1/*
2 * CDDL HEADER START
3 *
4 * The contents of this file are subject to the terms of the
5 * Common Development and Distribution License, Version 1.0 only
6 * (the "License").  You may not use this file except in compliance
7 * with the License.
8 *
9 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
10 * or http://www.opensolaris.org/os/licensing.
11 * See the License for the specific language governing permissions
12 * and limitations under the License.
13 *
14 * When distributing Covered Code, include this CDDL HEADER in each
15 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
16 * If applicable, add the following below this CDDL HEADER, with the
17 * fields enclosed by brackets "[]" replaced with your own identifying
18 * information: Portions Copyright [yyyy] [name of copyright owner]
19 *
20 * CDDL HEADER END
21 */
22/*
23 * Copyright 1998-2003 Sun Microsystems, Inc.  All rights reserved.
24 * Use is subject to license terms.
25 */
26
27#pragma ident	"%Z%%M%	%I%	%E% SMI"
28
29#include <sys/types.h>
30#include <signal.h>
31#include <stdio.h>
32
33#include "snmp_msg.h"
34#include "signals.h"
35#include "error.h"
36
37/*
38 *	SIGQUIT: do not trap it to be able to generate a core
39 */
40
41int
42signals_init(void signals_sighup(), void signals_exit(), char *error_label)
43{
44
45	struct sigaction act;
46	act.sa_flags = 0;
47	error_label[0] = '\0';
48
49	act.sa_handler = signals_sighup;
50	if (sigaction(SIGHUP, &act, NULL) == -1) {
51		(void) sprintf(error_label, ERR_MSG_SIGACT, SIGHUP,
52		"signals_sighup()", errno_string());
53		return (-1);
54	} else {
55		act.sa_handler = signals_exit;
56		if (sigaction(SIGINT, &act, NULL) == -1) {
57			(void) sprintf(error_label, ERR_MSG_SIGACT, SIGINT,
58			"signals_exit()", errno_string());
59			return (-1);
60		} else if (sigaction(SIGTERM, &act, NULL)  == -1) {
61			(void) sprintf(error_label, ERR_MSG_SIGACT, SIGTERM,
62			"signals_exit()", errno_string());
63			return (-1);
64		} else if (sigaction(SIGUSR1, &act, NULL) == -1) {
65			(void) sprintf(error_label, ERR_MSG_SIGACT, SIGUSR1,
66			"signals_exit()", errno_string());
67			return (-1);
68		} else if (sigaction(SIGUSR2, &act, NULL) == -1) {
69			(void) sprintf(error_label, ERR_MSG_SIGACT, SIGUSR2,
70			"signals_exit()", errno_string());
71			return (-1);
72
73		} else {
74			act.sa_handler = SIG_IGN;
75			if (sigaction(SIGCHLD, &act, NULL) == -1) {
76				(void) sprintf(error_label, ERR_MSG_SIGACT,
77				SIGCHLD, "SIG_IGN", errno_string());
78				return (-1);
79			} else {
80				return (0);
81			}
82		}
83	}
84}
85