diff --git a/Android.mk b/Android.mk
new file mode 100644
index 0000000..3c3cb61
--- /dev/null
+++ b/Android.mk
@@ -0,0 +1,3 @@
+ifneq ($(TARGET_SIMULATOR),true)
+  include $(call all-subdir-makefiles)
+endif
diff --git a/COPYING b/COPYING
new file mode 100644
index 0000000..94a9ed0
--- /dev/null
+++ b/COPYING
@@ -0,0 +1,674 @@
+                    GNU GENERAL PUBLIC LICENSE
+                       Version 3, 29 June 2007
+
+ Copyright (C) 2007 Free Software Foundation, Inc. <http://fsf.org/>
+ Everyone is permitted to copy and distribute verbatim copies
+ of this license document, but changing it is not allowed.
+
+                            Preamble
+
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+  The licenses for most software and other practical works are designed
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+OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO,
+THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+PURPOSE.  THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE PROGRAM
+IS WITH YOU.  SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF
+ALL NECESSARY SERVICING, REPAIR OR CORRECTION.
+
+  16. Limitation of Liability.
+
+  IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
+WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS
+THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY
+GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE
+USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF
+DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD
+PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS),
+EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF
+SUCH DAMAGES.
+
+  17. Interpretation of Sections 15 and 16.
+
+  If the disclaimer of warranty and limitation of liability provided
+above cannot be given local legal effect according to their terms,
+reviewing courts shall apply local law that most closely approximates
+an absolute waiver of all civil liability in connection with the
+Program, unless a warranty or assumption of liability accompanies a
+copy of the Program in return for a fee.
+
+                     END OF TERMS AND CONDITIONS
+
+            How to Apply These Terms to Your New Programs
+
+  If you develop a new program, and you want it to be of the greatest
+possible use to the public, the best way to achieve this is to make it
+free software which everyone can redistribute and change under these terms.
+
+  To do so, attach the following notices to the program.  It is safest
+to attach them to the start of each source file to most effectively
+state the exclusion of warranty; and each file should have at least
+the "copyright" line and a pointer to where the full notice is found.
+
+    <one line to give the program's name and a brief idea of what it does.>
+    Copyright (C) <year>  <name of author>
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+Also add information on how to contact you by electronic and paper mail.
+
+  If the program does terminal interaction, make it output a short
+notice like this when it starts in an interactive mode:
+
+    <program>  Copyright (C) <year>  <name of author>
+    This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
+    This is free software, and you are welcome to redistribute it
+    under certain conditions; type `show c' for details.
+
+The hypothetical commands `show w' and `show c' should show the appropriate
+parts of the General Public License.  Of course, your program's commands
+might be different; for a GUI interface, you would use an "about box".
+
+  You should also get your employer (if you work as a programmer) or school,
+if any, to sign a "copyright disclaimer" for the program, if necessary.
+For more information on this, and how to apply and follow the GNU GPL, see
+<http://www.gnu.org/licenses/>.
+
+  The GNU General Public License does not permit incorporating your program
+into proprietary programs.  If your program is a subroutine library, you
+may consider it more useful to permit linking proprietary applications with
+the library.  If this is what you want to do, use the GNU Lesser General
+Public License instead of this License.  But first, please read
+<http://www.gnu.org/philosophy/why-not-lgpl.html>.
diff --git a/ChangeLog b/ChangeLog
new file mode 100644
index 0000000..4a53630
--- /dev/null
+++ b/ChangeLog
@@ -0,0 +1,345 @@
+commit 41574812a2586f0b6aa1d4f6e2276e557e9cbbcf
+Author: Daniel Baumann <daniel@debian.org>
+Date:   Sun Nov 23 18:41:01 2008 +0100
+
+    Applying Fedoras dosfstools-vfat-timingfix.diff from Bill Nottingham
+    <notting@redhat.com> to fix vfat timing issue. See
+    https://bugzilla.redhat.com/show_bug.cgi?id=448247 for more information.
+
+commit b80656109cc5cffdefd626c2ec9d45e3cf63a03e
+Author: Ulrich Mueller <ulm@gentoo.org>
+Date:   Tue Oct 7 07:55:37 2008 +0200
+
+    Patch to check for bad number of clusters in dosfsck:
+    
+      * FAT16 filesystems with 65525 clusters or more will be rejected
+        (Before, this was not tested for. Up to 65535 clusters were accepted
+        as good).
+    
+      * For FAT32 filesystems with less than 65525 a warning message will be
+        output.
+    
+    Macro MSDOS_FAT12 is now replaced by FAT12_THRESHOLD to make it
+    consistent with the definition in mkdosfs and to remove the dependency
+    on the kernel version.
+
+commit b9c13d143c420a3ec6e1dcb652cafa407621e9c7
+Author: Dann Frazier <dannf@hp.com>
+Date:   Tue Sep 30 07:25:19 2008 +0200
+
+    Changing some wording to make the indended meaning of "full-disk device"
+    more obvious.
+
+commit 4df18ad463f41ae368c3c51bfb5a033072605663
+Author: Daniel Baumann <daniel@debian.org>
+Date:   Sun Sep 28 11:43:19 2008 +0200
+
+    Releasing upstream version 3.0.0.
+
+commit 17fbf2a6dc9255a6bb832472ae7cda674b55e961
+Author: Daniel Baumann <daniel@debian.org>
+Date:   Sun Sep 28 11:29:01 2008 +0200
+
+    Adding GPL headers to all files.
+
+commit d2039e12c8d53472411c91eb8e7a7c0544e13d6d
+Author: Daniel Baumann <daniel@debian.org>
+Date:   Sun Sep 28 10:51:55 2008 +0200
+
+    Adding new GPL license file.
+
+commit e4e457f4b57090ecf0539f48dc682ab9afd14ab8
+Author: Daniel Baumann <daniel@debian.org>
+Date:   Fri Sep 26 23:31:12 2008 +0200
+
+    Redoing Makefile from scratch.
+
+commit 216568ca3a01ed38962b22c7bf838d15d5a4d98d
+Author: Daniel Baumann <daniel@debian.org>
+Date:   Sat Sep 27 00:17:38 2008 +0200
+
+    Removing whitespaces in all files at EOL and EOF.
+
+commit f59157e06561c525605279145057361afa721042
+Author: Daniel Baumann <daniel@debian.org>
+Date:   Fri Sep 26 23:48:56 2008 +0200
+
+    Adding Debians dosfslabel.8 manpage from Francois Wendling
+    <frwendling@free.fr>.
+
+commit c1bacab212d2b7f6ea93914976cb60056ff8276d
+Author: Daniel Baumann <daniel@debian.org>
+Date:   Fri Sep 26 18:36:04 2008 +0200
+
+    Updating version.h includes to new location of version.h file.
+
+commit 1dae9f522062037d3539cadf344e0359c644171f
+Author: Daniel Baumann <daniel@debian.org>
+Date:   Fri Sep 26 18:19:36 2008 +0200
+
+    Removing old lsm file.
+
+commit d843bec0b987f5582fe048f70e42df18c34d3ae4
+Author: Daniel Baumann <daniel@debian.org>
+Date:   Fri Sep 26 18:07:47 2008 +0200
+
+    Removing old cvsignore files.
+
+commit 77fddbc03016752286b26913c62b98f86ee63211
+Author: Daniel Baumann <daniel@debian.org>
+Date:   Fri Sep 26 18:18:39 2008 +0200
+
+    Removing old build file.
+
+commit f3e7168fc9eb6f32a6c85021186d84944cefeba8
+Author: Daniel Baumann <daniel@debian.org>
+Date:   Fri Sep 26 18:19:16 2008 +0200
+
+    Removing old GPL license files.
+
+commit 68089477036e97911791516ee2167286f26ff819
+Author: Daniel Baumann <daniel@debian.org>
+Date:   Fri Sep 26 18:21:57 2008 +0200
+
+    Unifying dosfsck and mkdosfs Makefiles in common src/Makefile.
+
+commit 9432a02d6e7c38872d7b1042f1b8be1b24a57427
+Author: Daniel Baumann <daniel@debian.org>
+Date:   Fri Sep 26 18:04:02 2008 +0200
+
+    Unifying dosfsck and mkdosfs sources in common src directory.
+
+commit 0c179b9ee47174d0f34d9fc796d540012740ac01
+Author: Daniel Baumann <daniel@debian.org>
+Date:   Fri Sep 26 18:05:27 2008 +0200
+
+    Unifying dosfsck and mkdosfs manpages in common man directory.
+
+commit 2d246c28ba6cfd43be2e44b11283891d922f352b
+Author: Daniel Baumann <daniel@debian.org>
+Date:   Fri Sep 26 18:12:29 2008 +0200
+
+    Unifying dosfsck and mkdosfs documents in common doc directory.
+
+commit e5b16990515d0214fd103dd8aa22ff6a3cda4b64
+Author: Daniel Baumann <daniel@debian.org>
+Date:   Fri Sep 26 15:39:51 2008 +0200
+
+    Applying Gentoos dosfstools-2.11-preen.patch from Roy Marples
+    <uberlord@gentoo.org> to alias dosfsck -p to -a:
+    
+      * Map -p to -a for baselayout-2, #177514.
+
+commit 6a1d974251a9f9a142775ace3a8048149abfa90c
+Author: Daniel Baumann <daniel@debian.org>
+Date:   Fri Sep 26 15:49:43 2008 +0200
+
+    Applying Gentoos dosfstools-2.11-build.patch from Mike Frysinger
+    <vapier@gentoo.org> to improve Makefile:
+    
+      * Respect user settings #157785/#157786 by Diego Petteno.
+
+commit 1ea49f00e61b554dc833d44e1a3617e923be667e
+Author: Daniel Baumann <daniel@debian.org>
+Date:   Fri Sep 26 15:37:34 2008 +0200
+
+    Applying Gentoos dosfstools-2.11-verify-double-count-fix.patch from
+    Robin H. Johnson <robbat2@gentoo.org> to fix double count of files
+    during verification:
+    
+      * Don't double-count n_files during a verification pass.
+        Bugzilla: http://bugs.gentoo.org/show_bug.cgi?id=99845
+
+commit 2d2f20b2c495fa620c7bb3ec5a0838b08f65ab05
+Author: Daniel Baumann <daniel@debian.org>
+Date:   Fri Sep 26 15:33:36 2008 +0200
+
+    Applying Gentoos dosfstools-2.11-fat32size.patch from Mike Frysinger
+    <vapier@gentoo.org> to fix generation of filesystems on 256meg devices:
+    
+      * Fix generation of FAT filesystems on devices that are 256meg in size
+        Patch by Ulrich Mueller and accepted upstream
+        http://bugs.gentoo.org/112504
+
+commit a86564a9317b2bf9f7734feacdce794f20af74a7
+Author: Daniel Baumann <daniel@debian.org>
+Date:   Fri Sep 26 15:22:06 2008 +0200
+
+    Applying Suses dosfstools-2.11-unsupported-sector-size.patch from Petr
+    Gajdos <pgajdos@suse.cz> to add sector size warning:
+    
+      * added warning for creation msdos on filesystem with sector size
+        greater than 4096 [fate#303325]
+
+commit 8171e51f4e02bd9f92bb515ca7896d3cb1b564b5
+Author: Daniel Baumann <daniel@debian.org>
+Date:   Fri Sep 26 15:18:35 2008 +0200
+
+    Applying Suses dosfstools-2.11-mkdosfs-geo0.diff from Ludwig Nussel
+    <lnussel@suse.de> to fix handling of zero heads and sectors:
+    
+      * the HDIO_GETGEO ioctl works on device mapper devices but returns
+        zero heads and sectors. Therefore let's a) assume dummy values in
+        that case in mkdosfs and b) don't consider such fat file systems as
+        invalid in dosfsck. The Linux kernel accepts them anyways.
+
+commit db887df619f4e995db0ab112334f31464a03fa0e
+Author: Daniel Baumann <daniel@debian.org>
+Date:   Fri Sep 26 15:15:40 2008 +0200
+
+    Applying Suses dosfstools-2.11-linuxfs.patch from Ruediger Oertel
+    <ro@suse.de> to not include linux/fs.h.
+
+commit 7fe3fa643494b26962d542fac38d988ac60f8c09
+Author: Daniel Baumann <daniel@debian.org>
+Date:   Fri Sep 26 15:11:50 2008 +0200
+
+    Applying Fedoras dosfstools-2.11-assumeKernel26.patch from Peter Vrabec
+    <pvrabec@redhat.com> to remove linux 2.6 conditionals:
+    
+      * LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 0) does not work with
+        glibc-kernheaders-2.4-9.1.94
+
+commit 90c1c93c100722a03e48be51b1312fe65c1cb156
+Author: Daniel Baumann <daniel@debian.org>
+Date:   Fri Sep 26 15:05:00 2008 +0200
+
+    Applying Debians 99-conglomeration.dpatch (no other information
+    available).
+
+commit bb6541bf4735e3a7f1c71b4722c6d03bb4549eea
+Author: Daniel Baumann <daniel@debian.org>
+Date:   Fri Sep 26 14:26:41 2008 +0200
+
+    Applying Debians 15-manpage-files.dpatch from Daniel Baumann
+    <daniel@debian.org> to improve dosfsck manpage:
+    
+      * Lists fsckNNNN.rec files in FILES section (Closes: #444596).
+
+commit 49282165866be19d3bc54a3f4bdee2cf3a63ba6c
+Author: Daniel Baumann <daniel@debian.org>
+Date:   Fri Sep 26 14:34:42 2008 +0200
+
+    Applying Debians 13-getopt.dpatch from Adonikam Virgo
+    <adonikam@virgonet.org> to fix mkdosfs getopt:
+    
+      * Fixes backup sector getopt (Closes: #232387, #479794).
+
+commit c32e44b85f4eac6f6a94bd620eea4abba257042a
+Author: Daniel Baumann <daniel@debian.org>
+Date:   Fri Sep 26 14:34:17 2008 +0200
+
+    Applying Debians 12-zero-slot.dpatch by Karl Tomlinson
+    <karlt@karlt.net> to fix dosfsck zero slot crashes:
+    
+      * Fixes crashes due to zero slot numbers causing a negative offset in
+        the call to copy_lfn_part in lfn_add_slot. On amd64 this results in
+        a SIGSEGV in copy_lfn_part. On x86 the result is heap corruption
+        and thus sometimes a SIGSEGV or double free abort later. (Closes:
+        #152550, #353198, #356377, #401798).
+
+commit 370847af533e628aa9e38710e6d50af09f2b71ba
+Author: Daniel Baumann <daniel@debian.org>
+Date:   Fri Sep 26 14:33:54 2008 +0200
+
+    Applying Debians 11-memory-efficiency.dpatch from Eero Tamminen
+    <eero.tamminen@nokia.com> to improve dosfsck memory efficiency:
+    
+      * Improves memory efficiency when checking filesystems.
+
+commit 28da9f286a52acec7df7ad06cb0679e5f828e7f3
+Author: Daniel Baumann <daniel@debian.org>
+Date:   Fri Sep 26 14:33:28 2008 +0200
+
+    Applying Debians 10-manpage-synopsis.dpatch from Daniel Baumann
+    <daniel@debian.org> to fix manpage synopsis:
+    
+      * List alternative binary names in manpage synopsis (Closes: #284983).
+
+commit f253073021551c9b58d0f2ac262deb3c1b950b06
+Author: Daniel Baumann <daniel@debian.org>
+Date:   Fri Sep 26 14:32:46 2008 +0200
+
+    Applying Debians 09-manpage-fat32.dpatch from Daniel Baumann
+    <daniel@debian.org> to improve mkdosfs manpage:
+    
+      * Don't claim that FAT32 is not choosed automatically (Closes:
+        #414183).
+
+commit f37c07aec3972cfc0db374d544ee3b27c0b4b20b
+Author: Daniel Baumann <daniel@debian.org>
+Date:   Fri Sep 26 14:32:23 2008 +0200
+
+    Applying Debians 08-manpage-drop.dpatch from Daniel Baumann
+    <daniel@debian.org> to improve dosfsck manpage:
+    
+      * Don't use confusing word 'drop' when 'delete' is meant (Closes:
+        #134100).
+
+commit 3f970c65586da2f44d2a49b639e89341bbaf1fba
+Author: Daniel Baumann <daniel@debian.org>
+Date:   Fri Sep 26 14:31:50 2008 +0200
+
+    Applying Debians 07-manpage-spelling.dpatch from Justin Pryzby
+    <justinpryzby@users.sourceforge.net> to fix mkdosfs manpage typos.
+
+commit 18678ba5f3a10c2a54ffee735651d7a265ae7d54
+Author: Daniel Baumann <daniel@debian.org>
+Date:   Fri Sep 26 14:30:31 2008 +0200
+
+    Applying Suses dosfstools-2.11_determine-sector-size.patch from Petr
+    Gajdos <pgajdos@suse.cz> to determine mkdosfs sector size automatically:
+    
+      * determine sector size of device automatically or if -S parameter
+        present, verify, that it's not under physical sector size
+
+commit 29753931b078856d78f473cfb6273e111a26891e
+Author: Daniel Baumann <daniel@debian.org>
+Date:   Fri Sep 26 14:30:03 2008 +0200
+
+    Applying Suses dosfstools-2.11-o_excl.patch from Pavol Rusnak
+    <prusnak@suse.cz> to use O_EXCL in mkdosfs:
+    
+      * mkdosfs now opens device with O_EXCL [#238687]
+
+commit 16bb7b09ad9eaf0fe37a732cabcdbdf975b77d3e
+Author: Daniel Baumann <daniel@debian.org>
+Date:   Fri Sep 26 14:29:36 2008 +0200
+
+    Applying Debians 04-unaligned-memory.dpatch from Khalid Aziz
+    <khalid_aziz@hp.com> to fix dosfsck unaligned memory accesses:
+    
+      * Fix unaligned memory accesses which cause warnings to appear
+        everytime the elilo bootloader script runs. This has led a number
+        of users to believe their install has failed (Closes: #258839).
+
+commit 1298cc8f37eaa27ca542b8b7186ea5a47a63cd7e
+Author: Daniel Baumann <daniel@debian.org>
+Date:   Fri Sep 26 13:47:40 2008 +0200
+
+    Applying Fedoras dosfstools-2.11-label.patch from Jeremy Katz
+    <katzj@redhat.com> to add dosfslabel (originally by Peter Jones).
+
+commit d23890e1d89770d6d2ba58362c2fc4ebafbde15c
+Author: Daniel Baumann <daniel@debian.org>
+Date:   Fri Sep 26 13:41:14 2008 +0200
+
+    Applying Fedoras dosfstools-2.11-fortify.patch from Jakub Jelinek
+    <jakub@redhat.com> to make it build with -D_FORTIFY_SOURCE=2:
+    
+      * This violates -D_FORTIFY_SOURCE=2 (which is stricter than C
+        standard), but isn't actually any buffer overflow. But using memcpy
+        is more efficient anyway.
+
+commit 7dbd82000e59246c1c2f8c280c4491259e10a767
+Author: Daniel Baumann <daniel@debian.org>
+Date:   Fri Sep 26 13:40:47 2008 +0200
+
+    Applying Fedoras dosfstools-2.7-argfix.patch (no other information
+    available).
+
+commit 88f3b3139c72ac11cb3dd3f5afa8dbb2198a8de5
+Author: Daniel Baumann <daniel@debian.org>
+Date:   Thu Jun 26 12:45:36 2008 +0200
+
+    Adding upstream version 2.11.
diff --git a/Makefile b/Makefile
new file mode 100644
index 0000000..148b53a
--- /dev/null
+++ b/Makefile
@@ -0,0 +1,112 @@
+# Makefile
+#
+# Copyright (C) 2008 Daniel Baumann <daniel@debian.org>
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program. If not, see <http://www.gnu.org/licenses/>.
+#
+# On Debian systems, the complete text of the GNU General Public License
+# can be found in /usr/share/common-licenses/GPL-3 file.
+
+DESTDIR =
+PREFIX = /usr/local
+SBINDIR = $(PREFIX)/sbin
+DOCDIR = $(PREFIX)/share/doc
+MANDIR = $(PREFIX)/share/man
+
+#OPTFLAGS = -O2 -fomit-frame-pointer -D_LARGEFILE_SOURCE -D_FILE_OFFSET_BITS=64
+OPTFLAGS = -O2 -fomit-frame-pointer $(shell getconf LFS_CFLAGS)
+#WARNFLAGS = -Wall -pedantic -std=c99
+WARNFLAGS = -Wall
+DEBUGFLAGS = -g
+CFLAGS += $(OPTFLAGS) $(WARNFLAGS) $(DEBUGFLAGS)
+
+VPATH = src
+
+all: build
+
+build: dosfsck dosfslabel mkdosfs
+
+dosfsck: boot.o check.o common.o fat.o file.o io.o lfn.o dosfsck.o
+
+dosfslabel: boot.o check.o common.o fat.o file.o io.o lfn.o dosfslabel.o
+
+mkdosfs: mkdosfs.o
+
+rebuild: distclean build
+
+install: install-bin install-doc install-man
+
+install-bin: build
+	install -d -m 0755 $(DESTDIR)/$(SBINDIR)
+	install -m 0755 dosfsck dosfslabel mkdosfs $(DESTDIR)/$(SBINDIR)
+
+	ln -sf dosfsck $(DESTDIR)/$(SBINDIR)/fsck.msdos
+	ln -sf dosfsck $(DESTDIR)/$(SBINDIR)/fsck.vfat
+	ln -sf mkdosfs $(DESTDIR)/$(SBINDIR)/mkfs.msdos
+	ln -sf mkdosfs $(DESTDIR)/$(SBINDIR)/mkfs.vfat
+
+install-doc:
+	install -d -m 0755 $(DESTDIR)/$(DOCDIR)/dosfstools
+	install -m 0644 doc/* $(DESTDIR)/$(DOCDIR)/dosfstools
+
+install-man:
+	install -d -m 0755 $(DESTDIR)/$(MANDIR)/man8
+	install -m 0644 man/*.8 $(DESTDIR)/$(MANDIR)/man8
+
+	ln -sf dosfsck.8 $(DESTDIR)/$(MANDIR)/man8/fsck.msdos.8
+	ln -sf dosfsck.8 $(DESTDIR)/$(MANDIR)/man8/fsck.vfat.8
+	ln -sf mkdosfs.8 $(DESTDIR)/$(MANDIR)/man8/mkfs.msdos.8
+	ln -sf mkdosfs.8 $(DESTDIR)/$(MANDIR)/man8/mkfs.vfat.8
+
+uninstall: uninstall-bin uninstall-doc uninstall-man
+
+uninstall-bin:
+	rm -f $(DESTDIR)/$(SBINDIR)/dosfsck
+	rm -f $(DESTDIR)/$(SBINDIR)/dosfslabel
+	rm -f $(DESTDIR)/$(SBINDIR)/mkdosfs
+
+	rm -f $(DESTDIR)/$(SBINDIR)/fsck.msdos
+	rm -f $(DESTDIR)/$(SBINDIR)/fsck.vfat
+	rm -f $(DESTDIR)/$(SBINDIR)/mkfs.msdos
+	rm -f $(DESTDIR)/$(SBINDIR)/mkfs.vfat
+
+	rmdir --ignore-fail-on-non-empty $(DESTDIR)/$(SBINDIR)
+
+uninstall-doc:
+	rm -rf $(DESTDIR)/$(DOCDIR)/dosfstools
+
+	rmdir --ignore-fail-on-non-empty $(DESTDIR)/$(DOCDIR)
+
+uninstall-man:
+	rm -f $(DESTDIR)/$(MANDIR)/man8/dosfsck.8
+	rm -f $(DESTDIR)/$(MANDIR)/man8/dosfslabel.8
+	rm -f $(DESTDIR)/$(MANDIR)/man8/mkdosfs.8
+
+	rm -f $(DESTDIR)/$(MANDIR)/man8/fsck.msdos.8
+	rm -f $(DESTDIR)/$(MANDIR)/man8/fsck.vfat.8
+	rm -f $(DESTDIR)/$(MANDIR)/man8/mkfs.msdos.8
+	rm -f $(DESTDIR)/$(MANDIR)/man8/mkfs.vfat.8
+
+	rmdir --ignore-fail-on-non-empty $(DESTDIR)/$(MANDIR)/man8
+	rmdir --ignore-fail-on-non-empty $(DESTDIR)/$(MANDIR)
+
+reinstall: distclean install
+
+clean:
+	rm -f *.o
+
+distclean: clean
+	rm -f dosfsck dosfslabel mkdosfs
+
+.PHONY: build rebuild install install-bin install-doc install-man uninstall uninstall-bin uninstall-doc uninstall-man reinstall clean distclean
diff --git a/NOTICE b/NOTICE
new file mode 100644
index 0000000..94a9ed0
--- /dev/null
+++ b/NOTICE
@@ -0,0 +1,674 @@
+                    GNU GENERAL PUBLIC LICENSE
+                       Version 3, 29 June 2007
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+  IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
+WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS
+THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY
+GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE
+USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF
+DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD
+PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS),
+EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF
+SUCH DAMAGES.
+
+  17. Interpretation of Sections 15 and 16.
+
+  If the disclaimer of warranty and limitation of liability provided
+above cannot be given local legal effect according to their terms,
+reviewing courts shall apply local law that most closely approximates
+an absolute waiver of all civil liability in connection with the
+Program, unless a warranty or assumption of liability accompanies a
+copy of the Program in return for a fee.
+
+                     END OF TERMS AND CONDITIONS
+
+            How to Apply These Terms to Your New Programs
+
+  If you develop a new program, and you want it to be of the greatest
+possible use to the public, the best way to achieve this is to make it
+free software which everyone can redistribute and change under these terms.
+
+  To do so, attach the following notices to the program.  It is safest
+to attach them to the start of each source file to most effectively
+state the exclusion of warranty; and each file should have at least
+the "copyright" line and a pointer to where the full notice is found.
+
+    <one line to give the program's name and a brief idea of what it does.>
+    Copyright (C) <year>  <name of author>
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+Also add information on how to contact you by electronic and paper mail.
+
+  If the program does terminal interaction, make it output a short
+notice like this when it starts in an interactive mode:
+
+    <program>  Copyright (C) <year>  <name of author>
+    This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
+    This is free software, and you are welcome to redistribute it
+    under certain conditions; type `show c' for details.
+
+The hypothetical commands `show w' and `show c' should show the appropriate
+parts of the General Public License.  Of course, your program's commands
+might be different; for a GUI interface, you would use an "about box".
+
+  You should also get your employer (if you work as a programmer) or school,
+if any, to sign a "copyright disclaimer" for the program, if necessary.
+For more information on this, and how to apply and follow the GNU GPL, see
+<http://www.gnu.org/licenses/>.
+
+  The GNU General Public License does not permit incorporating your program
+into proprietary programs.  If your program is a subroutine library, you
+may consider it more useful to permit linking proprietary applications with
+the library.  If this is what you want to do, use the GNU Lesser General
+Public License instead of this License.  But first, please read
+<http://www.gnu.org/philosophy/why-not-lgpl.html>.
diff --git a/debian/changelog b/debian/changelog
new file mode 100644
index 0000000..0aa9676
--- /dev/null
+++ b/debian/changelog
@@ -0,0 +1,427 @@
+dosfstools (3.0.1-1) unstable; urgency=low
+
+  * Replacing obsolete dh_clean -k with dh_prep.
+  * Merging upstream version 3.0.1:
+    - Changing some wording to make the indended meaning of "full-disk device"
+      more obvious (Closes: #500623).
+
+ -- Daniel Baumann <daniel@debian.org>  Sun, 23 Nov 2008 22:51:46 +0100
+
+dosfstools (3.0.0-1) unstable; urgency=low
+
+  * Merging upstream version 3.0.0.
+  * Updating homepage field in control.
+  * Updating upstream information in copyright file.
+  * Removing now useless lintian override.
+  * Removing now useless manpage.
+  * Removing now useless patches.
+  * Removing now useless docs.
+  * Updating rules to for new upstream.
+
+ -- Daniel Baumann <daniel@debian.org>  Sun, 28 Sep 2008 11:56:00 +0200
+
+dosfstools (2.11-8) unstable; urgency=low
+
+  * Adding debug package.
+
+ -- Daniel Baumann <daniel@debian.org>  Sat, 20 Sep 2008 21:52:00 +0200
+
+dosfstools (2.11-7) unstable; urgency=low
+
+  * Adding manpage for dosfslabel, thanks to Francois Wendling
+    <frwendling@free.fr> (Closes: #496760).
+  * Updating vcs fields in control file.
+  * Using patch-stamp rather than patch in rules file.
+
+ -- Daniel Baumann <daniel@debian.org>  Sat, 20 Sep 2008 21:48:00 +0200
+
+dosfstools (2.11-6) unstable; urgency=high
+
+  * Temporarily disabling bootcode.dpatch since it breaks syslinux,
+    thanks to Joey Hess <joeyh@debian.org> (Closes: #489292).
+
+ -- Daniel Baumann <daniel@debian.org>  Fri,  4 Jul 2008 20:28:00 +0200
+
+dosfstools (2.11-5) unstable; urgency=medium
+
+  * Adding patch to mention fsckNNNN.rec files in dosfsck manpage
+    (Closes: #444596).
+  * Adding patch from Sam Bingner <sam@bingner.com> to add option for using a
+    bootcode template (Closes: #303442).
+  * Adding patch from Adonikam Virgo <adonikam@virgonet.org> to fix backup
+    sector getopt (Closes: #232387, #479794).
+  * Adding patch from Karl Tomlinson <karlt@karlt.net> to fix segfaults with
+    zero slots in lfn (Closes: #152550, #353198, #356377, #401798).
+  * Rediffing 99-conglomeration.dpatch.
+  * Adding patch from Eero Tamminen <eero.tamminen@nokia.com> to improve memory
+    efficiencey when checking filesystems.
+  * Adding patch to list alternative binary names in manpage synopsis
+    (Closes: #284983).
+  * Adding patch to not deny FAT32 auto-selection in mkdosfs manpage
+    (Closes: #414183).
+  * Adding patch to not use confusing 'drop' in dosfsck manpage where 'delete'
+    in dosfsck manpage where 'delete' is meant (Closes: #134100).
+  * Listing alternative binary names in long-description (Closes: #434381).
+  * Updating manpage spelling patch to also cover wrong acknowledge header
+    (Closes: #306659).
+  * Breaking out manpage typos patch.
+
+ -- Daniel Baumann <daniel@debian.org>  Fri, 27 Jun 2008 09:03:00 +0200
+
+dosfstools (2.11-4) unstable; urgency=low
+
+  * Redone debian packaging from scratch.
+  * Both stop avoiding -O2 and stop adding -fno-strict-aliasing to OPTFLAGS on
+    alpha; seems not to be required anymore.
+  * Added patch from Jakub Jelinek <jakub@redhat.com> to support
+    -D_FORTIFY_SOURCE=2 (for future use).
+  * Added patch from Jeremy Katz <katzj@redhat.com> to add dosfslabel
+    (originally by Peter Jones).
+  * Added patch from Pavol Rusnak <prusnak@suse.cz> to use O_EXCL in mkdosfs.
+  * Added patch from Petr Gajdos <pgajdos@suse.cz> to automatically determine
+    sector size of the device.
+
+ -- Daniel Baumann <daniel@debian.org>  Thu, 26 Jun 2008 13:13:00 +0200
+
+dosfstools (2.11-3) unstable; urgency=low
+
+  * New maintainer (Closes: #488018).
+
+ -- Daniel Baumann <daniel@debian.org>  Thu, 26 Jun 2008 12:31:00 +0200
+
+dosfstools (2.11-2.3) unstable; urgency=low
+
+  * NMU
+  * dpkg --print-gnu-build-architecture is gone, use dpkg-architecture
+    instead. Closes: #407192
+  * Fixed errors in the mkdosfs manpage that could cause confusion to
+    readers, Thanks to Onno Benschop. Closes: #433561 (LP: #126121)
+
+ -- Joey Hess <joeyh@debian.org>  Mon, 10 Sep 2007 15:57:36 -0400
+
+dosfstools (2.11-2.2) unstable; urgency=low
+
+  * Non-maintainer upload.
+  * Apply Ubuntu patches. Closes: #417673
+
+ -- Andreas Barth <aba@not.so.argh.org>  Sat,  9 Jun 2007 21:18:21 +0000
+
+dosfstools (2.11-2.1) unstable; urgency=low
+
+  * Non-maintainer upload.
+  * Fix unaligned memory accesses which cause warnings to appear everytime
+    the elilo bootloader script runs.  This has led a number of users to
+    believe their install has failed.  Thanks to Khalid Aziz for the patch.
+    Closes: #258839.
+
+ -- dann frazier <dannf@debian.org>  Thu,  9 Jun 2005 18:14:45 -0600
+
+dosfstools (2.11-2) unstable; urgency=low
+
+  * Oops, debian/rules overrides OPTFLAGS and therefore the
+    -D_FILE_OFFSET_BITS=64 in the toplevel Makefile had no effect; added
+    $(shell getconf LFS_CFLAGS) to OPTFLAGS as suggested by Lars Wirzenius in
+    #300126. Sorry, I tested a version compiled by the upstream Makefile...
+    Closes: #300126, #301254.
+  * #302517 was indeed the same as #294177, and fix is the same (use __u8) as
+    in 2.11-1. Closes: #302517.
+
+ -- Roman Hodek <roman@hodek.net>  Sun,  3 Apr 2005 13:56:55 +0200
+
+dosfstools (2.11-1) unstable; urgency=low
+
+  * New upstream version (Closes: #293394, #295181, #294177, #270023, #258402,
+    #232482, #214656, #286219, #276834, #266254, #128800)
+
+ -- Roman Hodek <roman@hodek.net>  Sat, 12 Mar 2005 17:19:27 +0100
+
+dosfstools (2.10-1) unstable; urgency=low
+
+  * New upstream version:
+     - dosfsck: various 64-bit fixes and removed some warnings by Michal
+       Cihar <mcihar@suse.cz>
+     - mkdosfs: better error message if called without parameters (also
+       suggested by Michal)
+  * recompilation removed errno@GLIBC_2.0 symbol; Closes: #168540
+    (probably already 2.9-1 did)
+
+ -- Roman Hodek <roman@hodek.net>  Mon, 22 Sep 2003 22:15:32 +0200
+
+dosfstools (2.9-1) unstable; urgency=low
+
+  * New upstream version:
+   (Closes: #156266, #139198, #152769, #152868, #181196)
+    - dosfsck: if EOF from stdin, exit with error code
+   	- dosfsck: Fix potential for "Internal error: next_cluster on bad cluster".
+   	- dosfsck: When clearing long file names, don't overwrite the dir
+   	  entries with all zeros, but put 0xe5 into the first byte.
+   	  Otherwise, some OSes stop reading the directory at that point...
+   	- dosfsck: in statistics printed by -v, fix 32bit overflow in number
+   	  of data bytes.
+   	- dosfsck: fix an potential overflow in "too many clusters" check
+   	- dosfsck: fix 64bit problem in fat.c (Debian bug #152769)
+   	- dosfsck: allow FAT size > 32MB.
+   	- dosfsck: allow for only one FAT
+   	- dosfsck: with -v, also check that last sector of the filesystem can
+   	  be read (in case a partition is smaller than the fs thinks)
+   	- mkdosfs: add note in manpage that creating bootable filesystems is
+   	  not supported.
+   	- mkdosfs: better error message with pointer to -I if target is a
+   	  full-disk device.
+  * debian/control: Added build dependency on debhelper (Closes: #168388)
+  * debian/control: spelling fix (Closes: #124564)
+  * debian/control: metion names of tools in description (Closes: #186047)
+
+ -- Roman Hodek <roman@hodek.net>  Thu, 15 May 2003 20:54:04 +0200
+
+dosfstools (2.8-1) unstable; urgency=low
+
+  * New upstream version fixing an endless loop.
+    (Closes: #87205, #86373, #87590)
+
+ -- Roman Hodek <roman@hodek.net>  Wed, 28 Feb 2001 17:23:16 +0100
+
+dosfstools (2.7-1) unstable; urgency=low
+
+  * New upstream version with various bug fixes. (Closes: #83883)
+  * Changed maintainer e-mail addr.
+
+ -- Roman Hodek <roman@hodek.net>  Wed, 14 Feb 2001 12:49:00 +0100
+
+dosfstools (2.6-1) unstable; urgency=low
+
+  * New upstream version with various bug fixes.
+
+ -- Roman Hodek <roman@hodek.net>  Tue, 28 Nov 2000 17:27:35 +0100
+
+dosfstools (2.5-1) unstable; urgency=low
+
+  * New upstream version fixing llseek() on alpha (Closes: #54145)
+
+ -- Roman Hodek <Roman.Hodek@informatik.uni-erlangen.de>  Fri, 7 Jan 2000 09:26:51 +0100
+
+dosfstools (2.4-1) unstable; urgency=low
+
+  * New upstream version fixing compilation problem on alpha (Closes: #48331)
+
+ -- Roman Hodek <Roman.Hodek@informatik.uni-erlangen.de>  Tue, 26 Oct 1999 09:38:39 +0200
+
+dosfstools (2.3-1) unstable; urgency=low
+
+  * New upstream version:
+     - Manpage fixes.
+     - Fixed usage message of mkdosfs.
+     - Fixed compilation on alpha (llseek).
+     - Fixed unaligned accesses on alpha (Closes: #47714)
+     - Fixed renaming of files in dosfsck (extension wasn't really
+       written). Closes: #45774
+  * Remove bashisms from debian/rules.
+  * FHS transition.
+  * On alpha, omit -O2 and add -fno-strict-aliasing to OPTFLAGS, as
+    otherwise the programs fail with unaligned traps.
+  * FHS transition (Standards-Version 3.0.1).
+
+ -- Roman Hodek <Roman.Hodek@informatik.uni-erlangen.de>  Fri, 22 Oct 1999 13:30:59 +0200
+
+dosfstools (2.2-1) unstable; urgency=low
+
+  * New upstream version. Closes: #40533
+  * Updated copyright file for new location /usr/share/common-licenses/GPL.
+  * Updated Standards-Version to 3.0.0.
+
+ -- Roman Hodek <Roman.Hodek@informatik.uni-erlangen.de>  Tue, 6 Jul 1999 16:07:22 +0200
+
+dosfstools (2.1-1) unstable; urgency=low
+
+  * New upstream version.
