1/*-
2 * Copyright (c) 1989, 1991, 1993, 1994
3 *	The Regents of the University of California.  All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
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 * 4. Neither the name of the University nor the names of its contributors
14 *    may be used to endorse or promote products derived from this software
15 *    without specific prior written permission.
16 *
17 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27 * SUCH DAMAGE.
28 */
29
30#if 0
31#ifndef lint
32static char const copyright[] =
33"@(#) Copyright (c) 1989, 1991, 1993, 1994\n\
34	The Regents of the University of California.  All rights reserved.\n";
35#endif /* not lint */
36
37#ifndef lint
38static char sccsid[] = "@(#)stty.c	8.3 (Berkeley) 4/2/94";
39#endif /* not lint */
40#endif
41#include <sys/cdefs.h>
42__FBSDID("$FreeBSD$");
43
44#include <sys/types.h>
45
46#include <ctype.h>
47#include <err.h>
48#include <errno.h>
49#include <fcntl.h>
50#include <stdio.h>
51#include <stdlib.h>
52#include <string.h>
53#include <unistd.h>
54
55#include "stty.h"
56#include "extern.h"
57
58int
59main(int argc, char *argv[])
60{
61	struct info i;
62	enum FMT fmt;
63	int ch;
64	const char *file;
65
66	fmt = NOTSET;
67	i.fd = STDIN_FILENO;
68	file = "stdin";
69
70	opterr = 0;
71	while (optind < argc &&
72	    strspn(argv[optind], "-aefg") == strlen(argv[optind]) &&
73	    (ch = getopt(argc, argv, "aef:g")) != -1)
74		switch(ch) {
75		case 'a':		/* undocumented: POSIX compatibility */
76			fmt = POSIX;
77			break;
78		case 'e':
79			fmt = BSD;
80			break;
81		case 'f':
82			if ((i.fd = open(optarg, O_RDONLY | O_NONBLOCK)) < 0)
83				err(1, "%s", optarg);
84			file = optarg;
85			break;
86		case 'g':
87			fmt = GFLAG;
88			break;
89		case '?':
90		default:
91			goto args;
92		}
93
94args:	argc -= optind;
95	argv += optind;
96
97	if (tcgetattr(i.fd, &i.t) < 0)
98		errx(1, "%s isn't a terminal", file);
99	if (ioctl(i.fd, TIOCGETD, &i.ldisc) < 0)
100		err(1, "TIOCGETD");
101	if (ioctl(i.fd, TIOCGWINSZ, &i.win) < 0)
102		warn("TIOCGWINSZ");
103
104	checkredirect();			/* conversion aid */
105
106	switch(fmt) {
107	case NOTSET:
108		if (*argv)
109			break;
110		/* FALLTHROUGH */
111	case BSD:
112	case POSIX:
113		print(&i.t, &i.win, i.ldisc, fmt);
114		break;
115	case GFLAG:
116		gprint(&i.t, &i.win, i.ldisc);
117		break;
118	}
119
120	for (i.set = i.wset = 0; *argv; ++argv) {
121		if (ksearch(&argv, &i))
122			continue;
123
124		if (csearch(&argv, &i))
125			continue;
126
127		if (msearch(&argv, &i))
128			continue;
129
130		if (isdigit(**argv)) {
131			speed_t speed;
132
133			speed = atoi(*argv);
134			cfsetospeed(&i.t, speed);
135			cfsetispeed(&i.t, speed);
136			i.set = 1;
137			continue;
138		}
139
140		if (!strncmp(*argv, "gfmt1", sizeof("gfmt1") - 1)) {
141			gread(&i.t, *argv + sizeof("gfmt1") - 1);
142			i.set = 1;
143			continue;
144		}
145
146		warnx("illegal option -- %s", *argv);
147		usage();
148	}
149
150	if (i.set && tcsetattr(i.fd, 0, &i.t) < 0)
151		err(1, "tcsetattr");
152	if (i.wset && ioctl(i.fd, TIOCSWINSZ, &i.win) < 0)
153		warn("TIOCSWINSZ");
154	exit(0);
155}
156
157void
158usage(void)
159{
160
161	(void)fprintf(stderr,
162	    "usage: stty [-a | -e | -g] [-f file] [arguments]\n");
163	exit (1);
164}
165