text: /*
   * 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;
  }
  