1 Redistribution and use in source and binary forms are permitted provided 2 that: (1) source distributions retain this entire copyright notice and 3 comment, and (2) distributions including binaries display the following 4 acknowledgement: ``This product includes software developed by the 5 University of California, Berkeley and its contributors'' in the 6 documentation or other materials provided with the distribution and in 7 all advertising materials mentioning features or use of this software. 8 Neither the name of the University nor the names of its contributors may 9 be used to endorse or promote products derived from this software without 10 specific prior written permission. 11 THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED 12 WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF 13 MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. 14