contrib/dropkeymaps.c

   1 #include <stdio.h>
   2 #include <stdlib.h>
   3 #include <sys/ioctl.h>
   4
   5 #include "getfd.h"
   6
   7 #include <linux/kd.h>
   8 #include <linux/keyboard.h>
   9
  10 int
  11 main(void)
  12 {
  13         struct kbentry ke;
  14
  15         int i, j, fd;
  16         char *console = NULL;
  17
  18         /* get console */
  19         fd = getfd(console);
  20
  21         for (i = 0; i < MAX_NR_KEYMAPS; i++) {
  22                 for (j = 0; j < NR_KEYS; j++) {
  23                         ke.kb_index = j;
  24                         ke.kb_table = i;
  25                         ke.kb_value = K_HOLE;
  26
  27                         if (ioctl(fd, KDSKBENT, (unsigned long)&ke)) {
  28                                 perror("KDSKBENT");
  29                                 fprintf(stderr, "Error: cannot deallocate or clear keymap %d key %d\n", i, j);
  30                                 return EXIT_FAILURE;
  31                         }
  32                 }
  33
  34                 /* deallocate keymap */
  35                 ke.kb_index = 0;
  36                 ke.kb_table = i;
  37                 ke.kb_value = K_NOSUCHMAP;
  38
  39                 if (ioctl(fd, KDSKBENT, (unsigned long)&ke)) {
  40                         perror("KDSKBENT");
  41                         fprintf(stderr, "Error: could not deallocate keymap %d\n", i);
  42                         return EXIT_FAILURE;
  43                 }
  44         }
  45
  46         return EXIT_SUCCESS;
  47 }