2004-11-03 13:51:07 +00:00
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.\" Copyright (c) 2001-2003 The Open Group, All Rights Reserved
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2007-06-20 22:33:04 +00:00
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.TH "<sys/statvfs.h>" 0P 2003 "IEEE/The Open Group" "POSIX Programmer's Manual"
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2004-11-03 13:51:07 +00:00
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.\" <sys/statvfs.h>
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.SH NAME
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sys/statvfs.h \- VFS File System information structure
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.SH SYNOPSIS
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.LP
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\fB#include <sys/statvfs.h> \fP
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.SH DESCRIPTION
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.LP
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The \fI<sys/statvfs.h>\fP header shall define the \fBstatvfs\fP structure
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that includes at least the following
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members:
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.sp
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.RS
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.nf
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\fBunsigned long f_bsize \fP File system block size. \fB
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unsigned long f_frsize \fP Fundamental file system block size. \fB
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fsblkcnt_t f_blocks \fP Total number of blocks on file system in units of \fIf_frsize.\fP \fB
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fsblkcnt_t f_bfree \fP Total number of free blocks. \fB
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fsblkcnt_t f_bavail \fP Number of free blocks available to \fB
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\fP non-privileged process. \fB
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fsfilcnt_t f_files \fP Total number of file serial numbers. \fB
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fsfilcnt_t f_ffree \fP Total number of free file serial numbers. \fB
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fsfilcnt_t f_favail \fP Number of file serial numbers available to \fB
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\fP non-privileged process. \fB
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unsigned long f_fsid \fP File system ID. \fB
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unsigned long f_flag \fP Bit mask of \fIf_flag\fP values. \fB
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unsigned long f_namemax \fP Maximum filename length. \fB
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\fP
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.fi
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.RE
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.LP
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The \fBfsblkcnt_t\fP and \fBfsfilcnt_t\fP types shall be defined as
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described in \fI<sys/types.h>\fP .
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.LP
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The following flags for the \fIf_flag\fP member shall be defined:
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.TP 7
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ST_RDONLY
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Read-only file system.
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.TP 7
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ST_NOSUID
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Does not support the semantics of the ST_ISUID and ST_ISGID file mode
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bits.
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.sp
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.LP
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The following shall be declared as functions and may also be defined
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as macros. Function prototypes shall be provided.
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.sp
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.RS
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.nf
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\fBint statvfs(const char *restrict, struct statvfs *restrict);
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int fstatvfs(int, struct statvfs *);
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\fP
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.fi
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.RE
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.LP
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\fIThe following sections are informative.\fP
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.SH APPLICATION USAGE
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.LP
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None.
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.SH RATIONALE
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.LP
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None.
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.SH FUTURE DIRECTIONS
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.LP
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None.
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.SH SEE ALSO
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.LP
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2007-09-20 06:36:16 +00:00
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\fI<sys/types.h>\fP, the System Interfaces volume of
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2004-11-03 13:51:07 +00:00
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IEEE\ Std\ 1003.1-2001, \fIfstatvfs\fP(), \fIstatvfs\fP()
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.SH COPYRIGHT
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Portions of this text are reprinted and reproduced in electronic form
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from IEEE Std 1003.1, 2003 Edition, Standard for Information Technology
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-- Portable Operating System Interface (POSIX), The Open Group Base
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Specifications Issue 6, Copyright (C) 2001-2003 by the Institute of
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Electrical and Electronics Engineers, Inc and The Open Group. In the
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event of any discrepancy between this version and the original IEEE and
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The Open Group Standard, the original IEEE and The Open Group Standard
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is the referee document. The original Standard can be obtained online at
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http://www.opengroup.org/unix/online.html .
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