BSD 4.4 Lite Usr.bin Sources

9 files changed, 1729 insertions, 0 deletions

diff --git a/usr.bin/tset/Makefile b/usr.bin/tset/Makefile
new file mode 100644
index 0000000..126cf321
--- /dev/null
+++ b/usr.bin/tset/Makefile
@@ -0,0 +1,11 @@
+#	@(#)Makefile	8.1 (Berkeley) 6/9/93
+
+PROG=	tset
+SRCS=	map.c misc.c set.c term.c tset.c wrterm.c
+
+DPADD=	${LIBTERMCAP}
+LDADD=	-ltermcap
+LINKS=	${BINDIR}/tset ${BINDIR}/reset
+MLINKS=	tset.1 reset.1
+
+.include <bsd.prog.mk>
diff --git a/usr.bin/tset/extern.h b/usr.bin/tset/extern.h
new file mode 100644
index 0000000..0465a66
--- /dev/null
+++ b/usr.bin/tset/extern.h
@@ -0,0 +1,60 @@
+/*-
+ * Copyright (c) 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.
+ *
+ *	@(#)extern.h	8.1 (Berkeley) 6/9/93
+ */
+
+/* This should be in <termcap.h> instead. */
+extern char PC;
+extern short ospeed;
+int	 tgetent __P((char *, char *));
+int	 tgetflag __P((char *));
+int	 tgetnum __P((char *));
+char	*tgetstr __P((char *, char **));
+char	*tgoto __P((char *, int, int));
+int	 tputs __P((char *, int, void (*) __P((int))));
+
+extern struct termios mode, oldmode;
+extern int columns, isreset, lines;
+extern int erasechar, intrchar, killchar;
+
+void	 add_mapping __P((char *, char *));
+void	 cat __P((char *));
+void	 err __P((const char *, ...));
+char	*get_termcap_entry __P((char *, char **));
+char	*mapped __P((char *));
+void	 outc __P((int));
+void	 reset_mode __P((void));
+void	 set_control_chars __P((void));
+void	 set_conversions __P((int));
+void	 set_init __P((void));
+void	 wrtermcap __P((char *));
diff --git a/usr.bin/tset/map.c b/usr.bin/tset/map.c
new file mode 100644
index 0000000..56cb725
--- /dev/null
+++ b/usr.bin/tset/map.c
@@ -0,0 +1,263 @@
+/*-
+ * Copyright (c) 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.
+ */
+
+#ifndef lint
+static char sccsid[] = "@(#)map.c	8.1 (Berkeley) 6/9/93";
+#endif /* not lint */
+
+#include <sys/types.h>
+#include <termios.h>
+#include <errno.h>
+#include <stdlib.h>
+#include <string.h>
+#include "extern.h"
+
+int	baudrate __P((char *));
+
+/* Baud rate conditionals for mapping. */
+#define	GT		0x01
+#define	EQ		0x02
+#define	LT		0x04
+#define	NOT		0x08
+#define	GE		(GT | EQ)
+#define	LE		(LT | EQ)
+
+typedef struct map {
+	struct map *next;	/* Linked list of maps. */
+	char *porttype;		/* Port type, or "" for any. */
+	char *type;		/* Terminal type to select. */
+	int conditional;	/* Baud rate conditionals bitmask. */
+	int speed;		/* Baud rate to compare against. */
+} MAP;
+
+MAP *cur, *maplist;
+
+/*
+ * Syntax for -m:
+ * [port-type][test baudrate]:terminal-type
+ * The baud rate tests are: >, <, @, =, !
+ */
+void
+add_mapping(port, arg)
+	char *port, *arg;
+{
+	MAP *mapp;
+	char *copy, *p, *termp;
+
+	copy = strdup(arg);
+	mapp = malloc((u_int)sizeof(MAP));
+	if (copy == NULL || mapp == NULL)
+		err("%s", strerror(errno));
+	mapp->next = NULL;
+	if (maplist == NULL)
+		cur = maplist = mapp;
+	else {
+		cur->next = mapp;
+		cur =  mapp;
+	}
+
+	mapp->porttype = arg;
+	mapp->conditional = 0;
+
+	arg = strpbrk(arg, "><@=!:");
+
+	if (arg == NULL) {			/* [?]term */
+		mapp->type = mapp->porttype;
+		mapp->porttype = NULL;
+		goto done;
+	}
+
+	if (arg == mapp->porttype)		/* [><@=! baud]:term */
+		termp = mapp->porttype = NULL;
+	else
+		termp = arg;
+
+	for (;; ++arg)				/* Optional conditionals. */
+		switch(*arg) {
+		case '<':
+			if (mapp->conditional & GT)
+				goto badmopt;
+			mapp->conditional |= LT;
+			break;
+		case '>':
+			if (mapp->conditional & LT)
+				goto badmopt;
+			mapp->conditional |= GT;
+			break;
+		case '@':
+		case '=':			/* Not documented. */
+			mapp->conditional |= EQ;
+			break;
+		case '!':
+			mapp->conditional |= NOT;
+			break;
+		default:
+			goto next;
+		}
+
+next:	if (*arg == ':') {
+		if (mapp->conditional)
+			goto badmopt;
+		++arg;
+	} else {				/* Optional baudrate. */
+		arg = index(p = arg, ':');
+		if (arg == NULL)
+			goto badmopt;
+		*arg++ = '\0';
+		mapp->speed = baudrate(p);
+	}
+
+	if (*arg == NULL)			/* Non-optional type. */
+		goto badmopt;
+
+	mapp->type = arg;
+
+	/* Terminate porttype, if specified. */
+	if (termp != NULL)
+		*termp = '\0';
+
+	/* If a NOT conditional, reverse the test. */
+	if (mapp->conditional & NOT)
+		mapp->conditional = ~mapp->conditional & (EQ | GT | LT);
+
+	/* If user specified a port with an option flag, set it. */
+done:	if (port) {
+		if (mapp->porttype)
+badmopt:		err("illegal -m option format: %s", copy);
+		mapp->porttype = port;
+	}
+
+#ifdef MAPDEBUG
+	(void)printf("port: %s\n", mapp->porttype ? mapp->porttype : "ANY");
+	(void)printf("type: %s\n", mapp->type);
+	(void)printf("conditional: ");
+	p = "";
+	if (mapp->conditional & GT) {
+		(void)printf("GT");
+		p = "/";
+	}
+	if (mapp->conditional & EQ) {
+		(void)printf("%sEQ", p);
+		p = "/";
+	}
+	if (mapp->conditional & LT)
+		(void)printf("%sLT", p);
+	(void)printf("\nspeed: %d\n", mapp->speed);
+#endif
+}
+
+/*
+ * Return the type of terminal to use for a port of type 'type', as specified
+ * by the first applicable mapping in 'map'.  If no mappings apply, return
+ * 'type'.
