The Design and Implementation of the FreeBSD Operating System, Second Edition
Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)


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FreeBSD/Linux Kernel Cross Reference
sys/sys/stat.h

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    1 /*      $NetBSD: stat.h,v 1.46 2003/11/04 00:00:36 kleink Exp $ */
    2 
    3 /*-
    4  * Copyright (c) 1982, 1986, 1989, 1993
    5  *      The Regents of the University of California.  All rights reserved.
    6  * (c) UNIX System Laboratories, Inc.
    7  * All or some portions of this file are derived from material licensed
    8  * to the University of California by American Telephone and Telegraph
    9  * Co. or Unix System Laboratories, Inc. and are reproduced herein with
   10  * the permission of UNIX System Laboratories, Inc.
   11  *
   12  * Redistribution and use in source and binary forms, with or without
   13  * modification, are permitted provided that the following conditions
   14  * are met:
   15  * 1. Redistributions of source code must retain the above copyright
   16  *    notice, this list of conditions and the following disclaimer.
   17  * 2. Redistributions in binary form must reproduce the above copyright
   18  *    notice, this list of conditions and the following disclaimer in the
   19  *    documentation and/or other materials provided with the distribution.
   20  * 3. Neither the name of the University nor the names of its contributors
   21  *    may be used to endorse or promote products derived from this software
   22  *    without specific prior written permission.
   23  *
   24  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
   25  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
   26  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
   27  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
   28  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
   29  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
   30  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
   31  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
   32  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
   33  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
   34  * SUCH DAMAGE.
   35  *
   36  *      @(#)stat.h      8.12 (Berkeley) 8/17/94
   37  */
   38 
   39 #ifndef _SYS_STAT_H_
   40 #define _SYS_STAT_H_
   41 
   42 #include <sys/featuretest.h>
   43 #include <sys/types.h>          /* XXX */
   44 
   45 #if defined(_NETBSD_SOURCE)
   46 #include <sys/time.h>
   47 #endif
   48 
   49 #ifdef _KERNEL
   50 struct stat43 {                         /* BSD-4.3 stat struct */
   51         u_int16_t st_dev;               /* inode's device */
   52         ino_t     st_ino;               /* inode's number */
   53         u_int16_t st_mode;              /* inode protection mode */
   54         u_int16_t st_nlink;             /* number of hard links */
   55         u_int16_t st_uid;               /* user ID of the file's owner */
   56         u_int16_t st_gid;               /* group ID of the file's group */
   57         u_int16_t st_rdev;              /* device type */
   58         int32_t   st_size;              /* file size, in bytes */
   59         struct    timespec st_atimespec;/* time of last access */
   60         struct    timespec st_mtimespec;/* time of last data modification */
   61         struct    timespec st_ctimespec;/* time of last file status change */
   62         int32_t   st_blksize;           /* optimal blocksize for I/O */
   63         int32_t   st_blocks;            /* blocks allocated for file */
   64         u_int32_t st_flags;             /* user defined flags for file */
   65         u_int32_t st_gen;               /* file generation number */
   66 };
   67 #endif /* defined(_KERNEL) */
   68 
   69 #if defined(__LIBC12_SOURCE__) || defined(_KERNEL)
   70 struct stat12 {                         /* NetBSD-1.2 stat struct */
   71         dev_t     st_dev;               /* inode's device */
   72         ino_t     st_ino;               /* inode's number */
   73         u_int16_t st_mode;              /* inode protection mode */
   74         u_int16_t st_nlink;             /* number of hard links */
   75         uid_t     st_uid;               /* user ID of the file's owner */
   76         gid_t     st_gid;               /* group ID of the file's group */
   77         dev_t     st_rdev;              /* device type */
   78         struct    timespec st_atimespec;/* time of last access */
   79         struct    timespec st_mtimespec;/* time of last data modification */
   80         struct    timespec st_ctimespec;/* time of last file status change */
   81         off_t     st_size;              /* file size, in bytes */
   82         int64_t   st_blocks;            /* blocks allocated for file */
   83         u_int32_t st_blksize;           /* optimal blocksize for I/O */
   84         u_int32_t st_flags;             /* user defined flags for file */
   85         u_int32_t st_gen;               /* file generation number */
   86         int32_t   st_lspare;
   87         int64_t   st_qspare[2];
   88 };
   89 #endif /* defined(__LIBC12_SOURCE__) || defined(_KERNEL) */
   90 
   91 /*
   92  * On systems with 8 byte longs and 4 byte time_ts, padding the time_ts
   93  * is required in order to have a consistent ABI.  This is because the
   94  * stat structure used to contain timespecs, which had different
   95  * alignment constraints than a time_t and a long alone.  The padding
   96  * should be removed the next time the stat structure ABI is changed.
