利用VC来读取MBR中的内容

Jimmy999

#include   <windows.h>
#include   <winioctl.h>
#include   <stdio.h>
#include   <iostream.h>
LPTSTR ReadMBR(BYTE*   pMBR,UINT nLen);
  LPTSTR ReadMBR(BYTE*   pMBR,   UINT   nLen)
  {
  LPTSTR errMSG="";
  HANDLE   hDevice;
  TCHAR   szDevicename[64];
  LPTSTR   szBuff;
  DISK_GEOMETRY   Geometry;
  BOOL   bRet;
  DWORD   bytes,bread,count;
  int   i;
  char   *drive   =   "0";
  wsprintf(szDevicename,"\\\\.\\PHYSICALDRIVE%c",*drive);

  hDevice   =   CreateFile(szDevicename,
             GENERIC_READ|GENERIC_WRITE,
       FILE_SHARE_READ|FILE_SHARE_WRITE,
                                   NULL,
                          OPEN_EXISTING,
                                      0,
          NULL);
                                    
  if(hDevice   ==   INVALID_HANDLE_VALUE)
  {
   errMSG="打开设备出错！";
   exit(1);
  }
  DeviceIoControl(hDevice,FSCTL_LOCK_VOLUME,   NULL,0,NULL,0,&count,NULL);
  DeviceIoControl(hDevice,IOCTL_DISK_GET_DRIVE_GEOMETRY,NULL,0,&Geometry,sizeof(DISK_GEOMETRY),&count,NULL);
  szBuff   =   (LPSTR)HeapAlloc(GetProcessHeap(),HEAP_ZERO_MEMORY,Geometry.BytesPerSector);
  if   (   szBuff   ==   NULL)
  {
   errMSG="分配内存出错！";
   exit(1);
  }
  bytes   =   512;
  bRet   =   ReadFile(hDevice,   szBuff,   bytes,   &bread,   NULL);
  if   (bRet==FALSE   ||   bread<512)
  {
   errMSG="读MBR出错！";
   exit(1);
  }
  for(int   n=0;n<512;n++){
  pMBR[n]   =   szBuff[n];
  }
  DeviceIoControl(hDevice,FSCTL_UNLOCK_VOLUME,   NULL,0,NULL,0,&count,NULL);
  CloseHandle(hDevice);
  return errMSG;
  }
  void main()
  {
   
   BYTE MBR[512];
   ReadMBR(MBR,512);
   LPTSTR path="c:\\mbr.dat";
   FILE *fp;
   if((fp=fopen(path,"wb+"))!=NULL)
   {
    fwrite(MBR,1,512,fp);
    fclose(fp);
    printf("已成功读取硬盘MBR,位于mbr.dat\n");
   }
   else
   {
    printf("建立文件出错！\n");
   }
  }

shaque

自己顶自己的，呵呵。。。

鸿

好书啊，谢谢楼主的无私奉献

^糖果^

这就成病毒了，晕晕

天煞

support you all

samfang9|1

wish u provide more materials

ytwwtp

good, okay

ff520

good, okay

a138s

shaque ??? 2009-1-25 21:24
??????,?????

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a138s

? ??? 2009-1-25 20:31
???,?????????

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