Contents of /tags/mkinitrd-6_3_5/busybox/console-tools/kbd_mode.c
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Sat Jan 29 14:06:54 2011 UTC (13 years, 8 months ago) by niro
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Sat Jan 29 14:06:54 2011 UTC (13 years, 8 months ago) by niro
File MIME type: text/plain
File size: 1462 byte(s)
tagged 'mkinitrd-6_3_5'
1 | /* vi: set sw=4 ts=4: */ |
2 | /* |
3 | * Mini kbd_mode implementation for busybox |
4 | * |
5 | * Copyright (C) 2007 Loic Grenie <loic.grenie@gmail.com> |
6 | * written using Andries Brouwer <aeb@cwi.nl>'s kbd_mode from |
7 | * console-utils v0.2.3, licensed under GNU GPLv2 |
8 | * |
9 | * Licensed under GPLv2 or later, see file LICENSE in this tarball for details. |
10 | */ |
11 | #include "libbb.h" |
12 | #include <linux/kd.h> |
13 | |
14 | int kbd_mode_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE; |
15 | int kbd_mode_main(int argc UNUSED_PARAM, char **argv) |
16 | { |
17 | enum { |
18 | SCANCODE = (1 << 0), |
19 | ASCII = (1 << 1), |
20 | MEDIUMRAW = (1 << 2), |
21 | UNICODE = (1 << 3), |
22 | }; |
23 | int fd; |
24 | unsigned opt; |
25 | const char *tty_name = CURRENT_TTY; |
26 | |
27 | opt = getopt32(argv, "sakuC:", &tty_name); |
28 | fd = xopen_nonblocking(tty_name); |
29 | opt &= 0xf; /* clear -C bit, see (*) */ |
30 | |
31 | if (!opt) { /* print current setting */ |
32 | const char *mode = "unknown"; |
33 | int m; |
34 | |
35 | xioctl(fd, KDGKBMODE, &m); |
36 | if (m == K_RAW) |
37 | mode = "raw (scancode)"; |
38 | else if (m == K_XLATE) |
39 | mode = "default (ASCII)"; |
40 | else if (m == K_MEDIUMRAW) |
41 | mode = "mediumraw (keycode)"; |
42 | else if (m == K_UNICODE) |
43 | mode = "Unicode (UTF-8)"; |
44 | printf("The keyboard is in %s mode\n", mode); |
45 | } else { |
46 | /* here we depend on specific bits assigned to options (*) */ |
47 | opt = opt & UNICODE ? 3 : opt >> 1; |
48 | /* double cast prevents warnings about widening conversion */ |
49 | xioctl(fd, KDSKBMODE, (void*)(ptrdiff_t)opt); |
50 | } |
51 | |
52 | if (ENABLE_FEATURE_CLEAN_UP) |
53 | close(fd); |
54 | return EXIT_SUCCESS; |
55 | } |