1/* $NetBSD$ */ 2 3/* 4 * Copyright (c) 1983, 1993 5 * Regents of the University of California. All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 3. Neither the name of the University nor the names of its contributors 16 * may be used to endorse or promote products derived from this software 17 * without specific prior written permission. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 22 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 23 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 25 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 29 * SUCH DAMAGE. 30 */ 31 32#include <sys/cdefs.h> 33#if defined(LIBC_SCCS) && !defined(lint) 34#if 0 35static char sccsid[] = "@(#)closedir.c 8.1 (Berkeley) 6/10/93"; 36#else 37__RCSID("$NetBSD$"); 38#endif 39#endif /* LIBC_SCCS and not lint */ 40 41#include "namespace.h" 42#include "reentrant.h" 43#include "extern.h" 44#include <sys/types.h> 45 46#include <assert.h> 47#include <dirent.h> 48#include <errno.h> 49#include <stdlib.h> 50#include <unistd.h> 51 52#include "dirent_private.h" 53 54#ifdef __weak_alias 55__weak_alias(closedir,_closedir) 56#endif 57 58/* 59 * close a directory. 60 */ 61int 62closedir(DIR *dirp) 63{ 64 int fd; 65 66 _DIAGASSERT(dirp != NULL); 67 68#ifdef _REENTRANT 69 if (__isthreaded) 70 mutex_lock((mutex_t *)dirp->dd_lock); 71#endif 72 fd = dirp->dd_fd; 73 dirp->dd_fd = -1; 74 _finidir(dirp); 75 76#ifdef _REENTRANT 77 if (__isthreaded) { 78 mutex_unlock((mutex_t *)dirp->dd_lock); 79 mutex_destroy((mutex_t *)dirp->dd_lock); 80 free(dirp->dd_lock); 81 } 82#endif 83 free((void *)dirp); 84 return(close(fd)); 85} 86