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2309 Commits

Author SHA1 Message Date
Lasse Collin cae9a5e0bf xz: Use stricter pledge(2) and Landlock sandbox. 
This makes these sandboxing methods stricter when no files are
created or deleted. That is, it's a middle ground between the
initial sandbox and the strictest single-file-to-stdout sandbox:
this allows opening files for reading but output has to go to stdout.
 2024-02-17 23:07:35 +02:00
Lasse Collin 02e3505991 xz: Support Landlock ABI version 4. 
Linux 6.7 added support for ABI version 4 which restricts
TCP connections which xz won't need and thus those can be
forbidden now. Since the ABI version is handled at runtime,
supporting version 4 won't cause any compatibility issues.

Note that new enough kernel headers are required to get
version 4 support enabled at build time.
 2024-02-17 23:07:35 +02:00
Lasse Collin 374868d81d xz: Move sandboxing code to sandbox.c and improve Landlock sandbox. 
Landlock is now always used just like pledge(2) is: first in more
permissive mode and later (under certain common conditions) in
a strict mode that doesn't allow opening more files.

I put pledge(2) first in sandbox.c because it's the simplest API
to use and still somewhat fine-grained for basic applications.
So it's the simplest thing to understand for anyone reading sandbox.c.
 2024-02-17 23:07:35 +02:00
Lasse Collin 7312dfbb02 xz: Tweak comments. 2024-02-17 23:07:35 +02:00
Lasse Collin c701a5909a xz: Fix message_init() description. 
Also explicitly initialize progress_automatic to make it clear
that it can be read before message_init() sets it. Static variable
was initialized to false by default already so this is only for
clarity.
 2024-02-17 23:07:35 +02:00
Lasse Collin 9466306719 Build: Makefile.am: Sort EXTRA_DIST. 
Dirs first, then files in case-sensitive ASCII order.
 2024-02-17 19:42:30 +02:00
Lasse Collin f3440e78c9 Build: Don't install TODO. 2024-02-17 19:42:30 +02:00
Jia Tan a7a3b62e2a Translations: Update the Korean man page translations. 2024-02-18 01:09:11 +08:00
Jia Tan 9b315db2d5 Translations: Update the Korean translation. 2024-02-18 01:08:32 +08:00
Lasse Collin 56246607df Build: Install translated lzmainfo man pages. 
All other translated man pages were being installed but
lzmainfo had been forgotten.
 2024-02-17 16:23:14 +02:00
Lasse Collin f1d6b88aef liblzma: Avoid implementation-defined behavior in the RISC-V filter. 
GCC docs promise that it works and a few other compilers do
too. Clang/LLVM is documented source code only but unsurprisingly
it behaves the same as others on x86-64 at least. But the
certainly-portable way is good enough here so use that.
 2024-02-17 16:01:32 +02:00
Lasse Collin 843ddc5f61 liblzma: Wrap a line exceeding 80 chars. 2024-02-17 15:50:21 +02:00
Sebastian Andrzej Siewior e9053c9072 liblzma/rangecoder: Exclude x32 from the x86-64 optimisation. 
The x32 port has a x86-64 ABI in term of all registers but uses only
32bit pointer like x86-32. The assembly optimisation fails to compile on
x32. Given the state of x32 I suggest to exclude it from the
optimisation rather than trying to fix it.

