGE(ctx, delimiters, 1); 632 char *result = REAL(strtok)(str, delimiters); 633 if (result != nullptr) { 634 COMMON_INTERCEPTOR_READ_RANGE(ctx, result, REAL(strlen)(result) + 1); 635 } else if (str != nullptr) { 636 // No delimiter were found, it's safe to assume that the entire str was 637 // scanned. 638 COMMON_INTERCEPTOR_READ_RANGE(ctx, str, REAL(strlen)(str) + 1); 639 } 640 return result; 641 } 642 } 643 644 #define INIT_STRTOK COMMON_INTERCEPT_FUNCTION(strtok) 645 #else 646 #define INIT_STRTOK 647 #endif 648 649 #if SANITIZER_INTERCEPT_MEMMEM 650 DECLARE_WEAK_INTERCEPTOR_HOOK(__sanitizer_weak_hook_memmem, uptr called_pc, 651 const void *s1, SIZE_T len1, const void *s2, 652 SIZE_T len2, void *result) 653 654 INTERCEPTOR(void*, memmem, const void *s1, SIZE_T len1, const void *s2, 655 SIZE_T len2) { 656 void *ctx; 657 COMMON_INTERCEPTOR_ENTER(ctx, memmem, s1, len1, s2, len2); 658 void *r = REAL(memmem)(s1, len1, s2, len2); 659 if (common_flags()->intercept_memmem) { 660 COMMON_INTERCEPTOR_READ_RANGE(ctx, s1, len1); 661 COMMON_INTERCEPTOR_READ_RANGE(ctx, s2, len2); 662 } 663 CALL_WEAK_INTERCEPTOR_HOOK(__sanitizer_weak_hook_memmem, GET_CALLER_PC(), 664 s1, len1, s2, len2, r); 665 return r; 666 } 667 668 #define INIT_MEMMEM COMMON_INTERCEPT_FUNCTION(memmem); 669 #else 670 #define INIT_MEMMEM 671 #endif // SANITIZER_INTERCEPT_MEMMEM 672 673 #if SANITIZER_INTERCEPT_STRCHR 674 INTERCEPTOR(char*, strchr, const char *s, int c) { 675 void *ctx; 676 if (COMMON_INTERCEPTOR_NOTHING_IS_INITIALIZED) 677 return internal_strchr(s, c); 678 COMMON_INTERCEPTOR_ENTER(ctx, strchr, s, c); 679 char *result = REAL(strchr)(s, c); 680 if (common_flags()->intercept_strchr) { 681 // Keep strlen as macro argument, as macro may ignore it. 682 COMMON_INTERCEPTOR_READ_STRING(ctx, s, 683 (result ? result - s : REAL(strlen)(s)) + 1); 684 } 685 return result; 686 } 687 #define INIT_STRCHR COMMON_INTERCEPT_FUNCTION(strchr) 688 #else 689 #define INIT_STRCHR 690 #endif 691 692 #if SANITIZER_INTERCEPT_STRCHRNUL 693 INTERCEPTOR(char*, strchrnul, const char *s, int c) { 694 void *ctx; 695 COMMON_INTERCEPTOR_ENTER(ctx, strchrnul, s, c); 696 char *result = REAL(strchrnul)(s, c); 697 uptr len = result - s + 1; 698 if (common_flags()->intercept_strchr) 699 COMMON_INTERCEPTOR_READ_STRING(ctx, s, len); 700 return result; 701 } 702 #define INIT_STRCHRNUL COMMON_INTERCEPT_FUNCTION(strchrnul) 703 #else 704 #define INIT_STRCHRNUL 705 #endif 706 707 #if SANITIZER_INTERCEPT_STRRCHR 708 INTERCEPTOR(char*, strrchr, const char *s, int c) { 709 void *ctx; 710 if (COMMON_INTERCEPTOR_NOTHING_IS_INITIALIZED) 711 return internal_strrchr(s, c); 712 COMMON_INTERCEPTOR_ENTER(ctx, strrchr, s, c); 713 if (common_flags()->intercept_strchr) 714 COMMON_INTERCEPTOR_READ_RANGE(ctx, s, REAL(strlen)(s) + 1); 715 return REAL(strrchr)(s, c); 716 } 717 #define INIT_STRRCHR COMMON_INTERCEPT_FUNCTION(strrchr) 718 #else 719 #define INIT_STRRCHR 720 #endif 721 722 #if SANITIZER_INTERCEPT_STRSPN 723 INTERCEPTOR(SIZE_T, strspn, const char *s1, const char *s2) { 724 void *ctx; 725 COMMON_INTERCEPTOR_ENTER(ctx, strspn, s1, s2); 726 SIZE_T r = REAL(strspn)(s1, s2); 727 if (common_flags()->intercept_strspn) { 728 COMMON_INTERCEPTOR_READ_RANGE(ctx, s2, REAL(strlen)(s2) + 1); 729 COMMON_INTERCEPTOR_READ_STRING(ctx, s1, r + 1); 730 } 731 return r; 732 } 733 734 INTERCEPTOR(SIZE_T, strcspn, const char *s1, const char *s2) { 735 void *ctx; 736 COMMON_INTERCEPTOR_ENTER(ctx, strcspn, s1, s2); 737 SIZE_T r = REAL(strcspn)(s1, s2); 738 if (common_flags()->intercept_strspn) { 739 COMMON_INTERCEPTOR_READ_RANGE(ctx, s2, REAL(strlen)(s2) + 1); 740 COMMON_INTERCEPTOR_READ_STRING(ctx, s1, r + 1); 741 } 742 return r; 743 } 744 745 #define INIT_STRSPN \ 746 COMMON_INTERCEPT_FUNCTION(strspn); \ 747 COMMON_INTERCEPT_FUNCTION(strcspn); 748 #else 749 #define INIT_STRSPN 750 #endif 751 752 #if SANITIZER_INTERCEPT_STRPBRK 753 INTERCEPTOR(char *, strpbrk, const char *s1, const char *s2) { 754 void *ctx; 755 COMMON_INTERCEPTOR_ENTER(ctx, strpbrk, s1, s2); 756 char *r = REAL(strpbrk)(s1, s2); 757 if (common_flags()->intercept_strpbrk) { 758 COMMON_INTERCEPTOR_READ_RANGE(ctx, s2, REAL(strlen)(s2) + 1); 759 COMMON_INTERCEPTOR_READ_STRING(ctx, s1, 760 r ? r - s1 + 1 : REAL(strlen)(s1) + 1); 761 } 762 return r; 763 } 764 765 #define INIT_STRPBRK COMMON_INTERCEPT_FUNCTION(strpbrk); 766 #else 767 #define INIT_STRPBRK 768 #endif 769 770 #if SANITIZER_INTERCEPT_MEMSET 771 INTERCEPTOR(void *, memset, void *dst, int v, uptr size) { 772 void *ctx; 773 COMMON_INTERCEPTOR_MEMSET_IMPL(ctx, dst, v, size); 774 } 775 776 #define INIT_MEMSET COMMON_INTERCEPT_FUNCTION(memset) 777 #else 778 #define INIT_MEMSET 779 #endif 780 781 #if SANITIZER_INTERCEPT_MEMMOVE 782 INTERCEPTOR(void *, memmove, void *dst, const void *src, uptr size) { 783 void *ctx; 784 COMMON_INTERCEPTOR_MEMMOVE_IMPL(ctx, dst, src, size); 785 } 786 787 #define INIT_MEMMOVE COMMON_INTERCEPT_FUNCTION(memmove) 788 #else 789 #define INIT_MEMMOVE 790 #endif 791 792 #if SANITIZER_INTERCEPT_MEMCPY 793 INTERCEPTOR(void *, memcpy, void *dst, const void *src, uptr size) { 794 // On OS X, calling internal_memcpy here will cause memory corruptions, 795 // because memcpy and memmove are actually aliases of the same 796 // implementation. We need to use internal_memmove here. 797 // N.B.: If we switch this to internal_ we'll have to use internal_memmove 798 // due to memcpy being an alias of memmove on OS X. 799 void *ctx; 800 if (PLATFORM_HAS_DIFFERENT_MEMCPY_AND_MEMMOVE) { 801 COMMON_INTERCEPTOR_MEMCPY_IMPL(ctx, dst, src, size); 802 } else { 803 COMMON_INTERCEPTOR_MEMMOVE_IMPL(ctx, dst, src, size); 804 } 805 } 806 807 #define INIT_MEMCPY \ 808 do { \ 809 if (PLATFORM_HAS_DIFFERENT_MEMCPY_AND_MEMMOVE) { \ 810 COMMON_INTERCEPT_FUNCTION(memcpy); \ 811 } else { \ 812 ASSIGN_REAL(memcpy, memmove); \ 813 } \ 814 CHECK(REAL(memcpy)); \ 815 } while (false) 816 817 #else 818 #define INIT_MEMCPY 819 #endif 820 821 #if SANITIZER_INTERCEPT_MEMCMP 822 823 DECLARE_WEAK_INTERCEPTOR_HOOK(__sanitizer_weak_hook_memcmp, uptr called_pc, 824 const void *s1, const void *s2, uptr n, 825 int result) 826 827 INTERCEPTOR(int, memcmp, const void *a1, const void *a2, uptr size) { 828 if (COMMON_INTERCEPTOR_NOTHING_IS_INITIALIZED) 829 return internal_memcmp(a1, a2, size); 830 void *ctx; 831 COMMON_INTERCEPTOR_ENTER(ctx, memcmp, a1, a2, size); 832 if (common_flags()->intercept_memcmp) { 833 if (common_flags()->strict_memcmp) { 834 // Check the entire regions even if the first bytes of the buffers are 835 // different. 836 COMMON_INTERCEPTOR_READ_RANGE(ctx, a1, size); 837 COMMON_INTERCEPTOR_READ_RANGE(ctx, a2, size); 838 // Fallthrough to REAL(memcmp) below. 839 } else { 840 unsigned char c1 = 0, c2 = 0; 841 const unsigned char *s1 = (const unsigned char*)a1; 842 const unsigned char *s2 = (const unsigned char*)a2; 843 uptr i; 844 for (i = 0; i < size; i++) { 845 c1 = s1[i]; 846 c2 = s2[i]; 847 if (c1 != c2) break; 848 } 849 COMMON_INTERCEPTOR_READ_RANGE(ctx, s1, Min(i + 1, size)); 850 COMMON_INTERCEPTOR_READ_RANGE(ctx, s2, Min(i + 1, size)); 851 int r = CharCmpX(c1, c2); 852 CALL_WEAK_INTERCEPTOR_HOOK(__sanitizer_weak_hook_memcmp, GET_CALLER_PC(), 853 a1, a2, size, r); 854 return r; 855 } 856 } 857 int result = REAL(memcmp(a1, a2, size)); 858 CALL_WEAK_INTERCEPTOR_HOOK(__sanitizer_weak_hook_memcmp, GET_CALLER_PC(), a1, 859 a2, size, result); 860 return result; 861 } 862 863 #define INIT_MEMCMP COMMON_INTERCEPT_FUNCTION(memcmp) 864 #else 865 #define INIT_MEMCMP 866 #endif 867 868 #if SANITIZER_INTERCEPT_MEMCHR 869 INTERCEPTOR(void*, memchr, const void *s, int c, SIZE_T n) { 870 if (COMMON_INTERCEPTOR_NOTHING_IS_INITIALIZED) 871 return internal_memchr(s, c, n); 872 void *ctx; 873 COMMON_INTERCEPTOR_ENTER(ctx, memchr, s, c, n); 874 #if SANITIZER_WINDOWS 875 void *res; 876 if (REAL(memchr)) { 877 res = REAL(memchr)(s, c, n); 878 } else { 879 res = internal_memchr(s, c, n); 880 } 881 #else 882 void *res = REAL(memchr)(s, c, n); 883 #endif 884 uptr len = res ? (char *)res - (const char *)s + 1 : n; 885 COMMON_INTERCEPTOR_READ_RANGE(ctx, s, len); 886 return res; 887 } 888 889 #define INIT_MEMCHR COMMON_INTERCEPT_FUNCTION(memchr) 890 #else 891 #define INIT_MEMCHR 892 #endif 893 894 #if SANITIZER_INTERCEPT_MEMRCHR 895 INTERCEPTOR(void*, memrchr, const void *s, int c, SIZE_T n) { 896 void *ctx; 897 COMMON_INTERCEPTOR_ENTER(ctx, memrchr, s, c, n); 898 COMMON_INTERCEPTOR_READ_RANGE(ctx, s, n); 899 return REAL(memrchr)(s, c, n); 900 } 901 902 #define INIT_MEMRCHR COMMON_INTERCEPT_FUNCTION(memrchr) 903 #else 904 #define INIT_MEMRCHR 905 #endif 906 907 #if SANITIZER_INTERCEPT_FREXP 908 INTERCEPTOR(double, frexp, double x, int *exp) { 909 void *ctx; 910 COMMON_INTERCEPTOR_ENTER(ctx, frexp, x, exp); 911 // Assuming frexp() always writes to |exp|. 912 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, exp, sizeof(*exp)); 913 double res = REAL(frexp)(x, exp); 914 return res; 915 } 916 917 #define INIT_FREXP COMMON_INTERCEPT_FUNCTION(frexp); 918 #else 919 #define INIT_FREXP 920 #endif // SANITIZER_INTERCEPT_FREXP 921 922 #if SANITIZER_INTERCEPT_FREXPF_FREXPL 923 INTERCEPTOR(float, frexpf, float x, int *exp) { 924 void *ctx; 925 COMMON_INTERCEPTOR_ENTER(ctx, frexpf, x, exp); 926 // FIXME: under ASan the call below may write to freed memory and corrupt 927 // its metadata. See 928 // https://github.com/google/sanitizers/issues/321. 929 float res = REAL(frexpf)(x, exp); 930 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, exp, sizeof(*exp)); 931 return res; 932 } 933 934 INTERCEPTOR(long double, frexpl, long double x, int *exp) { 935 void *ctx; 936 COMMON_INTERCEPTOR_ENTER(ctx, frexpl, x, exp); 937 // FIXME: under ASan the call below may write to freed memory and corrupt 938 // its metadata. See 939 // https://github.com/google/sanitizers/issues/321. 940 long double res = REAL(frexpl)(x, exp); 941 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, exp, sizeof(*exp)); 942 return res; 943 } 944 945 #define INIT_FREXPF_FREXPL \ 946 COMMON_INTERCEPT_FUNCTION(frexpf); \ 947 COMMON_INTERCEPT_FUNCTION_LDBL(frexpl) 948 #else 949 #define INIT_FREXPF_FREXPL 950 #endif // SANITIZER_INTERCEPT_FREXPF_FREXPL 951 952 #if SI_POSIX 953 static void write_iovec(void *ctx, struct __sanitizer_iovec *iovec, 954 SIZE_T iovlen, SIZE_T maxlen) { 955 for (SIZE_T i = 0; i < iovlen && maxlen; ++i) { 956 SSIZE_T sz = Min(iovec[i].iov_len, maxlen); 957 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, iovec[i].iov_base, sz); 958 maxlen -= sz; 959 } 960 } 961 962 static void read_iovec(void *ctx, struct __sanitizer_iovec *iovec, 963 SIZE_T iovlen, SIZE_T maxlen) { 964 COMMON_INTERCEPTOR_READ_RANGE(ctx, iovec, sizeof(*iovec) * iovlen); 965 for (SIZE_T i = 0; i < iovlen && maxlen; ++i) { 966 SSIZE_T sz = Min(iovec[i].iov_len, maxlen); 967 COMMON_INTERCEPTOR_READ_RANGE(ctx, iovec[i].iov_base, sz); 968 maxlen -= sz; 969 } 970 } 971 #endif 972 973 #if SANITIZER_INTERCEPT_READ 974 INTERCEPTOR(SSIZE_T, read, int fd, void *ptr, SIZE_T count) { 975 void *ctx; 976 COMMON_INTERCEPTOR_ENTER(ctx, read, fd, ptr, count); 977 COMMON_INTERCEPTOR_FD_ACCESS(ctx, fd); 978 // FIXME: under ASan the call below may write to freed memory and corrupt 979 // its metadata. See 980 // https://github.com/google/sanitizers/issues/321. 981 SSIZE_T res = REAL(read)(fd, ptr, count); 982 if (res > 0) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, ptr, res); 983 if (res >= 0 && fd >= 0) COMMON_INTERCEPTOR_FD_ACQUIRE(ctx, fd); 984 return res; 985 } 986 #define INIT_READ COMMON_INTERCEPT_FUNCTION(read) 987 #else 988 #define INIT_READ 989 #endif 990 991 #if SANITIZER_INTERCEPT_FREAD 992 INTERCEPTOR(SIZE_T, fread, void *ptr, SIZE_T size, SIZE_T nmemb, void *file) { 993 // libc file streams can call user-supplied functions, see fopencookie. 994 void *ctx; 995 COMMON_INTERCEPTOR_ENTER(ctx, fread, ptr, size, nmemb, file); 996 // FIXME: under ASan the call below may write to freed memory and corrupt 997 // its metadata. See 998 // https://github.com/google/sanitizers/issues/321. 999 SIZE_T res = REAL(fread)(ptr, size, nmemb, file); 1000 if (res > 0) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, ptr, res * size); 1001 return res; 1002 } 1003 #define INIT_FREAD COMMON_INTERCEPT_FUNCTION(fread) 1004 #else 1005 #define INIT_FREAD 1006 #endif 1007 1008 #if SANITIZER_INTERCEPT_PREAD 1009 INTERCEPTOR(SSIZE_T, pread, int fd, void *ptr, SIZE_T count, OFF_T offset) { 1010 void *ctx; 1011 COMMON_INTERCEPTOR_ENTER(ctx, pread, fd, ptr, count, offset); 1012 COMMON_INTERCEPTOR_FD_ACCESS(ctx, fd); 1013 // FIXME: under ASan the call below may write to freed memory and corrupt 1014 // its metadata. See 1015 // https://github.com/google/sanitizers/issues/321. 1016 SSIZE_T res = REAL(pread)(fd, ptr, count, offset); 1017 if (res > 0) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, ptr, res); 1018 if (res >= 0 && fd >= 0) COMMON_INTERCEPTOR_FD_ACQUIRE(ctx, fd); 1019 return res; 1020 } 1021 #define INIT_PREAD COMMON_INTERCEPT_FUNCTION(pread) 1022 #else 1023 #define INIT_PREAD 1024 #endif 1025 1026 #if SANITIZER_INTERCEPT_PREAD64 1027 INTERCEPTOR(SSIZE_T, pread64, int fd, void *ptr, SIZE_T count, OFF64_T offset) { 1028 void *ctx; 1029 COMMON_INTERCEPTOR_ENTER(ctx, pread64, fd, ptr, count, offset); 1030 COMMON_INTERCEPTOR_FD_ACCESS(ctx, fd); 1031 // FIXME: under ASan the call below may write to freed memory and corrupt 1032 // its metadata. See 1033 // https://github.com/google/sanitizers/issues/321. 1034 SSIZE_T res = REAL(pread64)(fd, ptr, count, offset); 1035 if (res > 0) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, ptr, res); 1036 if (res >= 0 && fd >= 0) COMMON_INTERCEPTOR_FD_ACQUIRE(ctx, fd); 1037 return res; 1038 } 1039 #define INIT_PREAD64 COMMON_INTERCEPT_FUNCTION(pread64) 1040 #else 1041 #define INIT_PREAD64 1042 #endif 1043 1044 #if SANITIZER_INTERCEPT_READV 1045 INTERCEPTOR_WITH_SUFFIX(SSIZE_T, readv, int fd, __sanitizer_iovec *iov, 1046 int iovcnt) { 1047 void *ctx; 1048 COMMON_INTERCEPTOR_ENTER(ctx, readv, fd, iov, iovcnt); 1049 COMMON_INTERCEPTOR_FD_ACCESS(ctx, fd); 1050 SSIZE_T res = REAL(readv)(fd, iov, iovcnt); 1051 if (res > 0) write_iovec(ctx, iov, iovcnt, res); 1052 if (res >= 0 && fd >= 0) COMMON_INTERCEPTOR_FD_ACQUIRE(ctx, fd); 1053 return res; 1054 } 1055 #define INIT_READV COMMON_INTERCEPT_FUNCTION(readv) 1056 #else 1057 #define INIT_READV 1058 #endif 1059 1060 #if SANITIZER_INTERCEPT_PREADV 1061 INTERCEPTOR(SSIZE_T, preadv, int fd, __sanitizer_iovec *iov, int iovcnt, 1062 OFF_T offset) { 1063 void *ctx; 1064 COMMON_INTERCEPTOR_ENTER(ctx, preadv, fd, iov, iovcnt, offset); 1065 COMMON_INTERCEPTOR_FD_ACCESS(ctx, fd); 1066 SSIZE_T res = REAL(preadv)(fd, iov, iovcnt, offset); 1067 if (res > 0) write_iovec(ctx, iov, iovcnt, res); 1068 if (res >= 0 && fd >= 0) COMMON_INTERCEPTOR_FD_ACQUIRE(ctx, fd); 1069 return res; 1070 } 1071 #define INIT_PREADV COMMON_INTERCEPT_FUNCTION(preadv) 1072 #else 1073 #define INIT_PREADV 1074 #endif 1075 1076 #if SANITIZER_INTERCEPT_PREADV64 1077 INTERCEPTOR(SSIZE_T, preadv64, int fd, __sanitizer_iovec *iov, int iovcnt, 1078 OFF64_T offset) { 1079 void *ctx; 1080 COMMON_INTERCEPTOR_ENTER(ctx, preadv64, fd, iov, iovcnt, offset); 1081 COMMON_INTERCEPTOR_FD_ACCESS(ctx, fd); 1082 SSIZE_T res = REAL(preadv64)(fd, iov, iovcnt, offset); 1083 if (res > 0) write_iovec(ctx, iov, iovcnt, res); 1084 if (res >= 0 && fd >= 0) COMMON_INTERCEPTOR_FD_ACQUIRE(ctx, fd); 1085 return res; 1086 } 1087 #define INIT_PREADV64 COMMON_INTERCEPT_FUNCTION(preadv64) 1088 #else 1089 #define INIT_PREADV64 1090 #endif 1091 1092 #if SANITIZER_INTERCEPT_WRITE 1093 INTERCEPTOR(SSIZE_T, write, int fd, void *ptr, SIZE_T count) { 1094 void *ctx; 1095 COMMON_INTERCEPTOR_ENTER(ctx, write, fd, ptr, count); 1096 COMMON_INTERCEPTOR_FD_ACCESS(ctx, fd); 1097 if (fd >= 0) COMMON_INTERCEPTOR_FD_RELEASE(ctx, fd); 1098 SSIZE_T res = REAL(write)(fd, ptr, count); 1099 // FIXME: this check should be _before_ the call to REAL(write), not after 1100 if (res > 0) COMMON_INTERCEPTOR_READ_RANGE(ctx, ptr, res); 1101 return res; 1102 } 1103 #define INIT_WRITE COMMON_INTERCEPT_FUNCTION(write) 1104 #else 1105 #define INIT_WRITE 1106 #endif 1107 1108 #if SANITIZER_INTERCEPT_FWRITE 1109 INTERCEPTOR(SIZE_T, fwrite, const void *p, uptr size, uptr nmemb, void *file) { 1110 // libc file streams can call user-supplied functions, see fopencookie. 1111 void *ctx; 1112 COMMON_INTERCEPTOR_ENTER(ctx, fwrite, p, size, nmemb, file); 1113 SIZE_T res = REAL(fwrite)(p, size, nmemb, file); 1114 if (res > 0) COMMON_INTERCEPTOR_READ_RANGE(ctx, p, res * size); 1115 return res; 1116 } 1117 #define INIT_FWRITE COMMON_INTERCEPT_FUNCTION(fwrite) 1118 #else 1119 #define INIT_FWRITE 1120 #endif 1121 1122 #if SANITIZER_INTERCEPT_PWRITE 1123 INTERCEPTOR(SSIZE_T, pwrite, int fd, void *ptr, SIZE_T count, OFF_T offset) { 1124 void *ctx; 1125 COMMON_INTERCEPTOR_ENTER(ctx, pwrite, fd, ptr, count, offset); 1126 COMMON_INTERCEPTOR_FD_ACCESS(ctx, fd); 1127 if (fd >= 0) COMMON_INTERCEPTOR_FD_RELEASE(ctx, fd); 1128 SSIZE_T res = REAL(pwrite)(fd, ptr, count, offset); 1129 if (res > 0) COMMON_INTERCEPTOR_READ_RANGE(ctx, ptr, res); 1130 return res; 1131 } 1132 #define INIT_PWRITE COMMON_INTERCEPT_FUNCTION(pwrite) 1133 #else 1134 #define INIT_PWRITE 1135 #endif 1136 1137 #if SANITIZER_INTERCEPT_PWRITE64 1138 INTERCEPTOR(SSIZE_T, pwrite64, int fd, void *ptr, OFF64_T count, 1139 OFF64_T offset) { 1140 void *ctx; 1141 COMMON_INTERCEPTOR_ENTER(ctx, pwrite64, fd, ptr, count, offset); 1142 COMMON_INTERCEPTOR_FD_ACCESS(ctx, fd); 1143 if (fd >= 0) COMMON_INTERCEPTOR_FD_RELEASE(ctx, fd); 1144 SSIZE_T res = REAL(pwrite64)(fd, ptr, count, offset); 1145 if (res > 0) COMMON_INTERCEPTOR_READ_RANGE(ctx, ptr, res); 1146 return res; 1147 } 1148 #define INIT_PWRITE64 COMMON_INTERCEPT_FUNCTION(pwrite64) 1149 #else 1150 #define INIT_PWRITE64 1151 #endif 1152 1153 #if SANITIZER_INTERCEPT_WRITEV 1154 INTERCEPTOR_WITH_SUFFIX(SSIZE_T, writev, int fd, __sanitizer_iovec *iov, 1155 int iovcnt) { 1156 void *ctx; 1157 COMMON_INTERCEPTOR_ENTER(ctx, writev, fd, iov, iovcnt); 1158 COMMON_INTERCEPTOR_FD_ACCESS(ctx, fd); 1159 if (fd >= 0) COMMON_INTERCEPTOR_FD_RELEASE(ctx, fd); 1160 SSIZE_T res = REAL(writev)(fd, iov, iovcnt); 1161 if (res > 0) read_iovec(ctx, iov, iovcnt, res); 1162 return res; 1163 } 1164 #define INIT_WRITEV COMMON_INTERCEPT_FUNCTION(writev) 1165 #else 1166 #define INIT_WRITEV 1167 #endif 1168 1169 #if SANITIZER_INTERCEPT_PWRITEV 1170 INTERCEPTOR(SSIZE_T, pwritev, int fd, __sanitizer_iovec *iov, int iovcnt, 1171 OFF_T offset) { 1172 void *ctx; 1173 COMMON_INTERCEPTOR_ENTER(ctx, pwritev, fd, iov, iovcnt, offset); 1174 COMMON_INTERCEPTOR_FD_ACCESS(ctx, fd); 1175 if (fd >= 0) COMMON_INTERCEPTOR_FD_RELEASE(ctx, fd); 1176 SSIZE_T res = REAL(pwritev)(fd, iov, iovcnt, offset); 1177 if (res > 0) read_iovec(ctx, iov, iovcnt, res); 1178 return res; 1179 } 1180 #define INIT_PWRITEV COMMON_INTERCEPT_FUNCTION(pwritev) 1181 #else 1182 #define INIT_PWRITEV 1183 #endif 1184 1185 #if SANITIZER_INTERCEPT_PWRITEV64 1186 INTERCEPTOR(SSIZE_T, pwritev64, int fd, __sanitizer_iovec *iov, int iovcnt, 1187 OFF64_T offset) { 1188 void *ctx; 1189 COMMON_INTERCEPTOR_ENTER(ctx, pwritev64, fd, iov, iovcnt, offset); 1190 COMMON_INTERCEPTOR_FD_ACCESS(ctx, fd); 1191 if (fd >= 0) COMMON_INTERCEPTOR_FD_RELEASE(ctx, fd); 1192 SSIZE_T res = REAL(pwritev64)(fd, iov, iovcnt, offset); 1193 if (res > 0) read_iovec(ctx, iov, iovcnt, res); 1194 return res; 1195 } 1196 #define INIT_PWRITEV64 COMMON_INTERCEPT_FUNCTION(pwritev64) 1197 #else 1198 #define INIT_PWRITEV64 1199 #endif 1200 1201 #if SANITIZER_INTERCEPT_FGETS 1202 INTERCEPTOR(char *, fgets, char *s, SIZE_T size, void *file) { 1203 // libc file streams can call user-supplied functions, see fopencookie. 1204 void *ctx; 1205 COMMON_INTERCEPTOR_ENTER(ctx, fgets, s, size, file); 1206 // FIXME: under ASan the call below may write to freed memory and corrupt 1207 // its metadata. See 1208 // https://github.com/google/sanitizers/issues/321. 1209 char *res = REAL(fgets)(s, size, file); 1210 if (res) 1211 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, s, REAL(strlen)(s) + 1); 1212 return res; 1213 } 1214 #define INIT_FGETS COMMON_INTERCEPT_FUNCTION(fgets) 1215 #else 1216 #define INIT_FGETS 1217 #endif 1218 1219 #if SANITIZER_INTERCEPT_FPUTS 1220 INTERCEPTOR_WITH_SUFFIX(int, fputs, char *s, void *file) { 1221 // libc file streams can call user-supplied functions, see fopencookie. 1222 void *ctx; 1223 COMMON_INTERCEPTOR_ENTER(ctx, fputs, s, file); 1224 COMMON_INTERCEPTOR_READ_RANGE(ctx, s, REAL(strlen)(s) + 1); 1225 return REAL(fputs)(s, file); 1226 } 1227 #define INIT_FPUTS COMMON_INTERCEPT_FUNCTION(fputs) 1228 #else 1229 #define INIT_FPUTS 1230 #endif 1231 1232 #if SANITIZER_INTERCEPT_PUTS 1233 INTERCEPTOR(int, puts, char *s) { 1234 // libc file streams can call user-supplied functions, see fopencookie. 1235 void *ctx; 1236 COMMON_INTERCEPTOR_ENTER(ctx, puts, s); 1237 COMMON_INTERCEPTOR_READ_RANGE(ctx, s, REAL(strlen)(s) + 1); 1238 return REAL(puts)(s); 1239 } 1240 #define INIT_PUTS COMMON_INTERCEPT_FUNCTION(puts) 1241 #else 1242 #define INIT_PUTS 1243 #endif 1244 1245 #if SANITIZER_INTERCEPT_PRCTL 1246 INTERCEPTOR(int, prctl, int option, unsigned long arg2, 1247 unsigned long arg3, // NOLINT 1248 unsigned long arg4, unsigned long arg5) { // NOLINT 1249 void *ctx; 1250 COMMON_INTERCEPTOR_ENTER(ctx, prctl, option, arg2, arg3, arg4, arg5); 1251 static const int PR_SET_NAME = 15; 1252 int res = REAL(prctl(option, arg2, arg3, arg4, arg5)); 1253 if (option == PR_SET_NAME) { 1254 char buff[16]; 1255 internal_strncpy(buff, (char *)arg2, 15); 1256 buff[15] = 0; 1257 COMMON_INTERCEPTOR_SET_THREAD_NAME(ctx, buff); 1258 } 1259 return res; 1260 } 1261 #define INIT_PRCTL COMMON_INTERCEPT_FUNCTION(prctl) 1262 #else 1263 #define INIT_PRCTL 1264 #endif // SANITIZER_INTERCEPT_PRCTL 1265 1266 #if SANITIZER_INTERCEPT_TIME 1267 INTERCEPTOR(unsigned long, time, unsigned long *t) { 1268 void *ctx; 1269 COMMON_INTERCEPTOR_ENTER(ctx, time, t); 1270 unsigned long local_t; 1271 unsigned long res = REAL(time)(&local_t); 1272 if (t && res != (unsigned long)-1) { 1273 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, t, sizeof(*t)); 1274 *t = local_t; 1275 } 1276 return res; 1277 } 1278 #define INIT_TIME COMMON_INTERCEPT_FUNCTION(time); 1279 #else 1280 #define INIT_TIME 1281 #endif // SANITIZER_INTERCEPT_TIME 1282 1283 #if SANITIZER_INTERCEPT_LOCALTIME_AND_FRIENDS 1284 static void unpoison_tm(void *ctx, __sanitizer_tm *tm) { 1285 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, tm, sizeof(*tm)); 1286 #if !SANITIZER_SOLARIS 1287 if (tm->tm_zone) { 1288 // Can not use COMMON_INTERCEPTOR_WRITE_RANGE here, because tm->tm_zone 1289 // can point to shared memory and tsan would report a data race. 1290 COMMON_INTERCEPTOR_INITIALIZE_RANGE(tm->tm_zone, 1291 REAL(strlen(tm->tm_zone)) + 1); 1292 } 1293 #endif 1294 } 1295 INTERCEPTOR(__sanitizer_tm *, localtime, unsigned long *timep) { 1296 void *ctx; 1297 COMMON_INTERCEPTOR_ENTER(ctx, localtime, timep); 1298 __sanitizer_tm *res = REAL(localtime)(timep); 1299 if (res) { 1300 COMMON_INTERCEPTOR_READ_RANGE(ctx, timep, sizeof(*timep)); 1301 unpoison_tm(ctx, res); 1302 } 1303 return res; 1304 } 1305 INTERCEPTOR(__sanitizer_tm *, localtime_r, unsigned long *timep, void *result) { 1306 void *ctx; 1307 COMMON_INTERCEPTOR_ENTER(ctx, localtime_r, timep, result); 1308 __sanitizer_tm *res = REAL(localtime_r)(timep, result); 1309 if (res) { 1310 COMMON_INTERCEPTOR_READ_RANGE(ctx, timep, sizeof(*timep)); 1311 unpoison_tm(ctx, res); 1312 } 1313 return res; 1314 } 1315 INTERCEPTOR(__sanitizer_tm *, gmtime, unsigned long *timep) { 1316 void *ctx; 1317 COMMON_INTERCEPTOR_ENTER(ctx, gmtime, timep); 1318 __sanitizer_tm *res = REAL(gmtime)(timep); 1319 if (res) { 1320 COMMON_INTERCEPTOR_READ_RANGE(ctx, timep, sizeof(*timep)); 1321 unpoison_tm(ctx, res); 1322 } 1323 return res; 1324 } 1325 INTERCEPTOR(__sanitizer_tm *, gmtime_r, unsigned long *timep, void *result) { 1326 void *ctx; 1327 COMMON_INTERCEPTOR_ENTER(ctx, gmtime_r, timep, result); 1328 __sanitizer_tm *res = REAL(gmtime_r)(timep, result); 1329 if (res) { 1330 COMMON_INTERCEPTOR_READ_RANGE(ctx, timep, sizeof(*timep)); 1331 unpoison_tm(ctx, res); 1332 } 1333 return res; 1334 } 1335 INTERCEPTOR(char *, ctime, unsigned long *timep) { 1336 void *ctx; 1337 COMMON_INTERCEPTOR_ENTER(ctx, ctime, timep); 1338 // FIXME: under ASan the call below may write to freed memory and corrupt 1339 // its metadata. See 1340 // https://github.com/google/sanitizers/issues/321. 1341 char *res = REAL(ctime)(timep); 1342 if (res) { 1343 COMMON_INTERCEPTOR_READ_RANGE(ctx, timep, sizeof(*timep)); 1344 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, res, REAL(strlen)(res) + 1); 1345 } 1346 return res; 1347 } 1348 INTERCEPTOR(char *, ctime_r, unsigned long *timep, char *result) { 1349 void *ctx; 1350 COMMON_INTERCEPTOR_ENTER(ctx, ctime_r, timep, result); 1351 // FIXME: under ASan the call below may write to freed memory and corrupt 1352 // its metadata. See 1353 // https://github.com/google/sanitizers/issues/321. 1354 char *res = REAL(ctime_r)(timep, result); 1355 if (res) { 1356 COMMON_INTERCEPTOR_READ_RANGE(ctx, timep, sizeof(*timep)); 1357 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, res, REAL(strlen)(res) + 1); 1358 } 1359 return res; 1360 } 1361 INTERCEPTOR(char *, asctime, __sanitizer_tm *tm) { 1362 void *ctx; 1363 COMMON_INTERCEPTOR_ENTER(ctx, asctime, tm); 1364 // FIXME: under ASan the call below may write to freed memory and corrupt 1365 // its metadata. See 1366 // https://github.com/google/sanitizers/issues/321. 1367 char *res = REAL(asctime)(tm); 1368 if (res) { 1369 COMMON_INTERCEPTOR_READ_RANGE(ctx, tm, sizeof(*tm)); 1370 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, res, REAL(strlen)(res) + 1); 1371 } 1372 return res; 1373 } 1374 INTERCEPTOR(char *, asctime_r, __sanitizer_tm *tm, char *result) { 1375 void *ctx; 1376 COMMON_INTERCEPTOR_ENTER(ctx, asctime_r, tm, result); 1377 // FIXME: under ASan the call below may write to freed memory and corrupt 1378 // its metadata. See 1379 // https://github.com/google/sanitizers/issues/321. 1380 char *res = REAL(asctime_r)(tm, result); 1381 if (res) { 1382 COMMON_INTERCEPTOR_READ_RANGE(ctx, tm, sizeof(*tm)); 1383 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, res, REAL(strlen)(res) + 1); 1384 } 1385 return res; 1386 } 1387 INTERCEPTOR(long, mktime, __sanitizer_tm *tm) { 1388 void *ctx; 1389 COMMON_INTERCEPTOR_ENTER(ctx, mktime, tm); 1390 COMMON_INTERCEPTOR_READ_RANGE(ctx, &tm->tm_sec, sizeof(tm->tm_sec)); 1391 COMMON_INTERCEPTOR_READ_RANGE(ctx, &tm->tm_min, sizeof(tm->tm_min)); 1392 COMMON_INTERCEPTOR_READ_RANGE(ctx, &tm->tm_hour, sizeof(tm->tm_hour)); 1393 COMMON_INTERCEPTOR_READ_RANGE(ctx, &tm->tm_mday, sizeof(tm->tm_mday)); 1394 COMMON_INTERCEPTOR_READ_RANGE(ctx, &tm->tm_mon, sizeof(tm->tm_mon)); 1395 COMMON_INTERCEPTOR_READ_RANGE(ctx, &tm->tm_year, sizeof(tm->tm_year)); 1396 COMMON_INTERCEPTOR_READ_RANGE(ctx, &tm->tm_isdst, sizeof(tm->tm_isdst)); 1397 long res = REAL(mktime)(tm); 1398 if (res != -1) unpoison_tm(ctx, tm); 1399 return res; 1400 } 1401 #define INIT_LOCALTIME_AND_FRIENDS \ 1402 COMMON_INTERCEPT_FUNCTION(localtime); \ 1403 COMMON_INTERCEPT_FUNCTION(localtime_r); \ 1404 COMMON_INTERCEPT_FUNCTION(gmtime); \ 1405 COMMON_INTERCEPT_FUNCTION(gmtime_r); \ 1406 COMMON_INTERCEPT_FUNCTION(ctime); \ 1407 COMMON_INTERCEPT_FUNCTION(ctime_r); \ 1408 COMMON_INTERCEPT_FUNCTION(asctime); \ 1409 COMMON_INTERCEPT_FUNCTION(asctime_r); \ 1410 COMMON_INTERCEPT_FUNCTION(mktime); 1411 #else 1412 #define INIT_LOCALTIME_AND_FRIENDS 1413 #endif // SANITIZER_INTERCEPT_LOCALTIME_AND_FRIENDS 1414 1415 #if SANITIZER_INTERCEPT_STRPTIME 1416 INTERCEPTOR(char *, strptime, char *s, char *format, __sanitizer_tm *tm) { 1417 void *ctx; 1418 COMMON_INTERCEPTOR_ENTER(ctx, strptime, s, format, tm); 1419 if (format) 1420 COMMON_INTERCEPTOR_READ_RANGE(ctx, format, REAL(strlen)(format) + 1); 1421 // FIXME: under ASan the call below may write to freed memory and corrupt 1422 // its metadata. See 1423 // https://github.com/google/sanitizers/issues/321. 1424 char *res = REAL(strptime)(s, format, tm); 1425 COMMON_INTERCEPTOR_READ_STRING(ctx, s, res ? res - s : 0); 1426 if (res && tm) { 1427 // Do not call unpoison_tm here, because strptime does not, in fact, 1428 // initialize the entire struct tm. For example, tm_zone pointer is left 1429 // uninitialized. 1430 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, tm, sizeof(*tm)); 1431 } 1432 return res; 1433 } 1434 #define INIT_STRPTIME COMMON_INTERCEPT_FUNCTION(strptime); 1435 #else 1436 #define INIT_STRPTIME 1437 #endif 1438 1439 #if SANITIZER_INTERCEPT_SCANF || SANITIZER_INTERCEPT_PRINTF 1440 #include "sanitizer_common_interceptors_format.inc" 1441 1442 #define FORMAT_INTERCEPTOR_IMPL(name, vname, ...) \ 1443 { \ 1444 void *ctx; \ 1445 va_list ap; \ 1446 va_start(ap, format); \ 1447 COMMON_INTERCEPTOR_ENTER(ctx, vname, __VA_ARGS__, ap); \ 1448 int res = WRAP(vname)(__VA_ARGS__, ap); \ 1449 va_end(ap); \ 1450 return res; \ 1451 } 1452 1453 #endif 1454 1455 #if SANITIZER_INTERCEPT_SCANF 1456 1457 #define VSCANF_INTERCEPTOR_IMPL(vname, allowGnuMalloc, ...) \ 1458 { \ 1459 void *ctx; \ 1460 COMMON_INTERCEPTOR_ENTER(ctx, vname, __VA_ARGS__); \ 1461 va_list aq; \ 1462 va_copy(aq, ap); \ 1463 int res = REAL(vname)(__VA_ARGS__); \ 1464 if (res > 0) \ 1465 scanf_common(ctx, res, allowGnuMalloc, format, aq); \ 1466 va_end(aq); \ 1467 return res; \ 1468 } 1469 1470 INTERCEPTOR(int, vscanf, const char *format, va_list ap) 1471 VSCANF_INTERCEPTOR_IMPL(vscanf, true, format, ap) 1472 1473 INTERCEPTOR(int, vsscanf, const char *str, const char *format, va_list ap) 1474 VSCANF_INTERCEPTOR_IMPL(vsscanf, true, str, format, ap) 1475 1476 INTERCEPTOR(int, vfscanf, void *stream, const char *format, va_list ap) 1477 VSCANF_INTERCEPTOR_IMPL(vfscanf, true, stream, format, ap) 1478 1479 #if SANITIZER_INTERCEPT_ISOC99_SCANF 1480 INTERCEPTOR(int, __isoc99_vscanf, const char *format, va_list ap) 1481 VSCANF_INTERCEPTOR_IMPL(__isoc99_vscanf, false, format, ap) 1482 1483 INTERCEPTOR(int, __isoc99_vsscanf, const char *str, const char *format, 1484 va_list ap) 1485 VSCANF_INTERCEPTOR_IMPL(__isoc99_vsscanf, false, str, format, ap) 1486 1487 INTERCEPTOR(int, __isoc99_vfscanf, void *stream, const char *format, va_list ap) 1488 VSCANF_INTERCEPTOR_IMPL(__isoc99_vfscanf, false, stream, format, ap) 1489 #endif // SANITIZER_INTERCEPT_ISOC99_SCANF 1490 1491 INTERCEPTOR(int, scanf, const char *format, ...) 1492 FORMAT_INTERCEPTOR_IMPL(scanf, vscanf, format) 1493 1494 INTERCEPTOR(int, fscanf, void *stream, const char *format, ...) 1495 FORMAT_INTERCEPTOR_IMPL(fscanf, vfscanf, stream, format) 1496 1497 INTERCEPTOR(int, sscanf, const char *str, const char *format, ...) 1498 FORMAT_INTERCEPTOR_IMPL(sscanf, vsscanf, str, format) 1499 1500 #if SANITIZER_INTERCEPT_ISOC99_SCANF 1501 INTERCEPTOR(int, __isoc99_scanf, const char *format, ...) 1502 FORMAT_INTERCEPTOR_IMPL(__isoc99_scanf, __isoc99_vscanf, format) 1503 1504 INTERCEPTOR(int, __isoc99_fscanf, void *stream, const char *format, ...) 1505 FORMAT_INTERCEPTOR_IMPL(__isoc99_fscanf, __isoc99_vfscanf, stream, format) 1506 1507 INTERCEPTOR(int, __isoc99_sscanf, const char *str, const char *format, ...) 1508 FORMAT_INTERCEPTOR_IMPL(__isoc99_sscanf, __isoc99_vsscanf, str, format) 1509 #endif 1510 1511 #endif 1512 1513 #if SANITIZER_INTERCEPT_SCANF 1514 #define INIT_SCANF \ 1515 COMMON_INTERCEPT_FUNCTION_LDBL(scanf); \ 1516 COMMON_INTERCEPT_FUNCTION_LDBL(sscanf); \ 1517 COMMON_INTERCEPT_FUNCTION_LDBL(fscanf); \ 1518 COMMON_INTERCEPT_FUNCTION_LDBL(vscanf); \ 1519 COMMON_INTERCEPT_FUNCTION_LDBL(vsscanf); \ 1520 COMMON_INTERCEPT_FUNCTION_LDBL(vfscanf); 1521 #else 1522 #define INIT_SCANF 1523 #endif 1524 1525 #if SANITIZER_INTERCEPT_ISOC99_SCANF 1526 #define INIT_ISOC99_SCANF \ 1527 COMMON_INTERCEPT_FUNCTION(__isoc99_scanf); \ 1528 COMMON_INTERCEPT_FUNCTION(__isoc99_sscanf); \ 1529 COMMON_INTERCEPT_FUNCTION(__isoc99_fscanf); \ 1530 COMMON_INTERCEPT_FUNCTION(__isoc99_vscanf); \ 1531 COMMON_INTERCEPT_FUNCTION(__isoc99_vsscanf); \ 1532 COMMON_INTERCEPT_FUNCTION(__isoc99_vfscanf); 1533 #else 1534 #define INIT_ISOC99_SCANF 1535 #endif 1536 1537 #if SANITIZER_INTERCEPT_PRINTF 1538 1539 #define VPRINTF_INTERCEPTOR_ENTER(vname, ...) \ 1540 void *ctx; \ 1541 COMMON_INTERCEPTOR_ENTER(ctx, vname, __VA_ARGS__); \ 1542 va_list aq; \ 1543 va_copy(aq, ap); 1544 1545 #define VPRINTF_INTERCEPTOR_RETURN() \ 1546 va_end(aq); 1547 1548 #define VPRINTF_INTERCEPTOR_IMPL(vname, ...) \ 1549 { \ 1550 VPRINTF_INTERCEPTOR_ENTER(vname, __VA_ARGS__); \ 1551 if (common_flags()->check_printf) \ 1552 printf_common(ctx, format, aq); \ 1553 int res = REAL(vname)(__VA_ARGS__); \ 1554 VPRINTF_INTERCEPTOR_RETURN(); \ 1555 return res; \ 1556 } 1557 1558 // FIXME: under ASan the REAL() call below may write to freed memory and 1559 // corrupt its metadata. See 1560 // https://github.com/google/sanitizers/issues/321. 1561 #define VSPRINTF_INTERCEPTOR_IMPL(vname, str, ...) \ 1562 { \ 1563 VPRINTF_INTERCEPTOR_ENTER(vname, str, __VA_ARGS__) \ 1564 if (common_flags()->check_printf) { \ 1565 printf_common(ctx, format, aq); \ 1566 } \ 1567 int res = REAL(vname)(str, __VA_ARGS__); \ 1568 if (res >= 0) { \ 1569 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, str, res + 1); \ 1570 } \ 1571 VPRINTF_INTERCEPTOR_RETURN(); \ 1572 return res; \ 1573 } 1574 1575 // FIXME: under ASan the REAL() call below may write to freed memory and 1576 // corrupt its metadata. See 1577 // https://github.com/google/sanitizers/issues/321. 1578 #define VSNPRINTF_INTERCEPTOR_IMPL(vname, str, size, ...) \ 1579 { \ 1580 VPRINTF_INTERCEPTOR_ENTER(vname, str, size, __VA_ARGS__) \ 1581 if (common_flags()->check_printf) { \ 1582 printf_common(ctx, format, aq); \ 1583 } \ 1584 int res = REAL(vname)(str, size, __VA_ARGS__); \ 1585 if (res >= 0) { \ 1586 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, str, Min(size, (SIZE_T)(res + 1))); \ 1587 } \ 1588 VPRINTF_INTERCEPTOR_RETURN(); \ 1589 return res; \ 1590 } 1591 1592 // FIXME: under ASan the REAL() call below may write to freed memory and 1593 // corrupt its metadata. See 1594 // https://github.com/google/sanitizers/issues/321. 1595 #define VASPRINTF_INTERCEPTOR_IMPL(vname, strp, ...) \ 1596 { \ 1597 VPRINTF_INTERCEPTOR_ENTER(vname, strp, __VA_ARGS__) \ 1598 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, strp, sizeof(char *)); \ 1599 if (common_flags()->check_printf) { \ 1600 printf_common(ctx, format, aq); \ 1601 } \ 1602 int res = REAL(vname)(strp, __VA_ARGS__); \ 1603 if (res >= 0) { \ 1604 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, *strp, res + 1); \ 1605 } \ 1606 VPRINTF_INTERCEPTOR_RETURN(); \ 1607 return res; \ 1608 } 1609 1610 INTERCEPTOR(int, vprintf, const char *format, va_list ap) 1611 VPRINTF_INTERCEPTOR_IMPL(vprintf, format, ap) 1612 1613 INTERCEPTOR(int, vfprintf, __sanitizer_FILE *stream, const char *format, 1614 va_list ap) 1615 VPRINTF_INTERCEPTOR_IMPL(vfprintf, stream, format, ap) 1616 1617 INTERCEPTOR(int, vsnprintf, char *str, SIZE_T size, const char *format, 1618 va_list ap) 1619 VSNPRINTF_INTERCEPTOR_IMPL(vsnprintf, str, size, format, ap) 1620 1621 #if SANITIZER_INTERCEPT___PRINTF_CHK 1622 INTERCEPTOR(int, __vsnprintf_chk, char *str, SIZE_T size, int flag, 1623 SIZE_T size_to, const char *format, va_list ap) 1624 VSNPRINTF_INTERCEPTOR_IMPL(vsnprintf, str, size, format, ap) 1625 #endif 1626 1627 #if SANITIZER_INTERCEPT_PRINTF_L 1628 INTERCEPTOR(int, vsnprintf_l, char *str, SIZE_T size, void *loc, 1629 const char *format, va_list ap) 1630 VSNPRINTF_INTERCEPTOR_IMPL(vsnprintf_l, str, size, loc, format, ap) 1631 1632 INTERCEPTOR(int, snprintf_l, char *str, SIZE_T size, void *loc, 1633 const char *format, ...) 1634 FORMAT_INTERCEPTOR_IMPL(snprintf_l, vsnprintf_l, str, size, loc, format) 1635 #endif // SANITIZER_INTERCEPT_PRINTF_L 1636 1637 INTERCEPTOR(int, vsprintf, char *str, const char *format, va_list ap) 1638 VSPRINTF_INTERCEPTOR_IMPL(vsprintf, str, format, ap) 1639 1640 #if SANITIZER_INTERCEPT___PRINTF_CHK 1641 INTERCEPTOR(int, __vsprintf_chk, char *str, int flag, SIZE_T size_to, 1642 const char *format, va_list ap) 1643 VSPRINTF_INTERCEPTOR_IMPL(vsprintf, str, format, ap) 1644 #endif 1645 1646 INTERCEPTOR(int, vasprintf, char **strp, const char *format, va_list ap) 1647 VASPRINTF_INTERCEPTOR_IMPL(vasprintf, strp, format, ap) 1648 1649 #if SANITIZER_INTERCEPT_ISOC99_PRINTF 1650 INTERCEPTOR(int, __isoc99_vprintf, const char *format, va_list ap) 1651 VPRINTF_INTERCEPTOR_IMPL(__isoc99_vprintf, format, ap) 1652 1653 INTERCEPTOR(int, __isoc99_vfprintf, __sanitizer_FILE *stream, 1654 const char *format, va_list ap) 1655 VPRINTF_INTERCEPTOR_IMPL(__isoc99_vfprintf, stream, format, ap) 1656 1657 INTERCEPTOR(int, __isoc99_vsnprintf, char *str, SIZE_T size, const char *format, 1658 va_list ap) 1659 VSNPRINTF_INTERCEPTOR_IMPL(__isoc99_vsnprintf, str, size, format, ap) 1660 1661 INTERCEPTOR(int, __isoc99_vsprintf, char *str, const char *format, 1662 va_list ap) 1663 VSPRINTF_INTERCEPTOR_IMPL(__isoc99_vsprintf, str, format, 1664 ap) 1665 1666 #endif // SANITIZER_INTERCEPT_ISOC99_PRINTF 1667 1668 INTERCEPTOR(int, printf, const char *format, ...) 1669 FORMAT_INTERCEPTOR_IMPL(printf, vprintf, format) 1670 1671 INTERCEPTOR(int, fprintf, __sanitizer_FILE *stream, const char *format, ...) 1672 FORMAT_INTERCEPTOR_IMPL(fprintf, vfprintf, stream, format) 1673 1674 #if SANITIZER_INTERCEPT___PRINTF_CHK 1675 INTERCEPTOR(int, __fprintf_chk, __sanitizer_FILE *stream, SIZE_T size, 1676 const char *format, ...) 1677 FORMAT_INTERCEPTOR_IMPL(__fprintf_chk, vfprintf, stream, format) 1678 #endif 1679 1680 INTERCEPTOR(int, sprintf, char *str, const char *format, ...) // NOLINT 1681 FORMAT_INTERCEPTOR_IMPL(sprintf, vsprintf, str, format) // NOLINT 1682 1683 #if SANITIZER_INTERCEPT___PRINTF_CHK 1684 INTERCEPTOR(int, __sprintf_chk, char *str, int flag, SIZE_T size_to, 1685 const char *format, ...) // NOLINT 1686 FORMAT_INTERCEPTOR_IMPL(__sprintf_chk, vsprintf, str, format) // NOLINT 1687 #endif 1688 1689 INTERCEPTOR(int, snprintf, char *str, SIZE_T size, const char *format, ...) 1690 FORMAT_INTERCEPTOR_IMPL(snprintf, vsnprintf, str, size, format) 1691 1692 #if SANITIZER_INTERCEPT___PRINTF_CHK 1693 INTERCEPTOR(int, __snprintf_chk, char *str, SIZE_T size, int flag, 1694 SIZE_T size_to, const char *format, ...) // NOLINT 1695 FORMAT_INTERCEPTOR_IMPL(__snprintf_chk, vsnprintf, str, size, format) // NOLINT 1696 #endif 1697 1698 INTERCEPTOR(int, asprintf, char **strp, const char *format, ...) 1699 FORMAT_INTERCEPTOR_IMPL(asprintf, vasprintf, strp, format) 1700 1701 #if SANITIZER_INTERCEPT_ISOC99_PRINTF 1702 INTERCEPTOR(int, __isoc99_printf, const char *format, ...) 1703 FORMAT_INTERCEPTOR_IMPL(__isoc99_printf, __isoc99_vprintf, format) 1704 1705 INTERCEPTOR(int, __isoc99_fprintf, __sanitizer_FILE *stream, const char *format, 1706 ...) 1707 FORMAT_INTERCEPTOR_IMPL(__isoc99_fprintf, __isoc99_vfprintf, stream, format) 1708 1709 INTERCEPTOR(int, __isoc99_sprintf, char *str, const char *format, ...) 1710 FORMAT_INTERCEPTOR_IMPL(__isoc99_sprintf, __isoc99_vsprintf, str, format) 1711 1712 INTERCEPTOR(int, __isoc99_snprintf, char *str, SIZE_T size, 1713 const char *format, ...) 1714 FORMAT_INTERCEPTOR_IMPL(__isoc99_snprintf, __isoc99_vsnprintf, str, size, 1715 format) 1716 1717 #endif // SANITIZER_INTERCEPT_ISOC99_PRINTF 1718 1719 #endif // SANITIZER_INTERCEPT_PRINTF 1720 1721 #if SANITIZER_INTERCEPT_PRINTF 1722 #define INIT_PRINTF \ 1723 COMMON_INTERCEPT_FUNCTION_LDBL(printf); \ 1724 COMMON_INTERCEPT_FUNCTION_LDBL(sprintf); \ 1725 COMMON_INTERCEPT_FUNCTION_LDBL(snprintf); \ 1726 COMMON_INTERCEPT_FUNCTION_LDBL(asprintf); \ 1727 COMMON_INTERCEPT_FUNCTION_LDBL(fprintf); \ 1728 COMMON_INTERCEPT_FUNCTION_LDBL(vprintf); \ 1729 COMMON_INTERCEPT_FUNCTION_LDBL(vsprintf); \ 1730 COMMON_INTERCEPT_FUNCTION_LDBL(vsnprintf); \ 1731 COMMON_INTERCEPT_FUNCTION_LDBL(vasprintf); \ 1732 COMMON_INTERCEPT_FUNCTION_LDBL(vfprintf); 1733 #else 1734 #define INIT_PRINTF 1735 #endif 1736 1737 #if SANITIZER_INTERCEPT___PRINTF_CHK 1738 #define INIT___PRINTF_CHK \ 1739 COMMON_INTERCEPT_FUNCTION(__sprintf_chk); \ 1740 COMMON_INTERCEPT_FUNCTION(__snprintf_chk); \ 1741 COMMON_INTERCEPT_FUNCTION(__vsprintf_chk); \ 1742 COMMON_INTERCEPT_FUNCTION(__vsnprintf_chk); \ 1743 COMMON_INTERCEPT_FUNCTION(__fprintf_chk); 1744 #else 1745 #define INIT___PRINTF_CHK 1746 #endif 1747 1748 #if SANITIZER_INTERCEPT_PRINTF_L 1749 #define INIT_PRINTF_L \ 1750 COMMON_INTERCEPT_FUNCTION(snprintf_l); \ 1751 COMMON_INTERCEPT_FUNCTION(vsnprintf_l); 1752 #else 1753 #define INIT_PRINTF_L 1754 #endif 1755 1756 #if SANITIZER_INTERCEPT_ISOC99_PRINTF 1757 #define INIT_ISOC99_PRINTF \ 1758 COMMON_INTERCEPT_FUNCTION(__isoc99_printf); \ 1759 COMMON_INTERCEPT_FUNCTION(__isoc99_sprintf); \ 1760 COMMON_INTERCEPT_FUNCTION(__isoc99_snprintf); \ 1761 COMMON_INTERCEPT_FUNCTION(__isoc99_fprintf); \ 1762 COMMON_INTERCEPT_FUNCTION(__isoc99_vprintf); \ 1763 COMMON_INTERCEPT_FUNCTION(__isoc99_vsprintf); \ 1764 COMMON_INTERCEPT_FUNCTION(__isoc99_vsnprintf); \ 1765 COMMON_INTERCEPT_FUNCTION(__isoc99_vfprintf); 1766 #else 1767 #define INIT_ISOC99_PRINTF 1768 #endif 1769 1770 #if SANITIZER_INTERCEPT_IOCTL 1771 #include "sanitizer_common_interceptors_ioctl.inc" 1772 #include "sanitizer_interceptors_ioctl_netbsd.inc" 1773 INTERCEPTOR(int, ioctl, int d, unsigned long request, ...) { 1774 // We need a frame pointer, because we call into ioctl_common_[pre|post] which 1775 // can trigger a report and we need to be able to unwind through this 1776 // function. On Mac in debug mode we might not have a frame pointer, because 1777 // ioctl_common_[pre|post] doesn't get inlined here. 1778 ENABLE_FRAME_POINTER; 1779 1780 void *ctx; 1781 va_list ap; 1782 va_start(ap, request); 1783 void *arg = va_arg(ap, void *); 1784 va_end(ap); 1785 COMMON_INTERCEPTOR_ENTER(ctx, ioctl, d, request, arg); 1786 1787 CHECK(ioctl_initialized); 1788 1789 // Note: TSan does not use common flags, and they are zero-initialized. 1790 // This effectively disables ioctl handling in TSan. 1791 if (!common_flags()->handle_ioctl) return REAL(ioctl)(d, request, arg); 1792 1793 // Although request is unsigned long, the rest of the interceptor uses it 1794 // as just "unsigned" to save space, because we know that all values fit in 1795 // "unsigned" - they are compile-time constants. 