[0431ea1] | 1 | /********************************************************************\ |
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| 2 | * BitlBee -- An IRC to other IM-networks gateway * |
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| 3 | * * |
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[54879ab] | 4 | * Copyright 2002-2006 Wilmer van der Gaast and others * |
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[0431ea1] | 5 | \********************************************************************/ |
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| 6 | |
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| 7 | /* IPC - communication between BitlBee processes */ |
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| 8 | |
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| 9 | /* |
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| 10 | This program is free software; you can redistribute it and/or modify |
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| 11 | it under the terms of the GNU General Public License as published by |
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| 12 | the Free Software Foundation; either version 2 of the License, or |
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| 13 | (at your option) any later version. |
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| 14 | |
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| 15 | This program is distributed in the hope that it will be useful, |
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| 16 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
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| 17 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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| 18 | GNU General Public License for more details. |
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| 19 | |
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| 20 | You should have received a copy of the GNU General Public License with |
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| 21 | the Debian GNU/Linux distribution in /usr/share/common-licenses/GPL; |
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| 22 | if not, write to the Free Software Foundation, Inc., 59 Temple Place, |
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| 23 | Suite 330, Boston, MA 02111-1307 USA |
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| 24 | */ |
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| 25 | |
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| 26 | #define BITLBEE_CORE |
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| 27 | #include "bitlbee.h" |
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| 28 | #include "ipc.h" |
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| 29 | #include "commands.h" |
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[6dff9d4] | 30 | #ifndef _WIN32 |
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| 31 | #include <sys/un.h> |
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| 32 | #endif |
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[0431ea1] | 33 | |
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| 34 | GSList *child_list = NULL; |
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[0b09da0] | 35 | static int ipc_child_recv_fd = -1; |
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[74c119d] | 36 | |
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[c5bff81] | 37 | static void ipc_master_takeover_fail( struct bitlbee_child *child, gboolean both ); |
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| 38 | static gboolean ipc_send_fd( int fd, int send_fd ); |
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| 39 | |
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[f73b969] | 40 | static void ipc_master_cmd_client( irc_t *data, char **cmd ) |
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[2face62] | 41 | { |
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[5e713f6] | 42 | /* Normally data points at an irc_t block, but for the IPC master |
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| 43 | this is different. We think this scary cast is better than |
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| 44 | creating a new command_t structure, just to make the compiler |
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| 45 | happy. */ |
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[2face62] | 46 | struct bitlbee_child *child = (void*) data; |
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| 47 | |
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[54879ab] | 48 | if( child && cmd[1] ) |
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[bd9b00f] | 49 | { |
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| 50 | child->host = g_strdup( cmd[1] ); |
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| 51 | child->nick = g_strdup( cmd[2] ); |
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| 52 | child->realname = g_strdup( cmd[3] ); |
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| 53 | } |
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[2face62] | 54 | |
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[debe871] | 55 | /* CLIENT == On initial connects, HELLO is after /RESTARTs. */ |
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[54879ab] | 56 | if( g_strcasecmp( cmd[0], "CLIENT" ) == 0 ) |
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| 57 | ipc_to_children_str( "OPERMSG :Client connecting (PID=%d): %s@%s (%s)\r\n", |
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[52744f8] | 58 | (int) ( child ? child->pid : -1 ), cmd[2], cmd[1], cmd[3] ); |
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[2face62] | 59 | } |
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| 60 | |
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[debe871] | 61 | static void ipc_master_cmd_nick( irc_t *data, char **cmd ) |
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| 62 | { |
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| 63 | struct bitlbee_child *child = (void*) data; |
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| 64 | |
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| 65 | if( child && cmd[1] ) |
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| 66 | { |
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| 67 | g_free( child->nick ); |
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| 68 | child->nick = g_strdup( cmd[1] ); |
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| 69 | } |
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| 70 | } |
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| 71 | |
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[f73b969] | 72 | static void ipc_master_cmd_die( irc_t *data, char **cmd ) |
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[0431ea1] | 73 | { |
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[74c119d] | 74 | if( global.conf->runmode == RUNMODE_FORKDAEMON ) |
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| 75 | ipc_to_children_str( "DIE\r\n" ); |
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| 76 | |
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[ba9edaa] | 77 | bitlbee_shutdown( NULL, -1, 0 ); |
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[0431ea1] | 78 | } |
