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1.3.0 (2018-09-15)
* exfatfsck can now repair some errors.
* Added experimental Android support for exfat-utils [liminghao, LongPingWEI,
Pablo Mendez Hernandez, Pierre-Hugues Husson].
* Cleaned up FUSE code preparing for FUSE 3 support.
* Removed OpenBSD support as it does not handle -o option in fuse_main().
* Re-introduced FreeBSD support [Oleksii Samorukov].
* Fixed DragonFly BSD support [Tomohiro Kusumi].
* dirent->d_type in now filled on readdir() [Mark Browning].
1.2.8 (2018-02-03)
* Fixed new files or directories creation in the root directory: ensure there
are no 0x00 entries before valid ones; otherwise Windows can corrupt them.
* Fixed compilation on GNU/HURD platform.
1.2.7 (2017-06-05)
* Fixed handling of two last clusters: operations with files that occupy these
clusters could fail.
* Fixed crash when started with stdin, stdout or stderr closed.
1.2.6 (2017-01-28)
* Operations with directories (except initial listing) now make less
read/write system calls.
* Fixed handling of files with optional tail entries (0xe0-0xff): videoclip
files created by Sony cameras were missing.
* Write operations now correctly return ENOSPC (instead of EIO) when there is
no free disk space left.
* Fixed max file name length: it's 255 16-bit code units (not 256).
1.2.5 (2016-12-05)
* Added an option for dumpexfat to show file fragments [Daniel Drake].
* Fixed crash when directory starts with an invalid cluster.
* Daylight saving time in now properly reflected in file timestamps.
1.2.4 (2016-06-03)
* Fixed wrong files names hashes when upper case table is compressed.
* Man pages are now installed by default.
* Commas and backslashes in device names are now escaped.
1.2.3 (2015-12-19)
* Fixed clusters loss when file renaming replaces target.
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
differs only in case.
* Fixed clusters allocation: a cluster beyond valid clusters range could be
allocated.
* Fixed crash when a volume is unmounted while some files are open.
* SConscript now respects AR and RANLIB environment variables.
* Improved error handling.
Linux:
* Enabled big_writes. This improves write speed (larger block size means less
switches between kernel- and user-space).
* Do BLKROGET ioctl to make sure the device is not read-only: after
"blockdev --setro" kernel still allows to open the device in read-write mode
but fails writes.
OS X:
* Fixed OS X 10.8 support.
* Switched to 64-bit inode numbers (now Mac OS X 10.5 or later is required).
* Switched from unmaintained MacFUSE to OSXFUSE (http://osxfuse.github.com).
* Fixed device size detection. Now mkfs works.
* Workarounded some utilities failures due to missing chmod() support.
* Disabled (senseless) permission checks made by FUSE.
0.9.8 (2012-08-09)
* The mkfs utility can now create huge file systems (up to several exabytes).
* Fixed handling of characters beyond Basic Multilingual Plane.
* Echo messages to syslog only if stderr is not connected to a terminal.
0.9.7 (2012-03-08)
* Out-of-the-box FreeBSD support (via ublio library).
* Fixed "missing EOD entry" error (could happen while reading directory that
consists of several clusters).
* Fixed interpretation of minutes field in files timestamps (minutes could be
displayed incorrectly).
* Fixed mtime seconds field initialization for newly created file (mtime could
be 1 sec less than creation time).
* SConscript now respects CC, CCFLAGS and LDFLAGS environment variables.
0.9.6 (2012-01-14)
* Fixed write performance regression introduced in 0.9.4.
* Mount in read-only mode if the device is write-protected.
* Set ctime to mtime to ensure we don't break programs that rely on ctime
(e.g. rsync considered that all files are outdated) [Eldad Zack].
* Indicate that FS in not clean when it was not cleanly unmounted.
* Utilities are now compatible with GNU/Hurd.
* Fixed several memory leaks that could occur on error handling paths.
* Improved handling of corrupted file systems.
0.9.5 (2011-05-15)
* Fixed erasing of the root directory cluster when creating a new FS with
mkexfatfs. This bug could cause mkexfatfs to produce invalid FS.
* Utilities are not linked with libfuse anymore.
* Ensure that the path being opened is either a device or a regular file.
0.9.4 (2011-03-05)
* Introduced exfat-utils: dumpexfat, exfatfsck, mkexfatfs, exfatlabel.
* Fixed "Invalid argument" error while mounting a volume from a disk with sector size greater than 512 bytes.
* Wait for all data to be flushed to disk on unmount.
* Kernel cache is no longer flushed on open. This can slightly improve read performance by avoiding extra read requests from kernel to user-space.
* Allow to unmount volumes as user (fusermount -u) if they were mounted from the very same user [Tino Lange].
* Errors and warnings are now duplicated to syslog.
0.9.3 (2010-09-25)
* Directories now can shrink.
* Improved timestamps resolution from 2 sec to 1 sec.
* Fixed timestamps displaying under Mac OS X when compiled for i386 or ppc.
* Fixed FS size displaying for non-GNU systems.
0.9.2 (2010-07-24)
* Fixed a bug which could cause the whole directory to become unreadable after renaming a file in it.
* Support for Solaris and various *BSD [Albert Lee].
* Improved error handling on corrupted volumes.
* Improved allowed file name characters filter.
* Added man page.
0.9.1 (2010-06-12)
* Implemented automounting (util-linux-ng 2.18 or later is required).
* Fixed mounting when cluster bitmap is larger than expected.
* Fixed crash on statfs() when root directory contains error.
* Fixed bugs specific to big-endian machines.
* Other bugfixes.
0.9.0 (2010-03-21)
* Initial release.

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#
# Makefile.am (30.03.15)
# Automake source.
#
# Free exFAT implementation.
# Copyright (C) 2010-2018 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.
#
SUBDIRS = libexfat dump fsck label mkfs

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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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maintainer-clean: maintainer-clean-recursive
-rm -f $(am__CONFIG_DISTCLEAN_FILES)
-rm -rf $(top_srcdir)/autom4te.cache
-rm -f Makefile
maintainer-clean-am: distclean-am maintainer-clean-generic
mostlyclean: mostlyclean-recursive
mostlyclean-am: mostlyclean-generic
pdf: pdf-recursive
pdf-am:
ps: ps-recursive
ps-am:
uninstall-am:
.MAKE: $(am__recursive_targets) install-am install-strip
.PHONY: $(am__recursive_targets) CTAGS GTAGS TAGS all all-am \
am--refresh check check-am clean clean-cscope clean-generic \
cscope cscopelist-am ctags ctags-am dist dist-all dist-bzip2 \
dist-gzip dist-lzip dist-shar dist-tarZ dist-xz dist-zip \
distcheck distclean distclean-generic distclean-tags \
distcleancheck distdir distuninstallcheck dvi dvi-am html \
html-am info info-am install install-am install-data \
install-data-am install-dvi install-dvi-am install-exec \
install-exec-am install-html install-html-am install-info \
install-info-am install-man install-pdf install-pdf-am \
install-ps install-ps-am install-strip installcheck \
installcheck-am installdirs installdirs-am maintainer-clean \
maintainer-clean-generic mostlyclean mostlyclean-generic pdf \
pdf-am ps ps-am tags tags-am uninstall uninstall-am
.PRECIOUS: Makefile
# Tell versions [3.59,3.63) of GNU make to not export all variables.
# Otherwise a system limit (for SysV at least) may be exceeded.
.NOEXPORT:

69
README Normal file
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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
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 on GNU/Linux you need to install the following packages:
* [pkg-config][7]
* fuse-devel (or libfuse-dev)
* [gcc][8]
* [make][9]
On Mac OS X:
* pkg-config
* [OSXFUSE][10]
* [Xcode][11] (legacy versions include autotools but their versions are too old)
On OpenBSD:
Get the source code, change directory and compile:
./configure
make
Then install driver and utilities (from root):
make install
You can remove them using this command (from root):
make uninstall
Mounting
--------
Modern GNU/Linux distributions (with [util-linux][12] 2.18 or later) will mount exFAT volumes automatically. Anyway, you can mount manually (from root):
mount.exfat-fuse /dev/spec /mnt/exfat
where /dev/spec is the [device file][13], /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]: https://en.wikipedia.org/wiki/ExFAT
[2]: https://en.wikipedia.org/wiki/Filesystem_in_Userspace
[3]: https://github.com/relan/exfat/issues
[7]: http://www.freedesktop.org/wiki/Software/pkg-config/
[8]: https://gcc.gnu.org/
[9]: https://www.gnu.org/software/make/
[10]: https://osxfuse.github.io/
[11]: https://en.wikipedia.org/wiki/Xcode
[12]: https://www.kernel.org/pub/linux/utils/util-linux/
[13]: https://en.wikipedia.org/wiki/Device_file

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aclocal.m4 vendored Normal file
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270
ar-lib Executable file
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#! /bin/sh
# Wrapper for Microsoft lib.exe
me=ar-lib
scriptversion=2012-03-01.08; # UTC
# Copyright (C) 2010-2014 Free Software Foundation, Inc.
# Written by Peter Rosin <peda@lysator.liu.se>.
#
# 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, or (at your option)
# any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
# As a special exception to the GNU General Public License, if you
# distribute this file as part of a program that contains a
# configuration script generated by Autoconf, you may include it under
# the same distribution terms that you use for the rest of that program.
# This file is maintained in Automake, please report
# bugs to <bug-automake@gnu.org> or send patches to
# <automake-patches@gnu.org>.
# func_error message
func_error ()
{
echo "$me: $1" 1>&2
exit 1
}
file_conv=
# func_file_conv build_file
# Convert a $build file to $host form and store it in $file
# Currently only supports Windows hosts.
func_file_conv ()
{
file=$1
case $file in
/ | /[!/]*) # absolute file, and not a UNC file
if test -z "$file_conv"; then
# lazily determine how to convert abs files
case `uname -s` in
MINGW*)
file_conv=mingw
;;
CYGWIN*)
file_conv=cygwin
;;
*)
file_conv=wine
;;
esac
fi
case $file_conv in
mingw)
file=`cmd //C echo "$file " | sed -e 's/"\(.*\) " *$/\1/'`
;;
cygwin)
file=`cygpath -m "$file" || echo "$file"`
;;
wine)
file=`winepath -w "$file" || echo "$file"`
;;
esac
;;
esac
}
# func_at_file at_file operation archive
# Iterate over all members in AT_FILE performing OPERATION on ARCHIVE
# for each of them.
# When interpreting the content of the @FILE, do NOT use func_file_conv,
# since the user would need to supply preconverted file names to
# binutils ar, at least for MinGW.
func_at_file ()
{
operation=$2
archive=$3
at_file_contents=`cat "$1"`
eval set x "$at_file_contents"
shift
for member
do
$AR -NOLOGO $operation:"$member" "$archive" || exit $?
done
}
case $1 in
'')
func_error "no command. Try '$0 --help' for more information."
;;
-h | --h*)
cat <<EOF
Usage: $me [--help] [--version] PROGRAM ACTION ARCHIVE [MEMBER...]
Members may be specified in a file named with @FILE.
EOF
exit $?
;;
-v | --v*)
echo "$me, version $scriptversion"
exit $?
;;
esac
if test $# -lt 3; then
func_error "you must specify a program, an action and an archive"
fi
AR=$1
shift
while :
do
if test $# -lt 2; then
func_error "you must specify a program, an action and an archive"
fi
case $1 in
-lib | -LIB \
| -ltcg | -LTCG \
| -machine* | -MACHINE* \
| -subsystem* | -SUBSYSTEM* \
| -verbose | -VERBOSE \
| -wx* | -WX* )
AR="$AR $1"
shift
;;
*)
action=$1
shift
break
;;
esac
done
orig_archive=$1
shift
func_file_conv "$orig_archive"
archive=$file
# strip leading dash in $action
action=${action#-}
delete=
extract=
list=
quick=
replace=
index=
create=
while test -n "$action"
do
case $action in
d*) delete=yes ;;
x*) extract=yes ;;
t*) list=yes ;;
q*) quick=yes ;;
r*) replace=yes ;;
s*) index=yes ;;
S*) ;; # the index is always updated implicitly
c*) create=yes ;;
u*) ;; # TODO: don't ignore the update modifier
v*) ;; # TODO: don't ignore the verbose modifier
*)
func_error "unknown action specified"
;;
esac
action=${action#?}
done
case $delete$extract$list$quick$replace,$index in
yes,* | ,yes)
;;
yesyes*)
func_error "more than one action specified"
;;
*)
func_error "no action specified"
;;
esac
if test -n "$delete"; then
if test ! -f "$orig_archive"; then
func_error "archive not found"
fi
for member
do
case $1 in
@*)
func_at_file "${1#@}" -REMOVE "$archive"
;;
*)
func_file_conv "$1"
$AR -NOLOGO -REMOVE:"$file" "$archive" || exit $?
;;
esac
done
elif test -n "$extract"; then
if test ! -f "$orig_archive"; then
func_error "archive not found"
fi
if test $# -gt 0; then
for member
do
case $1 in
@*)
func_at_file "${1#@}" -EXTRACT "$archive"
;;
*)
func_file_conv "$1"
$AR -NOLOGO -EXTRACT:"$file" "$archive" || exit $?
;;
esac
done
else
$AR -NOLOGO -LIST "$archive" | sed -e 's/\\/\\\\/g' | while read member
do
$AR -NOLOGO -EXTRACT:"$member" "$archive" || exit $?
done
fi
elif test -n "$quick$replace"; then
if test ! -f "$orig_archive"; then
if test -z "$create"; then
echo "$me: creating $orig_archive"
fi
orig_archive=
else
orig_archive=$archive
fi
for member
do
case $1 in
@*)
func_file_conv "${1#@}"
set x "$@" "@$file"
;;
*)
func_file_conv "$1"
set x "$@" "$file"
;;
esac
shift
shift
done
if test -n "$orig_archive"; then
$AR -NOLOGO -OUT:"$archive" "$orig_archive" "$@" || exit $?
else
$AR -NOLOGO -OUT:"$archive" "$@" || exit $?
fi
elif test -n "$list"; then
if test ! -f "$orig_archive"; then
func_error "archive not found"
fi
$AR -NOLOGO -LIST "$archive" || exit $?
fi

347
compile Executable file
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#! /bin/sh
# Wrapper for compilers which do not understand '-c -o'.
scriptversion=2012-10-14.11; # UTC
# Copyright (C) 1999-2014 Free Software Foundation, Inc.
# Written by Tom Tromey <tromey@cygnus.com>.
#
# 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, or (at your option)
# any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
# As a special exception to the GNU General Public License, if you
# distribute this file as part of a program that contains a
# configuration script generated by Autoconf, you may include it under
# the same distribution terms that you use for the rest of that program.
# This file is maintained in Automake, please report
# bugs to <bug-automake@gnu.org> or send patches to
# <automake-patches@gnu.org>.
nl='
'
# We need space, tab and new line, in precisely that order. Quoting is
# there to prevent tools from complaining about whitespace usage.
IFS=" "" $nl"
file_conv=
# func_file_conv build_file lazy
# Convert a $build file to $host form and store it in $file
# Currently only supports Windows hosts. If the determined conversion
# type is listed in (the comma separated) LAZY, no conversion will
# take place.
func_file_conv ()
{
file=$1
case $file in
/ | /[!/]*) # absolute file, and not a UNC file
if test -z "$file_conv"; then
# lazily determine how to convert abs files
case `uname -s` in
MINGW*)
file_conv=mingw
;;
CYGWIN*)
file_conv=cygwin
;;
*)
file_conv=wine
;;
esac
fi
case $file_conv/,$2, in
*,$file_conv,*)
;;
mingw/*)
file=`cmd //C echo "$file " | sed -e 's/"\(.*\) " *$/\1/'`
;;
cygwin/*)
file=`cygpath -m "$file" || echo "$file"`
;;
wine/*)
file=`winepath -w "$file" || echo "$file"`
;;
esac
;;
esac
}
# func_cl_dashL linkdir
# Make cl look for libraries in LINKDIR
func_cl_dashL ()
{
func_file_conv "$1"
if test -z "$lib_path"; then
lib_path=$file
else
lib_path="$lib_path;$file"
fi
linker_opts="$linker_opts -LIBPATH:$file"
}
# func_cl_dashl library
# Do a library search-path lookup for cl
func_cl_dashl ()
{
lib=$1
found=no
save_IFS=$IFS
IFS=';'
for dir in $lib_path $LIB
do
IFS=$save_IFS
if $shared && test -f "$dir/$lib.dll.lib"; then
found=yes
lib=$dir/$lib.dll.lib
break
fi
if test -f "$dir/$lib.lib"; then
found=yes
lib=$dir/$lib.lib
break
fi
if test -f "$dir/lib$lib.a"; then
found=yes
lib=$dir/lib$lib.a
break
fi
done
IFS=$save_IFS
if test "$found" != yes; then
lib=$lib.lib
fi
}
# func_cl_wrapper cl arg...
# Adjust compile command to suit cl
func_cl_wrapper ()
{
# Assume a capable shell
lib_path=
shared=:
linker_opts=
for arg
do
if test -n "$eat"; then
eat=
else
case $1 in
-o)
# configure might choose to run compile as 'compile cc -o foo foo.c'.
eat=1
case $2 in
*.o | *.[oO][bB][jJ])
func_file_conv "$2"
set x "$@" -Fo"$file"
shift
;;
*)
func_file_conv "$2"
set x "$@" -Fe"$file"
shift
;;
esac
;;
-I)
eat=1
func_file_conv "$2" mingw
set x "$@" -I"$file"
shift
;;
-I*)
func_file_conv "${1#-I}" mingw
set x "$@" -I"$file"
shift
;;
-l)
eat=1
func_cl_dashl "$2"
set x "$@" "$lib"
shift
;;
-l*)
func_cl_dashl "${1#-l}"
set x "$@" "$lib"
shift
;;
-L)
eat=1
func_cl_dashL "$2"
;;
-L*)
func_cl_dashL "${1#-L}"
;;
-static)
shared=false
;;
-Wl,*)
arg=${1#-Wl,}
save_ifs="$IFS"; IFS=','
for flag in $arg; do
IFS="$save_ifs"
linker_opts="$linker_opts $flag"
done
IFS="$save_ifs"
;;
-Xlinker)
eat=1
linker_opts="$linker_opts $2"
;;
-*)
set x "$@" "$1"
shift
;;
*.cc | *.CC | *.cxx | *.CXX | *.[cC]++)
func_file_conv "$1"
set x "$@" -Tp"$file"
shift
;;
*.c | *.cpp | *.CPP | *.lib | *.LIB | *.Lib | *.OBJ | *.obj | *.[oO])
func_file_conv "$1" mingw
set x "$@" "$file"
shift
;;
*)
set x "$@" "$1"
shift
;;
esac
fi
shift
done
if test -n "$linker_opts"; then
linker_opts="-link$linker_opts"
fi
exec "$@" $linker_opts
exit 1
}
eat=
case $1 in
'')
echo "$0: No command. Try '$0 --help' for more information." 1>&2
exit 1;
;;
-h | --h*)
cat <<\EOF
Usage: compile [--help] [--version] PROGRAM [ARGS]
Wrapper for compilers which do not understand '-c -o'.
Remove '-o dest.o' from ARGS, run PROGRAM with the remaining
arguments, and rename the output as expected.
If you are trying to build a whole package this is not the
right script to run: please start by reading the file 'INSTALL'.
Report bugs to <bug-automake@gnu.org>.
EOF
exit $?
;;
-v | --v*)
echo "compile $scriptversion"
exit $?
;;
cl | *[/\\]cl | cl.exe | *[/\\]cl.exe )
func_cl_wrapper "$@" # Doesn't return...
;;
esac
ofile=
cfile=
for arg
do
if test -n "$eat"; then
eat=
else
case $1 in
-o)
# configure might choose to run compile as 'compile cc -o foo foo.c'.
# So we strip '-o arg' only if arg is an object.
eat=1
case $2 in
*.o | *.obj)
ofile=$2
;;
*)
set x "$@" -o "$2"
shift
;;
esac
;;
*.c)
cfile=$1
set x "$@" "$1"
shift
;;
*)
set x "$@" "$1"
shift
;;
esac
fi
shift
done
if test -z "$ofile" || test -z "$cfile"; then
# If no '-o' option was seen then we might have been invoked from a
# pattern rule where we don't need one. That is ok -- this is a
# normal compilation that the losing compiler can handle. If no
# '.c' file was seen then we are probably linking. That is also
# ok.
exec "$@"
fi
# Name of file we expect compiler to create.
cofile=`echo "$cfile" | sed 's|^.*[\\/]||; s|^[a-zA-Z]:||; s/\.c$/.o/'`
# Create the lock directory.
# Note: use '[/\\:.-]' here to ensure that we don't use the same name
# that we are using for the .o file. Also, base the name on the expected
# object file name, since that is what matters with a parallel build.
lockdir=`echo "$cofile" | sed -e 's|[/\\:.-]|_|g'`.d
while true; do
if mkdir "$lockdir" >/dev/null 2>&1; then
break
fi
sleep 1
done
# FIXME: race condition here if user kills between mkdir and trap.
trap "rmdir '$lockdir'; exit 1" 1 2 15
# Run the compile.
"$@"
ret=$?
if test -f "$cofile"; then
test "$cofile" = "$ofile" || mv "$cofile" "$ofile"
elif test -f "${cofile}bj"; then
test "${cofile}bj" = "$ofile" || mv "${cofile}bj" "$ofile"
fi
rmdir "$lockdir"
exit $ret
# Local Variables:
# mode: shell-script
# sh-indentation: 2
# eval: (add-hook 'write-file-hooks 'time-stamp)
# time-stamp-start: "scriptversion="
# time-stamp-format: "%:y-%02m-%02d.%02H"
# time-stamp-time-zone: "UTC"
# time-stamp-end: "; # UTC"
# End:

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48
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#
# configure.ac (30.03.15)
# Autoconf source.
#
# Free exFAT implementation.
# Copyright (C) 2010-2018 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.
#
AC_INIT([Free exFAT implementation],
[1.3.0],
[relan@users.noreply.github.com],
[exfat-utils],
[https://github.com/relan/exfat])
AM_INIT_AUTOMAKE([1.11.2 -Wall -Werror foreign subdir-objects])
AC_PROG_CC
AC_PROG_CC_C99
AC_PROG_RANLIB
AM_PROG_AR
AC_SYS_LARGEFILE
PKG_CHECK_MODULES([UBLIO], [libublio], [
CFLAGS="$CFLAGS $UBLIO_CFLAGS"
LIBS="$LIBS $UBLIO_LIBS"
AC_DEFINE([USE_UBLIO], [1],
[Define if block devices are not supported.])
], [:])
AC_CONFIG_HEADERS([libexfat/config.h])
AC_CONFIG_FILES([
libexfat/Makefile
dump/Makefile
fsck/Makefile
label/Makefile
mkfs/Makefile
Makefile])
AC_OUTPUT

