zhangyoufu’s gists

zhangyoufu / cache.c

Last active August 29, 2015 14:26

ARM d-cache

	#include <stdio.h>

	unsigned char shellcode[] = {
	0x4f, 0xf0, 0x00, 0x00,
	0xf0, 0x47,
	};

	int main()
	{
	shellcode[2] = 0x01;

zhangyoufu / gist:09a0122f8d78249dff1a

Created August 17, 2015 09:10

Debian/Ubuntu Package, top level dependency (cannot detect dependency loop)

dpkg-query -W | cut -f1 | xargs apt-cache rdepends --installed | python2.7 -c 'import re,sys;sys.stdout.write(re.sub(".*\nReverse Depends:\n( [ |].*\n)+","",sys.stdin.read()).replace("Reverse Depends:\n",""))'

zhangyoufu / gdbserver.sh

Created November 6, 2015 16:41

gdb remote debugging android, w/o tcp forwarding

	#!/bin/bash

	# Usage:
	# (gdb) target extended-remote \| ./gdbserver.sh

	(echo 'stty raw -echo; exec gdbserver --multi - 2>/dev/nul'; cat) \| adb shell \| stdbuf -o0 dos2unix \| (read -r; read -r; cat)

zhangyoufu / 99simple-vhost.conf

Last active April 14, 2016 02:31

bring lighttpd mod_simple_vhost to nginx

	# for test purpose only, do not use in production
	# inspired by http://blog.pkh.me/p/4-simple_vhost-with-nginx.html

	server {
	listen 80 default_server;
	listen [::]:80 default_server;
	server_name default;
	server_name_in_redirect off;

	set $vpath /srv/_vhost/$host;

zhangyoufu / chromium.gyp_env

Created June 22, 2016 06:26

enable Widevine CDM for Chromium (tested on 51.0.2704.103)

	{
	'GYP_DEFINES': 'ffmpeg_branding=Chrome proprietary_codecs=1 enable_widevine=1'
	}

zhangyoufu / Chrome EME Key Systems

Created June 23, 2016 15:03

	(lldb) p g_key_systems.Pointer()
	(media::KeySystemsImpl *) $3 = 0x00000001222553b0
	(lldb) p *$3
	(media::KeySystemsImpl) $4 = {
	key_system_map_ = size=2 {
	[0] = {
	__cc = {
	first = "org.w3.clearkey"
	second = {
	key_system = "org.w3.clearkey"

zhangyoufu / D.py

Last active October 17, 2016 20:14

Google APAC 2016 Round E Problem D, Sums of Sums (aka APAC 2017 Practice Round Problem D)

	#!/usr/bin/env python2
	# Ref: https://www.quora.com/How-can-problem-D-Sums-of-sums-from-Round-E-of-the-Google-APAC-Test-2016-be-solved-for-the-large-dataset

	import multiprocessing

	get_int = lambda: int( raw_input() )
	get_multi_int = lambda: map( int, raw_input().strip().split() )

	def binary_search( x, f, lo, hi ):
	'''\

zhangyoufu / xiaomi_mobile_numbers.py

Created August 27, 2016 07:30

小米移动选号辅助

	# coding: utf-8

	import sys
	reload(sys)
	sys.setdefaultencoding('utf-8')

	import json
	import requests
	import time

zhangyoufu / fintek.txt

Created December 5, 2016 06:16

Fintek SuperIO Chip, Vendor ID, Chip ID

	http://www.hardwaresecrets.com/datasheets/F81865_V028P.pdf
	F81865 0x3419, 0x0307

	http://pdf1.alldatasheet.com/datasheet-pdf/view/257912/FINTEK/F71882.html
	https://www.scribd.com/document/121452631/fintek-F71882F-datasheet
	F71882 0x3419, 0x4105

	http://pdf1.alldatasheet.com/datasheet-pdf/view/459084/FINTEK/F81866A.html
	F81866A 0x3419, 0x1010

zhangyoufu / vlsc_catalog_bruteforce.py

Last active August 10, 2020 02:04

	#!/usr/bin/env python3
	import datetime
	import requests

	last = '20170807'
	fmt = '%Y%m%d'
	date = datetime.datetime.strptime(last, fmt).date()
	today = datetime.date.today()
	session = requests.Session()
	while date < today:

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