Hack for legacy server list ping

src/PacketReader.h

@@ -16,7 +16,7 @@ namespace Feather
     {
     public:
         PacketReader(const uint8_t *const dataPtr)
-          : m_data(dataPtr), m_offset(0), m_length(ReadVarInt())
+          : m_data(dataPtr), m_offset(0), m_length(ReadLength())
         {
         }
 
@@ -46,6 +46,20 @@ namespace Feather
         // Fast way to read a byte
         inline uint8_t ReadByte() { return m_data[m_offset++]; }
 
+        inline int32_t ReadLength()
+        {
+            int32_t length = ReadVarInt();
+
+            // HACK: handle Legacy Server List Ping
+            if (length == 0xFE) {
+                if (PeekByte() == 0x01) {
+                    return 2;
+                }
+            }
+
+            return length;
+        }
+
         template <typename T = int32_t>
         inline T ReadVarInt()
         {