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Fix old cs8->cs7 bug, bringed by rlogin.

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Obtained from:  FreeBSD 1.x
This commit is contained in:
Andrey A. Chernov 1994-10-11 20:04:49 +00:00
parent 8ea50e34cb
commit dec3cc9756
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=3509
1 changed files with 45 additions and 25 deletions
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70
sys/kern/tty_compat.c
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@ -31,7 +31,7 @@
* SUCH DAMAGE.
*
* @(#)tty_compat.c 8.1 (Berkeley) 6/10/93
* $Id: tty_compat.c,v 1.4 1994/08/25 10:01:00 bde Exp $
* $Id: tty_compat.c,v 1.5 1994/10/08 22:33:40 phk Exp $
*/
/*
@ -108,7 +108,7 @@ ttcompat(tp, com, data, flag)
}
sg->sg_erase = cc[VERASE];
sg->sg_kill = cc[VKILL];
sg->sg_flags = ttcompatgetflags(tp);
sg->sg_flags = tp->t_flags = ttcompatgetflags(tp);
break;
}
@ -205,7 +205,10 @@ ttcompat(tp, com, data, flag)
return (ttioctl(tp, TIOCSETA, &term, flag));
}
case TIOCLGET:
*(int *)data = ttcompatgetflags(tp)>>16;
tp->t_flags =
(ttcompatgetflags(tp) & 0xffff0000UL)
| (tp->t_flags & 0xffff);
*(int *)data = tp->t_flags>>16;
if (ttydebug)
printf("CLGET: returning %x\n", *(int *)data);
break;
@ -245,7 +248,12 @@ ttcompatgetflags(tp)
flags |= TANDEM;
if (iflag&ICRNL || oflag&ONLCR)
flags |= CRMOD;
if (cflag&PARENB) {
if ((cflag&CSIZE) == CS8) {
flags |= PASS8;
if (iflag&ISTRIP)
flags |= ANYP;
}
else if (cflag&PARENB) {
if (iflag&INPCK) {
if (cflag&PARODD)
flags |= ODDP;
@ -253,20 +261,18 @@ ttcompatgetflags(tp)
flags |= EVENP;
} else
flags |= EVENP | ODDP;
} else {
if ((tp->t_flags&LITOUT) && !(oflag&OPOST))
flags |= LITOUT;
if (tp->t_flags&PASS8)
flags |= PASS8;
}
if ((lflag&ICANON) == 0) {
/* fudge */
if (iflag&IXON || lflag&ISIG || lflag&IEXTEN || cflag&PARENB)
if (iflag&(INPCK|ISTRIP|IXON) || lflag&(IEXTEN|ISIG)
|| cflag&(CSIZE|PARENB) != CS8)
flags |= CBREAK;
else
flags |= RAW;
}
if (!(flags&RAW) && !(oflag&OPOST) && cflag&(CSIZE|PARENB) == CS8)
flags |= LITOUT;
if (cflag&MDMBUF)
flags |= MDMBUF;
if ((cflag&HUPCL) == 0)
@ -301,12 +307,10 @@ ttcompatsetflags(tp, t)
register long cflag = t->c_cflag;
if (flags & RAW) {
iflag &= IXOFF;
oflag &= ~OPOST;
iflag &= IXOFF|IXANY;
lflag &= ~(ECHOCTL|ISIG|ICANON|IEXTEN);
} else {
iflag |= BRKINT|IXON|IMAXBEL;
oflag |= OPOST;
lflag |= ISIG|IEXTEN|ECHOCTL; /* XXX was echoctl on ? */
if (flags & XTABS)
oflag |= OXTABS;
@ -329,17 +333,22 @@ ttcompatsetflags(tp, t)
else
lflag &= ~ECHO;
if (flags&(RAW|LITOUT|PASS8)) {
cflag &= ~(CSIZE|PARENB);
if (flags&(RAW|LITOUT|PASS8)) {
cflag |= CS8;
if ((flags&(RAW|PASS8)) == 0)
if (!(flags&(RAW|PASS8))
|| (flags&(RAW|PASS8|ANYP)) == (PASS8|ANYP))
iflag |= ISTRIP;
else
iflag &= ~ISTRIP;
if (flags&(RAW|LITOUT))
oflag &= ~OPOST;
else
oflag |= OPOST;
} else {
cflag &= ~CSIZE;
cflag |= CS7|PARENB;
iflag |= ISTRIP;
oflag |= OPOST;
}
if ((flags&(EVENP|ODDP)) == EVENP) {
iflag |= INPCK;
@ -349,8 +358,6 @@ ttcompatsetflags(tp, t)
cflag |= PARODD;
} else
iflag &= ~INPCK;
if (flags&LITOUT)
oflag &= ~OPOST; /* move earlier ? */
if (flags&TANDEM)
iflag |= IXOFF;
else
@ -402,17 +409,30 @@ ttcompatsetlflags(tp, t)
cflag |= HUPCL;
lflag &= ~(TOSTOP|FLUSHO|PENDIN|NOFLSH);
lflag |= flags&(TOSTOP|FLUSHO|PENDIN|NOFLSH);
if (flags&(LITOUT|PASS8)) {
iflag &= ~ISTRIP;
/*
* The next if-else statement is copied from above so don't bother
* checking it separately. We could avoid fiddlling with the
* character size if the mode is already RAW or if neither the
* LITOUT bit or the PASS8 bit is being changed, but the delta of
* the change is not available here and skipping the RAW case would
* make the code different from above.
*/
cflag &= ~(CSIZE|PARENB);
if (flags&(RAW|LITOUT|PASS8)) {
cflag |= CS8;
if (flags&LITOUT)
oflag &= ~OPOST;
if ((flags&(PASS8|RAW)) == 0)
if (!(flags&(RAW|PASS8))
|| (flags&(RAW|PASS8|ANYP)) == (PASS8|ANYP))
iflag |= ISTRIP;
} else if ((flags&RAW) == 0) {
cflag &= ~CSIZE;
else
iflag &= ~ISTRIP;
if (flags&(RAW|LITOUT))
oflag &= ~OPOST;
else
oflag |= OPOST;
} else {
cflag |= CS7|PARENB;
iflag |= ISTRIP;
oflag |= OPOST;
}
t->c_iflag = iflag;