glibc/signal/sigandset.c

35 lines
1.1 KiB
C

/* Copyright (C) 1991-2017 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 <sigsetops.h>
/* Combine sets LEFT and RIGHT by logical AND and place result in DEST. */
int
sigandset (sigset_t *dest, const sigset_t *left, const sigset_t *right)
{
if (!dest || !left || !right)
{
__set_errno (EINVAL);
return -1;
}
__sigandset (dest, left, right);
return 0;
}