49 files changed, 1099 insertions, 1439 deletions

diff --git a/Android.mk b/Android.mk
index 5d70c1856..c57e8dc10 100644
--- a/Android.mk
+++ b/Android.mk
@@ -575,7 +575,7 @@ ifneq ($(TW_NO_EXFAT), true)
             $(commands_recovery_local_path)/exfat/libexfat/Android.mk
 endif
 ifneq ($(TW_NO_EXFAT_FUSE), true)
-    include $(commands_recovery_local_path)/exfat/exfat-fuse/Android.mk
+    include $(commands_recovery_local_path)/exfat/fuse/Android.mk
 endif
 ifneq ($(TW_OEM_BUILD),true)
     include $(commands_recovery_local_path)/orscmd/Android.mk
diff --git a/exfat/COPYING b/exfat/COPYING
index 94a9ed024..d159169d1 100644
--- a/exfat/COPYING
+++ b/exfat/COPYING
@@ -1,622 +1,281 @@
                     GNU GENERAL PUBLIC LICENSE
-                       Version 3, 29 June 2007
+                       Version 2, June 1991
 
- Copyright (C) 2007 Free Software Foundation, Inc. <http://fsf.org/>
+ Copyright (C) 1989, 1991 Free Software Foundation, Inc.,
+ 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
  Everyone is permitted to copy and distribute verbatim copies
  of this license document, but changing it is not allowed.
 
                             Preamble
 
-  The GNU General Public License is a free, copyleft license for
-software and other kinds of works.
-
-  The licenses for most software and other practical works are designed
-to take away your freedom to share and change the works.  By contrast,
-the GNU General Public License is intended to guarantee your freedom to
-share and change all versions of a program--to make sure it remains free
-software for all its users.  We, the Free Software Foundation, use the
-GNU General Public License for most of our software; it applies also to
-any other work released this way by its authors.  You can apply it to
+  The licenses for most software are designed to take away your
+freedom to share and change it.  By contrast, the GNU General Public
+License is intended to guarantee your freedom to share and change free
+software--to make sure the software is free for all its users.  This
+General Public License applies to most of the Free Software
+Foundation's software and to any other program whose authors commit to
+using it.  (Some other Free Software Foundation software is covered by
+the GNU Lesser General Public License instead.)  You can apply it to
 your programs, too.
 
   When we speak of free software, we are referring to freedom, not
 price.  Our General Public Licenses are designed to make sure that you
 have the freedom to distribute copies of free software (and charge for
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+this service if you wish), that you receive source code or can get it
+if you want it, that you can change the software or use pieces of it
+in new free programs; and that you know you can do these things.
 
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+  To protect your rights, we need to make restrictions that forbid
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+These restrictions translate to certain responsibilities for you if you
+distribute copies of the software, or if you modify it.
 
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+
+  We protect your rights with two steps: (1) copyright the software, and
+(2) offer you this license which gives you legal permission to copy,
+distribute and/or modify the software.
+
+  Also, for each author's protection and ours, we want to make certain
+that everyone understands that there is no warranty for this free
+software.  If the software is modified by someone else and passed on, we
+want its recipients to know that what they have is not the original, so
+that any problems introduced by others will not reflect on the original
+authors' reputations.
+
+  Finally, any free program is threatened constantly by software
+patents.  We wish to avoid the danger that redistributors of a free
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+program proprietary.  To prevent this, we have made it clear that any
+patent must be licensed for everyone's free use or not licensed at all.
 
   The precise terms and conditions for copying, distribution and
 modification follow.
 
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+  7. If, as a consequence of a court judgment or allegation of patent
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+  8. If the distribution and/or use of the Program is restricted in
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+
+  9. The Free Software Foundation may publish revised and/or new versions
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 address new problems or concerns.
 
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-  16. Limitation of Liability.
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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
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-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.
+Each version is given a distinguishing version number.  If the Program
+specifies a version number of this License which applies to it and "any
+later version", you have the option of following the terms and conditions
+either of that version or of any later version published by the Free
+Software Foundation.  If the Program does not specify a version number of
+this License, you may choose any version ever published by the Free Software
+Foundation.
+
+  10. If you wish to incorporate parts of the Program into other free
+programs whose distribution conditions are different, write to the author
+to ask for permission.  For software which is copyrighted by the Free
+Software Foundation, write to the Free Software Foundation; we sometimes
+make exceptions for this.  Our decision will be guided by the two goals
+of preserving the free status of all derivatives of our free software and
+of promoting the sharing and reuse of software generally.
+
+                            NO WARRANTY
+
+  11. BECAUSE THE PROGRAM IS LICENSED FREE OF CHARGE, THERE IS NO WARRANTY
+FOR THE PROGRAM, TO THE EXTENT PERMITTED BY APPLICABLE LAW.  EXCEPT WHEN
+OTHERWISE STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR OTHER PARTIES
+PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY 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.
+
+  12. IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
+WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MAY MODIFY AND/OR
+REDISTRIBUTE 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.
 
                      END OF TERMS AND CONDITIONS
 
@@ -628,15 +287,15 @@ 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
+convey 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
+    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
+    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,
@@ -644,31 +303,37 @@ the "copyright" line and a pointer to where the full notice is found.
     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/>.
+    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.
 
 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:
+If the program is interactive, 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'.
+    Gnomovision version 69, Copyright (C) year name of author
+    Gnomovision 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>.
+parts of the General Public License.  Of course, the commands you use may
+be called something other than `show w' and `show c'; they could even be
+mouse-clicks or menu items--whatever suits your program.
+
+You should also get your employer (if you work as a programmer) or your
+school, if any, to sign a "copyright disclaimer" for the program, if
+necessary.  Here is a sample; alter the names:
+
+  Yoyodyne, Inc., hereby disclaims all copyright interest in the program
+  `Gnomovision' (which makes passes at compilers) written by James Hacker.
+
+  <signature of Ty Coon>, 1 April 1989
+  Ty Coon, President of Vice
+
+This 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.
diff --git a/exfat/ChangeLog b/exfat/ChangeLog
index e24b2d60b..d6f99d037 100644
--- a/exfat/ChangeLog
+++ b/exfat/ChangeLog
@@ -1,3 +1,52 @@
+1.2.2 (2015-11-09)
+
+* Improved reliability in case of a sudden unplug: FS will be in a clean state
+after closing all files and performing sync(1).
+* Fixed compilation on Debian GNU/kFreeBSD and GNU/Hurd platforms.
+* Updated mount.exfat-fuse man page.
+
+1.2.1 (2015-09-24)
+
+* Fixed compatibility with Zalman VE-200: now newly created directories do not
+have archive bit set.
+* Fixed heap corruption: malformed FS can use invalid sector or cluster size.
+* Fixed hang on mount: malformed FS can have cyclic references in the clusters
+map.
+
+1.2.0 (2015-08-26)
+
+* Switched from SCons to autotools.
+* Added musl libc support [Brendan Heading].
+* Worked around "FS is larger than device" error for memory cards formatted by
+Panasonic Lumix cameras.
+* Worked around "unknown entry type 0xe1" error for memory cards formatted by
+Sony cameras.
+
+1.1.1 (2014-11-15)
+
+* Fixed mkfs crash on some sectors-per-cluster (-s option) values.
+
+1.1.0 (2014-07-08)
+
+* Relicensed the project from GPLv3+ to GPLv2+.
+* OpenBSD support [Helg Bredow].
+* Improved I/O errors handling.
+* Implemented fsync() and fsyncdir().
+* Fixed crash on Mac OS X 10.5 caused by non-standard use of realpath(). Also
+fixed TrueCrypt disks unmounting.
+* Avoid extra erase on writes to the end of a file. This should improve linear
+write speed.
+* Allow arbitrary changing of lower 9 bits of mode. Allow owner/group changing
+to the same owner/group. This fixes rsync.
+* Fixed buffers overflows when handling lengthy file names.
+* Fixed "real size does not equal to size" error on volumes with pagefile.sys.
+* Fixed negative IUsed in "df -i" output.
+
+1.0.1 (2013-02-02)
+
+* Fixed unexpected removal of a directory if it is moved into itself.
+* Fixed "Operation not permitted" error on reading an empty file.
+
 1.0.0 (2013-01-19)
 
 * Fixed crash when renaming a file within a single directory and a new name
diff --git a/exfat/README.md b/exfat/README.md
new file mode 100644
index 000000000..3cf58b7e2
--- /dev/null
+++ b/exfat/README.md
@@ -0,0 +1,60 @@
+About
+-----
+
+This project aims to provide a full-featured [exFAT][1] file system implementation for Unix-like systems. It consists of a [FUSE][2] module (fuse-exfat) and a set of utilities (exfat-utils).
+
+Supported operating systems:
+
+* GNU/Linux
+* Mac OS X 10.5 or later
+* FreeBSD
+* OpenBSD
+
+Most GNU/Linux distributions already have fuse-exfat and exfat-utils in their repositories, so you can just install and use them. The next chapter describes how to compile them from source.
+
+Compiling
+---------
+
+To build this project under GNU/Linux you need to install the following packages:
+
+* git
+* autoconf
+* automake
+* pkg-config
+* fuse-devel (or libfuse-dev)
+* gcc
+* make
+
+Get the source code, change directory and compile:
+
+    git clone https://github.com/relan/exfat.git
+    cd exfat
+    autoreconf --install
+    ./configure --prefix=/usr
+    make
+
+Then install driver and utilities:
+
+    sudo make install
+
+You can remove them using this command:
+
+    sudo make uninstall
+
+Mounting
+--------
+
+Modern GNU/Linux distributions will mount exFAT volumes automatically—util-linux-ng 2.18 (was renamed to util-linux in 2.19) is required for this. Anyway, you can mount manually (you will need root privileges):
+
+    sudo mount.exfat-fuse /dev/sdXn /mnt/exfat
+
+where /dev/sdXn is the partition special file, /mnt/exfat is a mountpoint.
+
+Feedback
+--------
+
+If you have any questions, issues, suggestions, bug reports, etc. please create an [issue][3]. Pull requests are also welcome!
+
+[1]: http://en.wikipedia.org/wiki/ExFAT
+[2]: http://en.wikipedia.org/wiki/Filesystem_in_Userspace
+[3]: https://github.com/relan/exfat/issues
diff --git a/exfat/dump/dumpexfat.8 b/exfat/dump/dumpexfat.8
index 7fea0653c..5cf3995ed 100644
--- a/exfat/dump/dumpexfat.8
+++ b/exfat/dump/dumpexfat.8
@@ -1,11 +1,11 @@
-.\" Copyright (C) 2011  Andrew Nayenko
+.\" Copyright (C) 2011-2015  Andrew Nayenko
 .\"
 .TH DUMPEXFAT 8 "February 2011"
 .SH NAME
 .B dumpexfat
 \- dump exFAT file system
 .SH SYNOPSIS
-.B exfatlabel
+.B dumpexfat
 [
 .B \-s
 ]
diff --git a/exfat/dump/main.c b/exfat/dump/main.c
index 7ef571d2f..b6e040947 100644
--- a/exfat/dump/main.c
+++ b/exfat/dump/main.c
@@ -3,7 +3,7 @@
 	Prints detailed information about exFAT volume.
 
 	Free exFAT implementation.
-	Copyright (C) 2011-2013  Andrew Nayenko
+	Copyright (C) 2011-2015  Andrew Nayenko
 
 	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
@@ -20,12 +20,12 @@
 	51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
 */
 
+#include <exfat.h>
 #include <fcntl.h>
 #include <unistd.h>
 #include <inttypes.h>
 #include <stdio.h>
 #include <string.h>
-#include <exfat.h>
 
 static void print_generic_info(const struct exfat_super_block* sb)
 {
@@ -85,13 +85,13 @@ static int dump_sb(const char* spec)
 	if (exfat_read(dev, &sb, sizeof(struct exfat_super_block)) < 0)
 	{
 		exfat_close(dev);
-		exfat_error("failed to read from `%s'", spec);
+		exfat_error("failed to read from '%s'", spec);
 		return 1;
 	}
 	if (memcmp(sb.oem_name, "EXFAT   ", sizeof(sb.oem_name)) != 0)
 	{
 		exfat_close(dev);
-		exfat_error("exFAT file system is not found on `%s'", spec);
+		exfat_error("exFAT file system is not found on '%s'", spec);
 		return 1;
 	}
 
@@ -153,8 +153,7 @@ int main(int argc, char* argv[])
 	bool sb_only = false;
 	bool used_sectors = false;
 
-	printf("dumpexfat %u.%u.%u\n",
-			EXFAT_VERSION_MAJOR, EXFAT_VERSION_MINOR, EXFAT_VERSION_PATCH);
+	printf("dumpexfat %s\n", VERSION);
 
 	while ((opt = getopt(argc, argv, "suV")) != -1)
 	{
@@ -167,7 +166,7 @@ int main(int argc, char* argv[])
 			used_sectors = true;
 			break;
 		case 'V':
-			puts("Copyright (C) 2011-2013  Andrew Nayenko");
+			puts("Copyright (C) 2011-2015  Andrew Nayenko");
 			return 0;
 		default:
 			usage(argv[0]);
diff --git a/exfat/fsck/Android.mk b/exfat/fsck/Android.mk
index 2cada95f5..5ad03028f 100644
--- a/exfat/fsck/Android.mk
+++ b/exfat/fsck/Android.mk
@@ -1,16 +1,16 @@
 LOCAL_PATH := $(call my-dir)
-
 include $(CLEAR_VARS)
 
 LOCAL_MODULE := fsckexfat
 LOCAL_MODULE_STEM := fsck.exfat
+LOCAL_MODULE_CLASS := RECOVERY_EXECUTABLES
 LOCAL_MODULE_TAGS := optional
 LOCAL_MODULE_PATH := $(TARGET_RECOVERY_ROOT_OUT)/sbin
 LOCAL_CFLAGS = -D_FILE_OFFSET_BITS=64
 LOCAL_SRC_FILES =  main.c
 LOCAL_C_INCLUDES += $(LOCAL_PATH) \
-                    $(commands_recovery_local_path)/exfat/libexfat \
-                    $(commands_recovery_local_path)/fuse/include
-LOCAL_SHARED_LIBRARIES += libexfat_twrp
+					$(commands_recovery_local_path)/exfat/libexfat \
+					$(commands_recovery_local_path)/fuse/include
+LOCAL_SHARED_LIBRARIES := libexfat_twrp
 
 include $(BUILD_EXECUTABLE)
diff --git a/exfat/fsck/exfatfsck.8 b/exfat/fsck/exfatfsck.8
index 40d7c85f5..e95048845 100644
--- a/exfat/fsck/exfatfsck.8
+++ b/exfat/fsck/exfatfsck.8
@@ -1,4 +1,4 @@
-.\" Copyright (C) 2011  Andrew Nayenko
+.\" Copyright (C) 2011-2015  Andrew Nayenko
 .\"
 .TH EXFATFSCK 8 "February 2011"
 .SH NAME
diff --git a/exfat/fsck/main.c b/exfat/fsck/main.c
index 91f754594..ded76b20c 100644
--- a/exfat/fsck/main.c
+++ b/exfat/fsck/main.c
@@ -3,7 +3,7 @@
 	exFAT file system checker.
 
