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

/* $NetBSD: nis.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: nis.c,v 1.3 2005/04/27 04:56:32 sra Exp ";
#endif

/* Imports */

#include "port_before.h"

#ifdef WANT_IRS_NIS

#include <rpc/rpc.h>
#include <rpc/xdr.h>
#include <rpcsvc/yp_prot.h>
#include <rpcsvc/ypclnt.h>

#include <stdlib.h>
#include <string.h>
#include <errno.h>

#include <sys/types.h>
#include <netinet/in.h>
#ifdef T_NULL
#undef T_NULL /* Silence re-definition warning of T_NULL. */
#endif
#include <arpa/nameser.h>
#include <resolv.h>

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

#include "port_after.h"

#include "irs_p.h"
#include "hesiod.h"
#include "nis_p.h"

/* Forward */

static void nis_close(struct irs_acc *);
static struct __res_state * nis_res_get(struct irs_acc *);
static void nis_res_set(struct irs_acc *, struct __res_state *,
void (*)(void *));

/* Public */

struct irs_acc *
irs_nis_acc(const char *options) {
struct nis_p *nis;
struct irs_acc *acc;
char *domain;

UNUSED(options);

if (yp_get_default_domain(&domain) != 0)
return (NULL);
if (!(nis = memget(sizeof *nis))) {
errno = ENOMEM;
return (NULL);
}
memset(nis, 0, sizeof *nis);
if (!(acc = memget(sizeof *acc))) {
memput(nis, sizeof *nis);
errno = ENOMEM;
return (NULL);
}
memset(acc, 0x5e, sizeof *acc);
acc->private = nis;
nis->domain = strdup(domain);
#ifdef WANT_IRS_GR
acc->gr_map = irs_nis_gr;
#else
acc->gr_map = NULL;
#endif
#ifdef WANT_IRS_PW
acc->pw_map = irs_nis_pw;
#else
acc->pw_map = NULL;
#endif
acc->sv_map = irs_nis_sv;
acc->pr_map = irs_nis_pr;
acc->ho_map = irs_nis_ho;
acc->nw_map = irs_nis_nw;
acc->ng_map = irs_nis_ng;
acc->res_get = nis_res_get;
acc->res_set = nis_res_set;
acc->close = nis_close;
return (acc);
}

/* Methods */

static struct __res_state *
nis_res_get(struct irs_acc *this) {
struct nis_p *nis = (struct nis_p *)this->private;

if (nis->res == NULL) {
struct __res_state *res;
res = (struct __res_state *)malloc(sizeof *res);
if (res == NULL)
return (NULL);
memset(res, 0, sizeof *res);
nis_res_set(this, res, free);
}

if ((nis->res->options & RES_INIT) == 0 &&
res_ninit(nis->res) < 0)
return (NULL);

return (nis->res);
}

static void
nis_res_set(struct irs_acc *this, struct __res_state *res,
void (*free_res)(void *)) {
struct nis_p *nis = (struct nis_p *)this->private;

if (nis->res && nis->free_res) {
res_nclose(nis->res);
(*nis->free_res)(nis->res);
}

nis->res = res;
nis->free_res = free_res;
}

static void
nis_close(struct irs_acc *this) {
struct nis_p *nis = (struct nis_p *)this->private;

if (nis->res && nis->free_res)
(*nis->free_res)(nis->res);
free(nis->domain);
memput(nis, sizeof *nis);
memput(this, sizeof *this);
}

#endif /*WANT_IRS_NIS*/

/*! \file */