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33 Commits
v5.2 ... v5.0.3

Author SHA1 Message Date
Lasse Collin
e32cb264ea Bump version and soname for 5.0.3. 2011-05-21 16:59:22 +03:00
Lasse Collin
65cff45f8f Update NEWS for 5.0.3. 2011-05-21 16:56:53 +03:00
Lasse Collin
316c67ffda Add French translation. 
It is known that the BCJ filter --help text is only
partially translated.
 2011-05-21 16:29:11 +03:00
Lasse Collin
1931175eea xz: Translate also the string used to print the program name. 
French needs a space before a colon, e.g. "xz : foo error".
 2011-05-21 15:12:43 +03:00
Lasse Collin
841dc1f891 Update THANKS. 2011-05-17 12:28:18 +03:00
Lasse Collin
0f7e2d3624 Update INSTALL with a note about linker problem on OpenSolaris x86. 2011-05-17 12:28:14 +03:00
Lasse Collin
793d857e01 Build: Fix initialization of enable_check_* variables in configure.ac. 
This doesn't matter much in practice since it is unlikely
that anyone would have such environment variable names.

Thanks to Wim Lewis.
 2011-05-17 12:28:07 +03:00
Lasse Collin
afcff45cee Add underscores to attributes (__attribute((__foo__))). 2011-05-17 12:27:22 +03:00
Lasse Collin
22159c6ba2 Update THANKS. 2011-04-18 19:36:21 +03:00
Martin Väth
5e34990595 xzgrep: fix typo in $0 parsing 
Reported-by: Diego Elio Pettenò <flameeyes@gentoo.org>
Signed-off-by: Martin Väth <vaeth@mathematik.uni-wuerzburg.de>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
 2011-04-18 19:36:14 +03:00
Lasse Collin
1125611b9b Remove doubled words from documentation and comments. 
Spot candidates by running these commands:
  git ls-files |xargs perl -0777 -n \
    -e 'while (/\b(then?|[iao]n|i[fst]|but|f?or|at|and|[dt]o)\s+\1\b/gims)' \
    -e '{$n=($` =~ tr/\n/\n/ + 1); ($v=$&)=~s/\n/\\n/g; print "$ARGV:$n:$v\n"}'

Thanks to Jim Meyering for the original patch.
 2011-04-12 12:03:31 +03:00
Lasse Collin
3f8fa53837 liblzma: Document lzma_easy_(enc|dec)oder_memusage() better too. 2011-04-11 21:04:24 +03:00
Lasse Collin
320d734c20 liblzma: Document lzma_raw_(enc|dec)oder_memusage() better. 
It didn't mention the return value that is used if
an error occurs.
 2011-04-11 20:59:20 +03:00
Lasse Collin
2ee4edeffc liblzma: Don't create an empty Block in lzma_stream_buffer_encode(). 
Empty Block was created if the input buffer was empty.
Empty Block wastes a few bytes of space, but more importantly
it triggers a bug in XZ Utils 5.0.1 and older when trying
to decompress such a file. 5.0.1 and older consider such
files to be corrupt. I thought that no encoder creates empty
Blocks when releasing 5.0.2 but I was wrong.
 2011-04-11 14:00:55 +03:00
Lasse Collin
73f56fb87d liblzma: Fix API docs to mention LZMA_UNSUPPORTED_CHECK. 
This return value was missing from the API comments of
four functions.
 2011-04-11 14:00:50 +03:00
Lasse Collin
4ce1cf97a8 liblzma: Validate encoder arguments better. 
The biggest problem was that the integrity check type
wasn't validated, and e.g. lzma_easy_buffer_encode()
would create a corrupt .xz Stream if given an unsupported
Check ID. Luckily applications don't usually try to use
an unsupport Check ID, so this bug is unlikely to cause
many real-world problems.
 2011-04-11 14:00:46 +03:00
Lasse Collin
972f05d7a4 Update THANKS. 2011-04-09 18:30:59 +03:00
Lasse Collin
28154eeaf6 liblzma: Add missing #ifdefs to filter_common.c. 
Passing --disable-decoders to configure broke a few
encoders due to missing #ifdefs in filter_common.c.

Thanks to Jason Gorski for the patch.
 2011-04-09 18:30:53 +03:00
Lasse Collin
aa95516d3d liblzma: Fix a memory leak in stream_encoder.c. 
It leaks old filter options structures (hundred bytes or so)
every time the lzma_stream is reinitialized. With the xz tool,
this happens when compressing multiple files.
 2011-04-05 15:27:48 +03:00
Lasse Collin
58f52c72f4 Bumped version and liblzma soname to 5.0.2. 2011-04-01 08:47:46 +03:00
Lasse Collin
162779682e Updated NEWS for 5.0.2. 2011-04-01 08:47:20 +03:00
Lasse Collin
45553f9b4b Update INSTALL with another note about IRIX. 2011-03-31 15:07:08 +03:00
Lasse Collin
af9d48d551 Tests: Add a new file to test empty LZMA2 streams. 2011-03-31 13:08:10 +03:00
Lasse Collin
d099ef9f51 liblzma: Fix decoding of LZMA2 streams having no uncompressed data. 
The decoder considered empty LZMA2 streams to be corrupt.
This shouldn't matter much with .xz files, because no encoder
creates empty LZMA2 streams in .xz. This bug is more likely
to cause problems in applications that use raw LZMA2 streams.
 2011-03-31 13:08:05 +03:00
Lasse Collin
df87249b26 Scripts: Better fix for xzgrep. 
Now it uses "grep -q".

Thanks to Gregory Margo.
 2011-03-24 01:43:23 +02:00
Lasse Collin
68c453e1c7 Updated THANKS. 2011-03-24 01:24:16 +02:00
Lasse Collin
b441d39855 Scripts: Fix xzgrep -l. 
It didn't work at all. It tried to use the -q option
for grep, but it appended it after "--". This works
around it by redirecting to /dev/null. The downside
is that this can be slower with big files compared
to proper use of "grep -q".

Thanks to Gregory Margo.
 2011-03-24 01:24:12 +02:00
Lasse Collin
82d5164839 xz: Clean up suffix.c. 
struct suffix_pair isn't needed in compresed_name()
so get rid of it there.
 2011-02-04 22:49:31 +02:00
Lasse Collin
6decc8b418 xz: Check if the file already has custom suffix when compressing. 
Now "xz -S .test foo.test" refuses to compress the
file because it already has the suffix .test. The man
page had it documented this way already.
 2011-02-04 11:29:47 +02:00
Lasse Collin
ecda90061d Updated THANKS. 2011-02-02 23:01:51 +02:00
Lasse Collin
0fda1ae5b1 Translations: Add Polish translation. 
Thanks to Jakub Bogusz.
 2011-02-02 23:00:33 +02:00
Lasse Collin
00be32978f Updated THANKS. 2011-02-02 22:24:00 +02:00
Lasse Collin
7232fcf96b Bump package version and liblzma soname to 5.0.1. 2011-01-28 20:26:38 +02:00
210 changed files with 2905 additions and 13796 deletions
Expand all files Collapse all files

2
.gitignore vendored
View File

@@ -1,7 +1,6 @@
*~
*.bak
*.bak[0-9]
.gdb_history
.deps
.libs
@@ -30,7 +29,6 @@ build-aux/depcomp
build-aux/install-sh
build-aux/ltmain.sh
build-aux/missing
build-aux/test-driver
/src/liblzma/liblzma.pc
/src/lzmainfo/lzmainfo

6
AUTHORS
View File

@@ -16,11 +16,11 @@ Authors of XZ Utils
Some scripts have been adapted from gzip. The original versions
were written by Jean-loup Gailly, Charles Levert, and Paul Eggert.
Andrew Dudman helped adapting the scripts and their man pages for
Andrew Dudman helped adapting the script and their man pages for
XZ Utils.
The GNU Autotools-based build system contains files from many authors,
which I'm not trying to list here.
The GNU Autotools based build system contains files from many authors,
which I'm not trying list here.
Several people have contributed fixes or reported bugs. Most of them
are mentioned in the file THANKS.

2
COPYING
View File

@@ -47,7 +47,7 @@ XZ Utils Licensing
naturally it is not legally required. Here is an example of a good
notice to put into "about box" or into documentation:
This software includes code from XZ Utils <https://tukaani.org/xz/>.
This software includes code from XZ Utils <http://tukaani.org/xz/>.
The following license texts are included in the following files:
- COPYING.LGPLv2.1: GNU Lesser General Public License version 2.1

14
COPYING.GPLv2
View File

@@ -1,12 +1,12 @@
GNU GENERAL PUBLIC LICENSE
Version 2, June 1991
GNU GENERAL PUBLIC LICENSE
Version 2, June 1991
Copyright (C) 1989, 1991 Free Software Foundation, Inc.,
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
Everyone is permitted to copy and distribute verbatim copies
of this license document, but changing it is not allowed.
Preamble
Preamble
The licenses for most software are designed to take away your
freedom to share and change it. By contrast, the GNU General Public
@@ -56,7 +56,7 @@ patent must be licensed for everyone's free use or not licensed at all.
The precise terms and conditions for copying, distribution and
modification follow.
GNU GENERAL PUBLIC LICENSE
GNU GENERAL PUBLIC LICENSE
TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION
0. This License applies to any program or other work which contains
@@ -255,7 +255,7 @@ make exceptions for this. Our decision will be guided by the two goals
of preserving the free status of all derivatives of our free software and
of promoting the sharing and reuse of software generally.
NO WARRANTY
NO WARRANTY
11. BECAUSE THE PROGRAM IS LICENSED FREE OF CHARGE, THERE IS NO WARRANTY
FOR THE PROGRAM, TO THE EXTENT PERMITTED BY APPLICABLE LAW. EXCEPT WHEN
@@ -277,9 +277,9 @@ YOU OR THIRD PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER
PROGRAMS), EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE
POSSIBILITY OF SUCH DAMAGES.
END OF TERMS AND CONDITIONS
END OF TERMS AND CONDITIONS
How to Apply These Terms to Your New Programs
How to Apply These Terms to Your New Programs
If you develop a new program, and you want it to be of the greatest
possible use to the public, the best way to achieve this is to make it

16
COPYING.LGPLv2.1
View File

@@ -1,5 +1,5 @@
GNU LESSER GENERAL PUBLIC LICENSE
Version 2.1, February 1999
GNU LESSER GENERAL PUBLIC LICENSE
Version 2.1, February 1999
Copyright (C) 1991, 1999 Free Software Foundation, Inc.
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
@@ -10,7 +10,7 @@
as the successor of the GNU Library Public License, version 2, hence
the version number 2.1.]
Preamble
Preamble
The licenses for most software are designed to take away your
freedom to share and change it. By contrast, the GNU General Public
@@ -112,7 +112,7 @@ modification follow. Pay close attention to the difference between a
former contains code derived from the library, whereas the latter must
be combined with the library in order to run.
GNU LESSER GENERAL PUBLIC LICENSE
GNU LESSER GENERAL PUBLIC LICENSE
TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION
0. This License Agreement applies to any software library or other
@@ -146,7 +146,7 @@ such a program is covered only if its contents constitute a work based
on the Library (independent of the use of the Library in a tool for
writing it). Whether that is true depends on what the Library does
and what the program that uses the Library does.
1. You may copy and distribute verbatim copies of the Library's
complete source code as you receive it, in any medium, provided that
you conspicuously and appropriately publish on each copy an
@@ -432,7 +432,7 @@ decision will be guided by the two goals of preserving the free status
of all derivatives of our free software and of promoting the sharing
and reuse of software generally.
NO WARRANTY
NO WARRANTY
15. BECAUSE THE LIBRARY IS LICENSED FREE OF CHARGE, THERE IS NO
WARRANTY FOR THE LIBRARY, TO THE EXTENT PERMITTED BY APPLICABLE LAW.
@@ -455,7 +455,7 @@ FAILURE OF THE LIBRARY TO OPERATE WITH ANY OTHER SOFTWARE), EVEN IF
SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH
DAMAGES.
END OF TERMS AND CONDITIONS
END OF TERMS AND CONDITIONS
How to Apply These Terms to Your New Libraries
@@ -500,3 +500,5 @@ necessary. Here is a sample; alter the names:
Ty Coon, President of Vice
That's all there is to it!

2
ChangeLog
View File

@@ -1,6 +1,6 @@
See the commit log in the git repository:
git clone https://git.tukaani.org/xz.git
git clone http://git.tukaani.org/xz.git
Note that "make dist" doesn't put this tiny file into the package.
Instead, the git commit log is used as ChangeLog. See dist-hook in

249
INSTALL
View File

@@ -6,14 +6,13 @@ XZ Utils Installation
1. Supported platforms
1.1. Compilers
1.2. Platform-specific notes
1.2.1. AIX
1.2.2. IRIX
1.2.3. MINIX 3
1.2.4. OpenVMS
1.2.5. Solaris, OpenSolaris, and derivatives
1.2.6. Tru64
1.2.7. Windows
1.2.8. DOS
1.2.1. IRIX
1.2.2. MINIX 3
1.2.3. OpenVMS
1.2.4. Solaris, OpenSolaris, and derivatives
1.2.5. Tru64
1.2.6. Windows
1.2.7. DOS
1.3. Adding support for new platforms
2. configure options
2.1. Static vs. dynamic linking of liblzma
@@ -26,8 +25,6 @@ XZ Utils Installation
4.2. "No POSIX conforming shell (sh) was found."
4.3. configure works but build fails at crc32_x86.S
4.4. Lots of warnings about symbol visibility
4.5. "make check" fails
4.6. liblzma.so (or similar) not found when running xz
0. Preface
@@ -66,14 +63,7 @@ XZ Utils Installation
1.2. Platform-specific notes
1.2.1. AIX
If you use IBM XL C compiler, pass CC=xlc_r to configure. If
you use CC=xlc instead, you must disable threading support
with --disable-threads (usually not recommended).
1.2.2. IRIX
1.2.1. IRIX
MIPSpro 7.4.4m has been reported to produce broken code if using
the -O2 optimization flag ("make check" fails). Using -O1 should
@@ -84,18 +74,16 @@ XZ Utils Installation
putting "-64" to CFLAGS to build a 64-bit version might help too.
1.2.3. MINIX 3
1.2.2. MINIX 3
The default install of MINIX 3 includes Amsterdam Compiler Kit (ACK),
which doesn't support C99. Install GCC to compile XZ Utils.
MINIX 3.1.8 and older have bugs in /usr/include/stdint.h, which has
to be patched before XZ Utils can be compiled correctly. See
MINIX 3.1.8 (and possibly some other versions too) has bugs in
/usr/include/stdint.h, which has to be patched before XZ Utils
can be compiled correctly. See
<http://gforge.cs.vu.nl/gf/project/minix/tracker/?action=TrackerItemEdit&tracker_item_id=537>.
MINIX 3.2.0 and later use a different libc and aren't affected by
the above bug.
XZ Utils doesn't have code to detect the amount of physical RAM and
number of CPU cores on MINIX 3.
@@ -103,7 +91,7 @@ XZ Utils Installation
may want to pass gl_cv_cc_visibility=no to configure).
1.2.4. OpenVMS
1.2.3. OpenVMS
XZ Utils can be built for OpenVMS, but the build system files
are not included in the XZ Utils source package. The required
@@ -113,7 +101,7 @@ XZ Utils Installation
http://nchrem.tnw.tudelft.nl/openvms/software2.html#xzutils
1.2.5. Solaris, OpenSolaris, and derivatives
1.2.4. Solaris, OpenSolaris, and derivatives
The following linker error has been reported on some x86 systems:
@@ -122,51 +110,35 @@ XZ Utils Installation
This can be worked around by passing gl_cv_cc_visibility=no
as an argument to the configure script.
test_scripts.sh in "make check" may fail if good enough tools are
missing from PATH (/usr/xpg4/bin or /usr/xpg6/bin). See sections
4.5 and 3.2 for more information.
1.2.6. Tru64
1.2.5. Tru64
If you try to use the native C compiler on Tru64 (passing CC=cc to
configure), you may need the workaround mention in section 4.1 in
this file (pass also ac_cv_prog_cc_c99= to configure).
1.2.7. Windows
1.2.6. Windows
Building XZ Utils on Windows is supported under the following
environments:
Building XZ Utils on Windows is supported under MinGW + MSYS,
MinGW-w64 + MSYS, and Cygwin. There is windows/build.bash to
ease packaging XZ Utils with MinGW(-w64) + MSYS into a
redistributable .zip or .7z file. See windows/INSTALL-Windows.txt
for more information.
- MinGW-w64 + MSYS (32-bit and 64-bit x86): This is used
for building the official binary packages for Windows.
There is windows/build.bash to ease packaging XZ Utils with
MinGW(-w64) + MSYS into a redistributable .zip or .7z file.
See windows/INSTALL-MinGW.txt for more information.
- MinGW + MSYS (32-bit x86): I haven't recently tested this.
- Cygwin 1.7.35 and later: NOTE that using XZ Utils >= 5.2.0
under Cygwin older than 1.7.35 can lead to DATA LOSS! If
you must use an old Cygwin version, stick to XZ Utils 5.0.x
which is safe under older Cygwin versions. You can check
the Cygwin version with the command "cygcheck -V".
- Microsoft Visual Studio 2013 update 2 or later (MSVC for short):
See windows/INSTALL-MSVC.txt for more information.
It may be possible to build liblzma with other toolchains too, but
that will probably require writing a separate makefile. Building
It might be possible to build liblzma with a non-GNU toolchain too,
but that will probably require writing a separate makefile. Building
the command line tools with non-GNU toolchains will be harder than
building only liblzma.
Even if liblzma is built with MinGW(-w64), the resulting DLL can
be used by other compilers and linkers, including MSVC. See
Even if liblzma is built with MinGW, the resulting DLL or static
library can be used by other compilers and linkers, including MSVC.
Thus, it shouldn't be a problem to use MinGW to build liblzma even
if you cannot use MinGW to build the rest of your project. See
windows/README-Windows.txt for details.
1.2.8. DOS
1.2.7. DOS
There is an experimental Makefile in the "dos" directory to build
XZ Utils on DOS using DJGPP. Support for long file names (LFN) is
@@ -246,42 +218,6 @@ XZ Utils Installation
the liblzma ABI, so this option should be used only when
it is known to not cause problems.
--enable-external-sha256
Try to use SHA-256 code from the operating system libc
or similar base system libraries. This doesn't try to
use OpenSSL or libgcrypt or such libraries.
The reasons to use this option:
- It makes liblzma slightly smaller.
- It might improve SHA-256 speed if the implementation
in the operating is very good (but see below).
External SHA-256 is disabled by default for two reasons:
- On some operating systems the symbol names of the
SHA-256 functions conflict with OpenSSL's libcrypto.
This causes weird problems such as decompression
errors if an application is linked against both
liblzma and libcrypto. This problem affects at least
FreeBSD 10 and older and MINIX 3.3.0 and older, but
other OSes that provide a function "SHA256_Init" might
also be affected. FreeBSD 11 has the problem fixed.
NetBSD had the problem but it was fixed it in 2009
already. OpenBSD uses "SHA256Init" and thus never had
a conflict with libcrypto.
- The SHA-256 code in liblzma is faster than the SHA-256
code provided by some operating systems. If you are
curious, build two copies of xz (internal and external
SHA-256) and compare the decompression (xz --test)
times:
dd if=/dev/zero bs=1024k count=1024 \
| xz -v -0 -Csha256 > foo.xz
time xz --test foo.xz
--disable-xz
--disable-xzdec
--disable-lzmadec
@@ -305,12 +241,6 @@ XZ Utils Installation
Don't install the scripts xzdiff, xzgrep, xzmore, xzless,
and their symlinks.
--disable-doc
Don't install the documentation files to $docdir
(often /usr/doc/xz or /usr/local/doc/xz). Man pages
will still be installed. The $docdir can be changed
with --docdir=DIR.
--disable-assembler
liblzma includes some assembler optimizations. Currently
there is only assembler code for CRC32 and CRC64 for
@@ -367,70 +297,16 @@ XZ Utils Installation
the amount of RAM on the operating system you use. See
src/common/tuklib_physmem.c for details.
--enable-threads=METHOD
Threading support is enabled by default so normally there
is no need to specify this option.
--disable-threads
Disable threading support. This makes some things
thread-unsafe, meaning that if multithreaded application
calls liblzma functions from more than one thread,
something bad may happen.
Supported values for METHOD:
yes Autodetect the threading method. If none
is found, configure will give an error.
posix Use POSIX pthreads. This is the default
except on Windows outside Cygwin.
win95 Use Windows 95 compatible threads. This
is compatible with Windows XP and later
too. This is the default for 32-bit x86
Windows builds. The `win95' threading is
incompatible with --enable-small.
vista Use Windows Vista compatible threads. The
resulting binaries won't run on Windows XP
or older. This is the default for Windows
excluding 32-bit x86 builds (that is, on
x86-64 the default is `vista').
no Disable threading support. This is the
same as using --disable-threads.
NOTE: If combined with --enable-small, the
resulting liblzma won't be thread safe,
that is, if a multi-threaded application
calls any liblzma functions from more than
one thread, something bad may happen.
--enable-sandbox=METHOD
This feature is EXPERIMENTAL in the XZ Utils 5.2.x and
disabled by default. If you test this, look especially
if message translations and locale-specific decimal and
thousand separators (e.g. xz --list foo.xz) work the
same way as they do without sandboxing.
There is limited sandboxing support in the xz tool. If
built with sandbox support, it's used automatically when
(de)compressing exactly one file to standard output and
the options --files or --files0 weren't used. This is a
common use case, for example, (de)compressing .tar.xz
files via GNU tar. The sandbox is also used for
single-file `xz --test' or `xz --list'.
Supported METHODs:
auto Look for a supported sandboxing method
and use it if found. If no method is
found, then sandboxing isn't used.
no Disable sandboxing support.
capsicum
Use Capsicum (FreeBSD >= 10) for
sandboxing. If no Capsicum support
is found, configure will give an error.
--enable-symbol-versions
Use symbol versioning for liblzma. This is enabled by
default on GNU/Linux, other GNU-based systems, and
FreeBSD.
Use this option if threading support causes you trouble,
or if you know that you will use liblzma only from
single-threaded applications and want to avoid dependency
on libpthread.
--enable-debug
This enables the assert() macro and possibly some other
@@ -501,16 +377,11 @@ XZ Utils Installation
gl_cv_posix_shell=/path/to/posix-sh as an argument to the configure
script.
xzdiff (xzcmp/lzdiff/lzcmp) may use mktemp if it is available. As
a fallback xzdiff will use mkdir to securely create a temporary
directory. Having mktemp available is still recommended since the
mkdir fallback method isn't as robust as mktemp is. The original
mktemp can be found from <http://www.mktemp.org/>. On GNU, most will
use the mktemp program from GNU coreutils instead of the original
implementation. Both mktemp versions are fine.
In addition to using xz to decompress .xz files, xzgrep and xzdiff
use gzip, bzip2, and lzop to support .gz, bz2, and .lzo files.
Some of the scripts require also mktemp. The original mktemp can be
found from <http://www.mktemp.org/>. On GNU, most will use the mktemp
program from GNU coreutils instead of the original implementation.
Both mktemp versions are fine for XZ Utils (and practically for
everything else too).
3.2. PATH
@@ -551,8 +422,7 @@ XZ Utils Installation
to POSIX. The configure script tries to find such a shell. If
it fails, you can force the shell to be used by passing
gl_cv_posix_shell=/path/to/posix-sh as an argument to the configure
script. Alternatively you can omit the installation of scripts and
this error by passing --disable-scripts to configure.
script.
4.3. configure works but build fails at crc32_x86.S
@@ -583,36 +453,3 @@ XZ Utils Installation
resulting binaries, but fewer warnings looks nicer and may allow
using --enable-werror.
4.5. "make check" fails
If the other tests pass but test_scripts.sh fails, then the problem
is in the scripts in src/scripts. Comparing the contents of
tests/xzgrep_test_output to tests/xzgrep_expected_output might
give a good idea about problems in xzgrep. One possibility is that
some tools are missing from the current PATH or the tools lack
support for some POSIX features. This can happen at least on
Solaris where the tools in /bin may be ancient but good enough
tools are available in /usr/xpg4/bin or /usr/xpg6/bin. One fix
for this problem is described in section 3.2 of this file.
If tests other than test_scripts.sh fail, a likely reason is that
libtool links the test programs against an installed version of
liblzma instead of the version that was just built. This is
obviously a bug which seems to happen on some platforms.
A workaround is to uninstall the old liblzma versions first.
If the problem isn't any of those described above, then it's likely
a bug in XZ Utils or in the compiler. See the platform-specific
notes in this file for possible known problems. Please report
a bug if you cannot solve the problem. See README for contact
information.
4.6. liblzma.so (or similar) not found when running xz
If you installed the package with "make install" and get an error
about liblzma.so (or a similarly named file) being missing, try
running "ldconfig" to update the run-time linker cache (if your
operating system has such a command).

23
Makefile.am
View File

@@ -5,9 +5,6 @@
## You can do whatever you want with this file.
##
# Use -n to prevent gzip from adding a timestamp to the .gz headers.
GZIP_ENV = -9n
DIST_SUBDIRS = lib src po tests debug
SUBDIRS =
@@ -17,7 +14,6 @@ endif
SUBDIRS += src po tests
if COND_DOC
dist_doc_DATA = \
AUTHORS \
COPYING \
@@ -33,24 +29,13 @@ dist_doc_DATA = \
examplesdir = $(docdir)/examples
dist_examples_DATA = \
doc/examples/00_README.txt \
doc/examples/01_compress_easy.c \
doc/examples/02_decompress.c \
doc/examples/03_compress_custom.c \
doc/examples/04_compress_easy_mt.c \
doc/examples/Makefile
examplesolddir = $(docdir)/examples_old
dist_examplesold_DATA = \
doc/examples_old/xz_pipe_comp.c \
doc/examples_old/xz_pipe_decomp.c
endif
doc/examples/xz_pipe_comp.c \
doc/examples/xz_pipe_decomp.c
EXTRA_DIST = \
extra \
dos \
windows \
macosx \
autogen.sh \
Doxyfile.in \
COPYING.GPLv2 \
@@ -77,8 +62,7 @@ manfiles = \
# Convert the man pages to PDF and plain text (ASCII only) formats.
dist-hook:
if test -d "$(srcdir)/.git" && type git > /dev/null 2>&1; then \
( cd "$(srcdir)" && git log --date=iso --stat \
b667a3ef6338a2c1db7b7706b1f6c99ea392221c^..HEAD ) \
( cd "$(srcdir)" && git log --date=iso --stat ) \
> "$(distdir)/ChangeLog"; \
fi
if type groff > /dev/null 2>&1 && type ps2pdf > /dev/null 2>&1; then \
@@ -100,7 +84,6 @@ dist-hook:
# This works with GNU tar and gives cleaner package than normal 'make dist'.
mydist:
sh "$(srcdir)/src/liblzma/validate_map.sh"
VERSION=$(VERSION); \
if test -d "$(srcdir)/.git" && type git > /dev/null 2>&1; then \
SNAPSHOT=`cd "$(srcdir)" && git describe --abbrev=4 | cut -b2-`; \

445
NEWS
View File

@@ -2,451 +2,6 @@
XZ Utils Release Notes
======================
5.2.4 (2018-04-29)
* liblzma:
- Allow 0 as memory usage limit instead of returning
LZMA_PROG_ERROR. Now 0 is treated as if 1 byte was specified,
which effectively is the same as 0.
- Use "noexcept" keyword instead of "throw()" in the public
headers when a C++11 (or newer standard) compiler is used.
- Added a portability fix for recent Intel C Compilers.
- Microsoft Visual Studio build files have been moved under
windows/vs2013 and windows/vs2017.
* xz:
- Fix "xz --list --robot missing_or_bad_file.xz" which would
try to print an unitialized string and thus produce garbage
output. Since the exit status is non-zero, most uses of such
a command won't try to interpret the garbage output.
- "xz --list foo.xz" could print "Internal error (bug)" in a
corner case where a specific memory usage limit had been set.
5.2.3 (2016-12-30)
* xz:
- Always close a file before trying to delete it to avoid
problems on some operating system and file system combinations.
- Fixed copying of file timestamps on Windows.
- Added experimental (disabled by default) sandbox support using
Capsicum (FreeBSD >= 10). See --enable-sandbox in INSTALL.
* C99/C11 conformance fixes to liblzma. The issues affected at least
some builds using link-time optimizations.
* Fixed bugs in the rarely-used function lzma_index_dup().
* Use of external SHA-256 code is now disabled by default.
It can still be enabled by passing --enable-external-sha256
to configure. The reasons to disable it by default (see INSTALL
for more details):
- Some OS-specific SHA-256 implementations conflict with
OpenSSL and cause problems in programs that link against both
liblzma and libcrypto. At least FreeBSD 10 and MINIX 3.3.0
are affected.
- The internal SHA-256 is faster than the SHA-256 code in
some operating systems.
* Changed CPU core count detection to use sched_getaffinity() on
GNU/Linux and GNU/kFreeBSD.
* Fixes to the build-system and xz to make xz buildable even when
encoders, decoders, or threading have been disabled from libilzma
using configure options. These fixes added two new #defines to
config.h: HAVE_ENCODERS and HAVE_DECODERS.
5.2.2 (2015-09-29)
* Fixed bugs in QNX-specific code.
* Omitted the use of pipe2() even if it is available to avoid
portability issues with some old Linux and glibc combinations.
* Updated German translation.
* Added project files to build static and shared liblzma (not the
whole XZ Utils) with Visual Studio 2013 update 2 or later.
* Documented that threaded decompression hasn't been implemented
yet. A 5.2.0 NEWS entry describing multi-threading support had
incorrectly said "decompression" when it should have said
"compression".
5.2.1 (2015-02-26)
* Fixed a compression-ratio regression in fast mode of LZMA1 and
LZMA2. The bug is present in 5.1.4beta and 5.2.0 releases.
* Fixed a portability problem in xz that affected at least OpenBSD.
* Fixed xzdiff to be compatible with FreeBSD's mktemp which differs
from most other mktemp implementations.
* Changed CPU core count detection to use cpuset_getaffinity() on
FreeBSD.
5.2.0 (2014-12-21)
Since 5.1.4beta:
* All fixes from 5.0.8
* liblzma: Fixed lzma_stream_encoder_mt_memusage() when a preset
was used.
* xzdiff: If mktemp isn't installed, mkdir will be used as
a fallback to create a temporary directory. Installing mktemp
is still recommended.
* Updated French, German, Italian, Polish, and Vietnamese
translations.
Summary of fixes and new features added in the 5.1.x development
releases:
* liblzma:
- Added support for multi-threaded compression. See the
lzma_mt structure, lzma_stream_encoder_mt(), and
lzma_stream_encoder_mt_memusage() in <lzma/container.h>,
lzma_get_progress() in <lzma/base.h>, and lzma_cputhreads()
in <lzma/hardware.h> for details.
- Made the uses of lzma_allocator const correct.
- Added lzma_block_uncomp_encode() to create uncompressed
.xz Blocks using LZMA2 uncompressed chunks.
- Added support for LZMA_IGNORE_CHECK.
- A few speed optimizations were made.
- Added support for symbol versioning. It is enabled by default
on GNU/Linux, other GNU-based systems, and FreeBSD.
- liblzma (not the whole XZ Utils) should now be buildable
with MSVC 2013 update 2 or later using windows/config.h.
* xz:
- Fixed a race condition in the signal handling. It was
possible that e.g. the first SIGINT didn't make xz exit
if reading or writing blocked and one had bad luck. The fix
is non-trivial, so as of writing it is unknown if it will be
backported to the v5.0 branch.
- Multi-threaded compression can be enabled with the
--threads (-T) option.
[Fixed: This originally said "decompression".]
- New command line options in xz: --single-stream,
--block-size=SIZE, --block-list=SIZES,
--flush-timeout=TIMEOUT, and --ignore-check.
- xz -lvv now shows the minimum xz version that is required to
decompress the file. Currently it is 5.0.0 for all supported
.xz files except files with empty LZMA2 streams require 5.0.2.
* xzdiff and xzgrep now support .lzo files if lzop is installed.
The .tzo suffix is also recognized as a shorthand for .tar.lzo.
5.1.4beta (2014-09-14)
* All fixes from 5.0.6
* liblzma: Fixed the use of presets in threaded encoder
initialization.
* xz --block-list and --block-size can now be used together
in single-threaded mode. Previously the combination only
worked in multi-threaded mode.
* Added support for LZMA_IGNORE_CHECK to liblzma and made it
available in xz as --ignore-check.
* liblzma speed optimizations:
- Initialization of a new LZMA1 or LZMA2 encoder has been
optimized. (The speed of reinitializing an already-allocated
encoder isn't affected.) This helps when compressing many
small buffers with lzma_stream_buffer_encode() and other
similar situations where an already-allocated encoder state
isn't reused. This speed-up is visible in xz too if one
compresses many small files one at a time instead running xz
once and giving all files as command-line arguments.
- Buffer comparisons are now much faster when unaligned access
is allowed (configured with --enable-unaligned-access). This
speeds up encoding significantly. There is arch-specific code
for 32-bit and 64-bit x86 (32-bit needs SSE2 for the best
results and there's no run-time CPU detection for now).
For other archs there is only generic code which probably
isn't as optimal as arch-specific solutions could be.
- A few speed optimizations were made to the SHA-256 code.
(Note that the builtin SHA-256 code isn't used on all
operating systems.)
* liblzma can now be built with MSVC 2013 update 2 or later
using windows/config.h.
* Vietnamese translation was added.
5.1.3alpha (2013-10-26)
* All fixes from 5.0.5
* liblzma:
- Fixed a deadlock in the threaded encoder.
- Made the uses of lzma_allocator const correct.
- Added lzma_block_uncomp_encode() to create uncompressed
.xz Blocks using LZMA2 uncompressed chunks.
- Added support for native threads on Windows and the ability
to detect the number of CPU cores.
* xz:
- Fixed a race condition in the signal handling. It was
possible that e.g. the first SIGINT didn't make xz exit
if reading or writing blocked and one had bad luck. The fix
is non-trivial, so as of writing it is unknown if it will be
backported to the v5.0 branch.
- Made the progress indicator work correctly in threaded mode.
- Threaded encoder now works together with --block-list=SIZES.
- Added preliminary support for --flush-timeout=TIMEOUT.
It can be useful for (somewhat) real-time streaming. For
now the decompression side has to be done with something
else than the xz tool due to how xz does buffering, but this
should be fixed.
5.1.2alpha (2012-07-04)
* All fixes from 5.0.3 and 5.0.4
* liblzma:
- Fixed a deadlock and an invalid free() in the threaded encoder.
- Added support for symbol versioning. It is enabled by default
on GNU/Linux, other GNU-based systems, and FreeBSD.
- Use SHA-256 implementation from the operating system if one is
available in libc, libmd, or libutil. liblzma won't use e.g.
OpenSSL or libgcrypt to avoid introducing new dependencies.
- Fixed liblzma.pc for static linking.
- Fixed a few portability bugs.
* xz --decompress --single-stream now fixes the input position after
successful decompression. Now the following works:
echo foo | xz > foo.xz
echo bar | xz >> foo.xz
( xz -dc --single-stream ; xz -dc --single-stream ) < foo.xz
Note that it doesn't work if the input is not seekable
or if there is Stream Padding between the concatenated
.xz Streams.
* xz -lvv now shows the minimum xz version that is required to
decompress the file. Currently it is 5.0.0 for all supported .xz
files except files with empty LZMA2 streams require 5.0.2.
* Added an *incomplete* implementation of --block-list=SIZES to xz.
It only works correctly in single-threaded mode and when
--block-size isn't used at the same time. --block-list allows
specifying the sizes of Blocks which can be useful e.g. when
creating files for random-access reading.
5.1.1alpha (2011-04-12)
* All fixes from 5.0.2
* liblzma fixes that will also be included in 5.0.3:
- A memory leak was fixed.
- lzma_stream_buffer_encode() no longer creates an empty .xz
Block if encoding an empty buffer. Such an empty Block with
LZMA2 data would trigger a bug in 5.0.1 and older (see the
first bullet point in 5.0.2 notes). When releasing 5.0.2,
I thought that no encoder creates this kind of files but
I was wrong.
- Validate function arguments better in a few functions. Most
importantly, specifying an unsupported integrity check to
lzma_stream_buffer_encode() no longer creates a corrupt .xz
file. Probably no application tries to do that, so this
shouldn't be a big problem in practice.
- Document that lzma_block_buffer_encode(),
lzma_easy_buffer_encode(), lzma_stream_encoder(), and
lzma_stream_buffer_encode() may return LZMA_UNSUPPORTED_CHECK.
- The return values of the _memusage() functions are now
documented better.
* Support for multithreaded compression was added using the simplest
method, which splits the input data into blocks and compresses
them independently. Other methods will be added in the future.
The current method has room for improvement, e.g. it is possible
to reduce the memory usage.
* Added the options --single-stream and --block-size=SIZE to xz.
* xzdiff and xzgrep now support .lzo files if lzop is installed.
The .tzo suffix is also recognized as a shorthand for .tar.lzo.
* Support for short 8.3 filenames under DOS was added to xz. It is
experimental and may change before it gets into a stable release.
5.0.8 (2014-12-21)
* Fixed an old bug in xzgrep that affected OpenBSD and probably
a few other operating systems too.
* Updated French and German translations.
* Added support for detecting the amount of RAM on AmigaOS/AROS.
* Minor build system updates.
5.0.7 (2014-09-20)
* Fix regressions introduced in 5.0.6:
- Fix building with non-GNU make.
- Fix invalid Libs.private value in liblzma.pc which broke
static linking against liblzma if the linker flags were
taken from pkg-config.
5.0.6 (2014-09-14)
* xzgrep now exits with status 0 if at least one file matched.
* A few minor portability and build system fixes
5.0.5 (2013-06-30)
* lzmadec and liblzma's lzma_alone_decoder(): Support decompressing
.lzma files that have less common settings in the headers
(dictionary size other than 2^n or 2^n + 2^(n-1), or uncompressed
size greater than 256 GiB). The limitations existed to avoid false
positives when detecting .lzma files. The lc + lp <= 4 limitation
still remains since liblzma's LZMA decoder has that limitation.
NOTE: xz's .lzma support or liblzma's lzma_auto_decoder() are NOT
affected by this change. They still consider uncommon .lzma headers
as not being in the .lzma format. Changing this would give way too
many false positives.
* xz:
- Interaction of preset and custom filter chain options was
made less illogical. This affects only certain less typical
uses cases so few people are expected to notice this change.
Now when a custom filter chain option (e.g. --lzma2) is
specified, all preset options (-0 ... -9, -e) earlier are on
the command line are completely forgotten. Similarly, when
a preset option is specified, all custom filter chain options
earlier on the command line are completely forgotten.
Example 1: "xz -9 --lzma2=preset=5 -e" is equivalent to "xz -e"
which is equivalent to "xz -6e". Earlier -e didn't put xz back
into preset mode and thus the example command was equivalent
to "xz --lzma2=preset=5".
Example 2: "xz -9e --lzma2=preset=5 -7" is equivalent to
"xz -7". Earlier a custom filter chain option didn't make
xz forget the -e option so the example was equivalent to
"xz -7e".
- Fixes and improvements to error handling.
- Various fixes to the man page.
* xzless: Fixed to work with "less" versions 448 and later.
* xzgrep: Made -h an alias for --no-filename.
* Include the previously missing debug/translation.bash which can
be useful for translators.
* Include a build script for Mac OS X. This has been in the Git
repository since 2010 but due to a mistake in Makefile.am the
script hasn't been included in a release tarball before.
5.0.4 (2012-06-22)
* liblzma:
- Fix lzma_index_init(). It could crash if memory allocation
failed.
- Fix the possibility of an incorrect LZMA_BUF_ERROR when a BCJ
filter is used and the application only provides exactly as
much output space as is the uncompressed size of the file.
- Fix a bug in doc/examples_old/xz_pipe_decompress.c. It didn't
check if the last call to lzma_code() really returned
LZMA_STREAM_END, which made the program think that truncated
files are valid.
- New example programs in doc/examples (old programs are now in
doc/examples_old). These have more comments and more detailed
error handling.
* Fix "xz -lvv foo.xz". It could crash on some corrupted files.
* Fix output of "xz --robot -lv" and "xz --robot -lvv" which
incorrectly printed the filename also in the "foo (x/x)" format.
* Fix exit status of "xzdiff foo.xz bar.xz".
* Fix exit status of "xzgrep foo binary_file".
* Fix portability to EBCDIC systems.
* Fix a configure issue on AIX with the XL C compiler. See INSTALL
for details.
* Update French, German, Italian, and Polish translations.
5.0.3 (2011-05-21)
* liblzma fixes:

60
README
View File

@@ -5,7 +5,7 @@ XZ Utils
0. Overview
1. Documentation
1.1. Overall documentation
1.2. Documentation for command-line tools
1.2. Documentation for command line tools
1.3. Documentation for liblzma
2. Version numbering
3. Reporting bugs
@@ -17,21 +17,21 @@ XZ Utils
0. Overview
-----------
XZ Utils provide a general-purpose data-compression library plus
command-line tools. The native file format is the .xz format, but
XZ Utils provide a general-purpose data compression library and
command line tools. The native file format is the .xz format, but
also the legacy .lzma format is supported. The .xz format supports
multiple compression algorithms, which are called "filters" in the
multiple compression algorithms, which are called "filters" in
context of XZ Utils. The primary filter is currently LZMA2. With
typical files, XZ Utils create about 30 % smaller files than gzip.
To ease adapting support for the .xz format into existing applications
and scripts, the API of liblzma is somewhat similar to the API of the
popular zlib library. For the same reason, the command-line tool xz
has a command-line syntax similar to that of gzip.
popular zlib library. For the same reason, the command line tool xz
has similar command line syntax than that of gzip.
When aiming for the highest compression ratio, the LZMA2 encoder uses
When aiming for the highest compression ratio, LZMA2 encoder uses
a lot of CPU time and may use, depending on the settings, even
hundreds of megabytes of RAM. However, in fast modes, the LZMA2 encoder
hundreds of megabytes of RAM. However, in fast modes, LZMA2 encoder
competes with bzip2 in compression speed, RAM usage, and compression
ratio.
@@ -44,8 +44,8 @@ XZ Utils
since that needs to be done only once to benefit many people.
With some file types, combining (or "chaining") LZMA2 with an
additional filter can improve the compression ratio. A filter chain may
contain up to four filters, although usually only one or two are used.
additional filter can improve compression ratio. A filter chain may
contain up to four filters, although usually only one two is used.
For example, putting a BCJ (Branch/Call/Jump) filter before LZMA2
in the filter chain can improve compression ratio of executable files.
@@ -88,9 +88,9 @@ XZ Utils
packages.
1.2. Documentation for command-line tools
1.2. Documentation for command line tools
The command-line tools are documented as man pages. In source code
The command line tools are documented as man pages. In source code
releases (and possibly also in some binary packages), the man pages
are also provided in plain text (ASCII only) and PDF formats in the
directory "doc/man" to make the man pages more accessible to those
@@ -109,8 +109,8 @@ XZ Utils
written yet.
For now, if you have never used liblzma, libbzip2, or zlib, I
recommend learning the *basics* of the zlib API. Once you know that,
it should be easier to learn liblzma.
recommend learning *basics* of zlib API. Once you know that, it
should be easier to learn liblzma.
http://zlib.net/manual.html
http://zlib.net/zlib_how.html
@@ -124,27 +124,23 @@ XZ Utils
- X is the major version. When this is incremented, the library
API and ABI break.
- Y is the minor version. It is incremented when new features
are added without breaking the existing API or ABI. An even Y
indicates a stable release and an odd Y indicates unstable
(alpha or beta version).
- Y is the minor version. It is incremented when new features are
added without breaking existing API or ABI. Even Y indicates
stable release and odd Y indicates unstable (alpha or beta
version).
- Z is the revision. This has a different meaning for stable and
- Z is the revision. This has different meaning for stable and
unstable releases:
* Stable: Z is incremented when bugs get fixed without adding
any new features. This is intended to be convenient for
downstream distributors that want bug fixes but don't want
any new features to minimize the risk of introducing new bugs.
any new features.
* Unstable: Z is just a counter. API or ABI of features added
in earlier unstable releases having the same X.Y may break.
- S indicates stability of the release. It is missing from the
stable releases, where Y is an even number. When Y is odd, S
stable releases where Y is an even number. When Y is odd, S
is either "alpha" or "beta" to make it very clear that such
versions are not stable releases. The same X.Y.Z combination is
not used for more than one stability level, i.e. after X.Y.Zalpha,
not used for more than one stability level i.e. after X.Y.Zalpha,
the next version can be X.Y.(Z+1)beta but not X.Y.Zbeta.
@@ -180,7 +176,7 @@ XZ Utils
Don't send core dump files or any executables. If you have a small
example file(s) (total size less than 256 KiB), please include
it/them as an attachment. If you have bigger test files, put them
online somewhere and include a URL to the file(s) in the bug report.
online somewhere and include an URL to the file(s) in the bug report.
Always include the exact version number of XZ Utils in the bug report.
If you are using a snapshot from the git repository, use "git describe"
@@ -197,7 +193,7 @@ XZ Utils
The messages from the xz tool have been translated into a few
languages. Before starting to translate into a new language, ask
the author whether someone else hasn't already started working on it.
the author that someone else hasn't already started working on it.
Test your translation. Testing includes comparing the translated
output to the original English version by running the same commands
@@ -210,15 +206,15 @@ XZ Utils
# <Edit the .po file in the po directory.>
make -C po update-po
make install
bash debug/translation.bash | less
bash debug/translation.bash | less -S # For --list outputs
bash debug/translations.bash | less
bash debug/translations.bash | less -S # For --list outputs
Repeat the above as needed (no need to re-run configure though).
Note especially the following:
- The output of --help and --long-help must look nice on
an 80-column terminal. It's OK to add extra lines if needed.
a 80-column terminal. It's OK to add extra lines if needed.
- In contrast, don't add extra lines to error messages and such.
They are often preceded with e.g. a filename on the same line,
@@ -291,7 +287,7 @@ XZ Utils
XZ Embedded is a limited implementation written for use in the Linux
kernel, but it is also suitable for other embedded use.
https://tukaani.org/xz/embedded.html
http://tukaani.org/xz/embedded.html
6. Contact information

40
THANKS
View File

@@ -6,110 +6,70 @@ Some people have helped more, some less, but nevertheless everyone's help
has been important. :-) In alphabetical order:
- Mark Adler
- H. Peter Anvin
- Jeff Bastian
- Nelson H. F. Beebe
- Karl Berry
- Anders F. Björklund
- Emmanuel Blot
- Melanie Blower
- Martin Blumenstingl
- Ben Boeckel
- Jakub Bogusz
- Maarten Bosmans
- Trent W. Buck
- James Buren
- David Burklund
- Daniel Mealha Cabrita
- Milo Casagrande
- Marek Černocký
- Tomer Chachamu
- Gabi Davar
- Chris Donawa
- Andrew Dudman
- Markus Duft
- İsmail Dönmez
- Robert Elz
- Gilles Espinasse
- Denis Excoffier
- Michael Felt
- Michael Fox
- Mike Frysinger
- Daniel Richard G.
- Bill Glessner
- Jason Gorski
- Juan Manuel Guerrero
- Diederik de Haas
- Joachim Henke
- Christian Hesse
- Vincenzo Innocente
- Peter Ivanov
- Jouk Jansen
- Jun I Jin
- Per Øyvind Karlsen
- Thomas Klausner
- Richard Koch
- Ville Koskinen
- Jan Kratochvil
- Christian Kujau
- Stephan Kulow
- Peter Lawler
- James M Leddy
- Hin-Tak Leung
- Andraž 'ruskie' Levstik
- Cary Lewis
- Wim Lewis
- Eric Lindblad
- Lorenzo De Liso
- Bela Lubkin
- Gregory Margo
- Jim Meyering
- Arkadiusz Miskiewicz
- Conley Moorhous
- Rafał Mużyło
- Adrien Nader
- Evan Nemerson
- Hongbo Ni
- Jonathan Nieder
- Andre Noll
- Peter O'Gorman
- Peter Pallinger
- Rui Paulo
- Igor Pavlov
- Diego Elio Pettenò
- Elbert Pol
- Mikko Pouru
- Rich Prohaska
- Trần Ngọc Quân
- Pavel Raiskup
- Ole André Vadla Ravnås
- Robert Readman
- Bernhard Reutner-Fischer
- Eric S. Raymond
- Cristian Rodríguez
- Christian von Roques
- Torsten Rupp
- Jukka Salmi
- Alexandre Sauvé
- Benno Schulenberg
- Andreas Schwab
- Dan Shechter
- Stuart Shelton
- Sebastian Andrzej Siewior
- Brad Smith
- Pippijn van Steenhoven
- Jonathan Stott
- Dan Stromberg
- Vincent Torri
- Paul Townsend
- Mohammed Adnène Trojette
- Alexey Tourbin
- Patrick J. Volkerding
- Martin Väth
- Adam Walling
- Christian Weisgerber
- Bert Wesarg
- Fredrik Wikstrom
- Jim Wilcoxson
- Ralf Wildenhues
- Charles Wilson
- Lars Wirzenius

62
TODO
View File

@@ -12,6 +12,10 @@ Known bugs
it would be possible by switching from BT2/BT3/BT4 match finder to
HC3/HC4.
The code to detect number of CPU cores doesn't count hyperthreading
as multiple cores. In context of xz, it probably should.
Hyperthreading is good at least with p7zip.
XZ Utils compress some files significantly worse than LZMA Utils.
This is due to faster compression presets used by XZ Utils, and
can often be worked around by using "xz --extreme". With some files
@@ -28,36 +32,14 @@ Known bugs
time and calculated (de)compression speed won't make sense in the
progress indicator (xz --verbose).
If liblzma has created threads and fork() gets called, liblzma
code will break in the child process unless it calls exec() and
doesn't touch liblzma.
Missing features
----------------
Add support for storing metadata in .xz files. A preliminary
idea is to create a new Stream type for metadata. When both
metadata and data are wanted in the same .xz file, two or more
Streams would be concatenated.
The state stored in lzma_stream should be cloneable, which would
be mostly useful when using a preset dictionary in LZMA2, but
it may have other uses too. Compare to deflateCopy() in zlib.
Support LZMA_FINISH in raw decoder to indicate end of LZMA1 and
other streams that don't have an end of payload marker.
Adjust dictionary size when the input file size is known.
Maybe do this only if an option is given.
xz doesn't support copying extended attributes, access control
lists etc. from source to target file.
Multithreaded compression:
- Reduce memory usage of the current method.
- Implement threaded match finders.
- Implement pigz-style threading in LZMA2.
Multithreaded compression
Multithreaded decompression
@@ -68,44 +50,18 @@ Missing features
It will be a separate library that supports uncompressed, .gz,
.bz2, .lzma, and .xz files.
Support changing lzma_options_lzma.mode with lzma_filters_update().
Support LZMA_FULL_FLUSH for lzma_stream_decoder() to stop at
Block and Stream boundaries.
lzma_strerror() to convert lzma_ret to human readable form?
This is tricky, because the same error codes are used with
slightly different meanings, and this cannot be fixed anymore.
Make it possible to adjust LZMA2 options in the middle of a Block
so that the encoding speed vs. compression ratio can be optimized
when the compressed data is streamed over network.
Improved BCJ filters. The current filters are small but they aren't
so great when compressing binary packages that contain various file
types. Specifically, they make things worse if there are static
libraries or Linux kernel modules. The filtering could also be
more effective (without getting overly complex), for example,
streamable variant BCJ2 from 7-Zip could be implemented.
Filter that autodetects specific data types in the input stream
and applies appropriate filters for the corrects parts of the input.
Perhaps combine this with the BCJ filter improvement point above.
Long-range LZ77 method as a separate filter or as a new LZMA2
match finder.
Documentation
-------------
More tutorial programs are needed for liblzma.
Some tutorial is needed for liblzma. I have planned to write some
extremely well commented example programs, which would work as
a tutorial. I suppose the Doxygen tags are quite OK as a quick
reference once one is familiar with the liblzma API.
Document the LZMA1 and LZMA2 algorithms.
Miscellaneous
------------
Try to get the media type for .xz registered at IANA.

