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