From 5e01d653fab3ba1bbb5859e58615923645c9925d Mon Sep 17 00:00:00 2001
From: Felix Fietkau <nbd@openwrt.org>
Date: Mon, 19 Jun 2006 21:45:07 +0000
Subject: [PATCH] add a list append function to functions.sh

SVN-Revision: 4014
---
 openwrt/package/base-files/default/etc/functions.sh | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/openwrt/package/base-files/default/etc/functions.sh b/openwrt/package/base-files/default/etc/functions.sh
index d54a346315..fbb5a160c4 100755
--- a/openwrt/package/base-files/default/etc/functions.sh
+++ b/openwrt/package/base-files/default/etc/functions.sh
@@ -1,6 +1,10 @@
 #!/bin/sh
 alias debug=${DEBUG:-:}
 
+# newline
+N="
+"
+
 # valid interface?
 if_valid () (
   ifconfig "$1" >&- 2>&- ||
@@ -12,6 +16,13 @@ hotplug_dev() {
 	env -i ACTION=$1 INTERFACE=$2 /sbin/hotplug net
 }
 
+append() {
+	local var="$1"
+	local value="$2"
+	local sep="${3:- }"
+	eval "export ${var}=\"\${${var}:+\${${var}}${value:+$sep}}$value\""
+}
+
 config_cb() {
 	return 0
 }
-- 
2.30.2