sys/sys/stat.h

   1 /*-
   2  * Copyright (c) 1982, 1986, 1989, 1993
   3  *      The Regents of the University of California.  All rights reserved.
   4  * (c) UNIX System Laboratories, Inc.
   5  * All or some portions of this file are derived from material licensed
   6  * to the University of California by American Telephone and Telegraph
   7  * Co. or Unix System Laboratories, Inc. and are reproduced herein with
   8  * the permission of UNIX System Laboratories, Inc.
   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  * 3. Neither the name of the University nor the names of its contributors
  19  *    may be used to endorse or promote products derived from this software
  20  *    without specific prior written permission.
  21  *
  22  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
  23  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  24  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  25  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
  26  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  27  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  28  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  29  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  30  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  31  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  32  * SUCH DAMAGE.
  33  *
  34  *      @(#)stat.h      8.12 (Berkeley) 6/16/95
  35  * $FreeBSD: src/sys/sys/stat.h,v 1.20 1999/12/29 04:24:47 peter Exp $
  36  */
  37
  38 #ifndef _SYS_STAT_H_
  39 #define _SYS_STAT_H_
  40
  41 #include <sys/cdefs.h>
  42 #include <sys/types.h>
  43
  44 #if !defined(_KERNEL) && __BSD_VISIBLE
  45 /*
  46  * XXX We get miscellaneous namespace pollution with this.
  47  */
  48 #include <sys/time.h>
  49 #else
  50 #include <sys/_timespec.h>
  51 #endif
  52
  53 #ifdef _KERNEL
  54 #define __dev_t udev_t
  55 #else
  56 #define __dev_t dev_t
  57 #endif
  58
  59 /*
  60  * stat structure notes:
  61  *
  62  * NOTE: st_fsmid removed in DragonFly 2.5.x.
  63  *
  64  * XXX st_blocks should be blkcnt_t; st_blksize should be blksize_t;
  65  *     see 1003.1-2008
  66  */
  67 struct stat {
  68         ino_t     st_ino;               /* inode's number */
  69         nlink_t   st_nlink;             /* number of hard links */
  70         __dev_t   st_dev;               /* inode's device */
  71         mode_t    st_mode;              /* inode protection mode */
  72         uint16_t  st_padding1;
  73         uid_t     st_uid;               /* user ID of the file's owner */
  74         gid_t     st_gid;               /* group ID of the file's group */
  75         __dev_t   st_rdev;              /* device type */
  76         struct  timespec st_atim;       /* time of last access */
  77         struct  timespec st_mtim;       /* time of last data modification */
  78         struct  timespec st_ctim;       /* time of last file status change */
  79         off_t     st_size;              /* file size, in bytes */
  80         int64_t   st_blocks;            /* blocks allocated for file */
  81         u_int32_t st_blksize;           /* optimal blocksize for I/O */
  82         u_int32_t st_flags;             /* user defined flags for file */
  83         u_int32_t st_gen;               /* file generation number */
  84         int32_t   st_lspare;
  85         int64_t   st_qspare1;           /* was recursive change detect */
  86         int64_t   st_qspare2;
  87 };
  88
  89 /*#define _ST_FSMID_PRESENT_*/
  90 #define _ST_FLAGS_PRESENT_
  91
  92 #undef __dev_t
  93
  94 #define st_atime st_atim.tv_sec
  95 #define st_mtime st_mtim.tv_sec
  96 #define st_ctime st_ctim.tv_sec
  97
  98 /* BSD compatibility */
  99 #if __BSD_VISIBLE
 100 #define st_atimespec st_atim
 101 #define st_mtimespec st_mtim
 102 #define st_ctimespec st_ctim
 103 #endif
 104
 105 /* Always ensure that these are consistent with <fcntl.h>! */
 106 #ifndef S_ISUID
 107 #define S_ISUID 0004000                 /* set user id on execution */
