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#!/bin/sh
#
#  Copyright (C) 2008 Sony Computer Entertainment Inc.
#  Copyright 2008 Sony Corp.
#
#  This program is free software; you can redistribute it and/or modify
#  it under the terms of the GNU General Public License as published by
#  the Free Software Foundation; version 2 of the License.
#
#  This program is distributed in the hope that it will be useful,
#  but WITHOUT ANY WARRANTY; without even the implied warranty of
#  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
#  GNU General Public License for more details.
#
#  You should have received a copy of the GNU General Public License
#  along with this program; if not, write to the Free Software
#  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
#

usage() {
	echo "ps3-dump-bootloader (@PACKAGE_NAME@) @PACKAGE_VERSION@" >&2
	echo "DESCRIPTION" >&2
	echo "     The ps3-dump-bootloader utility will dump the Other OS binary image from" >&2
	echo "     PS3 flash memory to stdout." >&2
	echo "OPTIONS" >&2
	echo "     -s, --sum" >&2
	echo "             Compute the md5sum of the Other OS image and only print it to" >&2
	echo "             stdout." >&2
	echo "     -h, --help" >&2
	echo "             Print a help message." >&2
	echo "     -V, -version" >&2
	echo "             Display the program version number." >&2
	echo "SEE ALSO" >&2
	echo "     ps3-flash-util(8), md5sum(1)" >&2
	echo "Send bug reports to @PACKAGE_BUGREPORT@" >&2
	exit 1
}

version() {
	echo "ps3-dump-bootloader (@PACKAGE_NAME@) @PACKAGE_VERSION@"
	exit 1
}

sum=

while [ "$#" -gt 0 ]; do
    case "$1" in
    --sum | -s)
	sum="y"
	;;
    --version | -V)
	version
	;;
    *)
	usage
	;;
    esac
    shift
done


ldr_size=`@prefix@/sbin/ps3-flash-util -s \
	| grep 'h\.ldr_size' \
	| tr -d ' ' | cut -d':' -f4 | cut -d'(' -f1`

if [ ! "$ldr_size" ]; then
	echo "ERROR: can't dump image" >&2;
	exit 1;
fi

ldr_offset=`@prefix@/sbin/ps3-flash-util -s \
	| grep 'h\.ldr_area_offset' \
	| tr -d ' ' | cut -d':' -f4`

if [ ! "ldr_offset" ]; then
	echo "ERROR: can't dump image" >&2;
	exit 1;
fi

ldr_offset=$((512 * ldr_offset))

if [ "$sum" ]; then
	dd if=/dev/ps3flash bs=1 skip=$ldr_offset count=$ldr_size | md5sum
else
	dd if=/dev/ps3flash bs=1 skip=$ldr_offset count=$ldr_size
fi