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)