/*

 * call: getkeycodes

 *

 * aeb, 941108

 */

#include "config.h"

#include <errno.h>

#include <stdio.h>

#include <stdlib.h>

#include <fcntl.h>

#include <sys/ioctl.h>

#include <linux/kd.h>

#include "getfd.h"

#include "nls.h"

#include "version.h"

#include "kbd_error.h"

static void __attribute__((noreturn))

usage(void)

{

	fprintf(stderr, _("usage: getkeycodes\n"));

	exit(EXIT_FAILURE);

}

int main(int argc, char **argv)

{

	int fd;

	unsigned int sc, sc0;

	struct kbkeycode a;

	set_progname(argv[0]);

	setlocale(LC_ALL, "");

	bindtextdomain(PACKAGE_NAME, LOCALEDIR);

	textdomain(PACKAGE_NAME);

	if (argc == 2 && !strcmp(argv[1], "-V"))

		print_version_and_exit();

	if (argc != 1)

		usage();

	if ((fd = getfd(NULL)) < 0)

		kbd_error(EXIT_FAILURE, 0, _("Couldn't get a file descriptor referring to the console"));

	/* Old kernels don't support changing scancodes below SC_LIM. */

	a.scancode = 0;

	a.keycode  = 0;

	if (ioctl(fd, KDGETKEYCODE, &a)) {

		sc0 = 89;

	} else

		for (sc0 = 1; sc0 <= 88; sc0++) {

			a.scancode = sc0;

			a.keycode  = 0;

			if (ioctl(fd, KDGETKEYCODE, &a) || a.keycode != sc0)

				break;

		}

	printf(_("Plain scancodes xx (hex) versus keycodes (dec)\n"));

	if (sc0 == 89) {

		printf(_("0 is an error; "

		         "for 1-88 (0x01-0x58) scancode equals keycode\n"));

	} else if (sc0 > 1) {

		printf(_("for 1-%d (0x01-0x%02x) scancode equals keycode\n"),

		       sc0 - 1, sc0 - 1);

	}

	for (sc = (sc0 & ~7); sc < 256; sc++) {

		if (sc == 128)

			printf(_("\n\nEscaped scancodes e0 xx (hex)\n"));

		if (sc % 8 == 0) {

			if (sc < 128)

				printf("\n 0x%02x: ", sc);

			else

				printf("\ne0 %02x: ", sc - 128);

		}

		if (sc < sc0) {

			printf(" %3d", sc);

			continue;

		}

		a.scancode = sc;

		a.keycode  = 0;

		if (ioctl(fd, KDGETKEYCODE, &a) == 0) {

			printf(" %3d", a.keycode);

			continue;

		}

		if (errno == EINVAL) {

			printf("   -");

			continue;

		}

		kbd_error(EXIT_FAILURE, errno, _("failed to get keycode for scancode 0x%x: "

		                                 "ioctl KDGETKEYCODE"),

		          sc);

		exit(1);

	}

	printf("\n");

	return EXIT_SUCCESS;

}