118 lines
2.2 KiB
C
118 lines
2.2 KiB
C
/*
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* Signal handling functions
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*
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* Copyright 2004 SYSGO Real-Time Solutions AG
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* Klein-Winternheim, Germany
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* All rights reserved.
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*
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* Author: Armin Schindler <armin.schindler@sysgo.com>
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*
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* $Id$
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by the
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* Free Software Foundation; either version 2 of the License, or (at your
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* option) any later version. See <http://www.fsf.org/copyleft/gpl.txt>.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
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* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* for more details.
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*/
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <ctype.h>
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#include <signal.h>
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#include <errno.h>
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#include <unistd.h>
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#include <signal.h>
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <isdntun.h>
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int Terminate = 0;
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int Hupsignal = 0;
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int Dialsignal = 0;
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/*
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* SIGTERM signal handler
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*/
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static void sig_term(int sig)
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{
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dbglog("Got signal TERM/INT");
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Terminate = 1;
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status = EXIT_USER_REQUEST;
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}
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/*
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* SIGHUP signal handler
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*/
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static void sig_hup(int sig)
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{
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dbglog("Got signal HUP");
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Hupsignal = 1;
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}
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/*
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* SIGUSR1 signal handler
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*/
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static void sig_usr1(int sig)
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{
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dbglog("Got signal USR1");
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Dialsignal = 1;
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}
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/*
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* SIGUSR2 signal handler
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*/
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static void sig_usr2(int sig)
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{
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dbglog("Got signal USR2");
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}
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/*
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* SIGCHLD
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*/
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static void sig_chld(int sig)
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{
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dbglog("Got signal CHLD");
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}
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/*
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* setup the signal handlers
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*/
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void signal_setup(void)
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{
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sigset_t mask;
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struct sigaction sa;
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sigemptyset(&mask);
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sigaddset(&mask,SIGHUP);
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sigaddset(&mask,SIGTERM);
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sigaddset(&mask,SIGINT);
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sigaddset(&mask,SIGUSR1);
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sigaddset(&mask,SIGUSR2);
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sigaddset(&mask,SIGCHLD);
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#define SIGNAL(s, handler) { \
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sa.sa_handler = handler; \
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if (sigaction(s, &sa , NULL) < 0) { \
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fatal("ERROR setting up the signal handlers"); \
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exit(-2); \
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} \
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}
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sa.sa_mask = mask;
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sa.sa_flags = 0;
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SIGNAL(SIGHUP, sig_hup);
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SIGNAL(SIGTERM, sig_term);
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SIGNAL(SIGINT, sig_term);
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SIGNAL(SIGUSR1, sig_usr1);
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SIGNAL(SIGUSR2, sig_usr2);
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SIGNAL(SIGCHLD, sig_chld);
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}
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