From 74a904d04cca967c3a3b8b88f775fecdf07b6514 Mon Sep 17 00:00:00 2001
From: Neil Alexander <neilalexander@users.noreply.github.com>
Date: Mon, 10 Dec 2018 00:26:12 +0000
Subject: [PATCH] Don't os.Chmod if we suspect the socket belongs to an
 abstract namespace

---
 src/yggdrasil/admin.go | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/src/yggdrasil/admin.go b/src/yggdrasil/admin.go
index 720c30f..2c3dc34 100644
--- a/src/yggdrasil/admin.go
+++ b/src/yggdrasil/admin.go
@@ -348,8 +348,12 @@ func (a *admin) listen() {
 			}
 			a.listener, err = net.Listen("unix", a.listenaddr[7:])
 			if err == nil {
-				if err := os.Chmod(a.listenaddr[7:], 0660); err != nil {
-					a.core.log.Println("WARNING:", a.listenaddr[:7], "may have unsafe permissions!")
+				switch a.listenaddr[7:8] {
+				case "@": // maybe abstract namespace
+				default:
+					if err := os.Chmod(a.listenaddr[7:], 0660); err != nil {
+						a.core.log.Println("WARNING:", a.listenaddr[:7], "may have unsafe permissions!")
+					}
 				}
 			}
 		case "tcp":