| /* Checking macros for poll functions. |
| Copyright (C) 2012-2021 Free Software Foundation, Inc. |
| This file is part of the GNU C Library. |
| |
| The GNU C Library is free software; you can redistribute it and/or |
| modify it under the terms of the GNU Lesser General Public |
| License as published by the Free Software Foundation; either |
| version 2.1 of the License, or (at your option) any later version. |
| |
| The GNU C Library is distributed in the hope that it will be useful, |
| but WITHOUT ANY WARRANTY; without even the implied warranty of |
| MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| Lesser General Public License for more details. |
| |
| You should have received a copy of the GNU Lesser General Public |
| License along with the GNU C Library; if not, see |
| <https://www.gnu.org/licenses/>. */ |
| |
| #ifndef _SYS_POLL_H |
| # error "Never include <bits/poll2.h> directly; use <sys/poll.h> instead." |
| #endif |
| |
| |
| __BEGIN_DECLS |
| |
| extern int __REDIRECT (__poll_alias, (struct pollfd *__fds, nfds_t __nfds, |
| int __timeout), poll); |
| extern int __poll_chk (struct pollfd *__fds, nfds_t __nfds, int __timeout, |
| __SIZE_TYPE__ __fdslen); |
| |
| __fortify_potential_overload int |
| poll (struct pollfd *const __clang_pass_object_size __fds, nfds_t __nfds, |
| int __timeout) |
| __FORTIFY_PRECONDITIONS |
| __FORTIFY_WARNING_ONLY_IF_BOS_LT2 (__poll_warn, __nfds, __fds, |
| sizeof (*__fds), |
| "poll called with fds buffer too small") |
| { |
| if (__FORTIFY_CALL_CHK && __glibc_objsize (__fds) != (__SIZE_TYPE__) -1) |
| return __poll_chk (__fds, __nfds, __timeout, __glibc_objsize (__fds)); |
| return __poll_alias (__fds, __nfds, __timeout); |
| } |
| __FORTIFY_FUNCTION_END |
| |
| #ifdef __USE_GNU |
| extern int __REDIRECT (__ppoll_alias, (struct pollfd *__fds, nfds_t __nfds, |
| const struct timespec *__timeout, |
| const __sigset_t *__ss), ppoll); |
| extern int __ppoll_chk (struct pollfd *__fds, nfds_t __nfds, |
| const struct timespec *__timeout, |
| const __sigset_t *__ss, __SIZE_TYPE__ __fdslen); |
| |
| __fortify_potential_overload int |
| ppoll (struct pollfd *const __clang_pass_object_size __fds, nfds_t __nfds, |
| const struct timespec *__timeout, const __sigset_t *__ss) |
| __FORTIFY_PRECONDITIONS |
| __FORTIFY_WARNING_ONLY_IF_BOS_LT2 (__ppoll_warn, __nfds, __fds, |
| sizeof (*__fds), |
| "ppoll called with fds buffer too " |
| "small file nfds entries") |
| { |
| if (__FORTIFY_CALL_CHK && __glibc_objsize (__fds) != (__SIZE_TYPE__) -1) |
| return __ppoll_chk (__fds, __nfds, __timeout, __ss, |
| __glibc_objsize (__fds)); |
| return __ppoll_alias (__fds, __nfds, __timeout, __ss); |
| } |
| __FORTIFY_FUNCTION_END |
| #endif |
| |
| __END_DECLS |
