busybox/console-tools/kbd_mode.c

/* vi: set sw=4 ts=4: */
/*
 * Mini kbd_mode implementation for busybox
 *
 * Copyright (C) 2007 Loic Grenie <loic.grenie@gmail.com>
 *   written using Andries Brouwer <aeb@cwi.nl>'s kbd_mode from
 *   console-utils v0.2.3, licensed under GNU GPLv2
 *
 * Licensed under GPLv2 or later, see file LICENSE in this tarball for details.
 */
#include "libbb.h"
#include <linux/kd.h>

int kbd_mode_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
int kbd_mode_main(int argc UNUSED_PARAM, char **argv)
{
	enum {
		SCANCODE  = (1 << 0),
		ASCII	  = (1 << 1),
		MEDIUMRAW = (1 << 2),
		UNICODE	  = (1 << 3),
	};
	int fd;
	unsigned opt;
	const char *tty_name = CURRENT_TTY;

	opt = getopt32(argv, "sakuC:", &tty_name);
	fd = xopen(tty_name, O_NONBLOCK);
	opt &= 0xf; /* clear -C bit, see (*) */

	if (!opt) { /* print current setting */
		const char *mode = "unknown";
		int m;

		xioctl(fd, KDGKBMODE, &m);
		if (m == K_RAW)
			mode = "raw (scancode)";
		else if (m == K_XLATE)
			mode = "default (ASCII)";
		else if (m == K_MEDIUMRAW)
			mode = "mediumraw (keycode)";
		else if (m == K_UNICODE)
			mode = "Unicode (UTF-8)";
		printf("The keyboard is in %s mode\n", mode);
	} else {
		/* here we depend on specific bits assigned to options (*) */
		opt = opt & UNICODE ? 3 : opt >> 1;
		/* double cast prevents warnings about widening conversion */
		xioctl(fd, KDSKBMODE, (void*)(ptrdiff_t)opt);
	}

	if (ENABLE_FEATURE_CLEAN_UP)
		close(fd);
	return EXIT_SUCCESS;
}
1	niro	816	/* 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(tty_name, O_NONBLOCK);
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			}