CCP_ISOPEN
cf[0] = (isopen ? CCP_ISOPEN : 0) + (isup ? CCP_ISUP : 0);
cf[1] = CCP_ISOPEN | CCP_ISUP | CCP_ERROR | CCP_FATALERROR;
if ((cp->cp_flags & (CCP_ISOPEN | CCP_ISUP)) == CCP_ISOPEN &&
if ((mask & CCP_ISOPEN) && !(flags & CCP_ISOPEN)) {
((x)->cp_flags & CCP_ISOPEN)