Signed-off-by: Sebastian Andrzej Siewior <sebastian@breakpoint.cc>
 2024-02-17 15:50:21 +02:00
Jia Tan 3d198fb13b Translations: Update the Spanish translation. 2024-02-17 21:05:07 +08:00
Jia Tan cf278bfe60 Translations: Update the Swedish translation. 2024-02-17 20:43:29 +08:00
Jia Tan b0f1a41be5 Translations: Update the Polish translation. 2024-02-17 20:41:38 +08:00
Jia Tan d74ed48b30 Translations: Update the Ukrainian translation. 2024-02-17 20:41:02 +08:00
Lasse Collin 711e22d5c5 Translations: Use the same sentence in xz.pot-header that the TP uses. 2024-02-16 17:53:34 +02:00
Jia Tan fb5f6aaf18 Fix typos discovered by codespell. 2024-02-16 22:54:59 +08:00
Jia Tan c64723bbb0 Translations: Update the Ukrainian man page translations. 2024-02-16 22:54:59 +08:00
Jia Tan 2895195ed0 Translations: Update the Ukrainian translation. 2024-02-16 22:54:59 +08:00
Lasse Collin 4c20781f4c Translations: Omit the generic copyright line from man page headers. 2024-02-15 22:33:49 +02:00
Jia Tan 4323bc3e0c Update m4/.gitignore. 2024-02-15 22:26:43 +08:00
Lasse Collin 5394a1665b Tests: tuktest.h: Treat Clang separately from GCC. 
Don't assume that Clang defines __GNUC__ as the extensions
are available in clang-cl as well (and possibly in some other
Clang variants?).
 2024-02-14 21:12:58 +02:00
Lasse Collin cce7330b9f Tests: tuktest.h: Add a missing word to a comment. 2024-02-14 21:11:03 +02:00
Lasse Collin 5dd8fc9452 Tests: tuktest.h: Fix the comment about STest. 2024-02-14 21:10:10 +02:00
Jia Tan 6f1790254a Bump version for 5.5.2beta. 2024-02-15 01:53:40 +08:00
Lasse Collin 924fdeedf4 liblzma: Fix validate_map.sh. 
Adding the SPDX license identifier changed the line numbers.
 2024-02-14 19:46:11 +02:00
Lasse Collin 22140a2df6 Build: Start the generated ChangeLog from around 5.4.0 instead of 5.2.0. 2024-02-14 19:38:34 +02:00
Lasse Collin 0b8cefa136 Fixed NEWS for 5.5.2beta. 2024-02-14 19:27:46 +02:00
Lasse Collin a4557bad96 liblzma: Silence warnings in --enable-small build. 2024-02-14 19:21:45 +02:00
Lasse Collin 38edf47323 Build: Install COPYING.0BSD as part of docs. 2024-02-14 19:15:58 +02:00
Lasse Collin b74e10bd83 Docs: List COPYING.0BSD in README. 2024-02-14 19:15:34 +02:00
Lasse Collin dfdb60ffe9 Docs: Include doc/examples/11_file_info.c in tarballs. 
It was added in 2017 in c2e29f06a7
but it never got into any release tarballs because it was
forgotten to be added to Makefile.am.
 2024-02-14 19:11:48 +02:00
Lasse Collin 160b686264 liblzma: Silence a warning. 2024-02-14 19:05:58 +02:00
Lasse Collin eeedd4d092 Add NEWS for 5.5.2beta. 2024-02-14 18:32:27 +02:00
Lasse Collin 8af7db854f xz: Mention lzmainfo if trying to use 'lzma --list'. 
This kind of fixes the problem reported here:
https://bugs.launchpad.net/ubuntu/+source/xz-utils/+bug/1291020
 2024-02-14 18:31:16 +02:00
Lasse Collin 0668907ff7 liblzma: Add comments. 2024-02-14 18:31:16 +02:00
Lasse Collin 109f1913d4 Scripts: Add lz4 support to xzgrep and xzdiff. 2024-02-14 18:31:16 +02:00
Lasse Collin de55485cb2 liblzma: Choose the range decoder variants using a bitmask macro. 2024-02-14 18:31:16 +02:00
Lasse Collin 0709c2b2d7 xz: Fix outdated threading related info on the man page. 2024-02-14 18:31:16 +02:00
Lasse Collin 3182a330c1 liblzma: Range decoder: Add x86-64 inline assembly. 
It's compatible with GCC and Clang.
 2024-02-14 18:31:16 +02:00
Lasse Collin cba2edc991 liblzma: Range decoder: Add branchless C code. 
It's used only for basic bittrees and fixed-size reverse bittree
because those showed a clear benefit on x86-64 with GCC and Clang.
The other methods were more mixed and thus are commented out but
they should be tested on other archs.
 2024-02-14 18:31:16 +02:00
Lasse Collin e290a72d6d liblzma: Clarify a comment. 2024-02-14 18:31:16 +02:00
Lasse Collin 5e04706b91 liblzma: LZMA decoder: Optimize loop comparison. 
But now it needs one more local variable.
 2024-02-14 18:31:16 +02:00
Lasse Collin 88276f9f2c liblzma: Optimize literal_subcoder() macro slightly. 2024-02-14 18:31:16 +02:00
Lasse Collin 5938f6de4d liblzma: LZ decoder: Add unlikely(). 2024-02-14 18:31:16 +02:00
Lasse Collin 9c252e3ed0 liblzma: LZ decoder: Remove a useless unlikely(). 2024-02-14 18:31:16 +02:00
Lasse Collin f3872a5947 liblzma: Optimize LZ decoder slightly. 
Now extra buffer space is reserved so that repeating bytes for
any single match will never need to copy from two places (both
the beginning and the end of the buffer). This simplifies
dict_repeat() and helps a little with speed.

This seems to reduce .lzma decompression time about 2 %, so
with .xz and CRC it could be slightly less. The small things
add up still.
 2024-02-14 18:31:16 +02:00
Lasse Collin eb518446e5 liblzma: LZMA decoder: Get rid of next_state[]. 
It's not completely obvious if this is better in the decoder.
It should be good if compiler can avoid creating a branch
(like using CMOV on x86).

This also makes lzma_encoder.c use the new macros.
 2024-02-14 18:31:16 +02:00