1 /*
2 * OS specific functions
3 * Copyright (c) 2005-2009, Jouni Malinen <j@w1.fi>
4 *
5 * This software may be distributed under the terms of the BSD license.
6 * See README for more details.
7 */
8
9 #ifndef OS_H
10 #define OS_H
11
12 typedef long os_time_t;
13
14 /**
15 * os_sleep - Sleep (sec, usec)
16 * @sec: Number of seconds to sleep
17 * @usec: Number of microseconds to sleep
18 */
19 void os_sleep(os_time_t sec, os_time_t usec);
20
21 struct os_time {
22 os_time_t sec;
23 os_time_t usec;
24 };
25
26 struct os_reltime {
27 os_time_t sec;
28 os_time_t usec;
29 };
30
31 /**
32 * os_get_time - Get current time (sec, usec)
33 * @t: Pointer to buffer for the time
34 * Returns: 0 on success, -1 on failure
35 */
36 int os_get_time(struct os_time *t);
37
38 /**
39 * os_get_reltime - Get relative time (sec, usec)
40 * @t: Pointer to buffer for the time
41 * Returns: 0 on success, -1 on failure
42 */
43 int os_get_reltime(struct os_reltime *t);
44
45
46 /* Helpers for handling struct os_time */
47
os_time_before(struct os_time * a,struct os_time * b)48 static inline int os_time_before(struct os_time *a, struct os_time *b)
49 {
50 return (a->sec < b->sec) ||
51 (a->sec == b->sec && a->usec < b->usec);
52 }
53
54
os_time_sub(struct os_time * a,struct os_time * b,struct os_time * res)55 static inline void os_time_sub(struct os_time *a, struct os_time *b,
56 struct os_time *res)
57 {
58 res->sec = a->sec - b->sec;
59 res->usec = a->usec - b->usec;
60 if (res->usec < 0) {
61 res->sec--;
62 res->usec += 1000000;
63 }
64 }
65
66
67 /* Helpers for handling struct os_reltime */
68
os_reltime_before(struct os_reltime * a,struct os_reltime * b)69 static inline int os_reltime_before(struct os_reltime *a,
70 struct os_reltime *b)
71 {
72 return (a->sec < b->sec) ||
73 (a->sec == b->sec && a->usec < b->usec);
74 }
75
76
os_reltime_sub(struct os_reltime * a,struct os_reltime * b,struct os_reltime * res)77 static inline void os_reltime_sub(struct os_reltime *a, struct os_reltime *b,
78 struct os_reltime *res)
79 {
80 res->sec = a->sec - b->sec;
81 res->usec = a->usec - b->usec;
82 if (res->usec < 0) {
83 res->sec--;
84 res->usec += 1000000;
85 }
86 }
87
88
os_reltime_age(struct os_reltime * start,struct os_reltime * age)89 static inline void os_reltime_age(struct os_reltime *start,
90 struct os_reltime *age)
91 {
92 struct os_reltime now;
93
94 os_get_reltime(&now);
95 os_reltime_sub(&now, start, age);
96 }
97
98
os_reltime_expired(struct os_reltime * now,struct os_reltime * ts,os_time_t timeout_secs)99 static inline int os_reltime_expired(struct os_reltime *now,
100 struct os_reltime *ts,
101 os_time_t timeout_secs)
102 {
103 struct os_reltime age;
104
105 os_reltime_sub(now, ts, &age);
106 return (age.sec > timeout_secs) ||
107 (age.sec == timeout_secs && age.usec > 0);
108 }
109
110
os_reltime_add_ms(struct os_reltime * ts,int ms)111 static inline void os_reltime_add_ms(struct os_reltime *ts, int ms)
112 {
113 ts->usec += ms * 1000;
114 while (ts->usec >= 1000000) {
115 ts->sec++;
116 ts->usec -= 1000000;
117 }
118 while (ts->usec < 0) {
119 ts->sec--;
120 ts->usec += 1000000;
121 }
122 }
123
124
os_reltime_in_ms(struct os_reltime * ts)125 static inline int os_reltime_in_ms(struct os_reltime *ts)
126 {
127 return ts->sec * 1000 + ts->usec / 1000;
128 }
129
130
os_reltime_initialized(struct os_reltime * t)131 static inline int os_reltime_initialized(struct os_reltime *t)
132 {
133 return t->sec != 0 || t->usec != 0;
134 }
135
136
137 /**
138 * os_mktime - Convert broken-down time into seconds since 1970-01-01
139 * @year: Four digit year
140 * @month: Month (1 .. 12)
141 * @day: Day of month (1 .. 31)
142 * @hour: Hour (0 .. 23)
143 * @min: Minute (0 .. 59)
144 * @sec: Second (0 .. 60)
145 * @t: Buffer for returning calendar time representation (seconds since
146 * 1970-01-01 00:00:00)
147 * Returns: 0 on success, -1 on failure
148 *
149 * Note: The result is in seconds from Epoch, i.e., in UTC, not in local time
150 * which is used by POSIX mktime().