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| 79 | |
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[565a1ea] | 80 | static void ipc_master_cmd_deaf( irc_t *data, char **cmd ) |
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| 81 | { |
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| 82 | if( global.conf->runmode == RUNMODE_DAEMON ) |
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| 83 | { |
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| 84 | b_event_remove( global.listen_watch_source_id ); |
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| 85 | close( global.listen_socket ); |
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| 86 | |
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| 87 | global.listen_socket = global.listen_watch_source_id = -1; |
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| 88 | |
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| 89 | ipc_to_children_str( "OPERMSG :Closed listening socket, waiting " |
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| 90 | "for all users to disconnect." ); |
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| 91 | } |
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| 92 | else |
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| 93 | { |
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| 94 | ipc_to_children_str( "OPERMSG :The DEAF command only works in " |
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| 95 | "normal daemon mode. Try DIE instead." ); |
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| 96 | } |
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| 97 | } |
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| 98 | |
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[f73b969] | 99 | void ipc_master_cmd_rehash( irc_t *data, char **cmd ) |
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[0431ea1] | 100 | { |
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[f4a5940] | 101 | runmode_t oldmode; |
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| 102 | |
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| 103 | oldmode = global.conf->runmode; |
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| 104 | |
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| 105 | g_free( global.conf ); |
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| 106 | global.conf = conf_load( 0, NULL ); |
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| 107 | |
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| 108 | if( global.conf->runmode != oldmode ) |
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| 109 | { |
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| 110 | log_message( LOGLVL_WARNING, "Can't change RunMode setting at runtime, restoring original setting" ); |
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| 111 | global.conf->runmode = oldmode; |
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| 112 | } |
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| 113 | |
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| 114 | if( global.conf->runmode == RUNMODE_FORKDAEMON ) |
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| 115 | ipc_to_children( cmd ); |
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[0431ea1] | 116 | } |
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| 117 | |
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[54879ab] | 118 | void ipc_master_cmd_restart( irc_t *data, char **cmd ) |
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| 119 | { |
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| 120 | if( global.conf->runmode != RUNMODE_FORKDAEMON ) |
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| 121 | { |
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| 122 | /* Tell child that this is unsupported. */ |
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| 123 | return; |
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| 124 | } |
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| 125 | |
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| 126 | global.restart = -1; |
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[ba9edaa] | 127 | bitlbee_shutdown( NULL, -1, 0 ); |
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[54879ab] | 128 | } |
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| 129 | |
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[6c2404e] | 130 | void ipc_master_cmd_identify( irc_t *data, char **cmd ) |
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| 131 | { |
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| 132 | struct bitlbee_child *child = (void*) data, *old = NULL; |
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[0b09da0] | 133 | char *resp; |
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[6c2404e] | 134 | GSList *l; |
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| 135 | |
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| 136 | if( strcmp( child->nick, cmd[1] ) != 0 ) |
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| 137 | return; |
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| 138 | |
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| 139 | g_free( child->password ); |
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| 140 | child->password = g_strdup( cmd[2] ); |
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| 141 | |
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| 142 | for( l = child_list; l; l = l->next ) |
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| 143 | { |
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| 144 | old = l->data; |
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| 145 | if( nick_cmp( old->nick, child->nick ) == 0 && child != old && |
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[0b09da0] | 146 | old->password && strcmp( old->password, child->password ) == 0 ) |
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[6c2404e] | 147 | break; |
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| 148 | } |
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| 149 | |
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[f545372] | 150 | if( l && !child->to_child && !old->to_child ) |
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[0b09da0] | 151 | { |
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| 152 | resp = "TAKEOVER INIT\r\n"; |
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[f545372] | 153 | child->to_child = old; |
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| 154 | old->to_child = child; |
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[0b09da0] | 155 | } |
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| 156 | else |
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| 157 | { |
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| 158 | /* Won't need the fd since we can't send it anywhere. */ |
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[c5bff81] | 159 | closesocket( child->to_fd ); |
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[0b09da0] | 160 | child->to_fd = -1; |
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| 161 | resp = "TAKEOVER NO\r\n"; |
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| 162 | } |
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| 163 | |
