Commit Graph

1165 Commits

Author SHA1 Message Date
Lasse Collin bab0f01ed9 Add two simple example programs.
Hopefully these help a bit when learning the basics
of liblzma API. I plan to write detailed examples about
both basic and advanced features with lots of comments,
but these two examples are good have right now.

The examples were written by Daniel Mealha Cabrita. Thanks.
2010-07-13 19:55:50 +03:00
Lasse Collin c15c42abb3 Add --no-adjust. 2010-06-15 14:06:29 +03:00
Lasse Collin 2130926dd1 Updated THANKS. 2010-06-11 21:51:32 +03:00
Lasse Collin bc612d0e0c Clarify the description of the default memlimit in the man page.
Thanks to Denis Excoffier.
2010-06-11 21:48:32 +03:00
Lasse Collin e1b6935d60 Fix string to uint64_t conversion.
Thanks to Denis Excoffier for the bug report.
2010-06-11 21:43:28 +03:00
Lasse Collin 3e49c8acb0 Put the git commit to the filename in mydist rule. 2010-06-11 10:40:28 +03:00
Lasse Collin d8b41eedce Fix compiling with -Werror. 2010-06-02 23:13:55 +03:00
Lasse Collin b5fbab6123 Silence a bogus Valgrind warning.
When using -O2 with GCC, it liked to swap two comparisons
in one "if" statement. It's otherwise fine except that
the latter part, which is seemingly never executed, got
executed (nothing wrong with that) and then triggered
warning in Valgrind about conditional jump depending on
uninitialized variable. A few people find this annoying
so do things a bit differently to avoid the warning.
2010-06-02 23:09:22 +03:00
Lasse Collin 29a7b250e6 Fix a Windows-specific FIXME in signal handling code. 2010-06-02 21:32:12 +03:00
Lasse Collin e89d987056 Adjust SA_RESTART workaround.
I want to get a bug report if something else than
DJGPP lacks SA_RESTART.
2010-06-02 17:46:58 +03:00
Lasse Collin e243145c84 xz man page updates.
- Concatenating .xz files and padding
- List mode
- Robot mode
- A few examples (but many more are needed)
2010-06-01 16:02:30 +03:00
Lasse Collin ce6dc3c0a8 Major update to xz --list. 2010-06-01 15:51:44 +03:00
Lasse Collin 905e54804a Rename message_filters_get() to message_filters_to_str(). 2010-06-01 14:13:03 +03:00
Lasse Collin 4b346ae8af Fix a comment. 2010-06-01 14:09:12 +03:00
Lasse Collin 07dc34f6da Fix lzma_block_compressed_size(). 2010-05-27 16:17:42 +03:00
Lasse Collin 44d70cb154 Take Cygwin into account in some #if lines.
This change is no-op, but good to have just in case
for the future.
2010-05-27 14:32:51 +03:00
Lasse Collin a334348dc0 Remove references to the Subblock filter in xz and tests.
Thanks to Jonathan Nieder.
2010-05-27 13:42:44 +03:00
Lasse Collin 70e5e2f6a7 Remove unused chunk_size.c.
Thanks to Jonathan Nieder for the reminder.
2010-05-27 13:35:36 +03:00
Jonathan Nieder 01a414eaf4 Use my_min() instead of MIN() in src/xz/list.c
This should have been done in
920a69a8d8.
2010-05-27 13:30:48 +03:00
Lasse Collin 920a69a8d8 Rename MIN() and MAX() to my_min() and my_max().
This should avoid some minor portability issues.
2010-05-26 10:36:46 +03:00
Lasse Collin 019ae27c24 Fix compilation of debug/known_sizes.c. 2010-05-26 10:30:20 +03:00
Lasse Collin 98a4856a6e Remove references to Subblock filter in debug/sync_flush.c. 2010-05-26 10:28:54 +03:00
Lasse Collin 703d2c33c0 Better #error message. 2010-05-26 10:16:57 +03:00
Lasse Collin d8a55c48b3 Remove the Subblock filter code for now.
The spec isn't finished and the code didn't compile anymore.
It won't be included in XZ Utils 5.0.0. It's easy to get it
back once the spec is done.
2010-05-26 09:55:47 +03:00
Lasse Collin b6377fc990 Split message_filters().
message_filters_to_str() converts the filter chain to
a string. message_filters_show() replaces the original
message_filters().

uint32_to_optstr() was also added to show the dictionary
size in nicer format when possible.
2010-05-16 18:42:22 +03:00
Lasse Collin d9986db782 Omit lzma_restrict from the API headers.
It isn't really useful so omitting it makes things
shorter and slightly more readable.
2010-05-14 23:17:20 +03:00
Lasse Collin 0d3489efca Updated INSTALL. 2010-05-10 19:57:24 +03:00
Lasse Collin 3fb3d594a2 Updated THANKS. 2010-05-10 19:54:52 +03:00
Lasse Collin 6548e30465 Updates to tuklib_physmem and tuklib_cpucores.
Don't use #error to generate compile error, because some
compilers actually don't take it as an error. This fixes
tuklib_physmem on IRIX.

Fix incorrect error check for sysconf() return values.

Add AIX, HP-UX, and Tru64 specific code to detect the
amount RAM.

Add HP-UX specific code to detect the number of CPU cores.

Thanks a lot to Peter O'Gorman for initial patches,
testing, and debugging these fixes.
2010-05-10 19:54:15 +03:00
Lasse Collin a290cfee3e Show both elapsed time and estimated remaining time in xz -v.
The extra space for showing both has been taken from the
sizes field. If the sizes grow big, bigger units than MiB
will be used. It makes it slightly difficult to see that
progress is still happening with huge files, but it should
be OK in practice.

