From 83013091510dd1275bbf0b9a302533cadc17d392 Mon Sep 17 00:00:00 2001
From: Peter Kleiweg <p.c.j.kleiweg@rug.nl>
Date: Thu, 25 Mar 2021 11:56:09 +0100
Subject: [PATCH] examples: clonesrv6 typo, ticlient documentation, udpping3
 bugfix

---
 examples/clonesrv6.go       |  2 +-
 examples/intface/intface.go | 10 ++++++----
 examples/ticlient.go        |  6 ++++++
 3 files changed, 13 insertions(+), 5 deletions(-)

diff --git a/examples/clonesrv6.go b/examples/clonesrv6.go
index 9ee6729..bf06bc7 100644
--- a/examples/clonesrv6.go
+++ b/examples/clonesrv6.go
@@ -69,7 +69,7 @@ func main() {
 		srv.peer = 5556
 		srv.primary = false
 	} else {
-		fmt.Println("Usage: clonesrv4 { -p | -b }")
+		fmt.Println("Usage: clonesrv6 { -p | -b }")
 		return
 	}
 	//  Primary server will become first active
diff --git a/examples/intface/intface.go b/examples/intface/intface.go
index 5d38ad5..b79ffe9 100644
--- a/examples/intface/intface.go
+++ b/examples/intface/intface.go
@@ -106,8 +106,8 @@ type agent_t struct {
 func new_agent() (agent *agent_t) {
 
 	// push output from udp into zmq socket
-	bcast := &net.UDPAddr{Port: PING_PORT_NUMBER, IP: net.IPv4bcast}
-	conn, e := net.ListenUDP("udp", bcast)
+	addr := &net.UDPAddr{Port: PING_PORT_NUMBER, IP: net.IPv4allsys}
+	conn, e := net.ListenMulticastUDP("udp", nil, addr)
 	if e != nil {
 		panic(e)
 	}
@@ -139,6 +139,8 @@ func new_agent() (agent *agent_t) {
 		peers:       make(map[string]*peer_t),
 	}
 
+	pipe.SendMessage("AGENT ", uuID.String())
+
 	return
 }
 
@@ -177,7 +179,7 @@ func (agent *agent_t) handle_beacon() (err error) {
 	uuid_bytes := []byte(msg[0])
 	if bytes.Compare(uuid_bytes, agent.uuid_bytes) != 0 {
 		//  Find or create peer via its UUID string
-		uuID, _ := uuid.ParseBytes(uuid_bytes)
+		uuID, _ := uuid.FromBytes(uuid_bytes)
 		uuid_string := uuID.String()
 		peer, ok := agent.peers[uuid_string]
 		if !ok {
@@ -199,7 +201,7 @@ func (agent *agent_t) handle_beacon() (err error) {
 func (agent *agent_t) reap_peer(peer *peer_t) {
 	if time.Now().After(peer.expires_at) {
 		//  Report peer left the network
-		agent.pipe.SendMessage("LEFT", peer.uuid_string)
+		agent.pipe.SendMessage("LEFT  ", peer.uuid_string)
 		delete(agent.peers, peer.uuid_string)
 	}
 }
diff --git a/examples/ticlient.go b/examples/ticlient.go
index 9b50a5c..95a5fb8 100644
--- a/examples/ticlient.go
+++ b/examples/ticlient.go
@@ -2,6 +2,12 @@
 //  Titanic client example.
 //  Implements client side of http://rfc.zeromq.org/spec:9
 
+//  To use this example:
+//  1. start mdbroker
+//  2. start mdworker
+//  3. start titanic
+//  4. run ticlient
+
 package main
 
 import (