From 9d334bee66a75bd334b8f241f1c31ce6cc0f5f17 Mon Sep 17 00:00:00 2001
From: Sam Tygier <samtygier@yahoo.co.uk>
Date: Tue, 7 Jan 2020 21:48:09 +0000
Subject: [PATCH] WPA_PASSWORD length check should only occur if set

Test if WPA_PASSWORD is set before check that it has a valid length.
---
 build.sh | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/build.sh b/build.sh
index 4ef6296..9e78728 100755
--- a/build.sh
+++ b/build.sh
@@ -220,7 +220,7 @@ if [[ -n "${APT_PROXY}" ]] && ! curl --silent "${APT_PROXY}" >/dev/null ; then
 	exit 1
 fi
 
-if [[ ${#WPA_PASSWORD} -lt 8 || ${#WPA_PASSWORD} -gt 63  ]] ; then
+if [[ -n "${WPA_PASSWORD}" && ${#WPA_PASSWORD} -lt 8 || ${#WPA_PASSWORD} -gt 63  ]] ; then
 	echo "WPA_PASSWORD" must be between 8 and 63 characters
 	exit 1
 fi