[unix-history] / usr / src / sys / kern / tty_compat.c

/*
 * Copyright (c) 1982, 1986 Regents of the University of California.
 * All rights reserved.  The Berkeley software License Agreement
 * specifies the terms and conditions for redistribution.
 *
 *	@(#)tty_compat.c	7.5 (Berkeley) %G%
 */

/* 
 * mapping routines for old line discipline (yuck)
 */
#ifdef COMPAT_43

#include "param.h"
#include "systm.h"
#include "user.h"
#include "ioctl.h"
#include "tty.h"
#include "termios.h"
#include "proc.h"
#include "file.h"
#include "conf.h"
#include "dkstat.h"
#include "uio.h"
#include "kernel.h"
#include "syslog.h"

#include "machine/reg.h"

int ttydebug = 0;

/* XXX - fold these two tables into one */
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;
	caddr_t data;
{
	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;
		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[VFLUSHO] = 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[VFLUSHO];
		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 (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|MDMBUF|TOSTOP|FLUSHO|NOHANG|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;
		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 {
		cflag &= ~CSIZE;
		cflag |= CS7|PARENB;
	}
	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)
		lflag |= IXANY;
	else
		lflag &= ~IXANY;
	lflag &= ~(MDMBUF|TOSTOP|FLUSHO|NOHANG|PENDIN|NOFLSH);
	lflag |= flags&(MDMBUF|TOSTOP|FLUSHO|NOHANG|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 */
Commit	Line	Data
f73a43fc MT	1	/*
	2	* Copyright (c) 1982, 1986 Regents of the University of California.
	3	* All rights reserved. The Berkeley software License Agreement
	4	* specifies the terms and conditions for redistribution.
	5	*
a574d21e	6	* @(#)tty_compat.c 7.5 (Berkeley) %G%
f73a43fc MT	7	*/
	8
	9	/*
e39f9ea6	10	* mapping routines for old line discipline (yuck)
f73a43fc MT	11	*/
	12	#ifdef COMPAT_43
	13
f73a43fc MT	14	#include "param.h"
f73a43fc MT	15	#include "systm.h"
f73a43fc MT	16	#include "user.h"
	17	#include "ioctl.h"
	18	#include "tty.h"
	19	#include "termios.h"
	20	#include "proc.h"
	21	#include "file.h"
	22	#include "conf.h"
	23	#include "dkstat.h"
	24	#include "uio.h"
	25	#include "kernel.h"
	26	#include "syslog.h"
	27
d301d150 KM	28	#include "machine/reg.h"
d301d150 KM	29
e39f9ea6	30	int ttydebug = 0;
f73a43fc	31
e39f9ea6	32	/* XXX - fold these two tables into one */
f73a43fc MT	33	static struct speedtab compatspeeds[] = {
	34	38400, 15,
	35	19200, 14,
	36	9600, 13,
	37	4800, 12,
	38	2400, 11,
	39	1800, 10,
	40	1200, 9,
	41	600, 8,
	42	300, 7,
	43	200, 6,
	44	150, 5,
	45	134, 4,
	46	110, 3,
	47	75, 2,
	48	50, 1,
	49	0, 0,
	50	-1, -1,
	51	};
	52	static int compatspcodes[16] = {
	53	0, 50, 75, 110, 134, 150, 200, 300, 600, 1200,
	54	1800, 2400, 4800, 9600, 19200, 38400,
