GNURLOPT_DNS_LOCAL_IP6(3)

💖 GNURLOPT_DNS_LOCAL_IP6(3) 💖

okay so bestie, this is the GNURLOPT_DNS_LOCAL_IP6(3) page, and it lives in the curl_easy_setopt options manual. Buckle up, it's giving very specific IPv6 DNS binding energy. 🦋

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✨ NAME ✨

CURLOPT_DNS_LOCAL_IP6 — the IPv6 address to bind DNS resolves to. periodt. 💅

🎀 SYNOPSIS 🎀

#include <gnurl/curl.h>

CURLcode curl_easy_setopt(CURL *handle, CURLOPT_DNS_LOCAL_IP6, char
       *address);

🌸 DESCRIPTION 🌸

okay so you're setting the local IPv6 address that the resolver should bind to. The argument should be of type char * and contain a single IPv6 address as a string. Set this option to NULL to use the default setting — aka don't bind to a specific IP address. 🫶

The application does not have to keep the string around after setting this option. so you can let it go, bestie, it's fine. 😭✨

🎀 DEFAULT 🎀

NULL — iconic, unbothered, unbound. 💅

🌈 PROTOCOLS 🌈

All 🌈

🧚 EXAMPLE 🧚

here's the whole vibe, copied exactly:

CURL *curl = curl_easy_init();
if(curl) {
  curl_easy_setopt(curl, CURLOPT_URL, "http://example.com/foo.bin");
  curl_easy_setopt(curl, CURLOPT_DNS_LOCAL_IP6, "fe80::a9ff:fe46:b619");
  ret = curl_easy_perform(curl);
  curl_easy_cleanup(curl);
}

👑 AVAILABILITY 👑

This option requires that libcurl was built with a resolver backend that supports this operation. The c-ares backend is the only such one. iykyk. 🌀

Added in 7.33.0 ⭐

💀 RETURN VALUE 💀

Returns CURLE_OK if the option is supported, CURLE_UNKNOWN_OPTION if not, CURLE_NOT_BUILT_IN if support was disabled at compile-time, or CURLE_BAD_FUNCTION_ARGUMENT when given a bad address. no cap, those are the possible outcomes. 🙈

🦋 SEE ALSO 🦋

CURLOPT_DNS_INTERFACE(3), CURLOPT_DNS_LOCAL_IP4(3), — yes, the trailing comma is canon. 🫶

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mwah 💋 — this page is from libcurl 7.37.0, dated 19 Jun 2014, and it's literally titled GNURLOPT_DNS_LOCAL_IP6(3). bye bestie 🫶✨