Audiovox P965 Datový list stáhnout pdf (Strana 125)

API In CPP

122

char cNull[1] = {0};

//Send login message

WriteWord("/login");

WriteWord(cNull);

ReadSentence(readSentence);

DEBUG ? readSentence.Print() : 0;

if (readSentence.GetReturnType() != DONE) {

printf("Error.\n");

} else {

// extract md5 string from the challenge sentence

char *strWord = new char [readSentence[1].size() + 1];

strcpy(strWord, readSentence[1].c_str());

char *md5Challenge = strtok(strWord, "=");

md5Challenge = strtok(NULL, "=");

DEBUG ? printf("MD5 of challenge = %s\n", md5Challenge) : 0;

////Place of interest: Check to see if this md5Challenge string works as as string.

// It may not because it needs to be binary.

// convert szMD5Challenge to binary

string md5ChallengeBinary = MD5ToBinary(md5Challenge);

delete[] strWord;

// get md5 of the password + challenge concatenation

md5_init(&state);

md5_append(&state, (const md5_byte_t *)cNull, 1);

md5_append(&state, (const md5_byte_t *)strPassword.c_str(),

strlen(strPassword.c_str()));

md5_append(&state, (const md5_byte_t *)md5ChallengeBinary.c_str(), 16);

md5_finish(&state, digest);

// convert this digest to a string representation of the hex values

// digest is the binary format of what we want to send

// szMD5PasswordToSend is the "string" hex format

string md5PasswordToSend = MD5DigestToHexString(digest);

DEBUG ? printf("MD5 Password To Send = %s\n", md5PasswordToSend.c_str()) : 0;

// put together the login sentence

writeSentence.AddWord("/login");

writeSentence.AddWord("=name=" + strUsername);

writeSentence.AddWord("=response=00" + md5PasswordToSend);

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Audiovox P965 Datový list Strana 125