From: Corinna Vinschen <corinna-cygwin@cygwin.com>
To: Brian Inglis <Brian.Inglis@systematicsw.ab.ca>
Cc: cygwin@cygwin.com
Subject: Re: [ANNOUNCEMENT] attr 2.4.48-2
Date: Tue, 08 Jan 2019 16:21:00 -0000 [thread overview]
Message-ID: <20190108162140.GH593@calimero.vinschen.de> (raw)
In-Reply-To: <4f0abfa6-466d-66b6-25d4-073e97dadfc9@SystematicSw.ab.ca>
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On Jan 8 08:36, Brian Inglis wrote:
> On 2019-01-08 04:29, Corinna Vinschen wrote:
> > On Dec 20 23:22, Corinna Vinschen wrote:
> >> On Dec 20 09:03, Brian Inglis wrote:
> >>> On 2018-12-20 03:04, Corinna Vinschen wrote:
> >>>> The following packages have been uploaded to the Cygwin distribution:
> >>>> * attr-2.4.48-2
> >>>> * libattr-devel-2.4.48-2
> >>>> * libattr1-2.4.48-2
> >>> Does this release support listing Windows Alternate Data Streams, as the Linux
> >>> release does with Tuxera NTFS-3G?
> >> libattr only supports reading and writing EAs, it has no capabilities to
> >> read or write ADS. Ntfs-3g supports the streams_interface=windows
> >> option which allows to read ADS. This also adds the ntfs.streams.list
> >> EA to a file with named ADS. So attr/getfattr can only inspect the
> >> ntfs.streams.list EA because the NTFS-3G driver creates them on the fly
> >> when inspecting the file EAs.
> >> tl;dr: No, sorry. This could only work if Cygwin fakes the
> >> ntfs.streams.list EA per file just like the NTFS-3G driver.
> >> Patches welcome. Looks like a nice little project if you want to get
> >> your hands dirty. The functions to handle EAs are pretty
> >> self-sufficiently implemented in ntea.cc. A little loop about
> >> NtQueryInformationFile(FileStreamInformation) should do it.
> > Would that be something you'd like to work on, Brian?
>
> Not anything I really knew or cared about, except as a potential attack vector
> or Windows curiosity.
Too bad, but I guess the functionality isn't that important.
Corinna
--
Corinna Vinschen
Cygwin Maintainer
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prev parent reply other threads:[~2019-01-08 16:21 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-12-20 10:47 Corinna Vinschen
2018-12-20 22:22 ` Brian Inglis
2018-12-21 7:13 ` Corinna Vinschen
2019-01-08 11:29 ` Corinna Vinschen
2019-01-08 15:36 ` Brian Inglis
2019-01-08 16:21 ` Corinna Vinschen [this message]
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