*
* Copyright (C) 1994-1998 Andries E. Brouwer <aeb@cwi.nl>
*
- * Adjusted for BusyBox by Erik Andersen <andersee@debian.org>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ * Adjusted for BusyBox by Erik Andersen <andersen@codepoet.org>
*
+ * Licensed under GPLv2 or later, see file LICENSE in this tarball for details.
*/
-#include "internal.h"
-#include <stdio.h>
-#include <stdlib.h>
-#include <fcntl.h>
-#include <sys/ioctl.h>
-#include <linux/kd.h>
+//#include <sys/ioctl.h>
+#include "libbb.h"
-static const char setkeycodes_usage[] =
- "setkeycodes SCANCODE KEYCODE ...\n"
-#ifndef BB_FEATURE_TRIVIAL_HELP
- "\nSet entries into the kernel's scancode-to-keycode map,\n"
- "allowing unusual keyboards to generate usable keycodes.\n\n"
- "SCANCODE may be either xx or e0xx (hexadecimal),\n"
- "and KEYCODE is given in decimal\n"
-#endif
- ;
+/* From <linux/kd.h> */
+struct kbkeycode {
+ unsigned scancode, keycode;
+};
+enum {
+ KDSETKEYCODE = 0x4B4D /* write kernel keycode table entry */
+};
-extern int
-setkeycodes_main(int argc, char** argv)
+int setkeycodes_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
+int setkeycodes_main(int argc, char **argv)
{
- char *ep;
- int fd, sc;
- struct kbkeycode a;
+ int fd, sc;
+ struct kbkeycode a;
- if (argc % 2 != 1 || argc < 2) {
- usage(setkeycodes_usage);
+ if (argc % 2 != 1 || argc < 2) {
+ bb_show_usage();
}
-
- fd = get_console_fd("/dev/console");
- while (argc > 2) {
- a.keycode = atoi(argv[2]);
- a.scancode = sc = strtol(argv[1], &ep, 16);
- if (*ep) {
- fatalError("error reading SCANCODE: '%s'\n", argv[1]);
- }
- if (a.scancode > 127) {
- a.scancode -= 0xe000;
- a.scancode += 128;
- }
- if (a.scancode > 255 || a.keycode > 127) {
- fatalError("SCANCODE or KEYCODE outside bounds\n");
- }
- if (ioctl(fd,KDSETKEYCODE,&a)) {
- perror("KDSETKEYCODE");
- fatalError("failed to set SCANCODE %x to KEYCODE %d\n", sc, a.keycode);
+ fd = get_console_fd();
+
+ 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,
+ "failed to set SCANCODE %x to KEYCODE %d",
+ sc, a.keycode);
+ argc -= 2;
+ argv += 2;
}
- argc -= 2;
- argv += 2;
- }
- return( TRUE);
+ return EXIT_SUCCESS;
}