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1a4d82fc JJ |
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, | |
5bcae85e | 14 | // which has to define its own macros: |
1a4d82fc | 15 | // COMMON_INTERCEPTOR_ENTER |
92a42be0 | 16 | // COMMON_INTERCEPTOR_ENTER_NOIGNORE |
1a4d82fc JJ |
17 | // COMMON_INTERCEPTOR_READ_RANGE |
18 | // COMMON_INTERCEPTOR_WRITE_RANGE | |
19 | // COMMON_INTERCEPTOR_INITIALIZE_RANGE | |
92a42be0 | 20 | // COMMON_INTERCEPTOR_DIR_ACQUIRE |
1a4d82fc JJ |
21 | // COMMON_INTERCEPTOR_FD_ACQUIRE |
22 | // COMMON_INTERCEPTOR_FD_RELEASE | |
23 | // COMMON_INTERCEPTOR_FD_ACCESS | |
24 | // COMMON_INTERCEPTOR_SET_THREAD_NAME | |
92a42be0 | 25 | // COMMON_INTERCEPTOR_ON_DLOPEN |
1a4d82fc JJ |
26 | // COMMON_INTERCEPTOR_ON_EXIT |
27 | // COMMON_INTERCEPTOR_MUTEX_LOCK | |
28 | // COMMON_INTERCEPTOR_MUTEX_UNLOCK | |
29 | // COMMON_INTERCEPTOR_MUTEX_REPAIR | |
30 | // COMMON_INTERCEPTOR_SET_PTHREAD_NAME | |
31 | // COMMON_INTERCEPTOR_HANDLE_RECVMSG | |
92a42be0 | 32 | // COMMON_INTERCEPTOR_NOTHING_IS_INITIALIZED |
1a4d82fc | 33 | //===----------------------------------------------------------------------===// |
92a42be0 | 34 | |
1a4d82fc | 35 | #include "interception/interception.h" |
92a42be0 SL |
36 | #include "sanitizer_addrhashmap.h" |
37 | #include "sanitizer_placement_new.h" | |
1a4d82fc JJ |
38 | #include "sanitizer_platform_interceptors.h" |
39 | #include "sanitizer_tls_get_addr.h" | |
40 | ||
41 | #include <stdarg.h> | |
42 | ||
92a42be0 SL |
43 | #if SANITIZER_INTERCEPTOR_HOOKS |
44 | #define CALL_WEAK_INTERCEPTOR_HOOK(f, ...) \ | |
45 | do { \ | |
46 | if (f) \ | |
47 | f(__VA_ARGS__); \ | |
48 | } while (false); | |
49 | #define DECLARE_WEAK_INTERCEPTOR_HOOK(f, ...) \ | |
50 | extern "C" { \ | |
51 | SANITIZER_INTERFACE_ATTRIBUTE SANITIZER_WEAK_ATTRIBUTE void f(__VA_ARGS__); \ | |
52 | } // extern "C" | |
53 | #else | |
54 | #define DECLARE_WEAK_INTERCEPTOR_HOOK(f, ...) | |
55 | #define CALL_WEAK_INTERCEPTOR_HOOK(f, ...) | |
56 | ||
57 | #endif // SANITIZER_INTERCEPTOR_HOOKS | |
58 | ||
1a4d82fc JJ |
59 | #if SANITIZER_WINDOWS && !defined(va_copy) |
60 | #define va_copy(dst, src) ((dst) = (src)) | |
61 | #endif // _WIN32 | |
62 | ||
92a42be0 SL |
63 | #if SANITIZER_FREEBSD |
64 | #define pthread_setname_np pthread_set_name_np | |
65 | #define inet_aton __inet_aton | |
66 | #define inet_pton __inet_pton | |
67 | #define iconv __bsd_iconv | |
68 | #endif | |
69 | ||
1a4d82fc JJ |
70 | #ifndef COMMON_INTERCEPTOR_INITIALIZE_RANGE |
71 | #define COMMON_INTERCEPTOR_INITIALIZE_RANGE(p, size) {} | |
72 | #endif | |
73 | ||
74 | #ifndef COMMON_INTERCEPTOR_UNPOISON_PARAM | |
75 | #define COMMON_INTERCEPTOR_UNPOISON_PARAM(count) {} | |
76 | #endif | |
77 | ||
78 | #ifndef COMMON_INTERCEPTOR_FD_ACCESS | |
79 | #define COMMON_INTERCEPTOR_FD_ACCESS(ctx, fd) {} | |
80 | #endif | |
81 | ||
82 | #ifndef COMMON_INTERCEPTOR_MUTEX_LOCK | |
83 | #define COMMON_INTERCEPTOR_MUTEX_LOCK(ctx, m) {} | |
84 | #endif | |
85 | ||
86 | #ifndef COMMON_INTERCEPTOR_MUTEX_UNLOCK | |
87 | #define COMMON_INTERCEPTOR_MUTEX_UNLOCK(ctx, m) {} | |
88 | #endif | |
89 | ||
90 | #ifndef COMMON_INTERCEPTOR_MUTEX_REPAIR | |
91 | #define COMMON_INTERCEPTOR_MUTEX_REPAIR(ctx, m) {} | |
92 | #endif | |
93 | ||
5bcae85e SL |
94 | #ifndef COMMON_INTERCEPTOR_MUTEX_INVALID |
95 | #define COMMON_INTERCEPTOR_MUTEX_INVALID(ctx, m) {} | |
96 | #endif | |
97 | ||
1a4d82fc JJ |
98 | #ifndef COMMON_INTERCEPTOR_HANDLE_RECVMSG |
99 | #define COMMON_INTERCEPTOR_HANDLE_RECVMSG(ctx, msg) ((void)(msg)) | |
100 | #endif | |
101 | ||
102 | #ifndef COMMON_INTERCEPTOR_FILE_OPEN | |
103 | #define COMMON_INTERCEPTOR_FILE_OPEN(ctx, file, path) {} | |
104 | #endif | |
105 | ||
106 | #ifndef COMMON_INTERCEPTOR_FILE_CLOSE | |
107 | #define COMMON_INTERCEPTOR_FILE_CLOSE(ctx, file) {} | |
108 | #endif | |
109 | ||
92a42be0 SL |
110 | #ifndef COMMON_INTERCEPTOR_LIBRARY_LOADED |
111 | #define COMMON_INTERCEPTOR_LIBRARY_LOADED(filename, handle) {} | |
112 | #endif | |
113 | ||
114 | #ifndef COMMON_INTERCEPTOR_LIBRARY_UNLOADED | |
115 | #define COMMON_INTERCEPTOR_LIBRARY_UNLOADED() {} | |
116 | #endif | |
117 | ||
118 | #ifndef COMMON_INTERCEPTOR_ENTER_NOIGNORE | |
119 | #define COMMON_INTERCEPTOR_ENTER_NOIGNORE(ctx, ...) \ | |
120 | COMMON_INTERCEPTOR_ENTER(ctx, __VA_ARGS__) | |
121 | #endif | |
122 | ||
123 | #ifndef COMMON_INTERCEPTOR_NOTHING_IS_INITIALIZED | |
124 | #define COMMON_INTERCEPTOR_NOTHING_IS_INITIALIZED (0) | |
125 | #endif | |
126 | ||
127 | #define COMMON_INTERCEPTOR_READ_STRING_OF_LEN(ctx, s, len, n) \ | |
128 | COMMON_INTERCEPTOR_READ_RANGE((ctx), (s), \ | |
129 | common_flags()->strict_string_checks ? (len) + 1 : (n) ) | |
130 | ||
131 | #define COMMON_INTERCEPTOR_READ_STRING(ctx, s, n) \ | |
132 | COMMON_INTERCEPTOR_READ_STRING_OF_LEN((ctx), (s), REAL(strlen)(s), (n)) | |
133 | ||
134 | #ifndef COMMON_INTERCEPTOR_ON_DLOPEN | |
135 | #define COMMON_INTERCEPTOR_ON_DLOPEN(filename, flag) {} | |
136 | #endif | |
137 | ||
138 | #ifndef COMMON_INTERCEPTOR_GET_TLS_RANGE | |
139 | #define COMMON_INTERCEPTOR_GET_TLS_RANGE(begin, end) *begin = *end = 0; | |
140 | #endif | |
141 | ||
142 | #ifndef COMMON_INTERCEPTOR_ACQUIRE | |
143 | #define COMMON_INTERCEPTOR_ACQUIRE(ctx, u) {} | |
144 | #endif | |
145 | ||
146 | #ifndef COMMON_INTERCEPTOR_RELEASE | |
147 | #define COMMON_INTERCEPTOR_RELEASE(ctx, u) {} | |
148 | #endif | |
149 | ||
5bcae85e SL |
150 | #ifndef COMMON_INTERCEPTOR_USER_CALLBACK_START |
151 | #define COMMON_INTERCEPTOR_USER_CALLBACK_START() {} | |
152 | #endif | |
153 | ||
154 | #ifndef COMMON_INTERCEPTOR_USER_CALLBACK_END | |
155 | #define COMMON_INTERCEPTOR_USER_CALLBACK_END() {} | |
156 | #endif | |
157 | ||
158 | #ifdef SANITIZER_NLDBL_VERSION | |
159 | #define COMMON_INTERCEPT_FUNCTION_LDBL(fn) \ | |
160 | COMMON_INTERCEPT_FUNCTION_VER(fn, SANITIZER_NLDBL_VERSION) | |
161 | #else | |
162 | #define COMMON_INTERCEPT_FUNCTION_LDBL(fn) \ | |
163 | COMMON_INTERCEPT_FUNCTION(fn) | |
164 | #endif | |
165 | ||
92a42be0 SL |
166 | struct FileMetadata { |
167 | // For open_memstream(). | |
168 | char **addr; | |
169 | SIZE_T *size; | |
170 | }; | |
171 | ||
172 | struct CommonInterceptorMetadata { | |
173 | enum { | |
174 | CIMT_INVALID = 0, | |
175 | CIMT_FILE | |
176 | } type; | |
177 | union { | |
178 | FileMetadata file; | |
179 | }; | |
180 | }; | |
181 | ||
182 | typedef AddrHashMap<CommonInterceptorMetadata, 31051> MetadataHashMap; | |
183 | ||
184 | static MetadataHashMap *interceptor_metadata_map; | |
185 | ||
186 | #if SI_NOT_WINDOWS | |
187 | UNUSED static void SetInterceptorMetadata(__sanitizer_FILE *addr, | |
188 | const FileMetadata &file) { | |
189 | MetadataHashMap::Handle h(interceptor_metadata_map, (uptr)addr); | |
190 | CHECK(h.created()); | |
191 | h->type = CommonInterceptorMetadata::CIMT_FILE; | |
192 | h->file = file; | |
193 | } | |
194 | ||
195 | UNUSED static const FileMetadata *GetInterceptorMetadata( | |
196 | __sanitizer_FILE *addr) { | |
197 | MetadataHashMap::Handle h(interceptor_metadata_map, (uptr)addr, | |
198 | /* remove */ false, | |
199 | /* create */ false); | |
200 | if (h.exists()) { | |
201 | CHECK(!h.created()); | |
202 | CHECK(h->type == CommonInterceptorMetadata::CIMT_FILE); | |
203 | return &h->file; | |
204 | } else { | |
205 | return 0; | |
206 | } | |
207 | } | |
208 | ||
209 | UNUSED static void DeleteInterceptorMetadata(void *addr) { | |
210 | MetadataHashMap::Handle h(interceptor_metadata_map, (uptr)addr, true); | |
211 | CHECK(h.exists()); | |
212 | } | |
213 | #endif // SI_NOT_WINDOWS | |
214 | ||
5bcae85e SL |
215 | #if SANITIZER_INTERCEPT_STRLEN |
216 | INTERCEPTOR(SIZE_T, strlen, const char *s) { | |
217 | // Sometimes strlen is called prior to InitializeCommonInterceptors, | |
218 | // in which case the REAL(strlen) typically used in | |
219 | // COMMON_INTERCEPTOR_ENTER will fail. We use internal_strlen here | |
220 | // to handle that. | |
221 | if (COMMON_INTERCEPTOR_NOTHING_IS_INITIALIZED) | |
222 | return internal_strlen(s); | |
223 | void *ctx; | |
224 | COMMON_INTERCEPTOR_ENTER(ctx, strlen, s); | |
225 | SIZE_T result = REAL(strlen)(s); | |
226 | if (common_flags()->intercept_strlen) | |
227 | COMMON_INTERCEPTOR_READ_RANGE(ctx, s, result + 1); | |
228 | return result; | |
229 | } | |
230 | #define INIT_STRLEN COMMON_INTERCEPT_FUNCTION(strlen) | |
231 | #else | |
232 | #define INIT_STRLEN | |
233 | #endif | |
234 | ||
235 | #if SANITIZER_INTERCEPT_STRNLEN | |
236 | INTERCEPTOR(SIZE_T, strnlen, const char *s, SIZE_T maxlen) { | |
237 | void *ctx; | |
238 | COMMON_INTERCEPTOR_ENTER(ctx, strnlen, s, maxlen); | |
239 | SIZE_T length = REAL(strnlen)(s, maxlen); | |
240 | if (common_flags()->intercept_strlen) | |
241 | COMMON_INTERCEPTOR_READ_RANGE(ctx, s, Min(length + 1, maxlen)); | |
242 | return length; | |
243 | } | |
244 | #define INIT_STRNLEN COMMON_INTERCEPT_FUNCTION(strnlen) | |
245 | #else | |
246 | #define INIT_STRNLEN | |
247 | #endif | |
248 | ||
1a4d82fc JJ |
249 | #if SANITIZER_INTERCEPT_TEXTDOMAIN |
250 | INTERCEPTOR(char*, textdomain, const char *domainname) { | |
251 | void *ctx; | |
252 | COMMON_INTERCEPTOR_ENTER(ctx, textdomain, domainname); | |
92a42be0 SL |
253 | COMMON_INTERCEPTOR_READ_STRING(ctx, domainname, 0); |
254 | char *domain = REAL(textdomain)(domainname); | |
1a4d82fc JJ |
255 | if (domain) { |
256 | COMMON_INTERCEPTOR_INITIALIZE_RANGE(domain, REAL(strlen)(domain) + 1); | |
257 | } | |
258 | return domain; | |
259 | } | |
260 | #define INIT_TEXTDOMAIN COMMON_INTERCEPT_FUNCTION(textdomain) | |
261 | #else | |
262 | #define INIT_TEXTDOMAIN | |
263 | #endif | |
264 | ||
265 | #if SANITIZER_INTERCEPT_STRCMP | |
266 | static inline int CharCmpX(unsigned char c1, unsigned char c2) { | |
267 | return (c1 == c2) ? 0 : (c1 < c2) ? -1 : 1; | |
268 | } | |
269 | ||
92a42be0 | 270 | DECLARE_WEAK_INTERCEPTOR_HOOK(__sanitizer_weak_hook_strcmp, uptr called_pc, |
3157f602 | 271 | const char *s1, const char *s2, int result) |
92a42be0 | 272 | |
1a4d82fc JJ |
273 | INTERCEPTOR(int, strcmp, const char *s1, const char *s2) { |
274 | void *ctx; | |
275 | COMMON_INTERCEPTOR_ENTER(ctx, strcmp, s1, s2); | |
276 | unsigned char c1, c2; | |
277 | uptr i; | |
278 | for (i = 0;; i++) { | |
279 | c1 = (unsigned char)s1[i]; | |
280 | c2 = (unsigned char)s2[i]; | |
281 | if (c1 != c2 || c1 == '\0') break; | |
282 | } | |
92a42be0 SL |
283 | COMMON_INTERCEPTOR_READ_STRING(ctx, s1, i + 1); |
284 | COMMON_INTERCEPTOR_READ_STRING(ctx, s2, i + 1); | |
3157f602 XL |
285 | int result = CharCmpX(c1, c2); |
286 | CALL_WEAK_INTERCEPTOR_HOOK(__sanitizer_weak_hook_strcmp, GET_CALLER_PC(), s1, | |
287 | s2, result); | |
288 | return result; | |
1a4d82fc JJ |
289 | } |
290 | ||
92a42be0 | 291 | DECLARE_WEAK_INTERCEPTOR_HOOK(__sanitizer_weak_hook_strncmp, uptr called_pc, |
3157f602 XL |
292 | const char *s1, const char *s2, uptr n, |
293 | int result) | |
92a42be0 | 294 | |
1a4d82fc | 295 | INTERCEPTOR(int, strncmp, const char *s1, const char *s2, uptr size) { |
92a42be0 SL |
296 | if (COMMON_INTERCEPTOR_NOTHING_IS_INITIALIZED) |
297 | return internal_strncmp(s1, s2, size); | |
1a4d82fc JJ |
298 | void *ctx; |
299 | COMMON_INTERCEPTOR_ENTER(ctx, strncmp, s1, s2, size); | |
300 | unsigned char c1 = 0, c2 = 0; | |
301 | uptr i; | |
302 | for (i = 0; i < size; i++) { | |
303 | c1 = (unsigned char)s1[i]; | |
304 | c2 = (unsigned char)s2[i]; | |
305 | if (c1 != c2 || c1 == '\0') break; | |
306 | } | |
307 | COMMON_INTERCEPTOR_READ_RANGE(ctx, s1, Min(i + 1, size)); | |
308 | COMMON_INTERCEPTOR_READ_RANGE(ctx, s2, Min(i + 1, size)); | |
3157f602 XL |
309 | int result = CharCmpX(c1, c2); |
310 | CALL_WEAK_INTERCEPTOR_HOOK(__sanitizer_weak_hook_strncmp, GET_CALLER_PC(), s1, | |
311 | s2, size, result); | |
312 | return result; | |
1a4d82fc JJ |
313 | } |
314 | ||
315 | #define INIT_STRCMP COMMON_INTERCEPT_FUNCTION(strcmp) | |
316 | #define INIT_STRNCMP COMMON_INTERCEPT_FUNCTION(strncmp) | |
317 | #else | |
318 | #define INIT_STRCMP | |
319 | #define INIT_STRNCMP | |
320 | #endif | |
321 | ||
322 | #if SANITIZER_INTERCEPT_STRCASECMP | |
323 | static inline int CharCaseCmp(unsigned char c1, unsigned char c2) { | |
324 | int c1_low = ToLower(c1); | |
325 | int c2_low = ToLower(c2); | |
326 | return c1_low - c2_low; | |
327 | } | |
328 | ||
5bcae85e SL |
329 | DECLARE_WEAK_INTERCEPTOR_HOOK(__sanitizer_weak_hook_strcasecmp, uptr called_pc, |
330 | const char *s1, const char *s2, int result) | |
331 | ||
1a4d82fc JJ |
332 | INTERCEPTOR(int, strcasecmp, const char *s1, const char *s2) { |
333 | void *ctx; | |
334 | COMMON_INTERCEPTOR_ENTER(ctx, strcasecmp, s1, s2); | |
335 | unsigned char c1 = 0, c2 = 0; | |
336 | uptr i; | |
337 | for (i = 0;; i++) { | |
338 | c1 = (unsigned char)s1[i]; | |
339 | c2 = (unsigned char)s2[i]; | |
340 | if (CharCaseCmp(c1, c2) != 0 || c1 == '\0') break; | |
341 | } | |
92a42be0 SL |
342 | COMMON_INTERCEPTOR_READ_STRING(ctx, s1, i + 1); |
343 | COMMON_INTERCEPTOR_READ_STRING(ctx, s2, i + 1); | |
5bcae85e SL |
344 | int result = CharCaseCmp(c1, c2); |
345 | CALL_WEAK_INTERCEPTOR_HOOK(__sanitizer_weak_hook_strcasecmp, GET_CALLER_PC(), | |
346 | s1, s2, result); | |
347 | return result; | |
1a4d82fc JJ |
348 | } |
349 | ||
5bcae85e SL |
350 | DECLARE_WEAK_INTERCEPTOR_HOOK(__sanitizer_weak_hook_strncasecmp, uptr called_pc, |
351 | const char *s1, const char *s2, uptr n, | |
352 | int result) | |
353 | ||
1a4d82fc JJ |
354 | INTERCEPTOR(int, strncasecmp, const char *s1, const char *s2, SIZE_T n) { |
355 | void *ctx; | |
356 | COMMON_INTERCEPTOR_ENTER(ctx, strncasecmp, s1, s2, n); | |
357 | unsigned char c1 = 0, c2 = 0; | |
358 | uptr i; | |
359 | for (i = 0; i < n; i++) { | |
360 | c1 = (unsigned char)s1[i]; | |
361 | c2 = (unsigned char)s2[i]; | |
362 | if (CharCaseCmp(c1, c2) != 0 || c1 == '\0') break; | |
363 | } | |
364 | COMMON_INTERCEPTOR_READ_RANGE(ctx, s1, Min(i + 1, n)); | |
365 | COMMON_INTERCEPTOR_READ_RANGE(ctx, s2, Min(i + 1, n)); | |
5bcae85e SL |
366 | int result = CharCaseCmp(c1, c2); |
367 | CALL_WEAK_INTERCEPTOR_HOOK(__sanitizer_weak_hook_strncasecmp, GET_CALLER_PC(), | |
368 | s1, s2, n, result); | |
369 | return result; | |
1a4d82fc JJ |
370 | } |
371 | ||
372 | #define INIT_STRCASECMP COMMON_INTERCEPT_FUNCTION(strcasecmp) | |
373 | #define INIT_STRNCASECMP COMMON_INTERCEPT_FUNCTION(strncasecmp) | |
374 | #else | |
375 | #define INIT_STRCASECMP | |
376 | #define INIT_STRNCASECMP | |
377 | #endif | |
378 | ||
92a42be0 SL |
379 | #if SANITIZER_INTERCEPT_STRSTR || SANITIZER_INTERCEPT_STRCASESTR |
380 | static inline void StrstrCheck(void *ctx, char *r, const char *s1, | |
381 | const char *s2) { | |
382 | uptr len1 = REAL(strlen)(s1); | |
383 | uptr len2 = REAL(strlen)(s2); | |
384 | COMMON_INTERCEPTOR_READ_STRING_OF_LEN(ctx, s1, len1, | |
385 | r ? r - s1 + len2 : len1 + 1); | |
386 | COMMON_INTERCEPTOR_READ_RANGE(ctx, s2, len2 + 1); | |
387 | } | |
388 | #endif | |
389 | ||
390 | #if SANITIZER_INTERCEPT_STRSTR | |
5bcae85e SL |
391 | |
392 | DECLARE_WEAK_INTERCEPTOR_HOOK(__sanitizer_weak_hook_strstr, uptr called_pc, | |
393 | const char *s1, const char *s2, char *result); | |
394 | ||
92a42be0 SL |
395 | INTERCEPTOR(char*, strstr, const char *s1, const char *s2) { |
396 | if (COMMON_INTERCEPTOR_NOTHING_IS_INITIALIZED) | |
397 | return internal_strstr(s1, s2); | |
398 | void *ctx; | |
399 | COMMON_INTERCEPTOR_ENTER(ctx, strstr, s1, s2); | |
400 | char *r = REAL(strstr)(s1, s2); | |
401 | if (common_flags()->intercept_strstr) | |
402 | StrstrCheck(ctx, r, s1, s2); | |
5bcae85e SL |
403 | CALL_WEAK_INTERCEPTOR_HOOK(__sanitizer_weak_hook_strstr, GET_CALLER_PC(), s1, |
404 | s2, r); | |
92a42be0 SL |
405 | return r; |
406 | } | |
407 | ||
408 | #define INIT_STRSTR COMMON_INTERCEPT_FUNCTION(strstr); | |
409 | #else | |
410 | #define INIT_STRSTR | |
411 | #endif | |
412 | ||
413 | #if SANITIZER_INTERCEPT_STRCASESTR | |
5bcae85e SL |
414 | |
415 | DECLARE_WEAK_INTERCEPTOR_HOOK(__sanitizer_weak_hook_strcasestr, uptr called_pc, | |
416 | const char *s1, const char *s2, char *result); | |
417 | ||
92a42be0 SL |
418 | INTERCEPTOR(char*, strcasestr, const char *s1, const char *s2) { |
419 | void *ctx; | |
420 | COMMON_INTERCEPTOR_ENTER(ctx, strcasestr, s1, s2); | |
421 | char *r = REAL(strcasestr)(s1, s2); | |
422 | if (common_flags()->intercept_strstr) | |
423 | StrstrCheck(ctx, r, s1, s2); | |
5bcae85e SL |
424 | CALL_WEAK_INTERCEPTOR_HOOK(__sanitizer_weak_hook_strcasestr, GET_CALLER_PC(), |
425 | s1, s2, r); | |
92a42be0 SL |
426 | return r; |
427 | } | |
428 | ||
429 | #define INIT_STRCASESTR COMMON_INTERCEPT_FUNCTION(strcasestr); | |
430 | #else | |
431 | #define INIT_STRCASESTR | |
432 | #endif | |
433 | ||
5bcae85e SL |
434 | #if SANITIZER_INTERCEPT_MEMMEM |
435 | DECLARE_WEAK_INTERCEPTOR_HOOK(__sanitizer_weak_hook_memmem, uptr called_pc, | |
436 | const void *s1, SIZE_T len1, const void *s2, | |
437 | SIZE_T len2, void *result); | |
438 | ||
439 | INTERCEPTOR(void*, memmem, const void *s1, SIZE_T len1, const void *s2, | |
440 | SIZE_T len2) { | |
441 | void *ctx; | |
442 | COMMON_INTERCEPTOR_ENTER(ctx, memmem, s1, len1, s2, len2); | |
443 | void *r = REAL(memmem)(s1, len1, s2, len2); | |
444 | if (common_flags()->intercept_memmem) { | |
445 | COMMON_INTERCEPTOR_READ_RANGE(ctx, s1, len1); | |
446 | COMMON_INTERCEPTOR_READ_RANGE(ctx, s2, len2); | |
447 | } | |
448 | CALL_WEAK_INTERCEPTOR_HOOK(__sanitizer_weak_hook_memmem, GET_CALLER_PC(), | |
449 | s1, len1, s2, len2, r); | |
450 | return r; | |
451 | } | |
452 | ||
453 | #define INIT_MEMMEM COMMON_INTERCEPT_FUNCTION(memmem); | |
454 | #else | |
455 | #define INIT_MEMMEM | |
456 | #endif // SANITIZER_INTERCEPT_MEMMEM | |
457 | ||
458 | #if SANITIZER_INTERCEPT_STRCHR | |
459 | INTERCEPTOR(char*, strchr, const char *s, int c) { | |
460 | void *ctx; | |
461 | if (COMMON_INTERCEPTOR_NOTHING_IS_INITIALIZED) | |
462 | return internal_strchr(s, c); | |
463 | COMMON_INTERCEPTOR_ENTER(ctx, strchr, s, c); | |
464 | char *result = REAL(strchr)(s, c); | |
465 | uptr len = internal_strlen(s); | |
466 | uptr n = result ? result - s + 1 : len + 1; | |
467 | if (common_flags()->intercept_strchr) | |
468 | COMMON_INTERCEPTOR_READ_STRING_OF_LEN(ctx, s, len, n); | |
469 | return result; | |
470 | } | |
471 | #define INIT_STRCHR COMMON_INTERCEPT_FUNCTION(strchr) | |
472 | #else | |
473 | #define INIT_STRCHR | |
474 | #endif | |
475 | ||
476 | #if SANITIZER_INTERCEPT_STRCHRNUL | |
477 | INTERCEPTOR(char*, strchrnul, const char *s, int c) { | |
478 | void *ctx; | |
479 | COMMON_INTERCEPTOR_ENTER(ctx, strchrnul, s, c); | |
480 | char *result = REAL(strchrnul)(s, c); | |
481 | uptr len = result - s + 1; | |
482 | if (common_flags()->intercept_strchr) | |
483 | COMMON_INTERCEPTOR_READ_STRING(ctx, s, len); | |
484 | return result; | |
485 | } | |
486 | #define INIT_STRCHRNUL COMMON_INTERCEPT_FUNCTION(strchrnul) | |
487 | #else | |
488 | #define INIT_STRCHRNUL | |
489 | #endif | |
490 | ||
491 | #if SANITIZER_INTERCEPT_STRRCHR | |
492 | INTERCEPTOR(char*, strrchr, const char *s, int c) { | |
493 | void *ctx; | |
494 | if (COMMON_INTERCEPTOR_NOTHING_IS_INITIALIZED) | |
495 | return internal_strrchr(s, c); | |
496 | COMMON_INTERCEPTOR_ENTER(ctx, strrchr, s, c); | |
497 | uptr len = internal_strlen(s); | |
498 | if (common_flags()->intercept_strchr) | |
499 | COMMON_INTERCEPTOR_READ_STRING_OF_LEN(ctx, s, len, len + 1); | |
500 | return REAL(strrchr)(s, c); | |
501 | } | |
502 | #define INIT_STRRCHR COMMON_INTERCEPT_FUNCTION(strrchr) | |
503 | #else | |
504 | #define INIT_STRRCHR | |
505 | #endif | |
506 | ||
92a42be0 SL |
507 | #if SANITIZER_INTERCEPT_STRSPN |
508 | INTERCEPTOR(SIZE_T, strspn, const char *s1, const char *s2) { | |
509 | void *ctx; | |
510 | COMMON_INTERCEPTOR_ENTER(ctx, strspn, s1, s2); | |
511 | SIZE_T r = REAL(strspn)(s1, s2); | |
512 | if (common_flags()->intercept_strspn) { | |
513 | COMMON_INTERCEPTOR_READ_RANGE(ctx, s2, REAL(strlen)(s2) + 1); | |
514 | COMMON_INTERCEPTOR_READ_STRING(ctx, s1, r + 1); | |
515 | } | |
516 | return r; | |
517 | } | |
518 | ||
519 | INTERCEPTOR(SIZE_T, strcspn, const char *s1, const char *s2) { | |
520 | void *ctx; | |
521 | COMMON_INTERCEPTOR_ENTER(ctx, strcspn, s1, s2); | |
522 | SIZE_T r = REAL(strcspn)(s1, s2); | |
523 | if (common_flags()->intercept_strspn) { | |
524 | COMMON_INTERCEPTOR_READ_RANGE(ctx, s2, REAL(strlen)(s2) + 1); | |
525 | COMMON_INTERCEPTOR_READ_STRING(ctx, s1, r + 1); | |
526 | } | |
527 | return r; | |
528 | } | |
529 | ||
530 | #define INIT_STRSPN \ | |
531 | COMMON_INTERCEPT_FUNCTION(strspn); \ | |
532 | COMMON_INTERCEPT_FUNCTION(strcspn); | |
533 | #else | |
534 | #define INIT_STRSPN | |
535 | #endif | |
536 | ||
537 | #if SANITIZER_INTERCEPT_STRPBRK | |
538 | INTERCEPTOR(char *, strpbrk, const char *s1, const char *s2) { | |
539 | void *ctx; | |
540 | COMMON_INTERCEPTOR_ENTER(ctx, strpbrk, s1, s2); | |
541 | char *r = REAL(strpbrk)(s1, s2); | |
542 | if (common_flags()->intercept_strpbrk) { | |
543 | COMMON_INTERCEPTOR_READ_RANGE(ctx, s2, REAL(strlen)(s2) + 1); | |
544 | COMMON_INTERCEPTOR_READ_STRING(ctx, s1, | |
545 | r ? r - s1 + 1 : REAL(strlen)(s1) + 1); | |
546 | } | |
547 | return r; | |
548 | } | |
549 | ||
550 | #define INIT_STRPBRK COMMON_INTERCEPT_FUNCTION(strpbrk); | |
551 | #else | |
552 | #define INIT_STRPBRK | |
553 | #endif | |
554 | ||
5bcae85e SL |
555 | #if SANITIZER_INTERCEPT_MEMSET |
556 | INTERCEPTOR(void*, memset, void *dst, int v, uptr size) { | |
557 | if (COMMON_INTERCEPTOR_NOTHING_IS_INITIALIZED) | |
558 | return internal_memset(dst, v, size); | |
559 | void *ctx; | |
560 | COMMON_INTERCEPTOR_ENTER(ctx, memset, dst, v, size); | |
561 | if (common_flags()->intercept_intrin) | |
562 | COMMON_INTERCEPTOR_WRITE_RANGE(ctx, dst, size); | |
563 | return REAL(memset)(dst, v, size); | |
564 | } | |
565 | ||
566 | #define INIT_MEMSET COMMON_INTERCEPT_FUNCTION(memset) | |
567 | #else | |
568 | #define INIT_MEMSET | |
569 | #endif | |
570 | ||
571 | #if SANITIZER_INTERCEPT_MEMMOVE | |
572 | INTERCEPTOR(void*, memmove, void *dst, const void *src, uptr size) { | |
573 | if (COMMON_INTERCEPTOR_NOTHING_IS_INITIALIZED) | |
574 | return internal_memmove(dst, src, size); | |
575 | void *ctx; | |
576 | COMMON_INTERCEPTOR_ENTER(ctx, memmove, dst, src, size); | |
577 | if (common_flags()->intercept_intrin) { | |
578 | COMMON_INTERCEPTOR_WRITE_RANGE(ctx, dst, size); | |
579 | COMMON_INTERCEPTOR_READ_RANGE(ctx, src, size); | |
580 | } | |
581 | return REAL(memmove)(dst, src, size); | |
582 | } | |
583 | ||
584 | #define INIT_MEMMOVE COMMON_INTERCEPT_FUNCTION(memmove) | |
585 | #else | |
586 | #define INIT_MEMMOVE | |
587 | #endif | |
588 | ||
589 | #if SANITIZER_INTERCEPT_MEMCPY | |
590 | INTERCEPTOR(void*, memcpy, void *dst, const void *src, uptr size) { | |
591 | if (COMMON_INTERCEPTOR_NOTHING_IS_INITIALIZED) { | |
592 | // On OS X, calling internal_memcpy here will cause memory corruptions, | |
593 | // because memcpy and memmove are actually aliases of the same | |
594 | // implementation. We need to use internal_memmove here. | |
595 | return internal_memmove(dst, src, size); | |
596 | } | |
597 | void *ctx; | |
598 | COMMON_INTERCEPTOR_ENTER(ctx, memcpy, dst, src, size); | |
599 | if (common_flags()->intercept_intrin) { | |
600 | COMMON_INTERCEPTOR_WRITE_RANGE(ctx, dst, size); | |
601 | COMMON_INTERCEPTOR_READ_RANGE(ctx, src, size); | |
602 | } | |
603 | // N.B.: If we switch this to internal_ we'll have to use internal_memmove | |
604 | // due to memcpy being an alias of memmove on OS X. | |
605 | return REAL(memcpy)(dst, src, size); | |
606 | } | |
607 | ||
608 | #define INIT_MEMCPY COMMON_INTERCEPT_FUNCTION(memcpy) | |
609 | #else | |
610 | #define INIT_MEMCPY | |
611 | #endif | |
612 | ||
92a42be0 SL |
613 | #if SANITIZER_INTERCEPT_MEMCMP |
614 | ||
615 | DECLARE_WEAK_INTERCEPTOR_HOOK(__sanitizer_weak_hook_memcmp, uptr called_pc, | |
3157f602 XL |
616 | const void *s1, const void *s2, uptr n, |
617 | int result) | |
92a42be0 SL |
618 | |
619 | INTERCEPTOR(int, memcmp, const void *a1, const void *a2, uptr size) { | |
92a42be0 SL |
620 | if (COMMON_INTERCEPTOR_NOTHING_IS_INITIALIZED) |
621 | return internal_memcmp(a1, a2, size); | |
3157f602 XL |
622 | void *ctx; |
623 | COMMON_INTERCEPTOR_ENTER(ctx, memcmp, a1, a2, size); | |
92a42be0 SL |
624 | if (common_flags()->intercept_memcmp) { |
625 | if (common_flags()->strict_memcmp) { | |
626 | // Check the entire regions even if the first bytes of the buffers are | |
627 | // different. | |
628 | COMMON_INTERCEPTOR_READ_RANGE(ctx, a1, size); | |
629 | COMMON_INTERCEPTOR_READ_RANGE(ctx, a2, size); | |
630 | // Fallthrough to REAL(memcmp) below. | |
631 | } else { | |
632 | unsigned char c1 = 0, c2 = 0; | |
633 | const unsigned char *s1 = (const unsigned char*)a1; | |
634 | const unsigned char *s2 = (const unsigned char*)a2; | |
635 | uptr i; | |
636 | for (i = 0; i < size; i++) { | |
637 | c1 = s1[i]; | |
638 | c2 = s2[i]; | |
639 | if (c1 != c2) break; | |
640 | } | |
641 | COMMON_INTERCEPTOR_READ_RANGE(ctx, s1, Min(i + 1, size)); | |
642 | COMMON_INTERCEPTOR_READ_RANGE(ctx, s2, Min(i + 1, size)); | |
3157f602 XL |
643 | int r = CharCmpX(c1, c2); |
644 | CALL_WEAK_INTERCEPTOR_HOOK(__sanitizer_weak_hook_memcmp, GET_CALLER_PC(), | |
645 | a1, a2, size, r); | |
646 | return r; | |
92a42be0 SL |
647 | } |
648 | } | |
3157f602 XL |
649 | int result = REAL(memcmp(a1, a2, size)); |
650 | CALL_WEAK_INTERCEPTOR_HOOK(__sanitizer_weak_hook_memcmp, GET_CALLER_PC(), a1, | |
651 | a2, size, result); | |
652 | return result; | |
92a42be0 SL |
653 | } |
654 | ||
655 | #define INIT_MEMCMP COMMON_INTERCEPT_FUNCTION(memcmp) | |
656 | #else | |
657 | #define INIT_MEMCMP | |
658 | #endif | |
659 | ||
1a4d82fc JJ |
660 | #if SANITIZER_INTERCEPT_MEMCHR |
661 | INTERCEPTOR(void*, memchr, const void *s, int c, SIZE_T n) { | |
92a42be0 SL |
662 | if (COMMON_INTERCEPTOR_NOTHING_IS_INITIALIZED) |
663 | return internal_memchr(s, c, n); | |
1a4d82fc JJ |
664 | void *ctx; |
665 | COMMON_INTERCEPTOR_ENTER(ctx, memchr, s, c, n); | |
666 | void *res = REAL(memchr)(s, c, n); | |
92a42be0 | 667 | uptr len = res ? (char *)res - (const char *)s + 1 : n; |
1a4d82fc JJ |
668 | COMMON_INTERCEPTOR_READ_RANGE(ctx, s, len); |
669 | return res; | |
670 | } | |
671 | ||
672 | #define INIT_MEMCHR COMMON_INTERCEPT_FUNCTION(memchr) | |
673 | #else | |
674 | #define INIT_MEMCHR | |
675 | #endif | |
676 | ||
677 | #if SANITIZER_INTERCEPT_MEMRCHR | |
678 | INTERCEPTOR(void*, memrchr, const void *s, int c, SIZE_T n) { | |
679 | void *ctx; | |
680 | COMMON_INTERCEPTOR_ENTER(ctx, memrchr, s, c, n); | |
681 | COMMON_INTERCEPTOR_READ_RANGE(ctx, s, n); | |
682 | return REAL(memrchr)(s, c, n); | |
683 | } | |
684 | ||
685 | #define INIT_MEMRCHR COMMON_INTERCEPT_FUNCTION(memrchr) | |
686 | #else | |
687 | #define INIT_MEMRCHR | |
688 | #endif | |
689 | ||
690 | #if SANITIZER_INTERCEPT_FREXP | |
691 | INTERCEPTOR(double, frexp, double x, int *exp) { | |
692 | void *ctx; | |
693 | COMMON_INTERCEPTOR_ENTER(ctx, frexp, x, exp); | |
92a42be0 | 694 | // Assuming frexp() always writes to |exp|. |
1a4d82fc | 695 | COMMON_INTERCEPTOR_WRITE_RANGE(ctx, exp, sizeof(*exp)); |
92a42be0 | 696 | double res = REAL(frexp)(x, exp); |
1a4d82fc JJ |
697 | return res; |
698 | } | |
699 | ||
700 | #define INIT_FREXP COMMON_INTERCEPT_FUNCTION(frexp); | |
701 | #else | |
702 | #define INIT_FREXP | |
703 | #endif // SANITIZER_INTERCEPT_FREXP | |
704 | ||
705 | #if SANITIZER_INTERCEPT_FREXPF_FREXPL | |
706 | INTERCEPTOR(float, frexpf, float x, int *exp) { | |
707 | void *ctx; | |
708 | COMMON_INTERCEPTOR_ENTER(ctx, frexpf, x, exp); | |
92a42be0 SL |
709 | // FIXME: under ASan the call below may write to freed memory and corrupt |
710 | // its metadata. See | |
3157f602 | 711 | // https://github.com/google/sanitizers/issues/321. |
1a4d82fc JJ |
712 | float res = REAL(frexpf)(x, exp); |
713 | COMMON_INTERCEPTOR_WRITE_RANGE(ctx, exp, sizeof(*exp)); | |
714 | return res; | |
715 | } | |
716 | ||
717 | INTERCEPTOR(long double, frexpl, long double x, int *exp) { | |
718 | void *ctx; | |
719 | COMMON_INTERCEPTOR_ENTER(ctx, frexpl, x, exp); | |
92a42be0 SL |
720 | // FIXME: under ASan the call below may write to freed memory and corrupt |
721 | // its metadata. See | |
3157f602 | 722 | // https://github.com/google/sanitizers/issues/321. |
1a4d82fc JJ |
723 | long double res = REAL(frexpl)(x, exp); |
724 | COMMON_INTERCEPTOR_WRITE_RANGE(ctx, exp, sizeof(*exp)); | |
725 | return res; | |
726 | } | |
727 | ||
728 | #define INIT_FREXPF_FREXPL \ | |
729 | COMMON_INTERCEPT_FUNCTION(frexpf); \ | |
5bcae85e | 730 | COMMON_INTERCEPT_FUNCTION_LDBL(frexpl) |
1a4d82fc JJ |
731 | #else |
732 | #define INIT_FREXPF_FREXPL | |
733 | #endif // SANITIZER_INTERCEPT_FREXPF_FREXPL | |
734 | ||
735 | #if SI_NOT_WINDOWS | |
736 | static void write_iovec(void *ctx, struct __sanitizer_iovec *iovec, | |
737 | SIZE_T iovlen, SIZE_T maxlen) { | |
738 | for (SIZE_T i = 0; i < iovlen && maxlen; ++i) { | |
739 | SSIZE_T sz = Min(iovec[i].iov_len, maxlen); | |
740 | COMMON_INTERCEPTOR_WRITE_RANGE(ctx, iovec[i].iov_base, sz); | |
741 | maxlen -= sz; | |
742 | } | |
743 | } | |
744 | ||
745 | static void read_iovec(void *ctx, struct __sanitizer_iovec *iovec, | |
746 | SIZE_T iovlen, SIZE_T maxlen) { | |
747 | COMMON_INTERCEPTOR_READ_RANGE(ctx, iovec, sizeof(*iovec) * iovlen); | |
748 | for (SIZE_T i = 0; i < iovlen && maxlen; ++i) { | |
749 | SSIZE_T sz = Min(iovec[i].iov_len, maxlen); | |
750 | COMMON_INTERCEPTOR_READ_RANGE(ctx, iovec[i].iov_base, sz); | |
751 | maxlen -= sz; | |
752 | } | |
753 | } | |
754 | #endif | |
755 | ||
756 | #if SANITIZER_INTERCEPT_READ | |
757 | INTERCEPTOR(SSIZE_T, read, int fd, void *ptr, SIZE_T count) { | |
758 | void *ctx; | |
759 | COMMON_INTERCEPTOR_ENTER(ctx, read, fd, ptr, count); | |
760 | COMMON_INTERCEPTOR_FD_ACCESS(ctx, fd); | |
92a42be0 SL |
761 | // FIXME: under ASan the call below may write to freed memory and corrupt |
762 | // its metadata. See | |
3157f602 | 763 | // https://github.com/google/sanitizers/issues/321. |
1a4d82fc JJ |
764 | SSIZE_T res = REAL(read)(fd, ptr, count); |
765 | if (res > 0) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, ptr, res); | |
766 | if (res >= 0 && fd >= 0) COMMON_INTERCEPTOR_FD_ACQUIRE(ctx, fd); | |
767 | return res; | |
768 | } | |
769 | #define INIT_READ COMMON_INTERCEPT_FUNCTION(read) | |
770 | #else | |
771 | #define INIT_READ | |
772 | #endif | |
773 | ||
774 | #if SANITIZER_INTERCEPT_PREAD | |
775 | INTERCEPTOR(SSIZE_T, pread, int fd, void *ptr, SIZE_T count, OFF_T offset) { | |
776 | void *ctx; | |
777 | COMMON_INTERCEPTOR_ENTER(ctx, pread, fd, ptr, count, offset); | |
778 | COMMON_INTERCEPTOR_FD_ACCESS(ctx, fd); | |
92a42be0 SL |
779 | // FIXME: under ASan the call below may write to freed memory and corrupt |
780 | // its metadata. See | |
3157f602 | 781 | // https://github.com/google/sanitizers/issues/321. |
1a4d82fc JJ |
782 | SSIZE_T res = REAL(pread)(fd, ptr, count, offset); |
783 | if (res > 0) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, ptr, res); | |
784 | if (res >= 0 && fd >= 0) COMMON_INTERCEPTOR_FD_ACQUIRE(ctx, fd); | |
785 | return res; | |
786 | } | |
787 | #define INIT_PREAD COMMON_INTERCEPT_FUNCTION(pread) | |
788 | #else | |
789 | #define INIT_PREAD | |
790 | #endif | |
791 | ||
792 | #if SANITIZER_INTERCEPT_PREAD64 | |
793 | INTERCEPTOR(SSIZE_T, pread64, int fd, void *ptr, SIZE_T count, OFF64_T offset) { | |
794 | void *ctx; | |
795 | COMMON_INTERCEPTOR_ENTER(ctx, pread64, fd, ptr, count, offset); | |
796 | COMMON_INTERCEPTOR_FD_ACCESS(ctx, fd); | |
92a42be0 SL |
797 | // FIXME: under ASan the call below may write to freed memory and corrupt |
798 | // its metadata. See | |
3157f602 | 799 | // https://github.com/google/sanitizers/issues/321. |
1a4d82fc JJ |
800 | SSIZE_T res = REAL(pread64)(fd, ptr, count, offset); |
801 | if (res > 0) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, ptr, res); | |
802 | if (res >= 0 && fd >= 0) COMMON_INTERCEPTOR_FD_ACQUIRE(ctx, fd); | |
803 | return res; | |
804 | } | |
805 | #define INIT_PREAD64 COMMON_INTERCEPT_FUNCTION(pread64) | |
806 | #else | |
807 | #define INIT_PREAD64 | |
808 | #endif | |
809 | ||
810 | #if SANITIZER_INTERCEPT_READV | |
811 | INTERCEPTOR_WITH_SUFFIX(SSIZE_T, readv, int fd, __sanitizer_iovec *iov, | |
812 | int iovcnt) { | |
813 | void *ctx; | |
814 | COMMON_INTERCEPTOR_ENTER(ctx, readv, fd, iov, iovcnt); | |
815 | COMMON_INTERCEPTOR_FD_ACCESS(ctx, fd); | |
816 | SSIZE_T res = REAL(readv)(fd, iov, iovcnt); | |
817 | if (res > 0) write_iovec(ctx, iov, iovcnt, res); | |
818 | if (res >= 0 && fd >= 0) COMMON_INTERCEPTOR_FD_ACQUIRE(ctx, fd); | |
819 | return res; | |
820 | } | |
821 | #define INIT_READV COMMON_INTERCEPT_FUNCTION(readv) | |
822 | #else | |
823 | #define INIT_READV | |
824 | #endif | |
825 | ||
826 | #if SANITIZER_INTERCEPT_PREADV | |
827 | INTERCEPTOR(SSIZE_T, preadv, int fd, __sanitizer_iovec *iov, int iovcnt, | |
828 | OFF_T offset) { | |
829 | void *ctx; | |
830 | COMMON_INTERCEPTOR_ENTER(ctx, preadv, fd, iov, iovcnt, offset); | |
831 | COMMON_INTERCEPTOR_FD_ACCESS(ctx, fd); | |
832 | SSIZE_T res = REAL(preadv)(fd, iov, iovcnt, offset); | |
833 | if (res > 0) write_iovec(ctx, iov, iovcnt, res); | |
834 | if (res >= 0 && fd >= 0) COMMON_INTERCEPTOR_FD_ACQUIRE(ctx, fd); | |
835 | return res; | |
836 | } | |
837 | #define INIT_PREADV COMMON_INTERCEPT_FUNCTION(preadv) | |
838 | #else | |
839 | #define INIT_PREADV | |
840 | #endif | |
841 | ||
842 | #if SANITIZER_INTERCEPT_PREADV64 | |
843 | INTERCEPTOR(SSIZE_T, preadv64, int fd, __sanitizer_iovec *iov, int iovcnt, | |
844 | OFF64_T offset) { | |
845 | void *ctx; | |
846 | COMMON_INTERCEPTOR_ENTER(ctx, preadv64, fd, iov, iovcnt, offset); | |
847 | COMMON_INTERCEPTOR_FD_ACCESS(ctx, fd); | |
848 | SSIZE_T res = REAL(preadv64)(fd, iov, iovcnt, offset); | |
849 | if (res > 0) write_iovec(ctx, iov, iovcnt, res); | |
850 | if (res >= 0 && fd >= 0) COMMON_INTERCEPTOR_FD_ACQUIRE(ctx, fd); | |
