Annotation of embedaddon/curl/docs/examples/getredirect.c, revision 1.1.1.1
1.1 misho 1: /***************************************************************************
2: * _ _ ____ _
3: * Project ___| | | | _ \| |
4: * / __| | | | |_) | |
5: * | (__| |_| | _ <| |___
6: * \___|\___/|_| \_\_____|
7: *
8: * Copyright (C) 1998 - 2018, 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: * Show how to extract Location: header and URL to redirect to.
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: char *location;
34: long response_code;
35:
36: curl = curl_easy_init();
37: if(curl) {
38: curl_easy_setopt(curl, CURLOPT_URL, "https://example.com");
39:
40: /* example.com is redirected, figure out the redirection! */
41:
42: /* Perform the request, res will get the return code */
43: res = curl_easy_perform(curl);
44: /* Check for errors */
45: if(res != CURLE_OK)
46: fprintf(stderr, "curl_easy_perform() failed: %s\n",
47: curl_easy_strerror(res));
48: else {
49: res = curl_easy_getinfo(curl, CURLINFO_RESPONSE_CODE, &response_code);
50: if((res == CURLE_OK) &&
51: ((response_code / 100) != 3)) {
52: /* a redirect implies a 3xx response code */
53: fprintf(stderr, "Not a redirect.\n");
54: }
55: else {
56: res = curl_easy_getinfo(curl, CURLINFO_REDIRECT_URL, &location);
57:
58: if((res == CURLE_OK) && location) {
59: /* This is the new absolute URL that you could redirect to, even if
60: * the Location: response header may have been a relative URL. */
61: printf("Redirected to: %s\n", location);
62: }
63: }
64: }
65:
66: /* always cleanup */
67: curl_easy_cleanup(curl);
68: }
69: return 0;
70: }
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