NAME

       CURLOPT_ADDRESS_SCOPE - scope id for IPv6 addresses

SYNOPSIS

       #include <curl/curl.h>

       CURLcode curl_easy_setopt(CURL *handle, CURLOPT_ADDRESS_SCOPE, long scope);

DESCRIPTION

       Pass a long specifying the scope id value to use when connecting to IPv6 addresses.

DEFAULT

       0

PROTOCOLS

       This functionality affects all supported protocols

EXAMPLE

       #include <net/if.h> /* for if_nametoindex() */

       int main(void)
       {
         CURL *curl = curl_easy_init();
         if(curl) {
           CURLcode ret;
           long my_scope_id;
           curl_easy_setopt(curl, CURLOPT_URL, "https://example.com/");
           my_scope_id = if_nametoindex("eth0");
           curl_easy_setopt(curl, CURLOPT_ADDRESS_SCOPE, my_scope_id);
           ret = curl_easy_perform(curl);
           curl_easy_cleanup(curl);
         }
       }

AVAILABILITY

       Added in curl 7.19.0

RETURN VALUE

       Returns  CURLE_OK  if  the  option is supported, and CURLE_UNKNOWN_OPTION if not.  Returns
       CURLE_BAD_FUNCTION_ARGUMENT if set to a negative value.

SEE ALSO

       CURLOPT_DEBUGFUNCTION(3), CURLOPT_STDERR(3)