1 /* $OpenBSD: stty.c,v 1.11 2003/06/11 23:42:12 deraadt Exp $ */
2 /* $NetBSD: stty.c,v 1.11 1995/03/21 09:11:30 cgd Exp $ */
3
4 /*-
5 * Copyright (c) 1989, 1991, 1993, 1994
6 * The Regents of the University of California. All rights reserved.
7 *
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
10 * are met:
11 * 1. Redistributions of source code must retain the above copyright
12 * notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in the
15 * documentation and/or other materials provided with the distribution.
16 * 3. Neither the name of the University nor the names of its contributors
17 * may be used to endorse or promote products derived from this software
18 * without specific prior written permission.
19 *
20 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
21 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
23 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
24 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
25 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
26 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
27 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
28 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
29 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
30 * SUCH DAMAGE.
31 */
32
33 #ifndef lint
34 static char copyright[] =
35 "@(#) Copyright (c) 1989, 1991, 1993, 1994\n\
36 The Regents of the University of California. All rights reserved.\n";
37 #endif /* not lint */
38
39 #ifndef lint
40 #if 0
41 static char sccsid[] = "@(#)stty.c 8.3 (Berkeley) 4/2/94";
42 #else
43 static char rcsid[] = "$OpenBSD: stty.c,v 1.11 2003/06/11 23:42:12 deraadt Exp $";
44 #endif
45 #endif /* not lint */
46
47 #include <sys/types.h>
48
49 #include <ctype.h>
50 #include <err.h>
51 #include <errno.h>
52 #include <fcntl.h>
53 #include <stdio.h>
54 #include <stdlib.h>
55 #include <string.h>
56 #include <unistd.h>
57
58 #include "stty.h"
59 #include "extern.h"
60
61 int
main(int argc,char * argv[])62 main(int argc, char *argv[])
63 {
64 struct info i;
65 enum FMT fmt;
66 int ch;
67
68 fmt = NOTSET;
69 i.fd = STDIN_FILENO;
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 break;
86 case 'g':
87 fmt = GFLAG;
88 break;
89 default:
90 goto args;
91 }
92
93 args: argc -= optind;
94 argv += optind;
95
96 if (tcgetattr(i.fd, &i.t) < 0)
97 errx(1, "not a terminal");
98 if (ioctl(i.fd, TIOCGETD, &i.ldisc) < 0 )
99 err(1, "TIOCGETD");
100 if (ioctl(i.fd, TIOCGWINSZ, &i.win) < 0)
101 warn("TIOCGWINSZ");
102
103 switch(fmt) {
104 case NOTSET:
105 if (*argv)
106 break;
107 /* FALLTHROUGH */
108 case BSD:
109 case POSIX:
110 print(&i.t, &i.win, i.ldisc, fmt);
111 break;
112 case GFLAG:
113 gprint(&i.t, &i.win, i.ldisc);
114 break;
115 }
116
117 for (i.set = i.wset = 0; *argv; ++argv) {
118 if (ksearch(&argv, &i))
119 continue;
120
121 if (csearch(&argv, &i))
122 continue;
123
124 if (msearch(&argv, &i))
125 continue;
126
127 if (isdigit(**argv)) {
128 int speed;
129
130 speed = atoi(*argv);
131 cfsetospeed(&i.t, speed);
132 cfsetispeed(&i.t, speed);
133 i.set = 1;
134 continue;
135 }
136
137 if (!strncmp(*argv, "gfmt1", sizeof("gfmt1") - 1)) {
138 gread(&i.t, *argv + sizeof("gfmt1") - 1);
139 i.set = 1;
140 continue;
141 }
142
143 warnx("illegal option -- %s", *argv);
144 usage();
145 }
146
147 if (i.set && tcsetattr(i.fd, 0, &i.t) < 0)
148 err(1, "tcsetattr");
149 if (i.wset && ioctl(i.fd, TIOCSWINSZ, &i.win) < 0)
150 warn("TIOCSWINSZ");
151 return (0);
152 }
153
154 void
usage(void)155 usage(void)
156 {
157 fprintf(stderr, "usage: %s [-a|-e|-g] [-f file] [operands]\n",
158 __progname);
159 exit (1);
160 }
161