851 | return res; | |
852 | } | |
853 | #define INIT_PREADV64 COMMON_INTERCEPT_FUNCTION(preadv64) | |
854 | #else | |
855 | #define INIT_PREADV64 | |
856 | #endif | |
857 | ||
858 | #if SANITIZER_INTERCEPT_WRITE | |
859 | INTERCEPTOR(SSIZE_T, write, int fd, void *ptr, SIZE_T count) { | |
860 | void *ctx; | |
861 | COMMON_INTERCEPTOR_ENTER(ctx, write, fd, ptr, count); | |
862 | COMMON_INTERCEPTOR_FD_ACCESS(ctx, fd); | |
863 | if (fd >= 0) COMMON_INTERCEPTOR_FD_RELEASE(ctx, fd); | |
864 | SSIZE_T res = REAL(write)(fd, ptr, count); | |
865 | // FIXME: this check should be _before_ the call to REAL(write), not after | |
866 | if (res > 0) COMMON_INTERCEPTOR_READ_RANGE(ctx, ptr, res); | |
867 | return res; | |
868 | } | |
869 | #define INIT_WRITE COMMON_INTERCEPT_FUNCTION(write) | |
870 | #else | |
871 | #define INIT_WRITE | |
872 | #endif | |
873 | ||
874 | #if SANITIZER_INTERCEPT_PWRITE | |
875 | INTERCEPTOR(SSIZE_T, pwrite, int fd, void *ptr, SIZE_T count, OFF_T offset) { | |
876 | void *ctx; | |
877 | COMMON_INTERCEPTOR_ENTER(ctx, pwrite, fd, ptr, count, offset); | |
878 | COMMON_INTERCEPTOR_FD_ACCESS(ctx, fd); | |
879 | if (fd >= 0) COMMON_INTERCEPTOR_FD_RELEASE(ctx, fd); | |
880 | SSIZE_T res = REAL(pwrite)(fd, ptr, count, offset); | |
881 | if (res > 0) COMMON_INTERCEPTOR_READ_RANGE(ctx, ptr, res); | |
882 | return res; | |
883 | } | |
884 | #define INIT_PWRITE COMMON_INTERCEPT_FUNCTION(pwrite) | |
885 | #else | |
886 | #define INIT_PWRITE | |
887 | #endif | |
888 | ||
889 | #if SANITIZER_INTERCEPT_PWRITE64 | |
890 | INTERCEPTOR(SSIZE_T, pwrite64, int fd, void *ptr, OFF64_T count, | |
891 | OFF64_T offset) { | |
892 | void *ctx; | |
893 | COMMON_INTERCEPTOR_ENTER(ctx, pwrite64, fd, ptr, count, offset); | |
894 | COMMON_INTERCEPTOR_FD_ACCESS(ctx, fd); | |
895 | if (fd >= 0) COMMON_INTERCEPTOR_FD_RELEASE(ctx, fd); | |
896 | SSIZE_T res = REAL(pwrite64)(fd, ptr, count, offset); | |
897 | if (res > 0) COMMON_INTERCEPTOR_READ_RANGE(ctx, ptr, res); | |
898 | return res; | |
899 | } | |
900 | #define INIT_PWRITE64 COMMON_INTERCEPT_FUNCTION(pwrite64) | |
901 | #else | |
902 | #define INIT_PWRITE64 | |
903 | #endif | |
904 | ||
905 | #if SANITIZER_INTERCEPT_WRITEV | |
906 | INTERCEPTOR_WITH_SUFFIX(SSIZE_T, writev, int fd, __sanitizer_iovec *iov, | |
907 | int iovcnt) { | |
908 | void *ctx; | |
909 | COMMON_INTERCEPTOR_ENTER(ctx, writev, fd, iov, iovcnt); | |
910 | COMMON_INTERCEPTOR_FD_ACCESS(ctx, fd); | |
911 | if (fd >= 0) COMMON_INTERCEPTOR_FD_RELEASE(ctx, fd); | |
912 | SSIZE_T res = REAL(writev)(fd, iov, iovcnt); | |
913 | if (res > 0) read_iovec(ctx, iov, iovcnt, res); | |
914 | return res; | |
915 | } | |
916 | #define INIT_WRITEV COMMON_INTERCEPT_FUNCTION(writev) | |
917 | #else | |
918 | #define INIT_WRITEV | |
919 | #endif | |
920 | ||
921 | #if SANITIZER_INTERCEPT_PWRITEV | |
922 | INTERCEPTOR(SSIZE_T, pwritev, int fd, __sanitizer_iovec *iov, int iovcnt, | |
923 | OFF_T offset) { | |
924 | void *ctx; | |
925 | COMMON_INTERCEPTOR_ENTER(ctx, pwritev, fd, iov, iovcnt, offset); | |
926 | COMMON_INTERCEPTOR_FD_ACCESS(ctx, fd); | |
927 | if (fd >= 0) COMMON_INTERCEPTOR_FD_RELEASE(ctx, fd); | |
928 | SSIZE_T res = REAL(pwritev)(fd, iov, iovcnt, offset); | |
929 | if (res > 0) read_iovec(ctx, iov, iovcnt, res); | |
930 | return res; | |
931 | } | |
932 | #define INIT_PWRITEV COMMON_INTERCEPT_FUNCTION(pwritev) | |
933 | #else | |
934 | #define INIT_PWRITEV | |
935 | #endif | |
936 | ||
937 | #if SANITIZER_INTERCEPT_PWRITEV64 | |
938 | INTERCEPTOR(SSIZE_T, pwritev64, int fd, __sanitizer_iovec *iov, int iovcnt, | |
939 | OFF64_T offset) { | |
940 | void *ctx; | |
941 | COMMON_INTERCEPTOR_ENTER(ctx, pwritev64, fd, iov, iovcnt, offset); | |
942 | COMMON_INTERCEPTOR_FD_ACCESS(ctx, fd); | |
943 | if (fd >= 0) COMMON_INTERCEPTOR_FD_RELEASE(ctx, fd); | |
944 | SSIZE_T res = REAL(pwritev64)(fd, iov, iovcnt, offset); | |
945 | if (res > 0) read_iovec(ctx, iov, iovcnt, res); | |
946 | return res; | |
947 | } | |
948 | #define INIT_PWRITEV64 COMMON_INTERCEPT_FUNCTION(pwritev64) | |
949 | #else | |
950 | #define INIT_PWRITEV64 | |
951 | #endif | |
952 | ||
953 | #if SANITIZER_INTERCEPT_PRCTL | |
954 | INTERCEPTOR(int, prctl, int option, unsigned long arg2, | |
955 | unsigned long arg3, // NOLINT | |
956 | unsigned long arg4, unsigned long arg5) { // NOLINT | |
957 | void *ctx; | |
958 | COMMON_INTERCEPTOR_ENTER(ctx, prctl, option, arg2, arg3, arg4, arg5); | |
959 | static const int PR_SET_NAME = 15; | |
960 | int res = REAL(prctl(option, arg2, arg3, arg4, arg5)); | |
961 | if (option == PR_SET_NAME) { | |
962 | char buff[16]; | |
963 | internal_strncpy(buff, (char *)arg2, 15); | |
964 | buff[15] = 0; | |
965 | COMMON_INTERCEPTOR_SET_THREAD_NAME(ctx, buff); | |
966 | } | |
967 | return res; | |
968 | } | |
969 | #define INIT_PRCTL COMMON_INTERCEPT_FUNCTION(prctl) | |
970 | #else | |
971 | #define INIT_PRCTL | |
972 | #endif // SANITIZER_INTERCEPT_PRCTL | |
973 | ||
974 | #if SANITIZER_INTERCEPT_TIME | |
975 | INTERCEPTOR(unsigned long, time, unsigned long *t) { | |
976 | void *ctx; | |
977 | COMMON_INTERCEPTOR_ENTER(ctx, time, t); | |
92a42be0 SL |
978 | unsigned long local_t; |
979 | unsigned long res = REAL(time)(&local_t); | |
1a4d82fc JJ |
980 | if (t && res != (unsigned long)-1) { |
981 | COMMON_INTERCEPTOR_WRITE_RANGE(ctx, t, sizeof(*t)); | |
92a42be0 | 982 | *t = local_t; |
1a4d82fc JJ |
983 | } |
984 | return res; | |
985 | } | |
986 | #define INIT_TIME COMMON_INTERCEPT_FUNCTION(time); | |
987 | #else | |
988 | #define INIT_TIME | |
989 | #endif // SANITIZER_INTERCEPT_TIME | |
990 | ||
991 | #if SANITIZER_INTERCEPT_LOCALTIME_AND_FRIENDS | |
992 | static void unpoison_tm(void *ctx, __sanitizer_tm *tm) { | |
993 | COMMON_INTERCEPTOR_WRITE_RANGE(ctx, tm, sizeof(*tm)); | |
994 | if (tm->tm_zone) { | |
995 | // Can not use COMMON_INTERCEPTOR_WRITE_RANGE here, because tm->tm_zone | |
996 | // can point to shared memory and tsan would report a data race. | |
997 | COMMON_INTERCEPTOR_INITIALIZE_RANGE(tm->tm_zone, | |
998 | REAL(strlen(tm->tm_zone)) + 1); | |
999 | } | |
1000 | } | |
1001 | INTERCEPTOR(__sanitizer_tm *, localtime, unsigned long *timep) { | |
1002 | void *ctx; | |
1003 | COMMON_INTERCEPTOR_ENTER(ctx, localtime, timep); | |
1004 | __sanitizer_tm *res = REAL(localtime)(timep); | |
1005 | if (res) { | |
1006 | COMMON_INTERCEPTOR_READ_RANGE(ctx, timep, sizeof(*timep)); | |
1007 | unpoison_tm(ctx, res); | |
1008 | } | |
1009 | return res; | |
1010 | } | |
1011 | INTERCEPTOR(__sanitizer_tm *, localtime_r, unsigned long *timep, void *result) { | |
1012 | void *ctx; | |
1013 | COMMON_INTERCEPTOR_ENTER(ctx, localtime_r, timep, result); | |
1014 | __sanitizer_tm *res = REAL(localtime_r)(timep, result); | |
1015 | if (res) { | |
1016 | COMMON_INTERCEPTOR_READ_RANGE(ctx, timep, sizeof(*timep)); | |
1017 | unpoison_tm(ctx, res); | |
1018 | } | |
1019 | return res; | |
1020 | } | |
1021 | INTERCEPTOR(__sanitizer_tm *, gmtime, unsigned long *timep) { | |
1022 | void *ctx; | |
1023 | COMMON_INTERCEPTOR_ENTER(ctx, gmtime, timep); | |
1024 | __sanitizer_tm *res = REAL(gmtime)(timep); | |
1025 | if (res) { | |
1026 | COMMON_INTERCEPTOR_READ_RANGE(ctx, timep, sizeof(*timep)); | |
1027 | unpoison_tm(ctx, res); | |
1028 | } | |
1029 | return res; | |
1030 | } | |
1031 | INTERCEPTOR(__sanitizer_tm *, gmtime_r, unsigned long *timep, void *result) { | |
1032 | void *ctx; | |
1033 | COMMON_INTERCEPTOR_ENTER(ctx, gmtime_r, timep, result); | |
1034 | __sanitizer_tm *res = REAL(gmtime_r)(timep, result); | |
1035 | if (res) { | |
1036 | COMMON_INTERCEPTOR_READ_RANGE(ctx, timep, sizeof(*timep)); | |
1037 | unpoison_tm(ctx, res); | |
1038 | } | |
1039 | return res; | |
1040 | } | |
1041 | INTERCEPTOR(char *, ctime, unsigned long *timep) { | |
1042 | void *ctx; | |
1043 | COMMON_INTERCEPTOR_ENTER(ctx, ctime, timep); | |
92a42be0 SL |
1044 | // FIXME: under ASan the call below may write to freed memory and corrupt |
1045 | // its metadata. See | |
3157f602 | 1046 | // https://github.com/google/sanitizers/issues/321. |
1a4d82fc JJ |
1047 | char *res = REAL(ctime)(timep); |
1048 | if (res) { | |
1049 | COMMON_INTERCEPTOR_READ_RANGE(ctx, timep, sizeof(*timep)); | |
1050 | COMMON_INTERCEPTOR_WRITE_RANGE(ctx, res, REAL(strlen)(res) + 1); | |
1051 | } | |
1052 | return res; | |
1053 | } | |
1054 | INTERCEPTOR(char *, ctime_r, unsigned long *timep, char *result) { | |
1055 | void *ctx; | |
1056 | COMMON_INTERCEPTOR_ENTER(ctx, ctime_r, timep, result); | |
92a42be0 SL |
1057 | // FIXME: under ASan the call below may write to freed memory and corrupt |
1058 | // its metadata. See | |
3157f602 | 1059 | // https://github.com/google/sanitizers/issues/321. |
1a4d82fc JJ |
1060 | char *res = REAL(ctime_r)(timep, result); |
1061 | if (res) { | |
1062 | COMMON_INTERCEPTOR_READ_RANGE(ctx, timep, sizeof(*timep)); | |
1063 | COMMON_INTERCEPTOR_WRITE_RANGE(ctx, res, REAL(strlen)(res) + 1); | |
1064 | } | |
1065 | return res; | |
1066 | } | |
1067 | INTERCEPTOR(char *, asctime, __sanitizer_tm *tm) { | |
1068 | void *ctx; | |
1069 | COMMON_INTERCEPTOR_ENTER(ctx, asctime, tm); | |
92a42be0 SL |
1070 | // FIXME: under ASan the call below may write to freed memory and corrupt |
1071 | // its metadata. See | |
3157f602 | 1072 | // https://github.com/google/sanitizers/issues/321. |
1a4d82fc JJ |
1073 | char *res = REAL(asctime)(tm); |
1074 | if (res) { | |
1075 | COMMON_INTERCEPTOR_READ_RANGE(ctx, tm, sizeof(*tm)); | |
1076 | COMMON_INTERCEPTOR_WRITE_RANGE(ctx, res, REAL(strlen)(res) + 1); | |
1077 | } | |
1078 | return res; | |
1079 | } | |
1080 | INTERCEPTOR(char *, asctime_r, __sanitizer_tm *tm, char *result) { | |
1081 | void *ctx; | |
1082 | COMMON_INTERCEPTOR_ENTER(ctx, asctime_r, tm, result); | |
92a42be0 SL |
1083 | // FIXME: under ASan the call below may write to freed memory and corrupt |
1084 | // its metadata. See | |
3157f602 | 1085 | // https://github.com/google/sanitizers/issues/321. |
1a4d82fc JJ |
1086 | char *res = REAL(asctime_r)(tm, result); |
1087 | if (res) { | |
1088 | COMMON_INTERCEPTOR_READ_RANGE(ctx, tm, sizeof(*tm)); | |
1089 | COMMON_INTERCEPTOR_WRITE_RANGE(ctx, res, REAL(strlen)(res) + 1); | |
1090 | } | |
1091 | return res; | |
1092 | } | |
1093 | INTERCEPTOR(long, mktime, __sanitizer_tm *tm) { | |
1094 | void *ctx; | |
1095 | COMMON_INTERCEPTOR_ENTER(ctx, mktime, tm); | |
1096 | COMMON_INTERCEPTOR_READ_RANGE(ctx, &tm->tm_sec, sizeof(tm->tm_sec)); | |
1097 | COMMON_INTERCEPTOR_READ_RANGE(ctx, &tm->tm_min, sizeof(tm->tm_min)); | |
1098 | COMMON_INTERCEPTOR_READ_RANGE(ctx, &tm->tm_hour, sizeof(tm->tm_hour)); | |
1099 | COMMON_INTERCEPTOR_READ_RANGE(ctx, &tm->tm_mday, sizeof(tm->tm_mday)); | |
1100 | COMMON_INTERCEPTOR_READ_RANGE(ctx, &tm->tm_mon, sizeof(tm->tm_mon)); | |
1101 | COMMON_INTERCEPTOR_READ_RANGE(ctx, &tm->tm_year, sizeof(tm->tm_year)); | |
1102 | COMMON_INTERCEPTOR_READ_RANGE(ctx, &tm->tm_isdst, sizeof(tm->tm_isdst)); | |
1103 | long res = REAL(mktime)(tm); | |
1104 | if (res != -1) unpoison_tm(ctx, tm); | |
1105 | return res; | |
1106 | } | |
1107 | #define INIT_LOCALTIME_AND_FRIENDS \ | |
1108 | COMMON_INTERCEPT_FUNCTION(localtime); \ | |
1109 | COMMON_INTERCEPT_FUNCTION(localtime_r); \ | |
1110 | COMMON_INTERCEPT_FUNCTION(gmtime); \ | |
1111 | COMMON_INTERCEPT_FUNCTION(gmtime_r); \ | |
1112 | COMMON_INTERCEPT_FUNCTION(ctime); \ | |
1113 | COMMON_INTERCEPT_FUNCTION(ctime_r); \ | |
1114 | COMMON_INTERCEPT_FUNCTION(asctime); \ | |
1115 | COMMON_INTERCEPT_FUNCTION(asctime_r); \ | |
1116 | COMMON_INTERCEPT_FUNCTION(mktime); | |
1117 | #else | |
1118 | #define INIT_LOCALTIME_AND_FRIENDS | |
1119 | #endif // SANITIZER_INTERCEPT_LOCALTIME_AND_FRIENDS | |
1120 | ||
1121 | #if SANITIZER_INTERCEPT_STRPTIME | |
1122 | INTERCEPTOR(char *, strptime, char *s, char *format, __sanitizer_tm *tm) { | |
1123 | void *ctx; | |
1124 | COMMON_INTERCEPTOR_ENTER(ctx, strptime, s, format, tm); | |
1125 | if (format) | |
1126 | COMMON_INTERCEPTOR_READ_RANGE(ctx, format, REAL(strlen)(format) + 1); | |
92a42be0 SL |
1127 | // FIXME: under ASan the call below may write to freed memory and corrupt |
1128 | // its metadata. See | |
3157f602 | 1129 | // https://github.com/google/sanitizers/issues/321. |
1a4d82fc | 1130 | char *res = REAL(strptime)(s, format, tm); |
92a42be0 SL |
1131 | COMMON_INTERCEPTOR_READ_STRING(ctx, s, res ? res - s : 0); |
1132 | if (res && tm) { | |
1a4d82fc JJ |
1133 | // Do not call unpoison_tm here, because strptime does not, in fact, |
1134 | // initialize the entire struct tm. For example, tm_zone pointer is left | |
1135 | // uninitialized. | |
92a42be0 | 1136 | COMMON_INTERCEPTOR_WRITE_RANGE(ctx, tm, sizeof(*tm)); |
1a4d82fc JJ |
1137 | } |
1138 | return res; | |
1139 | } | |
1140 | #define INIT_STRPTIME COMMON_INTERCEPT_FUNCTION(strptime); | |
1141 | #else | |
1142 | #define INIT_STRPTIME | |
1143 | #endif | |
1144 | ||
1145 | #if SANITIZER_INTERCEPT_SCANF || SANITIZER_INTERCEPT_PRINTF | |
1146 | #include "sanitizer_common_interceptors_format.inc" | |
1147 | ||
1148 | #define FORMAT_INTERCEPTOR_IMPL(name, vname, ...) \ | |
1149 | { \ | |
1150 | void *ctx; \ | |
1151 | va_list ap; \ | |
1152 | va_start(ap, format); \ | |
1153 | COMMON_INTERCEPTOR_ENTER(ctx, vname, __VA_ARGS__, ap); \ | |
1154 | int res = WRAP(vname)(__VA_ARGS__, ap); \ | |
1155 | va_end(ap); \ | |
1156 | return res; \ | |
1157 | } | |
1158 | ||
1159 | #endif | |
1160 | ||
1161 | #if SANITIZER_INTERCEPT_SCANF | |
1162 | ||
1163 | #define VSCANF_INTERCEPTOR_IMPL(vname, allowGnuMalloc, ...) \ | |
1164 | { \ | |
1165 | void *ctx; \ | |
1166 | COMMON_INTERCEPTOR_ENTER(ctx, vname, __VA_ARGS__); \ | |
1167 | va_list aq; \ | |
1168 | va_copy(aq, ap); \ | |
1169 | int res = REAL(vname)(__VA_ARGS__); \ | |
1170 | if (res > 0) \ | |
1171 | scanf_common(ctx, res, allowGnuMalloc, format, aq); \ | |
1172 | va_end(aq); \ | |
1173 | return res; \ | |
1174 | } | |
1175 | ||
1176 | INTERCEPTOR(int, vscanf, const char *format, va_list ap) | |
1177 | VSCANF_INTERCEPTOR_IMPL(vscanf, true, format, ap) | |
1178 | ||
1179 | INTERCEPTOR(int, vsscanf, const char *str, const char *format, va_list ap) | |
1180 | VSCANF_INTERCEPTOR_IMPL(vsscanf, true, str, format, ap) | |
1181 | ||
1182 | INTERCEPTOR(int, vfscanf, void *stream, const char *format, va_list ap) | |
1183 | VSCANF_INTERCEPTOR_IMPL(vfscanf, true, stream, format, ap) | |
1184 | ||
1185 | #if SANITIZER_INTERCEPT_ISOC99_SCANF | |
1186 | INTERCEPTOR(int, __isoc99_vscanf, const char *format, va_list ap) | |
1187 | VSCANF_INTERCEPTOR_IMPL(__isoc99_vscanf, false, format, ap) | |
1188 | ||
1189 | INTERCEPTOR(int, __isoc99_vsscanf, const char *str, const char *format, | |
1190 | va_list ap) | |
1191 | VSCANF_INTERCEPTOR_IMPL(__isoc99_vsscanf, false, str, format, ap) | |
1192 | ||
1193 | INTERCEPTOR(int, __isoc99_vfscanf, void *stream, const char *format, va_list ap) | |
1194 | VSCANF_INTERCEPTOR_IMPL(__isoc99_vfscanf, false, stream, format, ap) | |
1195 | #endif // SANITIZER_INTERCEPT_ISOC99_SCANF | |
1196 | ||
1197 | INTERCEPTOR(int, scanf, const char *format, ...) | |
1198 | FORMAT_INTERCEPTOR_IMPL(scanf, vscanf, format) | |
1199 | ||
1200 | INTERCEPTOR(int, fscanf, void *stream, const char *format, ...) | |
1201 | FORMAT_INTERCEPTOR_IMPL(fscanf, vfscanf, stream, format) | |
1202 | ||
1203 | INTERCEPTOR(int, sscanf, const char *str, const char *format, ...) | |
1204 | FORMAT_INTERCEPTOR_IMPL(sscanf, vsscanf, str, format) | |
1205 | ||
1206 | #if SANITIZER_INTERCEPT_ISOC99_SCANF | |
1207 | INTERCEPTOR(int, __isoc99_scanf, const char *format, ...) | |
1208 | FORMAT_INTERCEPTOR_IMPL(__isoc99_scanf, __isoc99_vscanf, format) | |
1209 | ||
1210 | INTERCEPTOR(int, __isoc99_fscanf, void *stream, const char *format, ...) | |
1211 | FORMAT_INTERCEPTOR_IMPL(__isoc99_fscanf, __isoc99_vfscanf, stream, format) | |
1212 | ||
1213 | INTERCEPTOR(int, __isoc99_sscanf, const char *str, const char *format, ...) | |
1214 | FORMAT_INTERCEPTOR_IMPL(__isoc99_sscanf, __isoc99_vsscanf, str, format) | |
1215 | #endif | |
1216 | ||
1217 | #endif | |
1218 | ||
1219 | #if SANITIZER_INTERCEPT_SCANF | |
1220 | #define INIT_SCANF \ | |
1221 | COMMON_INTERCEPT_FUNCTION(scanf); \ | |
1222 | COMMON_INTERCEPT_FUNCTION(sscanf); \ | |
1223 | COMMON_INTERCEPT_FUNCTION(fscanf); \ | |
1224 | COMMON_INTERCEPT_FUNCTION(vscanf); \ | |
1225 | COMMON_INTERCEPT_FUNCTION(vsscanf); \ | |
1226 | COMMON_INTERCEPT_FUNCTION(vfscanf); | |
1227 | #else | |
1228 | #define INIT_SCANF | |
1229 | #endif | |
1230 | ||
1231 | #if SANITIZER_INTERCEPT_ISOC99_SCANF | |
1232 | #define INIT_ISOC99_SCANF \ | |
1233 | COMMON_INTERCEPT_FUNCTION(__isoc99_scanf); \ | |
1234 | COMMON_INTERCEPT_FUNCTION(__isoc99_sscanf); \ | |
1235 | COMMON_INTERCEPT_FUNCTION(__isoc99_fscanf); \ | |
1236 | COMMON_INTERCEPT_FUNCTION(__isoc99_vscanf); \ | |
1237 | COMMON_INTERCEPT_FUNCTION(__isoc99_vsscanf); \ | |
1238 | COMMON_INTERCEPT_FUNCTION(__isoc99_vfscanf); | |
1239 | #else | |
1240 | #define INIT_ISOC99_SCANF | |
1241 | #endif | |
1242 | ||
1243 | #if SANITIZER_INTERCEPT_PRINTF | |
1244 | ||
1245 | #define VPRINTF_INTERCEPTOR_ENTER(vname, ...) \ | |
1246 | void *ctx; \ | |
1247 | COMMON_INTERCEPTOR_ENTER(ctx, vname, __VA_ARGS__); \ | |
1248 | va_list aq; \ | |
1249 | va_copy(aq, ap); | |
1250 | ||
1251 | #define VPRINTF_INTERCEPTOR_RETURN() \ | |
1252 | va_end(aq); | |
1253 | ||
1254 | #define VPRINTF_INTERCEPTOR_IMPL(vname, ...) \ | |
1255 | { \ | |
1256 | VPRINTF_INTERCEPTOR_ENTER(vname, __VA_ARGS__); \ | |
1257 | if (common_flags()->check_printf) \ | |
1258 | printf_common(ctx, format, aq); \ | |
1259 | int res = REAL(vname)(__VA_ARGS__); \ | |
1260 | VPRINTF_INTERCEPTOR_RETURN(); \ | |
1261 | return res; \ | |
1262 | } | |
1263 | ||
92a42be0 SL |
1264 | // FIXME: under ASan the REAL() call below may write to freed memory and |
1265 | // corrupt its metadata. See | |
3157f602 | 1266 | // https://github.com/google/sanitizers/issues/321. |
1a4d82fc JJ |
1267 | #define VSPRINTF_INTERCEPTOR_IMPL(vname, str, ...) \ |
1268 | { \ | |
1269 | VPRINTF_INTERCEPTOR_ENTER(vname, str, __VA_ARGS__) \ | |
1270 | if (common_flags()->check_printf) { \ | |
1271 | printf_common(ctx, format, aq); \ | |
1272 | } \ | |
1273 | int res = REAL(vname)(str, __VA_ARGS__); \ | |
92a42be0 | 1274 | if (res >= 0) { \ |
1a4d82fc JJ |
1275 | COMMON_INTERCEPTOR_WRITE_RANGE(ctx, str, res + 1); \ |
1276 | } \ | |
1277 | VPRINTF_INTERCEPTOR_RETURN(); \ | |
1278 | return res; \ | |
1279 | } | |
1280 | ||
92a42be0 SL |
1281 | // FIXME: under ASan the REAL() call below may write to freed memory and |
1282 | // corrupt its metadata. See | |
3157f602 | 1283 | // https://github.com/google/sanitizers/issues/321. |
1a4d82fc JJ |
1284 | #define VSNPRINTF_INTERCEPTOR_IMPL(vname, str, size, ...) \ |
1285 | { \ | |
1286 | VPRINTF_INTERCEPTOR_ENTER(vname, str, size, __VA_ARGS__) \ | |
1287 | if (common_flags()->check_printf) { \ | |
1288 | printf_common(ctx, format, aq); \ | |
1289 | } \ | |
1290 | int res = REAL(vname)(str, size, __VA_ARGS__); \ | |
92a42be0 | 1291 | if (res >= 0) { \ |
1a4d82fc JJ |
1292 | COMMON_INTERCEPTOR_WRITE_RANGE(ctx, str, Min(size, (SIZE_T)(res + 1))); \ |
1293 | } \ | |
1294 | VPRINTF_INTERCEPTOR_RETURN(); \ | |
1295 | return res; \ | |
1296 | } | |
1297 | ||
92a42be0 SL |
1298 | // FIXME: under ASan the REAL() call below may write to freed memory and |
1299 | // corrupt its metadata. See | |
3157f602 | 1300 | // https://github.com/google/sanitizers/issues/321. |
1a4d82fc JJ |
1301 | #define VASPRINTF_INTERCEPTOR_IMPL(vname, strp, ...) \ |
1302 | { \ | |
1303 | VPRINTF_INTERCEPTOR_ENTER(vname, strp, __VA_ARGS__) \ | |
92a42be0 | 1304 | COMMON_INTERCEPTOR_WRITE_RANGE(ctx, strp, sizeof(char *)); \ |
1a4d82fc | 1305 | if (common_flags()->check_printf) { \ |
1a4d82fc JJ |
1306 | printf_common(ctx, format, aq); \ |
1307 | } \ | |
1308 | int res = REAL(vname)(strp, __VA_ARGS__); \ | |
92a42be0 | 1309 | if (res >= 0) { \ |
1a4d82fc JJ |
1310 | COMMON_INTERCEPTOR_WRITE_RANGE(ctx, *strp, res + 1); \ |
1311 | } \ | |
1312 | VPRINTF_INTERCEPTOR_RETURN(); \ | |
1313 | return res; \ | |
1314 | } | |
1315 | ||
1316 | INTERCEPTOR(int, vprintf, const char *format, va_list ap) | |
1317 | VPRINTF_INTERCEPTOR_IMPL(vprintf, format, ap) | |
1318 | ||
92a42be0 SL |
1319 | INTERCEPTOR(int, vfprintf, __sanitizer_FILE *stream, const char *format, |
1320 | va_list ap) | |
1a4d82fc JJ |
1321 | VPRINTF_INTERCEPTOR_IMPL(vfprintf, stream, format, ap) |
1322 | ||
1323 | INTERCEPTOR(int, vsnprintf, char *str, SIZE_T size, const char *format, | |
1324 | va_list ap) | |
1325 | VSNPRINTF_INTERCEPTOR_IMPL(vsnprintf, str, size, format, ap) | |
1326 | ||
92a42be0 SL |
1327 | #if SANITIZER_INTERCEPT_PRINTF_L |
1328 | INTERCEPTOR(int, vsnprintf_l, char *str, SIZE_T size, void *loc, | |
1329 | const char *format, va_list ap) | |
1330 | VSNPRINTF_INTERCEPTOR_IMPL(vsnprintf_l, str, size, loc, format, ap) | |
1331 | ||
1332 | INTERCEPTOR(int, snprintf_l, char *str, SIZE_T size, void *loc, | |
1333 | const char *format, ...) | |
1334 | FORMAT_INTERCEPTOR_IMPL(snprintf_l, vsnprintf_l, str, size, loc, format) | |
1335 | #endif // SANITIZER_INTERCEPT_PRINTF_L | |
1336 | ||
1a4d82fc JJ |
1337 | INTERCEPTOR(int, vsprintf, char *str, const char *format, va_list ap) |
1338 | VSPRINTF_INTERCEPTOR_IMPL(vsprintf, str, format, ap) | |
1339 | ||
1340 | INTERCEPTOR(int, vasprintf, char **strp, const char *format, va_list ap) | |
1341 | VASPRINTF_INTERCEPTOR_IMPL(vasprintf, strp, format, ap) | |
1342 | ||
1343 | #if SANITIZER_INTERCEPT_ISOC99_PRINTF | |
1344 | INTERCEPTOR(int, __isoc99_vprintf, const char *format, va_list ap) | |
1345 | VPRINTF_INTERCEPTOR_IMPL(__isoc99_vprintf, format, ap) | |
1346 | ||
92a42be0 SL |
1347 | INTERCEPTOR(int, __isoc99_vfprintf, __sanitizer_FILE *stream, |
1348 | const char *format, va_list ap) | |
1a4d82fc JJ |
1349 | VPRINTF_INTERCEPTOR_IMPL(__isoc99_vfprintf, stream, format, ap) |
1350 | ||
1351 | INTERCEPTOR(int, __isoc99_vsnprintf, char *str, SIZE_T size, const char *format, | |
1352 | va_list ap) | |
1353 | VSNPRINTF_INTERCEPTOR_IMPL(__isoc99_vsnprintf, str, size, format, ap) | |
1354 | ||
1355 | INTERCEPTOR(int, __isoc99_vsprintf, char *str, const char *format, | |
1356 | va_list ap) | |
1357 | VSPRINTF_INTERCEPTOR_IMPL(__isoc99_vsprintf, str, format, | |
1358 | ap) | |
1359 | ||
1360 | #endif // SANITIZER_INTERCEPT_ISOC99_PRINTF | |
1361 | ||
1362 | INTERCEPTOR(int, printf, const char *format, ...) | |
1363 | FORMAT_INTERCEPTOR_IMPL(printf, vprintf, format) | |
1364 | ||
92a42be0 | 1365 | INTERCEPTOR(int, fprintf, __sanitizer_FILE *stream, const char *format, ...) |
1a4d82fc JJ |
1366 | FORMAT_INTERCEPTOR_IMPL(fprintf, vfprintf, stream, format) |
1367 | ||
1368 | INTERCEPTOR(int, sprintf, char *str, const char *format, ...) // NOLINT | |
1369 | FORMAT_INTERCEPTOR_IMPL(sprintf, vsprintf, str, format) // NOLINT | |
1370 | ||
1371 | INTERCEPTOR(int, snprintf, char *str, SIZE_T size, const char *format, ...) | |
1372 | FORMAT_INTERCEPTOR_IMPL(snprintf, vsnprintf, str, size, format) | |
1373 | ||
1374 | INTERCEPTOR(int, asprintf, char **strp, const char *format, ...) | |
1375 | FORMAT_INTERCEPTOR_IMPL(asprintf, vasprintf, strp, format) | |
1376 | ||
1377 | #if SANITIZER_INTERCEPT_ISOC99_PRINTF | |
1378 | INTERCEPTOR(int, __isoc99_printf, const char *format, ...) | |
1379 | FORMAT_INTERCEPTOR_IMPL(__isoc99_printf, __isoc99_vprintf, format) | |
1380 | ||
92a42be0 SL |
1381 | INTERCEPTOR(int, __isoc99_fprintf, __sanitizer_FILE *stream, const char *format, |
1382 | ...) | |
1a4d82fc JJ |
1383 | FORMAT_INTERCEPTOR_IMPL(__isoc99_fprintf, __isoc99_vfprintf, stream, format) |
1384 | ||
1385 | INTERCEPTOR(int, __isoc99_sprintf, char *str, const char *format, ...) | |
1386 | FORMAT_INTERCEPTOR_IMPL(__isoc99_sprintf, __isoc99_vsprintf, str, format) | |
1387 | ||
1388 | INTERCEPTOR(int, __isoc99_snprintf, char *str, SIZE_T size, | |
1389 | const char *format, ...) | |
1390 | FORMAT_INTERCEPTOR_IMPL(__isoc99_snprintf, __isoc99_vsnprintf, str, size, | |
1391 | format) | |
1392 | ||
1393 | #endif // SANITIZER_INTERCEPT_ISOC99_PRINTF | |
1394 | ||
1395 | #endif // SANITIZER_INTERCEPT_PRINTF | |
1396 | ||
1397 | #if SANITIZER_INTERCEPT_PRINTF | |
1398 | #define INIT_PRINTF \ | |
1399 | COMMON_INTERCEPT_FUNCTION(printf); \ | |
1400 | COMMON_INTERCEPT_FUNCTION(sprintf); \ | |
1401 | COMMON_INTERCEPT_FUNCTION(snprintf); \ | |
1402 | COMMON_INTERCEPT_FUNCTION(asprintf); \ | |
1403 | COMMON_INTERCEPT_FUNCTION(fprintf); \ | |
1404 | COMMON_INTERCEPT_FUNCTION(vprintf); \ | |
1405 | COMMON_INTERCEPT_FUNCTION(vsprintf); \ | |
1406 | COMMON_INTERCEPT_FUNCTION(vsnprintf); \ | |
1407 | COMMON_INTERCEPT_FUNCTION(vasprintf); \ | |
1408 | COMMON_INTERCEPT_FUNCTION(vfprintf); | |
1409 | #else | |
1410 | #define INIT_PRINTF | |
1411 | #endif | |
1412 | ||
92a42be0 SL |
1413 | #if SANITIZER_INTERCEPT_PRINTF_L |
1414 | #define INIT_PRINTF_L \ | |
1415 | COMMON_INTERCEPT_FUNCTION(snprintf_l); \ | |
1416 | COMMON_INTERCEPT_FUNCTION(vsnprintf_l); | |
1417 | #else | |
1418 | #define INIT_PRINTF_L | |
1419 | #endif | |
1420 | ||
1a4d82fc JJ |
1421 | #if SANITIZER_INTERCEPT_ISOC99_PRINTF |
1422 | #define INIT_ISOC99_PRINTF \ | |
1423 | COMMON_INTERCEPT_FUNCTION(__isoc99_printf); \ | |
1424 | COMMON_INTERCEPT_FUNCTION(__isoc99_sprintf); \ | |
1425 | COMMON_INTERCEPT_FUNCTION(__isoc99_snprintf); \ | |
1426 | COMMON_INTERCEPT_FUNCTION(__isoc99_fprintf); \ | |
1427 | COMMON_INTERCEPT_FUNCTION(__isoc99_vprintf); \ | |
1428 | COMMON_INTERCEPT_FUNCTION(__isoc99_vsprintf); \ | |
1429 | COMMON_INTERCEPT_FUNCTION(__isoc99_vsnprintf); \ | |
1430 | COMMON_INTERCEPT_FUNCTION(__isoc99_vfprintf); | |
1431 | #else | |
1432 | #define INIT_ISOC99_PRINTF | |
1433 | #endif | |
1434 | ||
1435 | #if SANITIZER_INTERCEPT_IOCTL | |
1436 | #include "sanitizer_common_interceptors_ioctl.inc" | |
92a42be0 SL |
1437 | INTERCEPTOR(int, ioctl, int d, unsigned long request, ...) { |
1438 | // We need a frame pointer, because we call into ioctl_common_[pre|post] which | |
1439 | // can trigger a report and we need to be able to unwind through this | |
1440 | // function. On Mac in debug mode we might not have a frame pointer, because | |
1441 | // ioctl_common_[pre|post] doesn't get inlined here. | |
1442 | ENABLE_FRAME_POINTER; | |
1443 | ||
1444 | void *ctx; | |
1445 | va_list ap; | |
1446 | va_start(ap, request); | |
1447 | void *arg = va_arg(ap, void *); | |
1448 | va_end(ap); | |
1a4d82fc JJ |
1449 | COMMON_INTERCEPTOR_ENTER(ctx, ioctl, d, request, arg); |
1450 | ||
1451 | CHECK(ioctl_initialized); | |
1452 | ||
1453 | // Note: TSan does not use common flags, and they are zero-initialized. | |
1454 | // This effectively disables ioctl handling in TSan. | |
1455 | if (!common_flags()->handle_ioctl) return REAL(ioctl)(d, request, arg); | |
1456 | ||
92a42be0 SL |
1457 | // Although request is unsigned long, the rest of the interceptor uses it |
1458 | // as just "unsigned" to save space, because we know that all values fit in | |
1459 | // "unsigned" - they are compile-time constants. | |
1460 | ||
1a4d82fc JJ |
1461 | const ioctl_desc *desc = ioctl_lookup(request); |
1462 | ioctl_desc decoded_desc; | |
1463 | if (!desc) { | |
1464 | VPrintf(2, "Decoding unknown ioctl 0x%x\n", request); | |
1465 | if (!ioctl_decode(request, &decoded_desc)) | |
1466 | Printf("WARNING: failed decoding unknown ioctl 0x%x\n", request); | |
1467 | else | |
1468 | desc = &decoded_desc; | |
1469 | } | |
1470 | ||
1471 | if (desc) ioctl_common_pre(ctx, desc, d, request, arg); | |
1472 | int res = REAL(ioctl)(d, request, arg); | |
1473 | // FIXME: some ioctls have different return values for success and failure. | |
1474 | if (desc && res != -1) ioctl_common_post(ctx, desc, res, d, request, arg); | |
1475 | return res; | |
1476 | } | |
1477 | #define INIT_IOCTL \ | |
1478 | ioctl_init(); \ | |
1479 | COMMON_INTERCEPT_FUNCTION(ioctl); | |
1480 | #else | |
1481 | #define INIT_IOCTL | |
1482 | #endif | |
1483 | ||
1484 | #if SANITIZER_INTERCEPT_GETPWNAM_AND_FRIENDS || \ | |
92a42be0 SL |
1485 | SANITIZER_INTERCEPT_GETPWENT || SANITIZER_INTERCEPT_FGETPWENT || \ |
1486 | SANITIZER_INTERCEPT_GETPWENT_R || SANITIZER_INTERCEPT_GETPWNAM_R_AND_FRIENDS | |
1a4d82fc JJ |
1487 | static void unpoison_passwd(void *ctx, __sanitizer_passwd *pwd) { |
1488 | if (pwd) { | |
1489 | COMMON_INTERCEPTOR_WRITE_RANGE(ctx, pwd, sizeof(*pwd)); | |
1490 | if (pwd->pw_name) | |
1491 | COMMON_INTERCEPTOR_INITIALIZE_RANGE(pwd->pw_name, | |
1492 | REAL(strlen)(pwd->pw_name) + 1); | |
1493 | if (pwd->pw_passwd) | |
1494 | COMMON_INTERCEPTOR_INITIALIZE_RANGE(pwd->pw_passwd, | |
1495 | REAL(strlen)(pwd->pw_passwd) + 1); | |
1496 | #if !SANITIZER_ANDROID | |
1497 | if (pwd->pw_gecos) | |
1498 | COMMON_INTERCEPTOR_INITIALIZE_RANGE(pwd->pw_gecos, | |
1499 | REAL(strlen)(pwd->pw_gecos) + 1); | |
1500 | #endif | |
1501 | #if SANITIZER_MAC | |
1502 | if (pwd->pw_class) | |
1503 | COMMON_INTERCEPTOR_INITIALIZE_RANGE(pwd->pw_class, | |
1504 | REAL(strlen)(pwd->pw_class) + 1); | |
1505 | #endif | |
1506 | if (pwd->pw_dir) | |
1507 | COMMON_INTERCEPTOR_INITIALIZE_RANGE(pwd->pw_dir, | |
1508 | REAL(strlen)(pwd->pw_dir) + 1); | |
1509 | if (pwd->pw_shell) | |
1510 | COMMON_INTERCEPTOR_INITIALIZE_RANGE(pwd->pw_shell, | |
1511 | REAL(strlen)(pwd->pw_shell) + 1); | |
1512 | } | |
1513 | } | |
1514 | ||
1515 | static void unpoison_group(void *ctx, __sanitizer_group *grp) { | |
1516 | if (grp) { | |
1517 | COMMON_INTERCEPTOR_WRITE_RANGE(ctx, grp, sizeof(*grp)); | |
1518 | if (grp->gr_name) | |
1519 | COMMON_INTERCEPTOR_INITIALIZE_RANGE(grp->gr_name, | |
1520 | REAL(strlen)(grp->gr_name) + 1); | |
1521 | if (grp->gr_passwd) | |
1522 | COMMON_INTERCEPTOR_INITIALIZE_RANGE(grp->gr_passwd, | |
1523 | REAL(strlen)(grp->gr_passwd) + 1); | |
1524 | char **p = grp->gr_mem; | |
1525 | for (; *p; ++p) { | |
1526 | COMMON_INTERCEPTOR_INITIALIZE_RANGE(*p, REAL(strlen)(*p) + 1); | |
1527 | } | |
1528 | COMMON_INTERCEPTOR_INITIALIZE_RANGE(grp->gr_mem, | |
1529 | (p - grp->gr_mem + 1) * sizeof(*p)); | |
1530 | } | |
1531 | } | |
1532 | #endif // SANITIZER_INTERCEPT_GETPWNAM_AND_FRIENDS || | |
92a42be0 SL |
1533 | // SANITIZER_INTERCEPT_GETPWENT || SANITIZER_INTERCEPT_FGETPWENT || |
1534 | // SANITIZER_INTERCEPT_GETPWENT_R || | |
1535 | // SANITIZER_INTERCEPT_GETPWNAM_R_AND_FRIENDS | |
1a4d82fc JJ |
1536 | |
1537 | #if SANITIZER_INTERCEPT_GETPWNAM_AND_FRIENDS | |
1538 | INTERCEPTOR(__sanitizer_passwd *, getpwnam, const char *name) { | |
1539 | void *ctx; | |
1540 | COMMON_INTERCEPTOR_ENTER(ctx, getpwnam, name); | |
1541 | COMMON_INTERCEPTOR_READ_RANGE(ctx, name, REAL(strlen)(name) + 1); | |
1542 | __sanitizer_passwd *res = REAL(getpwnam)(name); | |
92a42be0 | 1543 | if (res) unpoison_passwd(ctx, res); |
1a4d82fc JJ |
1544 | return res; |
1545 | } | |
1546 | INTERCEPTOR(__sanitizer_passwd *, getpwuid, u32 uid) { | |
1547 | void *ctx; | |
1548 | COMMON_INTERCEPTOR_ENTER(ctx, getpwuid, uid); | |
1549 | __sanitizer_passwd *res = REAL(getpwuid)(uid); | |
92a42be0 | 1550 | if (res) unpoison_passwd(ctx, res); |
1a4d82fc JJ |
1551 | return res; |
1552 | } | |
1553 | INTERCEPTOR(__sanitizer_group *, getgrnam, const char *name) { | |
1554 | void *ctx; | |
1555 | COMMON_INTERCEPTOR_ENTER(ctx, getgrnam, name); | |
1556 | COMMON_INTERCEPTOR_READ_RANGE(ctx, name, REAL(strlen)(name) + 1); | |
1557 | __sanitizer_group *res = REAL(getgrnam)(name); | |
92a42be0 | 1558 | if (res) unpoison_group(ctx, res); |
1a4d82fc JJ |
1559 | return res; |
1560 | } | |
1561 | INTERCEPTOR(__sanitizer_group *, getgrgid, u32 gid) { | |
1562 | void *ctx; | |
1563 | COMMON_INTERCEPTOR_ENTER(ctx, getgrgid, gid); | |
1564 | __sanitizer_group *res = REAL(getgrgid)(gid); | |
92a42be0 | 1565 | if (res) unpoison_group(ctx, res); |
1a4d82fc JJ |
1566 | return res; |
1567 | } | |
1568 | #define INIT_GETPWNAM_AND_FRIENDS \ | |
1569 | COMMON_INTERCEPT_FUNCTION(getpwnam); \ | |
1570 | COMMON_INTERCEPT_FUNCTION(getpwuid); \ | |
1571 | COMMON_INTERCEPT_FUNCTION(getgrnam); \ | |
1572 | COMMON_INTERCEPT_FUNCTION(getgrgid); | |
1573 | #else | |
1574 | #define INIT_GETPWNAM_AND_FRIENDS | |
1575 | #endif | |
1576 | ||
1577 | #if SANITIZER_INTERCEPT_GETPWNAM_R_AND_FRIENDS | |
1578 | INTERCEPTOR(int, getpwnam_r, const char *name, __sanitizer_passwd *pwd, | |
1579 | char *buf, SIZE_T buflen, __sanitizer_passwd **result) { | |
1580 | void *ctx; | |
1581 | COMMON_INTERCEPTOR_ENTER(ctx, getpwnam_r, name, pwd, buf, buflen, result); | |
1582 | COMMON_INTERCEPTOR_READ_RANGE(ctx, name, REAL(strlen)(name) + 1); | |
92a42be0 SL |
1583 | // FIXME: under ASan the call below may write to freed memory and corrupt |
1584 | // its metadata. See | |
3157f602 | 1585 | // https://github.com/google/sanitizers/issues/321. |
1a4d82fc JJ |
1586 | int res = REAL(getpwnam_r)(name, pwd, buf, buflen, result); |
1587 | if (!res) { | |
92a42be0 | 1588 | if (result && *result) unpoison_passwd(ctx, *result); |
1a4d82fc JJ |
1589 | COMMON_INTERCEPTOR_WRITE_RANGE(ctx, buf, buflen); |
1590 | } | |
1591 | if (result) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, result, sizeof(*result)); | |
1592 | return res; | |
1593 | } | |
1594 | INTERCEPTOR(int, getpwuid_r, u32 uid, __sanitizer_passwd *pwd, char *buf, | |
1595 | SIZE_T buflen, __sanitizer_passwd **result) { | |
1596 | void *ctx; | |
1597 | COMMON_INTERCEPTOR_ENTER(ctx, getpwuid_r, uid, pwd, buf, buflen, result); | |
92a42be0 SL |
1598 | // FIXME: under ASan the call below may write to freed memory and corrupt |
1599 | // its metadata. See | |
3157f602 | 1600 | // https://github.com/google/sanitizers/issues/321. |
1a4d82fc JJ |
1601 | int res = REAL(getpwuid_r)(uid, pwd, buf, buflen, result); |
1602 | if (!res) { | |
92a42be0 | 1603 | if (result && *result) unpoison_passwd(ctx, *result); |
1a4d82fc JJ |
1604 | COMMON_INTERCEPTOR_WRITE_RANGE(ctx, buf, buflen); |
1605 | } | |
1606 | if (result) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, result, sizeof(*result)); | |
1607 | return res; | |
1608 | } | |
