TIOCSTOP TIOCSTART

SCCS-vsn: sys/kern/tty.c 4.18

diff --git a/usr/src/sys/kern/tty.c b/usr/src/sys/kern/tty.c
index 29a4483..5ed3408 100644 (file)
--- a/usr/src/sys/kern/tty.c
+++ b/usr/src/sys/kern/tty.c
@@ -1,4 +1,4 @@
-/*     tty.c   4.17    82/01/17        */
+/*     tty.c   4.18    82/01/19        */

 
 /*
  * TTY subroutines common to more than one line discipline
 
 /*
  * TTY subroutines common to more than one line discipline


@@ -460,6 +460,26 @@ caddr_t addr;
                else
                        (*linesw[tp->t_line].l_rint)(c, tp);
                break;
                else
                        (*linesw[tp->t_line].l_rint)(c, tp);
                break;

+
+       case TIOCSTOP:
+               c = spl5();
+               if ((tp->t_state & TS_TTSTOP) == 0) {
+                       tp->t_state |= TS_TTSTOP;
+                       (*cdevsw[major(tp->t_dev)].d_stop)(tp, 0);
+               }
+               splx(c);
+               break;
+
+       case TIOCSTART:
+               c = spl5();
+               if ((tp->t_state & TS_TTSTOP) || (tp->t_local & LFLUSHO)) {
+                       tp->t_state &= ~TS_TTSTOP;
+                       tp->t_local &= ~LFLUSHO;
+                       ttstart(tp);
+               }
+               splx(c);
+               break;
+

 /* end of locals */
 
        default:
 /* end of locals */
 
        default: