root/usr/src/cmd/ipf/lib/remove_hashnode.c
/*
 * Copyright (C) 2002 by Darren Reed.
 *
 * See the IPFILTER.LICENCE file for details on licencing.
 *
 * $Id: remove_hashnode.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_hashnode(unit, name, node, iocfunc)
int unit;
char *name;
iphtent_t *node;
ioctlfunc_t iocfunc;
{
        iplookupop_t op;
        iphtent_t ipe;

        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 = unit;
        op.iplo_size = sizeof(ipe);
        op.iplo_struct = &ipe;
        op.iplo_arg = 0;
        strncpy(op.iplo_name, name, sizeof(op.iplo_name));

        bzero((char *)&ipe, sizeof(ipe));
        bcopy((char *)&node->ipe_addr, (char *)&ipe.ipe_addr,
              sizeof(ipe.ipe_addr));
        bcopy((char *)&node->ipe_mask, (char *)&ipe.ipe_mask,
              sizeof(ipe.ipe_mask));

        if (opts & OPT_DEBUG) {
                printf("\t%s - ", inet_ntoa(ipe.ipe_addr.in4));
                printf("%s\n", inet_ntoa(ipe.ipe_mask.in4));
        }

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