+ */
+char *
+mapped(type)
+	char *type;
+{
+	MAP *mapp;
+	int match;
+
+	for (mapp = maplist; mapp; mapp = mapp->next)
+		if (mapp->porttype == NULL || !strcmp(mapp->porttype, type)) {
+			switch (mapp->conditional) {
+			case 0:			/* No test specified. */
+				match = 1;
+				break;
+			case EQ:
+				match = (ospeed == mapp->speed);
+				break;
+			case GE:
+				match = (ospeed >= mapp->speed);
+				break;
+			case GT:
+				match = (ospeed > mapp->speed);
+				break;
+			case LE:
+				match = (ospeed <= mapp->speed);
+				break;
+			case LT:
+				match = (ospeed < mapp->speed);
+				break;
+			}
+			if (match)
+				return (mapp->type);
+		}
+	/* No match found; return given type. */
+	return (type);
+}
+
+typedef struct speeds {
+	char	*string;
+	int	speed;
+} SPEEDS;
+
+SPEEDS speeds[] = {
+	"0",		B0,
+	"50",		B50,
+	"75",		B75,
+	"110",		B110,
+	"134",		B134,
+	"134.5",	B134,
+	"150",		B150,
+	"200",		B200,
+	"300",		B300,
+	"600",		B600,
+	"1200",		B1200,
+	"1800",		B1800,
+	"2400",		B2400,
+	"4800",		B4800,
+	"9600",		B9600,
+	"19200",	B19200,
+	"38400",	B38400,
+	"exta",		B19200,
+	"extb",		B38400,
+	NULL
+};
+
+int
+baudrate(rate)
+	char *rate;
+{
+	SPEEDS *sp;
+
+	/* The baudrate number can be preceded by a 'B', which is ignored. */
+	if (*rate == 'B')
+		++rate;
+
+	for (sp = speeds; sp->string; ++sp)
+		if (!strcasecmp(rate, sp->string))
+			return (sp->speed);
+	err("unknown baud rate %s", rate);
+	/* NOTREACHED */
+}
diff --git a/usr.bin/tset/misc.c b/usr.bin/tset/misc.c
new file mode 100644
index 0000000..c96c48c
--- /dev/null
+++ b/usr.bin/tset/misc.c
@@ -0,0 +1,98 @@
+/*-
+ * Copyright (c) 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.
+ */
+
+#ifndef lint
+static char sccsid[] = "@(#)misc.c	8.1 (Berkeley) 6/9/93";
+#endif /* not lint */
+
+#include <fcntl.h>
+#include <errno.h>
+#include <unistd.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include "extern.h"
+
+void
+cat(file)
+	char *file;
+{
+	register int fd, nr, nw;
+	char buf[1024];
+
+	if ((fd = open(file, O_RDONLY, 0)) < 0)
+		err("%s: %s", file, strerror(errno));
+
+	while ((nr = read(fd, buf, sizeof(buf))) > 0)
+		if ((nw = write(STDERR_FILENO, buf, nr)) == -1)
+			err("write to stderr: %s", strerror(errno));
+	if (nr != 0)
+		err("%s: %s", file, strerror(errno));
+	(void)close(fd);
+}
+
+void
+outc(c)
+	int c;
+{
+	(void)putc(c, stderr);
+}
+
+#if __STDC__
+#include <stdarg.h>
+#else
+#include <varargs.h>
+#endif
+
+void
+#if __STDC__
+err(const char *fmt, ...)
+#else
+err(fmt, va_alist)
+	char *fmt;
+        va_dcl
+#endif
+{
+	va_list ap;
+#if __STDC__
+	va_start(ap, fmt);
+#else
+	va_start(ap);
+#endif
+	(void)fprintf(stderr, "tset: ");
+	(void)vfprintf(stderr, fmt, ap);
+	va_end(ap);
+	(void)fprintf(stderr, "\n");
+	exit(1);
+	/* NOTREACHED */
+}
diff --git a/usr.bin/tset/set.c b/usr.bin/tset/set.c
new file mode 100644
index 0000000..b279a1c
--- /dev/null
+++ b/usr.bin/tset/set.c
@@ -0,0 +1,322 @@
+/*-
+ * Copyright (c) 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.
+ */
+
+#ifndef lint
+static char sccsid[] = "@(#)set.c	8.2 (Berkeley) 2/28/94";
+#endif /* not lint */
+
+#include <termios.h>
+#include <unistd.h>
+#include <stdio.h>
+#include "extern.h"
+
+#define	CHK(val, dft)	(val <= 0 ? dft : val)
+
+int	set_tabs __P((void));
+
+/*
+ * Reset the terminal mode bits to a sensible state.  Very useful after
+ * a child program dies in raw mode.