1609 | INTERCEPTOR(int, getgrnam_r, const char *name, __sanitizer_group *grp, | |
1610 | char *buf, SIZE_T buflen, __sanitizer_group **result) { | |
1611 | void *ctx; | |
1612 | COMMON_INTERCEPTOR_ENTER(ctx, getgrnam_r, name, grp, buf, buflen, result); | |
1613 | COMMON_INTERCEPTOR_READ_RANGE(ctx, name, REAL(strlen)(name) + 1); | |
92a42be0 SL |
1614 | // FIXME: under ASan the call below may write to freed memory and corrupt |
1615 | // its metadata. See | |
3157f602 | 1616 | // https://github.com/google/sanitizers/issues/321. |
1a4d82fc JJ |
1617 | int res = REAL(getgrnam_r)(name, grp, buf, buflen, result); |
1618 | if (!res) { | |
92a42be0 | 1619 | if (result && *result) unpoison_group(ctx, *result); |
1a4d82fc JJ |
1620 | COMMON_INTERCEPTOR_WRITE_RANGE(ctx, buf, buflen); |
1621 | } | |
1622 | if (result) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, result, sizeof(*result)); | |
1623 | return res; | |
1624 | } | |
1625 | INTERCEPTOR(int, getgrgid_r, u32 gid, __sanitizer_group *grp, char *buf, | |
1626 | SIZE_T buflen, __sanitizer_group **result) { | |
1627 | void *ctx; | |
1628 | COMMON_INTERCEPTOR_ENTER(ctx, getgrgid_r, gid, grp, buf, buflen, result); | |
92a42be0 SL |
1629 | // FIXME: under ASan the call below may write to freed memory and corrupt |
1630 | // its metadata. See | |
3157f602 | 1631 | // https://github.com/google/sanitizers/issues/321. |
1a4d82fc JJ |
1632 | int res = REAL(getgrgid_r)(gid, grp, buf, buflen, result); |
1633 | if (!res) { | |
92a42be0 | 1634 | if (result && *result) unpoison_group(ctx, *result); |
1a4d82fc JJ |
1635 | COMMON_INTERCEPTOR_WRITE_RANGE(ctx, buf, buflen); |
1636 | } | |
1637 | if (result) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, result, sizeof(*result)); | |
1638 | return res; | |
1639 | } | |
1640 | #define INIT_GETPWNAM_R_AND_FRIENDS \ | |
1641 | COMMON_INTERCEPT_FUNCTION(getpwnam_r); \ | |
1642 | COMMON_INTERCEPT_FUNCTION(getpwuid_r); \ | |
1643 | COMMON_INTERCEPT_FUNCTION(getgrnam_r); \ | |
1644 | COMMON_INTERCEPT_FUNCTION(getgrgid_r); | |
1645 | #else | |
1646 | #define INIT_GETPWNAM_R_AND_FRIENDS | |
1647 | #endif | |
1648 | ||
1649 | #if SANITIZER_INTERCEPT_GETPWENT | |
1650 | INTERCEPTOR(__sanitizer_passwd *, getpwent, int dummy) { | |
1651 | void *ctx; | |
1652 | COMMON_INTERCEPTOR_ENTER(ctx, getpwent, dummy); | |
1653 | __sanitizer_passwd *res = REAL(getpwent)(dummy); | |
92a42be0 | 1654 | if (res) unpoison_passwd(ctx, res); |
1a4d82fc JJ |
1655 | return res; |
1656 | } | |
1657 | INTERCEPTOR(__sanitizer_group *, getgrent, int dummy) { | |
1658 | void *ctx; | |
1659 | COMMON_INTERCEPTOR_ENTER(ctx, getgrent, dummy); | |
1660 | __sanitizer_group *res = REAL(getgrent)(dummy); | |
92a42be0 | 1661 | if (res) unpoison_group(ctx, res);; |
1a4d82fc JJ |
1662 | return res; |
1663 | } | |
1664 | #define INIT_GETPWENT \ | |
1665 | COMMON_INTERCEPT_FUNCTION(getpwent); \ | |
1666 | COMMON_INTERCEPT_FUNCTION(getgrent); | |
1667 | #else | |
1668 | #define INIT_GETPWENT | |
1669 | #endif | |
1670 | ||
1671 | #if SANITIZER_INTERCEPT_FGETPWENT | |
1672 | INTERCEPTOR(__sanitizer_passwd *, fgetpwent, void *fp) { | |
1673 | void *ctx; | |
1674 | COMMON_INTERCEPTOR_ENTER(ctx, fgetpwent, fp); | |
1675 | __sanitizer_passwd *res = REAL(fgetpwent)(fp); | |
92a42be0 | 1676 | if (res) unpoison_passwd(ctx, res); |
1a4d82fc JJ |
1677 | return res; |
1678 | } | |
1679 | INTERCEPTOR(__sanitizer_group *, fgetgrent, void *fp) { | |
1680 | void *ctx; | |
1681 | COMMON_INTERCEPTOR_ENTER(ctx, fgetgrent, fp); | |
1682 | __sanitizer_group *res = REAL(fgetgrent)(fp); | |
92a42be0 | 1683 | if (res) unpoison_group(ctx, res); |
1a4d82fc JJ |
1684 | return res; |
1685 | } | |
1686 | #define INIT_FGETPWENT \ | |
1687 | COMMON_INTERCEPT_FUNCTION(fgetpwent); \ | |
1688 | COMMON_INTERCEPT_FUNCTION(fgetgrent); | |
1689 | #else | |
1690 | #define INIT_FGETPWENT | |
1691 | #endif | |
1692 | ||
1693 | #if SANITIZER_INTERCEPT_GETPWENT_R | |
1694 | INTERCEPTOR(int, getpwent_r, __sanitizer_passwd *pwbuf, char *buf, | |
1695 | SIZE_T buflen, __sanitizer_passwd **pwbufp) { | |
1696 | void *ctx; | |
1697 | COMMON_INTERCEPTOR_ENTER(ctx, getpwent_r, pwbuf, buf, buflen, pwbufp); | |
92a42be0 SL |
1698 | // FIXME: under ASan the call below may write to freed memory and corrupt |
1699 | // its metadata. See | |
3157f602 | 1700 | // https://github.com/google/sanitizers/issues/321. |
1a4d82fc JJ |
1701 | int res = REAL(getpwent_r)(pwbuf, buf, buflen, pwbufp); |
1702 | if (!res) { | |
92a42be0 | 1703 | if (pwbufp && *pwbufp) unpoison_passwd(ctx, *pwbufp); |
1a4d82fc JJ |
1704 | COMMON_INTERCEPTOR_WRITE_RANGE(ctx, buf, buflen); |
1705 | } | |
1706 | if (pwbufp) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, pwbufp, sizeof(*pwbufp)); | |
1707 | return res; | |
1708 | } | |
1709 | INTERCEPTOR(int, fgetpwent_r, void *fp, __sanitizer_passwd *pwbuf, char *buf, | |
1710 | SIZE_T buflen, __sanitizer_passwd **pwbufp) { | |
1711 | void *ctx; | |
1712 | COMMON_INTERCEPTOR_ENTER(ctx, fgetpwent_r, fp, pwbuf, buf, buflen, pwbufp); | |
92a42be0 SL |
1713 | // FIXME: under ASan the call below may write to freed memory and corrupt |
1714 | // its metadata. See | |
3157f602 | 1715 | // https://github.com/google/sanitizers/issues/321. |
1a4d82fc JJ |
1716 | int res = REAL(fgetpwent_r)(fp, pwbuf, buf, buflen, pwbufp); |
1717 | if (!res) { | |
92a42be0 | 1718 | if (pwbufp && *pwbufp) unpoison_passwd(ctx, *pwbufp); |
1a4d82fc JJ |
1719 | COMMON_INTERCEPTOR_WRITE_RANGE(ctx, buf, buflen); |
1720 | } | |
1721 | if (pwbufp) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, pwbufp, sizeof(*pwbufp)); | |
1722 | return res; | |
1723 | } | |
1724 | INTERCEPTOR(int, getgrent_r, __sanitizer_group *pwbuf, char *buf, SIZE_T buflen, | |
1725 | __sanitizer_group **pwbufp) { | |
1726 | void *ctx; | |
1727 | COMMON_INTERCEPTOR_ENTER(ctx, getgrent_r, pwbuf, buf, buflen, pwbufp); | |
92a42be0 SL |
1728 | // FIXME: under ASan the call below may write to freed memory and corrupt |
1729 | // its metadata. See | |
3157f602 | 1730 | // https://github.com/google/sanitizers/issues/321. |
1a4d82fc JJ |
1731 | int res = REAL(getgrent_r)(pwbuf, buf, buflen, pwbufp); |
1732 | if (!res) { | |
92a42be0 | 1733 | if (pwbufp && *pwbufp) unpoison_group(ctx, *pwbufp); |
1a4d82fc JJ |
1734 | COMMON_INTERCEPTOR_WRITE_RANGE(ctx, buf, buflen); |
1735 | } | |
1736 | if (pwbufp) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, pwbufp, sizeof(*pwbufp)); | |
1737 | return res; | |
1738 | } | |
1739 | INTERCEPTOR(int, fgetgrent_r, void *fp, __sanitizer_group *pwbuf, char *buf, | |
1740 | SIZE_T buflen, __sanitizer_group **pwbufp) { | |
1741 | void *ctx; | |
1742 | COMMON_INTERCEPTOR_ENTER(ctx, fgetgrent_r, fp, pwbuf, buf, buflen, pwbufp); | |
92a42be0 SL |
1743 | // FIXME: under ASan the call below may write to freed memory and corrupt |
1744 | // its metadata. See | |
3157f602 | 1745 | // https://github.com/google/sanitizers/issues/321. |
1a4d82fc JJ |
1746 | int res = REAL(fgetgrent_r)(fp, pwbuf, buf, buflen, pwbufp); |
1747 | if (!res) { | |
92a42be0 | 1748 | if (pwbufp && *pwbufp) unpoison_group(ctx, *pwbufp); |
1a4d82fc JJ |
1749 | COMMON_INTERCEPTOR_WRITE_RANGE(ctx, buf, buflen); |
1750 | } | |
1751 | if (pwbufp) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, pwbufp, sizeof(*pwbufp)); | |
1752 | return res; | |
1753 | } | |
1754 | #define INIT_GETPWENT_R \ | |
1755 | COMMON_INTERCEPT_FUNCTION(getpwent_r); \ | |
1756 | COMMON_INTERCEPT_FUNCTION(fgetpwent_r); \ | |
1757 | COMMON_INTERCEPT_FUNCTION(getgrent_r); \ | |
1758 | COMMON_INTERCEPT_FUNCTION(fgetgrent_r); | |
1759 | #else | |
1760 | #define INIT_GETPWENT_R | |
1761 | #endif | |
1762 | ||
1763 | #if SANITIZER_INTERCEPT_SETPWENT | |
1764 | // The only thing these interceptors do is disable any nested interceptors. | |
1765 | // These functions may open nss modules and call uninstrumented functions from | |
1766 | // them, and we don't want things like strlen() to trigger. | |
1767 | INTERCEPTOR(void, setpwent, int dummy) { | |
1768 | void *ctx; | |
1769 | COMMON_INTERCEPTOR_ENTER(ctx, setpwent, dummy); | |
1770 | REAL(setpwent)(dummy); | |
1771 | } | |
1772 | INTERCEPTOR(void, endpwent, int dummy) { | |
1773 | void *ctx; | |
1774 | COMMON_INTERCEPTOR_ENTER(ctx, endpwent, dummy); | |
1775 | REAL(endpwent)(dummy); | |
1776 | } | |
1777 | INTERCEPTOR(void, setgrent, int dummy) { | |
1778 | void *ctx; | |
1779 | COMMON_INTERCEPTOR_ENTER(ctx, setgrent, dummy); | |
1780 | REAL(setgrent)(dummy); | |
1781 | } | |
1782 | INTERCEPTOR(void, endgrent, int dummy) { | |
1783 | void *ctx; | |
1784 | COMMON_INTERCEPTOR_ENTER(ctx, endgrent, dummy); | |
1785 | REAL(endgrent)(dummy); | |
1786 | } | |
1787 | #define INIT_SETPWENT \ | |
1788 | COMMON_INTERCEPT_FUNCTION(setpwent); \ | |
1789 | COMMON_INTERCEPT_FUNCTION(endpwent); \ | |
1790 | COMMON_INTERCEPT_FUNCTION(setgrent); \ | |
1791 | COMMON_INTERCEPT_FUNCTION(endgrent); | |
1792 | #else | |
1793 | #define INIT_SETPWENT | |
1794 | #endif | |
1795 | ||
1796 | #if SANITIZER_INTERCEPT_CLOCK_GETTIME | |
1797 | INTERCEPTOR(int, clock_getres, u32 clk_id, void *tp) { | |
1798 | void *ctx; | |
1799 | COMMON_INTERCEPTOR_ENTER(ctx, clock_getres, clk_id, tp); | |
92a42be0 SL |
1800 | // FIXME: under ASan the call below may write to freed memory and corrupt |
1801 | // its metadata. See | |
3157f602 | 1802 | // https://github.com/google/sanitizers/issues/321. |
1a4d82fc JJ |
1803 | int res = REAL(clock_getres)(clk_id, tp); |
1804 | if (!res && tp) { | |
1805 | COMMON_INTERCEPTOR_WRITE_RANGE(ctx, tp, struct_timespec_sz); | |
1806 | } | |
1807 | return res; | |
1808 | } | |
1809 | INTERCEPTOR(int, clock_gettime, u32 clk_id, void *tp) { | |
1810 | void *ctx; | |
1811 | COMMON_INTERCEPTOR_ENTER(ctx, clock_gettime, clk_id, tp); | |
92a42be0 SL |
1812 | // FIXME: under ASan the call below may write to freed memory and corrupt |
1813 | // its metadata. See | |
3157f602 | 1814 | // https://github.com/google/sanitizers/issues/321. |
1a4d82fc JJ |
1815 | int res = REAL(clock_gettime)(clk_id, tp); |
1816 | if (!res) { | |
1817 | COMMON_INTERCEPTOR_WRITE_RANGE(ctx, tp, struct_timespec_sz); | |
1818 | } | |
1819 | return res; | |
1820 | } | |
1821 | INTERCEPTOR(int, clock_settime, u32 clk_id, const void *tp) { | |
1822 | void *ctx; | |
1823 | COMMON_INTERCEPTOR_ENTER(ctx, clock_settime, clk_id, tp); | |
1824 | COMMON_INTERCEPTOR_READ_RANGE(ctx, tp, struct_timespec_sz); | |
1825 | return REAL(clock_settime)(clk_id, tp); | |
1826 | } | |
1827 | #define INIT_CLOCK_GETTIME \ | |
1828 | COMMON_INTERCEPT_FUNCTION(clock_getres); \ | |
1829 | COMMON_INTERCEPT_FUNCTION(clock_gettime); \ | |
1830 | COMMON_INTERCEPT_FUNCTION(clock_settime); | |
1831 | #else | |
1832 | #define INIT_CLOCK_GETTIME | |
1833 | #endif | |
1834 | ||
1835 | #if SANITIZER_INTERCEPT_GETITIMER | |
1836 | INTERCEPTOR(int, getitimer, int which, void *curr_value) { | |
1837 | void *ctx; | |
1838 | COMMON_INTERCEPTOR_ENTER(ctx, getitimer, which, curr_value); | |
92a42be0 SL |
1839 | // FIXME: under ASan the call below may write to freed memory and corrupt |
1840 | // its metadata. See | |
3157f602 | 1841 | // https://github.com/google/sanitizers/issues/321. |
1a4d82fc JJ |
1842 | int res = REAL(getitimer)(which, curr_value); |
1843 | if (!res && curr_value) { | |
1844 | COMMON_INTERCEPTOR_WRITE_RANGE(ctx, curr_value, struct_itimerval_sz); | |
1845 | } | |
1846 | return res; | |
1847 | } | |
1848 | INTERCEPTOR(int, setitimer, int which, const void *new_value, void *old_value) { | |
1849 | void *ctx; | |
1850 | COMMON_INTERCEPTOR_ENTER(ctx, setitimer, which, new_value, old_value); | |
1851 | if (new_value) | |
1852 | COMMON_INTERCEPTOR_READ_RANGE(ctx, new_value, struct_itimerval_sz); | |
92a42be0 SL |
1853 | // FIXME: under ASan the call below may write to freed memory and corrupt |
1854 | // its metadata. See | |
3157f602 | 1855 | // https://github.com/google/sanitizers/issues/321. |
1a4d82fc JJ |
1856 | int res = REAL(setitimer)(which, new_value, old_value); |
1857 | if (!res && old_value) { | |
1858 | COMMON_INTERCEPTOR_WRITE_RANGE(ctx, old_value, struct_itimerval_sz); | |
1859 | } | |
1860 | return res; | |
1861 | } | |
1862 | #define INIT_GETITIMER \ | |
1863 | COMMON_INTERCEPT_FUNCTION(getitimer); \ | |
1864 | COMMON_INTERCEPT_FUNCTION(setitimer); | |
1865 | #else | |
1866 | #define INIT_GETITIMER | |
1867 | #endif | |
1868 | ||
1869 | #if SANITIZER_INTERCEPT_GLOB | |
1870 | static void unpoison_glob_t(void *ctx, __sanitizer_glob_t *pglob) { | |
1871 | COMMON_INTERCEPTOR_WRITE_RANGE(ctx, pglob, sizeof(*pglob)); | |
1872 | // +1 for NULL pointer at the end. | |
1873 | if (pglob->gl_pathv) | |
1874 | COMMON_INTERCEPTOR_WRITE_RANGE( | |
1875 | ctx, pglob->gl_pathv, (pglob->gl_pathc + 1) * sizeof(*pglob->gl_pathv)); | |
1876 | for (SIZE_T i = 0; i < pglob->gl_pathc; ++i) { | |
1877 | char *p = pglob->gl_pathv[i]; | |
1878 | COMMON_INTERCEPTOR_WRITE_RANGE(ctx, p, REAL(strlen)(p) + 1); | |
1879 | } | |
1880 | } | |
1881 | ||
1882 | static THREADLOCAL __sanitizer_glob_t *pglob_copy; | |
1883 | ||
1884 | static void wrapped_gl_closedir(void *dir) { | |
1885 | COMMON_INTERCEPTOR_UNPOISON_PARAM(1); | |
92a42be0 | 1886 | pglob_copy->gl_closedir(dir); |
1a4d82fc JJ |
1887 | } |
1888 | ||
1889 | static void *wrapped_gl_readdir(void *dir) { | |
1890 | COMMON_INTERCEPTOR_UNPOISON_PARAM(1); | |
92a42be0 | 1891 | return pglob_copy->gl_readdir(dir); |
1a4d82fc JJ |
1892 | } |
1893 | ||
1894 | static void *wrapped_gl_opendir(const char *s) { | |
1895 | COMMON_INTERCEPTOR_UNPOISON_PARAM(1); | |
1896 | COMMON_INTERCEPTOR_INITIALIZE_RANGE(s, REAL(strlen)(s) + 1); | |
92a42be0 | 1897 | return pglob_copy->gl_opendir(s); |
1a4d82fc JJ |
1898 | } |
1899 | ||
1900 | static int wrapped_gl_lstat(const char *s, void *st) { | |
1901 | COMMON_INTERCEPTOR_UNPOISON_PARAM(2); | |
1902 | COMMON_INTERCEPTOR_INITIALIZE_RANGE(s, REAL(strlen)(s) + 1); | |
92a42be0 | 1903 | return pglob_copy->gl_lstat(s, st); |
1a4d82fc JJ |
1904 | } |
1905 | ||
1906 | static int wrapped_gl_stat(const char *s, void *st) { | |
1907 | COMMON_INTERCEPTOR_UNPOISON_PARAM(2); | |
1908 | COMMON_INTERCEPTOR_INITIALIZE_RANGE(s, REAL(strlen)(s) + 1); | |
92a42be0 | 1909 | return pglob_copy->gl_stat(s, st); |
1a4d82fc JJ |
1910 | } |
1911 | ||
3157f602 XL |
1912 | static const __sanitizer_glob_t kGlobCopy = { |
1913 | 0, 0, 0, | |
1914 | 0, wrapped_gl_closedir, wrapped_gl_readdir, | |
1915 | wrapped_gl_opendir, wrapped_gl_lstat, wrapped_gl_stat}; | |
1916 | ||
1a4d82fc JJ |
1917 | INTERCEPTOR(int, glob, const char *pattern, int flags, |
1918 | int (*errfunc)(const char *epath, int eerrno), | |
1919 | __sanitizer_glob_t *pglob) { | |
1920 | void *ctx; | |
1921 | COMMON_INTERCEPTOR_ENTER(ctx, glob, pattern, flags, errfunc, pglob); | |
92a42be0 | 1922 | COMMON_INTERCEPTOR_READ_STRING(ctx, pattern, 0); |
3157f602 XL |
1923 | __sanitizer_glob_t glob_copy; |
1924 | internal_memcpy(&glob_copy, &kGlobCopy, sizeof(glob_copy)); | |
1a4d82fc JJ |
1925 | if (flags & glob_altdirfunc) { |
1926 | Swap(pglob->gl_closedir, glob_copy.gl_closedir); | |
1927 | Swap(pglob->gl_readdir, glob_copy.gl_readdir); | |
1928 | Swap(pglob->gl_opendir, glob_copy.gl_opendir); | |
1929 | Swap(pglob->gl_lstat, glob_copy.gl_lstat); | |
1930 | Swap(pglob->gl_stat, glob_copy.gl_stat); | |
1931 | pglob_copy = &glob_copy; | |
1932 | } | |
1933 | int res = REAL(glob)(pattern, flags, errfunc, pglob); | |
1934 | if (flags & glob_altdirfunc) { | |
1935 | Swap(pglob->gl_closedir, glob_copy.gl_closedir); | |
1936 | Swap(pglob->gl_readdir, glob_copy.gl_readdir); | |
1937 | Swap(pglob->gl_opendir, glob_copy.gl_opendir); | |
1938 | Swap(pglob->gl_lstat, glob_copy.gl_lstat); | |
1939 | Swap(pglob->gl_stat, glob_copy.gl_stat); | |
1940 | } | |
1941 | pglob_copy = 0; | |
1942 | if ((!res || res == glob_nomatch) && pglob) unpoison_glob_t(ctx, pglob); | |
1943 | return res; | |
1944 | } | |
1945 | ||
1946 | INTERCEPTOR(int, glob64, const char *pattern, int flags, | |
1947 | int (*errfunc)(const char *epath, int eerrno), | |
1948 | __sanitizer_glob_t *pglob) { | |
1949 | void *ctx; | |
1950 | COMMON_INTERCEPTOR_ENTER(ctx, glob64, pattern, flags, errfunc, pglob); | |
92a42be0 | 1951 | COMMON_INTERCEPTOR_READ_STRING(ctx, pattern, 0); |
3157f602 XL |
1952 | __sanitizer_glob_t glob_copy; |
1953 | internal_memcpy(&glob_copy, &kGlobCopy, sizeof(glob_copy)); | |
1a4d82fc JJ |
1954 | if (flags & glob_altdirfunc) { |
1955 | Swap(pglob->gl_closedir, glob_copy.gl_closedir); | |
1956 | Swap(pglob->gl_readdir, glob_copy.gl_readdir); | |
1957 | Swap(pglob->gl_opendir, glob_copy.gl_opendir); | |
1958 | Swap(pglob->gl_lstat, glob_copy.gl_lstat); | |
1959 | Swap(pglob->gl_stat, glob_copy.gl_stat); | |
1960 | pglob_copy = &glob_copy; | |
1961 | } | |
1962 | int res = REAL(glob64)(pattern, flags, errfunc, pglob); | |
1963 | if (flags & glob_altdirfunc) { | |
1964 | Swap(pglob->gl_closedir, glob_copy.gl_closedir); | |
1965 | Swap(pglob->gl_readdir, glob_copy.gl_readdir); | |
1966 | Swap(pglob->gl_opendir, glob_copy.gl_opendir); | |
1967 | Swap(pglob->gl_lstat, glob_copy.gl_lstat); | |
1968 | Swap(pglob->gl_stat, glob_copy.gl_stat); | |
1969 | } | |
1970 | pglob_copy = 0; | |
1971 | if ((!res || res == glob_nomatch) && pglob) unpoison_glob_t(ctx, pglob); | |
1972 | return res; | |
1973 | } | |
1974 | #define INIT_GLOB \ | |
1975 | COMMON_INTERCEPT_FUNCTION(glob); \ | |
1976 | COMMON_INTERCEPT_FUNCTION(glob64); | |
1977 | #else // SANITIZER_INTERCEPT_GLOB | |
1978 | #define INIT_GLOB | |
1979 | #endif // SANITIZER_INTERCEPT_GLOB | |
1980 | ||
1981 | #if SANITIZER_INTERCEPT_WAIT | |
1982 | // According to sys/wait.h, wait(), waitid(), waitpid() may have symbol version | |
1983 | // suffixes on Darwin. See the declaration of INTERCEPTOR_WITH_SUFFIX for | |
1984 | // details. | |
1985 | INTERCEPTOR_WITH_SUFFIX(int, wait, int *status) { | |
1986 | void *ctx; | |
1987 | COMMON_INTERCEPTOR_ENTER(ctx, wait, status); | |
92a42be0 SL |
1988 | // FIXME: under ASan the call below may write to freed memory and corrupt |
1989 | // its metadata. See | |
3157f602 | 1990 | // https://github.com/google/sanitizers/issues/321. |
1a4d82fc JJ |
1991 | int res = REAL(wait)(status); |
1992 | if (res != -1 && status) | |
1993 | COMMON_INTERCEPTOR_WRITE_RANGE(ctx, status, sizeof(*status)); | |
1994 | return res; | |
1995 | } | |
92a42be0 SL |
1996 | // On FreeBSD id_t is always 64-bit wide. |
1997 | #if SANITIZER_FREEBSD && (SANITIZER_WORDSIZE == 32) | |
1998 | INTERCEPTOR_WITH_SUFFIX(int, waitid, int idtype, long long id, void *infop, | |
1999 | int options) { | |
2000 | #else | |
1a4d82fc JJ |
2001 | INTERCEPTOR_WITH_SUFFIX(int, waitid, int idtype, int id, void *infop, |
2002 | int options) { | |
92a42be0 | 2003 | #endif |
1a4d82fc JJ |
2004 | void *ctx; |
2005 | COMMON_INTERCEPTOR_ENTER(ctx, waitid, idtype, id, infop, options); | |
92a42be0 SL |
2006 | // FIXME: under ASan the call below may write to freed memory and corrupt |
2007 | // its metadata. See | |
3157f602 | 2008 | // https://github.com/google/sanitizers/issues/321. |
1a4d82fc JJ |
2009 | int res = REAL(waitid)(idtype, id, infop, options); |
2010 | if (res != -1 && infop) | |
2011 | COMMON_INTERCEPTOR_WRITE_RANGE(ctx, infop, siginfo_t_sz); | |
2012 | return res; | |
2013 | } | |
2014 | INTERCEPTOR_WITH_SUFFIX(int, waitpid, int pid, int *status, int options) { | |
2015 | void *ctx; | |
2016 | COMMON_INTERCEPTOR_ENTER(ctx, waitpid, pid, status, options); | |
92a42be0 SL |
2017 | // FIXME: under ASan the call below may write to freed memory and corrupt |
2018 | // its metadata. See | |
3157f602 | 2019 | // https://github.com/google/sanitizers/issues/321. |
1a4d82fc JJ |
2020 | int res = REAL(waitpid)(pid, status, options); |
2021 | if (res != -1 && status) | |
2022 | COMMON_INTERCEPTOR_WRITE_RANGE(ctx, status, sizeof(*status)); | |
2023 | return res; | |
2024 | } | |
2025 | INTERCEPTOR(int, wait3, int *status, int options, void *rusage) { | |
2026 | void *ctx; | |
2027 | COMMON_INTERCEPTOR_ENTER(ctx, wait3, status, options, rusage); | |
92a42be0 SL |
2028 | // FIXME: under ASan the call below may write to freed memory and corrupt |
2029 | // its metadata. See | |
3157f602 | 2030 | // https://github.com/google/sanitizers/issues/321. |
1a4d82fc JJ |
2031 | int res = REAL(wait3)(status, options, rusage); |
2032 | if (res != -1) { | |
2033 | if (status) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, status, sizeof(*status)); | |
2034 | if (rusage) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, rusage, struct_rusage_sz); | |
2035 | } | |
2036 | return res; | |
2037 | } | |
2038 | #if SANITIZER_ANDROID | |
2039 | INTERCEPTOR(int, __wait4, int pid, int *status, int options, void *rusage) { | |
2040 | void *ctx; | |
2041 | COMMON_INTERCEPTOR_ENTER(ctx, __wait4, pid, status, options, rusage); | |
92a42be0 SL |
2042 | // FIXME: under ASan the call below may write to freed memory and corrupt |
2043 | // its metadata. See | |
3157f602 | 2044 | // https://github.com/google/sanitizers/issues/321. |
1a4d82fc JJ |
2045 | int res = REAL(__wait4)(pid, status, options, rusage); |
2046 | if (res != -1) { | |
2047 | if (status) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, status, sizeof(*status)); | |
2048 | if (rusage) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, rusage, struct_rusage_sz); | |
2049 | } | |
2050 | return res; | |
2051 | } | |
2052 | #define INIT_WAIT4 COMMON_INTERCEPT_FUNCTION(__wait4); | |
2053 | #else | |
2054 | INTERCEPTOR(int, wait4, int pid, int *status, int options, void *rusage) { | |
2055 | void *ctx; | |
2056 | COMMON_INTERCEPTOR_ENTER(ctx, wait4, pid, status, options, rusage); | |
92a42be0 SL |
2057 | // FIXME: under ASan the call below may write to freed memory and corrupt |
2058 | // its metadata. See | |
3157f602 | 2059 | // https://github.com/google/sanitizers/issues/321. |
1a4d82fc JJ |
2060 | int res = REAL(wait4)(pid, status, options, rusage); |
2061 | if (res != -1) { | |
2062 | if (status) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, status, sizeof(*status)); | |
2063 | if (rusage) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, rusage, struct_rusage_sz); | |
2064 | } | |
2065 | return res; | |
2066 | } | |
2067 | #define INIT_WAIT4 COMMON_INTERCEPT_FUNCTION(wait4); | |
2068 | #endif // SANITIZER_ANDROID | |
2069 | #define INIT_WAIT \ | |
2070 | COMMON_INTERCEPT_FUNCTION(wait); \ | |
2071 | COMMON_INTERCEPT_FUNCTION(waitid); \ | |
2072 | COMMON_INTERCEPT_FUNCTION(waitpid); \ | |
2073 | COMMON_INTERCEPT_FUNCTION(wait3); | |
2074 | #else | |
2075 | #define INIT_WAIT | |
2076 | #define INIT_WAIT4 | |
2077 | #endif | |
2078 | ||
2079 | #if SANITIZER_INTERCEPT_INET | |
2080 | INTERCEPTOR(char *, inet_ntop, int af, const void *src, char *dst, u32 size) { | |
2081 | void *ctx; | |
2082 | COMMON_INTERCEPTOR_ENTER(ctx, inet_ntop, af, src, dst, size); | |
2083 | uptr sz = __sanitizer_in_addr_sz(af); | |
2084 | if (sz) COMMON_INTERCEPTOR_READ_RANGE(ctx, src, sz); | |
2085 | // FIXME: figure out read size based on the address family. | |
92a42be0 SL |
2086 | // FIXME: under ASan the call below may write to freed memory and corrupt |
2087 | // its metadata. See | |
3157f602 | 2088 | // https://github.com/google/sanitizers/issues/321. |
1a4d82fc JJ |
2089 | char *res = REAL(inet_ntop)(af, src, dst, size); |
2090 | if (res) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, res, REAL(strlen)(res) + 1); | |
2091 | return res; | |
2092 | } | |
2093 | INTERCEPTOR(int, inet_pton, int af, const char *src, void *dst) { | |
2094 | void *ctx; | |
2095 | COMMON_INTERCEPTOR_ENTER(ctx, inet_pton, af, src, dst); | |
92a42be0 | 2096 | COMMON_INTERCEPTOR_READ_STRING(ctx, src, 0); |
1a4d82fc | 2097 | // FIXME: figure out read size based on the address family. |
92a42be0 SL |
2098 | // FIXME: under ASan the call below may write to freed memory and corrupt |
2099 | // its metadata. See | |
3157f602 | 2100 | // https://github.com/google/sanitizers/issues/321. |
1a4d82fc JJ |
2101 | int res = REAL(inet_pton)(af, src, dst); |
2102 | if (res == 1) { | |
2103 | uptr sz = __sanitizer_in_addr_sz(af); | |
2104 | if (sz) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, dst, sz); | |
2105 | } | |
2106 | return res; | |
2107 | } | |
2108 | #define INIT_INET \ | |
2109 | COMMON_INTERCEPT_FUNCTION(inet_ntop); \ | |
2110 | COMMON_INTERCEPT_FUNCTION(inet_pton); | |
2111 | #else | |
2112 | #define INIT_INET | |
2113 | #endif | |
2114 | ||
2115 | #if SANITIZER_INTERCEPT_INET | |
2116 | INTERCEPTOR(int, inet_aton, const char *cp, void *dst) { | |
2117 | void *ctx; | |
2118 | COMMON_INTERCEPTOR_ENTER(ctx, inet_aton, cp, dst); | |
2119 | if (cp) COMMON_INTERCEPTOR_READ_RANGE(ctx, cp, REAL(strlen)(cp) + 1); | |
92a42be0 SL |
2120 | // FIXME: under ASan the call below may write to freed memory and corrupt |
2121 | // its metadata. See | |
3157f602 | 2122 | // https://github.com/google/sanitizers/issues/321. |
1a4d82fc JJ |
2123 | int res = REAL(inet_aton)(cp, dst); |
2124 | if (res != 0) { | |
2125 | uptr sz = __sanitizer_in_addr_sz(af_inet); | |
2126 | if (sz) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, dst, sz); | |
2127 | } | |
2128 | return res; | |
2129 | } | |
2130 | #define INIT_INET_ATON COMMON_INTERCEPT_FUNCTION(inet_aton); | |
2131 | #else | |
2132 | #define INIT_INET_ATON | |
2133 | #endif | |
2134 | ||
2135 | #if SANITIZER_INTERCEPT_PTHREAD_GETSCHEDPARAM | |
2136 | INTERCEPTOR(int, pthread_getschedparam, uptr thread, int *policy, int *param) { | |
2137 | void *ctx; | |
2138 | COMMON_INTERCEPTOR_ENTER(ctx, pthread_getschedparam, thread, policy, param); | |
92a42be0 SL |
2139 | // FIXME: under ASan the call below may write to freed memory and corrupt |
2140 | // its metadata. See | |
3157f602 | 2141 | // https://github.com/google/sanitizers/issues/321. |
1a4d82fc JJ |
2142 | int res = REAL(pthread_getschedparam)(thread, policy, param); |
2143 | if (res == 0) { | |
2144 | if (policy) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, policy, sizeof(*policy)); | |
2145 | if (param) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, param, sizeof(*param)); | |
2146 | } | |
2147 | return res; | |
2148 | } | |
2149 | #define INIT_PTHREAD_GETSCHEDPARAM \ | |
2150 | COMMON_INTERCEPT_FUNCTION(pthread_getschedparam); | |
2151 | #else | |
2152 | #define INIT_PTHREAD_GETSCHEDPARAM | |
2153 | #endif | |
2154 | ||
2155 | #if SANITIZER_INTERCEPT_GETADDRINFO | |
2156 | INTERCEPTOR(int, getaddrinfo, char *node, char *service, | |
2157 | struct __sanitizer_addrinfo *hints, | |
2158 | struct __sanitizer_addrinfo **out) { | |
2159 | void *ctx; | |
2160 | COMMON_INTERCEPTOR_ENTER(ctx, getaddrinfo, node, service, hints, out); | |
2161 | if (node) COMMON_INTERCEPTOR_READ_RANGE(ctx, node, REAL(strlen)(node) + 1); | |
2162 | if (service) | |
2163 | COMMON_INTERCEPTOR_READ_RANGE(ctx, service, REAL(strlen)(service) + 1); | |
2164 | if (hints) | |
2165 | COMMON_INTERCEPTOR_READ_RANGE(ctx, hints, sizeof(__sanitizer_addrinfo)); | |
92a42be0 SL |
2166 | // FIXME: under ASan the call below may write to freed memory and corrupt |
2167 | // its metadata. See | |
3157f602 | 2168 | // https://github.com/google/sanitizers/issues/321. |
1a4d82fc JJ |
2169 | int res = REAL(getaddrinfo)(node, service, hints, out); |
2170 | if (res == 0 && out) { | |
2171 | COMMON_INTERCEPTOR_WRITE_RANGE(ctx, out, sizeof(*out)); | |
2172 | struct __sanitizer_addrinfo *p = *out; | |
2173 | while (p) { | |
2174 | COMMON_INTERCEPTOR_WRITE_RANGE(ctx, p, sizeof(*p)); | |
2175 | if (p->ai_addr) | |
2176 | COMMON_INTERCEPTOR_WRITE_RANGE(ctx, p->ai_addr, p->ai_addrlen); | |
2177 | if (p->ai_canonname) | |
2178 | COMMON_INTERCEPTOR_WRITE_RANGE(ctx, p->ai_canonname, | |
2179 | REAL(strlen)(p->ai_canonname) + 1); | |
2180 | p = p->ai_next; | |
2181 | } | |
2182 | } | |
2183 | return res; | |
2184 | } | |
2185 | #define INIT_GETADDRINFO COMMON_INTERCEPT_FUNCTION(getaddrinfo); | |
2186 | #else | |
2187 | #define INIT_GETADDRINFO | |
2188 | #endif | |
2189 | ||
2190 | #if SANITIZER_INTERCEPT_GETNAMEINFO | |
2191 | INTERCEPTOR(int, getnameinfo, void *sockaddr, unsigned salen, char *host, | |
2192 | unsigned hostlen, char *serv, unsigned servlen, int flags) { | |
2193 | void *ctx; | |
2194 | COMMON_INTERCEPTOR_ENTER(ctx, getnameinfo, sockaddr, salen, host, hostlen, | |
2195 | serv, servlen, flags); | |
2196 | // FIXME: consider adding READ_RANGE(sockaddr, salen) | |
2197 | // There is padding in in_addr that may make this too noisy | |
92a42be0 SL |
2198 | // FIXME: under ASan the call below may write to freed memory and corrupt |
2199 | // its metadata. See | |
3157f602 | 2200 | // https://github.com/google/sanitizers/issues/321. |
1a4d82fc JJ |
2201 | int res = |
2202 | REAL(getnameinfo)(sockaddr, salen, host, hostlen, serv, servlen, flags); | |
2203 | if (res == 0) { | |
2204 | if (host && hostlen) | |
2205 | COMMON_INTERCEPTOR_WRITE_RANGE(ctx, host, REAL(strlen)(host) + 1); | |
2206 | if (serv && servlen) | |
2207 | COMMON_INTERCEPTOR_WRITE_RANGE(ctx, serv, REAL(strlen)(serv) + 1); | |
2208 | } | |
2209 | return res; | |
2210 | } | |
2211 | #define INIT_GETNAMEINFO COMMON_INTERCEPT_FUNCTION(getnameinfo); | |
2212 | #else | |
2213 | #define INIT_GETNAMEINFO | |
2214 | #endif | |
2215 | ||
2216 | #if SANITIZER_INTERCEPT_GETSOCKNAME | |
2217 | INTERCEPTOR(int, getsockname, int sock_fd, void *addr, int *addrlen) { | |
2218 | void *ctx; | |
2219 | COMMON_INTERCEPTOR_ENTER(ctx, getsockname, sock_fd, addr, addrlen); | |
2220 | COMMON_INTERCEPTOR_READ_RANGE(ctx, addrlen, sizeof(*addrlen)); | |
2221 | int addrlen_in = *addrlen; | |
92a42be0 SL |
2222 | // FIXME: under ASan the call below may write to freed memory and corrupt |
2223 | // its metadata. See | |
3157f602 | 2224 | // https://github.com/google/sanitizers/issues/321. |
1a4d82fc JJ |
2225 | int res = REAL(getsockname)(sock_fd, addr, addrlen); |
2226 | if (res == 0) { | |
2227 | COMMON_INTERCEPTOR_WRITE_RANGE(ctx, addr, Min(addrlen_in, *addrlen)); | |
2228 | } | |
2229 | return res; | |
2230 | } | |
2231 | #define INIT_GETSOCKNAME COMMON_INTERCEPT_FUNCTION(getsockname); | |
2232 | #else | |
2233 | #define INIT_GETSOCKNAME | |
2234 | #endif | |
2235 | ||
2236 | #if SANITIZER_INTERCEPT_GETHOSTBYNAME || SANITIZER_INTERCEPT_GETHOSTBYNAME_R | |
2237 | static void write_hostent(void *ctx, struct __sanitizer_hostent *h) { | |
2238 | COMMON_INTERCEPTOR_WRITE_RANGE(ctx, h, sizeof(__sanitizer_hostent)); | |
2239 | if (h->h_name) | |
2240 | COMMON_INTERCEPTOR_WRITE_RANGE(ctx, h->h_name, REAL(strlen)(h->h_name) + 1); | |
2241 | char **p = h->h_aliases; | |
2242 | while (*p) { | |
2243 | COMMON_INTERCEPTOR_WRITE_RANGE(ctx, *p, REAL(strlen)(*p) + 1); | |
2244 | ++p; | |
2245 | } | |
2246 | COMMON_INTERCEPTOR_WRITE_RANGE( | |
2247 | ctx, h->h_aliases, (p - h->h_aliases + 1) * sizeof(*h->h_aliases)); | |
2248 | p = h->h_addr_list; | |
2249 | while (*p) { | |
2250 | COMMON_INTERCEPTOR_WRITE_RANGE(ctx, *p, h->h_length); | |
2251 | ++p; | |
2252 | } | |
2253 | COMMON_INTERCEPTOR_WRITE_RANGE( | |
2254 | ctx, h->h_addr_list, (p - h->h_addr_list + 1) * sizeof(*h->h_addr_list)); | |
2255 | } | |
2256 | #endif | |
2257 | ||
2258 | #if SANITIZER_INTERCEPT_GETHOSTBYNAME | |
2259 | INTERCEPTOR(struct __sanitizer_hostent *, gethostbyname, char *name) { | |
2260 | void *ctx; | |
2261 | COMMON_INTERCEPTOR_ENTER(ctx, gethostbyname, name); | |
2262 | struct __sanitizer_hostent *res = REAL(gethostbyname)(name); | |
2263 | if (res) write_hostent(ctx, res); | |
2264 | return res; | |
2265 | } | |
2266 | ||
2267 | INTERCEPTOR(struct __sanitizer_hostent *, gethostbyaddr, void *addr, int len, | |
2268 | int type) { | |
2269 | void *ctx; | |
2270 | COMMON_INTERCEPTOR_ENTER(ctx, gethostbyaddr, addr, len, type); | |
2271 | COMMON_INTERCEPTOR_READ_RANGE(ctx, addr, len); | |
2272 | struct __sanitizer_hostent *res = REAL(gethostbyaddr)(addr, len, type); | |
2273 | if (res) write_hostent(ctx, res); | |
2274 | return res; | |
2275 | } | |
2276 | ||
2277 | INTERCEPTOR(struct __sanitizer_hostent *, gethostent, int fake) { | |
2278 | void *ctx; | |
2279 | COMMON_INTERCEPTOR_ENTER(ctx, gethostent, fake); | |
2280 | struct __sanitizer_hostent *res = REAL(gethostent)(fake); | |
2281 | if (res) write_hostent(ctx, res); | |
2282 | return res; | |
2283 | } | |
2284 | ||
2285 | INTERCEPTOR(struct __sanitizer_hostent *, gethostbyname2, char *name, int af) { | |
2286 | void *ctx; | |
2287 | COMMON_INTERCEPTOR_ENTER(ctx, gethostbyname2, name, af); | |
2288 | struct __sanitizer_hostent *res = REAL(gethostbyname2)(name, af); | |
2289 | if (res) write_hostent(ctx, res); | |
2290 | return res; | |
2291 | } | |
2292 | #define INIT_GETHOSTBYNAME \ | |
2293 | COMMON_INTERCEPT_FUNCTION(gethostent); \ | |
2294 | COMMON_INTERCEPT_FUNCTION(gethostbyaddr); \ | |
2295 | COMMON_INTERCEPT_FUNCTION(gethostbyname); \ | |
2296 | COMMON_INTERCEPT_FUNCTION(gethostbyname2); | |
2297 | #else | |
2298 | #define INIT_GETHOSTBYNAME | |
2299 | #endif | |
2300 | ||
2301 | #if SANITIZER_INTERCEPT_GETHOSTBYNAME_R | |
92a42be0 SL |
2302 | INTERCEPTOR(int, gethostbyname_r, char *name, struct __sanitizer_hostent *ret, |
2303 | char *buf, SIZE_T buflen, __sanitizer_hostent **result, | |
2304 | int *h_errnop) { | |
2305 | void *ctx; | |
2306 | COMMON_INTERCEPTOR_ENTER(ctx, gethostbyname_r, name, ret, buf, buflen, result, | |
2307 | h_errnop); | |
2308 | // FIXME: under ASan the call below may write to freed memory and corrupt | |
2309 | // its metadata. See | |
3157f602 | 2310 | // https://github.com/google/sanitizers/issues/321. |
92a42be0 SL |
2311 | int res = REAL(gethostbyname_r)(name, ret, buf, buflen, result, h_errnop); |
2312 | if (result) { | |
2313 | COMMON_INTERCEPTOR_WRITE_RANGE(ctx, result, sizeof(*result)); | |
2314 | if (res == 0 && *result) write_hostent(ctx, *result); | |
2315 | } | |
2316 | if (h_errnop) | |
2317 | COMMON_INTERCEPTOR_WRITE_RANGE(ctx, h_errnop, sizeof(*h_errnop)); | |
2318 | return res; | |
2319 | } | |
2320 | #define INIT_GETHOSTBYNAME_R COMMON_INTERCEPT_FUNCTION(gethostbyname_r); | |
