[821] | 1 | /* vi: set sw=4 ts=4: */
|
---|
| 2 | /*
|
---|
| 3 | * Mini dumpkmap implementation for busybox
|
---|
| 4 | *
|
---|
| 5 | * Copyright (C) Arne Bernin <arne@matrix.loopback.org>
|
---|
| 6 | *
|
---|
[1765] | 7 | * Licensed under GPLv2 or later, see file LICENSE in this tarball for details.
|
---|
[821] | 8 | *
|
---|
| 9 | */
|
---|
| 10 |
|
---|
[1765] | 11 | #include "libbb.h"
|
---|
[821] | 12 |
|
---|
| 13 | /* From <linux/kd.h> */
|
---|
| 14 | struct kbentry {
|
---|
| 15 | unsigned char kb_table;
|
---|
| 16 | unsigned char kb_index;
|
---|
| 17 | unsigned short kb_value;
|
---|
| 18 | };
|
---|
| 19 | #define KDGKBENT 0x4B46 /* gets one entry in translation table */
|
---|
| 20 |
|
---|
| 21 | /* From <linux/keyboard.h> */
|
---|
| 22 | #define NR_KEYS 128
|
---|
| 23 | #define MAX_NR_KEYMAPS 256
|
---|
| 24 |
|
---|
[1765] | 25 | int dumpkmap_main(int argc, char **argv);
|
---|
[821] | 26 | int dumpkmap_main(int argc, char **argv)
|
---|
| 27 | {
|
---|
| 28 | struct kbentry ke;
|
---|
| 29 | int i, j, fd;
|
---|
[1765] | 30 | char flags[MAX_NR_KEYMAPS];
|
---|
[821] | 31 |
|
---|
[1765] | 32 | if (argc >= 2 && argv[1][0] == '-')
|
---|
[821] | 33 | bb_show_usage();
|
---|
| 34 |
|
---|
[1765] | 35 | fd = xopen(CURRENT_VC, O_RDWR);
|
---|
[821] | 36 |
|
---|
[1765] | 37 | write(1, "bkeymap", 7);
|
---|
[821] | 38 |
|
---|
| 39 | /* Here we want to set everything to 0 except for indexes:
|
---|
| 40 | * [0-2] [4-6] [8-10] [12] */
|
---|
| 41 | memset(flags, 0x00, MAX_NR_KEYMAPS);
|
---|
| 42 | memset(flags, 0x01, 13);
|
---|
| 43 | flags[3] = flags[7] = flags[11] = 0;
|
---|
| 44 |
|
---|
| 45 | /* dump flags */
|
---|
| 46 | write(1, flags, MAX_NR_KEYMAPS);
|
---|
| 47 |
|
---|
| 48 | for (i = 0; i < MAX_NR_KEYMAPS; i++) {
|
---|
| 49 | if (flags[i] == 1) {
|
---|
| 50 | for (j = 0; j < NR_KEYS; j++) {
|
---|
| 51 | ke.kb_index = j;
|
---|
| 52 | ke.kb_table = i;
|
---|
[1765] | 53 | if (!ioctl_or_perror(fd, KDGKBENT, &ke,
|
---|
| 54 | "ioctl failed with %s, %s, %p",
|
---|
[821] | 55 | (char *)&ke.kb_index,
|
---|
| 56 | (char *)&ke.kb_table,
|
---|
[1765] | 57 | &ke.kb_value)
|
---|
| 58 | ) {
|
---|
[821] | 59 | write(1, (void*)&ke.kb_value, 2);
|
---|
| 60 | }
|
---|
| 61 | }
|
---|
| 62 | }
|
---|
| 63 | }
|
---|
| 64 | close(fd);
|
---|
| 65 | return EXIT_SUCCESS;
|
---|
| 66 | }
|
---|