NAME¶
CURLOPT_DNS_SERVERS - set preferred DNS servers
SYNOPSIS¶
#include <curl/curl.h>
CURLcode curl_easy_setopt(CURL *handle, CURLOPT_DNS_SERVERS, char *servers);
DESCRIPTION¶
Pass a char * that is the list of DNS servers to be used instead of the system
default. The format of the dns servers option is:
host[:port][,host[:port]]...
For example:
192.168.1.100,192.168.1.101,3.4.5.6
DEFAULT¶
NULL - use system default
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 7.24.0
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,
CURLE_BAD_FUNCTION_ARGUMENT when given an invalid server list, or
CURLE_OUT_OF_MEMORY if there was insufficient heap space.
SEE ALSO¶
CURLOPT_DNS_LOCAL_IP4(3),
CURLOPT_DNS_CACHE_TIMEOUT(3),