udf_transname
int udf_transname(char *, char *, int, struct umount *);
if (udf_transname(pvd->vol_id, vid, sizeof(pvd->vol_id) - 1, NULL))
cs0len = udf_transname(cs0string, transname, cs0len, ump);
dir.d_namlen = udf_transname(&fid->data[fid->l_iu],