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d4938a111e
This change introduces MODULEINFO into many modules in Asterisk in order to show the community support level for those modules. This is used by changes committed to menuselect by Russell Bryant recently (r917 in menuselect). More information about the support level types and what they mean is available on the wiki at https://wiki.asterisk.org/wiki/display/AST/Asterisk+Module+Support+States git-svn-id: https://origsvn.digium.com/svn/asterisk/branches/1.8@328209 65c4cc65-6c06-0410-ace0-fbb531ad65f3
126 lines
3.2 KiB
C
126 lines
3.2 KiB
C
/*
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* Asterisk -- An open source telephony toolkit.
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*
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* Copyright (C) 2007, Digium, Inc.
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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 Dialplan group functions check if a dialplan entry exists
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*
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* \author Gregory Nietsky AKA irroot <gregory@networksentry.co.za>
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* \author Russell Bryant <russell@digium.com>
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*
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* \ingroup functions
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*/
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/*** MODULEINFO
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<support_level>core</support_level>
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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/module.h"
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#include "asterisk/channel.h"
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#include "asterisk/pbx.h"
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#include "asterisk/app.h"
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/*** DOCUMENTATION
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<function name="DIALPLAN_EXISTS" language="en_US">
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<synopsis>
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Checks the existence of a dialplan target.
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</synopsis>
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<syntax>
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<parameter name="context" required="true" />
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<parameter name="extension" />
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<parameter name="priority" />
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</syntax>
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<description>
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<para>This function returns <literal>1</literal> if the target exits. Otherwise, it returns <literal>0</literal>.</para>
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</description>
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</function>
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***/
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static int isexten_function_read(struct ast_channel *chan, const char *cmd, char *data,
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char *buf, size_t len)
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{
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char *parse;
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AST_DECLARE_APP_ARGS(args,
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AST_APP_ARG(context);
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AST_APP_ARG(exten);
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AST_APP_ARG(priority);
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);
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strcpy(buf, "0");
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if (ast_strlen_zero(data)) {
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ast_log(LOG_ERROR, "DIALPLAN_EXISTS() requires an argument\n");
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return -1;
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}
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parse = ast_strdupa(data);
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AST_STANDARD_APP_ARGS(args, parse);
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if (!ast_strlen_zero(args.priority)) {
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int priority_num;
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if (sscanf(args.priority, "%30d", &priority_num) == 1 && priority_num > 0) {
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int res;
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res = ast_exists_extension(chan, args.context, args.exten, priority_num,
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S_COR(chan->caller.id.number.valid, chan->caller.id.number.str, NULL));
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if (res)
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strcpy(buf, "1");
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} else {
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int res;
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res = ast_findlabel_extension(chan, args.context, args.exten, args.priority,
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S_COR(chan->caller.id.number.valid, chan->caller.id.number.str, NULL));
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if (res > 0)
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strcpy(buf, "1");
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}
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} else if (!ast_strlen_zero(args.exten)) {
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int res;
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res = ast_exists_extension(chan, args.context, args.exten, 1,
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S_COR(chan->caller.id.number.valid, chan->caller.id.number.str, NULL));
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if (res)
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strcpy(buf, "1");
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} else if (!ast_strlen_zero(args.context)) {
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if (ast_context_find(args.context))
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strcpy(buf, "1");
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} else {
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ast_log(LOG_ERROR, "Invalid arguments provided to DIALPLAN_EXISTS\n");
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return -1;
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}
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return 0;
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}
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static struct ast_custom_function isexten_function = {
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.name = "DIALPLAN_EXISTS",
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.read = isexten_function_read,
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.read_max = 2,
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};
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static int unload_module(void)
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{
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return ast_custom_function_unregister(&isexten_function);
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}
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static int load_module(void)
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{
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return ast_custom_function_register(&isexten_function);
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}
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AST_MODULE_INFO_STANDARD(ASTERISK_GPL_KEY, "Dialplan Context/Extension/Priority Checking Functions");
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