1796 1797 const ioctl_desc *desc = ioctl_lookup(request); 1798 ioctl_desc decoded_desc; 1799 if (!desc) { 1800 VPrintf(2, "Decoding unknown ioctl 0x%x\n", request); 1801 if (!ioctl_decode(request, &decoded_desc)) 1802 Printf("WARNING: failed decoding unknown ioctl 0x%x\n", request); 1803 else 1804 desc = &decoded_desc; 1805 } 1806 1807 if (desc) ioctl_common_pre(ctx, desc, d, request, arg); 1808 int res = REAL(ioctl)(d, request, arg); 1809 // FIXME: some ioctls have different return values for success and failure. 1810 if (desc && res != -1) ioctl_common_post(ctx, desc, res, d, request, arg); 1811 return res; 1812 } 1813 #define INIT_IOCTL \ 1814 ioctl_init(); \ 1815 COMMON_INTERCEPT_FUNCTION(ioctl); 1816 #else 1817 #define INIT_IOCTL 1818 #endif 1819 1820 #if SANITIZER_INTERCEPT_GETPWNAM_AND_FRIENDS || \ 1821 SANITIZER_INTERCEPT_GETPWENT || SANITIZER_INTERCEPT_FGETPWENT || \ 1822 SANITIZER_INTERCEPT_GETPWENT_R || \ 1823 SANITIZER_INTERCEPT_GETPWNAM_R_AND_FRIENDS || \ 1824 SANITIZER_INTERCEPT_FGETPWENT_R || \ 1825 SANITIZER_INTERCEPT_FGETGRENT_R 1826 static void unpoison_passwd(void *ctx, __sanitizer_passwd *pwd) { 1827 if (pwd) { 1828 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, pwd, sizeof(*pwd)); 1829 if (pwd->pw_name) 1830 COMMON_INTERCEPTOR_INITIALIZE_RANGE(pwd->pw_name, 1831 REAL(strlen)(pwd->pw_name) + 1); 1832 if (pwd->pw_passwd) 1833 COMMON_INTERCEPTOR_INITIALIZE_RANGE(pwd->pw_passwd, 1834 REAL(strlen)(pwd->pw_passwd) + 1); 1835 #if !SANITIZER_ANDROID 1836 if (pwd->pw_gecos) 1837 COMMON_INTERCEPTOR_INITIALIZE_RANGE(pwd->pw_gecos, 1838 REAL(strlen)(pwd->pw_gecos) + 1); 1839 #endif 1840 #if SANITIZER_MAC 1841 if (pwd->pw_class) 1842 COMMON_INTERCEPTOR_INITIALIZE_RANGE(pwd->pw_class, 1843 REAL(strlen)(pwd->pw_class) + 1); 1844 #endif 1845 if (pwd->pw_dir) 1846 COMMON_INTERCEPTOR_INITIALIZE_RANGE(pwd->pw_dir, 1847 REAL(strlen)(pwd->pw_dir) + 1); 1848 if (pwd->pw_shell) 1849 COMMON_INTERCEPTOR_INITIALIZE_RANGE(pwd->pw_shell, 1850 REAL(strlen)(pwd->pw_shell) + 1); 1851 } 1852 } 1853 1854 static void unpoison_group(void *ctx, __sanitizer_group *grp) { 1855 if (grp) { 1856 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, grp, sizeof(*grp)); 1857 if (grp->gr_name) 1858 COMMON_INTERCEPTOR_INITIALIZE_RANGE(grp->gr_name, 1859 REAL(strlen)(grp->gr_name) + 1); 1860 if (grp->gr_passwd) 1861 COMMON_INTERCEPTOR_INITIALIZE_RANGE(grp->gr_passwd, 1862 REAL(strlen)(grp->gr_passwd) + 1); 1863 char **p = grp->gr_mem; 1864 for (; *p; ++p) { 1865 COMMON_INTERCEPTOR_INITIALIZE_RANGE(*p, REAL(strlen)(*p) + 1); 1866 } 1867 COMMON_INTERCEPTOR_INITIALIZE_RANGE(grp->gr_mem, 1868 (p - grp->gr_mem + 1) * sizeof(*p)); 1869 } 1870 } 1871 #endif // SANITIZER_INTERCEPT_GETPWNAM_AND_FRIENDS || 1872 // SANITIZER_INTERCEPT_GETPWENT || SANITIZER_INTERCEPT_FGETPWENT || 1873 // SANITIZER_INTERCEPT_GETPWENT_R || 1874 // SANITIZER_INTERCEPT_GETPWNAM_R_AND_FRIENDS 1875 1876 #if SANITIZER_INTERCEPT_GETPWNAM_AND_FRIENDS 1877 INTERCEPTOR(__sanitizer_passwd *, getpwnam, const char *name) { 1878 void *ctx; 1879 COMMON_INTERCEPTOR_ENTER(ctx, getpwnam, name); 1880 if (name) 1881 COMMON_INTERCEPTOR_READ_RANGE(ctx, name, REAL(strlen)(name) + 1); 1882 __sanitizer_passwd *res = REAL(getpwnam)(name); 1883 if (res) unpoison_passwd(ctx, res); 1884 return res; 1885 } 1886 INTERCEPTOR(__sanitizer_passwd *, getpwuid, u32 uid) { 1887 void *ctx; 1888 COMMON_INTERCEPTOR_ENTER(ctx, getpwuid, uid); 1889 __sanitizer_passwd *res = REAL(getpwuid)(uid); 1890 if (res) unpoison_passwd(ctx, res); 1891 return res; 1892 } 1893 INTERCEPTOR(__sanitizer_group *, getgrnam, const char *name) { 1894 void *ctx; 1895 COMMON_INTERCEPTOR_ENTER(ctx, getgrnam, name); 1896 COMMON_INTERCEPTOR_READ_RANGE(ctx, name, REAL(strlen)(name) + 1); 1897 __sanitizer_group *res = REAL(getgrnam)(name); 1898 if (res) unpoison_group(ctx, res); 1899 return res; 1900 } 1901 INTERCEPTOR(__sanitizer_group *, getgrgid, u32 gid) { 1902 void *ctx; 1903 COMMON_INTERCEPTOR_ENTER(ctx, getgrgid, gid); 1904 __sanitizer_group *res = REAL(getgrgid)(gid); 1905 if (res) unpoison_group(ctx, res); 1906 return res; 1907 } 1908 #define INIT_GETPWNAM_AND_FRIENDS \ 1909 COMMON_INTERCEPT_FUNCTION(getpwnam); \ 1910 COMMON_INTERCEPT_FUNCTION(getpwuid); \ 1911 COMMON_INTERCEPT_FUNCTION(getgrnam); \ 1912 COMMON_INTERCEPT_FUNCTION(getgrgid); 1913 #else 1914 #define INIT_GETPWNAM_AND_FRIENDS 1915 #endif 1916 1917 #if SANITIZER_INTERCEPT_GETPWNAM_R_AND_FRIENDS 1918 INTERCEPTOR(int, getpwnam_r, const char *name, __sanitizer_passwd *pwd, 1919 char *buf, SIZE_T buflen, __sanitizer_passwd **result) { 1920 void *ctx; 1921 COMMON_INTERCEPTOR_ENTER(ctx, getpwnam_r, name, pwd, buf, buflen, result); 1922 COMMON_INTERCEPTOR_READ_RANGE(ctx, name, REAL(strlen)(name) + 1); 1923 // FIXME: under ASan the call below may write to freed memory and corrupt 1924 // its metadata. See 1925 // https://github.com/google/sanitizers/issues/321. 1926 int res = REAL(getpwnam_r)(name, pwd, buf, buflen, result); 1927 if (!res) { 1928 if (result && *result) unpoison_passwd(ctx, *result); 1929 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, buf, buflen); 1930 } 1931 if (result) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, result, sizeof(*result)); 1932 return res; 1933 } 1934 INTERCEPTOR(int, getpwuid_r, u32 uid, __sanitizer_passwd *pwd, char *buf, 1935 SIZE_T buflen, __sanitizer_passwd **result) { 1936 void *ctx; 1937 COMMON_INTERCEPTOR_ENTER(ctx, getpwuid_r, uid, pwd, buf, buflen, result); 1938 // FIXME: under ASan the call below may write to freed memory and corrupt 1939 // its metadata. See 1940 // https://github.com/google/sanitizers/issues/321. 1941 int res = REAL(getpwuid_r)(uid, pwd, buf, buflen, result); 1942 if (!res) { 1943 if (result && *result) unpoison_passwd(ctx, *result); 1944 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, buf, buflen); 1945 } 1946 if (result) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, result, sizeof(*result)); 1947 return res; 1948 } 1949 INTERCEPTOR(int, getgrnam_r, const char *name, __sanitizer_group *grp, 1950 char *buf, SIZE_T buflen, __sanitizer_group **result) { 1951 void *ctx; 1952 COMMON_INTERCEPTOR_ENTER(ctx, getgrnam_r, name, grp, buf, buflen, result); 1953 COMMON_INTERCEPTOR_READ_RANGE(ctx, name, REAL(strlen)(name) + 1); 1954 // FIXME: under ASan the call below may write to freed memory and corrupt 1955 // its metadata. See 1956 // https://github.com/google/sanitizers/issues/321. 1957 int res = REAL(getgrnam_r)(name, grp, buf, buflen, result); 1958 if (!res) { 1959 if (result && *result) unpoison_group(ctx, *result); 1960 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, buf, buflen); 1961 } 1962 if (result) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, result, sizeof(*result)); 1963 return res; 1964 } 1965 INTERCEPTOR(int, getgrgid_r, u32 gid, __sanitizer_group *grp, char *buf, 1966 SIZE_T buflen, __sanitizer_group **result) { 1967 void *ctx; 1968 COMMON_INTERCEPTOR_ENTER(ctx, getgrgid_r, gid, grp, buf, buflen, result); 1969 // FIXME: under ASan the call below may write to freed memory and corrupt 1970 // its metadata. See 1971 // https://github.com/google/sanitizers/issues/321. 1972 int res = REAL(getgrgid_r)(gid, grp, buf, buflen, result); 1973 if (!res) { 1974 if (result && *result) unpoison_group(ctx, *result); 1975 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, buf, buflen); 1976 } 1977 if (result) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, result, sizeof(*result)); 1978 return res; 1979 } 1980 #define INIT_GETPWNAM_R_AND_FRIENDS \ 1981 COMMON_INTERCEPT_FUNCTION(getpwnam_r); \ 1982 COMMON_INTERCEPT_FUNCTION(getpwuid_r); \ 1983 COMMON_INTERCEPT_FUNCTION(getgrnam_r); \ 1984 COMMON_INTERCEPT_FUNCTION(getgrgid_r); 1985 #else 1986 #define INIT_GETPWNAM_R_AND_FRIENDS 1987 #endif 1988 1989 #if SANITIZER_INTERCEPT_GETPWENT 1990 INTERCEPTOR(__sanitizer_passwd *, getpwent, int dummy) { 1991 void *ctx; 1992 COMMON_INTERCEPTOR_ENTER(ctx, getpwent, dummy); 1993 __sanitizer_passwd *res = REAL(getpwent)(dummy); 1994 if (res) unpoison_passwd(ctx, res); 1995 return res; 1996 } 1997 INTERCEPTOR(__sanitizer_group *, getgrent, int dummy) { 1998 void *ctx; 1999 COMMON_INTERCEPTOR_ENTER(ctx, getgrent, dummy); 2000 __sanitizer_group *res = REAL(getgrent)(dummy); 2001 if (res) unpoison_group(ctx, res);; 2002 return res; 2003 } 2004 #define INIT_GETPWENT \ 2005 COMMON_INTERCEPT_FUNCTION(getpwent); \ 2006 COMMON_INTERCEPT_FUNCTION(getgrent); 2007 #else 2008 #define INIT_GETPWENT 2009 #endif 2010 2011 #if SANITIZER_INTERCEPT_FGETPWENT 2012 INTERCEPTOR(__sanitizer_passwd *, fgetpwent, void *fp) { 2013 void *ctx; 2014 COMMON_INTERCEPTOR_ENTER(ctx, fgetpwent, fp); 2015 __sanitizer_passwd *res = REAL(fgetpwent)(fp); 2016 if (res) unpoison_passwd(ctx, res); 2017 return res; 2018 } 2019 INTERCEPTOR(__sanitizer_group *, fgetgrent, void *fp) { 2020 void *ctx; 2021 COMMON_INTERCEPTOR_ENTER(ctx, fgetgrent, fp); 2022 __sanitizer_group *res = REAL(fgetgrent)(fp); 2023 if (res) unpoison_group(ctx, res); 2024 return res; 2025 } 2026 #define INIT_FGETPWENT \ 2027 COMMON_INTERCEPT_FUNCTION(fgetpwent); \ 2028 COMMON_INTERCEPT_FUNCTION(fgetgrent); 2029 #else 2030 #define INIT_FGETPWENT 2031 #endif 2032 2033 #if SANITIZER_INTERCEPT_GETPWENT_R 2034 INTERCEPTOR(int, getpwent_r, __sanitizer_passwd *pwbuf, char *buf, 2035 SIZE_T buflen, __sanitizer_passwd **pwbufp) { 2036 void *ctx; 2037 COMMON_INTERCEPTOR_ENTER(ctx, getpwent_r, pwbuf, buf, buflen, pwbufp); 2038 // FIXME: under ASan the call below may write to freed memory and corrupt 2039 // its metadata. See 2040 // https://github.com/google/sanitizers/issues/321. 2041 int res = REAL(getpwent_r)(pwbuf, buf, buflen, pwbufp); 2042 if (!res) { 2043 if (pwbufp && *pwbufp) unpoison_passwd(ctx, *pwbufp); 2044 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, buf, buflen); 2045 } 2046 if (pwbufp) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, pwbufp, sizeof(*pwbufp)); 2047 return res; 2048 } 2049 INTERCEPTOR(int, getgrent_r, __sanitizer_group *pwbuf, char *buf, SIZE_T buflen, 2050 __sanitizer_group **pwbufp) { 2051 void *ctx; 2052 COMMON_INTERCEPTOR_ENTER(ctx, getgrent_r, pwbuf, buf, buflen, pwbufp); 2053 // FIXME: under ASan the call below may write to freed memory and corrupt 2054 // its metadata. See 2055 // https://github.com/google/sanitizers/issues/321. 2056 int res = REAL(getgrent_r)(pwbuf, buf, buflen, pwbufp); 2057 if (!res) { 2058 if (pwbufp && *pwbufp) unpoison_group(ctx, *pwbufp); 2059 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, buf, buflen); 2060 } 2061 if (pwbufp) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, pwbufp, sizeof(*pwbufp)); 2062 return res; 2063 } 2064 #define INIT_GETPWENT_R \ 2065 COMMON_INTERCEPT_FUNCTION(getpwent_r); \ 2066 COMMON_INTERCEPT_FUNCTION(getgrent_r); 2067 #else 2068 #define INIT_GETPWENT_R 2069 #endif 2070 2071 #if SANITIZER_INTERCEPT_FGETPWENT_R 2072 INTERCEPTOR(int, fgetpwent_r, void *fp, __sanitizer_passwd *pwbuf, char *buf, 2073 SIZE_T buflen, __sanitizer_passwd **pwbufp) { 2074 void *ctx; 2075 COMMON_INTERCEPTOR_ENTER(ctx, fgetpwent_r, fp, pwbuf, buf, buflen, pwbufp); 2076 // FIXME: under ASan the call below may write to freed memory and corrupt 2077 // its metadata. See 2078 // https://github.com/google/sanitizers/issues/321. 2079 int res = REAL(fgetpwent_r)(fp, pwbuf, buf, buflen, pwbufp); 2080 if (!res) { 2081 if (pwbufp && *pwbufp) unpoison_passwd(ctx, *pwbufp); 2082 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, buf, buflen); 2083 } 2084 if (pwbufp) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, pwbufp, sizeof(*pwbufp)); 2085 return res; 2086 } 2087 #define INIT_FGETPWENT_R \ 2088 COMMON_INTERCEPT_FUNCTION(fgetpwent_r); 2089 #else 2090 #define INIT_FGETPWENT_R 2091 #endif 2092 2093 #if SANITIZER_INTERCEPT_FGETGRENT_R 2094 INTERCEPTOR(int, fgetgrent_r, void *fp, __sanitizer_group *pwbuf, char *buf, 2095 SIZE_T buflen, __sanitizer_group **pwbufp) { 2096 void *ctx; 2097 COMMON_INTERCEPTOR_ENTER(ctx, fgetgrent_r, fp, pwbuf, buf, buflen, pwbufp); 2098 // FIXME: under ASan the call below may write to freed memory and corrupt 2099 // its metadata. See 2100 // https://github.com/google/sanitizers/issues/321. 2101 int res = REAL(fgetgrent_r)(fp, pwbuf, buf, buflen, pwbufp); 2102 if (!res) { 2103 if (pwbufp && *pwbufp) unpoison_group(ctx, *pwbufp); 2104 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, buf, buflen); 2105 } 2106 if (pwbufp) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, pwbufp, sizeof(*pwbufp)); 2107 return res; 2108 } 2109 #define INIT_FGETGRENT_R \ 2110 COMMON_INTERCEPT_FUNCTION(fgetgrent_r); 2111 #else 2112 #define INIT_FGETGRENT_R 2113 #endif 2114 2115 #if SANITIZER_INTERCEPT_SETPWENT 2116 // The only thing these interceptors do is disable any nested interceptors. 2117 // These functions may open nss modules and call uninstrumented functions from 2118 // them, and we don't want things like strlen() to trigger. 2119 INTERCEPTOR(void, setpwent, int dummy) { 2120 void *ctx; 2121 COMMON_INTERCEPTOR_ENTER(ctx, setpwent, dummy); 2122 REAL(setpwent)(dummy); 2123 } 2124 INTERCEPTOR(void, endpwent, int dummy) { 2125 void *ctx; 2126 COMMON_INTERCEPTOR_ENTER(ctx, endpwent, dummy); 2127 REAL(endpwent)(dummy); 2128 } 2129 INTERCEPTOR(void, setgrent, int dummy) { 2130 void *ctx; 2131 COMMON_INTERCEPTOR_ENTER(ctx, setgrent, dummy); 2132 REAL(setgrent)(dummy); 2133 } 2134 INTERCEPTOR(void, endgrent, int dummy) { 2135 void *ctx; 2136 COMMON_INTERCEPTOR_ENTER(ctx, endgrent, dummy); 2137 REAL(endgrent)(dummy); 2138 } 2139 #define INIT_SETPWENT \ 2140 COMMON_INTERCEPT_FUNCTION(setpwent); \ 2141 COMMON_INTERCEPT_FUNCTION(endpwent); \ 2142 COMMON_INTERCEPT_FUNCTION(setgrent); \ 2143 COMMON_INTERCEPT_FUNCTION(endgrent); 2144 #else 2145 #define INIT_SETPWENT 2146 #endif 2147 2148 #if SANITIZER_INTERCEPT_CLOCK_GETTIME 2149 INTERCEPTOR(int, clock_getres, u32 clk_id, void *tp) { 2150 void *ctx; 2151 COMMON_INTERCEPTOR_ENTER(ctx, clock_getres, clk_id, tp); 2152 // FIXME: under ASan the call below may write to freed memory and corrupt 2153 // its metadata. See 2154 // https://github.com/google/sanitizers/issues/321. 2155 int res = REAL(clock_getres)(clk_id, tp); 2156 if (!res && tp) { 2157 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, tp, struct_timespec_sz); 2158 } 2159 return res; 2160 } 2161 INTERCEPTOR(int, clock_gettime, u32 clk_id, void *tp) { 2162 void *ctx; 2163 COMMON_INTERCEPTOR_ENTER(ctx, clock_gettime, clk_id, tp); 2164 // FIXME: under ASan the call below may write to freed memory and corrupt 2165 // its metadata. See 2166 // https://github.com/google/sanitizers/issues/321. 2167 int res = REAL(clock_gettime)(clk_id, tp); 2168 if (!res) { 2169 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, tp, struct_timespec_sz); 2170 } 2171 return res; 2172 } 2173 namespace __sanitizer { 2174 extern "C" { 2175 int real_clock_gettime(u32 clk_id, void *tp) { 2176 if (COMMON_INTERCEPTOR_NOTHING_IS_INITIALIZED) 2177 return internal_clock_gettime(clk_id, tp); 2178 return REAL(clock_gettime)(clk_id, tp); 2179 } 2180 } // extern "C" 2181 } // namespace __sanitizer 2182 INTERCEPTOR(int, clock_settime, u32 clk_id, const void *tp) { 2183 void *ctx; 2184 COMMON_INTERCEPTOR_ENTER(ctx, clock_settime, clk_id, tp); 2185 COMMON_INTERCEPTOR_READ_RANGE(ctx, tp, struct_timespec_sz); 2186 return REAL(clock_settime)(clk_id, tp); 2187 } 2188 #define INIT_CLOCK_GETTIME \ 2189 COMMON_INTERCEPT_FUNCTION(clock_getres); \ 2190 COMMON_INTERCEPT_FUNCTION(clock_gettime); \ 2191 COMMON_INTERCEPT_FUNCTION(clock_settime); 2192 #else 2193 #define INIT_CLOCK_GETTIME 2194 #endif 2195 2196 #if SANITIZER_INTERCEPT_GETITIMER 2197 INTERCEPTOR(int, getitimer, int which, void *curr_value) { 2198 void *ctx; 2199 COMMON_INTERCEPTOR_ENTER(ctx, getitimer, which, curr_value); 2200 // FIXME: under ASan the call below may write to freed memory and corrupt 2201 // its metadata. See 2202 // https://github.com/google/sanitizers/issues/321. 2203 int res = REAL(getitimer)(which, curr_value); 2204 if (!res && curr_value) { 2205 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, curr_value, struct_itimerval_sz); 2206 } 2207 return res; 2208 } 2209 INTERCEPTOR(int, setitimer, int which, const void *new_value, void *old_value) { 2210 void *ctx; 2211 COMMON_INTERCEPTOR_ENTER(ctx, setitimer, which, new_value, old_value); 2212 if (new_value) { 2213 // itimerval can contain padding that may be legitimately uninitialized 2214 const struct __sanitizer_itimerval *nv = 2215 (const struct __sanitizer_itimerval *)new_value; 2216 COMMON_INTERCEPTOR_READ_RANGE(ctx, &nv->it_interval.tv_sec, 2217 sizeof(__sanitizer_time_t)); 2218 COMMON_INTERCEPTOR_READ_RANGE(ctx, &nv->it_interval.tv_usec, 2219 sizeof(__sanitizer_suseconds_t)); 2220 COMMON_INTERCEPTOR_READ_RANGE(ctx, &nv->it_value.tv_sec, 2221 sizeof(__sanitizer_time_t)); 2222 COMMON_INTERCEPTOR_READ_RANGE(ctx, &nv->it_value.tv_usec, 2223 sizeof(__sanitizer_suseconds_t)); 2224 } 2225 // FIXME: under ASan the call below may write to freed memory and corrupt 2226 // its metadata. See 2227 // https://github.com/google/sanitizers/issues/321. 2228 int res = REAL(setitimer)(which, new_value, old_value); 2229 if (!res && old_value) { 2230 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, old_value, struct_itimerval_sz); 2231 } 2232 return res; 2233 } 2234 #define INIT_GETITIMER \ 2235 COMMON_INTERCEPT_FUNCTION(getitimer); \ 2236 COMMON_INTERCEPT_FUNCTION(setitimer); 2237 #else 2238 #define INIT_GETITIMER 2239 #endif 2240 2241 #if SANITIZER_INTERCEPT_GLOB 2242 static void unpoison_glob_t(void *ctx, __sanitizer_glob_t *pglob) { 2243 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, pglob, sizeof(*pglob)); 2244 // +1 for NULL pointer at the end. 2245 if (pglob->gl_pathv) 2246 COMMON_INTERCEPTOR_WRITE_RANGE( 2247 ctx, pglob->gl_pathv, (pglob->gl_pathc + 1) * sizeof(*pglob->gl_pathv)); 2248 for (SIZE_T i = 0; i < pglob->gl_pathc; ++i) { 2249 char *p = pglob->gl_pathv[i]; 2250 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, p, REAL(strlen)(p) + 1); 2251 } 2252 } 2253 2254 #if SANITIZER_SOLARIS 2255 INTERCEPTOR(int, glob, const char *pattern, int flags, 2256 int (*errfunc)(const char *epath, int eerrno), 2257 __sanitizer_glob_t *pglob) { 2258 void *ctx; 2259 COMMON_INTERCEPTOR_ENTER(ctx, glob, pattern, flags, errfunc, pglob); 2260 COMMON_INTERCEPTOR_READ_STRING(ctx, pattern, 0); 2261 int res = REAL(glob)(pattern, flags, errfunc, pglob); 2262 if ((!res || res == glob_nomatch) && pglob) unpoison_glob_t(ctx, pglob); 2263 return res; 2264 } 2265 #else 2266 static THREADLOCAL __sanitizer_glob_t *pglob_copy; 2267 2268 static void wrapped_gl_closedir(void *dir) { 2269 COMMON_INTERCEPTOR_UNPOISON_PARAM(1); 2270 pglob_copy->gl_closedir(dir); 2271 } 2272 2273 static void *wrapped_gl_readdir(void *dir) { 2274 COMMON_INTERCEPTOR_UNPOISON_PARAM(1); 2275 return pglob_copy->gl_readdir(dir); 2276 } 2277 2278 static void *wrapped_gl_opendir(const char *s) { 2279 COMMON_INTERCEPTOR_UNPOISON_PARAM(1); 2280 COMMON_INTERCEPTOR_INITIALIZE_RANGE(s, REAL(strlen)(s) + 1); 2281 return pglob_copy->gl_opendir(s); 2282 } 2283 2284 static int wrapped_gl_lstat(const char *s, void *st) { 2285 COMMON_INTERCEPTOR_UNPOISON_PARAM(2); 2286 COMMON_INTERCEPTOR_INITIALIZE_RANGE(s, REAL(strlen)(s) + 1); 2287 return pglob_copy->gl_lstat(s, st); 2288 } 2289 2290 static int wrapped_gl_stat(const char *s, void *st) { 2291 COMMON_INTERCEPTOR_UNPOISON_PARAM(2); 2292 COMMON_INTERCEPTOR_INITIALIZE_RANGE(s, REAL(strlen)(s) + 1); 2293 return pglob_copy->gl_stat(s, st); 2294 } 2295 2296 static const __sanitizer_glob_t kGlobCopy = { 2297 0, 0, 0, 2298 0, wrapped_gl_closedir, wrapped_gl_readdir, 2299 wrapped_gl_opendir, wrapped_gl_lstat, wrapped_gl_stat}; 2300 2301 INTERCEPTOR(int, glob, const char *pattern, int flags, 2302 int (*errfunc)(const char *epath, int eerrno), 2303 __sanitizer_glob_t *pglob) { 2304 void *ctx; 2305 COMMON_INTERCEPTOR_ENTER(ctx, glob, pattern, flags, errfunc, pglob); 2306 COMMON_INTERCEPTOR_READ_STRING(ctx, pattern, 0); 2307 __sanitizer_glob_t glob_copy; 2308 internal_memcpy(&glob_copy, &kGlobCopy, sizeof(glob_copy)); 2309 if (flags & glob_altdirfunc) { 2310 Swap(pglob->gl_closedir, glob_copy.gl_closedir); 2311 Swap(pglob->gl_readdir, glob_copy.gl_readdir); 2312 Swap(pglob->gl_opendir, glob_copy.gl_opendir); 2313 Swap(pglob->gl_lstat, glob_copy.gl_lstat); 2314 Swap(pglob->gl_stat, glob_copy.gl_stat); 2315 pglob_copy = &glob_copy; 2316 } 2317 int res = REAL(glob)(pattern, flags, errfunc, pglob); 2318 if (flags & glob_altdirfunc) { 2319 Swap(pglob->gl_closedir, glob_copy.gl_closedir); 2320 Swap(pglob->gl_readdir, glob_copy.gl_readdir); 2321 Swap(pglob->gl_opendir, glob_copy.gl_opendir); 2322 Swap(pglob->gl_lstat, glob_copy.gl_lstat); 2323 Swap(pglob->gl_stat, glob_copy.gl_stat); 2324 } 2325 pglob_copy = 0; 2326 if ((!res || res == glob_nomatch) && pglob) unpoison_glob_t(ctx, pglob); 2327 return res; 2328 } 2329 #endif // SANITIZER_SOLARIS 2330 #define INIT_GLOB \ 2331 COMMON_INTERCEPT_FUNCTION(glob); 2332 #else // SANITIZER_INTERCEPT_GLOB 2333 #define INIT_GLOB 2334 #endif // SANITIZER_INTERCEPT_GLOB 2335 2336 #if SANITIZER_INTERCEPT_GLOB64 2337 INTERCEPTOR(int, glob64, const char *pattern, int flags, 2338 int (*errfunc)(const char *epath, int eerrno), 2339 __sanitizer_glob_t *pglob) { 2340 void *ctx; 2341 COMMON_INTERCEPTOR_ENTER(ctx, glob64, pattern, flags, errfunc, pglob); 2342 COMMON_INTERCEPTOR_READ_STRING(ctx, pattern, 0); 2343 __sanitizer_glob_t glob_copy; 2344 internal_memcpy(&glob_copy, &kGlobCopy, sizeof(glob_copy)); 2345 if (flags & glob_altdirfunc) { 2346 Swap(pglob->gl_closedir, glob_copy.gl_closedir); 2347 Swap(pglob->gl_readdir, glob_copy.gl_readdir); 2348 Swap(pglob->gl_opendir, glob_copy.gl_opendir); 2349 Swap(pglob->gl_lstat, glob_copy.gl_lstat); 2350 Swap(pglob->gl_stat, glob_copy.gl_stat); 2351 pglob_copy = &glob_copy; 2352 } 2353 int res = REAL(glob64)(pattern, flags, errfunc, pglob); 2354 if (flags & glob_altdirfunc) { 2355 Swap(pglob->gl_closedir, glob_copy.gl_closedir); 2356 Swap(pglob->gl_readdir, glob_copy.gl_readdir); 2357 Swap(pglob->gl_opendir, glob_copy.gl_opendir); 2358 Swap(pglob->gl_lstat, glob_copy.gl_lstat); 2359 Swap(pglob->gl_stat, glob_copy.gl_stat); 2360 } 2361 pglob_copy = 0; 2362 if ((!res || res == glob_nomatch) && pglob) unpoison_glob_t(ctx, pglob); 2363 return res; 2364 } 2365 #define INIT_GLOB64 \ 2366 COMMON_INTERCEPT_FUNCTION(glob64); 2367 #else // SANITIZER_INTERCEPT_GLOB64 2368 #define INIT_GLOB64 2369 #endif // SANITIZER_INTERCEPT_GLOB64 2370 2371 #if SANITIZER_INTERCEPT_WAIT 2372 // According to sys/wait.h, wait(), waitid(), waitpid() may have symbol version 2373 // suffixes on Darwin. See the declaration of INTERCEPTOR_WITH_SUFFIX for 2374 // details. 2375 INTERCEPTOR_WITH_SUFFIX(int, wait, int *status) { 2376 void *ctx; 2377 COMMON_INTERCEPTOR_ENTER(ctx, wait, status); 2378 // FIXME: under ASan the call below may write to freed memory and corrupt 2379 // its metadata. See 2380 // https://github.com/google/sanitizers/issues/321. 2381 int res = REAL(wait)(status); 2382 if (res != -1 && status) 2383 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, status, sizeof(*status)); 2384 return res; 2385 } 2386 // On FreeBSD id_t is always 64-bit wide. 2387 #if SANITIZER_FREEBSD && (SANITIZER_WORDSIZE == 32) 2388 INTERCEPTOR_WITH_SUFFIX(int, waitid, int idtype, long long id, void *infop, 2389 int options) { 2390 #else 2391 INTERCEPTOR_WITH_SUFFIX(int, waitid, int idtype, int id, void *infop, 2392 int options) { 2393 #endif 2394 void *ctx; 2395 COMMON_INTERCEPTOR_ENTER(ctx, waitid, idtype, id, infop, options); 2396 // FIXME: under ASan the call below may write to freed memory and corrupt 2397 // its metadata. See 2398 // https://github.com/google/sanitizers/issues/321. 2399 int res = REAL(waitid)(idtype, id, infop, options); 2400 if (res != -1 && infop) 2401 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, infop, siginfo_t_sz); 2402 return res; 2403 } 2404 INTERCEPTOR_WITH_SUFFIX(int, waitpid, int pid, int *status, int options) { 2405 void *ctx; 2406 COMMON_INTERCEPTOR_ENTER(ctx, waitpid, pid, status, options); 2407 // FIXME: under ASan the call below may write to freed memory and corrupt 2408 // its metadata. See 2409 // https://github.com/google/sanitizers/issues/321. 2410 int res = REAL(waitpid)(pid, status, options); 2411 if (res != -1 && status) 2412 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, status, sizeof(*status)); 2413 return res; 2414 } 2415 INTERCEPTOR(int, wait3, int *status, int options, void *rusage) { 2416 void *ctx; 2417 COMMON_INTERCEPTOR_ENTER(ctx, wait3, status, options, rusage); 2418 // FIXME: under ASan the call below may write to freed memory and corrupt 2419 // its metadata. See 2420 // https://github.com/google/sanitizers/issues/321. 2421 int res = REAL(wait3)(status, options, rusage); 2422 if (res != -1) { 2423 if (status) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, status, sizeof(*status)); 2424 if (rusage) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, rusage, struct_rusage_sz); 2425 } 2426 return res; 2427 } 2428 #if SANITIZER_ANDROID 2429 INTERCEPTOR(int, __wait4, int pid, int *status, int options, void *rusage) { 2430 void *ctx; 2431 COMMON_INTERCEPTOR_ENTER(ctx, __wait4, pid, status, options, rusage); 2432 // FIXME: under ASan the call below may write to freed memory and corrupt 2433 // its metadata. See 2434 // https://github.com/google/sanitizers/issues/321. 2435 int res = REAL(__wait4)(pid, status, options, rusage); 2436 if (res != -1) { 2437 if (status) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, status, sizeof(*status)); 2438 if (rusage) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, rusage, struct_rusage_sz); 2439 } 2440 return res; 2441 } 2442 #define INIT_WAIT4 COMMON_INTERCEPT_FUNCTION(__wait4); 2443 #else 2444 INTERCEPTOR(int, wait4, int pid, int *status, int options, void *rusage) { 2445 void *ctx; 2446 COMMON_INTERCEPTOR_ENTER(ctx, wait4, pid, status, options, rusage); 2447 // FIXME: under ASan the call below may write to freed memory and corrupt 2448 // its metadata. See 2449 // https://github.com/google/sanitizers/issues/321. 2450 int res = REAL(wait4)(pid, status, options, rusage); 2451 if (res != -1) { 2452 if (status) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, status, sizeof(*status)); 2453 if (rusage) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, rusage, struct_rusage_sz); 2454 } 2455 return res; 2456 } 2457 #define INIT_WAIT4 COMMON_INTERCEPT_FUNCTION(wait4); 2458 #endif // SANITIZER_ANDROID 2459 #define INIT_WAIT \ 2460 COMMON_INTERCEPT_FUNCTION(wait); \ 2461 COMMON_INTERCEPT_FUNCTION(waitid); \ 2462 COMMON_INTERCEPT_FUNCTION(waitpid); \ 2463 COMMON_INTERCEPT_FUNCTION(wait3); 2464 #else 2465 #define INIT_WAIT 2466 #define INIT_WAIT4 2467 #endif 2468 2469 #if SANITIZER_INTERCEPT_INET 2470 INTERCEPTOR(char *, inet_ntop, int af, const void *src, char *dst, u32 size) { 2471 void *ctx; 2472 COMMON_INTERCEPTOR_ENTER(ctx, inet_ntop, af, src, dst, size); 2473 uptr sz = __sanitizer_in_addr_sz(af); 2474 if (sz) COMMON_INTERCEPTOR_READ_RANGE(ctx, src, sz); 2475 // FIXME: figure out read size based on the address family. 2476 // FIXME: under ASan the call below may write to freed memory and corrupt 2477 // its metadata. See 2478 // https://github.com/google/sanitizers/issues/321. 2479 char *res = REAL(inet_ntop)(af, src, dst, size); 2480 if (res) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, res, REAL(strlen)(res) + 1); 2481 return res; 2482 } 2483 INTERCEPTOR(int, inet_pton, int af, const char *src, void *dst) { 2484 void *ctx; 2485 COMMON_INTERCEPTOR_ENTER(ctx, inet_pton, af, src, dst); 2486 COMMON_INTERCEPTOR_READ_STRING(ctx, src, 0); 2487 // FIXME: figure out read size based on the address family. 2488 // FIXME: under ASan the call below may write to freed memory and corrupt 2489 // its metadata. See 2490 // https://github.com/google/sanitizers/issues/321. 2491 int res = REAL(inet_pton)(af, src, dst); 2492 if (res == 1) { 2493 uptr sz = __sanitizer_in_addr_sz(af); 2494 if (sz) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, dst, sz); 2495 } 2496 return res; 2497 } 2498 #define INIT_INET \ 2499 COMMON_INTERCEPT_FUNCTION(inet_ntop); \ 2500 COMMON_INTERCEPT_FUNCTION(inet_pton); 2501 #else 2502 #define INIT_INET 2503 #endif 2504 2505 #if SANITIZER_INTERCEPT_INET 2506 INTERCEPTOR(int, inet_aton, const char *cp, void *dst) { 2507 void *ctx; 2508 COMMON_INTERCEPTOR_ENTER(ctx, inet_aton, cp, dst); 2509 if (cp) COMMON_INTERCEPTOR_READ_RANGE(ctx, cp, REAL(strlen)(cp) + 1); 2510 // FIXME: under ASan the call below may write to freed memory and corrupt 2511 // its metadata. See 2512 // https://github.com/google/sanitizers/issues/321. 2513 int res = REAL(inet_aton)(cp, dst); 2514 if (res != 0) { 2515 uptr sz = __sanitizer_in_addr_sz(af_inet); 2516 if (sz) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, dst, sz); 2517 } 2518 return res; 2519 } 2520 #define INIT_INET_ATON COMMON_INTERCEPT_FUNCTION(inet_aton); 2521 #else 2522 #define INIT_INET_ATON 2523 #endif 2524 2525 #if SANITIZER_INTERCEPT_PTHREAD_GETSCHEDPARAM 2526 INTERCEPTOR(int, pthread_getschedparam, uptr thread, int *policy, int *param) { 2527 void *ctx; 2528 COMMON_INTERCEPTOR_ENTER(ctx, pthread_getschedparam, thread, policy, param); 2529 // FIXME: under ASan the call below may write to freed memory and corrupt 2530 // its metadata. See 2531 // https://github.com/google/sanitizers/issues/321. 2532 int res = REAL(pthread_getschedparam)(thread, policy, param); 2533 if (res == 0) { 2534 if (policy) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, policy, sizeof(*policy)); 2535 if (param) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, param, sizeof(*param)); 2536 } 2537 return res; 2538 } 2539 #define INIT_PTHREAD_GETSCHEDPARAM \ 2540 COMMON_INTERCEPT_FUNCTION(pthread_getschedparam); 2541 #else 2542 #define INIT_PTHREAD_GETSCHEDPARAM 2543 #endif 2544 2545 #if SANITIZER_INTERCEPT_GETADDRINFO 2546 INTERCEPTOR(int, getaddrinfo, char *node, char *service, 2547 struct __sanitizer_addrinfo *hints, 2548 struct __sanitizer_addrinfo **out) { 2549 void *ctx; 2550 COMMON_INTERCEPTOR_ENTER(ctx, getaddrinfo, node, service, hints, out); 2551 if (node) COMMON_INTERCEPTOR_READ_RANGE(ctx, node, REAL(strlen)(node) + 1); 2552 if (service) 2553 COMMON_INTERCEPTOR_READ_RANGE(ctx, service, REAL(strlen)(service) + 1); 2554 if (hints) 2555 COMMON_INTERCEPTOR_READ_RANGE(ctx, hints, sizeof(__sanitizer_addrinfo)); 2556 // FIXME: under ASan the call below may write to freed memory and corrupt 2557 // its metadata. See 2558 // https://github.com/google/sanitizers/issues/321. 2559 int res = REAL(getaddrinfo)(node, service, hints, out); 2560 if (res == 0 && out) { 2561 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, out, sizeof(*out)); 2562 struct __sanitizer_addrinfo *p = *out; 2563 while (p) { 2564 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, p, sizeof(*p)); 2565 if (p->ai_addr) 2566 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, p->ai_addr, p->ai_addrlen); 2567 if (p->ai_canonname) 2568 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, p->ai_canonname, 2569 REAL(strlen)(p->ai_canonname) + 1); 2570 p = p->ai_next; 2571 } 2572 } 2573 return res; 2574 } 2575 #define INIT_GETADDRINFO COMMON_INTERCEPT_FUNCTION(getaddrinfo); 2576 #else 2577 #define INIT_GETADDRINFO 2578 #endif 2579 2580 #if SANITIZER_INTERCEPT_GETNAMEINFO 2581 INTERCEPTOR(int, getnameinfo, void *sockaddr, unsigned salen, char *host, 2582 unsigned hostlen, char *serv, unsigned servlen, int flags) { 2583 void *ctx; 2584 COMMON_INTERCEPTOR_ENTER(ctx, getnameinfo, sockaddr, salen, host, hostlen, 2585 serv, servlen, flags); 2586 // FIXME: consider adding READ_RANGE(sockaddr, salen) 2587 // There is padding in in_addr that may make this too noisy 2588 // FIXME: under ASan the call below may write to freed memory and corrupt 2589 // its metadata. See 2590 // https://github.com/google/sanitizers/issues/321. 2591 int res = 2592 REAL(getnameinfo)(sockaddr, salen, host, hostlen, serv, servlen, flags); 2593 if (res == 0) { 2594 if (host && hostlen) 2595 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, host, REAL(strlen)(host) + 1); 2596 if (serv && servlen) 2597 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, serv, REAL(strlen)(serv) + 1); 2598 } 2599 return res; 2600 } 2601 #define INIT_GETNAMEINFO COMMON_INTERCEPT_FUNCTION(getnameinfo); 2602 #else 2603 #define INIT_GETNAMEINFO 2604 #endif 2605 2606 #if SANITIZER_INTERCEPT_GETSOCKNAME 2607 INTERCEPTOR(int, getsockname, int sock_fd, void *addr, int *addrlen) { 2608 void *ctx; 2609 COMMON_INTERCEPTOR_ENTER(ctx, getsockname, sock_fd, addr, addrlen); 2610 COMMON_INTERCEPTOR_READ_RANGE(ctx, addrlen, sizeof(*addrlen)); 2611 int addrlen_in = *addrlen; 2612 // FIXME: under ASan the call below may write to freed memory and corrupt 2613 // its metadata. See 2614 // https://github.com/google/sanitizers/issues/321. 2615 int res = REAL(getsockname)(sock_fd, addr, addrlen); 2616 if (res == 0) { 2617 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, addr, Min(addrlen_in, *addrlen)); 2618 } 2619 return res; 2620 } 2621 #define INIT_GETSOCKNAME COMMON_INTERCEPT_FUNCTION(getsockname); 2622 #else 2623 #define INIT_GETSOCKNAME 2624 #endif 2625 2626 #if SANITIZER_INTERCEPT_GETHOSTBYNAME || SANITIZER_INTERCEPT_GETHOSTBYNAME_R 2627 static void write_hostent(void *ctx, struct __sanitizer_hostent *h) { 2628 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, h, sizeof(__sanitizer_hostent)); 2629 if (h->h_name) 2630 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, h->h_name, REAL(strlen)(h->h_name) + 1); 2631 char **p = h->h_aliases; 2632 while (*p) { 2633 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, *p, REAL(strlen)(*p) + 1); 2634 ++p; 2635 } 2636 COMMON_INTERCEPTOR_WRITE_RANGE( 2637 ctx, h->h_aliases, (p - h->h_aliases + 1) * sizeof(*h->h_aliases)); 2638 p = h->h_addr_list; 2639 while (*p) { 2640 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, *p, h->h_length); 2641 ++p; 2642 } 2643 COMMON_INTERCEPTOR_WRITE_RANGE( 2644 ctx, h->h_addr_list, (p - h->h_addr_list + 1) * sizeof(*h->h_addr_list)); 2645 } 2646 #endif 2647 2648 #if SANITIZER_INTERCEPT_GETHOSTBYNAME 2649 INTERCEPTOR(struct __sanitizer_hostent *, gethostbyname, char *name) { 2650 void *ctx; 2651 COMMON_INTERCEPTOR_ENTER(ctx, gethostbyname, name); 2652 struct __sanitizer_hostent *res = REAL(gethostbyname)(name); 2653 if (res) write_hostent(ctx, res); 2654 return res; 2655 } 2656 2657 INTERCEPTOR(struct __sanitizer_hostent *, gethostbyaddr, void *addr, int len, 2658 int type) { 2659 void *ctx; 2660 COMMON_INTERCEPTOR_ENTER(ctx, gethostbyaddr, addr, len, type); 2661 COMMON_INTERCEPTOR_READ_RANGE(ctx, addr, len); 2662 struct __sanitizer_hostent *res = REAL(gethostbyaddr)(addr, len, type); 2663 if (res) write_hostent(ctx, res); 2664 return res; 2665 } 2666 2667 INTERCEPTOR(struct __sanitizer_hostent *, gethostent, int fake) { 2668 void *ctx; 2669 COMMON_INTERCEPTOR_ENTER(ctx, gethostent, fake); 2670 struct __sanitizer_hostent *res = REAL(gethostent)(fake); 2671 if (res) write_hostent(ctx, res); 2672 return res; 2673 } 2674 #define INIT_GETHOSTBYNAME \ 2675 COMMON_INTERCEPT_FUNCTION(gethostent); \ 2676 COMMON_INTERCEPT_FUNCTION(gethostbyaddr); \ 2677 COMMON_INTERCEPT_FUNCTION(gethostbyname); 2678 #else 2679 #define INIT_GETHOSTBYNAME 2680 #endif // SANITIZER_INTERCEPT_GETHOSTBYNAME 2681 2682 #if SANITIZER_INTERCEPT_GETHOSTBYNAME2 2683 INTERCEPTOR(struct __sanitizer_hostent *, gethostbyname2, char *name, int af) { 2684 void *ctx; 2685 COMMON_INTERCEPTOR_ENTER(ctx, gethostbyname2, name, af); 2686 struct __sanitizer_hostent *res = REAL(gethostbyname2)(name, af); 2687 if (res) write_hostent(ctx, res); 2688 return res; 2689 } 2690 #define INIT_GETHOSTBYNAME2 COMMON_INTERCEPT_FUNCTION(gethostbyname2); 2691 #else 2692 #define INIT_GETHOSTBYNAME2 2693 #endif // SANITIZER_INTERCEPT_GETHOSTBYNAME2 2694 2695 #if SANITIZER_INTERCEPT_GETHOSTBYNAME_R 2696 INTERCEPTOR(int, gethostbyname_r, char *name, struct __sanitizer_hostent *ret, 2697 char *buf, SIZE_T buflen, __sanitizer_hostent **result, 2698 int *h_errnop) { 2699 void *ctx; 2700 COMMON_INTERCEPTOR_ENTER(ctx, gethostbyname_r, name, ret, buf, buflen, result, 2701 h_errnop); 2702 // FIXME: under ASan the call below may write to freed memory and corrupt 2703 // its metadata. See 2704 // https://github.com/google/sanitizers/issues/321. 2705 int res = REAL(gethostbyname_r)(name, ret, buf, buflen, result, h_errnop); 2706 if (result) { 2707 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, result, sizeof(*result)); 2708 if (res == 0 && *result) write_hostent(ctx, *result); 2709 } 2710 if (h_errnop) 2711 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, h_errnop, sizeof(*h_errnop)); 2712 return res; 2713 } 2714 #define INIT_GETHOSTBYNAME_R COMMON_INTERCEPT_FUNCTION(gethostbyname_r); 2715 #else 2716 #define INIT_GETHOSTBYNAME_R 2717 #endif 2718 2719 #if SANITIZER_INTERCEPT_GETHOSTENT_R 2720 INTERCEPTOR(int, gethostent_r, struct __sanitizer_hostent *ret, char *buf, 2721 SIZE_T buflen, __sanitizer_hostent **result, int *h_errnop) { 2722 void *ctx; 2723 COMMON_INTERCEPTOR_ENTER(ctx, gethostent_r, ret, buf, buflen, result, 2724 h_errnop); 2725 // FIXME: under ASan the call below may write to freed memory and corrupt 2726 // its metadata. See 2727 // https://github.com/google/sanitizers/issues/321. 2728 int res = REAL(gethostent_r)(ret, buf, buflen, result, h_errnop); 2729 if (result) { 2730 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, result, sizeof(*result)); 2731 if (res == 0 && *result) write_hostent(ctx, *result); 2732 } 2733 if (h_errnop) 2734 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, h_errnop, sizeof(*h_errnop)); 2735 return res; 2736 } 2737 #define INIT_GETHOSTENT_R \ 2738 COMMON_INTERCEPT_FUNCTION(gethostent_r); 2739 #else 2740 #define INIT_GETHOSTENT_R 2741 #endif 2742 2743 #if SANITIZER_INTERCEPT_GETHOSTBYADDR_R 2744 INTERCEPTOR(int, gethostbyaddr_r, void *addr, int len, int type, 2745 struct __sanitizer_hostent *ret, char *buf, SIZE_T buflen, 2746 __sanitizer_hostent **result, int *h_errnop) { 2747 void *ctx; 2748 COMMON_INTERCEPTOR_ENTER(ctx, gethostbyaddr_r, addr, len, type, ret, buf, 2749 buflen, result, h_errnop); 2750 COMMON_INTERCEPTOR_READ_RANGE(ctx, addr, len); 2751 // FIXME: under ASan the call below may write to freed memory and corrupt 2752 // its metadata. See 2753 // https://github.com/google/sanitizers/issues/321. 2754 int res = REAL(gethostbyaddr_r)(addr, len, type, ret, buf, buflen, result, 2755 h_errnop); 2756 if (result) { 2757 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, result, sizeof(*result)); 2758 if (res == 0 && *result) write_hostent(ctx, *result); 2759 } 2760 if (h_errnop) 2761 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, h_errnop, sizeof(*h_errnop)); 2762 return res; 2763 } 2764 #define INIT_GETHOSTBYADDR_R \ 2765 COMMON_INTERCEPT_FUNCTION(gethostbyaddr_r); 2766 #else 2767 #define INIT_GETHOSTBYADDR_R 2768 #endif 2769 2770 #if SANITIZER_INTERCEPT_GETHOSTBYNAME2_R 2771 INTERCEPTOR(int, gethostbyname2_r, char *name, int af, 2772 struct __sanitizer_hostent *ret, char *buf, SIZE_T buflen, 2773 __sanitizer_hostent **result, int *h_errnop) { 2774 void *ctx; 2775 COMMON_INTERCEPTOR_ENTER(ctx, gethostbyname2_r, name, af, ret, buf, buflen, 2776 result, h_errnop); 2777 // FIXME: under ASan the call below may write to freed memory and corrupt 2778 // its metadata. See 2779 // https://github.com/google/sanitizers/issues/321. 2780 int res = 2781 REAL(gethostbyname2_r)(name, af, ret, buf, buflen, result, h_errnop); 2782 if (result) { 2783 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, result, sizeof(*result)); 2784 if (res == 0 && *result) write_hostent(ctx, *result); 2785 } 2786 if (h_errnop) 2787 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, h_errnop, sizeof(*h_errnop)); 2788 return res; 2789 } 2790 #define INIT_GETHOSTBYNAME2_R \ 2791 COMMON_INTERCEPT_FUNCTION(gethostbyname2_r); 2792 #else 2793 #define INIT_GETHOSTBYNAME2_R 2794 #endif 2795 2796 #if SANITIZER_INTERCEPT_GETSOCKOPT 2797 INTERCEPTOR(int, getsockopt, int sockfd, int level, int optname, void *optval, 2798 int *optlen) { 2799 void *ctx; 2800 COMMON_INTERCEPTOR_ENTER(ctx, getsockopt, sockfd, level, optname, optval, 2801 optlen); 2802 if (optlen) COMMON_INTERCEPTOR_READ_RANGE(ctx, optlen, sizeof(*optlen)); 2803 // FIXME: under ASan the call below may write to freed memory and corrupt 2804 // its metadata. See 2805 // https://github.com/google/sanitizers/issues/321. 2806 int res = REAL(getsockopt)(sockfd, level, optname, optval, optlen); 2807 if (res == 0) 2808 if (optval && optlen) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, optval, *optlen); 2809 return res; 2810 } 2811 #define INIT_GETSOCKOPT COMMON_INTERCEPT_FUNCTION(getsockopt); 2812 #else 2813 #define INIT_GETSOCKOPT 2814 #endif 2815 2816 #if SANITIZER_INTERCEPT_ACCEPT 2817 INTERCEPTOR(int, accept, int fd, void *addr, unsigned *addrlen) { 2818 void *ctx; 2819 COMMON_INTERCEPTOR_ENTER(ctx, accept, fd, addr, addrlen); 2820 unsigned addrlen0 = 0; 2821 if (addrlen) { 2822 COMMON_INTERCEPTOR_READ_RANGE(ctx, addrlen, sizeof(*addrlen)); 2823 addrlen0 = *addrlen; 2824 } 2825 int fd2 = REAL(accept)(fd, addr, addrlen); 2826 if (fd2 >= 0) { 2827 if (fd >= 0) COMMON_INTERCEPTOR_FD_SOCKET_ACCEPT(ctx, fd, fd2); 2828 if (addr && addrlen) 2829 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, addr, Min(*addrlen, addrlen0)); 2830 } 2831 return fd2; 2832 } 2833 #define INIT_ACCEPT COMMON_INTERCEPT_FUNCTION(accept); 2834 #else 2835 #define INIT_ACCEPT 2836 #endif 2837 2838 #if SANITIZER_INTERCEPT_ACCEPT4 2839 INTERCEPTOR(int, accept4, int fd, void *addr, unsigned *addrlen, int f) { 2840 void *ctx; 2841 COMMON_INTERCEPTOR_ENTER(ctx, accept4, fd, addr, addrlen, f); 2842 unsigned addrlen0 = 0; 2843 if (addrlen) { 2844 COMMON_INTERCEPTOR_READ_RANGE(ctx, addrlen, sizeof(*addrlen)); 2845 addrlen0 = *addrlen; 2846 } 2847 // FIXME: under ASan the call below may write to freed memory and corrupt 2848 // its metadata. See 2849 // https://github.com/google/sanitizers/issues/321. 