Re: If not readdir() then what?

["H. Peter Anvin" <hpa@zytor.com>]

Theodore Tso wrote:
> It doesn't state explicitly that you can use the telldir cookie()
> after closing the directory stream using closedir() and then reopening
> it using opendir(), but given that it states that results are
> undefined after a rewinddir() --- which is much less violent than a
> closedir()/opendir(), I would definitely argue that an application
> programmer would be very ill-advised to rely on this working.
> 
> (Of course, I'd argue that an application programmer shouldn't use
> telldir/seekdir at all.....)
> 
> Ulrich, is it too late to insert a clarification that the telldir()
> cookie isn't guaranteed to be valid after closedir() *or* rewinddir()?

More fundamentally, the telldir cookie should never be valid when 
applied to a different DIR * (even one that refers to the same directory.)

	-hpa