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From: Stefan Monnier <monnier@iro.umontreal.ca>
To: emacs-devel@gnu.org
Subject: Re: Remote temporary directory
Date: Fri, 29 Jul 2016 17:02:19 -0400	[thread overview]
Message-ID: <jwvk2g4jh5l.fsf-monnier+gmane.emacs.devel@gnu.org> (raw)
In-Reply-To: 87oa5g42v5.fsf@gmx.de

>> `make-remote-temp-file' comes to mind, but this would imply that the
>> result resides on a remote host. It should still behave like
>> `make-temp-file' when `default-directory' is local, and even in case it
>> calls a file name handler, that handler must not support remote files.
>> Maybe you have a better name.
> I'm  a little bit undecided. Shall I try it this way? A better name?

Maybe a new `make-nearby-temp-file` would work, where Emacs would try to
create the temp file "as close as possible" to some target directory.

This could also be used for things like "save into a temp file and then
rename that file to the actual destination".

This said, there are some non-trivial security issues at stake here:
make-temp-file should usually only be used in directories which are
either only writable by "trusted" users (i.e. only by the current user),
or which have the magical "sticky" bit set.  So using just any writable
"nearby" directory is generally unsafe.


        Stefan




  reply	other threads:[~2016-07-29 21:02 UTC|newest]

Thread overview: 13+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <acdfa136-1d37-a920-b572-fdd0f6e11257@gmail.com>
     [not found] ` <837fch1vmw.fsf@gnu.org>
     [not found]   ` <8536522f-fa3f-9fe0-63c0-262b8191b4a3@gmail.com>
     [not found]     ` <83h9bdttxi.fsf@gnu.org>
     [not found]       ` <87lh0ons06.fsf@gmx.de>
     [not found]         ` <83r3afst6v.fsf@gnu.org>
2016-07-27  9:57           ` Remote temporary directory (was: bug#23076: 24.5; vc-git: add a new variable for log output coding system) Michael Albinus
2016-07-27 11:42             ` Remote temporary directory Nikolay Kudryavtsev
2016-07-27 12:27               ` Michael Albinus
2016-07-27 16:09             ` Remote temporary directory (was: bug#23076: 24.5; vc-git: add a new variable for log output coding system) Eli Zaretskii
2016-07-27 16:56               ` Remote temporary directory Michael Albinus
2016-07-27 17:37                 ` Eli Zaretskii
2016-07-27 18:14                   ` Michael Albinus
2016-07-29 20:15                     ` Michael Albinus
2016-07-29 21:02                       ` Stefan Monnier [this message]
2016-07-31 11:26                         ` Michael Albinus
2016-07-31 14:19                           ` Stefan Monnier
2016-07-31 14:45                             ` Michael Albinus
2016-07-30  6:58                       ` Eli Zaretskii

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