   97  * (This will happen whever we change to 8 byte time_t.)
   98  */
   99 #if defined(_LP64)      /* XXXX  && _BSD_TIME_T_ == int */
  100 #define __STATPAD(x)    int x;
  101 #else
  102 #define __STATPAD(x)    /* nothing */
  103 #endif
  104 
  105 struct stat {
  106         dev_t     st_dev;               /* inode's device */
  107         ino_t     st_ino;               /* inode's number */
  108         mode_t    st_mode;              /* inode protection mode */
  109         nlink_t   st_nlink;             /* number of hard links */
  110         uid_t     st_uid;               /* user ID of the file's owner */
  111         gid_t     st_gid;               /* group ID of the file's group */
  112         dev_t     st_rdev;              /* device type */
  113 #if defined(_NETBSD_SOURCE)
  114         struct    timespec st_atimespec;/* time of last access */
  115         struct    timespec st_mtimespec;/* time of last data modification */
  116         struct    timespec st_ctimespec;/* time of last file status change */
  117 #else
  118         __STATPAD(__pad0)
  119         time_t    st_atime;             /* time of last access */
  120         __STATPAD(__pad1)
  121         long      st_atimensec;         /* nsec of last access */
  122         time_t    st_mtime;             /* time of last data modification */
  123         __STATPAD(__pad2)
  124         long      st_mtimensec;         /* nsec of last data modification */
  125         time_t    st_ctime;             /* time of last file status change */
  126         __STATPAD(__pad3)
  127         long      st_ctimensec;         /* nsec of last file status change */
  128 #endif
  129         off_t     st_size;              /* file size, in bytes */
  130         blkcnt_t  st_blocks;            /* blocks allocated for file */
  131         blksize_t st_blksize;           /* optimal blocksize for I/O */
  132         u_int32_t st_flags;             /* user defined flags for file */
  133         u_int32_t st_gen;               /* file generation number */
  134         u_int32_t st_spare0;
  135 #if defined(_NETBSD_SOURCE)
  136         struct timespec st_birthtimespec;
  137 #else
  138         time_t    st_birthtime;
  139         __STATPAD(__pad4)
  140         long      st_birthtimensec;
  141 #endif
  142 #if !defined(_LP64)
  143         int     __pad5;
  144 #endif
  145 };
  146 
  147 #undef __STATPAD
  148 
  149 #if defined(_NETBSD_SOURCE)
  150 #define st_atime                st_atimespec.tv_sec
  151 #define st_atimensec            st_atimespec.tv_nsec
  152 #define st_mtime                st_mtimespec.tv_sec
  153 #define st_mtimensec            st_mtimespec.tv_nsec
  154 #define st_ctime                st_ctimespec.tv_sec
  155 #define st_ctimensec            st_ctimespec.tv_nsec
  156 #define st_birthtime            st_birthtimespec.tv_sec
  157 #define st_birthtimensec        st_birthtimespec.tv_nsec
  158 #endif
  159 
  160 #define S_ISUID 0004000                 /* set user id on execution */
  161 #define S_ISGID 0002000                 /* set group id on execution */
  162 #if defined(_NETBSD_SOURCE)
  163 #define S_ISTXT 0001000                 /* sticky bit */
  164 #endif
  165 
  166 #define S_IRWXU 0000700                 /* RWX mask for owner */
  167 #define S_IRUSR 0000400                 /* R for owner */
  168 #define S_IWUSR 0000200                 /* W for owner */
  169 #define S_IXUSR 0000100                 /* X for owner */
  170 
  171 #if defined(_NETBSD_SOURCE)
  172 #define S_IREAD         S_IRUSR
