From 4aca87515a5083ae0e31ce3177189fd43b6d05ac Mon Sep 17 00:00:00 2001
From: Andreas Baumann <mail@andreasbaumann.cc>
Date: Sat, 3 Jan 2015 13:58:15 +0100
Subject: patch to Vanilla Tomato 1.28

---
 .../e2fsprogs/old_e2fsprogs/ext2fs/cmp_bitmaps.c   | 73 ++++++++++++++++++++++
 1 file changed, 73 insertions(+)
 create mode 100644 release/src/router/busybox/e2fsprogs/old_e2fsprogs/ext2fs/cmp_bitmaps.c

(limited to 'release/src/router/busybox/e2fsprogs/old_e2fsprogs/ext2fs/cmp_bitmaps.c')

diff --git a/release/src/router/busybox/e2fsprogs/old_e2fsprogs/ext2fs/cmp_bitmaps.c b/release/src/router/busybox/e2fsprogs/old_e2fsprogs/ext2fs/cmp_bitmaps.c
new file mode 100644
index 00000000..05b8eb8d
--- /dev/null
+++ b/release/src/router/busybox/e2fsprogs/old_e2fsprogs/ext2fs/cmp_bitmaps.c
@@ -0,0 +1,73 @@
+/* vi: set sw=4 ts=4: */
+/*
+ * cmp_bitmaps.c --- routines to compare inode and block bitmaps.
+ *
+ * Copyright (C) 1995 Theodore Ts'o.
+ *
+ * %Begin-Header%
+ * This file may be redistributed under the terms of the GNU Public
+ * License.
+ * %End-Header%
+ */
+
+#include <stdio.h>
+#include <string.h>
+#if HAVE_UNISTD_H
+#include <unistd.h>
+#endif
+#include <fcntl.h>
+#include <time.h>
+#if HAVE_SYS_STAT_H
+#include <sys/stat.h>
+#endif
+#if HAVE_SYS_TYPES_H
+#include <sys/types.h>
+#endif
+
+#include "ext2_fs.h"
+#include "ext2fs.h"
+
+errcode_t ext2fs_compare_block_bitmap(ext2fs_block_bitmap bm1,
+				      ext2fs_block_bitmap bm2)
+{
+	blk_t	i;
+
+	EXT2_CHECK_MAGIC(bm1, EXT2_ET_MAGIC_BLOCK_BITMAP);
+	EXT2_CHECK_MAGIC(bm2, EXT2_ET_MAGIC_BLOCK_BITMAP);
+
+	if ((bm1->start != bm2->start) ||
+	    (bm1->end != bm2->end) ||
+	    (memcmp(bm1->bitmap, bm2->bitmap,
+		    (size_t) (bm1->end - bm1->start)/8)))
+		return EXT2_ET_NEQ_BLOCK_BITMAP;
+
+	for (i = bm1->end - ((bm1->end - bm1->start) % 8); i <= bm1->end; i++)
+		if (ext2fs_fast_test_block_bitmap(bm1, i) !=
+		    ext2fs_fast_test_block_bitmap(bm2, i))
+			return EXT2_ET_NEQ_BLOCK_BITMAP;
+
+	return 0;
+}
+
+errcode_t ext2fs_compare_inode_bitmap(ext2fs_inode_bitmap bm1,
+				      ext2fs_inode_bitmap bm2)
+{
+	ext2_ino_t	i;
+
+	EXT2_CHECK_MAGIC(bm1, EXT2_ET_MAGIC_INODE_BITMAP);
+	EXT2_CHECK_MAGIC(bm2, EXT2_ET_MAGIC_INODE_BITMAP);
+
+	if ((bm1->start != bm2->start) ||
+	    (bm1->end != bm2->end) ||
+	    (memcmp(bm1->bitmap, bm2->bitmap,
+		    (size_t) (bm1->end - bm1->start)/8)))
+		return EXT2_ET_NEQ_INODE_BITMAP;
+
+	for (i = bm1->end - ((bm1->end - bm1->start) % 8); i <= bm1->end; i++)
+		if (ext2fs_fast_test_inode_bitmap(bm1, i) !=
+		    ext2fs_fast_test_inode_bitmap(bm2, i))
+			return EXT2_ET_NEQ_INODE_BITMAP;
+
+	return 0;
+}
+
-- 
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