From: Jim Porter <jporterbugs@gmail.com>
To: 51327@debbugs.gnu.org
Cc: eggert@cs.ucla.edu
Subject: bug#51327: 28.0.60; emacsclient warns about XDG_RUNTIME_DIR when starting daemon on-demand
Date: Thu, 21 Oct 2021 21:58:00 -0700 [thread overview]
Message-ID: <ba5ee273-9d0f-7baf-ef2e-d0b005f29ed0@gmail.com> (raw)
Normally, when running `emacsclient --alternate-editor=""' with no Emacs
server running, it will run `emacs --daemon' and then connect to it. In
Emacs 28, it will also issue the following warning:
Should XDG_RUNTIME_DIR='/run/user/1000' be in the environment?
(Be careful: XDG_RUNTIME_DIR is security-related.)
However, XDG_RUNTIME_DIR *is* set in my environment, so it shouldn't be
warning me about it.
I believe this is due to the fix for bug#33847 (see commit
007744dd0404d6febca88b00c22981cc630fb8c0). That bug asked for
emacsclient to look in both XDG_RUNTIME_DIR and TMPDIR to find the
server socket, in order to accommodate the case where `emacs --daemon'
is started when XDG_RUNTIME_DIR is unset, but *is* set when running
`emacsclient'.
That works for the issue described in bug#33847, but for users with
XDG_RUNTIME_DIR set who want `emacs --daemon' to start on demand, the
change means that emacsclient will look in TMPDIR to find a server
socket, record that attempt, and then warn about it before finally going
ahead and starting `emacs --daemon'.
I'm not an expert on XDG_RUNTIME_DIR, but my understanding is that this
was added to improve security over using TMPDIR. However, as far as I
can tell, the fix in bug#33847 partially undoes the security improvement
for users who want to start `emacs --daemon' on demand.
I'm not sure what the fix here is, at least not while ensuring that both
this case and the case in bug#33847 "just work" without setting some
option...
(The original bug#33847 is rather long, and I see that similar concerns
were raised there, so I hope I've summarized this accurately and I'm not
just misunderstanding what this code is doing.)
next reply other threads:[~2021-10-22 4:58 UTC|newest]
Thread overview: 35+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-10-22 4:58 Jim Porter [this message]
2021-10-30 19:37 ` bug#51327: 28.0.60; emacsclient warns about XDG_RUNTIME_DIR when starting daemon on-demand Jim Porter
2021-10-30 22:33 ` Paul Eggert
2021-12-07 11:26 ` Stefan Kangas
2021-12-07 14:27 ` Eli Zaretskii
2021-12-07 14:58 ` Stefan Kangas
2021-12-07 19:03 ` Paul Eggert
2021-12-08 6:57 ` Jim Porter
2021-12-08 19:06 ` Paul Eggert
2021-12-08 19:16 ` Eli Zaretskii
2021-12-08 20:23 ` Stefan Kangas
2021-12-08 21:56 ` Ulrich Mueller
2021-12-08 22:56 ` Jim Porter
2021-12-08 23:44 ` Paul Eggert
2021-12-09 0:19 ` Ulrich Mueller
2021-12-09 7:32 ` Eli Zaretskii
2021-12-09 7:44 ` Ulrich Mueller
2021-12-09 17:12 ` Paul Eggert
2021-12-09 18:34 ` Eli Zaretskii
2021-12-09 19:45 ` Jim Porter
2021-12-09 19:48 ` Paul Eggert
2021-12-09 19:57 ` Eli Zaretskii
2021-12-09 20:04 ` Paul Eggert
2022-09-10 5:01 ` Lars Ingebrigtsen
2022-09-10 5:53 ` Paul Eggert via Bug reports for GNU Emacs, the Swiss army knife of text editors
2021-12-09 4:10 ` Richard Stallman
2021-11-05 10:38 ` bug#51327: 28.0.60; emacsclient warns about XDG_RUNTIME_DIR when starting daemon on demand Ulrich Mueller
2021-11-05 17:54 ` Jim Porter
2021-11-05 18:05 ` Ulrich Mueller
2021-11-05 18:38 ` Jim Porter
2021-11-05 19:02 ` Ulrich Mueller
2021-11-11 13:04 ` Ulrich Mueller
2021-11-11 17:06 ` Jim Porter
2021-11-12 2:21 ` Paul Eggert
2021-12-07 14:58 ` Stefan Kangas
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