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How to get more information about error code 7

From: Leo Song via curl-library <curl-library_at_cool.haxx.se>
Date: Wed, 18 Mar 2020 17:46:36 -0700

Hello,

My application is trying to access to a host, and getting Curl error code 7.
Curl returned error code 7 - Couldn't connect to server

I need to diagnose this a bit deeper and see what is happening. I've
already implemented a callback function with CURLOPT_DEBUGFUNCTION, and the
function displays messages related to "CURLINFO_TEXT", "CURLINFO_HEADER_IN"
or "CURLINFO_HEADER_OUT".

However, all I see in our log file is the above message with error code 7.
It seems like I am not getting (and Curl is not logging) the error message
or code from openssl or socket calls (if ever exist).

Is there a way to retrieve that? I would appreciate if someone can pinpoint
the code that does that.

The version of libcurl is 7_66_0

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Received on 2020-03-19