WSL symbolic links

Corinna Vinschen corinna-cygwin@cygwin.com
Mon Mar 30 08:46:41 GMT 2020


On Mar 27 21:32, Brian Inglis wrote:
> On 2020-03-27 12:53, Corinna Vinschen wrote:
> > On Mar 27 11:58, Brian Inglis wrote:
> >> On 2020-03-26 14:05, Corinna Vinschen wrote:
> >>> On Mar 26 13:12, Brian Inglis wrote:
> >>>> They should be WSL or Windows mklink (soft) links, and the reason why mklink was
> >>>> allowed unelevated in Windows 10 with Developer mode.
> >>>> In an *elevated* shell:
> >>>> $ ls -dln u
> >>>> -rw-r----- 1 4294967295 4294967295 0 Nov  9 06:09 u
> >>>                ^^^^^^^^^^^^^^^^^^^^^
> >>> This is unknown user, unknown group, which means, the Windows
> >>> function LookupAccountSid() probably returned a domain name which
> >>> is unknown (neither account domain, nor primary, nor trusted domain).
> >>>
> >>> An strace of `ls -l u' may be helpful...
> >>
> >> Attached with startup environment, locale, and message setup cut (reduced by
> >> 100KB), and rest sanitized as below. Could DM/PM original on request.
> > 
> > Thanks!  This should already be fixed in the latest developer snapshot
> > after I was finally able to install WSL myself.  See my reply to Thomas
> > in https://sourceware.org/pipermail/cygwin/2020-March/244211.html
> > 
> > All the effects are a result of not opening the reparse point as reparse
> > point, as weird as it sounds at first :)
> 
> Would you consider that test program a reasonable base for something I have
> wished for a while: a program that would classify a file name as a (regular)
> hard link, a Windows directory or file link, a junction, a Windows shortcut, a
> Cygwin symlink, a Unix/WSL symlink, a URL link, and/or tell me where it links to
> etc. Thinking of hacking that plus maybe bits of file, cygpath, readshortcut,
> readlink, lsattr together to display otherwise awkward to access attributes and
> properties.

Do you actually talk about my test source I sent in this thread?
It's just a very bare printer for the content of a reparse point
and has the flexibility factor of a hammer for electronic repairs.

If you like to use it as a base for something you outline above,
feel free.  The source can go into public domain, for all it's
worth.


Corinna

-- 
Corinna Vinschen
Cygwin Maintainer
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