+ */
+void
+reset_mode()
+{
+	tcgetattr(STDERR_FILENO, &mode);
+
+#if defined(VDISCARD) && defined(CDISCARD)
+	mode.c_cc[VDISCARD] = CHK(mode.c_cc[VDISCARD], CDISCARD);
+#endif
+	mode.c_cc[VEOF] = CHK(mode.c_cc[VEOF], CEOF);
+	mode.c_cc[VERASE] = CHK(mode.c_cc[VERASE], CERASE);
+#if defined(VFLUSH) && defined(CFLUSH)
+	mode.c_cc[VFLUSH] = CHK(mode.c_cc[VFLUSH], CFLUSH);
+#endif
+	mode.c_cc[VINTR] = CHK(mode.c_cc[VINTR], CINTR);
+	mode.c_cc[VKILL] = CHK(mode.c_cc[VKILL], CKILL);
+#if defined(VLNEXT) && defined(CLNEXT)
+	mode.c_cc[VLNEXT] = CHK(mode.c_cc[VLNEXT], CLNEXT);
+#endif
+	mode.c_cc[VQUIT] = CHK(mode.c_cc[VQUIT], CQUIT);
+#if defined(VREPRINT) && defined(CRPRNT)
+	mode.c_cc[VREPRINT] = CHK(mode.c_cc[VREPRINT], CRPRNT);
+#endif
+	mode.c_cc[VSTART] = CHK(mode.c_cc[VSTART], CSTART);
+	mode.c_cc[VSTOP] = CHK(mode.c_cc[VSTOP], CSTOP);
+	mode.c_cc[VSUSP] = CHK(mode.c_cc[VSUSP], CSUSP);
+#if defined(VWERASE) && defined(CWERASE)
+	mode.c_cc[VWERASE] = CHK(mode.c_cc[VWERASE], CWERASE);
+#endif
+
+	mode.c_iflag &= ~(IGNBRK | PARMRK | INPCK | ISTRIP | INLCR | IGNCR
+#ifdef IUCLC
+			  | IUCLC
+#endif
+#ifdef IXANY
+			  | IXANY
+#endif
+			  | IXOFF);
+
+	mode.c_iflag |= (BRKINT | IGNPAR | ICRNL | IXON
+#ifdef IMAXBEL
+			 | IMAXBEL
+#endif
+			 );
+
+	mode.c_oflag &= ~(0
+#ifdef OLCUC
+			  | OLCUC
+#endif
+#ifdef OCRNL
+			  | OCRNL
+#endif
+#ifdef ONOCR
+			  | ONOCR
+#endif
+#ifdef ONLRET
+			  | ONLRET
+#endif
+#ifdef OFILL
+			  | OFILL
+#endif
+#ifdef OFDEL
+			  | OFDEL
+#endif
+#ifdef NLDLY
+			  | NLDLY | CRDLY | TABDLY | BSDLY | VTDLY | FFDLY
+#endif
+			  );
+
+	mode.c_oflag |= (OPOST
+#ifdef ONLCR
+			 | ONLCR
+#endif
+			 );
+
+	mode.c_cflag &= ~(CSIZE | CSTOPB | PARENB | PARODD | CLOCAL);
+	mode.c_cflag |= (CS8 | CREAD);
+	mode.c_lflag &= ~(ECHONL | NOFLSH | TOSTOP
+#ifdef ECHOPTR
+			  | ECHOPRT
+#endif
+#ifdef XCASE
+			  | XCASE
+#endif
+			  );
+
+	mode.c_lflag |= (ISIG | ICANON | ECHO | ECHOE | ECHOK
+#ifdef ECHOCTL
+			 | ECHOCTL
+#endif
+#ifdef ECHOKE
+			 | ECHOKE
+#endif
+ 			 );
+
+	tcsetattr(STDERR_FILENO, TCSADRAIN, &mode);
+}
+
+/*
+ * Determine the erase, interrupt, and kill characters from the termcap
+ * entry and command line and update their values in 'mode'.
+ */
+void
+set_control_chars()
+{
+	char *bp, *p, bs_char, buf[1024];
+
+	bp = buf;
+	p = tgetstr("kb", &bp);
+	if (p == NULL || p[1] != '\0')
+		p = tgetstr("bc", &bp);
+	if (p != NULL && p[1] == '\0')
+		bs_char = p[0];
+	else if (tgetflag("bs"))
+		bs_char = CTRL('h');
+	else
+		bs_char = 0;
+
+	if (erasechar == 0 && !tgetflag("os") && mode.c_cc[VERASE] != CERASE) {
+		if (tgetflag("bs") || bs_char != 0)
+			erasechar = -1;
+	}
+	if (erasechar < 0)
+		erasechar = (bs_char != 0) ? bs_char : CTRL('h');
+
+	if (mode.c_cc[VERASE] == 0 || erasechar != 0)
+		mode.c_cc[VERASE] = erasechar ? erasechar : CERASE;
+
+	if (mode.c_cc[VINTR] == 0 || intrchar != 0)
+		 mode.c_cc[VINTR] = intrchar ? intrchar : CINTR;
+
+	if (mode.c_cc[VKILL] == 0 || killchar != 0)
+		mode.c_cc[VKILL] = killchar ? killchar : CKILL;
+}
+
+/*
+ * Set up various conversions in 'mode', including parity, tabs, returns,
+ * echo, and case, according to the termcap entry.  If the program we're
+ * running was named with a leading upper-case character, map external
+ * uppercase to internal lowercase.
