/*
 * Function to set error code only when meaningful error has not already 
 * been set.
 *
 * ***** BEGIN LICENSE BLOCK *****
 * Version: MPL 1.1/GPL 2.0/LGPL 2.1
 *
 * 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 Netscape security libraries.
 *
 * The Initial Developer of the Original Code is
 * Netscape Communications Corporation.
 * Portions created by the Initial Developer are Copyright (C) 1994-2000
 * the Initial Developer. All Rights Reserved.
 *
 * Contributor(s):
 *
 * Alternatively, the contents of this file may be used under the terms of
 * either the GNU General Public License Version 2 or later (the "GPL"), or
 * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
 * in which case the provisions of the GPL or the LGPL are applicable instead
 * of those above. If you wish to allow use of your version of this file only
 * under the terms of either the GPL or the LGPL, and not to allow others to
 * use your version of this file under the terms of the MPL, indicate your
 * decision by deleting the provisions above and replace them with the notice
 * and other provisions required by the GPL or the LGPL. If you do not delete
 * the provisions above, a recipient may use your version of this file under
 * the terms of any one of the MPL, the GPL or the LGPL.
 *
 * ***** END LICENSE BLOCK ***** */
/* $Id: sslerr.c,v 1.4 2004/04/27 23:04:39 gerv%gerv.net Exp $ */

#include "prerror.h"
#include "secerr.h"
#include "sslerr.h"
#include "seccomon.h"

/* look at the current value of PR_GetError, and evaluate it to see
 * if it is meaningful or meaningless (out of context). 
 * If it is meaningless, replace it with the hiLevelError.
 * Returns the chosen error value.
 */
int
ssl_MapLowLevelError(int hiLevelError)
{
    int oldErr	= PORT_GetError();

    switch (oldErr) {

    case 0:
    case PR_IO_ERROR:
    case SEC_ERROR_IO:
    case SEC_ERROR_BAD_DATA:
    case SEC_ERROR_LIBRARY_FAILURE:
    case SEC_ERROR_EXTENSION_NOT_FOUND:
    case SSL_ERROR_BAD_CLIENT:
    case SSL_ERROR_BAD_SERVER:
    case SSL_ERROR_SESSION_NOT_FOUND:
    	PORT_SetError(hiLevelError);
	return hiLevelError;

    default:	/* leave the majority of error codes alone. */
	return oldErr;
    }
}