Copyright (c) 1989,1990, 1993, 1994
   20:  *      The Regents of the University of California.  All rights reserved.
   21:  *
   22:  * Redistribution and use in source and binary forms, with or without
   23:  * modification, are permitted provided that the following conditions
   24:  * are met:
   25:  * 1. Redistributions of source code must retain the above copyright
   26:  *    notice, this list of conditions and the following disclaimer.
   27:  * 2. Redistributions in binary form must reproduce the above copyright
   28:  *    notice, this list of conditions and the following disclaimer in the
   29:  *    documentation and/or other materials provided with the distribution.
   30:  * 4. Neither the name of the University nor the names of its contributors
   31:  *    may be used to endorse or promote products derived from this software
   32:  *    without specific prior written permission.
   33:  *
   34:  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS "AS IS" AND
   35:  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
   36:  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
   37:  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
   38:  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
   39:  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
   40:  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
   41:  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
   42:  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
   43:  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
   44:  * SUCH DAMAGE.