10Sstevel@tonic-gate /* 20Sstevel@tonic-gate * CDDL HEADER START 30Sstevel@tonic-gate * 40Sstevel@tonic-gate * The contents of this file are subject to the terms of the 5*6279Sdjl * Common Development and Distribution License (the "License"). 6*6279Sdjl * You may not use this file except in compliance with the License. 70Sstevel@tonic-gate * 80Sstevel@tonic-gate * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 90Sstevel@tonic-gate * or http://www.opensolaris.org/os/licensing. 100Sstevel@tonic-gate * See the License for the specific language governing permissions 110Sstevel@tonic-gate * and limitations under the License. 120Sstevel@tonic-gate * 130Sstevel@tonic-gate * When distributing Covered Code, include this CDDL HEADER in each 140Sstevel@tonic-gate * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 150Sstevel@tonic-gate * If applicable, add the following below this CDDL HEADER, with the 160Sstevel@tonic-gate * fields enclosed by brackets "[]" replaced with your own identifying 170Sstevel@tonic-gate * information: Portions Copyright [yyyy] [name of copyright owner] 180Sstevel@tonic-gate * 190Sstevel@tonic-gate * CDDL HEADER END 200Sstevel@tonic-gate */ 210Sstevel@tonic-gate /* 22*6279Sdjl * Copyright 2008 Sun Microsystems, Inc. All rights reserved. 230Sstevel@tonic-gate * Use is subject to license terms. 240Sstevel@tonic-gate */ 250Sstevel@tonic-gate 260Sstevel@tonic-gate #pragma ident "%Z%%M% %I% %E% SMI" 270Sstevel@tonic-gate 280Sstevel@tonic-gate /* Copyright (c) 1988 AT&T */ 290Sstevel@tonic-gate /* All Rights Reserved */ 300Sstevel@tonic-gate 310Sstevel@tonic-gate 320Sstevel@tonic-gate /* 3.0 SID # 1.2 */ 330Sstevel@tonic-gate 340Sstevel@tonic-gate #pragma weak getgrnam = _getgrnam 350Sstevel@tonic-gate #pragma weak getgrgid = _getgrgid 360Sstevel@tonic-gate #pragma weak getgrent = _getgrent 370Sstevel@tonic-gate #pragma weak fgetgrent = _fgetgrent 380Sstevel@tonic-gate 390Sstevel@tonic-gate #include "synonyms.h" 400Sstevel@tonic-gate #include <sys/types.h> 410Sstevel@tonic-gate #include <grp.h> 420Sstevel@tonic-gate #include <nss_dbdefs.h> 430Sstevel@tonic-gate #include <stdio.h> 440Sstevel@tonic-gate #include "tsd.h" 450Sstevel@tonic-gate 460Sstevel@tonic-gate #ifdef NSS_INCLUDE_UNSAFE 470Sstevel@tonic-gate 48*6279Sdjl extern size_t _nss_get_bufsizes(int arg); 49*6279Sdjl 500Sstevel@tonic-gate /* 510Sstevel@tonic-gate * Ye olde non-reentrant interface (MT-unsafe, caveat utor) 520Sstevel@tonic-gate */ 530Sstevel@tonic-gate 540Sstevel@tonic-gate static void 550Sstevel@tonic-gate free_grbuf(void *arg) 560Sstevel@tonic-gate { 570Sstevel@tonic-gate nss_XbyY_buf_t **buffer = arg; 580Sstevel@tonic-gate 590Sstevel@tonic-gate NSS_XbyY_FREE(buffer); 600Sstevel@tonic-gate } 610Sstevel@tonic-gate 620Sstevel@tonic-gate static nss_XbyY_buf_t * 63*6279Sdjl get_grbuf(int max_buf) 640Sstevel@tonic-gate { 650Sstevel@tonic-gate nss_XbyY_buf_t **buffer = 660Sstevel@tonic-gate tsdalloc(_T_GRBUF, sizeof (nss_XbyY_buf_t *), free_grbuf); 670Sstevel@tonic-gate nss_XbyY_buf_t *b; 68*6279Sdjl size_t blen; 690Sstevel@tonic-gate 700Sstevel@tonic-gate if (buffer == NULL) 710Sstevel@tonic-gate return (NULL); 72*6279Sdjl if (max_buf == 0) 73*6279Sdjl blen = _nss_get_bufsizes(0); /* default size */ 74*6279Sdjl else 75*6279Sdjl blen = sysconf(_SC_GETGR_R_SIZE_MAX); /* max size */ 76*6279Sdjl if (*buffer) { 77*6279Sdjl if ((*buffer)->buflen >= blen) /* existing size fits */ 78*6279Sdjl return (*buffer); 79*6279Sdjl NSS_XbyY_FREE(buffer); /* existing is too small */ 80*6279Sdjl } 81*6279Sdjl b = NSS_XbyY_ALLOC(buffer, sizeof (struct group), blen); 820Sstevel@tonic-gate return (b); 830Sstevel@tonic-gate } 840Sstevel@tonic-gate 850Sstevel@tonic-gate struct group * 860Sstevel@tonic-gate getgrgid(gid_t gid) 870Sstevel@tonic-gate { 88*6279Sdjl nss_XbyY_buf_t *b = get_grbuf(0); 89*6279Sdjl struct group *ret; 90*6279Sdjl 91*6279Sdjl if (b == NULL) 92*6279Sdjl return (NULL); 930Sstevel@tonic-gate 94*6279Sdjl ret = getgrgid_r(gid, b->result, b->buffer, b->buflen); 95*6279Sdjl if (ret == NULL && errno == ERANGE) { 96*6279Sdjl b = get_grbuf(1); 97*6279Sdjl if (b == NULL) 98*6279Sdjl return (NULL); 99*6279Sdjl ret = getgrgid_r(gid, b->result, b->buffer, b->buflen); 100*6279Sdjl } 101*6279Sdjl return (ret); 1020Sstevel@tonic-gate } 1030Sstevel@tonic-gate 1040Sstevel@tonic-gate struct group * 1050Sstevel@tonic-gate getgrnam(const char *nam) 1060Sstevel@tonic-gate { 107*6279Sdjl nss_XbyY_buf_t *b = get_grbuf(0); 108*6279Sdjl struct group *ret; 109*6279Sdjl 110*6279Sdjl if (b == NULL) 111*6279Sdjl return (NULL); 1120Sstevel@tonic-gate 113*6279Sdjl ret = getgrnam_r(nam, b->result, b->buffer, b->buflen); 114*6279Sdjl if (ret == NULL && errno == ERANGE && nam != NULL) { 115*6279Sdjl b = get_grbuf(1); 116*6279Sdjl if (b == NULL) 117*6279Sdjl return (NULL); 118*6279Sdjl ret = getgrnam_r(nam, b->result, b->buffer, b->buflen); 119*6279Sdjl } 120*6279Sdjl return (ret); 1210Sstevel@tonic-gate } 1220Sstevel@tonic-gate 1230Sstevel@tonic-gate struct group * 1240Sstevel@tonic-gate getgrent(void) 1250Sstevel@tonic-gate { 126*6279Sdjl nss_XbyY_buf_t *b = get_grbuf(1); 1270Sstevel@tonic-gate 1280Sstevel@tonic-gate return (b == NULL ? NULL : 1290Sstevel@tonic-gate getgrent_r(b->result, b->buffer, b->buflen)); 1300Sstevel@tonic-gate } 1310Sstevel@tonic-gate 1320Sstevel@tonic-gate struct group * 1330Sstevel@tonic-gate fgetgrent(FILE *f) 1340Sstevel@tonic-gate { 135*6279Sdjl nss_XbyY_buf_t *b = get_grbuf(1); 1360Sstevel@tonic-gate 1370Sstevel@tonic-gate return (b == NULL ? NULL : 1380Sstevel@tonic-gate fgetgrent_r(f, b->result, b->buffer, b->buflen)); 1390Sstevel@tonic-gate } 1400Sstevel@tonic-gate 1410Sstevel@tonic-gate #endif /* NSS_INCLUDE_UNSAFE */ 142