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Date: Fri, 21 Feb 2025 22:04:44 +0100
Message-ID: <CALWcw=E4kcJ+UbsRkqkFpgRx734H33NhJhspuVH2KgDzV4jL3g@mail.gmail.com>
Subject: Re: UNC path for WebDAV with cd '\\webdavsrv@SSL\path' or cd
 '\\webdavsrv@23456\path' will not work
To: cygwin@cygwin.com
From: Takeshi Nishimura via Cygwin <cygwin@cygwin.com>
Reply-To: Takeshi Nishimura <takeshi.nishimura.linux@gmail.com>
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On Fri, Feb 21, 2025 at 11:28 AM Corinna Vinschen via Cygwin
<cygwin@cygwin.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@SSL\path or
> > \\webdavserver@23456\path, or \\webdavserver@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.example.com@14\beegfs\dir1\dir2....
-- 
Internationalization&localization dev / 大阪大学
Takeshi Nishimura <takeshi.nishimura.linux@gmail.com>

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