304 lines
7.7 KiB
C
304 lines
7.7 KiB
C
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/*-
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* Copyright (c) 1980, 1991, 1993
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* The Regents of the University of California. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the University of
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* California, Berkeley and its contributors.
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* 4. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#ifndef lint
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static char copyright[] =
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"@(#) Copyright (c) 1980, 1991, 1993\n\
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The Regents of the University of California. All rights reserved.\n";
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#endif /* not lint */
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#ifndef lint
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static char sccsid[] = "@(#)tset.c 8.1 (Berkeley) 6/9/93";
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#endif /* not lint */
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#include <sys/types.h>
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#include <sys/ioctl.h>
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#include <termios.h>
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#include <errno.h>
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#include <unistd.h>
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#include <stdlib.h>
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#include <stdio.h>
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#include <ctype.h>
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#include <string.h>
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#include "extern.h"
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void obsolete __P((char *[]));
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void report __P((char *, int, u_int));
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void usage __P((void));
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struct termios mode, oldmode;
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int erasechar; /* new erase character */
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int intrchar; /* new interrupt character */
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int isreset; /* invoked as reset */
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int killchar; /* new kill character */
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int lines, columns; /* window size */
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int
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main(argc, argv)
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int argc;
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char *argv[];
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{
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#ifdef TIOCGWINSZ
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struct winsize win;
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#endif
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int ch, noinit, noset, quiet, Sflag, sflag, showterm, usingupper;
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char savech, *p, *t, *tcapbuf, *ttype;
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if (tcgetattr(STDERR_FILENO, &mode) < 0)
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err("standard error: %s", strerror(errno));
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oldmode = mode;
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ospeed = cfgetospeed(&mode);
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if (p = strrchr(*argv, '/'))
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++p;
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else
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p = *argv;
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usingupper = isupper(*p);
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if (!strcasecmp(p, "reset")) {
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isreset = 1;
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reset_mode();
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}
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obsolete(argv);
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noinit = noset = quiet = Sflag = sflag = showterm = 0;
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while ((ch = getopt(argc, argv, "-a:d:e:Ii:k:m:np:QSrs")) != EOF) {
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switch (ch) {
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case '-': /* display term only */
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noset = 1;
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break;
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case 'a': /* OBSOLETE: map identifier to type */
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add_mapping("arpanet", optarg);
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break;
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case 'd': /* OBSOLETE: map identifier to type */
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add_mapping("dialup", optarg);
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break;
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case 'e': /* erase character */
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erasechar = optarg[0] == '^' && optarg[1] != '\0' ?
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optarg[1] == '?' ? '\177' : CTRL(optarg[1]) :
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optarg[0];
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break;
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case 'I': /* no initialization strings */
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noinit = 1;
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break;
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case 'i': /* interrupt character */
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intrchar = optarg[0] == '^' && optarg[1] != '\0' ?
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optarg[1] == '?' ? '\177' : CTRL(optarg[1]) :
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optarg[0];
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break;
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case 'k': /* kill character */
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killchar = optarg[0] == '^' && optarg[1] != '\0' ?
