mirror of
https://github.com/curl/curl.git
synced 2024-12-09 06:30:06 +08:00
71 lines
2.3 KiB
C
71 lines
2.3 KiB
C
/***************************************************************************
|
|
* _ _ ____ _
|
|
* Project ___| | | | _ \| |
|
|
* / __| | | | |_) | |
|
|
* | (__| |_| | _ <| |___
|
|
* \___|\___/|_| \_\_____|
|
|
*
|
|
* Copyright (C) 1998 - 2016, Daniel Stenberg, <daniel@haxx.se>, et al.
|
|
*
|
|
* This software is licensed as described in the file COPYING, which
|
|
* you should have received as part of this distribution. The terms
|
|
* are also available at https://curl.haxx.se/docs/copyright.html.
|
|
*
|
|
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
|
|
* copies of the Software, and permit persons to whom the Software is
|
|
* furnished to do so, under the terms of the COPYING file.
|
|
*
|
|
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
|
|
* KIND, either express or implied.
|
|
*
|
|
***************************************************************************/
|
|
/* <DESC>
|
|
* Show how to extract Location: header and URL to redirect to.
|
|
* </DESC>
|
|
*/
|
|
#include <stdio.h>
|
|
#include <curl/curl.h>
|
|
|
|
int main(void)
|
|
{
|
|
CURL *curl;
|
|
CURLcode res;
|
|
char *location;
|
|
long response_code;
|
|
|
|
curl = curl_easy_init();
|
|
if(curl) {
|
|
curl_easy_setopt(curl, CURLOPT_URL, "http://example.com");
|
|
|
|
/* example.com is redirected, figure out the redirection! */
|
|
|
|
/* Perform the request, res will get the return code */
|
|
res = curl_easy_perform(curl);
|
|
/* Check for errors */
|
|
if(res != CURLE_OK)
|
|
fprintf(stderr, "curl_easy_perform() failed: %s\n",
|
|
curl_easy_strerror(res));
|
|
else {
|
|
res = curl_easy_getinfo(curl, CURLINFO_RESPONSE_CODE, &response_code);
|
|
if((res == CURLE_OK) &&
|
|
((response_code / 100) != 3)) {
|
|
/* a redirect implies a 3xx response code */
|
|
fprintf(stderr, "Not a redirect.\n");
|
|
}
|
|
else {
|
|
res = curl_easy_getinfo(curl, CURLINFO_REDIRECT_URL, &location);
|
|
|
|
if((res == CURLE_OK) && location) {
|
|
/* This is the new absolute URL that you could redirect to, even if
|
|
* the Location: response header may have been a relative URL. */
|
|
printf("Redirected to: %s\n", location);
|
|
}
|
|
}
|
|
}
|
|
|
|
/* always cleanup */
|
|
curl_easy_cleanup(curl);
|
|
}
|
|
return 0;
|
|
}
|