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CURLOPT_DISALLOW_USERNAME_IN_URL - disallow specifying username in the url #include <curl/curl.h> CURLcode curl_easy_setopt(CURL *handle, CURLOPT_DISALLOW_USERNAME_IN_URL, long disallow); A long parameter set to 1 tells the library to not allow URLs that include a username. 0 (disabled) - user names are allowed by default. Several

CURL *curl = curl_easy_init();
if(curl) {

 curl_easy_setopt(curl, CURLOPT_URL, "https://example.com");
 curl_easy_setopt(curl, CURLOPT_DISALLOW_USERNAME_IN_URL, 1L);

 curl_easy_perform(curl);
}

Added in libcurl 7.61.0 Returns CURLE_OK if the option is supported, and CURLE_UNKNOWN_OPTION if not. curl_easy_perform() will return CURLE_LOGIN_DENIED if this option is enabled and a URL containing a username is specified. libcurl-security "(3), ", CURLOPT_PROTOCOLS "(3)"