2
build-aux/version.sh
View File

@@ -21,4 +21,4 @@ sed -n 's/LZMA_VERSION_STABILITY_ALPHA/alpha/
src/liblzma/api/lzma/version.h \
| tr '\n' '|' \
| sed 's/|/./; s/|/./; s/|//g' \
| tr -d '\r\n'
| tr -d '\n'

374
configure.ac
View File

@@ -18,7 +18,7 @@
AC_PREREQ([2.64])
AC_INIT([XZ Utils], m4_esyscmd([/bin/sh build-aux/version.sh]),
[lasse.collin@tukaani.org], [xz], [https://tukaani.org/xz/])
[lasse.collin@tukaani.org], [xz], [http://tukaani.org/xz/])
AC_CONFIG_SRCDIR([src/liblzma/common/common.h])
AC_CONFIG_AUX_DIR([build-aux])
AC_CONFIG_MACRO_DIR([m4])
@@ -34,8 +34,8 @@ AC_CANONICAL_HOST
# We do some special things on Windows (32-bit or 64-bit) builds.
case $host_os in
mingw* | cygwin | msys) is_w32=yes ;;
*) is_w32=no ;;
mingw* | cygwin*) is_w32=yes ;;
*) is_w32=no ;;
esac
AM_CONDITIONAL([COND_W32], [test "$is_w32" = yes])
@@ -43,15 +43,9 @@ AM_CONDITIONAL([COND_W32], [test "$is_w32" = yes])
# executables. Cygwin is an exception to this, since it is recommended
# that symlinks don't have the .exe suffix. To make this work, we
# define LN_EXEEXT.
#
# MSYS2 is treated the same way as Cygwin. It uses plain "msys" like
# the original MSYS when building MSYS/MSYS2-binaries. Hopefully this
# doesn't break things for the original MSYS developers. Note that this
# doesn't affect normal MSYS/MSYS2 users building non-MSYS/MSYS2 binaries
# since in that case the $host_os is usually mingw32.
case $host_os in
cygwin | msys) LN_EXEEXT= ;;
*) LN_EXEEXT='$(EXEEXT)' ;;
cygwin) LN_EXEEXT= ;;
*) LN_EXEEXT='$(EXEEXT)' ;;
esac
AC_SUBST([LN_EXEEXT])
@@ -65,7 +59,7 @@ AM_CFLAGS=
#############
AC_MSG_CHECKING([if debugging code should be compiled])
AC_ARG_ENABLE([debug], AS_HELP_STRING([--enable-debug], [Enable debugging code.]),
AC_ARG_ENABLE([debug], AC_HELP_STRING([--enable-debug], [Enable debugging code.]),
[], enable_debug=no)
if test "x$enable_debug" = xyes; then
AC_MSG_RESULT([yes])
@@ -90,14 +84,13 @@ enable_decoder_[]NAME=no
])dnl
AC_MSG_CHECKING([which encoders to build])
AC_ARG_ENABLE([encoders], AS_HELP_STRING([--enable-encoders=LIST],
AC_ARG_ENABLE([encoders], AC_HELP_STRING([--enable-encoders=LIST],
[Comma-separated list of encoders to build. Default=all.
Available encoders:]
m4_translit(m4_defn([SUPPORTED_FILTERS]), [,], [ ])),
[], [enable_encoders=SUPPORTED_FILTERS])
enable_encoders=`echo "$enable_encoders" | sed 's/,/ /g'`
if test "x$enable_encoders" = xno || test "x$enable_encoders" = x; then
enable_encoders=no
AC_MSG_RESULT([(none)])
else
for arg in $enable_encoders
@@ -115,19 +108,16 @@ else
;;
esac
done
AC_DEFINE([HAVE_ENCODERS], [1],
[Define to 1 if any of HAVE_ENCODER_foo have been defined.])
AC_MSG_RESULT([$enable_encoders])
fi
AC_MSG_CHECKING([which decoders to build])
AC_ARG_ENABLE([decoders], AS_HELP_STRING([--enable-decoders=LIST],
AC_ARG_ENABLE([decoders], AC_HELP_STRING([--enable-decoders=LIST],
[Comma-separated list of decoders to build. Default=all.
Available decoders are the same as available encoders.]),
[], [enable_decoders=SUPPORTED_FILTERS])
enable_decoders=`echo "$enable_decoders" | sed 's/,/ /g'`
if test "x$enable_decoders" = xno || test "x$enable_decoders" = x; then
enable_decoders=no
AC_MSG_RESULT([(none)])
else
for arg in $enable_decoders
@@ -145,8 +135,11 @@ else
;;
esac
done
AC_DEFINE([HAVE_DECODERS], [1],
[Define to 1 if any of HAVE_DECODER_foo have been defined.])
# LZMA2 requires that LZMA1 is enabled.
test "x$enable_encoder_lzma2" = xyes && enable_encoder_lzma1=yes
test "x$enable_decoder_lzma2" = xyes && enable_decoder_lzma1=yes
AC_MSG_RESULT([$enable_decoders])
fi
@@ -155,8 +148,8 @@ if test "x$enable_encoder_lzma2$enable_encoder_lzma1" = xyesno \
AC_MSG_ERROR([LZMA2 requires that LZMA1 is also enabled.])
fi
AM_CONDITIONAL(COND_MAIN_ENCODER, test "x$enable_encoders" != xno)
AM_CONDITIONAL(COND_MAIN_DECODER, test "x$enable_decoders" != xno)
AM_CONDITIONAL(COND_MAIN_ENCODER, test "x$enable_encoders" != xno && test "x$enable_encoders" != x)
AM_CONDITIONAL(COND_MAIN_DECODER, test "x$enable_decoders" != xno && test "x$enable_decoders" != x)
m4_foreach([NAME], [SUPPORTED_FILTERS],
[AM_CONDITIONAL(COND_FILTER_[]m4_toupper(NAME), test "x$enable_filter_[]NAME" = xyes)
@@ -202,7 +195,7 @@ m4_foreach([NAME], [SUPPORTED_MATCH_FINDERS],
])
AC_MSG_CHECKING([which match finders to build])
AC_ARG_ENABLE([match-finders], AS_HELP_STRING([--enable-match-finders=LIST],
AC_ARG_ENABLE([match-finders], AC_HELP_STRING([--enable-match-finders=LIST],
[Comma-separated list of match finders to build. Default=all.
At least one match finder is required for encoding with
the LZMA1 and LZMA2 filters. Available match finders:]
@@ -241,7 +234,7 @@ m4_foreach([NAME], [SUPPORTED_CHECKS],
])dnl
AC_MSG_CHECKING([which integrity checks to build])
AC_ARG_ENABLE([checks], AS_HELP_STRING([--enable-checks=LIST],
AC_ARG_ENABLE([checks], AC_HELP_STRING([--enable-checks=LIST],
[Comma-separated list of integrity checks to build.
Default=all. Available integrity checks:]
m4_translit(m4_defn([SUPPORTED_CHECKS]), [,], [ ])),
@@ -267,7 +260,7 @@ else
done
AC_MSG_RESULT([$enable_checks])
fi
if test "x$enable_check_crc32" = xno ; then
if test "x$enable_checks_crc32" = xno ; then
AC_MSG_ERROR([For now, the CRC32 check must always be enabled.])
fi
@@ -275,27 +268,13 @@ m4_foreach([NAME], [SUPPORTED_CHECKS],
[AM_CONDITIONAL(COND_CHECK_[]m4_toupper(NAME), test "x$enable_check_[]NAME" = xyes)
])dnl
AC_MSG_CHECKING([if external SHA-256 should be used])
AC_ARG_ENABLE([external-sha256], AS_HELP_STRING([--enable-external-sha256],
[Use SHA-256 code from the operating system.
See INSTALL for possible subtle problems.]),
[], [enable_external_sha256=no])
if test "x$enable_check_sha256" != "xyes"; then
enable_external_sha256=no
fi
if test "x$enable_external_sha256" = xyes; then
AC_MSG_RESULT([yes])
else
AC_MSG_RESULT([no])
fi
###########################
# Assembler optimizations #
###########################
AC_MSG_CHECKING([if assembler optimizations should be used])
AC_ARG_ENABLE([assembler], AS_HELP_STRING([--disable-assembler],
AC_ARG_ENABLE([assembler], AC_HELP_STRING([--disable-assembler],
[Do not use assembler optimizations even if such exist
for the architecture.]),
[], [enable_assembler=yes])
@@ -304,7 +283,7 @@ if test "x$enable_assembler" = xyes; then
case $host_os in
# Darwin should work too but only if not creating universal
# binaries. Solaris x86 could work too but I cannot test.
linux* | *bsd* | mingw* | cygwin | msys | *djgpp*)
linux* | *bsd* | mingw* | cygwin* | *djgpp*)
case $host_cpu in
i?86) enable_assembler=x86 ;;
x86_64) enable_assembler=x86_64 ;;
@@ -318,7 +297,7 @@ case $enable_assembler in
;;
*)
AC_MSG_RESULT([])
AC_MSG_ERROR([--enable-assembler accepts only `yes', `no', `x86', or `x86_64'.])
AC_MSG_ERROR([--enable-assembler accepts only \`yes', \`no', \`x86', or \`x86_64'.])
;;
esac
AM_CONDITIONAL(COND_ASM_X86, test "x$enable_assembler" = xx86)
@@ -330,7 +309,7 @@ AM_CONDITIONAL(COND_ASM_X86_64, test "x$enable_assembler" = xx86_64)
#####################
AC_MSG_CHECKING([if small size is preferred over speed])
AC_ARG_ENABLE([small], AS_HELP_STRING([--enable-small],
AC_ARG_ENABLE([small], AC_HELP_STRING([--enable-small],
[Make liblzma smaller and a little slower.
This is disabled by default to optimize for speed.]),
[], [enable_small=no])
@@ -338,7 +317,7 @@ if test "x$enable_small" = xyes; then
AC_DEFINE([HAVE_SMALL], [1], [Define to 1 if optimizing for size.])
elif test "x$enable_small" != xno; then
AC_MSG_RESULT([])
AC_MSG_ERROR([--enable-small accepts only `yes' or `no'])
AC_MSG_ERROR([--enable-small accepts only \`yes' or \`no'])
fi
AC_MSG_RESULT([$enable_small])
AM_CONDITIONAL(COND_SMALL, test "x$enable_small" = xyes)
@@ -349,47 +328,15 @@ AM_CONDITIONAL(COND_SMALL, test "x$enable_small" = xyes)
#############
AC_MSG_CHECKING([if threading support is wanted])
AC_ARG_ENABLE([threads], AS_HELP_STRING([--enable-threads=METHOD],
[Supported METHODS are `yes', `no', `posix', `win95', and
`vista'. The default is `yes'. Using `no' together with
--enable-small makes liblzma thread unsafe.]),
AC_ARG_ENABLE([threads], AC_HELP_STRING([--disable-threads],
[Disable threading support.
This makes some things thread-unsafe.]),
[], [enable_threads=yes])
if test "x$enable_threads" = xyes; then
case $host_os in
mingw*)
case $host_cpu in
i?86) enable_threads=win95 ;;
*) enable_threads=vista ;;
esac
;;
*)
enable_threads=posix
;;
esac
if test "x$enable_threads" != xyes && test "x$enable_threads" != xno; then
AC_MSG_RESULT([])
AC_MSG_ERROR([--enable-threads accepts only \`yes' or \`no'])
fi
case $enable_threads in
posix | win95 | vista)
AC_MSG_RESULT([yes, $enable_threads])
;;
no)
AC_MSG_RESULT([no])
;;
*)
AC_MSG_RESULT([])
AC_MSG_ERROR([--enable-threads only accepts `yes', `no', `posix', `win95', or `vista'])
;;
esac
# The Win95 threading lacks thread-safe one-time initialization function.
# It's better to disallow it instead of allowing threaded but thread-unsafe
# build.
if test "x$enable_small$enable_threads" = xyeswin95; then
AC_MSG_ERROR([--enable-threads=win95 and --enable-small cannot be
used at the same time])
fi
AC_MSG_RESULT([$enable_threads])
# We use the actual result a little later.
@@ -402,7 +349,7 @@ fi
# but most systems, on which we don't have any way to determine the amount
# of RAM, will probably have at least 128 MiB of RAM.
AC_MSG_CHECKING([how much RAM to assume if the real amount is unknown])
AC_ARG_ENABLE([assume-ram], AS_HELP_STRING([--enable-assume-ram=SIZE],
AC_ARG_ENABLE([assume-ram], AC_HELP_STRING([--enable-assume-ram=SIZE],
[If and only if the real amount of RAM cannot be determined,
assume SIZE MiB. The default is 128 MiB. This affects the
default memory usage limit.]),
@@ -422,99 +369,39 @@ AC_DEFINE_UNQUOTED([ASSUME_RAM], [$enable_assume_ram],
# Components to install #
#########################
AC_ARG_ENABLE([xz], [AS_HELP_STRING([--disable-xz],
AC_ARG_ENABLE([xz], [AC_HELP_STRING([--disable-xz],
[do not build the xz tool])],
[], [enable_xz=yes])
AM_CONDITIONAL([COND_XZ], [test x$enable_xz != xno])
AC_ARG_ENABLE([xzdec], [AS_HELP_STRING([--disable-xzdec],
AC_ARG_ENABLE([xzdec], [AC_HELP_STRING([--disable-xzdec],
[do not build xzdec])],
[], [enable_xzdec=yes])
test "x$enable_decoders" = xno && enable_xzdec=no
AM_CONDITIONAL([COND_XZDEC], [test x$enable_xzdec != xno])
AC_ARG_ENABLE([lzmadec], [AS_HELP_STRING([--disable-lzmadec],
AC_ARG_ENABLE([lzmadec], [AC_HELP_STRING([--disable-lzmadec],
[do not build lzmadec
(it exists primarily for LZMA Utils compatibility)])],
[], [enable_lzmadec=yes])
test "x$enable_decoder_lzma1" = xno && enable_lzmadec=no
AM_CONDITIONAL([COND_LZMADEC], [test x$enable_lzmadec != xno])
AC_ARG_ENABLE([lzmainfo], [AS_HELP_STRING([--disable-lzmainfo],
AC_ARG_ENABLE([lzmainfo], [AC_HELP_STRING([--disable-lzmainfo],
[do not build lzmainfo
(it exists primarily for LZMA Utils compatibility)])],
[], [enable_lzmainfo=yes])
test "x$enable_decoder_lzma1" = xno && enable_lzmainfo=no
AM_CONDITIONAL([COND_LZMAINFO], [test x$enable_lzmainfo != xno])
AC_ARG_ENABLE([lzma-links], [AS_HELP_STRING([--disable-lzma-links],
AC_ARG_ENABLE([lzma-links], [AC_HELP_STRING([--disable-lzma-links],
[do not create symlinks for LZMA Utils compatibility])],
[], [enable_lzma_links=yes])
AM_CONDITIONAL([COND_LZMALINKS], [test x$enable_lzma_links != xno])
AC_ARG_ENABLE([scripts], [AS_HELP_STRING([--disable-scripts],
AC_ARG_ENABLE([scripts], [AC_HELP_STRING([--disable-scripts],
[do not install the scripts xzdiff, xzgrep, xzless, xzmore,
and their symlinks])],
[], [enable_scripts=yes])
AM_CONDITIONAL([COND_SCRIPTS], [test x$enable_scripts != xno])
AC_ARG_ENABLE([doc], [AS_HELP_STRING([--disable-doc],
[do not install documentation files to docdir
(man pages will still be installed)])],
[], [enable_doc=yes])
AM_CONDITIONAL([COND_DOC], [test x$enable_doc != xno])
#####################
# Symbol versioning #
#####################
AC_MSG_CHECKING([if library symbol versioning should be used])
AC_ARG_ENABLE([symbol-versions], [AS_HELP_STRING([--enable-symbol-versions],
[Use symbol versioning for liblzma. Enabled by default on
GNU/Linux, other GNU-based systems, and FreeBSD.])],
[], [enable_symbol_versions=auto])
if test "x$enable_symbol_versions" = xauto; then
case $host_os in
# NOTE: Even if one omits -gnu on GNU/Linux (e.g.
# i486-slackware-linux), configure will (via config.sub)
# append -gnu (e.g. i486-slackware-linux-gnu), and this
# test will work correctly.
gnu* | *-gnu* | freebsd*)
enable_symbol_versions=yes
;;
*)
enable_symbol_versions=no
;;
esac
fi
AC_MSG_RESULT([$enable_symbol_versions])
AM_CONDITIONAL([COND_SYMVERS], [test "x$enable_symbol_versions" = xyes])
##############
# Sandboxing #
##############
AC_MSG_CHECKING([if sandboxing should be used])
AC_ARG_ENABLE([sandbox], [AS_HELP_STRING([--enable-sandbox=METHOD],
[This is an experimental feature.
Sandboxing METHOD can be `auto', `no', or `capsicum'.
The default is `no'.])],
[], [enable_sandbox=no])
case $enable_sandbox in
auto)
AC_MSG_RESULT([maybe (autodetect)])
;;
no | capsicum)
AC_MSG_RESULT([$enable_sandbox])
;;
*)
AC_MSG_RESULT([])
AC_MSG_ERROR([--enable-sandbox only accepts `auto', `no', or `capsicum'.])
;;
esac
###############################################################################
# Checks for programs.
@@ -522,19 +409,14 @@ esac
echo
gl_POSIX_SHELL
if test -z "$POSIX_SHELL" && test "x$enable_scripts" = xyes ; then
if test -z "$POSIX_SHELL" ; then
AC_MSG_ERROR([No POSIX conforming shell (sh) was found.])
fi
echo
echo "Initializing Automake:"
# We don't use "subdir-objects" yet because it breaks "make distclean" when
# dependencies are enabled (as of Automake 1.14.1) due to this bug:
# http://debbugs.gnu.org/cgi/bugreport.cgi?bug=17354
# The -Wno-unsupported is used to silence warnings about missing
# "subdir-objects".
AM_INIT_AUTOMAKE([1.12 foreign tar-v7 filename-length-max=99 serial-tests -Wno-unsupported])
AM_INIT_AUTOMAKE([1.10 foreign tar-v7 filename-length-max=99])
AC_PROG_LN_S
AC_PROG_CC_C99
@@ -546,49 +428,14 @@ AM_PROG_CC_C_O
AM_PROG_AS
AC_USE_SYSTEM_EXTENSIONS
case $enable_threads in
posix)
echo
echo "POSIX threading support:"
AX_PTHREAD([:]) dnl We don't need the HAVE_PTHREAD macro.
LIBS="$LIBS $PTHREAD_LIBS"
AM_CFLAGS="$AM_CFLAGS $PTHREAD_CFLAGS"
dnl NOTE: PTHREAD_CC is ignored. It would be useful on AIX,
dnl but it's tricky to get it right together with
dnl AC_PROG_CC_C99. Thus, this is handled by telling the
dnl user in INSTALL to set the correct CC manually.
AC_DEFINE([MYTHREAD_POSIX], [1],
[Define to 1 when using POSIX threads (pthreads).])
# These are nice to have but not mandatory.
#
# FIXME: xz uses clock_gettime if it is available and can do
# it even when threading is disabled. Moving this outside
# of pthread detection may be undesirable because then
# liblzma may get linked against librt even when librt isn't
# needed by liblzma.
OLD_CFLAGS=$CFLAGS
CFLAGS="$CFLAGS $PTHREAD_CFLAGS"
AC_SEARCH_LIBS([clock_gettime], [rt])
AC_CHECK_FUNCS([clock_gettime pthread_condattr_setclock])
AC_CHECK_DECLS([CLOCK_MONOTONIC], [], [], [[#include <time.h>]])
CFLAGS=$OLD_CFLAGS
;;
win95)
AC_DEFINE([MYTHREAD_WIN95], [1], [Define to 1 when using
Windows 95 (and thus XP) compatible threads.
This avoids use of features that were added in
Windows Vista.])
;;
vista)
AC_DEFINE([MYTHREAD_VISTA], [1], [Define to 1 when using
Windows Vista compatible threads. This uses
features that are not available on Windows XP.])
;;
esac
AM_CONDITIONAL([COND_THREADS], [test "x$enable_threads" != xno])
if test "x$enable_threads" = xyes; then
echo
echo "Threading support:"
ACX_PTHREAD
LIBS="$LIBS $PTHREAD_LIBS"
AM_CFLAGS="$AM_CFLAGS $PTHREAD_CFLAGS"
CC="$PTHREAD_CC"
fi
echo
echo "Initializing Libtool:"
@@ -609,10 +456,9 @@ AM_CONDITIONAL([COND_SHARED], [test "x$enable_shared" != xno])
echo
echo "Initializing gettext:"
AM_GNU_GETTEXT_VERSION([0.19])
AM_GNU_GETTEXT_VERSION([0.16.1])
AM_GNU_GETTEXT([external])
###############################################################################
# Checks for header files.
###############################################################################
@@ -626,9 +472,6 @@ AC_CHECK_HEADERS([fcntl.h limits.h sys/time.h],
[],
[AC_MSG_ERROR([Required header file(s) are missing.])])
# This allows the use of the intrinsic functions if they are available.
AC_CHECK_HEADERS([immintrin.h])
###############################################################################
# Checks for typedefs, structures, and compiler characteristics.
@@ -651,7 +494,7 @@ AC_TYPE_UINTPTR_T
AC_CHECK_SIZEOF([size_t])
# The command line tool can copy high resolution timestamps if such
# information is available in struct stat. Otherwise one second accuracy
# information is availabe in struct stat. Otherwise one second accuracy
# is used.
AC_CHECK_MEMBERS([
struct stat.st_atim.tv_nsec,
@@ -672,10 +515,7 @@ AC_C_BIGENDIAN
gl_GETOPT
# Find the best function to set timestamps.
AC_CHECK_FUNCS([futimens futimes futimesat utimes _futime utime], [break])
# This is nice to have but not mandatory.
AC_CHECK_FUNCS([posix_fadvise])
AC_CHECK_FUNCS([futimens futimes futimesat utimes utime], [break])
TUKLIB_PROGNAME
TUKLIB_INTEGER
@@ -683,85 +523,6 @@ TUKLIB_PHYSMEM
TUKLIB_CPUCORES
TUKLIB_MBSTR
# If requsted, check for system-provided SHA-256. At least the following
# implementations are supported:
#
# OS Headers Library Type Function
# FreeBSD sys/types.h + sha256.h libmd SHA256_CTX SHA256_Init
# NetBSD sys/types.h + sha2.h SHA256_CTX SHA256_Init
# OpenBSD sys/types.h + sha2.h SHA2_CTX SHA256Init
# Solaris sys/types.h + sha2.h libmd SHA256_CTX SHA256Init
# MINIX 3 sys/types.h + sha2.h SHA256_CTX SHA256_Init
# Darwin CommonCrypto/CommonDigest.h CC_SHA256_CTX CC_SHA256_Init
#
# Note that Darwin's CC_SHA256_Update takes buffer size as uint32_t instead
# of size_t.
#
sha256_header_found=no
sha256_type_found=no
sha256_func_found=no
if test "x$enable_external_sha256" = "xyes"; then
# Test for Common Crypto before others, because Darwin has sha256.h
# too and we don't want to use that, because on older versions it
# uses OpenSSL functions, whose SHA256_Init is not guaranteed to
# succeed.
AC_CHECK_HEADERS(
[CommonCrypto/CommonDigest.h sha256.h sha2.h],
[sha256_header_found=yes ; break])
if test "x$sha256_header_found" = xyes; then
AC_CHECK_TYPES([CC_SHA256_CTX, SHA256_CTX, SHA2_CTX],
[sha256_type_found=yes], [],
[[#ifdef HAVE_SYS_TYPES_H
# include <sys/types.h>
#endif
#ifdef HAVE_COMMONCRYPTO_COMMONDIGEST_H
# include <CommonCrypto/CommonDigest.h>
#endif
#ifdef HAVE_SHA256_H
# include <sha256.h>
#endif
#ifdef HAVE_SHA2_H
# include <sha2.h>
#endif]])
if test "x$sha256_type_found" = xyes ; then
AC_SEARCH_LIBS([SHA256Init], [md])
AC_SEARCH_LIBS([SHA256_Init], [md])
AC_CHECK_FUNCS([CC_SHA256_Init SHA256Init SHA256_Init],
[sha256_func_found=yes ; break])
fi
fi
fi
AM_CONDITIONAL([COND_INTERNAL_SHA256], [test "x$sha256_func_found" = xno])
if test "x$enable_external_sha256$sha256_func_found" = xyesno; then
AC_MSG_ERROR([--enable-external-sha256 was specified but no supported external SHA-256 implementation was found])
fi
# Check for SSE2 intrinsics.
AC_CHECK_DECL([_mm_movemask_epi8],
[AC_DEFINE([HAVE__MM_MOVEMASK_EPI8], [1],
[Define to 1 if _mm_movemask_epi8 is available.])],
[],
[#ifdef HAVE_IMMINTRIN_H
#include <immintrin.h>
#endif])
# Check for sandbox support. If one is found, set enable_sandbox=found.
case $enable_sandbox in
auto | capsicum)
AX_CHECK_CAPSICUM([enable_sandbox=found], [:])
;;
esac
# If a specific sandboxing method was explicitly requested and it wasn't
# found, give an error.
case $enable_sandbox in
auto | no | found)
;;
*)
AC_MSG_ERROR([$enable_sandbox support not found])
;;
esac
###############################################################################
# If using GCC, set some additional AM_CFLAGS:
@@ -795,7 +556,6 @@ if test "$GCC" = yes ; then
for NEW_FLAG in \
-Wall \
-Wextra \
-Wvla \
-Wformat=2 \
-Winit-self \
-Wmissing-include-dirs \
@@ -817,9 +577,8 @@ if test "$GCC" = yes ; then
do
AC_MSG_CHECKING([if $CC accepts $NEW_FLAG])
OLD_CFLAGS="$CFLAGS"
CFLAGS="$CFLAGS $NEW_FLAG -Werror"
AC_COMPILE_IFELSE([AC_LANG_SOURCE(
[void foo(void); void foo(void) { }])], [
CFLAGS="$CFLAGS $NEW_FLAG"
AC_COMPILE_IFELSE([AC_LANG_SOURCE([void foo(void) { }])], [
AM_CFLAGS="$AM_CFLAGS $NEW_FLAG"
AC_MSG_RESULT([yes])
], [
@@ -829,7 +588,7 @@ if test "$GCC" = yes ; then
done
AC_ARG_ENABLE([werror],
AS_HELP_STRING([--enable-werror], [Enable -Werror to abort
AC_HELP_STRING([--enable-werror], [Enable -Werror to abort
compilation on all compiler warnings.]),
[], [enable_werror=no])
if test "x$enable_werror" = "xyes"; then
@@ -861,19 +620,20 @@ AC_CONFIG_FILES([
po/Makefile.in
lib/Makefile
src/Makefile
src/liblzma/liblzma.pc
src/liblzma/Makefile
src/liblzma/api/Makefile
src/xz/Makefile
src/xzdec/Makefile
src/lzmainfo/Makefile
src/scripts/Makefile
src/scripts/xzdiff
src/scripts/xzgrep
src/scripts/xzmore
src/scripts/xzless
tests/Makefile
debug/Makefile
])
AC_CONFIG_FILES([src/scripts/xzdiff], [chmod +x src/scripts/xzdiff])
AC_CONFIG_FILES([src/scripts/xzgrep], [chmod +x src/scripts/xzgrep])
AC_CONFIG_FILES([src/scripts/xzmore], [chmod +x src/scripts/xzmore])
AC_CONFIG_FILES([src/scripts/xzless], [chmod +x src/scripts/xzless])
AC_OUTPUT
@@ -886,15 +646,9 @@ if test x$tuklib_cv_physmem_method = xunknown; then
echo "or make a patch to add support for this operating system."
fi
if test x$tuklib_cv_cpucores_method = xunknown; then
echo
echo "WARNING:"
echo "No supported method to detect the number of CPU cores."
fi
if test "x$enable_threads$enable_small" = xnoyes; then
echo
echo "NOTE:"
echo "liblzma will be thread unsafe due the combination"
echo "of --disable-threads --enable-small."
fi
# Not threading yet so don't warn.
#if test x$tuklib_cv_cpucores_method = xunknown; then
# echo
# echo "WARNING:"
# echo "No supported method to detect the number of CPU cores."
#fi

3
debug/Makefile.am
View File

@@ -5,9 +5,6 @@
## You can do whatever you want with this file.
##
EXTRA_DIST = \
translation.bash
noinst_PROGRAMS = \
repeat \
sync_flush \

2
debug/README
View File

@@ -3,7 +3,7 @@ Debug tools
-----------
This directory contains a few tiny programs that may be helpful when
debugging XZ Utils.
debugging LZMA Utils.
These tools are not meant to be installed. Often one needs to edit
the source code a little to make the programs do the wanted things.

3
debug/full_flush.c
View File

@@ -14,8 +14,6 @@
#include "lzma.h"
#include <stdio.h>
#define CHUNK 64
static lzma_stream strm = LZMA_STREAM_INIT;
static FILE *file_in;
@@ -24,6 +22,7 @@ static FILE *file_in;
static void
encode(size_t size, lzma_action action)
{
static const size_t CHUNK = 64;
uint8_t in[CHUNK];
uint8_t out[CHUNK];
lzma_ret ret;

3
debug/sync_flush.c
View File

@@ -14,8 +14,6 @@
#include "lzma.h"
#include <stdio.h>
#define CHUNK 64
static lzma_stream strm = LZMA_STREAM_INIT;
static FILE *file_in;
@@ -24,6 +22,7 @@ static FILE *file_in;
static void
encode(size_t size, lzma_action action)
{
static const size_t CHUNK = 64;
uint8_t in[CHUNK];
uint8_t out[CHUNK];
lzma_ret ret;

31
doc/examples/00_README.txt
View File

@@ -1,31 +0,0 @@
liblzma example programs
========================
Introduction
The examples are written so that the same comments aren't
repeated (much) in later files.
On POSIX systems, the examples should build by just typing "make".
The examples that use stdin or stdout don't set stdin and stdout
to binary mode. On systems where it matters (e.g. Windows) it is
possible that the examples won't work without modification.
List of examples
01_compress_easy.c Multi-call compression using
a compression preset
02_decompress.c Multi-call decompression
03_compress_custom.c Like 01_compress_easy.c but using
a custom filter chain
(x86 BCJ + LZMA2)
04_compress_easy_mt.c Multi-threaded multi-call
compression using a compression
preset

297
doc/examples/01_compress_easy.c
View File

@@ -1,297 +0,0 @@
///////////////////////////////////////////////////////////////////////////////
//
/// \file 01_compress_easy.c
/// \brief Compress from stdin to stdout in multi-call mode
///
/// Usage: ./01_compress_easy PRESET < INFILE > OUTFILE
///
/// Example: ./01_compress_easy 6 < foo > foo.xz
//
// Author: Lasse Collin
//
// This file has been put into the public domain.
// You can do whatever you want with this file.
//
///////////////////////////////////////////////////////////////////////////////
#include <stdbool.h>
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <errno.h>
#include <lzma.h>
static void
show_usage_and_exit(const char *argv0)
{
fprintf(stderr, "Usage: %s PRESET < INFILE > OUTFILE\n"
"PRESET is a number 0-9 and can optionally be "
"followed by `e' to indicate extreme preset\n",
argv0);
exit(EXIT_FAILURE);
}
static uint32_t
get_preset(int argc, char **argv)
{
// One argument whose first char must be 0-9.
if (argc != 2 || argv[1][0] < '0' || argv[1][0] > '9')
show_usage_and_exit(argv[0]);
// Calculate the preste level 0-9.
uint32_t preset = argv[1][0] - '0';
// If there is a second char, it must be 'e'. It will set
// the LZMA_PRESET_EXTREME flag.
if (argv[1][1] != '\0') {
if (argv[1][1] != 'e' || argv[1][2] != '\0')
show_usage_and_exit(argv[0]);
preset |= LZMA_PRESET_EXTREME;
}
return preset;
}
static bool
init_encoder(lzma_stream *strm, uint32_t preset)
{
// Initialize the encoder using a preset. Set the integrity to check
// to CRC64, which is the default in the xz command line tool. If
// the .xz file needs to be decompressed with XZ Embedded, use
// LZMA_CHECK_CRC32 instead.
lzma_ret ret = lzma_easy_encoder(strm, preset, LZMA_CHECK_CRC64);
// Return successfully if the initialization went fine.
if (ret == LZMA_OK)
return true;
// Something went wrong. The possible errors are documented in
// lzma/container.h (src/liblzma/api/lzma/container.h in the source
// package or e.g. /usr/include/lzma/container.h depending on the
// install prefix).
const char *msg;
switch (ret) {
case LZMA_MEM_ERROR:
msg = "Memory allocation failed";
break;
case LZMA_OPTIONS_ERROR:
msg = "Specified preset is not supported";
break;
case LZMA_UNSUPPORTED_CHECK:
msg = "Specified integrity check is not supported";
break;
default:
// This is most likely LZMA_PROG_ERROR indicating a bug in
// this program or in liblzma. It is inconvenient to have a
// separate error message for errors that should be impossible
// to occur, but knowing the error code is important for
// debugging. That's why it is good to print the error code
// at least when there is no good error message to show.
msg = "Unknown error, possibly a bug";
break;
}
fprintf(stderr, "Error initializing the encoder: %s (error code %u)\n",
msg, ret);
return false;
}
static bool
compress(lzma_stream *strm, FILE *infile, FILE *outfile)
{
// This will be LZMA_RUN until the end of the input file is reached.
// This tells lzma_code() when there will be no more input.
lzma_action action = LZMA_RUN;
// Buffers to temporarily hold uncompressed input
// and compressed output.
uint8_t inbuf[BUFSIZ];
uint8_t outbuf[BUFSIZ];
// Initialize the input and output pointers. Initializing next_in
// and avail_in isn't really necessary when we are going to encode
// just one file since LZMA_STREAM_INIT takes care of initializing
// those already. But it doesn't hurt much and it will be needed
// if encoding more than one file like we will in 02_decompress.c.
//
// While we don't care about strm->total_in or strm->total_out in this
// example, it is worth noting that initializing the encoder will
// always reset total_in and total_out to zero. But the encoder
// initialization doesn't touch next_in, avail_in, next_out, or
// avail_out.
strm->next_in = NULL;
strm->avail_in = 0;
strm->next_out = outbuf;
strm->avail_out = sizeof(outbuf);
// Loop until the file has been successfully compressed or until
// an error occurs.
while (true) {
// Fill the input buffer if it is empty.
if (strm->avail_in == 0 && !feof(infile)) {
strm->next_in = inbuf;
strm->avail_in = fread(inbuf, 1, sizeof(inbuf),
infile);
if (ferror(infile)) {
fprintf(stderr, "Read error: %s\n",
strerror(errno));
return false;
}
// Once the end of the input file has been reached,
// we need to tell lzma_code() that no more input
// will be coming and that it should finish the
// encoding.
if (feof(infile))
action = LZMA_FINISH;
}
// Tell liblzma do the actual encoding.
//
// This reads up to strm->avail_in bytes of input starting
// from strm->next_in. avail_in will be decremented and
// next_in incremented by an equal amount to match the
// number of input bytes consumed.
//
// Up to strm->avail_out bytes of compressed output will be
// written starting from strm->next_out. avail_out and next_out
// will be incremented by an equal amount to match the number
// of output bytes written.
//
// The encoder has to do internal buffering, which means that
// it may take quite a bit of input before the same data is
// available in compressed form in the output buffer.
lzma_ret ret = lzma_code(strm, action);
// If the output buffer is full or if the compression finished
// successfully, write the data from the output bufffer to
// the output file.
if (strm->avail_out == 0 || ret == LZMA_STREAM_END) {
// When lzma_code() has returned LZMA_STREAM_END,
// the output buffer is likely to be only partially
// full. Calculate how much new data there is to
// be written to the output file.
size_t write_size = sizeof(outbuf) - strm->avail_out;
if (fwrite(outbuf, 1, write_size, outfile)
!= write_size) {
fprintf(stderr, "Write error: %s\n",
strerror(errno));
return false;
}
// Reset next_out and avail_out.
strm->next_out = outbuf;
strm->avail_out = sizeof(outbuf);
}
// Normally the return value of lzma_code() will be LZMA_OK
// until everything has been encoded.
if (ret != LZMA_OK) {
// Once everything has been encoded successfully, the
// return value of lzma_code() will be LZMA_STREAM_END.
//
// It is important to check for LZMA_STREAM_END. Do not
// assume that getting ret != LZMA_OK would mean that
// everything has gone well.
if (ret == LZMA_STREAM_END)
return true;
// It's not LZMA_OK nor LZMA_STREAM_END,
// so it must be an error code. See lzma/base.h
// (src/liblzma/api/lzma/base.h in the source package
// or e.g. /usr/include/lzma/base.h depending on the
// install prefix) for the list and documentation of
// possible values. Most values listen in lzma_ret
// enumeration aren't possible in this example.
const char *msg;
switch (ret) {
case LZMA_MEM_ERROR:
msg = "Memory allocation failed";
break;
case LZMA_DATA_ERROR:
// This error is returned if the compressed
// or uncompressed size get near 8 EiB
// (2^63 bytes) because that's where the .xz
// file format size limits currently are.
// That is, the possibility of this error
// is mostly theoretical unless you are doing
// something very unusual.
//
// Note that strm->total_in and strm->total_out
// have nothing to do with this error. Changing
// those variables won't increase or decrease
// the chance of getting this error.
msg = "File size limits exceeded";
break;
default:
// This is most likely LZMA_PROG_ERROR, but
// if this program is buggy (or liblzma has
// a bug), it may be e.g. LZMA_BUF_ERROR or
// LZMA_OPTIONS_ERROR too.
//
// It is inconvenient to have a separate
// error message for errors that should be
// impossible to occur, but knowing the error
// code is important for debugging. That's why
// it is good to print the error code at least
// when there is no good error message to show.
msg = "Unknown error, possibly a bug";
break;
}
fprintf(stderr, "Encoder error: %s (error code %u)\n",
msg, ret);
return false;
}
}
}
extern int
main(int argc, char **argv)
{
// Get the preset number from the command line.
uint32_t preset = get_preset(argc, argv);
// Initialize a lzma_stream structure. When it is allocated on stack,
// it is simplest to use LZMA_STREAM_INIT macro like below. When it
// is allocated on heap, using memset(strmptr, 0, sizeof(*strmptr))
// works (as long as NULL pointers are represented with zero bits
// as they are on practically all computers today).
lzma_stream strm = LZMA_STREAM_INIT;
// Initialize the encoder. If it succeeds, compress from
// stdin to stdout.
bool success = init_encoder(&strm, preset);
if (success)
success = compress(&strm, stdin, stdout);
// Free the memory allocated for the encoder. If we were encoding
// multiple files, this would only need to be done after the last
// file. See 02_decompress.c for handling of multiple files.
//
// It is OK to call lzma_end() multiple times or when it hasn't been
// actually used except initialized with LZMA_STREAM_INIT.
lzma_end(&strm);
// Close stdout to catch possible write errors that can occur
// when pending data is flushed from the stdio buffers.
if (fclose(stdout)) {
fprintf(stderr, "Write error: %s\n", strerror(errno));
success = false;
}
return success ? EXIT_SUCCESS : EXIT_FAILURE;
}

