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 * 3. 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
32 static 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
38 static 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 <fcntl.h>
49 #include <limits.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
58 int
main(int argc,char * argv[])59 main(int argc, char *argv[])
60 {
61 struct info i;
62 enum FMT fmt;
63 int ch;
64 const char *file, *errstr = NULL;
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
94 args: 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 = strtonum(*argv, 0, UINT_MAX, &errstr);
134 if (errstr)
135 err(1, "speed");
136 cfsetospeed(&i.t, speed);
137 cfsetispeed(&i.t, speed);
138 i.set = 1;
139 continue;
140 }
141
142 if (!strncmp(*argv, "gfmt1", sizeof("gfmt1") - 1)) {
143 gread(&i.t, *argv + sizeof("gfmt1") - 1);
144 i.set = 1;
145 continue;
146 }
147
148 warnx("illegal option -- %s", *argv);
149 usage();
150 }
151
152 if (i.set && tcsetattr(i.fd, 0, &i.t) < 0)
153 err(1, "tcsetattr");
154 if (i.wset && ioctl(i.fd, TIOCSWINSZ, &i.win) < 0)
155 warn("TIOCSWINSZ");
156 exit(0);
157 }
158
159 void
usage(void)160 usage(void)
161 {
162
163 (void)fprintf(stderr,
164 "usage: stty [-a | -e | -g] [-f file] [arguments]\n");
165 exit (1);
166 }
167