This directory contains a new TCP for the IBM PC.  Its failings are:
		GENERAL
(1) Maximum of 7 connections at once (see <ntcpblk.h>)
(2) each con takes a 2K buffer although less could easily be
    implemented by changing tcp_open(),tcp_upcall(),tcp_rcv().
(3) Transmission speed is somewhat slow; rewrite the tputs() routine
    in assembly to go from 4K/sec to about 8K/sec over Ethernet w/no dallying.
(4) there is no "tgets" or "tfgets" function; SMTP has a 100% infallable
    implementation which should be available in this library, along with the
    "tputs,tputc,tprintf" functions.

		TCP SPECIFIC
(5) URGENT data is implemented, but untested and undocumented.
(6) Incremental backoff of retransmissions would be nice.
(7) ACKs of unsent data prompts a reset; this should probably be changed
    for server programs worried about zombie tcps trying to communicate.
(8) Simultaneous opens (both sides send SYN simultaneously) are not handled.

		TESTING TCP

"make twhois" creates a special whois testing program; read file "whois.c".
This is good for fixing protocol errors that happen consistently, and can
be diagnosed from the packet conversation.

"make itest" stubs TCP and lets you see how tcp reacts to hand-typed packets.
It is a version of nwhois.c with an extra task that simulates any foreign
host and the timers.  It was used to debug an entire rewrite of tcp_rcv.
