func_version.c

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/*
 * Asterisk -- An open source telephony toolkit.
 *
 * Copyright (C) 2006, Digium, Inc.
 *
 * 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 Return the current Version strings
 *
 * \author Steve Murphy (murf@digium.com)
 * \ingroup functions
 */
 
/*** MODULEINFO
    <support_level>core</support_level>
 ***/
 
#include "asterisk.h"
 
#include "asterisk/module.h"
#include "asterisk/channel.h"
#include "asterisk/pbx.h"
#include "asterisk/utils.h"
#include "asterisk/app.h"
#include "asterisk/ast_version.h"
#include "asterisk/build.h"
 
/*** DOCUMENTATION
    <function name="VERSION" language="en_US">
        <synopsis>
            Return the Version info for this Asterisk.
        </synopsis>
        <syntax>
            <parameter name="info">
                <para>The possible values are:</para>
                <enumlist>
                    <enum name="ASTERISK_VERSION_NUM">
                        <para>A string of digits is returned, e.g. 10602 for 1.6.2 or 100300 for 10.3.0,
                        or 999999 when using a Git build.</para>
                    </enum>
                    <enum name="BUILD_USER">
                        <para>The string representing the user's name whose account
                        was used to configure Asterisk, is returned.</para>
                    </enum>
                    <enum name="BUILD_HOSTNAME">
                        <para>The string representing the name of the host on which Asterisk was configured, is returned.</para>
                    </enum>
                    <enum name="BUILD_MACHINE">
                        <para>The string representing the type of machine on which Asterisk was configured, is returned.</para>
                    </enum>
                    <enum name="BUILD_OS">
                        <para>The string representing the OS of the machine on which Asterisk was configured, is returned.</para>
                    </enum>
                    <enum name="BUILD_DATE">
                        <para>The string representing the date on which Asterisk was configured, is returned.</para>
                    </enum>
                    <enum name="BUILD_KERNEL">
                        <para>The string representing the kernel version of the machine on which Asterisk
                        was configured, is returned.</para>
                    </enum>
                </enumlist>
            </parameter>
        </syntax>
        <description>
            <para>If there are no arguments, return the version of Asterisk in this format: 18.12.0</para>
            <example title="Get current version">
            same => n,Set(junky=${VERSION()} ; sets junky to 18.12.0, or possibly GITMasterxxxxxx
            </example>
        </description>
    </function>
 ***/
 
static int acf_version_exec(struct ast_channel *chan, const char *cmd,
             char *parse, char *buffer, size_t buflen)
{
    const char *response_char = ast_get_version();
    AST_DECLARE_APP_ARGS(args,
        AST_APP_ARG(info);
    );
 
    AST_STANDARD_APP_ARGS(args, parse);
 
    if (!ast_strlen_zero(args.info) ) {
        if (!strcasecmp(args.info,"ASTERISK_VERSION_NUM"))
            response_char = ast_get_version_num();
        else if (!strcasecmp(args.info,"BUILD_USER"))
            response_char = BUILD_USER;
        else if (!strcasecmp(args.info,"BUILD_HOSTNAME"))
            response_char = BUILD_HOSTNAME;
        else if (!strcasecmp(args.info,"BUILD_MACHINE"))
            response_char = BUILD_MACHINE;
        else if (!strcasecmp(args.info,"BUILD_KERNEL"))
            response_char = BUILD_KERNEL;
        else if (!strcasecmp(args.info,"BUILD_OS"))
            response_char = BUILD_OS;
        else if (!strcasecmp(args.info,"BUILD_DATE"))
            response_char = BUILD_DATE;
    }
 
    ast_debug(1, "VERSION returns %s result, given %s argument\n", response_char, args.info);
 
    ast_copy_string(buffer, response_char, buflen);
 
    return 0;
}
 
static struct ast_custom_function acf_version = {
    .name = "VERSION",
    .read = acf_version_exec,
};
 
static int unload_module(void)
{
    ast_custom_function_unregister(&acf_version);
 
    return 0;
}
 
static int load_module(void)
{
    return ast_custom_function_register(&acf_version);
}
 
AST_MODULE_INFO_STANDARD(ASTERISK_GPL_KEY, "Get Asterisk Version/Build Info");