Bug 957797 - tar-out and base64-out quoting error
tar-out and base64-out quoting error
Product: Fedora
Classification: Fedora
Component: libguestfs (Show other bugs)
Unspecified Unspecified
unspecified Severity unspecified
: ---
: ---
Assigned To: Richard W.M. Jones
Fedora Extras Quality Assurance
Depends On: 957772
  Show dependency treegraph
Reported: 2013-04-29 10:33 EDT by Richard W.M. Jones
Modified: 2013-05-21 23:18 EDT (History)
4 users (show)

See Also:
Fixed In Version: libguestfs-1.20.6-2.fc18
Doc Type: Bug Fix
Doc Text:
Story Points: ---
Clone Of: 957772
Last Closed: 2013-05-21 23:18:27 EDT
Type: Bug
Regression: ---
Mount Type: ---
Documentation: ---
Verified Versions:
Category: ---
oVirt Team: ---
RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: ---

Attachments (Terms of Use)

  None (edit)
Description Richard W.M. Jones 2013-04-29 10:33:26 EDT
+++ This bug was initially created as a clone of Bug #957772 +++

Description of problem:

(Found by infernix on IRC)

The 'tar-out' command does not quote the directory name properly,
meaning that if it contains spaces (or worse, shell meta-characters)
those are not handled properly.


guestfish -v -N fs -m /dev/sda1 <<EOF
mkdir "/foo bar"
tar-out "/foo bar" /tmp/test.tar

The command will fail, and in the verbose messages you will see:

  tar -C /sysroot/foo bar -cf - .
  tar: /sysroot/foo: Cannot chdir: No such file or directory
  tar: Error is not recoverable: exiting now
  pclose: /foo bar: Success
  guestfsd: mainlibguestfs: error: file receive cancelled by daemon
  libguestfs: error: /tmp/test.tar: error in chunked encoding

Notice that the tar -C option is not properly quoted, so it is
passed as two parameters to tar.

Version-Release number of selected component (if applicable):

1.16 - not able to test, but based on code inspection: no
1.18 - no
1.20 - YES
1.21 - YES

--- Additional comment from Richard W.M. Jones on 2013-04-29 09:51:32 EDT ---

The commit which introduced this error was:


which was also backported to the stable-1.20 branch:


The error was introduced as part of the fix for RHBZ#908322.

--- Additional comment from Richard W.M. Jones on 2013-04-29 09:54:27 EDT ---

The fix for bug 908322 also broke the base64-out command
in the same way:

guestfish -v -N fs -m /dev/sda1 <<EOF
touch "/foo bar"
base64-out "/foo bar" /tmp/test.b64

In the verbose output for this command you will see:

  base64 /sysroot/foo bar
  base64: extra operand '/sysroot/foo'
  Try 'base64 --help' for more information.
  pclose: /foo bar: Success
  guestfsd: main_loop: proc 243 (base64_out) took 0.00 seconds
  libguestfs: error: file receive cancelled by daemon
  libguestfs: error: /tmp/test.b64: error in chunked encoding

which is the same kind of problem as for tar.

--- Additional comment from Richard W.M. Jones on 2013-04-29 10:31:58 EDT ---

Fixed upstream:
https://github.com/libguestfs/libguestfs/commit/c5f356a60351dd51cbd3a9aabcac2cd40562f36a (fix)
https://github.com/libguestfs/libguestfs/commit/cc93840d31e440e64e27ee13df3afd134ef2e68f (regression test)
Comment 1 Fedora Update System 2013-04-29 15:16:42 EDT
libguestfs-1.20.6-2.fc18 has been submitted as an update for Fedora 18.
Comment 2 Fedora Update System 2013-04-29 23:26:35 EDT
Package libguestfs-1.20.6-2.fc18:
* should fix your issue,
* was pushed to the Fedora 18 testing repository,
* should be available at your local mirror within two days.
Update it with:
# su -c 'yum update --enablerepo=updates-testing libguestfs-1.20.6-2.fc18'
as soon as you are able to.
Please go to the following url:
then log in and leave karma (feedback).
Comment 3 Fedora Update System 2013-05-21 23:18:27 EDT
libguestfs-1.20.6-2.fc18 has been pushed to the Fedora 18 stable repository.  If problems still persist, please make note of it in this bug report.

Note You need to log in before you can comment on or make changes to this bug.