package main import ( "crypto/tls" "crypto/x509" "fmt" "log" "os" "git.qowevisa.me/Qowevisa/gotell/env" ) func main() { host, err := env.GetHost() if err != nil { log.Fatal(err) } port, err := env.GetPort() if err != nil { log.Fatal(err) } loadingFileName := env.ServerFullchainFileName cert, err := os.ReadFile(loadingFileName) if err != nil { log.Fatalf("client: load root cert: %s", err) } log.Printf("Certificate %s loaded successfully!\n", loadingFileName) // roots := x509.NewCertPool() if ok := roots.AppendCertsFromPEM(cert); !ok { log.Fatalf("client: failed to parse root certificate") } config := &tls.Config{ RootCAs: roots, } conn, err := tls.Dial("tcp", fmt.Sprintf("%s:%d", host, port), config) if err != nil { log.Fatalf("client: dial: %s", err) } defer conn.Close() log.Println("client: connected to: ", conn.RemoteAddr()) message := "Hello secure Server\n" n, err := conn.Write([]byte(message)) if err != nil { log.Fatalf("client: write: %s", err) } log.Printf("client: wrote %q (%d bytes)", message, n) reply := make([]byte, 256) n, err = conn.Read(reply) if err != nil { log.Fatalf("client: read: %s", err) } log.Printf("client: read %q (%d bytes)", string(reply[:n]), n) log.Print("client: exiting") }