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 */ 209