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. All advertising materials mentioning features or use of this software
14 * must display the following acknowledgement:
15 * This product includes software developed by the University of
16 * California, Berkeley and its contributors.
17 * 4. Neither the name of the University nor the names of its contributors
18 * may be used to endorse or promote products derived from this software
19 * without specific prior written permission.
21 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
24 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
33 * @(#) Copyright (c) 1980, 1991, 1993 The Regents of the University of California. All rights reserved.
34 * @(#)tset.c 8.1 (Berkeley) 6/9/93
35 * $FreeBSD: src/usr.bin/tset/tset.c,v 1.14.2.1 2000/11/12 07:48:29 dg Exp $
36 * $DragonFly: src/usr.bin/tset/tset.c,v 1.3 2003/10/04 20:36:53 hmp Exp $
39 #include <sys/types.h>
40 #include <sys/ioctl.h>
50 void obsolete(char *[]);
51 void report(const char *, int, u_int);
54 struct termios mode, oldmode;
56 int erasech; /* new erase character */
57 int intrchar; /* new interrupt character */
58 int isreset; /* invoked as reset */
59 int killch; /* new kill character */
60 int Lines, Columns; /* window size */
64 main(int argc, char **argv)
69 int ch, noinit, noset, quiet, Sflag, sflag, showterm, usingupper;
73 if (tcgetattr(STDERR_FILENO, &mode) < 0)
74 err(1, "standard error");
77 Ospeed = cfgetospeed(&mode);
79 if ((p = strrchr(*argv, '/')))
83 usingupper = isupper(*p);
84 if (!strcasecmp(p, "reset")) {
90 noinit = noset = quiet = Sflag = sflag = showterm = 0;
91 while ((ch = getopt(argc, argv, "-a:d:e:Ii:k:m:np:QSrs")) != -1) {
93 case '-': /* display term only */
96 case 'a': /* OBSOLETE: map identifier to type */
97 add_mapping("arpanet", optarg);
99 case 'd': /* OBSOLETE: map identifier to type */
100 add_mapping("dialup", optarg);
102 case 'e': /* erase character */
103 erasech = optarg[0] == '^' && optarg[1] != '\0' ?
104 optarg[1] == '?' ? '\177' : CTRL(optarg[1]) :
107 case 'I': /* no initialization strings */
110 case 'i': /* interrupt character */
111 intrchar = optarg[0] == '^' && optarg[1] != '\0' ?
112 optarg[1] == '?' ? '\177' : CTRL(optarg[1]) :
115 case 'k': /* kill character */
116 killch = optarg[0] == '^' && optarg[1] != '\0' ?
117 optarg[1] == '?' ? '\177' : CTRL(optarg[1]) :
120 case 'm': /* map identifier to type */
121 add_mapping(NULL, optarg);
123 case 'n': /* OBSOLETE: set new tty driver */
125 case 'p': /* OBSOLETE: map identifier to type */
126 add_mapping("plugboard", optarg);
128 case 'Q': /* don't output control key settings */
131 case 'S': /* output TERM/TERMCAP strings */
134 case 'r': /* display term on stderr */
137 case 's': /* output TERM/TERMCAP strings */
151 ttype = get_termcap_entry(*argv, &tcapbuf);
154 Columns = tgetnum("co");
155 Lines = tgetnum("li");
158 /* Set window size */
159 (void)ioctl(STDERR_FILENO, TIOCGWINSZ, &win);
160 if (win.ws_row == 0 && win.ws_col == 0 &&
161 Lines > 0 && Columns > 0) {
163 win.ws_col = Columns;
164 (void)ioctl(STDERR_FILENO, TIOCSWINSZ, &win);
168 set_conversions(usingupper);
173 /* Set the modes if they've changed. */
174 if (memcmp(&mode, &oldmode, sizeof(mode)))
175 tcsetattr(STDERR_FILENO, TCSADRAIN, &mode);
179 (void)printf("%s\n", ttype);
182 (void)fprintf(stderr, "Terminal type is %s.\n", ttype);
184 * If erase, kill and interrupt characters could have been
185 * modified and not -Q, display the changes.
188 report("Erase", VERASE, CERASE);
189 report("Kill", VKILL, CKILL);
190 report("Interrupt", VINTR, CINTR);
195 (void)printf("%s ", ttype);
196 if (strlen(tcapbuf) > 0)
202 * Figure out what shell we're using. A hack, we look for an
203 * environmental variable SHELL ending in "csh".
205 if ((p = getenv("SHELL")) &&
206 !strcmp(p + strlen(p) - 3, "csh")) {
207 printf("set noglob;\nsetenv TERM %s;\n", ttype);
208 if (strlen(tcapbuf) > 0) {
209 printf("setenv TERMCAP '");
213 printf("unset noglob;\n");
215 printf("TERM=%s;\n", ttype);
216 if (strlen(tcapbuf) > 0) {
219 printf("';\nexport TERMCAP;\n");
221 printf("export TERM;\n");
229 * Tell the user if a control key has been changed from the default value.
232 report(const char *name, int which, u_int def)
236 new = mode.c_cc[which];
237 old = oldmode.c_cc[which];
239 if (old == new && old == def)
242 (void)fprintf(stderr, "%s %s ", name, old == new ? "is" : "set to");
245 (void)fprintf(stderr, "backspace.\n");
246 else if (new == 0177)
247 (void)fprintf(stderr, "delete.\n");
248 else if (new < 040) {
250 (void)fprintf(stderr, "control-%c (^%c).\n", new, new);
252 (void)fprintf(stderr, "%c.\n", new);
256 * Convert the obsolete argument form into something that getopt can handle.
257 * This means that -e, -i and -k get default arguments supplied for them.
260 obsolete(char **argv)
262 for (; *argv; ++argv) {
263 if (argv[0][0] != '-' || (argv[1] && argv[1][0] != '-') ||
264 (argv[0][1] != 'e' && argv[0][1] != 'i' && argv[0][1] != 'k') ||
269 argv[0] = strdup("-e^H");
272 argv[0] = strdup("-i^C");
275 argv[0] = strdup("-k^U");
284 (void)fprintf(stderr, "%s\n%s\n",
285 "usage: tset [-IQrSs] [-] [-e ch] [-i ch] [-k ch] [-m mapping] [terminal]",
286 " reset [-IQrSs] [-] [-e ch] [-i ch] [-k ch] [-m mapping] [terminal]");