hush/console-tools/dumpkmap.c
Rob Landley d921b2ecc0 Remove bb_ prefixes from xfuncs.c (and a few other places), consolidate
things like xasprintf() into xfuncs.c, remove xprint_file_by_name() (it only
had one user), clean up lots of #includes...  General cleanup pass.  What I've
been doing for the last couple days.

And it conflicts!  I've removed httpd.c from this checkin due to somebody else
touching that file.  It builds for me.  I have to catch a bus.  (Now you know
why I'm looking forward to Mercurial.)
2006-08-03 15:41:12 +00:00

66 lines
1.4 KiB
C

/* vi: set sw=4 ts=4: */
/*
* Mini dumpkmap implementation for busybox
*
* Copyright (C) Arne Bernin <arne@matrix.loopback.org>
*
* Licensed under GPLv2 or later, see file LICENSE in this tarball for details.
*
*/
#include "busybox.h"
/* From <linux/kd.h> */
struct kbentry {
unsigned char kb_table;
unsigned char kb_index;
unsigned short kb_value;
};
#define KDGKBENT 0x4B46 /* gets one entry in translation table */
/* From <linux/keyboard.h> */
#define NR_KEYS 128
#define MAX_NR_KEYMAPS 256
int dumpkmap_main(int argc, char **argv)
{
struct kbentry ke;
int i, j, fd;
char flags[MAX_NR_KEYMAPS], magic[] = "bkeymap";
if (argc >= 2 && *argv[1] == '-')
bb_show_usage();
fd = xopen(CURRENT_VC, O_RDWR);
write(1, magic, 7);
/* Here we want to set everything to 0 except for indexes:
* [0-2] [4-6] [8-10] [12] */
memset(flags, 0x00, MAX_NR_KEYMAPS);
memset(flags, 0x01, 13);
flags[3] = flags[7] = flags[11] = 0;
/* dump flags */
write(1, flags, MAX_NR_KEYMAPS);
for (i = 0; i < MAX_NR_KEYMAPS; i++) {
if (flags[i] == 1) {
for (j = 0; j < NR_KEYS; j++) {
ke.kb_index = j;
ke.kb_table = i;
if (ioctl(fd, KDGKBENT, &ke) < 0) {
bb_perror_msg("ioctl failed with %s, %s, %p",
(char *)&ke.kb_index,
(char *)&ke.kb_table,
&ke.kb_value);
} else {
write(1, (void*)&ke.kb_value, 2);
}
}
}
}
close(fd);
return EXIT_SUCCESS;
}