Added 'dumpkmap' to allow people to dump a binary keymap, which can then be

loaded in by 'loadkmap' -- submitted by Arne Bernin <arne@matrix.loopback.org>
 -Erik

2 files changed, 101 insertions, 1 deletions

diff --git a/console-tools/dumpkmap.c b/console-tools/dumpkmap.c
new file mode 100644
index 000000000..a497a07d1
--- /dev/null
+++ b/console-tools/dumpkmap.c
@@ -0,0 +1,100 @@
+/* vi: set sw=4 ts=4: */
+/*
+ * Mini dumpkmap implementation for busybox
+ *
+ * Copyright (C) Arne Bernin <arne@matrix.loopback.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
+ *
+ */
+
+#include "internal.h"
+#include <errno.h>
+#include <fcntl.h>
+#include <stdio.h>
+#include <sys/ioctl.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
+
+
+static const char dumpkmap_usage[] = "dumpkmap\n"
+#ifndef BB_FEATURE_TRIVIAL_HELP
+	"\nPrints out a binary keyboard translation table to standard input.\n"
+#endif
+	;
+
+
+int dumpkmap_main(int argc, char **argv)
+{
+	struct kbentry ke;
+	int i, j, fd;
+	char flags[MAX_NR_KEYMAPS], magic[] = "bkeymap";
+
+	if (argc>=2 && *argv[1]=='-') {
+		usage(dumpkmap_usage);
+	}
+
+	fd = open("/dev/tty0", O_RDWR);
+	if (fd < 0) {
+		fprintf(stderr, "Error opening /dev/tty0: %s\n", strerror(errno));
+		return 1;
+	}
+
+	write(1, magic, 7);
+
+	for (i=0; i < MAX_NR_KEYMAPS; i++) flags[i]=0;
+	flags[0]=1; 
+	flags[1]=1;
+	flags[2]=1;
+	flags[4]=1;
+	flags[5]=1;
+	flags[6]=1;
+	flags[8]=1;
+	flags[9]=1;
+	flags[10]=1;
+	flags[12]=1;
+	
+	/* dump flags */
+	for (i=0; i < MAX_NR_KEYMAPS; i++) write(1,&flags[i],1); 
+
+	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(fd, KDGKBENT, &ke) < 0) {
+				
+					fprintf(stderr, "ioctl returned: %s, %s, %s, %xqq\n",strerror(errno),(char *)&ke.kb_index,(char *)&ke.kb_table,(int)&ke.kb_value);
+					}
+				else {
+					write(1,&ke.kb_value,2);	
+					}	
+				
+			}
+		}
+	}
+	close(fd);
+	return 0;
+}
diff --git a/console-tools/loadkmap.c b/console-tools/loadkmap.c
index 0e8c090d2..c2e4c94ed 100644
--- a/console-tools/loadkmap.c
+++ b/console-tools/loadkmap.c
@@ -41,7 +41,7 @@ struct kbentry {
 
 static const char loadkmap_usage[] = "loadkmap\n"
 #ifndef BB_FEATURE_TRIVIAL_HELP
-	"Loads a binary keyboard translation table from standard input.\n"
+	"\nLoads a binary keyboard translation table from standard input.\n"
 #endif
 	;