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/********************************************************************\
* BitlBee -- An IRC to other IM-networks gateway *
* *
* Copyright 2002-2004 Wilmer van der Gaast and others *
\********************************************************************/
/* IPC - communication between BitlBee processes */
/*
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License with
the Debian GNU/Linux distribution in /usr/share/common-licenses/GPL;
if not, write to the Free Software Foundation, Inc., 59 Temple Place,
Suite 330, Boston, MA 02111-1307 USA
*/
#define BITLBEE_CORE
#include "bitlbee.h"
#include "ipc.h"
#include "commands.h"
GSList *child_list = NULL;
static int ipc_master_cmd_die( irc_t *data, char **cmd )
{
if( global.conf->runmode == RUNMODE_FORKDAEMON )
ipc_to_children_str( "DIE\r\n" );
bitlbee_shutdown( NULL );
return 1;
}
static int ipc_master_cmd_wallops( irc_t *data, char **cmd )
{
ipc_to_children( cmd );
return 1;
}
static const command_t ipc_master_commands[] = {
{ "die", 0, ipc_master_cmd_die, 0 },
{ "wallops", 1, ipc_master_cmd_wallops, 0 },
{ "lilo", 1, ipc_master_cmd_wallops, 0 },
{ NULL }
};
static int ipc_child_cmd_die( irc_t *data, char **cmd )
{
bitlbee_shutdown( NULL );
return 1;
}
static int ipc_child_cmd_wallops( irc_t *data, char **cmd )
{
irc_t *irc = data;
if( strchr( irc->umode, 'w' ) )
irc_write( irc, ":%s WALLOPS :%s", irc->myhost, cmd[1] );
return 1;
}
static int ipc_child_cmd_lilo( irc_t *data, char **cmd )
{
irc_t *irc = data;
if( strchr( irc->umode, 's' ) )
irc_write( irc, ":%s NOTICE %s :%s", irc->myhost, irc->nick, cmd[1] );
return 1;
}
static const command_t ipc_child_commands[] = {
{ "die", 0, ipc_child_cmd_die, 0 },
{ "wallops", 1, ipc_child_cmd_wallops, 0 },
{ "lilo", 1, ipc_child_cmd_lilo, 0 },
{ NULL }
};
static void ipc_command_exec( void *data, char **cmd, const command_t *commands )
{
int i;
if( !cmd[0] )
return;
for( i = 0; commands[i].command; i ++ )
if( g_strcasecmp( commands[i].command, cmd[0] ) == 0 )
{
commands[i].execute( data, cmd );
return;
}
}
static char *ipc_readline( int fd )
{
char *buf, *eol;
int size;
buf = g_new0( char, 513 );
/* Because this is internal communication, it should be pretty safe
to just peek at the message, find its length (by searching for the
end-of-line) and then just read that message. With internal
sockets and limites message length, messages should always be
complete. Saves us quite a lot of code and buffering. */
size = recv( fd, buf, 512, MSG_PEEK );
if( size == 0 || ( size < 0 && !sockerr_again() ) )
return NULL;
else
buf[size] = 0;
eol = strstr( buf, "\r\n" );
if( eol == NULL )
return NULL;
else
size = eol - buf + 2;
g_free( buf );
buf = g_new0( char, size + 1 );
if( recv( fd, buf, size, 0 ) != size )
return NULL;
else
buf[size-2] = 0;
return buf;
}
void ipc_master_read( gpointer data, gint source, GaimInputCondition cond )
{
char *buf, **cmd;
if( ( buf = ipc_readline( source ) ) )
{
cmd = irc_parse_line( buf );
if( cmd )
ipc_command_exec( data, cmd, ipc_master_commands );
}
else
{
GSList *l;
struct bitlbee_child *c;
for( l = child_list; l; l = l->next )
{
c = l->data;
if( c->ipc_fd == source )
{
close( c->ipc_fd );
gaim_input_remove( c->ipc_inpa );
g_free( c );
child_list = g_slist_remove( child_list, l );
break;
}
}
}
}
void ipc_child_read( gpointer data, gint source, GaimInputCondition cond )
{
char *buf, **cmd;
if( ( buf = ipc_readline( source ) ) )
{
cmd = irc_parse_line( buf );
if( cmd )
ipc_command_exec( data, cmd, ipc_child_commands );
}
else
{
gaim_input_remove( global.listen_watch_source_id );
close( global.listen_socket );
global.listen_socket = -1;
}
}
void ipc_to_master( char **cmd )
{
if( global.conf->runmode == RUNMODE_FORKDAEMON )
{
char *s = irc_build_line( cmd );
write( global.listen_socket, s, strlen( s ) );
g_free( s );
}
}
void ipc_to_children( char **cmd )
{
if( global.conf->runmode == RUNMODE_FORKDAEMON )
{
char *msg_buf = irc_build_line( cmd );
ipc_to_children_str( msg_buf );
g_free( msg_buf );
}
}
void ipc_to_children_str( char *msg_buf )
{
if( global.conf->runmode == RUNMODE_FORKDAEMON )
{
int msg_len = strlen( msg_buf );
GSList *l;
for( l = child_list; l; l = l->next )
{
struct bitlbee_child *c = l->data;
write( c->ipc_fd, msg_buf, msg_len );
}
}
}
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