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Subject: Re: UNC path for WebDAV with cd '\\webdavsrv AT SSL\path' or cd
 '\\webdavsrv AT 23456\path' will not work
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From: Takeshi Nishimura via Cygwin <cygwin AT cygwin DOT com>
Reply-To: Takeshi Nishimura <takeshi DOT nishimura DOT linux AT gmail DOT com>
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On Fri, Feb 21, 2025 at 11:28 AM Corinna Vinschen via Cygwin
<cygwin AT cygwin DOT com> wrote:
>
> On Feb 20 23:36, Martin Wege via Cygwin wrote:
> > On Thu, Feb 20, 2025 at 9:37 PM Corinna Vinschen via Cygwin
> > > And here's the problem.  It works fine for me on all shares, be it SMB,
> > > Samba, or NFS:
> > >
> > > https://cygwin.com/pipermail/cygwin/2025-February/257438.html
> > >
> > > > Maybe the hostname resolution in fhandler_netdrive::exists() failed?
> > >
> > > If so, it would be a problem on your side.
> > > Does `nslookup ember.data4.local' return a valid address?
> > >
> > > I just pushed a patch to print a debug statement in strace output
> > > to see what error code GetAddrInfoW returned.
> >
> > The code in https://cygwin.com/git/?p=newlib-cygwin.git;a=commitdiff;h=df307349a09e6f1ba75c78b1427dcea40f435e6e;hp=8a8fb570d7c5310a03a34b3dd6f9f8bb35ee9f40
> > is not going to work, because you only give ret as argument, but not
> > "name+2" as hostname.
>
> Yeah, it was obviously too late yesterday.  The patch was wrong twice.
>
> I pushed a patch for the patch which should show up in the just
> building cygwin-3.6.0-0.381.g8cc55d819bb7 test release.
>
> > And speaking of the "hostname", is this the \\hostname\path of an UNC?
> > In that case this will not work with WebDAV/SSL or WebDAV with custom
> > port, which might be \\webdavserver AT SSL\path or
> > \\webdavserver AT 23456\path, or \\webdavserver AT SSL@23456\path
> > You need to replace the L'@' with L'\0' before calling GetAddrInfoW(),
> > or it is not going to work with WebDAV
>
> I never saw that before.  Is that syntax really usable?
>
> I just spent half an hour trying to connect to a nextcloud instance
> using this syntax, but to no avail.  https://... works.
>
> I have a local patch removing this at-sign, but I would first like
> to hear if this is really usable and used.

The BeeGFS Windows client uses that syntax to support more than one
metadata server config per host, i.e.
\\beegfs DOT example DOT com AT 14\beegfs\dir1\dir2....
-- 
Internationalization&localization dev / 大阪大学
Takeshi Nishimura <takeshi DOT nishimura DOT linux AT gmail DOT com>

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