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  * $DragonFly: src/sys/sys/stat.h,v 1.14 2008/11/11 00:55:49 pavalos Exp $
  37  */
  38
  39 #ifndef _SYS_STAT_H_
  40 #define _SYS_STAT_H_
  41
  42 #if !defined(_POSIX_SOURCE)
  43 /*
  44  * XXX we need this for struct timespec.  We get miscellaneous namespace
  45  * pollution with it.
  46  */
  47 #ifndef _SYS_TIME_H_
  48 #include <sys/time.h>
  49 #endif
  50 #else   /* !_POSIX_SOURCE */
  51 #include <sys/_timespec.h>
  52 #endif  /* _POSIX_SOURCE */
  53
  54 #ifdef _KERNEL
  55 #define __dev_t udev_t
  56 #else
  57 #define __dev_t dev_t
  58 #endif
  59
  60 /*
  61  * stat structure notes:
  62  *
  63  * NOTE: st_fsmid removed in DragonFly 2.5.x.
  64  */
  65 struct stat {
  66         ino_t     st_ino;               /* inode's number */
  67         nlink_t   st_nlink;             /* number of hard links */
  68         __dev_t   st_dev;               /* inode's device */
  69         mode_t    st_mode;              /* inode protection mode */
  70         uint16_t  st_padding1;
  71         uid_t     st_uid;               /* user ID of the file's owner */
  72         gid_t     st_gid;               /* group ID of the file's group */
  73         __dev_t   st_rdev;              /* device type */
  74         struct  timespec st_atim;       /* time of last access */
  75         struct  timespec st_mtim;       /* time of last data modification */
  76         struct  timespec st_ctim;       /* time of last file status change */
  77         off_t     st_size;              /* file size, in bytes */
  78         int64_t   st_blocks;            /* blocks allocated for file */
  79         u_int32_t st_blksize;           /* optimal blocksize for I/O */
  80         u_int32_t st_flags;             /* user defined flags for file */
  81         u_int32_t st_gen;               /* file generation number */
  82         int32_t   st_lspare;
  83         int64_t   st_qspare1;           /* was recursive change detect */
  84         int64_t   st_qspare2;
  85 };
  86
  87 /*#define _ST_FSMID_PRESENT_*/
  88 #define _ST_FLAGS_PRESENT_
  89
  90 #undef __dev_t
  91
  92 #define st_atime st_atim.tv_sec
  93 #define st_mtime st_mtim.tv_sec
  94 #define st_ctime st_ctim.tv_sec
  95
  96 /* BSD compatibility */
  97 #ifndef _POSIX_SOURCE
  98 #define st_atimespec st_atim
  99 #define st_mtimespec st_mtim
 100 #define st_ctimespec st_ctim
 101 #endif
 102
 103 #define S_ISUID 0004000                 /* set user id on execution */
 104 #define S_ISGID 0002000                 /* set group id on execution */
 105 #ifndef _POSIX_SOURCE
 106 #define S_ISTXT 0001000                 /* sticky bit */
 107 #endif
 108
 109 #define S_IRWXU 0000700                 /* RWX mask for owner */
 110 #define S_IRUSR 0000400                 /* R for owner */
 111 #define S_IWUSR 0000200                 /* W for owner */
 112 #define S_IXUSR 0000100                 /* X for owner */
 113
 114 #ifndef _POSIX_SOURCE
 115 #define S_IREAD         S_IRUSR
 116 #define S_IWRITE        S_IWUSR
 117 #define S_IEXEC         S_IXUSR
 118 #endif
 119
 120 #define S_IRWXG 0000070                 /* RWX mask for group */
 121 #define S_IRGRP 0000040                 /* R for group */
 122 #define S_IWGRP 0000020                 /* W for group */
 123 #define S_IXGRP 0000010                 /* X for group */
 124
 125 #define S_IRWXO 0000007                 /* RWX mask for other */
 126 #define S_IROTH 0000004                 /* R for other */
 127 #define S_IWOTH 0000002                 /* W for other */
 128 #define S_IXOTH 0000001                 /* X for other */
 129
 130 #ifndef _POSIX_SOURCE
 131 #define S_IFMT   0170000                /* type of file mask */
 132 #define S_IFIFO  0010000                /* named pipe (fifo) */
 133 #define S_IFCHR  0020000                /* character special */
 134 #define S_IFDIR  0040000                /* directory */
 135 #define S_IFBLK  0060000                /* block special */
 136 #define S_IFREG  0100000                /* regular */
 137 #define S_IFDB   0110000                /* record access file */
 138 #define S_IFLNK  0120000                /* symbolic link */
 139 #define S_IFSOCK 0140000                /* socket */
 140 #define S_IFWHT  0160000                /* whiteout */
 141 #define S_ISVTX  0001000                /* save swapped text even after use */
 142 #endif
 143
 144 #define S_ISDIR(m)      (((m) & 0170000) == 0040000)    /* directory */
 145 #define S_ISCHR(m)      (((m) & 0170000) == 0020000)    /* char special */
 146 #define S_ISBLK(m)      (((m) & 0170000) == 0060000)    /* block special */
 147 #define S_ISREG(m)      (((m) & 0170000) == 0100000)    /* regular file */
 148 #define S_ISDB(m)       (((m) & 0170000) == 0110000)    /* record access file */
 149 #define S_ISFIFO(m)     (((m) & 0170000) == 0010000)    /* fifo or socket */
 150 #ifndef _POSIX_SOURCE
 151 #define S_ISLNK(m)      (((m) & 0170000) == 0120000)    /* symbolic link */
 152 #define S_ISSOCK(m)     (((m) & 0170000) == 0140000)    /* socket */
 153 #define S_ISWHT(m)      (((m) & 0170000) == 0160000)    /* whiteout */
 154 #endif
 155
 156 /*
 157  * The value of `buf' is a pointer to a `stat' data structure. Since we don't
 158  * implement message queues as distinct file types, the following macro
 159  * evaluates to zero.