791
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#! /bin/sh
# depcomp - compile a program generating dependencies as side-effects
scriptversion=2013-05-30.07; # UTC
# Copyright (C) 1999-2014 Free Software Foundation, Inc.
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2, or (at your option)
# any later version.
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
# As a special exception to the GNU General Public License, if you
# distribute this file as part of a program that contains a
# configuration script generated by Autoconf, you may include it under
# the same distribution terms that you use for the rest of that program.
# Originally written by Alexandre Oliva <oliva@dcc.unicamp.br>.
case $1 in
'')
echo "$0: No command. Try '$0 --help' for more information." 1>&2
exit 1;
;;
-h | --h*)
cat <<\EOF
Usage: depcomp [--help] [--version] PROGRAM [ARGS]
Run PROGRAMS ARGS to compile a file, generating dependencies
as side-effects.
Environment variables:
depmode Dependency tracking mode.
source Source file read by 'PROGRAMS ARGS'.
object Object file output by 'PROGRAMS ARGS'.
DEPDIR directory where to store dependencies.
depfile Dependency file to output.
tmpdepfile Temporary file to use when outputting dependencies.
libtool Whether libtool is used (yes/no).
Report bugs to <bug-automake@gnu.org>.
EOF
exit $?
;;
-v | --v*)
echo "depcomp $scriptversion"
exit $?
;;
esac
# Get the directory component of the given path, and save it in the
# global variables '$dir'. Note that this directory component will
# be either empty or ending with a '/' character. This is deliberate.
set_dir_from ()
{
case $1 in
*/*) dir=`echo "$1" | sed -e 's|/[^/]*$|/|'`;;
*) dir=;;
esac
}
# Get the suffix-stripped basename of the given path, and save it the
# global variable '$base'.
set_base_from ()
{
base=`echo "$1" | sed -e 's|^.*/||' -e 's/\.[^.]*$//'`
}
# If no dependency file was actually created by the compiler invocation,
# we still have to create a dummy depfile, to avoid errors with the
# Makefile "include basename.Plo" scheme.
make_dummy_depfile ()
{
echo "#dummy" > "$depfile"
}
# Factor out some common post-processing of the generated depfile.
# Requires the auxiliary global variable '$tmpdepfile' to be set.
aix_post_process_depfile ()
{
# If the compiler actually managed to produce a dependency file,
# post-process it.
if test -f "$tmpdepfile"; then
# Each line is of the form 'foo.o: dependency.h'.
# Do two passes, one to just change these to
# $object: dependency.h
# and one to simply output
# dependency.h:
# which is needed to avoid the deleted-header problem.
{ sed -e "s,^.*\.[$lower]*:,$object:," < "$tmpdepfile"
sed -e "s,^.*\.[$lower]*:[$tab ]*,," -e 's,$,:,' < "$tmpdepfile"
} > "$depfile"
rm -f "$tmpdepfile"
else
make_dummy_depfile
fi
}
# A tabulation character.
tab=' '
# A newline character.
nl='
'
# Character ranges might be problematic outside the C locale.
# These definitions help.
upper=ABCDEFGHIJKLMNOPQRSTUVWXYZ
lower=abcdefghijklmnopqrstuvwxyz
digits=0123456789
alpha=${upper}${lower}
if test -z "$depmode" || test -z "$source" || test -z "$object"; then
echo "depcomp: Variables source, object and depmode must be set" 1>&2
exit 1
fi
# Dependencies for sub/bar.o or sub/bar.obj go into sub/.deps/bar.Po.
depfile=${depfile-`echo "$object" |
sed 's|[^\\/]*$|'${DEPDIR-.deps}'/&|;s|\.\([^.]*\)$|.P\1|;s|Pobj$|Po|'`}
tmpdepfile=${tmpdepfile-`echo "$depfile" | sed 's/\.\([^.]*\)$/.T\1/'`}
rm -f "$tmpdepfile"
# Avoid interferences from the environment.
gccflag= dashmflag=
# Some modes work just like other modes, but use different flags. We
# parameterize here, but still list the modes in the big case below,
# to make depend.m4 easier to write. Note that we *cannot* use a case
# here, because this file can only contain one case statement.
if test "$depmode" = hp; then
# HP compiler uses -M and no extra arg.
gccflag=-M
depmode=gcc
fi
if test "$depmode" = dashXmstdout; then
# This is just like dashmstdout with a different argument.
dashmflag=-xM
depmode=dashmstdout
fi
cygpath_u="cygpath -u -f -"
if test "$depmode" = msvcmsys; then
# This is just like msvisualcpp but w/o cygpath translation.
# Just convert the backslash-escaped backslashes to single forward
# slashes to satisfy depend.m4
cygpath_u='sed s,\\\\,/,g'
depmode=msvisualcpp
fi
if test "$depmode" = msvc7msys; then
# This is just like msvc7 but w/o cygpath translation.
# Just convert the backslash-escaped backslashes to single forward
# slashes to satisfy depend.m4
cygpath_u='sed s,\\\\,/,g'
depmode=msvc7
fi
if test "$depmode" = xlc; then
# IBM C/C++ Compilers xlc/xlC can output gcc-like dependency information.
gccflag=-qmakedep=gcc,-MF
depmode=gcc
fi
case "$depmode" in
gcc3)
## gcc 3 implements dependency tracking that does exactly what
## we want. Yay! Note: for some reason libtool 1.4 doesn't like
## it if -MD -MP comes after the -MF stuff. Hmm.
## Unfortunately, FreeBSD c89 acceptance of flags depends upon
## the command line argument order; so add the flags where they
## appear in depend2.am. Note that the slowdown incurred here
## affects only configure: in makefiles, %FASTDEP% shortcuts this.
for arg
do
case $arg in
-c) set fnord "$@" -MT "$object" -MD -MP -MF "$tmpdepfile" "$arg" ;;
*) set fnord "$@" "$arg" ;;
esac
shift # fnord
shift # $arg
done
"$@"
stat=$?
if test $stat -ne 0; then
rm -f "$tmpdepfile"
exit $stat
fi
mv "$tmpdepfile" "$depfile"
;;
gcc)
## Note that this doesn't just cater to obsosete pre-3.x GCC compilers.
## but also to in-use compilers like IMB xlc/xlC and the HP C compiler.
## (see the conditional assignment to $gccflag above).
## There are various ways to get dependency output from gcc. Here's
## why we pick this rather obscure method:
## - Don't want to use -MD because we'd like the dependencies to end
## up in a subdir. Having to rename by hand is ugly.
## (We might end up doing this anyway to support other compilers.)
## - The DEPENDENCIES_OUTPUT environment variable makes gcc act like
## -MM, not -M (despite what the docs say). Also, it might not be
## supported by the other compilers which use the 'gcc' depmode.
## - Using -M directly means running the compiler twice (even worse
## than renaming).
if test -z "$gccflag"; then
gccflag=-MD,
fi
"$@" -Wp,"$gccflag$tmpdepfile"
stat=$?
if test $stat -ne 0; then
rm -f "$tmpdepfile"
exit $stat
fi
rm -f "$depfile"
echo "$object : \\" > "$depfile"
# The second -e expression handles DOS-style file names with drive
# letters.
sed -e 's/^[^:]*: / /' \
-e 's/^['$alpha']:\/[^:]*: / /' < "$tmpdepfile" >> "$depfile"
## This next piece of magic avoids the "deleted header file" problem.
## The problem is that when a header file which appears in a .P file
## is deleted, the dependency causes make to die (because there is
## typically no way to rebuild the header). We avoid this by adding
## dummy dependencies for each header file. Too bad gcc doesn't do
## this for us directly.
## Some versions of gcc put a space before the ':'. On the theory
## that the space means something, we add a space to the output as
## well. hp depmode also adds that space, but also prefixes the VPATH
## to the object. Take care to not repeat it in the output.
## Some versions of the HPUX 10.20 sed can't process this invocation
## correctly. Breaking it into two sed invocations is a workaround.
tr ' ' "$nl" < "$tmpdepfile" \
| sed -e 's/^\\$//' -e '/^$/d' -e "s|.*$object$||" -e '/:$/d' \
| sed -e 's/$/ :/' >> "$depfile"
rm -f "$tmpdepfile"
;;
hp)
# This case exists only to let depend.m4 do its work. It works by
# looking at the text of this script. This case will never be run,
# since it is checked for above.
exit 1
;;
sgi)
if test "$libtool" = yes; then
"$@" "-Wp,-MDupdate,$tmpdepfile"
else
"$@" -MDupdate "$tmpdepfile"
fi
stat=$?
if test $stat -ne 0; then
rm -f "$tmpdepfile"
exit $stat
fi
rm -f "$depfile"
if test -f "$tmpdepfile"; then # yes, the sourcefile depend on other files
echo "$object : \\" > "$depfile"
# Clip off the initial element (the dependent). Don't try to be
# clever and replace this with sed code, as IRIX sed won't handle
# lines with more than a fixed number of characters (4096 in
# IRIX 6.2 sed, 8192 in IRIX 6.5). We also remove comment lines;
# the IRIX cc adds comments like '#:fec' to the end of the
# dependency line.
tr ' ' "$nl" < "$tmpdepfile" \
| sed -e 's/^.*\.o://' -e 's/#.*$//' -e '/^$/ d' \
| tr "$nl" ' ' >> "$depfile"
echo >> "$depfile"
# The second pass generates a dummy entry for each header file.
tr ' ' "$nl" < "$tmpdepfile" \
| sed -e 's/^.*\.o://' -e 's/#.*$//' -e '/^$/ d' -e 's/$/:/' \
>> "$depfile"
else
make_dummy_depfile
fi
rm -f "$tmpdepfile"
;;
xlc)
# This case exists only to let depend.m4 do its work. It works by
# looking at the text of this script. This case will never be run,
# since it is checked for above.
exit 1
;;
aix)
# The C for AIX Compiler uses -M and outputs the dependencies
# in a .u file. In older versions, this file always lives in the
# current directory. Also, the AIX compiler puts '$object:' at the
# start of each line; $object doesn't have directory information.
# Version 6 uses the directory in both cases.
set_dir_from "$object"
set_base_from "$object"
if test "$libtool" = yes; then
tmpdepfile1=$dir$base.u
tmpdepfile2=$base.u
tmpdepfile3=$dir.libs/$base.u
"$@" -Wc,-M
else
tmpdepfile1=$dir$base.u
tmpdepfile2=$dir$base.u
tmpdepfile3=$dir$base.u
"$@" -M
fi
stat=$?
if test $stat -ne 0; then
rm -f "$tmpdepfile1" "$tmpdepfile2" "$tmpdepfile3"
exit $stat
fi
for tmpdepfile in "$tmpdepfile1" "$tmpdepfile2" "$tmpdepfile3"
do
test -f "$tmpdepfile" && break
done
aix_post_process_depfile
;;
tcc)
# tcc (Tiny C Compiler) understand '-MD -MF file' since version 0.9.26
# FIXME: That version still under development at the moment of writing.
# Make that this statement remains true also for stable, released
# versions.
# It will wrap lines (doesn't matter whether long or short) with a
# trailing '\', as in:
#
# foo.o : \
# foo.c \
# foo.h \
#
# It will put a trailing '\' even on the last line, and will use leading
# spaces rather than leading tabs (at least since its commit 0394caf7
# "Emit spaces for -MD").
"$@" -MD -MF "$tmpdepfile"
stat=$?
if test $stat -ne 0; then
rm -f "$tmpdepfile"
exit $stat
fi
rm -f "$depfile"
# Each non-empty line is of the form 'foo.o : \' or ' dep.h \'.
# We have to change lines of the first kind to '$object: \'.
sed -e "s|.*:|$object :|" < "$tmpdepfile" > "$depfile"
# And for each line of the second kind, we have to emit a 'dep.h:'
# dummy dependency, to avoid the deleted-header problem.
sed -n -e 's|^ *\(.*\) *\\$|\1:|p' < "$tmpdepfile" >> "$depfile"
rm -f "$tmpdepfile"
;;
## The order of this option in the case statement is important, since the
## shell code in configure will try each of these formats in the order
## listed in this file. A plain '-MD' option would be understood by many
## compilers, so we must ensure this comes after the gcc and icc options.
pgcc)
# Portland's C compiler understands '-MD'.
# Will always output deps to 'file.d' where file is the root name of the
# source file under compilation, even if file resides in a subdirectory.
# The object file name does not affect the name of the '.d' file.
# pgcc 10.2 will output
# foo.o: sub/foo.c sub/foo.h
# and will wrap long lines using '\' :
# foo.o: sub/foo.c ... \
# sub/foo.h ... \
# ...
set_dir_from "$object"
# Use the source, not the object, to determine the base name, since
# that's sadly what pgcc will do too.
set_base_from "$source"
tmpdepfile=$base.d
# For projects that build the same source file twice into different object
# files, the pgcc approach of using the *source* file root name can cause
# problems in parallel builds. Use a locking strategy to avoid stomping on
# the same $tmpdepfile.
lockdir=$base.d-lock
trap "
echo '$0: caught signal, cleaning up...' >&2
rmdir '$lockdir'
exit 1
" 1 2 13 15
numtries=100
i=$numtries
while test $i -gt 0; do
# mkdir is a portable test-and-set.
if mkdir "$lockdir" 2>/dev/null; then
# This process acquired the lock.
"$@" -MD
stat=$?
# Release the lock.
rmdir "$lockdir"
break
else
# If the lock is being held by a different process, wait
# until the winning process is done or we timeout.
while test -d "$lockdir" && test $i -gt 0; do
sleep 1
i=`expr $i - 1`
done
fi
i=`expr $i - 1`
done
trap - 1 2 13 15
if test $i -le 0; then
echo "$0: failed to acquire lock after $numtries attempts" >&2
echo "$0: check lockdir '$lockdir'" >&2
exit 1
fi
if test $stat -ne 0; then
rm -f "$tmpdepfile"
exit $stat
fi
rm -f "$depfile"
# Each line is of the form `foo.o: dependent.h',
# or `foo.o: dep1.h dep2.h \', or ` dep3.h dep4.h \'.
# Do two passes, one to just change these to
# `$object: dependent.h' and one to simply `dependent.h:'.
sed "s,^[^:]*:,$object :," < "$tmpdepfile" > "$depfile"
# Some versions of the HPUX 10.20 sed can't process this invocation
# correctly. Breaking it into two sed invocations is a workaround.
sed 's,^[^:]*: \(.*\)$,\1,;s/^\\$//;/^$/d;/:$/d' < "$tmpdepfile" \
| sed -e 's/$/ :/' >> "$depfile"
rm -f "$tmpdepfile"
;;
hp2)
# The "hp" stanza above does not work with aCC (C++) and HP's ia64
# compilers, which have integrated preprocessors. The correct option
# to use with these is +Maked; it writes dependencies to a file named
# 'foo.d', which lands next to the object file, wherever that
# happens to be.
# Much of this is similar to the tru64 case; see comments there.
set_dir_from "$object"
set_base_from "$object"
if test "$libtool" = yes; then
tmpdepfile1=$dir$base.d
tmpdepfile2=$dir.libs/$base.d
"$@" -Wc,+Maked
else
tmpdepfile1=$dir$base.d
tmpdepfile2=$dir$base.d
"$@" +Maked
fi
stat=$?
if test $stat -ne 0; then
rm -f "$tmpdepfile1" "$tmpdepfile2"
exit $stat
fi
for tmpdepfile in "$tmpdepfile1" "$tmpdepfile2"
do
test -f "$tmpdepfile" && break
done
if test -f "$tmpdepfile"; then
sed -e "s,^.*\.[$lower]*:,$object:," "$tmpdepfile" > "$depfile"
# Add 'dependent.h:' lines.
sed -ne '2,${
s/^ *//
s/ \\*$//
s/$/:/
p
}' "$tmpdepfile" >> "$depfile"
else
make_dummy_depfile
fi
rm -f "$tmpdepfile" "$tmpdepfile2"
;;
tru64)
# The Tru64 compiler uses -MD to generate dependencies as a side
# effect. 'cc -MD -o foo.o ...' puts the dependencies into 'foo.o.d'.
# At least on Alpha/Redhat 6.1, Compaq CCC V6.2-504 seems to put
# dependencies in 'foo.d' instead, so we check for that too.
# Subdirectories are respected.
set_dir_from "$object"
set_base_from "$object"
if test "$libtool" = yes; then
# Libtool generates 2 separate objects for the 2 libraries. These
# two compilations output dependencies in $dir.libs/$base.o.d and
# in $dir$base.o.d. We have to check for both files, because
# one of the two compilations can be disabled. We should prefer
# $dir$base.o.d over $dir.libs/$base.o.d because the latter is
# automatically cleaned when .libs/ is deleted, while ignoring
# the former would cause a distcleancheck panic.
tmpdepfile1=$dir$base.o.d # libtool 1.5
tmpdepfile2=$dir.libs/$base.o.d # Likewise.
tmpdepfile3=$dir.libs/$base.d # Compaq CCC V6.2-504
"$@" -Wc,-MD
else
tmpdepfile1=$dir$base.d
tmpdepfile2=$dir$base.d
tmpdepfile3=$dir$base.d
"$@" -MD
fi
stat=$?
if test $stat -ne 0; then
rm -f "$tmpdepfile1" "$tmpdepfile2" "$tmpdepfile3"
exit $stat
fi
for tmpdepfile in "$tmpdepfile1" "$tmpdepfile2" "$tmpdepfile3"
do
test -f "$tmpdepfile" && break
done
# Same post-processing that is required for AIX mode.
aix_post_process_depfile
;;
msvc7)
if test "$libtool" = yes; then
showIncludes=-Wc,-showIncludes
else
showIncludes=-showIncludes
fi
"$@" $showIncludes > "$tmpdepfile"
stat=$?
grep -v '^Note: including file: ' "$tmpdepfile"
if test $stat -ne 0; then
rm -f "$tmpdepfile"
exit $stat
fi
rm -f "$depfile"
echo "$object : \\" > "$depfile"
# The first sed program below extracts the file names and escapes
# backslashes for cygpath. The second sed program outputs the file
# name when reading, but also accumulates all include files in the
# hold buffer in order to output them again at the end. This only
# works with sed implementations that can handle large buffers.
sed < "$tmpdepfile" -n '
/^Note: including file: *\(.*\)/ {
s//\1/
s/\\/\\\\/g
p
}' | $cygpath_u | sort -u | sed -n '
s/ /\\ /g
s/\(.*\)/'"$tab"'\1 \\/p
s/.\(.*\) \\/\1:/
H
$ {
s/.*/'"$tab"'/
G
p
}' >> "$depfile"
echo >> "$depfile" # make sure the fragment doesn't end with a backslash
rm -f "$tmpdepfile"
;;
msvc7msys)
# This case exists only to let depend.m4 do its work. It works by
# looking at the text of this script. This case will never be run,
# since it is checked for above.
exit 1
;;
#nosideeffect)
# This comment above is used by automake to tell side-effect
# dependency tracking mechanisms from slower ones.
dashmstdout)
# Important note: in order to support this mode, a compiler *must*
# always write the preprocessed file to stdout, regardless of -o.
"$@" || exit $?
# Remove the call to Libtool.
if test "$libtool" = yes; then
while test "X$1" != 'X--mode=compile'; do
shift
done
shift
fi
# Remove '-o $object'.
IFS=" "
for arg
do
case $arg in
-o)
shift
;;
$object)
shift
;;
*)
set fnord "$@" "$arg"
shift # fnord
shift # $arg
;;
esac
done
test -z "$dashmflag" && dashmflag=-M
# Require at least two characters before searching for ':'
# in the target name. This is to cope with DOS-style filenames:
# a dependency such as 'c:/foo/bar' could be seen as target 'c' otherwise.
"$@" $dashmflag |
sed "s|^[$tab ]*[^:$tab ][^:][^:]*:[$tab ]*|$object: |" > "$tmpdepfile"
rm -f "$depfile"
cat < "$tmpdepfile" > "$depfile"
# Some versions of the HPUX 10.20 sed can't process this sed invocation
# correctly. Breaking it into two sed invocations is a workaround.
tr ' ' "$nl" < "$tmpdepfile" \
| sed -e 's/^\\$//' -e '/^$/d' -e '/:$/d' \
| sed -e 's/$/ :/' >> "$depfile"
rm -f "$tmpdepfile"
;;
dashXmstdout)
# This case only exists to satisfy depend.m4. It is never actually
# run, as this mode is specially recognized in the preamble.
exit 1
;;
makedepend)
"$@" || exit $?
# Remove any Libtool call
if test "$libtool" = yes; then
while test "X$1" != 'X--mode=compile'; do
shift
done
shift
fi
# X makedepend
shift
cleared=no eat=no
for arg
do
case $cleared in
no)
set ""; shift
cleared=yes ;;
esac
if test $eat = yes; then
eat=no
continue
fi
case "$arg" in
-D*|-I*)
set fnord "$@" "$arg"; shift ;;
# Strip any option that makedepend may not understand. Remove
# the object too, otherwise makedepend will parse it as a source file.
-arch)
eat=yes ;;
-*|$object)
;;
*)
set fnord "$@" "$arg"; shift ;;
esac
done
obj_suffix=`echo "$object" | sed 's/^.*\././'`
touch "$tmpdepfile"
${MAKEDEPEND-makedepend} -o"$obj_suffix" -f"$tmpdepfile" "$@"
rm -f "$depfile"
# makedepend may prepend the VPATH from the source file name to the object.
# No need to regex-escape $object, excess matching of '.' is harmless.
sed "s|^.*\($object *:\)|\1|" "$tmpdepfile" > "$depfile"
# Some versions of the HPUX 10.20 sed can't process the last invocation
# correctly. Breaking it into two sed invocations is a workaround.
sed '1,2d' "$tmpdepfile" \
| tr ' ' "$nl" \
| sed -e 's/^\\$//' -e '/^$/d' -e '/:$/d' \
| sed -e 's/$/ :/' >> "$depfile"
rm -f "$tmpdepfile" "$tmpdepfile".bak
;;
cpp)
# Important note: in order to support this mode, a compiler *must*
# always write the preprocessed file to stdout.
"$@" || exit $?
# Remove the call to Libtool.
if test "$libtool" = yes; then
while test "X$1" != 'X--mode=compile'; do
shift
done
shift
fi
# Remove '-o $object'.
IFS=" "
for arg
do
case $arg in
-o)
shift
;;
$object)
shift
;;
*)
set fnord "$@" "$arg"
shift # fnord
shift # $arg
;;
esac
done
"$@" -E \
| sed -n -e '/^# [0-9][0-9]* "\([^"]*\)".*/ s:: \1 \\:p' \
-e '/^#line [0-9][0-9]* "\([^"]*\)".*/ s:: \1 \\:p' \
| sed '$ s: \\$::' > "$tmpdepfile"
rm -f "$depfile"
echo "$object : \\" > "$depfile"
cat < "$tmpdepfile" >> "$depfile"
sed < "$tmpdepfile" '/^$/d;s/^ //;s/ \\$//;s/$/ :/' >> "$depfile"
rm -f "$tmpdepfile"
;;
msvisualcpp)
# Important note: in order to support this mode, a compiler *must*
# always write the preprocessed file to stdout.
"$@" || exit $?
# Remove the call to Libtool.
if test "$libtool" = yes; then
while test "X$1" != 'X--mode=compile'; do
shift
done
shift
fi
IFS=" "
for arg
do
case "$arg" in
-o)
shift
;;
$object)
shift
;;
"-Gm"|"/Gm"|"-Gi"|"/Gi"|"-ZI"|"/ZI")
set fnord "$@"
shift
shift
;;
*)
set fnord "$@" "$arg"
shift
shift
;;
esac
done
"$@" -E 2>/dev/null |
sed -n '/^#line [0-9][0-9]* "\([^"]*\)"/ s::\1:p' | $cygpath_u | sort -u > "$tmpdepfile"
rm -f "$depfile"
echo "$object : \\" > "$depfile"
sed < "$tmpdepfile" -n -e 's% %\\ %g' -e '/^\(.*\)$/ s::'"$tab"'\1 \\:p' >> "$depfile"
echo "$tab" >> "$depfile"
sed < "$tmpdepfile" -n -e 's% %\\ %g' -e '/^\(.*\)$/ s::\1\::p' >> "$depfile"
rm -f "$tmpdepfile"
;;
msvcmsys)
# This case exists only to let depend.m4 do its work. It works by
# looking at the text of this script. This case will never be run,
# since it is checked for above.
exit 1
;;
none)
exec "$@"
;;
*)
echo "Unknown depmode $depmode" 1>&2
exit 1
;;
esac
exit 0
# Local Variables:
# mode: shell-script
# sh-indentation: 2
# eval: (add-hook 'write-file-hooks 'time-stamp)
# time-stamp-start: "scriptversion="
# time-stamp-format: "%:y-%02m-%02d.%02H"
# time-stamp-time-zone: "UTC"
# time-stamp-end: "; # UTC"
# End:

27
dump/Makefile.am Normal file
View File

@ -0,0 +1,27 @@
#
# Makefile.am (30.03.15)
# Automake source.
#
# Free exFAT implementation.
# Copyright (C) 2011-2018 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.
#
sbin_PROGRAMS = dumpexfat
dist_man8_MANS = dumpexfat.8
dumpexfat_SOURCES = main.c
dumpexfat_CPPFLAGS = -I$(top_srcdir)/libexfat
dumpexfat_LDADD = ../libexfat/libexfat.a

685
dump/Makefile.in Normal file
View File

@ -0,0 +1,685 @@
# Makefile.in generated by automake 1.15.1 from Makefile.am.
# @configure_input@
# Copyright (C) 1994-2017 Free Software Foundation, Inc.
# This Makefile.in is free software; the Free Software Foundation
# gives unlimited permission to copy and/or distribute it,
# with or without modifications, as long as this notice is preserved.
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY, to the extent permitted by law; without
# even the implied warranty of MERCHANTABILITY or FITNESS FOR A
# PARTICULAR PURPOSE.
@SET_MAKE@
#
# Makefile.am (30.03.15)
# Automake source.
#
# Free exFAT implementation.
# Copyright (C) 2011-2018 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.
#
VPATH = @srcdir@
am__is_gnu_make = { \
if test -z '$(MAKELEVEL)'; then \
false; \
elif test -n '$(MAKE_HOST)'; then \
true; \
elif test -n '$(MAKE_VERSION)' && test -n '$(CURDIR)'; then \
true; \
else \
false; \
fi; \
}
am__make_running_with_option = \
case $${target_option-} in \
?) ;; \
*) echo "am__make_running_with_option: internal error: invalid" \
"target option '$${target_option-}' specified" >&2; \
exit 1;; \
esac; \
has_opt=no; \
sane_makeflags=$$MAKEFLAGS; \
if $(am__is_gnu_make); then \
sane_makeflags=$$MFLAGS; \
else \
case $$MAKEFLAGS in \
*\\[\ \ ]*) \
bs=\\; \
sane_makeflags=`printf '%s\n' "$$MAKEFLAGS" \
| sed "s/$$bs$$bs[$$bs $$bs ]*//g"`;; \
esac; \
fi; \
skip_next=no; \
strip_trailopt () \
{ \
flg=`printf '%s\n' "$$flg" | sed "s/$$1.*$$//"`; \
}; \
for flg in $$sane_makeflags; do \
test $$skip_next = yes && { skip_next=no; continue; }; \
case $$flg in \
*=*|--*) continue;; \
-*I) strip_trailopt 'I'; skip_next=yes;; \
-*I?*) strip_trailopt 'I';; \
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-*O?*) strip_trailopt 'O';; \
-*l) strip_trailopt 'l'; skip_next=yes;; \
-*l?*) strip_trailopt 'l';; \
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am__make_keepgoing = (target_option=k; $(am__make_running_with_option))
pkgdatadir = $(datadir)/@PACKAGE@
pkgincludedir = $(includedir)/@PACKAGE@
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.\" Copyright (C) 2011-2018 Andrew Nayenko
.\"
.TH DUMPEXFAT 8 "July 2016"
.SH NAME
.B dumpexfat
\- dump exFAT file system
.SH SYNOPSIS
.B dumpexfat
[
.B \-s
]
[
.B \-u
]
[
.B \-f
.I file
]
[
.B \-V
]
.I device
.SH DESCRIPTION
.B dumpexfat
dumps details about exFAT file system including low-level info. All sizes are
in bytes.
.SH OPTIONS
Command line options available:
.TP
.B \-s
Dump only info from super block. May be useful for heavily corrupted file
systems.
.TP
.B \-u
Dump ranges of used sectors starting from 0 and separated with spaces. May be
useful for backup tools.
.TP
.B \-f file
Print out a list of fragments that compose the given file. Each fragment is
printed on its own line, as the start offset (in bytes) into the file system,
and the length (in bytes).
.TP
.BI \-V
Print version and copyright.
.SH EXIT CODES
Zero is returned on success. Any other code means an error.
.SH AUTHOR
Andrew Nayenko
.SH SEE ALSO
.BR mkexfatfs (8)

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/*
main.c (08.11.10)
Prints detailed information about exFAT volume.
Free exFAT implementation.
Copyright (C) 2011-2018 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.
*/
#include <exfat.h>
#include <fcntl.h>
#include <unistd.h>
#include <inttypes.h>
#include <stdio.h>
#include <string.h>
static void print_generic_info(const struct exfat_super_block* sb)
{
printf("Volume serial number 0x%08x\n",
le32_to_cpu(sb->volume_serial));
printf("FS version %hhu.%hhu\n",
sb->version.major, sb->version.minor);
printf("Sector size %10u\n",
SECTOR_SIZE(*sb));
printf("Cluster size %10u\n",
CLUSTER_SIZE(*sb));
}
static void print_sector_info(const struct exfat_super_block* sb)
{
printf("Sectors count %10"PRIu64"\n",
le64_to_cpu(sb->sector_count));
}
static void print_cluster_info(const struct exfat_super_block* sb)
{
printf("Clusters count %10u\n",
le32_to_cpu(sb->cluster_count));
}
static void print_other_info(const struct exfat_super_block* sb)
{
printf("First sector %10"PRIu64"\n",
le64_to_cpu(sb->sector_start));
printf("FAT first sector %10u\n",
le32_to_cpu(sb->fat_sector_start));
printf("FAT sectors count %10u\n",
le32_to_cpu(sb->fat_sector_count));
printf("First cluster sector %10u\n",
le32_to_cpu(sb->cluster_sector_start));
printf("Root directory cluster %10u\n",
le32_to_cpu(sb->rootdir_cluster));
printf("Volume state 0x%04hx\n",
le16_to_cpu(sb->volume_state));
printf("FATs count %10hhu\n",
sb->fat_count);
printf("Drive number 0x%02hhx\n",
sb->drive_no);
printf("Allocated space %9hhu%%\n",
sb->allocated_percent);
}
static int dump_sb(const char* spec)
{
struct exfat_dev* dev;
struct exfat_super_block sb;
dev = exfat_open(spec, EXFAT_MODE_RO);
if (dev == NULL)
return 1;
if (exfat_read(dev, &sb, sizeof(struct exfat_super_block)) < 0)
{
exfat_close(dev);
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);
return 1;
}
print_generic_info(&sb);
print_sector_info(&sb);
print_cluster_info(&sb);
print_other_info(&sb);
exfat_close(dev);
return 0;
}
static void dump_sectors(struct exfat* ef)
{
off_t a = 0, b = 0;
printf("Used sectors ");
while (exfat_find_used_sectors(ef, &a, &b) == 0)
printf(" %"PRIu64"-%"PRIu64, a, b);
puts("");
}
static int dump_full(const char* spec, bool used_sectors)
{
struct exfat ef;
uint32_t free_clusters;
uint64_t free_sectors;
if (exfat_mount(&ef, spec, "ro") != 0)
return 1;
free_clusters = exfat_count_free_clusters(&ef);
free_sectors = (uint64_t) free_clusters << ef.sb->spc_bits;
printf("Volume label %15s\n", exfat_get_label(&ef));
print_generic_info(ef.sb);
print_sector_info(ef.sb);
printf("Free sectors %10"PRIu64"\n", free_sectors);
print_cluster_info(ef.sb);
printf("Free clusters %10u\n", free_clusters);
print_other_info(ef.sb);
if (used_sectors)
dump_sectors(&ef);
exfat_unmount(&ef);
return 0;
}
static int dump_file_fragments(const char* spec, const char* path)
{
struct exfat ef;
struct exfat_node* node;
cluster_t cluster;
cluster_t next_cluster;
cluster_t fragment_start_cluster;
off_t remainder;
off_t fragment_size = 0;
int rc = 0;
if (exfat_mount(&ef, spec, "ro") != 0)
return 1;
rc = exfat_lookup(&ef, &node, path);
if (rc != 0)
{
exfat_unmount(&ef);
exfat_error("'%s': %s", path, strerror(-rc));
return 1;
}
cluster = fragment_start_cluster = node->start_cluster;
remainder = node->size;
while (remainder > 0)
{
off_t lsize;
if (CLUSTER_INVALID(*ef.sb, cluster))
{
exfat_error("'%s' has invalid cluster %#x", path, cluster);
rc = 1;
break;
}
lsize = MIN(CLUSTER_SIZE(*ef.sb), remainder);
fragment_size += lsize;
remainder -= lsize;
next_cluster = exfat_next_cluster(&ef, node, cluster);
if (next_cluster != cluster + 1 || remainder == 0)
{
/* next cluster is not contiguous or this is EOF */
printf("%"PRIu64" %"PRIu64"\n",
exfat_c2o(&ef, fragment_start_cluster), fragment_size);
/* start a new fragment */
fragment_start_cluster = next_cluster;
fragment_size = 0;
}
cluster = next_cluster;
}
exfat_put_node(&ef, node);
exfat_unmount(&ef);
return rc;
}
static void usage(const char* prog)
{
fprintf(stderr, "Usage: %s [-s] [-u] [-f file] [-V] <device>\n", prog);
exit(1);
}
int main(int argc, char* argv[])
{
int opt;
const char* spec = NULL;
bool sb_only = false;
bool used_sectors = false;
const char* file_path = NULL;
while ((opt = getopt(argc, argv, "suf:V")) != -1)
{
switch (opt)
{
case 's':
sb_only = true;
break;
case 'u':
used_sectors = true;
break;
case 'f':
file_path = optarg;
break;
case 'V':
printf("dumpexfat %s\n", VERSION);
puts("Copyright (C) 2011-2018 Andrew Nayenko");
return 0;
default:
usage(argv[0]);
}
}
if (argc - optind != 1)
usage(argv[0]);
spec = argv[optind];
if (file_path)
return dump_file_fragments(spec, file_path);
if (sb_only)
return dump_sb(spec);
return dump_full(spec, used_sectors);
}

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#
# Makefile.am (30.03.15)
# Automake source.
#
# Free exFAT implementation.
# Copyright (C) 2011-2018 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.
#
sbin_PROGRAMS = exfatfsck
dist_man8_MANS = exfatfsck.8
exfatfsck_SOURCES = main.c
exfatfsck_CPPFLAGS = -I$(top_srcdir)/libexfat
exfatfsck_LDADD = ../libexfat/libexfat.a
install-exec-hook:
ln -sf $(sbin_PROGRAMS) $(DESTDIR)$(sbindir)/fsck.exfat
uninstall-hook:
rm -f $(DESTDIR)$(sbindir)/fsck.exfat

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55
fsck/exfatfsck.8 Normal file
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@ -0,0 +1,55 @@
.\" Copyright (C) 2011-2018 Andrew Nayenko
.\"
.TH EXFATFSCK 8 "September 2018"
.SH NAME
.B exfatfsck
\- check an exFAT file system
.SH SYNOPSIS
.B exfatfsck
[
.B \-a
|
.B \-n
|
.B \-p
|
.B \-y
]
.I device
.br
.B exfatfsck
[
.B \-V
]
.SH DESCRIPTION
.B exfatfsck
checks an exFAT file system for errors. It can repair some of them.
.SH COMMAND LINE OPTIONS
Command line options available:
.TP
.BI \-a
Automatically repair the file system. No user intervention required.
.TP
.BI \-n
No-operation mode: non-interactively check for errors, but don't write
anything to the file system.
.TP
.BI \-p
Same as \fB\-a\fR for compatibility with other *fsck.
.TP
.BI \-V
Print version and copyright.
.TP
.BI \-y
Same as \fB\-a\fR for compatibility with other *fsck.
.SH EXIT CODES
Zero is returned if errors were not found. Any other code means an error.
.SH AUTHOR
Andrew Nayenko
.SH SEE ALSO
.BR fsck (8)

198
fsck/main.c Normal file
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@ -0,0 +1,198 @@
/*
main.c (02.09.09)
exFAT file system checker.
Free exFAT implementation.
Copyright (C) 2011-2018 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.
*/
#include <exfat.h>
#include <stdio.h>
#include <string.h>
#include <inttypes.h>
#include <unistd.h>
#define exfat_debug(format, ...)
uint64_t files_count, directories_count;
static int nodeck(struct exfat* ef, struct exfat_node* node)
{
const cluster_t cluster_size = CLUSTER_SIZE(*ef->sb);
cluster_t clusters = DIV_ROUND_UP(node->size, cluster_size);
cluster_t c = node->start_cluster;
int rc = 0;
while (clusters--)
{
if (CLUSTER_INVALID(*ef->sb, c))
{
char name[EXFAT_UTF8_NAME_BUFFER_MAX];
exfat_get_name(node, name);
exfat_error("file '%s' has invalid cluster 0x%x", name, c);
rc = 1;
break;
}
if (BMAP_GET(ef->cmap.chunk, c - EXFAT_FIRST_DATA_CLUSTER) == 0)
{
char name[EXFAT_UTF8_NAME_BUFFER_MAX];
exfat_get_name(node, name);
exfat_error("cluster 0x%x of file '%s' is not allocated", c, name);
rc = 1;
}
c = exfat_next_cluster(ef, node, c);
}
return rc;
}
static void dirck(struct exfat* ef, const char* path)
{
struct exfat_node* parent;
struct exfat_node* node;
struct exfat_iterator it;
int rc;
size_t path_length;
char* entry_path;
if (exfat_lookup(ef, &parent, path) != 0)
exfat_bug("directory '%s' is not found", path);
if (!(parent->attrib & EXFAT_ATTRIB_DIR))
exfat_bug("'%s' is not a directory (%#hx)", path, parent->attrib);
if (nodeck(ef, parent) != 0)
{
exfat_put_node(ef, parent);
return;
}
path_length = strlen(path);
entry_path = malloc(path_length + 1 + EXFAT_UTF8_NAME_BUFFER_MAX);
if (entry_path == NULL)
{
exfat_put_node(ef, parent);
exfat_error("out of memory");
return;
}
strcpy(entry_path, path);
strcat(entry_path, "/");
rc = exfat_opendir(ef, parent, &it);
if (rc != 0)
{
free(entry_path);
exfat_put_node(ef, parent);
return;
}
while ((node = exfat_readdir(&it)))
{
exfat_get_name(node, entry_path + path_length + 1);
exfat_debug("%s: %s, %"PRIu64" bytes, cluster %u", entry_path,
node->is_contiguous ? "contiguous" : "fragmented",
node->size, node->start_cluster);
if (node->attrib & EXFAT_ATTRIB_DIR)
{
directories_count++;
dirck(ef, entry_path);
}
else
{
files_count++;
nodeck(ef, node);
}
exfat_flush_node(ef, node);
exfat_put_node(ef, node);
}
exfat_closedir(ef, &it);
exfat_flush_node(ef, parent);
exfat_put_node(ef, parent);
free(entry_path);
}
static void fsck(struct exfat* ef, const char* spec, const char* options)
{
if (exfat_mount(ef, spec, options) != 0)
{
fputs("File system checking stopped. ", stdout);
return;
}
exfat_print_info(ef->sb, exfat_count_free_clusters(ef));
dirck(ef, "");
exfat_unmount(ef);
printf("Totally %"PRIu64" directories and %"PRIu64" files.\n",
directories_count, files_count);
fputs("File system checking finished. ", stdout);
}
static void usage(const char* prog)
{
fprintf(stderr, "Usage: %s [-a | -n | -p | -y] <device>\n", prog);
fprintf(stderr, " %s -V\n", prog);
exit(1);
}
int main(int argc, char* argv[])
{
int opt;
const char* options;
const char* spec = NULL;
struct exfat ef;
printf("exfatfsck %s\n", VERSION);
if (isatty(STDIN_FILENO))
options = "repair=1";
else
options = "repair=0";
while ((opt = getopt(argc, argv, "anpVy")) != -1)
{
switch (opt)
{
case 'a':
case 'p':
case 'y':
options = "repair=2";
break;
case 'n':
options = "repair=0,ro";
break;
case 'V':
puts("Copyright (C) 2011-2018 Andrew Nayenko");
return 0;
default:
usage(argv[0]);
break;
}
}
if (argc - optind != 1)
usage(argv[0]);
spec = argv[optind];
printf("Checking file system on %s.\n", spec);
fsck(&ef, spec, options);
if (exfat_errors != 0)
{
printf("ERRORS FOUND: %d, FIXED: %d.\n",
exfat_errors, exfat_errors_fixed);
return 1;
}
puts("No errors found.");
return 0;
}

501
install-sh Executable file
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@ -0,0 +1,501 @@
#!/bin/sh
# install - install a program, script, or datafile
scriptversion=2013-12-25.23; # UTC
# This originates from X11R5 (mit/util/scripts/install.sh), which was
# later released in X11R6 (xc/config/util/install.sh) with the
# following copyright and license.
#
# Copyright (C) 1994 X Consortium
#
# Permission is hereby granted, free of charge, to any person obtaining a copy
# of this software and associated documentation files (the "Software"), to
# deal in the Software without restriction, including without limitation the
# rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
# sell copies of the Software, and to permit persons to whom the Software is
# furnished to do so, subject to the following conditions:
#
# The above copyright notice and this permission notice shall be included in
# all copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
# X CONSORTIUM BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
# AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNEC-
# TION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
#
# Except as contained in this notice, the name of the X Consortium shall not
# be used in advertising or otherwise to promote the sale, use or other deal-
# ings in this Software without prior written authorization from the X Consor-
# tium.
#
#
# FSF changes to this file are in the public domain.
#
# Calling this script install-sh is preferred over install.sh, to prevent
# 'make' implicit rules from creating a file called install from it
# when there is no Makefile.
#
# This script is compatible with the BSD install script, but was written
# from scratch.
tab=' '
nl='
'
IFS=" $tab$nl"
# Set DOITPROG to "echo" to test this script.
doit=${DOITPROG-}
doit_exec=${doit:-exec}
# Put in absolute file names if you don't have them in your path;
# or use environment vars.
chgrpprog=${CHGRPPROG-chgrp}
chmodprog=${CHMODPROG-chmod}
chownprog=${CHOWNPROG-chown}
cmpprog=${CMPPROG-cmp}
cpprog=${CPPROG-cp}
mkdirprog=${MKDIRPROG-mkdir}
mvprog=${MVPROG-mv}
rmprog=${RMPROG-rm}
stripprog=${STRIPPROG-strip}
posix_mkdir=
# Desired mode of installed file.
mode=0755
chgrpcmd=
chmodcmd=$chmodprog
chowncmd=
mvcmd=$mvprog
rmcmd="$rmprog -f"
stripcmd=
src=
dst=
dir_arg=
dst_arg=
copy_on_change=false
is_target_a_directory=possibly
usage="\
Usage: $0 [OPTION]... [-T] SRCFILE DSTFILE
or: $0 [OPTION]... SRCFILES... DIRECTORY
or: $0 [OPTION]... -t DIRECTORY SRCFILES...
or: $0 [OPTION]... -d DIRECTORIES...
In the 1st form, copy SRCFILE to DSTFILE.
In the 2nd and 3rd, copy all SRCFILES to DIRECTORY.
In the 4th, create DIRECTORIES.
Options:
--help display this help and exit.
--version display version info and exit.
-c (ignored)
-C install only if different (preserve the last data modification time)
-d create directories instead of installing files.
-g GROUP $chgrpprog installed files to GROUP.
-m MODE $chmodprog installed files to MODE.
-o USER $chownprog installed files to USER.
-s $stripprog installed files.
-t DIRECTORY install into DIRECTORY.
-T report an error if DSTFILE is a directory.
Environment variables override the default commands:
CHGRPPROG CHMODPROG CHOWNPROG CMPPROG CPPROG MKDIRPROG MVPROG
RMPROG STRIPPROG
"
while test $# -ne 0; do
case $1 in
-c) ;;
-C) copy_on_change=true;;
-d) dir_arg=true;;
-g) chgrpcmd="$chgrpprog $2"
shift;;
--help) echo "$usage"; exit $?;;
-m) mode=$2
case $mode in
*' '* | *"$tab"* | *"$nl"* | *'*'* | *'?'* | *'['*)
echo "$0: invalid mode: $mode" >&2
exit 1;;
esac
shift;;
-o) chowncmd="$chownprog $2"
shift;;
-s) stripcmd=$stripprog;;
-t)
is_target_a_directory=always
dst_arg=$2
# Protect names problematic for 'test' and other utilities.
case $dst_arg in
-* | [=\(\)!]) dst_arg=./$dst_arg;;
esac
shift;;
-T) is_target_a_directory=never;;
--version) echo "$0 $scriptversion"; exit $?;;
--) shift
break;;
-*) echo "$0: invalid option: $1" >&2
exit 1;;
*) break;;
esac
shift
done
# We allow the use of options -d and -T together, by making -d
# take the precedence; this is for compatibility with GNU install.
if test -n "$dir_arg"; then
if test -n "$dst_arg"; then
echo "$0: target directory not allowed when installing a directory." >&2
exit 1
fi
fi
if test $# -ne 0 && test -z "$dir_arg$dst_arg"; then
# When -d is used, all remaining arguments are directories to create.
# When -t is used, the destination is already specified.
# Otherwise, the last argument is the destination. Remove it from $@.
for arg
do
if test -n "$dst_arg"; then
# $@ is not empty: it contains at least $arg.
set fnord "$@" "$dst_arg"
shift # fnord
fi
shift # arg
dst_arg=$arg
# Protect names problematic for 'test' and other utilities.
case $dst_arg in
-* | [=\(\)!]) dst_arg=./$dst_arg;;
esac
done
fi
if test $# -eq 0; then
if test -z "$dir_arg"; then
echo "$0: no input file specified." >&2
exit 1
fi
# It's OK to call 'install-sh -d' without argument.
# This can happen when creating conditional directories.
exit 0
fi
if test -z "$dir_arg"; then
if test $# -gt 1 || test "$is_target_a_directory" = always; then
if test ! -d "$dst_arg"; then
echo "$0: $dst_arg: Is not a directory." >&2
exit 1
fi
fi
fi
if test -z "$dir_arg"; then
do_exit='(exit $ret); exit $ret'
trap "ret=129; $do_exit" 1
trap "ret=130; $do_exit" 2
trap "ret=141; $do_exit" 13
trap "ret=143; $do_exit" 15
# Set umask so as not to create temps with too-generous modes.
# However, 'strip' requires both read and write access to temps.
case $mode in
# Optimize common cases.
*644) cp_umask=133;;
*755) cp_umask=22;;
*[0-7])
if test -z "$stripcmd"; then
u_plus_rw=
else
u_plus_rw='% 200'
fi
cp_umask=`expr '(' 777 - $mode % 1000 ')' $u_plus_rw`;;
*)
if test -z "$stripcmd"; then
u_plus_rw=
else
u_plus_rw=,u+rw
fi
cp_umask=$mode$u_plus_rw;;
esac
fi
for src
do
# Protect names problematic for 'test' and other utilities.
case $src in
-* | [=\(\)!]) src=./$src;;
esac
if test -n "$dir_arg"; then
dst=$src
dstdir=$dst
test -d "$dstdir"
dstdir_status=$?
else
# Waiting for this to be detected by the "$cpprog $src $dsttmp" command
# might cause directories to be created, which would be especially bad
# if $src (and thus $dsttmp) contains '*'.
if test ! -f "$src" && test ! -d "$src"; then
echo "$0: $src does not exist." >&2
exit 1
fi
if test -z "$dst_arg"; then
echo "$0: no destination specified." >&2
exit 1
fi
dst=$dst_arg
# If destination is a directory, append the input filename; won't work
# if double slashes aren't ignored.
if test -d "$dst"; then
if test "$is_target_a_directory" = never; then
echo "$0: $dst_arg: Is a directory" >&2
exit 1
fi
dstdir=$dst
dst=$dstdir/`basename "$src"`
dstdir_status=0
else
dstdir=`dirname "$dst"`
test -d "$dstdir"
dstdir_status=$?
fi
fi
obsolete_mkdir_used=false
if test $dstdir_status != 0; then
case $posix_mkdir in
'')
# Create intermediate dirs using mode 755 as modified by the umask.
# This is like FreeBSD 'install' as of 1997-10-28.
umask=`umask`
case $stripcmd.$umask in
# Optimize common cases.
*[2367][2367]) mkdir_umask=$umask;;
.*0[02][02] | .[02][02] | .[02]) mkdir_umask=22;;
*[0-7])
mkdir_umask=`expr $umask + 22 \
- $umask % 100 % 40 + $umask % 20 \
- $umask % 10 % 4 + $umask % 2
`;;
*) mkdir_umask=$umask,go-w;;
esac
# With -d, create the new directory with the user-specified mode.
# Otherwise, rely on $mkdir_umask.
if test -n "$dir_arg"; then
mkdir_mode=-m$mode
else
mkdir_mode=
fi
posix_mkdir=false
case $umask in
*[123567][0-7][0-7])
# POSIX mkdir -p sets u+wx bits regardless of umask, which
# is incompatible with FreeBSD 'install' when (umask & 300) != 0.
;;
*)
tmpdir=${TMPDIR-/tmp}/ins$RANDOM-$$
trap 'ret=$?; rmdir "$tmpdir/d" "$tmpdir" 2>/dev/null; exit $ret' 0
if (umask $mkdir_umask &&
exec $mkdirprog $mkdir_mode -p -- "$tmpdir/d") >/dev/null 2>&1
then
if test -z "$dir_arg" || {
# Check for POSIX incompatibilities with -m.
# HP-UX 11.23 and IRIX 6.5 mkdir -m -p sets group- or
# other-writable bit of parent directory when it shouldn't.
# FreeBSD 6.1 mkdir -m -p sets mode of existing directory.
ls_ld_tmpdir=`ls -ld "$tmpdir"`
case $ls_ld_tmpdir in
d????-?r-*) different_mode=700;;
d????-?--*) different_mode=755;;
*) false;;
esac &&
$mkdirprog -m$different_mode -p -- "$tmpdir" && {
ls_ld_tmpdir_1=`ls -ld "$tmpdir"`
test "$ls_ld_tmpdir" = "$ls_ld_tmpdir_1"
}
}
then posix_mkdir=:
fi
rmdir "$tmpdir/d" "$tmpdir"
else
# Remove any dirs left behind by ancient mkdir implementations.
rmdir ./$mkdir_mode ./-p ./-- 2>/dev/null
fi
trap '' 0;;
esac;;
esac
if
$posix_mkdir && (
umask $mkdir_umask &&
$doit_exec $mkdirprog $mkdir_mode -p -- "$dstdir"
)
then :
else
# The umask is ridiculous, or mkdir does not conform to POSIX,
# or it failed possibly due to a race condition. Create the
# directory the slow way, step by step, checking for races as we go.
case $dstdir in
/*) prefix='/';;
[-=\(\)!]*) prefix='./';;
*) prefix='';;
esac
oIFS=$IFS
IFS=/
set -f
set fnord $dstdir
shift
set +f
IFS=$oIFS
prefixes=
for d
do
test X"$d" = X && continue
prefix=$prefix$d
if test -d "$prefix"; then
prefixes=
else
if $posix_mkdir; then
(umask=$mkdir_umask &&
$doit_exec $mkdirprog $mkdir_mode -p -- "$dstdir") && break
# Don't fail if two instances are running concurrently.
test -d "$prefix" || exit 1
else
case $prefix in
*\'*) qprefix=`echo "$prefix" | sed "s/'/'\\\\\\\\''/g"`;;
*) qprefix=$prefix;;
esac
prefixes="$prefixes '$qprefix'"
fi
fi
prefix=$prefix/
done
if test -n "$prefixes"; then
# Don't fail if two instances are running concurrently.
(umask $mkdir_umask &&
eval "\$doit_exec \$mkdirprog $prefixes") ||
test -d "$dstdir" || exit 1
obsolete_mkdir_used=true
fi
fi
fi
if test -n "$dir_arg"; then
{ test -z "$chowncmd" || $doit $chowncmd "$dst"; } &&
{ test -z "$chgrpcmd" || $doit $chgrpcmd "$dst"; } &&
{ test "$obsolete_mkdir_used$chowncmd$chgrpcmd" = false ||
test -z "$chmodcmd" || $doit $chmodcmd $mode "$dst"; } || exit 1
else
# Make a couple of temp file names in the proper directory.
dsttmp=$dstdir/_inst.$$_
rmtmp=$dstdir/_rm.$$_
# Trap to clean up those temp files at exit.
trap 'ret=$?; rm -f "$dsttmp" "$rmtmp" && exit $ret' 0
# Copy the file name to the temp name.
(umask $cp_umask && $doit_exec $cpprog "$src" "$dsttmp") &&
# and set any options; do chmod last to preserve setuid bits.
#
# If any of these fail, we abort the whole thing. If we want to
# ignore errors from any of these, just make sure not to ignore
# errors from the above "$doit $cpprog $src $dsttmp" command.
#
{ test -z "$chowncmd" || $doit $chowncmd "$dsttmp"; } &&
{ test -z "$chgrpcmd" || $doit $chgrpcmd "$dsttmp"; } &&
{ test -z "$stripcmd" || $doit $stripcmd "$dsttmp"; } &&
{ test -z "$chmodcmd" || $doit $chmodcmd $mode "$dsttmp"; } &&
# If -C, don't bother to copy if it wouldn't change the file.
if $copy_on_change &&
old=`LC_ALL=C ls -dlL "$dst" 2>/dev/null` &&
new=`LC_ALL=C ls -dlL "$dsttmp" 2>/dev/null` &&
set -f &&
set X $old && old=:$2:$4:$5:$6 &&
set X $new && new=:$2:$4:$5:$6 &&
set +f &&
test "$old" = "$new" &&
$cmpprog "$dst" "$dsttmp" >/dev/null 2>&1
then
rm -f "$dsttmp"
else
# Rename the file to the real destination.
$doit $mvcmd -f "$dsttmp" "$dst" 2>/dev/null ||
# The rename failed, perhaps because mv can't rename something else
# to itself, or perhaps because mv is so ancient that it does not
# support -f.
{
# Now remove or move aside any old file at destination location.
# We try this two ways since rm can't unlink itself on some
# systems and the destination file might be busy for other
# reasons. In this case, the final cleanup might fail but the new
# file should still install successfully.
{
test ! -f "$dst" ||
$doit $rmcmd -f "$dst" 2>/dev/null ||
{ $doit $mvcmd -f "$dst" "$rmtmp" 2>/dev/null &&
{ $doit $rmcmd -f "$rmtmp" 2>/dev/null; :; }
} ||
{ echo "$0: cannot unlink or rename $dst" >&2
(exit 1); exit 1
}
} &&
# Now rename the file to the real destination.
$doit $mvcmd "$dsttmp" "$dst"
}
fi || exit 1
trap '' 0
fi
done
# Local variables:
# eval: (add-hook 'write-file-hooks 'time-stamp)
# time-stamp-start: "scriptversion="
# time-stamp-format: "%:y-%02m-%02d.%02H"
# time-stamp-time-zone: "UTC"
# time-stamp-end: "; # UTC"
# End:

27
label/Makefile.am Normal file
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#
# Makefile.am (30.03.15)
# Automake source.
#
# Free exFAT implementation.
# Copyright (C) 2011-2018 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.
#
sbin_PROGRAMS = exfatlabel
dist_man8_MANS = exfatlabel.8
exfatlabel_SOURCES = main.c
exfatlabel_CPPFLAGS = -I$(top_srcdir)/libexfat
exfatlabel_LDADD = ../libexfat/libexfat.a

685
label/Makefile.in Normal file
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@ -0,0 +1,685 @@
# Makefile.in generated by automake 1.15.1 from Makefile.am.
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# This program is distributed in the hope that it will be useful,
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# GNU General Public License for more details.
#
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.\" Copyright (C) 2011-2018 Andrew Nayenko
.\"
.TH EXFATLABEL 8 "September 2017"
.SH NAME
.B exfatlabel
\- get or set an exFAT file system label
.SH SYNOPSIS
.B exfatlabel
[
.B \-V
]
.I device
[
.I label
]
.SH DESCRIPTION
.B exfatlabel
reads or changes an exFAT file system label (volume name).
If
.I label
argument is present,
.B exfatlabel
sets the new volume name. Empty label ('') removes volume name. Label can be
up to 15 characters. This limit is shorter if characters beyond Unicode BMP
are used because internally label is stored in UTF-16.
If
.I label
argument is omitted,
.B exfatlabel
just prints current volume name.
.SH COMMAND LINE OPTIONS
Command line options available:
.TP
.BI \-V
Print version and copyright.
.SH EXIT CODES
Zero is returned on success. Any other code means an error.
.SH AUTHOR
Andrew Nayenko
.SH SEE ALSO
.BR mkexfatfs (8)

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/*
main.c (20.01.11)
Prints or changes exFAT volume label.
Free exFAT implementation.
Copyright (C) 2011-2018 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.
*/
#include <exfat.h>
#include <stdio.h>
#include <string.h>
int main(int argc, char* argv[])
{
char** pp;
struct exfat ef;
int rc = 0;
for (pp = argv + 1; *pp; pp++)
if (strcmp(*pp, "-V") == 0)
{
printf("exfatlabel %s\n", VERSION);
puts("Copyright (C) 2011-2018 Andrew Nayenko");
return 0;
}
if (argc != 2 && argc != 3)
{
fprintf(stderr, "Usage: %s [-V] <device> [label]\n", argv[0]);
return 1;
}
if (argv[2])
{
if (exfat_mount(&ef, argv[1], "") != 0)
return 1;
rc = (exfat_set_label(&ef, argv[2]) != 0);
}
else
{
if (exfat_mount(&ef, argv[1], "ro") != 0)
return 1;
puts(exfat_get_label(&ef));
}
exfat_unmount(&ef);
return rc;
}

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#
# Makefile.am (30.03.15)
# Automake source.
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# Free exFAT implementation.
# Copyright (C) 2010-2018 Andrew Nayenko
#
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# 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,
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
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# with this program; if not, write to the Free Software Foundation, Inc.,
# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
#
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log.c \
lookup.c \
mount.c \
node.c \
platform.h \
repair.c \
time.c \
utf.c \
utils.c

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/*
byteorder.h (12.01.10)
Endianness stuff. exFAT uses little-endian byte order.
Free exFAT implementation.
Copyright (C) 2010-2018 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 BYTEORDER_H_INCLUDED
#define BYTEORDER_H_INCLUDED
#include "platform.h"
#include <stdint.h>
#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 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; }
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; }
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 = {exfat_bswap16(v)}; return t; }
static inline le32_t cpu_to_le32(uint32_t v)
{ le32_t t = {exfat_bswap32(v)}; return t; }
static inline le64_t cpu_to_le64(uint64_t v)
{ le64_t t = {exfat_bswap64(v)}; return t; }
typedef unsigned char bitmap_t;
#else
#error Wow! You have a PDP machine?!
#endif
#endif /* ifndef BYTEORDER_H_INCLUDED */

