From e22d6c5ce7b579a3af3a5da7d692aaf952a8f651 Mon Sep 17 00:00:00 2001
From: Jo-Philipp Wich <jow@openwrt.org>
Date: Mon, 18 Jun 2012 23:22:55 +0200
Subject: [PATCH] netifd-proto.sh: execute proto_add_host_dependency() actions
 in subshell to retain callers environment

---
 dummy/netifd-proto.sh | 12 ++++++++----
 1 file changed, 8 insertions(+), 4 deletions(-)

diff --git a/dummy/netifd-proto.sh b/dummy/netifd-proto.sh
index 365c433..297e904 100755
--- a/dummy/netifd-proto.sh
+++ b/dummy/netifd-proto.sh
@@ -290,10 +290,14 @@ proto_add_host_dependency() {
 	local interface="$1"
 	local host="$2"
 
-	json_init
-	json_add_int action 6
-	json_add_string host "$host"
-	_proto_notify "$interface" -S
+	# execute in subshell to not taint callers env
+	# see tickets #11046, #11545, #11570
+	(
+		json_init
+		json_add_int action 6
+		json_add_string host "$host"
+		_proto_notify "$interface" -S
+	)
 }
 
 proto_setup_failed() {
-- 
2.11.0