 160  * XXX: What about semaphores and shared memory objects ?
 161  */
 162 #define S_TYPEISMQ(buf)         (0)     /* message queue */
 163
 164 #ifndef _POSIX_SOURCE
 165 #define ACCESSPERMS     (S_IRWXU|S_IRWXG|S_IRWXO)       /* 0777 */
 166                                                         /* 7777 */
 167 #define ALLPERMS        (S_ISUID|S_ISGID|S_ISTXT|S_IRWXU|S_IRWXG|S_IRWXO)
 168                                                         /* 0666 */
 169 #define DEFFILEMODE     (S_IRUSR|S_IWUSR|S_IRGRP|S_IWGRP|S_IROTH|S_IWOTH)
 170
 171 #define S_BLKSIZE       512             /* block size used in the stat struct */
 172
 173 /*
 174  * Definitions of flags stored in file flags word.
 175  *
 176  * Super-user and owner changeable flags.
 177  */
 178 #define UF_SETTABLE     0x0000ffff      /* mask of owner changeable flags */
 179 #define UF_NODUMP       0x00000001      /* do not dump file */
 180 #define UF_IMMUTABLE    0x00000002      /* file may not be changed */
 181 #define UF_APPEND       0x00000004      /* writes to file may only append */
 182 #define UF_OPAQUE       0x00000008      /* directory is opaque wrt. union */
 183 #define UF_NOUNLINK     0x00000010      /* file may not be removed or renamed */
 184 #define UF_FBSDRSVD20   0x00000020      /* (unused) */
 185 #define UF_NOHISTORY    0x00000040      /* do not retain history/snapshots */
 186 #define UF_CACHE        0x00000080      /* enable data swapcache */
 187 /*
 188  * Super-user changeable flags.
 189  */
 190 #define SF_SETTABLE     0xffff0000      /* mask of superuser changeable flags */
 191 #define SF_ARCHIVED     0x00010000      /* file is archived */
 192 #define SF_IMMUTABLE    0x00020000      /* file may not be changed */
 193 #define SF_APPEND       0x00040000      /* writes to file may only append */
 194 #define SF_NOUNLINK     0x00100000      /* file may not be removed or renamed */
 195 #define SF_FBSDRSVD20   0x00200000      /* (used by FreeBSD for snapshots) */
 196 #define SF_NOHISTORY    0x00400000      /* do not retain history/snapshots */
 197 #define SF_NOCACHE      0x00800000      /* disable data swapcache */
 198
 199 #ifdef _KERNEL
 200 /*
 201  * Shorthand abbreviations of above.
 202  */
 203 #define OPAQUE          (UF_OPAQUE)
 204 #define APPEND          (UF_APPEND | SF_APPEND)
 205 #define IMMUTABLE       (UF_IMMUTABLE | SF_IMMUTABLE)
 206 #define NOUNLINK        (UF_NOUNLINK | SF_NOUNLINK)
 207 #endif
 208
 209 #endif /* !_POSIX_SOURCE */
 210
 211 #if !defined(_KERNEL) || defined(_KERNEL_VIRTUAL)
 212 #include <sys/cdefs.h>
 213
 214 __BEGIN_DECLS
 215 int     chmod (const char *, mode_t);
 216 int     fchmodat (int, const char *, mode_t, int);
 217 int     fstat (int, struct stat *);
 218 int     fstatat (int, const char *, struct stat *, int);
 219 int     mkdir (const char *, mode_t);
 220 int     mkfifo (const char *, mode_t);
 221 #if !defined(_MKNOD_DECLARED) && __XSI_VISIBLE
 222 int     mknod(const char *, mode_t, dev_t);
 223 #define _MKNOD_DECLARED
 224 #endif
 225 int     stat (const char *, struct stat *);
 226 mode_t  umask (mode_t);
 227
 228 #ifndef _POSIX_SOURCE
 229 int     chflags (const char *, u_long);
 230 int     fchflags (int, u_long);
 231 int     lchflags (const char *, u_long);
 232 int     fchmod (int, mode_t);
 233 int     lchmod (const char *, mode_t);
 234 int     lstat (const char *, struct stat *);
 235 #endif
 236 __END_DECLS
 237
 238 #endif
 239
 240 #endif /* !_SYS_STAT_H_ */