Provided by: libcurl4-doc_7.55.1-1ubuntu2_all bug

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).

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

DEFAULT

       NULL

PROTOCOLS

       All

EXAMPLE

       CURL *curl = curl_easy_init();
       if(curl) {
         curl_easy_setopt(curl, CURLOPT_URL, "http://example.com/foo.bin");
         curl_easy_setopt(curl, CURLOPT_DNS_LOCAL_IP4, "192.168.0.14");
         ret = curl_easy_perform(curl);
         curl_easy_cleanup(curl);
       }

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(3), CURLOPT_DNS_LOCAL_IP4(3),