No, but you could easily write a tool that can do any behavior you want between stdin and stdout, then wire it up on both ends via netcat. Or simply do the socket code yourself :)
You could also get clever with iptables. Sounds like it could be a useful project. /* PLUG: http://plug.org, #utah on irc.freenode.net Unsubscribe: http://plug.org/mailman/options/plug Don't fear the penguin. */