CURLOPT_IPRESOLVE − specify which IP protocol version to use
#include <gnurl/curl.h>
CURLcode curl_easy_setopt(CURL *handle, CURLOPT_IPRESOLVE, long resolve);
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.
CURL_IPRESOLVE_WHATEVER
All
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);
}
Always
Returns CURLE_OK
CURLOPT_HTTP_VERSION(3), CURLOPT_SSLVERSION(3),