[Minor] Do not crash with empty array

diff --git a/src/libutil/util.h b/src/libutil/util.h
index 1f2d2f8529056bc4c2c394fcfe051f9ff76947f9..85d2ce2426d6b332b36c4af200625a084775f8d1 100644 (file)
--- a/src/libutil/util.h
+++ b/src/libutil/util.h
@@ -500,5 +500,5 @@ gpointer rspamd_file_xmap (const char *fname, guint mode,
 gpointer rspamd_shmem_xmap (const char *fname, guint mode,
                gsize *size);
 
-#define PTR_ARRAY_FOREACH(ar, i, cur) for ((i) = 0, (cur) = g_ptr_array_index((ar), 0); (i) < (ar)->len; (cur) = g_ptr_array_index((ar), (i)), ++(i))
+#define PTR_ARRAY_FOREACH(ar, i, cur) if (ar != NULL) for ((i) = 0, (cur) = g_ptr_array_index((ar), 0); (i) < (ar)->len; (cur) = g_ptr_array_index((ar), (i)), ++(i))
 #endif