Used Version: 1.0 REV 5
Website: http://www.gnu.org/software/adns/ | http://adns.jgaa.com
-Title: BZip2
-Used Version: 1.0.6
-Website: http://www.bzip.org
-
Title: LibXML
Used Version: 2.9.9
Website: http://xmlsoft.org | ftp://xmlsoft.org/libxml2/
add_subdirectory(adns)
-add_subdirectory(bzip2)
add_subdirectory(cardlib)
add_subdirectory(freetype)
add_subdirectory(libmpg123)
+++ /dev/null
- ------------------------------------------------------------------
- This file is part of bzip2/libbzip2, a program and library for
- lossless, block-sorting data compression.
-
- bzip2/libbzip2 version 1.0.6 of 6 September 2010
- Copyright (C) 1996-2010 Julian Seward <jseward@bzip.org>
-
- Please read the WARNING, DISCLAIMER and PATENTS sections in the
- README file.
-
- This program is released under the terms of the license contained
- in the file LICENSE.
- ------------------------------------------------------------------
-
-
-0.9.0
-~~~~~
-First version.
-
-
-0.9.0a
-~~~~~~
-Removed 'ranlib' from Makefile, since most modern Unix-es
-don't need it, or even know about it.
-
-
-0.9.0b
-~~~~~~
-Fixed a problem with error reporting in bzip2.c. This does not effect
-the library in any way. Problem is: versions 0.9.0 and 0.9.0a (of the
-program proper) compress and decompress correctly, but give misleading
-error messages (internal panics) when an I/O error occurs, instead of
-reporting the problem correctly. This shouldn't give any data loss
-(as far as I can see), but is confusing.
-
-Made the inline declarations disappear for non-GCC compilers.
-
-
-0.9.0c
-~~~~~~
-Fixed some problems in the library pertaining to some boundary cases.
-This makes the library behave more correctly in those situations. The
-fixes apply only to features (calls and parameters) not used by
-bzip2.c, so the non-fixedness of them in previous versions has no
-effect on reliability of bzip2.c.
-
-In bzlib.c:
- * made zero-length BZ_FLUSH work correctly in bzCompress().
- * fixed bzWrite/bzRead to ignore zero-length requests.
- * fixed bzread to correctly handle read requests after EOF.
- * wrong parameter order in call to bzDecompressInit in
- bzBuffToBuffDecompress. Fixed.
-
-In compress.c:
- * changed setting of nGroups in sendMTFValues() so as to
- do a bit better on small files. This _does_ effect
- bzip2.c.
-
-
-0.9.5a
-~~~~~~
-Major change: add a fallback sorting algorithm (blocksort.c)
-to give reasonable behaviour even for very repetitive inputs.
-Nuked --repetitive-best and --repetitive-fast since they are
-no longer useful.
-
-Minor changes: mostly a whole bunch of small changes/
-bugfixes in the driver (bzip2.c). Changes pertaining to the
-user interface are:
-
- allow decompression of symlink'd files to stdout
- decompress/test files even without .bz2 extension
- give more accurate error messages for I/O errors
- when compressing/decompressing to stdout, don't catch control-C
- read flags from BZIP2 and BZIP environment variables
- decline to break hard links to a file unless forced with -f
- allow -c flag even with no filenames
- preserve file ownerships as far as possible
- make -s -1 give the expected block size (100k)
- add a flag -q --quiet to suppress nonessential warnings
- stop decoding flags after --, so files beginning in - can be handled
- resolved inconsistent naming: bzcat or bz2cat ?
- bzip2 --help now returns 0
-
-Programming-level changes are:
-
- fixed syntax error in GET_LL4 for Borland C++ 5.02
- let bzBuffToBuffDecompress return BZ_DATA_ERROR{_MAGIC}
- fix overshoot of mode-string end in bzopen_or_bzdopen
- wrapped bzlib.h in #ifdef __cplusplus ... extern "C" { ... }
- close file handles under all error conditions
- added minor mods so it compiles with DJGPP out of the box
- fixed Makefile so it doesn't give problems with BSD make
- fix uninitialised memory reads in dlltest.c
-
-0.9.5b
-~~~~~~
-Open stdin/stdout in binary mode for DJGPP.
-
-0.9.5c
-~~~~~~
-Changed BZ_N_OVERSHOOT to be ... + 2 instead of ... + 1. The + 1
-version could cause the sorted order to be wrong in some extremely
-obscure cases. Also changed setting of quadrant in blocksort.c.
-
-0.9.5d
-~~~~~~
-The only functional change is to make bzlibVersion() in the library
-return the correct string. This has no effect whatsoever on the
-functioning of the bzip2 program or library. Added a couple of casts
-so the library compiles without warnings at level 3 in MS Visual
-Studio 6.0. Included a Y2K statement in the file Y2K_INFO. All other
-changes are minor documentation changes.
-
-1.0
-~~~
-Several minor bugfixes and enhancements:
-
-* Large file support. The library uses 64-bit counters to
- count the volume of data passing through it. bzip2.c
- is now compiled with -D_FILE_OFFSET_BITS=64 to get large
- file support from the C library. -v correctly prints out
- file sizes greater than 4 gigabytes. All these changes have
- been made without assuming a 64-bit platform or a C compiler
- which supports 64-bit ints, so, except for the C library
- aspect, they are fully portable.
-
-* Decompression robustness. The library/program should be
- robust to any corruption of compressed data, detecting and
- handling _all_ corruption, instead of merely relying on
- the CRCs. What this means is that the program should
- never crash, given corrupted data, and the library should
- always return BZ_DATA_ERROR.
-
-* Fixed an obscure race-condition bug only ever observed on
- Solaris, in which, if you were very unlucky and issued
- control-C at exactly the wrong time, both input and output
- files would be deleted.
-
-* Don't run out of file handles on test/decompression when
- large numbers of files have invalid magic numbers.
-
-* Avoid library namespace pollution. Prefix all exported
- symbols with BZ2_.
-
-* Minor sorting enhancements from my DCC2000 paper.
-
-* Advance the version number to 1.0, so as to counteract the
- (false-in-this-case) impression some people have that programs
- with version numbers less than 1.0 are in some way, experimental,
- pre-release versions.
-
-* Create an initial Makefile-libbz2_so to build a shared library.
- Yes, I know I should really use libtool et al ...
-
-* Make the program exit with 2 instead of 0 when decompression
- fails due to a bad magic number (ie, an invalid bzip2 header).
- Also exit with 1 (as the manual claims :-) whenever a diagnostic
- message would have been printed AND the corresponding operation
- is aborted, for example
- bzip2: Output file xx already exists.
- When a diagnostic message is printed but the operation is not
- aborted, for example
- bzip2: Can't guess original name for wurble -- using wurble.out
- then the exit value 0 is returned, unless some other problem is
- also detected.
-
- I think it corresponds more closely to what the manual claims now.
