Hi All, When debugging host resolution failures in libcurl, I found it difficult to find out what was wrong with host resolutions without additional information from the resolver backend (like c-ares), and additional CURLINFO option (i.e., CURLINFO_RESOLVER_CODE) would be very helpful in such cases.
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. Thanks, Dmitry Karpov
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