mirror of
https://github.com/freebsd/freebsd-src
synced 2024-09-06 17:18:32 +00:00
6e28a6bc2e
Remove ancient SCCS tags from the tree, automated scripting, with two minor fixup to keep things compiling. All the common forms in the tree were removed with a perl script. Sponsored by: Netflix
109 lines
3.6 KiB
C
109 lines
3.6 KiB
C
/* $NetBSD: close.c,v 1.7 1997/01/22 00:38:09 cgd Exp $ */
|
|
|
|
/*-
|
|
* Copyright (c) 1993
|
|
* The Regents of the University of California. All rights reserved.
|
|
*
|
|
* This code is derived from software contributed to Berkeley by
|
|
* The Mach Operating System project at Carnegie-Mellon University.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in the
|
|
* documentation and/or other materials provided with the distribution.
|
|
* 3. Neither the name of the University nor the names of its contributors
|
|
* may be used to endorse or promote products derived from this software
|
|
* without specific prior written permission.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
|
|
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
|
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
|
|
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
|
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
|
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
|
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
|
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
|
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
|
* SUCH DAMAGE.
|
|
*
|
|
*
|
|
* Copyright (c) 1989, 1990, 1991 Carnegie Mellon University
|
|
* All Rights Reserved.
|
|
*
|
|
* Author: Alessandro Forin
|
|
*
|
|
* Permission to use, copy, modify and distribute this software and its
|
|
* documentation is hereby granted, provided that both the copyright
|
|
* notice and this permission notice appear in all copies of the
|
|
* software, derivative works or modified versions, and any portions
|
|
* thereof, and that both notices appear in supporting documentation.
|
|
*
|
|
* CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
|
|
* CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR
|
|
* ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
|
|
*
|
|
* Carnegie Mellon requests users of this software to return to
|
|
*
|
|
* Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU
|
|
* School of Computer Science
|
|
* Carnegie Mellon University
|
|
* Pittsburgh PA 15213-3890
|
|
*
|
|
* any improvements or extensions that they make and grant Carnegie the
|
|
* rights to redistribute these changes.
|
|
*/
|
|
|
|
#include <sys/cdefs.h>
|
|
#include "stand.h"
|
|
|
|
int
|
|
close(int fd)
|
|
{
|
|
struct open_file *f, *last;
|
|
int err1 = 0, err2 = 0;
|
|
|
|
f = fd2open_file(fd);
|
|
if (f == NULL) {
|
|
errno = EBADF;
|
|
return (-1);
|
|
}
|
|
free(f->f_rabuf);
|
|
f->f_rabuf = NULL;
|
|
|
|
if (f->f_flags != 0) {
|
|
if (!(f->f_flags & F_RAW) && f->f_ops)
|
|
err1 = (f->f_ops->fo_close)(f);
|
|
if (!(f->f_flags & F_NODEV) && f->f_dev)
|
|
err2 = (f->f_dev->dv_close)(f);
|
|
if (f->f_devdata != NULL)
|
|
devclose(f);
|
|
f->f_flags = 0;
|
|
} else {
|
|
/* Attempt to close already closed file. */
|
|
err1 = EBADF;
|
|
}
|
|
|
|
/* free unused entries from tail. */
|
|
TAILQ_FOREACH_REVERSE_SAFE(last, &files, file_list, f_link, f) {
|
|
if (last->f_flags != 0)
|
|
break;
|
|
TAILQ_REMOVE(&files, last, f_link);
|
|
free(last);
|
|
}
|
|
|
|
if (err1) {
|
|
errno = err1;
|
|
return (-1);
|
|
}
|
|
if (err2) {
|
|
errno = err2;
|
|
return (-1);
|
|
}
|
|
return (0);
|
|
}
|