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CURLOPT_ADDRESS_SCOPE.md 1.1 KB


c: Copyright (C) Daniel Stenberg, daniel@haxx.se, et al. SPDX-License-Identifier: curl Title: CURLOPT_ADDRESS_SCOPE Section: 3 Source: libcurl See-also:

  • CURLOPT_DEBUGFUNCTION (3)
  • CURLOPT_STDERR (3) Protocol:
  • All ---

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

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 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.