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

integrate changes from bind 4.9 (most of them); continue to use address
INADDR_ANY rather than 127.1; convert u_short to u_int16_t as appropriate

Add include files to get prototype declarations, and fix bugs found.

make dn_skipname, fp_query, hostalias, p_cdname, p_class, p_query,
p_rr, p_time, p_type, putlong and putshort hidden

new copyright notice

check return value from socket call

fix problem where a long running tcp connection might get closed
and only one server is being used

connect only to first server on first attempt (fix logic error)

install approved copyright notice

disconnect after first server regardless of how we fail

added Berkeley specific header

don't try to connect connected socket, and keep sending;
check for answer buffer overflow, set truncated flag, and toss overflow data

connect once, then disconnect

fix problem with connect/send

fix fdset for 4.2bsd sites

virtual circuits must be able to fall back to the host table as well

use FD_ macros

change the writes to a writev for tcp, performance improves drasticly

change retry loop to test before decrementing

Change timeouts, use perror to print error messages, lint clean up

add entry point for closing tcp socket, a bit of lint work

flag socket as closed if timed out

move resolv.h to /usr/include

change include types.h to param.h

added LIBC_SCCS condition for sccs ids