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 1.54.18.1 2009/12/16 11:17:39 sborrill 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 /*
   50  * On systems with 8 byte longs and 4 byte time_ts, padding the time_ts
   51  * is required in order to have a consistent ABI.  This is because the
   52  * stat structure used to contain timespecs, which had different
   53  * alignment constraints than a time_t and a long alone.  The padding
   54  * should be removed the next time the stat structure ABI is changed.
   55  * (This will happen whever we change to 8 byte time_t.)
   56  */
   57 #if defined(_LP64)      /* XXXX  && _BSD_TIME_T_ == int */
   58 #define __STATPAD(x)    int x;
   59 #else
   60 #define __STATPAD(x)    /* nothing */
   61 #endif
   62 
   63 struct stat {
   64         dev_t     st_dev;               /* inode's device */
   65         mode_t    st_mode;              /* inode protection mode */
   66         ino_t     st_ino;               /* inode's number */
   67         nlink_t   st_nlink;             /* number of hard links */
   68         uid_t     st_uid;               /* user ID of the file's owner */
   69         gid_t     st_gid;               /* group ID of the file's group */
   70         dev_t     st_rdev;              /* device type */
   71 #if defined(_NETBSD_SOURCE)
   72         struct    timespec st_atimespec;/* time of last access */
   73         struct    timespec st_mtimespec;/* time of last data modification */
   74         struct    timespec st_ctimespec;/* time of last file status change */
   75         struct    timespec st_birthtimespec; /* time of creation */
   76 #else
   77         time_t    st_atime;             /* time of last access */
   78         __STATPAD(__pad0)
   79         long      st_atimensec;         /* nsec of last access */
   80         time_t    st_mtime;             /* time of last data modification */
   81         __STATPAD(__pad1)
   82         long      st_mtimensec;         /* nsec of last data modification */
   83         time_t    st_ctime;             /* time of last file status change */
   84         __STATPAD(__pad2)
   85         long      st_ctimensec;         /* nsec of last file status change */
   86         time_t    st_birthtime;         /* time of creation */
   87         __STATPAD(__pad3)
   88         long      st_birthtimensec;     /* nsec of time of creation */
   89 #endif
   90         off_t     st_size;              /* file size, in bytes */
   91         blkcnt_t  st_blocks;            /* blocks allocated for file */
   92         blksize_t st_blksize;           /* optimal blocksize for I/O */
   93         uint32_t  st_flags;             /* user defined flags for file */
   94         uint32_t  st_gen;               /* file generation number */
   95         uint32_t  st_spare[2];
   96 };
   97 
   98 #undef __STATPAD
   99 
  100 #if defined(_NETBSD_SOURCE)
  101 #define st_atime                st_atimespec.tv_sec
  102 #define st_atimensec            st_atimespec.tv_nsec
  103 #define st_mtime                st_mtimespec.tv_sec
  104 #define st_mtimensec            st_mtimespec.tv_nsec
  105 #define st_ctime                st_ctimespec.tv_sec
  106 #define st_ctimensec            st_ctimespec.tv_nsec
  107 #define st_birthtime            st_birthtimespec.tv_sec
  108 #define st_birthtimensec        st_birthtimespec.tv_nsec
  109 #endif
  110 
  111 #define S_ISUID 0004000                 /* set user id on execution */
  112 #define S_ISGID 0002000                 /* set group id on execution */
  113 #if defined(_NETBSD_SOURCE)
  114 #define S_ISTXT 0001000                 /* sticky bit */
  115 #endif
  116 
  117 #define S_IRWXU 0000700                 /* RWX mask for owner */
  118 #define S_IRUSR 0000400                 /* R for owner */
  119 #define S_IWUSR 0000200                 /* W for owner */
  120 #define S_IXUSR 0000100                 /* X for owner */
  121 
  122 #if defined(_NETBSD_SOURCE)
  123 #define S_IREAD         S_IRUSR
  124 #define S_IWRITE        S_IWUSR
  125 #define S_IEXEC         S_IXUSR
  126 #endif
  127 
  128 #define S_IRWXG 0000070                 /* RWX mask for group */
  129 #define S_IRGRP 0000040                 /* R for group */
  130 #define S_IWGRP 0000020                 /* W for group */
  131 #define S_IXGRP 0000010                 /* X for group */
  132 
  133 #define S_IRWXO 0000007                 /* RWX mask for other */
  134 #define S_IROTH 0000004                 /* R for other */
  135 #define S_IWOTH 0000002                 /* W for other */
  136 #define S_IXOTH 0000001                 /* X for other */
  137 
  138 #define _S_IFMT   0170000               /* type of file mask */
  139 #define _S_IFIFO  0010000               /* named pipe (fifo) */
  140 #define _S_IFCHR  0020000               /* character special */
  141 #define _S_IFDIR  0040000               /* directory */
  142 #define _S_IFBLK  0060000               /* block special */
  143 #define _S_IFREG  0100000               /* regular */
  144 #define _S_IFLNK  0120000               /* symbolic link */
  145 #define _S_ISVTX  0001000               /* save swapped text even after use */
  146 #define _S_IFSOCK 0140000               /* socket */
  147 #define _S_IFWHT  0160000               /* whiteout */
  148 #define _S_ARCH1  0200000               /* Archive state 1, ls -l shows 'a' */
  149 #define _S_ARCH2  0400000               /* Archive state 2, ls -l shows 'A' */
  150 
  151 #if defined(_XOPEN_SOURCE) || defined(_NETBSD_SOURCE)
  152 #define S_IFMT   _S_IFMT
  153 #define S_IFIFO  _S_IFIFO
  154 #define S_IFCHR  _S_IFCHR
  155 #define S_IFDIR  _S_IFDIR
  156 #define S_IFBLK  _S_IFBLK
  157 #define S_IFREG  _S_IFREG
  158 #define S_IFLNK  _S_IFLNK
  159 #define S_ISVTX  _S_ISVTX
  160 #endif
  161 #if ((_XOPEN_SOURCE - 0) >= 600) || defined(_NETBSD_SOURCE)
  162 #define S_IFSOCK _S_IFSOCK
  163 #endif
  164 #if defined(_NETBSD_SOURCE)
  165 #define S_IFWHT  _S_IFWHT
  166 
  167 #define S_ARCH1 _S_ARCH1
  168 #define S_ARCH2 _S_ARCH2
  169 #endif
  170 
  171 #define S_ISDIR(m)      (((m) & _S_IFMT) == _S_IFDIR)   /* directory */
  172 #define S_ISCHR(m)      (((m) & _S_IFMT) == _S_IFCHR)   /* char special */
  173 #define S_ISBLK(m)      (((m) & _S_IFMT) == _S_IFBLK)   /* block special */
  174 #define S_ISREG(m)      (((m) & _S_IFMT) == _S_IFREG)   /* regular file */
  175 #define S_ISFIFO(m)     (((m) & _S_IFMT) == _S_IFIFO)   /* fifo */
  176 #if ((_POSIX_C_SOURCE - 0) >= 200112L) || defined(_XOPEN_SOURCE) || \
  177     defined(_NETBSD_SOURCE)
  178 #define S_ISLNK(m)      (((m) & _S_IFMT) == _S_IFLNK)   /* symbolic link */
  179 #endif
  180 #if ((_POSIX_C_SOURCE - 0) >= 200112L) || ((_XOPEN_SOURCE - 0) >= 600) || \
  181     defined(_NETBSD_SOURCE)
  182 #define S_ISSOCK(m)     (((m) & _S_IFMT) == _S_IFSOCK)  /* socket */
  183 #endif
  184 #if defined(_NETBSD_SOURCE)
  185 #define S_ISWHT(m)      (((m) & _S_IFMT) == _S_IFWHT)   /* whiteout */
  186 #endif
  187 
  188 #if defined(_NETBSD_SOURCE)
  189 #define ACCESSPERMS     (S_IRWXU|S_IRWXG|S_IRWXO)       /* 0777 */
  190                                                         /* 7777 */
  191 #define ALLPERMS        (S_ISUID|S_ISGID|S_ISTXT|S_IRWXU|S_IRWXG|S_IRWXO)
  192                                                         /* 0666 */
  193 #define DEFFILEMODE     (S_IRUSR|S_IWUSR|S_IRGRP|S_IWGRP|S_IROTH|S_IWOTH)
  194 
  195 #define S_BLKSIZE       512             /* block size used in the stat struct */
  196 
  197 /*
  198  * Definitions of flags stored in file flags word.
  199  *
  200  * Super-user and owner changeable flags.
  201  */
  202 #define UF_SETTABLE     0x0000ffff      /* mask of owner changeable flags */
  203 #define UF_NODUMP       0x00000001      /* do not dump file */
  204 #define UF_IMMUTABLE    0x00000002      /* file may not be changed */
  205 #define UF_APPEND       0x00000004      /* writes to file may only append */
  206 #define UF_OPAQUE       0x00000008      /* directory is opaque wrt. union */
  207 /*      UF_NOUNLINK     0x00000010         [NOT IMPLEMENTED] */
  208 /*
  209  * Super-user changeable flags.
  210  */
  211 #define SF_SETTABLE     0xffff0000      /* mask of superuser changeable flags */
  212 #define SF_ARCHIVED     0x00010000      /* file is archived */
  213 #define SF_IMMUTABLE    0x00020000      /* file may not be changed */
  214 #define SF_APPEND       0x00040000      /* writes to file may only append */
  215 /*      SF_NOUNLINK     0x00100000         [NOT IMPLEMENTED] */
  216 #define SF_SNAPSHOT     0x00200000      /* snapshot inode */
  217 
  218 #ifdef _KERNEL
  219 /*
  220  * Shorthand abbreviations of above.
  221  */
  222 #define OPAQUE          (UF_OPAQUE)
  223 #define APPEND          (UF_APPEND | SF_APPEND)
  224 #define IMMUTABLE       (UF_IMMUTABLE | SF_IMMUTABLE)
  225 #endif /* _KERNEL */
  226 #endif /* _NETBSD_SOURCE */
  227 
  228 #if !defined(_KERNEL) && !defined(_STANDALONE)
  229 #include <sys/cdefs.h>
  230 
  231 __BEGIN_DECLS
  232 int     chmod(const char *, mode_t);
  233 int     mkdir(const char *, mode_t);
  234 int     mkfifo(const char *, mode_t);
  235 #ifndef __LIBC12_SOURCE__
  236 int     stat(const char *, struct stat *) __RENAME(__stat30);
  237 int     fstat(int, struct stat *) __RENAME(__fstat30);
  238 #endif
  239 mode_t  umask(mode_t);
  240 #if defined(_XOPEN_SOURCE) || defined(_NETBSD_SOURCE)
  241 int     fchmod(int, mode_t);
  242 #ifndef __LIBC12_SOURCE__
  243 int     lstat(const char *, struct stat *) __RENAME(__lstat30);
  244 #endif
  245 int     mknod(const char *, mode_t, dev_t);
  246 #endif /* defined(_XOPEN_SOURCE) || defined(_NETBSD_SOURCE) */
  247 
  248 #if defined(_NETBSD_SOURCE)
  249 int     chflags(const char *, unsigned long);
  250 int     fchflags(int, unsigned long);
  251 int     lchflags(const char *, unsigned long);
  252 int     lchmod(const char *, mode_t);
  253 #endif /* defined(_NETBSD_SOURCE) */
  254 __END_DECLS
  255 
  256 #endif /* !_KERNEL && !_STANDALONE */
  257 #endif /* !_SYS_STAT_H_ */

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