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RE: Feature request about curlinfo option returning resolver status/error code

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From: Dmitry Karpov via curl-library <curl-library_at_lists.haxx.se>
Date: Tue, 19 Apr 2022 17:35:56 +0000

It would return a status code the resolver returns when it performs a DNS query.

For instance, c-ares passes its status code in resolution callbacks, so this status code would be returned in the CURLINFO_RESOLVER_CODE.
So, if something goes wrong with host name resolution, this code will give a hint why the resolver failed.

-----Original Message-----
From: Daniel Stenberg <daniel_at_haxx.se>
Sent: Sunday, April 17, 2022 2:56 AM
To: Dmitry Karpov via curl-library <curl-library_at_lists.haxx.se>
Cc: Dmitry Karpov <dkarpov_at_roku.com>
Subject: Re: Feature request about curlinfo option returning resolver status/error code

On Fri, 15 Apr 2022, Dmitry Karpov via curl-library wrote:

> So, I propose to add a new CURLINFO_RESOLVER_CODE info option, which
> will return the resolver status/code from the resolver backends that
> provide such codes (primarily c-ares).
>
> If libcurl core maintainers and community agree that it will be a
> useful feature, I can create a PR.

What values do you propose CURLINFO_RESOLVER_CODE would return ?

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Received on 2022-04-19

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