/* vi: set sw=4 ts=4: *//* * Mini loadkmap implementation for busybox * * Copyright (C) 1998 Enrique Zanardi <ezanardi@ull.es> * * 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 <errno.h>#include <fcntl.h>#include <stdio.h>#include <string.h>#include <stdlib.h>#include <unistd.h>#include <sys/ioctl.h>#include "busybox.h"#define BINARY_KEYMAP_MAGIC "bkeymap"/* From <linux/kd.h> */struct kbentry {	unsigned char kb_table;	unsigned char kb_index;	unsigned short kb_value;};static const int KDSKBENT = 0x4B47;  /* sets one entry in translation table *//* From <linux/keyboard.h> */static const int NR_KEYS = 128;static const int MAX_NR_KEYMAPS = 256;int loadkmap_main(int argc, char **argv){	struct kbentry ke;	u_short *ibuff;	int i, j, fd, readsz, pos, ibuffsz = NR_KEYS * sizeof(u_short);	char flags[MAX_NR_KEYMAPS], buff[7];	if (argc != 1)		show_usage();	fd = open(CURRENT_VC, O_RDWR);	if (fd < 0)		perror_msg_and_die("Error opening " CURRENT_VC);	read(0, buff, 7);	if (0 != strncmp(buff, BINARY_KEYMAP_MAGIC, 7))		error_msg_and_die("This is not a valid binary keymap.");	if (MAX_NR_KEYMAPS != read(0, flags, MAX_NR_KEYMAPS))		perror_msg_and_die("Error reading keymap flags");	ibuff = (u_short *) xmalloc(ibuffsz);	for (i = 0; i < MAX_NR_KEYMAPS; i++) {		if (flags[i] == 1) {			pos = 0;			while (pos < ibuffsz) {				if ((readsz = read(0, (char *) ibuff + pos, ibuffsz - pos)) < 0)					perror_msg_and_die("Error reading keymap");				pos += readsz;			}			for (j = 0; j < NR_KEYS; j++) {				ke.kb_index = j;				ke.kb_table = i;				ke.kb_value = ibuff[j];				ioctl(fd, KDSKBENT, &ke);			}		}	}	/* Don't bother to close files.  Exit does that 	 * automagically, so we can save a few bytes */	/* close(fd); */	return EXIT_SUCCESS;}