make 'readyState' available to CryptoStream

lib/tls.js

@@ -167,6 +167,9 @@ CryptoStream.prototype.destroy = function(err) {
   this.pair._destroy();
 };
 
+CryptoStream.prototype.fd = -1;
+CryptoStream.prototype.__defineGetter__('readyState',
+  net.Socket.prototype.__lookupGetter__('readyState'));
 
 // Move decrypted, clear data out into the application.
 // From the user's perspective this occurs as a 'data' event