source: unix.c @ 7b23afd

Last change on this file since 7b23afd was 7b23afd, checked in by Jelmer Vernooij <jelmer@…>, at 2005-11-07T16:16:18Z

Migrate my pluginable branch to use Wilmers' branch as parent

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