CURLINFO\_HTTP\_VERSION(3) Library Functions Manual CURLINFO\_HTTP\_VERSION(3)

# [NAME](#NAME)

CURLINFO\_HTTP\_VERSION - HTTP version used in the transfer

# [SYNOPSIS](#SYNOPSIS)

```
#include <curl/curl.h>
CURLcode curl_easy_getinfo(CURL *handle, CURLINFO_HTTP_VERSION, long *p);
```

# [DESCRIPTION](#DESCRIPTION)

Pass a pointer to a long to receive the version used in the last http transfer 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](#PROTOCOLS)

This functionality affects http only

# [EXAMPLE](#EXAMPLE)

```
int main(void)
{


  CURL *curl = curl_easy_init();


  if(curl) {


    CURLcode result;


    curl_easy_setopt(curl, CURLOPT_URL, "https://example.com");


    result = curl_easy_perform(curl);


    if(result == CURLE_OK) {


      long http_version;


      curl_easy_getinfo(curl, CURLINFO_HTTP_VERSION, &http_version);


    }


    curl_easy_cleanup(curl);


  }
}
```

# [AVAILABILITY](#AVAILABILITY)

Added in curl 7.50.0

# [RETURN VALUE](#RETURN_VALUE)

[*curl\_easy\_getinfo(3)*](/man/os/curl/curl_easy_getinfo.3) returns a CURLcode indicating success or error.

CURLE\_OK (0) means everything was OK, non-zero means an error occurred, see [*libcurl-errors(3)*](/man/os/curl/libcurl-errors.3).

# [SEE ALSO](#SEE_ALSO)

[**CURLINFO\_RESPONSE\_CODE**(3)](/man/os/curl/CURLINFO_RESPONSE_CODE.3), [**curl\_easy\_getinfo**(3)](/man/os/curl/curl_easy_getinfo.3), [**curl\_easy\_setopt**(3)](/man/os/curl/curl_easy_setopt.3)

2026-10-31 libcurl

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Document: CURLINFO_HTTP_VERSION(3) from curl 8.23.0-r3 (Chainguard OS)
Source: https://github.com/curl/curl.git