---
name: "CURLOPT_CURLU"
section: "3"
platform: "linux"
package: "curl"
version: "8.23.0-1"
release: "Arch Linux 2026-11-01"
platforms: ["linux", "macos"]
url: "https://new.carta.tech/CURLOPT_CURLU"
---

# CURLOPT\_CURLU(3)

URL in URL handle format

## NAME

CURLOPT\_CURLU - URL in URL handle format

## SYNOPSIS

```
#include <curl/curl.h>
CURLcode curl_easy_setopt(CURL *handle, CURLOPT_CURLU, CURLU *pointer);
```

## DESCRIPTION

Pass in a pointer to the *URL* handle to work with. The parameter should be a *CURLU pointer*. Setting *[CURLOPT\_CURLU(3)](/CURLOPT_CURLU/3.md)* explicitly overrides *[CURLOPT\_URL(3)](/CURLOPT_URL/3.md)*.

*[CURLOPT\_URL(3)](/CURLOPT_URL/3.md)* or *[CURLOPT\_CURLU(3)](/CURLOPT_CURLU/3.md)* **must** be set before a transfer is started.

libcurl uses this handle and its contents read-only and does not change its contents. An application can update the contents of the URL handle after a transfer is done and if the same handle is used in a subsequent request the updated contents is used.

## DEFAULT

NULL

## PROTOCOLS

This functionality affects all supported protocols

## EXAMPLE

```
int main(void)
{
  CURL *curl = curl_easy_init();
  CURLU *urlp = curl_url();
  if(curl) {
    CURLcode result;
    CURLUcode ret;
    ret = curl_url_set(urlp, CURLUPART_URL, "https://example.com", 0);
    curl_easy_setopt(curl, CURLOPT_CURLU, urlp);
    result = curl_easy_perform(curl);
    curl_url_cleanup(urlp);
    curl_easy_cleanup(curl);
  }
}
```

## AVAILABILITY

Added in curl 7.63.0

## RETURN VALUE

*[curl\_easy\_setopt(3)](/curl_easy_setopt/3.md)* returns a CURLcode indicating success or error.

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

## SEE ALSO

[**CURLOPT\_URL**(3)](/CURLOPT_URL/3.md), [**curl\_url**(3)](/curl_url/3.md), [**curl\_url\_cleanup**(3)](/curl_url_cleanup/3.md), [**curl\_url\_dup**(3)](/curl_url_dup/3.md), [**curl\_url\_get**(3)](/curl_url_get/3.md), [**curl\_url\_set**(3)](/curl_url_set/3.md), [**curl\_url\_strerror**(3)](/curl_url_strerror/3.md)