xref: /illumos-gate/usr/src/boot/libsa/closeall.c (revision 22028508fd28d36ff74dc02c5774a8ba1f0db045)
1*22028508SToomas Soome /*-
2*22028508SToomas Soome  * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
3*22028508SToomas Soome  *
4*22028508SToomas Soome  * Copyright (c) 2021 Toomas Soome <tsoome@me.com>
5*22028508SToomas Soome  *
6*22028508SToomas Soome  * Redistribution and use in source and binary forms, with or without
7*22028508SToomas Soome  * modification, are permitted provided that the following conditions
8*22028508SToomas Soome  * are met:
9*22028508SToomas Soome  * 1. Redistributions of source code must retain the above copyright
10*22028508SToomas Soome  *    notice, this list of conditions and the following disclaimer.
11*22028508SToomas Soome  * 2. Redistributions in binary form must reproduce the above copyright
12*22028508SToomas Soome  *    notice, this list of conditions and the following disclaimer in the
13*22028508SToomas Soome  *    documentation and/or other materials provided with the distribution.
14*22028508SToomas Soome  *
15*22028508SToomas Soome  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
16*22028508SToomas Soome  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
17*22028508SToomas Soome  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
18*22028508SToomas Soome  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
19*22028508SToomas Soome  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
20*22028508SToomas Soome  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
21*22028508SToomas Soome  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
22*22028508SToomas Soome  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
23*22028508SToomas Soome  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
24*22028508SToomas Soome  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
25*22028508SToomas Soome  * SUCH DAMAGE.
26*22028508SToomas Soome  */
27*22028508SToomas Soome 
28*22028508SToomas Soome #include <sys/cdefs.h>
29*22028508SToomas Soome 
30*22028508SToomas Soome #include "stand.h"
31*22028508SToomas Soome 
32*22028508SToomas Soome void
closeall(void)33*22028508SToomas Soome closeall(void)
34*22028508SToomas Soome {
35*22028508SToomas Soome 	struct open_file *f;
36*22028508SToomas Soome 
37*22028508SToomas Soome 	/*
38*22028508SToomas Soome 	 * Pick up last entry and close it, this will also trigger
39*22028508SToomas Soome 	 * the removal of this entry, and we end up with empty list.
40*22028508SToomas Soome 	 */
41*22028508SToomas Soome 	while ((f = TAILQ_LAST(&files, file_list)) != NULL) {
42*22028508SToomas Soome 		(void) close(f->f_id);
43*22028508SToomas Soome 	}
44*22028508SToomas Soome 	/* reset errno from close() */
45*22028508SToomas Soome 	errno = 0;
46*22028508SToomas Soome }
47