-
-
-1.0.1
-~~~~~
-* Modified dlltest.c so it uses the new BZ2_ naming scheme.
-* Modified makefile-msc to fix minor build probs on Win2k.
-* Updated README.COMPILATION.PROBLEMS.
-
-There are no functionality changes or bug fixes relative to version
-1.0.0. This is just a documentation update + a fix for minor Win32
-build problems. For almost everyone, upgrading from 1.0.0 to 1.0.1 is
-utterly pointless. Don't bother.
-
-
-1.0.2
-~~~~~
-A bug fix release, addressing various minor issues which have appeared
-in the 18 or so months since 1.0.1 was released. Most of the fixes
-are to do with file-handling or documentation bugs. To the best of my
-knowledge, there have been no data-loss-causing bugs reported in the
-compression/decompression engine of 1.0.0 or 1.0.1.
-
-Note that this release does not improve the rather crude build system
-for Unix platforms. The general plan here is to autoconfiscate/
-libtoolise 1.0.2 soon after release, and release the result as 1.1.0
-or perhaps 1.2.0. That, however, is still just a plan at this point.
-
-Here are the changes in 1.0.2. Bug-reporters and/or patch-senders in
-parentheses.
-
-* Fix an infinite segfault loop in 1.0.1 when a directory is
- encountered in -f (force) mode.
- (Trond Eivind Glomsrod, Nicholas Nethercote, Volker Schmidt)
-
-* Avoid double fclose() of output file on certain I/O error paths.
- (Solar Designer)
-
-* Don't fail with internal error 1007 when fed a long stream (> 48MB)
- of byte 251. Also print useful message suggesting that 1007s may be
- caused by bad memory.
- (noticed by Juan Pedro Vallejo, fixed by me)
-
-* Fix uninitialised variable silly bug in demo prog dlltest.c.
- (Jorj Bauer)
-
-* Remove 512-MB limitation on recovered file size for bzip2recover
- on selected platforms which support 64-bit ints. At the moment
- all GCC supported platforms, and Win32.
- (me, Alson van der Meulen)
-
-* Hard-code header byte values, to give correct operation on platforms
- using EBCDIC as their native character set (IBM's OS/390).
- (Leland Lucius)
-
-* Copy file access times correctly.
- (Marty Leisner)
-
-* Add distclean and check targets to Makefile.
- (Michael Carmack)
-
-* Parameterise use of ar and ranlib in Makefile. Also add $(LDFLAGS).
- (Rich Ireland, Bo Thorsen)
-
-* Pass -p (create parent dirs as needed) to mkdir during make install.
- (Jeremy Fusco)
-
-* Dereference symlinks when copying file permissions in -f mode.
- (Volker Schmidt)
-
-* Majorly simplify implementation of uInt64_qrm10.
- (Bo Lindbergh)
-
-* Check the input file still exists before deleting the output one,
- when aborting in cleanUpAndFail().
- (Joerg Prante, Robert Linden, Matthias Krings)
-
-Also a bunch of patches courtesy of Philippe Troin, the Debian maintainer
-of bzip2:
-
-* Wrapper scripts (with manpages): bzdiff, bzgrep, bzmore.
-
-* Spelling changes and minor enhancements in bzip2.1.
-
-* Avoid race condition between creating the output file and setting its
- interim permissions safely, by using fopen_output_safely().
- No changes to bzip2recover since there is no issue with file
- permissions there.
-
-* do not print senseless report with -v when compressing an empty
- file.
-
-* bzcat -f works on non-bzip2 files.
-
-* do not try to escape shell meta-characters on unix (the shell takes
- care of these).
-
-* added --fast and --best aliases for -1 -9 for gzip compatibility.
-
-
-1.0.3 (15 Feb 05)
-~~~~~~~~~~~~~~~~~
-Fixes some minor bugs since the last version, 1.0.2.
-
-* Further robustification against corrupted compressed data.
- There are currently no known bitstreams which can cause the
- decompressor to crash, loop or access memory which does not
- belong to it. If you are using bzip2 or the library to
- decompress bitstreams from untrusted sources, an upgrade
- to 1.0.3 is recommended. This fixes CAN-2005-1260.
-
-* The documentation has been converted to XML, from which html
- and pdf can be derived.
-
-* Various minor bugs in the documentation have been fixed.
-
-* Fixes for various compilation warnings with newer versions of
- gcc, and on 64-bit platforms.
-
-* The BZ_NO_STDIO cpp symbol was not properly observed in 1.0.2.
- This has been fixed.
-
-
-1.0.4 (20 Dec 06)
-~~~~~~~~~~~~~~~~~
-Fixes some minor bugs since the last version, 1.0.3.
-
-* Fix file permissions race problem (CAN-2005-0953).
-
-* Avoid possible segfault in BZ2_bzclose. From Coverity's NetBSD
- scan.
-
-* 'const'/prototype cleanups in the C code.
-
-* Change default install location to /usr/local, and handle multiple
- 'make install's without error.
-
-* Sanitise file names more carefully in bzgrep. Fixes CAN-2005-0758
- to the extent that applies to bzgrep.
-
-* Use 'mktemp' rather than 'tempfile' in bzdiff.
-
-* Tighten up a couple of assertions in blocksort.c following automated
- analysis.
-
-* Fix minor doc/comment bugs.
-
-
-1.0.5 (10 Dec 07)
-~~~~~~~~~~~~~~~~~
-Security fix only. Fixes CERT-FI 20469 as it applies to bzip2.
-
-
-1.0.6 (6 Sept 10)
-~~~~~~~~~~~~~~~~~
-
-* Security fix for CVE-2010-0405. This was reported by Mikolaj
- Izdebski.
-
-* Make the documentation build on Ubuntu 10.04
+++ /dev/null
-
-add_definitions(-DBZ_NO_STDIO -DBZ_DECOMPRESS_ONLY)
-spec2def(unbzip2.sys unbzip2.spec)
-
-list(APPEND SOURCE
- bzlib.c
- randtable.c
- crctable.c
- decompress.c
- huffman.c
- dllmain.c
- bzlib_private.h)
-
-add_library(bzip2 MODULE
- ${SOURCE}
- ${CMAKE_CURRENT_BINARY_DIR}/unbzip2.def)
-
-set_module_type(bzip2 kernelmodedriver)
-add_importlibs(bzip2 ntoskrnl)
-target_link_libraries(bzip2 libcntpr)
-add_pch(bzip2 bzlib_private.h SOURCE)
-set_target_properties(bzip2 PROPERTIES OUTPUT_NAME "unbzip2")
+++ /dev/null
-
---------------------------------------------------------------------------
-
-This program, "bzip2", the associated library "libbzip2", and all
-documentation, are copyright (C) 1996-2010 Julian R Seward. All
-rights reserved.
