* Copyright (c) 2004 by Internet Systems Consortium, Inc. ("ISC")

/* $NetBSD: nul_ng.c,v 1.1.1.2 2012/09/09 16:07:51 christos Exp $ */

/*
* Copyright (c) 2004 by Internet Systems Consortium, Inc. ("ISC")
* Copyright (c) 1996,1999 by Internet Software Consortium.
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND ISC DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL ISC BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
* OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/

#if defined(LIBC_SCCS) && !defined(lint)
static const char rcsid[] = "Id: nul_ng.c,v 1.3 2005/04/27 04:56:34 sra Exp ";
#endif

/*! \file
* \brief
* nul_ng.c - the netgroup accessor null map
*/

#include "port_before.h"

#include <sys/types.h>
#include <netinet/in.h>
#include <arpa/nameser.h>
#include <resolv.h>

#include <stdio.h>
#include <string.h>
#include <netdb.h>
#include <ctype.h>
#include <stdlib.h>
#include <errno.h>

#include <irs.h>
#include <isc/memcluster.h>

#include "port_after.h"

#include "irs_p.h"
#include "hesiod.h"
#include "dns_p.h"

/* Forward. */

static void ng_close(struct irs_ng *);
static int ng_next(struct irs_ng *, const char **,
const char **, const char **);
static int ng_test(struct irs_ng *,
const char *, const char *,
const char *, const char *);
static void ng_rewind(struct irs_ng *, const char *);
static void ng_minimize(struct irs_ng *);

/* Public. */

struct irs_ng *
irs_nul_ng(struct irs_acc *this) {
struct irs_ng *ng;

UNUSED(this);

if (!(ng = memget(sizeof *ng))) {
errno = ENOMEM;
return (NULL);
}
memset(ng, 0x5e, sizeof *ng);
ng->private = NULL;
ng->close = ng_close;
ng->next = ng_next;
ng->test = ng_test;
ng->rewind = ng_rewind;
ng->minimize = ng_minimize;
return (ng);
}

/* Methods. */

static void
ng_close(struct irs_ng *this) {
memput(this, sizeof *this);
}

/* ARGSUSED */
static int
ng_next(struct irs_ng *this, const char **host, const char **user,
const char **domain)
{
UNUSED(this);
UNUSED(host);
UNUSED(user);
UNUSED(domain);
errno = ENOENT;
return (-1);
}

static int
ng_test(struct irs_ng *this, const char *name,
const char *user, const char *host, const char *domain)
{
UNUSED(this);
UNUSED(name);
UNUSED(user);
UNUSED(host);
UNUSED(domain);
errno = ENODEV;
return (-1);
}

static void
ng_rewind(struct irs_ng *this, const char *netgroup) {
UNUSED(this);
UNUSED(netgroup);
/* NOOP */
}

static void
ng_minimize(struct irs_ng *this) {
UNUSED(this);
/* NOOP */
}