CURLOPT_DNS_SERVERS(3)     curl_easy_setopt options     CURLOPT_DNS_SERVERS(3)

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

       The  application  does not have to keep the string around after setting
       this option.

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),

libcurl 7.54.0                 December 21, 2016        CURLOPT_DNS_SERVERS(3)