|   | ![[ Previous ]](navbprev.gif)  ![[ Contents ]](navbhome.gif)  ![[ Index ]](navbhelp.gif)  ![[ Next ]](navbnext.gif)  | 
    int Ns_ConnReturnUnauthorized(
    Ns_Conn *conn
    );
Calls Ns_ConnReturnStatus or Ns_ConnReturnNotice with a status code of 401 to indicate that the request did not include a valid Authorization header or the header did not specify an authorized user. The user will usually be prompted for a username/password after this status is returned.