1 /*
2 * CDDL HEADER START
3 *
4 * The contents of this file are subject to the terms of the
5 * Common Development and Distribution License, Version 1.0 only
6 * (the "License"). You may not use this file except in compliance
7 * with the License.
8 *
9 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
10 * or http://www.opensolaris.org/os/licensing.
11 * See the License for the specific language governing permissions
12 * and limitations under the License.
13 *
14 * When distributing Covered Code, include this CDDL HEADER in each
15 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
16 * If applicable, add the following below this CDDL HEADER, with the
17 * fields enclosed by brackets "[]" replaced with your own identifying
18 * information: Portions Copyright [yyyy] [name of copyright owner]
19 *
20 * CDDL HEADER END
21 */
22 /* Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T */
23 /* All Rights Reserved */
24
25 /*
26 * Copyright 2014 Garrett D'Amore <garrett@damore.org>
27 *
28 * Copyright 2004 Sun Microsystems, Inc. All rights reserved.
29 * Use is subject to license terms.
30 */
31
32 #ifndef _SYS_STATVFS_H
33 #define _SYS_STATVFS_H
34
35 #include <sys/feature_tests.h>
36 #include <sys/types.h>
37
38 #ifdef __cplusplus
39 extern "C" {
40 #endif
41
42 /*
43 * Structure returned by statvfs(2).
44 */
45
46 #define _FSTYPSZ 16
47 #if !defined(_XPG4_2) || defined(__EXTENSIONS__)
48 #ifndef FSTYPSZ
49 #define FSTYPSZ _FSTYPSZ
50 #endif
51 #endif /* !defined(_XPG4_2) || defined(__EXTENSIONS__) */
52
53 typedef struct statvfs {
54 unsigned long f_bsize; /* fundamental file system block size */
55 unsigned long f_frsize; /* fragment size */
56 fsblkcnt_t f_blocks; /* total blocks of f_frsize on fs */
57 fsblkcnt_t f_bfree; /* total free blocks of f_frsize */
58 fsblkcnt_t f_bavail; /* free blocks avail to non-superuser */
59 fsfilcnt_t f_files; /* total file nodes (inodes) */
60 fsfilcnt_t f_ffree; /* total free file nodes */
61 fsfilcnt_t f_favail; /* free nodes avail to non-superuser */
62 unsigned long f_fsid; /* file system id (dev for now) */
63 char f_basetype[_FSTYPSZ]; /* target fs type name, */
64 /* null-terminated */
65 unsigned long f_flag; /* bit-mask of flags */
66 unsigned long f_namemax; /* maximum file name length */
67 char f_fstr[32]; /* filesystem-specific string */
68 #if !defined(_LP64)
69 unsigned long f_filler[16]; /* reserved for future expansion */
70 #endif
71 } statvfs_t;
72
73 #if defined(_SYSCALL32)
74
75 /* Kernel view of user ILP32 statvfs structure */
76
77 typedef struct statvfs32 {
78 uint32_t f_bsize; /* fundamental file system block size */
79 uint32_t f_frsize; /* fragment size */
80 fsblkcnt32_t f_blocks; /* total blocks of f_frsize on fs */
81 fsblkcnt32_t f_bfree; /* total free blocks of f_frsize */
82 fsblkcnt32_t f_bavail; /* free blocks avail to non-superuser */
83 fsfilcnt32_t f_files; /* total file nodes (inodes) */
84 fsfilcnt32_t f_ffree; /* total free file nodes */
85 fsfilcnt32_t f_favail; /* free nodes avail to non-superuser */
86 uint32_t f_fsid; /* file system id (dev for now) */
87 char f_basetype[_FSTYPSZ]; /* target fs type name, */
88 /* null-terminated */
89 uint32_t f_flag; /* bit-mask of flags */
90 uint32_t f_namemax; /* maximum file name length */
91 char f_fstr[32]; /* filesystem-specific string */
92 uint32_t f_filler[16]; /* reserved for future expansion */
93 } statvfs32_t;
94
95 #endif /* _SYSCALL32 */
96
97 /* transitional large file interface version */
98 #if defined(_LARGEFILE64_SOURCE)
99 typedef struct statvfs64 {
100 unsigned long f_bsize; /* preferred file system block size */
101 unsigned long f_frsize; /* fundamental file system block size */
102 fsblkcnt64_t f_blocks; /* total blocks of f_frsize */
