1/*	$NetBSD: compat_statfs.c,v 1.9 2019/10/04 01:28:03 christos Exp $	*/
2
3/*-
4 * Copyright (c) 2004, 2019 The NetBSD Foundation, Inc.
5 * All rights reserved.
6 *
7 * This code is derived from software contributed to The NetBSD Foundation
8 * by Christos Zoulas.
9 *
10 * Redistribution and use in source and binary forms, with or without
11 * modification, are permitted provided that the following conditions
12 * are met:
13 * 1. Redistributions of source code must retain the above copyright
14 *    notice, this list of conditions and the following disclaimer.
15 * 2. Redistributions in binary form must reproduce the above copyright
16 *    notice, this list of conditions and the following disclaimer in the
17 *    documentation and/or other materials provided with the distribution.
18 *
19 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
20 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
21 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
22 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
23 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
24 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
27 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
29 * POSSIBILITY OF SUCH DAMAGE.
30 */
31
32#include <sys/cdefs.h>
33#if defined(LIBC_SCCS) && !defined(lint)
34__RCSID("$NetBSD: compat_statfs.c,v 1.9 2019/10/04 01:28:03 christos Exp $");
35#endif /* LIBC_SCCS and not lint */
36
37#define __LIBC12_SOURCE__
38
39#include "namespace.h"
40#include <sys/types.h>
41#include <sys/param.h>
42#include <sys/mount.h>
43#include <compat/sys/mount.h>
44#include <compat/include/fstypes.h>
45#include <compat/sys/statvfs.h>
46#include <string.h>
47#include <stdlib.h>
48
49__warn_references(statfs,
50    "warning: reference to obsolete statfs(); use statvfs()")
51
52__warn_references(fstatfs,
53    "warning: reference to obsolete fstatfs(); use fstatvfs()")
54
55__warn_references(fhstatfs,
56    "warning: reference to obsolete fhstatfs(); use fhstatvfs()")
57
58__warn_references(getfsstat,
59    "warning: reference to obsolete getfsstat(); use getvfsstat()")
60
61__strong_alias(statfs, __compat_statfs)
62__strong_alias(fstatfs, __compat_fstatfs)
63__strong_alias(fhstatfs, __compat_fhstatfs)
64__strong_alias(getfsstat, __compat_getfsstat)
65
66int
67__compat_statfs(const char *file, struct statfs12 *ost)
68{
69	struct statvfs nst;
70	int ret;
71
72	if ((ret = __statvfs90(file, &nst)) == -1)
73		return ret;
74	statvfs_to_statfs12(&nst, ost);
75	return ret;
76}
77
78int
79__compat_fstatfs(int f, struct statfs12 *ost)
80{
81	struct statvfs nst;
82	int ret;
83
84	if ((ret = __fstatvfs90(f, &nst)) == -1)
85		return ret;
86	statvfs_to_statfs12(&nst, ost);
87	return ret;
88}
89
90int
91__compat_fhstatfs(const struct compat_30_fhandle *fh, struct statfs12 *ost)
92{
93	struct statvfs nst;
94	int ret;
95
96	if ((ret = __fhstatvfs190(fh, FHANDLE30_SIZE, &nst, ST_WAIT)) == -1)
97		return ret;
98	statvfs_to_statfs12(&nst, ost);
99	return ret;
100}
101
102int
103__compat_getfsstat(struct statfs12 *ost, long size, int flags)
104{
105	struct statvfs *nst;
106	int ret, i;
107	size_t bsize = (size_t)(size / sizeof(*ost)) * sizeof(*nst);
108
109	if (ost != NULL) {
110		if ((nst = malloc(bsize)) == NULL)
111			return -1;
112	} else
113		nst = NULL;
114
115	if ((ret = __getvfsstat90(nst, bsize, flags)) == -1)
116		goto done;
117	if (nst)
118		for (i = 0; i < ret; i++)
119			statvfs_to_statfs12(&nst[i], &ost[i]);
120done:
121	if (nst)
122		free(nst);
123	return ret;
124}
125