---
name: "CURLOPT_PROXYUSERPWD"
section: "3"
platform: "macos"
package: "curl"
version: "166.0.0.0.1"
release: "macOS 26.5"
platforms: ["linux", "macos"]
url: "https://new.carta.tech/CURLOPT_PROXYUSERPWD"
---

# CURLOPT\_PROXYUSERPWD(3)

user name and password to use for proxy authentication

## NAME

CURLOPT\_PROXYUSERPWD - user name and password to use for proxy authentication

## SYNOPSIS

```
#include <curl/curl.h>
CURLcode curl_easy_setopt(CURL *handle, CURLOPT_PROXYUSERPWD, char *userpwd);
```

## DESCRIPTION

Pass a char pointer as parameter, which should be \[user name\]:\[password\] to use for the connection to the HTTP proxy. Both the name and the password are URL decoded before used, so to include for example a colon in the user name you should encode it as %3A. (This is different to how *[CURLOPT\_USERPWD(3)](/CURLOPT_USERPWD/3.md)* is used - beware.)

Use *[CURLOPT\_PROXYAUTH(3)](/CURLOPT_PROXYAUTH/3.md)* to specify the authentication method.

The application does not have to keep the string around after setting this option.

## DEFAULT

This is NULL by default.

## PROTOCOLS

Used with all protocols that can use a proxy

## EXAMPLE

```
int main(void)
{
  CURL *curl = curl_easy_init();
  if(curl) {
    CURLcode res;
    curl_easy_setopt(curl, CURLOPT_URL, "https://example.com/foo.bin");
    curl_easy_setopt(curl, CURLOPT_PROXY, "http://localhost:8080");
    curl_easy_setopt(curl, CURLOPT_PROXYUSERPWD, "clark%20kent:superman");
    res = curl_easy_perform(curl);
    curl_easy_cleanup(curl);
  }
}
```

## AVAILABILITY

Always

## RETURN VALUE

Returns CURLE\_OK if proxies are supported, CURLE\_UNKNOWN\_OPTION if not, or CURLE\_OUT\_OF\_MEMORY if there was insufficient heap space.

## SEE ALSO

[**CURLOPT\_PROXY**(3)](/CURLOPT_PROXY/3.md), [**CURLOPT\_PROXYPASSWORD**(3)](/CURLOPT_PROXYPASSWORD/3.md), [**CURLOPT\_PROXYTYPE**(3)](/CURLOPT_PROXYTYPE/3.md), [**CURLOPT\_PROXYUSERNAME**(3)](/CURLOPT_PROXYUSERNAME/3.md)