Need program to attach a pseudo tty to tcp/ip port

[Lawrence Harris]

I have an emulex terminal server and want to be able to put a modem
on one of the server ports.  I have been able to put a printer on
a port using a custom print filter that opens a tcp connection the
the port and then copies standard in.  What I need is a program that
will attach itself between a pseudo tty and the terminal server port
so that I can use 'cu' or 'kermit' to talk to the modem.

This sound like something that should have been done before so I thought
I would ask if some kind soul would send me a program that either will
do the trick or act as an example.

Thanks, Lawrence Harris

ps. The system is running XENIX 386.

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