#!/system/bin/sh

PATH=/system/bin:/system/xbin

houdini_bin=0
dest_dir=/system/lib$1/arm$1
binfmt_misc_dir=/proc/sys/fs/binfmt_misc

urls[0]=http://t.cn/RBJ7mfG
urls[1]=http://t.cn/RBJ7eml
urls[2]=http://t.cn/RBJzLwu
urls[3]=http://goo.gl/96BPKe
urls[4]=http://goo.gl/v6c4Co
urls[5]=http://goo.gl/CtKjxx

if [ -z "$1" ]; then
	v=8_y
	u=1
else
	v=8_z
	u=2
fi

if [ -s /system/lib$1/libhoudini.so ]; then
	log -pi -thoudini "found /system/lib$1/libhoudini.so"
elif [ -e /system/etc/houdini$v.sfs ]; then
	mount /system/etc/houdini$v.sfs $dest_dir
else
	if mountpoint -q $dest_dir; then
		kill -9 `fuser -m $dest_dir`
		umount -f $dest_dir
	fi
	mkdir -p /data/arm
	cd /data/arm
	while ! mount houdini$v.sfs $dest_dir; do
		while [ "$(getprop net.dns1)" = "" ]; do
			sleep 10
		done
		wget ${urls[$u%6]} -cO houdini$v.sfs && continue
		rm -f houdini$v.sfs
		sleep 30
		let u+=3
	done
fi

[ -s /system/lib$1/libhoudini.so ] || mount --bind $dest_dir/libhoudini.so /system/lib$1/libhoudini.so

# this is to add the supported binary formats via binfmt_misc

if [ ! -e $binfmt_misc_dir/register ]; then
	modprobe binfmt_misc
	mount -t binfmt_misc none $binfmt_misc_dir
fi

cd $binfmt_misc_dir
if [ -e register ]; then
	[ -e /system/bin/houdini$1 ] && dest_dir=/system/bin
	# register Houdini for arm binaries
	if [ -z "$1" ]; then
		echo ':arm_exe:M::\\x7f\\x45\\x4c\\x46\\x01\\x01\\x01\\x00\\x00\\x00\\x00\\x00\\x00\\x00\\x00\\x00\\x02\\x00\\x28::'"$dest_dir/houdini:P" > register
		echo ':arm_dyn:M::\\x7f\\x45\\x4c\\x46\\x01\\x01\\x01\\x00\\x00\\x00\\x00\\x00\\x00\\x00\\x00\\x00\\x03\\x00\\x28::'"$dest_dir/houdini:P" > register
	else
		echo ':arm64_exe:M::\\x7f\\x45\\x4c\\x46\\x02\\x01\\x01\\x00\\x00\\x00\\x00\\x00\\x00\\x00\\x00\\x00\\x02\\x00\\xb7::'"$dest_dir/houdini64:P" > register
		echo ':arm64_dyn:M::\\x7f\\x45\\x4c\\x46\\x02\\x01\\x01\\x00\\x00\\x00\\x00\\x00\\x00\\x00\\x00\\x00\\x03\\x00\\xb7::'"$dest_dir/houdini64:P" > register
	fi
	if [ -e arm${1}_exe ]; then
		houdini_bin=1
	fi
else
	log -pe -thoudini "No binfmt_misc support"
fi

if [ $houdini_bin -eq 0 ]; then
	log -pe -thoudini "houdini$1 enabling failed!"
else
	log -pi -thoudini "houdini$1 enabled"
fi

exit 0