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| author | bde <bde@FreeBSD.org> | 1995-02-08 22:02:02 +0000 |
|---|---|---|
| committer | bde <bde@FreeBSD.org> | 1995-02-08 22:02:02 +0000 |
| commit | f568e81eb84b30f8efa15528f9564c40173e38e3 (patch) | |
| tree | 26d13509075c43311363d94ca9b538c494b634fd | |
| parent | 017b22dff1397a34d6111fafa42b76b4a643f9f5 (diff) | |
| download | FreeBSD-src-f568e81eb84b30f8efa15528f9564c40173e38e3.zip FreeBSD-src-f568e81eb84b30f8efa15528f9564c40173e38e3.tar.gz | |
Disable bogus attempt to switch from the TS_ISOPEN state to the
TS_WOPEN state when CLOCAL is toggled from on to off while there
is no carrier. There is no way back, and with sio there is no way
forward either (TS_ISOPEN will never be set again for the current
open). This bug was observed in 1.1 and was fixed in 1.1.5.
| -rw-r--r-- | sys/kern/tty.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/sys/kern/tty.c b/sys/kern/tty.c index 1bb7036..16b86ed 100644 --- a/sys/kern/tty.c +++ b/sys/kern/tty.c @@ -36,7 +36,7 @@ * SUCH DAMAGE. * * @(#)tty.c 8.8 (Berkeley) 1/21/94 - * $Id: tty.c,v 1.18 1995/01/06 14:56:42 bde Exp $ + * $Id: tty.c,v 1.19 1995/01/30 06:16:59 bde Exp $ */ #include <sys/param.h> @@ -783,8 +783,10 @@ ttioctl(tp, cmd, data, flag) if (!ISSET(tp->t_state, TS_CARR_ON) && ISSET(tp->t_cflag, CLOCAL) && !ISSET(t->c_cflag, CLOCAL)) { +#if 0 CLR(tp->t_state, TS_ISOPEN); SET(tp->t_state, TS_WOPEN); +#endif ttwakeup(tp); } tp->t_cflag = t->c_cflag; |
