sysdeps/unix/sysv/linux/x86_64/bits/stat.h

   1 /* Copyright (C) 1999,2000,2001,2002,2003 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, write to the Free
  16    Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
  17    02111-1307 USA.  */
  18
  19 #ifndef _SYS_STAT_H
  20 # error "Never include <bits/stat.h> directly; use <sys/stat.h> instead."
  21 #endif
  22
  23 /* Versions of the `struct stat' data structure.  */
  24 #define _STAT_VER_KERNEL        0
  25
  26 #if __WORDSIZE == 32
  27 # define _STAT_VER_SVR4         2
  28 # define _STAT_VER_LINUX        3
  29
  30 /* i386 versions of the `xmknod' interface.  */
  31 # define _MKNOD_VER_LINUX       1
  32 # define _MKNOD_VER_SVR4        2
  33 # define _MKNOD_VER             _MKNOD_VER_LINUX /* The bits defined below.  */
  34 #else
  35 # define _STAT_VER_LINUX        1
  36
  37 /* x86-64 versions of the `xmknod' interface.  */
  38 # define _MKNOD_VER_LINUX       0
  39 #endif
  40
  41 #define _STAT_VER               _STAT_VER_LINUX
  42
  43 struct stat
  44   {
  45     __dev_t st_dev;             /* Device.  */
  46 #if __WORDSIZE == 32
  47     unsigned short int __pad1;
  48 #endif
  49 #if __WORDSIZE == 64 || !defined __USE_FILE_OFFSET64
  50     __ino_t st_ino;             /* File serial number.  */
  51 #else
  52     __ino_t __st_ino;                   /* 32bit file serial number.    */
  53 #endif
  54 #if __WORDSIZE == 32
  55     __mode_t st_mode;                   /* File mode.  */
  56     __nlink_t st_nlink;                 /* Link count.  */
  57 #else
  58     __nlink_t st_nlink;         /* Link count.  */
  59     __mode_t st_mode;           /* File mode.  */
  60 #endif
  61     __uid_t st_uid;             /* User ID of the file's owner. */
  62     __gid_t st_gid;             /* Group ID of the file's group.*/
  63 #if __WORDSIZE == 64
  64     int __pad0;
  65 #endif
  66     __dev_t st_rdev;            /* Device number, if device.  */
  67 #if __WORDSIZE == 32
  68     unsigned short int __pad2;
  69 #endif
  70 #if __WORDSIZE == 64 || !defined __USE_FILE_OFFSET64
  71     __off_t st_size;                    /* Size of file, in bytes.  */
  72 #else
  73     __off64_t st_size;                  /* Size of file, in bytes.  */
  74 #endif
  75     __blksize_t st_blksize;     /* Optimal block size for I/O.  */
  76 #if __WORDSIZE == 64 || !defined __USE_FILE_OFFSET64
  77     __blkcnt_t st_blocks;               /* Number 512-byte blocks allocated. */
  78 #else
  79     __blkcnt64_t st_blocks;             /* Number 512-byte blocks allocated. */
  80 #endif
  81 #ifdef __USE_MISC
  82     /* Nanosecond resolution timestamps are stored in a format
  83        equivalent to 'struct timespec'.  This is the type used
  84        whenever possible but the Unix namespace rules do not allow the
  85        identifier 'timespec' to appear in the <sys/stat.h> header.
