FWXFERQ_OPEN
if ((xferq->flag & FWXFERQ_OPEN) == 0) {
xferq->flag |= FWXFERQ_OPEN;
if ((dbch->xferq.flag & FWXFERQ_OPEN) == 0) {
if ((ir->flag & FWXFERQ_OPEN) == 0)
ir->flag &= ~(FWXFERQ_OPEN |
if ((it->flag & FWXFERQ_OPEN) == 0)
it->flag &= ~(FWXFERQ_OPEN | FWXFERQ_MODEMASK | FWXFERQ_CHTAGMASK);
it->flag &= ~FWXFERQ_OPEN;
ir->flag &= ~FWXFERQ_OPEN;