1/*	$NetBSD: signal.c,v 1.3 2021/08/14 16:14:58 christos Exp $	*/
2
3/* $OpenLDAP$ */
4/* This work is part of OpenLDAP Software <http://www.openldap.org/>.
5 *
6 * Copyright 1998-2021 The OpenLDAP Foundation.
7 * All rights reserved.
8 *
9 * Redistribution and use in source and binary forms, with or without
10 * modification, are permitted only as authorized by the OpenLDAP
11 * Public License.
12 *
13 * A copy of this license is available in the file LICENSE in the
14 * top-level directory of the distribution or, alternatively, at
15 * <http://www.OpenLDAP.org/license.html>.
16 */
17
18#include <sys/cdefs.h>
19__RCSID("$NetBSD: signal.c,v 1.3 2021/08/14 16:14:58 christos Exp $");
20
21#include "portable.h"
22
23#ifdef HAVE_SIGACTION
24#include <ac/string.h>
25#include <ac/signal.h>
26
27lutil_sig_t
28lutil_sigaction(int sig, lutil_sig_t func)
29{
30	struct sigaction action, oaction;
31
32	memset( &action, '\0', sizeof(action) );
33
34	action.sa_handler = func;
35	sigemptyset( &action.sa_mask );
36#ifdef SA_RESTART
37	action.sa_flags |= SA_RESTART;
38#endif
39
40	if( sigaction( sig, &action, &oaction ) != 0 ) {
41		return NULL;
42	}
43
44	return oaction.sa_handler;
45}
46#endif
47