Extra checks

src/freedombone-freedns

@@ -42,7 +42,15 @@ if [ ! -f "$CONFIGURATION_FILE" ]; then
     exit 0
 fi
 
-code=$(grep 'DEFAULT_DOMAIN_CODE' "$CONFIGURATION_FILE" | awk -F '=' '{print $2}')
+if ! grep -q 'DEFAULT_DOMAIN_CODE=' "$CONFIGURATION_FILE"; then
+    exit 0
+fi
+
+code=$(grep 'DEFAULT_DOMAIN_CODE=' "$CONFIGURATION_FILE" | awk -F '=' '{print $2}')
+
+if [ ${#code} -lt 30 ]; then
+    exit 0
+fi
 
 if [ $VERBOSE ]; then
     echo $"wget --no-check-certificate -O - https://freedns.afraid.org/dynamic/update.php?${code}= >> /tmp/freedns 2>&1 &"