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/*
* readmap.c
*
* Copyright (C) 2007 Red Hat, Inc. All rights reserved.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include <errno.h>
#include <fcntl.h>
#include <sys/ioctl.h>
#include <linux/keyboard.h>
#ifdef NR_KEYS
#undef NR_KEYS
#define NR_KEYS 128
#endif
#include <linux/kd.h>
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include <unistd.h>
#include "../isys/lang.h"
int main(int argc, char ** argv) {
int console;
int kmap, key;
struct kbentry entry;
int keymaps[MAX_NR_KEYMAPS];
int count = 0;
int out;
short keymap[NR_KEYS];
int magic = KMAP_MAGIC;
int verbose = 0;
if (argc != 2) {
printf("bad usage\n");
exit(1);
}
if (getenv("DEBUG") != NULL)
verbose = 1;
memset(keymaps, 0, sizeof(keymaps));
console = open("/dev/tty0", O_RDWR);
if (console < 0) {
perror("open VGA+KBD");
exit(1);
}
for (kmap = 0; kmap < MAX_NR_KEYMAPS; kmap++) {
for (key = 0; key < NR_KEYS; key++) {
entry.kb_index = key;
entry.kb_table = kmap;
if (ioctl(console, KDGKBENT, &entry)) {
perror("ioctl failed");
exit(1);
} else if (KTYP(entry.kb_value) != KT_SPEC) {
keymaps[kmap] = 1;
count++;
break;
}
}
}
if (verbose) fprintf(stderr, "found %d valid keymaps\n", count);
if (verbose) fprintf(stderr, "creating keymap file %s\n", argv[1]);
if ((out = open(argv[1], O_WRONLY | O_CREAT | O_TRUNC, 0666)) < 1) {
perror("open keymap");
exit(1);
}
if (write(out, &magic, sizeof(magic)) != sizeof(magic)) {
perror("write magic");
exit(1);
}
if (write(out, keymaps, sizeof(keymaps)) != sizeof(keymaps)) {
perror("write header");
exit(1);
}
for (kmap = 0; kmap < MAX_NR_KEYMAPS; kmap++) {
if (!keymaps[kmap]) continue;
for (key = 0; key < NR_KEYS; key++) {
entry.kb_index = key;
entry.kb_table = kmap;
if (ioctl(console, KDGKBENT, &entry)) {
perror("ioctl failed");
exit(1);
} else {
keymap[key] = entry.kb_value;
}
}
if (write(out, keymap, sizeof(keymap)) != sizeof(keymap)) {
perror("write keymap");
exit(1);
}
}
close(out);
return 0;
}
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