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NetBSD/sys/sys/stat.h
bjh21 4be7a2dcf3 Add a new feature-test macro, _NETBSD_SOURCE. If this is defined 
by the application, all NetBSD interfaces are made visible, even
if some other feature-test macro (like _POSIX_C_SOURCE) is defined.
<sys/featuretest.h> defined _NETBSD_SOURCE if none of _ANSI_SOURCE,
_POSIX_C_SOURCE and _XOPEN_SOURCE is defined, so as to preserve
existing behaviour.

This has two major advantages:
+ Programs that require non-POSIX facilities but define _POSIX_C_SOURCE
  can trivially be overruled by putting -D_NETBSD_SOURCE in their CFLAGS.
+ It makes most of the #ifs simpler, in that they're all now ORs of the
  various macros, rather than having checks for (!defined(_ANSI_SOURCE) ||
  !defined(_POSIX_C_SOURCE) || !defined(_XOPEN_SOURCE)) all over the place.

I've tried not to change the semantics of the headers in any case where
_NETBSD_SOURCE wasn't defined, but there were some places where the
current semantics were clearly mad, and retaining them was harder than
correcting them.  In particular, I've mostly normalised things so that
_ANSI_SOURCE gets you the smallest set of stuff, then _POSIX_C_SOURCE,
_XOPEN_SOURCE and _NETBSD_SOURCE in that order.

Tested by building for vax, encouraged by thorpej, and uncontested in
tech-userlevel for a week.
2003-04-28 23:16:11 +00:00

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/* $NetBSD: stat.h,v 1.43 2003/04/28 23:16:30 bjh21 Exp $ */
/*-
* Copyright (c) 1982, 1986, 1989, 1993
* The Regents of the University of California. All rights reserved.
* (c) UNIX System Laboratories, Inc.
* All or some portions of this file are derived from material licensed
* to the University of California by American Telephone and Telegraph
* Co. or Unix System Laboratories, Inc. and are reproduced herein with
* the permission of UNIX System Laboratories, Inc.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the University of
* California, Berkeley and its contributors.
* 4. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* @(#)stat.h 8.12 (Berkeley) 8/17/94
*/
#ifndef _SYS_STAT_H_
#define _SYS_STAT_H_
#include <sys/featuretest.h>
#include <sys/types.h> /* XXX */
#if defined(_NETBSD_SOURCE)
#include <sys/time.h>
#endif
#ifdef _KERNEL
struct stat43 { /* BSD-4.3 stat struct */
u_int16_t st_dev; /* inode's device */
ino_t st_ino; /* inode's number */
u_int16_t st_mode; /* inode protection mode */
u_int16_t st_nlink; /* number of hard links */
u_int16_t st_uid; /* user ID of the file's owner */
u_int16_t st_gid; /* group ID of the file's group */
u_int16_t st_rdev; /* device type */
int32_t st_size; /* file size, in bytes */
struct timespec st_atimespec;/* time of last access */
struct timespec st_mtimespec;/* time of last data modification */
struct timespec st_ctimespec;/* time of last file status change */
int32_t st_blksize; /* optimal blocksize for I/O */
int32_t st_blocks; /* blocks allocated for file */
u_int32_t st_flags; /* user defined flags for file */
u_int32_t st_gen; /* file generation number */
};
#endif /* defined(_KERNEL) */
#if defined(__LIBC12_SOURCE__) || defined(_KERNEL)
struct stat12 { /* NetBSD-1.2 stat struct */
dev_t st_dev; /* inode's device */
ino_t st_ino; /* inode's number */
u_int16_t st_mode; /* inode protection mode */
u_int16_t st_nlink; /* number of hard links */
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 type */
struct timespec st_atimespec;/* time of last access */
struct timespec st_mtimespec;/* time of last data modification */
struct timespec st_ctimespec;/* time of last file status change */
off_t st_size; /* file size, in bytes */
int64_t st_blocks; /* blocks allocated for file */
u_int32_t st_blksize; /* optimal blocksize for I/O */
u_int32_t st_flags; /* user defined flags for file */
u_int32_t st_gen; /* file generation number */
int32_t st_lspare;
int64_t st_qspare[2];
};
#endif /* defined(__LIBC12_SOURCE__) || defined(_KERNEL) */
/*
* On systems with 8 byte longs and 4 byte time_ts, padding the time_ts
* is required in order to have a consistent ABI. This is because the
* stat structure used to contain timespecs, which had different
* alignment constraints than a time_t and a long alone. The padding
* should be removed the next time the stat structure ABI is changed.
