source: unix.c @ 21d09ac

Last change on this file since 21d09ac was 21d09ac, checked in by Wilmer van der Gaast <wilmer@…>, at 2005-11-09T01:02:05Z

Forgot to modify CHANGES again, and removed some more debugging code we don't
need anymore (and didn't want to have in a release in the first place...)

  • Property mode set to 100644
File size: 4.5 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        nogaim_init( );
50       
51        CONF_FILE = g_strdup( CONF_FILE_DEF );
52       
53        global.helpfile = g_strdup( HELP_FILE );
54       
55        global.conf = conf_load( argc, argv );
56        if( global.conf == NULL )
57                return( 1 );
58       
59        if( global.conf->runmode == RUNMODE_INETD )
60        {
61                i = bitlbee_inetd_init();
62                log_message( LOGLVL_INFO, "Bitlbee %s starting in inetd mode.", BITLBEE_VERSION );
63
64        }
65        else if( global.conf->runmode == RUNMODE_DAEMON )
66        {
67                i = bitlbee_daemon_init();
68                log_message( LOGLVL_INFO, "Bitlbee %s starting in daemon mode.", BITLBEE_VERSION );
69        }
70        if( i != 0 )
71                return( i );
72       
73        /* Catch some signals to tell the user what's happening before quitting */
74        memset( &sig, 0, sizeof( sig ) );
75        sig.sa_handler = sighandler;
76        sigaction( SIGPIPE, &sig, &old );
77        sig.sa_flags = SA_RESETHAND;
78        sigaction( SIGINT,  &sig, &old );
79        sigaction( SIGILL,  &sig, &old );
80        sigaction( SIGBUS,  &sig, &old );
81        sigaction( SIGFPE,  &sig, &old );
82        sigaction( SIGSEGV, &sig, &old );
83        sigaction( SIGTERM, &sig, &old );
84        sigaction( SIGQUIT, &sig, &old );
85        sigaction( SIGXCPU, &sig, &old );
86       
87        if( !getuid() || !geteuid() )
88                log_message( LOGLVL_WARNING, "BitlBee is running with root privileges. Why?" );
89        if( access( global.conf->configdir, F_OK ) != 0 )
90                log_message( LOGLVL_WARNING, "The configuration directory %s does not exist. Configuration won't be saved.", CONFIG );
91        else if( access( global.conf->configdir, R_OK ) != 0 || access( global.conf->configdir, W_OK ) != 0 )
92                log_message( LOGLVL_WARNING, "Permission problem: Can't read/write from/to %s.", global.conf->configdir );
93        if( help_init( &(global.help) ) == NULL )
94                log_message( LOGLVL_WARNING, "Error opening helpfile %s.", HELP_FILE );
95       
96        g_main_run( global.loop );
97       
98        return( 0 );
99}
100
101static void sighandler( int signal )
102{
103        /* FIXME: In fact, calling log_message() here can be dangerous. But well, let's take the risk for now. */
104       
105        if( signal == SIGTERM )
106        {
107                static int first = 1;
108               
109                if( first )
110                {
111                        /* We don't know what we were doing when this signal came in. It's not safe to touch
112                           the user data now (not to mention writing them to disk), so add a timer. */
113                       
114                        log_message( LOGLVL_ERROR, "SIGTERM received, cleaning up process." );
115                        g_timeout_add_full( G_PRIORITY_LOW, 1, (GSourceFunc) bitlbee_shutdown, NULL, NULL );
116                       
117                        first = 0;
118                }
119                else
120                {
121                        /* Well, actually, for now we'll never need this part because this signal handler
122                           will never be called more than once in a session for a non-SIGPIPE signal...
123                           But just in case we decide to change that: */
124                       
125                        log_message( LOGLVL_ERROR, "SIGTERM received twice, so long for a clean shutdown." );
126                        raise( signal );
127                }
128        }
129        else if( signal != SIGPIPE )
130        {
131                log_message( LOGLVL_ERROR, "Fatal signal received: %d. That's probably a bug.", signal );
132                raise( signal );
133        }
134}
135
136double gettime()
137{
138        struct timeval time[1];
139
140        gettimeofday( time, 0 );
141        return( (double) time->tv_sec + (double) time->tv_usec / 1000000 );
142}
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