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Posted to issues@trafficserver.apache.org by "Alan M. Carroll (JIRA)" <ji...@apache.org> on 2010/10/21 00:02:24 UTC

[jira] Created: (TS-493) Return value from pcre_exec tested incorrectly

Return value from pcre_exec tested incorrectly
----------------------------------------------

                 Key: TS-493
                 URL: https://issues.apache.org/jira/browse/TS-493
             Project: Traffic Server
          Issue Type: Bug
    Affects Versions: 2.1.3
            Reporter: Alan M. Carroll
            Priority: Minor
             Fix For: 2.1.4


proxy/ControlMatcher.cc:371

The return value of pcre_exec is checked against -1 for error. However, the return value -1 means "not found" which is not actually an error. If there is an error, different negative values are returned which this logic will interpret as success.


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[jira] Resolved: (TS-493) Return value from pcre_exec tested incorrectly

Posted by "Alan M. Carroll (JIRA)" <ji...@apache.org>.
     [ https://issues.apache.org/jira/browse/TS-493?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Alan M. Carroll resolved TS-493.
--------------------------------

    Resolution: Fixed

Patch committed r1026197

> Return value from pcre_exec tested incorrectly
> ----------------------------------------------
>
>                 Key: TS-493
>                 URL: https://issues.apache.org/jira/browse/TS-493
>             Project: Traffic Server
>          Issue Type: Bug
>    Affects Versions: 2.1.3
>            Reporter: Alan M. Carroll
>            Assignee: Alan M. Carroll
>            Priority: Minor
>             Fix For: 2.1.4
>
>
> proxy/ControlMatcher.cc:371
> The return value of pcre_exec is checked against -1 for error. However, the return value -1 means "not found" which is not actually an error. If there is an error, different negative values are returned which this logic will interpret as success.

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[jira] Assigned: (TS-493) Return value from pcre_exec tested incorrectly

Posted by "Alan M. Carroll (JIRA)" <ji...@apache.org>.
     [ https://issues.apache.org/jira/browse/TS-493?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Alan M. Carroll reassigned TS-493:
----------------------------------

    Assignee: Alan M. Carroll

> Return value from pcre_exec tested incorrectly
> ----------------------------------------------
>
>                 Key: TS-493
>                 URL: https://issues.apache.org/jira/browse/TS-493
>             Project: Traffic Server
>          Issue Type: Bug
>    Affects Versions: 2.1.3
>            Reporter: Alan M. Carroll
>            Assignee: Alan M. Carroll
>            Priority: Minor
>             Fix For: 2.1.4
>
>
> proxy/ControlMatcher.cc:371
> The return value of pcre_exec is checked against -1 for error. However, the return value -1 means "not found" which is not actually an error. If there is an error, different negative values are returned which this logic will interpret as success.

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[jira] Commented: (TS-493) Return value from pcre_exec tested incorrectly

Posted by "Alan M. Carroll (JIRA)" <ji...@apache.org>.
    [ https://issues.apache.org/jira/browse/TS-493?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12923192#action_12923192 ] 

Alan M. Carroll commented on TS-493:
------------------------------------

It is currently unknown which, if any, version of PCRE returned -1 as a general error. It is possible that this is inherited from previous work and was never correct.

> Return value from pcre_exec tested incorrectly
> ----------------------------------------------
>
>                 Key: TS-493
>                 URL: https://issues.apache.org/jira/browse/TS-493
>             Project: Traffic Server
>          Issue Type: Bug
>    Affects Versions: 2.1.3
>            Reporter: Alan M. Carroll
>            Priority: Minor
>             Fix For: 2.1.4
>
>
> proxy/ControlMatcher.cc:371
> The return value of pcre_exec is checked against -1 for error. However, the return value -1 means "not found" which is not actually an error. If there is an error, different negative values are returned which this logic will interpret as success.

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