From b9ffca42e5016a209e5935228302a5e3840a147b Mon Sep 17 00:00:00 2001
From: Tom Wilkie <tom@weave.works>
Date: Wed, 23 Sep 2015 03:35:53 +0000
Subject: [PATCH] Don't fail if there are no existing nat mappings.

---
 probe/endpoint/conntrack.go | 7 +++----
 1 file changed, 3 insertions(+), 4 deletions(-)

diff --git a/probe/endpoint/conntrack.go b/probe/endpoint/conntrack.go
index 520426a35..1f3d87613 100644
--- a/probe/endpoint/conntrack.go
+++ b/probe/endpoint/conntrack.go
@@ -194,10 +194,9 @@ func (c *Conntracker) existingConnections(args ...string) ([]Flow, error) {
 		}
 	}()
 	var result conntrack
-	if err := xml.NewDecoder(stdout).Decode(&result); err != nil {
-		if err == io.EOF {
-			return []Flow{}, err
-		}
+	if err := xml.NewDecoder(stdout).Decode(&result); err == io.EOF {
+		return []Flow{}, nil
+	} else if err != nil {
 		return []Flow{}, err
 	}
 	return result.Flows, nil