IopGetRelatedFileName

NTSTATUS __stdcall IopGetRelatedFileName(
        _FILE_OBJECT *FileObject,
        _UNICODE_STRING *NtFileName,
        UINT16 AdditionalAllocationBytes,
        UINT16 *DeviceNameLength){
  VOID **v4; 
  int v5; 
  VOID **v6; 
  size_t v7; 
  size_t v8; 
  VOID **PoolWithTag; 
  NTSTATUS NameStringMode; 
  NTSTATUS v13; 
  VOID **v14; 
  NTSTATUS FileInformation; 
  unsigned int v16; 
  VOID **v17; 
  UINT64 ReturnLength[2]; 

  v4 = 0i64;
  v5 = AdditionalAllocationBytes;
  v6 = 0i64;
  v7 = 256;
  LODWORD(ReturnLength[0]) = 0;
  v8 = 256;
  do
  {
    if( v6 )
    {
      ExFreePoolWithTag(v6, 0);
      v6 = 0i64;
    }
    if( v8 >= 0xFFFF )
    {
      v13 = -1073741562;
      goto LABEL_21;
    }
    PoolWithTag = ExAllocatePoolWithTag(1ui64, v8, 1665560393i64);
    v6 = PoolWithTag;
    if( !PoolWithTag )
      return -1073741670;
    memset(PoolWithTag, 0i64, v8);
    NameStringMode = ObQueryNameStringMode(
                       FileObject->DeviceObject,
                       (_OBJECT_NAME_INFORMATION *)v6,
                       v8,
                       ReturnLength,
                       0);
    v13 = NameStringMode;
    v8 = LODWORD(ReturnLength[0]) + 8;
    if( DeviceNameLength )
      *DeviceNameLength = *(_WORD *)v6;
  }
  while( NameStringMode == -2147483643 );
  if( NameStringMode >= 0 )
  {
    do
    {
      if( v4 )
      {
        ExFreePoolWithTag(v4, 0);
        v4 = 0i64;
      }
      if( v7 >= 0xFFFF )
        goto LABEL_26;
      v14 = ExAllocatePoolWithTag(1ui64, v7, 1665560393i64);
      v4 = v14;
      if( !v14 )
      {
        v13 = -1073741670;
        goto LABEL_21;
      }
      memset(v14, 0i64, v7);
      FileInformation = IopGetFileInformation(FileObject->RelatedFileObject, v7, FileNameInformation, v4, ReturnLength);
      v13 = FileInformation;
      v7 = *(_DWORD *)v4 + 8;
    }
    while( FileInformation == -2147483643 );
    if( FileInformation < 0 )
      goto LABEL_19;
    v16 = v5 + *(_DWORD *)v4 + *(unsigned __int16 *)v6;
    if( v16 >= 0xFFFF )
    {
LABEL_26:
      v13 = -1073741562;
      goto LABEL_19;
    }
    NtFileName->MaximumLength = v16;
    NtFileName->Length = v16 - v5;
    v17 = ExAllocatePoolWithTag(1ui64, v16, 1665560393i64);
    NtFileName->Buffer = (wchar_t *)v17;
    if( v17 )
    {
      memmove(v17, v6[1], *(unsigned __int16 *)v6);
      memmove((char *)NtFileName->Buffer + *(unsigned __int16 *)v6, (char *)v4 + 4, *(_DWORD *)v4);
    }
    else
    {
      v13 = -1073741670;
    }
LABEL_19:
    if( v4 )
      ExFreePoolWithTag(v4, 0);
  }
LABEL_21:
  if( v6 )
    ExFreePoolWithTag(v6, 0);
  return v13;
}

Referenced by: