address-scope.c (1995B)
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 * HTTP GET to an IPv6 address with specific scope 26 * </DESC> 27 */ 28 #include <stdio.h> 29 #include <curl/curl.h> 30 31 #if !defined(_WIN32) && !defined(MSDOS) && !defined(__AMIGA__) 32 #include <net/if.h> 33 #endif 34 35 int main(void) 36 { 37 #if !defined(_WIN32) && !defined(MSDOS) && !defined(__AMIGA__) 38 /* Windows/MS-DOS users need to find how to use if_nametoindex() */ 39 CURL *curl; 40 CURLcode res; 41 42 curl = curl_easy_init(); 43 if(curl) { 44 long my_scope_id; 45 curl_easy_setopt(curl, CURLOPT_URL, "https://example.com"); 46 47 my_scope_id = (long)if_nametoindex("eth0"); 48 curl_easy_setopt(curl, CURLOPT_ADDRESS_SCOPE, my_scope_id); 49 50 /* Perform the request, res gets the return code */ 51 res = curl_easy_perform(curl); 52 /* Check for errors */ 53 if(res != CURLE_OK) 54 fprintf(stderr, "curl_easy_perform() failed: %s\n", 55 curl_easy_strerror(res)); 56 57 /* always cleanup */ 58 curl_easy_cleanup(curl); 59 } 60 #endif 61 return 0; 62 }