blob: 22652a5e2b67167ce1ddc1cefd7da1b70e9607f2 [file] [log] [blame]
Eric Andersen61dc0572000-07-11 17:29:36 +00001/* vi: set sw=4 ts=4: */
2/*
3 * Mini dumpkmap implementation for busybox
4 *
5 * Copyright (C) Arne Bernin <arne@matrix.loopback.org>
6 *
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License as published by
9 * the Free Software Foundation; either version 2 of the License, or
10 * (at your option) any later version.
11 *
12 * This program is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * General Public License for more details.
16 *
17 * You should have received a copy of the GNU General Public License
18 * along with this program; if not, write to the Free Software
19 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
20 *
21 */
22
Eric Andersen61dc0572000-07-11 17:29:36 +000023#include <errno.h>
24#include <fcntl.h>
25#include <stdio.h>
Eric Andersened3ef502001-01-27 08:24:39 +000026#include <unistd.h>
27#include <string.h>
28#include <stdlib.h>
Eric Andersen61dc0572000-07-11 17:29:36 +000029#include <sys/ioctl.h>
Eric Andersencbe31da2001-02-20 06:14:08 +000030#include "busybox.h"
Eric Andersen61dc0572000-07-11 17:29:36 +000031
32/* From <linux/kd.h> */
33struct kbentry {
34 unsigned char kb_table;
35 unsigned char kb_index;
36 unsigned short kb_value;
37};
Mark Whitley59ab0252001-01-23 22:30:04 +000038static const int KDGKBENT = 0x4B46; /* gets one entry in translation table */
Eric Andersen61dc0572000-07-11 17:29:36 +000039
40/* From <linux/keyboard.h> */
Mark Whitley59ab0252001-01-23 22:30:04 +000041static const int NR_KEYS = 128;
42static const int MAX_NR_KEYMAPS = 256;
Eric Andersen61dc0572000-07-11 17:29:36 +000043
Eric Andersen61dc0572000-07-11 17:29:36 +000044int dumpkmap_main(int argc, char **argv)
45{
46 struct kbentry ke;
47 int i, j, fd;
48 char flags[MAX_NR_KEYMAPS], magic[] = "bkeymap";
49
50 if (argc>=2 && *argv[1]=='-') {
Eric Andersen67991cf2001-02-14 21:23:06 +000051 show_usage();
Eric Andersen61dc0572000-07-11 17:29:36 +000052 }
53
Matt Kraai439e3df2001-07-23 14:52:08 +000054 fd = open(CURRENT_VC, O_RDWR);
Eric Andersen61dc0572000-07-11 17:29:36 +000055 if (fd < 0) {
Matt Kraai439e3df2001-07-23 14:52:08 +000056 perror_msg("Error opening " CURRENT_VC);
Matt Kraai3e856ce2000-12-01 02:55:13 +000057 return EXIT_FAILURE;
Eric Andersen61dc0572000-07-11 17:29:36 +000058 }
59
60 write(1, magic, 7);
61
62 for (i=0; i < MAX_NR_KEYMAPS; i++) flags[i]=0;
63 flags[0]=1;
64 flags[1]=1;
65 flags[2]=1;
66 flags[4]=1;
67 flags[5]=1;
68 flags[6]=1;
69 flags[8]=1;
70 flags[9]=1;
71 flags[10]=1;
72 flags[12]=1;
73
74 /* dump flags */
75 for (i=0; i < MAX_NR_KEYMAPS; i++) write(1,&flags[i],1);
76
77 for (i = 0; i < MAX_NR_KEYMAPS; i++) {
78 if (flags[i] == 1) {
79 for (j = 0; j < NR_KEYS; j++) {
80 ke.kb_index = j;
81 ke.kb_table = i;
82 if (ioctl(fd, KDGKBENT, &ke) < 0) {
83
Matt Kraaidd19c692001-01-31 19:00:21 +000084 error_msg("ioctl returned: %s, %s, %s, %xqq", strerror(errno),(char *)&ke.kb_index,(char *)&ke.kb_table,(int)&ke.kb_value);
Eric Andersen61dc0572000-07-11 17:29:36 +000085 }
86 else {
Eric Andersen88f50b62000-08-10 17:59:11 +000087 write(1,(void*)&ke.kb_value,2);
Eric Andersen61dc0572000-07-11 17:29:36 +000088 }
89
90 }
91 }
92 }
93 close(fd);
Matt Kraai3e856ce2000-12-01 02:55:13 +000094 return EXIT_SUCCESS;
Eric Andersen61dc0572000-07-11 17:29:36 +000095}