1 /* Checking macros for poll functions.
2 Copyright (C) 2012-2023 Free Software Foundation, Inc.
3 This file is part of the GNU C Library.
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.
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.
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/>. */
20 # error "Never include <bits/poll2.h> directly; use <sys/poll.h> instead."
26 extern int __REDIRECT (__poll_alias
, (struct pollfd
*__fds
, nfds_t __nfds
,
27 int __timeout
), poll
);
28 extern int __poll_chk (struct pollfd
*__fds
, nfds_t __nfds
, int __timeout
,
29 __SIZE_TYPE__ __fdslen
)
30 __attr_access ((__write_only__
, 1, 2));
31 extern int __REDIRECT (__poll_chk_warn
, (struct pollfd
*__fds
, nfds_t __nfds
,
32 int __timeout
, __SIZE_TYPE__ __fdslen
),
34 __warnattr ("poll called with fds buffer too small file nfds entries");
36 __fortify_function
__fortified_attr_access (__write_only__
, 1, 2) int
37 poll (struct pollfd
*__fds
, nfds_t __nfds
, int __timeout
)
39 return __glibc_fortify (poll
, __nfds
, sizeof (*__fds
),
40 __glibc_objsize (__fds
),
41 __fds
, __nfds
, __timeout
);
46 # ifdef __USE_TIME_BITS64
47 extern int __REDIRECT (__ppoll64_alias
, (struct pollfd
*__fds
, nfds_t __nfds
,
48 const struct timespec
*__timeout
,
49 const __sigset_t
*__ss
), __ppoll64
);
50 extern int __ppoll64_chk (struct pollfd
*__fds
, nfds_t __nfds
,
51 const struct timespec
*__timeout
,
52 const __sigset_t
*__ss
, __SIZE_TYPE__ __fdslen
)
53 __attr_access ((__write_only__
, 1, 2));
54 extern int __REDIRECT (__ppoll64_chk_warn
, (struct pollfd
*__fds
, nfds_t __n
,
55 const struct timespec
*__timeout
,
56 const __sigset_t
*__ss
,
57 __SIZE_TYPE__ __fdslen
),
59 __warnattr ("ppoll called with fds buffer too small file nfds entries");
61 __fortify_function
__fortified_attr_access (__write_only__
, 1, 2) int
62 ppoll (struct pollfd
*__fds
, nfds_t __nfds
, const struct timespec
*__timeout
,
63 const __sigset_t
*__ss
)
65 return __glibc_fortify (ppoll64
, __nfds
, sizeof (*__fds
),
66 __glibc_objsize (__fds
),
67 __fds
, __nfds
, __timeout
, __ss
);
70 extern int __REDIRECT (__ppoll_alias
, (struct pollfd
*__fds
, nfds_t __nfds
,
71 const struct timespec
*__timeout
,
72 const __sigset_t
*__ss
), ppoll
);
73 extern int __ppoll_chk (struct pollfd
*__fds
, nfds_t __nfds
,
74 const struct timespec
*__timeout
,
75 const __sigset_t
*__ss
, __SIZE_TYPE__ __fdslen
)
76 __attr_access ((__write_only__
, 1, 2));
77 extern int __REDIRECT (__ppoll_chk_warn
, (struct pollfd
*__fds
, nfds_t __nfds
,
78 const struct timespec
*__timeout
,
79 const __sigset_t
*__ss
,
80 __SIZE_TYPE__ __fdslen
),
82 __warnattr ("ppoll called with fds buffer too small file nfds entries");
84 __fortify_function
__fortified_attr_access (__write_only__
, 1, 2) int
85 ppoll (struct pollfd
*__fds
, nfds_t __nfds
, const struct timespec
*__timeout
,
86 const __sigset_t
*__ss
)
88 return __glibc_fortify (ppoll
, __nfds
, sizeof (*__fds
),
89 __glibc_objsize (__fds
),
90 __fds
, __nfds
, __timeout
, __ss
);