LibcSearcher 安装

https://github.com/lieanu/LibcSearcher

git clone https://github.com/lieanu/LibcSearcher.git
cd LibcSearcher
python setup.py develop

from LibcSearcher import *

#第二个参数，为已泄露的实际地址,或最后12位(比如：d90)，int类型
obj = LibcSearcher("fgets", 0X7ff39014bd90)

obj.dump("system")        #system 偏移
obj.dump("str_bin_sh")    #/bin/sh 偏移
obj.dump("__libc_start_main_ret")