[unix-history] / usr / src / libexec / getty / subr.c

/*
 * Copyright (c) 1983 The Regents of the University of California.
 * All rights reserved.
 *
 * %sccs.include.redist.c%
 */

#ifndef lint
static char sccsid[] = "@(#)subr.c	5.11 (Berkeley) %G%";
#endif /* not lint */

/*
 * Melbourne getty.
 */
#define USE_OLD_TTY
#include <sgtty.h>
#include <string.h>
#include <unistd.h>

#include "gettytab.h"
#include "extern.h"

extern	struct sgttyb tmode;
extern	struct tchars tc;
extern	struct ltchars ltc;

/*
 * Get a table entry.
 */
void
gettable(name, buf, area)
	char *name, *buf, *area;
{
	register struct gettystrs *sp;
	register struct gettynums *np;
	register struct gettyflags *fp;
	register n;

	hopcount = 0;		/* new lookup, start fresh */
	if (getent(buf, name) != 1)
		return;

	for (sp = gettystrs; sp->field; sp++)
		sp->value = getstr(sp->field, &area);
	for (np = gettynums; np->field; np++) {
		n = getnum(np->field);
		if (n == -1)
			np->set = 0;
		else {
			np->set = 1;
			np->value = n;
		}
	}
	for (fp = gettyflags; fp->field; fp++) {
		n = getflag(fp->field);
		if (n == -1)
			fp->set = 0;
		else {
			fp->set = 1;
			fp->value = n ^ fp->invrt;
		}
	}
}

void
gendefaults()
{
	register struct gettystrs *sp;
	register struct gettynums *np;
	register struct gettyflags *fp;

	for (sp = gettystrs; sp->field; sp++)
		if (sp->value)
			sp->defalt = sp->value;
	for (np = gettynums; np->field; np++)
		if (np->set)
			np->defalt = np->value;
	for (fp = gettyflags; fp->field; fp++)
		if (fp->set)
			fp->defalt = fp->value;
		else
			fp->defalt = fp->invrt;
}

void
setdefaults()
{
	register struct gettystrs *sp;
	register struct gettynums *np;
	register struct gettyflags *fp;

	for (sp = gettystrs; sp->field; sp++)
		if (!sp->value)
			sp->value = sp->defalt;
	for (np = gettynums; np->field; np++)
		if (!np->set)
			np->value = np->defalt;
	for (fp = gettyflags; fp->field; fp++)
		if (!fp->set)
			fp->value = fp->defalt;
}

static char **
charnames[] = {
	&ER, &KL, &IN, &QU, &XN, &XF, &ET, &BK,
	&SU, &DS, &RP, &FL, &WE, &LN, 0
};

static char *
charvars[] = {
	&tmode.sg_erase, &tmode.sg_kill, &tc.t_intrc,
	&tc.t_quitc, &tc.t_startc, &tc.t_stopc,
	&tc.t_eofc, &tc.t_brkc, &ltc.t_suspc,
	&ltc.t_dsuspc, &ltc.t_rprntc, &ltc.t_flushc,
	&ltc.t_werasc, &ltc.t_lnextc, 0
};

void
setchars()
{
	register int i;
	register char *p;

	for (i = 0; charnames[i]; i++) {
		p = *charnames[i];
		if (p && *p)
			*charvars[i] = *p;
		else
			*charvars[i] = '\377';
	}
}

long
setflags(n)
	int n;
{
	register long f;

	switch (n) {
	case 0:
		if (F0set)
			return(F0);
		break;
	case 1:
		if (F1set)
			return(F1);
		break;
	default:
		if (F2set)
			return(F2);
		break;
	}

	f = 0;

	if (AP)
		f |= ANYP;
	else if (OP)
		f |= ODDP;
	else if (EP)
		f |= EVENP;

	if (UC)
		f |= LCASE;

	if (NL)
		f |= CRMOD;

	f |= delaybits();

	if (n == 1) {		/* read mode flags */
		if (RW)
			f |= RAW;
		else
			f |= CBREAK;
		return (f);
	}

	if (!HT)
		f |= XTABS;

	if (n == 0)
		return (f);

	if (CB)
		f |= CRTBS;

	if (CE)
		f |= CRTERA;

	if (CK)
		f |= CRTKIL;

	if (PE)
		f |= PRTERA;

	if (EC)
		f |= ECHO;

	if (XC)
		f |= CTLECH;

	if (DX)
		f |= DECCTQ;

	return (f);
}

struct delayval {
	unsigned	delay;		/* delay in ms */
	int		bits;
};

