Function sha1hmac

gpcontrib/gpcloud/src/s3utils.cpp:11–19

not returning the normal hex result, might have '\0'

// not returning the normal hex result, might have '\0'
bool sha1hmac(const char *str, unsigned char out_hash[SHA_DIGEST_LENGTH], const char *secret,
              int secret_len) {
    if (!str) return false;

    // SHA_DIGEST_LENGTH is 20
    HMAC(EVP_sha1(), secret, secret_len, (unsigned char *)str, strlen(str), out_hash, NULL);

    return true;
}

bool sha1hmac_hex(const char *str, char out_hash_hex[SHA_DIGEST_STRING_LENGTH], const char *secret,
                  int secret_len) {