2 * cleanup.c - Cleanup and shutdown framework.
4 * Copyright 2004 Jonathan McDowell <noodles@earth.li>
6 * This program is free software: you can redistribute it and/or modify it
7 * under the terms of the GNU General Public License as published by the Free
8 * Software Foundation; version 2 of the License.
10 * This program is distributed in the hope that it will be useful, but WITHOUT
11 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
12 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
15 * You should have received a copy of the GNU General Public License along with
16 * this program. If not, see <https://www.gnu.org/licenses/>.
24 #include "onak-conf.h"
26 static bool should_cleanup = false;
29 * trytocleanup - say we should try to cleanup.
31 * This function sets the cleanup flag indicating we want to try and
34 void trytocleanup(void)
36 logthing(LOGTHING_INFO, "Setting cleanup flag.");
37 should_cleanup = true;
43 * cleanup - indicate if we should try to cleanup.
45 * This function returns a bool which indicates if we want to cleanup and
50 return(should_cleanup);
54 * sig_cleanup - set the cleanup flag when we receive a signal
56 * This is our signal handler; all it does it log the fact we got a signal
57 * and set the cleanup flag.
59 void sig_cleanup(int signal)
61 logthing(LOGTHING_INFO, "Got signal %d.", signal);
68 * catchsignals - Register signal handlers for various signals.
70 * This function registers a signal handler for various signals (PIPE,
71 * ALRM, INT, TERM, HUP) that sets the cleanup flag so we try to exit
74 void catchsignals(void)
76 if (config.use_keyd) {
80 logthing(LOGTHING_INFO, "Catching signals");
82 signal(SIGALRM, &sig_cleanup);
83 signal(SIGPIPE, &sig_cleanup);
84 signal(SIGTERM, &sig_cleanup);
85 signal(SIGINT, &sig_cleanup);
86 signal(SIGHUP, &sig_cleanup);