/*
 * below are random guesses, I can't be bothered checking
 */

struct delayval	crdelay[] = {
	{ 1,		CR1 },
	{ 2,		CR2 },
	{ 3,		CR3 },
	{ 83,		CR1 },
	{ 166,		CR2 },
	{ 0,		CR3 },
};

struct delayval nldelay[] = {
	{ 1,		NL1 },		/* special, calculated */
	{ 2,		NL2 },
	{ 3,		NL3 },
	{ 100,		NL2 },
	{ 0,		NL3 },
};

struct delayval	bsdelay[] = {
	{ 1,		BS1 },
	{ 0,		0 },
};

struct delayval	ffdelay[] = {
	{ 1,		FF1 },
	{ 1750,		FF1 },
	{ 0,		FF1 },
};

struct delayval	tbdelay[] = {
	{ 1,		 TAB1 },
	{ 2,		 TAB2 },
	{ 3,		XTABS },	/* this is expand tabs */
	{ 100,		 TAB1 },
	{ 0,		 TAB2 },
};

int
delaybits()
{
	register int f;

	f  = adelay(CD, crdelay);
	f |= adelay(ND, nldelay);
	f |= adelay(FD, ffdelay);
	f |= adelay(TD, tbdelay);
	f |= adelay(BD, bsdelay);
	return (f);
}

int
adelay(ms, dp)
	register ms;
	register struct delayval *dp;
{
	if (ms == 0)
		return (0);
	while (dp->delay && ms > dp->delay)
		dp++;
	return (dp->bits);
}

char	editedhost[32];

void
edithost(pat)
	register char *pat;
{
	register char *host = HN;
	register char *res = editedhost;

	if (!pat)
		pat = "";
	while (*pat) {
		switch (*pat) {

		case '#':
			if (*host)
				host++;
			break;

		case '@':
			if (*host)
				*res++ = *host++;
			break;

		default:
			*res++ = *pat;
			break;

		}
		if (res == &editedhost[sizeof editedhost - 1]) {
			*res = '\0';
			return;
		}
		pat++;
	}
	if (*host)
		strncpy(res, host, sizeof editedhost - (res - editedhost) - 1);
	else
		*res = '\0';
	editedhost[sizeof editedhost - 1] = '\0';
}

struct speedtab {
	int	speed;
	int	uxname;
} speedtab[] = {
	{ 50,	  B50 },
	{ 75,	  B75 },
	{ 110,	 B110 },
	{ 134,	 B134 },
	{ 150,	 B150 },
	{ 200,	 B200 },
	{ 300,	 B300 },
	{ 600,	 B600 },
	{ 1200,	B1200 },
	{ 1800,	B1800 },
	{ 2400,	B2400 },
	{ 4800,	B4800 },
	{ 9600,	B9600 },
	{ 19200, EXTA },
	{ 19,	 EXTA },	/* for people who say 19.2K */
	{ 38400, EXTB },
	{ 38,	 EXTB },
	{ 7200,	 EXTB },	/* alternative */
	{ 0 }
};

int
speed(val)
	int val;
{
	register struct speedtab *sp;

	if (val <= 15)
		return (val);

	for (sp = speedtab; sp->speed; sp++)
		if (sp->speed == val)
			return (sp->uxname);
	
	return (B300);		/* default in impossible cases */
}

void
makeenv(env)
	char *env[];
{
	static char termbuf[128] = "TERM=";
	register char *p, *q;
	register char **ep;

	ep = env;
	if (TT && *TT) {
		strcat(termbuf, TT);
		*ep++ = termbuf;
	}
	if (p = EV) {
		q = p;
		while (q = strchr(q, ',')) {
			*q++ = '\0';
			*ep++ = p;
			p = q;
		}
		if (*p)
			*ep++ = p;
	}
	*ep = (char *)0;
}

