8a16b7a18f
Mainly focus on files that use BSD 3-Clause license. The Software Package Data Exchange (SPDX) group provides a specification to make it easier for automated tools to detect and summarize well known opensource licenses. We are gradually adopting the specification, noting that the tags are considered only advisory and do not, in any way, superceed or replace the license texts. Special thanks to Wind River for providing access to "The Duke of Highlander" tool: an older (2014) run over FreeBSD tree was useful as a starting point.
300 lines
7.5 KiB
C
300 lines
7.5 KiB
C
/*-
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* SPDX-License-Identifier: BSD-3-Clause
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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. 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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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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#ifndef lint
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static const 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
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#ifndef lint
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static const char sccsid[] = "@(#)tset.c 8.1 (Berkeley) 6/9/93";
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#endif
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#include <sys/types.h>
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#include <sys/ioctl.h>
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#include <ctype.h>
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#include <err.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <termcap.h>
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#include <termios.h>
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#include <unistd.h>
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#include "extern.h"
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void obsolete(char *[]);
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void report(const char *, int, u_int);
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void usage(void);
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struct termios mode, oldmode;
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int erasech; /* 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 killch; /* new kill character */
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int Lines, Columns; /* window size */
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speed_t Ospeed;
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int
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main(int argc, 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 *p, *tcapbuf;
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const char *ttype;
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if (tcgetattr(STDERR_FILENO, &mode) < 0)
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err(1, "standard error");
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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")) != -1) {
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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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erasech = 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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killch = 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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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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if (strlen(tcapbuf) > 0)
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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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printf("set noglob;\nsetenv TERM %s;\n", ttype);
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if (strlen(tcapbuf) > 0) {
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printf("setenv TERMCAP '");
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wrtermcap(tcapbuf);
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printf("';\n");
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}
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printf("unset noglob;\n");
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} else {
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printf("TERM=%s;\n", ttype);
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if (strlen(tcapbuf) > 0) {
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printf("TERMCAP='");
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wrtermcap(tcapbuf);
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printf("';\nexport TERMCAP;\n");
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}
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printf("export TERM;\n");
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}
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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(const char *name, int which, u_int def)
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{
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u_int old, new;
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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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if (new == 010)
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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(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' && argv[0][1] != 'k') ||
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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] = strdup("-e^H");
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break;
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case 'i':
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argv[0] = strdup("-i^C");
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break;
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case 'k':
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argv[0] = strdup("-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(void)
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{
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(void)fprintf(stderr, "%s\n%s\n",
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"usage: tset [-IQrSs] [-] [-e ch] [-i ch] [-k ch] [-m mapping] [terminal]",
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" reset [-IQrSs] [-] [-e ch] [-i ch] [-k ch] [-m mapping] [terminal]");
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exit(1);
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}
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