Ubuntu
gvfs package

gvfsd-sftp: unable to append to file when using low-level writing (echo)

Bug #517033 reported by potter000
24
This bug affects 4 people
Affects Status Importance Assigned to Milestone
gvfs
Fix Released
Medium
gvfs (Ubuntu)
Fix Released
Low
Unassigned

Bug Description

Binary package hint: gvfs

Configuration:
Ubuntu 9.10 Karmic
GNOME 2.28.0
gvfs 1.4.2 (tried building 1.5.1 - same result)

Steps to reproduce behaviour:
1. Mount a GVFS-SFTP share (via sftp://someserver)
2. Open terminal and cd to this share
3. Run commands:
user@host:~/.gvfs/sftp on someserver$ echo 100 > ./test
user@host:~/.gvfs/sftp on someserver$ echo 200 >> ./test
4. Expected result:
"200" appended to file contents
5. Real result - an error:
bash: echo: write error: Operation not supported

Additional information:
When using a text editor writing with fopen (e.g. Geany:
http://www.geany.org), all file contents is lost after saving the file. When using gedit (which seems to write via
g_file_set_contents), all is OK.
I have already filed a bug to the GNOME team (https://bugzilla.gnome.org/show_bug.cgi?id=608910) and a similar bug about gvfsd-smb (https://bugs.launchpad.net/ubuntu/+source/gvfs/+bug/517028).
This behaviour is not reproducible with Ubuntu Jaunty (GNOME 2.26, gvfs 1.2.2), all is OK there.

Revision history for this message
Pedro Villavicencio (pedro) wrote :

Thanks for the report, linking the upstream one and marking this as triaged.

Changed in gvfs (Ubuntu):
assignee: nobody → Ubuntu Desktop Bugs (desktop-bugs)
importance: Undecided → Low
status: New → Triaged
Bug Watch Updater (bug-watch-updater)
Changed in gvfs:
importance: Unknown → Medium
status: Unknown → New
Revision history for this message
Nathaniel W. Turner (nturner) wrote :

This bug causes permanent data loss with no warning.
How is it possibly "Importance: Low"?
If we can't SFTP with gvfs, it should be disabled. A feature that eats your data is worse than no feature at all.

tags: added: precise
Revision history for this message
Nathaniel W. Turner (nturner) wrote :

That should read "If we can't fix SFTP with gvfs ..."

Also:
When editing files with vim over gvfs/sftp, the whole file is lost upon saving.
When editing files with LibreOffice Calc over gvfs/sftp, the existing files gets corrupted such that LibreOffice can no longer open it.

This is with Ubuntu 12.04.

Bug Watch Updater (bug-watch-updater)
Changed in gvfs:
status: New → Fix Released
Revision history for this message
Sebastien Bacher (seb128) wrote :

The bug has been fixed in https://git.gnome.org/browse/gvfs/commit/?id=629c5cc2425945bcd39a6ca28f77ec391bf96950

Changed in gvfs (Ubuntu):
assignee: Ubuntu Desktop Bugs (desktop-bugs) → nobody
status: Triaged → Fix Committed
Revision history for this message
Launchpad Janitor (janitor) wrote :

This bug was fixed in the package gvfs - 1.19.2-0ubuntu1

---------------
gvfs (1.19.2-0ubuntu1) trusty; urgency=low

  * New upstream release.
    - smb: Fix "write file error: Success". (LP: #490176)
    - sftp: unable to append to file when using low-level writing
      (LP: #517033)
    - http: Fix uninitialized GError (LP: #1210852)
  * Adjust libsoup-gnome2.4-dev → libsoup2.4-dev build dependency, as per
    upstream configure.ac.
  * Drop 00upstream_mtp_test_updates.patch, included upstream.
 -- Martin Pitt <email address hidden> Mon, 25 Nov 2013 11:05:01 +0100

Changed in gvfs (Ubuntu):
status: Fix Committed → Fix Released
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