Copyright (c) 1987 Regents of the University of California. All rights reserved. 

Redistribution and use in source and binary forms are permitted provided 
that the above copyright notice and this paragraph are duplicated in all 
such forms and that any documentation, advertising materials, and other 
materials related to such distribution and use acknowledge that the software 
was developed by the University of California, Berkeley. The name of the 
University may not be used to endorse or promote products derived from this 
software without specific prior written permission. THIS SOFTWARE IS PROVIDED 
``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, WITHOUT 
LIMITATION, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
