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 #include <sys/types.h>
43
44 #include <ctype.h>
45 #include <err.h>
46 #include <fcntl.h>
47 #include <limits.h>
48 #include <stdio.h>
49 #include <stdlib.h>
50 #include <string.h>
51 #include <unistd.h>
52
53 #include "stty.h"
54 #include "extern.h"
55
56 int
main(int argc,char * argv[])57 main(int argc, char *argv[])
58 {
59 struct info i;
60 enum FMT fmt;
61 int ch;
62 const char *file, *errstr = NULL;
63
64 fmt = NOTSET;
65 i.fd = STDIN_FILENO;
66 file = "stdin";
67
68 opterr = 0;
69 while (optind < argc &&
70 strspn(argv[optind], "-aefg") == strlen(argv[optind]) &&
71 (ch = getopt(argc, argv, "aef:g")) != -1)
72 switch(ch) {
73 case 'a': /* undocumented: POSIX compatibility */
74 fmt = POSIX;
75 break;
76 case 'e':
77 fmt = BSD;
78 break;
79 case 'f':
80 if ((i.fd = open(optarg, O_RDONLY | O_NONBLOCK)) < 0)
81 err(1, "%s", optarg);
82 file = optarg;
83 break;
84 case 'g':
85 fmt = GFLAG;
86 break;
87 case '?':
88 default:
89 goto args;
90 }
91
92 args: argc -= optind;
93 argv += optind;
94
95 if (tcgetattr(i.fd, &i.t) < 0)
96 errx(1, "%s isn't a terminal", file);
97 if (ioctl(i.fd, TIOCGETD, &i.ldisc) < 0)
98 err(1, "TIOCGETD");
99 if (ioctl(i.fd, TIOCGWINSZ, &i.win) < 0)
100 warn("TIOCGWINSZ");
101
102 checkredirect(); /* conversion aid */
103
104 switch(fmt) {
105 case NOTSET:
106 if (*argv)
107 break;
108 /* FALLTHROUGH */
109 case BSD:
110 case POSIX:
111 print(&i.t, &i.win, i.ldisc, fmt);
112 break;
113 case GFLAG:
114 gprint(&i.t, &i.win, i.ldisc);
115 break;
116 }
117
118 for (i.set = i.wset = 0; *argv; ++argv) {
119 if (ksearch(&argv, &i))
120 continue;
121
122 if (csearch(&argv, &i))
123 continue;
124
125 if (msearch(&argv, &i))
126 continue;
127
128 if (isdigit(**argv)) {
129 speed_t speed;
130
131 speed = strtonum(*argv, 0, UINT_MAX, &errstr);
132 if (errstr)
133 err(1, "speed");
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
157 void
usage(void)158 usage(void)
159 {
160
161 (void)fprintf(stderr,
162 "usage: stty [-a | -e | -g] [-f file] [arguments]\n");
163 exit (1);
164 }
165