2850 int fd2 = REAL(accept4)(fd, addr, addrlen, f); 2851 if (fd2 >= 0) { 2852 if (fd >= 0) COMMON_INTERCEPTOR_FD_SOCKET_ACCEPT(ctx, fd, fd2); 2853 if (addr && addrlen) 2854 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, addr, Min(*addrlen, addrlen0)); 2855 } 2856 return fd2; 2857 } 2858 #define INIT_ACCEPT4 COMMON_INTERCEPT_FUNCTION(accept4); 2859 #else 2860 #define INIT_ACCEPT4 2861 #endif 2862 2863 #if SANITIZER_INTERCEPT_PACCEPT 2864 INTERCEPTOR(int, paccept, int fd, void *addr, unsigned *addrlen, 2865 __sanitizer_sigset_t *set, int f) { 2866 void *ctx; 2867 COMMON_INTERCEPTOR_ENTER(ctx, paccept, fd, addr, addrlen, set, f); 2868 unsigned addrlen0 = 0; 2869 if (addrlen) { 2870 COMMON_INTERCEPTOR_READ_RANGE(ctx, addrlen, sizeof(*addrlen)); 2871 addrlen0 = *addrlen; 2872 } 2873 if (set) COMMON_INTERCEPTOR_READ_RANGE(ctx, set, sizeof(*set)); 2874 int fd2 = REAL(paccept)(fd, addr, addrlen, set, f); 2875 if (fd2 >= 0) { 2876 if (fd >= 0) COMMON_INTERCEPTOR_FD_SOCKET_ACCEPT(ctx, fd, fd2); 2877 if (addr && addrlen) 2878 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, addr, Min(*addrlen, addrlen0)); 2879 } 2880 return fd2; 2881 } 2882 #define INIT_PACCEPT COMMON_INTERCEPT_FUNCTION(paccept); 2883 #else 2884 #define INIT_PACCEPT 2885 #endif 2886 2887 #if SANITIZER_INTERCEPT_MODF 2888 INTERCEPTOR(double, modf, double x, double *iptr) { 2889 void *ctx; 2890 COMMON_INTERCEPTOR_ENTER(ctx, modf, x, iptr); 2891 // FIXME: under ASan the call below may write to freed memory and corrupt 2892 // its metadata. See 2893 // https://github.com/google/sanitizers/issues/321. 2894 double res = REAL(modf)(x, iptr); 2895 if (iptr) { 2896 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, iptr, sizeof(*iptr)); 2897 } 2898 return res; 2899 } 2900 INTERCEPTOR(float, modff, float x, float *iptr) { 2901 void *ctx; 2902 COMMON_INTERCEPTOR_ENTER(ctx, modff, x, iptr); 2903 // FIXME: under ASan the call below may write to freed memory and corrupt 2904 // its metadata. See 2905 // https://github.com/google/sanitizers/issues/321. 2906 float res = REAL(modff)(x, iptr); 2907 if (iptr) { 2908 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, iptr, sizeof(*iptr)); 2909 } 2910 return res; 2911 } 2912 INTERCEPTOR(long double, modfl, long double x, long double *iptr) { 2913 void *ctx; 2914 COMMON_INTERCEPTOR_ENTER(ctx, modfl, x, iptr); 2915 // FIXME: under ASan the call below may write to freed memory and corrupt 2916 // its metadata. See 2917 // https://github.com/google/sanitizers/issues/321. 2918 long double res = REAL(modfl)(x, iptr); 2919 if (iptr) { 2920 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, iptr, sizeof(*iptr)); 2921 } 2922 return res; 2923 } 2924 #define INIT_MODF \ 2925 COMMON_INTERCEPT_FUNCTION(modf); \ 2926 COMMON_INTERCEPT_FUNCTION(modff); \ 2927 COMMON_INTERCEPT_FUNCTION_LDBL(modfl); 2928 #else 2929 #define INIT_MODF 2930 #endif 2931 2932 #if SANITIZER_INTERCEPT_RECVMSG || SANITIZER_INTERCEPT_RECVMMSG 2933 static void write_msghdr(void *ctx, struct __sanitizer_msghdr *msg, 2934 SSIZE_T maxlen) { 2935 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, msg, sizeof(*msg)); 2936 if (msg->msg_name && msg->msg_namelen) 2937 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, msg->msg_name, msg->msg_namelen); 2938 if (msg->msg_iov && msg->msg_iovlen) 2939 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, msg->msg_iov, 2940 sizeof(*msg->msg_iov) * msg->msg_iovlen); 2941 write_iovec(ctx, msg->msg_iov, msg->msg_iovlen, maxlen); 2942 if (msg->msg_control && msg->msg_controllen) 2943 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, msg->msg_control, msg->msg_controllen); 2944 } 2945 #endif 2946 2947 #if SANITIZER_INTERCEPT_RECVMSG 2948 INTERCEPTOR(SSIZE_T, recvmsg, int fd, struct __sanitizer_msghdr *msg, 2949 int flags) { 2950 void *ctx; 2951 COMMON_INTERCEPTOR_ENTER(ctx, recvmsg, fd, msg, flags); 2952 // FIXME: under ASan the call below may write to freed memory and corrupt 2953 // its metadata. See 2954 // https://github.com/google/sanitizers/issues/321. 2955 SSIZE_T res = REAL(recvmsg)(fd, msg, flags); 2956 if (res >= 0) { 2957 if (fd >= 0) COMMON_INTERCEPTOR_FD_ACQUIRE(ctx, fd); 2958 if (msg) { 2959 write_msghdr(ctx, msg, res); 2960 COMMON_INTERCEPTOR_HANDLE_RECVMSG(ctx, msg); 2961 } 2962 } 2963 return res; 2964 } 2965 #define INIT_RECVMSG COMMON_INTERCEPT_FUNCTION(recvmsg); 2966 #else 2967 #define INIT_RECVMSG 2968 #endif 2969 2970 #if SANITIZER_INTERCEPT_RECVMMSG 2971 INTERCEPTOR(int, recvmmsg, int fd, struct __sanitizer_mmsghdr *msgvec, 2972 unsigned int vlen, int flags, void *timeout) { 2973 void *ctx; 2974 COMMON_INTERCEPTOR_ENTER(ctx, recvmmsg, fd, msgvec, vlen, flags, timeout); 2975 if (timeout) COMMON_INTERCEPTOR_READ_RANGE(ctx, timeout, struct_timespec_sz); 2976 int res = REAL(recvmmsg)(fd, msgvec, vlen, flags, timeout); 2977 if (res >= 0) { 2978 if (fd >= 0) COMMON_INTERCEPTOR_FD_ACQUIRE(ctx, fd); 2979 for (int i = 0; i < res; ++i) { 2980 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, &msgvec[i].msg_len, 2981 sizeof(msgvec[i].msg_len)); 2982 write_msghdr(ctx, &msgvec[i].msg_hdr, msgvec[i].msg_len); 2983 COMMON_INTERCEPTOR_HANDLE_RECVMSG(ctx, &msgvec[i].msg_hdr); 2984 } 2985 } 2986 return res; 2987 } 2988 #define INIT_RECVMMSG COMMON_INTERCEPT_FUNCTION(recvmmsg); 2989 #else 2990 #define INIT_RECVMMSG 2991 #endif 2992 2993 #if SANITIZER_INTERCEPT_SENDMSG || SANITIZER_INTERCEPT_SENDMMSG 2994 static void read_msghdr_control(void *ctx, void *control, uptr controllen) { 2995 const unsigned kCmsgDataOffset = 2996 RoundUpTo(sizeof(__sanitizer_cmsghdr), sizeof(uptr)); 2997 2998 char *p = (char *)control; 2999 char *const control_end = p + controllen; 3000 while (true) { 3001 if (p + sizeof(__sanitizer_cmsghdr) > control_end) break; 3002 __sanitizer_cmsghdr *cmsg = (__sanitizer_cmsghdr *)p; 3003 COMMON_INTERCEPTOR_READ_RANGE(ctx, &cmsg->cmsg_len, sizeof(cmsg->cmsg_len)); 3004 3005 if (p + RoundUpTo(cmsg->cmsg_len, sizeof(uptr)) > control_end) break; 3006 3007 COMMON_INTERCEPTOR_READ_RANGE(ctx, &cmsg->cmsg_level, 3008 sizeof(cmsg->cmsg_level)); 3009 COMMON_INTERCEPTOR_READ_RANGE(ctx, &cmsg->cmsg_type, 3010 sizeof(cmsg->cmsg_type)); 3011 3012 if (cmsg->cmsg_len > kCmsgDataOffset) { 3013 char *data = p + kCmsgDataOffset; 3014 unsigned data_len = cmsg->cmsg_len - kCmsgDataOffset; 3015 if (data_len > 0) COMMON_INTERCEPTOR_READ_RANGE(ctx, data, data_len); 3016 } 3017 3018 p += RoundUpTo(cmsg->cmsg_len, sizeof(uptr)); 3019 } 3020 } 3021 3022 static void read_msghdr(void *ctx, struct __sanitizer_msghdr *msg, 3023 SSIZE_T maxlen) { 3024 #define R(f) \ 3025 COMMON_INTERCEPTOR_READ_RANGE(ctx, &msg->msg_##f, sizeof(msg->msg_##f)) 3026 R(name); 3027 R(namelen); 3028 R(iov); 3029 R(iovlen); 3030 R(control); 3031 R(controllen); 3032 R(flags); 3033 #undef R 3034 if (msg->msg_name && msg->msg_namelen) 3035 COMMON_INTERCEPTOR_READ_RANGE(ctx, msg->msg_name, msg->msg_namelen); 3036 if (msg->msg_iov && msg->msg_iovlen) 3037 COMMON_INTERCEPTOR_READ_RANGE(ctx, msg->msg_iov, 3038 sizeof(*msg->msg_iov) * msg->msg_iovlen); 3039 read_iovec(ctx, msg->msg_iov, msg->msg_iovlen, maxlen); 3040 if (msg->msg_control && msg->msg_controllen) 3041 read_msghdr_control(ctx, msg->msg_control, msg->msg_controllen); 3042 } 3043 #endif 3044 3045 #if SANITIZER_INTERCEPT_SENDMSG 3046 INTERCEPTOR(SSIZE_T, sendmsg, int fd, struct __sanitizer_msghdr *msg, 3047 int flags) { 3048 void *ctx; 3049 COMMON_INTERCEPTOR_ENTER(ctx, sendmsg, fd, msg, flags); 3050 if (fd >= 0) { 3051 COMMON_INTERCEPTOR_FD_ACCESS(ctx, fd); 3052 COMMON_INTERCEPTOR_FD_RELEASE(ctx, fd); 3053 } 3054 SSIZE_T res = REAL(sendmsg)(fd, msg, flags); 3055 if (common_flags()->intercept_send && res >= 0 && msg) 3056 read_msghdr(ctx, msg, res); 3057 return res; 3058 } 3059 #define INIT_SENDMSG COMMON_INTERCEPT_FUNCTION(sendmsg); 3060 #else 3061 #define INIT_SENDMSG 3062 #endif 3063 3064 #if SANITIZER_INTERCEPT_SENDMMSG 3065 INTERCEPTOR(int, sendmmsg, int fd, struct __sanitizer_mmsghdr *msgvec, 3066 unsigned vlen, int flags) { 3067 void *ctx; 3068 COMMON_INTERCEPTOR_ENTER(ctx, sendmmsg, fd, msgvec, vlen, flags); 3069 if (fd >= 0) { 3070 COMMON_INTERCEPTOR_FD_ACCESS(ctx, fd); 3071 COMMON_INTERCEPTOR_FD_RELEASE(ctx, fd); 3072 } 3073 int res = REAL(sendmmsg)(fd, msgvec, vlen, flags); 3074 if (res >= 0 && msgvec) 3075 for (int i = 0; i < res; ++i) { 3076 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, &msgvec[i].msg_len, 3077 sizeof(msgvec[i].msg_len)); 3078 if (common_flags()->intercept_send) 3079 read_msghdr(ctx, &msgvec[i].msg_hdr, msgvec[i].msg_len); 3080 } 3081 return res; 3082 } 3083 #define INIT_SENDMMSG COMMON_INTERCEPT_FUNCTION(sendmmsg); 3084 #else 3085 #define INIT_SENDMMSG 3086 #endif 3087 3088 #if SANITIZER_INTERCEPT_GETPEERNAME 3089 INTERCEPTOR(int, getpeername, int sockfd, void *addr, unsigned *addrlen) { 3090 void *ctx; 3091 COMMON_INTERCEPTOR_ENTER(ctx, getpeername, sockfd, addr, addrlen); 3092 unsigned addr_sz; 3093 if (addrlen) addr_sz = *addrlen; 3094 // FIXME: under ASan the call below may write to freed memory and corrupt 3095 // its metadata. See 3096 // https://github.com/google/sanitizers/issues/321. 3097 int res = REAL(getpeername)(sockfd, addr, addrlen); 3098 if (!res && addr && addrlen) 3099 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, addr, Min(addr_sz, *addrlen)); 3100 return res; 3101 } 3102 #define INIT_GETPEERNAME COMMON_INTERCEPT_FUNCTION(getpeername); 3103 #else 3104 #define INIT_GETPEERNAME 3105 #endif 3106 3107 #if SANITIZER_INTERCEPT_SYSINFO 3108 INTERCEPTOR(int, sysinfo, void *info) { 3109 void *ctx; 3110 // FIXME: under ASan the call below may write to freed memory and corrupt 3111 // its metadata. See 3112 // https://github.com/google/sanitizers/issues/321. 3113 COMMON_INTERCEPTOR_ENTER(ctx, sysinfo, info); 3114 int res = REAL(sysinfo)(info); 3115 if (!res && info) 3116 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, info, struct_sysinfo_sz); 3117 return res; 3118 } 3119 #define INIT_SYSINFO COMMON_INTERCEPT_FUNCTION(sysinfo); 3120 #else 3121 #define INIT_SYSINFO 3122 #endif 3123 3124 #if SANITIZER_INTERCEPT_READDIR 3125 INTERCEPTOR(__sanitizer_dirent *, opendir, const char *path) { 3126 void *ctx; 3127 COMMON_INTERCEPTOR_ENTER(ctx, opendir, path); 3128 COMMON_INTERCEPTOR_READ_RANGE(ctx, path, REAL(strlen)(path) + 1); 3129 __sanitizer_dirent *res = REAL(opendir)(path); 3130 if (res) 3131 COMMON_INTERCEPTOR_DIR_ACQUIRE(ctx, path); 3132 return res; 3133 } 3134 3135 INTERCEPTOR(__sanitizer_dirent *, readdir, void *dirp) { 3136 void *ctx; 3137 COMMON_INTERCEPTOR_ENTER(ctx, readdir, dirp); 3138 // FIXME: under ASan the call below may write to freed memory and corrupt 3139 // its metadata. See 3140 // https://github.com/google/sanitizers/issues/321. 3141 __sanitizer_dirent *res = REAL(readdir)(dirp); 3142 if (res) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, res, res->d_reclen); 3143 return res; 3144 } 3145 3146 INTERCEPTOR(int, readdir_r, void *dirp, __sanitizer_dirent *entry, 3147 __sanitizer_dirent **result) { 3148 void *ctx; 3149 COMMON_INTERCEPTOR_ENTER(ctx, readdir_r, dirp, entry, result); 3150 // FIXME: under ASan the call below may write to freed memory and corrupt 3151 // its metadata. See 3152 // https://github.com/google/sanitizers/issues/321. 3153 int res = REAL(readdir_r)(dirp, entry, result); 3154 if (!res) { 3155 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, result, sizeof(*result)); 3156 if (*result) 3157 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, *result, (*result)->d_reclen); 3158 } 3159 return res; 3160 } 3161 3162 #define INIT_READDIR \ 3163 COMMON_INTERCEPT_FUNCTION(opendir); \ 3164 COMMON_INTERCEPT_FUNCTION(readdir); \ 3165 COMMON_INTERCEPT_FUNCTION(readdir_r); 3166 #else 3167 #define INIT_READDIR 3168 #endif 3169 3170 #if SANITIZER_INTERCEPT_READDIR64 3171 INTERCEPTOR(__sanitizer_dirent64 *, readdir64, void *dirp) { 3172 void *ctx; 3173 COMMON_INTERCEPTOR_ENTER(ctx, readdir64, dirp); 3174 // FIXME: under ASan the call below may write to freed memory and corrupt 3175 // its metadata. See 3176 // https://github.com/google/sanitizers/issues/321. 3177 __sanitizer_dirent64 *res = REAL(readdir64)(dirp); 3178 if (res) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, res, res->d_reclen); 3179 return res; 3180 } 3181 3182 INTERCEPTOR(int, readdir64_r, void *dirp, __sanitizer_dirent64 *entry, 3183 __sanitizer_dirent64 **result) { 3184 void *ctx; 3185 COMMON_INTERCEPTOR_ENTER(ctx, readdir64_r, dirp, entry, result); 3186 // FIXME: under ASan the call below may write to freed memory and corrupt 3187 // its metadata. See 3188 // https://github.com/google/sanitizers/issues/321. 3189 int res = REAL(readdir64_r)(dirp, entry, result); 3190 if (!res) { 3191 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, result, sizeof(*result)); 3192 if (*result) 3193 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, *result, (*result)->d_reclen); 3194 } 3195 return res; 3196 } 3197 #define INIT_READDIR64 \ 3198 COMMON_INTERCEPT_FUNCTION(readdir64); \ 3199 COMMON_INTERCEPT_FUNCTION(readdir64_r); 3200 #else 3201 #define INIT_READDIR64 3202 #endif 3203 3204 #if SANITIZER_INTERCEPT_PTRACE 3205 INTERCEPTOR(uptr, ptrace, int request, int pid, void *addr, void *data) { 3206 void *ctx; 3207 COMMON_INTERCEPTOR_ENTER(ctx, ptrace, request, pid, addr, data); 3208 __sanitizer_iovec local_iovec; 3209 3210 if (data) { 3211 if (request == ptrace_setregs) 3212 COMMON_INTERCEPTOR_READ_RANGE(ctx, data, struct_user_regs_struct_sz); 3213 else if (request == ptrace_setfpregs) 3214 COMMON_INTERCEPTOR_READ_RANGE(ctx, data, struct_user_fpregs_struct_sz); 3215 else if (request == ptrace_setfpxregs) 3216 COMMON_INTERCEPTOR_READ_RANGE(ctx, data, struct_user_fpxregs_struct_sz); 3217 else if (request == ptrace_setvfpregs) 3218 COMMON_INTERCEPTOR_READ_RANGE(ctx, data, struct_user_vfpregs_struct_sz); 3219 else if (request == ptrace_setsiginfo) 3220 COMMON_INTERCEPTOR_READ_RANGE(ctx, data, siginfo_t_sz); 3221 // Some kernel might zero the iovec::iov_base in case of invalid 3222 // write access. In this case copy the invalid address for further 3223 // inspection. 3224 else if (request == ptrace_setregset || request == ptrace_getregset) { 3225 __sanitizer_iovec *iovec = (__sanitizer_iovec*)data; 3226 COMMON_INTERCEPTOR_READ_RANGE(ctx, iovec, sizeof(*iovec)); 3227 local_iovec = *iovec; 3228 if (request == ptrace_setregset) 3229 COMMON_INTERCEPTOR_READ_RANGE(ctx, iovec->iov_base, iovec->iov_len); 3230 } 3231 } 3232 3233 // FIXME: under ASan the call below may write to freed memory and corrupt 3234 // its metadata. See 3235 // https://github.com/google/sanitizers/issues/321. 3236 uptr res = REAL(ptrace)(request, pid, addr, data); 3237 3238 if (!res && data) { 3239 // Note that PEEK* requests assign different meaning to the return value. 3240 // This function does not handle them (nor does it need to). 3241 if (request == ptrace_getregs) 3242 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, data, struct_user_regs_struct_sz); 3243 else if (request == ptrace_getfpregs) 3244 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, data, struct_user_fpregs_struct_sz); 3245 else if (request == ptrace_getfpxregs) 3246 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, data, struct_user_fpxregs_struct_sz); 3247 else if (request == ptrace_getvfpregs) 3248 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, data, struct_user_vfpregs_struct_sz); 3249 else if (request == ptrace_getsiginfo) 3250 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, data, siginfo_t_sz); 3251 else if (request == ptrace_geteventmsg) 3252 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, data, sizeof(unsigned long)); 3253 else if (request == ptrace_getregset) { 3254 __sanitizer_iovec *iovec = (__sanitizer_iovec*)data; 3255 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, iovec, sizeof(*iovec)); 3256 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, local_iovec.iov_base, 3257 local_iovec.iov_len); 3258 } 3259 } 3260 return res; 3261 } 3262 3263 #define INIT_PTRACE COMMON_INTERCEPT_FUNCTION(ptrace); 3264 #else 3265 #define INIT_PTRACE 3266 #endif 3267 3268 #if SANITIZER_INTERCEPT_SETLOCALE 3269 static void unpoison_ctype_arrays(void *ctx) { 3270 #if SANITIZER_NETBSD 3271 // These arrays contain 256 regular elements in unsigned char range + 1 EOF 3272 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, _ctype_tab_, 257 * sizeof(short)); 3273 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, _toupper_tab_, 257 * sizeof(short)); 3274 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, _tolower_tab_, 257 * sizeof(short)); 3275 #endif 3276 } 3277 3278 INTERCEPTOR(char *, setlocale, int category, char *locale) { 3279 void *ctx; 3280 COMMON_INTERCEPTOR_ENTER(ctx, setlocale, category, locale); 3281 if (locale) 3282 COMMON_INTERCEPTOR_READ_RANGE(ctx, locale, REAL(strlen)(locale) + 1); 3283 char *res = REAL(setlocale)(category, locale); 3284 if (res) { 3285 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, res, REAL(strlen)(res) + 1); 3286 unpoison_ctype_arrays(ctx); 3287 } 3288 return res; 3289 } 3290 3291 #define INIT_SETLOCALE COMMON_INTERCEPT_FUNCTION(setlocale); 3292 #else 3293 #define INIT_SETLOCALE 3294 #endif 3295 3296 #if SANITIZER_INTERCEPT_GETCWD 3297 INTERCEPTOR(char *, getcwd, char *buf, SIZE_T size) { 3298 void *ctx; 3299 COMMON_INTERCEPTOR_ENTER(ctx, getcwd, buf, size); 3300 // FIXME: under ASan the call below may write to freed memory and corrupt 3301 // its metadata. See 3302 // https://github.com/google/sanitizers/issues/321. 3303 char *res = REAL(getcwd)(buf, size); 3304 if (res) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, res, REAL(strlen)(res) + 1); 3305 return res; 3306 } 3307 #define INIT_GETCWD COMMON_INTERCEPT_FUNCTION(getcwd); 3308 #else 3309 #define INIT_GETCWD 3310 #endif 3311 3312 #if SANITIZER_INTERCEPT_GET_CURRENT_DIR_NAME 3313 INTERCEPTOR(char *, get_current_dir_name, int fake) { 3314 void *ctx; 3315 COMMON_INTERCEPTOR_ENTER(ctx, get_current_dir_name, fake); 3316 // FIXME: under ASan the call below may write to freed memory and corrupt 3317 // its metadata. See 3318 // https://github.com/google/sanitizers/issues/321. 3319 char *res = REAL(get_current_dir_name)(fake); 3320 if (res) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, res, REAL(strlen)(res) + 1); 3321 return res; 3322 } 3323 3324 #define INIT_GET_CURRENT_DIR_NAME \ 3325 COMMON_INTERCEPT_FUNCTION(get_current_dir_name); 3326 #else 3327 #define INIT_GET_CURRENT_DIR_NAME 3328 #endif 3329 3330 UNUSED static inline void FixRealStrtolEndptr(const char *nptr, char **endptr) { 3331 CHECK(endptr); 3332 if (nptr == *endptr) { 3333 // No digits were found at strtol call, we need to find out the last 3334 // symbol accessed by strtoll on our own. 3335 // We get this symbol by skipping leading blanks and optional +/- sign. 3336 while (IsSpace(*nptr)) nptr++; 3337 if (*nptr == '+' || *nptr == '-') nptr++; 3338 *endptr = const_cast<char *>(nptr); 3339 } 3340 CHECK(*endptr >= nptr); 3341 } 3342 3343 UNUSED static inline void StrtolFixAndCheck(void *ctx, const char *nptr, 3344 char **endptr, char *real_endptr, int base) { 3345 if (endptr) { 3346 *endptr = real_endptr; 3347 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, endptr, sizeof(*endptr)); 3348 } 3349 // If base has unsupported value, strtol can exit with EINVAL 3350 // without reading any characters. So do additional checks only 3351 // if base is valid. 3352 bool is_valid_base = (base == 0) || (2 <= base && base <= 36); 3353 if (is_valid_base) { 3354 FixRealStrtolEndptr(nptr, &real_endptr); 3355 } 3356 COMMON_INTERCEPTOR_READ_STRING(ctx, nptr, is_valid_base ? 3357 (real_endptr - nptr) + 1 : 0); 3358 } 3359 3360 3361 #if SANITIZER_INTERCEPT_STRTOIMAX 3362 INTERCEPTOR(INTMAX_T, strtoimax, const char *nptr, char **endptr, int base) { 3363 void *ctx; 3364 COMMON_INTERCEPTOR_ENTER(ctx, strtoimax, nptr, endptr, base); 3365 // FIXME: under ASan the call below may write to freed memory and corrupt 3366 // its metadata. See 3367 // https://github.com/google/sanitizers/issues/321. 3368 char *real_endptr; 3369 INTMAX_T res = REAL(strtoimax)(nptr, &real_endptr, base); 3370 StrtolFixAndCheck(ctx, nptr, endptr, real_endptr, base); 3371 return res; 3372 } 3373 3374 INTERCEPTOR(UINTMAX_T, strtoumax, const char *nptr, char **endptr, int base) { 3375 void *ctx; 3376 COMMON_INTERCEPTOR_ENTER(ctx, strtoumax, nptr, endptr, base); 3377 // FIXME: under ASan the call below may write to freed memory and corrupt 3378 // its metadata. See 3379 // https://github.com/google/sanitizers/issues/321. 3380 char *real_endptr; 3381 UINTMAX_T res = REAL(strtoumax)(nptr, &real_endptr, base); 3382 StrtolFixAndCheck(ctx, nptr, endptr, real_endptr, base); 3383 return res; 3384 } 3385 3386 #define INIT_STRTOIMAX \ 3387 COMMON_INTERCEPT_FUNCTION(strtoimax); \ 3388 COMMON_INTERCEPT_FUNCTION(strtoumax); 3389 #else 3390 #define INIT_STRTOIMAX 3391 #endif 3392 3393 #if SANITIZER_INTERCEPT_MBSTOWCS 3394 INTERCEPTOR(SIZE_T, mbstowcs, wchar_t *dest, const char *src, SIZE_T len) { 3395 void *ctx; 3396 COMMON_INTERCEPTOR_ENTER(ctx, mbstowcs, dest, src, len); 3397 // FIXME: under ASan the call below may write to freed memory and corrupt 3398 // its metadata. See 3399 // https://github.com/google/sanitizers/issues/321. 3400 SIZE_T res = REAL(mbstowcs)(dest, src, len); 3401 if (res != (SIZE_T) - 1 && dest) { 3402 SIZE_T write_cnt = res + (res < len); 3403 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, dest, write_cnt * sizeof(wchar_t)); 3404 } 3405 return res; 3406 } 3407 3408 INTERCEPTOR(SIZE_T, mbsrtowcs, wchar_t *dest, const char **src, SIZE_T len, 3409 void *ps) { 3410 void *ctx; 3411 COMMON_INTERCEPTOR_ENTER(ctx, mbsrtowcs, dest, src, len, ps); 3412 if (src) COMMON_INTERCEPTOR_READ_RANGE(ctx, src, sizeof(*src)); 3413 if (ps) COMMON_INTERCEPTOR_READ_RANGE(ctx, ps, mbstate_t_sz); 3414 // FIXME: under ASan the call below may write to freed memory and corrupt 3415 // its metadata. See 3416 // https://github.com/google/sanitizers/issues/321. 3417 SIZE_T res = REAL(mbsrtowcs)(dest, src, len, ps); 3418 if (res != (SIZE_T)(-1) && dest && src) { 3419 // This function, and several others, may or may not write the terminating 3420 // \0 character. They write it iff they clear *src. 3421 SIZE_T write_cnt = res + !*src; 3422 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, dest, write_cnt * sizeof(wchar_t)); 3423 } 3424 return res; 3425 } 3426 3427 #define INIT_MBSTOWCS \ 3428 COMMON_INTERCEPT_FUNCTION(mbstowcs); \ 3429 COMMON_INTERCEPT_FUNCTION(mbsrtowcs); 3430 #else 3431 #define INIT_MBSTOWCS 3432 #endif 3433 3434 #if SANITIZER_INTERCEPT_MBSNRTOWCS 3435 INTERCEPTOR(SIZE_T, mbsnrtowcs, wchar_t *dest, const char **src, SIZE_T nms, 3436 SIZE_T len, void *ps) { 3437 void *ctx; 3438 COMMON_INTERCEPTOR_ENTER(ctx, mbsnrtowcs, dest, src, nms, len, ps); 3439 if (src) { 3440 COMMON_INTERCEPTOR_READ_RANGE(ctx, src, sizeof(*src)); 3441 if (nms) COMMON_INTERCEPTOR_READ_RANGE(ctx, *src, nms); 3442 } 3443 if (ps) COMMON_INTERCEPTOR_READ_RANGE(ctx, ps, mbstate_t_sz); 3444 // FIXME: under ASan the call below may write to freed memory and corrupt 3445 // its metadata. See 3446 // https://github.com/google/sanitizers/issues/321. 3447 SIZE_T res = REAL(mbsnrtowcs)(dest, src, nms, len, ps); 3448 if (res != (SIZE_T)(-1) && dest && src) { 3449 SIZE_T write_cnt = res + !*src; 3450 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, dest, write_cnt * sizeof(wchar_t)); 3451 } 3452 return res; 3453 } 3454 3455 #define INIT_MBSNRTOWCS COMMON_INTERCEPT_FUNCTION(mbsnrtowcs); 3456 #else 3457 #define INIT_MBSNRTOWCS 3458 #endif 3459 3460 #if SANITIZER_INTERCEPT_WCSTOMBS 3461 INTERCEPTOR(SIZE_T, wcstombs, char *dest, const wchar_t *src, SIZE_T len) { 3462 void *ctx; 3463 COMMON_INTERCEPTOR_ENTER(ctx, wcstombs, dest, src, len); 3464 // FIXME: under ASan the call below may write to freed memory and corrupt 3465 // its metadata. See 3466 // https://github.com/google/sanitizers/issues/321. 3467 SIZE_T res = REAL(wcstombs)(dest, src, len); 3468 if (res != (SIZE_T) - 1 && dest) { 3469 SIZE_T write_cnt = res + (res < len); 3470 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, dest, write_cnt); 3471 } 3472 return res; 3473 } 3474 3475 INTERCEPTOR(SIZE_T, wcsrtombs, char *dest, const wchar_t **src, SIZE_T len, 3476 void *ps) { 3477 void *ctx; 3478 COMMON_INTERCEPTOR_ENTER(ctx, wcsrtombs, dest, src, len, ps); 3479 if (src) COMMON_INTERCEPTOR_READ_RANGE(ctx, src, sizeof(*src)); 3480 if (ps) COMMON_INTERCEPTOR_READ_RANGE(ctx, ps, mbstate_t_sz); 3481 // FIXME: under ASan the call below may write to freed memory and corrupt 3482 // its metadata. See 3483 // https://github.com/google/sanitizers/issues/321. 3484 SIZE_T res = REAL(wcsrtombs)(dest, src, len, ps); 3485 if (res != (SIZE_T) - 1 && dest && src) { 3486 SIZE_T write_cnt = res + !*src; 3487 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, dest, write_cnt); 3488 } 3489 return res; 3490 } 3491 3492 #define INIT_WCSTOMBS \ 3493 COMMON_INTERCEPT_FUNCTION(wcstombs); \ 3494 COMMON_INTERCEPT_FUNCTION(wcsrtombs); 3495 #else 3496 #define INIT_WCSTOMBS 3497 #endif 3498 3499 #if SANITIZER_INTERCEPT_WCSNRTOMBS 3500 INTERCEPTOR(SIZE_T, wcsnrtombs, char *dest, const wchar_t **src, SIZE_T nms, 3501 SIZE_T len, void *ps) { 3502 void *ctx; 3503 COMMON_INTERCEPTOR_ENTER(ctx, wcsnrtombs, dest, src, nms, len, ps); 3504 if (src) { 3505 COMMON_INTERCEPTOR_READ_RANGE(ctx, src, sizeof(*src)); 3506 if (nms) COMMON_INTERCEPTOR_READ_RANGE(ctx, *src, nms); 3507 } 3508 if (ps) COMMON_INTERCEPTOR_READ_RANGE(ctx, ps, mbstate_t_sz); 3509 // FIXME: under ASan the call below may write to freed memory and corrupt 3510 // its metadata. See 3511 // https://github.com/google/sanitizers/issues/321. 3512 SIZE_T res = REAL(wcsnrtombs)(dest, src, nms, len, ps); 3513 if (res != ((SIZE_T)-1) && dest && src) { 3514 SIZE_T write_cnt = res + !*src; 3515 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, dest, write_cnt); 3516 } 3517 return res; 3518 } 3519 3520 #define INIT_WCSNRTOMBS COMMON_INTERCEPT_FUNCTION(wcsnrtombs); 3521 #else 3522 #define INIT_WCSNRTOMBS 3523 #endif 3524 3525 3526 #if SANITIZER_INTERCEPT_WCRTOMB 3527 INTERCEPTOR(SIZE_T, wcrtomb, char *dest, wchar_t src, void *ps) { 3528 void *ctx; 3529 COMMON_INTERCEPTOR_ENTER(ctx, wcrtomb, dest, src, ps); 3530 if (ps) COMMON_INTERCEPTOR_READ_RANGE(ctx, ps, mbstate_t_sz); 3531 // FIXME: under ASan the call below may write to freed memory and corrupt 3532 // its metadata. See 3533 // https://github.com/google/sanitizers/issues/321. 3534 SIZE_T res = REAL(wcrtomb)(dest, src, ps); 3535 if (res != ((SIZE_T)-1) && dest) { 3536 SIZE_T write_cnt = res; 3537 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, dest, write_cnt); 3538 } 3539 return res; 3540 } 3541 3542 #define INIT_WCRTOMB COMMON_INTERCEPT_FUNCTION(wcrtomb); 3543 #else 3544 #define INIT_WCRTOMB 3545 #endif 3546 3547 #if SANITIZER_INTERCEPT_TCGETATTR 3548 INTERCEPTOR(int, tcgetattr, int fd, void *termios_p) { 3549 void *ctx; 3550 COMMON_INTERCEPTOR_ENTER(ctx, tcgetattr, fd, termios_p); 3551 // FIXME: under ASan the call below may write to freed memory and corrupt 3552 // its metadata. See 3553 // https://github.com/google/sanitizers/issues/321. 3554 int res = REAL(tcgetattr)(fd, termios_p); 3555 if (!res && termios_p) 3556 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, termios_p, struct_termios_sz); 3557 return res; 3558 } 3559 3560 #define INIT_TCGETATTR COMMON_INTERCEPT_FUNCTION(tcgetattr); 3561 #else 3562 #define INIT_TCGETATTR 3563 #endif 3564 3565 #if SANITIZER_INTERCEPT_REALPATH 3566 INTERCEPTOR(char *, realpath, const char *path, char *resolved_path) { 3567 void *ctx; 3568 COMMON_INTERCEPTOR_ENTER(ctx, realpath, path, resolved_path); 3569 if (path) COMMON_INTERCEPTOR_READ_RANGE(ctx, path, REAL(strlen)(path) + 1); 3570 3571 // Workaround a bug in glibc where dlsym(RTLD_NEXT, ...) returns the oldest 3572 // version of a versioned symbol. For realpath(), this gives us something 3573 // (called __old_realpath) that does not handle NULL in the second argument. 3574 // Handle it as part of the interceptor. 3575 char *allocated_path = nullptr; 3576 if (!resolved_path) 3577 allocated_path = resolved_path = (char *)WRAP(malloc)(path_max + 1); 3578 3579 char *res = REAL(realpath)(path, resolved_path); 3580 if (allocated_path && !res) WRAP(free)(allocated_path); 3581 if (res) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, res, REAL(strlen)(res) + 1); 3582 return res; 3583 } 3584 #define INIT_REALPATH COMMON_INTERCEPT_FUNCTION(realpath); 3585 #else 3586 #define INIT_REALPATH 3587 #endif 3588 3589 #if SANITIZER_INTERCEPT_CANONICALIZE_FILE_NAME 3590 INTERCEPTOR(char *, canonicalize_file_name, const char *path) { 3591 void *ctx; 3592 COMMON_INTERCEPTOR_ENTER(ctx, canonicalize_file_name, path); 3593 if (path) COMMON_INTERCEPTOR_READ_RANGE(ctx, path, REAL(strlen)(path) + 1); 3594 char *res = REAL(canonicalize_file_name)(path); 3595 if (res) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, res, REAL(strlen)(res) + 1); 3596 return res; 3597 } 3598 #define INIT_CANONICALIZE_FILE_NAME \ 3599 COMMON_INTERCEPT_FUNCTION(canonicalize_file_name); 3600 #else 3601 #define INIT_CANONICALIZE_FILE_NAME 3602 #endif 3603 3604 #if SANITIZER_INTERCEPT_CONFSTR 3605 INTERCEPTOR(SIZE_T, confstr, int name, char *buf, SIZE_T len) { 3606 void *ctx; 3607 COMMON_INTERCEPTOR_ENTER(ctx, confstr, name, buf, len); 3608 // FIXME: under ASan the call below may write to freed memory and corrupt 3609 // its metadata. See 3610 // https://github.com/google/sanitizers/issues/321. 3611 SIZE_T res = REAL(confstr)(name, buf, len); 3612 if (buf && res) 3613 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, buf, res < len ? res : len); 3614 return res; 3615 } 3616 #define INIT_CONFSTR COMMON_INTERCEPT_FUNCTION(confstr); 3617 #else 3618 #define INIT_CONFSTR 3619 #endif 3620 3621 #if SANITIZER_INTERCEPT_SCHED_GETAFFINITY 3622 INTERCEPTOR(int, sched_getaffinity, int pid, SIZE_T cpusetsize, void *mask) { 3623 void *ctx; 3624 COMMON_INTERCEPTOR_ENTER(ctx, sched_getaffinity, pid, cpusetsize, mask); 3625 // FIXME: under ASan the call below may write to freed memory and corrupt 3626 // its metadata. See 3627 // https://github.com/google/sanitizers/issues/321. 3628 int res = REAL(sched_getaffinity)(pid, cpusetsize, mask); 3629 if (mask && !res) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, mask, cpusetsize); 3630 return res; 3631 } 3632 #define INIT_SCHED_GETAFFINITY COMMON_INTERCEPT_FUNCTION(sched_getaffinity); 3633 #else 3634 #define INIT_SCHED_GETAFFINITY 3635 #endif 3636 3637 #if SANITIZER_INTERCEPT_SCHED_GETPARAM 3638 INTERCEPTOR(int, sched_getparam, int pid, void *param) { 3639 void *ctx; 3640 COMMON_INTERCEPTOR_ENTER(ctx, sched_getparam, pid, param); 3641 int res = REAL(sched_getparam)(pid, param); 3642 if (!res) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, param, struct_sched_param_sz); 3643 return res; 3644 } 3645 #define INIT_SCHED_GETPARAM COMMON_INTERCEPT_FUNCTION(sched_getparam); 3646 #else 3647 #define INIT_SCHED_GETPARAM 3648 #endif 3649 3650 #if SANITIZER_INTERCEPT_STRERROR 3651 INTERCEPTOR(char *, strerror, int errnum) { 3652 void *ctx; 3653 COMMON_INTERCEPTOR_ENTER(ctx, strerror, errnum); 3654 char *res = REAL(strerror)(errnum); 3655 if (res) COMMON_INTERCEPTOR_INITIALIZE_RANGE(res, REAL(strlen)(res) + 1); 3656 return res; 3657 } 3658 #define INIT_STRERROR COMMON_INTERCEPT_FUNCTION(strerror); 3659 #else 3660 #define INIT_STRERROR 3661 #endif 3662 3663 #if SANITIZER_INTERCEPT_STRERROR_R 3664 // There are 2 versions of strerror_r: 3665 // * POSIX version returns 0 on success, negative error code on failure, 3666 // writes message to buf. 3667 // * GNU version returns message pointer, which points to either buf or some 3668 // static storage. 3669 #if ((_POSIX_C_SOURCE >= 200112L || _XOPEN_SOURCE >= 600) && !_GNU_SOURCE) || \ 3670 SANITIZER_MAC || SANITIZER_ANDROID || SANITIZER_NETBSD || \ 3671 SANITIZER_FREEBSD || SANITIZER_OPENBSD 3672 // POSIX version. Spec is not clear on whether buf is NULL-terminated. 3673 // At least on OSX, buf contents are valid even when the call fails. 3674 INTERCEPTOR(int, strerror_r, int errnum, char *buf, SIZE_T buflen) { 3675 void *ctx; 3676 COMMON_INTERCEPTOR_ENTER(ctx, strerror_r, errnum, buf, buflen); 3677 // FIXME: under ASan the call below may write to freed memory and corrupt 3678 // its metadata. See 3679 // https://github.com/google/sanitizers/issues/321. 3680 int res = REAL(strerror_r)(errnum, buf, buflen); 3681 3682 SIZE_T sz = internal_strnlen(buf, buflen); 3683 if (sz < buflen) ++sz; 3684 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, buf, sz); 3685 return res; 3686 } 3687 #else 3688 // GNU version. 3689 INTERCEPTOR(char *, strerror_r, int errnum, char *buf, SIZE_T buflen) { 3690 void *ctx; 3691 COMMON_INTERCEPTOR_ENTER(ctx, strerror_r, errnum, buf, buflen); 3692 // FIXME: under ASan the call below may write to freed memory and corrupt 3693 // its metadata. See 3694 // https://github.com/google/sanitizers/issues/321. 3695 char *res = REAL(strerror_r)(errnum, buf, buflen); 3696 if (res == buf) 3697 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, res, REAL(strlen)(res) + 1); 3698 else 3699 COMMON_INTERCEPTOR_INITIALIZE_RANGE(res, REAL(strlen)(res) + 1); 3700 return res; 3701 } 3702 #endif //(_POSIX_C_SOURCE >= 200112L || _XOPEN_SOURCE >= 600) && !_GNU_SOURCE || 3703 //SANITIZER_MAC 3704 #define INIT_STRERROR_R COMMON_INTERCEPT_FUNCTION(strerror_r); 3705 #else 3706 #define INIT_STRERROR_R 3707 #endif 3708 3709 #if SANITIZER_INTERCEPT_XPG_STRERROR_R 3710 INTERCEPTOR(int, __xpg_strerror_r, int errnum, char *buf, SIZE_T buflen) { 3711 void *ctx; 3712 COMMON_INTERCEPTOR_ENTER(ctx, __xpg_strerror_r, errnum, buf, buflen); 3713 // FIXME: under ASan the call below may write to freed memory and corrupt 3714 // its metadata. See 3715 // https://github.com/google/sanitizers/issues/321. 3716 int res = REAL(__xpg_strerror_r)(errnum, buf, buflen); 3717 // This version always returns a null-terminated string. 3718 if (buf && buflen) 3719 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, buf, REAL(strlen)(buf) + 1); 3720 return res; 3721 } 3722 #define INIT_XPG_STRERROR_R COMMON_INTERCEPT_FUNCTION(__xpg_strerror_r); 3723 #else 3724 #define INIT_XPG_STRERROR_R 3725 #endif 3726 3727 #if SANITIZER_INTERCEPT_SCANDIR 3728 typedef int (*scandir_filter_f)(const struct __sanitizer_dirent *); 3729 typedef int (*scandir_compar_f)(const struct __sanitizer_dirent **, 3730 const struct __sanitizer_dirent **); 3731 3732 static THREADLOCAL scandir_filter_f scandir_filter; 3733 static THREADLOCAL scandir_compar_f scandir_compar; 3734 3735 static int wrapped_scandir_filter(const struct __sanitizer_dirent *dir) { 3736 COMMON_INTERCEPTOR_UNPOISON_PARAM(1); 3737 COMMON_INTERCEPTOR_INITIALIZE_RANGE(dir, dir->d_reclen); 3738 return scandir_filter(dir); 3739 } 3740 3741 static int wrapped_scandir_compar(const struct __sanitizer_dirent **a, 3742 const struct __sanitizer_dirent **b) { 3743 COMMON_INTERCEPTOR_UNPOISON_PARAM(2); 3744 COMMON_INTERCEPTOR_INITIALIZE_RANGE(a, sizeof(*a)); 3745 COMMON_INTERCEPTOR_INITIALIZE_RANGE(*a, (*a)->d_reclen); 3746 COMMON_INTERCEPTOR_INITIALIZE_RANGE(b, sizeof(*b)); 3747 COMMON_INTERCEPTOR_INITIALIZE_RANGE(*b, (*b)->d_reclen); 3748 return scandir_compar(a, b); 3749 } 3750 3751 INTERCEPTOR(int, scandir, char *dirp, __sanitizer_dirent ***namelist, 3752 scandir_filter_f filter, scandir_compar_f compar) { 3753 void *ctx; 3754 COMMON_INTERCEPTOR_ENTER(ctx, scandir, dirp, namelist, filter, compar); 3755 if (dirp) COMMON_INTERCEPTOR_READ_RANGE(ctx, dirp, REAL(strlen)(dirp) + 1); 3756 scandir_filter = filter; 3757 scandir_compar = compar; 3758 // FIXME: under ASan the call below may write to freed memory and corrupt 3759 // its metadata. See 3760 // https://github.com/google/sanitizers/issues/321. 3761 int res = REAL(scandir)(dirp, namelist, 3762 filter ? wrapped_scandir_filter : nullptr, 3763 compar ? wrapped_scandir_compar : nullptr); 3764 scandir_filter = nullptr; 3765 scandir_compar = nullptr; 3766 if (namelist && res > 0) { 3767 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, namelist, sizeof(*namelist)); 3768 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, *namelist, sizeof(**namelist) * res); 3769 for (int i = 0; i < res; ++i) 3770 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, (*namelist)[i], 3771 (*namelist)[i]->d_reclen); 3772 } 3773 return res; 3774 } 3775 #define INIT_SCANDIR COMMON_INTERCEPT_FUNCTION(scandir); 3776 #else 3777 #define INIT_SCANDIR 3778 #endif 3779 3780 #if SANITIZER_INTERCEPT_SCANDIR64 3781 typedef int (*scandir64_filter_f)(const struct __sanitizer_dirent64 *); 3782 typedef int (*scandir64_compar_f)(const struct __sanitizer_dirent64 **, 3783 const struct __sanitizer_dirent64 **); 3784 3785 static THREADLOCAL scandir64_filter_f scandir64_filter; 3786 static THREADLOCAL scandir64_compar_f scandir64_compar; 3787 3788 static int wrapped_scandir64_filter(const struct __sanitizer_dirent64 *dir) { 3789 COMMON_INTERCEPTOR_UNPOISON_PARAM(1); 3790 COMMON_INTERCEPTOR_INITIALIZE_RANGE(dir, dir->d_reclen); 3791 return scandir64_filter(dir); 3792 } 3793 3794 static int wrapped_scandir64_compar(const struct __sanitizer_dirent64 **a, 3795 const struct __sanitizer_dirent64 **b) { 3796 COMMON_INTERCEPTOR_UNPOISON_PARAM(2); 3797 COMMON_INTERCEPTOR_INITIALIZE_RANGE(a, sizeof(*a)); 3798 COMMON_INTERCEPTOR_INITIALIZE_RANGE(*a, (*a)->d_reclen); 3799 COMMON_INTERCEPTOR_INITIALIZE_RANGE(b, sizeof(*b)); 3800 COMMON_INTERCEPTOR_INITIALIZE_RANGE(*b, (*b)->d_reclen); 3801 return scandir64_compar(a, b); 3802 } 3803 3804 INTERCEPTOR(int, scandir64, char *dirp, __sanitizer_dirent64 ***namelist, 3805 scandir64_filter_f filter, scandir64_compar_f compar) { 3806 void *ctx; 3807 COMMON_INTERCEPTOR_ENTER(ctx, scandir64, dirp, namelist, filter, compar); 3808 if (dirp) COMMON_INTERCEPTOR_READ_RANGE(ctx, dirp, REAL(strlen)(dirp) + 1); 3809 scandir64_filter = filter; 3810 scandir64_compar = compar; 3811 // FIXME: under ASan the call below may write to freed memory and corrupt 3812 // its metadata. See 3813 // https://github.com/google/sanitizers/issues/321. 3814 int res = 3815 REAL(scandir64)(dirp, namelist, 3816 filter ? wrapped_scandir64_filter : nullptr, 3817 compar ? wrapped_scandir64_compar : nullptr); 3818 scandir64_filter = nullptr; 3819 scandir64_compar = nullptr; 3820 if (namelist && res > 0) { 3821 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, namelist, sizeof(*namelist)); 3822 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, *namelist, sizeof(**namelist) * res); 3823 for (int i = 0; i < res; ++i) 3824 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, (*namelist)[i], 3825 (*namelist)[i]->d_reclen); 3826 } 3827 return res; 3828 } 3829 #define INIT_SCANDIR64 COMMON_INTERCEPT_FUNCTION(scandir64); 3830 #else 3831 #define INIT_SCANDIR64 3832 #endif 3833 3834 #if SANITIZER_INTERCEPT_GETGROUPS 3835 INTERCEPTOR(int, getgroups, int size, u32 *lst) { 3836 void *ctx; 3837 COMMON_INTERCEPTOR_ENTER(ctx, getgroups, size, lst); 3838 // FIXME: under ASan the call below may write to freed memory and corrupt 3839 // its metadata. See 3840 // https://github.com/google/sanitizers/issues/321. 3841 int res = REAL(getgroups)(size, lst); 3842 if (res >= 0 && lst && size > 0) 3843 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, lst, res * sizeof(*lst)); 3844 return res; 3845 } 3846 #define INIT_GETGROUPS COMMON_INTERCEPT_FUNCTION(getgroups); 3847 #else 3848 #define INIT_GETGROUPS 3849 #endif 3850 3851 #if SANITIZER_INTERCEPT_POLL 3852 static void read_pollfd(void *ctx, __sanitizer_pollfd *fds, 3853 __sanitizer_nfds_t nfds) { 3854 for (unsigned i = 0; i < nfds; ++i) { 3855 COMMON_INTERCEPTOR_READ_RANGE(ctx, &fds[i].fd, sizeof(fds[i].fd)); 3856 COMMON_INTERCEPTOR_READ_RANGE(ctx, &fds[i].events, sizeof(fds[i].events)); 3857 } 3858 } 3859 3860 static void write_pollfd(void *ctx, __sanitizer_pollfd *fds, 3861 __sanitizer_nfds_t nfds) { 3862 for (unsigned i = 0; i < nfds; ++i) 3863 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, &fds[i].revents, 3864 sizeof(fds[i].revents)); 3865 } 3866 3867 INTERCEPTOR(int, poll, __sanitizer_pollfd *fds, __sanitizer_nfds_t nfds, 3868 int timeout) { 3869 void *ctx; 3870 COMMON_INTERCEPTOR_ENTER(ctx, poll, fds, nfds, timeout); 3871 if (fds && nfds) read_pollfd(ctx, fds, nfds); 3872 int res = COMMON_INTERCEPTOR_BLOCK_REAL(poll)(fds, nfds, timeout); 3873 if (fds && nfds) write_pollfd(ctx, fds, nfds); 3874 return res; 3875 } 3876 #define INIT_POLL COMMON_INTERCEPT_FUNCTION(poll); 3877 #else 3878 #define INIT_POLL 3879 #endif 3880 3881 #if SANITIZER_INTERCEPT_PPOLL 3882 INTERCEPTOR(int, ppoll, __sanitizer_pollfd *fds, __sanitizer_nfds_t nfds, 3883 void *timeout_ts, __sanitizer_sigset_t *sigmask) { 3884 void *ctx; 3885 COMMON_INTERCEPTOR_ENTER(ctx, ppoll, fds, nfds, timeout_ts, sigmask); 3886 if (fds && nfds) read_pollfd(ctx, fds, nfds); 3887 if (timeout_ts) 3888 COMMON_INTERCEPTOR_READ_RANGE(ctx, timeout_ts, struct_timespec_sz); 3889 if (sigmask) COMMON_INTERCEPTOR_READ_RANGE(ctx, sigmask, sizeof(*sigmask)); 3890 int res = 3891 COMMON_INTERCEPTOR_BLOCK_REAL(ppoll)(fds, nfds, timeout_ts, sigmask); 3892 if (fds && nfds) write_pollfd(ctx, fds, nfds); 3893 return res; 3894 } 3895 #define INIT_PPOLL COMMON_INTERCEPT_FUNCTION(ppoll); 3896 #else 3897 #define INIT_PPOLL 3898 #endif 3899 3900 #if SANITIZER_INTERCEPT_WORDEXP 3901 INTERCEPTOR(int, wordexp, char *s, __sanitizer_wordexp_t *p, int flags) { 3902 void *ctx; 3903 COMMON_INTERCEPTOR_ENTER(ctx, wordexp, s, p, flags); 3904 if (s) COMMON_INTERCEPTOR_READ_RANGE(ctx, s, REAL(strlen)(s) + 1); 3905 // FIXME: under ASan the call below may write to freed memory and corrupt 3906 // its metadata. See 3907 // https://github.com/google/sanitizers/issues/321. 3908 int res = REAL(wordexp)(s, p, flags); 3909 if (!res && p) { 3910 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, p, sizeof(*p)); 3911 if (p->we_wordc) 3912 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, p->we_wordv, 3913 sizeof(*p->we_wordv) * p->we_wordc); 3914 for (uptr i = 0; i < p->we_wordc; ++i) { 3915 char *w = p->we_wordv[i]; 3916 if (w) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, w, REAL(strlen)(w) + 1); 3917 } 3918 } 3919 return res; 3920 } 3921 #define INIT_WORDEXP COMMON_INTERCEPT_FUNCTION(wordexp); 3922 #else 3923 #define INIT_WORDEXP 3924 #endif 3925 3926 #if SANITIZER_INTERCEPT_SIGWAIT 3927 INTERCEPTOR(int, sigwait, __sanitizer_sigset_t *set, int *sig) { 3928 void *ctx; 3929 COMMON_INTERCEPTOR_ENTER(ctx, sigwait, set, sig); 3930 if (set) COMMON_INTERCEPTOR_READ_RANGE(ctx, set, sizeof(*set)); 3931 // FIXME: under ASan the call below may write to freed memory and corrupt 3932 // its metadata. See 3933 // https://github.com/google/sanitizers/issues/321. 