 108 #endif
 109 #ifndef S_ISGID
 110 #define S_ISGID 0002000                 /* set group id on execution */
 111 #endif
 112 #if __BSD_VISIBLE
 113 #define S_ISTXT 0001000                 /* sticky bit */
 114 #endif
 115
 116 #ifndef S_IRWXU
 117 #define S_IRWXU 0000700                 /* RWX mask for owner */
 118 #endif
 119 #ifndef S_IRUSR
 120 #define S_IRUSR 0000400                 /* R for owner */
 121 #endif
 122 #ifndef S_IWUSR
 123 #define S_IWUSR 0000200                 /* W for owner */
 124 #endif
 125 #ifndef S_IXUSR
 126 #define S_IXUSR 0000100                 /* X for owner */
 127 #endif
 128
 129 #if __BSD_VISIBLE
 130 #define S_IREAD         S_IRUSR
 131 #define S_IWRITE        S_IWUSR
 132 #define S_IEXEC         S_IXUSR
 133 #endif
 134
 135 #ifndef S_IRWXG
 136 #define S_IRWXG 0000070                 /* RWX mask for group */
 137 #endif
 138 #ifndef S_IRGRP
 139 #define S_IRGRP 0000040                 /* R for group */
 140 #endif
 141 #ifndef S_IWGRP
 142 #define S_IWGRP 0000020                 /* W for group */
 143 #endif
 144 #ifndef S_IXGRP
 145 #define S_IXGRP 0000010                 /* X for group */
 146 #endif
 147
 148 #ifndef S_IRWXO
 149 #define S_IRWXO 0000007                 /* RWX mask for other */
 150 #endif
 151 #ifndef S_IROTH
 152 #define S_IROTH 0000004                 /* R for other */
 153 #endif
 154 #ifndef S_IWOTH
 155 #define S_IWOTH 0000002                 /* W for other */
 156 #endif
 157 #ifndef S_IXOTH
 158 #define S_IXOTH 0000001                 /* X for other */
 159 #endif
 160
 161 #if __XSI_VISIBLE
 162 #define S_IFMT   0170000                /* type of file mask */
 163 #define S_IFIFO  0010000                /* named pipe (fifo) */
 164 #define S_IFCHR  0020000                /* character special */
 165 #define S_IFDIR  0040000                /* directory */
 166 #define S_IFBLK  0060000                /* block special */
 167 #define S_IFREG  0100000                /* regular */
 168 #define S_IFLNK  0120000                /* symbolic link */
 169 #define S_IFSOCK 0140000                /* socket */
 170 #define S_ISVTX  0001000                /* save swapped text even after use */
 171 #endif
 172 #if __BSD_VISIBLE
 173 #define S_IFDB   0110000                /* record access file */
 174 #define S_IFWHT  0160000                /* whiteout */
 175 #endif
 176
 177 #define S_ISDIR(m)      (((m) & 0170000) == 0040000)    /* directory */
 178 #define S_ISCHR(m)      (((m) & 0170000) == 0020000)    /* char special */
 179 #define S_ISBLK(m)      (((m) & 0170000) == 0060000)    /* block special */
 180 #define S_ISREG(m)      (((m) & 0170000) == 0100000)    /* regular file */
 181 #define S_ISDB(m)       (((m) & 0170000) == 0110000)    /* record access file */
 182 #define S_ISFIFO(m)     (((m) & 0170000) == 0010000)    /* fifo or socket */
 183 #if __POSIX_VISIBLE
 184 #define S_ISLNK(m)      (((m) & 0170000) == 0120000)    /* symbolic link */
 185 #define S_ISSOCK(m)     (((m) & 0170000) == 0140000)    /* socket */
 186 #endif
 187 #if __BSD_VISIBLE
 188 #define S_ISWHT(m)      (((m) & 0170000) == 0160000)    /* whiteout */
 189 #endif
 190
 191 /*
 192  * The value of `buf' is a pointer to a `stat' data structure. Since we don't
 193  * implement message queues as distinct file types, the following macro
 194  * evaluates to zero.
 195  * XXX: What about semaphores and shared memory objects ?
 196  */
 197 #define S_TYPEISMQ(buf)         (0)     /* message queue */
 198
 199 #if __BSD_VISIBLE
 200 #define ACCESSPERMS     (S_IRWXU|S_IRWXG|S_IRWXO)       /* 0777 */
 201                                                         /* 7777 */
 202 #define ALLPERMS        (S_ISUID|S_ISGID|S_ISTXT|S_IRWXU|S_IRWXG|S_IRWXO)
 203                                                         /* 0666 */
 204 #define DEFFILEMODE     (S_IRUSR|S_IWUSR|S_IRGRP|S_IWGRP|S_IROTH|S_IWOTH)
 205
 206 #define S_BLKSIZE       512             /* block size used in the stat struct */
 207
 208 /*
 209  * Definitions of flags stored in file flags word.
