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sigevents.c
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sigevents.c
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/*
* The Minger Email Address Verification Daemon
* Copyright (C) 2012 David De Grave <[email protected]>
*
* http://sourceforge.net/projects/mingerd
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see http://www.gnu.org/licenses/.
*/
#include "sigevents.h"
#include "common.h"
#include "log.h"
#include <signal.h>
bool sig_event;
bool terminate;
int sig_num;
static struct sigaction oldsigterm,
oldsigint,
oldsigquit;
static sigset_t sigset;
void event_handler(int sig)
{
sig_num = sig;
sig_event = true;
if ( sig == SIGTERM || sig == SIGINT || sig == SIGQUIT ) {
terminate = true;
}
printlog(stdlog, PL_DEBUG, "--- got signal %d", sig);
}
int install_sigevents(void)
{
struct sigaction sigopt;
terminate =
sig_event =
sig_num = 0;
memset(&sigopt, 0, sizeof(sigopt));
sigopt.sa_handler = event_handler;
sigaction(SIGTERM, &sigopt, &oldsigterm);
sigaction(SIGINT, &sigopt, &oldsigint);
sigaction(SIGQUIT, &sigopt, &oldsigquit);
sigfillset(&sigset);
sigdelset(&sigset, SIGTERM);
sigdelset(&sigset, SIGINT);
sigdelset(&sigset, SIGQUIT);
sigprocmask(SIG_SETMASK, &sigset, NULL); /* Keep non interresting signals blocked */
return 0;
}