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      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 (the "License").
      6  * You may not use this file except in compliance with the License.
      7  *
      8  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
      9  * or http://www.opensolaris.org/os/licensing.
     10  * See the License for the specific language governing permissions
     11  * and limitations under the License.
     12  *
     13  * When distributing Covered Code, include this CDDL HEADER in each
     14  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
     15  * If applicable, add the following below this CDDL HEADER, with the
     16  * fields enclosed by brackets "[]" replaced with your own identifying
     17  * information: Portions Copyright [yyyy] [name of copyright owner]
     18  *
     19  * CDDL HEADER END
     20  */
     21 
     22 /*
     23  * Copyright 2008 Sun Microsystems, Inc.  All rights reserved.
     24  * Use is subject to license terms.
     25  */
     26 
     27 /*	Copyright (c) 1988 AT&T	*/
     28 /*	  All Rights Reserved  	*/
     29 
     30 #pragma ident	"%Z%%M%	%I%	%E% SMI"
     31 
     32 /*
     33  * closedir -- C library extension routine
     34  *
     35  * We use lmalloc()/lfree() rather than malloc()/free() in
     36  * order to allow opendir()/readdir()/closedir() to be called
     37  * while holding internal libc locks.
     38  */
     39 
     40 #pragma weak _closedir = closedir
     41 
     42 #include "lint.h"
     43 #include <dirent.h>
     44 #include <stdlib.h>
     45 #include <unistd.h>
     46 #include "libc.h"
     47 
     48 int
     49 closedir(DIR *dirp)
     50 {
     51 	private_DIR *pdirp = (private_DIR *)(uintptr_t)dirp;
     52 	int fd = dirp->dd_fd;
     53 
     54 	(void) mutex_destroy(&pdirp->dd_lock);
     55 	lfree(dirp->dd_buf, DIRBUF);
     56 	lfree(pdirp, sizeof (*pdirp));
     57 	return (close(fd));
     58 }
     59