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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: }