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Updated: Thursday, June 13, 2019
 
 

CURLOPT_DNS_LOCAL_IP4 (3)

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

CURLOPT_DNS_LOCAL_IP4(3)   curl_easy_setopt options   CURLOPT_DNS_LOCAL_IP4(3)



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  argu-
       ment  should  be  of  type  char  * and contain a single numerical IPv4
       address as a string.  Set this option to NULL to use the  default  set-
       ting (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.


ATTRIBUTES
       See attributes(7) for descriptions of the following attributes:


       +---------------+------------------+
       |ATTRIBUTE TYPE | ATTRIBUTE VALUE  |
       +---------------+------------------+
       |Availability   | web/curl         |
       +---------------+------------------+
       |Stability      | Uncommitted      |
       +---------------+------------------+
SEE ALSO
       CURLOPT_DNS_INTERFACE(3), CURLOPT_DNS_LOCAL_IP6(3),



NOTES
       This     software     was    built    from    source    available    at
       https://github.com/oracle/solaris-userland.   The  original   community
       source    was    downloaded    from    https://github.com/curl/curl/ar-
       chive/curl-7_64_0.zip

       Further information about this software can be found on the open source
       community website at http://curl.haxx.se/.



libcurl 7.37.0                    19 Jun 2014         CURLOPT_DNS_LOCAL_IP4(3)