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Bug 1197885

Summary: visudo ignores -q flag
Product: Red Hat Enterprise Linux 6 Reporter: Sean Haselden <haselden>
Component: sudoAssignee: Daniel Kopeček <dkopecek>
Status: CLOSED ERRATA QA Contact: Dalibor Pospíšil <dapospis>
Severity: low Docs Contact:
Priority: medium    
Version: 6.6CC: bs168, dapospis, dkopecek, ebenes, pkis, pvrabec, rsroka, savsingh
Target Milestone: rcKeywords: Patch
Target Release: ---   
Hardware: Unspecified   
OS: Unspecified   
Whiteboard:
Fixed In Version: sudo-1.8.6p3-21.el6 Doc Type: Bug Fix
Doc Text:
Story Points: ---
Clone Of:
: 1350828 (view as bug list) Environment:
Last Closed: 2016-05-10 21:43:16 UTC Type: Bug
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Embargoed:
Bug Depends On:    
Bug Blocks: 1172231, 1350828    
Attachments:
Description Flags
quiet parameter patch dkopecek: review+

Description Sean Haselden 2015-03-02 21:30:31 UTC
Description of problem:
visudo ignores the -q (quiet) option and prints out syntax errors.

Version-Release number of selected component (if applicable):
sudo-1.8.6p3-15.el6.x86_64
Also in the version present in RHEL 7.0

How reproducible:
Any sort of syntax error or warning present in sudoers file.  As an example:
Remove a ")" resulting in a syntax error:
## Same thing without a password
%wheel  ALL=(ALL        NOPASSWD: ALL


Steps to Reproduce:
1. Create syntax error in /etc/sudoers
2. Run 'visudo -c -q'


Actual results:
visudo -c -q
visudo: >>> /etc/sudoers: syntax error near line 108 <<<
parse error in /etc/sudoers near line 108


Expected results:
No output, with an exit value of 1


Additional info:
Based on a code review it does not appear to be honoring the '-q' flag         
at all:                                                                        
                                                                               
It's initialized to false to start:                                            
/*                                                                             
     * Arg handling.                                                           
     */                                                                        
    checkonly = oldperms = quiet = strict = false;                             
                                                                               
Then when the args get parsed:                                                 
case 's':                                                                      
        strict = true;      /* strict mode */                                  
        break;                                                                 
        case 'q':                                                              
        quiet = false;      /* quiet mode */                                   
                                                                               
                                                                               
quiet doesn't appear to ever be set to true.                                   
                                                                               
                                                                               
Found some upstream references that this flag was broken in 1.8.6,             
which both RHEL 6 and RHEL 7 are based off.

Comment 4 Radovan Sroka 2015-07-22 09:38:36 UTC
Created attachment 1054744 [details]
quiet parameter patch

Comment 9 errata-xmlrpc 2016-05-10 21:43:16 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.

https://rhn.redhat.com/errata/RHBA-2016-0853.html