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 /*      $OpenBSD: stat.h,v 1.29 2022/01/11 23:59:55 jsg Exp $   */
    2 /*      $NetBSD: stat.h,v 1.20 1996/05/16 22:17:49 cgd Exp $    */
    3 
    4 /*-
    5  * Copyright (c) 1982, 1986, 1989, 1993
    6  *      The Regents of the University of California.  All rights reserved.
    7  * (c) UNIX System Laboratories, Inc.
    8  * All or some portions of this file are derived from material licensed
    9  * to the University of California by American Telephone and Telegraph
   10  * Co. or Unix System Laboratories, Inc. and are reproduced herein with
   11  * the permission of UNIX System Laboratories, Inc.
   12  *
   13  * Redistribution and use in source and binary forms, with or without
   14  * modification, are permitted provided that the following conditions
   15  * are met:
   16  * 1. Redistributions of source code must retain the above copyright
   17  *    notice, this list of conditions and the following disclaimer.
   18  * 2. Redistributions in binary form must reproduce the above copyright
   19  *    notice, this list of conditions and the following disclaimer in the
   20  *    documentation and/or other materials provided with the distribution.
   21  * 3. Neither the name of the University nor the names of its contributors
   22  *    may be used to endorse or promote products derived from this software
   23  *    without specific prior written permission.
   24  *
   25  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
   26  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
   27  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
   28  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
   29  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
   30  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
   31  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
   32  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
   33  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
   34  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
   35  * SUCH DAMAGE.
   36  *
   37  *      @(#)stat.h      8.9 (Berkeley) 8/17/94
   38  */
   39 
   40 #ifndef _SYS_STAT_H_
   41 #define _SYS_STAT_H_
   42 
   43 #include <sys/time.h>
   44 
   45 struct stat {
   46         mode_t    st_mode;              /* inode protection mode */
   47         dev_t     st_dev;               /* inode's device */
   48         ino_t     st_ino;               /* inode's number */
   49         nlink_t   st_nlink;             /* number of hard links */
   50         uid_t     st_uid;               /* user ID of the file's owner */
   51         gid_t     st_gid;               /* group ID of the file's group */
   52         dev_t     st_rdev;              /* device type */
   53 #if __POSIX_VISIBLE >= 200809 || __BSD_VISIBLE
   54         struct  timespec st_atim;       /* time of last access */
   55         struct  timespec st_mtim;       /* time of last data modification */
   56         struct  timespec st_ctim;       /* time of last file status change */
   57 #else
   58         time_t    st_atime;             /* time of last access */
   59         long      st_atimensec;         /* nsec of last access */
   60         time_t    st_mtime;             /* time of last data modification */
   61         long      st_mtimensec;         /* nsec of last data modification */
   62         time_t    st_ctime;             /* time of last file status change */
   63         long      st_ctimensec;         /* nsec of last file status change */
   64 #endif /* __POSIX_VISIBLE >= 200809 || __BSD_VISIBLE */
   65         off_t     st_size;              /* file size, in bytes */
   66         blkcnt_t  st_blocks;            /* blocks allocated for file */
   67         blksize_t st_blksize;           /* optimal blocksize for I/O */
   68         u_int32_t st_flags;             /* user defined flags for file */
   69         u_int32_t st_gen;               /* file generation number */
   70 #if __POSIX_VISIBLE >= 200809 || __BSD_VISIBLE
   71         struct  timespec __st_birthtim; /* time of file creation */
   72 #else
   73         time_t    __st_birthtime;       /* time of file creation */
   74         long      __st_birthtimensec;   /* nsec of file creation */
   75 #endif /* __POSIX_VISIBLE >= 200809 || __BSD_VISIBLE */
   76 };
   77 #if __POSIX_VISIBLE >= 200809 || __BSD_VISIBLE
   78 #define st_atime                st_atim.tv_sec
   79 #define st_mtime                st_mtim.tv_sec
   80 #define st_ctime                st_ctim.tv_sec
   81 #define __st_birthtime          __st_birthtim.tv_sec
   82 #endif
   83 #if __BSD_VISIBLE
   84 #define st_atimespec            st_atim
   85 #define st_atimensec            st_atim.tv_nsec
   86 #define st_mtimespec            st_mtim
   87 #define st_mtimensec            st_mtim.tv_nsec
   88 #define st_ctimespec            st_ctim
   89 #define st_ctimensec            st_ctim.tv_nsec
   90 #define __st_birthtimespec      __st_birthtim
   91 #define __st_birthtimensec      __st_birthtim.tv_nsec
   92 #endif
   93 
   94 #define S_ISUID 0004000                 /* set user id on execution */
   95 #define S_ISGID 0002000                 /* set group id on execution */
   96 #if __BSD_VISIBLE
   97 #define S_ISTXT 0001000                 /* sticky bit */
   98 #endif
   99 
  100 #define S_IRWXU 0000700                 /* RWX mask for owner */
  101 #define S_IRUSR 0000400                 /* R for owner */
