| /* Copyright (C) 2011-2014 Free Software Foundation, Inc. |
| This file is part of the GNU C Library. |
| Contributed by Chris Metcalf <cmetcalf@tilera.com>, 2011. |
| |
| The GNU C Library is free software; you can redistribute it and/or |
| modify it under the terms of the GNU Lesser General Public |
| License as published by the Free Software Foundation; either |
| version 2.1 of the License, or (at your option) any later version. |
| |
| The GNU C Library is distributed in the hope that it will be useful, |
| but WITHOUT ANY WARRANTY; without even the implied warranty of |
| MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| Lesser General Public License for more details. |
| |
| You should have received a copy of the GNU Lesser General Public |
| License along with the GNU C Library. If not, see |
| <http://www.gnu.org/licenses/>. */ |
| |
| #if !defined _SYS_STAT_H && !defined _FCNTL_H |
| # error "Never include <bits/stat.h> directly; use <sys/stat.h> instead." |
| #endif |
| |
| #ifndef _BITS_STAT_H |
| #define _BITS_STAT_H 1 |
| |
| #include <endian.h> |
| #include <bits/wordsize.h> |
| |
| /* 64-bit libc uses the kernel's 'struct stat', accessed via the |
| stat() syscall; 32-bit libc uses the kernel's 'struct stat64' |
| and accesses it via the stat64() syscall. All the various |
| APIs offered by libc use the kernel shape for their struct stat |
| structure; the only difference is that 32-bit programs not |
| using __USE_FILE_OFFSET64 only see the low 32 bits of some |
| of the fields (specifically st_ino, st_size, and st_blocks). */ |
| #define _STAT_VER_KERNEL 0 |
| #define _STAT_VER_LINUX 0 |
| #define _STAT_VER _STAT_VER_KERNEL |
| |
| /* Versions of the `xmknod' interface. */ |
| #define _MKNOD_VER_LINUX 0 |
| |
| #if defined __USE_FILE_OFFSET64 |
| # define __field64(type, type64, name) type64 name |
| #elif __WORDSIZE == 64 |
| # define __field64(type, type64, name) type name |
| #elif __BYTE_ORDER == __LITTLE_ENDIAN |
| # define __field64(type, type64, name) \ |
| type name __attribute__((__aligned__ (__alignof__ (type64)))); int __##name##_pad |
| #else |
| # define __field64(type, type64, name) \ |
| int __##name##_pad __attribute__((__aligned__ (__alignof__ (type64)))); type name |
| #endif |
| |
| struct stat |
| { |
| __dev_t st_dev; /* Device. */ |
| __field64(__ino_t, __ino64_t, st_ino); /* File serial number. */ |
| __mode_t st_mode; /* File mode. */ |
| __nlink_t st_nlink; /* Link count. */ |
| __uid_t st_uid; /* User ID of the file's owner. */ |
| __gid_t st_gid; /* Group ID of the file's group.*/ |
| __dev_t st_rdev; /* Device number, if device. */ |
| __dev_t __pad1; |
| __field64(__off_t, __off64_t, st_size); /* Size of file, in bytes. */ |
| __blksize_t st_blksize; /* Optimal block size for I/O. */ |
| int __pad2; |
| __field64(__blkcnt_t, __blkcnt64_t, st_blocks); /* 512-byte blocks */ |
| #ifdef __USE_MISC |
| /* Nanosecond resolution timestamps are stored in a format |
| equivalent to 'struct timespec'. This is the type used |
| whenever possible but the Unix namespace rules do not allow the |
| identifier 'timespec' to appear in the <sys/stat.h> header. |
| Therefore we have to handle the use of this header in strictly |
| standard-compliant sources special. */ |
| struct timespec st_atim; /* Time of last access. */ |
| struct timespec st_mtim; /* Time of last modification. */ |
| struct timespec st_ctim; /* Time of last status change. */ |
| # define st_atime st_atim.tv_sec /* Backward compatibility. */ |
| # define st_mtime st_mtim.tv_sec |
| # define st_ctime st_ctim.tv_sec |