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optarg[1] == '?' ? '\177' : CTRL(optarg[1]) :
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optarg[0];
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break;
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case 'm': /* map identifier to type */
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add_mapping(NULL, optarg);
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break;
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case 'n': /* OBSOLETE: set new tty driver */
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break;
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case 'p': /* OBSOLETE: map identifier to type */
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add_mapping("plugboard", optarg);
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break;
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case 'Q': /* don't output control key settings */
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quiet = 1;
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break;
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case 'S': /* output TERM/TERMCAP strings */
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Sflag = 1;
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break;
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case 'r': /* display term on stderr */
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showterm = 1;
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break;
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case 's': /* output TERM/TERMCAP strings */
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sflag = 1;
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break;
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case '?':
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default:
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usage();
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}
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}
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argc -= optind;
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argv += optind;
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if (argc > 1)
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usage();
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ttype = get_termcap_entry(*argv, &tcapbuf);
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if (!noset) {
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columns = tgetnum("co");
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lines = tgetnum("li");
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#ifdef TIOCGWINSZ
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/* Set window size */
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(void)ioctl(STDERR_FILENO, TIOCGWINSZ, &win);
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if (win.ws_row == 0 && win.ws_col == 0 &&
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lines > 0 && columns > 0) {
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win.ws_row = lines;
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win.ws_col = columns;
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(void)ioctl(STDERR_FILENO, TIOCSWINSZ, &win);
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}
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#endif
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set_control_chars();
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set_conversions(usingupper);
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if (!noinit)
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set_init();
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/* Set the modes if they've changed. */
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if (memcmp(&mode, &oldmode, sizeof(mode)))
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tcsetattr(STDERR_FILENO, TCSADRAIN, &mode);
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}
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/* Get the terminal name from the entry. */
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p = tcapbuf;
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if (p != NULL && *p != ':') {
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t = p;
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if (p = strpbrk(p, "|:")) {
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savech = *p;
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*p = '\0';
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if ((ttype = strdup(t)) == NULL)
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err("%s", strerror(errno));
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*p = savech;
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}
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}
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if (noset)
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(void)printf("%s\n", ttype);
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else {
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if (showterm)
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(void)fprintf(stderr, "Terminal type is %s.\n", ttype);
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/*
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* If erase, kill and interrupt characters could have been
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* modified and not -Q, display the changes.
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*/
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if (!quiet) {
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report("Erase", VERASE, CERASE);
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report("Kill", VKILL, CKILL);
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report("Interrupt", VINTR, CINTR);
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}
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}
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if (Sflag) {
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(void)printf("%s ", ttype);
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wrtermcap(tcapbuf);
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}
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if (sflag) {
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/*
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* Figure out what shell we're using. A hack, we look for an
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* environmental variable SHELL ending in "csh".
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*/
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if ((p = getenv("SHELL")) &&
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!strcmp(p + strlen(p) - 3, "csh")) {
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p = "set noglob;\nsetenv TERM %s;\nsetenv TERMCAP '";
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t = "';\nunset noglob;\n";
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} else {
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p = "TERM=%s;\nTERMCAP='";
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t = "';\nexport TERMCAP TERM;\n";
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}
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(void)printf(p, ttype);
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wrtermcap(tcapbuf);
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(void)printf(t);
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}
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exit(0);
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}
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/*
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* Tell the user if a control key has been changed from the default value.
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*/
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void
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report(name, which, def)
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char *name;
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int which;
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u_int def;
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{
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u_int old, new;
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char *bp, buf[1024];
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new = mode.c_cc[which];
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old = oldmode.c_cc[which];
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if (old == new && old == def)
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return;
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(void)fprintf(stderr, "%s %s ", name, old == new ? "is" : "set to");
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bp = buf;
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if (tgetstr("kb", &bp) && new == buf[0] && buf[1] == '\0')
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(void)fprintf(stderr, "backspace.\n");
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else if (new == 0177)
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(void)fprintf(stderr, "delete.\n");
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else if (new < 040) {
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new ^= 0100;
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(void)fprintf(stderr, "control-%c (^%c).\n", new, new);
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} else
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(void)fprintf(stderr, "%c.\n", new);
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}
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/*
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* Convert the obsolete argument form into something that getopt can handle.
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* This means that -e, -i and -k get default arguments supplied for them.
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*/
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void
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obsolete(argv)
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char *argv[];
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{
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for (; *argv; ++argv) {
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if (argv[0][0] != '-' || argv[1] && argv[1][0] != '-' ||
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argv[0][1] != 'e' && argv[0][1] != 'i' &&
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argv[0][1] != 'k' || argv[0][2] != '\0')
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continue;
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switch(argv[0][1]) {
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case 'e':
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argv[0] = "-e^H";
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break;
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case 'i':
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argv[0] = "-i^C";
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break;
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case 'k':
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argv[0] = "-k^U";
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break;
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}
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}
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}
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void
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usage()
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{
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(void)fprintf(stderr,
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"usage: tset [-IQrSs] [-] [-e ch] [-i ch] [-k ch] [-m mapping] [terminal]\n");
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exit(1);
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}
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