source: unix.c @ abe53d3

Last change on this file since abe53d3 was 99318ad, checked in by Jelmer Vernooij <jelmer@…>, at 2005-11-07T16:32:40Z

Import work on services-based Win32 port

  • Property mode set to 100644
File size: 5.3 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
35global_t global;        /* Against global namespace pollution */
36
37static void sighandler( int signal );
38gboolean bitlbee_dirty_workaround( gpointer data );
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        if( global.conf->runmode == RUNMODE_INETD )
62        {
63                log_link( LOGLVL_ERROR, LOGOUTPUT_IRC );
64                log_link( LOGLVL_WARNING, LOGOUTPUT_IRC );
65       
66                i = bitlbee_inetd_init();
67                log_message( LOGLVL_INFO, "Bitlbee %s starting in inetd mode.", BITLBEE_VERSION );
68
69        }
70        else if( global.conf->runmode == RUNMODE_DAEMON )
71        {
72                log_link( LOGLVL_ERROR, LOGOUTPUT_SYSLOG );
73                log_link( LOGLVL_WARNING, LOGOUTPUT_SYSLOG );
74
75                i = bitlbee_daemon_init();
76                log_message( LOGLVL_INFO, "Bitlbee %s starting in daemon mode.", BITLBEE_VERSION );
77        }
78        if( i != 0 )
79                return( i );
80       
81        /* Catch some signals to tell the user what's happening before quitting */
82        memset( &sig, 0, sizeof( sig ) );
83        sig.sa_handler = sighandler;
84        sigaction( SIGPIPE, &sig, &old );
85        sig.sa_flags = SA_RESETHAND;
86        sigaction( SIGINT,  &sig, &old );
87        sigaction( SIGILL,  &sig, &old );
88        sigaction( SIGBUS,  &sig, &old );
89        sigaction( SIGFPE,  &sig, &old );
90        sigaction( SIGSEGV, &sig, &old );
91        sigaction( SIGTERM, &sig, &old );
92        sigaction( SIGQUIT, &sig, &old );
93        sigaction( SIGXCPU, &sig, &old );
94       
95        if( !getuid() || !geteuid() )
96                log_message( LOGLVL_WARNING, "BitlBee is running with root privileges. Why?" );
97        if( access( global.conf->configdir, F_OK ) != 0 )
98                log_message( LOGLVL_WARNING, "The configuration directory %s does not exist. Configuration won't be saved.", CONFIG );
99        else if( access( global.conf->configdir, R_OK ) != 0 || access( global.conf->configdir, W_OK ) != 0 )
100                log_message( LOGLVL_WARNING, "Permission problem: Can't read/write from/to %s.", global.conf->configdir );
101        if( help_init( &(global.help) ) == NULL )
102                log_message( LOGLVL_WARNING, "Error opening helpfile %s.", HELP_FILE );
103       
104        /* Workaround against runaway problems. Bah, this is really dirty,
105           but in the end not really different from the <=0.91 situation,
106           which makes it an acceptable temporary "solution". */
107        // g_timeout_add( 0, bitlbee_dirty_workaround, NULL );
108       
109        g_main_run( global.loop );
110       
111        return( 0 );
112}
113
114gboolean bitlbee_dirty_workaround( gpointer data )
115{
116        usleep( 50000 );
117        return( TRUE );
118}
119
120void proxyprofiler_dump();
121
122static void sighandler( int signal )
123{
124        /* FIXME: In fact, calling log_message() here can be dangerous. But well, let's take the risk for now. */
125       
126        if( signal == SIGTERM )
127        {
128                static int first = 1;
129               
130                if( first )
131                {
132                        /* We don't know what we were doing when this signal came in. It's not safe to touch
133                           the user data now (not to mention writing them to disk), so add a timer. */
134                       
135                        log_message( LOGLVL_ERROR, "SIGTERM received, cleaning up process." );
136                        g_timeout_add_full( G_PRIORITY_LOW, 1, (GSourceFunc) bitlbee_shutdown, NULL, NULL );
137                       
138                        first = 0;
139                }
140                else
141                {
142                        /* Well, actually, for now we'll never need this part because this signal handler
143                           will never be called more than once in a session for a non-SIGPIPE signal...
144                           But just in case we decide to change that: */
145                       
146                        log_message( LOGLVL_ERROR, "SIGTERM received twice, so long for a clean shutdown." );
147                        raise( signal );
148                }
149        }
150#ifdef PROXYPROFILER
151        else if( signal == SIGXCPU )
152        {
153                write_io_activity();
154                proxyprofiler_dump();
155                log_message( LOGLVL_ERROR, "Received SIGXCPU, dumping some debugging info." );
156                exit( 1 );
157        }
158#endif
159        else if( signal != SIGPIPE )
160        {
161                log_message( LOGLVL_ERROR, "Fatal signal received: %d. That's probably a bug.", signal );
162                raise( signal );
163        }
164}
165
166double gettime()
167{
168        struct timeval time[1];
169
170        gettimeofday( time, 0 );
171        return( (double) time->tv_sec + (double) time->tv_usec / 1000000 );
172}
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