From 898d9c339a3a3155c98e1abfaa4fe8675e9774fb Mon Sep 17 00:00:00 2001
From: Eric House <eehouse@trand>
Date: Tue, 7 Feb 2012 18:05:06 -0800
Subject: [PATCH] add protocol-identifier byte.  For now just assert it
 matches.

---
 .../XWords4/src/org/eehouse/android/xw4/BTService.java       | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/xwords4/android/XWords4/src/org/eehouse/android/xw4/BTService.java b/xwords4/android/XWords4/src/org/eehouse/android/xw4/BTService.java
index 164005922..14c4950d4 100644
--- a/xwords4/android/XWords4/src/org/eehouse/android/xw4/BTService.java
+++ b/xwords4/android/XWords4/src/org/eehouse/android/xw4/BTService.java
@@ -60,6 +60,8 @@ public class BTService extends Service {
         public void eventOccurred( BTEvent event, Object ... args );
     }
 
+    private static final int BT_PROTO = 0;
+
     private static final int PING = 0;
     private static final int SCAN = 1;
     private static final int INVITE = 2;
@@ -305,6 +307,8 @@ public class BTService extends Service {
                     DbgUtils.logf( "run: accept() returned" );
                     inStream = new DataInputStream( socket.getInputStream() );
 
+                    byte proto = inStream.readByte();
+                    Assert.assertTrue( proto == BT_PROTO );
                     byte msg = inStream.readByte();
                     BTCmd cmd = BTCmd.values()[msg];
                     switch( cmd ) {
@@ -721,6 +725,7 @@ public class BTService extends Service {
         try { 
             socket.connect();
             dos = new DataOutputStream( socket.getOutputStream() );
+            dos.writeByte( BT_PROTO );
             dos.writeByte( cmd.ordinal() );
             DbgUtils.logf( "connect successful" );
         } catch ( java.io.IOException ioe ) {