Thanks to Trent W. Buck for <http://bugs.debian.org/574583>
and Jonathan Nieder for suggestions how to fix it.
2010-04-12 21:55:56 +03:00
Lasse Collin a1f7a986b8 Add a simple tip to faq.txt about tar and xz.
Thanks to Gilles Espinasse.
2010-03-31 16:47:25 +03:00
Lasse Collin c737eec91d Updated THANKS. 2010-03-22 21:03:03 +02:00
Lasse Collin f4b2b52624 Fix xzgrep to not break if filenames have spaces or quotes.
Thanks to someone who reported the bug on IRC.
2010-03-07 19:52:25 +02:00
Lasse Collin cf38da00a1 Treat all integer multiplier suffixes as base-2.
Originally both base-2 and base-10 were supported, but since
there seems to be little need for base-10 in XZ Utils, treat
everything as base-2 and also be more relaxed about the case
of the first letter of the suffix. Now xz will accept e.g.
KiB, Ki, k, K, kB, and KB, and interpret them all as 1024. The
recommended spelling of the suffixes are still KiB, MiB, and GiB.
2010-03-07 13:59:32 +02:00
Lasse Collin 00fc1211ae Consistently round up the memory usage limit in messages.
It still feels a bit wrong to round 1 byte to 1 MiB but
at least it is now done consistently so that the same
byte value is always rounded the same way to MiB.
2010-03-07 13:50:23 +02:00
Lasse Collin 9886d436ff Change the default of --enable-assume-ram from 32 to 128 MiB.
This is to allow files created with "xz -9" to be decompressed
if the amount of RAM cannot be determined.
2010-03-07 13:34:34 +02:00
Lasse Collin 2672bcc9f8 Increase the default memory usage limit on "low-memory" systems.
Previously the default limit was always 40 % of RAM. The
new limit is a little bit more complex:

  - If 40 % of RAM is at least 80 MiB, 40 % of RAM is used
    as the limit.

  - If 80 % of RAM is over 80 MiB, 80 MiB is used as the limit.

  - Otherwise 80 % of RAM is used as the limit.

This should make it possible to decompress files created with
"xz -9" on more systems. Swapping is generally more expected
on systems with less RAM, so higher default limit on them
shouldn't cause too bad surprises in terms of heavy swapping.
Instead, the higher default limit should reduce the number of
bad surprises when it used to prevent decompression of files
created with "xz -9". The DoS prevention system shouldn't be
a DoS itself.

Note that even with the new default limit, a system with 64 MiB
RAM cannot decompress files created with "xz -9" without user
overriding the limit. This should be OK, because if xz is going
to need more memory than the system has RAM, it will run very
very slowly and thus it's good that user has to override the limit
in that case.
2010-03-07 13:29:28 +02:00
Lasse Collin 5527b7269a Updated THANKS. 2010-03-06 21:36:19 +02:00
Lasse Collin d0d1c51aea Fix missing initialization in lzma_strm_init().
With bad luck, lzma_code() could return LZMA_BUF_ERROR
when it shouldn't.

This has been here since the early days of liblzma.
It got triggered by the modifications made to the xz
tool in commit 18c10c30d2
but only when decompressing .lzma files. Somehow I managed
to miss testing that with Valgrind earlier.

This fixes <http://bugs.gentoo.org/show_bug.cgi?id=305591>.
Thanks to Rafał Mużyło for helping to debug it on IRC.
2010-03-06 21:17:20 +02:00
Lasse Collin eb7d51a3fa Collection of language fixes to comments and docs.
Thanks to Jonathan Nieder.
2010-02-12 13:16:15 +02:00
Lasse Collin 4785f2021a Fix jl -> jb in ASM files. 2010-02-12 12:41:20 +02:00
Lasse Collin 6b50c9429b Use __APPLE__ instead of __MACH__ in ASM files.
This allows the files to work on HURD.

Thanks to Jonathan Nieder.
2010-02-12 12:31:22 +02:00
Lasse Collin 6503fde658 Subtle change to liblzma Block handling API.
lzma_block.version has to be initialized even for
lzma_block_header_decode(). This way a future version
of liblzma won't allocate memory in a way that an old
application doesn't know how to free it.

The subtlety of this change is that all current apps
using lzma_block_header_decode() will keep working for
now, because the only possible version value is zero,
and lzma_block_header_decode() unconditionally sets the
version to zero even now. Unless fixed, these apps will
break in the future if a new version of the Block options
is ever needed.
2010-02-07 19:48:06 +02:00
Lasse Collin dd7c3841ff Fix wrong assertion.
This was added in 455e68c030.
2010-02-02 11:50:11 +02:00
Lasse Collin 9d67588c15 Updated TODO. 2010-02-01 22:48:42 +02:00
Lasse Collin fef6333f52 Fix typos in comments. 2010-02-01 22:47:54 +02:00
Lasse Collin 455e68c030 Fix signal handling for --list. 2010-02-01 22:46:56 +02:00
Lasse Collin 82220a1490 Fix compression of symlinks with --force.
xz --force accepted symlinks, but didn't remove
them after successful compression. Instead, an error
message was displayed.
2010-02-01 11:44:45 +02:00
Lasse Collin d4da177d5b Fix a comment. 2010-02-01 10:20:57 +02:00
Lasse Collin f9dd797a42 Updated THANKS. 2010-01-31 23:43:54 +02:00