curl/docs/libcurl/opts/CURLINFO_HTTP_VERSION.md

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---
c: Copyright (C) Daniel Stenberg, <daniel.se>, et al.
SPDX-License-Identifier: curl
Title: CURLINFO_HTTP_VERSION
Section: 3
Source: libcurl
See-also:
- CURLINFO_RESPONSE_CODE (3)
- curl_easy_getinfo (3)
- curl_easy_setopt (3)
---
# NAME
CURLINFO_HTTP_VERSION - get the http version used in the connection
# SYNOPSIS
~~~c
#include <curl/curl.h>
CURLcode curl_easy_getinfo(CURL *handle, CURLINFO_HTTP_VERSION, long *p);
~~~
# DESCRIPTION
Pass a pointer to a long to receive the version used in the last http
connection done using this handle. The returned value is
CURL_HTTP_VERSION_1_0, CURL_HTTP_VERSION_1_1, CURL_HTTP_VERSION_2_0,
CURL_HTTP_VERSION_3 or 0 if the version cannot be determined.
# PROTOCOLS
HTTP
# EXAMPLE
~~~c
int main(void)
{
CURL *curl = curl_easy_init();
if(curl) {
CURLcode res;
curl_easy_setopt(curl, CURLOPT_URL, "https://example.com");
res = curl_easy_perform(curl);
if(res == CURLE_OK) {
long http_version;
curl_easy_getinfo(curl, CURLINFO_HTTP_VERSION, &http_version);
}
curl_easy_cleanup(curl);
}
}
~~~
# AVAILABILITY
Added in 7.50.0
# RETURN VALUE
Returns CURLE_OK if the option is supported, and CURLE_UNKNOWN_OPTION if not.