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
       (do not bind to a specific IP address).

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

DEFAULT

       NULL

PROTOCOLS

       This functionality affects all supported protocols

EXAMPLE

       int main(void)
       {
         CURL *curl = curl_easy_init();
         if(curl) {
           CURLcode res;
           curl_easy_setopt(curl, CURLOPT_URL, "https://example.com/foo.bin");
           curl_easy_setopt(curl, CURLOPT_DNS_LOCAL_IP4, "192.168.0.14");
           res = curl_easy_perform(curl);
           curl_easy_cleanup(curl);
         }
       }

NOTES

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

AVAILABILITY

       Added in curl 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(3), CURLOPT_DNS_LOCAL_IP6(3), CURLOPT_DNS_SERVERS(3)