3934 int res = REAL(sigwait)(set, sig); 3935 if (!res && sig) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, sig, sizeof(*sig)); 3936 return res; 3937 } 3938 #define INIT_SIGWAIT COMMON_INTERCEPT_FUNCTION(sigwait); 3939 #else 3940 #define INIT_SIGWAIT 3941 #endif 3942 3943 #if SANITIZER_INTERCEPT_SIGWAITINFO 3944 INTERCEPTOR(int, sigwaitinfo, __sanitizer_sigset_t *set, void *info) { 3945 void *ctx; 3946 COMMON_INTERCEPTOR_ENTER(ctx, sigwaitinfo, set, info); 3947 if (set) COMMON_INTERCEPTOR_READ_RANGE(ctx, set, sizeof(*set)); 3948 // FIXME: under ASan the call below may write to freed memory and corrupt 3949 // its metadata. See 3950 // https://github.com/google/sanitizers/issues/321. 3951 int res = REAL(sigwaitinfo)(set, info); 3952 if (res > 0 && info) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, info, siginfo_t_sz); 3953 return res; 3954 } 3955 #define INIT_SIGWAITINFO COMMON_INTERCEPT_FUNCTION(sigwaitinfo); 3956 #else 3957 #define INIT_SIGWAITINFO 3958 #endif 3959 3960 #if SANITIZER_INTERCEPT_SIGTIMEDWAIT 3961 INTERCEPTOR(int, sigtimedwait, __sanitizer_sigset_t *set, void *info, 3962 void *timeout) { 3963 void *ctx; 3964 COMMON_INTERCEPTOR_ENTER(ctx, sigtimedwait, set, info, timeout); 3965 if (timeout) COMMON_INTERCEPTOR_READ_RANGE(ctx, timeout, struct_timespec_sz); 3966 if (set) COMMON_INTERCEPTOR_READ_RANGE(ctx, set, sizeof(*set)); 3967 // FIXME: under ASan the call below may write to freed memory and corrupt 3968 // its metadata. See 3969 // https://github.com/google/sanitizers/issues/321. 3970 int res = REAL(sigtimedwait)(set, info, timeout); 3971 if (res > 0 && info) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, info, siginfo_t_sz); 3972 return res; 3973 } 3974 #define INIT_SIGTIMEDWAIT COMMON_INTERCEPT_FUNCTION(sigtimedwait); 3975 #else 3976 #define INIT_SIGTIMEDWAIT 3977 #endif 3978 3979 #if SANITIZER_INTERCEPT_SIGSETOPS 3980 INTERCEPTOR(int, sigemptyset, __sanitizer_sigset_t *set) { 3981 void *ctx; 3982 COMMON_INTERCEPTOR_ENTER(ctx, sigemptyset, set); 3983 // FIXME: under ASan the call below may write to freed memory and corrupt 3984 // its metadata. See 3985 // https://github.com/google/sanitizers/issues/321. 3986 int res = REAL(sigemptyset)(set); 3987 if (!res && set) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, set, sizeof(*set)); 3988 return res; 3989 } 3990 3991 INTERCEPTOR(int, sigfillset, __sanitizer_sigset_t *set) { 3992 void *ctx; 3993 COMMON_INTERCEPTOR_ENTER(ctx, sigfillset, set); 3994 // FIXME: under ASan the call below may write to freed memory and corrupt 3995 // its metadata. See 3996 // https://github.com/google/sanitizers/issues/321. 3997 int res = REAL(sigfillset)(set); 3998 if (!res && set) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, set, sizeof(*set)); 3999 return res; 4000 } 4001 #define INIT_SIGSETOPS \ 4002 COMMON_INTERCEPT_FUNCTION(sigemptyset); \ 4003 COMMON_INTERCEPT_FUNCTION(sigfillset); 4004 #else 4005 #define INIT_SIGSETOPS 4006 #endif 4007 4008 #if SANITIZER_INTERCEPT_SIGPENDING 4009 INTERCEPTOR(int, sigpending, __sanitizer_sigset_t *set) { 4010 void *ctx; 4011 COMMON_INTERCEPTOR_ENTER(ctx, sigpending, set); 4012 // FIXME: under ASan the call below may write to freed memory and corrupt 4013 // its metadata. See 4014 // https://github.com/google/sanitizers/issues/321. 4015 int res = REAL(sigpending)(set); 4016 if (!res && set) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, set, sizeof(*set)); 4017 return res; 4018 } 4019 #define INIT_SIGPENDING COMMON_INTERCEPT_FUNCTION(sigpending); 4020 #else 4021 #define INIT_SIGPENDING 4022 #endif 4023 4024 #if SANITIZER_INTERCEPT_SIGPROCMASK 4025 INTERCEPTOR(int, sigprocmask, int how, __sanitizer_sigset_t *set, 4026 __sanitizer_sigset_t *oldset) { 4027 void *ctx; 4028 COMMON_INTERCEPTOR_ENTER(ctx, sigprocmask, how, set, oldset); 4029 if (set) COMMON_INTERCEPTOR_READ_RANGE(ctx, set, sizeof(*set)); 4030 // FIXME: under ASan the call below may write to freed memory and corrupt 4031 // its metadata. See 4032 // https://github.com/google/sanitizers/issues/321. 4033 int res = REAL(sigprocmask)(how, set, oldset); 4034 if (!res && oldset) 4035 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, oldset, sizeof(*oldset)); 4036 return res; 4037 } 4038 #define INIT_SIGPROCMASK COMMON_INTERCEPT_FUNCTION(sigprocmask); 4039 #else 4040 #define INIT_SIGPROCMASK 4041 #endif 4042 4043 #if SANITIZER_INTERCEPT_BACKTRACE 4044 INTERCEPTOR(int, backtrace, void **buffer, int size) { 4045 void *ctx; 4046 COMMON_INTERCEPTOR_ENTER(ctx, backtrace, buffer, size); 4047 // FIXME: under ASan the call below may write to freed memory and corrupt 4048 // its metadata. See 4049 // https://github.com/google/sanitizers/issues/321. 4050 int res = REAL(backtrace)(buffer, size); 4051 if (res && buffer) 4052 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, buffer, res * sizeof(*buffer)); 4053 return res; 4054 } 4055 4056 INTERCEPTOR(char **, backtrace_symbols, void **buffer, int size) { 4057 void *ctx; 4058 COMMON_INTERCEPTOR_ENTER(ctx, backtrace_symbols, buffer, size); 4059 if (buffer && size) 4060 COMMON_INTERCEPTOR_READ_RANGE(ctx, buffer, size * sizeof(*buffer)); 4061 // FIXME: under ASan the call below may write to freed memory and corrupt 4062 // its metadata. See 4063 // https://github.com/google/sanitizers/issues/321. 4064 char **res = REAL(backtrace_symbols)(buffer, size); 4065 if (res && size) { 4066 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, res, size * sizeof(*res)); 4067 for (int i = 0; i < size; ++i) 4068 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, res[i], REAL(strlen(res[i])) + 1); 4069 } 4070 return res; 4071 } 4072 #define INIT_BACKTRACE \ 4073 COMMON_INTERCEPT_FUNCTION(backtrace); \ 4074 COMMON_INTERCEPT_FUNCTION(backtrace_symbols); 4075 #else 4076 #define INIT_BACKTRACE 4077 #endif 4078 4079 #if SANITIZER_INTERCEPT__EXIT 4080 INTERCEPTOR(void, _exit, int status) { 4081 void *ctx; 4082 COMMON_INTERCEPTOR_ENTER(ctx, _exit, status); 4083 COMMON_INTERCEPTOR_USER_CALLBACK_START(); 4084 int status1 = COMMON_INTERCEPTOR_ON_EXIT(ctx); 4085 COMMON_INTERCEPTOR_USER_CALLBACK_END(); 4086 if (status == 0) status = status1; 4087 REAL(_exit)(status); 4088 } 4089 #define INIT__EXIT COMMON_INTERCEPT_FUNCTION(_exit); 4090 #else 4091 #define INIT__EXIT 4092 #endif 4093 4094 #if SANITIZER_INTERCEPT_PTHREAD_MUTEX 4095 INTERCEPTOR(int, pthread_mutex_lock, void *m) { 4096 void *ctx; 4097 COMMON_INTERCEPTOR_ENTER(ctx, pthread_mutex_lock, m); 4098 COMMON_INTERCEPTOR_MUTEX_PRE_LOCK(ctx, m); 4099 int res = REAL(pthread_mutex_lock)(m); 4100 if (res == errno_EOWNERDEAD) 4101 COMMON_INTERCEPTOR_MUTEX_REPAIR(ctx, m); 4102 if (res == 0 || res == errno_EOWNERDEAD) 4103 COMMON_INTERCEPTOR_MUTEX_POST_LOCK(ctx, m); 4104 if (res == errno_EINVAL) 4105 COMMON_INTERCEPTOR_MUTEX_INVALID(ctx, m); 4106 return res; 4107 } 4108 4109 INTERCEPTOR(int, pthread_mutex_unlock, void *m) { 4110 void *ctx; 4111 COMMON_INTERCEPTOR_ENTER(ctx, pthread_mutex_unlock, m); 4112 COMMON_INTERCEPTOR_MUTEX_UNLOCK(ctx, m); 4113 int res = REAL(pthread_mutex_unlock)(m); 4114 if (res == errno_EINVAL) 4115 COMMON_INTERCEPTOR_MUTEX_INVALID(ctx, m); 4116 return res; 4117 } 4118 4119 #define INIT_PTHREAD_MUTEX_LOCK COMMON_INTERCEPT_FUNCTION(pthread_mutex_lock) 4120 #define INIT_PTHREAD_MUTEX_UNLOCK \ 4121 COMMON_INTERCEPT_FUNCTION(pthread_mutex_unlock) 4122 #else 4123 #define INIT_PTHREAD_MUTEX_LOCK 4124 #define INIT_PTHREAD_MUTEX_UNLOCK 4125 #endif 4126 4127 #if SANITIZER_INTERCEPT___PTHREAD_MUTEX 4128 INTERCEPTOR(int, __pthread_mutex_lock, void *m) { 4129 return WRAP(pthread_mutex_lock)(m); 4130 } 4131 4132 INTERCEPTOR(int, __pthread_mutex_unlock, void *m) { 4133 return WRAP(pthread_mutex_unlock)(m); 4134 } 4135 4136 #define INIT___PTHREAD_MUTEX_LOCK \ 4137 COMMON_INTERCEPT_FUNCTION(__pthread_mutex_lock) 4138 #define INIT___PTHREAD_MUTEX_UNLOCK \ 4139 COMMON_INTERCEPT_FUNCTION(__pthread_mutex_unlock) 4140 #else 4141 #define INIT___PTHREAD_MUTEX_LOCK 4142 #define INIT___PTHREAD_MUTEX_UNLOCK 4143 #endif 4144 4145 #if SANITIZER_INTERCEPT___LIBC_MUTEX 4146 INTERCEPTOR(int, __libc_mutex_lock, void *m) 4147 ALIAS(WRAPPER_NAME(pthread_mutex_lock)); 4148 4149 INTERCEPTOR(int, __libc_mutex_unlock, void *m) 4150 ALIAS(WRAPPER_NAME(pthread_mutex_unlock)); 4151 4152 INTERCEPTOR(int, __libc_thr_setcancelstate, int state, int *oldstate) 4153 ALIAS(WRAPPER_NAME(pthread_setcancelstate)); 4154 4155 #define INIT___LIBC_MUTEX_LOCK COMMON_INTERCEPT_FUNCTION(__libc_mutex_lock) 4156 #define INIT___LIBC_MUTEX_UNLOCK COMMON_INTERCEPT_FUNCTION(__libc_mutex_unlock) 4157 #define INIT___LIBC_THR_SETCANCELSTATE \ 4158 COMMON_INTERCEPT_FUNCTION(__libc_thr_setcancelstate) 4159 #else 4160 #define INIT___LIBC_MUTEX_LOCK 4161 #define INIT___LIBC_MUTEX_UNLOCK 4162 #define INIT___LIBC_THR_SETCANCELSTATE 4163 #endif 4164 4165 #if SANITIZER_INTERCEPT_GETMNTENT || SANITIZER_INTERCEPT_GETMNTENT_R 4166 static void write_mntent(void *ctx, __sanitizer_mntent *mnt) { 4167 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, mnt, sizeof(*mnt)); 4168 if (mnt->mnt_fsname) 4169 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, mnt->mnt_fsname, 4170 REAL(strlen)(mnt->mnt_fsname) + 1); 4171 if (mnt->mnt_dir) 4172 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, mnt->mnt_dir, 4173 REAL(strlen)(mnt->mnt_dir) + 1); 4174 if (mnt->mnt_type) 4175 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, mnt->mnt_type, 4176 REAL(strlen)(mnt->mnt_type) + 1); 4177 if (mnt->mnt_opts) 4178 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, mnt->mnt_opts, 4179 REAL(strlen)(mnt->mnt_opts) + 1); 4180 } 4181 #endif 4182 4183 #if SANITIZER_INTERCEPT_GETMNTENT 4184 INTERCEPTOR(__sanitizer_mntent *, getmntent, void *fp) { 4185 void *ctx; 4186 COMMON_INTERCEPTOR_ENTER(ctx, getmntent, fp); 4187 __sanitizer_mntent *res = REAL(getmntent)(fp); 4188 if (res) write_mntent(ctx, res); 4189 return res; 4190 } 4191 #define INIT_GETMNTENT COMMON_INTERCEPT_FUNCTION(getmntent); 4192 #else 4193 #define INIT_GETMNTENT 4194 #endif 4195 4196 #if SANITIZER_INTERCEPT_GETMNTENT_R 4197 INTERCEPTOR(__sanitizer_mntent *, getmntent_r, void *fp, 4198 __sanitizer_mntent *mntbuf, char *buf, int buflen) { 4199 void *ctx; 4200 COMMON_INTERCEPTOR_ENTER(ctx, getmntent_r, fp, mntbuf, buf, buflen); 4201 __sanitizer_mntent *res = REAL(getmntent_r)(fp, mntbuf, buf, buflen); 4202 if (res) write_mntent(ctx, res); 4203 return res; 4204 } 4205 #define INIT_GETMNTENT_R COMMON_INTERCEPT_FUNCTION(getmntent_r); 4206 #else 4207 #define INIT_GETMNTENT_R 4208 #endif 4209 4210 #if SANITIZER_INTERCEPT_STATFS 4211 INTERCEPTOR(int, statfs, char *path, void *buf) { 4212 void *ctx; 4213 COMMON_INTERCEPTOR_ENTER(ctx, statfs, path, buf); 4214 if (path) COMMON_INTERCEPTOR_READ_RANGE(ctx, path, REAL(strlen)(path) + 1); 4215 // FIXME: under ASan the call below may write to freed memory and corrupt 4216 // its metadata. See 4217 // https://github.com/google/sanitizers/issues/321. 4218 int res = REAL(statfs)(path, buf); 4219 if (!res) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, buf, struct_statfs_sz); 4220 return res; 4221 } 4222 INTERCEPTOR(int, fstatfs, int fd, void *buf) { 4223 void *ctx; 4224 COMMON_INTERCEPTOR_ENTER(ctx, fstatfs, fd, buf); 4225 // FIXME: under ASan the call below may write to freed memory and corrupt 4226 // its metadata. See 4227 // https://github.com/google/sanitizers/issues/321. 4228 int res = REAL(fstatfs)(fd, buf); 4229 if (!res) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, buf, struct_statfs_sz); 4230 return res; 4231 } 4232 #define INIT_STATFS \ 4233 COMMON_INTERCEPT_FUNCTION(statfs); \ 4234 COMMON_INTERCEPT_FUNCTION(fstatfs); 4235 #else 4236 #define INIT_STATFS 4237 #endif 4238 4239 #if SANITIZER_INTERCEPT_STATFS64 4240 INTERCEPTOR(int, statfs64, char *path, void *buf) { 4241 void *ctx; 4242 COMMON_INTERCEPTOR_ENTER(ctx, statfs64, path, buf); 4243 if (path) COMMON_INTERCEPTOR_READ_RANGE(ctx, path, REAL(strlen)(path) + 1); 4244 // FIXME: under ASan the call below may write to freed memory and corrupt 4245 // its metadata. See 4246 // https://github.com/google/sanitizers/issues/321. 4247 int res = REAL(statfs64)(path, buf); 4248 if (!res) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, buf, struct_statfs64_sz); 4249 return res; 4250 } 4251 INTERCEPTOR(int, fstatfs64, int fd, void *buf) { 4252 void *ctx; 4253 COMMON_INTERCEPTOR_ENTER(ctx, fstatfs64, fd, buf); 4254 // FIXME: under ASan the call below may write to freed memory and corrupt 4255 // its metadata. See 4256 // https://github.com/google/sanitizers/issues/321. 4257 int res = REAL(fstatfs64)(fd, buf); 4258 if (!res) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, buf, struct_statfs64_sz); 4259 return res; 4260 } 4261 #define INIT_STATFS64 \ 4262 COMMON_INTERCEPT_FUNCTION(statfs64); \ 4263 COMMON_INTERCEPT_FUNCTION(fstatfs64); 4264 #else 4265 #define INIT_STATFS64 4266 #endif 4267 4268 #if SANITIZER_INTERCEPT_STATVFS 4269 INTERCEPTOR(int, statvfs, char *path, void *buf) { 4270 void *ctx; 4271 COMMON_INTERCEPTOR_ENTER(ctx, statvfs, path, buf); 4272 if (path) COMMON_INTERCEPTOR_READ_RANGE(ctx, path, REAL(strlen)(path) + 1); 4273 // FIXME: under ASan the call below may write to freed memory and corrupt 4274 // its metadata. See 4275 // https://github.com/google/sanitizers/issues/321. 4276 int res = REAL(statvfs)(path, buf); 4277 if (!res) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, buf, struct_statvfs_sz); 4278 return res; 4279 } 4280 INTERCEPTOR(int, fstatvfs, int fd, void *buf) { 4281 void *ctx; 4282 COMMON_INTERCEPTOR_ENTER(ctx, fstatvfs, fd, buf); 4283 COMMON_INTERCEPTOR_FD_ACCESS(ctx, fd); 4284 // FIXME: under ASan the call below may write to freed memory and corrupt 4285 // its metadata. See 4286 // https://github.com/google/sanitizers/issues/321. 4287 int res = REAL(fstatvfs)(fd, buf); 4288 if (!res) { 4289 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, buf, struct_statvfs_sz); 4290 if (fd >= 0) 4291 COMMON_INTERCEPTOR_FD_ACQUIRE(ctx, fd); 4292 } 4293 return res; 4294 } 4295 #define INIT_STATVFS \ 4296 COMMON_INTERCEPT_FUNCTION(statvfs); \ 4297 COMMON_INTERCEPT_FUNCTION(fstatvfs); 4298 #else 4299 #define INIT_STATVFS 4300 #endif 4301 4302 #if SANITIZER_INTERCEPT_STATVFS64 4303 INTERCEPTOR(int, statvfs64, char *path, void *buf) { 4304 void *ctx; 4305 COMMON_INTERCEPTOR_ENTER(ctx, statvfs64, path, buf); 4306 if (path) COMMON_INTERCEPTOR_READ_RANGE(ctx, path, REAL(strlen)(path) + 1); 4307 // FIXME: under ASan the call below may write to freed memory and corrupt 4308 // its metadata. See 4309 // https://github.com/google/sanitizers/issues/321. 4310 int res = REAL(statvfs64)(path, buf); 4311 if (!res) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, buf, struct_statvfs64_sz); 4312 return res; 4313 } 4314 INTERCEPTOR(int, fstatvfs64, int fd, void *buf) { 4315 void *ctx; 4316 COMMON_INTERCEPTOR_ENTER(ctx, fstatvfs64, fd, buf); 4317 // FIXME: under ASan the call below may write to freed memory and corrupt 4318 // its metadata. See 4319 // https://github.com/google/sanitizers/issues/321. 4320 int res = REAL(fstatvfs64)(fd, buf); 4321 if (!res) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, buf, struct_statvfs64_sz); 4322 return res; 4323 } 4324 #define INIT_STATVFS64 \ 4325 COMMON_INTERCEPT_FUNCTION(statvfs64); \ 4326 COMMON_INTERCEPT_FUNCTION(fstatvfs64); 4327 #else 4328 #define INIT_STATVFS64 4329 #endif 4330 4331 #if SANITIZER_INTERCEPT_INITGROUPS 4332 INTERCEPTOR(int, initgroups, char *user, u32 group) { 4333 void *ctx; 4334 COMMON_INTERCEPTOR_ENTER(ctx, initgroups, user, group); 4335 if (user) COMMON_INTERCEPTOR_READ_RANGE(ctx, user, REAL(strlen)(user) + 1); 4336 int res = REAL(initgroups)(user, group); 4337 return res; 4338 } 4339 #define INIT_INITGROUPS COMMON_INTERCEPT_FUNCTION(initgroups); 4340 #else 4341 #define INIT_INITGROUPS 4342 #endif 4343 4344 #if SANITIZER_INTERCEPT_ETHER_NTOA_ATON 4345 INTERCEPTOR(char *, ether_ntoa, __sanitizer_ether_addr *addr) { 4346 void *ctx; 4347 COMMON_INTERCEPTOR_ENTER(ctx, ether_ntoa, addr); 4348 if (addr) COMMON_INTERCEPTOR_READ_RANGE(ctx, addr, sizeof(*addr)); 4349 char *res = REAL(ether_ntoa)(addr); 4350 if (res) COMMON_INTERCEPTOR_INITIALIZE_RANGE(res, REAL(strlen)(res) + 1); 4351 return res; 4352 } 4353 INTERCEPTOR(__sanitizer_ether_addr *, ether_aton, char *buf) { 4354 void *ctx; 4355 COMMON_INTERCEPTOR_ENTER(ctx, ether_aton, buf); 4356 if (buf) COMMON_INTERCEPTOR_READ_RANGE(ctx, buf, REAL(strlen)(buf) + 1); 4357 __sanitizer_ether_addr *res = REAL(ether_aton)(buf); 4358 if (res) COMMON_INTERCEPTOR_INITIALIZE_RANGE(res, sizeof(*res)); 4359 return res; 4360 } 4361 #define INIT_ETHER_NTOA_ATON \ 4362 COMMON_INTERCEPT_FUNCTION(ether_ntoa); \ 4363 COMMON_INTERCEPT_FUNCTION(ether_aton); 4364 #else 4365 #define INIT_ETHER_NTOA_ATON 4366 #endif 4367 4368 #if SANITIZER_INTERCEPT_ETHER_HOST 4369 INTERCEPTOR(int, ether_ntohost, char *hostname, __sanitizer_ether_addr *addr) { 4370 void *ctx; 4371 COMMON_INTERCEPTOR_ENTER(ctx, ether_ntohost, hostname, addr); 4372 if (addr) COMMON_INTERCEPTOR_READ_RANGE(ctx, addr, sizeof(*addr)); 4373 // FIXME: under ASan the call below may write to freed memory and corrupt 4374 // its metadata. See 4375 // https://github.com/google/sanitizers/issues/321. 4376 int res = REAL(ether_ntohost)(hostname, addr); 4377 if (!res && hostname) 4378 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, hostname, REAL(strlen)(hostname) + 1); 4379 return res; 4380 } 4381 INTERCEPTOR(int, ether_hostton, char *hostname, __sanitizer_ether_addr *addr) { 4382 void *ctx; 4383 COMMON_INTERCEPTOR_ENTER(ctx, ether_hostton, hostname, addr); 4384 if (hostname) 4385 COMMON_INTERCEPTOR_READ_RANGE(ctx, hostname, REAL(strlen)(hostname) + 1); 4386 // FIXME: under ASan the call below may write to freed memory and corrupt 4387 // its metadata. See 4388 // https://github.com/google/sanitizers/issues/321. 4389 int res = REAL(ether_hostton)(hostname, addr); 4390 if (!res && addr) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, addr, sizeof(*addr)); 4391 return res; 4392 } 4393 INTERCEPTOR(int, ether_line, char *line, __sanitizer_ether_addr *addr, 4394 char *hostname) { 4395 void *ctx; 4396 COMMON_INTERCEPTOR_ENTER(ctx, ether_line, line, addr, hostname); 4397 if (line) COMMON_INTERCEPTOR_READ_RANGE(ctx, line, REAL(strlen)(line) + 1); 4398 // FIXME: under ASan the call below may write to freed memory and corrupt 4399 // its metadata. See 4400 // https://github.com/google/sanitizers/issues/321. 4401 int res = REAL(ether_line)(line, addr, hostname); 4402 if (!res) { 4403 if (addr) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, addr, sizeof(*addr)); 4404 if (hostname) 4405 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, hostname, REAL(strlen)(hostname) + 1); 4406 } 4407 return res; 4408 } 4409 #define INIT_ETHER_HOST \ 4410 COMMON_INTERCEPT_FUNCTION(ether_ntohost); \ 4411 COMMON_INTERCEPT_FUNCTION(ether_hostton); \ 4412 COMMON_INTERCEPT_FUNCTION(ether_line); 4413 #else 4414 #define INIT_ETHER_HOST 4415 #endif 4416 4417 #if SANITIZER_INTERCEPT_ETHER_R 4418 INTERCEPTOR(char *, ether_ntoa_r, __sanitizer_ether_addr *addr, char *buf) { 4419 void *ctx; 4420 COMMON_INTERCEPTOR_ENTER(ctx, ether_ntoa_r, addr, buf); 4421 if (addr) COMMON_INTERCEPTOR_READ_RANGE(ctx, addr, sizeof(*addr)); 4422 // FIXME: under ASan the call below may write to freed memory and corrupt 4423 // its metadata. See 4424 // https://github.com/google/sanitizers/issues/321. 4425 char *res = REAL(ether_ntoa_r)(addr, buf); 4426 if (res) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, res, REAL(strlen)(res) + 1); 4427 return res; 4428 } 4429 INTERCEPTOR(__sanitizer_ether_addr *, ether_aton_r, char *buf, 4430 __sanitizer_ether_addr *addr) { 4431 void *ctx; 4432 COMMON_INTERCEPTOR_ENTER(ctx, ether_aton_r, buf, addr); 4433 if (buf) COMMON_INTERCEPTOR_READ_RANGE(ctx, buf, REAL(strlen)(buf) + 1); 4434 // FIXME: under ASan the call below may write to freed memory and corrupt 4435 // its metadata. See 4436 // https://github.com/google/sanitizers/issues/321. 4437 __sanitizer_ether_addr *res = REAL(ether_aton_r)(buf, addr); 4438 if (res) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, res, sizeof(*res)); 4439 return res; 4440 } 4441 #define INIT_ETHER_R \ 4442 COMMON_INTERCEPT_FUNCTION(ether_ntoa_r); \ 4443 COMMON_INTERCEPT_FUNCTION(ether_aton_r); 4444 #else 4445 #define INIT_ETHER_R 4446 #endif 4447 4448 #if SANITIZER_INTERCEPT_SHMCTL 4449 INTERCEPTOR(int, shmctl, int shmid, int cmd, void *buf) { 4450 void *ctx; 4451 COMMON_INTERCEPTOR_ENTER(ctx, shmctl, shmid, cmd, buf); 4452 // FIXME: under ASan the call below may write to freed memory and corrupt 4453 // its metadata. See 4454 // https://github.com/google/sanitizers/issues/321. 4455 int res = REAL(shmctl)(shmid, cmd, buf); 4456 if (res >= 0) { 4457 unsigned sz = 0; 4458 if (cmd == shmctl_ipc_stat || cmd == shmctl_shm_stat) 4459 sz = sizeof(__sanitizer_shmid_ds); 4460 else if (cmd == shmctl_ipc_info) 4461 sz = struct_shminfo_sz; 4462 else if (cmd == shmctl_shm_info) 4463 sz = struct_shm_info_sz; 4464 if (sz) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, buf, sz); 4465 } 4466 return res; 4467 } 4468 #define INIT_SHMCTL COMMON_INTERCEPT_FUNCTION(shmctl); 4469 #else 4470 #define INIT_SHMCTL 4471 #endif 4472 4473 #if SANITIZER_INTERCEPT_RANDOM_R 4474 INTERCEPTOR(int, random_r, void *buf, u32 *result) { 4475 void *ctx; 4476 COMMON_INTERCEPTOR_ENTER(ctx, random_r, buf, result); 4477 // FIXME: under ASan the call below may write to freed memory and corrupt 4478 // its metadata. See 4479 // https://github.com/google/sanitizers/issues/321. 4480 int res = REAL(random_r)(buf, result); 4481 if (!res && result) 4482 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, result, sizeof(*result)); 4483 return res; 4484 } 4485 #define INIT_RANDOM_R COMMON_INTERCEPT_FUNCTION(random_r); 4486 #else 4487 #define INIT_RANDOM_R 4488 #endif 4489 4490 // FIXME: under ASan the REAL() call below may write to freed memory and corrupt 4491 // its metadata. See 4492 // https://github.com/google/sanitizers/issues/321. 4493 #if SANITIZER_INTERCEPT_PTHREAD_ATTR_GET || \ 4494 SANITIZER_INTERCEPT_PTHREAD_ATTR_GET_SCHED || \ 4495 SANITIZER_INTERCEPT_PTHREAD_ATTR_GETINHERITSSCHED || \ 4496 SANITIZER_INTERCEPT_PTHREAD_MUTEXATTR_GET || \ 4497 SANITIZER_INTERCEPT_PTHREAD_RWLOCKATTR_GET || \ 4498 SANITIZER_INTERCEPT_PTHREAD_CONDATTR_GET || \ 4499 SANITIZER_INTERCEPT_PTHREAD_BARRIERATTR_GET 4500 #define INTERCEPTOR_PTHREAD_OBJECT_ATTR_GET(fn, sz) \ 4501 INTERCEPTOR(int, fn, void *attr, void *r) { \ 4502 void *ctx; \ 4503 COMMON_INTERCEPTOR_ENTER(ctx, fn, attr, r); \ 4504 int res = REAL(fn)(attr, r); \ 4505 if (!res && r) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, r, sz); \ 4506 return res; \ 4507 } 4508 #define INTERCEPTOR_PTHREAD_ATTR_GET(what, sz) \ 4509 INTERCEPTOR_PTHREAD_OBJECT_ATTR_GET(pthread_attr_get##what, sz) 4510 #define INTERCEPTOR_PTHREAD_MUTEXATTR_GET(what, sz) \ 4511 INTERCEPTOR_PTHREAD_OBJECT_ATTR_GET(pthread_mutexattr_get##what, sz) 4512 #define INTERCEPTOR_PTHREAD_RWLOCKATTR_GET(what, sz) \ 4513 INTERCEPTOR_PTHREAD_OBJECT_ATTR_GET(pthread_rwlockattr_get##what, sz) 4514 #define INTERCEPTOR_PTHREAD_CONDATTR_GET(what, sz) \ 4515 INTERCEPTOR_PTHREAD_OBJECT_ATTR_GET(pthread_condattr_get##what, sz) 4516 #define INTERCEPTOR_PTHREAD_BARRIERATTR_GET(what, sz) \ 4517 INTERCEPTOR_PTHREAD_OBJECT_ATTR_GET(pthread_barrierattr_get##what, sz) 4518 #endif 4519 4520 #if SANITIZER_INTERCEPT_PTHREAD_ATTR_GET 4521 INTERCEPTOR_PTHREAD_ATTR_GET(detachstate, sizeof(int)) 4522 INTERCEPTOR_PTHREAD_ATTR_GET(guardsize, sizeof(SIZE_T)) 4523 INTERCEPTOR_PTHREAD_ATTR_GET(scope, sizeof(int)) 4524 INTERCEPTOR_PTHREAD_ATTR_GET(stacksize, sizeof(SIZE_T)) 4525 INTERCEPTOR(int, pthread_attr_getstack, void *attr, void **addr, SIZE_T *size) { 4526 void *ctx; 4527 COMMON_INTERCEPTOR_ENTER(ctx, pthread_attr_getstack, attr, addr, size); 4528 // FIXME: under ASan the call below may write to freed memory and corrupt 4529 // its metadata. See 4530 // https://github.com/google/sanitizers/issues/321. 4531 int res = REAL(pthread_attr_getstack)(attr, addr, size); 4532 if (!res) { 4533 if (addr) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, addr, sizeof(*addr)); 4534 if (size) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, size, sizeof(*size)); 4535 } 4536 return res; 4537 } 4538 4539 // We may need to call the real pthread_attr_getstack from the run-time 4540 // in sanitizer_common, but we don't want to include the interception headers 4541 // there. So, just define this function here. 4542 namespace __sanitizer { 4543 extern "C" { 4544 int real_pthread_attr_getstack(void *attr, void **addr, SIZE_T *size) { 4545 return REAL(pthread_attr_getstack)(attr, addr, size); 4546 } 4547 } // extern "C" 4548 } // namespace __sanitizer 4549 4550 #define INIT_PTHREAD_ATTR_GET \ 4551 COMMON_INTERCEPT_FUNCTION(pthread_attr_getdetachstate); \ 4552 COMMON_INTERCEPT_FUNCTION(pthread_attr_getguardsize); \ 4553 COMMON_INTERCEPT_FUNCTION(pthread_attr_getscope); \ 4554 COMMON_INTERCEPT_FUNCTION(pthread_attr_getstacksize); \ 4555 COMMON_INTERCEPT_FUNCTION(pthread_attr_getstack); 4556 #else 4557 #define INIT_PTHREAD_ATTR_GET 4558 #endif 4559 4560 #if SANITIZER_INTERCEPT_PTHREAD_ATTR_GET_SCHED 4561 INTERCEPTOR_PTHREAD_ATTR_GET(schedparam, struct_sched_param_sz) 4562 INTERCEPTOR_PTHREAD_ATTR_GET(schedpolicy, sizeof(int)) 4563 4564 #define INIT_PTHREAD_ATTR_GET_SCHED \ 4565 COMMON_INTERCEPT_FUNCTION(pthread_attr_getschedparam); \ 4566 COMMON_INTERCEPT_FUNCTION(pthread_attr_getschedpolicy); 4567 #else 4568 #define INIT_PTHREAD_ATTR_GET_SCHED 4569 #endif 4570 4571 #if SANITIZER_INTERCEPT_PTHREAD_ATTR_GETINHERITSCHED 4572 INTERCEPTOR_PTHREAD_ATTR_GET(inheritsched, sizeof(int)) 4573 4574 #define INIT_PTHREAD_ATTR_GETINHERITSCHED \ 4575 COMMON_INTERCEPT_FUNCTION(pthread_attr_getinheritsched); 4576 #else 4577 #define INIT_PTHREAD_ATTR_GETINHERITSCHED 4578 #endif 4579 4580 #if SANITIZER_INTERCEPT_PTHREAD_ATTR_GETAFFINITY_NP 4581 INTERCEPTOR(int, pthread_attr_getaffinity_np, void *attr, SIZE_T cpusetsize, 4582 void *cpuset) { 4583 void *ctx; 4584 COMMON_INTERCEPTOR_ENTER(ctx, pthread_attr_getaffinity_np, attr, cpusetsize, 4585 cpuset); 4586 // FIXME: under ASan the call below may write to freed memory and corrupt 4587 // its metadata. See 4588 // https://github.com/google/sanitizers/issues/321. 4589 int res = REAL(pthread_attr_getaffinity_np)(attr, cpusetsize, cpuset); 4590 if (!res && cpusetsize && cpuset) 4591 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, cpuset, cpusetsize); 4592 return res; 4593 } 4594 4595 #define INIT_PTHREAD_ATTR_GETAFFINITY_NP \ 4596 COMMON_INTERCEPT_FUNCTION(pthread_attr_getaffinity_np); 4597 #else 4598 #define INIT_PTHREAD_ATTR_GETAFFINITY_NP 4599 #endif 4600 4601 #if SANITIZER_INTERCEPT_PTHREAD_MUTEXATTR_GETPSHARED 4602 INTERCEPTOR_PTHREAD_MUTEXATTR_GET(pshared, sizeof(int)) 4603 #define INIT_PTHREAD_MUTEXATTR_GETPSHARED \ 4604 COMMON_INTERCEPT_FUNCTION(pthread_mutexattr_getpshared); 4605 #else 4606 #define INIT_PTHREAD_MUTEXATTR_GETPSHARED 4607 #endif 4608 4609 #if SANITIZER_INTERCEPT_PTHREAD_MUTEXATTR_GETTYPE 4610 INTERCEPTOR_PTHREAD_MUTEXATTR_GET(type, sizeof(int)) 4611 #define INIT_PTHREAD_MUTEXATTR_GETTYPE \ 4612 COMMON_INTERCEPT_FUNCTION(pthread_mutexattr_gettype); 4613 #else 4614 #define INIT_PTHREAD_MUTEXATTR_GETTYPE 4615 #endif 4616 4617 #if SANITIZER_INTERCEPT_PTHREAD_MUTEXATTR_GETPROTOCOL 4618 INTERCEPTOR_PTHREAD_MUTEXATTR_GET(protocol, sizeof(int)) 4619 #define INIT_PTHREAD_MUTEXATTR_GETPROTOCOL \ 4620 COMMON_INTERCEPT_FUNCTION(pthread_mutexattr_getprotocol); 4621 #else 4622 #define INIT_PTHREAD_MUTEXATTR_GETPROTOCOL 4623 #endif 4624 4625 #if SANITIZER_INTERCEPT_PTHREAD_MUTEXATTR_GETPRIOCEILING 4626 INTERCEPTOR_PTHREAD_MUTEXATTR_GET(prioceiling, sizeof(int)) 4627 #define INIT_PTHREAD_MUTEXATTR_GETPRIOCEILING \ 4628 COMMON_INTERCEPT_FUNCTION(pthread_mutexattr_getprioceiling); 4629 #else 4630 #define INIT_PTHREAD_MUTEXATTR_GETPRIOCEILING 4631 #endif 4632 4633 #if SANITIZER_INTERCEPT_PTHREAD_MUTEXATTR_GETROBUST 4634 INTERCEPTOR_PTHREAD_MUTEXATTR_GET(robust, sizeof(int)) 4635 #define INIT_PTHREAD_MUTEXATTR_GETROBUST \ 4636 COMMON_INTERCEPT_FUNCTION(pthread_mutexattr_getrobust); 4637 #else 4638 #define INIT_PTHREAD_MUTEXATTR_GETROBUST 4639 #endif 4640 4641 #if SANITIZER_INTERCEPT_PTHREAD_MUTEXATTR_GETROBUST_NP 4642 INTERCEPTOR_PTHREAD_MUTEXATTR_GET(robust_np, sizeof(int)) 4643 #define INIT_PTHREAD_MUTEXATTR_GETROBUST_NP \ 4644 COMMON_INTERCEPT_FUNCTION(pthread_mutexattr_getrobust_np); 4645 #else 4646 #define INIT_PTHREAD_MUTEXATTR_GETROBUST_NP 4647 #endif 4648 4649 #if SANITIZER_INTERCEPT_PTHREAD_RWLOCKATTR_GETPSHARED 4650 INTERCEPTOR_PTHREAD_RWLOCKATTR_GET(pshared, sizeof(int)) 4651 #define INIT_PTHREAD_RWLOCKATTR_GETPSHARED \ 4652 COMMON_INTERCEPT_FUNCTION(pthread_rwlockattr_getpshared); 4653 #else 4654 #define INIT_PTHREAD_RWLOCKATTR_GETPSHARED 4655 #endif 4656 4657 #if SANITIZER_INTERCEPT_PTHREAD_RWLOCKATTR_GETKIND_NP 4658 INTERCEPTOR_PTHREAD_RWLOCKATTR_GET(kind_np, sizeof(int)) 4659 #define INIT_PTHREAD_RWLOCKATTR_GETKIND_NP \ 4660 COMMON_INTERCEPT_FUNCTION(pthread_rwlockattr_getkind_np); 4661 #else 4662 #define INIT_PTHREAD_RWLOCKATTR_GETKIND_NP 4663 #endif 4664 4665 #if SANITIZER_INTERCEPT_PTHREAD_CONDATTR_GETPSHARED 4666 INTERCEPTOR_PTHREAD_CONDATTR_GET(pshared, sizeof(int)) 4667 #define INIT_PTHREAD_CONDATTR_GETPSHARED \ 4668 COMMON_INTERCEPT_FUNCTION(pthread_condattr_getpshared); 4669 #else 4670 #define INIT_PTHREAD_CONDATTR_GETPSHARED 4671 #endif 4672 4673 #if SANITIZER_INTERCEPT_PTHREAD_CONDATTR_GETCLOCK 4674 INTERCEPTOR_PTHREAD_CONDATTR_GET(clock, sizeof(int)) 4675 #define INIT_PTHREAD_CONDATTR_GETCLOCK \ 4676 COMMON_INTERCEPT_FUNCTION(pthread_condattr_getclock); 4677 #else 4678 #define INIT_PTHREAD_CONDATTR_GETCLOCK 4679 #endif 4680 4681 #if SANITIZER_INTERCEPT_PTHREAD_BARRIERATTR_GETPSHARED 4682 INTERCEPTOR_PTHREAD_BARRIERATTR_GET(pshared, sizeof(int)) // !mac !android 4683 #define INIT_PTHREAD_BARRIERATTR_GETPSHARED \ 4684 COMMON_INTERCEPT_FUNCTION(pthread_barrierattr_getpshared); 4685 #else 4686 #define INIT_PTHREAD_BARRIERATTR_GETPSHARED 4687 #endif 4688 4689 #if SANITIZER_INTERCEPT_TMPNAM 4690 INTERCEPTOR(char *, tmpnam, char *s) { 4691 void *ctx; 4692 COMMON_INTERCEPTOR_ENTER(ctx, tmpnam, s); 4693 char *res = REAL(tmpnam)(s); 4694 if (res) { 4695 if (s) 4696 // FIXME: under ASan the call below may write to freed memory and corrupt 4697 // its metadata. See 4698 // https://github.com/google/sanitizers/issues/321. 4699 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, s, REAL(strlen)(s) + 1); 4700 else 4701 COMMON_INTERCEPTOR_INITIALIZE_RANGE(res, REAL(strlen)(res) + 1); 4702 } 4703 return res; 4704 } 4705 #define INIT_TMPNAM COMMON_INTERCEPT_FUNCTION(tmpnam); 4706 #else 4707 #define INIT_TMPNAM 4708 #endif 4709 4710 #if SANITIZER_INTERCEPT_TMPNAM_R 4711 INTERCEPTOR(char *, tmpnam_r, char *s) { 4712 void *ctx; 4713 COMMON_INTERCEPTOR_ENTER(ctx, tmpnam_r, s); 4714 // FIXME: under ASan the call below may write to freed memory and corrupt 4715 // its metadata. See 4716 // https://github.com/google/sanitizers/issues/321. 4717 char *res = REAL(tmpnam_r)(s); 4718 if (res && s) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, s, REAL(strlen)(s) + 1); 4719 return res; 4720 } 4721 #define INIT_TMPNAM_R COMMON_INTERCEPT_FUNCTION(tmpnam_r); 4722 #else 4723 #define INIT_TMPNAM_R 4724 #endif 4725 4726 #if SANITIZER_INTERCEPT_TTYNAME_R 4727 INTERCEPTOR(int, ttyname_r, int fd, char *name, SIZE_T namesize) { 4728 void *ctx; 4729 COMMON_INTERCEPTOR_ENTER(ctx, ttyname_r, fd, name, namesize); 4730 int res = REAL(ttyname_r)(fd, name, namesize); 4731 if (res == 0) 4732 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, name, REAL(strlen)(name) + 1); 4733 return res; 4734 } 4735 #define INIT_TTYNAME_R COMMON_INTERCEPT_FUNCTION(ttyname_r); 4736 #else 4737 #define INIT_TTYNAME_R 4738 #endif 4739 4740 #if SANITIZER_INTERCEPT_TEMPNAM 4741 INTERCEPTOR(char *, tempnam, char *dir, char *pfx) { 4742 void *ctx; 4743 COMMON_INTERCEPTOR_ENTER(ctx, tempnam, dir, pfx); 4744 if (dir) COMMON_INTERCEPTOR_READ_RANGE(ctx, dir, REAL(strlen)(dir) + 1); 4745 if (pfx) COMMON_INTERCEPTOR_READ_RANGE(ctx, pfx, REAL(strlen)(pfx) + 1); 4746 char *res = REAL(tempnam)(dir, pfx); 4747 if (res) COMMON_INTERCEPTOR_INITIALIZE_RANGE(res, REAL(strlen)(res) + 1); 4748 return res; 4749 } 4750 #define INIT_TEMPNAM COMMON_INTERCEPT_FUNCTION(tempnam); 4751 #else 4752 #define INIT_TEMPNAM 4753 #endif 4754 4755 #if SANITIZER_INTERCEPT_PTHREAD_SETNAME_NP && !SANITIZER_NETBSD 4756 INTERCEPTOR(int, pthread_setname_np, uptr thread, const char *name) { 4757 void *ctx; 4758 COMMON_INTERCEPTOR_ENTER(ctx, pthread_setname_np, thread, name); 4759 COMMON_INTERCEPTOR_READ_STRING(ctx, name, 0); 4760 COMMON_INTERCEPTOR_SET_PTHREAD_NAME(ctx, thread, name); 4761 return REAL(pthread_setname_np)(thread, name); 4762 } 4763 #define INIT_PTHREAD_SETNAME_NP COMMON_INTERCEPT_FUNCTION(pthread_setname_np); 4764 #elif SANITIZER_INTERCEPT_PTHREAD_SETNAME_NP && SANITIZER_NETBSD 4765 INTERCEPTOR(int, pthread_setname_np, uptr thread, const char *name, void *arg) { 4766 void *ctx; 4767 char newname[32]; // PTHREAD_MAX_NAMELEN_NP=32 4768 COMMON_INTERCEPTOR_ENTER(ctx, pthread_setname_np, thread, name, arg); 4769 COMMON_INTERCEPTOR_READ_STRING(ctx, name, 0); 4770 internal_snprintf(newname, sizeof(newname), name, arg); 4771 COMMON_INTERCEPTOR_SET_PTHREAD_NAME(ctx, thread, newname); 4772 return REAL(pthread_setname_np)(thread, name, arg); 4773 } 4774 #define INIT_PTHREAD_SETNAME_NP COMMON_INTERCEPT_FUNCTION(pthread_setname_np); 4775 #else 4776 #define INIT_PTHREAD_SETNAME_NP 4777 #endif 4778 4779 #if SANITIZER_INTERCEPT_PTHREAD_GETNAME_NP 4780 INTERCEPTOR(int, pthread_getname_np, uptr thread, char *name, SIZE_T len) { 4781 void *ctx; 4782 COMMON_INTERCEPTOR_ENTER(ctx, pthread_getname_np, thread, name, len); 4783 int res = REAL(pthread_getname_np)(thread, name, len); 4784 if (!res) 4785 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, name, internal_strnlen(name, len) + 1); 4786 return res; 4787 } 4788 #define INIT_PTHREAD_GETNAME_NP COMMON_INTERCEPT_FUNCTION(pthread_getname_np); 4789 #else 4790 #define INIT_PTHREAD_GETNAME_NP 4791 #endif 4792 4793 #if SANITIZER_INTERCEPT_SINCOS 4794 INTERCEPTOR(void, sincos, double x, double *sin, double *cos) { 4795 void *ctx; 4796 COMMON_INTERCEPTOR_ENTER(ctx, sincos, x, sin, cos); 4797 // FIXME: under ASan the call below may write to freed memory and corrupt 4798 // its metadata. See 4799 // https://github.com/google/sanitizers/issues/321. 4800 REAL(sincos)(x, sin, cos); 4801 if (sin) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, sin, sizeof(*sin)); 4802 if (cos) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, cos, sizeof(*cos)); 4803 } 4804 INTERCEPTOR(void, sincosf, float x, float *sin, float *cos) { 4805 void *ctx; 4806 COMMON_INTERCEPTOR_ENTER(ctx, sincosf, x, sin, cos); 4807 // FIXME: under ASan the call below may write to freed memory and corrupt 4808 // its metadata. See 4809 // https://github.com/google/sanitizers/issues/321. 4810 REAL(sincosf)(x, sin, cos); 4811 if (sin) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, sin, sizeof(*sin)); 4812 if (cos) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, cos, sizeof(*cos)); 4813 } 4814 INTERCEPTOR(void, sincosl, long double x, long double *sin, long double *cos) { 4815 void *ctx; 4816 COMMON_INTERCEPTOR_ENTER(ctx, sincosl, x, sin, cos); 4817 // FIXME: under ASan the call below may write to freed memory and corrupt 4818 // its metadata. See 4819 // https://github.com/google/sanitizers/issues/321. 4820 REAL(sincosl)(x, sin, cos); 4821 if (sin) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, sin, sizeof(*sin)); 4822 if (cos) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, cos, sizeof(*cos)); 4823 } 4824 #define INIT_SINCOS \ 4825 COMMON_INTERCEPT_FUNCTION(sincos); \ 4826 COMMON_INTERCEPT_FUNCTION(sincosf); \ 4827 COMMON_INTERCEPT_FUNCTION_LDBL(sincosl); 4828 #else 4829 #define INIT_SINCOS 4830 #endif 4831 4832 #if SANITIZER_INTERCEPT_REMQUO 4833 INTERCEPTOR(double, remquo, double x, double y, int *quo) { 4834 void *ctx; 4835 COMMON_INTERCEPTOR_ENTER(ctx, remquo, x, y, quo); 4836 // FIXME: under ASan the call below may write to freed memory and corrupt 4837 // its metadata. See 4838 // https://github.com/google/sanitizers/issues/321. 4839 double res = REAL(remquo)(x, y, quo); 4840 if (quo) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, quo, sizeof(*quo)); 4841 return res; 4842 } 4843 INTERCEPTOR(float, remquof, float x, float y, int *quo) { 4844 void *ctx; 4845 COMMON_INTERCEPTOR_ENTER(ctx, remquof, x, y, quo); 4846 // FIXME: under ASan the call below may write to freed memory and corrupt 4847 // its metadata. See 4848 // https://github.com/google/sanitizers/issues/321. 4849 float res = REAL(remquof)(x, y, quo); 4850 if (quo) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, quo, sizeof(*quo)); 4851 return res; 4852 } 4853 #define INIT_REMQUO \ 4854 COMMON_INTERCEPT_FUNCTION(remquo); \ 4855 COMMON_INTERCEPT_FUNCTION(remquof); 4856 #else 4857 #define INIT_REMQUO 4858 #endif 4859 4860 #if SANITIZER_INTERCEPT_REMQUOL 4861 INTERCEPTOR(long double, remquol, long double x, long double y, int *quo) { 4862 void *ctx; 4863 COMMON_INTERCEPTOR_ENTER(ctx, remquol, x, y, quo); 4864 // FIXME: under ASan the call below may write to freed memory and corrupt 4865 // its metadata. See 4866 // https://github.com/google/sanitizers/issues/321. 4867 long double res = REAL(remquol)(x, y, quo); 4868 if (quo) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, quo, sizeof(*quo)); 4869 return res; 4870 } 4871 #define INIT_REMQUOL \ 4872 COMMON_INTERCEPT_FUNCTION_LDBL(remquol); 4873 #else 4874 #define INIT_REMQUOL 4875 #endif 4876 4877 #if SANITIZER_INTERCEPT_LGAMMA 4878 extern int signgam; 4879 INTERCEPTOR(double, lgamma, double x) { 4880 void *ctx; 4881 COMMON_INTERCEPTOR_ENTER(ctx, lgamma, x); 4882 double res = REAL(lgamma)(x); 4883 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, &signgam, sizeof(signgam)); 4884 return res; 4885 } 4886 INTERCEPTOR(float, lgammaf, float x) { 4887 void *ctx; 4888 COMMON_INTERCEPTOR_ENTER(ctx, lgammaf, x); 4889 float res = REAL(lgammaf)(x); 4890 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, &signgam, sizeof(signgam)); 4891 return res; 4892 } 4893 #define INIT_LGAMMA \ 4894 COMMON_INTERCEPT_FUNCTION(lgamma); \ 4895 COMMON_INTERCEPT_FUNCTION(lgammaf); 4896 #else 4897 #define INIT_LGAMMA 4898 #endif 4899 4900 #if SANITIZER_INTERCEPT_LGAMMAL 4901 INTERCEPTOR(long double, lgammal, long double x) { 4902 void *ctx; 4903 COMMON_INTERCEPTOR_ENTER(ctx, lgammal, x); 4904 long double res = REAL(lgammal)(x); 4905 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, &signgam, sizeof(signgam)); 4906 return res; 4907 } 4908 #define INIT_LGAMMAL \ 4909 COMMON_INTERCEPT_FUNCTION_LDBL(lgammal); 4910 #else 4911 #define INIT_LGAMMAL 4912 #endif 4913 4914 #if SANITIZER_INTERCEPT_LGAMMA_R 4915 INTERCEPTOR(double, lgamma_r, double x, int *signp) { 4916 void *ctx; 4917 COMMON_INTERCEPTOR_ENTER(ctx, lgamma_r, x, signp); 4918 // FIXME: under ASan the call below may write to freed memory and corrupt 4919 // its metadata. See 4920 // https://github.com/google/sanitizers/issues/321. 4921 double res = REAL(lgamma_r)(x, signp); 4922 if (signp) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, signp, sizeof(*signp)); 4923 return res; 4924 } 4925 INTERCEPTOR(float, lgammaf_r, float x, int *signp) { 4926 void *ctx; 4927 COMMON_INTERCEPTOR_ENTER(ctx, lgammaf_r, x, signp); 4928 // FIXME: under ASan the call below may write to freed memory and corrupt 4929 // its metadata. See 4930 // https://github.com/google/sanitizers/issues/321. 4931 float res = REAL(lgammaf_r)(x, signp); 4932 if (signp) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, signp, sizeof(*signp)); 4933 return res; 4934 } 4935 #define INIT_LGAMMA_R \ 4936 COMMON_INTERCEPT_FUNCTION(lgamma_r); \ 4937 COMMON_INTERCEPT_FUNCTION(lgammaf_r); 4938 #else 4939 #define INIT_LGAMMA_R 4940 #endif 4941 4942 #if SANITIZER_INTERCEPT_LGAMMAL_R 4943 INTERCEPTOR(long double, lgammal_r, long double x, int *signp) { 4944 void *ctx; 4945 COMMON_INTERCEPTOR_ENTER(ctx, lgammal_r, x, signp); 4946 // FIXME: under ASan the call below may write to freed memory and corrupt 4947 // its metadata. See 4948 // https://github.com/google/sanitizers/issues/321. 4949 long double res = REAL(lgammal_r)(x, signp); 4950 if (signp) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, signp, sizeof(*signp)); 4951 return res; 4952 } 4953 #define INIT_LGAMMAL_R COMMON_INTERCEPT_FUNCTION_LDBL(lgammal_r); 4954 #else 4955 #define INIT_LGAMMAL_R 4956 #endif 4957 4958 #if SANITIZER_INTERCEPT_DRAND48_R 4959 INTERCEPTOR(int, drand48_r, void *buffer, double *result) { 4960 void *ctx; 4961 COMMON_INTERCEPTOR_ENTER(ctx, drand48_r, buffer, result); 4962 // FIXME: under ASan the call below may write to freed memory and corrupt 4963 // its metadata. See 4964 // https://github.com/google/sanitizers/issues/321. 4965 int res = REAL(drand48_r)(buffer, result); 4966 if (result) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, result, sizeof(*result)); 4967 return res; 4968 } 4969 INTERCEPTOR(int, lrand48_r, void *buffer, long *result) { 4970 void *ctx; 4971 COMMON_INTERCEPTOR_ENTER(ctx, lrand48_r, buffer, result); 4972 // FIXME: under ASan the call below may write to freed memory and corrupt 4973 // its metadata. See 4974 // https://github.com/google/sanitizers/issues/321. 4975 int res = REAL(lrand48_r)(buffer, result); 4976 if (result) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, result, sizeof(*result)); 4977 return res; 4978 } 4979 #define INIT_DRAND48_R \ 4980 COMMON_INTERCEPT_FUNCTION(drand48_r); \ 4981 COMMON_INTERCEPT_FUNCTION(lrand48_r); 4982 #else 4983 #define INIT_DRAND48_R 4984 #endif 4985 4986 #if SANITIZER_INTERCEPT_RAND_R 4987 INTERCEPTOR(int, rand_r, unsigned *seedp) { 4988 void *ctx; 4989 COMMON_INTERCEPTOR_ENTER(ctx, rand_r, seedp); 4990 COMMON_INTERCEPTOR_READ_RANGE(ctx, seedp, sizeof(*seedp)); 4991 return REAL(rand_r)(seedp); 4992 } 4993 #define INIT_RAND_R COMMON_INTERCEPT_FUNCTION(rand_r); 4994 #else 4995 #define INIT_RAND_R 4996 #endif 4997 4998 #if SANITIZER_INTERCEPT_GETLINE 4999 INTERCEPTOR(SSIZE_T, getline, char **lineptr, SIZE_T *n, void *stream) { 5000 void *ctx; 5001 COMMON_INTERCEPTOR_ENTER(ctx, getline, lineptr, n, stream); 5002 // FIXME: under ASan the call below may write to freed memory and corrupt 5003 // its metadata. See 5004 // https://github.com/google/sanitizers/issues/321. 5005 SSIZE_T res = REAL(getline)(lineptr, n, stream); 5006 if (res > 0) { 5007 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, lineptr, sizeof(*lineptr)); 5008 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, n, sizeof(*n)); 5009 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, *lineptr, res + 1); 5010 } 5011 return res; 5012 } 5013 5014 // FIXME: under ASan the call below may write to freed memory and corrupt its 5015 // metadata. See 5016 // https://github.com/google/sanitizers/issues/321. 