F_CHECK_SENT
if (host->flags & (F_DISABLE | F_CHECK_SENT) ||
host->flags |= F_CHECK_SENT|F_CHECK_DONE;
host->flags |= F_CHECK_SENT;
host->flags &= ~(F_CHECK_SENT|F_CHECK_DONE);
if ((host->flags & (F_CHECK_SENT|F_CHECK_DONE)) == F_CHECK_SENT)
host->flags &= ~(F_CHECK_SENT|F_CHECK_DONE);
host->flags |= F_CHECK_SENT;
host->flags |= (F_CHECK_SENT|F_CHECK_DONE);
host->flags |= (F_CHECK_SENT|F_CHECK_DONE);