4.4BSD/usr/src/sys/kern/tty_compat.c
/*-
* Copyright (c) 1982, 1986, 1991, 1993
* The Regents of the University of California. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the University of
* California, Berkeley and its contributors.
* 4. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* @(#)tty_compat.c 8.1 (Berkeley) 6/10/93
*/
/*
* mapping routines for old line discipline (yuck)
*/
#if defined(COMPAT_43) || defined(COMPAT_SUNOS)
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/ioctl.h>
#include <sys/proc.h>
#include <sys/tty.h>
#include <sys/termios.h>
#include <sys/file.h>
#include <sys/conf.h>
#include <sys/kernel.h>
#include <sys/syslog.h>
int ttydebug = 0;
static struct speedtab compatspeeds[] = {
{ 38400, 15 },
{ 19200, 14 },
{ 9600, 13 },
{ 4800, 12 },
{ 2400, 11 },
{ 1800, 10 },
{ 1200, 9 },
{ 600, 8 },
{ 300, 7 },
{ 200, 6 },
{ 150, 5 },
{ 134, 4 },
{ 110, 3 },
{ 75, 2 },
{ 50, 1 },
{ 0, 0 },
{ -1, -1 },
};
static int compatspcodes[16] = {
0, 50, 75, 110, 134, 150, 200, 300, 600, 1200,
1800, 2400, 4800, 9600, 19200, 38400,
};
/*ARGSUSED*/
ttcompat(tp, com, data, flag)
register struct tty *tp;
int com;
caddr_t data;
int flag;
{
switch (com) {
case TIOCGETP: {
register struct sgttyb *sg = (struct sgttyb *)data;
register u_char *cc = tp->t_cc;
register speed;
speed = ttspeedtab(tp->t_ospeed, compatspeeds);
sg->sg_ospeed = (speed == -1) ? 15 : speed;
if (tp->t_ispeed == 0)
sg->sg_ispeed = sg->sg_ospeed;
else {
speed = ttspeedtab(tp->t_ispeed, compatspeeds);
sg->sg_ispeed = (speed == -1) ? 15 : speed;
}
sg->sg_erase = cc[VERASE];
sg->sg_kill = cc[VKILL];
sg->sg_flags = ttcompatgetflags(tp);
break;
}
case TIOCSETP:
case TIOCSETN: {
register struct sgttyb *sg = (struct sgttyb *)data;
struct termios term;
int speed;
term = tp->t_termios;
if ((speed = sg->sg_ispeed) > 15 || speed < 0)
term.c_ispeed = speed;
else
term.c_ispeed = compatspcodes[speed];
if ((speed = sg->sg_ospeed) > 15 || speed < 0)
term.c_ospeed = speed;
else
term.c_ospeed = compatspcodes[speed];
term.c_cc[VERASE] = sg->sg_erase;
term.c_cc[VKILL] = sg->sg_kill;
tp->t_flags = tp->t_flags&0xffff0000 | sg->sg_flags&0xffff;
ttcompatsetflags(tp, &term);
return (ttioctl(tp, com == TIOCSETP ? TIOCSETAF : TIOCSETA,
&term, flag));
}
case TIOCGETC: {
struct tchars *tc = (struct tchars *)data;
register u_char *cc = tp->t_cc;
tc->t_intrc = cc[VINTR];
tc->t_quitc = cc[VQUIT];
tc->t_startc = cc[VSTART];
tc->t_stopc = cc[VSTOP];
tc->t_eofc = cc[VEOF];
tc->t_brkc = cc[VEOL];
break;
}
case TIOCSETC: {
struct tchars *tc = (struct tchars *)data;
register u_char *cc = tp->t_cc;
cc[VINTR] = tc->t_intrc;
cc[VQUIT] = tc->t_quitc;
cc[VSTART] = tc->t_startc;
cc[VSTOP] = tc->t_stopc;
cc[VEOF] = tc->t_eofc;
cc[VEOL] = tc->t_brkc;
if (tc->t_brkc == -1)
cc[VEOL2] = _POSIX_VDISABLE;
break;
}
case TIOCSLTC: {
struct ltchars *ltc = (struct ltchars *)data;
register u_char *cc = tp->t_cc;
cc[VSUSP] = ltc->t_suspc;
cc[VDSUSP] = ltc->t_dsuspc;
cc[VREPRINT] = ltc->t_rprntc;
cc[VDISCARD] = ltc->t_flushc;
cc[VWERASE] = ltc->t_werasc;
cc[VLNEXT] = ltc->t_lnextc;
break;
}
case TIOCGLTC: {
struct ltchars *ltc = (struct ltchars *)data;
register u_char *cc = tp->t_cc;
ltc->t_suspc = cc[VSUSP];
ltc->t_dsuspc = cc[VDSUSP];
ltc->t_rprntc = cc[VREPRINT];
ltc->t_flushc = cc[VDISCARD];
ltc->t_werasc = cc[VWERASE];
ltc->t_lnextc = cc[VLNEXT];
break;
}
case TIOCLBIS:
case TIOCLBIC:
case TIOCLSET: {
struct termios term;
term = tp->t_termios;
if (com == TIOCLSET)
tp->t_flags = (tp->t_flags&0xffff) | *(int *)data<<16;
else {
tp->t_flags =
(ttcompatgetflags(tp)&0xffff0000)|(tp->t_flags&0xffff);
if (com == TIOCLBIS)
tp->t_flags |= *(int *)data<<16;
else
tp->t_flags &= ~(*(int *)data<<16);