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/*
cluster.c (03.09.09)
exFAT file system implementation library.
Free exFAT implementation.
Copyright (C) 2010-2018 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.
*/
#include "exfat.h"
#include <errno.h>
#include <string.h>
#include <inttypes.h>
/*
* Sector to absolute offset.
*/
static off_t s2o(const struct exfat* ef, off_t sector)
{
return sector << ef->sb->sector_bits;
}
/*
* Cluster to sector.
*/
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) +
((off_t) (cluster - EXFAT_FIRST_DATA_CLUSTER) << ef->sb->spc_bits);
}
/*
* Cluster to absolute offset.
*/
off_t exfat_c2o(const struct exfat* ef, cluster_t cluster)
{
return s2o(ef, c2s(ef, cluster));
}
/*
* Sector to cluster.
*/
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;
}
/*
* Size in bytes to size in clusters (rounded upwards).
*/
static uint32_t bytes2clusters(const struct exfat* ef, uint64_t bytes)
{
uint64_t cluster_size = CLUSTER_SIZE(*ef->sb);
return DIV_ROUND_UP(bytes, cluster_size);
}
cluster_t exfat_next_cluster(const struct exfat* ef,
const struct exfat_node* node, cluster_t cluster)
{
le32_t next;
off_t fat_offset;
if (cluster < EXFAT_FIRST_DATA_CLUSTER)
exfat_bug("bad cluster 0x%x", cluster);
if (node->is_contiguous)
return cluster + 1;
fat_offset = s2o(ef, le32_to_cpu(ef->sb->fat_sector_start))
+ cluster * sizeof(cluster_t);
if (exfat_pread(ef->dev, &next, sizeof(next), fat_offset) < 0)
return EXFAT_CLUSTER_BAD; /* the caller should handle this and print
appropriate error message */
return le32_to_cpu(next);
}
cluster_t exfat_advance_cluster(const struct exfat* ef,
struct exfat_node* node, uint32_t count)
{
uint32_t i;
if (node->fptr_index > count)
{
node->fptr_index = 0;
node->fptr_cluster = node->start_cluster;
}
for (i = node->fptr_index; i < count; i++)
{
node->fptr_cluster = exfat_next_cluster(ef, node, node->fptr_cluster);
if (CLUSTER_INVALID(*ef->sb, node->fptr_cluster))
break; /* the caller should handle this and print appropriate
error message */
}
node->fptr_index = count;
return node->fptr_cluster;
}
static cluster_t find_bit_and_set(bitmap_t* bitmap, size_t start, size_t end)
{
const size_t start_index = start / sizeof(bitmap_t) / 8;
const size_t end_index = DIV_ROUND_UP(end, sizeof(bitmap_t) * 8);
size_t i;
size_t start_bitindex;
size_t end_bitindex;
size_t c;
for (i = start_index; i < end_index; i++)
{
if (bitmap[i] == ~((bitmap_t) 0))
continue;
start_bitindex = MAX(i * sizeof(bitmap_t) * 8, start);
end_bitindex = MIN((i + 1) * sizeof(bitmap_t) * 8, end);
for (c = start_bitindex; c < end_bitindex; c++)
if (BMAP_GET(bitmap, c) == 0)
{
BMAP_SET(bitmap, c);
return c + EXFAT_FIRST_DATA_CLUSTER;
}
}
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)
{
if (exfat_pwrite(ef->dev, ef->cmap.chunk,
BMAP_SIZE(ef->cmap.chunk_size),
exfat_c2o(ef, ef->cmap.start_cluster)) < 0)
{
exfat_error("failed to write clusters bitmap");
return -EIO;
}
ef->cmap.dirty = false;
}
return 0;
}
static bool set_next_cluster(const struct exfat* ef, bool contiguous,
cluster_t current, cluster_t next)
{
off_t fat_offset;
le32_t next_le32;
if (contiguous)
return true;
fat_offset = s2o(ef, le32_to_cpu(ef->sb->fat_sector_start))
+ current * sizeof(cluster_t);
next_le32 = cpu_to_le32(next);
if (exfat_pwrite(ef->dev, &next_le32, sizeof(next_le32), fat_offset) < 0)
{
exfat_error("failed to write the next cluster %#x after %#x", next,
current);
return false;
}
return true;
}
static cluster_t allocate_cluster(struct exfat* ef, cluster_t hint)
{
cluster_t cluster;
hint -= EXFAT_FIRST_DATA_CLUSTER;
if (hint >= ef->cmap.chunk_size)
hint = 0;
cluster = find_bit_and_set(ef->cmap.chunk, hint, ef->cmap.chunk_size);
if (cluster == EXFAT_CLUSTER_END)
cluster = find_bit_and_set(ef->cmap.chunk, 0, hint);
if (cluster == EXFAT_CLUSTER_END)
{
exfat_error("no free space left");
return EXFAT_CLUSTER_END;
}
ef->cmap.dirty = true;
return cluster;
}
static void free_cluster(struct exfat* ef, cluster_t cluster)
{
if (cluster - EXFAT_FIRST_DATA_CLUSTER >= ef->cmap.size)
exfat_bug("caller must check cluster validity (%#x, %#x)", cluster,
ef->cmap.size);
BMAP_CLR(ef->cmap.chunk, cluster - EXFAT_FIRST_DATA_CLUSTER);
ef->cmap.dirty = true;
}
static bool make_noncontiguous(const struct exfat* ef, cluster_t first,
cluster_t last)
{
cluster_t c;
for (c = first; c < last; c++)
if (!set_next_cluster(ef, false, c, c + 1))
return false;
return true;
}
static int shrink_file(struct exfat* ef, struct exfat_node* node,
uint32_t current, uint32_t difference);
static int grow_file(struct exfat* ef, struct exfat_node* node,
uint32_t current, uint32_t difference)
{
cluster_t previous;
cluster_t next;
uint32_t allocated = 0;
if (difference == 0)
exfat_bug("zero clusters count passed");
if (node->start_cluster != EXFAT_CLUSTER_FREE)
{
/* get the last cluster of the file */
previous = exfat_advance_cluster(ef, node, current - 1);
if (CLUSTER_INVALID(*ef->sb, previous))
{
exfat_error("invalid cluster 0x%x while growing", previous);
return -EIO;
}
}
else
{
if (node->fptr_index != 0)
exfat_bug("non-zero pointer index (%u)", node->fptr_index);
/* file does not have clusters (i.e. is empty), allocate
the first one for it */
previous = allocate_cluster(ef, 0);
if (CLUSTER_INVALID(*ef->sb, previous))
return -ENOSPC;
node->fptr_cluster = node->start_cluster = previous;
allocated = 1;
/* file consists of only one cluster, so it's contiguous */
node->is_contiguous = true;
}
while (allocated < difference)
{
next = allocate_cluster(ef, previous + 1);
if (CLUSTER_INVALID(*ef->sb, next))
{
if (allocated != 0)
shrink_file(ef, node, current + allocated, allocated);
return -ENOSPC;
}
if (next != previous - 1 && node->is_contiguous)
{
/* it's a pity, but we are not able to keep the file contiguous
anymore */
if (!make_noncontiguous(ef, node->start_cluster, previous))
return -EIO;
node->is_contiguous = false;
node->is_dirty = true;
}
if (!set_next_cluster(ef, node->is_contiguous, previous, next))
return -EIO;
previous = next;
allocated++;
}
if (!set_next_cluster(ef, node->is_contiguous, previous,
EXFAT_CLUSTER_END))
return -EIO;
return 0;
}
static int shrink_file(struct exfat* ef, struct exfat_node* node,
uint32_t current, uint32_t difference)
{
cluster_t previous;
cluster_t next;
if (difference == 0)
exfat_bug("zero difference passed");
if (node->start_cluster == EXFAT_CLUSTER_FREE)
exfat_bug("unable to shrink empty file (%u clusters)", current);
if (current < difference)
exfat_bug("file underflow (%u < %u)", current, difference);
/* crop the file */
if (current > difference)
{
cluster_t last = exfat_advance_cluster(ef, node,
current - difference - 1);
if (CLUSTER_INVALID(*ef->sb, last))
{
exfat_error("invalid cluster 0x%x while shrinking", last);
return -EIO;
}
previous = exfat_next_cluster(ef, node, last);
if (!set_next_cluster(ef, node->is_contiguous, last,
EXFAT_CLUSTER_END))
return -EIO;
}
else
{
previous = node->start_cluster;
node->start_cluster = EXFAT_CLUSTER_FREE;
node->is_dirty = true;
}
node->fptr_index = 0;
node->fptr_cluster = node->start_cluster;
/* free remaining clusters */
while (difference--)
{
if (CLUSTER_INVALID(*ef->sb, previous))
{
exfat_error("invalid cluster 0x%x while freeing after shrink",
previous);
return -EIO;
}
next = exfat_next_cluster(ef, node, previous);
if (!set_next_cluster(ef, node->is_contiguous, previous,
EXFAT_CLUSTER_FREE))
return -EIO;
free_cluster(ef, previous);
previous = next;
}
return 0;
}
static bool erase_raw(struct exfat* ef, size_t size, off_t offset)
{
if (exfat_pwrite(ef->dev, ef->zero_cluster, size, offset) < 0)
{
exfat_error("failed to erase %zu bytes at %"PRId64, size, offset);
return false;
}
return true;
}
static int erase_range(struct exfat* ef, struct exfat_node* node,
uint64_t begin, uint64_t end)
{
uint64_t cluster_boundary;
cluster_t cluster;
if (begin >= end)
return 0;
cluster_boundary = (begin | (CLUSTER_SIZE(*ef->sb) - 1)) + 1;
cluster = exfat_advance_cluster(ef, node,
begin / CLUSTER_SIZE(*ef->sb));
if (CLUSTER_INVALID(*ef->sb, cluster))
{
exfat_error("invalid cluster 0x%x while erasing", cluster);
return -EIO;
}
/* erase from the beginning to the closest cluster boundary */
if (!erase_raw(ef, MIN(cluster_boundary, end) - begin,
exfat_c2o(ef, cluster) + begin % CLUSTER_SIZE(*ef->sb)))
return -EIO;
/* erase whole clusters */
while (cluster_boundary < end)
{
cluster = exfat_next_cluster(ef, node, cluster);
/* the cluster cannot be invalid because we have just allocated it */
if (CLUSTER_INVALID(*ef->sb, cluster))
exfat_bug("invalid cluster 0x%x after allocation", cluster);
if (!erase_raw(ef, CLUSTER_SIZE(*ef->sb), exfat_c2o(ef, cluster)))
return -EIO;
cluster_boundary += CLUSTER_SIZE(*ef->sb);
}
return 0;
}
int exfat_truncate(struct exfat* ef, struct exfat_node* node, uint64_t size,
bool erase)
{
uint32_t c1 = bytes2clusters(ef, node->size);
uint32_t c2 = bytes2clusters(ef, size);
int rc = 0;
if (node->references == 0 && node->parent)
exfat_bug("no references, node changes can be lost");
if (node->size == size)
return 0;
if (c1 < c2)
rc = grow_file(ef, node, c1, c2 - c1);
else if (c1 > c2)
rc = shrink_file(ef, node, c1, c1 - c2);
if (rc != 0)
return rc;
if (erase)
{
rc = erase_range(ef, node, node->size, size);
if (rc != 0)
return rc;
}
exfat_update_mtime(node);
node->size = size;
node->is_dirty = true;
return 0;
}
uint32_t exfat_count_free_clusters(const struct exfat* ef)
{
uint32_t free_clusters = 0;
uint32_t i;
for (i = 0; i < ef->cmap.size; i++)
if (BMAP_GET(ef->cmap.chunk, i) == 0)
free_clusters++;
return free_clusters;
}
static int find_used_clusters(const struct exfat* ef,
cluster_t* a, cluster_t* b)
{
const cluster_t end = le32_to_cpu(ef->sb->cluster_count);
/* find first used cluster */
for (*a = *b + 1; *a < end; (*a)++)
if (BMAP_GET(ef->cmap.chunk, *a - EXFAT_FIRST_DATA_CLUSTER))
break;
if (*a >= end)
return 1;
/* find last contiguous used cluster */
for (*b = *a; *b < end; (*b)++)
if (BMAP_GET(ef->cmap.chunk, *b - EXFAT_FIRST_DATA_CLUSTER) == 0)
{
(*b)--;
break;
}
return 0;
}
int exfat_find_used_sectors(const struct exfat* ef, off_t* a, off_t* b)
{
cluster_t ca, cb;
if (*a == 0 && *b == 0)
ca = cb = EXFAT_FIRST_DATA_CLUSTER - 1;
else
{
ca = s2c(ef, *a);
cb = s2c(ef, *b);
}
if (find_used_clusters(ef, &ca, &cb) != 0)
return 1;
if (*a != 0 || *b != 0)
*a = c2s(ef, ca);
*b = c2s(ef, cb) + (CLUSTER_SIZE(*ef->sb) - 1) / SECTOR_SIZE(*ef->sb);
return 0;
}

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/*
compiler.h (09.06.13)
Compiler-specific definitions. Note that unknown compiler is not a
showstopper.
Free exFAT implementation.
Copyright (C) 2010-2018 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 COMPILER_H_INCLUDED
#define COMPILER_H_INCLUDED
#if __STDC_VERSION__ < 199901L
#error C99-compliant compiler is required
#endif
#if defined(__clang__)
#define PRINTF __attribute__((format(printf, 1, 2)))
#define NORETURN __attribute__((noreturn))
#define PACKED __attribute__((packed))
#if __has_extension(c_static_assert)
#define USE_C11_STATIC_ASSERT
#endif
#elif defined(__GNUC__)
#define PRINTF __attribute__((format(printf, 1, 2)))
#define NORETURN __attribute__((noreturn))
#define PACKED __attribute__((packed))
#if __GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 6)
#define USE_C11_STATIC_ASSERT
#endif
#else
#define PRINTF
#define NORETURN
#define PACKED
#endif
#ifdef USE_C11_STATIC_ASSERT
#define STATIC_ASSERT(cond) _Static_assert(cond, #cond)
#else
#define CONCAT2(a, b) a ## b
#define CONCAT1(a, b) CONCAT2(a, b)
#define STATIC_ASSERT(cond) \
extern void CONCAT1(static_assert, __LINE__)(int x[(cond) ? 1 : -1])
#endif
#endif /* ifndef COMPILER_H_INCLUDED */

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/* libexfat/config.h.in. Generated from configure.ac by autoheader. */
/* Name of package */
#undef PACKAGE
/* Define to the address where bug reports for this package should be sent. */
#undef PACKAGE_BUGREPORT
/* Define to the full name of this package. */
#undef PACKAGE_NAME
/* Define to the full name and version of this package. */
#undef PACKAGE_STRING
/* Define to the one symbol short name of this package. */
#undef PACKAGE_TARNAME
/* Define to the home page for this package. */
#undef PACKAGE_URL
/* Define to the version of this package. */
#undef PACKAGE_VERSION
/* Define if block devices are not supported. */
#undef USE_UBLIO
/* Version number of package */
#undef VERSION
/* 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

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/*
exfat.h (29.08.09)
Definitions of structures and constants used in exFAT file system
implementation.
Free exFAT implementation.
Copyright (C) 2010-2018 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 EXFAT_H_INCLUDED
#define EXFAT_H_INCLUDED
#ifndef ANDROID
/* Android.bp is used instead of autotools when targeting Android */
#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>
#define EXFAT_NAME_MAX 255
/* UTF-16 encodes code points up to U+FFFF as single 16-bit code units.
UTF-8 uses up to 3 bytes (i.e. 8-bit code units) to encode code points
up to U+FFFF. One additional character is for null terminator. */
#define EXFAT_UTF8_NAME_BUFFER_MAX (EXFAT_NAME_MAX * 3 + 1)
#define EXFAT_UTF8_ENAME_BUFFER_MAX (EXFAT_ENAME_MAX * 3 + 1)
#define SECTOR_SIZE(sb) (1 << (sb).sector_bits)
#define CLUSTER_SIZE(sb) (SECTOR_SIZE(sb) << (sb).spc_bits)
#define CLUSTER_INVALID(sb, c) ((c) < EXFAT_FIRST_DATA_CLUSTER || \
(c) - EXFAT_FIRST_DATA_CLUSTER >= le32_to_cpu((sb).cluster_count))
#define MIN(a, b) ((a) < (b) ? (a) : (b))
#define MAX(a, b) ((a) > (b) ? (a) : (b))
#define DIV_ROUND_UP(x, d) (((x) + (d) - 1) / (d))
#define ROUND_UP(x, d) (DIV_ROUND_UP(x, d) * (d))
#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)))
#define BMAP_GET(bitmap, index) \
((bitmap)[BMAP_BLOCK(index)] & BMAP_MASK(index))
#define BMAP_SET(bitmap, index) \
((bitmap)[BMAP_BLOCK(index)] |= BMAP_MASK(index))
#define BMAP_CLR(bitmap, index) \
((bitmap)[BMAP_BLOCK(index)] &= ~BMAP_MASK(index))
#define EXFAT_REPAIR(hook, ef, ...) \
(exfat_ask_to_fix(ef) && exfat_fix_ ## hook(ef, __VA_ARGS__))
/* 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;
struct exfat_node* child;
struct exfat_node* next;
struct exfat_node* prev;
int references;
uint32_t fptr_index;
cluster_t fptr_cluster;
off_t entry_offset;
cluster_t start_cluster;
uint16_t attrib;
uint8_t continuations;
bool is_contiguous : 1;
bool is_cached : 1;
bool is_dirty : 1;
bool is_unlinked : 1;
uint64_t size;
time_t mtime, atime;
le16_t name[EXFAT_NAME_MAX + 1];
};
enum exfat_mode
{
EXFAT_MODE_RO,
EXFAT_MODE_RW,
EXFAT_MODE_ANY,
};
struct exfat_dev;
struct exfat
{
struct exfat_dev* dev;
struct exfat_super_block* sb;
uint16_t* upcase;
struct exfat_node* root;
struct
{
cluster_t start_cluster;
uint32_t size; /* in bits */
bitmap_t* chunk;
uint32_t chunk_size; /* in bits */
bool dirty;
}
cmap;
char label[EXFAT_UTF8_ENAME_BUFFER_MAX];
void* zero_cluster;
int dmask, fmask;
uid_t uid;
gid_t gid;
int ro;
bool noatime;
enum { EXFAT_REPAIR_NO, EXFAT_REPAIR_ASK, EXFAT_REPAIR_YES } repair;
};
/* in-core nodes iterator */
struct exfat_iterator
{
struct exfat_node* parent;
struct exfat_node* current;
};
struct exfat_human_bytes
{
uint64_t value;
const char* unit;
};
extern int exfat_errors;
extern int exfat_errors_fixed;
void exfat_bug(const char* format, ...) PRINTF NORETURN;
void exfat_error(const char* format, ...) PRINTF;
void exfat_warn(const char* format, ...) PRINTF;
void exfat_debug(const char* format, ...) PRINTF;
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);
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,
off_t offset);
ssize_t exfat_pwrite(struct exfat_dev* dev, const void* buffer, size_t size,
off_t offset);
ssize_t exfat_generic_pread(const struct exfat* ef, struct exfat_node* node,
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, off_t offset);
int exfat_opendir(struct exfat* ef, struct exfat_node* dir,
struct exfat_iterator* it);
void exfat_closedir(struct exfat* ef, struct exfat_iterator* it);
struct exfat_node* exfat_readdir(struct exfat_iterator* it);
int exfat_lookup(struct exfat* ef, struct exfat_node** node,
const char* path);
int exfat_split(struct exfat* ef, struct exfat_node** parent,
struct exfat_node** node, le16_t* name, const char* path);
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, off_t* a, off_t* b);
void exfat_stat(const struct exfat* ef, const struct exfat_node* node,
struct stat* stbuf);
void exfat_get_name(const struct exfat_node* node,
char buffer[EXFAT_UTF8_NAME_BUFFER_MAX]);
uint16_t exfat_start_checksum(const struct exfat_entry_meta1* entry);
uint16_t exfat_add_checksum(const void* entry, uint16_t sum);
le16_t exfat_calc_checksum(const struct exfat_entry* entries, int n);
uint32_t exfat_vbr_start_checksum(const void* sector, size_t size);
uint32_t exfat_vbr_add_checksum(const void* sector, size_t size, uint32_t sum);
le16_t exfat_calc_name_hash(const struct exfat* ef, const le16_t* name,
size_t length);
void exfat_humanize_bytes(uint64_t value, struct exfat_human_bytes* hb);
void exfat_print_info(const struct exfat_super_block* sb,
uint32_t free_clusters);
int utf16_to_utf8(char* output, const le16_t* input, size_t outsize,
size_t insize);
int utf8_to_utf16(le16_t* output, const char* input, size_t outsize,
size_t insize);
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);
int exfat_unlink(struct exfat* ef, struct exfat_node* node);
int exfat_rmdir(struct exfat* ef, struct exfat_node* node);
int exfat_mknod(struct exfat* ef, const char* path);
int exfat_mkdir(struct exfat* ef, const char* path);
int exfat_rename(struct exfat* ef, const char* old_path, const char* new_path);
void exfat_utimes(struct exfat_node* node, const struct timespec tv[2]);
void exfat_update_atime(struct exfat_node* node);
void exfat_update_mtime(struct exfat_node* node);
const char* exfat_get_label(struct exfat* ef);
int exfat_set_label(struct exfat* ef, const char* label);
int exfat_mount(struct exfat* ef, const char* spec, const char* options);
void exfat_unmount(struct exfat* ef);
time_t exfat_exfat2unix(le16_t date, le16_t time, uint8_t centisec);
void exfat_unix2exfat(time_t unix_time, le16_t* date, le16_t* time,
uint8_t* centisec);
void exfat_tzset(void);
bool exfat_ask_to_fix(const struct exfat* ef);
bool exfat_fix_invalid_vbr_checksum(const struct exfat* ef, void* sector,
uint32_t vbr_checksum);
bool exfat_fix_invalid_node_checksum(const struct exfat* ef,
struct exfat_node* node);
bool exfat_fix_unknown_entry(struct exfat* ef, struct exfat_node* dir,
const struct exfat_entry* entry, off_t offset);
#endif /* ifndef EXFAT_H_INCLUDED */

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/*
exfatfs.h (29.08.09)
Definitions of structures and constants used in exFAT file system.
Free exFAT implementation.
Copyright (C) 2010-2018 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 EXFATFS_H_INCLUDED
#define EXFATFS_H_INCLUDED
#include "byteorder.h"
#include "compiler.h"
typedef uint32_t cluster_t; /* cluster number */
#define EXFAT_FIRST_DATA_CLUSTER 2
#define EXFAT_LAST_DATA_CLUSTER 0xfffffff6
#define EXFAT_CLUSTER_FREE 0 /* free cluster */
#define EXFAT_CLUSTER_BAD 0xfffffff7 /* cluster contains bad sector */
#define EXFAT_CLUSTER_END 0xffffffff /* final cluster of file or directory */
#define EXFAT_STATE_MOUNTED 2
struct exfat_super_block
{
uint8_t jump[3]; /* 0x00 jmp and nop instructions */
uint8_t oem_name[8]; /* 0x03 "EXFAT " */
uint8_t __unused1[53]; /* 0x0B always 0 */
le64_t sector_start; /* 0x40 partition first sector */
le64_t sector_count; /* 0x48 partition sectors count */
le32_t fat_sector_start; /* 0x50 FAT first sector */
le32_t fat_sector_count; /* 0x54 FAT sectors count */
le32_t cluster_sector_start; /* 0x58 first cluster sector */
le32_t cluster_count; /* 0x5C total clusters count */
le32_t rootdir_cluster; /* 0x60 first cluster of the root dir */
le32_t volume_serial; /* 0x64 volume serial number */
struct /* 0x68 FS version */
{
uint8_t minor;
uint8_t major;
}
version;
le16_t volume_state; /* 0x6A volume state flags */
uint8_t sector_bits; /* 0x6C sector size as (1 << n) */
uint8_t spc_bits; /* 0x6D sectors per cluster as (1 << n) */
uint8_t fat_count; /* 0x6E always 1 */
uint8_t drive_no; /* 0x6F always 0x80 */
uint8_t allocated_percent; /* 0x70 percentage of allocated space */
uint8_t __unused2[397]; /* 0x71 always 0 */
le16_t boot_signature; /* the value of 0xAA55 */
}
PACKED;
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)
#define EXFAT_ENTRY_LABEL (0x03 | EXFAT_ENTRY_VALID)
#define EXFAT_ENTRY_FILE (0x05 | EXFAT_ENTRY_VALID)
#define EXFAT_ENTRY_FILE_INFO (0x00 | EXFAT_ENTRY_VALID | EXFAT_ENTRY_CONTINUED)
#define EXFAT_ENTRY_FILE_NAME (0x01 | EXFAT_ENTRY_VALID | EXFAT_ENTRY_CONTINUED)
#define EXFAT_ENTRY_FILE_TAIL (0x00 | EXFAT_ENTRY_VALID \
| EXFAT_ENTRY_CONTINUED \
| EXFAT_ENTRY_OPTIONAL)
struct exfat_entry /* common container for all entries */
{
uint8_t type; /* any of EXFAT_ENTRY_xxx */
uint8_t data[31];
}
PACKED;
STATIC_ASSERT(sizeof(struct exfat_entry) == 32);
#define EXFAT_ENAME_MAX 15
struct exfat_entry_bitmap /* allocated clusters bitmap */
{
uint8_t type; /* EXFAT_ENTRY_BITMAP */
uint8_t __unknown1[19];
le32_t start_cluster;
le64_t size; /* in bytes */
}
PACKED;
STATIC_ASSERT(sizeof(struct exfat_entry_bitmap) == 32);
#define EXFAT_UPCASE_CHARS 0x10000
struct exfat_entry_upcase /* upper case translation table */
{
uint8_t type; /* EXFAT_ENTRY_UPCASE */
uint8_t __unknown1[3];
le32_t checksum;
uint8_t __unknown2[12];
le32_t start_cluster;
le64_t size; /* in bytes */
}
PACKED;
STATIC_ASSERT(sizeof(struct exfat_entry_upcase) == 32);
struct exfat_entry_label /* volume label */
{
uint8_t type; /* EXFAT_ENTRY_LABEL */
uint8_t length; /* number of characters */
le16_t name[EXFAT_ENAME_MAX]; /* in UTF-16LE */
}
PACKED;
STATIC_ASSERT(sizeof(struct exfat_entry_label) == 32);
#define EXFAT_ATTRIB_RO 0x01
#define EXFAT_ATTRIB_HIDDEN 0x02
#define EXFAT_ATTRIB_SYSTEM 0x04
#define EXFAT_ATTRIB_VOLUME 0x08
#define EXFAT_ATTRIB_DIR 0x10
#define EXFAT_ATTRIB_ARCH 0x20
struct exfat_entry_meta1 /* file or directory info (part 1) */
{
uint8_t type; /* EXFAT_ENTRY_FILE */
uint8_t continuations;
le16_t checksum;
le16_t attrib; /* combination of EXFAT_ATTRIB_xxx */
le16_t __unknown1;
le16_t crtime, crdate; /* creation date and time */
le16_t mtime, mdate; /* latest modification date and time */
le16_t atime, adate; /* latest access date and time */
uint8_t crtime_cs; /* creation time in cs (centiseconds) */
uint8_t mtime_cs; /* latest modification time in cs */
uint8_t __unknown2[10];
}
PACKED;
STATIC_ASSERT(sizeof(struct exfat_entry_meta1) == 32);
#define EXFAT_FLAG_ALWAYS1 (1u << 0)
#define EXFAT_FLAG_CONTIGUOUS (1u << 1)
struct exfat_entry_meta2 /* file or directory info (part 2) */
{
uint8_t type; /* EXFAT_ENTRY_FILE_INFO */
uint8_t flags; /* combination of EXFAT_FLAG_xxx */
uint8_t __unknown1;
uint8_t name_length;
le16_t name_hash;
le16_t __unknown2;
le64_t valid_size; /* in bytes, less or equal to size */
uint8_t __unknown3[4];
le32_t start_cluster;
le64_t size; /* in bytes */
}
PACKED;
STATIC_ASSERT(sizeof(struct exfat_entry_meta2) == 32);
struct exfat_entry_name /* file or directory name */
{
uint8_t type; /* EXFAT_ENTRY_FILE_NAME */
uint8_t __unknown;
le16_t name[EXFAT_ENAME_MAX]; /* in UTF-16LE */
}
PACKED;
STATIC_ASSERT(sizeof(struct exfat_entry_name) == 32);
#endif /* ifndef EXFATFS_H_INCLUDED */

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/*
io.c (02.09.09)
exFAT file system implementation library.
Free exFAT implementation.
Copyright (C) 2010-2018 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.
*/
#include "exfat.h"
#include <inttypes.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <unistd.h>
#include <string.h>
#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>
#elif __linux__
#include <sys/mount.h>
#endif
#ifdef USE_UBLIO
#include <sys/uio.h>
#include <ublio.h>
#endif
struct exfat_dev
{
int fd;
enum exfat_mode mode;
off_t size; /* in bytes */
#ifdef USE_UBLIO
off_t pos;
ublio_filehandle_t ufh;
#endif
};
static bool is_open(int fd)
{
return fcntl(fd, F_GETFD) != -1;
}
static int open_ro(const char* spec)
{
return open(spec, O_RDONLY);
}
static int open_rw(const char* spec)
{
int fd = open(spec, O_RDWR);
#ifdef __linux__
int ro = 0;
/*
This ioctl is needed because after "blockdev --setro" kernel still
allows to open the device in read-write mode but fails writes.
*/
if (fd != -1 && ioctl(fd, BLKROGET, &ro) == 0 && ro)
{
close(fd);
errno = EROFS;
return -1;
}
#endif
return fd;
}
struct exfat_dev* exfat_open(const char* spec, enum exfat_mode mode)
{
struct exfat_dev* dev;
struct stat stbuf;
#ifdef USE_UBLIO
struct ublio_param up;
#endif
/* The system allocates file descriptors sequentially. If we have been
started with stdin (0), stdout (1) or stderr (2) closed, the system
will give us descriptor 0, 1 or 2 later when we open block device,
FUSE communication pipe, etc. As a result, functions using stdin,
stdout or stderr will actually work with a different thing and can
corrupt it. Protect descriptors 0, 1 and 2 from such misuse. */
while (!is_open(STDIN_FILENO)
|| !is_open(STDOUT_FILENO)
|| !is_open(STDERR_FILENO))
{
/* we don't need those descriptors, let them leak */
if (open("/dev/null", O_RDWR) == -1)
{
exfat_error("failed to open /dev/null");
return NULL;
}
}
dev = malloc(sizeof(struct exfat_dev));
if (dev == NULL)
{
exfat_error("failed to allocate memory for device structure");
return NULL;
}
switch (mode)
{
case EXFAT_MODE_RO:
dev->fd = open_ro(spec);
if (dev->fd == -1)
{
free(dev);
exfat_error("failed to open '%s' in read-only mode: %s", spec,
strerror(errno));
return NULL;
}
dev->mode = EXFAT_MODE_RO;
break;
case EXFAT_MODE_RW:
dev->fd = open_rw(spec);
if (dev->fd == -1)
{
free(dev);
exfat_error("failed to open '%s' in read-write mode: %s", spec,
strerror(errno));
return NULL;
}
dev->mode = EXFAT_MODE_RW;
break;
case EXFAT_MODE_ANY:
dev->fd = open_rw(spec);
if (dev->fd != -1)
{
dev->mode = EXFAT_MODE_RW;
break;
}
dev->fd = open_ro(spec);
if (dev->fd != -1)
{
dev->mode = EXFAT_MODE_RO;
exfat_warn("'%s' is write-protected, mounting read-only", spec);
break;
}
free(dev);
exfat_error("failed to open '%s': %s", spec, strerror(errno));
return NULL;
}
if (fstat(dev->fd, &stbuf) != 0)
{
close(dev->fd);
free(dev);
exfat_error("failed to fstat '%s'", spec);
return NULL;
}
if (!S_ISBLK(stbuf.st_mode) &&
!S_ISCHR(stbuf.st_mode) &&
!S_ISREG(stbuf.st_mode))
{
close(dev->fd);
free(dev);
exfat_error("'%s' is neither a device, nor a regular file", spec);
return NULL;
}
#if defined(__APPLE__)
if (!S_ISREG(stbuf.st_mode))
{
uint32_t block_size = 0;
uint64_t blocks = 0;
if (ioctl(dev->fd, DKIOCGETBLOCKSIZE, &block_size) != 0)
{
close(dev->fd);
free(dev);
exfat_error("failed to get block size");
return NULL;
}
if (ioctl(dev->fd, DKIOCGETBLOCKCOUNT, &blocks) != 0)
{
close(dev->fd);
free(dev);
exfat_error("failed to get blocks count");
return NULL;
}
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 */
dev->size = exfat_seek(dev, 0, SEEK_END);
if (dev->size <= 0)
{
close(dev->fd);
free(dev);
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);
return NULL;
}
}
#ifdef USE_UBLIO
memset(&up, 0, sizeof(struct ublio_param));
up.up_blocksize = 256 * 1024;
up.up_items = 64;
up.up_grace = 32;
up.up_priv = &dev->fd;
dev->pos = 0;
dev->ufh = ublio_open(&up);
if (dev->ufh == NULL)
{
close(dev->fd);
free(dev);
exfat_error("failed to initialize ublio");
return NULL;
}
#endif
return dev;
}
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)
{
exfat_error("failed to close device: %s", strerror(errno));
rc = -EIO;
}
free(dev);
return rc;
}
int exfat_fsync(struct exfat_dev* dev)
{
int rc = 0;
#ifdef USE_UBLIO
if (ublio_fsync(dev->ufh) != 0)
{
exfat_error("ublio fsync failed");
rc = -EIO;
}
#endif
if (fsync(dev->fd) != 0)
{
exfat_error("fsync failed: %s", strerror(errno));
rc = -EIO;
}
return rc;
}
enum exfat_mode exfat_get_mode(const struct exfat_dev* dev)
{
return dev->mode;
}
off_t exfat_get_size(const struct exfat_dev* dev)
{
return dev->size;
}
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 = lseek(dev->fd, offset, whence);
#else
return lseek(dev->fd, offset, whence);
#endif
}
ssize_t exfat_read(struct exfat_dev* dev, void* buffer, size_t size)
{
#ifdef USE_UBLIO
ssize_t result = ublio_pread(dev->ufh, buffer, size, dev->pos);
if (result >= 0)
dev->pos += size;
return result;
#else
return read(dev->fd, buffer, size);
#endif
}
ssize_t exfat_write(struct exfat_dev* dev, const void* buffer, size_t size)
{
#ifdef USE_UBLIO
ssize_t result = ublio_pwrite(dev->ufh, buffer, size, dev->pos);
if (result >= 0)
dev->pos += size;
return result;
#else
return write(dev->fd, buffer, size);
#endif
}
ssize_t exfat_pread(struct exfat_dev* dev, void* buffer, size_t size,
off_t offset)
{
#ifdef USE_UBLIO
return ublio_pread(dev->ufh, buffer, size, offset);
#else
return pread(dev->fd, buffer, size, offset);
#endif
}
ssize_t exfat_pwrite(struct exfat_dev* dev, const void* buffer, size_t size,
off_t offset)
{
#ifdef USE_UBLIO
return ublio_pwrite(dev->ufh, buffer, size, offset);
#else
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, off_t offset)
{
cluster_t cluster;
char* bufp = buffer;
off_t lsize, loffset, remainder;
if (offset >= node->size)
return 0;
if (size == 0)
return 0;
cluster = exfat_advance_cluster(ef, node, offset / CLUSTER_SIZE(*ef->sb));
if (CLUSTER_INVALID(*ef->sb, cluster))
{
exfat_error("invalid cluster 0x%x while reading", cluster);
return -EIO;
}
loffset = offset % CLUSTER_SIZE(*ef->sb);
remainder = MIN(size, node->size - offset);
while (remainder > 0)
{
if (CLUSTER_INVALID(*ef->sb, cluster))
{
exfat_error("invalid cluster 0x%x while reading", cluster);
return -EIO;
}
lsize = MIN(CLUSTER_SIZE(*ef->sb) - loffset, remainder);
if (exfat_pread(ef->dev, bufp, lsize,
exfat_c2o(ef, cluster) + loffset) < 0)
{
exfat_error("failed to read cluster %#x", cluster);
return -EIO;
}
bufp += lsize;
loffset = 0;
remainder -= lsize;
cluster = exfat_next_cluster(ef, node, cluster);
}
if (!(node->attrib & EXFAT_ATTRIB_DIR) && !ef->ro && !ef->noatime)
exfat_update_atime(node);
return MIN(size, node->size - offset) - remainder;
}
ssize_t exfat_generic_pwrite(struct exfat* ef, struct exfat_node* node,
const void* buffer, size_t size, off_t offset)
{
int rc;
cluster_t cluster;
const char* bufp = buffer;
off_t lsize, loffset, remainder;
if (offset > node->size)
{
rc = exfat_truncate(ef, node, offset, true);
if (rc != 0)
return rc;
}
if (offset + size > node->size)
{
rc = exfat_truncate(ef, node, offset + size, false);
if (rc != 0)
return rc;
}
if (size == 0)
return 0;
cluster = exfat_advance_cluster(ef, node, offset / CLUSTER_SIZE(*ef->sb));
if (CLUSTER_INVALID(*ef->sb, cluster))
{
exfat_error("invalid cluster 0x%x while writing", cluster);
return -EIO;
}
loffset = offset % CLUSTER_SIZE(*ef->sb);
remainder = size;
while (remainder > 0)
{
if (CLUSTER_INVALID(*ef->sb, cluster))
{
exfat_error("invalid cluster 0x%x while writing", cluster);
return -EIO;
}
lsize = MIN(CLUSTER_SIZE(*ef->sb) - loffset, remainder);
if (exfat_pwrite(ef->dev, bufp, lsize,
exfat_c2o(ef, cluster) + loffset) < 0)
{
exfat_error("failed to write cluster %#x", cluster);
return -EIO;
}
bufp += lsize;
loffset = 0;
remainder -= lsize;
cluster = exfat_next_cluster(ef, node, cluster);
}
if (!(node->attrib & EXFAT_ATTRIB_DIR))
/* directory's mtime should be updated by the caller only when it
creates or removes something in this directory */
exfat_update_mtime(node);
return size - remainder;
}