/*
 * This speed select mechanism is written for the Develcon DATASWITCH.
 * The Develcon sends a string of the form "B{speed}\n" at a predefined
 * baud rate. This string indicates the user's actual speed.
 * The routine below returns the terminal type mapped from derived speed.
 */
struct	portselect {
	char	*ps_baud;
	char	*ps_type;
} portspeeds[] = {
	{ "B110",	"std.110" },
	{ "B134",	"std.134" },
	{ "B150",	"std.150" },
	{ "B300",	"std.300" },
	{ "B600",	"std.600" },
	{ "B1200",	"std.1200" },
	{ "B2400",	"std.2400" },
	{ "B4800",	"std.4800" },
	{ "B9600",	"std.9600" },
	{ "B19200",	"std.19200" },
	{ 0 }
};

char *
portselector()
{
	char c, baud[20], *type = "default";
	register struct portselect *ps;
	int len;

	alarm(5*60);
	for (len = 0; len < sizeof (baud) - 1; len++) {
		if (read(STDIN_FILENO, &c, 1) <= 0)
			break;
		c &= 0177;
		if (c == '\n' || c == '\r')
			break;
		if (c == 'B')
			len = 0;	/* in case of leading garbage */
		baud[len] = c;
	}
	baud[len] = '\0';
	for (ps = portspeeds; ps->ps_baud; ps++)
		if (strcmp(ps->ps_baud, baud) == 0) {
			type = ps->ps_type;
			break;
		}
	sleep(2);	/* wait for connection to complete */
	return (type);
}

/*
 * This auto-baud speed select mechanism is written for the Micom 600
 * portselector. Selection is done by looking at how the character '\r'
 * is garbled at the different speeds.
 */
#include <sys/time.h>

char *
autobaud()
{
	int rfds;
	struct timeval timeout;
	char c, *type = "9600-baud";
	int null = 0;

	ioctl(0, TIOCFLUSH, &null);
	rfds = 1 << 0;
	timeout.tv_sec = 5;
	timeout.tv_usec = 0;
	if (select(32, (fd_set *)&rfds, (fd_set *)NULL,
	    (fd_set *)NULL, &timeout) <= 0)
		return (type);
	if (read(STDIN_FILENO, &c, sizeof(char)) != sizeof(char))
		return (type);
	timeout.tv_sec = 0;
	timeout.tv_usec = 20;
	(void) select(32, (fd_set *)NULL, (fd_set *)NULL,
	    (fd_set *)NULL, &timeout);
	ioctl(0, TIOCFLUSH, &null);
	switch (c & 0377) {

	case 0200:		/* 300-baud */
		type = "300-baud";
		break;

	case 0346:		/* 1200-baud */
		type = "1200-baud";
		break;

	case  015:		/* 2400-baud */
	case 0215:
		type = "2400-baud";
		break;

	default:		/* 4800-baud */
		type = "4800-baud";
		break;

