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https.c 2.7 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. * Simple HTTPS GET
  26. * </DESC>
  27. */
  28. #include <stdio.h>
  29. #include <curl/curl.h>
  30. int main(void)
  31. {
  32. CURL *curl;
  33. CURLcode res;
  34. curl_global_init(CURL_GLOBAL_DEFAULT);
  35. curl = curl_easy_init();
  36. if(curl) {
  37. curl_easy_setopt(curl, CURLOPT_URL, "https://example.com/");
  38. #ifdef SKIP_PEER_VERIFICATION
  39. /*
  40. * If you want to connect to a site who is not using a certificate that is
  41. * signed by one of the certs in the CA bundle you have, you can skip the
  42. * verification of the server's certificate. This makes the connection
  43. * A LOT LESS SECURE.
  44. *
  45. * If you have a CA cert for the server stored someplace else than in the
  46. * default bundle, then the CURLOPT_CAPATH option might come handy for
  47. * you.
  48. */
  49. curl_easy_setopt(curl, CURLOPT_SSL_VERIFYPEER, 0L);
  50. #endif
  51. #ifdef SKIP_HOSTNAME_VERIFICATION
  52. /*
  53. * If the site you are connecting to uses a different host name that what
  54. * they have mentioned in their server certificate's commonName (or
  55. * subjectAltName) fields, libcurl refuses to connect. You can skip this
  56. * check, but it makes the connection insecure.
  57. */
  58. curl_easy_setopt(curl, CURLOPT_SSL_VERIFYHOST, 0L);
  59. #endif
  60. /* cache the CA cert bundle in memory for a week */
  61. curl_easy_setopt(curl, CURLOPT_CA_CACHE_TIMEOUT, 604800L);
  62. /* Perform the request, res gets the return code */
  63. res = curl_easy_perform(curl);
  64. /* Check for errors */
  65. if(res != CURLE_OK)
  66. fprintf(stderr, "curl_easy_perform() failed: %s\n",
  67. curl_easy_strerror(res));
  68. /* always cleanup */
  69. curl_easy_cleanup(curl);
  70. }
  71. curl_global_cleanup();
  72. return 0;
  73. }