18d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt/* 28d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * OS specific functions 38d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * Copyright (c) 2005-2009, Jouni Malinen <j@w1.fi> 48d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * 5c5ec7f57ead87efa365800228aa0b09a12d9e6c4Dmitry Shmidt * This software may be distributed under the terms of the BSD license. 6c5ec7f57ead87efa365800228aa0b09a12d9e6c4Dmitry Shmidt * See README for more details. 78d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt */ 88d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 98d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#ifndef OS_H 108d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#define OS_H 118d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 128d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidttypedef long os_time_t; 138d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 148d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt/** 158d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * os_sleep - Sleep (sec, usec) 168d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * @sec: Number of seconds to sleep 178d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * @usec: Number of microseconds to sleep 188d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt */ 198d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtvoid os_sleep(os_time_t sec, os_time_t usec); 208d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 218d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtstruct os_time { 228d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_time_t sec; 238d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_time_t usec; 248d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt}; 258d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 26fa3fc4a1ac08ad14272301c7f6f01b362997c3e4Dmitry Shmidtstruct os_reltime { 27fa3fc4a1ac08ad14272301c7f6f01b362997c3e4Dmitry Shmidt os_time_t sec; 28fa3fc4a1ac08ad14272301c7f6f01b362997c3e4Dmitry Shmidt os_time_t usec; 29fa3fc4a1ac08ad14272301c7f6f01b362997c3e4Dmitry Shmidt}; 30fa3fc4a1ac08ad14272301c7f6f01b362997c3e4Dmitry Shmidt 318d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt/** 328d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * os_get_time - Get current time (sec, usec) 338d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * @t: Pointer to buffer for the time 348d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * Returns: 0 on success, -1 on failure 358d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt */ 368d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtint os_get_time(struct os_time *t); 378d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 38fa3fc4a1ac08ad14272301c7f6f01b362997c3e4Dmitry Shmidt/** 39fa3fc4a1ac08ad14272301c7f6f01b362997c3e4Dmitry Shmidt * os_get_reltime - Get relative time (sec, usec) 40fa3fc4a1ac08ad14272301c7f6f01b362997c3e4Dmitry Shmidt * @t: Pointer to buffer for the time 41fa3fc4a1ac08ad14272301c7f6f01b362997c3e4Dmitry Shmidt * Returns: 0 on success, -1 on failure 42fa3fc4a1ac08ad14272301c7f6f01b362997c3e4Dmitry Shmidt */ 43fa3fc4a1ac08ad14272301c7f6f01b362997c3e4Dmitry Shmidtint os_get_reltime(struct os_reltime *t); 44fa3fc4a1ac08ad14272301c7f6f01b362997c3e4Dmitry Shmidt 45fa3fc4a1ac08ad14272301c7f6f01b362997c3e4Dmitry Shmidt 46fa3fc4a1ac08ad14272301c7f6f01b362997c3e4Dmitry Shmidt/* Helpers for handling struct os_time */ 47fa3fc4a1ac08ad14272301c7f6f01b362997c3e4Dmitry Shmidt 48fa3fc4a1ac08ad14272301c7f6f01b362997c3e4Dmitry Shmidtstatic inline int os_time_before(struct os_time *a, struct os_time *b) 49fa3fc4a1ac08ad14272301c7f6f01b362997c3e4Dmitry Shmidt{ 50fa3fc4a1ac08ad14272301c7f6f01b362997c3e4Dmitry Shmidt return (a->sec < b->sec) || 51fa3fc4a1ac08ad14272301c7f6f01b362997c3e4Dmitry Shmidt (a->sec == b->sec && a->usec < b->usec); 52fa3fc4a1ac08ad14272301c7f6f01b362997c3e4Dmitry Shmidt} 53fa3fc4a1ac08ad14272301c7f6f01b362997c3e4Dmitry Shmidt 54fa3fc4a1ac08ad14272301c7f6f01b362997c3e4Dmitry Shmidt 55fa3fc4a1ac08ad14272301c7f6f01b362997c3e4Dmitry Shmidtstatic inline void os_time_sub(struct os_time *a, struct os_time *b, 56fa3fc4a1ac08ad14272301c7f6f01b362997c3e4Dmitry Shmidt struct os_time *res) 57fa3fc4a1ac08ad14272301c7f6f01b362997c3e4Dmitry Shmidt{ 58fa3fc4a1ac08ad14272301c7f6f01b362997c3e4Dmitry Shmidt res->sec = a->sec - b->sec; 59fa3fc4a1ac08ad14272301c7f6f01b362997c3e4Dmitry Shmidt res->usec = a->usec - b->usec; 60fa3fc4a1ac08ad14272301c7f6f01b362997c3e4Dmitry Shmidt if (res->usec < 0) { 61fa3fc4a1ac08ad14272301c7f6f01b362997c3e4Dmitry Shmidt res->sec--; 62fa3fc4a1ac08ad14272301c7f6f01b362997c3e4Dmitry Shmidt res->usec += 1000000; 63fa3fc4a1ac08ad14272301c7f6f01b362997c3e4Dmitry Shmidt } 64fa3fc4a1ac08ad14272301c7f6f01b362997c3e4Dmitry Shmidt} 65fa3fc4a1ac08ad14272301c7f6f01b362997c3e4Dmitry Shmidt 66fa3fc4a1ac08ad14272301c7f6f01b362997c3e4Dmitry Shmidt 67fa3fc4a1ac08ad14272301c7f6f01b362997c3e4Dmitry Shmidt/* Helpers for handling struct os_reltime */ 68fa3fc4a1ac08ad14272301c7f6f01b362997c3e4Dmitry Shmidt 69fa3fc4a1ac08ad14272301c7f6f01b362997c3e4Dmitry Shmidtstatic inline int os_reltime_before(struct os_reltime *a, 70fa3fc4a1ac08ad14272301c7f6f01b362997c3e4Dmitry Shmidt struct os_reltime *b) 71fa3fc4a1ac08ad14272301c7f6f01b362997c3e4Dmitry Shmidt{ 72fa3fc4a1ac08ad14272301c7f6f01b362997c3e4Dmitry Shmidt return (a->sec < b->sec) || 73fa3fc4a1ac08ad14272301c7f6f01b362997c3e4Dmitry Shmidt (a->sec == b->sec && a->usec < b->usec); 74fa3fc4a1ac08ad14272301c7f6f01b362997c3e4Dmitry Shmidt} 758d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 768d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 77fa3fc4a1ac08ad14272301c7f6f01b362997c3e4Dmitry Shmidtstatic inline void os_reltime_sub(struct os_reltime *a, struct os_reltime *b, 78fa3fc4a1ac08ad14272301c7f6f01b362997c3e4Dmitry Shmidt struct os_reltime *res) 79fa3fc4a1ac08ad14272301c7f6f01b362997c3e4Dmitry Shmidt{ 80fa3fc4a1ac08ad14272301c7f6f01b362997c3e4Dmitry Shmidt res->sec = a->sec - b->sec; 81fa3fc4a1ac08ad14272301c7f6f01b362997c3e4Dmitry Shmidt res->usec = a->usec - b->usec; 82fa3fc4a1ac08ad14272301c7f6f01b362997c3e4Dmitry Shmidt if (res->usec < 0) { 83fa3fc4a1ac08ad14272301c7f6f01b362997c3e4Dmitry Shmidt res->sec--; 84fa3fc4a1ac08ad14272301c7f6f01b362997c3e4Dmitry Shmidt res->usec += 1000000; 85fa3fc4a1ac08ad14272301c7f6f01b362997c3e4Dmitry Shmidt } 86fa3fc4a1ac08ad14272301c7f6f01b362997c3e4Dmitry Shmidt} 878d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 888d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 8904f534e89ed127da4077485376f24debc50d80d5Dmitry Shmidtstatic inline void os_reltime_age(struct os_reltime *start, 9004f534e89ed127da4077485376f24debc50d80d5Dmitry Shmidt struct os_reltime *age) 9104f534e89ed127da4077485376f24debc50d80d5Dmitry Shmidt{ 9204f534e89ed127da4077485376f24debc50d80d5Dmitry Shmidt struct os_reltime now; 9304f534e89ed127da4077485376f24debc50d80d5Dmitry Shmidt 9404f534e89ed127da4077485376f24debc50d80d5Dmitry Shmidt os_get_reltime(&now); 9504f534e89ed127da4077485376f24debc50d80d5Dmitry Shmidt os_reltime_sub(&now, start, age); 