+  * Also installs symlinks mkfs.vfat and fsck.vfat,so that also
+    filesystems listed with type "vfat" in /etc/fstab can be automatically
+    checked.
+
+ -- Roman Hodek <Roman.Hodek@informatik.uni-erlangen.de>  Fri, 28 May 1999 11:25:17 +0200
+
+dosfstools (2.0-1) unstable; urgency=low
+
+  * I'm now upstream maintainer, too.
+  * Adapted debian/rules for new central Makefile and rewritten to
+    debhelper.
+  * Fixed harmless warnings in mkdosfs.c and fat.c.
+  * mkdosfs.c: Return type of getopt() must be stored in an int, not in a
+    char. (Showed up on powerpc, where chars are default unsigned.)
+
+ -- Roman Hodek <Roman.Hodek@informatik.uni-erlangen.de>  Fri, 30 Apr 1999 14:37:37 +0200
+
+dosfstools (1.0-16) unstable; urgency=low
+
+  * Both tools are not maintained upstreams anymore, so I take over
+    general maintainership now...
+  * Both mkdosfs and dosfsck now support the FAT32 format. dosfsck
+    automatically detects it. For mkdosfs, 32 is now a valid argument to
+    -F, but FAT32 format isn't selected automatically (yet). With FAT32,
+    you can also set the number of reserved sectors (-R) and location of
+    the boot sector backup (-b) if you like (defaults are reasonable).
+  * dosfsck can handle and check VFAT-style long filenames now. It uses
+    the long names in listing etc. when available. There are also some
+    checks on the structures of LFNs and some fixes for possible problems.
+  * Implemented Atari format in both, dosfsck and mkdosfs. Under Atari TOS
+    basically the same FAT format is used as under DOS, however, there are
+    some little differences. Both tools now automatically select Atari
+    format if they run on an Atari. You can switch between standard MS-DOS
+    and Atari format with the -A option.
+  * Applied patch by Giuliano Procida <gpp10@cus.cam.ac.uk> to add loop
+    device support to mkdosfs: Usual floppy sizes are detected and
+    parameters (media byte,...) are set up accordingly.
+    My own additions to this: Don't die on loop devices that don't have
+    such a floppy size, but use some default hd params. Added endianess
+    conversions to Giulianos patch.
+  * More/better data in boot sector dump of dosfsck -v.
+  * Fixed lots of gcc warnings in the source. Removed -Wno-parentheses flag.
+  * Made dosfsck -v a bit more verbose.
+  * Extended README's for FAT32/LFN.
+  * Written a README for Atari format differences.
+  * Some minor cleanups in debian/rules.
+  * Install README files as README.{mkdosfs,dosfsck,Atari}.gz.
+  * AFAIK the tools still have alignment problems on Alpha machines.
+    Someone wanted to send me a patch, but I haven't heard from him for
+    months...
+  * Set Standards-Version to 2.5.0.0 (no changes).
+
+ -- Roman Hodek <Roman.Hodek@informatik.uni-erlangen.de>  Wed, 28 Apr 1999 11:06:15 +0200
+
+dosfstools (1.0-15) frozen unstable; urgency=low
+
+  * Applied patch by Juan Cespedes <cespedes@debian.org> to make mkdosfs
+    work with newer 2.1 kernels again. (Fixes: #20320)
+  * Remove CC=gcc in debian/rules to make cross-compiling possible.
+
+ -- Roman Hodek <Roman.Hodek@informatik.uni-erlangen.de>  Thu, 30 Apr 1998 17:09:08 +0200
+
+dosfstools (1.0-14) frozen unstable; urgency=medium
+
+  * New maintainer
+  * Ignore long name directory slots of VFAT, instead of trying to correct
+    that "file names". Fixes: #20711
+  * Don't consider file names with chars >= 128 to be bad, they're allowed.
+
+ -- Roman Hodek <Roman.Hodek@informatik.uni-erlangen.de>  Thu, 30 Apr 1998 10:00:16 +0200
+
+dosfstools (1.0-13) stable; urgency=low
+
+  * Fixed nasty bug that caused every file with a name like xxxxxxxx.xxx
+    to be treated as bad name that needed to be fixed. (closes: Bug#17389)
+
+ -- Martin Schulze <joey@finlandia.infodrom.north.de>  Thu, 26 Feb 1998 01:14:40 +0100
+
+dosfstools (1.0-12) stable; urgency=low
+
+  * Moved executables and their links into /sbin (Bug#15037)
+  * Corrected Standards-Version to 2.3.0.1
+
+ -- Martin Schulze <joey@finlandia.infodrom.north.de>  Fri, 9 Jan 1998 21:49:48 +0100
+
+dosfstools (1.0-11) stable; urgency=low
+
+  * Applied patches to source files from Juan Cespedes which got lost in
+    the last upload (Bug#16493, Bug#16494, Bug#16490)
+  * build-stamp is now removed first in clean target (Bug#16491)
+
+ -- Martin Schulze <joey@finlandia.infodrom.north.de>  Sat, 3 Jan 1998 15:06:27 +0100
+
+dosfstools (1.0-10) stable; urgency=low
+
+  * Added links for mkfs.msdos and fsck.msdos (Bug#15037)
+  * Added links for mkfs.msdos.8 and fsck.msdos.8
+  * Corrected source location
+  * Rewrote bad_name() (Bug#9871, part 2)
+  * s/int/time_t in check.c to omit a compiler warning (Bug#9871, part 3.1)
+  * Modified defaults, interactive is the default now
+  * Fixed renaming of files, they are saved now (Bug#9871, part 1)
+  * Fixed return type of date_dos2unix (Bug#9871, part 3.2)
+
+ -- Martin Schulze <joey@finlandia.infodrom.north.de>  Wed, 31 Dec 1997 18:59:53 +0100
+
+dosfstools (1.0-9.1) unstable; urgency=low
+
+  * Non-maintainer release
+  * .diff file was wrong in 1.0-9; fixed (Bug#13102)
+  * Fixed endianess patches (fixes Bug#11648)
+  * Built with libc6
+
+ -- Juan Cespedes <cespedes@etsit.upm.es>  Thu, 23 Oct 1997 23:19:34 +0200
+
+dosfstools (1.0-9) stable; urgency=low
+
+  * Added endianess patches from Frank Neumann
+    <Frank.Neumann@Informatik.Uni-Oldenburg.DE> (Bug#9959)
+  * Updated Werner Almesbergers address
+  * Added -I switch to mkdosfs to allow full disk devices (Bug#10789)
+
+ -- Martin Schulze <joey@finlandia.infodrom.north.de>  Sun, 20 Jul 1997 14:51:33 +0200
+
+dosfstools (1.0-8) stable; urgency=low
+
+  * Fixed typo in mkdosfs.c (Bug#7396)
+
+  * New maintainer address
+
+ -- Martin Schulze <joey@infodrom.north.de>  Mon, 28 Apr 1997 12:51:13 +0200
+
+dosfstools (1.0-7) stable; urgency=low
+
+  * Minor fixes
+
+  * Converted to Standards-Version 2.1.1.2
+
+ -- Martin Schulze <joey@debian.org>  Sat, 8 Feb 1997 15:03:52 +0100
+
+Mon Jan 20 22:45:23 1997  Martin Schulze  <joey@finlandia.infodrom.north.de>
+
+	* debian.control: Corrected otherfs to otherosfs :-)
+
+Sun Jan 19 23:57:09 1997  Martin Schulze  <joey@finlandia.infodrom.north.de>
+
+	* mkdosfs.c: Removed one line printing out debug information.
+
+Wed Jan 15 00:25:02 1997  Martin Schulze  <joey@finlandia.infodrom.north.de>
+
+	* mkdosfs.c: Modified code to work properly under AXP. Thanks to
+	Matt Gundry <mjgundry@primenet.com> for contacting me and
+	providing patched sources.
+	
+Mon Jan 13 13:00:14 1997  Martin Schulze  <joey@finlandia.infodrom.north.de>
+
+	* mkdosfs.c: Added patch from Sven Rudolph <sr1@inf.tu-dresden.de>
+ 	to support creation on disk images as well.
+
+Tue Jan  7 12:04:21 1997  Martin Schulze  <joey@finlandia.infodrom.north.de>
+
+	* Moved into section 'otherfs'
+
+-- Released 1.0-4
+	
+Sun Dec 22 11:28:03 1996  Martin Schulze  <joey@finlandia.infodrom.north.de>
+
+	* debian.rules: Installed ChangeLog
+
+Wed Aug  7 19:07:15 1996  Martin Schulze  <joey@finlandia.infodrom.north.de>
+
+	* Corrected debian.rules to provide $(package)_$(revision).diff.gz
+
+Mon Aug  5 11:13:34 1996  Martin Schulze  <joey@finlandia.infodrom.north.de>
+
+	* Added Conflicts: and Provides: entries in control file to really
+	replace mkdosfs.  Thanks to Michael Meskes for reporting this bug.
+
+Thu Jul 18 22:01:34 1996  Martin Schulze  <joey@finlandia.infodrom.north.de>
+
+	* added dosfscheck to the package
+
+Wed Jul  3 00:57:23 1996  Martin Schulze  <joey@finlandia.infodrom.north.de>
+
+	* Added debian specific files
+
+	* mkdosfs.c: inserted some brackets to stop gcc from moaning
+
+	* mkdosfs.8: corrected some bold/inverse text phrases
+
+	* mkdosfs.c: initialized a variable to stop gcc from moaning
diff --git a/debian/compat b/debian/compat
new file mode 100644
index 0000000..7f8f011
--- /dev/null
+++ b/debian/compat
@@ -0,0 +1 @@
+7
diff --git a/debian/control b/debian/control
new file mode 100644
index 0000000..0c19ad0
--- /dev/null
+++ b/debian/control
@@ -0,0 +1,35 @@
+Source: dosfstools
+Section: otherosfs
+Priority: optional
+Maintainer: Daniel Baumann <daniel@debian.org>
+Build-Depends: debhelper (>= 7)
+Standards-Version: 3.8.0
+Homepage: http://www.daniel-baumann.ch/software/dosfstools/
+Vcs-Browser: http://git.debian.net/?p=debian/dosfstools.git
+Vcs-Git: git://git.debian.net/git/debian/dosfstools.git
+
+Package: dosfstools
+Architecture: any
+Depends: ${shlibs:Depends}, ${misc:Depends}
+Description: utilities for making and checking MS-DOS FAT filesystems
+ The dosfstools package includes the mkdosfs (aka mkfs.dos and mkfs.vfat) and
+ dosfsck (aka fsck.msdos and fsck.vfat) utilities, which respectively make and
+ check MS-DOS FAT filesystems on hard drives or on floppies.
+ .
+ This version uses the enhanced boot sector/superblock format of DOS 3.3+ as
+ well as provides a default dummy boot sector code.
+
+Package: dosfstools-dbg
+Section: devel
+Priority: extra
+Architecture: any
+Depends: dosfstools (= ${binary:Version})
+Description: utilities for making and checking MS-DOS FAT filesystems (debug)
+ The dosfstools package includes the mkdosfs (aka mkfs.dos and mkfs.vfat) and
+ dosfsck (aka fsck.msdos and fsck.vfat) utilities, which respectively make and
+ check MS-DOS FAT filesystems on hard drives or on floppies.
+ .
+ This version uses the enhanced boot sector/superblock format of DOS 3.3+ as
+ well as provides a default dummy boot sector code.
+ .
+ This package contains the debugging symbols.
diff --git a/debian/copyright b/debian/copyright
new file mode 100644
index 0000000..ad967ff
--- /dev/null
+++ b/debian/copyright
@@ -0,0 +1,88 @@
+Author: Daniel Baumann <daniel@debian.org>
+Download: http://www.daniel-baumann.ch/software/dosfstools/
+
+Files: *
+Copyright: (C) 1999-2005 Roman Hodek <Roman.Hodek@informatik.uni-erlangen.de>
+License: GPL-2+
+ This program is free software; you can redistribute it and/or
+ modify it under the terms of the GNU General Public License
+ as published by the Free Software Foundation; either version 2
+ of the License, or (at your option) any later version.
+ .
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+ .
+ You should have received a copy of the GNU General Public License
+ along with this program; if not, write to the Free Software
+ Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ .
+ On Debian systems, the complete text of the GNU General Public License
+ can be found in /usr/share/common-licenses/GPL-2 file.
+
+Files: dosfsck/*
+Copyright:
+ (C) 1999-2005 Werner Almesberger <werner.almesberger@lrc.di.epfl.ch>
+ (C) 1999-2005 Roman Hodek <Roman.Hodek@informatik.uni-erlangen.de>
+License: GPL-2+
+ This program is free software; you can redistribute it and/or
+ modify it under the terms of the GNU General Public License
+ as published by the Free Software Foundation; either version 2
+ of the License, or (at your option) any later version.
+ .
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+ .
+ You should have received a copy of the GNU General Public License
+ along with this program; if not, write to the Free Software
+ Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ .
+ On Debian systems, the complete text of the GNU General Public License
+ can be found in /usr/share/common-licenses/GPL-2 file.
+
+Files: mkdosfs/*
+Copyright:
+ (C) 1993-1994 David Hudson <dave@humbug.demon.co.uk>
+ (C) 1991 Linus Torvalds <torvalds@klaava.helsinki.fi>
+ (C) 1992-1993 Remy Card <card@masi.ibp.fr>
+ (C) 1999-2005 Roman Hodek <Roman.Hodek@informatik.uni-erlangen.de>
+License: GPL-2+
+ This program is free software; you can redistribute it and/or
+ modify it under the terms of the GNU General Public License
+ as published by the Free Software Foundation; either version 2
+ of the License, or (at your option) any later version.
+ .
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+ .
+ You should have received a copy of the GNU General Public License
+ along with this program; if not, write to the Free Software
+ Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ .
+ On Debian systems, the complete text of the GNU General Public License
+ can be found in /usr/share/common-licenses/GPL-2 file.
+
+Files: debian/*
+Copyright: (C) 2008 Daniel Baumann <daniel@debian.org>
+License: GPL-2+
+ This program is free software; you can redistribute it and/or
+ modify it under the terms of the GNU General Public License
+ as published by the Free Software Foundation; either version 2
+ of the License, or (at your option) any later version.
+ .
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+ .
+ You should have received a copy of the GNU General Public License
+ along with this program; if not, write to the Free Software
+ Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ .
+ On Debian systems, the complete text of the GNU General Public License
+ can be found in /usr/share/common-licenses/GPL-2 file.
diff --git a/debian/doc/HISTORY b/debian/doc/HISTORY
new file mode 100644
index 0000000..1b769bd
--- /dev/null
+++ b/debian/doc/HISTORY
@@ -0,0 +1,20 @@
+This package was put together by Martin Schulze <joey@infodrom.north.de>, from
+sources obtained from:
+  sunsite.unc.edu:/pub/Linux/system/filesystems/dosfs/mkdosfs-ygg-0.3b.lsm
+  sunsite.unc.edu:/pub/Linux/system/filesystems/dosfs/mkdosfs-ygg-0.3b.tar.gz
+  sunsite.unc.edu:/pub/Linux/system/filesystems/dosfs/dosfsck.1.tar.z
+
+Mkdosfs is copyrighted by Dave Hudson <dave@humbug.demon.co.uk>, and was later
+maintained and improved by H. Peter Anvin <hpa@yggdrasil.com>. Dave has put the
+whole package under the GPL.
+
+Dosfsck is copyrighted by Werner Almesberger <werner.almesberger@lrc.di.epfl.ch>
+and Roman Hodek. We both together put the package under the GPL.
+
+The FAT32, LFN, and Atari format additions are copyrighted by Roman Hodek
+<Roman.Hodek@informatik.uni-erlangen.de> and are under the GPL, too.
+
+Both tools (mkdosfs and dosfsck) have been unmaintained since some time, so I
+also took them over as upstream maintainer. The merged package is named
+dosfstools-2.0, and its home site is now
+  ftp.uni-erlangen.de:/pub/Linux/LOCAL/dosfstools
diff --git a/debian/docs b/debian/docs
new file mode 100644
index 0000000..5ec07b2
--- /dev/null
+++ b/debian/docs
@@ -0,0 +1 @@
+debian/doc/*
diff --git a/debian/patches/14-bootcode.dpatch b/debian/patches/14-bootcode.dpatch
new file mode 100644
index 0000000..2d58349
--- /dev/null
+++ b/debian/patches/14-bootcode.dpatch
@@ -0,0 +1,235 @@
+#!/bin/sh /usr/share/dpatch/dpatch-run
+## 14-bootcode.dpatch by Sam Bingner <sam@bingner.com>
+##
+## DP: Adds option for using a bootcode template (Closes: #303442).
+
+@DPATCH@
+
+diff -Naurp dosfstools.orig/mkdosfs/ChangeLog dosfstools/mkdosfs/ChangeLog
+--- dosfstools.orig/mkdosfs/ChangeLog	2008-06-27 05:37:31.000000000 +0000
++++ dosfstools/mkdosfs/ChangeLog	2008-06-27 06:44:05.000000000 +0000
+@@ -1,3 +1,14 @@
++19th June 2003			Sam Bingner (sam@bingner.com)
++
++	Added option to read in bootcode from a file so that if you have
++	for example Windows 2000 boot code, you can have it write that
++	as the bootcode.  This is a dump of the behinning of a partition
++	generally 512 bytes, but can be up to reserved sectors*512 bytes.
++	Also writes 0x80 as the BIOS drive number if we are formatting a
++	hard drive, and sets the number of hidden sectors to be the
++	number of sectors in one track. These were required so that DOS
++	could boot using the bootcode.
++
+ 28th January 1995		H. Peter Anvin (hpa@yggdrasil.com)
+ 
+ 	Better algorithm to select cluster sizes on large filesystems.
+diff -Naurp dosfstools.orig/mkdosfs/mkdosfs.8 dosfstools/mkdosfs/mkdosfs.8
+--- dosfstools.orig/mkdosfs/mkdosfs.8	2008-06-27 06:34:35.000000000 +0000
++++ dosfstools/mkdosfs/mkdosfs.8	2008-06-27 06:44:05.000000000 +0000
+@@ -44,6 +44,10 @@
+ .I message-file
+ ]
+ [
++.B \-B
++.I bootcode-file
++]
++[
+ .B \-n
+ .I volume-name
+ ]
+@@ -163,6 +167,18 @@ file must not exceed 418 bytes once line
+ carriage return-line feed combinations, and tabs have been expanded.
+ If the filename is a hyphen (-), the text is taken from standard input. 
+ .TP
++.BI \-B " bootcode-file"
++Uses boot machine code from file "file".  On any thing other than FAT32,
++this only writes the first 3 bytes, and 480 bytes from offset 3Eh.  On
++FAT32, this writes the first 3 bytes, 420 bytes from offset 5Ah to both
++primary and backup boot sectors.  Also writes all other reserved sectors
++excluding the sectors following boot sectors (usually sector 2 and 7).
++Does not require that the input file be as large as reserved_sectors*512.
++To make a FAT32 partition bootable, you will need at least the first
++13 sectors (6656 bytes).  You can also specify a partition as the argument
++to clone the boot code from that partition.
++i.e mkdosfs -B /dev/sda1 /dev/sda1
++.TP
+ .BI \-n " volume-name"
+ Sets the volume name (label) of the file system.  The volume name can
+ be up to 11 characters long.  The default is no label.
+diff -Naurp dosfstools.orig/mkdosfs/mkdosfs.c dosfstools/mkdosfs/mkdosfs.c
+--- dosfstools.orig/mkdosfs/mkdosfs.c	2008-06-27 06:34:35.000000000 +0000
++++ dosfstools/mkdosfs/mkdosfs.c	2008-06-27 06:50:19.000000000 +0000
+@@ -24,6 +24,12 @@
+    - New options -A, -S, -C
+    - Support for filesystems > 2GB
+    - FAT32 support
++
++   Fixes/additions June 2003 by Sam Bingner
++   <sam@bingner.com>:
++   - Add -B option to read in bootcode from a file
++   - Write BIOS drive number so that FS can properly boot
++   - Set number of hidden sectors before boot code to be one track
+    
+    Copying:     Copyright 1993, 1994 David Hudson (dave@humbug.demon.co.uk)
+ 
+@@ -153,6 +159,8 @@ cdiv (int a, int b)
+ #define FAT_BAD      0x0ffffff7
+ 
+ #define MSDOS_EXT_SIGN 0x29	/* extended boot sector signature */
++#define HD_DRIVE_NUMBER 0x80	/* Boot off first hard drive */
++#define FD_DRIVE_NUMBER 0x00	/* Boot off first floppy drive */
+ #define MSDOS_FAT12_SIGN "FAT12   "	/* FAT12 filesystem signature */
+ #define MSDOS_FAT16_SIGN "FAT16   "	/* FAT16 filesystem signature */
+ #define MSDOS_FAT32_SIGN "FAT32   "	/* FAT32 filesystem signature */
+@@ -175,6 +183,8 @@ cdiv (int a, int b)
+ #define BOOTCODE_SIZE		448
+ #define BOOTCODE_FAT32_SIZE	420
+ 
++#define MAX_RESERVED		0xFFFF
++
+ /* __attribute__ ((packed)) is used on all structures to make gcc ignore any
+  * alignments */
+ 
+@@ -202,7 +212,7 @@ struct msdos_boot_sector
+   __u16         fat_length;	/* sectors/FAT */
+   __u16         secs_track;	/* sectors per track */
+   __u16         heads;		/* number of heads */
+-  __u32         hidden;		/* hidden sectors (unused) */
++  __u32         hidden;		/* hidden sectors (one track) */
+   __u32         total_sect;	/* number of sectors (if sectors == 0) */
+   union {
+     struct {
+@@ -285,6 +295,8 @@ char dummy_boot_code[BOOTCODE_SIZE] =
+ 
+ /* Global variables - the root of all evil :-) - see these and weep! */
+ 
++static char *template_boot_code;	/* Variable to store a full template boot sector in */
++static int use_template = 0;
+ static char *program_name = "mkdosfs";	/* Name of the program */
+ static char *device_name = NULL;	/* Name of the device on which to create the filesystem */
+ static int atari_format = 0;	/* Use Atari variation of MS-DOS FS format */
+@@ -837,6 +849,12 @@ setup_tables (void)
+     vi->volume_id[2] = (unsigned char) ((volume_id & 0x00ff0000) >> 16);
+     vi->volume_id[3] = (unsigned char) (volume_id >> 24);
+   }
++  if (bs.media == 0xf8) {
++      vi->drive_number = HD_DRIVE_NUMBER;  /* Set bios drive number to 80h */
++  }
++  else {
++      vi->drive_number = FD_DRIVE_NUMBER;  /* Set bios drive number to 00h */
++  }
+ 
+   if (!atari_format) {
+     memcpy(vi->volume_label, volume_name, 11);
+@@ -881,7 +899,7 @@ setup_tables (void)
+     printf( "Using %d reserved sectors\n", reserved_sectors );
+   bs.fats = (char) nr_fats;
+   if (!atari_format || size_fat == 32)
+-    bs.hidden = CT_LE_L(hidden_sectors);
++    bs.hidden = bs.secs_track;
+   else {
+     /* In Atari format, hidden is a 16 bit field */
+     __u16 hidden = CT_LE_W(hidden_sectors);
+@@ -1362,6 +1380,32 @@ write_tables (void)
+    * dir area on FAT12/16, and the first cluster on FAT32. */
+   writebuf( (char *) root_dir, size_root_dir, "root directory" );
+ 
++  if (use_template == 1) {
++    /* dupe template into reserved sectors */
++    seekto( 0, "Start of partition" );
++    if (size_fat == 32) {
++      writebuf( template_boot_code, 3, "backup jmpBoot" );
++      seekto( 0x5a, "sector 1 boot area" );
++      writebuf( template_boot_code+0x5a, 420, "sector 1 boot area" );
++      seekto( 512*2, "third sector" );
++      if (backup_boot != 0) {
++        writebuf( template_boot_code+512*2, backup_boot*sector_size - 512*2, "data to backup boot" );
++	seekto( backup_boot*sector_size, "backup boot sector" );
++        writebuf( template_boot_code, 3, "backup jmpBoot" );
++	seekto( backup_boot*sector_size+0x5a, "backup boot sector boot area" );
++        writebuf( template_boot_code+0x5a, 420, "backup boot sector boot area" );
++        seekto( (backup_boot+2)*sector_size, "sector following backup code" );
++        writebuf( template_boot_code+(backup_boot+2)*sector_size, (reserved_sectors-backup_boot-2)*512, "remaining data" );
++      } else {
++        writebuf( template_boot_code+512*2, (reserved_sectors-2)*512, "remaining data" );
++      }
++    } else {
++      writebuf( template_boot_code, 3, "jmpBoot" );
++      seekto( 0x3e, "sector 1 boot area" );
++      writebuf( template_boot_code+0x3e, 448, "boot code" );
++    }
++  }
++
+   if (blank_sector) free( blank_sector );
+   if (info_sector) free( info_sector );
+   free (root_dir);   /* Free up the root directory space from setup_tables */
+@@ -1376,7 +1420,7 @@ usage (void)
+ {
+   fatal_error("\
+ Usage: mkdosfs [-A] [-c] [-C] [-v] [-I] [-l bad-block-file] [-b backup-boot-sector]\n\
+-       [-m boot-msg-file] [-n volume-name] [-i volume-id]\n\
++       [-m boot-msg-file] [-n volume-name] [-i volume-id] [-B bootcode]\n\
+        [-s sectors-per-cluster] [-S logical-sector-size] [-f number-of-FATs]\n\
+        [-h hidden-sectors] [-F fat-size] [-r root-dir-entries] [-R reserved-sectors]\n\
+        /dev/name [blocks]\n");
+@@ -1440,7 +1484,7 @@ main (int argc, char **argv)
+   printf ("%s " VERSION " (" VERSION_DATE ")\n",
+ 	   program_name);
+ 
+-  while ((c = getopt (argc, argv, "Ab:cCf:F:Ii:l:m:n:r:R:s:S:h:v")) != EOF)
++  while ((c = getopt (argc, argv, "AB:b:cCf:F:Ii:l:m:n:r:R:s:S:h:v")) != EOF)
+     /* Scan the command line for options */
+     switch (c)
+       {
+@@ -1510,6 +1554,51 @@ main (int argc, char **argv)
+ 	listfile = optarg;
+ 	break;
+ 
++      case 'B':         /* B : read in bootcode */
++        if ( strcmp(optarg, "-") )
++	  {
++	    msgfile = fopen(optarg, "r");
++	    if ( !msgfile )
++	      perror(optarg);
++	  }
++	else
++	  msgfile = stdin;
++
++	if ( msgfile )
++	  {
++            if (!(template_boot_code = malloc( MAX_RESERVED )))
++                die( "Out of memory" );
++	    /* The template boot sector including reserved must not be > 65535 */
++            use_template = 1;
++	    i = 0;
++	    do
++	      {
++		ch = getc(msgfile);
++		switch (ch)
++		  {
++		  case EOF:
++		    break;
++
++		  default:
++		    template_boot_code[i++] = ch; /* Store character */
++		    break;
++		  }
++	      }
++	    while ( ch != EOF && i < MAX_RESERVED );
++	    ch = getc(msgfile); /* find out if we're at EOF */
++
++	    /* Fill up with zeros */
++	    while( i < MAX_RESERVED )
++		template_boot_code[i++] = '\0';
++
++	    if ( ch != EOF )
++	      printf ("Warning: template too long; truncated after %d bytes\n", i);
++
++	    if ( msgfile != stdin )
++	      fclose(msgfile);
++	  }
++	break;
++
+       case 'm':		/* m : Set boot message */
+ 	if ( strcmp(optarg, "-") )
+ 	  {
diff --git a/debian/rules b/debian/rules
new file mode 100755
index 0000000..f1c4e7d
--- /dev/null
+++ b/debian/rules
@@ -0,0 +1,46 @@
+#!/usr/bin/make -f
+
+clean:
+	dh_testdir
+	dh_testroot
+	rm -f build-stamp
+
+	$(MAKE) distclean
+
+	dh_clean
+
+build: build-stamp
+build-stamp:
+	dh_testdir
+
+	$(MAKE)
+
+	touch build-stamp
+
+install: build
+	dh_testdir
+	dh_testroot
+	dh_prep
+	dh_installdirs
+
+	$(MAKE) DESTDIR=$(CURDIR)/debian/dosfstools PREFIX=/usr SBINDIR=/sbin install
+
+binary: binary-arch
+
+binary-arch: build install
+	dh_testdir
+	dh_testroot
+	dh_installchangelogs ChangeLog
+	dh_installdocs
+	dh_strip --dbg-package=dosfstools-dbg
+	dh_compress
+	dh_fixperms
+	dh_installdeb
+	dh_shlibdeps
+	dh_gencontrol
+	dh_md5sums
+	dh_builddeb
+
+binary-indep:
+
+.PHONY: clean build install binary binary-arch binary-indep
diff --git a/doc/ANNOUNCE.mkdosfs b/doc/ANNOUNCE.mkdosfs
new file mode 100644
index 0000000..1f02ea2
--- /dev/null
+++ b/doc/ANNOUNCE.mkdosfs
@@ -0,0 +1,41 @@
+Announcing the release of mkdosfs version 0.3b (Yggdrasil)
+
+It seems I didn't get the bug completely fixed in 0.3a.  Some
+borderline cases would still allocate too many sectors for the FAT.
+Again, nothing to worry about, just a nitpick -- this one would only
+in certain cases add one sector per FAT.
+
+Announcing the release of mkdosfs version 0.3a (Yggdrasil)
+
+Fixed a bug which would cause too many sectors to be reserved for the
+FAT (filesystem will still work fine, but have slightly less space
+available).
+
+Announcing the release of mkdosfs version 0.3 (Yggdrasil)
+
+This version correctly handles even very large filesystems, and
+properly supports the modern (3.3+) DOS bootsector format, including a
+message printed on boot attempts.
+
+Peter Anvin
+Yggdrasil Computing, Inc.
+hpa@yggdrasil.com
+
+			    --------------
+
+Announcing the release of mkdosfs version 0.2
+
+
+I've just uploaded mkdosfs to sunsite.unc.edu.  It works in a similar way
+to Remy Card's mke2fs, but creates an MS-DOS file system.
+
+The filename is mkdosfs-0.2.tar.gz.
+
+This second release should fix a small bug that could lead to FAT sizes that
+Linux's dosfs would accept but MS-DOS wouldn't.
+
+The archive contains a manual page, binary and source versions.
+
+
+Dave Hudson
+dave@humbug.demon.co.uk
diff --git a/doc/ChangeLog.dosfsck b/doc/ChangeLog.dosfsck
new file mode 100644
index 0000000..f628ac2
--- /dev/null
+++ b/doc/ChangeLog.dosfsck
@@ -0,0 +1,10 @@
+Changes from version 0 to 1
+===========================
+
+  - fixed an off-by-two error in check.c:check_file
+  - fixed marking clusters bad in fat.c:set_fat
+  - fat.c:reclaim_free was also reclaiming bad clusters.
+  - fixed many incorrect byte sex conversions in check.c and fat.c
+  - -t and -w now require -a or -r
+  - added option -d to drop files.
+  - added option -u to try to "undelete" non-directory files.
diff --git a/doc/ChangeLog.dosfstools-2.x b/doc/ChangeLog.dosfstools-2.x
new file mode 100644
index 0000000..7ed9efe
--- /dev/null
+++ b/doc/ChangeLog.dosfstools-2.x
@@ -0,0 +1,161 @@
+version 2.11
+============
+
+ - all: don't use own llseek() anymore, glibc lseek() does everything we need
+ - dosfsck: lfn.c: avoid segfault
+ - dosfsck: check.c, lfn.c: check for orphaned LFN slots
+ - dosfsck: check.c alloc_rootdir_entry(): set owner of newly alloced clusters
+ - dosfsck: dosfsck.h: better use <byteswap.h> for byte swapping
+ - dosfsck: io.c: added code for real DOS
+ - mkdosfs: raised FAT12_THRESHOLD from 4078 to 4085, introduced MIN_CLUST_32
+ - mkdosfs: fix loop device size
+ - mkdosfs: by default, use FAT32 on devices >= 512MB
+ - mkdosfs: fix a memory leak (blank_sector)
+ - mkdosfs: fix parsing of number of blocks on command line, so that numbers
+   >2G can be used
+ - mkdosfs: add 'b' to getopt() string so this option can be used :)
+ - mkdosfs: fix parsing of -i arg (should be unsigned)
+ - mkdosfs: change default permissions of created images (-C) to 0666 & ~umask
+ - mkdosfs: relax geometry check: if HDIO_GETGEO fails, print a warning and
+   default to H=255,S=63
+ - dosfsck: new option -n (no-op): just check non-interactively, but
+   don't write anything to filesystem
+ - A few #include changes to support compilation with linux 2.6
+   headers (thanks to Jim Gifford <jim@jg555.com>)
+ - dosfsck: remove directory entries pointing to start cluster 0, if they're
+   not "." or ".." entries that should actually point to the root dir
+   (pointed out by Thomas Winkler <twinkler@sysgo.de>)
+ - mkdosfs: new option -h to set number of hidden sectors
+   (thanks to Godwin Stewart <gstewart@spamcop.net>)
+ - all: updated my mail address everywhere...
+
+version 2.10
+============
+
+ - dosfsck: various 64-bit fixes and removed some warnings by Michal
+   Cihar <mcihar@suse.cz>
+ - mkdosfs: better error message if called without parameters (also
+   suggested by Michal)
+
+version 2.9
+===========
+
+ - dosfsck: if EOF from stdin, exit with error code
+ - dosfsck: Fix potential for "Internal error: next_cluster on bad cluster".
+ - dosfsck: When clearing long file names, don't overwrite the dir
+   entries with all zeros, but put 0xe5 into the first byte.
+   Otherwise, some OSes stop reading the directory at that point...
+ - dosfsck: in statistics printed by -v, fix 32bit overflow in number
+   of data bytes.
+ - dosfsck: fix an potential overflow in "too many clusters" check
+ - dosfsck: fix 64bit problem in fat.c (Debian bug #152769)
+ - dosfsck: allow FAT size > 32MB.
+ - dosfsck: allow for only one FAT
+ - dosfsck: with -v, also check that last sector of the filesystem can
+   be read (in case a partition is smaller than the fs thinks)
+ - mkdosfs: add note in manpage that creating bootable filesystems is
+   not supported.
+ - mkdosfs: better error message with pointer to -I if target is a
+   full-disk device.
+
+version 2.8
+===========
+
+ - dosfsck: Fixed endless loop whenever a volume label was present.
+
+version 2.7
+===========
+
+ - dosfsck: Don't check volume label for bad characters, everything
+   seems to be allowed there... Also ignore duplicate names where one of
+   them is a volume label.
+
+version 2.6
+===========
+
+ - mkdosfs: Added correct heads definition for 2.88M floppies if not
+   created via loopback.
+ - dosfsck: If boot sector and its backup are different (FAT32), offer
+   to write the backup to sector 0. (tnx to Pavel Roskin for this)
+ - For 64 bit alpha, struct bootsector in dosfsck.h must be defined
+   with __attribute__((packed)).
+ - mkdosfs now actually accepts -R option. (tnx to David Kerrawn)
+ - Fixed typo in dosfsck boot.c (recognition of boot signature in FSINFO)
+ - Various compilation fixes for 2.4 kernel headers and for ia64.
+
+version 2.5
+===========
+
+ - The llseek() implementation for alpha didn't really work; fixed it.
+
+version 2.4
+===========
+
+ - Fix compiling problem on alpha (made a silly typo...)
+
+version 2.3
+===========
+
+ - mkdosfs: Fixed usage message (printed only "bad address").
+ - both: made man pages and usage statements more consistent.
+ - both: fix llseek function for alpha.
+ - dosfsck: fix reading of unaligned fields in boot sector for alpha.
+ - dosfsck: fixed renaming of files (extension wasn't really written).
+
+version 2.2
+===========
+
+ - Added dosfsck/COPYING, putting dosfsck officially under GPL (Werner
+   and I agree that it should be GPL).
+ - mkdosfs: Allow creation of a 16 bit FAT on filesystems that are too
+   small for it if the user explicitly selected FAT16 (but a warning
+   is printed). Formerly, you got the misleading error message "make
+   the fs a bit smaller".
+ - dosfsck: new option -y as synonym for -y; for compability with
+   other fs checkers, which also accept this option.
+ - dosfsck: Now prints messages similar to e2fsck: at start version
+   and feature list; at end number of files (and directories) and
+   number of used/total clusters. This makes the printouts of *fsck at
+   boot time nicer.
+ - dosfsck: -a (auto repair) now turns on -f (salvage files), too. -a
+   should act as non-destructive as possible, so lost clusters should
+   be assigned to files. Otherwise the data in them might be
+   overwritten later.
+ - dosfsck: Don't drop a directory with lots of bad entries in
+   auto-repair mode for the same reason as above.
+ - dosfsck: avoid deleting the whole FAT32 root dir if something is
+   wrong with it (bad start cluster or the like).
+ - general: also create symlinks {mkfs,fsck}.vfat.8 to the respective
+   real man pages.
+
+version 2.1
+===========
+
+ - Fix some forgotten loff_t's for filesystems > 4GB. (Thanks to
+   <ki@kretz.co.at>).
+ - Fix typo in mkdosfs manpage.
+ - Removed inclusion of <linux/loop.h> from mkdosfs.c; it's unnecessary and
+   caused problems in some environments.
+ - Fix condition when to expect . and .. entries in a directory. (Was
+   wrong for non-FAT32 if first entry in root dir was a directory also.)
+ - Also create mkfs.vfat and fsck.vfat symlinks, so that also
+   filesystems listed with type "vfat" in /etc/fstab can be
+   automatically checked.
+
+version 2.0
+===========
+
+ - merge of mkdosfs and dosfstools in one package
+ - new maintainer: Roman Hodek <Roman.Hodek@informatik.uni-erlangen.de>
+ - FAT32 support in both mkdosfs and dosfsck
+ - VFAT (long filename) support in dosfsck
+ - Support for Atari variant of MS-DOS filesystem in both tools
+ - Working support for big-endian systems in both tools
+ - Better support for loop devices in mkdosfs: usual floppy sizes are
+   detected and media byte etc. set accordingly; if loop fs has no
+   standard floppy size, use hd params
+   (mainly by Giuliano Procida <gpp10@cus.cam.ac.uk>)
+ - Removed lots of gcc warnings
+ - Fixed some minor calculation bugs in mkdosfs.
+
+For change logs previous to 2.0, see the CHANGES files in the subdirectories.
diff --git a/doc/ChangeLog.mkdosfs b/doc/ChangeLog.mkdosfs
new file mode 100644
index 0000000..e39d9d6
--- /dev/null
+++ b/doc/ChangeLog.mkdosfs
@@ -0,0 +1,18 @@
+28th January 1995		H. Peter Anvin (hpa@yggdrasil.com)
+
+	Better algorithm to select cluster sizes on large filesystems.
+	Added bogus boot sector code that on attempts to boot prints a
+	message (which can be chosen at mkdosfs time) and lets the user
+	press any key and try again.  Corrected support for 1.2 Mb
+	floppies.  mkdosfs now generates the extended bootsector
+	(superblock) format of DOS 3.3+, with support for volume ID's and
+	volume labels (volume labels are also written to the root
+	directory, as they should).
+
+18th February 1994		Dave Hudson (dave@humbug.demon.co.uk)
+
+	Released version 0.2 - clears a bug in the FAT sizing code.
+
+1st September 1993		Dave Hudson (dave@humbug.demon.co.uk)
+
+	Released version 0.1 - ALPHA release of mkdosfs
diff --git a/doc/README.dosfsck b/doc/README.dosfsck
new file mode 100644
index 0000000..7b351aa
--- /dev/null
+++ b/doc/README.dosfsck
@@ -0,0 +1,60 @@
+dosfsck, version 1
+==================
+
+WARNING: This is ALPHA test software. Use at your own risk.
+
+dosfsck is the Linux equivalent of PC/MS-DOS' CHKDSK. It checks the
+consistency of PC/MS-DOS file systems and optionally tries to repair
+them. The tests dosfsck performs are described in the man page.
+
+dosfsck needs header files from dosfs.9 (or later) to compile.
+
+Before using dosfsck to repair a file system that contains data of any
+value, you should verify that dosfsck is able to correct all reported
+errors. (Except fatal errors and those reported as unfixable, of
+course.) In order to do this, run it with the -V option, e.g.
+
+   dosfsck -V /dev/sda1		(automatic check)
+or dosfsck -V -r /dev/sda1	(interactive check and repair)
+
+dosfsck will perform two passes: in the first pass, inconsistencies are
+detected and a list of changes to correct the problems is generated. In
+the second pass, those changes are applied whenever dosfsck reads data
+from disk. Hence no fixable errors should be reported in the second
+pass if the first pass was successful.
+
+Please notify the author if fixable errors are reported in the second
+pass.
+
+After verifying that dosfsck appears to be able to perform the desired
+operations, either confirm that you want the changes to be performed
+(if dosfsck was started with -r) or re-run dosfsck with the -a option
+(if it was started without -r).
+
+Please send bug reports, comments, flames, etc. to
+almesber@nessie.cs.id.ethz.ch  or  almesber@bernina.ethz.ch
+
+- Werner
+
+FAT32 and LFN support
+=====================
+
+I've finally implemented some of the new features of MS-DOS
+filesystems: FAT32 and long filenames.
+
+FAT32 is automatically detected and of course the different FAT
+structure is handled. (Internally many changes were needed, so 32 bit
+variables for all cluster numbers and 64 bit vars for offsets inside
+the filesystem.) New checks for FAT32 are most notably on the backup
+boot sector and the new info sector. Also the possibility that the
+root directory resides in a cluster chain (instead of in a static
+area) on FAT32 is handled.
+
+dosfscheck also knows about VFAT long filenames now. It parses those
+names and uses them in listings etc. when available. There are also
+some checks on the (cruel) structure of how LFNs are stored and some
+attempts to fix problems.
+
+- Roman <roman@hodek.net>
+
+BTW, version 2 isn't ALPHA anymore :-)
diff --git a/doc/README.dosfstools-2.x b/doc/README.dosfstools-2.x
new file mode 100644
index 0000000..5fb00ed
--- /dev/null
+++ b/doc/README.dosfstools-2.x
@@ -0,0 +1,60 @@
+
+Atari format support
+====================
+
+Both mkdosfs and dosfsck now can also handle the Atari variation of
+the MS-DOS filesystem format. The Atari format has some minor
+differences, some caused by the different machine architecture (m68k),
+some being "historic" (Atari didn't change some things that M$
+changed).
+
+Both tools automatically select Atari format if they run on an Atari.
+Additionally the -A switch toggles between Atari and MS-DOS format.
+I.e., on an Atari it selects plain DOS format, on any other machine it
+switches to Atari format.
+
+The differences are in detail:
+
+ - Atari TOS doesn't like cluster sizes != 2, so the usual solution
+   for bigger partitions was to increase the logical sector size. So
+   mkdosfs can handle sector sizes != 512 now, you can also manually
+   select it with the -S option. On filesystems larger than approx. 32
+   MB, the sector size is automatically increased (stead of the
+   cluster size) to make the filesystem fit. mkdosfs will always use 2
+   sectors per cluster (also with the floppy standard configurations),
+   except when directed otherwise on the command line.
+
+ - From the docs, all values between 0xfff8 and 0xffff in the FAT mark
+   an end-of-file. However, DOS usually uses 0xfff8 and Atari 0xffff.
+   This seems to be only an consmetic difference. At least TOS doesn't
+   complain about 0xffff EOF marks. Don't know what DOS thinks of
+   0xfff8 :-) Anyway, both tools use the EOF mark common to the
+   system (DOS/Atari).
+
+ - Something similar of the bad cluster marks: On Atari the FAT values
+   0xfff0 to 0xfff7 are used for this, under DOS only 0xfff7 (the
+   others can be normal cluster numbers, allowing 7 more clusters :-)
+   However, both systems usually mark with 0xfff7. Just dosfsck has to
+   interpret 0xfff0...0xfff7 differently.
+
+ - Some fields in the boot sector are interpreted differently. For
+   example, Atari has a disk serial number (used to aid disk change
+   detection) where DOS stores the system name; the 'hidden' field is
+   32 bit for DOS, but 16 bit for Atari, and there's no 'total_sect'
+   field; the 12/16 bit FAT decision is different: it's not based on
+   the number of clusters, but always FAT12 on floppies and FAT16 on
+   hard disks. mkdosfs nows about these differences and constructs the
+   boot sector accordingly.
+
+ - In dosfsck, the boot sector differences also have to known, to not
+   warn about things that are no error on Atari. In addition, most
+   Atari formatting tools fill the 'tracks' and 'heads' fields with 0
+   for hard disks, because they're meaningless on SCSI disks (Atari
+   has/had no IDE). Due to this, the check that they should be
+   non-zero is switched off.
+
+ - Under Atari TOS, some other characters are illegal in filenames:
+   '<', '>', '|', '"', and ':' are allowed, but all non-ASCII chars
+   (codes >= 128) are forbidden.
+
+- Roman <Roman.Hodek@informatik.uni-erlangen.de>
diff --git a/doc/README.mkdosfs b/doc/README.mkdosfs
new file mode 100644
index 0000000..ae93ada
--- /dev/null
+++ b/doc/README.mkdosfs
@@ -0,0 +1,50 @@
+mkdosfs - Make DOS file system utilty.
+
+
+I wrote this, partially to complement the dosfsck utility written by Werner
+Almesberger (who graciously gave me some pointers when I asked for some
+advice about writing this code), and also to avoid me having to boot DOS
+just to create data partitions (I use Linux to back up DOS :-) ).
+
+The code is really derived from Remy Card's mke2fs utility - I used this as a
+framework, although all of the file system specific stuff was removed and the
+DOS stuff inserted.  I believe originally mke2fs was based on Linus' mkfs
+code, hence the acknowledgements in the source code.
+
+Neither Remy nor Linus have had any involvement with mkdosfs, so if there are
+any bugs they're almost certainly "all my own work".
+
+The code has been available for ftp since 1st September 1993, and I have yet
+to receive any bug reports from users.  I don't know of any bugs, but if you
+do find a bug or have any constructive comments, please mail me!
+
+The only bug I found with version 0.1 was an obscure fault that could lead
+to an invalid (for MS-DOS, not Linux's dos fs) number of sectors used in the
+file allocation table(s).
+
+
+Dave Hudson
+dave@humbug.demon.co.uk
+
+
+FAT32 support
+=============
+
+mkdosfs now can also create filesystems in the new FAT32 format. To do
+this, give mkdosfs a "-F 32" option. FAT32 isn't selected
+automatically (yet), even if very large clusters are needed with
+FAT16. With FAT32 you have two additional options, -R to select the
+number of reserved sectors (usually 32), and -b to select the location
+of the backup boot sector (default 6). Of course such a backup is
+created, as well as the new info sector. On FAT32, the root directory
+is always created as a cluster chain. Sorry, there's no switch to
+generate an old static root dir.
+
+One bigger bug fix besides FAT32 was to reject filesystems that need a
+16 bit FAT to fit all possible clusters, but the bigger FAT needs some
+more sectors, so the total number of clusters drop below the border
+where MS-DOS expects a 12 bit FAT. So such filesystems would be FAT16,
+but interpreted as FAT32 by DOS. The fix is to reduce filesystem size
+a bit.
+
+- Roman <roman@hodek.net>
diff --git a/doc/TODO.dosfstools-2.x b/doc/TODO.dosfstools-2.x
new file mode 100644
index 0000000..dbc2de0
--- /dev/null
+++ b/doc/TODO.dosfstools-2.x
@@ -0,0 +1,14 @@
+                                                    -*- mode: indented-text -*-
+
+ - dosfsck: Better checking of file times: ctime <= mtime <= atime
+
+ - mkdosfs: If /etc/bootsect.dos (or similar) exists, use it as a
+   template for generating boot sectors. This way, you can, e.g., make
+   bootable DOS disks.
+
+   Addendum: Don't know if that's so wise... There are really many
+   variants of DOS/Windows bootcode out in the wild, and the code is
+   proprietary, too.
+
+ - dosfsck: read-only sector test (-t without -a or -r); just print
+   out errors.
diff --git a/man/dosfsck.8 b/man/dosfsck.8
new file mode 100644
index 0000000..9443543
--- /dev/null
+++ b/man/dosfsck.8
@@ -0,0 +1,147 @@
+.TH DOSFSCK 8 "December 31 1997" "Linux" "MAINTENANCE COMMANDS"
+.SH NAME
+dosfsck \- check and repair MS-DOS file systems
+.SH SYNOPSIS
+.ad l
+.B dosfsck|fsck.msdos|fsck.vfat
+.RB [ \-aAflnrtvVwy ]
+.RB [ \-d\ \fIpath\fB\ \-d\ \fI...\fB ]
+.RB [ \-u\ \fIpath\fB\ \-u\ \fI...\fB ]
+.I device
+.ad b
+.SH DESCRIPTION
+.B dosfsck
+verifies the consistency of MS-DOS file systems and optionally tries to
+repair them. The following file system problems can be corrected (in this
+order):
+.IP \-
+FAT contains invalid cluster numbers. Cluster is changed to EOF.
+.PD 0
+.IP \-
+File's cluster chain contains a loop. The loop is broken.
+.IP \-
+Bad clusters (read errors). The clusters are marked bad and they are
+removed from files owning them. This check is optional.
+.IP \-
+Directories with a large number of bad entries (probably corrupt). The
+directory can be deleted.
+.IP \-
+Files . and .. are non-directories. They can be deleted or renamed.
+.IP \-
+Directories . and .. in root directory. They are deleted.
+.IP \-
+Bad file names. They can be renamed.
+.IP \-
+Duplicate directory entries. They can be deleted or renamed.
+.IP \-
+Directories with non-zero size field. Size is set to zero.
+.IP \-
+Directory . does not point to parent directory. The start pointer is
+adjusted.
+.IP \-
+Directory .. does not point to parent of parent directory. The start pointer
+is adjusted.
+.IP \-
+Start cluster number of a file is invalid. The file is truncated.
+.IP \-
+File contains bad or free clusters. The file is truncated.
+.IP \-
+File's cluster chain is longer than indicated by the size fields. The file
+is truncated.
+.IP \-
+Two or more files share the same cluster(s). All but one of the files are
+truncated. If the file being truncated is a directory file that has already
+been read, the file system check is restarted after truncation.
+.IP \-
+File's cluster chain is shorter than indicated by the size fields. The file
+is truncated.
+.IP \-
+Clusters are marked as used but are not owned by a file. They are marked
+as free.
+.PD
+.LP
+Additionally, the following problems are detected, but not repaired:
+.IP \-
+Invalid parameters in boot sector.
+.PD 0
+.IP \-
+Absence of . and .. entries in non-root directories
+.PD
+.LP
+When \fBdosfsck\fP checks a file system, it accumulates all changes in memory
+and performs them only after all checks are complete. This can be disabled
+with the \fB\-w\fP option.
+.SH OPTIONS
+.IP \fB\-a\fP
+Automatically repair the file system. No user intervention is necessary.
+Whenever there is more than one method to solve a problem, the least
+destructive approach is used.
+.IP \fB\-A\fP
+Use Atari variation of the MS-DOS filesystem. This is default if
+\fBdosfsck\fP is run on an Atari, then this option turns off Atari
+format. There are some minor differences in Atari format: Some boot
+sector fields are interpreted slightly different, and the special FAT
+entries for end-of-file and bad cluster can be different. Under
+MS-DOS 0xfff8 is used for EOF and Atari employs 0xffff by default, but
+both systems recognize all values from 0xfff8...0xffff as end-of-file.
+MS-DOS uses only 0xfff7 for bad clusters, where on Atari values
+0xfff0...0xfff7 are for this purpose (but the standard value is still
+0xfff7).
+.IP \fB\-d\fP
+Delete the specified file. If more that one file with that name exists, the
+first one is deleted.
+.IP \fB\-f\fP
+Salvage unused cluster chains to files. By default, unused clusters are
+added to the free disk space except in auto mode (\fB-a\fP).
+.IP \fB\-l\fP
+List path names of files being processed.
+.IP \fB\-n\fP
+No-operation mode: non-interactively check for errors, but don't write
+anything to the filesystem.
+.IP \fB\-r\fP
+Interactively repair the file system. The user is asked for advice whenever
+there is more than one approach to fix an inconsistency.
+.IP \fB\-t\fP
+Mark unreadable clusters as bad.
+.IP \fB-u\fP
+Try to undelete the specified file. \fBdosfsck\fP tries to allocate a chain
+of contiguous unallocated clusters beginning with the start cluster of the
+undeleted file.
+.IP \fB\-v\fP
+Verbose mode. Generates slightly more output.
+.IP \fB\-V\fP
+Perform a verification pass. The file system check is repeated after the
+first run. The second pass should never report any fixable errors. It may
+take considerably longer than the first pass, because the first pass may
+have generated long list of modifications that have to be scanned for each
+disk read.
+.IP \fB\-w\fP
+Write changes to disk immediately.
+.IP \fB\-y\fP
+Same as \fB\-a\fP (automatically repair filesystem) for compatibility
+with other fsck tools.
+.LP
+If \fB\-a\fP and \fB\-r\fP are absent, the file system is only checked,
+but not repaired.
+.SH "EXIT STATUS"
+.IP 0
+No recoverable errors have been detected.
+.IP 1
+Recoverable errors have been detected or \fBdosfsck\fP has discovered an
+internal inconsistency.
+.IP 2
+Usage error. \fBdosfsck\fP did not access the file system.
+.SH FILES
+.IP "fsck0000.rec, fsck0001.rec, ..."
+When recovering from a corrupted file system, dosfsck dumps recovered data
+into files named 'fsckNNNN.rec' in the top level directory of the file system.
+.SH BUGS
+Does not create . and .. files where necessary. Does not remove entirely
+empty directories. Should give more diagnostic messages. Undeleting files
+should use a more sophisticated algorithm.
+.\".SH "SEE ALSO"
+.\"fs(5)
+.SH AUTHORS
+Werner Almesberger <werner.almesberger@lrc.di.epfl.ch>
+Extensions (FAT32, VFAT) by and current maintainer:
+Roman Hodek <roman@hodek.net>
diff --git a/man/dosfslabel.8 b/man/dosfslabel.8
new file mode 100644
index 0000000..0dbc136
--- /dev/null
+++ b/man/dosfslabel.8
@@ -0,0 +1,53 @@
+.TH "dosfslabel" "8" "13 August 2008"
+
+.SH "NAME"
+dosfslabel \- set or get a MS-DOS filesystem label
+
+.SH "SYNOPSIS"
+.PP
+.B dosfslabel
+.IR device \ [ label ]
+
+
+.SH "DESCRIPTION"
+.PP
+This manual page documents briefly the
+.B dosfslabel
+command.
+.PP
+.B dosfslabel
+set or gets  a MS-DOS filesystem label from a given
+.IR device .
+If
+.I label
+is omitted, then the label name of the specified
+.I device
+is written on the standard output.
+
+.I label
+can't be longer than 11 characters.
+
+.SH "OPTIONS"
+.TP
+.BR \-h , \-\-help
+Displays a help message.
+.TP
+.BR \-V , \-\-version
+Shows version.
+
+.SH "SEE ALSO"
+
+.BR mkfs.msdos (8),
+.BR mkdosfs (8)
+
+
+.SH "AUTHORS"
+.PP
+.B dosfslabel
+is Copyright 2007 Red Hat, Inc.
+.PP
+Some portions are Copyright 1998 Roman Hodek.
+.PP
+Some portions are Copyright 1993 Werner Almesberger.
+
+This manual page was written by François Wendling <frwendling@free.fr> for the Debian GNU/Linux system (but may be used by others).
diff --git a/man/mkdosfs.8 b/man/mkdosfs.8
new file mode 100644
index 0000000..bb87ce6
--- /dev/null
+++ b/man/mkdosfs.8
@@ -0,0 +1,211 @@
+.\" -*- nroff -*-
+.TH MKDOSFS 8 "5 May 1995" "Version 2.x"
+.SH NAME
+.B mkdosfs
+\- create an MS-DOS file system under Linux
+.SH SYNOPSIS
+.B mkdosfs|mkfs.msdos|mkfs.vfat
+[
+.B \-A
+]
+[
+.B \-b
+.I sector-of-backup
+]
+[
+.B \-c
+]
+[
+.B \-l
+.I filename
+]
+[
+.B \-C
+]
+[
+.B \-f
+.I number-of-FATs
+]
+[
+.B \-F
+.I FAT-size
+]
+[
+.B \-h
+.I number-of-hidden-sectors
+]
+[
+.B \-i
+.I volume-id
+]
+.RB [ " \-I " ]
+[
+.B \-m
+.I message-file
+]
+[
+.B \-n
+.I volume-name
+]
+[
+.B \-r
+.I root-dir-entries
+]
+[
+.B \-R
+.I number-of-reserved-sectors
+]
+[
+.B \-s
+.I sectors-per-cluster
+]
+[
+.B \-S
+.I logical-sector-size
+]
+[
+.B \-v
+]
+.I device
+[
+.I block-count
+]
+.SH DESCRIPTION
+.B mkdosfs
+is used to create an MS-DOS file system under Linux on a device (usually
+a disk partition).
+.I device
+is the special file corresponding to the device (e.g /dev/hdXX).
+.I block-count
+is the number of blocks on the device.  If omitted,
+.B mkdosfs
+automatically determines the file system size.
+.SH OPTIONS
+.TP
+.B \-A
+Use Atari variation of the MS-DOS file system. This is default if
+\fBmkdosfs\fP is run on an Atari, then this option turns off Atari
+format. There are some differences when using Atari format: If not
+directed otherwise by the user, \fBmkdosfs\fP will always use 2
+sectors per cluster, since GEMDOS doesn't like other values very much.
+It will also obey the maximum number of sectors GEMDOS can handle.
+Larger file systems are managed by raising the logical sector size.
+Under Atari format, an Atari-compatible serial number for the
+file system is generated, and a 12 bit FAT is used only for file systems
+that have one of the usual floppy sizes (720k, 1.2M, 1.44M, 2.88M), a
+16 bit FAT otherwise. This can be overridden with the \fB\-F\fP
+option. Some PC-specific boot sector fields aren't written, and a boot
+message (option \fB\-m\fP) is ignored.
+.TP
+.BI \-b " sector-of-backup "
+Selects the location of the backup boot sector for FAT32. Default
+depends on number of reserved sectors, but usually is sector 6. The
+backup must be within the range of reserved sectors.
+.TP
+.B \-c
+Check the device for bad blocks before creating the file system.
+.TP
+.B \-C
+Create the file given as \fIdevice\fP on the command line, and write
+the to-be-created file system to it. This can be used to create the
+new file system in a file instead of on a real device, and to avoid
+using \fBdd\fP in advance to create a file of appropriate size. With
+this option, the \fIblock-count\fP must be given, because otherwise
+the intended size of the file system wouldn't be known. The file
+created is a sparse file, which actually only contains the meta-data
+areas (boot sector, FATs, and root directory). The data portions won't
+be stored on the disk, but the file nevertheless will have the
+correct size. The resulting file can be copied later to a floppy disk
+or other device, or mounted through a loop device.
+.TP
+.BI \-f " number-of-FATs"
+Specify the number of file allocation tables in the file system.  The
+default is 2.  Currently the Linux MS-DOS file system does not support
+more than 2 FATs.
+.TP
+.BI \-F " FAT-size"
+Specifies the type of file allocation tables used (12, 16 or 32 bit).
+If nothing is specified, \fBmkdosfs\fR will automatically select
+between 12, 16 and 32 bit, whatever fits better for the file system size.
+.TP
+.BI \-h " number-of-hidden-sectors "
+Select the number of hidden sectors in the volume. Apparently some
+digital cameras get indigestion if you feed them a CF card without
+such hidden sectors, this option allows you to satisfy them. Assumes
+\'0\' if no value is given on the command line.
+.TP
+.I \-i " volume-id"
+Sets the volume ID of the newly created file system;
+.I volume-id
+is a 32-bit hexadecimal number (for example, 2e24ec82).  The default
+is a number which depends on the file system creation time.
+.TP
+.B \-I
+It is typical for fixed disk devices to be partitioned so, by default, you are
+not permitted to create a filesystem across the entire device.
+.B mkdosfs
+will complain and tell you that it refuses to work.  This is different
+when using MO disks.  One doesn't always need partitions on MO disks.
+The file system can go directly to the whole disk.  Under other OSes
+this is known as the 'superfloppy' format.
+
+This switch will force
+.B mkdosfs
+to work properly.
+.TP
+.BI \-l " filename"
+Read the bad blocks list from
+.IR filename .
+.TP
+.BI \-m " message-file"
+Sets the message the user receives on attempts to boot this file system
+without having properly installed an operating system.  The message
+file must not exceed 418 bytes once line feeds have been converted to
+carriage return-line feed combinations, and tabs have been expanded.
+If the filename is a hyphen (-), the text is taken from standard input.
+.TP
+.BI \-n " volume-name"
+Sets the volume name (label) of the file system.  The volume name can
+be up to 11 characters long.  The default is no label.
+.TP
+.BI \-r " root-dir-entries"
+Select the number of entries available in the root directory.  The
+default is 112 or 224 for floppies and 512 for hard disks.
+.TP
+.BI \-R " number-of-reserved-sectors "
+Select the number of reserved sectors. With FAT32 format at least 2
+reserved sectors are needed, the default is 32. Otherwise the default
+is 1 (only the boot sector).
+.TP
+.BI \-s " sectors-per-cluster"
+Specify the number of disk sectors per cluster.  Must be a power of 2,
+i.e. 1, 2, 4, 8, ... 128.
+.TP
+.BI \-S " logical-sector-size"
+Specify the number of bytes per logical sector.  Must be a power of 2
+and greater than or equal to 512, i.e. 512, 1024, 2048, 4096, 8192,
+16384, or 32768.
+.TP
+.B \-v
+Verbose execution.
+.SH BUGS
+.B mkdosfs
+can not create boot-able file systems. This isn't as easy as you might
+think at first glance for various reasons and has been discussed a lot
+already.
+.B mkdosfs
+simply will not support it ;)
+.SH AUTHOR
+Dave Hudson - <dave@humbug.demon.co.uk>; modified by Peter Anvin
+<hpa@yggdrasil.com>. Fixes and additions by Roman Hodek
+<roman@hodek.net> for Debian/GNU Linux.
+.SH ACKNOWLEDGMENTS
+.B mkdosfs
+is based on code from
+.BR mke2fs
+(written by Remy Card - <card@masi.ibp.fr>) which is itself based on
+.BR mkfs
+(written by Linus Torvalds - <torvalds@cs.helsinki.fi>).
+.SH SEE ALSO
+.BR dosfsck (8),
+.BR mkfs (8)
diff --git a/src/Android.mk b/src/Android.mk
new file mode 100644
index 0000000..a76a23a
--- /dev/null
+++ b/src/Android.mk
@@ -0,0 +1,20 @@
+ifneq ($(TARGET_SIMULATOR), true)
+
+LOCAL_PATH := $(call my-dir)
+
+include $(CLEAR_VARS)
+
+LOCAL_SRC_FILES := \
+		boot.c check.c common.c fat.c file.c io.c lfn.c dosfsck.c
+
+LOCAL_C_INCLUDES := external/dosfstools/src
+
+LOCAL_CFLAGS := -O2 -g -W -Wall -D_LARGEFILE_SOURCE -D_FILE_OFFSET_BITS=64
+
+LOCAL_MODULE := dosfsck
+LOCAL_MODULE_TAGS :=
+LOCAL_SYSTEM_SHARED_LIBRARIES := libc
+
+include $(BUILD_EXECUTABLE)
+
+endif
diff --git a/src/boot.c b/src/boot.c
new file mode 100644
index 0000000..7048b7f
--- /dev/null
+++ b/src/boot.c
@@ -0,0 +1,463 @@
+/* boot.c - Read and analyze ia PC/MS-DOS boot sector
+
+   Copyright (C) 1993 Werner Almesberger <werner.almesberger@lrc.di.epfl.ch>
+   Copyright (C) 1998 Roman Hodek <Roman.Hodek@informatik.uni-erlangen.de>
+
+   This program is free software: you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation, either version 3 of the License, or
+   (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program. If not, see <http://www.gnu.org/licenses/>.
+
+   On Debian systems, the complete text of the GNU General Public License
+   can be found in /usr/share/common-licenses/GPL-3 file.
+*/
+
+/* FAT32, VFAT, Atari format support, and various fixes additions May 1998
+ * by Roman Hodek <Roman.Hodek@informatik.uni-erlangen.de> */
+
+#include <stdio.h>
+#include <string.h>
+#include <sys/types.h>
+#include <stdlib.h>
+#include <stdarg.h>
+
+#include "common.h"
+#include "dosfsck.h"
+#include "io.h"
+#include "boot.h"
+
+
+#define ROUND_TO_MULTIPLE(n,m) ((n) && (m) ? (n)+(m)-1-((n)-1)%(m) : 0)
+    /* don't divide by zero */
+
+/* cut-over cluster counts for FAT12 and FAT16 */
+#define FAT12_THRESHOLD  4085
+#define FAT16_THRESHOLD 65525
+
+static struct {
+    __u8 media;
+    char *descr;
+} mediabytes[] = {
+    { 0xf0, "5.25\" or 3.5\" HD floppy" },
+    { 0xf8, "hard disk" },
+    { 0xf9, "3,5\" 720k floppy 2s/80tr/9sec or "
+            "5.25\" 1.2M floppy 2s/80tr/15sec" },
+    { 0xfa, "5.25\" 320k floppy 1s/80tr/8sec" },
+    { 0xfb, "3.5\" 640k floppy 2s/80tr/8sec" },
+    { 0xfc, "5.25\" 180k floppy 1s/40tr/9sec" },
+    { 0xfd, "5.25\" 360k floppy 2s/40tr/9sec" },
+    { 0xfe, "5.25\" 160k floppy 1s/40tr/8sec" },
+    { 0xff, "5.25\" 320k floppy 2s/40tr/8sec" },
+};
+
+#if defined __alpha || defined __ia64__ || defined __s390x__ || defined __x86_64__ || defined __ppc64__ || defined __arm__
+/* Unaligned fields must first be copied byte-wise */
+#define GET_UNALIGNED_W(f)			\
+    ({						\
+	unsigned short __v;			\
+	memcpy( &__v, &f, sizeof(__v) );	\
+	CF_LE_W( *(unsigned short *)&__v );	\
+    })
+#else
+#define GET_UNALIGNED_W(f) CF_LE_W( *(unsigned short *)&f )
+#endif
+
+void die_notfat(char *msg,...)
+{
+    va_list args;
+
+    va_start(args,msg);
+    vfprintf(stderr,msg,args);
+    va_end(args);
+    fprintf(stderr,"\n");
+    exit(8);
+}
+
+
+static char *get_media_descr( unsigned char media )
+{
+    unsigned int i;
+
+    for( i = 0; i < sizeof(mediabytes)/sizeof(*mediabytes); ++i ) {
+	if (mediabytes[i].media == media)
+	    return( mediabytes[i].descr );
+    }
+    return( "undefined" );
+}
+
+static void dump_boot(DOS_FS *fs,struct boot_sector *b,unsigned lss)
+{
+    unsigned short sectors;
+
+    printf("Boot sector contents:\n");
+    if (!atari_format) {
+	char id[9];
+	strncpy(id,b->system_id,8);
+	id[8] = 0;
+	printf("System ID \"%s\"\n",id);
+    }
+    else {
+	/* On Atari, a 24 bit serial number is stored at offset 8 of the boot
+	 * sector */
+	printf("Serial number 0x%x\n",
+	       b->system_id[5] | (b->system_id[6]<<8) | (b->system_id[7]<<16));
+    }
+    printf("Media byte 0x%02x (%s)\n",b->media,get_media_descr(b->media));
+    printf("%10d bytes per logical sector\n",GET_UNALIGNED_W(b->sector_size));
+    printf("%10d bytes per cluster\n",fs->cluster_size);
+    printf("%10d reserved sector%s\n",CF_LE_W(b->reserved),
+	   CF_LE_W(b->reserved) == 1 ? "" : "s");
+    printf("First FAT starts at byte %llu (sector %llu)\n",
+	   (unsigned long long)fs->fat_start,
+	   (unsigned long long)fs->fat_start/lss);
+    printf("%10d FATs, %d bit entries\n",b->fats,fs->fat_bits);
+    printf("%10d bytes per FAT (= %u sectors)\n",fs->fat_size,
+	   fs->fat_size/lss);
+    if (!fs->root_cluster) {
+	printf("Root directory starts at byte %llu (sector %llu)\n",
+	       (unsigned long long)fs->root_start,
+	       (unsigned long long)fs->root_start/lss);
+	printf("%10d root directory entries\n",fs->root_entries);
+    }
+    else {
+	printf( "Root directory start at cluster %lu (arbitrary size)\n",
+		fs->root_cluster);
+    }
+    printf("Data area starts at byte %llu (sector %llu)\n",
+	   (unsigned long long)fs->data_start,
+	   (unsigned long long)fs->data_start/lss);
+    printf("%10lu data clusters (%llu bytes)\n",fs->clusters,
+	   (unsigned long long)fs->clusters*fs->cluster_size);
+    printf("%u sectors/track, %u heads\n",CF_LE_W(b->secs_track),
+	   CF_LE_W(b->heads));
+    printf("%10u hidden sectors\n",
+	   atari_format ?
+	   /* On Atari, the hidden field is only 16 bit wide and unused */
+	   (((unsigned char *)&b->hidden)[0] |
+	    ((unsigned char *)&b->hidden)[1] << 8) :
+	   CF_LE_L(b->hidden));
+    sectors = GET_UNALIGNED_W( b->sectors );
+    printf("%10u sectors total\n", sectors ? sectors : CF_LE_L(b->total_sect));
+}
+
+static void check_backup_boot(DOS_FS *fs, struct boot_sector *b, int lss)
+{
+    struct boot_sector b2;
+
+    if (!fs->backupboot_start) {
+	printf( "There is no backup boot sector.\n" );
+	if (CF_LE_W(b->reserved) < 3) {
+	    printf( "And there is no space for creating one!\n" );
+	    return;
+	}
+	if (interactive)
+	    printf( "1) Create one\n2) Do without a backup\n" );
+	else printf( "  Auto-creating backup boot block.\n" );
+	if (!interactive || get_key("12","?") == '1') {
+	    int bbs;
+	    /* The usual place for the backup boot sector is sector 6. Choose
+	     * that or the last reserved sector. */
+	    if (CF_LE_W(b->reserved) >= 7 && CF_LE_W(b->info_sector) != 6)
+		bbs = 6;
+	    else {
+		bbs = CF_LE_W(b->reserved) - 1;
+		if (bbs == CF_LE_W(b->info_sector))
+		    --bbs; /* this is never 0, as we checked reserved >= 3! */
+	    }
+	    fs->backupboot_start = bbs*lss;
+	    b->backup_boot = CT_LE_W(bbs);
+	    fs_write(fs->backupboot_start,sizeof(*b),b);
+	    fs_write((loff_t)offsetof(struct boot_sector,backup_boot),
+		     sizeof(b->backup_boot),&b->backup_boot);
+	    printf( "Created backup of boot sector in sector %d\n", bbs );
+	    return;
+	}
+	else return;
+    }
+
+    fs_read(fs->backupboot_start,sizeof(b2),&b2);
+    if (memcmp(b,&b2,sizeof(b2)) != 0) {
+	/* there are any differences */
+	__u8 *p, *q;
+	int i, pos, first = 1;
+	char buf[20];
+
+	printf( "There are differences between boot sector and its backup.\n" );
+	printf( "Differences: (offset:original/backup)\n  " );
+	pos = 2;
+	for( p = (__u8 *)b, q = (__u8 *)&b2, i = 0; i < sizeof(b2);
+	     ++p, ++q, ++i ) {
+	    if (*p != *q) {
+		sprintf( buf, "%s%u:%02x/%02x", first ? "" : ", ",
+			 (unsigned)(p-(__u8 *)b), *p, *q );
+		if (pos + strlen(buf) > 78) printf( "\n  " ), pos = 2;
+		printf( "%s", buf );
+		pos += strlen(buf);
+		first = 0;
+	    }
+	}
+	printf( "\n" );
+
+	if (interactive)
+	    printf( "1) Copy original to backup\n"
+		    "2) Copy backup to original\n"
+		    "3) No action\n" );
+	else printf( "  Not automatically fixing this.\n" );
+	switch (interactive ? get_key("123","?") : '3') {
+	  case '1':
+	    fs_write(fs->backupboot_start,sizeof(*b),b);
+	    break;
+	  case '2':
+	    fs_write(0,sizeof(b2),&b2);
+	    break;
+	  default:
+	    break;
+	}
+    }
+}
+
+static void init_fsinfo(struct info_sector *i)
+{
+    i->magic = CT_LE_L(0x41615252);
+    i->signature = CT_LE_L(0x61417272);
+    i->free_clusters = CT_LE_L(-1);
+    i->next_cluster = CT_LE_L(2);
+    i->boot_sign = CT_LE_W(0xaa55);
+}
+
+static void read_fsinfo(DOS_FS *fs, struct boot_sector *b,int lss)
+{
+    struct info_sector i;
+
+    if (!b->info_sector) {
+	printf( "No FSINFO sector\n" );
+	if (interactive)
+	    printf( "1) Create one\n2) Do without FSINFO\n" );
+	else printf( "  Not automatically creating it.\n" );
+	if (interactive && get_key("12","?") == '1') {
+	    /* search for a free reserved sector (not boot sector and not
+	     * backup boot sector) */
+	    __u32 s;
+	    for( s = 1; s < CF_LE_W(b->reserved); ++s )
+		if (s != CF_LE_W(b->backup_boot)) break;
+	    if (s > 0 && s < CF_LE_W(b->reserved)) {
+		init_fsinfo(&i);
+		fs_write((loff_t)s*lss,sizeof(i),&i);
+		b->info_sector = CT_LE_W(s);
+		fs_write((loff_t)offsetof(struct boot_sector,info_sector),
+			 sizeof(b->info_sector),&b->info_sector);
+		if (fs->backupboot_start)
+		    fs_write(fs->backupboot_start+
+			     offsetof(struct boot_sector,info_sector),
+			     sizeof(b->info_sector),&b->info_sector);
+	    }
+	    else {
+		printf( "No free reserved sector found -- "
+			"no space for FSINFO sector!\n" );
+		return;
+	    }
+	}
+	else return;
+    }
+
+    fs->fsinfo_start = CF_LE_W(b->info_sector)*lss;
+    fs_read(fs->fsinfo_start,sizeof(i),&i);
+
+    if (i.magic != CT_LE_L(0x41615252) ||
+	i.signature != CT_LE_L(0x61417272) ||
+	i.boot_sign != CT_LE_W(0xaa55)) {
+	printf( "FSINFO sector has bad magic number(s):\n" );
+	if (i.magic != CT_LE_L(0x41615252))
+	    printf( "  Offset %llu: 0x%08x != expected 0x%08x\n",
+		    (unsigned long long)offsetof(struct info_sector,magic),
+		    CF_LE_L(i.magic),0x41615252);
+	if (i.signature != CT_LE_L(0x61417272))
+	    printf( "  Offset %llu: 0x%08x != expected 0x%08x\n",
+		    (unsigned long long)offsetof(struct info_sector,signature),
+		    CF_LE_L(i.signature),0x61417272);
+	if (i.boot_sign != CT_LE_W(0xaa55))
+	    printf( "  Offset %llu: 0x%04x != expected 0x%04x\n",
+		    (unsigned long long)offsetof(struct info_sector,boot_sign),
+		    CF_LE_W(i.boot_sign),0xaa55);
+	if (interactive)
+	    printf( "1) Correct\n2) Don't correct (FSINFO invalid then)\n" );
+	else printf( "  Auto-correcting it.\n" );
+	if (!interactive || get_key("12","?") == '1') {
+	    init_fsinfo(&i);
+	    fs_write(fs->fsinfo_start,sizeof(i),&i);
+	}
+	else fs->fsinfo_start = 0;
+    }
+
+    if (fs->fsinfo_start)
+	fs->free_clusters = CF_LE_L(i.free_clusters);
+}
+
+void read_boot(DOS_FS *fs)
+{
+    struct boot_sector b;
+    unsigned total_sectors;
+    unsigned short logical_sector_size, sectors;
+    unsigned fat_length;
+    loff_t data_size;
+
+    fs_read(0,sizeof(b),&b);
+    logical_sector_size = GET_UNALIGNED_W(b.sector_size);
+    if (!logical_sector_size) die_notfat("Logical sector size is zero.");
+    fs->cluster_size = b.cluster_size*logical_sector_size;
+    if (!fs->cluster_size) die_notfat("Cluster size is zero.");
+    if (b.fats != 2 && b.fats != 1)
+	die("Currently, only 1 or 2 FATs are supported, not %d.\n",b.fats);
+    fs->nfats = b.fats;
+    sectors = GET_UNALIGNED_W(b.sectors);
+    total_sectors = sectors ? sectors : CF_LE_L(b.total_sect);
+
+    if (verbose) printf("Checking we can access the last sector of the filesystem\n");
+    /* Can't access last odd sector anyway, so round down */
+    fs_test((loff_t)((total_sectors & ~1)-1)*(loff_t)logical_sector_size,
+	    logical_sector_size);
+    fat_length = CF_LE_W(b.fat_length) ?
