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. All advertising materials mentioning features or use of this software
     *    must display the following acknowledgement:
     *      This product includes software developed by the University of
     *      California, Berkeley and its contributors.
     * 4. 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: releng/5.0/sys/sys/stat.h 104911 2002-10-11 15:52:14Z mike $
     */
    
    #ifndef _SYS_STAT_H_
    #define _SYS_STAT_H_
    
    #include <sys/cdefs.h>
    #include <sys/_types.h>
    
    #ifndef _FFLAGS_T_DECLARED
    typedef __fflags_t      fflags_t;       /* file flags */
    #define _FFLAGS_T_DECLARED
    #endif
    
    #if !defined(_KERNEL) && !defined(_POSIX_SOURCE)
    /*
     * XXX we need this for struct timespec.  We get miscellaneous namespace
     * pollution with it.
     */
    #include <sys/time.h>
    #endif
    
    #ifdef _POSIX_SOURCE
    #include <sys/_timespec.h>
    #endif
    
    #ifdef _KERNEL
    #define __dev_t udev_t
    #else
    #define __dev_t dev_t
    #endif
    
    #ifndef _POSIX_SOURCE
    struct ostat {
            u_int16_t st_dev;               /* inode's device */
            ino_t     st_ino;               /* inode's number */
            mode_t    st_mode;              /* inode protection mode */
            nlink_t   st_nlink;             /* number of hard links */
            u_int16_t st_uid;               /* user ID of the file's owner */
            u_int16_t st_gid;               /* group ID of the file's group */
            u_int16_t st_rdev;              /* device type */
            int32_t   st_size;              /* file size, in bytes */
            struct  timespec st_atimespec;  /* time of last access */
            struct  timespec st_mtimespec;  /* time of last data modification */
            struct  timespec st_ctimespec;  /* time of last file status change */
            int32_t   st_blksize;           /* optimal blocksize for I/O */
            int32_t   st_blocks;            /* blocks allocated for file */
            fflags_t  st_flags;             /* user defined flags for file */
            u_int32_t st_gen;               /* file generation number */
    };
    #endif /* !_POSIX_SOURCE */
    
    struct stat {
            __dev_t   st_dev;               /* inode's device */
            ino_t     st_ino;               /* inode's number */
            mode_t    st_mode;              /* inode protection mode */
            nlink_t   st_nlink;             /* number of hard links */
            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 */
    #ifndef _POSIX_SOURCE
           struct  timespec st_atimespec;  /* time of last access */
           struct  timespec st_mtimespec;  /* time of last data modification */
           struct  timespec st_ctimespec;  /* time of last file status change */
   #else
           time_t    st_atime;             /* time of last access */
           long      st_atimensec;         /* nsec of last access */
           time_t    st_mtime;             /* time of last data modification */
           long      st_mtimensec;         /* nsec of last data modification */
           time_t    st_ctime;             /* time of last file status change */
           long      st_ctimensec;         /* nsec of last file status change */
   #endif
           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 */
           fflags_t  st_flags;             /* user defined flags for file */
           u_int32_t st_gen;               /* file generation number */
           int32_t   st_lspare;
   #ifndef _POSIX_SOURCE
           struct timespec st_birthtimespec; /* time of file creation */
           /*
            * Explicitly pad st_birthtimespec to 16 bytes so that the size of
            * struct stat is backwards compatible.  We use bitfields instead
            * of an array of chars so that this doesn't require a C99 compiler
            * to compile if the size of the padding is 0.  We use 2 bitfields
            * to cover up to 64 bits on 32-bit machines.  We assume that
            * CHAR_BIT is 8...
            */
           int     :(8 / 2) * (16 - (int)sizeof(struct timespec));
           int     :(8 / 2) * (16 - (int)sizeof(struct timespec));
   #else
           time_t    st_birthtime;         /* time of file creation */
           long      st_birthtimensec;     /* nsec of file creation */
           int     :(8 / 2) * (16 - (int)sizeof(struct __timespec));
           int     :(8 / 2) * (16 - (int)sizeof(struct __timespec));
   #endif
   };
   
   #ifndef _POSIX_SOURCE
   struct nstat {
           __dev_t   st_dev;               /* inode's device */
           ino_t     st_ino;               /* inode's number */
           u_int32_t st_mode;              /* inode protection mode */
           u_int32_t st_nlink;             /* number of hard links */
           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_atimespec;  /* time of last access */
           struct  timespec st_mtimespec;  /* time of last data modification */
           struct  timespec st_ctimespec;  /* 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 */
           fflags_t  st_flags;             /* user defined flags for file */
           u_int32_t st_gen;               /* file generation number */
           struct timespec st_birthtimespec; /* time of file creation */
           /*
            * See above about the following padding.
            */
           int     :(8 / 2) * (16 - (int)sizeof(struct timespec));
           int     :(8 / 2) * (16 - (int)sizeof(struct timespec));
   };
   #endif
   
   #undef __dev_t
   
   #ifndef _POSIX_SOURCE
   #define st_atime st_atimespec.tv_sec
   #define st_mtime st_mtimespec.tv_sec
   #define st_ctime st_ctimespec.tv_sec
   #define st_birthtime st_birthtimespec.tv_sec
   #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_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_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
   
   #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 */
   /*
    * 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_SNAPSHOT     0x00200000      /* snapshot inode */
   
   #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 */
   
   #ifndef _KERNEL
   __BEGIN_DECLS
   int     chmod(const char *, mode_t);
   int     fstat(int, struct stat *);
   int     mkdir(const char *, mode_t);
   int     mkfifo(const char *, mode_t);
   int     stat(const char *, struct stat *);
   mode_t  umask(mode_t);
   
   #ifndef _POSIX_SOURCE
   int     chflags(const char *, unsigned long);
   int     lchflags(const char *, int);
   int     fchflags(int, unsigned long);
   int     fchmod(int, mode_t);
   int     lchmod(const char *, mode_t);
   int     lstat(const char *, struct stat *);
   #endif
   __END_DECLS
   
   #endif /* !_KERNEL */
   
   #endif /* !_SYS_STAT_H_ */

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