From de814251a2a615e8645bc7c1c11cbdd6089cfefd Mon Sep 17 00:00:00 2001
From: Josh Paetzel <jpaetzel@FreeBSD.org>
Date: Mon, 12 Mar 2012 20:44:44 +0000
Subject: [PATCH] Fix a couple of bugs saving network config. Don't duplicate
 wlans_ lines. Enable ipv6 on wireless devices correctly.

Submitted by:	kris
Obtained from:	PC-BSD
---
 .../pc-sysinstall/backend/functions-networking.sh  | 14 ++++++++++----
 1 file changed, 10 insertions(+), 4 deletions(-)

diff --git a/usr.sbin/pc-sysinstall/backend/functions-networking.sh b/usr.sbin/pc-sysinstall/backend/functions-networking.sh
index 6b8cb1e0a940..d8e3da7499f0 100755
--- a/usr.sbin/pc-sysinstall/backend/functions-networking.sh
+++ b/usr.sbin/pc-sysinstall/backend/functions-networking.sh
@@ -104,7 +104,10 @@ enable_dhcp_all()
       then
         # We have a wifi device, setup a wlan* entry for it
         WLAN="wlan${WLANCOUNT}"
-        echo "wlans_${NIC}=\"${WLAN}\"" >>${FSMNT}/etc/rc.conf
+	cat ${FSMNT}/etc/rc.conf | grep -q "wlans_${NIC}="
+	if [ $? -ne 0 ] ; then
+          echo "wlans_${NIC}=\"${WLAN}\"" >>${FSMNT}/etc/rc.conf
+	fi
         echo "ifconfig_${WLAN}=\"DHCP\"" >>${FSMNT}/etc/rc.conf
         CNIC="${WLAN}"
         WLANCOUNT=$((WLANCOUNT+1))
@@ -138,7 +141,7 @@ enable_slaac_all()
     do
       NIC="`echo $line | cut -d ':' -f 1`"
       DESC="`echo $line | cut -d ':' -f 2`"
-      echo_log "Setting $NIC to acceptign RAs on the system."
+      echo_log "Setting $NIC to accepting RAs on the system."
       check_is_wifi ${NIC}
       if [ $? -eq 0 ]
       then
@@ -146,9 +149,12 @@ enable_slaac_all()
         # Given we cannot have DHCP and SLAAC the same time currently
 	# it's save to just duplicate.
         WLAN="wlan${WLANCOUNT}"
-        echo "wlans_${NIC}=\"${WLAN}\"" >>${FSMNT}/etc/rc.conf
+	cat ${FSMNT}/etc/rc.conf | grep -q "wlans_${NIC}="
+	if [ $? -ne 0 ] ; then
+          echo "wlans_${NIC}=\"${WLAN}\"" >>${FSMNT}/etc/rc.conf
+	fi
 	#echo "ifconfig_${NIC}=\"up\"" >>${FSMNT}/etc/rc.conf
-        echo "ifconfig_${WLAN}=\"inet6 accept_rtadv\"" >>${FSMNT}/etc/rc.conf
+        echo "ifconfig_${WLAN}_ipv6=\"inet6 accept_rtadv\"" >>${FSMNT}/etc/rc.conf
         CNIC="${WLAN}"
         WLANCOUNT=$((WLANCOUNT+1))
       else