imported original firmware WRT54GL_v4.30.11_11_US

1 files changed, 154 insertions, 0 deletions

diff --git a/release/src/router/busybox/dd.c b/release/src/router/busybox/dd.c
new file mode 100644
index 00000000..d46db82a
--- /dev/null
+++ b/release/src/router/busybox/dd.c
@@ -0,0 +1,154 @@
+/* vi: set sw=4 ts=4: */
+/*
+ * Mini dd implementation for busybox
+ *
+ *
+ * Copyright (C) 2000 by Matt Kraai <kraai@alumni.carnegiemellon.edu>
+ *
+ * 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 <sys/types.h>
+#include <stdlib.h>
+#include <stdio.h>
+#include <unistd.h>
+#include <string.h>
+#include <fcntl.h>
+#include "busybox.h"
+
+
+static const struct suffix_mult dd_suffixes[] = {
+	{ "c", 1 },
+	{ "w", 2 },
+	{ "b", 512 },
+	{ "kD", 1000 },
+	{ "k", 1024 },
+	{ "MD", 1000000 },
+	{ "M", 1048576 },
+	{ "GD", 1000000000 },
+	{ "G", 1073741824 },
+	{ NULL, 0 }
+};
+
+int dd_main(int argc, char **argv)
+{
+	int i, ifd, ofd, oflag, sync_flag = FALSE, trunc = TRUE;
+	size_t in_full = 0, in_part = 0, out_full = 0, out_part = 0;
+	size_t bs = 512, count = -1;
+	ssize_t n;
+	off_t seek = 0, skip = 0;
+	char *infile = NULL, *outfile = NULL, *buf;
+
+	for (i = 1; i < argc; i++) {
+		if (strncmp("bs=", argv[i], 3) == 0)
+			bs = parse_number(argv[i]+3, dd_suffixes);
+		else if (strncmp("count=", argv[i], 6) == 0)
+			count = parse_number(argv[i]+6, dd_suffixes);
+		else if (strncmp("seek=", argv[i], 5) == 0)
+			seek = parse_number(argv[i]+5, dd_suffixes);
+		else if (strncmp("skip=", argv[i], 5) == 0)
+			skip = parse_number(argv[i]+5, dd_suffixes);
+		else if (strncmp("if=", argv[i], 3) == 0)
+			infile = argv[i]+3;
+		else if (strncmp("of=", argv[i], 3) == 0)
+			outfile = argv[i]+3;
+		else if (strncmp("conv=", argv[i], 5) == 0) {
+			buf = argv[i]+5;
+			while (1) {
+				if (strncmp("notrunc", buf, 7) == 0) {
+					trunc = FALSE;
+					buf += 7;
+				} else if (strncmp("sync", buf, 4) == 0) {
+					sync_flag = TRUE;
+					buf += 4;
+				} else {
+					error_msg_and_die("invalid conversion `%s'", argv[i]+5);
+				}
+				if (buf[0] == '\0')
+					break;
+				if (buf[0] == ',')
+					buf++;
+			}
+		} else
+			show_usage();
+	}
+
+	buf = xmalloc(bs);
+
+	if (infile != NULL) {
+		if ((ifd = open(infile, O_RDONLY)) < 0)
+			perror_msg_and_die("%s", infile);
+	} else {
+		ifd = STDIN_FILENO;
+		infile = "standard input";
+	}
+
+	if (outfile != NULL) {
+		oflag = O_WRONLY | O_CREAT;
+
+		if (!seek && trunc)
+			oflag |= O_TRUNC;
+
+		if ((ofd = open(outfile, oflag, 0666)) < 0)
+			perror_msg_and_die("%s", outfile);
+
+		if (seek && trunc) {
+			if (ftruncate(ofd, seek * bs) < 0)
+				perror_msg_and_die("%s", outfile);
+		}
+	} else {
+		ofd = STDOUT_FILENO;
+		outfile = "standard output";
+	}
+
+	if (skip) {
+		if (lseek(ifd, skip * bs, SEEK_CUR) < 0)
+			perror_msg_and_die("%s", infile);
+	}
+
+	if (seek) {
+		if (lseek(ofd, seek * bs, SEEK_CUR) < 0)
+			perror_msg_and_die("%s", outfile);
+	}
+
+	while (in_full + in_part != count) {
+		n = safe_read(ifd, buf, bs);
+		if (n < 0)
+			perror_msg_and_die("%s", infile);
+		if (n == 0)
+			break;
+		if (n == bs)
+			in_full++;
+		else
+			in_part++;
+		if (sync_flag) {
+			memset(buf + n, '\0', bs - n);
+			n = bs;
+		}
+		n = full_write(ofd, buf, n);
+		if (n < 0)
+			perror_msg_and_die("%s", outfile);
+		if (n == bs)
+			out_full++;
+		else
+			out_part++;
+	}
+
+	fprintf(stderr, "%ld+%ld records in\n", (long)in_full, (long)in_part);
+	fprintf(stderr, "%ld+%ld records out\n", (long)out_full, (long)out_part);
+
+	return EXIT_SUCCESS;
+}