同一个ip:port上同时开启socks5和http代理服务器

代码如下所示：

package main

import (
	"bufio"
	"errors"
	"flag"
	"fmt"
	"io"
	"log"
	"net"
	"net/http"
	"strconv"
	"sync"
)

func main() {
	addr := flag.String("s", ":1080", "proxy server address")
	flag.Parse()

	if err := proxy(*addr); err != nil {
		panic(err)
	}
}

const netTCP = "tcp"

func proxy(addr string) error {
	lc, err := net.Listen(netTCP, addr)
	if err != nil {
		return err
	}
	//goland:noinspection GoUnhandledErrorResult
	defer lc.Close()

	fmt.Printf("proxy server listening on %s\n", addr)
	for {
		if ac, ea := lc.Accept(); ea == nil {
			go handleProxyFunc(ac)
		}
	}
}

type poolBuf struct {
	buf0, buf1 []byte

	buf *bufio.Reader
}

var bytePool = &sync.Pool{New: