NetBSD/sys/kern/tty_compat.c

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/* $NetBSD: tty_compat.c,v 1.20 1995/03/31 03:07:41 christos Exp $ */
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/*-
* Copyright (c) 1982, 1986, 1991, 1993
* The Regents of the University of California. All rights reserved.
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*
* 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
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*/
/*
* mapping routines for old line discipline (yuck)
*/
#if defined(COMPAT_43) || defined(COMPAT_SUNOS) || defined(COMPAT_SVR4)
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#include <sys/param.h>
#include <sys/systm.h>
#include <sys/ioctl.h>
#include <sys/proc.h>
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#include <sys/tty.h>
#include <sys/termios.h>
#include <sys/file.h>
#include <sys/conf.h>
#include <sys/kernel.h>
#include <sys/syslog.h>
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int ttydebug = 0;
static struct speedtab compatspeeds[] = {
#define MAX_SPEED 17
{ 115200, 17 },
{ 57600, 16 },
{ 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 },
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};
static int compatspcodes[] = {
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0, 50, 75, 110, 134, 150, 200, 300, 600, 1200,
1800, 2400, 4800, 9600, 19200, 38400, 57600, 115200
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};
/*ARGSUSED*/
ttcompat(tp, com, data, flag, p)
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register struct tty *tp;
u_long com;
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caddr_t data;
int flag;
struct proc *p;
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{
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) ? MAX_SPEED : speed;
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if (tp->t_ispeed == 0)
sg->sg_ispeed = sg->sg_ospeed;
else {
speed = ttspeedtab(tp->t_ispeed, compatspeeds);
sg->sg_ispeed = (speed == -1) ? MAX_SPEED : speed;
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}
sg->sg_erase = cc[VERASE];
sg->sg_kill = cc[VKILL];
sg->sg_flags = ttcompatgetflags(tp);
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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) > MAX_SPEED || speed < 0)
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term.c_ispeed = speed;
else
term.c_ispeed = compatspcodes[speed];
if ((speed = sg->sg_ospeed) > MAX_SPEED || speed < 0)
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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 = (ttcompatgetflags(tp)&0xffff0000) | (sg->sg_flags&0xffff);
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ttcompatsetflags(tp, &term);
return (ttioctl(tp, com == TIOCSETP ? TIOCSETAF : TIOCSETA,
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(caddr_t)&term, flag, p));
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}
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;
long flags;
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term = tp->t_termios;
flags = ttcompatgetflags(tp);
switch (com) {
case TIOCLSET:
tp->t_flags = (flags&0xffff) | (*(int *)data<<16);
break;
case TIOCLBIS:
tp->t_flags = flags | (*(int *)data<<16);
break;
case TIOCLBIC:
tp->t_flags = flags & ~(*(int *)data<<16);
break;
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}
ttcompatsetlflags(tp, &term);
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return (ttioctl(tp, TIOCSETA, (caddr_t)&term, flag, p));
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}
case TIOCLGET:
*(int *)data = ttcompatgetflags(tp)>>16;
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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,
p));
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}
case OTIOCCONS:
*(int *)data = 1;
return (ttioctl(tp, TIOCCONS, data, flag, p));
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case TIOCHPCL:
tp->t_cflag |= HUPCL;
break;
case TIOCGSID:
if (tp->t_session == NULL)
return ENOTTY;
if (tp->t_session->s_leader == NULL)
return ENOTTY;
*(int *) data = tp->t_session->s_leader->p_pid;
break;
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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)
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flags |= TANDEM;
if (iflag & ICRNL || oflag & ONLCR)
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flags |= CRMOD;
