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_* val- ues. 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)