*
* 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 source tree.
*/
-#include "busybox.h"
-#include <stdio.h>
-#include <stdlib.h>
-#include <fcntl.h>
-#include <sys/ioctl.h>
+//usage:#define setkeycodes_trivial_usage
+//usage: "SCANCODE KEYCODE..."
+//usage:#define setkeycodes_full_usage "\n\n"
+//usage: "Set entries into the kernel's scancode-to-keycode map,\n"
+//usage: "allowing unusual keyboards to generate usable keycodes.\n\n"
+//usage: "SCANCODE may be either xx or e0xx (hexadecimal),\n"
+//usage: "and KEYCODE is given in decimal."
+//usage:
+//usage:#define setkeycodes_example_usage
+//usage: "$ setkeycodes e030 127\n"
+#include "libbb.h"
/* From <linux/kd.h> */
struct kbkeycode {
- unsigned int scancode, keycode;
+ unsigned scancode, keycode;
+};
+enum {
+ KDSETKEYCODE = 0x4B4D /* write kernel keycode table entry */
};
-static const int 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;
+ struct kbkeycode a;
- if (argc % 2 != 1 || argc < 2) {
- usage(setkeycodes_usage);
+ if (!(argc & 1) /* if even */ || 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) {
- error_msg_and_die("error reading SCANCODE: '%s'", argv[1]);
- }
- if (a.scancode > 127) {
- a.scancode -= 0xe000;
- a.scancode += 128;
- }
- if (a.scancode > 255 || a.keycode > 127) {
- error_msg_and_die("SCANCODE or KEYCODE outside bounds");
- }
- if (ioctl(fd,KDSETKEYCODE,&a)) {
- perror("KDSETKEYCODE");
- error_msg_and_die("failed to set SCANCODE %x to KEYCODE %d", sc, a.keycode);
+ fd = get_console_fd_or_die();
+
+ while (argv[1]) {
+ int sc = xstrtoul_range(argv[1], 16, 0, 0xe07f);
+ if (sc >= 0xe000) {
+ sc -= 0xe000;
+ sc += 0x0080;
+ }
+ a.scancode = sc;
+ a.keycode = xatou_range(argv[2], 0, 255);
+ ioctl_or_perror_and_die(fd, KDSETKEYCODE, &a,
+ "can't set SCANCODE %x to KEYCODE %d",
+ sc, a.keycode);
+ argv += 2;
}
- argc -= 2;
- argv += 2;
- }
return EXIT_SUCCESS;
}