Import NetBSD df(1)
Change-Id: I7a99e335da666a15b43b9daeb59dbfee516f0118
This commit is contained in:
David van Moolenbroek
Lionel Sambuc
parent
430c2113c7
commit
ac65742ae4
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@ -1,7 +1,7 @@
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# $NetBSD: Makefile,v 1.22 2007/12/31 15:31:24 ad Exp $
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# @(#)Makefile 8.1 (Berkeley) 5/31/93
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SUBDIR= cat date echo ed expr kill ksh ln ls \
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SUBDIR= cat date df echo ed expr kill ksh ln ls \
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mkdir pax pwd rm rmdir sync test
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.include <bsd.subdir.mk>
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@ -0,0 +1,11 @@
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# $NetBSD: Makefile,v 1.19 2011/08/28 08:20:58 christos Exp $
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# @(#)Makefile 8.3 (Berkeley) 5/8/95
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.include <bsd.own.mk>
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PROG= df
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LDADD+=-lutil
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DPADD+=${LIBUTIL}
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.include <bsd.prog.mk>
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@ -0,0 +1,206 @@
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.\" $NetBSD: df.1,v 1.44 2010/04/05 21:17:28 joerg Exp $
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.\"
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.\" Copyright (c) 1989, 1990, 1993
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.\" The Regents of the University of California. All rights reserved.
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.\"
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.\" Redistribution and use in source and binary forms, with or without
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.\" modification, are permitted provided that the following conditions
|
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.\" are met:
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.\" 1. Redistributions of source code must retain the above copyright
|
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.\" notice, this list of conditions and the following disclaimer.
|
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.\" 2. Redistributions in binary form must reproduce the above copyright
|
||||
.\" notice, this list of conditions and the following disclaimer in the
|
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.\" documentation and/or other materials provided with the distribution.
|
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.\" 3. Neither the name of the University nor the names of its contributors
|
||||
.\" may be used to endorse or promote products derived from this software
|
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.\" without specific prior written permission.
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.\"
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.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
|
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.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
||||
.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
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.\" 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
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.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
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.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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.\" OUT 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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.\" @(#)df.1 8.2 (Berkeley) 1/13/92
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.\"
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.Dd March 4, 2008
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.Dt DF 1
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.Os
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.Sh NAME
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.Nm df
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.Nd display free disk space
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.Sh SYNOPSIS
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.Nm
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.Op Fl agklmn
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.Op Fl G | Fl i | Fl P
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.Op Fl t Ar type
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.Op Ar file | Ar file_system ...
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.Sh DESCRIPTION
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.Nm
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displays statistics about the amount of free disk space on the specified
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.Ar file_system
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or on the file system of which
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.Ar file
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is a part.
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By default, all sizes are reported in 512-byte block counts.
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If neither a file or a
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.Ar file_system
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operand is specified,
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statistics for all mounted file systems are displayed
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(subject to the
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.Fl l
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and
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.Fl t
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options below).
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.Pp
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Note that the printed count of available blocks takes
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.Va minfree
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into account, and thus will be negative when the number of free blocks
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on the filesystem is less than
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.Va minfree .
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.Pp
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The following options are available:
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.Bl -tag -width Ds
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.It Fl a
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Show all mount points,
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including those that were mounted with the
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.Dv MNT_IGNORE
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flag.
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.It Fl G
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Display all the fields of the structure(s) returned by
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.Xr statvfs 2 .
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This option cannot be used with the
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.Fl i
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or
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.Fl P
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options, and it is modelled after the Solaris
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.Fl g
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option.
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This option will override the
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.Fl g ,
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.Fl h ,
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.Fl k ,
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and
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.Fl m
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options, as well as any setting of
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.Ev BLOCKSIZE .
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.It Fl g
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The
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.Fl g
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option causes the numbers to be reported in gigabytes (1024*1024*1024
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bytes).
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.It Fl h
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"Human-readable" output.
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Use unit suffixes: Byte, Kilobyte, Megabyte,
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Gigabyte, Terabyte, Petabyte, Exabyte in order to reduce the number of
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digits to four or less.
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.It Fl i
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Include statistics on the number of free inodes.
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.It Fl k
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By default, all sizes are reported in 512-byte block counts.
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The
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.Fl k
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option causes the numbers to be reported in kilobytes (1024 bytes).
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.It Fl l
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Display statistics only about mounted file systems with the
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.Dv MNT_LOCAL
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flag set.
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If a non-local file system is given as an argument, a
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warning is issued and no information is given on that file system.
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.It Fl m
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The
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.Fl m
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option causes the numbers to be reported in megabytes (1024*1024 bytes).
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.It Fl n
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Print out the previously obtained statistics from the file systems.
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This option should be used if it is possible that one or more
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file systems are in a state such that they will not be able to provide
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statistics without a long delay.
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When this option is specified,
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.Nm
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will not request new statistics from the file systems, but will respond
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with the possibly stale statistics that were previously obtained.
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.It Fl P
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Produce output in the following portable format:
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.Pp
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If both the
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.Fl P
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and
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.Fl k
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option are specified, the output will be preceded by the following header
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line, formatted to match the data following it:
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.Bd -literal
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"Filesystem 1024-blocks Used Available Capacity Mounted on\en"
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.Ed
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.Pp
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If the
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.Fl P
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option is specified without the
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.Fl k
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options, the output will be preceded by the following header line,
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formatted to match the data following it:
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.Bd -literal
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"Filesystem \*[Lt]blksize\*[Gt]-blocks Used Available Capacity Mounted on\en"
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.Ed
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.Pp
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The header line is followed by data formatted as follows:
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.Bd -literal
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"%s %d %d %d %d%% %s\en", \*[Lt]file system name\*[Gt], \*[Lt]total space\*[Gt],
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\*[Lt]space used\*[Gt], \*[Lt]space free\*[Gt], \*[Lt]percentage used\*[Gt],
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\*[Lt]file system root\*[Gt]
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.Ed
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.Pp
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Note that the
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.Fl i
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option may not be specified with
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.Fl P .
