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CURLOPT_IPRESOLVE

Section: curl_easy_setopt options (3)
Updated: May 05, 2017
Index Return to Main Contents

 

NAME

CURLOPT_IPRESOLVE - specify which IP protocol version to use  

SYNOPSIS

#include <curl/curl.h>

CURLcode curl_easy_setopt(CURL *handle, CURLOPT_IPRESOLVE, long resolve);  

DESCRIPTION

Allows an application to select what kind of IP addresses to use when resolving host names. This is only interesting when using host names that resolve addresses using more than one version of IP. The allowed values are:
CURL_IPRESOLVE_WHATEVER
Default, resolves addresses to all IP versions that your system allows.
CURL_IPRESOLVE_V4
Resolve to IPv4 addresses.
CURL_IPRESOLVE_V6
Resolve to IPv6 addresses.
 

DEFAULT

CURL_IPRESOLVE_WHATEVER  

PROTOCOLS

All  

EXAMPLE

CURL *curl = curl_easy_init();
if(curl) {
  curl_easy_setopt(curl, CURLOPT_URL, "http://example.com/foo.bin");

  /* resolve host name using IPv6-names only */
  curl_easy_setopt(curl, CURLOPT_IPRESOLVE, CURL_IPRESOLVE_V6);

  ret = curl_easy_perform(curl);

  curl_easy_cleanup(curl);
}

 

AVAILABILITY

Always  

RETURN VALUE

Returns CURLE_OK  

SEE ALSO

CURLOPT_HTTP_VERSION(3), CURLOPT_SSLVERSION(3),


 

Index

NAME
SYNOPSIS
DESCRIPTION
DEFAULT
PROTOCOLS
EXAMPLE
AVAILABILITY
RETURN VALUE
SEE ALSO


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