/*
 * Copyright (C) 1993-2001 by Darren Reed.
 *
 * See the IPFILTER.LICENCE file for details on licencing.
 *
 * Added redirect stuff and a variety of bug fixes. (mcn@EnGarde.com)
 *
 * Copyright 2007 Sun Microsystems, Inc.  All rights reserved.
 * Use is subject to license terms.
 */

#include "ipf.h"
#include "kmem.h"

#if !defined(lint)
static const char rcsid[] = "@(#)$Id: getnattype.c,v 1.3 2004/01/17 17:26:07 darrenr Exp $";
#endif


/*
 * Get a nat filter type given its kernel address.
 */
char *getnattype(nat, alive)
nat_t *nat;
int alive;
{
        static char unknownbuf[20];
        ipnat_t *ipn, ipnatbuff;
        char *which;
        int type;

        if (!nat)
                return "???";
        if (alive) {
                type = nat->nat_redir;
        } else {
                ipn = nat->nat_ptr;
                if (kmemcpy((char *)&ipnatbuff, (long)ipn, sizeof(ipnatbuff)))
                        return "!!!";
                type = ipnatbuff.in_redir;
        }

        switch (type)
        {
        case NAT_MAP :
                which = "MAP";
                break;
        case NAT_MAPBLK :
                which = "MAP-BLOCK";
                break;
        case NAT_REDIRECT :
                which = "RDR";
                break;
        case NAT_BIMAP :
                which = "BIMAP";
                break;
        default :
                sprintf(unknownbuf, "unknown(%04x)", type & 0xffffffff);
                which = unknownbuf;
                break;
        }
        return which;
}