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

     /*-
      * Copyright (c) 1982, 1986, 1989, 1993
      *      The Regents of the University of California.  All rights reserved.
      * (c) UNIX System Laboratories, Inc.
      * All or some portions of this file are derived from material licensed
      * to the University of California by American Telephone and Telegraph
      * Co. or Unix System Laboratories, Inc. and are reproduced herein with
      * the permission of UNIX System Laboratories, Inc.
      *
     * Redistribution and use in source and binary forms, with or without
     * modification, are permitted provided that the following conditions
     * are met:
     * 1. Redistributions of source code must retain the above copyright
     *    notice, this list of conditions and the following disclaimer.
     * 2. Redistributions in binary form must reproduce the above copyright
     *    notice, this list of conditions and the following disclaimer in the
     *    documentation and/or other materials provided with the distribution.
     * 3. Neither the name of the University nor the names of its contributors
     *    may be used to endorse or promote products derived from this software
     *    without specific prior written permission.
     *
     * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
     * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
     * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     * SUCH DAMAGE.
     *
     *      @(#)stat.h      8.12 (Berkeley) 6/16/95
     * $FreeBSD: src/sys/sys/stat.h,v 1.20 1999/12/29 04:24:47 peter Exp $
     * $DragonFly: src/sys/sys/stat.h,v 1.14 2008/11/11 00:55:49 pavalos Exp $
     */
    
    #ifndef _SYS_STAT_H_
    #define _SYS_STAT_H_
    
    #if !defined(_POSIX_SOURCE)
    /*
     * XXX we need this for struct timespec.  We get miscellaneous namespace
     * pollution with it.
     */
    #ifndef _SYS_TIME_H_
    #include <sys/time.h>
    #endif
    #else   /* !_POSIX_SOURCE */
    #include <sys/_timespec.h>
    #endif  /* _POSIX_SOURCE */
    
    #ifdef _KERNEL
    #define __dev_t udev_t
    #else
    #define __dev_t dev_t
    #endif
    
    /*
     * stat structure notes:
     *
     * NOTE: st_fsmid removed in DragonFly 2.5.x.
     */
    struct stat {
            ino_t     st_ino;               /* inode's number */
            nlink_t   st_nlink;             /* number of hard links */
            __dev_t   st_dev;               /* inode's device */
            mode_t    st_mode;              /* inode protection mode */
            uint16_t  st_padding1;
            uid_t     st_uid;               /* user ID of the file's owner */
            gid_t     st_gid;               /* group ID of the file's group */
            __dev_t   st_rdev;              /* device type */
            struct  timespec st_atim;       /* time of last access */
            struct  timespec st_mtim;       /* time of last data modification */
            struct  timespec st_ctim;       /* time of last file status change */
            off_t     st_size;              /* file size, in bytes */
            int64_t   st_blocks;            /* blocks allocated for file */
            u_int32_t st_blksize;           /* optimal blocksize for I/O */
            u_int32_t st_flags;             /* user defined flags for file */
            u_int32_t st_gen;               /* file generation number */
            int32_t   st_lspare;
            int64_t   st_qspare1;           /* was recursive change detect */
            int64_t   st_qspare2;
    };
    
    /*#define _ST_FSMID_PRESENT_*/
    #define _ST_FLAGS_PRESENT_
    
    #undef __dev_t
    
    #define st_atime st_atim.tv_sec
    #define st_mtime st_mtim.tv_sec
    #define st_ctime st_ctim.tv_sec
    
    /* BSD compatibility */
    #ifndef _POSIX_SOURCE
    #define st_atimespec st_atim
    #define st_mtimespec st_mtim
   #define st_ctimespec st_ctim
   #endif
   
   #define S_ISUID 0004000                 /* set user id on execution */
   #define S_ISGID 0002000                 /* set group id on execution */
   #ifndef _POSIX_SOURCE
   #define S_ISTXT 0001000                 /* sticky bit */
   #endif
   
   #define S_IRWXU 0000700                 /* RWX mask for owner */
   #define S_IRUSR 0000400                 /* R for owner */
   #define S_IWUSR 0000200                 /* W for owner */
   #define S_IXUSR 0000100                 /* X for owner */
   
   #ifndef _POSIX_SOURCE
   #define S_IREAD         S_IRUSR
   #define S_IWRITE        S_IWUSR
   #define S_IEXEC         S_IXUSR
   #endif
   
   #define S_IRWXG 0000070                 /* RWX mask for group */
   #define S_IRGRP 0000040                 /* R for group */
   #define S_IWGRP 0000020                 /* W for group */
   #define S_IXGRP 0000010                 /* X for group */
   
   #define S_IRWXO 0000007                 /* RWX mask for other */
   #define S_IROTH 0000004                 /* R for other */
   #define S_IWOTH 0000002                 /* W for other */
   #define S_IXOTH 0000001                 /* X for other */
   
   #ifndef _POSIX_SOURCE
   #define S_IFMT   0170000                /* type of file mask */
   #define S_IFIFO  0010000                /* named pipe (fifo) */
   #define S_IFCHR  0020000                /* character special */
   #define S_IFDIR  0040000                /* directory */
   #define S_IFBLK  0060000                /* block special */
   #define S_IFREG  0100000                /* regular */
   #define S_IFDB   0110000                /* record access file */
   #define S_IFLNK  0120000                /* symbolic link */
   #define S_IFSOCK 0140000                /* socket */
   #define S_IFWHT  0160000                /* whiteout */
   #define S_ISVTX  0001000                /* save swapped text even after use */
   #endif
   
