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bug#3230: 23.0.93; Make dired-actual-switches safe local variable?
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From: |
Leo |
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Subject: |
bug#3230: 23.0.93; Make dired-actual-switches safe local variable? |
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Date: |
Thu, 24 Feb 2011 12:46:40 +0800 |
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User-agent: |
Gnus/5.13 (Gnus v5.13) Emacs/23.2.94 (Mac OS X 10.6.6) |
On 2011-02-24 10:08 +0800, Glenn Morris wrote:
> As it stands, it emphatically should NOT be marked safe. Example:
[...]
>
> Oh dear, arbitrary shell command executed with permissions of the user
> running Emacs.
Looks like a bug in the way dired-actual-switches is used. Should we
devise a function to check every switch in dired-actual-switches is
actual a switch?
(defun dired-actual-switches-p (switches)
(assert (stringp switches))
(mapc
(lambda (switch)
(assert (eq (aref switch 0) ?-)))
(split-string switches nil t)))
(put 'dired-actual-switches 'safe-local-variable 'dired-actual-switches-p)
Leo