source: unix.c @ 8e419cb

Last change on this file since 8e419cb was 8e419cb, checked in by Jelmer Vernooij <jelmer@…>, at 2006-01-10T21:35:08Z

Merge Wilmer

  • Property mode set to 100644
File size: 5.1 KB
Line 
1  /********************************************************************\
2  * BitlBee -- An IRC to other IM-networks gateway                     *
3  *                                                                    *
4  * Copyright 2002-2004 Wilmer van der Gaast and others                *
5  \********************************************************************/
6
7/* Main file (Unix specific part)                                       */
8
9/*
10  This program is free software; you can redistribute it and/or modify
11  it under the terms of the GNU General Public License as published by
12  the Free Software Foundation; either version 2 of the License, or
13  (at your option) any later version.
14
15  This program is distributed in the hope that it will be useful,
16  but WITHOUT ANY WARRANTY; without even the implied warranty of
17  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
18  GNU General Public License for more details.
19
20  You should have received a copy of the GNU General Public License with
21  the Debian GNU/Linux distribution in /usr/share/common-licenses/GPL;
22  if not, write to the Free Software Foundation, Inc., 59 Temple Place,
23  Suite 330, Boston, MA  02111-1307  USA
24*/
25
26#include "bitlbee.h"
27#include "commands.h"
28#include "crypting.h"
29#include "protocols/nogaim.h"
30#include "help.h"
31#include <signal.h>
32#include <unistd.h>
33#include <sys/time.h>
34#include <sys/wait.h>
35
36global_t global;        /* Against global namespace pollution */
37
38static void sighandler( int signal );
39
40int main( int argc, char *argv[] )
41{
42        int i = 0;
43        struct sigaction sig, old;
44       
45        memset( &global, 0, sizeof( global_t ) );
46       
47        global.loop = g_main_new( FALSE );
48       
49        log_init();
50
51        nogaim_init();
52
53        CONF_FILE = g_strdup( CONF_FILE_DEF );
54       
55        global.helpfile = g_strdup( HELP_FILE );
56
57        global.conf = conf_load( argc, argv );
58        if( global.conf == NULL )
59                return( 1 );
60
61
62        if( global.conf->runmode == RUNMODE_INETD )
63        {
64                log_link( LOGLVL_ERROR, LOGOUTPUT_IRC );
65                log_link( LOGLVL_WARNING, LOGOUTPUT_IRC );
66       
67                i = bitlbee_inetd_init();
68                log_message( LOGLVL_INFO, "Bitlbee %s starting in inetd mode.", BITLBEE_VERSION );
69
70        }
71        else if( global.conf->runmode == RUNMODE_DAEMON )
72        {
73                log_link( LOGLVL_ERROR, LOGOUTPUT_SYSLOG );
74                log_link( LOGLVL_WARNING, LOGOUTPUT_SYSLOG );
75
76                i = bitlbee_daemon_init();
77                log_message( LOGLVL_INFO, "Bitlbee %s starting in daemon mode.", BITLBEE_VERSION );
78        }
79        else if( global.conf->runmode == RUNMODE_FORKDAEMON )
80        {
81                i = bitlbee_daemon_init();
82                log_message( LOGLVL_INFO, "Bitlbee %s starting in forking daemon mode.", BITLBEE_VERSION );
83        }
84        if( i != 0 )
85                return( i );
86
87        global.storage = storage_init( global.conf->primary_storage, global.conf->migrate_storage );
88        if ( global.storage == NULL) {
89                log_message( LOGLVL_ERROR, "Unable to load storage backend '%s'", global.conf->primary_storage );
90                return( 1 );
91        }
92       
93       
94        /* Catch some signals to tell the user what's happening before quitting */
95        memset( &sig, 0, sizeof( sig ) );
96        sig.sa_handler = sighandler;
97        sigaction( SIGCHLD, &sig, &old );
98        sigaction( SIGPIPE, &sig, &old );
99        sig.sa_flags = SA_RESETHAND;
100        sigaction( SIGINT,  &sig, &old );
101        sigaction( SIGILL,  &sig, &old );
102        sigaction( SIGBUS,  &sig, &old );
103        sigaction( SIGFPE,  &sig, &old );
104        sigaction( SIGSEGV, &sig, &old );
105        sigaction( SIGTERM, &sig, &old );
106        sigaction( SIGQUIT, &sig, &old );
107        sigaction( SIGXCPU, &sig, &old );
108       
109        if( !getuid() || !geteuid() )
110                log_message( LOGLVL_WARNING, "BitlBee is running with root privileges. Why?" );
111        if( help_init( &(global.help) ) == NULL )
112                log_message( LOGLVL_WARNING, "Error opening helpfile %s.", HELP_FILE );
113       
114        g_main_run( global.loop );
115       
116        return( 0 );
117}
118
119static void sighandler( int signal )
120{
121        /* FIXME: Calling log_message() here is not a very good idea! */
122       
123        if( signal == SIGTERM )
124        {
125                static int first = 1;
126               
127                if( first )
128                {
129                        /* We don't know what we were doing when this signal came in. It's not safe to touch
130                           the user data now (not to mention writing them to disk), so add a timer. */
131                       
132                        log_message( LOGLVL_ERROR, "SIGTERM received, cleaning up process." );
133                        g_timeout_add_full( G_PRIORITY_LOW, 1, (GSourceFunc) bitlbee_shutdown, NULL, NULL );
134                       
135                        first = 0;
136                }
137                else
138                {
139                        /* Well, actually, for now we'll never need this part because this signal handler
140                           will never be called more than once in a session for a non-SIGPIPE signal...
141                           But just in case we decide to change that: */
142                       
143                        log_message( LOGLVL_ERROR, "SIGTERM received twice, so long for a clean shutdown." );
144                        raise( signal );
145                }
146        }
147        else if( signal == SIGCHLD )
148        {
149                pid_t pid;
150                int st;
151               
152                while( ( pid = waitpid( 0, &st, WNOHANG ) ) > 0 )
153                {
154                        if( WIFSIGNALED( st ) )
155                                log_message( LOGLVL_INFO, "Client %d terminated normally. (status = %d)", pid, WEXITSTATUS( st ) );
156                        else if( WIFEXITED( st ) )
157                                log_message( LOGLVL_INFO, "Client %d killed by signal %d.", pid, WTERMSIG( st ) );
158                }
159        }
160        else if( signal != SIGPIPE )
161        {
162                log_message( LOGLVL_ERROR, "Fatal signal received: %d. That's probably a bug.", signal );
163                raise( signal );
164        }
165}
166
167double gettime()
168{
169        struct timeval time[1];
170
171        gettimeofday( time, 0 );
172        return( (double) time->tv_sec + (double) time->tv_usec / 1000000 );
173}
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