BSD 4.4 Lite Usr.bin Sources

1 files changed, 303 insertions, 0 deletions

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);
+}