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| 164 | if( write( child->ipc_fd, resp, strlen( resp ) ) != strlen( resp ) ) |
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| 165 | ipc_master_free_one( child ); |
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| 166 | } |
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| 167 | |
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| 168 | |
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| 169 | void ipc_master_cmd_takeover( irc_t *data, char **cmd ) |
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| 170 | { |
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| 171 | struct bitlbee_child *child = (void*) data; |
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[f545372] | 172 | char *fwd = NULL; |
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[0b09da0] | 173 | |
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[e92c4f4] | 174 | /* Normal daemon mode doesn't keep these and has simplified code for |
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| 175 | takeovers. */ |
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| 176 | if( child == NULL ) |
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| 177 | return; |
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| 178 | |
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[c5bff81] | 179 | if( child->to_child == NULL || |
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| 180 | g_slist_find( child_list, child->to_child ) == NULL ) |
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| 181 | return ipc_master_takeover_fail( child, FALSE ); |
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| 182 | |
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[0b09da0] | 183 | if( strcmp( cmd[1], "AUTH" ) == 0 ) |
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| 184 | { |
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[c5bff81] | 185 | /* New connection -> Master */ |
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[0b09da0] | 186 | if( child->to_child && |
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| 187 | child->nick && child->to_child->nick && cmd[2] && |
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| 188 | child->password && child->to_child->password && cmd[3] && |
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| 189 | strcmp( child->nick, child->to_child->nick ) == 0 && |
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| 190 | strcmp( child->nick, cmd[2] ) == 0 && |
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| 191 | strcmp( child->password, child->to_child->password ) == 0 && |
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| 192 | strcmp( child->password, cmd[3] ) == 0 ) |
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| 193 | { |
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| 194 | ipc_send_fd( child->to_child->ipc_fd, child->to_fd ); |
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| 195 | |
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[f545372] | 196 | fwd = irc_build_line( cmd ); |
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| 197 | if( write( child->to_child->ipc_fd, fwd, strlen( fwd ) ) != strlen( fwd ) ) |
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[0b09da0] | 198 | ipc_master_free_one( child ); |
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[f545372] | 199 | g_free( fwd ); |
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[0b09da0] | 200 | } |
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[c5bff81] | 201 | else |
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| 202 | return ipc_master_takeover_fail( child, TRUE ); |
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[0b09da0] | 203 | } |
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[f545372] | 204 | else if( strcmp( cmd[1], "DONE" ) == 0 || strcmp( cmd[1], "FAIL" ) == 0 ) |
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| 205 | { |
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[c5bff81] | 206 | /* Old connection -> Master */ |
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[f545372] | 207 | int fd; |
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| 208 | |
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| 209 | /* The copy was successful (or not), we don't need it anymore. */ |
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[c5bff81] | 210 | closesocket( child->to_fd ); |
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[f545372] | 211 | child->to_fd = -1; |
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| 212 | |
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| 213 | /* Pass it through to the other party, and flush all state. */ |
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| 214 | fwd = irc_build_line( cmd ); |
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| 215 | fd = child->to_child->ipc_fd; |
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| 216 | child->to_child->to_child = NULL; |
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| 217 | child->to_child = NULL; |
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| 218 | if( write( fd, fwd, strlen( fwd ) ) != strlen( fwd ) ) |
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| 219 | ipc_master_free_one( child ); |
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| 220 | g_free( fwd ); |
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| 221 | } |
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[6c2404e] | 222 | } |
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| 223 | |
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[0431ea1] | 224 | static const command_t ipc_master_commands[] = { |
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[2face62] | 225 | { "client", 3, ipc_master_cmd_client, 0 }, |
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[54879ab] | 226 | { "hello", 0, ipc_master_cmd_client, 0 }, |
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[debe871] | 227 | { "nick", 1, ipc_master_cmd_nick, 0 }, |
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[0431ea1] | 228 | { "die", 0, ipc_master_cmd_die, 0 }, |
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[565a1ea] | 229 | { "deaf", 0, ipc_master_cmd_deaf, 0 }, |
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[f4a5940] | 230 | { "wallops", 1, NULL, IPC_CMD_TO_CHILDREN }, |
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[dfc8a46] | 231 | { "wall", 1, NULL, IPC_CMD_TO_CHILDREN }, |
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[2face62] | 232 | { "opermsg", 1, NULL, IPC_CMD_TO_CHILDREN }, |
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[f4a5940] | 233 | { "rehash", 0, ipc_master_cmd_rehash, 0 }, |
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[48721c3] | 234 | { "kill", 2, NULL, IPC_CMD_TO_CHILDREN }, |
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[54879ab] | 235 | { "restart", 0, ipc_master_cmd_restart, 0 }, |
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[6c2404e] | 236 | { "identify", 2, ipc_master_cmd_identify, 0 }, |
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[0b09da0] | 237 | { "takeover", 1, ipc_master_cmd_takeover, 0 }, |
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[0431ea1] | 238 | { NULL } |
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| 239 | }; |
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| 240 | |