-
-Redistribution and use in source and binary forms, with or without
-modification, are permitted provided that the following conditions
-are met:
-
-1. Redistributions of source code must retain the above copyright
- notice, this list of conditions and the following disclaimer.
-
-2. The origin of this software must not be misrepresented; you must
- not claim that you wrote the original software. If you use this
- software in a product, an acknowledgment in the product
- documentation would be appreciated but is not required.
-
-3. Altered source versions must be plainly marked as such, and must
- not be misrepresented as being the original software.
-
-4. The name of the author may not be used to endorse or promote
- products derived from this software without specific prior written
- permission.
-
-THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS
-OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
-WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
-ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
-DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
-DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
-GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
-INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
-WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
-NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
-SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-Julian Seward, jseward@bzip.org
-bzip2/libbzip2 version 1.0.6 of 6 September 2010
-
---------------------------------------------------------------------------
+++ /dev/null
-
-This is the README for bzip2/libzip2.
-This version is fully compatible with the previous public releases.
-
-------------------------------------------------------------------
-This file is part of bzip2/libbzip2, a program and library for
-lossless, block-sorting data compression.
-
-bzip2/libbzip2 version 1.0.6 of 6 September 2010
-Copyright (C) 1996-2010 Julian Seward <jseward@bzip.org>
-
-Please read the WARNING, DISCLAIMER and PATENTS sections in this file.
-
-This program is released under the terms of the license contained
-in the file LICENSE.
-------------------------------------------------------------------
-
-Complete documentation is available in Postscript form (manual.ps),
-PDF (manual.pdf) or html (manual.html). A plain-text version of the
-manual page is available as bzip2.txt.
-
-
-HOW TO BUILD -- UNIX
-
-Type 'make'. This builds the library libbz2.a and then the programs
-bzip2 and bzip2recover. Six self-tests are run. If the self-tests
-complete ok, carry on to installation:
-
-To install in /usr/local/bin, /usr/local/lib, /usr/local/man and
-/usr/local/include, type
-
- make install
-
-To install somewhere else, eg, /xxx/yyy/{bin,lib,man,include}, type
-
- make install PREFIX=/xxx/yyy
-
-If you are (justifiably) paranoid and want to see what 'make install'
-is going to do, you can first do
-
- make -n install or
- make -n install PREFIX=/xxx/yyy respectively.
-
-The -n instructs make to show the commands it would execute, but not
-actually execute them.
-
-
-HOW TO BUILD -- UNIX, shared library libbz2.so.
-
-Do 'make -f Makefile-libbz2_so'. This Makefile seems to work for
-Linux-ELF (RedHat 7.2 on an x86 box), with gcc. I make no claims
-that it works for any other platform, though I suspect it probably
-will work for most platforms employing both ELF and gcc.
-
-bzip2-shared, a client of the shared library, is also built, but not
-self-tested. So I suggest you also build using the normal Makefile,
-since that conducts a self-test. A second reason to prefer the
-version statically linked to the library is that, on x86 platforms,
-building shared objects makes a valuable register (%ebx) unavailable
-to gcc, resulting in a slowdown of 10%-20%, at least for bzip2.
-
-Important note for people upgrading .so's from 0.9.0/0.9.5 to version
-1.0.X. All the functions in the library have been renamed, from (eg)
-bzCompress to BZ2_bzCompress, to avoid namespace pollution.
-Unfortunately this means that the libbz2.so created by
-Makefile-libbz2_so will not work with any program which used an older
-version of the library. I do encourage library clients to make the
-effort to upgrade to use version 1.0, since it is both faster and more
-robust than previous versions.
-
-
-HOW TO BUILD -- Windows 95, NT, DOS, Mac, etc.
-
-It's difficult for me to support compilation on all these platforms.
-My approach is to collect binaries for these platforms, and put them
-on the master web site (http://www.bzip.org). Look there. However
-(FWIW), bzip2-1.0.X is very standard ANSI C and should compile
-unmodified with MS Visual C. If you have difficulties building, you
-might want to read README.COMPILATION.PROBLEMS.
-
-At least using MS Visual C++ 6, you can build from the unmodified
-sources by issuing, in a command shell:
-
- nmake -f makefile.msc
-
-(you may need to first run the MSVC-provided script VCVARS32.BAT
- so as to set up paths to the MSVC tools correctly).
-
-
-VALIDATION
-
-Correct operation, in the sense that a compressed file can always be
-decompressed to reproduce the original, is obviously of paramount
-importance. To validate bzip2, I used a modified version of Mark
-Nelson's churn program. Churn is an automated test driver which
-recursively traverses a directory structure, using bzip2 to compress
-and then decompress each file it encounters, and checking that the
-decompressed data is the same as the original.
-
-
-
-Please read and be aware of the following:
-
-WARNING:
-
- This program and library (attempts to) compress data by
- performing several non-trivial transformations on it.
- Unless you are 100% familiar with *all* the algorithms
- contained herein, and with the consequences of modifying them,
- you should NOT meddle with the compression or decompression
- machinery. Incorrect changes can and very likely *will*
- lead to disastrous loss of data.
-
-
-DISCLAIMER:
-
- I TAKE NO RESPONSIBILITY FOR ANY LOSS OF DATA ARISING FROM THE
- USE OF THIS PROGRAM/LIBRARY, HOWSOEVER CAUSED.
-
- Every compression of a file implies an assumption that the
- compressed file can be decompressed to reproduce the original.
- Great efforts in design, coding and testing have been made to
- ensure that this program works correctly. However, the complexity
- of the algorithms, and, in particular, the presence of various
- special cases in the code which occur with very low but non-zero
- probability make it impossible to rule out the possibility of bugs
- remaining in the program. DO NOT COMPRESS ANY DATA WITH THIS
- PROGRAM UNLESS YOU ARE PREPARED TO ACCEPT THE POSSIBILITY, HOWEVER
- SMALL, THAT THE DATA WILL NOT BE RECOVERABLE.
-
- That is not to say this program is inherently unreliable.
- Indeed, I very much hope the opposite is true. bzip2/libbzip2
- has been carefully constructed and extensively tested.
-
-
-PATENTS:
-
- To the best of my knowledge, bzip2/libbzip2 does not use any
- patented algorithms. However, I do not have the resources
- to carry out a patent search. Therefore I cannot give any
- guarantee of the above statement.
-
-
-
-WHAT'S NEW IN 0.9.0 (as compared to 0.1pl2) ?
-
- * Approx 10% faster compression, 30% faster decompression
- * -t (test mode) is a lot quicker
- * Can decompress concatenated compressed files
- * Programming interface, so programs can directly read/write .bz2 files
- * Less restrictive (BSD-style) licensing
- * Flag handling more compatible with GNU gzip
- * Much more documentation, i.e., a proper user manual
- * Hopefully, improved portability (at least of the library)
-
-WHAT'S NEW IN 0.9.5 ?
-
- * Compression speed is much less sensitive to the input
- data than in previous versions. Specifically, the very
- slow performance caused by repetitive data is fixed.