2321 | #else | |
2322 | #define INIT_GETHOSTBYNAME_R | |
2323 | #endif | |
2324 | ||
2325 | #if SANITIZER_INTERCEPT_GETHOSTENT_R | |
1a4d82fc JJ |
2326 | INTERCEPTOR(int, gethostent_r, struct __sanitizer_hostent *ret, char *buf, |
2327 | SIZE_T buflen, __sanitizer_hostent **result, int *h_errnop) { | |
2328 | void *ctx; | |
2329 | COMMON_INTERCEPTOR_ENTER(ctx, gethostent_r, ret, buf, buflen, result, | |
2330 | h_errnop); | |
92a42be0 SL |
2331 | // FIXME: under ASan the call below may write to freed memory and corrupt |
2332 | // its metadata. See | |
3157f602 | 2333 | // https://github.com/google/sanitizers/issues/321. |
1a4d82fc JJ |
2334 | int res = REAL(gethostent_r)(ret, buf, buflen, result, h_errnop); |
2335 | if (result) { | |
2336 | COMMON_INTERCEPTOR_WRITE_RANGE(ctx, result, sizeof(*result)); | |
2337 | if (res == 0 && *result) write_hostent(ctx, *result); | |
2338 | } | |
2339 | if (h_errnop) | |
2340 | COMMON_INTERCEPTOR_WRITE_RANGE(ctx, h_errnop, sizeof(*h_errnop)); | |
2341 | return res; | |
2342 | } | |
92a42be0 SL |
2343 | #define INIT_GETHOSTENT_R \ |
2344 | COMMON_INTERCEPT_FUNCTION(gethostent_r); | |
2345 | #else | |
2346 | #define INIT_GETHOSTENT_R | |
2347 | #endif | |
1a4d82fc | 2348 | |
92a42be0 | 2349 | #if SANITIZER_INTERCEPT_GETHOSTBYADDR_R |
1a4d82fc JJ |
2350 | INTERCEPTOR(int, gethostbyaddr_r, void *addr, int len, int type, |
2351 | struct __sanitizer_hostent *ret, char *buf, SIZE_T buflen, | |
2352 | __sanitizer_hostent **result, int *h_errnop) { | |
2353 | void *ctx; | |
2354 | COMMON_INTERCEPTOR_ENTER(ctx, gethostbyaddr_r, addr, len, type, ret, buf, | |
2355 | buflen, result, h_errnop); | |
2356 | COMMON_INTERCEPTOR_READ_RANGE(ctx, addr, len); | |
92a42be0 SL |
2357 | // FIXME: under ASan the call below may write to freed memory and corrupt |
2358 | // its metadata. See | |
3157f602 | 2359 | // https://github.com/google/sanitizers/issues/321. |
1a4d82fc JJ |
2360 | int res = REAL(gethostbyaddr_r)(addr, len, type, ret, buf, buflen, result, |
2361 | h_errnop); | |
2362 | if (result) { | |
2363 | COMMON_INTERCEPTOR_WRITE_RANGE(ctx, result, sizeof(*result)); | |
2364 | if (res == 0 && *result) write_hostent(ctx, *result); | |
2365 | } | |
2366 | if (h_errnop) | |
2367 | COMMON_INTERCEPTOR_WRITE_RANGE(ctx, h_errnop, sizeof(*h_errnop)); | |
2368 | return res; | |
2369 | } | |
92a42be0 SL |
2370 | #define INIT_GETHOSTBYADDR_R \ |
2371 | COMMON_INTERCEPT_FUNCTION(gethostbyaddr_r); | |
2372 | #else | |
2373 | #define INIT_GETHOSTBYADDR_R | |
2374 | #endif | |
1a4d82fc | 2375 | |
92a42be0 | 2376 | #if SANITIZER_INTERCEPT_GETHOSTBYNAME2_R |
1a4d82fc JJ |
2377 | INTERCEPTOR(int, gethostbyname2_r, char *name, int af, |
2378 | struct __sanitizer_hostent *ret, char *buf, SIZE_T buflen, | |
2379 | __sanitizer_hostent **result, int *h_errnop) { | |
2380 | void *ctx; | |
2381 | COMMON_INTERCEPTOR_ENTER(ctx, gethostbyname2_r, name, af, ret, buf, buflen, | |
2382 | result, h_errnop); | |
92a42be0 SL |
2383 | // FIXME: under ASan the call below may write to freed memory and corrupt |
2384 | // its metadata. See | |
3157f602 | 2385 | // https://github.com/google/sanitizers/issues/321. |
1a4d82fc JJ |
2386 | int res = |
2387 | REAL(gethostbyname2_r)(name, af, ret, buf, buflen, result, h_errnop); | |
2388 | if (result) { | |
2389 | COMMON_INTERCEPTOR_WRITE_RANGE(ctx, result, sizeof(*result)); | |
2390 | if (res == 0 && *result) write_hostent(ctx, *result); | |
2391 | } | |
2392 | if (h_errnop) | |
2393 | COMMON_INTERCEPTOR_WRITE_RANGE(ctx, h_errnop, sizeof(*h_errnop)); | |
2394 | return res; | |
2395 | } | |
92a42be0 | 2396 | #define INIT_GETHOSTBYNAME2_R \ |
1a4d82fc JJ |
2397 | COMMON_INTERCEPT_FUNCTION(gethostbyname2_r); |
2398 | #else | |
92a42be0 | 2399 | #define INIT_GETHOSTBYNAME2_R |
1a4d82fc JJ |
2400 | #endif |
2401 | ||
2402 | #if SANITIZER_INTERCEPT_GETSOCKOPT | |
2403 | INTERCEPTOR(int, getsockopt, int sockfd, int level, int optname, void *optval, | |
2404 | int *optlen) { | |
2405 | void *ctx; | |
2406 | COMMON_INTERCEPTOR_ENTER(ctx, getsockopt, sockfd, level, optname, optval, | |
2407 | optlen); | |
2408 | if (optlen) COMMON_INTERCEPTOR_READ_RANGE(ctx, optlen, sizeof(*optlen)); | |
92a42be0 SL |
2409 | // FIXME: under ASan the call below may write to freed memory and corrupt |
2410 | // its metadata. See | |
3157f602 | 2411 | // https://github.com/google/sanitizers/issues/321. |
1a4d82fc JJ |
2412 | int res = REAL(getsockopt)(sockfd, level, optname, optval, optlen); |
2413 | if (res == 0) | |
2414 | if (optval && optlen) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, optval, *optlen); | |
2415 | return res; | |
2416 | } | |
2417 | #define INIT_GETSOCKOPT COMMON_INTERCEPT_FUNCTION(getsockopt); | |
2418 | #else | |
2419 | #define INIT_GETSOCKOPT | |
2420 | #endif | |
2421 | ||
2422 | #if SANITIZER_INTERCEPT_ACCEPT | |
2423 | INTERCEPTOR(int, accept, int fd, void *addr, unsigned *addrlen) { | |
2424 | void *ctx; | |
2425 | COMMON_INTERCEPTOR_ENTER(ctx, accept, fd, addr, addrlen); | |
92a42be0 | 2426 | unsigned addrlen0 = 0; |
1a4d82fc JJ |
2427 | if (addrlen) { |
2428 | COMMON_INTERCEPTOR_READ_RANGE(ctx, addrlen, sizeof(*addrlen)); | |
2429 | addrlen0 = *addrlen; | |
2430 | } | |
2431 | int fd2 = REAL(accept)(fd, addr, addrlen); | |
2432 | if (fd2 >= 0) { | |
2433 | if (fd >= 0) COMMON_INTERCEPTOR_FD_SOCKET_ACCEPT(ctx, fd, fd2); | |
2434 | if (addr && addrlen) | |
2435 | COMMON_INTERCEPTOR_WRITE_RANGE(ctx, addr, Min(*addrlen, addrlen0)); | |
2436 | } | |
2437 | return fd2; | |
2438 | } | |
2439 | #define INIT_ACCEPT COMMON_INTERCEPT_FUNCTION(accept); | |
2440 | #else | |
2441 | #define INIT_ACCEPT | |
2442 | #endif | |
2443 | ||
2444 | #if SANITIZER_INTERCEPT_ACCEPT4 | |
2445 | INTERCEPTOR(int, accept4, int fd, void *addr, unsigned *addrlen, int f) { | |
2446 | void *ctx; | |
2447 | COMMON_INTERCEPTOR_ENTER(ctx, accept4, fd, addr, addrlen, f); | |
92a42be0 | 2448 | unsigned addrlen0 = 0; |
1a4d82fc JJ |
2449 | if (addrlen) { |
2450 | COMMON_INTERCEPTOR_READ_RANGE(ctx, addrlen, sizeof(*addrlen)); | |
2451 | addrlen0 = *addrlen; | |
2452 | } | |
92a42be0 SL |
2453 | // FIXME: under ASan the call below may write to freed memory and corrupt |
2454 | // its metadata. See | |
3157f602 | 2455 | // https://github.com/google/sanitizers/issues/321. |
1a4d82fc JJ |
2456 | int fd2 = REAL(accept4)(fd, addr, addrlen, f); |
2457 | if (fd2 >= 0) { | |
2458 | if (fd >= 0) COMMON_INTERCEPTOR_FD_SOCKET_ACCEPT(ctx, fd, fd2); | |
2459 | if (addr && addrlen) | |
2460 | COMMON_INTERCEPTOR_WRITE_RANGE(ctx, addr, Min(*addrlen, addrlen0)); | |
2461 | } | |
2462 | return fd2; | |
2463 | } | |
2464 | #define INIT_ACCEPT4 COMMON_INTERCEPT_FUNCTION(accept4); | |
2465 | #else | |
2466 | #define INIT_ACCEPT4 | |
2467 | #endif | |
2468 | ||
2469 | #if SANITIZER_INTERCEPT_MODF | |
2470 | INTERCEPTOR(double, modf, double x, double *iptr) { | |
2471 | void *ctx; | |
2472 | COMMON_INTERCEPTOR_ENTER(ctx, modf, x, iptr); | |
92a42be0 SL |
2473 | // FIXME: under ASan the call below may write to freed memory and corrupt |
2474 | // its metadata. See | |
3157f602 | 2475 | // https://github.com/google/sanitizers/issues/321. |
1a4d82fc JJ |
2476 | double res = REAL(modf)(x, iptr); |
2477 | if (iptr) { | |
2478 | COMMON_INTERCEPTOR_WRITE_RANGE(ctx, iptr, sizeof(*iptr)); | |
2479 | } | |
2480 | return res; | |
2481 | } | |
2482 | INTERCEPTOR(float, modff, float x, float *iptr) { | |
2483 | void *ctx; | |
2484 | COMMON_INTERCEPTOR_ENTER(ctx, modff, x, iptr); | |
92a42be0 SL |
2485 | // FIXME: under ASan the call below may write to freed memory and corrupt |
2486 | // its metadata. See | |
3157f602 | 2487 | // https://github.com/google/sanitizers/issues/321. |
1a4d82fc JJ |
2488 | float res = REAL(modff)(x, iptr); |
2489 | if (iptr) { | |
2490 | COMMON_INTERCEPTOR_WRITE_RANGE(ctx, iptr, sizeof(*iptr)); | |
2491 | } | |
2492 | return res; | |
2493 | } | |
2494 | INTERCEPTOR(long double, modfl, long double x, long double *iptr) { | |
2495 | void *ctx; | |
2496 | COMMON_INTERCEPTOR_ENTER(ctx, modfl, x, iptr); | |
92a42be0 SL |
2497 | // FIXME: under ASan the call below may write to freed memory and corrupt |
2498 | // its metadata. See | |
3157f602 | 2499 | // https://github.com/google/sanitizers/issues/321. |
1a4d82fc JJ |
2500 | long double res = REAL(modfl)(x, iptr); |
2501 | if (iptr) { | |
2502 | COMMON_INTERCEPTOR_WRITE_RANGE(ctx, iptr, sizeof(*iptr)); | |
2503 | } | |
2504 | return res; | |
2505 | } | |
2506 | #define INIT_MODF \ | |
2507 | COMMON_INTERCEPT_FUNCTION(modf); \ | |
2508 | COMMON_INTERCEPT_FUNCTION(modff); \ | |
5bcae85e | 2509 | COMMON_INTERCEPT_FUNCTION_LDBL(modfl); |
1a4d82fc JJ |
2510 | #else |
2511 | #define INIT_MODF | |
2512 | #endif | |
2513 | ||
2514 | #if SANITIZER_INTERCEPT_RECVMSG | |
2515 | static void write_msghdr(void *ctx, struct __sanitizer_msghdr *msg, | |
2516 | SSIZE_T maxlen) { | |
2517 | COMMON_INTERCEPTOR_WRITE_RANGE(ctx, msg, sizeof(*msg)); | |
2518 | if (msg->msg_name && msg->msg_namelen) | |
2519 | COMMON_INTERCEPTOR_WRITE_RANGE(ctx, msg->msg_name, msg->msg_namelen); | |
2520 | if (msg->msg_iov && msg->msg_iovlen) | |
2521 | COMMON_INTERCEPTOR_WRITE_RANGE(ctx, msg->msg_iov, | |
2522 | sizeof(*msg->msg_iov) * msg->msg_iovlen); | |
2523 | write_iovec(ctx, msg->msg_iov, msg->msg_iovlen, maxlen); | |
2524 | if (msg->msg_control && msg->msg_controllen) | |
2525 | COMMON_INTERCEPTOR_WRITE_RANGE(ctx, msg->msg_control, msg->msg_controllen); | |
2526 | } | |
2527 | ||
2528 | INTERCEPTOR(SSIZE_T, recvmsg, int fd, struct __sanitizer_msghdr *msg, | |
2529 | int flags) { | |
2530 | void *ctx; | |
2531 | COMMON_INTERCEPTOR_ENTER(ctx, recvmsg, fd, msg, flags); | |
92a42be0 SL |
2532 | // FIXME: under ASan the call below may write to freed memory and corrupt |
2533 | // its metadata. See | |
3157f602 | 2534 | // https://github.com/google/sanitizers/issues/321. |
1a4d82fc JJ |
2535 | SSIZE_T res = REAL(recvmsg)(fd, msg, flags); |
2536 | if (res >= 0) { | |
2537 | if (fd >= 0) COMMON_INTERCEPTOR_FD_ACQUIRE(ctx, fd); | |
2538 | if (msg) { | |
2539 | write_msghdr(ctx, msg, res); | |
2540 | COMMON_INTERCEPTOR_HANDLE_RECVMSG(ctx, msg); | |
2541 | } | |
2542 | } | |
2543 | return res; | |
2544 | } | |
2545 | #define INIT_RECVMSG COMMON_INTERCEPT_FUNCTION(recvmsg); | |
2546 | #else | |
2547 | #define INIT_RECVMSG | |
2548 | #endif | |
2549 | ||
5bcae85e SL |
2550 | #if SANITIZER_INTERCEPT_SENDMSG |
2551 | static void read_msghdr_control(void *ctx, void *control, uptr controllen) { | |
2552 | const unsigned kCmsgDataOffset = | |
2553 | RoundUpTo(sizeof(__sanitizer_cmsghdr), sizeof(uptr)); | |
2554 | ||
2555 | char *p = (char *)control; | |
2556 | char *const control_end = p + controllen; | |
2557 | while (true) { | |
2558 | if (p + sizeof(__sanitizer_cmsghdr) > control_end) break; | |
2559 | __sanitizer_cmsghdr *cmsg = (__sanitizer_cmsghdr *)p; | |
2560 | COMMON_INTERCEPTOR_READ_RANGE(ctx, &cmsg->cmsg_len, sizeof(cmsg->cmsg_len)); | |
2561 | ||
2562 | if (p + RoundUpTo(cmsg->cmsg_len, sizeof(uptr)) > control_end) break; | |
2563 | ||
2564 | COMMON_INTERCEPTOR_READ_RANGE(ctx, &cmsg->cmsg_level, | |
2565 | sizeof(cmsg->cmsg_level)); | |
2566 | COMMON_INTERCEPTOR_READ_RANGE(ctx, &cmsg->cmsg_type, | |
2567 | sizeof(cmsg->cmsg_type)); | |
2568 | ||
2569 | if (cmsg->cmsg_len > kCmsgDataOffset) { | |
2570 | char *data = p + kCmsgDataOffset; | |
2571 | unsigned data_len = cmsg->cmsg_len - kCmsgDataOffset; | |
2572 | if (data_len > 0) COMMON_INTERCEPTOR_READ_RANGE(ctx, data, data_len); | |
2573 | } | |
2574 | ||
2575 | p += RoundUpTo(cmsg->cmsg_len, sizeof(uptr)); | |
2576 | } | |
2577 | } | |
2578 | ||
2579 | static void read_msghdr(void *ctx, struct __sanitizer_msghdr *msg, | |
2580 | SSIZE_T maxlen) { | |
2581 | #define R(f) \ | |
2582 | COMMON_INTERCEPTOR_READ_RANGE(ctx, &msg->msg_##f, sizeof(msg->msg_##f)) | |
2583 | R(name); | |
2584 | R(namelen); | |
2585 | R(iov); | |
2586 | R(iovlen); | |
2587 | R(control); | |
2588 | R(controllen); | |
2589 | R(flags); | |
2590 | #undef R | |
2591 | if (msg->msg_name && msg->msg_namelen) | |
2592 | COMMON_INTERCEPTOR_READ_RANGE(ctx, msg->msg_name, msg->msg_namelen); | |
2593 | if (msg->msg_iov && msg->msg_iovlen) | |
2594 | COMMON_INTERCEPTOR_READ_RANGE(ctx, msg->msg_iov, | |
2595 | sizeof(*msg->msg_iov) * msg->msg_iovlen); | |
2596 | read_iovec(ctx, msg->msg_iov, msg->msg_iovlen, maxlen); | |
2597 | if (msg->msg_control && msg->msg_controllen) | |
2598 | read_msghdr_control(ctx, msg->msg_control, msg->msg_controllen); | |
2599 | } | |
2600 | ||
2601 | INTERCEPTOR(SSIZE_T, sendmsg, int fd, struct __sanitizer_msghdr *msg, | |
2602 | int flags) { | |
2603 | void *ctx; | |
2604 | COMMON_INTERCEPTOR_ENTER(ctx, sendmsg, fd, msg, flags); | |
2605 | if (fd >= 0) { | |
2606 | COMMON_INTERCEPTOR_FD_ACCESS(ctx, fd); | |
2607 | COMMON_INTERCEPTOR_FD_RELEASE(ctx, fd); | |
2608 | } | |
2609 | SSIZE_T res = REAL(sendmsg)(fd, msg, flags); | |
2610 | if (common_flags()->intercept_send && res >= 0 && msg) | |
2611 | read_msghdr(ctx, msg, res); | |
2612 | return res; | |
2613 | } | |
2614 | #define INIT_SENDMSG COMMON_INTERCEPT_FUNCTION(sendmsg); | |
2615 | #else | |
2616 | #define INIT_SENDMSG | |
2617 | #endif | |
2618 | ||
1a4d82fc JJ |
2619 | #if SANITIZER_INTERCEPT_GETPEERNAME |
2620 | INTERCEPTOR(int, getpeername, int sockfd, void *addr, unsigned *addrlen) { | |
2621 | void *ctx; | |
2622 | COMMON_INTERCEPTOR_ENTER(ctx, getpeername, sockfd, addr, addrlen); | |
2623 | unsigned addr_sz; | |
2624 | if (addrlen) addr_sz = *addrlen; | |
92a42be0 SL |
2625 | // FIXME: under ASan the call below may write to freed memory and corrupt |
2626 | // its metadata. See | |
3157f602 | 2627 | // https://github.com/google/sanitizers/issues/321. |
1a4d82fc JJ |
2628 | int res = REAL(getpeername)(sockfd, addr, addrlen); |
2629 | if (!res && addr && addrlen) | |
2630 | COMMON_INTERCEPTOR_WRITE_RANGE(ctx, addr, Min(addr_sz, *addrlen)); | |
2631 | return res; | |
2632 | } | |
2633 | #define INIT_GETPEERNAME COMMON_INTERCEPT_FUNCTION(getpeername); | |
2634 | #else | |
2635 | #define INIT_GETPEERNAME | |
2636 | #endif | |
2637 | ||
2638 | #if SANITIZER_INTERCEPT_SYSINFO | |
2639 | INTERCEPTOR(int, sysinfo, void *info) { | |
2640 | void *ctx; | |
92a42be0 SL |
2641 | // FIXME: under ASan the call below may write to freed memory and corrupt |
2642 | // its metadata. See | |
3157f602 | 2643 | // https://github.com/google/sanitizers/issues/321. |
1a4d82fc JJ |
2644 | COMMON_INTERCEPTOR_ENTER(ctx, sysinfo, info); |
2645 | int res = REAL(sysinfo)(info); | |
2646 | if (!res && info) | |
2647 | COMMON_INTERCEPTOR_WRITE_RANGE(ctx, info, struct_sysinfo_sz); | |
2648 | return res; | |
2649 | } | |
2650 | #define INIT_SYSINFO COMMON_INTERCEPT_FUNCTION(sysinfo); | |
2651 | #else | |
2652 | #define INIT_SYSINFO | |
2653 | #endif | |
2654 | ||
2655 | #if SANITIZER_INTERCEPT_READDIR | |
92a42be0 SL |
2656 | INTERCEPTOR(__sanitizer_dirent *, opendir, const char *path) { |
2657 | void *ctx; | |
2658 | COMMON_INTERCEPTOR_ENTER(ctx, opendir, path); | |
2659 | COMMON_INTERCEPTOR_READ_RANGE(ctx, path, REAL(strlen)(path) + 1); | |
2660 | __sanitizer_dirent *res = REAL(opendir)(path); | |
2661 | if (res) | |
2662 | COMMON_INTERCEPTOR_DIR_ACQUIRE(ctx, path); | |
2663 | return res; | |
2664 | } | |
2665 | ||
1a4d82fc JJ |
2666 | INTERCEPTOR(__sanitizer_dirent *, readdir, void *dirp) { |
2667 | void *ctx; | |
2668 | COMMON_INTERCEPTOR_ENTER(ctx, readdir, dirp); | |
92a42be0 SL |
2669 | // FIXME: under ASan the call below may write to freed memory and corrupt |
2670 | // its metadata. See | |
3157f602 | 2671 | // https://github.com/google/sanitizers/issues/321. |
1a4d82fc JJ |
2672 | __sanitizer_dirent *res = REAL(readdir)(dirp); |
2673 | if (res) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, res, res->d_reclen); | |
2674 | return res; | |
2675 | } | |
2676 | ||
2677 | INTERCEPTOR(int, readdir_r, void *dirp, __sanitizer_dirent *entry, | |
2678 | __sanitizer_dirent **result) { | |
2679 | void *ctx; | |
2680 | COMMON_INTERCEPTOR_ENTER(ctx, readdir_r, dirp, entry, result); | |
92a42be0 SL |
2681 | // FIXME: under ASan the call below may write to freed memory and corrupt |
2682 | // its metadata. See | |
3157f602 | 2683 | // https://github.com/google/sanitizers/issues/321. |
1a4d82fc JJ |
2684 | int res = REAL(readdir_r)(dirp, entry, result); |
2685 | if (!res) { | |
2686 | COMMON_INTERCEPTOR_WRITE_RANGE(ctx, result, sizeof(*result)); | |
2687 | if (*result) | |
2688 | COMMON_INTERCEPTOR_WRITE_RANGE(ctx, *result, (*result)->d_reclen); | |
2689 | } | |
2690 | return res; | |
2691 | } | |
2692 | ||
2693 | #define INIT_READDIR \ | |
92a42be0 | 2694 | COMMON_INTERCEPT_FUNCTION(opendir); \ |
1a4d82fc JJ |
2695 | COMMON_INTERCEPT_FUNCTION(readdir); \ |
2696 | COMMON_INTERCEPT_FUNCTION(readdir_r); | |
2697 | #else | |
2698 | #define INIT_READDIR | |
2699 | #endif | |
2700 | ||
2701 | #if SANITIZER_INTERCEPT_READDIR64 | |
2702 | INTERCEPTOR(__sanitizer_dirent64 *, readdir64, void *dirp) { | |
2703 | void *ctx; | |
2704 | COMMON_INTERCEPTOR_ENTER(ctx, readdir64, dirp); | |
92a42be0 SL |
2705 | // FIXME: under ASan the call below may write to freed memory and corrupt |
2706 | // its metadata. See | |
3157f602 | 2707 | // https://github.com/google/sanitizers/issues/321. |
1a4d82fc JJ |
2708 | __sanitizer_dirent64 *res = REAL(readdir64)(dirp); |
2709 | if (res) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, res, res->d_reclen); | |
2710 | return res; | |
2711 | } | |
2712 | ||
2713 | INTERCEPTOR(int, readdir64_r, void *dirp, __sanitizer_dirent64 *entry, | |
2714 | __sanitizer_dirent64 **result) { | |
2715 | void *ctx; | |
2716 | COMMON_INTERCEPTOR_ENTER(ctx, readdir64_r, dirp, entry, result); | |
92a42be0 SL |
2717 | // FIXME: under ASan the call below may write to freed memory and corrupt |
2718 | // its metadata. See | |
3157f602 | 2719 | // https://github.com/google/sanitizers/issues/321. |
1a4d82fc JJ |
2720 | int res = REAL(readdir64_r)(dirp, entry, result); |
2721 | if (!res) { | |
2722 | COMMON_INTERCEPTOR_WRITE_RANGE(ctx, result, sizeof(*result)); | |
2723 | if (*result) | |
2724 | COMMON_INTERCEPTOR_WRITE_RANGE(ctx, *result, (*result)->d_reclen); | |
2725 | } | |
2726 | return res; | |
2727 | } | |
2728 | #define INIT_READDIR64 \ | |
2729 | COMMON_INTERCEPT_FUNCTION(readdir64); \ | |
2730 | COMMON_INTERCEPT_FUNCTION(readdir64_r); | |
2731 | #else | |
2732 | #define INIT_READDIR64 | |
2733 | #endif | |
2734 | ||
2735 | #if SANITIZER_INTERCEPT_PTRACE | |
2736 | INTERCEPTOR(uptr, ptrace, int request, int pid, void *addr, void *data) { | |
2737 | void *ctx; | |
2738 | COMMON_INTERCEPTOR_ENTER(ctx, ptrace, request, pid, addr, data); | |
92a42be0 | 2739 | __sanitizer_iovec local_iovec; |
1a4d82fc JJ |
2740 | |
2741 | if (data) { | |
2742 | if (request == ptrace_setregs) | |
2743 | COMMON_INTERCEPTOR_READ_RANGE(ctx, data, struct_user_regs_struct_sz); | |
2744 | else if (request == ptrace_setfpregs) | |
2745 | COMMON_INTERCEPTOR_READ_RANGE(ctx, data, struct_user_fpregs_struct_sz); | |
2746 | else if (request == ptrace_setfpxregs) | |
2747 | COMMON_INTERCEPTOR_READ_RANGE(ctx, data, struct_user_fpxregs_struct_sz); | |
92a42be0 SL |
2748 | else if (request == ptrace_setvfpregs) |
2749 | COMMON_INTERCEPTOR_READ_RANGE(ctx, data, struct_user_vfpregs_struct_sz); | |
1a4d82fc JJ |
2750 | else if (request == ptrace_setsiginfo) |
2751 | COMMON_INTERCEPTOR_READ_RANGE(ctx, data, siginfo_t_sz); | |
92a42be0 SL |
2752 | // Some kernel might zero the iovec::iov_base in case of invalid |
2753 | // write access. In this case copy the invalid address for further | |
2754 | // inspection. | |
2755 | else if (request == ptrace_setregset || request == ptrace_getregset) { | |
2756 | __sanitizer_iovec *iovec = (__sanitizer_iovec*)data; | |
2757 | COMMON_INTERCEPTOR_READ_RANGE(ctx, iovec, sizeof(*iovec)); | |
2758 | local_iovec = *iovec; | |
2759 | if (request == ptrace_setregset) | |
2760 | COMMON_INTERCEPTOR_READ_RANGE(ctx, iovec->iov_base, iovec->iov_len); | |
1a4d82fc JJ |
2761 | } |
2762 | } | |
2763 | ||
92a42be0 SL |
2764 | // FIXME: under ASan the call below may write to freed memory and corrupt |
2765 | // its metadata. See | |
3157f602 | 2766 | // https://github.com/google/sanitizers/issues/321. |
1a4d82fc JJ |
2767 | uptr res = REAL(ptrace)(request, pid, addr, data); |
2768 | ||
2769 | if (!res && data) { | |
92a42be0 | 2770 | // Note that PEEK* requests assign different meaning to the return value. |
1a4d82fc JJ |
2771 | // This function does not handle them (nor does it need to). |
2772 | if (request == ptrace_getregs) | |
2773 | COMMON_INTERCEPTOR_WRITE_RANGE(ctx, data, struct_user_regs_struct_sz); | |
2774 | else if (request == ptrace_getfpregs) | |
2775 | COMMON_INTERCEPTOR_WRITE_RANGE(ctx, data, struct_user_fpregs_struct_sz); | |
2776 | else if (request == ptrace_getfpxregs) | |
2777 | COMMON_INTERCEPTOR_WRITE_RANGE(ctx, data, struct_user_fpxregs_struct_sz); | |
92a42be0 SL |
2778 | else if (request == ptrace_getvfpregs) |
2779 | COMMON_INTERCEPTOR_WRITE_RANGE(ctx, data, struct_user_vfpregs_struct_sz); | |
1a4d82fc JJ |
2780 | else if (request == ptrace_getsiginfo) |
2781 | COMMON_INTERCEPTOR_WRITE_RANGE(ctx, data, siginfo_t_sz); | |
92a42be0 SL |
2782 | else if (request == ptrace_geteventmsg) |
2783 | COMMON_INTERCEPTOR_WRITE_RANGE(ctx, data, sizeof(unsigned long)); | |
1a4d82fc | 2784 | else if (request == ptrace_getregset) { |
92a42be0 SL |
2785 | __sanitizer_iovec *iovec = (__sanitizer_iovec*)data; |
2786 | COMMON_INTERCEPTOR_WRITE_RANGE(ctx, iovec, sizeof(*iovec)); | |
2787 | COMMON_INTERCEPTOR_WRITE_RANGE(ctx, local_iovec.iov_base, | |
2788 | local_iovec.iov_len); | |
1a4d82fc JJ |
2789 | } |
2790 | } | |
2791 | return res; | |
2792 | } | |
2793 | ||
2794 | #define INIT_PTRACE COMMON_INTERCEPT_FUNCTION(ptrace); | |
2795 | #else | |
2796 | #define INIT_PTRACE | |
2797 | #endif | |
2798 | ||
2799 | #if SANITIZER_INTERCEPT_SETLOCALE | |
2800 | INTERCEPTOR(char *, setlocale, int category, char *locale) { | |
2801 | void *ctx; | |
2802 | COMMON_INTERCEPTOR_ENTER(ctx, setlocale, category, locale); | |
2803 | if (locale) | |
2804 | COMMON_INTERCEPTOR_READ_RANGE(ctx, locale, REAL(strlen)(locale) + 1); | |
2805 | char *res = REAL(setlocale)(category, locale); | |
2806 | if (res) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, res, REAL(strlen)(res) + 1); | |
2807 | return res; | |
2808 | } | |
2809 | ||
2810 | #define INIT_SETLOCALE COMMON_INTERCEPT_FUNCTION(setlocale); | |
2811 | #else | |
2812 | #define INIT_SETLOCALE | |
2813 | #endif | |
2814 | ||
2815 | #if SANITIZER_INTERCEPT_GETCWD | |
2816 | INTERCEPTOR(char *, getcwd, char *buf, SIZE_T size) { | |
2817 | void *ctx; | |
2818 | COMMON_INTERCEPTOR_ENTER(ctx, getcwd, buf, size); | |
92a42be0 SL |
2819 | // FIXME: under ASan the call below may write to freed memory and corrupt |
2820 | // its metadata. See | |
3157f602 | 2821 | // https://github.com/google/sanitizers/issues/321. |
1a4d82fc JJ |
2822 | char *res = REAL(getcwd)(buf, size); |
2823 | if (res) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, res, REAL(strlen)(res) + 1); | |
2824 | return res; | |
2825 | } | |
2826 | #define INIT_GETCWD COMMON_INTERCEPT_FUNCTION(getcwd); | |
2827 | #else | |
2828 | #define INIT_GETCWD | |
2829 | #endif | |
2830 | ||
2831 | #if SANITIZER_INTERCEPT_GET_CURRENT_DIR_NAME | |
2832 | INTERCEPTOR(char *, get_current_dir_name, int fake) { | |
2833 | void *ctx; | |
2834 | COMMON_INTERCEPTOR_ENTER(ctx, get_current_dir_name, fake); | |
92a42be0 SL |
2835 | // FIXME: under ASan the call below may write to freed memory and corrupt |
2836 | // its metadata. See | |
3157f602 | 2837 | // https://github.com/google/sanitizers/issues/321. |
1a4d82fc JJ |
2838 | char *res = REAL(get_current_dir_name)(fake); |
2839 | if (res) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, res, REAL(strlen)(res) + 1); | |
2840 | return res; | |
2841 | } | |
2842 | ||
2843 | #define INIT_GET_CURRENT_DIR_NAME \ | |
2844 | COMMON_INTERCEPT_FUNCTION(get_current_dir_name); | |
2845 | #else | |
2846 | #define INIT_GET_CURRENT_DIR_NAME | |
2847 | #endif | |
2848 | ||
92a42be0 SL |
2849 | UNUSED static inline void FixRealStrtolEndptr(const char *nptr, char **endptr) { |
2850 | CHECK(endptr); | |
2851 | if (nptr == *endptr) { | |
2852 | // No digits were found at strtol call, we need to find out the last | |
2853 | // symbol accessed by strtoll on our own. | |
2854 | // We get this symbol by skipping leading blanks and optional +/- sign. | |
2855 | while (IsSpace(*nptr)) nptr++; | |
2856 | if (*nptr == '+' || *nptr == '-') nptr++; | |
2857 | *endptr = const_cast<char *>(nptr); | |
2858 | } | |
2859 | CHECK(*endptr >= nptr); | |
2860 | } | |
2861 | ||
2862 | UNUSED static inline void StrtolFixAndCheck(void *ctx, const char *nptr, | |
2863 | char **endptr, char *real_endptr, int base) { | |
2864 | if (endptr) { | |
2865 | *endptr = real_endptr; | |
2866 | COMMON_INTERCEPTOR_WRITE_RANGE(ctx, endptr, sizeof(*endptr)); | |
2867 | } | |
2868 | // If base has unsupported value, strtol can exit with EINVAL | |
2869 | // without reading any characters. So do additional checks only | |
2870 | // if base is valid. | |
2871 | bool is_valid_base = (base == 0) || (2 <= base && base <= 36); | |
2872 | if (is_valid_base) { | |
2873 | FixRealStrtolEndptr(nptr, &real_endptr); | |
2874 | } | |
2875 | COMMON_INTERCEPTOR_READ_STRING(ctx, nptr, is_valid_base ? | |
2876 | (real_endptr - nptr) + 1 : 0); | |
2877 | } | |
2878 | ||
2879 | ||
1a4d82fc JJ |
2880 | #if SANITIZER_INTERCEPT_STRTOIMAX |
2881 | INTERCEPTOR(INTMAX_T, strtoimax, const char *nptr, char **endptr, int base) { | |
2882 | void *ctx; | |
2883 | COMMON_INTERCEPTOR_ENTER(ctx, strtoimax, nptr, endptr, base); | |
92a42be0 SL |
2884 | // FIXME: under ASan the call below may write to freed memory and corrupt |
2885 | // its metadata. See | |
3157f602 | 2886 | // https://github.com/google/sanitizers/issues/321. |
92a42be0 SL |
2887 | char *real_endptr; |
2888 | INTMAX_T res = REAL(strtoimax)(nptr, &real_endptr, base); | |
2889 | StrtolFixAndCheck(ctx, nptr, endptr, real_endptr, base); | |
1a4d82fc JJ |
2890 | return res; |
2891 | } | |
2892 | ||
2893 | INTERCEPTOR(INTMAX_T, strtoumax, const char *nptr, char **endptr, int base) { | |
2894 | void *ctx; | |
2895 | COMMON_INTERCEPTOR_ENTER(ctx, strtoumax, nptr, endptr, base); | |
92a42be0 SL |
2896 | // FIXME: under ASan the call below may write to freed memory and corrupt |
2897 | // its metadata. See | |
3157f602 | 2898 | // https://github.com/google/sanitizers/issues/321. |
92a42be0 SL |
2899 | char *real_endptr; |
2900 | INTMAX_T res = REAL(strtoumax)(nptr, &real_endptr, base); | |
2901 | StrtolFixAndCheck(ctx, nptr, endptr, real_endptr, base); | |
1a4d82fc JJ |
2902 | return res; |
2903 | } | |
2904 | ||
2905 | #define INIT_STRTOIMAX \ | |
2906 | COMMON_INTERCEPT_FUNCTION(strtoimax); \ | |
2907 | COMMON_INTERCEPT_FUNCTION(strtoumax); | |
2908 | #else | |
2909 | #define INIT_STRTOIMAX | |
2910 | #endif | |
2911 | ||
2912 | #if SANITIZER_INTERCEPT_MBSTOWCS | |
2913 | INTERCEPTOR(SIZE_T, mbstowcs, wchar_t *dest, const char *src, SIZE_T len) { | |
2914 | void *ctx; | |
2915 | COMMON_INTERCEPTOR_ENTER(ctx, mbstowcs, dest, src, len); | |
92a42be0 SL |
2916 | // FIXME: under ASan the call below may write to freed memory and corrupt |
2917 | // its metadata. See | |
3157f602 | 2918 | // https://github.com/google/sanitizers/issues/321. |
1a4d82fc JJ |
2919 | SIZE_T res = REAL(mbstowcs)(dest, src, len); |
2920 | if (res != (SIZE_T) - 1 && dest) { | |
2921 | SIZE_T write_cnt = res + (res < len); | |
2922 | COMMON_INTERCEPTOR_WRITE_RANGE(ctx, dest, write_cnt * sizeof(wchar_t)); | |
2923 | } | |
2924 | return res; | |
2925 | } | |
2926 | ||
2927 | INTERCEPTOR(SIZE_T, mbsrtowcs, wchar_t *dest, const char **src, SIZE_T len, | |
2928 | void *ps) { | |
2929 | void *ctx; | |
2930 | COMMON_INTERCEPTOR_ENTER(ctx, mbsrtowcs, dest, src, len, ps); | |
2931 | if (src) COMMON_INTERCEPTOR_READ_RANGE(ctx, src, sizeof(*src)); | |
2932 | if (ps) COMMON_INTERCEPTOR_READ_RANGE(ctx, ps, mbstate_t_sz); | |
92a42be0 SL |
2933 | // FIXME: under ASan the call below may write to freed memory and corrupt |
2934 | // its metadata. See | |
3157f602 | 2935 | // https://github.com/google/sanitizers/issues/321. |
1a4d82fc JJ |
2936 | SIZE_T res = REAL(mbsrtowcs)(dest, src, len, ps); |
2937 | if (res != (SIZE_T)(-1) && dest && src) { | |
2938 | // This function, and several others, may or may not write the terminating | |
2939 | // \0 character. They write it iff they clear *src. | |
2940 | SIZE_T write_cnt = res + !*src; | |
2941 | COMMON_INTERCEPTOR_WRITE_RANGE(ctx, dest, write_cnt * sizeof(wchar_t)); | |
2942 | } | |
2943 | return res; | |
2944 | } | |
2945 | ||
2946 | #define INIT_MBSTOWCS \ | |
2947 | COMMON_INTERCEPT_FUNCTION(mbstowcs); \ | |
2948 | COMMON_INTERCEPT_FUNCTION(mbsrtowcs); | |
2949 | #else | |
2950 | #define INIT_MBSTOWCS | |
2951 | #endif | |
2952 | ||
2953 | #if SANITIZER_INTERCEPT_MBSNRTOWCS | |
2954 | INTERCEPTOR(SIZE_T, mbsnrtowcs, wchar_t *dest, const char **src, SIZE_T nms, | |
2955 | SIZE_T len, void *ps) { | |
2956 | void *ctx; | |
2957 | COMMON_INTERCEPTOR_ENTER(ctx, mbsnrtowcs, dest, src, nms, len, ps); | |
2958 | if (src) { | |
2959 | COMMON_INTERCEPTOR_READ_RANGE(ctx, src, sizeof(*src)); | |
2960 | if (nms) COMMON_INTERCEPTOR_READ_RANGE(ctx, *src, nms); | |
2961 | } | |
2962 | if (ps) COMMON_INTERCEPTOR_READ_RANGE(ctx, ps, mbstate_t_sz); | |
92a42be0 SL |
2963 | // FIXME: under ASan the call below may write to freed memory and corrupt |
2964 | // its metadata. See | |
3157f602 | 2965 | // https://github.com/google/sanitizers/issues/321. |
1a4d82fc JJ |
2966 | SIZE_T res = REAL(mbsnrtowcs)(dest, src, nms, len, ps); |
2967 | if (res != (SIZE_T)(-1) && dest && src) { | |
2968 | SIZE_T write_cnt = res + !*src; | |
2969 | COMMON_INTERCEPTOR_WRITE_RANGE(ctx, dest, write_cnt * sizeof(wchar_t)); | |
2970 | } | |
2971 | return res; | |
2972 | } | |
2973 | ||
2974 | #define INIT_MBSNRTOWCS COMMON_INTERCEPT_FUNCTION(mbsnrtowcs); | |
2975 | #else | |
2976 | #define INIT_MBSNRTOWCS | |
2977 | #endif | |
2978 | ||
2979 | #if SANITIZER_INTERCEPT_WCSTOMBS | |
2980 | INTERCEPTOR(SIZE_T, wcstombs, char *dest, const wchar_t *src, SIZE_T len) { | |
2981 | void *ctx; | |
2982 | COMMON_INTERCEPTOR_ENTER(ctx, wcstombs, dest, src, len); | |
92a42be0 SL |
2983 | // FIXME: under ASan the call below may write to freed memory and corrupt |
2984 | // its metadata. See | |
3157f602 | 2985 | // https://github.com/google/sanitizers/issues/321. |
1a4d82fc JJ |
2986 | SIZE_T res = REAL(wcstombs)(dest, src, len); |
2987 | if (res != (SIZE_T) - 1 && dest) { | |
2988 | SIZE_T write_cnt = res + (res < len); | |
2989 | COMMON_INTERCEPTOR_WRITE_RANGE(ctx, dest, write_cnt); | |
2990 | } | |
2991 | return res; | |
2992 | } | |
2993 | ||
2994 | INTERCEPTOR(SIZE_T, wcsrtombs, char *dest, const wchar_t **src, SIZE_T len, | |
2995 | void *ps) { | |
2996 | void *ctx; | |
2997 | COMMON_INTERCEPTOR_ENTER(ctx, wcsrtombs, dest, src, len, ps); | |
2998 | if (src) COMMON_INTERCEPTOR_READ_RANGE(ctx, src, sizeof(*src)); | |
2999 | if (ps) COMMON_INTERCEPTOR_READ_RANGE(ctx, ps, mbstate_t_sz); | |
92a42be0 SL |
3000 | // FIXME: under ASan the call below may write to freed memory and corrupt |
3001 | // its metadata. See | |
3157f602 | 3002 | // https://github.com/google/sanitizers/issues/321. |
1a4d82fc JJ |
3003 | SIZE_T res = REAL(wcsrtombs)(dest, src, len, ps); |
3004 | if (res != (SIZE_T) - 1 && dest && src) { | |
3005 | SIZE_T write_cnt = res + !*src; | |
3006 | COMMON_INTERCEPTOR_WRITE_RANGE(ctx, dest, write_cnt); | |
3007 | } | |
3008 | return res; | |
3009 | } | |
3010 | ||
3011 | #define INIT_WCSTOMBS \ | |
3012 | COMMON_INTERCEPT_FUNCTION(wcstombs); \ | |
3013 | COMMON_INTERCEPT_FUNCTION(wcsrtombs); | |
3014 | #else | |
3015 | #define INIT_WCSTOMBS | |
3016 | #endif | |
3017 | ||
3018 | #if SANITIZER_INTERCEPT_WCSNRTOMBS | |
3019 | INTERCEPTOR(SIZE_T, wcsnrtombs, char *dest, const wchar_t **src, SIZE_T nms, | |
3020 | SIZE_T len, void *ps) { | |
3021 | void *ctx; | |
3022 | COMMON_INTERCEPTOR_ENTER(ctx, wcsnrtombs, dest, src, nms, len, ps); | |
3023 | if (src) { | |
3024 | COMMON_INTERCEPTOR_READ_RANGE(ctx, src, sizeof(*src)); | |
3025 | if (nms) COMMON_INTERCEPTOR_READ_RANGE(ctx, *src, nms); | |
3026 | } | |
3027 | if (ps) COMMON_INTERCEPTOR_READ_RANGE(ctx, ps, mbstate_t_sz); | |
92a42be0 SL |
3028 | // FIXME: under ASan the call below may write to freed memory and corrupt |
3029 | // its metadata. See | |
3157f602 | 3030 | // https://github.com/google/sanitizers/issues/321. |
1a4d82fc | 3031 | SIZE_T res = REAL(wcsnrtombs)(dest, src, nms, len, ps); |
92a42be0 | 3032 | if (res != ((SIZE_T)-1) && dest && src) { |
1a4d82fc JJ |
3033 | SIZE_T write_cnt = res + !*src; |
3034 | COMMON_INTERCEPTOR_WRITE_RANGE(ctx, dest, write_cnt); | |
3035 | } | |
3036 | return res; | |
3037 | } | |
3038 | ||
3039 | #define INIT_WCSNRTOMBS COMMON_INTERCEPT_FUNCTION(wcsnrtombs); | |
3040 | #else | |
3041 | #define INIT_WCSNRTOMBS | |
3042 | #endif | |
3043 | ||
92a42be0 SL |
3044 | |
3045 | #if SANITIZER_INTERCEPT_WCRTOMB | |
3046 | INTERCEPTOR(SIZE_T, wcrtomb, char *dest, wchar_t src, void *ps) { | |
3047 | void *ctx; | |
3048 | COMMON_INTERCEPTOR_ENTER(ctx, wcrtomb, dest, src, ps); | |
3049 | if (ps) COMMON_INTERCEPTOR_READ_RANGE(ctx, ps, mbstate_t_sz); | |
3050 | // FIXME: under ASan the call below may write to freed memory and corrupt | |
3051 | // its metadata. See | |
3157f602 | 3052 | // https://github.com/google/sanitizers/issues/321. |
92a42be0 SL |
3053 | SIZE_T res = REAL(wcrtomb)(dest, src, ps); |
3054 | if (res != ((SIZE_T)-1) && dest) { | |
3055 | SIZE_T write_cnt = res; | |
3056 | COMMON_INTERCEPTOR_WRITE_RANGE(ctx, dest, write_cnt); | |
3057 | } | |
3058 | return res; | |
3059 | } | |
3060 | ||
3061 | #define INIT_WCRTOMB COMMON_INTERCEPT_FUNCTION(wcrtomb); | |
3062 | #else | |
