maybe fix failing zconfig spec

paddor · Jan 3, 2025 · f7c7132 · f7c7132
1 parent fe6f850
commit f7c7132
Showing 1 changed file with 6 additions and 1 deletion.
diff --git a/lib/cztop/config/serialization.rb b/lib/cztop/config/serialization.rb
@@ -6,7 +6,12 @@ module CZTop::Config::Serialization
   # Serialize to a string in the ZPL format.
   # @return [String]
   def to_s
-    ffi_delegate.str_save.read_string
+    if ffi_delegate.null?
+      return ''
+    else
+      ptr = ffi_delegate.str_save
+      ptr.null? ? '' : ptr.read_string
+    end
   end