	case 0377:		/* 9600-baud */
		type = "9600-baud";
		break;
	}
	return (type);
}
Commit	Line	Data
8a3f4fd4	1	/*
9d72a529 KB	2	* Copyright (c) 1983 The Regents of the University of California.
	3	* All rights reserved.
	4	*
836fe169	5	* %sccs.include.redist.c%
8a3f4fd4 DF	6	*/
8a3f4fd4 DF	7
3eea9327	8	#ifndef lint
34129485	9	static char sccsid[] = "@(#)subr.c 5.11 (Berkeley) %G%";
9d72a529	10	#endif /* not lint */
3eea9327 SL	11
	12	/*
	13	* Melbourne getty.
	14	*/
244691fc	15	#define USE_OLD_TTY
3eea9327	16	#include <sgtty.h>
2de7ea86	17	#include <string.h>
34129485 KB	18	#include <unistd.h>
34129485 KB	19
3eea9327	20	#include "gettytab.h"
34129485	21	#include "extern.h"
3eea9327 SL	22
	23	extern struct sgttyb tmode;
	24	extern struct tchars tc;
	25	extern struct ltchars ltc;
	26
	27	/*
	28	* Get a table entry.
	29	*/
34129485	30	void
3eea9327 SL	31	gettable(name, buf, area)
	32	char name, buf, *area;
	33	{
	34	register struct gettystrs *sp;
	35	register struct gettynums *np;
	36	register struct gettyflags *fp;
	37	register n;
	38
	39	hopcount = 0; /* new lookup, start fresh */
	40	if (getent(buf, name) != 1)
	41	return;
	42
	43	for (sp = gettystrs; sp->field; sp++)
	44	sp->value = getstr(sp->field, &area);
	45	for (np = gettynums; np->field; np++) {
	46	n = getnum(np->field);
	47	if (n == -1)
	48	np->set = 0;
	49	else {
	50	np->set = 1;
	51	np->value = n;
	52	}
	53	}
	54	for (fp = gettyflags; fp->field; fp++) {
	55	n = getflag(fp->field);
	56	if (n == -1)
	57	fp->set = 0;
	58	else {
	59	fp->set = 1;
	60	fp->value = n ^ fp->invrt;
	61	}
	62	}
	63	}
	64
34129485	65	void
3eea9327 SL	66	gendefaults()
	67	{
	68	register struct gettystrs *sp;
	69	register struct gettynums *np;
	70	register struct gettyflags *fp;
	71
	72	for (sp = gettystrs; sp->field; sp++)
	73	if (sp->value)
	74	sp->defalt = sp->value;
	75	for (np = gettynums; np->field; np++)
	76	if (np->set)
	77	np->defalt = np->value;
	78	for (fp = gettyflags; fp->field; fp++)
	79	if (fp->set)
	80	fp->defalt = fp->value;
	81	else
	82	fp->defalt = fp->invrt;
	83	}
	84
34129485	85	void
3eea9327 SL	86	setdefaults()
	87	{
	88	register struct gettystrs *sp;
	89	register struct gettynums *np;
	90	register struct gettyflags *fp;
	91
	92	for (sp = gettystrs; sp->field; sp++)
	93	if (!sp->value)
	94	sp->value = sp->defalt;
	95	for (np = gettynums; np->field; np++)
	96	if (!np->set)
	97	np->value = np->defalt;
	98	for (fp = gettyflags; fp->field; fp++)
	99	if (!fp->set)
	100	fp->value = fp->defalt;
	101	}
	102
	103	static char **
	104	charnames[] = {
	105	&ER, &KL, &IN, &QU, &XN, &XF, &ET, &BK,
	106	&SU, &DS, &RP, &FL, &WE, &LN, 0
	107	};
	108
	109	static char *
	110	charvars[] = {
	111	&tmode.sg_erase, &tmode.sg_kill, &tc.t_intrc,
	112	&tc.t_quitc, &tc.t_startc, &tc.t_stopc,
	113	&tc.t_eofc, &tc.t_brkc, &ltc.t_suspc,
	114	&ltc.t_dsuspc, &ltc.t_rprntc, &ltc.t_flushc,
	115	&ltc.t_werasc, &ltc.t_lnextc, 0
	116	};
	117
34129485	118	void
3eea9327 SL	119	setchars()
	120	{
	121	register int i;
	122	register char *p;
	123
	124	for (i = 0; charnames[i]; i++) {
	125	p = *charnames[i];
	126	if (p && *p)
	127	charvars[i] = p;
	128	else
4eaf53e2	129	*charvars[i] = '\377';
3eea9327 SL	130	}
	131	}
	132
	133	long
	134	setflags(n)
34129485	135	int n;
3eea9327 SL	136	{
	137	register long f;
	138
	139	switch (n) {
	140	case 0:
	141	if (F0set)
	142	return(F0);
	143	break;
	144	case 1:
	145	if (F1set)
	146	return(F1);
	147	break;
	148	default:
	149	if (F2set)
	150	return(F2);
	151	break;
	152	}
	153
	154	f = 0;
	155
	156	if (AP)
	157	f \|= ANYP;
	158	else if (OP)
