put small subset of e2fsprogs back in the tree:

lsattr, chattr, fsck. Old e2fsprogs tree is in
e2fsprogs/old_e2fsprogs/*.

1 files changed, 220 insertions, 0 deletions

diff --git a/e2fsprogs/old_e2fsprogs/ext2fs/dir_iterate.c b/e2fsprogs/old_e2fsprogs/ext2fs/dir_iterate.c
new file mode 100644
index 0000000..b7d8735
--- /dev/null
+++ b/e2fsprogs/old_e2fsprogs/ext2fs/dir_iterate.c
@@ -0,0 +1,220 @@
+/* vi: set sw=4 ts=4: */
+/*
+ * dir_iterate.c --- ext2fs directory iteration operations
+ *
+ * Copyright (C) 1993, 1994, 1994, 1995, 1996, 1997 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
+#if HAVE_ERRNO_H
+#include <errno.h>
+#endif
+
+#include "ext2_fs.h"
+#include "ext2fsP.h"
+
+/*
+ * This function checks to see whether or not a potential deleted
+ * directory entry looks valid.  What we do is check the deleted entry
+ * and each successive entry to make sure that they all look valid and
+ * that the last deleted entry ends at the beginning of the next
+ * undeleted entry.  Returns 1 if the deleted entry looks valid, zero
+ * if not valid.
+ */
+static int ext2fs_validate_entry(char *buf, int offset, int final_offset)
+{
+	struct ext2_dir_entry *dirent;
+
+	while (offset < final_offset) {
+		dirent = (struct ext2_dir_entry *)(buf + offset);
+		offset += dirent->rec_len;
+		if ((dirent->rec_len < 8) ||
+		    ((dirent->rec_len % 4) != 0) ||
+		    (((dirent->name_len & 0xFF)+8) > dirent->rec_len))
+			return 0;
+	}
+	return (offset == final_offset);
+}
+
+errcode_t ext2fs_dir_iterate2(ext2_filsys fs,
+			      ext2_ino_t dir,
+			      int flags,
+			      char *block_buf,
+			      int (*func)(ext2_ino_t	dir,
+					  int		entry,
+					  struct ext2_dir_entry *dirent,
+					  int	offset,
+					  int	blocksize,
+					  char	*buf,
+					  void	*priv_data),
+			      void *priv_data)
+{
+	struct		dir_context	ctx;
+	errcode_t	retval;
+
+	EXT2_CHECK_MAGIC(fs, EXT2_ET_MAGIC_EXT2FS_FILSYS);
+
+	retval = ext2fs_check_directory(fs, dir);
+	if (retval)
+		return retval;
+
+	ctx.dir = dir;
+	ctx.flags = flags;
+	if (block_buf)
+		ctx.buf = block_buf;
+	else {
+		retval = ext2fs_get_mem(fs->blocksize, &ctx.buf);
+		if (retval)
+			return retval;
+	}
+	ctx.func = func;
+	ctx.priv_data = priv_data;
+	ctx.errcode = 0;
+	retval = ext2fs_block_iterate2(fs, dir, 0, 0,
+				       ext2fs_process_dir_block, &ctx);
+	if (!block_buf)
+		ext2fs_free_mem(&ctx.buf);
+	if (retval)
+		return retval;
+	return ctx.errcode;
+}
+
+struct xlate {
+	int (*func)(struct ext2_dir_entry *dirent,
+		    int		offset,
+		    int		blocksize,
+		    char	*buf,
+		    void	*priv_data);
+	void *real_private;
+};
+
+static int xlate_func(ext2_ino_t dir EXT2FS_ATTR((unused)),
+		      int entry EXT2FS_ATTR((unused)),
+		      struct ext2_dir_entry *dirent, int offset,
+		      int blocksize, char *buf, void *priv_data)
+{
