diff options
Diffstat (limited to 'ipc.c')
| -rw-r--r-- | ipc.c | 207 |
1 files changed, 207 insertions, 0 deletions
@@ -0,0 +1,207 @@ + /********************************************************************\ + * 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 ) +{ + exit( 0 ); +} + +static int ipc_master_cmd_wallop( irc_t *data, char **cmd ) +{ + GSList *l; + char msg_buf[513]; + int msg_len; + + if( ( msg_len = g_snprintf( msg_buf, sizeof( msg_buf ) - 1, "WALLOP :%s\r\n", cmd[1] ) ) > ( sizeof( msg_buf ) - 1 ) ) + return 0; + + for( l = child_list; l; l = l->next ) + { + struct bitlbee_child *c = l->data; + write( c->ipc_fd, msg_buf, msg_len ); + } + + return 1; +} + +static const command_t ipc_master_commands[] = { + { "die", 0, ipc_master_cmd_die, 0 }, + { "wallop", 1, ipc_master_cmd_wallop, 1 }, + { NULL } +}; + +static int ipc_child_cmd_wallop( irc_t *data, char **cmd ) +{ + irc_t *irc = data; + + if( strchr( irc->umode, 'w' ) ) + irc_write( irc, ":%s WALLOP :%s", irc->myhost, cmd[1] ); + + return 1; +} + +static const command_t ipc_child_commands[] = { + { "wallop", 1, ipc_child_cmd_wallop, 1 }, + { 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 ) + { + int i, len; + char *s; + + len = 1; + for( i = 0; cmd[i]; i ++ ) + len += strlen( cmd[i] ) + 1; + + if( strchr( cmd[i-1], ' ' ) != NULL ) + len ++; + + s = g_new0( char, len + 1 ); + for( i = 0; cmd[i]; i ++ ) + { + if( cmd[i+1] == NULL && strchr( cmd[i], ' ' ) != NULL ) + strcat( s, ":" ); + + strcat( s, cmd[i] ); + + if( cmd[i+1] ) + strcat( s, " " ); + } + strcat( s, "\r\n" ); + + write( global.listen_socket, s, len ); + } +} |