BitTorrent HTTP、UDP tracker impl(50%)

cmd/udpserver.go

@@ -0,0 +1,27 @@
+package main
+
+import (
+	"fmt"
+	"net"
+)
+
+func main() {
+	conn, err := net.ListenUDP("udp", &net.UDPAddr{IP: net.ParseIP("127.0.0.1"), Port: 9981})
+	if err != nil {
+		fmt.Println(err)
+		return
+	}
+	fmt.Printf("Local: <%s> \n", conn.LocalAddr().String())
+	data := make([]byte, 1024)
+	for {
+		n, remoteAddr, err := conn.ReadFromUDP(data)
+		if err != nil {
+			fmt.Printf("error during read: %s", err)
+		}
+		fmt.Printf("<%s> %s\n", remoteAddr, data[:n])
+		_, err = conn.WriteToUDP([]byte("world"), remoteAddr)
+		if err != nil {
+			fmt.Printf(err.Error())
+		}
+	}
+}