151 */
152 int os_mktime(int year, int month, int day, int hour, int min, int sec,
153 os_time_t *t);
154
155 struct os_tm {
156 int sec; /* 0..59 or 60 for leap seconds */
157 int min; /* 0..59 */
158 int hour; /* 0..23 */
159 int day; /* 1..31 */
160 int month; /* 1..12 */
161 int year; /* Four digit year */
162 };
163
164 int os_gmtime(os_time_t t, struct os_tm *tm);
165
166 /**
167 * os_daemonize - Run in the background (detach from the controlling terminal)
168 * @pid_file: File name to write the process ID to or %NULL to skip this
169 * Returns: 0 on success, -1 on failure
170 */
171 int os_daemonize(const char *pid_file);
172
173 /**
174 * os_daemonize_terminate - Stop running in the background (remove pid file)
175 * @pid_file: File name to write the process ID to or %NULL to skip this
176 */
177 void os_daemonize_terminate(const char *pid_file);
178
179 /**
180 * os_get_random - Get cryptographically strong pseudo random data
181 * @buf: Buffer for pseudo random data
182 * @len: Length of the buffer
183 * Returns: 0 on success, -1 on failure
184 */
185 int os_get_random(unsigned char *buf, size_t len);
186
187 /**
188 * os_random - Get pseudo random value (not necessarily very strong)
189 * Returns: Pseudo random value
190 */
191 unsigned long os_random(void);
192
193 /**
194 * os_rel2abs_path - Get an absolute path for a file
195 * @rel_path: Relative path to a file
196 * Returns: Absolute path for the file or %NULL on failure
197 *
198 * This function tries to convert a relative path of a file to an absolute path
199 * in order for the file to be found even if current working directory has
200 * changed. The returned value is allocated and caller is responsible for
201 * freeing it. It is acceptable to just return the same path in an allocated
202 * buffer, e.g., return strdup(rel_path). This function is only used to find
203 * configuration files when os_daemonize() may have changed the current working
204 * directory and relative path would be pointing to a different location.
205 */
206 char * os_rel2abs_path(const char *rel_path);
207
208 /**
209 * os_program_init - Program initialization (called at start)
210 * Returns: 0 on success, -1 on failure
211 *
212 * This function is called when a programs starts. If there are any OS specific
213 * processing that is needed, it can be placed here. It is also acceptable to
214 * just return 0 if not special processing is needed.
215 */
216 int os_program_init(void);
217
218 /**
219 * os_program_deinit - Program deinitialization (called just before exit)
220 *
221 * This function is called just before a program exists. If there are any OS
222 * specific processing, e.g., freeing resourced allocated in os_program_init(),
223 * it should be done here. It is also acceptable for this function to do
224 * nothing.
225 */
226 void os_program_deinit(void);
227
228 /**
229 * os_setenv - Set environment variable
230 * @name: Name of the variable
231 * @value: Value to set to the variable
232 * @overwrite: Whether existing variable should be overwritten
233 * Returns: 0 on success, -1 on error
234 *
235 * This function is only used for wpa_cli action scripts. OS wrapper does not
236 * need to implement this if such functionality is not needed.
237 */
238 int os_setenv(const char *name, const char *value, int overwrite);
239
240 /**
241 * os_unsetenv - Delete environent variable
242 * @name: Name of the variable
243 * Returns: 0 on success, -1 on error
244 *
245 * This function is only used for wpa_cli action scripts. OS wrapper does not
246 * need to implement this if such functionality is not needed.
247 */
248 int os_unsetenv(const char *name);
249
250 /**
251 * os_readfile - Read a file to an allocated memory buffer
252 * @name: Name of the file to read
253 * @len: For returning the length of the allocated buffer
254 * Returns: Pointer to the allocated buffer or %NULL on failure
255 *
256 * This function allocates memory and reads the given file to this buffer. Both
257 * binary and text files can be read with this function. The caller is
258 * responsible for freeing the returned buffer with os_free().