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.It Fl t Ar type
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Is used to indicate the actions should only be taken on
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filesystems of the specified type.
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More than one type may be specified in a comma-separated list.
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The list of filesystem types can be prefixed with
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.Dq no
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to specify the filesystem types for which action should
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.Em not
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be taken.
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If a file system is given on the command line that is not of
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the specified type, a warning is issued and no information is given on
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that file system.
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.El
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.Sh ENVIRONMENT
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.Bl -tag -width BLOCKSIZE
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.It Ev BLOCKSIZE
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If the environment variable
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.Ev BLOCKSIZE
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is set, and the
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.Fl g ,
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.Fl h ,
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.Fl k
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and
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.Fl m
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options are not specified, the block counts will be displayed in units of that
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size block.
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.El
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.Sh SEE ALSO
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.Xr quota 1 ,
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.Xr fstatvfs 2 ,
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.Xr getvfsstat 2 ,
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.Xr statvfs 2 ,
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.Xr getbsize 3 ,
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.Xr getmntinfo 3 ,
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.Xr fs 5 ,
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.Xr fstab 5 ,
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.Xr mount 8 ,
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.Xr quot 8 ,
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.Xr tunefs 8
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.Sh HISTORY
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A
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.Nm
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utility appeared in
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.At v6 .
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@ -0,0 +1,520 @@
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/* $NetBSD: df.c,v 1.90 2012/01/07 18:45:13 christos Exp $ */
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/*
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* Copyright (c) 1980, 1990, 1993, 1994
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* The Regents of the University of California. All rights reserved.
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* (c) UNIX System Laboratories, Inc.
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* All or some portions of this file are derived from material licensed
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* to the University of California by American Telephone and Telegraph
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* Co. or Unix System Laboratories, Inc. and are reproduced herein with
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* the permission of UNIX System Laboratories, Inc.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 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. 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.
|
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
|
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* 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
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
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* OUT 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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#include <sys/cdefs.h>
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#ifndef lint
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__COPYRIGHT(
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"@(#) Copyright (c) 1980, 1990, 1993, 1994\
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The Regents of the University of California. All rights reserved.");
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#endif /* not lint */
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#ifndef lint
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#if 0
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static char sccsid[] = "@(#)df.c 8.7 (Berkeley) 4/2/94";
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#else
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__RCSID("$NetBSD: df.c,v 1.90 2012/01/07 18:45:13 christos Exp $");
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#endif
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#endif /* not lint */
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#include <sys/param.h>
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#include <sys/stat.h>
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#include <sys/mount.h>
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#include <assert.h>
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#include <err.h>
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#include <errno.h>
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#include <fcntl.h>
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#include <locale.h>
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#include <util.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <unistd.h>
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#include <util.h>
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static char *getmntpt(const char *);
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static void prtstat(struct statvfs *, int);
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static int selected(const char *, size_t);
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static void maketypelist(char *);
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static size_t regetmntinfo(struct statvfs **, size_t);
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__dead static void usage(void);
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static void prthumanval(int64_t, const char *);
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static void prthuman(struct statvfs *, int64_t, int64_t);
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static int aflag, gflag, hflag, iflag, lflag, nflag, Pflag;
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static long usize;
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static char **typelist;
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int
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main(int argc, char *argv[])
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{
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struct stat stbuf;
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struct statvfs *mntbuf;
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long mntsize;
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int ch, i, maxwidth, width;
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char *mntpt;
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setprogname(argv[0]);
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(void)setlocale(LC_ALL, "");
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while ((ch = getopt(argc, argv, "aGghiklmnPt:")) != -1)
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switch (ch) {
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case 'a':
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aflag = 1;
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break;
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case 'g':
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hflag = 0;
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usize = 1024 * 1024 * 1024;
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break;
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case 'G':
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gflag = 1;
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break;
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case 'h':
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hflag = 1;
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usize = 0;
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break;
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case 'i':
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iflag = 1;
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break;
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case 'k':
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hflag = 0;
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usize = 1024;
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break;
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case 'l':
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lflag = 1;
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break;
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case 'm':
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hflag = 0;
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usize = 1024 * 1024;
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break;
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case 'n':
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nflag = 1;
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break;
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case 'P':
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Pflag = 1;
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break;
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case 't':
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if (typelist != NULL)
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errx(EXIT_FAILURE,
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"only one -t option may be specified.");
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maketypelist(optarg);
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break;
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case '?':
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default:
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usage();
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}
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if (gflag && (Pflag || iflag))
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errx(EXIT_FAILURE,
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"only one of -G and -P or -i may be specified");
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if (Pflag && iflag)
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errx(EXIT_FAILURE,
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"only one of -P and -i may be specified");
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#if 0
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/*
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* The block size cannot be checked until after getbsize() is called.
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*/
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if (Pflag && (hflag || (usize != 1024 && usize != 512)))
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errx(EXIT_FAILURE,
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"non-standard block size incompatible with -P");
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#endif
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argc -= optind;
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argv += optind;
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mntsize = getmntinfo(&mntbuf, MNT_NOWAIT);
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if (mntsize == 0)
|
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err(EXIT_FAILURE,
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"retrieving information on mounted file systems");
|
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|
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if (*argv == NULL) {
|
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mntsize = regetmntinfo(&mntbuf, mntsize);
|
||||
} else {
|
||||
if ((mntbuf = malloc(argc * sizeof(*mntbuf))) == NULL)
|
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err(EXIT_FAILURE, "can't allocate statvfs array");
|
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mntsize = 0;
|
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for (/*EMPTY*/; *argv != NULL; argv++) {
|
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if (stat(*argv, &stbuf) < 0) {
|
||||
if ((mntpt = getmntpt(*argv)) == 0) {
|
||||
warn("%s", *argv);
|
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continue;
|
||||
}
|
||||
} else if (S_ISBLK(stbuf.st_mode)) {
|
||||
if ((mntpt = getmntpt(*argv)) == 0)
|
||||
mntpt = *argv;
|
||||
} else
|
||||
mntpt = *argv;
|
||||
/*
|
||||
* Statfs does not take a `wait' flag, so we cannot
|
||||
* implement nflag here.
