/* * 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 "internal.h" #include <errno.h> #include <fcntl.h> #include <stdio.h> #include <linux/kd.h> #include <linux/keyboard.h> #include <sys/ioctl.h> static const char loadkmap_usage[] = "loadkmap\n" "\n" "\tLoad a binary keyboard translation table from standard input.\n" "\n"; 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],magic[]="bkeymap",buff[7]; fd = open("/dev/tty0", O_RDWR); if (fd < 0) { fprintf(stderr, "Error opening /dev/tty0: %s\n", strerror(errno)); return 1; } read(0,buff,7); if (0 != strncmp(buff,magic,7)) { fprintf(stderr, "This is not a valid binary keymap.\n"); return 1; } if ( MAX_NR_KEYMAPS != read(0,flags,MAX_NR_KEYMAPS) ) { fprintf(stderr, "Error reading keymap flags: %s\n", strerror(errno)); return 1; } ibuff=(u_short *) malloc(ibuffsz); if (!ibuff) { fprintf(stderr, "Out of memory.\n"); return 1; } 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 ) { fprintf(stderr, "Error reading keymap: %s\n", strerror(errno)); return 1; } 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); } } } close (fd); return 0; }