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
34 #include <sys/cdefs.h>
36 __FBSDID("$FreeBSD$");
39 static const char copyright[] =
40 "@(#) Copyright (c) 1980, 1991, 1993\n\
41 The Regents of the University of California. All rights reserved.\n";
45 static const char sccsid[] = "@(#)tset.c 8.1 (Berkeley) 6/9/93";
48 #include <sys/types.h>
49 #include <sys/ioctl.h>
61 void obsolete(char *[]);
62 void report(const char *, int, u_int);
65 struct termios mode, oldmode;
67 int erasech; /* new erase character */
68 int intrchar; /* new interrupt character */
69 int isreset; /* invoked as reset */
70 int killch; /* new kill character */
71 int Lines, Columns; /* window size */
82 int ch, noinit, noset, quiet, Sflag, sflag, showterm, usingupper;
86 if (tcgetattr(STDERR_FILENO, &mode) < 0)
87 err(1, "standard error");
90 Ospeed = cfgetospeed(&mode);
92 if ((p = strrchr(*argv, '/')))
96 usingupper = isupper(*p);
97 if (!strcasecmp(p, "reset")) {
103 noinit = noset = quiet = Sflag = sflag = showterm = 0;
104 while ((ch = getopt(argc, argv, "-a:d:e:Ii:k:m:np:QSrs")) != -1) {
106 case '-': /* display term only */
109 case 'a': /* OBSOLETE: map identifier to type */
110 add_mapping("arpanet", optarg);
112 case 'd': /* OBSOLETE: map identifier to type */
113 add_mapping("dialup", optarg);
115 case 'e': /* erase character */
116 erasech = optarg[0] == '^' && optarg[1] != '\0' ?
117 optarg[1] == '?' ? '\177' : CTRL(optarg[1]) :
120 case 'I': /* no initialization strings */
123 case 'i': /* interrupt character */
124 intrchar = optarg[0] == '^' && optarg[1] != '\0' ?
125 optarg[1] == '?' ? '\177' : CTRL(optarg[1]) :
128 case 'k': /* kill character */
129 killch = optarg[0] == '^' && optarg[1] != '\0' ?
130 optarg[1] == '?' ? '\177' : CTRL(optarg[1]) :
133 case 'm': /* map identifier to type */
134 add_mapping(NULL, optarg);
136 case 'n': /* OBSOLETE: set new tty driver */
138 case 'p': /* OBSOLETE: map identifier to type */
139 add_mapping("plugboard", optarg);
141 case 'Q': /* don't output control key settings */
144 case 'S': /* output TERM/TERMCAP strings */
147 case 'r': /* display term on stderr */
150 case 's': /* output TERM/TERMCAP strings */
164 ttype = get_termcap_entry(*argv, &tcapbuf);
167 Columns = tgetnum("co");
168 Lines = tgetnum("li");
171 /* Set window size */
172 (void)ioctl(STDERR_FILENO, TIOCGWINSZ, &win);
173 if (win.ws_row == 0 && win.ws_col == 0 &&
174 Lines > 0 && Columns > 0) {
176 win.ws_col = Columns;
177 (void)ioctl(STDERR_FILENO, TIOCSWINSZ, &win);
181 set_conversions(usingupper);
186 /* Set the modes if they've changed. */
187 if (memcmp(&mode, &oldmode, sizeof(mode)))
188 tcsetattr(STDERR_FILENO, TCSADRAIN, &mode);
192 (void)printf("%s\n", ttype);
195 (void)fprintf(stderr, "Terminal type is %s.\n", ttype);
197 * If erase, kill and interrupt characters could have been
198 * modified and not -Q, display the changes.
201 report("Erase", VERASE, CERASE);
202 report("Kill", VKILL, CKILL);
203 report("Interrupt", VINTR, CINTR);
208 (void)printf("%s ", ttype);
209 if (strlen(tcapbuf) > 0)
215 * Figure out what shell we're using. A hack, we look for an
216 * environmental variable SHELL ending in "csh".
218 if ((p = getenv("SHELL")) &&
219 !strcmp(p + strlen(p) - 3, "csh")) {
220 printf("set noglob;\nsetenv TERM %s;\n", ttype);
221 if (strlen(tcapbuf) > 0) {
222 printf("setenv TERMCAP '");
226 printf("unset noglob;\n");
228 printf("TERM=%s;\n", ttype);
229 if (strlen(tcapbuf) > 0) {
232 printf("';\nexport TERMCAP;\n");
234 printf("export TERM;\n");
242 * Tell the user if a control key has been changed from the default value.
245 report(name, which, def)
252 new = mode.c_cc[which];
253 old = oldmode.c_cc[which];
255 if (old == new && old == def)
258 (void)fprintf(stderr, "%s %s ", name, old == new ? "is" : "set to");
261 (void)fprintf(stderr, "backspace.\n");
262 else if (new == 0177)
263 (void)fprintf(stderr, "delete.\n");
264 else if (new < 040) {
266 (void)fprintf(stderr, "control-%c (^%c).\n", new, new);
268 (void)fprintf(stderr, "%c.\n", new);
272 * Convert the obsolete argument form into something that getopt can handle.
273 * This means that -e, -i and -k get default arguments supplied for them.
279 for (; *argv; ++argv) {
280 if (argv[0][0] != '-' || (argv[1] && argv[1][0] != '-') ||
281 (argv[0][1] != 'e' && argv[0][1] != 'i' && argv[0][1] != 'k') ||
286 argv[0] = strdup("-e^H");
289 argv[0] = strdup("-i^C");
292 argv[0] = strdup("-k^U");
301 (void)fprintf(stderr, "%s\n%s\n",
302 "usage: tset [-IQrSs] [-] [-e ch] [-i ch] [-k ch] [-m mapping] [terminal]",
303 " reset [-IQrSs] [-] [-e ch] [-i ch] [-k ch] [-m mapping] [terminal]");