xref: /curl/docs/examples/http-options.c (revision f540e43b)
1 /***************************************************************************
2  *                                  _   _ ____  _
3  *  Project                     ___| | | |  _ \| |
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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  * Issue an HTTP 'OPTIONS *' request
26  * </DESC>
27  */
28 #include <stdio.h>
29 #include <curl/curl.h>
30 
main(void)31 int main(void)
32 {
33   CURL *curl;
34   CURLcode res;
35 
36   curl = curl_easy_init();
37   if(curl) {
38     curl_easy_setopt(curl, CURLOPT_URL, "https://example.com");
39     curl_easy_setopt(curl, CURLOPT_CUSTOMREQUEST, "OPTIONS");
40 
41     /* issue an OPTIONS * request (no leading slash) */
42     curl_easy_setopt(curl, CURLOPT_REQUEST_TARGET, "*");
43 
44     /* if this operation fails, allow risking a memory leak and do quick exit
45        from libcurl as this exits anyway */
46     curl_easy_setopt(curl, CURLOPT_QUICK_EXIT, 1L);
47 
48     /* Perform the request, res gets the return code */
49     res = curl_easy_perform(curl);
50     /* Check for errors */
51     if(res != CURLE_OK)
52       fprintf(stderr, "curl_easy_perform() failed: %s\n",
53               curl_easy_strerror(res));
54 
55     /* always cleanup */
56     curl_easy_cleanup(curl);
57   }
58   return 0;
59 }
60