 	Free exFAT implementation.
-	Copyright (C) 2011-2013  Andrew Nayenko
+	Copyright (C) 2011-2015  Andrew Nayenko
 
 	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
@@ -20,10 +20,9 @@
 	51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
 */
 
+#include <exfat.h>
 #include <stdio.h>
 #include <string.h>
-#include <exfat.h>
-#include <exfatfs.h>
 #include <inttypes.h>
 #include <unistd.h>
 
@@ -45,7 +44,7 @@ static int nodeck(struct exfat* ef, struct exfat_node* node)
 			char name[UTF8_BYTES(EXFAT_NAME_MAX) + 1];
 
 			exfat_get_name(node, name, sizeof(name) - 1);
-			exfat_error("file `%s' has invalid cluster 0x%x", name, c);
+			exfat_error("file '%s' has invalid cluster 0x%x", name, c);
 			rc = 1;
 			break;
 		}
@@ -54,7 +53,7 @@ static int nodeck(struct exfat* ef, struct exfat_node* node)
 			char name[UTF8_BYTES(EXFAT_NAME_MAX) + 1];
 
 			exfat_get_name(node, name, sizeof(name) - 1);
-			exfat_error("cluster 0x%x of file `%s' is not allocated", c, name);
+			exfat_error("cluster 0x%x of file '%s' is not allocated", c, name);
 			rc = 1;
 		}
 		c = exfat_next_cluster(ef, node, c);
@@ -72,16 +71,20 @@ static void dirck(struct exfat* ef, const char* path)
 	char* entry_path;
 
 	if (exfat_lookup(ef, &parent, path) != 0)
-		exfat_bug("directory `%s' is not found", path);
+		exfat_bug("directory '%s' is not found", path);
 	if (!(parent->flags & EXFAT_ATTRIB_DIR))
-		exfat_bug("`%s' is not a directory (0x%x)", path, parent->flags);
+		exfat_bug("'%s' is not a directory (0x%x)", path, parent->flags);
 	if (nodeck(ef, parent) != 0)
+	{
+		exfat_put_node(ef, parent);
 		return;
+	}
 
 	path_length = strlen(path);
 	entry_path = malloc(path_length + 1 + UTF8_BYTES(EXFAT_NAME_MAX) + 1);
 	if (entry_path == NULL)
 	{
+		exfat_put_node(ef, parent);
 		exfat_error("out of memory");
 		return;
 	}
@@ -93,7 +96,6 @@ static void dirck(struct exfat* ef, const char* path)
 	{
 		free(entry_path);
 		exfat_put_node(ef, parent);
-		exfat_error("failed to open directory `%s'", path);
 		return;
 	}
 	while ((node = exfat_readdir(ef, &it)))
@@ -138,15 +140,14 @@ int main(int argc, char* argv[])
 	const char* spec = NULL;
 	struct exfat ef;
 
-	printf("exfatfsck %u.%u.%u\n",
-			EXFAT_VERSION_MAJOR, EXFAT_VERSION_MINOR, EXFAT_VERSION_PATCH);
+	printf("exfatfsck %s\n", VERSION);
 
 	while ((opt = getopt(argc, argv, "V")) != -1)
 	{
 		switch (opt)
 		{
 		case 'V':
-			puts("Copyright (C) 2011-2013  Andrew Nayenko");
+			puts("Copyright (C) 2011-2015  Andrew Nayenko");
 			return 0;
 		default:
 			usage(argv[0]);
diff --git a/exfat/exfat-fuse/Android.mk b/exfat/fuse/Android.mk
index ff5ef3e0d..1b5d08467 100644
--- a/exfat/exfat-fuse/Android.mk
+++ b/exfat/fuse/Android.mk
@@ -3,15 +3,15 @@ include $(CLEAR_VARS)
 
 LOCAL_MODULE := exfat-fuse
 LOCAL_MODULE_CLASS := RECOVERY_EXECUTABLES
-LOCAL_MODULE_TAGS := eng
-LOCAL_MODULE_PATH := $(TARGET_RECOVERY_ROOT_OUT)/sbin
 LOCAL_MODULE_TAGS := optional
+LOCAL_MODULE_PATH := $(TARGET_RECOVERY_ROOT_OUT)/sbin
 LOCAL_CFLAGS = -D_FILE_OFFSET_BITS=64
 LOCAL_SRC_FILES = main.c 
 LOCAL_C_INCLUDES += $(LOCAL_PATH) \
 					$(commands_recovery_local_path)/exfat/libexfat \
-					$(commands_recovery_local_path)/fuse/include
-LOCAL_SHARED_LIBRARIES += libz libc libexfat_twrp libdl
-LOCAL_STATIC_LIBRARIES += libfusetwrp
+					$(commands_recovery_local_path)/fuse/include \
+					$(commands_recovery_local_path)/fuse/android
+LOCAL_SHARED_LIBRARIES := libexfat_twrp
+LOCAL_STATIC_LIBRARIES := libfusetwrp
 
 include $(BUILD_EXECUTABLE)
diff --git a/exfat/exfat-fuse/main.c b/exfat/fuse/main.c
index abb60e7df..aad082b68 100644
--- a/exfat/exfat-fuse/main.c
+++ b/exfat/fuse/main.c
@@ -3,7 +3,7 @@
 	FUSE-based exFAT implementation. Requires FUSE 2.6 or later.
 
 	Free exFAT implementation.
-	Copyright (C) 2010-2013  Andrew Nayenko
+	Copyright (C) 2010-2015  Andrew Nayenko
 
 	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
@@ -20,6 +20,7 @@
 	51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
 */
 
+#include <exfat.h>
 #define FUSE_USE_VERSION 26
 #include <fuse.h>
 #include <errno.h>
@@ -27,21 +28,22 @@
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
-#include <exfat.h>
 #include <inttypes.h>
 #include <limits.h>
 #include <sys/types.h>
 #include <pwd.h>
 #include <unistd.h>
 
-#define exfat_debug(format, ...)
+#ifndef DEBUG
+	#define exfat_debug(format, ...)
+#endif
 
 #if !defined(FUSE_VERSION) || (FUSE_VERSION < 26)
 	#error FUSE 2.6 or later is required
 #endif
 
 const char* default_options = "ro_fallback,allow_other,blkdev,big_writes,"
-		"defer_permissions";
+		"default_permissions";
 
 struct exfat ef;
 
@@ -53,6 +55,7 @@ static struct exfat_node* get_node(const struct fuse_file_info* fi)
 static void set_node(struct fuse_file_info* fi, struct exfat_node* node)
 {
 	fi->fh = (uint64_t) (size_t) node;
+	fi->keep_cache = 1;
 }
 
 static int fuse_exfat_getattr(const char* path, struct stat* stbuf)
@@ -71,7 +74,7 @@ static int fuse_exfat_getattr(const char* path, struct stat* stbuf)
 	return 0;
 }
 
-static int fuse_exfat_truncate(const char* path, off64_t size)
+static int fuse_exfat_truncate(const char* path, off_t size)
 {
 	struct exfat_node* node;
 	int rc;
@@ -83,12 +86,19 @@ static int fuse_exfat_truncate(const char* path, off64_t size)
 		return rc;
 
 	rc = exfat_truncate(&ef, node, size, true);
+	if (rc != 0)
+	{
+		exfat_flush_node(&ef, node);	/* ignore return code */
+		exfat_put_node(&ef, node);
+		return rc;
+	}
+	rc = exfat_flush_node(&ef, node);
 	exfat_put_node(&ef, node);
 	return rc;
 }
 
 static int fuse_exfat_readdir(const char* path, void* buffer,
-		fuse_fill_dir_t filler, off64_t offset, struct fuse_file_info* fi)
+		fuse_fill_dir_t filler, off_t offset, struct fuse_file_info* fi)
 {
 	struct exfat_node* parent;
 	struct exfat_node* node;
@@ -104,7 +114,7 @@ static int fuse_exfat_readdir(const char* path, void* buffer,
 	if (!(parent->flags & EXFAT_ATTRIB_DIR))
 	{
 		exfat_put_node(&ef, parent);
-		exfat_error("`%s' is not a directory (0x%x)", path, parent->flags);
+		exfat_error("'%s' is not a directory (0x%x)", path, parent->flags);
 		return -ENOTDIR;
 	}
 
@@ -115,7 +125,7 @@ static int fuse_exfat_readdir(const char* path, void* buffer,
 	if (rc != 0)
 	{
 		exfat_put_node(&ef, parent);
-		exfat_error("failed to open directory `%s'", path);
+		exfat_error("failed to open directory '%s'", path);
 		return rc;
 	}
 	while ((node = exfat_readdir(&ef, &it)))
@@ -143,15 +153,51 @@ static int fuse_exfat_open(const char* path, struct fuse_file_info* fi)
 	if (rc != 0)
 		return rc;
 	set_node(fi, node);
-	fi->keep_cache = 1;
+	return 0;
+}
+
+static int fuse_exfat_create(const char* path, mode_t mode,
+		struct fuse_file_info* fi)
+{
+	struct exfat_node* node;
+	int rc;
+
+	exfat_debug("[%s] %s 0%ho", __func__, path, mode);
+
+	rc = exfat_mknod(&ef, path);
+	if (rc != 0)
+		return rc;
+	rc = exfat_lookup(&ef, &node, path);
+	if (rc != 0)
+		return rc;
+	set_node(fi, node);
 	return 0;
 }
 
 static int fuse_exfat_release(const char* path, struct fuse_file_info* fi)
 {
+	/*
+	   This handler is called by FUSE on close() syscall. If the FUSE
+	   implementation does not call flush handler, we will flush node here.
+	   But in this case we will not be able to return an error to the caller.
+	   See fuse_exfat_flush() below.
+	*/
 	exfat_debug("[%s] %s", __func__, path);
+ 	exfat_flush_node(&ef, get_node(fi));
 	exfat_put_node(&ef, get_node(fi));
-	return 0;
+	return 0; /* FUSE ignores this return value */
+}
+
+static int fuse_exfat_flush(const char* path, struct fuse_file_info* fi)
+{
+	/*
+	   This handler may be called by FUSE on close() syscall. FUSE also deals
+	   with removals of open files, so we don't free clusters on close but
+	   only on rmdir and unlink. If the FUSE implementation does not call this
+	   handler we will flush node on release. See fuse_exfat_relase() above.
+	*/
+	exfat_debug("[%s] %s", __func__, path);
+	return exfat_flush_node(&ef, get_node(fi));
 }
 
 static int fuse_exfat_fsync(const char* path, int datasync,
@@ -160,7 +206,7 @@ static int fuse_exfat_fsync(const char* path, int datasync,
 	int rc;
 
 	exfat_debug("[%s] %s", __func__, path);
-	rc = exfat_flush_node(&ef, get_node(fi));
+	rc = exfat_flush_nodes(&ef);
 	if (rc != 0)
 		return rc;
 	rc = exfat_flush(&ef);
@@ -170,7 +216,7 @@ static int fuse_exfat_fsync(const char* path, int datasync,
 }
 
 static int fuse_exfat_read(const char* path, char* buffer, size_t size,
-		off64_t offset, struct fuse_file_info* fi)
+		off_t offset, struct fuse_file_info* fi)
 {
 	ssize_t ret;
 
@@ -182,7 +228,7 @@ static int fuse_exfat_read(const char* path, char* buffer, size_t size,
 }
 
 static int fuse_exfat_write(const char* path, const char* buffer, size_t size,
-		off64_t offset, struct fuse_file_info* fi)
+		off_t offset, struct fuse_file_info* fi)
 {
 	ssize_t ret;
 
@@ -206,7 +252,9 @@ static int fuse_exfat_unlink(const char* path)
 
 	rc = exfat_unlink(&ef, node);
 	exfat_put_node(&ef, node);
-	return rc;
+	if (rc != 0)
+		return rc;
+	return exfat_cleanup_node(&ef, node);
 }
 
 static int fuse_exfat_rmdir(const char* path)
@@ -222,7 +270,9 @@ static int fuse_exfat_rmdir(const char* path)
 
 	rc = exfat_rmdir(&ef, node);
 	exfat_put_node(&ef, node);
-	return rc;
+	if (rc != 0)
+		return rc;
+	return exfat_cleanup_node(&ef, node);
 }
 
 static int fuse_exfat_mknod(const char* path, mode_t mode, dev_t dev)
@@ -255,8 +305,9 @@ static int fuse_exfat_utimens(const char* path, const struct timespec tv[2])
 		return rc;
 
 	exfat_utimes(node, tv);
+	rc = exfat_flush_node(&ef, node);
 	exfat_put_node(&ef, node);
-	return 0;
+	return rc;
 }
 
 static int fuse_exfat_chmod(const char* path, mode_t mode)
@@ -295,7 +346,7 @@ static int fuse_exfat_statfs(const char* path, struct statvfs* sfs)
 	   b) no such thing as inode;
 	   So here we assume that inode = cluster.
 	*/
-	sfs->f_files = (sfs->f_blocks - sfs->f_bfree) >> ef.sb->spc_bits;
+	sfs->f_files = le32_to_cpu(ef.sb->cluster_count);
 	sfs->f_favail = sfs->f_bfree >> ef.sb->spc_bits;
 	sfs->f_ffree = sfs->f_bavail;
 
@@ -329,7 +380,9 @@ static struct fuse_operations fuse_exfat_ops =
 	.truncate	= fuse_exfat_truncate,
 	.readdir	= fuse_exfat_readdir,
 	.open		= fuse_exfat_open,
+	.create		= fuse_exfat_create,
 	.release	= fuse_exfat_release,
+	.flush		= fuse_exfat_flush,
 	.fsync		= fuse_exfat_fsync,
 	.fsyncdir	= fuse_exfat_fsync,
 	.read		= fuse_exfat_read,
@@ -350,6 +403,7 @@ static struct fuse_operations fuse_exfat_ops =
 static char* add_option(char* options, const char* name, const char* value)
 {
 	size_t size;
+	char* optionsf = options;
 
 	if (value)
 		size = strlen(options) + strlen(name) + strlen(value) + 3;
@@ -359,6 +413,7 @@ static char* add_option(char* options, const char* name, const char* value)
 	options = realloc(options, size);
 	if (options == NULL)
 	{
+		free(optionsf);
 		exfat_error("failed to reallocate options string");
 		return NULL;
 	}
@@ -428,8 +483,7 @@ int main(int argc, char* argv[])
 	struct fuse* fh = NULL;
 	int opt;
 
-	printf("FUSE exfat %u.%u.%u\n",
-			EXFAT_VERSION_MAJOR, EXFAT_VERSION_MINOR, EXFAT_VERSION_PATCH);
+	printf("FUSE exfat %s\n", VERSION);
 
 	mount_options = strdup(default_options);
 	if (mount_options == NULL)
@@ -454,7 +508,7 @@ int main(int argc, char* argv[])
 			break;
 		case 'V':
 			free(mount_options);
-			puts("Copyright (C) 2010-2013  Andrew Nayenko");
+			puts("Copyright (C) 2010-2015  Andrew Nayenko");
 			return 0;
 		case 'v':
 			break;
diff --git a/exfat/exfat-fuse/mount.exfat-fuse.8 b/exfat/fuse/mount.exfat-fuse.8
index b7e9d5682..38586ca45 100644
--- a/exfat/exfat-fuse/mount.exfat-fuse.8
+++ b/exfat/fuse/mount.exfat-fuse.8
@@ -1,4 +1,4 @@
-.\" Copyright (C) 2010  Andrew Nayenko
+.\" Copyright (C) 2010-2015  Andrew Nayenko
 .\"
 .TH EXFAT-FUSE 8 "July 2010"
 .SH NAME
@@ -56,7 +56,7 @@ Ignored.
 Set the umask (the bitmask of the permissions that are
 .B not
 present, in octal).
-The default is the umask of the current process.
+The default is 0.
 .TP
 .BI dmask= value
 Set the umask for directories only.
@@ -81,6 +81,26 @@ Do not update access time when file is read.
 .SH EXIT CODES
 Zero is returned on successful mount. Any other code means an error.
 
+.SH BUGS
+exFAT is a case-insensitive file system. Some things can behave unexpectedly,
+e.g. directory renaming that changes only case of some characters:
+
+.B \t$ mv FOO Foo
+.br
+.B \tmv: cannot move \(cqFOO\(cq to a subdirectory of itself, \(cqFoo/FOO\(cq
+
+This happens because
+.B mv
+finds that destination exists (for case-insensitive file
+systems
+.B FOO
+and
+.B Foo
+are the same thing) and adds source basename to the destination. The file
+system gets
+.B rename(\(dqFOO\(dq,\ \(dqFoo/FOO\(dq)
+syscall and returns an error.
+
 .SH AUTHOR
 Andrew Nayenko
 
diff --git a/exfat/label/exfatlabel.8 b/exfat/label/exfatlabel.8
index dd2ef1c00..bff6e7996 100644
--- a/exfat/label/exfatlabel.8
+++ b/exfat/label/exfatlabel.8
@@ -1,4 +1,4 @@
-.\" Copyright (C) 2011  Andrew Nayenko
+.\" Copyright (C) 2011-2015  Andrew Nayenko
 .\"
 .TH EXFATLABEL 8 "February 2011"
 .SH NAME
diff --git a/exfat/label/main.c b/exfat/label/main.c
index 2e5b5caf6..b219d4e65 100644
--- a/exfat/label/main.c
+++ b/exfat/label/main.c
@@ -3,7 +3,7 @@
 	Prints or changes exFAT volume label.
 
