From 6f81b90ff5973e3c54c0cb25e9ea8231be0ab3d2 Mon Sep 17 00:00:00 2001
From: Andriy Gapon <avg@FreeBSD.org>
Date: Wed, 10 Jun 2009 19:02:54 +0000
Subject: [PATCH] fsck_msdosfs: accept no-op -C option for compatibilty with
 fsck

Submitted by:	marck
Reviewed by:	current@
Approved by:	jhb (mentor)
MFC after:	1 week
---
 sbin/fsck_msdosfs/fsck_msdosfs.8 | 10 +++++++---
 sbin/fsck_msdosfs/main.c         |  4 +++-
 2 files changed, 10 insertions(+), 4 deletions(-)

diff --git a/sbin/fsck_msdosfs/fsck_msdosfs.8 b/sbin/fsck_msdosfs/fsck_msdosfs.8
index 8631210cb4e6..3bc22b120f39 100644
--- a/sbin/fsck_msdosfs/fsck_msdosfs.8
+++ b/sbin/fsck_msdosfs/fsck_msdosfs.8
@@ -32,7 +32,7 @@
 .\"
 .\" $FreeBSD$
 .\"
-.Dd August 13, 1995
+.Dd June 4, 2009
 .Dt FSCK_MSDOSFS 8
 .Os
 .Sh NAME
@@ -41,10 +41,10 @@
 .Sh SYNOPSIS
 .Nm
 .Fl p
-.Op Fl f
+.Op Fl Cf
 .Ar filesystem ...
 .Nm
-.Op Fl ny
+.Op Fl Cny
 .Ar filesystem ...
 .Sh DESCRIPTION
 The
@@ -80,6 +80,10 @@ making any changes.
 .Pp
 The options are as follows:
 .Bl -tag -width indent
+.It Fl C
+Compatibility with the corresponding
+.Xr fsck 8
+option (skip check if clean), defined to no-op.
 .It Fl F
 Compatibility with the wrapper
 .Xr fsck 8
diff --git a/sbin/fsck_msdosfs/main.c b/sbin/fsck_msdosfs/main.c
index eacc792d0323..c09abd521512 100644
--- a/sbin/fsck_msdosfs/main.c
+++ b/sbin/fsck_msdosfs/main.c
@@ -74,8 +74,10 @@ main(int argc, char **argv)
 	int ch;
 
 	skipclean = 1;
-	while ((ch = getopt(argc, argv, "fFnpy")) != -1) {
+	while ((ch = getopt(argc, argv, "CfFnpy")) != -1) {
 		switch (ch) {
+		case 'C': /* for fsck_ffs compatibility */
+			break;
 		case 'f':
 			skipclean = 0;
 			break;