void LAN_CopyAppData(int* r0, int packet, int out, uint outBufSize) {
    int u1 = 68612;

    if (out != NULL) {
        // The actual length to read from the `packet` buffer at the start of our
        // application data (which our 'server' controls)
        uint appDataLength = *(uint *)(packet + 432);

        // In some cases, outBufSize is input as a larger number than the bounds of the
        // `out` buffer, which allows a stack buffer overflow (in our specific case, `*out`
        // is 128 bytes long, and outBufSize is 150!)
        if (appDataLength <= outBufSize) {
            memcpy(out, packet + 48, outBufSize); // packet[47], start of application data

            u1 = 0;
        }

        *r0 = u1;
        return;
    }

    *r0 = 68615;
    return;
}