RtlpGetNtProductTypeFromRegistry

INT64 __stdcall RtlpGetNtProductTypeFromRegistry(PNT_PRODUCT_TYPE NtProductType){
  NTSTATUS v2; 
  ULONG ResultLength; 
  void *KeyHandle; 
  UNICODE_STRING String1; 
  __int64 v7[2]; 
  struct _UNICODE_STRING ValueName; 
  UNICODE_STRING String2; 
  UNICODE_STRING v10; 
  UNICODE_STRING v11; 
  struct _OBJECT_ATTRIBUTES ObjectAttributes; 
  char KeyValueInformation[4]; 
  int v14; 
  unsigned int v15; 
  int v16; 
  *(&ObjectAttributes.Length + 1) = 0;
  memset(&ObjectAttributes.Attributes + 1, 0, 20);
  ResultLength = 0;
  *(_DWORD *)(&String1.MaximumLength + 1) = 0;
  KeyHandle = 0i64;
  ObjectAttributes.RootDirectory = 0i64;
  v7[1] = (__int64)L"\\Registry\\Machine\\System\\CurrentControlSet\\Control\\ProductOptions";
  ValueName.Buffer = L"ProductType";
  v10.Buffer = L"LanmanNt";
  v11.Buffer = L"ServerNt";
  String2.Buffer = L"WinNt";
  ObjectAttributes.ObjectName = (_UNICODE_STRING *)v7;
  v7[0] = 8650882i64;
  *(_QWORD *)&ValueName.Length = 1572886i64;
  *(_QWORD *)&v10.Length = 1179664i64;
  *(_QWORD *)&v11.Length = 1179664i64;
  *(_QWORD *)&String2.Length = 786442i64;
  ObjectAttributes.Length = 48;
  ObjectAttributes.Attributes = 576;
  v2 = ZwOpenKey(&KeyHandle, 1u, &ObjectAttributes);
  if( v2 >= 0 )
  {
    v2 = ZwQueryValueKey(KeyHandle, &ValueName, KeyValuePartialInformation, KeyValueInformation, 0x24u, &ResultLength);
    if( v2 >= 0 )
    {
      if( v14 == 1 && v15 >= 2 )
      {
        String1.MaximumLength = v15;
        String1.Buffer = (wchar_t *)&v16;
        String1.Length = v15 - 2;
        if( RtlEqualUnicodeString(&String1, &String2, 1u) )
        {
          *NtProductType = NtProductWinNt;
          goto LABEL_9;
        }
        if( RtlEqualUnicodeString(&String1, &v10, 1u) )
        {
          *NtProductType = NtProductLanManNt;
          goto LABEL_9;
        }
        if( RtlEqualUnicodeString(&String1, &v11, 1u) )
        {
          *NtProductType = NtProductServer;
          goto LABEL_9;
        }
      }
      v2 = -1073739509;
    }
  }
LABEL_9:
  if( KeyHandle )
    ZwClose(KeyHandle);
  return(unsigned int)v2;
}

Referenced by: