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rpm2targz
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2005-10-18
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#!/bin/sh
# Copyright 1997, 1998 Patrick Volkerding, Moorhead, MN USA
# Copyright 2002 Slackware Linux, Inc., Concord, CA USA
# All rights reserved.
# $Header: /var/cvsroot/gentoo-x86/app-arch/rpm2targz/files/rpm2targz-9.0-secure_temp_handling.patch,v 1.1 2005/06/25 12:40:21 liquidx Exp $
#
# Redistribution and use of this script, with or without modification, is
# permitted provided that the following conditions are met:
#
# 1. Redistributions of this script must retain the above copyright
# notice, this list of conditions and the following disclaimer.
#
# THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 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.
#
# debug switch to allow to bypass use of rpm2cpio provided by the rpm package
USERPM2CPIO=true
[ "$TMPDIR" == "" ] && TMPDIR=/tmp
if [ ! -d "$TMPDIR" ]; then
echo "TMPDIR=$TMPDIR is not a dir" > /dev/stderr
exit 1
fi
WORKDIR=`mktemp -d $TMPDIR/$$XXXXXX`
if [ $? != 0 ]; then
echo "Failed to make tmp workdir for file i/o conversion" > /dev/stderr
exit 1
fi
if [ "$1" = "" ]; then
echo "$0: Converts RPM format to standard GNU tar + GNU zip format."
if [ -e /etc/slackware-version ]; then
echo " (view converted packages with \"less\", install and remove"
echo " with \"installpkg\", \"removepkg\", \"pkgtool\", or manually"
echo " with \"tar\")"
fi
echo
echo "Usage: $0 <file.rpm>"
if [ "`basename $0`" = "rpm2tgz" ]; then
echo " (Outputs \"file.tgz\")"
else
echo " (Outputs \"file.tar.gz\")"
fi
exit 1;
fi
for i in $* ; do
if [ ! "$1" = "$*" ]; then
echo "Processing file: $i"
fi
rm -rf ${WORKDIR}/* || exit 1 ; # clear the way, just in case of mischief
# Determine if this is a source or binary RPM.
# If we have getrpmtype, use that. Otherwise, try "file".
if type -p getrpmtype 1> /dev/null 2> /dev/null; then
if getrpmtype -n $i | grep source 1> /dev/null 2> /dev/null ; then
isSource=1
else
isSource=0
fi
else # use file. This works fine on Slackware, and is the default.
if file $i | grep RPM | grep " src " 1> /dev/null 2> /dev/null ; then
isSource=1
else
isSource=0
fi
fi
ofn=${WORKDIR}/`basename $i .rpm`.cpio
if $USERPM2CPIO && which rpm2cpio 1> /dev/null 2> /dev/null ; then
rpm2cpio $i > $ofn 2> /dev/null
if [ ! $? = 0 ]; then
echo "... rpm2cpio failed. (maybe $i is not an RPM?)"
( rm -rf "${WORKDIR}/*" )
continue
fi
else # less reliable than rpm2cpio...
# get offset of start of payload
PAYLOADOFFSET=`rpmoffset < $i`
#identify compression
PAYLOADHEAD=`dd ibs=${PAYLOADOFFSET} skip=1 if=$i 2> /dev/null | dd bs=10 count=1 2> /dev/null`
if echo ${PAYLOADHEAD} | grep -e $'^\037\213' > /dev/null ; then
echo "found gzip magic bytes"
decomp="gzip"
elif echo ${PAYLOADHEAD} | grep -e "^BZh" > /dev/null ; then
echo "found bzip magic bytes"
decomp="bzip2"
else
echo " $i - no magic compression identifier found - skipping file"
( rm -rf "${WORKDIR}/*" )
continue
fi
echo -n " trying to decompress with ${decomp}..."
dd ibs=`rpmoffset < $i` skip=1 if=$i 2> /dev/null | ${decomp} -dc > $ofn 2> /dev/null
if [ $? = 0 ]; then
echo " OK"
else
echo " FAILED"
echo " $i failed to decompress - skipping file"
( rm -rf "${WORKDIR}/*" )
continue
fi
fi
DEST=${WORKDIR}
#if [ "$isSource" = "1" ]; then
# DEST=$DEST/$(basename $(basename $i .rpm) .src)
#fi
mkdir -p $DEST
( cd $DEST
cpio --extract --preserve-modification-time --make-directories < $ofn 1> /dev/null 2> /dev/null
rm -f $ofn
find . -type d -perm 700 -exec chmod 755 {} \; )
( cd ${WORKDIR} ; tar cf - . ) > `basename $i .rpm`.tar
gzip -9 `basename $i .rpm`.tar
if [ "`basename $0`" = "rpm2tgz" ]; then
mv `basename $i .rpm`.tar.gz `basename $i .rpm`.tgz
fi
( rm -rf "${WORKDIR}/*" )
echo
done
rm -rf ${WORKDIR}