+ */
+void
+set_conversions(usingupper)
+	int usingupper;
+{
+	if (tgetflag("UC") || usingupper) {
+#ifdef IUCLC
+		mode.c_iflag |= IUCLC;
+		mode.c_oflag |= OLCUC;
+#endif
+	} else if (tgetflag("LC")) {
+#ifdef IUCLC
+		mode.c_iflag &= ~IUCLC;
+		mode.c_oflag &= ~OLCUC;
+#endif
+	}
+	mode.c_iflag &= ~(PARMRK | INPCK);
+	mode.c_lflag |= ICANON;
+	if (tgetflag("EP")) {
+		mode.c_cflag |= PARENB;
+		mode.c_cflag &= ~PARODD;
+	}
+	if (tgetflag("OP")) {
+		mode.c_cflag |= PARENB;
+		mode.c_cflag |= PARODD;
+	}
+
+#ifdef ONLCR
+	mode.c_oflag |= ONLCR;
+#endif
+	mode.c_iflag |= ICRNL;
+	mode.c_lflag |= ECHO;
+	mode.c_oflag |= OXTABS;
+	if (tgetflag("NL")) {			/* Newline, not linefeed. */
+#ifdef ONLCR
+		mode.c_oflag &= ~ONLCR;
+#endif
+		mode.c_iflag &= ~ICRNL;
+	}
+	if (tgetflag("HD"))			/* Half duplex. */
+		mode.c_lflag &= ~ECHO;
+	if (tgetflag("pt"))			/* Print tabs. */
+		mode.c_oflag &= ~OXTABS;
+	mode.c_lflag |= (ECHOE | ECHOK);
+}
+
+/* Output startup string. */
+void
+set_init()
+{
+	char *bp, buf[1024];
+	int settle;
+
+	bp = buf;
+	if (tgetstr("pc", &bp) != 0)		/* Get/set pad character. */
+		PC = buf[0];
+
+#ifdef TAB3
+	if (oldmode.c_oflag & (TAB3 | ONLCR | OCRNL | ONLRET)) {
+		oldmode.c_oflag &= (TAB3 | ONLCR | OCRNL | ONLRET);
+		tcsetattr(STDERR_FILENO, TCSADRAIN, &oldmode);
+	}
+#endif
+	settle = set_tabs();
+
+	if (isreset) {
+		bp = buf;
+		if (tgetstr("rs", &bp) != 0 || tgetstr("is", &bp) != 0) {
+			tputs(buf, 0, outc);
+			settle = 1;
+		}
+		bp = buf;
+		if (tgetstr("rf", &bp) != 0 || tgetstr("if", &bp) != 0) {
+			cat(buf);
+			settle = 1;
+		}
+	}
+
+	if (settle) {
+		(void)putc('\r', stderr);
+		(void)fflush(stderr);
+		(void)sleep(1);			/* Settle the terminal. */
+	}
+}
+
+/*
+ * Set the hardware tabs on the terminal, using the ct (clear all tabs),
+ * st (set one tab) and ch (horizontal cursor addressing) capabilities.
+ * This is done before if and is, so they can patch in case we blow this.
+ * Return nonzero if we set any tab stops, zero if not.
+ */
+int
+set_tabs()
+{
+	int c;
+	char *capsp, *clear_tabs;
+	char *set_column, *set_pos, *set_tab, *tg_out;
+	char caps[1024];
+
+	capsp = caps;
+	set_tab = tgetstr("st", &capsp);
+
+	if (set_tab && (clear_tabs = tgetstr("ct", &capsp))) {
+		(void)putc('\r', stderr);	/* Force to left margin. */
+		tputs(clear_tabs, 0, outc);
+	}
+
+	set_column = tgetstr("ch", &capsp);
+	set_pos = set_column ? NULL : tgetstr("cm", &capsp);
+
+	if (set_tab) {
+		for (c = 8; c < columns; c += 8) {
+			/*
+			 * Get to the right column.  "OOPS" is returned by
+			 * tgoto() if it can't do the job.  (*snarl*)
+			 */
+			tg_out = "OOPS";
+			if (set_column)
+				tg_out = tgoto(set_column, 0, c);
+			if (*tg_out == 'O' && set_pos)
+				tg_out = tgoto(set_pos, c, lines - 1);
+			if (*tg_out != 'O')
+				tputs(tg_out, 1, outc);
+			else
+				(void)fprintf(stderr, "%s", "        ");
+			/* Set the tab. */
+			tputs(set_tab, 0, outc);
+		}
+		putc('\r', stderr);
+		return (1);
+	}
+	return (0);
+}
diff --git a/usr.bin/tset/term.c b/usr.bin/tset/term.c
new file mode 100644
index 0000000..dc652e3
--- /dev/null
+++ b/usr.bin/tset/term.c
@@ -0,0 +1,155 @@
+/*-
+ * Copyright (c) 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.
+ */
+
+#ifndef lint
+static char sccsid[] = "@(#)term.c	8.1 (Berkeley) 6/9/93";
+#endif /* not lint */
+
+#include <sys/types.h>
+#include <errno.h>
+#include <ttyent.h>
+#include <unistd.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include "extern.h"
+
+char    tbuf[1024];      		/* Termcap entry. */
+
+char	*askuser __P((char *));
+char	*ttys __P((char *));
+
+/*
+ * Figure out what kind of terminal we're dealing with, and then read in
+ * its termcap entry.
+ */
+char *
+get_termcap_entry(userarg, tcapbufp)
+	char *userarg, **tcapbufp;
+{
+	struct ttyent *t;
+	int rval;
+	char *p, *ttype, *ttypath;
+
+	if (userarg) {
+		ttype = userarg;
+		goto found;
+	}
+
+	/* Try the environment. */
+	if (ttype = getenv("TERM"))
+		goto map;
+
+	/* Try ttyname(3); check for dialup or other mapping. */
+	if (ttypath = ttyname(STDERR_FILENO)) {
+		if (p = rindex(ttypath, '/'))
+			++p;
+		else
+			p = ttypath;
+		if ((t = getttynam(p))) {
+			ttype = t->ty_type;
+			goto map;
+		}
+	}
+
+	/* If still undefined, use "unknown". */
+	ttype = "unknown";
+
+map:	ttype = mapped(ttype);
+
+	/*
+	 * If not a path, remove TERMCAP from the environment so we get a
+	 * real entry from /etc/termcap.  This prevents us from being fooled
+	 * by out of date stuff in the environment.
+	 */
+found:	if ((p = getenv("TERMCAP")) != NULL && *p != '/')
+		unsetenv("TERMCAP");
+
+	/*
+	 * ttype now contains a pointer to the type of the terminal.
+	 * If the first character is '?', ask the user.
+	 */
+	if (ttype[0] == '?')