3063 | #define INIT_WCRTOMB | |
3064 | #endif | |
3065 | ||
1a4d82fc JJ |
3066 | #if SANITIZER_INTERCEPT_TCGETATTR |
3067 | INTERCEPTOR(int, tcgetattr, int fd, void *termios_p) { | |
3068 | void *ctx; | |
3069 | COMMON_INTERCEPTOR_ENTER(ctx, tcgetattr, fd, termios_p); | |
92a42be0 SL |
3070 | // FIXME: under ASan the call below may write to freed memory and corrupt |
3071 | // its metadata. See | |
3157f602 | 3072 | // https://github.com/google/sanitizers/issues/321. |
1a4d82fc JJ |
3073 | int res = REAL(tcgetattr)(fd, termios_p); |
3074 | if (!res && termios_p) | |
3075 | COMMON_INTERCEPTOR_WRITE_RANGE(ctx, termios_p, struct_termios_sz); | |
3076 | return res; | |
3077 | } | |
3078 | ||
3079 | #define INIT_TCGETATTR COMMON_INTERCEPT_FUNCTION(tcgetattr); | |
3080 | #else | |
3081 | #define INIT_TCGETATTR | |
3082 | #endif | |
3083 | ||
3084 | #if SANITIZER_INTERCEPT_REALPATH | |
3085 | INTERCEPTOR(char *, realpath, const char *path, char *resolved_path) { | |
3086 | void *ctx; | |
3087 | COMMON_INTERCEPTOR_ENTER(ctx, realpath, path, resolved_path); | |
3088 | if (path) COMMON_INTERCEPTOR_READ_RANGE(ctx, path, REAL(strlen)(path) + 1); | |
3089 | ||
3090 | // Workaround a bug in glibc where dlsym(RTLD_NEXT, ...) returns the oldest | |
3091 | // version of a versioned symbol. For realpath(), this gives us something | |
3092 | // (called __old_realpath) that does not handle NULL in the second argument. | |
3093 | // Handle it as part of the interceptor. | |
92a42be0 | 3094 | char *allocated_path = nullptr; |
1a4d82fc JJ |
3095 | if (!resolved_path) |
3096 | allocated_path = resolved_path = (char *)WRAP(malloc)(path_max + 1); | |
3097 | ||
3098 | char *res = REAL(realpath)(path, resolved_path); | |
3099 | if (allocated_path && !res) WRAP(free)(allocated_path); | |
3100 | if (res) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, res, REAL(strlen)(res) + 1); | |
3101 | return res; | |
3102 | } | |
3103 | #define INIT_REALPATH COMMON_INTERCEPT_FUNCTION(realpath); | |
3104 | #else | |
3105 | #define INIT_REALPATH | |
3106 | #endif | |
3107 | ||
3108 | #if SANITIZER_INTERCEPT_CANONICALIZE_FILE_NAME | |
3109 | INTERCEPTOR(char *, canonicalize_file_name, const char *path) { | |
3110 | void *ctx; | |
3111 | COMMON_INTERCEPTOR_ENTER(ctx, canonicalize_file_name, path); | |
3112 | if (path) COMMON_INTERCEPTOR_READ_RANGE(ctx, path, REAL(strlen)(path) + 1); | |
3113 | char *res = REAL(canonicalize_file_name)(path); | |
3114 | if (res) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, res, REAL(strlen)(res) + 1); | |
3115 | return res; | |
3116 | } | |
3117 | #define INIT_CANONICALIZE_FILE_NAME \ | |
3118 | COMMON_INTERCEPT_FUNCTION(canonicalize_file_name); | |
3119 | #else | |
3120 | #define INIT_CANONICALIZE_FILE_NAME | |
3121 | #endif | |
3122 | ||
3123 | #if SANITIZER_INTERCEPT_CONFSTR | |
3124 | INTERCEPTOR(SIZE_T, confstr, int name, char *buf, SIZE_T len) { | |
3125 | void *ctx; | |
3126 | COMMON_INTERCEPTOR_ENTER(ctx, confstr, name, buf, len); | |
92a42be0 SL |
3127 | // FIXME: under ASan the call below may write to freed memory and corrupt |
3128 | // its metadata. See | |
3157f602 | 3129 | // https://github.com/google/sanitizers/issues/321. |
1a4d82fc JJ |
3130 | SIZE_T res = REAL(confstr)(name, buf, len); |
3131 | if (buf && res) | |
3132 | COMMON_INTERCEPTOR_WRITE_RANGE(ctx, buf, res < len ? res : len); | |
3133 | return res; | |
3134 | } | |
3135 | #define INIT_CONFSTR COMMON_INTERCEPT_FUNCTION(confstr); | |
3136 | #else | |
3137 | #define INIT_CONFSTR | |
3138 | #endif | |
3139 | ||
3140 | #if SANITIZER_INTERCEPT_SCHED_GETAFFINITY | |
3141 | INTERCEPTOR(int, sched_getaffinity, int pid, SIZE_T cpusetsize, void *mask) { | |
3142 | void *ctx; | |
3143 | COMMON_INTERCEPTOR_ENTER(ctx, sched_getaffinity, pid, cpusetsize, mask); | |
92a42be0 SL |
3144 | // FIXME: under ASan the call below may write to freed memory and corrupt |
3145 | // its metadata. See | |
3157f602 | 3146 | // https://github.com/google/sanitizers/issues/321. |
1a4d82fc JJ |
3147 | int res = REAL(sched_getaffinity)(pid, cpusetsize, mask); |
3148 | if (mask && !res) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, mask, cpusetsize); | |
3149 | return res; | |
3150 | } | |
3151 | #define INIT_SCHED_GETAFFINITY COMMON_INTERCEPT_FUNCTION(sched_getaffinity); | |
3152 | #else | |
3153 | #define INIT_SCHED_GETAFFINITY | |
3154 | #endif | |
3155 | ||
92a42be0 SL |
3156 | #if SANITIZER_INTERCEPT_SCHED_GETPARAM |
3157 | INTERCEPTOR(int, sched_getparam, int pid, void *param) { | |
3158 | void *ctx; | |
3159 | COMMON_INTERCEPTOR_ENTER(ctx, sched_getparam, pid, param); | |
3160 | int res = REAL(sched_getparam)(pid, param); | |
3161 | if (!res) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, param, struct_sched_param_sz); | |
3162 | return res; | |
3163 | } | |
3164 | #define INIT_SCHED_GETPARAM COMMON_INTERCEPT_FUNCTION(sched_getparam); | |
3165 | #else | |
3166 | #define INIT_SCHED_GETPARAM | |
3167 | #endif | |
3168 | ||
1a4d82fc JJ |
3169 | #if SANITIZER_INTERCEPT_STRERROR |
3170 | INTERCEPTOR(char *, strerror, int errnum) { | |
3171 | void *ctx; | |
3172 | COMMON_INTERCEPTOR_ENTER(ctx, strerror, errnum); | |
3173 | char *res = REAL(strerror)(errnum); | |
3174 | if (res) COMMON_INTERCEPTOR_INITIALIZE_RANGE(res, REAL(strlen)(res) + 1); | |
3175 | return res; | |
3176 | } | |
3177 | #define INIT_STRERROR COMMON_INTERCEPT_FUNCTION(strerror); | |
3178 | #else | |
3179 | #define INIT_STRERROR | |
3180 | #endif | |
3181 | ||
3182 | #if SANITIZER_INTERCEPT_STRERROR_R | |
3183 | INTERCEPTOR(char *, strerror_r, int errnum, char *buf, SIZE_T buflen) { | |
3184 | void *ctx; | |
3185 | COMMON_INTERCEPTOR_ENTER(ctx, strerror_r, errnum, buf, buflen); | |
92a42be0 SL |
3186 | // FIXME: under ASan the call below may write to freed memory and corrupt |
3187 | // its metadata. See | |
3157f602 | 3188 | // https://github.com/google/sanitizers/issues/321. |
1a4d82fc JJ |
3189 | char *res = REAL(strerror_r)(errnum, buf, buflen); |
3190 | // There are 2 versions of strerror_r: | |
3191 | // * POSIX version returns 0 on success, negative error code on failure, | |
3192 | // writes message to buf. | |
3193 | // * GNU version returns message pointer, which points to either buf or some | |
3194 | // static storage. | |
3195 | SIZE_T posix_res = (SIZE_T)res; | |
3196 | if (posix_res < 1024 || posix_res > (SIZE_T) - 1024) { | |
3197 | // POSIX version. Spec is not clear on whether buf is NULL-terminated. | |
3198 | // At least on OSX, buf contents are valid even when the call fails. | |
3199 | SIZE_T sz = internal_strnlen(buf, buflen); | |
3200 | if (sz < buflen) ++sz; | |
3201 | COMMON_INTERCEPTOR_WRITE_RANGE(ctx, buf, sz); | |
3202 | } else { | |
3203 | // GNU version. | |
3204 | COMMON_INTERCEPTOR_WRITE_RANGE(ctx, res, REAL(strlen)(res) + 1); | |
3205 | } | |
3206 | return res; | |
3207 | } | |
3208 | #define INIT_STRERROR_R COMMON_INTERCEPT_FUNCTION(strerror_r); | |
3209 | #else | |
3210 | #define INIT_STRERROR_R | |
3211 | #endif | |
3212 | ||
3213 | #if SANITIZER_INTERCEPT_XPG_STRERROR_R | |
3214 | INTERCEPTOR(int, __xpg_strerror_r, int errnum, char *buf, SIZE_T buflen) { | |
3215 | void *ctx; | |
3216 | COMMON_INTERCEPTOR_ENTER(ctx, __xpg_strerror_r, errnum, buf, buflen); | |
92a42be0 SL |
3217 | // FIXME: under ASan the call below may write to freed memory and corrupt |
3218 | // its metadata. See | |
3157f602 | 3219 | // https://github.com/google/sanitizers/issues/321. |
1a4d82fc JJ |
3220 | int res = REAL(__xpg_strerror_r)(errnum, buf, buflen); |
3221 | // This version always returns a null-terminated string. | |
3222 | if (buf && buflen) | |
3223 | COMMON_INTERCEPTOR_WRITE_RANGE(ctx, buf, REAL(strlen)(buf) + 1); | |
3224 | return res; | |
3225 | } | |
3226 | #define INIT_XPG_STRERROR_R COMMON_INTERCEPT_FUNCTION(__xpg_strerror_r); | |
3227 | #else | |
3228 | #define INIT_XPG_STRERROR_R | |
3229 | #endif | |
3230 | ||
3231 | #if SANITIZER_INTERCEPT_SCANDIR | |
3232 | typedef int (*scandir_filter_f)(const struct __sanitizer_dirent *); | |
3233 | typedef int (*scandir_compar_f)(const struct __sanitizer_dirent **, | |
3234 | const struct __sanitizer_dirent **); | |
3235 | ||
3236 | static THREADLOCAL scandir_filter_f scandir_filter; | |
3237 | static THREADLOCAL scandir_compar_f scandir_compar; | |
3238 | ||
3239 | static int wrapped_scandir_filter(const struct __sanitizer_dirent *dir) { | |
3240 | COMMON_INTERCEPTOR_UNPOISON_PARAM(1); | |
3241 | COMMON_INTERCEPTOR_INITIALIZE_RANGE(dir, dir->d_reclen); | |
92a42be0 | 3242 | return scandir_filter(dir); |
1a4d82fc JJ |
3243 | } |
3244 | ||
3245 | static int wrapped_scandir_compar(const struct __sanitizer_dirent **a, | |
3246 | const struct __sanitizer_dirent **b) { | |
3247 | COMMON_INTERCEPTOR_UNPOISON_PARAM(2); | |
3248 | COMMON_INTERCEPTOR_INITIALIZE_RANGE(a, sizeof(*a)); | |
3249 | COMMON_INTERCEPTOR_INITIALIZE_RANGE(*a, (*a)->d_reclen); | |
3250 | COMMON_INTERCEPTOR_INITIALIZE_RANGE(b, sizeof(*b)); | |
3251 | COMMON_INTERCEPTOR_INITIALIZE_RANGE(*b, (*b)->d_reclen); | |
92a42be0 | 3252 | return scandir_compar(a, b); |
1a4d82fc JJ |
3253 | } |
3254 | ||
3255 | INTERCEPTOR(int, scandir, char *dirp, __sanitizer_dirent ***namelist, | |
3256 | scandir_filter_f filter, scandir_compar_f compar) { | |
3257 | void *ctx; | |
3258 | COMMON_INTERCEPTOR_ENTER(ctx, scandir, dirp, namelist, filter, compar); | |
3259 | if (dirp) COMMON_INTERCEPTOR_READ_RANGE(ctx, dirp, REAL(strlen)(dirp) + 1); | |
3260 | scandir_filter = filter; | |
3261 | scandir_compar = compar; | |
92a42be0 SL |
3262 | // FIXME: under ASan the call below may write to freed memory and corrupt |
3263 | // its metadata. See | |
3157f602 | 3264 | // https://github.com/google/sanitizers/issues/321. |
92a42be0 SL |
3265 | int res = REAL(scandir)(dirp, namelist, |
3266 | filter ? wrapped_scandir_filter : nullptr, | |
3267 | compar ? wrapped_scandir_compar : nullptr); | |
3268 | scandir_filter = nullptr; | |
3269 | scandir_compar = nullptr; | |
1a4d82fc JJ |
3270 | if (namelist && res > 0) { |
3271 | COMMON_INTERCEPTOR_WRITE_RANGE(ctx, namelist, sizeof(*namelist)); | |
3272 | COMMON_INTERCEPTOR_WRITE_RANGE(ctx, *namelist, sizeof(**namelist) * res); | |
3273 | for (int i = 0; i < res; ++i) | |
3274 | COMMON_INTERCEPTOR_WRITE_RANGE(ctx, (*namelist)[i], | |
3275 | (*namelist)[i]->d_reclen); | |
3276 | } | |
3277 | return res; | |
3278 | } | |
3279 | #define INIT_SCANDIR COMMON_INTERCEPT_FUNCTION(scandir); | |
3280 | #else | |
3281 | #define INIT_SCANDIR | |
3282 | #endif | |
3283 | ||
3284 | #if SANITIZER_INTERCEPT_SCANDIR64 | |
3285 | typedef int (*scandir64_filter_f)(const struct __sanitizer_dirent64 *); | |
3286 | typedef int (*scandir64_compar_f)(const struct __sanitizer_dirent64 **, | |
3287 | const struct __sanitizer_dirent64 **); | |
3288 | ||
3289 | static THREADLOCAL scandir64_filter_f scandir64_filter; | |
3290 | static THREADLOCAL scandir64_compar_f scandir64_compar; | |
3291 | ||
3292 | static int wrapped_scandir64_filter(const struct __sanitizer_dirent64 *dir) { | |
3293 | COMMON_INTERCEPTOR_UNPOISON_PARAM(1); | |
3294 | COMMON_INTERCEPTOR_INITIALIZE_RANGE(dir, dir->d_reclen); | |
92a42be0 | 3295 | return scandir64_filter(dir); |
1a4d82fc JJ |
3296 | } |
3297 | ||
3298 | static int wrapped_scandir64_compar(const struct __sanitizer_dirent64 **a, | |
3299 | const struct __sanitizer_dirent64 **b) { | |
3300 | COMMON_INTERCEPTOR_UNPOISON_PARAM(2); | |
3301 | COMMON_INTERCEPTOR_INITIALIZE_RANGE(a, sizeof(*a)); | |
3302 | COMMON_INTERCEPTOR_INITIALIZE_RANGE(*a, (*a)->d_reclen); | |
3303 | COMMON_INTERCEPTOR_INITIALIZE_RANGE(b, sizeof(*b)); | |
3304 | COMMON_INTERCEPTOR_INITIALIZE_RANGE(*b, (*b)->d_reclen); | |
92a42be0 | 3305 | return scandir64_compar(a, b); |
1a4d82fc JJ |
3306 | } |
3307 | ||
3308 | INTERCEPTOR(int, scandir64, char *dirp, __sanitizer_dirent64 ***namelist, | |
3309 | scandir64_filter_f filter, scandir64_compar_f compar) { | |
3310 | void *ctx; | |
3311 | COMMON_INTERCEPTOR_ENTER(ctx, scandir64, dirp, namelist, filter, compar); | |
3312 | if (dirp) COMMON_INTERCEPTOR_READ_RANGE(ctx, dirp, REAL(strlen)(dirp) + 1); | |
3313 | scandir64_filter = filter; | |
3314 | scandir64_compar = compar; | |
92a42be0 SL |
3315 | // FIXME: under ASan the call below may write to freed memory and corrupt |
3316 | // its metadata. See | |
3157f602 | 3317 | // https://github.com/google/sanitizers/issues/321. |
1a4d82fc | 3318 | int res = |
92a42be0 SL |
3319 | REAL(scandir64)(dirp, namelist, |
3320 | filter ? wrapped_scandir64_filter : nullptr, | |
3321 | compar ? wrapped_scandir64_compar : nullptr); | |
3322 | scandir64_filter = nullptr; | |
3323 | scandir64_compar = nullptr; | |
1a4d82fc JJ |
3324 | if (namelist && res > 0) { |
3325 | COMMON_INTERCEPTOR_WRITE_RANGE(ctx, namelist, sizeof(*namelist)); | |
3326 | COMMON_INTERCEPTOR_WRITE_RANGE(ctx, *namelist, sizeof(**namelist) * res); | |
3327 | for (int i = 0; i < res; ++i) | |
3328 | COMMON_INTERCEPTOR_WRITE_RANGE(ctx, (*namelist)[i], | |
3329 | (*namelist)[i]->d_reclen); | |
3330 | } | |
3331 | return res; | |
3332 | } | |
3333 | #define INIT_SCANDIR64 COMMON_INTERCEPT_FUNCTION(scandir64); | |
3334 | #else | |
3335 | #define INIT_SCANDIR64 | |
3336 | #endif | |
3337 | ||
3338 | #if SANITIZER_INTERCEPT_GETGROUPS | |
3339 | INTERCEPTOR(int, getgroups, int size, u32 *lst) { | |
3340 | void *ctx; | |
3341 | COMMON_INTERCEPTOR_ENTER(ctx, getgroups, size, lst); | |
92a42be0 SL |
3342 | // FIXME: under ASan the call below may write to freed memory and corrupt |
3343 | // its metadata. See | |
3157f602 | 3344 | // https://github.com/google/sanitizers/issues/321. |
1a4d82fc JJ |
3345 | int res = REAL(getgroups)(size, lst); |
3346 | if (res && lst) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, lst, res * sizeof(*lst)); | |
3347 | return res; | |
3348 | } | |
3349 | #define INIT_GETGROUPS COMMON_INTERCEPT_FUNCTION(getgroups); | |
3350 | #else | |
3351 | #define INIT_GETGROUPS | |
3352 | #endif | |
3353 | ||
3354 | #if SANITIZER_INTERCEPT_POLL | |
3355 | static void read_pollfd(void *ctx, __sanitizer_pollfd *fds, | |
3356 | __sanitizer_nfds_t nfds) { | |
3357 | for (unsigned i = 0; i < nfds; ++i) { | |
3358 | COMMON_INTERCEPTOR_READ_RANGE(ctx, &fds[i].fd, sizeof(fds[i].fd)); | |
3359 | COMMON_INTERCEPTOR_READ_RANGE(ctx, &fds[i].events, sizeof(fds[i].events)); | |
3360 | } | |
3361 | } | |
3362 | ||
3363 | static void write_pollfd(void *ctx, __sanitizer_pollfd *fds, | |
3364 | __sanitizer_nfds_t nfds) { | |
3365 | for (unsigned i = 0; i < nfds; ++i) | |
3366 | COMMON_INTERCEPTOR_WRITE_RANGE(ctx, &fds[i].revents, | |
3367 | sizeof(fds[i].revents)); | |
3368 | } | |
3369 | ||
3370 | INTERCEPTOR(int, poll, __sanitizer_pollfd *fds, __sanitizer_nfds_t nfds, | |
3371 | int timeout) { | |
3372 | void *ctx; | |
3373 | COMMON_INTERCEPTOR_ENTER(ctx, poll, fds, nfds, timeout); | |
3374 | if (fds && nfds) read_pollfd(ctx, fds, nfds); | |
3375 | int res = COMMON_INTERCEPTOR_BLOCK_REAL(poll)(fds, nfds, timeout); | |
3376 | if (fds && nfds) write_pollfd(ctx, fds, nfds); | |
3377 | return res; | |
3378 | } | |
3379 | #define INIT_POLL COMMON_INTERCEPT_FUNCTION(poll); | |
3380 | #else | |
3381 | #define INIT_POLL | |
3382 | #endif | |
3383 | ||
3384 | #if SANITIZER_INTERCEPT_PPOLL | |
3385 | INTERCEPTOR(int, ppoll, __sanitizer_pollfd *fds, __sanitizer_nfds_t nfds, | |
3386 | void *timeout_ts, __sanitizer_sigset_t *sigmask) { | |
3387 | void *ctx; | |
3388 | COMMON_INTERCEPTOR_ENTER(ctx, ppoll, fds, nfds, timeout_ts, sigmask); | |
3389 | if (fds && nfds) read_pollfd(ctx, fds, nfds); | |
3390 | if (timeout_ts) | |
3391 | COMMON_INTERCEPTOR_READ_RANGE(ctx, timeout_ts, struct_timespec_sz); | |
3392 | // FIXME: read sigmask when all of sigemptyset, etc are intercepted. | |
3393 | int res = | |
3394 | COMMON_INTERCEPTOR_BLOCK_REAL(ppoll)(fds, nfds, timeout_ts, sigmask); | |
3395 | if (fds && nfds) write_pollfd(ctx, fds, nfds); | |
3396 | return res; | |
3397 | } | |
3398 | #define INIT_PPOLL COMMON_INTERCEPT_FUNCTION(ppoll); | |
3399 | #else | |
3400 | #define INIT_PPOLL | |
3401 | #endif | |
3402 | ||
3403 | #if SANITIZER_INTERCEPT_WORDEXP | |
3404 | INTERCEPTOR(int, wordexp, char *s, __sanitizer_wordexp_t *p, int flags) { | |
3405 | void *ctx; | |
3406 | COMMON_INTERCEPTOR_ENTER(ctx, wordexp, s, p, flags); | |
3407 | if (s) COMMON_INTERCEPTOR_READ_RANGE(ctx, s, REAL(strlen)(s) + 1); | |
92a42be0 SL |
3408 | // FIXME: under ASan the call below may write to freed memory and corrupt |
3409 | // its metadata. See | |
3157f602 | 3410 | // https://github.com/google/sanitizers/issues/321. |
1a4d82fc JJ |
3411 | int res = REAL(wordexp)(s, p, flags); |
3412 | if (!res && p) { | |
3413 | COMMON_INTERCEPTOR_WRITE_RANGE(ctx, p, sizeof(*p)); | |
3414 | if (p->we_wordc) | |
3415 | COMMON_INTERCEPTOR_WRITE_RANGE(ctx, p->we_wordv, | |
3416 | sizeof(*p->we_wordv) * p->we_wordc); | |
3417 | for (uptr i = 0; i < p->we_wordc; ++i) { | |
3418 | char *w = p->we_wordv[i]; | |
3419 | if (w) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, w, REAL(strlen)(w) + 1); | |
3420 | } | |
3421 | } | |
3422 | return res; | |
3423 | } | |
3424 | #define INIT_WORDEXP COMMON_INTERCEPT_FUNCTION(wordexp); | |
3425 | #else | |
3426 | #define INIT_WORDEXP | |
3427 | #endif | |
3428 | ||
3429 | #if SANITIZER_INTERCEPT_SIGWAIT | |
3430 | INTERCEPTOR(int, sigwait, __sanitizer_sigset_t *set, int *sig) { | |
3431 | void *ctx; | |
3432 | COMMON_INTERCEPTOR_ENTER(ctx, sigwait, set, sig); | |
3433 | // FIXME: read sigset_t when all of sigemptyset, etc are intercepted | |
92a42be0 SL |
3434 | // FIXME: under ASan the call below may write to freed memory and corrupt |
3435 | // its metadata. See | |
3157f602 | 3436 | // https://github.com/google/sanitizers/issues/321. |
1a4d82fc JJ |
3437 | int res = REAL(sigwait)(set, sig); |
3438 | if (!res && sig) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, sig, sizeof(*sig)); | |
3439 | return res; | |
3440 | } | |
3441 | #define INIT_SIGWAIT COMMON_INTERCEPT_FUNCTION(sigwait); | |
3442 | #else | |
3443 | #define INIT_SIGWAIT | |
3444 | #endif | |
3445 | ||
3446 | #if SANITIZER_INTERCEPT_SIGWAITINFO | |
3447 | INTERCEPTOR(int, sigwaitinfo, __sanitizer_sigset_t *set, void *info) { | |
3448 | void *ctx; | |
3449 | COMMON_INTERCEPTOR_ENTER(ctx, sigwaitinfo, set, info); | |
3450 | // FIXME: read sigset_t when all of sigemptyset, etc are intercepted | |
92a42be0 SL |
3451 | // FIXME: under ASan the call below may write to freed memory and corrupt |
3452 | // its metadata. See | |
3157f602 | 3453 | // https://github.com/google/sanitizers/issues/321. |
1a4d82fc JJ |
3454 | int res = REAL(sigwaitinfo)(set, info); |
3455 | if (res > 0 && info) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, info, siginfo_t_sz); | |
3456 | return res; | |
3457 | } | |
3458 | #define INIT_SIGWAITINFO COMMON_INTERCEPT_FUNCTION(sigwaitinfo); | |
3459 | #else | |
3460 | #define INIT_SIGWAITINFO | |
3461 | #endif | |
3462 | ||
3463 | #if SANITIZER_INTERCEPT_SIGTIMEDWAIT | |
3464 | INTERCEPTOR(int, sigtimedwait, __sanitizer_sigset_t *set, void *info, | |
3465 | void *timeout) { | |
3466 | void *ctx; | |
3467 | COMMON_INTERCEPTOR_ENTER(ctx, sigtimedwait, set, info, timeout); | |
3468 | if (timeout) COMMON_INTERCEPTOR_READ_RANGE(ctx, timeout, struct_timespec_sz); | |
3469 | // FIXME: read sigset_t when all of sigemptyset, etc are intercepted | |
92a42be0 SL |
3470 | // FIXME: under ASan the call below may write to freed memory and corrupt |
3471 | // its metadata. See | |
3157f602 | 3472 | // https://github.com/google/sanitizers/issues/321. |
1a4d82fc JJ |
3473 | int res = REAL(sigtimedwait)(set, info, timeout); |
3474 | if (res > 0 && info) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, info, siginfo_t_sz); | |
3475 | return res; | |
3476 | } | |
3477 | #define INIT_SIGTIMEDWAIT COMMON_INTERCEPT_FUNCTION(sigtimedwait); | |
3478 | #else | |
3479 | #define INIT_SIGTIMEDWAIT | |
3480 | #endif | |
3481 | ||
3482 | #if SANITIZER_INTERCEPT_SIGSETOPS | |
3483 | INTERCEPTOR(int, sigemptyset, __sanitizer_sigset_t *set) { | |
3484 | void *ctx; | |
3485 | COMMON_INTERCEPTOR_ENTER(ctx, sigemptyset, set); | |
92a42be0 SL |
3486 | // FIXME: under ASan the call below may write to freed memory and corrupt |
3487 | // its metadata. See | |
3157f602 | 3488 | // https://github.com/google/sanitizers/issues/321. |
1a4d82fc JJ |
3489 | int res = REAL(sigemptyset)(set); |
3490 | if (!res && set) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, set, sizeof(*set)); | |
3491 | return res; | |
3492 | } | |
3493 | ||
3494 | INTERCEPTOR(int, sigfillset, __sanitizer_sigset_t *set) { | |
3495 | void *ctx; | |
3496 | COMMON_INTERCEPTOR_ENTER(ctx, sigfillset, set); | |
92a42be0 SL |
3497 | // FIXME: under ASan the call below may write to freed memory and corrupt |
3498 | // its metadata. See | |
3157f602 | 3499 | // https://github.com/google/sanitizers/issues/321. |
1a4d82fc JJ |
3500 | int res = REAL(sigfillset)(set); |
3501 | if (!res && set) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, set, sizeof(*set)); | |
3502 | return res; | |
3503 | } | |
3504 | #define INIT_SIGSETOPS \ | |
3505 | COMMON_INTERCEPT_FUNCTION(sigemptyset); \ | |
3506 | COMMON_INTERCEPT_FUNCTION(sigfillset); | |
3507 | #else | |
3508 | #define INIT_SIGSETOPS | |
3509 | #endif | |
3510 | ||
3511 | #if SANITIZER_INTERCEPT_SIGPENDING | |
3512 | INTERCEPTOR(int, sigpending, __sanitizer_sigset_t *set) { | |
3513 | void *ctx; | |
3514 | COMMON_INTERCEPTOR_ENTER(ctx, sigpending, set); | |
92a42be0 SL |
3515 | // FIXME: under ASan the call below may write to freed memory and corrupt |
3516 | // its metadata. See | |
3157f602 | 3517 | // https://github.com/google/sanitizers/issues/321. |
1a4d82fc JJ |
3518 | int res = REAL(sigpending)(set); |
3519 | if (!res && set) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, set, sizeof(*set)); | |
3520 | return res; | |
3521 | } | |
3522 | #define INIT_SIGPENDING COMMON_INTERCEPT_FUNCTION(sigpending); | |
3523 | #else | |
3524 | #define INIT_SIGPENDING | |
3525 | #endif | |
3526 | ||
3527 | #if SANITIZER_INTERCEPT_SIGPROCMASK | |
3528 | INTERCEPTOR(int, sigprocmask, int how, __sanitizer_sigset_t *set, | |
3529 | __sanitizer_sigset_t *oldset) { | |
3530 | void *ctx; | |
3531 | COMMON_INTERCEPTOR_ENTER(ctx, sigprocmask, how, set, oldset); | |
3532 | // FIXME: read sigset_t when all of sigemptyset, etc are intercepted | |
92a42be0 SL |
3533 | // FIXME: under ASan the call below may write to freed memory and corrupt |
3534 | // its metadata. See | |
3157f602 | 3535 | // https://github.com/google/sanitizers/issues/321. |
1a4d82fc JJ |
3536 | int res = REAL(sigprocmask)(how, set, oldset); |
3537 | if (!res && oldset) | |
3538 | COMMON_INTERCEPTOR_WRITE_RANGE(ctx, oldset, sizeof(*oldset)); | |
3539 | return res; | |
3540 | } | |
3541 | #define INIT_SIGPROCMASK COMMON_INTERCEPT_FUNCTION(sigprocmask); | |
3542 | #else | |
3543 | #define INIT_SIGPROCMASK | |
3544 | #endif | |
3545 | ||
3546 | #if SANITIZER_INTERCEPT_BACKTRACE | |
3547 | INTERCEPTOR(int, backtrace, void **buffer, int size) { | |
3548 | void *ctx; | |
3549 | COMMON_INTERCEPTOR_ENTER(ctx, backtrace, buffer, size); | |
92a42be0 SL |
3550 | // FIXME: under ASan the call below may write to freed memory and corrupt |
3551 | // its metadata. See | |
3157f602 | 3552 | // https://github.com/google/sanitizers/issues/321. |
1a4d82fc JJ |
3553 | int res = REAL(backtrace)(buffer, size); |
3554 | if (res && buffer) | |
3555 | COMMON_INTERCEPTOR_WRITE_RANGE(ctx, buffer, res * sizeof(*buffer)); | |
3556 | return res; | |
3557 | } | |
3558 | ||
3559 | INTERCEPTOR(char **, backtrace_symbols, void **buffer, int size) { | |
3560 | void *ctx; | |
3561 | COMMON_INTERCEPTOR_ENTER(ctx, backtrace_symbols, buffer, size); | |
3562 | if (buffer && size) | |
3563 | COMMON_INTERCEPTOR_READ_RANGE(ctx, buffer, size * sizeof(*buffer)); | |
92a42be0 SL |
3564 | // FIXME: under ASan the call below may write to freed memory and corrupt |
3565 | // its metadata. See | |
3157f602 | 3566 | // https://github.com/google/sanitizers/issues/321. |
1a4d82fc JJ |
3567 | char **res = REAL(backtrace_symbols)(buffer, size); |
3568 | if (res && size) { | |
3569 | COMMON_INTERCEPTOR_WRITE_RANGE(ctx, res, size * sizeof(*res)); | |
3570 | for (int i = 0; i < size; ++i) | |
3571 | COMMON_INTERCEPTOR_WRITE_RANGE(ctx, res[i], REAL(strlen(res[i])) + 1); | |
3572 | } | |
3573 | return res; | |
3574 | } | |
3575 | #define INIT_BACKTRACE \ | |
3576 | COMMON_INTERCEPT_FUNCTION(backtrace); \ | |
3577 | COMMON_INTERCEPT_FUNCTION(backtrace_symbols); | |
3578 | #else | |
3579 | #define INIT_BACKTRACE | |
3580 | #endif | |
3581 | ||
3582 | #if SANITIZER_INTERCEPT__EXIT | |
3583 | INTERCEPTOR(void, _exit, int status) { | |
3584 | void *ctx; | |
3585 | COMMON_INTERCEPTOR_ENTER(ctx, _exit, status); | |
5bcae85e | 3586 | COMMON_INTERCEPTOR_USER_CALLBACK_START(); |
1a4d82fc | 3587 | int status1 = COMMON_INTERCEPTOR_ON_EXIT(ctx); |
5bcae85e | 3588 | COMMON_INTERCEPTOR_USER_CALLBACK_END(); |
1a4d82fc JJ |
3589 | if (status == 0) status = status1; |
3590 | REAL(_exit)(status); | |
3591 | } | |
3592 | #define INIT__EXIT COMMON_INTERCEPT_FUNCTION(_exit); | |
3593 | #else | |
3594 | #define INIT__EXIT | |
3595 | #endif | |
3596 | ||
3597 | #if SANITIZER_INTERCEPT_PHTREAD_MUTEX | |
3598 | INTERCEPTOR(int, pthread_mutex_lock, void *m) { | |
3599 | void *ctx; | |
3600 | COMMON_INTERCEPTOR_ENTER(ctx, pthread_mutex_lock, m); | |
3601 | int res = REAL(pthread_mutex_lock)(m); | |
3602 | if (res == errno_EOWNERDEAD) | |
3603 | COMMON_INTERCEPTOR_MUTEX_REPAIR(ctx, m); | |
3604 | if (res == 0 || res == errno_EOWNERDEAD) | |
3605 | COMMON_INTERCEPTOR_MUTEX_LOCK(ctx, m); | |
5bcae85e SL |
3606 | if (res == errno_EINVAL) |
3607 | COMMON_INTERCEPTOR_MUTEX_INVALID(ctx, m); | |
1a4d82fc JJ |
3608 | return res; |
3609 | } | |
3610 | ||
3611 | INTERCEPTOR(int, pthread_mutex_unlock, void *m) { | |
3612 | void *ctx; | |
3613 | COMMON_INTERCEPTOR_ENTER(ctx, pthread_mutex_unlock, m); | |
3614 | COMMON_INTERCEPTOR_MUTEX_UNLOCK(ctx, m); | |
5bcae85e SL |
3615 | int res = REAL(pthread_mutex_unlock)(m); |
3616 | if (res == errno_EINVAL) | |
3617 | COMMON_INTERCEPTOR_MUTEX_INVALID(ctx, m); | |
3618 | return res; | |
1a4d82fc JJ |
3619 | } |
3620 | ||
3621 | #define INIT_PTHREAD_MUTEX_LOCK COMMON_INTERCEPT_FUNCTION(pthread_mutex_lock) | |
3622 | #define INIT_PTHREAD_MUTEX_UNLOCK \ | |
3623 | COMMON_INTERCEPT_FUNCTION(pthread_mutex_unlock) | |
3624 | #else | |
3625 | #define INIT_PTHREAD_MUTEX_LOCK | |
3626 | #define INIT_PTHREAD_MUTEX_UNLOCK | |
3627 | #endif | |
3628 | ||
3629 | #if SANITIZER_INTERCEPT_GETMNTENT || SANITIZER_INTERCEPT_GETMNTENT_R | |
3630 | static void write_mntent(void *ctx, __sanitizer_mntent *mnt) { | |
3631 | COMMON_INTERCEPTOR_WRITE_RANGE(ctx, mnt, sizeof(*mnt)); | |
3632 | if (mnt->mnt_fsname) | |
3633 | COMMON_INTERCEPTOR_WRITE_RANGE(ctx, mnt->mnt_fsname, | |
3634 | REAL(strlen)(mnt->mnt_fsname) + 1); | |
3635 | if (mnt->mnt_dir) | |
3636 | COMMON_INTERCEPTOR_WRITE_RANGE(ctx, mnt->mnt_dir, | |
3637 | REAL(strlen)(mnt->mnt_dir) + 1); | |
3638 | if (mnt->mnt_type) | |
3639 | COMMON_INTERCEPTOR_WRITE_RANGE(ctx, mnt->mnt_type, | |
3640 | REAL(strlen)(mnt->mnt_type) + 1); | |
3641 | if (mnt->mnt_opts) | |
3642 | COMMON_INTERCEPTOR_WRITE_RANGE(ctx, mnt->mnt_opts, | |
3643 | REAL(strlen)(mnt->mnt_opts) + 1); | |
3644 | } | |
3645 | #endif | |
3646 | ||
3647 | #if SANITIZER_INTERCEPT_GETMNTENT | |
3648 | INTERCEPTOR(__sanitizer_mntent *, getmntent, void *fp) { | |
3649 | void *ctx; | |
3650 | COMMON_INTERCEPTOR_ENTER(ctx, getmntent, fp); | |
3651 | __sanitizer_mntent *res = REAL(getmntent)(fp); | |
3652 | if (res) write_mntent(ctx, res); | |
3653 | return res; | |
3654 | } | |
3655 | #define INIT_GETMNTENT COMMON_INTERCEPT_FUNCTION(getmntent); | |
3656 | #else | |
3657 | #define INIT_GETMNTENT | |
3658 | #endif | |
3659 | ||
3660 | #if SANITIZER_INTERCEPT_GETMNTENT_R | |
3661 | INTERCEPTOR(__sanitizer_mntent *, getmntent_r, void *fp, | |
3662 | __sanitizer_mntent *mntbuf, char *buf, int buflen) { | |
3663 | void *ctx; | |
3664 | COMMON_INTERCEPTOR_ENTER(ctx, getmntent_r, fp, mntbuf, buf, buflen); | |
3665 | __sanitizer_mntent *res = REAL(getmntent_r)(fp, mntbuf, buf, buflen); | |
3666 | if (res) write_mntent(ctx, res); | |
3667 | return res; | |
3668 | } | |
3669 | #define INIT_GETMNTENT_R COMMON_INTERCEPT_FUNCTION(getmntent_r); | |
3670 | #else | |
3671 | #define INIT_GETMNTENT_R | |
3672 | #endif | |
3673 | ||
3674 | #if SANITIZER_INTERCEPT_STATFS | |
3675 | INTERCEPTOR(int, statfs, char *path, void *buf) { | |
3676 | void *ctx; | |
3677 | COMMON_INTERCEPTOR_ENTER(ctx, statfs, path, buf); | |
3678 | if (path) COMMON_INTERCEPTOR_READ_RANGE(ctx, path, REAL(strlen)(path) + 1); | |
92a42be0 SL |
3679 | // FIXME: under ASan the call below may write to freed memory and corrupt |
3680 | // its metadata. See | |
3157f602 | 3681 | // https://github.com/google/sanitizers/issues/321. |
1a4d82fc JJ |
3682 | int res = REAL(statfs)(path, buf); |
3683 | if (!res) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, buf, struct_statfs_sz); | |
3684 | return res; | |
3685 | } | |
3686 | INTERCEPTOR(int, fstatfs, int fd, void *buf) { | |
3687 | void *ctx; | |
3688 | COMMON_INTERCEPTOR_ENTER(ctx, fstatfs, fd, buf); | |
92a42be0 SL |
3689 | // FIXME: under ASan the call below may write to freed memory and corrupt |
3690 | // its metadata. See | |
3157f602 | 3691 | // https://github.com/google/sanitizers/issues/321. |
1a4d82fc JJ |
3692 | int res = REAL(fstatfs)(fd, buf); |
3693 | if (!res) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, buf, struct_statfs_sz); | |
3694 | return res; | |
3695 | } | |
3696 | #define INIT_STATFS \ | |
3697 | COMMON_INTERCEPT_FUNCTION(statfs); \ | |
3698 | COMMON_INTERCEPT_FUNCTION(fstatfs); | |
3699 | #else | |
3700 | #define INIT_STATFS | |
3701 | #endif | |
3702 | ||
3703 | #if SANITIZER_INTERCEPT_STATFS64 | |
3704 | INTERCEPTOR(int, statfs64, char *path, void *buf) { | |
3705 | void *ctx; | |
3706 | COMMON_INTERCEPTOR_ENTER(ctx, statfs64, path, buf); | |
3707 | if (path) COMMON_INTERCEPTOR_READ_RANGE(ctx, path, REAL(strlen)(path) + 1); | |
92a42be0 SL |
3708 | // FIXME: under ASan the call below may write to freed memory and corrupt |
3709 | // its metadata. See | |
3157f602 | 3710 | // https://github.com/google/sanitizers/issues/321. |
1a4d82fc JJ |
3711 | int res = REAL(statfs64)(path, buf); |
3712 | if (!res) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, buf, struct_statfs64_sz); | |
3713 | return res; | |
3714 | } | |
3715 | INTERCEPTOR(int, fstatfs64, int fd, void *buf) { | |
3716 | void *ctx; | |
3717 | COMMON_INTERCEPTOR_ENTER(ctx, fstatfs64, fd, buf); | |
92a42be0 SL |
3718 | // FIXME: under ASan the call below may write to freed memory and corrupt |
3719 | // its metadata. See | |
3157f602 | 3720 | // https://github.com/google/sanitizers/issues/321. |
1a4d82fc JJ |
3721 | int res = REAL(fstatfs64)(fd, buf); |
3722 | if (!res) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, buf, struct_statfs64_sz); | |
3723 | return res; | |
3724 | } | |
3725 | #define INIT_STATFS64 \ | |
3726 | COMMON_INTERCEPT_FUNCTION(statfs64); \ | |
3727 | COMMON_INTERCEPT_FUNCTION(fstatfs64); | |
3728 | #else | |
3729 | #define INIT_STATFS64 | |
3730 | #endif | |
3731 | ||
3732 | #if SANITIZER_INTERCEPT_STATVFS | |
3733 | INTERCEPTOR(int, statvfs, char *path, void *buf) { | |
3734 | void *ctx; | |
3735 | COMMON_INTERCEPTOR_ENTER(ctx, statvfs, path, buf); | |
3736 | if (path) COMMON_INTERCEPTOR_READ_RANGE(ctx, path, REAL(strlen)(path) + 1); | |
92a42be0 SL |
3737 | // FIXME: under ASan the call below may write to freed memory and corrupt |
3738 | // its metadata. See | |
3157f602 | 3739 | // https://github.com/google/sanitizers/issues/321. |
1a4d82fc JJ |
3740 | int res = REAL(statvfs)(path, buf); |
3741 | if (!res) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, buf, struct_statvfs_sz); | |
3742 | return res; | |
3743 | } | |
3744 | INTERCEPTOR(int, fstatvfs, int fd, void *buf) { | |
3745 | void *ctx; | |
3746 | COMMON_INTERCEPTOR_ENTER(ctx, fstatvfs, fd, buf); | |
92a42be0 SL |
3747 | // FIXME: under ASan the call below may write to freed memory and corrupt |
3748 | // its metadata. See | |
3157f602 | 3749 | // https://github.com/google/sanitizers/issues/321. |
1a4d82fc JJ |
3750 | int res = REAL(fstatvfs)(fd, buf); |
3751 | if (!res) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, buf, struct_statvfs_sz); | |
3752 | return res; | |
3753 | } | |
3754 | #define INIT_STATVFS \ | |
3755 | COMMON_INTERCEPT_FUNCTION(statvfs); \ | |
3756 | COMMON_INTERCEPT_FUNCTION(fstatvfs); | |
3757 | #else | |
3758 | #define INIT_STATVFS | |
3759 | #endif | |
3760 | ||
3761 | #if SANITIZER_INTERCEPT_STATVFS64 | |
3762 | INTERCEPTOR(int, statvfs64, char *path, void *buf) { | |
3763 | void *ctx; | |
3764 | COMMON_INTERCEPTOR_ENTER(ctx, statvfs64, path, buf); | |
3765 | if (path) COMMON_INTERCEPTOR_READ_RANGE(ctx, path, REAL(strlen)(path) + 1); | |
92a42be0 SL |
3766 | // FIXME: under ASan the call below may write to freed memory and corrupt |
3767 | // its metadata. See | |
3157f602 | 3768 | // https://github.com/google/sanitizers/issues/321. |
1a4d82fc JJ |
3769 | int res = REAL(statvfs64)(path, buf); |
3770 | if (!res) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, buf, struct_statvfs64_sz); | |
3771 | return res; | |
3772 | } | |
3773 | INTERCEPTOR(int, fstatvfs64, int fd, void *buf) { | |
3774 | void *ctx; | |
3775 | COMMON_INTERCEPTOR_ENTER(ctx, fstatvfs64, fd, buf); | |
92a42be0 SL |
3776 | // FIXME: under ASan the call below may write to freed memory and corrupt |
3777 | // its metadata. See | |
3157f602 | 3778 | // https://github.com/google/sanitizers/issues/321. |
1a4d82fc JJ |
3779 | int res = REAL(fstatvfs64)(fd, buf); |
3780 | if (!res) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, buf, struct_statvfs64_sz); | |
3781 | return res; | |
