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
__strong_alias(statfs,__compat_statfs)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
66 int
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
78 int
__compat_fstatfs(int f,struct statfs12 * ost)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
90 int
__compat_fhstatfs(const struct compat_30_fhandle * fh,struct statfs12 * ost)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
102 int
__compat_getfsstat(struct statfs12 * ost,long size,int flags)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]);
120 done:
121 if (nst)
122 free(nst);
123 return ret;
124 }
125