+		if (ttype[1] != '\0')
+			ttype = askuser(ttype + 1);
+		else
+			ttype = askuser(NULL);
+
+	/* Find the termcap entry.  If it doesn't exist, ask the user. */
+	while ((rval = tgetent(tbuf, ttype)) == 0) {
+		(void)fprintf(stderr,
+		    "tset: terminal type %s is unknown\n", ttype);
+		ttype = askuser(NULL);
+	}
+	if (rval == -1)
+		err("termcap: %s", strerror(errno ? errno : ENOENT));
+	*tcapbufp = tbuf;
+	return (ttype);
+}
+
+/* Prompt the user for a terminal type. */
+char *
+askuser(dflt)
+	char *dflt;
+{
+	static char answer[256];
+	char *p;
+
+	/* We can get recalled; if so, don't continue uselessly. */
+	if (feof(stdin) || ferror(stdin)) {
+		(void)fprintf(stderr, "\n");
+		exit(1);
+	}
+	for (;;) {
+		if (dflt)
+			(void)fprintf(stderr, "Terminal type? [%s] ", dflt);
+		else
+			(void)fprintf(stderr, "Terminal type? ");
+		(void)fflush(stderr);
+
+		if (fgets(answer, sizeof(answer), stdin) == NULL) {
+			if (dflt == NULL) {
+				(void)fprintf(stderr, "\n");
+				exit(1);
+			}
+			return (dflt);
+		}
+
+		if (p = index(answer, '\n'))
+			*p = '\0';
+		if (answer[0])
+			return (answer);
+		if (dflt != NULL)
+			return (dflt);
+	}
+}
diff --git a/usr.bin/tset/tset.1 b/usr.bin/tset/tset.1
new file mode 100644
index 0000000..16b7344
--- /dev/null
+++ b/usr.bin/tset/tset.1
@@ -0,0 +1,405 @@
+.\" Copyright (c) 1985, 1990, 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.
+.\"
+.\"	@(#)tset.1	8.1 (Berkeley) 6/9/93
+.\"
+.Dd June 9, 1993
+.Dt TSET 1
+.Os BSD 4
+.Sh NAME
+.Nm tset
+.Nd terminal initialization
+.Sh SYNOPSIS
+.Nm tset
+.Op Fl IQrSs
+.Op Fl
+.Op Fl e Ar ch
+.Op Fl i Ar ch
+.Op Fl k Ar ch
+.Op Fl m Ar mapping
+.Op Ar terminal
+.br
+.Nm reset
+.Op Fl IQrSs
+.Op Fl
+.Op Fl e Ar ch
+.Op Fl i Ar ch
+.Op Fl k Ar ch
+.Op Fl m Ar mapping
+.Op Ar terminal
+.Sh DESCRIPTION
+.Nm Tset
+initializes terminals.
+.Nm Tset
+first determines the type of terminal that you are using.
+This determination is done as follows, using the first terminal type found.
+.sp
+.Bl -bullet -compact -offset indent
+.It
+The
+.Ar terminal
+argument specified on the command line.
+.It
+The value of the
+.Ev TERM
+environmental variable.
+.It
+The terminal type associated with the standard error output device in the
+.Pa /etc/ttys
+file.
+.It
+The default terminal type, ``unknown''.
+.El
+.Pp
+If the terminal type was not specified on the command-line, the
+.Fl m
+option mappings are then applied (see below for more information).
+Then, if the terminal type begins with a question mark (``?''), the user is
+prompted for confirmation of the terminal type.
+An empty response confirms the type, or, another type can be entered to
+specify a new type.
+Once the terminal type has been determined, the termcap entry for the terminal
+is retrieved.
+If no termcap entry is found for the type, the user is prompted for another
+terminal type.
+.Pp
+Once the termcap entry is retrieved, the window size, backspace, interrupt
+and line kill characters (among many other things) are set and the terminal
+and tab initialization strings are sent to the standard error output.
+Finally, if the erase, interrupt and line kill characters have changed,
+or are not set to their default values, their values are displayed to the
+standard error output.
+.Pp
+When invoked as
+.Nm reset ,
+.Nm tset
+sets cooked and echo modes, turns off cbreak and raw modes, turns on
+newline translation and resets any unset special characters to their
+default values before doing the terminal initialization described above.
+This is useful after a program dies leaving a terminal in a abnormal state.
+Note, you may have to type
+.Dq Li <LF>reset<LF>
+(the line-feed character is normally control-J) to get the terminal
+to work, as carriage-return may no longer work in the abnormal state.
+Also, the terminal will often not echo the command.
+.Pp
+The options are as follows:
+.Bl -tag -width flag
+.It Fl
+The terminal type is displayed to the standard output, and the terminal is
+not initialized in any way.
+.It Fl e
+Set the erase character to
+.Ar ch .
+.It Fl I
+Do not send the terminal or tab initialization strings to the terminal.
+.It Fl i
+Set the interrupt character to
+.Ar ch .
+.It Fl k
+Set the line kill character to
+.Ar ch .
+.It Fl m
+Specify a mapping from a port type to a terminal.
+See below for more information.
+.It Fl Q
+Don't display any values for the erase, interrupt and line kill characters.
+.It Fl r
+Print the terminal type to the standard error output.
+.It Fl S
+Print the terminal type and the termcap entry to the standard output.
+See the section below on setting the environment for details.
+.It Fl s
+Print the sequence of shell commands to initialize the environment variables
+.Ev TERM
+and
+.Ev TERMCAP
+to the standard output.
+See the section below on setting the environment for details.
+.El
+.Pp
+The arguments for the
+.Fl e ,
+.Fl i
+and
+.Fl k
+options may either be entered as actual characters or by using the
+.Dq hat
+notation, i.e. control-h may be specified as
+.Dq Li ^H
+or
+.Dq Li ^h .
+.Sh SETTING THE ENVIRONMENT
+It is often desirable to enter the terminal type and information about
+the terminal's capabilities into the shell's environment.
+This is done using the
+.Fl S
+and
+.Fl s
+options.
