1/* $NetBSD: fclose.c,v 1.17 2010/01/11 20:39:29 joerg Exp $ */ 2 3/*- 4 * Copyright (c) 1990, 1993 5 * The Regents of the University of California. All rights reserved. 6 * 7 * This code is derived from software contributed to Berkeley by 8 * Chris Torek. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 3. Neither the name of the University nor the names of its contributors 19 * may be used to endorse or promote products derived from this software 20 * without specific prior written permission. 21 * 22 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 23 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 24 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 25 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 26 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 27 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 28 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 29 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 30 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 31 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 32 * SUCH DAMAGE. 33 */ 34 35#include <sys/cdefs.h> 36#if defined(LIBC_SCCS) && !defined(lint) 37#if 0 38static char sccsid[] = "@(#)fclose.c 8.1 (Berkeley) 6/4/93"; 39#endif 40__RCSID("$NetBSD: fclose.c,v 1.17 2010/01/11 20:39:29 joerg Exp $"); 41#endif /* LIBC_SCCS and not lint */ 42 43#include <assert.h> 44#include <errno.h> 45#include <stdio.h> 46#include <stdlib.h> 47#include <wchar.h> 48#include "reentrant.h" 49#include "local.h" 50 51int 52fclose(FILE *fp) 53{ 54 int r; 55 56 _DIAGASSERT(fp != NULL); 57 58 if (fp->_flags == 0) { /* not open! */ 59 errno = EBADF; 60 return EOF; 61 } 62 FLOCKFILE(fp); 63 WCIO_FREE(fp); 64 r = fp->_flags & __SWR ? __sflush(fp) : 0; 65 if (fp->_close != NULL && (*fp->_close)(fp->_cookie) < 0) 66 r = EOF; 67 if (fp->_flags & __SMBF) 68 free((char *)fp->_bf._base); 69 if (HASUB(fp)) 70 FREEUB(fp); 71 FREELB(fp); 72 FUNLOCKFILE(fp); 73 fp->_file = -1; 74 fp->_flags = 0; /* Release this FILE for reuse. */ 75 fp->_r = fp->_w = 0; /* Mess up if reaccessed. */ 76 return r; 77} 78