259 */
260 char * os_readfile(const char *name, size_t *len);
261
262 /**
263 * os_file_exists - Check whether the specified file exists
264 * @fname: Path and name of the file
265 * Returns: 1 if the file exists or 0 if not
266 */
267 int os_file_exists(const char *fname);
268
269 /**
270 * os_fdatasync - Sync a file's (for a given stream) state with storage device
271 * @stream: the stream to be flushed
272 * Returns: 0 if the operation succeeded or -1 on failure
273 */
274 int os_fdatasync(FILE *stream);
275
276 /**
277 * os_zalloc - Allocate and zero memory
278 * @size: Number of bytes to allocate
279 * Returns: Pointer to allocated and zeroed memory or %NULL on failure
280 *
281 * Caller is responsible for freeing the returned buffer with os_free().
282 */
283 void * os_zalloc(size_t size);
284
285 /**
286 * os_calloc - Allocate and zero memory for an array
287 * @nmemb: Number of members in the array
288 * @size: Number of bytes in each member
289 * Returns: Pointer to allocated and zeroed memory or %NULL on failure
290 *
291 * This function can be used as a wrapper for os_zalloc(nmemb * size) when an
292 * allocation is used for an array. The main benefit over os_zalloc() is in
293 * having an extra check to catch integer overflows in multiplication.
294 *
295 * Caller is responsible for freeing the returned buffer with os_free().
296 */
os_calloc(size_t nmemb,size_t size)297 static inline void * os_calloc(size_t nmemb, size_t size)
298 {
299 if (size && nmemb > (~(size_t) 0) / size)
300 return NULL;
301 return os_zalloc(nmemb * size);
302 }
303
304
305 /*
306 * The following functions are wrapper for standard ANSI C or POSIX functions.
307 * By default, they are just defined to use the standard function name and no
308 * os_*.c implementation is needed for them. This avoids extra function calls
309 * by allowing the C pre-processor take care of the function name mapping.
310 *
311 * If the target system uses a C library that does not provide these functions,
312 * build_config.h can be used to define the wrappers to use a different
313 * function name. This can be done on function-by-function basis since the
314 * defines here are only used if build_config.h does not define the os_* name.
315 * If needed, os_*.c file can be used to implement the functions that are not
316 * included in the C library on the target system. Alternatively,
317 * OS_NO_C_LIB_DEFINES can be defined to skip all defines here in which case
318 * these functions need to be implemented in os_*.c file for the target system.
319 */
320
321 #ifdef OS_NO_C_LIB_DEFINES
322
323 /**
324 * os_malloc - Allocate dynamic memory
325 * @size: Size of the buffer to allocate
326 * Returns: Allocated buffer or %NULL on failure
327 *
328 * Caller is responsible for freeing the returned buffer with os_free().
329 */
330 void * os_malloc(size_t size);
331
332 /**
333 * os_realloc - Re-allocate dynamic memory
334 * @ptr: Old buffer from os_malloc() or os_realloc()
335 * @size: Size of the new buffer
336 * Returns: Allocated buffer or %NULL on failure
337 *
338 * Caller is responsible for freeing the returned buffer with os_free().
339 * If re-allocation fails, %NULL is returned and the original buffer (ptr) is
340 * not freed and caller is still responsible for freeing it.
341 */
342 void * os_realloc(void *ptr, size_t size);
343
344 /**
345 * os_free - Free dynamic memory
346 * @ptr: Old buffer from os_malloc() or os_realloc(); can be %NULL
347 */
348 void os_free(void *ptr);
349
350 /**
351 * os_memcpy - Copy memory area
352 * @dest: Destination
353 * @src: Source
354 * @n: Number of bytes to copy
355 * Returns: dest
356 *
357 * The memory areas src and dst must not overlap. os_memmove() can be used with
358 * overlapping memory.
359 */
360 void * os_memcpy(void *dest, const void *src, size_t n);
361
362 /**
363 * os_memmove - Copy memory area
364 * @dest: Destination
365 * @src: Source
366 * @n: Number of bytes to copy
367 * Returns: dest
368 *
369 * The memory areas src and dst may overlap.
