1/* 2 * Copyright (C) 2015 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 <poll.h> 31#include "private/libc_logging.h" 32 33extern "C" int __poll_chk(struct pollfd* fds, nfds_t fd_count, int timeout, size_t fds_size) { 34 if (__predict_false(fds_size / sizeof(*fds) < fd_count)) { 35 __fortify_chk_fail("poll: pollfd array smaller than fd count", 0); 36 } 37 return poll(fds, fd_count, timeout); 38} 39 40extern "C" int __ppoll_chk(struct pollfd* fds, nfds_t fd_count, const struct timespec* timeout, const sigset_t* mask, size_t fds_size) { 41 if (__predict_false(fds_size / sizeof(*fds) < fd_count)) { 42 __fortify_chk_fail("ppoll: pollfd array smaller than fd count", 0); 43 } 44 return ppoll(fds, fd_count, timeout, mask); 45} 46