}
ttcompatsetlflags(tp, &term);
return (ttioctl(tp, TIOCSETA, &term, flag));
}
case TIOCLGET:
*(int *)data = ttcompatgetflags(tp)>>16;
if (ttydebug)
printf("CLGET: returning %x\n", *(int *)data);
break;
case OTIOCGETD:
*(int *)data = tp->t_line ? tp->t_line : 2;
break;
case OTIOCSETD: {
int ldisczero = 0;
return (ttioctl(tp, TIOCSETD,
*(int *)data == 2 ? (caddr_t)&ldisczero : data, flag));
}
case OTIOCCONS:
*(int *)data = 1;
return (ttioctl(tp, TIOCCONS, data, flag));
default:
return (-1);
}
return (0);
}
ttcompatgetflags(tp)
register struct tty *tp;
{
register long iflag = tp->t_iflag;
register long lflag = tp->t_lflag;
register long oflag = tp->t_oflag;
register long cflag = tp->t_cflag;
register flags = 0;
if (iflag&IXOFF)
flags |= TANDEM;
if (iflag&ICRNL || oflag&ONLCR)
flags |= CRMOD;
if (cflag&PARENB) {
if (iflag&INPCK) {
if (cflag&PARODD)
flags |= ODDP;
else
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)
flags |= CBREAK;
else
flags |= RAW;
}
if (cflag&MDMBUF)
flags |= MDMBUF;
if ((cflag&HUPCL) == 0)
flags |= NOHANG;
if (oflag&OXTABS)
flags |= XTABS;
if (lflag&ECHOE)
flags |= CRTERA|CRTBS;
if (lflag&ECHOKE)
flags |= CRTKIL|CRTBS;
if (lflag&ECHOPRT)
flags |= PRTERA;
if (lflag&ECHOCTL)
flags |= CTLECH;
if ((iflag&IXANY) == 0)
flags |= DECCTQ;
flags |= lflag&(ECHO|TOSTOP|FLUSHO|PENDIN|NOFLSH);
if (ttydebug)
printf("getflags: %x\n", flags);
return (flags);
}
ttcompatsetflags(tp, t)
register struct tty *tp;
register struct termios *t;
{
register flags = tp->t_flags;
register long iflag = t->c_iflag;
register long oflag = t->c_oflag;
register long lflag = t->c_lflag;
register long cflag = t->c_cflag;
if (flags & RAW) {
iflag &= IXOFF;
oflag &= ~OPOST;
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;
else
oflag &= ~OXTABS;
if (flags & CBREAK)
lflag &= ~ICANON;
else
lflag |= ICANON;
if (flags&CRMOD) {
iflag |= ICRNL;
oflag |= ONLCR;
} else {
iflag &= ~ICRNL;
oflag &= ~ONLCR;
}
}
if (flags&ECHO)
lflag |= ECHO;
else
lflag &= ~ECHO;
if (flags&(RAW|LITOUT|PASS8)) {
cflag &= ~(CSIZE|PARENB);
cflag |= CS8;
if ((flags&(RAW|PASS8)) == 0)
iflag |= ISTRIP;
else
iflag &= ~ISTRIP;
} else {
cflag &= ~CSIZE;
cflag |= CS7|PARENB;
iflag |= ISTRIP;
}
if ((flags&(EVENP|ODDP)) == EVENP) {
iflag |= INPCK;
cflag &= ~PARODD;
} else if ((flags&(EVENP|ODDP)) == ODDP) {
iflag |= INPCK;
cflag |= PARODD;
} else
iflag &= ~INPCK;
if (flags&LITOUT)
oflag &= ~OPOST; /* move earlier ? */
if (flags&TANDEM)
iflag |= IXOFF;
else
iflag &= ~IXOFF;
t->c_iflag = iflag;
t->c_oflag = oflag;
t->c_lflag = lflag;
t->c_cflag = cflag;
}
ttcompatsetlflags(tp, t)
register struct tty *tp;
register struct termios *t;
{
register flags = tp->t_flags;
register long iflag = t->c_iflag;
register long oflag = t->c_oflag;
register long lflag = t->c_lflag;
register long cflag = t->c_cflag;
if (flags&CRTERA)
lflag |= ECHOE;
else
lflag &= ~ECHOE;
if (flags&CRTKIL)
lflag |= ECHOKE;
else
lflag &= ~ECHOKE;
if (flags&PRTERA)
lflag |= ECHOPRT;
else
lflag &= ~ECHOPRT;
if (flags&CTLECH)
lflag |= ECHOCTL;
else
lflag &= ~ECHOCTL;
if ((flags&DECCTQ) == 0)
iflag |= IXANY;
else
iflag &= ~IXANY;
if (flags & MDMBUF)
cflag |= MDMBUF;
else
cflag &= ~MDMBUF;
if (flags&NOHANG)
cflag &= ~HUPCL;
else
cflag |= HUPCL;
lflag &= ~(TOSTOP|FLUSHO|PENDIN|NOFLSH);
lflag |= flags&(TOSTOP|FLUSHO|PENDIN|NOFLSH);
if (flags&(LITOUT|PASS8)) {
iflag &= ~ISTRIP;
cflag &= ~(CSIZE|PARENB);
cflag |= CS8;
if (flags&LITOUT)
oflag &= ~OPOST;
if ((flags&(PASS8|RAW)) == 0)
iflag |= ISTRIP;
} else if ((flags&RAW) == 0) {
cflag &= ~CSIZE;
cflag |= CS7|PARENB;
oflag |= OPOST;
}
t->c_iflag = iflag;
t->c_oflag = oflag;
t->c_lflag = lflag;
t->c_cflag = cflag;
}
#endif /* COMPAT_43 || COMPAT_SUNOS */