NetBSD-5.0.2/dist/ipf/lib/remove_hashnode.c

/*	$NetBSD: remove_hashnode.c,v 1.1.1.2 2007/04/14 20:17:31 martin Exp $	*/

/*
 * Copyright (C) 2003 by Darren Reed.
 *
 * See the IPFILTER.LICENCE file for details on licencing.
 *
 * Id: remove_hashnode.c,v 1.1.4.1 2006/06/16 17:21:16 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;
}