diff options
Diffstat (limited to '1.4.23-rc4/pbx/pbx_loopback.c')
| -rw-r--r-- | 1.4.23-rc4/pbx/pbx_loopback.c | 191 |
1 files changed, 0 insertions, 191 deletions
diff --git a/1.4.23-rc4/pbx/pbx_loopback.c b/1.4.23-rc4/pbx/pbx_loopback.c deleted file mode 100644 index 042cbfb5f..000000000 --- a/1.4.23-rc4/pbx/pbx_loopback.c +++ /dev/null @@ -1,191 +0,0 @@ -/* - * Asterisk -- An open source telephony toolkit. - * - * Copyright (C) 1999 - 2005, Digium, Inc. - * - * Mark Spencer <markster@digium.com> - * - * See http://www.asterisk.org for more information about - * the Asterisk project. Please do not directly contact - * any of the maintainers of this project for assistance; - * the project provides a web site, mailing lists and IRC - * channels for your use. - * - * This program is free software, distributed under the terms of - * the GNU General Public License Version 2. See the LICENSE file - * at the top of the source tree. - */ - -/*! \file - * - * \brief Loopback PBX Module - * - */ - -#include "asterisk.h" - -ASTERISK_FILE_VERSION(__FILE__, "$Revision$") - -#include <stdlib.h> -#include <stdio.h> -#include <unistd.h> -#include <string.h> -#include <errno.h> - -#include "asterisk/file.h" -#include "asterisk/logger.h" -#include "asterisk/channel.h" -#include "asterisk/config.h" -#include "asterisk/options.h" -#include "asterisk/pbx.h" -#include "asterisk/module.h" -#include "asterisk/frame.h" -#include "asterisk/file.h" -#include "asterisk/cli.h" -#include "asterisk/lock.h" -#include "asterisk/md5.h" -#include "asterisk/linkedlists.h" -#include "asterisk/chanvars.h" -#include "asterisk/sched.h" -#include "asterisk/io.h" -#include "asterisk/utils.h" -#include "asterisk/crypto.h" -#include "asterisk/astdb.h" - - -/* Loopback switch creates a 'tunnel' to another context. When extension - lookups pass through the 'tunnel', Asterisk expressions can be used - to modify the target extension, context, and priority in any way desired. - If there is a match at the far end, execution jumps through the 'tunnel' - to the matched context, extension, and priority. - - Global variables as well as ${CONTEXT}, ${EXTEN}, and ${PRIORITY} are - available for substitution. After substitution Loopback expects to get - a string of the form: - - [exten]@context[:priority][/extramatch] - - Where exten, context, and priority are another extension, context, and priority - to lookup and "extramatch" is a dialplan extension pattern which the *original* - number must match. If exten or priority are empty, the original values are - used. - - Note that the search context MUST be a different context from the current - context or the search will not succeed. This is intended to reduce the - likelihood of loops (they're still possible if you try hard, so be careful!) - -*/ - - -#define LOOPBACK_COMMON \ - char buf[1024]; \ - int res; \ - char *newexten=(char *)exten, *newcontext=(char *)context; \ - int newpriority=priority; \ - char *newpattern=NULL; \ - loopback_subst(buf, sizeof(buf), exten, context, priority, data); \ - loopback_parse(&newexten, &newcontext, &newpriority, &newpattern, buf); \ - ast_log(LOG_DEBUG, "Parsed into %s @ %s priority %d\n", newexten, newcontext, newpriority); \ - if (!strcasecmp(newcontext, context)) return -1 - -static char *loopback_subst(char *buf, int buflen, const char *exten, const char *context, int priority, const char *data) -{ - struct ast_var_t *newvariable; - struct varshead headp; - char tmp[80]; - - snprintf(tmp, sizeof(tmp), "%d", priority); - memset(buf, 0, buflen); - AST_LIST_HEAD_INIT_NOLOCK(&headp); - newvariable = ast_var_assign("EXTEN", exten); - AST_LIST_INSERT_HEAD(&headp, newvariable, entries); - newvariable = ast_var_assign("CONTEXT", context); - AST_LIST_INSERT_HEAD(&headp, newvariable, entries); - newvariable = ast_var_assign("PRIORITY", tmp); - AST_LIST_INSERT_HEAD(&headp, newvariable, entries); - /* Substitute variables */ - pbx_substitute_variables_varshead(&headp, data, buf, buflen); - /* free the list */ - while ((newvariable = AST_LIST_REMOVE_HEAD(&headp, entries))) - ast_var_delete(newvariable); - return buf; -} - -static void loopback_parse(char **newexten, char **newcontext, int *priority, char **newpattern, char *buf) -{ - char *con; - char *pri; - *newpattern = strchr(buf, '/'); - if (*newpattern) - *(*newpattern)++ = '\0'; - con = strchr(buf, '@'); - if (con) { - *con++ = '\0'; - pri = strchr(con, ':'); - } else - pri = strchr(buf, ':'); - if (!ast_strlen_zero(buf)) - *newexten = buf; - if (!ast_strlen_zero(con)) - *newcontext = con; - if (!ast_strlen_zero(pri)) - sscanf(pri, "%d", priority); -} - -static int loopback_exists(struct ast_channel *chan, const char *context, const char *exten, int priority, const char *callerid, const char *data) -{ - LOOPBACK_COMMON; - res = ast_exists_extension(chan, newcontext, newexten, newpriority, callerid); - if (newpattern && !ast_extension_match(newpattern, exten)) - res = 0; - return res; -} - -static int loopback_canmatch(struct ast_channel *chan, const char *context, const char *exten, int priority, const char *callerid, const char *data) -{ - LOOPBACK_COMMON; - res = ast_canmatch_extension(chan, newcontext, newexten, newpriority, callerid); - if (newpattern && !ast_extension_match(newpattern, exten)) - res = 0; - return res; -} - -static int loopback_exec(struct ast_channel *chan, const char *context, const char *exten, int priority, const char *callerid, const char *data) -{ - LOOPBACK_COMMON; - res = ast_spawn_extension(chan, newcontext, newexten, newpriority, callerid); - return res; -} - -static int loopback_matchmore(struct ast_channel *chan, const char *context, const char *exten, int priority, const char *callerid, const char *data) -{ - LOOPBACK_COMMON; - res = ast_matchmore_extension(chan, newcontext, newexten, newpriority, callerid); - if (newpattern && !ast_extension_match(newpattern, exten)) - res = 0; - return res; -} - -static struct ast_switch loopback_switch = -{ - name: "Loopback", - description: "Loopback Dialplan Switch", - exists: loopback_exists, - canmatch: loopback_canmatch, - exec: loopback_exec, - matchmore: loopback_matchmore, -}; - -static int unload_module(void) -{ - ast_unregister_switch(&loopback_switch); - return 0; -} - -static int load_module(void) -{ - ast_register_switch(&loopback_switch); - return 0; -} - -AST_MODULE_INFO_STANDARD(ASTERISK_GPL_KEY, "Loopback Switch"); |