Use __attribute__ marking for format strings

diff --git a/src/connman.h b/src/connman.h
index adca4d3..e4bfe51 100644 (file)
--- a/src/connman.h
+++ b/src/connman.h
@@ -590,5 +590,6 @@ int __connman_stats_get(struct connman_service *service,
 
 int __connman_iptables_init(void);
 void __connman_iptables_cleanup(void);
-int __connman_iptables_command(const char *format, ...);
+int __connman_iptables_command(const char *format, ...)
+                               __attribute__((format(printf, 1, 2)));
 int __connman_iptables_commit(const char *table_name);