5017 #define GETDELIM_INTERCEPTOR_IMPL(vname) \ 5018 { \ 5019 void *ctx; \ 5020 COMMON_INTERCEPTOR_ENTER(ctx, vname, lineptr, n, delim, stream); \ 5021 SSIZE_T res = REAL(vname)(lineptr, n, delim, stream); \ 5022 if (res > 0) { \ 5023 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, lineptr, sizeof(*lineptr)); \ 5024 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, n, sizeof(*n)); \ 5025 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, *lineptr, res + 1); \ 5026 } \ 5027 return res; \ 5028 } 5029 5030 INTERCEPTOR(SSIZE_T, __getdelim, char **lineptr, SIZE_T *n, int delim, 5031 void *stream) 5032 GETDELIM_INTERCEPTOR_IMPL(__getdelim) 5033 5034 // There's no __getdelim() on FreeBSD so we supply the getdelim() interceptor 5035 // with its own body. 5036 INTERCEPTOR(SSIZE_T, getdelim, char **lineptr, SIZE_T *n, int delim, 5037 void *stream) 5038 GETDELIM_INTERCEPTOR_IMPL(getdelim) 5039 5040 #define INIT_GETLINE \ 5041 COMMON_INTERCEPT_FUNCTION(getline); \ 5042 COMMON_INTERCEPT_FUNCTION(__getdelim); \ 5043 COMMON_INTERCEPT_FUNCTION(getdelim); 5044 #else 5045 #define INIT_GETLINE 5046 #endif 5047 5048 #if SANITIZER_INTERCEPT_ICONV 5049 INTERCEPTOR(SIZE_T, iconv, void *cd, char **inbuf, SIZE_T *inbytesleft, 5050 char **outbuf, SIZE_T *outbytesleft) { 5051 void *ctx; 5052 COMMON_INTERCEPTOR_ENTER(ctx, iconv, cd, inbuf, inbytesleft, outbuf, 5053 outbytesleft); 5054 if (inbytesleft) 5055 COMMON_INTERCEPTOR_READ_RANGE(ctx, inbytesleft, sizeof(*inbytesleft)); 5056 if (inbuf && inbytesleft) 5057 COMMON_INTERCEPTOR_READ_RANGE(ctx, *inbuf, *inbytesleft); 5058 if (outbytesleft) 5059 COMMON_INTERCEPTOR_READ_RANGE(ctx, outbytesleft, sizeof(*outbytesleft)); 5060 void *outbuf_orig = outbuf ? *outbuf : nullptr; 5061 // FIXME: under ASan the call below may write to freed memory and corrupt 5062 // its metadata. See 5063 // https://github.com/google/sanitizers/issues/321. 5064 SIZE_T res = REAL(iconv)(cd, inbuf, inbytesleft, outbuf, outbytesleft); 5065 if (outbuf && *outbuf > outbuf_orig) { 5066 SIZE_T sz = (char *)*outbuf - (char *)outbuf_orig; 5067 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, outbuf_orig, sz); 5068 } 5069 return res; 5070 } 5071 #define INIT_ICONV COMMON_INTERCEPT_FUNCTION(iconv); 5072 #else 5073 #define INIT_ICONV 5074 #endif 5075 5076 #if SANITIZER_INTERCEPT_TIMES 5077 INTERCEPTOR(__sanitizer_clock_t, times, void *tms) { 5078 void *ctx; 5079 COMMON_INTERCEPTOR_ENTER(ctx, times, tms); 5080 // FIXME: under ASan the call below may write to freed memory and corrupt 5081 // its metadata. See 5082 // https://github.com/google/sanitizers/issues/321. 5083 __sanitizer_clock_t res = REAL(times)(tms); 5084 if (res != (__sanitizer_clock_t)-1 && tms) 5085 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, tms, struct_tms_sz); 5086 return res; 5087 } 5088 #define INIT_TIMES COMMON_INTERCEPT_FUNCTION(times); 5089 #else 5090 #define INIT_TIMES 5091 #endif 5092 5093 #if SANITIZER_INTERCEPT_TLS_GET_ADDR 5094 #if !SANITIZER_S390 5095 #define INIT_TLS_GET_ADDR COMMON_INTERCEPT_FUNCTION(__tls_get_addr) 5096 // If you see any crashes around this functions, there are 2 known issues with 5097 // it: 1. __tls_get_addr can be called with mis-aligned stack due to: 5098 // https://gcc.gnu.org/bugzilla/show_bug.cgi?id=58066 5099 // 2. It can be called recursively if sanitizer code uses __tls_get_addr 5100 // to access thread local variables (it should not happen normally, 5101 // because sanitizers use initial-exec tls model). 5102 INTERCEPTOR(void *, __tls_get_addr, void *arg) { 5103 void *ctx; 5104 COMMON_INTERCEPTOR_ENTER(ctx, __tls_get_addr, arg); 5105 void *res = REAL(__tls_get_addr)(arg); 5106 uptr tls_begin, tls_end; 5107 COMMON_INTERCEPTOR_GET_TLS_RANGE(&tls_begin, &tls_end); 5108 DTLS::DTV *dtv = DTLS_on_tls_get_addr(arg, res, tls_begin, tls_end); 5109 if (dtv) { 5110 // New DTLS block has been allocated. 5111 COMMON_INTERCEPTOR_INITIALIZE_RANGE((void *)dtv->beg, dtv->size); 5112 } 5113 return res; 5114 } 5115 #if SANITIZER_PPC 5116 // On PowerPC, we also need to intercept __tls_get_addr_opt, which has 5117 // mostly the same semantics as __tls_get_addr, but its presence enables 5118 // some optimizations in linker (which are safe to ignore here). 5119 extern "C" __attribute__((alias("__interceptor___tls_get_addr"), 5120 visibility("default"))) 5121 void *__tls_get_addr_opt(void *arg); 5122 #endif 5123 #else // SANITIZER_S390 5124 // On s390, we have to intercept two functions here: 5125 // - __tls_get_addr_internal, which is a glibc-internal function that is like 5126 // the usual __tls_get_addr, but returns a TP-relative offset instead of 5127 // a proper pointer. It is used by dlsym for TLS symbols. 5128 // - __tls_get_offset, which is like the above, but also takes a GOT-relative 5129 // descriptor offset as an argument instead of a pointer. GOT address 5130 // is passed in r12, so it's necessary to write it in assembly. This is 5131 // the function used by the compiler. 5132 extern "C" uptr __tls_get_offset_wrapper(void *arg, uptr (*fn)(void *arg)); 5133 #define INIT_TLS_GET_ADDR COMMON_INTERCEPT_FUNCTION(__tls_get_offset) 5134 DEFINE_REAL(uptr, __tls_get_offset, void *arg) 5135 extern "C" uptr __tls_get_offset(void *arg); 5136 extern "C" uptr __interceptor___tls_get_offset(void *arg); 5137 INTERCEPTOR(uptr, __tls_get_addr_internal, void *arg) { 5138 void *ctx; 5139 COMMON_INTERCEPTOR_ENTER(ctx, __tls_get_addr_internal, arg); 5140 uptr res = __tls_get_offset_wrapper(arg, REAL(__tls_get_offset)); 5141 uptr tp = reinterpret_cast<uptr>(__builtin_thread_pointer()); 5142 void *ptr = reinterpret_cast<void *>(res + tp); 5143 uptr tls_begin, tls_end; 5144 COMMON_INTERCEPTOR_GET_TLS_RANGE(&tls_begin, &tls_end); 5145 DTLS::DTV *dtv = DTLS_on_tls_get_addr(arg, ptr, tls_begin, tls_end); 5146 if (dtv) { 5147 // New DTLS block has been allocated. 5148 COMMON_INTERCEPTOR_INITIALIZE_RANGE((void *)dtv->beg, dtv->size); 5149 } 5150 return res; 5151 } 5152 // We need a hidden symbol aliasing the above, so that we can jump 5153 // directly to it from the assembly below. 5154 extern "C" __attribute__((alias("__interceptor___tls_get_addr_internal"), 5155 visibility("hidden"))) 5156 uptr __tls_get_addr_hidden(void *arg); 5157 // Now carefully intercept __tls_get_offset. 5158 asm( 5159 ".text\n" 5160 // The __intercept_ version has to exist, so that gen_dynamic_list.py 5161 // exports our symbol. 5162 ".weak __tls_get_offset\n" 5163 ".type __tls_get_offset, @function\n" 5164 "__tls_get_offset:\n" 5165 ".global __interceptor___tls_get_offset\n" 5166 ".type __interceptor___tls_get_offset, @function\n" 5167 "__interceptor___tls_get_offset:\n" 5168 #ifdef __s390x__ 5169 "la %r2, 0(%r2,%r12)\n" 5170 "jg __tls_get_addr_hidden\n" 5171 #else 5172 "basr %r3,0\n" 5173 "0: la %r2,0(%r2,%r12)\n" 5174 "l %r4,1f-0b(%r3)\n" 5175 "b 0(%r4,%r3)\n" 5176 "1: .long __tls_get_addr_hidden - 0b\n" 5177 #endif 5178 ".size __interceptor___tls_get_offset, .-__interceptor___tls_get_offset\n" 5179 // Assembly wrapper to call REAL(__tls_get_offset)(arg) 5180 ".type __tls_get_offset_wrapper, @function\n" 5181 "__tls_get_offset_wrapper:\n" 5182 #ifdef __s390x__ 5183 "sgr %r2,%r12\n" 5184 #else 5185 "sr %r2,%r12\n" 5186 #endif 5187 "br %r3\n" 5188 ".size __tls_get_offset_wrapper, .-__tls_get_offset_wrapper\n" 5189 ); 5190 #endif // SANITIZER_S390 5191 #else 5192 #define INIT_TLS_GET_ADDR 5193 #endif 5194 5195 #if SANITIZER_INTERCEPT_LISTXATTR 5196 INTERCEPTOR(SSIZE_T, listxattr, const char *path, char *list, SIZE_T size) { 5197 void *ctx; 5198 COMMON_INTERCEPTOR_ENTER(ctx, listxattr, path, list, size); 5199 if (path) COMMON_INTERCEPTOR_READ_RANGE(ctx, path, REAL(strlen)(path) + 1); 5200 // FIXME: under ASan the call below may write to freed memory and corrupt 5201 // its metadata. See 5202 // https://github.com/google/sanitizers/issues/321. 5203 SSIZE_T res = REAL(listxattr)(path, list, size); 5204 // Here and below, size == 0 is a special case where nothing is written to the 5205 // buffer, and res contains the desired buffer size. 5206 if (size && res > 0 && list) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, list, res); 5207 return res; 5208 } 5209 INTERCEPTOR(SSIZE_T, llistxattr, const char *path, char *list, SIZE_T size) { 5210 void *ctx; 5211 COMMON_INTERCEPTOR_ENTER(ctx, llistxattr, path, list, size); 5212 if (path) COMMON_INTERCEPTOR_READ_RANGE(ctx, path, REAL(strlen)(path) + 1); 5213 // FIXME: under ASan the call below may write to freed memory and corrupt 5214 // its metadata. See 5215 // https://github.com/google/sanitizers/issues/321. 5216 SSIZE_T res = REAL(llistxattr)(path, list, size); 5217 if (size && res > 0 && list) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, list, res); 5218 return res; 5219 } 5220 INTERCEPTOR(SSIZE_T, flistxattr, int fd, char *list, SIZE_T size) { 5221 void *ctx; 5222 COMMON_INTERCEPTOR_ENTER(ctx, flistxattr, fd, list, size); 5223 // FIXME: under ASan the call below may write to freed memory and corrupt 5224 // its metadata. See 5225 // https://github.com/google/sanitizers/issues/321. 5226 SSIZE_T res = REAL(flistxattr)(fd, list, size); 5227 if (size && res > 0 && list) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, list, res); 5228 return res; 5229 } 5230 #define INIT_LISTXATTR \ 5231 COMMON_INTERCEPT_FUNCTION(listxattr); \ 5232 COMMON_INTERCEPT_FUNCTION(llistxattr); \ 5233 COMMON_INTERCEPT_FUNCTION(flistxattr); 5234 #else 5235 #define INIT_LISTXATTR 5236 #endif 5237 5238 #if SANITIZER_INTERCEPT_GETXATTR 5239 INTERCEPTOR(SSIZE_T, getxattr, const char *path, const char *name, char *value, 5240 SIZE_T size) { 5241 void *ctx; 5242 COMMON_INTERCEPTOR_ENTER(ctx, getxattr, path, name, value, size); 5243 if (path) COMMON_INTERCEPTOR_READ_RANGE(ctx, path, REAL(strlen)(path) + 1); 5244 if (name) COMMON_INTERCEPTOR_READ_RANGE(ctx, name, REAL(strlen)(name) + 1); 5245 // FIXME: under ASan the call below may write to freed memory and corrupt 5246 // its metadata. See 5247 // https://github.com/google/sanitizers/issues/321. 5248 SSIZE_T res = REAL(getxattr)(path, name, value, size); 5249 if (size && res > 0 && value) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, value, res); 5250 return res; 5251 } 5252 INTERCEPTOR(SSIZE_T, lgetxattr, const char *path, const char *name, char *value, 5253 SIZE_T size) { 5254 void *ctx; 5255 COMMON_INTERCEPTOR_ENTER(ctx, lgetxattr, path, name, value, size); 5256 if (path) COMMON_INTERCEPTOR_READ_RANGE(ctx, path, REAL(strlen)(path) + 1); 5257 if (name) COMMON_INTERCEPTOR_READ_RANGE(ctx, name, REAL(strlen)(name) + 1); 5258 // FIXME: under ASan the call below may write to freed memory and corrupt 5259 // its metadata. See 5260 // https://github.com/google/sanitizers/issues/321. 5261 SSIZE_T res = REAL(lgetxattr)(path, name, value, size); 5262 if (size && res > 0 && value) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, value, res); 5263 return res; 5264 } 5265 INTERCEPTOR(SSIZE_T, fgetxattr, int fd, const char *name, char *value, 5266 SIZE_T size) { 5267 void *ctx; 5268 COMMON_INTERCEPTOR_ENTER(ctx, fgetxattr, fd, name, value, size); 5269 if (name) COMMON_INTERCEPTOR_READ_RANGE(ctx, name, REAL(strlen)(name) + 1); 5270 // FIXME: under ASan the call below may write to freed memory and corrupt 5271 // its metadata. See 5272 // https://github.com/google/sanitizers/issues/321. 5273 SSIZE_T res = REAL(fgetxattr)(fd, name, value, size); 5274 if (size && res > 0 && value) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, value, res); 5275 return res; 5276 } 5277 #define INIT_GETXATTR \ 5278 COMMON_INTERCEPT_FUNCTION(getxattr); \ 5279 COMMON_INTERCEPT_FUNCTION(lgetxattr); \ 5280 COMMON_INTERCEPT_FUNCTION(fgetxattr); 5281 #else 5282 #define INIT_GETXATTR 5283 #endif 5284 5285 #if SANITIZER_INTERCEPT_GETRESID 5286 INTERCEPTOR(int, getresuid, void *ruid, void *euid, void *suid) { 5287 void *ctx; 5288 COMMON_INTERCEPTOR_ENTER(ctx, getresuid, ruid, euid, suid); 5289 // FIXME: under ASan the call below may write to freed memory and corrupt 5290 // its metadata. See 5291 // https://github.com/google/sanitizers/issues/321. 5292 int res = REAL(getresuid)(ruid, euid, suid); 5293 if (res >= 0) { 5294 if (ruid) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, ruid, uid_t_sz); 5295 if (euid) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, euid, uid_t_sz); 5296 if (suid) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, suid, uid_t_sz); 5297 } 5298 return res; 5299 } 5300 INTERCEPTOR(int, getresgid, void *rgid, void *egid, void *sgid) { 5301 void *ctx; 5302 COMMON_INTERCEPTOR_ENTER(ctx, getresgid, rgid, egid, sgid); 5303 // FIXME: under ASan the call below may write to freed memory and corrupt 5304 // its metadata. See 5305 // https://github.com/google/sanitizers/issues/321. 5306 int res = REAL(getresgid)(rgid, egid, sgid); 5307 if (res >= 0) { 5308 if (rgid) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, rgid, gid_t_sz); 5309 if (egid) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, egid, gid_t_sz); 5310 if (sgid) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, sgid, gid_t_sz); 5311 } 5312 return res; 5313 } 5314 #define INIT_GETRESID \ 5315 COMMON_INTERCEPT_FUNCTION(getresuid); \ 5316 COMMON_INTERCEPT_FUNCTION(getresgid); 5317 #else 5318 #define INIT_GETRESID 5319 #endif 5320 5321 #if SANITIZER_INTERCEPT_GETIFADDRS 5322 // As long as getifaddrs()/freeifaddrs() use calloc()/free(), we don't need to 5323 // intercept freeifaddrs(). If that ceases to be the case, we might need to 5324 // intercept it to poison the memory again. 5325 INTERCEPTOR(int, getifaddrs, __sanitizer_ifaddrs **ifap) { 5326 void *ctx; 5327 COMMON_INTERCEPTOR_ENTER(ctx, getifaddrs, ifap); 5328 // FIXME: under ASan the call below may write to freed memory and corrupt 5329 // its metadata. See 5330 // https://github.com/google/sanitizers/issues/321. 5331 int res = REAL(getifaddrs)(ifap); 5332 if (res == 0 && ifap) { 5333 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, ifap, sizeof(void *)); 5334 __sanitizer_ifaddrs *p = *ifap; 5335 while (p) { 5336 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, p, sizeof(__sanitizer_ifaddrs)); 5337 if (p->ifa_name) 5338 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, p->ifa_name, 5339 REAL(strlen)(p->ifa_name) + 1); 5340 if (p->ifa_addr) 5341 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, p->ifa_addr, struct_sockaddr_sz); 5342 if (p->ifa_netmask) 5343 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, p->ifa_netmask, struct_sockaddr_sz); 5344 // On Linux this is a union, but the other member also points to a 5345 // struct sockaddr, so the following is sufficient. 5346 if (p->ifa_dstaddr) 5347 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, p->ifa_dstaddr, struct_sockaddr_sz); 5348 // FIXME(smatveev): Unpoison p->ifa_data as well. 5349 p = p->ifa_next; 5350 } 5351 } 5352 return res; 5353 } 5354 #define INIT_GETIFADDRS \ 5355 COMMON_INTERCEPT_FUNCTION(getifaddrs); 5356 #else 5357 #define INIT_GETIFADDRS 5358 #endif 5359 5360 #if SANITIZER_INTERCEPT_IF_INDEXTONAME 5361 INTERCEPTOR(char *, if_indextoname, unsigned int ifindex, char* ifname) { 5362 void *ctx; 5363 COMMON_INTERCEPTOR_ENTER(ctx, if_indextoname, ifindex, ifname); 5364 // FIXME: under ASan the call below may write to freed memory and corrupt 5365 // its metadata. See 5366 // https://github.com/google/sanitizers/issues/321. 5367 char *res = REAL(if_indextoname)(ifindex, ifname); 5368 if (res && ifname) 5369 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, ifname, REAL(strlen)(ifname) + 1); 5370 return res; 5371 } 5372 INTERCEPTOR(unsigned int, if_nametoindex, const char* ifname) { 5373 void *ctx; 5374 COMMON_INTERCEPTOR_ENTER(ctx, if_nametoindex, ifname); 5375 if (ifname) 5376 COMMON_INTERCEPTOR_READ_RANGE(ctx, ifname, REAL(strlen)(ifname) + 1); 5377 return REAL(if_nametoindex)(ifname); 5378 } 5379 #define INIT_IF_INDEXTONAME \ 5380 COMMON_INTERCEPT_FUNCTION(if_indextoname); \ 5381 COMMON_INTERCEPT_FUNCTION(if_nametoindex); 5382 #else 5383 #define INIT_IF_INDEXTONAME 5384 #endif 5385 5386 #if SANITIZER_INTERCEPT_CAPGET 5387 INTERCEPTOR(int, capget, void *hdrp, void *datap) { 5388 void *ctx; 5389 COMMON_INTERCEPTOR_ENTER(ctx, capget, hdrp, datap); 5390 if (hdrp) 5391 COMMON_INTERCEPTOR_READ_RANGE(ctx, hdrp, __user_cap_header_struct_sz); 5392 // FIXME: under ASan the call below may write to freed memory and corrupt 5393 // its metadata. See 5394 // https://github.com/google/sanitizers/issues/321. 5395 int res = REAL(capget)(hdrp, datap); 5396 if (res == 0 && datap) 5397 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, datap, __user_cap_data_struct_sz); 5398 // We can also return -1 and write to hdrp->version if the version passed in 5399 // hdrp->version is unsupported. But that's not a trivial condition to check, 5400 // and anyway COMMON_INTERCEPTOR_READ_RANGE protects us to some extent. 5401 return res; 5402 } 5403 INTERCEPTOR(int, capset, void *hdrp, const void *datap) { 5404 void *ctx; 5405 COMMON_INTERCEPTOR_ENTER(ctx, capset, hdrp, datap); 5406 if (hdrp) 5407 COMMON_INTERCEPTOR_READ_RANGE(ctx, hdrp, __user_cap_header_struct_sz); 5408 if (datap) 5409 COMMON_INTERCEPTOR_READ_RANGE(ctx, datap, __user_cap_data_struct_sz); 5410 return REAL(capset)(hdrp, datap); 5411 } 5412 #define INIT_CAPGET \ 5413 COMMON_INTERCEPT_FUNCTION(capget); \ 5414 COMMON_INTERCEPT_FUNCTION(capset); 5415 #else 5416 #define INIT_CAPGET 5417 #endif 5418 5419 #if SANITIZER_INTERCEPT_AEABI_MEM 5420 INTERCEPTOR(void *, __aeabi_memmove, void *to, const void *from, uptr size) { 5421 void *ctx; 5422 COMMON_INTERCEPTOR_MEMMOVE_IMPL(ctx, to, from, size); 5423 } 5424 5425 INTERCEPTOR(void *, __aeabi_memmove4, void *to, const void *from, uptr size) { 5426 void *ctx; 5427 COMMON_INTERCEPTOR_MEMMOVE_IMPL(ctx, to, from, size); 5428 } 5429 5430 INTERCEPTOR(void *, __aeabi_memmove8, void *to, const void *from, uptr size) { 5431 void *ctx; 5432 COMMON_INTERCEPTOR_MEMMOVE_IMPL(ctx, to, from, size); 5433 } 5434 5435 INTERCEPTOR(void *, __aeabi_memcpy, void *to, const void *from, uptr size) { 5436 void *ctx; 5437 COMMON_INTERCEPTOR_MEMCPY_IMPL(ctx, to, from, size); 5438 } 5439 5440 INTERCEPTOR(void *, __aeabi_memcpy4, void *to, const void *from, uptr size) { 5441 void *ctx; 5442 COMMON_INTERCEPTOR_MEMCPY_IMPL(ctx, to, from, size); 5443 } 5444 5445 INTERCEPTOR(void *, __aeabi_memcpy8, void *to, const void *from, uptr size) { 5446 void *ctx; 5447 COMMON_INTERCEPTOR_MEMCPY_IMPL(ctx, to, from, size); 5448 } 5449 5450 // Note the argument order. 5451 INTERCEPTOR(void *, __aeabi_memset, void *block, uptr size, int c) { 5452 void *ctx; 5453 COMMON_INTERCEPTOR_MEMSET_IMPL(ctx, block, c, size); 5454 } 5455 5456 INTERCEPTOR(void *, __aeabi_memset4, void *block, uptr size, int c) { 5457 void *ctx; 5458 COMMON_INTERCEPTOR_MEMSET_IMPL(ctx, block, c, size); 5459 } 5460 5461 INTERCEPTOR(void *, __aeabi_memset8, void *block, uptr size, int c) { 5462 void *ctx; 5463 COMMON_INTERCEPTOR_MEMSET_IMPL(ctx, block, c, size); 5464 } 5465 5466 INTERCEPTOR(void *, __aeabi_memclr, void *block, uptr size) { 5467 void *ctx; 5468 COMMON_INTERCEPTOR_MEMSET_IMPL(ctx, block, 0, size); 5469 } 5470 5471 INTERCEPTOR(void *, __aeabi_memclr4, void *block, uptr size) { 5472 void *ctx; 5473 COMMON_INTERCEPTOR_MEMSET_IMPL(ctx, block, 0, size); 5474 } 5475 5476 INTERCEPTOR(void *, __aeabi_memclr8, void *block, uptr size) { 5477 void *ctx; 5478 COMMON_INTERCEPTOR_MEMSET_IMPL(ctx, block, 0, size); 5479 } 5480 5481 #define INIT_AEABI_MEM \ 5482 COMMON_INTERCEPT_FUNCTION(__aeabi_memmove); \ 5483 COMMON_INTERCEPT_FUNCTION(__aeabi_memmove4); \ 5484 COMMON_INTERCEPT_FUNCTION(__aeabi_memmove8); \ 5485 COMMON_INTERCEPT_FUNCTION(__aeabi_memcpy); \ 5486 COMMON_INTERCEPT_FUNCTION(__aeabi_memcpy4); \ 5487 COMMON_INTERCEPT_FUNCTION(__aeabi_memcpy8); \ 5488 COMMON_INTERCEPT_FUNCTION(__aeabi_memset); \ 5489 COMMON_INTERCEPT_FUNCTION(__aeabi_memset4); \ 5490 COMMON_INTERCEPT_FUNCTION(__aeabi_memset8); \ 5491 COMMON_INTERCEPT_FUNCTION(__aeabi_memclr); \ 5492 COMMON_INTERCEPT_FUNCTION(__aeabi_memclr4); \ 5493 COMMON_INTERCEPT_FUNCTION(__aeabi_memclr8); 5494 #else 5495 #define INIT_AEABI_MEM 5496 #endif // SANITIZER_INTERCEPT_AEABI_MEM 5497 5498 #if SANITIZER_INTERCEPT___BZERO 5499 INTERCEPTOR(void *, __bzero, void *block, uptr size) { 5500 void *ctx; 5501 COMMON_INTERCEPTOR_MEMSET_IMPL(ctx, block, 0, size); 5502 } 5503 5504 #define INIT___BZERO COMMON_INTERCEPT_FUNCTION(__bzero); 5505 #else 5506 #define INIT___BZERO 5507 #endif // SANITIZER_INTERCEPT___BZERO 5508 5509 #if SANITIZER_INTERCEPT_FTIME 5510 INTERCEPTOR(int, ftime, __sanitizer_timeb *tp) { 5511 void *ctx; 5512 COMMON_INTERCEPTOR_ENTER(ctx, ftime, tp); 5513 // FIXME: under ASan the call below may write to freed memory and corrupt 5514 // its metadata. See 5515 // https://github.com/google/sanitizers/issues/321. 5516 int res = REAL(ftime)(tp); 5517 if (tp) 5518 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, tp, sizeof(*tp)); 5519 return res; 5520 } 5521 #define INIT_FTIME COMMON_INTERCEPT_FUNCTION(ftime); 5522 #else 5523 #define INIT_FTIME 5524 #endif // SANITIZER_INTERCEPT_FTIME 5525 5526 #if SANITIZER_INTERCEPT_XDR 5527 INTERCEPTOR(void, xdrmem_create, __sanitizer_XDR *xdrs, uptr addr, 5528 unsigned size, int op) { 5529 void *ctx; 5530 COMMON_INTERCEPTOR_ENTER(ctx, xdrmem_create, xdrs, addr, size, op); 5531 // FIXME: under ASan the call below may write to freed memory and corrupt 5532 // its metadata. See 5533 // https://github.com/google/sanitizers/issues/321. 5534 REAL(xdrmem_create)(xdrs, addr, size, op); 5535 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, xdrs, sizeof(*xdrs)); 5536 if (op == __sanitizer_XDR_ENCODE) { 5537 // It's not obvious how much data individual xdr_ routines write. 5538 // Simply unpoison the entire target buffer in advance. 5539 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, (void *)addr, size); 5540 } 5541 } 5542 5543 INTERCEPTOR(void, xdrstdio_create, __sanitizer_XDR *xdrs, void *file, int op) { 5544 void *ctx; 5545 COMMON_INTERCEPTOR_ENTER(ctx, xdrstdio_create, xdrs, file, op); 5546 // FIXME: under ASan the call below may write to freed memory and corrupt 5547 // its metadata. See 5548 // https://github.com/google/sanitizers/issues/321. 5549 REAL(xdrstdio_create)(xdrs, file, op); 5550 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, xdrs, sizeof(*xdrs)); 5551 } 5552 5553 // FIXME: under ASan the call below may write to freed memory and corrupt 5554 // its metadata. See 5555 // https://github.com/google/sanitizers/issues/321. 5556 #define XDR_INTERCEPTOR(F, T) \ 5557 INTERCEPTOR(int, F, __sanitizer_XDR *xdrs, T *p) { \ 5558 void *ctx; \ 5559 COMMON_INTERCEPTOR_ENTER(ctx, F, xdrs, p); \ 5560 if (p && xdrs->x_op == __sanitizer_XDR_ENCODE) \ 5561 COMMON_INTERCEPTOR_READ_RANGE(ctx, p, sizeof(*p)); \ 5562 int res = REAL(F)(xdrs, p); \ 5563 if (res && p && xdrs->x_op == __sanitizer_XDR_DECODE) \ 5564 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, p, sizeof(*p)); \ 5565 return res; \ 5566 } 5567 5568 XDR_INTERCEPTOR(xdr_short, short) 5569 XDR_INTERCEPTOR(xdr_u_short, unsigned short) 5570 XDR_INTERCEPTOR(xdr_int, int) 5571 XDR_INTERCEPTOR(xdr_u_int, unsigned) 5572 XDR_INTERCEPTOR(xdr_long, long) 5573 XDR_INTERCEPTOR(xdr_u_long, unsigned long) 5574 XDR_INTERCEPTOR(xdr_hyper, long long) 5575 XDR_INTERCEPTOR(xdr_u_hyper, unsigned long long) 5576 XDR_INTERCEPTOR(xdr_longlong_t, long long) 5577 XDR_INTERCEPTOR(xdr_u_longlong_t, unsigned long long) 5578 XDR_INTERCEPTOR(xdr_int8_t, u8) 5579 XDR_INTERCEPTOR(xdr_uint8_t, u8) 5580 XDR_INTERCEPTOR(xdr_int16_t, u16) 5581 XDR_INTERCEPTOR(xdr_uint16_t, u16) 5582 XDR_INTERCEPTOR(xdr_int32_t, u32) 5583 XDR_INTERCEPTOR(xdr_uint32_t, u32) 5584 XDR_INTERCEPTOR(xdr_int64_t, u64) 5585 XDR_INTERCEPTOR(xdr_uint64_t, u64) 5586 XDR_INTERCEPTOR(xdr_quad_t, long long) 5587 XDR_INTERCEPTOR(xdr_u_quad_t, unsigned long long) 5588 XDR_INTERCEPTOR(xdr_bool, bool) 5589 XDR_INTERCEPTOR(xdr_enum, int) 5590 XDR_INTERCEPTOR(xdr_char, char) 5591 XDR_INTERCEPTOR(xdr_u_char, unsigned char) 5592 XDR_INTERCEPTOR(xdr_float, float) 5593 XDR_INTERCEPTOR(xdr_double, double) 5594 5595 // FIXME: intercept xdr_array, opaque, union, vector, reference, pointer, 5596 // wrapstring, sizeof 5597 5598 INTERCEPTOR(int, xdr_bytes, __sanitizer_XDR *xdrs, char **p, unsigned *sizep, 5599 unsigned maxsize) { 5600 void *ctx; 5601 COMMON_INTERCEPTOR_ENTER(ctx, xdr_bytes, xdrs, p, sizep, maxsize); 5602 if (p && sizep && xdrs->x_op == __sanitizer_XDR_ENCODE) { 5603 COMMON_INTERCEPTOR_READ_RANGE(ctx, p, sizeof(*p)); 5604 COMMON_INTERCEPTOR_READ_RANGE(ctx, sizep, sizeof(*sizep)); 5605 COMMON_INTERCEPTOR_READ_RANGE(ctx, *p, *sizep); 5606 } 5607 // FIXME: under ASan the call below may write to freed memory and corrupt 5608 // its metadata. See 5609 // https://github.com/google/sanitizers/issues/321. 5610 int res = REAL(xdr_bytes)(xdrs, p, sizep, maxsize); 5611 if (p && sizep && xdrs->x_op == __sanitizer_XDR_DECODE) { 5612 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, p, sizeof(*p)); 5613 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, sizep, sizeof(*sizep)); 5614 if (res && *p && *sizep) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, *p, *sizep); 5615 } 5616 return res; 5617 } 5618 5619 INTERCEPTOR(int, xdr_string, __sanitizer_XDR *xdrs, char **p, 5620 unsigned maxsize) { 5621 void *ctx; 5622 COMMON_INTERCEPTOR_ENTER(ctx, xdr_string, xdrs, p, maxsize); 5623 if (p && xdrs->x_op == __sanitizer_XDR_ENCODE) { 5624 COMMON_INTERCEPTOR_READ_RANGE(ctx, p, sizeof(*p)); 5625 COMMON_INTERCEPTOR_READ_RANGE(ctx, *p, REAL(strlen)(*p) + 1); 5626 } 5627 // FIXME: under ASan the call below may write to freed memory and corrupt 5628 // its metadata. See 5629 // https://github.com/google/sanitizers/issues/321. 5630 int res = REAL(xdr_string)(xdrs, p, maxsize); 5631 if (p && xdrs->x_op == __sanitizer_XDR_DECODE) { 5632 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, p, sizeof(*p)); 5633 if (res && *p) 5634 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, *p, REAL(strlen)(*p) + 1); 5635 } 5636 return res; 5637 } 5638 5639 #define INIT_XDR \ 5640 COMMON_INTERCEPT_FUNCTION(xdrmem_create); \ 5641 COMMON_INTERCEPT_FUNCTION(xdrstdio_create); \ 5642 COMMON_INTERCEPT_FUNCTION(xdr_short); \ 5643 COMMON_INTERCEPT_FUNCTION(xdr_u_short); \ 5644 COMMON_INTERCEPT_FUNCTION(xdr_int); \ 5645 COMMON_INTERCEPT_FUNCTION(xdr_u_int); \ 5646 COMMON_INTERCEPT_FUNCTION(xdr_long); \ 5647 COMMON_INTERCEPT_FUNCTION(xdr_u_long); \ 5648 COMMON_INTERCEPT_FUNCTION(xdr_hyper); \ 5649 COMMON_INTERCEPT_FUNCTION(xdr_u_hyper); \ 5650 COMMON_INTERCEPT_FUNCTION(xdr_longlong_t); \ 5651 COMMON_INTERCEPT_FUNCTION(xdr_u_longlong_t); \ 5652 COMMON_INTERCEPT_FUNCTION(xdr_int8_t); \ 5653 COMMON_INTERCEPT_FUNCTION(xdr_uint8_t); \ 5654 COMMON_INTERCEPT_FUNCTION(xdr_int16_t); \ 5655 COMMON_INTERCEPT_FUNCTION(xdr_uint16_t); \ 5656 COMMON_INTERCEPT_FUNCTION(xdr_int32_t); \ 5657 COMMON_INTERCEPT_FUNCTION(xdr_uint32_t); \ 5658 COMMON_INTERCEPT_FUNCTION(xdr_int64_t); \ 5659 COMMON_INTERCEPT_FUNCTION(xdr_uint64_t); \ 5660 COMMON_INTERCEPT_FUNCTION(xdr_quad_t); \ 5661 COMMON_INTERCEPT_FUNCTION(xdr_u_quad_t); \ 5662 COMMON_INTERCEPT_FUNCTION(xdr_bool); \ 5663 COMMON_INTERCEPT_FUNCTION(xdr_enum); \ 5664 COMMON_INTERCEPT_FUNCTION(xdr_char); \ 5665 COMMON_INTERCEPT_FUNCTION(xdr_u_char); \ 5666 COMMON_INTERCEPT_FUNCTION(xdr_float); \ 5667 COMMON_INTERCEPT_FUNCTION(xdr_double); \ 5668 COMMON_INTERCEPT_FUNCTION(xdr_bytes); \ 5669 COMMON_INTERCEPT_FUNCTION(xdr_string); 5670 #else 5671 #define INIT_XDR 5672 #endif // SANITIZER_INTERCEPT_XDR 5673 5674 #if SANITIZER_INTERCEPT_TSEARCH 5675 INTERCEPTOR(void *, tsearch, void *key, void **rootp, 5676 int (*compar)(const void *, const void *)) { 5677 void *ctx; 5678 COMMON_INTERCEPTOR_ENTER(ctx, tsearch, key, rootp, compar); 5679 // FIXME: under ASan the call below may write to freed memory and corrupt 5680 // its metadata. See 5681 // https://github.com/google/sanitizers/issues/321. 5682 void *res = REAL(tsearch)(key, rootp, compar); 5683 if (res && *(void **)res == key) 5684 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, res, sizeof(void *)); 5685 return res; 5686 } 5687 #define INIT_TSEARCH COMMON_INTERCEPT_FUNCTION(tsearch); 5688 #else 5689 #define INIT_TSEARCH 5690 #endif 5691 5692 #if SANITIZER_INTERCEPT_LIBIO_INTERNALS || SANITIZER_INTERCEPT_FOPEN || \ 5693 SANITIZER_INTERCEPT_OPEN_MEMSTREAM 5694 void unpoison_file(__sanitizer_FILE *fp) { 5695 #if SANITIZER_HAS_STRUCT_FILE 5696 COMMON_INTERCEPTOR_INITIALIZE_RANGE(fp, sizeof(*fp)); 5697 if (fp->_IO_read_base && fp->_IO_read_base < fp->_IO_read_end) 5698 COMMON_INTERCEPTOR_INITIALIZE_RANGE(fp->_IO_read_base, 5699 fp->_IO_read_end - fp->_IO_read_base); 5700 #endif // SANITIZER_HAS_STRUCT_FILE 5701 } 5702 #endif 5703 5704 #if SANITIZER_INTERCEPT_LIBIO_INTERNALS 5705 // These guys are called when a .c source is built with -O2. 5706 INTERCEPTOR(int, __uflow, __sanitizer_FILE *fp) { 5707 void *ctx; 5708 COMMON_INTERCEPTOR_ENTER(ctx, __uflow, fp); 5709 int res = REAL(__uflow)(fp); 5710 unpoison_file(fp); 5711 return res; 5712 } 5713 INTERCEPTOR(int, __underflow, __sanitizer_FILE *fp) { 5714 void *ctx; 5715 COMMON_INTERCEPTOR_ENTER(ctx, __underflow, fp); 5716 int res = REAL(__underflow)(fp); 5717 unpoison_file(fp); 5718 return res; 5719 } 5720 INTERCEPTOR(int, __overflow, __sanitizer_FILE *fp, int ch) { 5721 void *ctx; 5722 COMMON_INTERCEPTOR_ENTER(ctx, __overflow, fp, ch); 5723 int res = REAL(__overflow)(fp, ch); 5724 unpoison_file(fp); 5725 return res; 5726 } 5727 INTERCEPTOR(int, __wuflow, __sanitizer_FILE *fp) { 5728 void *ctx; 5729 COMMON_INTERCEPTOR_ENTER(ctx, __wuflow, fp); 5730 int res = REAL(__wuflow)(fp); 5731 unpoison_file(fp); 5732 return res; 5733 } 5734 INTERCEPTOR(int, __wunderflow, __sanitizer_FILE *fp) { 5735 void *ctx; 5736 COMMON_INTERCEPTOR_ENTER(ctx, __wunderflow, fp); 5737 int res = REAL(__wunderflow)(fp); 5738 unpoison_file(fp); 5739 return res; 5740 } 5741 INTERCEPTOR(int, __woverflow, __sanitizer_FILE *fp, int ch) { 5742 void *ctx; 5743 COMMON_INTERCEPTOR_ENTER(ctx, __woverflow, fp, ch); 5744 int res = REAL(__woverflow)(fp, ch); 5745 unpoison_file(fp); 5746 return res; 5747 } 5748 #define INIT_LIBIO_INTERNALS \ 5749 COMMON_INTERCEPT_FUNCTION(__uflow); \ 5750 COMMON_INTERCEPT_FUNCTION(__underflow); \ 5751 COMMON_INTERCEPT_FUNCTION(__overflow); \ 5752 COMMON_INTERCEPT_FUNCTION(__wuflow); \ 5753 COMMON_INTERCEPT_FUNCTION(__wunderflow); \ 5754 COMMON_INTERCEPT_FUNCTION(__woverflow); 5755 #else 5756 #define INIT_LIBIO_INTERNALS 5757 #endif 5758 5759 #if SANITIZER_INTERCEPT_FOPEN 5760 INTERCEPTOR(__sanitizer_FILE *, fopen, const char *path, const char *mode) { 5761 void *ctx; 5762 COMMON_INTERCEPTOR_ENTER(ctx, fopen, path, mode); 5763 if (path) COMMON_INTERCEPTOR_READ_RANGE(ctx, path, REAL(strlen)(path) + 1); 5764 COMMON_INTERCEPTOR_READ_RANGE(ctx, mode, REAL(strlen)(mode) + 1); 5765 __sanitizer_FILE *res = REAL(fopen)(path, mode); 5766 COMMON_INTERCEPTOR_FILE_OPEN(ctx, res, path); 5767 if (res) unpoison_file(res); 5768 return res; 5769 } 5770 INTERCEPTOR(__sanitizer_FILE *, fdopen, int fd, const char *mode) { 5771 void *ctx; 5772 COMMON_INTERCEPTOR_ENTER(ctx, fdopen, fd, mode); 5773 COMMON_INTERCEPTOR_READ_RANGE(ctx, mode, REAL(strlen)(mode) + 1); 5774 __sanitizer_FILE *res = REAL(fdopen)(fd, mode); 5775 if (res) unpoison_file(res); 5776 return res; 5777 } 5778 INTERCEPTOR(__sanitizer_FILE *, freopen, const char *path, const char *mode, 5779 __sanitizer_FILE *fp) { 5780 void *ctx; 5781 COMMON_INTERCEPTOR_ENTER(ctx, freopen, path, mode, fp); 5782 if (path) COMMON_INTERCEPTOR_READ_RANGE(ctx, path, REAL(strlen)(path) + 1); 5783 COMMON_INTERCEPTOR_READ_RANGE(ctx, mode, REAL(strlen)(mode) + 1); 5784 COMMON_INTERCEPTOR_FILE_CLOSE(ctx, fp); 5785 __sanitizer_FILE *res = REAL(freopen)(path, mode, fp); 5786 COMMON_INTERCEPTOR_FILE_OPEN(ctx, res, path); 5787 if (res) unpoison_file(res); 5788 return res; 5789 } 5790 #define INIT_FOPEN \ 5791 COMMON_INTERCEPT_FUNCTION(fopen); \ 5792 COMMON_INTERCEPT_FUNCTION(fdopen); \ 5793 COMMON_INTERCEPT_FUNCTION(freopen); 5794 #else 5795 #define INIT_FOPEN 5796 #endif 5797 5798 #if SANITIZER_INTERCEPT_FOPEN64 5799 INTERCEPTOR(__sanitizer_FILE *, fopen64, const char *path, const char *mode) { 5800 void *ctx; 5801 COMMON_INTERCEPTOR_ENTER(ctx, fopen64, path, mode); 5802 COMMON_INTERCEPTOR_READ_RANGE(ctx, path, REAL(strlen)(path) + 1); 5803 COMMON_INTERCEPTOR_READ_RANGE(ctx, mode, REAL(strlen)(mode) + 1); 5804 __sanitizer_FILE *res = REAL(fopen64)(path, mode); 5805 COMMON_INTERCEPTOR_FILE_OPEN(ctx, res, path); 5806 if (res) unpoison_file(res); 5807 return res; 5808 } 5809 INTERCEPTOR(__sanitizer_FILE *, freopen64, const char *path, const char *mode, 5810 __sanitizer_FILE *fp) { 5811 void *ctx; 5812 COMMON_INTERCEPTOR_ENTER(ctx, freopen64, path, mode, fp); 5813 if (path) COMMON_INTERCEPTOR_READ_RANGE(ctx, path, REAL(strlen)(path) + 1); 5814 COMMON_INTERCEPTOR_READ_RANGE(ctx, mode, REAL(strlen)(mode) + 1); 5815 COMMON_INTERCEPTOR_FILE_CLOSE(ctx, fp); 5816 __sanitizer_FILE *res = REAL(freopen64)(path, mode, fp); 5817 COMMON_INTERCEPTOR_FILE_OPEN(ctx, res, path); 5818 if (res) unpoison_file(res); 5819 return res; 5820 } 5821 #define INIT_FOPEN64 \ 5822 COMMON_INTERCEPT_FUNCTION(fopen64); \ 5823 COMMON_INTERCEPT_FUNCTION(freopen64); 5824 #else 5825 #define INIT_FOPEN64 5826 #endif 5827 5828 #if SANITIZER_INTERCEPT_OPEN_MEMSTREAM 5829 INTERCEPTOR(__sanitizer_FILE *, open_memstream, char **ptr, SIZE_T *sizeloc) { 5830 void *ctx; 5831 COMMON_INTERCEPTOR_ENTER(ctx, open_memstream, ptr, sizeloc); 5832 // FIXME: under ASan the call below may write to freed memory and corrupt 5833 // its metadata. See 5834 // https://github.com/google/sanitizers/issues/321. 5835 __sanitizer_FILE *res = REAL(open_memstream)(ptr, sizeloc); 5836 if (res) { 5837 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, ptr, sizeof(*ptr)); 5838 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, sizeloc, sizeof(*sizeloc)); 5839 unpoison_file(res); 5840 FileMetadata file = {ptr, sizeloc}; 5841 SetInterceptorMetadata(res, file); 5842 } 5843 return res; 5844 } 5845 INTERCEPTOR(__sanitizer_FILE *, open_wmemstream, wchar_t **ptr, 5846 SIZE_T *sizeloc) { 5847 void *ctx; 5848 COMMON_INTERCEPTOR_ENTER(ctx, open_wmemstream, ptr, sizeloc); 5849 __sanitizer_FILE *res = REAL(open_wmemstream)(ptr, sizeloc); 5850 if (res) { 5851 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, ptr, sizeof(*ptr)); 5852 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, sizeloc, sizeof(*sizeloc)); 5853 unpoison_file(res); 5854 FileMetadata file = {(char **)ptr, sizeloc}; 5855 SetInterceptorMetadata(res, file); 5856 } 5857 return res; 5858 } 5859 INTERCEPTOR(__sanitizer_FILE *, fmemopen, void *buf, SIZE_T size, 5860 const char *mode) { 5861 void *ctx; 5862 COMMON_INTERCEPTOR_ENTER(ctx, fmemopen, buf, size, mode); 5863 // FIXME: under ASan the call below may write to freed memory and corrupt 5864 // its metadata. See 5865 // https://github.com/google/sanitizers/issues/321. 5866 __sanitizer_FILE *res = REAL(fmemopen)(buf, size, mode); 5867 if (res) unpoison_file(res); 5868 return res; 5869 } 5870 #define INIT_OPEN_MEMSTREAM \ 5871 COMMON_INTERCEPT_FUNCTION(open_memstream); \ 5872 COMMON_INTERCEPT_FUNCTION(open_wmemstream); \ 5873 COMMON_INTERCEPT_FUNCTION(fmemopen); 5874 #else 5875 #define INIT_OPEN_MEMSTREAM 5876 #endif 5877 5878 #if SANITIZER_INTERCEPT_OBSTACK 5879 static void initialize_obstack(__sanitizer_obstack *obstack) { 5880 COMMON_INTERCEPTOR_INITIALIZE_RANGE(obstack, sizeof(*obstack)); 5881 if (obstack->chunk) 5882 COMMON_INTERCEPTOR_INITIALIZE_RANGE(obstack->chunk, 5883 sizeof(*obstack->chunk)); 5884 } 5885 5886 INTERCEPTOR(int, _obstack_begin_1, __sanitizer_obstack *obstack, int sz, 5887 int align, void *(*alloc_fn)(uptr arg, uptr sz), 5888 void (*free_fn)(uptr arg, void *p)) { 5889 void *ctx; 5890 COMMON_INTERCEPTOR_ENTER(ctx, _obstack_begin_1, obstack, sz, align, alloc_fn, 5891 free_fn); 5892 int res = REAL(_obstack_begin_1)(obstack, sz, align, alloc_fn, free_fn); 5893 if (res) initialize_obstack(obstack); 5894 return res; 5895 } 5896 INTERCEPTOR(int, _obstack_begin, __sanitizer_obstack *obstack, int sz, 5897 int align, void *(*alloc_fn)(uptr sz), void (*free_fn)(void *p)) { 5898 void *ctx; 5899 COMMON_INTERCEPTOR_ENTER(ctx, _obstack_begin, obstack, sz, align, alloc_fn, 5900 free_fn); 5901 int res = REAL(_obstack_begin)(obstack, sz, align, alloc_fn, free_fn); 5902 if (res) initialize_obstack(obstack); 5903 return res; 5904 } 5905 INTERCEPTOR(void, _obstack_newchunk, __sanitizer_obstack *obstack, int length) { 5906 void *ctx; 5907 COMMON_INTERCEPTOR_ENTER(ctx, _obstack_newchunk, obstack, length); 5908 REAL(_obstack_newchunk)(obstack, length); 5909 if (obstack->chunk) 5910 COMMON_INTERCEPTOR_INITIALIZE_RANGE( 5911 obstack->chunk, obstack->next_free - (char *)obstack->chunk); 5912 } 5913 #define INIT_OBSTACK \ 5914 COMMON_INTERCEPT_FUNCTION(_obstack_begin_1); \ 5915 COMMON_INTERCEPT_FUNCTION(_obstack_begin); \ 5916 COMMON_INTERCEPT_FUNCTION(_obstack_newchunk); 5917 #else 5918 #define INIT_OBSTACK 5919 #endif 5920 5921 #if SANITIZER_INTERCEPT_FFLUSH 5922 INTERCEPTOR(int, fflush, __sanitizer_FILE *fp) { 5923 void *ctx; 5924 COMMON_INTERCEPTOR_ENTER(ctx, fflush, fp); 5925 int res = REAL(fflush)(fp); 5926 // FIXME: handle fp == NULL 5927 if (fp) { 5928 const FileMetadata *m = GetInterceptorMetadata(fp); 5929 if (m) COMMON_INTERCEPTOR_INITIALIZE_RANGE(*m->addr, *m->size); 5930 } 5931 return res; 5932 } 5933 #define INIT_FFLUSH COMMON_INTERCEPT_FUNCTION(fflush); 5934 #else 5935 #define INIT_FFLUSH 5936 #endif 5937 5938 #if SANITIZER_INTERCEPT_FCLOSE 5939 INTERCEPTOR(int, fclose, __sanitizer_FILE *fp) { 5940 void *ctx; 5941 COMMON_INTERCEPTOR_ENTER(ctx, fclose, fp); 5942 COMMON_INTERCEPTOR_FILE_CLOSE(ctx, fp); 5943 const FileMetadata *m = GetInterceptorMetadata(fp); 5944 int res = REAL(fclose)(fp); 5945 if (m) { 5946 COMMON_INTERCEPTOR_INITIALIZE_RANGE(*m->addr, *m->size); 5947 DeleteInterceptorMetadata(fp); 5948 } 5949 return res; 5950 } 5951 #define INIT_FCLOSE COMMON_INTERCEPT_FUNCTION(fclose); 5952 #else 5953 #define INIT_FCLOSE 5954 #endif 5955 5956 #if SANITIZER_INTERCEPT_DLOPEN_DLCLOSE 5957 INTERCEPTOR(void*, dlopen, const char *filename, int flag) { 5958 void *ctx; 5959 COMMON_INTERCEPTOR_ENTER_NOIGNORE(ctx, dlopen, filename, flag); 5960 if (filename) COMMON_INTERCEPTOR_READ_STRING(ctx, filename, 0); 5961 COMMON_INTERCEPTOR_ON_DLOPEN(filename, flag); 5962 void *res = REAL(dlopen)(filename, flag); 5963 Symbolizer::GetOrInit()->InvalidateModuleList(); 5964 COMMON_INTERCEPTOR_LIBRARY_LOADED(filename, res); 5965 return res; 5966 } 5967 5968 INTERCEPTOR(int, dlclose, void *handle) { 5969 void *ctx; 5970 COMMON_INTERCEPTOR_ENTER_NOIGNORE(ctx, dlclose, handle); 5971 int res = REAL(dlclose)(handle); 5972 Symbolizer::GetOrInit()->InvalidateModuleList(); 5973 COMMON_INTERCEPTOR_LIBRARY_UNLOADED(); 5974 return res; 5975 } 5976 #define INIT_DLOPEN_DLCLOSE \ 5977 COMMON_INTERCEPT_FUNCTION(dlopen); \ 5978 COMMON_INTERCEPT_FUNCTION(dlclose); 5979 #else 5980 #define INIT_DLOPEN_DLCLOSE 5981 #endif 5982 5983 #if SANITIZER_INTERCEPT_GETPASS 5984 INTERCEPTOR(char *, getpass, const char *prompt) { 5985 void *ctx; 5986 COMMON_INTERCEPTOR_ENTER(ctx, getpass, prompt); 5987 if (prompt) 5988 COMMON_INTERCEPTOR_READ_RANGE(ctx, prompt, REAL(strlen)(prompt)+1); 5989 char *res = REAL(getpass)(prompt); 5990 if (res) COMMON_INTERCEPTOR_INITIALIZE_RANGE(res, REAL(strlen)(res)+1); 5991 return res; 5992 } 5993 5994 #define INIT_GETPASS COMMON_INTERCEPT_FUNCTION(getpass); 5995 #else 5996 #define INIT_GETPASS 5997 #endif 5998 5999 #if SANITIZER_INTERCEPT_TIMERFD 6000 INTERCEPTOR(int, timerfd_settime, int fd, int flags, void *new_value, 6001 void *old_value) { 6002 void *ctx; 6003 COMMON_INTERCEPTOR_ENTER(ctx, timerfd_settime, fd, flags, new_value, 6004 old_value); 6005 COMMON_INTERCEPTOR_READ_RANGE(ctx, new_value, struct_itimerspec_sz); 6006 int res = REAL(timerfd_settime)(fd, flags, new_value, old_value); 6007 if (res != -1 && old_value) 6008 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, old_value, struct_itimerspec_sz); 6009 return res; 6010 } 6011 6012 INTERCEPTOR(int, timerfd_gettime, int fd, void *curr_value) { 6013 void *ctx; 6014 COMMON_INTERCEPTOR_ENTER(ctx, timerfd_gettime, fd, curr_value); 6015 int res = REAL(timerfd_gettime)(fd, curr_value); 6016 if (res != -1 && curr_value) 6017 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, curr_value, struct_itimerspec_sz); 6018 return res; 6019 } 6020 #define INIT_TIMERFD \ 6021 COMMON_INTERCEPT_FUNCTION(timerfd_settime); \ 6022 COMMON_INTERCEPT_FUNCTION(timerfd_gettime); 6023 #else 6024 #define INIT_TIMERFD 6025 #endif 6026 6027 #if SANITIZER_INTERCEPT_MLOCKX 6028 // Linux kernel has a bug that leads to kernel deadlock if a process 6029 // maps TBs of memory and then calls mlock(). 