|
||||
*/
|
||||
if (!statvfs(mntpt, &mntbuf[mntsize]))
|
||||
if (lflag &&
|
||||
(mntbuf[mntsize].f_flag & MNT_LOCAL) == 0)
|
||||
warnx("Warning: %s is not a local %s",
|
||||
*argv, "file system");
|
||||
else if
|
||||
(!selected(mntbuf[mntsize].f_fstypename,
|
||||
sizeof(mntbuf[mntsize].f_fstypename)))
|
||||
warnx("Warning: %s mounted as a %s %s",
|
||||
*argv,
|
||||
mntbuf[mntsize].f_fstypename,
|
||||
"file system");
|
||||
else
|
||||
++mntsize;
|
||||
else
|
||||
warn("%s", *argv);
|
||||
}
|
||||
}
|
||||
|
||||
maxwidth = 0;
|
||||
for (i = 0; i < mntsize; i++) {
|
||||
width = (int)strlen(mntbuf[i].f_mntfromname);
|
||||
if (width > maxwidth)
|
||||
maxwidth = width;
|
||||
}
|
||||
for (i = 0; i < mntsize; i++)
|
||||
prtstat(&mntbuf[i], maxwidth);
|
||||
return 0;
|
||||
}
|
||||
|
||||
static char *
|
||||
getmntpt(const char *name)
|
||||
{
|
||||
size_t mntsize, i;
|
||||
struct statvfs *mntbuf;
|
||||
|
||||
mntsize = getmntinfo(&mntbuf, MNT_NOWAIT);
|
||||
if (mntsize == 0)
|
||||
err(EXIT_FAILURE, "Can't get mount information");
|
||||
for (i = 0; i < mntsize; i++) {
|
||||
if (!strcmp(mntbuf[i].f_mntfromname, name))
|
||||
return mntbuf[i].f_mntonname;
|
||||
}
|
||||
return 0;
|
||||
}
|
||||
|
||||
static enum { IN_LIST, NOT_IN_LIST } which;
|
||||
|
||||
static int
|
||||
selected(const char *type, size_t len)
|
||||
{
|
||||
char **av;
|
||||
|
||||
/* If no type specified, it's always selected. */
|
||||
if (typelist == NULL)
|
||||
return 1;
|
||||
for (av = typelist; *av != NULL; ++av)
|
||||
if (!strncmp(type, *av, len))
|
||||
return which == IN_LIST ? 1 : 0;
|
||||
return which == IN_LIST ? 0 : 1;
|
||||
}
|
||||
|
||||
static void
|
||||
maketypelist(char *fslist)
|
||||
{
|
||||
size_t i;
|
||||
char *nextcp, **av;
|
||||
|
||||
if ((fslist == NULL) || (fslist[0] == '\0'))
|
||||
errx(EXIT_FAILURE, "empty type list");
|
||||
|
||||
/*
|
||||
* XXX
|
||||
* Note: the syntax is "noxxx,yyy" for no xxx's and
|
||||
* no yyy's, not the more intuitive "noyyy,noyyy".
|
||||
*/
|
||||
if (fslist[0] == 'n' && fslist[1] == 'o') {
|
||||
fslist += 2;
|
||||
which = NOT_IN_LIST;
|
||||
} else
|
||||
which = IN_LIST;
|
||||
|
||||
/* Count the number of types. */
|
||||
for (i = 1, nextcp = fslist;
|
||||
(nextcp = strchr(nextcp, ',')) != NULL; i++)
|
||||
++nextcp;
|
||||
|
||||
/* Build an array of that many types. */
|
||||
if ((av = typelist = malloc((i + 1) * sizeof(*av))) == NULL)
|
||||
err(EXIT_FAILURE, "can't allocate type array");
|
||||
av[0] = fslist;
|
||||
for (i = 1, nextcp = fslist;
|
||||
(nextcp = strchr(nextcp, ',')) != NULL; i++) {
|
||||
*nextcp = '\0';
|
||||
av[i] = ++nextcp;
|
||||
}
|
||||
/* Terminate the array. */
|
||||
av[i] = NULL;
|
||||
}
|
||||
|
||||
/*
|
||||
* Make a pass over the filesystem info in ``mntbuf'' filtering out
|
||||
* filesystem types not in ``fsmask'' and possibly re-stating to get
|
||||
* current (not cached) info. Returns the new count of valid statvfs bufs.
|
||||
*/
|
||||
static size_t
|
||||
regetmntinfo(struct statvfs **mntbufp, size_t mntsize)
|
||||
{
|
||||
size_t i, j;
|
||||
struct statvfs *mntbuf;
|
||||
|
||||
if (!lflag && typelist == NULL && aflag)
|
||||
return nflag ? mntsize : (size_t)getmntinfo(mntbufp, MNT_WAIT);
|
||||
|
||||
mntbuf = *mntbufp;
|
||||
j = 0;
|
||||
for (i = 0; i < mntsize; i++) {
|
||||
if (!aflag && (mntbuf[i].f_flag & MNT_IGNORE) != 0)
|
||||
continue;
|
||||
if (lflag && (mntbuf[i].f_flag & MNT_LOCAL) == 0)
|
||||
continue;
|
||||
if (!selected(mntbuf[i].f_fstypename,
|
||||
sizeof(mntbuf[i].f_fstypename)))
|
||||
continue;
|
||||
if (nflag)
|
||||
mntbuf[j] = mntbuf[i];
|
||||
else {
|
||||
struct statvfs layerbuf = mntbuf[i];
|
||||
(void)statvfs(mntbuf[i].f_mntonname, &mntbuf[j]);
|
||||
/*
|
||||
* If the FS name changed, then new data is for
|
||||
* a different layer and we don't want it.
