ExpConvertSignatureName

NTSTATUS __stdcall ExpConvertSignatureName(
        UINT64 OutputType,
        _FILE_PATH *OutputPath,
        UINT64 *OutputPathLength,
        WCHAR *pDeviceName,
        WCHAR *pPathName,
        UINT64 DeviceNameCount){
  int v6; 
  NTSTATUS result; 
  UINT8 v10; 
  int v11; 
  int v12; 
  VOID **PoolWithTag; 
  wchar_t *v14; 
  int v15; 
  NTSTATUS v16; 
  NTSTATUS v17; 
  UINT64 *partitionStart; 
  UINT8 GPTpartition; 
  char longSignature[3]; 
  UINT64 partitionNumber; 
  char pDiskNumber[12]; 
  UINT64 pPartitionSize; 
  UINT64 pPartitionStart[2]; 
  _UNICODE_STRING ResultName; 
  _GUID diskSignature; 

  v6 = OutputType;
  LODWORD(partitionNumber) = 0;
  memset(pDiskNumber, 0, sizeof(pDiskNumber));
  pPartitionStart[1] = 0i64;
  pPartitionSize = 0i64;
  pPartitionStart[0] = 0i64;
  diskSignature = 0i64;
  GPTpartition = 0;
  longSignature[0] = 0;
  ResultName = 0i64;
  result = ExpParseSignatureName(
             pDeviceName,
             (unsigned int)DeviceNameCount,
             &diskSignature,
             &partitionNumber,
             (UINT64 *)&pDiskNumber[4],
             &pPartitionSize,
             &GPTpartition,
             (UINT8 *)longSignature);
  if( result >= 0 )
  {
    if( longSignature[0] == 1 && v6 == 4 )
      return ExpCreateOutputEFI(
               OutputPath,
               OutputPathLength,
               (_DISK_SIGNATURE_NEW *)&diskSignature,
               &partitionNumber,
               (UINT64 *)&pDiskNumber[4],
               &pPartitionSize,
               pPathName,
               GPTpartition);
    v10 = GPTpartition;
    v11 = 0;
    if( !GPTpartition )
      v11 = partitionNumber;
    HIDWORD(partitionNumber) = v11;
    result = ExpFindDiskSignature(
               (_DISK_SIGNATURE_NEW *)&diskSignature,
               (UINT64 *)((char *)&partitionNumber + 4),
               (UINT64 *)pDiskNumber,
               &pPartitionStart[1],
               pPartitionStart,
               GPTpartition);
    if( result >= 0 )
    {
      v12 = HIDWORD(partitionNumber);
      if( longSignature[0] == 1
        && ((_DWORD)partitionNumber != HIDWORD(partitionNumber)
         || *(_QWORD *)&pDiskNumber[4] != pPartitionStart[1]
         || pPartitionSize != pPartitionStart[0]) )
      {
        return -1073741811;
      }
      if( v6 == 4 )
        return ExpCreateOutputEFI(
                 OutputPath,
                 OutputPathLength,
                 (_DISK_SIGNATURE_NEW *)&diskSignature,
                 (UINT64 *)((char *)&partitionNumber + 4),
                 &pPartitionStart[1],
                 pPartitionStart,
                 pPathName,
                 v10);
      PoolWithTag = ExAllocatePoolWithTag(0x200ui64, 0x5Eui64, 1920364101i64);
      v14 = (wchar_t *)PoolWithTag;
      if( !PoolWithTag )
        return -1073741670;
      LODWORD(partitionStart) = v12;
      swprintf_s(
        (WCHAR *)PoolWithTag,
        0x2Fui64,
        (WCHAR *)L"\\Device\\Harddisk%lu\\Partition%lu",
        *(unsigned int *)pDiskNumber,
        partitionStart);
      v15 = ExpTranslateSymbolicLink(v14, &ResultName);
      ExFreePoolWithTag(v14, 0);
      if( v15 < 0 )
        return v15;
      if( v6 == 3 )
      {
        v16 = ExpCreateOutputNT(OutputPath, OutputPathLength, &ResultName, pPathName);
      }
      else
      {
        if( v6 != 1 )
        {
          v17 = -1073741811;
          goto LABEL_26;
        }
        v16 = ExpCreateOutputARC(OutputPath, OutputPathLength, &ResultName, pPathName);
      }
      v17 = v16;
LABEL_26:
      ExFreePoolWithTag(ResultName.Buffer, 0);
      return v17;
    }
  }
  return result;
}

Referenced by: