rickyzhang-cn’s gists

rickyzhang-cn / # python - 2018-11-05_20-05-36.txt

Created November 8, 2018 11:55

python on macOS 10.14 - Homebrew build logs

	Homebrew build logs for python on macOS 10.14
	Build date: 2018-11-05 20:05:36

rickyzhang-cn / solution.cpp

Created March 9, 2016 09:01

interview solution

	#include <vector>
	#include <map>
	#include <string>
	#include <iostream>
	#include <cctype>

	using namespace std;

	bool Substitude(const string &template_str, map<string,string> &mapping, string &output) {
	int state=0;

rickyzhang-cn / itimer_demo.c

Last active August 29, 2015 14:22

timerfd demo

	//gcc -o itimer_demo itimer_demo.c -lrt

	#include <sys/timerfd.h>
	#include <time.h>
	#include <unistd.h>
	#include <stdlib.h>
	#include <stdio.h>
	#include <stdint.h> /* Definition of uint64_t */

	#define handle_error(msg) \

rickyzhang-cn / minivpn.c

Created June 2, 2015 08:36

miniVPN based on OpenSSL and TUN/TAP

	/*
	* tunproxy.c --- small demo program for tunneling over UDP with tun/tap
	*
	* Copyright (C) 2003 Philippe Biondi <phil@secdev.org>
	*
	* This program is free software; you can redistribute it and/or modify it
	* under the terms of the GNU Lesser General Public License as published by
	* the Free Software Foundation.
	*
	* This program is distributed in the hope that it will be useful, but

rickyzhang-cn / Makefile

Last active June 25, 2022 03:33

openssl demo

	INC=/usr/local/ssl/include/
	LIB=/usr/local/ssl/lib/

	all:
	g++ -I$(INC) -L$(LIB) cli.cpp -o cli -lssl -lcrypto -ldl -fpermissive
	g++ -I$(INC) -L$(LIB) serv.cpp -o serv -lssl -lcrypto -ldl -fpermissive

	clean:
	rm -rf *~ cli serv

rickyzhang-cn / ReferenceCounting.cpp

Created May 15, 2015 07:34

Reference count, copy-on-write

	//: C12:ReferenceCounting.cpp
	// From Thinking in C++, 2nd Edition
	// Available at http://www.BruceEckel.com
	// (c) Bruce Eckel 2000
	// Copyright notice in Copyright.txt
	// Reference count, copy-on-write
	#include "../require.h"
	#include <string>
	#include <iostream>
	using namespace std;

rickyzhang-cn / lis.cpp

Created May 8, 2015 07:12

Longest Increasing Subsequence

rickyzhang-cn / simple_lru.cpp

Created May 8, 2015 02:12

A simple lru implementation with c++

	// A simple LRU cache written in C++
	// Hash map + doubly linked list
	#include <iostream>
	#include <vector>
	#include <ext/hash_map>
	using namespace std;
	using namespace __gnu_cxx;

	template <class K, class T>
	struct Node{

rickyzhang-cn / skiplist.c

Created April 27, 2015 12:02

skiplist的一个C实现

	/* ======================================================================
	* Copyright (c) 2000,2006 Theo Schlossnagle
	* All rights reserved.
	* The following code was written by Theo Schlossnagle for use in the
	* Backhand project at The Center for Networking and Distributed Systems
	* at The Johns Hopkins University.
	*
	* This is a skiplist implementation to be used for abstract structures
	* and is release under the LGPL license version 2.1 or later. A copy
	* of this license can be found file LGPL.

rickyzhang-cn / simpletun.c

Created April 27, 2015 09:08

一个简单的使用tun/tap建立tunnel的示例代码

	/**************************************************************************
	* simpletun.c *
	* *
	* A simplistic, simple-minded, naive tunnelling program using tun/tap *
	* interfaces and TCP. Handles (badly) IPv4 for tun, ARP and IPv4 for *
	* tap. DO NOT USE THIS PROGRAM FOR SERIOUS PURPOSES. *
	* *
	* You have been warned. *
	* *
	* (C) 2009 Davide Brini. *

Ricky Zhang rickyzhang-cn