2 * Copyright (c) 1980, 1991, 1993
3 * The Regents of the University of California. All rights reserved.
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 * 3. Neither the name of the University nor the names of its contributors
14 * may be used to endorse or promote products derived from this software
15 * without specific prior written permission.
17 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
29 * @(#) Copyright (c) 1980, 1991, 1993 The Regents of the University of California. All rights reserved.
30 * @(#)tset.c 8.1 (Berkeley) 6/9/93
31 * $FreeBSD: src/usr.bin/tset/tset.c,v 1.14.2.1 2000/11/12 07:48:29 dg Exp $
34 #include <sys/types.h>
35 #include <sys/ioctl.h>
45 void obsolete(char *[]);
46 void report(const char *, int, u_int);
47 void usage(void) __dead2;
49 struct termios mode, oldmode;
51 int erasech; /* new erase character */
52 int intrchar; /* new interrupt character */
53 int isreset; /* invoked as reset */
54 int killch; /* new kill character */
55 int Lines, Columns; /* window size */
59 main(int argc, char **argv)
64 int ch, noinit, noset, quiet, Sflag, sflag, showterm, usingupper;
68 if (tcgetattr(STDERR_FILENO, &mode) < 0)
69 err(1, "standard error");
72 Ospeed = cfgetospeed(&mode);
74 if ((p = strrchr(*argv, '/')))
78 usingupper = isupper(*p);
79 if (!strcasecmp(p, "reset")) {
85 noinit = noset = quiet = Sflag = sflag = showterm = 0;
86 while ((ch = getopt(argc, argv, "-a:d:e:Ii:k:m:np:QSrs")) != -1) {
88 case '-': /* display term only */
91 case 'a': /* OBSOLETE: map identifier to type */
92 add_mapping("arpanet", optarg);
94 case 'd': /* OBSOLETE: map identifier to type */
95 add_mapping("dialup", optarg);
97 case 'e': /* erase character */
98 erasech = optarg[0] == '^' && optarg[1] != '\0' ?
99 optarg[1] == '?' ? '\177' : CTRL(optarg[1]) :
102 case 'I': /* no initialization strings */
105 case 'i': /* interrupt character */
106 intrchar = optarg[0] == '^' && optarg[1] != '\0' ?
107 optarg[1] == '?' ? '\177' : CTRL(optarg[1]) :
110 case 'k': /* kill character */
111 killch = optarg[0] == '^' && optarg[1] != '\0' ?
112 optarg[1] == '?' ? '\177' : CTRL(optarg[1]) :
115 case 'm': /* map identifier to type */
116 add_mapping(NULL, optarg);
118 case 'n': /* OBSOLETE: set new tty driver */
120 case 'p': /* OBSOLETE: map identifier to type */
121 add_mapping("plugboard", optarg);
123 case 'Q': /* don't output control key settings */
126 case 'S': /* output TERM/TERMCAP strings */
129 case 'r': /* display term on stderr */
132 case 's': /* output TERM/TERMCAP strings */
146 ttype = get_termcap_entry(*argv, &tcapbuf);
149 Columns = tgetnum("co");
150 Lines = tgetnum("li");
153 /* Set window size */
154 (void)ioctl(STDERR_FILENO, TIOCGWINSZ, &win);
155 if (win.ws_row == 0 && win.ws_col == 0 &&
156 Lines > 0 && Columns > 0) {
158 win.ws_col = Columns;
159 (void)ioctl(STDERR_FILENO, TIOCSWINSZ, &win);
163 set_conversions(usingupper);
168 /* Set the modes if they've changed. */
169 if (memcmp(&mode, &oldmode, sizeof(mode)))
170 tcsetattr(STDERR_FILENO, TCSADRAIN, &mode);
174 (void)printf("%s\n", ttype);
177 (void)fprintf(stderr, "Terminal type is %s.\n", ttype);
179 * If erase, kill and interrupt characters could have been
180 * modified and not -Q, display the changes.
183 report("Erase", VERASE, CERASE);
184 report("Kill", VKILL, CKILL);
185 report("Interrupt", VINTR, CINTR);
190 (void)printf("%s ", ttype);
191 if (strlen(tcapbuf) > 0)
197 * Figure out what shell we're using. A hack, we look for an
198 * environmental variable SHELL ending in "csh".
200 if ((p = getenv("SHELL")) &&
201 !strcmp(p + strlen(p) - 3, "csh")) {
202 printf("set noglob;\nsetenv TERM %s;\n", ttype);
203 if (strlen(tcapbuf) > 0) {
204 printf("setenv TERMCAP '");
208 printf("unset noglob;\n");
210 printf("TERM=%s;\n", ttype);
211 if (strlen(tcapbuf) > 0) {
214 printf("';\nexport TERMCAP;\n");
216 printf("export TERM;\n");
224 * Tell the user if a control key has been changed from the default value.
227 report(const char *name, int which, u_int def)
231 new = mode.c_cc[which];
232 old = oldmode.c_cc[which];
234 if (old == new && old == def)
237 (void)fprintf(stderr, "%s %s ", name, old == new ? "is" : "set to");
240 (void)fprintf(stderr, "backspace.\n");
241 else if (new == 0177)
242 (void)fprintf(stderr, "delete.\n");
243 else if (new < 040) {
245 (void)fprintf(stderr, "control-%c (^%c).\n", new, new);
247 (void)fprintf(stderr, "%c.\n", new);
251 * Convert the obsolete argument form into something that getopt can handle.
252 * This means that -e, -i and -k get default arguments supplied for them.
255 obsolete(char **argv)
257 for (; *argv; ++argv) {
258 if (argv[0][0] != '-' || (argv[1] && argv[1][0] != '-') ||
259 (argv[0][1] != 'e' && argv[0][1] != 'i' && argv[0][1] != 'k') ||
264 argv[0] = strdup("-e^H");
267 argv[0] = strdup("-i^C");
270 argv[0] = strdup("-k^U");
279 (void)fprintf(stderr, "%s\n%s\n",
280 "usage: tset [-IQrSs] [-] [-e ch] [-i ch] [-k ch] [-m mapping] [terminal]",
281 " reset [-IQrSs] [-] [-e ch] [-i ch] [-k ch] [-m mapping] [terminal]");