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 <bits/wordsize.h>
  13 #include <endian.h>
  14
  15 /* Versions of the `struct stat' data structure.  */
  16 #define _STAT_VER_LINUX_OLD     1
  17 #define _STAT_VER_KERNEL        1
  18 #define _STAT_VER_SVR4          2
  19 #define _STAT_VER_LINUX         3
  20 #define _STAT_VER               _STAT_VER_LINUX /* The one defined below.  */
  21
  22 /* Versions of the `xmknod' interface.  */
  23 #define _MKNOD_VER_LINUX        1
  24 #define _MKNOD_VER_SVR4         2
  25 #define _MKNOD_VER              _MKNOD_VER_LINUX /* The bits defined below.  */
  26
  27 /*
  28  * For 32-bit architectures, this struct is similar to the stat64 but it
  29  * uses 32-bit members along with 32-bit padding. For 64-bit architectures
  30  * this struct is exactly the same with the stat64 one
  31  */
  32 struct stat
  33   {
  34     unsigned long long st_dev;                  /* Device. */
  35     unsigned long long st_ino;                  /* 32bit file serial number. */
  36     unsigned int st_mode;                       /* File mode.  */
  37     unsigned int st_nlink;                      /* Link count.  */
  38     unsigned int st_uid;                        /* User ID of the file's owner. */
  39     unsigned int st_gid;                        /* Group ID of the file's group.*/
  40     unsigned long long st_rdev;                 /* Device number, if device.  */
  41     unsigned long long _pad1;
  42 #if __WORDSIZE == 64
  43     __off_t st_size;                            /* SIze of file, in bytes. */
  44 #else
  45     long long st_size;                          /* SIze of file, in bytes. */
  46 #endif
  47     int st_blksize;                             /* Optimal block size for I/O. */
  48     int __pad2;
  49     long long st_blocks;                        /* Number 512-byte blocks allocated */
  50 #ifdef __USE_MISC
  51     /* Nanosecond resolution timestamps are stored in a format
  52        equivalent to 'struct timespec'.  This is the type used
  53        whenever possible but the Unix namespace rules do not allow the
  54        identifier 'timespec' to appear in the <sys/stat.h> header.
  55        Therefore we have to handle the use of this header in strictly
  56        standard-compliant sources special.  */
  57     struct timespec st_atim;                    /* Time of last access.  */
  58     struct timespec st_mtim;                    /* Time of last modification.  */
  59     struct timespec st_ctim;                    /* Time of last status change.  */
  60 # define st_atime st_atim.tv_sec                /* Backward compatibility.  */
  61 # define st_mtime st_mtim.tv_sec
  62 # define st_ctime st_ctim.tv_sec
  63 #else
  64     int st_atime;                               /* Time of last access. */
  65     unsigned int st_atime_nsec;
  66     int st_mtime;                               /* Time of last modification. */
  67     unsigned int st_mtime_nsec;
  68     int st_ctime;                               /* Time of last status change. */
  69     unsigned int st_ctime_nsec;
  70 #endif
  71     unsigned int __unused4;
  72     unsigned int __unused5;
  73   } __ARCH_64BIT_ALIGNMENT__;
  74
  75
  76 #ifdef __USE_LARGEFILE64
  77 struct stat64
  78   {
  79     unsigned long long st_dev;                  /* Device. */
  80     unsigned long long st_ino;                  /* 32bit file serial number. */
  81     unsigned int st_mode;                       /* File mode.  */
  82     unsigned int st_nlink;                      /* Link count.  */
  83     unsigned int st_uid;                        /* User ID of the file's owner. */
  84     unsigned int st_gid;                        /* Group ID of the file's group.*/
  85     unsigned long long st_rdev;                 /* Device number, if device.  */
  86     unsigned long long __pad3;
  87     long long st_size;                          /* Size of file, in bytes. */
  88     int st_blksize;                             /* Optimal block size for I/O. */
  89     int __pad4;
  90     long long st_blocks;                        /* Number 512-byte blocks allocated */
  91 # ifdef __USE_MISC
  92     /* Nanosecond resolution timestamps are stored in a format
  93        equivalent to 'struct timespec'.  This is the type used
  94        whenever possible but the Unix namespace rules do not allow the
  95        identifier 'timespec' to appear in the <sys/stat.h> header.
  96        Therefore we have to handle the use of this header in strictly
  97        standard-compliant sources special.  */
  98     struct timespec st_atim;                    /* Time of last access.  */
  99     struct timespec st_mtim;                    /* Time of last modification.  */
 100     struct timespec st_ctim;                    /* Time of last status change.  */
 101 # else
 102     int st_atime;                               /* Time of last access. */
 103     unsigned int st_atime_nsec;
 104     int st_mtime;                               /* Time of last modification. */
 105     unsigned int st_mtime_nsec;
 106     int st_ctime;                               /* Time of last status change. */
 107     unsigned int st_ctime_nsec;
 108 # endif
 109     unsigned int __unused4;
 110     unsigned int __unused5;
 111 };
 112 #endif
 113
 114 /* Tell code we have these members.  */
 115 #define _STATBUF_ST_BLKSIZE
 116 #define _STATBUF_ST_RDEV
 117 /* Nanosecond resolution time values are supported.  */
 118 #define _STATBUF_ST_NSEC
 119
 120 /* Encoding of the file mode.  */
 121
 122 #define __S_IFMT        0170000 /* These bits determine file type.  */
 123
 124 /* File types.  */
 125 #define __S_IFDIR       0040000 /* Directory.  */
 126 #define __S_IFCHR       0020000 /* Character device.  */
 127 #define __S_IFBLK       0060000 /* Block device.  */
 128 #define __S_IFREG       0100000 /* Regular file.  */
 129 #define __S_IFIFO       0010000 /* FIFO.  */
 130 #define __S_IFLNK       0120000 /* Symbolic link.  */
 131 #define __S_IFSOCK      0140000 /* Socket.  */
 132
 133 /* POSIX.1b objects.  Note that these macros always evaluate to zero.  But
 134    they do it by enforcing the correct use of the macros.  */
 135 #define __S_TYPEISMQ(buf)  ((buf)->st_mode - (buf)->st_mode)
 136 #define __S_TYPEISSEM(buf) ((buf)->st_mode - (buf)->st_mode)
 137 #define __S_TYPEISSHM(buf) ((buf)->st_mode - (buf)->st_mode)
 138
 139 /* Protection bits.  */
 140
 141 #define __S_ISUID       04000   /* Set user ID on execution.  */
 142 #define __S_ISGID       02000   /* Set group ID on execution.  */
 143 #define __S_ISVTX       01000   /* Save swapped text after use (sticky).  */
 144 #define __S_IREAD       0400    /* Read by owner.  */
 145 #define __S_IWRITE      0200    /* Write by owner.  */
 146 #define __S_IEXEC       0100    /* Execute by owner.  */
 147
 148 #ifdef __USE_ATFILE
 149 # define UTIME_NOW      ((1l << 30) - 1l)
 150 # define UTIME_OMIT     ((1l << 30) - 2l)
 151 #endif