From cab9f71ffeee157849da3af972fe29e4431aa3d9 Mon Sep 17 00:00:00 2001
From: Xin LI <delphij@FreeBSD.org>
Date: Wed, 31 Jul 2013 07:06:58 +0000
Subject: [PATCH] Resolve fflag with realpath().

MFC after:	2 weeks
---
 sbin/mdconfig/mdconfig.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/sbin/mdconfig/mdconfig.c b/sbin/mdconfig/mdconfig.c
index 6ba4cd6e603..233058d5d66 100644
--- a/sbin/mdconfig/mdconfig.c
+++ b/sbin/mdconfig/mdconfig.c
@@ -161,7 +161,9 @@ main(int argc, char **argv)
 		case 'f':
 			if (fflag != NULL)
 				errx(1, "-f can be passed only once");
-			fflag = optarg;
+			fflag = realpath(optarg, NULL);
+			if (fflag == NULL)
+				err(1, "realpath");
 			break;
 		case 'o':
 			if (!strcmp(optarg, "async"))