1130b656e5
This will make a number of things easier in the future, as well as (finally!) avoiding the Id-smashing problem which has plagued developers for so long. Boy, I'm glad we're not using sup anymore. This update would have been insane otherwise.
165 lines
4.1 KiB
C
165 lines
4.1 KiB
C
/*-
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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. 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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* $FreeBSD$
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*/
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#ifndef lint
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static char const copyright[] =
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"@(#) Copyright (c) 1989, 1991, 1993, 1994\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 const sccsid[] = "@(#)stty.c 8.3 (Berkeley) 4/2/94";
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#endif /* not lint */
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#include <sys/types.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 <stdio.h>
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#include <stdlib.h>
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#include <string.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(argc, argv)
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int argc;
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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")) != EOF)
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switch(ch) {
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case 'a': /* undocumented: POSIX compatibility */
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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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case '?':
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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 (tcgetattr(i.fd, &i.t) < 0)
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errx(1, "stdin isn't a terminal");
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if (ioctl(i.fd, TIOCGETD, &i.ldisc) < 0)
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err(1, "TIOCGETD");
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if (ioctl(i.fd, TIOCGWINSZ, &i.win) < 0)
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warn("TIOCGWINSZ: %s\n", strerror(errno));
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checkredirect(); /* conversion aid */
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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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print(&i.t, &i.win, i.ldisc, fmt);
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break;
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case GFLAG:
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gprint(&i.t, &i.win, i.ldisc);
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break;
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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(**argv)) {
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int speed;
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speed = atoi(*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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exit(0);
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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, "usage: stty: [-a|-e|-g] [-f file] [options]\n");
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exit (1);
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}
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