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      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
    210