	55	};
	56
	57	/ARGSUSED/
	58	ttcompat(tp, com, data, flag)
	59	register struct tty *tp;
	60	caddr_t data;
	61	{
	62	switch(com) {
	63	case TIOCGETP: {
	64	register struct sgttyb sg = (struct sgttyb )data;
	65	register u_char *cc = tp->t_cc;
	66	register speed;
	67
	68	speed = ttspeedtab(tp->t_ospeed, compatspeeds);
	69	sg->sg_ospeed = (speed == -1) ? 15 : speed;
	70	if (tp->t_ispeed == 0)
	71	sg->sg_ispeed = sg->sg_ospeed;
	72	else {
	73	speed = ttspeedtab(tp->t_ispeed, compatspeeds);
	74	sg->sg_ispeed = (speed == -1) ? 15 : speed;
	75	}
f73a43fc MT	76	sg->sg_erase = cc[VERASE];
f73a43fc MT	77	sg->sg_kill = cc[VKILL];
e39f9ea6	78	sg->sg_flags = ttcompatgetflags(tp);
f73a43fc MT	79	break;
	80	}
	81
	82	case TIOCSETP:
	83	case TIOCSETN: {
	84	register struct sgttyb sg = (struct sgttyb )data;
	85	struct termios term;
	86	int speed;
	87
	88	term = tp->t_termios;
f73a43fc MT	89	if ((speed = sg->sg_ispeed) > 15 \|\| speed < 0)
	90	term.c_ispeed = speed;
	91	else
	92	term.c_ispeed = compatspcodes[speed];
	93	if ((speed = sg->sg_ospeed) > 15 \|\| speed < 0)
	94	term.c_ospeed = speed;
	95	else
	96	term.c_ospeed = compatspcodes[speed];
f73a43fc MT	97	term.c_cc[VERASE] = sg->sg_erase;
f73a43fc MT	98	term.c_cc[VKILL] = sg->sg_kill;
f73a43fc	99	tp->t_flags = (tp->t_flags&0xffff0000) \| sg->sg_flags;
f73a43fc MT	100	ttcompatsetflags(tp, &term);
	101	return (ttioctl(tp, com == TIOCSETP ? TIOCSETAF : TIOCSETA,
	102	&term, flag));
	103	}
	104
	105	case TIOCGETC: {
	106	struct tchars tc = (struct tchars )data;
	107	register u_char *cc = tp->t_cc;
	108
	109	tc->t_intrc = cc[VINTR];
	110	tc->t_quitc = cc[VQUIT];
	111	tc->t_startc = cc[VSTART];
	112	tc->t_stopc = cc[VSTOP];
	113	tc->t_eofc = cc[VEOF];
	114	tc->t_brkc = cc[VEOL];
	115	break;
	116	}
	117	case TIOCSETC: {
	118	struct tchars tc = (struct tchars )data;
	119	register u_char *cc = tp->t_cc;
	120
	121	cc[VINTR] = tc->t_intrc;
	122	cc[VQUIT] = tc->t_quitc;
	123	cc[VSTART] = tc->t_startc;
	124	cc[VSTOP] = tc->t_stopc;
	125	cc[VEOF] = tc->t_eofc;
	126	cc[VEOL] = tc->t_brkc;
	127	if (tc->t_brkc == -1)
e39f9ea6	128	cc[VEOL2] = _POSIX_VDISABLE;
f73a43fc MT	129	break;
	130	}
	131	case TIOCSLTC: {
	132	struct ltchars ltc = (struct ltchars )data;
	133	register u_char *cc = tp->t_cc;
	134
	135	cc[VSUSP] = ltc->t_suspc;
	136	cc[VDSUSP] = ltc->t_dsuspc;
	137	cc[VREPRINT] = ltc->t_rprntc;
	138	cc[VFLUSHO] = ltc->t_flushc;
	139	cc[VWERASE] = ltc->t_werasc;
	140	cc[VLNEXT] = ltc->t_lnextc;
	141	break;
	142	}
	143	case TIOCGLTC: {
	144	struct ltchars ltc = (struct ltchars )data;
	145	register u_char *cc = tp->t_cc;
	146
	147	ltc->t_suspc = cc[VSUSP];
	148	ltc->t_dsuspc = cc[VDSUSP];
	149	ltc->t_rprntc = cc[VREPRINT];
	150	ltc->t_flushc = cc[VFLUSHO];
	151	ltc->t_werasc = cc[VWERASE];
	152	ltc->t_lnextc = cc[VLNEXT];
	153	break;
	154	}