+		 CF_LE_W(b.fat_length) : CF_LE_L(b.fat32_length);
+    fs->fat_start = (loff_t)CF_LE_W(b.reserved)*logical_sector_size;
+    fs->root_start = ((loff_t)CF_LE_W(b.reserved)+b.fats*fat_length)*
+      logical_sector_size;
+    fs->root_entries = GET_UNALIGNED_W(b.dir_entries);
+    fs->data_start = fs->root_start+ROUND_TO_MULTIPLE(fs->root_entries <<
+      MSDOS_DIR_BITS,logical_sector_size);
+    data_size = (loff_t)total_sectors*logical_sector_size-fs->data_start;
+    fs->clusters = data_size/fs->cluster_size;
+    fs->root_cluster = 0; /* indicates standard, pre-FAT32 root dir */
+    fs->fsinfo_start = 0; /* no FSINFO structure */
+    fs->free_clusters = -1; /* unknown */
+    if (!b.fat_length && b.fat32_length) {
+	fs->fat_bits = 32;
+	fs->root_cluster = CF_LE_L(b.root_cluster);
+	if (!fs->root_cluster && fs->root_entries)
+	    /* M$ hasn't specified this, but it looks reasonable: If
+	     * root_cluster is 0 but there is a separate root dir
+	     * (root_entries != 0), we handle the root dir the old way. Give a
+	     * warning, but convertig to a root dir in a cluster chain seems
+	     * to complex for now... */
+	    printf( "Warning: FAT32 root dir not in cluster chain! "
+		    "Compability mode...\n" );
+	else if (!fs->root_cluster && !fs->root_entries)
+	    die_notfat("No root directory!");
+	else if (fs->root_cluster && fs->root_entries)
+	    printf( "Warning: FAT32 root dir is in a cluster chain, but "
+		    "a separate root dir\n"
+		    "  area is defined. Cannot fix this easily.\n" );
+	if (fs->clusters < FAT16_THRESHOLD)
+		printf("Warning: Filesystem is FAT32 according to fat_length "
+			"and fat32_length fields,\n"
+			"  but has only %lu clusters, less than the required "
+			"minimum of %d.\n"
+			"  This may lead to problems on some systems.\n",
+			fs->clusters, FAT16_THRESHOLD);
+
+	fs->backupboot_start = CF_LE_W(b.backup_boot)*logical_sector_size;
+	check_backup_boot(fs,&b,logical_sector_size);
+
+	read_fsinfo(fs,&b,logical_sector_size);
+    }
+    else if (!atari_format) {
+	/* On real MS-DOS, a 16 bit FAT is used whenever there would be too
+	 * much clusers otherwise. */
+	fs->fat_bits = (fs->clusters >= FAT12_THRESHOLD) ? 16 : 12;
+	if (fs->clusters >= FAT16_THRESHOLD)
+		die("Too many clusters (%lu) for FAT16 filesystem.",
+			fs->clusters);
+    }
+    else {
+	/* On Atari, things are more difficult: GEMDOS always uses 12bit FATs
+	 * on floppies, and always 16 bit on harddisks. */
+	fs->fat_bits = 16; /* assume 16 bit FAT for now */
+	/* If more clusters than fat entries in 16-bit fat, we assume
+	 * it's a real MSDOS FS with 12-bit fat. */
+	if (fs->clusters+2 > fat_length*logical_sector_size*8/16 ||
+	    /* if it's a floppy disk --> 12bit fat */
+	    device_no == 2 ||
+	    /* if it's a ramdisk or loopback device and has one of the usual
+	     * floppy sizes -> 12bit FAT  */
+	    ((device_no == 1 || device_no == 7) &&
+	     (total_sectors == 720 || total_sectors == 1440 ||
+	      total_sectors == 2880)))
+	    fs->fat_bits = 12;
+    }
+    /* On FAT32, the high 4 bits of a FAT entry are reserved */
+    fs->eff_fat_bits = (fs->fat_bits == 32) ? 28 : fs->fat_bits;
+    fs->fat_size = fat_length*logical_sector_size;
+
+    fs->label = calloc(12, sizeof (__u8));
+    if (fs->fat_bits == 12 || fs->fat_bits == 16) {
+        struct boot_sector_16 *b16 = (struct boot_sector_16 *)&b;
+        if (b16->extended_sig == 0x29)
+            memmove(fs->label, b16->label, 11);
+        else
+            fs->label = NULL;
+    } else if (fs->fat_bits == 32) {
+        if (b.extended_sig == 0x29)
+            memmove(fs->label, &b.label, 11);
+        else
+            fs->label = NULL;
+    }
+
+    if (fs->clusters > ((unsigned long long)fs->fat_size*8/fs->fat_bits)-2)
+	die("File system has %d clusters but only space for %d FAT entries.",
+	  fs->clusters,((unsigned long long)fs->fat_size*8/fs->fat_bits)-2);
+    if (!fs->root_entries && !fs->root_cluster)
+	die("Root directory has zero size.");
+    if (fs->root_entries & (MSDOS_DPS-1))
+	die("Root directory (%d entries) doesn't span an integral number of "
+	  "sectors.",fs->root_entries);
+    if (logical_sector_size & (SECTOR_SIZE-1))
+	die("Logical sector size (%d bytes) is not a multiple of the physical "
+	  "sector size.",logical_sector_size);
+#if 0 /* linux kernel doesn't check that either */
+    /* ++roman: On Atari, these two fields are often left uninitialized */
+    if (!atari_format && (!b.secs_track || !b.heads))
+	die("Invalid disk format in boot sector.");
+#endif
+    if (verbose) dump_boot(fs,&b,logical_sector_size);
+}
+
+void write_label(DOS_FS *fs, char *label)
+{
+    struct boot_sector b;
+    struct boot_sector_16 *b16 = (struct boot_sector_16 *)&b;
+    int l = strlen(label);
+
+    while (l < 11)
+        label[l++] = ' ';
+
+    fs_read(0, sizeof(b), &b);
+    if (fs->fat_bits == 12 || fs->fat_bits == 16) {
+        if (b16->extended_sig != 0x29) {
+            b16->extended_sig = 0x29;
+            b16->serial = 0;
+            memmove(b16->fs_type, fs->fat_bits == 12 ?"FAT12   ":"FAT16   ", 8);
+        }
+        memmove(b16->label, label, 11);
+    } else if (fs->fat_bits == 32) {
+        if (b.extended_sig != 0x29) {
+            b.extended_sig = 0x29;
+            b.serial = 0;
+            memmove(b.fs_type, "FAT32   ", 8);
+        }
+        memmove(b.label, label, 11);
+    }
+    fs_write(0, sizeof(b), &b);
+    if (fs->fat_bits == 32 && fs->backupboot_start)
+        fs_write(fs->backupboot_start, sizeof(b), &b);
+}
+
+/* Local Variables: */
+/* tab-width: 8     */
+/* End:             */
diff --git a/src/boot.h b/src/boot.h
new file mode 100644
index 0000000..eedf2b0
--- /dev/null
+++ b/src/boot.h
@@ -0,0 +1,31 @@
+/* boot.h - Read and analyze ia PC/MS-DOS boot sector
+
+   Copyright (C) 1993 Werner Almesberger <werner.almesberger@lrc.di.epfl.ch>
+
+   This program is free software: you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation, either version 3 of the License, or
+   (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program. If not, see <http://www.gnu.org/licenses/>.
+
+   On Debian systems, the complete text of the GNU General Public License
+   can be found in /usr/share/common-licenses/GPL-3 file.
+*/
+
+
+#ifndef _BOOT_H
+#define _BOOT_H
+
+void read_boot(DOS_FS *fs);
+void write_label(DOS_FS *fs, char *label);
+
+/* Reads the boot sector from the currently open device and initializes *FS */
+
+#endif
diff --git a/src/check.c b/src/check.c
new file mode 100644
index 0000000..870fcd9
--- /dev/null
+++ b/src/check.c
@@ -0,0 +1,883 @@
+/* check.c - Check and repair a PC/MS-DOS file system
+
+   Copyright (C) 1993 Werner Almesberger <werner.almesberger@lrc.di.epfl.ch>
+   Copyright (C) 1998 Roman Hodek <Roman.Hodek@informatik.uni-erlangen.de>
+
+   This program is free software: you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation, either version 3 of the License, or
+   (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program. If not, see <http://www.gnu.org/licenses/>.
+
+   On Debian systems, the complete text of the GNU General Public License
+   can be found in /usr/share/common-licenses/GPL-3 file.
+*/
+
+/* FAT32, VFAT, Atari format support, and various fixes additions May 1998
+ * by Roman Hodek <Roman.Hodek@informatik.uni-erlangen.de> */
+
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <limits.h>
+#include <time.h>
+
+#include "common.h"
+#include "dosfsck.h"
+#include "io.h"
+#include "fat.h"
+#include "file.h"
+#include "lfn.h"
+#include "check.h"
+
+
+static DOS_FILE *root;
+
+/* get start field of a dir entry */
+#define FSTART(p,fs) \
+  ((unsigned long)CF_LE_W(p->dir_ent.start) | \
+   (fs->fat_bits == 32 ? CF_LE_W(p->dir_ent.starthi) << 16 : 0))
+
+#define MODIFY(p,i,v)					\
+  do {							\
+    if (p->offset) {					\
+	p->dir_ent.i = v;				\
+	fs_write(p->offset+offsetof(DIR_ENT,i),		\
+		 sizeof(p->dir_ent.i),&p->dir_ent.i);	\
+    }							\
+  } while(0)
+
+#define MODIFY_START(p,v,fs)						\
+  do {									\
+    unsigned long __v = (v);						\
+    if (!p->offset) {							\
+	/* writing to fake entry for FAT32 root dir */			\
+	if (!__v) die("Oops, deleting FAT32 root dir!");		\
+	fs->root_cluster = __v;						\
+	p->dir_ent.start = CT_LE_W(__v&0xffff);				\
+	p->dir_ent.starthi = CT_LE_W(__v>>16);				\
+	__v = CT_LE_L(__v);						\
+	fs_write((loff_t)offsetof(struct boot_sector,root_cluster),	\
+	         sizeof(((struct boot_sector *)0)->root_cluster),	\
+		 &__v);							\
+    }									\
+    else {								\
+	MODIFY(p,start,CT_LE_W((__v)&0xffff));				\
+	if (fs->fat_bits == 32)						\
+	    MODIFY(p,starthi,CT_LE_W((__v)>>16));			\
+    }									\
+  } while(0)
+
+
+loff_t alloc_rootdir_entry(DOS_FS *fs, DIR_ENT *de, const char *pattern)
+{
+    static int curr_num = 0;
+    loff_t offset;
+
+    if (fs->root_cluster) {
+	DIR_ENT d2;
+	int i = 0, got = 0;
+	unsigned long clu_num, prev = 0;
+	loff_t offset2;
+
+	clu_num = fs->root_cluster;
+	offset = cluster_start(fs,clu_num);
+	while (clu_num > 0 && clu_num != -1) {
+	    fs_read(offset,sizeof(DIR_ENT),&d2);
+	    if (IS_FREE(d2.name) && d2.attr != VFAT_LN_ATTR) {
+		got = 1;
+		break;
+	    }
+	    i += sizeof(DIR_ENT);
+	    offset += sizeof(DIR_ENT);
+	    if ((i % fs->cluster_size) == 0) {
+		prev = clu_num;
+		if ((clu_num = next_cluster(fs,clu_num)) == 0 || clu_num == -1)
+		    break;
+		offset = cluster_start(fs,clu_num);
+	    }
+	}
+	if (!got) {
+	    /* no free slot, need to extend root dir: alloc next free cluster
+	     * after previous one */
+	    if (!prev)
+		die("Root directory has no cluster allocated!");
+	    for (clu_num = prev+1; clu_num != prev; clu_num++) {
+		if (clu_num >= fs->clusters+2) clu_num = 2;
+		if (!fs->fat[clu_num].value)
+		    break;
+	    }
+	    if (clu_num == prev)
+		die("Root directory full and no free cluster");
+	    set_fat(fs,prev,clu_num);
+	    set_fat(fs,clu_num,-1);
+	    set_owner(fs, clu_num, get_owner(fs, fs->root_cluster));
+	    /* clear new cluster */
+	    memset( &d2, 0, sizeof(d2) );
+	    offset = cluster_start(fs,clu_num);
+	    for( i = 0; i < fs->cluster_size; i += sizeof(DIR_ENT) )
+		fs_write( offset+i, sizeof(d2), &d2 );
+	}
+	memset(de,0,sizeof(DIR_ENT));
+	while (1) {
+	    sprintf(de->name,pattern,curr_num);
+	    clu_num = fs->root_cluster;
+	    i = 0;
+	    offset2 = cluster_start(fs,clu_num);
+	    while (clu_num > 0 && clu_num != -1) {
+		fs_read(offset2,sizeof(DIR_ENT),&d2);
+		if (offset2 != offset &&
+		    !strncmp(d2.name,de->name,MSDOS_NAME))
+		    break;
+		i += sizeof(DIR_ENT);
+		offset2 += sizeof(DIR_ENT);
+		if ((i % fs->cluster_size) == 0) {
+		    if ((clu_num = next_cluster(fs,clu_num)) == 0 ||
+			clu_num == -1)
+			break;
+		    offset2 = cluster_start(fs,clu_num);
+		}
+	    }
+	    if (clu_num == 0 || clu_num == -1)
+		break;
+	    if (++curr_num >= 10000) die("Unable to create unique name");
+	}
+    }
+    else {
+	DIR_ENT *root;
+	int next_free = 0, scan;
+
+	root = alloc(fs->root_entries*sizeof(DIR_ENT));
+	fs_read(fs->root_start,fs->root_entries*sizeof(DIR_ENT),root);
+
+	while (next_free < fs->root_entries)
+	    if (IS_FREE(root[next_free].name) &&
+		root[next_free].attr != VFAT_LN_ATTR)
+		break;
+	    else next_free++;
+	if (next_free == fs->root_entries)
+	    die("Root directory is full.");
+	offset = fs->root_start+next_free*sizeof(DIR_ENT);
+	memset(de,0,sizeof(DIR_ENT));
+	while (1) {
+	    sprintf(de->name,pattern,curr_num);
+	    for (scan = 0; scan < fs->root_entries; scan++)
+		if (scan != next_free &&
+		    !strncmp(root[scan].name,de->name,MSDOS_NAME))
+		    break;
+	    if (scan == fs->root_entries) break;
+	    if (++curr_num >= 10000) die("Unable to create unique name");
+	}
+	free(root);
+    }
+    ++n_files;
+    return offset;
+}
+
+
+static char *path_name(DOS_FILE *file)
+{
+    static char path[PATH_MAX*2];
+
+    if (!file) *path = 0;
+    else {
+	if (strlen(path_name(file->parent)) > PATH_MAX)
+	    die("Path name too long.");
+	if (strcmp(path,"/") != 0) strcat(path,"/");
+	strcpy(strrchr(path,0),file->lfn?file->lfn:file_name(file->dir_ent.name));
+    }
+    return path;
+}
+
+
+static int day_n[] = { 0,31,59,90,120,151,181,212,243,273,304,334,0,0,0,0 };
+		  /* JanFebMarApr May Jun Jul Aug Sep Oct Nov Dec */
+
+
+/* Convert a MS-DOS time/date pair to a UNIX date (seconds since 1 1 70). */
+
+time_t date_dos2unix(unsigned short time,unsigned short date)
+{
+    int month,year;
+    time_t secs;
+
+    month = ((date >> 5) & 15)-1;
+    year = date >> 9;
+    secs = (time & 31)*2+60*((time >> 5) & 63)+(time >> 11)*3600+86400*
+      ((date & 31)-1+day_n[month]+(year/4)+year*365-((year & 3) == 0 &&
+      month < 2 ? 1 : 0)+3653);
+                       /* days since 1.1.70 plus 80's leap day */
+    return secs;
+}
+
+
+static char *file_stat(DOS_FILE *file)
+{
+    static char temp[100];
+    struct tm *tm;
+    char tmp[100];
+    time_t date;
+
+    date = date_dos2unix(CF_LE_W(file->dir_ent.time),CF_LE_W(file->
+      dir_ent.date));
+    tm = localtime(&date);
+    strftime(tmp,99,"%H:%M:%S %b %d %Y",tm);
+    sprintf(temp,"  Size %u bytes, date %s",CF_LE_L(file->dir_ent.size),tmp);
+    return temp;
+}
+
+
+static int bad_name(unsigned char *name)
+{
+    int i, spc, suspicious = 0;
+    char *bad_chars = atari_format ? "*?\\/:" : "*?<>|\"\\/:";
+
+    /* Do not complain about (and auto-correct) the extended attribute files
+     * of OS/2. */
+    if (strncmp(name,"EA DATA  SF",11) == 0 ||
+        strncmp(name,"WP ROOT  SF",11) == 0) return 0;
+
+    for (i = 0; i < 8; i++) {
+	if (name[i] < ' ' || name[i] == 0x7f) return 1;
+	if (name[i] > 0x7f) ++suspicious;
+	if (strchr(bad_chars,name[i])) return 1;
+    }
+
+    for (i = 8; i < 11; i++) {
+	if (name[i] < ' ' || name[i] == 0x7f) return 1;
+	if (name[i] > 0x7f) ++suspicious;
+	if (strchr(bad_chars,name[i])) return 1;
+    }
+
+    spc = 0;
+    for (i = 0; i < 8; i++) {
+	if (name[i] == ' ')
+	    spc = 1;
+	else if (spc)
+	    /* non-space after a space not allowed, space terminates the name
+	     * part */
+	    return 1;
+    }
+
+    spc = 0;
+    for (i = 8; i < 11; i++) {
+	if (name[i] == ' ')
+	    spc = 1;
+	else if (spc)
+	    /* non-space after a space not allowed, space terminates the name
+	     * part */
+	    return 1;
+    }
+
+    /* Under GEMDOS, chars >= 128 are never allowed. */
+    if (atari_format && suspicious)
+	return 1;
+
+    /* Only complain about too much suspicious chars in interactive mode,
+     * never correct them automatically. The chars are all basically ok, so we
+     * shouldn't auto-correct such names. */
+    if (interactive && suspicious > 6)
+	return 1;
+    return 0;
+}
+
+
+static void drop_file(DOS_FS *fs,DOS_FILE *file)
+{
+    unsigned long cluster;
+
+    MODIFY(file,name[0],DELETED_FLAG);
+    for (cluster = FSTART(file,fs); cluster > 0 && cluster <
+      fs->clusters+2; cluster = next_cluster(fs,cluster))
+	set_owner(fs,cluster,NULL);
+    --n_files;
+}
+
+
+static void truncate_file(DOS_FS *fs,DOS_FILE *file,unsigned long clusters)
+{
+    int deleting;
+    unsigned long walk,next,prev;
+
+    walk = FSTART(file,fs);
+    prev = 0;
+    if ((deleting = !clusters)) MODIFY_START(file,0,fs);
+    while (walk > 0 && walk != -1) {
+	next = next_cluster(fs,walk);
+	if (deleting) set_fat(fs,walk,0);
+	else if ((deleting = !--clusters)) set_fat(fs,walk,-1);
+	prev = walk;
+	walk = next;
+    }
+}
+
+
+static void auto_rename(DOS_FILE *file)
+{
+    DOS_FILE *first,*walk;
+    unsigned long int number;
+
+    if (!file->offset) return;	/* cannot rename FAT32 root dir */
+    first = file->parent ? file->parent->first : root;
+    number = 0;
+    while (1) {
+	sprintf(file->dir_ent.name, "FSCK%04d", number / 1000);
+	sprintf(file->dir_ent.name, "%03d", number % 1000);
+	for (walk = first; walk; walk = walk->next)
+	    if (walk != file && !strncmp(walk->dir_ent.name,file->dir_ent.
+	      name,MSDOS_NAME)) break;
+	if (!walk) {
+	    fs_write(file->offset,MSDOS_NAME,file->dir_ent.name);
+	    return;
+	}
+	number++;
+	if (number > 9999999) {
+		die("Too many files need repair.");
+	}
+    }
+    die("Can't generate a unique name.");
+}
+
+
+static void rename_file(DOS_FILE *file)
+{
+    unsigned char name[46];
+    unsigned char *walk,*here;
+
+    if (!file->offset) {
+	printf( "Cannot rename FAT32 root dir\n" );
+	return;	/* cannot rename FAT32 root dir */
+    }
+    while (1) {
+	printf("New name: ");
+	fflush(stdout);
+	if (fgets(name,45,stdin)) {
+	    if ((here = strchr(name,'\n'))) *here = 0;
+	    for (walk = strrchr(name,0); walk >= name && (*walk == ' ' ||
+	      *walk == '\t'); walk--);
+	    walk[1] = 0;
+	    for (walk = name; *walk == ' ' || *walk == '\t'; walk++);
+	    if (file_cvt(walk,file->dir_ent.name)) {
+		fs_write(file->offset,MSDOS_NAME,file->dir_ent.name);
+		return;
+	    }
+	}
+    }
+}
+
+
+static int handle_dot(DOS_FS *fs,DOS_FILE *file,int dots)
+{
+    char *name;
+
+    name = strncmp(file->dir_ent.name,MSDOS_DOT,MSDOS_NAME) ? ".." : ".";
+    if (!(file->dir_ent.attr & ATTR_DIR)) {
+	printf("%s\n  Is a non-directory.\n",path_name(file));
+	if (interactive)
+	    printf("1) Drop it\n2) Auto-rename\n3) Rename\n"
+	      "4) Convert to directory\n");
+	else printf("  Auto-renaming it.\n");
+	switch (interactive ? get_key("1234","?") : '2') {
+	    case '1':
+		drop_file(fs,file);
+		return 1;
+	    case '2':
+		auto_rename(file);
+		printf("  Renamed to %s\n",file_name(file->dir_ent.name));
+		return 0;
+	    case '3':
+		rename_file(file);
+		return 0;
+	    case '4':
+		MODIFY(file,size,CT_LE_L(0));
+		MODIFY(file,attr,file->dir_ent.attr | ATTR_DIR);
+		break;
+	}
+    }
+    if (!dots) {
+	printf("Root contains directory \"%s\". Dropping it.\n",name);
+	drop_file(fs,file);
+	return 1;
+    }
+    return 0;
+}
+
+
+static int check_file(DOS_FS *fs,DOS_FILE *file)
+{
+    DOS_FILE *owner;
+    int restart;
+    unsigned long expect,curr,this,clusters,prev,walk,clusters2;
+
+    if (file->dir_ent.attr & ATTR_DIR) {
+	if (CF_LE_L(file->dir_ent.size)) {
+	    printf("%s\n  Directory has non-zero size. Fixing it.\n",
+	      path_name(file));
+	    MODIFY(file,size,CT_LE_L(0));
+	}
+	if (file->parent && !strncmp(file->dir_ent.name,MSDOS_DOT,MSDOS_NAME)) {
+	    expect = FSTART(file->parent,fs);
+	    if (FSTART(file,fs) != expect) {
+		printf("%s\n  Start (%ld) does not point to parent (%ld)\n",
+		  path_name(file),FSTART(file,fs),expect);
+		MODIFY_START(file,expect,fs);
+	    }
+	    return 0;
+	}
+	if (file->parent && !strncmp(file->dir_ent.name,MSDOS_DOTDOT,
+	  MSDOS_NAME)) {
+	    expect = file->parent->parent ? FSTART(file->parent->parent,fs):0;
+	    if (fs->root_cluster && expect == fs->root_cluster)
+		expect = 0;
+	    if (FSTART(file,fs) != expect) {
+		printf("%s\n  Start (%lu) does not point to .. (%lu)\n",
+		  path_name(file),FSTART(file,fs),expect);
+		MODIFY_START(file,expect,fs);
+	    }
+	    return 0;
+	}
+	if (FSTART(file,fs)==0){
+		printf ("%s\n Start does point to root directory. Deleting dir. \n",
+				path_name(file));
+    		MODIFY(file,name[0],DELETED_FLAG);
+		return 0;
+	}
+    }
+    if (FSTART(file,fs) >= fs->clusters+2) {
+	printf("%s\n  Start cluster beyond limit (%lu > %lu). Truncating file.\n",
+	  path_name(file),FSTART(file,fs),fs->clusters+1);
+	if (!file->offset)
+	    die( "Bad FAT32 root directory! (bad start cluster)\n" );
+	MODIFY_START(file,0,fs);
+    }
+    clusters = prev = 0;
+    for (curr = FSTART(file,fs) ? FSTART(file,fs) :
+      -1; curr != -1; curr = next_cluster(fs,curr)) {
+	if (!fs->fat[curr].value || bad_cluster(fs,curr)) {
+	    printf("%s\n  Contains a %s cluster (%lu). Assuming EOF.\n",
+	      path_name(file),fs->fat[curr].value ? "bad" : "free",curr);
+	    if (prev) set_fat(fs,prev,-1);
+	    else if (!file->offset)
+		die( "FAT32 root dir starts with a bad cluster!" );
+	    else MODIFY_START(file,0,fs);
+	    break;
+	}
+	if (!(file->dir_ent.attr & ATTR_DIR) && CF_LE_L(file->dir_ent.size) <=
+	  (unsigned long long)clusters*fs->cluster_size) {
+	    printf("%s\n  File size is %u bytes, cluster chain length is > %llu "
+	      "bytes.\n  Truncating file to %u bytes.\n",path_name(file),
+	      CF_LE_L(file->dir_ent.size),(unsigned long long)clusters*fs->cluster_size,
+	      CF_LE_L(file->dir_ent.size));
+	    truncate_file(fs,file,clusters);
+	    break;
+	}
+	if ((owner = get_owner(fs,curr))) {
+	    int do_trunc = 0;
+	    printf("%s  and\n",path_name(owner));
+	    printf("%s\n  share clusters.\n",path_name(file));
+	    clusters2 = 0;
+	    for (walk = FSTART(owner,fs); walk > 0 && walk != -1; walk =
+	      next_cluster(fs,walk))
+		if (walk == curr) break;
+		else clusters2++;
+	    restart = file->dir_ent.attr & ATTR_DIR;
+	    if (!owner->offset) {
+		printf( "  Truncating second to %llu bytes because first "
+			"is FAT32 root dir.\n", (unsigned long long)clusters2*fs->cluster_size );
+		do_trunc = 2;
+	    }
+	    else if (!file->offset) {
+		printf( "  Truncating first to %llu bytes because second "
+			"is FAT32 root dir.\n", (unsigned long long)clusters*fs->cluster_size );
+		do_trunc = 1;
+	    }
+	    else if (interactive)
+		printf("1) Truncate first to %llu bytes%s\n"
+		  "2) Truncate second to %llu bytes\n",(unsigned long long)clusters*fs->cluster_size,
+		  restart ? " and restart" : "",(unsigned long long)clusters2*fs->cluster_size);
+	    else printf("  Truncating second to %llu bytes.\n",(unsigned long long)clusters2*
+		  fs->cluster_size);
+	    if (do_trunc != 2 &&
+		(do_trunc == 1 ||
+		 (interactive && get_key("12","?") == '1'))) {
+		prev = 0;
+		clusters = 0;
+		for (this = FSTART(owner,fs); this > 0 && this != -1; this =
+		  next_cluster(fs,this)) {
+		    if (this == curr) {
+			if (prev) set_fat(fs,prev,-1);
+			else MODIFY_START(owner,0,fs);
+			MODIFY(owner,size,CT_LE_L((unsigned long long)clusters*fs->cluster_size));
+			if (restart) return 1;
+			while (this > 0 && this != -1) {
+			    set_owner(fs,this,NULL);
+			    this = next_cluster(fs,this);
+			}
+			this = curr;
+			break;
+		    }
+		    clusters++;
+		    prev = this;
+		}
+		if (this != curr)
+		    die("Internal error: didn't find cluster %d in chain"
+		      " starting at %d",curr,FSTART(owner,fs));
+	    }
+	    else {
+		if (prev) set_fat(fs,prev,-1);
+		else MODIFY_START(file,0,fs);
+		break;
+	    }
+	}
+	set_owner(fs,curr,file);
+	clusters++;
+	prev = curr;
+    }
+    if (!(file->dir_ent.attr & ATTR_DIR) && CF_LE_L(file->dir_ent.size) >
+      (unsigned long long)clusters*fs->cluster_size) {
+	printf("%s\n  File size is %u bytes, cluster chain length is %llu bytes."
+	  "\n  Truncating file to %lu bytes.\n",path_name(file),CF_LE_L(file->
+	  dir_ent.size),(unsigned long long)clusters*fs->cluster_size,(unsigned long long)clusters*fs->cluster_size);
+	MODIFY(file,size,CT_LE_L((unsigned long long)clusters*fs->cluster_size));
+    }
+    return 0;
+}
+
+
+static int check_files(DOS_FS *fs,DOS_FILE *start)
+{
+    while (start) {
+	if (check_file(fs,start)) return 1;
+	start = start->next;
+    }
+    return 0;
+}
+
+
+static int check_dir(DOS_FS *fs,DOS_FILE **root,int dots)
+{
+    DOS_FILE *parent,**walk,**scan;
+    int dot,dotdot,skip,redo;
+    int good,bad;
+
+    if (!*root) return 0;
+    parent = (*root)->parent;
+    good = bad = 0;
+    for (walk = root; *walk; walk = &(*walk)->next)
+	if (bad_name((*walk)->dir_ent.name)) bad++;
+	else good++;
+    if (*root && parent && good+bad > 4 && bad > good/2) {
+	printf("%s\n  Has a large number of bad entries. (%d/%d)\n",
+	  path_name(parent),bad,good+bad);
+	if (!dots) printf( "  Not dropping root directory.\n" );
+	else if (!interactive) printf("  Not dropping it in auto-mode.\n");
+	else if (get_key("yn","Drop directory ? (y/n)") == 'y') {
+	    truncate_file(fs,parent,0);
+	    MODIFY(parent,name[0],DELETED_FLAG);
+	    /* buglet: deleted directory stays in the list. */
+	    return 1;
+	}
+    }
+    dot = dotdot = redo = 0;
+    walk = root;
+    while (*walk) {
+	if (!strncmp((*walk)->dir_ent.name,MSDOS_DOT,MSDOS_NAME) ||
+	  !strncmp((*walk)->dir_ent.name,MSDOS_DOTDOT,MSDOS_NAME)) {
+	    if (handle_dot(fs,*walk,dots)) {
+		*walk = (*walk)->next;
+		continue;
+	    }
+	    if (!strncmp((*walk)->dir_ent.name,MSDOS_DOT,MSDOS_NAME)) dot++;
+	    else dotdot++;
+	}
+	if (!((*walk)->dir_ent.attr & ATTR_VOLUME) &&
+	    bad_name((*walk)->dir_ent.name)) {
+	    printf("%s\n  Bad file name.\n",path_name(*walk));
+	    if (interactive)
+		printf("1) Drop file\n2) Rename file\n3) Auto-rename\n"
+		  "4) Keep it\n");
+	    else printf("  Auto-renaming it.\n");
+	    switch (interactive ? get_key("1234","?") : '3') {
+		case '1':
+		    drop_file(fs,*walk);
+		    walk = &(*walk)->next;
+		    continue;
+		case '2':
+		    rename_file(*walk);
+		    redo = 1;
+		    break;
+		case '3':
+		    auto_rename(*walk);
+		    printf("  Renamed to %s\n",file_name((*walk)->dir_ent.
+		      name));
+		    break;
+		case '4':
+		    break;
+	    }
+	}
+	/* don't check for duplicates of the volume label */
+	if (!((*walk)->dir_ent.attr & ATTR_VOLUME)) {
+	    scan = &(*walk)->next;
+	    skip = 0;
+	    while (*scan && !skip) {
+		if (!((*scan)->dir_ent.attr & ATTR_VOLUME) &&
+		    !strncmp((*walk)->dir_ent.name,(*scan)->dir_ent.name,MSDOS_NAME)) {
+		    printf("%s\n  Duplicate directory entry.\n  First  %s\n",
+			   path_name(*walk),file_stat(*walk));
+		    printf("  Second %s\n",file_stat(*scan));
+		    if (interactive)
+			printf("1) Drop first\n2) Drop second\n3) Rename first\n"
+			       "4) Rename second\n5) Auto-rename first\n"
+			       "6) Auto-rename second\n");
+		    else printf("  Auto-renaming second.\n");
+		    switch (interactive ? get_key("123456","?") : '6') {
+		      case '1':
+			drop_file(fs,*walk);
+			*walk = (*walk)->next;
+			skip = 1;
+			break;
+		      case '2':
+			drop_file(fs,*scan);
+			*scan = (*scan)->next;
+			continue;
+		      case '3':
+			rename_file(*walk);
+			printf("  Renamed to %s\n",path_name(*walk));
+			redo = 1;
+			break;
+		      case '4':
+			rename_file(*scan);
+			printf("  Renamed to %s\n",path_name(*walk));
+			redo = 1;
+			break;
+		      case '5':
+			auto_rename(*walk);
+			printf("  Renamed to %s\n",file_name((*walk)->dir_ent.
+			  name));
+			break;
+		      case '6':
+			auto_rename(*scan);
+			printf("  Renamed to %s\n",file_name((*scan)->dir_ent.
+			  name));
+			break;
+		    }
+		}
+		scan = &(*scan)->next;
+	    }
+	    if (skip) continue;
+	}
+	if (!redo) walk = &(*walk)->next;
+	else {
+	    walk = root;
+	    dot = dotdot = redo = 0;
+	}
+    }
+    if (dots && !dot)
+	printf("%s\n  \".\" is missing. Can't fix this yet.\n",
+	  path_name(parent));
+    if (dots && !dotdot)
+	printf("%s\n  \"..\" is missing. Can't fix this yet.\n",
+	  path_name(parent));
+    return 0;
+}
+
+
+static void test_file(DOS_FS *fs,DOS_FILE *file,int read_test)
+{
+    DOS_FILE *owner;
+    unsigned long walk,prev,clusters,next_clu;
+
+    prev = clusters = 0;
+    for (walk = FSTART(file,fs); walk > 0 && walk < fs->clusters+2;
+      walk = next_clu) {
+	next_clu = next_cluster(fs,walk);
+	if ((owner = get_owner(fs,walk))) {
+	    if (owner == file) {
+		printf("%s\n  Circular cluster chain. Truncating to %lu "
+		  "cluster%s.\n",path_name(file),clusters,clusters == 1 ? "" :
+		  "s");
+		if (prev) set_fat(fs,prev,-1);
+		else if (!file->offset)
+		    die( "Bad FAT32 root directory! (bad start cluster)\n" );
+		else MODIFY_START(file,0,fs);
+	    }
+	    break;
+	}
+	if (bad_cluster(fs,walk)) break;
+	if (read_test) {
+	    if (fs_test(cluster_start(fs,walk),fs->cluster_size)) {
+		prev = walk;
+		clusters++;
+	    }
+	    else {
+		printf("%s\n  Cluster %lu (%lu) is unreadable. Skipping it.\n",
+		  path_name(file),clusters,walk);
+		if (prev) set_fat(fs,prev,next_cluster(fs,walk));
+		else MODIFY_START(file,next_cluster(fs,walk),fs);
+		set_fat(fs,walk,-2);
+	    }
+	}
+	set_owner(fs,walk,file);
+    }
+    for (walk = FSTART(file,fs); walk > 0 && walk < fs->clusters+2;
+      walk = next_cluster(fs,walk))
+	if (bad_cluster(fs,walk)) break;
+	else if (get_owner(fs,walk) == file) set_owner(fs,walk,NULL);
+	    else break;
+}
+
+
+static void undelete(DOS_FS *fs,DOS_FILE *file)
+{
+    unsigned long clusters,left,prev,walk;
+
+    clusters = left = (CF_LE_L(file->dir_ent.size)+fs->cluster_size-1)/
+      fs->cluster_size;
+    prev = 0;
+    for (walk = FSTART(file,fs); left && walk >= 2 && walk <
+       fs->clusters+2 && !fs->fat[walk].value; walk++) {
+	left--;
+	if (prev) set_fat(fs,prev,walk);
+	prev = walk;
+    }
+    if (prev) set_fat(fs,prev,-1);
+    else MODIFY_START(file,0,fs);
+    if (left)
+	printf("Warning: Did only undelete %lu of %lu cluster%s.\n",clusters-left,
+	  clusters,clusters == 1 ? "" : "s");
+
+}
+
+
+static void new_dir( void )
+{
+    lfn_reset();
+}
+
+
+static void add_file(DOS_FS *fs,DOS_FILE ***chain,DOS_FILE *parent,
+					 loff_t offset,FDSC **cp)
+{
+    DOS_FILE *new;
+    DIR_ENT de;
+    FD_TYPE type;
+
+    if (offset)
+	fs_read(offset,sizeof(DIR_ENT),&de);
+    else {
+	memcpy(de.name,"           ",MSDOS_NAME);
+	de.attr = ATTR_DIR;
+	de.size = de.time = de.date = 0;
+	de.start = CT_LE_W(fs->root_cluster & 0xffff);
+	de.starthi = CT_LE_W((fs->root_cluster >> 16) & 0xffff);
+    }
+    if ((type = file_type(cp,de.name)) != fdt_none) {
+	if (type == fdt_undelete && (de.attr & ATTR_DIR))
+	    die("Can't undelete directories.");
+	file_modify(cp,de.name);
+	fs_write(offset,1,&de);
+    }
+    if (IS_FREE(de.name)) {
+	lfn_check_orphaned();
+	return;
+    }
+    if (de.attr == VFAT_LN_ATTR) {
+	lfn_add_slot(&de,offset);
+	return;
+    }
+    new = qalloc(&mem_queue,sizeof(DOS_FILE));
+    new->lfn = lfn_get(&de);
+    new->offset = offset;
+    memcpy(&new->dir_ent,&de,sizeof(de));
+    new->next = new->first = NULL;
+    new->parent = parent;
+    if (type == fdt_undelete) undelete(fs,new);
+    **chain = new;
+    *chain = &new->next;
+    if (list) {
+	printf("Checking file %s",path_name(new));
+	if (new->lfn)
+	    printf(" (%s)", file_name(new->dir_ent.name) );
+	printf("\n");
+    }
+    if (offset &&
+	strncmp(de.name,MSDOS_DOT,MSDOS_NAME) != 0 &&
+	strncmp(de.name,MSDOS_DOTDOT,MSDOS_NAME) != 0)
+	++n_files;
+    test_file(fs,new,test);
+}
+
+
+static int subdirs(DOS_FS *fs,DOS_FILE *parent,FDSC **cp);
+
+
+static int scan_dir(DOS_FS *fs,DOS_FILE *this,FDSC **cp)
+{
+    DOS_FILE **chain;
+    int i;
+    unsigned long clu_num;
+
+    chain = &this->first;
+    i = 0;
+    clu_num = FSTART(this,fs);
+    new_dir();
+    while (clu_num > 0 && clu_num != -1) {
+	add_file(fs,&chain,this,cluster_start(fs,clu_num)+(i % fs->
+	  cluster_size),cp);
+	i += sizeof(DIR_ENT);
+	if (!(i % fs->cluster_size))
+	    if ((clu_num = next_cluster(fs,clu_num)) == 0 || clu_num == -1)
+		break;
+    }
+    lfn_check_orphaned();
+    if (check_dir(fs,&this->first,this->offset)) return 0;
+    if (check_files(fs,this->first)) return 1;
+    return subdirs(fs,this,cp);
+}
+
+
+static int subdirs(DOS_FS *fs,DOS_FILE *parent,FDSC **cp)
+{
+    DOS_FILE *walk;
+
+    for (walk = parent ? parent->first : root; walk; walk = walk->next)
+	if (walk->dir_ent.attr & ATTR_DIR)
+	    if (strncmp(walk->dir_ent.name,MSDOS_DOT,MSDOS_NAME) &&
+	      strncmp(walk->dir_ent.name,MSDOS_DOTDOT,MSDOS_NAME))
+		if (scan_dir(fs,walk,file_cd(cp,walk->dir_ent.name))) return 1;
+    return 0;
+}
+
+
+int scan_root(DOS_FS *fs)
+{
+    DOS_FILE **chain;
+    int i;
+
+    root = NULL;
+    chain = &root;
+    new_dir();
+    if (fs->root_cluster) {
+	add_file(fs,&chain,NULL,0,&fp_root);
+    }
+    else {
+	for (i = 0; i < fs->root_entries; i++)
+	    add_file(fs,&chain,NULL,fs->root_start+i*sizeof(DIR_ENT),&fp_root);
+    }
+    lfn_check_orphaned();
+    (void) check_dir(fs,&root,0);
+    if (check_files(fs,root)) return 1;
+    return subdirs(fs,NULL,&fp_root);
+}
+
+/* Local Variables: */
+/* tab-width: 8     */
+/* End:             */
diff --git a/src/check.h b/src/check.h
new file mode 100644
index 0000000..a41bb86
--- /dev/null
+++ b/src/check.h
@@ -0,0 +1,40 @@
+/* check.h - Check and repair a PC/MS-DOS file system
+
+   Copyright (C) 1993 Werner Almesberger <werner.almesberger@lrc.di.epfl.ch>
+
+   This program is free software: you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation, either version 3 of the License, or
+   (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program. If not, see <http://www.gnu.org/licenses/>.
