1 /* vi: set sw=4 ts=4: */
3 * Mini dumpkmap implementation for busybox
5 * Copyright (C) Arne Bernin <arne@matrix.loopback.org>
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.
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.
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
27 #include <sys/ioctl.h>
29 /* From <linux/kd.h> */
31 unsigned char kb_table;
32 unsigned char kb_index;
33 unsigned short kb_value;
35 #define KDGKBENT 0x4B46 /* gets one entry in translation table */
37 /* From <linux/keyboard.h> */
39 #define MAX_NR_KEYMAPS 256
42 static const char dumpkmap_usage[] = "dumpkmap\n"
43 #ifndef BB_FEATURE_TRIVIAL_HELP
44 "\nPrints out a binary keyboard translation table to standard input.\n"
49 int dumpkmap_main(int argc, char **argv)
53 char flags[MAX_NR_KEYMAPS], magic[] = "bkeymap";
55 if (argc>=2 && *argv[1]=='-') {
56 usage(dumpkmap_usage);
59 fd = open("/dev/tty0", O_RDWR);
61 fprintf(stderr, "Error opening /dev/tty0: %s\n", strerror(errno));
67 for (i=0; i < MAX_NR_KEYMAPS; i++) flags[i]=0;
80 for (i=0; i < MAX_NR_KEYMAPS; i++) write(1,&flags[i],1);
82 for (i = 0; i < MAX_NR_KEYMAPS; i++) {
84 for (j = 0; j < NR_KEYS; j++) {
87 if (ioctl(fd, KDGKBENT, &ke) < 0) {
89 fprintf(stderr, "ioctl returned: %s, %s, %s, %xqq\n",strerror(errno),(char *)&ke.kb_index,(char *)&ke.kb_table,(int)&ke.kb_value);
92 write(1,&ke.kb_value,2);