/*
 * Copyright (C) 2002 by Darren Reed.
 *
 * See the IPFILTER.LICENCE file for details on licencing.
 *
 * $Id: remove_hash.c,v 1.1 2003/04/13 06:40:14 darrenr Exp $
 */

#include <fcntl.h>
#include <sys/ioctl.h>
#include "ipf.h"
#include "netinet/ip_lookup.h"
#include "netinet/ip_htable.h"

static int hashfd = -1;


int remove_hash(iphp, iocfunc)
iphtable_t *iphp;
ioctlfunc_t iocfunc;
{
        iplookupop_t op;
        iphtable_t iph;

        if ((hashfd == -1) && ((opts & OPT_DONOTHING) == 0))
                hashfd = open(IPLOOKUP_NAME, O_RDWR);
        if ((hashfd == -1) && ((opts & OPT_DONOTHING) == 0))
                return -1;

        op.iplo_type = IPLT_HASH;
        op.iplo_unit = iphp->iph_unit;
        strncpy(op.iplo_name, iphp->iph_name, sizeof(op.iplo_name));
        if (*op.iplo_name == '\0')
                op.iplo_arg = IPHASH_ANON;
        op.iplo_size = sizeof(iph);
        op.iplo_struct = &iph;

        bzero((char *)&iph, sizeof(iph));
        iph.iph_unit = iphp->iph_unit;
        iph.iph_type = iphp->iph_type;
        strncpy(iph.iph_name, iphp->iph_name, sizeof(iph.iph_name));
        iph.iph_flags = iphp->iph_flags;

        if ((*iocfunc)(hashfd, SIOCLOOKUPDELTABLE, &op))
                if ((opts & OPT_DONOTHING) == 0) {
                        perror("remove_hash:SIOCLOOKUPDELTABLE");
                        return -1;
                }

        return 0;
}