extern size_t mtoUTF8 (const struct vol *, const char *, size_t , char *, size_t );
extern int copy_path_name (const struct vol *, char *, char *i);
extern size_t mtoUTF8 (const struct vol *, const char *, size_t , char *, size_t );
extern int copy_path_name (const struct vol *, char *, char *i);