*
* Copyright (C) 1998 Enrique Zanardi <ezanardi@ull.es>
*
- * Licensed under GPLv2 or later, see file LICENSE in this tarball for details.
- *
+ * Licensed under GPLv2 or later, see file LICENSE in this source tree.
*/
+//usage:#define loadkmap_trivial_usage
+//usage: "< keymap"
+//usage:#define loadkmap_full_usage "\n\n"
+//usage: "Load a binary keyboard translation table from stdin\n"
+/* //usage: "\n -C TTY Affect TTY instead of /dev/tty" */
+//usage:
+//usage:#define loadkmap_example_usage
+//usage: "$ loadkmap < /etc/i18n/lang-keymap\n"
+
#include "libbb.h"
#define BINARY_KEYMAP_MAGIC "bkeymap"
#define MAX_NR_KEYMAPS 256
int loadkmap_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
-int loadkmap_main(int argc UNUSED_PARAM, char **argv UNUSED_PARAM)
+int loadkmap_main(int argc UNUSED_PARAM, char **argv)
{
struct kbentry ke;
int i, j, fd;
uint16_t ibuff[NR_KEYS];
- RESERVE_CONFIG_BUFFER(flags,MAX_NR_KEYMAPS);
-
-/* bb_warn_ignoring_args(argc>=2);*/
+/* const char *tty_name = CURRENT_TTY; */
+ RESERVE_CONFIG_BUFFER(flags, MAX_NR_KEYMAPS);
- fd = xopen(CURRENT_VC, O_RDWR);
+ /* When user accidentally runs "loadkmap FILE"
+ * instead of "loadkmap <FILE", we end up waiting for input from tty.
+ * Let's prevent it: */
+ if (argv[1])
+ bb_show_usage();
+/* bb_warn_ignoring_args(argv[1]); */
+ fd = get_console_fd_or_die();
+/* or maybe:
+ opt = getopt32(argv, "C:", &tty_name);
+ fd = xopen_nonblocking(tty_name);
+*/
xread(STDIN_FILENO, flags, 7);
if (strncmp(flags, BINARY_KEYMAP_MAGIC, 7))