VTTOIF
#define vtonfs_dtype(a) (((u_int32_t)(a)) >= 9 ? IFTODT(VTTOIF(VNON)) : \
IFTODT(VTTOIF(a)))
sb->st_mode = node->tn_mode | VTTOIF(vp->v_type);
#define MAKEIMODE(indx, mode) (int)(VTTOIF(indx) | (mode))
sb->st_mode = (ip->i_mode & ~IFMT) | VTTOIF(vp->v_type);