- * Many small improvements in file and flag handling.
- * A Y2K statement.
-
-WHAT'S NEW IN 1.0.0 ?
-
- See the CHANGES file.
-
-WHAT'S NEW IN 1.0.2 ?
-
- See the CHANGES file.
-
-WHAT'S NEW IN 1.0.3 ?
-
- See the CHANGES file.
-
-WHAT'S NEW IN 1.0.4 ?
-
- See the CHANGES file.
-
-WHAT'S NEW IN 1.0.5 ?
-
- See the CHANGES file.
-
-WHAT'S NEW IN 1.0.6 ?
-
- See the CHANGES file.
-
-
-I hope you find bzip2 useful. Feel free to contact me at
- jseward@bzip.org
-if you have any suggestions or queries. Many people mailed me with
-comments, suggestions and patches after the releases of bzip-0.15,
-bzip-0.21, and bzip2 versions 0.1pl2, 0.9.0, 0.9.5, 1.0.0, 1.0.1,
-1.0.2 and 1.0.3, and the changes in bzip2 are largely a result of this
-feedback. I thank you for your comments.
-
-bzip2's "home" is http://www.bzip.org/
-
-Julian Seward
-jseward@bzip.org
-Cambridge, UK.
-
-18 July 1996 (version 0.15)
-25 August 1996 (version 0.21)
- 7 August 1997 (bzip2, version 0.1)
-29 August 1997 (bzip2, version 0.1pl2)
-23 August 1998 (bzip2, version 0.9.0)
- 8 June 1999 (bzip2, version 0.9.5)
- 4 Sept 1999 (bzip2, version 0.9.5d)
- 5 May 2000 (bzip2, version 1.0pre8)
-30 December 2001 (bzip2, version 1.0.2pre1)
-15 February 2005 (bzip2, version 1.0.3)
-20 December 2006 (bzip2, version 1.0.4)
-10 December 2007 (bzip2, version 1.0.5)
- 6 Sept 2010 (bzip2, version 1.0.6)
+++ /dev/null
-2001-10-16: Imported bzip2 code into reactos project to create a decompression
-library for use by the ramdisk driver to decompress the ramdisk image into mem
-Modified makefile and some source code to build a .dll with only the
-decompression code. There are 3 exports: the decompression routine, and two
-function pointers that must be initialized to C malloc and free routines.
-
- - Phillip Susi
-
+++ /dev/null
-
-Y2K status of bzip2 and libbzip2, versions 0.1, 0.9.0 and 0.9.5
-~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
-
-Informally speaking:
- bzip2 is a compression program built on top of libbzip2,
- a library which does the real work of compression and
- decompression. As far as I am aware, libbzip2 does not have
- any date-related code at all.
-
- bzip2 itself copies dates from source to destination files
- when compressing or decompressing, using the 'stat' and 'utime'
- UNIX system calls. It doesn't examine, manipulate or store the
- dates in any way. So as far as I can see, there shouldn't be any
- problem with bzip2 providing 'stat' and 'utime' work correctly
- on your system.
-
- On non-unix platforms (those for which BZ_UNIX in bzip2.c is
- not set to 1), bzip2 doesn't even do the date copying.
-
- Overall, informally speaking, I don't think bzip2 or libbzip2
- have a Y2K problem.
-
-Formally speaking:
- I am not prepared to offer you any assurance whatsoever
- regarding Y2K issues in my software. You alone assume the
- entire risk of using the software. The disclaimer of liability
- in the LICENSE file in the bzip2 source distribution continues
- to apply on this issue as with every other issue pertaining
- to the software.
-
-Julian Seward
-Cambridge, UK
-25 August 1999
+++ /dev/null
-
-/*-------------------------------------------------------------*/
-/*--- Block sorting machinery ---*/
-/*--- blocksort.c ---*/
-/*-------------------------------------------------------------*/
-
-/* ------------------------------------------------------------------
- This file is part of bzip2/libbzip2, a program and library for
- lossless, block-sorting data compression.
-
- bzip2/libbzip2 version 1.0.6 of 6 September 2010
- Copyright (C) 1996-2010 Julian Seward <jseward@bzip.org>
-
- Please read the WARNING, DISCLAIMER and PATENTS sections in the
- README file.
-
- This program is released under the terms of the license contained
- in the file LICENSE.
- ------------------------------------------------------------------ */
-
-
-#include "bzlib_private.h"
-
-/*---------------------------------------------*/
-/*--- Fallback O(N log(N)^2) sorting ---*/
-/*--- algorithm, for repetitive blocks ---*/
-/*---------------------------------------------*/
-
-/*---------------------------------------------*/
-static
-__inline__
-void fallbackSimpleSort ( UInt32* fmap,
- UInt32* eclass,
- Int32 lo,
- Int32 hi )
-{
- Int32 i, j, tmp;
- UInt32 ec_tmp;
-
- if (lo == hi) return;
-
- if (hi - lo > 3) {
- for ( i = hi-4; i >= lo; i-- ) {
- tmp = fmap[i];
- ec_tmp = eclass[tmp];
- for ( j = i+4; j <= hi && ec_tmp > eclass[fmap[j]]; j += 4 )
- fmap[j-4] = fmap[j];
- fmap[j-4] = tmp;
- }
- }
-
- for ( i = hi-1; i >= lo; i-- ) {
- tmp = fmap[i];
- ec_tmp = eclass[tmp];
- for ( j = i+1; j <= hi && ec_tmp > eclass[fmap[j]]; j++ )
- fmap[j-1] = fmap[j];
- fmap[j-1] = tmp;
- }
-}
-
-
-/*---------------------------------------------*/
-#define fswap(zz1, zz2) \
- { Int32 zztmp = zz1; zz1 = zz2; zz2 = zztmp; }
-
-#define fvswap(zzp1, zzp2, zzn) \
-{ \
- Int32 yyp1 = (zzp1); \
- Int32 yyp2 = (zzp2); \
- Int32 yyn = (zzn); \
- while (yyn > 0) { \
- fswap(fmap[yyp1], fmap[yyp2]); \
- yyp1++; yyp2++; yyn--; \
- } \
-}
-
-
-#define fmin(a,b) ((a) < (b)) ? (a) : (b)
-
-#define fpush(lz,hz) { stackLo[sp] = lz; \
- stackHi[sp] = hz; \
- sp++; }
-
-#define fpop(lz,hz) { sp--; \
- lz = stackLo[sp]; \
- hz = stackHi[sp]; }
-
-#define FALLBACK_QSORT_SMALL_THRESH 10
-#define FALLBACK_QSORT_STACK_SIZE 100
-
-
-static
-void fallbackQSort3 ( UInt32* fmap,
- UInt32* eclass,
- Int32 loSt,
- Int32 hiSt )
-{
- Int32 unLo, unHi, ltLo, gtHi, n, m;
- Int32 sp, lo, hi;
- UInt32 med, r, r3;
- Int32 stackLo[FALLBACK_QSORT_STACK_SIZE];
- Int32 stackHi[FALLBACK_QSORT_STACK_SIZE];
-
- r = 0;
-
- sp = 0;
- fpush ( loSt, hiSt );
-
- while (sp > 0) {
-
- AssertH ( sp < FALLBACK_QSORT_STACK_SIZE - 1, 1004 );
-
- fpop ( lo, hi );
- if (hi - lo < FALLBACK_QSORT_SMALL_THRESH) {
- fallbackSimpleSort ( fmap, eclass, lo, hi );
- continue;
- }
-
- /* Random partitioning. Median of 3 sometimes fails to
- avoid bad cases. Median of 9 seems to help but
- looks rather expensive. This too seems to work but
- is cheaper. Guidance for the magic constants
- 7621 and 32768 is taken from Sedgewick's algorithms
- book, chapter 35.