103 fsblkcnt64_t f_bfree; /* total free blocks of f_frsize */
104 fsblkcnt64_t f_bavail; /* free blocks avail to non-superuser */
105 fsfilcnt64_t f_files; /* total # of file nodes (inodes) */
106 fsfilcnt64_t f_ffree; /* total # of free file nodes */
107 fsfilcnt64_t f_favail; /* free nodes avail to non-superuser */
108 unsigned long f_fsid; /* file system id (dev for now) */
109 char f_basetype[FSTYPSZ]; /* target fs type name, */
110 /* null-terminated */
111 unsigned long f_flag; /* bit-mask of flags */
112 unsigned long f_namemax; /* maximum file name length */
113 char f_fstr[32]; /* filesystem-specific string */
114 #if !defined(_LP64)
115 unsigned long f_filler[16]; /* reserved for future expansion */
116 #endif /* _LP64 */
117 } statvfs64_t;
118 #endif
119
120 #if defined(_SYSCALL32)
121
122 /* Kernel view of user ILP32 statvfs64 structure */
123
124 #if _LONG_LONG_ALIGNMENT == 8 && _LONG_LONG_ALIGNMENT_32 == 4
125 #pragma pack(4)
126 #endif
127
128 typedef struct statvfs64_32 {
129 uint32_t f_bsize; /* preferred file system block size */
130 uint32_t f_frsize; /* fundamental file system block size */
131 fsblkcnt64_t f_blocks; /* total blocks of f_frsize */
132 fsblkcnt64_t f_bfree; /* total free blocks of f_frsize */
133 fsblkcnt64_t f_bavail; /* free blocks avail to non-superuser */
134 fsfilcnt64_t f_files; /* total # of file nodes (inodes) */
135 fsfilcnt64_t f_ffree; /* total # of free file nodes */
136 fsfilcnt64_t f_favail; /* free nodes avail to non-superuser */
137 uint32_t f_fsid; /* file system id (dev for now) */
138 char f_basetype[FSTYPSZ]; /* target fs type name, */
139 /* null-terminated */
140 uint32_t f_flag; /* bit-mask of flags */
141 uint32_t f_namemax; /* maximum file name length */
142 char f_fstr[32]; /* filesystem-specific string */
143 uint32_t f_filler[16]; /* reserved for future expansion */
144 } statvfs64_32_t;
145
146 #if _LONG_LONG_ALIGNMENT == 8 && _LONG_LONG_ALIGNMENT_32 == 4
147 #pragma pack()
148 #endif
149
150 #endif /* _SYSCALL32 */
151
152 /*
153 * Flag definitions.
154 */
155
156 #define ST_RDONLY 0x01 /* read-only file system */
157 #define ST_NOSUID 0x02 /* does not support setuid/setgid semantics */
158 #define ST_NOTRUNC 0x04 /* does not truncate long file names */
159
160 #if !defined(_KERNEL)
161 /*
162 * large file compilation environment setup
163 */
164 #if !defined(_LP64) && _FILE_OFFSET_BITS == 64
165 #ifdef __PRAGMA_REDEFINE_EXTNAME
166 #pragma redefine_extname statvfs statvfs64
167 #pragma redefine_extname fstatvfs fstatvfs64
168 #else
169 #define statvfs_t statvfs64_t
170 #define statvfs statvfs64
171 #define fstatvfs fstatvfs64
172 #endif
173 #endif /* !_LP64 && _FILE_OFFSET_BITS == 64 */
174
175 #if defined(_LP64) && defined(_LARGEFILE64_SOURCE)
176 /*
177 * In the LP64 compilation environment, map large file interfaces
178 * back to native versions where possible.
179 */
180 #ifdef __PRAGMA_REDEFINE_EXTNAME
181 #pragma redefine_extname statvfs64 statvfs
182 #pragma redefine_extname fstatvfs64 fstatvfs
183 #else
184 #define statvfs64_t statvfs_t
185 #define statvfs64 statvfs
186 #define fstatvfs64 fstatvfs
187 #endif
188 #endif /* _LP64 && _LARGEFILE64_SOURCE */
189
190 int statvfs(const char *_RESTRICT_KYWD, statvfs_t *_RESTRICT_KYWD);
191 int fstatvfs(int, statvfs_t *);
192
193 /* transitional large file interface versions */
194 #if defined(_LARGEFILE64_SOURCE) && !((_FILE_OFFSET_BITS == 64) && \
195 !defined(__PRAGMA_REDEFINE_EXTNAME))
196 int statvfs64(const char *_RESTRICT_KYWD, statvfs64_t *_RESTRICT_KYWD);
197 int fstatvfs64(int, statvfs64_t *);
198 #endif /* _LARGEFILE64_SOURCE... */
199 #endif /* !defined(_KERNEL) */
200
201 #ifdef __cplusplus
202 }
203 #endif
204
205 #endif /* _SYS_STATVFS_H */