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 */
75 main(int argc, char *argv[])
80 int ch, noinit, noset, quiet, Sflag, sflag, showterm, usingupper;
84 if (tcgetattr(STDERR_FILENO, &mode) < 0)
85 err(1, "standard error");
88 Ospeed = cfgetospeed(&mode);
90 if ((p = strrchr(*argv, '/')))
94 usingupper = isupper(*p);
95 if (!strcasecmp(p, "reset")) {
101 noinit = noset = quiet = Sflag = sflag = showterm = 0;
102 while ((ch = getopt(argc, argv, "-a:d:e:Ii:k:m:np:QSrs")) != -1) {
104 case '-': /* display term only */
107 case 'a': /* OBSOLETE: map identifier to type */
108 add_mapping("arpanet", optarg);
110 case 'd': /* OBSOLETE: map identifier to type */
111 add_mapping("dialup", optarg);
113 case 'e': /* erase character */
114 erasech = optarg[0] == '^' && optarg[1] != '\0' ?
115 optarg[1] == '?' ? '\177' : CTRL(optarg[1]) :
118 case 'I': /* no initialization strings */
121 case 'i': /* interrupt character */
122 intrchar = optarg[0] == '^' && optarg[1] != '\0' ?
123 optarg[1] == '?' ? '\177' : CTRL(optarg[1]) :
126 case 'k': /* kill character */
127 killch = optarg[0] == '^' && optarg[1] != '\0' ?
128 optarg[1] == '?' ? '\177' : CTRL(optarg[1]) :
131 case 'm': /* map identifier to type */
132 add_mapping(NULL, optarg);
134 case 'n': /* OBSOLETE: set new tty driver */
136 case 'p': /* OBSOLETE: map identifier to type */
137 add_mapping("plugboard", optarg);
139 case 'Q': /* don't output control key settings */
142 case 'S': /* output TERM/TERMCAP strings */
145 case 'r': /* display term on stderr */
148 case 's': /* output TERM/TERMCAP strings */
162 ttype = get_termcap_entry(*argv, &tcapbuf);
165 Columns = tgetnum("co");
166 Lines = tgetnum("li");
169 /* Set window size */
170 (void)ioctl(STDERR_FILENO, TIOCGWINSZ, &win);
171 if (win.ws_row == 0 && win.ws_col == 0 &&
172 Lines > 0 && Columns > 0) {
174 win.ws_col = Columns;
175 (void)ioctl(STDERR_FILENO, TIOCSWINSZ, &win);
179 set_conversions(usingupper);
184 /* Set the modes if they've changed. */
185 if (memcmp(&mode, &oldmode, sizeof(mode)))
186 tcsetattr(STDERR_FILENO, TCSADRAIN, &mode);
190 (void)printf("%s\n", ttype);
193 (void)fprintf(stderr, "Terminal type is %s.\n", ttype);
195 * If erase, kill and interrupt characters could have been
196 * modified and not -Q, display the changes.
199 report("Erase", VERASE, CERASE);
200 report("Kill", VKILL, CKILL);
201 report("Interrupt", VINTR, CINTR);
206 (void)printf("%s ", ttype);
207 if (strlen(tcapbuf) > 0)
213 * Figure out what shell we're using. A hack, we look for an
214 * environmental variable SHELL ending in "csh".
216 if ((p = getenv("SHELL")) &&
217 !strcmp(p + strlen(p) - 3, "csh")) {
218 printf("set noglob;\nsetenv TERM %s;\n", ttype);
219 if (strlen(tcapbuf) > 0) {
220 printf("setenv TERMCAP '");
224 printf("unset noglob;\n");
226 printf("TERM=%s;\n", ttype);
227 if (strlen(tcapbuf) > 0) {
230 printf("';\nexport TERMCAP;\n");
232 printf("export TERM;\n");
240 * Tell the user if a control key has been changed from the default value.
243 report(const char *name, int which, u_int def)
247 new = mode.c_cc[which];
248 old = oldmode.c_cc[which];
250 if (old == new && old == def)
253 (void)fprintf(stderr, "%s %s ", name, old == new ? "is" : "set to");
256 (void)fprintf(stderr, "backspace.\n");
257 else if (new == 0177)
258 (void)fprintf(stderr, "delete.\n");
259 else if (new < 040) {
261 (void)fprintf(stderr, "control-%c (^%c).\n", new, new);
263 (void)fprintf(stderr, "%c.\n", new);
267 * Convert the obsolete argument form into something that getopt can handle.
268 * This means that -e, -i and -k get default arguments supplied for them.
271 obsolete(char *argv[])
273 for (; *argv; ++argv) {
274 if (argv[0][0] != '-' || (argv[1] && argv[1][0] != '-') ||
275 (argv[0][1] != 'e' && argv[0][1] != 'i' && argv[0][1] != 'k') ||
280 argv[0] = strdup("-e^H");
283 argv[0] = strdup("-i^C");
286 argv[0] = strdup("-k^U");
295 (void)fprintf(stderr, "%s\n%s\n",
296 "usage: tset [-IQrSs] [-] [-e ch] [-i ch] [-k ch] [-m mapping] [terminal]",
297 " reset [-IQrSs] [-] [-e ch] [-i ch] [-k ch] [-m mapping] [terminal]");