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/* This file is part of IPACCT
   Copyright (c) Sergey Poznyakoff

   This program is free software; you can redistribute it and/or modify
   it under the terms of the GNU General Public License as published by
   the Free Software Foundation; either version 2 of the License, or
   (at your option) any later version.
 
   This program is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   GNU General Public License for more details.
 
   You should have received a copy of the GNU General Public License
   along with this program; if not, write to the Free Software
   Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
/* $Id: cons_ip.c,v 1.1.1.1 2001/05/31 13:40:56 gray Exp $ */
#if defined(HAVE_CONFIG_H)
# include <config.h>
#endif
#include <stdlib.h>
#include "ipacct.h"

#define min(a,b) (a<b) ? (a):(b)

static u_char *buf;
extern int      snaplen;

void
alloc_snap_buffer()
{
	buf = malloc(snaplen);
	if (!buf)
		die(1, "can't alloc %d bytes for snap buffer", snaplen);
}

void 
ip_handler(ip, length)
	struct ip      *ip;
	unsigned int length;
{
	if (length >= sizeof(struct ip)) {
		if ((long) ip & (sizeof(long) - 1)) {
			bcopy((char *) ip, (char *) buf, min(length, snaplen));
			ip = (struct ip *) buf;
		} 
		
		account(ip);
	}
}


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