9604f534e89ed127da4077485376f24debc50d80d5Dmitry Shmidt} 9704f534e89ed127da4077485376f24debc50d80d5Dmitry Shmidt 9804f534e89ed127da4077485376f24debc50d80d5Dmitry Shmidt 9904f534e89ed127da4077485376f24debc50d80d5Dmitry Shmidtstatic inline int os_reltime_expired(struct os_reltime *now, 10004f534e89ed127da4077485376f24debc50d80d5Dmitry Shmidt struct os_reltime *ts, 10104f534e89ed127da4077485376f24debc50d80d5Dmitry Shmidt os_time_t timeout_secs) 10204f534e89ed127da4077485376f24debc50d80d5Dmitry Shmidt{ 10304f534e89ed127da4077485376f24debc50d80d5Dmitry Shmidt struct os_reltime age; 10404f534e89ed127da4077485376f24debc50d80d5Dmitry Shmidt 10504f534e89ed127da4077485376f24debc50d80d5Dmitry Shmidt os_reltime_sub(now, ts, &age); 10604f534e89ed127da4077485376f24debc50d80d5Dmitry Shmidt return (age.sec > timeout_secs) || 10704f534e89ed127da4077485376f24debc50d80d5Dmitry Shmidt (age.sec == timeout_secs && age.usec > 0); 10804f534e89ed127da4077485376f24debc50d80d5Dmitry Shmidt} 10904f534e89ed127da4077485376f24debc50d80d5Dmitry Shmidt 11004f534e89ed127da4077485376f24debc50d80d5Dmitry Shmidt 11104f534e89ed127da4077485376f24debc50d80d5Dmitry Shmidtstatic inline int os_reltime_initialized(struct os_reltime *t) 11204f534e89ed127da4077485376f24debc50d80d5Dmitry Shmidt{ 11304f534e89ed127da4077485376f24debc50d80d5Dmitry Shmidt return t->sec != 0 || t->usec != 0; 11404f534e89ed127da4077485376f24debc50d80d5Dmitry Shmidt} 11504f534e89ed127da4077485376f24debc50d80d5Dmitry Shmidt 11604f534e89ed127da4077485376f24debc50d80d5Dmitry Shmidt 1178d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt/** 1188d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * os_mktime - Convert broken-down time into seconds since 1970-01-01 1198d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * @year: Four digit year 1208d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * @month: Month (1 .. 12) 1218d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * @day: Day of month (1 .. 31) 1228d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * @hour: Hour (0 .. 23) 1238d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * @min: Minute (0 .. 59) 1248d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * @sec: Second (0 .. 60) 1258d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * @t: Buffer for returning calendar time representation (seconds since 1268d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * 1970-01-01 00:00:00) 1278d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * Returns: 0 on success, -1 on failure 1288d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * 1298d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * Note: The result is in seconds from Epoch, i.e., in UTC, not in local time 1308d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * which is used by POSIX mktime(). 1318d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt */ 1328d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtint os_mktime(int year, int month, int day, int hour, int min, int sec, 1338d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_time_t *t); 1348d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 1351f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidtstruct os_tm { 1361f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt int sec; /* 0..59 or 60 for leap seconds */ 1371f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt int min; /* 0..59 */ 1381f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt int hour; /* 0..23 */ 1391f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt int day; /* 1..31 */ 1401f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt int month; /* 1..12 */ 1411f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt int year; /* Four digit year */ 1421f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt}; 1431f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt 1441f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidtint os_gmtime(os_time_t t, struct os_tm *tm); 1458d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 1468d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt/** 1478d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * os_daemonize - Run in the background (detach from the controlling terminal) 1488d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * @pid_file: File name to write the process ID to or %NULL to skip this 1498d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * Returns: 0 on success, -1 on failure 1508d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt */ 1518d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtint os_daemonize(const char *pid_file); 1528d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 1538d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt/** 1548d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * os_daemonize_terminate - Stop running in the background (remove pid file) 1558d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * @pid_file: File name to write the process ID to or %NULL to skip this 1568d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt */ 1578d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtvoid os_daemonize_terminate(const char *pid_file); 1588d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 1598d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt/** 1608d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * os_get_random - Get cryptographically strong pseudo random data 1618d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * @buf: Buffer for pseudo random data 1628d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * @len: Length of the buffer 1638d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * Returns: 0 on success, -1 on failure 1648d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt */ 1658d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtint os_get_random(unsigned char *buf, size_t len); 1668d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 1678d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt/** 1688d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * os_random - Get pseudo random value (not necessarily very strong) 1698d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * Returns: Pseudo random value 1708d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt */ 1718d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtunsigned long os_random(void); 1728d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 1738d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt/** 1748d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * os_rel2abs_path - Get an absolute path for a file 1758d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * @rel_path: Relative path to a file 1768d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * Returns: Absolute path for the file or %NULL on failure 1778d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * 1788d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * This function tries to convert a relative path of a file to an absolute path 1798d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * in order for the file to be found even if current working directory has 1808d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * changed. The returned value is allocated and caller is responsible for 1818d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * freeing it. It is acceptable to just return the same path in an allocated 1828d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * buffer, e.g., return strdup(rel_path). This function is only used to find 1838d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * configuration files when os_daemonize() may have changed the current working 1848d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * directory and relative path would be pointing to a different location. 