+.Pp
+When the
+.Fl S
+option is specified, the terminal type and the termcap entry are written
+to the standard output, separated by a space and without a terminating
+newline.
+This can be assigned to an array by
+.Nm csh
+and
+.Nm ksh
+users and then used like any other shell array.
+.Pp
+When the
+.Fl s
+option is specified, the commands to enter the information into the
+shell's environment are written to the standard output.
+If the
+.Ev SHELL
+environmental variable ends in ``csh'', the commands are for the
+.Nm csh ,
+otherwise, they are for
+.Xr sh .
+Note, the
+.Nm csh
+commands set and unset the shell variable
+.Dq noglob ,
+leaving it unset.
+The following line in the
+.Pa .login
+or
+.Pa .profile
+files will initialize the environment correctly:
+.Bd -literal -offset indent
+eval \`tset -s options ... \`
+.Ed
+.Pp
+To demonstrate a simple use of the
+.Fl S
+option, the following lines in the
+.Pa .login
+file have an equivalent effect:
+.Bd -literal -offset indent
+set noglob
+set term=(`tset -S options ...`)
+setenv TERM $term[1]
+setenv TERMCAP "$term[2]"
+unset term
+unset noglob
+.Ed
+.Sh TERMINAL TYPE MAPPING
+When the terminal is not hardwired into the system (or the current system
+information is incorrect) the terminal type derived from the
+.Pa /etc/ttys
+file or the
+.Ev TERM
+environmental variable is often something generic like
+.Dq network ,
+.Dq dialup ,
+or
+.Dq unknown .
+When
+.Nm tset
+is used in a startup script
+.Pf ( Pa .profile
+for
+.Xr sh 1
+users or
+.Pa .login
+for
+.Xr csh 1
+users) it is often desirable to provide information about the type of
+terminal used on such ports.
+The purpose of the
+.Fl m
+option is to
+.Dq map
+from some set of conditions to a terminal type, that is, to
+tell
+.Nm tset
+``If I'm on this port at a particular speed, guess that I'm on that
+kind of terminal''.
+.Pp
+The argument to the
+.Fl m
+option consists of an optional port type, an optional operator, an optional
+baud rate specification, an optional colon (``:'') character and a terminal
+type.
+The port type is a string (delimited by either the operator or the colon
+character).
+The operator may be any combination of:
+.Dq Li \&> ,
+.Dq Li \&< ,
+.Dq Li \&@ ,
+and
+.Dq Li \&! ;
+.Dq Li \&>
+means greater than,
+.Dq Li \&<
+means less than,
+.Dq Li \&@
+means equal to
+and
+.Dq Li \&!
+inverts the sense of the test.
+The baud rate is specified as a number and is compared with the speed
+of the standard error output (which should be the control terminal).
+The terminal type is a string.
+.Pp
+If the terminal type is not specified on the command line, the
+.Fl m
+mappings are applied to the terminal type.
+If the port type and baud rate match the mapping, the terminal type specified
+in the mapping replaces the current type.
+If more than one mapping is specified, the first applicable mapping is used.
+.Pp
+For example, consider the following mapping:
+.Dq Li dialup>9600:vt100 .
+The port type is
+.Dq Li dialup ,
+the operator is
+.Dq Li > ,
+the baud rate specification is
+.Dq Li 9600 ,
+and the terminal type is
+.Dq Li vt100 .
+The result of this mapping is to specify that if the terminal type is
+.Dq Li dialup ,
+and the baud rate is greater than 9600 baud, a terminal type of
+.Dq Li vt100
+will be used.
+.Pp
+If no port type is specified, the terminal type will match any port type,
+for example,
+.Dq Li -m dialup:vt100 -m :?xterm
+will cause any dialup port, regardless of baud rate, to match the terminal
+type
+.Dq Li vt100 ,
+and any non-dialup port type to match the terminal type
+.Dq Li ?xterm .
+Note, because of the leading question mark, the user will be
+queried on a default port as to whether they are actually using an
+.Ar xterm
+terminal.
+.Pp
+No whitespace characters are permitted in the
+.Fl m
+option argument.
+Also, to avoid problems with metacharacters, it is suggested that the entire
+.Fl m
+option argument be placed within single quote characters, and that
+.Nm csh
+users insert a backslash character (``\e'') before any exclamation
+marks (``!'').
+.Sh ENVIRONMENT
+The
+.Nm tset
+command utilizes the
+.Ev SHELL
+and
+.Ev TERM
+environment variables.
+.Sh FILES
+.Bl -tag -width /usr/share/misc/termcap -compact
+.It Pa /etc/ttys
+system port name to terminal type mapping database
+.It Pa /usr/share/misc/termcap
+terminal capability database
+.El
+.Sh SEE ALSO
+.Xr csh 1 ,
+.Xr sh 1 ,
+.Xr stty 1 ,
+.Xr tty 4 ,
+.Xr termcap 5 ,
+.Xr ttys 5 ,
+.Xr environ 7
+.Sh HISTORY
+The
+.Nm tset
+command appeared in
+.Bx 3.0 .
+.Sh COMPATIBILITY
+The
+.Fl A ,
+.Fl E ,
+.Fl h ,
+.Fl u
+and
+.Fl v
+options have been deleted from the
+.Nm tset
+utility.
+None of them were documented in 4.3BSD and all are of limited utility at
+best.
+The
+.Fl a ,
+.Fl d
+and
+.Fl p
+options are similarly not documented or useful, but were retained as they
+appear to be in widespread use.
+It is strongly recommended that any usage of these three options be
+changed to use the
+.Fl m
+option instead.
+The
+.Fl n
+option remains, but has no effect.
+It is still permissible to specify the
+.Fl e ,
+.Fl i
+and
+.Fl k
+options without arguments, although it is strongly recommended that such
+usage be fixed to explicitly specify the character.
+.Pp
+Executing
+.Nm tset
+as
+.Nm reset
+no longer implies the
+.Fl Q
+option.
