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2023-10-22xz: Support basic sandboxing with Linux Landlock (ABI versions 1-3).Lasse Collin1-1/+2
It is enabled only when decompressing one file to stdout, similar to how Capsicum is used. Landlock was added in Linux 5.13.
2023-10-22Simplify detection of Capsicum support.Lasse Collin1-1/+1
This removes support for FreeBSD 10.0 and 10.1 which used <sys/capability.h> instead of <sys/capsicum.h>. Support for FreeBSD 10.1 ended on 2016-12-31. So now FreeBSD >= 10.2 is required to enable Capsicum support. This also removes support for Capsicum on Linux (libcaprights) which seems to have been unmaintained since 2017 and Linux 4.11: https://github.com/google/capsicum-linux
2023-09-22MSVC: xz: Use _fileno() instead of fileno().Kelvin Lee1-0/+4
2023-09-22MSVC: Don't #include <unistd.h>.Kelvin Lee1-1/+4
2023-01-27xz: Use clock_gettime() even if CLOCK_MONOTONIC isn't available.Lasse Collin1-2/+1
mythread.h and thus liblzma already does it.
2023-01-27xz: Add SIGTSTP handler for progress indicator time keeping.Lasse Collin1-0/+12
This way, if xz is stopped the elapsed time and estimated time remaining won't get confused by the amount of time spent in the stopped state. This raises SIGSTOP. It's not clear to me if this is the correct way. POSIX and glibc docs say that SIGTSTP shouldn't stop the process if it is orphaned but this commit doesn't attempt to handle that. Search for SIGTSTP in section 2.4.3: https://pubs.opengroup.org/onlinepubs/9699919799/functions/V2_chap02.html
2022-10-25xz: Add support for OpenBSD's pledge() sandbox.Lasse Collin1-1/+1
2019-05-11spellingAntoine Cœur1-1/+1
2015-11-03xz: Make xz buildable even when encoders or decoders are disabled.Lasse Collin1-1/+4
The patch is quite long but it's mostly about adding new #ifdefs to omit code when encoders or decoders have been disabled. This adds two new #defines to config.h: HAVE_ENCODERS and HAVE_DECODERS.
2015-03-31xz: Add support for sandboxing with Capsicum.Lasse Collin1-0/+4
The sandboxing is used conditionally as described in main.c. This isn't optimal but it was much easier to implement than a full sandboxing solution and it still covers the most common use cases where xz is writing to standard output. This should have practically no effect on performance even with small files as fork() isn't needed. C and locale libraries can open files as needed. This has been fine in the past, but it's a problem with things like Capsicum. io_sandbox_enter() tries to ensure that various locale-related files have been loaded before cap_enter() is called, but it's possible that there are other similar problems which haven't been seen yet. Currently Capsicum is available on FreeBSD 10 and later and there is a port to Linux too. Thanks to Loganaden Velvindron for help.
2014-11-26Remove LZMA_UNSTABLE macro.Lasse Collin1-1/+0
2013-07-04xz: Move some of the timing code into mytime.[hc].Lasse Collin1-0/+1
This switches units from microseconds to milliseconds. New clock_gettime(CLOCK_MONOTONIC) will be used if available. There is still a fallback to gettimeofday().
2011-04-12Put the unstable APIs behind #ifdef LZMA_UNSTABLE.Lasse Collin1-0/+2
This way people hopefully won't complain if these APIs change and break code that used an older API.
2010-09-10xz: Multiple fixes.Lasse Collin1-0/+1
The code assumed that printing numbers with thousand separators and decimal points would always produce only US-ASCII characters. This was used for buffer sizes (with snprintf(), no overflows) and aligning columns of the progress indicator and --list. That assumption was wrong (e.g. LC_ALL=fi_FI.UTF-8 with glibc), so multibyte character support was added in this commit. The old way is used if the operating system doesn't have enough multibyte support (e.g. lacks wcwidth()). The sizes of buffers were increased to accomodate multibyte characters. I don't know how big they should be exactly, but they aren't used for anything critical, so it's not too bad. If they still aren't big enough, I hopefully get a bug report. snprintf() takes care of avoiding buffer overflows. Some static buffers were replaced with buffers allocated on stack. double_to_str() was removed. uint64_to_str() and uint64_to_nicestr() now share the static buffer and test for thousand separator support. Integrity check names "None" and "Unknown-N" (2 <= N <= 15) were marked to be translated. I had forgot these, plus they wouldn't have worked correctly anyway before this commit, because printing tables with multibyte strings didn't work. Thanks to Marek Černocký for reporting the bug about misaligned table columns in --list output.
2010-06-02Fix a Windows-specific FIXME in signal handling code.Lasse Collin1-0/+5
2010-01-24Add initial version of xz --list.Lasse Collin1-0/+1
This is a bit rough but should be useful for basic things. Ideas (with detailed examples) about the output format are welcome. The output of --robot --list is not necessarily stable yet, although I don't currently have any plans about changing it. The man page hasn't been updated yet.
2009-09-19Various changes.Lasse Collin1-8/+3
Separate a few reusable components from XZ Utils specific code. The reusable code is now in "tuklib" modules. A few more could be separated still, e.g. bswap.h. Fix some bugs in lzmainfo. Fix physmem and cpucores code on OS/2. Thanks to Elbert Pol for help. Add OpenVMS support into physmem. Add a few #ifdefs to ease building XZ Utils on OpenVMS. Thanks to Jouk Jansen for the original patch.
2009-06-26Rename process.[hc] to coder.[hc] and io.[hc] to file_io.[hc]Lasse Collin1-2/+2
to avoid problems on systems with system headers with those names.
2009-04-13Put the interesting parts of XZ Utils into the public domain.Lasse Collin1-10/+3
Some minor documentation cleanups were made at the same time.
2009-02-05Various code cleanups the the xz command line tool.Lasse Collin1-5/+13
It now builds with MinGW.
2009-01-31Add LZMA_API to liblzma API headers. It's useful at leastLasse Collin1-0/+1
on Windows. sysdefs.h no longer #includes lzma.h, so lzma.h has to be #included separately where needed.
2009-01-07Use pthread_sigmask() instead of sigprocmask() when pthreadsLasse Collin1-0/+1
are enabled.
2008-11-19Renamed lzma to xz and lzmadec to xzdec. We create symlinksLasse Collin1-0/+52
lzma, unlzma, and lzcat in "make install" for backwards compatibility with LZMA Utils 4.32.x; I'm not sure if this should be the default though.
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