Subject: bug#9574: closed (patch installed)

From: [email-masked] (GNU bug Tracking System)
Date: Sun, 04 Nov 2012 17:23:03 +0000

Your bug report

#9574: data-loss with --batch: ignored write failure

which was filed against the emacs package, has been closed.

The explanation is attached below, along with your original report.
If you require more details, please reply to [email-masked].

-- 
9574: http://debbugs.gnu.org/cgi/bugreport.cgi?bug=9574
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Subject: patch installed
From: Paul Eggert <[email-masked]>
To: [email-masked]
Date: Sun, 04 Nov 2012 09:19:07 -0800
List-Id: <debbugs-submit.debbugs.gnu.org>

I installed the patch for this into the Emacs trunk as bzr 110786
and am marking it as done.

Subject: data-loss with --batch: ignored write failure
From: Jim Meyering <[email-masked]>
To: [email-masked]
Date: Thu, 22 Sep 2011 16:39:04 +0200
List-Id: <debbugs-submit.debbugs.gnu.org>

This should diagnose the write failure and exit nonzero:

    emacs --version > /dev/full

Currently (latest from bzr trunk as of yesterday),
emacs exits 0 (successfully) and gives no diagnostic.
Obviously that doesn't matter too much, but this next one
can easily cause real trouble:

    $ emacs --batch --eval '(print "important")' > /dev/full && echo FAIL
    FAIL

I.e., the write fails and emacs fails to report that failure.

That means anything written via --batch to standard output may
be corrupted or incomplete, and emacs will still exit successfully.