poll.h (1751B)
1 /* 2 * Copyright (C) 2015-2016 Dimitris Papastamos <sin@2f30.org> 3 * Copyright (C) 2022 q66 <q66@chimera-linux.org> 4 * 5 * Permission to use, copy, modify, and/or distribute this software for any 6 * purpose with or without fee is hereby granted. 7 * 8 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES 9 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF 10 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR 11 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES 12 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN 13 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF 14 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 15 */ 16 17 #ifndef _FORTIFY_POLL_H 18 #define _FORTIFY_POLL_H 19 20 #if !defined(__cplusplus) && !defined(__clang__) 21 __extension__ 22 #endif 23 #include_next <poll.h> 24 25 #if defined(_FORTIFY_SOURCE) && _FORTIFY_SOURCE > 0 && defined(__OPTIMIZE__) && __OPTIMIZE__ > 0 26 #include "fortify-headers.h" 27 28 #ifdef __cplusplus 29 extern "C" { 30 #endif 31 32 #undef poll 33 34 _FORTIFY_FN(poll) int poll(struct pollfd * _FORTIFY_POS0 __f, nfds_t __n, int __s) 35 { 36 __typeof__(sizeof 0) __b = __bos(__f, 0); 37 38 if (__n > __b / sizeof(struct pollfd)) 39 __builtin_trap(); 40 return __orig_poll(__f, __n, __s); 41 } 42 43 #if defined(_GNU_SOURCE) && (!defined(_REDIR_TIME64) || !_REDIR_TIME64) 44 #undef ppoll 45 _FORTIFY_FN(ppoll) int ppoll(struct pollfd * _FORTIFY_POS0 __f, nfds_t __n, 46 const struct timespec *__s, const sigset_t *__m) 47 { 48 __typeof__(sizeof 0) __b = __bos(__f, 0); 49 50 if (__n > __b / sizeof(struct pollfd)) 51 __builtin_trap(); 52 return __orig_ppoll(__f, __n, __s, __m); 53 } 54 #endif 55 56 #ifdef __cplusplus 57 } 58 #endif 59 60 #endif 61 62 #endif