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 13Added-in: 7.50.0 14--- 15 16# NAME 17 18CURLINFO_HTTP_VERSION - get the http version used in the connection 19 20# SYNOPSIS 21 22~~~c 23#include <curl/curl.h> 24 25CURLcode curl_easy_getinfo(CURL *handle, CURLINFO_HTTP_VERSION, long *p); 26~~~ 27 28# DESCRIPTION 29 30Pass a pointer to a long to receive the version used in the last http 31connection done using this handle. The returned value is 32CURL_HTTP_VERSION_1_0, CURL_HTTP_VERSION_1_1, CURL_HTTP_VERSION_2_0, 33CURL_HTTP_VERSION_3 or 0 if the version cannot be determined. 34 35# %PROTOCOLS% 36 37# EXAMPLE 38 39~~~c 40int main(void) 41{ 42 CURL *curl = curl_easy_init(); 43 if(curl) { 44 CURLcode res; 45 curl_easy_setopt(curl, CURLOPT_URL, "https://example.com"); 46 res = curl_easy_perform(curl); 47 if(res == CURLE_OK) { 48 long http_version; 49 curl_easy_getinfo(curl, CURLINFO_HTTP_VERSION, &http_version); 50 } 51 curl_easy_cleanup(curl); 52 } 53} 54~~~ 55 56# %AVAILABILITY% 57 58# RETURN VALUE 59 60Returns CURLE_OK if the option is supported, and CURLE_UNKNOWN_OPTION if not. 61