82 lines
3.1 KiB
C
82 lines
3.1 KiB
C
/*-
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* Copyright 2002 Massachusetts Institute of Technology
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*
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* Permission to use, copy, modify, and distribute this software and
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* its documentation for any purpose and without fee is hereby
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* granted, provided that both the above copyright notice and this
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* permission notice appear in all copies, that both the above
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* copyright notice and this permission notice appear in all
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* supporting documentation, and that the name of M.I.T. not be used
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* in advertising or publicity pertaining to distribution of the
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* software without specific, written prior permission. M.I.T. makes
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* no representations about the suitability of this software for any
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* purpose. It is provided "as is" without express or implied
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* warranty.
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*
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* THIS SOFTWARE IS PROVIDED BY M.I.T. ``AS IS''. M.I.T. DISCLAIMS
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* ALL EXPRESS OR IMPLIED WARRANTIES WITH REGARD TO THIS SOFTWARE,
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* INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT
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* SHALL M.I.T. BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
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* USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
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* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
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* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* $FreeBSD$
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*/
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#ifndef _SYS_STATVFS_H_
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#define _SYS_STATVFS_H_
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#include <sys/cdefs.h>
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#include <sys/_types.h>
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/*
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* POSIX says we must define the fsblkcnt_t and fsfilcnt_t types here.
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* Note that these must be unsigned integer types, so we have to be
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* careful in converting the signed statfs members to the unsigned
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* statvfs members. (Well, actually, we don't -- see below -- but
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* a quality implementation should.)
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*/
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#ifndef _FSBLKCNT_T_DECLARED /* always declared together */
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typedef __fsblkcnt_t fsblkcnt_t;
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typedef __fsfilcnt_t fsfilcnt_t;
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#define _FSBLKCNT_T_DECLARED
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#endif
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/*
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* The difference between `avail' and `free' is that `avail' represents
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* space available to unprivileged processes, whereas `free' includes all
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* unallocated space, including that reserved for privileged processes.
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* Or at least, that's the most useful interpretation. (According to
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* the letter of the standard, this entire interface is completely
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* unspecified!)
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*/
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struct statvfs {
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fsblkcnt_t f_bavail; /* Number of blocks */
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fsblkcnt_t f_bfree;
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fsblkcnt_t f_blocks;
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fsfilcnt_t f_favail; /* Number of files (e.g., inodes) */
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fsfilcnt_t f_ffree;
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fsfilcnt_t f_files;
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unsigned long f_bsize; /* Size of blocks counted above */
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unsigned long f_flag;
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unsigned long f_frsize; /* Size of fragments */
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unsigned long f_fsid; /* Not meaningful */
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unsigned long f_namemax; /* Same as pathconf(_PC_NAME_MAX) */
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};
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/* flag bits for f_flag: */
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#define ST_RDONLY 0x1
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#define ST_NOSUID 0x2
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__BEGIN_DECLS
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int fstatvfs(int, struct statvfs *);
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int statvfs(const char *__restrict, struct statvfs *__restrict);
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__END_DECLS
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#endif /* _SYS_STATVFS_H_ */
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