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