int use_conf(char *test_path)
{
    int ret;
    size_t flags = 0;
    char filename[1024], errstr[1024];
    char *buffer;
    FILE *infile, *conffile;
    json_t *json;
    json_error_t error;

    sprintf(filename, "%s%cinput", test_path, dir_sep);
    if (!(infile = fopen(filename, "rb"))) {
        fprintf(stderr, "Could not open \"%s\"\n", filename);
        return 2;
    }

    sprintf(filename, "%s%cenv", test_path, dir_sep);
    conffile = fopen(filename, "rb");
    if (conffile) {
        read_conf(conffile);
        fclose(conffile);
    }

    if (conf.indent < 0 || conf.indent > 255) {
        fprintf(stderr, "invalid value for JSON_INDENT: %d\n", conf.indent);
        return 2;
    }

    if (conf.indent)
        flags |= JSON_INDENT(conf.indent);

    if (conf.compact)
        flags |= JSON_COMPACT;

    if (conf.ensure_ascii)
        flags |= JSON_ENSURE_ASCII;

    if (conf.preserve_order)
        flags |= JSON_PRESERVE_ORDER;

    if (conf.sort_keys)
        flags |= JSON_SORT_KEYS;

    if (conf.have_hashseed)
        json_object_seed(conf.hashseed);

    if (conf.strip) {
        /* Load to memory, strip leading and trailing whitespace */
        buffer = loadfile(infile);
        json = json_loads(strip(buffer), 0, &error);
        free(buffer);
    }
    else
        json = json_loadf(infile, 0, &error);

    fclose(infile);

    if (!json) {
        sprintf(errstr, "%d %d %d\n%s\n",
                error.line, error.column, error.position,
                error.text);

        ret = cmpfile(errstr, test_path, "error");
        return ret;
    }

    buffer = json_dumps(json, flags);
    ret = cmpfile(buffer, test_path, "output");
    free(buffer);
    json_decref(json);

    return ret;
}
Weaknesses in this category are related to the design and implementation of data confidentiality and integrity. Frequently these deal with the use of encoding techniques, encryption libraries, and hashing algorithms. The weaknesses in this category could lead to a degradation of the quality data if they are not addressed.