1858d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt */ 1868d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtchar * os_rel2abs_path(const char *rel_path); 1878d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 1888d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt/** 1898d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * os_program_init - Program initialization (called at start) 1908d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * Returns: 0 on success, -1 on failure 1918d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * 1928d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * This function is called when a programs starts. If there are any OS specific 1938d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * processing that is needed, it can be placed here. It is also acceptable to 1948d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * just return 0 if not special processing is needed. 1958d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt */ 1968d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtint os_program_init(void); 1978d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 1988d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt/** 1998d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * os_program_deinit - Program deinitialization (called just before exit) 2008d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * 2018d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * This function is called just before a program exists. If there are any OS 2028d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * specific processing, e.g., freeing resourced allocated in os_program_init(), 2038d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * it should be done here. It is also acceptable for this function to do 2048d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * nothing. 2058d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt */ 2068d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtvoid os_program_deinit(void); 2078d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 2088d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt/** 2098d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * os_setenv - Set environment variable 2108d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * @name: Name of the variable 2118d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * @value: Value to set to the variable 2128d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * @overwrite: Whether existing variable should be overwritten 2138d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * Returns: 0 on success, -1 on error 2148d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * 2158d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * This function is only used for wpa_cli action scripts. OS wrapper does not 2168d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * need to implement this if such functionality is not needed. 2178d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt */ 2188d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtint os_setenv(const char *name, const char *value, int overwrite); 2198d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 2208d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt/** 2218d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * os_unsetenv - Delete environent variable 2228d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * @name: Name of the variable 2238d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * Returns: 0 on success, -1 on error 2248d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * 2258d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * This function is only used for wpa_cli action scripts. OS wrapper does not 2268d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * need to implement this if such functionality is not needed. 2278d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt */ 2288d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtint os_unsetenv(const char *name); 2298d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 2308d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt/** 2318d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * os_readfile - Read a file to an allocated memory buffer 2328d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * @name: Name of the file to read 2338d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * @len: For returning the length of the allocated buffer 2348d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * Returns: Pointer to the allocated buffer or %NULL on failure 2358d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * 2368d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * This function allocates memory and reads the given file to this buffer. Both 2378d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * binary and text files can be read with this function. The caller is 2388d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * responsible for freeing the returned buffer with os_free(). 2398d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt */ 2408d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtchar * os_readfile(const char *name, size_t *len); 2418d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 2428d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt/** 243d5dc24eb5fbf0e0feff214c0260cae845721d5feDmitry Shmidt * os_file_exists - Check whether the specified file exists 244d5dc24eb5fbf0e0feff214c0260cae845721d5feDmitry Shmidt * @fname: Path and name of the file 245d5dc24eb5fbf0e0feff214c0260cae845721d5feDmitry Shmidt * Returns: 1 if the file exists or 0 if not 246d5dc24eb5fbf0e0feff214c0260cae845721d5feDmitry Shmidt */ 247d5dc24eb5fbf0e0feff214c0260cae845721d5feDmitry Shmidtint os_file_exists(const char *fname); 248d5dc24eb5fbf0e0feff214c0260cae845721d5feDmitry Shmidt 249d5dc24eb5fbf0e0feff214c0260cae845721d5feDmitry Shmidt/** 250d80a401aed31d06f261efd19223cf55d1a2a8228Dmitry Shmidt * os_fdatasync - Sync a file's (for a given stream) state with storage device 251447c7ff83da0d89ffa70c378be2a4a58f9b14d3bMitchell Wills * @stream: the stream to be flushed 252447c7ff83da0d89ffa70c378be2a4a58f9b14d3bMitchell Wills * Returns: 0 if the operation succeeded or -1 on failure 253447c7ff83da0d89ffa70c378be2a4a58f9b14d3bMitchell Wills */ 254d80a401aed31d06f261efd19223cf55d1a2a8228Dmitry Shmidtint os_fdatasync(FILE *stream); 255447c7ff83da0d89ffa70c378be2a4a58f9b14d3bMitchell Wills 256447c7ff83da0d89ffa70c378be2a4a58f9b14d3bMitchell Wills/** 2578d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * os_zalloc - Allocate and zero memory 2588d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * @size: Number of bytes to allocate 2598d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * Returns: Pointer to allocated and zeroed memory or %NULL on failure 2608d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * 2618d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * Caller is responsible for freeing the returned buffer with os_free(). 