diff options
Diffstat (limited to 'src/ircd_signal.c')
-rw-r--r-- | src/ircd_signal.c | 135 |
1 files changed, 135 insertions, 0 deletions
diff --git a/src/ircd_signal.c b/src/ircd_signal.c new file mode 100644 index 0000000..b76e542 --- /dev/null +++ b/src/ircd_signal.c @@ -0,0 +1,135 @@ +/* + * ircd-hybrid: an advanced Internet Relay Chat Daemon(ircd). + * ircd_signal.c: responsible for ircd's signal handling + * + * Copyright (C) 2002 by the past and present ircd coders, and others. + * + * 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 2 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, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 + * USA + * + * $Id$ + */ + +#include "stdinc.h" +#include "list.h" +#include "ircd_signal.h" +#include "ircd.h" /* dorehash */ +#include "restart.h" /* server_die */ +#include "memory.h" +#include "s_bsd.h" + +/* + * sigterm_handler - exit the server + */ +static void +sigterm_handler(int sig) +{ + server_die("received signal SIGTERM", 0); +} + +/* + * sighup_handler - reread the server configuration + */ +static void +sighup_handler(int sig) +{ + dorehash = 1; +} + +/* + * sigusr1_handler - reread the motd file + */ +static void +sigusr1_handler(int sig) +{ + doremotd = 1; +} + +/* + * + * inputs - nothing + * output - nothing + * side effects - Reaps zombies periodically + * -AndroSyn + */ +static void +sigchld_handler(int sig) +{ + int status; + waitpid(-1, &status, WNOHANG); +} + +/* + * sigint_handler - restart the server + */ +static void +sigint_handler(int sig) +{ + server_die("SIGINT received", !server_state.foreground); +} + +/* + * setup_signals - initialize signal handlers for server + */ +void +setup_signals(void) +{ + struct sigaction act; + + act.sa_flags = 0; + act.sa_handler = SIG_IGN; + + sigemptyset(&act.sa_mask); + sigaddset(&act.sa_mask, SIGPIPE); + sigaddset(&act.sa_mask, SIGALRM); + sigaction(SIGALRM, &act, 0); +#ifdef SIGTRAP + sigaddset(&act.sa_mask, SIGTRAP); +#endif +#ifdef SIGXFSZ + sigaddset(&act.sa_mask, SIGXFSZ); + sigaction(SIGXFSZ, &act, 0); +#endif + +#ifdef SIGWINCH + sigaddset(&act.sa_mask, SIGWINCH); + sigaction(SIGWINCH, &act, 0); +#endif + sigaction(SIGPIPE, &act, 0); +#ifdef SIGTRAP + sigaction(SIGTRAP, &act, 0); +#endif + + act.sa_handler = sighup_handler; + sigemptyset(&act.sa_mask); + sigaddset(&act.sa_mask, SIGHUP); + sigaction(SIGHUP, &act, 0); + + act.sa_handler = sigint_handler; + sigaddset(&act.sa_mask, SIGINT); + sigaction(SIGINT, &act, 0); + + act.sa_handler = sigterm_handler; + sigaddset(&act.sa_mask, SIGTERM); + sigaction(SIGTERM, &act, 0); + + act.sa_handler = sigusr1_handler; + sigaddset(&act.sa_mask, SIGUSR1); + sigaction(SIGUSR1, &act, 0); + + act.sa_handler = sigchld_handler; + sigaddset(&act.sa_mask, SIGCHLD); + sigaction(SIGCHLD, &act, 0); +} |