DOKK / manpages / debian 11 / libcurl4-doc / CURLINFO_EFFECTIVE_URL.3.en
CURLINFO_EFFECTIVE_URL(3) curl_easy_getinfo options CURLINFO_EFFECTIVE_URL(3)

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),

November 4, 2020 libcurl 7.74.0