Full featured NodeJS repl server over a TCP socket (for node 0.6.x, uses some wacky server hacks)

repl-client.js

var tty = require('tty')
var net = require('net')

var sock = net.createConnection(1337)

sock.on('connect', function () {
  process.stdin.resume();
  tty.setRawMode(true)
})

process.stdin.pipe(sock)
sock.pipe(process.stdout)

sock.on('end', done)
sock.on('close', done)
function done () {
  if (done.run) return
  done.run = true
  tty.setRawMode(false)
  process.stdin.pause()
}

repl-server.js

var repl = require('repl')
var net = require('net')
var tty = require('tty')

// hack #1
process.stdin.resume()

net.createServer(function (socket) {

  // hack #2
  socket.isTTY = true

  // hack #3
  socket.getWindowSize = function () { return [ 80, 40 ] }

  // hack #4
  socket.cursorTo = tty.WriteStream.prototype.cursorTo
  socket.clearLine = tty.WriteStream.prototype.clearLine
  socket.moveCursor = tty.WriteStream.prototype.moveCursor

  // hack #5
  socket._emitKey = require('tty').ReadStream.prototype._emitKey
  socket.on('data', function (b) {
    socket._emitKey(b)
  })

  var r = repl.start('socket repl > ', socket)

  r.on && r.on('exit', function () {
    console.error('repl exit event, closing socket')
    socket.end()
  })
}).listen(1337)