/*
 *
 * Copyright 2010 Lennart Poettering
 *
 * This is free software; you can redistribute it and/or modify it
 * under the terms of the GNU Lesser General Public License as published by
 * the Free Software Foundation; either version 2.1 of the License, or
 * (at your option) any later version.
 *
 *
 * Copyright (C) 2015 Karel Zak <kzak@redhat.com>
 *    Modified the original version from systemd project for util-linux.
 */