From f1c55410fda2b0d125a0102e4c78ba4b89e335c2 Mon Sep 17 00:00:00 2001
From: stsp <stsp@openbsd.org>
Date: Mon, 8 Feb 2021 19:05:05 +0000
Subject: [PATCH] Make bioctl properly verify raidlevels specified via the -c
 option.

Trailing characters in the option argument were ignored, such that
-cC1 (typo of -c1C) was interpreted as -cC instead of being rejected.

ok jsing@
---
 sbin/bioctl/bioctl.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/sbin/bioctl/bioctl.c b/sbin/bioctl/bioctl.c
index 2d2146bb30f..58561e5f30f 100644
--- a/sbin/bioctl/bioctl.c
+++ b/sbin/bioctl/bioctl.c
@@ -1,4 +1,4 @@
-/* $OpenBSD: bioctl.c,v 1.146 2021/02/08 11:20:03 stsp Exp $ */
+/* $OpenBSD: bioctl.c,v 1.147 2021/02/08 19:05:05 stsp Exp $ */
 
 /*
  * Copyright (c) 2004, 2005 Marco Peereboom
@@ -133,6 +133,8 @@ main(int argc, char *argv[])
 			func |= BIOC_CREATERAID;
 			if (strcmp(optarg, "1C") == 0) {
 				cr_level = 0x1C;
+			} else if (strlen(optarg) != 1) {
+				errx(1, "Invalid RAID level");
 			} else if (isdigit((unsigned char)*optarg)) {
 				cr_level = strtonum(optarg, 0, 10, &errstr);
 				if (errstr != NULL)
-- 
2.20.1