sysdeps/unix/sysv/linux/x86/bits/stat.h

   1 /* Copyright (C) 1999-2014 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 /* Versions of the `struct stat' data structure.  */
  26 #ifndef __x86_64__
  27 # define _STAT_VER_LINUX_OLD    1
  28 # define _STAT_VER_KERNEL       1
  29 # define _STAT_VER_SVR4         2
  30 # define _STAT_VER_LINUX        3
  31
  32 /* i386 versions of the `xmknod' interface.  */
  33 # define _MKNOD_VER_LINUX       1
  34 # define _MKNOD_VER_SVR4        2
  35 # define _MKNOD_VER             _MKNOD_VER_LINUX /* The bits defined below.  */
  36 #else
  37 # define _STAT_VER_KERNEL       0
  38 # define _STAT_VER_LINUX        1
  39
  40 /* x86-64 versions of the `xmknod' interface.  */
  41 # define _MKNOD_VER_LINUX       0
  42 #endif
  43
  44 #define _STAT_VER               _STAT_VER_LINUX
  45
  46 struct stat
  47   {
  48     __dev_t st_dev;             /* Device.  */
  49 #ifndef __x86_64__
  50     unsigned short int __pad1;
  51 #endif
  52 #if defined __x86_64__ || !defined __USE_FILE_OFFSET64
  53     __ino_t st_ino;             /* File serial number.  */
  54 #else
  55     __ino_t __st_ino;                   /* 32bit file serial number.    */
  56 #endif
  57 #ifndef __x86_64__
  58     __mode_t st_mode;                   /* File mode.  */
  59     __nlink_t st_nlink;                 /* Link count.  */
  60 #else
  61     __nlink_t st_nlink;         /* Link count.  */
  62     __mode_t st_mode;           /* File mode.  */
  63 #endif
  64     __uid_t st_uid;             /* User ID of the file's owner. */
  65     __gid_t st_gid;             /* Group ID of the file's group.*/
  66 #ifdef __x86_64__
  67     int __pad0;
  68 #endif
  69     __dev_t st_rdev;            /* Device number, if device.  */
  70 #ifndef __x86_64__
  71     unsigned short int __pad2;
  72 #endif
  73 #if defined __x86_64__ || !defined __USE_FILE_OFFSET64
  74     __off_t st_size;                    /* Size of file, in bytes.  */
  75 #else
  76     __off64_t st_size;                  /* Size of file, in bytes.  */
  77 #endif
  78     __blksize_t st_blksize;     /* Optimal block size for I/O.  */
  79 #if defined __x86_64__  || !defined __USE_FILE_OFFSET64
  80     __blkcnt_t st_blocks;               /* Number 512-byte blocks allocated. */
  81 #else
  82     __blkcnt64_t st_blocks;             /* Number 512-byte blocks allocated. */
  83 #endif
  84 #if defined __USE_MISC || 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     __syscall_ulong_t st_atimensec;     /* Nscecs of last access.  */
 100     __time_t st_mtime;                  /* Time of last modification.  */
 101     __syscall_ulong_t st_mtimensec;     /* Nsecs of last modification.  */
 102     __time_t st_ctime;                  /* Time of last status change.  */
 103     __syscall_ulong_t st_ctimensec;     /* Nsecs of last status change.  */
 104 #endif
 105 #ifdef __x86_64__
 106     __syscall_slong_t __glibc_reserved[3];
 107 #else
 108 # ifndef __USE_FILE_OFFSET64
 109     unsigned long int __glibc_reserved4;
 110     unsigned long int __glibc_reserved5;
 111 # else
 112     __ino64_t st_ino;                   /* File serial number.  */
 113 # endif
 114 #endif
 115   };
 116
 117 #ifdef __USE_LARGEFILE64
 118 /* Note stat64 has the same shape as stat for x86-64.  */
 119 struct stat64
 120   {
 121     __dev_t st_dev;             /* Device.  */
 122 # ifdef __x86_64__
 123     __ino64_t st_ino;           /* File serial number.  */
 124     __nlink_t st_nlink;         /* Link count.  */
 125     __mode_t st_mode;           /* File mode.  */
 126 # else
 127     unsigned int __pad1;
 128     __ino_t __st_ino;                   /* 32bit file serial number.    */
 129     __mode_t st_mode;                   /* File mode.  */
 130     __nlink_t st_nlink;                 /* Link count.  */
 131 # endif
 132     __uid_t st_uid;             /* User ID of the file's owner. */
 133     __gid_t st_gid;             /* Group ID of the file's group.*/
 134 # ifdef __x86_64__
 135     int __pad0;
 136     __dev_t st_rdev;            /* Device number, if device.  */
 137     __off_t st_size;            /* Size of file, in bytes.  */
 138 # else
 139     __dev_t st_rdev;                    /* Device number, if device.  */
 140     unsigned int __pad2;
 141     __off64_t st_size;                  /* Size of file, in bytes.  */
 142 # endif
 143     __blksize_t st_blksize;     /* Optimal block size for I/O.  */
 144     __blkcnt64_t st_blocks;     /* Nr. 512-byte blocks allocated.  */
 145 # if defined __USE_MISC || defined __USE_XOPEN2K8
 146     /* Nanosecond resolution timestamps are stored in a format
 147        equivalent to 'struct timespec'.  This is the type used
 148        whenever possible but the Unix namespace rules do not allow the
 149        identifier 'timespec' to appear in the <sys/stat.h> header.