6030 static void MlockIsUnsupported() { 6031 static atomic_uint8_t printed; 6032 if (atomic_exchange(&printed, 1, memory_order_relaxed)) 6033 return; 6034 VPrintf(1, "%s ignores mlock/mlockall/munlock/munlockall\n", 6035 SanitizerToolName); 6036 } 6037 6038 INTERCEPTOR(int, mlock, const void *addr, uptr len) { 6039 MlockIsUnsupported(); 6040 return 0; 6041 } 6042 6043 INTERCEPTOR(int, munlock, const void *addr, uptr len) { 6044 MlockIsUnsupported(); 6045 return 0; 6046 } 6047 6048 INTERCEPTOR(int, mlockall, int flags) { 6049 MlockIsUnsupported(); 6050 return 0; 6051 } 6052 6053 INTERCEPTOR(int, munlockall, void) { 6054 MlockIsUnsupported(); 6055 return 0; 6056 } 6057 6058 #define INIT_MLOCKX \ 6059 COMMON_INTERCEPT_FUNCTION(mlock); \ 6060 COMMON_INTERCEPT_FUNCTION(munlock); \ 6061 COMMON_INTERCEPT_FUNCTION(mlockall); \ 6062 COMMON_INTERCEPT_FUNCTION(munlockall); 6063 6064 #else 6065 #define INIT_MLOCKX 6066 #endif // SANITIZER_INTERCEPT_MLOCKX 6067 6068 #if SANITIZER_INTERCEPT_FOPENCOOKIE 6069 struct WrappedCookie { 6070 void *real_cookie; 6071 __sanitizer_cookie_io_functions_t real_io_funcs; 6072 }; 6073 6074 static uptr wrapped_read(void *cookie, char *buf, uptr size) { 6075 COMMON_INTERCEPTOR_UNPOISON_PARAM(3); 6076 WrappedCookie *wrapped_cookie = (WrappedCookie *)cookie; 6077 __sanitizer_cookie_io_read real_read = wrapped_cookie->real_io_funcs.read; 6078 return real_read ? real_read(wrapped_cookie->real_cookie, buf, size) : 0; 6079 } 6080 6081 static uptr wrapped_write(void *cookie, const char *buf, uptr size) { 6082 COMMON_INTERCEPTOR_UNPOISON_PARAM(3); 6083 WrappedCookie *wrapped_cookie = (WrappedCookie *)cookie; 6084 __sanitizer_cookie_io_write real_write = wrapped_cookie->real_io_funcs.write; 6085 return real_write ? real_write(wrapped_cookie->real_cookie, buf, size) : size; 6086 } 6087 6088 static int wrapped_seek(void *cookie, u64 *offset, int whence) { 6089 COMMON_INTERCEPTOR_UNPOISON_PARAM(3); 6090 COMMON_INTERCEPTOR_INITIALIZE_RANGE(offset, sizeof(*offset)); 6091 WrappedCookie *wrapped_cookie = (WrappedCookie *)cookie; 6092 __sanitizer_cookie_io_seek real_seek = wrapped_cookie->real_io_funcs.seek; 6093 return real_seek ? real_seek(wrapped_cookie->real_cookie, offset, whence) 6094 : -1; 6095 } 6096 6097 static int wrapped_close(void *cookie) { 6098 COMMON_INTERCEPTOR_UNPOISON_PARAM(1); 6099 WrappedCookie *wrapped_cookie = (WrappedCookie *)cookie; 6100 __sanitizer_cookie_io_close real_close = wrapped_cookie->real_io_funcs.close; 6101 int res = real_close ? real_close(wrapped_cookie->real_cookie) : 0; 6102 InternalFree(wrapped_cookie); 6103 return res; 6104 } 6105 6106 INTERCEPTOR(__sanitizer_FILE *, fopencookie, void *cookie, const char *mode, 6107 __sanitizer_cookie_io_functions_t io_funcs) { 6108 void *ctx; 6109 COMMON_INTERCEPTOR_ENTER(ctx, fopencookie, cookie, mode, io_funcs); 6110 WrappedCookie *wrapped_cookie = 6111 (WrappedCookie *)InternalAlloc(sizeof(WrappedCookie)); 6112 wrapped_cookie->real_cookie = cookie; 6113 wrapped_cookie->real_io_funcs = io_funcs; 6114 __sanitizer_FILE *res = 6115 REAL(fopencookie)(wrapped_cookie, mode, {wrapped_read, wrapped_write, 6116 wrapped_seek, wrapped_close}); 6117 return res; 6118 } 6119 6120 #define INIT_FOPENCOOKIE COMMON_INTERCEPT_FUNCTION(fopencookie); 6121 #else 6122 #define INIT_FOPENCOOKIE 6123 #endif // SANITIZER_INTERCEPT_FOPENCOOKIE 6124 6125 #if SANITIZER_INTERCEPT_SEM 6126 INTERCEPTOR(int, sem_init, __sanitizer_sem_t *s, int pshared, unsigned value) { 6127 void *ctx; 6128 COMMON_INTERCEPTOR_ENTER(ctx, sem_init, s, pshared, value); 6129 // Workaround a bug in glibc's "old" semaphore implementation by 6130 // zero-initializing the sem_t contents. This has to be done here because 6131 // interceptors bind to the lowest symbols version by default, hitting the 6132 // buggy code path while the non-sanitized build of the same code works fine. 6133 REAL(memset)(s, 0, sizeof(*s)); 6134 int res = REAL(sem_init)(s, pshared, value); 6135 return res; 6136 } 6137 6138 INTERCEPTOR(int, sem_destroy, __sanitizer_sem_t *s) { 6139 void *ctx; 6140 COMMON_INTERCEPTOR_ENTER(ctx, sem_destroy, s); 6141 int res = REAL(sem_destroy)(s); 6142 return res; 6143 } 6144 6145 INTERCEPTOR(int, sem_wait, __sanitizer_sem_t *s) { 6146 void *ctx; 6147 COMMON_INTERCEPTOR_ENTER(ctx, sem_wait, s); 6148 int res = COMMON_INTERCEPTOR_BLOCK_REAL(sem_wait)(s); 6149 if (res == 0) { 6150 COMMON_INTERCEPTOR_ACQUIRE(ctx, (uptr)s); 6151 } 6152 return res; 6153 } 6154 6155 INTERCEPTOR(int, sem_trywait, __sanitizer_sem_t *s) { 6156 void *ctx; 6157 COMMON_INTERCEPTOR_ENTER(ctx, sem_trywait, s); 6158 int res = COMMON_INTERCEPTOR_BLOCK_REAL(sem_trywait)(s); 6159 if (res == 0) { 6160 COMMON_INTERCEPTOR_ACQUIRE(ctx, (uptr)s); 6161 } 6162 return res; 6163 } 6164 6165 INTERCEPTOR(int, sem_timedwait, __sanitizer_sem_t *s, void *abstime) { 6166 void *ctx; 6167 COMMON_INTERCEPTOR_ENTER(ctx, sem_timedwait, s, abstime); 6168 COMMON_INTERCEPTOR_READ_RANGE(ctx, abstime, struct_timespec_sz); 6169 int res = COMMON_INTERCEPTOR_BLOCK_REAL(sem_timedwait)(s, abstime); 6170 if (res == 0) { 6171 COMMON_INTERCEPTOR_ACQUIRE(ctx, (uptr)s); 6172 } 6173 return res; 6174 } 6175 6176 INTERCEPTOR(int, sem_post, __sanitizer_sem_t *s) { 6177 void *ctx; 6178 COMMON_INTERCEPTOR_ENTER(ctx, sem_post, s); 6179 COMMON_INTERCEPTOR_RELEASE(ctx, (uptr)s); 6180 int res = REAL(sem_post)(s); 6181 return res; 6182 } 6183 6184 INTERCEPTOR(int, sem_getvalue, __sanitizer_sem_t *s, int *sval) { 6185 void *ctx; 6186 COMMON_INTERCEPTOR_ENTER(ctx, sem_getvalue, s, sval); 6187 int res = REAL(sem_getvalue)(s, sval); 6188 if (res == 0) { 6189 COMMON_INTERCEPTOR_ACQUIRE(ctx, (uptr)s); 6190 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, sval, sizeof(*sval)); 6191 } 6192 return res; 6193 } 6194 #define INIT_SEM \ 6195 COMMON_INTERCEPT_FUNCTION(sem_init); \ 6196 COMMON_INTERCEPT_FUNCTION(sem_destroy); \ 6197 COMMON_INTERCEPT_FUNCTION(sem_wait); \ 6198 COMMON_INTERCEPT_FUNCTION(sem_trywait); \ 6199 COMMON_INTERCEPT_FUNCTION(sem_timedwait); \ 6200 COMMON_INTERCEPT_FUNCTION(sem_post); \ 6201 COMMON_INTERCEPT_FUNCTION(sem_getvalue); 6202 #else 6203 #define INIT_SEM 6204 #endif // SANITIZER_INTERCEPT_SEM 6205 6206 #if SANITIZER_INTERCEPT_PTHREAD_SETCANCEL 6207 INTERCEPTOR(int, pthread_setcancelstate, int state, int *oldstate) { 6208 void *ctx; 6209 COMMON_INTERCEPTOR_ENTER(ctx, pthread_setcancelstate, state, oldstate); 6210 int res = REAL(pthread_setcancelstate)(state, oldstate); 6211 if (res == 0 && oldstate != nullptr) 6212 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, oldstate, sizeof(*oldstate)); 6213 return res; 6214 } 6215 6216 INTERCEPTOR(int, pthread_setcanceltype, int type, int *oldtype) { 6217 void *ctx; 6218 COMMON_INTERCEPTOR_ENTER(ctx, pthread_setcanceltype, type, oldtype); 6219 int res = REAL(pthread_setcanceltype)(type, oldtype); 6220 if (res == 0 && oldtype != nullptr) 6221 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, oldtype, sizeof(*oldtype)); 6222 return res; 6223 } 6224 #define INIT_PTHREAD_SETCANCEL \ 6225 COMMON_INTERCEPT_FUNCTION(pthread_setcancelstate); \ 6226 COMMON_INTERCEPT_FUNCTION(pthread_setcanceltype); 6227 #else 6228 #define INIT_PTHREAD_SETCANCEL 6229 #endif 6230 6231 #if SANITIZER_INTERCEPT_MINCORE 6232 INTERCEPTOR(int, mincore, void *addr, uptr length, unsigned char *vec) { 6233 void *ctx; 6234 COMMON_INTERCEPTOR_ENTER(ctx, mincore, addr, length, vec); 6235 int res = REAL(mincore)(addr, length, vec); 6236 if (res == 0) { 6237 uptr page_size = GetPageSizeCached(); 6238 uptr vec_size = ((length + page_size - 1) & (~(page_size - 1))) / page_size; 6239 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, vec, vec_size); 6240 } 6241 return res; 6242 } 6243 #define INIT_MINCORE COMMON_INTERCEPT_FUNCTION(mincore); 6244 #else 6245 #define INIT_MINCORE 6246 #endif 6247 6248 #if SANITIZER_INTERCEPT_PROCESS_VM_READV 6249 INTERCEPTOR(SSIZE_T, process_vm_readv, int pid, __sanitizer_iovec *local_iov, 6250 uptr liovcnt, __sanitizer_iovec *remote_iov, uptr riovcnt, 6251 uptr flags) { 6252 void *ctx; 6253 COMMON_INTERCEPTOR_ENTER(ctx, process_vm_readv, pid, local_iov, liovcnt, 6254 remote_iov, riovcnt, flags); 6255 SSIZE_T res = REAL(process_vm_readv)(pid, local_iov, liovcnt, remote_iov, 6256 riovcnt, flags); 6257 if (res > 0) 6258 write_iovec(ctx, local_iov, liovcnt, res); 6259 return res; 6260 } 6261 6262 INTERCEPTOR(SSIZE_T, process_vm_writev, int pid, __sanitizer_iovec *local_iov, 6263 uptr liovcnt, __sanitizer_iovec *remote_iov, uptr riovcnt, 6264 uptr flags) { 6265 void *ctx; 6266 COMMON_INTERCEPTOR_ENTER(ctx, process_vm_writev, pid, local_iov, liovcnt, 6267 remote_iov, riovcnt, flags); 6268 SSIZE_T res = REAL(process_vm_writev)(pid, local_iov, liovcnt, remote_iov, 6269 riovcnt, flags); 6270 if (res > 0) 6271 read_iovec(ctx, local_iov, liovcnt, res); 6272 return res; 6273 } 6274 #define INIT_PROCESS_VM_READV \ 6275 COMMON_INTERCEPT_FUNCTION(process_vm_readv); \ 6276 COMMON_INTERCEPT_FUNCTION(process_vm_writev); 6277 #else 6278 #define INIT_PROCESS_VM_READV 6279 #endif 6280 6281 #if SANITIZER_INTERCEPT_CTERMID 6282 INTERCEPTOR(char *, ctermid, char *s) { 6283 void *ctx; 6284 COMMON_INTERCEPTOR_ENTER(ctx, ctermid, s); 6285 char *res = REAL(ctermid)(s); 6286 if (res) { 6287 COMMON_INTERCEPTOR_INITIALIZE_RANGE(res, REAL(strlen)(res) + 1); 6288 } 6289 return res; 6290 } 6291 #define INIT_CTERMID COMMON_INTERCEPT_FUNCTION(ctermid); 6292 #else 6293 #define INIT_CTERMID 6294 #endif 6295 6296 #if SANITIZER_INTERCEPT_CTERMID_R 6297 INTERCEPTOR(char *, ctermid_r, char *s) { 6298 void *ctx; 6299 COMMON_INTERCEPTOR_ENTER(ctx, ctermid_r, s); 6300 char *res = REAL(ctermid_r)(s); 6301 if (res) { 6302 COMMON_INTERCEPTOR_INITIALIZE_RANGE(res, REAL(strlen)(res) + 1); 6303 } 6304 return res; 6305 } 6306 #define INIT_CTERMID_R COMMON_INTERCEPT_FUNCTION(ctermid_r); 6307 #else 6308 #define INIT_CTERMID_R 6309 #endif 6310 6311 #if SANITIZER_INTERCEPT_RECV_RECVFROM 6312 INTERCEPTOR(SSIZE_T, recv, int fd, void *buf, SIZE_T len, int flags) { 6313 void *ctx; 6314 COMMON_INTERCEPTOR_ENTER(ctx, recv, fd, buf, len, flags); 6315 COMMON_INTERCEPTOR_FD_ACCESS(ctx, fd); 6316 SSIZE_T res = REAL(recv)(fd, buf, len, flags); 6317 if (res > 0) { 6318 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, buf, Min((SIZE_T)res, len)); 6319 } 6320 if (res >= 0 && fd >= 0) COMMON_INTERCEPTOR_FD_ACQUIRE(ctx, fd); 6321 return res; 6322 } 6323 6324 INTERCEPTOR(SSIZE_T, recvfrom, int fd, void *buf, SIZE_T len, int flags, 6325 void *srcaddr, int *addrlen) { 6326 void *ctx; 6327 COMMON_INTERCEPTOR_ENTER(ctx, recvfrom, fd, buf, len, flags, srcaddr, 6328 addrlen); 6329 COMMON_INTERCEPTOR_FD_ACCESS(ctx, fd); 6330 SIZE_T srcaddr_sz; 6331 if (srcaddr) srcaddr_sz = *addrlen; 6332 (void)srcaddr_sz; // prevent "set but not used" warning 6333 SSIZE_T res = REAL(recvfrom)(fd, buf, len, flags, srcaddr, addrlen); 6334 if (res > 0) { 6335 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, buf, Min((SIZE_T)res, len)); 6336 if (srcaddr) 6337 COMMON_INTERCEPTOR_INITIALIZE_RANGE(srcaddr, 6338 Min((SIZE_T)*addrlen, srcaddr_sz)); 6339 } 6340 return res; 6341 } 6342 #define INIT_RECV_RECVFROM \ 6343 COMMON_INTERCEPT_FUNCTION(recv); \ 6344 COMMON_INTERCEPT_FUNCTION(recvfrom); 6345 #else 6346 #define INIT_RECV_RECVFROM 6347 #endif 6348 6349 #if SANITIZER_INTERCEPT_SEND_SENDTO 6350 INTERCEPTOR(SSIZE_T, send, int fd, void *buf, SIZE_T len, int flags) { 6351 void *ctx; 6352 COMMON_INTERCEPTOR_ENTER(ctx, send, fd, buf, len, flags); 6353 if (fd >= 0) { 6354 COMMON_INTERCEPTOR_FD_ACCESS(ctx, fd); 6355 COMMON_INTERCEPTOR_FD_RELEASE(ctx, fd); 6356 } 6357 SSIZE_T res = REAL(send)(fd, buf, len, flags); 6358 if (common_flags()->intercept_send && res > 0) 6359 COMMON_INTERCEPTOR_READ_RANGE(ctx, buf, Min((SIZE_T)res, len)); 6360 return res; 6361 } 6362 6363 INTERCEPTOR(SSIZE_T, sendto, int fd, void *buf, SIZE_T len, int flags, 6364 void *dstaddr, int addrlen) { 6365 void *ctx; 6366 COMMON_INTERCEPTOR_ENTER(ctx, sendto, fd, buf, len, flags, dstaddr, addrlen); 6367 if (fd >= 0) { 6368 COMMON_INTERCEPTOR_FD_ACCESS(ctx, fd); 6369 COMMON_INTERCEPTOR_FD_RELEASE(ctx, fd); 6370 } 6371 // Can't check dstaddr as it may have uninitialized padding at the end. 6372 SSIZE_T res = REAL(sendto)(fd, buf, len, flags, dstaddr, addrlen); 6373 if (common_flags()->intercept_send && res > 0) 6374 COMMON_INTERCEPTOR_READ_RANGE(ctx, buf, Min((SIZE_T)res, len)); 6375 return res; 6376 } 6377 #define INIT_SEND_SENDTO \ 6378 COMMON_INTERCEPT_FUNCTION(send); \ 6379 COMMON_INTERCEPT_FUNCTION(sendto); 6380 #else 6381 #define INIT_SEND_SENDTO 6382 #endif 6383 6384 #if SANITIZER_INTERCEPT_EVENTFD_READ_WRITE 6385 INTERCEPTOR(int, eventfd_read, int fd, u64 *value) { 6386 void *ctx; 6387 COMMON_INTERCEPTOR_ENTER(ctx, eventfd_read, fd, value); 6388 COMMON_INTERCEPTOR_FD_ACCESS(ctx, fd); 6389 int res = REAL(eventfd_read)(fd, value); 6390 if (res == 0) { 6391 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, value, sizeof(*value)); 6392 if (fd >= 0) COMMON_INTERCEPTOR_FD_ACQUIRE(ctx, fd); 6393 } 6394 return res; 6395 } 6396 INTERCEPTOR(int, eventfd_write, int fd, u64 value) { 6397 void *ctx; 6398 COMMON_INTERCEPTOR_ENTER(ctx, eventfd_write, fd, value); 6399 if (fd >= 0) { 6400 COMMON_INTERCEPTOR_FD_ACCESS(ctx, fd); 6401 COMMON_INTERCEPTOR_FD_RELEASE(ctx, fd); 6402 } 6403 int res = REAL(eventfd_write)(fd, value); 6404 return res; 6405 } 6406 #define INIT_EVENTFD_READ_WRITE \ 6407 COMMON_INTERCEPT_FUNCTION(eventfd_read); \ 6408 COMMON_INTERCEPT_FUNCTION(eventfd_write) 6409 #else 6410 #define INIT_EVENTFD_READ_WRITE 6411 #endif 6412 6413 #if SANITIZER_INTERCEPT_STAT 6414 INTERCEPTOR(int, stat, const char *path, void *buf) { 6415 void *ctx; 6416 COMMON_INTERCEPTOR_ENTER(ctx, stat, path, buf); 6417 if (common_flags()->intercept_stat) 6418 COMMON_INTERCEPTOR_READ_STRING(ctx, path, 0); 6419 int res = REAL(stat)(path, buf); 6420 if (!res) 6421 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, buf, __sanitizer::struct_stat_sz); 6422 return res; 6423 } 6424 #define INIT_STAT COMMON_INTERCEPT_FUNCTION(stat) 6425 #else 6426 #define INIT_STAT 6427 #endif 6428 6429 #if SANITIZER_INTERCEPT_LSTAT 6430 INTERCEPTOR(int, lstat, const char *path, void *buf) { 6431 void *ctx; 6432 COMMON_INTERCEPTOR_ENTER(ctx, lstat, path, buf); 6433 if (common_flags()->intercept_stat) 6434 COMMON_INTERCEPTOR_READ_STRING(ctx, path, 0); 6435 int res = REAL(lstat)(path, buf); 6436 if (!res) 6437 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, buf, __sanitizer::struct_stat_sz); 6438 return res; 6439 } 6440 #define INIT_LSTAT COMMON_INTERCEPT_FUNCTION(lstat) 6441 #else 6442 #define INIT_LSTAT 6443 #endif 6444 6445 #if SANITIZER_INTERCEPT___XSTAT 6446 INTERCEPTOR(int, __xstat, int version, const char *path, void *buf) { 6447 void *ctx; 6448 COMMON_INTERCEPTOR_ENTER(ctx, __xstat, version, path, buf); 6449 if (common_flags()->intercept_stat) 6450 COMMON_INTERCEPTOR_READ_STRING(ctx, path, 0); 6451 int res = REAL(__xstat)(version, path, buf); 6452 if (!res) 6453 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, buf, __sanitizer::struct_stat_sz); 6454 return res; 6455 } 6456 #define INIT___XSTAT COMMON_INTERCEPT_FUNCTION(__xstat) 6457 #else 6458 #define INIT___XSTAT 6459 #endif 6460 6461 #if SANITIZER_INTERCEPT___XSTAT64 6462 INTERCEPTOR(int, __xstat64, int version, const char *path, void *buf) { 6463 void *ctx; 6464 COMMON_INTERCEPTOR_ENTER(ctx, __xstat64, version, path, buf); 6465 if (common_flags()->intercept_stat) 6466 COMMON_INTERCEPTOR_READ_STRING(ctx, path, 0); 6467 int res = REAL(__xstat64)(version, path, buf); 6468 if (!res) 6469 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, buf, __sanitizer::struct_stat64_sz); 6470 return res; 6471 } 6472 #define INIT___XSTAT64 COMMON_INTERCEPT_FUNCTION(__xstat64) 6473 #else 6474 #define INIT___XSTAT64 6475 #endif 6476 6477 #if SANITIZER_INTERCEPT___LXSTAT 6478 INTERCEPTOR(int, __lxstat, int version, const char *path, void *buf) { 6479 void *ctx; 6480 COMMON_INTERCEPTOR_ENTER(ctx, __lxstat, version, path, buf); 6481 if (common_flags()->intercept_stat) 6482 COMMON_INTERCEPTOR_READ_STRING(ctx, path, 0); 6483 int res = REAL(__lxstat)(version, path, buf); 6484 if (!res) 6485 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, buf, __sanitizer::struct_stat_sz); 6486 return res; 6487 } 6488 #define INIT___LXSTAT COMMON_INTERCEPT_FUNCTION(__lxstat) 6489 #else 6490 #define INIT___LXSTAT 6491 #endif 6492 6493 #if SANITIZER_INTERCEPT___LXSTAT64 6494 INTERCEPTOR(int, __lxstat64, int version, const char *path, void *buf) { 6495 void *ctx; 6496 COMMON_INTERCEPTOR_ENTER(ctx, __lxstat64, version, path, buf); 6497 if (common_flags()->intercept_stat) 6498 COMMON_INTERCEPTOR_READ_STRING(ctx, path, 0); 6499 int res = REAL(__lxstat64)(version, path, buf); 6500 if (!res) 6501 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, buf, __sanitizer::struct_stat64_sz); 6502 return res; 6503 } 6504 #define INIT___LXSTAT64 COMMON_INTERCEPT_FUNCTION(__lxstat64) 6505 #else 6506 #define INIT___LXSTAT64 6507 #endif 6508 6509 // FIXME: add other *stat interceptor 6510 6511 #if SANITIZER_INTERCEPT_UTMP 6512 INTERCEPTOR(void *, getutent, int dummy) { 6513 void *ctx; 6514 COMMON_INTERCEPTOR_ENTER(ctx, getutent, dummy); 6515 void *res = REAL(getutent)(dummy); 6516 if (res) 6517 COMMON_INTERCEPTOR_INITIALIZE_RANGE(res, __sanitizer::struct_utmp_sz); 6518 return res; 6519 } 6520 INTERCEPTOR(void *, getutid, void *ut) { 6521 void *ctx; 6522 COMMON_INTERCEPTOR_ENTER(ctx, getutid, ut); 6523 void *res = REAL(getutid)(ut); 6524 if (res) 6525 COMMON_INTERCEPTOR_INITIALIZE_RANGE(res, __sanitizer::struct_utmp_sz); 6526 return res; 6527 } 6528 INTERCEPTOR(void *, getutline, void *ut) { 6529 void *ctx; 6530 COMMON_INTERCEPTOR_ENTER(ctx, getutline, ut); 6531 void *res = REAL(getutline)(ut); 6532 if (res) 6533 COMMON_INTERCEPTOR_INITIALIZE_RANGE(res, __sanitizer::struct_utmp_sz); 6534 return res; 6535 } 6536 #define INIT_UTMP \ 6537 COMMON_INTERCEPT_FUNCTION(getutent); \ 6538 COMMON_INTERCEPT_FUNCTION(getutid); \ 6539 COMMON_INTERCEPT_FUNCTION(getutline); 6540 #else 6541 #define INIT_UTMP 6542 #endif 6543 6544 #if SANITIZER_INTERCEPT_UTMPX 6545 INTERCEPTOR(void *, getutxent, int dummy) { 6546 void *ctx; 6547 COMMON_INTERCEPTOR_ENTER(ctx, getutxent, dummy); 6548 void *res = REAL(getutxent)(dummy); 6549 if (res) 6550 COMMON_INTERCEPTOR_INITIALIZE_RANGE(res, __sanitizer::struct_utmpx_sz); 6551 return res; 6552 } 6553 INTERCEPTOR(void *, getutxid, void *ut) { 6554 void *ctx; 6555 COMMON_INTERCEPTOR_ENTER(ctx, getutxid, ut); 6556 void *res = REAL(getutxid)(ut); 6557 if (res) 6558 COMMON_INTERCEPTOR_INITIALIZE_RANGE(res, __sanitizer::struct_utmpx_sz); 6559 return res; 6560 } 6561 INTERCEPTOR(void *, getutxline, void *ut) { 6562 void *ctx; 6563 COMMON_INTERCEPTOR_ENTER(ctx, getutxline, ut); 6564 void *res = REAL(getutxline)(ut); 6565 if (res) 6566 COMMON_INTERCEPTOR_INITIALIZE_RANGE(res, __sanitizer::struct_utmpx_sz); 6567 return res; 6568 } 6569 #define INIT_UTMPX \ 6570 COMMON_INTERCEPT_FUNCTION(getutxent); \ 6571 COMMON_INTERCEPT_FUNCTION(getutxid); \ 6572 COMMON_INTERCEPT_FUNCTION(getutxline); 6573 #else 6574 #define INIT_UTMPX 6575 #endif 6576 6577 #if SANITIZER_INTERCEPT_GETLOADAVG 6578 INTERCEPTOR(int, getloadavg, double *loadavg, int nelem) { 6579 void *ctx; 6580 COMMON_INTERCEPTOR_ENTER(ctx, getloadavg, loadavg, nelem); 6581 int res = REAL(getloadavg)(loadavg, nelem); 6582 if (res > 0) 6583 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, loadavg, res * sizeof(*loadavg)); 6584 return res; 6585 } 6586 #define INIT_GETLOADAVG \ 6587 COMMON_INTERCEPT_FUNCTION(getloadavg); 6588 #else 6589 #define INIT_GETLOADAVG 6590 #endif 6591 6592 #if SANITIZER_INTERCEPT_MCHECK_MPROBE 6593 INTERCEPTOR(int, mcheck, void (*abortfunc)(int mstatus)) { 6594 return 0; 6595 } 6596 6597 INTERCEPTOR(int, mcheck_pedantic, void (*abortfunc)(int mstatus)) { 6598 return 0; 6599 } 6600 6601 INTERCEPTOR(int, mprobe, void *ptr) { 6602 return 0; 6603 } 6604 #endif 6605 6606 INTERCEPTOR(SIZE_T, wcslen, const wchar_t *s) { 6607 void *ctx; 6608 COMMON_INTERCEPTOR_ENTER(ctx, wcslen, s); 6609 SIZE_T res = REAL(wcslen)(s); 6610 COMMON_INTERCEPTOR_READ_RANGE(ctx, s, sizeof(wchar_t) * (res + 1)); 6611 return res; 6612 } 6613 6614 INTERCEPTOR(SIZE_T, wcsnlen, const wchar_t *s, SIZE_T n) { 6615 void *ctx; 6616 COMMON_INTERCEPTOR_ENTER(ctx, wcsnlen, s, n); 6617 SIZE_T res = REAL(wcsnlen)(s, n); 6618 COMMON_INTERCEPTOR_READ_RANGE(ctx, s, sizeof(wchar_t) * Min(res + 1, n)); 6619 return res; 6620 } 6621 #define INIT_WCSLEN \ 6622 COMMON_INTERCEPT_FUNCTION(wcslen); \ 6623 COMMON_INTERCEPT_FUNCTION(wcsnlen); 6624 6625 #if SANITIZER_INTERCEPT_WCSCAT 6626 INTERCEPTOR(wchar_t *, wcscat, wchar_t *dst, const wchar_t *src) { 6627 void *ctx; 6628 COMMON_INTERCEPTOR_ENTER(ctx, wcscat, dst, src); 6629 SIZE_T src_size = REAL(wcslen)(src); 6630 SIZE_T dst_size = REAL(wcslen)(dst); 6631 COMMON_INTERCEPTOR_READ_RANGE(ctx, src, (src_size + 1) * sizeof(wchar_t)); 6632 COMMON_INTERCEPTOR_READ_RANGE(ctx, dst, (dst_size + 1) * sizeof(wchar_t)); 6633 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, dst + dst_size, 6634 (src_size + 1) * sizeof(wchar_t)); 6635 return REAL(wcscat)(dst, src); // NOLINT 6636 } 6637 6638 INTERCEPTOR(wchar_t *, wcsncat, wchar_t *dst, const wchar_t *src, SIZE_T n) { 6639 void *ctx; 6640 COMMON_INTERCEPTOR_ENTER(ctx, wcsncat, dst, src, n); 6641 SIZE_T src_size = REAL(wcsnlen)(src, n); 6642 SIZE_T dst_size = REAL(wcslen)(dst); 6643 COMMON_INTERCEPTOR_READ_RANGE(ctx, src, 6644 Min(src_size + 1, n) * sizeof(wchar_t)); 6645 COMMON_INTERCEPTOR_READ_RANGE(ctx, dst, (dst_size + 1) * sizeof(wchar_t)); 6646 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, dst + dst_size, 6647 (src_size + 1) * sizeof(wchar_t)); 6648 return REAL(wcsncat)(dst, src, n); // NOLINT 6649 } 6650 #define INIT_WCSCAT \ 6651 COMMON_INTERCEPT_FUNCTION(wcscat); \ 6652 COMMON_INTERCEPT_FUNCTION(wcsncat); 6653 #else 6654 #define INIT_WCSCAT 6655 #endif 6656 6657 #if SANITIZER_INTERCEPT_STRXFRM 6658 static SIZE_T RealStrLen(const char *str) { return REAL(strlen)(str); } 6659 6660 static SIZE_T RealStrLen(const wchar_t *str) { return REAL(wcslen)(str); } 6661 6662 #define STRXFRM_INTERCEPTOR_IMPL(strxfrm, dest, src, len, ...) \ 6663 { \ 6664 void *ctx; \ 6665 COMMON_INTERCEPTOR_ENTER(ctx, strxfrm, dest, src, len, ##__VA_ARGS__); \ 6666 COMMON_INTERCEPTOR_READ_RANGE(ctx, src, \ 6667 sizeof(*src) * (RealStrLen(src) + 1)); \ 6668 SIZE_T res = REAL(strxfrm)(dest, src, len, ##__VA_ARGS__); \ 6669 if (res < len) \ 6670 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, dest, sizeof(*src) * (res + 1)); \ 6671 return res; \ 6672 } 6673 6674 INTERCEPTOR(SIZE_T, strxfrm, char *dest, const char *src, SIZE_T len) { 6675 STRXFRM_INTERCEPTOR_IMPL(strxfrm, dest, src, len); 6676 } 6677 6678 INTERCEPTOR(SIZE_T, strxfrm_l, char *dest, const char *src, SIZE_T len, 6679 void *locale) { 6680 STRXFRM_INTERCEPTOR_IMPL(strxfrm_l, dest, src, len, locale); 6681 } 6682 6683 #define INIT_STRXFRM \ 6684 COMMON_INTERCEPT_FUNCTION(strxfrm); \ 6685 COMMON_INTERCEPT_FUNCTION(strxfrm_l); 6686 #else 6687 #define INIT_STRXFRM 6688 #endif 6689 6690 #if SANITIZER_INTERCEPT___STRXFRM_L 6691 INTERCEPTOR(SIZE_T, __strxfrm_l, char *dest, const char *src, SIZE_T len, 6692 void *locale) { 6693 STRXFRM_INTERCEPTOR_IMPL(__strxfrm_l, dest, src, len, locale); 6694 } 6695 6696 #define INIT___STRXFRM_L COMMON_INTERCEPT_FUNCTION(__strxfrm_l); 6697 #else 6698 #define INIT___STRXFRM_L 6699 #endif 6700 6701 #if SANITIZER_INTERCEPT_WCSXFRM 6702 INTERCEPTOR(SIZE_T, wcsxfrm, wchar_t *dest, const wchar_t *src, SIZE_T len) { 6703 STRXFRM_INTERCEPTOR_IMPL(wcsxfrm, dest, src, len); 6704 } 6705 6706 INTERCEPTOR(SIZE_T, wcsxfrm_l, wchar_t *dest, const wchar_t *src, SIZE_T len, 6707 void *locale) { 6708 STRXFRM_INTERCEPTOR_IMPL(wcsxfrm_l, dest, src, len, locale); 6709 } 6710 6711 #define INIT_WCSXFRM \ 6712 COMMON_INTERCEPT_FUNCTION(wcsxfrm); \ 6713 COMMON_INTERCEPT_FUNCTION(wcsxfrm_l); 6714 #else 6715 #define INIT_WCSXFRM 6716 #endif 6717 6718 #if SANITIZER_INTERCEPT___WCSXFRM_L 6719 INTERCEPTOR(SIZE_T, __wcsxfrm_l, wchar_t *dest, const wchar_t *src, SIZE_T len, 6720 void *locale) { 6721 STRXFRM_INTERCEPTOR_IMPL(__wcsxfrm_l, dest, src, len, locale); 6722 } 6723 6724 #define INIT___WCSXFRM_L COMMON_INTERCEPT_FUNCTION(__wcsxfrm_l); 6725 #else 6726 #define INIT___WCSXFRM_L 6727 #endif 6728 6729 #if SANITIZER_INTERCEPT_ACCT 6730 INTERCEPTOR(int, acct, const char *file) { 6731 void *ctx; 6732 COMMON_INTERCEPTOR_ENTER(ctx, acct, file); 6733 if (file) 6734 COMMON_INTERCEPTOR_READ_RANGE(ctx, file, REAL(strlen)(file) + 1); 6735 return REAL(acct)(file); 6736 } 6737 #define INIT_ACCT COMMON_INTERCEPT_FUNCTION(acct) 6738 #else 6739 #define INIT_ACCT 6740 #endif 6741 6742 #if SANITIZER_INTERCEPT_USER_FROM_UID 6743 INTERCEPTOR(const char *, user_from_uid, u32 uid, int nouser) { 6744 void *ctx; 6745 const char *user; 6746 COMMON_INTERCEPTOR_ENTER(ctx, user_from_uid, uid, nouser); 6747 user = REAL(user_from_uid)(uid, nouser); 6748 if (user) 6749 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, user, REAL(strlen)(user) + 1); 6750 return user; 6751 } 6752 #define INIT_USER_FROM_UID COMMON_INTERCEPT_FUNCTION(user_from_uid) 6753 #else 6754 #define INIT_USER_FROM_UID 6755 #endif 6756 6757 #if SANITIZER_INTERCEPT_UID_FROM_USER 6758 INTERCEPTOR(int, uid_from_user, const char *name, u32 *uid) { 6759 void *ctx; 6760 int res; 6761 COMMON_INTERCEPTOR_ENTER(ctx, uid_from_user, name, uid); 6762 if (name) 6763 COMMON_INTERCEPTOR_READ_RANGE(ctx, name, REAL(strlen)(name) + 1); 6764 res = REAL(uid_from_user)(name, uid); 6765 if (uid) 6766 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, uid, sizeof(*uid)); 6767 return res; 6768 } 6769 #define INIT_UID_FROM_USER COMMON_INTERCEPT_FUNCTION(uid_from_user) 6770 #else 6771 #define INIT_UID_FROM_USER 6772 #endif 6773 6774 #if SANITIZER_INTERCEPT_GROUP_FROM_GID 6775 INTERCEPTOR(const char *, group_from_gid, u32 gid, int nogroup) { 6776 void *ctx; 6777 const char *group; 6778 COMMON_INTERCEPTOR_ENTER(ctx, group_from_gid, gid, nogroup); 6779 group = REAL(group_from_gid)(gid, nogroup); 6780 if (group) 6781 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, group, REAL(strlen)(group) + 1); 6782 return group; 6783 } 6784 #define INIT_GROUP_FROM_GID COMMON_INTERCEPT_FUNCTION(group_from_gid) 6785 #else 6786 #define INIT_GROUP_FROM_GID 6787 #endif 6788 6789 #if SANITIZER_INTERCEPT_GID_FROM_GROUP 6790 INTERCEPTOR(int, gid_from_group, const char *group, u32 *gid) { 6791 void *ctx; 6792 int res; 6793 COMMON_INTERCEPTOR_ENTER(ctx, gid_from_group, group, gid); 6794 if (group) 6795 COMMON_INTERCEPTOR_READ_RANGE(ctx, group, REAL(strlen)(group) + 1); 6796 res = REAL(gid_from_group)(group, gid); 6797 if (gid) 6798 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, gid, sizeof(*gid)); 6799 return res; 6800 } 6801 #define INIT_GID_FROM_GROUP COMMON_INTERCEPT_FUNCTION(gid_from_group) 6802 #else 6803 #define INIT_GID_FROM_GROUP 6804 #endif 6805 6806 #if SANITIZER_INTERCEPT_ACCESS 6807 INTERCEPTOR(int, access, const char *path, int mode) { 6808 void *ctx; 6809 COMMON_INTERCEPTOR_ENTER(ctx, access, path, mode); 6810 if (path) 6811 COMMON_INTERCEPTOR_READ_RANGE(ctx, path, REAL(strlen)(path) + 1); 6812 return REAL(access)(path, mode); 6813 } 6814 #define INIT_ACCESS COMMON_INTERCEPT_FUNCTION(access) 6815 #else 6816 #define INIT_ACCESS 6817 #endif 6818 6819 #if SANITIZER_INTERCEPT_FACCESSAT 6820 INTERCEPTOR(int, faccessat, int fd, const char *path, int mode, int flags) { 6821 void *ctx; 6822 COMMON_INTERCEPTOR_ENTER(ctx, faccessat, fd, path, mode, flags); 6823 if (path) 6824 COMMON_INTERCEPTOR_READ_RANGE(ctx, path, REAL(strlen)(path) + 1); 6825 return REAL(faccessat)(fd, path, mode, flags); 6826 } 6827 #define INIT_FACCESSAT COMMON_INTERCEPT_FUNCTION(faccessat) 6828 #else 6829 #define INIT_FACCESSAT 6830 #endif 6831 6832 #if SANITIZER_INTERCEPT_GETGROUPLIST 6833 INTERCEPTOR(int, getgrouplist, const char *name, u32 basegid, u32 *groups, 6834 int *ngroups) { 6835 void *ctx; 6836 int res; 6837 COMMON_INTERCEPTOR_ENTER(ctx, getgrouplist, name, basegid, groups, ngroups); 6838 if (name) 6839 COMMON_INTERCEPTOR_READ_RANGE(ctx, name, REAL(strlen)(name) + 1); 6840 if (ngroups) 6841 COMMON_INTERCEPTOR_READ_RANGE(ctx, ngroups, sizeof(*ngroups)); 6842 res = REAL(getgrouplist)(name, basegid, groups, ngroups); 6843 if (!res && groups && ngroups) { 6844 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, groups, sizeof(*groups) * (*ngroups)); 6845 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, ngroups, sizeof(*ngroups)); 6846 } 6847 return res; 6848 } 6849 6850 #define INIT_GETGROUPLIST COMMON_INTERCEPT_FUNCTION(getgrouplist); 6851 #else 6852 #define INIT_GETGROUPLIST 6853 #endif 6854 6855 #if SANITIZER_INTERCEPT_GETGROUPMEMBERSHIP 6856 INTERCEPTOR(int, getgroupmembership, const char *name, u32 basegid, u32 *groups, 6857 int maxgrp, int *ngroups) { 6858 void *ctx; 6859 int res; 6860 COMMON_INTERCEPTOR_ENTER(ctx, getgroupmembership, name, basegid, groups, 6861 maxgrp, ngroups); 6862 if (name) 6863 COMMON_INTERCEPTOR_READ_RANGE(ctx, name, REAL(strlen)(name) + 1); 6864 res = REAL(getgroupmembership)(name, basegid, groups, maxgrp, ngroups); 6865 if (!res && groups && ngroups) { 6866 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, groups, sizeof(*groups) * (*ngroups)); 6867 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, ngroups, sizeof(*ngroups)); 6868 } 6869 return res; 6870 } 6871 6872 #define INIT_GETGROUPMEMBERSHIP COMMON_INTERCEPT_FUNCTION(getgroupmembership); 6873 #else 6874 #define INIT_GETGROUPMEMBERSHIP 6875 #endif 6876 6877 #if SANITIZER_INTERCEPT_READLINK 6878 INTERCEPTOR(SSIZE_T, readlink, const char *path, char *buf, SIZE_T bufsiz) { 6879 void* ctx; 6880 COMMON_INTERCEPTOR_ENTER(ctx, readlink, path, buf, bufsiz); 6881 COMMON_INTERCEPTOR_READ_RANGE(ctx, path, REAL(strlen)(path) + 1); 6882 SSIZE_T res = REAL(readlink)(path, buf, bufsiz); 6883 if (res > 0) 6884 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, buf, res); 6885 return res; 6886 } 6887 6888 #define INIT_READLINK COMMON_INTERCEPT_FUNCTION(readlink) 6889 #else 6890 #define INIT_READLINK 6891 #endif 6892 6893 #if SANITIZER_INTERCEPT_READLINKAT 6894 INTERCEPTOR(SSIZE_T, readlinkat, int dirfd, const char *path, char *buf, 6895 SIZE_T bufsiz) { 6896 void* ctx; 6897 COMMON_INTERCEPTOR_ENTER(ctx, readlinkat, dirfd, path, buf, bufsiz); 6898 COMMON_INTERCEPTOR_READ_RANGE(ctx, path, REAL(strlen)(path) + 1); 6899 SSIZE_T res = REAL(readlinkat)(dirfd, path, buf, bufsiz); 6900 if (res > 0) 6901 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, buf, res); 6902 return res; 6903 } 6904 6905 #define INIT_READLINKAT COMMON_INTERCEPT_FUNCTION(readlinkat) 6906 #else 6907 #define INIT_READLINKAT 6908 #endif 6909 6910 #if SANITIZER_INTERCEPT_NAME_TO_HANDLE_AT 6911 INTERCEPTOR(int, name_to_handle_at, int dirfd, const char *pathname, 6912 struct file_handle *handle, int *mount_id, int flags) { 6913 void* ctx; 6914 COMMON_INTERCEPTOR_ENTER(ctx, name_to_handle_at, dirfd, pathname, handle, 6915 mount_id, flags); 6916 COMMON_INTERCEPTOR_READ_RANGE(ctx, pathname, REAL(strlen)(pathname) + 1); 6917 6918 __sanitizer_file_handle *sanitizer_handle = 6919 reinterpret_cast<__sanitizer_file_handle*>(handle); 6920 COMMON_INTERCEPTOR_READ_RANGE( 6921 ctx, &sanitizer_handle->handle_bytes, 6922 sizeof(sanitizer_handle->handle_bytes)); 6923 6924 int res = REAL(name_to_handle_at)(dirfd, pathname, handle, mount_id, flags); 6925 if (!res) { 6926 COMMON_INTERCEPTOR_WRITE_RANGE( 6927 ctx, &sanitizer_handle->handle_bytes, 6928 sizeof(sanitizer_handle->handle_bytes)); 6929 COMMON_INTERCEPTOR_WRITE_RANGE( 6930 ctx, &sanitizer_handle->handle_type, 6931 sizeof(sanitizer_handle->handle_type)); 6932 COMMON_INTERCEPTOR_WRITE_RANGE( 6933 ctx, &sanitizer_handle->f_handle, sanitizer_handle->handle_bytes); 6934 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, mount_id, sizeof(*mount_id)); 6935 } 6936 return res; 6937 } 6938 6939 #define INIT_NAME_TO_HANDLE_AT COMMON_INTERCEPT_FUNCTION(name_to_handle_at) 6940 #else 6941 #define INIT_NAME_TO_HANDLE_AT 6942 #endif 6943 6944 #if SANITIZER_INTERCEPT_OPEN_BY_HANDLE_AT 6945 INTERCEPTOR(int, open_by_handle_at, int mount_fd, struct file_handle* handle, 6946 int flags) { 6947 void* ctx; 6948 COMMON_INTERCEPTOR_ENTER(ctx, open_by_handle_at, mount_fd, handle, flags); 6949 6950 __sanitizer_file_handle *sanitizer_handle = 6951 reinterpret_cast<__sanitizer_file_handle*>(handle); 6952 COMMON_INTERCEPTOR_READ_RANGE( 6953 ctx, &sanitizer_handle->handle_bytes, 6954 sizeof(sanitizer_handle->handle_bytes)); 6955 COMMON_INTERCEPTOR_READ_RANGE( 6956 ctx, &sanitizer_handle->handle_type, 6957 sizeof(sanitizer_handle->handle_type)); 6958 COMMON_INTERCEPTOR_READ_RANGE( 6959 ctx, &sanitizer_handle->f_handle, sanitizer_handle->handle_bytes); 6960 6961 return REAL(open_by_handle_at)(mount_fd, handle, flags); 6962 } 6963 6964 #define INIT_OPEN_BY_HANDLE_AT COMMON_INTERCEPT_FUNCTION(open_by_handle_at) 6965 #else 6966 #define INIT_OPEN_BY_HANDLE_AT 6967 #endif 6968 6969 #if SANITIZER_INTERCEPT_STRLCPY 6970 INTERCEPTOR(SIZE_T, strlcpy, char *dst, char *src, SIZE_T size) { 6971 void *ctx; 6972 SIZE_T res; 6973 COMMON_INTERCEPTOR_ENTER(ctx, strlcpy, dst, src, size); 6974 if (src) { 6975 // Keep strnlen as macro argument, as macro may ignore it. 6976 COMMON_INTERCEPTOR_READ_STRING( 6977 ctx, src, Min(internal_strnlen(src, size), size - 1) + 1); 6978 } 6979 res = REAL(strlcpy)(dst, src, size); 6980 COMMON_INTERCEPTOR_COPY_STRING(ctx, dst, src, REAL(strlen)(dst) + 1); 6981 return res; 6982 } 6983 6984 INTERCEPTOR(SIZE_T, strlcat, char *dst, char *src, SIZE_T size) { 6985 void *ctx; 6986 SIZE_T len = 0; 6987 COMMON_INTERCEPTOR_ENTER(ctx, strlcat, dst, src, size); 6988 // src is checked in the strlcpy() interceptor 6989 if (dst) { 6990 len = internal_strnlen(dst, size); 6991 COMMON_INTERCEPTOR_READ_STRING(ctx, dst, Min(len, size - 1) + 1); 6992 } 6993 // Reuse the rest of the code in the strlcpy() interceptor 6994 return WRAP(strlcpy)(dst + len, src, size - len) + len; 6995 } 6996 #define INIT_STRLCPY \ 6997 COMMON_INTERCEPT_FUNCTION(strlcpy); \ 6998 COMMON_INTERCEPT_FUNCTION(strlcat); 6999 #else 7000 #define INIT_STRLCPY 7001 #endif 7002 7003 #if SANITIZER_INTERCEPT_MMAP 7004 INTERCEPTOR(void *, mmap, void *addr, SIZE_T sz, int prot, int flags, int fd, 7005 OFF_T off) { 7006 void *ctx; 7007 if (common_flags()->detect_write_exec) 7008 ReportMmapWriteExec(prot); 7009 if (COMMON_INTERCEPTOR_NOTHING_IS_INITIALIZED) 7010 return (void *)internal_mmap(addr, sz, prot, flags, fd, off); 7011 COMMON_INTERCEPTOR_ENTER(ctx, mmap, addr, sz, prot, flags, fd, off); 7012 COMMON_INTERCEPTOR_MMAP_IMPL(ctx, mmap, addr, sz, prot, flags, fd, off); 7013 } 7014 7015 INTERCEPTOR(int, mprotect, void *addr, SIZE_T sz, int prot) { 7016 void *ctx; 7017 if (common_flags()->detect_write_exec) 7018 ReportMmapWriteExec(prot); 7019 if (COMMON_INTERCEPTOR_NOTHING_IS_INITIALIZED) 7020 return (int)internal_mprotect(addr, sz, prot); 7021 COMMON_INTERCEPTOR_ENTER(ctx, mprotect, addr, sz, prot); 7022 MprotectMallocZones(addr, prot); 7023 return REAL(mprotect)(addr, sz, prot); 7024 } 7025 #define INIT_MMAP \ 7026 COMMON_INTERCEPT_FUNCTION(mmap); \ 7027 COMMON_INTERCEPT_FUNCTION(mprotect); 7028 #else 7029 #define INIT_MMAP 7030 #endif 7031 7032 #if SANITIZER_INTERCEPT_MMAP64 7033 INTERCEPTOR(void *, mmap64, void *addr, SIZE_T sz, int prot, int flags, int fd, 7034 OFF64_T off) { 7035 void *ctx; 7036 if (common_flags()->detect_write_exec) 7037 ReportMmapWriteExec(prot); 7038 if (COMMON_INTERCEPTOR_NOTHING_IS_INITIALIZED) 7039 return (void *)internal_mmap(addr, sz, prot, flags, fd, off); 7040 COMMON_INTERCEPTOR_ENTER(ctx, mmap64, addr, sz, prot, flags, fd, off); 7041 COMMON_INTERCEPTOR_MMAP_IMPL(ctx, mmap64, addr, sz, prot, flags, fd, off); 7042 } 7043 #define INIT_MMAP64 COMMON_INTERCEPT_FUNCTION(mmap64); 7044 #else 7045 #define INIT_MMAP64 7046 #endif 7047 7048 #if SANITIZER_INTERCEPT_DEVNAME 7049 INTERCEPTOR(char *, devname, u64 dev, u32 type) { 7050 void *ctx; 7051 char *name; 7052 COMMON_INTERCEPTOR_ENTER(ctx, devname, dev, type); 7053 name = REAL(devname)(dev, type); 7054 if (name) 7055 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, name, REAL(strlen)(name) + 1); 7056 return name; 7057 } 7058 #define INIT_DEVNAME COMMON_INTERCEPT_FUNCTION(devname); 7059 #else 7060 #define INIT_DEVNAME 7061 #endif 7062 7063 #if SANITIZER_INTERCEPT_DEVNAME_R 7064 #if SANITIZER_NETBSD 7065 #define DEVNAME_R_RETTYPE int 7066 #define DEVNAME_R_SUCCESS(x) (!(x)) 7067 #else 7068 #define DEVNAME_R_RETTYPE char* 7069 #define DEVNAME_R_SUCCESS(x) (x) 7070 #endif 7071 INTERCEPTOR(DEVNAME_R_RETTYPE, devname_r, u64 dev, u32 type, char *path, 7072 uptr len) { 7073 void *ctx; 7074 COMMON_INTERCEPTOR_ENTER(ctx, devname_r, dev, type, path, len); 7075 DEVNAME_R_RETTYPE res = REAL(devname_r)(dev, type, path, len); 7076 if (DEVNAME_R_SUCCESS(res)) 7077 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, path, REAL(strlen)(path) + 1); 7078 return res; 7079 } 7080 #define INIT_DEVNAME_R COMMON_INTERCEPT_FUNCTION(devname_r); 7081 #else 7082 #define INIT_DEVNAME_R 7083 #endif 7084 7085 #if SANITIZER_INTERCEPT_FGETLN 7086 INTERCEPTOR(char *, fgetln, __sanitizer_FILE *stream, SIZE_T *len) { 7087 void *ctx; 7088 COMMON_INTERCEPTOR_ENTER(ctx, fgetln, stream, len); 7089 char *str = REAL(fgetln)(stream, len); 7090 if (str && len) { 7091 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, len, sizeof(*len)); 7092 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, str, *len); 7093 } 7094 return str; 7095 } 7096 #define INIT_FGETLN COMMON_INTERCEPT_FUNCTION(fgetln) 7097 #else 7098 #define INIT_FGETLN 7099 #endif 7100 7101 #if SANITIZER_INTERCEPT_STRMODE 7102 INTERCEPTOR(void, strmode, u32 mode, char *bp) { 7103 void *ctx; 7104 COMMON_INTERCEPTOR_ENTER(ctx, strmode, mode, bp); 7105 REAL(strmode)(mode, bp); 7106 if (bp) 7107 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, bp, REAL(strlen)(bp) + 1); 7108 } 7109 #define INIT_STRMODE COMMON_INTERCEPT_FUNCTION(strmode) 7110 #else 7111 #define INIT_STRMODE 7112 #endif 7113 7114 #if SANITIZER_INTERCEPT_TTYENT 7115 INTERCEPTOR(struct __sanitizer_ttyent *, getttyent, void) { 7116 void *ctx; 7117 COMMON_INTERCEPTOR_ENTER(ctx, getttyent); 7118 struct __sanitizer_ttyent *ttyent = REAL(getttyent)(); 7119 if (ttyent) 7120 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, ttyent, struct_ttyent_sz); 7121 return ttyent; 7122 } 7123 INTERCEPTOR(struct __sanitizer_ttyent *, getttynam, char *name) { 7124 void *ctx; 7125 COMMON_INTERCEPTOR_ENTER(ctx, getttynam, name); 7126 if (name) 7127 COMMON_INTERCEPTOR_READ_RANGE(ctx, name, REAL(strlen)(name) + 1); 7128 struct __sanitizer_ttyent *ttyent = REAL(getttynam)(name); 7129 if (ttyent) 7130 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, ttyent, struct_ttyent_sz); 7131 return ttyent; 7132 } 7133 INTERCEPTOR(int, setttyentpath, char *path) { 7134 void *ctx; 7135 COMMON_INTERCEPTOR_ENTER(ctx, setttyentpath, path); 7136 if (path) 7137 COMMON_INTERCEPTOR_READ_RANGE(ctx, path, REAL(strlen)(path) + 1); 7138 return REAL(setttyentpath)(path); 7139 } 7140 #define INIT_TTYENT \ 7141 COMMON_INTERCEPT_FUNCTION(getttyent); \ 7142 COMMON_INTERCEPT_FUNCTION(getttynam); \ 7143 COMMON_INTERCEPT_FUNCTION(setttyentpath) 7144 #else 7145 #define INIT_TTYENT 7146 #endif 7147 7148 #if SANITIZER_INTERCEPT_PROTOENT 7149 INTERCEPTOR(struct __sanitizer_protoent *, getprotoent) { 7150 void *ctx; 7151 COMMON_INTERCEPTOR_ENTER(ctx, getprotoent); 7152 struct __sanitizer_protoent *p = REAL(getprotoent)(); 7153 if (p) { 7154 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, p, sizeof(*p)); 7155 7156 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, p->p_name, REAL(strlen)(p->p_name) + 1); 7157 7158 SIZE_T pp_size = 1; // One handles the trailing \0 7159 7160 for (char **pp = p->p_aliases; *pp; ++pp, ++pp_size) 7161 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, *pp, REAL(strlen)(*pp) + 1); 7162 7163 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, p->p_aliases, 7164 pp_size * sizeof(char **)); 7165 } 7166 return p; 7167 } 7168 7169 INTERCEPTOR(struct __sanitizer_protoent *, getprotobyname, const char *name) { 7170 void *ctx; 7171 COMMON_INTERCEPTOR_ENTER(ctx, getprotobyname, name); 7172 if (name) 7173 COMMON_INTERCEPTOR_READ_RANGE(ctx, name, REAL(strlen)(name) + 1); 7174 struct __sanitizer_protoent *p = REAL(getprotobyname)(name); 7175 if (p) { 7176 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, p, sizeof(*p)); 7177 7178 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, p->p_name, REAL(strlen)(p->p_name) + 1); 7179 7180 SIZE_T pp_size = 1; // One handles the trailing \0 7181 7182 for (char **pp = p->p_aliases; *pp; ++pp, ++pp_size) 7183 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, *pp, REAL(strlen)(*pp) + 1); 7184 7185 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, p->p_aliases, 7186 pp_size * sizeof(char **)); 7187 } 7188 return p; 7189 } 7190 7191 INTERCEPTOR(struct __sanitizer_protoent *, getprotobynumber, int proto) { 7192 void *ctx; 7193 COMMON_INTERCEPTOR_ENTER(ctx, getprotobynumber, proto); 7194 struct __sanitizer_protoent *p = REAL(getprotobynumber)(proto); 7195 if (p) { 7196 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, p, sizeof(*p)); 7197 7198 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, p->p_name, REAL(strlen)(p->p_name) + 1); 7199 7200 SIZE_T pp_size = 1; // One handles the trailing \0 7201 7202 for (char **pp = p->p_aliases; *pp; ++pp, ++pp_size) 7203 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, *pp, REAL(strlen)(*pp) + 1); 7204 7205 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, p->p_aliases, 7206 pp_size * sizeof(char **)); 7207 } 7208 return p; 7209 } 7210 #define INIT_PROTOENT \ 7211 COMMON_INTERCEPT_FUNCTION(getprotoent); \ 7212 COMMON_INTERCEPT_FUNCTION(getprotobyname); \ 7213 COMMON_INTERCEPT_FUNCTION(getprotobynumber) 7214 #else 7215 #define INIT_PROTOENT 7216 #endif 7217 7218 #if SANITIZER_INTERCEPT_NETENT 7219 INTERCEPTOR(struct __sanitizer_netent *, getnetent) { 7220 void *ctx; 7221 COMMON_INTERCEPTOR_ENTER(ctx, getnetent); 7222 struct __sanitizer_netent *n = REAL(getnetent)(); 7223 if (n) { 7224 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, n, sizeof(*n)); 7225 7226 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, n->n_name, REAL(strlen)(n->n_name) + 1); 7227 7228 SIZE_T nn_size = 1; // One handles the trailing \0 7229 7230 for (char **nn = n->n_aliases; *nn; ++nn, ++nn_size) 7231 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, *nn, REAL(strlen)(*nn) + 1); 7232 7233 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, n->n_aliases, 7234 nn_size * sizeof(char **)); 7235 } 7236 return n; 7237 } 7238 7239 INTERCEPTOR(struct __sanitizer_netent *, getnetbyname, const char *name) { 7240 void *ctx; 7241 COMMON_INTERCEPTOR_ENTER(ctx, getnetbyname, name); 7242 if (name) 7243 COMMON_INTERCEPTOR_READ_RANGE(ctx, name, REAL(strlen)(name) + 1); 7244 struct __sanitizer_netent *n = REAL(getnetbyname)(name); 7245 if (n) { 7246 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, n, sizeof(*n)); 7247 7248 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, n->n_name, REAL(strlen)(n->n_name) + 1); 7249 7250 SIZE_T nn_size = 1; // One handles the trailing \0 7251 7252 for (char **nn = n->n_aliases; *nn; ++nn, ++nn_size) 7253 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, *nn, REAL(strlen)(*nn) + 1); 7254 7255 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, n->n_aliases, 7256 nn_size * sizeof(char **)); 7257 } 7258 return n; 7259 } 7260 7261 INTERCEPTOR(struct __sanitizer_netent *, getnetbyaddr, u32 net, int type) { 7262 void *ctx; 7263 COMMON_INTERCEPTOR_ENTER(ctx, getnetbyaddr, net, type); 7264 struct __sanitizer_netent *n = REAL(getnetbyaddr)(net, type); 7265 if (n) { 7266 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, n, sizeof(*n)); 7267 7268 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, n->n_name, REAL(strlen)(n->n_name) + 1); 7269 7270 SIZE_T nn_size = 1; // One