uniqdosname
int uniqdosname(struct denode *, struct componentname *, u_char *);
status = B_FROM_POSIX_ERROR(uniqdosname(toDirFatNode, toBsdName.Data(), toShortName));
status = B_FROM_POSIX_ERROR(uniqdosname(fatDir, bsdName.Data(), newDirentry.de_Name));
status = B_FROM_POSIX_ERROR(uniqdosname(fatParent, bsdName.Data(), newEntry.de_Name));