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: releng/11.0/bin/stty/stty.c 285438 2015-07-13 05:59:41Z bapt $");
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 <limits.h>
51#include <stdio.h>
52#include <stdlib.h>
53#include <string.h>
54#include <unistd.h>
55
56#include "stty.h"
57#include "extern.h"
58
59int
60main(int argc, char *argv[])
61{
62	struct info i;
63	enum FMT fmt;
64	int ch;
65	const char *file, *errstr = NULL;
66
67	fmt = NOTSET;
68	i.fd = STDIN_FILENO;
69	file = "stdin";
70
71	opterr = 0;
72	while (optind < argc &&
73	    strspn(argv[optind], "-aefg") == strlen(argv[optind]) &&
74	    (ch = getopt(argc, argv, "aef:g")) != -1)
75		switch(ch) {
76		case 'a':		/* undocumented: POSIX compatibility */
77			fmt = POSIX;
78			break;
79		case 'e':
80			fmt = BSD;
81			break;
82		case 'f':
83			if ((i.fd = open(optarg, O_RDONLY | O_NONBLOCK)) < 0)
84				err(1, "%s", optarg);
85			file = optarg;
86			break;
87		case 'g':
88			fmt = GFLAG;
89			break;
90		case '?':
91		default:
92			goto args;
93		}
94
95args:	argc -= optind;
96	argv += optind;
97
98	if (tcgetattr(i.fd, &i.t) < 0)
99		errx(1, "%s isn't a terminal", file);
100	if (ioctl(i.fd, TIOCGETD, &i.ldisc) < 0)
101		err(1, "TIOCGETD");
102	if (ioctl(i.fd, TIOCGWINSZ, &i.win) < 0)
103		warn("TIOCGWINSZ");
104
105	checkredirect();			/* conversion aid */
106
107	switch(fmt) {
108	case NOTSET:
109		if (*argv)
110			break;
111		/* FALLTHROUGH */
112	case BSD:
113	case POSIX:
114		print(&i.t, &i.win, i.ldisc, fmt);
115		break;
116	case GFLAG:
117		gprint(&i.t, &i.win, i.ldisc);
118		break;
119	}
120
121	for (i.set = i.wset = 0; *argv; ++argv) {
122		if (ksearch(&argv, &i))
123			continue;
124
125		if (csearch(&argv, &i))
126			continue;
127
128		if (msearch(&argv, &i))
129			continue;
130
131		if (isdigit(**argv)) {
132			speed_t speed;
133
134			speed = strtonum(*argv, 0, UINT_MAX, &errstr);
135			if (errstr)
136				err(1, "speed");
137			cfsetospeed(&i.t, speed);
138			cfsetispeed(&i.t, speed);
139			i.set = 1;
140			continue;
141		}
142
143		if (!strncmp(*argv, "gfmt1", sizeof("gfmt1") - 1)) {
144			gread(&i.t, *argv + sizeof("gfmt1") - 1);
145			i.set = 1;
146			continue;
147		}
148
149		warnx("illegal option -- %s", *argv);
150		usage();
151	}
152
153	if (i.set && tcsetattr(i.fd, 0, &i.t) < 0)
154		err(1, "tcsetattr");
155	if (i.wset && ioctl(i.fd, TIOCSWINSZ, &i.win) < 0)
156		warn("TIOCSWINSZ");
157	exit(0);
158}
159
160void
161usage(void)
162{
163
164	(void)fprintf(stderr,
165	    "usage: stty [-a | -e | -g] [-f file] [arguments]\n");
166	exit (1);
167}
168