Initial commit

main.go

@@ -0,0 +1,68 @@
+package main
+
+import (
+	"bytes"
+	"encoding/binary"
+	"fmt"
+	"net"
+	"time"
+)
+
+func main() {
+	address := "172.16.0.4:8000"
+	timeout := 5 * time.Second
+	send_buf := new(bytes.Buffer)
+	recv_buf := make([]byte, 1024)
+
+	conn, err := net.DialTimeout("tcp", address, timeout)
+	if err != nil {
+		fmt.Printf("Failed to connect: %v\n", err)
+		return
+	}
+	defer conn.Close()
+
+	fmt.Printf("Connected to %s\n", address)
+
+	rFrame := Frame{
+		Port:     0x01,
+		DataKind: 0x52,
+	}
+
+	err = binary.Write(send_buf, binary.LittleEndian, rFrame)
+	if err != nil {
+		fmt.Println("Binary write error:", err)
+	}
+
+	byteSlice := send_buf.Bytes()
+
+	_, err = conn.Write(byteSlice)
+	if err != nil {
+		fmt.Println("Error sending frame to server:", err)
+		return
+	}
+
+	n, err := conn.Read(recv_buf)
+	if err != nil {
+		fmt.Println("Error reading:", err)
+		return
+	}
+	fmt.Printf("Received %d bytes:\n", n)
+
+	reader := bytes.NewReader(recv_buf)
+	var f Frame
+	err = binary.Read(reader, binary.LittleEndian, &f)
+	if err != nil {
+		fmt.Println("Error decoding:", err)
+		return
+	}
+	fmt.Println("Response frame:")
+	fmt.Printf("Port: %d\n", f.Port)
+	fmt.Printf("DataKind: %c\n", f.DataKind)
+	fmt.Printf("PID: 0x%02X\n", f.PID)
+	fmt.Printf("CallFrom: %s\n", f.CallFrom)
+	fmt.Printf("CallTo: %s\n", f.CallTo)
+	fmt.Printf("DataLen: %d\n", f.DataLen)
+	major_verion := (uint16(recv_buf[37]) << 8) | uint16(recv_buf[36])
+	minor_verion := (uint16(recv_buf[41]) << 8) | uint16(recv_buf[40])
+	fmt.Printf("AGWPE version: %d.%d\n", major_verion, minor_verion)
+}