if (cflag & PARENB) {
if (iflag & INPCK) {
if (cflag & PARODD)
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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;
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}
if ((lflag & ICANON) == 0) {
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/* fudge */
if (iflag&IXON || lflag&ISIG || lflag&IEXTEN || cflag&PARENB)
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flags |= CBREAK;
else
flags |= RAW;
}
if (cflag & MDMBUF)
flags |= MDMBUF;
if ((cflag & HUPCL) == 0)
flags |= NOHANG;
if (oflag & OXTABS)
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flags |= XTABS;
if (lflag & ECHOE)
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flags |= CRTERA|CRTBS;
if (lflag & ECHOKE)
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flags |= CRTKIL|CRTBS;
if (lflag & ECHOPRT)
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flags |= PRTERA;
if (lflag & ECHOCTL)
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flags |= CTLECH;
if ((iflag & IXANY) == 0)
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flags |= DECCTQ;
flags |= lflag & (ECHO|TOSTOP|FLUSHO|PENDIN|NOFLSH);
if (ttydebug)
printf("getflags: %x\n", flags);
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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 & TANDEM)
iflag |= IXOFF;
else
iflag &= ~IXOFF;
if (flags & ECHO)
lflag |= ECHO;
else
lflag &= ~ECHO;
if (flags & CRMOD) {
iflag |= ICRNL;
oflag |= ONLCR;
} else {
iflag &= ~ICRNL;
oflag &= ~ONLCR;
}
if (flags & XTABS)
oflag |= OXTABS;
else
oflag &= ~OXTABS;
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if (flags & RAW) {
iflag &= IXOFF;
lflag &= ~(ISIG|ICANON|IEXTEN);
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} else {
iflag |= BRKINT|IXON|IMAXBEL;
lflag |= ISIG|IEXTEN;
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if (flags & CBREAK)
lflag &= ~ICANON;
else
lflag |= ICANON;
}
switch (flags & ANYP) {
case EVENP:
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iflag |= INPCK;
cflag &= ~PARODD;
break;
case ODDP:
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iflag |= INPCK;
cflag |= PARODD;
break;
default:
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iflag &= ~INPCK;
break;
}
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if (flags & (RAW|LITOUT|PASS8)) {
cflag &= ~(CSIZE|PARENB);
cflag |= CS8;
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if ((flags & (RAW|PASS8)) == 0)
iflag |= ISTRIP;
else
iflag &= ~ISTRIP;
if ((flags & (RAW|LITOUT)) == 0)
oflag |= OPOST;
else
oflag &= ~OPOST;
} else {
cflag &= ~CSIZE;
cflag |= CS7|PARENB;
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iflag |= ISTRIP;
oflag |= OPOST;
}
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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;
/* Nothing we can do with CRTBS. */
if (flags & PRTERA)
lflag |= ECHOPRT;
else
lflag &= ~ECHOPRT;
if (flags & CRTERA)
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lflag |= ECHOE;
else
lflag &= ~ECHOE;
/* Nothing we can do with TILDE. */
if (flags & MDMBUF)
cflag |= MDMBUF;
else
cflag &= ~MDMBUF;
if (flags & NOHANG)
cflag &= ~HUPCL;
else
cflag |= HUPCL;
if (flags & CRTKIL)
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lflag |= ECHOKE;
else
lflag &= ~ECHOKE;
if (flags & CTLECH)
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lflag |= ECHOCTL;
else
lflag &= ~ECHOCTL;
if ((flags & DECCTQ) == 0)
iflag |= IXANY;
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else
iflag &= ~IXANY;
lflag &= ~(TOSTOP|FLUSHO|PENDIN|NOFLSH);
lflag |= flags&(TOSTOP|FLUSHO|PENDIN|NOFLSH);
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if (flags & (RAW|LITOUT|PASS8)) {
cflag &= ~(CSIZE|PARENB);
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cflag |= CS8;
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if ((flags & (RAW|PASS8)) == 0)
iflag |= ISTRIP;
else
iflag &= ~ISTRIP;
if ((flags & (RAW|LITOUT)) == 0)
oflag |= OPOST;
else
oflag &= ~OPOST;
} else {
cflag &= ~CSIZE;
cflag |= CS7|PARENB;
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iflag |= ISTRIP;
oflag |= OPOST;
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}
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t->c_iflag = iflag;
t->c_oflag = oflag;
t->c_lflag = lflag;
t->c_cflag = cflag;
}
#endif /* COMPAT_43 || COMPAT_SUNOS || COMPAT_SVR4 */