3782 | } | |
3783 | #define INIT_STATVFS64 \ | |
3784 | COMMON_INTERCEPT_FUNCTION(statvfs64); \ | |
3785 | COMMON_INTERCEPT_FUNCTION(fstatvfs64); | |
3786 | #else | |
3787 | #define INIT_STATVFS64 | |
3788 | #endif | |
3789 | ||
3790 | #if SANITIZER_INTERCEPT_INITGROUPS | |
3791 | INTERCEPTOR(int, initgroups, char *user, u32 group) { | |
3792 | void *ctx; | |
3793 | COMMON_INTERCEPTOR_ENTER(ctx, initgroups, user, group); | |
3794 | if (user) COMMON_INTERCEPTOR_READ_RANGE(ctx, user, REAL(strlen)(user) + 1); | |
3795 | int res = REAL(initgroups)(user, group); | |
3796 | return res; | |
3797 | } | |
3798 | #define INIT_INITGROUPS COMMON_INTERCEPT_FUNCTION(initgroups); | |
3799 | #else | |
3800 | #define INIT_INITGROUPS | |
3801 | #endif | |
3802 | ||
92a42be0 | 3803 | #if SANITIZER_INTERCEPT_ETHER_NTOA_ATON |
1a4d82fc JJ |
3804 | INTERCEPTOR(char *, ether_ntoa, __sanitizer_ether_addr *addr) { |
3805 | void *ctx; | |
3806 | COMMON_INTERCEPTOR_ENTER(ctx, ether_ntoa, addr); | |
3807 | if (addr) COMMON_INTERCEPTOR_READ_RANGE(ctx, addr, sizeof(*addr)); | |
3808 | char *res = REAL(ether_ntoa)(addr); | |
3809 | if (res) COMMON_INTERCEPTOR_INITIALIZE_RANGE(res, REAL(strlen)(res) + 1); | |
3810 | return res; | |
3811 | } | |
3812 | INTERCEPTOR(__sanitizer_ether_addr *, ether_aton, char *buf) { | |
3813 | void *ctx; | |
3814 | COMMON_INTERCEPTOR_ENTER(ctx, ether_aton, buf); | |
3815 | if (buf) COMMON_INTERCEPTOR_READ_RANGE(ctx, buf, REAL(strlen)(buf) + 1); | |
3816 | __sanitizer_ether_addr *res = REAL(ether_aton)(buf); | |
3817 | if (res) COMMON_INTERCEPTOR_INITIALIZE_RANGE(res, sizeof(*res)); | |
3818 | return res; | |
3819 | } | |
92a42be0 SL |
3820 | #define INIT_ETHER_NTOA_ATON \ |
3821 | COMMON_INTERCEPT_FUNCTION(ether_ntoa); \ | |
3822 | COMMON_INTERCEPT_FUNCTION(ether_aton); | |
3823 | #else | |
3824 | #define INIT_ETHER_NTOA_ATON | |
3825 | #endif | |
3826 | ||
3827 | #if SANITIZER_INTERCEPT_ETHER_HOST | |
1a4d82fc JJ |
3828 | INTERCEPTOR(int, ether_ntohost, char *hostname, __sanitizer_ether_addr *addr) { |
3829 | void *ctx; | |
3830 | COMMON_INTERCEPTOR_ENTER(ctx, ether_ntohost, hostname, addr); | |
3831 | if (addr) COMMON_INTERCEPTOR_READ_RANGE(ctx, addr, sizeof(*addr)); | |
92a42be0 SL |
3832 | // FIXME: under ASan the call below may write to freed memory and corrupt |
3833 | // its metadata. See | |
3157f602 | 3834 | // https://github.com/google/sanitizers/issues/321. |
1a4d82fc JJ |
3835 | int res = REAL(ether_ntohost)(hostname, addr); |
3836 | if (!res && hostname) | |
3837 | COMMON_INTERCEPTOR_WRITE_RANGE(ctx, hostname, REAL(strlen)(hostname) + 1); | |
3838 | return res; | |
3839 | } | |
3840 | INTERCEPTOR(int, ether_hostton, char *hostname, __sanitizer_ether_addr *addr) { | |
3841 | void *ctx; | |
3842 | COMMON_INTERCEPTOR_ENTER(ctx, ether_hostton, hostname, addr); | |
3843 | if (hostname) | |
3844 | COMMON_INTERCEPTOR_READ_RANGE(ctx, hostname, REAL(strlen)(hostname) + 1); | |
92a42be0 SL |
3845 | // FIXME: under ASan the call below may write to freed memory and corrupt |
3846 | // its metadata. See | |
3157f602 | 3847 | // https://github.com/google/sanitizers/issues/321. |
1a4d82fc JJ |
3848 | int res = REAL(ether_hostton)(hostname, addr); |
3849 | if (!res && addr) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, addr, sizeof(*addr)); | |
3850 | return res; | |
3851 | } | |
3852 | INTERCEPTOR(int, ether_line, char *line, __sanitizer_ether_addr *addr, | |
3853 | char *hostname) { | |
3854 | void *ctx; | |
3855 | COMMON_INTERCEPTOR_ENTER(ctx, ether_line, line, addr, hostname); | |
3856 | if (line) COMMON_INTERCEPTOR_READ_RANGE(ctx, line, REAL(strlen)(line) + 1); | |
92a42be0 SL |
3857 | // FIXME: under ASan the call below may write to freed memory and corrupt |
3858 | // its metadata. See | |
3157f602 | 3859 | // https://github.com/google/sanitizers/issues/321. |
1a4d82fc JJ |
3860 | int res = REAL(ether_line)(line, addr, hostname); |
3861 | if (!res) { | |
3862 | if (addr) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, addr, sizeof(*addr)); | |
3863 | if (hostname) | |
3864 | COMMON_INTERCEPTOR_WRITE_RANGE(ctx, hostname, REAL(strlen)(hostname) + 1); | |
3865 | } | |
3866 | return res; | |
3867 | } | |
92a42be0 | 3868 | #define INIT_ETHER_HOST \ |
1a4d82fc JJ |
3869 | COMMON_INTERCEPT_FUNCTION(ether_ntohost); \ |
3870 | COMMON_INTERCEPT_FUNCTION(ether_hostton); \ | |
3871 | COMMON_INTERCEPT_FUNCTION(ether_line); | |
3872 | #else | |
92a42be0 | 3873 | #define INIT_ETHER_HOST |
1a4d82fc JJ |
3874 | #endif |
3875 | ||
3876 | #if SANITIZER_INTERCEPT_ETHER_R | |
3877 | INTERCEPTOR(char *, ether_ntoa_r, __sanitizer_ether_addr *addr, char *buf) { | |
3878 | void *ctx; | |
3879 | COMMON_INTERCEPTOR_ENTER(ctx, ether_ntoa_r, addr, buf); | |
3880 | if (addr) COMMON_INTERCEPTOR_READ_RANGE(ctx, addr, sizeof(*addr)); | |
92a42be0 SL |
3881 | // FIXME: under ASan the call below may write to freed memory and corrupt |
3882 | // its metadata. See | |
3157f602 | 3883 | // https://github.com/google/sanitizers/issues/321. |
1a4d82fc JJ |
3884 | char *res = REAL(ether_ntoa_r)(addr, buf); |
3885 | if (res) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, res, REAL(strlen)(res) + 1); | |
3886 | return res; | |
3887 | } | |
3888 | INTERCEPTOR(__sanitizer_ether_addr *, ether_aton_r, char *buf, | |
3889 | __sanitizer_ether_addr *addr) { | |
3890 | void *ctx; | |
3891 | COMMON_INTERCEPTOR_ENTER(ctx, ether_aton_r, buf, addr); | |
3892 | if (buf) COMMON_INTERCEPTOR_READ_RANGE(ctx, buf, REAL(strlen)(buf) + 1); | |
92a42be0 SL |
3893 | // FIXME: under ASan the call below may write to freed memory and corrupt |
3894 | // its metadata. See | |
3157f602 | 3895 | // https://github.com/google/sanitizers/issues/321. |
1a4d82fc JJ |
3896 | __sanitizer_ether_addr *res = REAL(ether_aton_r)(buf, addr); |
3897 | if (res) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, res, sizeof(*res)); | |
3898 | return res; | |
3899 | } | |
3900 | #define INIT_ETHER_R \ | |
3901 | COMMON_INTERCEPT_FUNCTION(ether_ntoa_r); \ | |
3902 | COMMON_INTERCEPT_FUNCTION(ether_aton_r); | |
3903 | #else | |
3904 | #define INIT_ETHER_R | |
3905 | #endif | |
3906 | ||
3907 | #if SANITIZER_INTERCEPT_SHMCTL | |
3908 | INTERCEPTOR(int, shmctl, int shmid, int cmd, void *buf) { | |
3909 | void *ctx; | |
3910 | COMMON_INTERCEPTOR_ENTER(ctx, shmctl, shmid, cmd, buf); | |
92a42be0 SL |
3911 | // FIXME: under ASan the call below may write to freed memory and corrupt |
3912 | // its metadata. See | |
3157f602 | 3913 | // https://github.com/google/sanitizers/issues/321. |
1a4d82fc JJ |
3914 | int res = REAL(shmctl)(shmid, cmd, buf); |
3915 | if (res >= 0) { | |
3916 | unsigned sz = 0; | |
3917 | if (cmd == shmctl_ipc_stat || cmd == shmctl_shm_stat) | |
3918 | sz = sizeof(__sanitizer_shmid_ds); | |
3919 | else if (cmd == shmctl_ipc_info) | |
3920 | sz = struct_shminfo_sz; | |
3921 | else if (cmd == shmctl_shm_info) | |
3922 | sz = struct_shm_info_sz; | |
3923 | if (sz) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, buf, sz); | |
3924 | } | |
3925 | return res; | |
3926 | } | |
3927 | #define INIT_SHMCTL COMMON_INTERCEPT_FUNCTION(shmctl); | |
3928 | #else | |
3929 | #define INIT_SHMCTL | |
3930 | #endif | |
3931 | ||
3932 | #if SANITIZER_INTERCEPT_RANDOM_R | |
3933 | INTERCEPTOR(int, random_r, void *buf, u32 *result) { | |
3934 | void *ctx; | |
3935 | COMMON_INTERCEPTOR_ENTER(ctx, random_r, buf, result); | |
92a42be0 SL |
3936 | // FIXME: under ASan the call below may write to freed memory and corrupt |
3937 | // its metadata. See | |
3157f602 | 3938 | // https://github.com/google/sanitizers/issues/321. |
1a4d82fc JJ |
3939 | int res = REAL(random_r)(buf, result); |
3940 | if (!res && result) | |
3941 | COMMON_INTERCEPTOR_WRITE_RANGE(ctx, result, sizeof(*result)); | |
3942 | return res; | |
3943 | } | |
3944 | #define INIT_RANDOM_R COMMON_INTERCEPT_FUNCTION(random_r); | |
3945 | #else | |
3946 | #define INIT_RANDOM_R | |
3947 | #endif | |
3948 | ||
92a42be0 SL |
3949 | // FIXME: under ASan the REAL() call below may write to freed memory and corrupt |
3950 | // its metadata. See | |
3157f602 | 3951 | // https://github.com/google/sanitizers/issues/321. |
92a42be0 SL |
3952 | #if SANITIZER_INTERCEPT_PTHREAD_ATTR_GET || \ |
3953 | SANITIZER_INTERCEPT_PTHREAD_ATTR_GETINHERITSSCHED || \ | |
3954 | SANITIZER_INTERCEPT_PTHREAD_MUTEXATTR_GET || \ | |
3955 | SANITIZER_INTERCEPT_PTHREAD_RWLOCKATTR_GET || \ | |
3956 | SANITIZER_INTERCEPT_PTHREAD_CONDATTR_GET || \ | |
3957 | SANITIZER_INTERCEPT_PTHREAD_BARRIERATTR_GET | |
3958 | #define INTERCEPTOR_PTHREAD_OBJECT_ATTR_GET(fn, sz) \ | |
3959 | INTERCEPTOR(int, fn, void *attr, void *r) { \ | |
3960 | void *ctx; \ | |
3961 | COMMON_INTERCEPTOR_ENTER(ctx, fn, attr, r); \ | |
3962 | int res = REAL(fn)(attr, r); \ | |
3963 | if (!res && r) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, r, sz); \ | |
3964 | return res; \ | |
1a4d82fc | 3965 | } |
92a42be0 SL |
3966 | #define INTERCEPTOR_PTHREAD_ATTR_GET(what, sz) \ |
3967 | INTERCEPTOR_PTHREAD_OBJECT_ATTR_GET(pthread_attr_get##what, sz) | |
3968 | #define INTERCEPTOR_PTHREAD_MUTEXATTR_GET(what, sz) \ | |
3969 | INTERCEPTOR_PTHREAD_OBJECT_ATTR_GET(pthread_mutexattr_get##what, sz) | |
3970 | #define INTERCEPTOR_PTHREAD_RWLOCKATTR_GET(what, sz) \ | |
3971 | INTERCEPTOR_PTHREAD_OBJECT_ATTR_GET(pthread_rwlockattr_get##what, sz) | |
3972 | #define INTERCEPTOR_PTHREAD_CONDATTR_GET(what, sz) \ | |
3973 | INTERCEPTOR_PTHREAD_OBJECT_ATTR_GET(pthread_condattr_get##what, sz) | |
3974 | #define INTERCEPTOR_PTHREAD_BARRIERATTR_GET(what, sz) \ | |
3975 | INTERCEPTOR_PTHREAD_OBJECT_ATTR_GET(pthread_barrierattr_get##what, sz) | |
1a4d82fc JJ |
3976 | #endif |
3977 | ||
3978 | #if SANITIZER_INTERCEPT_PTHREAD_ATTR_GET | |
3979 | INTERCEPTOR_PTHREAD_ATTR_GET(detachstate, sizeof(int)) | |
3980 | INTERCEPTOR_PTHREAD_ATTR_GET(guardsize, sizeof(SIZE_T)) | |
3981 | INTERCEPTOR_PTHREAD_ATTR_GET(schedparam, struct_sched_param_sz) | |
3982 | INTERCEPTOR_PTHREAD_ATTR_GET(schedpolicy, sizeof(int)) | |
3983 | INTERCEPTOR_PTHREAD_ATTR_GET(scope, sizeof(int)) | |
3984 | INTERCEPTOR_PTHREAD_ATTR_GET(stacksize, sizeof(SIZE_T)) | |
3985 | INTERCEPTOR(int, pthread_attr_getstack, void *attr, void **addr, SIZE_T *size) { | |
3986 | void *ctx; | |
3987 | COMMON_INTERCEPTOR_ENTER(ctx, pthread_attr_getstack, attr, addr, size); | |
92a42be0 SL |
3988 | // FIXME: under ASan the call below may write to freed memory and corrupt |
3989 | // its metadata. See | |
3157f602 | 3990 | // https://github.com/google/sanitizers/issues/321. |
1a4d82fc JJ |
3991 | int res = REAL(pthread_attr_getstack)(attr, addr, size); |
3992 | if (!res) { | |
3993 | if (addr) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, addr, sizeof(*addr)); | |
3994 | if (size) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, size, sizeof(*size)); | |
3995 | } | |
3996 | return res; | |
3997 | } | |
3998 | ||
3999 | // We may need to call the real pthread_attr_getstack from the run-time | |
4000 | // in sanitizer_common, but we don't want to include the interception headers | |
4001 | // there. So, just define this function here. | |
4002 | namespace __sanitizer { | |
4003 | extern "C" { | |
4004 | int real_pthread_attr_getstack(void *attr, void **addr, SIZE_T *size) { | |
4005 | return REAL(pthread_attr_getstack)(attr, addr, size); | |
4006 | } | |
4007 | } // extern "C" | |
4008 | } // namespace __sanitizer | |
4009 | ||
4010 | #define INIT_PTHREAD_ATTR_GET \ | |
4011 | COMMON_INTERCEPT_FUNCTION(pthread_attr_getdetachstate); \ | |
4012 | COMMON_INTERCEPT_FUNCTION(pthread_attr_getguardsize); \ | |
4013 | COMMON_INTERCEPT_FUNCTION(pthread_attr_getschedparam); \ | |
4014 | COMMON_INTERCEPT_FUNCTION(pthread_attr_getschedpolicy); \ | |
4015 | COMMON_INTERCEPT_FUNCTION(pthread_attr_getscope); \ | |
4016 | COMMON_INTERCEPT_FUNCTION(pthread_attr_getstacksize); \ | |
4017 | COMMON_INTERCEPT_FUNCTION(pthread_attr_getstack); | |
4018 | #else | |
4019 | #define INIT_PTHREAD_ATTR_GET | |
4020 | #endif | |
4021 | ||
4022 | #if SANITIZER_INTERCEPT_PTHREAD_ATTR_GETINHERITSCHED | |
4023 | INTERCEPTOR_PTHREAD_ATTR_GET(inheritsched, sizeof(int)) | |
4024 | ||
4025 | #define INIT_PTHREAD_ATTR_GETINHERITSCHED \ | |
4026 | COMMON_INTERCEPT_FUNCTION(pthread_attr_getinheritsched); | |
4027 | #else | |
4028 | #define INIT_PTHREAD_ATTR_GETINHERITSCHED | |
4029 | #endif | |
4030 | ||
4031 | #if SANITIZER_INTERCEPT_PTHREAD_ATTR_GETAFFINITY_NP | |
4032 | INTERCEPTOR(int, pthread_attr_getaffinity_np, void *attr, SIZE_T cpusetsize, | |
4033 | void *cpuset) { | |
4034 | void *ctx; | |
4035 | COMMON_INTERCEPTOR_ENTER(ctx, pthread_attr_getaffinity_np, attr, cpusetsize, | |
4036 | cpuset); | |
92a42be0 SL |
4037 | // FIXME: under ASan the call below may write to freed memory and corrupt |
4038 | // its metadata. See | |
3157f602 | 4039 | // https://github.com/google/sanitizers/issues/321. |
1a4d82fc JJ |
4040 | int res = REAL(pthread_attr_getaffinity_np)(attr, cpusetsize, cpuset); |
4041 | if (!res && cpusetsize && cpuset) | |
4042 | COMMON_INTERCEPTOR_WRITE_RANGE(ctx, cpuset, cpusetsize); | |
4043 | return res; | |
4044 | } | |
4045 | ||
4046 | #define INIT_PTHREAD_ATTR_GETAFFINITY_NP \ | |
4047 | COMMON_INTERCEPT_FUNCTION(pthread_attr_getaffinity_np); | |
4048 | #else | |
4049 | #define INIT_PTHREAD_ATTR_GETAFFINITY_NP | |
4050 | #endif | |
4051 | ||
92a42be0 SL |
4052 | #if SANITIZER_INTERCEPT_PTHREAD_MUTEXATTR_GETPSHARED |
4053 | INTERCEPTOR_PTHREAD_MUTEXATTR_GET(pshared, sizeof(int)) | |
4054 | #define INIT_PTHREAD_MUTEXATTR_GETPSHARED \ | |
4055 | COMMON_INTERCEPT_FUNCTION(pthread_mutexattr_getpshared); | |
4056 | #else | |
4057 | #define INIT_PTHREAD_MUTEXATTR_GETPSHARED | |
4058 | #endif | |
4059 | ||
4060 | #if SANITIZER_INTERCEPT_PTHREAD_MUTEXATTR_GETTYPE | |
4061 | INTERCEPTOR_PTHREAD_MUTEXATTR_GET(type, sizeof(int)) | |
4062 | #define INIT_PTHREAD_MUTEXATTR_GETTYPE \ | |
4063 | COMMON_INTERCEPT_FUNCTION(pthread_mutexattr_gettype); | |
4064 | #else | |
4065 | #define INIT_PTHREAD_MUTEXATTR_GETTYPE | |
4066 | #endif | |
4067 | ||
4068 | #if SANITIZER_INTERCEPT_PTHREAD_MUTEXATTR_GETPROTOCOL | |
4069 | INTERCEPTOR_PTHREAD_MUTEXATTR_GET(protocol, sizeof(int)) | |
4070 | #define INIT_PTHREAD_MUTEXATTR_GETPROTOCOL \ | |
4071 | COMMON_INTERCEPT_FUNCTION(pthread_mutexattr_getprotocol); | |
4072 | #else | |
4073 | #define INIT_PTHREAD_MUTEXATTR_GETPROTOCOL | |
4074 | #endif | |
4075 | ||
4076 | #if SANITIZER_INTERCEPT_PTHREAD_MUTEXATTR_GETPRIOCEILING | |
4077 | INTERCEPTOR_PTHREAD_MUTEXATTR_GET(prioceiling, sizeof(int)) | |
4078 | #define INIT_PTHREAD_MUTEXATTR_GETPRIOCEILING \ | |
4079 | COMMON_INTERCEPT_FUNCTION(pthread_mutexattr_getprioceiling); | |
4080 | #else | |
4081 | #define INIT_PTHREAD_MUTEXATTR_GETPRIOCEILING | |
4082 | #endif | |
4083 | ||
4084 | #if SANITIZER_INTERCEPT_PTHREAD_MUTEXATTR_GETROBUST | |
4085 | INTERCEPTOR_PTHREAD_MUTEXATTR_GET(robust, sizeof(int)) | |
4086 | #define INIT_PTHREAD_MUTEXATTR_GETROBUST \ | |
4087 | COMMON_INTERCEPT_FUNCTION(pthread_mutexattr_getrobust); | |
4088 | #else | |
4089 | #define INIT_PTHREAD_MUTEXATTR_GETROBUST | |
4090 | #endif | |
4091 | ||
4092 | #if SANITIZER_INTERCEPT_PTHREAD_MUTEXATTR_GETROBUST_NP | |
4093 | INTERCEPTOR_PTHREAD_MUTEXATTR_GET(robust_np, sizeof(int)) | |
4094 | #define INIT_PTHREAD_MUTEXATTR_GETROBUST_NP \ | |
4095 | COMMON_INTERCEPT_FUNCTION(pthread_mutexattr_getrobust_np); | |
4096 | #else | |
4097 | #define INIT_PTHREAD_MUTEXATTR_GETROBUST_NP | |
4098 | #endif | |
4099 | ||
4100 | #if SANITIZER_INTERCEPT_PTHREAD_RWLOCKATTR_GETPSHARED | |
4101 | INTERCEPTOR_PTHREAD_RWLOCKATTR_GET(pshared, sizeof(int)) | |
4102 | #define INIT_PTHREAD_RWLOCKATTR_GETPSHARED \ | |
4103 | COMMON_INTERCEPT_FUNCTION(pthread_rwlockattr_getpshared); | |
4104 | #else | |
4105 | #define INIT_PTHREAD_RWLOCKATTR_GETPSHARED | |
4106 | #endif | |
4107 | ||
4108 | #if SANITIZER_INTERCEPT_PTHREAD_RWLOCKATTR_GETKIND_NP | |
4109 | INTERCEPTOR_PTHREAD_RWLOCKATTR_GET(kind_np, sizeof(int)) | |
4110 | #define INIT_PTHREAD_RWLOCKATTR_GETKIND_NP \ | |
4111 | COMMON_INTERCEPT_FUNCTION(pthread_rwlockattr_getkind_np); | |
4112 | #else | |
4113 | #define INIT_PTHREAD_RWLOCKATTR_GETKIND_NP | |
4114 | #endif | |
4115 | ||
4116 | #if SANITIZER_INTERCEPT_PTHREAD_CONDATTR_GETPSHARED | |
4117 | INTERCEPTOR_PTHREAD_CONDATTR_GET(pshared, sizeof(int)) | |
4118 | #define INIT_PTHREAD_CONDATTR_GETPSHARED \ | |
4119 | COMMON_INTERCEPT_FUNCTION(pthread_condattr_getpshared); | |
4120 | #else | |
4121 | #define INIT_PTHREAD_CONDATTR_GETPSHARED | |
4122 | #endif | |
4123 | ||
4124 | #if SANITIZER_INTERCEPT_PTHREAD_CONDATTR_GETCLOCK | |
4125 | INTERCEPTOR_PTHREAD_CONDATTR_GET(clock, sizeof(int)) | |
4126 | #define INIT_PTHREAD_CONDATTR_GETCLOCK \ | |
4127 | COMMON_INTERCEPT_FUNCTION(pthread_condattr_getclock); | |
4128 | #else | |
4129 | #define INIT_PTHREAD_CONDATTR_GETCLOCK | |
4130 | #endif | |
4131 | ||
4132 | #if SANITIZER_INTERCEPT_PTHREAD_BARRIERATTR_GETPSHARED | |
4133 | INTERCEPTOR_PTHREAD_BARRIERATTR_GET(pshared, sizeof(int)) // !mac !android | |
4134 | #define INIT_PTHREAD_BARRIERATTR_GETPSHARED \ | |
4135 | COMMON_INTERCEPT_FUNCTION(pthread_barrierattr_getpshared); | |
4136 | #else | |
4137 | #define INIT_PTHREAD_BARRIERATTR_GETPSHARED | |
4138 | #endif | |
4139 | ||
1a4d82fc JJ |
4140 | #if SANITIZER_INTERCEPT_TMPNAM |
4141 | INTERCEPTOR(char *, tmpnam, char *s) { | |
4142 | void *ctx; | |
4143 | COMMON_INTERCEPTOR_ENTER(ctx, tmpnam, s); | |
4144 | char *res = REAL(tmpnam)(s); | |
4145 | if (res) { | |
4146 | if (s) | |
92a42be0 SL |
4147 | // FIXME: under ASan the call below may write to freed memory and corrupt |
4148 | // its metadata. See | |
3157f602 | 4149 | // https://github.com/google/sanitizers/issues/321. |
1a4d82fc JJ |
4150 | COMMON_INTERCEPTOR_WRITE_RANGE(ctx, s, REAL(strlen)(s) + 1); |
4151 | else | |
4152 | COMMON_INTERCEPTOR_INITIALIZE_RANGE(res, REAL(strlen)(res) + 1); | |
4153 | } | |
4154 | return res; | |
4155 | } | |
4156 | #define INIT_TMPNAM COMMON_INTERCEPT_FUNCTION(tmpnam); | |
4157 | #else | |
4158 | #define INIT_TMPNAM | |
4159 | #endif | |
4160 | ||
4161 | #if SANITIZER_INTERCEPT_TMPNAM_R | |
4162 | INTERCEPTOR(char *, tmpnam_r, char *s) { | |
4163 | void *ctx; | |
4164 | COMMON_INTERCEPTOR_ENTER(ctx, tmpnam_r, s); | |
92a42be0 SL |
4165 | // FIXME: under ASan the call below may write to freed memory and corrupt |
4166 | // its metadata. See | |
3157f602 | 4167 | // https://github.com/google/sanitizers/issues/321. |
1a4d82fc JJ |
4168 | char *res = REAL(tmpnam_r)(s); |
4169 | if (res && s) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, s, REAL(strlen)(s) + 1); | |
4170 | return res; | |
4171 | } | |
4172 | #define INIT_TMPNAM_R COMMON_INTERCEPT_FUNCTION(tmpnam_r); | |
4173 | #else | |
4174 | #define INIT_TMPNAM_R | |
4175 | #endif | |
4176 | ||
4177 | #if SANITIZER_INTERCEPT_TEMPNAM | |
4178 | INTERCEPTOR(char *, tempnam, char *dir, char *pfx) { | |
4179 | void *ctx; | |
4180 | COMMON_INTERCEPTOR_ENTER(ctx, tempnam, dir, pfx); | |
4181 | if (dir) COMMON_INTERCEPTOR_READ_RANGE(ctx, dir, REAL(strlen)(dir) + 1); | |
4182 | if (pfx) COMMON_INTERCEPTOR_READ_RANGE(ctx, pfx, REAL(strlen)(pfx) + 1); | |
4183 | char *res = REAL(tempnam)(dir, pfx); | |
4184 | if (res) COMMON_INTERCEPTOR_INITIALIZE_RANGE(res, REAL(strlen)(res) + 1); | |
4185 | return res; | |
4186 | } | |
4187 | #define INIT_TEMPNAM COMMON_INTERCEPT_FUNCTION(tempnam); | |
4188 | #else | |
4189 | #define INIT_TEMPNAM | |
4190 | #endif | |
4191 | ||
4192 | #if SANITIZER_INTERCEPT_PTHREAD_SETNAME_NP | |
4193 | INTERCEPTOR(int, pthread_setname_np, uptr thread, const char *name) { | |
4194 | void *ctx; | |
4195 | COMMON_INTERCEPTOR_ENTER(ctx, pthread_setname_np, thread, name); | |
92a42be0 | 4196 | COMMON_INTERCEPTOR_READ_STRING(ctx, name, 0); |
1a4d82fc JJ |
4197 | COMMON_INTERCEPTOR_SET_PTHREAD_NAME(ctx, thread, name); |
4198 | return REAL(pthread_setname_np)(thread, name); | |
4199 | } | |
4200 | #define INIT_PTHREAD_SETNAME_NP COMMON_INTERCEPT_FUNCTION(pthread_setname_np); | |
4201 | #else | |
4202 | #define INIT_PTHREAD_SETNAME_NP | |
4203 | #endif | |
4204 | ||
4205 | #if SANITIZER_INTERCEPT_SINCOS | |
4206 | INTERCEPTOR(void, sincos, double x, double *sin, double *cos) { | |
4207 | void *ctx; | |
4208 | COMMON_INTERCEPTOR_ENTER(ctx, sincos, x, sin, cos); | |
92a42be0 SL |
4209 | // FIXME: under ASan the call below may write to freed memory and corrupt |
4210 | // its metadata. See | |
3157f602 | 4211 | // https://github.com/google/sanitizers/issues/321. |
1a4d82fc JJ |
4212 | REAL(sincos)(x, sin, cos); |
4213 | if (sin) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, sin, sizeof(*sin)); | |
4214 | if (cos) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, cos, sizeof(*cos)); | |
4215 | } | |
4216 | INTERCEPTOR(void, sincosf, float x, float *sin, float *cos) { | |
4217 | void *ctx; | |
4218 | COMMON_INTERCEPTOR_ENTER(ctx, sincosf, x, sin, cos); | |
92a42be0 SL |
4219 | // FIXME: under ASan the call below may write to freed memory and corrupt |
4220 | // its metadata. See | |
3157f602 | 4221 | // https://github.com/google/sanitizers/issues/321. |
1a4d82fc JJ |
4222 | REAL(sincosf)(x, sin, cos); |
4223 | if (sin) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, sin, sizeof(*sin)); | |
4224 | if (cos) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, cos, sizeof(*cos)); | |
4225 | } | |
4226 | INTERCEPTOR(void, sincosl, long double x, long double *sin, long double *cos) { | |
4227 | void *ctx; | |
4228 | COMMON_INTERCEPTOR_ENTER(ctx, sincosl, x, sin, cos); | |
92a42be0 SL |
4229 | // FIXME: under ASan the call below may write to freed memory and corrupt |
4230 | // its metadata. See | |
3157f602 | 4231 | // https://github.com/google/sanitizers/issues/321. |
1a4d82fc JJ |
4232 | REAL(sincosl)(x, sin, cos); |
4233 | if (sin) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, sin, sizeof(*sin)); | |
4234 | if (cos) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, cos, sizeof(*cos)); | |
4235 | } | |
4236 | #define INIT_SINCOS \ | |
4237 | COMMON_INTERCEPT_FUNCTION(sincos); \ | |
4238 | COMMON_INTERCEPT_FUNCTION(sincosf); \ | |
5bcae85e | 4239 | COMMON_INTERCEPT_FUNCTION_LDBL(sincosl); |
1a4d82fc JJ |
4240 | #else |
4241 | #define INIT_SINCOS | |
4242 | #endif | |
4243 | ||
4244 | #if SANITIZER_INTERCEPT_REMQUO | |
4245 | INTERCEPTOR(double, remquo, double x, double y, int *quo) { | |
4246 | void *ctx; | |
4247 | COMMON_INTERCEPTOR_ENTER(ctx, remquo, x, y, quo); | |
92a42be0 SL |
4248 | // FIXME: under ASan the call below may write to freed memory and corrupt |
4249 | // its metadata. See | |
3157f602 | 4250 | // https://github.com/google/sanitizers/issues/321. |
1a4d82fc JJ |
4251 | double res = REAL(remquo)(x, y, quo); |
4252 | if (quo) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, quo, sizeof(*quo)); | |
4253 | return res; | |
4254 | } | |
4255 | INTERCEPTOR(float, remquof, float x, float y, int *quo) { | |
4256 | void *ctx; | |
4257 | COMMON_INTERCEPTOR_ENTER(ctx, remquof, x, y, quo); | |
92a42be0 SL |
4258 | // FIXME: under ASan the call below may write to freed memory and corrupt |
4259 | // its metadata. See | |
3157f602 | 4260 | // https://github.com/google/sanitizers/issues/321. |
1a4d82fc JJ |
4261 | float res = REAL(remquof)(x, y, quo); |
4262 | if (quo) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, quo, sizeof(*quo)); | |
4263 | return res; | |
4264 | } | |
4265 | INTERCEPTOR(long double, remquol, long double x, long double y, int *quo) { | |
4266 | void *ctx; | |
4267 | COMMON_INTERCEPTOR_ENTER(ctx, remquol, x, y, quo); | |
92a42be0 SL |
4268 | // FIXME: under ASan the call below may write to freed memory and corrupt |
4269 | // its metadata. See | |
3157f602 | 4270 | // https://github.com/google/sanitizers/issues/321. |
1a4d82fc JJ |
4271 | long double res = REAL(remquol)(x, y, quo); |
4272 | if (quo) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, quo, sizeof(*quo)); | |
4273 | return res; | |
4274 | } | |
4275 | #define INIT_REMQUO \ | |
4276 | COMMON_INTERCEPT_FUNCTION(remquo); \ | |
4277 | COMMON_INTERCEPT_FUNCTION(remquof); \ | |
5bcae85e | 4278 | COMMON_INTERCEPT_FUNCTION_LDBL(remquol); |
1a4d82fc JJ |
4279 | #else |
4280 | #define INIT_REMQUO | |
4281 | #endif | |
4282 | ||
4283 | #if SANITIZER_INTERCEPT_LGAMMA | |
4284 | extern int signgam; | |
4285 | INTERCEPTOR(double, lgamma, double x) { | |
4286 | void *ctx; | |
4287 | COMMON_INTERCEPTOR_ENTER(ctx, lgamma, x); | |
4288 | double res = REAL(lgamma)(x); | |
4289 | COMMON_INTERCEPTOR_WRITE_RANGE(ctx, &signgam, sizeof(signgam)); | |
4290 | return res; | |
4291 | } | |
4292 | INTERCEPTOR(float, lgammaf, float x) { | |
4293 | void *ctx; | |
4294 | COMMON_INTERCEPTOR_ENTER(ctx, lgammaf, x); | |
4295 | float res = REAL(lgammaf)(x); | |
4296 | COMMON_INTERCEPTOR_WRITE_RANGE(ctx, &signgam, sizeof(signgam)); | |
4297 | return res; | |
4298 | } | |
4299 | INTERCEPTOR(long double, lgammal, long double x) { | |
4300 | void *ctx; | |
4301 | COMMON_INTERCEPTOR_ENTER(ctx, lgammal, x); | |
4302 | long double res = REAL(lgammal)(x); | |
4303 | COMMON_INTERCEPTOR_WRITE_RANGE(ctx, &signgam, sizeof(signgam)); | |
4304 | return res; | |
4305 | } | |
4306 | #define INIT_LGAMMA \ | |
4307 | COMMON_INTERCEPT_FUNCTION(lgamma); \ | |
4308 | COMMON_INTERCEPT_FUNCTION(lgammaf); \ | |
5bcae85e | 4309 | COMMON_INTERCEPT_FUNCTION_LDBL(lgammal); |
1a4d82fc JJ |
4310 | #else |
4311 | #define INIT_LGAMMA | |
4312 | #endif | |
4313 | ||
4314 | #if SANITIZER_INTERCEPT_LGAMMA_R | |
4315 | INTERCEPTOR(double, lgamma_r, double x, int *signp) { | |
4316 | void *ctx; | |
4317 | COMMON_INTERCEPTOR_ENTER(ctx, lgamma_r, x, signp); | |
92a42be0 SL |
4318 | // FIXME: under ASan the call below may write to freed memory and corrupt |
4319 | // its metadata. See | |
3157f602 | 4320 | // https://github.com/google/sanitizers/issues/321. |
1a4d82fc JJ |
4321 | double res = REAL(lgamma_r)(x, signp); |
4322 | if (signp) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, signp, sizeof(*signp)); | |
4323 | return res; | |
4324 | } | |
4325 | INTERCEPTOR(float, lgammaf_r, float x, int *signp) { | |
4326 | void *ctx; | |
4327 | COMMON_INTERCEPTOR_ENTER(ctx, lgammaf_r, x, signp); | |
92a42be0 SL |
4328 | // FIXME: under ASan the call below may write to freed memory and corrupt |
4329 | // its metadata. See | |
3157f602 | 4330 | // https://github.com/google/sanitizers/issues/321. |
1a4d82fc JJ |
4331 | float res = REAL(lgammaf_r)(x, signp); |
4332 | if (signp) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, signp, sizeof(*signp)); | |
4333 | return res; | |
4334 | } | |
92a42be0 SL |
4335 | #define INIT_LGAMMA_R \ |
4336 | COMMON_INTERCEPT_FUNCTION(lgamma_r); \ | |
4337 | COMMON_INTERCEPT_FUNCTION(lgammaf_r); | |
4338 | #else | |
4339 | #define INIT_LGAMMA_R | |
4340 | #endif | |
4341 | ||
4342 | #if SANITIZER_INTERCEPT_LGAMMAL_R | |
1a4d82fc JJ |
4343 | INTERCEPTOR(long double, lgammal_r, long double x, int *signp) { |
4344 | void *ctx; | |
4345 | COMMON_INTERCEPTOR_ENTER(ctx, lgammal_r, x, signp); | |
92a42be0 SL |
4346 | // FIXME: under ASan the call below may write to freed memory and corrupt |
4347 | // its metadata. See | |
3157f602 | 4348 | // https://github.com/google/sanitizers/issues/321. |
1a4d82fc JJ |
4349 | long double res = REAL(lgammal_r)(x, signp); |
4350 | if (signp) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, signp, sizeof(*signp)); | |
4351 | return res; | |
4352 | } | |
5bcae85e | 4353 | #define INIT_LGAMMAL_R COMMON_INTERCEPT_FUNCTION_LDBL(lgammal_r); |
1a4d82fc | 4354 | #else |
92a42be0 | 4355 | #define INIT_LGAMMAL_R |
1a4d82fc JJ |
4356 | #endif |
4357 | ||
4358 | #if SANITIZER_INTERCEPT_DRAND48_R | |
4359 | INTERCEPTOR(int, drand48_r, void *buffer, double *result) { | |
4360 | void *ctx; | |
4361 | COMMON_INTERCEPTOR_ENTER(ctx, drand48_r, buffer, result); | |
92a42be0 SL |
4362 | // FIXME: under ASan the call below may write to freed memory and corrupt |
4363 | // its metadata. See | |
3157f602 | 4364 | // https://github.com/google/sanitizers/issues/321. |
1a4d82fc JJ |
4365 | int res = REAL(drand48_r)(buffer, result); |
4366 | if (result) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, result, sizeof(*result)); | |
4367 | return res; | |
4368 | } | |
4369 | INTERCEPTOR(int, lrand48_r, void *buffer, long *result) { | |
4370 | void *ctx; | |
4371 | COMMON_INTERCEPTOR_ENTER(ctx, lrand48_r, buffer, result); | |
92a42be0 SL |
4372 | // FIXME: under ASan the call below may write to freed memory and corrupt |
4373 | // its metadata. See | |
3157f602 | 4374 | // https://github.com/google/sanitizers/issues/321. |
1a4d82fc JJ |
4375 | int res = REAL(lrand48_r)(buffer, result); |
4376 | if (result) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, result, sizeof(*result)); | |
4377 | return res; | |
4378 | } | |
4379 | #define INIT_DRAND48_R \ | |
4380 | COMMON_INTERCEPT_FUNCTION(drand48_r); \ | |
4381 | COMMON_INTERCEPT_FUNCTION(lrand48_r); | |
4382 | #else | |
4383 | #define INIT_DRAND48_R | |
4384 | #endif | |
4385 | ||
4386 | #if SANITIZER_INTERCEPT_RAND_R | |
4387 | INTERCEPTOR(int, rand_r, unsigned *seedp) { | |
4388 | void *ctx; | |
4389 | COMMON_INTERCEPTOR_ENTER(ctx, rand_r, seedp); | |
4390 | COMMON_INTERCEPTOR_READ_RANGE(ctx, seedp, sizeof(*seedp)); | |
4391 | return REAL(rand_r)(seedp); | |
4392 | } | |
4393 | #define INIT_RAND_R COMMON_INTERCEPT_FUNCTION(rand_r); | |
4394 | #else | |
4395 | #define INIT_RAND_R | |
4396 | #endif | |
4397 | ||
4398 | #if SANITIZER_INTERCEPT_GETLINE | |
4399 | INTERCEPTOR(SSIZE_T, getline, char **lineptr, SIZE_T *n, void *stream) { | |
4400 | void *ctx; | |
4401 | COMMON_INTERCEPTOR_ENTER(ctx, getline, lineptr, n, stream); | |
92a42be0 SL |
4402 | // FIXME: under ASan the call below may write to freed memory and corrupt |
4403 | // its metadata. See | |
3157f602 | 4404 | // https://github.com/google/sanitizers/issues/321. |
1a4d82fc JJ |
4405 | SSIZE_T res = REAL(getline)(lineptr, n, stream); |
4406 | if (res > 0) { | |
4407 | COMMON_INTERCEPTOR_WRITE_RANGE(ctx, lineptr, sizeof(*lineptr)); | |
4408 | COMMON_INTERCEPTOR_WRITE_RANGE(ctx, n, sizeof(*n)); | |
4409 | COMMON_INTERCEPTOR_WRITE_RANGE(ctx, *lineptr, res + 1); | |
4410 | } | |
4411 | return res; | |
4412 | } | |
92a42be0 SL |
4413 | |
4414 | // FIXME: under ASan the call below may write to freed memory and corrupt its | |
4415 | // metadata. See | |
3157f602 | 4416 | // https://github.com/google/sanitizers/issues/321. |
92a42be0 SL |
4417 | #define GETDELIM_INTERCEPTOR_IMPL(vname) \ |
4418 | { \ | |
4419 | void *ctx; \ | |
4420 | COMMON_INTERCEPTOR_ENTER(ctx, vname, lineptr, n, delim, stream); \ | |
4421 | SSIZE_T res = REAL(vname)(lineptr, n, delim, stream); \ | |
4422 | if (res > 0) { \ | |
4423 | COMMON_INTERCEPTOR_WRITE_RANGE(ctx, lineptr, sizeof(*lineptr)); \ | |
4424 | COMMON_INTERCEPTOR_WRITE_RANGE(ctx, n, sizeof(*n)); \ | |
4425 | COMMON_INTERCEPTOR_WRITE_RANGE(ctx, *lineptr, res + 1); \ | |
4426 | } \ | |
4427 | return res; \ | |
1a4d82fc | 4428 | } |
92a42be0 SL |
4429 | |
4430 | INTERCEPTOR(SSIZE_T, __getdelim, char **lineptr, SIZE_T *n, int delim, | |
4431 | void *stream) | |
4432 | GETDELIM_INTERCEPTOR_IMPL(__getdelim) | |
4433 | ||
4434 | // There's no __getdelim() on FreeBSD so we supply the getdelim() interceptor | |
4435 | // with its own body. | |
4436 | INTERCEPTOR(SSIZE_T, getdelim, char **lineptr, SIZE_T *n, int delim, | |
4437 | void *stream) | |
4438 | GETDELIM_INTERCEPTOR_IMPL(getdelim) | |
4439 | ||
4440 | #define INIT_GETLINE \ | |
4441 | COMMON_INTERCEPT_FUNCTION(getline); \ | |
4442 | COMMON_INTERCEPT_FUNCTION(__getdelim); \ | |
1a4d82fc JJ |
4443 | COMMON_INTERCEPT_FUNCTION(getdelim); |
4444 | #else | |
4445 | #define INIT_GETLINE | |
4446 | #endif | |
4447 | ||
4448 | #if SANITIZER_INTERCEPT_ICONV | |
4449 | INTERCEPTOR(SIZE_T, iconv, void *cd, char **inbuf, SIZE_T *inbytesleft, | |
4450 | char **outbuf, SIZE_T *outbytesleft) { | |
4451 | void *ctx; | |
4452 | COMMON_INTERCEPTOR_ENTER(ctx, iconv, cd, inbuf, inbytesleft, outbuf, | |
4453 | outbytesleft); | |
4454 | if (inbytesleft) | |
4455 | COMMON_INTERCEPTOR_READ_RANGE(ctx, inbytesleft, sizeof(*inbytesleft)); | |
4456 | if (inbuf && inbytesleft) | |
4457 | COMMON_INTERCEPTOR_READ_RANGE(ctx, *inbuf, *inbytesleft); | |
4458 | if (outbytesleft) | |
4459 | COMMON_INTERCEPTOR_READ_RANGE(ctx, outbytesleft, sizeof(*outbytesleft)); | |
92a42be0 SL |
4460 | void *outbuf_orig = outbuf ? *outbuf : nullptr; |
4461 | // FIXME: under ASan the call below may write to freed memory and corrupt | |
4462 | // its metadata. See | |
3157f602 | 4463 | // https://github.com/google/sanitizers/issues/321. |
1a4d82fc JJ |
4464 | SIZE_T res = REAL(iconv)(cd, inbuf, inbytesleft, outbuf, outbytesleft); |
4465 | if (res != (SIZE_T) - 1 && outbuf && *outbuf > outbuf_orig) { | |
4466 | SIZE_T sz = (char *)*outbuf - (char *)outbuf_orig; | |
4467 | COMMON_INTERCEPTOR_WRITE_RANGE(ctx, outbuf_orig, sz); | |
4468 | } | |
4469 | return res; | |
4470 | } | |
4471 | #define INIT_ICONV COMMON_INTERCEPT_FUNCTION(iconv); | |
4472 | #else | |
4473 | #define INIT_ICONV | |
4474 | #endif | |
4475 | ||
4476 | #if SANITIZER_INTERCEPT_TIMES | |
4477 | INTERCEPTOR(__sanitizer_clock_t, times, void *tms) { | |
4478 | void *ctx; | |
4479 | COMMON_INTERCEPTOR_ENTER(ctx, times, tms); | |
92a42be0 SL |
4480 | // FIXME: under ASan the call below may write to freed memory and corrupt |
4481 | // its metadata. See | |
3157f602 | 4482 | // https://github.com/google/sanitizers/issues/321. |
1a4d82fc JJ |
4483 | __sanitizer_clock_t res = REAL(times)(tms); |
4484 | if (res != (__sanitizer_clock_t)-1 && tms) | |
4485 | COMMON_INTERCEPTOR_WRITE_RANGE(ctx, tms, struct_tms_sz); | |
4486 | return res; | |
4487 | } | |
4488 | #define INIT_TIMES COMMON_INTERCEPT_FUNCTION(times); | |
4489 | #else | |
4490 | #define INIT_TIMES | |
4491 | #endif | |
4492 | ||
4493 | #if SANITIZER_INTERCEPT_TLS_GET_ADDR | |
5bcae85e | 4494 | #if !SANITIZER_S390 |
