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67 commits

Author SHA1 Message Date
Lasse Collin
653e457e37 Fix a dumb bug in .lzma decoder which was introduced in
the previous commit. (Probably the previous commit has
other bugs too, it wasn't tested.)
2008-12-15 23:26:43 +02:00
Lasse Collin
671a5adf1e Bunch of liblzma API cleanups and fixes. 2008-12-15 19:39:13 +02:00
Lasse Collin
ccd57afa09 Validate the filter chain before checking filter-specific
memory usage.
2008-12-01 22:59:28 +02:00
Lasse Collin
c58f469be5 Added the changes for Delta filter that should have been
part of 656ec87882.
2008-12-01 22:55:18 +02:00
Lasse Collin
a8368b75cd Remove the nowadays unneeded memory limitting malloc() wrapper. 2008-11-25 02:37:47 +02:00
Lasse Collin
69472ee5f0 VLI encoder and decoder cleanups. Made encoder return
LZMA_PROG_ERROR in single-call mode if there's no output
space.
2008-11-23 15:09:03 +02:00
Lasse Collin
e114502b2b Oh well, big messy commit again. Some highlights:
- Updated to the latest, probably final file format version.
  - Command line tool reworked to not use threads anymore.
    Threading will probably go into liblzma anyway.
  - Memory usage limit is now about 30 % for uncompression
    and about 90 % for compression.
  - Progress indicator with --verbose
  - Simplified --help and full --long-help
  - Upgraded to the last LGPLv2.1+ getopt_long from gnulib.
  - Some bug fixes
2008-11-19 20:46:52 +02:00
Lasse Collin
8e60c889a2 Fixed Stream decoder to actually use the first_stream variable. 2008-09-30 13:57:44 +03:00
Lasse Collin
a6639022fd Fixed uninitialized variable in Stream decoder. 2008-09-30 13:34:07 +03:00
Lasse Collin
ea560b0ea8 Fix conflicting Subblock helper filter's ID. 2008-09-27 23:49:24 +03:00
Lasse Collin
ad97483b6e Changed magic bytes to match the updated spec. Filename
suffix wasn't changed yet.
2008-09-27 23:37:13 +03:00
Lasse Collin
1dcecfb09b Some API changes, bug fixes, cleanups etc. 2008-09-27 19:09:21 +03:00
Lasse Collin
13a74b78e3 Renamed constants:
- LZMA_VLI_VALUE_MAX -> LZMA_VLI_MAX
  - LZMA_VLI_VALUE_UNKNOWN -> LZMA_VLI_UNKNOWN
  - LZMA_HEADER_ERRRO -> LZMA_OPTIONS_ERROR
2008-09-13 12:10:43 +03:00
Lasse Collin
320601b2c7 Improved the Stream Flags handling API. 2008-09-12 22:41:40 +03:00
Lasse Collin
16e8b98f26 Remove a check from Block encoder that should have already
been removed in 2ba01bfa75.
2008-09-11 23:09:24 +03:00
Lasse Collin
5a710c3805 Remove bogus #includes. 2008-09-11 20:02:38 +03:00
Lasse Collin
cb072b7c84 Check for LZMA_FILTER_RESERVED_START in filter_flags_encoder.c.
Use LZMA_PROG_ERROR instead of LZMA_HEADER_ERROR if the Filter ID
is in the reserved range. This allows Block Header encoder to
detect unallowed Filter IDs, which is good for Stream encoder.
2008-09-10 17:02:00 +03:00
Lasse Collin
123ab0acec Filter handling cleanups 2008-09-10 16:44:32 +03:00
Lasse Collin
9cfcd0c4f2 Comments 2008-09-10 00:33:00 +03:00
Lasse Collin
2ba01bfa75 Cleaned up Block encoder and moved the no longer shared
code from block_private.h to block_decoder.c. Now the Block
encoder doesn't need compressed_size and uncompressed_size
from lzma_block structure to be initialized.
2008-09-10 00:27:02 +03:00
Lasse Collin
0a31ed9d5e Some API cleanups 2008-09-06 15:14:30 +03:00
Lasse Collin
2496aee8a7 Don't allow LZMA_SYNC_FLUSH with decoders anymore. There's
simply nothing that would use it. Allow LZMA_FINISH to the
decoders, which will usually ignore it (auto decoder and
Stream decoder being exceptions).
2008-09-04 10:39:15 +03:00
Lasse Collin
bab0590504 Auto decoder cleanup 2008-09-02 19:31:42 +03:00
Lasse Collin
689602336d Updated auto decoder to handle LZMA_CONCATENATED when decoding
LZMA_Alone files. Decoding of concatenated LZMA_Alone files is
intentionally not supported, so it is better to put this in
auto decoder than LZMA_Alone decoder.
2008-09-02 19:12:12 +03:00
Lasse Collin
80c4158f19 Stream decoder cleanups 2008-09-02 14:56:52 +03:00
Lasse Collin
3b34851de1 Sort of garbage collection commit. :-| Many things are still
broken. API has changed a lot and it will still change a
little more here and there. The command line tool doesn't
have all the required changes to reflect the API changes, so
it's easy to get "internal error" or trigger assertions.
2008-08-28 22:53:15 +03:00
Lasse Collin
7d17818cec Update the code to mostly match the new simpler file format
specification. Simplify things by removing most of the
support for known uncompressed size in most places.
There are some miscellaneous changes here and there too.

The API of liblzma has got many changes and still some
more will be done soon. While most of the code has been
updated, some things are not fixed (the command line tool
will choke with invalid filter chain, if nothing else).

