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/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License (the "License").
* You may not use this file except in compliance with the License.
*
* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
* or http://www.opensolaris.org/os/licensing.
* See the License for the specific language governing permissions
* and limitations under the License.
*
* When distributing Covered Code, include this CDDL HEADER in each
* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
* If applicable, add the following below this CDDL HEADER, with the
* fields enclosed by brackets "[]" replaced with your own identifying
* information: Portions Copyright [yyyy] [name of copyright owner]
*
* CDDL HEADER END
*/
/*
* Copyright 2008 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*/
/* Copyright (c) 1988 AT&T */
/* All Rights Reserved */
#pragma ident "%Z%%M% %I% %E% SMI"
#pragma weak _getgrnam = getgrnam
#pragma weak _getgrgid = getgrgid
#include "lint.h"
#include <sys/types.h>
#include <grp.h>
#include <nss_dbdefs.h>
#include <stdio.h>
#include "tsd.h"
#ifdef NSS_INCLUDE_UNSAFE
extern size_t _nss_get_bufsizes(int arg);
/*
* Ye olde non-reentrant interface (MT-unsafe, caveat utor)
*/
static void
free_grbuf(void *arg)
{
nss_XbyY_buf_t **buffer = arg;
NSS_XbyY_FREE(buffer);
}
static nss_XbyY_buf_t *
get_grbuf(int max_buf)
{
nss_XbyY_buf_t **buffer =
tsdalloc(_T_GRBUF, sizeof (nss_XbyY_buf_t *), free_grbuf);
nss_XbyY_buf_t *b;
size_t blen;
if (buffer == NULL)
return (NULL);
if (max_buf == 0)
blen = _nss_get_bufsizes(0); /* default size */
else
blen = sysconf(_SC_GETGR_R_SIZE_MAX); /* max size */
if (*buffer) {
if ((*buffer)->buflen >= blen) /* existing size fits */
return (*buffer);
NSS_XbyY_FREE(buffer); /* existing is too small */
}
b = NSS_XbyY_ALLOC(buffer, sizeof (struct group), blen);
return (b);
}
struct group *
getgrgid(gid_t gid)
{
nss_XbyY_buf_t *b = get_grbuf(0);
struct group *ret;
if (b == NULL)
return (NULL);
ret = getgrgid_r(gid, b->result, b->buffer, b->buflen);
if (ret == NULL && errno == ERANGE) {
b = get_grbuf(1);
if (b == NULL)
return (NULL);
ret = getgrgid_r(gid, b->result, b->buffer, b->buflen);
}
return (ret);
}
struct group *
getgrnam(const char *nam)
{
nss_XbyY_buf_t *b = get_grbuf(0);
struct group *ret;
if (b == NULL)
return (NULL);
ret = getgrnam_r(nam, b->result, b->buffer, b->buflen);
if (ret == NULL && errno == ERANGE && nam != NULL) {
b = get_grbuf(1);
if (b == NULL)
return (NULL);
ret = getgrnam_r(nam, b->result, b->buffer, b->buflen);
}
return (ret);
}
struct group *
getgrent(void)
{
nss_XbyY_buf_t *b = get_grbuf(1);
return (b == NULL ? NULL :
getgrent_r(b->result, b->buffer, b->buflen));
}
struct group *
fgetgrent(FILE *f)
{
nss_XbyY_buf_t *b = get_grbuf(1);
return (b == NULL ? NULL :
fgetgrent_r(f, b->result, b->buffer, b->buflen));
}
#endif /* NSS_INCLUDE_UNSAFE */
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