4.4BSD snapshot (revision 8.1); add 1993 to copyright

new copyright notice

install approved copyright notice

authored by Alan Char; add Berkeley specific header
fix random casting problems

fix external declarations for ANSI C

Add copyright

change calloc(... 2) to calloc(... sizeof(int))

bringing to release 4.1

date and time created 82/05/11 14:53:27 by rrh