1 /* $NetBSD: compat_statvfs.c,v 1.1 2019/09/22 22:59:38 christos Exp $ */
2
3 /*-
4 * Copyright (c) 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
33 #include <sys/cdefs.h>
34 #if defined(LIBC_SCCS) && !defined(lint)
35 __RCSID("$NetBSD: compat_statvfs.c,v 1.1 2019/09/22 22:59:38 christos Exp $");
36 #endif /* LIBC_SCCS and not lint */
37
38 #define __LIBC12_SOURCE__
39
40 #include <stdlib.h>
41 #include <sys/types.h>
42 #include <sys/statvfs.h>
43 #include <compat/include/fstypes.h>
44 #include <compat/sys/statvfs.h>
45
46 __warn_references(statvfs,
47 "warning: reference to compatibility statvfs(); include <sys/statvfs.h> to generate correct reference")
48 __warn_references(statvfs1,
49 "warning: reference to compatibility statvfs1(); include <sys/statvfs.h> to generate correct reference")
50
51 __warn_references(fstatvfs,
52 "warning: reference to compatibility fstatvfs(); include <sys/statvfs.h> to generate correct reference")
53 __warn_references(fstatvfs1,
54 "warning: reference to compatibility fstatvfs1(); include <sys/statvfs.h> to generate correct reference")
55
56 __warn_references(getvfsstat,
57 "warning: reference to compatibility getvfsstat(); include <sys/statvfs.h> to generate correct reference")
58
__strong_alias(statvfs,__compat_statvfs)59 __strong_alias(statvfs, __compat_statvfs)
60 __strong_alias(statvfs1, __compat_statvfs1)
61 __strong_alias(fstatvfs, __compat_fstatvfs)
62 __strong_alias(fstatvfs1, __compat_fstatvfs1)
63 __strong_alias(getvfsstat, __compat_getvfsstat)
64
65 int
66 __compat_statvfs(const char *path, struct statvfs90 *buf)
67 {
68 struct statvfs sb;
69 int error = __statvfs190(path, &sb, 0);
70 if (error != -1)
71 statvfs_to_statvfs90(&sb, buf);
72 return error;
73 }
74
75 int
__compat_statvfs1(const char * path,struct statvfs90 * buf,int flags)76 __compat_statvfs1(const char *path, struct statvfs90 *buf, int flags)
77 {
78 struct statvfs sb;
79 int error = __statvfs190(path, &sb, flags);
80 if (error != -1)
81 statvfs_to_statvfs90(&sb, buf);
82 return error;
83 }
84
85 int
__compat_fstatvfs(int fd,struct statvfs90 * buf)86 __compat_fstatvfs(int fd, struct statvfs90 *buf)
87 {
88 struct statvfs sb;
89 int error = __fstatvfs190(fd, &sb, 0);
90 if (error != -1)
91 statvfs_to_statvfs90(&sb, buf);
92 return error;
93 }
94
95 int
__compat_fstatvfs1(int fd,struct statvfs90 * buf,int flags)96 __compat_fstatvfs1(int fd, struct statvfs90 *buf, int flags)
97 {
98 struct statvfs sb;
99 int error = __fstatvfs190(fd, &sb, flags);
100 if (error != -1)
101 statvfs_to_statvfs90(&sb, buf);
102 return error;
103 }
104
105 int
__compat_getvfsstat(struct statvfs90 * buf,size_t size,int flags)106 __compat_getvfsstat(struct statvfs90 *buf, size_t size, int flags)
107 {
108 size_t count = size / sizeof(*buf);
109 struct statvfs *sb = calloc(count, sizeof(*sb));
110
111 if (sb == NULL)
112 return -1;
113
114 int error = __getvfsstat90(sb, count * sizeof(*sb), flags);
115 if (error != -1) {
116 for (size_t i = 0; i < count; i++)
117 statvfs_to_statvfs90(sb + i, buf + i);
118 }
119 free(sb);
120 return error;
121 }
122