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-rw-r--r--usr.bin/tset/tset.c297
1 files changed, 297 insertions, 0 deletions
diff --git a/usr.bin/tset/tset.c b/usr.bin/tset/tset.c
new file mode 100644
index 0000000..0196a2d
--- /dev/null
+++ b/usr.bin/tset/tset.c
@@ -0,0 +1,297 @@
+/*-
+ * 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.
+ * 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.
+ */
+
+#include <sys/cdefs.h>
+
+__FBSDID("$FreeBSD$");
+
+#ifndef lint
+static const char copyright[] =
+"@(#) Copyright (c) 1980, 1991, 1993\n\
+ The Regents of the University of California. All rights reserved.\n";
+#endif
+
+#ifndef lint
+static const char sccsid[] = "@(#)tset.c 8.1 (Berkeley) 6/9/93";
+#endif
+
+#include <sys/types.h>
+#include <sys/ioctl.h>
+
+#include <ctype.h>
+#include <err.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <termcap.h>
+#include <termios.h>
+#include <unistd.h>
+
+#include "extern.h"
+
+void obsolete(char *[]);
+void report(const char *, int, u_int);
+void usage(void);
+
+struct termios mode, oldmode;
+
+int erasech; /* new erase character */
+int intrchar; /* new interrupt character */
+int isreset; /* invoked as reset */
+int killch; /* new kill character */
+int Lines, Columns; /* window size */
+speed_t Ospeed;
+
+int
+main(int argc, char *argv[])
+{
+#ifdef TIOCGWINSZ
+ struct winsize win;
+#endif
+ int ch, noinit, noset, quiet, Sflag, sflag, showterm, usingupper;
+ char *p, *tcapbuf;
+ const char *ttype;
+
+ if (tcgetattr(STDERR_FILENO, &mode) < 0)
+ err(1, "standard error");
+
+ 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")) != -1) {
+ 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 */
+ erasech = 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 */
+ killch = 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);
+ }
+
+ 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);
+ if (strlen(tcapbuf) > 0)
+ 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")) {
+ printf("set noglob;\nsetenv TERM %s;\n", ttype);
+ if (strlen(tcapbuf) > 0) {
+ printf("setenv TERMCAP '");
+ wrtermcap(tcapbuf);
+ printf("';\n");
+ }
+ printf("unset noglob;\n");
+ } else {
+ printf("TERM=%s;\n", ttype);
+ if (strlen(tcapbuf) > 0) {
+ printf("TERMCAP='");
+ wrtermcap(tcapbuf);
+ printf("';\nexport TERMCAP;\n");
+ }
+ printf("export TERM;\n");
+ }
+ }
+
+ exit(0);
+}
+
+/*
+ * Tell the user if a control key has been changed from the default value.
+ */
+void
+report(const char *name, int which, u_int def)
+{
+ u_int old, new;
+
+ 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");
+
+ if (new == 010)
+ (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(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] = strdup("-e^H");
+ break;
+ case 'i':
+ argv[0] = strdup("-i^C");
+ break;
+ case 'k':
+ argv[0] = strdup("-k^U");
+ break;
+ }
+ }
+}
+
+void
+usage(void)
+{
+ (void)fprintf(stderr, "%s\n%s\n",
+"usage: tset [-IQrSs] [-] [-e ch] [-i ch] [-k ch] [-m mapping] [terminal]",
+" reset [-IQrSs] [-] [-e ch] [-i ch] [-k ch] [-m mapping] [terminal]");
+ exit(1);
+}
+
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