   #define S_ISDIR(m)      (((m) & 0170000) == 0040000)    /* directory */
   #define S_ISCHR(m)      (((m) & 0170000) == 0020000)    /* char special */
   #define S_ISBLK(m)      (((m) & 0170000) == 0060000)    /* block special */
   #define S_ISREG(m)      (((m) & 0170000) == 0100000)    /* regular file */
   #define S_ISDB(m)       (((m) & 0170000) == 0110000)    /* record access file */
   #define S_ISFIFO(m)     (((m) & 0170000) == 0010000)    /* fifo or socket */
   #ifndef _POSIX_SOURCE
   #define S_ISLNK(m)      (((m) & 0170000) == 0120000)    /* symbolic link */
   #define S_ISSOCK(m)     (((m) & 0170000) == 0140000)    /* socket */
   #define S_ISWHT(m)      (((m) & 0170000) == 0160000)    /* whiteout */
   #endif
   
   /*
    * The value of `buf' is a pointer to a `stat' data structure. Since we don't
    * implement message queues as distinct file types, the following macro
    * evaluates to zero.
    * XXX: What about semaphores and shared memory objects ?
    */
   #define S_TYPEISMQ(buf)         (0)     /* message queue */
   
   #ifndef _POSIX_SOURCE
   #define ACCESSPERMS     (S_IRWXU|S_IRWXG|S_IRWXO)       /* 0777 */
                                                           /* 7777 */
   #define ALLPERMS        (S_ISUID|S_ISGID|S_ISTXT|S_IRWXU|S_IRWXG|S_IRWXO)
                                                           /* 0666 */
   #define DEFFILEMODE     (S_IRUSR|S_IWUSR|S_IRGRP|S_IWGRP|S_IROTH|S_IWOTH)
   
   #define S_BLKSIZE       512             /* block size used in the stat struct */
   
   /*
    * Definitions of flags stored in file flags word.
    *
    * Super-user and owner changeable flags.
    */
   #define UF_SETTABLE     0x0000ffff      /* mask of owner changeable flags */
   #define UF_NODUMP       0x00000001      /* do not dump file */
   #define UF_IMMUTABLE    0x00000002      /* file may not be changed */
   #define UF_APPEND       0x00000004      /* writes to file may only append */
   #define UF_OPAQUE       0x00000008      /* directory is opaque wrt. union */
   #define UF_NOUNLINK     0x00000010      /* file may not be removed or renamed */
   #define UF_FBSDRSVD20   0x00000020      /* (unused) */
   #define UF_NOHISTORY    0x00000040      /* do not retain history/snapshots */
   #define UF_CACHE        0x00000080      /* enable data swapcache */
   /*
    * Super-user changeable flags.
    */
   #define SF_SETTABLE     0xffff0000      /* mask of superuser changeable flags */
   #define SF_ARCHIVED     0x00010000      /* file is archived */
   #define SF_IMMUTABLE    0x00020000      /* file may not be changed */
   #define SF_APPEND       0x00040000      /* writes to file may only append */
   #define SF_NOUNLINK     0x00100000      /* file may not be removed or renamed */
   #define SF_FBSDRSVD20   0x00200000      /* (used by FreeBSD for snapshots) */
   #define SF_NOHISTORY    0x00400000      /* do not retain history/snapshots */
   #define SF_NOCACHE      0x00800000      /* disable data swapcache */
   
   #ifdef _KERNEL
   /*
    * Shorthand abbreviations of above.
    */
   #define OPAQUE          (UF_OPAQUE)
   #define APPEND          (UF_APPEND | SF_APPEND)
   #define IMMUTABLE       (UF_IMMUTABLE | SF_IMMUTABLE)
   #define NOUNLINK        (UF_NOUNLINK | SF_NOUNLINK)
   #endif
   
   #endif /* !_POSIX_SOURCE */
   
   #if !defined(_KERNEL) || defined(_KERNEL_VIRTUAL)
   #include <sys/cdefs.h>
   
   __BEGIN_DECLS
   int     chmod (const char *, mode_t);
   #if __BSD_VISIBLE || __POSIX_VISIBLE >= 200809
   int     fchmodat (int, const char *, mode_t, int);
   #endif
   int     fstat (int, struct stat *);
   int     mkdir (const char *, mode_t);
   int     mkfifo (const char *, mode_t);
   #if !defined(_MKNOD_DECLARED) && __XSI_VISIBLE
   int     mknod(const char *, mode_t, dev_t);
   #define _MKNOD_DECLARED
   #endif
   int     stat (const char *, struct stat *);
   mode_t  umask (mode_t);
   #if __BSD_VISIBLE || __POSIX_VISIBLE >= 200809
   int     fstatat(int, const char *, struct stat *, int);
   int     mkdirat(int, const char *, mode_t);
   int     mkfifoat(int, const char *, mode_t);
   #endif
   #if __BSD_VISIBLE || __XSI_VISIBLE >= 700
   int     mknodat(int, const char *, mode_t, dev_t);
   #endif
   
   #ifndef _POSIX_SOURCE
   int     chflags (const char *, u_long);
   int     fchflags (int, u_long);
   int     lchflags (const char *, u_long);
   int     fchmod (int, mode_t);
   int     lchmod (const char *, mode_t);
   int     lstat (const char *, struct stat *);
   #endif
   __END_DECLS
   
   #endif
   
   #endif /* !_SYS_STAT_H_ */

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