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 <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
59 int
main(int argc,char * argv[])60 main(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
95 args: 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
160 void
usage(void)161 usage(void)
162 {
163
164 (void)fprintf(stderr,
165 "usage: stty [-a | -e | -g] [-f file] [arguments]\n");
166 exit (1);
167 }
168