1a4d82fc | 4495 | #define INIT_TLS_GET_ADDR COMMON_INTERCEPT_FUNCTION(__tls_get_addr) |
92a42be0 SL |
4496 | // If you see any crashes around this functions, there are 2 known issues with |
4497 | // it: 1. __tls_get_addr can be called with mis-aligned stack due to: | |
4498 | // https://gcc.gnu.org/bugzilla/show_bug.cgi?id=58066 | |
4499 | // 2. It can be called recursively if sanitizer code uses __tls_get_addr | |
4500 | // to access thread local variables (it should not happen normally, | |
4501 | // because sanitizers use initial-exec tls model). | |
1a4d82fc JJ |
4502 | INTERCEPTOR(void *, __tls_get_addr, void *arg) { |
4503 | void *ctx; | |
4504 | COMMON_INTERCEPTOR_ENTER(ctx, __tls_get_addr, arg); | |
4505 | void *res = REAL(__tls_get_addr)(arg); | |
92a42be0 SL |
4506 | uptr tls_begin, tls_end; |
4507 | COMMON_INTERCEPTOR_GET_TLS_RANGE(&tls_begin, &tls_end); | |
4508 | DTLS::DTV *dtv = DTLS_on_tls_get_addr(arg, res, tls_begin, tls_end); | |
4509 | if (dtv) { | |
4510 | // New DTLS block has been allocated. | |
4511 | COMMON_INTERCEPTOR_INITIALIZE_RANGE((void *)dtv->beg, dtv->size); | |
4512 | } | |
1a4d82fc JJ |
4513 | return res; |
4514 | } | |
5bcae85e SL |
4515 | #if SANITIZER_PPC |
4516 | // On PowerPC, we also need to intercept __tls_get_addr_opt, which has | |
4517 | // mostly the same semantics as __tls_get_addr, but its presence enables | |
4518 | // some optimizations in linker (which are safe to ignore here). | |
4519 | extern "C" __attribute__((alias("__interceptor___tls_get_addr"), | |
4520 | visibility("default"))) | |
4521 | void *__tls_get_addr_opt(void *arg); | |
4522 | #endif | |
4523 | #else // SANITIZER_S390 | |
4524 | // On s390, we have to intercept two functions here: | |
4525 | // - __tls_get_addr_internal, which is a glibc-internal function that is like | |
4526 | // the usual __tls_get_addr, but returns a TP-relative offset instead of | |
4527 | // a proper pointer. It is used by dlsym for TLS symbols. | |
4528 | // - __tls_get_offset, which is like the above, but also takes a GOT-relative | |
4529 | // descriptor offset as an argument instead of a pointer. GOT address | |
4530 | // is passed in r12, so it's necessary to write it in assembly. This is | |
4531 | // the function used by the compiler. | |
4532 | #define INIT_TLS_GET_ADDR COMMON_INTERCEPT_FUNCTION(__tls_get_addr_internal) | |
4533 | INTERCEPTOR(uptr, __tls_get_addr_internal, void *arg) { | |
4534 | void *ctx; | |
4535 | COMMON_INTERCEPTOR_ENTER(ctx, __tls_get_addr_internal, arg); | |
4536 | uptr res = REAL(__tls_get_addr_internal)(arg); | |
4537 | uptr tp = reinterpret_cast<uptr>(__builtin_thread_pointer()); | |
4538 | void *ptr = reinterpret_cast<void *>(res + tp); | |
4539 | uptr tls_begin, tls_end; | |
4540 | COMMON_INTERCEPTOR_GET_TLS_RANGE(&tls_begin, &tls_end); | |
4541 | DTLS::DTV *dtv = DTLS_on_tls_get_addr(arg, ptr, tls_begin, tls_end); | |
4542 | if (dtv) { | |
4543 | // New DTLS block has been allocated. | |
4544 | COMMON_INTERCEPTOR_INITIALIZE_RANGE((void *)dtv->beg, dtv->size); | |
4545 | } | |
4546 | return res; | |
4547 | } | |
4548 | // We need a protected symbol aliasing the above, so that we can jump | |
4549 | // directly to it from the assembly below. | |
4550 | extern "C" __attribute__((alias("__interceptor___tls_get_addr_internal"), | |
4551 | visibility("protected"))) | |
4552 | uptr __interceptor___tls_get_addr_internal_protected(void *arg); | |
4553 | // Now carefully intercept __tls_get_offset. | |
4554 | asm( | |
4555 | ".text\n" | |
4556 | ".global __tls_get_offset\n" | |
4557 | "__tls_get_offset:\n" | |
4558 | // The __intercept_ version has to exist, so that gen_dynamic_list.py | |
4559 | // exports our symbol. | |
4560 | ".global __interceptor___tls_get_offset\n" | |
4561 | "__interceptor___tls_get_offset:\n" | |
4562 | #ifdef __s390x__ | |
4563 | "la %r2, 0(%r2,%r12)\n" | |
4564 | "jg __interceptor___tls_get_addr_internal_protected\n" | |
4565 | #else | |
4566 | "basr %r3,0\n" | |
4567 | "0: la %r2,0(%r2,%r12)\n" | |
4568 | "l %r4,1f-0b(%r3)\n" | |
4569 | "b 0(%r4,%r3)\n" | |
4570 | "1: .long __interceptor___tls_get_addr_internal_protected - 0b\n" | |
4571 | #endif | |
4572 | ".type __tls_get_offset, @function\n" | |
4573 | ".size __tls_get_offset, .-__tls_get_offset\n" | |
4574 | ); | |
4575 | #endif // SANITIZER_S390 | |
1a4d82fc JJ |
4576 | #else |
4577 | #define INIT_TLS_GET_ADDR | |
4578 | #endif | |
4579 | ||
4580 | #if SANITIZER_INTERCEPT_LISTXATTR | |
4581 | INTERCEPTOR(SSIZE_T, listxattr, const char *path, char *list, SIZE_T size) { | |
4582 | void *ctx; | |
4583 | COMMON_INTERCEPTOR_ENTER(ctx, listxattr, path, list, size); | |
4584 | if (path) COMMON_INTERCEPTOR_READ_RANGE(ctx, path, REAL(strlen)(path) + 1); | |
92a42be0 SL |
4585 | // FIXME: under ASan the call below may write to freed memory and corrupt |
4586 | // its metadata. See | |
3157f602 | 4587 | // https://github.com/google/sanitizers/issues/321. |
1a4d82fc JJ |
4588 | SSIZE_T res = REAL(listxattr)(path, list, size); |
4589 | // Here and below, size == 0 is a special case where nothing is written to the | |
4590 | // buffer, and res contains the desired buffer size. | |
4591 | if (size && res > 0 && list) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, list, res); | |
4592 | return res; | |
4593 | } | |
4594 | INTERCEPTOR(SSIZE_T, llistxattr, const char *path, char *list, SIZE_T size) { | |
4595 | void *ctx; | |
4596 | COMMON_INTERCEPTOR_ENTER(ctx, llistxattr, path, list, size); | |
4597 | if (path) COMMON_INTERCEPTOR_READ_RANGE(ctx, path, REAL(strlen)(path) + 1); | |
92a42be0 SL |
4598 | // FIXME: under ASan the call below may write to freed memory and corrupt |
4599 | // its metadata. See | |
3157f602 | 4600 | // https://github.com/google/sanitizers/issues/321. |
1a4d82fc JJ |
4601 | SSIZE_T res = REAL(llistxattr)(path, list, size); |
4602 | if (size && res > 0 && list) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, list, res); | |
4603 | return res; | |
4604 | } | |
4605 | INTERCEPTOR(SSIZE_T, flistxattr, int fd, char *list, SIZE_T size) { | |
4606 | void *ctx; | |
4607 | COMMON_INTERCEPTOR_ENTER(ctx, flistxattr, fd, list, size); | |
92a42be0 SL |
4608 | // FIXME: under ASan the call below may write to freed memory and corrupt |
4609 | // its metadata. See | |
3157f602 | 4610 | // https://github.com/google/sanitizers/issues/321. |
1a4d82fc JJ |
4611 | SSIZE_T res = REAL(flistxattr)(fd, list, size); |
4612 | if (size && res > 0 && list) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, list, res); | |
4613 | return res; | |
4614 | } | |
4615 | #define INIT_LISTXATTR \ | |
4616 | COMMON_INTERCEPT_FUNCTION(listxattr); \ | |
4617 | COMMON_INTERCEPT_FUNCTION(llistxattr); \ | |
4618 | COMMON_INTERCEPT_FUNCTION(flistxattr); | |
4619 | #else | |
4620 | #define INIT_LISTXATTR | |
4621 | #endif | |
4622 | ||
4623 | #if SANITIZER_INTERCEPT_GETXATTR | |
4624 | INTERCEPTOR(SSIZE_T, getxattr, const char *path, const char *name, char *value, | |
4625 | SIZE_T size) { | |
4626 | void *ctx; | |
4627 | COMMON_INTERCEPTOR_ENTER(ctx, getxattr, path, name, value, size); | |
4628 | if (path) COMMON_INTERCEPTOR_READ_RANGE(ctx, path, REAL(strlen)(path) + 1); | |
4629 | if (name) COMMON_INTERCEPTOR_READ_RANGE(ctx, name, REAL(strlen)(name) + 1); | |
92a42be0 SL |
4630 | // FIXME: under ASan the call below may write to freed memory and corrupt |
4631 | // its metadata. See | |
3157f602 | 4632 | // https://github.com/google/sanitizers/issues/321. |
1a4d82fc JJ |
4633 | SSIZE_T res = REAL(getxattr)(path, name, value, size); |
4634 | if (size && res > 0 && value) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, value, res); | |
4635 | return res; | |
4636 | } | |
4637 | INTERCEPTOR(SSIZE_T, lgetxattr, const char *path, const char *name, char *value, | |
4638 | SIZE_T size) { | |
4639 | void *ctx; | |
4640 | COMMON_INTERCEPTOR_ENTER(ctx, lgetxattr, path, name, value, size); | |
4641 | if (path) COMMON_INTERCEPTOR_READ_RANGE(ctx, path, REAL(strlen)(path) + 1); | |
4642 | if (name) COMMON_INTERCEPTOR_READ_RANGE(ctx, name, REAL(strlen)(name) + 1); | |
92a42be0 SL |
4643 | // FIXME: under ASan the call below may write to freed memory and corrupt |
4644 | // its metadata. See | |
3157f602 | 4645 | // https://github.com/google/sanitizers/issues/321. |
1a4d82fc JJ |
4646 | SSIZE_T res = REAL(lgetxattr)(path, name, value, size); |
4647 | if (size && res > 0 && value) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, value, res); | |
4648 | return res; | |
4649 | } | |
4650 | INTERCEPTOR(SSIZE_T, fgetxattr, int fd, const char *name, char *value, | |
4651 | SIZE_T size) { | |
4652 | void *ctx; | |
4653 | COMMON_INTERCEPTOR_ENTER(ctx, fgetxattr, fd, name, value, size); | |
4654 | if (name) COMMON_INTERCEPTOR_READ_RANGE(ctx, name, REAL(strlen)(name) + 1); | |
92a42be0 SL |
4655 | // FIXME: under ASan the call below may write to freed memory and corrupt |
4656 | // its metadata. See | |
3157f602 | 4657 | // https://github.com/google/sanitizers/issues/321. |
1a4d82fc JJ |
4658 | SSIZE_T res = REAL(fgetxattr)(fd, name, value, size); |
4659 | if (size && res > 0 && value) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, value, res); | |
4660 | return res; | |
4661 | } | |
4662 | #define INIT_GETXATTR \ | |
4663 | COMMON_INTERCEPT_FUNCTION(getxattr); \ | |
4664 | COMMON_INTERCEPT_FUNCTION(lgetxattr); \ | |
4665 | COMMON_INTERCEPT_FUNCTION(fgetxattr); | |
4666 | #else | |
4667 | #define INIT_GETXATTR | |
4668 | #endif | |
4669 | ||
4670 | #if SANITIZER_INTERCEPT_GETRESID | |
4671 | INTERCEPTOR(int, getresuid, void *ruid, void *euid, void *suid) { | |
4672 | void *ctx; | |
4673 | COMMON_INTERCEPTOR_ENTER(ctx, getresuid, ruid, euid, suid); | |
92a42be0 SL |
4674 | // FIXME: under ASan the call below may write to freed memory and corrupt |
4675 | // its metadata. See | |
3157f602 | 4676 | // https://github.com/google/sanitizers/issues/321. |
1a4d82fc JJ |
4677 | int res = REAL(getresuid)(ruid, euid, suid); |
4678 | if (res >= 0) { | |
4679 | if (ruid) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, ruid, uid_t_sz); | |
4680 | if (euid) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, euid, uid_t_sz); | |
4681 | if (suid) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, suid, uid_t_sz); | |
4682 | } | |
4683 | return res; | |
4684 | } | |
4685 | INTERCEPTOR(int, getresgid, void *rgid, void *egid, void *sgid) { | |
4686 | void *ctx; | |
4687 | COMMON_INTERCEPTOR_ENTER(ctx, getresgid, rgid, egid, sgid); | |
92a42be0 SL |
4688 | // FIXME: under ASan the call below may write to freed memory and corrupt |
4689 | // its metadata. See | |
3157f602 | 4690 | // https://github.com/google/sanitizers/issues/321. |
1a4d82fc JJ |
4691 | int res = REAL(getresgid)(rgid, egid, sgid); |
4692 | if (res >= 0) { | |
4693 | if (rgid) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, rgid, gid_t_sz); | |
4694 | if (egid) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, egid, gid_t_sz); | |
4695 | if (sgid) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, sgid, gid_t_sz); | |
4696 | } | |
4697 | return res; | |
4698 | } | |
4699 | #define INIT_GETRESID \ | |
4700 | COMMON_INTERCEPT_FUNCTION(getresuid); \ | |
4701 | COMMON_INTERCEPT_FUNCTION(getresgid); | |
4702 | #else | |
4703 | #define INIT_GETRESID | |
4704 | #endif | |
4705 | ||
4706 | #if SANITIZER_INTERCEPT_GETIFADDRS | |
4707 | // As long as getifaddrs()/freeifaddrs() use calloc()/free(), we don't need to | |
4708 | // intercept freeifaddrs(). If that ceases to be the case, we might need to | |
4709 | // intercept it to poison the memory again. | |
4710 | INTERCEPTOR(int, getifaddrs, __sanitizer_ifaddrs **ifap) { | |
4711 | void *ctx; | |
4712 | COMMON_INTERCEPTOR_ENTER(ctx, getifaddrs, ifap); | |
92a42be0 SL |
4713 | // FIXME: under ASan the call below may write to freed memory and corrupt |
4714 | // its metadata. See | |
3157f602 | 4715 | // https://github.com/google/sanitizers/issues/321. |
1a4d82fc JJ |
4716 | int res = REAL(getifaddrs)(ifap); |
4717 | if (res == 0 && ifap) { | |
4718 | COMMON_INTERCEPTOR_WRITE_RANGE(ctx, ifap, sizeof(void *)); | |
4719 | __sanitizer_ifaddrs *p = *ifap; | |
4720 | while (p) { | |
4721 | COMMON_INTERCEPTOR_WRITE_RANGE(ctx, p, sizeof(__sanitizer_ifaddrs)); | |
4722 | if (p->ifa_name) | |
4723 | COMMON_INTERCEPTOR_WRITE_RANGE(ctx, p->ifa_name, | |
4724 | REAL(strlen)(p->ifa_name) + 1); | |
4725 | if (p->ifa_addr) | |
4726 | COMMON_INTERCEPTOR_WRITE_RANGE(ctx, p->ifa_addr, struct_sockaddr_sz); | |
4727 | if (p->ifa_netmask) | |
4728 | COMMON_INTERCEPTOR_WRITE_RANGE(ctx, p->ifa_netmask, struct_sockaddr_sz); | |
4729 | // On Linux this is a union, but the other member also points to a | |
4730 | // struct sockaddr, so the following is sufficient. | |
4731 | if (p->ifa_dstaddr) | |
4732 | COMMON_INTERCEPTOR_WRITE_RANGE(ctx, p->ifa_dstaddr, struct_sockaddr_sz); | |
4733 | // FIXME(smatveev): Unpoison p->ifa_data as well. | |
4734 | p = p->ifa_next; | |
4735 | } | |
4736 | } | |
4737 | return res; | |
4738 | } | |
4739 | #define INIT_GETIFADDRS \ | |
4740 | COMMON_INTERCEPT_FUNCTION(getifaddrs); | |
4741 | #else | |
4742 | #define INIT_GETIFADDRS | |
4743 | #endif | |
4744 | ||
4745 | #if SANITIZER_INTERCEPT_IF_INDEXTONAME | |
4746 | INTERCEPTOR(char *, if_indextoname, unsigned int ifindex, char* ifname) { | |
4747 | void *ctx; | |
4748 | COMMON_INTERCEPTOR_ENTER(ctx, if_indextoname, ifindex, ifname); | |
92a42be0 SL |
4749 | // FIXME: under ASan the call below may write to freed memory and corrupt |
4750 | // its metadata. See | |
3157f602 | 4751 | // https://github.com/google/sanitizers/issues/321. |
1a4d82fc JJ |
4752 | char *res = REAL(if_indextoname)(ifindex, ifname); |
4753 | if (res && ifname) | |
4754 | COMMON_INTERCEPTOR_WRITE_RANGE(ctx, ifname, REAL(strlen)(ifname) + 1); | |
4755 | return res; | |
4756 | } | |
4757 | INTERCEPTOR(unsigned int, if_nametoindex, const char* ifname) { | |
4758 | void *ctx; | |
4759 | COMMON_INTERCEPTOR_ENTER(ctx, if_nametoindex, ifname); | |
4760 | if (ifname) | |
4761 | COMMON_INTERCEPTOR_READ_RANGE(ctx, ifname, REAL(strlen)(ifname) + 1); | |
4762 | return REAL(if_nametoindex)(ifname); | |
4763 | } | |
4764 | #define INIT_IF_INDEXTONAME \ | |
4765 | COMMON_INTERCEPT_FUNCTION(if_indextoname); \ | |
4766 | COMMON_INTERCEPT_FUNCTION(if_nametoindex); | |
4767 | #else | |
4768 | #define INIT_IF_INDEXTONAME | |
4769 | #endif | |
4770 | ||
4771 | #if SANITIZER_INTERCEPT_CAPGET | |
4772 | INTERCEPTOR(int, capget, void *hdrp, void *datap) { | |
4773 | void *ctx; | |
4774 | COMMON_INTERCEPTOR_ENTER(ctx, capget, hdrp, datap); | |
4775 | if (hdrp) | |
4776 | COMMON_INTERCEPTOR_READ_RANGE(ctx, hdrp, __user_cap_header_struct_sz); | |
92a42be0 SL |
4777 | // FIXME: under ASan the call below may write to freed memory and corrupt |
4778 | // its metadata. See | |
3157f602 | 4779 | // https://github.com/google/sanitizers/issues/321. |
1a4d82fc JJ |
4780 | int res = REAL(capget)(hdrp, datap); |
4781 | if (res == 0 && datap) | |
4782 | COMMON_INTERCEPTOR_WRITE_RANGE(ctx, datap, __user_cap_data_struct_sz); | |
4783 | // We can also return -1 and write to hdrp->version if the version passed in | |
4784 | // hdrp->version is unsupported. But that's not a trivial condition to check, | |
4785 | // and anyway COMMON_INTERCEPTOR_READ_RANGE protects us to some extent. | |
4786 | return res; | |
4787 | } | |
4788 | INTERCEPTOR(int, capset, void *hdrp, const void *datap) { | |
4789 | void *ctx; | |
4790 | COMMON_INTERCEPTOR_ENTER(ctx, capset, hdrp, datap); | |
4791 | if (hdrp) | |
4792 | COMMON_INTERCEPTOR_READ_RANGE(ctx, hdrp, __user_cap_header_struct_sz); | |
4793 | if (datap) | |
4794 | COMMON_INTERCEPTOR_READ_RANGE(ctx, datap, __user_cap_data_struct_sz); | |
4795 | return REAL(capset)(hdrp, datap); | |
4796 | } | |
4797 | #define INIT_CAPGET \ | |
4798 | COMMON_INTERCEPT_FUNCTION(capget); \ | |
4799 | COMMON_INTERCEPT_FUNCTION(capset); | |
4800 | #else | |
4801 | #define INIT_CAPGET | |
4802 | #endif | |
4803 | ||
4804 | #if SANITIZER_INTERCEPT_AEABI_MEM | |
92a42be0 SL |
4805 | DECLARE_REAL_AND_INTERCEPTOR(void *, memmove, void *, const void *, uptr) |
4806 | DECLARE_REAL_AND_INTERCEPTOR(void *, memcpy, void *, const void *, uptr) | |
4807 | DECLARE_REAL_AND_INTERCEPTOR(void *, memset, void *, int, uptr) | |
1a4d82fc JJ |
4808 | |
4809 | INTERCEPTOR(void *, __aeabi_memmove, void *to, const void *from, uptr size) { | |
4810 | return WRAP(memmove)(to, from, size); | |
4811 | } | |
4812 | INTERCEPTOR(void *, __aeabi_memmove4, void *to, const void *from, uptr size) { | |
4813 | return WRAP(memmove)(to, from, size); | |
4814 | } | |
4815 | INTERCEPTOR(void *, __aeabi_memmove8, void *to, const void *from, uptr size) { | |
4816 | return WRAP(memmove)(to, from, size); | |
4817 | } | |
4818 | INTERCEPTOR(void *, __aeabi_memcpy, void *to, const void *from, uptr size) { | |
4819 | return WRAP(memcpy)(to, from, size); | |
4820 | } | |
4821 | INTERCEPTOR(void *, __aeabi_memcpy4, void *to, const void *from, uptr size) { | |
4822 | return WRAP(memcpy)(to, from, size); | |
4823 | } | |
4824 | INTERCEPTOR(void *, __aeabi_memcpy8, void *to, const void *from, uptr size) { | |
4825 | return WRAP(memcpy)(to, from, size); | |
4826 | } | |
4827 | // Note the argument order. | |
4828 | INTERCEPTOR(void *, __aeabi_memset, void *block, uptr size, int c) { | |
4829 | return WRAP(memset)(block, c, size); | |
4830 | } | |
4831 | INTERCEPTOR(void *, __aeabi_memset4, void *block, uptr size, int c) { | |
4832 | return WRAP(memset)(block, c, size); | |
4833 | } | |
4834 | INTERCEPTOR(void *, __aeabi_memset8, void *block, uptr size, int c) { | |
4835 | return WRAP(memset)(block, c, size); | |
4836 | } | |
4837 | INTERCEPTOR(void *, __aeabi_memclr, void *block, uptr size) { | |
4838 | return WRAP(memset)(block, 0, size); | |
4839 | } | |
4840 | INTERCEPTOR(void *, __aeabi_memclr4, void *block, uptr size) { | |
4841 | return WRAP(memset)(block, 0, size); | |
4842 | } | |
4843 | INTERCEPTOR(void *, __aeabi_memclr8, void *block, uptr size) { | |
4844 | return WRAP(memset)(block, 0, size); | |
4845 | } | |
4846 | #define INIT_AEABI_MEM \ | |
4847 | COMMON_INTERCEPT_FUNCTION(__aeabi_memmove); \ | |
4848 | COMMON_INTERCEPT_FUNCTION(__aeabi_memmove4); \ | |
4849 | COMMON_INTERCEPT_FUNCTION(__aeabi_memmove8); \ | |
4850 | COMMON_INTERCEPT_FUNCTION(__aeabi_memcpy); \ | |
4851 | COMMON_INTERCEPT_FUNCTION(__aeabi_memcpy4); \ | |
4852 | COMMON_INTERCEPT_FUNCTION(__aeabi_memcpy8); \ | |
4853 | COMMON_INTERCEPT_FUNCTION(__aeabi_memset); \ | |
4854 | COMMON_INTERCEPT_FUNCTION(__aeabi_memset4); \ | |
4855 | COMMON_INTERCEPT_FUNCTION(__aeabi_memset8); \ | |
4856 | COMMON_INTERCEPT_FUNCTION(__aeabi_memclr); \ | |
4857 | COMMON_INTERCEPT_FUNCTION(__aeabi_memclr4); \ | |
4858 | COMMON_INTERCEPT_FUNCTION(__aeabi_memclr8); | |
4859 | #else | |
4860 | #define INIT_AEABI_MEM | |
4861 | #endif // SANITIZER_INTERCEPT_AEABI_MEM | |
4862 | ||
4863 | #if SANITIZER_INTERCEPT___BZERO | |
4864 | DECLARE_REAL_AND_INTERCEPTOR(void *, memset, void *, int, uptr); | |
4865 | ||
4866 | INTERCEPTOR(void *, __bzero, void *block, uptr size) { | |
4867 | return WRAP(memset)(block, 0, size); | |
4868 | } | |
4869 | #define INIT___BZERO COMMON_INTERCEPT_FUNCTION(__bzero); | |
4870 | #else | |
4871 | #define INIT___BZERO | |
4872 | #endif // SANITIZER_INTERCEPT___BZERO | |
4873 | ||
4874 | #if SANITIZER_INTERCEPT_FTIME | |
4875 | INTERCEPTOR(int, ftime, __sanitizer_timeb *tp) { | |
4876 | void *ctx; | |
4877 | COMMON_INTERCEPTOR_ENTER(ctx, ftime, tp); | |
92a42be0 SL |
4878 | // FIXME: under ASan the call below may write to freed memory and corrupt |
4879 | // its metadata. See | |
3157f602 | 4880 | // https://github.com/google/sanitizers/issues/321. |
1a4d82fc JJ |
4881 | int res = REAL(ftime)(tp); |
4882 | if (tp) | |
4883 | COMMON_INTERCEPTOR_WRITE_RANGE(ctx, tp, sizeof(*tp)); | |
4884 | return res; | |
4885 | } | |
4886 | #define INIT_FTIME COMMON_INTERCEPT_FUNCTION(ftime); | |
4887 | #else | |
4888 | #define INIT_FTIME | |
4889 | #endif // SANITIZER_INTERCEPT_FTIME | |
4890 | ||
4891 | #if SANITIZER_INTERCEPT_XDR | |
4892 | INTERCEPTOR(void, xdrmem_create, __sanitizer_XDR *xdrs, uptr addr, | |
4893 | unsigned size, int op) { | |
4894 | void *ctx; | |
4895 | COMMON_INTERCEPTOR_ENTER(ctx, xdrmem_create, xdrs, addr, size, op); | |
92a42be0 SL |
4896 | // FIXME: under ASan the call below may write to freed memory and corrupt |
4897 | // its metadata. See | |
3157f602 | 4898 | // https://github.com/google/sanitizers/issues/321. |
1a4d82fc JJ |
4899 | REAL(xdrmem_create)(xdrs, addr, size, op); |
4900 | COMMON_INTERCEPTOR_WRITE_RANGE(ctx, xdrs, sizeof(*xdrs)); | |
1a4d82fc JJ |
4901 | if (op == __sanitizer_XDR_ENCODE) { |
4902 | // It's not obvious how much data individual xdr_ routines write. | |
4903 | // Simply unpoison the entire target buffer in advance. | |
4904 | COMMON_INTERCEPTOR_WRITE_RANGE(ctx, (void *)addr, size); | |
4905 | } | |
4906 | } | |
4907 | ||
4908 | INTERCEPTOR(void, xdrstdio_create, __sanitizer_XDR *xdrs, void *file, int op) { | |
4909 | void *ctx; | |
4910 | COMMON_INTERCEPTOR_ENTER(ctx, xdrstdio_create, xdrs, file, op); | |
92a42be0 SL |
4911 | // FIXME: under ASan the call below may write to freed memory and corrupt |
4912 | // its metadata. See | |
3157f602 | 4913 | // https://github.com/google/sanitizers/issues/321. |
1a4d82fc JJ |
4914 | REAL(xdrstdio_create)(xdrs, file, op); |
4915 | COMMON_INTERCEPTOR_WRITE_RANGE(ctx, xdrs, sizeof(*xdrs)); | |
1a4d82fc JJ |
4916 | } |
4917 | ||
92a42be0 SL |
4918 | // FIXME: under ASan the call below may write to freed memory and corrupt |
4919 | // its metadata. See | |
3157f602 | 4920 | // https://github.com/google/sanitizers/issues/321. |
1a4d82fc JJ |
4921 | #define XDR_INTERCEPTOR(F, T) \ |
4922 | INTERCEPTOR(int, F, __sanitizer_XDR *xdrs, T *p) { \ | |
4923 | void *ctx; \ | |
4924 | COMMON_INTERCEPTOR_ENTER(ctx, F, xdrs, p); \ | |
4925 | if (p && xdrs->x_op == __sanitizer_XDR_ENCODE) \ | |
4926 | COMMON_INTERCEPTOR_READ_RANGE(ctx, p, sizeof(*p)); \ | |
4927 | int res = REAL(F)(xdrs, p); \ | |
4928 | if (res && p && xdrs->x_op == __sanitizer_XDR_DECODE) \ | |
4929 | COMMON_INTERCEPTOR_WRITE_RANGE(ctx, p, sizeof(*p)); \ | |
4930 | return res; \ | |
4931 | } | |
4932 | ||
4933 | XDR_INTERCEPTOR(xdr_short, short) | |
4934 | XDR_INTERCEPTOR(xdr_u_short, unsigned short) | |
4935 | XDR_INTERCEPTOR(xdr_int, int) | |
4936 | XDR_INTERCEPTOR(xdr_u_int, unsigned) | |
4937 | XDR_INTERCEPTOR(xdr_long, long) | |
4938 | XDR_INTERCEPTOR(xdr_u_long, unsigned long) | |
4939 | XDR_INTERCEPTOR(xdr_hyper, long long) | |
4940 | XDR_INTERCEPTOR(xdr_u_hyper, unsigned long long) | |
4941 | XDR_INTERCEPTOR(xdr_longlong_t, long long) | |
4942 | XDR_INTERCEPTOR(xdr_u_longlong_t, unsigned long long) | |
4943 | XDR_INTERCEPTOR(xdr_int8_t, u8) | |
4944 | XDR_INTERCEPTOR(xdr_uint8_t, u8) | |
4945 | XDR_INTERCEPTOR(xdr_int16_t, u16) | |
4946 | XDR_INTERCEPTOR(xdr_uint16_t, u16) | |
4947 | XDR_INTERCEPTOR(xdr_int32_t, u32) | |
4948 | XDR_INTERCEPTOR(xdr_uint32_t, u32) | |
4949 | XDR_INTERCEPTOR(xdr_int64_t, u64) | |
4950 | XDR_INTERCEPTOR(xdr_uint64_t, u64) | |
4951 | XDR_INTERCEPTOR(xdr_quad_t, long long) | |
4952 | XDR_INTERCEPTOR(xdr_u_quad_t, unsigned long long) | |
4953 | XDR_INTERCEPTOR(xdr_bool, bool) | |
4954 | XDR_INTERCEPTOR(xdr_enum, int) | |
4955 | XDR_INTERCEPTOR(xdr_char, char) | |
4956 | XDR_INTERCEPTOR(xdr_u_char, unsigned char) | |
4957 | XDR_INTERCEPTOR(xdr_float, float) | |
4958 | XDR_INTERCEPTOR(xdr_double, double) | |
4959 | ||
4960 | // FIXME: intercept xdr_array, opaque, union, vector, reference, pointer, | |
4961 | // wrapstring, sizeof | |
4962 | ||
4963 | INTERCEPTOR(int, xdr_bytes, __sanitizer_XDR *xdrs, char **p, unsigned *sizep, | |
4964 | unsigned maxsize) { | |
4965 | void *ctx; | |
4966 | COMMON_INTERCEPTOR_ENTER(ctx, xdr_bytes, xdrs, p, sizep, maxsize); | |
4967 | if (p && sizep && xdrs->x_op == __sanitizer_XDR_ENCODE) { | |
4968 | COMMON_INTERCEPTOR_READ_RANGE(ctx, p, sizeof(*p)); | |
4969 | COMMON_INTERCEPTOR_READ_RANGE(ctx, sizep, sizeof(*sizep)); | |
4970 | COMMON_INTERCEPTOR_READ_RANGE(ctx, *p, *sizep); | |
4971 | } | |
92a42be0 SL |
4972 | // FIXME: under ASan the call below may write to freed memory and corrupt |
4973 | // its metadata. See | |
3157f602 | 4974 | // https://github.com/google/sanitizers/issues/321. |
1a4d82fc JJ |
4975 | int res = REAL(xdr_bytes)(xdrs, p, sizep, maxsize); |
4976 | if (p && sizep && xdrs->x_op == __sanitizer_XDR_DECODE) { | |
4977 | COMMON_INTERCEPTOR_WRITE_RANGE(ctx, p, sizeof(*p)); | |
4978 | COMMON_INTERCEPTOR_WRITE_RANGE(ctx, sizep, sizeof(*sizep)); | |
4979 | if (res && *p && *sizep) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, *p, *sizep); | |
4980 | } | |
4981 | return res; | |
4982 | } | |
4983 | ||
4984 | INTERCEPTOR(int, xdr_string, __sanitizer_XDR *xdrs, char **p, | |
4985 | unsigned maxsize) { | |
4986 | void *ctx; | |
4987 | COMMON_INTERCEPTOR_ENTER(ctx, xdr_string, xdrs, p, maxsize); | |
4988 | if (p && xdrs->x_op == __sanitizer_XDR_ENCODE) { | |
4989 | COMMON_INTERCEPTOR_READ_RANGE(ctx, p, sizeof(*p)); | |
4990 | COMMON_INTERCEPTOR_READ_RANGE(ctx, *p, REAL(strlen)(*p) + 1); | |
4991 | } | |
92a42be0 SL |
4992 | // FIXME: under ASan the call below may write to freed memory and corrupt |
4993 | // its metadata. See | |
3157f602 | 4994 | // https://github.com/google/sanitizers/issues/321. |
1a4d82fc JJ |
4995 | int res = REAL(xdr_string)(xdrs, p, maxsize); |
4996 | if (p && xdrs->x_op == __sanitizer_XDR_DECODE) { | |
4997 | COMMON_INTERCEPTOR_WRITE_RANGE(ctx, p, sizeof(*p)); | |
4998 | if (res && *p) | |
4999 | COMMON_INTERCEPTOR_WRITE_RANGE(ctx, *p, REAL(strlen)(*p) + 1); | |
5000 | } | |
5001 | return res; | |
5002 | } | |
5003 | ||
5004 | #define INIT_XDR \ | |
5005 | COMMON_INTERCEPT_FUNCTION(xdrmem_create); \ | |
5006 | COMMON_INTERCEPT_FUNCTION(xdrstdio_create); \ | |
5007 | COMMON_INTERCEPT_FUNCTION(xdr_short); \ | |
5008 | COMMON_INTERCEPT_FUNCTION(xdr_u_short); \ | |
5009 | COMMON_INTERCEPT_FUNCTION(xdr_int); \ | |
5010 | COMMON_INTERCEPT_FUNCTION(xdr_u_int); \ | |
5011 | COMMON_INTERCEPT_FUNCTION(xdr_long); \ | |
5012 | COMMON_INTERCEPT_FUNCTION(xdr_u_long); \ | |
5013 | COMMON_INTERCEPT_FUNCTION(xdr_hyper); \ | |
5014 | COMMON_INTERCEPT_FUNCTION(xdr_u_hyper); \ | |
5015 | COMMON_INTERCEPT_FUNCTION(xdr_longlong_t); \ | |
5016 | COMMON_INTERCEPT_FUNCTION(xdr_u_longlong_t); \ | |
5017 | COMMON_INTERCEPT_FUNCTION(xdr_int8_t); \ | |
5018 | COMMON_INTERCEPT_FUNCTION(xdr_uint8_t); \ | |
5019 | COMMON_INTERCEPT_FUNCTION(xdr_int16_t); \ | |
5020 | COMMON_INTERCEPT_FUNCTION(xdr_uint16_t); \ | |
5021 | COMMON_INTERCEPT_FUNCTION(xdr_int32_t); \ | |
5022 | COMMON_INTERCEPT_FUNCTION(xdr_uint32_t); \ | |
5023 | COMMON_INTERCEPT_FUNCTION(xdr_int64_t); \ | |
5024 | COMMON_INTERCEPT_FUNCTION(xdr_uint64_t); \ | |
5025 | COMMON_INTERCEPT_FUNCTION(xdr_quad_t); \ | |
5026 | COMMON_INTERCEPT_FUNCTION(xdr_u_quad_t); \ | |
5027 | COMMON_INTERCEPT_FUNCTION(xdr_bool); \ | |
5028 | COMMON_INTERCEPT_FUNCTION(xdr_enum); \ | |
5029 | COMMON_INTERCEPT_FUNCTION(xdr_char); \ | |
5030 | COMMON_INTERCEPT_FUNCTION(xdr_u_char); \ | |
5031 | COMMON_INTERCEPT_FUNCTION(xdr_float); \ | |
5032 | COMMON_INTERCEPT_FUNCTION(xdr_double); \ | |
5033 | COMMON_INTERCEPT_FUNCTION(xdr_bytes); \ | |
5034 | COMMON_INTERCEPT_FUNCTION(xdr_string); | |
5035 | #else | |
5036 | #define INIT_XDR | |
5037 | #endif // SANITIZER_INTERCEPT_XDR | |
5038 | ||
5039 | #if SANITIZER_INTERCEPT_TSEARCH | |
5040 | INTERCEPTOR(void *, tsearch, void *key, void **rootp, | |
5041 | int (*compar)(const void *, const void *)) { | |
5042 | void *ctx; | |
5043 | COMMON_INTERCEPTOR_ENTER(ctx, tsearch, key, rootp, compar); | |
92a42be0 SL |
5044 | // FIXME: under ASan the call below may write to freed memory and corrupt |
5045 | // its metadata. See | |
3157f602 | 5046 | // https://github.com/google/sanitizers/issues/321. |
1a4d82fc JJ |
5047 | void *res = REAL(tsearch)(key, rootp, compar); |
5048 | if (res && *(void **)res == key) | |
5049 | COMMON_INTERCEPTOR_WRITE_RANGE(ctx, res, sizeof(void *)); | |
5050 | return res; | |
5051 | } | |
5052 | #define INIT_TSEARCH COMMON_INTERCEPT_FUNCTION(tsearch); | |
5053 | #else | |
5054 | #define INIT_TSEARCH | |
5055 | #endif | |
5056 | ||
5057 | #if SANITIZER_INTERCEPT_LIBIO_INTERNALS || SANITIZER_INTERCEPT_FOPEN || \ | |
5058 | SANITIZER_INTERCEPT_OPEN_MEMSTREAM | |
5059 | void unpoison_file(__sanitizer_FILE *fp) { | |
92a42be0 | 5060 | #if SANITIZER_HAS_STRUCT_FILE |
1a4d82fc JJ |
5061 | COMMON_INTERCEPTOR_INITIALIZE_RANGE(fp, sizeof(*fp)); |
5062 | if (fp->_IO_read_base && fp->_IO_read_base < fp->_IO_read_end) | |
5063 | COMMON_INTERCEPTOR_INITIALIZE_RANGE(fp->_IO_read_base, | |
5064 | fp->_IO_read_end - fp->_IO_read_base); | |
92a42be0 | 5065 | #endif // SANITIZER_HAS_STRUCT_FILE |
1a4d82fc JJ |
5066 | } |
5067 | #endif | |
5068 | ||
5069 | #if SANITIZER_INTERCEPT_LIBIO_INTERNALS | |
5070 | // These guys are called when a .c source is built with -O2. | |
5071 | INTERCEPTOR(int, __uflow, __sanitizer_FILE *fp) { | |
5072 | void *ctx; | |
5073 | COMMON_INTERCEPTOR_ENTER(ctx, __uflow, fp); | |
5074 | int res = REAL(__uflow)(fp); | |
5075 | unpoison_file(fp); | |
5076 | return res; | |
5077 | } | |
5078 | INTERCEPTOR(int, __underflow, __sanitizer_FILE *fp) { | |
5079 | void *ctx; | |
5080 | COMMON_INTERCEPTOR_ENTER(ctx, __underflow, fp); | |
5081 | int res = REAL(__underflow)(fp); | |
5082 | unpoison_file(fp); | |
5083 | return res; | |
5084 | } | |
5085 | INTERCEPTOR(int, __overflow, __sanitizer_FILE *fp, int ch) { | |
5086 | void *ctx; | |
5087 | COMMON_INTERCEPTOR_ENTER(ctx, __overflow, fp, ch); | |
5088 | int res = REAL(__overflow)(fp, ch); | |
5089 | unpoison_file(fp); | |
5090 | return res; | |
5091 | } | |
5092 | INTERCEPTOR(int, __wuflow, __sanitizer_FILE *fp) { | |
5093 | void *ctx; | |
5094 | COMMON_INTERCEPTOR_ENTER(ctx, __wuflow, fp); | |
5095 | int res = REAL(__wuflow)(fp); | |
5096 | unpoison_file(fp); | |
5097 | return res; | |
5098 | } | |
5099 | INTERCEPTOR(int, __wunderflow, __sanitizer_FILE *fp) { | |
5100 | void *ctx; | |
5101 | COMMON_INTERCEPTOR_ENTER(ctx, __wunderflow, fp); | |
5102 | int res = REAL(__wunderflow)(fp); | |
5103 | unpoison_file(fp); | |
5104 | return res; | |
5105 | } | |
5106 | INTERCEPTOR(int, __woverflow, __sanitizer_FILE *fp, int ch) { | |
5107 | void *ctx; | |
5108 | COMMON_INTERCEPTOR_ENTER(ctx, __woverflow, fp, ch); | |
5109 | int res = REAL(__woverflow)(fp, ch); | |
5110 | unpoison_file(fp); | |
5111 | return res; | |
5112 | } | |
5113 | #define INIT_LIBIO_INTERNALS \ | |
5114 | COMMON_INTERCEPT_FUNCTION(__uflow); \ | |
5115 | COMMON_INTERCEPT_FUNCTION(__underflow); \ | |
5116 | COMMON_INTERCEPT_FUNCTION(__overflow); \ | |
5117 | COMMON_INTERCEPT_FUNCTION(__wuflow); \ | |
5118 | COMMON_INTERCEPT_FUNCTION(__wunderflow); \ | |
5119 | COMMON_INTERCEPT_FUNCTION(__woverflow); | |
5120 | #else | |
5121 | #define INIT_LIBIO_INTERNALS | |
5122 | #endif | |
5123 | ||
5124 | #if SANITIZER_INTERCEPT_FOPEN | |
5125 | INTERCEPTOR(__sanitizer_FILE *, fopen, const char *path, const char *mode) { | |
5126 | void *ctx; | |
5127 | COMMON_INTERCEPTOR_ENTER(ctx, fopen, path, mode); | |
3157f602 | 5128 | if (path) COMMON_INTERCEPTOR_READ_RANGE(ctx, path, REAL(strlen)(path) + 1); |
1a4d82fc JJ |
5129 | COMMON_INTERCEPTOR_READ_RANGE(ctx, mode, REAL(strlen)(mode) + 1); |
5130 | __sanitizer_FILE *res = REAL(fopen)(path, mode); | |
5131 | COMMON_INTERCEPTOR_FILE_OPEN(ctx, res, path); | |
5132 | if (res) unpoison_file(res); | |
5133 | return res; | |
5134 | } | |
1a4d82fc JJ |
5135 | INTERCEPTOR(__sanitizer_FILE *, fdopen, int fd, const char *mode) { |
5136 | void *ctx; | |
5137 | COMMON_INTERCEPTOR_ENTER(ctx, fdopen, fd, mode); | |
5138 | COMMON_INTERCEPTOR_READ_RANGE(ctx, mode, REAL(strlen)(mode) + 1); | |
5139 | __sanitizer_FILE *res = REAL(fdopen)(fd, mode); | |
5140 | if (res) unpoison_file(res); | |
5141 | return res; | |
5142 | } | |
5143 | INTERCEPTOR(__sanitizer_FILE *, freopen, const char *path, const char *mode, | |
5144 | __sanitizer_FILE *fp) { | |
5145 | void *ctx; | |
5146 | COMMON_INTERCEPTOR_ENTER(ctx, freopen, path, mode, fp); | |
92a42be0 | 5147 | if (path) COMMON_INTERCEPTOR_READ_RANGE(ctx, path, REAL(strlen)(path) + 1); |
1a4d82fc JJ |
5148 | COMMON_INTERCEPTOR_READ_RANGE(ctx, mode, REAL(strlen)(mode) + 1); |
5149 | COMMON_INTERCEPTOR_FILE_CLOSE(ctx, fp); | |
5150 | __sanitizer_FILE *res = REAL(freopen)(path, mode, fp); | |
5151 | COMMON_INTERCEPTOR_FILE_OPEN(ctx, res, path); | |
5152 | if (res) unpoison_file(res); | |
5153 | return res; | |
5154 | } | |
92a42be0 SL |
5155 | #define INIT_FOPEN \ |
5156 | COMMON_INTERCEPT_FUNCTION(fopen); \ | |
5157 | COMMON_INTERCEPT_FUNCTION(fdopen); \ | |
5158 | COMMON_INTERCEPT_FUNCTION(freopen); | |
5159 | #else | |
5160 | #define INIT_FOPEN | |
5161 | #endif | |
5162 | ||
5163 | #if SANITIZER_INTERCEPT_FOPEN64 | |
5164 | INTERCEPTOR(__sanitizer_FILE *, fopen64, const char *path, const char *mode) { | |
5165 | void *ctx; | |
5166 | COMMON_INTERCEPTOR_ENTER(ctx, fopen64, path, mode); | |
5167 | COMMON_INTERCEPTOR_READ_RANGE(ctx, path, REAL(strlen)(path) + 1); | |
5168 | COMMON_INTERCEPTOR_READ_RANGE(ctx, mode, REAL(strlen)(mode) + 1); | |
5169 | __sanitizer_FILE *res = REAL(fopen64)(path, mode); | |
5170 | COMMON_INTERCEPTOR_FILE_OPEN(ctx, res, path); | |
5171 | if (res) unpoison_file(res); | |
5172 | return res; | |
5173 | } | |
1a4d82fc JJ |
5174 | INTERCEPTOR(__sanitizer_FILE *, freopen64, const char *path, const char *mode, |
5175 | __sanitizer_FILE *fp) { | |
5176 | void *ctx; | |
5177 | COMMON_INTERCEPTOR_ENTER(ctx, freopen64, path, mode, fp); | |
92a42be0 | 5178 | if (path) COMMON_INTERCEPTOR_READ_RANGE(ctx, path, REAL(strlen)(path) + 1); |
1a4d82fc JJ |
5179 | COMMON_INTERCEPTOR_READ_RANGE(ctx, mode, REAL(strlen)(mode) + 1); |
5180 | COMMON_INTERCEPTOR_FILE_CLOSE(ctx, fp); | |
