/*	$OpenBSD: get_tf_fullname.c,v 1.6 1998/02/25 15:51:13 art Exp $	*/
/* $KTH: get_tf_fullname.c,v 1.6 1997/03/23 03:53:10 joda Exp $ */

/*
 * This source code is no longer held under any constraint of USA
 * `cryptographic laws' since it was exported legally.  The cryptographic
 * functions were removed from the code and a "Bones" distribution was
 * made.  A Commodity Jurisdiction Request #012-94 was filed with the
 * USA State Department, who handed it to the Commerce department.  The
 * code was determined to fall under General License GTDA under ECCN 5D96G,
 * and hence exportable.  The cryptographic interfaces were re-added by Eric
 * Young, and then KTH proceeded to maintain the code in the free world.
 *
 */

/* 
 *  Copyright (C) 1989 by the Massachusetts Institute of Technology
 *
 *  Export of this software from the United States of America is assumed
 *  to require a specific license from the United States Government.
 *  It is the responsibility of any person or organization contemplating
 *  export to obtain such a license before exporting.
 *
 * WITHIN THAT CONSTRAINT, permission to use, copy, modify, and
 * distribute this software and its documentation for any purpose and
 * without fee is hereby granted, provided that the above copyright
 * notice appear in all copies and that both that copyright notice and
 * this permission notice appear in supporting documentation, and that
 * the name of M.I.T. not be used in advertising or publicity pertaining
 * to distribution of the software without specific, written prior
 * permission.  M.I.T. makes no representations about the suitability of
 * this software for any purpose.  It is provided "as is" without express
 * or implied warranty.
 *
 */

#include "krb_locl.h"

/*
 * This file contains a routine to extract the fullname of a user
 * from the ticket file.
 */

/*
 * krb_get_tf_fullname() takes four arguments: the name of the 
 * ticket file, and variables for name, instance, and realm to be
 * returned in.  Since the realm of a ticket file is not really fully 
 * supported, the realm used will be that of the the first ticket in 
 * the file as this is the one that was obtained with a password by
 * krb_get_in_tkt().
 */

int
krb_get_tf_fullname(char *ticket_file, char *name, char *instance, char *realm)
{
    int tf_status;
    CREDENTIALS c;

    if ((tf_status = tf_init(ticket_file, R_TKT_FIL)) != KSUCCESS)
	return(tf_status);

    if (((tf_status = tf_get_pname(c.pname)) != KSUCCESS) ||
	((tf_status = tf_get_pinst(c.pinst)) != KSUCCESS))
	return (tf_status);
    
    if (name != NULL){
	strncpy(name, c.pname, ANAME_SZ);
	name[ANAME_SZ-1] = '\0';
    }
    if (instance != NULL){
	strncpy(instance, c.pinst, INST_SZ);
	instance[INST_SZ-1] = '\0';
    }
    if ((tf_status = tf_get_cred(&c)) == KSUCCESS) {
	if (realm != NULL){
	    strncpy(realm, c.realm, REALM_SZ);
	    realm[REALM_SZ-1] = '\0';
	}
    }
    else {
	if (tf_status == EOF)
	    return(KFAILURE);
	else
	    return(tf_status);
    }    
    tf_close();
    
    return(tf_status);
}