noble (3) CURLOPT_UNRESTRICTED_AUTH.3.gz

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)