The TELNET protocol is designed to allow client
and server programs to whisper back and forth without
distrupting user I/O on the connection, by using
special escape sequences flagged by an initial
0xFF byte.
Muq provides in-server support for telnet
protocol processing primarily in the form of code in
the socket object implementation which can split the
bytestream from the net into two in-db bytestreams, one
carrying vanilla user I/O to the shell, and one
carrying TELNET protocol commands to a separate
TELNET daemon implemented in-db in the
telnet package in 07-C-telnet.t.
The current Muq telnet protocol support is a very rough first draft: Among other deficiencies, TCP urgent data is not properly supported (meaning telnet commands may not be communicated in as timely a fashion as they should) and no options are supported, with the partial exception of the ECHO option. All in good time.
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