+
+   On Debian systems, the complete text of the GNU General Public License
+   can be found in /usr/share/common-licenses/GPL-3 file.
+*/
+
+
+#ifndef _CHECK_H
+#define _CHECK_H
+
+loff_t alloc_rootdir_entry(DOS_FS *fs, DIR_ENT *de, const char *pattern);
+
+/* Allocate a free slot in the root directory for a new file. The file name is
+   constructed after 'pattern', which must include a %d type format for printf
+   and expand to exactly 11 characters. The name actually used is written into
+   the 'de' structure, the rest of *de is cleared. The offset returned is to
+   where in the filesystem the entry belongs. */
+
+int scan_root(DOS_FS *fs);
+
+/* Scans the root directory and recurses into all subdirectories. See check.c
+   for all the details. Returns a non-zero integer if the file system has to
+   be checked again. */
+
+#endif
diff --git a/src/common.c b/src/common.c
new file mode 100644
index 0000000..92312e4
--- /dev/null
+++ b/src/common.c
@@ -0,0 +1,125 @@
+/* common.c - Common functions
+
+   Copyright (C) 1993 Werner Almesberger <werner.almesberger@lrc.di.epfl.ch>
+   Copyright (C) 1998 Roman Hodek <Roman.Hodek@informatik.uni-erlangen.de>
+
+   This program is free software: you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation, either version 3 of the License, or
+   (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program. If not, see <http://www.gnu.org/licenses/>.
+
+   On Debian systems, the complete text of the GNU General Public License
+   can be found in /usr/share/common-licenses/GPL-3 file.
+*/
+
+/* FAT32, VFAT, Atari format support, and various fixes additions May 1998
+ * by Roman Hodek <Roman.Hodek@informatik.uni-erlangen.de> */
+
+
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+#include <stdarg.h>
+#include <errno.h>
+
+#include "common.h"
+
+
+typedef struct _link {
+    void *data;
+    struct _link *next;
+} LINK;
+
+
+void die(char *msg,...)
+{
+    va_list args;
+
+    va_start(args,msg);
+    vfprintf(stderr,msg,args);
+    va_end(args);
+    fprintf(stderr,"\n");
+    exit(1);
+}
+
+
+void pdie(char *msg,...)
+{
+    va_list args;
+
+    va_start(args,msg);
+    vfprintf(stderr,msg,args);
+    va_end(args);
+    fprintf(stderr,":%s\n",strerror(errno));
+    exit(1);
+}
+
+
+void *alloc(int size)
+{
+    void *this;
+
+    if ((this = malloc(size))) return this;
+    pdie("malloc");
+    return NULL; /* for GCC */
+}
+
+
+void *qalloc(void **root,int size)
+{
+    LINK *link;
+
+    link = alloc(sizeof(LINK));
+    link->next = *root;
+    *root = link;
+    return link->data = alloc(size);
+}
+
+
+void qfree(void **root)
+{
+    LINK *this;
+
+    while (*root) {
+	this = (LINK *) *root;
+	*root = this->next;
+	free(this->data);
+	free(this);
+    }
+}
+
+
+int min(int a,int b)
+{
+    return a < b ? a : b;
+}
+
+
+char get_key(char *valid,char *prompt)
+{
+    int ch,okay;
+
+    while (1) {
+	if (prompt) printf("%s ",prompt);
+	fflush(stdout);
+	while (ch = getchar(), ch == ' ' || ch == '\t');
+	if (ch == EOF) exit(1);
+	if (!strchr(valid,okay = ch)) okay = 0;
+	while (ch = getchar(), ch != '\n' && ch != EOF);
+	if (ch == EOF) exit(1);
+	if (okay) return okay;
+	printf("Invalid input.\n");
+    }
+}
+
+/* Local Variables: */
+/* tab-width: 8     */
+/* End:             */
diff --git a/src/common.h b/src/common.h
new file mode 100644
index 0000000..99e0be1
--- /dev/null
+++ b/src/common.h
@@ -0,0 +1,57 @@
+/* common.h - Common functions
+
+   Copyright (C) 1993 Werner Almesberger <werner.almesberger@lrc.di.epfl.ch>
+
+   This program is free software: you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation, either version 3 of the License, or
+   (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program. If not, see <http://www.gnu.org/licenses/>.
+
+   On Debian systems, the complete text of the GNU General Public License
+   can be found in /usr/share/common-licenses/GPL-3 file.
+*/
+
+# include <asm/types.h>
+
+#ifndef _COMMON_H
+#define _COMMON_H
+
+void die(char *msg,...) __attribute((noreturn));
+
+/* Displays a prinf-style message and terminates the program. */
+
+void pdie(char *msg,...) __attribute((noreturn));
+
+/* Like die, but appends an error message according to the state of errno. */
+
+void *alloc(int size);
+
+/* mallocs SIZE bytes and returns a pointer to the data. Terminates the program
+   if malloc fails. */
+
+void *qalloc(void **root,int size);
+
+/* Like alloc, but registers the data area in a list described by ROOT. */
+
+void qfree(void **root);
+
+/* Deallocates all qalloc'ed data areas described by ROOT. */
+
+int min(int a,int b);
+
+/* Returns the smaller integer value of a and b. */
+
+char get_key(char *valid,char *prompt);
+
+/* Displays PROMPT and waits for user input. Only characters in VALID are
+   accepted. Terminates the program on EOF. Returns the character. */
+
+#endif
diff --git a/src/dosfsck.c b/src/dosfsck.c
new file mode 100644
index 0000000..c4bcf1b
--- /dev/null
+++ b/src/dosfsck.c
@@ -0,0 +1,207 @@
+/* dosfsck.c - User interface
+
+   Copyright (C) 1993 Werner Almesberger <werner.almesberger@lrc.di.epfl.ch>
+   Copyright (C) 1998 Roman Hodek <Roman.Hodek@informatik.uni-erlangen.de>
+
+   This program is free software: you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation, either version 3 of the License, or
+   (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program. If not, see <http://www.gnu.org/licenses/>.
+
+   On Debian systems, the complete text of the GNU General Public License
+   can be found in /usr/share/common-licenses/GPL-3 file.
+*/
+
+/* FAT32, VFAT, Atari format support, and various fixes additions May 1998
+ * by Roman Hodek <Roman.Hodek@informatik.uni-erlangen.de> */
+
+
+#include "version.h"
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <getopt.h>
+
+#include "common.h"
+#include "dosfsck.h"
+#include "io.h"
+#include "boot.h"
+#include "fat.h"
+#include "file.h"
+#include "check.h"
+
+
+int interactive = 0,list = 0,test = 0,verbose = 0,write_immed = 0;
+int atari_format = 0;
+unsigned n_files = 0;
+void *mem_queue = NULL;
+
+
+static void usage(char *name)
+{
+    fprintf(stderr,"usage: %s [-aAflrtvVwy] [-d path -d ...] "
+      "[-u path -u ...]\n%15sdevice\n",name,"");
+    fprintf(stderr,"  -a       automatically repair the file system\n");
+    fprintf(stderr,"  -A       toggle Atari file system format\n");
+    fprintf(stderr,"  -d path  drop that file\n");
+    fprintf(stderr,"  -f       salvage unused chains to files\n");
+    fprintf(stderr,"  -l       list path names\n");
+    fprintf(stderr,"  -n       no-op, check non-interactively without changing\n");
+    fprintf(stderr,"  -p       same as -a, for compat with other *fsck\n");
+    fprintf(stderr,"  -r       interactively repair the file system\n");
+    fprintf(stderr,"  -t       test for bad clusters\n");
+    fprintf(stderr,"  -u path  try to undelete that (non-directory) file\n");
+    fprintf(stderr,"  -v       verbose mode\n");
+    fprintf(stderr,"  -V       perform a verification pass\n");
+    fprintf(stderr,"  -w       write changes to disk immediately\n");
+    fprintf(stderr,"  -y       same as -a, for compat with other *fsck\n");
+    exit(2);
+}
+
+
+/*
+ * ++roman: On m68k, check if this is an Atari; if yes, turn on Atari variant
+ * of MS-DOS filesystem by default.
+ */
+static void check_atari( void )
+{
+#ifdef __mc68000__
+    FILE *f;
+    char line[128], *p;
+
+    if (!(f = fopen( "/proc/hardware", "r" ))) {
+	perror( "/proc/hardware" );
+	return;
+    }
+
+    while( fgets( line, sizeof(line), f ) ) {
+	if (strncmp( line, "Model:", 6 ) == 0) {
+	    p = line + 6;
+	    p += strspn( p, " \t" );
+	    if (strncmp( p, "Atari ", 6 ) == 0)
+		atari_format = 1;
+	    break;
+	}
+    }
+    fclose( f );
+#endif
+}
+
+
+int main(int argc,char **argv)
+{
+    DOS_FS fs;
+    int rw,salvage_files,verify,c;
+	unsigned n_files_check=0, n_files_verify=0;
+    unsigned long free_clusters;
+
+    rw = salvage_files = verify = 0;
+    interactive = 1;
+    check_atari();
+
+    while ((c = getopt(argc,argv,"Aad:flnprtu:vVwy")) != EOF)
+	switch (c) {
+	    case 'A': /* toggle Atari format */
+	  	atari_format = !atari_format;
+		break;
+	    case 'a':
+	    case 'p':
+	    case 'y':
+		rw = 1;
+		interactive = 0;
+//		salvage_files = 1;
+		break;
+	    case 'd':
+		file_add(optarg,fdt_drop);
+		break;
+	    case 'f':
+		salvage_files = 1;
+		break;
+	    case 'l':
+		list = 1;
+		break;
+	    case 'n':
+		rw = 0;
+		interactive = 0;
+		break;
+	    case 'r':
+		rw = 1;
+		interactive = 1;
+		break;
+	    case 't':
+		test = 1;
+		break;
+	    case 'u':
+		file_add(optarg,fdt_undelete);
+		break;
+	    case 'v':
+		verbose = 1;
+		printf("dosfsck " VERSION " (" VERSION_DATE ")\n");
+		break;
+	    case 'V':
+		verify = 1;
+		break;
+	    case 'w':
+		write_immed = 1;
+		break;
+	    default:
+		usage(argv[0]);
+	}
+    if ((test || write_immed) && !rw) {
+	fprintf(stderr,"-t and -w require -a or -r\n");
+	exit(2);
+    }
+    if (optind != argc-1) usage(argv[0]);
+
+    printf( "dosfsck " VERSION ", " VERSION_DATE ", FAT32, LFN\n" );
+    fs_open(argv[optind],rw);
+    read_boot(&fs);
+    if (verify) printf("Starting check/repair pass.\n");
+    while (read_fat(&fs), scan_root(&fs)) qfree(&mem_queue);
+    if (test) fix_bad(&fs);
+    if (salvage_files) reclaim_file(&fs);
+    else reclaim_free(&fs);
+    free_clusters = update_free(&fs);
+    file_unused();
+    qfree(&mem_queue);
+	n_files_check = n_files;
+    if (verify) {
+		n_files = 0;
+		printf("Starting verification pass.\n");
+		read_fat(&fs);
+		scan_root(&fs);
+		reclaim_free(&fs);
+		qfree(&mem_queue);
+		n_files_verify = n_files;
+    }
+
+    if (fs_changed()) {
+	if (rw) {
+	    if (interactive)
+		rw = get_key("yn","Perform changes ? (y/n)") == 'y';
+	    else printf("Performing changes.\n");
+	}
+	else
+	    printf("Leaving file system unchanged.\n");
+    }
+
+    printf( "%s: %u files, %lu/%lu clusters\n", argv[optind],
+	    n_files, fs.clusters - free_clusters, fs.clusters );
+
+    exit(fs_close(rw) ? 4 : 0);
+}
+
+/* Local Variables: */
+/* tab-width: 8     */
+/* End:             */
diff --git a/src/dosfsck.h b/src/dosfsck.h
new file mode 100644
index 0000000..3d2004c
--- /dev/null
+++ b/src/dosfsck.h
@@ -0,0 +1,220 @@
+/* dosfsck.h  -  Common data structures and global variables
+
+   Copyright (C) 1993 Werner Almesberger <werner.almesberger@lrc.di.epfl.ch>
+   Copyright (C) 1998 Roman Hodek <Roman.Hodek@informatik.uni-erlangen.de>
+
+   This program is free software: you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation, either version 3 of the License, or
+   (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program. If not, see <http://www.gnu.org/licenses/>.
+
+   On Debian systems, the complete text of the GNU General Public License
+   can be found in /usr/share/common-licenses/GPL-3 file.
+*/
+
+/* FAT32, VFAT, Atari format support, and various fixes additions May 1998
+ * by Roman Hodek <Roman.Hodek@informatik.uni-erlangen.de> */
+
+
+#ifndef _DOSFSCK_H
+#define _DOSFSCK_H
+
+#include <sys/types.h>
+#define _LINUX_STAT_H		/* hack to avoid inclusion of <linux/stat.h> */
+#define _LINUX_STRING_H_	/* hack to avoid inclusion of <linux/string.h>*/
+#define _LINUX_FS_H             /* hack to avoid inclusion of <linux/fs.h> */
+
+# include <asm/types.h>
+# include <asm/byteorder.h>
+
+#include <linux/msdos_fs.h>
+
+#undef CF_LE_W
+#undef CF_LE_L
+#undef CT_LE_W
+#undef CT_LE_L
+
+#if defined __arm__
+	#undef __BYTE_ORDER
+	#define __BYTE_ORDER __LITTLE_ENDIAN
+#endif
+
+#if __BYTE_ORDER == __BIG_ENDIAN
+#include <byteswap.h>
+#define CF_LE_W(v) bswap_16(v)
+#define CF_LE_L(v) bswap_32(v)
+#define CT_LE_W(v) CF_LE_W(v)
+#define CT_LE_L(v) CF_LE_L(v)
+#else
+#define CF_LE_W(v) (v)
+#define CF_LE_L(v) (v)
+#define CT_LE_W(v) (v)
+#define CT_LE_L(v) (v)
+#endif /* __BIG_ENDIAN */
+
+#define VFAT_LN_ATTR (ATTR_RO | ATTR_HIDDEN | ATTR_SYS | ATTR_VOLUME)
+
+/* ++roman: Use own definition of boot sector structure -- the kernel headers'
+ * name for it is msdos_boot_sector in 2.0 and fat_boot_sector in 2.1 ... */
+struct boot_sector {
+    __u8	ignored[3];	/* Boot strap short or near jump */
+    __u8	system_id[8];	/* Name - can be used to special case
+				   partition manager volumes */
+    __u8	sector_size[2];	/* bytes per logical sector */
+    __u8	cluster_size;	/* sectors/cluster */
+    __u16	reserved;	/* reserved sectors */
+    __u8	fats;		/* number of FATs */
+    __u8	dir_entries[2];	/* root directory entries */
+    __u8	sectors[2];	/* number of sectors */
+    __u8	media;		/* media code (unused) */
+    __u16	fat_length;	/* sectors/FAT */
+    __u16	secs_track;	/* sectors per track */
+    __u16	heads;		/* number of heads */
+    __u32	hidden;		/* hidden sectors (unused) */
+    __u32	total_sect;	/* number of sectors (if sectors == 0) */
+
+    /* The following fields are only used by FAT32 */
+    __u32	fat32_length;	/* sectors/FAT */
+    __u16	flags;		/* bit 8: fat mirroring, low 4: active fat */
+    __u8	version[2];	/* major, minor filesystem version */
+    __u32	root_cluster;	/* first cluster in root directory */
+    __u16	info_sector;	/* filesystem info sector */
+    __u16	backup_boot;	/* backup boot sector */
+    __u8 	reserved2[12];	/* Unused */
+
+    __u8        drive_number;   /* Logical Drive Number */
+    __u8        reserved3;      /* Unused */
+
+    __u8        extended_sig;   /* Extended Signature (0x29) */
+    __u32       serial;         /* Serial number */
+    __u8        label[11];      /* FS label */
+    __u8        fs_type[8];     /* FS Type */
+
+    /* fill up to 512 bytes */
+    __u8	junk[422];
+} __attribute__ ((packed));
+
+struct boot_sector_16 {
+    __u8	ignored[3];	/* Boot strap short or near jump */
+    __u8	system_id[8];	/* Name - can be used to special case
+				   partition manager volumes */
+    __u8	sector_size[2];	/* bytes per logical sector */
+    __u8	cluster_size;	/* sectors/cluster */
+    __u16	reserved;	/* reserved sectors */
+    __u8	fats;		/* number of FATs */
+    __u8	dir_entries[2];	/* root directory entries */
+    __u8	sectors[2];	/* number of sectors */
+    __u8	media;		/* media code (unused) */
+    __u16	fat_length;	/* sectors/FAT */
+    __u16	secs_track;	/* sectors per track */
+    __u16	heads;		/* number of heads */
+    __u32	hidden;		/* hidden sectors (unused) */
+    __u32	total_sect;	/* number of sectors (if sectors == 0) */
+
+    __u8        drive_number;   /* Logical Drive Number */
+    __u8        reserved2;      /* Unused */
+
+    __u8        extended_sig;   /* Extended Signature (0x29) */
+    __u32       serial;         /* Serial number */
+    __u8        label[11];      /* FS label */
+    __u8        fs_type[8];     /* FS Type */
+
+    /* fill up to 512 bytes */
+    __u8	junk[450];
+} __attribute__ ((packed));
+
+struct info_sector {
+    __u32	magic;		/* Magic for info sector ('RRaA') */
+    __u8	junk[0x1dc];
+    __u32	reserved1;	/* Nothing as far as I can tell */
+    __u32	signature;	/* 0x61417272 ('rrAa') */
+    __u32	free_clusters;	/* Free cluster count.  -1 if unknown */
+    __u32	next_cluster;	/* Most recently allocated cluster. */
+    __u32	reserved2[3];
+    __u16	reserved3;
+    __u16	boot_sign;
+};
+
+typedef struct {
+    __u8	name[8],ext[3];	/* name and extension */
+    __u8	attr;		/* attribute bits */
+    __u8	lcase;		/* Case for base and extension */
+    __u8	ctime_ms;	/* Creation time, milliseconds */
+    __u16	ctime;		/* Creation time */
+    __u16	cdate;		/* Creation date */
+    __u16	adate;		/* Last access date */
+    __u16	starthi;	/* High 16 bits of cluster in FAT32 */
+    __u16	time,date,start;/* time, date and first cluster */
+    __u32	size;		/* file size (in bytes) */
+} DIR_ENT;
+
+typedef struct _dos_file {
+    DIR_ENT dir_ent;
+    char *lfn;
+    loff_t offset;
+    struct _dos_file *parent; /* parent directory */
+    struct _dos_file *next; /* next entry */
+    struct _dos_file *first; /* first entry (directory only) */
+} DOS_FILE;
+
+typedef struct {
+    unsigned long value;
+    unsigned long reserved;
+    DOS_FILE *owner;
+    int prev; /* number of previous clusters */
+} FAT_ENTRY;
+
+typedef struct {
+    int nfats;
+    loff_t fat_start;
+    unsigned int fat_size; /* unit is bytes */
+    unsigned int fat_bits; /* size of a FAT entry */
+    unsigned int eff_fat_bits; /* # of used bits in a FAT entry */
+    unsigned long root_cluster; /* 0 for old-style root dir */
+    loff_t root_start;
+    unsigned int root_entries;
+    loff_t data_start;
+    unsigned int cluster_size;
+    unsigned long clusters;
+    loff_t fsinfo_start; /* 0 if not present */
+    long free_clusters;
+    loff_t backupboot_start; /* 0 if not present */
+    FAT_ENTRY *fat;
+    char *label;
+} DOS_FS;
+
+#ifndef offsetof
+#define offsetof(t,e)	((int)&(((t *)0)->e))
+#endif
+
+extern int interactive,list,verbose,test,write_immed;
+extern int atari_format;
+extern unsigned n_files;
+extern void *mem_queue;
+
+/* value to use as end-of-file marker */
+#define FAT_EOF(fs)	((atari_format ? 0xfff : 0xff8) | FAT_EXTD(fs))
+#define FAT_IS_EOF(fs,v) ((unsigned long)(v) >= (0xff8|FAT_EXTD(fs)))
+/* value to mark bad clusters */
+#define FAT_BAD(fs)	(0xff7 | FAT_EXTD(fs))
+/* range of values used for bad clusters */
+#define FAT_MIN_BAD(fs)	((atari_format ? 0xff0 : 0xff7) | FAT_EXTD(fs))
+#define FAT_MAX_BAD(fs)	((atari_format ? 0xff7 : 0xff7) | FAT_EXTD(fs))
+#define FAT_IS_BAD(fs,v) ((v) >= FAT_MIN_BAD(fs) && (v) <= FAT_MAX_BAD(fs))
+
+/* return -16 as a number with fs->fat_bits bits */
+#define FAT_EXTD(fs)	(((1 << fs->eff_fat_bits)-1) & ~0xf)
+
+#endif
+
+/* Local Variables: */
+/* tab-width: 8     */
+/* End:             */
diff --git a/src/dosfslabel.c b/src/dosfslabel.c
new file mode 100644
index 0000000..e7be1f6
--- /dev/null
+++ b/src/dosfslabel.c
@@ -0,0 +1,126 @@
+/* dosfslabel.c - User interface
+
+   Copyright (C) 1993 Werner Almesberger <werner.almesberger@lrc.di.epfl.ch>
+   Copyright (C) 1998 Roman Hodek <Roman.Hodek@informatik.uni-erlangen.de>
+   Copyright (C) 2007 Red Hat, Inc.
+
+   This program is free software: you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation, either version 3 of the License, or
+   (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program. If not, see <http://www.gnu.org/licenses/>.
+
+   On Debian systems, the complete text of the GNU General Public License
+   can be found in /usr/share/common-licenses/GPL-3 file.
+*/
+
+#include "version.h"
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <getopt.h>
+
+#include "common.h"
+#include "dosfsck.h"
+#include "io.h"
+#include "boot.h"
+#include "fat.h"
+#include "file.h"
+#include "check.h"
+
+
+int interactive = 0,list = 0,test = 0,verbose = 0,write_immed = 0;
+int atari_format = 0;
+unsigned n_files = 0;
+void *mem_queue = NULL;
+
+
+static void usage(int error)
+{
+    FILE *f = error ? stderr : stdout;
+    int status = error ? 1 : 0;
+
+    fprintf(f,"usage: dosfslabel device [label]\n");
+    exit(status);
+}
+
+/*
+ * ++roman: On m68k, check if this is an Atari; if yes, turn on Atari variant
+ * of MS-DOS filesystem by default.
+ */
+static void check_atari( void )
+{
+#ifdef __mc68000__
+    FILE *f;
+    char line[128], *p;
+
+    if (!(f = fopen( "/proc/hardware", "r" ))) {
+	perror( "/proc/hardware" );
+	return;
+    }
+
+    while( fgets( line, sizeof(line), f ) ) {
+	if (strncmp( line, "Model:", 6 ) == 0) {
+	    p = line + 6;
+	    p += strspn( p, " \t" );
+	    if (strncmp( p, "Atari ", 6 ) == 0)
+		atari_format = 1;
+	    break;
+	}
+    }
+    fclose( f );
+#endif
+}
+
+
+int main(int argc, char *argv[])
+{
+    DOS_FS fs;
+    int rw = 0;
+
+    char *device = NULL;
+    char *label = NULL;
+
+    check_atari();
+
+    if (argc < 2 || argc > 3)
+        usage(1);
+
+    if (!strcmp(argv[1], "-h") || !strcmp(argv[1], "--help"))
+        usage(0);
+    else if (!strcmp(argv[1], "-V") || !strcmp(argv[1], "--version")) {
+        printf( "dosfslabel " VERSION ", " VERSION_DATE ", FAT32, LFN\n" );
+        exit(0);
+    }
+
+    device = argv[1];
+    if (argc == 3) {
+        label = argv[2];
+        if (strlen(label) > 11) {
+            fprintf(stderr,
+                    "dosfslabel: labels can be no longer than 11 characters\n");
+            exit(1);
+        }
+        rw = 1;
+    }
+
+    fs_open(device, rw);
+    read_boot(&fs);
+    if (!rw) {
+        fprintf(stdout, "%s\n", fs.label);
+        exit(0);
+    }
+
+    write_label(&fs, label);
+    return fs_close(rw) ? 1 : 0;
+}
diff --git a/src/fat.c b/src/fat.c
new file mode 100644
index 0000000..d09d888
--- /dev/null
+++ b/src/fat.c
@@ -0,0 +1,381 @@
+/* fat.c - Read/write access to the FAT
+
+   Copyright (C) 1993 Werner Almesberger <werner.almesberger@lrc.di.epfl.ch>
+   Copyright (C) 1998 Roman Hodek <Roman.Hodek@informatik.uni-erlangen.de>
+
+   This program is free software: you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation, either version 3 of the License, or
+   (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program. If not, see <http://www.gnu.org/licenses/>.
+
+   On Debian systems, the complete text of the GNU General Public License
+   can be found in /usr/share/common-licenses/GPL-3 file.
+*/
+
+/* FAT32, VFAT, Atari format support, and various fixes additions May 1998
+ * by Roman Hodek <Roman.Hodek@informatik.uni-erlangen.de> */
+
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+
+#include "common.h"
+#include "dosfsck.h"
+#include "io.h"
+#include "check.h"
+#include "fat.h"
+
+
+static void get_fat(FAT_ENTRY *entry,void *fat,unsigned long cluster,DOS_FS *fs)
+{
+    unsigned char *ptr;
+
+    switch(fs->fat_bits) {
+      case 12:
+	ptr = &((unsigned char *) fat)[cluster*3/2];
+	entry->value = 0xfff & (cluster & 1 ? (ptr[0] >> 4) | (ptr[1] << 4) :
+	  (ptr[0] | ptr[1] << 8));
+	break;
+      case 16:
+	entry->value = CF_LE_W(((unsigned short *) fat)[cluster]);
+	break;
+      case 32:
+	/* According to M$, the high 4 bits of a FAT32 entry are reserved and
+	 * are not part of the cluster number. So we cut them off. */
+	{
+	    unsigned long e = CF_LE_L(((unsigned int *) fat)[cluster]);
+	    entry->value = e & 0xfffffff;
+	    entry->reserved = e >> 28;
+	}
+	break;
+      default:
+	die("Bad FAT entry size: %d bits.",fs->fat_bits);
+    }
+    entry->owner = NULL;
+}
+
+
+void read_fat(DOS_FS *fs)
+{
+    int eff_size;
+    unsigned long i;
+    void *first,*second = NULL;
+    int first_ok,second_ok;
+
+    eff_size = ((fs->clusters+2ULL)*fs->fat_bits+7)/8ULL;
+    first = alloc(eff_size);
+    fs_read(fs->fat_start,eff_size,first);
+    if (fs->nfats > 1) {
+	second = alloc(eff_size);
+	fs_read(fs->fat_start+fs->fat_size,eff_size,second);
+    }
+    if (second && memcmp(first,second,eff_size) != 0) {
+	FAT_ENTRY first_media, second_media;
+	get_fat(&first_media,first,0,fs);
+	get_fat(&second_media,second,0,fs);
+	first_ok = (first_media.value & FAT_EXTD(fs)) == FAT_EXTD(fs);
+	second_ok = (second_media.value & FAT_EXTD(fs)) == FAT_EXTD(fs);
+	if (first_ok && !second_ok) {
+	    printf("FATs differ - using first FAT.\n");
+	    fs_write(fs->fat_start+fs->fat_size,eff_size,first);
+	}
+	if (!first_ok && second_ok) {
+	    printf("FATs differ - using second FAT.\n");
+	    fs_write(fs->fat_start,eff_size,second);
+	    memcpy(first,second,eff_size);
+	}
+	if (first_ok && second_ok) {
+	    if (interactive) {
+		printf("FATs differ but appear to be intact. Use which FAT ?\n"
+		  "1) Use first FAT\n2) Use second FAT\n");
+		if (get_key("12","?") == '1') {
+		    fs_write(fs->fat_start+fs->fat_size,eff_size,first);
+		} else {
+		    fs_write(fs->fat_start,eff_size,second);
+		    memcpy(first,second,eff_size);
+		}
+	    }
+	    else {
+		printf("FATs differ but appear to be intact. Using first "
+		  "FAT.\n");
+		fs_write(fs->fat_start+fs->fat_size,eff_size,first);
+	    }
+	}
+	if (!first_ok && !second_ok) {
+	    printf("Both FATs appear to be corrupt. Giving up.\n");
+	    exit(1);
+	}
+    }
+    if (second) {
+          free(second);
+    }
+    fs->fat = qalloc(&mem_queue,sizeof(FAT_ENTRY)*(fs->clusters+2ULL));
+    for (i = 2; i < fs->clusters+2; i++) get_fat(&fs->fat[i],first,i,fs);
+    for (i = 2; i < fs->clusters+2; i++)
+	if (fs->fat[i].value >= fs->clusters+2 &&
+	    (fs->fat[i].value < FAT_MIN_BAD(fs))) {
+	    printf("Cluster %ld out of range (%ld > %ld). Setting to EOF.\n",
+		   i-2,fs->fat[i].value,fs->clusters+2-1);
+	    set_fat(fs,i,-1);
+	}
+    free(first);
+}
+
+
+void set_fat(DOS_FS *fs,unsigned long cluster,unsigned long new)
+{
+    unsigned char data[4];
+    int size;
+    loff_t offs;
+
+    if ((long)new == -1)
+	new = FAT_EOF(fs);
+    else if ((long)new == -2)
+	new = FAT_BAD(fs);
+    switch( fs->fat_bits ) {
+      case 12:
+	offs = fs->fat_start+cluster*3/2;
+	if (cluster & 1) {
+	    data[0] = ((new & 0xf) << 4) | (fs->fat[cluster-1].value >> 8);
+	    data[1] = new >> 4;
+	}
+	else {
+	    data[0] = new & 0xff;
+	    data[1] = (new >> 8) | (cluster == fs->clusters-1 ? 0 :
+	      (0xff & fs->fat[cluster+1].value) << 4);
+	}
+	size = 2;
+	break;
+      case 16:
+	offs = fs->fat_start+cluster*2;
+	*(unsigned short *) data = CT_LE_W(new);
+	size = 2;
+	break;
+      case 32:
+	offs = fs->fat_start+cluster*4;
+	/* According to M$, the high 4 bits of a FAT32 entry are reserved and
+	 * are not part of the cluster number. So we never touch them. */
+	*(unsigned long *) data = CT_LE_L( (new & 0xfffffff) |
+					   (fs->fat[cluster].reserved << 28) );
+	size = 4;
+	break;
+      default:
+	die("Bad FAT entry size: %d bits.",fs->fat_bits);
+    }
+    fs->fat[cluster].value = new;
+    fs_write(offs,size,&data);
+    fs_write(offs+fs->fat_size,size,&data);
+}
+
+
+int bad_cluster(DOS_FS *fs,unsigned long cluster)
+{
+    return FAT_IS_BAD(fs,fs->fat[cluster].value);
+}
+
+
+unsigned long next_cluster(DOS_FS *fs,unsigned long cluster)
+{
+    unsigned long value;
+
+    value = fs->fat[cluster].value;
+    if (FAT_IS_BAD(fs,value))
+	die("Internal error: next_cluster on bad cluster");
+    return FAT_IS_EOF(fs,value) ? -1 : value;
+}
+
+
+loff_t cluster_start(DOS_FS *fs,unsigned long cluster)
+{
+    return fs->data_start+((loff_t)cluster-2)*(unsigned long long)fs->cluster_size;
+}
+
+
+void set_owner(DOS_FS *fs,unsigned long cluster,DOS_FILE *owner)
+{
+    if (owner && fs->fat[cluster].owner)
+	die("Internal error: attempt to change file owner");
+    fs->fat[cluster].owner = owner;
+}
+
+
+DOS_FILE *get_owner(DOS_FS *fs,unsigned long cluster)
+{
+    return fs->fat[cluster].owner;
+}
+
+
+void fix_bad(DOS_FS *fs)
+{
+    unsigned long i;
+
+    if (verbose)
+	printf("Checking for bad clusters.\n");
+    for (i = 2; i < fs->clusters+2; i++)
+	if (!get_owner(fs,i) && !FAT_IS_BAD(fs,fs->fat[i].value))
+	    if (!fs_test(cluster_start(fs,i),fs->cluster_size)) {
+		printf("Cluster %lu is unreadable.\n",i);
+		set_fat(fs,i,-2);
+	    }
+}
+
+
+void reclaim_free(DOS_FS *fs)
+{
+    int reclaimed;
+    unsigned long i;
+
+    if (verbose)
+	printf("Checking for unused clusters.\n");
+    reclaimed = 0;
+    for (i = 2; i < fs->clusters+2; i++)
+	if (!get_owner(fs,i) && fs->fat[i].value &&
+	    !FAT_IS_BAD(fs,fs->fat[i].value)) {
+	    set_fat(fs,i,0);
+	    reclaimed++;
+	}
+    if (reclaimed)
+	printf("Reclaimed %d unused cluster%s (%llu bytes).\n",reclaimed,
+	  reclaimed == 1 ?  "" : "s",(unsigned long long)reclaimed*fs->cluster_size);
+}
+
+
+static void tag_free(DOS_FS *fs,DOS_FILE *ptr)
+{
+    DOS_FILE *owner;
+    int prev;
+    unsigned long i,walk;
+
+    for (i = 2; i < fs->clusters+2; i++)
+	if (fs->fat[i].value && !FAT_IS_BAD(fs,fs->fat[i].value) &&
+	    !get_owner(fs,i) && !fs->fat[i].prev) {
+	    prev = 0;
+	    for (walk = i; walk > 0 && walk != -1;
+		 walk = next_cluster(fs,walk)) {
+		if (!(owner = get_owner(fs,walk))) set_owner(fs,walk,ptr);
+		else if (owner != ptr)
+		        die("Internal error: free chain collides with file");
+		    else {
+			set_fat(fs,prev,-1);
+			break;
+		    }
+		prev = walk;
+	    }
+	}
+}
+
+
+void reclaim_file(DOS_FS *fs)
+{
+    DOS_FILE dummy;
+    int reclaimed,files,changed;
+    unsigned long i,next,walk;
+
+    if (verbose)
+	printf("Reclaiming unconnected clusters.\n");
+    for (i = 2; i < fs->clusters+2; i++) fs->fat[i].prev = 0;
+    for (i = 2; i < fs->clusters+2; i++) {
+	next = fs->fat[i].value;
+	if (!get_owner(fs,i) && next && next < fs->clusters+2) {
+	    if (get_owner(fs,next) || !fs->fat[next].value ||
+		FAT_IS_BAD(fs,fs->fat[next].value)) set_fat(fs,i,-1);
+	    else fs->fat[next].prev++;
+	}
+    }
+    do {
+	tag_free(fs,&dummy);
+	changed = 0;
+	for (i = 2; i < fs->clusters+2; i++)
+	    if (fs->fat[i].value && !FAT_IS_BAD(fs,fs->fat[i].value) &&
+		!get_owner(fs, i)) {
+		if (!fs->fat[fs->fat[i].value].prev--)
+		    die("Internal error: prev going below zero");
+		set_fat(fs,i,-1);
+		changed = 1;
+		printf("Broke cycle at cluster %lu in free chain.\n",i);
+		break;
+	    }
+    }
+    while (changed);
+    files = reclaimed = 0;
+    for (i = 2; i < fs->clusters+2; i++)
+	if (get_owner(fs,i) == &dummy && !fs->fat[i].prev) {
+	    DIR_ENT de;
+	    loff_t offset;
+	    files++;
+	    offset = alloc_rootdir_entry(fs,&de,"FSCK%04dREC");
+	    de.start = CT_LE_W(i&0xffff);
+	    if (fs->fat_bits == 32)
+		de.starthi = CT_LE_W(i>>16);
+	    for (walk = i; walk > 0 && walk != -1;
+		 walk = next_cluster(fs,walk)) {
+		de.size = CT_LE_L(CF_LE_L(de.size)+fs->cluster_size);
+		reclaimed++;
+	    }
+	    fs_write(offset,sizeof(DIR_ENT),&de);
+	}
+    if (reclaimed)
+	printf("Reclaimed %d unused cluster%s (%llu bytes) in %d chain%s.\n",
+	  reclaimed,reclaimed == 1 ? "" : "s",(unsigned long long)reclaimed*fs->cluster_size,files,
+	  files == 1 ? "" : "s");
+}
+
+
+unsigned long update_free(DOS_FS *fs)
+{
+    unsigned long i;
+    unsigned long free = 0;
+    int do_set = 0;
+
+    for (i = 2; i < fs->clusters+2; i++)
+	if (!get_owner(fs,i) && !FAT_IS_BAD(fs,fs->fat[i].value))
+	    ++free;
+
+    if (!fs->fsinfo_start)
+	return free;
+
+    if (verbose)
+	printf("Checking free cluster summary.\n");
+    if (fs->free_clusters >= 0) {
+	if (free != fs->free_clusters) {
+	    printf( "Free cluster summary wrong (%ld vs. really %ld)\n",
+		    fs->free_clusters,free);
+	    if (interactive)
+		printf( "1) Correct\n2) Don't correct\n" );
+	    else printf( "  Auto-correcting.\n" );
+	    if (!interactive || get_key("12","?") == '1')
+		do_set = 1;
+	}
+    }
+    else {
+	printf( "Free cluster summary uninitialized (should be %ld)\n", free );
+	if (interactive)
+	    printf( "1) Set it\n2) Leave it uninitialized\n" );
+	else printf( "  Auto-setting.\n" );
+	if (!interactive || get_key("12","?") == '1')
+	    do_set = 1;
+    }
+
+    if (do_set) {
+	fs->free_clusters = free;
+	free = CT_LE_L(free);
+	fs_write(fs->fsinfo_start+offsetof(struct info_sector,free_clusters),
+		 sizeof(free),&free);
+    }
+
+    return free;
+}
+
+/* Local Variables: */
+/* tab-width: 8     */
+/* End:             */
diff --git a/src/fat.h b/src/fat.h
new file mode 100644
index 0000000..c5f7849
--- /dev/null
+++ b/src/fat.h
@@ -0,0 +1,81 @@
+/* fat.h - Read/write access to the FAT
+
+   Copyright (C) 1993 Werner Almesberger <werner.almesberger@lrc.di.epfl.ch>
+
+   This program is free software: you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation, either version 3 of the License, or
+   (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program. If not, see <http://www.gnu.org/licenses/>.
