extern int setdeskowner __P((const uid_t, const gid_t));
extern int setdirowner __P((const struct vol *, const char *, const uid_t, const gid_t));
extern int setfilmode __P((char *, mode_t , struct stat *));
extern int setdeskowner __P((const uid_t, const gid_t));
extern int setdirowner __P((const struct vol *, const char *, const uid_t, const gid_t));
extern int setfilmode __P((char *, mode_t , struct stat *));