1 files changed, 69 insertions, 0 deletions
diff --git a/console-tools/dumpkmap.c b/console-tools/dumpkmap.c
new file mode 100644
index 0000000..c382b5a
--- /dev/null
+++ b/console-tools/dumpkmap.c
@@ -0,0 +1,69 @@
+/* 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.
+ *
+ */
+/* no options, no getopt */
+
+#include "libbb.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) MAIN_EXTERNALLY_VISIBLE;
+int dumpkmap_main(int argc UNUSED_PARAM, char **argv UNUSED_PARAM)
+{
+	struct kbentry ke;
+	int i, j, fd;
+	RESERVE_CONFIG_BUFFER(flags,MAX_NR_KEYMAPS);
+
+/*	bb_warn_ignoring_args(argc>=2);*/
+
+	fd = get_console_fd_or_die();
+
+	write(STDOUT_FILENO, "bkeymap", 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(STDOUT_FILENO, 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_or_perror(fd, KDGKBENT, &ke,
+						"ioctl failed with %s, %s, %p",
+						(char *)&ke.kb_index,
+						(char *)&ke.kb_table,
+						&ke.kb_value)
+				) {
+					write(STDOUT_FILENO, (void*)&ke.kb_value, 2);
+				}
+			}
+		}
+	}
+	if (ENABLE_FEATURE_CLEAN_UP) {
+		close(fd);
+		RELEASE_CONFIG_BUFFER(flags);
+	}
+	return EXIT_SUCCESS;
+}