1* Copyright 1995 by Wietse Venema. All rights reserved. Some individual 2* files may be covered by other copyrights. 3* 4* This material was originally written and compiled by Wietse Venema at 5* Eindhoven University of Technology, The Netherlands, in 1990, 1991, 6* 1992, 1993, 1994 and 1995. 7* 8* Redistribution and use in source and binary forms are permitted 9* provided that this entire copyright notice is duplicated in all such 10* copies. 11* 12* This software is provided "as is" and without any expressed or implied 13* warranties, including, without limitation, the implied warranties of 14* merchantibility and fitness for any particular purpose. 15