**************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2017, 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.
*
**************************************************************************

CURLINFO_EFFECTIVE_URL - get the last used URL #include <curl/curl.h> CURLcode curl_easy_getinfo(CURL *handle, CURLINFO_EFFECTIVE_URL, char **urlp); Pass in a pointer to a char pointer and get the last used effective URL. In cases when you've asked libcurl to follow redirects, it may very well not be the same value you set with CURLOPT_URL(3). The urlp pointer will be NULL or pointing to private memory you MUST NOT free - it gets freed when you call curl_easy_cleanup(3) on the corresponding CURL handle. HTTP(S)

CURL *curl = curl_easy_init();
if(curl) {
 CURLcode res;
 curl_easy_setopt(curl, CURLOPT_URL, "https://example.com");
 curl_easy_setopt(curl, CURLOPT_FOLLOWLOCATION, 1L);
 res = curl_easy_perform(curl);
 if(res == CURLE_OK) {
 char *url = NULL;
 curl_easy_getinfo(curl, CURLINFO_EFFECTIVE_URL, &url);
 if(url)
 printf("Redirect to: %s\\n", url);
 }
 curl_easy_cleanup(curl);
}

Added in 7.4 Returns CURLE_OK if the option is supported, and CURLE_UNKNOWN_OPTION if not. curl_easy_getinfo "(3), " curl_easy_setopt "(3), "