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tcp_server.go
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package main
import (
"bufio"
"fmt"
"net"
"os"
)
func StartTCPServer(port int) {
// Listen for incoming connections
listener, err := net.Listen("tcp", fmt.Sprintf("localhost:%d", port))
if err != nil {
fmt.Println("Error:", err)
return
}
defer listener.Close()
fmt.Println("Server is listening on TCP port", port)
for {
// Accept incoming connections
conn, err := listener.Accept()
if err != nil {
fmt.Println("Error:", err)
continue
}
go handleTCPReceiver(conn)
go handleTCPSender(conn)
}
}
func handleTCPReceiver(conn net.Conn) {
defer conn.Close()
// Create a buffer to read data into
buffer := make([]byte, 1024)
for {
// Read data from the client
n, err := conn.Read(buffer)
if err != nil {
fmt.Println("Error:", err)
return
}
// Process and use the data (here, we'll just print it)
fmt.Printf("%s", buffer[:n])
}
}
func handleTCPSender(conn net.Conn) {
defer conn.Close()
scanner := bufio.NewScanner(os.Stdin)
for {
scanner.Scan()
line := scanner.Text()
_, err := conn.Write([]byte(line))
if err != nil {
fmt.Println("Error:", err)
return
}
}
}