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.TH CURLOPT_DNS_LOCAL_IP4 3 "December 21, 2016" "libcurl 7.54.0" "curl_easy_setopt options"

.SH NAME
CURLOPT_DNS_LOCAL_IP4 \- IPv4 address to bind DNS resolves to
.SH SYNOPSIS
#include <curl/curl.h>

CURLcode curl_easy_setopt(CURL *handle, CURLOPT_DNS_LOCAL_IP4, char *address);
.SH DESCRIPTION
Set the local IPv4 \fIaddress\fP 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).

The application does not have to keep the string around after setting this
option.
.SH DEFAULT
NULL
.SH PROTOCOLS
All
.SH EXAMPLE
TODO
.SH 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
.SH 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.
.SH "SEE ALSO"
.BR CURLOPT_DNS_INTERFACE "(3), " CURLOPT_DNS_LOCAL_IP4 "(3), "