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/*
log.c (02.09.09)
exFAT file system implementation library.
Free exFAT implementation.
Copyright (C) 2010-2018 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.
*/
#include "exfat.h"
#include <stdarg.h>
#ifdef __ANDROID__
#include <android/log.h>
#else
#include <syslog.h>
#endif
#include <unistd.h>
int exfat_errors;
/*
* This message means an internal bug in exFAT implementation.
*/
void exfat_bug(const char* format, ...)
{
va_list ap, aq;
va_start(ap, format);
va_copy(aq, ap);
fflush(stdout);
fputs("BUG: ", stderr);
vfprintf(stderr, format, ap);
va_end(ap);
fputs(".\n", stderr);
#ifdef __ANDROID__
__android_log_vprint(ANDROID_LOG_FATAL, PACKAGE, format, aq);
#else
if (!isatty(STDERR_FILENO))
vsyslog(LOG_CRIT, format, aq);
#endif
va_end(aq);
abort();
}
/*
* This message means an error in exFAT file system.
*/
void exfat_error(const char* format, ...)
{
va_list ap, aq;
exfat_errors++;
va_start(ap, format);
va_copy(aq, ap);
fflush(stdout);
fputs("ERROR: ", stderr);
vfprintf(stderr, format, ap);
va_end(ap);
fputs(".\n", stderr);
#ifdef __ANDROID__
__android_log_vprint(ANDROID_LOG_ERROR, PACKAGE, format, aq);
#else
if (!isatty(STDERR_FILENO))
vsyslog(LOG_ERR, format, aq);
#endif
va_end(aq);
}
/*
* This message means that there is something unexpected in exFAT file system
* that can be a potential problem.
*/
void exfat_warn(const char* format, ...)
{
va_list ap, aq;
va_start(ap, format);
va_copy(aq, ap);
fflush(stdout);
fputs("WARN: ", stderr);
vfprintf(stderr, format, ap);
va_end(ap);
fputs(".\n", stderr);
#ifdef __ANDROID__
__android_log_vprint(ANDROID_LOG_WARN, PACKAGE, format, aq);
#else
if (!isatty(STDERR_FILENO))
vsyslog(LOG_WARNING, format, aq);
#endif
va_end(aq);
}
/*
* Just debug message. Disabled by default.
*/
void exfat_debug(const char* format, ...)
{
va_list ap;
fflush(stdout);
fputs("DEBUG: ", stderr);
va_start(ap, format);
vfprintf(stderr, format, ap);
va_end(ap);
fputs(".\n", stderr);
}

222
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/*
lookup.c (02.09.09)
exFAT file system implementation library.
Free exFAT implementation.
Copyright (C) 2010-2018 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.
*/
#include "exfat.h"
#include <string.h>
#include <errno.h>
#include <inttypes.h>
int exfat_opendir(struct exfat* ef, struct exfat_node* dir,
struct exfat_iterator* it)
{
int rc;
exfat_get_node(dir);
it->parent = dir;
it->current = NULL;
rc = exfat_cache_directory(ef, dir);
if (rc != 0)
exfat_put_node(ef, dir);
return rc;
}
void exfat_closedir(struct exfat* ef, struct exfat_iterator* it)
{
exfat_put_node(ef, it->parent);
it->parent = NULL;
it->current = NULL;
}
struct exfat_node* exfat_readdir(struct exfat_iterator* it)
{
if (it->current == NULL)
it->current = it->parent->child;
else
it->current = it->current->next;
if (it->current != NULL)
return exfat_get_node(it->current);
else
return NULL;
}
static int compare_char(struct exfat* ef, uint16_t a, uint16_t b)
{
return (int) ef->upcase[a] - (int) ef->upcase[b];
}
static int compare_name(struct exfat* ef, const le16_t* a, const le16_t* b)
{
while (le16_to_cpu(*a) && le16_to_cpu(*b))
{
int rc = compare_char(ef, le16_to_cpu(*a), le16_to_cpu(*b));
if (rc != 0)
return rc;
a++;
b++;
}
return compare_char(ef, le16_to_cpu(*a), le16_to_cpu(*b));
}
static int lookup_name(struct exfat* ef, struct exfat_node* parent,
struct exfat_node** node, const char* name, size_t n)
{
struct exfat_iterator it;
le16_t buffer[EXFAT_NAME_MAX + 1];
int rc;
*node = NULL;
rc = utf8_to_utf16(buffer, name, EXFAT_NAME_MAX + 1, n);
if (rc != 0)
return rc;
rc = exfat_opendir(ef, parent, &it);
if (rc != 0)
return rc;
while ((*node = exfat_readdir(&it)))
{
if (compare_name(ef, buffer, (*node)->name) == 0)
{
exfat_closedir(ef, &it);
return 0;
}
exfat_put_node(ef, *node);
}
exfat_closedir(ef, &it);
return -ENOENT;
}
static size_t get_comp(const char* path, const char** comp)
{
const char* end;
*comp = path + strspn(path, "/"); /* skip leading slashes */
end = strchr(*comp, '/');
if (end == NULL)
return strlen(*comp);
else
return end - *comp;
}
int exfat_lookup(struct exfat* ef, struct exfat_node** node,
const char* path)
{
struct exfat_node* parent;
const char* p;
size_t n;
int rc;
/* start from the root directory */
parent = *node = exfat_get_node(ef->root);
for (p = path; (n = get_comp(p, &p)); p += n)
{
if (n == 1 && *p == '.') /* skip "." component */
continue;
rc = lookup_name(ef, parent, node, p, n);
if (rc != 0)
{
exfat_put_node(ef, parent);
return rc;
}
exfat_put_node(ef, parent);
parent = *node;
}
return 0;
}
static bool is_last_comp(const char* comp, size_t length)
{
const char* p = comp + length;
return get_comp(p, &p) == 0;
}
static bool is_allowed(const char* comp, size_t length)
{
size_t i;
for (i = 0; i < length; i++)
switch (comp[i])
{
case 0x01 ... 0x1f:
case '/':
case '\\':
case ':':
case '*':
case '?':
case '"':
case '<':
case '>':
case '|':
return false;
}
return true;
}
int exfat_split(struct exfat* ef, struct exfat_node** parent,
struct exfat_node** node, le16_t* name, const char* path)
{
const char* p;
size_t n;
int rc;
memset(name, 0, (EXFAT_NAME_MAX + 1) * sizeof(le16_t));
*parent = *node = exfat_get_node(ef->root);
for (p = path; (n = get_comp(p, &p)); p += n)
{
if (n == 1 && *p == '.')
continue;
if (is_last_comp(p, n))
{
if (!is_allowed(p, n))
{
/* contains characters that are not allowed */
exfat_put_node(ef, *parent);
return -ENOENT;
}
rc = utf8_to_utf16(name, p, EXFAT_NAME_MAX + 1, n);
if (rc != 0)
{
exfat_put_node(ef, *parent);
return rc;
}
rc = lookup_name(ef, *parent, node, p, n);
if (rc != 0 && rc != -ENOENT)
{
exfat_put_node(ef, *parent);
return rc;
}
return 0;
}
rc = lookup_name(ef, *parent, node, p, n);
if (rc != 0)
{
exfat_put_node(ef, *parent);
return rc;
}
exfat_put_node(ef, *parent);
*parent = *node;
}
exfat_bug("impossible");
}

389
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/*
mount.c (22.10.09)
exFAT file system implementation library.
Free exFAT implementation.
Copyright (C) 2010-2018 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.
*/
#include "exfat.h"
#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)
{
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);
/* 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
{
if (clusters == clusters_max) /* infinite loop detected */
{
exfat_error("root directory cannot occupy all %d clusters",
clusters);
return 0;
}
if (CLUSTER_INVALID(*ef->sb, 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++;
}
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)
{
const char* p;
size_t length = strlen(option_name);
for (p = strstr(options, option_name); p; p = strstr(p + 1, option_name))
if ((p == options || p[-1] == ',') && p[length] == '=')
return p + length + 1;
return NULL;
}
static int get_int_option(const char* options, const char* option_name,
int base, int default_value)
{
const char* p = get_option(options, option_name);
if (p == NULL)
return default_value;
return strtol(p, NULL, base);
}
static bool match_option(const char* options, const char* option_name)
{
const char* p;
size_t length = strlen(option_name);
for (p = strstr(options, option_name); p; p = strstr(p + 1, option_name))
if ((p == options || p[-1] == ',') &&
(p[length] == ',' || p[length] == '\0'))
return true;
return false;
}
static void parse_options(struct exfat* ef, const char* options)
{
int opt_umask;
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());
ef->noatime = match_option(options, "noatime");
switch (get_int_option(options, "repair", 10, 0))
{
case 1:
ef->repair = EXFAT_REPAIR_ASK;
break;
case 2:
ef->repair = EXFAT_REPAIR_YES;
break;
default:
ef->repair = EXFAT_REPAIR_NO;
break;
}
}
static bool verify_vbr_checksum(const struct exfat* ef, void* sector)
{
off_t sector_size = SECTOR_SIZE(*ef->sb);
uint32_t vbr_checksum;
int i;
if (exfat_pread(ef->dev, sector, sector_size, 0) < 0)
{
exfat_error("failed to read boot sector");
return false;
}
vbr_checksum = exfat_vbr_start_checksum(sector, sector_size);
for (i = 1; i < 11; i++)
{
if (exfat_pread(ef->dev, sector, sector_size, i * sector_size) < 0)
{
exfat_error("failed to read VBR sector");
return false;
}
vbr_checksum = exfat_vbr_add_checksum(sector, sector_size,
vbr_checksum);
}
if (exfat_pread(ef->dev, sector, sector_size, i * sector_size) < 0)
{
exfat_error("failed to read VBR checksum sector");
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);
if (!EXFAT_REPAIR(invalid_vbr_checksum, ef, sector, vbr_checksum))
return false;
}
return true;
}
static int commit_super_block(const struct exfat* ef)
{
if (exfat_pwrite(ef->dev, ef->sb, sizeof(struct exfat_super_block), 0) < 0)
{
exfat_error("failed to write super block");
return 1;
}
return exfat_fsync(ef->dev);
}
static int prepare_super_block(const struct exfat* ef)
{
if (le16_to_cpu(ef->sb->volume_state) & EXFAT_STATE_MOUNTED)
exfat_warn("volume was not unmounted cleanly");
if (ef->ro)
return 0;
ef->sb->volume_state = cpu_to_le16(
le16_to_cpu(ef->sb->volume_state) | EXFAT_STATE_MOUNTED);
return commit_super_block(ef);
}
static void exfat_free(struct exfat* ef)
{
exfat_close(ef->dev); /* first of all, close the descriptor */
ef->dev = NULL; /* struct exfat_dev is freed by exfat_close() */
free(ef->root);
ef->root = NULL;
free(ef->zero_cluster);
ef->zero_cluster = NULL;
free(ef->cmap.chunk);
ef->cmap.chunk = NULL;
free(ef->upcase);
ef->upcase = NULL;
free(ef->sb);
ef->sb = NULL;
}
int exfat_mount(struct exfat* ef, const char* spec, const char* options)
{
int rc;
enum exfat_mode mode;
exfat_tzset();
memset(ef, 0, sizeof(struct exfat));
parse_options(ef, options);
if (match_option(options, "ro"))
mode = EXFAT_MODE_RO;
else if (match_option(options, "ro_fallback"))
mode = EXFAT_MODE_ANY;
else
mode = EXFAT_MODE_RW;
ef->dev = exfat_open(spec, mode);
if (ef->dev == NULL)
return -EIO;
if (exfat_get_mode(ef->dev) == EXFAT_MODE_RO)
{
if (mode == EXFAT_MODE_ANY)
ef->ro = -1;
else
ef->ro = 1;
}
ef->sb = malloc(sizeof(struct exfat_super_block));
if (ef->sb == NULL)
{
exfat_error("failed to allocate memory for the super block");
exfat_free(ef);
return -ENOMEM;
}
memset(ef->sb, 0, sizeof(struct exfat_super_block));
if (exfat_pread(ef->dev, ef->sb, sizeof(struct exfat_super_block), 0) < 0)
{
exfat_error("failed to read boot sector");
exfat_free(ef);
return -EIO;
}
if (memcmp(ef->sb->oem_name, "EXFAT ", 8) != 0)
{
exfat_error("exFAT file system is not found");
exfat_free(ef);
return -EIO;
}
/* sector cannot be smaller than 512 bytes */
if (ef->sb->sector_bits < 9)
{
exfat_error("too small sector size: 2^%hhd", ef->sb->sector_bits);
exfat_free(ef);
return -EIO;
}
/* officially exFAT supports cluster size up to 32 MB */
if ((int) ef->sb->sector_bits + (int) ef->sb->spc_bits > 25)
{
exfat_error("too big cluster size: 2^(%hhd+%hhd)",
ef->sb->sector_bits, ef->sb->spc_bits);
exfat_free(ef);
return -EIO;
}
ef->zero_cluster = malloc(CLUSTER_SIZE(*ef->sb));
if (ef->zero_cluster == NULL)
{
exfat_error("failed to allocate zero sector");
exfat_free(ef);
return -ENOMEM;
}
/* use zero_cluster as a temporary buffer for VBR checksum verification */
if (!verify_vbr_checksum(ef, ef->zero_cluster))
{
exfat_free(ef);
return -EIO;
}
memset(ef->zero_cluster, 0, CLUSTER_SIZE(*ef->sb));
if (ef->sb->version.major != 1 || ef->sb->version.minor != 0)
{
exfat_error("unsupported exFAT version: %hhu.%hhu",
ef->sb->version.major, ef->sb->version.minor);
exfat_free(ef);
return -EIO;
}
if (ef->sb->fat_count != 1)
{
exfat_error("unsupported FAT count: %hhu", ef->sb->fat_count);
exfat_free(ef);
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 in sectors is larger than device: "
"%"PRIu64" * %d > %"PRIu64,
le64_to_cpu(ef->sb->sector_count), SECTOR_SIZE(*ef->sb),
exfat_get_size(ef->dev));
}
if ((off_t) le32_to_cpu(ef->sb->cluster_count) * CLUSTER_SIZE(*ef->sb) >
exfat_get_size(ef->dev))
{
exfat_error("file system in clusters is larger than device: "
"%u * %d > %"PRIu64,
le32_to_cpu(ef->sb->cluster_count), CLUSTER_SIZE(*ef->sb),
exfat_get_size(ef->dev));
exfat_free(ef);
return -EIO;
}
ef->root = malloc(sizeof(struct exfat_node));
if (ef->root == NULL)
{
exfat_error("failed to allocate root node");
exfat_free(ef);
return -ENOMEM;
}
memset(ef->root, 0, sizeof(struct exfat_node));
ef->root->attrib = EXFAT_ATTRIB_DIR;
ef->root->start_cluster = le32_to_cpu(ef->sb->rootdir_cluster);
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)
{
exfat_free(ef);
return -EIO;
}
/* exFAT does not have time attributes for the root directory */
ef->root->mtime = 0;
ef->root->atime = 0;
/* always keep at least 1 reference to the root node */
exfat_get_node(ef->root);
rc = exfat_cache_directory(ef, ef->root);
if (rc != 0)
goto error;
if (ef->upcase == NULL)
{
exfat_error("upcase table is not found");
goto error;
}
if (ef->cmap.chunk == NULL)
{
exfat_error("clusters bitmap is not found");
goto error;
}
if (prepare_super_block(ef) != 0)
goto error;
return 0;
error:
exfat_put_node(ef, ef->root);
exfat_reset_cache(ef);
exfat_free(ef);
return -EIO;
}
static void finalize_super_block(struct exfat* ef)
{
if (ef->ro)
return;
ef->sb->volume_state = cpu_to_le16(
le16_to_cpu(ef->sb->volume_state) & ~EXFAT_STATE_MOUNTED);
/* Some implementations set the percentage of allocated space to 0xff
on FS creation and never update it. In this case leave it as is. */
if (ef->sb->allocated_percent != 0xff)
{
uint32_t free, total;
free = exfat_count_free_clusters(ef);
total = le32_to_cpu(ef->sb->cluster_count);
ef->sb->allocated_percent = ((total - free) * 100 + total / 2) / total;
}
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);
finalize_super_block(ef);
exfat_free(ef); /* will close the descriptor */
}

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libexfat/platform.h Normal file
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/*
platform.h (14.05.13)
OS-specific code (libc-specific in fact). Note that systems with the
same kernel can use different libc implementations.
Free exFAT implementation.
Copyright (C) 2010-2018 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 PLATFORM_H_INCLUDED
#define PLATFORM_H_INCLUDED
#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 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(__DragonFly__) || defined(__NetBSD__) || defined(__OpenBSD__)
#include <sys/endian.h>
#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
#endif
#endif /* ifndef PLATFORM_H_INCLUDED */

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libexfat/repair.c Normal file
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/*
repair.c (09.03.17)
exFAT file system implementation library.
Free exFAT implementation.
Copyright (C) 2010-2018 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.
*/
#include "exfat.h"
#include <strings.h>
int exfat_errors_fixed;
bool exfat_ask_to_fix(const struct exfat* ef)
{
const char* question = "Fix (Y/N)?";
char answer[8];
bool yeah, nope;
switch (ef->repair)
{
case EXFAT_REPAIR_NO:
return false;
case EXFAT_REPAIR_YES:
printf("%s %s", question, "Y\n");
return true;
case EXFAT_REPAIR_ASK:
do
{
printf("%s ", question);
fflush(stdout);
if (fgets(answer, sizeof(answer), stdin))
{
yeah = strcasecmp(answer, "Y\n") == 0;
nope = strcasecmp(answer, "N\n") == 0;
}
else
{
yeah = false;
nope = true;
}
}
while (!yeah && !nope);
return yeah;
}
exfat_bug("invalid repair option value: %d", ef->repair);
}
bool exfat_fix_invalid_vbr_checksum(const struct exfat* ef, void* sector,
uint32_t vbr_checksum)
{
size_t i;
off_t sector_size = SECTOR_SIZE(*ef->sb);
for (i = 0; i < sector_size / sizeof(vbr_checksum); i++)
((le32_t*) sector)[i] = cpu_to_le32(vbr_checksum);
if (exfat_pwrite(ef->dev, sector, sector_size, 11 * sector_size) < 0)
{
exfat_error("failed to write correct VBR checksum");
return false;
}
exfat_errors_fixed++;
return true;
}
bool exfat_fix_invalid_node_checksum(const struct exfat* ef,
struct exfat_node* node)
{
/* checksum will be rewritten by exfat_flush_node() */
node->is_dirty = true;
exfat_errors_fixed++;
return true;
}
bool exfat_fix_unknown_entry(struct exfat* ef, struct exfat_node* dir,
const struct exfat_entry* entry, off_t offset)
{
struct exfat_entry deleted = *entry;
deleted.type &= ~EXFAT_ENTRY_VALID;
if (exfat_generic_pwrite(ef, dir, &deleted, sizeof(struct exfat_entry),
offset) != sizeof(struct exfat_entry))
return false;
exfat_errors_fixed++;
return true;
}

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/*
time.c (03.02.12)
exFAT file system implementation library.
Free exFAT implementation.
Copyright (C) 2010-2018 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.
*/
#include "exfat.h"
/* timezone offset from UTC in seconds; positive for western timezones,
negative for eastern ones */
static long exfat_timezone;
#define SEC_IN_MIN 60ll
#define SEC_IN_HOUR (60 * SEC_IN_MIN)
#define SEC_IN_DAY (24 * SEC_IN_HOUR)
#define SEC_IN_YEAR (365 * SEC_IN_DAY) /* not leap year */
/* Unix epoch started at 0:00:00 UTC 1 January 1970 */
#define UNIX_EPOCH_YEAR 1970
/* exFAT epoch started at 0:00:00 UTC 1 January 1980 */
#define EXFAT_EPOCH_YEAR 1980
/* number of years from Unix epoch to exFAT epoch */
#define EPOCH_DIFF_YEAR (EXFAT_EPOCH_YEAR - UNIX_EPOCH_YEAR)
/* number of days from Unix epoch to exFAT epoch (considering leap days) */
#define EPOCH_DIFF_DAYS (EPOCH_DIFF_YEAR * 365 + EPOCH_DIFF_YEAR / 4)
/* number of seconds from Unix epoch to exFAT epoch (considering leap days) */
#define EPOCH_DIFF_SEC (EPOCH_DIFF_DAYS * SEC_IN_DAY)
/* number of leap years passed from exFAT epoch to the specified year
(excluding the specified year itself) */
#define LEAP_YEARS(year) ((EXFAT_EPOCH_YEAR + (year) - 1) / 4 \
- (EXFAT_EPOCH_YEAR - 1) / 4)
/* checks whether the specified year is leap */
#define IS_LEAP_YEAR(year) ((EXFAT_EPOCH_YEAR + (year)) % 4 == 0)
static const time_t days_in_year[] =
{
/* Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec */
0, 0, 31, 59, 90, 120, 151, 181, 212, 243, 273, 304, 334
};
time_t exfat_exfat2unix(le16_t date, le16_t time, uint8_t centisec)
{
time_t unix_time = EPOCH_DIFF_SEC;
uint16_t ndate = le16_to_cpu(date);
uint16_t ntime = le16_to_cpu(time);
uint16_t day = ndate & 0x1f; /* 5 bits, 1-31 */
uint16_t month = ndate >> 5 & 0xf; /* 4 bits, 1-12 */
uint16_t year = ndate >> 9; /* 7 bits, 1-127 (+1980) */
uint16_t twosec = ntime & 0x1f; /* 5 bits, 0-29 (2 sec granularity) */
uint16_t min = ntime >> 5 & 0x3f; /* 6 bits, 0-59 */
uint16_t hour = ntime >> 11; /* 5 bits, 0-23 */
if (day == 0 || month == 0 || month > 12)
{
exfat_error("bad date %u-%02hu-%02hu",
year + EXFAT_EPOCH_YEAR, month, day);
return 0;
}
if (hour > 23 || min > 59 || twosec > 29)
{
exfat_error("bad time %hu:%02hu:%02u",
hour, min, twosec * 2);
return 0;
}
if (centisec > 199)
{
exfat_error("bad centiseconds count %hhu", centisec);
return 0;
}
/* every 4th year between 1904 and 2096 is leap */
unix_time += year * SEC_IN_YEAR + LEAP_YEARS(year) * SEC_IN_DAY;
unix_time += days_in_year[month] * SEC_IN_DAY;
/* if it's leap year and February has passed we should add 1 day */
if ((EXFAT_EPOCH_YEAR + year) % 4 == 0 && month > 2)
unix_time += SEC_IN_DAY;
unix_time += (day - 1) * SEC_IN_DAY;
unix_time += hour * SEC_IN_HOUR;
unix_time += min * SEC_IN_MIN;
/* exFAT represents time with 2 sec granularity */
unix_time += twosec * 2;
unix_time += centisec / 100;
/* exFAT stores timestamps in local time, so we correct it to UTC */
unix_time += exfat_timezone;
return unix_time;
}
void exfat_unix2exfat(time_t unix_time, le16_t* date, le16_t* time,
uint8_t* centisec)
{
time_t shift = EPOCH_DIFF_SEC + exfat_timezone;
uint16_t day, month, year;
uint16_t twosec, min, hour;
int days;
int i;
/* time before exFAT epoch cannot be represented */
if (unix_time < shift)
unix_time = shift;
unix_time -= shift;
days = unix_time / SEC_IN_DAY;
year = (4 * days) / (4 * 365 + 1);
days -= year * 365 + LEAP_YEARS(year);
month = 0;
for (i = 1; i <= 12; i++)
{
int leap_day = (IS_LEAP_YEAR(year) && i == 2);
int leap_sub = (IS_LEAP_YEAR(year) && i >= 3);
if (i == 12 || days - leap_sub < days_in_year[i + 1] + leap_day)
{
month = i;
days -= days_in_year[i] + leap_sub;
break;
}
}
day = days + 1;
hour = (unix_time % SEC_IN_DAY) / SEC_IN_HOUR;
min = (unix_time % SEC_IN_HOUR) / SEC_IN_MIN;
twosec = (unix_time % SEC_IN_MIN) / 2;
*date = cpu_to_le16(day | (month << 5) | (year << 9));
*time = cpu_to_le16(twosec | (min << 5) | (hour << 11));
if (centisec)
*centisec = (unix_time % 2) * 100;
}
void exfat_tzset(void)
{
time_t now;
struct tm* utc;
tzset();
now = time(NULL);
utc = gmtime(&now);
/* gmtime() always sets tm_isdst to 0 because daylight savings never
affect UTC. Setting tm_isdst to -1 makes mktime() to determine whether
summer time is in effect. */
utc->tm_isdst = -1;
exfat_timezone = mktime(utc) - now;
}

