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Date:	Tue, 4 May 2021 22:52:33 +0300
Message-ID:	<CAGHpTBJHXXE6YUXjEX8wtE9wnX_wCz5HhrDKsJ_Dz2z1_f4LuQ@mail.gmail.com>
Subject:	Re: realpath issue with native[strict] symlinks
To:	corinna-cygwin AT cygwin DOT com, cygwin AT cygwin DOT com
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From:	Orgad Shaneh via Cygwin <cygwin AT cygwin DOT com>
Reply-To:	Orgad Shaneh <orgads AT gmail DOT com>
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On Tue, Apr 27, 2021 at 8:44 AM Orgad Shaneh <orgads AT gmail DOT com> wrote:
>
> On Apr 19 12:58, Corinna Vinschen via Cygwin wrote:
> > On Apr 18 10:59, Orgad Shaneh via Cygwin wrote:
>
> > I was going to write:
> >
> >   Nothing we can do about without re-implementing Cygwin's path handling
> >   from scratch.  For historical reasons, POSIX paths are evaluated in a
> >   non-POSIXy manner from right to left.  If the resulting path is an
> >   existing path, the assumption is that no inner path component is a
> >   symlink.  That's true as long as Windows didn't support
> >   symlinks/junctions and Cygwin didn't support them.
> >
> > But now I'm writing this:
> >
> >   Probably I have a workaround for this problem.  I added a certain test
> >   to the function checking the outer path component, so the checks for
> >   path validity don't stop at the outer path component, just because
> >   it's a valid Windows path.
> >
> > I pushed the patch and uploaded new developer snapshots to
> > https://cygwin.com/snapshots/
> >
> > Please give them a try.
>
> Tried now, and it works for me. Thanks a lot!
>
> - Orgad


Hi Corinna,

This change breaks access to subst drives. Reported on MSYS2:
https://github.com/msys2/msys2-runtime/pull/38#issuecomment-832160980

Can you please have a look?

Please CC me when you reply. I'm not on the mailing list.

Thank you,
- Orgad

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