signals.c revision 7c478bd95313f5f23a4c958a745db2134aa03244
/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License, Version 1.0 only
* (the "License"). You may not use this file except in compliance
* with the License.
*
* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
* or http://www.opensolaris.org/os/licensing.
* See the License for the specific language governing permissions
* and limitations under the License.
*
* When distributing Covered Code, include this CDDL HEADER in each
* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
* If applicable, add the following below this CDDL HEADER, with the
* fields enclosed by brackets "[]" replaced with your own identifying
* information: Portions Copyright [yyyy] [name of copyright owner]
*
* CDDL HEADER END
*/
/*
* Copyright 1998-2003 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*/
#pragma ident "%Z%%M% %I% %E% SMI"
#include <sys/types.h>
#include <signal.h>
#include <stdio.h>
#include "snmp_msg.h"
#include "signals.h"
#include "error.h"
/*
* SIGQUIT: do not trap it to be able to generate a core
*/
int
signals_init(void signals_sighup(), void signals_exit(), char *error_label)
{
struct sigaction act;
act.sa_flags = 0;
error_label[0] = '\0';
act.sa_handler = signals_sighup;
if (sigaction(SIGHUP, &act, NULL) == -1) {
(void) sprintf(error_label, ERR_MSG_SIGACT, SIGHUP,
"signals_sighup()", errno_string());
return (-1);
} else {
act.sa_handler = signals_exit;
if (sigaction(SIGINT, &act, NULL) == -1) {
(void) sprintf(error_label, ERR_MSG_SIGACT, SIGINT,
"signals_exit()", errno_string());
return (-1);
} else if (sigaction(SIGTERM, &act, NULL) == -1) {
(void) sprintf(error_label, ERR_MSG_SIGACT, SIGTERM,
"signals_exit()", errno_string());
return (-1);
} else if (sigaction(SIGUSR1, &act, NULL) == -1) {
(void) sprintf(error_label, ERR_MSG_SIGACT, SIGUSR1,
"signals_exit()", errno_string());
return (-1);
} else if (sigaction(SIGUSR2, &act, NULL) == -1) {
(void) sprintf(error_label, ERR_MSG_SIGACT, SIGUSR2,
"signals_exit()", errno_string());
return (-1);
} else {
act.sa_handler = SIG_IGN;
if (sigaction(SIGCHLD, &act, NULL) == -1) {
(void) sprintf(error_label, ERR_MSG_SIGACT,
SIGCHLD, "SIG_IGN", errno_string());
return (-1);
} else {
return (0);
}
}
}
}