8500b0caba
* nis/nss_nis/nis-netgrp.c: Remove locking by using data in struct __netgrent object passed in instead of global variables. Optimize. * nis/nss_nisplus/nisplus-netgrp.c: Remove locking by using data in struct __netgrent object passed in instead of global variables. * inet/netgroup.h (struct __netgrent): Add service_user field. Move cursor in anonymous union, add new field location to that union. * inet/getnetgrent_r.c: Extensive rewrite to really enable concurrent uset of set/get/endnetgrent and innetgr.
108 lines
2.8 KiB
C
108 lines
2.8 KiB
C
/* Copyright (C) 1996,1997,1999,2000,2002,2003,2004
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Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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Contributed by Thorsten Kukuk <kukuk@suse.de>, 1996.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, write to the Free
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Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
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02111-1307 USA. */
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#include <assert.h>
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#include <ctype.h>
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#include <errno.h>
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#include <malloc.h>
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#include <netdb.h>
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#include <nss.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <netgroup.h>
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#include <rpcsvc/yp.h>
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#include <rpcsvc/ypclnt.h>
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#include "nss-nis.h"
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extern enum nss_status
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_nss_netgroup_parseline (char **cursor, struct __netgrent *netgrp,
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char *buffer, size_t buflen, int *errnop);
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static void
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internal_nis_endnetgrent (struct __netgrent *netgrp)
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{
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if (netgrp->data != NULL)
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{
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free (netgrp->data);
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netgrp->data = NULL;
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netgrp->data_size = 0;
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netgrp->cursor = NULL;
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}
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}
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enum nss_status
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_nss_nis_setnetgrent (const char *group, struct __netgrent *netgrp)
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{
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char *domain;
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int len;
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enum nss_status status;
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status = NSS_STATUS_SUCCESS;
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if (group == NULL || group[0] == '\0')
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return NSS_STATUS_UNAVAIL;
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if (yp_get_default_domain (&domain))
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return NSS_STATUS_UNAVAIL;
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internal_nis_endnetgrent (netgrp);
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status = yperr2nss (yp_match (domain, "netgroup", group, strlen (group),
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&netgrp->data, &len));
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if (status == NSS_STATUS_SUCCESS)
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{
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/* Our implementation of yp_match already allocates a buffer
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which is one byte larger than the value in LEN specifies
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and the last byte is filled with NUL. So we can simply
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use that buffer. */
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assert (len > 0);
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assert (malloc_usable_size (netgrp->data) >= len + 1);
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assert (netgrp->data[len] == '\0');
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netgrp->data_size = len;
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netgrp->cursor = netgrp->data;
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}
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return status;
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}
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enum nss_status
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_nss_nis_endnetgrent (struct __netgrent *netgrp)
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{
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internal_nis_endnetgrent (netgrp);
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return NSS_STATUS_SUCCESS;
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}
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enum nss_status
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_nss_nis_getnetgrent_r (struct __netgrent *result, char *buffer, size_t buflen,
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int *errnop)
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{
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if (result->cursor == NULL)
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return NSS_STATUS_NOTFOUND;
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return _nss_netgroup_parseline (&result->cursor, result, buffer, buflen,
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errnop);
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}
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