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curl

    1: /***************************************************************************
    2:  *                                  _   _ ____  _
    3:  *  Project                     ___| | | |  _ \| |
    4:  *                             / __| | | | |_) | |
    5:  *                            | (__| |_| |  _ <| |___
    6:  *                             \___|\___/|_| \_\_____|
    7:  *
    8:  * Copyright (C) 1998 - 2019, 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.haxx.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:  ***************************************************************************/
   22: /* <DESC>
   23:  * Very simple HTTP/3 GET
   24:  * </DESC>
   25:  */
   26: #include <stdio.h>
   27: #include <curl/curl.h>
   28: 
   29: int main(void)
   30: {
   31:   CURL *curl;
   32:   CURLcode res;
   33: 
   34:   curl = curl_easy_init();
   35:   if(curl) {
   36:     curl_easy_setopt(curl, CURLOPT_URL, "https://example.com");
   37: 
   38:     /* Forcing HTTP/3 will make the connection fail if the server isn't
   39:        accessible over QUIC + HTTP/3 on the given host and port.
   40:        Consider using CURLOPT_ALTSVC instead! */
   41:     curl_easy_setopt(curl, CURLOPT_HTTP_VERSION, (long)CURL_HTTP_VERSION_3);
   42: 
   43:     /* Perform the request, res will get the return code */
   44:     res = curl_easy_perform(curl);
   45:     /* Check for errors */
   46:     if(res != CURLE_OK)
   47:       fprintf(stderr, "curl_easy_perform() failed: %s\n",
   48:               curl_easy_strerror(res));
   49: 
   50:     /* always cleanup */
   51:     curl_easy_cleanup(curl);
   52:   }
   53:   return 0;
   54: }