+
+   On Debian systems, the complete text of the GNU General Public License
+   can be found in /usr/share/common-licenses/GPL-3 file.
+*/
+
+
+#ifndef _FAT_H
+#define _FAT_H
+
+void read_fat(DOS_FS *fs);
+
+/* Loads the FAT of the file system described by FS. Initializes the FAT,
+   replaces broken FATs and rejects invalid cluster entries. */
+
+void set_fat(DOS_FS *fs,unsigned long cluster,unsigned long new);
+
+/* Changes the value of the CLUSTERth cluster of the FAT of FS to NEW. Special
+   values of NEW are -1 (EOF, 0xff8 or 0xfff8) and -2 (bad sector, 0xff7 or
+   0xfff7) */
+
+int bad_cluster(DOS_FS *fs,unsigned long cluster);
+
+/* Returns a non-zero integer if the CLUSTERth cluster is marked as bad or zero
+   otherwise. */
+
+unsigned long next_cluster(DOS_FS *fs,unsigned long cluster);
+
+/* Returns the number of the cluster following CLUSTER, or -1 if this is the
+   last cluster of the respective cluster chain. CLUSTER must not be a bad
+   cluster. */
+
+loff_t cluster_start(DOS_FS *fs,unsigned long cluster);
+
+/* Returns the byte offset of CLUSTER, relative to the respective device. */
+
+void set_owner(DOS_FS *fs,unsigned long cluster,DOS_FILE *owner);
+
+/* Sets the owner pointer of the respective cluster to OWNER. If OWNER was NULL
+   before, it can be set to NULL or any non-NULL value. Otherwise, only NULL is
+   accepted as the new value. */
+
+DOS_FILE *get_owner(DOS_FS *fs,unsigned long cluster);
+
+/* Returns the owner of the repective cluster or NULL if the cluster has no
+   owner. */
+
+void fix_bad(DOS_FS *fs);
+
+/* Scans the disk for currently unused bad clusters and marks them as bad. */
+
+void reclaim_free(DOS_FS *fs);
+
+/* Marks all allocated, but unused clusters as free. */
+
+void reclaim_file(DOS_FS *fs);
+
+/* Scans the FAT for chains of allocated, but unused clusters and creates files
+   for them in the root directory. Also tries to fix all inconsistencies (e.g.
+   loops, shared clusters, etc.) in the process. */
+
+unsigned long update_free(DOS_FS *fs);
+
+/* Updates free cluster count in FSINFO sector. */
+
+#endif
diff --git a/src/file.c b/src/file.c
new file mode 100644
index 0000000..c389c60
--- /dev/null
+++ b/src/file.c
@@ -0,0 +1,263 @@
+/* file.c - Additional file attributes
+
+   Copyright (C) 1993 Werner Almesberger <werner.almesberger@lrc.di.epfl.ch>
+   Copyright (C) 1998 Roman Hodek <Roman.Hodek@informatik.uni-erlangen.de>
+
+   This program is free software: you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation, either version 3 of the License, or
+   (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program. If not, see <http://www.gnu.org/licenses/>.
+
+   On Debian systems, the complete text of the GNU General Public License
+   can be found in /usr/share/common-licenses/GPL-3 file.
+*/
+
+/* FAT32, VFAT, Atari format support, and various fixes additions May 1998
+ * by Roman Hodek <Roman.Hodek@informatik.uni-erlangen.de> */
+
+
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+#include <ctype.h>
+#include <unistd.h>
+
+#define _LINUX_STAT_H		/* hack to avoid inclusion of <linux/stat.h> */
+#define _LINUX_STRING_H_	/* hack to avoid inclusion of <linux/string.h>*/
+#define _LINUX_FS_H             /* hack to avoid inclusion of <linux/fs.h> */
+
+# include <asm/types.h>
+
+#include <linux/msdos_fs.h>
+
+#include "common.h"
+#include "file.h"
+
+
+FDSC *fp_root = NULL;
+
+
+static void put_char(char **p,unsigned char c)
+{
+    if ((c >= ' ' && c < 0x7f) || c >= 0xa0) *(*p)++ = c;
+    else {
+	*(*p)++ = '\\';
+	*(*p)++ = '0'+(c >> 6);
+	*(*p)++ = '0'+((c >> 3) & 7);
+	*(*p)++ = '0'+(c & 7);
+    }
+}
+
+
+char *file_name(unsigned char *fixed)
+{
+    static char path[MSDOS_NAME*4+2];
+    char *p;
+    int i,j;
+
+    p = path;
+    for (i = j =  0; i < 8; i++)
+	if (fixed[i] != ' ') {
+	    while (j++ < i) *p++ = ' ';
+	    put_char(&p,fixed[i]);
+	}
+    if (strncmp(fixed+8,"   ",3)) {
+	*p++ = '.';
+	for (i = j =  0; i < 3; i++)
+	    if (fixed[i+8] != ' ') {
+		while (j++ < i) *p++ = ' ';
+		put_char(&p,fixed[i+8]);
+	    }
+    }
+    *p = 0;
+    return path;
+}
+
+
+int file_cvt(unsigned char *name,unsigned char *fixed)
+{
+    unsigned char c;
+    int size,ext,cnt;
+
+    size = 8;
+    ext = 0;
+    while (*name) {
+	c = *name;
+	if (c < ' ' || c > 0x7e || strchr("*?<>|\"/",c)) {
+	    printf("Invalid character in name. Use \\ooo for special "
+	      "characters.\n");
+	    return 0;
+	}
+	if (c == '.') {
+	    if (ext) {
+		printf("Duplicate dots in name.\n");
+		return 0;
+	    }
+	    while (size--) *fixed++ = ' ';
+	    size = 3;
+	    ext = 1;
+	    name++;
+	    continue;
+	}
+	if (c == '\\') {
+	    c = 0;
+	    for (cnt = 3; cnt; cnt--) {
+		if (*name < '0' || *name > '7') {
+		    printf("Invalid octal character.\n");
+		    return 0;
+		}
+		c = c*8+*name++-'0';
+	    }
+	    if (cnt < 4) {
+		printf("Expected three octal digits.\n");
+		return 0;
+	    }
+	    name += 3;
+	}
+	if (islower(c)) c = toupper(c);
+	if (size) {
+	    *fixed++ = c;
+	    size--;
+	}
+	name++;
+    }
+    if (*name || size == 8) return 0;
+    if (!ext) {
+	while (size--) *fixed++ = ' ';
+	size = 3;
+    }
+    while (size--) *fixed++ = ' ';
+    return 1;
+}
+
+
+void file_add(char *path,FD_TYPE type)
+{
+    FDSC **current,*walk;
+    char name[MSDOS_NAME];
+    char *here;
+
+    current = &fp_root;
+    if (*path != '/') die("%s: Absolute path required.",path);
+    path++;
+    while (1) {
+	if ((here = strchr(path,'/'))) *here = 0;
+	if (!file_cvt(path,name)) exit(2);
+	for (walk = *current; walk; walk = walk->next)
+	    if (!here && (!strncmp(name,walk->name,MSDOS_NAME) || (type ==
+	      fdt_undelete && !strncmp(name+1,walk->name+1,MSDOS_NAME-1))))
+		die("Ambiguous name: \"%s\"",path);
+	    else if (here && !strncmp(name,walk->name,MSDOS_NAME)) break;
+	if (!walk) {
+	    walk = alloc(sizeof(FDSC));
+	    strncpy(walk->name,name,MSDOS_NAME);
+	    walk->type = here ? fdt_none : type;
+	    walk->first = NULL;
+	    walk->next = *current;
+	    *current = walk;
+	}
+	current = &walk->first;
+	if (!here) break;
+	*here = '/';
+	path = here+1;
+    }
+}
+
+
+FDSC **file_cd(FDSC **curr,char *fixed)
+{
+    FDSC **walk;
+
+    if (!curr || !*curr) return NULL;
+    for (walk = curr; *walk; walk = &(*walk)->next)
+	if (!strncmp((*walk)->name,fixed,MSDOS_NAME) && (*walk)->first)
+	    return &(*walk)->first;
+    return NULL;
+}
+
+
+static FDSC **file_find(FDSC **dir,char *fixed)
+{
+    if (!dir || !*dir) return NULL;
+    if (*(unsigned char *) fixed == DELETED_FLAG) {
+	while (*dir) {
+	    if (!strncmp((*dir)->name+1,fixed+1,MSDOS_NAME-1) && !(*dir)->first)
+		return dir;
+	    dir = &(*dir)->next;
+	}
+	return NULL;
+    }
+    while (*dir) {
+	if (!strncmp((*dir)->name,fixed,MSDOS_NAME) && !(*dir)->first)
+	    return dir;
+	dir = &(*dir)->next;
+    }
+    return NULL;
+}
+
+
+FD_TYPE file_type(FDSC **curr,char *fixed)
+{
+    FDSC **this;
+
+    if ((this = file_find(curr,fixed))) return (*this)->type;
+    return fdt_none;
+}
+
+
+void file_modify(FDSC **curr,char *fixed)
+{
+    FDSC **this,*next;
+
+    if (!(this = file_find(curr,fixed)))
+	die("Internal error: file_find failed");
+    switch ((*this)->type) {
+	case fdt_drop:
+	    printf("Dropping %s\n",file_name(fixed));
+	    *(unsigned char *) fixed = DELETED_FLAG;
+	    break;
+	case fdt_undelete:
+	    *fixed = *(*this)->name;
+	    printf("Undeleting %s\n",file_name(fixed));
+	    break;
+	default:
+	    die("Internal error: file_modify");
+    }
+    next = (*this)->next;
+    free(*this);
+    *this = next;
+}
+
+
+static void report_unused(FDSC *this)
+{
+    FDSC *next;
+
+    while (this) {
+	next = this->next;
+	if (this->first) report_unused(this->first);
+	else if (this->type != fdt_none)
+		printf("Warning: did not %s file %s\n",this->type == fdt_drop ?
+		  "drop" : "undelete",file_name(this->name));
+	free(this);
+	this = next;
+    }
+}
+
+
+void file_unused(void)
+{
+    report_unused(fp_root);
+}
+
+/* Local Variables: */
+/* tab-width: 8     */
+/* End:             */
diff --git a/src/file.h b/src/file.h
new file mode 100644
index 0000000..b38523b
--- /dev/null
+++ b/src/file.h
@@ -0,0 +1,72 @@
+/* file.h - Additional file attributes
+
+   Copyright (C) 1993 Werner Almesberger <werner.almesberger@lrc.di.epfl.ch>
+
+   This program is free software: you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation, either version 3 of the License, or
+   (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program. If not, see <http://www.gnu.org/licenses/>.
+
+   On Debian systems, the complete text of the GNU General Public License
+   can be found in /usr/share/common-licenses/GPL-3 file.
+*/
+
+
+#ifndef _FILE_H
+#define _FILE_H
+
+typedef enum { fdt_none,fdt_drop,fdt_undelete } FD_TYPE;
+
+typedef struct _fptr {
+    char name[MSDOS_NAME];
+    FD_TYPE type;
+    struct _fptr *first; /* first entry */
+    struct _fptr *next; /* next file in directory */
+} FDSC;
+
+
+extern FDSC *fp_root;
+
+
+char *file_name(unsigned char *fixed);
+
+/* Returns a pointer to a pretty-printed representation of a fixed MS-DOS file
+   name. */
+
+int file_cvt(unsigned char *name,unsigned char *fixed);
+
+/* Converts a pretty-printed file name to the fixed MS-DOS format. Returns a
+   non-zero integer on success, zero on failure. */
+
+void file_add(char *path,FD_TYPE type);
+
+/* Define special attributes for a path. TYPE can be either FDT_DROP or
+   FDT_UNDELETE. */
+
+FDSC **file_cd(FDSC **curr,char *fixed);
+
+/* Returns a pointer to the directory descriptor of the subdirectory FIXED of
+   CURR, or NULL if no such subdirectory exists. */
+
+FD_TYPE file_type(FDSC **curr,char *fixed);
+
+/* Returns the attribute of the file FIXED in directory CURR or FDT_NONE if no
+   such file exists or if CURR is NULL. */
+
+void file_modify(FDSC **curr,char *fixed);
+
+/* Performs the necessary operation on the entry of CURR that is named FIXED. */
+
+void file_unused(void);
+
+/* Displays warnings for all unused file attributes. */
+
+#endif
diff --git a/src/io.c b/src/io.c
new file mode 100644
index 0000000..0ab0bbf
--- /dev/null
+++ b/src/io.c
@@ -0,0 +1,209 @@
+/* io.c - Virtual disk input/output
+
+   Copyright (C) 1993 Werner Almesberger <werner.almesberger@lrc.di.epfl.ch>
+   Copyright (C) 1998 Roman Hodek <Roman.Hodek@informatik.uni-erlangen.de>
+
+   This program is free software: you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation, either version 3 of the License, or
+   (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program. If not, see <http://www.gnu.org/licenses/>.
+
+   On Debian systems, the complete text of the GNU General Public License
+   can be found in /usr/share/common-licenses/GPL-3 file.
+*/
+
+/*
+ * Thu Feb 26 01:15:36 CET 1998: Martin Schulze <joey@infodrom.north.de>
+ *	Fixed nasty bug that caused every file with a name like
+ *	xxxxxxxx.xxx to be treated as bad name that needed to be fixed.
+ */
+
+/* FAT32, VFAT, Atari format support, and various fixes additions May 1998
+ * by Roman Hodek <Roman.Hodek@informatik.uni-erlangen.de> */
+
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+#include <unistd.h>
+#include <sys/stat.h>
+#include <sys/ioctl.h>
+#include <errno.h>
+#include <fcntl.h>
+#include <linux/fd.h>
+
+#include "dosfsck.h"
+#include "common.h"
+#include "io.h"
+
+
+typedef struct _change {
+    void *data;
+    loff_t pos;
+    int size;
+    struct _change *next;
+} CHANGE;
+
+
+static CHANGE *changes,*last;
+static int fd,did_change = 0;
+
+unsigned device_no;
+
+
+#ifdef __DJGPP__
+#include "volume.h"	/* DOS lowlevel disk access functions */
+#undef llseek
+static loff_t llseek( int fd, loff_t offset, int whence )
+{
+    if ((whence != SEEK_SET) || (fd == 4711)) return -1; /* only those supported */
+    return VolumeSeek(offset);
+}
+#define open OpenVolume
+#define close CloseVolume
+#define read(a,b,c) ReadVolume(b,c)
+#define write(a,b,c) WriteVolume(b,c)
+#endif
+
+void fs_open(char *path,int rw)
+{
+    struct stat stbuf;
+
+    if ((fd = open(path,rw ? O_RDWR : O_RDONLY)) < 0)
+	pdie("open %s",path);
+    changes = last = NULL;
+    did_change = 0;
+
+#ifndef _DJGPP_
+    if (fstat(fd,&stbuf) < 0)
+	pdie("fstat %s",path);
+    device_no = S_ISBLK(stbuf.st_mode) ? (stbuf.st_rdev >> 8) & 0xff : 0;
+#else
+    if (IsWorkingOnImageFile()) {
+	if (fstat(GetVolumeHandle(),&stbuf) < 0)
+	    pdie("fstat image %s",path);
+	device_no = 0;
+    }
+    else {
+        /* return 2 for floppy, 1 for ramdisk, 7 for loopback  */
+        /* used by boot.c in Atari mode: floppy always FAT12,  */
+        /* loopback / ramdisk only FAT12 if usual floppy size, */
+        /* harddisk always FAT16 on Atari... */
+        device_no = (GetVolumeHandle() < 2) ? 2 : 1;
+        /* telling "floppy" for A:/B:, "ramdisk" for the rest */
+    }
+#endif
+}
+
+
+void fs_read(loff_t pos,int size,void *data)
+{
+    CHANGE *walk;
+    int got;
+
+    if (llseek(fd,pos,0) != pos) pdie("Seek to %lld",pos);
+    if ((got = read(fd,data,size)) < 0) pdie("Read %d bytes at %lld",size,pos);
+    if (got != size) die("Got %d bytes instead of %d at %lld",got,size,pos);
+    for (walk = changes; walk; walk = walk->next) {
+	if (walk->pos < pos+size && walk->pos+walk->size > pos) {
+	    if (walk->pos < pos)
+		memcpy(data,(char *) walk->data+pos-walk->pos,min(size,
+		  walk->size-pos+walk->pos));
+	    else memcpy((char *) data+walk->pos-pos,walk->data,min(walk->size,
+		  size+pos-walk->pos));
+	}
+    }
+}
+
+
+int fs_test(loff_t pos,int size)
+{
+    void *scratch;
+    int okay;
+
+    if (llseek(fd,pos,0) != pos) pdie("Seek to %lld",pos);
+    scratch = alloc(size);
+    okay = read(fd,scratch,size) == size;
+    free(scratch);
+    return okay;
+}
+
+
+void fs_write(loff_t pos,int size,void *data)
+{
+    CHANGE *new;
+    int did;
+
+    if (write_immed) {
+	did_change = 1;
+	if (llseek(fd,pos,0) != pos) pdie("Seek to %lld",pos);
+	if ((did = write(fd,data,size)) == size) return;
+	if (did < 0) pdie("Write %d bytes at %lld",size,pos);
+	die("Wrote %d bytes instead of %d at %lld",did,size,pos);
+    }
+    new = alloc(sizeof(CHANGE));
+    new->pos = pos;
+    memcpy(new->data = alloc(new->size = size),data,size);
+    new->next = NULL;
+    if (last) last->next = new;
+    else changes = new;
+    last = new;
+}
+
+
+static void fs_flush(void)
+{
+    CHANGE *this;
+    int size;
+
+    while (changes) {
+	this = changes;
+	changes = changes->next;
+	if (llseek(fd,this->pos,0) != this->pos)
+	    fprintf(stderr,"Seek to %lld failed: %s\n  Did not write %d bytes.\n",
+	      (long long)this->pos,strerror(errno),this->size);
+	else if ((size = write(fd,this->data,this->size)) < 0)
+		fprintf(stderr,"Writing %d bytes at %lld failed: %s\n",this->size,
+		  (long long)this->pos,strerror(errno));
+	    else if (size != this->size)
+		    fprintf(stderr,"Wrote %d bytes instead of %d bytes at %lld."
+		      "\n",size,this->size,(long long)this->pos);
+	free(this->data);
+	free(this);
+    }
+}
+
+
+int fs_close(int write)
+{
+    CHANGE *next;
+    int changed;
+
+    changed = !!changes;
+    if (write) fs_flush();
+    else while (changes) {
+	    next = changes->next;
+	    free(changes->data);
+	    free(changes);
+	    changes = next;
+	}
+    if (close(fd) < 0) pdie("closing file system");
+    return changed || did_change;
+}
+
+
+int fs_changed(void)
+{
+    return !!changes || did_change;
+}
+
+/* Local Variables: */
+/* tab-width: 8     */
+/* End:             */
diff --git a/src/io.h b/src/io.h
new file mode 100644
index 0000000..ba0c35b
--- /dev/null
+++ b/src/io.h
@@ -0,0 +1,71 @@
+/* io.h - Virtual disk input/output
+
+   Copyright (C) 1993 Werner Almesberger <werner.almesberger@lrc.di.epfl.ch>
+   Copyright (C) 1998 Roman Hodek <Roman.Hodek@informatik.uni-erlangen.de>
+
+   This program is free software: you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation, either version 3 of the License, or
+   (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program. If not, see <http://www.gnu.org/licenses/>.
+
+   On Debian systems, the complete text of the GNU General Public License
+   can be found in /usr/share/common-licenses/GPL-3 file.
+*/
+
+/* FAT32, VFAT, Atari format support, and various fixes additions May 1998
+ * by Roman Hodek <Roman.Hodek@informatik.uni-erlangen.de> */
+
+
+#ifndef _IO_H
+#define _IO_H
+
+#include <sys/types.h> /* for loff_t */
+
+/* In earlier versions, an own llseek() was used, but glibc lseek() is
+ * sufficient (or even better :) for 64 bit offsets in the meantime */
+#define llseek lseek64
+
+void fs_open(char *path,int rw);
+
+/* Opens the file system PATH. If RW is zero, the file system is opened
+   read-only, otherwise, it is opened read-write. */
+
+void fs_read(loff_t pos,int size,void *data);
+
+/* Reads SIZE bytes starting at POS into DATA. Performs all applicable
+   changes. */
+
+int fs_test(loff_t pos,int size);
+
+/* Returns a non-zero integer if SIZE bytes starting at POS can be read without
+   errors. Otherwise, it returns zero. */
+
+void fs_write(loff_t pos,int size,void *data);
+
+/* If write_immed is non-zero, SIZE bytes are written from DATA to the disk,
+   starting at POS. If write_immed is zero, the change is added to a list in
+   memory. */
+
+int fs_close(int write);
+
+/* Closes the file system, performs all pending changes if WRITE is non-zero
+   and removes the list of changes. Returns a non-zero integer if the file
+   system has been changed since the last fs_open, zero otherwise. */
+
+int fs_changed(void);
+
+/* Determines whether the file system has changed. See fs_close. */
+
+extern unsigned device_no;
+
+/* Major number of device (0 if file) and size (in 512 byte sectors) */
+
+#endif
diff --git a/src/lfn.c b/src/lfn.c
new file mode 100644
index 0000000..b0db160
--- /dev/null
+++ b/src/lfn.c
@@ -0,0 +1,495 @@
+/* lfn.c - Functions for handling VFAT long filenames
+
+   Copyright (C) 1998 Roman Hodek <Roman.Hodek@informatik.uni-erlangen.de>
+
+   This program is free software: you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation, either version 3 of the License, or
+   (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program. If not, see <http://www.gnu.org/licenses/>.
+
+   On Debian systems, the complete text of the GNU General Public License
+   can be found in /usr/share/common-licenses/GPL-3 file.
+*/
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <limits.h>
+#include <time.h>
+
+#include "common.h"
+#include "io.h"
+#include "dosfsck.h"
+#include "lfn.h"
+#include "file.h"
+
+typedef struct {
+	__u8    id;		/* sequence number for slot */
+	__u8    name0_4[10];	/* first 5 characters in name */
+	__u8    attr;		/* attribute byte */
+	__u8    reserved;	/* always 0 */
+	__u8    alias_checksum;	/* checksum for 8.3 alias */
+	__u8    name5_10[12];	/* 6 more characters in name */
+	__u16   start;		/* starting cluster number, 0 in long slots */
+	__u8    name11_12[4];	/* last 2 characters in name */
+} LFN_ENT;
+
+#define LFN_ID_START	0x40
+#define LFN_ID_SLOTMASK	0x1f
+
+#define CHARS_PER_LFN	13
+
+/* These modul-global vars represent the state of the LFN parser */
+unsigned char *lfn_unicode = NULL;
+unsigned char lfn_checksum;
+int lfn_slot = -1;
+loff_t *lfn_offsets = NULL;
+int lfn_parts = 0;
+
+static unsigned char fat_uni2esc[64] = {
+    '0', '1', '2', '3', '4', '5', '6', '7',
+    '8', '9', 'A', 'B', 'C', 'D', 'E', 'F',
+    'G', 'H', 'I', 'J', 'K', 'L', 'M', 'N',
+    'O', 'P', 'Q', 'R', 'S', 'T', 'U', 'V',
+    'W', 'X', 'Y', 'Z', 'a', 'b', 'c', 'd',
+    'e', 'f', 'g', 'h', 'i', 'j', 'k', 'l',
+    'm', 'n', 'o', 'p', 'q', 'r', 's', 't',
+    'u', 'v', 'w', 'x', 'y', 'z', '+', '-'
+};
+
+/* This defines which unicode chars are directly convertable to ISO-8859-1 */
+#define UNICODE_CONVERTABLE(cl,ch)	(ch == 0 && (cl < 0x80 || cl >= 0xa0))
+
+/* for maxlen param */
+#define UNTIL_0		INT_MAX
+
+/* Convert name part in 'lfn' from unicode to ASCII */
+#define CNV_THIS_PART(lfn)				\
+    ({							\
+	char __part_uni[CHARS_PER_LFN*2];		\
+	copy_lfn_part( __part_uni, lfn );		\
+	cnv_unicode( __part_uni, CHARS_PER_LFN, 0 );	\
+    })
+
+/* Convert name parts collected so far (from previous slots) from unicode to
+ * ASCII */
+#define CNV_PARTS_SO_FAR()					\
+	(cnv_unicode( lfn_unicode+(lfn_slot*CHARS_PER_LFN*2),	\
+		      lfn_parts*CHARS_PER_LFN, 0 ))
+
+/* This function converts an unicode string to a normal ASCII string, assuming
+ * ISO-8859-1 charset. Characters not in 8859-1 are converted to the same
+ * escape notation as used by the kernel, i.e. the uuencode-like ":xxx" */
+static char *cnv_unicode( const unsigned char *uni, int maxlen, int use_q )
+{
+    const unsigned char *up;
+    unsigned char *out, *cp;
+    int len, val;
+
+    for( len = 0, up = uni; (up-uni)/2 < maxlen && (up[0] || up[1]); up += 2 ){
+	if (UNICODE_CONVERTABLE(up[0],up[1]))
+	    ++len;
+	else
+	    len += 4;
+    }
+    cp = out = use_q ? qalloc( &mem_queue, len+1 ) : alloc( len+1 );
+
+    for( up = uni; (up-uni)/2 < maxlen && (up[0] || up[1]); up += 2 ) {
+	if (UNICODE_CONVERTABLE(up[0],up[1]))
+	    *cp++ = up[0];
+	else {
+	    /* here the same escape notation is used as in the Linux kernel */
+	    *cp++ = ':';
+	    val = (up[1] << 8) + up[0];
+	    cp[2] = fat_uni2esc[val & 0x3f];
+	    val >>= 6;
+	    cp[1] = fat_uni2esc[val & 0x3f];
+	    val >>= 6;
+	    cp[0] = fat_uni2esc[val & 0x3f];
+	    cp += 3;
+	}
+    }
+    *cp = 0;
+
+    return( out );
+}
+
+
+static void copy_lfn_part( char *dst, LFN_ENT *lfn )
+{
+    memcpy( dst,    lfn->name0_4,   10 );
+    memcpy( dst+10, lfn->name5_10,  12 );
+    memcpy( dst+22, lfn->name11_12, 4 );
+}
+
+
+static void clear_lfn_slots( int start, int end )
+{
+    int i;
+    LFN_ENT empty;
+
+    /* New dir entry is zeroed except first byte, which is set to 0xe5.
+     * This is to avoid that some FAT-reading OSes (not Linux! ;) stop reading
+     * a directory at the first zero entry...
+     */
+    memset( &empty, 0, sizeof(empty) );
+    empty.id = DELETED_FLAG;
+
+    for( i = start; i <= end; ++i ) {
+	fs_write( lfn_offsets[i], sizeof(LFN_ENT), &empty );
+    }
+}
+
+void lfn_reset( void )
+{
+    if (lfn_unicode)
+	free( lfn_unicode );
+    lfn_unicode = NULL;
+    if (lfn_offsets)
+	free( lfn_offsets );
+    lfn_offsets = NULL;
+    lfn_slot = -1;
+}
+
+
+/* This function is only called with de->attr == VFAT_LN_ATTR. It stores part
+ * of the long name. */
+void lfn_add_slot( DIR_ENT *de, loff_t dir_offset )
+{
+    LFN_ENT *lfn = (LFN_ENT *)de;
+    int slot = lfn->id & LFN_ID_SLOTMASK;
+    unsigned offset;
+
+    if (lfn_slot == 0) lfn_check_orphaned();
+
+    if (de->attr != VFAT_LN_ATTR)
+	die("lfn_add_slot called with non-LFN directory entry");
+
+    if (lfn->id & LFN_ID_START && slot != 0) {
+	if (lfn_slot != -1) {
+	    int can_clear = 0;
+	    /* There is already a LFN "in progess", so it is an error that a
+	     * new start entry is here. */
+	    /* Causes: 1) if slot# == expected: start bit set mysteriously, 2)
+	     *         old LFN overwritten by new one */
+	    /* Fixes: 1) delete previous LFN 2) if slot# == expected and
+	     *        checksum ok: clear start bit */
+	    /* XXX: Should delay that until next LFN known (then can better
+	     * display the name) */
+	    printf( "A new long file name starts within an old one.\n" );
+	    if (slot == lfn_slot &&
+		lfn->alias_checksum == lfn_checksum) {
+		char *part1 = CNV_THIS_PART(lfn);
+		char *part2 = CNV_PARTS_SO_FAR();
+		printf( "  It could be that the LFN start bit is wrong here\n"
+			"  if \"%s\" seems to match \"%s\".\n", part1, part2 );
+		free( part1 );
+		free( part2 );
+		can_clear = 1;
+	    }
+	    if (interactive) {
+		printf( "1: Delete previous LFN\n2: Leave it as it is.\n" );
+		if (can_clear)
+		    printf( "3: Clear start bit and concatenate LFNs\n" );
+	    }
+	    else printf( "  Not auto-correcting this.\n" );
+	    if (interactive) {
+		switch( get_key( can_clear ? "123" : "12", "?" )) {
+		  case '1':
+		    clear_lfn_slots( 0, lfn_parts-1 );
+		    lfn_reset();
+		    break;
+		  case '2':
+		    break;
+		  case '3':
+		    lfn->id &= ~LFN_ID_START;
+		    fs_write( dir_offset+offsetof(LFN_ENT,id),
+			      sizeof(lfn->id), &lfn->id );
+		    break;
+		}
+	    }
+	}
+	lfn_slot = slot;
+	lfn_checksum = lfn->alias_checksum;
+	lfn_unicode = alloc( (lfn_slot*CHARS_PER_LFN+1)*2 );
+	lfn_offsets = alloc( lfn_slot*sizeof(loff_t) );
+	lfn_parts = 0;
+    }
+    else if (lfn_slot == -1 && slot != 0) {
+	/* No LFN in progress, but slot found; start bit missing */
+	/* Causes: 1) start bit got lost, 2) Previous slot with start bit got
+	 *         lost */
+	/* Fixes: 1) delete LFN, 2) set start bit */
+	char *part = CNV_THIS_PART(lfn);
+	printf( "Long filename fragment \"%s\" found outside a LFN "
+		"sequence.\n  (Maybe the start bit is missing on the "
+		"last fragment)\n", part );
+	if (interactive) {
+	    printf( "1: Delete fragment\n2: Leave it as it is.\n"
+		    "3: Set start bit\n" );
+	}
+	else printf( "  Not auto-correcting this.\n" );
+	switch( interactive ? get_key( "123", "?" ) : '2') {
+	  case '1':
+	    if (!lfn_offsets)
+	        lfn_offsets = alloc( sizeof(loff_t) );
+	    lfn_offsets[0] = dir_offset;
+	    clear_lfn_slots( 0, 0 );
+	    lfn_reset();
+	    return;
+	  case '2':
+	    lfn_reset();
+	    return;
+	  case '3':
+	    lfn->id |= LFN_ID_START;
+	    fs_write( dir_offset+offsetof(LFN_ENT,id),
+		      sizeof(lfn->id), &lfn->id );
+	    lfn_slot = slot;
+	    lfn_checksum = lfn->alias_checksum;
+	    lfn_unicode = alloc( (lfn_slot*CHARS_PER_LFN+1)*2 );
+	    lfn_offsets = alloc( lfn_slot*sizeof(loff_t) );
+	    lfn_parts = 0;
+	    break;
+	}
+    }
+    else if (slot != lfn_slot) {
+	/* wrong sequence number */
+	/* Causes: 1) seq-no destroyed */
+	/* Fixes: 1) delete LFN, 2) fix number (maybe only if following parts
+	 *        are ok?, maybe only if checksum is ok?) (Attention: space
+	 *        for name was allocated before!) */
+	int can_fix = 0;
+	printf( "Unexpected long filename sequence number "
+		"(%d vs. expected %d).\n",
+		slot, lfn_slot );
+	if (lfn->alias_checksum == lfn_checksum && lfn_slot > 0) {
+	    char *part1 = CNV_THIS_PART(lfn);
+	    char *part2 = CNV_PARTS_SO_FAR();
+	    printf( "  It could be that just the number is wrong\n"
+		    "  if \"%s\" seems to match \"%s\".\n", part1, part2 );
+	    free( part1 );
+	    free( part2 );
+	    can_fix = 1;
+	}
+	if (interactive) {
+	    printf( "1: Delete LFN\n2: Leave it as it is (and ignore LFN so far)\n" );
+	    if (can_fix)
+		printf( "3: Correct sequence number\n" );
+	}
+	else printf( "  Not auto-correcting this.\n" );
+	switch( interactive ? get_key( can_fix ? "123" : "12", "?" ) : '2') {
+	  case '1':
+	    if (!lfn_offsets) {
+	        lfn_offsets = alloc( sizeof(loff_t) );
+		lfn_parts = 0;
+	    }
+	    lfn_offsets[lfn_parts++] = dir_offset;
+	    clear_lfn_slots( 0, lfn_parts-1 );
+	    lfn_reset();
+	    return;
+	  case '2':
+	    lfn_reset();
+	    return;
+	  case '3':
+	    lfn->id = (lfn->id & ~LFN_ID_SLOTMASK) | lfn_slot;
+	    fs_write( dir_offset+offsetof(LFN_ENT,id),
+		      sizeof(lfn->id), &lfn->id );
+	    break;
+	}
+    }
+
+    if (lfn->alias_checksum != lfn_checksum) {
+	/* checksum mismatch */
+	/* Causes: 1) checksum field here destroyed */
+	/* Fixes: 1) delete LFN, 2) fix checksum */
+	printf( "Checksum in long filename part wrong "
+		"(%02x vs. expected %02x).\n",
+		lfn->alias_checksum, lfn_checksum );
+	if (interactive) {
+	    printf( "1: Delete LFN\n2: Leave it as it is.\n"
+		    "3: Correct checksum\n" );
+	}
+	else printf( "  Not auto-correcting this.\n" );
+	if (interactive) {
+	    switch( get_key( "123", "?" )) {
+	      case '1':
+		lfn_offsets[lfn_parts++] = dir_offset;
+		clear_lfn_slots( 0, lfn_parts-1 );
+		lfn_reset();
+		return;
+	      case '2':
+		break;
+	      case '3':
+		lfn->alias_checksum = lfn_checksum;
+		fs_write( dir_offset+offsetof(LFN_ENT,alias_checksum),
+			  sizeof(lfn->alias_checksum), &lfn->alias_checksum );
+		break;
+	    }
+	}
+    }
+
+    if (lfn_slot != -1) {
+	lfn_slot--;
+	offset = lfn_slot * CHARS_PER_LFN*2;
+	copy_lfn_part( lfn_unicode+offset, lfn );
+	if (lfn->id & LFN_ID_START)
+	    lfn_unicode[offset+26] = lfn_unicode[offset+27] = 0;
+	lfn_offsets[lfn_parts++] = dir_offset;
+    }
+
+    if (lfn->reserved != 0) {
+	printf( "Reserved field in VFAT long filename slot is not 0 "
+		"(but 0x%02x).\n", lfn->reserved );
+	if (interactive)
+	    printf( "1: Fix.\n2: Leave it.\n" );
+	else printf( "Auto-setting to 0.\n" );
+	if (!interactive || get_key("12","?") == '1') {
+	    lfn->reserved = 0;
+	    fs_write( dir_offset+offsetof(LFN_ENT,reserved),
+		      sizeof(lfn->reserved), &lfn->reserved );
+	}
+    }
+    if (lfn->start != CT_LE_W(0)) {
+	printf( "Start cluster field in VFAT long filename slot is not 0 "
+		"(but 0x%04x).\n", lfn->start );
+	if (interactive)
+	    printf( "1: Fix.\n2: Leave it.\n" );
+	else printf( "Auto-setting to 0.\n" );
+	if (!interactive || get_key("12","?") == '1') {
+	    lfn->start = CT_LE_W(0);
+	    fs_write( dir_offset+offsetof(LFN_ENT,start),
+		      sizeof(lfn->start),&lfn->start );
+	}
+    }
+}
+
+
+/* This function is always called when de->attr != VFAT_LN_ATTR is found, to
+ * retrieve the previously constructed LFN. */
+char *lfn_get( DIR_ENT *de )
+{
+    char *lfn;
+    __u8 sum;
+    int i;
+
+    if (de->attr == VFAT_LN_ATTR)
+	die("lfn_get called with LFN directory entry");
+
+#if 0
+    if (de->lcase)
+	printf( "lcase=%02x\n",de->lcase );
+#endif
+
+    if (lfn_slot == -1)
+	/* no long name for this file */
+	return NULL;
+
+    if (lfn_slot != 0) {
+	/* The long name isn't finished yet. */
+	/* Causes: 1) LFN slot overwritten by non-VFAT aware tool */
+	/* Fixes: 1) delete LFN 2) move overwriting entry to somewhere else
+	 * and let user enter missing part of LFN (hard to do :-()
+	 * 3) renumber entries and truncate name */
+	char *long_name = CNV_PARTS_SO_FAR();
+	char *short_name = file_name(de->name);
+	printf( "Unfinished long file name \"%s\".\n"
+		"  (Start may have been overwritten by %s)\n",
+		long_name, short_name );
+	free( long_name );
+	if (interactive) {
+	    printf( "1: Delete LFN\n2: Leave it as it is.\n"
+		    "3: Fix numbering (truncates long name and attaches "
+		    "it to short name %s)\n", short_name );
+	}
+	else printf( "  Not auto-correcting this.\n" );
+	switch( interactive ? get_key( "123", "?" ) : '2') {
+	  case '1':
+	    clear_lfn_slots( 0, lfn_parts-1 );
+	    lfn_reset();
+	    return NULL;
+	  case '2':
+	    lfn_reset();
+	    return NULL;
+	  case '3':
+	    for( i = 0; i < lfn_parts; ++i ) {
+	        __u8 id = (lfn_parts-i) | (i==0 ? LFN_ID_START : 0);
+		fs_write( lfn_offsets[i]+offsetof(LFN_ENT,id),
+			  sizeof(id), &id );
+	    }
+	    memmove( lfn_unicode, lfn_unicode+lfn_slot*CHARS_PER_LFN*2,
+		     lfn_parts*CHARS_PER_LFN*2 );
+	    break;
+	}
+    }
+
+    for (sum = 0, i = 0; i < 11; i++)
+	sum = (((sum&1) << 7) | ((sum&0xfe) >> 1)) + de->name[i];
+    if (sum != lfn_checksum) {
+	/* checksum doesn't match, long name doesn't apply to this alias */
+	/* Causes: 1) alias renamed */
+	/* Fixes: 1) Fix checksum in LFN entries */
+	char *long_name = CNV_PARTS_SO_FAR();
+	char *short_name = file_name(de->name);
+	printf( "Wrong checksum for long file name \"%s\".\n"
+		"  (Short name %s may have changed without updating the long name)\n",
+		long_name, short_name );
+	free( long_name );
+	if (interactive) {
+	    printf( "1: Delete LFN\n2: Leave it as it is.\n"
+		    "3: Fix checksum (attaches to short name %s)\n",
+		    short_name );
+	}
+	else printf( "  Not auto-correcting this.\n" );
+	if (interactive) {
+	    switch( get_key( "123", "?" )) {
+	      case '1':
+		clear_lfn_slots( 0, lfn_parts-1 );
+		lfn_reset();
+		return NULL;
+	      case '2':
+		lfn_reset();
+		return NULL;
+	      case '3':
+		for( i = 0; i < lfn_parts; ++i ) {
+		    fs_write( lfn_offsets[i]+offsetof(LFN_ENT,alias_checksum),
+			      sizeof(sum), &sum );
+		}
+		break;
+	    }
+	}
+    }
+
+    lfn = cnv_unicode( lfn_unicode, UNTIL_0, 1 );
+    lfn_reset();
+    return( lfn );
+}
+
+void lfn_check_orphaned(void)
+{
+    char *long_name;
+
+    if (lfn_slot == -1)
+	return;
+
+    long_name = CNV_PARTS_SO_FAR();
+    printf("Orphaned long file name part \"%s\"\n", long_name);
+    if (interactive)
+	printf( "1: Delete.\n2: Leave it.\n" );
+    else printf( "  Auto-deleting.\n" );
+    if (!interactive || get_key("12","?") == '1') {
+	clear_lfn_slots(0, lfn_parts - 1);
+    }
+    lfn_reset();
+}
+
+/* Local Variables: */
+/* tab-width: 8     */
+/* End:             */
diff --git a/src/lfn.h b/src/lfn.h
new file mode 100644
index 0000000..8e8f5a1
--- /dev/null
+++ b/src/lfn.h
@@ -0,0 +1,36 @@
+/* lfn.h - Functions for handling VFAT long filenames
+
+   Copyright (C) 1998 Roman Hodek <Roman.Hodek@informatik.uni-erlangen.de>
+
+   This program is free software: you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation, either version 3 of the License, or
+   (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program. If not, see <http://www.gnu.org/licenses/>.