  86        Therefore we have to handle the use of this header in strictly
  87        standard-compliant sources special.  */
  88     struct timespec st_atim;            /* Time of last access.  */
  89     struct timespec st_mtim;            /* Time of last modification.  */
  90     struct timespec st_ctim;            /* Time of last status change.  */
  91 # define st_atime st_atim.tv_sec        /* Backward compatibility.  */
  92 # define st_mtime st_mtim.tv_sec
  93 # define st_ctime st_ctim.tv_sec
  94 #else
  95     __time_t st_atime;                  /* Time of last access.  */
  96     unsigned long int st_atimensec;     /* Nscecs of last access.  */
  97     __time_t st_mtime;                  /* Time of last modification.  */
  98     unsigned long int st_mtimensec;     /* Nsecs of last modification.  */
  99     __time_t st_ctime;                  /* Time of last status change.  */
 100     unsigned long int st_ctimensec;     /* Nsecs of last status change.  */
 101 #endif
 102 #if __WORDSIZE == 64
 103     long int __unused[3];
 104 #else
 105 # ifndef __USE_FILE_OFFSET64
 106     unsigned long int __unused4;
 107     unsigned long int __unused5;
 108 # else
 109     __ino64_t st_ino;                   /* File serial number.  */
 110 # endif
 111 #endif
 112   };
 113
 114 #ifdef __USE_LARGEFILE64
 115 /* Note stat64 has the same shape as stat for x86-64.  */
 116 struct stat64
 117   {
 118     __dev_t st_dev;             /* Device.  */
 119 #if __WORDSIZE == 64
 120     __ino64_t st_ino;           /* File serial number.  */
 121     __nlink_t st_nlink;         /* Link count.  */
 122     __mode_t st_mode;           /* File mode.  */
 123 #else
 124     unsigned int __pad1;
 125     __ino_t __st_ino;                   /* 32bit file serial number.    */
 126     __mode_t st_mode;                   /* File mode.  */
 127     __nlink_t st_nlink;                 /* Link count.  */
 128 #endif
 129     __uid_t st_uid;             /* User ID of the file's owner. */
 130     __gid_t st_gid;             /* Group ID of the file's group.*/
 131 #if __WORDSIZE == 64
 132     int __pad0;
 133     __dev_t st_rdev;            /* Device number, if device.  */
 134     __off_t st_size;            /* Size of file, in bytes.  */
 135 #else
 136     __dev_t st_rdev;                    /* Device number, if device.  */
 137     unsigned int __pad2;
 138     __off64_t st_size;                  /* Size of file, in bytes.  */
 139 #endif
 140     __blksize_t st_blksize;     /* Optimal block size for I/O.  */
 141     __blkcnt64_t st_blocks;     /* Nr. 512-byte blocks allocated.  */
 142 #ifdef __USE_MISC
 143     /* Nanosecond resolution timestamps are stored in a format
 144        equivalent to 'struct timespec'.  This is the type used
 145        whenever possible but the Unix namespace rules do not allow the
 146        identifier 'timespec' to appear in the <sys/stat.h> header.
 147        Therefore we have to handle the use of this header in strictly
 148        standard-compliant sources special.  */
 149     struct timespec st_atim;            /* Time of last access.  */
 150     struct timespec st_mtim;            /* Time of last modification.  */
 151     struct timespec st_ctim;            /* Time of last status change.  */
 152 # define st_atime st_atim.tv_sec        /* Backward compatibility.  */
 153 # define st_mtime st_mtim.tv_sec
 154 # define st_ctime st_ctim.tv_sec
 155 #else
 156     __time_t st_atime;                  /* Time of last access.  */
 157     unsigned long int st_atimensec;     /* Nscecs of last access.  */
 158     __time_t st_mtime;                  /* Time of last modification.  */
 159     unsigned long int st_mtimensec;     /* Nsecs of last modification.  */
 160     __time_t st_ctime;                  /* Time of last status change.  */
 161     unsigned long int st_ctimensec;     /* Nsecs of last status change.  */
 162 #endif
 163 #if __WORDSIZE == 64
 164     long int __unused[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 #if defined __USE_ATFILE || defined __USE_GNU
 206 /* XXX This will change to the macro for the next 2008 POSIX revision.  */
 207 # define UTIME_NOW      ((1l << 30) - 1l)
 208 # define UTIME_OMIT     ((1l << 30) - 2l)
 209 #endif