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[74c119d] | 241 | |
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[f73b969] | 242 | static void ipc_child_cmd_die( irc_t *irc, char **cmd ) |
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[74c119d] | 243 | { |
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[87de505] | 244 | irc_abort( irc, 0, "Shutdown requested by operator" ); |
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[74c119d] | 245 | } |
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| 246 | |
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[f73b969] | 247 | static void ipc_child_cmd_wallops( irc_t *irc, char **cmd ) |
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[0431ea1] | 248 | { |
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[3af70b0] | 249 | if( !( irc->status & USTATUS_LOGGED_IN ) ) |
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[f73b969] | 250 | return; |
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[daa9e02] | 251 | |
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[0431ea1] | 252 | if( strchr( irc->umode, 'w' ) ) |
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[3ddb7477] | 253 | irc_write( irc, ":%s WALLOPS :%s", irc->root->host, cmd[1] ); |
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[e0ca412] | 254 | } |
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| 255 | |
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[dfc8a46] | 256 | static void ipc_child_cmd_wall( irc_t *irc, char **cmd ) |
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[e0ca412] | 257 | { |
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[3af70b0] | 258 | if( !( irc->status & USTATUS_LOGGED_IN ) ) |
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[f73b969] | 259 | return; |
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[daa9e02] | 260 | |
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[74c119d] | 261 | if( strchr( irc->umode, 's' ) ) |
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[3ddb7477] | 262 | irc_write( irc, ":%s NOTICE %s :%s", irc->root->host, irc->user->nick, cmd[1] ); |
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[0431ea1] | 263 | } |
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| 264 | |
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[f73b969] | 265 | static void ipc_child_cmd_opermsg( irc_t *irc, char **cmd ) |
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[2face62] | 266 | { |
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[3af70b0] | 267 | if( !( irc->status & USTATUS_LOGGED_IN ) ) |
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[f73b969] | 268 | return; |
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[2face62] | 269 | |
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| 270 | if( strchr( irc->umode, 'o' ) ) |
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[3ddb7477] | 271 | irc_write( irc, ":%s NOTICE %s :*** OperMsg *** %s", irc->root->host, irc->user->nick, cmd[1] ); |
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[2face62] | 272 | } |
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| 273 | |
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[f73b969] | 274 | static void ipc_child_cmd_rehash( irc_t *irc, char **cmd ) |
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[f4a5940] | 275 | { |
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| 276 | runmode_t oldmode; |
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| 277 | |
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| 278 | oldmode = global.conf->runmode; |
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| 279 | |
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| 280 | g_free( global.conf ); |
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| 281 | global.conf = conf_load( 0, NULL ); |
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| 282 | |
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| 283 | global.conf->runmode = oldmode; |
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| 284 | } |
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| 285 | |
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[f73b969] | 286 | static void ipc_child_cmd_kill( irc_t *irc, char **cmd ) |
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[48721c3] | 287 | { |
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[3af70b0] | 288 | if( !( irc->status & USTATUS_LOGGED_IN ) ) |
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[f73b969] | 289 | return; |
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[48721c3] | 290 | |
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[3ddb7477] | 291 | if( nick_cmp( cmd[1], irc->user->nick ) != 0 ) |
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[f73b969] | 292 | return; /* It's not for us. */ |
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[48721c3] | 293 | |
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[3ddb7477] | 294 | irc_write( irc, ":%s!%s@%s KILL %s :%s", irc->root->nick, irc->root->nick, irc->root->host, irc->user->nick, cmd[2] ); |
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[f73b969] | 295 | irc_abort( irc, 0, "Killed by operator: %s", cmd[2] ); |
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[48721c3] | 296 | } |
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| 297 | |
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[54879ab] | 298 | static void ipc_child_cmd_hello( irc_t *irc, char **cmd ) |
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| 299 | { |
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[3af70b0] | 300 | if( !( irc->status & USTATUS_LOGGED_IN ) ) |
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[54879ab] | 301 | ipc_to_master_str( "HELLO\r\n" ); |
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| 302 | else |
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[3ddb7477] | 303 | ipc_to_master_str( "HELLO %s %s :%s\r\n", irc->user->host, irc->user->nick, irc->user->fullname ); |
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[54879ab] | 304 | } |
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| 305 | |
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[f545372] | 306 | static void ipc_child_cmd_takeover_yes( void *data ); |
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| 307 | static void ipc_child_cmd_takeover_no( void *data ); |
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| 308 | |
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[0b09da0] | 309 | static void ipc_child_cmd_takeover( irc_t *irc, char **cmd ) |
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| 310 | { |
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| 311 | if( strcmp( cmd[1], "NO" ) == 0 ) |
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| 312 | { |
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[f545372] | 313 | /* Master->New connection */ |
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[0b09da0] | 314 | /* No takeover, finish the login. */ |
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| 315 | } |
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| 316 | else if( strcmp( cmd[1], "INIT" ) == 0 ) |
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| 317 | { |
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[f545372] | 318 | /* Master->New connection */ |
