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

/*
 * MCrypt API available online:
 * http://linux.die.net/man/3/mcrypt
 */
#include <mcrypt.h>

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local client_ip = ngx.req.get_headers()["X-Forwarded-For"]

client_ip = string.match((client_ip or ngx.var.remote_addr), '[%d%.]+')

local passed = false
for allowed_ip in string.gmatch(ngx.var.allowed_ips, '([%d%.]+)') do
    if client_ip == allowed_ip then
        passed = true
    end
end

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location ~* /img/(.+)_(\d+)x(\d+)\.(jpg|gif|png)$ {            
    set $h $2;
    set $w $3;
    if ($h = "0") {
        rewrite /img/(.+)_(\d+)x(\d+)\.(jpg|gif|png)$ /img/$1.$4 last;
    }
    if ($w = "0") {
        rewrite /img/(.+)_(\d+)x(\d+)\.(jpg|gif|png)$ /img/$1.$4 last;
    }

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chown root.root /path/to/application
chmod u+s /path/to/application

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while(1){
    int ret = read(fd, buf, len);
    if(ret == -1){
        if(errno == EINTR){
            continue;
        }else if(errno == EAGAIN){
            // 根据你和调用者的约定, 返回一个数值告诉它再次重试
            // 一般是结合 select/epoll 等 IO 多路复用函数
        }
        exit(-1);

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package com.gofuliwo.logserver;

import java.util.ArrayList;
import java.util.Arrays;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

/**
 * Hello world!

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import java.io.FileInputStream;
import java.security.MessageDigest;

public class TestCheckSum {

    public static void main(String args[]) throws Exception {
        String datafile = "c:\\INSTLOG.TXT";
        MessageDigest md = MessageDigest.getInstance("SHA1");
        FileInputStream fis = new FileInputStream(datafile);
        byte[] dataBytes = new byte[1024];

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#!/bin/sh
#
# Simple Redis init.d script conceived to work on Linux systems
# as it does use of the /proc filesystem.

REDISPORT=6379
EXEC=/usr/local/bin/redis-server
CLIEXEC=/usr/local/bin/redis-cli

PIDFILE=/var/run/redis_${REDISPORT}.pid

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#include <iostream>
#include <sstream>

int main()
{
   // The hex code that should be converted ...
   std::string hexCode;
   std::cout << "Please enter the hex code: ";
   std::cin >> hexCode;

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$.urlParam = function(name){
    var results = new RegExp('[\?&]' + name + '=([^&#]*)').exec(window.location.href);
    if (results==null){
       return null;
    } else{
       return decodeURIComponent(results[1]) || 0;
    }
}