/* Checking macros for poll functions.
   Copyright (C) 2012-2020 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 && __bos (__fds) != (__SIZE_TYPE__) -1)
    return __poll_chk (__fds, __nfds, __timeout, __bos (__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 && __bos (__fds) != (__SIZE_TYPE__) -1)
    return __ppoll_chk (__fds, __nfds, __timeout, __ss, __bos (__fds));
  return __ppoll_alias (__fds, __nfds, __timeout, __ss);
}
__FORTIFY_FUNCTION_END
#endif

__END_DECLS