2628d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt */ 2638d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtvoid * os_zalloc(size_t size); 2648d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 26561d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt/** 26661d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt * os_calloc - Allocate and zero memory for an array 26761d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt * @nmemb: Number of members in the array 26861d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt * @size: Number of bytes in each member 26961d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt * Returns: Pointer to allocated and zeroed memory or %NULL on failure 27061d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt * 27161d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt * This function can be used as a wrapper for os_zalloc(nmemb * size) when an 27261d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt * allocation is used for an array. The main benefit over os_zalloc() is in 27361d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt * having an extra check to catch integer overflows in multiplication. 27461d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt * 27561d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt * Caller is responsible for freeing the returned buffer with os_free(). 27661d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt */ 27761d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidtstatic inline void * os_calloc(size_t nmemb, size_t size) 27861d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt{ 27961d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt if (size && nmemb > (~(size_t) 0) / size) 28061d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt return NULL; 28161d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt return os_zalloc(nmemb * size); 28261d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt} 28361d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt 2848d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 2858d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt/* 2868d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * The following functions are wrapper for standard ANSI C or POSIX functions. 2878d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * By default, they are just defined to use the standard function name and no 2888d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * os_*.c implementation is needed for them. This avoids extra function calls 2898d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * by allowing the C pre-processor take care of the function name mapping. 2908d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * 2918d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * If the target system uses a C library that does not provide these functions, 2928d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * build_config.h can be used to define the wrappers to use a different 2938d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * function name. This can be done on function-by-function basis since the 2948d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * defines here are only used if build_config.h does not define the os_* name. 2958d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * If needed, os_*.c file can be used to implement the functions that are not 2968d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * included in the C library on the target system. Alternatively, 2978d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * OS_NO_C_LIB_DEFINES can be defined to skip all defines here in which case 2988d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * these functions need to be implemented in os_*.c file for the target system. 2998d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt */ 3008d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 3018d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#ifdef OS_NO_C_LIB_DEFINES 3028d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 3038d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt/** 3048d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * os_malloc - Allocate dynamic memory 3058d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * @size: Size of the buffer to allocate 3068d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * Returns: Allocated buffer or %NULL on failure 3078d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * 3088d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * Caller is responsible for freeing the returned buffer with os_free(). 3098d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt */ 3108d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtvoid * os_malloc(size_t size); 3118d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 3128d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt/** 3138d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * os_realloc - Re-allocate dynamic memory 3148d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * @ptr: Old buffer from os_malloc() or os_realloc() 3158d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * @size: Size of the new buffer 3168d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * Returns: Allocated buffer or %NULL on failure 3178d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * 3188d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * Caller is responsible for freeing the returned buffer with os_free(). 3198d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * If re-allocation fails, %NULL is returned and the original buffer (ptr) is 3208d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * not freed and caller is still responsible for freeing it. 3218d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt */ 3228d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtvoid * os_realloc(void *ptr, size_t size); 3238d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 3248d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt/** 3258d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * os_free - Free dynamic memory 3268d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * @ptr: Old buffer from os_malloc() or os_realloc(); can be %NULL 3278d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt */ 3288d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtvoid os_free(void *ptr); 3298d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 3308d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt/** 3318d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * os_memcpy - Copy memory area 3328d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * @dest: Destination 3338d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * @src: Source 3348d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * @n: Number of bytes to copy 3358d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * Returns: dest 3368d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * 3378d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * The memory areas src and dst must not overlap. os_memmove() can be used with 3388d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * overlapping memory. 