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/*
* 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 2004 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*/
/* Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T */
/* All Rights Reserved */
#include <stdio.h>
#include <signal.h>
#include "tmextern.h"
/*
* catch_signals:
* ttymon catch some signals and ignore the rest.
*
* SIGTERM - killed by somebody
* SIGPOLL - got message on pmpipe, probably from sac
* or on PCpipe
* SIGCLD - tmchild died
*/
void
catch_signals(void)
{
sigset_t cset;
struct sigaction sigact;
#ifdef DEBUG
debug("in catch_signals");
#endif
cset = Origmask;
(void) sigdelset(&cset, SIGTERM);
(void) sigdelset(&cset, SIGCLD);
(void) sigdelset(&cset, SIGPOLL);
#ifdef DEBUG
(void) sigdelset(&cset, SIGUSR1);
(void) sigdelset(&cset, SIGUSR2);
#endif
(void) sigprocmask(SIG_SETMASK, &cset, NULL);
sigact.sa_flags = 0;
sigact.sa_handler = sigterm;
(void) sigemptyset(&sigact.sa_mask);
(void) sigaddset(&sigact.sa_mask, SIGTERM);
(void) sigaction(SIGTERM, &sigact, NULL);
sigact.sa_flags = 0;
sigact.sa_handler = sigchild;
(void) sigemptyset(&sigact.sa_mask);
(void) sigaction(SIGCLD, &sigact, NULL);
sigact.sa_flags = 0;
sigact.sa_handler = sigpoll_catch;
(void) sigemptyset(&sigact.sa_mask);
(void) sigaddset(&sigact.sa_mask, SIGPOLL);
(void) sigaction(SIGPOLL, &sigact, NULL);
#ifdef DEBUG
sigact.sa_flags = 0;
sigact.sa_handler = dump_pmtab;
(void) sigemptyset(&sigact.sa_mask);
(void) sigaddset(&sigact.sa_mask, SIGUSR1);
(void) sigaction(SIGUSR1, &sigact, NULL);
sigact.sa_flags = 0;
sigact.sa_handler = dump_ttydefs;
(void) sigemptyset(&sigact.sa_mask);
(void) sigaddset(&sigact.sa_mask, SIGUSR2);
(void) sigaction(SIGUSR2, &sigact, NULL);
#endif
}
/*
* child_sigcatch() - tmchild inherits some signal_catch from parent
* and need to reset them
*/
void
child_sigcatch(void)
{
struct sigaction sigact;
sigset_t cset;
cset = Origmask;
(void) sigdelset(&cset, SIGINT);
(void) sigdelset(&cset, SIGPOLL);
(void) sigprocmask(SIG_SETMASK, &cset, NULL);
sigact.sa_flags = 0;
sigact.sa_handler = sigpoll;
(void) sigemptyset(&sigact.sa_mask);
(void) sigaddset(&sigact.sa_mask, SIGPOLL);
(void) sigaction(SIGPOLL, &sigact, NULL);
sigact.sa_flags = 0;
sigact.sa_handler = sigint;
(void) sigemptyset(&sigact.sa_mask);
(void) sigaddset(&sigact.sa_mask, SIGINT);
(void) sigaction(SIGINT, &sigact, NULL);
}
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