92 lines
1.6 KiB
Plaintext
92 lines
1.6 KiB
Plaintext
package lab
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import (
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"bufio"
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"fmt"
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"io"
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"net"
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"os"
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)
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func ExampleMain() {
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// Choose either server or client mode
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if len(os.Args) > 1 && os.Args[1] == "server" {
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runServer()
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} else {
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runClient()
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}
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}
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func runServer() {
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listener, err := net.Listen("tcp", ":8080")
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if err != nil {
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panic(err)
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}
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defer listener.Close()
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fmt.Println("Server listening on :8080")
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for {
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conn, err := listener.Accept()
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if err != nil {
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fmt.Println("Error accepting connection:", err)
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continue
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}
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go handleConnection(conn)
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}
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}
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func handleConnection(conn net.Conn) {
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defer conn.Close()
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reader := bufio.NewReader(conn)
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for {
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message, err := reader.ReadString('\n')
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if err != nil {
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if err == io.EOF {
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fmt.Println("Client disconnected")
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return
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}
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fmt.Println("Error reading from client:", err)
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return
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}
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fmt.Println("Received from client:", message)
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// Process the message (e.g., send a response)
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// ...
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// Send a response to the client
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_, err = conn.Write([]byte("Server received your message\n"))
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if err != nil {
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fmt.Println("Error writing to client:", err)
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return
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}
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}
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}
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func runClient() {
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conn, err := net.Dial("tcp", "localhost:8080")
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if err != nil {
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panic(err)
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}
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defer conn.Close()
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fmt.Println("Connected to server")
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// Send a message to the server
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_, err = conn.Write([]byte("Hello from the client!\n"))
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if err != nil {
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fmt.Println("Error writing to server:", err)
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return
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}
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// Read the server's response
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reader := bufio.NewReader(conn)
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message, err := reader.ReadString('\n')
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if err != nil {
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fmt.Println("Error reading from server:", err)
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return
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}
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fmt.Println("Received from server:", message)
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}
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