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/* $OpenBSD: stty.c,v 1.20 2016/07/23 08:57:18 bluhm Exp $ */ |
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/* $NetBSD: stty.c,v 1.11 1995/03/21 09:11:30 cgd Exp $ */ |
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/*- |
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* Copyright (c) 1989, 1991, 1993, 1994 |
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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/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 <errno.h> |
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#include <fcntl.h> |
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#include <limits.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 <termios.h> |
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#include <unistd.h> |
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#include "stty.h" |
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#include "extern.h" |
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int |
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main(int argc, char *argv[]) |
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{ |
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struct info i; |
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enum FMT fmt; |
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int ch; |
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fmt = NOTSET; |
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i.fd = STDIN_FILENO; |
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opterr = 0; |
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while (optind < argc && |
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strspn(argv[optind], "-aefg") == strlen(argv[optind]) && |
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(ch = getopt(argc, argv, "aef:g")) != -1) |
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switch(ch) { |
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case 'a': |
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fmt = POSIX; |
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break; |
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case 'e': |
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fmt = BSD; |
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break; |
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case 'f': |
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if ((i.fd = open(optarg, O_RDONLY | O_NONBLOCK)) < 0) |
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err(1, "%s", optarg); |
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break; |
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case 'g': |
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fmt = GFLAG; |
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break; |
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default: |
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goto args; |
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} |
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args: argc -= optind; |
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argv += optind; |
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if (ioctl(i.fd, TIOCGETD, &i.ldisc) < 0 ) |
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err(1, "TIOCGETD"); |
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if (tcgetattr(i.fd, &i.t) < 0) |
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errx(1, "not a terminal"); |
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if (ioctl(i.fd, TIOCGWINSZ, &i.win) < 0) |
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warn("TIOCGWINSZ"); |
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switch(fmt) { |
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case NOTSET: |
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if (*argv) |
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break; |
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/* FALLTHROUGH */ |
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case BSD: |
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case POSIX: |
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if (*argv) |
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errx(1, "either display or modify"); |
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if (pledge("stdio wpath cpath rpath", NULL) == -1) |
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err(1, "pledge"); |
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print(&i.t, &i.win, i.ldisc, fmt); |
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break; |
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case GFLAG: |
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if (*argv) |
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errx(1, "either display or modify"); |
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if (pledge("stdio wpath cpath rpath", NULL) == -1) |
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err(1, "pledge"); |
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gprint(&i.t, &i.win, i.ldisc); |
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break; |
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} |
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/* |
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* Cannot pledge, because of "extproc", "ostart" and "ostop" |
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*/ |
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for (i.set = i.wset = 0; *argv; ++argv) { |
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if (ksearch(&argv, &i)) |
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continue; |
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if (csearch(&argv, &i)) |
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continue; |
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if (msearch(&argv, &i)) |
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continue; |
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if (isdigit((unsigned char)**argv)) { |
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const char *error; |
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int speed; |
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speed = strtonum(*argv, 0, INT_MAX, &error); |
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if (error) |
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err(1, "%s", *argv); |
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cfsetospeed(&i.t, speed); |
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cfsetispeed(&i.t, speed); |
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i.set = 1; |
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continue; |
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} |
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if (!strncmp(*argv, "gfmt1", sizeof("gfmt1") - 1)) { |
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gread(&i.t, *argv + sizeof("gfmt1") - 1); |
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i.set = 1; |
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continue; |
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} |
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warnx("illegal option -- %s", *argv); |
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usage(); |
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} |
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if (i.set && tcsetattr(i.fd, 0, &i.t) < 0) |
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err(1, "tcsetattr"); |
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if (i.wset && ioctl(i.fd, TIOCSWINSZ, &i.win) < 0) |
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warn("TIOCSWINSZ"); |
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return (0); |
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} |
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void |
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usage(void) |
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{ |
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fprintf(stderr, "usage: %s [-a | -e | -g] [-f file] [operands]\n", |
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__progname); |
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exit (1); |
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} |