lihnux’s gists

lihnux / client.go

Last active June 26, 2024 00:42 — forked from xjdrew/client.go

golang client certificate verify 客户端证书验证

	package main

	import (
	"crypto/tls"
	"crypto/x509"
	"flag"
	"io"
	"io/ioutil"
	"log"
	"os"

lihnux / check_special_ip.c

Last active September 5, 2023 00:26

一些网络相关的代码

	// 判断一个IP地址，是否属于以下网段：
	// 10.0.0.0/8, 169.254.0.0/16, 172.16.0.0/12, 192.168.0.0/16, 224.0.0.0/4, 255.255.255.255/32, fc00::/7, fe80::/10, ff00::/8
	#include <stdint.h>
	#include <arpa/inet.h>

	int is_special_ip(uint32_t ipv4) {
	uint8_t first_octet = ipv4 >> 24;

	if (first_octet == 10) return 1;
	if (first_octet == 169 && (ipv4 & 0xFFFF0000) == 0xA9FE0000) return 1;

lihnux / AliyunSMS.py

Created January 19, 2018 02:53

2018.01.19 -- 可用的Python3的阿里云短信发送的代码

	#coding: utf-8

	import uuid
	import datetime
	import hmac
	import base64
	import requests
	from urllib.parse import urlencode, quote

	class AliSMS():

lihnux / 老王装货.cpp

Last active April 21, 2017 09:32

动态规划-简易背包问题

	#include <stdlib.h>
	#include <stdio.h>

	// 千里码刷题: http://www.qlcoder.com/task/7566

	static const int goods[16] = {0, 509, 838, 924, 650, 604, 793, 564, 651, 697, 649, 747, 787, 701, 605, 644};

	#define MAX(x, y) ((x) > (y)? (x) : (y))

	int main(int argc, char * argv[])

lihnux / swift-sec-trust.swift

Created July 2, 2015 09:48

Swift NSURLAuthenticationMethodServerTrust

	//
	// SwiftHttp.swift
	//
	// Created by Lihnux on 7/2/15.
	//

	import Foundation


	class SwitfHttp: NSObject, NSURLSessionDelegate, NSURLSessionTaskDelegate {

lihnux / redirectNSLog.m

Created August 28, 2014 07:59

Redirecting NSLog to a file

	- (BOOL)redirectNSLog {
	// Create log file
	[@"" writeToFile:@"/NSLog.txt" atomically:YES encoding:NSUTF8StringEncoding error:nil];
	id fileHandle = [NSFileHandle fileHandleForWritingAtPath:@"/NSLog.txt"];
	if (!fileHandle) {
	NSLog(@"Opening log failed");
	return NO;
	}
	[fileHandle retain];
	// Redirect stderr

lihnux / base64.js

Created August 11, 2014 09:43

Javascript Base64 encode and decode

// Create Base64 Object

var Base64={_keyStr:"ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/=",encode:function(e){var t="";var n,r,i,s,o,u,a;var f=0;e=Base64._utf8_encode(e);while(f<e.length){n=e.charCodeAt(f++);r=e.charCodeAt(f++);i=e.charCodeAt(f++);s=n>>2;o=(n&3)<<4|r>>4;u=(r&15)<<2|i>>6;a=i&63;if(isNaN(r)){u=a=64}else if(isNaN(i)){a=64}t=t+this._keyStr.charAt(s)+this._keyStr.charAt(o)+this._keyStr.charAt(u)+this._keyStr.charAt(a)}return t},decode:function(e){var t="";var n,r,i;var s,o,u,a;var f=0;e=e.replace(/[^A-Za-z0-9\+\/\=]/g,"");while(f<e.length){s=this._keyStr.indexOf(e.charAt(f++));o=this._keyStr.indexOf(e.charAt(f++));u=this._keyStr.indexOf(e.charAt(f++));a=this._keyStr.indexOf(e.charAt(f++));n=s<<2|o>>4;r=(o&15)<<4|u>>2;i=(u&3)<<6|a;t=t+String.fromCharCode(n);if(u!=64){t=t+String.fromCharCode(r)}if(a!=64){t=t+String.fromCharCode(i)}}t=Base64._utf8_decode(t);return t},_utf8_encode:function(e){e=e.replace(/\r\n/g,"\n");var t="";for(var n=0;n<e.length;n++){var r=e.charCodeAt(n);if(r

lihnux / StringToByteArray.js

Created August 6, 2014 06:05

Javascript Convert String to Byte Array

	var url = "Hello World";
	var data = [];
	for (var i = 0; i < url.length; i++){
	data.push(url.charCodeAt(i));
	}

lihnux / Base64.m

Last active August 29, 2015 14:04

Cooca Base64 Encode & Decode

	#include <CoreFoundation/CoreFoundation.h>
	#include <Security/Security.h>

	static NSData base64helper(NSData input, SecTransformRef transform)
	{
	NSData *output = nil;

	if (!transform)
	return nil;

lihnux / Base64Decode.c

Created November 26, 2013 04:53 — forked from barrysteyn/Base64.md

	//Decodes Base64
	#include <openssl/bio.h>
	#include <openssl/evp.h>
	#include <stdint.h>
	#include <assert.h>

	size_t calcDecodeLength(const char* b64input) { //Calculates the length of a decoded string
	size_t len = strlen(b64input),
	padding = 0;

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