Sortix nightly manual
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CURLOPT_IPRESOLVE(3) | Library Functions Manual | CURLOPT_IPRESOLVE(3) |
NAME
CURLOPT_IPRESOLVE - IP protocol version to useSYNOPSIS
#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 establishing a connection or choosing one from the connection pool. This is interesting when using hostnames that resolve to more than one IP family.- CURL_IPRESOLVE_WHATEVER
- Default, can use addresses of all IP versions that your system allows.
- CURL_IPRESOLVE_V4
- Uses only IPv4 addresses.
- CURL_IPRESOLVE_V6
- Uses only IPv6 addresses.
DEFAULT
CURL_IPRESOLVE_WHATEVERPROTOCOLS
This functionality affects all supported protocolsEXAMPLE
int main(void)
{
CURL *curl = curl_easy_init();
if(curl) {
CURLcode res;
curl_easy_setopt(curl, CURLOPT_URL, "https://example.com/foo.bin");
/* of all addresses example.com resolves to, only IPv6 ones are used */
curl_easy_setopt(curl, CURLOPT_IPRESOLVE, CURL_IPRESOLVE_V6);
res = curl_easy_perform(curl);
curl_easy_cleanup(curl);
}
}
AVAILABILITY
Added in curl 7.10.8RETURN VALUE
Returns CURLE_OKSEE ALSO
CURLOPT_HTTP_VERSION(3), CURLOPT_RESOLVE(3), CURLOPT_SSLVERSION(3)2024-11-21 | libcurl |