Initial commit of the fsck_udf(8) utility that checks and repairs UDF

filesystems on optical media as well as on disc images, harddisc partitions
and wedges.

sbin/fsck_udf/Makefile

@@ -0,0 +1,23 @@
+#	$NetBSD: Makefile,v 1.1 2022/04/06 13:35:50 reinoud Exp $
+
+.include <bsd.own.mk>
+
+PROG=	fsck_udf
+MAN=	fsck_udf.8
+SRCS=	main.c udf_core.c \
+	udf_osta.c fattr.c fsutil.c
+
+FSCK=	${NETBSDSRCDIR}/sbin/fsck
+NEWFS=	${NETBSDSRCDIR}/sbin/newfs_udf
+MOUNT=	${NETBSDSRCDIR}/sbin/mount
+KUDF=	${NETBSDSRCDIR}/sys/fs/udf
+CPPFLAGS+= -I${FSCK} -I${KUDF} -I${NEWFS} -I${NETBSDSRCDIR}/sys
+.PATH:	${FSCK} ${NEWFS} ${MOUNT} ${KUDF}
+
+DPADD+=${LIBUTIL}
+LDADD+=-lutil -lprop
+
+CWARNFLAGS.clang+=	-Wno-error=address-of-packed-member
+CWARNFLAGS.gcc+=	${GCC_NO_ADDR_OF_PACKED_MEMBER}
+
+.include <bsd.prog.mk>

sbin/fsck_udf/fsck_udf.8

@@ -0,0 +1,115 @@
+.\"	$NetBSD: fsck_udf.8,v 1.1 2022/04/06 13:35:50 reinoud Exp $
+.\"
+.\" Copyright (C) 2022 Reinoud Zandijk
+.\" Based on fsck_msdos(8) by
+.\"     Copyright (C) 1995 Wolfgang Solfrank
+.\"     Copyright (c) 1995 Martin Husemann
+.\"
+.\" Redistribution and use in source and binary forms, with or without
+.\" modification, are permitted provided that the following conditions
+.\" are met:
+.\" 1. Redistributions of source code must retain the above copyright
+.\"    notice, this list of conditions and the following disclaimer.
+.\" 2. Redistributions in binary form must reproduce the above copyright
+.\"    notice, this list of conditions and the following disclaimer in the
+.\"    documentation and/or other materials provided with the distribution.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE AUTHORS ``AS IS'' AND ANY EXPRESS OR
+.\" IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+.\" OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+.\" IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+.\" INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+.\" NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+.\" DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+.\" THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+.\" (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+.\" THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+.\"
+.\"
+.Dd February 6, 2022
+.Dt FSCK_UDF 8
+.Os
+.Sh NAME
+.Nm fsck_udf
+.Nd Universal Disk Format filesystem consistency checker
+.Sh SYNOPSIS
+.Nm
+.Fl p
+.Op Fl fH
+.Ar filesystem ...
+.Nm
+.Op Fl sSynfH
+.Ar filesystem ...
+.Sh DESCRIPTION
+The
+.Nm
+utility verifies and repairs
+.Tn Universal Disk Format
+filesystems (more commonly known as
+.Tn UDF
+filesystems).
+.Pp
+The first form of
+.Nm
+preens the specified filesystems.
+It is normally started by
+.Xr fsck 8
+run from
+.Pa /etc/rc
+during automatic reboot, when an UDF filesystem is detected.
+When preening file systems,
+.Nm
+will fix common inconsistencies non-interactively.
+If more serious problems are found,
+.Nm
+does not try to fix them, indicates that it was not
+successful, and exits.
+.Pp
+The second form of
+.Nm
+checks the specified file systems and tries to repair all
+detected inconsistencies, requesting confirmation before
+making any changes.
+.Pp
+The options are as follows:
+.Bl -tag -width XXXoptions
+.It Fl f
+Force detailed checking even when file system is marked closed.
+.It Fl n
+Causes
+.Nm
+to assume no as the answer to all operator
+questions.
+.It Fl p
+Preen the specified filesystems.
+.It Fl y
+Causes
+.Nm
+to assume yes as the answer to all operator questions.
+.It Fl s Ar session
+Select session
+.Ar session
+to be checked on recordable media. This allows older sessions
+of the file system on recordable media to be recovered.
+.It Fl S
+Causes
+.Nm
+to scan for older VAT tables on recordable media. This allows older snapshots
+of the file system on recordable media to be recovered.
+.It Fl H
+Enables heuristic repair options repairing known corruptions in the wild
+caused by bugs.
+.El
+.Sh SEE ALSO
+.Xr fsck 8 ,
+.Xr fsck_ffs 8 ,
+.Xr mount_udf 8
+.Sh HISTORY
+A
+.Nm
+utility appeared in
+.Nx 10.0 .
+.Sh BUGS
+.Nm
+is still under construction. Not all possible reparations are implemented.
+