MySql.Data.MySqlClient.MySqlPacket.ReadFieldLength C# (CSharp) Method

    public long ReadFieldLength()
    {
      byte c = ReadByte();

      switch (c)
      {
        case 251: return -1;
        case 252: return ReadInteger(2);
        case 253: return ReadInteger(3);
        case 254: return ReadLong(8);
        default: return c;
      }
    }

        internal void ReadOk(bool read)
        {
            try
            {
                if (read)
                {
                    packet = stream.ReadPacket();
                }
                byte marker = (byte)packet.ReadByte();
                if (marker != 0)
                {
                    throw new MySqlException("Out of sync with server", true, null);
                }

                packet.ReadFieldLength();                 /* affected rows */
                packet.ReadFieldLength();                 /* last insert id */
                if (packet.HasMoreData)
                {
                    serverStatus = (ServerStatusFlags)packet.ReadInteger(2);
                    packet.ReadInteger(2);                      /* warning count */
                    if (packet.HasMoreData)
                    {
                        packet.ReadLenString();                          /* message */
                    }
                }
            }
            catch (MySqlException ex)
            {
                HandleException(ex);
                throw;
            }
        }