sysdeps/nacl/bits/stat.h

   1 /* 'struct stat' and related definitions.  NaCl version.
   2    Copyright (C) 2015 Free Software Foundation, Inc.
   3    This file is part of the GNU C Library.
   4
   5    The GNU C Library is free software; you can redistribute it and/or
   6    modify it under the terms of the GNU Lesser General Public
   7    License as published by the Free Software Foundation; either
   8    version 2.1 of the License, or (at your option) any later version.
   9
  10    The GNU C Library is distributed in the hope that it will be useful,
  11    but WITHOUT ANY WARRANTY; without even the implied warranty of
  12    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  13    Lesser General Public License for more details.
  14
  15    You should have received a copy of the GNU Lesser General Public
  16    License along with the GNU C Library; if not, see
  17    <http://www.gnu.org/licenses/>.  */
  18
  19 #if !defined _SYS_STAT_H && !defined _FCNTL_H
  20 # error "Never include <bits/stat.h> directly; use <sys/stat.h> instead."
  21 #endif
  22
  23 #ifndef _BITS_STAT_H
  24 #define _BITS_STAT_H    1
  25
  26 /* Versions of the `struct stat' data structure.  */
  27 #define _STAT_VER_NACL          0
  28 #define _STAT_VER_LINUX         1
  29
  30 #define _STAT_VER               _STAT_VER_LINUX
  31
  32 struct stat
  33   {
  34     __dev_t st_dev;             /* Device.  */
  35     __ino_t st_ino;             /* File serial number.  */
  36     __nlink_t st_nlink;         /* Link count.  */
  37     __mode_t st_mode;           /* File mode.  */
  38     __uid_t st_uid;             /* User ID of the file's owner. */
  39     __gid_t st_gid;             /* Group ID of the file's group.*/
  40     int __pad0;
  41     __dev_t st_rdev;            /* Device number, if device.  */
  42     __off_t st_size;            /* Size of file, in bytes.  */
  43     __blksize_t st_blksize;     /* Optimal block size for I/O.  */
  44     __blkcnt_t st_blocks;               /* Number 512-byte blocks allocated. */
  45 #if defined __USE_XOPEN2K8
  46     /* Nanosecond resolution timestamps are stored in a format
  47        equivalent to 'struct timespec'.  This is the type used
  48        whenever possible but the Unix namespace rules do not allow the
  49        identifier 'timespec' to appear in the <sys/stat.h> header.
  50        Therefore we have to handle the use of this header in strictly
  51        standard-compliant sources special.  */
  52     struct timespec st_atim;            /* Time of last access.  */
  53     struct timespec st_mtim;            /* Time of last modification.  */
  54     struct timespec st_ctim;            /* Time of last status change.  */
  55 # define st_atime st_atim.tv_sec        /* Backward compatibility.  */
  56 # define st_mtime st_mtim.tv_sec
  57 # define st_ctime st_ctim.tv_sec
  58 #else
  59     __time_t st_atime;                  /* Time of last access.  */
  60     __uint64_t st_atimensec;            /* Nsecs of last access.  */
  61     __time_t st_mtime;                  /* Time of last modification.  */
  62     __uint64_t st_mtimensec;            /* Nsecs of last modification.  */
  63     __time_t st_ctime;                  /* Time of last status change.  */
  64     __uint64_t st_ctimensec;            /* Nsecs of last status change.  */
  65 #endif
  66     __int64_t __unused[3];
  67   };
  68
  69 #ifdef __USE_LARGEFILE64
  70 /* Note stat64 has the same shape as stat for NaCl.  */
  71 struct stat64
  72   {
  73     __dev_t st_dev;             /* Device.  */
  74     __ino_t st_ino;             /* File serial number.  */
  75     __nlink_t st_nlink;         /* Link count.  */
  76     __mode_t st_mode;           /* File mode.  */
  77     __uid_t st_uid;             /* User ID of the file's owner. */
  78     __gid_t st_gid;             /* Group ID of the file's group.*/
  79     int __pad0;
  80     __dev_t st_rdev;            /* Device number, if device.  */
  81     __off_t st_size;            /* Size of file, in bytes.  */
  82     __blksize_t st_blksize;     /* Optimal block size for I/O.  */
  83     __blkcnt_t st_blocks;               /* Number 512-byte blocks allocated. */
  84 # if defined __USE_XOPEN2K8
  85     /* Nanosecond resolution timestamps are stored in a format
  86        equivalent to 'struct timespec'.  This is the type used
  87        whenever possible but the Unix namespace rules do not allow the
  88        identifier 'timespec' to appear in the <sys/stat.h> header.
