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