Subversion Repositories shark

Rev

Details | Last modification | View Log | RSS feed

Rev Author Line No. Line
2 pj 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
 * 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
#if 0
39
static char sccsid[] = "@(#)fclose.c    8.1 (Berkeley) 6/4/93";
40
#endif
41
static const char rcsid[] =
42
                "$\Id: fclose.c,v 1.3 1996/06/22 10:33:02 jraynard Exp $";
43
#endif /* LIBC_SCCS and not lint */
44
 
45
#include <errno.h>
46
#include <stdio.h>
47
#include <stdlib.h>
48
#include "local.h"
49
#ifdef _THREAD_SAFE
50
#include <pthread.h>
51
#include "pthread_private.h"
52
#endif
53
 
54
int
55
fclose(fp)
56
        register FILE *fp;
57
{
58
        register int r;
59
 
60
        if (fp->_flags == 0) {  /* not open! */
61
                errno = EBADF;
62
                return (EOF);
63
        }
64
#ifdef _THREAD_SAFE
65
        _thread_flockfile(fp,__FILE__,__LINE__);
66
#endif
67
        r = fp->_flags & __SWR ? __sflush(fp) : 0;
68
        if (fp->_close != NULL && (*fp->_close)(fp->_cookie) < 0)
69
                r = EOF;
70
        if (fp->_flags & __SMBF)
71
                free((char *)fp->_bf._base);
72
        if (HASUB(fp))
73
                FREEUB(fp);
74
        if (HASLB(fp))
75
                FREELB(fp);
76
#ifdef _THREAD_SAFE
77
        _thread_funlockfile(fp);
78
#endif
79
        fp->_flags = 0;         /* Release this FILE for reuse. */
80
        fp->_file = -1;
81
        fp->_r = fp->_w = 0;    /* Mess up if reaccessed. */
82
        return (r);
83
}