3398d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt */ 3408d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtvoid * os_memcpy(void *dest, const void *src, size_t n); 3418d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 3428d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt/** 3438d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * os_memmove - Copy memory area 3448d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * @dest: Destination 3458d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * @src: Source 3468d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * @n: Number of bytes to copy 3478d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * Returns: dest 3488d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * 3498d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * The memory areas src and dst may overlap. 3508d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt */ 3518d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtvoid * os_memmove(void *dest, const void *src, size_t n); 3528d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 3538d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt/** 3548d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * os_memset - Fill memory with a constant byte 3558d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * @s: Memory area to be filled 3568d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * @c: Constant byte 3578d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * @n: Number of bytes started from s to fill with c 3588d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * Returns: s 3598d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt */ 3608d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtvoid * os_memset(void *s, int c, size_t n); 3618d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 3628d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt/** 3638d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * os_memcmp - Compare memory areas 3648d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * @s1: First buffer 3658d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * @s2: Second buffer 3668d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * @n: Maximum numbers of octets to compare 3678d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * Returns: An integer less than, equal to, or greater than zero if s1 is 3688d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * found to be less than, to match, or be greater than s2. Only first n 3698d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * characters will be compared. 3708d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt */ 3718d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtint os_memcmp(const void *s1, const void *s2, size_t n); 3728d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 3738d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt/** 3748d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * os_strdup - Duplicate a string 3758d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * @s: Source string 3768d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * Returns: Allocated buffer with the string copied into it or %NULL on failure 3778d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * 3788d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * Caller is responsible for freeing the returned buffer with os_free(). 3798d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt */ 3808d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtchar * os_strdup(const char *s); 3818d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 3828d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt/** 3838d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * os_strlen - Calculate the length of a string 3848d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * @s: '\0' terminated string 3858d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * Returns: Number of characters in s (not counting the '\0' terminator) 3868d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt */ 3878d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtsize_t os_strlen(const char *s); 3888d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 3898d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt/** 3908d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * os_strcasecmp - Compare two strings ignoring case 3918d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * @s1: First string 3928d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * @s2: Second string 3938d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * Returns: An integer less than, equal to, or greater than zero if s1 is 3948d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * found to be less than, to match, or be greatred than s2 3958d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt */ 3968d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtint os_strcasecmp(const char *s1, const char *s2); 3978d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 3988d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt/** 3998d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * os_strncasecmp - Compare two strings ignoring case 4008d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * @s1: First string 4018d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * @s2: Second string 4028d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * @n: Maximum numbers of characters to compare 4038d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * Returns: An integer less than, equal to, or greater than zero if s1 is 4048d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * found to be less than, to match, or be greater than s2. Only first n 4058d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * characters will be compared. 