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/* Copyright (C) 1996-2020 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Thorsten Kukuk <kukuk@suse.de>, 1996.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library; if not, see
<https://www.gnu.org/licenses/>. */
#include <assert.h>
#include <ctype.h>
#include <errno.h>
#include <malloc.h>
#include <netdb.h>
#include <nss.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <netgroup.h>
#include <rpcsvc/yp.h>
#include <rpcsvc/ypclnt.h>
#include "nss-nis.h"
extern enum nss_status
_nss_netgroup_parseline (char **cursor, struct __netgrent *netgrp,
char *buffer, size_t buflen, int *errnop);
static void
internal_nis_endnetgrent (struct __netgrent *netgrp)
{
free (netgrp->data);
netgrp->data = NULL;
netgrp->data_size = 0;
netgrp->cursor = NULL;
}
enum nss_status
_nss_nis_setnetgrent (const char *group, struct __netgrent *netgrp)
{
int len;
enum nss_status status;
status = NSS_STATUS_SUCCESS;
if (__glibc_unlikely (group == NULL || group[0] == '\0'))
return NSS_STATUS_UNAVAIL;
char *domain;
if (__glibc_unlikely (yp_get_default_domain (&domain)))
return NSS_STATUS_UNAVAIL;
status = yperr2nss (yp_match (domain, "netgroup", group, strlen (group),
&netgrp->data, &len));
if (__glibc_likely (status == NSS_STATUS_SUCCESS))
{
/* Our implementation of yp_match already allocates a buffer
which is one byte larger than the value in LEN specifies
and the last byte is filled with NUL. So we can simply
use that buffer. */
assert (len >= 0);
assert (netgrp->data[len] == '\0');
netgrp->data_size = len;
netgrp->cursor = netgrp->data;
}
return status;
}
enum nss_status
_nss_nis_endnetgrent (struct __netgrent *netgrp)
{
internal_nis_endnetgrent (netgrp);
return NSS_STATUS_SUCCESS;
}
enum nss_status
_nss_nis_getnetgrent_r (struct __netgrent *result, char *buffer, size_t buflen,
int *errnop)
{
return _nss_netgroup_parseline (&result->cursor, result, buffer, buflen,
errnop);
}
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