* Copyright (c) 2000 QoS Networking Laboratory (QNL),
 * Boston University.
 * All rights reserved.
 *
 * Permission to use, copy, modify, and distribute this software and its
 * documentation for any purpose and without fee is hereby granted, provided
 * that the above copyright notice appear in all copies and that both that
 * copyright notice and this permission notice appear in supporting
 * documentation. The QoS Networking Laboratory (QNL) of the Computer Science
 * Department at Boston University makes no representations about the
 * suitability of this software for any purpose.  It is provided "as is"
 * without express or implied warranty.
 */