* (This will happen whever we change to 8 byte time_t.)
*/
#if defined(_LP64) /* XXXX && _BSD_TIME_T_ == int */
#define __STATPAD(x) int x;
#else
#define __STATPAD(x) /* nothing */
#endif
struct stat {
dev_t st_dev; /* inode's device */
ino_t st_ino; /* inode's number */
mode_t st_mode; /* inode protection mode */
nlink_t st_nlink; /* number of hard links */
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 type */
#if defined(_NETBSD_SOURCE)
struct timespec st_atimespec;/* time of last access */
struct timespec st_mtimespec;/* time of last data modification */
struct timespec st_ctimespec;/* time of last file status change */
#else
__STATPAD(__pad0)
time_t st_atime; /* time of last access */
__STATPAD(__pad1)
long st_atimensec; /* nsec of last access */
time_t st_mtime; /* time of last data modification */
__STATPAD(__pad2)
long st_mtimensec; /* nsec of last data modification */
time_t st_ctime; /* time of last file status change */
__STATPAD(__pad3)
long st_ctimensec; /* nsec of last file status change */
#endif
off_t st_size; /* file size, in bytes */
blkcnt_t st_blocks; /* blocks allocated for file */
blksize_t st_blksize; /* optimal blocksize for I/O */
u_int32_t st_flags; /* user defined flags for file */
u_int32_t st_gen; /* file generation number */
u_int32_t st_spare0;
#if defined(_NETBSD_SOURCE)
struct timespec st_birthtimespec;
#else
time_t st_birthtime;
__STATPAD(__pad4)
long st_birthtimensec;
#endif
#if !defined(_LP64)
int __pad5;
#endif
};
#undef __STATPAD
#if defined(_NETBSD_SOURCE)
#define st_atime st_atimespec.tv_sec
#define st_atimensec st_atimespec.tv_nsec
#define st_mtime st_mtimespec.tv_sec
#define st_mtimensec st_mtimespec.tv_nsec
#define st_ctime st_ctimespec.tv_sec
#define st_ctimensec st_ctimespec.tv_nsec
#define st_birthtime st_birthtimespec.tv_sec
#define st_birthtimensec st_birthtimespec.tv_nsec
#endif
#define S_ISUID 0004000 /* set user id on execution */
#define S_ISGID 0002000 /* set group id on execution */
#if defined(_NETBSD_SOURCE)
#define S_ISTXT 0001000 /* sticky bit */
#endif
#define S_IRWXU 0000700 /* RWX mask for owner */
#define S_IRUSR 0000400 /* R for owner */
#define S_IWUSR 0000200 /* W for owner */
#define S_IXUSR 0000100 /* X for owner */
#if defined(_NETBSD_SOURCE)
#define S_IREAD S_IRUSR
#define S_IWRITE S_IWUSR
#define S_IEXEC S_IXUSR
#endif
#define S_IRWXG 0000070 /* RWX mask for group */
#define S_IRGRP 0000040 /* R for group */
#define S_IWGRP 0000020 /* W for group */
#define S_IXGRP 0000010 /* X for group */
#define S_IRWXO 0000007 /* RWX mask for other */
#define S_IROTH 0000004 /* R for other */
#define S_IWOTH 0000002 /* W for other */
#define S_IXOTH 0000001 /* X for other */
#define _S_IFMT 0170000 /* type of file mask */
#define _S_IFIFO 0010000 /* named pipe (fifo) */
#define _S_IFCHR 0020000 /* character special */
#define _S_IFDIR 0040000 /* directory */
#define _S_IFBLK 0060000 /* block special */
#define _S_IFREG 0100000 /* regular */
#define _S_IFLNK 0120000 /* symbolic link */
#define _S_ISVTX 0001000 /* save swapped text even after use */
#define _S_IFSOCK 0140000 /* socket */
#define _S_IFWHT 0160000 /* whiteout */
#define _S_ARCH1 0200000 /* Archive state 1, ls -l shows 'a' */
#define _S_ARCH2 0400000 /* Archive state 2, ls -l shows 'A' */
#if defined(_XOPEN_SOURCE) || defined(_NETBSD_SOURCE)
#define S_IFMT _S_IFMT
#define S_IFIFO _S_IFIFO
#define S_IFCHR _S_IFCHR
#define S_IFDIR _S_IFDIR
