gopl-zh.github.com/vendor/gopl.io/ch8/netcat2/netcat.go

34 lines
556 B
Go
Raw Normal View History

// Copyright © 2016 Alan A. A. Donovan & Brian W. Kernighan.
// License: https://creativecommons.org/licenses/by-nc-sa/4.0/
// See page 223.
// Netcat is a simple read/write client for TCP servers.
package main
import (
"io"
"log"
"net"
"os"
)
//!+
func main() {
conn, err := net.Dial("tcp", "localhost:8000")
if err != nil {
log.Fatal(err)
}
defer conn.Close()
go mustCopy(os.Stdout, conn)
mustCopy(conn, os.Stdin)
}
//!-
func mustCopy(dst io.Writer, src io.Reader) {
if _, err := io.Copy(dst, src); err != nil {
log.Fatal(err)
}
}