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Annotation of embedaddon/curl/docs/examples/altsvc.c, revision 1.1.1.1

1.1       misho       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:  * HTTP with Alt-Svc support
                     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:     /* cache the alternatives in this file */
                     39:     curl_easy_setopt(curl, CURLOPT_ALTSVC, "altsvc.txt");
                     40: 
                     41:     /* restrict which HTTP versions to use alternatives */
                     42:     curl_easy_setopt(curl, CURLOPT_ALTSVC_CTRL, (long)
                     43:                      CURLALTSVC_H1|CURLALTSVC_H2|CURLALTSVC_H3);
                     44: 
                     45:     /* Perform the request, res will get the return code */
                     46:     res = curl_easy_perform(curl);
                     47:     /* Check for errors */
                     48:     if(res != CURLE_OK)
                     49:       fprintf(stderr, "curl_easy_perform() failed: %s\n",
                     50:               curl_easy_strerror(res));
                     51: 
                     52:     /* always cleanup */
                     53:     curl_easy_cleanup(curl);
                     54:   }
                     55:   return 0;
                     56: }