[apple/xnu.git] / libsyscall / wrappers / sigsuspend-base.c

/*
 * Copyright (c) 1999 Apple Computer, Inc. All rights reserved.
 *
 * @APPLE_LICENSE_HEADER_START@
 *
 * This file contains Original Code and/or Modifications of Original Code
 * as defined in and that are subject to the Apple Public Source License
 * Version 2.0 (the 'License'). You may not use this file except in
 * compliance with the License. Please obtain a copy of the License at
 * http://www.opensource.apple.com/apsl/ and read it before using this
 * file.
 *
 * The Original Code and all software distributed under the License are
 * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
 * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
 * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
 * Please see the License for the specific language governing rights and
 * limitations under the License.
 *
 * @APPLE_LICENSE_HEADER_END@
 */
/*      @(#)sigsuspend.c        1.0     9/22/95 (c) 1995 NeXT   */

#include <signal.h>
#include <unistd.h>

int __SIGSUSPEND(const sigset_t);

int
sigsuspend(const sigset_t *sigmask_p)
{
        sigset_t    mask;

        if (sigmask_p) {
                mask = *sigmask_p;
        } else {
                sigemptyset(&mask);
        }
        return __SIGSUSPEND(mask);
}