Respond with additional data so the client knows we interpreted things.

This came from a bad LLM. Needs cleanup.

server.py

@@ -3,15 +3,32 @@ import argparse
 import logging
 import socket
 
-LOGGER = logging.Logger(__name__)
+LOGGER = logging.getLogger(__name__)
 
 def main():
 	parser = argparse.ArgumentParser()
-	parser.add_argument("host", help="The IPv6 address of the host to connect to.")
+	parser.add_argument("--address", help="The IPv6 address to bind")
 	parser.add_argument("--port", "-p", default=50007, help="The port to connect to.")
+	parser.add_argument("--verbose", action="store_true", help="Verbose logging")
 	args = parser.parse_args()
 
-	addresses = [addr for addr in socket.getaddrinfo(host=args.host, port=args.port, family=socket.AF_INET6, type=socket.SOCK_STREAM, proto=0, flags=0)]
+	logging.basicConfig(
+		format="%(asctime)s %(message)s",
+		level=logging.DEBUG if args.verbose else logging.INFO,
+	)
+
+	hostname = socket.gethostname()
+	addresses = []
+	for interface in socket.if_nameindex():
+		interface_name = interface[1]
+		LOGGER.debug("Found interface %s", interface_name)
+		try:
+			addrs = socket.getaddrinfo(host=hostname, port=80, family=socket.AF_INET6)
+			for addr in addrs:
+				addresses.append((interface_name, addr[4][0]))
+		except socket.gaierror:
+			LOGGER.info("Interfare '%s' has no IPv6 addresses", interface_name)
+	addresses = [addr for addr in socket.getaddrinfo(host=args.address, port=args.port, family=socket.AF_INET6, type=socket.SOCK_STREAM, proto=0, flags=0)]
 	if not addresses:
 		raise ValueError("Couldn't find ipv6 address for source %s" % source_ip)
 	if len(addresses) > 1:
@@ -40,7 +57,7 @@ def bind_socket(family, type_, proto, canonname, sockaddr):
 			while True:
 				data = conn.recv(1024)
 				if not data: break
-				conn.send(data)
+				conn.send(("Hey " + data.decode("UTF-8").encode("UTF-8"))
 
 if __name__ == "__main__":
 	main()