+#define RULEFILE_SUFFIX ".rules"
+#define PERMFILE_SUFFIX ".permissions"
+
+#define set_empty_perms(dev, m, o, g) \
+ if (dev->mode == 0) \
+ dev->mode = m; \
+ if (dev->owner[0] == '\0') \
+ strfieldcpy(dev->owner, o); \
+ if (dev->group[0] == '\0') \
+ strfieldcpy(dev->group, g);
+