NAME

       CURLOPT_UNRESTRICTED_AUTH - send credentials to other hosts too

SYNOPSIS

       #include <curl/curl.h>

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

DESCRIPTION

       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).

       Further,  when  this  option  is  not  used or set to 0L, libcurl does not send custom nor
       internally generated Authentication: headers on requests done to other hosts than the  one
       used for the initial URL.

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

       This option should be used with caution: when curl follows redirects  it  blindly  fetches
       the  next  URL  as  instructed  by  the server. Setting CURLOPT_UNRESTRICTED_AUTH(3) to 1L
       therefore also makes curl trust the server and sends possibly sensitive credentials to any
       host the server points out. And then maybe again and again as the following hosts can keep
       redirecting to new hosts.

DEFAULT

       0

PROTOCOLS

       HTTP

EXAMPLE

       int main(void)
       {
         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);
         }
       }

AVAILABILITY

       Along with HTTP

RETURN VALUE

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

SEE ALSO

       CURLOPT_FOLLOWLOCATION(3),            CURLOPT_USERPWD(3),            CURLOPT_MAXREDIRS(3),
       CURLOPT_REDIR_PROTOCOLS_STR(3), CURLINFO_REDIRECT_COUNT(3)