mirror of
git://sourceware.org/git/glibc.git
synced 2024-12-03 04:01:43 +08:00
192 lines
5.0 KiB
C
192 lines
5.0 KiB
C
/* Copyright (C) 1997-2016 Free Software Foundation, Inc.
|
|
This file is part of the GNU C Library.
|
|
Contributed by Thorsten Kukuk <kukuk@vt.uni-paderborn.de>, 1997.
|
|
|
|
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
|
|
<http://www.gnu.org/licenses/>. */
|
|
|
|
#include <nss.h>
|
|
#include <errno.h>
|
|
#include <ctype.h>
|
|
#include <netdb.h>
|
|
#include <string.h>
|
|
#include <netgroup.h>
|
|
#include <rpcsvc/nis.h>
|
|
|
|
#include "nss-nisplus.h"
|
|
|
|
#define NISENTRYVAL(idx, col, res) \
|
|
(NIS_RES_OBJECT (res)[idx].EN_data.en_cols.en_cols_val[col].ec_value.ec_value_val)
|
|
|
|
#define NISENTRYLEN(idx, col, res) \
|
|
(NIS_RES_OBJECT (res)[idx].EN_data.en_cols.en_cols_val[col].ec_value.ec_value_len)
|
|
|
|
enum nss_status
|
|
_nss_nisplus_getnetgrent_r (struct __netgrent *result, char *buffer,
|
|
size_t buflen, int *errnop)
|
|
{
|
|
enum nss_status status;
|
|
|
|
/* Some sanity checks. */
|
|
if (result->data == NULL || result->data_size == 0)
|
|
return NSS_STATUS_NOTFOUND;
|
|
|
|
if (result->position == result->data_size)
|
|
return result->first ? NSS_STATUS_NOTFOUND : NSS_STATUS_RETURN;
|
|
|
|
unsigned int entrylen
|
|
= NISENTRYLEN (result->position, 1, (nis_result *) result->data);
|
|
if (entrylen > 0)
|
|
{
|
|
/* We have a list of other netgroups. */
|
|
|
|
result->type = group_val;
|
|
if (entrylen >= buflen)
|
|
{
|
|
*errnop = ERANGE;
|
|
return NSS_STATUS_TRYAGAIN;
|
|
}
|
|
strncpy (buffer, NISENTRYVAL (result->position, 1,
|
|
(nis_result *) result->data),
|
|
entrylen);
|
|
buffer[entrylen] = '\0';
|
|
result->val.group = buffer;
|
|
++result->position;
|
|
result->first = 0;
|
|
|
|
return NSS_STATUS_SUCCESS;
|
|
}
|
|
|
|
/* Before we can copy the entry to the private buffer we have to make
|
|
sure it is big enough. */
|
|
unsigned int hostlen
|
|
= NISENTRYLEN (result->position, 2, (nis_result *) result->data);
|
|
unsigned int userlen
|
|
= NISENTRYLEN (result->position, 3, (nis_result *) result->data);
|
|
unsigned int domainlen
|
|
= NISENTRYLEN (result->position, 4, (nis_result *) result->data);
|
|
if (hostlen + userlen + domainlen + 6 > buflen)
|
|
{
|
|
*errnop = ERANGE;
|
|
status = NSS_STATUS_TRYAGAIN;
|
|
}
|
|
else
|
|
{
|
|
char *cp = buffer;
|
|
|
|
result->type = triple_val;
|
|
|
|
if (hostlen == 0 ||
|
|
NISENTRYVAL (result->position, 2,
|
|
(nis_result *) result->data)[0] == '\0')
|
|
result->val.triple.host = NULL;
|
|
else
|
|
{
|
|
result->val.triple.host = cp;
|
|
cp = __stpncpy (cp, NISENTRYVAL (result->position, 2,
|
|
(nis_result *) result->data),
|
|
hostlen);
|
|
*cp++ = '\0';
|
|
}
|
|
|
|
if (userlen == 0 ||
|
|
NISENTRYVAL (result->position, 3,
|
|
(nis_result *) result->data)[0] == '\0')
|
|
result->val.triple.user = NULL;
|
|
else
|
|
{
|
|
result->val.triple.user = cp;
|
|
cp = __stpncpy (cp, NISENTRYVAL (result->position, 3,
|
|
(nis_result *) result->data),
|
|
userlen);
|
|
*cp++ = '\0';
|
|
}
|
|
|
|
if (domainlen == 0 ||
|
|
NISENTRYVAL (result->position, 4,
|
|
(nis_result *) result->data)[0] == '\0')
|
|
result->val.triple.domain = NULL;
|
|
else
|
|
{
|
|
result->val.triple.domain = cp;
|
|
cp = __stpncpy (cp, NISENTRYVAL (result->position, 4,
|
|
(nis_result *) result->data),
|
|
domainlen);
|
|
*cp = '\0';
|
|
}
|
|
|
|
status = NSS_STATUS_SUCCESS;
|
|
|
|
/* Remember where we stopped reading. */
|
|
++result->position;
|
|
|
|
result->first = 0;
|
|
}
|
|
|
|
return status;
|
|
}
|
|
|
|
static void
|
|
internal_endnetgrent (struct __netgrent *netgrp)
|
|
{
|
|
nis_freeresult ((nis_result *) netgrp->data);
|
|
netgrp->data = NULL;
|
|
netgrp->data_size = 0;
|
|
netgrp->position = 0;
|
|
}
|
|
|
|
enum nss_status
|
|
_nss_nisplus_setnetgrent (const char *group, struct __netgrent *netgrp)
|
|
{
|
|
char buf[strlen (group) + 25];
|
|
|
|
if (group == NULL || group[0] == '\0')
|
|
return NSS_STATUS_UNAVAIL;
|
|
|
|
enum nss_status status = NSS_STATUS_SUCCESS;
|
|
|
|
snprintf (buf, sizeof (buf), "[name=%s],netgroup.org_dir", group);
|
|
|
|
netgrp->data = (char *) nis_list (buf, EXPAND_NAME, NULL, NULL);
|
|
|
|
if (netgrp->data == NULL)
|
|
{
|
|
__set_errno (ENOMEM);
|
|
status = NSS_STATUS_TRYAGAIN;
|
|
}
|
|
else if (niserr2nss (((nis_result *) netgrp->data)->status)
|
|
!= NSS_STATUS_SUCCESS)
|
|
{
|
|
status = niserr2nss (((nis_result *) netgrp->data)->status);
|
|
|
|
internal_endnetgrent (netgrp);
|
|
}
|
|
else
|
|
{
|
|
netgrp->data_size = ((nis_result *) netgrp->data)->objects.objects_len;
|
|
netgrp->position = 0;
|
|
netgrp->first = 1;
|
|
}
|
|
|
|
return status;
|
|
}
|
|
|
|
enum nss_status
|
|
_nss_nisplus_endnetgrent (struct __netgrent *netgrp)
|
|
{
|
|
internal_endnetgrent (netgrp);
|
|
|
|
return NSS_STATUS_SUCCESS;
|
|
}
|