extern int getdirparams (const struct vol *, u_int16_t, struct path *,
struct dir *, char *, size_t *);
extern int setdirparams (struct vol *, struct path *, u_int16_t, char *);
extern int getdirparams (const struct vol *, u_int16_t, struct path *,
struct dir *, char *, size_t *);
extern int setdirparams (struct vol *, struct path *, u_int16_t, char *);