xref: /onnv-gate/usr/src/lib/libc/port/sys/siginterrupt.c (revision 6812:febeba71273d)
10Sstevel@tonic-gate /*
20Sstevel@tonic-gate  * CDDL HEADER START
30Sstevel@tonic-gate  *
40Sstevel@tonic-gate  * The contents of this file are subject to the terms of the
5*6812Sraf  * Common Development and Distribution License (the "License").
6*6812Sraf  * You may not use this file except in compliance with the License.
70Sstevel@tonic-gate  *
80Sstevel@tonic-gate  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
90Sstevel@tonic-gate  * or http://www.opensolaris.org/os/licensing.
100Sstevel@tonic-gate  * See the License for the specific language governing permissions
110Sstevel@tonic-gate  * and limitations under the License.
120Sstevel@tonic-gate  *
130Sstevel@tonic-gate  * When distributing Covered Code, include this CDDL HEADER in each
140Sstevel@tonic-gate  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
150Sstevel@tonic-gate  * If applicable, add the following below this CDDL HEADER, with the
160Sstevel@tonic-gate  * fields enclosed by brackets "[]" replaced with your own identifying
170Sstevel@tonic-gate  * information: Portions Copyright [yyyy] [name of copyright owner]
180Sstevel@tonic-gate  *
190Sstevel@tonic-gate  * CDDL HEADER END
200Sstevel@tonic-gate  */
21*6812Sraf 
220Sstevel@tonic-gate /*
23*6812Sraf  * Copyright 2008 Sun Microsystems, Inc.  All rights reserved.
240Sstevel@tonic-gate  * Use is subject to license terms.
250Sstevel@tonic-gate  */
260Sstevel@tonic-gate 
270Sstevel@tonic-gate #pragma ident	"%Z%%M%	%I%	%E% SMI"
280Sstevel@tonic-gate 
29*6812Sraf #include "lint.h"
300Sstevel@tonic-gate #include <sys/types.h>
310Sstevel@tonic-gate #include <errno.h>
320Sstevel@tonic-gate #include <signal.h>
330Sstevel@tonic-gate 
340Sstevel@tonic-gate int
siginterrupt(int sig,int flag)350Sstevel@tonic-gate siginterrupt(int sig, int flag)
360Sstevel@tonic-gate {
370Sstevel@tonic-gate 	struct sigaction act;
380Sstevel@tonic-gate 
390Sstevel@tonic-gate 	/*
400Sstevel@tonic-gate 	 * Check for valid signal number
410Sstevel@tonic-gate 	 */
420Sstevel@tonic-gate 	if (sig <= 0 || sig >= NSIG) {
430Sstevel@tonic-gate 		errno = EINVAL;
440Sstevel@tonic-gate 		return (-1);
450Sstevel@tonic-gate 	}
460Sstevel@tonic-gate 
470Sstevel@tonic-gate 	(void) sigaction(sig, NULL, &act);
480Sstevel@tonic-gate 	if (flag)
490Sstevel@tonic-gate 		act.sa_flags &= ~SA_RESTART;
500Sstevel@tonic-gate 	else
510Sstevel@tonic-gate 		act.sa_flags |= SA_RESTART;
520Sstevel@tonic-gate 	return (sigaction(sig, &act, NULL));
530Sstevel@tonic-gate }
54