sysdeps/mach/hurd/statbuf.h

   1 /* Copyright (C) 1992, 1993, 1994 Free Software Foundation, Inc.
   2 This file is part of the GNU C Library.
   3
   4 The GNU C Library is free software; you can redistribute it and/or
   5 modify it under the terms of the GNU Library General Public License as
   6 published by the Free Software Foundation; either version 2 of the
   7 License, or (at your option) any later version.
   8
   9 The GNU C Library is distributed in the hope that it will be useful,
  10 but WITHOUT ANY WARRANTY; without even the implied warranty of
  11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12 Library General Public License for more details.
  13
  14 You should have received a copy of the GNU Library General Public
  15 License along with the GNU C Library; see the file COPYING.LIB.  If
  16 not, write to the Free Software Foundation, Inc., 675 Mass Ave,
  17 Cambridge, MA 02139, USA.  */
  18
  19 #ifndef _STATBUF_H
  20
  21 #define _STATBUF_H      1
  22
  23 #include <gnu/types.h>
  24
  25 /* NOTE: The size of this structure (32 ints) is known in
  26    <hurd/hurd_types.defs>, since it is used in the `io_stat' RPC.  MiG
  27    does not cope at all well with the passed C structure not being of
  28    the expected size.  There are some filler words at the end to allow
  29    for future expansion.  To increase the size of the structure used
  30    in the RPC and retain binary compatibility, we would need to assign
  31    a new message number.  */
  32
  33 struct stat
  34   {
  35     int st_fstype;              /* File system type.  */
  36     __fsid_t st_fsid;           /* File system ID.  */
  37 #define st_dev  st_fsid
  38
  39     __ino_t st_ino;             /* File number.  */
  40     unsigned int st_gen;        /* To detect reuse of file numbers.  */
  41     __dev_t st_rdev;            /* Device if special file.  */
  42     __mode_t st_mode;           /* File mode.  */
  43     __nlink_t st_nlink;         /* Number of links.  */
  44
  45     __uid_t st_uid;             /* Owner.  */
  46     __gid_t st_gid;             /* Owning group.  */
  47
  48     __off_t st_size;            /* Size in bytes.  */
  49
  50     __time_t st_atime;          /* Access time, seconds */
  51     unsigned long int st_atime_usec; /* and microseconds.  */
  52     __time_t st_mtime;          /* Modification time, seconds */
  53     unsigned long int st_mtime_usec; /* and microseconds.  */
  54     __time_t st_ctime;          /* Status change time, seconds */
  55     unsigned long int st_ctime_usec; /* and microseconds.  */
  56
  57     unsigned int st_blksize;    /* Optimal size for I/O.  */
  58
  59 #define _STATBUF_ST_BLKSIZE     /* Tell code we have this member.  */
  60
  61     unsigned int st_blocks;     /* Number of 512-byte blocks allocated.
  62                                    Not related to `st_blksize'.  */
  63
  64     __uid_t st_author;          /* File author.  */
  65
  66     unsigned int st_flags;      /* User-defined flags.
  67                                    High 16 bits can be set only by root.  */
  68
  69     int st_spare[11];           /* Room for future expansion.  */
  70   };
  71
  72 /* Encoding of the file mode.  */
  73
  74 #define __S_IFMT        0170000 /* These bits determine file type.  */
  75
  76 /* File types.  */
  77 #define __S_IFDIR       0040000 /* Directory.  */
  78 #define __S_IFCHR       0020000 /* Character device.  */
  79 #define __S_IFBLK       0060000 /* Block device.  */
  80 #define __S_IFREG       0100000 /* Regular file.  */
  81 #define __S_IFLNK       0120000 /* Symbolic link.  */
  82 #define __S_IFSOCK      0140000 /* Socket.  */
  83 #define __S_IFIFO       0010000 /* FIFO.  */
  84
  85 /* Protection bits.  */
  86
  87 #define __S_ISUID       04000   /* Set user ID on execution.  */
  88 #define __S_ISGID       02000   /* Set group ID on execution.  */
  89 #define __S_ISVTX       01000   /* Save swapped text after use (sticky).  */
  90 #define __S_IREAD       00400   /* Read by owner.  */
  91 #define __S_IWRITE      00200   /* Write by owner.  */
  92 #define __S_IEXEC       00100   /* Execute by owner.  */
  93
  94
  95 #ifdef  __USE_GNU
  96 /* If set, there is no benefit in caching the contents of this file.  */
  97 #define S_INOCACHE      000000200000
  98
  99 /* If the S_IUSEUNK bit is set, then the S_IUNKNOWN bits (see below)
 100    control access for unknown users.  If S_IUSEUNK is clear, then unknown
 101    users are treated as "others" for purposes of access control.  */
 102 #define S_IUSEUNK       000000400000
 103 /* Mask of protection bits for unknown users (no effective IDs at all).  */
 104 #define S_IUNKNOWN      000007000000
 105 /* Shift S_IREAD, S_IWRITE, S_IEXEC left this many bits to produce the
 106    protection bits for unknown users.  */
 107 #define S_IUNKSHIFT     12
 108
 109 /* All the unused bits.  */
 110 #define S_ISPARE        (~(S_IFMT|S_INOCACHE|S_IUNKNOWN|07777))
 111 #endif
 112
 113 /* Default file creation mask (umask).  */
 114 #ifdef  __USE_BSD
 115 #define CMASK           0022
 116 #endif
 117
 118
 119 #endif /* statbuf.h */