const packet_type = @intToPtr(*PacketType, @ptrToInt(packet.ptr)).*;
    const packet_data_ptr = &packet[@sizeOf(PacketType)];
    const ThisPacketType = switch (packet_type) {
        PacketType.AuthTokenPacket => net.packet.AuthTokenPacket,
        else => @panic("Unexpected packet\n"),
    };
    const packet_data = @intToPtr(*ThisPacketType, @ptrToInt(packet_data_ptr));