header2lk.sh

original_lk=$1
modified_lk=$2

if [ ! -f "$original_lk" ] && [ ! -f "$modified_lk" ];
  then
      echo "[-] Invalid image(s)!"
      exit 1
fi

header=$(dd if="$original_lk" bs=1 skip=8 count=2 2>/dev/null)

if [ "$header" != "lk" ] && [ "$header" != "LK" ];
  then
      echo "[-] Can't find the LK header in $original_lk!"
      exit 1
fi

dd if="$original_lk" of=out_buf.bin bs=$((0x200)) count=1 2>/dev/null
cat $modified_lk >> out_buf.bin && rm "$modified_lk"
mv out_buf.bin $modified_lk && echo "[+] Ok"

exit 0