luci-app-fwknopd: add the -q option to UCI

Thanks to spacezorro on Github for suggesting this.  The quiet tag suppresses the error messages if no key is present.

diff --git a/applications/luci-app-fwknopd/root/usr/sbin/gen-qr.sh b/applications/luci-app-fwknopd/root/usr/sbin/gen-qr.sh
index f525c2a..cfd7152 100644 (file)
--- a/applications/luci-app-fwknopd/root/usr/sbin/gen-qr.sh
+++ b/applications/luci-app-fwknopd/root/usr/sbin/gen-qr.sh
@@ -4,10 +4,10 @@ if [ "$1" != "" ]; then
 entry_num=$1
 fi
 
-key_base64=$(uci get fwknopd.@access[$entry_num].KEY_BASE64)
-key=$(uci get fwknopd.@access[$entry_num].KEY)
-hmac_key_base64=$(uci get fwknopd.@access[$entry_num].HMAC_KEY_BASE64)
-hmac_key=$(uci get fwknopd.@access[$entry_num].HMAC_KEY)
+key_base64=$(uci -q get fwknopd.@access[$entry_num].KEY_BASE64)
+key=$(uci -q get fwknopd.@access[$entry_num].KEY)
+hmac_key_base64=$(uci -q get fwknopd.@access[$entry_num].HMAC_KEY_BASE64)
+hmac_key=$(uci -q get fwknopd.@access[$entry_num].HMAC_KEY)
 
 if [ "$key_base64" != "" ]; then
 qr="KEY_BASE64:$key_base64"