1 /*- 2 * Copyright (c) 1990 The Regents of the University of California. 3 * All rights reserved. 4 * 5 * This code is derived from software contributed to Berkeley by 6 * Chris Torek. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 3. All advertising materials mentioning features or use of this software 17 * must display the following acknowledgement: 18 * This product includes software developed by the University of 19 * California, Berkeley and its contributors. 20 * 4. Neither the name of the University nor the names of its contributors 21 * may be used to endorse or promote products derived from this software 22 * without specific prior written permission. 23 * 24 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 25 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 26 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 27 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 28 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 29 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 30 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 31 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 32 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 33 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 34 * SUCH DAMAGE. 35 */ 36 37 #if defined(LIBC_SCCS) && !defined(lint) 38 /*static char *sccsid = "from: @(#)fclose.c 5.2 (Berkeley) 2/1/91";*/ 39 static char *rcsid = "$Id: fclose.c,v 1.4 1993/12/31 19:13:47 jtc Exp $"; 40 #endif /* LIBC_SCCS and not lint */ 41 42 #include <errno.h> 43 #include <stdio.h> 44 #include <stdlib.h> 45 #include "local.h" 46 47 int 48 fclose(fp) 49 register FILE *fp; 50 { 51 register int r; 52 53 if (fp->_flags == 0) { /* not open! */ 54 errno = EBADF; 55 return (EOF); 56 } 57 r = fp->_flags & __SWR ? __sflush(fp) : 0; 58 if (fp->_close != NULL && (*fp->_close)(fp->_cookie) < 0) 59 r = EOF; 60 if (fp->_flags & __SMBF) 61 free((char *)fp->_bf._base); 62 if (HASUB(fp)) 63 FREEUB(fp); 64 if (HASLB(fp)) 65 FREELB(fp); 66 fp->_flags = 0; /* release this FILE for reuse */ 67 return (r); 68 } 69