Function getAuthParameter

src/auth.cpp:221–264

int getAuthParameter(const char *name, const char *header, char *result, int len)
{
    char *start, *end;

    start = stristr(header, name);
    while (start) {
        // Ensure that the preceding character is "," or whitespace - this
        // stops us finding "cnonce" when we search for "nonce".
        char preceding_char = start[-1];
        if ((preceding_char == ',')
            || isspace(preceding_char)) {
            break;
        }
        start = stristr(start+1, name);
    }

    if (!start) {
        result[0] = '\0';
        return 0;
    }
    start += strlen(name);
    if (*start++ != '=') {
        return getAuthParameter(name, start, result, len);
    }
    if (*start == '"') {
        start++;
        end = start;
        while (*end != '"' && *end) {
            end++;
        }
    } else {
        end = start + strcspn(start, " ,\"\r\n");
    }

    if (end - start >= len) {
        strncpy(result, start, len - 1);
        result[len - 1] = '\0';
    } else {
        strncpy(result, start, end - start);
        result[end - start] = '\0';
    }

    return end - start;
}

static int createAuthResponseMD5(
    const char* user, const char* password, int password_len,