ExpCreateOutputEFI

NTSTATUS __stdcall ExpCreateOutputEFI(
        VOID *OutputPath,
        UINT64 *OutputPathLength,
        _DISK_SIGNATURE_NEW *pDiskSignature,
        UINT64 *pPartitionNumber,
        UINT64 *pPartitionStart,
        UINT64 *pPartitionSize,
        WCHAR *pPathName,
        UINT8 GPTpartition){
  NTSTATUS v8; 
  unsigned __int64 v9; 
  UINT64 *v10; 
  int v13; 
  __int64 v15; 
  size_t v16; 
  NTSTATUS result; 
  UINT64 *v18; 
  unsigned __int64 BytesPerSector; 
  char v20; 
  char *v21; 
  UINT64 pDiskNumber; 
  UINT64 *v23; 
  _DISK_GEOMETRY DiskGeometry; 

  v8 = 0;
  v9 = 0i64;
  v10 = pPartitionNumber;
  v23 = pPartitionNumber;
  LODWORD(pDiskNumber) = 0;
  v13 = 54;
  if( pPathName )
  {
    v15 = -1i64;
    do
      ++v15;
    while( pPathName[v15] );
    v9 = (unsigned int)(2 * v15 + 2);
    v10 = pPartitionNumber;
    v13 = v9 + 58;
  }
  v16 = v13 + 4;
  if( *(_DWORD *)OutputPathLength < v16 )
  {
    v8 = -1073741789;
LABEL_15:
    *(_DWORD *)OutputPathLength = v16;
    return v8;
  }
  HIDWORD(pDiskNumber) = *(_DWORD *)v10;
  memset(&DiskGeometry, 0, sizeof(DiskGeometry));
  result = ExpFindDiskSignature(
             pDiskSignature,
             (UINT64 *)((char *)&pDiskNumber + 4),
             &pDiskNumber,
             0i64,
             0i64,
             GPTpartition);
  if( result >= 0 )
  {
    result = ExpGetDriveGeometry((unsigned int)pDiskNumber, &DiskGeometry);
    if( result >= 0 )
    {
      memset(OutputPath, 0i64, v16);
      v18 = v23;
      BytesPerSector = DiskGeometry.BytesPerSector;
      v20 = 1;
      *(_DWORD *)OutputPath = 1;
      *((_DWORD *)OutputPath + 1) = v16;
      *((_DWORD *)OutputPath + 2) = 4;
      v21 = (char *)OutputPath + 12;
      *(_DWORD *)v21 = 2752772;
      *((_DWORD *)v21 + 1) = *(_DWORD *)v18;
      *((_QWORD *)v21 + 1) = *pPartitionStart / BytesPerSector;
      *((_QWORD *)v21 + 2) = *pPartitionSize / BytesPerSector;
      if( GPTpartition == 1 )
      {
        v20 = 2;
        *(_OWORD *)(v21 + 24) = *(_OWORD *)&pDiskSignature->Signature;
      }
      else
      {
        *((_DISK_SIGNATURE_NEW *)v21 + 6) = (_DISK_SIGNATURE_NEW)pDiskSignature->Signature;
      }
      v21[40] = v20;
      v21[41] = v20;
      if( pPathName )
      {
        v21 += *((unsigned __int16 *)v21 + 1);
        *(_WORD *)v21 = 1028;
        *((_WORD *)v21 + 1) = v9 + 4;
        memmove(v21 + 4, pPathName, v9 - 2);
        *(_WORD *)&v21[2 * (v9 >> 1) + 2] = 0;
      }
      *(_DWORD *)&v21[*((unsigned __int16 *)v21 + 1)] = 327551;
      goto LABEL_15;
    }
  }
  return result;
}

Referenced by: