1 /* 2 * Copyright (C) 2013 The Android Open Source Project 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * * Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * * Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in 12 * the documentation and/or other materials provided with the 13 * distribution. 14 * 15 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 16 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 17 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS 18 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE 19 * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, 20 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, 21 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS 22 * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED 23 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, 24 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT 25 * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 26 * SUCH DAMAGE. 27 */ 28 29 #undef _FORTIFY_SOURCE 30 #include <sys/select.h> 31 #include "private/libc_logging.h" 32 33 extern "C" int __FD_ISSET_chk(int fd, fd_set* set, size_t set_size) { 34 if (__predict_false(fd < 0)) { 35 __fortify_chk_fail("FD_ISSET: file descriptor < 0", 0); 36 } 37 if (__predict_false(fd >= FD_SETSIZE)) { 38 __fortify_chk_fail("FD_ISSET: file descriptor >= FD_SETSIZE", 0); 39 } 40 if (__predict_false(set_size < sizeof(fd_set))) { 41 __fortify_chk_fail("FD_ISSET: set is too small", 0); 42 } 43 return FD_ISSET(fd, set); 44 } 45 46 extern "C" void __FD_CLR_chk(int fd, fd_set* set, size_t set_size) { 47 if (__predict_false(fd < 0)) { 48 __fortify_chk_fail("FD_CLR: file descriptor < 0", 0); 49 } 50 if (__predict_false(fd >= FD_SETSIZE)) { 51 __fortify_chk_fail("FD_CLR: file descriptor >= FD_SETSIZE", 0); 52 } 53 if (__predict_false(set_size < sizeof(fd_set))) { 54 __fortify_chk_fail("FD_CLR: set is too small", 0); 55 } 56 FD_CLR(fd, set); 57 } 58 59 extern "C" void __FD_SET_chk(int fd, fd_set* set, size_t set_size) { 60 if (__predict_false(fd < 0)) { 61 __fortify_chk_fail("FD_SET: file descriptor < 0", 0); 62 } 63 if (__predict_false(fd >= FD_SETSIZE)) { 64 __fortify_chk_fail("FD_SET: file descriptor >= FD_SETSIZE", 0); 65 } 66 if (__predict_false(set_size < sizeof(fd_set))) { 67 __fortify_chk_fail("FD_SET: set is too small", 0); 68 } 69 FD_SET(fd, set); 70 } 71
