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/* Copyright (C) 1991, 1996, 1997, 1998, 2002 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
<http://www.gnu.org/licenses/>. */
#include <errno.h>
#include <signal.h>
#include <stddef.h>
#include <unistd.h>
/* Change the set of blocked signals to SET,
wait until a signal arrives, and restore the set of blocked signals. */
int
__sigsuspend (set)
const sigset_t *set;
{
int mask;
int sig;
if (set == NULL)
{
__set_errno (EINVAL);
return -1;
}
mask = 0;
for (sig = 1; sig <= NSIG; ++sig)
if (__sigismember (set, sig))
mask |= sigmask (sig);
return __sigpause (mask, 0);
}
libc_hidden_def (__sigsuspend)
weak_alias (__sigsuspend, sigsuspend)
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