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 * 4. 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
30 #include <sys/cdefs.h>
32 __FBSDID("$FreeBSD$");
35 static const char copyright[] =
36 "@(#) Copyright (c) 1980, 1991, 1993\n\
37 The Regents of the University of California. All rights reserved.\n";
41 static const char sccsid[] = "@(#)tset.c 8.1 (Berkeley) 6/9/93";
44 #include <sys/types.h>
45 #include <sys/ioctl.h>
58 void obsolete(char *[]);
59 void report(const char *, int, u_int);
62 struct termios mode, oldmode;
64 int erasech; /* new erase character */
65 int intrchar; /* new interrupt character */
66 int isreset; /* invoked as reset */
67 int killch; /* new kill character */
68 int Lines, Columns; /* window size */
72 main(int argc, char *argv[])
77 int ch, noinit, noset, quiet, Sflag, sflag, showterm, usingupper;
81 if (tcgetattr(STDERR_FILENO, &mode) < 0)
82 err(1, "standard error");
85 Ospeed = cfgetospeed(&mode);
87 if ((p = strrchr(*argv, '/')))
91 usingupper = isupper(*p);
92 if (!strcasecmp(p, "reset")) {
98 noinit = noset = quiet = Sflag = sflag = showterm = 0;
99 while ((ch = getopt(argc, argv, "-a:d:e:Ii:k:m:np:QSrs")) != -1) {
101 case '-': /* display term only */
104 case 'a': /* OBSOLETE: map identifier to type */
105 add_mapping("arpanet", optarg);
107 case 'd': /* OBSOLETE: map identifier to type */
108 add_mapping("dialup", optarg);
110 case 'e': /* erase character */
111 erasech = optarg[0] == '^' && optarg[1] != '\0' ?
112 optarg[1] == '?' ? '\177' : CTRL(optarg[1]) :
115 case 'I': /* no initialization strings */
118 case 'i': /* interrupt character */
119 intrchar = optarg[0] == '^' && optarg[1] != '\0' ?
120 optarg[1] == '?' ? '\177' : CTRL(optarg[1]) :
123 case 'k': /* kill character */
124 killch = optarg[0] == '^' && optarg[1] != '\0' ?
125 optarg[1] == '?' ? '\177' : CTRL(optarg[1]) :
128 case 'm': /* map identifier to type */
129 add_mapping(NULL, optarg);
131 case 'n': /* OBSOLETE: set new tty driver */
133 case 'p': /* OBSOLETE: map identifier to type */
134 add_mapping("plugboard", optarg);
136 case 'Q': /* don't output control key settings */
139 case 'S': /* output TERM/TERMCAP strings */
142 case 'r': /* display term on stderr */
145 case 's': /* output TERM/TERMCAP strings */
159 ttype = get_termcap_entry(*argv, &tcapbuf);
162 Columns = tgetnum("co");
163 Lines = tgetnum("li");
166 /* Set window size */
167 (void)ioctl(STDERR_FILENO, TIOCGWINSZ, &win);
168 if (win.ws_row == 0 && win.ws_col == 0 &&
169 Lines > 0 && Columns > 0) {
171 win.ws_col = Columns;
172 (void)ioctl(STDERR_FILENO, TIOCSWINSZ, &win);
176 set_conversions(usingupper);
181 /* Set the modes if they've changed. */
182 if (memcmp(&mode, &oldmode, sizeof(mode)))
183 tcsetattr(STDERR_FILENO, TCSADRAIN, &mode);
187 (void)printf("%s\n", ttype);
190 (void)fprintf(stderr, "Terminal type is %s.\n", ttype);
192 * If erase, kill and interrupt characters could have been
193 * modified and not -Q, display the changes.
196 report("Erase", VERASE, CERASE);
197 report("Kill", VKILL, CKILL);
198 report("Interrupt", VINTR, CINTR);
203 (void)printf("%s ", ttype);
204 if (strlen(tcapbuf) > 0)
210 * Figure out what shell we're using. A hack, we look for an
211 * environmental variable SHELL ending in "csh".
213 if ((p = getenv("SHELL")) &&
214 !strcmp(p + strlen(p) - 3, "csh")) {
215 printf("set noglob;\nsetenv TERM %s;\n", ttype);
216 if (strlen(tcapbuf) > 0) {
217 printf("setenv TERMCAP '");
221 printf("unset noglob;\n");
223 printf("TERM=%s;\n", ttype);
224 if (strlen(tcapbuf) > 0) {
227 printf("';\nexport TERMCAP;\n");
229 printf("export TERM;\n");
237 * Tell the user if a control key has been changed from the default value.
240 report(const char *name, int which, u_int def)
244 new = mode.c_cc[which];
245 old = oldmode.c_cc[which];
247 if (old == new && old == def)
250 (void)fprintf(stderr, "%s %s ", name, old == new ? "is" : "set to");
253 (void)fprintf(stderr, "backspace.\n");
254 else if (new == 0177)
255 (void)fprintf(stderr, "delete.\n");
256 else if (new < 040) {
258 (void)fprintf(stderr, "control-%c (^%c).\n", new, new);
260 (void)fprintf(stderr, "%c.\n", new);
264 * Convert the obsolete argument form into something that getopt can handle.
265 * This means that -e, -i and -k get default arguments supplied for them.
268 obsolete(char *argv[])
270 for (; *argv; ++argv) {
271 if (argv[0][0] != '-' || (argv[1] && argv[1][0] != '-') ||
272 (argv[0][1] != 'e' && argv[0][1] != 'i' && argv[0][1] != 'k') ||
277 argv[0] = strdup("-e^H");
280 argv[0] = strdup("-i^C");
283 argv[0] = strdup("-k^U");
292 (void)fprintf(stderr, "%s\n%s\n",
293 "usage: tset [-IQrSs] [-] [-e ch] [-i ch] [-k ch] [-m mapping] [terminal]",
294 " reset [-IQrSs] [-] [-e ch] [-i ch] [-k ch] [-m mapping] [terminal]");