/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*-
 * 
 * The contents of this file are subject to the Mozilla Public
 * License Version 1.1 (the "License"); you may not use this file
 * except in compliance with the License. You may obtain a copy of
 * the License at http://www.mozilla.org/MPL/
 * 
 * Software distributed under the License is distributed on an "AS
 * IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
 * implied. See the License for the specific language governing
 * rights and limitations under the License.
 * 
 * The Original Code is the mozilla.org LDAP XPCOM SDK.
 * 
 * The Initial Developer of the Original Code is Netscape
 * Communications Corporation.  Portions created by Netscape are 
 * Copyright (C) 2002 Netscape Communications Corporation.  All
 * Rights Reserved.
 * 
 * Contributor(s): Dan Mosedale <dmose@netscape.com> (original author)
 * 
 * Alternatively, the contents of this file may be used under the
 * terms of the GNU General Public License Version 2 or later (the
 * "GPL"), in which case the provisions of the GPL are applicable 
 * instead of those above.  If you wish to allow use of your 
 * version of this file only under the terms of the GPL and not to
 * allow others to use your version of this file under the MPL,
 * indicate your decision by deleting the provisions above and
 * replace them with the notice and other provisions required by
 * the GPL.  If you do not delete the provisions above, a recipient
 * may use your version of this file under either the MPL or the
 * GPL.
 */

#include "nsISupports.idl"

/**
 * Representation of a BER value as an interface containing an array of
 * bytes.  Someday this should perhaps be obsoleted by a better, more
 * generalized version of nsIByteBuffer, but that's currently not even
 * scriptable (see bug 125596).  
 */
[scriptable, uuid(c817c5fe-1dd1-11b2-a10b-ae9885762ea9)]
interface nsILDAPBERValue : nsISupports 
{
    /**
     * Set the BER value from an array of bytes (copies).
     *
     * @exception NS_ERROR_OUT_OF_MEMORY    couldn't allocate buffer to copy to
     */
    void set(in unsigned long aCount, 
             [array, size_is(aCount)] in octet aValue);

    /** 
     * Set the BER value from a UTF8 string (copies).
     *
     * @exception NS_ERROR_OUT_OF_MEMORY    couldn't allocate buffer to copy to
     */
    void setFromUTF8(in AUTF8String aValue);

    /** 
     * Get the BER value as an array of bytes.  Note that if this value is
     * zero-length, aCount and aRetVal will both be 0.  This means that 
     * (in C++ anyway) the caller MUST test either aCount or aRetval before
     * dereferencing aRetVal.
     *
     * @exception NS_ERROR_OUT_OF_MEMORY    couldn't allocate buffer to copy to
     */
    void get(out unsigned long aCount, 
             [retval, array, size_is(aCount)] out octet aRetVal);
};