From 4b4db585a4159015f56734999b0a1fde2d106489 Mon Sep 17 00:00:00 2001
From: Waldemar Brodkorb <wbx@openadk.org>
Date: Fri, 5 Nov 2010 15:05:08 +0100
Subject: handle empty variables in network script

---
 package/ppp/files/ppp.pre-up | 9 ++++++---
 1 file changed, 6 insertions(+), 3 deletions(-)

(limited to 'package/ppp/files')

diff --git a/package/ppp/files/ppp.pre-up b/package/ppp/files/ppp.pre-up
index 7f28f32da..6c0b59c7f 100755
--- a/package/ppp/files/ppp.pre-up
+++ b/package/ppp/files/ppp.pre-up
@@ -11,11 +11,14 @@
 }
 
 IDLEOPTIONS="persist\nmaxfail 0"
-if [ "$IF_PPP_IDLETIME" -gt 0 ]; then
+[ "$IF_PPP_IDLETIME" ] && {
+  if [ "$IF_PPP_IDLETIME" -gt 0 ]; then
 	IDLEOTPIONS="idletime $IF_PPP_IDLETIME"
-fi
+  fi
+}
 
-if [ "$IF_PPP_MTU" -gt 0 ] ; then 
+[ "$IF_PPP_MTU" ] || IF_PPP_MTU=1412
+if [ "$IF_PPP_MTU" -gt 0 ] ; then
 	NETWORKOPTIONS="mtu $IF_PPP_MTU\nmru $IF_PPP_MTU"
 fi
 
-- 
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