source: unix.c @ 4c266f2

Last change on this file since 4c266f2 was d25f6fc, checked in by Wilmer van der Gaast <wilmer@…>, at 2005-12-26T14:02:47Z

Added OperPassword and RunMode = ForkDaemon settings. Oper stuff is
*INSECURE* because users can just do /mode +o to become operator.

  • Property mode set to 100644
File size: 4.9 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#include <sys/wait.h>
35
36global_t global;        /* Against global namespace pollution */
37
38static void sighandler( int signal );
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
62        if( global.conf->runmode == RUNMODE_INETD )
63        {
64                i = bitlbee_inetd_init();
65                log_message( LOGLVL_INFO, "Bitlbee %s starting in inetd mode.", BITLBEE_VERSION );
66
67        }
68        else if( global.conf->runmode == RUNMODE_DAEMON )
69        {
70                i = bitlbee_daemon_init();
71                log_message( LOGLVL_INFO, "Bitlbee %s starting in daemon mode.", BITLBEE_VERSION );
72        }
73        else if( global.conf->runmode == RUNMODE_FORKDAEMON )
74        {
75                i = bitlbee_daemon_init();
76                log_message( LOGLVL_INFO, "Bitlbee %s starting in forking daemon mode.", BITLBEE_VERSION );
77        }
78        if( i != 0 )
79                return( i );
80
81        global.storage = storage_init( global.conf->primary_storage, global.conf->migrate_storage );
82        if ( global.storage == NULL) {
83                log_message( LOGLVL_ERROR, "Unable to load storage backend '%s'", global.conf->primary_storage );
84                return( 1 );
85        }
86       
87       
88        /* Catch some signals to tell the user what's happening before quitting */
89        memset( &sig, 0, sizeof( sig ) );
90        sig.sa_handler = sighandler;
91        sigaction( SIGCHLD, &sig, &old );
92        sigaction( SIGPIPE, &sig, &old );
93        sig.sa_flags = SA_RESETHAND;
94        sigaction( SIGINT,  &sig, &old );
95        sigaction( SIGILL,  &sig, &old );
96        sigaction( SIGBUS,  &sig, &old );
97        sigaction( SIGFPE,  &sig, &old );
98        sigaction( SIGSEGV, &sig, &old );
99        sigaction( SIGTERM, &sig, &old );
100        sigaction( SIGQUIT, &sig, &old );
101        sigaction( SIGXCPU, &sig, &old );
102       
103        if( !getuid() || !geteuid() )
104                log_message( LOGLVL_WARNING, "BitlBee is running with root privileges. Why?" );
105        if( help_init( &(global.help) ) == NULL )
106                log_message( LOGLVL_WARNING, "Error opening helpfile %s.", HELP_FILE );
107       
108        g_main_run( global.loop );
109       
110        return( 0 );
111}
112
113static void sighandler( int signal )
114{
115        /* FIXME: Calling log_message() here is not a very good idea! */
116       
117        if( signal == SIGTERM )
118        {
119                static int first = 1;
120               
121                if( first )
122                {
123                        /* We don't know what we were doing when this signal came in. It's not safe to touch
124                           the user data now (not to mention writing them to disk), so add a timer. */
125                       
126                        log_message( LOGLVL_ERROR, "SIGTERM received, cleaning up process." );
127                        g_timeout_add_full( G_PRIORITY_LOW, 1, (GSourceFunc) bitlbee_shutdown, NULL, NULL );
128                       
129                        first = 0;
130                }
131                else
132                {
133                        /* Well, actually, for now we'll never need this part because this signal handler
134                           will never be called more than once in a session for a non-SIGPIPE signal...
135                           But just in case we decide to change that: */
136                       
137                        log_message( LOGLVL_ERROR, "SIGTERM received twice, so long for a clean shutdown." );
138                        raise( signal );
139                }
140        }
141        else if( signal == SIGCHLD )
142        {
143                pid_t pid;
144                int st;
145               
146                while( ( pid = waitpid( 0, &st, WNOHANG ) ) > 0 )
147                {
148                        if( WIFSIGNALED( st ) )
149                                log_message( LOGLVL_INFO, "Client %d terminated normally. (status = %d)", pid, WEXITSTATUS( st ) );
150                        else if( WIFEXITED( st ) )
151                                log_message( LOGLVL_INFO, "Client %d killed by signal %d.", pid, WTERMSIG( st ) );
152                }
153        }
154        else if( signal != SIGPIPE )
155        {
156                log_message( LOGLVL_ERROR, "Fatal signal received: %d. That's probably a bug.", signal );
157                raise( signal );
158        }
159}
160
161double gettime()
162{
163        struct timeval time[1];
164
165        gettimeofday( time, 0 );
166        return( (double) time->tv_sec + (double) time->tv_usec / 1000000 );
167}
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