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bug#66546: 30.0.50; save-buffer to write-protected file without backup f
From: |
Eli Zaretskii |
Subject: |
bug#66546: 30.0.50; save-buffer to write-protected file without backup fails |
Date: |
Thu, 19 Oct 2023 07:40:21 +0300 |
> From: Jens Schmidt <jschmidt4gnu@vodafonemail.de>
> Cc: 66546@debbugs.gnu.org
> Date: Wed, 18 Oct 2023 22:36:04 +0200
>
> Why exactly do we need that
>
> (set-file-extended-attributes
> buffer-file-name
> (file-extended-attributes buffer-file-name))
>
> incantation or the equivalent one
>
> (setq setmodes
> (list (file-modes buffer-file-name)
> (with-demoted-errors
> "Error getting extended attributes: %s"
> (file-extended-attributes buffer-file-name))
> buffer-file-name))
> (with-demoted-errors "Error setting attributes: %s"
> (set-file-extended-attributes buffer-file-name
> (nth 1 setmodes)))
>
> in function `basic-save-buffer-2'?
Because it was added there long ago, and because we have no reason to
believe it does any harm.
> In addition, I tried to trace back (this time hopefully correctly) the
> origin of this call to `set-file-extended-attributes' and reached this
> commit:
>
> 574c05e21947 Karel Klíc - Add SELinux support.
>
> Karel added as comment on this function:
>
> (basic-save-buffer-2): Set SELinux context of the newly created file,
> and return it.
>
> But we do not have a "newly created file" here, and, in my opinion, do
> not need to set an SELinux context/extended attributes on it.
When working with Emacs, we usually respect old code unless we have a
clear-cut case where it is wrong. Here, we don't. Me, I don't even
know enough about SELinux to discuss this intelligently. So let's
leave the code as it is, until we have a good reason to change it.
(And if and when we do decide to change it, we will need a good
understanding of what this will do to the several ACL frameworks we
currently support, before we know how to change it without introducing
subtle issues.)
- bug#66546: 30.0.50; save-buffer to write-protected file without backup fails, (continued)
- bug#66546: 30.0.50; save-buffer to write-protected file without backup fails, Eli Zaretskii, 2023/10/15
- bug#66546: 30.0.50; save-buffer to write-protected file without backup fails, Jens Schmidt, 2023/10/15
- bug#66546: 30.0.50; save-buffer to write-protected file without backup fails, Eli Zaretskii, 2023/10/15
- bug#66546: 30.0.50; save-buffer to write-protected file without backup fails, Jens Schmidt, 2023/10/15
- bug#66546: 30.0.50; save-buffer to write-protected file without backup fails, Eli Zaretskii, 2023/10/16
- bug#66546: 30.0.50; save-buffer to write-protected file without backup fails, Jens Schmidt, 2023/10/16
- bug#66546: 30.0.50; save-buffer to write-protected file without backup fails, Eli Zaretskii, 2023/10/17
- bug#66546: 30.0.50; save-buffer to write-protected file without backup fails, Jens Schmidt, 2023/10/17
- bug#66546: 30.0.50; save-buffer to write-protected file without backup fails, Eli Zaretskii, 2023/10/18
- bug#66546: 30.0.50; save-buffer to write-protected file without backup fails, Jens Schmidt, 2023/10/18
- bug#66546: 30.0.50; save-buffer to write-protected file without backup fails,
Eli Zaretskii <=
- bug#66546: 30.0.50; save-buffer to write-protected file without backup fails, Jens Schmidt, 2023/10/19
- bug#66546: 30.0.50; save-buffer to write-protected file without backup fails, Eli Zaretskii, 2023/10/20
- bug#66546: 30.0.50; save-buffer to write-protected file without backup fails, Jens Schmidt, 2023/10/21
- bug#66546: 30.0.50; save-buffer to write-protected file without backup fails, Eli Zaretskii, 2023/10/21
- bug#66546: 30.0.50; save-buffer to write-protected file without backup fails, Jens Schmidt, 2023/10/21
- bug#66546: 30.0.50; save-buffer to write-protected file without backup fails, Eli Zaretskii, 2023/10/22
- bug#66546: 30.0.50; save-buffer to write-protected file without backup fails, Jens Schmidt, 2023/10/22
- bug#66546: 30.0.50; save-buffer to write-protected file without backup fails, Eli Zaretskii, 2023/10/25
- bug#66546: 30.0.50; save-buffer to write-protected file without backup fails, Jens Schmidt, 2023/10/29
- bug#66546: 30.0.50; save-buffer to write-protected file without backup fails, Eli Zaretskii, 2023/10/29