CURLOPT_DNS_LOCAL_IP4 man page

## NAME

CURLOPT_DNS_LOCAL_IP4 - IPv4 address to bind DNS resolves to

## SYNOPSIS

#include <curl/curl.h>

CURLcode curl_easy_setopt(CURL *handle, CURLOPT_DNS_LOCAL_IP4, char *address);

## DESCRIPTION

Set the local IPv4 address that the resolver should bind to. The argument should be of type char * and contain a single numerical IPv4 address as a string. Set this option to NULL to use the default setting (don't bind to a specific IP address).

## DEFAULT

NULL

## PROTOCOLS

All

## EXAMPLE

TODO

## 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.

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.

## SEE ALSO

CURLOPT_DNS_INTERFACE, CURLOPT_DNS_LOCAL_IP4

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