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/* |
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* ircd-hybrid: an advanced Internet Relay Chat Daemon(ircd). |
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* ircd_signal.c: responsible for ircd's signal handling |
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* |
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* Copyright (C) 2002 by the past and present ircd coders, and others. |
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* |
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* This program is free software; you can redistribute it and/or modify |
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* it under the terms of the GNU General Public License as published by |
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* the Free Software Foundation; either version 2 of the License, or |
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* (at your option) any later version. |
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* |
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* This program is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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* GNU General Public License for more details. |
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* |
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* You should have received a copy of the GNU General Public License |
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* along with this program; if not, write to the Free Software |
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 |
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* USA |
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* |
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* $Id$ |
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*/ |
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|
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#include "stdinc.h" |
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#include "ircd_signal.h" |
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#include "ircd.h" /* dorehash */ |
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#include "restart.h" /* server_die */ |
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|
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/* |
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* signal_handler - general handler for ircd signals |
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*/ |
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static void |
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signal_handler(int sig) |
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{ |
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switch (sig) |
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{ |
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case SIG_DIE: |
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server_die("received signal SIGTERM", NO); |
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break; |
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case SIG_RESTART: |
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server_die("received signal SIGINT", !ServerState.foreground); |
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break; |
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case SIG_REHASH: |
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dorehash = 1; |
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break; |
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case SIG_REMOTD: |
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doremotd = 1; |
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} |
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} |
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|
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#ifndef _WIN32 |
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/* |
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* |
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* inputs - nothing |
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* output - nothing |
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* side effects - Reaps zombies periodically |
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* -AndroSyn |
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*/ |
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static void |
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sigchld_handler(int sig) |
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{ |
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int status; |
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waitpid(-1, &status, WNOHANG); |
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} |
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#endif |
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|
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/* |
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* setup_signals - initialize signal handlers for server |
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*/ |
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void |
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setup_signals(void) |
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{ |
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#ifdef _WIN32 |
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dispatch_wm_signal = signal_handler; |
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#else |
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struct sigaction act; |
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|
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act.sa_flags = 0; |
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act.sa_handler = SIG_IGN; |
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|
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sigemptyset(&act.sa_mask); |
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|
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sigaddset(&act.sa_mask, SIGPIPE); |
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sigaction(SIGPIPE, &act, 0); |
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|
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sigaddset(&act.sa_mask, SIGALRM); |
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sigaction(SIGALRM, &act, 0); |
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|
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#ifdef SIGWINCH |
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sigaddset(&act.sa_mask, SIGWINCH); |
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sigaction(SIGWINCH, &act, 0); |
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#endif |
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|
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#ifdef SIGXFSZ |
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sigaddset(&act.sa_mask, SIGXFSZ); |
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sigaction(SIGXFSZ, &act, 0); |
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#endif |
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|
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act.sa_handler = signal_handler; |
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sigemptyset(&act.sa_mask); |
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|
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sigaddset(&act.sa_mask, SIG_REHASH); |
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sigaction(SIG_REHASH, &act, 0); |
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|
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sigaddset(&act.sa_mask, SIG_RESTART); |
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sigaction(SIG_RESTART, &act, 0); |
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|
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sigaddset(&act.sa_mask, SIG_DIE); |
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sigaction(SIG_DIE, &act, 0); |
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|
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sigaddset(&act.sa_mask, SIG_REMOTD); |
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sigaction(SIG_REMOTD, &act, 0); |
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|
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act.sa_handler = sigchld_handler; |
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sigaddset(&act.sa_mask, SIGCHLD); |
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sigaction(SIGCHLD, &act, 0); |
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#endif |
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} |
