database_version_ext.c

Go to the documentation of this file.

/*
 * Copyright (c) 2014 Jerry Lundström <lundstrom.jerry@gmail.com>
 * Copyright (c) 2014 .SE (The Internet Infrastructure Foundation).
 * Copyright (c) 2014 OpenDNSSEC AB (svb)
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
 * GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER
 * IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
 * IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 *
 */
 
#include "database_version.h"
 
int database_version_get_version(db_connection_t* connection) {
    database_version_list_t* database_version_list;
    const database_version_t* database_version;
    int ret;
 
    if (!(database_version_list = database_version_list_new_get(connection))
        || !(database_version = database_version_list_next(database_version_list)))
    {
        database_version_list_free(database_version_list);
        return 0;
    }
    ret = database_version_version(database_version);
    if (database_version_list_next(database_version_list)) {
        database_version_list_free(database_version_list);
        return 0;
    }
    database_version_list_free(database_version_list);
    return ret;
}