287
doc/examples/02_decompress.c
View File

@@ -1,287 +0,0 @@
///////////////////////////////////////////////////////////////////////////////
//
/// \file 02_decompress.c
/// \brief Decompress .xz files to stdout
///
/// Usage: ./02_decompress INPUT_FILES... > OUTFILE
///
/// Example: ./02_decompress foo.xz bar.xz > foobar
//
// Author: Lasse Collin
//
// This file has been put into the public domain.
// You can do whatever you want with this file.
//
///////////////////////////////////////////////////////////////////////////////
#include <stdbool.h>
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <errno.h>
#include <lzma.h>
static bool
init_decoder(lzma_stream *strm)
{
// Initialize a .xz decoder. The decoder supports a memory usage limit
// and a set of flags.
//
// The memory usage of the decompressor depends on the settings used
// to compress a .xz file. It can vary from less than a megabyte to
// a few gigabytes, but in practice (at least for now) it rarely
// exceeds 65 MiB because that's how much memory is required to
// decompress files created with "xz -9". Settings requiring more
// memory take extra effort to use and don't (at least for now)
// provide significantly better compression in most cases.
//
// Memory usage limit is useful if it is important that the
// decompressor won't consume gigabytes of memory. The need
// for limiting depends on the application. In this example,
// no memory usage limiting is used. This is done by setting
// the limit to UINT64_MAX.
//
// The .xz format allows concatenating compressed files as is:
//
// echo foo | xz > foobar.xz
// echo bar | xz >> foobar.xz
//
// When decompressing normal standalone .xz files, LZMA_CONCATENATED
// should always be used to support decompression of concatenated
// .xz files. If LZMA_CONCATENATED isn't used, the decoder will stop
// after the first .xz stream. This can be useful when .xz data has
// been embedded inside another file format.
//
// Flags other than LZMA_CONCATENATED are supported too, and can
// be combined with bitwise-or. See lzma/container.h
// (src/liblzma/api/lzma/container.h in the source package or e.g.
// /usr/include/lzma/container.h depending on the install prefix)
// for details.
lzma_ret ret = lzma_stream_decoder(
strm, UINT64_MAX, LZMA_CONCATENATED);
// Return successfully if the initialization went fine.
if (ret == LZMA_OK)
return true;
// Something went wrong. The possible errors are documented in
// lzma/container.h (src/liblzma/api/lzma/container.h in the source
// package or e.g. /usr/include/lzma/container.h depending on the
// install prefix).
//
// Note that LZMA_MEMLIMIT_ERROR is never possible here. If you
// specify a very tiny limit, the error will be delayed until
// the first headers have been parsed by a call to lzma_code().
const char *msg;
switch (ret) {
case LZMA_MEM_ERROR:
msg = "Memory allocation failed";
break;
case LZMA_OPTIONS_ERROR:
msg = "Unsupported decompressor flags";
break;
default:
// This is most likely LZMA_PROG_ERROR indicating a bug in
// this program or in liblzma. It is inconvenient to have a
// separate error message for errors that should be impossible
// to occur, but knowing the error code is important for
// debugging. That's why it is good to print the error code
// at least when there is no good error message to show.
msg = "Unknown error, possibly a bug";
break;
}
fprintf(stderr, "Error initializing the decoder: %s (error code %u)\n",
msg, ret);
return false;
}
static bool
decompress(lzma_stream *strm, const char *inname, FILE *infile, FILE *outfile)
{
// When LZMA_CONCATENATED flag was used when initializing the decoder,
// we need to tell lzma_code() when there will be no more input.
// This is done by setting action to LZMA_FINISH instead of LZMA_RUN
// in the same way as it is done when encoding.
//
// When LZMA_CONCATENATED isn't used, there is no need to use
// LZMA_FINISH to tell when all the input has been read, but it
// is still OK to use it if you want. When LZMA_CONCATENATED isn't
// used, the decoder will stop after the first .xz stream. In that
// case some unused data may be left in strm->next_in.
lzma_action action = LZMA_RUN;
uint8_t inbuf[BUFSIZ];
uint8_t outbuf[BUFSIZ];
strm->next_in = NULL;
strm->avail_in = 0;
strm->next_out = outbuf;
strm->avail_out = sizeof(outbuf);
while (true) {
if (strm->avail_in == 0 && !feof(infile)) {
strm->next_in = inbuf;
strm->avail_in = fread(inbuf, 1, sizeof(inbuf),
infile);
if (ferror(infile)) {
fprintf(stderr, "%s: Read error: %s\n",
inname, strerror(errno));
return false;
}
// Once the end of the input file has been reached,
// we need to tell lzma_code() that no more input
// will be coming. As said before, this isn't required
// if the LZMA_CONCATENATED flag isn't used when
// initializing the decoder.
if (feof(infile))
action = LZMA_FINISH;
}
lzma_ret ret = lzma_code(strm, action);
if (strm->avail_out == 0 || ret == LZMA_STREAM_END) {
size_t write_size = sizeof(outbuf) - strm->avail_out;
if (fwrite(outbuf, 1, write_size, outfile)
!= write_size) {
fprintf(stderr, "Write error: %s\n",
strerror(errno));
return false;
}
strm->next_out = outbuf;
strm->avail_out = sizeof(outbuf);
}
if (ret != LZMA_OK) {
// Once everything has been decoded successfully, the
// return value of lzma_code() will be LZMA_STREAM_END.
//
// It is important to check for LZMA_STREAM_END. Do not
// assume that getting ret != LZMA_OK would mean that
// everything has gone well or that when you aren't
// getting more output it must have successfully
// decoded everything.
if (ret == LZMA_STREAM_END)
return true;
// It's not LZMA_OK nor LZMA_STREAM_END,
// so it must be an error code. See lzma/base.h
// (src/liblzma/api/lzma/base.h in the source package
// or e.g. /usr/include/lzma/base.h depending on the
// install prefix) for the list and documentation of
// possible values. Many values listen in lzma_ret
// enumeration aren't possible in this example, but
// can be made possible by enabling memory usage limit
// or adding flags to the decoder initialization.
const char *msg;
switch (ret) {
case LZMA_MEM_ERROR:
msg = "Memory allocation failed";
break;
case LZMA_FORMAT_ERROR:
// .xz magic bytes weren't found.
msg = "The input is not in the .xz format";
break;
case LZMA_OPTIONS_ERROR:
// For example, the headers specify a filter
// that isn't supported by this liblzma
// version (or it hasn't been enabled when
// building liblzma, but no-one sane does
// that unless building liblzma for an
// embedded system). Upgrading to a newer
// liblzma might help.
//
// Note that it is unlikely that the file has
// accidentally became corrupt if you get this
// error. The integrity of the .xz headers is
// always verified with a CRC32, so
// unintentionally corrupt files can be
// distinguished from unsupported files.
msg = "Unsupported compression options";
break;
case LZMA_DATA_ERROR:
msg = "Compressed file is corrupt";
break;
case LZMA_BUF_ERROR:
// Typically this error means that a valid
// file has got truncated, but it might also
// be a damaged part in the file that makes
// the decoder think the file is truncated.
// If you prefer, you can use the same error
// message for this as for LZMA_DATA_ERROR.
msg = "Compressed file is truncated or "
"otherwise corrupt";
break;
default:
// This is most likely LZMA_PROG_ERROR.
msg = "Unknown error, possibly a bug";
break;
}
fprintf(stderr, "%s: Decoder error: "
"%s (error code %u)\n",
inname, msg, ret);
return false;
}
}
}
extern int
main(int argc, char **argv)
{
if (argc <= 1) {
fprintf(stderr, "Usage: %s FILES...\n", argv[0]);
return EXIT_FAILURE;
}
lzma_stream strm = LZMA_STREAM_INIT;
bool success = true;
// Try to decompress all files.
for (int i = 1; i < argc; ++i) {
if (!init_decoder(&strm)) {
// Decoder initialization failed. There's no point
// to retry it so we need to exit.
success = false;
break;
}
FILE *infile = fopen(argv[i], "rb");
if (infile == NULL) {
fprintf(stderr, "%s: Error opening the "
"input file: %s\n",
argv[i], strerror(errno));
success = false;
} else {
success &= decompress(&strm, argv[i], infile, stdout);
fclose(infile);
}
}
// Free the memory allocated for the decoder. This only needs to be
// done after the last file.
lzma_end(&strm);
if (fclose(stdout)) {
fprintf(stderr, "Write error: %s\n", strerror(errno));
success = false;
}
return success ? EXIT_SUCCESS : EXIT_FAILURE;
}

193
doc/examples/03_compress_custom.c
View File

@@ -1,193 +0,0 @@
///////////////////////////////////////////////////////////////////////////////
//
/// \file 03_compress_custom.c
/// \brief Compress in multi-call mode using x86 BCJ and LZMA2
///
/// Usage: ./03_compress_custom < INFILE > OUTFILE
///
/// Example: ./03_compress_custom < foo > foo.xz
//
// Author: Lasse Collin
//
// This file has been put into the public domain.
// You can do whatever you want with this file.
//
///////////////////////////////////////////////////////////////////////////////
#include <stdbool.h>
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <errno.h>
#include <lzma.h>
static bool
init_encoder(lzma_stream *strm)
{
// Use the default preset (6) for LZMA2.
//
// The lzma_options_lzma structure and the lzma_lzma_preset() function
// are declared in lzma/lzma12.h (src/liblzma/api/lzma/lzma12.h in the
// source package or e.g. /usr/include/lzma/lzma12.h depending on
// the install prefix).
lzma_options_lzma opt_lzma2;
if (lzma_lzma_preset(&opt_lzma2, LZMA_PRESET_DEFAULT)) {
// It should never fail because the default preset
// (and presets 0-9 optionally with LZMA_PRESET_EXTREME)
// are supported by all stable liblzma versions.
//
// (The encoder initialization later in this function may
// still fail due to unsupported preset *if* the features
// required by the preset have been disabled at build time,
// but no-one does such things except on embedded systems.)
fprintf(stderr, "Unsupported preset, possibly a bug\n");
return false;
}
// Now we could customize the LZMA2 options if we wanted. For example,
// we could set the the dictionary size (opt_lzma2.dict_size) to
// something else than the default (8 MiB) of the default preset.
// See lzma/lzma12.h for details of all LZMA2 options.
//
// The x86 BCJ filter will try to modify the x86 instruction stream so
// that LZMA2 can compress it better. The x86 BCJ filter doesn't need
// any options so it will be set to NULL below.
//
// Construct the filter chain. The uncompressed data goes first to
// the first filter in the array, in this case the x86 BCJ filter.
// The array is always terminated by setting .id = LZMA_VLI_UNKNOWN.
//
// See lzma/filter.h for more information about the lzma_filter
// structure.
lzma_filter filters[] = {
{ .id = LZMA_FILTER_X86, .options = NULL },
{ .id = LZMA_FILTER_LZMA2, .options = &opt_lzma2 },
{ .id = LZMA_VLI_UNKNOWN, .options = NULL },
};
// Initialize the encoder using the custom filter chain.
lzma_ret ret = lzma_stream_encoder(strm, filters, LZMA_CHECK_CRC64);
if (ret == LZMA_OK)
return true;
const char *msg;
switch (ret) {
case LZMA_MEM_ERROR:
msg = "Memory allocation failed";
break;
case LZMA_OPTIONS_ERROR:
// We are no longer using a plain preset so this error
// message has been edited accordingly compared to
// 01_compress_easy.c.
msg = "Specified filter chain is not supported";
break;
case LZMA_UNSUPPORTED_CHECK:
msg = "Specified integrity check is not supported";
break;
default:
msg = "Unknown error, possibly a bug";
break;
}
fprintf(stderr, "Error initializing the encoder: %s (error code %u)\n",
msg, ret);
return false;
}
// This function is identical to the one in 01_compress_easy.c.
static bool
compress(lzma_stream *strm, FILE *infile, FILE *outfile)
{
lzma_action action = LZMA_RUN;
uint8_t inbuf[BUFSIZ];
uint8_t outbuf[BUFSIZ];
strm->next_in = NULL;
strm->avail_in = 0;
strm->next_out = outbuf;
strm->avail_out = sizeof(outbuf);
while (true) {
if (strm->avail_in == 0 && !feof(infile)) {
strm->next_in = inbuf;
strm->avail_in = fread(inbuf, 1, sizeof(inbuf),
infile);
if (ferror(infile)) {
fprintf(stderr, "Read error: %s\n",
strerror(errno));
return false;
}
if (feof(infile))
action = LZMA_FINISH;
}
lzma_ret ret = lzma_code(strm, action);
if (strm->avail_out == 0 || ret == LZMA_STREAM_END) {
size_t write_size = sizeof(outbuf) - strm->avail_out;
if (fwrite(outbuf, 1, write_size, outfile)
!= write_size) {
fprintf(stderr, "Write error: %s\n",
strerror(errno));
return false;
}
strm->next_out = outbuf;
strm->avail_out = sizeof(outbuf);
}
if (ret != LZMA_OK) {
if (ret == LZMA_STREAM_END)
return true;
const char *msg;
switch (ret) {
case LZMA_MEM_ERROR:
msg = "Memory allocation failed";
break;
case LZMA_DATA_ERROR:
msg = "File size limits exceeded";
break;
default:
msg = "Unknown error, possibly a bug";
break;
}
fprintf(stderr, "Encoder error: %s (error code %u)\n",
msg, ret);
return false;
}
}
}
extern int
main(void)
{
lzma_stream strm = LZMA_STREAM_INIT;
bool success = init_encoder(&strm);
if (success)
success = compress(&strm, stdin, stdout);
lzma_end(&strm);
if (fclose(stdout)) {
fprintf(stderr, "Write error: %s\n", strerror(errno));
success = false;
}
return success ? EXIT_SUCCESS : EXIT_FAILURE;
}

206
doc/examples/04_compress_easy_mt.c
View File

@@ -1,206 +0,0 @@
///////////////////////////////////////////////////////////////////////////////
//
/// \file 04_compress_easy_mt.c
/// \brief Compress in multi-call mode using LZMA2 in multi-threaded mode
///
/// Usage: ./04_compress_easy_mt < INFILE > OUTFILE
///
/// Example: ./04_compress_easy_mt < foo > foo.xz
//
// Author: Lasse Collin
//
// This file has been put into the public domain.
// You can do whatever you want with this file.
//
///////////////////////////////////////////////////////////////////////////////
#include <stdbool.h>
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <errno.h>
#include <lzma.h>
static bool
init_encoder(lzma_stream *strm)
{
// The threaded encoder takes the options as pointer to
// a lzma_mt structure.
lzma_mt mt = {
// No flags are needed.
.flags = 0,
// Let liblzma determine a sane block size.
.block_size = 0,
// Use no timeout for lzma_code() calls by setting timeout
// to zero. That is, sometimes lzma_code() might block for
// a long time (from several seconds to even minutes).
// If this is not OK, for example due to progress indicator
// needing updates, specify a timeout in milliseconds here.
// See the documentation of lzma_mt in lzma/container.h for
// information how to choose a reasonable timeout.
.timeout = 0,
// Use the default preset (6) for LZMA2.
// To use a preset, filters must be set to NULL.
.preset = LZMA_PRESET_DEFAULT,
.filters = NULL,
// Use CRC64 for integrity checking. See also
// 01_compress_easy.c about choosing the integrity check.
.check = LZMA_CHECK_CRC64,
};
// Detect how many threads the CPU supports.
mt.threads = lzma_cputhreads();
// If the number of CPU cores/threads cannot be detected,
// use one thread. Note that this isn't the same as the normal
// single-threaded mode as this will still split the data into
// blocks and use more RAM than the normal single-threaded mode.
// You may want to consider using lzma_easy_encoder() or
// lzma_stream_encoder() instead of lzma_stream_encoder_mt() if
// lzma_cputhreads() returns 0 or 1.
if (mt.threads == 0)
mt.threads = 1;
// If the number of CPU cores/threads exceeds threads_max,
// limit the number of threads to keep memory usage lower.
// The number 8 is arbitrarily chosen and may be too low or
// high depending on the compression preset and the computer
// being used.
//
// FIXME: A better way could be to check the amount of RAM
// (or available RAM) and use lzma_stream_encoder_mt_memusage()
// to determine if the number of threads should be reduced.
const uint32_t threads_max = 8;
if (mt.threads > threads_max)
mt.threads = threads_max;
// Initialize the threaded encoder.
lzma_ret ret = lzma_stream_encoder_mt(strm, &mt);
if (ret == LZMA_OK)
return true;
const char *msg;
switch (ret) {
case LZMA_MEM_ERROR:
msg = "Memory allocation failed";
break;
case LZMA_OPTIONS_ERROR:
// We are no longer using a plain preset so this error
// message has been edited accordingly compared to
// 01_compress_easy.c.
msg = "Specified filter chain is not supported";
break;
case LZMA_UNSUPPORTED_CHECK:
msg = "Specified integrity check is not supported";
break;
default:
msg = "Unknown error, possibly a bug";
break;
}
fprintf(stderr, "Error initializing the encoder: %s (error code %u)\n",
msg, ret);
return false;
}
// This function is identical to the one in 01_compress_easy.c.
static bool
compress(lzma_stream *strm, FILE *infile, FILE *outfile)
{
lzma_action action = LZMA_RUN;
uint8_t inbuf[BUFSIZ];
uint8_t outbuf[BUFSIZ];
strm->next_in = NULL;
strm->avail_in = 0;
strm->next_out = outbuf;
strm->avail_out = sizeof(outbuf);
while (true) {
if (strm->avail_in == 0 && !feof(infile)) {
strm->next_in = inbuf;
strm->avail_in = fread(inbuf, 1, sizeof(inbuf),
infile);
if (ferror(infile)) {
fprintf(stderr, "Read error: %s\n",
strerror(errno));
return false;
}
if (feof(infile))
action = LZMA_FINISH;
}
lzma_ret ret = lzma_code(strm, action);
if (strm->avail_out == 0 || ret == LZMA_STREAM_END) {
size_t write_size = sizeof(outbuf) - strm->avail_out;
if (fwrite(outbuf, 1, write_size, outfile)
!= write_size) {
fprintf(stderr, "Write error: %s\n",
strerror(errno));
return false;
}
strm->next_out = outbuf;
strm->avail_out = sizeof(outbuf);
}
if (ret != LZMA_OK) {
if (ret == LZMA_STREAM_END)
return true;
const char *msg;
switch (ret) {
case LZMA_MEM_ERROR:
msg = "Memory allocation failed";
break;
case LZMA_DATA_ERROR:
msg = "File size limits exceeded";
break;
default:
msg = "Unknown error, possibly a bug";
break;
}
fprintf(stderr, "Encoder error: %s (error code %u)\n",
msg, ret);
return false;
}
}
}
extern int
main(void)
{
lzma_stream strm = LZMA_STREAM_INIT;
bool success = init_encoder(&strm);
if (success)
success = compress(&strm, stdin, stdout);
lzma_end(&strm);
if (fclose(stdout)) {
fprintf(stderr, "Write error: %s\n", strerror(errno));
success = false;
}
return success ? EXIT_SUCCESS : EXIT_FAILURE;
}

24
doc/examples/Makefile
View File

@@ -1,24 +0,0 @@
#
# Author: Lasse Collin
#
# This file has been put into the public domain.
# You can do whatever you want with this file.
#
CC = c99
CFLAGS = -g
LDFLAGS = -llzma
PROGS = \
01_compress_easy \
02_decompress \
03_compress_custom \
04_compress_easy_mt
all: $(PROGS)
.c:
$(CC) $(CFLAGS) -o $@ $< $(LDFLAGS)
clean:
-rm -f $(PROGS)

0
doc/examples_old/xz_pipe_comp.c → doc/examples/xz_pipe_comp.c
View File

10
doc/examples_old/xz_pipe_decomp.c → doc/examples/xz_pipe_decomp.c
View File

@@ -1,7 +1,7 @@
/*
* xz_pipe_decomp.c
* A simple example of pipe-only xz decompressor implementation.
* version: 2012-06-14 - by Daniel Mealha Cabrita
* version: 2010-07-12 - by Daniel Mealha Cabrita
* Not copyrighted -- provided to the public domain.
*
* Compiling:
@@ -101,14 +101,6 @@ int xz_decompress (FILE *in_file, FILE *out_file)
} while (strm.avail_out == 0);
}
/* Bug fix (2012-06-14): If no errors were detected, check
that the last lzma_code() call returned LZMA_STREAM_END.
If not, the file is probably truncated. */
if ((ret == RET_OK) && (ret_xz != LZMA_STREAM_END)) {
fprintf (stderr, "Input truncated or corrupt\n");
ret = RET_ERROR_DECOMPRESSION;
}
lzma_end (&strm);
return ret;
}

28
doc/faq.txt
View File

@@ -26,7 +26,7 @@ Q: There are many LZMA related projects. How does XZ Utils relate to them?
A: 7-Zip and LZMA SDK are the original projects. LZMA SDK is roughly
a subset of the 7-Zip source tree.
p7zip is 7-Zip's command-line tools ported to POSIX-like systems.
p7zip is 7-Zip's command line tools ported to POSIX-like systems.
LZMA Utils provide a gzip-like lzma tool for POSIX-like systems.
LZMA Utils are based on LZMA SDK. XZ Utils are the successor to
@@ -42,7 +42,7 @@ Q: Why is liblzma named liblzma if its primary file format is .xz?
A: When the designing of the .xz format began, the idea was to replace
the .lzma format and use the same .lzma suffix. It would have been
quite OK to reuse the suffix when there were very few .lzma files
around. However, the old .lzma format became popular before the
around. However, the old .lzma format become popular before the
new format was finished. The new format was renamed to .xz but the
name of liblzma wasn't changed.
@@ -73,7 +73,7 @@ A: For now, no. Since XZ Utils supports the .lzma format, it's usually
Technically, there is a way to make the conversion relatively fast
(roughly twice the time that normal decompression takes). Writing
such a tool would take quite a bit of time though, and would probably
such a tool would take quite a bit time though, and would probably
be useful to only a few people. If you really want such a conversion
tool, contact Lasse Collin and offer some money.
@@ -84,7 +84,7 @@ Q: I have installed xz, but my tar doesn't recognize .tar.xz files.
A: xz -dc foo.tar.xz | tar xf -
Q: Can I recover parts of a broken .xz file (e.g. a corrupted CD-R)?
Q: Can I recover parts of a broken .xz file (e.g. corrupted CD-R)?
A: It may be possible if the file consists of multiple blocks, which
typically is not the case if the file was created in single-threaded
@@ -94,7 +94,7 @@ A: It may be possible if the file consists of multiple blocks, which
Q: Is (some part of) XZ Utils patented?
A: Lasse Collin is not aware of any patents that could affect XZ Utils.
However, due to the nature of software patents, it's not possible to
However, due to nature of software patents, it's not possible to
guarantee that XZ Utils isn't affected by any third party patent(s).
@@ -105,8 +105,8 @@ A: The .xz format is documented in xz-file-format.txt. It is a container
filters.
Documenting LZMA and LZMA2 is planned, but for now, there is no other
documentation than the source code. Before you begin, you should know
the basics of LZ77 and range-coding algorithms. LZMA is based on LZ77,
documentation that the source code. Before you begin, you should know
the basics of LZ77 and range coding algorithms. LZMA is based on LZ77,
but LZMA is a lot more complex. Range coding is used to compress
the final bitstream like Huffman coding is used in Deflate.
@@ -148,7 +148,7 @@ A: See the documentation in XZ Embedded. In short, something like
xz --check=crc32 --powerpc --lzma2=preset=6e,dict=64KiB
Adjust the dictionary size to get a good compromise between
Adjust dictionary size to get a good compromise between
compression ratio and decompressor memory usage. Note that
in single-call decompression mode of XZ Embedded, a big
dictionary doesn't increase memory usage.
@@ -184,10 +184,10 @@ A: It is planned and has been taken into account when designing
The third method is pigz-style threading (I use that name, because
pigz <http://www.zlib.net/pigz/> uses that method). It doesn't
affect compression ratio significantly and scales to many cores.
The memory usage scales linearly when threads are added. This isn't
significant with pigz, because Deflate uses only a 32 KiB dictionary,
The memory usage scales linearly when threads are added. It isn't
significant with pigz, because Deflate uses only 32 KiB dictionary,
but with LZMA2 the memory usage will increase dramatically just like
with the independent-blocks method. There is also a constant
with the independent blocks method. There is also a constant
computational overhead, which may make pigz-method a bit dull on
dual-core compared to the parallel match finder method, but with more
cores the overhead is not a big deal anymore.
@@ -197,7 +197,7 @@ A: It is planned and has been taken into account when designing
can cut the memory usage by 50 %.
It is possible that the single-threaded method will be modified to
create files identical to the pigz-style method. We'll see once
create files indentical to the pigz-style method. We'll see once
pigz-style threading has been implemented in liblzma.
@@ -206,7 +206,7 @@ Q: How do I build a program that needs liblzmadec (lzmadec.h)?
A: liblzmadec is part of LZMA Utils. XZ Utils has liblzma, but no
liblzmadec. The code using liblzmadec should be ported to use
liblzma instead. If you cannot or don't want to do that, download
LZMA Utils from <https://tukaani.org/lzma/>.
LZMA Utils from <http://tukaani.org/lzma/>.
Q: The default build of liblzma is too big. How can I make it smaller?
@@ -220,5 +220,5 @@ A: Give --enable-small to the configure script. Use also appropriate
If the result is still too big, take a look at XZ Embedded. It is
a separate project, which provides a limited but significantly
smaller XZ decoder implementation than XZ Utils. You can find it
at <https://tukaani.org/xz/embedded.html>.
at <http://tukaani.org/xz/embedded.html>.

75
doc/history.txt
View File

@@ -4,12 +4,12 @@ History of LZMA Utils and XZ Utils
Tukaani distribution
In 2005, there was a small group working on the Tukaani distribution,
which was a Slackware fork. One of the project's goals was to fit the
distro on a single 700 MiB ISO-9660 image. Using LZMA instead of gzip
helped a lot. Roughly speaking, one could fit data that took 1000 MiB
in gzipped form into 700 MiB with LZMA. Naturally, the compression
ratio varied across packages, but this was what we got on average.
In 2005, there was a small group working on Tukaani distribution, which
was a Slackware fork. One of the project goals was to fit the distro on
a single 700 MiB ISO-9660 image. Using LZMA instead of gzip helped a
lot. Roughly speaking, one could fit data that took 1000 MiB in gzipped
form into 700 MiB with LZMA. Naturally compression ratio varied across
packages, but this was what we got on average.
Slackware packages have traditionally had .tgz as the filename suffix,
which is an abbreviation of .tar.gz. A logical naming for LZMA
@@ -30,13 +30,13 @@ Tukaani distribution
First steps of LZMA Utils
The first version of LZMA Utils (4.22.0) included a shell script called
lzmash. It was a wrapper that had a gzip-like command-line interface. It
lzmash. It was wrapper that had gzip-like command line interface. It
used the LZMA_Alone tool from LZMA SDK to do all the real work. zgrep,
zdiff, and related scripts from gzip were adapted to work with LZMA and
zdiff, and related scripts from gzip were adapted work with LZMA and
were part of the first LZMA Utils release too.
LZMA Utils 4.22.0 included also lzmadec, which was a small (less than
10 KiB) decoder-only command-line tool. It was written on top of the
10 KiB) decoder-only command line tool. It was written on top of the
decoder-only C code found from the LZMA SDK. lzmadec was convenient in
situations where LZMA_Alone (a few hundred KiB) would be too big.
@@ -48,34 +48,33 @@ Second generation
The lzmash script was an ugly and not very secure hack. The last
version of LZMA Utils to use lzmash was 4.27.1.
LZMA Utils 4.32.0beta1 introduced a new lzma command-line tool written
LZMA Utils 4.32.0beta1 introduced a new lzma command line tool written
by Ville Koskinen. It was written in C++, and used the encoder and
decoder from C++ LZMA SDK with some little modifications. This tool
replaced both the lzmash script and the LZMA_Alone command-line tool
in LZMA Utils.
decoder from C++ LZMA SDK with little modifications. This tool replaced
both the lzmash script and the LZMA_Alone command line tool in LZMA
Utils.
Introducing this new tool caused some temporary incompatibilities,
because the LZMA_Alone executable was simply named lzma like the new
command-line tool, but they had a completely different command-line
because LZMA_Alone executable was simply named lzma like the new
command line tool, but they had completely different command line
interface. The file format was still the same.
Lasse wrote liblzmadec, which was a small decoder-only library based
on the C code found from LZMA SDK. liblzmadec had an API similar to
zlib, although there were some significant differences, which made it
on the C code found from LZMA SDK. liblzmadec had API similar to zlib,
although there were some significant differences, which made it
non-trivial to use it in some applications designed for zlib and
libbzip2.
The lzmadec command-line tool was converted to use liblzmadec.
The lzmadec command line tool was converted to use liblzmadec.
Alexandre Sauvé helped converting the build system to use GNU
Autotools. This made it easier to test for certain less portable
features needed by the new command-line tool.
Alexandre Sauvé helped converting build system to use GNU Autotools.
This made is easier to test for certain less portable features needed
by the new command line tool.
Since the new command-line tool never got completely finished (for
example, it didn't support the LZMA_OPT environment variable), the
intent was to not call 4.32.x stable. Similarly, liblzmadec wasn't
polished, but appeared to work well enough, so some people started
using it too.
Since the new command line tool never got completely finished (for
example, it didn't support LZMA_OPT environment variable), the intent
was to not call 4.32.x stable. Similarly, liblzmadec wasn't polished,
but appeared to work well enough, so some people started using it too.
Because the development of the third generation of LZMA Utils was
delayed considerably (3-4 years), the 4.32.x branch had to be kept
@@ -86,16 +85,16 @@ Second generation
File format problems
The file format used by LZMA_Alone was primitive. It was designed with
embedded systems in mind, and thus provided only a minimal set of
features. The two biggest problems for non-embedded use were the lack
of magic bytes and an integrity check.
The file format used by LZMA_Alone was primitive. It was designed for
embedded systems in mind, and thus provided only minimal set of
features. The two biggest problems for non-embedded use were lack of
magic bytes and integrity check.
Igor and Lasse started developing a new file format with some help
from Ville Koskinen. Also Mark Adler, Mikko Pouru, H. Peter Anvin,
and Lars Wirzenius helped with some minor things at some point of the
development. Designing the new format took quite a long time (actually,
too long a time would be a more appropriate expression). It was mostly
too long time would be more appropriate expression). It was mostly
because Lasse was quite slow at getting things done due to personal
reasons.
@@ -103,7 +102,7 @@ File format problems
that was already used by the old file format. Switching to the new
format wouldn't have caused much trouble when the old format wasn't
used by many people. But since the development of the new format took
such a long time, the old format got quite popular, and it was decided
so long time, the old format got quite popular, and it was decided
that the new file format must use a different suffix.
It was decided to use .xz as the suffix of the new file format. The
@@ -126,13 +125,13 @@ Transition to XZ Utils
The early versions of XZ Utils were called LZMA Utils. The first
releases were 4.42.0alphas. They dropped the rest of the C++ LZMA SDK.
The code was still directly based on LZMA SDK but ported to C and
converted from a callback API to a stateful API. Later, Igor Pavlov
made a C version of the LZMA encoder too; these ports from C++ to C
were independent in LZMA SDK and LZMA Utils.
converted from callback API to stateful API. Later, Igor Pavlov made
C version of the LZMA encoder too; these ports from C++ to C were
independent in LZMA SDK and LZMA Utils.
The core of the new LZMA Utils was liblzma, a compression library with
a zlib-like API. liblzma supported both the old and new file format.
The gzip-like lzma command-line tool was rewritten to use liblzma.
zlib-like API. liblzma supported both the old and new file format. The
gzip-like lzma command line tool was rewritten to use liblzma.
The new LZMA Utils code base was renamed to XZ Utils when the name
of the new file format had been decided. The liblzma compression
@@ -140,7 +139,7 @@ Transition to XZ Utils
caused unnecessary breakage in applications already using the early
liblzma snapshots.
The xz command-line tool can emulate the gzip-like lzma tool by
The xz command line tool can emulate the gzip-like lzma tool by
creating appropriate symlinks (e.g. lzma -> xz). Thus, practically
all scripts using the lzma tool from LZMA Utils will work as is with
XZ Utils (and will keep using the old .lzma format). Still, the .lzma

3
dos/Makefile
View File

@@ -16,7 +16,7 @@ CC = gcc
STRIP = strip
CPPFLAGS =
CFLAGS = -g -Wall -Wextra -Wfatal-errors -march=i386 -mtune=i686 -O2
LDFLAGS = -lemu
LDFLAGS =
# NOTE: -fgnu89-inline is needed on DJGPP 2.04 beta and GCC >= 4.3.0
# because time.h uses GNU-style "extern inline".
@@ -113,7 +113,6 @@ SRCS_C = \
../src/xz/list.c \
../src/xz/main.c \
../src/xz/message.c \
../src/xz/mytime.c \
../src/xz/options.c \
../src/xz/signals.c \
../src/xz/suffix.c \

13
dos/INSTALL.txt → dos/README
View File

@@ -1,6 +1,6 @@
Building XZ Utils for DOS
=========================
XZ Utils on DOS
===============
Introduction
@@ -77,3 +77,12 @@ Building
are not built. Having e.g. xzdec.exe doesn't save much space compared
to xz.exe, because the DJGPP runtime makes the .exe quite big anyway.
Bugs
xz doesn't necessarily work in Dosbox. It should work in DOSEMU.
Pressing Ctrl-c or Ctrl-Break won't remove the incomplete target file
when running under Windows XP Command Prompt (something goes wrong
with SIGINT handling). It works correctly under Windows 95/98/98SE/ME.

123
dos/README.txt
View File

@@ -1,123 +0,0 @@
XZ Utils on DOS
===============
DOS-specific filename handling
xz detects at runtime if long filename (LFN) support is
available and will use it by default. It can be disabled by
setting an environment variable:
set lfn=n
When xz is in LFN mode, it behaves pretty much the same as it
does on other operating systems. Examples:
xz foo.tar -> foo.tar.xz
xz -d foo.tar.xz -> foo.tar
xz -F lzma foo.tar -> foo.tar.lzma
xz -d foo.tar.lzma -> foo.tar
When LFN support isn't available or it is disabled with LFN=n
environment setting, xz works in short filename (SFN) mode. This
affects filename suffix handling when compressing.
When compressing to the .xz format in SFN mode:
- Files without an extension get .xz just like on LFN systems.
- *.tar files become *.txz (shorthand for *.tar.xz). *.txz
is recognized by xz on all supported operating systems.
(Try to avoid confusing this with gzipped .txt files.)
- Files with 1-3 character extension have their extension modified
so that the last character is a dash ("-"). If the extension
is already three characters, the last character is lost. The
resulting *.?- or *.??- filename is recognized in LFN mode, but
it isn't recognized by xz on other operating systems.
Examples:
xz foo -> foo.xz | xz -d foo.xz -> foo
xz foo.tar -> foo.txz | xz -d foo.txz -> foo.tar
xz foo.c -> foo.c- | xz -d foo.c- -> foo.c
xz read.me -> read.me- | xz -d read.me- -> read.me
xz foo.txt -> foo.tx- | xz -d foo.tx- -> foo.tx !
Note that in the last example above, the third character of the
filename extension is lost.
When compressing to the legacy .lzma format in SFN mode:
- *.tar files become *.tlz (shorthand for *.tar.lzma). *.tlz
is recognized by xz on all supported operating systems.
- Other files become *.lzm. The original filename extension
is lost. *.lzm is recognized also in LFN mode, but it is not
recognized by xz on other operating systems.
Examples:
xz -F lzma foo -> foo.lzm | xz -d foo.lzm -> foo
xz -F lzma foo.tar -> foo.tlz | xz -d foo.tlz -> foo.tar
xz -F lzma foo.c -> foo.lzm | xz -d foo.lzm -> foo !
xz -F lzma read.me -> read.lzm | xz -d read.lzm -> read !
xz -F lzma foo.txt -> foo.lzm | xz -d foo.lzm -> foo !
When compressing with a custom suffix (-S .SUF, --suffix=.SUF) to
any file format:
- If the suffix begins with a dot, the filename extension is
replaced with the new suffix. The original extension is lost.
- If the suffix doesn't begin with a dot and the filename has no
extension and the filename given on the command line doesn't
have a dot at the end, the custom suffix is appended just like
on LFN systems.
- If the suffix doesn't begin with a dot and the filename has
an extension (or an extension-less filename is given with a dot
at the end), the last 1-3 characters of the filename extension
may get overwritten to fit the given custom suffix.
Examples:
xz -S x foo -> foox | xz -dS x foox -> foo
xz -S x foo. -> foo.x | xz -dS x foo.x -> foo
xz -S .x foo -> foo.x | xz -dS .x foo.x -> foo
xz -S .x foo. -> foo.x | xz -dS .x foo.x -> foo
xz -S x.y foo -> foox.y | xz -dS x.y foox.y -> foo
xz -S .a foo.c -> foo.a | xz -dS .a foo.a -> foo !
xz -S a foo.c -> foo.ca | xz -dS a foo.ca -> foo.c
xz -S ab foo.c -> foo.cab | xz -dS ab foo.cab -> foo.c
xz -S ab read.me -> read.mab | xz -dS ab read.mab -> read.m !
xz -S ab foo.txt -> foo.tab | xz -dS ab foo.tab -> foo.t !
xz -S abc foo.txt -> foo.abc | xz -dS abc foo.abc -> foo !
When decompressing, the suffix handling in SFN mode is the same as
in LFN mode. The DOS-specific filenames *.lzm, *.?-, and *.??- are
recognized also in LFN mode.
xz handles certain uncommon situations safely:
- If the generated output filename refers to the same file as
the input file, xz detects this and refuses to compress or
decompress the input file even if --force is used. This can
happen when giving an overlong filename in SFN mode. E.g.
"xz -S x foo.texinfo" would try to write to foo.tex which on
SFN system is the same file as foo.texinfo.
- If the generated output filename is a special file like "con"
or "prn", xz detects this and refuses to compress or decompress
the input file even if --force is used.
Bugs
xz doesn't necessarily work in Dosbox. It should work in DOSEMU.
Pressing Ctrl-c or Ctrl-Break won't remove the incomplete target file
when running under Windows XP Command Prompt (something goes wrong
with SIGINT handling). It works correctly under Windows 95/98/98SE/ME.

8
dos/config.h
View File

@@ -10,9 +10,6 @@
/* Define to 1 if sha256 integrity check is enabled. */
#define HAVE_CHECK_SHA256 1
/* Define to 1 if any of HAVE_DECODER_foo have been defined. */
#define HAVE_DECODERS 1
/* Define to 1 if arm decoder is enabled. */
#define HAVE_DECODER_ARM 1
@@ -40,9 +37,6 @@
/* Define to 1 if x86 decoder is enabled. */
#define HAVE_DECODER_X86 1
/* Define to 1 if any of HAVE_ENCODER_foo have been defined. */
#define HAVE_ENCODERS 1
/* Define to 1 if arm encoder is enabled. */
#define HAVE_ENCODER_ARM 1
@@ -126,7 +120,7 @@
#define PACKAGE_NAME "XZ Utils"
/* Define to the home page for this package. */
#define PACKAGE_URL "https://tukaani.org/xz/"
#define PACKAGE_URL "http://tukaani.org/xz/"
/* The size of `size_t', as computed by sizeof. */
#define SIZEOF_SIZE_T 4

6
extra/scanlzma/scanlzma.c
View File

@@ -37,10 +37,6 @@
/* 5 8 Uncompressed size (little endian). -1 means unknown size */
/* 13 Compressed data */
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#define BUFSIZE 4096
int find_lzma_header(unsigned char *buf) {
@@ -52,7 +48,7 @@ int find_lzma_header(unsigned char *buf) {
}
int main(int argc, char *argv[]) {
unsigned char buf[BUFSIZE];
char buf[BUFSIZE];
int ret, i, numlzma, blocks=0;
if (argc != 2) {

3
m4/.gitignore vendored
View File

@@ -1,5 +1,4 @@
codeset.m4
fcntl-o.m4
gettext.m4
glibc2.m4
glibc21.m4
@@ -7,7 +6,6 @@ iconv.m4
intdiv0.m4
intl.m4
intldir.m4
intlmacosx.m4
intmax.m4
inttypes-pri.m4
inttypes_h.m4
@@ -29,7 +27,6 @@ printf-posix.m4
progtest.m4
size_max.m4
stdint_h.m4
threadlib.m4
uintmax_t.m4
ulonglong.m4
visibility.m4

279
m4/acx_pthread.m4 Normal file
View File

@@ -0,0 +1,279 @@
##### http://autoconf-archive.cryp.to/acx_pthread.html
#
# SYNOPSIS
#
# ACX_PTHREAD([ACTION-IF-FOUND[, ACTION-IF-NOT-FOUND]])
#
# DESCRIPTION
#
# This macro figures out how to build C programs using POSIX threads.
# It sets the PTHREAD_LIBS output variable to the threads library and
# linker flags, and the PTHREAD_CFLAGS output variable to any special
# C compiler flags that are needed. (The user can also force certain
# compiler flags/libs to be tested by setting these environment
# variables.)
#
# Also sets PTHREAD_CC to any special C compiler that is needed for
# multi-threaded programs (defaults to the value of CC otherwise).
# (This is necessary on AIX to use the special cc_r compiler alias.)
#
# NOTE: You are assumed to not only compile your program with these
# flags, but also link it with them as well. e.g. you should link
# with $PTHREAD_CC $CFLAGS $PTHREAD_CFLAGS $LDFLAGS ... $PTHREAD_LIBS
# $LIBS
#
# If you are only building threads programs, you may wish to use
# these variables in your default LIBS, CFLAGS, and CC:
#
# LIBS="$PTHREAD_LIBS $LIBS"
# CFLAGS="$CFLAGS $PTHREAD_CFLAGS"
# CC="$PTHREAD_CC"
#
# In addition, if the PTHREAD_CREATE_JOINABLE thread-attribute
# constant has a nonstandard name, defines PTHREAD_CREATE_JOINABLE to
# that name (e.g. PTHREAD_CREATE_UNDETACHED on AIX).
#
# ACTION-IF-FOUND is a list of shell commands to run if a threads
# library is found, and ACTION-IF-NOT-FOUND is a list of commands to
# run it if it is not found. If ACTION-IF-FOUND is not specified, the
# default action will define HAVE_PTHREAD.
#
# Please let the authors know if this macro fails on any platform, or
# if you have any other suggestions or comments. This macro was based
# on work by SGJ on autoconf scripts for FFTW (http://www.fftw.org/)
# (with help from M. Frigo), as well as ac_pthread and hb_pthread
# macros posted by Alejandro Forero Cuervo to the autoconf macro
# repository. We are also grateful for the helpful feedback of
# numerous users.
#
# LAST MODIFICATION
#
# 2007-07-29
#
# COPYLEFT
#
# Copyright (c) 2007 Steven G. Johnson <stevenj@alum.mit.edu>
#
# This program is free software: you can redistribute it and/or
# modify it under the terms of the GNU General Public License as
# published by the Free Software Foundation, either version 3 of the
# License, or (at your option) any later version.
#
# This program is distributed in the hope that it will be useful, but
# WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
# General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see
# <http://www.gnu.org/licenses/>.
#
# As a special exception, the respective Autoconf Macro's copyright
# owner gives unlimited permission to copy, distribute and modify the
# configure scripts that are the output of Autoconf when processing
# the Macro. You need not follow the terms of the GNU General Public
# License when using or distributing such scripts, even though
# portions of the text of the Macro appear in them. The GNU General
# Public License (GPL) does govern all other use of the material that
# constitutes the Autoconf Macro.
#
# This special exception to the GPL applies to versions of the
# Autoconf Macro released by the Autoconf Macro Archive. When you
# make and distribute a modified version of the Autoconf Macro, you
# may extend this special exception to the GPL to apply to your
# modified version as well.
AC_DEFUN([ACX_PTHREAD], [
AC_REQUIRE([AC_CANONICAL_HOST])
AC_LANG_SAVE
AC_LANG_C
acx_pthread_ok=no
# We used to check for pthread.h first, but this fails if pthread.h
# requires special compiler flags (e.g. on True64 or Sequent).
# It gets checked for in the link test anyway.
# First of all, check if the user has set any of the PTHREAD_LIBS,
# etcetera environment variables, and if threads linking works using
# them:
if test x"$PTHREAD_LIBS$PTHREAD_CFLAGS" != x; then
save_CFLAGS="$CFLAGS"
CFLAGS="$CFLAGS $PTHREAD_CFLAGS"
save_LIBS="$LIBS"
LIBS="$PTHREAD_LIBS $LIBS"
AC_MSG_CHECKING([for pthread_join in LIBS=$PTHREAD_LIBS with CFLAGS=$PTHREAD_CFLAGS])
AC_TRY_LINK_FUNC(pthread_join, acx_pthread_ok=yes)
AC_MSG_RESULT($acx_pthread_ok)
if test x"$acx_pthread_ok" = xno; then
PTHREAD_LIBS=""
PTHREAD_CFLAGS=""
fi
LIBS="$save_LIBS"
CFLAGS="$save_CFLAGS"
fi
# We must check for the threads library under a number of different
# names; the ordering is very important because some systems
# (e.g. DEC) have both -lpthread and -lpthreads, where one of the
# libraries is broken (non-POSIX).
# Create a list of thread flags to try. Items starting with a "-" are
# C compiler flags, and other items are library names, except for "none"
# which indicates that we try without any flags at all, and "pthread-config"
# which is a program returning the flags for the Pth emulation library.
acx_pthread_flags="pthreads none -Kthread -kthread lthread -pthread -pthreads -mthreads pthread --thread-safe -mt pthread-config"
# The ordering *is* (sometimes) important. Some notes on the
# individual items follow:
# pthreads: AIX (must check this before -lpthread)
# none: in case threads are in libc; should be tried before -Kthread and
# other compiler flags to prevent continual compiler warnings
# -Kthread: Sequent (threads in libc, but -Kthread needed for pthread.h)
# -kthread: FreeBSD kernel threads (preferred to -pthread since SMP-able)
# lthread: LinuxThreads port on FreeBSD (also preferred to -pthread)
# -pthread: Linux/gcc (kernel threads), BSD/gcc (userland threads)
# -pthreads: Solaris/gcc
# -mthreads: Mingw32/gcc, Lynx/gcc
# -mt: Sun Workshop C (may only link SunOS threads [-lthread], but it
# doesn't hurt to check since this sometimes defines pthreads too;
# also defines -D_REENTRANT)
# ... -mt is also the pthreads flag for HP/aCC
# pthread: Linux, etcetera
# --thread-safe: KAI C++
# pthread-config: use pthread-config program (for GNU Pth library)
case "${host_cpu}-${host_os}" in
*solaris*)
# On Solaris (at least, for some versions), libc contains stubbed
# (non-functional) versions of the pthreads routines, so link-based
# tests will erroneously succeed. (We need to link with -pthreads/-mt/
# -lpthread.) (The stubs are missing pthread_cleanup_push, or rather
# a function called by this macro, so we could check for that, but
# who knows whether they'll stub that too in a future libc.) So,
# we'll just look for -pthreads and -lpthread first:
acx_pthread_flags="-pthreads pthread -mt -pthread $acx_pthread_flags"
;;
esac
if test x"$acx_pthread_ok" = xno; then
for flag in $acx_pthread_flags; do
case $flag in
none)
AC_MSG_CHECKING([whether pthreads work without any flags])
;;
-*)
AC_MSG_CHECKING([whether pthreads work with $flag])
PTHREAD_CFLAGS="$flag"
;;
pthread-config)
AC_CHECK_PROG(acx_pthread_config, pthread-config, yes, no)
if test x"$acx_pthread_config" = xno; then continue; fi
PTHREAD_CFLAGS="`pthread-config --cflags`"
PTHREAD_LIBS="`pthread-config --ldflags` `pthread-config --libs`"
;;
*)
AC_MSG_CHECKING([for the pthreads library -l$flag])
PTHREAD_LIBS="-l$flag"
;;
esac
save_LIBS="$LIBS"
save_CFLAGS="$CFLAGS"
LIBS="$PTHREAD_LIBS $LIBS"
CFLAGS="$CFLAGS $PTHREAD_CFLAGS"
# Check for various functions. We must include pthread.h,
# since some functions may be macros. (On the Sequent, we
# need a special flag -Kthread to make this header compile.)
# We check for pthread_join because it is in -lpthread on IRIX
# while pthread_create is in libc. We check for pthread_attr_init
# due to DEC craziness with -lpthreads. We check for
# pthread_cleanup_push because it is one of the few pthread
# functions on Solaris that doesn't have a non-functional libc stub.
# We try pthread_create on general principles.
AC_TRY_LINK([#include <pthread.h>],
[pthread_t th; pthread_join(th, 0);
pthread_attr_init(0); pthread_cleanup_push(0, 0);
pthread_create(0,0,0,0); pthread_cleanup_pop(0); ],
[acx_pthread_ok=yes])
LIBS="$save_LIBS"
CFLAGS="$save_CFLAGS"
AC_MSG_RESULT($acx_pthread_ok)
if test "x$acx_pthread_ok" = xyes; then
break;
fi
PTHREAD_LIBS=""
PTHREAD_CFLAGS=""
done
fi
# Various other checks:
if test "x$acx_pthread_ok" = xyes; then
save_LIBS="$LIBS"
LIBS="$PTHREAD_LIBS $LIBS"
save_CFLAGS="$CFLAGS"
CFLAGS="$CFLAGS $PTHREAD_CFLAGS"
# Detect AIX lossage: JOINABLE attribute is called UNDETACHED.
AC_MSG_CHECKING([for joinable pthread attribute])
attr_name=unknown
for attr in PTHREAD_CREATE_JOINABLE PTHREAD_CREATE_UNDETACHED; do
AC_TRY_LINK([#include <pthread.h>], [int attr=$attr; return attr;],
[attr_name=$attr; break])
done
AC_MSG_RESULT($attr_name)
if test "$attr_name" != PTHREAD_CREATE_JOINABLE; then
AC_DEFINE_UNQUOTED(PTHREAD_CREATE_JOINABLE, $attr_name,
[Define to necessary symbol if this constant
uses a non-standard name on your system.])
fi
AC_MSG_CHECKING([if more special flags are required for pthreads])
flag=no
case "${host_cpu}-${host_os}" in
*-aix* | *-freebsd* | *-darwin*) flag="-D_THREAD_SAFE";;
*solaris* | *-osf* | *-hpux*) flag="-D_REENTRANT";;
esac
AC_MSG_RESULT(${flag})
if test "x$flag" != xno; then
PTHREAD_CFLAGS="$flag $PTHREAD_CFLAGS"
fi
LIBS="$save_LIBS"
CFLAGS="$save_CFLAGS"
# More AIX lossage: must compile with xlc_r or cc_r
if test x"$GCC" != xyes; then
AC_CHECK_PROGS(PTHREAD_CC, xlc_r cc_r, ${CC})
else
PTHREAD_CC=$CC
fi
else
PTHREAD_CC="$CC"
fi
AC_SUBST(PTHREAD_LIBS)
AC_SUBST(PTHREAD_CFLAGS)
AC_SUBST(PTHREAD_CC)
# Finally, execute ACTION-IF-FOUND/ACTION-IF-NOT-FOUND:
if test x"$acx_pthread_ok" = xyes; then
ifelse([$1],,AC_DEFINE(HAVE_PTHREAD,1,[Define if you have POSIX threads libraries and header files.]),[$1])
:
else
acx_pthread_ok=no
$2
fi
AC_LANG_RESTORE
])dnl ACX_PTHREAD