|
||||
*/
|
||||
if (memcmp(layerbuf.f_mntfromname,
|
||||
mntbuf[j].f_mntfromname, MNAMELEN))
|
||||
mntbuf[j] = layerbuf;
|
||||
}
|
||||
j++;
|
||||
}
|
||||
return j;
|
||||
}
|
||||
|
||||
static void
|
||||
prthumanval(int64_t bytes, const char *pad)
|
||||
{
|
||||
char buf[6];
|
||||
|
||||
(void)humanize_number(buf, sizeof(buf) - (bytes < 0 ? 0 : 1),
|
||||
bytes, "", HN_AUTOSCALE,
|
||||
HN_B | HN_NOSPACE | HN_DECIMAL);
|
||||
|
||||
(void)printf("%s %6s", pad, buf);
|
||||
}
|
||||
|
||||
static void
|
||||
prthuman(struct statvfs *sfsp, int64_t used, int64_t bavail)
|
||||
{
|
||||
|
||||
prthumanval((int64_t)(sfsp->f_blocks * sfsp->f_frsize), " ");
|
||||
prthumanval((int64_t)(used * sfsp->f_frsize), " ");
|
||||
prthumanval((int64_t)(bavail * sfsp->f_frsize), " ");
|
||||
}
|
||||
|
||||
/*
|
||||
* Convert statvfs returned filesystem size into BLOCKSIZE units.
|
||||
* Attempts to avoid overflow for large filesystems.
|
||||
*/
|
||||
#define fsbtoblk(num, fsbs, bs) \
|
||||
(((fsbs) != 0 && (uint64_t)(fsbs) < (uint64_t)(bs)) ? \
|
||||
(int64_t)(num) / (int64_t)((bs) / (fsbs)) : \
|
||||
(int64_t)(num) * (int64_t)((fsbs) / (bs)))
|
||||
|
||||
/*
|
||||
* Print out status about a filesystem.
|
||||
*/
|
||||
static void
|
||||
prtstat(struct statvfs *sfsp, int maxwidth)
|
||||
{
|
||||
static long blocksize;
|
||||
static int headerlen, timesthrough;
|
||||
static const char *header;
|
||||
static const char full[] = "100";
|
||||
static const char empty[] = " 0";
|
||||
int64_t used, availblks, inodes;
|
||||
int64_t bavail;
|
||||
char pb[64];
|
||||
|
||||
if (gflag) {
|
||||
/*
|
||||
* From SunOS-5.6:
|
||||
*
|
||||
* /var (/dev/dsk/c0t0d0s3 ): 8192 block size 1024 frag size
|
||||
* 984242 total blocks 860692 free blocks 859708 available 249984 total files
|
||||
* 248691 free files 8388611 filesys id
|
||||
* ufs fstype 0x00000004 flag 255 filename length
|
||||
*
|
||||
*/
|
||||
(void)printf("%10s (%-12s): %7ld block size %12ld frag size\n",
|
||||
sfsp->f_mntonname, sfsp->f_mntfromname,
|
||||
sfsp->f_iosize, /* On UFS/FFS systems this is
|
||||
* also called the "optimal
|
||||
* transfer block size" but it
|
||||
* is of course the file
|
||||
* system's block size too.
|
||||
*/
|
||||
sfsp->f_bsize); /* not so surprisingly the
|
||||
* "fundamental file system
|
||||
* block size" is the frag
|
||||
* size.
|
||||
*/
|
||||
(void)printf("%10" PRId64 " total blocks %10" PRId64
|
||||
" free blocks %10" PRId64 " available\n",
|
||||
(uint64_t)sfsp->f_blocks, (uint64_t)sfsp->f_bfree,
|
||||
(uint64_t)sfsp->f_bavail);
|
||||
(void)printf("%10" PRId64 " total files %10" PRId64
|
||||
" free files %12lx filesys id\n",
|
||||
(uint64_t)sfsp->f_ffree, (uint64_t)sfsp->f_files,
|
||||
sfsp->f_fsid);
|
||||
(void)printf("%10s fstype %#15lx flag %17ld filename "
|
||||
"length\n", sfsp->f_fstypename, sfsp->f_flag,
|
||||
sfsp->f_namemax);
|
||||
(void)printf("%10lu owner %17" PRId64 " syncwrites %12" PRId64
|
||||
" asyncwrites\n\n", (unsigned long)sfsp->f_owner,
|
||||
sfsp->f_syncwrites, sfsp->f_asyncwrites);
|
||||
|
||||
/*
|
||||
* a concession by the structured programming police to the
|
||||
* indentation police....
