hush/console-tools/setkeycodes.c
Denis Vlasenko 2afd5ab62c *: use get_console_fd() as appropriate, and make it fail on open error -
get_console_fd_or_die().

function                                             old     new   delta
get_console_fd_or_die                                  -     163    +163
loadkmap_main                                        211     201     -10
loadfont_main                                        440     430     -10
dumpkmap_main                                        218     208     -10
kbd_mode_main                                        158     146     -12
setkeycodes_main                                     156     143     -13
get_console_fd                                       163       -    -163
------------------------------------------------------------------------------
(add/remove: 1/1 grow/shrink: 0/5 up/down: 163/-218)          Total: -55 bytes
2008-08-05 23:32:27 +00:00

50 lines
1.0 KiB
C

/* vi: set sw=4 ts=4: */
/*
* setkeycodes
*
* Copyright (C) 1994-1998 Andries E. Brouwer <aeb@cwi.nl>
*
* Adjusted for BusyBox by Erik Andersen <andersen@codepoet.org>
*
* Licensed under GPLv2 or later, see file LICENSE in this tarball for details.
*/
//#include <sys/ioctl.h>
#include "libbb.h"
/* From <linux/kd.h> */
struct kbkeycode {
unsigned scancode, keycode;
};
enum {
KDSETKEYCODE = 0x4B4D /* write kernel keycode table entry */
};
int setkeycodes_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
int setkeycodes_main(int argc, char **argv)
{
int fd, sc;
struct kbkeycode a;
if (!(argc & 1) /* if even */ || argc < 2) {
bb_show_usage();
}
fd = get_console_fd_or_die();
while (argc > 2) {
a.keycode = xatou_range(argv[2], 0, 127);
a.scancode = sc = xstrtoul_range(argv[1], 16, 0, 255);
if (a.scancode > 127) {
a.scancode -= 0xe000;
a.scancode += 128;
}
ioctl_or_perror_and_die(fd, KDSETKEYCODE, &a,
"can't set SCANCODE %x to KEYCODE %d",
sc, a.keycode);
argc -= 2;
argv += 2;
}
return EXIT_SUCCESS;
}