From b9f75a560dedd426db89cb74b16aaad85b0f50be Mon Sep 17 00:00:00 2001
From: nbd <nbd@3c298f89-4303-0410-b956-a3cf2f4a3e73>
Date: Tue, 3 Oct 2006 19:38:34 +0000
Subject: [PATCH] don't recreate the resolv.conf file from the dhcp script if
 no dhcp server is supplied (reported by exobyte)

git-svn-id: svn://svn.openwrt.org/openwrt/branches/buildroot-ng/openwrt@4903 3c298f89-4303-0410-b956-a3cf2f4a3e73
---
 .../default/usr/share/udhcpc/default.script      | 16 +++++++++-------
 1 file changed, 9 insertions(+), 7 deletions(-)

diff --git a/package/base-files/default/usr/share/udhcpc/default.script b/package/base-files/default/usr/share/udhcpc/default.script
index e048687f7..74e703715 100755
--- a/package/base-files/default/usr/share/udhcpc/default.script
+++ b/package/base-files/default/usr/share/udhcpc/default.script
@@ -37,13 +37,15 @@ case "$1" in
 				route add default gw $i dev $interface
 			done
 		fi
-
-		echo -n > $RESOLV_CONF
-		${domain:+echo search $domain} >> $RESOLV_CONF
-		for i in $dns ; do
-			echo "adding dns $i"
-			echo "nameserver $i" >> $RESOLV_CONF
-		done
+		
+		[ -n "$dns" ] && {
+			echo -n > $RESOLV_CONF
+			${domain:+echo search $domain} >> $RESOLV_CONF
+			for i in $dns ; do
+				echo "adding dns $i"
+				echo "nameserver $i" >> $RESOLV_CONF
+			done
+		}
 		
 		hotplug_event ifup
 		
-- 
2.35.1