 	Free exFAT implementation.
-	Copyright (C) 2011-2013  Andrew Nayenko
+	Copyright (C) 2011-2015  Andrew Nayenko
 
 	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
@@ -20,9 +20,9 @@
 	51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
 */
 
+#include <exfat.h>
 #include <stdio.h>
 #include <string.h>
-#include <exfat.h>
 
 int main(int argc, char* argv[])
 {
@@ -33,9 +33,8 @@ int main(int argc, char* argv[])
 	for (pp = argv + 1; *pp; pp++)
 		if (strcmp(*pp, "-V") == 0)
 		{
-			printf("exfatlabel %u.%u.%u\n", EXFAT_VERSION_MAJOR,
-					EXFAT_VERSION_MINOR, EXFAT_VERSION_PATCH);
-			puts("Copyright (C) 2011-2013  Andrew Nayenko");
+			printf("exfatlabel %s\n", VERSION);
+			puts("Copyright (C) 2011-2015  Andrew Nayenko");
 			return 0;
 		}
 
diff --git a/exfat/libexfat/Android.mk b/exfat/libexfat/Android.mk
index a280abb0e..5476486ee 100644
--- a/exfat/libexfat/Android.mk
+++ b/exfat/libexfat/Android.mk
@@ -1,12 +1,11 @@
 LOCAL_PATH := $(call my-dir)
-
 include $(CLEAR_VARS)
 
 LOCAL_MODULE := libexfat_twrp
 LOCAL_MODULE_TAGS := optional
 LOCAL_CFLAGS = -D_FILE_OFFSET_BITS=64
-LOCAL_SRC_FILES = cluster.c io.c log.c lookup.c mount.c node.c time.c utf.c utils.c 
-LOCAL_C_INCLUDES += $(LOCAL_PATH) \
+LOCAL_SRC_FILES = cluster.c io.c log.c lookup.c mount.c node.c time.c utf.c utils.c
+LOCAL_C_INCLUDES += $(LOCAL_PATH)
 LOCAL_SHARED_LIBRARIES += libc
 
 include $(BUILD_SHARED_LIBRARY)
diff --git a/exfat/libexfat/COPYING b/exfat/libexfat/COPYING
deleted file mode 100644
index d159169d1..000000000
--- a/exfat/libexfat/COPYING
+++ /dev/null
@@ -1,339 +0,0 @@
-                    GNU GENERAL PUBLIC LICENSE
-                       Version 2, June 1991
-
- Copyright (C) 1989, 1991 Free Software Foundation, Inc.,
- 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
- Everyone is permitted to copy and distribute verbatim copies
- of this license document, but changing it is not allowed.
-
-                            Preamble
-
-  The licenses for most software are designed to take away your
-freedom to share and change it.  By contrast, the GNU General Public
-License is intended to guarantee your freedom to share and change free
-software--to make sure the software is free for all its users.  This
-General Public License applies to most of the Free Software
-Foundation's software and to any other program whose authors commit to
-using it.  (Some other Free Software Foundation software is covered by
-the GNU Lesser General Public License instead.)  You can apply it to
-your programs, too.
-
-  When we speak of free software, we are referring to freedom, not
-price.  Our General Public Licenses are designed to make sure that you
-have the freedom to distribute copies of free software (and charge for
-this service if you wish), that you receive source code or can get it
-if you want it, that you can change the software or use pieces of it
-in new free programs; and that you know you can do these things.
-
-  To protect your rights, we need to make restrictions that forbid
-anyone to deny you these rights or to ask you to surrender the rights.
-These restrictions translate to certain responsibilities for you if you
-distribute copies of the software, or if you modify it.
-
-  For example, if you distribute copies of such a program, whether
-gratis or for a fee, you must give the recipients all the rights that
-you have.  You must make sure that they, too, receive or can get the
-source code.  And you must show them these terms so they know their
-rights.
-
-  We protect your rights with two steps: (1) copyright the software, and
-(2) offer you this license which gives you legal permission to copy,
-distribute and/or modify the software.
-
-  Also, for each author's protection and ours, we want to make certain
-that everyone understands that there is no warranty for this free
-software.  If the software is modified by someone else and passed on, we
-want its recipients to know that what they have is not the original, so
-that any problems introduced by others will not reflect on the original
-authors' reputations.
-
-  Finally, any free program is threatened constantly by software
-patents.  We wish to avoid the danger that redistributors of a free
-program will individually obtain patent licenses, in effect making the
-program proprietary.  To prevent this, we have made it clear that any
-patent must be licensed for everyone's free use or not licensed at all.
-
-  The precise terms and conditions for copying, distribution and
-modification follow.
-
-                    GNU GENERAL PUBLIC LICENSE
-   TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION
-
-  0. This License applies to any program or other work which contains
-a notice placed by the copyright holder saying it may be distributed
-under the terms of this General Public License.  The "Program", below,
-refers to any such program or work, and a "work based on the Program"
-means either the Program or any derivative work under copyright law:
-that is to say, a work containing the Program or a portion of it,
-either verbatim or with modifications and/or translated into another
-language.  (Hereinafter, translation is included without limitation in
-the term "modification".)  Each licensee is addressed as "you".
-
-Activities other than copying, distribution and modification are not
-covered by this License; they are outside its scope.  The act of
-running the Program is not restricted, and the output from the Program
-is covered only if its contents constitute a work based on the
-Program (independent of having been made by running the Program).
-Whether that is true depends on what the Program does.
-
-  1. You may copy and distribute verbatim copies of the Program's
-source code as you receive it, in any medium, provided that you
-conspicuously and appropriately publish on each copy an appropriate
-copyright notice and disclaimer of warranty; keep intact all the
-notices that refer to this License and to the absence of any warranty;
-and give any other recipients of the Program a copy of this License
-along with the Program.
-
-You may charge a fee for the physical act of transferring a copy, and
-you may at your option offer warranty protection in exchange for a fee.
-
-  2. You may modify your copy or copies of the Program or any portion
-of it, thus forming a work based on the Program, and copy and
-distribute such modifications or work under the terms of Section 1
-above, provided that you also meet all of these conditions:
-
-    a) You must cause the modified files to carry prominent notices
-    stating that you changed the files and the date of any change.
-
-    b) You must cause any work that you distribute or publish, that in
-    whole or in part contains or is derived from the Program or any
-    part thereof, to be licensed as a whole at no charge to all third
-    parties under the terms of this License.
-
-    c) If the modified program normally reads commands interactively
-    when run, you must cause it, when started running for such
-    interactive use in the most ordinary way, to print or display an
-    announcement including an appropriate copyright notice and a
-    notice that there is no warranty (or else, saying that you provide
-    a warranty) and that users may redistribute the program under
-    these conditions, and telling the user how to view a copy of this
-    License.  (Exception: if the Program itself is interactive but
-    does not normally print such an announcement, your work based on
-    the Program is not required to print an announcement.)
-
-These requirements apply to the modified work as a whole.  If
-identifiable sections of that work are not derived from the Program,
-and can be reasonably considered independent and separate works in
-themselves, then this License, and its terms, do not apply to those
-sections when you distribute them as separate works.  But when you
-distribute the same sections as part of a whole which is a work based
-on the Program, the distribution of the whole must be on the terms of
-this License, whose permissions for other licensees extend to the
-entire whole, and thus to each and every part regardless of who wrote it.
-
-Thus, it is not the intent of this section to claim rights or contest
-your rights to work written entirely by you; rather, the intent is to
-exercise the right to control the distribution of derivative or
-collective works based on the Program.
-
-In addition, mere aggregation of another work not based on the Program
-with the Program (or with a work based on the Program) on a volume of
-a storage or distribution medium does not bring the other work under
-the scope of this License.
-
-  3. You may copy and distribute the Program (or a work based on it,
-under Section 2) in object code or executable form under the terms of
-Sections 1 and 2 above provided that you also do one of the following:
-
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-  4. You may not copy, modify, sublicense, or distribute the Program
-except as expressly provided under this License.  Any attempt
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-  6. Each time you redistribute the Program (or any work based on the
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-  7. If, as a consequence of a court judgment or allegation of patent
-infringement or for any other reason (not limited to patent issues),
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-license would not permit royalty-free redistribution of the Program by
-all those who receive copies directly or indirectly through you, then
-the only way you could satisfy both it and this License would be to
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-If any portion of this section is held invalid or unenforceable under
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-to distribute software through any other system and a licensee cannot
-impose that choice.
-
-This section is intended to make thoroughly clear what is believed to
-be a consequence of the rest of this License.
-
-  8. If the distribution and/or use of the Program is restricted in
-certain countries either by patents or by copyrighted interfaces, the
-original copyright holder who places the Program under this License
-may add an explicit geographical distribution limitation excluding
-those countries, so that distribution is permitted only in or among
-countries not thus excluded.  In such case, this License incorporates
-the limitation as if written in the body of this License.
-
-  9. The Free Software Foundation may publish revised and/or new versions
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-address new problems or concerns.
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-Each version is given a distinguishing version number.  If the Program
-specifies a version number of this License which applies to it and "any
-later version", you have the option of following the terms and conditions
-either of that version or of any later version published by the Free
-Software Foundation.  If the Program does not specify a version number of
-this License, you may choose any version ever published by the Free Software
-Foundation.
-
-  10. If you wish to incorporate parts of the Program into other free
-programs whose distribution conditions are different, write to the author
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-                            NO WARRANTY
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-OTHERWISE STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR OTHER PARTIES
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-  12. IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
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-INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING
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-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.
-
-                     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
-convey 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 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.
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-    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.
-
-Also add information on how to contact you by electronic and paper mail.
-
-If the program is interactive, make it output a short notice like this
-when it starts in an interactive mode:
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-    Gnomovision version 69, Copyright (C) year name of author
-    Gnomovision 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.
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-The hypothetical commands `show w' and `show c' should show the appropriate
-parts of the General Public License.  Of course, the commands you use may
-be called something other than `show w' and `show c'; they could even be
-mouse-clicks or menu items--whatever suits your program.
-
-You should also get your employer (if you work as a programmer) or your
-school, if any, to sign a "copyright disclaimer" for the program, if
-necessary.  Here is a sample; alter the names:
-
-  Yoyodyne, Inc., hereby disclaims all copyright interest in the program
-  `Gnomovision' (which makes passes at compilers) written by James Hacker.
-
-  <signature of Ty Coon>, 1 April 1989
-  Ty Coon, President of Vice
-
-This 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.
diff --git a/exfat/libexfat/android_config.h b/exfat/libexfat/android_config.h
new file mode 100644
index 000000000..09c3346f8
--- /dev/null
+++ b/exfat/libexfat/android_config.h
@@ -0,0 +1,37 @@
+/* libexfat/config.h.  Generated from config.h.in by configure.  */
+/* libexfat/config.h.in.  Generated from configure.ac by autoheader.  */
+
+/* Name of package */
+#define PACKAGE "exfat"
+
+/* Define to the address where bug reports for this package should be sent. */
+#define PACKAGE_BUGREPORT "relan@users.noreply.github.com"
+
+/* Define to the full name of this package. */
+#define PACKAGE_NAME "Free exFAT implementation"
+
+/* Define to the full name and version of this package. */
+#define PACKAGE_STRING "Free exFAT implementation 1.2.2"
+
+/* Define to the one symbol short name of this package. */
+#define PACKAGE_TARNAME "exfat"
+
+/* Define to the home page for this package. */
+#define PACKAGE_URL "https://github.com/relan/exfat"
+
+/* Define to the version of this package. */
+#define PACKAGE_VERSION "1.2.2"
+
+/* Version number of package */
+#define VERSION "1.2.2"
+
+/* Enable large inode numbers on Mac OS X 10.5.  */
+#ifndef _DARWIN_USE_64_BIT_INODE
+# define _DARWIN_USE_64_BIT_INODE 1
+#endif
+
+/* Number of bits in a file offset, on hosts where this is settable. */
+/* #undef _FILE_OFFSET_BITS */
+
+/* Define for large files, on AIX-style hosts. */
+/* #undef _LARGE_FILES */
diff --git a/exfat/libexfat/byteorder.h b/exfat/libexfat/byteorder.h
index 10746e1ef..472cb487c 100644
--- a/exfat/libexfat/byteorder.h
+++ b/exfat/libexfat/byteorder.h
@@ -3,7 +3,7 @@
 	Endianness stuff. exFAT uses little-endian byte order.
 
 	Free exFAT implementation.
-	Copyright (C) 2010-2013  Andrew Nayenko
+	Copyright (C) 2010-2015  Andrew Nayenko
 
 	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
@@ -23,68 +23,16 @@
 #ifndef BYTEORDER_H_INCLUDED
 #define BYTEORDER_H_INCLUDED
 
-#define __GLIBC__
+#include "platform.h"
 #include <stdint.h>
-
-#if defined(__GLIBC__)
-
-#include <endian.h>
-#include <byteswap.h>
-
-#elif defined(__APPLE__)
-
-#include <machine/endian.h>
-#include <libkern/OSByteOrder.h>
-#define bswap_16(x) OSSwapInt16(x)
-#define bswap_32(x) OSSwapInt32(x)
-#define bswap_64(x) OSSwapInt64(x)
-#define __BYTE_ORDER BYTE_ORDER
-#define __LITTLE_ENDIAN LITTLE_ENDIAN
-#define __BIG_ENDIAN BIG_ENDIAN
-
-#elif defined(__FreeBSD__) || defined(__DragonFlyBSD__) || defined(__NetBSD__)
-
-#include <sys/endian.h>
-#define bswap_16(x) bswap16(x)
-#define bswap_32(x) bswap32(x)
-#define bswap_64(x) bswap64(x)
-#define __BYTE_ORDER _BYTE_ORDER
-#define __LITTLE_ENDIAN _LITTLE_ENDIAN
-#define __BIG_ENDIAN _BIG_ENDIAN
-
-#elif defined(__OpenBSD__)
-
-#include <machine/endian.h>
-#define bswap_16(x) swap16(x)
-#define bswap_32(x) swap32(x)
-#define bswap_64(x) swap64(x)
-#define __BYTE_ORDER _BYTE_ORDER
-#define __LITTLE_ENDIAN _LITTLE_ENDIAN
-#define __BIG_ENDIAN _BIG_ENDIAN
-
-#elif defined(__sun)
-
-#include <sys/byteorder.h>
-#define bswap_16(x) BSWAP_16(x)
-#define bswap_32(x) BSWAP_32(x)
-#define bswap_64(x) BSWAP_64(x)
-#define __LITTLE_ENDIAN 1234
-#define __BIG_ENDIAN 4321
-#ifdef _LITTLE_ENDIAN
-#define __BYTE_ORDER __LITTLE_ENDIAN
-#else
-#define __BYTE_ORDER __BIG_ENDIAN
-#endif
-
-#else 
-#error No byte order macros available for your platform
-#endif
+#include <stddef.h>
 
 typedef struct { uint16_t __u16; } le16_t;
 typedef struct { uint32_t __u32; } le32_t;
 typedef struct { uint64_t __u64; } le64_t;
 
-#if __BYTE_ORDER == __LITTLE_ENDIAN
+#if EXFAT_BYTE_ORDER == EXFAT_LITTLE_ENDIAN
+
 static inline uint16_t le16_to_cpu(le16_t v) { return v.__u16; }
 static inline uint32_t le32_to_cpu(le32_t v) { return v.__u32; }
 static inline uint64_t le64_to_cpu(le64_t v) { return v.__u64; }
@@ -92,17 +40,27 @@ static inline uint64_t le64_to_cpu(le64_t v) { return v.__u64; }
 static inline le16_t cpu_to_le16(uint16_t v) { le16_t t = {v}; return t; }
 static inline le32_t cpu_to_le32(uint32_t v) { le32_t t = {v}; return t; }
 static inline le64_t cpu_to_le64(uint64_t v) { le64_t t = {v}; return t; }
-#elif __BYTE_ORDER == __BIG_ENDIAN
-static inline uint16_t le16_to_cpu(le16_t v) { return bswap_16(v.__u16); }
-static inline uint32_t le32_to_cpu(le32_t v) { return bswap_32(v.__u32); }
-static inline uint64_t le64_to_cpu(le64_t v) { return bswap_64(v.__u64); }
+
+typedef size_t bitmap_t;
+
+#elif EXFAT_BYTE_ORDER == EXFAT_BIG_ENDIAN
+
+static inline uint16_t le16_to_cpu(le16_t v)
+	{ return exfat_bswap16(v.__u16); }
+static inline uint32_t le32_to_cpu(le32_t v)
+	{ return exfat_bswap32(v.__u32); }
+static inline uint64_t le64_to_cpu(le64_t v)
+	{ return exfat_bswap64(v.__u64); }
 
 static inline le16_t cpu_to_le16(uint16_t v)
-	{ le16_t t = {bswap_16(v)}; return t; }
+	{ le16_t t = {exfat_bswap16(v)}; return t; }
 static inline le32_t cpu_to_le32(uint32_t v)
-	{ le32_t t = {bswap_32(v)}; return t; }
+	{ le32_t t = {exfat_bswap32(v)}; return t; }
 static inline le64_t cpu_to_le64(uint64_t v)
-	{ le64_t t = {bswap_64(v)}; return t; }
+	{ le64_t t = {exfat_bswap64(v)}; return t; }
+
+typedef unsigned char bitmap_t;
+
 #else
 #error Wow! You have a PDP machine?!
 #endif
diff --git a/exfat/libexfat/cluster.c b/exfat/libexfat/cluster.c
index 2215636c6..fc3657b53 100644
--- a/exfat/libexfat/cluster.c
+++ b/exfat/libexfat/cluster.c
@@ -3,7 +3,7 @@
 	exFAT file system implementation library.
 