+	struct xlate *xl = (struct xlate *) priv_data;
+
+	return (*xl->func)(dirent, offset, blocksize, buf, xl->real_private);
+}
+
+extern errcode_t ext2fs_dir_iterate(ext2_filsys fs,
+			      ext2_ino_t dir,
+			      int flags,
+			      char *block_buf,
+			      int (*func)(struct ext2_dir_entry *dirent,
+					  int	offset,
+					  int	blocksize,
+					  char	*buf,
+					  void	*priv_data),
+			      void *priv_data)
+{
+	struct xlate xl;
+
+	xl.real_private = priv_data;
+	xl.func = func;
+
+	return ext2fs_dir_iterate2(fs, dir, flags, block_buf,
+				   xlate_func, &xl);
+}
+
+
+/*
+ * Helper function which is private to this module.  Used by
+ * ext2fs_dir_iterate() and ext2fs_dblist_dir_iterate()
+ */
+int ext2fs_process_dir_block(ext2_filsys fs,
+			     blk_t	*blocknr,
+			     e2_blkcnt_t blockcnt,
+			     blk_t	ref_block EXT2FS_ATTR((unused)),
+			     int	ref_offset EXT2FS_ATTR((unused)),
+			     void	*priv_data)
+{
+	struct dir_context *ctx = (struct dir_context *) priv_data;
+	unsigned int	offset = 0;
+	unsigned int	next_real_entry = 0;
+	int		ret = 0;
+	int		changed = 0;
+	int		do_abort = 0;
+	int		entry, size;
+	struct ext2_dir_entry *dirent;
+
+	if (blockcnt < 0)
+		return 0;
+
+	entry = blockcnt ? DIRENT_OTHER_FILE : DIRENT_DOT_FILE;
+
+	ctx->errcode = ext2fs_read_dir_block(fs, *blocknr, ctx->buf);
+	if (ctx->errcode)
+		return BLOCK_ABORT;
+
+	while (offset < fs->blocksize) {
+		dirent = (struct ext2_dir_entry *) (ctx->buf + offset);
+		if (((offset + dirent->rec_len) > fs->blocksize) ||
+		    (dirent->rec_len < 8) ||
+		    ((dirent->rec_len % 4) != 0) ||
+		    (((dirent->name_len & 0xFF)+8) > dirent->rec_len)) {
+			ctx->errcode = EXT2_ET_DIR_CORRUPTED;
+			return BLOCK_ABORT;
+		}
+		if (!dirent->inode &&
+		    !(ctx->flags & DIRENT_FLAG_INCLUDE_EMPTY))
+			goto next;
+
+		ret = (ctx->func)(ctx->dir,
+				  (next_real_entry > offset) ?
+				  DIRENT_DELETED_FILE : entry,
+				  dirent, offset,
+				  fs->blocksize, ctx->buf,
+				  ctx->priv_data);
+		if (entry < DIRENT_OTHER_FILE)
+			entry++;
+
+		if (ret & DIRENT_CHANGED)
+			changed++;
+		if (ret & DIRENT_ABORT) {
+			do_abort++;
+			break;
+		}
+next:
+		if (next_real_entry == offset)
+			next_real_entry += dirent->rec_len;
+
+		if (ctx->flags & DIRENT_FLAG_INCLUDE_REMOVED) {
+			size = ((dirent->name_len & 0xFF) + 11) & ~3;
+
+			if (dirent->rec_len != size)  {
+				unsigned int final_offset;
+
+				final_offset = offset + dirent->rec_len;
+				offset += size;
+				while (offset < final_offset &&
+				       !ext2fs_validate_entry(ctx->buf,
+							      offset,
+							      final_offset))
+					offset += 4;
+				continue;
+			}
+		}
+		offset += dirent->rec_len;
+	}
+
+	if (changed) {
+		ctx->errcode = ext2fs_write_dir_block(fs, *blocknr, ctx->buf);
+		if (ctx->errcode)
+			return BLOCK_ABORT;
+	}
+	if (do_abort)
+		return BLOCK_ABORT;
+	return 0;
+}
+