/*
 * Copyright (c) 1997 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 "krb5_locl.h"

RCSID("$Id: verify_user.c,v 1.7 1998/05/29 22:20:12 joda Exp $");

krb5_error_code
krb5_verify_user(krb5_context context, 
		 krb5_principal principal,
		 krb5_ccache ccache,
		 const char *password,
		 krb5_boolean secure,
		 const char *service)
{

    krb5_error_code ret;
    krb5_creds cred;
    krb5_principal server;
    krb5_get_init_creds_opt opt;
    krb5_verify_init_creds_opt vopt;
    krb5_ccache id;
    
    krb5_get_init_creds_opt_init (&opt);

    ret = krb5_get_init_creds_password (context,
					&cred,
					principal,
					(char*)password,
					NULL,
					NULL,
					0,
					NULL,
					&opt);
    
    if(ret) return ret;

    ret = krb5_sname_to_principal (context, NULL, service, KRB5_NT_SRV_HST,
				   &server);
    if(ret) return ret;

    krb5_verify_init_creds_opt_init(&vopt);
    krb5_verify_init_creds_opt_set_ap_req_nofail(&vopt, secure);

    ret = krb5_verify_init_creds(context,
				 &cred,
				 server,
				 NULL,
				 NULL,
				 &vopt);
    krb5_free_principal(context, server);
    if(ret) return ret;
    if(ccache == NULL)
	ret = krb5_cc_default (context, &id);
    else
	id = ccache;
    if(ret == 0){
	ret = krb5_cc_initialize(context, id, principal);
	if(ret == 0){
	    ret = krb5_cc_store_cred(context, id, &cred);
	}
	if(ccache == NULL)
	    krb5_cc_close(context, id);
    }
    krb5_free_creds_contents(context, &cred);
    return ret;
}
