[PATCH 2/6] Make fclose seek input file to right offset (bug 12724)

[Joseph Myers]

On Wed, 15 Jan 2025, DJ Delorie wrote:

> Must undo any unused read-ahead in the main buffer.  IO_SEEKOFF doesn't
> check for the dual buffer state so only undoes the ungetc buffer.
> 
> Why can't this fix be in the IO_SEEKOFF logic?  Doesn't this imply that
> IO_SEEKOFF is faulty?

I don't know why the interface is designed the way it is, but all of 
ftell, ftello, ftello64, fgetpos and fgetpos64 work with the IO_SEEKOFF 
interface as it is (i.e., making this adjustment in the caller).

-- 
Joseph S. Myers
josmyers@redhat.com