Bug 810326 - sudo -l inserts new lines based on terminal width, causing errors when output is piped.
Summary: sudo -l inserts new lines based on terminal width, causing errors when output...
Keywords:
Status: CLOSED ERRATA
Alias: None
Product: Red Hat Enterprise Linux 6
Classification: Red Hat
Component: sudo
Version: 6.3
Hardware: Unspecified
OS: Unspecified
medium
medium
Target Milestone: rc
: ---
Assignee: Daniel Kopeček
QA Contact: Aleš Mareček
URL:
Whiteboard:
Depends On: 697111
Blocks: 805204
TreeView+ depends on / blocked
 
Reported: 2012-04-05 15:39 UTC by Aleš Mareček
Modified: 2012-11-19 16:57 UTC (History)
6 users (show)

Fixed In Version: sudo-1.7.4p5-10.el6
Doc Type: Bug Fix
Doc Text:
Cause: Sudo word wrapping feature caused output to be wrapped at terminal width boundary even in output that was piped to an other command. Consequence: When piped to grep for example, the matching line could be displayed incomplete due to the output being wrapped by sudo before passing it to grep. Fix: Code was added to sudo to detect whether the output is a pipe and disabling the word wrapping feature if that's the case. Result: Sudo doesn't wrap the output if it goes to a pipe. Greping output from sudo works as expected.
Clone Of: 697111
Environment:
Last Closed: 2012-06-20 14:22:14 UTC
Target Upstream Version:

Attachments (Terms of Use)
Add an attachment (proposed patch, testcase, etc.)


Links
System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHBA-2012:0905 0 normal SHIPPED_LIVE sudo bug fix update 2012-06-19 20:46:54 UTC

Comment 4 Daniel Kopeček 2012-05-29 12:50:55 UTC 
    Technical note added. If any revisions are required, please edit the "Technical Notes" field
    accordingly. All revisions will be proofread by the Engineering Content Services team.
    
    New Contents:
Cause:
Sudo word wrapping feature caused output to be wrapped at terminal width boundary even in output that was piped to an other command.

Consequence:
When piped to grep for example, the matching line could be displayed incomplete due to the output being wrapped by sudo before passing it to grep.

Fix:
Code was added to sudo to detect whether the output is a pipe and disabling the word wrapping feature if that's the case.

Result:
Sudo doesn't wrap the output if it goes to a pipe. Greping output from sudo works as expected.
Comment 5 errata-xmlrpc 2012-06-20 14:22:14 UTC 
Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.

For information on the advisory, and where to find the updated
files, follow the link below.

If the solution does not work for you, open a new bug report.

http://rhn.redhat.com/errata/RHBA-2012-0905.html
Note You need to log in before you can comment on or make changes to this bug.