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 /*
27 * Copyright 2004 Sun Microsystems, Inc. All rights reserved.
28 * Use is subject to license terms.
29 */
30
31 #ifndef _SYS_STATVFS_H
32 #define _SYS_STATVFS_H
33
34 #pragma ident "%Z%%M% %I% %E% SMI" /* SVr4.0 1.10 */
35
36 #include <sys/feature_tests.h>
37 #include <sys/types.h>
38
39 #ifdef __cplusplus
40 extern "C" {
41 #endif
42
43 /*
44 * Structure returned by statvfs(2).
45 */
46
47 #define _FSTYPSZ 16
48 #if !defined(_XPG4_2) || defined(__EXTENSIONS__)
49 #ifndef FSTYPSZ
50 #define FSTYPSZ _FSTYPSZ
51 #endif
52 #endif /* !defined(_XPG4_2) || defined(__EXTENSIONS__) */
53
54 typedef struct statvfs {
55 unsigned long f_bsize; /* fundamental file system block size */
56 unsigned long f_frsize; /* fragment size */
57 fsblkcnt_t f_blocks; /* total blocks of f_frsize on fs */
58 fsblkcnt_t f_bfree; /* total free blocks of f_frsize */
59 fsblkcnt_t f_bavail; /* free blocks avail to non-superuser */
60 fsfilcnt_t f_files; /* total file nodes (inodes) */
61 fsfilcnt_t f_ffree; /* total free file nodes */
62 fsfilcnt_t f_favail; /* free nodes avail to non-superuser */
63 unsigned long f_fsid; /* file system id (dev for now) */
64 char f_basetype[_FSTYPSZ]; /* target fs type name, */
65 /* null-terminated */
66 unsigned long f_flag; /* bit-mask of flags */
67 unsigned long f_namemax; /* maximum file name length */
68 char f_fstr[32]; /* filesystem-specific string */
69 #if !defined(_LP64)
70 unsigned long f_filler[16]; /* reserved for future expansion */
71 #endif
72 } statvfs_t;
73
74 #if defined(_SYSCALL32)
75
76 /* Kernel view of user ILP32 statvfs structure */
77
78 typedef struct statvfs32 {
79 uint32_t f_bsize; /* fundamental file system block size */
80 uint32_t f_frsize; /* fragment size */
81 fsblkcnt32_t f_blocks; /* total blocks of f_frsize on fs */
82 fsblkcnt32_t f_bfree; /* total free blocks of f_frsize */
83 fsblkcnt32_t f_bavail; /* free blocks avail to non-superuser */
84 fsfilcnt32_t f_files; /* total file nodes (inodes) */
85 fsfilcnt32_t f_ffree; /* total free file nodes */
86 fsfilcnt32_t f_favail; /* free nodes avail to non-superuser */
87 uint32_t f_fsid; /* file system id (dev for now) */
88 char f_basetype[_FSTYPSZ]; /* target fs type name, */
89 /* null-terminated */
90 uint32_t f_flag; /* bit-mask of flags */
91 uint32_t f_namemax; /* maximum file name length */
92 char f_fstr[32]; /* filesystem-specific string */
93 uint32_t f_filler[16]; /* reserved for future expansion */
94 } statvfs32_t;
95
96 #endif /* _SYSCALL32 */
97
98 /* transitional large file interface version */
99 #if defined(_LARGEFILE64_SOURCE)
100 typedef struct statvfs64 {
101 unsigned long f_bsize; /* preferred file system block size */
102 unsigned long f_frsize; /* fundamental file system block size */
103 fsblkcnt64_t f_blocks; /* total blocks of f_frsize */
104 fsblkcnt64_t f_bfree; /* total free blocks of f_frsize */
105 fsblkcnt64_t f_bavail; /* free blocks avail to non-superuser */
106 fsfilcnt64_t f_files; /* total # of file nodes (inodes) */
107 fsfilcnt64_t f_ffree; /* total # of free file nodes */
108 fsfilcnt64_t f_favail; /* free nodes avail to non-superuser */
109 unsigned long f_fsid; /* file system id (dev for now) */
110 char f_basetype[FSTYPSZ]; /* target fs type name, */
111 /* null-terminated */
