source: branches/3.0/mindi-busybox/console-tools/kbd_mode.c @ 3085

Last change on this file since 3085 was 2725, checked in by bruno, 8 years ago
  • Update mindi-busybox to 1.18.3 to avoid problems with the tar command which is now failing on recent versions with busybox 1.7.3
  • Property svn:eol-style set to native
File size: 1.4 KB
Line 
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 source tree.
10 */
11#include "libbb.h"
12#include <linux/kd.h>
13
14int kbd_mode_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
15int 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}
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