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
__poll_chk(struct pollfd * fds,nfds_t fd_count,int timeout,size_t fds_size)33 extern "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
__ppoll_chk(struct pollfd * fds,nfds_t fd_count,const struct timespec * timeout,const sigset_t * mask,size_t fds_size)40 extern "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