|
||||
*/
|
||||
return;
|
||||
}
|
||||
if (maxwidth < 12)
|
||||
maxwidth = 12;
|
||||
if (++timesthrough == 1) {
|
||||
switch (blocksize = usize) {
|
||||
case 1024:
|
||||
header = Pflag ? "1024-blocks" : "1K-blocks";
|
||||
headerlen = (int)strlen(header);
|
||||
break;
|
||||
case 1024 * 1024:
|
||||
header = "1M-blocks";
|
||||
headerlen = (int)strlen(header);
|
||||
break;
|
||||
case 1024 * 1024 * 1024:
|
||||
header = "1G-blocks";
|
||||
headerlen = (int)strlen(header);
|
||||
break;
|
||||
default:
|
||||
if (hflag) {
|
||||
header = "Size";
|
||||
headerlen = (int)strlen(header);
|
||||
} else
|
||||
header = getbsize(&headerlen, &blocksize);
|
||||
break;
|
||||
}
|
||||
if (Pflag) {
|
||||
/*
|
||||
* either:
|
||||
* "Filesystem 1024-blocks Used Available Capacity Mounted on\n"
|
||||
* or:
|
||||
* "Filesystem 512-blocks Used Available Capacity Mounted on\n"
|
||||
*/
|
||||
if (blocksize != 1024 && blocksize != 512)
|
||||
errx(EXIT_FAILURE,
|
||||
"non-standard block size incompatible with -P");
|
||||
(void)printf("Filesystem %s Used Available Capacity "
|
||||
"Mounted on\n", header);
|
||||
} else {
|
||||
(void)printf("%-*.*s %s Used Avail %%Cap",
|
||||
maxwidth - (headerlen - 10),
|
||||
maxwidth - (headerlen - 10),
|
||||
"Filesystem", header);
|
||||
if (iflag)
|
||||
(void)printf(" iUsed iAvail %%iCap");
|
||||
(void)printf(" Mounted on\n");
|
||||
}
|
||||
}
|
||||
used = sfsp->f_blocks - sfsp->f_bfree;
|
||||
bavail = sfsp->f_bfree - sfsp->f_bresvd;
|
||||
availblks = bavail + used;
|
||||
if (Pflag) {
|
||||
assert(hflag == 0);
|
||||
assert(blocksize > 0);
|
||||
/*
|
||||
* "%s %d %d %d %s %s\n", <file system name>, <total space>,
|
||||
* <space used>, <space free>, <percentage used>,
|
||||
* <file system root>
|
||||
*/
|
||||
(void)printf("%s %" PRId64 " %" PRId64 " %" PRId64 " %s%% %s\n",
|
||||
sfsp->f_mntfromname,
|
||||
fsbtoblk(sfsp->f_blocks, sfsp->f_frsize, blocksize),
|
||||
fsbtoblk(used, sfsp->f_frsize, blocksize),
|
||||
fsbtoblk(bavail, sfsp->f_frsize, blocksize),
|
||||
availblks == 0 ? full : strspct(pb, sizeof(pb), used,
|
||||
availblks, 0), sfsp->f_mntonname);
|
||||
/*
|
||||
* another concession by the structured programming police to
|
||||
* the indentation police....
|
||||
*
|
||||
* Note iflag cannot be set when Pflag is set.
|
||||
*/
|
||||
return;
|
||||
}
|
||||
|
||||
(void)printf("%-*.*s ", maxwidth, maxwidth, sfsp->f_mntfromname);
|
||||
|
||||
if (hflag)
|
||||
prthuman(sfsp, used, bavail);
|
||||
else
|
||||
(void)printf("%10" PRId64 " %10" PRId64 " %10" PRId64,
|
||||
fsbtoblk(sfsp->f_blocks, sfsp->f_frsize, blocksize),
|
||||
fsbtoblk(used, sfsp->f_frsize, blocksize),
|
||||
fsbtoblk(bavail, sfsp->f_frsize, blocksize));
|
||||
(void)printf(" %3s%%",
|
||||
availblks == 0 ? full :
|
||||
strspct(pb, sizeof(pb), used, availblks, 0));
|
||||
if (iflag) {
|
||||
inodes = sfsp->f_files;
|
||||
used = inodes - sfsp->f_ffree;
|
||||
(void)printf(" %8jd %8jd %3s%%",
|
||||
(intmax_t)used, (intmax_t)sfsp->f_ffree,
|
||||
inodes == 0 ? (used == 0 ? empty : full) :
|
||||
strspct(pb, sizeof(pb), used, inodes, 0));
|
||||
}
|
||||
(void)printf(" %s\n", sfsp->f_mntonname);
|
||||
}
|
||||
|
||||
static void
|
||||
usage(void)
|
||||
{
|
||||
|
||||
(void)fprintf(stderr,
|
||||
"Usage: %s [-aGgln] [-hkm|-ihkm|-Pk] [-t type] [file | "
|
||||
"file_system ...]\n",
|
||||
getprogname());
|
||||
exit(1);
|
||||
/* NOTREACHED */
|
||||
}
|
||||
|
|
@ -6,7 +6,7 @@ SUBDIR= add_route arp ash at backup btrace \
|
|||
cawf cd cdprobe cpp \
|
||||
chmod chown ci cleantmp cmp co \
|
||||
compress cp crc cron crontab \
|
||||
dd decomp16 DESCRIBE devmand devsize df dhcpd \
|
||||
dd decomp16 DESCRIBE devmand devsize dhcpd \
|
||||
dhrystone diff diskctl dumpcore \
|
||||
eject factor fbdctl \
|
||||
find fix format fortune fsck.mfs \
|
||||
|
|
|
|||
|
|
@ -1,4 +0,0 @@
|
|||
PROG= df
|
||||
MAN=
|
||||
|
||||
.include <bsd.prog.mk>
|
||||
238
commands/df/df.c
238
commands/df/df.c
|
|
@ -1,238 +0,0 @@
|
|||
/* df - disk free block printout Author: Andy Tanenbaum
|
||||
*
|
||||
* 91/04/30 Kees J. Bot (kjb@cs.vu.nl)
|
||||
* Map filename arguments to the devices they live on.
|
||||
* Changed output to show percentages.
|
||||
*
|
||||
* 92/12/12 Kees J. Bot
|
||||
* Posixized. (Almost, the normal output is in kilobytes, it should
|
||||
* be 512-byte units. 'df -P' and 'df -kP' are as it should be.)