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| 319 | /* Offer to take over the old session, unless for some reason |
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| 320 | we're already logging into IM connections. */ |
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| 321 | if( irc->login_source_id != -1 ) |
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| 322 | query_add( irc, NULL, |
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| 323 | "You're already connected to this server. " |
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| 324 | "Would you like to take over this session?", |
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| 325 | ipc_child_cmd_takeover_yes, |
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| 326 | ipc_child_cmd_takeover_no, irc ); |
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[0b09da0] | 327 | |
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[f545372] | 328 | /* This one's going to connect to accounts, avoid that. */ |
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| 329 | b_event_remove( irc->login_source_id ); |
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| 330 | irc->login_source_id = -1; |
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[0b09da0] | 331 | } |
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| 332 | else if( strcmp( cmd[1], "AUTH" ) == 0 ) |
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| 333 | { |
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[f545372] | 334 | /* Master->Old connection */ |
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[0b09da0] | 335 | if( irc->password && cmd[2] && cmd[3] && |
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| 336 | ipc_child_recv_fd != -1 && |
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| 337 | strcmp( irc->user->nick, cmd[2] ) == 0 && |
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| 338 | strcmp( irc->password, cmd[3] ) == 0 ) |
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| 339 | { |
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[f1c2b21] | 340 | irc_switch_fd( irc, ipc_child_recv_fd ); |
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| 341 | irc_sync( irc ); |
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[f545372] | 342 | irc_usermsg( irc, "You've successfully taken over your old session" ); |
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[f1c2b21] | 343 | ipc_child_recv_fd = -1; |
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[f545372] | 344 | |
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| 345 | ipc_to_master_str( "TAKEOVER DONE\r\n" ); |
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[0b09da0] | 346 | } |
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[f545372] | 347 | else |
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| 348 | { |
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| 349 | ipc_to_master_str( "TAKEOVER FAIL\r\n" ); |
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| 350 | } |
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| 351 | } |
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| 352 | else if( strcmp( cmd[1], "DONE" ) == 0 ) |
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| 353 | { |
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| 354 | /* Master->New connection (now taken over by old process) */ |
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| 355 | irc_free( irc ); |
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| 356 | } |
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| 357 | else if( strcmp( cmd[1], "FAIL" ) == 0 ) |
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| 358 | { |
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| 359 | /* Master->New connection */ |
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| 360 | irc_usermsg( irc, "Could not take over old session" ); |
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[0b09da0] | 361 | } |
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| 362 | } |
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| 363 | |
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[f545372] | 364 | static void ipc_child_cmd_takeover_yes( void *data ) |
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| 365 | { |
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[e92c4f4] | 366 | irc_t *irc = data, *old = NULL; |
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| 367 | char *to_auth[] = { "TAKEOVER", "AUTH", irc->user->nick, irc->password, NULL }; |
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[f545372] | 368 | |
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| 369 | /* Master->New connection */ |
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| 370 | ipc_to_master_str( "TAKEOVER AUTH %s :%s\r\n", |
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| 371 | irc->user->nick, irc->password ); |
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| 372 | |
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[e92c4f4] | 373 | if( global.conf->runmode == RUNMODE_DAEMON ) |
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| 374 | { |
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| 375 | GSList *l; |
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| 376 | |
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| 377 | for( l = irc_connection_list; l; l = l->next ) |
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| 378 | { |
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| 379 | old = l->data; |
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| 380 | |
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| 381 | if( irc != old && |
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| 382 | irc->user->nick && old->user->nick && |
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| 383 | irc->password && old->password && |
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| 384 | strcmp( irc->user->nick, old->user->nick ) == 0 && |
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| 385 | strcmp( irc->password, old->password ) == 0 ) |
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| 386 | break; |
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| 387 | } |
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| 388 | if( l == NULL ) |
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| 389 | { |
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| 390 | to_auth[1] = "FAIL"; |
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| 391 | ipc_child_cmd_takeover( irc, to_auth ); |
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| 392 | return; |
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| 393 | } |
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| 394 | } |
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| 395 | |
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[f545372] | 396 | /* Drop credentials, we'll shut down soon and shouldn't overwrite |
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| 397 | any settings. */ |
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| 398 | irc_usermsg( irc, "Trying to take over existing session" ); |
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| 399 | |
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[e92c4f4] | 400 | irc_desync( irc ); |
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| 401 | |
