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  +   li~hi@p/\hJbѿmן_I|+ ?     /*
 * ext2fs.h --- ext2fs
 *
 * Copyright (C) 1993, 1994, 1995, 1996 Theodore Ts'o.
 *
 * %Begin-Header%
 * This file may be redistributed under the terms of the GNU Library
 * General Public License, version 2.
 * %End-Header%
 */

#ifndef _EXT2FS_EXT2FS_H
#define _EXT2FS_EXT2FS_H

#ifdef __GNUC__
#define EXT2FS_ATTR(x) __attribute__(x)
#else
#define EXT2FS_ATTR(x)
#endif

#ifdef __cplusplus
extern "C" {
#endif

/*
 * Non-GNU C compilers won't necessarily understand inline
 */
#if (!defined(__GNUC__) && !defined(__WATCOMC__))
#define NO_INLINE_FUNCS
#endif

/*
 * Where the master copy of the superblock is located, and how big
 * superblocks are supposed to be.  We define SUPERBLOCK_SIZE because
 * the size of the superblock structure is not necessarily trustworthy
 * (some versions have the padding set up so that the superblock is
 * 1032 bytes long).
 */
#define SUPERBLOCK_OFFSET	1024
#define SUPERBLOCK_SIZE		1024

/*
 * The last ext2fs revision level that this version of the library is
 * able to support.
 */
#define EXT2_LIB_CURRENT_REV	EXT2_DYNAMIC_REV

#ifdef HAVE_SYS_TYPES_H
#include <sys/types.h>
#endif

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <errno.h>

#if EXT2_FLAT_INCLUDES
#include "e2_types.h"
#include "ext2_fs.h"
#include "ext3_extents.h"
#else
#include <ext2fs/ext2_types.h>
#include <ext2fs/ext2_fs.h>
#include <ext2fs/ext3_extents.h>
#endif /* EXT2_FLAT_INCLUDES */

#ifdef __CHECK_ENDIAN__
#define __bitwise __attribute__((bitwise))
#else
#define __bitwise
#endif

typedef __u32 __bitwise		ext2_ino_t;
typedef __u32 __bitwise		blk_t;
typedef __u64 __bitwise		blk64_t;
typedef __u32 __bitwise		dgrp_t;
typedef __u32 __bitwise		ext2_off_t;
typedef __u64 __bitwise		ext2_off64_t;
typedef __s64 __bitwise		e2_blkcnt_t;
typedef __u32 __bitwise		ext2_dirhash_t;

#if EXT2_FLAT_INCLUDES
#include "com_err.h"
#include "ext2_io.h"
#include "ext2_err.h"
#include "ext2_ext_attr.h"
#else
#include <et/com_err.h>
#include <ext2fs/ext2_io.h>
#include <ext2fs/ext2_err.h>
#include <ext2fs/ext2_ext_attr.h>
#endif

/*
 * Portability help for Microsoft Visual C++
 */
#ifdef _MSC_VER
#define EXT2_QSORT_TYPE int __cdecl
#else
#define EXT2_QSORT_TYPE int
#endif

typedef struct struct_ext2_filsys *ext2_filsys;

#define EXT2FS_MARK_ERROR 	0
#define EXT2FS_UNMARK_ERROR 	1
#define EXT2FS_TEST_ERROR	2

typedef struct ext2fs_struct_generic_bitmap *ext2fs_generic_bitmap;
typedef struct ext2fs_struct_generic_bitmap *ext2fs_inode_bitmap;
typedef struct ext2fs_struct_generic_bitmap *ext2fs_block_bitmap;

#define EXT2_FIRST_INODE(s)	EXT2_FIRST_INO(s)


/*
 * Badblocks list definitions
 */

typedef struct ext2_struct_u32_list *ext2_badblocks_list;
typedef struct ext2_struct_u32_iterate *ext2_badblocks_iterate;

typedef struct ext2_struct_u32_list *ext2_u32_list;
typedef struct ext2_struct_u32_iterate *ext2_u32_iterate;

/* old */
typedef struct ext2_struct_u32_list *badblocks_list;
typedef struct ext2_struct_u32_iterate *badblocks_iterate;

#define BADBLOCKS_FLAG_DIRTY	1

/*
 * ext2_dblist structure and abstractions (see dblist.c)
 */
struct ext2_db_entry2 {
	ext2_ino_t	ino;
	blk64_t	blk;
	e2_blkcnt_t	blockcnt;
};

/* Ye Olde 32-bit version */
struct ext2_db_entry {
	ext2_ino_t	ino;
	blk_t	blk;
	int	blockcnt;
};

typedef struct ext2_struct_dblist *ext2_dblist;

#define DBLIST_ABORT	1

/*
 * ext2_fileio definitions
 */

#define EXT2_FILE_WRITE		0x0001
#define EXT2_FILE_CREATE	0x0002

#define EXT2_FILE_MASK		0x00FF

#define EXT2_FILE_BUF_DIRTY	0x4000
#define EXT2_FILE_BUF_VALID	0x2000

typedef struct ext2_file *ext2_file_t;

#define EXT2_SEEK_SET	0
#define EXT2_SEEK_CUR	1
#define EXT2_SEEK_END	2

/*
 * Flags for the ext2_filsys structure and for ext2fs_open()
 */
#define EXT2_FLAG_RW			0x01
#define EXT2_FLAG_CHANGED		0x02
#define EXT2_FLAG_DIRTY			0x04
#define EXT2_FLAG_VALID			0x08
#define EXT2_FLAG_IB_DIRTY		0x10
#define EXT2_FLAG_BB_DIRTY		0x20
#define EXT2_FLAG_SWAP_BYTES		0x40
#define EXT2_FLAG_S