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This framework builds the 'minigzip' sample program supplied with

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libz.  It is a non-GPL-polluted minimal implementation of the 'gzip'
command, yielding a 12k executable (vs ~100k for gzip).
This commit is contained in:
Mike Smith 1997-12-13 09:57:48 +00:00
parent 749f6a2934
commit 85e55f7ab8
2 changed files with 74 additions and 0 deletions
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usr.bin/minigzip/Makefile Normal file
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# $Id$
PROG= minigzip
LDADD+= -lz
DPADD+= ${LIBZ}
.PATH: ../../lib/libz
.include <bsd.prog.mk>

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usr.bin/minigzip/minigzip.1 Normal file
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.\" Copyright (c) 1997
.\" Michael Smith
.\"
.\" 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.
.\"
.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR 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.
.\"
.\" $Id$
.\"
.Dd December 13, 1997
.Dt MINIGZIP 1
.Os
.Sh NAME
.Nm minigzip
.Nd minimal implementation of the 'gzip' compression tool
.Sh SYNOPSIS
.Nm minigzip
.Op Fl d
.Op Ar file ...
.Sh DESCRIPTION
.Nm
is a minimal implementation of the gzip utility. It supports
compression and decompression of individual files, as well as
streaming compression and decompression via standard input and
output.
.Pp
The default operation is compression, decompression can be
selected by supplying the
.Fl d
flag on the commandline.
.Pp
If any
.Ar file
arguments are supplied, the operation is performed on each file
separately. Compression replaces the original file with one having a
.Pa .gz
suffix. Decompression will remove a
.Pa .gz
suffix if one is present.
.Pp
If no
.Ar file
arguments are supplied,
.Nm
reads from standard input and writes the results of the operation
to standard output.
.Sh AUTHORS
.Nm
was written by Jean-loup Gailly.