1/* $OpenLDAP$ */
2/* This work is part of OpenLDAP Software <http://www.openldap.org/>.
3 *
4 * Copyright 1998-2011 The OpenLDAP Foundation.
5 * All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted only as authorized by the OpenLDAP
9 * Public License.
10 *
11 * A copy of this license is available in the file LICENSE in the
12 * top-level directory of the distribution or, alternatively, at
13 * <http://www.OpenLDAP.org/license.html>.
14 */
15
16#include "portable.h"
17
18#ifdef HAVE_SIGACTION
19#include <ac/string.h>
20#include <ac/signal.h>
21
22lutil_sig_t
23lutil_sigaction(int sig, lutil_sig_t func)
24{
25	struct sigaction action, oaction;
26
27	memset( &action, '\0', sizeof(action) );
28
29	action.sa_handler = func;
30	sigemptyset( &action.sa_mask );
31#ifdef SA_RESTART
32	action.sa_flags |= SA_RESTART;
33#endif
34
35	if( sigaction( sig, &action, &oaction ) != 0 ) {
36		return NULL;
37	}
38
39	return oaction.sa_handler;
40}
41#endif
42