  173 #define S_IWRITE        S_IWUSR
  174 #define S_IEXEC         S_IXUSR
  175 #endif
  176 
  177 #define S_IRWXG 0000070                 /* RWX mask for group */
  178 #define S_IRGRP 0000040                 /* R for group */
  179 #define S_IWGRP 0000020                 /* W for group */
  180 #define S_IXGRP 0000010                 /* X for group */
  181 
  182 #define S_IRWXO 0000007                 /* RWX mask for other */
  183 #define S_IROTH 0000004                 /* R for other */
  184 #define S_IWOTH 0000002                 /* W for other */
  185 #define S_IXOTH 0000001                 /* X for other */
  186 
  187 #define _S_IFMT   0170000               /* type of file mask */
  188 #define _S_IFIFO  0010000               /* named pipe (fifo) */
  189 #define _S_IFCHR  0020000               /* character special */
  190 #define _S_IFDIR  0040000               /* directory */
  191 #define _S_IFBLK  0060000               /* block special */
  192 #define _S_IFREG  0100000               /* regular */
  193 #define _S_IFLNK  0120000               /* symbolic link */
  194 #define _S_ISVTX  0001000               /* save swapped text even after use */
  195 #define _S_IFSOCK 0140000               /* socket */
  196 #define _S_IFWHT  0160000               /* whiteout */
  197 #define _S_ARCH1  0200000               /* Archive state 1, ls -l shows 'a' */
  198 #define _S_ARCH2  0400000               /* Archive state 2, ls -l shows 'A' */
  199 
  200 #if defined(_XOPEN_SOURCE) || defined(_NETBSD_SOURCE)
  201 #define S_IFMT   _S_IFMT
  202 #define S_IFIFO  _S_IFIFO
  203 #define S_IFCHR  _S_IFCHR
  204 #define S_IFDIR  _S_IFDIR
  205 #define S_IFBLK  _S_IFBLK
  206 #define S_IFREG  _S_IFREG
  207 #define S_IFLNK  _S_IFLNK
  208 #define S_ISVTX  _S_ISVTX
  209 #endif
  210 #if ((_XOPEN_SOURCE - 0) >= 600) || defined(_NETBSD_SOURCE)
  211 #define S_IFSOCK _S_IFSOCK
  212 #endif
  213 #if defined(_NETBSD_SOURCE)
  214 #define S_IFWHT  _S_IFWHT
  215 
  216 #define S_ARCH1 _S_ARCH1
  217 #define S_ARCH2 _S_ARCH2
  218 #endif
  219 
  220 #define S_ISDIR(m)      ((m & _S_IFMT) == _S_IFDIR)     /* directory */
  221 #define S_ISCHR(m)      ((m & _S_IFMT) == _S_IFCHR)     /* char special */
  222 #define S_ISBLK(m)      ((m & _S_IFMT) == _S_IFBLK)     /* block special */
  223 #define S_ISREG(m)      ((m & _S_IFMT) == _S_IFREG)     /* regular file */
  224 #define S_ISFIFO(m)     ((m & _S_IFMT) == _S_IFIFO)     /* fifo */
  225 #if ((_POSIX_C_SOURCE - 0) >= 200112L) || defined(_XOPEN_SOURCE) || \
  226     defined(_NETBSD_SOURCE)
  227 #define S_ISLNK(m)      ((m & _S_IFMT) == _S_IFLNK)     /* symbolic link */
  228 #endif
  229 #if ((_POSIX_C_SOURCE - 0) >= 200112L) || ((_XOPEN_SOURCE - 0) >= 600) || \
  230     defined(_NETBSD_SOURCE)
  231 #define S_ISSOCK(m)     ((m & _S_IFMT) == _S_IFSOCK)    /* socket */
  232 #endif
  233 #if defined(_NETBSD_SOURCE)
  234 #define S_ISWHT(m)      ((m & _S_IFMT) == _S_IFWHT)     /* whiteout */
  235 #endif
  236 
  237 #if defined(_NETBSD_SOURCE)
  238 #define ACCESSPERMS     (S_IRWXU|S_IRWXG|S_IRWXO)       /* 0777 */
  239                                                         /* 7777 */
  240 #define ALLPERMS        (S_ISUID|S_ISGID|S_ISTXT|S_IRWXU|S_IRWXG|S_IRWXO)
  241                                                         /* 0666 */
  242 #define DEFFILEMODE     (S_IRUSR|S_IWUSR|S_IRGRP|S_IWGRP|S_IROTH|S_IWOTH)
  243 
  244 #define S_BLKSIZE       512             /* block size used in the stat struct */
  245 
  246 /*
  247  * Definitions of flags stored in file flags word.
