Manpages - CURLOPT_UNRESTRICTED_AUTH.3

CURLOPT_UNRESTRICTED_AUTH - send credentials to other hosts too

  #include <curl/curl.h>

  CURLcode curl_easy_setopt(CURL *handle, CURLOPT_UNRESTRICTED_AUTH,
                            long goahead);

Set the long gohead parameter to 1L to make libcurl continue to send authentication (user+password) credentials when following locations, even when hostname changed. This option is meaningful only when setting CURLOPT_FOLLOWLOCATION(3).

By default, libcurl will only send given credentials to the initial host name as given in the original URL, to avoid leaking username + password to other sites.

0

HTTP

  CURL *curl = curl_easy_init();
  if(curl) {
    curl_easy_setopt(curl, CURLOPT_URL, "https://example.com");
    curl_easy_setopt(curl, CURLOPT_FOLLOWLOCATION, 1L);
    curl_easy_setopt(curl, CURLOPT_UNRESTRICTED_AUTH, 1L);
    curl_easy_perform(curl);
  }

Along with HTTP

Returns CURLE_OK if HTTP is supported, and CURLE_UNKNOWN_OPTION if not.

*CURLOPT_FOLLOWLOCATION*(3), *CURLOPT_USERPWD*(3),