 	Free exFAT implementation.
-	Copyright (C) 2010-2013  Andrew Nayenko
+	Copyright (C) 2010-2015  Andrew Nayenko
 
 	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
@@ -28,7 +28,7 @@
 /*
  * Sector to absolute offset.
  */
-static off64_t s2o(const struct exfat* ef, off64_t sector)
+static off_t s2o(const struct exfat* ef, off_t sector)
 {
 	return sector << ef->sb->sector_bits;
 }
@@ -36,18 +36,18 @@ static off64_t s2o(const struct exfat* ef, off64_t sector)
 /*
  * Cluster to sector.
  */
-static off64_t c2s(const struct exfat* ef, cluster_t cluster)
+static off_t c2s(const struct exfat* ef, cluster_t cluster)
 {
 	if (cluster < EXFAT_FIRST_DATA_CLUSTER)
 		exfat_bug("invalid cluster number %u", cluster);
 	return le32_to_cpu(ef->sb->cluster_sector_start) +
-		((off64_t) (cluster - EXFAT_FIRST_DATA_CLUSTER) << ef->sb->spc_bits);
+		((off_t) (cluster - EXFAT_FIRST_DATA_CLUSTER) << ef->sb->spc_bits);
 }
 
 /*
  * Cluster to absolute offset.
  */
-off64_t exfat_c2o(const struct exfat* ef, cluster_t cluster)
+off_t exfat_c2o(const struct exfat* ef, cluster_t cluster)
 {
 	return s2o(ef, c2s(ef, cluster));
 }
@@ -55,7 +55,7 @@ off64_t exfat_c2o(const struct exfat* ef, cluster_t cluster)
 /*
  * Sector to cluster.
  */
-static cluster_t s2c(const struct exfat* ef, off64_t sector)
+static cluster_t s2c(const struct exfat* ef, off_t sector)
 {
 	return ((sector - le32_to_cpu(ef->sb->cluster_sector_start)) >>
 			ef->sb->spc_bits) + EXFAT_FIRST_DATA_CLUSTER;
@@ -74,7 +74,7 @@ cluster_t exfat_next_cluster(const struct exfat* ef,
 		const struct exfat_node* node, cluster_t cluster)
 {
 	le32_t next;
-	off64_t fat_offset;
+	off_t fat_offset;
 
 	if (cluster < EXFAT_FIRST_DATA_CLUSTER)
 		exfat_bug("bad cluster 0x%x", cluster);
@@ -83,9 +83,9 @@ cluster_t exfat_next_cluster(const struct exfat* ef,
 		return cluster + 1;
 	fat_offset = s2o(ef, le32_to_cpu(ef->sb->fat_sector_start))
 		+ cluster * sizeof(cluster_t);
-	/* FIXME handle I/O error */
 	if (exfat_pread(ef->dev, &next, sizeof(next), fat_offset) < 0)
-		exfat_bug("failed to read the next cluster after %#x", cluster);
+		return EXFAT_CLUSTER_BAD; /* the caller should handle this and print
+		                             appropriate error message */
 	return le32_to_cpu(next);
 }
 
@@ -136,6 +136,24 @@ static cluster_t find_bit_and_set(bitmap_t* bitmap, size_t start, size_t end)
 	return EXFAT_CLUSTER_END;
 }
 
+static int flush_nodes(struct exfat* ef, struct exfat_node* node)
+{
+	struct exfat_node* p;
+
+	for (p = node->child; p != NULL; p = p->next)
+	{
+		int rc = flush_nodes(ef, p);
+		if (rc != 0)
+			return rc;
+	}
+	return exfat_flush_node(ef, node);
+}
+
+int exfat_flush_nodes(struct exfat* ef)
+{
+	return flush_nodes(ef, ef->root);
+}
+
 int exfat_flush(struct exfat* ef)
 {
 	if (ef->cmap.dirty)
@@ -149,13 +167,14 @@ int exfat_flush(struct exfat* ef)
 		}
 		ef->cmap.dirty = false;
 	}
+
 	return 0;
 }
 
 static bool set_next_cluster(const struct exfat* ef, bool contiguous,
 		cluster_t current, cluster_t next)
 {
-	off64_t fat_offset;
+	off_t fat_offset;
 	le32_t next_le32;
 
 	if (contiguous)
@@ -316,6 +335,7 @@ static int shrink_file(struct exfat* ef, struct exfat_node* node,
 	{
 		previous = node->start_cluster;
 		node->start_cluster = EXFAT_CLUSTER_FREE;
+		node->flags |= EXFAT_ATTRIB_DIRTY;
 	}
 	node->fptr_index = 0;
 	node->fptr_cluster = node->start_cluster;
@@ -339,7 +359,7 @@ static int shrink_file(struct exfat* ef, struct exfat_node* node,
 	return 0;
 }
 
-static bool erase_raw(struct exfat* ef, size_t size, off64_t offset)
+static bool erase_raw(struct exfat* ef, size_t size, off_t offset)
 {
 	if (exfat_pwrite(ef->dev, ef->zero_cluster, size, offset) < 0)
 	{
@@ -452,7 +472,7 @@ static int find_used_clusters(const struct exfat* ef,
 	return 0;
 }
 
-int exfat_find_used_sectors(const struct exfat* ef, off64_t* a, off64_t* b)
+int exfat_find_used_sectors(const struct exfat* ef, off_t* a, off_t* b)
 {
 	cluster_t ca, cb;
 
diff --git a/exfat/libexfat/compiler.h b/exfat/libexfat/compiler.h
index 6edd8ec7f..3b092a9b9 100644
--- a/exfat/libexfat/compiler.h
+++ b/exfat/libexfat/compiler.h
@@ -4,7 +4,7 @@
 	showstopper.
 
 	Free exFAT implementation.
-	Copyright (C) 2010-2013  Andrew Nayenko
+	Copyright (C) 2010-2015  Andrew Nayenko
 
 	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
@@ -24,6 +24,10 @@
 #ifndef COMPILER_H_INCLUDED
 #define COMPILER_H_INCLUDED
 
+#if defined(__STDC_VERSION__) && (__STDC_VERSION__ < 199901L)
+#error C99-compliant compiler is required
+#endif
+
 #if defined(__clang__)
 
 #define PRINTF __attribute__((format(printf, 1, 2)))
diff --git a/exfat/libexfat/exfat.h b/exfat/libexfat/exfat.h
index ff58e8414..5beba7cba 100644
--- a/exfat/libexfat/exfat.h
+++ b/exfat/libexfat/exfat.h
@@ -4,7 +4,7 @@
 	implementation.
 
 	Free exFAT implementation.
-	Copyright (C) 2010-2013  Andrew Nayenko
+	Copyright (C) 2010-2015  Andrew Nayenko
 
 	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
@@ -24,15 +24,19 @@
 #ifndef EXFAT_H_INCLUDED
 #define EXFAT_H_INCLUDED
 
+#if defined(__ANDROID__)
+#include "android_config.h"
+#else
+#include "config.h"
+#endif
+#include "compiler.h"
+#include "exfatfs.h"
 #include <stdio.h>
 #include <stdlib.h>
 #include <time.h>
 #include <stdbool.h>
 #include <sys/stat.h>
 #include <sys/types.h>
-#include "compiler.h"
-#include "exfatfs.h"
-#include "version.h"
 
 #define EXFAT_NAME_MAX 256
 #define EXFAT_ATTRIB_CONTIGUOUS 0x10000
@@ -51,7 +55,6 @@
 #define ROUND_UP(x, d) (DIV_ROUND_UP(x, d) * (d))
 #define UTF8_BYTES(c) ((c) * 6) /* UTF-8 character can occupy up to 6 bytes */
 
-typedef size_t bitmap_t;
 #define BMAP_SIZE(count) (ROUND_UP(count, sizeof(bitmap_t) * 8) / 8)
 #define BMAP_BLOCK(index) ((index) / sizeof(bitmap_t) / 8)
 #define BMAP_MASK(index) ((bitmap_t) 1 << ((index) % (sizeof(bitmap_t) * 8)))
@@ -62,6 +65,10 @@ typedef size_t bitmap_t;
 #define BMAP_CLR(bitmap, index) \
 	((bitmap)[BMAP_BLOCK(index)] &= ~BMAP_MASK(index))
 
+/* The size of off_t type must be 64 bits. File systems larger than 2 GB will
+   be corrupted with 32-bit off_t. */
+STATIC_ASSERT(sizeof(off_t) == 8);
+
 struct exfat_node
 {
 	struct exfat_node* parent;
@@ -73,7 +80,7 @@ struct exfat_node
 	uint32_t fptr_index;
 	cluster_t fptr_cluster;
 	cluster_t entry_cluster;
-	off64_t entry_offset;
+	off_t entry_offset;
 	cluster_t start_cluster;
 	int flags;
 	uint64_t size;
@@ -139,18 +146,18 @@ struct exfat_dev* exfat_open(const char* spec, enum exfat_mode mode);
 int exfat_close(struct exfat_dev* dev);
 int exfat_fsync(struct exfat_dev* dev);
 enum exfat_mode exfat_get_mode(const struct exfat_dev* dev);
-off64_t exfat_get_size(const struct exfat_dev* dev);
-off64_t exfat_seek(struct exfat_dev* dev, off64_t offset, int whence);
+off_t exfat_get_size(const struct exfat_dev* dev);
+off_t exfat_seek(struct exfat_dev* dev, off_t offset, int whence);
 ssize_t exfat_read(struct exfat_dev* dev, void* buffer, size_t size);
 ssize_t exfat_write(struct exfat_dev* dev, const void* buffer, size_t size);
 ssize_t exfat_pread(struct exfat_dev* dev, void* buffer, size_t size,
-		off64_t offset);
+		off_t offset);
 ssize_t exfat_pwrite(struct exfat_dev* dev, const void* buffer, size_t size,
-		off64_t offset);
+		off_t offset);
 ssize_t exfat_generic_pread(const struct exfat* ef, struct exfat_node* node,
-		void* buffer, size_t size, off64_t offset);
+		void* buffer, size_t size, off_t offset);
 ssize_t exfat_generic_pwrite(struct exfat* ef, struct exfat_node* node,
-		const void* buffer, size_t size, off64_t offset);
+		const void* buffer, size_t size, off_t offset);
 
 int exfat_opendir(struct exfat* ef, struct exfat_node* dir,
 		struct exfat_iterator* it);
@@ -161,16 +168,17 @@ int exfat_lookup(struct exfat* ef, struct exfat_node** node,
 int exfat_split(struct exfat* ef, struct exfat_node** parent,
 		struct exfat_node** node, le16_t* name, const char* path);
 
-off64_t exfat_c2o(const struct exfat* ef, cluster_t cluster);
+off_t exfat_c2o(const struct exfat* ef, cluster_t cluster);
 cluster_t exfat_next_cluster(const struct exfat* ef,
 		const struct exfat_node* node, cluster_t cluster);
 cluster_t exfat_advance_cluster(const struct exfat* ef,
 		struct exfat_node* node, uint32_t count);
+int exfat_flush_nodes(struct exfat* ef);
 int exfat_flush(struct exfat* ef);
 int exfat_truncate(struct exfat* ef, struct exfat_node* node, uint64_t size,
 		bool erase);
 uint32_t exfat_count_free_clusters(const struct exfat* ef);
-int exfat_find_used_sectors(const struct exfat* ef, off64_t* a, off64_t* b);
+int exfat_find_used_sectors(const struct exfat* ef, off_t* a, off_t* b);
 
 void exfat_stat(const struct exfat* ef, const struct exfat_node* node,
 		struct stat* stbuf);
@@ -194,6 +202,7 @@ size_t utf16_length(const le16_t* str);
 
 struct exfat_node* exfat_get_node(struct exfat_node* node);
 void exfat_put_node(struct exfat* ef, struct exfat_node* node);
+int exfat_cleanup_node(struct exfat* ef, struct exfat_node* node);
 int exfat_cache_directory(struct exfat* ef, struct exfat_node* dir);
 void exfat_reset_cache(struct exfat* ef);
 int exfat_flush_node(struct exfat* ef, struct exfat_node* node);
diff --git a/exfat/libexfat/exfatfs.h b/exfat/libexfat/exfatfs.h
index a436daa63..eca2cacea 100644
--- a/exfat/libexfat/exfatfs.h
+++ b/exfat/libexfat/exfatfs.h
@@ -3,7 +3,7 @@
 	Definitions of structures and constants used in exFAT file system.
 
 	Free exFAT implementation.
-	Copyright (C) 2010-2013  Andrew Nayenko
+	Copyright (C) 2010-2015  Andrew Nayenko
 
 	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
@@ -24,6 +24,7 @@
 #define EXFATFS_H_INCLUDED
 
 #include "byteorder.h"
+#include "compiler.h"
 
 typedef uint32_t cluster_t;		/* cluster number */
 
@@ -69,6 +70,7 @@ STATIC_ASSERT(sizeof(struct exfat_super_block) == 512);
 
 #define EXFAT_ENTRY_VALID     0x80
 #define EXFAT_ENTRY_CONTINUED 0x40
+#define EXFAT_ENTRY_OPTIONAL  0x20
 
 #define EXFAT_ENTRY_BITMAP    (0x01 | EXFAT_ENTRY_VALID)
 #define EXFAT_ENTRY_UPCASE    (0x02 | EXFAT_ENTRY_VALID)
@@ -153,10 +155,10 @@ struct exfat_entry_meta2			/* file or directory info (part 2) */
 	uint8_t name_length;
 	le16_t name_hash;
 	le16_t __unknown2;
-	le64_t real_size;				/* in bytes, equals to size */
+	le64_t valid_size;				/* in bytes, less or equal to size */
 	uint8_t __unknown3[4];
 	le32_t start_cluster;
-	le64_t size;					/* in bytes, equals to real_size */
+	le64_t size;					/* in bytes */
 }
 PACKED;
 STATIC_ASSERT(sizeof(struct exfat_entry_meta2) == 32);
diff --git a/exfat/libexfat/io.c b/exfat/libexfat/io.c
index 306c5dd06..3d7aaad2e 100644
--- a/exfat/libexfat/io.c
+++ b/exfat/libexfat/io.c
@@ -3,7 +3,7 @@
 	exFAT file system implementation library.
 
 	Free exFAT implementation.
-	Copyright (C) 2010-2013  Andrew Nayenko
+	Copyright (C) 2010-2015  Andrew Nayenko
 
 	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
@@ -24,13 +24,19 @@
 #include <inttypes.h>
 #include <sys/types.h>
 #include <sys/stat.h>
-#include <sys/mount.h>
 #include <fcntl.h>
 #include <unistd.h>
 #include <string.h>
-#ifdef __APPLE__
+#include <errno.h>
+#if defined(__APPLE__)
 #include <sys/disk.h>
+#elif defined(__OpenBSD__)
+#include <sys/param.h>
+#include <sys/disklabel.h>
+#include <sys/dkio.h>
+#include <sys/ioctl.h>
 #endif
+#include <sys/mount.h>
 #ifdef USE_UBLIO
 #include <sys/uio.h>
 #include <ublio.h>
@@ -40,9 +46,9 @@ struct exfat_dev
 {
 	int fd;
 	enum exfat_mode mode;
-	off64_t size; /* in bytes */
+	off_t size; /* in bytes */
 #ifdef USE_UBLIO
-	off64_t pos;
+	off_t pos;
 	ublio_filehandle_t ufh;
 #endif
 };
@@ -65,6 +71,7 @@ static int open_rw(const char* spec)
 	if (fd != -1 && ioctl(fd, BLKROGET, &ro) == 0 && ro)
 	{
 		close(fd);
+		errno = EROFS;
 		return -1;
 	}
 #endif
@@ -93,7 +100,8 @@ struct exfat_dev* exfat_open(const char* spec, enum exfat_mode mode)
 		if (dev->fd == -1)
 		{
 			free(dev);
-			exfat_error("failed to open `%s' in read-only mode", spec);
+			exfat_error("failed to open '%s' in read-only mode: %s", spec,
+					strerror(errno));
 			return NULL;
 		}
 		dev->mode = EXFAT_MODE_RO;
@@ -103,7 +111,8 @@ struct exfat_dev* exfat_open(const char* spec, enum exfat_mode mode)
 		if (dev->fd == -1)
 		{
 			free(dev);
-			exfat_error("failed to open `%s' in read-write mode", spec);
+			exfat_error("failed to open '%s' in read-write mode: %s", spec,
+					strerror(errno));
 			return NULL;
 		}
 		dev->mode = EXFAT_MODE_RW;
@@ -119,11 +128,11 @@ struct exfat_dev* exfat_open(const char* spec, enum exfat_mode mode)
 		if (dev->fd != -1)
 		{
 			dev->mode = EXFAT_MODE_RO;
-			exfat_warn("`%s' is write-protected, mounting read-only", spec);
+			exfat_warn("'%s' is write-protected, mounting read-only", spec);
 			break;
 		}
 		free(dev);
-		exfat_error("failed to open `%s'", spec);
+		exfat_error("failed to open '%s': %s", spec, strerror(errno));
 		return NULL;
 	}
 
@@ -131,7 +140,7 @@ struct exfat_dev* exfat_open(const char* spec, enum exfat_mode mode)
 	{
 		close(dev->fd);
 		free(dev);
-		exfat_error("failed to fstat `%s'", spec);
+		exfat_error("failed to fstat '%s'", spec);
 		return NULL;
 	}
 	if (!S_ISBLK(stbuf.st_mode) &&
@@ -140,11 +149,11 @@ struct exfat_dev* exfat_open(const char* spec, enum exfat_mode mode)
 	{
 		close(dev->fd);
 		free(dev);
-		exfat_error("`%s' is neither a device, nor a regular file", spec);
+		exfat_error("'%s' is neither a device, nor a regular file", spec);
 		return NULL;
 	}
 