#define S_IFBLK _S_IFBLK
#define S_IFREG _S_IFREG
#define S_IFLNK _S_IFLNK
#define S_ISVTX _S_ISVTX
#endif
#if defined(_NETBSD_SOURCE)
#define S_IFSOCK _S_IFSOCK
#define S_IFWHT _S_IFWHT
#define S_ARCH1 _S_ARCH1
#define S_ARCH2 _S_ARCH2
#endif
#define S_ISDIR(m) ((m & _S_IFMT) == _S_IFDIR) /* directory */
#define S_ISCHR(m) ((m & _S_IFMT) == _S_IFCHR) /* char special */
#define S_ISBLK(m) ((m & _S_IFMT) == _S_IFBLK) /* block special */
#define S_ISREG(m) ((m & _S_IFMT) == _S_IFREG) /* regular file */
#define S_ISFIFO(m) ((m & _S_IFMT) == _S_IFIFO) /* fifo */
#if defined(_XOPEN_SOURCE) || defined(_NETBSD_SOURCE)
#define S_ISLNK(m) ((m & _S_IFMT) == _S_IFLNK) /* symbolic link */
#endif
#if defined(_NETBSD_SOURCE)
#define S_ISSOCK(m) ((m & _S_IFMT) == _S_IFSOCK) /* socket */
#define S_ISWHT(m) ((m & _S_IFMT) == _S_IFWHT) /* whiteout */
#endif
#if defined(_NETBSD_SOURCE)
#define ACCESSPERMS (S_IRWXU|S_IRWXG|S_IRWXO) /* 0777 */
/* 7777 */
#define ALLPERMS (S_ISUID|S_ISGID|S_ISTXT|S_IRWXU|S_IRWXG|S_IRWXO)
/* 0666 */
#define DEFFILEMODE (S_IRUSR|S_IWUSR|S_IRGRP|S_IWGRP|S_IROTH|S_IWOTH)
#define S_BLKSIZE 512 /* block size used in the stat struct */
/*
* Definitions of flags stored in file flags word.
*
* Super-user and owner changeable flags.
*/
#define UF_SETTABLE 0x0000ffff /* mask of owner changeable flags */
#define UF_NODUMP 0x00000001 /* do not dump file */
#define UF_IMMUTABLE 0x00000002 /* file may not be changed */
#define UF_APPEND 0x00000004 /* writes to file may only append */
#define UF_OPAQUE 0x00000008 /* directory is opaque wrt. union */
/*
* Super-user changeable flags.
*/
#define SF_SETTABLE 0xffff0000 /* mask of superuser changeable flags */
#define SF_ARCHIVED 0x00010000 /* file is archived */
#define SF_IMMUTABLE 0x00020000 /* file may not be changed */
#define SF_APPEND 0x00040000 /* writes to file may only append */
#ifdef _KERNEL
/*
* Shorthand abbreviations of above.
*/
#define OPAQUE (UF_OPAQUE)
#define APPEND (UF_APPEND | SF_APPEND)
#define IMMUTABLE (UF_IMMUTABLE | SF_IMMUTABLE)
#endif /* _KERNEL */
#endif /* _NETBSD_SOURCE */
#if !defined(_KERNEL) && !defined(_STANDALONE)
#include <sys/cdefs.h>
__BEGIN_DECLS
int chmod __P((const char *, mode_t));
int mkdir __P((const char *, mode_t));
int mkfifo __P((const char *, mode_t));
#ifdef __LIBC12_SOURCE__
int stat __P((const char *, struct stat12 *));
int fstat __P((int, struct stat12 *));
int __stat13 __P((const char *, struct stat *));
int __fstat13 __P((int, struct stat *));
#else
int stat __P((const char *, struct stat *)) __RENAME(__stat13);
int fstat __P((int, struct stat *)) __RENAME(__fstat13);
#endif
mode_t umask __P((mode_t));
#if defined(_XOPEN_SOURCE) || defined(_NETBSD_SOURCE)
int fchmod __P((int, mode_t));
#ifdef __LIBC12_SOURCE__
int lstat __P((const char *, struct stat12 *));
int __lstat13 __P((const char *, struct stat *));
#else
int lstat __P((const char *, struct stat *)) __RENAME(__lstat13);
#endif
int mknod __P((const char *, mode_t, dev_t));
#endif /* defined(_XOPEN_SOURCE) || defined(_NETBSD_SOURCE) */
#if defined(_NETBSD_SOURCE)
int chflags __P((const char *, unsigned long));
int fchflags __P((int, unsigned long));
int lchflags __P((const char *, unsigned long));
int lchmod __P((const char *, mode_t));
#endif /* defined(_NETBSD_SOURCE) */
__END_DECLS
#endif /* !_KERNEL && !_STANDALONE */
#endif /* !_SYS_STAT_H_ */
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