85
m4/ax_check_capsicum.m4
View File

@@ -1,85 +0,0 @@
# -*- Autoconf -*-
# SYNOPSIS
#
# AX_CHECK_CAPSICUM([ACTION-IF-FOUND[, ACTION-IF-NOT-FOUND]])
#
# DESCRIPTION
#
# This macro searches for an installed Capsicum header and library,
# and if found:
# - AC_DEFINE([HAVE_CAPSICUM]) is called.
# - AC_DEFINE([HAVE_SYS_CAPSICUM_H]) is called if <sys/capsicum.h>
# is present (otherwise <sys/capability.h> must be used).
# - CAPSICUM_LIB is set to the -l option needed to link Capsicum support,
# and AC_SUBST([CAPSICUM_LIB]) is called.
# - The shell commands in ACTION-IF-FOUND are run. The default
# ACTION-IF-FOUND prepends ${CAPSICUM_LIB} into LIBS. If you don't
# want to modify LIBS and don't need to run any other commands either,
# use a colon as ACTION-IF-FOUND.
#
# If Capsicum support isn't found:
# - The shell commands in ACTION-IF-NOT-FOUND are run. The default
# ACTION-IF-NOT-FOUND calls AC_MSG_WARN to print a warning that
# Capsicum support wasn't found.
#
# You should use autoheader to include a definition for the symbols above
# in a config.h file.
#
# Sample usage in a C/C++ source is as follows:
#
# #ifdef HAVE_CAPSICUM
# # ifdef HAVE_SYS_CAPSICUM_H
# # include <sys/capsicum.h>
# # else
# # include <sys/capability.h>
# # endif
# #endif /* HAVE_CAPSICUM */
#
# LICENSE
#
# Copyright (c) 2014 Google Inc.
# Copyright (c) 2015 Lasse Collin <lasse.collin@tukaani.org>
#
# Copying and distribution of this file, with or without modification,
# are permitted in any medium without royalty provided the copyright
# notice and this notice are preserved. This file is offered as-is,
# without any warranty.
#serial 2
AC_DEFUN([AX_CHECK_CAPSICUM], [
# On FreeBSD >= 11.x and Linux, Capsicum is uses <sys/capsicum.h>.
# If this header is found, it is assumed to be the right one.
capsicum_header_found=no
AC_CHECK_HEADERS([sys/capsicum.h], [capsicum_header_found=yes])
if test "$capsicum_header_found" = no ; then
# On FreeBSD 10.x Capsicum uses <sys/capability.h>. Such a header exists
# on Linux too but it describes POSIX.1e capabilities. Look for the
# declaration of cap_rights_limit to check if <sys/capability.h> is
# a Capsicum header.
AC_CHECK_DECL([cap_rights_limit], [capsicum_header_found=yes], [],
[#include <sys/capability.h>])
fi
capsicum_lib_found=no
CAPSICUM_LIB=
if test "$capsicum_header_found" = yes ; then
AC_LANG_PUSH([C])
# FreeBSD >= 10.x has Capsicum functions in libc.
AC_LINK_IFELSE([AC_LANG_CALL([], [cap_rights_limit])],
[capsicum_lib_found=yes], [])
# Linux has Capsicum functions in libcaprights.
AC_CHECK_LIB([caprights], [cap_rights_limit],
[CAPSICUM_LIB=-lcaprights
capsicum_lib_found=yes], [])
AC_LANG_POP([C])
fi
AC_SUBST([CAPSICUM_LIB])
if test "$capsicum_lib_found" = yes ; then
AC_DEFINE([HAVE_CAPSICUM], [1], [Define to 1 if Capsicum is available.])
m4_default([$1], [LIBS="${CAPSICUM_LIB} $LIBS"])
else
m4_default([$2], [AC_MSG_WARN([Capsicum support not found])])
fi])

332
m4/ax_pthread.m4
View File

@@ -1,332 +0,0 @@
# ===========================================================================
# http://www.gnu.org/software/autoconf-archive/ax_pthread.html
# ===========================================================================
#
# SYNOPSIS
#
# AX_PTHREAD([ACTION-IF-FOUND[, ACTION-IF-NOT-FOUND]])
#
# DESCRIPTION
#
# This macro figures out how to build C programs using POSIX threads. It
# sets the PTHREAD_LIBS output variable to the threads library and linker
# flags, and the PTHREAD_CFLAGS output variable to any special C compiler
# flags that are needed. (The user can also force certain compiler
# flags/libs to be tested by setting these environment variables.)
#
# Also sets PTHREAD_CC to any special C compiler that is needed for
# multi-threaded programs (defaults to the value of CC otherwise). (This
# is necessary on AIX to use the special cc_r compiler alias.)
#
# NOTE: You are assumed to not only compile your program with these flags,
# but also link it with them as well. e.g. you should link with
# $PTHREAD_CC $CFLAGS $PTHREAD_CFLAGS $LDFLAGS ... $PTHREAD_LIBS $LIBS
#
# If you are only building threads programs, you may wish to use these
# variables in your default LIBS, CFLAGS, and CC:
#
# LIBS="$PTHREAD_LIBS $LIBS"
# CFLAGS="$CFLAGS $PTHREAD_CFLAGS"
# CC="$PTHREAD_CC"
#
# In addition, if the PTHREAD_CREATE_JOINABLE thread-attribute constant
# has a nonstandard name, defines PTHREAD_CREATE_JOINABLE to that name
# (e.g. PTHREAD_CREATE_UNDETACHED on AIX).
#
# Also HAVE_PTHREAD_PRIO_INHERIT is defined if pthread is found and the
# PTHREAD_PRIO_INHERIT symbol is defined when compiling with
# PTHREAD_CFLAGS.
#
# ACTION-IF-FOUND is a list of shell commands to run if a threads library
# is found, and ACTION-IF-NOT-FOUND is a list of commands to run it if it
# is not found. If ACTION-IF-FOUND is not specified, the default action
# will define HAVE_PTHREAD.
#
# Please let the authors know if this macro fails on any platform, or if
# you have any other suggestions or comments. This macro was based on work
# by SGJ on autoconf scripts for FFTW (http://www.fftw.org/) (with help
# from M. Frigo), as well as ac_pthread and hb_pthread macros posted by
# Alejandro Forero Cuervo to the autoconf macro repository. We are also
# grateful for the helpful feedback of numerous users.
#
# Updated for Autoconf 2.68 by Daniel Richard G.
#
# LICENSE
#
# Copyright (c) 2008 Steven G. Johnson <stevenj@alum.mit.edu>
# Copyright (c) 2011 Daniel Richard G. <skunk@iSKUNK.ORG>
#
# This program is free software: you can redistribute it and/or modify it
# under the terms of the GNU General Public License as published by the
# Free Software Foundation, either version 3 of the License, or (at your
# option) any later version.
#
# This program is distributed in the hope that it will be useful, but
# WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General
# Public License for more details.
#
# You should have received a copy of the GNU General Public License along
# with this program. If not, see <http://www.gnu.org/licenses/>.
#
# As a special exception, the respective Autoconf Macro's copyright owner
# gives unlimited permission to copy, distribute and modify the configure
# scripts that are the output of Autoconf when processing the Macro. You
# need not follow the terms of the GNU General Public License when using
# or distributing such scripts, even though portions of the text of the
# Macro appear in them. The GNU General Public License (GPL) does govern
# all other use of the material that constitutes the Autoconf Macro.
#
# This special exception to the GPL applies to versions of the Autoconf
# Macro released by the Autoconf Archive. When you make and distribute a
# modified version of the Autoconf Macro, you may extend this special
# exception to the GPL to apply to your modified version as well.
#serial 21
AU_ALIAS([ACX_PTHREAD], [AX_PTHREAD])
AC_DEFUN([AX_PTHREAD], [
AC_REQUIRE([AC_CANONICAL_HOST])
AC_LANG_PUSH([C])
ax_pthread_ok=no
# We used to check for pthread.h first, but this fails if pthread.h
# requires special compiler flags (e.g. on True64 or Sequent).
# It gets checked for in the link test anyway.
# First of all, check if the user has set any of the PTHREAD_LIBS,
# etcetera environment variables, and if threads linking works using
# them:
if test x"$PTHREAD_LIBS$PTHREAD_CFLAGS" != x; then
save_CFLAGS="$CFLAGS"
CFLAGS="$CFLAGS $PTHREAD_CFLAGS"
save_LIBS="$LIBS"
LIBS="$PTHREAD_LIBS $LIBS"
AC_MSG_CHECKING([for pthread_join in LIBS=$PTHREAD_LIBS with CFLAGS=$PTHREAD_CFLAGS])
AC_TRY_LINK_FUNC([pthread_join], [ax_pthread_ok=yes])
AC_MSG_RESULT([$ax_pthread_ok])
if test x"$ax_pthread_ok" = xno; then
PTHREAD_LIBS=""
PTHREAD_CFLAGS=""
fi
LIBS="$save_LIBS"
CFLAGS="$save_CFLAGS"
fi
# We must check for the threads library under a number of different
# names; the ordering is very important because some systems
# (e.g. DEC) have both -lpthread and -lpthreads, where one of the
# libraries is broken (non-POSIX).
# Create a list of thread flags to try. Items starting with a "-" are
# C compiler flags, and other items are library names, except for "none"
# which indicates that we try without any flags at all, and "pthread-config"
# which is a program returning the flags for the Pth emulation library.
ax_pthread_flags="pthreads none -Kthread -kthread lthread -pthread -pthreads -mthreads pthread --thread-safe -mt pthread-config"
# The ordering *is* (sometimes) important. Some notes on the
# individual items follow:
# pthreads: AIX (must check this before -lpthread)
# none: in case threads are in libc; should be tried before -Kthread and
# other compiler flags to prevent continual compiler warnings
# -Kthread: Sequent (threads in libc, but -Kthread needed for pthread.h)
# -kthread: FreeBSD kernel threads (preferred to -pthread since SMP-able)
# lthread: LinuxThreads port on FreeBSD (also preferred to -pthread)
# -pthread: Linux/gcc (kernel threads), BSD/gcc (userland threads)
# -pthreads: Solaris/gcc
# -mthreads: Mingw32/gcc, Lynx/gcc
# -mt: Sun Workshop C (may only link SunOS threads [-lthread], but it
# doesn't hurt to check since this sometimes defines pthreads too;
# also defines -D_REENTRANT)
# ... -mt is also the pthreads flag for HP/aCC
# pthread: Linux, etcetera
# --thread-safe: KAI C++
# pthread-config: use pthread-config program (for GNU Pth library)
case ${host_os} in
solaris*)
# On Solaris (at least, for some versions), libc contains stubbed
# (non-functional) versions of the pthreads routines, so link-based
# tests will erroneously succeed. (We need to link with -pthreads/-mt/
# -lpthread.) (The stubs are missing pthread_cleanup_push, or rather
# a function called by this macro, so we could check for that, but
# who knows whether they'll stub that too in a future libc.) So,
# we'll just look for -pthreads and -lpthread first:
ax_pthread_flags="-pthreads pthread -mt -pthread $ax_pthread_flags"
;;
darwin*)
ax_pthread_flags="-pthread $ax_pthread_flags"
;;
esac
# Clang doesn't consider unrecognized options an error unless we specify
# -Werror. We throw in some extra Clang-specific options to ensure that
# this doesn't happen for GCC, which also accepts -Werror.
AC_MSG_CHECKING([if compiler needs -Werror to reject unknown flags])
save_CFLAGS="$CFLAGS"
ax_pthread_extra_flags="-Werror"
CFLAGS="$CFLAGS $ax_pthread_extra_flags -Wunknown-warning-option -Wsizeof-array-argument"
AC_COMPILE_IFELSE([AC_LANG_PROGRAM([int foo(void);],[foo()])],
[AC_MSG_RESULT([yes])],
[ax_pthread_extra_flags=
AC_MSG_RESULT([no])])
CFLAGS="$save_CFLAGS"
if test x"$ax_pthread_ok" = xno; then
for flag in $ax_pthread_flags; do
case $flag in
none)
AC_MSG_CHECKING([whether pthreads work without any flags])
;;
-*)
AC_MSG_CHECKING([whether pthreads work with $flag])
PTHREAD_CFLAGS="$flag"
;;
pthread-config)
AC_CHECK_PROG([ax_pthread_config], [pthread-config], [yes], [no])
if test x"$ax_pthread_config" = xno; then continue; fi
PTHREAD_CFLAGS="`pthread-config --cflags`"
PTHREAD_LIBS="`pthread-config --ldflags` `pthread-config --libs`"
;;
*)
AC_MSG_CHECKING([for the pthreads library -l$flag])
PTHREAD_LIBS="-l$flag"
;;
esac
save_LIBS="$LIBS"
save_CFLAGS="$CFLAGS"
LIBS="$PTHREAD_LIBS $LIBS"
CFLAGS="$CFLAGS $PTHREAD_CFLAGS $ax_pthread_extra_flags"
# Check for various functions. We must include pthread.h,
# since some functions may be macros. (On the Sequent, we
# need a special flag -Kthread to make this header compile.)
# We check for pthread_join because it is in -lpthread on IRIX
# while pthread_create is in libc. We check for pthread_attr_init
# due to DEC craziness with -lpthreads. We check for
# pthread_cleanup_push because it is one of the few pthread
# functions on Solaris that doesn't have a non-functional libc stub.
# We try pthread_create on general principles.
AC_LINK_IFELSE([AC_LANG_PROGRAM([#include <pthread.h>
static void routine(void *a) { a = 0; }
static void *start_routine(void *a) { return a; }],
[pthread_t th; pthread_attr_t attr;
pthread_create(&th, 0, start_routine, 0);
pthread_join(th, 0);
pthread_attr_init(&attr);
pthread_cleanup_push(routine, 0);
pthread_cleanup_pop(0) /* ; */])],
[ax_pthread_ok=yes],
[])
LIBS="$save_LIBS"
CFLAGS="$save_CFLAGS"
AC_MSG_RESULT([$ax_pthread_ok])
if test "x$ax_pthread_ok" = xyes; then
break;
fi
PTHREAD_LIBS=""
PTHREAD_CFLAGS=""
done
fi
# Various other checks:
if test "x$ax_pthread_ok" = xyes; then
save_LIBS="$LIBS"
LIBS="$PTHREAD_LIBS $LIBS"
save_CFLAGS="$CFLAGS"
CFLAGS="$CFLAGS $PTHREAD_CFLAGS"
# Detect AIX lossage: JOINABLE attribute is called UNDETACHED.
AC_MSG_CHECKING([for joinable pthread attribute])
attr_name=unknown
for attr in PTHREAD_CREATE_JOINABLE PTHREAD_CREATE_UNDETACHED; do
AC_LINK_IFELSE([AC_LANG_PROGRAM([#include <pthread.h>],
[int attr = $attr; return attr /* ; */])],
[attr_name=$attr; break],
[])
done
AC_MSG_RESULT([$attr_name])
if test "$attr_name" != PTHREAD_CREATE_JOINABLE; then
AC_DEFINE_UNQUOTED([PTHREAD_CREATE_JOINABLE], [$attr_name],
[Define to necessary symbol if this constant
uses a non-standard name on your system.])
fi
AC_MSG_CHECKING([if more special flags are required for pthreads])
flag=no
case ${host_os} in
aix* | freebsd* | darwin*) flag="-D_THREAD_SAFE";;
osf* | hpux*) flag="-D_REENTRANT";;
solaris*)
if test "$GCC" = "yes"; then
flag="-D_REENTRANT"
else
# TODO: What about Clang on Solaris?
flag="-mt -D_REENTRANT"
fi
;;
esac
AC_MSG_RESULT([$flag])
if test "x$flag" != xno; then
PTHREAD_CFLAGS="$flag $PTHREAD_CFLAGS"
fi
AC_CACHE_CHECK([for PTHREAD_PRIO_INHERIT],
[ax_cv_PTHREAD_PRIO_INHERIT], [
AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <pthread.h>]],
[[int i = PTHREAD_PRIO_INHERIT;]])],
[ax_cv_PTHREAD_PRIO_INHERIT=yes],
[ax_cv_PTHREAD_PRIO_INHERIT=no])
])
AS_IF([test "x$ax_cv_PTHREAD_PRIO_INHERIT" = "xyes"],
[AC_DEFINE([HAVE_PTHREAD_PRIO_INHERIT], [1], [Have PTHREAD_PRIO_INHERIT.])])
LIBS="$save_LIBS"
CFLAGS="$save_CFLAGS"
# More AIX lossage: compile with *_r variant
if test "x$GCC" != xyes; then
case $host_os in
aix*)
AS_CASE(["x/$CC"],
[x*/c89|x*/c89_128|x*/c99|x*/c99_128|x*/cc|x*/cc128|x*/xlc|x*/xlc_v6|x*/xlc128|x*/xlc128_v6],
[#handle absolute path differently from PATH based program lookup
AS_CASE(["x$CC"],
[x/*],
[AS_IF([AS_EXECUTABLE_P([${CC}_r])],[PTHREAD_CC="${CC}_r"])],
[AC_CHECK_PROGS([PTHREAD_CC],[${CC}_r],[$CC])])])
;;
esac
fi
fi
test -n "$PTHREAD_CC" || PTHREAD_CC="$CC"
AC_SUBST([PTHREAD_LIBS])
AC_SUBST([PTHREAD_CFLAGS])
AC_SUBST([PTHREAD_CC])
# Finally, execute ACTION-IF-FOUND/ACTION-IF-NOT-FOUND:
if test x"$ax_pthread_ok" = xyes; then
ifelse([$1],,[AC_DEFINE([HAVE_PTHREAD],[1],[Define if you have POSIX threads libraries and header files.])],[$1])
:
else
ax_pthread_ok=no
$2
fi
AC_LANG_POP
])dnl AX_PTHREAD

81
m4/tuklib_cpucores.m4
View File

@@ -9,12 +9,8 @@
# This information is used by tuklib_cpucores.c.
#
# Supported methods:
# - GetSystemInfo(): Windows (including Cygwin)
# - sched_getaffinity(): glibc (GNU/Linux, GNU/kFreeBSD)
# - cpuset_getaffinity(): FreeBSD
# - sysctl(): BSDs, OS/2
# - sysconf(): GNU/Linux, Solaris, Tru64, IRIX, AIX, QNX, Cygwin (but
# GetSystemInfo() is used on Cygwin)
# - sysconf(): GNU/Linux, Solaris, Tru64, IRIX, AIX, Cygwin
# - pstat_getdynamic(): HP-UX
#
# COPYING
@@ -34,67 +30,10 @@ AC_CHECK_HEADERS([sys/param.h])
AC_CACHE_CHECK([how to detect the number of available CPU cores],
[tuklib_cv_cpucores_method], [
# Maybe checking $host_os would be enough but this matches what
# tuklib_cpucores.c does.
#
# NOTE: IRIX has a compiler that doesn't error out with #error, so use
# a non-compilable text instead of #error to generate an error.
# Look for sysctl() solution first, because on OS/2, both sysconf()
# and sysctl() pass the tests in this file, but only sysctl()
# actually works.
AC_COMPILE_IFELSE([AC_LANG_SOURCE([[
#if defined(_WIN32) || defined(__CYGWIN__)
int main(void) { return 0; }
#else
compile error
#endif
]])], [tuklib_cv_cpucores_method=special], [
# glibc-based systems (GNU/Linux and GNU/kFreeBSD) have sched_getaffinity().
# The CPU_COUNT() macro was added in glibc 2.9 so we try to link the
# test program instead of merely compiling it. glibc 2.9 is old enough that
# if someone uses the code on older glibc, the fallback to sysconf() should
# be good enough.
AC_LINK_IFELSE([AC_LANG_SOURCE([[
#include <sched.h>
int
main(void)
{
cpu_set_t cpu_mask;
sched_getaffinity(0, sizeof(cpu_mask), &cpu_mask);
return CPU_COUNT(&cpu_mask);
}
]])], [tuklib_cv_cpucores_method=sched_getaffinity], [
# FreeBSD has both cpuset and sysctl. Look for cpuset first because
# it's a better approach.
#
# This test would match on GNU/kFreeBSD too but it would require
# -lfreebsd-glue when linking and thus in the current form this would
# fail on GNU/kFreeBSD. The above test for sched_getaffinity() matches
# on GNU/kFreeBSD so the test below should never run on that OS.
AC_COMPILE_IFELSE([AC_LANG_SOURCE([[
#include <sys/param.h>
#include <sys/cpuset.h>
int
main(void)
{
cpuset_t set;
cpuset_getaffinity(CPU_LEVEL_WHICH, CPU_WHICH_PID, -1,
sizeof(set), &set);
return 0;
}
]])], [tuklib_cv_cpucores_method=cpuset], [
# On OS/2, both sysconf() and sysctl() pass the tests in this file,
# but only sysctl() works. On QNX it's the opposite: only sysconf() works
# (although it assumes that _POSIX_SOURCE, _XOPEN_SOURCE, and _POSIX_C_SOURCE
# are undefined or alternatively _QNX_SOURCE is defined).
#
# We test sysctl() first and intentionally break the sysctl() test on QNX
# so that sysctl() is never used on QNX.
AC_COMPILE_IFELSE([AC_LANG_SOURCE([[
#ifdef __QNX__
compile error
#endif
#include <sys/types.h>
#ifdef HAVE_SYS_PARAM_H
# include <sys/param.h>
@@ -143,19 +82,9 @@ main(void)
]])], [tuklib_cv_cpucores_method=pstat_getdynamic], [
tuklib_cv_cpucores_method=unknown
])])])])])])])
])])])])
case $tuklib_cv_cpucores_method in
sched_getaffinity)
AC_DEFINE([TUKLIB_CPUCORES_SCHED_GETAFFINITY], [1],
[Define to 1 if the number of available CPU cores
can be detected with sched_getaffinity()])
;;
cpuset)
AC_DEFINE([TUKLIB_CPUCORES_CPUSET], [1],
[Define to 1 if the number of available CPU cores
can be detected with cpuset(2).])
;;
sysctl)
AC_DEFINE([TUKLIB_CPUCORES_SYSCTL], [1],
[Define to 1 if the number of available CPU cores

2
m4/tuklib_integer.m4
View File

@@ -46,7 +46,7 @@ main(void)
fi
AC_MSG_CHECKING([if unaligned memory access should be used])
AC_ARG_ENABLE([unaligned-access], AS_HELP_STRING([--enable-unaligned-access],
AC_ARG_ENABLE([unaligned-access], AC_HELP_STRING([--enable-unaligned-access],
[Enable if the system supports *fast* unaligned memory access
with 16-bit and 32-bit integers. By default, this is enabled
only on x86, x86_64, and big endian PowerPC.]),

7
m4/tuklib_physmem.m4
View File

@@ -10,8 +10,8 @@
#
# Supported methods:
#
# - Windows (including Cygwin), OS/2, DJGPP (DOS), OpenVMS, AROS,
# and QNX have operating-system specific functions.
# - Windows (including Cygwin), OS/2, DJGPP (DOS), and OpenVMS have
# operating-system specific functions.
#
# - AIX has _system_configuration.physmem.
#
@@ -53,8 +53,7 @@ AC_CACHE_CHECK([how to detect the amount of physical memory],
# a non-compilable text instead of #error to generate an error.
AC_COMPILE_IFELSE([AC_LANG_SOURCE([[
#if defined(_WIN32) || defined(__CYGWIN__) || defined(__OS2__) \
|| defined(__DJGPP__) || defined(__VMS) \
|| defined(AMIGA) || defined(__AROS__) || defined(__QNX__)
|| defined(__DJGPP__) || defined(__VMS)
int main(void) { return 0; }
#else
compile error

113
macosx/build.sh
View File

@@ -1,113 +0,0 @@
#!/bin/sh
###############################################################################
# Author: Anders F Björklund <afb@users.sourceforge.net>
#
# This file has been put into the public domain.
# You can do whatever you want with this file.
###############################################################################
mkdir -p Root
mkdir -p Resources
# Abort immediately if something goes wrong.
set -e
GCC="gcc-4.2"
SDK="/Developer/SDKs/MacOSX10.5.sdk"
MDT="10.5"
GTT=i686-apple-darwin9
ARCHES1="-arch ppc -arch ppc64 -arch i386 -arch x86_64"
ARCHES2="-arch ppc -arch i386"
PKGFORMAT="10.5" # xar
# avoid "unknown required load command: 0x80000022" from linking on Snow Leopard
uname -r | grep ^1 >/dev/null && LDFLAGS="$LDFLAGS -Wl,-no_compact_linkedit"
# Clean up if it was already configured.
[ -f Makefile ] && make distclean
# Build the regular fat program
CC="$GCC" \
CFLAGS="-O2 -g $ARCHES1 -isysroot $SDK -mmacosx-version-min=$MDT" \
../configure --disable-dependency-tracking --disable-xzdec --disable-lzmadec $GTT
make
make check
make DESTDIR=`pwd`/Root install
make distclean
# Build the size-optimized program
CC="$GCC" \
CFLAGS="-Os -g $ARCHES2 -isysroot $SDK -mmacosx-version-min=$MDT" \
../configure --disable-dependency-tracking --disable-shared --disable-nls --disable-encoders --enable-small --disable-threads $GTT
make -C src/liblzma
make -C src/xzdec
make -C src/xzdec DESTDIR=`pwd`/Root install
cp -a ../extra Root/usr/local/share/doc/xz
make distclean
# Move development files to different package
test -d liblzma && rm -r liblzma
mkdir -p liblzma/usr/local
mv Root/usr/local/include liblzma/usr/local
mv Root/usr/local/lib liblzma/usr/local
mkdir -p Root/usr/local/lib
cp -p liblzma/usr/local/lib/liblzma.5.dylib Root/usr/local/lib
mkdir -p liblzma/usr/local/share/doc/xz
mv Root/usr/local/share/doc/xz/examples* liblzma/usr/local/share/doc/xz
# Strip debugging symbols and make relocatable
for bin in xz lzmainfo xzdec lzmadec; do
strip -S Root/usr/local/bin/$bin
install_name_tool -change /usr/local/lib/liblzma.5.dylib @executable_path/../lib/liblzma.5.dylib Root/usr/local/bin/$bin
done
for lib in liblzma.5.dylib; do
strip -S Root/usr/local/lib/$lib
install_name_tool -id @executable_path/../lib/liblzma.5.dylib Root/usr/local/lib/$lib
done
# Create tarball, but without the HFS+ attrib
rmdir debug lib po src/liblzma/api src/liblzma src/lzmainfo src/scripts src/xz src/xzdec src tests
( cd Root/usr/local; COPY_EXTENDED_ATTRIBUTES_DISABLE=true COPYFILE_DISABLE=true tar cvjf ../../../XZ.tbz * )
( cd liblzma; COPY_EXTENDED_ATTRIBUTES_DISABLE=true COPYFILE_DISABLE=true tar cvjf ../liblzma.tbz ./usr/local )
# Include documentation files for package
cp -p ../README Resources/ReadMe.txt
cp -p ../COPYING Resources/License.txt
# Make an Installer.app package
ID="org.tukaani.xz"
VERSION=`cd ..; sh build-aux/version.sh`
PACKAGEMAKER=/Developer/Applications/Utilities/PackageMaker.app/Contents/MacOS/PackageMaker
$PACKAGEMAKER -r Root/usr/local -l /usr/local -e Resources -i $ID -n $VERSION -t XZ -o XZ.pkg -g $PKGFORMAT --verbose
$PACKAGEMAKER -r liblzma -w -k -i $ID.liblzma -n $VERSION -o liblzma.pkg -g $PKGFORMAT --verbose
# Put the package in a disk image
if [ "$PKGFORMAT" != "10.5" ]; then
hdiutil create -fs HFS+ -format UDZO -quiet -srcfolder XZ.pkg -ov XZ.dmg
hdiutil internet-enable -yes -quiet XZ.dmg
fi
echo
echo "Build completed successfully."
echo

1
po/LINGUAS
View File

@@ -3,4 +3,3 @@ de
fr
it
pl
vi

718
po/de.po
View File

File diff suppressed because it is too large Load Diff

448
po/fr.po
View File

File diff suppressed because it is too large Load Diff

439
po/it.po
View File

@@ -2,116 +2,78 @@
# This file is in the public domain
# Gruppo traduzione italiano di Ubuntu-it <gruppo-traduzione@ubuntu-it.org>, 2009, 2010
# Lorenzo De Liso <blackz@ubuntu.com>, 2010.
# Milo Casagrande <milo@ubuntu.com>, 2009, 2010, 2011, 2014.
#
# Milo Casagrande <milo@ubuntu.com>, 2009, 2010.
msgid ""
msgstr ""
"Project-Id-Version: xz-utils\n"
"Report-Msgid-Bugs-To: lasse.collin@tukaani.org\n"
"POT-Creation-Date: 2014-09-14 21:56+0300\n"
"PO-Revision-Date: 2014-10-20 13:16+0100\n"
"Last-Translator: Milo Casagrande <milo@milo.name>\n"
"POT-Creation-Date: 2010-09-10 14:50+0300\n"
"PO-Revision-Date: 2010-09-16 21:32+0200\n"
"Last-Translator: Milo Casagrande <milo@ubuntu.com>\n"
"Language-Team: Italian <tp@lists.linux.it>\n"
"Language: it\n"
"MIME-Version: 1.0\n"
"Content-Type: text/plain; charset=UTF-8\n"
"Content-Transfer-Encoding: 8bit\n"
"X-Launchpad-Export-Date: 2010-08-16 19:16+0000\n"
"X-Generator: Poedit 1.6.10\n"
"X-Generator: Launchpad (build Unknown)\n"
"Plural-Forms: nplurals=2; plural=(n != 1);\n"
#: src/xz/args.c:63
#, c-format
msgid "%s: Invalid argument to --block-list"
msgstr "%s: argomento non valido per --block-list"
#: src/xz/args.c:73
#, c-format
msgid "%s: Too many arguments to --block-list"
msgstr "%s: troppi argomenti per --block-list"
#: src/xz/args.c:102
msgid "0 can only be used as the last element in --block-list"
msgstr "0 può essere usato solo come ultimo elemento in --block-list"
#: src/xz/args.c:406
#: src/xz/args.c:333
#, c-format
msgid "%s: Unknown file format type"
msgstr "%s: tipo di formato del file sconosciuto"
msgstr "%s: tipo di formato del file sconosciutoN"
#: src/xz/args.c:429 src/xz/args.c:437
#: src/xz/args.c:356 src/xz/args.c:364
#, c-format
msgid "%s: Unsupported integrity check type"
msgstr "%s: tipo di controllo integrità non supportato"
#: src/xz/args.c:473
#: src/xz/args.c:382
msgid "Only one file can be specified with `--files' or `--files0'."
msgstr "Solo un file può essere specificato con \"--files\" o \"--files0\"."
#: src/xz/args.c:541
#: src/xz/args.c:445
#, c-format
msgid "The environment variable %s contains too many arguments"
msgstr "La variabile d'ambiente %s contiene troppi argomenti"
#: src/xz/coder.c:110
#: src/xz/coder.c:95
msgid "Maximum number of filters is four"
msgstr "Il numero massimo di filtri è quattro"
#: src/xz/coder.c:129
#: src/xz/coder.c:108
msgid "Memory usage limit is too low for the given filter setup."
msgstr ""
"Il limite dell'uso della memoria è troppo basso per l'impostazione del "
"filtro dato."
#: src/xz/coder.c:159
#: src/xz/coder.c:129
msgid "Using a preset in raw mode is discouraged."
msgstr "Non è consigliato usare un preset nella modalità raw."
#: src/xz/coder.c:161
#: src/xz/coder.c:131
msgid "The exact options of the presets may vary between software versions."
msgstr ""
"Le opzioni esatte per i preset possono variare tra le versioni del software."
#: src/xz/coder.c:184
#: src/xz/coder.c:157
msgid "The .lzma format supports only the LZMA1 filter"
msgstr "Il formato .lzma supporta solo il filtro LZMA1"
#: src/xz/coder.c:192
#: src/xz/coder.c:165
msgid "LZMA1 cannot be used with the .xz format"
msgstr "LZMA1 non può essere usato con il formato .xz"
#: src/xz/coder.c:209
msgid "The filter chain is incompatible with --flush-timeout"
msgstr "La catena di filtri non è compatibile con --flush-timeout"
#: src/xz/coder.c:215
msgid "Switching to single-threaded mode due to --flush-timeout"
msgstr "Passaggio a modalità singolo thread poiché viene usato --flush-timeout"
#: src/xz/coder.c:234
#, c-format
msgid "Using up to %<PRIu32> threads."
msgstr "Vengono usati circa %<PRIu32> thread."
#: src/xz/coder.c:247
#: src/xz/coder.c:182
msgid "Unsupported filter chain or filter options"
msgstr "Catena di filtri od opzioni del filtro non supportata"
#: src/xz/coder.c:255
#: src/xz/coder.c:190
#, c-format
msgid "Decompression will need %s MiB of memory."
msgstr "L'estrazione necessita di %s MiB di memoria."
#: src/xz/coder.c:290
#, c-format
msgid ""
"Adjusted the number of threads from %s to %s to not exceed the memory usage "
"limit of %s MiB"
msgstr ""
"Regolato il numero di thread da %s a %s per non eccedere il limite di "
"utilizzo della memoria di %s MiB"
#: src/xz/coder.c:344
#: src/xz/coder.c:247
#, c-format
msgid ""
"Adjusted LZMA%c dictionary size from %s MiB to %s MiB to not exceed the "
@@ -120,16 +82,6 @@ msgstr ""
"Regolata la dimensione del dizionario LZMA%c da %s MiB a %s MiB per non "
"superare il limite dell'uso della memoria di %s MiB"
#: src/xz/file_io.c:90
#, c-format
msgid "Error creating a pipe: %s"
msgstr "Errore nel creare una pipe: %s"
#: src/xz/file_io.c:166
#, c-format
msgid "%s: poll() failed: %s"
msgstr "%s: poll() non riuscita: %s"
#. TRANSLATORS: When compression or decompression finishes,
#. and xz is going to remove the source file, xz first checks
#. if the source file still exists, and if it does, does its
@@ -140,146 +92,119 @@ msgstr "%s: poll() non riuscita: %s"
#. it is possible that the user has put a new file in place
#. of the original file, and in that case it obviously
#. shouldn't be removed.
#: src/xz/file_io.c:236
#: src/xz/file_io.c:137
#, c-format
msgid "%s: File seems to have been moved, not removing"
msgstr "%s: sembra che il file sia stato spostato, non viene rimosso"
#: src/xz/file_io.c:243 src/xz/file_io.c:761
#: src/xz/file_io.c:144 src/xz/file_io.c:590
#, c-format
msgid "%s: Cannot remove: %s"
msgstr "%s: impossibile rimuovere: %s"
#: src/xz/file_io.c:268
#: src/xz/file_io.c:169
#, c-format
msgid "%s: Cannot set the file owner: %s"
msgstr "%s: impossibile impostare il proprietario del file: %s"
#: src/xz/file_io.c:274
#: src/xz/file_io.c:175
#, c-format
msgid "%s: Cannot set the file group: %s"
msgstr "%s: impossibile impostare il gruppo del file: %s"
#: src/xz/file_io.c:293
#: src/xz/file_io.c:194
#, c-format
msgid "%s: Cannot set the file permissions: %s"
msgstr "%s: impossibile impostare i permessi del file: %s"
#: src/xz/file_io.c:399
#, c-format
msgid "Error getting the file status flags from standard input: %s"
msgstr ""
"Errore nel recuperare le flag di stato del file dallo standard input: %s"
#: src/xz/file_io.c:408
#, c-format
msgid "Error setting O_NONBLOCK on standard input: %s"
msgstr "Errore nell'impostare O_NONBLOCK sullo standard input: %s"
#: src/xz/file_io.c:460 src/xz/file_io.c:522
#: src/xz/file_io.c:337 src/xz/file_io.c:420
#, c-format
msgid "%s: Is a symbolic link, skipping"
msgstr "%s: è un collegamento simbolico, viene saltato"
#: src/xz/file_io.c:551
#: src/xz/file_io.c:455
#, c-format
msgid "%s: Is a directory, skipping"
msgstr "%s: è una directory, viene saltata"
#: src/xz/file_io.c:557
#: src/xz/file_io.c:462
#, c-format
msgid "%s: Not a regular file, skipping"
msgstr "%s: non è un file regolare, viene saltato"
#: src/xz/file_io.c:574
#: src/xz/file_io.c:479
#, c-format
msgid "%s: File has setuid or setgid bit set, skipping"
msgstr "%s: il file ha il bit setuid o setgid impostato, viene saltato"
#: src/xz/file_io.c:581
#: src/xz/file_io.c:486
#, c-format
msgid "%s: File has sticky bit set, skipping"
msgstr "%s: il file ha lo sticky bit impostato, viene saltato"
#: src/xz/file_io.c:588
#: src/xz/file_io.c:493
#, c-format
msgid "%s: Input file has more than one hard link, skipping"
msgstr "%s: il file di input ha più di un collegamento fisico, viene saltato"
#: src/xz/file_io.c:668
#, c-format
msgid "Error restoring the status flags to standard input: %s"
msgstr "Errore nel ripristinare le flag di stato sullo standard input: %s"
#: src/xz/file_io.c:714
#, c-format
msgid "Error getting the file status flags from standard output: %s"
msgstr ""
"Errore nel recuperare le flag di stato del file dallo standard output: %s"
#: src/xz/file_io.c:723
#, c-format
msgid "Error setting O_NONBLOCK on standard output: %s"
msgstr "Errore nell'impostare O_NONBLOCK sullo standard output: %s"
#: src/xz/file_io.c:896
#, c-format
msgid "Error restoring the O_APPEND flag to standard output: %s"
msgstr "Errore nel ripristinare la flag O_APPEND sullo standard output: %s"
#: src/xz/file_io.c:908
#: src/xz/file_io.c:726
#, c-format
msgid "%s: Closing the file failed: %s"
msgstr "%s: chiusura del file non riuscita: %s"
#: src/xz/file_io.c:944 src/xz/file_io.c:1170
#: src/xz/file_io.c:762 src/xz/file_io.c:946
#, c-format
msgid "%s: Seeking failed when trying to create a sparse file: %s"
msgstr ""
"%s: posizionamento non riuscito nel tentativo di creare un file sparso: %s"
#: src/xz/file_io.c:1039
#: src/xz/file_io.c:821
#, c-format
msgid "%s: Read error: %s"
msgstr "%s: errore di lettura: %s"
#: src/xz/file_io.c:1059
#: src/xz/file_io.c:844
#, c-format
msgid "%s: Error seeking the file: %s"
msgstr "%s: errore nel cercare il file: %s"
#: src/xz/file_io.c:1069
#: src/xz/file_io.c:854
#, c-format
msgid "%s: Unexpected end of file"
msgstr "%s: fine del file inaspettata"
#: src/xz/file_io.c:1128
#: src/xz/file_io.c:904
#, c-format
msgid "%s: Write error: %s"
msgstr "%s: errore di scrittura: %s"
#: src/xz/hardware.c:107
#: src/xz/hardware.c:100
msgid "Disabled"
msgstr "Disabilitato"
#. TRANSLATORS: Test with "xz --info-memory" to see if
#. the alignment looks nice.
#: src/xz/hardware.c:126
#: src/xz/hardware.c:119
msgid "Total amount of physical memory (RAM): "
msgstr "Quantità totale di memoria fisica (RAM): "
#: src/xz/hardware.c:128
#: src/xz/hardware.c:121
msgid "Memory usage limit for compression: "
msgstr "Limite utilizzo memoria per la compressione: "
#: src/xz/hardware.c:130
#: src/xz/hardware.c:123
msgid "Memory usage limit for decompression: "
msgstr "Limite utilizzo memoria per l'estrazione: "
#. TRANSLATORS: Indicates that there is no integrity check.
#. This string is used in tables, so the width must not
#. exceed ten columns with a fixed-width font.
#: src/xz/list.c:65
#: src/xz/list.c:62
msgid "None"
msgstr "Nessuno"
@@ -287,61 +212,61 @@ msgstr "Nessuno"
#. but the Check ID is known (here 2). This and other "Unknown-N"
#. strings are used in tables, so the width must not exceed ten
#. columns with a fixed-width font. It's OK to omit the dash if
#. you need space for one extra letter, but don't use spaces.
#: src/xz/list.c:72
#. you need space for one extra letter.
#: src/xz/list.c:69
msgid "Unknown-2"
msgstr "Sconosc2"
#: src/xz/list.c:73
#: src/xz/list.c:70
msgid "Unknown-3"
msgstr "Sconosc3"
#: src/xz/list.c:75
#: src/xz/list.c:72
msgid "Unknown-5"
msgstr "Sconosc5"
#: src/xz/list.c:76
#: src/xz/list.c:73
msgid "Unknown-6"
msgstr "Sconosc6"
#: src/xz/list.c:77
#: src/xz/list.c:74
msgid "Unknown-7"
msgstr "Sconosc7"
#: src/xz/list.c:78
#: src/xz/list.c:75
msgid "Unknown-8"
msgstr "Sconosc8"
#: src/xz/list.c:79
#: src/xz/list.c:76
msgid "Unknown-9"
msgstr "Sconosc9"
#: src/xz/list.c:81
#: src/xz/list.c:78
msgid "Unknown-11"
msgstr "Sconosc11"
#: src/xz/list.c:82
#: src/xz/list.c:79
msgid "Unknown-12"
msgstr "Sconosc12"
#: src/xz/list.c:83
#: src/xz/list.c:80
msgid "Unknown-13"
msgstr "Sconosc13"
#: src/xz/list.c:84
#: src/xz/list.c:81
msgid "Unknown-14"
msgstr "Sconosc14"
#: src/xz/list.c:85
#: src/xz/list.c:82
msgid "Unknown-15"
msgstr "Sconosc15"
#: src/xz/list.c:153
#: src/xz/list.c:126
#, c-format
msgid "%s: File is empty"
msgstr "%s: il file è vuoto"
#: src/xz/list.c:158
#: src/xz/list.c:131
#, c-format
msgid "%s: Too small to be a valid .xz file"
msgstr "%s: troppo piccolo per essere un file .xz valido"
@@ -350,41 +275,41 @@ msgstr "%s: troppo piccolo per essere un file .xz valido"
#. to Ratio, the columns are right aligned. Check and Filename
#. are left aligned. If you need longer words, it's OK to
#. use two lines here. Test with "xz -l foo.xz".
#: src/xz/list.c:671
#: src/xz/list.c:612
msgid "Strms Blocks Compressed Uncompressed Ratio Check Filename"
msgstr " Strm Blocc. Compresso Estratto Rapp. Contr Nome file"
#: src/xz/list.c:711
#: src/xz/list.c:652
#, c-format
msgid " Streams: %s\n"
msgstr " Stream: %s\n"
#: src/xz/list.c:713
#: src/xz/list.c:654
#, c-format
msgid " Blocks: %s\n"
msgstr " Blocchi: %s\n"
#: src/xz/list.c:715
#: src/xz/list.c:656
#, c-format
msgid " Compressed size: %s\n"
msgstr " Dim. compresso: %s\n"
#: src/xz/list.c:718
#: src/xz/list.c:659
#, c-format
msgid " Uncompressed size: %s\n"
msgstr " Dim. estratto: %s\n"
#: src/xz/list.c:721
#: src/xz/list.c:662
#, c-format
msgid " Ratio: %s\n"
msgstr " Rapporto: %s\n"
#: src/xz/list.c:723
#: src/xz/list.c:664
#, c-format
msgid " Check: %s\n"
msgstr " Controllo: %s\n"
#: src/xz/list.c:724
#: src/xz/list.c:665
#, c-format
msgid " Stream padding: %s\n"
msgstr " Padding dello stream: %s\n"
@@ -392,7 +317,7 @@ msgstr " Padding dello stream: %s\n"
#. TRANSLATORS: The second line is column headings. All except
#. Check are right aligned; Check is left aligned. Test with
#. "xz -lv foo.xz".
#: src/xz/list.c:752
#: src/xz/list.c:693
msgid ""
" Streams:\n"
" Stream Blocks CompOffset UncompOffset CompSize "
@@ -404,7 +329,7 @@ msgstr ""
#. TRANSLATORS: The second line is column headings. All
#. except Check are right aligned; Check is left aligned.
#: src/xz/list.c:807
#: src/xz/list.c:748
#, c-format
msgid ""
" Blocks:\n"
@@ -422,57 +347,52 @@ msgstr ""
#. are right aligned. %*s is replaced with 0-120
#. spaces to make the CheckVal column wide enough.
#. Test with "xz -lvv foo.xz".
#: src/xz/list.c:819
#: src/xz/list.c:760
#, c-format
msgid " CheckVal %*s Header Flags CompSize MemUsage Filters"
msgstr " Val.cont %*s Header Flag Dim.compr. Uso mem. Filtri"
#: src/xz/list.c:897 src/xz/list.c:1072
#: src/xz/list.c:838 src/xz/list.c:1007
#, c-format
msgid " Memory needed: %s MiB\n"
msgstr " Memoria necessaria: %s MiB\n"
#: src/xz/list.c:899 src/xz/list.c:1074
#: src/xz/list.c:840 src/xz/list.c:1009
#, c-format
msgid " Sizes in headers: %s\n"
msgstr " Dim. negli header: %s\n"
#: src/xz/list.c:900 src/xz/list.c:1075
#: src/xz/list.c:841 src/xz/list.c:1010
msgid "Yes"
msgstr "Sì"
#: src/xz/list.c:900 src/xz/list.c:1075
#: src/xz/list.c:841 src/xz/list.c:1010
msgid "No"
msgstr "No"
#: src/xz/list.c:901 src/xz/list.c:1076
#, c-format
msgid " Minimum XZ Utils version: %s\n"
msgstr " Versione \"XZ Utils\" minima: %s\n"
#. TRANSLATORS: %s is an integer. Only the plural form of this
#. message is used (e.g. "2 files"). Test with "xz -l foo.xz bar.xz".
#: src/xz/list.c:1051
#: src/xz/list.c:986
#, c-format
msgid "%s file\n"
msgid_plural "%s files\n"
msgstr[0] "%s file\n"
msgstr[1] "%s file\n"
#: src/xz/list.c:1064
#: src/xz/list.c:999
msgid "Totals:"
msgstr "Totali:"
#: src/xz/list.c:1065
#: src/xz/list.c:1000
#, c-format
msgid " Number of files: %s\n"
msgstr " Numero di file: %s\n"
#: src/xz/list.c:1140
#: src/xz/list.c:1072
msgid "--list works only on .xz files (--format=xz or --format=auto)"
msgstr "--list funziona solamente con file .xz (--format=xz o --format=auto)"
#: src/xz/list.c:1146
#: src/xz/list.c:1078
msgid "--list does not support reading from standard input"
msgstr "--list non è in grado di leggere dallo standard input"
@@ -507,75 +427,61 @@ msgstr ""
"Impossibile leggere i dati dallo standard input durante la lettura dei nomi "
"dei file dallo standard input"
#. TRANSLATORS: This is the program name in the beginning
#. of the line in messages. Usually it becomes "xz: ".
#. This is a translatable string because French needs
#. a space before a colon.
#: src/xz/message.c:713
#, c-format
msgid "%s: "
msgstr "%s: "
#: src/xz/message.c:776 src/xz/message.c:826
#: src/xz/message.c:800 src/xz/message.c:844
msgid "Internal error (bug)"
msgstr "Errore interno (bug)"
#: src/xz/message.c:783
#: src/xz/message.c:807
msgid "Cannot establish signal handlers"
msgstr "Impossibile stabilire i gestori dei segnali"
#: src/xz/message.c:792
#: src/xz/message.c:816
msgid "No integrity check; not verifying file integrity"
msgstr ""
"Nessun controllo d'integrità; l'integrità del file non viene verificata"
#: src/xz/message.c:795
#: src/xz/message.c:819
msgid "Unsupported type of integrity check; not verifying file integrity"
msgstr ""
"Tipo di controllo di integrità non supportato; l'integrità del file non "
"viene verificata"
#: src/xz/message.c:802
#: src/xz/message.c:826
msgid "Memory usage limit reached"
msgstr "Limite di utilizzo della memoria raggiunto"
#: src/xz/message.c:805
#: src/xz/message.c:829
msgid "File format not recognized"
msgstr "Formato di file non riconosciuto"
#: src/xz/message.c:808
#: src/xz/message.c:832
msgid "Unsupported options"
msgstr "Opzioni non supportate"
#: src/xz/message.c:811
#: src/xz/message.c:835
msgid "Compressed data is corrupt"
msgstr "I dati compressi sono danneggiati"
#: src/xz/message.c:814
#: src/xz/message.c:838
msgid "Unexpected end of input"
msgstr "Fine dell'input non attesa"
#: src/xz/message.c:847
#, c-format
msgid "%s MiB of memory is required. The limiter is disabled."
msgstr "%s MiB di memoria sono richiesti. Il limite è disabilitato."
#: src/xz/message.c:875
#: src/xz/message.c:886
#, c-format
msgid "%s MiB of memory is required. The limit is %s."
msgstr "%s MiB di memoria sono richiesti. Il limite è %s."
#: src/xz/message.c:1042
#: src/xz/message.c:1053
#, c-format
msgid "%s: Filter chain: %s\n"
msgstr "%s: catena di filtri: %s\n"
#: src/xz/message.c:1052
#: src/xz/message.c:1063
#, c-format
msgid "Try `%s --help' for more information."
msgstr "Provare \"%s --help\" per maggiori informazioni."
#: src/xz/message.c:1078
#: src/xz/message.c:1089
#, c-format
msgid ""
"Usage: %s [OPTION]... [FILE]...\n"
@@ -586,18 +492,18 @@ msgstr ""
"Comprime o estrae i FILE nel formato .xz.\n"
"\n"
#: src/xz/message.c:1085
#: src/xz/message.c:1096
msgid ""
"Mandatory arguments to long options are mandatory for short options too.\n"
msgstr ""
"Gli argomenti obbligatori per le opzioni lunghe lo sono anche per quelle "
"brevi.\n"
#: src/xz/message.c:1089
#: src/xz/message.c:1100
msgid " Operation mode:\n"
msgstr " Modalità di operazione:\n"
#: src/xz/message.c:1092
#: src/xz/message.c:1103
msgid ""
" -z, --compress force compression\n"
" -d, --decompress force decompression\n"
@@ -609,7 +515,7 @@ msgstr ""
" -t, --test Verifica l'integrità dei file compressi\n"
" -l, --list Elenca informazioni sui file .xz"
#: src/xz/message.c:1098
#: src/xz/message.c:1109
msgid ""
"\n"
" Operation modifiers:\n"
@@ -617,7 +523,7 @@ msgstr ""
"\n"
" Modificatori di operazioni:\n"
#: src/xz/message.c:1101
#: src/xz/message.c:1112
msgid ""
" -k, --keep keep (don't delete) input files\n"
" -f, --force force overwrite of output file and (de)compress links\n"
@@ -630,15 +536,7 @@ msgstr ""
" -c, --stdout Scrive sullo standard output e non elimina i file di "
"input"
#: src/xz/message.c:1107
msgid ""
" --single-stream decompress only the first stream, and silently\n"
" ignore possible remaining input data"
msgstr ""
" --single-stream Decomprime solamente il primo stream e ignora\n"
" silenziosamente i restanti dati di input"
#: src/xz/message.c:1110
#: src/xz/message.c:1118
msgid ""
" --no-sparse do not create sparse files when decompressing\n"
" -S, --suffix=.SUF use the suffix `.SUF' on compressed files\n"
@@ -658,7 +556,7 @@ msgstr ""
" di newline\n"
" --files0=[FILE] Come --files ma usa il carattere null come terminatore"
#: src/xz/message.c:1119
#: src/xz/message.c:1126
msgid ""
"\n"
" Basic file format and compression options:\n"
@@ -666,7 +564,7 @@ msgstr ""
"\n"
" Formato file di base e opzioni di compressione:\n"
#: src/xz/message.c:1121
#: src/xz/message.c:1128
msgid ""
" -F, --format=FMT file format to encode or decode; possible values are\n"
" `auto' (default), `xz', `lzma', and `raw'\n"
@@ -681,18 +579,12 @@ msgstr ""
"attenzione),\n"
" \"crc32\", \"crc64\" (predefinito) o \"sha256\""
#: src/xz/message.c:1126
msgid ""
" --ignore-check don't verify the integrity check when decompressing"
msgstr ""
" --ignore-check Non verifica il codice di integrità quando decomprime"
#: src/xz/message.c:1130
#: src/xz/message.c:1135
msgid ""
" -0 ... -9 compression preset; default is 6; take compressor "
"*and*\n"
" decompressor memory usage into account before using "
"7-9!"
" decompressor memory usage into account before using 7-"
"9!"
msgstr ""
" -0 ... -9 Preset di compressione; predefinito è 6; tenere a "
"mente\n"
@@ -700,7 +592,7 @@ msgstr ""
"prima\n"
" di usare 7-9"
#: src/xz/message.c:1134
#: src/xz/message.c:1139
msgid ""
" -e, --extreme try to improve compression ratio by using more CPU "
"time;\n"
@@ -711,59 +603,7 @@ msgstr ""
"di\n"
" memoria in fase di estrazione"
#: src/xz/message.c:1138
msgid ""
" -T, --threads=NUM use at most NUM threads; the default is 1; set to 0\n"
" to use as many threads as there are processor cores"
msgstr ""
" -T, --threads=NUM Usa al massimo NUM thread: il valore predefinito è 1,\n"
" impostare a 0 per usare tanti thread quanti core la "
"CPU\n"
" ha a disposizione"
#: src/xz/message.c:1143
msgid ""
" --block-size=SIZE\n"
" start a new .xz block after every SIZE bytes of "
"input;\n"
" use this to set the block size for threaded compression"
msgstr ""
" --block-size=DIM\n"
" Avvia un nuovo blocco .xz dopo ogni DIM byte di "
"input:\n"
" usare per impostare la dimensione del blocco durante "
"la\n"
" compressione con thread"
#: src/xz/message.c:1147
msgid ""
" --block-list=SIZES\n"
" start a new .xz block after the given comma-separated\n"
" intervals of uncompressed data"
msgstr ""
" --block-list=DIM\n"
" Avvia un nuovo blocco .xz dopo gli intervalli, "
"sperati\n"
" da virgole, di dati non compressi"
#: src/xz/message.c:1151
msgid ""
" --flush-timeout=TIMEOUT\n"
" when compressing, if more than TIMEOUT milliseconds "
"has\n"
" passed since the previous flush and reading more "
"input\n"
" would block, all pending data is flushed out"
msgstr ""
" --flush-timeout=TIMEOUT\n"
" Durante la compressione, se sono passati più di "
"TIMEOUT\n"
" millisecondi dal flush precedente e la lettura di\n"
" ulteriore input risulterebbe bloccata, viene eseguito "
"il\n"
" flush di tutti i dati pendenti"
#: src/xz/message.c:1157
#: src/xz/message.c:1144
#, no-c-format
msgid ""
" --memlimit-compress=LIMIT\n"
@@ -781,7 +621,7 @@ msgstr ""
"byte,\n"
" % della memoria RAM oppure 0 per il valore predefinito"
#: src/xz/message.c:1164
#: src/xz/message.c:1151
msgid ""
" --no-adjust if compression settings exceed the memory usage "
"limit,\n"
@@ -793,7 +633,7 @@ msgstr ""
" utilizzo della memoria, lancia un errore invece di\n"
" utilizzare valori più piccoli"
#: src/xz/message.c:1170
#: src/xz/message.c:1157
msgid ""
"\n"
" Custom filter chain for compression (alternative for using presets):"
@@ -802,7 +642,7 @@ msgstr ""
" Catena di filtri personalizzati per la compressione (alternative per\n"
" l'utilizzo di preset):"
#: src/xz/message.c:1179
#: src/xz/message.c:1166
msgid ""
"\n"
" --lzma1[=OPTS] LZMA1 or LZMA2; OPTS is a comma-separated list of zero "
@@ -826,14 +666,14 @@ msgstr ""
"zero\n"
" --lzma2[=OPZ] o più delle seguenti opzioni (valori validi; "
"predefinito):\n"
" preset=NUM Reimposta le opzioni al preset NUM "
"(0-9[e])\n"
" preset=NUM Reimposta le opzioni al preset NUM (0-9"
"[e])\n"
" dict=NUM Dimensione del dizionario\n"
" (4KiB - 1536MiB; 8MiB)\n"
" lc=NUM Numero di bit letterali di contesto (0-4; "
"3)\n"
" lp=NUM Numero di bit letterali di posizione "
"(0-4; 0)\n"
" lp=NUM Numero di bit letterali di posizione (0-"
"4; 0)\n"
" pb=NUM Numero di bit di posizione (0-4; 2)\n"
" mode=MODE Modalità di compressione\n"
" (fast, normal; normal)\n"
@@ -845,7 +685,7 @@ msgstr ""
"0=automatica\n"
" (predefinito)"
#: src/xz/message.c:1194
#: src/xz/message.c:1181
msgid ""
"\n"
" --x86[=OPTS] x86 BCJ filter (32-bit and 64-bit)\n"
@@ -868,7 +708,7 @@ msgstr ""
" start=NUM Offset iniziale per le conversioni\n"
" (predefinito=0)"
#: src/xz/message.c:1206
#: src/xz/message.c:1193
msgid ""
"\n"
" --delta[=OPTS] Delta filter; valid OPTS (valid values; default):\n"
@@ -880,7 +720,7 @@ msgstr ""
" dist=NUM Distanza tra byte sottratti\n"
" gli uni dagli altri (1-256; 1)"
#: src/xz/message.c:1214
#: src/xz/message.c:1201
msgid ""
"\n"
" Other options:\n"
@@ -888,7 +728,7 @@ msgstr ""
"\n"
" Altre opzioni:\n"
#: src/xz/message.c:1217
#: src/xz/message.c:1204
msgid ""
" -q, --quiet suppress warnings; specify twice to suppress errors "
"too\n"
@@ -901,16 +741,16 @@ msgstr ""
"ancora\n"
" più prolisso"
#: src/xz/message.c:1222
#: src/xz/message.c:1209
msgid " -Q, --no-warn make warnings not affect the exit status"
msgstr " -Q, --no-warn Gli avvisi non influenzano lo stato d'uscita"
#: src/xz/message.c:1224
#: src/xz/message.c:1211
msgid ""
" --robot use machine-parsable messages (useful for scripts)"
msgstr " --robot Usa messaggi analizzabili (utile per gli script)"
#: src/xz/message.c:1227
#: src/xz/message.c:1214
msgid ""
" --info-memory display the total amount of RAM and the currently "
"active\n"
@@ -920,7 +760,7 @@ msgstr ""
"attuale\n"
" attivo di utilizzo della memore ed esce"
#: src/xz/message.c:1230
#: src/xz/message.c:1217
msgid ""
" -h, --help display the short help (lists only the basic options)\n"
" -H, --long-help display this long help and exit"
@@ -928,7 +768,7 @@ msgstr ""
" -h, --help Stampa l'aiuto breve (elenca solo le opzioni di base)\n"
" -H, --long-help Stampa questo lungo aiuto ed esce"
#: src/xz/message.c:1234
#: src/xz/message.c:1221
msgid ""
" -h, --help display this short help and exit\n"
" -H, --long-help display the long help (lists also the advanced options)"
@@ -936,11 +776,11 @@ msgstr ""
" -h, --help Stampa questo breve aiuto ed esce\n"
" -H, --long-help Stampa l'aiuto lungo (elenca anche le opzioni avanzate)"
#: src/xz/message.c:1239
#: src/xz/message.c:1226
msgid " -V, --version display the version number and exit"
msgstr " -V, --version Stampa il numero della versione ed esce"
#: src/xz/message.c:1241
#: src/xz/message.c:1228
msgid ""
"\n"
"With no FILE, or when FILE is -, read standard input.\n"
@@ -952,23 +792,18 @@ msgstr ""
#. for this package. Please add _another line_ saying
#. "Report translation bugs to <...>\n" with the email or WWW
#. address for translation bugs. Thanks.
#: src/xz/message.c:1247
#: src/xz/message.c:1234
#, c-format
msgid "Report bugs to <%s> (in English or Finnish).\n"
msgstr ""
"Segnalare i bug a <%s> (in inglese o finlandese).\n"
"Segnalare i bug di traduzione a <tp@lists.linux.it>.\n"
#: src/xz/message.c:1249
#: src/xz/message.c:1236
#, c-format
msgid "%s home page: <%s>\n"
msgstr "Sito web di %s: <%s>\n"
#: src/xz/message.c:1253
msgid "THIS IS A DEVELOPMENT VERSION NOT INTENDED FOR PRODUCTION USE."
msgstr ""
"Questa è una versione di sviluppo non adatta per utilizzi in produzione."
#: src/xz/options.c:86
#, c-format
msgid "%s: Options must be `name=value' pairs separated with commas"
@@ -998,10 +833,10 @@ msgstr "La somma di lc e lp non deve superare 4"
#, c-format
msgid "The selected match finder requires at least nice=%<PRIu32>"
msgstr ""
"Lo strumento per cercare corrispondenze selezionato richiede almeno nice="
"%<PRIu32>"
"Lo strumento per cercare corrispondenze selezionato richiede almeno nice=%"
"<PRIu32>"
#: src/xz/suffix.c:133 src/xz/suffix.c:258
#: src/xz/suffix.c:79 src/xz/suffix.c:164
#, c-format
msgid ""
"%s: With --format=raw, --suffix=.SUF is required unless writing to stdout"
@@ -1009,52 +844,52 @@ msgstr ""
"%s: con --format=raw, --suffix=.SUF è richiesto a meno che non si scriva "
"sullo stdout"
#: src/xz/suffix.c:164
#: src/xz/suffix.c:99
#, c-format
msgid "%s: Filename has an unknown suffix, skipping"
msgstr "%s: il nome del file ha un suffisso sconosciuto, viene saltato"
#: src/xz/suffix.c:185
#: src/xz/suffix.c:154
#, c-format
msgid "%s: File already has `%s' suffix, skipping"
msgstr "%s: il file ha già il suffisso \"%s\", viene saltato"
#: src/xz/suffix.c:393
#: src/xz/suffix.c:205
#, c-format
msgid "%s: Invalid filename suffix"
msgstr "%s: suffisso del nome del file non valido"
#: src/xz/util.c:71
#: src/xz/util.c:61
#, c-format
msgid "%s: Value is not a non-negative decimal integer"
msgstr "%s: il valore non è un numero intero decimale non-negativo"
#: src/xz/util.c:113
#: src/xz/util.c:103
#, c-format
msgid "%s: Invalid multiplier suffix"
msgstr "%s: suffisso del moltiplicatore non valido"
#: src/xz/util.c:115
#: src/xz/util.c:105
msgid "Valid suffixes are `KiB' (2^10), `MiB' (2^20), and `GiB' (2^30)."
msgstr ""
"I suffissi validi sono \"KiB\" (2^10), \"MiB\" (2^20), e \"GiB\" (2^30)."
#: src/xz/util.c:132
#: src/xz/util.c:122
#, c-format
msgid "Value of the option `%s' must be in the range [%<PRIu64>, %<PRIu64>]"
msgstr ""
"Il valore dell'opzione \"%s\" deve essere nell'intervallo [%<PRIu64>, "
"%<PRIu64>]"
"Il valore dell'opzione \"%s\" deve essere nell'intervallo [%<PRIu64>, %"
"<PRIu64>]"
#: src/xz/util.c:257
#: src/xz/util.c:247
msgid "Empty filename, skipping"
msgstr "Nome file vuoto, viene saltato"
#: src/xz/util.c:271
#: src/xz/util.c:261
msgid "Compressed data cannot be read from a terminal"
msgstr "I dati compressi non possono essere letti da un terminale"
#: src/xz/util.c:284
#: src/xz/util.c:274
msgid "Compressed data cannot be written to a terminal"
msgstr "I dati compressi non possono essere scritti ad un terminale"