|
||||
*
|
||||
*/
|
||||
|
||||
#include <stdio.h>
|
||||
#include <sys/types.h>
|
||||
#include <sys/statvfs.h>
|
||||
#include <sys/stat.h>
|
||||
#include <errno.h>
|
||||
#include <unistd.h>
|
||||
#include <stdlib.h>
|
||||
#include <string.h>
|
||||
#include <minix/minlib.h>
|
||||
|
||||
struct mtab { /* List of mounted devices from /etc/mtab. */
|
||||
struct mtab *next;
|
||||
dev_t device;
|
||||
char *devname;
|
||||
char *mountpoint;
|
||||
} *mtab= NULL;
|
||||
|
||||
struct mtab *searchtab(char *name);
|
||||
static void readmtab(const char *type);
|
||||
int df(const struct mtab *mt);
|
||||
|
||||
int iflag= 0; /* Focus on inodes instead of blocks. */
|
||||
int Pflag= 0; /* Posix standard output. */
|
||||
int kflag= 0; /* Output in kilobytes instead of 512 byte units for -P. */
|
||||
int istty; /* isatty(1) */
|
||||
|
||||
void usage(void)
|
||||
{
|
||||
fprintf(stderr, "Usage: df [-ikP] [-t type] [device]...\n");
|
||||
exit(1);
|
||||
}
|
||||
|
||||
int unitsize;
|
||||
|
||||
int main(int argc, char *argv[])
|
||||
{
|
||||
int i;
|
||||
struct mtab *mt;
|
||||
char *type= "dev";
|
||||
int ex= 0;
|
||||
|
||||
while (argc > 1 && argv[1][0] == '-') {
|
||||
char *opt= argv[1]+1;
|
||||
|
||||
while (*opt != 0) {
|
||||
switch (*opt++) {
|
||||
case 'i': iflag= 1; break;
|
||||
case 'k': kflag= 1; break;
|
||||
case 'P': Pflag= 1; break;
|
||||
case 't':
|
||||
if (argc < 3) usage();
|
||||
type= argv[2];
|
||||
argv++;
|
||||
argc--;
|
||||
break;
|
||||
default:
|
||||
usage();
|
||||
}
|
||||
}
|
||||
argc--;
|
||||
argv++;
|
||||
}
|
||||
|
||||
istty= isatty(1);
|
||||
|
||||
readmtab(type);
|
||||
|
||||
if(!Pflag || (Pflag && kflag)) unitsize = 1024;
|
||||
else unitsize = 512;
|
||||
|
||||
if (Pflag) {
|
||||
if (!iflag)
|
||||
printf("\
|
||||
Filesystem %4d-blocks Used Available Capacity Mounted on\n",
|
||||
unitsize);
|
||||
else
|
||||
printf("\
|
||||
Filesystem Inodes IUsed IFree %%IUsed Mounted on\n"
|
||||
);
|
||||
} else {
|
||||
printf("%s\n", !iflag ? "\
|
||||
Filesystem Size (kB) Free Used % Files% Mounted on" : "\
|
||||
Filesystem Files Free Used % BUsed% Mounted on"
|
||||
);
|
||||
}
|
||||
|
||||
if (argc == 1) {
|
||||
for (mt= mtab; mt != NULL; mt= mt->next) ex |= df(mt);
|
||||
} else {
|
||||
for (i = 1; i < argc; i++) ex |= df(searchtab(argv[i]));
|
||||
}
|
||||
exit(ex);
|
||||
}
|
||||
|
||||
static void readmtab(const char *type)
|
||||
/* Turn the mounted file table into a list. */
|
||||
{
|
||||
struct mtab **amt= &mtab, *new;
|
||||
struct stat st;
|
||||
char devname[PATH_MAX], mountpoint[PATH_MAX], version[MNTNAMELEN],
|
||||
rw_flag[MNTFLAGLEN];
|
||||
|
||||
if (load_mtab("df") < 0) exit(1);
|
||||
|
||||
while (get_mtab_entry(devname, mountpoint, version, rw_flag),
|
||||
devname[0] != 0) {
|
||||
if (strcmp(type, "dev") != 0 && strcmp(type, version) != 0) continue;
|
||||
|
||||
/* Make new list cell. */
|
||||
if ((new= (struct mtab *) malloc(sizeof(*new))) == NULL
|
||||
|| (new->devname= (char *) malloc(strlen(devname) + 1)) == NULL
|
||||
|| (new->mountpoint= (char *) malloc(strlen(mountpoint) + 1)) == NULL
|
||||
) break;
|
||||
|
||||
if (strcmp(devname, "none") != 0 && stat(devname, &st) == 0 &&
|
||||
S_ISBLK(st.st_mode)) {
|
||||
new->device= st.st_rdev;
|
||||
} else if (stat(mountpoint, &st) == 0) {
|
||||
new->device= st.st_dev;
|
||||
}
|
||||
strcpy(new->devname, devname);
|
||||
strcpy(new->mountpoint, mountpoint);
|
||||
|
||||
*amt= new; /* Add the cell to the end. */
|
||||
amt= &new->next;
|
||||
*amt= NULL;
|
||||
}
|
||||
}
|
||||
|
||||
struct mtab *searchtab(char *name)
|
||||
/* See what we can do with a user supplied name, there are three possibilities:
|
||||
* 1. It's a device and it is in the mtab: Return mtab entry.
|
||||
* 2. It's a file and lives on a device in the mtab: Return mtab entry.
|
||||
* 3. It's anything else: Return something df() will choke on.