-#ifdef __APPLE__
+#if defined(__APPLE__)
 	if (!S_ISREG(stbuf.st_mode))
 	{
 		uint32_t block_size = 0;
@@ -167,6 +176,32 @@ struct exfat_dev* exfat_open(const char* spec, enum exfat_mode mode)
 		dev->size = blocks * block_size;
 	}
 	else
+#elif defined(__OpenBSD__)
+	if (!S_ISREG(stbuf.st_mode))
+	{
+		struct disklabel lab;
+		struct partition* pp;
+		char* partition;
+
+		if (ioctl(dev->fd, DIOCGDINFO, &lab) == -1)
+		{
+			close(dev->fd);
+			free(dev);
+			exfat_error("failed to get disklabel");
+			return NULL;
+		}
+
+		/* Don't need to check that partition letter is valid as we won't get
+		   this far otherwise. */
+		partition = strchr(spec, '\0') - 1;
+		pp = &(lab.d_partitions[*partition - 'a']);
+		dev->size = DL_GETPSIZE(pp) * lab.d_secsize;
+
+		if (pp->p_fstype != FS_NTFS)
+			exfat_warn("partition type is not 0x07 (NTFS/exFAT); "
+					"you can fix this with fdisk(8)");
+	}
+	else
 #endif
 	{
 		/* works for Linux, FreeBSD, Solaris */
@@ -175,14 +210,14 @@ struct exfat_dev* exfat_open(const char* spec, enum exfat_mode mode)
 		{
 			close(dev->fd);
 			free(dev);
-			exfat_error("failed to get size of `%s'", spec);
+			exfat_error("failed to get size of '%s'", spec);
 			return NULL;
 		}
 		if (exfat_seek(dev, 0, SEEK_SET) == -1)
 		{
 			close(dev->fd);
 			free(dev);
-			exfat_error("failed to seek to the beginning of `%s'", spec);
+			exfat_error("failed to seek to the beginning of '%s'", spec);
 			return NULL;
 		}
 	}
@@ -210,32 +245,41 @@ struct exfat_dev* exfat_open(const char* spec, enum exfat_mode mode)
 
 int exfat_close(struct exfat_dev* dev)
 {
+	int rc = 0;
+
 #ifdef USE_UBLIO
 	if (ublio_close(dev->ufh) != 0)
+	{
 		exfat_error("failed to close ublio");
+		rc = -EIO;
+	}
 #endif
 	if (close(dev->fd) != 0)
 	{
-		free(dev);
-		exfat_error("failed to close device");
-		return 1;
+		exfat_error("failed to close device: %s", strerror(errno));
+		rc = -EIO;
 	}
 	free(dev);
-	return 0;
+	return rc;
 }
 
 int exfat_fsync(struct exfat_dev* dev)
 {
+	int rc = 0;
+
 #ifdef USE_UBLIO
 	if (ublio_fsync(dev->ufh) != 0)
-#else
-	if (fsync(dev->fd) != 0)
+	{
+		exfat_error("ublio fsync failed");
+		rc = -EIO;
+	}
 #endif
+	if (fsync(dev->fd) != 0)
 	{
-		exfat_error("fsync failed");
-		return 1;
+		exfat_error("fsync failed: %s", strerror(errno));
+		rc = -EIO;
 	}
-	return 0;
+	return rc;
 }
 
 enum exfat_mode exfat_get_mode(const struct exfat_dev* dev)
@@ -243,18 +287,18 @@ enum exfat_mode exfat_get_mode(const struct exfat_dev* dev)
 	return dev->mode;
 }
 
-off64_t exfat_get_size(const struct exfat_dev* dev)
+off_t exfat_get_size(const struct exfat_dev* dev)
 {
 	return dev->size;
 }
 
-off64_t exfat_seek(struct exfat_dev* dev, off64_t offset, int whence)
+off_t exfat_seek(struct exfat_dev* dev, off_t offset, int whence)
 {
 #ifdef USE_UBLIO
 	/* XXX SEEK_CUR will be handled incorrectly */
-	return dev->pos = lseek64(dev->fd, offset, whence);
+	return dev->pos = lseek(dev->fd, offset, whence);
 #else
-	return lseek64(dev->fd, offset, whence);
+	return lseek(dev->fd, offset, whence);
 #endif
 }
 
@@ -283,31 +327,31 @@ ssize_t exfat_write(struct exfat_dev* dev, const void* buffer, size_t size)
 }
 
 ssize_t exfat_pread(struct exfat_dev* dev, void* buffer, size_t size,
-		off64_t offset)
+		off_t offset)
 {
 #ifdef USE_UBLIO
 	return ublio_pread(dev->ufh, buffer, size, offset);
 #else
-	return pread64(dev->fd, buffer, size, offset);
+	return pread(dev->fd, buffer, size, offset);
 #endif
 }
 
 ssize_t exfat_pwrite(struct exfat_dev* dev, const void* buffer, size_t size,
-		off64_t offset)
+		off_t offset)
 {
 #ifdef USE_UBLIO
 	return ublio_pwrite(dev->ufh, buffer, size, offset);
 #else
-	return pwrite64(dev->fd, buffer, size, offset);
+	return pwrite(dev->fd, buffer, size, offset);
 #endif
 }
 
 ssize_t exfat_generic_pread(const struct exfat* ef, struct exfat_node* node,
-		void* buffer, size_t size, off64_t offset)
+		void* buffer, size_t size, off_t offset)
 {
 	cluster_t cluster;
 	char* bufp = buffer;
-	off64_t lsize, loffset, remainder;
+	off_t lsize, loffset, remainder;
 
 	if (offset >= node->size)
 		return 0;
@@ -348,11 +392,11 @@ ssize_t exfat_generic_pread(const struct exfat* ef, struct exfat_node* node,
 }
 
 ssize_t exfat_generic_pwrite(struct exfat* ef, struct exfat_node* node,
-		const void* buffer, size_t size, off64_t offset)
+		const void* buffer, size_t size, off_t offset)
 {
 	cluster_t cluster;
 	const char* bufp = buffer;
-	off64_t lsize, loffset, remainder;
+	off_t lsize, loffset, remainder;
 
  	if (offset > node->size)
  		if (exfat_truncate(ef, node, offset, true) != 0)
diff --git a/exfat/libexfat/log.c b/exfat/libexfat/log.c
index 7e541aafb..38c79d456 100644
--- a/exfat/libexfat/log.c
+++ b/exfat/libexfat/log.c
@@ -3,7 +3,7 @@
 	exFAT file system implementation library.
 
 	Free exFAT implementation.
-	Copyright (C) 2010-2013  Andrew Nayenko
+	Copyright (C) 2010-2015  Andrew Nayenko
 
 	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
@@ -47,7 +47,11 @@ void exfat_bug(const char* format, ...)
 		vsyslog(LOG_CRIT, format, aq);
 	va_end(aq);
 
+#if defined(__ANDROID__)
+    exit(-1);
+#else
 	abort();
+#endif
 }
 
 /*
diff --git a/exfat/libexfat/lookup.c b/exfat/libexfat/lookup.c
index 00cd5335e..d5bb3899b 100644
--- a/exfat/libexfat/lookup.c
+++ b/exfat/libexfat/lookup.c
@@ -3,7 +3,7 @@
 	exFAT file system implementation library.
 
 	Free exFAT implementation.
-	Copyright (C) 2010-2013  Andrew Nayenko
+	Copyright (C) 2010-2015  Andrew Nayenko
 
 	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
diff --git a/exfat/libexfat/mount.c b/exfat/libexfat/mount.c
index 928c561dc..0d6ce9ead 100644
--- a/exfat/libexfat/mount.c
+++ b/exfat/libexfat/mount.c
@@ -3,7 +3,7 @@
 	exFAT file system implementation library.
 
 	Free exFAT implementation.
-	Copyright (C) 2010-2013  Andrew Nayenko
+	Copyright (C) 2010-2015  Andrew Nayenko
 
 	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
@@ -24,22 +24,38 @@
 #include <string.h>
 #include <stdlib.h>
 #include <errno.h>
+#include <inttypes.h>
 #include <unistd.h>
 #include <sys/types.h>
 
 static uint64_t rootdir_size(const struct exfat* ef)
 {
-	uint64_t clusters = 0;
+	uint32_t clusters = 0;
+	uint32_t clusters_max = le32_to_cpu(ef->sb->cluster_count);
 	cluster_t rootdir_cluster = le32_to_cpu(ef->sb->rootdir_cluster);
 
-	while (!CLUSTER_INVALID(rootdir_cluster))
+	/* Iterate all clusters of the root directory to calculate its size.
+	   It can't be contiguous because there is no flag to indicate this. */
+	do
 	{
-		clusters++;
-		/* root directory cannot be contiguous because there is no flag
-		   to indicate this */
+		if (clusters == clusters_max) /* infinite loop detected */
+		{
+			exfat_error("root directory cannot occupy all %d clusters",
+					clusters);
+			return 0;
+		}
+		if (CLUSTER_INVALID(rootdir_cluster))
+		{
+			exfat_error("bad cluster %#x while reading root directory",
+					rootdir_cluster);
+			return 0;
+		}
 		rootdir_cluster = exfat_next_cluster(ef, ef->root, rootdir_cluster);
+		clusters++;
 	}
-	return clusters * CLUSTER_SIZE(*ef->sb);
+	while (rootdir_cluster != EXFAT_CLUSTER_END);
+
+	return (uint64_t) clusters * CLUSTER_SIZE(*ef->sb);
 }
 
 static const char* get_option(const char* options, const char* option_name)
@@ -77,13 +93,11 @@ static bool match_option(const char* options, const char* option_name)
 
 static void parse_options(struct exfat* ef, const char* options)
 {
-	int sys_umask = umask(0);
 	int opt_umask;
 
-	umask(sys_umask); /* restore umask */
-	opt_umask = get_int_option(options, "umask", 8, sys_umask);
-	ef->dmask = get_int_option(options, "dmask", 8, opt_umask) & 0777;
-	ef->fmask = get_int_option(options, "fmask", 8, opt_umask) & 0777;
+	opt_umask = get_int_option(options, "umask", 8, 0);
+	ef->dmask = get_int_option(options, "dmask", 8, opt_umask);
+	ef->fmask = get_int_option(options, "fmask", 8, opt_umask);
 
 	ef->uid = get_int_option(options, "uid", 10, geteuid());
 	ef->gid = get_int_option(options, "gid", 10, getegid());
@@ -91,8 +105,8 @@ static void parse_options(struct exfat* ef, const char* options)
 	ef->noatime = match_option(options, "noatime");
 }
 
-static int verify_vbr_checksum(struct exfat_dev* dev, void* sector,
-		off64_t sector_size)
+static bool verify_vbr_checksum(struct exfat_dev* dev, void* sector,
+		off_t sector_size)
 {
 	uint32_t vbr_checksum;
 	int i;
@@ -100,7 +114,7 @@ static int verify_vbr_checksum(struct exfat_dev* dev, void* sector,
 	if (exfat_pread(dev, sector, sector_size, 0) < 0)
 	{
 		exfat_error("failed to read boot sector");
-		return 1;
+		return false;
 	}
 	vbr_checksum = exfat_vbr_start_checksum(sector, sector_size);
 	for (i = 1; i < 11; i++)
@@ -108,7 +122,7 @@ static int verify_vbr_checksum(struct exfat_dev* dev, void* sector,
 		if (exfat_pread(dev, sector, sector_size, i * sector_size) < 0)
 		{
 			exfat_error("failed to read VBR sector");
-			return 1;
+			return false;
 		}
 		vbr_checksum = exfat_vbr_add_checksum(sector, sector_size,
 				vbr_checksum);
@@ -116,16 +130,16 @@ static int verify_vbr_checksum(struct exfat_dev* dev, void* sector,
 	if (exfat_pread(dev, sector, sector_size, i * sector_size) < 0)
 	{
 		exfat_error("failed to read VBR checksum sector");
-		return 1;
+		return false;
 	}
 	for (i = 0; i < sector_size / sizeof(vbr_checksum); i++)
 		if (le32_to_cpu(((const le32_t*) sector)[i]) != vbr_checksum)
 		{
 			exfat_error("invalid VBR checksum 0x%x (expected 0x%x)",
 					le32_to_cpu(((const le32_t*) sector)[i]), vbr_checksum);
-			return 1;
+			return false;
 		}
-	return 0;
+	return true;
 }
 
 static int commit_super_block(const struct exfat* ef)
@@ -201,31 +215,23 @@ int exfat_mount(struct exfat* ef, const char* spec, const char* options)
 		exfat_error("exFAT file system is not found");
 		return -EIO;
 	}
-	if (ef->sb->version.major != 1 || ef->sb->version.minor != 0)
+	/* sector cannot be smaller than 512 bytes */
+	if (ef->sb->sector_bits < 9)
 	{
 		exfat_close(ef->dev);
-		exfat_error("unsupported exFAT version: %hhu.%hhu",
-				ef->sb->version.major, ef->sb->version.minor);
+		exfat_error("too small sector size: 2^%hhd", ef->sb->sector_bits);
 		free(ef->sb);
 		return -EIO;
 	}
-	if (ef->sb->fat_count != 1)
-	{
-		exfat_close(ef->dev);
-		free(ef->sb);
-		exfat_error("unsupported FAT count: %hhu", ef->sb->fat_count);
-		return -EIO;
-	}
 	/* officially exFAT supports cluster size up to 32 MB */
 	if ((int) ef->sb->sector_bits + (int) ef->sb->spc_bits > 25)
 	{
 		exfat_close(ef->dev);
+		exfat_error("too big cluster size: 2^(%hhd+%hhd)",
+				ef->sb->sector_bits, ef->sb->spc_bits);
 		free(ef->sb);
-		exfat_error("too big cluster size: 2^%d",
-				(int) ef->sb->sector_bits + (int) ef->sb->spc_bits);
 		return -EIO;
 	}
-
 	ef->zero_cluster = malloc(CLUSTER_SIZE(*ef->sb));
 	if (ef->zero_cluster == NULL)
 	{
@@ -235,8 +241,7 @@ int exfat_mount(struct exfat* ef, const char* spec, const char* options)
 		return -ENOMEM;
 	}
 	/* use zero_cluster as a temporary buffer for VBR checksum verification */
-	if (verify_vbr_checksum(ef->dev, ef->zero_cluster,
-			SECTOR_SIZE(*ef->sb)) != 0)
+	if (!verify_vbr_checksum(ef->dev, ef->zero_cluster, SECTOR_SIZE(*ef->sb)))
 	{
 		free(ef->zero_cluster);
 		exfat_close(ef->dev);
@@ -244,6 +249,33 @@ int exfat_mount(struct exfat* ef, const char* spec, const char* options)
 		return -EIO;
 	}
 	memset(ef->zero_cluster, 0, CLUSTER_SIZE(*ef->sb));
+	if (ef->sb->version.major != 1 || ef->sb->version.minor != 0)
+	{
+		free(ef->zero_cluster);
+		exfat_close(ef->dev);
+		exfat_error("unsupported exFAT version: %hhu.%hhu",
+				ef->sb->version.major, ef->sb->version.minor);
+		free(ef->sb);
+		return -EIO;
+	}
+	if (ef->sb->fat_count != 1)
+	{
+		free(ef->zero_cluster);
+		exfat_close(ef->dev);
+		exfat_error("unsupported FAT count: %hhu", ef->sb->fat_count);
+		free(ef->sb);
+		return -EIO;
+	}
+	if (le64_to_cpu(ef->sb->sector_count) * SECTOR_SIZE(*ef->sb) >
+			exfat_get_size(ef->dev))
+	{
+		/* this can cause I/O errors later but we don't fail mounting to let
+		   user rescue data */
+		exfat_warn("file system is larger than underlying device: "
+				"%"PRIu64" > %"PRIu64,
+				le64_to_cpu(ef->sb->sector_count) * SECTOR_SIZE(*ef->sb),
+				exfat_get_size(ef->dev));
+	}
 
 	ef->root = malloc(sizeof(struct exfat_node));
 	if (ef->root == NULL)
@@ -260,6 +292,14 @@ int exfat_mount(struct exfat* ef, const char* spec, const char* options)
 	ef->root->fptr_cluster = ef->root->start_cluster;
 	ef->root->name[0] = cpu_to_le16('\0');
 	ef->root->size = rootdir_size(ef);
+	if (ef->root->size == 0)
+	{
+		free(ef->root);
+		free(ef->zero_cluster);
+		exfat_close(ef->dev);
+		free(ef->sb);
+		return -EIO;
+	}
 	/* exFAT does not have time attributes for the root directory */
 	ef->root->mtime = 0;
 	ef->root->atime = 0;
@@ -314,11 +354,13 @@ static void finalize_super_block(struct exfat* ef)
 		ef->sb->allocated_percent = ((total - free) * 100 + total / 2) / total;
 	}
 
-	commit_super_block(ef);
+	commit_super_block(ef);	/* ignore return code */
 }
 
 void exfat_unmount(struct exfat* ef)
 {
+	exfat_flush_nodes(ef);	/* ignore return code */
+	exfat_flush(ef);		/* ignore return code */
 	exfat_put_node(ef, ef->root);
 	exfat_reset_cache(ef);
 	free(ef->root);
diff --git a/exfat/libexfat/node.c b/exfat/libexfat/node.c
index 56205fced..d05f20dc1 100644
--- a/exfat/libexfat/node.c
+++ b/exfat/libexfat/node.c
@@ -3,7 +3,7 @@
 	exFAT file system implementation library.
 