+Also, the interaction between the
+.Fl
+option and the
+.Ar terminal
+argument in some historic implementations of
+.Nm tset
+has been removed.
+.Pp
+Finally, the
+.Nm tset
+implementation has been completely redone (as part of the addition to the
+system of a
+.St -p1003.1-88
+compliant terminal interface) and will no longer compile on systems with
+older terminal interfaces.
diff --git a/usr.bin/tset/tset.c b/usr.bin/tset/tset.c
new file mode 100644
index 0000000..7198e96
--- /dev/null
+++ b/usr.bin/tset/tset.c
@@ -0,0 +1,303 @@
+/*-
+ * Copyright (c) 1980, 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.
+ */
+
+#ifndef lint
+static char copyright[] =
+"@(#) Copyright (c) 1980, 1991, 1993\n\
+	The Regents of the University of California.  All rights reserved.\n";
+#endif /* not lint */
+
+#ifndef lint
+static char sccsid[] = "@(#)tset.c	8.1 (Berkeley) 6/9/93";
+#endif /* not lint */
+
+#include <sys/types.h>
+#include <sys/ioctl.h>
+#include <termios.h>
+#include <errno.h>
+#include <unistd.h>
+#include <stdlib.h>
+#include <stdio.h>
+#include <ctype.h>
+#include <string.h>
+#include "extern.h"
+
+void	obsolete __P((char *[]));
+void	report __P((char *, int, u_int));
+void	usage __P((void));
+
+struct termios mode, oldmode;
+
+int	erasechar;		/* new erase character */
+int	intrchar;		/* new interrupt character */
+int	isreset;		/* invoked as reset */
+int	killchar;		/* new kill character */
+int	lines, columns;		/* window size */
+
+int
+main(argc, argv)
+	int argc;
+	char *argv[];
+{
+#ifdef TIOCGWINSZ
+	struct winsize win;
+#endif
+	int ch, noinit, noset, quiet, Sflag, sflag, showterm, usingupper;
+	char savech, *p, *t, *tcapbuf, *ttype;
+
+	if (tcgetattr(STDERR_FILENO, &mode) < 0)
+		err("standard error: %s", strerror(errno));
+
+	oldmode = mode;
+	ospeed = cfgetospeed(&mode);
+
+	if (p = strrchr(*argv, '/'))
+		++p;
+	else
+		p = *argv;
+	usingupper = isupper(*p);
+	if (!strcasecmp(p, "reset")) {
+		isreset = 1;
+		reset_mode();
+	}
+
+	obsolete(argv);
+	noinit = noset = quiet = Sflag = sflag = showterm = 0;
+	while ((ch = getopt(argc, argv, "-a:d:e:Ii:k:m:np:QSrs")) != EOF) {
+		switch (ch) {
+		case '-':		/* display term only */
+			noset = 1;
+			break;
+		case 'a':		/* OBSOLETE: map identifier to type */
+			add_mapping("arpanet", optarg);
+			break;
+		case 'd':		/* OBSOLETE: map identifier to type */
+			add_mapping("dialup", optarg);
+			break;
+		case 'e':		/* erase character */
+			erasechar = optarg[0] == '^' && optarg[1] != '\0' ?
+			    optarg[1] == '?' ? '\177' : CTRL(optarg[1]) :
+			    optarg[0];
+			break;
+		case 'I':		/* no initialization strings */
+			noinit = 1;
+			break;
+		case 'i':		/* interrupt character */
+			intrchar = optarg[0] == '^' && optarg[1] != '\0' ?
+			    optarg[1] == '?' ? '\177' : CTRL(optarg[1]) :
+			    optarg[0];
+			break;
+		case 'k':		/* kill character */
+			killchar = optarg[0] == '^' && optarg[1] != '\0' ?
+			    optarg[1] == '?' ? '\177' : CTRL(optarg[1]) :
+			    optarg[0];
+			break;
+		case 'm':		/* map identifier to type */
+			add_mapping(NULL, optarg);
+			break;
+		case 'n':		/* OBSOLETE: set new tty driver */
+			break;
+		case 'p':		/* OBSOLETE: map identifier to type */
+			add_mapping("plugboard", optarg);
+			break;
+		case 'Q':		/* don't output control key settings */
+			quiet = 1;
+			break;
+		case 'S':		/* output TERM/TERMCAP strings */
+			Sflag = 1;
+			break;
+		case 'r':		/* display term on stderr */
+			showterm = 1;
+			break;
+		case 's':		/* output TERM/TERMCAP strings */
+			sflag = 1;
+			break;
+		case '?':
+		default:
+			usage();
+		}
+	}
+	argc -= optind;
+	argv += optind;
+
+	if (argc > 1)
+		usage();
+
+	ttype = get_termcap_entry(*argv, &tcapbuf);
+
+	if (!noset) {
+		columns = tgetnum("co");
+		lines = tgetnum("li");
+
+#ifdef TIOCGWINSZ
+		/* Set window size */
+		(void)ioctl(STDERR_FILENO, TIOCGWINSZ, &win);
+		if (win.ws_row == 0 && win.ws_col == 0 &&
+		    lines > 0 && columns > 0) {
+			win.ws_row = lines;
+			win.ws_col = columns;
+			(void)ioctl(STDERR_FILENO, TIOCSWINSZ, &win);
+		}
+#endif
+		set_control_chars();
+		set_conversions(usingupper);
+
+		if (!noinit)
+			set_init();
+
+		/* Set the modes if they've changed. */
+		if (memcmp(&mode, &oldmode, sizeof(mode)))
+			tcsetattr(STDERR_FILENO, TCSADRAIN, &mode);
+	}
+
+	/* Get the terminal name from the entry. */
+	p = tcapbuf;
+	if (p != NULL && *p != ':') {
+		t = p;
+		if (p = strpbrk(p, "|:")) {
+			savech = *p;
+			*p = '\0';
+			if ((ttype = strdup(t)) == NULL)
+				err("%s", strerror(errno));
+			*p = savech;
+		}
+	}
+
+	if (noset)
+		(void)printf("%s\n", ttype);
+	else {
+		if (showterm)
+			(void)fprintf(stderr, "Terminal type is %s.\n", ttype);
+		/*
+		 * If erase, kill and interrupt characters could have been
+		 * modified and not -Q, display the changes.
