Use hardening option to add only hardening flags

[tinc] / src / script.h

diff --git a/src/script.h b/src/script.h
index 381f952..4d10d2e 100644 (file)
--- a/src/script.h
+++ b/src/script.h
@@ -29,8 +29,8 @@ typedef struct environment {
        char **entries;
 } environment_t;
 
-extern int environment_add(environment_t *env, const char *format, ...);
-extern void environment_update(environment_t *env, int pos, const char *format, ...);
+extern int environment_add(environment_t *env, const char *format, ...) ATTR_FORMAT(printf, 2, 3);
+extern void environment_update(environment_t *env, int pos, const char *format, ...) ATTR_FORMAT(printf, 3, 4);
 extern void environment_init(environment_t *env);
 extern void environment_exit(environment_t *env);