[jira] [Updated] (TS-756) Clean out unused carp from DNS resolver structure and code.

["Alan M. Carroll (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/TS-756?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Alan M. Carroll updated TS-756:
-------------------------------

    Attachment: ts-756.patch

Proposed patch. This compiles and runs for me.

> Clean out unused carp from DNS resolver structure and code.
> -----------------------------------------------------------
>
>                 Key: TS-756
>                 URL: https://issues.apache.org/jira/browse/TS-756
>             Project: Traffic Server
>          Issue Type: Improvement
>          Components: DNS
>    Affects Versions: 2.1.7
>            Reporter: Alan M. Carroll
>            Assignee: Alan M. Carroll
>            Priority: Minor
>             Fix For: 2.1.9
>
>         Attachments: ts-756.patch
>
>
> The target structure is __ink_res_state in lib/ts/ink_resolver.h. The items to be removed are
> IPv6 nibble support. This flag and associated values are never checked anywhere else in the codebase.
> The nssocks array. This is a potential bug as it is never initialized but is used to close file descriptors.
> Sort list support which is also never used.
> The point of this is to avoid working on IPv6 support for things that aren't used.

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