88 lines
2.0 KiB
C
88 lines
2.0 KiB
C
/*
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* Asterisk -- An open source telephony toolkit.
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*
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* Copyright (C) 1999 - 2006, 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 Simple module check function
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* \author Olle E. Johansson, Edvina.net
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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/pbx.h"
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/*** DOCUMENTATION
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<function name="IFMODULE" language="en_US">
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<synopsis>
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Checks if an Asterisk module is loaded in memory.
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</synopsis>
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<syntax>
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<parameter name="modulename.so" required="true">
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<para>Module name complete with <literal>.so</literal></para>
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</parameter>
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</syntax>
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<description>
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<para>Checks if a module is loaded. Use the full module name
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as shown by the list in <literal>module list</literal>.
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Returns <literal>1</literal> if module exists in memory, otherwise <literal>0</literal></para>
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</description>
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</function>
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***/
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static int ifmodule_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 *ret = "0";
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*buf = '\0';
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if (data)
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if (ast_module_check(data))
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ret = "1";
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ast_copy_string(buf, ret, len);
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return 0;
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}
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static struct ast_custom_function ifmodule_function = {
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.name = "IFMODULE",
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.read = ifmodule_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(&ifmodule_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(&ifmodule_function);
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}
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AST_MODULE_INFO_STANDARD(ASTERISK_GPL_KEY, "Checks if Asterisk module is loaded in memory");
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