	159	f \|= ODDP;
	160	else if (EP)
	161	f \|= EVENP;
	162
	163	if (UC)
	164	f \|= LCASE;
	165
	166	if (NL)
	167	f \|= CRMOD;
	168
	169	f \|= delaybits();
	170
	171	if (n == 1) { /* read mode flags */
	172	if (RW)
	173	f \|= RAW;
	174	else
	175	f \|= CBREAK;
	176	return (f);
	177	}
	178
	179	if (!HT)
	180	f \|= XTABS;
	181
	182	if (n == 0)
	183	return (f);
	184
	185	if (CB)
	186	f \|= CRTBS;
	187
	188	if (CE)
	189	f \|= CRTERA;
	190
7f170415 RC	191	if (CK)
	192	f \|= CRTKIL;
	193
3eea9327 SL	194	if (PE)
	195	f \|= PRTERA;
	196
	197	if (EC)
	198	f \|= ECHO;
	199
	200	if (XC)
	201	f \|= CTLECH;
	202
e5943133 KM	203	if (DX)
	204	f \|= DECCTQ;
	205
3eea9327 SL	206	return (f);
	207	}
	208
	209	struct delayval {
	210	unsigned delay; /* delay in ms */
	211	int bits;
	212	};
	213
	214	/*
	215	* below are random guesses, I can't be bothered checking
	216	*/
	217
	218	struct delayval crdelay[] = {
34129485 KB	219	{ 1, CR1 },
	220	{ 2, CR2 },
	221	{ 3, CR3 },
	222	{ 83, CR1 },
	223	{ 166, CR2 },
	224	{ 0, CR3 },
3eea9327 SL	225	};
	226
	227	struct delayval nldelay[] = {
34129485 KB	228	{ 1, NL1 }, /* special, calculated */
	229	{ 2, NL2 },
	230	{ 3, NL3 },
	231	{ 100, NL2 },
	232	{ 0, NL3 },
3eea9327 SL	233	};
	234
	235	struct delayval bsdelay[] = {
34129485 KB	236	{ 1, BS1 },
34129485 KB	237	{ 0, 0 },
3eea9327 SL	238	};
	239
	240	struct delayval ffdelay[] = {
34129485 KB	241	{ 1, FF1 },
	242	{ 1750, FF1 },
	243	{ 0, FF1 },
3eea9327 SL	244	};
	245
	246	struct delayval tbdelay[] = {
34129485 KB	247	{ 1, TAB1 },
	248	{ 2, TAB2 },
	249	{ 3, XTABS }, /* this is expand tabs */
	250	{ 100, TAB1 },
	251	{ 0, TAB2 },
3eea9327 SL	252	};
3eea9327 SL	253
34129485	254	int
3eea9327 SL	255	delaybits()
3eea9327 SL	256	{
34129485	257	register int f;
3eea9327 SL	258
	259	f = adelay(CD, crdelay);
	260	f \|= adelay(ND, nldelay);
	261	f \|= adelay(FD, ffdelay);
	262	f \|= adelay(TD, tbdelay);
	263	f \|= adelay(BD, bsdelay);
	264	return (f);
	265	}
	266
34129485	267	int
3eea9327 SL	268	adelay(ms, dp)
	269	register ms;
	270	register struct delayval *dp;
	271	{
	272	if (ms == 0)
	273	return (0);
	274	while (dp->delay && ms > dp->delay)
	275	dp++;
	276	return (dp->bits);
	277	}
	278
	279	char editedhost[32];
	280
34129485	281	void
3eea9327 SL	282	edithost(pat)
	283	register char *pat;
	284	{
	285	register char *host = HN;
	286	register char *res = editedhost;
	287
	288	if (!pat)
	289	pat = "";
	290	while (*pat) {
	291	switch (*pat) {
	292
	293	case '#':
	294	if (*host)
	295	host++;
	296	break;
	297
	298	case '@':
	299	if (*host)
	300	res++ = host++;
	301	break;
	302
	303	default:
	304	res++ = pat;
	305	break;
	306
	307	}
	308	if (res == &editedhost[sizeof editedhost - 1]) {
	309	*res = '\0';
	310	return;
	311	}
	312	pat++;
	313	}
	314	if (*host)
	315	strncpy(res, host, sizeof editedhost - (res - editedhost) - 1);
	316	else
	317	*res = '\0';
	318	editedhost[sizeof editedhost - 1] = '\0';
	319	}
	320
	321	struct speedtab {
	322	int speed;
	323	int uxname;
	324	} speedtab[] = {
34129485 KB	325	{ 50, B50 },
	326	{ 75, B75 },
	327	{ 110, B110 },
	328	{ 134, B134 },
	329	{ 150, B150 },
	330	{ 200, B200 },
	331	{ 300, B300 },
	332	{ 600, B600 },
	333	{ 1200, B1200 },
	334	{ 1800, B1800 },
	335	{ 2400, B2400 },
	336	{ 4800, B4800 },
	337	{ 9600, B9600 },
	338	{ 19200, EXTA },
	339	{ 19, EXTA }, /* for people who say 19.2K */
	340	{ 38400, EXTB },
	341	{ 38, EXTB },
	342	{ 7200, EXTB }, /* alternative */
	343	{ 0 }
3eea9327 SL	344	};
3eea9327 SL	345
34129485	346	int
3eea9327	347	speed(val)
34129485	348	int val;
