improve multicast check, remove broadcast check

If an interface does not support IFF_MULTICAST, force UnicodeOnly.
Also, there's not reason to check IFF_BROADCAST since IPv6 uses
multicast, not broadcast.

CHANGES

@@ -1,3 +1,6 @@
+2013/04/13	Force UnicodeOnly if IFF_MULTICAST is unavailable
+		Remove check for IFF_BROADCAST since it isn't used
+
 2013/03/14	Fix for systems without sysctl.h from vapier
 		Updating to version 1.9.3
 		release 1.9.3

device-common.c

@@ -39,25 +39,18 @@ check_device(struct Interface *iface)
                 	flog(LOG_ERR, "interface %s is not UP", iface->Name);
 		return (-1);
 	}
+
 	if (!(ifr.ifr_flags & IFF_RUNNING))
 	{
 		if (!iface->IgnoreIfMissing)
                 	flog(LOG_ERR, "interface %s is not RUNNING", iface->Name);
 		return (-1);
 	}
 
-	if (! iface->UnicastOnly && !(ifr.ifr_flags & IFF_MULTICAST))
-	{
-		flog(LOG_WARNING, "interface %s does not support multicast",
-			iface->Name);
-		flog(LOG_WARNING, "   do you need to add the UnicastOnly flag?");
-	}
-
-	if (! iface->UnicastOnly && !(ifr.ifr_flags & IFF_BROADCAST))
+	if (!iface->UnicastOnly && !(ifr.ifr_flags & IFF_MULTICAST))
 	{
-		flog(LOG_WARNING, "interface %s does not support broadcast",
-			iface->Name);
-		flog(LOG_WARNING, "   do you need to add the UnicastOnly flag?");
+		flog(LOG_INFO, "interface %s does not support multicast, forcing UnicastOnly", iface->Name);
+		iface->UnicastOnly = 1;
 	}
 
 	return 0;