|
||||
*/
|
||||
{
|
||||
static struct mtab unknown;
|
||||
struct mtab *mt;
|
||||
struct stat st;
|
||||
|
||||
unknown.devname= name;
|
||||
unknown.mountpoint= "";
|
||||
|
||||
if (stat(name, &st) < 0) return &unknown; /* Case 3. */
|
||||
|
||||
unknown.device= S_ISBLK(st.st_mode) ? st.st_rdev : st.st_dev;
|
||||
|
||||
for (mt= mtab; mt != NULL; mt= mt->next) {
|
||||
if (unknown.device == mt->device)
|
||||
return mt; /* Case 1 & 2. */
|
||||
}
|
||||
|
||||
return &unknown; /* Case 3. */
|
||||
}
|
||||
|
||||
/* (num / tot) in percentages rounded up. */
|
||||
#define percent(num, tot) \
|
||||
((tot > 0) ? ((int) ((100ULL * (num) + ((tot) - 1)) / (tot))) : 0)
|
||||
|
||||
int df(const struct mtab *mt)
|
||||
{
|
||||
fsblkcnt_t totblocks, busyblocks;
|
||||
fsfilcnt_t totinodes, busyinodes;
|
||||
struct statvfs sv;
|
||||
int n;
|
||||
|
||||
if (statvfs(mt->mountpoint, &sv) < 0) {
|
||||
fprintf(stderr, "df: %s: %s\n", mt->devname, strerror(errno));
|
||||
return(1);
|
||||
}
|
||||
|
||||
/* Print results. */
|
||||
printf("%s", mt->devname);
|
||||
n= strlen(mt->devname);
|
||||
if (n > 15 && istty) { putchar('\n'); n= 0; }
|
||||
while (n < 15) { putchar(' '); n++; }
|
||||
|
||||
totblocks = sv.f_blocks;
|
||||
busyblocks = sv.f_blocks - sv.f_bfree;
|
||||
|
||||
busyblocks = busyblocks * (sv.f_bsize/512) / (unitsize/512);
|
||||
totblocks = totblocks * (sv.f_bsize/512) / (unitsize/512);
|
||||
|
||||
totinodes = sv.f_files;
|
||||
busyinodes = sv.f_files - sv.f_ffree;
|
||||
|
||||
if (!Pflag && !iflag) {
|
||||
printf(" %9ld %9ld %9ld %3d%% %3d%% %s\n",
|
||||
totblocks, /* Blocks */
|
||||
totblocks - busyblocks, /* free */
|
||||
busyblocks, /* used */
|
||||
percent(busyblocks, totblocks), /* % */
|
||||
percent(busyinodes, totinodes), /* FUsed% */
|
||||
mt->mountpoint /* Mounted on */
|
||||
);
|
||||
}
|
||||
if (!Pflag && iflag) {
|
||||
printf(" %9ld %9ld %9ld %3d%% %3d%% %s\n",
|
||||
totinodes, /* Files */
|
||||
totinodes - busyinodes, /* free */
|
||||
busyinodes, /* used */
|
||||
percent(busyinodes, totinodes), /* % */
|
||||
percent(busyblocks, totblocks), /* BUsed% */
|
||||
mt->mountpoint /* Mounted on */
|
||||
);
|
||||
}
|
||||
if (Pflag && !iflag) {
|
||||
printf(" %9ld %9ld %9ld %4d%% %s\n",
|
||||
totblocks, /* Blocks */
|
||||
busyblocks, /* Used */
|
||||
totblocks - busyblocks, /* Available */
|
||||
percent(busyblocks, totblocks), /* Capacity */
|
||||
mt->mountpoint /* Mounted on */
|
||||
);
|
||||
}
|
||||
if (Pflag && iflag) {
|
||||
printf(" %9ld %9ld %9ld %4d%% %s\n",
|
||||
totinodes, /* Inodes */
|
||||
busyinodes, /* IUsed */
|
||||
totinodes - busyinodes, /* IAvail */
|
||||
percent(busyinodes, totinodes), /* Capacity */
|
||||
mt->mountpoint /* Mounted on */
|
||||
);
|
||||
}
|
||||
return(0);
|
||||
}
|
||||
|
|
@ -412,9 +412,9 @@ then
|
|||
|
||||
# Get sizes and space availability while the file systems are still
|
||||
# mounted. Otherwise we have to mount them again just for this.
|
||||
required_root_space=`df -k /dev/$root | awk '{print $4}' | tail -n 1`
|
||||
free_root_space=`df -k /dev/$root | awk '{print $3}' | tail -n 1`
|
||||
free_usr_space=`df -k /dev/$usr | awk '{print $3}' | tail -n 1`
|
||||
required_root_space=`df -kP /dev/$root | awk '{print $3}' | tail -n 1`
|
||||
free_root_space=`df -kP /dev/$root | awk '{print $4}' | tail -n 1`
|
||||
free_usr_space=`df -kP /dev/$usr | awk '{print $4}' | tail -n 1`
|
||||
|
||||
umount /mnt/usr && umount /mnt || exit
|
||||
|
||||
|
|
|
|||
|
|
@ -18,6 +18,7 @@
|
|||
./bin/cpio minix-sys
|
||||
./bin/date minix-sys
|
||||
./bin/dev2name minix-sys obsolete
|
||||
./bin/df minix-sys
|
||||
./bin/echo minix-sys
|
||||
./bin/ed minix-sys
|
||||
./bin/expr minix-sys
|
||||
|
|
@ -288,7 +289,7 @@
|
|||
./usr/bin/DESCRIBE minix-sys
|
||||
./usr/bin/devmand minix-sys
|
||||
./usr/bin/devsize minix-sys
|
||||
./usr/bin/df minix-sys
|
||||
./usr/bin/df minix-sys obsolete
|
||||
./usr/bin/dhcpd minix-sys
|
||||
./usr/bin/dhrystone minix-sys
|
||||
./usr/bin/diff minix-sys
|
||||
|
|
@ -4228,6 +4229,7 @@
|
|||
./usr/man/man3/strnvis.3 minix-sys
|
||||
./usr/man/man3/strnvisx.3 minix-sys
|
||||
./usr/man/man3/strpbrk.3 minix-sys
|
||||
./usr/man/man3/strpct.3 minix-sys
|
||||
./usr/man/man3/strptime.3 minix-sys
|
||||
./usr/man/man3/strrchr.3 minix-sys
|
||||
./usr/man/man3/strsep.3 minix-sys
|
||||
|
|
|
|||
|
|
@ -42,7 +42,7 @@ SRCS+= efun.c \
|
|||
passwd.c pw_scan.c pidfile.c pidlock.c pty.c \
|
||||
raise_default_signal.c \
|
||||
secure_path.c stat_flags.c \
|
||||
ttyaction.c \
|
||||
strpct.c ttyaction.c \
|
||||
|
||||
MAN= efun.3 \
|
||||
getmntopts.3 \
|
||||
|
|
@ -50,7 +50,7 @@ MAN= efun.3 \
|
|||
opendisk.3 openpty.3 pidfile.3 pidlock.3 \
|
||||
pw_getconf.3 pw_init.3 pw_lock.3 secure_path.3 \
|
||||
raise_default_signal.3 \
|
||||
snprintb.3 stat_flags.3 ttyaction.3 \
|
||||
snprintb.3 stat_flags.3 strpct.3 ttyaction.3 \
|
||||
util.3
|
||||
.endif
|
||||
|
||||
|
|
|
|||
|
|
@ -2,7 +2,7 @@ MAN= ash.1 at.1 \
|
|||
bsfilt.1 cawf.1 chgrp.1 \
|
||||
chmod.1 cmp.1 compress.1 \
|
||||
cp.1 crc.1 crontab.1 dd.1 \
|
||||
df.1 dhrystone.1 dosdir.1 dosread.1 doswrite.1 \
|
||||
dhrystone.1 dosdir.1 dosread.1 doswrite.1 \
|
||||
dumpcore.1 eject.1 \
|
||||
factor.1 \
|
||||
flexdoc.1 format.1 fortune.1 \
|
||||
|
|
|
|||
|
|
@ -1,75 +0,0 @@
|
|||
.TH DF 1
|
||||
.SH NAME
|
||||
df \- report on free disk space
|
||||
.SH SYNOPSIS
|
||||
\fBdf\fP [\fB\-ikP\fP] [\fB\-t\fP \fItype\fP] [\fIfile\fP ...]
