public inbox for cygwin-apps@cygwin.com
 help / color / mirror / Atom feed
From: Jon Turney <jon.turney@dronecode.org.uk>
To: "cygwin-apps@cygwin.com" <cygwin-apps@cygwin.com>,
	Christian Franke <Christian.Franke@t-online.de>
Subject: Re: [PATCH setup] Add new option --chown-admin
Date: Tue, 29 Nov 2022 21:37:34 +0000	[thread overview]
Message-ID: <d8d3e4a7-288f-247c-c797-0db4f9eef209@dronecode.org.uk> (raw)
In-Reply-To: <064f7b6b-ff09-8544-f444-63e92eea1b4d@t-online.de>

On 04/10/2022 13:05, Christian Franke wrote:
> Jon Turney wrote:
>>
>> Corinna had some concerns about making the owner a group, rather than 
>> a user, which I believe historically caused some difficulties in 
>> Cygwin, so I think I'll need to understand that better before making a 
>> decision about this change.
> 
> I see. Do you have any info about these difficulties?
> Are these still relevant? If yes, let's forget this patch.

After a bit of research, I think the issue was that if you make user 
owner and group owner map onto the same Windows SID, certain unix access 
permissions cannot be reversibly mapped onto a Windows ACL.

(e.g you can't set the mode to 0600, because when you read that back, 
it's mode is 0660. Some programs e.g ssh check for and require 0600 
permission on some files)

This perhaps isn't terribly relevant to files created by setup.


  reply	other threads:[~2022-11-29 21:37 UTC|newest]

Thread overview: 18+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-07-06  7:14 Christian Franke
2022-07-06 13:53 ` Jon Turney
2022-07-06 16:34   ` Christian Franke
2022-07-07 11:38     ` Jon Turney
2022-07-07 14:45       ` Christian Franke
2022-07-07 14:59         ` Christian Franke
     [not found]         ` <d7d51d1c-f6d5-2fac-3e6d-86714efd0734@dronecode.org.uk>
     [not found]           ` <32655945-5075-0823-2a1d-b72caa4b7791@t-online.de>
2022-07-12 12:50             ` Jon Turney
2022-08-23 15:20               ` Jon Turney
2022-08-23 17:27                 ` Christian Franke
2022-08-26 13:27                   ` Jon Turney
2022-08-26 15:02                     ` Christian Franke
2022-08-28 17:33                       ` Christian Franke
2022-09-02 13:56                         ` Jon Turney
2022-09-02 15:17                           ` Christian Franke
2022-09-15 17:45                             ` Jon Turney
2022-10-04 12:05                               ` Christian Franke
2022-11-29 21:37                                 ` Jon Turney [this message]
2022-11-30 18:49                                   ` Christian Franke

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=d8d3e4a7-288f-247c-c797-0db4f9eef209@dronecode.org.uk \
    --to=jon.turney@dronecode.org.uk \
    --cc=Christian.Franke@t-online.de \
    --cc=cygwin-apps@cygwin.com \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for read-only IMAP folder(s) and NNTP newsgroup(s).