1 | /*-␊ |
2 | * Copyright (c) 1990, 1993␊ |
3 | *␉The Regents of the University of California. 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 | * 4. Neither the name of the University nor the names of its contributors␊ |
17 | * may be used to endorse or promote products derived from this software␊ |
18 | * without specific prior written permission.␊ |
19 | *␊ |
20 | * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND␊ |
21 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE␊ |
22 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE␊ |
23 | * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE␊ |
24 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL␊ |
25 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS␊ |
26 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)␊ |
27 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT␊ |
28 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY␊ |
29 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF␊ |
30 | * SUCH DAMAGE.␊ |
31 | */␊ |
32 | ␊ |
33 | #if defined(LIBC_SCCS) && !defined(lint)␊ |
34 | static char sccsid[] = "@(#)fclose.c␉8.1 (Berkeley) 6/4/93";␊ |
35 | #endif /* LIBC_SCCS and not lint */␊ |
36 | #include <sys/cdefs.h>␊ |
37 | __FBSDID("$FreeBSD: src/lib/libc/stdio/fclose.c,v 1.12 2007/01/09 00:28:06 imp Exp $");␊ |
38 | ␊ |
39 | #include "namespace.h"␊ |
40 | #include <errno.h>␊ |
41 | #include <stdio.h>␊ |
42 | #include <stdlib.h>␊ |
43 | #include "un-namespace.h"␊ |
44 | ␊ |
45 | #include "local.h"␊ |
46 | ␊ |
47 | int␊ |
48 | fclose(FILE *fp)␊ |
49 | {␊ |
50 | ␉int r;␊ |
51 | ␊ |
52 | ␉if (!__sdidinit)␊ |
53 | ␉␉__sinit();␊ |
54 | ␊ |
55 | ␉if (fp == NULL) {␊ |
56 | errno = EFAULT;␊ |
57 | ␉␉return (EOF);␊ |
58 | ␉}␊ |
59 | ␉if (fp->_flags == 0) {␉/* not open! */␊ |
60 | errno = EBADF;␊ |
61 | ␉␉return (EOF);␊ |
62 | ␉}␊ |
63 | ␉r = fp->_flags & __SWR ? __sflush(fp) : 0;␊ |
64 | ␉if (fp->_close != NULL && (*fp->_close)(fp->_cookie) < 0)␊ |
65 | ␉␉r = EOF;␊ |
66 | ␉if (fp->_flags & __SMBF)␊ |
67 | ␉␉free((char *)fp->_bf._base);␊ |
68 | ␉if (HASUB(fp))␊ |
69 | ␉␉FREEUB(fp);␊ |
70 | ␉if (HASLB(fp))␊ |
71 | ␉␉FREELB(fp);␊ |
72 | ␉fp->_file = -1;␊ |
73 | ␉fp->_r = fp->_w = 0;␉/* Mess up if reaccessed. */␊ |
74 | ␉__sfprelease(fp);␉/* Release this FILE for reuse. */␊ |
75 | ␉return (r);␊ |
76 | }␊ |
77 | |