|
||||
.SH DESCRIPTION
|
||||
.B Df
|
||||
lists the amount of free space on the currently mounted devices (no arguments),
|
||||
or the devices given as arguments. If the argument is not a device then the
|
||||
device it resides on is listed.
|
||||
.SH OPTIONS
|
||||
Without options,
|
||||
.B df
|
||||
will give a listing like this:
|
||||
.sp
|
||||
.nf
|
||||
.if t .ft C
|
||||
Filesystem 1k-Blocks free used % FUsed% Mounted on
|
||||
/dev/c0d0p1s0 1440 635 805 56% 26% /
|
||||
/dev/c0d0p1s1 32768 32390 378 2% 1% /tmp
|
||||
/dev/c0d0p1s2 784657 517809 266848 35% 29% /usr
|
||||
.if t .ft R
|
||||
.fi
|
||||
.PP
|
||||
The
|
||||
.B \-i
|
||||
option shifts the focus to the files:
|
||||
.sp
|
||||
.nf
|
||||
.if t .ft C
|
||||
Filesystem Files free used % BUsed% Mounted on
|
||||
/dev/c0d0p1s0 1024 759 265 26% 56% /
|
||||
/dev/c0d0p1s1 5472 5468 4 1% 2% /tmp
|
||||
/dev/c0d0p1s2 65535 46734 18801 29% 35% /usr
|
||||
.if t .ft R
|
||||
.fi
|
||||
.PP
|
||||
Option
|
||||
.B \-P
|
||||
makes
|
||||
.B df
|
||||
use \s-2POSIX\s+2 defined output in 512 byte units:
|
||||
.sp
|
||||
.nf
|
||||
.if t .ft C
|
||||
Filesystem 512-blocks Used Available Capacity Mounted on
|
||||
/dev/c0d0p1s0 2880 1628 1252 57% /
|
||||
/dev/c0d0p1s1 65536 756 64780 2% /tmp
|
||||
/dev/c0d0p1s2 1569314 533748 1035566 35% /usr
|
||||
.if t .ft R
|
||||
.fi
|
||||
.PP
|
||||
With
|
||||
.B \-k
|
||||
1024 byte units would be used.
|
||||
.PP
|
||||
The
|
||||
.B \-t
|
||||
option limits
|
||||
.BR df 's
|
||||
output to file systems of the given
|
||||
.IR type .
|
||||
.SH FILES
|
||||
.TP 15n
|
||||
.B /etc/mtab
|
||||
List of mounted file systems.
|
||||
.SH "SEE ALSO"
|
||||
.BR du (1),
|
||||
.BR fstab (5).
|
||||
.SH BUGS
|
||||
Default output should also be in 512 byte units says \s-2POSIX\s+2.
|
||||
.SH AUTHOR
|
||||
Kees J. Bot (kjb@cs.vu.nl)
|
||||
.\"
|
||||
.\" $PchId: df.1,v 1.5 1998/07/27 19:48:47 philip Exp $
|
||||
|
|
@ -8,6 +8,7 @@
|
|||
# netbsdpath: path in BSD source tree (starting from src/)
|
||||
2012/10/17 12:00:00,bin/cat
|
||||
2011/08/27 12:55:09,bin/date
|
||||
2013/08/19 12:00:00,bin/df
|
||||
2012/10/17 12:00:00,bin/echo
|
||||
2012/01/16 18:47:57,bin/ed
|
||||
2012/10/17 12:00:00,bin/expr
|
||||
|
|
|
|||
|
|
@ -298,7 +298,7 @@ mount $TMPDISKUSR $RELEASEMNTDIR/usr || exit
|
|||
echo " * Copying files from staging to image"
|
||||
##########################################################################
|
||||
synctree -f $RELEASEDIR $RELEASEMNTDIR > /dev/null || true
|
||||
expr `df -k $TMPDISKUSR | tail -1 | awk '{ print $4 }'` - $extrakb >$RELEASEMNTDIR/.usrkb
|
||||
expr `df -kP $TMPDISKUSR | tail -1 | awk '{ print $3 }'` - $extrakb >$RELEASEMNTDIR/.usrkb
|
||||
|
||||
echo " * Unmounting $TMPDISKUSR from $RELEASEMNTDIR/usr"
|
||||
umount $TMPDISKUSR || exit
|
||||
|
|
|
|||
Loading…
Reference in New Issue