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From: | Jason Rumney |
Subject: | bug#865: 23.0.60; The directory is unsafe today |
Date: | Thu, 04 Sep 2008 11:30:57 +0800 |
User-agent: | Thunderbird 2.0.0.16 (Windows/20080708) |
Eli Zaretskii wrote:
Date: Thu, 04 Sep 2008 07:44:49 +0800 From: Jason Rumney <jasonr@gnu.org> CC: 865@emacsbugs.donarmstrong.com, emacs-pretest-bug@gnu.orgI am trying to find a solution that will work without Lisp coders needing to be aware of the strange situation on Windows that files can be owned by a group.(or (eql (nth 2 attrs) (user-uid)) (and (eq system-type 'windows-nt) (eql (nth 2 attrs) (user-gid)))I think the only good solution in that venue would be to have a new primitive for such tests, and implement it on Windows so that it will cater to this special case. Any other solution is likely to lie about the file's security attributes.
We are telling a lie already by attempting to map ACLs to POSIX ownership. If we are going to attempt this, then it is better to tell a lie that fits with the expectations of POSIX (ie that owners of files are individual users). A different API that tells the full story might be a good idea, but any new API is only going to be used by future developers who know about the API, it cannot fix problems in existing Lisp code that might make the same assumptions as server.el.
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