如何在windows下写程序读取MBR

534117403 2007-4-25 10:59 楼主

想在windows下，也就是保护模式下读取MBR。不知道windows提供了相应的库函数没有？

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沙发 mycmf

转
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#include
#include

const UINT uSectorSize  = 512 ;
const UINT uBegSector  = 0 ;
const UINT uSectorNum  = 1 ;

const UINT uReadSize  = uSectorSize * uSectorNum ;

BYTE bBuffer[uReadSize] = {0} ;
const char pDiskPath[] = "\\\\.\\PHYSICALDRIVE0" ;

void ShowByteInform ( PBYTE pBuf, UINT uSize )
{
  for ( UINT i = 1 ; i <= uSize; i++ )
  {
printf ( " %02X", pBuf[i-1] ) ;
if ( i % 16 == 0 )
   printf ( "\n" ) ;
else if ( i % 8 == 0 )
   printf ( " " ) ;
  }
}

int main()
{
  HANDLE hDisk ;
  __try {

hDisk = CreateFile ( pDiskPath, GENERIC_READ, \
   FILE_SHARE_READ|FILE_SHARE_WRITE, NULL, OPEN_EXISTING, 0, 0 ) ;
if ( hDisk == INVALID_HANDLE_VALUE )
{
   MessageBox ( 0, "磁盘打开错误!", 0, 0 ) ;
   return 0;
}

SetFilePointer ( hDisk, uBegSector * uSectorSize, 0, FILE_BEGIN ) ;
DWORD dwReadByte ;
ReadFile ( hDisk, (LPVOID)bBuffer, uReadSize, &dwReadByte, NULL ) ;
if ( dwReadByte == 0 )
{
   MessageBox ( 0, "磁盘读取错误!", 0, 0 ) ;
   return 0;
}

ShowByteInform ( bBuffer, uReadSize ) ;
  }
  __finally {
CloseHandle ( hDisk ) ;
  }
  return 0;
}

点赞 2007-4-26 21:30