370 */
371 void * os_memmove(void *dest, const void *src, size_t n);
372
373 /**
374 * os_memset - Fill memory with a constant byte
375 * @s: Memory area to be filled
376 * @c: Constant byte
377 * @n: Number of bytes started from s to fill with c
378 * Returns: s
379 */
380 void * os_memset(void *s, int c, size_t n);
381
382 /**
383 * os_memcmp - Compare memory areas
384 * @s1: First buffer
385 * @s2: Second buffer
386 * @n: Maximum numbers of octets to compare
387 * Returns: An integer less than, equal to, or greater than zero if s1 is
388 * found to be less than, to match, or be greater than s2. Only first n
389 * characters will be compared.
390 */
391 int os_memcmp(const void *s1, const void *s2, size_t n);
392
393 /**
394 * os_strdup - Duplicate a string
395 * @s: Source string
396 * Returns: Allocated buffer with the string copied into it or %NULL on failure
397 *
398 * Caller is responsible for freeing the returned buffer with os_free().
399 */
400 char * os_strdup(const char *s);
401
402 /**
403 * os_strlen - Calculate the length of a string
404 * @s: '\0' terminated string
405 * Returns: Number of characters in s (not counting the '\0' terminator)
406 */
407 size_t os_strlen(const char *s);
408
409 /**
410 * os_strcasecmp - Compare two strings ignoring case
411 * @s1: First string
412 * @s2: Second string
413 * Returns: An integer less than, equal to, or greater than zero if s1 is
414 * found to be less than, to match, or be greatred than s2
415 */
416 int os_strcasecmp(const char *s1, const char *s2);
417
418 /**
419 * os_strncasecmp - Compare two strings ignoring case
420 * @s1: First string
421 * @s2: Second string
422 * @n: Maximum numbers of characters to compare
423 * Returns: An integer less than, equal to, or greater than zero if s1 is
424 * found to be less than, to match, or be greater than s2. Only first n
425 * characters will be compared.
426 */
427 int os_strncasecmp(const char *s1, const char *s2, size_t n);
428
429 /**
430 * os_strchr - Locate the first occurrence of a character in string
431 * @s: String
432 * @c: Character to search for
433 * Returns: Pointer to the matched character or %NULL if not found
434 */
435 char * os_strchr(const char *s, int c);
436
437 /**
438 * os_strrchr - Locate the last occurrence of a character in string
439 * @s: String
440 * @c: Character to search for
441 * Returns: Pointer to the matched character or %NULL if not found
442 */
443 char * os_strrchr(const char *s, int c);
444
445 /**
446 * os_strcmp - Compare two strings
447 * @s1: First string
448 * @s2: Second string
449 * Returns: An integer less than, equal to, or greater than zero if s1 is
450 * found to be less than, to match, or be greatred than s2
451 */
452 int os_strcmp(const char *s1, const char *s2);
453
454 /**
455 * os_strncmp - Compare two strings
456 * @s1: First string
457 * @s2: Second string
458 * @n: Maximum numbers of characters to compare
459 * Returns: An integer less than, equal to, or greater than zero if s1 is
460 * found to be less than, to match, or be greater than s2. Only first n
461 * characters will be compared.
462 */
463 int os_strncmp(const char *s1, const char *s2, size_t n);
464
465 /**
466 * os_strstr - Locate a substring
467 * @haystack: String (haystack) to search from
468 * @needle: Needle to search from haystack
469 * Returns: Pointer to the beginning of the substring or %NULL if not found
470 */
471 char * os_strstr(const char *haystack, const char *needle);
472
473 /**
474 * os_snprintf - Print to a memory buffer
475 * @str: Memory buffer to print into
476 * @size: Maximum length of the str buffer
477 * @format: printf format
478 * Returns: Number of characters printed (not including trailing '\0').
479 *
480 * If the output buffer is truncated, number of characters which would have
481 * been written is returned. Since some C libraries return -1 in such a case,
482 * the caller must be prepared on that value, too, to indicate truncation.
483 *
484 * Note: Some C library implementations of snprintf() may not guarantee null
485 * termination in case the output is truncated. The OS wrapper function of
486 * os_snprintf() should provide this guarantee, i.e., to null terminate the
487 * output buffer if a C library version of the function is used and if that
488 * function does not guarantee null termination.
489 *
490 * If the target system does not include snprintf(), see, e.g.,
491 * http://www.ijs.si/software/snprintf/ for an example of a portable
492 * implementation of snprintf.
