code: public final String getHostName()
  	{
  		final Socket socket = s;
  		return socket == null ? "" : socket.getInetAddress().getHostName();
  	}
docs: Returns the remote host name of this log writer, or "" if the connection was
  closed.
  <p>
  Note that this might involve a reverse name lookup. It is possible that only the IP
  address string is returned.
  
  @return host name (or IP address) as String
  @see java.net.InetAddress#getHostName()