easy: Fix curl_easy_duphandle for builds missing IPv6 that use c-ares #5100
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- Ignore CURLE_NOT_BUILT_IN errors returned by c-ares functions in curl_easy_duphandle. Prior to this change if c-ares was used as the resolver backend and either it was too old or libcurl was built without IPv6 support then some of our resolver functions could return CURLE_NOT_BUILT_IN to curl_easy_duphandle causing it to fail. Caused by c8f086b which shipped in 7.69.1. Reported-by: Karl Chen Fixes curl#5097 Closes #xxxx
bagder
approved these changes
Mar 14, 2020
MarcelRaad
approved these changes
Mar 14, 2020
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curl_easy_duphandle.
Prior to this change if c-ares was used as the resolver backend and
either it was too old or libcurl was built without IPv6 support then
some of our resolver functions could return CURLE_NOT_BUILT_IN to
curl_easy_duphandle causing it to fail.
Caused by c8f086b which shipped in 7.69.1.
Reported-by: Karl Chen
Fixes #5097
Closes #xxxx