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| 402 | if( old ) |
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| 403 | { |
---|
| 404 | ipc_child_recv_fd = dup( irc->fd ); |
---|
| 405 | ipc_child_cmd_takeover( old, to_auth ); |
---|
| 406 | } |
---|
| 407 | |
---|
[f545372] | 408 | /* TODO: irc_setpass() should do all of this. */ |
---|
| 409 | irc_setpass( irc, NULL ); |
---|
| 410 | irc->status &= ~USTATUS_IDENTIFIED; |
---|
| 411 | irc_umode_set( irc, "-R", 1 ); |
---|
| 412 | |
---|
[e92c4f4] | 413 | if( old ) |
---|
| 414 | { |
---|
| 415 | irc->status |= USTATUS_SHUTDOWN; |
---|
| 416 | irc_abort( irc, FALSE, NULL ); |
---|
| 417 | } |
---|
[f545372] | 418 | } |
---|
| 419 | |
---|
| 420 | static void ipc_child_cmd_takeover_no( void *data ) |
---|
| 421 | { |
---|
| 422 | ipc_to_master_str( "TAKEOVER NO\r\n" ); |
---|
| 423 | cmd_identify_finish( data, 0, 0 ); |
---|
| 424 | } |
---|
| 425 | |
---|
[0431ea1] | 426 | static const command_t ipc_child_commands[] = { |
---|
[74c119d] | 427 | { "die", 0, ipc_child_cmd_die, 0 }, |
---|
| 428 | { "wallops", 1, ipc_child_cmd_wallops, 0 }, |
---|
[dfc8a46] | 429 | { "wall", 1, ipc_child_cmd_wall, 0 }, |
---|
[2face62] | 430 | { "opermsg", 1, ipc_child_cmd_opermsg, 0 }, |
---|
[48721c3] | 431 | { "rehash", 0, ipc_child_cmd_rehash, 0 }, |
---|
| 432 | { "kill", 2, ipc_child_cmd_kill, 0 }, |
---|
[54879ab] | 433 | { "hello", 0, ipc_child_cmd_hello, 0 }, |
---|
[0b09da0] | 434 | { "takeover", 1, ipc_child_cmd_takeover, 0 }, |
---|
[0431ea1] | 435 | { NULL } |
---|
| 436 | }; |
---|
| 437 | |
---|
[6c2404e] | 438 | gboolean ipc_child_identify( irc_t *irc ) |
---|
| 439 | { |
---|
| 440 | if( global.conf->runmode == RUNMODE_FORKDAEMON ) |
---|
| 441 | { |
---|
| 442 | if( !ipc_send_fd( global.listen_socket, irc->fd ) ) |
---|
| 443 | ipc_child_disable(); |
---|
| 444 | |
---|
| 445 | ipc_to_master_str( "IDENTIFY %s :%s\r\n", irc->user->nick, irc->password ); |
---|
| 446 | |
---|
| 447 | return TRUE; |
---|
| 448 | } |
---|
[e92c4f4] | 449 | else if( global.conf->runmode == RUNMODE_DAEMON ) |
---|
| 450 | { |
---|
| 451 | GSList *l; |
---|
| 452 | irc_t *old; |
---|
| 453 | char *to_init[] = { "TAKEOVER", "INIT", NULL }; |
---|
| 454 | |
---|
| 455 | for( l = irc_connection_list; l; l = l->next ) |
---|
| 456 | { |
---|
| 457 | old = l->data; |
---|
| 458 | |
---|
| 459 | if( irc != old && |
---|
| 460 | irc->user->nick && old->user->nick && |
---|
| 461 | irc->password && old->password && |
---|
| 462 | strcmp( irc->user->nick, old->user->nick ) == 0 && |
---|
| 463 | strcmp( irc->password, old->password ) == 0 ) |
---|
| 464 | break; |
---|
| 465 | } |
---|
| 466 | if( l == NULL ) |
---|
| 467 | return FALSE; |
---|
| 468 | |
---|
| 469 | ipc_child_cmd_takeover( irc, to_init ); |
---|
| 470 | |
---|
| 471 | return TRUE; |
---|
| 472 | } |
---|
[6c2404e] | 473 | else |
---|
| 474 | return FALSE; |
---|
| 475 | } |
---|
[74c119d] | 476 | |
---|
[c5bff81] | 477 | static void ipc_master_takeover_fail( struct bitlbee_child *child, gboolean both ) |
---|
| 478 | { |
---|
| 479 | if( child == NULL || g_slist_find( child_list, child ) == NULL ) |
---|
| 480 | return; |
---|
| 481 | |
---|
| 482 | if( both && child->to_child != NULL ) |
---|
| 483 | ipc_master_takeover_fail( child->to_child, FALSE ); |
---|
| 484 | |
---|
| 485 | if( child->to_fd > -1 ) |
---|
| 486 | { |
---|
| 487 | /* Send this error only to the new connection, which can be |
---|
| 488 | recognised by to_fd being set. */ |
---|
| 489 | if( write( child->ipc_fd, "TAKEOVER FAIL\r\n", 15 ) != 15 ) |
---|
| 490 | { |
---|
| 491 | ipc_master_free_one( child ); |
---|
| 492 | return; |
---|
| 493 | } |
---|
| 494 | close( child->to_fd ); |
---|
| 495 | child->to_fd = -1; |
---|
| 496 | } |
---|
| 497 | child->to_child = NULL; |
---|
| 498 | } |
---|
| 499 | |
---|
[0431ea1] | 500 | static void ipc_command_exec( void *data, char **cmd, const command_t *commands ) |
---|
| 501 | { |
---|
[f1d38f2] | 502 | int i, j; |
---|
[0431ea1] | 503 | |
---|
| 504 | if( !cmd[0] ) |
---|
| 505 | return; |
---|
| 506 | |
---|
| 507 | for( i = 0; commands[i].command; i ++ ) |
---|
| 508 | if( g_strcasecmp( commands[i].command, cmd[0] ) == 0 ) |
---|
| 509 | { |
---|
[f1d38f2] | 510 | /* There is no typo in this line: */ |
---|
| 511 | for( j = 1; cmd[j]; j ++ ); j --; |
---|
| 512 | |
---|
| 513 | if( j < commands[i].required_parameters ) |
---|
| 514 | break; |
---|
| 515 | |
---|
[f4a5940] | 516 | if( commands[i].flags & IPC_CMD_TO_CHILDREN ) |
---|
| 517 | ipc_to_children( cmd ); |
---|
| 518 | else |
---|
| 519 | commands[i].execute( data, cmd ); |
---|
| 520 | |
---|
[f1d38f2] | 521 | break; |
---|
[0431ea1] | 522 | } |
---|
| 523 | } |
---|
| 524 | |
---|
[da7b484] | 525 | /* Return just one line. Returns NULL if something broke, an empty string |
---|
| 526 | on temporary "errors" (EAGAIN and friends). */ |
---|
[6c2404e] | 527 | static char *ipc_readline( int fd, int *recv_fd ) |
---|
[0431ea1] | 528 | { |
---|
[6c2404e] | 529 | struct msghdr msg; |
---|
| 530 | struct iovec iov; |
---|
| 531 | char ccmsg[CMSG_SPACE(sizeof(recv_fd))]; |
---|
| 532 | struct cmsghdr *cmsg; |
---|
[da7b484] | 533 | char buf[513], *eol; |
---|
[0431ea1] | 534 | int size; |
---|
| 535 | |
---|
| 536 | /* Because this is internal communication, it should be pretty safe |
---|
| 537 | to just peek at the message, find its length (by searching for the |
---|
| 538 | end-of-line) and then just read that message. With internal |
---|
| 539 | sockets and limites message length, messages should always be |
---|
| 540 | complete. Saves us quite a lot of code and buffering. */ |
---|
[da7b484] | 541 | size = recv( fd, buf, sizeof( buf ) - 1, MSG_PEEK ); |
---|
[0431ea1] | 542 | if( size == 0 || ( size < 0 && !sockerr_again() ) ) |
---|
| 543 | return NULL; |
---|
[1ea13be] | 544 | else if( size < 0 ) /* && sockerr_again() */ |
---|
| 545 | return( g_strdup( "" ) ); |
---|
[0431ea1] | 546 | else |
---|
| 547 | buf[size] = 0; |
---|
| 548 | |
---|
[da7b484] | 549 | if( ( eol = strstr( buf, "\r\n" ) ) == NULL ) |
---|
[0431ea1] | 550 | return NULL; |
---|
| 551 | else |
---|
| 552 | size = eol - buf + 2; |
---|
| 553 | |
---|
[6c2404e] | 554 | iov.iov_base = buf; |
---|
| 555 | iov.iov_len = size; |
---|
| 556 | |
---|
| 557 | memset( &msg, 0, sizeof( msg ) ); |
---|
| 558 | msg.msg_iov = &iov; |
---|
| 559 | msg.msg_iovlen = 1; |
---|
| 560 | msg.msg_control = ccmsg; |
---|
| 561 | msg.msg_controllen = sizeof( ccmsg ); |
---|
| 562 | |
---|
| 563 | if( recvmsg( fd, &msg, 0 ) != size ) |
---|
[0431ea1] | 564 | return NULL; |
---|
[6c2404e] | 565 | |
---|
| 566 | if( recv_fd ) |
---|
| 567 | for( cmsg = CMSG_FIRSTHDR( &msg ); cmsg; cmsg = CMSG_NXTHDR( &msg, cmsg ) ) |
---|
| 568 | if( cmsg->cmsg_level == SOL_SOCKET && cmsg->cmsg_type == SCM_RIGHTS ) |
---|
| 569 | { |
---|
| 570 | /* Getting more than one shouldn't happen but if it does, |
---|
| 571 | make sure we don't leave them around. */ |
---|
| 572 | if( *recv_fd != -1 ) |
---|
| 573 | close( *recv_fd ); |
---|
| 574 | |
---|
| 575 | *recv_fd = *(int*) CMSG_DATA( cmsg ); |
---|
[e92c4f4] | 576 | /* |
---|
[0b09da0] | 577 | fprintf( stderr, "pid %d received fd %d\n", (int) getpid(), *recv_fd ); |
---|
[e92c4f4] | 578 | */ |
---|
[6c2404e] | 579 | } |
---|
| 580 | |
---|
[e92c4f4] | 581 | /* |
---|
