说明：  一个自动查找retloc的小脚本,主要在于可以提取其中的findretloc函数使exploit更加智能化,具体使用参看源代码.灵感来自coresecurity paper和dvdman的exploit.
(An automatic search retloc a small script, which can be extracted lies mainly in the findretloc function so exploit more intelligent, see the specific use of the source code. Coresecurity paper draws its inspiration from the dvdman and exploit.)