check_file_secrecy_fd
if (fd == -1 || check_file_secrecy_fd(fd, conf_path, &sz) == -1) {
if (check_file_secrecy_fd(fd, keyfile, &fsize)) {
if (check_file_secrecy_fd(fd, policy_file, &sz)) {
extern int check_file_secrecy_fd(int, char *, size_t *);