  89        Therefore we have to handle the use of this header in strictly
  90        standard-compliant sources special.  */
  91     struct timespec st_atim;            /* Time of last access.  */
  92     struct timespec st_mtim;            /* Time of last modification.  */
  93     struct timespec st_ctim;            /* Time of last status change.  */
  94 #  define st_atime st_atim.tv_sec       /* Backward compatibility.  */
  95 #  define st_mtime st_mtim.tv_sec
  96 #  define st_ctime st_ctim.tv_sec
  97 # else
  98     __time_t st_atime;                  /* Time of last access.  */
  99     __uint64_t st_atimensec;            /* Nsecs of last access.  */
 100     __time_t st_mtime;                  /* Time of last modification.  */
 101     __uint64_t st_mtimensec;            /* Nsecs of last modification.  */
 102     __time_t st_ctime;                  /* Time of last status change.  */
 103     __uint64_t st_ctimensec;            /* Nsecs of last status change.  */
 104 # endif
 105     __int64_t __unused[3];
 106   };
 107 #endif
 108
 109 /* Tell code we have these members.  */
 110 #define _STATBUF_ST_BLKSIZE     1
 111 #define _STATBUF_ST_RDEV        1
 112 /* Nanosecond resolution time values are supported.  */
 113 #define _STATBUF_ST_NSEC        1
 114
 115 /* Encoding of the file mode.  */
 116
 117 #define __S_IFMT        0170000 /* These bits determine file type.  */
 118
 119 /* File types.  */
 120 #define __S_IFDIR       0040000 /* Directory.  */
 121 #define __S_IFCHR       0020000 /* Character device.  */
 122 #define __S_IFBLK       0060000 /* Block device.  */
 123 #define __S_IFREG       0100000 /* Regular file.  */
 124 #define __S_IFIFO       0010000 /* FIFO.  */
 125 #define __S_IFLNK       0120000 /* Symbolic link.  */
 126 #define __S_IFSOCK      0140000 /* Socket.  */
 127
 128 /* POSIX.1b objects.  Note that these macros always evaluate to zero.  But
 129    they do it by enforcing the correct use of the macros.  */
 130 #define __S_TYPEISMQ(buf)  ((buf)->st_mode - (buf)->st_mode)
 131 #define __S_TYPEISSEM(buf) ((buf)->st_mode - (buf)->st_mode)
 132 #define __S_TYPEISSHM(buf) ((buf)->st_mode - (buf)->st_mode)
 133
 134 /* Protection bits.  */
 135
 136 #define __S_ISUID       04000   /* Set user ID on execution.  */
 137 #define __S_ISGID       02000   /* Set group ID on execution.  */
 138 #define __S_ISVTX       01000   /* Save swapped text after use (sticky).  */
 139 #define __S_IREAD       0400    /* Read by owner.  */
 140 #define __S_IWRITE      0200    /* Write by owner.  */
 141 #define __S_IEXEC       0100    /* Execute by owner.  */
 142
 143 #ifdef __USE_ATFILE
 144 /* XXX missing: UTIME_NOW, UTIME_OMIT */
 145 #endif
 146
 147 #endif  /* bits/stat.h */