1--- 2c: Copyright (C) Daniel Stenberg, <daniel@haxx.se>, et al. 3SPDX-License-Identifier: curl 4Title: CURLINFO_HTTP_VERSION 5Section: 3 6Source: libcurl 7See-also: 8 - CURLINFO_RESPONSE_CODE (3) 9 - curl_easy_getinfo (3) 10 - curl_easy_setopt (3) 11Protocol: 12 - HTTP 13--- 14 15# NAME 16 17CURLINFO_HTTP_VERSION - get the http version used in the connection 18 19# SYNOPSIS 20 21~~~c 22#include <curl/curl.h> 23 24CURLcode curl_easy_getinfo(CURL *handle, CURLINFO_HTTP_VERSION, long *p); 25~~~ 26 27# DESCRIPTION 28 29Pass a pointer to a long to receive the version used in the last http 30connection done using this handle. The returned value is 31CURL_HTTP_VERSION_1_0, CURL_HTTP_VERSION_1_1, CURL_HTTP_VERSION_2_0, 32CURL_HTTP_VERSION_3 or 0 if the version cannot be determined. 33 34# EXAMPLE 35 36~~~c 37int main(void) 38{ 39 CURL *curl = curl_easy_init(); 40 if(curl) { 41 CURLcode res; 42 curl_easy_setopt(curl, CURLOPT_URL, "https://example.com"); 43 res = curl_easy_perform(curl); 44 if(res == CURLE_OK) { 45 long http_version; 46 curl_easy_getinfo(curl, CURLINFO_HTTP_VERSION, &http_version); 47 } 48 curl_easy_cleanup(curl); 49 } 50} 51~~~ 52 53# AVAILABILITY 54 55Added in 7.50.0 56 57# RETURN VALUE 58 59Returns CURLE_OK if the option is supported, and CURLE_UNKNOWN_OPTION if not. 60