handles the trailing \0 7271 7272 for (char **nn = n->n_aliases; *nn; ++nn, ++nn_size) 7273 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, *nn, REAL(strlen)(*nn) + 1); 7274 7275 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, n->n_aliases, 7276 nn_size * sizeof(char **)); 7277 } 7278 return n; 7279 } 7280 #define INIT_NETENT \ 7281 COMMON_INTERCEPT_FUNCTION(getnetent); \ 7282 COMMON_INTERCEPT_FUNCTION(getnetbyname); \ 7283 COMMON_INTERCEPT_FUNCTION(getnetbyaddr) 7284 #else 7285 #define INIT_NETENT 7286 #endif 7287 7288 #if SANITIZER_INTERCEPT_GETMNTINFO 7289 INTERCEPTOR(int, getmntinfo, void **mntbufp, int flags) { 7290 void *ctx; 7291 COMMON_INTERCEPTOR_ENTER(ctx, getmntinfo, mntbufp, flags); 7292 int cnt = REAL(getmntinfo)(mntbufp, flags); 7293 if (cnt > 0 && mntbufp) { 7294 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, mntbufp, sizeof(void *)); 7295 if (*mntbufp) 7296 #if SANITIZER_NETBSD 7297 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, *mntbufp, cnt * struct_statvfs_sz); 7298 #else 7299 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, *mntbufp, cnt * struct_statfs_sz); 7300 #endif 7301 } 7302 return cnt; 7303 } 7304 #define INIT_GETMNTINFO COMMON_INTERCEPT_FUNCTION(getmntinfo) 7305 #else 7306 #define INIT_GETMNTINFO 7307 #endif 7308 7309 #if SANITIZER_INTERCEPT_MI_VECTOR_HASH 7310 INTERCEPTOR(void, mi_vector_hash, const void *key, SIZE_T len, u32 seed, 7311 u32 hashes[3]) { 7312 void *ctx; 7313 COMMON_INTERCEPTOR_ENTER(ctx, mi_vector_hash, key, len, seed, hashes); 7314 if (key) 7315 COMMON_INTERCEPTOR_READ_RANGE(ctx, key, len); 7316 REAL(mi_vector_hash)(key, len, seed, hashes); 7317 if (hashes) 7318 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, hashes, sizeof(hashes[0]) * 3); 7319 } 7320 #define INIT_MI_VECTOR_HASH COMMON_INTERCEPT_FUNCTION(mi_vector_hash) 7321 #else 7322 #define INIT_MI_VECTOR_HASH 7323 #endif 7324 7325 #if SANITIZER_INTERCEPT_SETVBUF 7326 INTERCEPTOR(int, setvbuf, __sanitizer_FILE *stream, char *buf, int mode, 7327 SIZE_T size) { 7328 void *ctx; 7329 COMMON_INTERCEPTOR_ENTER(ctx, setvbuf, stream, buf, mode, size); 7330 int ret = REAL(setvbuf)(stream, buf, mode, size); 7331 if (buf) 7332 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, buf, size); 7333 if (stream) 7334 unpoison_file(stream); 7335 return ret; 7336 } 7337 7338 INTERCEPTOR(void, setbuf, __sanitizer_FILE *stream, char *buf) { 7339 void *ctx; 7340 COMMON_INTERCEPTOR_ENTER(ctx, setbuf, stream, buf); 7341 REAL(setbuf)(stream, buf); 7342 if (buf) { 7343 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, buf, __sanitizer_bufsiz); 7344 } 7345 if (stream) 7346 unpoison_file(stream); 7347 } 7348 7349 INTERCEPTOR(void, setbuffer, __sanitizer_FILE *stream, char *buf, int mode) { 7350 void *ctx; 7351 COMMON_INTERCEPTOR_ENTER(ctx, setbuffer, stream, buf, mode); 7352 REAL(setbuffer)(stream, buf, mode); 7353 if (buf) { 7354 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, buf, __sanitizer_bufsiz); 7355 } 7356 if (stream) 7357 unpoison_file(stream); 7358 } 7359 7360 INTERCEPTOR(void, setlinebuf, __sanitizer_FILE *stream) { 7361 void *ctx; 7362 COMMON_INTERCEPTOR_ENTER(ctx, setlinebuf, stream); 7363 REAL(setlinebuf)(stream); 7364 if (stream) 7365 unpoison_file(stream); 7366 } 7367 #define INIT_SETVBUF COMMON_INTERCEPT_FUNCTION(setvbuf); \ 7368 COMMON_INTERCEPT_FUNCTION(setbuf); \ 7369 COMMON_INTERCEPT_FUNCTION(setbuffer); \ 7370 COMMON_INTERCEPT_FUNCTION(setlinebuf) 7371 #else 7372 #define INIT_SETVBUF 7373 #endif 7374 7375 #if SANITIZER_INTERCEPT_GETVFSSTAT 7376 INTERCEPTOR(int, getvfsstat, void *buf, SIZE_T bufsize, int flags) { 7377 void *ctx; 7378 COMMON_INTERCEPTOR_ENTER(ctx, getvfsstat, buf, bufsize, flags); 7379 int ret = REAL(getvfsstat)(buf, bufsize, flags); 7380 if (buf && ret > 0) 7381 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, buf, ret * struct_statvfs_sz); 7382 return ret; 7383 } 7384 #define INIT_GETVFSSTAT COMMON_INTERCEPT_FUNCTION(getvfsstat) 7385 #else 7386 #define INIT_GETVFSSTAT 7387 #endif 7388 7389 #if SANITIZER_INTERCEPT_REGEX 7390 INTERCEPTOR(int, regcomp, void *preg, const char *pattern, int cflags) { 7391 void *ctx; 7392 COMMON_INTERCEPTOR_ENTER(ctx, regcomp, preg, pattern, cflags); 7393 if (pattern) 7394 COMMON_INTERCEPTOR_READ_RANGE(ctx, pattern, REAL(strlen)(pattern) + 1); 7395 int res = REAL(regcomp)(preg, pattern, cflags); 7396 if (!res) 7397 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, preg, struct_regex_sz); 7398 return res; 7399 } 7400 INTERCEPTOR(int, regexec, const void *preg, const char *string, SIZE_T nmatch, 7401 struct __sanitizer_regmatch *pmatch[], int eflags) { 7402 void *ctx; 7403 COMMON_INTERCEPTOR_ENTER(ctx, regexec, preg, string, nmatch, pmatch, eflags); 7404 if (preg) 7405 COMMON_INTERCEPTOR_READ_RANGE(ctx, preg, struct_regex_sz); 7406 if (string) 7407 COMMON_INTERCEPTOR_READ_RANGE(ctx, string, REAL(strlen)(string) + 1); 7408 int res = REAL(regexec)(preg, string, nmatch, pmatch, eflags); 7409 if (!res && pmatch) 7410 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, pmatch, nmatch * struct_regmatch_sz); 7411 return res; 7412 } 7413 INTERCEPTOR(SIZE_T, regerror, int errcode, const void *preg, char *errbuf, 7414 SIZE_T errbuf_size) { 7415 void *ctx; 7416 COMMON_INTERCEPTOR_ENTER(ctx, regerror, errcode, preg, errbuf, errbuf_size); 7417 if (preg) 7418 COMMON_INTERCEPTOR_READ_RANGE(ctx, preg, struct_regex_sz); 7419 SIZE_T res = REAL(regerror)(errcode, preg, errbuf, errbuf_size); 7420 if (errbuf) 7421 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, errbuf, REAL(strlen)(errbuf) + 1); 7422 return res; 7423 } 7424 INTERCEPTOR(void, regfree, const void *preg) { 7425 void *ctx; 7426 COMMON_INTERCEPTOR_ENTER(ctx, regfree, preg); 7427 if (preg) 7428 COMMON_INTERCEPTOR_READ_RANGE(ctx, preg, struct_regex_sz); 7429 REAL(regfree)(preg); 7430 } 7431 #define INIT_REGEX \ 7432 COMMON_INTERCEPT_FUNCTION(regcomp); \ 7433 COMMON_INTERCEPT_FUNCTION(regexec); \ 7434 COMMON_INTERCEPT_FUNCTION(regerror); \ 7435 COMMON_INTERCEPT_FUNCTION(regfree); 7436 #else 7437 #define INIT_REGEX 7438 #endif 7439 7440 #if SANITIZER_INTERCEPT_REGEXSUB 7441 INTERCEPTOR(SSIZE_T, regnsub, char *buf, SIZE_T bufsiz, const char *sub, 7442 const struct __sanitizer_regmatch *rm, const char *str) { 7443 void *ctx; 7444 COMMON_INTERCEPTOR_ENTER(ctx, regnsub, buf, bufsiz, sub, rm, str); 7445 if (sub) 7446 COMMON_INTERCEPTOR_READ_RANGE(ctx, sub, REAL(strlen)(sub) + 1); 7447 // The implementation demands and hardcodes 10 elements 7448 if (rm) 7449 COMMON_INTERCEPTOR_READ_RANGE(ctx, rm, 10 * struct_regmatch_sz); 7450 if (str) 7451 COMMON_INTERCEPTOR_READ_RANGE(ctx, str, REAL(strlen)(str) + 1); 7452 SSIZE_T res = REAL(regnsub)(buf, bufsiz, sub, rm, str); 7453 if (res > 0 && buf) 7454 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, buf, REAL(strlen)(buf) + 1); 7455 return res; 7456 } 7457 INTERCEPTOR(SSIZE_T, regasub, char **buf, const char *sub, 7458 const struct __sanitizer_regmatch *rm, const char *sstr) { 7459 void *ctx; 7460 COMMON_INTERCEPTOR_ENTER(ctx, regasub, buf, sub, rm, sstr); 7461 if (sub) 7462 COMMON_INTERCEPTOR_READ_RANGE(ctx, sub, REAL(strlen)(sub) + 1); 7463 // Hardcode 10 elements as this is hardcoded size 7464 if (rm) 7465 COMMON_INTERCEPTOR_READ_RANGE(ctx, rm, 10 * struct_regmatch_sz); 7466 if (sstr) 7467 COMMON_INTERCEPTOR_READ_RANGE(ctx, sstr, REAL(strlen)(sstr) + 1); 7468 SSIZE_T res = REAL(regasub)(buf, sub, rm, sstr); 7469 if (res > 0 && buf) { 7470 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, buf, sizeof(char *)); 7471 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, *buf, REAL(strlen)(*buf) + 1); 7472 } 7473 return res; 7474 } 7475 7476 #define INIT_REGEXSUB \ 7477 COMMON_INTERCEPT_FUNCTION(regnsub); \ 7478 COMMON_INTERCEPT_FUNCTION(regasub); 7479 #else 7480 #define INIT_REGEXSUB 7481 #endif 7482 7483 #if SANITIZER_INTERCEPT_FTS 7484 INTERCEPTOR(void *, fts_open, char *const *path_argv, int options, 7485 int (*compar)(void **, void **)) { 7486 void *ctx; 7487 COMMON_INTERCEPTOR_ENTER(ctx, fts_open, path_argv, options, compar); 7488 if (path_argv) { 7489 for (char *const *pa = path_argv; ; ++pa) { 7490 COMMON_INTERCEPTOR_READ_RANGE(ctx, pa, sizeof(char **)); 7491 if (!*pa) 7492 break; 7493 COMMON_INTERCEPTOR_READ_RANGE(ctx, *pa, REAL(strlen)(*pa) + 1); 7494 } 7495 } 7496 // TODO(kamil): handle compar callback 7497 void *fts = REAL(fts_open)(path_argv, options, compar); 7498 if (fts) 7499 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, fts, struct_FTS_sz); 7500 return fts; 7501 } 7502 7503 INTERCEPTOR(void *, fts_read, void *ftsp) { 7504 void *ctx; 7505 COMMON_INTERCEPTOR_ENTER(ctx, fts_read, ftsp); 7506 if (ftsp) 7507 COMMON_INTERCEPTOR_READ_RANGE(ctx, ftsp, struct_FTS_sz); 7508 void *ftsent = REAL(fts_read)(ftsp); 7509 if (ftsent) 7510 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, ftsent, struct_FTSENT_sz); 7511 return ftsent; 7512 } 7513 7514 INTERCEPTOR(void *, fts_children, void *ftsp, int options) { 7515 void *ctx; 7516 COMMON_INTERCEPTOR_ENTER(ctx, fts_children, ftsp, options); 7517 if (ftsp) 7518 COMMON_INTERCEPTOR_READ_RANGE(ctx, ftsp, struct_FTS_sz); 7519 void *ftsent = REAL(fts_children)(ftsp, options); 7520 if (ftsent) 7521 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, ftsent, struct_FTSENT_sz); 7522 return ftsent; 7523 } 7524 7525 INTERCEPTOR(int, fts_set, void *ftsp, void *f, int options) { 7526 void *ctx; 7527 COMMON_INTERCEPTOR_ENTER(ctx, fts_set, ftsp, f, options); 7528 if (ftsp) 7529 COMMON_INTERCEPTOR_READ_RANGE(ctx, ftsp, struct_FTS_sz); 7530 if (f) 7531 COMMON_INTERCEPTOR_READ_RANGE(ctx, f, struct_FTSENT_sz); 7532 return REAL(fts_set)(ftsp, f, options); 7533 } 7534 7535 INTERCEPTOR(int, fts_close, void *ftsp) { 7536 void *ctx; 7537 COMMON_INTERCEPTOR_ENTER(ctx, fts_close, ftsp); 7538 if (ftsp) 7539 COMMON_INTERCEPTOR_READ_RANGE(ctx, ftsp, struct_FTS_sz); 7540 return REAL(fts_close)(ftsp); 7541 } 7542 #define INIT_FTS \ 7543 COMMON_INTERCEPT_FUNCTION(fts_open); \ 7544 COMMON_INTERCEPT_FUNCTION(fts_read); \ 7545 COMMON_INTERCEPT_FUNCTION(fts_children); \ 7546 COMMON_INTERCEPT_FUNCTION(fts_set); \ 7547 COMMON_INTERCEPT_FUNCTION(fts_close); 7548 #else 7549 #define INIT_FTS 7550 #endif 7551 7552 #if SANITIZER_INTERCEPT_SYSCTL 7553 INTERCEPTOR(int, sysctl, int *name, unsigned int namelen, void *oldp, 7554 SIZE_T *oldlenp, void *newp, SIZE_T newlen) { 7555 void *ctx; 7556 if (COMMON_INTERCEPTOR_NOTHING_IS_INITIALIZED) 7557 return internal_sysctl(name, namelen, oldp, oldlenp, newp, newlen); 7558 COMMON_INTERCEPTOR_ENTER(ctx, sysctl, name, namelen, oldp, oldlenp, newp, 7559 newlen); 7560 if (name) 7561 COMMON_INTERCEPTOR_READ_RANGE(ctx, name, namelen * sizeof(*name)); 7562 if (oldlenp) 7563 COMMON_INTERCEPTOR_READ_RANGE(ctx, oldlenp, sizeof(*oldlenp)); 7564 if (newp && newlen) 7565 COMMON_INTERCEPTOR_READ_RANGE(ctx, newp, newlen); 7566 int res = REAL(sysctl)(name, namelen, oldp, oldlenp, newp, newlen); 7567 if (!res) { 7568 if (oldlenp) { 7569 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, oldlenp, sizeof(*oldlenp)); 7570 if (oldp) 7571 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, oldp, *oldlenp); 7572 } 7573 } 7574 return res; 7575 } 7576 7577 INTERCEPTOR(int, sysctlbyname, char *sname, void *oldp, SIZE_T *oldlenp, 7578 void *newp, SIZE_T newlen) { 7579 void *ctx; 7580 if (COMMON_INTERCEPTOR_NOTHING_IS_INITIALIZED) 7581 return internal_sysctlbyname(sname, oldp, oldlenp, newp, newlen); 7582 COMMON_INTERCEPTOR_ENTER(ctx, sysctlbyname, sname, oldp, oldlenp, newp, 7583 newlen); 7584 if (sname) 7585 COMMON_INTERCEPTOR_READ_RANGE(ctx, sname, REAL(strlen)(sname) + 1); 7586 if (oldlenp) 7587 COMMON_INTERCEPTOR_READ_RANGE(ctx, oldlenp, sizeof(*oldlenp)); 7588 if (newp && newlen) 7589 COMMON_INTERCEPTOR_READ_RANGE(ctx, newp, newlen); 7590 int res = REAL(sysctlbyname)(sname, oldp, oldlenp, newp, newlen); 7591 if (!res) { 7592 if (oldlenp) { 7593 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, oldlenp, sizeof(*oldlenp)); 7594 if (oldp) 7595 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, oldp, *oldlenp); 7596 } 7597 } 7598 return res; 7599 } 7600 7601 INTERCEPTOR(int, sysctlnametomib, const char *sname, int *name, 7602 SIZE_T *namelenp) { 7603 void *ctx; 7604 COMMON_INTERCEPTOR_ENTER(ctx, sysctlnametomib, sname, name, namelenp); 7605 if (sname) 7606 COMMON_INTERCEPTOR_READ_RANGE(ctx, sname, REAL(strlen)(sname) + 1); 7607 if (namelenp) 7608 COMMON_INTERCEPTOR_READ_RANGE(ctx, namelenp, sizeof(*namelenp)); 7609 int res = REAL(sysctlnametomib)(sname, name, namelenp); 7610 if (!res) { 7611 if (namelenp) { 7612 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, namelenp, sizeof(*namelenp)); 7613 if (name) 7614 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, name, *namelenp * sizeof(*name)); 7615 } 7616 } 7617 return res; 7618 } 7619 7620 #define INIT_SYSCTL \ 7621 COMMON_INTERCEPT_FUNCTION(sysctl); \ 7622 COMMON_INTERCEPT_FUNCTION(sysctlbyname); \ 7623 COMMON_INTERCEPT_FUNCTION(sysctlnametomib); 7624 #else 7625 #define INIT_SYSCTL 7626 #endif 7627 7628 #if SANITIZER_INTERCEPT_ASYSCTL 7629 INTERCEPTOR(void *, asysctl, const int *name, SIZE_T namelen, SIZE_T *len) { 7630 void *ctx; 7631 COMMON_INTERCEPTOR_ENTER(ctx, asysctl, name, namelen, len); 7632 if (name) 7633 COMMON_INTERCEPTOR_READ_RANGE(ctx, name, sizeof(*name) * namelen); 7634 void *res = REAL(asysctl)(name, namelen, len); 7635 if (res && len) { 7636 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, len, sizeof(*len)); 7637 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, res, *len); 7638 } 7639 return res; 7640 } 7641 7642 INTERCEPTOR(void *, asysctlbyname, const char *sname, SIZE_T *len) { 7643 void *ctx; 7644 COMMON_INTERCEPTOR_ENTER(ctx, asysctlbyname, sname, len); 7645 if (sname) 7646 COMMON_INTERCEPTOR_READ_RANGE(ctx, sname, REAL(strlen)(sname) + 1); 7647 void *res = REAL(asysctlbyname)(sname, len); 7648 if (res && len) { 7649 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, len, sizeof(*len)); 7650 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, res, *len); 7651 } 7652 return res; 7653 } 7654 #define INIT_ASYSCTL \ 7655 COMMON_INTERCEPT_FUNCTION(asysctl); \ 7656 COMMON_INTERCEPT_FUNCTION(asysctlbyname); 7657 #else 7658 #define INIT_ASYSCTL 7659 #endif 7660 7661 #if SANITIZER_INTERCEPT_SYSCTLGETMIBINFO 7662 INTERCEPTOR(int, sysctlgetmibinfo, char *sname, int *name, 7663 unsigned int *namelenp, char *cname, SIZE_T *csz, void **rnode, 7664 int v) { 7665 void *ctx; 7666 COMMON_INTERCEPTOR_ENTER(ctx, sysctlgetmibinfo, sname, name, namelenp, cname, 7667 csz, rnode, v); 7668 if (sname) 7669 COMMON_INTERCEPTOR_READ_RANGE(ctx, sname, REAL(strlen)(sname) + 1); 7670 if (namelenp) 7671 COMMON_INTERCEPTOR_READ_RANGE(ctx, namelenp, sizeof(*namelenp)); 7672 if (csz) 7673 COMMON_INTERCEPTOR_READ_RANGE(ctx, csz, sizeof(*csz)); 7674 // Skip rnode, it's rarely used and not trivial to sanitize 7675 // It's also used mostly internally 7676 int res = REAL(sysctlgetmibinfo)(sname, name, namelenp, cname, csz, rnode, v); 7677 if (!res) { 7678 if (namelenp) { 7679 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, namelenp, sizeof(*namelenp)); 7680 if (name) 7681 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, name, *namelenp * sizeof(*name)); 7682 } 7683 if (csz) { 7684 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, csz, sizeof(*csz)); 7685 if (cname) 7686 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, cname, *csz); 7687 } 7688 } 7689 return res; 7690 } 7691 #define INIT_SYSCTLGETMIBINFO \ 7692 COMMON_INTERCEPT_FUNCTION(sysctlgetmibinfo); 7693 #else 7694 #define INIT_SYSCTLGETMIBINFO 7695 #endif 7696 7697 #if SANITIZER_INTERCEPT_NL_LANGINFO 7698 INTERCEPTOR(char *, nl_langinfo, long item) { 7699 void *ctx; 7700 COMMON_INTERCEPTOR_ENTER(ctx, nl_langinfo, item); 7701 char *ret = REAL(nl_langinfo)(item); 7702 if (ret) 7703 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, ret, REAL(strlen)(ret) + 1); 7704 return ret; 7705 } 7706 #define INIT_NL_LANGINFO COMMON_INTERCEPT_FUNCTION(nl_langinfo) 7707 #else 7708 #define INIT_NL_LANGINFO 7709 #endif 7710 7711 #if SANITIZER_INTERCEPT_MODCTL 7712 INTERCEPTOR(int, modctl, int operation, void *argp) { 7713 void *ctx; 7714 int ret; 7715 COMMON_INTERCEPTOR_ENTER(ctx, modctl, operation, argp); 7716 7717 if (operation == modctl_load) { 7718 if (argp) { 7719 __sanitizer_modctl_load_t *ml = (__sanitizer_modctl_load_t *)argp; 7720 COMMON_INTERCEPTOR_READ_RANGE(ctx, ml, sizeof(*ml)); 7721 if (ml->ml_filename) 7722 COMMON_INTERCEPTOR_READ_RANGE(ctx, ml->ml_filename, 7723 REAL(strlen)(ml->ml_filename) + 1); 7724 if (ml->ml_props) 7725 COMMON_INTERCEPTOR_READ_RANGE(ctx, ml->ml_props, ml->ml_propslen); 7726 } 7727 ret = REAL(modctl)(operation, argp); 7728 } else if (operation == modctl_unload) { 7729 if (argp) { 7730 const char *name = (const char *)argp; 7731 COMMON_INTERCEPTOR_READ_RANGE(ctx, name, REAL(strlen)(name) + 1); 7732 } 7733 ret = REAL(modctl)(operation, argp); 7734 } else if (operation == modctl_stat) { 7735 uptr iov_len; 7736 struct __sanitizer_iovec *iov = (struct __sanitizer_iovec *)argp; 7737 if (iov) { 7738 COMMON_INTERCEPTOR_READ_RANGE(ctx, iov, sizeof(*iov)); 7739 iov_len = iov->iov_len; 7740 } 7741 ret = REAL(modctl)(operation, argp); 7742 if (iov) 7743 COMMON_INTERCEPTOR_WRITE_RANGE( 7744 ctx, iov->iov_base, Min(iov_len, iov->iov_len)); 7745 } else if (operation == modctl_exists) 7746 ret = REAL(modctl)(operation, argp); 7747 else 7748 ret = REAL(modctl)(operation, argp); 7749 7750 return ret; 7751 } 7752 #define INIT_MODCTL COMMON_INTERCEPT_FUNCTION(modctl) 7753 #else 7754 #define INIT_MODCTL 7755 #endif 7756 7757 #if SANITIZER_INTERCEPT_STRTONUM 7758 INTERCEPTOR(long long, strtonum, const char *nptr, long long minval, 7759 long long maxval, const char **errstr) { 7760 void *ctx; 7761 COMMON_INTERCEPTOR_ENTER(ctx, strtonum, nptr, minval, maxval, errstr); 7762 7763 // TODO(kamil): Implement strtoll as a common inteceptor 7764 char *real_endptr; 7765 long long ret = (long long)REAL(strtoimax)(nptr, &real_endptr, 10); 7766 StrtolFixAndCheck(ctx, nptr, nullptr, real_endptr, 10); 7767 7768 ret = REAL(strtonum)(nptr, minval, maxval, errstr); 7769 if (errstr) { 7770 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, errstr, sizeof(const char *)); 7771 if (*errstr) 7772 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, *errstr, REAL(strlen)(*errstr) + 1); 7773 } 7774 return ret; 7775 } 7776 #define INIT_STRTONUM COMMON_INTERCEPT_FUNCTION(strtonum) 7777 #else 7778 #define INIT_STRTONUM 7779 #endif 7780 7781 #if SANITIZER_INTERCEPT_FPARSELN 7782 INTERCEPTOR(char *, fparseln, __sanitizer_FILE *stream, SIZE_T *len, 7783 SIZE_T *lineno, const char delim[3], int flags) { 7784 void *ctx; 7785 COMMON_INTERCEPTOR_ENTER(ctx, fparseln, stream, len, lineno, delim, flags); 7786 if (lineno) 7787 COMMON_INTERCEPTOR_READ_RANGE(ctx, lineno, sizeof(*lineno)); 7788 if (delim) 7789 COMMON_INTERCEPTOR_READ_RANGE(ctx, delim, sizeof(delim[0]) * 3); 7790 char *ret = REAL(fparseln)(stream, len, lineno, delim, flags); 7791 if (ret) { 7792 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, ret, REAL(strlen)(ret) + 1); 7793 if (len) 7794 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, len, sizeof(*len)); 7795 if (lineno) 7796 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, lineno, sizeof(*lineno)); 7797 } 7798 return ret; 7799 } 7800 #define INIT_FPARSELN COMMON_INTERCEPT_FUNCTION(fparseln) 7801 #else 7802 #define INIT_FPARSELN 7803 #endif 7804 7805 #if SANITIZER_INTERCEPT_STATVFS1 7806 INTERCEPTOR(int, statvfs1, const char *path, void *buf, int flags) { 7807 void *ctx; 7808 COMMON_INTERCEPTOR_ENTER(ctx, statvfs1, path, buf, flags); 7809 if (path) COMMON_INTERCEPTOR_READ_RANGE(ctx, path, REAL(strlen)(path) + 1); 7810 int res = REAL(statvfs1)(path, buf, flags); 7811 if (!res) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, buf, struct_statvfs_sz); 7812 return res; 7813 } 7814 INTERCEPTOR(int, fstatvfs1, int fd, void *buf, int flags) { 7815 void *ctx; 7816 COMMON_INTERCEPTOR_ENTER(ctx, fstatvfs1, fd, buf, flags); 7817 COMMON_INTERCEPTOR_FD_ACCESS(ctx, fd); 7818 int res = REAL(fstatvfs1)(fd, buf, flags); 7819 if (!res) { 7820 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, buf, struct_statvfs_sz); 7821 if (fd >= 0) 7822 COMMON_INTERCEPTOR_FD_ACQUIRE(ctx, fd); 7823 } 7824 return res; 7825 } 7826 #define INIT_STATVFS1 \ 7827 COMMON_INTERCEPT_FUNCTION(statvfs1); \ 7828 COMMON_INTERCEPT_FUNCTION(fstatvfs1); 7829 #else 7830 #define INIT_STATVFS1 7831 #endif 7832 7833 #if SANITIZER_INTERCEPT_STRTOI 7834 INTERCEPTOR(INTMAX_T, strtoi, const char *nptr, char **endptr, int base, 7835 INTMAX_T low, INTMAX_T high, int *rstatus) { 7836 void *ctx; 7837 COMMON_INTERCEPTOR_ENTER(ctx, strtoi, nptr, endptr, base, low, high, rstatus); 7838 char *real_endptr; 7839 INTMAX_T ret = REAL(strtoi)(nptr, &real_endptr, base, low, high, rstatus); 7840 StrtolFixAndCheck(ctx, nptr, endptr, real_endptr, base); 7841 if (rstatus) 7842 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, rstatus, sizeof(*rstatus)); 7843 return ret; 7844 } 7845 7846 INTERCEPTOR(UINTMAX_T, strtou, const char *nptr, char **endptr, int base, 7847 UINTMAX_T low, UINTMAX_T high, int *rstatus) { 7848 void *ctx; 7849 COMMON_INTERCEPTOR_ENTER(ctx, strtou, nptr, endptr, base, low, high, rstatus); 7850 char *real_endptr; 7851 UINTMAX_T ret = REAL(strtou)(nptr, &real_endptr, base, low, high, rstatus); 7852 StrtolFixAndCheck(ctx, nptr, endptr, real_endptr, base); 7853 if (rstatus) 7854 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, rstatus, sizeof(*rstatus)); 7855 return ret; 7856 } 7857 #define INIT_STRTOI \ 7858 COMMON_INTERCEPT_FUNCTION(strtoi); \ 7859 COMMON_INTERCEPT_FUNCTION(strtou) 7860 #else 7861 #define INIT_STRTOI 7862 #endif 7863 7864 #if SANITIZER_INTERCEPT_CAPSICUM 7865 #define CAP_RIGHTS_INIT_INTERCEPTOR(cap_rights_init, rights, ...) \ 7866 { \ 7867 void *ctx; \ 7868 COMMON_INTERCEPTOR_ENTER(ctx, cap_rights_init, rights, ##__VA_ARGS__); \ 7869 if (rights) \ 7870 COMMON_INTERCEPTOR_READ_RANGE(ctx, rights, sizeof(*rights)); \ 7871 __sanitizer_cap_rights_t *ret = \ 7872 REAL(cap_rights_init)(rights, ##__VA_ARGS__); \ 7873 if (ret) \ 7874 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, ret, sizeof(*ret)); \ 7875 return ret; \ 7876 } 7877 7878 #define CAP_RIGHTS_SET_INTERCEPTOR(cap_rights_set, rights, ...) \ 7879 { \ 7880 void *ctx; \ 7881 COMMON_INTERCEPTOR_ENTER(ctx, cap_rights_set, rights, ##__VA_ARGS__); \ 7882 if (rights) \ 7883 COMMON_INTERCEPTOR_READ_RANGE(ctx, rights, sizeof(*rights)); \ 7884 __sanitizer_cap_rights_t *ret = \ 7885 REAL(cap_rights_set)(rights, ##__VA_ARGS__); \ 7886 if (ret) \ 7887 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, ret, sizeof(*ret)); \ 7888 return ret; \ 7889 } 7890 7891 #define CAP_RIGHTS_CLEAR_INTERCEPTOR(cap_rights_clear, rights, ...) \ 7892 { \ 7893 void *ctx; \ 7894 COMMON_INTERCEPTOR_ENTER(ctx, cap_rights_clear, rights, ##__VA_ARGS__); \ 7895 if (rights) \ 7896 COMMON_INTERCEPTOR_READ_RANGE(ctx, rights, sizeof(*rights)); \ 7897 __sanitizer_cap_rights_t *ret = \ 7898 REAL(cap_rights_clear)(rights, ##__VA_ARGS__); \ 7899 if (ret) \ 7900 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, ret, sizeof(*ret)); \ 7901 return ret; \ 7902 } 7903 7904 #define CAP_RIGHTS_IS_SET_INTERCEPTOR(cap_rights_is_set, rights, ...) \ 7905 { \ 7906 void *ctx; \ 7907 COMMON_INTERCEPTOR_ENTER(ctx, cap_rights_is_set, rights, ##__VA_ARGS__); \ 7908 if (rights) \ 7909 COMMON_INTERCEPTOR_READ_RANGE(ctx, rights, sizeof(*rights)); \ 7910 return REAL(cap_rights_is_set)(rights, ##__VA_ARGS__); \ 7911 } 7912 7913 INTERCEPTOR(__sanitizer_cap_rights_t *, cap_rights_init, 7914 __sanitizer_cap_rights_t *rights) { 7915 CAP_RIGHTS_INIT_INTERCEPTOR(cap_rights_init, rights); 7916 } 7917 7918 INTERCEPTOR(__sanitizer_cap_rights_t *, cap_rights_set, 7919 __sanitizer_cap_rights_t *rights) { 7920 CAP_RIGHTS_SET_INTERCEPTOR(cap_rights_set, rights); 7921 } 7922 7923 INTERCEPTOR(__sanitizer_cap_rights_t *, cap_rights_clear, 7924 __sanitizer_cap_rights_t *rights) { 7925 CAP_RIGHTS_CLEAR_INTERCEPTOR(cap_rights_clear, rights); 7926 } 7927 7928 INTERCEPTOR(bool, cap_rights_is_set, 7929 __sanitizer_cap_rights_t *rights) { 7930 CAP_RIGHTS_IS_SET_INTERCEPTOR(cap_rights_is_set, rights); 7931 } 7932 7933 INTERCEPTOR(int, cap_rights_limit, int fd, 7934 const __sanitizer_cap_rights_t *rights) { 7935 void *ctx; 7936 COMMON_INTERCEPTOR_ENTER(ctx, cap_rights_limit, fd, rights); 7937 if (rights) 7938 COMMON_INTERCEPTOR_READ_RANGE(ctx, rights, sizeof(*rights)); 7939 7940 return REAL(cap_rights_limit)(fd, rights); 7941 } 7942 7943 INTERCEPTOR(int, cap_rights_get, int fd, __sanitizer_cap_rights_t *rights) { 7944 void *ctx; 7945 COMMON_INTERCEPTOR_ENTER(ctx, cap_rights_get, fd, rights); 7946 int ret = REAL(cap_rights_get)(fd, rights); 7947 if (!ret && rights) 7948 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, rights, sizeof(*rights)); 7949 7950 return ret; 7951 } 7952 7953 INTERCEPTOR(bool, cap_rights_is_valid, const __sanitizer_cap_rights_t *rights) { 7954 void *ctx; 7955 COMMON_INTERCEPTOR_ENTER(ctx, cap_rights_is_valid, rights); 7956 if (rights) 7957 COMMON_INTERCEPTOR_READ_RANGE(ctx, rights, sizeof(*rights)); 7958 7959 return REAL(cap_rights_is_valid(rights)); 7960 } 7961 7962 INTERCEPTOR(__sanitizer_cap_rights *, cap_rights_merge, 7963 __sanitizer_cap_rights *dst, const __sanitizer_cap_rights *src) { 7964 void *ctx; 7965 COMMON_INTERCEPTOR_ENTER(ctx, cap_rights_merge, dst, src); 7966 if (src) 7967 COMMON_INTERCEPTOR_READ_RANGE(ctx, src, sizeof(*src)); 7968 7969 __sanitizer_cap_rights *ret = REAL(cap_rights_merge)(dst, src); 7970 if (dst) 7971 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, dst, sizeof(*dst)); 7972 7973 return ret; 7974 } 7975 7976 INTERCEPTOR(__sanitizer_cap_rights *, cap_rights_remove, 7977 __sanitizer_cap_rights *dst, const __sanitizer_cap_rights *src) { 7978 void *ctx; 7979 COMMON_INTERCEPTOR_ENTER(ctx, cap_rights_remove, dst, src); 7980 if (src) 7981 COMMON_INTERCEPTOR_READ_RANGE(ctx, src, sizeof(*src)); 7982 7983 __sanitizer_cap_rights *ret = REAL(cap_rights_remove)(dst, src); 7984 if (dst) 7985 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, dst, sizeof(*dst)); 7986 7987 return ret; 7988 } 7989 7990 INTERCEPTOR(bool, cap_rights_contains, const __sanitizer_cap_rights *big, 7991 const __sanitizer_cap_rights *little) { 7992 void *ctx; 7993 COMMON_INTERCEPTOR_ENTER(ctx, cap_rights_contains, big, little); 7994 if (little) 7995 COMMON_INTERCEPTOR_READ_RANGE(ctx, little, sizeof(*little)); 7996 if (big) 7997 COMMON_INTERCEPTOR_READ_RANGE(ctx, big, sizeof(*big)); 7998 7999 return REAL(cap_rights_contains)(big, little); 8000 } 8001 8002 INTERCEPTOR(int, cap_ioctls_limit, int fd, const uptr *cmds, SIZE_T ncmds) { 8003 void *ctx; 8004 COMMON_INTERCEPTOR_ENTER(ctx, cap_ioctls_limit, fd, cmds, ncmds); 8005 if (cmds) 8006 COMMON_INTERCEPTOR_READ_RANGE(ctx, cmds, sizeof(*cmds) * ncmds); 8007 8008 return REAL(cap_ioctls_limit)(fd, cmds, ncmds); 8009 } 8010 8011 INTERCEPTOR(int, cap_ioctls_get, int fd, uptr *cmds, SIZE_T maxcmds) { 8012 void *ctx; 8013 COMMON_INTERCEPTOR_ENTER(ctx, cap_ioctls_get, fd, cmds, maxcmds); 8014 int ret = REAL(cap_ioctls_get)(fd, cmds, maxcmds); 8015 if (!ret && cmds) 8016 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, cmds, sizeof(*cmds) * maxcmds); 8017 8018 return ret; 8019 } 8020 #define INIT_CAPSICUM \ 8021 COMMON_INTERCEPT_FUNCTION(cap_rights_init); \ 8022 COMMON_INTERCEPT_FUNCTION(cap_rights_set); \ 8023 COMMON_INTERCEPT_FUNCTION(cap_rights_clear); \ 8024 COMMON_INTERCEPT_FUNCTION(cap_rights_is_set); \ 8025 COMMON_INTERCEPT_FUNCTION(cap_rights_get); \ 8026 COMMON_INTERCEPT_FUNCTION(cap_rights_limit); \ 8027 COMMON_INTERCEPT_FUNCTION(cap_rights_contains); \ 8028 COMMON_INTERCEPT_FUNCTION(cap_rights_remove); \ 8029 COMMON_INTERCEPT_FUNCTION(cap_rights_merge); \ 8030 COMMON_INTERCEPT_FUNCTION(cap_rights_is_valid); \ 8031 COMMON_INTERCEPT_FUNCTION(cap_ioctls_get); \ 8032 COMMON_INTERCEPT_FUNCTION(cap_ioctls_limit) 8033 #else 8034 #define INIT_CAPSICUM 8035 #endif 8036 8037 #if SANITIZER_INTERCEPT_SHA1 8038 INTERCEPTOR(void, SHA1Init, void *context) { 8039 void *ctx; 8040 COMMON_INTERCEPTOR_ENTER(ctx, SHA1Init, context); 8041 REAL(SHA1Init)(context); 8042 if (context) 8043 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, context, SHA1_CTX_sz); 8044 } 8045 INTERCEPTOR(void, SHA1Update, void *context, const u8 *data, unsigned len) { 8046 void *ctx; 8047 COMMON_INTERCEPTOR_ENTER(ctx, SHA1Update, context, data, len); 8048 if (data && len > 0) 8049 COMMON_INTERCEPTOR_READ_RANGE(ctx, data, len); 8050 if (context) 8051 COMMON_INTERCEPTOR_READ_RANGE(ctx, context, SHA1_CTX_sz); 8052 REAL(SHA1Update)(context, data, len); 8053 if (context) 8054 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, context, SHA1_CTX_sz); 8055 } 8056 INTERCEPTOR(void, SHA1Final, u8 digest[20], void *context) { 8057 void *ctx; 8058 COMMON_INTERCEPTOR_ENTER(ctx, SHA1Final, digest, context); 8059 if (context) 8060 COMMON_INTERCEPTOR_READ_RANGE(ctx, context, SHA1_CTX_sz); 8061 REAL(SHA1Final)(digest, context); 8062 if (digest) 8063 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, digest, sizeof(u8) * 20); 8064 } 8065 INTERCEPTOR(void, SHA1Transform, u32 state[5], u8 buffer[64]) { 8066 void *ctx; 8067 COMMON_INTERCEPTOR_ENTER(ctx, SHA1Transform, state, buffer); 8068 if (state) 8069 COMMON_INTERCEPTOR_READ_RANGE(ctx, state, sizeof(u32) * 5); 8070 if (buffer) 8071 COMMON_INTERCEPTOR_READ_RANGE(ctx, buffer, sizeof(u8) * 64); 8072 REAL(SHA1Transform)(state, buffer); 8073 if (state) 8074 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, state, sizeof(u32) * 5); 8075 } 8076 INTERCEPTOR(char *, SHA1End, void *context, char *buf) { 8077 void *ctx; 8078 COMMON_INTERCEPTOR_ENTER(ctx, SHA1End, context, buf); 8079 if (context) 8080 COMMON_INTERCEPTOR_READ_RANGE(ctx, context, SHA1_CTX_sz); 8081 char *ret = REAL(SHA1End)(context, buf); 8082 if (ret) 8083 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, ret, SHA1_return_length); 8084 return ret; 8085 } 8086 INTERCEPTOR(char *, SHA1File, char *filename, char *buf) { 8087 void *ctx; 8088 COMMON_INTERCEPTOR_ENTER(ctx, SHA1File, filename, buf); 8089 if (filename) 8090 COMMON_INTERCEPTOR_READ_RANGE(ctx, filename, REAL(strlen)(filename) + 1); 8091 char *ret = REAL(SHA1File)(filename, buf); 8092 if (ret) 8093 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, ret, SHA1_return_length); 8094 return ret; 8095 } 8096 INTERCEPTOR(char *, SHA1FileChunk, char *filename, char *buf, OFF_T offset, 8097 OFF_T length) { 8098 void *ctx; 8099 COMMON_INTERCEPTOR_ENTER(ctx, SHA1FileChunk, filename, buf, offset, length); 8100 if (filename) 8101 COMMON_INTERCEPTOR_READ_RANGE(ctx, filename, REAL(strlen)(filename) + 1); 8102 char *ret = REAL(SHA1FileChunk)(filename, buf, offset, length); 8103 if (ret) 8104 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, ret, SHA1_return_length); 8105 return ret; 8106 } 8107 INTERCEPTOR(char *, SHA1Data, u8 *data, SIZE_T len, char *buf) { 8108 void *ctx; 8109 COMMON_INTERCEPTOR_ENTER(ctx, SHA1Data, data, len, buf); 8110 if (data) 8111 COMMON_INTERCEPTOR_READ_RANGE(ctx, data, len); 8112 char *ret = REAL(SHA1Data)(data, len, buf); 8113 if (ret) 8114 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, ret, SHA1_return_length); 8115 return ret; 8116 } 8117 #define INIT_SHA1 \ 8118 COMMON_INTERCEPT_FUNCTION(SHA1Init); \ 8119 COMMON_INTERCEPT_FUNCTION(SHA1Update); \ 8120 COMMON_INTERCEPT_FUNCTION(SHA1Final); \ 8121 COMMON_INTERCEPT_FUNCTION(SHA1Transform); \ 8122 COMMON_INTERCEPT_FUNCTION(SHA1End); \ 8123 COMMON_INTERCEPT_FUNCTION(SHA1File); \ 8124 COMMON_INTERCEPT_FUNCTION(SHA1FileChunk); \ 8125 COMMON_INTERCEPT_FUNCTION(SHA1Data) 8126 #else 8127 #define INIT_SHA1 8128 #endif 8129 8130 #if SANITIZER_INTERCEPT_MD4 8131 INTERCEPTOR(void, MD4Init, void *context) { 8132 void *ctx; 8133 COMMON_INTERCEPTOR_ENTER(ctx, MD4Init, context); 8134 REAL(MD4Init)(context); 8135 if (context) 8136 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, context, MD4_CTX_sz); 8137 } 8138 8139 INTERCEPTOR(void, MD4Update, void *context, const unsigned char *data, 8140 unsigned int len) { 8141 void *ctx; 8142 COMMON_INTERCEPTOR_ENTER(ctx, MD4Update, context, data, len); 8143 if (data && len > 0) 8144 COMMON_INTERCEPTOR_READ_RANGE(ctx, data, len); 8145 if (context) 8146 COMMON_INTERCEPTOR_READ_RANGE(ctx, context, MD4_CTX_sz); 8147 REAL(MD4Update)(context, data, len); 8148 if (context) 8149 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, context, MD4_CTX_sz); 8150 } 8151 8152 INTERCEPTOR(void, MD4Final, unsigned char digest[16], void *context) { 8153 void *ctx; 8154 COMMON_INTERCEPTOR_ENTER(ctx, MD4Final, digest, context); 8155 if (context) 8156 COMMON_INTERCEPTOR_READ_RANGE(ctx, context, MD4_CTX_sz); 8157 REAL(MD4Final)(digest, context); 8158 if (digest) 8159 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, digest, sizeof(unsigned char) * 16); 8160 } 8161 8162 INTERCEPTOR(char *, MD4End, void *context, char *buf) { 8163 void *ctx; 8164 COMMON_INTERCEPTOR_ENTER(ctx, MD4End, context, buf); 8165 if (context) 8166 COMMON_INTERCEPTOR_READ_RANGE(ctx, context, MD4_CTX_sz); 8167 char *ret = REAL(MD4End)(context, buf); 8168 if (ret) 8169 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, ret, MD4_return_length); 8170 return ret; 8171 } 8172 8173 INTERCEPTOR(char *, MD4File, const char *filename, char *buf) { 8174 void *ctx; 8175 COMMON_INTERCEPTOR_ENTER(ctx, MD4File, filename, buf); 8176 if (filename) 8177 COMMON_INTERCEPTOR_READ_RANGE(ctx, filename, REAL(strlen)(filename) + 1); 8178 char *ret = REAL(MD4File)(filename, buf); 8179 if (ret) 8180 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, ret, MD4_return_length); 8181 return ret; 8182 } 8183 8184 INTERCEPTOR(char *, MD4Data, const unsigned char *data, unsigned int len, 8185 char *buf) { 8186 void *ctx; 8187 COMMON_INTERCEPTOR_ENTER(ctx, MD4Data, data, len, buf); 8188 if (data && len > 0) 8189 COMMON_INTERCEPTOR_READ_RANGE(ctx, data, len); 8190 char *ret = REAL(MD4Data)(data, len, buf); 8191 if (ret) 8192 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, ret, MD4_return_length); 8193 return ret; 8194 } 8195 8196 #define INIT_MD4 \ 8197 COMMON_INTERCEPT_FUNCTION(MD4Init); \ 8198 COMMON_INTERCEPT_FUNCTION(MD4Update); \ 8199 COMMON_INTERCEPT_FUNCTION(MD4Final); \ 8200 COMMON_INTERCEPT_FUNCTION(MD4End); \ 8201 COMMON_INTERCEPT_FUNCTION(MD4File); \ 8202 COMMON_INTERCEPT_FUNCTION(MD4Data) 8203 #else 8204 #define INIT_MD4 8205 #endif 8206 8207 #if SANITIZER_INTERCEPT_RMD160 8208 INTERCEPTOR(void, RMD160Init, void *context) { 8209 void *ctx; 8210 COMMON_INTERCEPTOR_ENTER(ctx, RMD160Init, context); 8211 REAL(RMD160Init)(context); 8212 if (context) 8213 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, context, RMD160_CTX_sz); 8214 } 8215 INTERCEPTOR(void, RMD160Update, void *context, const u8 *data, unsigned len) { 8216 void *ctx; 8217 COMMON_INTERCEPTOR_ENTER(ctx, RMD160Update, context, data, len); 8218 if (data && len > 0) 8219 COMMON_INTERCEPTOR_READ_RANGE(ctx, data, len); 8220 if (context) 8221 COMMON_INTERCEPTOR_READ_RANGE(ctx, context, RMD160_CTX_sz); 8222 REAL(RMD160Update)(context, data, len); 8223 if (context) 8224 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, context, RMD160_CTX_sz); 8225 } 8226 INTERCEPTOR(void, RMD160Final, u8 digest[20], void *context) { 8227 void *ctx; 8228 COMMON_INTERCEPTOR_ENTER(ctx, RMD160Final, digest, context); 8229 if (context) 8230 COMMON_INTERCEPTOR_READ_RANGE(ctx, context, RMD160_CTX_sz); 8231 REAL(RMD160Final)(digest, context); 8232 if (digest) 8233 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, digest, sizeof(u8) * 20); 8234 } 8235 INTERCEPTOR(void, RMD160Transform, u32 state[5], u16 buffer[16]) { 8236 void *ctx; 8237 COMMON_INTERCEPTOR_ENTER(ctx, RMD160Transform, state, buffer); 8238 if (state) 8239 COMMON_INTERCEPTOR_READ_RANGE(ctx, state, sizeof(u32) * 5); 8240 if (buffer) 8241 COMMON_INTERCEPTOR_READ_RANGE(ctx, buffer, sizeof(u32) * 16); 8242 REAL(RMD160Transform)(state, buffer); 8243 if (state) 8244 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, state, sizeof(u32) * 5); 8245 } 8246 INTERCEPTOR(char *, RMD160End, void *context, char *buf) { 8247 void *ctx; 8248 COMMON_INTERCEPTOR_ENTER(ctx, RMD160End, context, buf); 8249 if (context) 8250 COMMON_INTERCEPTOR_READ_RANGE(ctx, context, RMD160_CTX_sz); 8251 char *ret = REAL(RMD160End)(context, buf); 8252 if (ret) 8253 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, ret, RMD160_return_length); 8254 return ret; 8255 } 8256 INTERCEPTOR(char *, RMD160File, char *filename, char *buf) { 8257 void *ctx; 8258 COMMON_INTERCEPTOR_ENTER(ctx, RMD160File, filename, buf); 8259 if (filename) 8260 COMMON_INTERCEPTOR_READ_RANGE(ctx, filename, REAL(strlen)(filename) + 1); 8261 char *ret = REAL(RMD160File)(filename, buf); 8262 if (ret) 8263 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, ret, RMD160_return_length); 8264 return ret; 8265 } 8266 INTERCEPTOR(char *, RMD160FileChunk, char *filename, char *buf, OFF_T offset, 8267 OFF_T length) { 8268 void *ctx; 8269 COMMON_INTERCEPTOR_ENTER(ctx, RMD160FileChunk, filename, buf, offset, length); 8270 if (filename) 8271 COMMON_INTERCEPTOR_READ_RANGE(ctx, filename, REAL(strlen)(filename) + 1); 8272 char *ret = REAL(RMD160FileChunk)(filename, buf, offset, length); 8273 if (ret) 8274 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, ret, RMD160_return_length); 8275 return ret; 8276 } 8277 INTERCEPTOR(char *, RMD160Data, u8 *data, SIZE_T len, char *buf) { 8278 void *ctx; 8279 COMMON_INTERCEPTOR_ENTER(ctx, RMD160Data, data, len, buf); 8280 if (data && len > 0) 8281 COMMON_INTERCEPTOR_READ_RANGE(ctx, data, len); 8282 char *ret = REAL(RMD160Data)(data, len, buf); 8283 if (ret) 8284 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, ret, RMD160_return_length); 8285 return ret; 8286 } 8287 #define INIT_RMD160 \ 8288 COMMON_INTERCEPT_FUNCTION(RMD160Init); \ 8289 COMMON_INTERCEPT_FUNCTION(RMD160Update); \ 8290 COMMON_INTERCEPT_FUNCTION(RMD160Final); \ 8291 COMMON_INTERCEPT_FUNCTION(RMD160Transform); \ 8292 COMMON_INTERCEPT_FUNCTION(RMD160End); \ 8293 COMMON_INTERCEPT_FUNCTION(RMD160File); \ 8294 COMMON_INTERCEPT_FUNCTION(RMD160FileChunk); \ 8295 COMMON_INTERCEPT_FUNCTION(RMD160Data) 8296 #else 8297 #define INIT_RMD160 8298 #endif 8299 8300 #if SANITIZER_INTERCEPT_MD5 8301 INTERCEPTOR(void, MD5Init, void *context) { 8302 void *ctx; 8303 COMMON_INTERCEPTOR_ENTER(ctx, MD5Init, context); 8304 REAL(MD5Init)(context); 8305 if (context) 8306 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, context, MD5_CTX_sz); 8307 } 8308 8309 INTERCEPTOR(void, MD5Update, void *context, const unsigned char *data, 8310 unsigned int len) { 8311 void *ctx; 8312 COMMON_INTERCEPTOR_ENTER(ctx, MD5Update, context, data, len); 8313 if (data && len > 0) 8314 COMMON_INTERCEPTOR_READ_RANGE(ctx, data, len); 8315 if (context) 8316 COMMON_INTERCEPTOR_READ_RANGE(ctx, context, MD5_CTX_sz); 8317 REAL(MD5Update)(context, data, len); 8318 if (context) 8319 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, context, MD5_CTX_sz); 8320 } 8321 8322 INTERCEPTOR(void, MD5Final, unsigned char digest[16], void *context) { 8323 void *ctx; 8324 COMMON_INTERCEPTOR_ENTER(ctx, MD5Final, digest, context); 8325 if (context) 8326 COMMON_INTERCEPTOR_READ_RANGE(ctx, context, MD5_CTX_sz); 8327 REAL(MD5Final)(digest, context); 8328 if (digest) 8329 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, digest, sizeof(unsigned char) * 16); 8330 } 8331 8332 INTERCEPTOR(char *, MD5End, void *context, char *buf) { 8333 void *ctx; 8334 COMMON_INTERCEPTOR_ENTER(ctx, MD5End, context, buf); 8335 if (context) 8336 COMMON_INTERCEPTOR_READ_RANGE(ctx, context, MD5_CTX_sz); 8337 char *ret = REAL(MD5End)(context, buf); 8338 if (ret) 8339 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, ret, MD5_return_length); 8340 return ret; 8341 } 8342 8343 INTERCEPTOR(char *, MD5File, const char *filename, char *buf) { 8344 void *ctx; 8345 COMMON_INTERCEPTOR_ENTER(ctx, MD5File, filename, buf); 8346 if (filename) 8347 COMMON_INTERCEPTOR_READ_RANGE(ctx, filename, REAL(strlen)(filename) + 1); 8348 char *ret = REAL(MD5File)(filename, buf); 8349 if (ret) 8350 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, ret, MD5_return_length); 8351 return ret; 8352 } 8353 8354 INTERCEPTOR(char *, MD5Data, const unsigned char *data, unsigned int len, 8355 char *buf) { 8356 void *ctx; 8357 COMMON_INTERCEPTOR_ENTER(ctx, MD5Data, data, len, buf); 8358 if (data && len > 0) 8359 COMMON_INTERCEPTOR_READ_RANGE(ctx, data, len); 8360 char *ret = REAL(MD5Data)(data, len, buf); 8361 if (ret) 8362 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, ret, MD5_return_length); 8363 return ret; 8364 } 8365 8366 #define INIT_MD5 \ 8367 COMMON_INTERCEPT_FUNCTION(MD5Init); \ 8368 COMMON_INTERCEPT_FUNCTION(MD5Update); \ 8369 COMMON_INTERCEPT_FUNCTION(MD5Final); \ 8370 COMMON_INTERCEPT_FUNCTION(MD5End); \ 8371 COMMON_INTERCEPT_FUNCTION(MD5File); \ 8372 COMMON_INTERCEPT_FUNCTION(MD5Data) 8373 #else 8374 #define INIT_MD5 8375 #endif 8376 8377 #if SANITIZER_INTERCEPT_FSEEK 8378 INTERCEPTOR(int, fseek, __sanitizer_FILE *stream, long int offset, int whence) { 8379 void *ctx; 8380 COMMON_INTERCEPTOR_ENTER(ctx, fseek, stream, offset, whence); 8381 return REAL(fseek)(stream, offset, whence); 8382 } 8383 INTERCEPTOR(int, fseeko, __sanitizer_FILE *stream, OFF_T offset, int whence) { 8384 void *ctx; 8385 COMMON_INTERCEPTOR_ENTER(ctx, fseeko, stream, offset, whence); 8386 return REAL(fseeko)(stream, offset, whence); 8387 } 8388 INTERCEPTOR(long int, ftell, __sanitizer_FILE *stream) { 8389 void *ctx; 8390 COMMON_INTERCEPTOR_ENTER(ctx, ftell, stream); 8391 return REAL(ftell)(stream); 8392 } 8393 INTERCEPTOR(OFF_T, ftello, __sanitizer_FILE *stream) { 8394 void *ctx; 8395 COMMON_INTERCEPTOR_ENTER(ctx, ftello, stream); 8396 return REAL(ftello)(stream); 8397 } 8398 INTERCEPTOR(void, rewind, __sanitizer_FILE *stream) { 8399 void *ctx; 8400 COMMON_INTERCEPTOR_ENTER(ctx, rewind, stream); 8401 return REAL(rewind)(stream); 8402 } 8403 INTERCEPTOR(int, fgetpos, __sanitizer_FILE *stream, void *pos) { 8404 void *ctx; 8405 COMMON_INTERCEPTOR_ENTER(ctx, fgetpos, stream, pos); 8406 int ret = REAL(fgetpos)(stream, pos); 8407 if (pos && !ret) 8408 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, pos, fpos_t_sz); 8409 return ret; 8410 } 8411 INTERCEPTOR(int, fsetpos, __sanitizer_FILE *stream, const void *pos) { 8412 void *ctx; 8413 COMMON_INTERCEPTOR_ENTER(ctx, fsetpos, stream, pos); 8414 