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/*
utf.c (13.09.09)
exFAT file system implementation library.
Free exFAT implementation.
Copyright (C) 2010-2018 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.
*/
#include "exfat.h"
#include <errno.h>
static char* wchar_to_utf8(char* output, wchar_t wc, size_t outsize)
{
if (wc <= 0x7f)
{
if (outsize < 1)
return NULL;
*output++ = (char) wc;
}
else if (wc <= 0x7ff)
{
if (outsize < 2)
return NULL;
*output++ = 0xc0 | (wc >> 6);
*output++ = 0x80 | (wc & 0x3f);
}
else if (wc <= 0xffff)
{
if (outsize < 3)
return NULL;
*output++ = 0xe0 | (wc >> 12);
*output++ = 0x80 | ((wc >> 6) & 0x3f);
*output++ = 0x80 | (wc & 0x3f);
}
else if (wc <= 0x1fffff)
{
if (outsize < 4)
return NULL;
*output++ = 0xf0 | (wc >> 18);
*output++ = 0x80 | ((wc >> 12) & 0x3f);
*output++ = 0x80 | ((wc >> 6) & 0x3f);
*output++ = 0x80 | (wc & 0x3f);
}
else if (wc <= 0x3ffffff)
{
if (outsize < 5)
return NULL;
*output++ = 0xf8 | (wc >> 24);
*output++ = 0x80 | ((wc >> 18) & 0x3f);
*output++ = 0x80 | ((wc >> 12) & 0x3f);
*output++ = 0x80 | ((wc >> 6) & 0x3f);
*output++ = 0x80 | (wc & 0x3f);
}
else if (wc <= 0x7fffffff)
{
if (outsize < 6)
return NULL;
*output++ = 0xfc | (wc >> 30);
*output++ = 0x80 | ((wc >> 24) & 0x3f);
*output++ = 0x80 | ((wc >> 18) & 0x3f);
*output++ = 0x80 | ((wc >> 12) & 0x3f);
*output++ = 0x80 | ((wc >> 6) & 0x3f);
*output++ = 0x80 | (wc & 0x3f);
}
else
return NULL;
return output;
}
static const le16_t* utf16_to_wchar(const le16_t* input, wchar_t* wc,
size_t insize)
{
if ((le16_to_cpu(input[0]) & 0xfc00) == 0xd800)
{
if (insize < 2 || (le16_to_cpu(input[1]) & 0xfc00) != 0xdc00)
return NULL;
*wc = ((wchar_t) (le16_to_cpu(input[0]) & 0x3ff) << 10);
*wc |= (le16_to_cpu(input[1]) & 0x3ff);
*wc += 0x10000;
return input + 2;
}
else
{
*wc = le16_to_cpu(*input);
return input + 1;
}
}
int utf16_to_utf8(char* output, const le16_t* input, size_t outsize,
size_t insize)
{
const le16_t* inp = input;
char* outp = output;
wchar_t wc;
while (inp - input < insize)
{
inp = utf16_to_wchar(inp, &wc, insize - (inp - input));
if (inp == NULL)
{
exfat_error("illegal UTF-16 sequence");
return -EILSEQ;
}
outp = wchar_to_utf8(outp, wc, outsize - (outp - output));
if (outp == NULL)
{
exfat_error("name is too long");
return -ENAMETOOLONG;
}
if (wc == 0)
return 0;
}
if (outp - output >= outsize)
{
exfat_error("name is too long");
return -ENAMETOOLONG;
}
*outp = '\0';
return 0;
}
static const char* utf8_to_wchar(const char* input, wchar_t* wc,
size_t insize)
{
if ((input[0] & 0x80) == 0 && insize >= 1)
{
*wc = (wchar_t) input[0];
return input + 1;
}
if ((input[0] & 0xe0) == 0xc0 && insize >= 2)
{
*wc = (((wchar_t) input[0] & 0x1f) << 6) |
((wchar_t) input[1] & 0x3f);
return input + 2;
}
if ((input[0] & 0xf0) == 0xe0 && insize >= 3)
{
*wc = (((wchar_t) input[0] & 0x0f) << 12) |
(((wchar_t) input[1] & 0x3f) << 6) |
((wchar_t) input[2] & 0x3f);
return input + 3;
}
if ((input[0] & 0xf8) == 0xf0 && insize >= 4)
{
*wc = (((wchar_t) input[0] & 0x07) << 18) |
(((wchar_t) input[1] & 0x3f) << 12) |
(((wchar_t) input[2] & 0x3f) << 6) |
((wchar_t) input[3] & 0x3f);
return input + 4;
}
if ((input[0] & 0xfc) == 0xf8 && insize >= 5)
{
*wc = (((wchar_t) input[0] & 0x03) << 24) |
(((wchar_t) input[1] & 0x3f) << 18) |
(((wchar_t) input[2] & 0x3f) << 12) |
(((wchar_t) input[3] & 0x3f) << 6) |
((wchar_t) input[4] & 0x3f);
return input + 5;
}
if ((input[0] & 0xfe) == 0xfc && insize >= 6)
{
*wc = (((wchar_t) input[0] & 0x01) << 30) |
(((wchar_t) input[1] & 0x3f) << 24) |
(((wchar_t) input[2] & 0x3f) << 18) |
(((wchar_t) input[3] & 0x3f) << 12) |
(((wchar_t) input[4] & 0x3f) << 6) |
((wchar_t) input[5] & 0x3f);
return input + 6;
}
return NULL;
}
static le16_t* wchar_to_utf16(le16_t* output, wchar_t wc, size_t outsize)
{
if (wc <= 0xffff) /* if character is from BMP */
{
if (outsize == 0)
return NULL;
output[0] = cpu_to_le16(wc);
return output + 1;
}
if (outsize < 2)
return NULL;
wc -= 0x10000;
output[0] = cpu_to_le16(0xd800 | ((wc >> 10) & 0x3ff));
output[1] = cpu_to_le16(0xdc00 | (wc & 0x3ff));
return output + 2;
}
int utf8_to_utf16(le16_t* output, const char* input, size_t outsize,
size_t insize)
{
const char* inp = input;
le16_t* outp = output;
wchar_t wc;
while (inp - input < insize)
{
inp = utf8_to_wchar(inp, &wc, insize - (inp - input));
if (inp == NULL)
{
exfat_error("illegal UTF-8 sequence");
return -EILSEQ;
}
outp = wchar_to_utf16(outp, wc, outsize - (outp - output));
if (outp == NULL)
{
exfat_error("name is too long");
return -ENAMETOOLONG;
}
if (wc == 0)
break;
}
if (outp - output >= outsize)
{
exfat_error("name is too long");
return -ENAMETOOLONG;
}
*outp = cpu_to_le16(0);
return 0;
}
size_t utf16_length(const le16_t* str)
{
size_t i = 0;
while (le16_to_cpu(str[i]))
i++;
return i;
}

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/*
utils.c (04.09.09)
exFAT file system implementation library.
Free exFAT implementation.
Copyright (C) 2010-2018 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.
*/
#include "exfat.h"
#include <string.h>
#include <stdio.h>
#include <inttypes.h>
void exfat_stat(const struct exfat* ef, const struct exfat_node* node,
struct stat* stbuf)
{
memset(stbuf, 0, sizeof(struct stat));
if (node->attrib & EXFAT_ATTRIB_DIR)
stbuf->st_mode = S_IFDIR | (0777 & ~ef->dmask);
else
stbuf->st_mode = S_IFREG | (0777 & ~ef->fmask);
stbuf->st_nlink = 1;
stbuf->st_uid = ef->uid;
stbuf->st_gid = ef->gid;
stbuf->st_size = node->size;
stbuf->st_blocks = ROUND_UP(node->size, CLUSTER_SIZE(*ef->sb)) / 512;
stbuf->st_mtime = node->mtime;
stbuf->st_atime = node->atime;
/* set ctime to mtime to ensure we don't break programs that rely on ctime
(e.g. rsync) */
stbuf->st_ctime = node->mtime;
}
void exfat_get_name(const struct exfat_node* node,
char buffer[EXFAT_UTF8_NAME_BUFFER_MAX])
{
if (utf16_to_utf8(buffer, node->name, EXFAT_UTF8_NAME_BUFFER_MAX,
EXFAT_NAME_MAX) != 0)
exfat_bug("failed to convert name to UTF-8");
}
static uint16_t add_checksum_byte(uint16_t sum, uint8_t byte)
{
return ((sum << 15) | (sum >> 1)) + byte;
}
static uint16_t add_checksum_bytes(uint16_t sum, const void* buffer, size_t n)
{
int i;
for (i = 0; i < n; i++)
sum = add_checksum_byte(sum, ((const uint8_t*) buffer)[i]);
return sum;
}
uint16_t exfat_start_checksum(const struct exfat_entry_meta1* entry)
{
uint16_t sum = 0;
int i;
for (i = 0; i < sizeof(struct exfat_entry); i++)
if (i != 2 && i != 3) /* skip checksum field itself */
sum = add_checksum_byte(sum, ((const uint8_t*) entry)[i]);
return sum;
}
uint16_t exfat_add_checksum(const void* entry, uint16_t sum)
{
return add_checksum_bytes(sum, entry, sizeof(struct exfat_entry));
}
le16_t exfat_calc_checksum(const struct exfat_entry* entries, int n)
{
uint16_t checksum;
int i;
checksum = exfat_start_checksum((const struct exfat_entry_meta1*) entries);
for (i = 1; i < n; i++)
checksum = exfat_add_checksum(entries + i, checksum);
return cpu_to_le16(checksum);
}
uint32_t exfat_vbr_start_checksum(const void* sector, size_t size)
{
size_t i;
uint32_t sum = 0;
for (i = 0; i < size; i++)
/* skip volume_state and allocated_percent fields */
if (i != 0x6a && i != 0x6b && i != 0x70)
sum = ((sum << 31) | (sum >> 1)) + ((const uint8_t*) sector)[i];
return sum;
}
uint32_t exfat_vbr_add_checksum(const void* sector, size_t size, uint32_t sum)
{
size_t i;
for (i = 0; i < size; i++)
sum = ((sum << 31) | (sum >> 1)) + ((const uint8_t*) sector)[i];
return sum;
}
le16_t exfat_calc_name_hash(const struct exfat* ef, const le16_t* name,
size_t length)
{
size_t i;
uint16_t hash = 0;
for (i = 0; i < length; i++)
{
uint16_t c = le16_to_cpu(name[i]);
/* convert to upper case */
c = ef->upcase[c];
hash = ((hash << 15) | (hash >> 1)) + (c & 0xff);
hash = ((hash << 15) | (hash >> 1)) + (c >> 8);
}
return cpu_to_le16(hash);
}
void exfat_humanize_bytes(uint64_t value, struct exfat_human_bytes* hb)
{
size_t i;
/* 16 EB (minus 1 byte) is the largest size that can be represented by
uint64_t */
const char* units[] = {"bytes", "KB", "MB", "GB", "TB", "PB", "EB"};
uint64_t divisor = 1;
uint64_t temp = 0;
for (i = 0; ; i++, divisor *= 1024)
{
temp = (value + divisor / 2) / divisor;
if (temp == 0)
break;
if (temp / 1024 * 1024 == temp)
continue;
if (temp < 10240)
break;
}
hb->value = temp;
hb->unit = units[i];
}
void exfat_print_info(const struct exfat_super_block* sb,
uint32_t free_clusters)
{
struct exfat_human_bytes hb;
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);
exfat_humanize_bytes(SECTOR_SIZE(*sb), &hb);
printf("Sector size %10"PRIu64" %s\n", hb.value, hb.unit);
exfat_humanize_bytes(CLUSTER_SIZE(*sb), &hb);
printf("Cluster size %10"PRIu64" %s\n", hb.value, hb.unit);
exfat_humanize_bytes(total_space, &hb);
printf("Volume size %10"PRIu64" %s\n", hb.value, hb.unit);
exfat_humanize_bytes(total_space - avail_space, &hb);
printf("Used space %10"PRIu64" %s\n", hb.value, hb.unit);
exfat_humanize_bytes(avail_space, &hb);
printf("Available space %10"PRIu64" %s\n", hb.value, hb.unit);
}

215
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#! /bin/sh
# Common wrapper for a few potentially missing GNU programs.
scriptversion=2013-10-28.13; # UTC
# Copyright (C) 1996-2014 Free Software Foundation, Inc.
# Originally written by Fran,cois Pinard <pinard@iro.umontreal.ca>, 1996.
# 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, or (at your option)
# any later version.
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
# As a special exception to the GNU General Public License, if you
# distribute this file as part of a program that contains a
# configuration script generated by Autoconf, you may include it under
# the same distribution terms that you use for the rest of that program.
if test $# -eq 0; then
echo 1>&2 "Try '$0 --help' for more information"
exit 1
fi
case $1 in
--is-lightweight)
# Used by our autoconf macros to check whether the available missing
# script is modern enough.
exit 0
;;
--run)
# Back-compat with the calling convention used by older automake.
shift
;;
-h|--h|--he|--hel|--help)
echo "\
$0 [OPTION]... PROGRAM [ARGUMENT]...
Run 'PROGRAM [ARGUMENT]...', returning a proper advice when this fails due
to PROGRAM being missing or too old.
Options:
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Supported PROGRAM values:
aclocal autoconf autoheader autom4te automake makeinfo
bison yacc flex lex help2man
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/*
cbm.c (09.11.10)
Clusters Bitmap creation code.
Free exFAT implementation.
Copyright (C) 2011-2018 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.
*/
#include "cbm.h"
#include "fat.h"
#include "uct.h"
#include "rootdir.h"
#include <limits.h>
#include <string.h>
static off_t cbm_alignment(void)
{
return get_cluster_size();
}
static off_t cbm_size(void)
{
return DIV_ROUND_UP(
(get_volume_size() - get_position(&cbm)) / get_cluster_size(),
CHAR_BIT);
}
static int cbm_write(struct exfat_dev* dev)
{
uint32_t allocated_clusters =
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 = 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",
BMAP_SIZE(bitmap_size));
return 1;
}
memset(bitmap, 0, BMAP_SIZE(bitmap_size));
for (i = 0; i < bitmap_size; i++)
if (i < allocated_clusters)
BMAP_SET(bitmap, i);
if (exfat_write(dev, bitmap, bitmap_size / CHAR_BIT) < 0)
{
free(bitmap);
exfat_error("failed to write bitmap of %zu bytes",
bitmap_size / CHAR_BIT);
return 1;
}
free(bitmap);
return 0;
}
const struct fs_object cbm =
{
.get_alignment = cbm_alignment,
.get_size = cbm_size,
.write = cbm_write,
};

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/*
cbm.h (09.11.10)
Clusters Bitmap creation code.
Free exFAT implementation.
Copyright (C) 2011-2018 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 MKFS_CBM_H_INCLUDED
#define MKFS_CBM_H_INCLUDED
#include "mkexfat.h"
extern const struct fs_object cbm;
#endif /* ifndef MKFS_CBM_H_INCLUDED */

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/*
fat.c (09.11.10)
File Allocation Table creation code.
Free exFAT implementation.
Copyright (C) 2011-2018 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.
*/
#include "fat.h"
#include "cbm.h"
#include "uct.h"
#include "rootdir.h"
#include <unistd.h>
static off_t fat_alignment(void)
{
return (off_t) 128 * get_sector_size();
}
static off_t fat_size(void)
{
return get_volume_size() / get_cluster_size() * sizeof(cluster_t);
}
static cluster_t fat_write_entry(struct exfat_dev* dev, cluster_t cluster,
cluster_t value)
{
le32_t fat_entry = cpu_to_le32(value);
if (exfat_write(dev, &fat_entry, sizeof(fat_entry)) < 0)
{
exfat_error("failed to write FAT entry 0x%x", value);
return 0;
}
return cluster + 1;
}
static cluster_t fat_write_entries(struct exfat_dev* dev, cluster_t cluster,
uint64_t length)
{
cluster_t end = cluster + DIV_ROUND_UP(length, get_cluster_size());
while (cluster < end - 1)
{
cluster = fat_write_entry(dev, cluster, cluster + 1);
if (cluster == 0)
return 0;
}
return fat_write_entry(dev, cluster, EXFAT_CLUSTER_END);
}
static int fat_write(struct exfat_dev* dev)
{
cluster_t c = 0;
if (!(c = fat_write_entry(dev, c, 0xfffffff8))) /* media type */
return 1;
if (!(c = fat_write_entry(dev, c, 0xffffffff))) /* some weird constant */
return 1;
if (!(c = fat_write_entries(dev, c, cbm.get_size())))
return 1;
if (!(c = fat_write_entries(dev, c, uct.get_size())))
return 1;
if (!(c = fat_write_entries(dev, c, rootdir.get_size())))
return 1;
return 0;
}
const struct fs_object fat =
{
.get_alignment = fat_alignment,
.get_size = fat_size,
.write = fat_write,
};

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/*
fat.h (09.11.10)
File Allocation Table creation code.
Free exFAT implementation.
Copyright (C) 2011-2018 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 MKFS_FAT_H_INCLUDED
#define MKFS_FAT_H_INCLUDED
#include "mkexfat.h"
extern const struct fs_object fat;
#endif /* ifndef MKFS_FAT_H_INCLUDED */

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/*
main.c (15.08.10)
Creates exFAT file system.
Free exFAT implementation.
Copyright (C) 2011-2018 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.
*/
#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>
#include <inttypes.h>
#include <stdio.h>
#include <string.h>
#include <limits.h>
const struct fs_object* objects[] =
{
&vbr,
&vbr,
&fat,
/* clusters heap */
&cbm,
&uct,
&rootdir,
NULL,
};
static struct
{
int sector_bits;
int spc_bits;
off_t volume_size;
le16_t volume_label[EXFAT_ENAME_MAX + 1];
uint32_t volume_serial;
uint64_t first_sector;
}
param;
int get_sector_bits(void)
{
return param.sector_bits;
}
int get_spc_bits(void)
{
return param.spc_bits;
}
off_t get_volume_size(void)
{
return param.volume_size;
}
const le16_t* get_volume_label(void)
{
return param.volume_label;
}
uint32_t get_volume_serial(void)
{
return param.volume_serial;
}
uint64_t get_first_sector(void)
{
return param.first_sector;
}
int get_sector_size(void)
{
return 1 << get_sector_bits();
}
int get_cluster_size(void)
{
return get_sector_size() << get_spc_bits();
}
static int setup_spc_bits(int sector_bits, int user_defined, off_t volume_size)
{
int i;
if (user_defined != -1)
{
off_t cluster_size = 1 << sector_bits << user_defined;
if (volume_size / cluster_size > EXFAT_LAST_DATA_CLUSTER)
{
struct exfat_human_bytes chb, vhb;
exfat_humanize_bytes(cluster_size, &chb);
exfat_humanize_bytes(volume_size, &vhb);
exfat_error("cluster size %"PRIu64" %s is too small for "
"%"PRIu64" %s volume, try -s %d",
chb.value, chb.unit,
vhb.value, vhb.unit,
1 << setup_spc_bits(sector_bits, -1, volume_size));
return -1;
}
return user_defined;
}
if (volume_size < 256ull * 1024 * 1024)
return MAX(0, 12 - sector_bits); /* 4 KB */
if (volume_size < 32ull * 1024 * 1024 * 1024)
return MAX(0, 15 - sector_bits); /* 32 KB */
for (i = 17; ; i++) /* 128 KB or more */
if (DIV_ROUND_UP(volume_size, 1 << i) <= EXFAT_LAST_DATA_CLUSTER)
return MAX(0, i - sector_bits);
}
static int setup_volume_label(le16_t label[EXFAT_ENAME_MAX + 1], const char* s)
{
memset(label, 0, (EXFAT_ENAME_MAX + 1) * sizeof(le16_t));
if (s == NULL)
return 0;
return utf8_to_utf16(label, s, EXFAT_ENAME_MAX + 1, strlen(s));
}
static uint32_t setup_volume_serial(uint32_t user_defined)
{
struct timeval now;
if (user_defined != 0)
return user_defined;
if (gettimeofday(&now, NULL) != 0)
{
exfat_error("failed to form volume id");
return 0;
}
return (now.tv_sec << 20) | now.tv_usec;
}
static int setup(struct exfat_dev* dev, int sector_bits, int spc_bits,
const char* volume_label, uint32_t volume_serial,
uint64_t first_sector)
{
param.sector_bits = sector_bits;
param.first_sector = first_sector;
param.volume_size = exfat_get_size(dev);
param.spc_bits = setup_spc_bits(sector_bits, spc_bits, param.volume_size);
if (param.spc_bits == -1)
return 1;
if (setup_volume_label(param.volume_label, volume_label) != 0)
return 1;
param.volume_serial = setup_volume_serial(volume_serial);
if (param.volume_serial == 0)
return 1;
return mkfs(dev, param.volume_size);
}
static int logarithm2(int n)
{
int i;
for (i = 0; i < sizeof(int) * CHAR_BIT - 1; i++)
if ((1 << i) == n)
return i;
return -1;
}
static void usage(const char* prog)
{
fprintf(stderr, "Usage: %s [-i volume-id] [-n label] "
"[-p partition-first-sector] "
"[-s sectors-per-cluster] [-V] <device>\n", prog);
exit(1);
}
int main(int argc, char* argv[])
{
const char* spec = NULL;
int opt;
int spc_bits = -1;
const char* volume_label = NULL;
uint32_t volume_serial = 0;
uint64_t first_sector = 0;
struct exfat_dev* dev;
printf("mkexfatfs %s\n", VERSION);
while ((opt = getopt(argc, argv, "i:n:p:s:V")) != -1)
{
switch (opt)
{
case 'i':
volume_serial = strtol(optarg, NULL, 16);
break;
case 'n':
volume_label = optarg;
break;
case 'p':
first_sector = strtoll(optarg, NULL, 10);
break;
case 's':
spc_bits = logarithm2(atoi(optarg));
if (spc_bits < 0)
{
exfat_error("invalid option value: '%s'", optarg);
return 1;
}
break;
case 'V':
puts("Copyright (C) 2011-2018 Andrew Nayenko");
return 0;
default:
usage(argv[0]);
break;
}
}
if (argc - optind != 1)
usage(argv[0]);
spec = argv[optind];
dev = exfat_open(spec, EXFAT_MODE_RW);
if (dev == NULL)
return 1;
if (setup(dev, 9, spc_bits, volume_label, volume_serial,
first_sector) != 0)
{
exfat_close(dev);
return 1;
}
if (exfat_close(dev) != 0)
return 1;
printf("File system created successfully.\n");
return 0;
}

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/*
mkexfat.c (22.04.12)
FS creation engine.
Free exFAT implementation.
Copyright (C) 2011-2018 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.
*/
#include "mkexfat.h"
#include <sys/types.h>
#include <unistd.h>
#include <inttypes.h>
#include <stdio.h>
#include <string.h>
static int check_size(off_t volume_size)
{
const struct fs_object** pp;
off_t position = 0;
for (pp = objects; *pp; pp++)
{
position = ROUND_UP(position, (*pp)->get_alignment());
position += (*pp)->get_size();
}
if (position > volume_size)
{
struct exfat_human_bytes vhb;
exfat_humanize_bytes(volume_size, &vhb);
exfat_error("too small device (%"PRIu64" %s)", vhb.value, vhb.unit);
return 1;
}
return 0;
}
static int erase_object(struct exfat_dev* dev, const void* block,
size_t block_size, off_t start, off_t size)
{
const off_t block_count = DIV_ROUND_UP(size, block_size);
off_t i;
if (exfat_seek(dev, start, SEEK_SET) == (off_t) -1)
{
exfat_error("seek to 0x%"PRIx64" failed", start);
return 1;
}
for (i = 0; i < size; i += block_size)
{
if (exfat_write(dev, block, MIN(size - i, block_size)) < 0)
{
exfat_error("failed to erase block %"PRIu64"/%"PRIu64
" at 0x%"PRIx64, i + 1, block_count, start);
return 1;
}
}
return 0;
}
static int erase(struct exfat_dev* dev)
{
const struct fs_object** pp;
off_t position = 0;
const size_t block_size = 1024 * 1024;
void* block = malloc(block_size);
if (block == NULL)
{
exfat_error("failed to allocate erase block of %zu bytes", block_size);
return 1;
}
memset(block, 0, block_size);
for (pp = objects; *pp; pp++)
{
position = ROUND_UP(position, (*pp)->get_alignment());
if (erase_object(dev, block, block_size, position,
(*pp)->get_size()) != 0)
{
free(block);
return 1;
}
position += (*pp)->get_size();
}
free(block);
return 0;
}
static int create(struct exfat_dev* dev)
{
const struct fs_object** pp;
off_t position = 0;
for (pp = objects; *pp; pp++)
{
position = ROUND_UP(position, (*pp)->get_alignment());
if (exfat_seek(dev, position, SEEK_SET) == (off_t) -1)
{
exfat_error("seek to 0x%"PRIx64" failed", position);
return 1;
}
if ((*pp)->write(dev) != 0)
return 1;
position += (*pp)->get_size();
}
return 0;
}
int mkfs(struct exfat_dev* dev, off_t volume_size)
{
if (check_size(volume_size) != 0)
return 1;
fputs("Creating... ", stdout);
fflush(stdout);
if (erase(dev) != 0)
return 1;
if (create(dev) != 0)
return 1;
puts("done.");
fputs("Flushing... ", stdout);
fflush(stdout);
if (exfat_fsync(dev) != 0)
return 1;
puts("done.");
return 0;
}
off_t get_position(const struct fs_object* object)
{
const struct fs_object** pp;
off_t position = 0;
for (pp = objects; *pp; pp++)
{
position = ROUND_UP(position, (*pp)->get_alignment());
if (*pp == object)
return position;
position += (*pp)->get_size();
}
exfat_bug("unknown object");
}

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/*
mkexfat.h (09.11.10)
FS creation engine.
Free exFAT implementation.
Copyright (C) 2011-2018 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 MKFS_MKEXFAT_H_INCLUDED
#define MKFS_MKEXFAT_H_INCLUDED
#include <exfat.h>
struct fs_object
{
off_t (*get_alignment)(void);
off_t (*get_size)(void);
int (*write)(struct exfat_dev* dev);
};
extern const struct fs_object* objects[];
int get_sector_bits(void);
int get_spc_bits(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, off_t volume_size);
off_t get_position(const struct fs_object* object);
#endif /* ifndef MKFS_MKEXFAT_H_INCLUDED */

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.\" Copyright (C) 2011-2018 Andrew Nayenko
.\"
.TH MKEXFATFS 8 "January 2014"
.SH NAME
.B mkexfatfs
\- create an exFAT file system
.SH SYNOPSIS
.B mkexfatfs
[
.B \-i
.I volume-id
]
[
.B \-n
.I volume-name
]
[
.B \-p
.I partition-first-sector
]
[
.B \-s
.I sectors-per-cluster
]
[
.B \-V
]
.I device
.SH DESCRIPTION
.B mkexfatfs
creates an exFAT file system on a block device.
.I 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:
.TP
.BI \-i " volume-id"
A 32-bit hexadecimal number. By default a value based on current time is set.
.TP
.BI \-n " volume-name"
Volume name (label), up to 15 characters. By default no label is set.
.TP
.BI \-p " partition-first-sector"
First sector of the partition starting from the beginning of the whole disk.
exFAT super block has a field for this value but in fact it's optional and
does not affect anything. Default is 0.
.TP
.BI \-s " sectors-per-cluster"
Number of physical sectors per cluster (cluster is an allocation unit in
exFAT). Must be a power of 2, i.e. 1, 2, 4, 8, etc. Cluster size can not
exceed 32 MB. Default cluster sizes are:
4 KB if volume size is less than 256 MB,
32 KB if volume size is from 256 MB to 32 GB,
128 KB if volume size is 32 GB or larger.
.TP
.BI \-V
Print version and copyright.
.SH EXIT CODES
Zero is returned on successful creation. Any other code means an error.
.SH AUTHOR
Andrew Nayenko
.SH SEE ALSO
.BR mkfs (8), fdisk (8)

