C_OPEN_0
n = i + ((flg & C_OPEN_0) != 0);
if ((flg & C_OPEN_0) &&
open = cbp->c_flg & C_OPEN_0;
ncbp->c_flg = (ocb.c.b) ? C_OPEN_0 : 0;
i = (flg & C_OPEN_0) ? 6 : 5;