lihnux

// 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

#coding: utf-8

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

class AliSMS():

lihnux

#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

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

import Foundation


class SwitfHttp: NSObject, NSURLSessionDelegate, NSURLSessionTaskDelegate {

lihnux

- (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

// 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

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

lihnux

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

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

    if (!transform)
        return nil;

lihnux

//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;