1/* Checking macros for poll functions.
2 Copyright (C) 2012-2022 Free Software Foundation, Inc.
3 This file is part of the GNU C Library.
4
5 The GNU C Library is free software; you can redistribute it and/or
6 modify it under the terms of the GNU Lesser General Public
7 License as published by the Free Software Foundation; either
8 version 2.1 of the License, or (at your option) any later version.
9
10 The GNU C Library is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 Lesser General Public License for more details.
14
15 You should have received a copy of the GNU Lesser General Public
16 License along with the GNU C Library; if not, see
17 <https://www.gnu.org/licenses/>. */
18
19#ifndef _SYS_POLL_H
20# error "Never include <bits/poll2.h> directly; use <sys/poll.h> instead."
21#endif
22
23
24__BEGIN_DECLS
25
26extern int __REDIRECT (__poll_alias, (struct pollfd *__fds, nfds_t __nfds,
27 int __timeout), poll);
28extern int __poll_chk (struct pollfd *__fds, nfds_t __nfds, int __timeout,
29 __SIZE_TYPE__ __fdslen)
30 __attr_access ((__write_only__, 1, 2));
31extern int __REDIRECT (__poll_chk_warn, (struct pollfd *__fds, nfds_t __nfds,
32 int __timeout, __SIZE_TYPE__ __fdslen),
33 __poll_chk)
34 __warnattr ("poll called with fds buffer too small file nfds entries");
35
36__fortify_function __fortified_attr_access (__write_only__, 1, 2) int
37poll (struct pollfd *__fds, nfds_t __nfds, int __timeout)
38{
39 return __glibc_fortify (poll, __nfds, sizeof (*__fds),
40 __glibc_objsize (__fds),
41 __fds, __nfds, __timeout);
42}
43
44
45#ifdef __USE_GNU
46extern int __REDIRECT (__ppoll_alias, (struct pollfd *__fds, nfds_t __nfds,
47 const struct timespec *__timeout,
48 const __sigset_t *__ss), ppoll);
49extern int __ppoll_chk (struct pollfd *__fds, nfds_t __nfds,
50 const struct timespec *__timeout,
51 const __sigset_t *__ss, __SIZE_TYPE__ __fdslen)
52 __attr_access ((__write_only__, 1, 2));
53extern int __REDIRECT (__ppoll_chk_warn, (struct pollfd *__fds, nfds_t __nfds,
54 const struct timespec *__timeout,
55 const __sigset_t *__ss,
56 __SIZE_TYPE__ __fdslen),
57 __ppoll_chk)
58 __warnattr ("ppoll called with fds buffer too small file nfds entries");
59
60__fortify_function __fortified_attr_access (__write_only__, 1, 2) int
61ppoll (struct pollfd *__fds, nfds_t __nfds, const struct timespec *__timeout,
62 const __sigset_t *__ss)
63{
64 return __glibc_fortify (ppoll, __nfds, sizeof (*__fds),
65 __glibc_objsize (__fds),
66 __fds, __nfds, __timeout, __ss);
67}
68#endif
69
70__END_DECLS
71