From 550f21511a2da20717c6de6172b5bf2e9841d905 Mon Sep 17 00:00:00 2001
From: Tom Wilkie <tom.wilkie@gmail.com>
Date: Tue, 15 Dec 2015 13:37:16 +0000
Subject: [PATCH] We need to read /proc/PID/net/tcp6 to see the pids for the
 server end of local connections.

---
 probe/endpoint/procspy/proc.go | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/probe/endpoint/procspy/proc.go b/probe/endpoint/procspy/proc.go
index dd8c47ae1..30dfab97f 100644
--- a/probe/endpoint/procspy/proc.go
+++ b/probe/endpoint/procspy/proc.go
@@ -42,8 +42,9 @@ func walkProcPid(buf *bytes.Buffer, walker process.Walker) (map[uint64]*Proc, er
 		}
 		hasConns, ok := namespaces[statT.Ino]
 		if !ok {
-			read, err := readFile(filepath.Join(procRoot, dirName, "/net/tcp"), buf)
-			hasConns = err == nil && read > 0
+			read, _ := readFile(filepath.Join(procRoot, dirName, "/net/tcp"), buf)
+			read6, _ := readFile(filepath.Join(procRoot, dirName, "/net/tcp6"), buf)
+			hasConns = read+read6 > 0
 			namespaces[statT.Ino] = hasConns
 		}
 		if !hasConns {