mirror of
https://github.com/sheumann/hush.git
synced 2024-12-28 07:30:23 +00:00
66 lines
1.5 KiB
C
66 lines
1.5 KiB
C
/* vi: set sw=4 ts=4: */
|
|
/*
|
|
* Mini loadkmap implementation for busybox
|
|
*
|
|
* Copyright (C) 1998 Enrique Zanardi <ezanardi@ull.es>
|
|
*
|
|
* Licensed under GPLv2 or later, see file LICENSE in this tarball for details.
|
|
*/
|
|
#include "libbb.h"
|
|
|
|
#define BINARY_KEYMAP_MAGIC "bkeymap"
|
|
|
|
/* From <linux/kd.h> */
|
|
struct kbentry {
|
|
unsigned char kb_table;
|
|
unsigned char kb_index;
|
|
unsigned short kb_value;
|
|
};
|
|
/* sets one entry in translation table */
|
|
#define KDSKBENT 0x4B47
|
|
|
|
/* From <linux/keyboard.h> */
|
|
#define NR_KEYS 128
|
|
#define MAX_NR_KEYMAPS 256
|
|
|
|
int loadkmap_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
|
|
int loadkmap_main(int argc UNUSED_PARAM, char **argv UNUSED_PARAM)
|
|
{
|
|
struct kbentry ke;
|
|
int i, j, fd;
|
|
uint16_t ibuff[NR_KEYS];
|
|
/* const char *tty_name = CURRENT_TTY; */
|
|
RESERVE_CONFIG_BUFFER(flags,MAX_NR_KEYMAPS);
|
|
|
|
/* bb_warn_ignoring_args(argc >= 2); */
|
|
fd = get_console_fd_or_die();
|
|
/* or maybe:
|
|
opt = getopt32(argv, "C:", &tty_name);
|
|
fd = xopen(tty_name, O_NONBLOCK);
|
|
*/
|
|
|
|
xread(STDIN_FILENO, flags, 7);
|
|
if (strncmp(flags, BINARY_KEYMAP_MAGIC, 7))
|
|
bb_error_msg_and_die("not a valid binary keymap");
|
|
|
|
xread(STDIN_FILENO, flags, MAX_NR_KEYMAPS);
|
|
|
|
for (i = 0; i < MAX_NR_KEYMAPS; i++) {
|
|
if (flags[i] == 1) {
|
|
xread(STDIN_FILENO, ibuff, NR_KEYS * sizeof(uint16_t));
|
|
for (j = 0; j < NR_KEYS; j++) {
|
|
ke.kb_index = j;
|
|
ke.kb_table = i;
|
|
ke.kb_value = ibuff[j];
|
|
ioctl(fd, KDSKBENT, &ke);
|
|
}
|
|
}
|
|
}
|
|
|
|
if (ENABLE_FEATURE_CLEAN_UP) {
|
|
close(fd);
|
|
RELEASE_CONFIG_BUFFER(flags);
|
|
}
|
|
return EXIT_SUCCESS;
|
|
}
|