import socket

# Create a UDP socket
sock = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)

# Bind the socket to the address and port
server_address = ('', 12345)  # Bind to all interfaces on port 12345
sock.bind(server_address)

print("UDP server is up and listening")

while True:
    print("\nWaiting for a message")
    data, address = sock.recvfrom(4096)

    print(f"Received {len(data)} bytes from {address}")
    print(f"Message: {data.decode()}")

    # Send the received data back to the client
    sent = sock.sendto(data, address)
    print(f"Sent {sent} bytes back to {address}")