NLC_OPEN
if ((lvap->va_flags & APPEND) && (nflags & (NLC_OPEN | NLC_TRUNCATE))) {
if ((nflags & (NLC_OPEN | NLC_WRITE)) == (NLC_OPEN | NLC_WRITE)) {
nd->nl_flags |= NLC_OPEN;
NLC_OPEN | NLC_TRUNCATE | NLC_RENAME_SRC | \