part05

Documentation

Overview

This program extends part 4.

It listens on an available public IP and port, and for each incoming connection it decodes JSON-encoded messages and writes them to standard output. It simultaneously makes a connection to the host and port specified by -peer, reads lines from standard input, and writes JSON-encoded messages to the network connection. The messages include the listen address. For example:

{"Addr": "127.0.0.1:41232", "Body": "Hello"!}

You can test this program by listening with the dump program:

$ dump -listen=localhost:8000

In another terminal, running this program:

$ part5 -peer=localhost:8000

And in a third terminal, running part2 with the address printed by part5:

$ part2 -dial=192.168.1.200:54312

Lines typed in the third terminal should appear in the second, and those typed in the second window should appear in the first.