| #else |
| __time_t st_atime; /* Time of last access. */ |
| unsigned long int st_atimensec; /* Nscecs of last access. */ |
| __time_t st_mtime; /* Time of last modification. */ |
| unsigned long int st_mtimensec; /* Nsecs of last modification. */ |
| __time_t st_ctime; /* Time of last status change. */ |
| unsigned long int st_ctimensec; /* Nsecs of last status change. */ |
| #endif |
| int __glibc_reserved[2]; |
| }; |
| |
| #undef __field64 |
| |
| #ifdef __USE_LARGEFILE64 |
| struct stat64 |
| { |
| __dev_t st_dev; /* Device. */ |
| __ino64_t st_ino; /* File serial number. */ |
| __mode_t st_mode; /* File mode. */ |
| __nlink_t st_nlink; /* Link count. */ |
| __uid_t st_uid; /* User ID of the file's owner. */ |
| __gid_t st_gid; /* Group ID of the file's group.*/ |
| __dev_t st_rdev; /* Device number, if device. */ |
| __dev_t __pad1; |
| __off64_t st_size; /* Size of file, in bytes. */ |
| __blksize_t st_blksize; /* Optimal block size for I/O. */ |
| int __pad2; |
| __blkcnt64_t st_blocks; /* Nr. 512-byte blocks allocated. */ |
| #ifdef __USE_MISC |
| /* Nanosecond resolution timestamps are stored in a format |
| equivalent to 'struct timespec'. This is the type used |
| whenever possible but the Unix namespace rules do not allow the |
| identifier 'timespec' to appear in the <sys/stat.h> header. |
| Therefore we have to handle the use of this header in strictly |
| standard-compliant sources special. */ |
| struct timespec st_atim; /* Time of last access. */ |
| struct timespec st_mtim; /* Time of last modification. */ |
| struct timespec st_ctim; /* Time of last status change. */ |
| #else |
| __time_t st_atime; /* Time of last access. */ |
| unsigned long int st_atimensec; /* Nscecs of last access. */ |
| __time_t st_mtime; /* Time of last modification. */ |
| unsigned long int st_mtimensec; /* Nsecs of last modification. */ |
| __time_t st_ctime; /* Time of last status change. */ |
| unsigned long int st_ctimensec; /* Nsecs of last status change. */ |
| #endif |
| int __glibc_reserved[2]; |
| }; |
| #endif |
| |
| /* Tell code we have these members. */ |
| #define _STATBUF_ST_BLKSIZE |
| #define _STATBUF_ST_RDEV |
| /* Nanosecond resolution time values are supported. */ |
| #define _STATBUF_ST_NSEC |
| |
| /* Encoding of the file mode. */ |
| |
| #define __S_IFMT 0170000 /* These bits determine file type. */ |
| |
| /* File types. */ |
| #define __S_IFDIR 0040000 /* Directory. */ |
| #define __S_IFCHR 0020000 /* Character device. */ |
| #define __S_IFBLK 0060000 /* Block device. */ |
| #define __S_IFREG 0100000 /* Regular file. */ |
| #define __S_IFIFO 0010000 /* FIFO. */ |
| #define __S_IFLNK 0120000 /* Symbolic link. */ |
| #define __S_IFSOCK 0140000 /* Socket. */ |
| |
| /* POSIX.1b objects. Note that these macros always evaluate to zero. But |
| they do it by enforcing the correct use of the macros. */ |
| #define __S_TYPEISMQ(buf) ((buf)->st_mode - (buf)->st_mode) |
| #define __S_TYPEISSEM(buf) ((buf)->st_mode - (buf)->st_mode) |
| #define __S_TYPEISSHM(buf) ((buf)->st_mode - (buf)->st_mode) |
| |
| /* Protection bits. */ |
| |
| #define __S_ISUID 04000 /* Set user ID on execution. */ |
| #define __S_ISGID 02000 /* Set group ID on execution. */ |
| #define __S_ISVTX 01000 /* Save swapped text after use (sticky). */ |
| #define __S_IREAD 0400 /* Read by owner. */ |
| #define __S_IWRITE 0200 /* Write by owner. */ |
| #define __S_IEXEC 0100 /* Execute by owner. */ |
| |
| #ifdef __USE_ATFILE |
| # define UTIME_NOW ((1l << 30) - 1l) |
| # define UTIME_OMIT ((1l << 30) - 2l) |
| #endif |
| |
| #endif /* bits/stat.h */ |