+		 */
+		if (!quiet) {
+			report("Erase", VERASE, CERASE);
+			report("Kill", VKILL, CKILL);
+			report("Interrupt", VINTR, CINTR);
+		}
+	}
+
+	if (Sflag) {
+		(void)printf("%s ", ttype);
+		wrtermcap(tcapbuf);
+	}
+
+	if (sflag) {
+		/*
+		 * Figure out what shell we're using.  A hack, we look for an
+		 * environmental variable SHELL ending in "csh".
+		 */
+		if ((p = getenv("SHELL")) &&
+		    !strcmp(p + strlen(p) - 3, "csh")) {
+			p = "set noglob;\nsetenv TERM %s;\nsetenv TERMCAP '";
+			t = "';\nunset noglob;\n";
+		} else {
+			p = "TERM=%s;\nTERMCAP='";
+			t = "';\nexport TERMCAP TERM;\n";
+		}
+		(void)printf(p, ttype);
+		wrtermcap(tcapbuf);
+		(void)printf(t);
+	}
+
+	exit(0);
+}
+
+/*
+ * Tell the user if a control key has been changed from the default value.
+ */
+void
+report(name, which, def)
+	char *name;
+	int which;
+	u_int def;
+{
+	u_int old, new;
+	char *bp, buf[1024];
+
+	new = mode.c_cc[which];
+	old = oldmode.c_cc[which];
+
+	if (old == new && old == def)
+		return;
+
+	(void)fprintf(stderr, "%s %s ", name, old == new ? "is" : "set to");
+
+	bp = buf;
+	if (tgetstr("kb", &bp) && new == buf[0] && buf[1] == '\0')
+		(void)fprintf(stderr, "backspace.\n");
+	else if (new == 0177)
+		(void)fprintf(stderr, "delete.\n");
+	else if (new < 040) {
+		new ^= 0100;
+		(void)fprintf(stderr, "control-%c (^%c).\n", new, new);
+	} else
+		(void)fprintf(stderr, "%c.\n", new);
+}
+
+/*
+ * Convert the obsolete argument form into something that getopt can handle.
+ * This means that -e, -i and -k get default arguments supplied for them.
+ */
+void
+obsolete(argv)
+	char *argv[];
+{
+	for (; *argv; ++argv) {
+		if (argv[0][0] != '-' || argv[1] && argv[1][0] != '-' ||
+		    argv[0][1] != 'e' && argv[0][1] != 'i' &&
+		    argv[0][1] != 'k' || argv[0][2] != '\0')
+			continue;
+		switch(argv[0][1]) {
+		case 'e':
+			argv[0] = "-e^H";
+			break;
+		case 'i':
+			argv[0] = "-i^C";
+			break;
+		case 'k':
+			argv[0] = "-k^U";
+			break;
+		}
+	}
+}
+
+void
+usage()
+{
+	(void)fprintf(stderr,
+"usage: tset [-IQrSs] [-] [-e ch] [-i ch] [-k ch] [-m mapping] [terminal]\n");
+	exit(1);
+}
diff --git a/usr.bin/tset/wrterm.c b/usr.bin/tset/wrterm.c
new file mode 100644
index 0000000..5c33b49
--- /dev/null
+++ b/usr.bin/tset/wrterm.c
@@ -0,0 +1,112 @@
+/*-
+ * Copyright (c) 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.
+ */
+
+#ifndef lint
+static char sccsid[] = "@(#)wrterm.c	8.1 (Berkeley) 6/9/93";
+#endif /* not lint */
+
+#include <sys/types.h>
+#include <stdio.h>
+#include <ctype.h>
+#include <string.h>
+#include "extern.h"
+
+/*
+ * Output termcap entry to stdout, quoting characters that would give the
+ * shell problems and omitting empty fields.
+ */
+void
+wrtermcap(bp)
+	char *bp;
+{
+	register int ch;
+	register char *p;
+	char *t, *sep;
+
+	/* Find the end of the terminal names. */
+	if ((t = index(bp, ':')) == NULL)
+		err("termcap names not colon terminated");
+	*t++ = '\0';
+
+	/* Output terminal names that don't have whitespace. */
+	sep = "";
+	while ((p = strsep(&bp, "|")) != NULL)
+		if (*p != '\0' && strpbrk(p, " \t") == NULL) {
+			(void)printf("%s%s", sep, p);
+			sep = "|";
+		}
+	(void)putchar(':');
+
+	/*
+	 * Output fields, transforming any dangerous characters.  Skip
+	 * empty fields or fields containing only whitespace.
+	 */
+	while ((p = strsep(&t, ":")) != NULL) {
+		while ((ch = *p) != '\0' && isspace(ch))
+			++p;
+		if (ch == '\0')
+			continue;
+		while ((ch = *p++) != '\0')
+			switch(ch) {
+			case '\033':
+				(void)printf("\\E");
+			case  ' ':		/* No spaces. */
+				(void)printf("\\040");
+				break;
+			case '!':		/* No csh history chars. */
+				(void)printf("\\041");
+				break;
+			case ',':		/* No csh history chars. */
+				(void)printf("\\054");
+				break;
+			case '"':		/* No quotes. */
+				(void)printf("\\042");
+				break;
+			case '\'':		/* No quotes. */
+				(void)printf("\\047");
+				break;
+			case '`':		/* No quotes. */
+				(void)printf("\\140");
+				break;
+			case '\\':		/* Anything following is OK. */
+			case '^':
+				(void)putchar(ch);
+				if ((ch = *p++) == '\0')
+					break;
+				/* FALLTHROUGH */
+			default:
+				(void)putchar(ch);
+		}
+		(void)putchar(':');
+	}
+}