libcurl and https

[hebrerillo]

Hi everyone!

I am having problems trying to use libcurl with https support. This is an example code :

#include <stdio.h>
#include <curl/curl.h>

int main(void)
{
    CURL *curl;
    CURLcode res;

    curl_global_init(CURL_GLOBAL_SSL);

    curl = curl_easy_init();
    if (curl)
    {
        curl_easy_setopt(curl, CURLOPT_URL, "https://example.com");
        curl_easy_setopt(curl, CURLOPT_VERBOSE, 1);
        curl_easy_setopt(curl, CURLOPT_SSL_VERIFYPEER, 0);
        curl_easy_setopt(curl, CURLOPT_SSLVERSION, CURL_SSLVERSION_TLSv1_2);
        
        curl_easy_setopt(curl, CURLOPT_SSL_VERIFYPEER, 0L);
        
        res = curl_easy_perform(curl);

        if (res != CURLE_OK)
            fprintf(stderr, "curl_easy_perform() failed: %s\n", curl_easy_strerror(res));

        curl_easy_cleanup(curl);
    }

    curl_global_cleanup();

    return 0;
}

And this is the error I get :

* Connected to web-proxy.uk.myproxy.net (MY_IP_PROXY) port 8080 (#0)
* ALPN, offering http/1.1
* Cipher selection: ALL:!EXPORT:!EXPORT40:!EXPORT56:!aNULL:!LOW:!RC4:@STRENGTH
* successfully set certificate verify locations:
*   CAfile: /etc/ssl/certs/ca-certificates.crt
  CApath: none
* error:140770FC:SSL routines:SSL23_GET_SERVER_HELLO:unknown protocol
* Closing connection 0
curl_easy_perform() failed: SSL connect error

I have been surfing the net for a long time with no success. Could you please help me to get libcurl working with https?

Thanks a lot!