CURLOPT_DISALLOW_USERNAME_IN_URL(3)                   Library Functions Manual

NAME
       CURLOPT_DISALLOW_USERNAME_IN_URL - disallow specifying username in the
       URL

SYNOPSIS
       #include <curl/curl.h>

       CURLcode curl_easy_setopt(CURL *handle, CURLOPT_DISALLOW_USERNAME_IN_URL,
                                 long disallow);

DESCRIPTION
       A long parameter set to 1 tells the library to not allow URLs set with
       CURLOPT_URL(3) that include a username.

       This is the equivalent to the CURLU_DISALLOW_USER flag for the
       curl_url_set(3) function.

       Note that this option does not affect URLs set with CURLOPT_CURLU(3).

DEFAULT
       0 (disabled)

PROTOCOLS
       This functionality affects all supported protocols

EXAMPLE
       int main(void)
       {
         CURL *curl = curl_easy_init();
         if(curl) {
           CURLcode result;
           curl_easy_setopt(curl, CURLOPT_URL, "https://example.com");
           curl_easy_setopt(curl, CURLOPT_DISALLOW_USERNAME_IN_URL, 1L);

           result = curl_easy_perform(curl);
           curl_easy_cleanup(curl);
         }
       }

AVAILABILITY
       Added in curl 7.61.0

RETURN VALUE
       curl_easy_setopt(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).

       curl_easy_perform(3) returns CURLE_LOGIN_DENIED if this option is
       enabled and a URL containing a username is specified.

SEE ALSO
       CURLOPT_PROTOCOLS_STR(3), CURLOPT_URL(3), curl_url_set(3),
       libcurl-security(3)

libcurl                           2026-06-24
                                           CURLOPT_DISALLOW_USERNAME_IN_URL(3)