Mediatek端末のアンロックコードを計算しようとしているところ。（動作しないと思う。）

Generate mtk unlock code.c

#include <stdio.h>
#include <stdint.h>
#include <string.h>
#define SERIALNO_LEN 32
#define ARRAY_SIZE(x) (sizeof(x) / sizeof((x)[0]))
static char udc_chr[32] = {"ABCDEFGHIJKLMNOPQRSTUVWSYZ456789"};
int get_serial(uint64_t hwkey, uint32_t chipid, char ser[SERIALNO_LEN])
{
    uint16_t hashkey[4];
    int idx, ser_idx;
    uint32_t digit, id;
    uint64_t tmp = hwkey;

    memset(ser, 0x00, SERIALNO_LEN);
    /* split to 4 key with 16-bit width each */
    tmp = hwkey;
    for (idx = 0; idx < ARRAY_SIZE(hashkey); idx++) {
        hashkey[idx] = (uint16_t)(tmp & 0xffff);
        //printf("%d\n",hashkey[idx]);
        tmp >>= 16;
    }

    /* hash the key with chip id */
    id = chipid;
    for (idx = 0; idx < ARRAY_SIZE(hashkey); idx++) {
        digit = (id % 10);
        hashkey[idx] = (hashkey[idx] >> digit) | (hashkey[idx] << (16-digit));
        //printf("%d\n",hashkey[idx]);
        id = (id / 10);
    }

    /* generate serail using hashkey */
    ser_idx = 0;
    for (idx = 0; idx < ARRAY_SIZE(hashkey); idx++) {
        ser[ser_idx++] = (hashkey[idx] & 0x001f);
        ser[ser_idx++] = (hashkey[idx] & 0x00f8) >> 3;
        ser[ser_idx++] = (hashkey[idx] & 0x1f00) >> 8;
        ser[ser_idx++] = (hashkey[idx] & 0xf800) >> 11;
    }
    for (idx = 0; idx < ser_idx; idx++){
        //printf("before %d\n",ser[idx]);
        ser[idx] = udc_chr[(int)ser[idx]];
        printf("%c",ser[idx]);
        //printf("text %c\n",(char)udc_chr[3]);
        }
    ser[ser_idx] = 0x00;
    return ser;
}


int main(int argc, char *argv[]) {
    char serial_number[SERIALNO_LEN] = {0};
    //printf("Unlock code = %c\n",get_serial(1, 0x1, serial_number));
    get_serial(0x490a3ddf51e74f47801ccd62b7cf808b, 0x8168, serial_number);
    //    get_serial(Paste here serial number., Paste here chipid, serial_number);
    //oem unlock "key"
    return 0;
}