	155	case TIOCLBIS:
	156	case TIOCLBIC:
	157	case TIOCLSET: {
	158	struct termios term;
	159
	160	term = tp->t_termios;
	161	if (com == TIOCLSET)
e39f9ea6	162	tp->t_flags = (tp->t_flags&0xffff) \| (int )data<<16;
f73a43fc MT	163	else {
	164	tp->t_flags =
	165	(ttcompatgetflags(tp)&0xffff0000)\|(tp->t_flags&0xffff);
	166	if (com == TIOCLBIS)
e39f9ea6	167	tp->t_flags \|= (int )data<<16;
f73a43fc	168	else
e39f9ea6	169	tp->t_flags &= ~((int )data<<16);
f73a43fc MT	170	}
	171	ttcompatsetlflags(tp, &term);
	172	return (ttioctl(tp, TIOCSETA, &term, flag));
	173	}
	174	case TIOCLGET:
e39f9ea6 MT	175	(int )data = ttcompatgetflags(tp)>>16;
	176	if (ttydebug)
	177	printf("CLGET: returning %x\n", (int )data);
f73a43fc	178	break;
e39f9ea6	179
6ef1614c	180	case OTIOCGETD:
e39f9ea6 MT	181	(int )data = tp->t_line ? tp->t_line : 2;
	182	break;
	183
6ef1614c	184	case OTIOCSETD: {
e39f9ea6 MT	185	int ldisczero = 0;
	186
	187	return(ttioctl(tp, TIOCSETD,
	188	(int )data == 2 ? (caddr_t)&ldisczero : data, flag));
a574d21e KM	189
	190	case OTIOCCONS:
	191	(int )data = 1;
	192	return(ttioctl(tp, TIOCCONS, data, flag));
e39f9ea6 MT	193	}
e39f9ea6 MT	194
f73a43fc MT	195	default:
	196	return (-1);
	197	}
	198	return(0);
	199	}
	200
f73a43fc MT	201	ttcompatgetflags(tp)
	202	register struct tty *tp;
	203	{
	204	register long iflag = tp->t_iflag;
	205	register long lflag = tp->t_lflag;
	206	register long oflag = tp->t_oflag;
	207	register long cflag = tp->t_cflag;
	208	register flags = 0;
	209
	210	if (iflag&IXOFF)
	211	flags \|= TANDEM;
	212	if (iflag&ICRNL \|\| oflag&ONLCR)
	213	flags \|= CRMOD;
	214	if (cflag&PARENB) {
	215	if (iflag&INPCK) {
	216	if (cflag&PARODD)
	217	flags \|= ODDP;
	218	else
	219	flags \|= EVENP;
	220	} else
	221	flags \|= EVENP \| ODDP;
	222	} else {
	223	if ((tp->t_flags&LITOUT) && !(oflag&OPOST))
	224	flags \|= LITOUT;
	225	if (tp->t_flags&PASS8)
	226	flags \|= PASS8;
	227	}
	228
	229	if ((lflag&ICANON) == 0) {
	230	/* fudge */
	231	if (iflag&IXON \|\| lflag&ISIG \|\| lflag&IEXTEN \|\| cflag&PARENB)
	232	flags \|= CBREAK;
	233	else
	234	flags \|= RAW;
	235	}
	236	if (oflag&OXTABS)
	237	flags \|= XTABS;
f73a43fc	238	if (lflag&ECHOE)
e39f9ea6	239	flags \|= CRTERA\|CRTBS;
f73a43fc	240	if (lflag&ECHOKE)
e39f9ea6	241	flags \|= CRTKIL\|CRTBS;
f73a43fc MT	242	if (lflag&ECHOPRT)
	243	flags \|= PRTERA;
	244	if (lflag&ECHOCTL)
	245	flags \|= CTLECH;
	246	if ((iflag&IXANY) == 0)
	247	flags \|= DECCTQ;
	248	flags \|= lflag&(ECHO\|MDMBUF\|TOSTOP\|FLUSHO\|NOHANG\|PENDIN\|NOFLSH);
e39f9ea6 MT	249	if (ttydebug)
e39f9ea6 MT	250	printf("getflags: %x\n", flags);
f73a43fc MT	251	return (flags);
	252	}
	253
	254	ttcompatsetflags(tp, t)
	255	register struct tty *tp;
	256	register struct termios *t;
	257	{
	258	register flags = tp->t_flags;
	259	register long iflag = t->c_iflag;
