#!/tmp/busybox sh
#
# Universal Updater Script for Samsung Galaxy S Phones
# (c) 2011 by Teamhacksung
#

set -x
export PATH=/:/sbin:/system/xbin:/system/bin:/tmp:$PATH

# check if we're running on a bml or mtd device
if /tmp/busybox test -e /dev/block/bml7 ; then
# we're running on a bml device

	# make sure sdcard is mounted
	if ! /tmp/busybox grep -q /mnt/sdcard /proc/mounts ; then
		/tmp/busybox mkdir -p /mnt/sdcard
		/tmp/busybox umount -l /dev/block/mmcblk0p1
    		if ! /tmp/busybox mount -t vfat /dev/block/mmcblk0p1 /mnt/sdcard ; then
	      		/tmp/busybox echo "Cannot mount sdcard."
      		        exit 1
    		fi
  	fi

	# remove old log
	rm -rf /mnt/sdcard/cyanogenmod_bml.log

	# everything is logged into /sdcard/cyanogenmod.log
	exec >> /mnt/sdcard/cyanogenmod_bml.log 2>&1

	# make sure efs is mounted
	if ! /tmp/busybox grep -q /efs /proc/mounts ; then
		/tmp/busybox mkdir -p /efs
		/tmp/busybox umount -l /dev/block/stl3
    		if ! /tmp/busybox mount -t rfs /dev/block/stl3 /efs ; then
	      		/tmp/busybox echo "Cannot mount efs."
      		        exit 1
    		fi
  	fi

	# create a backup of efs
	/tmp/busybox rm -rf /mnt/sdcard/backup/efs
	/tmp/busybox mkdir -p /mnt/sdcard/backup/efs
	/tmp/busybox cp -R /efs/ /mnt/sdcard/backup

	# write the package path to sdcard cyanogenmod.cfg
	if /tmp/busybox test -n "$UPDATE_PACKAGE" ; then
		PACKAGE_LOCATION=${UPDATE_PACKAGE#/mnt}
		/tmp/busybox echo "$PACKAGE_LOCATION" > /mnt/sdcard/cyanogenmod.cfg
        fi

	# write new kernel to boot partition
	/tmp/flash_image boot /tmp/boot.img

	/sbin/reboot now
	exit 0

elif /tmp/busybox test -e /dev/block/mtdblock0 ; then
# we're running on a mtd device

	# make sure sdcard is mounted
	/tmp/busybox mkdir -p /sdcard

	if ! /tmp/busybox grep -q /sdcard /proc/mounts ; then
		/tmp/busybox umount -l /dev/block/mmcblk0p1
    		if ! /tmp/busybox mount -t vfat /dev/block/mmcblk0p1 /sdcard ; then
	      		/tmp/busybox echo "Cannot mount sdcard."
      		exit 1
    		fi
  	fi

	# remove old log
	rm -rf /sdcard/cyanogenmod_mtd.log

	# everything is logged into /sdcard/cyanogenmod.log
	exec >> /sdcard/cyanogenmod_mtd.log 2>&1

	# if a cyanogenmod.cfg exists, then this is a first time install
	# let's format the volumes and restore radio and efs
	if ! /tmp/busybox test -e /sdcard/cyanogenmod.cfg ; then
		exit 1
	fi
	# remove the cyanogenmod.cfg to prevent this from looping
	/tmp/busybox rm -f /sdcard/cyanogenmod.cfg

	# unmount, format and mount system
	/tmp/busybox umount -l /system
	/tmp/erase_image system
	/tmp/busybox mount -t yaffs2 /dev/block/mtdblock2 /system

	# unmount and format cache
	/tmp/busybox umount -l /cache
	/tmp/erase_image cache

	# unmount and format data
	tmp/make_ext4fs -b 4096 -g 32768 -i 8192 -I 256 -a /data /dev/block/mmcblk0p2

	# unmount and format datadata
	/tmp/busybox umount -l /datadata
	/tmp/erase_image datadata

	# flash radio image
	/tmp/erase_image radio
	/tmp/flash_image radio /tmp/modem.bin

	# restore efs backup
	if /tmp/busybox test -e /sdcard/backup/efs/nv_data.bin ; then
		/tmp/busybox umount -l /efs
		/tmp/erase_image efs
		/tmp/busybox mkdir -p /efs

		if ! /tmp/busybox grep -q /efs /proc/mounts ; then
    			if ! /tmp/busybox mount -t yaffs2 /dev/block/mtdblock4 /efs ; then
	      			/tmp/busybox echo "Cannot mount efs."
      				exit 1
    			fi
  		fi

		/tmp/busybox cp -R /sdcard/backup/efs /
		/tmp/busybox umount -l /efs
	else
		/tmp/busybox echo "Cannot restore efs."
	fi

	# flash boot image
	/tmp/bml_over_mtd.sh boot 72 reservoir 2004 /tmp/boot.img

	exit 0
fi