  102 #define S_IWUSR 0000200                 /* W for owner */
  103 #define S_IXUSR 0000100                 /* X for owner */
  104 
  105 #if __BSD_VISIBLE
  106 #define S_IREAD         S_IRUSR
  107 #define S_IWRITE        S_IWUSR
  108 #define S_IEXEC         S_IXUSR
  109 #endif
  110 
  111 #define S_IRWXG 0000070                 /* RWX mask for group */
  112 #define S_IRGRP 0000040                 /* R for group */
  113 #define S_IWGRP 0000020                 /* W for group */
  114 #define S_IXGRP 0000010                 /* X for group */
  115 
  116 #define S_IRWXO 0000007                 /* RWX mask for other */
  117 #define S_IROTH 0000004                 /* R for other */
  118 #define S_IWOTH 0000002                 /* W for other */
  119 #define S_IXOTH 0000001                 /* X for other */
  120 
  121 #if __XPG_VISIBLE || __BSD_VISIBLE
  122 #define S_IFMT   0170000                /* type of file mask */
  123 #define S_IFIFO  0010000                /* named pipe (fifo) */
  124 #define S_IFCHR  0020000                /* character special */
  125 #define S_IFDIR  0040000                /* directory */
  126 #define S_IFBLK  0060000                /* block special */
  127 #define S_IFREG  0100000                /* regular */
  128 #define S_IFLNK  0120000                /* symbolic link */
  129 #define S_IFSOCK 0140000                /* socket */
  130 #define S_ISVTX  0001000                /* save swapped text even after use */
  131 #endif
  132 
  133 #define S_ISDIR(m)      ((m & 0170000) == 0040000)      /* directory */
  134 #define S_ISCHR(m)      ((m & 0170000) == 0020000)      /* char special */
  135 #define S_ISBLK(m)      ((m & 0170000) == 0060000)      /* block special */
  136 #define S_ISREG(m)      ((m & 0170000) == 0100000)      /* regular file */
  137 #define S_ISFIFO(m)     ((m & 0170000) == 0010000)      /* fifo */
  138 #if __POSIX_VISIBLE >= 200112 || __BSD_VISIBLE
  139 #define S_ISLNK(m)      ((m & 0170000) == 0120000)      /* symbolic link */
  140 #define S_ISSOCK(m)     ((m & 0170000) == 0140000)      /* socket */
  141 #endif
  142 
  143 #if __POSIX_VISIBLE >= 200809
  144 /* mandated to be present, but permitted to always return zero */
  145 #define S_TYPEISMQ(m)   0
  146 #define S_TYPEISSEM(m)  0
  147 #define S_TYPEISSHM(m)  0
  148 #endif
  149 
  150 #if __BSD_VISIBLE
  151 #define ACCESSPERMS     (S_IRWXU|S_IRWXG|S_IRWXO)       /* 00777 */
  152                                                         /* 07777 */
  153 #define ALLPERMS        (S_ISUID|S_ISGID|S_ISTXT|S_IRWXU|S_IRWXG|S_IRWXO)
  154                                                         /* 00666 */
  155 #define DEFFILEMODE     (S_IRUSR|S_IWUSR|S_IRGRP|S_IWGRP|S_IROTH|S_IWOTH)
  156 
  157 #define S_BLKSIZE       512             /* block size used in the stat struct */
  158 
  159 /*
  160  * Definitions of flags stored in file flags word.
  161  *
  162  * Super-user and owner changeable flags.
  163  */
  164 #define UF_SETTABLE     0x0000ffff      /* mask of owner changeable flags */
  165 #define UF_NODUMP       0x00000001      /* do not dump file */
  166 #define UF_IMMUTABLE    0x00000002      /* file may not be changed */
  167 #define UF_APPEND       0x00000004      /* writes to file may only append */
  168 #define UF_OPAQUE       0x00000008      /* directory is opaque wrt. union */
  169 /*
  170  * Super-user changeable flags.
  171  */
  172 #define SF_SETTABLE     0xffff0000      /* mask of superuser changeable flags */
  173 #define SF_ARCHIVED     0x00010000      /* file is archived */
  174 #define SF_IMMUTABLE    0x00020000      /* file may not be changed */
  175 #define SF_APPEND       0x00040000      /* writes to file may only append */
  176 
  177 #ifdef _KERNEL
  178 /*
  179  * Shorthand abbreviations of above.
  180  */
  181 #define OPAQUE          (UF_OPAQUE)
  182 #define APPEND          (UF_APPEND | SF_APPEND)
  183 #define IMMUTABLE       (UF_IMMUTABLE | SF_IMMUTABLE)
  184 #endif /* _KERNEL */
  185 #endif /* __BSD_VISIBLE */
  186 
  187 #if __POSIX_VISIBLE >= 200809
  188 #define UTIME_NOW       -2L
  189 #define UTIME_OMIT      -1L
  190 #endif /* __POSIX_VISIBLE */
  191 
  192 #ifndef _KERNEL
  193 __BEGIN_DECLS
  194 int     chmod(const char *, mode_t);
  195 int     fstat(int, struct stat *);
  196 int     mknod(const char *, mode_t, dev_t);
  197 int     mkdir(const char *, mode_t);
  198 int     mkfifo(const char *, mode_t);
  199 int     stat(const char *, struct stat *);
  200 mode_t  umask(mode_t);
  201 #if __POSIX_VISIBLE >= 200112L || __XPG_VISIBLE >= 420 || __BSD_VISIBLE
  202 int     fchmod(int, mode_t);
  203 int     lstat(const char *, struct stat *);
  204 #endif
  205 #if __POSIX_VISIBLE >= 200809
  206 int     fchmodat(int, const char *, mode_t, int);
  207 int     fstatat(int, const char *, struct stat *, int);
  208 int     mkdirat(int, const char *, mode_t);
  209 int     mkfifoat(int, const char *, mode_t);
  210 int     mknodat(int, const char *, mode_t, dev_t);
  211 int     utimensat(int, const char *, const struct timespec [2], int);
  212 int     futimens(int, const struct timespec [2]);
  213 #endif
  214 #if __BSD_VISIBLE
  215 int     chflags(const char *, unsigned int);
  216 int     chflagsat(int, const char *, unsigned int, int);
  217 int     fchflags(int, unsigned int);
  218 int     isfdtype(int, int);
  219 #endif
  220 __END_DECLS
  221 #endif
  222 #endif /* !_SYS_STAT_H_ */

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