xref: /curl/docs/examples/http3-present.c (revision 2bc1d775)
1 /***************************************************************************
2  *                                  _   _ ____  _
3  *  Project                     ___| | | |  _ \| |
4  *                             / __| | | | |_) | |
5  *                            | (__| |_| |  _ <| |___
6  *                             \___|\___/|_| \_\_____|
7  *
8  * Copyright (C) Daniel Stenberg, <daniel@haxx.se>, et al.
9  *
10  * This software is licensed as described in the file COPYING, which
11  * you should have received as part of this distribution. The terms
12  * are also available at https://curl.se/docs/copyright.html.
13  *
14  * You may opt to use, copy, modify, merge, publish, distribute and/or sell
15  * copies of the Software, and permit persons to whom the Software is
16  * furnished to do so, under the terms of the COPYING file.
17  *
18  * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
19  * KIND, either express or implied.
20  *
21  * SPDX-License-Identifier: curl
22  *
23  ***************************************************************************/
24 /* <DESC>
25  * Checks if HTTP/3 support is present in libcurl.
26  * </DESC>
27  */
28 #include <stdio.h>
29 #include <curl/curl.h>
30 
main(void)31 int main(void)
32 {
33   curl_version_info_data *ver;
34 
35   curl_global_init(CURL_GLOBAL_ALL);
36 
37   ver = curl_version_info(CURLVERSION_NOW);
38   if(ver->features & CURL_VERSION_HTTP2)
39     printf("HTTP/2 support is present\n");
40 
41   if(ver->features & CURL_VERSION_HTTP3)
42     printf("HTTP/3 support is present\n");
43 
44   if(ver->features & CURL_VERSION_ALTSVC)
45     printf("Alt-svc support is present\n");
46 
47   curl_global_cleanup();
48   return 0;
49 }
50