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 #include <sys/types.h>
31
32 #include <ctype.h>
33 #include <err.h>
34 #include <fcntl.h>
35 #include <limits.h>
36 #include <stdio.h>
37 #include <stdlib.h>
38 #include <string.h>
39 #include <unistd.h>
40
41 #include "stty.h"
42 #include "extern.h"
43
44 int
main(int argc,char * argv[])45 main(int argc, char *argv[])
46 {
47 struct info i;
48 enum FMT fmt;
49 int ch;
50 const char *file, *errstr = NULL;
51
52 fmt = NOTSET;
53 i.fd = STDIN_FILENO;
54 file = "stdin";
55
56 opterr = 0;
57 while (optind < argc &&
58 strspn(argv[optind], "-aefg") == strlen(argv[optind]) &&
59 (ch = getopt(argc, argv, "aef:g")) != -1)
60 switch(ch) {
61 case 'a': /* undocumented: POSIX compatibility */
62 fmt = POSIX;
63 break;
64 case 'e':
65 fmt = BSD;
66 break;
67 case 'f':
68 if ((i.fd = open(optarg, O_RDONLY | O_NONBLOCK)) < 0)
69 err(1, "%s", optarg);
70 file = optarg;
71 break;
72 case 'g':
73 fmt = GFLAG;
74 break;
75 case '?':
76 default:
77 goto args;
78 }
79
80 args: argc -= optind;
81 argv += optind;
82
83 if (tcgetattr(i.fd, &i.t) < 0)
84 errx(1, "%s isn't a terminal", file);
85 if (ioctl(i.fd, TIOCGETD, &i.ldisc) < 0)
86 err(1, "TIOCGETD");
87 if (ioctl(i.fd, TIOCGWINSZ, &i.win) < 0)
88 warn("TIOCGWINSZ");
89
90 checkredirect(); /* conversion aid */
91
92 switch(fmt) {
93 case NOTSET:
94 if (*argv)
95 break;
96 /* FALLTHROUGH */
97 case BSD:
98 case POSIX:
99 print(&i.t, &i.win, i.ldisc, fmt);
100 break;
101 case GFLAG:
102 gprint(&i.t, &i.win, i.ldisc);
103 break;
104 }
105
106 for (i.set = i.wset = 0; *argv; ++argv) {
107 if (ksearch(&argv, &i))
108 continue;
109
110 if (csearch(&argv, &i))
111 continue;
112
113 if (msearch(&argv, &i))
114 continue;
115
116 if (isdigit(**argv)) {
117 speed_t speed;
118
119 speed = strtonum(*argv, 0, UINT_MAX, &errstr);
120 if (errstr)
121 err(1, "speed");
122 cfsetospeed(&i.t, speed);
123 cfsetispeed(&i.t, speed);
124 i.set = 1;
125 continue;
126 }
127
128 if (!strncmp(*argv, "gfmt1", sizeof("gfmt1") - 1)) {
129 gread(&i.t, *argv + sizeof("gfmt1") - 1);
130 i.set = 1;
131 continue;
132 }
133
134 warnx("illegal option -- %s", *argv);
135 usage();
136 }
137
138 if (i.set && tcsetattr(i.fd, 0, &i.t) < 0)
139 err(1, "tcsetattr");
140 if (i.wset && ioctl(i.fd, TIOCSWINSZ, &i.win) < 0)
141 warn("TIOCSWINSZ");
142 exit(0);
143 }
144
145 void
usage(void)146 usage(void)
147 {
148
149 (void)fprintf(stderr,
150 "usage: stty [-a | -e | -g] [-f file] [arguments]\n");
151 exit (1);
152 }
153