blob: 2d989dfc499f83243d5eb1147848a9c48075480c [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 Andersen3570a342000-09-25 21:45:58 +000023#include "busybox.h"
Eric Andersen61dc0572000-07-11 17:29:36 +000024#include <errno.h>
25#include <fcntl.h>
26#include <stdio.h>
27#include <sys/ioctl.h>
28
29/* From <linux/kd.h> */
30struct kbentry {
31 unsigned char kb_table;
32 unsigned char kb_index;
33 unsigned short kb_value;
34};
35#define KDGKBENT 0x4B46 /* gets one entry in translation table */
36
37/* From <linux/keyboard.h> */
38#define NR_KEYS 128
39#define MAX_NR_KEYMAPS 256
40
Eric Andersen61dc0572000-07-11 17:29:36 +000041int dumpkmap_main(int argc, char **argv)
42{
43 struct kbentry ke;
44 int i, j, fd;
45 char flags[MAX_NR_KEYMAPS], magic[] = "bkeymap";
46
47 if (argc>=2 && *argv[1]=='-') {
48 usage(dumpkmap_usage);
49 }
50
51 fd = open("/dev/tty0", O_RDWR);
52 if (fd < 0) {
Matt Kraaid537a952000-07-14 01:51:25 +000053 errorMsg("Error opening /dev/tty0: %s\n", strerror(errno));
Eric Andersen61dc0572000-07-11 17:29:36 +000054 return 1;
55 }
56
57 write(1, magic, 7);
58
59 for (i=0; i < MAX_NR_KEYMAPS; i++) flags[i]=0;
60 flags[0]=1;
61 flags[1]=1;
62 flags[2]=1;
63 flags[4]=1;
64 flags[5]=1;
65 flags[6]=1;
66 flags[8]=1;
67 flags[9]=1;
68 flags[10]=1;
69 flags[12]=1;
70
71 /* dump flags */
72 for (i=0; i < MAX_NR_KEYMAPS; i++) write(1,&flags[i],1);
73
74 for (i = 0; i < MAX_NR_KEYMAPS; i++) {
75 if (flags[i] == 1) {
76 for (j = 0; j < NR_KEYS; j++) {
77 ke.kb_index = j;
78 ke.kb_table = i;
79 if (ioctl(fd, KDGKBENT, &ke) < 0) {
80
Matt Kraaid537a952000-07-14 01:51:25 +000081 errorMsg("ioctl returned: %s, %s, %s, %xqq\n",strerror(errno),(char *)&ke.kb_index,(char *)&ke.kb_table,(int)&ke.kb_value);
Eric Andersen61dc0572000-07-11 17:29:36 +000082 }
83 else {
Eric Andersen88f50b62000-08-10 17:59:11 +000084 write(1,(void*)&ke.kb_value,2);
Eric Andersen61dc0572000-07-11 17:29:36 +000085 }
86
87 }
88 }
89 }
90 close(fd);
91 return 0;
92}