/*
* call: getkeycodes
*
* aeb, 941108
*/
#include "config.h"
#include <errno.h>
#include <stdio.h>
#include <stdlib.h>
#include <fcntl.h>
#include <sys/ioctl.h>
#include <linux/kd.h>
#include "getfd.h"
#include "nls.h"
#include "version.h"
#include "kbd_error.h"
static void __attribute__((noreturn))
usage(void)
{
fprintf(stderr, _("usage: getkeycodes\n"));
exit(EXIT_FAILURE);
}
int main(int argc, char **argv)
{
int fd;
unsigned int sc, sc0;
struct kbkeycode a;
set_progname(argv[0]);
setlocale(LC_ALL, "");
bindtextdomain(PACKAGE_NAME, LOCALEDIR);
textdomain(PACKAGE_NAME);
if (argc == 2 && !strcmp(argv[1], "-V"))
print_version_and_exit();
if (argc != 1)
usage();
if ((fd = getfd(NULL)) < 0)
kbd_error(EXIT_FAILURE, 0, _("Couldn't get a file descriptor referring to the console"));
/* Old kernels don't support changing scancodes below SC_LIM. */
a.scancode = 0;
a.keycode = 0;
if (ioctl(fd, KDGETKEYCODE, &a)) {
sc0 = 89;
} else
for (sc0 = 1; sc0 <= 88; sc0++) {
a.scancode = sc0;
a.keycode = 0;
if (ioctl(fd, KDGETKEYCODE, &a) || a.keycode != sc0)
break;
}
printf(_("Plain scancodes xx (hex) versus keycodes (dec)\n"));
if (sc0 == 89) {
printf(_("0 is an error; "
"for 1-88 (0x01-0x58) scancode equals keycode\n"));
} else if (sc0 > 1) {
printf(_("for 1-%d (0x01-0x%02x) scancode equals keycode\n"),
sc0 - 1, sc0 - 1);
}
for (sc = (sc0 & ~7); sc < 256; sc++) {
if (sc == 128)
printf(_("\n\nEscaped scancodes e0 xx (hex)\n"));
if (sc % 8 == 0) {
if (sc < 128)
printf("\n 0x%02x: ", sc);
else
printf("\ne0 %02x: ", sc - 128);
}
if (sc < sc0) {
printf(" %3d", sc);
continue;
}
a.scancode = sc;
a.keycode = 0;
if (ioctl(fd, KDGETKEYCODE, &a) == 0) {
printf(" %3d", a.keycode);
continue;
}
if (errno == EINVAL) {
printf(" -");
continue;
}
kbd_error(EXIT_FAILURE, errno, _("failed to get keycode for scancode 0x%x: "
"ioctl KDGETKEYCODE"),
sc);
exit(1);
}
printf("\n");
return EXIT_SUCCESS;
}