- */
- r = ((r * 7621) + 1) % 32768;
- r3 = r % 3;
- if (r3 == 0) med = eclass[fmap[lo]]; else
- if (r3 == 1) med = eclass[fmap[(lo+hi)>>1]]; else
- med = eclass[fmap[hi]];
-
- unLo = ltLo = lo;
- unHi = gtHi = hi;
-
- while (1) {
- while (1) {
- if (unLo > unHi) break;
- n = (Int32)eclass[fmap[unLo]] - (Int32)med;
- if (n == 0) {
- fswap(fmap[unLo], fmap[ltLo]);
- ltLo++; unLo++;
- continue;
- };
- if (n > 0) break;
- unLo++;
- }
- while (1) {
- if (unLo > unHi) break;
- n = (Int32)eclass[fmap[unHi]] - (Int32)med;
- if (n == 0) {
- fswap(fmap[unHi], fmap[gtHi]);
- gtHi--; unHi--;
- continue;
- };
- if (n < 0) break;
- unHi--;
- }
- if (unLo > unHi) break;
- fswap(fmap[unLo], fmap[unHi]); unLo++; unHi--;
- }
-
- AssertD ( unHi == unLo-1, "fallbackQSort3(2)" );
-
- if (gtHi < ltLo) continue;
-
- n = fmin(ltLo-lo, unLo-ltLo); fvswap(lo, unLo-n, n);
- m = fmin(hi-gtHi, gtHi-unHi); fvswap(unLo, hi-m+1, m);
-
- n = lo + unLo - ltLo - 1;
- m = hi - (gtHi - unHi) + 1;
-
- if (n - lo > hi - m) {
- fpush ( lo, n );
- fpush ( m, hi );
- } else {
- fpush ( m, hi );
- fpush ( lo, n );
- }
- }
-}
-
-#undef fmin
-#undef fpush
-#undef fpop
-#undef fswap
-#undef fvswap
-#undef FALLBACK_QSORT_SMALL_THRESH
-#undef FALLBACK_QSORT_STACK_SIZE
-
-
-/*---------------------------------------------*/
-/* Pre:
- nblock > 0
- eclass exists for [0 .. nblock-1]
- ((UChar*)eclass) [0 .. nblock-1] holds block
- ptr exists for [0 .. nblock-1]
-
- Post:
- ((UChar*)eclass) [0 .. nblock-1] holds block
- All other areas of eclass destroyed
- fmap [0 .. nblock-1] holds sorted order
- bhtab [ 0 .. 2+(nblock/32) ] destroyed
-*/
-
-#define SET_BH(zz) bhtab[(zz) >> 5] |= (1 << ((zz) & 31))
-#define CLEAR_BH(zz) bhtab[(zz) >> 5] &= ~(1 << ((zz) & 31))
-#define ISSET_BH(zz) (bhtab[(zz) >> 5] & (1 << ((zz) & 31)))
-#define WORD_BH(zz) bhtab[(zz) >> 5]
-#define UNALIGNED_BH(zz) ((zz) & 0x01f)
-
-static
-void fallbackSort ( UInt32* fmap,
- UInt32* eclass,
- UInt32* bhtab,
- Int32 nblock,
- Int32 verb )
-{
- Int32 ftab[257];
- Int32 ftabCopy[256];
- Int32 H, i, j, k, l, r, cc, cc1;
- Int32 nNotDone;
- Int32 nBhtab;
- UChar* eclass8 = (UChar*)eclass;
-
- /*--
- Initial 1-char radix sort to generate
- initial fmap and initial BH bits.
- --*/
- if (verb >= 4)
- VPrintf0 ( " bucket sorting ...\n" );
- for (i = 0; i < 257; i++) ftab[i] = 0;
- for (i = 0; i < nblock; i++) ftab[eclass8[i]]++;
- for (i = 0; i < 256; i++) ftabCopy[i] = ftab[i];
- for (i = 1; i < 257; i++) ftab[i] += ftab[i-1];
-
- for (i = 0; i < nblock; i++) {
- j = eclass8[i];
- k = ftab[j] - 1;
- ftab[j] = k;
- fmap[k] = i;
- }
-
- nBhtab = 2 + (nblock / 32);
- for (i = 0; i < nBhtab; i++) bhtab[i] = 0;
- for (i = 0; i < 256; i++) SET_BH(ftab[i]);
-
- /*--
- Inductively refine the buckets. Kind-of an
- "exponential radix sort" (!), inspired by the
- Manber-Myers suffix array construction algorithm.
- --*/
-
- /*-- set sentinel bits for block-end detection --*/
- for (i = 0; i < 32; i++) {
- SET_BH(nblock + 2*i);
- CLEAR_BH(nblock + 2*i + 1);
- }
-
- /*-- the log(N) loop --*/
- H = 1;
- while (1) {
-
- if (verb >= 4)
- VPrintf1 ( " depth %6d has ", H );
-
- j = 0;
- for (i = 0; i < nblock; i++) {
- if (ISSET_BH(i)) j = i;
- k = fmap[i] - H; if (k < 0) k += nblock;
- eclass[k] = j;
- }
-
- nNotDone = 0;
- r = -1;
- while (1) {
-
- /*-- find the next non-singleton bucket --*/
- k = r + 1;
- while (ISSET_BH(k) && UNALIGNED_BH(k)) k++;
- if (ISSET_BH(k)) {
- while (WORD_BH(k) == 0xffffffff) k += 32;
- while (ISSET_BH(k)) k++;
- }
- l = k - 1;
- if (l >= nblock) break;
- while (!ISSET_BH(k) && UNALIGNED_BH(k)) k++;
- if (!ISSET_BH(k)) {
- while (WORD_BH(k) == 0x00000000) k += 32;
- while (!ISSET_BH(k)) k++;
- }
- r = k - 1;
- if (r >= nblock) break;
-
- /*-- now [l, r] bracket current bucket --*/
- if (r > l) {
- nNotDone += (r - l + 1);
- fallbackQSort3 ( fmap, eclass, l, r );
-
- /*-- scan bucket and generate header bits-- */
- cc = -1;
- for (i = l; i <= r; i++) {
- cc1 = eclass[fmap[i]];
- if (cc != cc1) { SET_BH(i); cc = cc1; };
- }
- }
- }
-
- if (verb >= 4)
- VPrintf1 ( "%6d unresolved strings\n", nNotDone );
-
- H *= 2;
- if (H > nblock || nNotDone == 0) break;
- }
-
- /*--
- Reconstruct the original block in
- eclass8 [0 .. nblock-1], since the
- previous phase destroyed it.
