1 /* 2 * CDDL HEADER START 3 * 4 * The contents of this file are subject to the terms of the 5 * Common Development and Distribution License, Version 1.0 only 6 * (the "License"). You may not use this file except in compliance 7 * with the License. 8 * 9 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 10 * or http://www.opensolaris.org/os/licensing. 11 * See the License for the specific language governing permissions 12 * and limitations under the License. 13 * 14 * When distributing Covered Code, include this CDDL HEADER in each 15 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 16 * If applicable, add the following below this CDDL HEADER, with the 17 * fields enclosed by brackets "[]" replaced with your own identifying 18 * information: Portions Copyright [yyyy] [name of copyright owner] 19 * 20 * CDDL HEADER END 21 */ 22 /* 23 * Copyright 2004 Sun Microsystems, Inc. All rights reserved. 24 * Use is subject to license terms. 25 */ 26 27 #pragma ident "%Z%%M% %I% %E% SMI" 28 29 /* Copyright (c) 1988 AT&T */ 30 /* All Rights Reserved */ 31 32 33 /* 34 * opendir -- C library extension routine 35 * 36 * We use lmalloc()/lfree() rather than malloc()/free() in 37 * order to allow opendir()/readdir()/closedir() to be called 38 * while holding internal libc locks. 39 */ 40 41 #pragma weak opendir = _opendir 42 43 #include "synonyms.h" 44 #include <sys/types.h> 45 #include <dirent.h> 46 #include <stdlib.h> 47 #include <unistd.h> 48 #include <fcntl.h> 49 #include <synch.h> 50 51 mutex_t _dirent_lock = DEFAULTMUTEX; 52 53 DIR * 54 opendir(const char *filename) 55 { 56 int fd; 57 DIR *dirp; 58 59 if ((fd = openat(AT_FDCWD, filename, 60 O_RDONLY | O_NDELAY | O_LARGEFILE, 0)) < 0) 61 return (NULL); 62 if ((dirp = fdopendir(fd)) == NULL) 63 (void) close(fd); 64 return (dirp); 65 } 66