	260	register long oflag = t->c_oflag;
	261	register long lflag = t->c_lflag;
	262	register long cflag = t->c_cflag;
	263
	264	if (flags & RAW) {
	265	iflag &= IXOFF;
	266	oflag &= ~OPOST;
85a1af63	267	lflag &= ~(ECHOCTL\|ISIG\|ICANON\|IEXTEN);
f73a43fc	268	} else {
85a1af63	269	iflag \|= BRKINT\|IXON\|IMAXBEL;
f73a43fc	270	oflag \|= OPOST;
85a1af63	271	lflag \|= ISIG\|IEXTEN;
f73a43fc MT	272	if (flags & XTABS)
	273	oflag \|= OXTABS;
	274	else
	275	oflag &= ~OXTABS;
	276	if (flags & CBREAK)
	277	lflag &= ~ICANON;
	278	else
	279	lflag \|= ICANON;
	280	if (flags&CRMOD) {
	281	iflag \|= ICRNL;
	282	oflag \|= ONLCR;
	283	} else {
	284	iflag &= ~ICRNL;
	285	oflag &= ~ONLCR;
	286	}
	287	}
	288	if (flags&ECHO)
	289	lflag \|= ECHO;
	290	else
	291	lflag &= ~ECHO;
	292
	293	if (flags&(RAW\|LITOUT\|PASS8)) {
	294	cflag &= ~(CSIZE\|PARENB);
	295	cflag \|= CS8;
	296	if ((flags&(RAW\|PASS8)) == 0)
	297	iflag \|= ISTRIP;
	298	} else {
	299	cflag &= ~CSIZE;
	300	cflag \|= CS7\|PARENB;
	301	}
	302	if ((flags&(EVENP\|ODDP)) == EVENP) {
	303	iflag \|= INPCK;
	304	cflag &= ~PARODD;
	305	} else if ((flags&(EVENP\|ODDP)) == ODDP) {
	306	iflag \|= INPCK;
	307	cflag \|= PARODD;
	308	} else
	309	iflag &= ~INPCK;
	310	if (flags&LITOUT)
	311	oflag &= ~OPOST; /* move earlier ? */
	312	if (flags&TANDEM)
	313	iflag \|= IXOFF;
	314	else
	315	iflag &= ~IXOFF;
	316	t->c_iflag = iflag;
	317	t->c_oflag = oflag;
	318	t->c_lflag = lflag;
	319	t->c_cflag = cflag;
	320	}
	321
f73a43fc MT	322	ttcompatsetlflags(tp, t)
	323	register struct tty *tp;
	324	register struct termios *t;
	325	{
	326	register flags = tp->t_flags;
	327	register long iflag = t->c_iflag;
	328	register long oflag = t->c_oflag;
	329	register long lflag = t->c_lflag;
	330	register long cflag = t->c_cflag;
e39f9ea6	331
f73a43fc MT	332	if (flags&CRTERA)
	333	lflag \|= ECHOE;
	334	else
e39f9ea6	335	lflag &= ~ECHOE;
f73a43fc MT	336	if (flags&CRTKIL)
	337	lflag \|= ECHOKE;
	338	else
	339	lflag &= ~ECHOKE;
	340	if (flags&PRTERA)
	341	lflag \|= ECHOPRT;
	342	else
	343	lflag &= ~ECHOPRT;
	344	if (flags&CTLECH)
	345	lflag \|= ECHOCTL;
	346	else
	347	lflag &= ~ECHOCTL;
	348	if ((flags&DECCTQ) == 0)
	349	lflag \|= IXANY;
	350	else
	351	lflag &= ~IXANY;
f73a43fc MT	352	lflag &= ~(MDMBUF\|TOSTOP\|FLUSHO\|NOHANG\|PENDIN\|NOFLSH);
f73a43fc MT	353	lflag \|= flags&(MDMBUF\|TOSTOP\|FLUSHO\|NOHANG\|PENDIN\|NOFLSH);
f73a43fc MT	354	if (flags&(LITOUT\|PASS8)) {
	355	iflag &= ~ISTRIP;
	356	cflag &= ~(CSIZE\|PARENB);
	357	cflag \|= CS8;
	358	if (flags&LITOUT)
	359	oflag &= ~OPOST;
	360	if ((flags&(PASS8\|RAW)) == 0)
	361	iflag \|= ISTRIP;
	362	} else if ((flags&RAW) == 0) {
	363	cflag &= ~CSIZE;
	364	cflag \|= CS7\|PARENB;
	365	oflag \|= OPOST;
	366	}
	367	t->c_iflag = iflag;
	368	t->c_oflag = oflag;
	369	t->c_lflag = lflag;
	370	t->c_cflag = cflag;
	371	}
	372	#endif /* COMPAT_43 */