| /* vi: set sw=4 ts=4: */ |
| /* |
| * Mini dumpkmap implementation for busybox |
| * |
| * Copyright (C) Arne Bernin <arne@matrix.loopback.org> |
| * |
| * 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, write to the Free Software |
| * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
| * |
| */ |
| |
| #include "busybox.h" |
| #include <errno.h> |
| #include <fcntl.h> |
| #include <stdio.h> |
| #include <unistd.h> |
| #include <string.h> |
| #include <stdlib.h> |
| #include <sys/ioctl.h> |
| |
| /* From <linux/kd.h> */ |
| struct kbentry { |
| unsigned char kb_table; |
| unsigned char kb_index; |
| unsigned short kb_value; |
| }; |
| static const int KDGKBENT = 0x4B46; /* gets one entry in translation table */ |
| |
| /* From <linux/keyboard.h> */ |
| static const int NR_KEYS = 128; |
| static const int MAX_NR_KEYMAPS = 256; |
| |
| int dumpkmap_main(int argc, char **argv) |
| { |
| struct kbentry ke; |
| int i, j, fd; |
| char flags[MAX_NR_KEYMAPS], magic[] = "bkeymap"; |
| |
| if (argc>=2 && *argv[1]=='-') { |
| usage(dumpkmap_usage); |
| } |
| |
| fd = open("/dev/tty0", O_RDWR); |
| if (fd < 0) { |
| perror_msg("Error opening /dev/tty0"); |
| return EXIT_FAILURE; |
| } |
| |
| write(1, magic, 7); |
| |
| for (i=0; i < MAX_NR_KEYMAPS; i++) flags[i]=0; |
| flags[0]=1; |
| flags[1]=1; |
| flags[2]=1; |
| flags[4]=1; |
| flags[5]=1; |
| flags[6]=1; |
| flags[8]=1; |
| flags[9]=1; |
| flags[10]=1; |
| flags[12]=1; |
| |
| /* dump flags */ |
| for (i=0; i < MAX_NR_KEYMAPS; i++) write(1,&flags[i],1); |
| |
| for (i = 0; i < MAX_NR_KEYMAPS; i++) { |
| if (flags[i] == 1) { |
| for (j = 0; j < NR_KEYS; j++) { |
| ke.kb_index = j; |
| ke.kb_table = i; |
| if (ioctl(fd, KDGKBENT, &ke) < 0) { |
| |
| error_msg("ioctl returned: %s, %s, %s, %xqq", strerror(errno),(char *)&ke.kb_index,(char *)&ke.kb_table,(int)&ke.kb_value); |
| } |
| else { |
| write(1,(void*)&ke.kb_value,2); |
| } |
| |
| } |
| } |
| } |
| close(fd); |
| return EXIT_SUCCESS; |
| } |