- --*/
- if (verb >= 4)
- VPrintf0 ( " reconstructing block ...\n" );
- j = 0;
- for (i = 0; i < nblock; i++) {
- while (ftabCopy[j] == 0) j++;
- ftabCopy[j]--;
- eclass8[fmap[i]] = (UChar)j;
- }
- AssertH ( j < 256, 1005 );
-}
-
-#undef SET_BH
-#undef CLEAR_BH
-#undef ISSET_BH
-#undef WORD_BH
-#undef UNALIGNED_BH
-
-
-/*---------------------------------------------*/
-/*--- The main, O(N^2 log(N)) sorting ---*/
-/*--- algorithm. Faster for "normal" ---*/
-/*--- non-repetitive blocks. ---*/
-/*---------------------------------------------*/
-
-/*---------------------------------------------*/
-static
-__inline__
-Bool mainGtU ( UInt32 i1,
- UInt32 i2,
- UChar* block,
- UInt16* quadrant,
- UInt32 nblock,
- Int32* budget )
-{
- Int32 k;
- UChar c1, c2;
- UInt16 s1, s2;
-
- AssertD ( i1 != i2, "mainGtU" );
- /* 1 */
- c1 = block[i1]; c2 = block[i2];
- if (c1 != c2) return (c1 > c2);
- i1++; i2++;
- /* 2 */
- c1 = block[i1]; c2 = block[i2];
- if (c1 != c2) return (c1 > c2);
- i1++; i2++;
- /* 3 */
- c1 = block[i1]; c2 = block[i2];
- if (c1 != c2) return (c1 > c2);
- i1++; i2++;
- /* 4 */
- c1 = block[i1]; c2 = block[i2];
- if (c1 != c2) return (c1 > c2);
- i1++; i2++;
- /* 5 */
- c1 = block[i1]; c2 = block[i2];
- if (c1 != c2) return (c1 > c2);
- i1++; i2++;
- /* 6 */
- c1 = block[i1]; c2 = block[i2];
- if (c1 != c2) return (c1 > c2);
- i1++; i2++;
- /* 7 */
- c1 = block[i1]; c2 = block[i2];
- if (c1 != c2) return (c1 > c2);
- i1++; i2++;
- /* 8 */
- c1 = block[i1]; c2 = block[i2];
- if (c1 != c2) return (c1 > c2);
- i1++; i2++;
- /* 9 */
- c1 = block[i1]; c2 = block[i2];
- if (c1 != c2) return (c1 > c2);
- i1++; i2++;
- /* 10 */
- c1 = block[i1]; c2 = block[i2];
- if (c1 != c2) return (c1 > c2);
- i1++; i2++;
- /* 11 */
- c1 = block[i1]; c2 = block[i2];
- if (c1 != c2) return (c1 > c2);
- i1++; i2++;
- /* 12 */
- c1 = block[i1]; c2 = block[i2];
- if (c1 != c2) return (c1 > c2);
- i1++; i2++;
-
- k = nblock + 8;
-
- do {
- /* 1 */
- c1 = block[i1]; c2 = block[i2];
- if (c1 != c2) return (c1 > c2);
- s1 = quadrant[i1]; s2 = quadrant[i2];
- if (s1 != s2) return (s1 > s2);
- i1++; i2++;
- /* 2 */
- c1 = block[i1]; c2 = block[i2];
- if (c1 != c2) return (c1 > c2);
- s1 = quadrant[i1]; s2 = quadrant[i2];
- if (s1 != s2) return (s1 > s2);
- i1++; i2++;
- /* 3 */
- c1 = block[i1]; c2 = block[i2];
- if (c1 != c2) return (c1 > c2);
- s1 = quadrant[i1]; s2 = quadrant[i2];
- if (s1 != s2) return (s1 > s2);
- i1++; i2++;
- /* 4 */
- c1 = block[i1]; c2 = block[i2];
- if (c1 != c2) return (c1 > c2);
- s1 = quadrant[i1]; s2 = quadrant[i2];
- if (s1 != s2) return (s1 > s2);
- i1++; i2++;
- /* 5 */
- c1 = block[i1]; c2 = block[i2];
- if (c1 != c2) return (c1 > c2);
- s1 = quadrant[i1]; s2 = quadrant[i2];
- if (s1 != s2) return (s1 > s2);
- i1++; i2++;
- /* 6 */
- c1 = block[i1]; c2 = block[i2];
- if (c1 != c2) return (c1 > c2);
- s1 = quadrant[i1]; s2 = quadrant[i2];
- if (s1 != s2) return (s1 > s2);
- i1++; i2++;
- /* 7 */
- c1 = block[i1]; c2 = block[i2];
- if (c1 != c2) return (c1 > c2);
- s1 = quadrant[i1]; s2 = quadrant[i2];
- if (s1 != s2) return (s1 > s2);
- i1++; i2++;
- /* 8 */
- c1 = block[i1]; c2 = block[i2];
- if (c1 != c2) return (c1 > c2);
- s1 = quadrant[i1]; s2 = quadrant[i2];
- if (s1 != s2) return (s1 > s2);
- i1++; i2++;
-
- if (i1 >= nblock) i1 -= nblock;
- if (i2 >= nblock) i2 -= nblock;
-
- k -= 8;
- (*budget)--;
- }
- while (k >= 0);
-
- return False;
-}
-
-
-/*---------------------------------------------*/
-/*--
- Knuth's increments seem to work better
- than Incerpi-Sedgewick here. Possibly
- because the number of elems to sort is
- usually small, typically <= 20.
