用golang解决 Flash AS3 的 socket 安全策略文件问题

代码如下：

</pre><pre>package main

import (
	"bufio"
	"fmt"
	"net"
	"os"
	"time"
)

const (
	Head = 4
)

var (
	ClientMap map[int]net.Conn = make(map[int]net.Conn)
)

func main() {
	fmt.Println(os.Args[0])
	ip_port := "127.0.0.1:843"
	if len(os.Args) > 1 {
		ip_port = os.Args[1]
	}
	fmt.Println(
		"\nFlash AS 策略服务运行中...\n自动回应SocketXml端口(即843端口)的crossdomain.xml请求\n如需指定ip和端口，可以在程序启动时指定参数，格式如下\ngameserver843.exe 192.168.101.139:843",
		"\n当前正在侦听", ip_port,
		"\n请不要关闭此窗口...")
	tcpAddr, err := net.ResolveTCPAddr("tcp4", ip_port)
	checkError(err)
	listener, err := net.ListenTCP("tcp", tcpAddr)
	checkError(err)
	clientIndex := 0

	for {
		clientIndex++
		conn, err := listener.Accept()
		if err != nil {
			continue
		}
		go handleClient(conn, clientIndex)
	}
}

func handleClient(conn net.Conn, index int) {
	ClientMap[index] = conn

	fmt.Println("")
	fmt.Println("=======================")
	fmt.Println("新用户连接, 来自: ", conn.RemoteA