3eea9327 SL	349	{
	350	register struct speedtab *sp;
	351
	352	if (val <= 15)
ec2b493d	353	return (val);
3eea9327 SL	354
	355	for (sp = speedtab; sp->speed; sp++)
	356	if (sp->speed == val)
	357	return (sp->uxname);
	358
	359	return (B300); /* default in impossible cases */
	360	}
	361
34129485	362	void
3eea9327 SL	363	makeenv(env)
	364	char *env[];
	365	{
	366	static char termbuf[128] = "TERM=";
	367	register char p, q;
	368	register char **ep;
3eea9327 SL	369
	370	ep = env;
	371	if (TT && *TT) {
	372	strcat(termbuf, TT);
	373	*ep++ = termbuf;
	374	}
	375	if (p = EV) {
	376	q = p;
34129485	377	while (q = strchr(q, ',')) {
3eea9327 SL	378	*q++ = '\0';
	379	*ep++ = p;
	380	p = q;
	381	}
	382	if (*p)
	383	*ep++ = p;
	384	}
	385	ep = (char )0;
	386	}
	387
	388	/*
	389	* This speed select mechanism is written for the Develcon DATASWITCH.
	390	* The Develcon sends a string of the form "B{speed}\n" at a predefined
	391	* baud rate. This string indicates the user's actual speed.
	392	* The routine below returns the terminal type mapped from derived speed.
	393	*/
	394	struct portselect {
	395	char *ps_baud;
	396	char *ps_type;
	397	} portspeeds[] = {
	398	{ "B110", "std.110" },
	399	{ "B134", "std.134" },
	400	{ "B150", "std.150" },
	401	{ "B300", "std.300" },
	402	{ "B600", "std.600" },
	403	{ "B1200", "std.1200" },
	404	{ "B2400", "std.2400" },
	405	{ "B4800", "std.4800" },
	406	{ "B9600", "std.9600" },
84e05cce	407	{ "B19200", "std.19200" },
3eea9327 SL	408	{ 0 }
	409	};
	410
	411	char *
	412	portselector()
	413	{
	414	char c, baud[20], *type = "default";
	415	register struct portselect *ps;
	416	int len;
	417
	418	alarm(5*60);
	419	for (len = 0; len < sizeof (baud) - 1; len++) {
897c1d4e	420	if (read(STDIN_FILENO, &c, 1) <= 0)
3eea9327 SL	421	break;
	422	c &= 0177;
	423	if (c == '\n' \|\| c == '\r')
	424	break;
	425	if (c == 'B')
	426	len = 0; /* in case of leading garbage */
	427	baud[len] = c;
	428	}
	429	baud[len] = '\0';
	430	for (ps = portspeeds; ps->ps_baud; ps++)
	431	if (strcmp(ps->ps_baud, baud) == 0) {
	432	type = ps->ps_type;
	433	break;
	434	}
	435	sleep(2); /* wait for connection to complete */
	436	return (type);
	437	}
ec2b493d RC	438
	439	/*
	440	* This auto-baud speed select mechanism is written for the Micom 600
	441	* portselector. Selection is done by looking at how the character '\r'
	442	* is garbled at the different speeds.
	443	*/
	444	#include <sys/time.h>
	445
	446	char *
	447	autobaud()
	448	{
	449	int rfds;
	450	struct timeval timeout;
	451	char c, *type = "9600-baud";
	452	int null = 0;
	453
	454	ioctl(0, TIOCFLUSH, &null);
	455	rfds = 1 << 0;
	456	timeout.tv_sec = 5;
	457	timeout.tv_usec = 0;
3d35c7ff KB	458	if (select(32, (fd_set )&rfds, (fd_set )NULL,
3d35c7ff KB	459	(fd_set *)NULL, &timeout) <= 0)
ec2b493d	460	return (type);
897c1d4e	461	if (read(STDIN_FILENO, &c, sizeof(char)) != sizeof(char))
ec2b493d RC	462	return (type);
	463	timeout.tv_sec = 0;
	464	timeout.tv_usec = 20;
3d35c7ff KB	465	(void) select(32, (fd_set )NULL, (fd_set )NULL,
3d35c7ff KB	466	(fd_set *)NULL, &timeout);
ec2b493d RC	467	ioctl(0, TIOCFLUSH, &null);
	468	switch (c & 0377) {
	469
	470	case 0200: /* 300-baud */
	471	type = "300-baud";
	472	break;
	473
	474	case 0346: /* 1200-baud */
	475	type = "1200-baud";
	476	break;
	477
	478	case 015: /* 2400-baud */
	479	case 0215:
	480	type = "2400-baud";
	481	break;
	482
	483	default: /* 4800-baud */
	484	type = "4800-baud";
	485	break;
	486
	487	case 0377: /* 9600-baud */
	488	type = "9600-baud";
	489	break;
	490	}
	491	return (type);
	492	}