Bug 810326

Summary: sudo -l inserts new lines based on terminal width, causing errors when output is piped.
Product: Red Hat Enterprise Linux 6 Reporter: Aleš Mareček <amarecek>
Component: sudoAssignee: Daniel Kopeček <dkopecek>
Status: CLOSED ERRATA QA Contact: Aleš Mareček <amarecek>
Severity: medium Docs Contact:
Priority: medium    
Version: 6.3CC: amarecek, azelinka, bturner, dkopecek, jodavis, pvrabec
Target Milestone: rc   
Target Release: ---   
Hardware: Unspecified   
OS: Unspecified   
Whiteboard:
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.
Story Points: ---
Clone Of: 697111 Environment:
Last Closed: 2012-06-20 14:22:14 UTC Type: ---
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Bug Depends On: 697111    
Bug Blocks: 805204    

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