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- //-----------------------------------------------------------------------------
- //-----------------------------------------------------------------------------
- // FAT32 File IO Library
- // V2.0
- // Rob Riglar
- // Copyright 2003 - 2007
- //
- // Email: rob@robriglar.com
- //
- //-----------------------------------------------------------------------------
- //
- // This file is part of FAT32 File IO Library.
- //
- // FAT32 File IO Library 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.
- //
- // FAT32 File IO Library 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 FAT32 File IO Library; if not, write to the Free Software
- // Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- //-----------------------------------------------------------------------------
- //-----------------------------------------------------------------------------
- #include "..\define.h"
- #include
- #include
- #include
- #include
- // Warning: If you get the wrong physical drive ID you could erase your main hard disk!!
- #ifdef SOURCE_WINDOWS_PHYSICAL_DRIVE
- // File Functions
- static __int64 DiskFileSeek(HANDLE hf, __int64 distance, DWORD MoveMethod);
- //---------------------------------------------------------------------
- // ReadSector: Read disk sector (512 bytes) in Windows
- //---------------------------------------------------------------------
- extern "C" BOOL ReadDiskSector(int drive, DWORD startinglogicalsector, int numberofsectors, BYTE *buffer)
- {
- HANDLE hDevice;
- DWORD bytesread;
- // Creating a handle to drive a: using CreateFile () function ..
- char _devicename[] = "\\\\.\\PhysicalDrive0";
- _devicename[17] += drive;
- hDevice = CreateFile(_devicename, // drive to open
- GENERIC_READ, // access type
- FILE_SHARE_READ | // share mode
- FILE_SHARE_WRITE,
- NULL, // default security attributes
- OPEN_EXISTING, // disposition
- 0, // file attributes
- NULL); // do not copy file attributes
- if (hDevice == INVALID_HANDLE_VALUE)
- return FALSE;
- DiskFileSeek(hDevice, (startinglogicalsector),FILE_BEGIN);
- if (!ReadFile (hDevice, buffer, 512*numberofsectors, &bytesread, NULL) )
- return FALSE;
- CloseHandle(hDevice);
- return TRUE;
- }
- //---------------------------------------------------------------------
- // WriteDiskSector: Write disk sector (512 bytes) in Windows
- //---------------------------------------------------------------------
- extern "C" BOOL WriteDiskSector(int drive, DWORD startinglogicalsector, int numberofsectors, BYTE *buffer)
- {
- HANDLE hDevice;
- DWORD byteswritten;
- // Creating a handle to drive a: using CreateFile () function ..
- char _devicename[] = "\\\\.\\PhysicalDrive0";
- _devicename[17] += drive;
- hDevice = CreateFile(_devicename, // drive to open
- GENERIC_READ|GENERIC_WRITE, // access type
- FILE_SHARE_READ | // share mode
- FILE_SHARE_WRITE,
- NULL, // default security attributes
- OPEN_EXISTING, // disposition
- 0, // file attributes
- NULL); // do not copy file attributes
- if (hDevice == INVALID_HANDLE_VALUE)
- return FALSE;
- DiskFileSeek(hDevice, (startinglogicalsector),FILE_BEGIN);
- if (!WriteFile (hDevice, buffer, 512*numberofsectors, &byteswritten, NULL) )
- return FALSE;
- CloseHandle(hDevice);
- return TRUE;
- }
- //---------------------------------------------------------------------
- // DiskFileSeek: Allow seeking through large files (a disk opened as a
- // file).
- //---------------------------------------------------------------------
- static __int64 DiskFileSeek(HANDLE hf,__int64 distance, DWORD MoveMethod)
- {
- __int64 seekDistance=0;
- seekDistance = distance*512;
- LARGE_INTEGER li;
- li.QuadPart = seekDistance;
- li.LowPart = SetFilePointer (hf, li.LowPart, &li.HighPart, MoveMethod);
- return li.QuadPart;
- }
- #endif
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