4068d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt */ 4078d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtint os_strncasecmp(const char *s1, const char *s2, size_t n); 4088d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 4098d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt/** 4108d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * os_strchr - Locate the first occurrence of a character in string 4118d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * @s: String 4128d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * @c: Character to search for 4138d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * Returns: Pointer to the matched character or %NULL if not found 4148d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt */ 4158d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtchar * os_strchr(const char *s, int c); 4168d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 4178d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt/** 4188d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * os_strrchr - Locate the last occurrence of a character in string 4198d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * @s: String 4208d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * @c: Character to search for 4218d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * Returns: Pointer to the matched character or %NULL if not found 4228d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt */ 4238d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtchar * os_strrchr(const char *s, int c); 4248d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 4258d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt/** 4268d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * os_strcmp - Compare two strings 4278d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * @s1: First string 4288d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * @s2: Second string 4298d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * Returns: An integer less than, equal to, or greater than zero if s1 is 4308d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * found to be less than, to match, or be greatred than s2 4318d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt */ 4328d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtint os_strcmp(const char *s1, const char *s2); 4338d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 4348d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt/** 4358d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * os_strncmp - Compare two strings 4368d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * @s1: First string 4378d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * @s2: Second string 4388d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * @n: Maximum numbers of characters to compare 4398d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * Returns: An integer less than, equal to, or greater than zero if s1 is 4408d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * found to be less than, to match, or be greater than s2. Only first n 4418d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * characters will be compared. 4428d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt */ 4438d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtint os_strncmp(const char *s1, const char *s2, size_t n); 4448d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 4458d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt/** 4468d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * os_strstr - Locate a substring 4478d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * @haystack: String (haystack) to search from 4488d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * @needle: Needle to search from haystack 4498d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * Returns: Pointer to the beginning of the substring or %NULL if not found 4508d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt */ 4518d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtchar * os_strstr(const char *haystack, const char *needle); 4528d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 4538d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt/** 4548d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * os_snprintf - Print to a memory buffer 4558d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * @str: Memory buffer to print into 4568d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * @size: Maximum length of the str buffer 4578d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * @format: printf format 4588d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * Returns: Number of characters printed (not including trailing '\0'). 4598d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * 4608d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * If the output buffer is truncated, number of characters which would have 4618d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * been written is returned. Since some C libraries return -1 in such a case, 4628d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * the caller must be prepared on that value, too, to indicate truncation. 4638d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * 4648d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * Note: Some C library implementations of snprintf() may not guarantee null 4658d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * termination in case the output is truncated. The OS wrapper function of 4668d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * os_snprintf() should provide this guarantee, i.e., to null terminate the 4678d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * output buffer if a C library version of the function is used and if that 4688d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * function does not guarantee null termination. 4698d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * 4708d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * If the target system does not include snprintf(), see, e.g., 4718d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * http://www.ijs.si/software/snprintf/ for an example of a portable 4728d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * implementation of snprintf. 4738d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt */ 4748d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtint os_snprintf(char *str, size_t size, const char *format, ...); 4758d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 4768d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#else /* OS_NO_C_LIB_DEFINES */ 4778d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 4788d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#ifdef WPA_TRACE 4798d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtvoid * os_malloc(size_t size); 4808d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtvoid * os_realloc(void *ptr, size_t size); 4818d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtvoid os_free(void *ptr); 4828d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtchar * os_strdup(const char *s); 4838d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#else /* WPA_TRACE */ 4848d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#ifndef os_malloc 4858d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#define os_malloc(s) malloc((s)) 4868d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#endif 4878d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#ifndef os_realloc 4888d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#define os_realloc(p, s) realloc((p), (s)) 4898d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#endif 4908d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#ifndef os_free 4918d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#define os_free(p) free((p)) 4928d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#endif 4938d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#ifndef os_strdup 4948d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#ifdef _MSC_VER 