  248  *
  249  * Super-user and owner changeable flags.
  250  */
  251 #define UF_SETTABLE     0x0000ffff      /* mask of owner changeable flags */
  252 #define UF_NODUMP       0x00000001      /* do not dump file */
  253 #define UF_IMMUTABLE    0x00000002      /* file may not be changed */
  254 #define UF_APPEND       0x00000004      /* writes to file may only append */
  255 #define UF_OPAQUE       0x00000008      /* directory is opaque wrt. union */
  256 /*
  257  * Super-user changeable flags.
  258  */
  259 #define SF_SETTABLE     0xffff0000      /* mask of superuser changeable flags */
  260 #define SF_ARCHIVED     0x00010000      /* file is archived */
  261 #define SF_IMMUTABLE    0x00020000      /* file may not be changed */
  262 #define SF_APPEND       0x00040000      /* writes to file may only append */
  263 
  264 #ifdef _KERNEL
  265 /*
  266  * Shorthand abbreviations of above.
  267  */
  268 #define OPAQUE          (UF_OPAQUE)
  269 #define APPEND          (UF_APPEND | SF_APPEND)
  270 #define IMMUTABLE       (UF_IMMUTABLE | SF_IMMUTABLE)
  271 #endif /* _KERNEL */
  272 #endif /* _NETBSD_SOURCE */
  273 
  274 #if !defined(_KERNEL) && !defined(_STANDALONE)
  275 #include <sys/cdefs.h>
  276 
  277 __BEGIN_DECLS
  278 int     chmod __P((const char *, mode_t));
  279 int     mkdir __P((const char *, mode_t));
  280 int     mkfifo __P((const char *, mode_t));
  281 #ifdef __LIBC12_SOURCE__
  282 int     stat __P((const char *, struct stat12 *));
  283 int     fstat __P((int, struct stat12 *));
  284 int     __stat13 __P((const char *, struct stat *));
  285 int     __fstat13 __P((int, struct stat *));
  286 #else
  287 int     stat __P((const char *, struct stat *)) __RENAME(__stat13);
  288 int     fstat __P((int, struct stat *))         __RENAME(__fstat13);
  289 #endif
  290 mode_t  umask __P((mode_t));
  291 #if defined(_XOPEN_SOURCE) || defined(_NETBSD_SOURCE)
  292 int     fchmod __P((int, mode_t));
  293 #ifdef __LIBC12_SOURCE__
  294 int     lstat __P((const char *, struct stat12 *));
  295 int     __lstat13 __P((const char *, struct stat *));
  296 #else
  297 int     lstat __P((const char *, struct stat *))        __RENAME(__lstat13);
  298 #endif
  299 int     mknod __P((const char *, mode_t, dev_t));
  300 #endif /* defined(_XOPEN_SOURCE) || defined(_NETBSD_SOURCE) */
  301 
  302 #if defined(_NETBSD_SOURCE)
  303 int     chflags __P((const char *, unsigned long));
  304 int     fchflags __P((int, unsigned long));
  305 int     lchflags __P((const char *, unsigned long));
  306 int     lchmod __P((const char *, mode_t));
  307 #endif /* defined(_NETBSD_SOURCE) */
  308 __END_DECLS
  309 
  310 #endif /* !_KERNEL && !_STANDALONE */
  311 #endif /* !_SYS_STAT_H_ */

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