CURLOPT_PROXYUSERPWD − user name and password to use for proxy authentication
CURLcode curl_easy_setopt(CURL *handle, CURLOPT_PROXYUSERPWD, char *userpwd);
Pass a char * as parameter, which should be [user name]:[password] to use for the connection to the HTTP proxy. Both the name and the password will be URL decoded before use, 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) is used - beware.)
Use CURLOPT_PROXYAUTH(3) to specify the authentication method.
The application does not have to keep the string around after setting this option.
This is NULL by default.
Used with all protocols that can use a proxy
CURL *curl =
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");
ret = curl_easy_perform(curl);
Returns CURLE_OK if proxies are supported, CURLE_UNKNOWN_OPTION if not, or CURLE_OUT_OF_MEMORY if there was insufficient heap space.