source: unix.c @ cfcc587

Last change on this file since cfcc587 was f56c491, checked in by Jelmer Vernooij <jelmer@…>, at 2005-11-15T13:35:24Z

Merge new changes from pluginable and Wilmer

  • Property mode set to 100644
File size: 4.7 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 );
38
39int main( int argc, char *argv[] )
40{
41        int i = 0;
42        struct sigaction sig, old;
43       
44        memset( &global, 0, sizeof( global_t ) );
45       
46        global.loop = g_main_new( FALSE );
47       
48        log_init( );
49
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                log_link( LOGLVL_ERROR, LOGOUTPUT_IRC );
63                log_link( LOGLVL_WARNING, LOGOUTPUT_IRC );
64       
65                i = bitlbee_inetd_init();
66                log_message( LOGLVL_INFO, "Bitlbee %s starting in inetd mode.", BITLBEE_VERSION );
67
68        }
69        else if( global.conf->runmode == RUNMODE_DAEMON )
70        {
71                log_link( LOGLVL_ERROR, LOGOUTPUT_SYSLOG );
72                log_link( LOGLVL_WARNING, LOGOUTPUT_SYSLOG );
73
74                i = bitlbee_daemon_init();
75                log_message( LOGLVL_INFO, "Bitlbee %s starting in daemon mode.", BITLBEE_VERSION );
76        }
77        if( i != 0 )
78                return( i );
79       
80        /* Catch some signals to tell the user what's happening before quitting */
81        memset( &sig, 0, sizeof( sig ) );
82        sig.sa_handler = sighandler;
83        sigaction( SIGPIPE, &sig, &old );
84        sig.sa_flags = SA_RESETHAND;
85        sigaction( SIGINT,  &sig, &old );
86        sigaction( SIGILL,  &sig, &old );
87        sigaction( SIGBUS,  &sig, &old );
88        sigaction( SIGFPE,  &sig, &old );
89        sigaction( SIGSEGV, &sig, &old );
90        sigaction( SIGTERM, &sig, &old );
91        sigaction( SIGQUIT, &sig, &old );
92        sigaction( SIGXCPU, &sig, &old );
93       
94        if( !getuid() || !geteuid() )
95                log_message( LOGLVL_WARNING, "BitlBee is running with root privileges. Why?" );
96        if( access( global.conf->configdir, F_OK ) != 0 )
97                log_message( LOGLVL_WARNING, "The configuration directory %s does not exist. Configuration won't be saved.", CONFIG );
98        else if( access( global.conf->configdir, R_OK ) != 0 || access( global.conf->configdir, W_OK ) != 0 )
99                log_message( LOGLVL_WARNING, "Permission problem: Can't read/write from/to %s.", global.conf->configdir );
100        if( help_init( &(global.help) ) == NULL )
101                log_message( LOGLVL_WARNING, "Error opening helpfile %s.", HELP_FILE );
102       
103        g_main_run( global.loop );
104       
105        return( 0 );
106}
107
108static void sighandler( int signal )
109{
110        /* FIXME: In fact, calling log_message() here can be dangerous. But well, let's take the risk for now. */
111       
112        if( signal == SIGTERM )
113        {
114                static int first = 1;
115               
116                if( first )
117                {
118                        /* We don't know what we were doing when this signal came in. It's not safe to touch
119                           the user data now (not to mention writing them to disk), so add a timer. */
120                       
121                        log_message( LOGLVL_ERROR, "SIGTERM received, cleaning up process." );
122                        g_timeout_add_full( G_PRIORITY_LOW, 1, (GSourceFunc) bitlbee_shutdown, NULL, NULL );
123                       
124                        first = 0;
125                }
126                else
127                {
128                        /* Well, actually, for now we'll never need this part because this signal handler
129                           will never be called more than once in a session for a non-SIGPIPE signal...
130                           But just in case we decide to change that: */
131                       
132                        log_message( LOGLVL_ERROR, "SIGTERM received twice, so long for a clean shutdown." );
133                        raise( signal );
134                }
135        }
136        else if( signal != SIGPIPE )
137        {
138                log_message( LOGLVL_ERROR, "Fatal signal received: %d. That's probably a bug.", signal );
139                raise( signal );
140        }
141}
142
143double gettime()
144{
145        struct timeval time[1];
146
147        gettimeofday( time, 0 );
148        return( (double) time->tv_sec + (double) time->tv_usec / 1000000 );
149}
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