4.4BSD snapshot (revision 8.1); add 1993 to copyright
Add include files to get prototype declarations, and fix bugs found.
new copyright notice
make it possible to input subnetted class D nets and pre-shiftedclass B subnets.
install approved copyright notice
add Berkeley specific headers
copyright and rev 5
good enough for now; mask off bits from host that overlap network
merge of 4.1b and 4.1c
names all wrong
date and time created 82/10/07 16:40:02 by sam