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address-scope.c 1.8 KB

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  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. #ifndef _WIN32
  31. #include <net/if.h>
  32. #endif
  33. int main(void)
  34. {
  35. #ifndef _WIN32
  36. /* Windows users need to find how to use if_nametoindex() */
  37. CURL *curl;
  38. CURLcode res;
  39. curl = curl_easy_init();
  40. if(curl) {
  41. long my_scope_id;
  42. curl_easy_setopt(curl, CURLOPT_URL, "https://example.com");
  43. my_scope_id = (long)if_nametoindex("eth0");
  44. curl_easy_setopt(curl, CURLOPT_ADDRESS_SCOPE, my_scope_id);
  45. /* Perform the request, res gets 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. /* always cleanup */
  52. curl_easy_cleanup(curl);
  53. }
  54. #endif
  55. return 0;
  56. }