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/*
rootdir.c (09.11.10)
Root directory creation code.
Free exFAT implementation.
Copyright (C) 2011-2018 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.
*/
#include "rootdir.h"
#include "uct.h"
#include "cbm.h"
#include "uctc.h"
#include <string.h>
static off_t rootdir_alignment(void)
{
return get_cluster_size();
}
static off_t rootdir_size(void)
{
return get_cluster_size();
}
static void init_label_entry(struct exfat_entry_label* label_entry)
{
memset(label_entry, 0, sizeof(struct exfat_entry_label));
label_entry->type = EXFAT_ENTRY_LABEL ^ EXFAT_ENTRY_VALID;
if (utf16_length(get_volume_label()) == 0)
return;
memcpy(label_entry->name, get_volume_label(),
EXFAT_ENAME_MAX * sizeof(le16_t));
label_entry->length = utf16_length(get_volume_label());
label_entry->type |= EXFAT_ENTRY_VALID;
}
static void init_bitmap_entry(struct exfat_entry_bitmap* bitmap_entry)
{
memset(bitmap_entry, 0, sizeof(struct exfat_entry_bitmap));
bitmap_entry->type = EXFAT_ENTRY_BITMAP;
bitmap_entry->start_cluster = cpu_to_le32(EXFAT_FIRST_DATA_CLUSTER);
bitmap_entry->size = cpu_to_le64(cbm.get_size());
}
static void init_upcase_entry(struct exfat_entry_upcase* upcase_entry)
{
size_t i;
uint32_t sum = 0;
for (i = 0; i < sizeof(upcase_table); i++)
sum = ((sum << 31) | (sum >> 1)) + upcase_table[i];
memset(upcase_entry, 0, sizeof(struct exfat_entry_upcase));
upcase_entry->type = EXFAT_ENTRY_UPCASE;
upcase_entry->checksum = cpu_to_le32(sum);
upcase_entry->start_cluster = cpu_to_le32(
(get_position(&uct) - get_position(&cbm)) / get_cluster_size() +
EXFAT_FIRST_DATA_CLUSTER);
upcase_entry->size = cpu_to_le64(sizeof(upcase_table));
}
static int rootdir_write(struct exfat_dev* dev)
{
struct exfat_entry_label label_entry;
struct exfat_entry_bitmap bitmap_entry;
struct exfat_entry_upcase upcase_entry;
init_label_entry(&label_entry);
init_bitmap_entry(&bitmap_entry);
init_upcase_entry(&upcase_entry);
if (exfat_write(dev, &label_entry, sizeof(struct exfat_entry)) < 0)
return 1;
if (exfat_write(dev, &bitmap_entry, sizeof(struct exfat_entry)) < 0)
return 1;
if (exfat_write(dev, &upcase_entry, sizeof(struct exfat_entry)) < 0)
return 1;
return 0;
}
const struct fs_object rootdir =
{
.get_alignment = rootdir_alignment,
.get_size = rootdir_size,
.write = rootdir_write,
};

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/*
rootdir.h (09.11.10)
Root directory creation code.
Free exFAT implementation.
Copyright (C) 2011-2018 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 MKFS_ROOTDIR_H_INCLUDED
#define MKFS_ROOTDIR_H_INCLUDED
#include "mkexfat.h"
extern const struct fs_object rootdir;
#endif /* ifndef MKFS_ROOTDIR_H_INCLUDED */

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/*
uct.c (09.11.10)
Upper Case Table creation code.
Free exFAT implementation.
Copyright (C) 2011-2018 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.
*/
#include "uct.h"
#include "uctc.h"
static off_t uct_alignment(void)
{
return get_cluster_size();
}
static off_t uct_size(void)
{
return sizeof(upcase_table);
}
static int uct_write(struct exfat_dev* dev)
{
if (exfat_write(dev, upcase_table, sizeof(upcase_table)) < 0)
{
exfat_error("failed to write upcase table of %zu bytes",
sizeof(upcase_table));
return 1;
}
return 0;
}
const struct fs_object uct =
{
.get_alignment = uct_alignment,
.get_size = uct_size,
.write = uct_write,
};

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/*
uct.h (09.11.10)
Upper Case Table creation code.
Free exFAT implementation.
Copyright (C) 2011-2018 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 MKFS_UCT_H_INCLUDED
#define MKFS_UCT_H_INCLUDED
#include "mkexfat.h"
extern const struct fs_object uct;
#endif /* ifndef MKFS_UCT_H_INCLUDED */

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/*
uctc.c (30.04.12)
Upper Case Table contents.
Free exFAT implementation.
Copyright (C) 2011-2018 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.
*/
#include "uctc.h"
uint8_t upcase_table[5836] =
{
0x00, 0x00, 0x01, 0x00, 0x02, 0x00, 0x03, 0x00,
0x04, 0x00, 0x05, 0x00, 0x06, 0x00, 0x07, 0x00,
0x08, 0x00, 0x09, 0x00, 0x0a, 0x00, 0x0b, 0x00,
0x0c, 0x00, 0x0d, 0x00, 0x0e, 0x00, 0x0f, 0x00,
0x10, 0x00, 0x11, 0x00, 0x12, 0x00, 0x13, 0x00,
0x14, 0x00, 0x15, 0x00, 0x16, 0x00, 0x17, 0x00,
0x18, 0x00, 0x19, 0x00, 0x1a, 0x00, 0x1b, 0x00,
0x1c, 0x00, 0x1d, 0x00, 0x1e, 0x00, 0x1f, 0x00,
0x20, 0x00, 0x21, 0x00, 0x22, 0x00, 0x23, 0x00,
0x24, 0x00, 0x25, 0x00, 0x26, 0x00, 0x27, 0x00,
0x28, 0x00, 0x29, 0x00, 0x2a, 0x00, 0x2b, 0x00,
0x2c, 0x00, 0x2d, 0x00, 0x2e, 0x00, 0x2f, 0x00,
0x30, 0x00, 0x31, 0x00, 0x32, 0x00, 0x33, 0x00,
0x34, 0x00, 0x35, 0x00, 0x36, 0x00, 0x37, 0x00,
0x38, 0x00, 0x39, 0x00, 0x3a, 0x00, 0x3b, 0x00,
0x3c, 0x00, 0x3d, 0x00, 0x3e, 0x00, 0x3f, 0x00,
0x40, 0x00, 0x41, 0x00, 0x42, 0x00, 0x43, 0x00,
0x44, 0x00, 0x45, 0x00, 0x46, 0x00, 0x47, 0x00,
0x48, 0x00, 0x49, 0x00, 0x4a, 0x00, 0x4b, 0x00,
0x4c, 0x00, 0x4d, 0x00, 0x4e, 0x00, 0x4f, 0x00,
0x50, 0x00, 0x51, 0x00, 0x52, 0x00, 0x53, 0x00,
0x54, 0x00, 0x55, 0x00, 0x56, 0x00, 0x57, 0x00,
0x58, 0x00, 0x59, 0x00, 0x5a, 0x00, 0x5b, 0x00,
0x5c, 0x00, 0x5d, 0x00, 0x5e, 0x00, 0x5f, 0x00,
0x60, 0x00, 0x41, 0x00, 0x42, 0x00, 0x43, 0x00,
0x44, 0x00, 0x45, 0x00, 0x46, 0x00, 0x47, 0x00,
0x48, 0x00, 0x49, 0x00, 0x4a, 0x00, 0x4b, 0x00,
0x4c, 0x00, 0x4d, 0x00, 0x4e, 0x00, 0x4f, 0x00,
0x50, 0x00, 0x51, 0x00, 0x52, 0x00, 0x53, 0x00,
0x54, 0x00, 0x55, 0x00, 0x56, 0x00, 0x57, 0x00,
0x58, 0x00, 0x59, 0x00, 0x5a, 0x00, 0x7b, 0x00,
0x7c, 0x00, 0x7d, 0x00, 0x7e, 0x00, 0x7f, 0x00,
0x80, 0x00, 0x81, 0x00, 0x82, 0x00, 0x83, 0x00,
0x84, 0x00, 0x85, 0x00, 0x86, 0x00, 0x87, 0x00,
0x88, 0x00, 0x89, 0x00, 0x8a, 0x00, 0x8b, 0x00,
0x8c, 0x00, 0x8d, 0x00, 0x8e, 0x00, 0x8f, 0x00,
0x90, 0x00, 0x91, 0x00, 0x92, 0x00, 0x93, 0x00,
0x94, 0x00, 0x95, 0x00, 0x96, 0x00, 0x97, 0x00,
0x98, 0x00, 0x99, 0x00, 0x9a, 0x00, 0x9b, 0x00,
0x9c, 0x00, 0x9d, 0x00, 0x9e, 0x00, 0x9f, 0x00,
0xa0, 0x00, 0xa1, 0x00, 0xa2, 0x00, 0xa3, 0x00,
0xa4, 0x00, 0xa5, 0x00, 0xa6, 0x00, 0xa7, 0x00,
0xa8, 0x00, 0xa9, 0x00, 0xaa, 0x00, 0xab, 0x00,
0xac, 0x00, 0xad, 0x00, 0xae, 0x00, 0xaf, 0x00,
0xb0, 0x00, 0xb1, 0x00, 0xb2, 0x00, 0xb3, 0x00,
0xb4, 0x00, 0xb5, 0x00, 0xb6, 0x00, 0xb7, 0x00,
0xb8, 0x00, 0xb9, 0x00, 0xba, 0x00, 0xbb, 0x00,
0xbc, 0x00, 0xbd, 0x00, 0xbe, 0x00, 0xbf, 0x00,
0xc0, 0x00, 0xc1, 0x00, 0xc2, 0x00, 0xc3, 0x00,
0xc4, 0x00, 0xc5, 0x00, 0xc6, 0x00, 0xc7, 0x00,
0xc8, 0x00, 0xc9, 0x00, 0xca, 0x00, 0xcb, 0x00,
0xcc, 0x00, 0xcd, 0x00, 0xce, 0x00, 0xcf, 0x00,
0xd0, 0x00, 0xd1, 0x00, 0xd2, 0x00, 0xd3, 0x00,
0xd4, 0x00, 0xd5, 0x00, 0xd6, 0x00, 0xd7, 0x00,
0xd8, 0x00, 0xd9, 0x00, 0xda, 0x00, 0xdb, 0x00,
0xdc, 0x00, 0xdd, 0x00, 0xde, 0x00, 0xdf, 0x00,
0xc0, 0x00, 0xc1, 0x00, 0xc2, 0x00, 0xc3, 0x00,
0xc4, 0x00, 0xc5, 0x00, 0xc6, 0x00, 0xc7, 0x00,
0xc8, 0x00, 0xc9, 0x00, 0xca, 0x00, 0xcb, 0x00,
0xcc, 0x00, 0xcd, 0x00, 0xce, 0x00, 0xcf, 0x00,
0xd0, 0x00, 0xd1, 0x00, 0xd2, 0x00, 0xd3, 0x00,
0xd4, 0x00, 0xd5, 0x00, 0xd6, 0x00, 0xf7, 0x00,
0xd8, 0x00, 0xd9, 0x00, 0xda, 0x00, 0xdb, 0x00,
0xdc, 0x00, 0xdd, 0x00, 0xde, 0x00, 0x78, 0x01,
0x00, 0x01, 0x00, 0x01, 0x02, 0x01, 0x02, 0x01,
0x04, 0x01, 0x04, 0x01, 0x06, 0x01, 0x06, 0x01,
0x08, 0x01, 0x08, 0x01, 0x0a, 0x01, 0x0a, 0x01,
0x0c, 0x01, 0x0c, 0x01, 0x0e, 0x01, 0x0e, 0x01,
0x10, 0x01, 0x10, 0x01, 0x12, 0x01, 0x12, 0x01,
0x14, 0x01, 0x14, 0x01, 0x16, 0x01, 0x16, 0x01,
0x18, 0x01, 0x18, 0x01, 0x1a, 0x01, 0x1a, 0x01,
0x1c, 0x01, 0x1c, 0x01, 0x1e, 0x01, 0x1e, 0x01,
0x20, 0x01, 0x20, 0x01, 0x22, 0x01, 0x22, 0x01,
0x24, 0x01, 0x24, 0x01, 0x26, 0x01, 0x26, 0x01,
0x28, 0x01, 0x28, 0x01, 0x2a, 0x01, 0x2a, 0x01,
0x2c, 0x01, 0x2c, 0x01, 0x2e, 0x01, 0x2e, 0x01,
0x30, 0x01, 0x31, 0x01, 0x32, 0x01, 0x32, 0x01,
0x34, 0x01, 0x34, 0x01, 0x36, 0x01, 0x36, 0x01,
0x38, 0x01, 0x39, 0x01, 0x39, 0x01, 0x3b, 0x01,
0x3b, 0x01, 0x3d, 0x01, 0x3d, 0x01, 0x3f, 0x01,
0x3f, 0x01, 0x41, 0x01, 0x41, 0x01, 0x43, 0x01,
0x43, 0x01, 0x45, 0x01, 0x45, 0x01, 0x47, 0x01,
0x47, 0x01, 0x49, 0x01, 0x4a, 0x01, 0x4a, 0x01,
0x4c, 0x01, 0x4c, 0x01, 0x4e, 0x01, 0x4e, 0x01,
0x50, 0x01, 0x50, 0x01, 0x52, 0x01, 0x52, 0x01,
0x54, 0x01, 0x54, 0x01, 0x56, 0x01, 0x56, 0x01,
0x58, 0x01, 0x58, 0x01, 0x5a, 0x01, 0x5a, 0x01,
0x5c, 0x01, 0x5c, 0x01, 0x5e, 0x01, 0x5e, 0x01,
0x60, 0x01, 0x60, 0x01, 0x62, 0x01, 0x62, 0x01,
0x64, 0x01, 0x64, 0x01, 0x66, 0x01, 0x66, 0x01,
0x68, 0x01, 0x68, 0x01, 0x6a, 0x01, 0x6a, 0x01,
0x6c, 0x01, 0x6c, 0x01, 0x6e, 0x01, 0x6e, 0x01,
0x70, 0x01, 0x70, 0x01, 0x72, 0x01, 0x72, 0x01,
0x74, 0x01, 0x74, 0x01, 0x76, 0x01, 0x76, 0x01,
0x78, 0x01, 0x79, 0x01, 0x79, 0x01, 0x7b, 0x01,
0x7b, 0x01, 0x7d, 0x01, 0x7d, 0x01, 0x7f, 0x01,
0x43, 0x02, 0x81, 0x01, 0x82, 0x01, 0x82, 0x01,
0x84, 0x01, 0x84, 0x01, 0x86, 0x01, 0x87, 0x01,
0x87, 0x01, 0x89, 0x01, 0x8a, 0x01, 0x8b, 0x01,
0x8b, 0x01, 0x8d, 0x01, 0x8e, 0x01, 0x8f, 0x01,
0x90, 0x01, 0x91, 0x01, 0x91, 0x01, 0x93, 0x01,
0x94, 0x01, 0xf6, 0x01, 0x96, 0x01, 0x97, 0x01,
0x98, 0x01, 0x98, 0x01, 0x3d, 0x02, 0x9b, 0x01,
0x9c, 0x01, 0x9d, 0x01, 0x20, 0x02, 0x9f, 0x01,
0xa0, 0x01, 0xa0, 0x01, 0xa2, 0x01, 0xa2, 0x01,
0xa4, 0x01, 0xa4, 0x01, 0xa6, 0x01, 0xa7, 0x01,
0xa7, 0x01, 0xa9, 0x01, 0xaa, 0x01, 0xab, 0x01,
0xac, 0x01, 0xac, 0x01, 0xae, 0x01, 0xaf, 0x01,
0xaf, 0x01, 0xb1, 0x01, 0xb2, 0x01, 0xb3, 0x01,
0xb3, 0x01, 0xb5, 0x01, 0xb5, 0x01, 0xb7, 0x01,
0xb8, 0x01, 0xb8, 0x01, 0xba, 0x01, 0xbb, 0x01,
0xbc, 0x01, 0xbc, 0x01, 0xbe, 0x01, 0xf7, 0x01,
0xc0, 0x01, 0xc1, 0x01, 0xc2, 0x01, 0xc3, 0x01,
0xc4, 0x01, 0xc5, 0x01, 0xc4, 0x01, 0xc7, 0x01,
0xc8, 0x01, 0xc7, 0x01, 0xca, 0x01, 0xcb, 0x01,
0xca, 0x01, 0xcd, 0x01, 0xcd, 0x01, 0xcf, 0x01,
0xcf, 0x01, 0xd1, 0x01, 0xd1, 0x01, 0xd3, 0x01,
0xd3, 0x01, 0xd5, 0x01, 0xd5, 0x01, 0xd7, 0x01,
0xd7, 0x01, 0xd9, 0x01, 0xd9, 0x01, 0xdb, 0x01,
0xdb, 0x01, 0x8e, 0x01, 0xde, 0x01, 0xde, 0x01,
0xe0, 0x01, 0xe0, 0x01, 0xe2, 0x01, 0xe2, 0x01,
0xe4, 0x01, 0xe4, 0x01, 0xe6, 0x01, 0xe6, 0x01,
0xe8, 0x01, 0xe8, 0x01, 0xea, 0x01, 0xea, 0x01,
0xec, 0x01, 0xec, 0x01, 0xee, 0x01, 0xee, 0x01,
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0x80, 0x1d, 0x81, 0x1d, 0x82, 0x1d, 0x83, 0x1d,
0x84, 0x1d, 0x85, 0x1d, 0x86, 0x1d, 0x87, 0x1d,
0x88, 0x1d, 0x89, 0x1d, 0x8a, 0x1d, 0x8b, 0x1d,
0x8c, 0x1d, 0x8d, 0x1d, 0x8e, 0x1d, 0x8f, 0x1d,
0x90, 0x1d, 0x91, 0x1d, 0x92, 0x1d, 0x93, 0x1d,
0x94, 0x1d, 0x95, 0x1d, 0x96, 0x1d, 0x97, 0x1d,
0x98, 0x1d, 0x99, 0x1d, 0x9a, 0x1d, 0x9b, 0x1d,
0x9c, 0x1d, 0x9d, 0x1d, 0x9e, 0x1d, 0x9f, 0x1d,
0xa0, 0x1d, 0xa1, 0x1d, 0xa2, 0x1d, 0xa3, 0x1d,
0xa4, 0x1d, 0xa5, 0x1d, 0xa6, 0x1d, 0xa7, 0x1d,
0xa8, 0x1d, 0xa9, 0x1d, 0xaa, 0x1d, 0xab, 0x1d,
0xac, 0x1d, 0xad, 0x1d, 0xae, 0x1d, 0xaf, 0x1d,
0xb0, 0x1d, 0xb1, 0x1d, 0xb2, 0x1d, 0xb3, 0x1d,
0xb4, 0x1d, 0xb5, 0x1d, 0xb6, 0x1d, 0xb7, 0x1d,
0xb8, 0x1d, 0xb9, 0x1d, 0xba, 0x1d, 0xbb, 0x1d,
0xbc, 0x1d, 0xbd, 0x1d, 0xbe, 0x1d, 0xbf, 0x1d,
0xc0, 0x1d, 0xc1, 0x1d, 0xc2, 0x1d, 0xc3, 0x1d,
0xc4, 0x1d, 0xc5, 0x1d, 0xc6, 0x1d, 0xc7, 0x1d,
0xc8, 0x1d, 0xc9, 0x1d, 0xca, 0x1d, 0xcb, 0x1d,
0xcc, 0x1d, 0xcd, 0x1d, 0xce, 0x1d, 0xcf, 0x1d,
0xd0, 0x1d, 0xd1, 0x1d, 0xd2, 0x1d, 0xd3, 0x1d,
0xd4, 0x1d, 0xd5, 0x1d, 0xd6, 0x1d, 0xd7, 0x1d,
0xd8, 0x1d, 0xd9, 0x1d, 0xda, 0x1d, 0xdb, 0x1d,
0xdc, 0x1d, 0xdd, 0x1d, 0xde, 0x1d, 0xdf, 0x1d,
0xe0, 0x1d, 0xe1, 0x1d, 0xe2, 0x1d, 0xe3, 0x1d,
0xe4, 0x1d, 0xe5, 0x1d, 0xe6, 0x1d, 0xe7, 0x1d,
0xe8, 0x1d, 0xe9, 0x1d, 0xea, 0x1d, 0xeb, 0x1d,
0xec, 0x1d, 0xed, 0x1d, 0xee, 0x1d, 0xef, 0x1d,
0xf0, 0x1d, 0xf1, 0x1d, 0xf2, 0x1d, 0xf3, 0x1d,
0xf4, 0x1d, 0xf5, 0x1d, 0xf6, 0x1d, 0xf7, 0x1d,
0xf8, 0x1d, 0xf9, 0x1d, 0xfa, 0x1d, 0xfb, 0x1d,
0xfc, 0x1d, 0xfd, 0x1d, 0xfe, 0x1d, 0xff, 0x1d,
0x00, 0x1e, 0x00, 0x1e, 0x02, 0x1e, 0x02, 0x1e,
0x04, 0x1e, 0x04, 0x1e, 0x06, 0x1e, 0x06, 0x1e,
0x08, 0x1e, 0x08, 0x1e, 0x0a, 0x1e, 0x0a, 0x1e,
0x0c, 0x1e, 0x0c, 0x1e, 0x0e, 0x1e, 0x0e, 0x1e,
0x10, 0x1e, 0x10, 0x1e, 0x12, 0x1e, 0x12, 0x1e,
0x14, 0x1e, 0x14, 0x1e, 0x16, 0x1e, 0x16, 0x1e,
0x18, 0x1e, 0x18, 0x1e, 0x1a, 0x1e, 0x1a, 0x1e,
0x1c, 0x1e, 0x1c, 0x1e, 0x1e, 0x1e, 0x1e, 0x1e,
0x20, 0x1e, 0x20, 0x1e, 0x22, 0x1e, 0x22, 0x1e,
0x24, 0x1e, 0x24, 0x1e, 0x26, 0x1e, 0x26, 0x1e,
0x28, 0x1e, 0x28, 0x1e, 0x2a, 0x1e, 0x2a, 0x1e,
0x2c, 0x1e, 0x2c, 0x1e, 0x2e, 0x1e, 0x2e, 0x1e,
0x30, 0x1e, 0x30, 0x1e, 0x32, 0x1e, 0x32, 0x1e,
0x34, 0x1e, 0x34, 0x1e, 0x36, 0x1e, 0x36, 0x1e,
0x38, 0x1e, 0x38, 0x1e, 0x3a, 0x1e, 0x3a, 0x1e,
0x3c, 0x1e, 0x3c, 0x1e, 0x3e, 0x1e, 0x3e, 0x1e,
0x40, 0x1e, 0x40, 0x1e, 0x42, 0x1e, 0x42, 0x1e,
0x44, 0x1e, 0x44, 0x1e, 0x46, 0x1e, 0x46, 0x1e,
0x48, 0x1e, 0x48, 0x1e, 0x4a, 0x1e, 0x4a, 0x1e,
0x4c, 0x1e, 0x4c, 0x1e, 0x4e, 0x1e, 0x4e, 0x1e,
0x50, 0x1e, 0x50, 0x1e, 0x52, 0x1e, 0x52, 0x1e,
0x54, 0x1e, 0x54, 0x1e, 0x56, 0x1e, 0x56, 0x1e,
0x58, 0x1e, 0x58, 0x1e, 0x5a, 0x1e, 0x5a, 0x1e,
0x5c, 0x1e, 0x5c, 0x1e, 0x5e, 0x1e, 0x5e, 0x1e,
0x60, 0x1e, 0x60, 0x1e, 0x62, 0x1e, 0x62, 0x1e,
0x64, 0x1e, 0x64, 0x1e, 0x66, 0x1e, 0x66, 0x1e,
0x68, 0x1e, 0x68, 0x1e, 0x6a, 0x1e, 0x6a, 0x1e,
0x6c, 0x1e, 0x6c, 0x1e, 0x6e, 0x1e, 0x6e, 0x1e,
0x70, 0x1e, 0x70, 0x1e, 0x72, 0x1e, 0x72, 0x1e,
0x74, 0x1e, 0x74, 0x1e, 0x76, 0x1e, 0x76, 0x1e,
0x78, 0x1e, 0x78, 0x1e, 0x7a, 0x1e, 0x7a, 0x1e,
0x7c, 0x1e, 0x7c, 0x1e, 0x7e, 0x1e, 0x7e, 0x1e,
0x80, 0x1e, 0x80, 0x1e, 0x82, 0x1e, 0x82, 0x1e,
0x84, 0x1e, 0x84, 0x1e, 0x86, 0x1e, 0x86, 0x1e,
0x88, 0x1e, 0x88, 0x1e, 0x8a, 0x1e, 0x8a, 0x1e,
0x8c, 0x1e, 0x8c, 0x1e, 0x8e, 0x1e, 0x8e, 0x1e,
0x90, 0x1e, 0x90, 0x1e, 0x92, 0x1e, 0x92, 0x1e,
0x94, 0x1e, 0x94, 0x1e, 0x96, 0x1e, 0x97, 0x1e,
0x98, 0x1e, 0x99, 0x1e, 0x9a, 0x1e, 0x9b, 0x1e,
0x9c, 0x1e, 0x9d, 0x1e, 0x9e, 0x1e, 0x9f, 0x1e,
0xa0, 0x1e, 0xa0, 0x1e, 0xa2, 0x1e, 0xa2, 0x1e,
0xa4, 0x1e, 0xa4, 0x1e, 0xa6, 0x1e, 0xa6, 0x1e,
0xa8, 0x1e, 0xa8, 0x1e, 0xaa, 0x1e, 0xaa, 0x1e,
0xac, 0x1e, 0xac, 0x1e, 0xae, 0x1e, 0xae, 0x1e,
0xb0, 0x1e, 0xb0, 0x1e, 0xb2, 0x1e, 0xb2, 0x1e,
0xb4, 0x1e, 0xb4, 0x1e, 0xb6, 0x1e, 0xb6, 0x1e,
0xb8, 0x1e, 0xb8, 0x1e, 0xba, 0x1e, 0xba, 0x1e,
0xbc, 0x1e, 0xbc, 0x1e, 0xbe, 0x1e, 0xbe, 0x1e,
0xc0, 0x1e, 0xc0, 0x1e, 0xc2, 0x1e, 0xc2, 0x1e,
0xc4, 0x1e, 0xc4, 0x1e, 0xc6, 0x1e, 0xc6, 0x1e,
0xc8, 0x1e, 0xc8, 0x1e, 0xca, 0x1e, 0xca, 0x1e,
0xcc, 0x1e, 0xcc, 0x1e, 0xce, 0x1e, 0xce, 0x1e,
0xd0, 0x1e, 0xd0, 0x1e, 0xd2, 0x1e, 0xd2, 0x1e,
0xd4, 0x1e, 0xd4, 0x1e, 0xd6, 0x1e, 0xd6, 0x1e,
0xd8, 0x1e, 0xd8, 0x1e, 0xda, 0x1e, 0xda, 0x1e,
0xdc, 0x1e, 0xdc, 0x1e, 0xde, 0x1e, 0xde, 0x1e,
0xe0, 0x1e, 0xe0, 0x1e, 0xe2, 0x1e, 0xe2, 0x1e,
0xe4, 0x1e, 0xe4, 0x1e, 0xe6, 0x1e, 0xe6, 0x1e,
0xe8, 0x1e, 0xe8, 0x1e, 0xea, 0x1e, 0xea, 0x1e,
0xec, 0x1e, 0xec, 0x1e, 0xee, 0x1e, 0xee, 0x1e,
0xf0, 0x1e, 0xf0, 0x1e, 0xf2, 0x1e, 0xf2, 0x1e,
0xf4, 0x1e, 0xf4, 0x1e, 0xf6, 0x1e, 0xf6, 0x1e,
0xf8, 0x1e, 0xf8, 0x1e, 0xfa, 0x1e, 0xfb, 0x1e,
0xfc, 0x1e, 0xfd, 0x1e, 0xfe, 0x1e, 0xff, 0x1e,
0x08, 0x1f, 0x09, 0x1f, 0x0a, 0x1f, 0x0b, 0x1f,
0x0c, 0x1f, 0x0d, 0x1f, 0x0e, 0x1f, 0x0f, 0x1f,
0x08, 0x1f, 0x09, 0x1f, 0x0a, 0x1f, 0x0b, 0x1f,
0x0c, 0x1f, 0x0d, 0x1f, 0x0e, 0x1f, 0x0f, 0x1f,
0x18, 0x1f, 0x19, 0x1f, 0x1a, 0x1f, 0x1b, 0x1f,
0x1c, 0x1f, 0x1d, 0x1f, 0x16, 0x1f, 0x17, 0x1f,
0x18, 0x1f, 0x19, 0x1f, 0x1a, 0x1f, 0x1b, 0x1f,
0x1c, 0x1f, 0x1d, 0x1f, 0x1e, 0x1f, 0x1f, 0x1f,
0x28, 0x1f, 0x29, 0x1f, 0x2a, 0x1f, 0x2b, 0x1f,
0x2c, 0x1f, 0x2d, 0x1f, 0x2e, 0x1f, 0x2f, 0x1f,
0x28, 0x1f, 0x29, 0x1f, 0x2a, 0x1f, 0x2b, 0x1f,
0x2c, 0x1f, 0x2d, 0x1f, 0x2e, 0x1f, 0x2f, 0x1f,
0x38, 0x1f, 0x39, 0x1f, 0x3a, 0x1f, 0x3b, 0x1f,
0x3c, 0x1f, 0x3d, 0x1f, 0x3e, 0x1f, 0x3f, 0x1f,
0x38, 0x1f, 0x39, 0x1f, 0x3a, 0x1f, 0x3b, 0x1f,
0x3c, 0x1f, 0x3d, 0x1f, 0x3e, 0x1f, 0x3f, 0x1f,
0x48, 0x1f, 0x49, 0x1f, 0x4a, 0x1f, 0x4b, 0x1f,
0x4c, 0x1f, 0x4d, 0x1f, 0x46, 0x1f, 0x47, 0x1f,
0x48, 0x1f, 0x49, 0x1f, 0x4a, 0x1f, 0x4b, 0x1f,
0x4c, 0x1f, 0x4d, 0x1f, 0x4e, 0x1f, 0x4f, 0x1f,
0x50, 0x1f, 0x59, 0x1f, 0x52, 0x1f, 0x5b, 0x1f,
0x54, 0x1f, 0x5d, 0x1f, 0x56, 0x1f, 0x5f, 0x1f,
0x58, 0x1f, 0x59, 0x1f, 0x5a, 0x1f, 0x5b, 0x1f,
0x5c, 0x1f, 0x5d, 0x1f, 0x5e, 0x1f, 0x5f, 0x1f,
0x68, 0x1f, 0x69, 0x1f, 0x6a, 0x1f, 0x6b, 0x1f,
0x6c, 0x1f, 0x6d, 0x1f, 0x6e, 0x1f, 0x6f, 0x1f,
0x68, 0x1f, 0x69, 0x1f, 0x6a, 0x1f, 0x6b, 0x1f,
0x6c, 0x1f, 0x6d, 0x1f, 0x6e, 0x1f, 0x6f, 0x1f,
0xba, 0x1f, 0xbb, 0x1f, 0xc8, 0x1f, 0xc9, 0x1f,
0xca, 0x1f, 0xcb, 0x1f, 0xda, 0x1f, 0xdb, 0x1f,
0xf8, 0x1f, 0xf9, 0x1f, 0xea, 0x1f, 0xeb, 0x1f,
0xfa, 0x1f, 0xfb, 0x1f, 0x7e, 0x1f, 0x7f, 0x1f,
0x88, 0x1f, 0x89, 0x1f, 0x8a, 0x1f, 0x8b, 0x1f,
0x8c, 0x1f, 0x8d, 0x1f, 0x8e, 0x1f, 0x8f, 0x1f,
0x88, 0x1f, 0x89, 0x1f, 0x8a, 0x1f, 0x8b, 0x1f,
0x8c, 0x1f, 0x8d, 0x1f, 0x8e, 0x1f, 0x8f, 0x1f,
0x98, 0x1f, 0x99, 0x1f, 0x9a, 0x1f, 0x9b, 0x1f,
0x9c, 0x1f, 0x9d, 0x1f, 0x9e, 0x1f, 0x9f, 0x1f,
0x98, 0x1f, 0x99, 0x1f, 0x9a, 0x1f, 0x9b, 0x1f,
0x9c, 0x1f, 0x9d, 0x1f, 0x9e, 0x1f, 0x9f, 0x1f,
0xa8, 0x1f, 0xa9, 0x1f, 0xaa, 0x1f, 0xab, 0x1f,
0xac, 0x1f, 0xad, 0x1f, 0xae, 0x1f, 0xaf, 0x1f,
0xa8, 0x1f, 0xa9, 0x1f, 0xaa, 0x1f, 0xab, 0x1f,
0xac, 0x1f, 0xad, 0x1f, 0xae, 0x1f, 0xaf, 0x1f,
0xb8, 0x1f, 0xb9, 0x1f, 0xb2, 0x1f, 0xbc, 0x1f,
0xb4, 0x1f, 0xb5, 0x1f, 0xb6, 0x1f, 0xb7, 0x1f,
0xb8, 0x1f, 0xb9, 0x1f, 0xba, 0x1f, 0xbb, 0x1f,
0xbc, 0x1f, 0xbd, 0x1f, 0xbe, 0x1f, 0xbf, 0x1f,
0xc0, 0x1f, 0xc1, 0x1f, 0xc2, 0x1f, 0xc3, 0x1f,
0xc4, 0x1f, 0xc5, 0x1f, 0xc6, 0x1f, 0xc7, 0x1f,
0xc8, 0x1f, 0xc9, 0x1f, 0xca, 0x1f, 0xcb, 0x1f,
0xc3, 0x1f, 0xcd, 0x1f, 0xce, 0x1f, 0xcf, 0x1f,
0xd8, 0x1f, 0xd9, 0x1f, 0xd2, 0x1f, 0xd3, 0x1f,
0xd4, 0x1f, 0xd5, 0x1f, 0xd6, 0x1f, 0xd7, 0x1f,
0xd8, 0x1f, 0xd9, 0x1f, 0xda, 0x1f, 0xdb, 0x1f,
0xdc, 0x1f, 0xdd, 0x1f, 0xde, 0x1f, 0xdf, 0x1f,
0xe8, 0x1f, 0xe9, 0x1f, 0xe2, 0x1f, 0xe3, 0x1f,
0xe4, 0x1f, 0xec, 0x1f, 0xe6, 0x1f, 0xe7, 0x1f,
0xe8, 0x1f, 0xe9, 0x1f, 0xea, 0x1f, 0xeb, 0x1f,
0xec, 0x1f, 0xed, 0x1f, 0xee, 0x1f, 0xef, 0x1f,
0xf0, 0x1f, 0xf1, 0x1f, 0xf2, 0x1f, 0xf3, 0x1f,
0xf4, 0x1f, 0xf5, 0x1f, 0xf6, 0x1f, 0xf7, 0x1f,
0xf8, 0x1f, 0xf9, 0x1f, 0xfa, 0x1f, 0xfb, 0x1f,
0xf3, 0x1f, 0xfd, 0x1f, 0xfe, 0x1f, 0xff, 0x1f,
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0x04, 0x20, 0x05, 0x20, 0x06, 0x20, 0x07, 0x20,
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0x14, 0x20, 0x15, 0x20, 0x16, 0x20, 0x17, 0x20,
0x18, 0x20, 0x19, 0x20, 0x1a, 0x20, 0x1b, 0x20,
0x1c, 0x20, 0x1d, 0x20, 0x1e, 0x20, 0x1f, 0x20,
0x20, 0x20, 0x21, 0x20, 0x22, 0x20, 0x23, 0x20,
0x24, 0x20, 0x25, 0x20, 0x26, 0x20, 0x27, 0x20,
0x28, 0x20, 0x29, 0x20, 0x2a, 0x20, 0x2b, 0x20,
0x2c, 0x20, 0x2d, 0x20, 0x2e, 0x20, 0x2f, 0x20,
0x30, 0x20, 0x31, 0x20, 0x32, 0x20, 0x33, 0x20,
0x34, 0x20, 0x35, 0x20, 0x36, 0x20, 0x37, 0x20,
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0x3c, 0x20, 0x3d, 0x20, 0x3e, 0x20, 0x3f, 0x20,
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0x74, 0x20, 0x75, 0x20, 0x76, 0x20, 0x77, 0x20,
0x78, 0x20, 0x79, 0x20, 0x7a, 0x20, 0x7b, 0x20,
0x7c, 0x20, 0x7d, 0x20, 0x7e, 0x20, 0x7f, 0x20,
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0x84, 0x20, 0x85, 0x20, 0x86, 0x20, 0x87, 0x20,
0x88, 0x20, 0x89, 0x20, 0x8a, 0x20, 0x8b, 0x20,
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0x94, 0x20, 0x95, 0x20, 0x96, 0x20, 0x97, 0x20,
0x98, 0x20, 0x99, 0x20, 0x9a, 0x20, 0x9b, 0x20,
0x9c, 0x20, 0x9d, 0x20, 0x9e, 0x20, 0x9f, 0x20,
0xa0, 0x20, 0xa1, 0x20, 0xa2, 0x20, 0xa3, 0x20,
0xa4, 0x20, 0xa5, 0x20, 0xa6, 0x20, 0xa7, 0x20,
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0xcc, 0x20, 0xcd, 0x20, 0xce, 0x20, 0xcf, 0x20,
0xd0, 0x20, 0xd1, 0x20, 0xd2, 0x20, 0xd3, 0x20,
0xd4, 0x20, 0xd5, 0x20, 0xd6, 0x20, 0xd7, 0x20,
0xd8, 0x20, 0xd9, 0x20, 0xda, 0x20, 0xdb, 0x20,
0xdc, 0x20, 0xdd, 0x20, 0xde, 0x20, 0xdf, 0x20,
0xe0, 0x20, 0xe1, 0x20, 0xe2, 0x20, 0xe3, 0x20,
0xe4, 0x20, 0xe5, 0x20, 0xe6, 0x20, 0xe7, 0x20,
0xe8, 0x20, 0xe9, 0x20, 0xea, 0x20, 0xeb, 0x20,
0xec, 0x20, 0xed, 0x20, 0xee, 0x20, 0xef, 0x20,
0xf0, 0x20, 0xf1, 0x20, 0xf2, 0x20, 0xf3, 0x20,
0xf4, 0x20, 0xf5, 0x20, 0xf6, 0x20, 0xf7, 0x20,
0xf8, 0x20, 0xf9, 0x20, 0xfa, 0x20, 0xfb, 0x20,
0xfc, 0x20, 0xfd, 0x20, 0xfe, 0x20, 0xff, 0x20,
0x00, 0x21, 0x01, 0x21, 0x02, 0x21, 0x03, 0x21,
0x04, 0x21, 0x05, 0x21, 0x06, 0x21, 0x07, 0x21,
0x08, 0x21, 0x09, 0x21, 0x0a, 0x21, 0x0b, 0x21,
0x0c, 0x21, 0x0d, 0x21, 0x0e, 0x21, 0x0f, 0x21,
0x10, 0x21, 0x11, 0x21, 0x12, 0x21, 0x13, 0x21,
0x14, 0x21, 0x15, 0x21, 0x16, 0x21, 0x17, 0x21,
0x18, 0x21, 0x19, 0x21, 0x1a, 0x21, 0x1b, 0x21,
0x1c, 0x21, 0x1d, 0x21, 0x1e, 0x21, 0x1f, 0x21,
0x20, 0x21, 0x21, 0x21, 0x22, 0x21, 0x23, 0x21,
0x24, 0x21, 0x25, 0x21, 0x26, 0x21, 0x27, 0x21,
0x28, 0x21, 0x29, 0x21, 0x2a, 0x21, 0x2b, 0x21,
0x2c, 0x21, 0x2d, 0x21, 0x2e, 0x21, 0x2f, 0x21,
0x30, 0x21, 0x31, 0x21, 0x32, 0x21, 0x33, 0x21,
0x34, 0x21, 0x35, 0x21, 0x36, 0x21, 0x37, 0x21,
0x38, 0x21, 0x39, 0x21, 0x3a, 0x21, 0x3b, 0x21,
0x3c, 0x21, 0x3d, 0x21, 0x3e, 0x21, 0x3f, 0x21,
0x40, 0x21, 0x41, 0x21, 0x42, 0x21, 0x43, 0x21,
0x44, 0x21, 0x45, 0x21, 0x46, 0x21, 0x47, 0x21,
0x48, 0x21, 0x49, 0x21, 0x4a, 0x21, 0x4b, 0x21,
0x4c, 0x21, 0x4d, 0x21, 0x32, 0x21, 0x4f, 0x21,
0x50, 0x21, 0x51, 0x21, 0x52, 0x21, 0x53, 0x21,
0x54, 0x21, 0x55, 0x21, 0x56, 0x21, 0x57, 0x21,
0x58, 0x21, 0x59, 0x21, 0x5a, 0x21, 0x5b, 0x21,
0x5c, 0x21, 0x5d, 0x21, 0x5e, 0x21, 0x5f, 0x21,
0x60, 0x21, 0x61, 0x21, 0x62, 0x21, 0x63, 0x21,
0x64, 0x21, 0x65, 0x21, 0x66, 0x21, 0x67, 0x21,
0x68, 0x21, 0x69, 0x21, 0x6a, 0x21, 0x6b, 0x21,
0x6c, 0x21, 0x6d, 0x21, 0x6e, 0x21, 0x6f, 0x21,
0x60, 0x21, 0x61, 0x21, 0x62, 0x21, 0x63, 0x21,
0x64, 0x21, 0x65, 0x21, 0x66, 0x21, 0x67, 0x21,
0x68, 0x21, 0x69, 0x21, 0x6a, 0x21, 0x6b, 0x21,
0x6c, 0x21, 0x6d, 0x21, 0x6e, 0x21, 0x6f, 0x21,
0x80, 0x21, 0x81, 0x21, 0x82, 0x21, 0x83, 0x21,
0x83, 0x21, 0xff, 0xff, 0x4b, 0x03, 0xb6, 0x24,
0xb7, 0x24, 0xb8, 0x24, 0xb9, 0x24, 0xba, 0x24,
0xbb, 0x24, 0xbc, 0x24, 0xbd, 0x24, 0xbe, 0x24,
0xbf, 0x24, 0xc0, 0x24, 0xc1, 0x24, 0xc2, 0x24,
0xc3, 0x24, 0xc4, 0x24, 0xc5, 0x24, 0xc6, 0x24,
0xc7, 0x24, 0xc8, 0x24, 0xc9, 0x24, 0xca, 0x24,
0xcb, 0x24, 0xcc, 0x24, 0xcd, 0x24, 0xce, 0x24,
0xcf, 0x24, 0xff, 0xff, 0x46, 0x07, 0x00, 0x2c,
0x01, 0x2c, 0x02, 0x2c, 0x03, 0x2c, 0x04, 0x2c,
0x05, 0x2c, 0x06, 0x2c, 0x07, 0x2c, 0x08, 0x2c,
0x09, 0x2c, 0x0a, 0x2c, 0x0b, 0x2c, 0x0c, 0x2c,
0x0d, 0x2c, 0x0e, 0x2c, 0x0f, 0x2c, 0x10, 0x2c,
0x11, 0x2c, 0x12, 0x2c, 0x13, 0x2c, 0x14, 0x2c,
0x15, 0x2c, 0x16, 0x2c, 0x17, 0x2c, 0x18, 0x2c,
0x19, 0x2c, 0x1a, 0x2c, 0x1b, 0x2c, 0x1c, 0x2c,
0x1d, 0x2c, 0x1e, 0x2c, 0x1f, 0x2c, 0x20, 0x2c,
0x21, 0x2c, 0x22, 0x2c, 0x23, 0x2c, 0x24, 0x2c,
0x25, 0x2c, 0x26, 0x2c, 0x27, 0x2c, 0x28, 0x2c,
0x29, 0x2c, 0x2a, 0x2c, 0x2b, 0x2c, 0x2c, 0x2c,
0x2d, 0x2c, 0x2e, 0x2c, 0x5f, 0x2c, 0x60, 0x2c,
0x60, 0x2c, 0x62, 0x2c, 0x63, 0x2c, 0x64, 0x2c,
0x65, 0x2c, 0x66, 0x2c, 0x67, 0x2c, 0x67, 0x2c,
0x69, 0x2c, 0x69, 0x2c, 0x6b, 0x2c, 0x6b, 0x2c,
0x6d, 0x2c, 0x6e, 0x2c, 0x6f, 0x2c, 0x70, 0x2c,
0x71, 0x2c, 0x72, 0x2c, 0x73, 0x2c, 0x74, 0x2c,
0x75, 0x2c, 0x75, 0x2c, 0x77, 0x2c, 0x78, 0x2c,
0x79, 0x2c, 0x7a, 0x2c, 0x7b, 0x2c, 0x7c, 0x2c,
0x7d, 0x2c, 0x7e, 0x2c, 0x7f, 0x2c, 0x80, 0x2c,
0x80, 0x2c, 0x82, 0x2c, 0x82, 0x2c, 0x84, 0x2c,
0x84, 0x2c, 0x86, 0x2c, 0x86, 0x2c, 0x88, 0x2c,
0x88, 0x2c, 0x8a, 0x2c, 0x8a, 0x2c, 0x8c, 0x2c,
0x8c, 0x2c, 0x8e, 0x2c, 0x8e, 0x2c, 0x90, 0x2c,
0x90, 0x2c, 0x92, 0x2c, 0x92, 0x2c, 0x94, 0x2c,
0x94, 0x2c, 0x96, 0x2c, 0x96, 0x2c, 0x98, 0x2c,
0x98, 0x2c, 0x9a, 0x2c, 0x9a, 0x2c, 0x9c, 0x2c,
0x9c, 0x2c, 0x9e, 0x2c, 0x9e, 0x2c, 0xa0, 0x2c,
0xa0, 0x2c, 0xa2, 0x2c, 0xa2, 0x2c, 0xa4, 0x2c,
0xa4, 0x2c, 0xa6, 0x2c, 0xa6, 0x2c, 0xa8, 0x2c,
0xa8, 0x2c, 0xaa, 0x2c, 0xaa, 0x2c, 0xac, 0x2c,
0xac, 0x2c, 0xae, 0x2c, 0xae, 0x2c, 0xb0, 0x2c,
0xb0, 0x2c, 0xb2, 0x2c, 0xb2, 0x2c, 0xb4, 0x2c,
0xb4, 0x2c, 0xb6, 0x2c, 0xb6, 0x2c, 0xb8, 0x2c,
0xb8, 0x2c, 0xba, 0x2c, 0xba, 0x2c, 0xbc, 0x2c,
0xbc, 0x2c, 0xbe, 0x2c, 0xbe, 0x2c, 0xc0, 0x2c,
0xc0, 0x2c, 0xc2, 0x2c, 0xc2, 0x2c, 0xc4, 0x2c,
0xc4, 0x2c, 0xc6, 0x2c, 0xc6, 0x2c, 0xc8, 0x2c,
0xc8, 0x2c, 0xca, 0x2c, 0xca, 0x2c, 0xcc, 0x2c,
0xcc, 0x2c, 0xce, 0x2c, 0xce, 0x2c, 0xd0, 0x2c,
0xd0, 0x2c, 0xd2, 0x2c, 0xd2, 0x2c, 0xd4, 0x2c,
0xd4, 0x2c, 0xd6, 0x2c, 0xd6, 0x2c, 0xd8, 0x2c,
0xd8, 0x2c, 0xda, 0x2c, 0xda, 0x2c, 0xdc, 0x2c,
0xdc, 0x2c, 0xde, 0x2c, 0xde, 0x2c, 0xe0, 0x2c,
0xe0, 0x2c, 0xe2, 0x2c, 0xe2, 0x2c, 0xe4, 0x2c,
0xe5, 0x2c, 0xe6, 0x2c, 0xe7, 0x2c, 0xe8, 0x2c,
0xe9, 0x2c, 0xea, 0x2c, 0xeb, 0x2c, 0xec, 0x2c,
0xed, 0x2c, 0xee, 0x2c, 0xef, 0x2c, 0xf0, 0x2c,
0xf1, 0x2c, 0xf2, 0x2c, 0xf3, 0x2c, 0xf4, 0x2c,
0xf5, 0x2c, 0xf6, 0x2c, 0xf7, 0x2c, 0xf8, 0x2c,
0xf9, 0x2c, 0xfa, 0x2c, 0xfb, 0x2c, 0xfc, 0x2c,
0xfd, 0x2c, 0xfe, 0x2c, 0xff, 0x2c, 0xa0, 0x10,
0xa1, 0x10, 0xa2, 0x10, 0xa3, 0x10, 0xa4, 0x10,
0xa5, 0x10, 0xa6, 0x10, 0xa7, 0x10, 0xa8, 0x10,
0xa9, 0x10, 0xaa, 0x10, 0xab, 0x10, 0xac, 0x10,
0xad, 0x10, 0xae, 0x10, 0xaf, 0x10, 0xb0, 0x10,
0xb1, 0x10, 0xb2, 0x10, 0xb3, 0x10, 0xb4, 0x10,
0xb5, 0x10, 0xb6, 0x10, 0xb7, 0x10, 0xb8, 0x10,
0xb9, 0x10, 0xba, 0x10, 0xbb, 0x10, 0xbc, 0x10,
0xbd, 0x10, 0xbe, 0x10, 0xbf, 0x10, 0xc0, 0x10,
0xc1, 0x10, 0xc2, 0x10, 0xc3, 0x10, 0xc4, 0x10,
0xc5, 0x10, 0xff, 0xff, 0x1b, 0xd2, 0x21, 0xff,
0x22, 0xff, 0x23, 0xff, 0x24, 0xff, 0x25, 0xff,
0x26, 0xff, 0x27, 0xff, 0x28, 0xff, 0x29, 0xff,
0x2a, 0xff, 0x2b, 0xff, 0x2c, 0xff, 0x2d, 0xff,
0x2e, 0xff, 0x2f, 0xff, 0x30, 0xff, 0x31, 0xff,
0x32, 0xff, 0x33, 0xff, 0x34, 0xff, 0x35, 0xff,
0x36, 0xff, 0x37, 0xff, 0x38, 0xff, 0x39, 0xff,
0x3a, 0xff, 0x5b, 0xff, 0x5c, 0xff, 0x5d, 0xff,
0x5e, 0xff, 0x5f, 0xff, 0x60, 0xff, 0x61, 0xff,
0x62, 0xff, 0x63, 0xff, 0x64, 0xff, 0x65, 0xff,
0x66, 0xff, 0x67, 0xff, 0x68, 0xff, 0x69, 0xff,
0x6a, 0xff, 0x6b, 0xff, 0x6c, 0xff, 0x6d, 0xff,
0x6e, 0xff, 0x6f, 0xff, 0x70, 0xff, 0x71, 0xff,
0x72, 0xff, 0x73, 0xff, 0x74, 0xff, 0x75, 0xff,
0x76, 0xff, 0x77, 0xff, 0x78, 0xff, 0x79, 0xff,
0x7a, 0xff, 0x7b, 0xff, 0x7c, 0xff, 0x7d, 0xff,
0x7e, 0xff, 0x7f, 0xff, 0x80, 0xff, 0x81, 0xff,
0x82, 0xff, 0x83, 0xff, 0x84, 0xff, 0x85, 0xff,
0x86, 0xff, 0x87, 0xff, 0x88, 0xff, 0x89, 0xff,
0x8a, 0xff, 0x8b, 0xff, 0x8c, 0xff, 0x8d, 0xff,
0x8e, 0xff, 0x8f, 0xff, 0x90, 0xff, 0x91, 0xff,
0x92, 0xff, 0x93, 0xff, 0x94, 0xff, 0x95, 0xff,
0x96, 0xff, 0x97, 0xff, 0x98, 0xff, 0x99, 0xff,
0x9a, 0xff, 0x9b, 0xff, 0x9c, 0xff, 0x9d, 0xff,
0x9e, 0xff, 0x9f, 0xff, 0xa0, 0xff, 0xa1, 0xff,
0xa2, 0xff, 0xa3, 0xff, 0xa4, 0xff, 0xa5, 0xff,
0xa6, 0xff, 0xa7, 0xff, 0xa8, 0xff, 0xa9, 0xff,
0xaa, 0xff, 0xab, 0xff, 0xac, 0xff, 0xad, 0xff,
0xae, 0xff, 0xaf, 0xff, 0xb0, 0xff, 0xb1, 0xff,
0xb2, 0xff, 0xb3, 0xff, 0xb4, 0xff, 0xb5, 0xff,
0xb6, 0xff, 0xb7, 0xff, 0xb8, 0xff, 0xb9, 0xff,
0xba, 0xff, 0xbb, 0xff, 0xbc, 0xff, 0xbd, 0xff,
0xbe, 0xff, 0xbf, 0xff, 0xc0, 0xff, 0xc1, 0xff,
0xc2, 0xff, 0xc3, 0xff, 0xc4, 0xff, 0xc5, 0xff,
0xc6, 0xff, 0xc7, 0xff, 0xc8, 0xff, 0xc9, 0xff,
0xca, 0xff, 0xcb, 0xff, 0xcc, 0xff, 0xcd, 0xff,
0xce, 0xff, 0xcf, 0xff, 0xd0, 0xff, 0xd1, 0xff,
0xd2, 0xff, 0xd3, 0xff, 0xd4, 0xff, 0xd5, 0xff,
0xd6, 0xff, 0xd7, 0xff, 0xd8, 0xff, 0xd9, 0xff,
0xda, 0xff, 0xdb, 0xff, 0xdc, 0xff, 0xdd, 0xff,
0xde, 0xff, 0xdf, 0xff, 0xe0, 0xff, 0xe1, 0xff,
0xe2, 0xff, 0xe3, 0xff, 0xe4, 0xff, 0xe5, 0xff,
0xe6, 0xff, 0xe7, 0xff, 0xe8, 0xff, 0xe9, 0xff,
0xea, 0xff, 0xeb, 0xff, 0xec, 0xff, 0xed, 0xff,
0xee, 0xff, 0xef, 0xff, 0xf0, 0xff, 0xf1, 0xff,
0xf2, 0xff, 0xf3, 0xff, 0xf4, 0xff, 0xf5, 0xff,
0xf6, 0xff, 0xf7, 0xff, 0xf8, 0xff, 0xf9, 0xff,
0xfa, 0xff, 0xfb, 0xff, 0xfc, 0xff, 0xfd, 0xff,
0xfe, 0xff, 0xff, 0xff
};

