1 /* vi: set sw=4 ts=4: */
3 * Mini loadkmap implementation for busybox
5 * Copyright (C) 1998 Enrique Zanardi <ezanardi@ull.es>
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
29 #include <sys/ioctl.h>
32 #define BINARY_KEYMAP_MAGIC "bkeymap"
34 /* From <linux/kd.h> */
36 unsigned char kb_table;
37 unsigned char kb_index;
38 unsigned short kb_value;
40 /* sets one entry in translation table */
41 #define KDSKBENT 0x4B47
43 /* From <linux/keyboard.h> */
45 #define MAX_NR_KEYMAPS 256
47 int loadkmap_main(int argc, char **argv)
51 u_short ibuff[NR_KEYS];
52 char flags[MAX_NR_KEYMAPS];
58 fd = bb_xopen(CURRENT_VC, O_RDWR);
60 if ((bb_full_read(0, buff, 7) != 7) || (strncmp(buff, BINARY_KEYMAP_MAGIC, 7) != 0))
61 bb_error_msg_and_die("This is not a valid binary keymap.");
63 if (bb_full_read(0, flags, MAX_NR_KEYMAPS) != MAX_NR_KEYMAPS)
64 bb_perror_msg_and_die("Error reading keymap flags");
66 for (i = 0; i < MAX_NR_KEYMAPS; i++) {
68 bb_full_read(0, ibuff, NR_KEYS * sizeof(u_short));
69 for (j = 0; j < NR_KEYS; j++) {
72 ke.kb_value = ibuff[j];
73 ioctl(fd, KDSKBENT, &ke);
78 /* Don't bother to close files. Exit does that
79 * automagically, so we can save a few bytes */