generate_fname
e = generate_fname(fep, type, &f, &id, &v);
e = generate_fname(fep, flp - flist, &l, &id, &v1);
e = generate_fname(fep, FT_DIR, &f, &id, &v1);
e = generate_fname(fep, FT_DEV, &f, &id, &v1);
e = generate_fname(dfep, flp - flist, &newf, &id, &v1);
e = generate_fname(fep, FT_SYM, &f, &id, &v1);
int generate_fname(fent_t *, int, pathname_t *, int *, int *);