Audiovox P965 Arkusz Danych Pobierz pdf (Strona 235)

API in C

232

********************************************************************/

char *md5ToBinary(char *szHex)

{

int di;

char cBinWork[3];

char *szReturn;

// allocate 16 + 1 bytes for our return string

szReturn = malloc((16 + 1) * sizeof *szReturn);

// 32 bytes in szHex?

if (strlen(szHex) != 32)

{

return NULL;

}

for (di=0; di<32; di+=2)

{

cBinWork[0] = szHex[di];

cBinWork[1] = szHex[di + 1];

cBinWork[2] = 0;

DEBUG ? printf("cBinWork = %s\n", cBinWork) : 0;

szReturn[di/2] = hexStringToChar(cBinWork);

}

return szReturn;

}

/********************************************************************

* MD5 helper function to calculate and return hex representation

* of an MD5 digest stored in binary.

********************************************************************/

char *md5DigestToHexString(md5_byte_t *binaryDigest)

{

int di;

char *szReturn;

// allocate 32 + 1 bytes for our return string

szReturn = malloc((32 + 1) * sizeof *szReturn);

for (di = 0; di < 16; ++di)

{

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Audiovox P965 Arkusz Danych Strona 235