 	Free exFAT implementation.
-	Copyright (C) 2010-2013  Andrew Nayenko
+	Copyright (C) 2010-2015  Andrew Nayenko
 
 	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
@@ -29,7 +29,7 @@
 struct iterator
 {
 	cluster_t cluster;
-	off64_t offset;
+	off_t offset;
 	int contiguous;
 	char* chunk;
 };
@@ -44,34 +44,50 @@ struct exfat_node* exfat_get_node(struct exfat_node* node)
 
 void exfat_put_node(struct exfat* ef, struct exfat_node* node)
 {
-	if (--node->references < 0)
+	char buffer[UTF8_BYTES(EXFAT_NAME_MAX) + 1];
+
+	--node->references;
+	if (node->references < 0)
 	{
-		char buffer[UTF8_BYTES(EXFAT_NAME_MAX) + 1];
 		exfat_get_name(node, buffer, sizeof(buffer) - 1);
-		exfat_bug("reference counter of `%s' is below zero", buffer);
+		exfat_bug("reference counter of '%s' is below zero", buffer);
 	}
-
-	if (node->references == 0)
+	else if (node->references == 0 && node != ef->root)
 	{
-		/* FIXME handle I/O error */
-		if (exfat_flush_node(ef, node) != 0)
-			exfat_bug("node flush failed");
-		if (node->flags & EXFAT_ATTRIB_UNLINKED)
+		if (node->flags & EXFAT_ATTRIB_DIRTY)
 		{
-			/* free all clusters and node structure itself */
-			exfat_truncate(ef, node, 0, true);
-			free(node);
+			exfat_get_name(node, buffer, sizeof(buffer) - 1);
+			exfat_warn("dirty node '%s' with zero references", buffer);
 		}
-		/* FIXME handle I/O error */
-		if (exfat_flush(ef) != 0)
-			exfat_bug("flush failed");
 	}
 }
 
 /**
+ * This function must be called on rmdir and unlink (after the last
+ * exfat_put_node()) to free clusters.
+ */
+int exfat_cleanup_node(struct exfat* ef, struct exfat_node* node)
+{
+	int rc = 0;
+
+	if (node->references != 0)
+		exfat_bug("unable to cleanup a node with %d references",
+				node->references);
+
+	if (node->flags & EXFAT_ATTRIB_UNLINKED)
+	{
+		/* free all clusters and node structure itself */
+		rc = exfat_truncate(ef, node, 0, true);
+		/* free the node even in case of error or its memory will be lost */
+		free(node);
+	}
+	return rc;
+}
+
+/**
  * Cluster + offset from the beginning of the directory to absolute offset.
  */
-static off64_t co2o(struct exfat* ef, cluster_t cluster, off64_t offset)
+static off_t co2o(struct exfat* ef, cluster_t cluster, off_t offset)
 {
 	return exfat_c2o(ef, cluster) + offset % CLUSTER_SIZE(*ef->sb);
 }
@@ -108,7 +124,7 @@ static void closedir(struct iterator* it)
 	it->chunk = NULL;
 }
 
-static int fetch_next_entry(struct exfat* ef, const struct exfat_node* parent,
+static bool fetch_next_entry(struct exfat* ef, const struct exfat_node* parent,
 		struct iterator* it)
 {
 	/* move iterator to the next entry in the directory */
@@ -119,23 +135,23 @@ static int fetch_next_entry(struct exfat* ef, const struct exfat_node* parent,
 		/* reached the end of directory; the caller should check this
 		   condition too */
 		if (it->offset >= parent->size)
-			return 0;
+			return true;
 		it->cluster = exfat_next_cluster(ef, parent, it->cluster);
 		if (CLUSTER_INVALID(it->cluster))
 		{
 			exfat_error("invalid cluster 0x%x while reading directory",
 					it->cluster);
-			return 1;
+			return false;
 		}
 		if (exfat_pread(ef->dev, it->chunk, CLUSTER_SIZE(*ef->sb),
 				exfat_c2o(ef, it->cluster)) < 0)
 		{
 			exfat_error("failed to read the next directory cluster %#x",
 					it->cluster);
-			return 1;
+			return false;
 		}
 	}
-	return 0;
+	return true;
 }
 
 static struct exfat_node* allocate_node(void)
@@ -177,6 +193,40 @@ static const struct exfat_entry* get_entry_ptr(const struct exfat* ef,
 			(it->chunk + it->offset % CLUSTER_SIZE(*ef->sb));
 }
 
+static bool check_node(const struct exfat_node* node, uint16_t actual_checksum,
+		uint16_t reference_checksum, uint64_t valid_size)
+{
+	char buffer[UTF8_BYTES(EXFAT_NAME_MAX) + 1];
+
+	/*
+	   Validate checksum first. If it's invalid all other fields probably
+	   contain just garbage.
+	*/
+	if (actual_checksum != reference_checksum)
+	{
+		exfat_get_name(node, buffer, sizeof(buffer) - 1);
+		exfat_error("'%s' has invalid checksum (%#hx != %#hx)", buffer,
+				actual_checksum, reference_checksum);
+		return false;
+	}
+
+	/*
+	   exFAT does not support sparse files but allows files with uninitialized
+	   clusters. For such files valid_size means initialized data size and
+	   cannot be greater than file size. See SetFileValidData() function
+	   description in MSDN.
+	*/
+	if (valid_size > node->size)
+	{
+		exfat_get_name(node, buffer, sizeof(buffer) - 1);
+		exfat_error("'%s' has valid size (%"PRIu64") greater than size "
+				"(%"PRIu64")", buffer, valid_size, node->size);
+		return false;
+	}
+
+	return true;
+}
+
 /*
  * Reads one entry in directory at position pointed by iterator and fills
  * node structure.
@@ -196,7 +246,7 @@ static int readdir(struct exfat* ef, const struct exfat_node* parent,
 	le16_t* namep = NULL;
 	uint16_t reference_checksum = 0;
 	uint16_t actual_checksum = 0;
-	uint64_t real_size = 0;
+	uint64_t valid_size = 0;
 
 	*node = NULL;
 
@@ -267,7 +317,7 @@ static int readdir(struct exfat* ef, const struct exfat_node* parent,
 			}
 			init_node_meta2(*node, meta2);
 			actual_checksum = exfat_add_checksum(entry, actual_checksum);
-			real_size = le64_to_cpu(meta2->real_size);
+			valid_size = le64_to_cpu(meta2->valid_size);
 			/* empty files must be marked as non-contiguous */
 			if ((*node)->size == 0 && (meta2->flags & EXFAT_FLAG_CONTIGUOUS))
 			{
@@ -302,37 +352,10 @@ static int readdir(struct exfat* ef, const struct exfat_node* parent,
 			namep += EXFAT_ENAME_MAX;
 			if (--continuations == 0)
 			{
-				/*
-				   There are two fields that contain file size. Maybe they
-				   plan to add compression support in the future and one of
-				   those fields is visible (uncompressed) size and the other
-				   is real (compressed) size. Anyway, currently it looks like
-				   exFAT does not support compression and both fields must be
-				   equal.
-
-				   There is an exception though: pagefile.sys (its real_size
-				   is always 0).
-				*/
-				if (real_size != (*node)->size)
-				{
-					char buffer[UTF8_BYTES(EXFAT_NAME_MAX) + 1];
-
-					exfat_get_name(*node, buffer, sizeof(buffer) - 1);
-					exfat_error("`%s' real size does not equal to size "
-							"(%"PRIu64" != %"PRIu64")", buffer,
-							real_size, (*node)->size);
+				if (!check_node(*node, actual_checksum, reference_checksum,
+						valid_size))
 					goto error;
-				}
-				if (actual_checksum != reference_checksum)
-				{
-					char buffer[UTF8_BYTES(EXFAT_NAME_MAX) + 1];
-
-					exfat_get_name(*node, buffer, sizeof(buffer) - 1);
-					exfat_error("`%s' has invalid checksum (0x%hx != 0x%hx)",
-							buffer, actual_checksum, reference_checksum);
-					goto error;
-				}
-				if (fetch_next_entry(ef, parent, it) != 0)
+				if (!fetch_next_entry(ef, parent, it))
 					goto error;
 				return 0; /* entry completed */
 			}
@@ -431,15 +454,25 @@ static int readdir(struct exfat* ef, const struct exfat_node* parent,
 			break;
 
 		default:
-			if (entry->type & EXFAT_ENTRY_VALID)
+			if (!(entry->type & EXFAT_ENTRY_VALID))
+				break; /* deleted entry, ignore it */
+			if (!(entry->type & EXFAT_ENTRY_OPTIONAL))
+			{
+				exfat_error("unknown entry type %#hhx", entry->type);
+				goto error;
+			}
+			/* optional entry, warn and skip */
+			exfat_warn("unknown entry type %#hhx", entry->type);
+			if (continuations == 0)
 			{
-				exfat_error("unknown entry type 0x%hhx", entry->type);
+				exfat_error("unexpected continuation");
 				goto error;
 			}
+			--continuations;
 			break;
 		}
 
-		if (fetch_next_entry(ef, parent, it) != 0)
+		if (!fetch_next_entry(ef, parent, it))
 			goto error;
 	}
 	/* we never reach here */
@@ -520,6 +553,8 @@ static void tree_detach(struct exfat_node* node)
 
 static void reset_cache(struct exfat* ef, struct exfat_node* node)
 {
+	char buffer[UTF8_BYTES(EXFAT_NAME_MAX) + 1];
+
 	while (node->child)
 	{
 		struct exfat_node* p = node->child;
@@ -530,11 +565,15 @@ static void reset_cache(struct exfat* ef, struct exfat_node* node)
 	node->flags &= ~EXFAT_ATTRIB_CACHED;
 	if (node->references != 0)
 	{
-		char buffer[UTF8_BYTES(EXFAT_NAME_MAX) + 1];
 		exfat_get_name(node, buffer, sizeof(buffer) - 1);
-		exfat_warn("non-zero reference counter (%d) for `%s'",
+		exfat_warn("non-zero reference counter (%d) for '%s'",
 				node->references, buffer);
 	}
+	if (node != ef->root && (node->flags & EXFAT_ATTRIB_DIRTY))
+	{
+		exfat_get_name(node, buffer, sizeof(buffer) - 1);
+		exfat_bug("node '%s' is dirty", buffer);
+	}
 	while (node->references)
 		exfat_put_node(ef, node);
 }
@@ -544,20 +583,28 @@ void exfat_reset_cache(struct exfat* ef)
 	reset_cache(ef, ef->root);
 }
 
-static void next_entry(struct exfat* ef, const struct exfat_node* parent,
-		cluster_t* cluster, off64_t* offset)
+static bool next_entry(struct exfat* ef, const struct exfat_node* parent,
+		cluster_t* cluster, off_t* offset)
 {
 	*offset += sizeof(struct exfat_entry);
 	if (*offset % CLUSTER_SIZE(*ef->sb) == 0)
-		/* next cluster cannot be invalid */
+	{
 		*cluster = exfat_next_cluster(ef, parent, *cluster);
+		if (CLUSTER_INVALID(*cluster))
+		{
+			exfat_error("invalid cluster %#x while getting next entry",
+					*cluster);
+			return false;
+		}
+	}
+	return true;
 }
 
 int exfat_flush_node(struct exfat* ef, struct exfat_node* node)
 {
 	cluster_t cluster;
-	off64_t offset;
-	off64_t meta1_offset, meta2_offset;
+	off_t offset;
+	off_t meta1_offset, meta2_offset;
 	struct exfat_entry_meta1 meta1;
 	struct exfat_entry_meta2 meta2;
 
@@ -573,7 +620,8 @@ int exfat_flush_node(struct exfat* ef, struct exfat_node* node)
 	cluster = node->entry_cluster;
 	offset = node->entry_offset;
 	meta1_offset = co2o(ef, cluster, offset);
-	next_entry(ef, node->parent, &cluster, &offset);
+	if (!next_entry(ef, node->parent, &cluster, &offset))
+		return -EIO;
 	meta2_offset = co2o(ef, cluster, offset);
 
 	if (exfat_pread(ef->dev, &meta1, sizeof(meta1), meta1_offset) < 0)
@@ -594,7 +642,7 @@ int exfat_flush_node(struct exfat* ef, struct exfat_node* node)
 	}
 	if (meta2.type != EXFAT_ENTRY_FILE_INFO)
 		exfat_bug("invalid type of meta2: 0x%hhx", meta2.type);
-	meta2.size = meta2.real_size = cpu_to_le64(node->size);
+	meta2.size = meta2.valid_size = cpu_to_le64(node->size);
 	meta2.start_cluster = cpu_to_le32(node->start_cluster);
 	meta2.flags = EXFAT_FLAG_ALWAYS1;
 	/* empty files must not be marked as contiguous */
@@ -616,13 +664,13 @@ int exfat_flush_node(struct exfat* ef, struct exfat_node* node)
 	}
 
 	node->flags &= ~EXFAT_ATTRIB_DIRTY;
-	return 0;
+	return exfat_flush(ef);
 }
 
 static bool erase_entry(struct exfat* ef, struct exfat_node* node)
 {
 	cluster_t cluster = node->entry_cluster;
-	off64_t offset = node->entry_offset;
+	off_t offset = node->entry_offset;
 	int name_entries = DIV_ROUND_UP(utf16_length(node->name), EXFAT_ENAME_MAX);
 	uint8_t entry_type;
 
@@ -633,7 +681,8 @@ static bool erase_entry(struct exfat* ef, struct exfat_node* node)
 		return false;
 	}
 
-	next_entry(ef, node->parent, &cluster, &offset);
+	if (!next_entry(ef, node->parent, &cluster, &offset))
+		return false;
 	entry_type = EXFAT_ENTRY_FILE_INFO & ~EXFAT_ENTRY_VALID;
 	if (exfat_pwrite(ef->dev, &entry_type, 1, co2o(ef, cluster, offset)) < 0)
 	{
@@ -643,7 +692,8 @@ static bool erase_entry(struct exfat* ef, struct exfat_node* node)
 
 	while (name_entries--)
 	{
-		next_entry(ef, node->parent, &cluster, &offset);
+		if (!next_entry(ef, node->parent, &cluster, &offset))
+			return false;
 		entry_type = EXFAT_ENTRY_FILE_NAME & ~EXFAT_ENTRY_VALID;
 		if (exfat_pwrite(ef->dev, &entry_type, 1,
 				co2o(ef, cluster, offset)) < 0)
@@ -656,13 +706,12 @@ static bool erase_entry(struct exfat* ef, struct exfat_node* node)
 }
 
 static int shrink_directory(struct exfat* ef, struct exfat_node* dir,
-		off64_t deleted_offset)
+		off_t deleted_offset)
 {
 	const struct exfat_node* node;
 	const struct exfat_node* last_node;
 	uint64_t entries = 0;
 	uint64_t new_size;
-	int rc;
 
 	if (!(dir->flags & EXFAT_ATTRIB_DIR))
 		exfat_bug("attempted to shrink a file");
@@ -698,16 +747,13 @@ static int shrink_directory(struct exfat* ef, struct exfat_node* dir,
 		new_size = CLUSTER_SIZE(*ef->sb);
 	if (new_size == dir->size)
 		return 0;
-	rc = exfat_truncate(ef, dir, new_size, true);
-	if (rc != 0)
-		return rc;
-	return 0;
+	return exfat_truncate(ef, dir, new_size, true);
 }
 
 static int delete(struct exfat* ef, struct exfat_node* node)
 {
 	struct exfat_node* parent = node->parent;
-	off64_t deleted_offset = node->entry_offset;
+	off_t deleted_offset = node->entry_offset;
 	int rc;
 
 	exfat_get_node(parent);
@@ -719,9 +765,15 @@ static int delete(struct exfat* ef, struct exfat_node* node)
 	exfat_update_mtime(parent);
 	tree_detach(node);
 	rc = shrink_directory(ef, parent, deleted_offset);
-	exfat_put_node(ef, parent);
-	/* file clusters will be freed when node reference counter becomes 0 */
 	node->flags |= EXFAT_ATTRIB_UNLINKED;
+	if (rc != 0)
+	{
+		exfat_flush_node(ef, parent);
+		exfat_put_node(ef, parent);
+		return rc;
+	}
+	rc = exfat_flush_node(ef, parent);
+	exfat_put_node(ef, parent);
 	return rc;
 }
 
@@ -734,10 +786,14 @@ int exfat_unlink(struct exfat* ef, struct exfat_node* node)
 
 int exfat_rmdir(struct exfat* ef, struct exfat_node* node)
 {
+	int rc;
+
 	if (!(node->flags & EXFAT_ATTRIB_DIR))
 		return -ENOTDIR;
 	/* check that directory is empty */
-	exfat_cache_directory(ef, node);
+	rc = exfat_cache_directory(ef, node);
+	if (rc != 0)
+		return rc;
 	if (node->child)
 		return -ENOTEMPTY;
 	return delete(ef, node);
@@ -752,7 +808,7 @@ static int grow_directory(struct exfat* ef, struct exfat_node* dir,
 }
 
 static int find_slot(struct exfat* ef, struct exfat_node* dir,
-		cluster_t* cluster, off64_t* offset, int subentries)
+		cluster_t* cluster, off_t* offset, int subentries)
 {
 	struct iterator it;
 	int rc;
@@ -786,7 +842,7 @@ static int find_slot(struct exfat* ef, struct exfat_node* dir,
 				return rc;
 			}
 		}
-		if (fetch_next_entry(ef, dir, &it) != 0)
+		if (!fetch_next_entry(ef, dir, &it))
 		{
 			closedir(&it);
 			return -EIO;
@@ -797,7 +853,7 @@ static int find_slot(struct exfat* ef, struct exfat_node* dir,
 }
 
 static int write_entry(struct exfat* ef, struct exfat_node* dir,
-		const le16_t* name, cluster_t cluster, off64_t offset, uint16_t attrib)
+		const le16_t* name, cluster_t cluster, off_t offset, uint16_t attrib)
 {
 	struct exfat_node* node;
 	struct exfat_entry_meta1 meta1;
@@ -838,7 +894,8 @@ static int write_entry(struct exfat* ef, struct exfat_node* dir,
 		exfat_error("failed to write meta1 entry");
 		return -EIO;
 	}
-	next_entry(ef, dir, &cluster, &offset);
+	if (!next_entry(ef, dir, &cluster, &offset))
+		return -EIO;
 	if (exfat_pwrite(ef->dev, &meta2, sizeof(meta2),
 			co2o(ef, cluster, offset)) < 0)
 	{
@@ -851,7 +908,8 @@ static int write_entry(struct exfat* ef, struct exfat_node* dir,
 		memcpy(name_entry.name, node->name + i * EXFAT_ENAME_MAX,
 				MIN(EXFAT_ENAME_MAX, EXFAT_NAME_MAX - i * EXFAT_ENAME_MAX) *
 				sizeof(le16_t));
-		next_entry(ef, dir, &cluster, &offset);
+		if (!next_entry(ef, dir, &cluster, &offset))
+			return -EIO;
 		if (exfat_pwrite(ef->dev, &name_entry, sizeof(name_entry),
 				co2o(ef, cluster, offset)) < 0)
 		{
@@ -873,7 +931,7 @@ static int create(struct exfat* ef, const char* path, uint16_t attrib)
 	struct exfat_node* dir;
 	struct exfat_node* existing;
 	cluster_t cluster = EXFAT_CLUSTER_BAD;
-	off64_t offset = -1;
+	off_t offset = -1;
 	le16_t name[EXFAT_NAME_MAX + 1];
 	int rc;
 