Subblock filter is somewhat broken for now. It will be
updated once the encoded format of the Subblock filter
has been decided.
2008-06-18 18:02:10 +03:00
Lasse Collin
ed6664146f Remove support for pre-C89 libc versions that lack memcpy,
memmove, and memset.
2008-05-11 14:24:42 +03:00
Lasse Collin
3be21fb12f Fixed wrong spelling "limitter" to "limiter". This affects
liblzma's API.
2008-04-28 17:06:34 +03:00
Lasse Collin
c324325f9f Removed src/liblzma/common/sysdefs.h symlink, which was
annoying, because "make dist" put two copies of sysdefs.h
into the tarball instead of the symlink.
2008-04-25 13:58:56 +03:00
Lasse Collin
c99037ea10 Fix a memory leak by calling free(extra->data) in
lzma_extra_free().
2008-04-24 20:25:39 +03:00
Lasse Collin
45e43e1695 Don't fill allocated memory with 0xFD when debugging is
enabled. It hides errors from Valgrind.
2008-03-10 13:41:25 +02:00
Lasse Collin
7e796e312b Do uncompressed size validation in raw encoder. This way
it gets done for not only raw encoder, but also Block
and LZMA_Alone encoders.
2008-02-01 08:39:26 +02:00
Lasse Collin
7dd48578a3 Avoid unneeded function call in raw_common.c. 2008-02-01 08:32:05 +02:00
Lasse Collin
4441e00418 Combine lzma_options_block validation needed by both Block
encoder and decoder, and put the shared things to
block_private.h. Improved the checks a little so that
they may detect too big Compressed Size at initialization
time if lzma_options_block.total_size or .total_limit is
known.

Allow encoding and decoding Blocks with combinations of
fields that are not allowed by the file format specification.
Doing this requires that the application passes such a
combination in lzma_options_lzma; liblzma doesn't do that,
but it's not impossible that someone could find them useful
in some custom file format.
2008-01-25 23:12:36 +02:00
Lasse Collin
7b8fc7e6b5 Improved the memory limitter:
- Added lzma_memlimit_max() and lzma_memlimit_reached()
    API functions.
  - Added simple estimation of malloc()'s memory usage
    overhead.
  - Fixed integer overflow detection in lzma_memlimit_alloc().
  - Made some white space cleanups and added more comments.

The description of lzma_memlimit_max() in memlimit.h is bad
and should be improved.
2008-01-25 19:20:28 +02:00
Lasse Collin
db9df0a960 Fix decoding of empty Metadata Blocks, that don't have
even the Metadata Flags field. Earlier the code allowed
such files; now they are prohibited as the file format
specification requires.
2008-01-23 23:43:00 +02:00
Lasse Collin
765f0b05f6 Fix a bug related to 99e12af4e2.
lzma_metadata.header_metadata_size was not properly set to
zero if the Metadata had only the Metadata Flags field.
2008-01-23 23:38:18 +02:00
Lasse Collin
3a7cc5c3de Fix decoding of Extra Records that have empty Data. 2008-01-23 23:35:49 +02:00
Lasse Collin
e5fdec93e2 Add the trailing '\0' to lzma_extra.data as the API header
already documents.
2008-01-23 22:02:38 +02:00
Lasse Collin
ae0cd09a66 Return LZMA_STREAM_END instead of LZMA_OK if
LZMA_SYNC_FLUSH or LZMA_FULL_FLUSH is used when
there's no unfinished Block open.
2008-01-23 21:05:33 +02:00
Lasse Collin
99e12af4e2 Fix Size of Header Metadata Block handling. Now
lzma_metadata.header_metadata_size == LZMA_VLI_VALUE_UNKNOWN
is not allowed at all. To indicate missing Header Metadata
Block, header_metadata_size must be set to zero. This is
what Metadata decoder does after this patch too.

Note that other missing fields in lzma_metadata are still
indicated with LZMA_VLI_VALUE_UNKNOWN. This isn't as
illogical as it sounds at first, because missing Size of
Header Metadata Block means that Header Metadata Block is
not present in the Stream. With other Metadata fields,
a missing field means only that the value is unknown.
2008-01-23 13:36:07 +02:00
Lasse Collin
58b78ab20c Fix a memory leak in metadata_decoder.c. 2008-01-23 13:15:55 +02:00
Lasse Collin
4d8cdbdab4 Fix the fix 863028cb7a which
just moved to problem. Now it's really fixed.
2008-01-23 13:13:58 +02:00
Lasse Collin
67321de963 Take advantage of return_if_error() macro in
lzma_info_metadata_set() in info.c.
2008-01-23 00:21:04 +02:00
Lasse Collin
863028cb7a Fixed a dangling pointer that caused invalid free(). 2008-01-23 00:18:32 +02:00
Lasse Collin
cf49f42a6b Added lzma_easy_* functions. These should make using
liblzma as easy as using zlib, because the easy API
don't require developers to know any fancy LZMA options.

Note that Multi-Block Stream encoding is currently broken.
The easy API should be OK, the bug(s) are elsewhere.
2008-01-22 22:49:24 +02:00
Lasse Collin
1747b85a43 Fix Multi-Block Stream encoder's EOPM usage. 2008-01-22 21:16:22 +02:00
Lasse Collin
0ed6f1adce Made lzma_extra pointers const in lzma_options_stream. 2008-01-22 00:15:11 +02:00
Lasse Collin
23c227a864 Revised the Delta filter implementation. The initialization
function is still shared between encoder and decoder, but the
actual coding is in separate files for encoder and decoder.

There are now separate functions for the actual delta
calculation depending on if Delta is the last filter in the
chain or not. If it is the last, the new code copies the
data from input to output buffer and does the delta
calculation at the same time. The old code first copied the
data, then did the delta in the target buffer, which required
reading through the data twice.

Support for LZMA_SYNC_FLUSH was added to the Delta encoder.
This doesn't change anything in the file format.
2008-01-19 15:19:21 +02:00