using?System;
using?System.Collections.Generic;
using?System.Collections;
using?System.Text;
using?Microsoft.Win32.SafeHandles;
using?System.ComponentModel;
using?System.Windows.Forms;

namespace?ExtReader
{
????#region?目錄項結構
????internal?struct?DirEntry?
????{
????????public?byte?file_type;?
????????public?string?file_name;?
????????public?uint?file_inode_num;?
????}
????#endregion
????#region?ext分區類
????internal?unsafe?class?ExtPartition
????{
????????private?const?uint?Sector_Size?=?512;?
????????private?SafeFileHandle?hard_disk_handle?=?null;?//硬盤句柄
????????private?ulong?partition_start_sector?=?0;?//ext3分區開始扇區
????????private?uint?block_size?=?0;?//塊大小
????????private?ushort?inode_size?=?0;?//i節點大小
????????private?uint?inodes_per_group?=?0;//每塊組的i節點數
????????private?uint?group_desc_start?=?0;//0號塊組中組描述符表的開始塊
????????private?struct?inode?//i節點結構（只定義了有用的項）
????????{
????????????public?ulong?size;?//文件大小
????????????public?uint?block_ptr1;?//第一個直接指針
????????????public?uint?block_ptr2;
????????????public?uint?block_ptr3;
????????????public?uint?block_ptr4;
????????????public?uint?block_ptr5;
????????????public?uint?block_ptr6;
????????????public?uint?block_ptr7;
????????????public?uint?block_ptr8;
????????????public?uint?block_ptr9;
????????????public?uint?block_ptr10;
????????????public?uint?block_ptr11;
????????????public?uint?block_ptr12;
????????????public?uint?block_find_ptr;?//一級間接指針
????????????public?uint?block_sind_ptr;?//二級間接指針
????????????public?uint?block_tind_ptr;?//三級間接指針
????????}
????????Encoding?encoding?=?Encoding.UTF8;
????????private?uint?ntime?=?0;
????????internal?static?BackgroundWorker?run_back?=?new?BackgroundWorker（）;?//后臺線程
????????public?ExtPartition（）?{?}
????????public?ExtPartition（ulong?start_sectorSafeFileHandle?hd_disk_handle）
????????{
????????????byte*?tmp_buffer?=?stackalloc?byte[1024];
????????????uint?number_of_read?=?0;
????????????hard_disk_handle?=?hd_disk_handle;//獲得磁盤句柄
????????????HardDisk.set_pointer（start_sector?+?2hard_disk_handle）;
????????????FileAPI.ReadFile（hard_disk_handle?tmp_buffer?1024?&number_of_read?null）;?//讀超級塊
????????????partition_start_sector?=?start_sector;?
????????????block_size?=?（uint）Math.Pow（2?（double）*（uint*）（tmp_buffer?+?0x18））?*?1024;?
????????????inode_size?=?（ushort）（*（uint*）（tmp_buffer?+?0x4C）?!=?0???*（ushort*）（tmp_buffer?+?0x58）?:?128）;
????????????inodes_per_group?=?*（uint*）（tmp_buffer?+?0x28）;
????????????group_desc_start?=?（uint）（block_size!=1024???1?:?2）;
????????????run_back.WorkerReportsProgress?=?true;
????????????run_back.ProgressChanged?+=run_back_ProgressChanged;
????????????run_back.WorkerSupportsCancellation?=?true;
????????????run_back.RunWorkerCompleted?+=?run_back_RunWorkerCompleted;
????????}
????????private?unsafe?void?read_block（uint?block_num?byte*?dbuffer）//讀取塊
????????{
????????????uint?number_of_read?=?0;
????????????ulong?sector_pointer?=?partition_start_sector?+?block_n

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----

?????文件???????1894??2012-03-17?20:31??ExtReader\ExtReader\bin\Debug\ExtReader.application

?????文件??????28672??2012-03-17?20:31??ExtReader\ExtReader\bin\Debug\ExtReader.exe

?????文件???????3022??2012-03-17?20:31??ExtReader\ExtReader\bin\Debug\ExtReader.exe.manifest

?????文件??????93696??2012-03-17?20:31??ExtReader\ExtReader\bin\Debug\ExtReader.pdb

?????文件??????11600??2012-03-17?20:31??ExtReader\ExtReader\bin\Debug\ExtReader.vshost.exe

?????文件???????1894??2012-03-17?20:26??ExtReader\ExtReader\bin\Release\ExtReader.application

?????文件??????27136??2012-03-17?20:26??ExtReader\ExtReader\bin\Release\ExtReader.exe

?????文件???????3022??2012-03-17?20:26??ExtReader\ExtReader\bin\Release\ExtReader.exe.manifest

?????文件??????83456??2012-03-17?20:26??ExtReader\ExtReader\bin\Release\ExtReader.pdb

?????文件???????1894??2012-03-17?20:26??ExtReader\ExtReader\bin\Release\ExtReader.vshost.application

?????文件??????11600??2012-03-17?20:26??ExtReader\ExtReader\bin\Release\ExtReader.vshost.exe

?????文件???????3022??2012-03-17?20:26??ExtReader\ExtReader\bin\Release\ExtReader.vshost.exe.manifest

?????文件??????23863??2012-03-17?20:25??ExtReader\ExtReader\ExtPartition.cs

?????文件??????14805??2012-03-17?20:24??ExtReader\ExtReader\ExtReader.cs

?????文件???????6520??2012-03-02?14:05??ExtReader\ExtReader\ExtReader.csproj

?????文件????????452??2012-02-29?12:14??ExtReader\ExtReader\ExtReader.csproj.user

?????文件???????9363??2012-03-02?17:14??ExtReader\ExtReader\ExtReader.Designer.cs

?????文件???????1482??2012-01-01?21:14??ExtReader\ExtReader\ExtReader.idc

?????文件???????6798??2012-03-02?17:14??ExtReader\ExtReader\ExtReader.resx

?????文件???????7034??2012-03-17?20:24??ExtReader\ExtReader\FileAPI.cs

?????文件???????4010??2012-03-17?20:24??ExtReader\ExtReader\HardDisk.cs

?????文件???????4440??2011-12-25?18:40??ExtReader\ExtReader\obj\x86\Debug\DesignTimeResolveAssemblyReferences.cache

?????文件???????6500??2012-03-17?20:31??ExtReader\ExtReader\obj\x86\Debug\DesignTimeResolveAssemblyReferencesInput.cache

?????文件???????1894??2012-03-17?20:31??ExtReader\ExtReader\obj\x86\Debug\ExtReader.application

?????文件???????7174??2012-03-17?20:31??ExtReader\ExtReader\obj\x86\Debug\ExtReader.csproj.FileListAbsolute.txt

?????文件??????28672??2012-03-17?20:31??ExtReader\ExtReader\obj\x86\Debug\ExtReader.exe

?????文件???????3022??2012-03-17?20:31??ExtReader\ExtReader\obj\x86\Debug\ExtReader.exe.manifest

?????文件????????180??2012-03-17?20:31??ExtReader\ExtReader\obj\x86\Debug\ExtReader.ExtReader.resources

?????文件??????93696??2012-03-17?20:31??ExtReader\ExtReader\obj\x86\Debug\ExtReader.pdb

?????文件????????180??2012-03-17?20:31??ExtReader\ExtReader\obj\x86\Debug\ExtReader.Properties.Resources.resources

............此處省略43個文件信息