@@ -895,6 +953,12 @@ static int create(struct exfat* ef, const char* path, uint16_t attrib)
 		return rc;
 	}
 	rc = write_entry(ef, dir, name, cluster, offset, attrib);
+	if (rc != 0)
+	{
+		exfat_put_node(ef, dir);
+		return rc;
+	}
+	rc = exfat_flush_node(ef, dir);
 	exfat_put_node(ef, dir);
 	return rc;
 }
@@ -909,7 +973,7 @@ int exfat_mkdir(struct exfat* ef, const char* path)
 	int rc;
 	struct exfat_node* node;
 
-	rc = create(ef, path, EXFAT_ATTRIB_ARCH | EXFAT_ATTRIB_DIR);
+	rc = create(ef, path, EXFAT_ATTRIB_DIR);
 	if (rc != 0)
 		return rc;
 	rc = exfat_lookup(ef, &node, path);
@@ -923,18 +987,25 @@ int exfat_mkdir(struct exfat* ef, const char* path)
 		exfat_put_node(ef, node);
 		return rc;
 	}
+	rc = exfat_flush_node(ef, node);
+	if (rc != 0)
+	{
+		delete(ef, node);
+		exfat_put_node(ef, node);
+		return rc;
+	}
 	exfat_put_node(ef, node);
 	return 0;
 }
 
 static int rename_entry(struct exfat* ef, struct exfat_node* dir,
 		struct exfat_node* node, const le16_t* name, cluster_t new_cluster,
-		off64_t new_offset)
+		off_t new_offset)
 {
 	struct exfat_entry_meta1 meta1;
 	struct exfat_entry_meta2 meta2;
 	cluster_t old_cluster = node->entry_cluster;
-	off64_t old_offset = node->entry_offset;
+	off_t old_offset = node->entry_offset;
 	const size_t name_length = utf16_length(name);
 	const int name_entries = DIV_ROUND_UP(name_length, EXFAT_ENAME_MAX);
 	int i;
@@ -945,7 +1016,8 @@ static int rename_entry(struct exfat* ef, struct exfat_node* dir,
 		exfat_error("failed to read meta1 entry on rename");
 		return -EIO;
 	}
-	next_entry(ef, node->parent, &old_cluster, &old_offset);
+	if (!next_entry(ef, node->parent, &old_cluster, &old_offset))
+		return -EIO;
 	if (exfat_pread(ef->dev, &meta2, sizeof(meta2),
 			co2o(ef, old_cluster, old_offset)) < 0)
 	{
@@ -969,7 +1041,8 @@ static int rename_entry(struct exfat* ef, struct exfat_node* dir,
 		exfat_error("failed to write meta1 entry on rename");
 		return -EIO;
 	}
-	next_entry(ef, dir, &new_cluster, &new_offset);
+	if (!next_entry(ef, dir, &new_cluster, &new_offset))
+		return -EIO;
 	if (exfat_pwrite(ef->dev, &meta2, sizeof(meta2),
 			co2o(ef, new_cluster, new_offset)) < 0)
 	{
@@ -982,7 +1055,8 @@ static int rename_entry(struct exfat* ef, struct exfat_node* dir,
 		struct exfat_entry_name name_entry = {EXFAT_ENTRY_FILE_NAME, 0};
 		memcpy(name_entry.name, name + i * EXFAT_ENAME_MAX,
 				EXFAT_ENAME_MAX * sizeof(le16_t));
-		next_entry(ef, dir, &new_cluster, &new_offset);
+		if (!next_entry(ef, dir, &new_cluster, &new_offset))
+			return -EIO;
 		if (exfat_pwrite(ef->dev, &name_entry, sizeof(name_entry),
 				co2o(ef, new_cluster, new_offset)) < 0)
 		{
@@ -1003,7 +1077,7 @@ int exfat_rename(struct exfat* ef, const char* old_path, const char* new_path)
 	struct exfat_node* existing;
 	struct exfat_node* dir;
 	cluster_t cluster = EXFAT_CLUSTER_BAD;
-	off64_t offset = -1;
+	off_t offset = -1;
 	le16_t name[EXFAT_NAME_MAX + 1];
 	int rc;
 
@@ -1076,7 +1150,7 @@ int exfat_rename(struct exfat* ef, const char* old_path, const char* new_path)
 	rc = rename_entry(ef, dir, node, name, cluster, offset);
 	exfat_put_node(ef, dir);
 	exfat_put_node(ef, node);
-	return 0;
+	return rc;
 }
 
 void exfat_utimes(struct exfat_node* node, const struct timespec tv[2])
@@ -1103,7 +1177,7 @@ const char* exfat_get_label(struct exfat* ef)
 	return ef->label;
 }
 
-static int find_label(struct exfat* ef, cluster_t* cluster, off64_t* offset)
+static int find_label(struct exfat* ef, cluster_t* cluster, off_t* offset)
 {
 	struct iterator it;
 	int rc;
@@ -1128,7 +1202,7 @@ static int find_label(struct exfat* ef, cluster_t* cluster, off64_t* offset)
 			return 0;
 		}
 
-		if (fetch_next_entry(ef, ef->root, &it) != 0)
+		if (!fetch_next_entry(ef, ef->root, &it))
 		{
 			closedir(&it);
 			return -EIO;
@@ -1141,7 +1215,7 @@ int exfat_set_label(struct exfat* ef, const char* label)
 	le16_t label_utf16[EXFAT_ENAME_MAX + 1];
 	int rc;
 	cluster_t cluster;
-	off64_t offset;
+	off_t offset;
 	struct exfat_entry_label entry;
 
 	memset(label_utf16, 0, sizeof(label_utf16));
diff --git a/exfat/libexfat/platform.h b/exfat/libexfat/platform.h
index 320f757e8..d2ad6d134 100644
--- a/exfat/libexfat/platform.h
+++ b/exfat/libexfat/platform.h
@@ -3,11 +3,12 @@
 	OS-specific code (libc-specific in fact). Note that systems with the
 	same kernel can use different libc implementations.
 
-	Copyright (C) 2010-2013  Andrew Nayenko
+	Free exFAT implementation.
+	Copyright (C) 2010-2015  Andrew Nayenko
 
-	This program is free software: you can redistribute it and/or modify
+	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
+	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,
@@ -15,62 +16,45 @@
 	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/>.
+	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.
 */
 
 #ifndef PLATFORM_H_INCLUDED
 #define PLATFORM_H_INCLUDED
 
-#if defined(__GLIBC__)
+#if defined(__linux__) || defined(__GLIBC__) || defined(__GNU__)
 
 #include <endian.h>
 #include <byteswap.h>
+#define exfat_bswap16(x) bswap_16(x)
+#define exfat_bswap32(x) bswap_32(x)
+#define exfat_bswap64(x) bswap_64(x)
+#define EXFAT_BYTE_ORDER __BYTE_ORDER
+#define EXFAT_LITTLE_ENDIAN __LITTLE_ENDIAN
+#define EXFAT_BIG_ENDIAN __BIG_ENDIAN
 
 #elif defined(__APPLE__)
 
 #include <machine/endian.h>
 #include <libkern/OSByteOrder.h>
-#define bswap_16(x) OSSwapInt16(x)
-#define bswap_32(x) OSSwapInt32(x)
-#define bswap_64(x) OSSwapInt64(x)
-#define __BYTE_ORDER BYTE_ORDER
-#define __LITTLE_ENDIAN LITTLE_ENDIAN
-#define __BIG_ENDIAN BIG_ENDIAN
+#define exfat_bswap16(x) OSSwapInt16(x)
+#define exfat_bswap32(x) OSSwapInt32(x)
+#define exfat_bswap64(x) OSSwapInt64(x)
+#define EXFAT_BYTE_ORDER BYTE_ORDER
+#define EXFAT_LITTLE_ENDIAN LITTLE_ENDIAN
+#define EXFAT_BIG_ENDIAN BIG_ENDIAN
 
-#elif defined(__FreeBSD__) || defined(__DragonFlyBSD__) || defined(__NetBSD__)
+#elif defined(__ANDROID__) || defined(__FreeBSD__) || defined(__DragonFlyBSD__) || defined(__NetBSD__) || defined(__OpenBSD__)
 
 #include <sys/endian.h>
-#define bswap_16(x) bswap16(x)
-#define bswap_32(x) bswap32(x)
-#define bswap_64(x) bswap64(x)
-#define __BYTE_ORDER _BYTE_ORDER
-#define __LITTLE_ENDIAN _LITTLE_ENDIAN
-#define __BIG_ENDIAN _BIG_ENDIAN
-
-#elif defined(__OpenBSD__)
-
-#include <machine/endian.h>
-#define bswap_16(x) swap16(x)
-#define bswap_32(x) swap32(x)
-#define bswap_64(x) swap64(x)
-#define __BYTE_ORDER _BYTE_ORDER
-#define __LITTLE_ENDIAN _LITTLE_ENDIAN
-#define __BIG_ENDIAN _BIG_ENDIAN
-
-#elif defined(__sun)
-
-#include <sys/byteorder.h>
-#define bswap_16(x) BSWAP_16(x)
-#define bswap_32(x) BSWAP_32(x)
-#define bswap_64(x) BSWAP_64(x)
-#define __LITTLE_ENDIAN 1234
-#define __BIG_ENDIAN 4321
-#ifdef _LITTLE_ENDIAN
-#define __BYTE_ORDER __LITTLE_ENDIAN
-#else
-#define __BYTE_ORDER __BIG_ENDIAN
-#endif
+#define exfat_bswap16(x) bswap16(x)
+#define exfat_bswap32(x) bswap32(x)
+#define exfat_bswap64(x) bswap64(x)
+#define EXFAT_BYTE_ORDER _BYTE_ORDER
+#define EXFAT_LITTLE_ENDIAN _LITTLE_ENDIAN
+#define EXFAT_BIG_ENDIAN _BIG_ENDIAN
 
 #else 
 #error Unknown platform
diff --git a/exfat/libexfat/time.c b/exfat/libexfat/time.c
index 43c5fa4d9..45c4aff65 100644
--- a/exfat/libexfat/time.c
+++ b/exfat/libexfat/time.c
@@ -3,7 +3,7 @@
 	exFAT file system implementation library.
 
 	Free exFAT implementation.
-	Copyright (C) 2010-2013  Andrew Nayenko
+	Copyright (C) 2010-2015  Andrew Nayenko
 
 	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
diff --git a/exfat/libexfat/utf.c b/exfat/libexfat/utf.c
index 3b7e26b2f..6f14882e8 100644
--- a/exfat/libexfat/utf.c
+++ b/exfat/libexfat/utf.c
@@ -3,7 +3,7 @@
 	exFAT file system implementation library.
 
 	Free exFAT implementation.
-	Copyright (C) 2010-2013  Andrew Nayenko
+	Copyright (C) 2010-2015  Andrew Nayenko
 
 	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
diff --git a/exfat/libexfat/utils.c b/exfat/libexfat/utils.c
index ef87692b4..388f360d9 100644
--- a/exfat/libexfat/utils.c
+++ b/exfat/libexfat/utils.c
@@ -3,7 +3,7 @@
 	exFAT file system implementation library.
 
 	Free exFAT implementation.
-	Copyright (C) 2010-2013  Andrew Nayenko
+	Copyright (C) 2010-2015  Andrew Nayenko
 
 	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
@@ -161,8 +161,8 @@ void exfat_print_info(const struct exfat_super_block* sb,
 		uint32_t free_clusters)
 {
 	struct exfat_human_bytes hb;
-	off64_t total_space = le64_to_cpu(sb->sector_count) * SECTOR_SIZE(*sb);
-	off64_t avail_space = (off64_t) free_clusters * CLUSTER_SIZE(*sb);
+	off_t total_space = le64_to_cpu(sb->sector_count) * SECTOR_SIZE(*sb);
+	off_t avail_space = (off_t) free_clusters * CLUSTER_SIZE(*sb);
 
 	printf("File system version           %hhu.%hhu\n",
 			sb->version.major, sb->version.minor);
diff --git a/exfat/libexfat/version.h b/exfat/libexfat/version.h
deleted file mode 100644
index 062fa0480..000000000
--- a/exfat/libexfat/version.h
+++ /dev/null
@@ -1,30 +0,0 @@
-/*
-	version.h (12.06.10)
-	Version constants.
-
-	Free exFAT implementation.
-	Copyright (C) 2010-2013  Andrew Nayenko
-
-	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.
-*/
-
-#ifndef VERSION_H_INCLUDED
-#define VERSION_H_INCLUDED
-
-#define EXFAT_VERSION_MAJOR 1
-#define EXFAT_VERSION_MINOR 0
-#define EXFAT_VERSION_PATCH 0
-
-#endif /* ifndef VERSION_H_INCLUDED */
diff --git a/exfat/mkfs/Android.mk b/exfat/mkfs/Android.mk
index 2cae2c8ba..0b81aa49b 100644
--- a/exfat/mkfs/Android.mk
+++ b/exfat/mkfs/Android.mk
@@ -1,16 +1,16 @@
 LOCAL_PATH := $(call my-dir)
-
 include $(CLEAR_VARS)
 
 LOCAL_MODULE := mkexfatfs
+LOCAL_MODULE_CLASS := RECOVERY_EXECUTABLES
 LOCAL_MODULE_TAGS := optional
 LOCAL_MODULE_PATH := $(TARGET_RECOVERY_ROOT_OUT)/sbin
 LOCAL_CFLAGS = -D_FILE_OFFSET_BITS=64
-LOCAL_SRC_FILES =  cbm.c fat.c main.c mkexfat.c rootdir.c uct.c uctc.c vbr.c
+LOCAL_SRC_FILES = cbm.c fat.c main.c mkexfat.c rootdir.c uct.c uctc.c vbr.c
 LOCAL_C_INCLUDES += $(LOCAL_PATH) \
 					$(commands_recovery_local_path)/exfat/libexfat \
 					$(commands_recovery_local_path)/fuse/include
-LOCAL_SHARED_LIBRARIES += libz libc libexfat_twrp libdl
-LOCAL_STATIC_LIBRARIES += libfusetwrp
+LOCAL_SHARED_LIBRARIES := libexfat_twrp
+LOCAL_STATIC_LIBRARIES := libfusetwrp
 
 include $(BUILD_EXECUTABLE)
diff --git a/exfat/mkfs/cbm.c b/exfat/mkfs/cbm.c
index 0110b4065..025057132 100644
--- a/exfat/mkfs/cbm.c
+++ b/exfat/mkfs/cbm.c
@@ -3,7 +3,7 @@
 	Clusters Bitmap creation code.
 
 	Free exFAT implementation.
-	Copyright (C) 2011-2013  Andrew Nayenko
+	Copyright (C) 2011-2015  Andrew Nayenko
 
 	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
@@ -20,18 +20,19 @@
 	51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
 */
 
-#include <limits.h>
 #include "cbm.h"
 #include "fat.h"
 #include "uct.h"
 #include "rootdir.h"
+#include <limits.h>
+#include <string.h>
 
-static off64_t cbm_alignment(void)
+static off_t cbm_alignment(void)
 {
 	return get_cluster_size();
 }
 
-static off64_t cbm_size(void)
+static off_t cbm_size(void)
 {
 	return DIV_ROUND_UP(
 			(get_volume_size() - get_position(&cbm)) / get_cluster_size(),
@@ -44,24 +45,26 @@ static int cbm_write(struct exfat_dev* dev)
 			DIV_ROUND_UP(cbm.get_size(), get_cluster_size()) +
 			DIV_ROUND_UP(uct.get_size(), get_cluster_size()) +
 			DIV_ROUND_UP(rootdir.get_size(), get_cluster_size());
-	size_t bitmap_size = DIV_ROUND_UP(allocated_clusters, CHAR_BIT);
-	uint8_t* bitmap = malloc(bitmap_size);
+	size_t bitmap_size = ROUND_UP(allocated_clusters, CHAR_BIT);
+	bitmap_t* bitmap = malloc(BMAP_SIZE(bitmap_size));
 	size_t i;
 
 	if (bitmap == NULL)
 	{
-		exfat_error("failed to allocate bitmap of %zu bytes", bitmap_size);
+		exfat_error("failed to allocate bitmap of %zu bytes",
+				BMAP_SIZE(bitmap_size));
 		return 1;
 	}
+	memset(bitmap, 0, BMAP_SIZE(bitmap_size));
 
-	for (i = 0; i < bitmap_size * CHAR_BIT; i++)
+	for (i = 0; i < bitmap_size; i++)
 		if (i < allocated_clusters)
 			BMAP_SET(bitmap, i);
-		else
-			BMAP_CLR(bitmap, i);
-	if (exfat_write(dev, bitmap, bitmap_size) < 0)
+	if (exfat_write(dev, bitmap, bitmap_size / CHAR_BIT) < 0)
 	{
-		exfat_error("failed to write bitmap of %zu bytes", bitmap_size);
+		free(bitmap);
+		exfat_error("failed to write bitmap of %zu bytes",
+				bitmap_size / CHAR_BIT);
 		return 1;
 	}
 	free(bitmap);
diff --git a/exfat/mkfs/cbm.h b/exfat/mkfs/cbm.h
index b9d285013..414b0d722 100644
--- a/exfat/mkfs/cbm.h
+++ b/exfat/mkfs/cbm.h
@@ -3,7 +3,7 @@
 	Clusters Bitmap creation code.
 
