63 lines
1.2 KiB
Go
63 lines
1.2 KiB
Go
package main
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import (
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"fmt"
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"log"
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"net"
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)
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func handleConnection(conn net.Conn) error {
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buff := make([]byte, 4096)
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defer conn.Close()
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welcome := "=== Hola, Wikipedia! ==="
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conn.Write([]byte(welcome + "\n"))
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for {
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if n, err := conn.Read(buff); err != nil {
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return err
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} else if n == 0 {
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log.Println("Zero bytes, connection closed")
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break
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} else {
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msg := buff[0 : n-2] // trim "\r\n"
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log.Print(fmt.Sprintf("msg: %s", msg))
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resp := fmt.Sprintf("You said: \"%s\"\r\n", msg)
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if n, err := conn.Write([]byte(resp)); err != nil {
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return err
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} else if n == 0 {
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log.Println("zero bytes, closing connection")
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break
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}
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}
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}
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return nil
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}
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func startSever() error {
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if ln, err := net.Listen("tcp", ":8008"); err != nil {
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return err
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} else {
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for {
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if conn, err := ln.Accept(); err != nil {
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log.Printf("Error accepting connection", err)
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continue
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} else {
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log.Println("New connection accepted")
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go func() {
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if err := handleConnection(conn); err != nil {
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log.Println("Error handling connection", err)
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}
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}()
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}
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}
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}
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}
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func main() {
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if err := startSever(); err != nil {
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log.Fatal(err)
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}
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}
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