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