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/*
uctc.h (30.10.10)
Upper Case Table declaration.
Free exFAT implementation.
Copyright (C) 2011-2018 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 MKFS_UCTC_H_INCLUDED
#define MKFS_UCTC_H_INCLUDED
#include <stdint.h>
extern uint8_t upcase_table[5836];
#endif /* ifndef MKFS_UCTC_H_INCLUDED */

148
mkfs/vbr.c Normal file
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/*
vbr.c (09.11.10)
Volume Boot Record creation code.
Free exFAT implementation.
Copyright (C) 2011-2018 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.
*/
#include "vbr.h"
#include "fat.h"
#include "cbm.h"
#include "uct.h"
#include "rootdir.h"
#include <string.h>
static off_t vbr_alignment(void)
{
return get_sector_size();
}
static off_t vbr_size(void)
{
return 12 * get_sector_size();
}
static void init_sb(struct exfat_super_block* sb)
{
uint32_t clusters_max;
uint32_t fat_sectors;
clusters_max = get_volume_size() / get_cluster_size();
fat_sectors = DIV_ROUND_UP((off_t) clusters_max * sizeof(cluster_t),
get_sector_size());
memset(sb, 0, sizeof(struct exfat_super_block));
sb->jump[0] = 0xeb;
sb->jump[1] = 0x76;
sb->jump[2] = 0x90;
memcpy(sb->oem_name, "EXFAT ", sizeof(sb->oem_name));
sb->sector_start = cpu_to_le64(get_first_sector());
sb->sector_count = cpu_to_le64(get_volume_size() / get_sector_size());
sb->fat_sector_start = cpu_to_le32(
fat.get_alignment() / get_sector_size());
sb->fat_sector_count = cpu_to_le32(ROUND_UP(
le32_to_cpu(sb->fat_sector_start) + fat_sectors,
1 << get_spc_bits()) -
le32_to_cpu(sb->fat_sector_start));
sb->cluster_sector_start = cpu_to_le32(
get_position(&cbm) / get_sector_size());
sb->cluster_count = cpu_to_le32(clusters_max -
((le32_to_cpu(sb->fat_sector_start) +
le32_to_cpu(sb->fat_sector_count)) >> get_spc_bits()));
sb->rootdir_cluster = cpu_to_le32(
(get_position(&rootdir) - get_position(&cbm)) / get_cluster_size()
+ EXFAT_FIRST_DATA_CLUSTER);
sb->volume_serial = cpu_to_le32(get_volume_serial());
sb->version.major = 1;
sb->version.minor = 0;
sb->volume_state = cpu_to_le16(0);
sb->sector_bits = get_sector_bits();
sb->spc_bits = get_spc_bits();
sb->fat_count = 1;
sb->drive_no = 0x80;
sb->allocated_percent = 0;
sb->boot_signature = cpu_to_le16(0xaa55);
}
static int vbr_write(struct exfat_dev* dev)
{
struct exfat_super_block sb;
uint32_t checksum;
le32_t* sector = malloc(get_sector_size());
size_t i;
if (sector == NULL)
{
exfat_error("failed to allocate sector-sized block of memory");
return 1;
}
init_sb(&sb);
if (exfat_write(dev, &sb, sizeof(struct exfat_super_block)) < 0)
{
free(sector);
exfat_error("failed to write super block sector");
return 1;
}
checksum = exfat_vbr_start_checksum(&sb, sizeof(struct exfat_super_block));
memset(sector, 0, get_sector_size());
sector[get_sector_size() / sizeof(sector[0]) - 1] =
cpu_to_le32(0xaa550000);
for (i = 0; i < 8; i++)
{
if (exfat_write(dev, sector, get_sector_size()) < 0)
{
free(sector);
exfat_error("failed to write a sector with boot signature");
return 1;
}
checksum = exfat_vbr_add_checksum(sector, get_sector_size(), checksum);
}
memset(sector, 0, get_sector_size());
for (i = 0; i < 2; i++)
{
if (exfat_write(dev, sector, get_sector_size()) < 0)
{
free(sector);
exfat_error("failed to write an empty sector");
return 1;
}
checksum = exfat_vbr_add_checksum(sector, get_sector_size(), checksum);
}
for (i = 0; i < get_sector_size() / sizeof(sector[0]); i++)
sector[i] = cpu_to_le32(checksum);
if (exfat_write(dev, sector, get_sector_size()) < 0)
{
free(sector);
exfat_error("failed to write checksum sector");
return 1;
}
free(sector);
return 0;
}
const struct fs_object vbr =
{
.get_alignment = vbr_alignment,
.get_size = vbr_size,
.write = vbr_write,
};

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/*
vbr.h (09.11.10)
Volume Boot Record creation code.
Free exFAT implementation.
Copyright (C) 2011-2018 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 MKFS_VBR_H_INCLUDED
#define MKFS_VBR_H_INCLUDED
#include "mkexfat.h"
extern const struct fs_object vbr;
#endif /* ifndef MKFS_VBR_H_INCLUDED */