On Tue, Jul 21, 2020 at 07:48:29AM -0600, Todd C. Miller wrote:
> As you've discovered, not all file systems support the d_type
> optimization.  The situation is even worse on other systems.  I
> wouldn't call this a hack--it's simply what you have to do when the
> file system doesn't support d_type.  There really isn't another
> option.
> 
> I don't think this approach is any racier than relying on d_type.
> There will always be TOCTOU races unless you open the file first
> and use fstat().  That's true whether you get the info from readdir(2)
> or lstat(2).
> 
> What you have there looks fine to me, though I would remove the
> comment about it being racey.
> 
>  - todd
> 

Fair enough. I'll go ahead with this change then and tweak the comments
as you suggest. Thank you for the insight :)