389
po/pl.po
View File

@@ -1,13 +1,13 @@
# Polish translation for xz.
# This file is in the public domain.
# Jakub Bogusz <qboosh@pld-linux.org>, 2011-2014.
# Jakub Bogusz <qboosh@pld-linux.org>, 2011.
#
msgid ""
msgstr ""
"Project-Id-Version: xz 5.1.4\n"
"Project-Id-Version: xz 5.0.1\n"
"Report-Msgid-Bugs-To: lasse.collin@tukaani.org\n"
"POT-Creation-Date: 2014-09-14 21:56+0300\n"
"PO-Revision-Date: 2014-10-15 20:53+0200\n"
"POT-Creation-Date: 2011-01-28 20:01+0200\n"
"PO-Revision-Date: 2011-02-02 16:51+0100\n"
"Last-Translator: Jakub Bogusz <qboosh@pld-linux.org>\n"
"Language-Team: Polish <translation-team-pl@lists.sourceforge.net>\n"
"Language: pl\n"
@@ -16,105 +16,63 @@ msgstr ""
"Content-Transfer-Encoding: 8bit\n"
"Plural-Forms: nplurals=3; plural=n==1 ? 0 : n%10>=2 && n%10<=4 && (n%100<10 || n%100>=20) ? 1 : 2;\n"
#: src/xz/args.c:63
#, c-format
msgid "%s: Invalid argument to --block-list"
msgstr "%s: Błędny argument dla --block-list"
#: src/xz/args.c:73
#, c-format
msgid "%s: Too many arguments to --block-list"
msgstr "%s: Zbyt dużo argumentów dla --block-list"
#: src/xz/args.c:102
msgid "0 can only be used as the last element in --block-list"
msgstr "0 w --block-list może być użyte wyłącznie jako ostatni element"
#: src/xz/args.c:406
#: src/xz/args.c:333
#, c-format
msgid "%s: Unknown file format type"
msgstr "%s: Nieznany typ formatu pliku"
#: src/xz/args.c:429 src/xz/args.c:437
#: src/xz/args.c:356 src/xz/args.c:364
#, c-format
msgid "%s: Unsupported integrity check type"
msgstr "%s: Nieobsługiwany typ kontroli spójności"
#: src/xz/args.c:473
#: src/xz/args.c:382
msgid "Only one file can be specified with `--files' or `--files0'."
msgstr "Wraz z opcją `--files' lub `--files0' można podać tylko jeden plik."
#: src/xz/args.c:541
#: src/xz/args.c:445
#, c-format
msgid "The environment variable %s contains too many arguments"
msgstr "Zmienna środowiskowa %s zawiera zbyt dużo argumentów"
#: src/xz/coder.c:110
#: src/xz/coder.c:95
msgid "Maximum number of filters is four"
msgstr "Maksymalna liczba filtrów to cztery"
#: src/xz/coder.c:129
#: src/xz/coder.c:108
msgid "Memory usage limit is too low for the given filter setup."
msgstr "Limit użycia pamięci jest zbyt mały dla podanej konfiguracji filtra."
#: src/xz/coder.c:159
#: src/xz/coder.c:129
msgid "Using a preset in raw mode is discouraged."
msgstr "Użycie ustawień predefiniowanych w trybie surowym jest odradzane."
#: src/xz/coder.c:161
#: src/xz/coder.c:131
msgid "The exact options of the presets may vary between software versions."
msgstr "Dokładne opcje ustawień predefiniowanych mogą różnić się między wersjami oprogramowania."
#: src/xz/coder.c:184
#: src/xz/coder.c:157
msgid "The .lzma format supports only the LZMA1 filter"
msgstr "Format .lzma obsługuje tylko filtr LZMA1"
#: src/xz/coder.c:192
#: src/xz/coder.c:165
msgid "LZMA1 cannot be used with the .xz format"
msgstr "LZMA1 nie może być używany z formatem .xz"
#: src/xz/coder.c:209
msgid "The filter chain is incompatible with --flush-timeout"
msgstr "Łańcuch filtrów jest niezgodny z --flush-timeout"
#: src/xz/coder.c:215
msgid "Switching to single-threaded mode due to --flush-timeout"
msgstr "Przełączanie w tryb jednowątkowy z powodu --flush-timeout"
#: src/xz/coder.c:234
#, c-format
msgid "Using up to %<PRIu32> threads."
msgstr "Maksymalna liczba używanych wątków: %<PRIu32>."
#: src/xz/coder.c:247
#: src/xz/coder.c:182
msgid "Unsupported filter chain or filter options"
msgstr "Nieobsługiwany łańcuch filtrów lub opcje filtra"
#: src/xz/coder.c:255
#: src/xz/coder.c:190
#, c-format
msgid "Decompression will need %s MiB of memory."
msgstr "Dekompresja będzie wymagała %s MiB pamięci."
#: src/xz/coder.c:290
#, c-format
msgid "Adjusted the number of threads from %s to %s to not exceed the memory usage limit of %s MiB"
msgstr "Skorygowano liczbę wątków z %s do %s, aby nie przekroczyć limitu użycia pamięci %s MiB"
#: src/xz/coder.c:344
#: src/xz/coder.c:247
#, c-format
msgid "Adjusted LZMA%c dictionary size from %s MiB to %s MiB to not exceed the memory usage limit of %s MiB"
msgstr "Skorygowano rozmiar słownika LZMA%c z %s MiB do %s MiB aby nie przekroczyć limitu użycia pamięci %s MiB"
#: src/xz/file_io.c:90
#, c-format
msgid "Error creating a pipe: %s"
msgstr "Błąd tworzenia potoku: %s"
#: src/xz/file_io.c:166
#, c-format
msgid "%s: poll() failed: %s"
msgstr "%s: poll() nie powiodło się: %s"
#. TRANSLATORS: When compression or decompression finishes,
#. and xz is going to remove the source file, xz first checks
#. if the source file still exists, and if it does, does its
@@ -125,143 +83,118 @@ msgstr "%s: poll() nie powiodło się: %s"
#. it is possible that the user has put a new file in place
#. of the original file, and in that case it obviously
#. shouldn't be removed.
#: src/xz/file_io.c:236
#: src/xz/file_io.c:137
#, c-format
msgid "%s: File seems to have been moved, not removing"
msgstr "%s: Plik wygląda na przeniesiony, nie zostanie usunięty"
#: src/xz/file_io.c:243 src/xz/file_io.c:761
#: src/xz/file_io.c:144 src/xz/file_io.c:589
#, c-format
msgid "%s: Cannot remove: %s"
msgstr "%s: Nie można usunąć: %s"
#: src/xz/file_io.c:268
#: src/xz/file_io.c:169
#, c-format
msgid "%s: Cannot set the file owner: %s"
msgstr "%s: Nie można ustawić właściciela pliku: %s"
#: src/xz/file_io.c:274
#: src/xz/file_io.c:175
#, c-format
msgid "%s: Cannot set the file group: %s"
msgstr "%s: Nie można ustawić grupy pliku: %s"
#: src/xz/file_io.c:293
#: src/xz/file_io.c:194
#, c-format
msgid "%s: Cannot set the file permissions: %s"
msgstr "%s: Nie można ustawić uprawnień pliku: %s"
#: src/xz/file_io.c:399
#, c-format
msgid "Error getting the file status flags from standard input: %s"
msgstr "Błąd podczas pobierania flag stanu pliku ze standardowego wejścia: %s"
#: src/xz/file_io.c:408
#, c-format
msgid "Error setting O_NONBLOCK on standard input: %s"
msgstr "Błąd podczas ustawiania O_NONBLOCK dla standardowego wejścia: %s"
#: src/xz/file_io.c:460 src/xz/file_io.c:522
#: src/xz/file_io.c:337 src/xz/file_io.c:420
#, c-format
msgid "%s: Is a symbolic link, skipping"
msgstr "%s: Jest dowiązaniem symbolicznym, pominięto"
#: src/xz/file_io.c:551
#: src/xz/file_io.c:455
#, c-format
msgid "%s: Is a directory, skipping"
msgstr "%s: Jest katalogiem, pominięto"
#: src/xz/file_io.c:557
#: src/xz/file_io.c:461
#, c-format
msgid "%s: Not a regular file, skipping"
msgstr "%s: Nie jest zwykłym plikiem, pominięto"
#: src/xz/file_io.c:574
#: src/xz/file_io.c:478
#, c-format
msgid "%s: File has setuid or setgid bit set, skipping"
msgstr "%s: Plik ma ustawiony bit setuid lub setgid, pominięto"
#: src/xz/file_io.c:581
#: src/xz/file_io.c:485
#, c-format
msgid "%s: File has sticky bit set, skipping"
msgstr "%s: Plik ma ustawiony bit sticky, pominięto"
#: src/xz/file_io.c:588
#: src/xz/file_io.c:492
#, c-format
msgid "%s: Input file has more than one hard link, skipping"
msgstr "%s: Plik wejściowy ma więcej niż jedno dowiązanie zwykłe, pominięto"
#: src/xz/file_io.c:668
#, c-format
msgid "Error restoring the status flags to standard input: %s"
msgstr "Błąd podczas odtwarzania flag stanu dla standardowego wejścia: %s"
#: src/xz/file_io.c:714
#, c-format
msgid "Error getting the file status flags from standard output: %s"
msgstr "Błąd podczas pobierania flag stanu pliku ze standardowego wyjścia: %s"
#: src/xz/file_io.c:723
#, c-format
msgid "Error setting O_NONBLOCK on standard output: %s"
msgstr "Błąd podczas ustawiania O_NONBLOCK dla standardowego wyjścia: %s"
#: src/xz/file_io.c:896
#: src/xz/file_io.c:713
#, c-format
msgid "Error restoring the O_APPEND flag to standard output: %s"
msgstr "Błąd podczas odtwarzania flagi O_APPEND dla standardowego wyjścia: %s"
#: src/xz/file_io.c:908
#: src/xz/file_io.c:725
#, c-format
msgid "%s: Closing the file failed: %s"
msgstr "%s: Zamknięcie pliku nie powiodło się: %s"
#: src/xz/file_io.c:944 src/xz/file_io.c:1170
#: src/xz/file_io.c:761 src/xz/file_io.c:945
#, c-format
msgid "%s: Seeking failed when trying to create a sparse file: %s"
msgstr "%s: Zmiana pozycji nie powiodła się podczas próby utworzenia pliku rzadkiego: %s"
#: src/xz/file_io.c:1039
#: src/xz/file_io.c:820
#, c-format
msgid "%s: Read error: %s"
msgstr "%s: Błąd odczytu: %s"
#: src/xz/file_io.c:1059
#: src/xz/file_io.c:843
#, c-format
msgid "%s: Error seeking the file: %s"
msgstr "%s: Błąd podczas zmiany pozycji w pliku: %s"
#: src/xz/file_io.c:1069
#: src/xz/file_io.c:853
#, c-format
msgid "%s: Unexpected end of file"
msgstr "%s: Nieoczekiwany koniec pliku"
#: src/xz/file_io.c:1128
#: src/xz/file_io.c:903
#, c-format
msgid "%s: Write error: %s"
msgstr "%s: Błąd zapisu: %s"
#: src/xz/hardware.c:107
#: src/xz/hardware.c:100
msgid "Disabled"
msgstr "Wyłączony"
#. TRANSLATORS: Test with "xz --info-memory" to see if
#. the alignment looks nice.
#: src/xz/hardware.c:126
#: src/xz/hardware.c:119
msgid "Total amount of physical memory (RAM): "
msgstr "Całkowita ilość pamięci fizycznej (RAM): "
#: src/xz/hardware.c:128
#: src/xz/hardware.c:121
msgid "Memory usage limit for compression: "
msgstr "Limit użycia pamięci dla kompresji: "
#: src/xz/hardware.c:130
#: src/xz/hardware.c:123
msgid "Memory usage limit for decompression: "
msgstr "Limit użycia pamięci dla dekompresji: "
#. TRANSLATORS: Indicates that there is no integrity check.
#. This string is used in tables, so the width must not
#. exceed ten columns with a fixed-width font.
#: src/xz/list.c:65
#: src/xz/list.c:62
msgid "None"
msgstr "Brak"
@@ -270,60 +203,60 @@ msgstr "Brak"
#. strings are used in tables, so the width must not exceed ten
#. columns with a fixed-width font. It's OK to omit the dash if
#. you need space for one extra letter, but don't use spaces.
#: src/xz/list.c:72
#: src/xz/list.c:69
msgid "Unknown-2"
msgstr "Nieznany-2"
#: src/xz/list.c:73
#: src/xz/list.c:70
msgid "Unknown-3"
msgstr "Nieznany-3"
#: src/xz/list.c:75
#: src/xz/list.c:72
msgid "Unknown-5"
msgstr "Nieznany-5"
#: src/xz/list.c:76
#: src/xz/list.c:73
msgid "Unknown-6"
msgstr "Nieznany-6"
#: src/xz/list.c:77
#: src/xz/list.c:74
msgid "Unknown-7"
msgstr "Nieznany-7"
#: src/xz/list.c:78
#: src/xz/list.c:75
msgid "Unknown-8"
msgstr "Nieznany-8"
#: src/xz/list.c:79
#: src/xz/list.c:76
msgid "Unknown-9"
msgstr "Nieznany-9"
#: src/xz/list.c:81
#: src/xz/list.c:78
msgid "Unknown-11"
msgstr "Nieznany11"
#: src/xz/list.c:82
#: src/xz/list.c:79
msgid "Unknown-12"
msgstr "Nieznany12"
#: src/xz/list.c:83
#: src/xz/list.c:80
msgid "Unknown-13"
msgstr "Nieznany13"
#: src/xz/list.c:84
#: src/xz/list.c:81
msgid "Unknown-14"
msgstr "Nieznany14"
#: src/xz/list.c:85
#: src/xz/list.c:82
msgid "Unknown-15"
msgstr "Nieznany15"
#: src/xz/list.c:153
#: src/xz/list.c:126
#, c-format
msgid "%s: File is empty"
msgstr "%s: Plik jest pusty"
#: src/xz/list.c:158
#: src/xz/list.c:131
#, c-format
msgid "%s: Too small to be a valid .xz file"
msgstr "%s: Za mały na poprawny plik .xz"
@@ -332,41 +265,41 @@ msgstr "%s: Za mały na poprawny plik .xz"
#. to Ratio, the columns are right aligned. Check and Filename
#. are left aligned. If you need longer words, it's OK to
#. use two lines here. Test with "xz -l foo.xz".
#: src/xz/list.c:671
#: src/xz/list.c:612
msgid "Strms Blocks Compressed Uncompressed Ratio Check Filename"
msgstr "Strum. Bloki Spakowany Rozpakowany Wsp. Kontrola Nazwa pliku"
#: src/xz/list.c:711
#: src/xz/list.c:652
#, c-format
msgid " Streams: %s\n"
msgstr " Strumienie: %s\n"
#: src/xz/list.c:713
#: src/xz/list.c:654
#, c-format
msgid " Blocks: %s\n"
msgstr " Bloki: %s\n"
#: src/xz/list.c:715
#: src/xz/list.c:656
#, c-format
msgid " Compressed size: %s\n"
msgstr " Rozmiar spakowany: %s\n"
#: src/xz/list.c:718
#: src/xz/list.c:659
#, c-format
msgid " Uncompressed size: %s\n"
msgstr " Rozmiar rozpakowany: %s\n"
#: src/xz/list.c:721
#: src/xz/list.c:662
#, c-format
msgid " Ratio: %s\n"
msgstr " Współczynnik: %s\n"
#: src/xz/list.c:723
#: src/xz/list.c:664
#, c-format
msgid " Check: %s\n"
msgstr " Kontrola spójności: %s\n"
#: src/xz/list.c:724
#: src/xz/list.c:665
#, c-format
msgid " Stream padding: %s\n"
msgstr " Wyrównanie strumienia: %s\n"
@@ -374,7 +307,7 @@ msgstr " Wyrównanie strumienia: %s\n"
#. TRANSLATORS: The second line is column headings. All except
#. Check are right aligned; Check is left aligned. Test with
#. "xz -lv foo.xz".
#: src/xz/list.c:752
#: src/xz/list.c:693
msgid ""
" Streams:\n"
" Stream Blocks CompOffset UncompOffset CompSize UncompSize Ratio Check Padding"
@@ -384,7 +317,7 @@ msgstr ""
#. TRANSLATORS: The second line is column headings. All
#. except Check are right aligned; Check is left aligned.
#: src/xz/list.c:807
#: src/xz/list.c:748
#, c-format
msgid ""
" Blocks:\n"
@@ -400,37 +333,32 @@ msgstr ""
#. are right aligned. %*s is replaced with 0-120
#. spaces to make the CheckVal column wide enough.
#. Test with "xz -lvv foo.xz".
#: src/xz/list.c:819
#: src/xz/list.c:760
#, c-format
msgid " CheckVal %*s Header Flags CompSize MemUsage Filters"
msgstr " S.kontr. %*sNagłówek Flagi Rozm. spak. Uż.pamięci Filtry"
#: src/xz/list.c:897 src/xz/list.c:1072
#: src/xz/list.c:838 src/xz/list.c:1007
#, c-format
msgid " Memory needed: %s MiB\n"
msgstr " Wymagana pamięć: %s MiB\n"
#: src/xz/list.c:899 src/xz/list.c:1074
#: src/xz/list.c:840 src/xz/list.c:1009
#, c-format
msgid " Sizes in headers: %s\n"
msgstr " Rozmiar w nagłówkach: %s\n"
#: src/xz/list.c:900 src/xz/list.c:1075
#: src/xz/list.c:841 src/xz/list.c:1010
msgid "Yes"
msgstr "Tak"
#: src/xz/list.c:900 src/xz/list.c:1075
#: src/xz/list.c:841 src/xz/list.c:1010
msgid "No"
msgstr "Nie"
#: src/xz/list.c:901 src/xz/list.c:1076
#, c-format
msgid " Minimum XZ Utils version: %s\n"
msgstr " Minimalna wersja XZ Utils: %s\n"
#. TRANSLATORS: %s is an integer. Only the plural form of this
#. message is used (e.g. "2 files"). Test with "xz -l foo.xz bar.xz".
#: src/xz/list.c:1051
#: src/xz/list.c:986
#, c-format
msgid "%s file\n"
msgid_plural "%s files\n"
@@ -438,20 +366,20 @@ msgstr[0] "%s plik\n"
msgstr[1] "%s pliki\n"
msgstr[2] "%s plików\n"
#: src/xz/list.c:1064
#: src/xz/list.c:999
msgid "Totals:"
msgstr "Sumarycznie:"
#: src/xz/list.c:1065
#: src/xz/list.c:1000
#, c-format
msgid " Number of files: %s\n"
msgstr " Liczba plików: %s\n"
#: src/xz/list.c:1140
#: src/xz/list.c:1072
msgid "--list works only on .xz files (--format=xz or --format=auto)"
msgstr "--list działa tylko z plikami .xz (--format=xz lub --format=auto)"
#: src/xz/list.c:1146
#: src/xz/list.c:1078
msgid "--list does not support reading from standard input"
msgstr "--list nie obsługuje odczytu ze standardowego wejścia"
@@ -478,72 +406,58 @@ msgstr "Kompresja i dekompresja z opcją --robot nie jest jeszcze obsługiwana."
msgid "Cannot read data from standard input when reading filenames from standard input"
msgstr "Nie można odczytać danych ze standardowego wejścia przy czytaniu nazw plików ze standardowego wejścia"
#. TRANSLATORS: This is the program name in the beginning
#. of the line in messages. Usually it becomes "xz: ".
#. This is a translatable string because French needs
#. a space before a colon.
#: src/xz/message.c:713
#, c-format
msgid "%s: "
msgstr "%s: "
#: src/xz/message.c:776 src/xz/message.c:826
#: src/xz/message.c:792 src/xz/message.c:842
msgid "Internal error (bug)"
msgstr "Błąd wewnętrzny"
#: src/xz/message.c:783
#: src/xz/message.c:799
msgid "Cannot establish signal handlers"
msgstr "Nie można ustawić obsługi sygnałów"
#: src/xz/message.c:792
#: src/xz/message.c:808
msgid "No integrity check; not verifying file integrity"
msgstr "Brak kontroli spójności; poprawność plików nie będzie weryfikowana"
#: src/xz/message.c:795
#: src/xz/message.c:811
msgid "Unsupported type of integrity check; not verifying file integrity"
msgstr "Nieobsługiwany typ kontroli spójności; poprawność plików nie będzie weryfikowana"
#: src/xz/message.c:802
#: src/xz/message.c:818
msgid "Memory usage limit reached"
msgstr "Osiągnięto limit użycia pamięci"
#: src/xz/message.c:805
#: src/xz/message.c:821
msgid "File format not recognized"
msgstr "Nie rozpoznany format pliku"
#: src/xz/message.c:808
#: src/xz/message.c:824
msgid "Unsupported options"
msgstr "Nieobsługiwane opcje"
#: src/xz/message.c:811
#: src/xz/message.c:827
msgid "Compressed data is corrupt"
msgstr "Dane skompresowane są uszkodzone"
#: src/xz/message.c:814
#: src/xz/message.c:830
msgid "Unexpected end of input"
msgstr "Nieoczekiwany koniec wejścia"
#: src/xz/message.c:847
#, c-format
msgid "%s MiB of memory is required. The limiter is disabled."
msgstr "Wymagane jest %s MiB pamięci. Limit jest wyłączony."
#: src/xz/message.c:875
#: src/xz/message.c:881
#, c-format
msgid "%s MiB of memory is required. The limit is %s."
msgstr "Wymagane jest %s MiB pamięci. Limit to %s."
#: src/xz/message.c:1042
#: src/xz/message.c:1048
#, c-format
msgid "%s: Filter chain: %s\n"
msgstr "%s: Łańcuch filtrów: %s\n"
#: src/xz/message.c:1052
#: src/xz/message.c:1058
#, c-format
msgid "Try `%s --help' for more information."
msgstr "Polecenie `%s --help' pokaże więcej informacji."
#: src/xz/message.c:1078
#: src/xz/message.c:1084
#, c-format
msgid ""
"Usage: %s [OPTION]... [FILE]...\n"
@@ -554,17 +468,17 @@ msgstr ""
"Kompresja lub dekompresja PLIKÓW w formacie .xz.\n"
"\n"
#: src/xz/message.c:1085
#: src/xz/message.c:1091
msgid "Mandatory arguments to long options are mandatory for short options too.\n"
msgstr ""
"Argumenty obowiązkowe dla opcji długich są obowiązkowe również dla opcji\n"
"krótkich.\n"
#: src/xz/message.c:1089
#: src/xz/message.c:1095
msgid " Operation mode:\n"
msgstr " Tryb pracy:\n"
#: src/xz/message.c:1092
#: src/xz/message.c:1098
msgid ""
" -z, --compress force compression\n"
" -d, --decompress force decompression\n"
@@ -576,7 +490,7 @@ msgstr ""
" -t, --test sprawdzenie spójności plików skompresowanych\n"
" -l, --list wypisanie informacji o plikach .xz"
#: src/xz/message.c:1098
#: src/xz/message.c:1104
msgid ""
"\n"
" Operation modifiers:\n"
@@ -584,7 +498,7 @@ msgstr ""
"\n"
" Modyfikatory operacji:\n"
#: src/xz/message.c:1101
#: src/xz/message.c:1107
msgid ""
" -k, --keep keep (don't delete) input files\n"
" -f, --force force overwrite of output file and (de)compress links\n"
@@ -594,15 +508,7 @@ msgstr ""
" -f, --force nadpisywanie plików wyjściowych i (de)kompresja dowiązań\n"
" -c, --stdout zapis na standardowe wyjście, nieusuwanie plików wej."
#: src/xz/message.c:1107
msgid ""
" --single-stream decompress only the first stream, and silently\n"
" ignore possible remaining input data"
msgstr ""
" --single-stream dekompresja tylko pierwszego strumienia, ciche\n"
" zignorowanie pozostałych danych wejściowych"
#: src/xz/message.c:1110
#: src/xz/message.c:1113
msgid ""
" --no-sparse do not create sparse files when decompressing\n"
" -S, --suffix=.SUF use the suffix `.SUF' on compressed files\n"
@@ -618,7 +524,7 @@ msgstr ""
" wejścia; muszą być zakończone znakiem nowej linii\n"
" --files0[=PLIK] podobnie do --files, ale znakiem kończącym musi być NUL"
#: src/xz/message.c:1119
#: src/xz/message.c:1121
msgid ""
"\n"
" Basic file format and compression options:\n"
@@ -626,7 +532,7 @@ msgstr ""
"\n"
" Podstawowe opcje formatu pliku i kompresji:\n"
#: src/xz/message.c:1121
#: src/xz/message.c:1123
msgid ""
" -F, --format=FMT file format to encode or decode; possible values are\n"
" `auto' (default), `xz', `lzma', and `raw'\n"
@@ -638,10 +544,6 @@ msgstr ""
" -C, --check=TEST typ kontroli spójności: `none' (ostrożnie!),\n"
" `crc32', `crc64' (domyślny) lub `sha256'"
#: src/xz/message.c:1126
msgid " --ignore-check don't verify the integrity check when decompressing"
msgstr " --ignore-check bez kontroli sprawdzania integralności przy dekompresji"
#: src/xz/message.c:1130
msgid ""
" -0 ... -9 compression preset; default is 6; take compressor *and*\n"
@@ -660,48 +562,7 @@ msgstr ""
" ilości czasu procesora; nie wpływa na wymagania\n"
" pamięciowe dekompresora"
#: src/xz/message.c:1138
msgid ""
" -T, --threads=NUM use at most NUM threads; the default is 1; set to 0\n"
" to use as many threads as there are processor cores"
msgstr ""
" -T, --threads=ILE użycie maksymalnie ILU wątków; domyślnie 1; 0 oznacza\n"
" tyle, ile jest rdzeni procesorów"
#: src/xz/message.c:1143
msgid ""
" --block-size=SIZE\n"
" start a new .xz block after every SIZE bytes of input;\n"
" use this to set the block size for threaded compression"
msgstr ""
" --block-size=ROZMIAR\n"
" rozpoczęcie nowego bloku .xz co ROZMIAR bajtów wejścia;\n"
" opcja służy do ustawienia rozmiaru bloku dla kompresji\n"
" wielowątkowej"
#: src/xz/message.c:1147
msgid ""
" --block-list=SIZES\n"
" start a new .xz block after the given comma-separated\n"
" intervals of uncompressed data"
msgstr ""
" --block-list=ROZMIARY\n"
" rozpoczęcie nowego bloku .xz po rozdzielonych przecinkiem\n"
" przedziałach danych nieskompresowanych"
#: src/xz/message.c:1151
msgid ""
" --flush-timeout=TIMEOUT\n"
" when compressing, if more than TIMEOUT milliseconds has\n"
" passed since the previous flush and reading more input\n"
" would block, all pending data is flushed out"
msgstr ""
" --flush-timeout=CZAS\n"
" przy kompresji, jeśli minęło więcej niż CZAS milisekund\n"
" ostatniegu zapisu bloku, a odczyt kolejnych danych byłby\n"
" blokujący, wszystkie gotowe dane są zapisywane"
#: src/xz/message.c:1157
#: src/xz/message.c:1139
#, no-c-format
msgid ""
" --memlimit-compress=LIMIT\n"
@@ -717,7 +578,7 @@ msgstr ""
" dekompresji lub obu; LIMIT jest w bajtach, % RAM lub 0\n"
" dla limitów domyślnych"
#: src/xz/message.c:1164
#: src/xz/message.c:1146
msgid ""
" --no-adjust if compression settings exceed the memory usage limit,\n"
" give an error instead of adjusting the settings downwards"
@@ -726,7 +587,7 @@ msgstr ""
" pamięci, zostanie zgłoszony błąd zamiast zmniejszania\n"
" ustawień"
#: src/xz/message.c:1170
#: src/xz/message.c:1152
msgid ""
"\n"
" Custom filter chain for compression (alternative for using presets):"
@@ -734,7 +595,7 @@ msgstr ""
"\n"
" Łańcuch własnych filtrów do kompresji (alternatywa do używania -0 .. -9):"
#: src/xz/message.c:1179
#: src/xz/message.c:1161
msgid ""
"\n"
" --lzma1[=OPTS] LZMA1 or LZMA2; OPTS is a comma-separated list of zero or\n"
@@ -763,7 +624,7 @@ msgstr ""
" mf=NAZWA dopasowywacz (hc3, hc4, bt2, bt3, bt4; bt4)\n"
" depth=ILE maks. głębokość szukania; 0=auto (domyślne)"
#: src/xz/message.c:1194
#: src/xz/message.c:1176
msgid ""
"\n"
" --x86[=OPTS] x86 BCJ filter (32-bit and 64-bit)\n"
@@ -785,7 +646,7 @@ msgstr ""
" Poprawne OPCJE dla wszystkich filtrów BCJ:\n"
" start=ILE offset początku konwersji (domyślnie=0)"
#: src/xz/message.c:1206
#: src/xz/message.c:1188
msgid ""
"\n"
" --delta[=OPTS] Delta filter; valid OPTS (valid values; default):\n"
@@ -797,7 +658,7 @@ msgstr ""
" dist=ILE odległość między bajtami odejmowanymi od\n"
" siebie (1-256; 1)"
#: src/xz/message.c:1214
#: src/xz/message.c:1196
msgid ""
"\n"
" Other options:\n"
@@ -805,7 +666,7 @@ msgstr ""
"\n"
" Inne opcje:\n"
#: src/xz/message.c:1217
#: src/xz/message.c:1199
msgid ""
" -q, --quiet suppress warnings; specify twice to suppress errors too\n"
" -v, --verbose be verbose; specify twice for even more verbose"
@@ -813,15 +674,15 @@ msgstr ""
" -q, --quiet pominięcie ostrzeżeń; dwukrotne podanie pomija też błędy\n"
" -v, --verbose więcej informacji; dwukrotne podanie to jeszcze więcej"
#: src/xz/message.c:1222
#: src/xz/message.c:1204
msgid " -Q, --no-warn make warnings not affect the exit status"
msgstr " -Q, --no-warn ostrzeżenia nie mają wpływu na status zakończenia"
#: src/xz/message.c:1224
#: src/xz/message.c:1206
msgid " --robot use machine-parsable messages (useful for scripts)"
msgstr " --robot komunikaty w formacie dla maszyny (do skryptów)"
#: src/xz/message.c:1227
#: src/xz/message.c:1209
msgid ""
" --info-memory display the total amount of RAM and the currently active\n"
" memory usage limits, and exit"
@@ -829,7 +690,7 @@ msgstr ""
" --info-memory wyświetlenie całkowitej ilości pamięci RAM oraz aktualnie\n"
" aktywnych limitów pamięci i zakończenie pracy"
#: src/xz/message.c:1230
#: src/xz/message.c:1212
msgid ""
" -h, --help display the short help (lists only the basic options)\n"
" -H, --long-help display this long help and exit"
@@ -837,7 +698,7 @@ msgstr ""
" -h, --help wyświetlenie krótkiego opisu (tylko podstawowe opcje)\n"
" -H, --long-help wyświetlenie tego długiego opisu i zakończenie"
#: src/xz/message.c:1234
#: src/xz/message.c:1216
msgid ""
" -h, --help display this short help and exit\n"
" -H, --long-help display the long help (lists also the advanced options)"
@@ -845,11 +706,11 @@ msgstr ""
" -h, --help wyświetlenie tego krótkiego opisu i zakończenie\n"
" -H, --long-help wyświetlenie długiego opisu (także opcje zaawansowane)"
#: src/xz/message.c:1239
#: src/xz/message.c:1221
msgid " -V, --version display the version number and exit"
msgstr " -V, --version wyświetlenie informacji o wersji i zakończenie"
#: src/xz/message.c:1241
#: src/xz/message.c:1223
msgid ""
"\n"
"With no FILE, or when FILE is -, read standard input.\n"
@@ -861,7 +722,7 @@ msgstr ""
#. for this package. Please add _another line_ saying
#. "Report translation bugs to <...>\n" with the email or WWW
#. address for translation bugs. Thanks.
#: src/xz/message.c:1247
#: src/xz/message.c:1229
#, c-format
msgid "Report bugs to <%s> (in English or Finnish).\n"
msgstr ""
@@ -870,15 +731,11 @@ msgstr ""
"Błędy w tłumaczeniu prosimy zgłaszać na adres\n"
"<translation-team-pl@lists.sourceforge.net>.\n"
#: src/xz/message.c:1249
#: src/xz/message.c:1231
#, c-format
msgid "%s home page: <%s>\n"
msgstr "Strona domowa %s: <%s>\n"
#: src/xz/message.c:1253
msgid "THIS IS A DEVELOPMENT VERSION NOT INTENDED FOR PRODUCTION USE."
msgstr "TA WERSJA JEST ROZWOJOWA, NIE PRZEZNACZONA DO UŻYTKU PRODUKCYJNEGO."
#: src/xz/options.c:86
#, c-format
msgid "%s: Options must be `name=value' pairs separated with commas"
@@ -908,54 +765,54 @@ msgstr "Suma lc i lp nie może przekroczyć 4"
msgid "The selected match finder requires at least nice=%<PRIu32>"
msgstr "Wybrany dopasowywacz wymaga przynajmniej nice=%<PRIu32>"
#: src/xz/suffix.c:133 src/xz/suffix.c:258
#: src/xz/suffix.c:104 src/xz/suffix.c:189
#, c-format
msgid "%s: With --format=raw, --suffix=.SUF is required unless writing to stdout"
msgstr "%s: Przy --format=raw i zapisie do pliku wymagana jest opcja --suffix=.ROZ"
#: src/xz/suffix.c:164
#: src/xz/suffix.c:124
#, c-format
msgid "%s: Filename has an unknown suffix, skipping"
msgstr "%s: Nazwa pliku ma nieznane rozszerzenie, pominięto"
#: src/xz/suffix.c:185
#: src/xz/suffix.c:179
#, c-format
msgid "%s: File already has `%s' suffix, skipping"
msgstr "%s: Plik już ma rozszerzenie `%s', pominięto"
#: src/xz/suffix.c:393
#: src/xz/suffix.c:230
#, c-format
msgid "%s: Invalid filename suffix"
msgstr "%s: Błędne rozszerzenie nazwy pliku"
#: src/xz/util.c:71
#: src/xz/util.c:61
#, c-format
msgid "%s: Value is not a non-negative decimal integer"
msgstr "%s: Wartość nie jest nieujemną liczbą całkowitą"
#: src/xz/util.c:113
#: src/xz/util.c:103
#, c-format
msgid "%s: Invalid multiplier suffix"
msgstr "%s: Błędny przyrostek mnożnika"
#: src/xz/util.c:115
#: src/xz/util.c:105
msgid "Valid suffixes are `KiB' (2^10), `MiB' (2^20), and `GiB' (2^30)."
msgstr "Poprawne przyrostki to `KiB' (2^10), `MiB' (2^20) i `GiB' (2^30)."
#: src/xz/util.c:132
#: src/xz/util.c:122
#, c-format
msgid "Value of the option `%s' must be in the range [%<PRIu64>, %<PRIu64>]"
msgstr "Wartość opcji `%s' musi być w przedziale [%<PRIu64>, %<PRIu64>]"
#: src/xz/util.c:257
#: src/xz/util.c:247
msgid "Empty filename, skipping"
msgstr "Pusta nazwa pliku, pominięto"
#: src/xz/util.c:271
#: src/xz/util.c:261
msgid "Compressed data cannot be read from a terminal"
msgstr "Dane skompresowane nie mogą być czytane z terminala"
#: src/xz/util.c:284
#: src/xz/util.c:274
msgid "Compressed data cannot be written to a terminal"
msgstr "Dane skompresowane nie mogą być zapisywane na terminal"

1039
po/vi.po
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File diff suppressed because it is too large Load Diff

22
src/Makefile.am
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@@ -19,24 +19,4 @@ if COND_SCRIPTS
SUBDIRS += scripts
endif
EXTRA_DIST = \
common/common_w32res.rc \
common/mythread.h \
common/sysdefs.h \
common/tuklib_common.h \
common/tuklib_config.h \
common/tuklib_cpucores.c \
common/tuklib_cpucores.h \
common/tuklib_exit.c \
common/tuklib_exit.h \
common/tuklib_gettext.h \
common/tuklib_integer.h \
common/tuklib_mbstr_fw.c \
common/tuklib_mbstr.h \
common/tuklib_mbstr_width.c \
common/tuklib_open_stdxxx.c \
common/tuklib_open_stdxxx.h \
common/tuklib_physmem.c \
common/tuklib_physmem.h \
common/tuklib_progname.c \
common/tuklib_progname.h
EXTRA_DIST = common

2
src/common/common_w32res.rc
View File

@@ -17,7 +17,7 @@
#define MY_VERSION LZMA_VERSION_MAJOR,LZMA_VERSION_MINOR,LZMA_VERSION_PATCH,MY_BUILD
#define MY_FILENAME MY_NAME MY_SUFFIX
#define MY_COMPANY "The Tukaani Project <https://tukaani.org/>"
#define MY_COMPANY "The Tukaani Project <http://tukaani.org/>"
#define MY_PRODUCT PACKAGE_NAME " <" PACKAGE_URL ">"
LANGUAGE LANG_ENGLISH, SUBLANG_ENGLISH_US

505
src/common/mythread.h
View File

@@ -1,7 +1,7 @@
///////////////////////////////////////////////////////////////////////////////
//
/// \file mythread.h
/// \brief Some threading related helper macros and functions
/// \brief Wrappers for threads
//
// Author: Lasse Collin
//
@@ -10,512 +10,33 @@
//
///////////////////////////////////////////////////////////////////////////////
#ifndef MYTHREAD_H
#define MYTHREAD_H
#include "sysdefs.h"
// If any type of threading is enabled, #define MYTHREAD_ENABLED.
#if defined(MYTHREAD_POSIX) || defined(MYTHREAD_WIN95) \
|| defined(MYTHREAD_VISTA)
# define MYTHREAD_ENABLED 1
#endif
#ifdef HAVE_PTHREAD
# include <pthread.h>
#ifdef MYTHREAD_ENABLED
////////////////////////////////////////
// Shared between all threading types //
////////////////////////////////////////
// Locks a mutex for a duration of a block.
//
// Perform mythread_mutex_lock(&mutex) in the beginning of a block
// and mythread_mutex_unlock(&mutex) at the end of the block. "break"
// may be used to unlock the mutex and jump out of the block.
// mythread_sync blocks may be nested.
//
// Example:
//
// mythread_sync(mutex) {
// foo();
// if (some_error)
// break; // Skips bar()
// bar();
// }
//
// At least GCC optimizes the loops completely away so it doesn't slow
// things down at all compared to plain mythread_mutex_lock(&mutex)
// and mythread_mutex_unlock(&mutex) calls.
//
#define mythread_sync(mutex) mythread_sync_helper1(mutex, __LINE__)
#define mythread_sync_helper1(mutex, line) mythread_sync_helper2(mutex, line)
#define mythread_sync_helper2(mutex, line) \
for (unsigned int mythread_i_ ## line = 0; \
mythread_i_ ## line \
? (mythread_mutex_unlock(&(mutex)), 0) \
: (mythread_mutex_lock(&(mutex)), 1); \
mythread_i_ ## line = 1) \
for (unsigned int mythread_j_ ## line = 0; \
!mythread_j_ ## line; \
mythread_j_ ## line = 1)
#endif
#if !defined(MYTHREAD_ENABLED)
//////////////////
// No threading //
//////////////////
// Calls the given function once. This isn't thread safe.
#define mythread_once(func) \
do { \
static bool once_ = false; \
if (!once_) { \
func(); \
once_ = true; \
} \
} while (0)
#if !(defined(_WIN32) && !defined(__CYGWIN__))
// Use sigprocmask() to set the signal mask in single-threaded programs.
#include <signal.h>
static inline void
mythread_sigmask(int how, const sigset_t *restrict set,
sigset_t *restrict oset)
{
int ret = sigprocmask(how, set, oset);
assert(ret == 0);
(void)ret;
}
#endif
#elif defined(MYTHREAD_POSIX)
////////////////////
// Using pthreads //
////////////////////
#include <sys/time.h>
#include <pthread.h>
#include <signal.h>
#include <time.h>
#include <errno.h>
#define MYTHREAD_RET_TYPE void *
#define MYTHREAD_RET_VALUE NULL
typedef pthread_t mythread;
typedef pthread_mutex_t mythread_mutex;
typedef struct {
pthread_cond_t cond;
#ifdef HAVE_CLOCK_GETTIME
// Clock ID (CLOCK_REALTIME or CLOCK_MONOTONIC) associated with
// the condition variable.
clockid_t clk_id;
#endif
} mythread_cond;
typedef struct timespec mythread_condtime;
// Calls the given function once in a thread-safe way.
#define mythread_once(func) \
# define mythread_once(func) \
do { \
static pthread_once_t once_ = PTHREAD_ONCE_INIT; \
pthread_once(&once_, &func); \
} while (0)
# define mythread_sigmask(how, set, oset) \
pthread_sigmask(how, set, oset)
// Use pthread_sigmask() to set the signal mask in multi-threaded programs.
// Do nothing on OpenVMS since it lacks pthread_sigmask().
static inline void
mythread_sigmask(int how, const sigset_t *restrict set,
sigset_t *restrict oset)
{
#ifdef __VMS
(void)how;
(void)set;
(void)oset;
#else
int ret = pthread_sigmask(how, set, oset);
assert(ret == 0);
(void)ret;
#endif
}
// Creates a new thread with all signals blocked. Returns zero on success
// and non-zero on error.
static inline int
mythread_create(mythread *thread, void *(*func)(void *arg), void *arg)
{
sigset_t old;
sigset_t all;
sigfillset(&all);
mythread_sigmask(SIG_SETMASK, &all, &old);
const int ret = pthread_create(thread, NULL, func, arg);
mythread_sigmask(SIG_SETMASK, &old, NULL);
return ret;
}
// Joins a thread. Returns zero on success and non-zero on error.
static inline int
mythread_join(mythread thread)
{
return pthread_join(thread, NULL);
}
// Initiatlizes a mutex. Returns zero on success and non-zero on error.
static inline int
mythread_mutex_init(mythread_mutex *mutex)
{
return pthread_mutex_init(mutex, NULL);
}
static inline void
mythread_mutex_destroy(mythread_mutex *mutex)
{
int ret = pthread_mutex_destroy(mutex);
assert(ret == 0);
(void)ret;
}
static inline void
mythread_mutex_lock(mythread_mutex *mutex)
{
int ret = pthread_mutex_lock(mutex);
assert(ret == 0);
(void)ret;
}
static inline void
mythread_mutex_unlock(mythread_mutex *mutex)
{
int ret = pthread_mutex_unlock(mutex);
assert(ret == 0);
(void)ret;
}
// Initializes a condition variable.
//
// Using CLOCK_MONOTONIC instead of the default CLOCK_REALTIME makes the
// timeout in pthread_cond_timedwait() work correctly also if system time
// is suddenly changed. Unfortunately CLOCK_MONOTONIC isn't available
// everywhere while the default CLOCK_REALTIME is, so the default is
// used if CLOCK_MONOTONIC isn't available.
//
// If clock_gettime() isn't available at all, gettimeofday() will be used.
static inline int
mythread_cond_init(mythread_cond *mycond)
{
#ifdef HAVE_CLOCK_GETTIME
// NOTE: HAVE_DECL_CLOCK_MONOTONIC is always defined to 0 or 1.
# if defined(HAVE_PTHREAD_CONDATTR_SETCLOCK) && HAVE_DECL_CLOCK_MONOTONIC
struct timespec ts;
pthread_condattr_t condattr;
// POSIX doesn't seem to *require* that pthread_condattr_setclock()
// will fail if given an unsupported clock ID. Test that
// CLOCK_MONOTONIC really is supported using clock_gettime().
if (clock_gettime(CLOCK_MONOTONIC, &ts) == 0
&& pthread_condattr_init(&condattr) == 0) {
int ret = pthread_condattr_setclock(
&condattr, CLOCK_MONOTONIC);
if (ret == 0)
ret = pthread_cond_init(&mycond->cond, &condattr);
pthread_condattr_destroy(&condattr);
if (ret == 0) {
mycond->clk_id = CLOCK_MONOTONIC;
return 0;
}
}
// If anything above fails, fall back to the default CLOCK_REALTIME.
// POSIX requires that all implementations of clock_gettime() must
// support at least CLOCK_REALTIME.
# endif
mycond->clk_id = CLOCK_REALTIME;
#endif
return pthread_cond_init(&mycond->cond, NULL);
}
static inline void
mythread_cond_destroy(mythread_cond *cond)
{
int ret = pthread_cond_destroy(&cond->cond);
assert(ret == 0);
(void)ret;
}
static inline void
mythread_cond_signal(mythread_cond *cond)
{
int ret = pthread_cond_signal(&cond->cond);
assert(ret == 0);
(void)ret;
}
static inline void
mythread_cond_wait(mythread_cond *cond, mythread_mutex *mutex)
{
int ret = pthread_cond_wait(&cond->cond, mutex);
assert(ret == 0);
(void)ret;
}
// Waits on a condition or until a timeout expires. If the timeout expires,
// non-zero is returned, otherwise zero is returned.
static inline int
mythread_cond_timedwait(mythread_cond *cond, mythread_mutex *mutex,
const mythread_condtime *condtime)
{
int ret = pthread_cond_timedwait(&cond->cond, mutex, condtime);
assert(ret == 0 || ret == ETIMEDOUT);
return ret;
}
// Sets condtime to the absolute time that is timeout_ms milliseconds
// in the future. The type of the clock to use is taken from cond.
static inline void
mythread_condtime_set(mythread_condtime *condtime, const mythread_cond *cond,
uint32_t timeout_ms)
{
condtime->tv_sec = timeout_ms / 1000;
condtime->tv_nsec = (timeout_ms % 1000) * 1000000;
#ifdef HAVE_CLOCK_GETTIME
struct timespec now;
int ret = clock_gettime(cond->clk_id, &now);
assert(ret == 0);
(void)ret;
condtime->tv_sec += now.tv_sec;
condtime->tv_nsec += now.tv_nsec;
#else
(void)cond;
struct timeval now;
gettimeofday(&now, NULL);
condtime->tv_sec += now.tv_sec;
condtime->tv_nsec += now.tv_usec * 1000L;
#endif
// tv_nsec must stay in the range [0, 999_999_999].
if (condtime->tv_nsec >= 1000000000L) {
condtime->tv_nsec -= 1000000000L;
++condtime->tv_sec;
}
}
#elif defined(MYTHREAD_WIN95) || defined(MYTHREAD_VISTA)
/////////////////////
// Windows threads //
/////////////////////
#define WIN32_LEAN_AND_MEAN
#ifdef MYTHREAD_VISTA
# undef _WIN32_WINNT
# define _WIN32_WINNT 0x0600
#endif
#include <windows.h>
#include <process.h>
#define MYTHREAD_RET_TYPE unsigned int __stdcall
#define MYTHREAD_RET_VALUE 0
typedef HANDLE mythread;
typedef CRITICAL_SECTION mythread_mutex;
#ifdef MYTHREAD_WIN95
typedef HANDLE mythread_cond;
#else
typedef CONDITION_VARIABLE mythread_cond;
#endif
typedef struct {
// Tick count (milliseconds) in the beginning of the timeout.
// NOTE: This is 32 bits so it wraps around after 49.7 days.
// Multi-day timeouts may not work as expected.
DWORD start;
// Length of the timeout in milliseconds. The timeout expires
// when the current tick count minus "start" is equal or greater
// than "timeout".
DWORD timeout;
} mythread_condtime;
// mythread_once() is only available with Vista threads.
#ifdef MYTHREAD_VISTA
#define mythread_once(func) \
# define mythread_once(func) \
do { \
static INIT_ONCE once_ = INIT_ONCE_STATIC_INIT; \
BOOL pending_; \
if (!InitOnceBeginInitialize(&once_, 0, &pending_, NULL)) \
abort(); \
if (pending_) \
static bool once_ = false; \
if (!once_) { \
func(); \
if (!InitOnceComplete(&once, 0, NULL)) \
abort(); \
once_ = true; \
} \
} while (0)
#endif
// mythread_sigmask() isn't available on Windows. Even a dummy version would
// make no sense because the other POSIX signal functions are missing anyway.
static inline int
mythread_create(mythread *thread,
unsigned int (__stdcall *func)(void *arg), void *arg)
{
uintptr_t ret = _beginthreadex(NULL, 0, func, arg, 0, NULL);
if (ret == 0)
return -1;
*thread = (HANDLE)ret;
return 0;
}
static inline int
mythread_join(mythread thread)
{
int ret = 0;
if (WaitForSingleObject(thread, INFINITE) != WAIT_OBJECT_0)
ret = -1;
if (!CloseHandle(thread))
ret = -1;
return ret;
}
static inline int
mythread_mutex_init(mythread_mutex *mutex)
{
InitializeCriticalSection(mutex);
return 0;
}
static inline void
mythread_mutex_destroy(mythread_mutex *mutex)
{
DeleteCriticalSection(mutex);
}
static inline void
mythread_mutex_lock(mythread_mutex *mutex)
{
EnterCriticalSection(mutex);
}
static inline void
mythread_mutex_unlock(mythread_mutex *mutex)
{
LeaveCriticalSection(mutex);
}
static inline int
mythread_cond_init(mythread_cond *cond)
{
#ifdef MYTHREAD_WIN95
*cond = CreateEvent(NULL, FALSE, FALSE, NULL);
return *cond == NULL ? -1 : 0;
#else
InitializeConditionVariable(cond);
return 0;
#endif
}
static inline void
mythread_cond_destroy(mythread_cond *cond)
{
#ifdef MYTHREAD_WIN95
CloseHandle(*cond);
#else
(void)cond;
#endif
}
static inline void
mythread_cond_signal(mythread_cond *cond)
{
#ifdef MYTHREAD_WIN95
SetEvent(*cond);
#else
WakeConditionVariable(cond);
#endif
}
static inline void
mythread_cond_wait(mythread_cond *cond, mythread_mutex *mutex)
{
#ifdef MYTHREAD_WIN95
LeaveCriticalSection(mutex);
WaitForSingleObject(*cond, INFINITE);
EnterCriticalSection(mutex);
#else
BOOL ret = SleepConditionVariableCS(cond, mutex, INFINITE);
assert(ret);
(void)ret;
#endif
}
static inline int
mythread_cond_timedwait(mythread_cond *cond, mythread_mutex *mutex,
const mythread_condtime *condtime)
{
#ifdef MYTHREAD_WIN95
LeaveCriticalSection(mutex);
#endif
DWORD elapsed = GetTickCount() - condtime->start;
DWORD timeout = elapsed >= condtime->timeout
? 0 : condtime->timeout - elapsed;
#ifdef MYTHREAD_WIN95
DWORD ret = WaitForSingleObject(*cond, timeout);
assert(ret == WAIT_OBJECT_0 || ret == WAIT_TIMEOUT);
EnterCriticalSection(mutex);
return ret == WAIT_TIMEOUT;
#else
BOOL ret = SleepConditionVariableCS(cond, mutex, timeout);
assert(ret || GetLastError() == ERROR_TIMEOUT);
return !ret;
#endif
}
static inline void
mythread_condtime_set(mythread_condtime *condtime, const mythread_cond *cond,
uint32_t timeout)
{
(void)cond;
condtime->start = GetTickCount();
condtime->timeout = timeout;
}
#endif
# define mythread_sigmask(how, set, oset) \
sigprocmask(how, set, oset)
#endif

19
src/common/sysdefs.h
View File

@@ -103,12 +103,9 @@
# define UINT64_MAX UINT64_C(18446744073709551615)
#endif
// Incorrect(?) SIZE_MAX:
// - Interix headers typedef size_t to unsigned long,
// but a few lines later define SIZE_MAX to INT32_MAX.
// - SCO OpenServer (x86) headers typedef size_t to unsigned int
// but define SIZE_MAX to INT32_MAX.
#if defined(__INTERIX) || defined(_SCO_DS)
// Interix has broken header files, which typedef size_t to unsigned long,
// but a few lines later define SIZE_MAX to INT32_MAX.
#ifdef __INTERIX
# undef SIZE_MAX
#endif
@@ -165,16 +162,6 @@ typedef unsigned char _Bool;
# include <memory.h>
#endif
// As of MSVC 2013, inline and restrict are supported with
// non-standard keywords.
#if defined(_WIN32) && defined(_MSC_VER)
# ifndef inline
# define inline __inline
# endif
# ifndef restrict
# define restrict __restrict
# endif
#endif
////////////
// Macros //

42
src/common/tuklib_cpucores.c
View File

@@ -12,22 +12,7 @@
#include "tuklib_cpucores.h"
#if defined(_WIN32) || defined(__CYGWIN__)
# ifndef _WIN32_WINNT
# define _WIN32_WINNT 0x0500
# endif
# include <windows.h>
// glibc >= 2.9
#elif defined(TUKLIB_CPUCORES_SCHED_GETAFFINITY)
# include <sched.h>
// FreeBSD
#elif defined(TUKLIB_CPUCORES_CPUSET)
# include <sys/param.h>
# include <sys/cpuset.h>
#elif defined(TUKLIB_CPUCORES_SYSCTL)
#if defined(TUKLIB_CPUCORES_SYSCTL)
# ifdef HAVE_SYS_PARAM_H
# include <sys/param.h>
# endif
@@ -48,30 +33,7 @@ tuklib_cpucores(void)
{
uint32_t ret = 0;
#if defined(_WIN32) || defined(__CYGWIN__)
SYSTEM_INFO sysinfo;
GetSystemInfo(&sysinfo);
ret = sysinfo.dwNumberOfProcessors;
#elif defined(TUKLIB_CPUCORES_SCHED_GETAFFINITY)
cpu_set_t cpu_mask;
if (sched_getaffinity(0, sizeof(cpu_mask), &cpu_mask) == 0)
ret = CPU_COUNT(&cpu_mask);
#elif defined(TUKLIB_CPUCORES_CPUSET)
cpuset_t set;
if (cpuset_getaffinity(CPU_LEVEL_WHICH, CPU_WHICH_PID, -1,
sizeof(set), &set) == 0) {
# ifdef CPU_COUNT
ret = CPU_COUNT(&set);
# else
for (unsigned i = 0; i < CPU_SETSIZE; ++i)
if (CPU_ISSET(i, &set))
++ret;
# endif
}
#elif defined(TUKLIB_CPUCORES_SYSCTL)
#if defined(TUKLIB_CPUCORES_SYSCTL)
int name[2] = { CTL_HW, HW_NCPU };
int cpus;
size_t cpus_size = sizeof(cpus);

35
src/common/tuklib_integer.h
View File

@@ -98,17 +98,6 @@
#endif
////////////////////////////////
// Compiler-specific features //
////////////////////////////////
// Newer Intel C compilers require immintrin.h for _bit_scan_reverse()
// and such functions.
#if defined(__INTEL_COMPILER) && (__INTEL_COMPILER >= 1500)
# include <immintrin.h>
#endif
///////////////////
// Byte swapping //
///////////////////
@@ -332,8 +321,8 @@ unaligned_read32le(const uint8_t *buf)
static inline void
unaligned_write16be(uint8_t *buf, uint16_t num)
{
buf[0] = (uint8_t)(num >> 8);
buf[1] = (uint8_t)num;
buf[0] = num >> 8;
buf[1] = num;
return;
}
@@ -341,8 +330,8 @@ unaligned_write16be(uint8_t *buf, uint16_t num)
static inline void
unaligned_write16le(uint8_t *buf, uint16_t num)
{
buf[0] = (uint8_t)num;
buf[1] = (uint8_t)(num >> 8);
buf[0] = num;
buf[1] = num >> 8;
return;
}
@@ -350,10 +339,10 @@ unaligned_write16le(uint8_t *buf, uint16_t num)
static inline void
unaligned_write32be(uint8_t *buf, uint32_t num)
{
buf[0] = (uint8_t)(num >> 24);
buf[1] = (uint8_t)(num >> 16);
buf[2] = (uint8_t)(num >> 8);
buf[3] = (uint8_t)num;
buf[0] = num >> 24;
buf[1] = num >> 16;
buf[2] = num >> 8;
buf[3] = num;
return;
}
@@ -361,10 +350,10 @@ unaligned_write32be(uint8_t *buf, uint32_t num)
static inline void
unaligned_write32le(uint8_t *buf, uint32_t num)
{
buf[0] = (uint8_t)num;
buf[1] = (uint8_t)(num >> 8);
buf[2] = (uint8_t)(num >> 16);
buf[3] = (uint8_t)(num >> 24);
buf[0] = num;
buf[1] = num >> 8;
buf[2] = num >> 16;
buf[3] = num >> 24;
return;
}

4
src/common/tuklib_open_stdxxx.c
View File

@@ -39,14 +39,12 @@ tuklib_open_stdxxx(int err_status)
| (i == 0 ? O_WRONLY : O_RDONLY));
if (fd != i) {
if (fd != -1)
(void)close(fd);
// Something went wrong. Exit with the
// exit status we were given. Don't try
// to print an error message, since stderr
// may very well be non-existent. This
// error should be extremely rare.
(void)close(fd);
exit(err_status);
}
}

24
src/common/tuklib_physmem.c
View File

@@ -33,14 +33,7 @@
# include <syidef.h>
# include <ssdef.h>
#elif defined(AMIGA) || defined(__AROS__)
# define __USE_INLINE__
# include <proto/exec.h>
#elif defined(__QNX__)
# include <sys/syspage.h>
# include <string.h>
// AIX
#elif defined(TUKLIB_PHYSMEM_AIX)
# include <sys/systemcfg.h>
@@ -86,8 +79,7 @@ tuklib_physmem(void)
// GlobalMemoryStatusEx() conditionally.
HMODULE kernel32 = GetModuleHandle("kernel32.dll");
if (kernel32 != NULL) {
typedef BOOL (WINAPI *gmse_type)(LPMEMORYSTATUSEX);
gmse_type gmse = (gmse_type)GetProcAddress(
BOOL (WINAPI *gmse)(LPMEMORYSTATUSEX) = GetProcAddress(
kernel32, "GlobalMemoryStatusEx");
if (gmse != NULL) {
MEMORYSTATUSEX meminfo;
@@ -127,18 +119,6 @@ tuklib_physmem(void)
if (LIB$GETSYI(&val, &vms_mem, 0, 0, 0, 0) == SS$_NORMAL)
ret = (uint64_t)vms_mem * 8192;
#elif defined(AMIGA) || defined(__AROS__)
ret = AvailMem(MEMF_TOTAL);
#elif defined(__QNX__)
const struct asinfo_entry *entries = SYSPAGE_ENTRY(asinfo);
size_t count = SYSPAGE_ENTRY_SIZE(asinfo) / sizeof(struct asinfo_entry);
const char *strings = SYSPAGE_ENTRY(strings)->data;
for (size_t i = 0; i < count; ++i)
if (strcmp(strings + entries[i].name, "ram") == 0)
ret += entries[i].end - entries[i].start + 1;
#elif defined(TUKLIB_PHYSMEM_AIX)
ret = _system_configuration.physmem;

36
src/liblzma/Makefile.am
View File

@@ -12,7 +12,7 @@ CLEANFILES =
doc_DATA =
lib_LTLIBRARIES = liblzma.la
liblzma_la_SOURCES =
liblzma_la_SOURCES = $(top_srcdir)/src/common/tuklib_physmem.c
liblzma_la_CPPFLAGS = \
-I$(top_srcdir)/src/liblzma/api \
-I$(top_srcdir)/src/liblzma/common \
@@ -24,19 +24,7 @@ liblzma_la_CPPFLAGS = \
-I$(top_srcdir)/src/liblzma/simple \
-I$(top_srcdir)/src/common \
-DTUKLIB_SYMBOL_PREFIX=lzma_
liblzma_la_LDFLAGS = -no-undefined -version-info 7:4:2
EXTRA_DIST += liblzma.map validate_map.sh
if COND_SYMVERS
liblzma_la_LDFLAGS += \
-Wl,--version-script=$(top_srcdir)/src/liblzma/liblzma.map
endif
liblzma_la_SOURCES += ../common/tuklib_physmem.c
if COND_THREADS
liblzma_la_SOURCES += ../common/tuklib_cpucores.c
endif
liblzma_la_LDFLAGS = -no-undefined -version-info 5:3:0
include $(srcdir)/common/Makefile.inc
include $(srcdir)/check/Makefile.inc
@@ -100,23 +88,3 @@ endif
pkgconfigdir = $(libdir)/pkgconfig
pkgconfig_DATA = liblzma.pc
EXTRA_DIST += liblzma.pc.in
pc_verbose = $(pc_verbose_@AM_V@)
pc_verbose_ = $(pc_verbose_@AM_DEFAULT_V@)
pc_verbose_0 = @echo " PC " $@;
liblzma.pc: $(srcdir)/liblzma.pc.in
$(AM_V_at)rm -f $@
$(pc_verbose)sed \
-e 's,@prefix[@],$(prefix),g' \
-e 's,@exec_prefix[@],$(exec_prefix),g' \
-e 's,@libdir[@],$(libdir),g' \
-e 's,@includedir[@],$(includedir),g' \
-e 's,@PACKAGE_URL[@],$(PACKAGE_URL),g' \
-e 's,@PACKAGE_VERSION[@],$(PACKAGE_VERSION),g' \
-e 's,@PTHREAD_CFLAGS[@],$(PTHREAD_CFLAGS),g' \
-e 's,@LIBS[@],$(LIBS),g' \
< $(srcdir)/liblzma.pc.in > $@ || { rm -f $@; exit 1; }
clean-local:
rm -f liblzma.pc

2
src/liblzma/api/Makefile.am
View File

@@ -17,7 +17,7 @@ nobase_include_HEADERS = \
lzma/hardware.h \
lzma/index.h \
lzma/index_hash.h \
lzma/lzma12.h \
lzma/lzma.h \
lzma/stream_flags.h \
lzma/version.h \
lzma/vli.h

26
src/liblzma/api/lzma.h
View File

@@ -82,20 +82,12 @@
# if !defined(UINT32_C) || !defined(UINT64_C) \
|| !defined(UINT32_MAX) || !defined(UINT64_MAX)
/*
* MSVC versions older than 2013 have no C99 support, and
* thus they cannot be used to compile liblzma. Using an
* existing liblzma.dll with old MSVC can work though(*),
* but we need to define the required standard integer
* types here in a MSVC-specific way.
*
* (*) If you do this, the existing liblzma.dll probably uses
* a different runtime library than your MSVC-built
* application. Mixing runtimes is generally bad, but
* in this case it should work as long as you avoid
* the few rarely-needed liblzma functions that allocate
* memory and expect the caller to free it using free().
* MSVC has no C99 support, and thus it cannot be used to
* compile liblzma. The liblzma API has to still be usable
* from MSVC, so we need to define the required standard
* integer types here.
*/
# if defined(_WIN32) && defined(_MSC_VER) && _MSC_VER < 1800
# if defined(_WIN32) && defined(_MSC_VER)
typedef unsigned __int8 uint8_t;
typedef unsigned __int32 uint32_t;
typedef unsigned __int64 uint64_t;
@@ -219,11 +211,7 @@
*/
#ifndef lzma_nothrow
# if defined(__cplusplus)
# if __cplusplus >= 201103L
# define lzma_nothrow noexcept
# else
# define lzma_nothrow throw()
# endif
# define lzma_nothrow throw()
# elif __GNUC__ > 3 || (__GNUC__ == 3 && __GNUC_MINOR__ >= 3)
# define lzma_nothrow __attribute__((__nothrow__))
# else
@@ -298,7 +286,7 @@ extern "C" {
#include "lzma/filter.h"
#include "lzma/bcj.h"
#include "lzma/delta.h"
#include "lzma/lzma12.h"
#include "lzma/lzma.h"
/* Container formats */
#include "lzma/container.h"

88
src/liblzma/api/lzma/base.h
View File

@@ -240,12 +240,12 @@ typedef enum {
/**
* \brief The `action' argument for lzma_code()
*
* After the first use of LZMA_SYNC_FLUSH, LZMA_FULL_FLUSH, LZMA_FULL_BARRIER,
* or LZMA_FINISH, the same `action' must is used until lzma_code() returns
* LZMA_STREAM_END. Also, the amount of input (that is, strm->avail_in) must
* not be modified by the application until lzma_code() returns
* LZMA_STREAM_END. Changing the `action' or modifying the amount of input
* will make lzma_code() return LZMA_PROG_ERROR.
* After the first use of LZMA_SYNC_FLUSH, LZMA_FULL_FLUSH, or LZMA_FINISH,
* the same `action' must is used until lzma_code() returns LZMA_STREAM_END.
* Also, the amount of input (that is, strm->avail_in) must not be modified
* by the application until lzma_code() returns LZMA_STREAM_END. Changing the
* `action' or modifying the amount of input will make lzma_code() return
* LZMA_PROG_ERROR.
*/
typedef enum {
LZMA_RUN = 0,
@@ -293,7 +293,7 @@ typedef enum {
*
* All the input data going to the current Block must have
* been given to the encoder (the last bytes can still be
* pending in *next_in). Call lzma_code() with LZMA_FULL_FLUSH
* pending in* next_in). Call lzma_code() with LZMA_FULL_FLUSH
* until it returns LZMA_STREAM_END. Then continue normally
* with LZMA_RUN or finish the Stream with LZMA_FINISH.
*
@@ -302,29 +302,6 @@ typedef enum {
* no unfinished Block, no empty Block is created.
*/
LZMA_FULL_BARRIER = 4,
/**<
* \brief Finish encoding of the current Block
*
* This is like LZMA_FULL_FLUSH except that this doesn't
* necessarily wait until all the input has been made
* available via the output buffer. That is, lzma_code()
* might return LZMA_STREAM_END as soon as all the input
* has been consumed (avail_in == 0).
*
* LZMA_FULL_BARRIER is useful with a threaded encoder if
* one wants to split the .xz Stream into Blocks at specific
* offsets but doesn't care if the output isn't flushed
* immediately. Using LZMA_FULL_BARRIER allows keeping
* the threads busy while LZMA_FULL_FLUSH would make
* lzma_code() wait until all the threads have finished
* until more data could be passed to the encoder.
*
* With a lzma_stream initialized with the single-threaded
* lzma_stream_encoder() or lzma_easy_encoder(),
* LZMA_FULL_BARRIER is an alias for LZMA_FULL_FLUSH.
*/
LZMA_FINISH = 3
/**<
* \brief Finish the coding operation
@@ -355,19 +332,11 @@ typedef enum {
* malloc() and free(). C++ users should note that the custom memory
* handling functions must not throw exceptions.
*
* Single-threaded mode only: liblzma doesn't make an internal copy of
* lzma_allocator. Thus, it is OK to change these function pointers in
* the middle of the coding process, but obviously it must be done
* carefully to make sure that the replacement `free' can deallocate
* memory allocated by the earlier `alloc' function(s).
*
* Multithreaded mode: liblzma might internally store pointers to the
* lzma_allocator given via the lzma_stream structure. The application
* must not change the allocator pointer in lzma_stream or the contents
* of the pointed lzma_allocator structure until lzma_end() has been used
* to free the memory associated with that lzma_stream. The allocation
* functions might be called simultaneously from multiple threads, and
* thus they must be thread safe.
* liblzma doesn't make an internal copy of lzma_allocator. Thus, it is
* OK to change these function pointers in the middle of the coding
* process, but obviously it must be done carefully to make sure that the
* replacement `free' can deallocate memory allocated by the earlier
* `alloc' function(s).
*/
typedef struct {
/**
@@ -479,8 +448,7 @@ typedef struct lzma_internal_s lzma_internal;
*
* Application may modify the values of total_in and total_out as it wants.
* They are updated by liblzma to match the amount of data read and
* written but aren't used for anything else except as a possible return
* values from lzma_get_progress().
* written, but aren't used for anything else.
*/
typedef struct {
const uint8_t *next_in; /**< Pointer to the next input byte. */
@@ -496,10 +464,8 @@ typedef struct {
*
* In most cases this is NULL which makes liblzma use
* the standard malloc() and free().
*
* \note In 5.0.x this is not a const pointer.
*/
const lzma_allocator *allocator;
lzma_allocator *allocator;
/** Internal state is not visible to applications. */
lzma_internal *internal;
@@ -580,25 +546,6 @@ extern LZMA_API(lzma_ret) lzma_code(lzma_stream *strm, lzma_action action)
extern LZMA_API(void) lzma_end(lzma_stream *strm) lzma_nothrow;
/**
* \brief Get progress information
*
* In single-threaded mode, applications can get progress information from
* strm->total_in and strm->total_out. In multi-threaded mode this is less
* useful because a significant amount of both input and output data gets
* buffered internally by liblzma. This makes total_in and total_out give
* misleading information and also makes the progress indicator updates
* non-smooth.
*
* This function gives realistic progress information also in multi-threaded
* mode by taking into account the progress made by each thread. In
* single-threaded mode *progress_in and *progress_out are set to
* strm->total_in and strm->total_out, respectively.
*/
extern LZMA_API(void) lzma_get_progress(lzma_stream *strm,
uint64_t *progress_in, uint64_t *progress_out) lzma_nothrow;
/**
* \brief Get the memory usage of decoder filter chain
*
@@ -644,16 +591,11 @@ extern LZMA_API(uint64_t) lzma_memlimit_get(const lzma_stream *strm)
* This function is supported only when *strm has been initialized with
* a function that takes a memlimit argument.
*
* liblzma 5.2.3 and earlier has a bug where memlimit value of 0 causes
* this function to do nothing (leaving the limit unchanged) and still
* return LZMA_OK. Later versions treat 0 as if 1 had been specified (so
* lzma_memlimit_get() will return 1 even if you specify 0 here).
*
* \return - LZMA_OK: New memory usage limit successfully set.
* - LZMA_MEMLIMIT_ERROR: The new limit is too small.
* The limit was not changed.
* - LZMA_PROG_ERROR: Invalid arguments, e.g. *strm doesn't
* support memory usage limit.
* support memory usage limit or memlimit was zero.
*/
extern LZMA_API(lzma_ret) lzma_memlimit_set(
lzma_stream *strm, uint64_t memlimit) lzma_nothrow;

77
src/liblzma/api/lzma/block.h
View File

@@ -31,16 +31,11 @@ typedef struct {
/**
* \brief Block format version
*
* To prevent API and ABI breakages when new features are needed,
* a version number is used to indicate which fields in this
* structure are in use:
* - liblzma >= 5.0.0: version = 0 is supported.
* - liblzma >= 5.1.4beta: Support for version = 1 was added,
* which adds the ignore_check field.
*
* If version is greater than one, most Block related functions
* will return LZMA_OPTIONS_ERROR (lzma_block_header_decode() works
* with any version value).
* To prevent API and ABI breakages if new features are needed in
* the Block field, a version number is used to indicate which
* fields in this structure are in use. For now, version must always
* be zero. With non-zero version, most Block related functions will
* return LZMA_OPTIONS_ERROR.
*
* Read by:
* - All functions that take pointer to lzma_block as argument,
@@ -238,28 +233,7 @@ typedef struct {
lzma_reserved_enum reserved_enum2;
lzma_reserved_enum reserved_enum3;
lzma_reserved_enum reserved_enum4;
/**
* \brief A flag to Block decoder to not verify the Check field
*
* This field is supported by liblzma >= 5.1.4beta if .version >= 1.
*
* If this is set to true, the integrity check won't be calculated
* and verified. Unless you know what you are doing, you should
* leave this to false. (A reason to set this to true is when the
* file integrity is verified externally anyway and you want to
* speed up the decompression, which matters mostly when using
* SHA-256 as the integrity check.)
*
* If .version >= 1, read by:
* - lzma_block_decoder()
* - lzma_block_buffer_decode()
*
* Written by (.version is ignored):
* - lzma_block_header_decode() always sets this to false
*/
lzma_bool ignore_check;
lzma_bool reserved_bool1;
lzma_bool reserved_bool2;
lzma_bool reserved_bool3;
lzma_bool reserved_bool4;
@@ -336,21 +310,14 @@ extern LZMA_API(lzma_ret) lzma_block_header_encode(
/**
* \brief Decode Block Header
*
* block->version should (usually) be set to the highest value supported
* by the application. If the application sets block->version to a value
* higher than supported by the current liblzma version, this function will
* downgrade block->version to the highest value supported by it. Thus one
* should check the value of block->version after calling this function if
* block->version was set to a non-zero value and the application doesn't
* otherwise know that the liblzma version being used is new enough to
* support the specified block->version.
* block->version should be set to the highest value supported by the
* application; currently the only possible version is zero. This function
* will set version to the lowest value that still supports all the features
* required by the Block Header.
*
* The size of the Block Header must have already been decoded with
* lzma_block_header_size_decode() macro and stored to block->header_size.
*
* The integrity check type from Stream Header must have been stored
* to block->check.
*
* block->filters must have been allocated, but they don't need to be
* initialized (possible existing filter options are not freed).
*
@@ -374,7 +341,7 @@ extern LZMA_API(lzma_ret) lzma_block_header_encode(
* block->header_size is invalid or block->filters is NULL.
*/
extern LZMA_API(lzma_ret) lzma_block_header_decode(lzma_block *block,
const lzma_allocator *allocator, const uint8_t *in)
lzma_allocator *allocator, const uint8_t *in)
lzma_nothrow lzma_attr_warn_unused_result;
@@ -523,25 +490,7 @@ extern LZMA_API(size_t) lzma_block_buffer_bound(size_t uncompressed_size)
* - LZMA_PROG_ERROR
*/
extern LZMA_API(lzma_ret) lzma_block_buffer_encode(
lzma_block *block, const lzma_allocator *allocator,
const uint8_t *in, size_t in_size,
uint8_t *out, size_t *out_pos, size_t out_size)
lzma_nothrow lzma_attr_warn_unused_result;
/**
* \brief Single-call uncompressed .xz Block encoder
*
* This is like lzma_block_buffer_encode() except this doesn't try to
* compress the data and instead encodes the data using LZMA2 uncompressed
* chunks. The required output buffer size can be determined with
* lzma_block_buffer_bound().
*
* Since the data won't be compressed, this function ignores block->filters.
* This function doesn't take lzma_allocator because this function doesn't
* allocate any memory from the heap.
*/
extern LZMA_API(lzma_ret) lzma_block_uncomp_encode(lzma_block *block,
lzma_block *block, lzma_allocator *allocator,
const uint8_t *in, size_t in_size,
uint8_t *out, size_t *out_pos, size_t out_size)
lzma_nothrow lzma_attr_warn_unused_result;
@@ -575,7 +524,7 @@ extern LZMA_API(lzma_ret) lzma_block_uncomp_encode(lzma_block *block,
* - LZMA_PROG_ERROR
*/
extern LZMA_API(lzma_ret) lzma_block_buffer_decode(
lzma_block *block, const lzma_allocator *allocator,
lzma_block *block, lzma_allocator *allocator,
const uint8_t *in, size_t *in_pos, size_t in_size,
uint8_t *out, size_t *out_pos, size_t out_size)
lzma_nothrow;

