2N/A/*
2N/A * CDDL HEADER START
2N/A *
2N/A * The contents of this file are subject to the terms of the
2N/A * Common Development and Distribution License (the "License").
2N/A * You may not use this file except in compliance with the License.
2N/A *
2N/A * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
2N/A * or http://www.opensolaris.org/os/licensing.
2N/A * See the License for the specific language governing permissions
2N/A * and limitations under the License.
2N/A *
2N/A * When distributing Covered Code, include this CDDL HEADER in each
2N/A * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
2N/A * If applicable, add the following below this CDDL HEADER, with the
2N/A * fields enclosed by brackets "[]" replaced with your own identifying
2N/A * information: Portions Copyright [yyyy] [name of copyright owner]
2N/A *
2N/A * CDDL HEADER END
2N/A */
2N/A
2N/A/*
2N/A * Copyright 2008 Sun Microsystems, Inc. All rights reserved.
2N/A * Use is subject to license terms.
2N/A */
2N/A
2N/A/* Copyright (c) 1988 AT&T */
2N/A/* All Rights Reserved */
2N/A
2N/A#pragma ident "%Z%%M% %I% %E% SMI"
2N/A
2N/A#pragma weak _getgrnam = getgrnam
2N/A#pragma weak _getgrgid = getgrgid
2N/A
2N/A#include "lint.h"
2N/A#include <sys/types.h>
2N/A#include <grp.h>
2N/A#include <nss_dbdefs.h>
2N/A#include <stdio.h>
2N/A#include "tsd.h"
2N/A
2N/A#ifdef NSS_INCLUDE_UNSAFE
2N/A
2N/Aextern size_t _nss_get_bufsizes(int arg);
2N/A
2N/A/*
2N/A * Ye olde non-reentrant interface (MT-unsafe, caveat utor)
2N/A */
2N/A
2N/Astatic void
2N/Afree_grbuf(void *arg)
2N/A{
2N/A nss_XbyY_buf_t **buffer = arg;
2N/A
2N/A NSS_XbyY_FREE(buffer);
2N/A}
2N/A
2N/Astatic nss_XbyY_buf_t *
2N/Aget_grbuf(int max_buf)
2N/A{
2N/A nss_XbyY_buf_t **buffer =
2N/A tsdalloc(_T_GRBUF, sizeof (nss_XbyY_buf_t *), free_grbuf);
2N/A nss_XbyY_buf_t *b;
2N/A size_t blen;
2N/A
2N/A if (buffer == NULL)
2N/A return (NULL);
2N/A if (max_buf == 0)
2N/A blen = _nss_get_bufsizes(0); /* default size */
2N/A else
2N/A blen = sysconf(_SC_GETGR_R_SIZE_MAX); /* max size */
2N/A if (*buffer) {
2N/A if ((*buffer)->buflen >= blen) /* existing size fits */
2N/A return (*buffer);
2N/A NSS_XbyY_FREE(buffer); /* existing is too small */
2N/A }
2N/A b = NSS_XbyY_ALLOC(buffer, sizeof (struct group), blen);
2N/A return (b);
2N/A}
2N/A
2N/Astruct group *
2N/Agetgrgid(gid_t gid)
2N/A{
2N/A nss_XbyY_buf_t *b = get_grbuf(0);
2N/A struct group *ret;
2N/A
2N/A if (b == NULL)
2N/A return (NULL);
2N/A
2N/A ret = getgrgid_r(gid, b->result, b->buffer, b->buflen);
2N/A if (ret == NULL && errno == ERANGE) {
2N/A b = get_grbuf(1);
2N/A if (b == NULL)
2N/A return (NULL);
2N/A ret = getgrgid_r(gid, b->result, b->buffer, b->buflen);
2N/A }
2N/A return (ret);
2N/A}
2N/A
2N/Astruct group *
2N/Agetgrnam(const char *nam)
2N/A{
2N/A nss_XbyY_buf_t *b = get_grbuf(0);
2N/A struct group *ret;
2N/A
2N/A if (b == NULL)
2N/A return (NULL);
2N/A
2N/A ret = getgrnam_r(nam, b->result, b->buffer, b->buflen);
2N/A if (ret == NULL && errno == ERANGE && nam != NULL) {
2N/A b = get_grbuf(1);
2N/A if (b == NULL)
2N/A return (NULL);
2N/A ret = getgrnam_r(nam, b->result, b->buffer, b->buflen);
2N/A }
2N/A return (ret);
2N/A}
2N/A
2N/Astruct group *
2N/Agetgrent(void)
2N/A{
2N/A nss_XbyY_buf_t *b = get_grbuf(1);
2N/A
2N/A return (b == NULL ? NULL :
2N/A getgrent_r(b->result, b->buffer, b->buflen));
2N/A}
2N/A
2N/Astruct group *
2N/Afgetgrent(FILE *f)
2N/A{
2N/A nss_XbyY_buf_t *b = get_grbuf(1);
2N/A
2N/A return (b == NULL ? NULL :
2N/A fgetgrent_r(f, b->result, b->buffer, b->buflen));
2N/A}
2N/A
2N/A#endif /* NSS_INCLUDE_UNSAFE */