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From: Milan Zamazal <pdm@zamazal.org>
To: Po Lu <luangruo@yahoo.com>
Cc: 64445@debbugs.gnu.org
Subject: bug#64445: 30.0.50; Android: Emacs cannot access /storage/emulated/0 although other apps can
Date: Wed, 05 Jul 2023 11:44:39 +0200	[thread overview]
Message-ID: <87h6qig0ag.fsf@zamazal.org> (raw)
In-Reply-To: <87lefuokkt.fsf@yahoo.com> (Po Lu's message of "Wed, 05 Jul 2023 15:59:14 +0800")

>>>>> "PL" == Po Lu <luangruo@yahoo.com> writes:

    PL> Milan Zamazal <pdm@zamazal.org> writes:
    >> W org.gnu.emacs: type=1400 audit(0.0:910): avc: denied { read }
    >> for comm=456D616373206D61696E2074687265 name="/" dev="dm-0" ino=2
    >> scontext=u:r:untrusted_app:s0:c157,c256,c512,c768
    >> tcontext=u:object_r:rootfs:s0 tclass=dir permissive=0

    PL> Right... how exactly are you trying to access /sdcard?  Through
    PL> Dired?

Yes, for example: ‘C-x C-f /sdcard/ RET’

    PL> If so, my guess is that ls-lisp is trying to stat the root file
    PL> system, which is forbidden by some versions of Android.  Would
    PL> you please enable debug-on-error (Options -> Enter Debugger on
    PL> Error) and display the backtrace from whatever file access
    PL> operation complains?

It's this one:

  directory-files-and-attributes("/sdcard/" nil nil t string)

I also tried what happens in ‘M-x shell‘ and for example ‘cat’ does the
same:

  $ cat /sdcard/existent-file
  cat: /sdcard/existent-file: Permission denied
  $ cat /sdcard/non-existent-file
  cat: /sdcard/non-existent-file: No such file or directory

This at least verifies that /sdcard points to the right location.

The same happens in Termux if and only if I remove the given storage
permission from it.  But in Emacs, it happens whether the permission is
given or not.





  reply	other threads:[~2023-07-05  9:44 UTC|newest]

Thread overview: 16+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-07-03 20:12 bug#64445: 30.0.50; Android: Emacs cannot access /storage/emulated/0 although other apps can Milan Zamazal
2023-07-04  0:49 ` Po Lu via Bug reports for GNU Emacs, the Swiss army knife of text editors
2023-07-04  8:05   ` Milan Zamazal
2023-07-04  8:30     ` Po Lu via Bug reports for GNU Emacs, the Swiss army knife of text editors
2023-07-04  8:50       ` Milan Zamazal
2023-07-05  0:42         ` Po Lu via Bug reports for GNU Emacs, the Swiss army knife of text editors
2023-07-05  7:41           ` Milan Zamazal
2023-07-05  7:59             ` Po Lu via Bug reports for GNU Emacs, the Swiss army knife of text editors
2023-07-05  9:44               ` Milan Zamazal [this message]
2023-07-05 12:21                 ` Po Lu via Bug reports for GNU Emacs, the Swiss army knife of text editors
2023-07-05 13:35                   ` Milan Zamazal
2023-07-06  0:24                     ` Po Lu via Bug reports for GNU Emacs, the Swiss army knife of text editors
2023-07-06  7:30                       ` Milan Zamazal
2023-08-18  4:13                         ` Po Lu via Bug reports for GNU Emacs, the Swiss army knife of text editors
2023-08-18 17:17                           ` Milan Zamazal
2023-08-19  0:13                             ` Po Lu via Bug reports for GNU Emacs, the Swiss army knife of text editors

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