 	Free exFAT implementation.
-	Copyright (C) 2011-2013  Andrew Nayenko
+	Copyright (C) 2011-2015  Andrew Nayenko
 
 	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
diff --git a/exfat/mkfs/fat.c b/exfat/mkfs/fat.c
index 9ed90223e..c70dc8637 100644
--- a/exfat/mkfs/fat.c
+++ b/exfat/mkfs/fat.c
@@ -3,7 +3,7 @@
 	File Allocation Table creation code.
 
 	Free exFAT implementation.
-	Copyright (C) 2011-2013  Andrew Nayenko
+	Copyright (C) 2011-2015  Andrew Nayenko
 
 	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
@@ -20,18 +20,18 @@
 	51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
 */
 
-#include <unistd.h>
 #include "fat.h"
 #include "cbm.h"
 #include "uct.h"
 #include "rootdir.h"
+#include <unistd.h>
 
-static off64_t fat_alignment(void)
+static off_t fat_alignment(void)
 {
-	return (off64_t) 128 * get_sector_size();
+	return (off_t) 128 * get_sector_size();
 }
 
-static off64_t fat_size(void)
+static off_t fat_size(void)
 {
 	return get_volume_size() / get_cluster_size() * sizeof(cluster_t);
 }
diff --git a/exfat/mkfs/fat.h b/exfat/mkfs/fat.h
index 1327f0acc..9370cf399 100644
--- a/exfat/mkfs/fat.h
+++ b/exfat/mkfs/fat.h
@@ -3,7 +3,7 @@
 	File Allocation Table creation code.
 
 	Free exFAT implementation.
-	Copyright (C) 2011-2013  Andrew Nayenko
+	Copyright (C) 2011-2015  Andrew Nayenko
 
 	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
diff --git a/exfat/mkfs/main.c b/exfat/mkfs/main.c
index 3c3c3829f..2ee6da6ac 100644
--- a/exfat/mkfs/main.c
+++ b/exfat/mkfs/main.c
@@ -3,7 +3,7 @@
 	Creates exFAT file system.
 
 	Free exFAT implementation.
-	Copyright (C) 2011-2013  Andrew Nayenko
+	Copyright (C) 2011-2015  Andrew Nayenko
 
 	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
@@ -20,6 +20,13 @@
 	51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
 */
 
+#include "mkexfat.h"
+#include "vbr.h"
+#include "fat.h"
+#include "cbm.h"
+#include "uct.h"
+#include "rootdir.h"
+#include <exfat.h>
 #include <sys/types.h>
 #include <sys/time.h>
 #include <unistd.h>
@@ -27,13 +34,6 @@
 #include <stdio.h>
 #include <string.h>
 #include <limits.h>
-#include <exfat.h>
-#include "mkexfat.h"
-#include "vbr.h"
-#include "fat.h"
-#include "cbm.h"
-#include "uct.h"
-#include "rootdir.h"
 
 const struct fs_object* objects[] =
 {
@@ -51,7 +51,7 @@ static struct
 {
 	int sector_bits;
 	int spc_bits;
-	off64_t volume_size;
+	off_t volume_size;
 	le16_t volume_label[EXFAT_ENAME_MAX + 1];
 	uint32_t volume_serial;
 	uint64_t first_sector;
@@ -68,7 +68,7 @@ int get_spc_bits(void)
 	return param.spc_bits;
 }
 
-off64_t get_volume_size(void)
+off_t get_volume_size(void)
 {
 	return param.volume_size;
 }
@@ -98,13 +98,13 @@ int get_cluster_size(void)
 	return get_sector_size() << get_spc_bits();
 }
 
-static int setup_spc_bits(int sector_bits, int user_defined, off64_t volume_size)
+static int setup_spc_bits(int sector_bits, int user_defined, off_t volume_size)
 {
 	int i;
 
 	if (user_defined != -1)
 	{
-		off64_t cluster_size = 1 << sector_bits << user_defined;
+		off_t cluster_size = 1 << sector_bits << user_defined;
 		if (volume_size / cluster_size > EXFAT_LAST_DATA_CLUSTER)
 		{
 			struct exfat_human_bytes chb, vhb;
@@ -204,8 +204,7 @@ int main(int argc, char* argv[])
 	uint64_t first_sector = 0;
 	struct exfat_dev* dev;
 
-	printf("mkexfatfs %u.%u.%u\n",
-			EXFAT_VERSION_MAJOR, EXFAT_VERSION_MINOR, EXFAT_VERSION_PATCH);
+	printf("mkexfatfs %s\n", VERSION);
 
 	while ((opt = getopt(argc, argv, "i:n:p:s:V")) != -1)
 	{
@@ -224,12 +223,12 @@ int main(int argc, char* argv[])
 			spc_bits = logarithm2(atoi(optarg));
 			if (spc_bits < 0)
 			{
-				exfat_error("invalid option value: `%s'", optarg);
+				exfat_error("invalid option value: '%s'", optarg);
 				return 1;
 			}
 			break;
 		case 'V':
-			puts("Copyright (C) 2011-2013  Andrew Nayenko");
+			puts("Copyright (C) 2011-2015  Andrew Nayenko");
 			return 0;
 		default:
 			usage(argv[0]);
diff --git a/exfat/mkfs/mkexfat.c b/exfat/mkfs/mkexfat.c
index c5c86d9b8..4b7a344c8 100644
--- a/exfat/mkfs/mkexfat.c
+++ b/exfat/mkfs/mkexfat.c
@@ -3,7 +3,7 @@
 	FS creation engine.
 
 	Free exFAT implementation.
-	Copyright (C) 2011-2013  Andrew Nayenko
+	Copyright (C) 2011-2015  Andrew Nayenko
 
 	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
@@ -20,17 +20,17 @@
 	51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
 */
 
+#include "mkexfat.h"
 #include <sys/types.h>
 #include <unistd.h>
 #include <inttypes.h>
 #include <stdio.h>
 #include <string.h>
-#include "mkexfat.h"
 
-static int check_size(off64_t volume_size)
+static int check_size(off_t volume_size)
 {
 	const struct fs_object** pp;
-	off64_t position = 0;
+	off_t position = 0;
 
 	for (pp = objects; *pp; pp++)
 	{
@@ -52,12 +52,12 @@ static int check_size(off64_t volume_size)
 }
 
 static int erase_object(struct exfat_dev* dev, const void* block,
-		size_t block_size, off64_t start, off64_t size)
+		size_t block_size, off_t start, off_t size)
 {
-	const off64_t block_count = DIV_ROUND_UP(size, block_size);
-	off64_t i;
+	const off_t block_count = DIV_ROUND_UP(size, block_size);
+	off_t i;
 
-	if (exfat_seek(dev, start, SEEK_SET) == (off64_t) -1)
+	if (exfat_seek(dev, start, SEEK_SET) == (off_t) -1)
 	{
 		exfat_error("seek to 0x%"PRIx64" failed", start);
 		return 1;
@@ -77,7 +77,7 @@ static int erase_object(struct exfat_dev* dev, const void* block,
 static int erase(struct exfat_dev* dev)
 {
 	const struct fs_object** pp;
-	off64_t position = 0;
+	off_t position = 0;
 	const size_t block_size = 1024 * 1024;
 	void* block = malloc(block_size);
 
@@ -107,12 +107,12 @@ static int erase(struct exfat_dev* dev)
 static int create(struct exfat_dev* dev)
 {
 	const struct fs_object** pp;
-	off64_t position = 0;
+	off_t position = 0;
 
 	for (pp = objects; *pp; pp++)
 	{
 		position = ROUND_UP(position, (*pp)->get_alignment());
-		if (exfat_seek(dev, position, SEEK_SET) == (off64_t) -1)
+		if (exfat_seek(dev, position, SEEK_SET) == (off_t) -1)
 		{
 			exfat_error("seek to 0x%"PRIx64" failed", position);
 			return 1;
@@ -124,7 +124,7 @@ static int create(struct exfat_dev* dev)
 	return 0;
 }
 
-int mkfs(struct exfat_dev* dev, off64_t volume_size)
+int mkfs(struct exfat_dev* dev, off_t volume_size)
 {
 	if (check_size(volume_size) != 0)
 		return 1;
@@ -146,10 +146,10 @@ int mkfs(struct exfat_dev* dev, off64_t volume_size)
 	return 0;
 }
 
-off64_t get_position(const struct fs_object* object)
+off_t get_position(const struct fs_object* object)
 {
 	const struct fs_object** pp;
-	off64_t position = 0;
+	off_t position = 0;
 
 	for (pp = objects; *pp; pp++)
 	{
diff --git a/exfat/mkfs/mkexfat.h b/exfat/mkfs/mkexfat.h
index d0685afa7..8d2b5e393 100644
--- a/exfat/mkfs/mkexfat.h
+++ b/exfat/mkfs/mkexfat.h
@@ -3,7 +3,7 @@
 	FS creation engine.
 
 	Free exFAT implementation.
-	Copyright (C) 2011-2013  Andrew Nayenko
+	Copyright (C) 2011-2015  Andrew Nayenko
 
 	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
@@ -27,8 +27,8 @@
 
 struct fs_object
 {
-	off64_t (*get_alignment)(void);
-	off64_t (*get_size)(void);
+	off_t (*get_alignment)(void);
+	off_t (*get_size)(void);
 	int (*write)(struct exfat_dev* dev);
 };
 
@@ -36,14 +36,14 @@ extern const struct fs_object* objects[];
 
 int get_sector_bits(void);
 int get_spc_bits(void);
-off64_t get_volume_size(void);
+off_t get_volume_size(void);
 const le16_t* get_volume_label(void);
 uint32_t get_volume_serial(void);
 uint64_t get_first_sector(void);
 int get_sector_size(void);
 int get_cluster_size(void);
 
-int mkfs(struct exfat_dev* dev, off64_t volume_size);
-off64_t get_position(const struct fs_object* object);
+int mkfs(struct exfat_dev* dev, off_t volume_size);
+off_t get_position(const struct fs_object* object);
 
 #endif /* ifndef MKFS_MKEXFAT_H_INCLUDED */
diff --git a/exfat/mkfs/mkexfatfs.8 b/exfat/mkfs/mkexfatfs.8
index 5f6ba3db7..e3394688d 100644
--- a/exfat/mkfs/mkexfatfs.8
+++ b/exfat/mkfs/mkexfatfs.8
@@ -1,4 +1,4 @@
-.\" Copyright (C) 2011  Andrew Nayenko
+.\" Copyright (C) 2011-2015  Andrew Nayenko
 .\"
 .TH MKEXFATFS 8 "January 2011"
 .SH NAME
@@ -31,7 +31,10 @@
 .B mkexfatfs
 creates an exFAT file system on a block device.
 .I device
-is a special file corresponding to the device.
+is a special file corresponding to the partition on the device. Note that if
+this is an MBR partition then the file system type should be set to 0x07
+(NTFS/exFAT) otherwise other operating systems may refuse to mount the
+file system.
 
 .SH OPTIONS
 Command line options available:
@@ -65,4 +68,4 @@ Zero is returned on successful creation. Any other code means an error.
 Andrew Nayenko
 
 .SH SEE ALSO
-.BR mkfs (8)
+.BR mkfs (8), fdisk (8)
diff --git a/exfat/mkfs/rootdir.c b/exfat/mkfs/rootdir.c
index 49d364324..84fa31f40 100644
--- a/exfat/mkfs/rootdir.c
+++ b/exfat/mkfs/rootdir.c
@@ -3,7 +3,7 @@
 	Root directory creation code.
 
 	Free exFAT implementation.
-	Copyright (C) 2011-2013  Andrew Nayenko
+	Copyright (C) 2011-2015  Andrew Nayenko
 
 	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
@@ -20,18 +20,18 @@
 	51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
 */
 
-#include <string.h>
 #include "rootdir.h"
 #include "uct.h"
 #include "cbm.h"
 #include "uctc.h"
+#include <string.h>
 
-static off64_t rootdir_alignment(void)
+static off_t rootdir_alignment(void)
 {
 	return get_cluster_size();
 }
 
-static off64_t rootdir_size(void)
+static off_t rootdir_size(void)
 {
 	return get_cluster_size();
 }
diff --git a/exfat/mkfs/rootdir.h b/exfat/mkfs/rootdir.h
index 2d1d3453c..56db5b026 100644
--- a/exfat/mkfs/rootdir.h
+++ b/exfat/mkfs/rootdir.h
@@ -3,7 +3,7 @@
 	Root directory creation code.
 
 	Free exFAT implementation.
-	Copyright (C) 2011-2013  Andrew Nayenko
+	Copyright (C) 2011-2015  Andrew Nayenko
 
 	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
diff --git a/exfat/mkfs/uct.c b/exfat/mkfs/uct.c
index 5f173233c..d1deb2d02 100644
--- a/exfat/mkfs/uct.c
+++ b/exfat/mkfs/uct.c
@@ -3,7 +3,7 @@
 	Upper Case Table creation code.
 
 	Free exFAT implementation.
-	Copyright (C) 2011-2013  Andrew Nayenko
+	Copyright (C) 2011-2015  Andrew Nayenko
 
 	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
@@ -23,12 +23,12 @@
 #include "uct.h"
 #include "uctc.h"
 
-static off64_t uct_alignment(void)
+static off_t uct_alignment(void)
 {
 	return get_cluster_size();
 }
 
-static off64_t uct_size(void)
+static off_t uct_size(void)
 {
 	return sizeof(upcase_table);
 }
diff --git a/exfat/mkfs/uct.h b/exfat/mkfs/uct.h
index ef3339218..3a08db967 100644
--- a/exfat/mkfs/uct.h
+++ b/exfat/mkfs/uct.h
@@ -3,7 +3,7 @@
 	Upper Case Table creation code.
 
 	Free exFAT implementation.
-	Copyright (C) 2011-2013  Andrew Nayenko
+	Copyright (C) 2011-2015  Andrew Nayenko
 
 	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
diff --git a/exfat/mkfs/uctc.c b/exfat/mkfs/uctc.c
index 1ee8efe3f..5849f3777 100644
--- a/exfat/mkfs/uctc.c
+++ b/exfat/mkfs/uctc.c
@@ -3,7 +3,7 @@
 	Upper Case Table contents.
 
 	Free exFAT implementation.
-	Copyright (C) 2011-2013  Andrew Nayenko
+	Copyright (C) 2011-2015  Andrew Nayenko
 
 	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
diff --git a/exfat/mkfs/uctc.h b/exfat/mkfs/uctc.h
index 3e7dee0ef..3e200f154 100644
--- a/exfat/mkfs/uctc.h
+++ b/exfat/mkfs/uctc.h
@@ -3,7 +3,7 @@
 	Upper Case Table declaration.
 
 	Free exFAT implementation.
-	Copyright (C) 2011-2013  Andrew Nayenko
+	Copyright (C) 2011-2015  Andrew Nayenko
 
 	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
diff --git a/exfat/mkfs/vbr.c b/exfat/mkfs/vbr.c
index bbf1304d9..702aa6d14 100644
--- a/exfat/mkfs/vbr.c
+++ b/exfat/mkfs/vbr.c
@@ -3,7 +3,7 @@
 	Volume Boot Record creation code.
 
 	Free exFAT implementation.
-	Copyright (C) 2011-2013  Andrew Nayenko
+	Copyright (C) 2011-2015  Andrew Nayenko
 
 	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
@@ -20,19 +20,19 @@
 	51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
 */
 
-#include <string.h>
 #include "vbr.h"
 #include "fat.h"
 #include "cbm.h"
 #include "uct.h"
 #include "rootdir.h"
+#include <string.h>
 
-static off64_t vbr_alignment(void)
+static off_t vbr_alignment(void)
 {
 	return get_sector_size();
 }
 
-static off64_t vbr_size(void)
+static off_t vbr_size(void)
 {
 	return 12 * get_sector_size();
 }
@@ -43,7 +43,7 @@ static void init_sb(struct exfat_super_block* sb)
 	uint32_t fat_sectors;
 
 	clusters_max = get_volume_size() / get_cluster_size();
-	fat_sectors = DIV_ROUND_UP((off64_t) clusters_max * sizeof(cluster_t),
+	fat_sectors = DIV_ROUND_UP((off_t) clusters_max * sizeof(cluster_t),
 			get_sector_size());
 
 	memset(sb, 0, sizeof(struct exfat_super_block));
diff --git a/exfat/mkfs/vbr.h b/exfat/mkfs/vbr.h
index fec88bc1e..74e60e50c 100644
--- a/exfat/mkfs/vbr.h
+++ b/exfat/mkfs/vbr.h
@@ -3,7 +3,7 @@
 	Volume Boot Record creation code.
 
 	Free exFAT implementation.
-	Copyright (C) 2011-2013  Andrew Nayenko
+	Copyright (C) 2011-2015  Andrew Nayenko
 
 	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