CURLINFO_PROTOCOL(3)       curl_easy_getinfo options      CURLINFO_PROTOCOL(3)

NAME
       CURLINFO_PROTOCOL - get the protocol used in the connection

SYNOPSIS
       #include <curl/curl.h>

       CURLcode curl_easy_getinfo(CURL *handle, CURLINFO_PROTOCOL, long *p);

DESCRIPTION
       Pass  a  pointer to a long to receive the version used in the last http
       connection.  The returned value will be one of the CURLPROTO_*  values.

PROTOCOLS
       All

EXAMPLE
       CURL *curl = curl_easy_init();
       if(curl) {
         CURLcode res;
         curl_easy_setopt(curl, CURLOPT_URL, "http://example.com");
         res = curl_easy_perform(curl);
         if(res == CURLE_OK) {
           long protocol;
           curl_easy_getinfo(curl, CURLINFO_PROTOCOL, &protocol);
         }
         curl_easy_cleanup(curl);
       }

AVAILABILITY
       Added in 7.52.0

RETURN VALUE
       Returns  CURLE_OK  if the option is supported, and CURLE_UNKNOWN_OPTION
       if not.

SEE ALSO
       CURLINFO_RESPONSE_CODE(3), curl_easy_getinfo(3), curl_easy_setopt(3),

libcurl 7.54.0                 November 23, 2016          CURLINFO_PROTOCOL(3)