...

index.js

@@ -81,7 +81,7 @@ class Socket extends EventEmitter {
 				const newBuffer = buffer.slice (0, bytes);
 				this.emit ("message", newBuffer, source, buffer);
 				if(this.recvPaused) {
-					return undefined
+					return
 				}
 				buffer = this.buffer
 				return buffer

src/raw.cc

@@ -690,7 +690,7 @@ NAN_METHOD(SocketWrap::Recv) {
 	}
 
 	if (info.Length () < 2) {
-		Nan::ThrowError("Five arguments are required");
+		Nan::ThrowError("Two arguments are required");
 		return;
 	}
 
@@ -741,13 +741,10 @@ NAN_METHOD(SocketWrap::Recv) {
 		argv[0] = Nan::New<Number>(rc);
 		argv[1] = Nan::New(addr).ToLocalChecked();
 		MaybeLocal<v8::Value> newBuffer = cb->Call (context, socket->handle(), 2, argv);
-		if(!newBuffer.ToLocal(&argv[0])) {
-			break;
-		}
-		MaybeLocal<Object> maybeBuffer = Nan::To<Object>(argv[0]);
-		if(!maybeBuffer.ToLocal(&buffer)) {
+		if(!newBuffer.ToLocal(&argv[0]) || !argv[0]->IsObject() || !node::Buffer::HasInstance(argv[0])) {
 			break;
 		}
+		buffer = argv[0]->ToObject(context).ToLocalChecked();
 	} while(true);
 
 	info.GetReturnValue().Set(info.This());