/* $NetBSD: closedir.c,v 1.16 2010/09/26 02:26:59 yamt Exp $ */ /* * Copyright (c) 1983, 1993 * Regents of the University of California. All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. Neither the name of the University nor the names of its contributors * may be used to endorse or promote products derived from this software * without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. */ #include <sys/cdefs.h> #if defined(LIBC_SCCS) && !defined(lint) #if 0 static char sccsid[] = "@(#)closedir.c 8.1 (Berkeley) 6/10/93"; #else __RCSID("$NetBSD: closedir.c,v 1.16 2010/09/26 02:26:59 yamt Exp $"); #endif #endif /* LIBC_SCCS and not lint */ #include "namespace.h" #include "reentrant.h" #include "extern.h" #include <sys/types.h> #include <assert.h> #include <dirent.h> #include <errno.h> #include <stdlib.h> #include <unistd.h> #include "dirent_private.h" #ifdef __weak_alias __weak_alias(closedir,_closedir) #endif /* * close a directory. */ int closedir(DIR *dirp) { int fd; _DIAGASSERT(dirp != NULL); #ifdef _REENTRANT if (__isthreaded) mutex_lock((mutex_t *)dirp->dd_lock); #endif fd = dirp->dd_fd; dirp->dd_fd = -1; _finidir(dirp); #ifdef _REENTRANT if (__isthreaded) { mutex_unlock((mutex_t *)dirp->dd_lock); mutex_destroy((mutex_t *)dirp->dd_lock); free(dirp->dd_lock); } #endif free((void *)dirp); return(close(fd)); } |