[0b09da0] | 582 | fprintf( stderr, "pid %d received: %s", (int) getpid(), buf ); |
---|
[e92c4f4] | 583 | */ |
---|
[6c2404e] | 584 | return g_strndup( buf, size - 2 ); |
---|
[0431ea1] | 585 | } |
---|
| 586 | |
---|
[ba9edaa] | 587 | gboolean ipc_master_read( gpointer data, gint source, b_input_condition cond ) |
---|
[0431ea1] | 588 | { |
---|
[6c2404e] | 589 | struct bitlbee_child *child = data; |
---|
[0431ea1] | 590 | char *buf, **cmd; |
---|
| 591 | |
---|
[6c2404e] | 592 | if( ( buf = ipc_readline( source, &child->to_fd ) ) ) |
---|
[0431ea1] | 593 | { |
---|
| 594 | cmd = irc_parse_line( buf ); |
---|
| 595 | if( cmd ) |
---|
[edc767b] | 596 | { |
---|
[6c2404e] | 597 | ipc_command_exec( child, cmd, ipc_master_commands ); |
---|
[edc767b] | 598 | g_free( cmd ); |
---|
| 599 | } |
---|
| 600 | g_free( buf ); |
---|
[0431ea1] | 601 | } |
---|
| 602 | else |
---|
| 603 | { |
---|
[171ef85] | 604 | ipc_master_free_fd( source ); |
---|
[0431ea1] | 605 | } |
---|
[ba9edaa] | 606 | |
---|
| 607 | return TRUE; |
---|
[0431ea1] | 608 | } |
---|
| 609 | |
---|
[ba9edaa] | 610 | gboolean ipc_child_read( gpointer data, gint source, b_input_condition cond ) |
---|
[0431ea1] | 611 | { |
---|
| 612 | char *buf, **cmd; |
---|
| 613 | |
---|
[0b09da0] | 614 | if( ( buf = ipc_readline( source, &ipc_child_recv_fd ) ) ) |
---|
[0431ea1] | 615 | { |
---|
| 616 | cmd = irc_parse_line( buf ); |
---|
| 617 | if( cmd ) |
---|
[edc767b] | 618 | { |
---|
[0431ea1] | 619 | ipc_command_exec( data, cmd, ipc_child_commands ); |
---|
[edc767b] | 620 | g_free( cmd ); |
---|
| 621 | } |
---|
| 622 | g_free( buf ); |
---|
[0431ea1] | 623 | } |
---|
| 624 | else |
---|
| 625 | { |
---|
[171ef85] | 626 | ipc_child_disable(); |
---|
[0431ea1] | 627 | } |
---|
[ba9edaa] | 628 | |
---|
| 629 | return TRUE; |
---|
[0431ea1] | 630 | } |
---|
| 631 | |
---|
| 632 | void ipc_to_master( char **cmd ) |
---|
| 633 | { |
---|
| 634 | if( global.conf->runmode == RUNMODE_FORKDAEMON ) |
---|
| 635 | { |
---|
[74c119d] | 636 | char *s = irc_build_line( cmd ); |
---|
[2face62] | 637 | ipc_to_master_str( "%s", s ); |
---|
[f4a5940] | 638 | g_free( s ); |
---|
| 639 | } |
---|
| 640 | else if( global.conf->runmode == RUNMODE_DAEMON ) |
---|
| 641 | { |
---|
| 642 | ipc_command_exec( NULL, cmd, ipc_master_commands ); |
---|
| 643 | } |
---|
| 644 | } |
---|
| 645 | |
---|
[2face62] | 646 | void ipc_to_master_str( char *format, ... ) |
---|
[f4a5940] | 647 | { |
---|
[2face62] | 648 | char *msg_buf; |
---|
| 649 | va_list params; |
---|
| 650 | |
---|
| 651 | va_start( params, format ); |
---|
| 652 | msg_buf = g_strdup_vprintf( format, params ); |
---|
| 653 | va_end( params ); |
---|
| 654 | |
---|
| 655 | if( strlen( msg_buf ) > 512 ) |
---|
| 656 | { |
---|
| 657 | /* Don't send it, it's too long... */ |
---|
| 658 | } |
---|
| 659 | else if( global.conf->runmode == RUNMODE_FORKDAEMON ) |
---|
[f4a5940] | 660 | { |
---|
[171ef85] | 661 | if( global.listen_socket >= 0 ) |
---|
| 662 | if( write( global.listen_socket, msg_buf, strlen( msg_buf ) ) <= 0 ) |
---|
| 663 | ipc_child_disable(); |
---|
[f4a5940] | 664 | } |
---|
| 665 | else if( global.conf->runmode == RUNMODE_DAEMON ) |
---|
| 666 | { |
---|
[bd9b00f] | 667 | char **cmd, *s; |
---|
| 668 | |
---|
| 669 | if( ( s = strchr( msg_buf, '\r' ) ) ) |
---|
| 670 | *s = 0; |
---|
[f4a5940] | 671 | |
---|
[2face62] | 672 | cmd = irc_parse_line( msg_buf ); |
---|
[f4a5940] | 673 | ipc_command_exec( NULL, cmd, ipc_master_commands ); |
---|
| 674 | g_free( cmd ); |
---|
[74c119d] | 675 | } |
---|
[2face62] | 676 | |
---|
| 677 | g_free( msg_buf ); |
---|
[74c119d] | 678 | } |
---|
| 679 | |
---|
| 680 | void ipc_to_children( char **cmd ) |
---|
| 681 | { |
---|
| 682 | if( global.conf->runmode == RUNMODE_FORKDAEMON ) |
---|
| 683 | { |
---|
| 684 | char *msg_buf = irc_build_line( cmd ); |
---|
[2face62] | 685 | ipc_to_children_str( "%s", msg_buf ); |
---|
[74c119d] | 686 | g_free( msg_buf ); |
---|
| 687 | } |
---|
[f4a5940] | 688 | else if( global.conf->runmode == RUNMODE_DAEMON ) |
---|
| 689 | { |
---|
| 690 | GSList *l; |
---|
| 691 | |
---|
| 692 | for( l = irc_connection_list; l; l = l->next ) |
---|
| 693 | ipc_command_exec( l->data, cmd, ipc_child_commands ); |
---|
| 694 | } |
---|
[74c119d] | 695 | } |
---|
| 696 | |
---|
[2face62] | 697 | void ipc_to_children_str( char *format, ... ) |
---|
[74c119d] | 698 | { |
---|
[2face62] | 699 | char *msg_buf; |
---|
| 700 | va_list params; |
---|
| 701 | |
---|
| 702 | va_start( params, format ); |
---|
| 703 | msg_buf = g_strdup_vprintf( format, params ); |
---|
| 704 | va_end( params ); |
---|
| 705 | |
---|
| 706 | if( strlen( msg_buf ) > 512 ) |
---|
| 707 | { |
---|
| 708 | /* Don't send it, it's too long... */ |
---|
| 709 | } |
---|
| 710 | else if( global.conf->runmode == RUNMODE_FORKDAEMON ) |
---|
[74c119d] | 711 | { |
---|
| 712 | int msg_len = strlen( msg_buf ); |
---|
[171ef85] | 713 | GSList *l, *next; |
---|
[0431ea1] | 714 | |
---|
[171ef85] | 715 | for( l = child_list; l; l = next ) |
---|
[0431ea1] | 716 | { |
---|
[74c119d] | 717 | struct bitlbee_child *c = l->data; |
---|
[171ef85] | 718 | |
---|
| 719 | next = l->next; |
---|
| 720 | if( write( c->ipc_fd, msg_buf, msg_len ) <= 0 ) |
---|
| 721 | ipc_master_free_one( c ); |
---|
[0431ea1] | 722 | } |
---|
| 723 | } |
---|
[f4a5940] | 724 | else if( global.conf->runmode == RUNMODE_DAEMON ) |
---|
| 725 | { |
---|
[bd9b00f] | 726 | char **cmd, *s; |
---|
| 727 | |
---|
| 728 | if( ( s = strchr( msg_buf, '\r' ) ) ) |
---|
| 729 | *s = 0; |
---|
[f4a5940] | 730 | |
---|
[2face62] | 731 | cmd = irc_parse_line( msg_buf ); |
---|
[f4a5940] | 732 | ipc_to_children( cmd ); |
---|
| 733 | g_free( cmd ); |
---|
| 734 | } |
---|
[2face62] | 735 | |
---|
| 736 | g_free( msg_buf ); |
---|
| 737 | } |
---|
| 738 | |
---|
[6c2404e] | 739 | static gboolean ipc_send_fd( int fd, int send_fd ) |
---|
| 740 | { |
---|
| 741 | struct msghdr msg; |
---|
| 742 | struct iovec iov; |
---|
| 743 | char ccmsg[CMSG_SPACE(sizeof(fd))]; |
---|
| 744 | struct cmsghdr *cmsg; |
---|
| 745 | |
---|
| 746 | memset( &msg, 0, sizeof( msg ) ); |
---|
[c5bff81] | 747 | iov.iov_base = "0x90\r\n"; /* Ja, noppes */ |
---|
[6c2404e] | 748 | iov.iov_len = 6; |
---|
| 749 | msg.msg_iov = &iov; |
---|
| 750 | msg.msg_iovlen = 1; |
---|
| 751 | |
---|
| 752 | msg.msg_control = ccmsg; |
---|
| 753 | msg.msg_controllen = sizeof( ccmsg ); |
---|
| 754 | cmsg = CMSG_FIRSTHDR( &msg ); |
---|
| 755 | cmsg->cmsg_level = SOL_SOCKET; |
---|
| 756 | cmsg->cmsg_type = SCM_RIGHTS; |
---|
| 757 | cmsg->cmsg_len = CMSG_LEN( sizeof( send_fd ) ); |
---|
| 758 | *(int*)CMSG_DATA( cmsg ) = send_fd; |
---|
| 759 | msg.msg_controllen = cmsg->cmsg_len; |
---|
| 760 | |
---|
| 761 | return sendmsg( fd, &msg, 0 ) == 6; |
---|
| 762 | } |
---|
| 763 | |
---|
[2face62] | 764 | void ipc_master_free_one( struct bitlbee_child *c ) |
---|
| 765 | { |
---|
[c5bff81] | 766 | GSList *l; |
---|
| 767 | |
---|
[ba9edaa] | 768 | b_event_remove( c->ipc_inpa ); |
---|
[2face62] | 769 | closesocket( c->ipc_fd ); |
---|
| 770 | |
---|
[6c2404e] | 771 | if( c->to_fd != -1 ) |
---|
| 772 | close( c->to_fd ); |
---|
| 773 | |
---|
[2face62] | 774 | g_free( c->host ); |
---|
| 775 | g_free( c->nick ); |
---|
| 776 | g_free( c->realname ); |
---|
[6c2404e] | 777 | g_free( c->password ); |
---|
[2face62] | 778 | g_free( c ); |