222
src/liblzma/api/lzma/container.h
View File

@@ -60,131 +60,6 @@
#define LZMA_PRESET_EXTREME (UINT32_C(1) << 31)
/**
* \brief Multithreading options
*/
typedef struct {
/**
* \brief Flags
*
* Set this to zero if no flags are wanted.
*
* No flags are currently supported.
*/
uint32_t flags;
/**
* \brief Number of worker threads to use
*/
uint32_t threads;
/**
* \brief Maximum uncompressed size of a Block
*
* The encoder will start a new .xz Block every block_size bytes.
* Using LZMA_FULL_FLUSH or LZMA_FULL_BARRIER with lzma_code()
* the caller may tell liblzma to start a new Block earlier.
*
* With LZMA2, a recommended block size is 2-4 times the LZMA2
* dictionary size. With very small dictionaries, it is recommended
* to use at least 1 MiB block size for good compression ratio, even
* if this is more than four times the dictionary size. Note that
* these are only recommendations for typical use cases; feel free
* to use other values. Just keep in mind that using a block size
* less than the LZMA2 dictionary size is waste of RAM.
*
* Set this to 0 to let liblzma choose the block size depending
* on the compression options. For LZMA2 it will be 3*dict_size
* or 1 MiB, whichever is more.
*
* For each thread, about 3 * block_size bytes of memory will be
* allocated. This may change in later liblzma versions. If so,
* the memory usage will probably be reduced, not increased.
*/
uint64_t block_size;
/**
* \brief Timeout to allow lzma_code() to return early
*
* Multithreading can make liblzma to consume input and produce
* output in a very bursty way: it may first read a lot of input
* to fill internal buffers, then no input or output occurs for
* a while.
*
* In single-threaded mode, lzma_code() won't return until it has
* either consumed all the input or filled the output buffer. If
* this is done in multithreaded mode, it may cause a call
* lzma_code() to take even tens of seconds, which isn't acceptable
* in all applications.
*
* To avoid very long blocking times in lzma_code(), a timeout
* (in milliseconds) may be set here. If lzma_code() would block
* longer than this number of milliseconds, it will return with
* LZMA_OK. Reasonable values are 100 ms or more. The xz command
* line tool uses 300 ms.
*
* If long blocking times are fine for you, set timeout to a special
* value of 0, which will disable the timeout mechanism and will make
* lzma_code() block until all the input is consumed or the output
* buffer has been filled.
*
* \note Even with a timeout, lzma_code() might sometimes take
* somewhat long time to return. No timing guarantees
* are made.
*/
uint32_t timeout;
/**
* \brief Compression preset (level and possible flags)
*
* The preset is set just like with lzma_easy_encoder().
* The preset is ignored if filters below is non-NULL.
*/
uint32_t preset;
/**
* \brief Filter chain (alternative to a preset)
*
* If this is NULL, the preset above is used. Otherwise the preset
* is ignored and the filter chain specified here is used.
*/
const lzma_filter *filters;
/**
* \brief Integrity check type
*
* See check.h for available checks. The xz command line tool
* defaults to LZMA_CHECK_CRC64, which is a good choice if you
* are unsure.
*/
lzma_check check;
/*
* Reserved space to allow possible future extensions without
* breaking the ABI. You should not touch these, because the names
* of these variables may change. These are and will never be used
* with the currently supported options, so it is safe to leave these
* uninitialized.
*/
lzma_reserved_enum reserved_enum1;
lzma_reserved_enum reserved_enum2;
lzma_reserved_enum reserved_enum3;
uint32_t reserved_int1;
uint32_t reserved_int2;
uint32_t reserved_int3;
uint32_t reserved_int4;
uint64_t reserved_int5;
uint64_t reserved_int6;
uint64_t reserved_int7;
uint64_t reserved_int8;
void *reserved_ptr1;
void *reserved_ptr2;
void *reserved_ptr3;
void *reserved_ptr4;
} lzma_mt;
/**
* \brief Calculate approximate memory usage of easy encoder
*
@@ -290,8 +165,7 @@ extern LZMA_API(lzma_ret) lzma_easy_encoder(
*/
extern LZMA_API(lzma_ret) lzma_easy_buffer_encode(
uint32_t preset, lzma_check check,
const lzma_allocator *allocator,
const uint8_t *in, size_t in_size,
lzma_allocator *allocator, const uint8_t *in, size_t in_size,
uint8_t *out, size_t *out_pos, size_t out_size) lzma_nothrow;
@@ -316,49 +190,6 @@ extern LZMA_API(lzma_ret) lzma_stream_encoder(lzma_stream *strm,
lzma_nothrow lzma_attr_warn_unused_result;
/**
* \brief Calculate approximate memory usage of multithreaded .xz encoder
*
* Since doing the encoding in threaded mode doesn't affect the memory
* requirements of single-threaded decompressor, you can use
* lzma_easy_decoder_memusage(options->preset) or
* lzma_raw_decoder_memusage(options->filters) to calculate
* the decompressor memory requirements.
*
* \param options Compression options
*
* \return Number of bytes of memory required for encoding with the
* given options. If an error occurs, for example due to
* unsupported preset or filter chain, UINT64_MAX is returned.
*/
extern LZMA_API(uint64_t) lzma_stream_encoder_mt_memusage(
const lzma_mt *options) lzma_nothrow lzma_attr_pure;
/**
* \brief Initialize multithreaded .xz Stream encoder
*
* This provides the functionality of lzma_easy_encoder() and
* lzma_stream_encoder() as a single function for multithreaded use.
*
* The supported actions for lzma_code() are LZMA_RUN, LZMA_FULL_FLUSH,
* LZMA_FULL_BARRIER, and LZMA_FINISH. Support for LZMA_SYNC_FLUSH might be
* added in the future.
*
* \param strm Pointer to properly prepared lzma_stream
* \param options Pointer to multithreaded compression options
*
* \return - LZMA_OK
* - LZMA_MEM_ERROR
* - LZMA_UNSUPPORTED_CHECK
* - LZMA_OPTIONS_ERROR
* - LZMA_PROG_ERROR
*/
extern LZMA_API(lzma_ret) lzma_stream_encoder_mt(
lzma_stream *strm, const lzma_mt *options)
lzma_nothrow lzma_attr_warn_unused_result;
/**
* \brief Initialize .lzma encoder (legacy file format)
*
@@ -438,8 +269,7 @@ extern LZMA_API(size_t) lzma_stream_buffer_bound(size_t uncompressed_size)
*/
extern LZMA_API(lzma_ret) lzma_stream_buffer_encode(
lzma_filter *filters, lzma_check check,
const lzma_allocator *allocator,
const uint8_t *in, size_t in_size,
lzma_allocator *allocator, const uint8_t *in, size_t in_size,
uint8_t *out, size_t *out_pos, size_t out_size)
lzma_nothrow lzma_attr_warn_unused_result;
@@ -474,30 +304,6 @@ extern LZMA_API(lzma_ret) lzma_stream_buffer_encode(
#define LZMA_TELL_ANY_CHECK UINT32_C(0x04)
/**
* This flag makes lzma_code() not calculate and verify the integrity check
* of the compressed data in .xz files. This means that invalid integrity
* check values won't be detected and LZMA_DATA_ERROR won't be returned in
* such cases.
*
* This flag only affects the checks of the compressed data itself; the CRC32
* values in the .xz headers will still be verified normally.
*
* Don't use this flag unless you know what you are doing. Possible reasons
* to use this flag:
*
* - Trying to recover data from a corrupt .xz file.
*
* - Speeding up decompression, which matters mostly with SHA-256
* or with files that have compressed extremely well. It's recommended
* to not use this flag for this purpose unless the file integrity is
* verified externally in some other way.
*
* Support for this flag was added in liblzma 5.1.4beta.
*/
#define LZMA_IGNORE_CHECK UINT32_C(0x10)
/**
* This flag enables decoding of concatenated files with file formats that
* allow concatenating compressed files as is. From the formats currently
@@ -520,10 +326,7 @@ extern LZMA_API(lzma_ret) lzma_stream_buffer_encode(
*
* \param strm Pointer to properly prepared lzma_stream
* \param memlimit Memory usage limit as bytes. Use UINT64_MAX
* to effectively disable the limiter. liblzma
* 5.2.3 and earlier don't allow 0 here and return
* LZMA_PROG_ERROR; later versions treat 0 as if 1
* had been specified.
* to effectively disable the limiter.
* \param flags Bitwise-or of zero or more of the decoder flags:
* LZMA_TELL_NO_CHECK, LZMA_TELL_UNSUPPORTED_CHECK,
* LZMA_TELL_ANY_CHECK, LZMA_CONCATENATED
@@ -547,10 +350,7 @@ extern LZMA_API(lzma_ret) lzma_stream_decoder(
*
* \param strm Pointer to properly prepared lzma_stream
* \param memlimit Memory usage limit as bytes. Use UINT64_MAX
* to effectively disable the limiter. liblzma
* 5.2.3 and earlier don't allow 0 here and return
* LZMA_PROG_ERROR; later versions treat 0 as if 1
* had been specified.
* to effectively disable the limiter.
* \param flags Bitwise-or of flags, or zero for no flags.
*
* \return - LZMA_OK: Initialization was successful.
@@ -566,16 +366,9 @@ extern LZMA_API(lzma_ret) lzma_auto_decoder(
/**
* \brief Initialize .lzma decoder (legacy file format)
*
* \param strm Pointer to properly prepared lzma_stream
* \param memlimit Memory usage limit as bytes. Use UINT64_MAX
* to effectively disable the limiter. liblzma
* 5.2.3 and earlier don't allow 0 here and return
* LZMA_PROG_ERROR; later versions treat 0 as if 1
* had been specified.
*
* Valid `action' arguments to lzma_code() are LZMA_RUN and LZMA_FINISH.
* There is no need to use LZMA_FINISH, but it's allowed because it may
* simplify certain types of applications.
* There is no need to use LZMA_FINISH, but allowing it may simplify
* certain types of applications.
*
* \return - LZMA_OK
* - LZMA_MEM_ERROR
@@ -625,8 +418,7 @@ extern LZMA_API(lzma_ret) lzma_alone_decoder(
* - LZMA_PROG_ERROR
*/
extern LZMA_API(lzma_ret) lzma_stream_buffer_decode(
uint64_t *memlimit, uint32_t flags,
const lzma_allocator *allocator,
uint64_t *memlimit, uint32_t flags, lzma_allocator *allocator,
const uint8_t *in, size_t *in_pos, size_t in_size,
uint8_t *out, size_t *out_pos, size_t out_size)
lzma_nothrow lzma_attr_warn_unused_result;

13
src/liblzma/api/lzma/filter.h
View File

@@ -116,9 +116,8 @@ extern LZMA_API(lzma_bool) lzma_filter_decoder_is_supported(lzma_vli id)
* is not NULL.
* - LZMA_PROG_ERROR: src or dest is NULL.
*/
extern LZMA_API(lzma_ret) lzma_filters_copy(
const lzma_filter *src, lzma_filter *dest,
const lzma_allocator *allocator) lzma_nothrow;
extern LZMA_API(lzma_ret) lzma_filters_copy(const lzma_filter *src,
lzma_filter *dest, lzma_allocator *allocator) lzma_nothrow;
/**
@@ -257,7 +256,7 @@ extern LZMA_API(lzma_ret) lzma_filters_update(
* won't necessarily meet that bound.)
*/
extern LZMA_API(lzma_ret) lzma_raw_buffer_encode(
const lzma_filter *filters, const lzma_allocator *allocator,
const lzma_filter *filters, lzma_allocator *allocator,
const uint8_t *in, size_t in_size, uint8_t *out,
size_t *out_pos, size_t out_size) lzma_nothrow;
@@ -281,7 +280,7 @@ extern LZMA_API(lzma_ret) lzma_raw_buffer_encode(
* which no data is written to is out[out_size].
*/
extern LZMA_API(lzma_ret) lzma_raw_buffer_decode(
const lzma_filter *filters, const lzma_allocator *allocator,
const lzma_filter *filters, lzma_allocator *allocator,
const uint8_t *in, size_t *in_pos, size_t in_size,
uint8_t *out, size_t *out_pos, size_t out_size) lzma_nothrow;
@@ -357,7 +356,7 @@ extern LZMA_API(lzma_ret) lzma_properties_encode(
* - LZMA_MEM_ERROR
*/
extern LZMA_API(lzma_ret) lzma_properties_decode(
lzma_filter *filter, const lzma_allocator *allocator,
lzma_filter *filter, lzma_allocator *allocator,
const uint8_t *props, size_t props_size) lzma_nothrow;
@@ -420,6 +419,6 @@ extern LZMA_API(lzma_ret) lzma_filter_flags_encode(const lzma_filter *filter,
* - LZMA_PROG_ERROR
*/
extern LZMA_API(lzma_ret) lzma_filter_flags_decode(
lzma_filter *filter, const lzma_allocator *allocator,
lzma_filter *filter, lzma_allocator *allocator,
const uint8_t *in, size_t *in_pos, size_t in_size)
lzma_nothrow lzma_attr_warn_unused_result;

14
src/liblzma/api/lzma/hardware.h
View File

@@ -48,17 +48,3 @@
* of RAM on the specific operating system.
*/
extern LZMA_API(uint64_t) lzma_physmem(void) lzma_nothrow;
/**
* \brief Get the number of processor cores or threads
*
* This function may be useful when determining how many threads to use.
* If the hardware supports more than one thread per CPU core, the number
* of hardware threads is returned if that information is available.
*
* \brief On success, the number of available CPU threads or cores is
* returned. If this information isn't available or an error
* occurs, zero is returned.
*/
extern LZMA_API(uint32_t) lzma_cputhreads(void) lzma_nothrow;

34
src/liblzma/api/lzma/index.h
View File

@@ -303,7 +303,7 @@ extern LZMA_API(uint64_t) lzma_index_memused(const lzma_index *i)
* \return On success, a pointer to an empty initialized lzma_index is
* returned. If allocation fails, NULL is returned.
*/
extern LZMA_API(lzma_index *) lzma_index_init(const lzma_allocator *allocator)
extern LZMA_API(lzma_index *) lzma_index_init(lzma_allocator *allocator)
lzma_nothrow;
@@ -312,8 +312,8 @@ extern LZMA_API(lzma_index *) lzma_index_init(const lzma_allocator *allocator)
*
* If i is NULL, this does nothing.
*/
extern LZMA_API(void) lzma_index_end(
lzma_index *i, const lzma_allocator *allocator) lzma_nothrow;
extern LZMA_API(void) lzma_index_end(lzma_index *i, lzma_allocator *allocator)
lzma_nothrow;
/**
@@ -341,7 +341,7 @@ extern LZMA_API(void) lzma_index_end(
* - LZMA_PROG_ERROR
*/
extern LZMA_API(lzma_ret) lzma_index_append(
lzma_index *i, const lzma_allocator *allocator,
lzma_index *i, lzma_allocator *allocator,
lzma_vli unpadded_size, lzma_vli uncompressed_size)
lzma_nothrow lzma_attr_warn_unused_result;
@@ -564,8 +564,8 @@ extern LZMA_API(lzma_bool) lzma_index_iter_locate(
* - LZMA_MEM_ERROR
* - LZMA_PROG_ERROR
*/
extern LZMA_API(lzma_ret) lzma_index_cat(lzma_index *dest, lzma_index *src,
const lzma_allocator *allocator)
extern LZMA_API(lzma_ret) lzma_index_cat(
lzma_index *dest, lzma_index *src, lzma_allocator *allocator)
lzma_nothrow lzma_attr_warn_unused_result;
@@ -575,7 +575,7 @@ extern LZMA_API(lzma_ret) lzma_index_cat(lzma_index *dest, lzma_index *src,
* \return A copy of the lzma_index, or NULL if memory allocation failed.
*/
extern LZMA_API(lzma_index *) lzma_index_dup(
const lzma_index *i, const lzma_allocator *allocator)
const lzma_index *i, lzma_allocator *allocator)
lzma_nothrow lzma_attr_warn_unused_result;
@@ -586,7 +586,8 @@ extern LZMA_API(lzma_index *) lzma_index_dup(
* \param i Pointer to lzma_index which should be encoded.
*
* The valid `action' values for lzma_code() are LZMA_RUN and LZMA_FINISH.
* It is enough to use only one of them (you can choose freely).
* It is enough to use only one of them (you can choose freely; use LZMA_RUN
* to support liblzma versions older than 5.0.0).
*
* \return - LZMA_OK: Initialization succeeded, continue with lzma_code().
* - LZMA_MEM_ERROR
@@ -609,21 +610,16 @@ extern LZMA_API(lzma_ret) lzma_index_encoder(
* to a new lzma_index, which the application
* has to later free with lzma_index_end().
* \param memlimit How much memory the resulting lzma_index is
* allowed to require. liblzma 5.2.3 and earlier
* don't allow 0 here and return LZMA_PROG_ERROR;
* later versions treat 0 as if 1 had been specified.
* allowed to require.
*
* Valid `action' arguments to lzma_code() are LZMA_RUN and LZMA_FINISH.
* There is no need to use LZMA_FINISH, but it's allowed because it may
* simplify certain types of applications.
* The valid `action' values for lzma_code() are LZMA_RUN and LZMA_FINISH.
* It is enough to use only one of them (you can choose freely; use LZMA_RUN
* to support liblzma versions older than 5.0.0).
*
* \return - LZMA_OK: Initialization succeeded, continue with lzma_code().
* - LZMA_MEM_ERROR
* - LZMA_MEMLIMIT_ERROR
* - LZMA_PROG_ERROR
*
* liblzma 5.2.3 and older list also LZMA_MEMLIMIT_ERROR here
* but that error code has never been possible from this
* initialization function.
*/
extern LZMA_API(lzma_ret) lzma_index_decoder(
lzma_stream *strm, lzma_index **i, uint64_t memlimit)
@@ -681,6 +677,6 @@ extern LZMA_API(lzma_ret) lzma_index_buffer_encode(const lzma_index *i,
* - LZMA_PROG_ERROR
*/
extern LZMA_API(lzma_ret) lzma_index_buffer_decode(lzma_index **i,
uint64_t *memlimit, const lzma_allocator *allocator,
uint64_t *memlimit, lzma_allocator *allocator,
const uint8_t *in, size_t *in_pos, size_t in_size)
lzma_nothrow;

4
src/liblzma/api/lzma/index_hash.h
View File

@@ -37,7 +37,7 @@ typedef struct lzma_index_hash_s lzma_index_hash;
* pointer than the index_hash that was given as an argument.
*/
extern LZMA_API(lzma_index_hash *) lzma_index_hash_init(
lzma_index_hash *index_hash, const lzma_allocator *allocator)
lzma_index_hash *index_hash, lzma_allocator *allocator)
lzma_nothrow lzma_attr_warn_unused_result;
@@ -45,7 +45,7 @@ extern LZMA_API(lzma_index_hash *) lzma_index_hash_init(
* \brief Deallocate lzma_index_hash structure
*/
extern LZMA_API(void) lzma_index_hash_end(
lzma_index_hash *index_hash, const lzma_allocator *allocator)
lzma_index_hash *index_hash, lzma_allocator *allocator)
lzma_nothrow;

2
src/liblzma/api/lzma/lzma12.h → src/liblzma/api/lzma/lzma.h
View File

@@ -1,5 +1,5 @@
/**
* \file lzma/lzma12.h
* \file lzma/lzma.h
* \brief LZMA1 and LZMA2 filters
*/

4
src/liblzma/api/lzma/version.h
View File

@@ -21,8 +21,8 @@
* Version number split into components
*/
#define LZMA_VERSION_MAJOR 5
#define LZMA_VERSION_MINOR 2
#define LZMA_VERSION_PATCH 4
#define LZMA_VERSION_MINOR 0
#define LZMA_VERSION_PATCH 3
#define LZMA_VERSION_STABILITY LZMA_VERSION_STABILITY_STABLE
#ifndef LZMA_VERSION_COMMIT

2
src/liblzma/check/Makefile.inc
View File

@@ -47,7 +47,5 @@ endif
endif
if COND_CHECK_SHA256
if COND_INTERNAL_SHA256
liblzma_la_SOURCES += check/sha256.c
endif
endif

93
src/liblzma/check/check.h
View File

@@ -15,53 +15,6 @@
#include "common.h"
// If the function for external SHA-256 is missing, use the internal SHA-256
// code. Due to how configure works, these defines can only get defined when
// both a usable header and a type have already been found.
#if !(defined(HAVE_CC_SHA256_INIT) \
|| defined(HAVE_SHA256_INIT) \
|| defined(HAVE_SHA256INIT))
# define HAVE_INTERNAL_SHA256 1
#endif
#if defined(HAVE_INTERNAL_SHA256)
// Nothing
#elif defined(HAVE_COMMONCRYPTO_COMMONDIGEST_H)
# include <CommonCrypto/CommonDigest.h>
#elif defined(HAVE_SHA256_H)
# include <sys/types.h>
# include <sha256.h>
#elif defined(HAVE_SHA2_H)
# include <sys/types.h>
# include <sha2.h>
#endif
#if defined(HAVE_INTERNAL_SHA256)
/// State for the internal SHA-256 implementation
typedef struct {
/// Internal state
uint32_t state[8];
/// Size of the message excluding padding
uint64_t size;
} lzma_sha256_state;
#elif defined(HAVE_CC_SHA256_CTX)
typedef CC_SHA256_CTX lzma_sha256_state;
#elif defined(HAVE_SHA256_CTX)
typedef SHA256_CTX lzma_sha256_state;
#elif defined(HAVE_SHA2_CTX)
typedef SHA2_CTX lzma_sha256_state;
#endif
#if defined(HAVE_INTERNAL_SHA256)
// Nothing
#elif defined(HAVE_CC_SHA256_INIT)
# define LZMA_SHA256FUNC(x) CC_SHA256_ ## x
#elif defined(HAVE_SHA256_INIT)
# define LZMA_SHA256FUNC(x) SHA256_ ## x
#elif defined(HAVE_SHA256INIT)
# define LZMA_SHA256FUNC(x) SHA256 ## x
#endif
// Index hashing needs the best possible hash function (preferably
// a cryptographic hash) for maximum reliability.
@@ -90,7 +43,14 @@ typedef struct {
union {
uint32_t crc32;
uint64_t crc64;
lzma_sha256_state sha256;
struct {
/// Internal state
uint32_t state[8];
/// Size of the message excluding padding
uint64_t size;
} sha256;
} state;
} lzma_check_state;
@@ -122,8 +82,6 @@ extern void lzma_check_update(lzma_check_state *check, lzma_check type,
extern void lzma_check_finish(lzma_check_state *check, lzma_check type);
#ifndef LZMA_SHA256FUNC
/// Prepare SHA-256 state for new input.
extern void lzma_sha256_init(lzma_check_state *check);
@@ -134,39 +92,4 @@ extern void lzma_sha256_update(
/// Finish the SHA-256 calculation and store the result to check->buffer.u8.
extern void lzma_sha256_finish(lzma_check_state *check);
#else
static inline void
lzma_sha256_init(lzma_check_state *check)
{
LZMA_SHA256FUNC(Init)(&check->state.sha256);
}
static inline void
lzma_sha256_update(const uint8_t *buf, size_t size, lzma_check_state *check)
{
#if defined(HAVE_CC_SHA256_INIT) && SIZE_MAX > UINT32_MAX
// Darwin's CC_SHA256_Update takes uint32_t as the buffer size,
// so use a loop to support size_t.
while (size > UINT32_MAX) {
LZMA_SHA256FUNC(Update)(&check->state.sha256, buf, UINT32_MAX);
buf += UINT32_MAX;
size -= UINT32_MAX;
}
#endif
LZMA_SHA256FUNC(Update)(&check->state.sha256, buf, size);
}
static inline void
lzma_sha256_finish(lzma_check_state *check)
{
LZMA_SHA256FUNC(Final)(check->buffer.u8, &check->state.sha256);
}
#endif
#endif

2
src/liblzma/check/crc32_fast.c
View File

@@ -20,7 +20,7 @@
#include "crc_macros.h"
// If you make any changes, do some benchmarking! Seemingly unrelated
// If you make any changes, do some bench marking! Seemingly unrelated
// changes can very easily ruin the performance (and very probably is
// very compiler dependent).
extern LZMA_API(uint32_t)

65
src/liblzma/check/sha256.c
View File

@@ -6,6 +6,7 @@
/// \todo Crypto++ has x86 ASM optimizations. They use SSE so if they
/// are imported to liblzma, SSE instructions need to be used
/// conditionally to keep the code working on older boxes.
/// We could also support using some external libary for SHA-256.
//
// This code is based on the code found from 7-Zip, which has a modified
// version of the SHA-256 found from Crypto++ <http://www.cryptopp.com/>.
@@ -21,22 +22,22 @@
//
///////////////////////////////////////////////////////////////////////////////
// Avoid bogus warnings in transform().
#if (__GNUC__ == 4 && __GNUC_MINOR__ >= 2) || __GNUC__ > 4
# pragma GCC diagnostic ignored "-Wuninitialized"
#endif
#include "check.h"
// Rotate a uint32_t. GCC can optimize this to a rotate instruction
// at least on x86.
static inline uint32_t
rotr_32(uint32_t num, unsigned amount)
{
return (num >> amount) | (num << (32 - amount));
}
// At least on x86, GCC is able to optimize this to a rotate instruction.
#define rotr_32(num, amount) ((num) >> (amount) | (num) << (32 - (amount)))
#define blk0(i) (W[i] = conv32be(data[i]))
#define blk0(i) (W[i] = data[i])
#define blk2(i) (W[i & 15] += s1(W[(i - 2) & 15]) + W[(i - 7) & 15] \
+ s0(W[(i - 15) & 15]))
#define Ch(x, y, z) (z ^ (x & (y ^ z)))
#define Maj(x, y, z) ((x & (y ^ z)) + (y & z))
#define Maj(x, y, z) ((x & y) | (z & (x | y)))
#define a(i) T[(0 - i) & 7]
#define b(i) T[(1 - i) & 7]
@@ -47,17 +48,16 @@ rotr_32(uint32_t num, unsigned amount)
#define g(i) T[(6 - i) & 7]
#define h(i) T[(7 - i) & 7]
#define R(i, j, blk) \
h(i) += S1(e(i)) + Ch(e(i), f(i), g(i)) + SHA256_K[i + j] + blk; \
#define R(i) \
h(i) += S1(e(i)) + Ch(e(i), f(i), g(i)) + SHA256_K[i + j] \
+ (j ? blk2(i) : blk0(i)); \
d(i) += h(i); \
h(i) += S0(a(i)) + Maj(a(i), b(i), c(i))
#define R0(i) R(i, 0, blk0(i))
#define R2(i) R(i, j, blk2(i))
#define S0(x) rotr_32(x ^ rotr_32(x ^ rotr_32(x, 9), 11), 2)
#define S1(x) rotr_32(x ^ rotr_32(x ^ rotr_32(x, 14), 5), 6)
#define s0(x) (rotr_32(x ^ rotr_32(x, 11), 7) ^ (x >> 3))
#define s1(x) (rotr_32(x ^ rotr_32(x, 2), 17) ^ (x >> 10))
#define S0(x) (rotr_32(x, 2) ^ rotr_32(x, 13) ^ rotr_32(x, 22))
#define S1(x) (rotr_32(x, 6) ^ rotr_32(x, 11) ^ rotr_32(x, 25))
#define s0(x) (rotr_32(x, 7) ^ rotr_32(x, 18) ^ (x >> 3))
#define s1(x) (rotr_32(x, 17) ^ rotr_32(x, 19) ^ (x >> 10))
static const uint32_t SHA256_K[64] = {
@@ -81,7 +81,7 @@ static const uint32_t SHA256_K[64] = {
static void
transform(uint32_t state[8], const uint32_t data[16])
transform(uint32_t state[static 8], const uint32_t data[static 16])
{
uint32_t W[16];
uint32_t T[8];
@@ -89,18 +89,12 @@ transform(uint32_t state[8], const uint32_t data[16])
// Copy state[] to working vars.
memcpy(T, state, sizeof(T));
// The first 16 operations unrolled
R0( 0); R0( 1); R0( 2); R0( 3);
R0( 4); R0( 5); R0( 6); R0( 7);
R0( 8); R0( 9); R0(10); R0(11);
R0(12); R0(13); R0(14); R0(15);
// The remaining 48 operations partially unrolled
for (unsigned int j = 16; j < 64; j += 16) {
R2( 0); R2( 1); R2( 2); R2( 3);
R2( 4); R2( 5); R2( 6); R2( 7);
R2( 8); R2( 9); R2(10); R2(11);
R2(12); R2(13); R2(14); R2(15);
// 64 operations, partially loop unrolled
for (unsigned int j = 0; j < 64; j += 16) {
R( 0); R( 1); R( 2); R( 3);
R( 4); R( 5); R( 6); R( 7);
R( 8); R( 9); R(10); R(11);
R(12); R(13); R(14); R(15);
}
// Add the working vars back into state[].
@@ -118,7 +112,18 @@ transform(uint32_t state[8], const uint32_t data[16])
static void
process(lzma_check_state *check)
{
#ifdef WORDS_BIGENDIAN
transform(check->state.sha256.state, check->buffer.u32);
#else
uint32_t data[16];
for (size_t i = 0; i < 16; ++i)
data[i] = bswap32(check->buffer.u32[i]);
transform(check->state.sha256.state, data);
#endif
return;
}

14
src/liblzma/common/Makefile.inc
View File

@@ -8,7 +8,6 @@
liblzma_la_SOURCES += \
common/common.c \
common/common.h \
common/memcmplen.h \
common/block_util.c \
common/easy_preset.c \
common/easy_preset.h \
@@ -21,15 +20,10 @@ liblzma_la_SOURCES += \
common/stream_flags_common.h \
common/vli_size.c
if COND_THREADS
liblzma_la_SOURCES += common/hardware_cputhreads.c
endif
if COND_MAIN_ENCODER
liblzma_la_SOURCES += \
common/alone_encoder.c \
common/block_buffer_encoder.c \
common/block_buffer_encoder.h \
common/block_encoder.c \
common/block_encoder.h \
common/block_header_encoder.c \
@@ -44,15 +38,9 @@ liblzma_la_SOURCES += \
common/index_encoder.h \
common/stream_buffer_encoder.c \
common/stream_encoder.c \
common/stream_encoder.h \
common/stream_flags_encoder.c \
common/vli_encoder.c
if COND_THREADS
liblzma_la_SOURCES += \
common/outqueue.c \
common/outqueue.h \
common/stream_encoder_mt.c
endif
endif
if COND_MAIN_DECODER

69
src/liblzma/common/alone_decoder.c
View File

@@ -15,7 +15,7 @@
#include "lz_decoder.h"
typedef struct {
struct lzma_coder_s {
lzma_next_coder next;
enum {
@@ -26,11 +26,6 @@ typedef struct {
SEQ_CODE,
} sequence;
/// If true, reject files that are unlikely to be .lzma files.
/// If false, more non-.lzma files get accepted and will give
/// LZMA_DATA_ERROR either immediately or after a few output bytes.
bool picky;
/// Position in the header fields
size_t pos;
@@ -46,19 +41,17 @@ typedef struct {
/// Options decoded from the header needed to initialize
/// the LZMA decoder
lzma_options_lzma options;
} lzma_alone_coder;
};
static lzma_ret
alone_decode(void *coder_ptr,
const lzma_allocator *allocator lzma_attribute((__unused__)),
alone_decode(lzma_coder *coder,
lzma_allocator *allocator lzma_attribute((__unused__)),
const uint8_t *restrict in, size_t *restrict in_pos,
size_t in_size, uint8_t *restrict out,
size_t *restrict out_pos, size_t out_size,
lzma_action action)
{
lzma_alone_coder *coder = coder_ptr;
while (*out_pos < out_size
&& (coder->sequence == SEQ_CODE || *in_pos < in_size))
switch (coder->sequence) {
@@ -75,13 +68,13 @@ alone_decode(void *coder_ptr,
|= (size_t)(in[*in_pos]) << (coder->pos * 8);
if (++coder->pos == 4) {
if (coder->picky && coder->options.dict_size
!= UINT32_MAX) {
if (coder->options.dict_size != UINT32_MAX) {
// A hack to ditch tons of false positives:
// We allow only dictionary sizes that are
// 2^n or 2^n + 2^(n-1). LZMA_Alone created
// only files with 2^n, but accepts any
// dictionary size.
// dictionary size. If someone complains, this
// will be reconsidered.
uint32_t d = coder->options.dict_size - 1;
d |= d >> 2;
d |= d >> 3;
@@ -110,9 +103,9 @@ alone_decode(void *coder_ptr,
// Another hack to ditch false positives: Assume that
// if the uncompressed size is known, it must be less
// than 256 GiB.
if (coder->picky
&& coder->uncompressed_size != LZMA_VLI_UNKNOWN
// than 256 GiB. Again, if someone complains, this
// will be reconsidered.
if (coder->uncompressed_size != LZMA_VLI_UNKNOWN
&& coder->uncompressed_size
>= (LZMA_VLI_C(1) << 38))
return LZMA_FORMAT_ERROR;
@@ -168,9 +161,8 @@ alone_decode(void *coder_ptr,
static void
alone_decoder_end(void *coder_ptr, const lzma_allocator *allocator)
alone_decoder_end(lzma_coder *coder, lzma_allocator *allocator)
{
lzma_alone_coder *coder = coder_ptr;
lzma_next_end(&coder->next, allocator);
lzma_free(coder, allocator);
return;
@@ -178,11 +170,9 @@ alone_decoder_end(void *coder_ptr, const lzma_allocator *allocator)
static lzma_ret
alone_decoder_memconfig(void *coder_ptr, uint64_t *memusage,
alone_decoder_memconfig(lzma_coder *coder, uint64_t *memusage,
uint64_t *old_memlimit, uint64_t new_memlimit)
{
lzma_alone_coder *coder = coder_ptr;
*memusage = coder->memusage;
*old_memlimit = coder->memlimit;
@@ -198,34 +188,33 @@ alone_decoder_memconfig(void *coder_ptr, uint64_t *memusage,
extern lzma_ret
lzma_alone_decoder_init(lzma_next_coder *next, const lzma_allocator *allocator,
uint64_t memlimit, bool picky)
lzma_alone_decoder_init(lzma_next_coder *next, lzma_allocator *allocator,
uint64_t memlimit)
{
lzma_next_coder_init(&lzma_alone_decoder_init, next, allocator);
lzma_alone_coder *coder = next->coder;
if (memlimit == 0)
return LZMA_PROG_ERROR;
if (coder == NULL) {
coder = lzma_alloc(sizeof(lzma_alone_coder), allocator);
if (coder == NULL)
if (next->coder == NULL) {
next->coder = lzma_alloc(sizeof(lzma_coder), allocator);
if (next->coder == NULL)
return LZMA_MEM_ERROR;
next->coder = coder;
next->code = &alone_decode;
next->end = &alone_decoder_end;
next->memconfig = &alone_decoder_memconfig;
coder->next = LZMA_NEXT_CODER_INIT;
next->coder->next = LZMA_NEXT_CODER_INIT;
}
coder->sequence = SEQ_PROPERTIES;
coder->picky = picky;
coder->pos = 0;
coder->options.dict_size = 0;
coder->options.preset_dict = NULL;
coder->options.preset_dict_size = 0;
coder->uncompressed_size = 0;
coder->memlimit = my_max(1, memlimit);
coder->memusage = LZMA_MEMUSAGE_BASE;
next->coder->sequence = SEQ_PROPERTIES;
next->coder->pos = 0;
next->coder->options.dict_size = 0;
next->coder->options.preset_dict = NULL;
next->coder->options.preset_dict_size = 0;
next->coder->uncompressed_size = 0;
next->coder->memlimit = memlimit;
next->coder->memusage = LZMA_MEMUSAGE_BASE;
return LZMA_OK;
}
@@ -234,7 +223,7 @@ lzma_alone_decoder_init(lzma_next_coder *next, const lzma_allocator *allocator,
extern LZMA_API(lzma_ret)
lzma_alone_decoder(lzma_stream *strm, uint64_t memlimit)
{
lzma_next_strm_init(lzma_alone_decoder_init, strm, memlimit, false);
lzma_next_strm_init(lzma_alone_decoder_init, strm, memlimit);
strm->internal->supported_actions[LZMA_RUN] = true;
strm->internal->supported_actions[LZMA_FINISH] = true;

5
src/liblzma/common/alone_decoder.h
View File

@@ -16,8 +16,7 @@
#include "common.h"
extern lzma_ret lzma_alone_decoder_init(
lzma_next_coder *next, const lzma_allocator *allocator,
uint64_t memlimit, bool picky);
extern lzma_ret lzma_alone_decoder_init(lzma_next_coder *next,
lzma_allocator *allocator, uint64_t memlimit);
#endif

40
src/liblzma/common/alone_encoder.c
View File

@@ -17,7 +17,7 @@
#define ALONE_HEADER_SIZE (1 + 4 + 8)
typedef struct {
struct lzma_coder_s {
lzma_next_coder next;
enum {
@@ -27,19 +27,17 @@ typedef struct {
size_t header_pos;
uint8_t header[ALONE_HEADER_SIZE];
} lzma_alone_coder;
};
static lzma_ret
alone_encode(void *coder_ptr,
const lzma_allocator *allocator lzma_attribute((__unused__)),
alone_encode(lzma_coder *coder,
lzma_allocator *allocator lzma_attribute((__unused__)),
const uint8_t *restrict in, size_t *restrict in_pos,
size_t in_size, uint8_t *restrict out,
size_t *restrict out_pos, size_t out_size,
lzma_action action)
{
lzma_alone_coder *coder = coder_ptr;
while (*out_pos < out_size)
switch (coder->sequence) {
case SEQ_HEADER:
@@ -67,9 +65,8 @@ alone_encode(void *coder_ptr,
static void
alone_encoder_end(void *coder_ptr, const lzma_allocator *allocator)
alone_encoder_end(lzma_coder *coder, lzma_allocator *allocator)
{
lzma_alone_coder *coder = coder_ptr;
lzma_next_end(&coder->next, allocator);
lzma_free(coder, allocator);
return;
@@ -78,31 +75,28 @@ alone_encoder_end(void *coder_ptr, const lzma_allocator *allocator)
// At least for now, this is not used by any internal function.
static lzma_ret
alone_encoder_init(lzma_next_coder *next, const lzma_allocator *allocator,
alone_encoder_init(lzma_next_coder *next, lzma_allocator *allocator,
const lzma_options_lzma *options)
{
lzma_next_coder_init(&alone_encoder_init, next, allocator);
lzma_alone_coder *coder = next->coder;
if (coder == NULL) {
coder = lzma_alloc(sizeof(lzma_alone_coder), allocator);
if (coder == NULL)
if (next->coder == NULL) {
next->coder = lzma_alloc(sizeof(lzma_coder), allocator);
if (next->coder == NULL)
return LZMA_MEM_ERROR;
next->coder = coder;
next->code = &alone_encode;
next->end = &alone_encoder_end;
coder->next = LZMA_NEXT_CODER_INIT;
next->coder->next = LZMA_NEXT_CODER_INIT;
}
// Basic initializations
coder->sequence = SEQ_HEADER;
coder->header_pos = 0;
next->coder->sequence = SEQ_HEADER;
next->coder->header_pos = 0;
// Encode the header:
// - Properties (1 byte)
if (lzma_lzma_lclppb_encode(options, coder->header))
if (lzma_lzma_lclppb_encode(options, next->coder->header))
return LZMA_OPTIONS_ERROR;
// - Dictionary size (4 bytes)
@@ -122,10 +116,10 @@ alone_encoder_init(lzma_next_coder *next, const lzma_allocator *allocator,
if (d != UINT32_MAX)
++d;
unaligned_write32le(coder->header + 1, d);
unaligned_write32le(next->coder->header + 1, d);
// - Uncompressed size (always unknown and using EOPM)
memset(coder->header + 1 + 4, 0xFF, 8);
memset(next->coder->header + 1 + 4, 0xFF, 8);
// Initialize the LZMA encoder.
const lzma_filter_info filters[2] = {
@@ -137,13 +131,13 @@ alone_encoder_init(lzma_next_coder *next, const lzma_allocator *allocator,
}
};
return lzma_next_filter_init(&coder->next, allocator, filters);
return lzma_next_filter_init(&next->coder->next, allocator, filters);
}
/*
extern lzma_ret
lzma_alone_encoder_init(lzma_next_coder *next, const lzma_allocator *allocator,
lzma_alone_encoder_init(lzma_next_coder *next, lzma_allocator *allocator,
const lzma_options_alone *options)
{
lzma_next_coder_init(&alone_encoder_init, next, allocator, options);

45
src/liblzma/common/auto_decoder.c
View File

@@ -14,7 +14,7 @@
#include "alone_decoder.h"
typedef struct {
struct lzma_coder_s {
/// Stream decoder or LZMA_Alone decoder
lzma_next_coder next;
@@ -26,17 +26,15 @@ typedef struct {
SEQ_CODE,
SEQ_FINISH,
} sequence;
} lzma_auto_coder;
};
static lzma_ret
auto_decode(void *coder_ptr, const lzma_allocator *allocator,
auto_decode(lzma_coder *coder, lzma_allocator *allocator,
const uint8_t *restrict in, size_t *restrict in_pos,
size_t in_size, uint8_t *restrict out,
size_t *restrict out_pos, size_t out_size, lzma_action action)
{
lzma_auto_coder *coder = coder_ptr;
switch (coder->sequence) {
case SEQ_INIT:
if (*in_pos >= in_size)
@@ -56,7 +54,7 @@ auto_decode(void *coder_ptr, const lzma_allocator *allocator,
coder->memlimit, coder->flags));
} else {
return_if_error(lzma_alone_decoder_init(&coder->next,
allocator, coder->memlimit, true));
allocator, coder->memlimit));
// If the application wants to know about missing
// integrity check or about the check in general, we
@@ -102,9 +100,8 @@ auto_decode(void *coder_ptr, const lzma_allocator *allocator,
static void
auto_decoder_end(void *coder_ptr, const lzma_allocator *allocator)
auto_decoder_end(lzma_coder *coder, lzma_allocator *allocator)
{
lzma_auto_coder *coder = coder_ptr;
lzma_next_end(&coder->next, allocator);
lzma_free(coder, allocator);
return;
@@ -112,10 +109,8 @@ auto_decoder_end(void *coder_ptr, const lzma_allocator *allocator)
static lzma_check
auto_decoder_get_check(const void *coder_ptr)
auto_decoder_get_check(const lzma_coder *coder)
{
const lzma_auto_coder *coder = coder_ptr;
// It is LZMA_Alone if get_check is NULL.
return coder->next.get_check == NULL ? LZMA_CHECK_NONE
: coder->next.get_check(coder->next.coder);
@@ -123,11 +118,9 @@ auto_decoder_get_check(const void *coder_ptr)
static lzma_ret
auto_decoder_memconfig(void *coder_ptr, uint64_t *memusage,
auto_decoder_memconfig(lzma_coder *coder, uint64_t *memusage,
uint64_t *old_memlimit, uint64_t new_memlimit)
{
lzma_auto_coder *coder = coder_ptr;
lzma_ret ret;
if (coder->next.memconfig != NULL) {
@@ -139,10 +132,7 @@ auto_decoder_memconfig(void *coder_ptr, uint64_t *memusage,
// the current memory usage.
*memusage = LZMA_MEMUSAGE_BASE;
*old_memlimit = coder->memlimit;
ret = LZMA_OK;
if (new_memlimit != 0 && new_memlimit < *memusage)
ret = LZMA_MEMLIMIT_ERROR;
}
if (ret == LZMA_OK && new_memlimit != 0)
@@ -153,31 +143,32 @@ auto_decoder_memconfig(void *coder_ptr, uint64_t *memusage,
static lzma_ret
auto_decoder_init(lzma_next_coder *next, const lzma_allocator *allocator,
auto_decoder_init(lzma_next_coder *next, lzma_allocator *allocator,
uint64_t memlimit, uint32_t flags)
{
lzma_next_coder_init(&auto_decoder_init, next, allocator);
if (memlimit == 0)
return LZMA_PROG_ERROR;
if (flags & ~LZMA_SUPPORTED_FLAGS)
return LZMA_OPTIONS_ERROR;
lzma_auto_coder *coder = next->coder;
if (coder == NULL) {
coder = lzma_alloc(sizeof(lzma_auto_coder), allocator);
if (coder == NULL)
if (next->coder == NULL) {
next->coder = lzma_alloc(sizeof(lzma_coder), allocator);
if (next->coder == NULL)
return LZMA_MEM_ERROR;
next->coder = coder;
next->code = &auto_decode;
next->end = &auto_decoder_end;
next->get_check = &auto_decoder_get_check;
next->memconfig = &auto_decoder_memconfig;
coder->next = LZMA_NEXT_CODER_INIT;
next->coder->next = LZMA_NEXT_CODER_INIT;
}
coder->memlimit = my_max(1, memlimit);
coder->flags = flags;
coder->sequence = SEQ_INIT;
next->coder->memlimit = memlimit;
next->coder->flags = flags;
next->coder->sequence = SEQ_INIT;
return LZMA_OK;
}

2
src/liblzma/common/block_buffer_decoder.c
View File

@@ -14,7 +14,7 @@
extern LZMA_API(lzma_ret)
lzma_block_buffer_decode(lzma_block *block, const lzma_allocator *allocator,
lzma_block_buffer_decode(lzma_block *block, lzma_allocator *allocator,
const uint8_t *in, size_t *in_pos, size_t in_size,
uint8_t *out, size_t *out_pos, size_t out_size)
{

98
src/liblzma/common/block_buffer_encoder.c
View File

@@ -10,7 +10,6 @@
//
///////////////////////////////////////////////////////////////////////////////
#include "block_buffer_encoder.h"
#include "block_encoder.h"
#include "filter_encoder.h"
#include "lzma2_encoder.h"
@@ -29,8 +28,8 @@
+ LZMA_CHECK_SIZE_MAX + 3) & ~3)
static uint64_t
lzma2_bound(uint64_t uncompressed_size)
static lzma_vli
lzma2_bound(lzma_vli uncompressed_size)
{
// Prevent integer overflow in overhead calculation.
if (uncompressed_size > COMPRESSED_SIZE_MAX)
@@ -40,7 +39,7 @@ lzma2_bound(uint64_t uncompressed_size)
// uncompressed_size up to the next multiple of LZMA2_CHUNK_MAX,
// multiply by the size of per-chunk header, and add one byte for
// the end marker.
const uint64_t overhead = ((uncompressed_size + LZMA2_CHUNK_MAX - 1)
const lzma_vli overhead = ((uncompressed_size + LZMA2_CHUNK_MAX - 1)
/ LZMA2_CHUNK_MAX)
* LZMA2_HEADER_UNCOMPRESSED + 1;
@@ -52,36 +51,30 @@ lzma2_bound(uint64_t uncompressed_size)
}
extern uint64_t
lzma_block_buffer_bound64(uint64_t uncompressed_size)
extern LZMA_API(size_t)
lzma_block_buffer_bound(size_t uncompressed_size)
{
// If the data doesn't compress, we always use uncompressed
// LZMA2 chunks.
uint64_t lzma2_size = lzma2_bound(uncompressed_size);
// For now, if the data doesn't compress, we always use uncompressed
// chunks of LZMA2. In future we may use Subblock filter too, but
// but for simplicity we probably will still use the same bound
// calculation even though Subblock filter would have slightly less
// overhead.
lzma_vli lzma2_size = lzma2_bound(uncompressed_size);
if (lzma2_size == 0)
return 0;
// Take Block Padding into account.
lzma2_size = (lzma2_size + 3) & ~UINT64_C(3);
lzma2_size = (lzma2_size + 3) & ~LZMA_VLI_C(3);
// No risk of integer overflow because lzma2_bound() already takes
#if SIZE_MAX < LZMA_VLI_MAX
// Catch the possible integer overflow on 32-bit systems. There's no
// overflow on 64-bit systems, because lzma2_bound() already takes
// into account the size of the headers in the Block.
return HEADERS_BOUND + lzma2_size;
}
extern LZMA_API(size_t)
lzma_block_buffer_bound(size_t uncompressed_size)
{
uint64_t ret = lzma_block_buffer_bound64(uncompressed_size);
#if SIZE_MAX < UINT64_MAX
// Catch the possible integer overflow on 32-bit systems.
if (ret > SIZE_MAX)
if (SIZE_MAX - HEADERS_BOUND < lzma2_size)
return 0;
#endif
return ret;
return HEADERS_BOUND + lzma2_size;
}
@@ -89,6 +82,9 @@ static lzma_ret
block_encode_uncompressed(lzma_block *block, const uint8_t *in, size_t in_size,
uint8_t *out, size_t *out_pos, size_t out_size)
{
// TODO: Figure out if the last filter is LZMA2 or Subblock and use
// that filter to encode the uncompressed chunks.
// Use LZMA2 uncompressed chunks. We wouldn't need a dictionary at
// all, but LZMA2 always requires a dictionary, so use the minimum
// value to minimize memory usage of the decoder.
@@ -164,11 +160,16 @@ block_encode_uncompressed(lzma_block *block, const uint8_t *in, size_t in_size,
static lzma_ret
block_encode_normal(lzma_block *block, const lzma_allocator *allocator,
block_encode_normal(lzma_block *block, lzma_allocator *allocator,
const uint8_t *in, size_t in_size,
uint8_t *out, size_t *out_pos, size_t out_size)
{
// Find out the size of the Block Header.
block->compressed_size = lzma2_bound(in_size);
if (block->compressed_size == 0)
return LZMA_DATA_ERROR;
block->uncompressed_size = in_size;
return_if_error(lzma_block_header_size(block));
// Reserve space for the Block Header and skip it for now.
@@ -220,11 +221,10 @@ block_encode_normal(lzma_block *block, const lzma_allocator *allocator,
}
static lzma_ret
block_buffer_encode(lzma_block *block, const lzma_allocator *allocator,
extern LZMA_API(lzma_ret)
lzma_block_buffer_encode(lzma_block *block, lzma_allocator *allocator,
const uint8_t *in, size_t in_size,
uint8_t *out, size_t *out_pos, size_t out_size,
bool try_to_compress)
uint8_t *out, size_t *out_pos, size_t out_size)
{
// Validate the arguments.
if (block == NULL || (in == NULL && in_size != 0) || out == NULL
@@ -233,11 +233,11 @@ block_buffer_encode(lzma_block *block, const lzma_allocator *allocator,
// The contents of the structure may depend on the version so
// check the version before validating the contents of *block.
if (block->version > 1)
if (block->version != 0)
return LZMA_OPTIONS_ERROR;
if ((unsigned int)(block->check) > LZMA_CHECK_ID_MAX
|| (try_to_compress && block->filters == NULL))
|| block->filters == NULL)
return LZMA_PROG_ERROR;
if (!lzma_check_is_supported(block->check))
@@ -258,19 +258,9 @@ block_buffer_encode(lzma_block *block, const lzma_allocator *allocator,
out_size -= check_size;
// Initialize block->uncompressed_size and calculate the worst-case
// value for block->compressed_size.
block->uncompressed_size = in_size;
block->compressed_size = lzma2_bound(in_size);
if (block->compressed_size == 0)
return LZMA_DATA_ERROR;
// Do the actual compression.
lzma_ret ret = LZMA_BUF_ERROR;
if (try_to_compress)
ret = block_encode_normal(block, allocator,
in, in_size, out, out_pos, out_size);
const lzma_ret ret = block_encode_normal(block, allocator,
in, in_size, out, out_pos, out_size);
if (ret != LZMA_OK) {
// If the error was something else than output buffer
// becoming full, return the error now.
@@ -313,25 +303,3 @@ block_buffer_encode(lzma_block *block, const lzma_allocator *allocator,
return LZMA_OK;
}
extern LZMA_API(lzma_ret)
lzma_block_buffer_encode(lzma_block *block, const lzma_allocator *allocator,
const uint8_t *in, size_t in_size,
uint8_t *out, size_t *out_pos, size_t out_size)
{
return block_buffer_encode(block, allocator,
in, in_size, out, out_pos, out_size, true);
}
extern LZMA_API(lzma_ret)
lzma_block_uncomp_encode(lzma_block *block,
const uint8_t *in, size_t in_size,
uint8_t *out, size_t *out_pos, size_t out_size)
{
// It won't allocate any memory from heap so no need
// for lzma_allocator.
return block_buffer_encode(block, NULL,
in, in_size, out, out_pos, out_size, false);
}

