[wplug] additional security when installing RPMs

[Vanco, Donald]

RPMs get installed by root - if you have packages that you'd rather install
as non-root you can use "unrpm" - found here:
http://cvs.fedora.us/cgi-bin/cvsweb.cgi/packages/fedora-rpmdevtools/fedora-u
nrpm
	Ville Skytta's "unrpm" script unpacks RPMs like a tarball in a
directory with same name as the rpm in question (without the dot rpm).  It's
basically a wrapper for rpm2cpio, but it's kinda cool.

	You can then pick over the contents or install parts as desired...

Here's the script:
(this was composed in Windoze LookOut, so cut-n-paste at your own risk)

#!/bin/sh

#
# fedora-unrpm
# Extract RPMs into PWD, "tar zxvf"-style
#
# Author:  Ville Skyttä <ville.skytta at iki.fi>
# License: GPL

usage()
{
    echo "Usage: `basename $0` RPMFILE..."
}

extract()
{
    name=$(rpm -qp --qf "%{NAME}-%{VERSION}-%{RELEASE}" "$1")
    if [ $? -ne 0 -o -z "$name" ]; then
        echo "Warning: can't extract $name"
        return 1
    fi

    # Is it an absolute filename?
    absname="$1"
    if ! echo "$1" | grep -q "^/" -; then
        absname="$PWD/$1"
    fi

    (mkdir -p "$name" && \
    cd "$name" && \
    rpm2cpio "$absname" \
    | cpio --quiet -ivdum 2>&1 \
    | sed "s|^\(\./\)\?|$name/|" && \
    cd ..)
}

if [ -z "$*" ]; then
    usage
    exit 1
fi

for file in $*; do
    extract "$file"
done