(* Copyright 1999-2003 John D. Polstra.
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 * 3. All advertising materials mentioning features or use of this software
 *    must display the following acknowledgment:
 *      This product includes software developed by John D. Polstra.
 * 4. The name of the author may not be used to endorse or promote products
 *    derived from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 *
 * $Id: Passwd.i3,v 1.4 2003/03/04 19:26:16 jdp Exp $ *)

INTERFACE Passwd;

IMPORT Logger, OSError, Pathname, Thread;

TYPE
  T = REF RECORD
    client: TEXT;
    sharedSecret: TEXT;
    class: TEXT;
    comment: TEXT;
  END;

  DB <: REFANY;

EXCEPTION Error(TEXT);

PROCEDURE Open(path: Pathname.T): DB
  RAISES {OSError.E, Error, Thread.Alerted};
(* Raises OSError.E if the file cannot be opened.  Other errors cause
   Error to be raised. *)

PROCEDURE GetRealm(db: DB): TEXT;

PROCEDURE GetPrivateKey(db: DB): TEXT;

PROCEDURE Lookup(db: DB;
                 client: TEXT;
		 logger: Logger.T := NIL): T
  RAISES {Error, Thread.Alerted};

PROCEDURE Close(db: DB)
  RAISES {Error, Thread.Alerted};

END Passwd.