/*
 * Copyright (c) 1997, 1998 Kungliga Tekniska Högskolan
 * (Royal Institute of Technology, Stockholm, Sweden). 
 * 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 acknowledgement: 
 *      This product includes software developed by Kungliga Tekniska 
 *      Högskolan and its contributors. 
 *
 * 4. Neither the name of the Institute nor the names of its contributors 
 *    may be used to endorse or promote products derived from this software 
 *    without specific prior written permission. 
 *
 * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``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 INSTITUTE OR CONTRIBUTORS 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. 
 */

#include "kadm5_locl.h"

RCSID("$Id: set_keys.c,v 1.5 1998/06/30 16:11:59 assar Exp $");

kadm5_ret_t
_kadm5_set_keys(kadm5_server_context *context,
		hdb_entry *ent, const char *password)
{
    int i;
    krb5_data salt;
    kadm5_ret_t ret = 0;
    Key *key;

    krb5_get_salt(ent->principal, &salt);
    for(i = 0; i < ent->keys.len; i++) {
	key = &ent->keys.val[i];
	if(key->salt && 
	   key->salt->type == hdb_pw_salt &&
	   (key->salt->salt.length != 0 ||
	    !krb5_config_get_bool(context->context, NULL, 
				  "kadmin", "use_v4_salt", NULL))){
	    /* zap old salt, possibly keeping version 4 salts */
	    free_Salt(key->salt);
	    key->salt = NULL;
	}
	krb5_free_keyblock_contents(context->context, &key->key);
	ret = krb5_string_to_key(password, 
				 key->salt ? &key->salt->salt : &salt,
				 key->key.keytype,
				 &key->key);
	if(ret)
	    break;
    }
    ent->kvno++;
    krb5_data_free(&salt);
    return ret;
}