---|
[c5bff81] | 779 | |
---|
| 780 | child_list = g_slist_remove( child_list, c ); |
---|
| 781 | |
---|
| 782 | /* Also, if any child has a reference to this one, remove it. */ |
---|
| 783 | for( l = child_list; l; l = l->next ) |
---|
| 784 | { |
---|
| 785 | struct bitlbee_child *oc = l->data; |
---|
| 786 | |
---|
| 787 | if( oc->to_child == c ) |
---|
| 788 | ipc_master_takeover_fail( oc, FALSE ); |
---|
| 789 | } |
---|
[2face62] | 790 | } |
---|
| 791 | |
---|
[171ef85] | 792 | void ipc_master_free_fd( int fd ) |
---|
| 793 | { |
---|
| 794 | GSList *l; |
---|
| 795 | struct bitlbee_child *c; |
---|
| 796 | |
---|
| 797 | for( l = child_list; l; l = l->next ) |
---|
| 798 | { |
---|
| 799 | c = l->data; |
---|
| 800 | if( c->ipc_fd == fd ) |
---|
| 801 | { |
---|
| 802 | ipc_master_free_one( c ); |
---|
| 803 | break; |
---|
| 804 | } |
---|
| 805 | } |
---|
| 806 | } |
---|
| 807 | |
---|
[2face62] | 808 | void ipc_master_free_all() |
---|
| 809 | { |
---|
[c5bff81] | 810 | while( child_list ) |
---|
| 811 | ipc_master_free_one( child_list->data ); |
---|
[0431ea1] | 812 | } |
---|
[54879ab] | 813 | |
---|
[171ef85] | 814 | void ipc_child_disable() |
---|
| 815 | { |
---|
| 816 | b_event_remove( global.listen_watch_source_id ); |
---|
| 817 | close( global.listen_socket ); |
---|
| 818 | |
---|
| 819 | global.listen_socket = -1; |
---|
| 820 | } |
---|
| 821 | |
---|
[80c1e4d] | 822 | #ifndef _WIN32 |
---|
[54879ab] | 823 | char *ipc_master_save_state() |
---|
| 824 | { |
---|
| 825 | char *fn = g_strdup( "/tmp/bee-restart.XXXXXX" ); |
---|
| 826 | int fd = mkstemp( fn ); |
---|
| 827 | GSList *l; |
---|
| 828 | FILE *fp; |
---|
| 829 | int i; |
---|
| 830 | |
---|
| 831 | if( fd == -1 ) |
---|
| 832 | { |
---|
| 833 | log_message( LOGLVL_ERROR, "Could not create temporary file: %s", strerror( errno ) ); |
---|
| 834 | g_free( fn ); |
---|
| 835 | return NULL; |
---|
| 836 | } |
---|
| 837 | |
---|
| 838 | /* This is more convenient now. */ |
---|
| 839 | fp = fdopen( fd, "w" ); |
---|
| 840 | |
---|
| 841 | for( l = child_list, i = 0; l; l = l->next ) |
---|
| 842 | i ++; |
---|
| 843 | |
---|
| 844 | /* Number of client processes. */ |
---|
| 845 | fprintf( fp, "%d\n", i ); |
---|
| 846 | |
---|
| 847 | for( l = child_list; l; l = l->next ) |
---|
[52744f8] | 848 | fprintf( fp, "%d %d\n", (int) ((struct bitlbee_child*)l->data)->pid, |
---|
[54879ab] | 849 | ((struct bitlbee_child*)l->data)->ipc_fd ); |
---|
| 850 | |
---|
| 851 | if( fclose( fp ) == 0 ) |
---|
| 852 | { |
---|
| 853 | return fn; |
---|
| 854 | } |
---|
| 855 | else |
---|
| 856 | { |
---|
| 857 | unlink( fn ); |
---|
| 858 | g_free( fn ); |
---|
| 859 | return NULL; |
---|
| 860 | } |
---|
| 861 | } |
---|
| 862 | |
---|
[6dff9d4] | 863 | |
---|
[ba9edaa] | 864 | static gboolean new_ipc_client( gpointer data, gint serversock, b_input_condition cond ) |
---|
[6dff9d4] | 865 | { |
---|
| 866 | struct bitlbee_child *child = g_new0( struct bitlbee_child, 1 ); |
---|
[a0d04d6] | 867 | |
---|
[6c2404e] | 868 | child->to_fd = -1; |
---|
[a0d04d6] | 869 | child->ipc_fd = accept( serversock, NULL, 0 ); |
---|
| 870 | if( child->ipc_fd == -1 ) |
---|
| 871 | { |
---|
[8a56e52] | 872 | log_message( LOGLVL_WARNING, "Unable to accept connection on UNIX domain socket: %s", strerror(errno) ); |
---|
| 873 | return TRUE; |
---|
| 874 | } |
---|
[6dff9d4] | 875 | |
---|
[e046390] | 876 | child->ipc_inpa = b_input_add( child->ipc_fd, B_EV_IO_READ, ipc_master_read, child ); |
---|
[a0d04d6] | 877 | |
---|
[6c2404e] | 878 | child_list = g_slist_prepend( child_list, child ); |
---|
[ba9edaa] | 879 | |
---|
[6dff9d4] | 880 | return TRUE; |
---|
| 881 | } |
---|
| 882 | |
---|
| 883 | int ipc_master_listen_socket() |
---|
| 884 | { |
---|
| 885 | struct sockaddr_un un_addr; |
---|
| 886 | int serversock; |
---|
| 887 | |
---|
| 888 | /* Clean up old socket files that were hanging around.. */ |
---|
[8a56e52] | 889 | if (unlink(IPCSOCKET) == -1 && errno != ENOENT) { |
---|
| 890 | log_message( LOGLVL_ERROR, "Could not remove old IPC socket at %s: %s", IPCSOCKET, strerror(errno) ); |
---|
| 891 | return 0; |
---|
| 892 | } |
---|
[6dff9d4] | 893 | |
---|
| 894 | un_addr.sun_family = AF_UNIX; |
---|
| 895 | strcpy(un_addr.sun_path, IPCSOCKET); |
---|
| 896 | |
---|
| 897 | serversock = socket(AF_UNIX, SOCK_STREAM, PF_UNIX); |
---|
| 898 | |
---|
[8a56e52] | 899 | if (serversock == -1) { |
---|
| 900 | log_message( LOGLVL_WARNING, "Unable to create UNIX socket: %s", strerror(errno) ); |
---|
| 901 | return 0; |
---|
| 902 | } |
---|
[6dff9d4] | 903 | |
---|
[5d6c178] | 904 | if (bind(serversock, (struct sockaddr *)&un_addr, sizeof(un_addr)) == -1) { |
---|
[8a56e52] | 905 | log_message( LOGLVL_WARNING, "Unable to bind UNIX socket to %s: %s", IPCSOCKET, strerror(errno) ); |
---|
| 906 | return 0; |
---|
| 907 | } |
---|
| 908 | |
---|
| 909 | if (listen(serversock, 5) == -1) { |
---|
| 910 | log_message( LOGLVL_WARNING, "Unable to listen on UNIX socket: %s", strerror(errno) ); |
---|
| 911 | return 0; |
---|
| 912 | } |
---|
[6dff9d4] | 913 | |
---|
[e046390] | 914 | b_input_add( serversock, B_EV_IO_READ, new_ipc_client, NULL ); |
---|
[8a56e52] | 915 | |
---|
[6dff9d4] | 916 | return 1; |
---|
| 917 | } |
---|
| 918 | #else |
---|
[1cda4f3] | 919 | int ipc_master_listen_socket() |
---|
| 920 | { |
---|
[6dff9d4] | 921 | /* FIXME: Open named pipe \\.\BITLBEE */ |
---|
[1cda4f3] | 922 | return 0; |
---|
| 923 | } |
---|
[6dff9d4] | 924 | #endif |
---|
| 925 | |
---|
[cd63d58] | 926 | int ipc_master_load_state( char *statefile ) |
---|
[54879ab] | 927 | { |
---|
| 928 | struct bitlbee_child *child; |
---|
| 929 | FILE *fp; |
---|
| 930 | int i, n; |
---|
| 931 | |
---|
| 932 | if( statefile == NULL ) |
---|
| 933 | return 0; |
---|
[cd63d58] | 934 | |
---|
[54879ab] | 935 | fp = fopen( statefile, "r" ); |
---|
| 936 | unlink( statefile ); /* Why do it later? :-) */ |
---|
| 937 | if( fp == NULL ) |
---|
| 938 | return 0; |
---|
| 939 | |
---|
| 940 | if( fscanf( fp, "%d", &n ) != 1 ) |
---|
| 941 | { |
---|
| 942 | log_message( LOGLVL_WARNING, "Could not import state information for child processes." ); |
---|
| 943 | fclose( fp ); |
---|
| 944 | return 0; |
---|
| 945 | } |
---|
| 946 | |
---|
| 947 | log_message( LOGLVL_INFO, "Importing information for %d child processes.", n ); |
---|
| 948 | for( i = 0; i < n; i ++ ) |
---|
| 949 | { |
---|
| 950 | child = g_new0( struct bitlbee_child, 1 ); |
---|
| 951 | |
---|
[52744f8] | 952 | if( fscanf( fp, "%d %d", (int *) &child->pid, &child->ipc_fd ) != 2 ) |
---|
[54879ab] | 953 | { |
---|
| 954 | log_message( LOGLVL_WARNING, "Unexpected end of file: Only processed %d clients.", i ); |
---|
| 955 | g_free( child ); |
---|
| 956 | fclose( fp ); |
---|
| 957 | return 0; |
---|
| 958 | } |
---|
[e046390] | 959 | child->ipc_inpa = b_input_add( child->ipc_fd, B_EV_IO_READ, ipc_master_read, child ); |
---|
[6c2404e] | 960 | child->to_fd = -1; |
---|
[54879ab] | 961 | |
---|
[6c2404e] | 962 | child_list = g_slist_prepend( child_list, child ); |
---|
[54879ab] | 963 | } |
---|
| 964 | |
---|
| 965 | ipc_to_children_str( "HELLO\r\n" ); |
---|
| 966 | ipc_to_children_str( "OPERMSG :New BitlBee master process started (version " BITLBEE_VERSION ")\r\n" ); |
---|
| 967 | |
---|
[dd89a55] | 968 | fclose( fp ); |
---|
[54879ab] | 969 | return 1; |
---|
| 970 | } |
---|