libc/sysdeps/linux/common-generic/bits/stat.h

   1 /*
   2  * Copyright (C) 2000-2006 Erik Andersen <andersen@uclibc.org>
   3  *
   4  * Licensed under the LGPL v2.1, see the file COPYING.LIB in this tarball.
   5  */
   6
   7 #ifndef _SYS_STAT_H
   8 # error "Never include <bits/stat.h> directly; use <sys/stat.h> instead."
   9 #endif
  10
  11 #include <bits/align64bit.h>
  12 #include <endian.h>
  13
  14 /* Versions of the `struct stat' data structure.  */
  15 #define _STAT_VER_LINUX_OLD     1
  16 #define _STAT_VER_KERNEL        1
  17 #define _STAT_VER_SVR4          2
  18 #define _STAT_VER_LINUX         3
  19 #define _STAT_VER               _STAT_VER_LINUX /* The one defined below.  */
  20
  21 /* Versions of the `xmknod' interface.  */
  22 #define _MKNOD_VER_LINUX        1
  23 #define _MKNOD_VER_SVR4         2
  24 #define _MKNOD_VER              _MKNOD_VER_LINUX /* The bits defined below.  */
  25
  26 /*
  27  * For 32-bit architectures, this struct is similar to the stat64 but it
  28  * uses 32-bit members along with 32-bit padding. For 64-bit architectures
  29  * this struct is exactly the same with the stat64 one
  30  */
  31 struct stat
  32   {
  33     unsigned long long st_dev;                  /* Device. */
  34     unsigned long long st_ino;                  /* 32bit file serial number. */
  35     unsigned int st_mode;                       /* File mode.  */
  36     unsigned int st_nlink;                      /* Link count.  */
  37     unsigned int st_uid;                        /* User ID of the file's owner. */
  38     unsigned int st_gid;                        /* Group ID of the file's group.*/
  39     unsigned long long st_rdev;                 /* Device number, if device.  */
  40     unsigned long long _pad1;
  41     long long st_size;                          /* SIze of file, in bytes. */
  42     int st_blksize;                             /* Optimal block size for I/O. */
  43     int __pad2;
  44     long long st_blocks;                        /* Number 512-byte blocks allocated */
  45 #ifdef __USE_MISC
  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     int st_atime;                               /* Time of last access. */
  60     unsigned int st_atime_nsec;
  61     int st_mtime;                               /* Time of last modification. */
  62     unsigned int st_mtime_nsec;
  63     int st_ctime;                               /* Time of last status change. */
  64     unsigned int st_ctime_nsec;
  65 #endif
  66     unsigned int __unused4;
  67     unsigned int __unused5;
  68   } __ARCH_64BIT_ALIGNMENT__;
  69
  70
  71 #ifdef __USE_LARGEFILE64
  72 struct stat64
  73   {
  74     unsigned long long st_dev;                  /* Device. */
  75     unsigned long long st_ino;                  /* 32bit file serial number. */
  76     unsigned int st_mode;                       /* File mode.  */
  77     unsigned int st_nlink;                      /* Link count.  */
  78     unsigned int st_uid;                        /* User ID of the file's owner. */
  79     unsigned int st_gid;                        /* Group ID of the file's group.*/
  80     unsigned long long st_rdev;                 /* Device number, if device.  */
  81     unsigned long long __pad3;
  82     long long st_size;                          /* Size of file, in bytes. */
  83     int st_blksize;                             /* Optimal block size for I/O. */
  84     int __pad4;
  85     long long st_blocks;                        /* Number 512-byte blocks allocated */
  86 # ifdef __USE_MISC
  87     /* Nanosecond resolution timestamps are stored in a format
  88        equivalent to 'struct timespec'.  This is the type used
  89        whenever possible but the Unix namespace rules do not allow the
  90        identifier 'timespec' to appear in the <sys/stat.h> header.
  91        Therefore we have to handle the use of this header in strictly
  92        standard-compliant sources special.  */
  93     struct timespec st_atim;                    /* Time of last access.  */
  94     struct timespec st_mtim;                    /* Time of last modification.  */
  95     struct timespec st_ctim;                    /* Time of last status change.  */
  96 # else
  97     int st_atime;                               /* Time of last access. */
  98     unsigned int st_atime_nsec;
  99     int st_mtime;                               /* Time of last modification. */
 100     unsigned int st_mtime_nsec;
 101     int st_ctime;                               /* Time of last status change. */
 102     unsigned int st_ctime_nsec;
 103 # endif
 104     unsigned int __unused4;
 105     unsigned int __unused5;
 106 };
 107 #endif
 108
 109 /* Tell code we have these members.  */
 110 #define _STATBUF_ST_BLKSIZE
 111 #define _STATBUF_ST_RDEV
 112 /* Nanosecond resolution time values are supported.  */
 113 #define _STATBUF_ST_NSEC
 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 # define UTIME_NOW      ((1l << 30) - 1l)
 145 # define UTIME_OMIT     ((1l << 30) - 2l)
 146 #endif