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104 Bring back lx brand

*** 445,454 **** --- 445,466 ---- ptms_close(ptmp, PTMOPEN | PTLOCK); return (0); } + static boolean_t + ptmptsopencb(ptmptsopencb_arg_t arg) + { + struct pt_ttys *ptmp = (struct pt_ttys *)arg; + boolean_t rval; + + PT_ENTER_READ(ptmp); + rval = (ptmp->pt_nullmsg != NULL); + PT_EXIT_READ(ptmp); + return (rval); + } + /* * The wput procedure will only handle ioctl and flush messages. */ static void ptmwput(queue_t *qp, mblk_t *mp)
*** 572,581 **** --- 584,628 ---- ptmp->pt_rgid = ptop->pto_rgid; mutex_exit(&ptmp->pt_lock); miocack(qp, mp, 0, 0); break; } + case PTMPTSOPENCB: + { + mblk_t *dp; /* ioctl reply data */ + ptmptsopencb_t *ppocb; + + /* only allow the kernel to invoke this ioctl */ + if (iocp->ioc_cr != kcred) { + miocnak(qp, mp, 0, EINVAL); + break; + } + + /* we don't support transparent ioctls */ + ASSERT(iocp->ioc_count != TRANSPARENT); + if (iocp->ioc_count == TRANSPARENT) { + miocnak(qp, mp, 0, EINVAL); + break; + } + + /* allocate a response message */ + dp = allocb(sizeof (ptmptsopencb_t), BPRI_MED); + if (dp == NULL) { + miocnak(qp, mp, 0, EAGAIN); + break; + } + + /* initialize the ioctl results */ + ppocb = (ptmptsopencb_t *)dp->b_rptr; + ppocb->ppocb_func = ptmptsopencb; + ppocb->ppocb_arg = (ptmptsopencb_arg_t)ptmp; + + /* send the reply data */ + mioc2ack(mp, dp, sizeof (ptmptsopencb_t), 0); + qreply(qp, mp); + break; + } } break; case M_READ: /* Caused by ldterm - can not pass to slave */