Hello Jason, Thanks for the reply. This Curl error 7 is happening intermittently, so yes I am able to connect to the server using the command line tool. Therefore, in case if this happens again in future, I want my application to display more error messages than just Curl error 7, which is why I am wondering if there is a way to add debugging log from openssl in libcurl.
Best, On Thu, Mar 19, 2020 at 10:24 AM Jason Proctor <ja...@spatiallabs.com> wrote: > On Wed, Mar 18, 2020 at 11:29 PM Leo Song via curl-library > <curl-library@cool.haxx.se> wrote: > > > > 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 > > Can you connect to your server using the Curl command line tool? That > would be a simple way of determining whether the client is doing > something wrong or the host is unavailable for some other reason. > > hth > J >
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