From 47bd255ffcde055a255bd3b5e2c96fe7899002fa Mon Sep 17 00:00:00 2001
From: Julien BLACHE <jb@jblache.org>
Date: Sat, 17 Jul 2010 08:05:06 +0200
Subject: [PATCH] Do not add AirTunes devices that don't support AirTunes v2

Filter based on the tp field of the mDNS TXT record.
---
 src/player.c | 28 ++++++++++++++++++++++++++++
 1 file changed, 28 insertions(+)

diff --git a/src/player.c b/src/player.c
index 53cb3fd9..c95c2609 100644
--- a/src/player.c
+++ b/src/player.c
@@ -2849,6 +2849,34 @@ raop_device_cb(const char *name, const char *type, const char *domain, const cha
     }
   else
     {
+      p = avahi_string_list_find(txt, "tp");
+      if (!p)
+	{
+	  DPRINTF(E_LOG, L_PLAYER, "AirTunes %s: no tp field in TXT record!\n", name);
+
+	  return;
+	}
+
+      avahi_string_list_get_pair(p, &key, &val, &valsz);
+      avahi_free(key);
+      if (!val)
+	{
+	  DPRINTF(E_LOG, L_PLAYER, "AirTunes %s: tp has no value\n", name);
+
+	  return;
+	}
+
+      if (!strstr(val, "UDP"))
+	{
+	  DPRINTF(E_LOG, L_PLAYER, "AirTunes %s: device does not support AirTunes v2 (tp=%s), discarding\n", name, val);
+
+	  avahi_free(val);
+	  return;
+	}
+
+      avahi_free(val);
+      val = NULL;
+
       p = avahi_string_list_find(txt, "pw");
       if (!p)
 	{