+
+   On Debian systems, the complete text of the GNU General Public License
+   can be found in /usr/share/common-licenses/GPL-3 file.
+*/
+
+#ifndef _LFN_H
+#define _LFN_H
+
+void lfn_reset( void );
+/* Reset the state of the LFN parser. */
+
+void lfn_add_slot( DIR_ENT *de, loff_t dir_offset );
+/* Process a dir slot that is a VFAT LFN entry. */
+
+char *lfn_get( DIR_ENT *de );
+/* Retrieve the long name for the proper dir entry. */
+
+void lfn_check_orphaned(void);
+
+#endif
diff --git a/src/mkdosfs.c b/src/mkdosfs.c
new file mode 100644
index 0000000..1264efd
--- /dev/null
+++ b/src/mkdosfs.c
@@ -0,0 +1,1761 @@
+/* mkdosfs.c - utility to create FAT/MS-DOS filesystems
+
+   Copyright (C) 1991 Linus Torvalds <torvalds@klaava.helsinki.fi>
+   Copyright (C) 1992-1993 Remy Card <card@masi.ibp.fr>
+   Copyright (C) 1993-1994 David Hudson <dave@humbug.demon.co.uk>
+   Copyright (C) 1998 H. Peter Anvin <hpa@zytor.com>
+   Copyright (C) 1998-2005 Roman Hodek <Roman.Hodek@informatik.uni-erlangen.de>
+
+   This program is free software: you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation, either version 3 of the License, or
+   (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program. If not, see <http://www.gnu.org/licenses/>.
+
+   On Debian systems, the complete text of the GNU General Public License
+   can be found in /usr/share/common-licenses/GPL-3 file.
+*/
+
+/* Description: Utility to allow an MS-DOS filesystem to be created
+   under Linux.  A lot of the basic structure of this program has been
+   borrowed from Remy Card's "mke2fs" code.
+
+   As far as possible the aim here is to make the "mkdosfs" command
+   look almost identical to the other Linux filesystem make utilties,
+   eg bad blocks are still specified as blocks, not sectors, but when
+   it comes down to it, DOS is tied to the idea of a sector (512 bytes
+   as a rule), and not the block.  For example the boot block does not
+   occupy a full cluster.
+
+   Fixes/additions May 1998 by Roman Hodek
+   <Roman.Hodek@informatik.uni-erlangen.de>:
+   - Atari format support
+   - New options -A, -S, -C
+   - Support for filesystems > 2GB
+   - FAT32 support */
+
+/* Include the header files */
+
+#include "version.h"
+
+#include <fcntl.h>
+#include <linux/hdreg.h>
+#include <sys/mount.h>
+#include <linux/fd.h>
+#include <endian.h>
+#include <mntent.h>
+#include <signal.h>
+#include <string.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <sys/ioctl.h>
+#include <sys/stat.h>
+#include <sys/time.h>
+#include <sys/types.h>
+#include <unistd.h>
+#include <time.h>
+#include <errno.h>
+
+# include <asm/types.h>
+
+#if __BYTE_ORDER == __BIG_ENDIAN
+
+#include <asm/byteorder.h>
+#ifdef __le16_to_cpu
+/* ++roman: 2.1 kernel headers define these function, they're probably more
+ * efficient then coding the swaps machine-independently. */
+#define CF_LE_W	__le16_to_cpu
+#define CF_LE_L	__le32_to_cpu
+#define CT_LE_W	__cpu_to_le16
+#define CT_LE_L	__cpu_to_le32
+#else
+#define CF_LE_W(v) ((((v) & 0xff) << 8) | (((v) >> 8) & 0xff))
+#define CF_LE_L(v) (((unsigned)(v)>>24) | (((unsigned)(v)>>8)&0xff00) | \
+               (((unsigned)(v)<<8)&0xff0000) | ((unsigned)(v)<<24))
+#define CT_LE_W(v) CF_LE_W(v)
+#define CT_LE_L(v) CF_LE_L(v)
+#endif /* defined(__le16_to_cpu) */
+
+#else
+
+#define CF_LE_W(v) (v)
+#define CF_LE_L(v) (v)
+#define CT_LE_W(v) (v)
+#define CT_LE_L(v) (v)
+
+#endif /* __BIG_ENDIAN */
+
+/* In earlier versions, an own llseek() was used, but glibc lseek() is
+ * sufficient (or even better :) for 64 bit offsets in the meantime */
+#define llseek lseek
+
+/* Constant definitions */
+
+#define TRUE 1			/* Boolean constants */
+#define FALSE 0
+
+#define TEST_BUFFER_BLOCKS 16
+#define HARD_SECTOR_SIZE   512
+#define SECTORS_PER_BLOCK ( BLOCK_SIZE / HARD_SECTOR_SIZE )
+
+
+/* Macro definitions */
+
+/* Report a failure message and return a failure error code */
+
+#define die( str ) fatal_error( "%s: " str "\n" )
+
+
+/* Mark a cluster in the FAT as bad */
+
+#define mark_sector_bad( sector ) mark_FAT_sector( sector, FAT_BAD )
+
+/* Compute ceil(a/b) */
+
+inline int
+cdiv (int a, int b)
+{
+  return (a + b - 1) / b;
+}
+
+/* MS-DOS filesystem structures -- I included them here instead of
+   including linux/msdos_fs.h since that doesn't include some fields we
+   need */
+
+#define ATTR_RO      1		/* read-only */
+#define ATTR_HIDDEN  2		/* hidden */
+#define ATTR_SYS     4		/* system */
+#define ATTR_VOLUME  8		/* volume label */
+#define ATTR_DIR     16		/* directory */
+#define ATTR_ARCH    32		/* archived */
+
+#define ATTR_NONE    0		/* no attribute bits */
+#define ATTR_UNUSED  (ATTR_VOLUME | ATTR_ARCH | ATTR_SYS | ATTR_HIDDEN)
+	/* attribute bits that are copied "as is" */
+
+/* FAT values */
+#define FAT_EOF      (atari_format ? 0x0fffffff : 0x0ffffff8)
+#define FAT_BAD      0x0ffffff7
+
+#define MSDOS_EXT_SIGN 0x29	/* extended boot sector signature */
+#define MSDOS_FAT12_SIGN "FAT12   "	/* FAT12 filesystem signature */
+#define MSDOS_FAT16_SIGN "FAT16   "	/* FAT16 filesystem signature */
+#define MSDOS_FAT32_SIGN "FAT32   "	/* FAT32 filesystem signature */
+
+#define BOOT_SIGN 0xAA55	/* Boot sector magic number */
+
+#define MAX_CLUST_12	((1 << 12) - 16)
+#define MAX_CLUST_16	((1 << 16) - 16)
+#define MIN_CLUST_32    65529
+/* M$ says the high 4 bits of a FAT32 FAT entry are reserved and don't belong
+ * to the cluster number. So the max. cluster# is based on 2^28 */
+#define MAX_CLUST_32	((1 << 28) - 16)
+
+#define FAT12_THRESHOLD	4085
+
+#define OLDGEMDOS_MAX_SECTORS	32765
+#define GEMDOS_MAX_SECTORS	65531
+#define GEMDOS_MAX_SECTOR_SIZE	(16*1024)
+
+#define BOOTCODE_SIZE		448
+#define BOOTCODE_FAT32_SIZE	420
+
+/* __attribute__ ((packed)) is used on all structures to make gcc ignore any
+ * alignments */
+
+struct msdos_volume_info {
+  __u8		drive_number;	/* BIOS drive number */
+  __u8		RESERVED;	/* Unused */
+  __u8		ext_boot_sign;	/* 0x29 if fields below exist (DOS 3.3+) */
+  __u8		volume_id[4];	/* Volume ID number */
+  __u8		volume_label[11];/* Volume label */
+  __u8		fs_type[8];	/* Typically FAT12 or FAT16 */
+} __attribute__ ((packed));
+
+struct msdos_boot_sector
+{
+  __u8	        boot_jump[3];	/* Boot strap short or near jump */
+  __u8          system_id[8];	/* Name - can be used to special case
+				   partition manager volumes */
+  __u8          sector_size[2];	/* bytes per logical sector */
+  __u8          cluster_size;	/* sectors/cluster */
+  __u16         reserved;	/* reserved sectors */
+  __u8          fats;		/* number of FATs */
+  __u8          dir_entries[2];	/* root directory entries */
+  __u8          sectors[2];	/* number of sectors */
+  __u8          media;		/* media code (unused) */
+  __u16         fat_length;	/* sectors/FAT */
+  __u16         secs_track;	/* sectors per track */
+  __u16         heads;		/* number of heads */
+  __u32         hidden;		/* hidden sectors (unused) */
+  __u32         total_sect;	/* number of sectors (if sectors == 0) */
+  union {
+    struct {
+      struct msdos_volume_info vi;
+      __u8	boot_code[BOOTCODE_SIZE];
+    } __attribute__ ((packed)) _oldfat;
+    struct {
+      __u32	fat32_length;	/* sectors/FAT */
+      __u16	flags;		/* bit 8: fat mirroring, low 4: active fat */
+      __u8	version[2];	/* major, minor filesystem version */
+      __u32	root_cluster;	/* first cluster in root directory */
+      __u16	info_sector;	/* filesystem info sector */
+      __u16	backup_boot;	/* backup boot sector */
+      __u16	reserved2[6];	/* Unused */
+      struct msdos_volume_info vi;
+      __u8	boot_code[BOOTCODE_FAT32_SIZE];
+    } __attribute__ ((packed)) _fat32;
+  } __attribute__ ((packed)) fstype;
+  __u16		boot_sign;
+} __attribute__ ((packed));
+#define fat32	fstype._fat32
+#define oldfat	fstype._oldfat
+
+struct fat32_fsinfo {
+  __u32		reserved1;	/* Nothing as far as I can tell */
+  __u32		signature;	/* 0x61417272L */
+  __u32		free_clusters;	/* Free cluster count.  -1 if unknown */
+  __u32		next_cluster;	/* Most recently allocated cluster.
+				 * Unused under Linux. */
+  __u32		reserved2[4];
+};
+
+struct msdos_dir_entry
+  {
+    char	name[8], ext[3];	/* name and extension */
+    __u8        attr;			/* attribute bits */
+    __u8	lcase;			/* Case for base and extension */
+    __u8	ctime_ms;		/* Creation time, milliseconds */
+    __u16	ctime;			/* Creation time */
+    __u16	cdate;			/* Creation date */
+    __u16	adate;			/* Last access date */
+    __u16	starthi;		/* high 16 bits of first cl. (FAT32) */
+    __u16	time, date, start;	/* time, date and first cluster */
+    __u32	size;			/* file size (in bytes) */
+  } __attribute__ ((packed));
+
+/* The "boot code" we put into the filesystem... it writes a message and
+   tells the user to try again */
+
+char dummy_boot_jump[3] = { 0xeb, 0x3c, 0x90 };
+
+char dummy_boot_jump_m68k[2] = { 0x60, 0x1c };
+
+#define MSG_OFFSET_OFFSET 3
+char dummy_boot_code[BOOTCODE_SIZE] =
+  "\x0e"			/* push cs */
+  "\x1f"			/* pop ds */
+  "\xbe\x5b\x7c"		/* mov si, offset message_txt */
+				/* write_msg: */
+  "\xac"			/* lodsb */
+  "\x22\xc0"			/* and al, al */
+  "\x74\x0b"			/* jz key_press */
+  "\x56"			/* push si */
+  "\xb4\x0e"			/* mov ah, 0eh */
+  "\xbb\x07\x00"		/* mov bx, 0007h */
+  "\xcd\x10"			/* int 10h */
+  "\x5e"			/* pop si */
+  "\xeb\xf0"			/* jmp write_msg */
+				/* key_press: */
+  "\x32\xe4"			/* xor ah, ah */
+  "\xcd\x16"			/* int 16h */
+  "\xcd\x19"			/* int 19h */
+  "\xeb\xfe"			/* foo: jmp foo */
+				/* message_txt: */
+
+  "This is not a bootable disk.  Please insert a bootable floppy and\r\n"
+  "press any key to try again ... \r\n";
+
+#define MESSAGE_OFFSET 29	/* Offset of message in above code */
+
+/* Global variables - the root of all evil :-) - see these and weep! */
+
+static char *program_name = "mkdosfs";	/* Name of the program */
+static char *device_name = NULL;	/* Name of the device on which to create the filesystem */
+static int atari_format = 0;	/* Use Atari variation of MS-DOS FS format */
+static int check = FALSE;	/* Default to no readablity checking */
+static int verbose = 0;		/* Default to verbose mode off */
+static long volume_id;		/* Volume ID number */
+static time_t create_time;	/* Creation time */
+static struct timeval create_timeval;	/* Creation time */
+static char volume_name[] = "           "; /* Volume name */
+static unsigned long long blocks;	/* Number of blocks in filesystem */
+static int sector_size = 512;	/* Size of a logical sector */
+static int sector_size_set = 0; /* User selected sector size */
+static int backup_boot = 0;	/* Sector# of backup boot sector */
+static int reserved_sectors = 0;/* Number of reserved sectors */
+static int badblocks = 0;	/* Number of bad blocks in the filesystem */
+static int nr_fats = 2;		/* Default number of FATs to produce */
+static int size_fat = 0;	/* Size in bits of FAT entries */
+static int size_fat_by_user = 0; /* 1 if FAT size user selected */
+static int dev = -1;		/* FS block device file handle */
+static int  ignore_full_disk = 0; /* Ignore warning about 'full' disk devices */
+static off_t currently_testing = 0;	/* Block currently being tested (if autodetect bad blocks) */
+static struct msdos_boot_sector bs;	/* Boot sector data */
+static int start_data_sector;	/* Sector number for the start of the data area */
+static int start_data_block;	/* Block number for the start of the data area */
+static unsigned char *fat;	/* File allocation table */
+static unsigned char *info_sector;	/* FAT32 info sector */
+static struct msdos_dir_entry *root_dir;	/* Root directory */
+static int size_root_dir;	/* Size of the root directory in bytes */
+static int sectors_per_cluster = 0;	/* Number of sectors per disk cluster */
+static int root_dir_entries = 0;	/* Number of root directory entries */
+static char *blank_sector;		/* Blank sector - all zeros */
+static int hidden_sectors = 0;		/* Number of hidden sectors */
+
+
+/* Function prototype definitions */
+
+static void fatal_error (const char *fmt_string) __attribute__((noreturn));
+static void mark_FAT_cluster (int cluster, unsigned int value);
+static void mark_FAT_sector (int sector, unsigned int value);
+static long do_check (char *buffer, int try, off_t current_block);
+static void alarm_intr (int alnum);
+static void check_blocks (void);
+static void get_list_blocks (char *filename);
+static int valid_offset (int fd, loff_t offset);
+static unsigned long long count_blocks (char *filename);
+static void check_mount (char *device_name);
+static void establish_params (int device_num, int size);
+static void setup_tables (void);
+static void write_tables (void);
+
+
+/* The function implementations */
+
+/* Handle the reporting of fatal errors.  Volatile to let gcc know that this doesn't return */
+
+static void
+fatal_error (const char *fmt_string)
+{
+  fprintf (stderr, fmt_string, program_name, device_name);
+  exit (1);			/* The error exit code is 1! */
+}
+
+
+/* Mark the specified cluster as having a particular value */
+
+static void
+mark_FAT_cluster (int cluster, unsigned int value)
+{
+  switch( size_fat ) {
+    case 12:
+      value &= 0x0fff;
+      if (((cluster * 3) & 0x1) == 0)
+	{
+	  fat[3 * cluster / 2] = (unsigned char) (value & 0x00ff);
+	  fat[(3 * cluster / 2) + 1] = (unsigned char) ((fat[(3 * cluster / 2) + 1] & 0x00f0)
+						 | ((value & 0x0f00) >> 8));
+	}
+      else
+	{
+	  fat[3 * cluster / 2] = (unsigned char) ((fat[3 * cluster / 2] & 0x000f) | ((value & 0x000f) << 4));
+	  fat[(3 * cluster / 2) + 1] = (unsigned char) ((value & 0x0ff0) >> 4);
+	}
+      break;
+
+    case 16:
+      value &= 0xffff;
+      fat[2 * cluster] = (unsigned char) (value & 0x00ff);
+      fat[(2 * cluster) + 1] = (unsigned char) (value >> 8);
+      break;
+
+    case 32:
+      value &= 0xfffffff;
+      fat[4 * cluster] =       (unsigned char)  (value & 0x000000ff);
+      fat[(4 * cluster) + 1] = (unsigned char) ((value & 0x0000ff00) >> 8);
+      fat[(4 * cluster) + 2] = (unsigned char) ((value & 0x00ff0000) >> 16);
+      fat[(4 * cluster) + 3] = (unsigned char) ((value & 0xff000000) >> 24);
+      break;
+
+    default:
+      die("Bad FAT size (not 12, 16, or 32)");
+  }
+}
+
+
+/* Mark a specified sector as having a particular value in it's FAT entry */
+
+static void
+mark_FAT_sector (int sector, unsigned int value)
+{
+  int cluster;
+
+  cluster = (sector - start_data_sector) / (int) (bs.cluster_size) /
+	    (sector_size/HARD_SECTOR_SIZE);
+  if (cluster < 0)
+    die ("Invalid cluster number in mark_FAT_sector: probably bug!");
+
+  mark_FAT_cluster (cluster, value);
+}
+
+
+/* Perform a test on a block.  Return the number of blocks that could be read successfully */
+
+static long
+do_check (char *buffer, int try, off_t current_block)
+{
+  long got;
+
+  if (llseek (dev, current_block * BLOCK_SIZE, SEEK_SET) /* Seek to the correct location */
+      != current_block * BLOCK_SIZE)
+    die ("seek failed during testing for blocks");
+
+  got = read (dev, buffer, try * BLOCK_SIZE);	/* Try reading! */
+  if (got < 0)
+    got = 0;
+
+  if (got & (BLOCK_SIZE - 1))
+    printf ("Unexpected values in do_check: probably bugs\n");
+  got /= BLOCK_SIZE;
+
+  return got;
+}
+
+
+/* Alarm clock handler - display the status of the quest for bad blocks!  Then retrigger the alarm for five senconds
+   later (so we can come here again) */
+
+static void
+alarm_intr (int alnum)
+{
+  if (currently_testing >= blocks)
+    return;
+
+  signal (SIGALRM, alarm_intr);
+  alarm (5);
+  if (!currently_testing)
+    return;
+
+  printf ("%lld... ", (unsigned long long)currently_testing);
+  fflush (stdout);
+}
+
+
+static void
+check_blocks (void)
+{
+  int try, got;
+  int i;
+  static char blkbuf[BLOCK_SIZE * TEST_BUFFER_BLOCKS];
+
+  if (verbose)
+    {
+      printf ("Searching for bad blocks ");
+      fflush (stdout);
+    }
+  currently_testing = 0;
+  if (verbose)
+    {
+      signal (SIGALRM, alarm_intr);
+      alarm (5);
+    }
+  try = TEST_BUFFER_BLOCKS;
+  while (currently_testing < blocks)
+    {
+      if (currently_testing + try > blocks)
+	try = blocks - currently_testing;
+      got = do_check (blkbuf, try, currently_testing);
+      currently_testing += got;
+      if (got == try)
+	{
+	  try = TEST_BUFFER_BLOCKS;
+	  continue;
+	}
+      else
+	try = 1;
+      if (currently_testing < start_data_block)
+	die ("bad blocks before data-area: cannot make fs");
+
+      for (i = 0; i < SECTORS_PER_BLOCK; i++)	/* Mark all of the sectors in the block as bad */
+	mark_sector_bad (currently_testing * SECTORS_PER_BLOCK + i);
+      badblocks++;
+      currently_testing++;
+    }
+
+  if (verbose)
+    printf ("\n");
+
+  if (badblocks)
+    printf ("%d bad block%s\n", badblocks,
+	    (badblocks > 1) ? "s" : "");
+}
+
+
+static void
+get_list_blocks (char *filename)
+{
+  int i;
+  FILE *listfile;
+  unsigned long blockno;
+
+  listfile = fopen (filename, "r");
+  if (listfile == (FILE *) NULL)
+    die ("Can't open file of bad blocks");
+
+  while (!feof (listfile))
+    {
+      fscanf (listfile, "%ld\n", &blockno);
+      for (i = 0; i < SECTORS_PER_BLOCK; i++)	/* Mark all of the sectors in the block as bad */
+	mark_sector_bad (blockno * SECTORS_PER_BLOCK + i);
+      badblocks++;
+    }
+  fclose (listfile);
+
+  if (badblocks)
+    printf ("%d bad block%s\n", badblocks,
+	    (badblocks > 1) ? "s" : "");
+}
+
+
+/* Given a file descriptor and an offset, check whether the offset is a valid offset for the file - return FALSE if it
+   isn't valid or TRUE if it is */
+
+static int
+valid_offset (int fd, loff_t offset)
+{
+  char ch;
+
+  if (llseek (fd, offset, SEEK_SET) < 0)
+    return FALSE;
+  if (read (fd, &ch, 1) < 1)
+    return FALSE;
+  return TRUE;
+}
+
+
+/* Given a filename, look to see how many blocks of BLOCK_SIZE are present, returning the answer */
+
+static unsigned long long
+count_blocks (char *filename)
+{
+  off_t high, low;
+  int fd;
+
+  if ((fd = open (filename, O_RDONLY)) < 0)
+    {
+      perror (filename);
+      exit (1);
+    }
+
+  /* first try SEEK_END, which should work on most devices nowadays */
+  if ((low = llseek(fd, 0, SEEK_END)) <= 0) {
+      low = 0;
+      for (high = 1; valid_offset (fd, high); high *= 2)
+	  low = high;
+      while (low < high - 1) {
+	  const loff_t mid = (low + high) / 2;
+	  if (valid_offset (fd, mid))
+	      low = mid;
+	  else
+	      high = mid;
+      }
+      ++low;
+  }
+
+  close (fd);
+  return low / BLOCK_SIZE;
+}
+
+
+/* Check to see if the specified device is currently mounted - abort if it is */
+
+static void
+check_mount (char *device_name)
+{
+  FILE *f;
+  struct mntent *mnt;
+
+  if ((f = setmntent (MOUNTED, "r")) == NULL)
+    return;
+  while ((mnt = getmntent (f)) != NULL)
+    if (strcmp (device_name, mnt->mnt_fsname) == 0)
+      die ("%s contains a mounted file system.");
+  endmntent (f);
+}
+
+
+/* Establish the geometry and media parameters for the device */
+
+static void
+establish_params (int device_num,int size)
+{
+  long loop_size;
+  struct hd_geometry geometry;
+  struct floppy_struct param;
+
+  if ((0 == device_num) || ((device_num & 0xff00) == 0x0200))
+    /* file image or floppy disk */
+    {
+      if (0 == device_num)
+	{
+	  param.size = size/512;
+	  switch(param.size)
+	    {
+	    case 720:
+	      param.sect = 9 ;
+	      param.head = 2;
+	      break;
+	    case 1440:
+	      param.sect = 9;
+	      param.head = 2;
+	      break;
+	    case 2400:
+	      param.sect = 15;
+	      param.head = 2;
+	      break;
+	    case 2880:
+	      param.sect = 18;
+	      param.head = 2;
+	      break;
+	    case 5760:
+	      param.sect = 36;
+	      param.head = 2;
+	      break;
+	    default:
+	      /* fake values */
+	      param.sect = 32;
+	      param.head = 64;
+	      break;
+	    }
+
+	}
+      else 	/* is a floppy diskette */
+	{
+	  if (ioctl (dev, FDGETPRM, &param))	/*  Can we get the diskette geometry? */
+	    die ("unable to get diskette geometry for '%s'");
+	}
+      bs.secs_track = CT_LE_W(param.sect);	/*  Set up the geometry information */
+      bs.heads = CT_LE_W(param.head);
+      switch (param.size)	/*  Set up the media descriptor byte */
+	{
+	case 720:		/* 5.25", 2, 9, 40 - 360K */
+	  bs.media = (char) 0xfd;
+	  bs.cluster_size = (char) 2;
+	  bs.dir_entries[0] = (char) 112;
+	  bs.dir_entries[1] = (char) 0;
+	  break;
+
+	case 1440:		/* 3.5", 2, 9, 80 - 720K */
+	  bs.media = (char) 0xf9;
+	  bs.cluster_size = (char) 2;
+	  bs.dir_entries[0] = (char) 112;
+	  bs.dir_entries[1] = (char) 0;
+	  break;
+
+	case 2400:		/* 5.25", 2, 15, 80 - 1200K */
+	  bs.media = (char) 0xf9;
+	  bs.cluster_size = (char)(atari_format ? 2 : 1);
+	  bs.dir_entries[0] = (char) 224;
+	  bs.dir_entries[1] = (char) 0;
+	  break;
+
+	case 5760:		/* 3.5", 2, 36, 80 - 2880K */
+	  bs.media = (char) 0xf0;
+	  bs.cluster_size = (char) 2;
+	  bs.dir_entries[0] = (char) 224;
+	  bs.dir_entries[1] = (char) 0;
+	  break;
+
+	case 2880:		/* 3.5", 2, 18, 80 - 1440K */
+	floppy_default:
+	  bs.media = (char) 0xf0;
+	  bs.cluster_size = (char)(atari_format ? 2 : 1);
+	  bs.dir_entries[0] = (char) 224;
+	  bs.dir_entries[1] = (char) 0;
+	  break;
+
+	default:		/* Anything else */
+	  if (0 == device_num)
+	      goto def_hd_params;
+	  else
+	      goto floppy_default;
+	}
+    }
+  else if ((device_num & 0xff00) == 0x0700) /* This is a loop device */
+    {
+      if (ioctl (dev, BLKGETSIZE, &loop_size))
+	die ("unable to get loop device size");
+
+      switch (loop_size)  /* Assuming the loop device -> floppy later */
+	{
+	case 720:		/* 5.25", 2, 9, 40 - 360K */
+	  bs.secs_track = CF_LE_W(9);
+	  bs.heads = CF_LE_W(2);
+	  bs.media = (char) 0xfd;
+	  bs.cluster_size = (char) 2;
+	  bs.dir_entries[0] = (char) 112;
+	  bs.dir_entries[1] = (char) 0;
+	  break;
+
+	case 1440:		/* 3.5", 2, 9, 80 - 720K */
+	  bs.secs_track = CF_LE_W(9);
+	  bs.heads = CF_LE_W(2);
+	  bs.media = (char) 0xf9;
+	  bs.cluster_size = (char) 2;
+	  bs.dir_entries[0] = (char) 112;
+	  bs.dir_entries[1] = (char) 0;
+	  break;
+
+	case 2400:		/* 5.25", 2, 15, 80 - 1200K */
+	  bs.secs_track = CF_LE_W(15);
+	  bs.heads = CF_LE_W(2);
+	  bs.media = (char) 0xf9;
+	  bs.cluster_size = (char)(atari_format ? 2 : 1);
+	  bs.dir_entries[0] = (char) 224;
+	  bs.dir_entries[1] = (char) 0;
+	  break;
+
+	case 5760:		/* 3.5", 2, 36, 80 - 2880K */
+	  bs.secs_track = CF_LE_W(36);
+	  bs.heads = CF_LE_W(2);
+	  bs.media = (char) 0xf0;
+	  bs.cluster_size = (char) 2;
+	  bs.dir_entries[0] = (char) 224;
+	  bs.dir_entries[1] = (char) 0;
+	  break;
+
+	case 2880:		/* 3.5", 2, 18, 80 - 1440K */
+	  bs.secs_track = CF_LE_W(18);
+	  bs.heads = CF_LE_W(2);
+	  bs.media = (char) 0xf0;
+	  bs.cluster_size = (char)(atari_format ? 2 : 1);
+	  bs.dir_entries[0] = (char) 224;
+	  bs.dir_entries[1] = (char) 0;
+	  break;
+
+	default:		/* Anything else: default hd setup */
+	  printf("Loop device does not match a floppy size, using "
+		 "default hd params\n");
+	  bs.secs_track = CT_LE_W(32); /* these are fake values... */
+	  bs.heads = CT_LE_W(64);
+	  goto def_hd_params;
+	}
+    }
+  else
+    /* Must be a hard disk then! */
+    {
+      /* Can we get the drive geometry? (Note I'm not too sure about */
+      /* whether to use HDIO_GETGEO or HDIO_REQ) */
+      if (ioctl (dev, HDIO_GETGEO, &geometry) || geometry.sectors == 0 || geometry.heads == 0) {
+	printf ("unable to get drive geometry, using default 255/63\n");
+        bs.secs_track = CT_LE_W(63);
+        bs.heads = CT_LE_W(255);
+      }
+      else {
+        bs.secs_track = CT_LE_W(geometry.sectors);	/* Set up the geometry information */
+        bs.heads = CT_LE_W(geometry.heads);
+      }
+    def_hd_params:
+      bs.media = (char) 0xf8; /* Set up the media descriptor for a hard drive */
+      bs.dir_entries[0] = (char) 0;	/* Default to 512 entries */
+      bs.dir_entries[1] = (char) 2;
+      if (!size_fat && blocks*SECTORS_PER_BLOCK > 1064960) {
+	  if (verbose) printf("Auto-selecting FAT32 for large filesystem\n");
+	  size_fat = 32;
+      }
+      if (size_fat == 32) {
+	  /* For FAT32, try to do the same as M$'s format command
+	   * (see http://www.win.tue.nl/~aeb/linux/fs/fat/fatgen103.pdf p. 20):
+	   * fs size <= 260M: 0.5k clusters
+	   * fs size <=   8G: 4k clusters
+	   * fs size <=  16G: 8k clusters
+	   * fs size >   16G: 16k clusters
+	   */
+	  unsigned long sz_mb =
+	      (blocks+(1<<(20-BLOCK_SIZE_BITS))-1) >> (20-BLOCK_SIZE_BITS);
+	  bs.cluster_size = sz_mb > 16*1024 ? 32 :
+			    sz_mb >  8*1024 ? 16 :
+			    sz_mb >     260 ?  8 :
+					       1;
+      }
+      else {
+	  /* FAT12 and FAT16: start at 4 sectors per cluster */
+	  bs.cluster_size = (char) 4;
+      }
+    }
+}
+
+
+/* Create the filesystem data tables */
+
+static void
+setup_tables (void)
+{
+  unsigned num_sectors;
+  unsigned cluster_count = 0, fat_length;
+  unsigned fatdata;			/* Sectors for FATs + data area */
+  struct tm *ctime;
+  struct msdos_volume_info *vi = (size_fat == 32 ? &bs.fat32.vi : &bs.oldfat.vi);
+
+  if (atari_format)
+      /* On Atari, the first few bytes of the boot sector are assigned
+       * differently: The jump code is only 2 bytes (and m68k machine code
+       * :-), then 6 bytes filler (ignored), then 3 byte serial number. */
+    memcpy( bs.system_id-1, "mkdosf", 6 );
+  else
+    strcpy (bs.system_id, "mkdosfs");
+  if (sectors_per_cluster)
+    bs.cluster_size = (char) sectors_per_cluster;
+  if (size_fat == 32)
+    {
+      /* Under FAT32, the root dir is in a cluster chain, and this is
+       * signalled by bs.dir_entries being 0. */
+      bs.dir_entries[0] = bs.dir_entries[1] = (char) 0;
+      root_dir_entries = 0;
+    }
+  else if (root_dir_entries)
+    {
+      /* Override default from establish_params() */
+      bs.dir_entries[0] = (char) (root_dir_entries & 0x00ff);
+      bs.dir_entries[1] = (char) ((root_dir_entries & 0xff00) >> 8);
+    }
+  else
+    root_dir_entries = bs.dir_entries[0] + (bs.dir_entries[1] << 8);
+
+  if (atari_format) {
+    bs.system_id[5] = (unsigned char) (volume_id & 0x000000ff);
+    bs.system_id[6] = (unsigned char) ((volume_id & 0x0000ff00) >> 8);
+    bs.system_id[7] = (unsigned char) ((volume_id & 0x00ff0000) >> 16);
+  }
+  else {
+    vi->volume_id[0] = (unsigned char) (volume_id & 0x000000ff);
+    vi->volume_id[1] = (unsigned char) ((volume_id & 0x0000ff00) >> 8);
+    vi->volume_id[2] = (unsigned char) ((volume_id & 0x00ff0000) >> 16);
+    vi->volume_id[3] = (unsigned char) (volume_id >> 24);
+  }
+
+  if (!atari_format) {
+    memcpy(vi->volume_label, volume_name, 11);
+
+    memcpy(bs.boot_jump, dummy_boot_jump, 3);
+    /* Patch in the correct offset to the boot code */
+    bs.boot_jump[1] = ((size_fat == 32 ?
