1 /*-
2 * Copyright (c) 1989, 1991, 1993, 1994
3 * The Regents of the University of California. All rights reserved.
4 *
5 * %sccs.include.redist.c%
6 */
7
8 #ifndef lint
9 static char copyright[] =
10 "@(#) Copyright (c) 1989, 1991, 1993, 1994\n\
11 The Regents of the University of California. All rights reserved.\n";
12 #endif /* not lint */
13
14 #ifndef lint
15 static char sccsid[] = "@(#)stty.c 8.3 (Berkeley) 04/02/94";
16 #endif /* not lint */
17
18 #include <sys/types.h>
19
20 #include <ctype.h>
21 #include <err.h>
22 #include <errno.h>
23 #include <fcntl.h>
24 #include <stdio.h>
25 #include <stdlib.h>
26 #include <string.h>
27 #include <unistd.h>
28
29 #include "stty.h"
30 #include "extern.h"
31
32 int
main(argc,argv)33 main(argc, argv)
34 int argc;
35 char *argv[];
36 {
37 struct info i;
38 enum FMT fmt;
39 int ch;
40
41 fmt = NOTSET;
42 i.fd = STDIN_FILENO;
43
44 opterr = 0;
45 while (optind < argc &&
46 strspn(argv[optind], "-aefg") == strlen(argv[optind]) &&
47 (ch = getopt(argc, argv, "aef:g")) != EOF)
48 switch(ch) {
49 case 'a': /* undocumented: POSIX compatibility */
50 fmt = POSIX;
51 break;
52 case 'e':
53 fmt = BSD;
54 break;
55 case 'f':
56 if ((i.fd = open(optarg, O_RDONLY | O_NONBLOCK)) < 0)
57 err(1, "%s", optarg);
58 break;
59 case 'g':
60 fmt = GFLAG;
61 break;
62 case '?':
63 default:
64 goto args;
65 }
66
67 args: argc -= optind;
68 argv += optind;
69
70 if (ioctl(i.fd, TIOCGETD, &i.ldisc) < 0)
71 err(1, "TIOCGETD");
72 if (tcgetattr(i.fd, &i.t) < 0)
73 err(1, "tcgetattr");
74 if (ioctl(i.fd, TIOCGWINSZ, &i.win) < 0)
75 warn("TIOCGWINSZ: %s\n", strerror(errno));
76
77 checkredirect(); /* conversion aid */
78
79 switch(fmt) {
80 case NOTSET:
81 if (*argv)
82 break;
83 /* FALLTHROUGH */
84 case BSD:
85 case POSIX:
86 print(&i.t, &i.win, i.ldisc, fmt);
87 break;
88 case GFLAG:
89 gprint(&i.t, &i.win, i.ldisc);
90 break;
91 }
92
93 for (i.set = i.wset = 0; *argv; ++argv) {
94 if (ksearch(&argv, &i))
95 continue;
96
97 if (csearch(&argv, &i))
98 continue;
99
100 if (msearch(&argv, &i))
101 continue;
102
103 if (isdigit(**argv)) {
104 int speed;
105
106 speed = atoi(*argv);
107 cfsetospeed(&i.t, speed);
108 cfsetispeed(&i.t, speed);
109 i.set = 1;
110 continue;
111 }
112
113 if (!strncmp(*argv, "gfmt1", sizeof("gfmt1") - 1)) {
114 gread(&i.t, *argv + sizeof("gfmt1") - 1);
115 continue;
116 }
117
118 warnx("illegal option -- %s", *argv);
119 usage();
120 }
121
122 if (i.set && tcsetattr(i.fd, 0, &i.t) < 0)
123 err(1, "tcsetattr");
124 if (i.wset && ioctl(i.fd, TIOCSWINSZ, &i.win) < 0)
125 warn("TIOCSWINSZ");
126 exit(0);
127 }
128
129 void
usage()130 usage()
131 {
132
133 (void)fprintf(stderr, "usage: stty: [-a|-e|-g] [-f file] [options]\n");
134 exit (1);
135 }
136