python脚本将ascii码形式的文件转换为真正的二进制文件

1、通过tcpdump在越狱手机上面抓取所有包，包含环路包

　　将手机通过USB线连接电脑，并将其映射到本地端口，启动抓包

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rvictl -s bb44203ca128c7b13bfc66fa34f6c1c9b428d0d9   ssh root@localhost -p 2222   tcpdump -s0 -i any  -w /tmp/aaa123aaa.pcap

 

2、通过wireshark分析过滤感兴趣的包

3、利用python脚本将二进制文本转换成真正的二进制数据

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#!/usr/local/bin/python3 # -*- coding: utf-8 -*- __author__ = 'qqvipfunction' import struct   if __name__ == '__main__':     with open('/Users/qqvipfunction/Downloads/asciihex.txt') as fp:         list = []         for line in fp:             line = line.lstrip().rstrip()             for i in range(0, len(line), 2):                 hexItem = line[i] + line[i+1]                 list.append(int(hexItem, 16))           with open('/Users/qqvipfunction/Downloads/asciihex.plist', 'wb') as f:             for byte in list:                 f.write(struct.pack('B', byte))