+			(char *)&bs.fat32.boot_code :
+			(char *)&bs.oldfat.boot_code) -
+		       (char *)&bs) - 2;
+
+    if (size_fat == 32) {
+	int offset = (char *)&bs.fat32.boot_code -
+		     (char *)&bs + MESSAGE_OFFSET + 0x7c00;
+	if (dummy_boot_code[BOOTCODE_FAT32_SIZE-1])
+	  printf ("Warning: message too long; truncated\n");
+	dummy_boot_code[BOOTCODE_FAT32_SIZE-1] = 0;
+	memcpy(bs.fat32.boot_code, dummy_boot_code, BOOTCODE_FAT32_SIZE);
+	bs.fat32.boot_code[MSG_OFFSET_OFFSET] = offset & 0xff;
+	bs.fat32.boot_code[MSG_OFFSET_OFFSET+1] = offset >> 8;
+    }
+    else {
+	memcpy(bs.oldfat.boot_code, dummy_boot_code, BOOTCODE_SIZE);
+    }
+    bs.boot_sign = CT_LE_W(BOOT_SIGN);
+  }
+  else {
+    memcpy(bs.boot_jump, dummy_boot_jump_m68k, 2);
+  }
+  if (verbose >= 2)
+    printf( "Boot jump code is %02x %02x\n",
+	    bs.boot_jump[0], bs.boot_jump[1] );
+
+  if (!reserved_sectors)
+      reserved_sectors = (size_fat == 32) ? 32 : 1;
+  else {
+      if (size_fat == 32 && reserved_sectors < 2)
+	  die("On FAT32 at least 2 reserved sectors are needed.");
+  }
+  bs.reserved = CT_LE_W(reserved_sectors);
+  if (verbose >= 2)
+    printf( "Using %d reserved sectors\n", reserved_sectors );
+  bs.fats = (char) nr_fats;
+  if (!atari_format || size_fat == 32)
+    bs.hidden = CT_LE_L(hidden_sectors);
+  else {
+    /* In Atari format, hidden is a 16 bit field */
+    __u16 hidden = CT_LE_W(hidden_sectors);
+    if (hidden_sectors & ~0xffff)
+      die("#hidden doesn't fit in 16bit field of Atari format\n");
+    memcpy( &bs.hidden, &hidden, 2 );
+  }
+
+  num_sectors = (long long)blocks*BLOCK_SIZE/sector_size;
+  if (!atari_format) {
+    unsigned fatlength12, fatlength16, fatlength32;
+    unsigned maxclust12, maxclust16, maxclust32;
+    unsigned clust12, clust16, clust32;
+    int maxclustsize;
+
+    fatdata = num_sectors - cdiv (root_dir_entries * 32, sector_size) -
+	      reserved_sectors;
+
+    if (sectors_per_cluster)
+      bs.cluster_size = maxclustsize = sectors_per_cluster;
+    else
+      /* An initial guess for bs.cluster_size should already be set */
+      maxclustsize = 128;
+
+    if (verbose >= 2)
+      printf( "%d sectors for FAT+data, starting with %d sectors/cluster\n",
+	      fatdata, bs.cluster_size );
+    do {
+      if (verbose >= 2)
+	printf( "Trying with %d sectors/cluster:\n", bs.cluster_size );
+
+      /* The factor 2 below avoids cut-off errors for nr_fats == 1.
+       * The "nr_fats*3" is for the reserved first two FAT entries */
+      clust12 = 2*((long long) fatdata *sector_size + nr_fats*3) /
+	(2*(int) bs.cluster_size * sector_size + nr_fats*3);
+      fatlength12 = cdiv (((clust12+2) * 3 + 1) >> 1, sector_size);
+      /* Need to recalculate number of clusters, since the unused parts of the
+       * FATS and data area together could make up space for an additional,
+       * not really present cluster. */
+      clust12 = (fatdata - nr_fats*fatlength12)/bs.cluster_size;
+      maxclust12 = (fatlength12 * 2 * sector_size) / 3;
+      if (maxclust12 > MAX_CLUST_12)
+	maxclust12 = MAX_CLUST_12;
+      if (verbose >= 2)
+	printf( "FAT12: #clu=%u, fatlen=%u, maxclu=%u, limit=%u\n",
+		clust12, fatlength12, maxclust12, MAX_CLUST_12 );
+      if (clust12 > maxclust12-2) {
+	clust12 = 0;
+	if (verbose >= 2)
+	  printf( "FAT12: too much clusters\n" );
+      }
+
+      clust16 = ((long long) fatdata *sector_size + nr_fats*4) /
+	((int) bs.cluster_size * sector_size + nr_fats*2);
+      fatlength16 = cdiv ((clust16+2) * 2, sector_size);
+      /* Need to recalculate number of clusters, since the unused parts of the
+       * FATS and data area together could make up space for an additional,
+       * not really present cluster. */
+      clust16 = (fatdata - nr_fats*fatlength16)/bs.cluster_size;
+      maxclust16 = (fatlength16 * sector_size) / 2;
+      if (maxclust16 > MAX_CLUST_16)
+	maxclust16 = MAX_CLUST_16;
+      if (verbose >= 2)
+	printf( "FAT16: #clu=%u, fatlen=%u, maxclu=%u, limit=%u\n",
+		clust16, fatlength16, maxclust16, MAX_CLUST_16 );
+      if (clust16 > maxclust16-2) {
+	if (verbose >= 2)
+	  printf( "FAT16: too much clusters\n" );
+	clust16 = 0;
+      }
+      /* The < 4078 avoids that the filesystem will be misdetected as having a
+       * 12 bit FAT. */
+      if (clust16 < FAT12_THRESHOLD && !(size_fat_by_user && size_fat == 16)) {
+	if (verbose >= 2)
+	  printf( clust16 < FAT12_THRESHOLD ?
+		  "FAT16: would be misdetected as FAT12\n" :
+		  "FAT16: too much clusters\n" );
+	clust16 = 0;
+      }
+
+      clust32 = ((long long) fatdata *sector_size + nr_fats*8) /
+	((int) bs.cluster_size * sector_size + nr_fats*4);
+      fatlength32 = cdiv ((clust32+2) * 4, sector_size);
+      /* Need to recalculate number of clusters, since the unused parts of the
+       * FATS and data area together could make up space for an additional,
+       * not really present cluster. */
+      clust32 = (fatdata - nr_fats*fatlength32)/bs.cluster_size;
+      maxclust32 = (fatlength32 * sector_size) / 4;
+      if (maxclust32 > MAX_CLUST_32)
+	maxclust32 = MAX_CLUST_32;
+      if (clust32 && clust32 < MIN_CLUST_32 && !(size_fat_by_user && size_fat == 32)) {
+       clust32 = 0;
+       if (verbose >= 2)
+         printf( "FAT32: not enough clusters (%d)\n", MIN_CLUST_32);
+      }
+      if (verbose >= 2)
+	printf( "FAT32: #clu=%u, fatlen=%u, maxclu=%u, limit=%u\n",
+		clust32, fatlength32, maxclust32, MAX_CLUST_32 );
+      if (clust32 > maxclust32) {
+	clust32 = 0;
+	if (verbose >= 2)
+	  printf( "FAT32: too much clusters\n" );
+      }
+
+      if ((clust12 && (size_fat == 0 || size_fat == 12)) ||
+	  (clust16 && (size_fat == 0 || size_fat == 16)) ||
+	  (clust32 && size_fat == 32))
+	break;
+
+      bs.cluster_size <<= 1;
+    } while (bs.cluster_size && bs.cluster_size <= maxclustsize);
+
+    /* Use the optimal FAT size if not specified;
+     * FAT32 is (not yet) choosen automatically */
+    if (!size_fat) {
+	size_fat = (clust16 > clust12) ? 16 : 12;
+	if (verbose >= 2)
+	  printf( "Choosing %d bits for FAT\n", size_fat );
+    }
+
+    switch (size_fat) {
+      case 12:
+	cluster_count = clust12;
+	fat_length = fatlength12;
+	bs.fat_length = CT_LE_W(fatlength12);
+	memcpy(vi->fs_type, MSDOS_FAT12_SIGN, 8);
+	break;
+
+      case 16:
+	if (clust16 < FAT12_THRESHOLD) {
+	    if (size_fat_by_user) {
+		fprintf( stderr, "WARNING: Not enough clusters for a "
+			 "16 bit FAT! The filesystem will be\n"
+			 "misinterpreted as having a 12 bit FAT without "
+			 "mount option \"fat=16\".\n" );
+	    }
+	    else {
+		fprintf( stderr, "This filesystem has an unfortunate size. "
+			 "A 12 bit FAT cannot provide\n"
+			 "enough clusters, but a 16 bit FAT takes up a little "
+			 "bit more space so that\n"
+			 "the total number of clusters becomes less than the "
+			 "threshold value for\n"
+			 "distinction between 12 and 16 bit FATs.\n" );
+		die( "Make the file system a bit smaller manually." );
+	    }
+	}
+	cluster_count = clust16;
+	fat_length = fatlength16;
+	bs.fat_length = CT_LE_W(fatlength16);
+	memcpy(vi->fs_type, MSDOS_FAT16_SIGN, 8);
+	break;
+
+      case 32:
+	if (clust32 < MIN_CLUST_32)
+	  fprintf(stderr, "WARNING: Not enough clusters for a 32 bit FAT!\n");
+	cluster_count = clust32;
+	fat_length = fatlength32;
+	bs.fat_length = CT_LE_W(0);
+	bs.fat32.fat32_length = CT_LE_L(fatlength32);
+	memcpy(vi->fs_type, MSDOS_FAT32_SIGN, 8);
+	break;
+
+      default:
+	die("FAT not 12, 16 or 32 bits");
+    }
+  }
+  else {
+    unsigned clusters, maxclust;
+
+    /* GEMDOS always uses a 12 bit FAT on floppies, and always a 16 bit FAT on
+     * hard disks. So use 12 bit if the size of the file system suggests that
+     * this fs is for a floppy disk, if the user hasn't explicitly requested a
+     * size.
+     */
+    if (!size_fat)
+      size_fat = (num_sectors == 1440 || num_sectors == 2400 ||
+		  num_sectors == 2880 || num_sectors == 5760) ? 12 : 16;
+    if (verbose >= 2)
+      printf( "Choosing %d bits for FAT\n", size_fat );
+
+    /* Atari format: cluster size should be 2, except explicitly requested by
+     * the user, since GEMDOS doesn't like other cluster sizes very much.
+     * Instead, tune the sector size for the FS to fit.
+     */
+    bs.cluster_size = sectors_per_cluster ? sectors_per_cluster : 2;
+    if (!sector_size_set) {
+      while( num_sectors > GEMDOS_MAX_SECTORS ) {
+	num_sectors >>= 1;
+	sector_size <<= 1;
+      }
+    }
+    if (verbose >= 2)
+      printf( "Sector size must be %d to have less than %d log. sectors\n",
+	      sector_size, GEMDOS_MAX_SECTORS );
+
+    /* Check if there are enough FAT indices for how much clusters we have */
+    do {
+      fatdata = num_sectors - cdiv (root_dir_entries * 32, sector_size) -
+		reserved_sectors;
+      /* The factor 2 below avoids cut-off errors for nr_fats == 1 and
+       * size_fat == 12
+       * The "2*nr_fats*size_fat/8" is for the reserved first two FAT entries
+       */
+      clusters = (2*((long long)fatdata*sector_size - 2*nr_fats*size_fat/8)) /
+		 (2*((int)bs.cluster_size*sector_size + nr_fats*size_fat/8));
+      fat_length = cdiv( (clusters+2)*size_fat/8, sector_size );
+      /* Need to recalculate number of clusters, since the unused parts of the
+       * FATS and data area together could make up space for an additional,
+       * not really present cluster. */
+      clusters = (fatdata - nr_fats*fat_length)/bs.cluster_size;
+      maxclust = (fat_length*sector_size*8)/size_fat;
+      if (verbose >= 2)
+	printf( "ss=%d: #clu=%d, fat_len=%d, maxclu=%d\n",
+		sector_size, clusters, fat_length, maxclust );
+
+      /* last 10 cluster numbers are special (except FAT32: 4 high bits rsvd);
+       * first two numbers are reserved */
+      if (maxclust <= (size_fat == 32 ? MAX_CLUST_32 : (1<<size_fat)-0x10) &&
+	  clusters <= maxclust-2)
+	break;
+      if (verbose >= 2)
+	printf( clusters > maxclust-2 ?
+		"Too many clusters\n" : "FAT too big\n" );
+
+      /* need to increment sector_size once more to  */
+      if (sector_size_set)
+	  die( "With this sector size, the maximum number of FAT entries "
+	       "would be exceeded." );
+      num_sectors >>= 1;
+      sector_size <<= 1;
+    } while( sector_size <= GEMDOS_MAX_SECTOR_SIZE );
+
+    if (sector_size > GEMDOS_MAX_SECTOR_SIZE)
+      die( "Would need a sector size > 16k, which GEMDOS can't work with");
+
+    cluster_count = clusters;
+    if (size_fat != 32)
+	bs.fat_length = CT_LE_W(fat_length);
+    else {
+	bs.fat_length = 0;
+	bs.fat32.fat32_length = CT_LE_L(fat_length);
+    }
+  }
+
+  bs.sector_size[0] = (char) (sector_size & 0x00ff);
+  bs.sector_size[1] = (char) ((sector_size & 0xff00) >> 8);
+
+  if (size_fat == 32)
+    {
+      /* set up additional FAT32 fields */
+      bs.fat32.flags = CT_LE_W(0);
+      bs.fat32.version[0] = 0;
+      bs.fat32.version[1] = 0;
+      bs.fat32.root_cluster = CT_LE_L(2);
+      bs.fat32.info_sector = CT_LE_W(1);
+      if (!backup_boot)
+	backup_boot = (reserved_sectors >= 7) ? 6 :
+		      (reserved_sectors >= 2) ? reserved_sectors-1 : 0;
+      else
+	{
+	  if (backup_boot == 1)
+	    die("Backup boot sector must be after sector 1");
+	  else if (backup_boot >= reserved_sectors)
+	    die("Backup boot sector must be a reserved sector");
+	}
+      if (verbose >= 2)
+	printf( "Using sector %d as backup boot sector (0 = none)\n",
+		backup_boot );
+      bs.fat32.backup_boot = CT_LE_W(backup_boot);
+      memset( &bs.fat32.reserved2, 0, sizeof(bs.fat32.reserved2) );
+    }
+
+  if (atari_format) {
+      /* Just some consistency checks */
+      if (num_sectors >= GEMDOS_MAX_SECTORS)
+	  die( "GEMDOS can't handle more than 65531 sectors" );
+      else if (num_sectors >= OLDGEMDOS_MAX_SECTORS)
+	  printf( "Warning: More than 32765 sector need TOS 1.04 "
+		  "or higher.\n" );
+  }
+  if (num_sectors >= 65536)
+    {
+      bs.sectors[0] = (char) 0;
+      bs.sectors[1] = (char) 0;
+      bs.total_sect = CT_LE_L(num_sectors);
+    }
+  else
+    {
+      bs.sectors[0] = (char) (num_sectors & 0x00ff);
+      bs.sectors[1] = (char) ((num_sectors & 0xff00) >> 8);
+      if (!atari_format)
+	  bs.total_sect = CT_LE_L(0);
+    }
+
+  if (!atari_format)
+    vi->ext_boot_sign = MSDOS_EXT_SIGN;
+
+  if (!cluster_count)
+    {
+      if (sectors_per_cluster)	/* If yes, die if we'd spec'd sectors per cluster */
+	die ("Too many clusters for file system - try more sectors per cluster");
+      else
+	die ("Attempting to create a too large file system");
+    }
+
+
+  /* The two following vars are in hard sectors, i.e. 512 byte sectors! */
+  start_data_sector = (reserved_sectors + nr_fats * fat_length) *
+		      (sector_size/HARD_SECTOR_SIZE);
+  start_data_block = (start_data_sector + SECTORS_PER_BLOCK - 1) /
+		     SECTORS_PER_BLOCK;
+
+  if (blocks < start_data_block + 32)	/* Arbitrary undersize file system! */
+    die ("Too few blocks for viable file system");
+
+  if (verbose)
+    {
+      printf("%s has %d head%s and %d sector%s per track,\n",
+	     device_name, CF_LE_W(bs.heads), (CF_LE_W(bs.heads) != 1) ? "s" : "",
+	     CF_LE_W(bs.secs_track), (CF_LE_W(bs.secs_track) != 1) ? "s" : "");
+      printf("logical sector size is %d,\n",sector_size);
+      printf("using 0x%02x media descriptor, with %d sectors;\n",
+	     (int) (bs.media), num_sectors);
+      printf("file system has %d %d-bit FAT%s and %d sector%s per cluster.\n",
+	     (int) (bs.fats), size_fat, (bs.fats != 1) ? "s" : "",
+	     (int) (bs.cluster_size), (bs.cluster_size != 1) ? "s" : "");
+      printf ("FAT size is %d sector%s, and provides %d cluster%s.\n",
+	      fat_length, (fat_length != 1) ? "s" : "",
+	      cluster_count, (cluster_count != 1) ? "s" : "");
+      if (size_fat != 32)
+	printf ("Root directory contains %d slots.\n",
+		(int) (bs.dir_entries[0]) + (int) (bs.dir_entries[1]) * 256);
+      printf ("Volume ID is %08lx, ", volume_id &
+	      (atari_format ? 0x00ffffff : 0xffffffff));
+      if ( strcmp(volume_name, "           ") )
+	printf("volume label %s.\n", volume_name);
+      else
+	printf("no volume label.\n");
+    }
+
+  /* Make the file allocation tables! */
+
+  if ((fat = (unsigned char *) malloc (fat_length * sector_size)) == NULL)
+    die ("unable to allocate space for FAT image in memory");
+
+  memset( fat, 0, fat_length * sector_size );
+
+  mark_FAT_cluster (0, 0xffffffff);	/* Initial fat entries */
+  mark_FAT_cluster (1, 0xffffffff);
+  fat[0] = (unsigned char) bs.media;	/* Put media type in first byte! */
+  if (size_fat == 32) {
+    /* Mark cluster 2 as EOF (used for root dir) */
+    mark_FAT_cluster (2, FAT_EOF);
+  }
+
+  /* Make the root directory entries */
+
+  size_root_dir = (size_fat == 32) ?
+		  bs.cluster_size*sector_size :
+		  (((int)bs.dir_entries[1]*256+(int)bs.dir_entries[0]) *
+		   sizeof (struct msdos_dir_entry));
+  if ((root_dir = (struct msdos_dir_entry *) malloc (size_root_dir)) == NULL)
+    {
+      free (fat);		/* Tidy up before we die! */
+      die ("unable to allocate space for root directory in memory");
+    }
+
+  memset(root_dir, 0, size_root_dir);
+  if ( memcmp(volume_name, "           ", 11) )
+    {
+      struct msdos_dir_entry *de = &root_dir[0];
+      memcpy(de->name, volume_name, 11);
+      de->attr = ATTR_VOLUME;
+      ctime = localtime(&create_time);
+      de->time = CT_LE_W((unsigned short)((ctime->tm_sec >> 1) +
+			  (ctime->tm_min << 5) + (ctime->tm_hour << 11)));
+      de->date = CT_LE_W((unsigned short)(ctime->tm_mday +
+					  ((ctime->tm_mon+1) << 5) +
+					  ((ctime->tm_year-80) << 9)));
+      de->ctime_ms = 0;
+      de->ctime = de->time;
+      de->cdate = de->date;
+      de->adate = de->date;
+      de->starthi = CT_LE_W(0);
+      de->start = CT_LE_W(0);
+      de->size = CT_LE_L(0);
+    }
+
+  if (size_fat == 32) {
+    /* For FAT32, create an info sector */
+    struct fat32_fsinfo *info;
+
+    if (!(info_sector = malloc( sector_size )))
+      die("Out of memory");
+    memset(info_sector, 0, sector_size);
+    /* fsinfo structure is at offset 0x1e0 in info sector by observation */
+    info = (struct fat32_fsinfo *)(info_sector + 0x1e0);
+
+    /* Info sector magic */
+    info_sector[0] = 'R';
+    info_sector[1] = 'R';
+    info_sector[2] = 'a';
+    info_sector[3] = 'A';
+
+    /* Magic for fsinfo structure */
+    info->signature = CT_LE_L(0x61417272);
+    /* We've allocated cluster 2 for the root dir. */
+    info->free_clusters = CT_LE_L(cluster_count - 1);
+    info->next_cluster = CT_LE_L(2);
+
+    /* Info sector also must have boot sign */
+    *(__u16 *)(info_sector + 0x1fe) = CT_LE_W(BOOT_SIGN);
+  }
+
+  if (!(blank_sector = malloc( sector_size )))
+      die( "Out of memory" );
+  memset(blank_sector, 0, sector_size);
+}
+
+
+/* Write the new filesystem's data tables to wherever they're going to end up! */
+
+#define error(str)				\
+  do {						\
+    free (fat);					\
+    if (info_sector) free (info_sector);	\
+    free (root_dir);				\
+    die (str);					\
+  } while(0)
+
+#define seekto(pos,errstr)						\
+  do {									\
+    loff_t __pos = (pos);						\
+    if (llseek (dev, __pos, SEEK_SET) != __pos)				\
+	error ("seek to " errstr " failed whilst writing tables");	\
+  } while(0)
+
+#define writebuf(buf,size,errstr)			\
+  do {							\
+    int __size = (size);				\
+    if (write (dev, buf, __size) != __size)		\
+	error ("failed whilst writing " errstr);	\
+  } while(0)
+
+
+static void
+write_tables (void)
+{
+  int x;
+  int fat_length;
+
+  fat_length = (size_fat == 32) ?
+	       CF_LE_L(bs.fat32.fat32_length) : CF_LE_W(bs.fat_length);
+
+  seekto( 0, "start of device" );
+  /* clear all reserved sectors */
+  for( x = 0; x < reserved_sectors; ++x )
+    writebuf( blank_sector, sector_size, "reserved sector" );
+  /* seek back to sector 0 and write the boot sector */
+  seekto( 0, "boot sector" );
+  writebuf( (char *) &bs, sizeof (struct msdos_boot_sector), "boot sector" );
+  /* on FAT32, write the info sector and backup boot sector */
+  if (size_fat == 32)
+    {
+      seekto( CF_LE_W(bs.fat32.info_sector)*sector_size, "info sector" );
+      writebuf( info_sector, 512, "info sector" );
+      if (backup_boot != 0)
+	{
+	  seekto( backup_boot*sector_size, "backup boot sector" );
+	  writebuf( (char *) &bs, sizeof (struct msdos_boot_sector),
+		    "backup boot sector" );
+	}
+    }
+  /* seek to start of FATS and write them all */
+  seekto( reserved_sectors*sector_size, "first FAT" );
+  for (x = 1; x <= nr_fats; x++)
+    writebuf( fat, fat_length * sector_size, "FAT" );
+  /* Write the root directory directly after the last FAT. This is the root
+   * dir area on FAT12/16, and the first cluster on FAT32. */
+  writebuf( (char *) root_dir, size_root_dir, "root directory" );
+
+  if (blank_sector) free( blank_sector );
+  if (info_sector) free( info_sector );
+  free (root_dir);   /* Free up the root directory space from setup_tables */
+  free (fat);  /* Free up the fat table space reserved during setup_tables */
+}
+
+
+/* Report the command usage and return a failure error code */
+
+void
+usage (void)
+{
+  fatal_error("\
+Usage: mkdosfs [-A] [-c] [-C] [-v] [-I] [-l bad-block-file] [-b backup-boot-sector]\n\
+       [-m boot-msg-file] [-n volume-name] [-i volume-id]\n\
+       [-s sectors-per-cluster] [-S logical-sector-size] [-f number-of-FATs]\n\
+       [-h hidden-sectors] [-F fat-size] [-r root-dir-entries] [-R reserved-sectors]\n\
+       /dev/name [blocks]\n");
+}
+
+/*
+ * ++roman: On m68k, check if this is an Atari; if yes, turn on Atari variant
+ * of MS-DOS filesystem by default.
+ */
+static void check_atari( void )
+{
+#ifdef __mc68000__
+    FILE *f;
+    char line[128], *p;
+
+    if (!(f = fopen( "/proc/hardware", "r" ))) {
+	perror( "/proc/hardware" );
+	return;
+    }
+
+    while( fgets( line, sizeof(line), f ) ) {
+	if (strncmp( line, "Model:", 6 ) == 0) {
+	    p = line + 6;
+	    p += strspn( p, " \t" );
+	    if (strncmp( p, "Atari ", 6 ) == 0)
+		atari_format = 1;
+	    break;
+	}
+    }
+    fclose( f );
+#endif
+}
+
+/* The "main" entry point into the utility - we pick up the options and attempt to process them in some sort of sensible
+   way.  In the event that some/all of the options are invalid we need to tell the user so that something can be done! */
+
+int
+main (int argc, char **argv)
+{
+  int c;
+  char *tmp;
+  char *listfile = NULL;
+  FILE *msgfile;
+  struct stat statbuf;
+  int i = 0, pos, ch;
+  int create = 0;
+  unsigned long long cblocks;
+  int min_sector_size;
+
+  if (argc && *argv) {		/* What's the program name? */
+    char *p;
+    program_name = *argv;
+    if ((p = strrchr( program_name, '/' )))
+	program_name = p+1;
+  }
+
+  gettimeofday(&create_timeval, NULL);
+  create_time = create_timeval.tv_sec;
+  volume_id = (u_int32_t)( (create_timeval.tv_sec << 20) | create_timeval.tv_usec );	/* Default volume ID = creation time, fudged for more uniqueness */
+  check_atari();
+
+  printf ("%s " VERSION " (" VERSION_DATE ")\n",
+	   program_name);
+
+  while ((c = getopt (argc, argv, "Ab:cCf:F:Ii:l:m:n:r:R:s:S:h:v")) != EOF)
+    /* Scan the command line for options */
+    switch (c)
+      {
+      case 'A':		/* toggle Atari format */
+	atari_format = !atari_format;
+	break;
+
+      case 'b':		/* b : location of backup boot sector */
+	backup_boot = (int) strtol (optarg, &tmp, 0);
+	if (*tmp || backup_boot < 2 || backup_boot > 0xffff)
+	  {
+	    printf ("Bad location for backup boot sector : %s\n", optarg);
+	    usage ();
+	  }
+	break;
+
+      case 'c':		/* c : Check FS as we build it */
+	check = TRUE;
+	break;
+
+      case 'C':		/* C : Create a new file */
+	create = TRUE;
+	break;
+
+      case 'f':		/* f : Choose number of FATs */
+	nr_fats = (int) strtol (optarg, &tmp, 0);
+	if (*tmp || nr_fats < 1 || nr_fats > 4)
+	  {
+	    printf ("Bad number of FATs : %s\n", optarg);
+	    usage ();
+	  }
+	break;
+
+      case 'F':		/* F : Choose FAT size */
+	size_fat = (int) strtol (optarg, &tmp, 0);
+	if (*tmp || (size_fat != 12 && size_fat != 16 && size_fat != 32))
+	  {
+	    printf ("Bad FAT type : %s\n", optarg);
+	    usage ();
+	  }
+	size_fat_by_user = 1;
+	break;
+
+      case 'h':        /* h : number of hidden sectors */
+	hidden_sectors = (int) strtol (optarg, &tmp, 0);
+	if ( *tmp || hidden_sectors < 0 )
+	  {
+	    printf("Bad number of hidden sectors : %s\n", optarg);
+	    usage ();
+	  }
+	break;
+
+      case 'I':
+	ignore_full_disk = 1;
+	break;
+
+      case 'i':		/* i : specify volume ID */
+	volume_id = strtoul(optarg, &tmp, 16);
+	if ( *tmp )
+	  {
+	    printf("Volume ID must be a hexadecimal number\n");
+	    usage();
+	  }
+	break;
+
+      case 'l':		/* l : Bad block filename */
+	listfile = optarg;
+	break;
+
+      case 'm':		/* m : Set boot message */
+	if ( strcmp(optarg, "-") )
+	  {
+	    msgfile = fopen(optarg, "r");
+	    if ( !msgfile )
+	      perror(optarg);
+	  }
+	else
+	  msgfile = stdin;
+
+	if ( msgfile )
+	  {
+	    /* The boot code ends at offset 448 and needs a null terminator */
+	    i = MESSAGE_OFFSET;
+	    pos = 0;		/* We are at beginning of line */
+	    do
+	      {
+		ch = getc(msgfile);
+		switch (ch)
+		  {
+		  case '\r':	/* Ignore CRs */
+		  case '\0':	/* and nulls */
+		    break;
+
+		  case '\n':	/* LF -> CR+LF if necessary */
+		    if ( pos )	/* If not at beginning of line */
+		      {
+			dummy_boot_code[i++] = '\r';
+			pos = 0;
+		      }
+		    dummy_boot_code[i++] = '\n';
+		    break;
+
+		  case '\t':	/* Expand tabs */
+		    do
+		      {
+			dummy_boot_code[i++] = ' ';
+			pos++;
+		      }
+		    while ( pos % 8 && i < BOOTCODE_SIZE-1 );
+		    break;
+
+		  case EOF:
+		    dummy_boot_code[i++] = '\0'; /* Null terminator */
+		    break;
+
+		  default:
+		    dummy_boot_code[i++] = ch; /* Store character */
+		    pos++;	/* Advance position */
+		    break;
+		  }
+	      }
+	    while ( ch != EOF && i < BOOTCODE_SIZE-1 );
+
+	    /* Fill up with zeros */
+	    while( i < BOOTCODE_SIZE-1 )
+		dummy_boot_code[i++] = '\0';
+	    dummy_boot_code[BOOTCODE_SIZE-1] = '\0'; /* Just in case */
+
+	    if ( ch != EOF )
+	      printf ("Warning: message too long; truncated\n");
+
+	    if ( msgfile != stdin )
+	      fclose(msgfile);
+	  }
+	break;
+
+      case 'n':		/* n : Volume name */
+	sprintf(volume_name, "%-11.11s", optarg);
+	break;
+
+      case 'r':		/* r : Root directory entries */
+	root_dir_entries = (int) strtol (optarg, &tmp, 0);
+	if (*tmp || root_dir_entries < 16 || root_dir_entries > 32768)
+	  {
+	    printf ("Bad number of root directory entries : %s\n", optarg);
+	    usage ();
+	  }
+	break;
+
+      case 'R':		/* R : number of reserved sectors */
+	reserved_sectors = (int) strtol (optarg, &tmp, 0);
+	if (*tmp || reserved_sectors < 1 || reserved_sectors > 0xffff)
+	  {
+	    printf ("Bad number of reserved sectors : %s\n", optarg);
+	    usage ();
+	  }
+	break;
+
+      case 's':		/* s : Sectors per cluster */
+	sectors_per_cluster = (int) strtol (optarg, &tmp, 0);
+	if (*tmp || (sectors_per_cluster != 1 && sectors_per_cluster != 2
+		     && sectors_per_cluster != 4 && sectors_per_cluster != 8
+		   && sectors_per_cluster != 16 && sectors_per_cluster != 32
+		&& sectors_per_cluster != 64 && sectors_per_cluster != 128))
+	  {
+	    printf ("Bad number of sectors per cluster : %s\n", optarg);
+	    usage ();
+	  }
+	break;
+
+      case 'S':		/* S : Sector size */
+	sector_size = (int) strtol (optarg, &tmp, 0);
+	if (*tmp || (sector_size != 512 && sector_size != 1024 &&
+		     sector_size != 2048 && sector_size != 4096 &&
+		     sector_size != 8192 && sector_size != 16384 &&
+		     sector_size != 32768))
+	  {
+	    printf ("Bad logical sector size : %s\n", optarg);
+	    usage ();
+	  }
+	sector_size_set = 1;
+	break;
+
+      case 'v':		/* v : Verbose execution */
+	++verbose;
+	break;
+
+      default:
+	printf( "Unknown option: %c\n", c );
+	usage ();
+      }
+  if (optind < argc)
+    {
+      device_name = argv[optind];  /* Determine the number of blocks in the FS */
+
+      if (!device_name) {
+	  printf("No device specified.\n");
+	  usage();
+      }
+
+      if (!create)
+         cblocks = count_blocks (device_name); /*  Have a look and see! */
+    }
+  if (optind == argc - 2)	/*  Either check the user specified number */
+    {
+      blocks = strtoull (argv[optind + 1], &tmp, 0);
+      if (!create && blocks != cblocks)
+	{
+	  fprintf (stderr, "Warning: block count mismatch: ");
+	  fprintf (stderr, "found %llu but assuming %llu.\n",cblocks,blocks);
+	}
+    }
+  else if (optind == argc - 1)	/*  Or use value found */
+    {
+      if (create)
+	die( "Need intended size with -C." );
+      blocks = cblocks;
+      tmp = "";
+    }
+  else
+    {
+      fprintf (stderr, "No device specified!\n");
+      usage ();
+    }
+  if (*tmp)
+    {
+      printf ("Bad block count : %s\n", argv[optind + 1]);
+      usage ();
+    }
+
+  if (check && listfile)	/* Auto and specified bad block handling are mutually */
+    die ("-c and -l are incompatible");		/* exclusive of each other! */
+
+  if (!create) {
+    check_mount (device_name);	/* Is the device already mounted? */
+    dev = open (device_name, O_EXCL|O_RDWR);	/* Is it a suitable device to build the FS on? */
+    if (dev < 0)
+      die ("unable to open %s");
+  }
+  else {
+      off_t offset = blocks*BLOCK_SIZE - 1;
+      char null = 0;
+      /* create the file */
+      dev = open( device_name, O_EXCL|O_RDWR|O_CREAT|O_TRUNC, 0666 );
+      if (dev < 0)
+	die("unable to create %s");
+      /* seek to the intended end-1, and write one byte. this creates a
+       * sparse-as-possible file of appropriate size. */
+      if (llseek( dev, offset, SEEK_SET ) != offset)
+	die( "seek failed" );
+      if (write( dev, &null, 1 ) < 0)
+	die( "write failed" );
+      if (llseek( dev, 0, SEEK_SET ) != 0)
+	die( "seek failed" );
+  }
+
+  if (fstat (dev, &statbuf) < 0)
+    die ("unable to stat %s");
+  if (!S_ISBLK (statbuf.st_mode)) {
+    statbuf.st_rdev = 0;
+    check = 0;
+  }
+  else
+    /*
+     * Ignore any 'full' fixed disk devices, if -I is not given.
+     * On a MO-disk one doesn't need partitions.  The filesytem can go
+     * directly to the whole disk.  Under other OSes this is known as
+     * the 'superfloppy' format.  As I don't know how to find out if
+     * this is a MO disk I introduce a -I (ignore) switch.  -Joey
+     */
+    if (!ignore_full_disk && (
+	(statbuf.st_rdev & 0xff3f) == 0x0300 || /* hda, hdb */
+	(statbuf.st_rdev & 0xff0f) == 0x0800 || /* sd */
+	(statbuf.st_rdev & 0xff3f) == 0x0d00 || /* xd */
+	(statbuf.st_rdev & 0xff3f) == 0x1600 )  /* hdc, hdd */
+	)
+      die ("Device partition expected, not making filesystem on entire device '%s' (use -I to override)");
+
+  if (sector_size_set)
+    {
+      if (ioctl(dev, BLKSSZGET, &min_sector_size) >= 0)
+          if (sector_size < min_sector_size)
+            {
+	      sector_size = min_sector_size;
+              fprintf(stderr, "Warning: sector size was set to %d (minimal for this device)\n", sector_size);
+            }
+    }
+  else
+    {
+      if (ioctl(dev, BLKSSZGET, &min_sector_size) >= 0)
+        {
+	  sector_size = min_sector_size;
+	  sector_size_set = 1;
+        }
+    }
+
+  if (sector_size > 4096)
+    fprintf(stderr,
+            "Warning: sector size is set to %d > 4096, such filesystem will not propably mount\n",
+            sector_size);
+
+  establish_params (statbuf.st_rdev,statbuf.st_size);
+                                /* Establish the media parameters */
+
+  setup_tables ();		/* Establish the file system tables */
+
+  if (check)			/* Determine any bad block locations and mark them */
+    check_blocks ();
+  else if (listfile)
+    get_list_blocks (listfile);
+
+  write_tables ();		/* Write the file system tables away! */
+
+  exit (0);			/* Terminate with no errors! */
+}
+
+
+/* That's All Folks */
+/* Local Variables: */
+/* tab-width: 8     */
+/* End:             */
diff --git a/src/version.h b/src/version.h
new file mode 100644
index 0000000..5a97926
--- /dev/null
+++ b/src/version.h
@@ -0,0 +1,28 @@
+/* version.h
+
+   Copyright (C) 1998-2005 Roman Hodek <Roman.Hodek@informatik.uni-erlangen.de>
+
+   This program is free software: you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation, either version 3 of the License, or
+   (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program. If not, see <http://www.gnu.org/licenses/>.
+
+   On Debian systems, the complete text of the GNU General Public License
+   can be found in /usr/share/common-licenses/GPL-3 file.
+*/
+
+#ifndef _version_h
+#define _version_h
+
+#define VERSION "3.0.1"
+#define VERSION_DATE "23 Nov 2008"
+
+#endif  /* _version_h */