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Date: Sun, 12 Apr 2015 16:25:21 +0200
From: Corinna Vinschen <corinna-cygwin@cygwin.com>
To: cygwin@cygwin.com
Subject: Re: [TESTERS needed] New POSIX permission handling
Message-ID: <20150412142521.GR7343@calimero.vinschen.de>
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References: <20150410100703.GA4401@calimero.vinschen.de> <1428772308972-117455.post@n5.nabble.com> <20150412083532.GM7343@calimero.vinschen.de> <1428844894032-117479.post@n5.nabble.com>
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On Apr 12 06:21, =C4=B0smail D=C3=B6nmez wrote:
> Hi,
>=20
>=20
> Corinna Vinschen-2 wrote
> > On Apr 11 10:11, donmez wrote:
> >> Hi,
> >>=20
> >>=20
> >> Corinna Vinschen-2 wrote
> >> > Hi folks,
> >> >=20
> >> >=20
> >> > I just applied a patch I'm working on for quite some time now.  As I
> >> > outlined before on this list, the POSIX permission handling has aged
> >> > considerably and, for historical reasons, did things differently
> >> > dependent on the calling function.  I took the time to reimplement t=
he
> >> > core functionality to handle all ACLs as strictly following POSIX ACL
> >> > rules as possible.
> >>=20
> >> I tested the updated package and at least quilt and mutt seems to brok=
en
> >> by
> >> the permission changes:
> >>=20
> >> [~]> quilt new foo
> >> cat: /tmp/quilt.mwTVWM: Permission denied
> >> Patch patches/foo is now on top
> >>=20
> >> And running mutt results in:
> >>=20
> >> "Error creating temporary file /tmp/mutt-...."
> >>=20
> >> Rolling back to an older snapshot fixes the problem.
> >=20
> > Thanks, but...=20
> >=20
> > No offense, but this is not overly helpful.  The problem is to learn
> > *why* this happens and how to fix it.  For that I'd need to know what
> > your permissions on /tmp look like (ls -l, getfacl, icacls).  Creating
> > files in my /tmp (having an old-style ACL) with the following
> > permissions works as desired for me:
>=20
> Hopefully this will shed some more light:

It does, thank you.  The problem is the dreaded "owner =3D=3D group" problem
introduced with these weird Microsoft accounts.  I completely forgot
about this while implementing the new code.  It's pretty tricky to get
the Windows ACL right for this.  Additionally the ACLs already created
by setup are... borderline correct only.  Back to the drawing board...


Thanks,
Corinna

--=20
Corinna Vinschen                  Please, send mails regarding Cygwin to
Cygwin Maintainer                 cygwin AT cygwin DOT com
Red Hat

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