---*/
-static
-Int32 incs[14] = { 1, 4, 13, 40, 121, 364, 1093, 3280,
- 9841, 29524, 88573, 265720,
- 797161, 2391484 };
-
-static
-void mainSimpleSort ( UInt32* ptr,
- UChar* block,
- UInt16* quadrant,
- Int32 nblock,
- Int32 lo,
- Int32 hi,
- Int32 d,
- Int32* budget )
-{
- Int32 i, j, h, bigN, hp;
- UInt32 v;
-
- bigN = hi - lo + 1;
- if (bigN < 2) return;
-
- hp = 0;
- while (incs[hp] < bigN) hp++;
- hp--;
-
- for (; hp >= 0; hp--) {
- h = incs[hp];
-
- i = lo + h;
- while (True) {
-
- /*-- copy 1 --*/
- if (i > hi) break;
- v = ptr[i];
- j = i;
- while ( mainGtU (
- ptr[j-h]+d, v+d, block, quadrant, nblock, budget
- ) ) {
- ptr[j] = ptr[j-h];
- j = j - h;
- if (j <= (lo + h - 1)) break;
- }
- ptr[j] = v;
- i++;
-
- /*-- copy 2 --*/
- if (i > hi) break;
- v = ptr[i];
- j = i;
- while ( mainGtU (
- ptr[j-h]+d, v+d, block, quadrant, nblock, budget
- ) ) {
- ptr[j] = ptr[j-h];
- j = j - h;
- if (j <= (lo + h - 1)) break;
- }
- ptr[j] = v;
- i++;
-
- /*-- copy 3 --*/
- if (i > hi) break;
- v = ptr[i];
- j = i;
- while ( mainGtU (
- ptr[j-h]+d, v+d, block, quadrant, nblock, budget
- ) ) {
- ptr[j] = ptr[j-h];
- j = j - h;
- if (j <= (lo + h - 1)) break;
- }
- ptr[j] = v;
- i++;
-
- if (*budget < 0) return;
- }
- }
-}
-
-
-/*---------------------------------------------*/
-/*--
- The following is an implementation of
- an elegant 3-way quicksort for strings,
- described in a paper "Fast Algorithms for
- Sorting and Searching Strings", by Robert
- Sedgewick and Jon L. Bentley.
---*/
-
-#define mswap(zz1, zz2) \
- { Int32 zztmp = zz1; zz1 = zz2; zz2 = zztmp; }
-
-#define mvswap(zzp1, zzp2, zzn) \
-{ \
- Int32 yyp1 = (zzp1); \
- Int32 yyp2 = (zzp2); \
- Int32 yyn = (zzn); \
- while (yyn > 0) { \
- mswap(ptr[yyp1], ptr[yyp2]); \
- yyp1++; yyp2++; yyn--; \
- } \
-}
-
-static
-__inline__
-UChar mmed3 ( UChar a, UChar b, UChar c )
-{
- UChar t;
- if (a > b) { t = a; a = b; b = t; };
- if (b > c) {
- b = c;
- if (a > b) b = a;
- }
- return b;
-}
-
-#define mmin(a,b) ((a) < (b)) ? (a) : (b)
-
-#define mpush(lz,hz,dz) { stackLo[sp] = lz; \
- stackHi[sp] = hz; \
- stackD [sp] = dz; \
- sp++; }
-
-#define mpop(lz,hz,dz) { sp--; \
- lz = stackLo[sp]; \
- hz = stackHi[sp]; \
- dz = stackD [sp]; }
-
-
-#define mnextsize(az) (nextHi[az]-nextLo[az])
-
-#define mnextswap(az,bz) \
- { Int32 tz; \
- tz = nextLo[az]; nextLo[az] = nextLo[bz]; nextLo[bz] = tz; \
- tz = nextHi[az]; nextHi[az] = nextHi[bz]; nextHi[bz] = tz; \
- tz = nextD [az]; nextD [az] = nextD [bz]; nextD [bz] = tz; }
-
-
-#define MAIN_QSORT_SMALL_THRESH 20
-#define MAIN_QSORT_DEPTH_THRESH (BZ_N_RADIX + BZ_N_QSORT)
-#define MAIN_QSORT_STACK_SIZE 100
-
-static
-void mainQSort3 ( UInt32* ptr,
- UChar* block,
- UInt16* quadrant,
- Int32 nblock,
- Int32 loSt,
- Int32 hiSt,
- Int32 dSt,
- Int32* budget )
-{
- Int32 unLo, unHi, ltLo, gtHi, n, m, med;
- Int32 sp, lo, hi, d;
-
- Int32 stackLo[MAIN_QSORT_STACK_SIZE];
- Int32 stackHi[MAIN_QSORT_STACK_SIZE];
- Int32 stackD [MAIN_QSORT_STACK_SIZE];
-
- Int32 nextLo[3];
- Int32 nextHi[3];
- Int32 nextD [3];
-
- sp = 0;
- mpush ( loSt, hiSt, dSt );
-
- while (sp > 0) {
-
- AssertH ( sp < MAIN_QSORT_STACK_SIZE - 2, 1001 );
-
- mpop ( lo, hi, d );
- if (hi - lo < MAIN_QSORT_SMALL_THRESH ||
- d > MAIN_QSORT_DEPTH_THRESH) {
- mainSimpleSort ( ptr, block, quadrant, nblock, lo, hi, d, budget );
- if (*budget < 0) return;
- continue;
- }
-
- med = (Int32)
- mmed3 ( block[ptr[ lo ]+d],
- block[ptr[ hi ]+d],
- block[ptr[ (lo+hi)>>1 ]+d] );
-
- unLo = ltLo = lo;
- unHi = gtHi = hi;
-
- while (True) {
- while (True) {
- if (unLo > unHi) break;
- n = ((Int32)block[ptr[unLo]+d]) - med;
- if (n == 0) {
- mswap(ptr[unLo], ptr[ltLo]);
- ltLo++; unLo++; continue;
- };
- if (n > 0) break;
- unLo++;
- }
- while (True) {
- if (unLo > unHi) break;
- n = ((Int32)block[ptr[unHi]+d]) - med;
- if (n == 0) {
- mswap(ptr[unHi], ptr[gtHi]);
- gtHi--; unHi--; continue;
- };
- if (n < 0) break;
- unHi--;
- }
- if (unLo > unHi) break;
- mswap(ptr[unLo], ptr[unHi]); unLo++; unHi--;
- }
-
- AssertD ( unHi == unLo-1, "mainQSort3(2)" );
-
- if (gtHi < ltLo) {
- mpush(lo, hi, d+1 );
- continue;
- }
-
- n = mmin(ltLo-lo, unLo-ltLo); mvswap(lo, unLo-n, n);
- m = mmin(hi-gtHi, gtHi-unHi); mvswap(unLo, hi-m+1, m);
-
- n = lo + unLo - ltLo - 1;
- m = hi - (gtHi - unHi) + 1;
-
- nextLo[0] = lo; nextHi[0] = n; nextD[0] = d;
- nextLo[1] = m; nextHi[1] = hi; nextD[1] = d;
- nextLo[2] = n+1; nextHi[2] = m-1; nextD[2] = d+1;
-
- if (mnextsize(0) < mnextsize(1)) mnextswap(0,1);
- if (mnextsize(1) < mnextsize(2)) mnextswap(1,2);
- if (mnextsize(0) < mnextsize(1)) mnextswap(0,1);
-
- AssertD (mnextsize(0) >= mnextsize(1), "mainQSort3(8)" );
