extern int setdirowner (const struct vol *, const char *, const uid_t, const gid_t);
extern int setfilunixmode (const struct vol *, struct path*, const mode_t);
extern int setfilowner (const struct vol *, const uid_t, const gid_t, struct path*);
extern int setdirowner (const struct vol *, const char *, const uid_t, const gid_t);
extern int setfilunixmode (const struct vol *, struct path*, const mode_t);
extern int setfilowner (const struct vol *, const uid_t, const gid_t, struct path*);