5181 | __sanitizer_FILE *res = REAL(freopen64)(path, mode, fp); | |
5182 | COMMON_INTERCEPTOR_FILE_OPEN(ctx, res, path); | |
5183 | if (res) unpoison_file(res); | |
5184 | return res; | |
5185 | } | |
92a42be0 | 5186 | #define INIT_FOPEN64 \ |
1a4d82fc | 5187 | COMMON_INTERCEPT_FUNCTION(fopen64); \ |
1a4d82fc JJ |
5188 | COMMON_INTERCEPT_FUNCTION(freopen64); |
5189 | #else | |
92a42be0 | 5190 | #define INIT_FOPEN64 |
1a4d82fc JJ |
5191 | #endif |
5192 | ||
5193 | #if SANITIZER_INTERCEPT_OPEN_MEMSTREAM | |
5194 | INTERCEPTOR(__sanitizer_FILE *, open_memstream, char **ptr, SIZE_T *sizeloc) { | |
5195 | void *ctx; | |
5196 | COMMON_INTERCEPTOR_ENTER(ctx, open_memstream, ptr, sizeloc); | |
92a42be0 SL |
5197 | // FIXME: under ASan the call below may write to freed memory and corrupt |
5198 | // its metadata. See | |
3157f602 | 5199 | // https://github.com/google/sanitizers/issues/321. |
1a4d82fc JJ |
5200 | __sanitizer_FILE *res = REAL(open_memstream)(ptr, sizeloc); |
5201 | if (res) { | |
5202 | COMMON_INTERCEPTOR_WRITE_RANGE(ctx, ptr, sizeof(*ptr)); | |
5203 | COMMON_INTERCEPTOR_WRITE_RANGE(ctx, sizeloc, sizeof(*sizeloc)); | |
5204 | unpoison_file(res); | |
92a42be0 SL |
5205 | FileMetadata file = {ptr, sizeloc}; |
5206 | SetInterceptorMetadata(res, file); | |
1a4d82fc JJ |
5207 | } |
5208 | return res; | |
5209 | } | |
5210 | INTERCEPTOR(__sanitizer_FILE *, open_wmemstream, wchar_t **ptr, | |
5211 | SIZE_T *sizeloc) { | |
5212 | void *ctx; | |
5213 | COMMON_INTERCEPTOR_ENTER(ctx, open_wmemstream, ptr, sizeloc); | |
5214 | __sanitizer_FILE *res = REAL(open_wmemstream)(ptr, sizeloc); | |
5215 | if (res) { | |
5216 | COMMON_INTERCEPTOR_WRITE_RANGE(ctx, ptr, sizeof(*ptr)); | |
5217 | COMMON_INTERCEPTOR_WRITE_RANGE(ctx, sizeloc, sizeof(*sizeloc)); | |
5218 | unpoison_file(res); | |
92a42be0 SL |
5219 | FileMetadata file = {(char **)ptr, sizeloc}; |
5220 | SetInterceptorMetadata(res, file); | |
1a4d82fc JJ |
5221 | } |
5222 | return res; | |
5223 | } | |
5224 | INTERCEPTOR(__sanitizer_FILE *, fmemopen, void *buf, SIZE_T size, | |
5225 | const char *mode) { | |
5226 | void *ctx; | |
5227 | COMMON_INTERCEPTOR_ENTER(ctx, fmemopen, buf, size, mode); | |
92a42be0 SL |
5228 | // FIXME: under ASan the call below may write to freed memory and corrupt |
5229 | // its metadata. See | |
3157f602 | 5230 | // https://github.com/google/sanitizers/issues/321. |
1a4d82fc JJ |
5231 | __sanitizer_FILE *res = REAL(fmemopen)(buf, size, mode); |
5232 | if (res) unpoison_file(res); | |
5233 | return res; | |
5234 | } | |
5235 | #define INIT_OPEN_MEMSTREAM \ | |
5236 | COMMON_INTERCEPT_FUNCTION(open_memstream); \ | |
5237 | COMMON_INTERCEPT_FUNCTION(open_wmemstream); \ | |
5238 | COMMON_INTERCEPT_FUNCTION(fmemopen); | |
5239 | #else | |
5240 | #define INIT_OPEN_MEMSTREAM | |
5241 | #endif | |
5242 | ||
92a42be0 SL |
5243 | #if SANITIZER_INTERCEPT_OBSTACK |
5244 | static void initialize_obstack(__sanitizer_obstack *obstack) { | |
5245 | COMMON_INTERCEPTOR_INITIALIZE_RANGE(obstack, sizeof(*obstack)); | |
5246 | if (obstack->chunk) | |
5247 | COMMON_INTERCEPTOR_INITIALIZE_RANGE(obstack->chunk, | |
5248 | sizeof(*obstack->chunk)); | |
5249 | } | |
5250 | ||
5251 | INTERCEPTOR(int, _obstack_begin_1, __sanitizer_obstack *obstack, int sz, | |
5252 | int align, void *(*alloc_fn)(uptr arg, uptr sz), | |
5253 | void (*free_fn)(uptr arg, void *p)) { | |
5254 | void *ctx; | |
5255 | COMMON_INTERCEPTOR_ENTER(ctx, _obstack_begin_1, obstack, sz, align, alloc_fn, | |
5256 | free_fn); | |
5257 | int res = REAL(_obstack_begin_1)(obstack, sz, align, alloc_fn, free_fn); | |
5258 | if (res) initialize_obstack(obstack); | |
5259 | return res; | |
5260 | } | |
5261 | INTERCEPTOR(int, _obstack_begin, __sanitizer_obstack *obstack, int sz, | |
5262 | int align, void *(*alloc_fn)(uptr sz), void (*free_fn)(void *p)) { | |
5263 | void *ctx; | |
5264 | COMMON_INTERCEPTOR_ENTER(ctx, _obstack_begin, obstack, sz, align, alloc_fn, | |
5265 | free_fn); | |
5266 | int res = REAL(_obstack_begin)(obstack, sz, align, alloc_fn, free_fn); | |
5267 | if (res) initialize_obstack(obstack); | |
5268 | return res; | |
5269 | } | |
5270 | INTERCEPTOR(void, _obstack_newchunk, __sanitizer_obstack *obstack, int length) { | |
5271 | void *ctx; | |
5272 | COMMON_INTERCEPTOR_ENTER(ctx, _obstack_newchunk, obstack, length); | |
5273 | REAL(_obstack_newchunk)(obstack, length); | |
5274 | if (obstack->chunk) | |
5275 | COMMON_INTERCEPTOR_INITIALIZE_RANGE( | |
5276 | obstack->chunk, obstack->next_free - (char *)obstack->chunk); | |
5277 | } | |
5278 | #define INIT_OBSTACK \ | |
5279 | COMMON_INTERCEPT_FUNCTION(_obstack_begin_1); \ | |
5280 | COMMON_INTERCEPT_FUNCTION(_obstack_begin); \ | |
5281 | COMMON_INTERCEPT_FUNCTION(_obstack_newchunk); | |
5282 | #else | |
5283 | #define INIT_OBSTACK | |
5284 | #endif | |
5285 | ||
5286 | #if SANITIZER_INTERCEPT_FFLUSH | |
5287 | INTERCEPTOR(int, fflush, __sanitizer_FILE *fp) { | |
5288 | void *ctx; | |
5289 | COMMON_INTERCEPTOR_ENTER(ctx, fflush, fp); | |
5290 | int res = REAL(fflush)(fp); | |
5291 | // FIXME: handle fp == NULL | |
5292 | if (fp) { | |
5293 | const FileMetadata *m = GetInterceptorMetadata(fp); | |
5294 | if (m) COMMON_INTERCEPTOR_INITIALIZE_RANGE(*m->addr, *m->size); | |
5295 | } | |
5296 | return res; | |
5297 | } | |
5298 | #define INIT_FFLUSH COMMON_INTERCEPT_FUNCTION(fflush); | |
5299 | #else | |
5300 | #define INIT_FFLUSH | |
5301 | #endif | |
5302 | ||
5303 | #if SANITIZER_INTERCEPT_FCLOSE | |
5304 | INTERCEPTOR(int, fclose, __sanitizer_FILE *fp) { | |
5305 | void *ctx; | |
5306 | COMMON_INTERCEPTOR_ENTER(ctx, fclose, fp); | |
5307 | COMMON_INTERCEPTOR_FILE_CLOSE(ctx, fp); | |
5308 | const FileMetadata *m = GetInterceptorMetadata(fp); | |
5309 | int res = REAL(fclose)(fp); | |
5310 | if (m) { | |
5311 | COMMON_INTERCEPTOR_INITIALIZE_RANGE(*m->addr, *m->size); | |
5312 | DeleteInterceptorMetadata(fp); | |
5313 | } | |
5314 | return res; | |
5315 | } | |
5316 | #define INIT_FCLOSE COMMON_INTERCEPT_FUNCTION(fclose); | |
5317 | #else | |
5318 | #define INIT_FCLOSE | |
5319 | #endif | |
5320 | ||
5321 | #if SANITIZER_INTERCEPT_DLOPEN_DLCLOSE | |
5322 | INTERCEPTOR(void*, dlopen, const char *filename, int flag) { | |
5323 | void *ctx; | |
5324 | COMMON_INTERCEPTOR_ENTER_NOIGNORE(ctx, dlopen, filename, flag); | |
5325 | if (filename) COMMON_INTERCEPTOR_READ_STRING(ctx, filename, 0); | |
5326 | COMMON_INTERCEPTOR_ON_DLOPEN(filename, flag); | |
5327 | void *res = REAL(dlopen)(filename, flag); | |
5328 | COMMON_INTERCEPTOR_LIBRARY_LOADED(filename, res); | |
5329 | return res; | |
5330 | } | |
5331 | ||
5332 | INTERCEPTOR(int, dlclose, void *handle) { | |
5333 | void *ctx; | |
5334 | COMMON_INTERCEPTOR_ENTER_NOIGNORE(ctx, dlclose, handle); | |
5335 | int res = REAL(dlclose)(handle); | |
5336 | COMMON_INTERCEPTOR_LIBRARY_UNLOADED(); | |
5337 | return res; | |
5338 | } | |
5339 | #define INIT_DLOPEN_DLCLOSE \ | |
5340 | COMMON_INTERCEPT_FUNCTION(dlopen); \ | |
5341 | COMMON_INTERCEPT_FUNCTION(dlclose); | |
5342 | #else | |
5343 | #define INIT_DLOPEN_DLCLOSE | |
5344 | #endif | |
5345 | ||
5346 | #if SANITIZER_INTERCEPT_GETPASS | |
5347 | INTERCEPTOR(char *, getpass, const char *prompt) { | |
5348 | void *ctx; | |
5349 | COMMON_INTERCEPTOR_ENTER(ctx, getpass, prompt); | |
5350 | if (prompt) | |
5351 | COMMON_INTERCEPTOR_READ_RANGE(ctx, prompt, REAL(strlen)(prompt)+1); | |
5352 | char *res = REAL(getpass)(prompt); | |
5353 | if (res) COMMON_INTERCEPTOR_INITIALIZE_RANGE(res, REAL(strlen)(res)+1); | |
5354 | return res; | |
5355 | } | |
5356 | ||
5357 | #define INIT_GETPASS COMMON_INTERCEPT_FUNCTION(getpass); | |
5358 | #else | |
5359 | #define INIT_GETPASS | |
5360 | #endif | |
5361 | ||
5362 | #if SANITIZER_INTERCEPT_TIMERFD | |
5363 | INTERCEPTOR(int, timerfd_settime, int fd, int flags, void *new_value, | |
5364 | void *old_value) { | |
5365 | void *ctx; | |
5366 | COMMON_INTERCEPTOR_ENTER(ctx, timerfd_settime, fd, flags, new_value, | |
5367 | old_value); | |
5368 | COMMON_INTERCEPTOR_READ_RANGE(ctx, new_value, struct_itimerspec_sz); | |
5369 | int res = REAL(timerfd_settime)(fd, flags, new_value, old_value); | |
5370 | if (res != -1 && old_value) | |
5371 | COMMON_INTERCEPTOR_WRITE_RANGE(ctx, old_value, struct_itimerspec_sz); | |
5372 | return res; | |
5373 | } | |
5374 | ||
5375 | INTERCEPTOR(int, timerfd_gettime, int fd, void *curr_value) { | |
5376 | void *ctx; | |
5377 | COMMON_INTERCEPTOR_ENTER(ctx, timerfd_gettime, fd, curr_value); | |
5378 | int res = REAL(timerfd_gettime)(fd, curr_value); | |
5379 | if (res != -1 && curr_value) | |
5380 | COMMON_INTERCEPTOR_WRITE_RANGE(ctx, curr_value, struct_itimerspec_sz); | |
5381 | return res; | |
5382 | } | |
5383 | #define INIT_TIMERFD \ | |
5384 | COMMON_INTERCEPT_FUNCTION(timerfd_settime); \ | |
5385 | COMMON_INTERCEPT_FUNCTION(timerfd_gettime); | |
5386 | #else | |
5387 | #define INIT_TIMERFD | |
5388 | #endif | |
5389 | ||
5390 | #if SANITIZER_INTERCEPT_MLOCKX | |
5391 | // Linux kernel has a bug that leads to kernel deadlock if a process | |
5392 | // maps TBs of memory and then calls mlock(). | |
5393 | static void MlockIsUnsupported() { | |
5394 | static atomic_uint8_t printed; | |
5395 | if (atomic_exchange(&printed, 1, memory_order_relaxed)) | |
5396 | return; | |
5397 | VPrintf(1, "%s ignores mlock/mlockall/munlock/munlockall\n", | |
5398 | SanitizerToolName); | |
5399 | } | |
5400 | ||
5401 | INTERCEPTOR(int, mlock, const void *addr, uptr len) { | |
5402 | MlockIsUnsupported(); | |
5403 | return 0; | |
5404 | } | |
5405 | ||
5406 | INTERCEPTOR(int, munlock, const void *addr, uptr len) { | |
5407 | MlockIsUnsupported(); | |
5408 | return 0; | |
5409 | } | |
5410 | ||
5411 | INTERCEPTOR(int, mlockall, int flags) { | |
5412 | MlockIsUnsupported(); | |
5413 | return 0; | |
5414 | } | |
5415 | ||
5416 | INTERCEPTOR(int, munlockall, void) { | |
5417 | MlockIsUnsupported(); | |
5418 | return 0; | |
5419 | } | |
5420 | ||
5421 | #define INIT_MLOCKX \ | |
5422 | COMMON_INTERCEPT_FUNCTION(mlock); \ | |
5423 | COMMON_INTERCEPT_FUNCTION(munlock); \ | |
5424 | COMMON_INTERCEPT_FUNCTION(mlockall); \ | |
5425 | COMMON_INTERCEPT_FUNCTION(munlockall); | |
5426 | ||
5427 | #else | |
5428 | #define INIT_MLOCKX | |
5429 | #endif // SANITIZER_INTERCEPT_MLOCKX | |
5430 | ||
5431 | #if SANITIZER_INTERCEPT_FOPENCOOKIE | |
5432 | struct WrappedCookie { | |
5433 | void *real_cookie; | |
5434 | __sanitizer_cookie_io_functions_t real_io_funcs; | |
5435 | }; | |
5436 | ||
5437 | static uptr wrapped_read(void *cookie, char *buf, uptr size) { | |
5438 | COMMON_INTERCEPTOR_UNPOISON_PARAM(3); | |
5439 | WrappedCookie *wrapped_cookie = (WrappedCookie *)cookie; | |
5440 | __sanitizer_cookie_io_read real_read = wrapped_cookie->real_io_funcs.read; | |
5441 | return real_read ? real_read(wrapped_cookie->real_cookie, buf, size) : 0; | |
5442 | } | |
5443 | ||
5444 | static uptr wrapped_write(void *cookie, const char *buf, uptr size) { | |
5445 | COMMON_INTERCEPTOR_UNPOISON_PARAM(3); | |
5446 | WrappedCookie *wrapped_cookie = (WrappedCookie *)cookie; | |
5447 | __sanitizer_cookie_io_write real_write = wrapped_cookie->real_io_funcs.write; | |
5448 | return real_write ? real_write(wrapped_cookie->real_cookie, buf, size) : size; | |
5449 | } | |
5450 | ||
5451 | static int wrapped_seek(void *cookie, u64 *offset, int whence) { | |
5452 | COMMON_INTERCEPTOR_UNPOISON_PARAM(3); | |
5453 | COMMON_INTERCEPTOR_INITIALIZE_RANGE(offset, sizeof(*offset)); | |
5454 | WrappedCookie *wrapped_cookie = (WrappedCookie *)cookie; | |
5455 | __sanitizer_cookie_io_seek real_seek = wrapped_cookie->real_io_funcs.seek; | |
5456 | return real_seek ? real_seek(wrapped_cookie->real_cookie, offset, whence) | |
5457 | : -1; | |
5458 | } | |
5459 | ||
5460 | static int wrapped_close(void *cookie) { | |
5461 | COMMON_INTERCEPTOR_UNPOISON_PARAM(1); | |
5462 | WrappedCookie *wrapped_cookie = (WrappedCookie *)cookie; | |
5463 | __sanitizer_cookie_io_close real_close = wrapped_cookie->real_io_funcs.close; | |
5464 | int res = real_close ? real_close(wrapped_cookie->real_cookie) : 0; | |
5465 | InternalFree(wrapped_cookie); | |
5466 | return res; | |
5467 | } | |
5468 | ||
5469 | INTERCEPTOR(__sanitizer_FILE *, fopencookie, void *cookie, const char *mode, | |
5470 | __sanitizer_cookie_io_functions_t io_funcs) { | |
5471 | void *ctx; | |
5472 | COMMON_INTERCEPTOR_ENTER(ctx, fopencookie, cookie, mode, io_funcs); | |
5473 | WrappedCookie *wrapped_cookie = | |
5474 | (WrappedCookie *)InternalAlloc(sizeof(WrappedCookie)); | |
5475 | wrapped_cookie->real_cookie = cookie; | |
5476 | wrapped_cookie->real_io_funcs = io_funcs; | |
5477 | __sanitizer_FILE *res = | |
5478 | REAL(fopencookie)(wrapped_cookie, mode, {wrapped_read, wrapped_write, | |
5479 | wrapped_seek, wrapped_close}); | |
5480 | return res; | |
5481 | } | |
5482 | ||
5483 | #define INIT_FOPENCOOKIE COMMON_INTERCEPT_FUNCTION(fopencookie); | |
5484 | #else | |
5485 | #define INIT_FOPENCOOKIE | |
5486 | #endif // SANITIZER_INTERCEPT_FOPENCOOKIE | |
5487 | ||
5488 | #if SANITIZER_INTERCEPT_SEM | |
5489 | INTERCEPTOR(int, sem_init, __sanitizer_sem_t *s, int pshared, unsigned value) { | |
5490 | void *ctx; | |
5491 | COMMON_INTERCEPTOR_ENTER(ctx, sem_init, s, pshared, value); | |
5492 | // Workaround a bug in glibc's "old" semaphore implementation by | |
5493 | // zero-initializing the sem_t contents. This has to be done here because | |
5494 | // interceptors bind to the lowest symbols version by default, hitting the | |
5495 | // buggy code path while the non-sanitized build of the same code works fine. | |
5496 | REAL(memset)(s, 0, sizeof(*s)); | |
5497 | int res = REAL(sem_init)(s, pshared, value); | |
5498 | return res; | |
5499 | } | |
5500 | ||
5501 | INTERCEPTOR(int, sem_destroy, __sanitizer_sem_t *s) { | |
5502 | void *ctx; | |
5503 | COMMON_INTERCEPTOR_ENTER(ctx, sem_destroy, s); | |
5504 | int res = REAL(sem_destroy)(s); | |
5505 | return res; | |
5506 | } | |
5507 | ||
5508 | INTERCEPTOR(int, sem_wait, __sanitizer_sem_t *s) { | |
5509 | void *ctx; | |
5510 | COMMON_INTERCEPTOR_ENTER(ctx, sem_wait, s); | |
5511 | int res = COMMON_INTERCEPTOR_BLOCK_REAL(sem_wait)(s); | |
5512 | if (res == 0) { | |
5513 | COMMON_INTERCEPTOR_ACQUIRE(ctx, (uptr)s); | |
5514 | } | |
5515 | return res; | |
5516 | } | |
5517 | ||
5518 | INTERCEPTOR(int, sem_trywait, __sanitizer_sem_t *s) { | |
5519 | void *ctx; | |
5520 | COMMON_INTERCEPTOR_ENTER(ctx, sem_trywait, s); | |
5521 | int res = COMMON_INTERCEPTOR_BLOCK_REAL(sem_trywait)(s); | |
5522 | if (res == 0) { | |
5523 | COMMON_INTERCEPTOR_ACQUIRE(ctx, (uptr)s); | |
5524 | } | |
5525 | return res; | |
5526 | } | |
5527 | ||
5528 | INTERCEPTOR(int, sem_timedwait, __sanitizer_sem_t *s, void *abstime) { | |
5529 | void *ctx; | |
5530 | COMMON_INTERCEPTOR_ENTER(ctx, sem_timedwait, s, abstime); | |
5531 | COMMON_INTERCEPTOR_READ_RANGE(ctx, abstime, struct_timespec_sz); | |
5532 | int res = COMMON_INTERCEPTOR_BLOCK_REAL(sem_timedwait)(s, abstime); | |
5533 | if (res == 0) { | |
5534 | COMMON_INTERCEPTOR_ACQUIRE(ctx, (uptr)s); | |
5535 | } | |
5536 | return res; | |
5537 | } | |
5538 | ||
5539 | INTERCEPTOR(int, sem_post, __sanitizer_sem_t *s) { | |
5540 | void *ctx; | |
5541 | COMMON_INTERCEPTOR_ENTER(ctx, sem_post, s); | |
5542 | COMMON_INTERCEPTOR_RELEASE(ctx, (uptr)s); | |
5543 | int res = REAL(sem_post)(s); | |
5544 | return res; | |
5545 | } | |
5546 | ||
5547 | INTERCEPTOR(int, sem_getvalue, __sanitizer_sem_t *s, int *sval) { | |
5548 | void *ctx; | |
5549 | COMMON_INTERCEPTOR_ENTER(ctx, sem_getvalue, s, sval); | |
5550 | int res = REAL(sem_getvalue)(s, sval); | |
5551 | if (res == 0) { | |
5552 | COMMON_INTERCEPTOR_ACQUIRE(ctx, (uptr)s); | |
5553 | COMMON_INTERCEPTOR_WRITE_RANGE(ctx, sval, sizeof(*sval)); | |
5554 | } | |
5555 | return res; | |
5556 | } | |
5557 | #define INIT_SEM \ | |
5558 | COMMON_INTERCEPT_FUNCTION(sem_init); \ | |
5559 | COMMON_INTERCEPT_FUNCTION(sem_destroy); \ | |
5560 | COMMON_INTERCEPT_FUNCTION(sem_wait); \ | |
5561 | COMMON_INTERCEPT_FUNCTION(sem_trywait); \ | |
5562 | COMMON_INTERCEPT_FUNCTION(sem_timedwait); \ | |
5563 | COMMON_INTERCEPT_FUNCTION(sem_post); \ | |
5564 | COMMON_INTERCEPT_FUNCTION(sem_getvalue); | |
5565 | #else | |
5566 | #define INIT_SEM | |
5567 | #endif // SANITIZER_INTERCEPT_SEM | |
5568 | ||
5569 | #if SANITIZER_INTERCEPT_PTHREAD_SETCANCEL | |
5570 | INTERCEPTOR(int, pthread_setcancelstate, int state, int *oldstate) { | |
5571 | void *ctx; | |
5572 | COMMON_INTERCEPTOR_ENTER(ctx, pthread_setcancelstate, state, oldstate); | |
5573 | int res = REAL(pthread_setcancelstate)(state, oldstate); | |
5574 | if (res == 0) | |
5575 | COMMON_INTERCEPTOR_WRITE_RANGE(ctx, oldstate, sizeof(*oldstate)); | |
5576 | return res; | |
5577 | } | |
5578 | ||
5579 | INTERCEPTOR(int, pthread_setcanceltype, int type, int *oldtype) { | |
5580 | void *ctx; | |
5581 | COMMON_INTERCEPTOR_ENTER(ctx, pthread_setcanceltype, type, oldtype); | |
5582 | int res = REAL(pthread_setcanceltype)(type, oldtype); | |
5583 | if (res == 0) | |
5584 | COMMON_INTERCEPTOR_WRITE_RANGE(ctx, oldtype, sizeof(*oldtype)); | |
5585 | return res; | |
5586 | } | |
5587 | #define INIT_PTHREAD_SETCANCEL \ | |
5588 | COMMON_INTERCEPT_FUNCTION(pthread_setcancelstate); \ | |
5589 | COMMON_INTERCEPT_FUNCTION(pthread_setcanceltype); | |
5590 | #else | |
5591 | #define INIT_PTHREAD_SETCANCEL | |
5592 | #endif | |
5593 | ||
5594 | #if SANITIZER_INTERCEPT_MINCORE | |
5595 | INTERCEPTOR(int, mincore, void *addr, uptr length, unsigned char *vec) { | |
5596 | void *ctx; | |
5597 | COMMON_INTERCEPTOR_ENTER(ctx, mincore, addr, length, vec); | |
5598 | int res = REAL(mincore)(addr, length, vec); | |
5599 | if (res == 0) { | |
5600 | uptr page_size = GetPageSizeCached(); | |
5601 | uptr vec_size = ((length + page_size - 1) & (~(page_size - 1))) / page_size; | |
5602 | COMMON_INTERCEPTOR_WRITE_RANGE(ctx, vec, vec_size); | |
5603 | } | |
5604 | return res; | |
5605 | } | |
5606 | #define INIT_MINCORE COMMON_INTERCEPT_FUNCTION(mincore); | |
5607 | #else | |
5608 | #define INIT_MINCORE | |
5609 | #endif | |
5610 | ||
5611 | #if SANITIZER_INTERCEPT_PROCESS_VM_READV | |
5612 | INTERCEPTOR(SSIZE_T, process_vm_readv, int pid, __sanitizer_iovec *local_iov, | |
5613 | uptr liovcnt, __sanitizer_iovec *remote_iov, uptr riovcnt, | |
5614 | uptr flags) { | |
5615 | void *ctx; | |
5616 | COMMON_INTERCEPTOR_ENTER(ctx, process_vm_readv, pid, local_iov, liovcnt, | |
5617 | remote_iov, riovcnt, flags); | |
5618 | SSIZE_T res = REAL(process_vm_readv)(pid, local_iov, liovcnt, remote_iov, | |
5619 | riovcnt, flags); | |
5620 | if (res > 0) | |
5621 | write_iovec(ctx, local_iov, liovcnt, res); | |
5622 | return res; | |
5623 | } | |
5624 | ||
5625 | INTERCEPTOR(SSIZE_T, process_vm_writev, int pid, __sanitizer_iovec *local_iov, | |
5626 | uptr liovcnt, __sanitizer_iovec *remote_iov, uptr riovcnt, | |
5627 | uptr flags) { | |
5628 | void *ctx; | |
5629 | COMMON_INTERCEPTOR_ENTER(ctx, process_vm_writev, pid, local_iov, liovcnt, | |
5630 | remote_iov, riovcnt, flags); | |
5631 | SSIZE_T res = REAL(process_vm_writev)(pid, local_iov, liovcnt, remote_iov, | |
5632 | riovcnt, flags); | |
5633 | if (res > 0) | |
5634 | read_iovec(ctx, local_iov, liovcnt, res); | |
5635 | return res; | |
5636 | } | |
5637 | #define INIT_PROCESS_VM_READV \ | |
5638 | COMMON_INTERCEPT_FUNCTION(process_vm_readv); \ | |
5639 | COMMON_INTERCEPT_FUNCTION(process_vm_writev); | |
5640 | #else | |
5641 | #define INIT_PROCESS_VM_READV | |
5642 | #endif | |
5643 | ||
3157f602 XL |
5644 | #if SANITIZER_INTERCEPT_CTERMID |
5645 | INTERCEPTOR(char *, ctermid, char *s) { | |
5646 | void *ctx; | |
5647 | COMMON_INTERCEPTOR_ENTER(ctx, ctermid, s); | |
5648 | char *res = REAL(ctermid)(s); | |
5649 | if (res) { | |
5650 | COMMON_INTERCEPTOR_INITIALIZE_RANGE(res, REAL(strlen)(res) + 1); | |
5651 | } | |
5652 | return res; | |
5653 | } | |
5654 | #define INIT_CTERMID COMMON_INTERCEPT_FUNCTION(ctermid); | |
5655 | #else | |
5656 | #define INIT_CTERMID | |
5657 | #endif | |
5658 | ||
5659 | #if SANITIZER_INTERCEPT_CTERMID_R | |
5660 | INTERCEPTOR(char *, ctermid_r, char *s) { | |
5661 | void *ctx; | |
5662 | COMMON_INTERCEPTOR_ENTER(ctx, ctermid_r, s); | |
5663 | char *res = REAL(ctermid_r)(s); | |
5664 | if (res) { | |
5665 | COMMON_INTERCEPTOR_INITIALIZE_RANGE(res, REAL(strlen)(res) + 1); | |
5666 | } | |
5667 | return res; | |
5668 | } | |
5669 | #define INIT_CTERMID_R COMMON_INTERCEPT_FUNCTION(ctermid_r); | |
5670 | #else | |
5671 | #define INIT_CTERMID_R | |
5672 | #endif | |
5673 | ||
5bcae85e SL |
5674 | #if SANITIZER_INTERCEPT_RECV_RECVFROM |
5675 | INTERCEPTOR(SSIZE_T, recv, int fd, void *buf, SIZE_T len, int flags) { | |
5676 | void *ctx; | |
5677 | COMMON_INTERCEPTOR_ENTER(ctx, recv, fd, buf, len, flags); | |
5678 | COMMON_INTERCEPTOR_FD_ACCESS(ctx, fd); | |
5679 | SSIZE_T res = REAL(recv)(fd, buf, len, flags); | |
5680 | if (res > 0) { | |
5681 | COMMON_INTERCEPTOR_WRITE_RANGE(ctx, buf, Min((SIZE_T)res, len)); | |
5682 | } | |
5683 | if (res >= 0 && fd >= 0) COMMON_INTERCEPTOR_FD_ACQUIRE(ctx, fd); | |
5684 | return res; | |
5685 | } | |
5686 | ||
5687 | INTERCEPTOR(SSIZE_T, recvfrom, int fd, void *buf, SIZE_T len, int flags, | |
5688 | void *srcaddr, int *addrlen) { | |
5689 | void *ctx; | |
5690 | COMMON_INTERCEPTOR_ENTER(ctx, recvfrom, fd, buf, len, flags, srcaddr, | |
5691 | addrlen); | |
5692 | COMMON_INTERCEPTOR_FD_ACCESS(ctx, fd); | |
5693 | SIZE_T srcaddr_sz; | |
5694 | if (srcaddr) srcaddr_sz = *addrlen; | |
5695 | (void)srcaddr_sz; // prevent "set but not used" warning | |
5696 | SSIZE_T res = REAL(recvfrom)(fd, buf, len, flags, srcaddr, addrlen); | |
5697 | if (res > 0) { | |
5698 | COMMON_INTERCEPTOR_WRITE_RANGE(ctx, buf, Min((SIZE_T)res, len)); | |
5699 | if (srcaddr) | |
5700 | COMMON_INTERCEPTOR_INITIALIZE_RANGE(srcaddr, | |
5701 | Min((SIZE_T)*addrlen, srcaddr_sz)); | |
5702 | } | |
5703 | return res; | |
5704 | } | |
5705 | #define INIT_RECV_RECVFROM \ | |
5706 | COMMON_INTERCEPT_FUNCTION(recv); \ | |
5707 | COMMON_INTERCEPT_FUNCTION(recvfrom); | |
5708 | #else | |
5709 | #define INIT_RECV_RECVFROM | |
5710 | #endif | |
5711 | ||
5712 | #if SANITIZER_INTERCEPT_SEND_SENDTO | |
5713 | INTERCEPTOR(SSIZE_T, send, int fd, void *buf, SIZE_T len, int flags) { | |
5714 | void *ctx; | |
5715 | COMMON_INTERCEPTOR_ENTER(ctx, send, fd, buf, len, flags); | |
5716 | if (fd >= 0) { | |
5717 | COMMON_INTERCEPTOR_FD_ACCESS(ctx, fd); | |
5718 | COMMON_INTERCEPTOR_FD_RELEASE(ctx, fd); | |
5719 | } | |
5720 | SSIZE_T res = REAL(send)(fd, buf, len, flags); | |
5721 | if (common_flags()->intercept_send && res > 0) | |
5722 | COMMON_INTERCEPTOR_READ_RANGE(ctx, buf, Min((SIZE_T)res, len)); | |
5723 | return res; | |
5724 | } | |
5725 | ||
5726 | INTERCEPTOR(SSIZE_T, sendto, int fd, void *buf, SIZE_T len, int flags, | |
5727 | void *dstaddr, int addrlen) { | |
5728 | void *ctx; | |
5729 | COMMON_INTERCEPTOR_ENTER(ctx, sendto, fd, buf, len, flags, dstaddr, addrlen); | |
5730 | if (fd >= 0) { | |
5731 | COMMON_INTERCEPTOR_FD_ACCESS(ctx, fd); | |
5732 | COMMON_INTERCEPTOR_FD_RELEASE(ctx, fd); | |
5733 | } | |
5734 | // Can't check dstaddr as it may have uninitialized padding at the end. | |
5735 | SSIZE_T res = REAL(sendto)(fd, buf, len, flags, dstaddr, addrlen); | |
5736 | if (common_flags()->intercept_send && res > 0) | |
5737 | COMMON_INTERCEPTOR_READ_RANGE(ctx, buf, Min((SIZE_T)res, len)); | |
5738 | return res; | |
5739 | } | |
5740 | #define INIT_SEND_SENDTO \ | |
5741 | COMMON_INTERCEPT_FUNCTION(send); \ | |
5742 | COMMON_INTERCEPT_FUNCTION(sendto); | |
5743 | #else | |
5744 | #define INIT_SEND_SENDTO | |
5745 | #endif | |
5746 | ||
5747 | #if SANITIZER_INTERCEPT_EVENTFD_READ_WRITE | |
5748 | INTERCEPTOR(int, eventfd_read, int fd, u64 *value) { | |
5749 | void *ctx; | |
5750 | COMMON_INTERCEPTOR_ENTER(ctx, eventfd_read, fd, value); | |
5751 | COMMON_INTERCEPTOR_FD_ACCESS(ctx, fd); | |
5752 | int res = REAL(eventfd_read)(fd, value); | |
5753 | if (res == 0) { | |
5754 | COMMON_INTERCEPTOR_WRITE_RANGE(ctx, value, sizeof(*value)); | |
5755 | if (fd >= 0) COMMON_INTERCEPTOR_FD_ACQUIRE(ctx, fd); | |
5756 | } | |
5757 | return res; | |
5758 | } | |
5759 | INTERCEPTOR(int, eventfd_write, int fd, u64 value) { | |
5760 | void *ctx; | |
5761 | COMMON_INTERCEPTOR_ENTER(ctx, eventfd_write, fd, value); | |
5762 | if (fd >= 0) { | |
5763 | COMMON_INTERCEPTOR_FD_ACCESS(ctx, fd); | |
5764 | COMMON_INTERCEPTOR_FD_RELEASE(ctx, fd); | |
5765 | } | |
5766 | int res = REAL(eventfd_write)(fd, value); | |
5767 | return res; | |
5768 | } | |
5769 | #define INIT_EVENTFD_READ_WRITE \ | |
5770 | COMMON_INTERCEPT_FUNCTION(eventfd_read); \ | |
5771 | COMMON_INTERCEPT_FUNCTION(eventfd_write) | |
5772 | #else | |
5773 | #define INIT_EVENTFD_READ_WRITE | |
5774 | #endif | |
5775 | ||
5776 | #if SANITIZER_INTERCEPT_STAT | |
5777 | INTERCEPTOR(int, stat, const char *path, void *buf) { | |
5778 | void *ctx; | |
5779 | COMMON_INTERCEPTOR_ENTER(ctx, stat, path, buf); | |
5780 | if (common_flags()->intercept_stat) | |
5781 | COMMON_INTERCEPTOR_READ_STRING(ctx, path, 0); | |
5782 | int res = REAL(stat)(path, buf); | |
5783 | if (!res) | |
5784 | COMMON_INTERCEPTOR_WRITE_RANGE(ctx, buf, __sanitizer::struct_stat_sz); | |
5785 | return res; | |
5786 | } | |
5787 | #define INIT_STAT COMMON_INTERCEPT_FUNCTION(stat) | |
5788 | #else | |
5789 | #define INIT_STAT | |
5790 | #endif | |
5791 | ||
5792 | #if SANITIZER_INTERCEPT___XSTAT | |
5793 | INTERCEPTOR(int, __xstat, int version, const char *path, void *buf) { | |
5794 | void *ctx; | |
5795 | COMMON_INTERCEPTOR_ENTER(ctx, __xstat, version, path, buf); | |
5796 | if (common_flags()->intercept_stat) | |
5797 | COMMON_INTERCEPTOR_READ_STRING(ctx, path, 0); | |
5798 | int res = REAL(__xstat)(version, path, buf); | |
5799 | if (!res) | |
5800 | COMMON_INTERCEPTOR_WRITE_RANGE(ctx, buf, __sanitizer::struct_stat_sz); | |
5801 | return res; | |
5802 | } | |
5803 | #define INIT___XSTAT COMMON_INTERCEPT_FUNCTION(__xstat) | |
5804 | #else | |
5805 | #define INIT___XSTAT | |
5806 | #endif | |
5807 | ||
5808 | #if SANITIZER_INTERCEPT___XSTAT64 | |
5809 | INTERCEPTOR(int, __xstat64, int version, const char *path, void *buf) { | |
5810 | void *ctx; | |
5811 | COMMON_INTERCEPTOR_ENTER(ctx, __xstat64, version, path, buf); | |
5812 | if (common_flags()->intercept_stat) | |
5813 | COMMON_INTERCEPTOR_READ_STRING(ctx, path, 0); | |
5814 | int res = REAL(__xstat64)(version, path, buf); | |
5815 | if (!res) | |
5816 | COMMON_INTERCEPTOR_WRITE_RANGE(ctx, buf, __sanitizer::struct_stat64_sz); | |
5817 | return res; | |
5818 | } | |
5819 | #define INIT___XSTAT64 COMMON_INTERCEPT_FUNCTION(__xstat64) | |
5820 | #else | |
5821 | #define INIT___XSTAT64 | |
5822 | #endif | |
5823 | ||
5824 | #if SANITIZER_INTERCEPT___LXSTAT | |
5825 | INTERCEPTOR(int, __lxstat, int version, const char *path, void *buf) { | |
5826 | void *ctx; | |
5827 | COMMON_INTERCEPTOR_ENTER(ctx, __lxstat, version, path, buf); | |
5828 | if (common_flags()->intercept_stat) | |
5829 | COMMON_INTERCEPTOR_READ_STRING(ctx, path, 0); | |
5830 | int res = REAL(__lxstat)(version, path, buf); | |
5831 | if (!res) | |
5832 | COMMON_INTERCEPTOR_WRITE_RANGE(ctx, buf, __sanitizer::struct_stat_sz); | |
5833 | return res; | |
5834 | } | |
5835 | #define INIT___LXSTAT COMMON_INTERCEPT_FUNCTION(__lxstat) | |
5836 | #else | |
5837 | #define INIT___LXSTAT | |
5838 | #endif | |
5839 | ||
5840 | #if SANITIZER_INTERCEPT___LXSTAT64 | |
5841 | INTERCEPTOR(int, __lxstat64, int version, const char *path, void *buf) { | |
5842 | void *ctx; | |
5843 | COMMON_INTERCEPTOR_ENTER(ctx, __lxstat64, version, path, buf); | |
5844 | if (common_flags()->intercept_stat) | |
5845 | COMMON_INTERCEPTOR_READ_STRING(ctx, path, 0); | |
5846 | int res = REAL(__lxstat64)(version, path, buf); | |
5847 | if (!res) | |
5848 | COMMON_INTERCEPTOR_WRITE_RANGE(ctx, buf, __sanitizer::struct_stat64_sz); | |
5849 | return res; | |
5850 | } | |
5851 | #define INIT___LXSTAT64 COMMON_INTERCEPT_FUNCTION(__lxstat64) | |
5852 | #else | |
5853 | #define INIT___LXSTAT64 | |
5854 | #endif | |
5855 | ||
5856 | // FIXME: add other *stat interceptor | |
5857 | ||
92a42be0 SL |
5858 | static void InitializeCommonInterceptors() { |
5859 | static u64 metadata_mem[sizeof(MetadataHashMap) / sizeof(u64) + 1]; | |
5860 | interceptor_metadata_map = new((void *)&metadata_mem) MetadataHashMap(); | |
5861 | ||
5862 | INIT_TEXTDOMAIN; | |
5bcae85e SL |
5863 | INIT_STRLEN; |
5864 | INIT_STRNLEN; | |
92a42be0 SL |
5865 | INIT_STRCMP; |
5866 | INIT_STRNCMP; | |
5867 | INIT_STRCASECMP; | |
5868 | INIT_STRNCASECMP; | |
5869 | INIT_STRSTR; | |
5870 | INIT_STRCASESTR; | |
5bcae85e SL |
5871 | INIT_STRCHR; |
5872 | INIT_STRCHRNUL; | |
5873 | INIT_STRRCHR; | |
92a42be0 SL |
5874 | INIT_STRSPN; |
5875 | INIT_STRPBRK; | |
5bcae85e SL |
5876 | INIT_MEMSET; |
5877 | INIT_MEMMOVE; | |
5878 | INIT_MEMCPY; | |
92a42be0 SL |
5879 | INIT_MEMCHR; |
5880 | INIT_MEMCMP; | |
5881 | INIT_MEMRCHR; | |
5bcae85e | 5882 | INIT_MEMMEM; |
92a42be0 SL |
5883 | INIT_READ; |
5884 | INIT_PREAD; | |
5885 | INIT_PREAD64; | |
5886 | INIT_READV; | |
5887 | INIT_PREADV; | |
5888 | INIT_PREADV64; | |
5889 | INIT_WRITE; | |
5890 | INIT_PWRITE; | |
5891 | INIT_PWRITE64; | |
5892 | INIT_WRITEV; | |
5893 | INIT_PWRITEV; | |
5894 | INIT_PWRITEV64; | |
5895 | INIT_PRCTL; | |
5896 | INIT_LOCALTIME_AND_FRIENDS; | |
5897 | INIT_STRPTIME; | |
5898 | INIT_SCANF; | |
5899 | INIT_ISOC99_SCANF; | |
5900 | INIT_PRINTF; | |
5901 | INIT_PRINTF_L; | |
5902 | INIT_ISOC99_PRINTF; | |
5903 | INIT_FREXP; | |
5904 | INIT_FREXPF_FREXPL; | |
5905 | INIT_GETPWNAM_AND_FRIENDS; | |
5906 | INIT_GETPWNAM_R_AND_FRIENDS; | |
5907 | INIT_GETPWENT; | |
5908 | INIT_FGETPWENT; | |
5909 | INIT_GETPWENT_R; | |
5910 | INIT_SETPWENT; | |
5911 | INIT_CLOCK_GETTIME; | |
5912 | INIT_GETITIMER; | |
5913 | INIT_TIME; | |
5914 | INIT_GLOB; | |
5915 | INIT_WAIT; | |
5916 | INIT_WAIT4; | |
5917 | INIT_INET; | |
5918 | INIT_PTHREAD_GETSCHEDPARAM; | |
5919 | INIT_GETADDRINFO; | |
5920 | INIT_GETNAMEINFO; | |
5921 | INIT_GETSOCKNAME; | |
5922 | INIT_GETHOSTBYNAME; | |
5923 | INIT_GETHOSTBYNAME_R; | |
5924 | INIT_GETHOSTBYNAME2_R; | |
5925 | INIT_GETHOSTBYADDR_R; | |
5926 | INIT_GETHOSTENT_R; | |
5927 | INIT_GETSOCKOPT; | |
5928 | INIT_ACCEPT; | |
5929 | INIT_ACCEPT4; | |
5930 | INIT_MODF; | |
5931 | INIT_RECVMSG; | |
5bcae85e | 5932 | INIT_SENDMSG; |
92a42be0 SL |
5933 | INIT_GETPEERNAME; |
5934 | INIT_IOCTL; | |
5935 | INIT_INET_ATON; | |
5936 | INIT_SYSINFO; | |
5937 | INIT_READDIR; | |
5938 | INIT_READDIR64; | |
5939 | INIT_PTRACE; | |
5940 | INIT_SETLOCALE; | |
5941 | INIT_GETCWD; | |
5942 | INIT_GET_CURRENT_DIR_NAME; | |
5943 | INIT_STRTOIMAX; | |
5944 | INIT_MBSTOWCS; | |
5945 | INIT_MBSNRTOWCS; | |
5946 | INIT_WCSTOMBS; | |
5947 | INIT_WCSNRTOMBS; | |
5948 | INIT_WCRTOMB; | |
5949 | INIT_TCGETATTR; | |
5950 | INIT_REALPATH; | |
5951 | INIT_CANONICALIZE_FILE_NAME; | |
5952 | INIT_CONFSTR; | |
5953 | INIT_SCHED_GETAFFINITY; | |
5954 | INIT_SCHED_GETPARAM; | |
5955 | INIT_STRERROR; | |
5956 | INIT_STRERROR_R; | |
5957 | INIT_XPG_STRERROR_R; | |
5958 | INIT_SCANDIR; | |
5959 | INIT_SCANDIR64; | |
5960 | INIT_GETGROUPS; | |
5961 | INIT_POLL; | |
5962 | INIT_PPOLL; | |
5963 | INIT_WORDEXP; | |
5964 | INIT_SIGWAIT; | |
5965 | INIT_SIGWAITINFO; | |
5966 | INIT_SIGTIMEDWAIT; | |
5967 | INIT_SIGSETOPS; | |
5968 | INIT_SIGPENDING; | |
5969 | INIT_SIGPROCMASK; | |
5970 | INIT_BACKTRACE; | |
5971 | INIT__EXIT; | |
5972 | INIT_PTHREAD_MUTEX_LOCK; | |
5973 | INIT_PTHREAD_MUTEX_UNLOCK; | |
5974 | INIT_GETMNTENT; | |
5975 | INIT_GETMNTENT_R; | |
5976 | INIT_STATFS; | |
5977 | INIT_STATFS64; | |
5978 | INIT_STATVFS; | |
5979 | INIT_STATVFS64; | |
5980 | INIT_INITGROUPS; | |
5981 | INIT_ETHER_NTOA_ATON; | |
5982 | INIT_ETHER_HOST; | |
5983 | INIT_ETHER_R; | |
5984 | INIT_SHMCTL; | |
5985 | INIT_RANDOM_R; | |
5986 | INIT_PTHREAD_ATTR_GET; | |
5987 | INIT_PTHREAD_ATTR_GETINHERITSCHED; | |
5988 | INIT_PTHREAD_ATTR_GETAFFINITY_NP; | |
5989 | INIT_PTHREAD_MUTEXATTR_GETPSHARED; | |
5990 | INIT_PTHREAD_MUTEXATTR_GETTYPE; | |
5991 | INIT_PTHREAD_MUTEXATTR_GETPROTOCOL; | |
5992 | INIT_PTHREAD_MUTEXATTR_GETPRIOCEILING; | |
5993 | INIT_PTHREAD_MUTEXATTR_GETROBUST; | |
5994 | INIT_PTHREAD_MUTEXATTR_GETROBUST_NP; | |
5995 | INIT_PTHREAD_RWLOCKATTR_GETPSHARED; | |
5996 | INIT_PTHREAD_RWLOCKATTR_GETKIND_NP; | |
5997 | INIT_PTHREAD_CONDATTR_GETPSHARED; | |
5998 | INIT_PTHREAD_CONDATTR_GETCLOCK; | |
5999 | INIT_PTHREAD_BARRIERATTR_GETPSHARED; | |
6000 | INIT_TMPNAM; | |
6001 | INIT_TMPNAM_R; | |
6002 | INIT_TEMPNAM; | |
6003 | INIT_PTHREAD_SETNAME_NP; | |
6004 | INIT_SINCOS; | |
6005 | INIT_REMQUO; | |
6006 | INIT_LGAMMA; | |
6007 | INIT_LGAMMA_R; | |
6008 | INIT_LGAMMAL_R; | |
6009 | INIT_DRAND48_R; | |
6010 | INIT_RAND_R; | |
6011 | INIT_GETLINE; | |
6012 | INIT_ICONV; | |
6013 | INIT_TIMES; | |
6014 | INIT_TLS_GET_ADDR; | |
6015 | INIT_LISTXATTR; | |
6016 | INIT_GETXATTR; | |
6017 | INIT_GETRESID; | |
6018 | INIT_GETIFADDRS; | |
6019 | INIT_IF_INDEXTONAME; | |
6020 | INIT_CAPGET; | |
6021 | INIT_AEABI_MEM; | |
6022 | INIT___BZERO; | |
6023 | INIT_FTIME; | |
6024 | INIT_XDR; | |
6025 | INIT_TSEARCH; | |
6026 | INIT_LIBIO_INTERNALS; | |
6027 | INIT_FOPEN; | |
6028 | INIT_FOPEN64; | |
1a4d82fc | 6029 | INIT_OPEN_MEMSTREAM; |
92a42be0 SL |
6030 | INIT_OBSTACK; |
6031 | INIT_FFLUSH; | |
6032 | INIT_FCLOSE; | |
6033 | INIT_DLOPEN_DLCLOSE; | |
6034 | INIT_GETPASS; | |
6035 | INIT_TIMERFD; | |
6036 | INIT_MLOCKX; | |
6037 | INIT_FOPENCOOKIE; | |
6038 | INIT_SEM; | |
6039 | INIT_PTHREAD_SETCANCEL; | |
6040 | INIT_MINCORE; | |
6041 | INIT_PROCESS_VM_READV; | |
3157f602 XL |
6042 | INIT_CTERMID; |
6043 | INIT_CTERMID_R; | |
5bcae85e SL |
6044 | INIT_RECV_RECVFROM; |
6045 | INIT_SEND_SENDTO; | |
6046 | INIT_STAT; | |
6047 | INIT_EVENTFD_READ_WRITE; | |
6048 | INIT___XSTAT; | |
6049 | INIT___XSTAT64; | |
6050 | INIT___LXSTAT; | |
6051 | INIT___LXSTAT64; | |
6052 | // FIXME: add other *stat interceptors. | |
92a42be0 | 6053 | } |