493 */
494 int os_snprintf(char *str, size_t size, const char *format, ...);
495
496 #else /* OS_NO_C_LIB_DEFINES */
497
498 #ifdef WPA_TRACE
499 void * os_malloc(size_t size);
500 void * os_realloc(void *ptr, size_t size);
501 void os_free(void *ptr);
502 char * os_strdup(const char *s);
503 #else /* WPA_TRACE */
504 #ifndef os_malloc
505 #define os_malloc(s) malloc((s))
506 #endif
507 #ifndef os_realloc
508 #define os_realloc(p, s) realloc((p), (s))
509 #endif
510 #ifndef os_free
511 #define os_free(p) free((p))
512 #endif
513 #ifndef os_strdup
514 #ifdef _MSC_VER
515 #define os_strdup(s) _strdup(s)
516 #else
517 #define os_strdup(s) strdup(s)
518 #endif
519 #endif
520 #endif /* WPA_TRACE */
521
522 #ifndef os_memcpy
523 #define os_memcpy(d, s, n) memcpy((d), (s), (n))
524 #endif
525 #ifndef os_memmove
526 #define os_memmove(d, s, n) memmove((d), (s), (n))
527 #endif
528 #ifndef os_memset
529 #define os_memset(s, c, n) memset(s, c, n)
530 #endif
531 #ifndef os_memcmp
532 #define os_memcmp(s1, s2, n) memcmp((s1), (s2), (n))
533 #endif
534
535 #ifndef os_strlen
536 #define os_strlen(s) strlen(s)
537 #endif
538 #ifndef os_strcasecmp
539 #ifdef _MSC_VER
540 #define os_strcasecmp(s1, s2) _stricmp((s1), (s2))
541 #else
542 #define os_strcasecmp(s1, s2) strcasecmp((s1), (s2))
543 #endif
544 #endif
545 #ifndef os_strncasecmp
546 #ifdef _MSC_VER
547 #define os_strncasecmp(s1, s2, n) _strnicmp((s1), (s2), (n))
548 #else
549 #define os_strncasecmp(s1, s2, n) strncasecmp((s1), (s2), (n))
550 #endif
551 #endif
552 #ifndef os_strchr
553 #define os_strchr(s, c) strchr((s), (c))
554 #endif
555 #ifndef os_strcmp
556 #define os_strcmp(s1, s2) strcmp((s1), (s2))
557 #endif
558 #ifndef os_strncmp
559 #define os_strncmp(s1, s2, n) strncmp((s1), (s2), (n))
560 #endif
561 #ifndef os_strrchr
562 #define os_strrchr(s, c) strrchr((s), (c))
563 #endif
564 #ifndef os_strstr
565 #define os_strstr(h, n) strstr((h), (n))
566 #endif
567
568 #ifndef os_snprintf
569 #ifdef _MSC_VER
570 #define os_snprintf _snprintf
571 #else
572 #define os_snprintf snprintf
573 #endif
574 #endif
575
576 #endif /* OS_NO_C_LIB_DEFINES */
577
578
os_snprintf_error(size_t size,int res)579 static inline int os_snprintf_error(size_t size, int res)
580 {
581 return res < 0 || (unsigned int) res >= size;
582 }
583
584
os_realloc_array(void * ptr,size_t nmemb,size_t size)585 static inline void * os_realloc_array(void *ptr, size_t nmemb, size_t size)
586 {
587 if (size && nmemb > (~(size_t) 0) / size)
588 return NULL;
589 return os_realloc(ptr, nmemb * size);
590 }
591
592 /**
593 * os_remove_in_array - Remove a member from an array by index
594 * @ptr: Pointer to the array
595 * @nmemb: Current member count of the array
596 * @size: The size per member of the array
597 * @idx: Index of the member to be removed
598 */
os_remove_in_array(void * ptr,size_t nmemb,size_t size,size_t idx)599 static inline void os_remove_in_array(void *ptr, size_t nmemb, size_t size,
600 size_t idx)
601 {
602 if (idx < nmemb - 1)
603 os_memmove(((unsigned char *) ptr) + idx * size,
604 ((unsigned char *) ptr) + (idx + 1) * size,
605 (nmemb - idx - 1) * size);
606 }
607
608 /**
609 * os_strlcpy - Copy a string with size bound and NUL-termination
610 * @dest: Destination
611 * @src: Source
612 * @siz: Size of the target buffer
613 * Returns: Total length of the target string (length of src) (not including
614 * NUL-termination)
615 *
616 * This function matches in behavior with the strlcpy(3) function in OpenBSD.
