select.h (1704B)
1 /* 2 * Copyright (C) 2015-2016 Dimitris Papastamos <sin@2f30.org> 3 * 4 * Permission to use, copy, modify, and/or distribute this software for any 5 * purpose with or without fee is hereby granted. 6 * 7 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES 8 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF 9 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR 10 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES 11 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN 12 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF 13 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 14 */ 15 16 #ifndef _FORTIFY_SYS_SELECT_H 17 #define _FORTIFY_SYS_SELECT_H 18 19 #ifndef __cplusplus 20 __extension__ 21 #endif 22 #include_next <sys/select.h> 23 24 #if defined(_FORTIFY_SOURCE) && _FORTIFY_SOURCE > 0 && defined(__OPTIMIZE__) && __OPTIMIZE__ > 0 25 26 #ifdef __cplusplus 27 extern "C" { 28 #endif 29 30 static __inline__ __attribute__((__always_inline__,__gnu_inline__,__artificial__)) 31 void __fortify_FD_CLR(int __f, fd_set *__s) 32 { 33 size_t __b = __builtin_object_size(__s, 0); 34 35 if (__f < 0 || __f >= FD_SETSIZE || __b < sizeof(fd_set)) 36 __builtin_trap(); 37 FD_CLR(__f, __s); 38 } 39 40 static __inline__ __attribute__((__always_inline__,__gnu_inline__,__artificial__)) 41 void __fortify_FD_SET(int __f, fd_set *__s) 42 { 43 size_t __b = __builtin_object_size(__s, 0); 44 45 if (__f < 0 || __f >= FD_SETSIZE || __b < sizeof(fd_set)) 46 __builtin_trap(); 47 FD_SET(__f, __s); 48 } 49 50 #undef FD_CLR 51 #define FD_CLR(fd, set) __fortify_FD_CLR(fd, set) 52 #undef FD_SET 53 #define FD_SET(fd, set) __fortify_FD_SET(fd, set) 54 55 #ifdef __cplusplus 56 } 57 #endif 58 59 #endif 60 61 #endif