 150        Therefore we have to handle the use of this header in strictly
 151        standard-compliant sources special.  */
 152     struct timespec st_atim;            /* Time of last access.  */
 153     struct timespec st_mtim;            /* Time of last modification.  */
 154     struct timespec st_ctim;            /* Time of last status change.  */
 155 # else
 156     __time_t st_atime;                  /* Time of last access.  */
 157     __syscall_ulong_t st_atimensec;     /* Nscecs of last access.  */
 158     __time_t st_mtime;                  /* Time of last modification.  */
 159     __syscall_ulong_t st_mtimensec;     /* Nsecs of last modification.  */
 160     __time_t st_ctime;                  /* Time of last status change.  */
 161     __syscall_ulong_t st_ctimensec;     /* Nsecs of last status change.  */
 162 # endif
 163 # ifdef __x86_64__
 164     __syscall_slong_t __glibc_reserved[3];
 165 # else
 166     __ino64_t st_ino;                   /* File serial number.          */
 167 # endif
 168   };
 169 #endif
 170
 171 /* Tell code we have these members.  */
 172 #define _STATBUF_ST_BLKSIZE
 173 #define _STATBUF_ST_RDEV
 174 /* Nanosecond resolution time values are supported.  */
 175 #define _STATBUF_ST_NSEC
 176
 177 /* Encoding of the file mode.  */
 178
 179 #define __S_IFMT        0170000 /* These bits determine file type.  */
 180
 181 /* File types.  */
 182 #define __S_IFDIR       0040000 /* Directory.  */
 183 #define __S_IFCHR       0020000 /* Character device.  */
 184 #define __S_IFBLK       0060000 /* Block device.  */
 185 #define __S_IFREG       0100000 /* Regular file.  */
 186 #define __S_IFIFO       0010000 /* FIFO.  */
 187 #define __S_IFLNK       0120000 /* Symbolic link.  */
 188 #define __S_IFSOCK      0140000 /* Socket.  */
 189
 190 /* POSIX.1b objects.  Note that these macros always evaluate to zero.  But
 191    they do it by enforcing the correct use of the macros.  */
 192 #define __S_TYPEISMQ(buf)  ((buf)->st_mode - (buf)->st_mode)
 193 #define __S_TYPEISSEM(buf) ((buf)->st_mode - (buf)->st_mode)
 194 #define __S_TYPEISSHM(buf) ((buf)->st_mode - (buf)->st_mode)
 195
 196 /* Protection bits.  */
 197
 198 #define __S_ISUID       04000   /* Set user ID on execution.  */
 199 #define __S_ISGID       02000   /* Set group ID on execution.  */
 200 #define __S_ISVTX       01000   /* Save swapped text after use (sticky).  */
 201 #define __S_IREAD       0400    /* Read by owner.  */
 202 #define __S_IWRITE      0200    /* Write by owner.  */
 203 #define __S_IEXEC       0100    /* Execute by owner.  */
 204
 205 #ifdef __USE_ATFILE
 206 # define UTIME_NOW      ((1l << 30) - 1l)
 207 # define UTIME_OMIT     ((1l << 30) - 2l)
 208 #endif
 209
 210 #endif  /* bits/stat.h */