617 */
618 size_t os_strlcpy(char *dest, const char *src, size_t siz);
619
620 /**
621 * os_memcmp_const - Constant time memory comparison
622 * @a: First buffer to compare
623 * @b: Second buffer to compare
624 * @len: Number of octets to compare
625 * Returns: 0 if buffers are equal, non-zero if not
626 *
627 * This function is meant for comparing passwords or hash values where
628 * difference in execution time could provide external observer information
629 * about the location of the difference in the memory buffers. The return value
630 * does not behave like os_memcmp(), i.e., os_memcmp_const() cannot be used to
631 * sort items into a defined order. Unlike os_memcmp(), execution time of
632 * os_memcmp_const() does not depend on the contents of the compared memory
633 * buffers, but only on the total compared length.
634 */
635 int os_memcmp_const(const void *a, const void *b, size_t len);
636
637
638 /**
639 * os_memdup - Allocate duplicate of passed memory chunk
640 * @src: Source buffer to duplicate
641 * @len: Length of source buffer
642 * Returns: %NULL if allocation failed, copy of src buffer otherwise
643 *
644 * This function allocates a memory block like os_malloc() would, and
645 * copies the given source buffer into it.
646 */
647 void * os_memdup(const void *src, size_t len);
648
649 /**
650 * os_exec - Execute an external program
651 * @program: Path to the program
652 * @arg: Command line argument string
653 * @wait_completion: Whether to wait until the program execution completes
654 * Returns: 0 on success, -1 on error
655 */
656 int os_exec(const char *program, const char *arg, int wait_completion);
657
658
659 #ifdef OS_REJECT_C_LIB_FUNCTIONS
660 #define malloc OS_DO_NOT_USE_malloc
661 #define realloc OS_DO_NOT_USE_realloc
662 #define free OS_DO_NOT_USE_free
663 #define memcpy OS_DO_NOT_USE_memcpy
664 #define memmove OS_DO_NOT_USE_memmove
665 #define memset OS_DO_NOT_USE_memset
666 #define memcmp OS_DO_NOT_USE_memcmp
667 #undef strdup
668 #define strdup OS_DO_NOT_USE_strdup
669 #define strlen OS_DO_NOT_USE_strlen
670 #define strcasecmp OS_DO_NOT_USE_strcasecmp
671 #define strncasecmp OS_DO_NOT_USE_strncasecmp
672 #undef strchr
673 #define strchr OS_DO_NOT_USE_strchr
674 #undef strcmp
675 #define strcmp OS_DO_NOT_USE_strcmp
676 #undef strncmp
677 #define strncmp OS_DO_NOT_USE_strncmp
678 #undef strncpy
679 #define strncpy OS_DO_NOT_USE_strncpy
680 #define strrchr OS_DO_NOT_USE_strrchr
681 #define strstr OS_DO_NOT_USE_strstr
682 #undef snprintf
683 #define snprintf OS_DO_NOT_USE_snprintf
684
685 #define strcpy OS_DO_NOT_USE_strcpy
686 #endif /* OS_REJECT_C_LIB_FUNCTIONS */
687
688
689 #if defined(WPA_TRACE_BFD) && defined(CONFIG_TESTING_OPTIONS)
690 #define TEST_FAIL() testing_test_fail(NULL, false)
691 #define TEST_FAIL_TAG(tag) testing_test_fail(tag, false)
692 int testing_test_fail(const char *tag, bool is_alloc);
693 int testing_set_fail_pattern(bool is_alloc, char *patterns);
694 int testing_get_fail_pattern(bool is_alloc, char *buf, size_t buflen);
695 #else
696 #define TEST_FAIL() 0
697 #define TEST_FAIL_TAG(tag) 0
testing_set_fail_pattern(bool is_alloc,char * patterns)698 static inline int testing_set_fail_pattern(bool is_alloc, char *patterns)
699 {
700 return -1;
701 }
702
testing_get_fail_pattern(bool is_alloc,char * buf,size_t buflen)703 static inline int testing_get_fail_pattern(bool is_alloc, char *buf,
704 size_t buflen)
705 {
706 return -1;
707 }
708 #endif
709
710 #endif /* OS_H */
711