docs: function monitor(req, res) {
    var socket = req.conn.socket
      , args = [req.cmd].concat(req.args)
      , t = systime()
      , str;
  
    // quote command and args
    args = args.map(function(arg) {
      return '"' + arg + '"';
    })
  
    // TODO: figure out meaning of ip/host prefix: [0
  
    // build up the monitor simple string response
    str = new String(
      util.format(Constants.FORMAT.MONITOR,
        t.s, t.m,
        socket.remoteAddress, socket.remotePort, args.join(' ')));
  
    // emit the event, listening connections will send replies
    // to clients registered for monitor
    this.emit('monitor', str);
  }