24
src/liblzma/common/block_buffer_encoder.h
View File

@@ -1,24 +0,0 @@
///////////////////////////////////////////////////////////////////////////////
//
/// \file block_buffer_encoder.h
/// \brief Single-call .xz Block encoder
//
// Author: Lasse Collin
//
// This file has been put into the public domain.
// You can do whatever you want with this file.
//
///////////////////////////////////////////////////////////////////////////////
#ifndef LZMA_BLOCK_BUFFER_ENCODER_H
#define LZMA_BLOCK_BUFFER_ENCODER_H
#include "common.h"
/// uint64_t version of lzma_block_buffer_bound(). It is used by
/// stream_encoder_mt.c. Probably the original lzma_block_buffer_bound()
/// should have been 64-bit, but fixing it would break the ABI.
extern uint64_t lzma_block_buffer_bound64(uint64_t uncompressed_size);
#endif

59
src/liblzma/common/block_decoder.c
View File

@@ -15,7 +15,7 @@
#include "check.h"
typedef struct {
struct lzma_coder_s {
enum {
SEQ_CODE,
SEQ_PADDING,
@@ -45,10 +45,7 @@ typedef struct {
/// Check of the uncompressed data
lzma_check_state check;
/// True if the integrity check won't be calculated and verified.
bool ignore_check;
} lzma_block_coder;
};
static inline bool
@@ -74,13 +71,11 @@ is_size_valid(lzma_vli size, lzma_vli reference)
static lzma_ret
block_decode(void *coder_ptr, const lzma_allocator *allocator,
block_decode(lzma_coder *coder, lzma_allocator *allocator,
const uint8_t *restrict in, size_t *restrict in_pos,
size_t in_size, uint8_t *restrict out,
size_t *restrict out_pos, size_t out_size, lzma_action action)
{
lzma_block_coder *coder = coder_ptr;
switch (coder->sequence) {
case SEQ_CODE: {
const size_t in_start = *in_pos;
@@ -102,9 +97,8 @@ block_decode(void *coder_ptr, const lzma_allocator *allocator,
coder->block->uncompressed_size))
return LZMA_DATA_ERROR;
if (!coder->ignore_check)
lzma_check_update(&coder->check, coder->block->check,
out + out_start, out_used);
lzma_check_update(&coder->check, coder->block->check,
out + out_start, out_used);
if (ret != LZMA_STREAM_END)
return ret;
@@ -146,9 +140,7 @@ block_decode(void *coder_ptr, const lzma_allocator *allocator,
if (coder->block->check == LZMA_CHECK_NONE)
return LZMA_STREAM_END;
if (!coder->ignore_check)
lzma_check_finish(&coder->check, coder->block->check);
lzma_check_finish(&coder->check, coder->block->check);
coder->sequence = SEQ_CHECK;
// Fall through
@@ -163,8 +155,7 @@ block_decode(void *coder_ptr, const lzma_allocator *allocator,
// Validate the Check only if we support it.
// coder->check.buffer may be uninitialized
// when the Check ID is not supported.
if (!coder->ignore_check
&& lzma_check_is_supported(coder->block->check)
if (lzma_check_is_supported(coder->block->check)
&& memcmp(coder->block->raw_check,
coder->check.buffer.u8,
check_size) != 0)
@@ -179,9 +170,8 @@ block_decode(void *coder_ptr, const lzma_allocator *allocator,
static void
block_decoder_end(void *coder_ptr, const lzma_allocator *allocator)
block_decoder_end(lzma_coder *coder, lzma_allocator *allocator)
{
lzma_block_coder *coder = coder_ptr;
lzma_next_end(&coder->next, allocator);
lzma_free(coder, allocator);
return;
@@ -189,7 +179,7 @@ block_decoder_end(void *coder_ptr, const lzma_allocator *allocator)
extern lzma_ret
lzma_block_decoder_init(lzma_next_coder *next, const lzma_allocator *allocator,
lzma_block_decoder_init(lzma_next_coder *next, lzma_allocator *allocator,
lzma_block *block)
{
lzma_next_coder_init(&lzma_block_decoder_init, next, allocator);
@@ -201,29 +191,27 @@ lzma_block_decoder_init(lzma_next_coder *next, const lzma_allocator *allocator,
|| !lzma_vli_is_valid(block->uncompressed_size))
return LZMA_PROG_ERROR;
// Allocate *next->coder if needed.
lzma_block_coder *coder = next->coder;
if (coder == NULL) {
coder = lzma_alloc(sizeof(lzma_block_coder), allocator);
if (coder == NULL)
// Allocate and initialize *next->coder if needed.
if (next->coder == NULL) {
next->coder = lzma_alloc(sizeof(lzma_coder), allocator);
if (next->coder == NULL)
return LZMA_MEM_ERROR;
next->coder = coder;
next->code = &block_decode;
next->end = &block_decoder_end;
coder->next = LZMA_NEXT_CODER_INIT;
next->coder->next = LZMA_NEXT_CODER_INIT;
}
// Basic initializations
coder->sequence = SEQ_CODE;
coder->block = block;
coder->compressed_size = 0;
coder->uncompressed_size = 0;
next->coder->sequence = SEQ_CODE;
next->coder->block = block;
next->coder->compressed_size = 0;
next->coder->uncompressed_size = 0;
// If Compressed Size is not known, we calculate the maximum allowed
// value so that encoded size of the Block (including Block Padding)
// is still a valid VLI and a multiple of four.
coder->compressed_limit
next->coder->compressed_limit
= block->compressed_size == LZMA_VLI_UNKNOWN
? (LZMA_VLI_MAX & ~LZMA_VLI_C(3))
- block->header_size
@@ -233,14 +221,11 @@ lzma_block_decoder_init(lzma_next_coder *next, const lzma_allocator *allocator,
// Initialize the check. It's caller's problem if the Check ID is not
// supported, and the Block decoder cannot verify the Check field.
// Caller can test lzma_check_is_supported(block->check).
coder->check_pos = 0;
lzma_check_init(&coder->check, block->check);
coder->ignore_check = block->version >= 1
? block->ignore_check : false;
next->coder->check_pos = 0;
lzma_check_init(&next->coder->check, block->check);
// Initialize the filter chain.
return lzma_raw_decoder_init(&coder->next, allocator,
return lzma_raw_decoder_init(&next->coder->next, allocator,
block->filters);
}

2
src/liblzma/common/block_decoder.h
View File

@@ -17,6 +17,6 @@
extern lzma_ret lzma_block_decoder_init(lzma_next_coder *next,
const lzma_allocator *allocator, lzma_block *block);
lzma_allocator *allocator, lzma_block *block);
#endif

44
src/liblzma/common/block_encoder.c
View File

@@ -15,7 +15,7 @@
#include "check.h"
typedef struct {
struct lzma_coder_s {
/// The filters in the chain; initialized with lzma_raw_decoder_init().
lzma_next_coder next;
@@ -41,17 +41,15 @@ typedef struct {
/// Check of the uncompressed data
lzma_check_state check;
} lzma_block_coder;
};
static lzma_ret
block_encode(void *coder_ptr, const lzma_allocator *allocator,
block_encode(lzma_coder *coder, lzma_allocator *allocator,
const uint8_t *restrict in, size_t *restrict in_pos,
size_t in_size, uint8_t *restrict out,
size_t *restrict out_pos, size_t out_size, lzma_action action)
{
lzma_block_coder *coder = coder_ptr;
// Check that our amount of input stays in proper limits.
if (LZMA_VLI_MAX - coder->uncompressed_size < in_size - *in_pos)
return LZMA_DATA_ERROR;
@@ -136,9 +134,8 @@ block_encode(void *coder_ptr, const lzma_allocator *allocator,
static void
block_encoder_end(void *coder_ptr, const lzma_allocator *allocator)
block_encoder_end(lzma_coder *coder, lzma_allocator *allocator)
{
lzma_block_coder *coder = coder_ptr;
lzma_next_end(&coder->next, allocator);
lzma_free(coder, allocator);
return;
@@ -146,12 +143,10 @@ block_encoder_end(void *coder_ptr, const lzma_allocator *allocator)
static lzma_ret
block_encoder_update(void *coder_ptr, const lzma_allocator *allocator,
block_encoder_update(lzma_coder *coder, lzma_allocator *allocator,
const lzma_filter *filters lzma_attribute((__unused__)),
const lzma_filter *reversed_filters)
{
lzma_block_coder *coder = coder_ptr;
if (coder->sequence != SEQ_CODE)
return LZMA_PROG_ERROR;
@@ -161,7 +156,7 @@ block_encoder_update(void *coder_ptr, const lzma_allocator *allocator,
extern lzma_ret
lzma_block_encoder_init(lzma_next_coder *next, const lzma_allocator *allocator,
lzma_block_encoder_init(lzma_next_coder *next, lzma_allocator *allocator,
lzma_block *block)
{
lzma_next_coder_init(&lzma_block_encoder_init, next, allocator);
@@ -171,7 +166,7 @@ lzma_block_encoder_init(lzma_next_coder *next, const lzma_allocator *allocator,
// The contents of the structure may depend on the version so
// check the version first.
if (block->version > 1)
if (block->version != 0)
return LZMA_OPTIONS_ERROR;
// If the Check ID is not supported, we cannot calculate the check and
@@ -183,31 +178,30 @@ lzma_block_encoder_init(lzma_next_coder *next, const lzma_allocator *allocator,
return LZMA_UNSUPPORTED_CHECK;
// Allocate and initialize *next->coder if needed.
lzma_block_coder *coder = next->coder;
if (coder == NULL) {
coder = lzma_alloc(sizeof(lzma_block_coder), allocator);
if (coder == NULL)
if (next->coder == NULL) {
next->coder = lzma_alloc(sizeof(lzma_coder), allocator);
if (next->coder == NULL)
return LZMA_MEM_ERROR;
next->coder = coder;
next->code = &block_encode;
next->end = &block_encoder_end;
next->update = &block_encoder_update;
coder->next = LZMA_NEXT_CODER_INIT;
next->coder->next = LZMA_NEXT_CODER_INIT;
}
// Basic initializations
coder->sequence = SEQ_CODE;
coder->block = block;
coder->compressed_size = 0;
coder->uncompressed_size = 0;
coder->pos = 0;
next->coder->sequence = SEQ_CODE;
next->coder->block = block;
next->coder->compressed_size = 0;
next->coder->uncompressed_size = 0;
next->coder->pos = 0;
// Initialize the check
lzma_check_init(&coder->check, block->check);
lzma_check_init(&next->coder->check, block->check);
// Initialize the requested filters.
return lzma_raw_encoder_init(&coder->next, allocator, block->filters);
return lzma_raw_encoder_init(&next->coder->next, allocator,
block->filters);
}

2
src/liblzma/common/block_encoder.h
View File

@@ -42,6 +42,6 @@
extern lzma_ret lzma_block_encoder_init(lzma_next_coder *next,
const lzma_allocator *allocator, lzma_block *block);
lzma_allocator *allocator, lzma_block *block);
#endif

16
src/liblzma/common/block_header_decoder.c
View File

@@ -15,7 +15,7 @@
static void
free_properties(lzma_block *block, const lzma_allocator *allocator)
free_properties(lzma_block *block, lzma_allocator *allocator)
{
// Free allocated filter options. The last array member is not
// touched after the initialization in the beginning of
@@ -32,7 +32,7 @@ free_properties(lzma_block *block, const lzma_allocator *allocator)
extern LZMA_API(lzma_ret)
lzma_block_header_decode(lzma_block *block,
const lzma_allocator *allocator, const uint8_t *in)
lzma_allocator *allocator, const uint8_t *in)
{
// NOTE: We consider the header to be corrupt not only when the
// CRC32 doesn't match, but also when variable-length integers
@@ -46,16 +46,8 @@ lzma_block_header_decode(lzma_block *block,
block->filters[i].options = NULL;
}
// Versions 0 and 1 are supported. If a newer version was specified,
// we need to downgrade it.
if (block->version > 1)
block->version = 1;
// This isn't a Block Header option, but since the decompressor will
// read it if version >= 1, it's better to initialize it here than
// to expect the caller to do it since in almost all cases this
// should be false.
block->ignore_check = false;
// Always zero for now.
block->version = 0;
// Validate Block Header Size and Check type. The caller must have
// already set these, so it is a programming error if this test fails.

2
src/liblzma/common/block_header_encoder.c
View File

@@ -17,7 +17,7 @@
extern LZMA_API(lzma_ret)
lzma_block_header_size(lzma_block *block)
{
if (block->version > 1)
if (block->version != 0)
return LZMA_OPTIONS_ERROR;
// Block Header Size + Block Flags + CRC32.

2
src/liblzma/common/block_util.c
View File

@@ -51,7 +51,7 @@ lzma_block_unpadded_size(const lzma_block *block)
// NOTE: This function is used for validation too, so it is
// essential that these checks are always done even if
// Compressed Size is unknown.
if (block == NULL || block->version > 1
if (block == NULL || block->version != 0
|| block->header_size < LZMA_BLOCK_HEADER_SIZE_MIN
|| block->header_size > LZMA_BLOCK_HEADER_SIZE_MAX
|| (block->header_size & 3)

85
src/liblzma/common/common.c
View File

@@ -36,7 +36,7 @@ lzma_version_string(void)
///////////////////////
extern void * lzma_attribute((__malloc__)) lzma_attr_alloc_size(1)
lzma_alloc(size_t size, const lzma_allocator *allocator)
lzma_alloc(size_t size, lzma_allocator *allocator)
{
// Some malloc() variants return NULL if called with size == 0.
if (size == 0)
@@ -53,29 +53,8 @@ lzma_alloc(size_t size, const lzma_allocator *allocator)
}
extern void * lzma_attribute((__malloc__)) lzma_attr_alloc_size(1)
lzma_alloc_zero(size_t size, const lzma_allocator *allocator)
{
// Some calloc() variants return NULL if called with size == 0.
if (size == 0)
size = 1;
void *ptr;
if (allocator != NULL && allocator->alloc != NULL) {
ptr = allocator->alloc(allocator->opaque, 1, size);
if (ptr != NULL)
memzero(ptr, size);
} else {
ptr = calloc(1, size);
}
return ptr;
}
extern void
lzma_free(void *ptr, const lzma_allocator *allocator)
lzma_free(void *ptr, lzma_allocator *allocator)
{
if (allocator != NULL && allocator->free != NULL)
allocator->free(allocator->opaque, ptr);
@@ -109,7 +88,7 @@ lzma_bufcpy(const uint8_t *restrict in, size_t *restrict in_pos,
extern lzma_ret
lzma_next_filter_init(lzma_next_coder *next, const lzma_allocator *allocator,
lzma_next_filter_init(lzma_next_coder *next, lzma_allocator *allocator,
const lzma_filter_info *filters)
{
lzma_next_coder_init(filters[0].init, next, allocator);
@@ -120,7 +99,7 @@ lzma_next_filter_init(lzma_next_coder *next, const lzma_allocator *allocator,
extern lzma_ret
lzma_next_filter_update(lzma_next_coder *next, const lzma_allocator *allocator,
lzma_next_filter_update(lzma_next_coder *next, lzma_allocator *allocator,
const lzma_filter *reversed_filters)
{
// Check that the application isn't trying to change the Filter ID.
@@ -138,7 +117,7 @@ lzma_next_filter_update(lzma_next_coder *next, const lzma_allocator *allocator,
extern void
lzma_next_end(lzma_next_coder *next, const lzma_allocator *allocator)
lzma_next_end(lzma_next_coder *next, lzma_allocator *allocator)
{
if (next->init != (uintptr_t)(NULL)) {
// To avoid tiny end functions that simply call
@@ -177,8 +156,10 @@ lzma_strm_init(lzma_stream *strm)
strm->internal->next = LZMA_NEXT_CODER_INIT;
}
memzero(strm->internal->supported_actions,
sizeof(strm->internal->supported_actions));
strm->internal->supported_actions[LZMA_RUN] = false;
strm->internal->supported_actions[LZMA_SYNC_FLUSH] = false;
strm->internal->supported_actions[LZMA_FULL_FLUSH] = false;
strm->internal->supported_actions[LZMA_FINISH] = false;
strm->internal->sequence = ISEQ_RUN;
strm->internal->allow_buf_error = false;
@@ -197,7 +178,7 @@ lzma_code(lzma_stream *strm, lzma_action action)
|| (strm->next_out == NULL && strm->avail_out != 0)
|| strm->internal == NULL
|| strm->internal->next.code == NULL
|| (unsigned int)(action) > LZMA_ACTION_MAX
|| (unsigned int)(action) > LZMA_FINISH
|| !strm->internal->supported_actions[action])
return LZMA_PROG_ERROR;
@@ -232,10 +213,6 @@ lzma_code(lzma_stream *strm, lzma_action action)
case LZMA_FINISH:
strm->internal->sequence = ISEQ_FINISH;
break;
case LZMA_FULL_BARRIER:
strm->internal->sequence = ISEQ_FULL_BARRIER;
break;
}
break;
@@ -263,13 +240,6 @@ lzma_code(lzma_stream *strm, lzma_action action)
break;
case ISEQ_FULL_BARRIER:
if (action != LZMA_FULL_BARRIER
|| strm->internal->avail_in != strm->avail_in)
return LZMA_PROG_ERROR;
break;
case ISEQ_END:
return LZMA_STREAM_END;
@@ -295,9 +265,7 @@ lzma_code(lzma_stream *strm, lzma_action action)
strm->internal->avail_in = strm->avail_in;
// Cast is needed to silence a warning about LZMA_TIMED_OUT, which
// isn't part of lzma_ret enumeration.
switch ((unsigned int)(ret)) {
switch (ret) {
case LZMA_OK:
// Don't return LZMA_BUF_ERROR when it happens the first time.
// This is to avoid returning LZMA_BUF_ERROR when avail_out
@@ -313,16 +281,9 @@ lzma_code(lzma_stream *strm, lzma_action action)
}
break;
case LZMA_TIMED_OUT:
strm->internal->allow_buf_error = false;
ret = LZMA_OK;
break;
case LZMA_STREAM_END:
if (strm->internal->sequence == ISEQ_SYNC_FLUSH
|| strm->internal->sequence == ISEQ_FULL_FLUSH
|| strm->internal->sequence
== ISEQ_FULL_BARRIER)
|| strm->internal->sequence == ISEQ_FULL_FLUSH)
strm->internal->sequence = ISEQ_RUN;
else
strm->internal->sequence = ISEQ_END;
@@ -362,22 +323,6 @@ lzma_end(lzma_stream *strm)
}
extern LZMA_API(void)
lzma_get_progress(lzma_stream *strm,
uint64_t *progress_in, uint64_t *progress_out)
{
if (strm->internal->next.get_progress != NULL) {
strm->internal->next.get_progress(strm->internal->next.coder,
progress_in, progress_out);
} else {
*progress_in = strm->total_in;
*progress_out = strm->total_out;
}
return;
}
extern LZMA_API(lzma_check)
lzma_get_check(const lzma_stream *strm)
{
@@ -435,10 +380,8 @@ lzma_memlimit_set(lzma_stream *strm, uint64_t new_memlimit)
|| strm->internal->next.memconfig == NULL)
return LZMA_PROG_ERROR;
// Zero is a special value that cannot be used as an actual limit.
// If 0 was specified, use 1 instead.
if (new_memlimit == 0)
new_memlimit = 1;
if (new_memlimit != 0 && new_memlimit < LZMA_MEMUSAGE_BASE)
return LZMA_MEMLIMIT_ERROR;
return strm->internal->next.memconfig(strm->internal->next.coder,
&memusage, &old_memlimit, new_memlimit);

62
src/liblzma/common/common.h
View File

@@ -49,13 +49,6 @@
#define LZMA_BUFFER_SIZE 4096
/// Maximum number of worker threads within one multithreaded component.
/// The limit exists solely to make it simpler to prevent integer overflows
/// when allocating structures etc. This should be big enough for now...
/// the code won't scale anywhere close to this number anyway.
#define LZMA_THREADS_MAX 16384
/// Starting value for memory usage estimates. Instead of calculating size
/// of _every_ structure and taking into account malloc() overhead etc., we
/// add a base size to all memory usage estimates. It's not very accurate
@@ -73,20 +66,12 @@
( LZMA_TELL_NO_CHECK \
| LZMA_TELL_UNSUPPORTED_CHECK \
| LZMA_TELL_ANY_CHECK \
| LZMA_IGNORE_CHECK \
| LZMA_CONCATENATED )
/// Largest valid lzma_action value as unsigned integer.
#define LZMA_ACTION_MAX ((unsigned int)(LZMA_FULL_BARRIER))
/// Special return value (lzma_ret) to indicate that a timeout was reached
/// and lzma_code() must not return LZMA_BUF_ERROR. This is converted to
/// LZMA_OK in lzma_code(). This is not in the lzma_ret enumeration because
/// there's no need to have it in the public API.
#define LZMA_TIMED_OUT 32
/// Type of encoder/decoder specific data; the actual structure is defined
/// differently in different coders.
typedef struct lzma_coder_s lzma_coder;
typedef struct lzma_next_coder_s lzma_next_coder;
@@ -95,7 +80,7 @@ typedef struct lzma_filter_info_s lzma_filter_info;
/// Type of a function used to initialize a filter encoder or decoder
typedef lzma_ret (*lzma_init_function)(
lzma_next_coder *next, const lzma_allocator *allocator,
lzma_next_coder *next, lzma_allocator *allocator,
const lzma_filter_info *filters);
/// Type of a function to do some kind of coding work (filters, Stream,
@@ -103,7 +88,7 @@ typedef lzma_ret (*lzma_init_function)(
/// input and output buffers, but for simplicity they still use this same
/// function prototype.
typedef lzma_ret (*lzma_code_function)(
void *coder, const lzma_allocator *allocator,
lzma_coder *coder, lzma_allocator *allocator,
const uint8_t *restrict in, size_t *restrict in_pos,
size_t in_size, uint8_t *restrict out,
size_t *restrict out_pos, size_t out_size,
@@ -111,7 +96,7 @@ typedef lzma_ret (*lzma_code_function)(
/// Type of a function to free the memory allocated for the coder
typedef void (*lzma_end_function)(
void *coder, const lzma_allocator *allocator);
lzma_coder *coder, lzma_allocator *allocator);
/// Raw coder validates and converts an array of lzma_filter structures to
@@ -134,7 +119,7 @@ struct lzma_filter_info_s {
/// Hold data and function pointers of the next filter in the chain.
struct lzma_next_coder_s {
/// Pointer to coder-specific data
void *coder;
lzma_coder *coder;
/// Filter ID. This is LZMA_VLI_UNKNOWN when this structure doesn't
/// point to a filter coder.
@@ -154,23 +139,18 @@ struct lzma_next_coder_s {
/// lzma_next_coder.coder.
lzma_end_function end;
/// Pointer to a function to get progress information. If this is NULL,
/// lzma_stream.total_in and .total_out are used instead.
void (*get_progress)(void *coder,
uint64_t *progress_in, uint64_t *progress_out);
/// Pointer to function to return the type of the integrity check.
/// Most coders won't support this.
lzma_check (*get_check)(const void *coder);
lzma_check (*get_check)(const lzma_coder *coder);
/// Pointer to function to get and/or change the memory usage limit.
/// If new_memlimit == 0, the limit is not changed.
lzma_ret (*memconfig)(void *coder, uint64_t *memusage,
lzma_ret (*memconfig)(lzma_coder *coder, uint64_t *memusage,
uint64_t *old_memlimit, uint64_t new_memlimit);
/// Update the filter-specific options or the whole filter chain
/// in the encoder.
lzma_ret (*update)(void *coder, const lzma_allocator *allocator,
lzma_ret (*update)(lzma_coder *coder, lzma_allocator *allocator,
const lzma_filter *filters,
const lzma_filter *reversed_filters);
};
@@ -184,7 +164,6 @@ struct lzma_next_coder_s {
.id = LZMA_VLI_UNKNOWN, \
.code = NULL, \
.end = NULL, \
.get_progress = NULL, \
.get_check = NULL, \
.memconfig = NULL, \
.update = NULL, \
@@ -206,7 +185,6 @@ struct lzma_internal_s {
ISEQ_SYNC_FLUSH,
ISEQ_FULL_FLUSH,
ISEQ_FINISH,
ISEQ_FULL_BARRIER,
ISEQ_END,
ISEQ_ERROR,
} sequence;
@@ -217,7 +195,7 @@ struct lzma_internal_s {
size_t avail_in;
/// Indicates which lzma_action values are allowed by next.code.
bool supported_actions[LZMA_ACTION_MAX + 1];
bool supported_actions[4];
/// If true, lzma_code will return LZMA_BUF_ERROR if no progress was
/// made (no input consumed and no output produced by next.code).
@@ -226,17 +204,11 @@ struct lzma_internal_s {
/// Allocates memory
extern void *lzma_alloc(size_t size, const lzma_allocator *allocator)
extern void *lzma_alloc(size_t size, lzma_allocator *allocator)
lzma_attribute((__malloc__)) lzma_attr_alloc_size(1);
/// Allocates memory and zeroes it (like calloc()). This can be faster
/// than lzma_alloc() + memzero() while being backward compatible with
/// custom allocators.
extern void * lzma_attribute((__malloc__)) lzma_attr_alloc_size(1)
lzma_alloc_zero(size_t size, const lzma_allocator *allocator);
/// Frees memory
extern void lzma_free(void *ptr, const lzma_allocator *allocator);
extern void lzma_free(void *ptr, lzma_allocator *allocator);
/// Allocates strm->internal if it is NULL, and initializes *strm and
@@ -248,19 +220,17 @@ extern lzma_ret lzma_strm_init(lzma_stream *strm);
/// than the filter being initialized now. This way the actual filter
/// initialization functions don't need to use lzma_next_coder_init macro.
extern lzma_ret lzma_next_filter_init(lzma_next_coder *next,
const lzma_allocator *allocator,
const lzma_filter_info *filters);
lzma_allocator *allocator, const lzma_filter_info *filters);
/// Update the next filter in the chain, if any. This checks that
/// the application is not trying to change the Filter IDs.
extern lzma_ret lzma_next_filter_update(
lzma_next_coder *next, const lzma_allocator *allocator,
lzma_next_coder *next, lzma_allocator *allocator,
const lzma_filter *reversed_filters);
/// Frees the memory allocated for next->coder either using next->end or,
/// if next->end is NULL, using lzma_free.
extern void lzma_next_end(lzma_next_coder *next,
const lzma_allocator *allocator);
extern void lzma_next_end(lzma_next_coder *next, lzma_allocator *allocator);
/// Copy as much data as possible from in[] to out[] and update *in_pos

4
src/liblzma/common/easy_buffer_encoder.c
View File

@@ -15,8 +15,8 @@
extern LZMA_API(lzma_ret)
lzma_easy_buffer_encode(uint32_t preset, lzma_check check,
const lzma_allocator *allocator, const uint8_t *in,
size_t in_size, uint8_t *out, size_t *out_pos, size_t out_size)
lzma_allocator *allocator, const uint8_t *in, size_t in_size,
uint8_t *out, size_t *out_pos, size_t out_size)
{
lzma_options_easy opt_easy;
if (lzma_easy_preset(&opt_easy, preset))

1
src/liblzma/common/easy_encoder.c
View File

@@ -11,6 +11,7 @@
///////////////////////////////////////////////////////////////////////////////
#include "easy_preset.h"
#include "stream_encoder.h"
extern LZMA_API(lzma_ret)

3
src/liblzma/common/filter_buffer_decoder.c
View File

@@ -14,8 +14,7 @@
extern LZMA_API(lzma_ret)
lzma_raw_buffer_decode(
const lzma_filter *filters, const lzma_allocator *allocator,
lzma_raw_buffer_decode(const lzma_filter *filters, lzma_allocator *allocator,
const uint8_t *in, size_t *in_pos, size_t in_size,
uint8_t *out, size_t *out_pos, size_t out_size)
{

7
src/liblzma/common/filter_buffer_encoder.c
View File

@@ -14,10 +14,9 @@
extern LZMA_API(lzma_ret)
lzma_raw_buffer_encode(
const lzma_filter *filters, const lzma_allocator *allocator,
const uint8_t *in, size_t in_size,
uint8_t *out, size_t *out_pos, size_t out_size)
lzma_raw_buffer_encode(const lzma_filter *filters, lzma_allocator *allocator,
const uint8_t *in, size_t in_size, uint8_t *out,
size_t *out_pos, size_t out_size)
{
// Validate what isn't validated later in filter_common.c.
if ((in == NULL && in_size != 0) || out == NULL

4
src/liblzma/common/filter_common.c
View File

@@ -123,7 +123,7 @@ static const struct {
extern LZMA_API(lzma_ret)
lzma_filters_copy(const lzma_filter *src, lzma_filter *dest,
const lzma_allocator *allocator)
lzma_allocator *allocator)
{
if (src == NULL || dest == NULL)
return LZMA_PROG_ERROR;
@@ -239,7 +239,7 @@ validate_chain(const lzma_filter *filters, size_t *count)
extern lzma_ret
lzma_raw_coder_init(lzma_next_coder *next, const lzma_allocator *allocator,
lzma_raw_coder_init(lzma_next_coder *next, lzma_allocator *allocator,
const lzma_filter *options,
lzma_filter_find coder_find, bool is_encoder)
{

2
src/liblzma/common/filter_common.h
View File

@@ -36,7 +36,7 @@ typedef const lzma_filter_coder *(*lzma_filter_find)(lzma_vli id);
extern lzma_ret lzma_raw_coder_init(
lzma_next_coder *next, const lzma_allocator *allocator,
lzma_next_coder *next, lzma_allocator *allocator,
const lzma_filter *filters,
lzma_filter_find coder_find, bool is_encoder);

7
src/liblzma/common/filter_decoder.c
View File

@@ -35,8 +35,7 @@ typedef struct {
/// \return - LZMA_OK: Properties decoded successfully.
/// - LZMA_OPTIONS_ERROR: Unsupported properties
/// - LZMA_MEM_ERROR: Memory allocation failed.
lzma_ret (*props_decode)(
void **options, const lzma_allocator *allocator,
lzma_ret (*props_decode)(void **options, lzma_allocator *allocator,
const uint8_t *props, size_t props_size);
} lzma_filter_decoder;
@@ -137,7 +136,7 @@ lzma_filter_decoder_is_supported(lzma_vli id)
extern lzma_ret
lzma_raw_decoder_init(lzma_next_coder *next, const lzma_allocator *allocator,
lzma_raw_decoder_init(lzma_next_coder *next, lzma_allocator *allocator,
const lzma_filter *options)
{
return lzma_raw_coder_init(next, allocator,
@@ -166,7 +165,7 @@ lzma_raw_decoder_memusage(const lzma_filter *filters)
extern LZMA_API(lzma_ret)
lzma_properties_decode(lzma_filter *filter, const lzma_allocator *allocator,
lzma_properties_decode(lzma_filter *filter, lzma_allocator *allocator,
const uint8_t *props, size_t props_size)
{
// Make it always NULL so that the caller can always safely free() it.

2
src/liblzma/common/filter_decoder.h
View File

@@ -17,7 +17,7 @@
extern lzma_ret lzma_raw_decoder_init(
lzma_next_coder *next, const lzma_allocator *allocator,
lzma_next_coder *next, lzma_allocator *allocator,
const lzma_filter *options);
#endif

48
src/liblzma/common/filter_encoder.c
View File

@@ -30,11 +30,11 @@ typedef struct {
/// invalid, UINT64_MAX is returned.
uint64_t (*memusage)(const void *options);
/// Calculates the recommended Uncompressed Size for .xz Blocks to
/// which the input data can be split to make multithreaded
/// encoding possible. If this is NULL, it is assumed that
/// the encoder is fast enough with single thread.
uint64_t (*block_size)(const void *options);
/// Calculates the minimum sane size for Blocks (or other types of
/// chunks) to which the input data can be split to make
/// multithreaded encoding possible. If this is NULL, it is assumed
/// that the encoder is fast enough with single thread.
lzma_vli (*chunk_size)(const void *options);
/// Tells the size of the Filter Properties field. If options are
/// invalid, UINT32_MAX is returned. If this is NULL, props_size_fixed
@@ -59,7 +59,7 @@ static const lzma_filter_encoder encoders[] = {
.id = LZMA_FILTER_LZMA1,
.init = &lzma_lzma_encoder_init,
.memusage = &lzma_lzma_encoder_memusage,
.block_size = NULL, // FIXME
.chunk_size = NULL, // FIXME
.props_size_get = NULL,
.props_size_fixed = 5,
.props_encode = &lzma_lzma_props_encode,
@@ -70,7 +70,7 @@ static const lzma_filter_encoder encoders[] = {
.id = LZMA_FILTER_LZMA2,
.init = &lzma_lzma2_encoder_init,
.memusage = &lzma_lzma2_encoder_memusage,
.block_size = &lzma_lzma2_block_size, // FIXME
.chunk_size = NULL, // FIXME
.props_size_get = NULL,
.props_size_fixed = 1,
.props_encode = &lzma_lzma2_props_encode,
@@ -81,7 +81,7 @@ static const lzma_filter_encoder encoders[] = {
.id = LZMA_FILTER_X86,
.init = &lzma_simple_x86_encoder_init,
.memusage = NULL,
.block_size = NULL,
.chunk_size = NULL,
.props_size_get = &lzma_simple_props_size,
.props_encode = &lzma_simple_props_encode,
},
@@ -91,7 +91,7 @@ static const lzma_filter_encoder encoders[] = {
.id = LZMA_FILTER_POWERPC,
.init = &lzma_simple_powerpc_encoder_init,
.memusage = NULL,
.block_size = NULL,
.chunk_size = NULL,
.props_size_get = &lzma_simple_props_size,
.props_encode = &lzma_simple_props_encode,
},
@@ -101,7 +101,7 @@ static const lzma_filter_encoder encoders[] = {
.id = LZMA_FILTER_IA64,
.init = &lzma_simple_ia64_encoder_init,
.memusage = NULL,
.block_size = NULL,
.chunk_size = NULL,
.props_size_get = &lzma_simple_props_size,
.props_encode = &lzma_simple_props_encode,
},
@@ -111,7 +111,7 @@ static const lzma_filter_encoder encoders[] = {
.id = LZMA_FILTER_ARM,
.init = &lzma_simple_arm_encoder_init,
.memusage = NULL,
.block_size = NULL,
.chunk_size = NULL,
.props_size_get = &lzma_simple_props_size,
.props_encode = &lzma_simple_props_encode,
},
@@ -121,7 +121,7 @@ static const lzma_filter_encoder encoders[] = {
.id = LZMA_FILTER_ARMTHUMB,
.init = &lzma_simple_armthumb_encoder_init,
.memusage = NULL,
.block_size = NULL,
.chunk_size = NULL,
.props_size_get = &lzma_simple_props_size,
.props_encode = &lzma_simple_props_encode,
},
@@ -131,7 +131,7 @@ static const lzma_filter_encoder encoders[] = {
.id = LZMA_FILTER_SPARC,
.init = &lzma_simple_sparc_encoder_init,
.memusage = NULL,
.block_size = NULL,
.chunk_size = NULL,
.props_size_get = &lzma_simple_props_size,
.props_encode = &lzma_simple_props_encode,
},
@@ -141,7 +141,7 @@ static const lzma_filter_encoder encoders[] = {
.id = LZMA_FILTER_DELTA,
.init = &lzma_delta_encoder_init,
.memusage = &lzma_delta_coder_memusage,
.block_size = NULL,
.chunk_size = NULL,
.props_size_get = NULL,
.props_size_fixed = 1,
.props_encode = &lzma_delta_props_encode,
@@ -196,7 +196,7 @@ lzma_filters_update(lzma_stream *strm, const lzma_filter *filters)
extern lzma_ret
lzma_raw_encoder_init(lzma_next_coder *next, const lzma_allocator *allocator,
lzma_raw_encoder_init(lzma_next_coder *next, lzma_allocator *allocator,
const lzma_filter *options)
{
return lzma_raw_coder_init(next, allocator,
@@ -226,19 +226,20 @@ lzma_raw_encoder_memusage(const lzma_filter *filters)
}
extern uint64_t
lzma_mt_block_size(const lzma_filter *filters)
/*
extern LZMA_API(lzma_vli)
lzma_chunk_size(const lzma_filter *filters)
{
uint64_t max = 0;
lzma_vli max = 0;
for (size_t i = 0; filters[i].id != LZMA_VLI_UNKNOWN; ++i) {
const lzma_filter_encoder *const fe
= encoder_find(filters[i].id);
if (fe->block_size != NULL) {
const uint64_t size
= fe->block_size(filters[i].options);
if (size == 0)
return 0;
if (fe->chunk_size != NULL) {
const lzma_vli size
= fe->chunk_size(filters[i].options);
if (size == LZMA_VLI_UNKNOWN)
return LZMA_VLI_UNKNOWN;
if (size > max)
max = size;
@@ -247,6 +248,7 @@ lzma_mt_block_size(const lzma_filter *filters)
return max;
}
*/
extern LZMA_API(lzma_ret)

6
src/liblzma/common/filter_encoder.h
View File

@@ -16,12 +16,12 @@
#include "common.h"
// FIXME: Might become a part of the public API.
extern uint64_t lzma_mt_block_size(const lzma_filter *filters);
// FIXME: Might become a part of the public API once finished.
// extern lzma_vli lzma_chunk_size(const lzma_filter *filters);
extern lzma_ret lzma_raw_encoder_init(
lzma_next_coder *next, const lzma_allocator *allocator,
lzma_next_coder *next, lzma_allocator *allocator,
const lzma_filter *filters);
#endif

2
src/liblzma/common/filter_flags_decoder.c
View File

@@ -15,7 +15,7 @@
extern LZMA_API(lzma_ret)
lzma_filter_flags_decode(
lzma_filter *filter, const lzma_allocator *allocator,
lzma_filter *filter, lzma_allocator *allocator,
const uint8_t *in, size_t *in_pos, size_t in_size)
{
// Set the pointer to NULL so the caller can always safely free it.

69
src/liblzma/common/index.c
View File

@@ -191,8 +191,8 @@ index_tree_init(index_tree *tree)
/// Helper for index_tree_end()
static void
index_tree_node_end(index_tree_node *node, const lzma_allocator *allocator,
void (*free_func)(void *node, const lzma_allocator *allocator))
index_tree_node_end(index_tree_node *node, lzma_allocator *allocator,
void (*free_func)(void *node, lzma_allocator *allocator))
{
// The tree won't ever be very huge, so recursion should be fine.
// 20 levels in the tree is likely quite a lot already in practice.
@@ -202,21 +202,22 @@ index_tree_node_end(index_tree_node *node, const lzma_allocator *allocator,
if (node->right != NULL)
index_tree_node_end(node->right, allocator, free_func);
free_func(node, allocator);
if (free_func != NULL)
free_func(node, allocator);
lzma_free(node, allocator);
return;
}
/// Free the memory allocated for a tree. Each node is freed using the
/// given free_func which is either &lzma_free or &index_stream_end.
/// The latter is used to free the Record groups from each index_stream
/// before freeing the index_stream itself.
/// Free the meory allocated for a tree. If free_func is not NULL,
/// it is called on each node before freeing the node. This is used
/// to free the Record groups from each index_stream before freeing
/// the index_stream itself.
static void
index_tree_end(index_tree *tree, const lzma_allocator *allocator,
void (*free_func)(void *node, const lzma_allocator *allocator))
index_tree_end(index_tree *tree, lzma_allocator *allocator,
void (*free_func)(void *node, lzma_allocator *allocator))
{
assert(free_func != NULL);
if (tree->root != NULL)
index_tree_node_end(tree->root, allocator, free_func);
@@ -338,8 +339,8 @@ index_tree_locate(const index_tree *tree, lzma_vli target)
/// Allocate and initialize a new Stream using the given base offsets.
static index_stream *
index_stream_init(lzma_vli compressed_base, lzma_vli uncompressed_base,
uint32_t stream_number, lzma_vli block_number_base,
const lzma_allocator *allocator)
lzma_vli stream_number, lzma_vli block_number_base,
lzma_allocator *allocator)
{
index_stream *s = lzma_alloc(sizeof(index_stream), allocator);
if (s == NULL)
@@ -367,17 +368,16 @@ index_stream_init(lzma_vli compressed_base, lzma_vli uncompressed_base,
/// Free the memory allocated for a Stream and its Record groups.
static void
index_stream_end(void *node, const lzma_allocator *allocator)
index_stream_end(void *node, lzma_allocator *allocator)
{
index_stream *s = node;
index_tree_end(&s->groups, allocator, &lzma_free);
lzma_free(s, allocator);
index_tree_end(&s->groups, allocator, NULL);
return;
}
static lzma_index *
index_init_plain(const lzma_allocator *allocator)
index_init_plain(lzma_allocator *allocator)
{
lzma_index *i = lzma_alloc(sizeof(lzma_index), allocator);
if (i != NULL) {
@@ -395,16 +395,13 @@ index_init_plain(const lzma_allocator *allocator)
extern LZMA_API(lzma_index *)
lzma_index_init(const lzma_allocator *allocator)
lzma_index_init(lzma_allocator *allocator)
{
lzma_index *i = index_init_plain(allocator);
if (i == NULL)
return NULL;
index_stream *s = index_stream_init(0, 0, 1, 0, allocator);
if (s == NULL) {
if (i == NULL || s == NULL) {
index_stream_end(s, allocator);
lzma_free(i, allocator);
return NULL;
}
index_tree_append(&i->streams, &s->node);
@@ -414,7 +411,7 @@ lzma_index_init(const lzma_allocator *allocator)
extern LZMA_API(void)
lzma_index_end(lzma_index *i, const lzma_allocator *allocator)
lzma_index_end(lzma_index *i, lzma_allocator *allocator)
{
// NOTE: If you modify this function, check also the bottom
// of lzma_index_cat().
@@ -637,7 +634,7 @@ lzma_index_stream_padding(lzma_index *i, lzma_vli stream_padding)
extern LZMA_API(lzma_ret)
lzma_index_append(lzma_index *i, const lzma_allocator *allocator,
lzma_index_append(lzma_index *i, lzma_allocator *allocator,
lzma_vli unpadded_size, lzma_vli uncompressed_size)
{
// Validate.
@@ -765,7 +762,7 @@ index_cat_helper(const index_cat_info *info, index_stream *this)
extern LZMA_API(lzma_ret)
lzma_index_cat(lzma_index *restrict dest, lzma_index *restrict src,
const lzma_allocator *allocator)
lzma_allocator *allocator)
{
const lzma_vli dest_file_size = lzma_index_file_size(dest);
@@ -829,9 +826,6 @@ lzma_index_cat(lzma_index *restrict dest, lzma_index *restrict src,
s->groups.rightmost = &newg->node;
lzma_free(g, allocator);
// NOTE: newg isn't leaked here because
// newg == (void *)&newg->node.
}
}
@@ -862,7 +856,7 @@ lzma_index_cat(lzma_index *restrict dest, lzma_index *restrict src,
/// Duplicate an index_stream.
static index_stream *
index_dup_stream(const index_stream *src, const lzma_allocator *allocator)
index_dup_stream(const index_stream *src, lzma_allocator *allocator)
{
// Catch a somewhat theoretical integer overflow.
if (src->record_count > PREALLOC_MAX)
@@ -872,8 +866,11 @@ index_dup_stream(const index_stream *src, const lzma_allocator *allocator)
index_stream *dest = index_stream_init(src->node.compressed_base,
src->node.uncompressed_base, src->number,
src->block_number_base, allocator);
if (dest == NULL)
return NULL;
// Return immediately if allocation failed or if there are
// no groups to duplicate.
if (dest == NULL || src->groups.leftmost == NULL)
return dest;
// Copy the overall information.
dest->record_count = src->record_count;
@@ -881,10 +878,6 @@ index_dup_stream(const index_stream *src, const lzma_allocator *allocator)
dest->stream_flags = src->stream_flags;
dest->stream_padding = src->stream_padding;
// Return if there are no groups to duplicate.
if (src->groups.leftmost == NULL)
return dest;
// Allocate memory for the Records. We put all the Records into
// a single group. It's simplest and also tends to make
// lzma_index_locate() a little bit faster with very big Indexes.
@@ -923,7 +916,7 @@ index_dup_stream(const index_stream *src, const lzma_allocator *allocator)
extern LZMA_API(lzma_index *)
lzma_index_dup(const lzma_index *src, const lzma_allocator *allocator)
lzma_index_dup(const lzma_index *src, lzma_allocator *allocator)
{
// Allocate the base structure (no initial Stream).
lzma_index *dest = index_init_plain(allocator);
@@ -1012,8 +1005,6 @@ iter_set_info(lzma_index_iter *iter)
iter->internal[ITER_GROUP].p = NULL;
}
// NOTE: lzma_index_iter.stream.number is lzma_vli but we use uint32_t
// internally.
iter->stream.number = stream->number;
iter->stream.block_count = stream->record_count;
iter->stream.compressed_offset = stream->node.compressed_base;

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