func_vmcount.c

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/*
 * Asterisk -- An open source telephony toolkit.
 *
 * Copyright (c) 2006 Tilghman Lesher. All rights reserved.
 *
 * Tilghman Lesher <[email protected]>
 *
 * 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 VMCOUNT dialplan function
 *
 * \author Tilghman Lesher <[email protected]>
 *
 * \ingroup functions
 */

/*** MODULEINFO
 <support_level>core</support_level>
 ***/

#include "asterisk.h"

#include <dirent.h>

#include "asterisk/file.h"
#include "asterisk/channel.h"
#include "asterisk/pbx.h"
#include "asterisk/module.h"
#include "asterisk/lock.h"
#include "asterisk/utils.h"
#include "asterisk/app.h"

/*** DOCUMENTATION
 <function name="VMCOUNT" language="en_US">
 <synopsis>
 Count the voicemails in a specified mailbox.
 </synopsis>
 <syntax>
 <parameter name="vmbox" required="true" />
 <parameter name="folder" required="false">
 <para>If not specified, defaults to <literal>INBOX</literal></para>
 </parameter>
 </syntax>
 <description>
 <para>Count the number of voicemails in a specified mailbox, you could also specify
 the mailbox <replaceable>folder</replaceable>.</para>
 <para>Example: <literal>exten => s,1,Set(foo=${VMCOUNT(125@default)})</literal></para>
 </description>
 </function>
 ***/

static int acf_vmcount_exec(struct ast_channel *chan, const char *cmd, char *argsstr, char *buf, size_t len)
{
 AST_DECLARE_APP_ARGS(args,
 AST_APP_ARG(vmbox);
 AST_APP_ARG(folder);
 );

 buf[0] = '\0';

 if (ast_strlen_zero(argsstr))
 return -1;

 AST_STANDARD_APP_ARGS(args, argsstr);

 if (ast_strlen_zero(args.vmbox)) {
 return -1;
 }

 if (ast_strlen_zero(args.folder)) {
 args.folder = "INBOX";
 }

 snprintf(buf, len, "%d", ast_app_messagecount(args.vmbox, args.folder));

 return 0;
}

static struct ast_custom_function acf_vmcount = {
 .name = "VMCOUNT",
 .read = acf_vmcount_exec,
 .read_max = 12,
};

static int unload_module(void)
{
 return ast_custom_function_unregister(&acf_vmcount);
}

static int load_module(void)
{
 return ast_custom_function_register(&acf_vmcount);
}

AST_MODULE_INFO_STANDARD(ASTERISK_GPL_KEY, "Indicator for whether a voice mailbox has messages in a given folder.");