112 unsigned long f_flag; /* bit-mask of flags */
113 unsigned long f_namemax; /* maximum file name length */
114 char f_fstr[32]; /* filesystem-specific string */
115 #if !defined(_LP64)
116 unsigned long f_filler[16]; /* reserved for future expansion */
117 #endif /* _LP64 */
118 } statvfs64_t;
119 #endif
120
121 #if defined(_SYSCALL32)
122
123 /* Kernel view of user ILP32 statvfs64 structure */
124
125 #if _LONG_LONG_ALIGNMENT == 8 && _LONG_LONG_ALIGNMENT_32 == 4
126 #pragma pack(4)
127 #endif
128
129 typedef struct statvfs64_32 {
130 uint32_t f_bsize; /* preferred file system block size */
131 uint32_t f_frsize; /* fundamental file system block size */
132 fsblkcnt64_t f_blocks; /* total blocks of f_frsize */
133 fsblkcnt64_t f_bfree; /* total free blocks of f_frsize */
134 fsblkcnt64_t f_bavail; /* free blocks avail to non-superuser */
135 fsfilcnt64_t f_files; /* total # of file nodes (inodes) */
136 fsfilcnt64_t f_ffree; /* total # of free file nodes */
137 fsfilcnt64_t f_favail; /* free nodes avail to non-superuser */
138 uint32_t f_fsid; /* file system id (dev for now) */
139 char f_basetype[FSTYPSZ]; /* target fs type name, */
140 /* null-terminated */
141 uint32_t f_flag; /* bit-mask of flags */
142 uint32_t f_namemax; /* maximum file name length */
143 char f_fstr[32]; /* filesystem-specific string */
144 uint32_t f_filler[16]; /* reserved for future expansion */
145 } statvfs64_32_t;
146
147 #if _LONG_LONG_ALIGNMENT == 8 && _LONG_LONG_ALIGNMENT_32 == 4
148 #pragma pack()
149 #endif
150
151 #endif /* _SYSCALL32 */
152
153 /*
154 * Flag definitions.
155 */
156
157 #define ST_RDONLY 0x01 /* read-only file system */
158 #define ST_NOSUID 0x02 /* does not support setuid/setgid semantics */
159 #define ST_NOTRUNC 0x04 /* does not truncate long file names */
160
161 #if !defined(_KERNEL)
162 /*
163 * large file compilation environment setup
164 */
165 #if !defined(_LP64) && _FILE_OFFSET_BITS == 64
166 #ifdef __PRAGMA_REDEFINE_EXTNAME
167 #pragma redefine_extname statvfs statvfs64
168 #pragma redefine_extname fstatvfs fstatvfs64
169 #else
170 #define statvfs_t statvfs64_t
171 #define statvfs statvfs64
172 #define fstatvfs fstatvfs64
173 #endif
174 #endif /* !_LP64 && _FILE_OFFSET_BITS == 64 */
175
176 #if defined(_LP64) && defined(_LARGEFILE64_SOURCE)
177 /*
178 * In the LP64 compilation environment, map large file interfaces
179 * back to native versions where possible.
180 */
181 #ifdef __PRAGMA_REDEFINE_EXTNAME
182 #pragma redefine_extname statvfs64 statvfs
183 #pragma redefine_extname fstatvfs64 fstatvfs
184 #else
185 #define statvfs64_t statvfs_t
186 #define statvfs64 statvfs
187 #define fstatvfs64 fstatvfs
188 #endif
189 #endif /* _LP64 && _LARGEFILE64_SOURCE */
190
191 #if defined(__STDC__)
192 int statvfs(const char *_RESTRICT_KYWD, statvfs_t *_RESTRICT_KYWD);
193 int fstatvfs(int, statvfs_t *);
194
195 /* transitional large file interface versions */
196 #if defined(_LARGEFILE64_SOURCE) && !((_FILE_OFFSET_BITS == 64) && \
197 !defined(__PRAGMA_REDEFINE_EXTNAME))
198 int statvfs64(const char *_RESTRICT_KYWD, statvfs64_t *_RESTRICT_KYWD);
199 int fstatvfs64(int, statvfs64_t *);
200 #endif /* _LARGEFILE64_SOURCE... */
201 #endif /* defined(__STDC__) */
202 #endif /* !defined(_KERNEL) */
203
204 #ifdef __cplusplus
205 }
206 #endif
207
208 #endif /* _SYS_STATVFS_H */