A socks5 wrapper without authentication

socks5pipe.go

package main

import (
    "log"
    "os"
    "context"
    "github.com/things-go/go-socks5"
    "golang.org/x/net/proxy"
    "flag"
    "net"
)
var target = flag.String("t","1.1.1.1:1080","proxy host")
var user = flag.String("u","user","username")
var password = flag.String("p","password","username")
var bind = flag.String("b","127.0.0.1:1081","bind address")


func main() {
    flag.Parse()
    dialSocksProxy, err := proxy.SOCKS5("tcp", *target, &proxy.Auth{User:*user,Password:*password}, proxy.Direct)
    if err != nil {
        log.Fatal(err)
    }
    ctx_dilaer := func(ctx context.Context, network string, addr string)(net.Conn,error){
        return dialSocksProxy.Dial(network,addr);
    }
        
        server := socks5.NewServer(
                socks5.WithLogger(socks5.NewLogger(log.New(os.Stdout, "socks5: ", log.LstdFlags))),
                socks5.WithDial(ctx_dilaer),
        )

        
    log.Printf("start bind socks5://%s",*bind)
        if err := server.ListenAndServe("tcp", *bind); err != nil {
                panic(err)
        }
}