**************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2021, 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.se/docs/copyright.html.
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* furnished to do so, under the terms of the COPYING file.
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* 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 have asked libcurl to follow redirects, it may 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), "