cocurr.go

package main

import (
  "flag"
  "net/http"
  "crypto/tls"
  "crypto/x509"
  "io/ioutil"
  "log"
)

var addr = flag.String("addr", ":1718", "http service address")

func QR(w http.ResponseWriter, req *http.Request) {

}

func main() {
  
  cert2_b, _ := ioutil.ReadFile("cert2.pem")
  priv2_b, _ := ioutil.ReadFile("cert2.key")
  priv2, _ := x509.ParsePKCS1PrivateKey(priv2_b)
  cert := tls.Certificate{
    Certificate: [][]byte{ cert2_b },
    PrivateKey: priv2,
  }
  config := tls.Config{Certificates: []tls.Certificate{cert}, InsecureSkipVerify: true}

  for i := 0; i < 40000; i++ {
    go func() {
      conn, err := tls.Dial("tcp", "imap.gmail.com:993", &config)
      if err != nil {
        log.Println("client: dial: %s", err)
      } else {
        log.Println("client: connected to: ", conn.RemoteAddr())
      }
    }()
  }

  flag.Parse()
  http.Handle("/", http.HandlerFunc(QR))
  err := http.ListenAndServe(*addr, nil)
  if err != nil {
    log.Fatal("ListenAndServe:", err)
  }
}