dgram: bring back setMulticastLoopback()

1 files changed, 7 insertions, 1 deletions

diff --git a/lib/dgram.js b/lib/dgram.js
index ee239558199..8c2ec6fcea6 100644
--- a/lib/dgram.js
+++ b/lib/dgram.js
@@ -248,7 +248,13 @@ Socket.prototype.setMulticastTTL = function(arg) {
 
 
 Socket.prototype.setMulticastLoopback = function(arg) {
-  throw new Error('not yet implemented');
+  arg = arg ? 1 : 0;
+
+  if (this._handle.setMulticastLoopback(arg)) {
+    throw errnoException(errno, 'setMulticastLoopback');
+  }
+
+  return arg; // 0.4 compatibility
 };