sysdeps/mach/hurd/bits/stat.h

   1 /* Copyright (C) 1992-2015 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 Lesser General Public
   6    License as published by the Free Software Foundation; either
   7    version 2.1 of the 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    Lesser General Public License for more details.
  13
  14    You should have received a copy of the GNU Lesser General Public
  15    License along with the GNU C Library; if not, see
  16    <http://www.gnu.org/licenses/>.  */
  17
  18 #if !defined _SYS_STAT_H && !defined _FCNTL_H
  19 # error "Never include <bits/stat.h> directly; use <sys/stat.h> instead."
  20 #endif
  21
  22 #ifndef _BITS_STAT_H
  23 #define _BITS_STAT_H    1
  24
  25 #include <bits/types.h>
  26
  27 /* NOTE: The size of this structure (32 ints) is known in
  28    <hurd/hurd_types.defs>, since it is used in the `io_stat' RPC.  MiG
  29    does not cope at all well with the passed C structure not being of
  30    the expected size.  There are some filler words at the end to allow
  31    for future expansion.  To increase the size of the structure used
  32    in the RPC and retain binary compatibility, we would need to assign
  33    a new message number.  */
  34
  35 struct stat
  36   {
  37     int st_fstype;              /* File system type.  */
  38     __fsid_t st_fsid;           /* File system ID.  */
  39 #define st_dev  st_fsid
  40
  41 #ifndef __USE_FILE_OFFSET64
  42     __ino_t st_ino;             /* File number.  */
  43 #else
  44     __ino64_t st_ino;           /* File number.  */
  45 #endif
  46     unsigned int st_gen;        /* To detect reuse of file numbers.  */
  47     __dev_t st_rdev;            /* Device if special file.  */
  48     __mode_t st_mode;           /* File mode.  */
  49     __nlink_t st_nlink;         /* Number of links.  */
  50
  51     __uid_t st_uid;             /* Owner.  */
  52     __gid_t st_gid;             /* Owning group.  */
  53
  54 #ifndef __USE_FILE_OFFSET64
  55     __off_t st_size;            /* Size in bytes.  */
  56 #else
  57     __off64_t st_size;          /* Size in bytes.  */
  58 #endif
  59
  60 #ifdef __USE_XOPEN2K8
  61     /* Nanosecond resolution timestamps are stored in a format
  62        equivalent to 'struct timespec'.  This is the type used
  63        whenever possible but the Unix namespace rules do not allow the
  64        identifier 'timespec' to appear in the <sys/stat.h> header.
  65        Therefore we have to handle the use of this header in strictly
  66        standard-compliant sources special.  */
  67     struct timespec st_atim;            /* Time of last access.  */
  68     struct timespec st_mtim;            /* Time of last modification.  */
  69     struct timespec st_ctim;            /* Time of last status change.  */
  70 # define st_atime st_atim.tv_sec        /* Backward compatibility.  */
  71 # define st_mtime st_mtim.tv_sec
  72 # define st_ctime st_ctim.tv_sec
  73 #else
  74     __time_t st_atime;                  /* Time of last access.  */
  75     unsigned long int st_atimensec;     /* Nscecs of last access.  */
  76     __time_t st_mtime;                  /* Time of last modification.  */
  77     unsigned long int st_mtimensec;     /* Nsecs of last modification.  */
  78     __time_t st_ctime;                  /* Time of last status change.  */
  79     unsigned long int st_ctimensec;     /* Nsecs of last status change.  */
  80 #endif
  81
  82     __blksize_t st_blksize;     /* Optimal size for I/O.  */
  83
  84 #ifndef __USE_FILE_OFFSET64
  85     __blkcnt_t st_blocks;       /* Number of 512-byte blocks allocated.
  86                                    Not related to `st_blksize'.  */
  87 #else
  88     __blkcnt64_t st_blocks;     /* Number of 512-byte blocks allocated.
  89                                    Not related to `st_blksize'.  */
  90 #endif
  91
  92     __uid_t st_author;          /* File author.  */
  93
  94     unsigned int st_flags;      /* User-defined flags.
  95                                    High 16 bits can be set only by root.  */
  96
  97 #ifndef __USE_FILE_OFFSET64
  98 # define _SPARE_SIZE    ((sizeof (__fsid_t) == sizeof (int)) ? 12 : 11)
  99 #else
 100 # define _SPARE_SIZE    ((sizeof (__fsid_t) == sizeof (int)) ? 9 : 8)
 101 #endif
 102     int st_spare[_SPARE_SIZE];  /* Room for future expansion.  */
 103 #undef _SPARE_SIZE
 104   };
 105
 106 #ifdef __USE_LARGEFILE64
 107 struct stat64
 108   {
 109     int st_fstype;              /* File system type.  */
 110     __fsid_t st_fsid;           /* File system ID.  */
 111 # define st_dev st_fsid
 112
 113     __ino64_t st_ino;           /* File number.  */
 114     unsigned int st_gen;        /* To detect reuse of file numbers.  */
 115     __dev_t st_rdev;            /* Device if special file.  */
 116     __mode_t st_mode;           /* File mode.  */
 117     __nlink_t st_nlink;         /* Number of links.  */
 118
 119     __uid_t st_uid;             /* Owner.  */
 120     __gid_t st_gid;             /* Owning group.  */
 121
 122     __off64_t st_size;          /* Size in bytes.  */
 123
 124 #ifdef __USE_XOPEN2K8
 125     /* Nanosecond resolution timestamps are stored in a format
 126        equivalent to 'struct timespec'.  This is the type used
 127        whenever possible but the Unix namespace rules do not allow the
 128        identifier 'timespec' to appear in the <sys/stat.h> header.