4958d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#define os_strdup(s) _strdup(s) 4968d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#else 4978d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#define os_strdup(s) strdup(s) 4988d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#endif 4998d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#endif 5008d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#endif /* WPA_TRACE */ 5018d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 5028d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#ifndef os_memcpy 5038d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#define os_memcpy(d, s, n) memcpy((d), (s), (n)) 5048d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#endif 5058d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#ifndef os_memmove 5068d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#define os_memmove(d, s, n) memmove((d), (s), (n)) 5078d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#endif 5088d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#ifndef os_memset 5098d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#define os_memset(s, c, n) memset(s, c, n) 5108d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#endif 5118d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#ifndef os_memcmp 5128d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#define os_memcmp(s1, s2, n) memcmp((s1), (s2), (n)) 5138d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#endif 5148d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 5158d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#ifndef os_strlen 5168d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#define os_strlen(s) strlen(s) 5178d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#endif 5188d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#ifndef os_strcasecmp 5198d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#ifdef _MSC_VER 5208d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#define os_strcasecmp(s1, s2) _stricmp((s1), (s2)) 5218d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#else 5228d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#define os_strcasecmp(s1, s2) strcasecmp((s1), (s2)) 5238d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#endif 5248d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#endif 5258d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#ifndef os_strncasecmp 5268d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#ifdef _MSC_VER 5278d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#define os_strncasecmp(s1, s2, n) _strnicmp((s1), (s2), (n)) 5288d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#else 5298d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#define os_strncasecmp(s1, s2, n) strncasecmp((s1), (s2), (n)) 5308d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#endif 5318d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#endif 5328d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#ifndef os_strchr 5338d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#define os_strchr(s, c) strchr((s), (c)) 5348d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#endif 5358d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#ifndef os_strcmp 5368d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#define os_strcmp(s1, s2) strcmp((s1), (s2)) 5378d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#endif 5388d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#ifndef os_strncmp 5398d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#define os_strncmp(s1, s2, n) strncmp((s1), (s2), (n)) 5408d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#endif 5418d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#ifndef os_strrchr 5428d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#define os_strrchr(s, c) strrchr((s), (c)) 5438d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#endif 5448d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#ifndef os_strstr 5458d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#define os_strstr(h, n) strstr((h), (n)) 5468d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#endif 5478d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 5488d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#ifndef os_snprintf 5498d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#ifdef _MSC_VER 5508d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#define os_snprintf _snprintf 5518d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#else 5528d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#define os_snprintf snprintf 5538d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#endif 5548d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#endif 5558d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 5568d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#endif /* OS_NO_C_LIB_DEFINES */ 5578d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 5588d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 559fb45fd5cfed8bdccd0859c7fc05449fc187e2d06Dmitry Shmidtstatic inline int os_snprintf_error(size_t size, int res) 560fb45fd5cfed8bdccd0859c7fc05449fc187e2d06Dmitry Shmidt{ 561fb45fd5cfed8bdccd0859c7fc05449fc187e2d06Dmitry Shmidt return res < 0 || (unsigned int) res >= size; 562fb45fd5cfed8bdccd0859c7fc05449fc187e2d06Dmitry Shmidt} 563fb45fd5cfed8bdccd0859c7fc05449fc187e2d06Dmitry Shmidt 564fb45fd5cfed8bdccd0859c7fc05449fc187e2d06Dmitry Shmidt 56561d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidtstatic inline void * os_realloc_array(void *ptr, size_t nmemb, size_t size) 56661d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt{ 56761d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt if (size && nmemb > (~(size_t) 0) / size) 56861d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt return NULL; 56961d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt return os_realloc(ptr, nmemb * size); 57061d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt} 57161d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt 572f21452aea786ac056eb01f1cbba4f553bd502747Dmitry Shmidt/** 573f21452aea786ac056eb01f1cbba4f553bd502747Dmitry Shmidt * os_remove_in_array - Remove a member from an array by index 574f21452aea786ac056eb01f1cbba4f553bd502747Dmitry Shmidt * @ptr: Pointer to the array 575f21452aea786ac056eb01f1cbba4f553bd502747Dmitry Shmidt * @nmemb: Current member count of the array 576f21452aea786ac056eb01f1cbba4f553bd502747Dmitry Shmidt * @size: The size per member of the array 577f21452aea786ac056eb01f1cbba4f553bd502747Dmitry Shmidt * @idx: Index of the member to be removed 578f21452aea786ac056eb01f1cbba4f553bd502747Dmitry Shmidt */ 579f21452aea786ac056eb01f1cbba4f553bd502747Dmitry Shmidtstatic inline void os_remove_in_array(void *ptr, size_t nmemb, size_t size, 580f21452aea786ac056eb01f1cbba4f553bd502747Dmitry Shmidt size_t idx) 581f21452aea786ac056eb01f1cbba4f553bd502747Dmitry Shmidt{ 582f21452aea786ac056eb01f1cbba4f553bd502747Dmitry Shmidt if (idx < nmemb - 1) 583f21452aea786ac056eb01f1cbba4f553bd502747Dmitry Shmidt os_memmove(((unsigned char *) ptr) + idx * size, 584f21452aea786ac056eb01f1cbba4f553bd502747Dmitry Shmidt ((unsigned char *) ptr) + (idx + 1) * size, 585f21452aea786ac056eb01f1cbba4f553bd502747Dmitry Shmidt (nmemb - idx - 1) * size); 586f21452aea786ac056eb01f1cbba4f553bd502747Dmitry Shmidt} 58761d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt 5888d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt/** 5898d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * os_strlcpy - Copy a string with size bound and NUL-termination 5908d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * @dest: Destination 5918d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * @src: Source 5928d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * @siz: Size of the target buffer 5938d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * Returns: Total length of the target string (length of src) (not including 5948d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * NUL-termination) 5958d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * 5968d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * This function matches in behavior with the strlcpy(3) function in OpenBSD. 5978d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt */ 5988d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtsize_t os_strlcpy(char *dest, const char *src, size_t siz); 5998d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 600c28170251eb54dbf64a9074a07fee377587425b2Dmitry Shmidt/** 601c28170251eb54dbf64a9074a07fee377587425b2Dmitry Shmidt * os_memcmp_const - Constant time memory comparison 602c28170251eb54dbf64a9074a07fee377587425b2Dmitry Shmidt * @a: First buffer to compare 603c28170251eb54dbf64a9074a07fee377587425b2Dmitry Shmidt * @b: Second buffer to compare 604c28170251eb54dbf64a9074a07fee377587425b2Dmitry Shmidt * @len: Number of octets to compare 605c28170251eb54dbf64a9074a07fee377587425b2Dmitry Shmidt * Returns: 0 if buffers are equal, non-zero if not 606c28170251eb54dbf64a9074a07fee377587425b2Dmitry Shmidt * 607c28170251eb54dbf64a9074a07fee377587425b2Dmitry Shmidt * This function is meant for comparing passwords or hash values where 608c28170251eb54dbf64a9074a07fee377587425b2Dmitry Shmidt * difference in execution time could provide external observer information 609c28170251eb54dbf64a9074a07fee377587425b2Dmitry Shmidt * about the location of the difference in the memory buffers. The return value 610c28170251eb54dbf64a9074a07fee377587425b2Dmitry Shmidt * does not behave like os_memcmp(), i.e., os_memcmp_const() cannot be used to 611c28170251eb54dbf64a9074a07fee377587425b2Dmitry Shmidt * sort items into a defined order. Unlike os_memcmp(), execution time of 612c28170251eb54dbf64a9074a07fee377587425b2Dmitry Shmidt * os_memcmp_const() does not depend on the contents of the compared memory 613c28170251eb54dbf64a9074a07fee377587425b2Dmitry Shmidt * buffers, but only on the total compared length. 614c28170251eb54dbf64a9074a07fee377587425b2Dmitry Shmidt */ 615c28170251eb54dbf64a9074a07fee377587425b2Dmitry Shmidtint os_memcmp_const(const void *a, const void *b, size_t len); 616c28170251eb54dbf64a9074a07fee377587425b2Dmitry Shmidt 617772e12cfed81754a9fd890be7bc77bc602a549b5Jouni Malinen/** 618772e12cfed81754a9fd890be7bc77bc602a549b5Jouni Malinen * os_exec - Execute an external program 619772e12cfed81754a9fd890be7bc77bc602a549b5Jouni Malinen * @program: Path to the program 620772e12cfed81754a9fd890be7bc77bc602a549b5Jouni Malinen * @arg: Command line argument string 621772e12cfed81754a9fd890be7bc77bc602a549b5Jouni Malinen * @wait_completion: Whether to wait until the program execution completes 622772e12cfed81754a9fd890be7bc77bc602a549b5Jouni Malinen * Returns: 0 on success, -1 on error 623772e12cfed81754a9fd890be7bc77bc602a549b5Jouni Malinen */ 624772e12cfed81754a9fd890be7bc77bc602a549b5Jouni Malinenint os_exec(const char *program, const char *arg, int wait_completion); 625772e12cfed81754a9fd890be7bc77bc602a549b5Jouni Malinen 6268d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 6278d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#ifdef OS_REJECT_C_LIB_FUNCTIONS 6288d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#define malloc OS_DO_NOT_USE_malloc 6298d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#define realloc OS_DO_NOT_USE_realloc 6308d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#define free OS_DO_NOT_USE_free 6318d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#define memcpy OS_DO_NOT_USE_memcpy 6328d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#define memmove OS_DO_NOT_USE_memmove 6338d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#define memset OS_DO_NOT_USE_memset 6348d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#define memcmp OS_DO_NOT_USE_memcmp 6358d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#undef strdup 6368d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#define strdup OS_DO_NOT_USE_strdup 6378d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#define strlen OS_DO_NOT_USE_strlen 6388d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#define strcasecmp OS_DO_NOT_USE_strcasecmp 6398d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#define strncasecmp OS_DO_NOT_USE_strncasecmp 6408d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#undef strchr 6418d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#define strchr OS_DO_NOT_USE_strchr 6428d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#undef strcmp 6438d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#define strcmp OS_DO_NOT_USE_strcmp 6448d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#undef strncmp 6458d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#define strncmp OS_DO_NOT_USE_strncmp 6468d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#undef strncpy 6478d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#define strncpy OS_DO_NOT_USE_strncpy 6488d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#define strrchr OS_DO_NOT_USE_strrchr 6498d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#define strstr OS_DO_NOT_USE_strstr 6508d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#undef snprintf 6518d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#define snprintf OS_DO_NOT_USE_snprintf 6528d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 6538d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#define strcpy OS_DO_NOT_USE_strcpy 6548d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#endif /* OS_REJECT_C_LIB_FUNCTIONS */ 6558d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 656d80a401aed31d06f261efd19223cf55d1a2a8228Dmitry Shmidt 657d80a401aed31d06f261efd19223cf55d1a2a8228Dmitry Shmidt#if defined(WPA_TRACE_BFD) && defined(CONFIG_TESTING_OPTIONS) 658d80a401aed31d06f261efd19223cf55d1a2a8228Dmitry Shmidt#define TEST_FAIL() testing_test_fail() 659d80a401aed31d06f261efd19223cf55d1a2a8228Dmitry Shmidtint testing_test_fail(void); 660d80a401aed31d06f261efd19223cf55d1a2a8228Dmitry Shmidt#else 661d80a401aed31d06f261efd19223cf55d1a2a8228Dmitry Shmidt#define TEST_FAIL() 0 662d80a401aed31d06f261efd19223cf55d1a2a8228Dmitry Shmidt#endif 663d80a401aed31d06f261efd19223cf55d1a2a8228Dmitry Shmidt 6648d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#endif /* OS_H */ 665