if (pos) 8415 COMMON_INTERCEPTOR_READ_RANGE(ctx, pos, fpos_t_sz); 8416 return REAL(fsetpos)(stream, pos); 8417 } 8418 #define INIT_FSEEK \ 8419 COMMON_INTERCEPT_FUNCTION(fseek); \ 8420 COMMON_INTERCEPT_FUNCTION(fseeko); \ 8421 COMMON_INTERCEPT_FUNCTION(ftell); \ 8422 COMMON_INTERCEPT_FUNCTION(ftello); \ 8423 COMMON_INTERCEPT_FUNCTION(rewind); \ 8424 COMMON_INTERCEPT_FUNCTION(fgetpos); \ 8425 COMMON_INTERCEPT_FUNCTION(fsetpos) 8426 #else 8427 #define INIT_FSEEK 8428 #endif 8429 8430 #if SANITIZER_INTERCEPT_MD2 8431 INTERCEPTOR(void, MD2Init, void *context) { 8432 void *ctx; 8433 COMMON_INTERCEPTOR_ENTER(ctx, MD2Init, context); 8434 REAL(MD2Init)(context); 8435 if (context) 8436 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, context, MD2_CTX_sz); 8437 } 8438 8439 INTERCEPTOR(void, MD2Update, void *context, const unsigned char *data, 8440 unsigned int len) { 8441 void *ctx; 8442 COMMON_INTERCEPTOR_ENTER(ctx, MD2Update, context, data, len); 8443 if (data && len > 0) 8444 COMMON_INTERCEPTOR_READ_RANGE(ctx, data, len); 8445 if (context) 8446 COMMON_INTERCEPTOR_READ_RANGE(ctx, context, MD2_CTX_sz); 8447 REAL(MD2Update)(context, data, len); 8448 if (context) 8449 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, context, MD2_CTX_sz); 8450 } 8451 8452 INTERCEPTOR(void, MD2Final, unsigned char digest[16], void *context) { 8453 void *ctx; 8454 COMMON_INTERCEPTOR_ENTER(ctx, MD2Final, digest, context); 8455 if (context) 8456 COMMON_INTERCEPTOR_READ_RANGE(ctx, context, MD2_CTX_sz); 8457 REAL(MD2Final)(digest, context); 8458 if (digest) 8459 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, digest, sizeof(unsigned char) * 16); 8460 } 8461 8462 INTERCEPTOR(char *, MD2End, void *context, char *buf) { 8463 void *ctx; 8464 COMMON_INTERCEPTOR_ENTER(ctx, MD2End, context, buf); 8465 if (context) 8466 COMMON_INTERCEPTOR_READ_RANGE(ctx, context, MD2_CTX_sz); 8467 char *ret = REAL(MD2End)(context, buf); 8468 if (ret) 8469 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, ret, MD2_return_length); 8470 return ret; 8471 } 8472 8473 INTERCEPTOR(char *, MD2File, const char *filename, char *buf) { 8474 void *ctx; 8475 COMMON_INTERCEPTOR_ENTER(ctx, MD2File, filename, buf); 8476 if (filename) 8477 COMMON_INTERCEPTOR_READ_RANGE(ctx, filename, REAL(strlen)(filename) + 1); 8478 char *ret = REAL(MD2File)(filename, buf); 8479 if (ret) 8480 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, ret, MD2_return_length); 8481 return ret; 8482 } 8483 8484 INTERCEPTOR(char *, MD2Data, const unsigned char *data, unsigned int len, 8485 char *buf) { 8486 void *ctx; 8487 COMMON_INTERCEPTOR_ENTER(ctx, MD2Data, data, len, buf); 8488 if (data && len > 0) 8489 COMMON_INTERCEPTOR_READ_RANGE(ctx, data, len); 8490 char *ret = REAL(MD2Data)(data, len, buf); 8491 if (ret) 8492 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, ret, MD2_return_length); 8493 return ret; 8494 } 8495 8496 #define INIT_MD2 \ 8497 COMMON_INTERCEPT_FUNCTION(MD2Init); \ 8498 COMMON_INTERCEPT_FUNCTION(MD2Update); \ 8499 COMMON_INTERCEPT_FUNCTION(MD2Final); \ 8500 COMMON_INTERCEPT_FUNCTION(MD2End); \ 8501 COMMON_INTERCEPT_FUNCTION(MD2File); \ 8502 COMMON_INTERCEPT_FUNCTION(MD2Data) 8503 #else 8504 #define INIT_MD2 8505 #endif 8506 8507 #if SANITIZER_INTERCEPT_SHA2 8508 #define SHA2_INTERCEPTORS(LEN, SHA2_STATE_T) \ 8509 INTERCEPTOR(void, SHA##LEN##_Init, void *context) { \ 8510 void *ctx; \ 8511 COMMON_INTERCEPTOR_ENTER(ctx, SHA##LEN##_Init, context); \ 8512 REAL(SHA##LEN##_Init)(context); \ 8513 if (context) \ 8514 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, context, SHA##LEN##_CTX_sz); \ 8515 } \ 8516 INTERCEPTOR(void, SHA##LEN##_Update, void *context, \ 8517 const u8 *data, SIZE_T len) { \ 8518 void *ctx; \ 8519 COMMON_INTERCEPTOR_ENTER(ctx, SHA##LEN##_Update, context, data, len); \ 8520 if (data && len > 0) \ 8521 COMMON_INTERCEPTOR_READ_RANGE(ctx, data, len); \ 8522 if (context) \ 8523 COMMON_INTERCEPTOR_READ_RANGE(ctx, context, SHA##LEN##_CTX_sz); \ 8524 REAL(SHA##LEN##_Update)(context, data, len); \ 8525 if (context) \ 8526 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, context, SHA##LEN##_CTX_sz); \ 8527 } \ 8528 INTERCEPTOR(void, SHA##LEN##_Final, u8 digest[LEN/8], \ 8529 void *context) { \ 8530 void *ctx; \ 8531 CHECK_EQ(SHA##LEN##_digest_length, LEN/8); \ 8532 COMMON_INTERCEPTOR_ENTER(ctx, SHA##LEN##_Final, digest, context); \ 8533 if (context) \ 8534 COMMON_INTERCEPTOR_READ_RANGE(ctx, context, SHA##LEN##_CTX_sz); \ 8535 REAL(SHA##LEN##_Final)(digest, context); \ 8536 if (digest) \ 8537 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, digest, \ 8538 sizeof(digest[0]) * \ 8539 SHA##LEN##_digest_length); \ 8540 } \ 8541 INTERCEPTOR(char *, SHA##LEN##_End, void *context, char *buf) { \ 8542 void *ctx; \ 8543 COMMON_INTERCEPTOR_ENTER(ctx, SHA##LEN##_End, context, buf); \ 8544 if (context) \ 8545 COMMON_INTERCEPTOR_READ_RANGE(ctx, context, SHA##LEN##_CTX_sz); \ 8546 char *ret = REAL(SHA##LEN##_End)(context, buf); \ 8547 if (ret) \ 8548 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, ret, SHA##LEN##_return_length); \ 8549 return ret; \ 8550 } \ 8551 INTERCEPTOR(char *, SHA##LEN##_File, const char *filename, char *buf) { \ 8552 void *ctx; \ 8553 COMMON_INTERCEPTOR_ENTER(ctx, SHA##LEN##_File, filename, buf); \ 8554 if (filename) \ 8555 COMMON_INTERCEPTOR_READ_RANGE(ctx, filename, REAL(strlen)(filename) + 1);\ 8556 char *ret = REAL(SHA##LEN##_File)(filename, buf); \ 8557 if (ret) \ 8558 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, ret, SHA##LEN##_return_length); \ 8559 return ret; \ 8560 } \ 8561 INTERCEPTOR(char *, SHA##LEN##_FileChunk, const char *filename, char *buf, \ 8562 OFF_T offset, OFF_T length) { \ 8563 void *ctx; \ 8564 COMMON_INTERCEPTOR_ENTER(ctx, SHA##LEN##_FileChunk, filename, buf, offset, \ 8565 length); \ 8566 if (filename) \ 8567 COMMON_INTERCEPTOR_READ_RANGE(ctx, filename, REAL(strlen)(filename) + 1);\ 8568 char *ret = REAL(SHA##LEN##_FileChunk)(filename, buf, offset, length); \ 8569 if (ret) \ 8570 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, ret, SHA##LEN##_return_length); \ 8571 return ret; \ 8572 } \ 8573 INTERCEPTOR(char *, SHA##LEN##_Data, u8 *data, SIZE_T len, char *buf) { \ 8574 void *ctx; \ 8575 COMMON_INTERCEPTOR_ENTER(ctx, SHA##LEN##_Data, data, len, buf); \ 8576 if (data && len > 0) \ 8577 COMMON_INTERCEPTOR_READ_RANGE(ctx, data, len); \ 8578 char *ret = REAL(SHA##LEN##_Data)(data, len, buf); \ 8579 if (ret) \ 8580 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, ret, SHA##LEN##_return_length); \ 8581 return ret; \ 8582 } 8583 8584 SHA2_INTERCEPTORS(224, u32); 8585 SHA2_INTERCEPTORS(256, u32); 8586 SHA2_INTERCEPTORS(384, u64); 8587 SHA2_INTERCEPTORS(512, u64); 8588 8589 #define INIT_SHA2_INTECEPTORS(LEN) \ 8590 COMMON_INTERCEPT_FUNCTION(SHA##LEN##_Init); \ 8591 COMMON_INTERCEPT_FUNCTION(SHA##LEN##_Update); \ 8592 COMMON_INTERCEPT_FUNCTION(SHA##LEN##_Final); \ 8593 COMMON_INTERCEPT_FUNCTION(SHA##LEN##_End); \ 8594 COMMON_INTERCEPT_FUNCTION(SHA##LEN##_File); \ 8595 COMMON_INTERCEPT_FUNCTION(SHA##LEN##_FileChunk); \ 8596 COMMON_INTERCEPT_FUNCTION(SHA##LEN##_Data) 8597 8598 #define INIT_SHA2 \ 8599 INIT_SHA2_INTECEPTORS(224); \ 8600 INIT_SHA2_INTECEPTORS(256); \ 8601 INIT_SHA2_INTECEPTORS(384); \ 8602 INIT_SHA2_INTECEPTORS(512) 8603 #undef SHA2_INTERCEPTORS 8604 #else 8605 #define INIT_SHA2 8606 #endif 8607 8608 #if SANITIZER_INTERCEPT_VIS 8609 INTERCEPTOR(char *, vis, char *dst, int c, int flag, int nextc) { 8610 void *ctx; 8611 COMMON_INTERCEPTOR_ENTER(ctx, vis, dst, c, flag, nextc); 8612 char *end = REAL(vis)(dst, c, flag, nextc); 8613 // dst is NULL terminated and end points to the NULL char 8614 if (dst && end) 8615 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, dst, end - dst + 1); 8616 return end; 8617 } 8618 INTERCEPTOR(char *, nvis, char *dst, SIZE_T dlen, int c, int flag, int nextc) { 8619 void *ctx; 8620 COMMON_INTERCEPTOR_ENTER(ctx, nvis, dst, dlen, c, flag, nextc); 8621 char *end = REAL(nvis)(dst, dlen, c, flag, nextc); 8622 // nvis cannot make sure the dst is NULL terminated 8623 if (dst && end) 8624 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, dst, end - dst + 1); 8625 return end; 8626 } 8627 INTERCEPTOR(int, strvis, char *dst, const char *src, int flag) { 8628 void *ctx; 8629 COMMON_INTERCEPTOR_ENTER(ctx, strvis, dst, src, flag); 8630 if (src) 8631 COMMON_INTERCEPTOR_READ_RANGE(ctx, src, REAL(strlen)(src) + 1); 8632 int len = REAL(strvis)(dst, src, flag); 8633 if (dst) 8634 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, dst, len + 1); 8635 return len; 8636 } 8637 INTERCEPTOR(int, stravis, char **dst, const char *src, int flag) { 8638 void *ctx; 8639 COMMON_INTERCEPTOR_ENTER(ctx, stravis, dst, src, flag); 8640 if (src) 8641 COMMON_INTERCEPTOR_READ_RANGE(ctx, src, REAL(strlen)(src) + 1); 8642 int len = REAL(stravis)(dst, src, flag); 8643 if (dst) { 8644 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, dst, sizeof(char *)); 8645 if (*dst) 8646 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, *dst, len + 1); 8647 } 8648 return len; 8649 } 8650 INTERCEPTOR(int, strnvis, char *dst, SIZE_T dlen, const char *src, int flag) { 8651 void *ctx; 8652 COMMON_INTERCEPTOR_ENTER(ctx, strnvis, dst, dlen, src, flag); 8653 if (src) 8654 COMMON_INTERCEPTOR_READ_RANGE(ctx, src, REAL(strlen)(src) + 1); 8655 int len = REAL(strnvis)(dst, dlen, src, flag); 8656 // The interface will be valid even if there is no space for NULL char 8657 if (dst && len > 0) 8658 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, dst, len + 1); 8659 return len; 8660 } 8661 INTERCEPTOR(int, strvisx, char *dst, const char *src, SIZE_T len, int flag) { 8662 void *ctx; 8663 COMMON_INTERCEPTOR_ENTER(ctx, strvisx, dst, src, len, flag); 8664 if (src) 8665 COMMON_INTERCEPTOR_READ_RANGE(ctx, src, len); 8666 int ret = REAL(strvisx)(dst, src, len, flag); 8667 if (dst) 8668 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, dst, ret + 1); 8669 return ret; 8670 } 8671 INTERCEPTOR(int, strnvisx, char *dst, SIZE_T dlen, const char *src, SIZE_T len, 8672 int flag) { 8673 void *ctx; 8674 COMMON_INTERCEPTOR_ENTER(ctx, strnvisx, dst, dlen, src, len, flag); 8675 if (src) 8676 COMMON_INTERCEPTOR_READ_RANGE(ctx, src, len); 8677 int ret = REAL(strnvisx)(dst, dlen, src, len, flag); 8678 if (dst && ret >= 0) 8679 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, dst, ret + 1); 8680 return ret; 8681 } 8682 INTERCEPTOR(int, strenvisx, char *dst, SIZE_T dlen, const char *src, SIZE_T len, 8683 int flag, int *cerr_ptr) { 8684 void *ctx; 8685 COMMON_INTERCEPTOR_ENTER(ctx, strenvisx, dst, dlen, src, len, flag, cerr_ptr); 8686 if (src) 8687 COMMON_INTERCEPTOR_READ_RANGE(ctx, src, len); 8688 // FIXME: only need to be checked when "flag | VIS_NOLOCALE" doesn't hold 8689 // according to the implementation 8690 if (cerr_ptr) 8691 COMMON_INTERCEPTOR_READ_RANGE(ctx, cerr_ptr, sizeof(int)); 8692 int ret = REAL(strenvisx)(dst, dlen, src, len, flag, cerr_ptr); 8693 if (dst && ret >= 0) 8694 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, dst, ret + 1); 8695 if (cerr_ptr) 8696 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, cerr_ptr, sizeof(int)); 8697 return ret; 8698 } 8699 INTERCEPTOR(char *, svis, char *dst, int c, int flag, int nextc, 8700 const char *extra) { 8701 void *ctx; 8702 COMMON_INTERCEPTOR_ENTER(ctx, svis, dst, c, flag, nextc, extra); 8703 if (extra) 8704 COMMON_INTERCEPTOR_READ_RANGE(ctx, extra, REAL(strlen)(extra) + 1); 8705 char *end = REAL(svis)(dst, c, flag, nextc, extra); 8706 if (dst && end) 8707 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, dst, end - dst + 1); 8708 return end; 8709 } 8710 INTERCEPTOR(char *, snvis, char *dst, SIZE_T dlen, int c, int flag, int nextc, 8711 const char *extra) { 8712 void *ctx; 8713 COMMON_INTERCEPTOR_ENTER(ctx, snvis, dst, dlen, c, flag, nextc, extra); 8714 if (extra) 8715 COMMON_INTERCEPTOR_READ_RANGE(ctx, extra, REAL(strlen)(extra) + 1); 8716 char *end = REAL(snvis)(dst, dlen, c, flag, nextc, extra); 8717 if (dst && end) 8718 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, dst, 8719 Min((SIZE_T)(end - dst + 1), dlen)); 8720 return end; 8721 } 8722 INTERCEPTOR(int, strsvis, char *dst, const char *src, int flag, 8723 const char *extra) { 8724 void *ctx; 8725 COMMON_INTERCEPTOR_ENTER(ctx, strsvis, dst, src, flag, extra); 8726 if (src) 8727 COMMON_INTERCEPTOR_READ_RANGE(ctx, src, REAL(strlen)(src) + 1); 8728 if (extra) 8729 COMMON_INTERCEPTOR_READ_RANGE(ctx, extra, REAL(strlen)(extra) + 1); 8730 int len = REAL(strsvis)(dst, src, flag, extra); 8731 if (dst) 8732 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, dst, len + 1); 8733 return len; 8734 } 8735 INTERCEPTOR(int, strsnvis, char *dst, SIZE_T dlen, const char *src, int flag, 8736 const char *extra) { 8737 void *ctx; 8738 COMMON_INTERCEPTOR_ENTER(ctx, strsnvis, dst, dlen, src, flag, extra); 8739 if (src) 8740 COMMON_INTERCEPTOR_READ_RANGE(ctx, src, REAL(strlen)(src) + 1); 8741 if (extra) 8742 COMMON_INTERCEPTOR_READ_RANGE(ctx, extra, REAL(strlen)(extra) + 1); 8743 int len = REAL(strsnvis)(dst, dlen, src, flag, extra); 8744 // The interface will be valid even if there is no space for NULL char 8745 if (dst && len >= 0) 8746 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, dst, len + 1); 8747 return len; 8748 } 8749 INTERCEPTOR(int, strsvisx, char *dst, const char *src, SIZE_T len, int flag, 8750 const char *extra) { 8751 void *ctx; 8752 COMMON_INTERCEPTOR_ENTER(ctx, strsvisx, dst, src, len, flag, extra); 8753 if (src) 8754 COMMON_INTERCEPTOR_READ_RANGE(ctx, src, len); 8755 if (extra) 8756 COMMON_INTERCEPTOR_READ_RANGE(ctx, extra, REAL(strlen)(extra) + 1); 8757 int ret = REAL(strsvisx)(dst, src, len, flag, extra); 8758 if (dst) 8759 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, dst, ret + 1); 8760 return ret; 8761 } 8762 INTERCEPTOR(int, strsnvisx, char *dst, SIZE_T dlen, const char *src, SIZE_T len, 8763 int flag, const char *extra) { 8764 void *ctx; 8765 COMMON_INTERCEPTOR_ENTER(ctx, strsnvisx, dst, dlen, src, len, flag, extra); 8766 if (src) 8767 COMMON_INTERCEPTOR_READ_RANGE(ctx, src, len); 8768 if (extra) 8769 COMMON_INTERCEPTOR_READ_RANGE(ctx, extra, REAL(strlen)(extra) + 1); 8770 int ret = REAL(strsnvisx)(dst, dlen, src, len, flag, extra); 8771 if (dst && ret >= 0) 8772 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, dst, ret + 1); 8773 return ret; 8774 } 8775 INTERCEPTOR(int, strsenvisx, char *dst, SIZE_T dlen, const char *src, 8776 SIZE_T len, int flag, const char *extra, int *cerr_ptr) { 8777 void *ctx; 8778 COMMON_INTERCEPTOR_ENTER(ctx, strsenvisx, dst, dlen, src, len, flag, extra, 8779 cerr_ptr); 8780 if (src) 8781 COMMON_INTERCEPTOR_READ_RANGE(ctx, src, len); 8782 if (extra) 8783 COMMON_INTERCEPTOR_READ_RANGE(ctx, extra, REAL(strlen)(extra) + 1); 8784 // FIXME: only need to be checked when "flag | VIS_NOLOCALE" doesn't hold 8785 // according to the implementation 8786 if (cerr_ptr) 8787 COMMON_INTERCEPTOR_READ_RANGE(ctx, cerr_ptr, sizeof(int)); 8788 int ret = REAL(strsenvisx)(dst, dlen, src, len, flag, extra, cerr_ptr); 8789 if (dst && ret >= 0) 8790 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, dst, ret + 1); 8791 if (cerr_ptr) 8792 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, cerr_ptr, sizeof(int)); 8793 return ret; 8794 } 8795 INTERCEPTOR(int, unvis, char *cp, int c, int *astate, int flag) { 8796 void *ctx; 8797 COMMON_INTERCEPTOR_ENTER(ctx, unvis, cp, c, astate, flag); 8798 if (astate) 8799 COMMON_INTERCEPTOR_READ_RANGE(ctx, astate, sizeof(*astate)); 8800 int ret = REAL(unvis)(cp, c, astate, flag); 8801 if (ret == unvis_valid || ret == unvis_validpush) { 8802 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, cp, sizeof(*cp)); 8803 } 8804 return ret; 8805 } 8806 INTERCEPTOR(int, strunvis, char *dst, const char *src) { 8807 void *ctx; 8808 COMMON_INTERCEPTOR_ENTER(ctx, strunvis, dst, src); 8809 if (src) 8810 COMMON_INTERCEPTOR_READ_RANGE(ctx, src, REAL(strlen)(src) + 1); 8811 int ret = REAL(strunvis)(dst, src); 8812 if (ret != -1) 8813 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, dst, ret + 1); 8814 return ret; 8815 } 8816 INTERCEPTOR(int, strnunvis, char *dst, SIZE_T dlen, const char *src) { 8817 void *ctx; 8818 COMMON_INTERCEPTOR_ENTER(ctx, strnunvis, dst, dlen, src); 8819 if (src) 8820 COMMON_INTERCEPTOR_READ_RANGE(ctx, src, REAL(strlen)(src) + 1); 8821 int ret = REAL(strnunvis)(dst, dlen, src); 8822 if (ret != -1) 8823 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, dst, ret + 1); 8824 return ret; 8825 } 8826 INTERCEPTOR(int, strunvisx, char *dst, const char *src, int flag) { 8827 void *ctx; 8828 COMMON_INTERCEPTOR_ENTER(ctx, strunvisx, dst, src, flag); 8829 if (src) 8830 COMMON_INTERCEPTOR_READ_RANGE(ctx, src, REAL(strlen)(src) + 1); 8831 int ret = REAL(strunvisx)(dst, src, flag); 8832 if (ret != -1) 8833 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, dst, ret + 1); 8834 return ret; 8835 } 8836 INTERCEPTOR(int, strnunvisx, char *dst, SIZE_T dlen, const char *src, 8837 int flag) { 8838 void *ctx; 8839 COMMON_INTERCEPTOR_ENTER(ctx, strnunvisx, dst, dlen, src, flag); 8840 if (src) 8841 COMMON_INTERCEPTOR_READ_RANGE(ctx, src, REAL(strlen)(src) + 1); 8842 int ret = REAL(strnunvisx)(dst, dlen, src, flag); 8843 if (ret != -1) 8844 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, dst, ret + 1); 8845 return ret; 8846 } 8847 #define INIT_VIS \ 8848 COMMON_INTERCEPT_FUNCTION(vis); \ 8849 COMMON_INTERCEPT_FUNCTION(nvis); \ 8850 COMMON_INTERCEPT_FUNCTION(strvis); \ 8851 COMMON_INTERCEPT_FUNCTION(stravis); \ 8852 COMMON_INTERCEPT_FUNCTION(strnvis); \ 8853 COMMON_INTERCEPT_FUNCTION(strvisx); \ 8854 COMMON_INTERCEPT_FUNCTION(strnvisx); \ 8855 COMMON_INTERCEPT_FUNCTION(strenvisx); \ 8856 COMMON_INTERCEPT_FUNCTION(svis); \ 8857 COMMON_INTERCEPT_FUNCTION(snvis); \ 8858 COMMON_INTERCEPT_FUNCTION(strsvis); \ 8859 COMMON_INTERCEPT_FUNCTION(strsnvis); \ 8860 COMMON_INTERCEPT_FUNCTION(strsvisx); \ 8861 COMMON_INTERCEPT_FUNCTION(strsnvisx); \ 8862 COMMON_INTERCEPT_FUNCTION(strsenvisx); \ 8863 COMMON_INTERCEPT_FUNCTION(unvis); \ 8864 COMMON_INTERCEPT_FUNCTION(strunvis); \ 8865 COMMON_INTERCEPT_FUNCTION(strnunvis); \ 8866 COMMON_INTERCEPT_FUNCTION(strunvisx); \ 8867 COMMON_INTERCEPT_FUNCTION(strnunvisx) 8868 #else 8869 #define INIT_VIS 8870 #endif 8871 8872 #if SANITIZER_INTERCEPT_CDB 8873 INTERCEPTOR(struct __sanitizer_cdbr *, cdbr_open, const char *path, int flags) { 8874 void *ctx; 8875 COMMON_INTERCEPTOR_ENTER(ctx, cdbr_open, path, flags); 8876 if (path) 8877 COMMON_INTERCEPTOR_READ_RANGE(ctx, path, REAL(strlen)(path) + 1); 8878 struct __sanitizer_cdbr *cdbr = REAL(cdbr_open)(path, flags); 8879 if (cdbr) 8880 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, cdbr, sizeof(*cdbr)); 8881 return cdbr; 8882 } 8883 8884 INTERCEPTOR(struct __sanitizer_cdbr *, cdbr_open_mem, void *base, SIZE_T size, 8885 int flags, void (*unmap)(void *, void *, SIZE_T), void *cookie) { 8886 void *ctx; 8887 COMMON_INTERCEPTOR_ENTER(ctx, cdbr_open_mem, base, size, flags, unmap, 8888 cookie); 8889 if (base && size) 8890 COMMON_INTERCEPTOR_READ_RANGE(ctx, base, size); 8891 struct __sanitizer_cdbr *cdbr = 8892 REAL(cdbr_open_mem)(base, size, flags, unmap, cookie); 8893 if (cdbr) 8894 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, cdbr, sizeof(*cdbr)); 8895 return cdbr; 8896 } 8897 8898 INTERCEPTOR(u32, cdbr_entries, struct __sanitizer_cdbr *cdbr) { 8899 void *ctx; 8900 COMMON_INTERCEPTOR_ENTER(ctx, cdbr_entries, cdbr); 8901 if (cdbr) 8902 COMMON_INTERCEPTOR_READ_RANGE(ctx, cdbr, sizeof(*cdbr)); 8903 return REAL(cdbr_entries)(cdbr); 8904 } 8905 8906 INTERCEPTOR(int, cdbr_get, struct __sanitizer_cdbr *cdbr, u32 index, 8907 const void **data, SIZE_T *datalen) { 8908 void *ctx; 8909 COMMON_INTERCEPTOR_ENTER(ctx, cdbr_get, cdbr, index, data, datalen); 8910 if (cdbr) 8911 COMMON_INTERCEPTOR_READ_RANGE(ctx, cdbr, sizeof(*cdbr)); 8912 int ret = REAL(cdbr_get)(cdbr, index, data, datalen); 8913 if (!ret) { 8914 if (data) 8915 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, data, sizeof(*data)); 8916 if (datalen) 8917 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, datalen, sizeof(*datalen)); 8918 if (data && datalen) 8919 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, *data, *datalen); 8920 } 8921 return ret; 8922 } 8923 8924 INTERCEPTOR(int, cdbr_find, struct __sanitizer_cdbr *cdbr, const void *key, 8925 SIZE_T keylen, const void **data, SIZE_T *datalen) { 8926 void *ctx; 8927 COMMON_INTERCEPTOR_ENTER(ctx, cdbr_find, cdbr, key, keylen, data, datalen); 8928 if (cdbr) 8929 COMMON_INTERCEPTOR_READ_RANGE(ctx, cdbr, sizeof(*cdbr)); 8930 if (key) 8931 COMMON_INTERCEPTOR_READ_RANGE(ctx, key, keylen); 8932 int ret = REAL(cdbr_find)(cdbr, key, keylen, data, datalen); 8933 if (!ret) { 8934 if (data) 8935 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, data, sizeof(*data)); 8936 if (datalen) 8937 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, datalen, sizeof(*datalen)); 8938 if (data && datalen) 8939 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, *data, *datalen); 8940 } 8941 return ret; 8942 } 8943 8944 INTERCEPTOR(void, cdbr_close, struct __sanitizer_cdbr *cdbr) { 8945 void *ctx; 8946 COMMON_INTERCEPTOR_ENTER(ctx, cdbr_close, cdbr); 8947 if (cdbr) 8948 COMMON_INTERCEPTOR_READ_RANGE(ctx, cdbr, sizeof(*cdbr)); 8949 REAL(cdbr_close)(cdbr); 8950 } 8951 8952 INTERCEPTOR(struct __sanitizer_cdbw *, cdbw_open) { 8953 void *ctx; 8954 COMMON_INTERCEPTOR_ENTER(ctx, cdbw_open); 8955 struct __sanitizer_cdbw *ret = REAL(cdbw_open)(); 8956 if (ret) 8957 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, ret, sizeof(*ret)); 8958 return ret; 8959 } 8960 8961 INTERCEPTOR(int, cdbw_put, struct __sanitizer_cdbw *cdbw, const void *key, 8962 SIZE_T keylen, const void *data, SIZE_T datalen) { 8963 void *ctx; 8964 COMMON_INTERCEPTOR_ENTER(ctx, cdbw_put, cdbw, key, keylen, data, datalen); 8965 if (cdbw) 8966 COMMON_INTERCEPTOR_READ_RANGE(ctx, cdbw, sizeof(*cdbw)); 8967 if (data && datalen) 8968 COMMON_INTERCEPTOR_READ_RANGE(ctx, data, datalen); 8969 if (key && keylen) 8970 COMMON_INTERCEPTOR_READ_RANGE(ctx, key, keylen); 8971 int ret = REAL(cdbw_put)(cdbw, key, keylen, data, datalen); 8972 if (!ret && cdbw) 8973 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, cdbw, sizeof(*cdbw)); 8974 return ret; 8975 } 8976 8977 INTERCEPTOR(int, cdbw_put_data, struct __sanitizer_cdbw *cdbw, const void *data, 8978 SIZE_T datalen, u32 *index) { 8979 void *ctx; 8980 COMMON_INTERCEPTOR_ENTER(ctx, cdbw_put_data, cdbw, data, datalen, index); 8981 if (cdbw) 8982 COMMON_INTERCEPTOR_READ_RANGE(ctx, cdbw, sizeof(*cdbw)); 8983 if (data && datalen) 8984 COMMON_INTERCEPTOR_READ_RANGE(ctx, data, datalen); 8985 int ret = REAL(cdbw_put_data)(cdbw, data, datalen, index); 8986 if (!ret) { 8987 if (index) 8988 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, index, sizeof(*index)); 8989 if (cdbw) 8990 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, cdbw, sizeof(*cdbw)); 8991 } 8992 return ret; 8993 } 8994 8995 INTERCEPTOR(int, cdbw_put_key, struct __sanitizer_cdbw *cdbw, const void *key, 8996 SIZE_T keylen, u32 index) { 8997 void *ctx; 8998 COMMON_INTERCEPTOR_ENTER(ctx, cdbw_put_key, cdbw, key, keylen, index); 8999 if (cdbw) 9000 COMMON_INTERCEPTOR_READ_RANGE(ctx, cdbw, sizeof(*cdbw)); 9001 if (key && keylen) 9002 COMMON_INTERCEPTOR_READ_RANGE(ctx, key, keylen); 9003 int ret = REAL(cdbw_put_key)(cdbw, key, keylen, index); 9004 if (!ret && cdbw) 9005 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, cdbw, sizeof(*cdbw)); 9006 return ret; 9007 } 9008 9009 INTERCEPTOR(int, cdbw_output, struct __sanitizer_cdbw *cdbw, int output, 9010 const char descr[16], u32 (*seedgen)(void)) { 9011 void *ctx; 9012 COMMON_INTERCEPTOR_ENTER(ctx, cdbw_output, cdbw, output, descr, seedgen); 9013 COMMON_INTERCEPTOR_FD_ACCESS(ctx, output); 9014 if (cdbw) 9015 COMMON_INTERCEPTOR_READ_RANGE(ctx, cdbw, sizeof(*cdbw)); 9016 if (descr) 9017 COMMON_INTERCEPTOR_READ_RANGE(ctx, descr, internal_strnlen(descr, 16)); 9018 if (seedgen) 9019 COMMON_INTERCEPTOR_READ_RANGE(ctx, (void *)seedgen, sizeof(seedgen)); 9020 int ret = REAL(cdbw_output)(cdbw, output, descr, seedgen); 9021 if (!ret) { 9022 if (cdbw) 9023 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, cdbw, sizeof(*cdbw)); 9024 if (output >= 0) 9025 COMMON_INTERCEPTOR_FD_ACQUIRE(ctx, output); 9026 } 9027 return ret; 9028 } 9029 9030 INTERCEPTOR(void, cdbw_close, struct __sanitizer_cdbw *cdbw) { 9031 void *ctx; 9032 COMMON_INTERCEPTOR_ENTER(ctx, cdbw_close, cdbw); 9033 if (cdbw) 9034 COMMON_INTERCEPTOR_READ_RANGE(ctx, cdbw, sizeof(*cdbw)); 9035 REAL(cdbw_close)(cdbw); 9036 } 9037 9038 #define INIT_CDB \ 9039 COMMON_INTERCEPT_FUNCTION(cdbr_open); \ 9040 COMMON_INTERCEPT_FUNCTION(cdbr_open_mem); \ 9041 COMMON_INTERCEPT_FUNCTION(cdbr_entries); \ 9042 COMMON_INTERCEPT_FUNCTION(cdbr_get); \ 9043 COMMON_INTERCEPT_FUNCTION(cdbr_find); \ 9044 COMMON_INTERCEPT_FUNCTION(cdbr_close); \ 9045 COMMON_INTERCEPT_FUNCTION(cdbw_open); \ 9046 COMMON_INTERCEPT_FUNCTION(cdbw_put); \ 9047 COMMON_INTERCEPT_FUNCTION(cdbw_put_data); \ 9048 COMMON_INTERCEPT_FUNCTION(cdbw_put_key); \ 9049 COMMON_INTERCEPT_FUNCTION(cdbw_output); \ 9050 COMMON_INTERCEPT_FUNCTION(cdbw_close) 9051 #else 9052 #define INIT_CDB 9053 #endif 9054 9055 #if SANITIZER_INTERCEPT_GETFSENT 9056 INTERCEPTOR(void *, getfsent) { 9057 void *ctx; 9058 COMMON_INTERCEPTOR_ENTER(ctx, getfsent); 9059 void *ret = REAL(getfsent)(); 9060 if (ret) 9061 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, ret, struct_fstab_sz); 9062 return ret; 9063 } 9064 9065 INTERCEPTOR(void *, getfsspec, const char *spec) { 9066 void *ctx; 9067 COMMON_INTERCEPTOR_ENTER(ctx, getfsspec, spec); 9068 if (spec) 9069 COMMON_INTERCEPTOR_READ_RANGE(ctx, spec, REAL(strlen)(spec) + 1); 9070 void *ret = REAL(getfsspec)(spec); 9071 if (ret) 9072 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, ret, struct_fstab_sz); 9073 return ret; 9074 } 9075 9076 INTERCEPTOR(void *, getfsfile, const char *file) { 9077 void *ctx; 9078 COMMON_INTERCEPTOR_ENTER(ctx, getfsfile, file); 9079 if (file) 9080 COMMON_INTERCEPTOR_READ_RANGE(ctx, file, REAL(strlen)(file) + 1); 9081 void *ret = REAL(getfsfile)(file); 9082 if (ret) 9083 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, ret, struct_fstab_sz); 9084 return ret; 9085 } 9086 9087 #define INIT_GETFSENT \ 9088 COMMON_INTERCEPT_FUNCTION(getfsent); \ 9089 COMMON_INTERCEPT_FUNCTION(getfsspec); \ 9090 COMMON_INTERCEPT_FUNCTION(getfsfile); 9091 #else 9092 #define INIT_GETFSENT 9093 #endif 9094 9095 #if SANITIZER_INTERCEPT_ARC4RANDOM 9096 INTERCEPTOR(void, arc4random_buf, void *buf, SIZE_T len) { 9097 void *ctx; 9098 COMMON_INTERCEPTOR_ENTER(ctx, arc4random_buf, buf, len); 9099 REAL(arc4random_buf)(buf, len); 9100 if (buf && len) 9101 COMMON_INTERCEPTOR_WRITE_RANGE(ctx, buf, len); 9102 } 9103 9104 INTERCEPTOR(void, arc4random_addrandom, u8 *dat, int datlen) { 9105 void *ctx; 9106 COMMON_INTERCEPTOR_ENTER(ctx, arc4random_addrandom, dat, datlen); 9107 if (dat && datlen) 9108 COMMON_INTERCEPTOR_READ_RANGE(ctx, dat, datlen); 9109 REAL(arc4random_addrandom)(dat, datlen); 9110 } 9111 9112 #define INIT_ARC4RANDOM \ 9113 COMMON_INTERCEPT_FUNCTION(arc4random_buf); \ 9114 COMMON_INTERCEPT_FUNCTION(arc4random_addrandom); 9115 #else 9116 #define INIT_ARC4RANDOM 9117 #endif 9118 9119 #if SANITIZER_INTERCEPT_POPEN 9120 INTERCEPTOR(__sanitizer_FILE *, popen, const char *command, const char *type) { 9121 void *ctx; 9122 COMMON_INTERCEPTOR_ENTER(ctx, popen, command, type); 9123 if (command) 9124 COMMON_INTERCEPTOR_READ_RANGE(ctx, command, REAL(strlen)(command) + 1); 9125 if (type) 9126 COMMON_INTERCEPTOR_READ_RANGE(ctx, type, REAL(strlen)(type) + 1); 9127 __sanitizer_FILE *res = REAL(popen)(command, type); 9128 COMMON_INTERCEPTOR_FILE_OPEN(ctx, res, nullptr); 9129 if (res) unpoison_file(res); 9130 return res; 9131 } 9132 #define INIT_POPEN COMMON_INTERCEPT_FUNCTION(popen) 9133 #else 9134 #define INIT_POPEN 9135 #endif 9136 9137 #if SANITIZER_INTERCEPT_POPENVE 9138 INTERCEPTOR(__sanitizer_FILE *, popenve, const char *path, 9139 char *const *argv, char *const *envp, const char *type) { 9140 void *ctx; 9141 COMMON_INTERCEPTOR_ENTER(ctx, popenve, path, argv, envp, type); 9142 if (path) 9143 COMMON_INTERCEPTOR_READ_RANGE(ctx, path, REAL(strlen)(path) + 1); 9144 if (argv) { 9145 for (char *const *pa = argv; ; ++pa) { 9146 COMMON_INTERCEPTOR_READ_RANGE(ctx, pa, sizeof(char **)); 9147 if (!*pa) 9148 break; 9149 COMMON_INTERCEPTOR_READ_RANGE(ctx, *pa, REAL(strlen)(*pa) + 1); 9150 } 9151 } 9152 if (envp) { 9153 for (char *const *pa = envp; ; ++pa) { 9154 COMMON_INTERCEPTOR_READ_RANGE(ctx, pa, sizeof(char **)); 9155 if (!*pa) 9156 break; 9157 COMMON_INTERCEPTOR_READ_RANGE(ctx, *pa, REAL(strlen)(*pa) + 1); 9158 } 9159 } 9160 if (type) 9161 COMMON_INTERCEPTOR_READ_RANGE(ctx, type, REAL(strlen)(type) + 1); 9162 __sanitizer_FILE *res = REAL(popenve)(path, argv, envp, type); 9163 COMMON_INTERCEPTOR_FILE_OPEN(ctx, res, nullptr); 9164 if (res) unpoison_file(res); 9165 return res; 9166 } 9167 #define INIT_POPENVE COMMON_INTERCEPT_FUNCTION(popenve) 9168 #else 9169 #define INIT_POPENVE 9170 #endif 9171 9172 #if SANITIZER_INTERCEPT_PCLOSE 9173 INTERCEPTOR(int, pclose, __sanitizer_FILE *fp) { 9174 void *ctx; 9175 COMMON_INTERCEPTOR_ENTER(ctx, pclose, fp); 9176 COMMON_INTERCEPTOR_FILE_CLOSE(ctx, fp); 9177 const FileMetadata *m = GetInterceptorMetadata(fp); 9178 int res = REAL(pclose)(fp); 9179 if (m) { 9180 COMMON_INTERCEPTOR_INITIALIZE_RANGE(*m->addr, *m->size); 9181 DeleteInterceptorMetadata(fp); 9182 } 9183 return res; 9184 } 9185 #define INIT_PCLOSE COMMON_INTERCEPT_FUNCTION(pclose); 9186 #else 9187 #define INIT_PCLOSE 9188 #endif 9189 9190 #if SANITIZER_INTERCEPT_FUNOPEN 9191 typedef int (*funopen_readfn)(void *cookie, char *buf, int len); 9192 typedef int (*funopen_writefn)(void *cookie, const char *buf, int len); 9193 typedef OFF_T (*funopen_seekfn)(void *cookie, OFF_T offset, int whence); 9194 typedef int (*funopen_closefn)(void *cookie); 9195 9196 struct WrappedFunopenCookie { 9197 void *real_cookie; 9198 funopen_readfn real_read; 9199 funopen_writefn real_write; 9200 funopen_seekfn real_seek; 9201 funopen_closefn real_close; 9202 }; 9203 9204 static int wrapped_funopen_read(void *cookie, char *buf, int len) { 9205 COMMON_INTERCEPTOR_UNPOISON_PARAM(3); 9206 WrappedFunopenCookie *wrapped_cookie = (WrappedFunopenCookie *)cookie; 9207 funopen_readfn real_read = wrapped_cookie->real_read; 9208 return real_read(wrapped_cookie->real_cookie, buf, len); 9209 } 9210 9211 static int wrapped_funopen_write(void *cookie, const char *buf, int len) { 9212 COMMON_INTERCEPTOR_UNPOISON_PARAM(3); 9213 WrappedFunopenCookie *wrapped_cookie = (WrappedFunopenCookie *)cookie; 9214 funopen_writefn real_write = wrapped_cookie->real_write; 9215 return real_write(wrapped_cookie->real_cookie, buf, len); 9216 } 9217 9218 static OFF_T wrapped_funopen_seek(void *cookie, OFF_T offset, int whence) { 9219 COMMON_INTERCEPTOR_UNPOISON_PARAM(3); 9220 WrappedFunopenCookie *wrapped_cookie = (WrappedFunopenCookie *)cookie; 9221 funopen_seekfn real_seek = wrapped_cookie->real_seek; 9222 return real_seek(wrapped_cookie->real_cookie, offset, whence); 9223 } 9224 9225 static int wrapped_funopen_close(void *cookie) { 9226 COMMON_INTERCEPTOR_UNPOISON_PARAM(1); 9227 WrappedFunopenCookie *wrapped_cookie = (WrappedFunopenCookie *)cookie; 9228 funopen_closefn real_close = wrapped_cookie->real_close; 9229 int res = real_close(wrapped_cookie->real_cookie); 9230 InternalFree(wrapped_cookie); 9231 return res; 9232 } 9233 9234 INTERCEPTOR(__sanitizer_FILE *, funopen, void *cookie, funopen_readfn readfn, 9235 funopen_writefn writefn, funopen_seekfn seekfn, 9236 funopen_closefn closefn) { 9237 void *ctx; 9238 COMMON_INTERCEPTOR_ENTER(ctx, funopen, cookie, readfn, writefn, seekfn, 9239 closefn); 9240 9241 WrappedFunopenCookie *wrapped_cookie = 9242 (WrappedFunopenCookie *)InternalAlloc(sizeof(WrappedFunopenCookie)); 9243 wrapped_cookie->real_cookie = cookie; 9244 wrapped_cookie->real_read = readfn; 9245 wrapped_cookie->real_write = writefn; 9246 wrapped_cookie->real_seek = seekfn; 9247 wrapped_cookie->real_close = closefn; 9248 9249 __sanitizer_FILE *res = 9250 REAL(funopen)(wrapped_cookie, 9251 readfn ? wrapped_funopen_read : nullptr, 9252 writefn ? wrapped_funopen_write : nullptr, 9253 seekfn ? wrapped_funopen_seek : nullptr, 9254 closefn ? wrapped_funopen_close : nullptr); 9255 if (res) 9256 unpoison_file(res); 9257 return res; 9258 } 9259 #define INIT_FUNOPEN COMMON_INTERCEPT_FUNCTION(funopen) 9260 #else 9261 #define INIT_FUNOPEN 9262 #endif 9263 9264 #if SANITIZER_INTERCEPT_FUNOPEN2 9265 typedef SSIZE_T (*funopen2_readfn)(void *cookie, void *buf, SIZE_T len); 9266 typedef SSIZE_T (*funopen2_writefn)(void *cookie, const void *buf, SIZE_T len); 9267 typedef OFF_T (*funopen2_seekfn)(void *cookie, OFF_T offset, int whence); 9268 typedef int (*funopen2_flushfn)(void *cookie); 9269 typedef int (*funopen2_closefn)(void *cookie); 9270 9271 struct WrappedFunopen2Cookie { 9272 void *real_cookie; 9273 funopen2_readfn real_read; 9274 funopen2_writefn real_write; 9275 funopen2_seekfn real_seek; 9276 funopen2_flushfn real_flush; 9277 funopen2_closefn real_close; 9278 }; 9279 9280 static SSIZE_T wrapped_funopen2_read(void *cookie, void *buf, SIZE_T len) { 9281 COMMON_INTERCEPTOR_UNPOISON_PARAM(3); 9282 WrappedFunopen2Cookie *wrapped_cookie = (WrappedFunopen2Cookie *)cookie; 9283 funopen2_readfn real_read = wrapped_cookie->real_read; 9284 return real_read(wrapped_cookie->real_cookie, buf, len); 9285 } 9286 9287 static SSIZE_T wrapped_funopen2_write(void *cookie, const void *buf, 9288 SIZE_T len) { 9289 COMMON_INTERCEPTOR_UNPOISON_PARAM(3); 9290 WrappedFunopen2Cookie *wrapped_cookie = (WrappedFunopen2Cookie *)cookie; 9291 funopen2_writefn real_write = wrapped_cookie->real_write; 9292 return real_write(wrapped_cookie->real_cookie, buf, len); 9293 } 9294 9295 static OFF_T wrapped_funopen2_seek(void *cookie, OFF_T offset, int whence) { 9296 COMMON_INTERCEPTOR_UNPOISON_PARAM(3); 9297 WrappedFunopen2Cookie *wrapped_cookie = (WrappedFunopen2Cookie *)cookie; 9298 funopen2_seekfn real_seek = wrapped_cookie->real_seek; 9299 return real_seek(wrapped_cookie->real_cookie, offset, whence); 9300 } 9301 9302 static int wrapped_funopen2_flush(void *cookie) { 9303 COMMON_INTERCEPTOR_UNPOISON_PARAM(1); 9304 WrappedFunopen2Cookie *wrapped_cookie = (WrappedFunopen2Cookie *)cookie; 9305 funopen2_flushfn real_flush = wrapped_cookie->real_flush; 9306 return real_flush(wrapped_cookie->real_cookie); 9307 } 9308 9309 static int wrapped_funopen2_close(void *cookie) { 9310 COMMON_INTERCEPTOR_UNPOISON_PARAM(1); 9311 WrappedFunopen2Cookie *wrapped_cookie = (WrappedFunopen2Cookie *)cookie; 9312 funopen2_closefn real_close = wrapped_cookie->real_close; 9313 int res = real_close(wrapped_cookie->real_cookie); 9314 InternalFree(wrapped_cookie); 9315 return res; 9316 } 9317 9318 INTERCEPTOR(__sanitizer_FILE *, funopen2, void *cookie, funopen2_readfn readfn, 9319 funopen2_writefn writefn, funopen2_seekfn seekfn, 9320 funopen2_flushfn flushfn, funopen2_closefn closefn) { 9321 void *ctx; 9322 COMMON_INTERCEPTOR_ENTER(ctx, funopen2, cookie, readfn, writefn, seekfn, 9323 flushfn, closefn); 9324 9325 WrappedFunopen2Cookie *wrapped_cookie = 9326 (WrappedFunopen2Cookie *)InternalAlloc(sizeof(WrappedFunopen2Cookie)); 9327 wrapped_cookie->real_cookie = cookie; 9328 wrapped_cookie->real_read = readfn; 9329 wrapped_cookie->real_write = writefn; 9330 wrapped_cookie->real_seek = seekfn; 9331 wrapped_cookie->real_flush = flushfn; 9332 wrapped_cookie->real_close = closefn; 9333 9334 __sanitizer_FILE *res = 9335 REAL(funopen2)(wrapped_cookie, 9336 readfn ? wrapped_funopen2_read : nullptr, 9337 writefn ? wrapped_funopen2_write : nullptr, 9338 seekfn ? wrapped_funopen2_seek : nullptr, 9339 flushfn ? wrapped_funopen2_flush : nullptr, 9340 closefn ? wrapped_funopen2_close : nullptr); 9341 if (res) 9342 unpoison_file(res); 9343 return res; 9344 } 9345 #define INIT_FUNOPEN2 COMMON_INTERCEPT_FUNCTION(funopen2) 9346 #else 9347 #define INIT_FUNOPEN2 9348 #endif 9349 9350 static void InitializeCommonInterceptors() { 9351 static u64 metadata_mem[sizeof(MetadataHashMap) / sizeof(u64) + 1]; 9352 interceptor_metadata_map = 9353 new ((void *)&metadata_mem) MetadataHashMap(); // NOLINT 9354 9355 INIT_MMAP; 9356 INIT_MMAP64; 9357 INIT_TEXTDOMAIN; 9358 INIT_STRLEN; 9359 INIT_STRNLEN; 9360 INIT_STRNDUP; 9361 INIT___STRNDUP; 9362 INIT_STRCMP; 9363 INIT_STRNCMP; 9364 INIT_STRCASECMP; 9365 INIT_STRNCASECMP; 9366 INIT_STRSTR; 9367 INIT_STRCASESTR; 9368 INIT_STRCHR; 9369 INIT_STRCHRNUL; 9370 INIT_STRRCHR; 9371 INIT_STRSPN; 9372 INIT_STRTOK; 9373 INIT_STRPBRK; 9374 INIT_STRXFRM; 9375 INIT___STRXFRM_L; 9376 INIT_MEMSET; 9377 INIT_MEMMOVE; 9378 INIT_MEMCPY; 9379 INIT_MEMCHR; 9380 INIT_MEMCMP; 9381 INIT_MEMRCHR; 9382 INIT_MEMMEM; 9383 INIT_READ; 9384 INIT_FREAD; 9385 INIT_PREAD; 9386 INIT_PREAD64; 9387 INIT_READV; 9388 INIT_PREADV; 9389 INIT_PREADV64; 9390 INIT_WRITE; 9391 INIT_FWRITE; 9392 INIT_PWRITE; 9393 INIT_PWRITE64; 9394 INIT_WRITEV; 9395 INIT_PWRITEV; 9396 INIT_PWRITEV64; 9397 INIT_FGETS; 9398 INIT_FPUTS; 9399 INIT_PUTS; 9400 INIT_PRCTL; 9401 INIT_LOCALTIME_AND_FRIENDS; 9402 INIT_STRPTIME; 9403 INIT_SCANF; 9404 INIT_ISOC99_SCANF; 9405 INIT_PRINTF; 9406 INIT_PRINTF_L; 9407 INIT_ISOC99_PRINTF; 9408 INIT_FREXP; 9409 INIT_FREXPF_FREXPL; 9410 INIT_GETPWNAM_AND_FRIENDS; 9411 INIT_GETPWNAM_R_AND_FRIENDS; 9412 INIT_GETPWENT; 9413 INIT_FGETPWENT; 9414 INIT_GETPWENT_R; 9415 INIT_FGETPWENT_R; 9416 INIT_FGETGRENT_R; 9417 INIT_SETPWENT; 9418 INIT_CLOCK_GETTIME; 9419 INIT_GETITIMER; 9420 INIT_TIME; 9421 INIT_GLOB; 9422 INIT_GLOB64; 9423 INIT_WAIT; 9424 INIT_WAIT4; 9425 INIT_INET; 9426 INIT_PTHREAD_GETSCHEDPARAM; 9427 INIT_GETADDRINFO; 9428 INIT_GETNAMEINFO; 9429 INIT_GETSOCKNAME; 9430 INIT_GETHOSTBYNAME; 9431 INIT_GETHOSTBYNAME2; 9432 INIT_GETHOSTBYNAME_R; 9433 INIT_GETHOSTBYNAME2_R; 9434 INIT_GETHOSTBYADDR_R; 9435 INIT_GETHOSTENT_R; 9436 INIT_GETSOCKOPT; 9437 INIT_ACCEPT; 9438 INIT_ACCEPT4; 9439 INIT_PACCEPT; 9440 INIT_MODF; 9441 INIT_RECVMSG; 9442 INIT_SENDMSG; 9443 INIT_RECVMMSG; 9444 INIT_SENDMMSG; 9445 INIT_GETPEERNAME; 9446 INIT_IOCTL; 9447 INIT_INET_ATON; 9448 INIT_SYSINFO; 9449 INIT_READDIR; 9450 INIT_READDIR64; 9451 INIT_PTRACE; 9452 INIT_SETLOCALE; 9453 INIT_GETCWD; 9454 INIT_GET_CURRENT_DIR_NAME; 9455 INIT_STRTOIMAX; 9456 INIT_MBSTOWCS; 9457 INIT_MBSNRTOWCS; 9458 INIT_WCSTOMBS; 9459 INIT_WCSNRTOMBS; 9460 INIT_WCRTOMB; 9461 INIT_TCGETATTR; 9462 INIT_REALPATH; 9463 INIT_CANONICALIZE_FILE_NAME; 9464 INIT_CONFSTR; 9465 INIT_SCHED_GETAFFINITY; 9466 INIT_SCHED_GETPARAM; 9467 INIT_STRERROR; 9468 INIT_STRERROR_R; 9469 INIT_XPG_STRERROR_R; 9470 INIT_SCANDIR; 9471 INIT_SCANDIR64; 9472 INIT_GETGROUPS; 9473 INIT_POLL; 9474 INIT_PPOLL; 9475 INIT_WORDEXP; 9476 INIT_SIGWAIT; 9477 INIT_SIGWAITINFO; 9478 INIT_SIGTIMEDWAIT; 9479 INIT_SIGSETOPS; 9480 INIT_SIGPENDING; 9481 INIT_SIGPROCMASK; 9482 INIT_BACKTRACE; 9483 INIT__EXIT; 9484 INIT_PTHREAD_MUTEX_LOCK; 9485 INIT_PTHREAD_MUTEX_UNLOCK; 9486 INIT___PTHREAD_MUTEX_LOCK; 9487 INIT___PTHREAD_MUTEX_UNLOCK; 9488 INIT___LIBC_MUTEX_LOCK; 9489 INIT___LIBC_MUTEX_UNLOCK; 9490 INIT___LIBC_THR_SETCANCELSTATE; 9491 INIT_GETMNTENT; 9492 INIT_GETMNTENT_R; 9493 INIT_STATFS; 9494 INIT_STATFS64; 9495 INIT_STATVFS; 9496 INIT_STATVFS64; 9497 INIT_INITGROUPS; 9498 INIT_ETHER_NTOA_ATON; 9499 INIT_ETHER_HOST; 9500 INIT_ETHER_R; 9501 INIT_SHMCTL; 9502 INIT_RANDOM_R; 9503 INIT_PTHREAD_ATTR_GET; 9504 INIT_PTHREAD_ATTR_GET_SCHED; 9505 INIT_PTHREAD_ATTR_GETINHERITSCHED; 9506 INIT_PTHREAD_ATTR_GETAFFINITY_NP; 9507 INIT_PTHREAD_MUTEXATTR_GETPSHARED; 9508 INIT_PTHREAD_MUTEXATTR_GETTYPE; 9509 INIT_PTHREAD_MUTEXATTR_GETPROTOCOL; 9510 INIT_PTHREAD_MUTEXATTR_GETPRIOCEILING; 9511 INIT_PTHREAD_MUTEXATTR_GETROBUST; 9512 INIT_PTHREAD_MUTEXATTR_GETROBUST_NP; 9513 INIT_PTHREAD_RWLOCKATTR_GETPSHARED; 9514 INIT_PTHREAD_RWLOCKATTR_GETKIND_NP; 9515 INIT_PTHREAD_CONDATTR_GETPSHARED; 9516 INIT_PTHREAD_CONDATTR_GETCLOCK; 9517 INIT_PTHREAD_BARRIERATTR_GETPSHARED; 9518 INIT_TMPNAM; 9519 INIT_TMPNAM_R; 9520 INIT_TTYNAME_R; 9521 INIT_TEMPNAM; 9522 INIT_PTHREAD_SETNAME_NP; 9523 INIT_PTHREAD_GETNAME_NP; 9524 INIT_SINCOS; 9525 INIT_REMQUO; 9526 INIT_REMQUOL; 9527 INIT_LGAMMA; 9528 INIT_LGAMMAL; 9529 INIT_LGAMMA_R; 9530 INIT_LGAMMAL_R; 9531 INIT_DRAND48_R; 9532 INIT_RAND_R; 9533 INIT_GETLINE; 9534 INIT_ICONV; 9535 INIT_TIMES; 9536 INIT_TLS_GET_ADDR; 9537 INIT_LISTXATTR; 9538 INIT_GETXATTR; 9539 INIT_GETRESID; 9540 INIT_GETIFADDRS; 9541 INIT_IF_INDEXTONAME; 9542 INIT_CAPGET; 9543 INIT_AEABI_MEM; 9544 INIT___BZERO; 9545 INIT_FTIME; 9546 INIT_XDR; 9547 INIT_TSEARCH; 9548 INIT_LIBIO_INTERNALS; 9549 INIT_FOPEN; 9550 INIT_FOPEN64; 9551 INIT_OPEN_MEMSTREAM; 9552 INIT_OBSTACK; 9553 INIT_FFLUSH; 9554 INIT_FCLOSE; 9555 INIT_DLOPEN_DLCLOSE; 9556 INIT_GETPASS; 9557 INIT_TIMERFD; 9558 INIT_MLOCKX; 9559 INIT_FOPENCOOKIE; 9560 INIT_SEM; 9561 INIT_PTHREAD_SETCANCEL; 9562 INIT_MINCORE; 9563 INIT_PROCESS_VM_READV; 9564 INIT_CTERMID; 9565 INIT_CTERMID_R; 9566 INIT_RECV_RECVFROM; 9567 INIT_SEND_SENDTO; 9568 INIT_STAT; 9569 INIT_EVENTFD_READ_WRITE; 9570 INIT_LSTAT; 9571 INIT___XSTAT; 9572 INIT___XSTAT64; 9573 INIT___LXSTAT; 9574 INIT___LXSTAT64; 9575 // FIXME: add other *stat interceptors. 9576 INIT_UTMP; 9577 INIT_UTMPX; 9578 INIT_GETLOADAVG; 9579 INIT_WCSLEN; 9580 INIT_WCSCAT; 9581 INIT_WCSXFRM; 9582 INIT___WCSXFRM_L; 9583 INIT_ACCT; 9584 INIT_USER_FROM_UID; 9585 INIT_UID_FROM_USER; 9586 INIT_GROUP_FROM_GID; 9587 INIT_GID_FROM_GROUP; 9588 INIT_ACCESS; 9589 INIT_FACCESSAT; 9590 INIT_GETGROUPLIST; 9591 INIT_GETGROUPMEMBERSHIP; 9592 INIT_READLINK; 9593 INIT_READLINKAT; 9594 INIT_NAME_TO_HANDLE_AT; 9595 INIT_OPEN_BY_HANDLE_AT; 9596 INIT_STRLCPY; 9597 INIT_DEVNAME; 9598 INIT_DEVNAME_R; 9599 INIT_FGETLN; 9600 INIT_STRMODE; 9601 INIT_TTYENT; 9602 INIT_PROTOENT; 9603 INIT_NETENT; 9604 INIT_GETMNTINFO; 9605 INIT_MI_VECTOR_HASH; 9606 INIT_SETVBUF; 9607 INIT_GETVFSSTAT; 9608 INIT_REGEX; 9609 INIT_REGEXSUB; 9610 INIT_FTS; 9611 INIT_SYSCTL; 9612 INIT_ASYSCTL; 9613 INIT_SYSCTLGETMIBINFO; 9614 INIT_NL_LANGINFO; 9615 INIT_MODCTL; 9616 INIT_STRTONUM; 9617 INIT_FPARSELN; 9618 INIT_STATVFS1; 9619 INIT_STRTOI; 9620 INIT_CAPSICUM; 9621 INIT_SHA1; 9622 INIT_MD4; 9623 INIT_RMD160; 9624 INIT_MD5; 9625 INIT_FSEEK; 9626 INIT_MD2; 9627 INIT_SHA2; 9628 INIT_VIS; 9629 INIT_CDB; 9630 INIT_GETFSENT; 9631 INIT_ARC4RANDOM; 9632 INIT_POPEN; 9633 INIT_POPENVE; 9634 INIT_PCLOSE; 9635 INIT_FUNOPEN; 9636 INIT_FUNOPEN2; 9637 9638 INIT___PRINTF_CHK; 9639 } 9640
Indexes created Mon Oct 20 20:10:13 GMT 2025