trunk/src/ircd_signal.c

/*
 *  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 "s_log.h"
#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);
}
Revision:	1156
Committed:	Tue Aug 9 20:29:20 2011 UTC (14 years ago) by michael
Content type:	text/x-csrc
Original Path:	*ircd-hybrid-8/src/ircd_signal.c*
File size:	3022 byte(s)
Log Message:	- create ircd-hybrid-8 "branch"
#	User	Rev	Content
1	adx	30	/*
2			* ircd-hybrid: an advanced Internet Relay Chat Daemon(ircd).
3			* ircd_signal.c: responsible for ircd's signal handling
4			*
5			* Copyright (C) 2002 by the past and present ircd coders, and others.
6			*
7			* This program is free software; you can redistribute it and/or modify
8			* it under the terms of the GNU General Public License as published by
9			* the Free Software Foundation; either version 2 of the License, or
10			* (at your option) any later version.
11			*
12			* This program is distributed in the hope that it will be useful,
13			* but WITHOUT ANY WARRANTY; without even the implied warranty of
14			* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15			* GNU General Public License for more details.
16			*
17			* You should have received a copy of the GNU General Public License
18			* along with this program; if not, write to the Free Software
19			* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
20			* USA
21			*
22	knight	31	* $Id$
23	adx	30	*/
24
25			#include "stdinc.h"
26	michael	1011	#include "list.h"
27	adx	30	#include "ircd_signal.h"
28			#include "ircd.h" /* dorehash */
29	michael	594	#include "restart.h" /* server_die */
30	adx	30	#include "s_log.h"
31			#include "memory.h"
32			#include "s_bsd.h"
33
34			/*
35			* sigterm_handler - exit the server
36			*/
37			static void
38			sigterm_handler(int sig)
39			{
40	michael	1011	server_die("received signal SIGTERM", 0);
41	adx	30	}
42
43			/*
44			* sighup_handler - reread the server configuration
45			*/
46			static void
47			sighup_handler(int sig)
48			{
49			dorehash = 1;
50			}
51
52			/*
53			* sigusr1_handler - reread the motd file
54			*/
55			static void
56			sigusr1_handler(int sig)
57			{
58			doremotd = 1;
59			}
60
61			/*
62			*
63			* inputs - nothing
64			* output - nothing
65			* side effects - Reaps zombies periodically
66			* -AndroSyn
67			*/
68			static void
69			sigchld_handler(int sig)
70			{
71			int status;
72			waitpid(-1, &status, WNOHANG);
73			}
74
75			/*
76			* sigint_handler - restart the server
77			*/
78			static void
79			sigint_handler(int sig)
80			{
81	michael	594	server_die("SIGINT received", !server_state.foreground);
82	adx	30	}
83
84			/*
85			* setup_signals - initialize signal handlers for server
86			*/
87			void
88			setup_signals(void)
89			{
90			struct sigaction act;
91
92			act.sa_flags = 0;
93			act.sa_handler = SIG_IGN;
94	michael	594
95	adx	30	sigemptyset(&act.sa_mask);
96			sigaddset(&act.sa_mask, SIGPIPE);
97			sigaddset(&act.sa_mask, SIGALRM);
98	michael	598	sigaction(SIGALRM, &act, 0);
99	adx	30	#ifdef SIGTRAP
100			sigaddset(&act.sa_mask, SIGTRAP);
101			#endif
102	michael	594	#ifdef SIGXFSZ
103			sigaddset(&act.sa_mask, SIGXFSZ);
104			sigaction(SIGXFSZ, &act, 0);
105			#endif
106	adx	30
107			#ifdef SIGWINCH
108			sigaddset(&act.sa_mask, SIGWINCH);
109			sigaction(SIGWINCH, &act, 0);
110			#endif
111			sigaction(SIGPIPE, &act, 0);
112			#ifdef SIGTRAP
113			sigaction(SIGTRAP, &act, 0);
114			#endif
115
116			act.sa_handler = sighup_handler;
117			sigemptyset(&act.sa_mask);
118			sigaddset(&act.sa_mask, SIGHUP);
119			sigaction(SIGHUP, &act, 0);
120
121			act.sa_handler = sigint_handler;
122			sigaddset(&act.sa_mask, SIGINT);
123			sigaction(SIGINT, &act, 0);
124
125			act.sa_handler = sigterm_handler;
126			sigaddset(&act.sa_mask, SIGTERM);
127			sigaction(SIGTERM, &act, 0);
128
129			act.sa_handler = sigusr1_handler;
130			sigaddset(&act.sa_mask, SIGUSR1);
131			sigaction(SIGUSR1, &act, 0);
132
133			act.sa_handler = sigchld_handler;
134			sigaddset(&act.sa_mask, SIGCHLD);
135			sigaction(SIGCHLD, &act, 0);
136			}