From e694d233a99c8ffe6cba67810c43dccffc7dd06e Mon Sep 17 00:00:00 2001
From: jasper <jasper@openbsd.org>
Date: Thu, 9 Sep 2021 20:07:49 +0000
Subject: [PATCH] fix crash when passing empty cli arguments as B_AT_NIL wasn't
 handled as a valid argument type

found with afl++
ok mpi@
---
 usr.sbin/btrace/btrace.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/usr.sbin/btrace/btrace.c b/usr.sbin/btrace/btrace.c
index 371ddf6b9df..601b205a663 100644
--- a/usr.sbin/btrace/btrace.c
+++ b/usr.sbin/btrace/btrace.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: btrace.c,v 1.55 2021/09/09 11:20:40 mpi Exp $ */
+/*	$OpenBSD: btrace.c,v 1.56 2021/09/09 20:07:49 jasper Exp $ */
 
 /*
  * Copyright (c) 2019 - 2021 Martin Pieuchot <mpi@openbsd.org>
@@ -1437,6 +1437,7 @@ ba2dtflags(struct bt_arg *ba)
 		case B_AT_LONG:
 		case B_AT_VAR:
 	    	case B_AT_HIST:
+		case B_AT_NIL:
 			break;
 		case B_AT_BI_KSTACK:
 			flags |= DTEVT_KSTACK;
-- 
2.20.1