source: unix.c @ 576d6d7

Last change on this file since 576d6d7 was b7d3cc34, checked in by Wilmer van der Gaast <wilmer@…>, at 2005-11-06T18:23:18Z

Initial repository (0.99 release tree)

  • 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
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        nogaim_init( );
51       
52        CONF_FILE = g_strdup( CONF_FILE_DEF );
53       
54        global.helpfile = g_strdup( HELP_FILE );
55       
56        global.conf = conf_load( argc, argv );
57        if( global.conf == NULL )
58                return( 1 );
59       
60        if( global.conf->runmode == RUNMODE_INETD )
61        {
62                i = bitlbee_inetd_init();
63                log_message( LOGLVL_INFO, "Bitlbee %s starting in inetd mode.", BITLBEE_VERSION );
64
65        }
66        else if( global.conf->runmode == RUNMODE_DAEMON )
67        {
68                i = bitlbee_daemon_init();
69                log_message( LOGLVL_INFO, "Bitlbee %s starting in daemon mode.", BITLBEE_VERSION );
70        }
71        if( i != 0 )
72                return( i );
73       
74        /* Catch some signals to tell the user what's happening before quitting */
75        memset( &sig, 0, sizeof( sig ) );
76        sig.sa_handler = sighandler;
77        sigaction( SIGPIPE, &sig, &old );
78        sig.sa_flags = SA_RESETHAND;
79        sigaction( SIGINT,  &sig, &old );
80        sigaction( SIGILL,  &sig, &old );
81        sigaction( SIGBUS,  &sig, &old );
82        sigaction( SIGFPE,  &sig, &old );
83        sigaction( SIGSEGV, &sig, &old );
84        sigaction( SIGTERM, &sig, &old );
85        sigaction( SIGQUIT, &sig, &old );
86        sigaction( SIGXCPU, &sig, &old );
87       
88        if( !getuid() || !geteuid() )
89                log_message( LOGLVL_WARNING, "BitlBee is running with root privileges. Why?" );
90        if( access( global.conf->configdir, F_OK ) != 0 )
91                log_message( LOGLVL_WARNING, "The configuration directory %s does not exist. Configuration won't be saved.", CONFIG );
92        else if( access( global.conf->configdir, R_OK ) != 0 || access( global.conf->configdir, W_OK ) != 0 )
93                log_message( LOGLVL_WARNING, "Permission problem: Can't read/write from/to %s.", global.conf->configdir );
94        if( help_init( &(global.help) ) == NULL )
95                log_message( LOGLVL_WARNING, "Error opening helpfile %s.", HELP_FILE );
96       
97        /* Workaround against runaway problems. Bah, this is really dirty,
98           but in the end not really different from the <=0.91 situation,
99           which makes it an acceptable temporary "solution". */
100        // g_timeout_add( 0, bitlbee_dirty_workaround, NULL );
101       
102        g_main_run( global.loop );
103       
104        return( 0 );
105}
106
107gboolean bitlbee_dirty_workaround( gpointer data )
108{
109        usleep( 50000 );
110        return( TRUE );
111}
112
113void proxyprofiler_dump();
114
115static void sighandler( int signal )
116{
117        /* FIXME: In fact, calling log_message() here can be dangerous. But well, let's take the risk for now. */
118       
119        if( signal == SIGTERM )
120        {
121                static int first = 1;
122               
123                if( first )
124                {
125                        /* We don't know what we were doing when this signal came in. It's not safe to touch
126                           the user data now (not to mention writing them to disk), so add a timer. */
127                       
128                        log_message( LOGLVL_ERROR, "SIGTERM received, cleaning up process." );
129                        g_timeout_add_full( G_PRIORITY_LOW, 1, (GSourceFunc) bitlbee_shutdown, NULL, NULL );
130                       
131                        first = 0;
132                }
133                else
134                {
135                        /* Well, actually, for now we'll never need this part because this signal handler
136                           will never be called more than once in a session for a non-SIGPIPE signal...
137                           But just in case we decide to change that: */
138                       
139                        log_message( LOGLVL_ERROR, "SIGTERM received twice, so long for a clean shutdown." );
140                        raise( signal );
141                }
142        }
143#ifdef PROXYPROFILER
144        else if( signal == SIGXCPU )
145        {
146                write_io_activity();
147                proxyprofiler_dump();
148                log_message( LOGLVL_ERROR, "Received SIGXCPU, dumping some debugging info." );
149                exit( 1 );
150        }
151#endif
152        else if( signal != SIGPIPE )
153        {
154                log_message( LOGLVL_ERROR, "Fatal signal received: %d. That's probably a bug.", signal );
155                raise( signal );
156        }
157}
158
159double gettime()
160{
161        struct timeval time[1];
162
163        gettimeofday( time, 0 );
164        return( (double) time->tv_sec + (double) time->tv_usec / 1000000 );
165}
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