1 /* vi: set sw=4 ts=4: */
3 * Mini dumpkmap implementation for busybox
5 * Copyright (C) Arne Bernin <arne@matrix.loopback.org>
7 * Licensed under GPLv2 or later, see file LICENSE in this tarball for details.
13 /* From <linux/kd.h> */
15 unsigned char kb_table;
16 unsigned char kb_index;
17 unsigned short kb_value;
19 #define KDGKBENT 0x4B46 /* gets one entry in translation table */
21 /* From <linux/keyboard.h> */
23 #define MAX_NR_KEYMAPS 256
25 int dumpkmap_main(int argc, char **argv)
29 char flags[MAX_NR_KEYMAPS], magic[] = "bkeymap";
31 if (argc >= 2 && *argv[1] == '-')
34 fd = xopen(CURRENT_VC, O_RDWR);
38 /* Here we want to set everything to 0 except for indexes:
39 * [0-2] [4-6] [8-10] [12] */
40 memset(flags, 0x00, MAX_NR_KEYMAPS);
41 memset(flags, 0x01, 13);
42 flags[3] = flags[7] = flags[11] = 0;
45 write(1, flags, MAX_NR_KEYMAPS);
47 for (i = 0; i < MAX_NR_KEYMAPS; i++) {
49 for (j = 0; j < NR_KEYS; j++) {
52 if (ioctl(fd, KDGKBENT, &ke) < 0) {
53 bb_perror_msg("ioctl failed with %s, %s, %p",
58 write(1, (void*)&ke.kb_value, 2);