rpm2targz, less: moved rpm2targz from core to opt

rpm2targz/.footprint

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+drwxr-xr-x	root/root	usr/
+drwxr-xr-x	root/root	usr/bin/
+-rwxr-xr-x	root/root	usr/bin/rpm2targz
+drwxr-xr-x	root/root	usr/lib/
+drwxr-xr-x	root/root	usr/lib/rpm2targz/
+-rwxr-xr-x	root/root	usr/lib/rpm2targz/rpmoffset

rpm2targz/.md5sum

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+8341044e13ddead93295d57f5853ab00  rpm2targz
+4501e004279155038f16000c7b45acb4  rpmoffset.c

rpm2targz/Pkgfile

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+# Description: A tool to convert RPM files to TAR.GZ files
+# URL:         http://www.crux.nu
+# Maintainer:  Per Lidén <per@fukt.bth.se>
+
+name=rpm2targz
+version=1.0.4
+release=1
+source=(rpm2targz rpmoffset.c)
+
+build() {
+    gcc $CFLAGS rpmoffset.c -o rpmoffset
+    install -D -m 0755 rpm2targz $PKG/usr/bin/rpm2targz
+    install -D -m 0755 rpmoffset $PKG/usr/lib/rpm2targz/rpmoffset
+}

rpm2targz/README

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+POST-INSTALL
+
+   To enable less(1) to view RPM files, add the following line to
+   the case statement in /usr/lib/less/filter:
+
+     *.rpm) dd ibs=`/usr/lib/rpm2targz/rpmoffset < "$1"` skip=1 if="$1" | gzip -dc | cpio -tv ;;

rpm2targz/rpm2targz

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+#!/bin/sh
+#
+# Modified by Per Liden <per@fukt.bth.se>, 2000, 2004.
+#             Han Boetes <han@mijncomputer.nl>, 2004.
+#
+# Copyright 1997, 1998 Patrick Volkerding, Moorhead, Minnesota USA
+# All rights reserved.
+#
+# 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.
+#
+
+if [ "$#" = "0" ]; then
+	echo "usage: ${0##*/} <file.rpm> ..."
+	exit 1
+fi
+
+# If $TMPDIR is not set, then use $TMP.
+# If $TMP is not set either, then mktemp(1) will use /tmp.
+${TMPDIR:=$TMP}
+
+for file_rpm in $*; do
+	if [ ! -f $file_rpm ]; then
+		echo "$file_rpm: file not found"
+		continue
+	fi
+
+	dir_tar_gz=`mktemp -d` || exit 1
+	file_cpio=`mktemp` || exit 1
+	file_cpio_z=`mktemp` || exit 1
+	file_tar_gz=${file_rpm%.rpm}.tar.gz
+
+	echo "$file_rpm => $file_tar_gz"
+
+	dd ibs=`/usr/lib/rpm2targz/rpmoffset < $file_rpm` skip=1 if=$file_rpm of=$file_cpio_z 2> /dev/null
+
+	if file $file_cpio_z | grep "bzip2 compressed data"; then
+		bzip2 -dc < $file_cpio_z > $file_cpio
+	else
+		gzip -dc < $file_cpio_z > $file_cpio
+	fi
+
+	(	cd $dir_tar_gz
+		cpio --quiet -i -m -d < $file_cpio
+		find . -type d -perm 700 -exec chmod 755 {} \;
+		tar cf - .
+	) | gzip > $file_tar_gz
+
+	rm -rf $file_cpio $file_cpio_z $dir_tar_gz
+done
+
+# End of file.

rpm2targz/rpmoffset.c

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+/* Find how deeply inside an .RPM the real data is */
+/* kept, and report the offset in bytes */
+
+/* Wouldn't it be a lot more sane if we could just untar these things? */
+
+#include <stdlib.h>
+
+/* These offsets keep getting bigger, so we're going to just bite a 2MB */
+/* chunk of RAM right away so that we have enough.  Yeah, horrible */
+/* quick and dirty implementation, but hey -- it gets the job done. */
+
+#define RPMBUFSIZ 2097152
+const char magic[][3]={"\x1F\x8B\x08"/*gzip*/,"BZh"/*bzip2*/};
+
+main()
+{
+        char *buff = malloc(RPMBUFSIZ),*eb,*p;
+        for (p = buff, eb = buff + read(0,buff,RPMBUFSIZ); p < eb; p++)
+                if ((*p == magic[0][0] && p[1] == magic[0][1] && p[2] == magic[0][2]) ||
+                    (*p == magic[1][0] && p[1] == magic[1][1] && p[2] == magic[1][2]))
+                        printf("%d\n",p - buff),
+                        exit(0);
+        exit(1);
+}