1 /** @file 2 Close an open directory. 3 4 Copyright (c) 2010 - 2011, Intel Corporation. All rights reserved.<BR> 5 This program and the accompanying materials 6 are licensed and made available under the terms and conditions of the BSD License 7 which accompanies this distribution. The full text of the license may be found at 8 http://opensource.org/licenses/bsd-license.php 9 10 THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, 11 WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. 12 13 Copyright (c) 1983, 1993 14 Regents of the University of California. All rights reserved. 15 16 Redistribution and use in source and binary forms, with or without 17 modification, are permitted provided that the following conditions 18 are met: 19 1. Redistributions of source code must retain the above copyright 20 notice, this list of conditions and the following disclaimer. 21 2. Redistributions in binary form must reproduce the above copyright 22 notice, this list of conditions and the following disclaimer in the 23 documentation and/or other materials provided with the distribution. 24 3. Neither the name of the University nor the names of its contributors 25 may be used to endorse or promote products derived from this software 26 without specific prior written permission. 27 28 THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 29 ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 30 IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 31 ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 32 FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 33 DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 34 OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 35 HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 36 LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 37 OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 38 SUCH DAMAGE. 39 40 NetBSD: closedir.c,v 1.15 2006/05/17 20:36:50 christos Exp 41 closedir.c 8.1 (Berkeley) 6/10/93 42 **/ 43 #include <sys/cdefs.h> 44 45 #include <namespace.h> 46 #include <reentrant.h> 47 #include <extern.h> 48 #include <sys/types.h> 49 50 #include <assert.h> 51 #include <dirent.h> 52 #include <errno.h> 53 #include <stdlib.h> 54 #include <unistd.h> 55 56 #ifdef __weak_alias 57 __weak_alias(closedir,_closedir) 58 #endif 59 60 /* 61 * close a directory. 62 */ 63 int 64 closedir(DIR *dirp) 65 { 66 int fd; 67 68 _DIAGASSERT(dirp != NULL); 69 70 #ifdef _REENTRANT 71 if (__isthreaded) 72 mutex_lock((mutex_t *)dirp->dd_lock); 73 #endif 74 fd = dirp->dd_fd; 75 dirp->dd_fd = -1; 76 dirp->dd_loc = 0; 77 free(dirp->dd_buf); 78 79 #ifdef _REENTRANT 80 if (__isthreaded) { 81 mutex_unlock((mutex_t *)dirp->dd_lock); 82 mutex_destroy((mutex_t *)dirp->dd_lock); 83 free(dirp->dd_lock); 84 } 85 #endif 86 free((void *)dirp); 87 return(close(fd)); 88 } 89