 129        Therefore we have to handle the use of this header in strictly
 130        standard-compliant sources special.  */
 131     struct timespec st_atim;            /* Time of last access.  */
 132     struct timespec st_mtim;            /* Time of last modification.  */
 133     struct timespec st_ctim;            /* Time of last status change.  */
 134 #else
 135     __time_t st_atime;                  /* Time of last access.  */
 136     unsigned long int st_atimensec;     /* Nscecs of last access.  */
 137     __time_t st_mtime;                  /* Time of last modification.  */
 138     unsigned long int st_mtimensec;     /* Nsecs of last modification.  */
 139     __time_t st_ctime;                  /* Time of last status change.  */
 140     unsigned long int st_ctimensec;     /* Nsecs of last status change.  */
 141 #endif
 142
 143     __blksize_t st_blksize;     /* Optimal size for I/O.  */
 144
 145     __blkcnt64_t st_blocks;     /* Number of 512-byte blocks allocated.
 146                                    Not related to `st_blksize'.  */
 147
 148     __uid_t st_author;          /* File author.  */
 149
 150     unsigned int st_flags;      /* User-defined flags.
 151                                    High 16 bits can be set only by root.  */
 152
 153 #define _SPARE_SIZE     ((sizeof (__fsid_t) == sizeof (int)) ? 9 : 8)
 154     int st_spare[_SPARE_SIZE];  /* Room for future expansion.  */
 155 #undef _SPARE_SIZE
 156   };
 157 #endif
 158
 159 /* Tell code we have these members.  */
 160 #define _STATBUF_ST_BLKSIZE
 161 /* Nanosecond resolution time values are supported.  */
 162 #define _STATBUF_ST_NSEC
 163
 164 /* Encoding of the file mode.  */
 165
 166 #define __S_IFMT        0170000 /* These bits determine file type.  */
 167
 168 /* File types.  */
 169 #define __S_IFDIR       0040000 /* Directory.  */
 170 #define __S_IFCHR       0020000 /* Character device.  */
 171 #define __S_IFBLK       0060000 /* Block device.  */
 172 #define __S_IFREG       0100000 /* Regular file.  */
 173 #define __S_IFLNK       0120000 /* Symbolic link.  */
 174 #define __S_IFSOCK      0140000 /* Socket.  */
 175 #define __S_IFIFO       0010000 /* FIFO.  */
 176
 177 /* POSIX.1b objects.  */
 178 #define __S_TYPEISMQ(buf) (0)
 179 #define __S_TYPEISSEM(buf) (0)
 180 #define __S_TYPEISSHM(buf) (0)
 181
 182 /* Protection bits.  */
 183
 184 #define __S_ISUID       04000   /* Set user ID on execution.  */
 185 #define __S_ISGID       02000   /* Set group ID on execution.  */
 186 #define __S_ISVTX       01000   /* Save swapped text after use (sticky).  */
 187 #define __S_IREAD       00400   /* Read by owner.  */
 188 #define __S_IWRITE      00200   /* Write by owner.  */
 189 #define __S_IEXEC       00100   /* Execute by owner.  */
 190
 191
 192 #ifdef  __USE_GNU
 193 /* If set, there is no benefit in caching the contents of this file.  */
 194 #define S_INOCACHE      000000200000
 195
 196 /* If the S_IUSEUNK bit is set, then the S_IUNKNOWN bits (see below)
 197    control access for unknown users.  If S_IUSEUNK is clear, then unknown
 198    users are treated as "others" for purposes of access control.  */
 199 #define S_IUSEUNK       000000400000
 200 /* Mask of protection bits for unknown users (no effective IDs at all).  */
 201 #define S_IUNKNOWN      000007000000
 202 /* Shift S_IREAD, S_IWRITE, S_IEXEC left this many bits to produce the
 203    protection bits for unknown users.  */
 204 #define S_IUNKSHIFT     12
 205
 206 /* Read only bits: */
 207
 208 /* There is a passive translator set for this file */
 209 #define S_IPTRANS       000010000000
 210 /* There is an active translator running on this file */
 211 #define S_IATRANS       000020000000
 212 /* This is the root of a filesystem (or single node translator) */
 213 #define S_IROOT         000040000000
 214 /* All the bits relevant to translators */
 215 #define S_ITRANS        000070000000
 216
 217 /* Definitely no mmaps to this.  */
 218 #define S_IMMAP0        000100000000
 219
 220 /* ALL the unused bits.  */
 221 #define S_ISPARE        (~(S_IFMT|S_ITRANS|S_INOCACHE|S_IMMAP0|    \
 222                            S_IUSEUNK|S_IUNKNOWN|07777))
 223 #endif
 224
 225 /* Default file creation mask (umask).  */
 226 #ifdef  __USE_MISC
 227 # define CMASK          0022
 228 #endif
 229
 230 #endif  /* bits/stat.h */