imported original firmware WRT54GL_v4.30.11_11_US

1 files changed, 89 insertions, 0 deletions

diff --git a/release/src/router/busybox/loadkmap.c b/release/src/router/busybox/loadkmap.c
new file mode 100644
index 00000000..4f217d63
--- /dev/null
+++ b/release/src/router/busybox/loadkmap.c
@@ -0,0 +1,89 @@
+/* vi: set sw=4 ts=4: */
+/*
+ * Mini loadkmap implementation for busybox
+ *
+ * Copyright (C) 1998 Enrique Zanardi <ezanardi@ull.es>
+ *
+ * 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 <errno.h>
+#include <fcntl.h>
+#include <stdio.h>
+#include <string.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <sys/ioctl.h>
+#include "busybox.h"
+
+#define BINARY_KEYMAP_MAGIC "bkeymap"
+
+/* From <linux/kd.h> */
+struct kbentry {
+	unsigned char kb_table;
+	unsigned char kb_index;
+	unsigned short kb_value;
+};
+static const int KDSKBENT = 0x4B47;  /* sets one entry in translation table */
+
+/* From <linux/keyboard.h> */
+static const int NR_KEYS = 128;
+static const int MAX_NR_KEYMAPS = 256;
+
+int loadkmap_main(int argc, char **argv)
+{
+	struct kbentry ke;
+	u_short *ibuff;
+	int i, j, fd, readsz, pos, ibuffsz = NR_KEYS * sizeof(u_short);
+	char flags[MAX_NR_KEYMAPS], buff[7];
+
+	if (argc != 1)
+		show_usage();
+
+	fd = open(CURRENT_VC, O_RDWR);
+	if (fd < 0)
+		perror_msg_and_die("Error opening " CURRENT_VC);
+
+	read(0, buff, 7);
+	if (0 != strncmp(buff, BINARY_KEYMAP_MAGIC, 7))
+		error_msg_and_die("This is not a valid binary keymap.");
+
+	if (MAX_NR_KEYMAPS != read(0, flags, MAX_NR_KEYMAPS))
+		perror_msg_and_die("Error reading keymap flags");
+
+	ibuff = (u_short *) xmalloc(ibuffsz);
+
+	for (i = 0; i < MAX_NR_KEYMAPS; i++) {
+		if (flags[i] == 1) {
+			pos = 0;
+			while (pos < ibuffsz) {
+				if ((readsz = read(0, (char *) ibuff + pos, ibuffsz - pos)) < 0)
+					perror_msg_and_die("Error reading keymap");
+				pos += readsz;
+			}
+			for (j = 0; j < NR_KEYS; j++) {
+				ke.kb_index = j;
+				ke.kb_table = i;
+				ke.kb_value = ibuff[j];
+				ioctl(fd, KDSKBENT, &ke);
+			}
+		}
+	}
+	/* Don't bother to close files.  Exit does that 
+	 * automagically, so we can save a few bytes */
+	/* close(fd); */
+	return EXIT_SUCCESS;
+}