51391e6b09
In this commit: - move the ast_register/unregister_app functions to module.h to avoid the need to include pbx.h for the simpler apps; - move the ast_group structure to channel.h to remove the dependency of app.h on linkedlists.h Note, this is a long process that I am doing in small steps. The main difficulty is that now for each subsystem we have a single header (e.g. channel.h) included by the subsystem provider (usually one file, e.g. channel.c) and by its clients (dozens of them, e.g. we have some 70+ apps and 30+ functions). This requires the clients to include all the extra headers required by the provider (eg. lock.h, linkedlists.h, definitions of substructures...) even though many of the clients would be just happy with opaque struct declarations and function prototypes. The long term plan is to eventually rectify this structure so that the compilation can become faster, and also APIs are more stable. git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@89522 65c4cc65-6c06-0410-ace0-fbb531ad65f3
126 lines
3.1 KiB
C
126 lines
3.1 KiB
C
/*
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* Asterisk -- An open source telephony toolkit.
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*
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* Copyright (C) 1999 - 2005, Digium, Inc.
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*
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* Mark Spencer <markster@digium.com>
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*
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* See http://www.asterisk.org for more information about
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* the Asterisk project. Please do not directly contact
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* any of the maintainers of this project for assistance;
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* the project provides a web site, mailing lists and IRC
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* channels for your use.
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*
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* This program is free software, distributed under the terms of
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* the GNU General Public License Version 2. See the LICENSE file
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* at the top of the source tree.
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*/
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/*! \file
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*
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* \brief Transfer a caller
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*
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* \author Mark Spencer <markster@digium.com>
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*
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* Requires transfer support from channel driver
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*
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* \ingroup applications
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*/
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#include "asterisk.h"
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ASTERISK_FILE_VERSION(__FILE__, "$Revision$")
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#include "asterisk/pbx.h"
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#include "asterisk/module.h"
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#include "asterisk/app.h"
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#include "asterisk/channel.h"
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static const char *app = "Transfer";
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static const char *synopsis = "Transfer caller to remote extension";
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static const char *descrip =
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" Transfer([Tech/]dest[,options]): Requests the remote caller be transferred\n"
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"to a given destination. If TECH (SIP, IAX2, LOCAL etc) is used, only\n"
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"an incoming call with the same channel technology will be transfered.\n"
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"Note that for SIP, if you transfer before call is setup, a 302 redirect\n"
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"SIP message will be returned to the caller.\n"
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"\nThe result of the application will be reported in the TRANSFERSTATUS\n"
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"channel variable:\n"
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" SUCCESS Transfer succeeded\n"
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" FAILURE Transfer failed\n"
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" UNSUPPORTED Transfer unsupported by channel driver\n";
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static int transfer_exec(struct ast_channel *chan, void *data)
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{
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int res;
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int len;
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char *slash;
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char *tech = NULL;
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char *dest = NULL;
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char *status;
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char *parse;
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AST_DECLARE_APP_ARGS(args,
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AST_APP_ARG(dest);
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AST_APP_ARG(options);
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);
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if (ast_strlen_zero((char *)data)) {
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ast_log(LOG_WARNING, "Transfer requires an argument ([Tech/]destination[,options])\n");
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pbx_builtin_setvar_helper(chan, "TRANSFERSTATUS", "FAILURE");
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return 0;
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} else
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parse = ast_strdupa(data);
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AST_STANDARD_APP_ARGS(args, parse);
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if (args.options) {
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}
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dest = args.dest;
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if ((slash = strchr(dest, '/')) && (len = (slash - dest))) {
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tech = dest;
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dest = slash + 1;
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/* Allow execution only if the Tech/destination agrees with the type of the channel */
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if (strncasecmp(chan->tech->type, tech, len)) {
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pbx_builtin_setvar_helper(chan, "TRANSFERSTATUS", "FAILURE");
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return 0;
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}
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}
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/* Check if the channel supports transfer before we try it */
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if (!chan->tech->transfer) {
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pbx_builtin_setvar_helper(chan, "TRANSFERSTATUS", "UNSUPPORTED");
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return 0;
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}
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res = ast_transfer(chan, dest);
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if (res < 0) {
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status = "FAILURE";
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res = 0;
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} else {
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status = "SUCCESS";
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res = 0;
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}
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pbx_builtin_setvar_helper(chan, "TRANSFERSTATUS", status);
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return res;
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}
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static int unload_module(void)
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{
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return ast_unregister_application(app);
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}
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static int load_module(void)
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{
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return ast_register_application(app, transfer_exec, synopsis, descrip);
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}
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AST_MODULE_INFO_STANDARD(ASTERISK_GPL_KEY, "Transfers a caller to another extension");
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