putctl
(void) putctl(q, M_UNHANGUP);
(void) putctl(q, M_HANGUP);
(void) putctl(q, M_BREAK);
if (putctl(rq, M_CTL) == 0) /* failure */
(void) putctl(WR(q), M_STARTI);
(void) putctl(q, M_UNHANGUP);
(void) putctl(q, M_HANGUP);
(void) putctl(wq, M_STOPI);
(void) putctl(wq, M_STOPI);
(void) putctl(wq, wq_msg);
extern int putctl(queue_t *, int);
(void) putctl(q, M_UNHANGUP);
(void) putctl(q, M_HANGUP);
(void) putctl(q, M_BREAK);
(void) putctl(rq, M_HANGUP);
(void) putctl(qcn_state->qcn_readq, M_HANGUP);
(void) putctl(qcn_state->qcn_readq, M_HANGUP);