lib: lib-event - Use for-loop in copying categories

Avoids unsigned integer wrap

diff --git a/src/lib/lib-event.c b/src/lib/lib-event.c
index 940508e391840ebe77bb791673ac981f7ef04e8f..b9b2e2f5b0af42404ca69aa8ad6e2ca65a7bb940 100644 (file)
--- a/src/lib/lib-event.c
+++ b/src/lib/lib-event.c
@@ -142,8 +142,8 @@ void event_copy_categories(struct event *to, struct event *from)
 {
        unsigned int cat_count;
        struct event_category *const *categories = event_get_categories(from, &cat_count);
-       while (cat_count-- > 0)
-               event_add_category(to, categories[cat_count]);
+       for (unsigned int i = 1; i <= cat_count; i++)
+               event_add_category(to, categories[cat_count-i]);
 }
 
 void event_copy_fields(struct event *to, struct event *from)