Index: source/lobby/IXmppClient.h
===================================================================
--- source/lobby/IXmppClient.h
+++ source/lobby/IXmppClient.h
@@ -22,7 +22,7 @@
 
 class ScriptInterface;
 namespace StunClient {
-class StunEndpoint;
+	struct StunEndpoint;
 }
 
 class IXmppClient
Index: source/network/StunClient.cpp
===================================================================
--- source/network/StunClient.cpp
+++ source/network/StunClient.cpp
@@ -115,7 +115,10 @@
 	offset += n;
 	while (a--)
 	{
-		result <<= 8;
+		// Prevent shift count overflow if the type is u8
+		if (n > 1)
+			result <<= 8;
+
 		result += buffer[offset - 1 - a];
 	}
 	return true;