#!/bin/ksh -p
#
# Copyright 2008 Sun Microsystems, Inc.  All rights reserved.
# Use is subject to license terms.
#
# ident	"%Z%%M%	%I%	%E% SMI"

#
# set path, but inherit /tmp/bfubin if it is sane
#
if [ "`echo $PATH | cut -f 1 -d :`" = /tmp/bfubin ] && \
    [ -O /tmp/bfubin ] ; then
	export PATH=/tmp/bfubin:/usr/sbin:/usr/bin:/sbin
else
	export PATH=/usr/sbin:/usr/bin:/sbin
fi

usage() {
	echo "This utility is a component of the bootadm(1M) implementation"
	echo "and it is not recommended for stand-alone use."
	echo "Please use bootadm(1M) instead."
	echo ""
	echo "Usage: ${0##*/}: [-R <root>] [-p <platform>] <filelist> ..."
	echo "where <platform> is one of i86pc, sun4u or sun4v"
	exit 2
}

build_platform() {

	altroot=$1

	(
		cd $altroot/
		if [ -z "$STRIP" ] ; then
			ls -d platform/*/kernel
		else
			ls -d platform/*/kernel | grep -v $STRIP
		fi
	)
}

# default platform is what we're running on
PLATFORM=`uname -m`

altroot=""
filelists=
platform_provided=no

OPTIND=1
while getopts R:p: FLAG
do
        case $FLAG in
        R)	if [ "$OPTARG" != "/" ]; then
			altroot="$OPTARG"
		fi
		;;
	p)	platform_provided=yes
		PLATFORM="$OPTARG"
		;;
        *)      usage
		;;
        esac
done

shift `expr $OPTIND - 1`
if [ $# -eq 0 ]; then
	usage
fi

filelists=$*

#
# If the target platform is provided, as is the case for diskless,
# or we're building an archive for this machine, we can build
# a smaller archive by not including unnecessary components.
#
filtering=no
if [ "$altroot" == "" ] || [ $platform_provided = yes ]; then
	case $PLATFORM in
	i86pc)
		STRIP=
		;;
	sun4u)
		STRIP=platform/sun4v/
		;;
	sun4v)
		STRIP=platform/sun4u/
		;;
	*)
		STRIP=
		;;
	esac
fi

for list in $filelists
do
	if [ -f $altroot/$list ]; then
		grep ^platform$ $altroot/$list > /dev/null
		if [ $? = 0 ] ; then
			build_platform $altroot
			if [ -z "$STRIP" ] ; then
				cat $altroot/$list | grep -v ^platform$
			else
				cat $altroot/$list | grep -v ^platform$ | \
				    grep -v $STRIP
			fi
		else
			if [ -z "$STRIP" ] ; then
				cat $altroot/$list
			else
				cat $altroot/$list | grep -v $STRIP
			fi
		fi

	fi
done

exit 0