 210  *
 211  * Super-user and owner changeable flags.
 212  */
 213 #define UF_SETTABLE     0x0000ffff      /* mask of owner changeable flags */
 214 #define UF_NODUMP       0x00000001      /* do not dump file */
 215 #define UF_IMMUTABLE    0x00000002      /* file may not be changed */
 216 #define UF_APPEND       0x00000004      /* writes to file may only append */
 217 #define UF_OPAQUE       0x00000008      /* directory is opaque wrt. union */
 218 #define UF_NOUNLINK     0x00000010      /* file may not be removed or renamed */
 219 #define UF_FBSDRSVD20   0x00000020      /* (unused) */
 220 #define UF_NOHISTORY    0x00000040      /* do not retain history/snapshots */
 221 #define UF_CACHE        0x00000080      /* enable data swapcache */
 222 #define UF_XLINK        0x00000100      /* cross-link (hardlink) boundary */
 223
 224 /*
 225  * Super-user changeable flags.
 226  */
 227 #define SF_SETTABLE     0xffff0000      /* mask of superuser changeable flags */
 228 #define SF_ARCHIVED     0x00010000      /* file is archived */
 229 #define SF_IMMUTABLE    0x00020000      /* file may not be changed */
 230 #define SF_APPEND       0x00040000      /* writes to file may only append */
 231 #define SF_NOUNLINK     0x00100000      /* file may not be removed or renamed */
 232 #define SF_FBSDRSVD20   0x00200000      /* (used by FreeBSD for snapshots) */
 233 #define SF_NOHISTORY    0x00400000      /* do not retain history/snapshots */
 234 #define SF_NOCACHE      0x00800000      /* disable data swapcache */
 235 #define SF_XLINK        0x01000000      /* cross-link (hardlink) boundary */
 236
 237 #ifdef _KERNEL
 238 /*
 239  * Shorthand abbreviations of above.
 240  */
 241 #define OPAQUE          (UF_OPAQUE)
 242 #define APPEND          (UF_APPEND | SF_APPEND)
 243 #define IMMUTABLE       (UF_IMMUTABLE | SF_IMMUTABLE)
 244 #define NOUNLINK        (UF_NOUNLINK | SF_NOUNLINK)
 245 #endif
 246
 247 #endif /* __BSD_VISIBLE */
 248
 249 #if __POSIX_VISIBLE >= 200809
 250 #define UTIME_NOW       -1
 251 #define UTIME_OMIT      -2
 252 #endif
 253
 254 #if !defined(_KERNEL) || defined(_KERNEL_VIRTUAL)
 255
 256 __BEGIN_DECLS
 257 int     chmod(const char *, mode_t);
 258 int     fchmod(int, mode_t);
 259 #if __POSIX_VISIBLE >= 200809
 260 int     fchmodat(int, const char *, mode_t, int);
 261 int     futimens(int, const struct timespec *);
 262 int     utimensat(int, const char *, const struct timespec *, int);
 263 #endif
 264 int     fstat(int, struct stat *);
 265 #if __POSIX_VISIBLE >= 199506
 266 int     lstat(const char *, struct stat *);
 267 #endif
 268 int     mkdir(const char *, mode_t);
 269 int     mkfifo(const char *, mode_t);
 270 #if !defined(_MKNOD_DECLARED) && __XSI_VISIBLE
 271 int     mknod(const char *, mode_t, dev_t);
 272 #define _MKNOD_DECLARED
 273 #endif
 274 int     stat(const char *, struct stat *);
 275 mode_t  umask(mode_t);
 276 #if __POSIX_VISIBLE >= 200809
 277 int     fstatat(int, const char *, struct stat *, int);
 278 int     mkdirat(int, const char *, mode_t);
 279 int     mkfifoat(int, const char *, mode_t);
 280 #endif
 281 #if __XSI_VISIBLE >= 700
 282 int     mknodat(int, const char *, mode_t, dev_t);
 283 #endif
 284 #if __BSD_VISIBLE
 285 int     chflags(const char *, u_long);
 286 int     fchflags(int, u_long);
 287 int     lchflags(const char *, u_long);
 288 int     chflagsat(int, const char *, u_long, int);
 289 int     lchmod(const char *, mode_t);
 290 #endif
 291 __END_DECLS
 292
 293 #endif
 294
 295 #endif /* !_SYS_STAT_H_ */