- AssertD (mnextsize(1) >= mnextsize(2), "mainQSort3(9)" );
-
- mpush (nextLo[0], nextHi[0], nextD[0]);
- mpush (nextLo[1], nextHi[1], nextD[1]);
- mpush (nextLo[2], nextHi[2], nextD[2]);
- }
-}
-
-#undef mswap
-#undef mvswap
-#undef mpush
-#undef mpop
-#undef mmin
-#undef mnextsize
-#undef mnextswap
-#undef MAIN_QSORT_SMALL_THRESH
-#undef MAIN_QSORT_DEPTH_THRESH
-#undef MAIN_QSORT_STACK_SIZE
-
-
-/*---------------------------------------------*/
-/* Pre:
- nblock > N_OVERSHOOT
- block32 exists for [0 .. nblock-1 +N_OVERSHOOT]
- ((UChar*)block32) [0 .. nblock-1] holds block
- ptr exists for [0 .. nblock-1]
-
- Post:
- ((UChar*)block32) [0 .. nblock-1] holds block
- All other areas of block32 destroyed
- ftab [0 .. 65536 ] destroyed
- ptr [0 .. nblock-1] holds sorted order
- if (*budget < 0), sorting was abandoned
-*/
-
-#define BIGFREQ(b) (ftab[((b)+1) << 8] - ftab[(b) << 8])
-#define SETMASK (1 << 21)
-#define CLEARMASK (~(SETMASK))
-
-static
-void mainSort ( UInt32* ptr,
- UChar* block,
- UInt16* quadrant,
- UInt32* ftab,
- Int32 nblock,
- Int32 verb,
- Int32* budget )
-{
- Int32 i, j, k, ss, sb;
- Int32 runningOrder[256];
- Bool bigDone[256];
- Int32 copyStart[256];
- Int32 copyEnd [256];
- UChar c1;
- Int32 numQSorted;
- UInt16 s;
- if (verb >= 4) VPrintf0 ( " main sort initialise ...\n" );
-
- /*-- set up the 2-byte frequency table --*/
- for (i = 65536; i >= 0; i--) ftab[i] = 0;
-
- j = block[0] << 8;
- i = nblock-1;
- for (; i >= 3; i -= 4) {
- quadrant[i] = 0;
- j = (j >> 8) | ( ((UInt16)block[i]) << 8);
- ftab[j]++;
- quadrant[i-1] = 0;
- j = (j >> 8) | ( ((UInt16)block[i-1]) << 8);
- ftab[j]++;
- quadrant[i-2] = 0;
- j = (j >> 8) | ( ((UInt16)block[i-2]) << 8);
- ftab[j]++;
- quadrant[i-3] = 0;
- j = (j >> 8) | ( ((UInt16)block[i-3]) << 8);
- ftab[j]++;
- }
- for (; i >= 0; i--) {
- quadrant[i] = 0;
- j = (j >> 8) | ( ((UInt16)block[i]) << 8);
- ftab[j]++;
- }
-
- /*-- (emphasises close relationship of block & quadrant) --*/
- for (i = 0; i < BZ_N_OVERSHOOT; i++) {
- block [nblock+i] = block[i];
- quadrant[nblock+i] = 0;
- }
-
- if (verb >= 4) VPrintf0 ( " bucket sorting ...\n" );
-
- /*-- Complete the initial radix sort --*/
- for (i = 1; i <= 65536; i++) ftab[i] += ftab[i-1];
-
- s = block[0] << 8;
- i = nblock-1;
- for (; i >= 3; i -= 4) {
- s = (s >> 8) | (block[i] << 8);
- j = ftab[s] -1;
- ftab[s] = j;
- ptr[j] = i;
- s = (s >> 8) | (block[i-1] << 8);
- j = ftab[s] -1;
- ftab[s] = j;
- ptr[j] = i-1;
- s = (s >> 8) | (block[i-2] << 8);
- j = ftab[s] -1;
- ftab[s] = j;
- ptr[j] = i-2;
- s = (s >> 8) | (block[i-3] << 8);
- j = ftab[s] -1;
- ftab[s] = j;
- ptr[j] = i-3;
- }
- for (; i >= 0; i--) {
- s = (s >> 8) | (block[i] << 8);
- j = ftab[s] -1;
- ftab[s] = j;
- ptr[j] = i;
- }
-
- /*--
- Now ftab contains the first loc of every small bucket.
- Calculate the running order, from smallest to largest
- big bucket.
- --*/
- for (i = 0; i <= 255; i++) {
- bigDone [i] = False;
- runningOrder[i] = i;
- }
-
- {
- Int32 vv;
- Int32 h = 1;
- do h = 3 * h + 1; while (h <= 256);
- do {
- h = h / 3;
- for (i = h; i <= 255; i++) {
- vv = runningOrder[i];
- j = i;
- while ( BIGFREQ(runningOrder[j-h]) > BIGFREQ(vv) ) {
- runningOrder[j] = runningOrder[j-h];
- j = j - h;
- if (j <= (h - 1)) goto zero;
- }
- zero:
- runningOrder[j] = vv;
- }
- } while (h != 1);
- }
-
- /*--
- The main sorting loop.
- --*/
-
- numQSorted = 0;
-
- for (i = 0; i <= 255; i++) {
-
- /*--
- Process big buckets, starting with the least full.
- Basically this is a 3-step process in which we call
- mainQSort3 to sort the small buckets [ss, j], but
- also make a big effort to avoid the calls if we can.
- --*/
- ss = runningOrder[i];
-
- /*--
- Step 1:
- Complete the big bucket [ss] by quicksorting
- any unsorted small buckets [ss, j], for j != ss.
- Hopefully previous pointer-scanning phases have already
- completed many of the small buckets [ss, j], so
- we don't have to sort them at all.
- --*/
- for (j = 0; j <= 255; j++) {
- if (j != ss) {
- sb = (ss << 8) + j;
- if ( ! (ftab[sb] & SETMASK) ) {
- Int32 lo = ftab[sb] & CLEARMASK;
- Int32 hi = (ftab[sb+1] & CLEARMASK) - 1;
- if (hi > lo) {
- if (verb >= 4)
- VPrintf4 ( " qsort [0x%x, 0x%x] "
- "done %d this %d\n",
- ss, j, numQSorted, hi - lo + 1 );
- mainQSort3 (
- ptr, block, quadrant, nblock,
- lo, hi, BZ_N_RADIX, budget
- );
- numQSorted += (hi - lo + 1);
- if (*budget < 0) return;
- }
- }
- ftab[sb] |= SETMASK;
- }
- }
-
- AssertH ( !bigDone[ss], 1006 );
-
- /*--
- Step 2:
- Now scan this big bucket [ss] so as to synthesise the
- sorted order for small buckets [t, ss] for all t,
- including, magically, the bucket [ss,ss] too.
- This will avoid doing Real Work in subsequent Step 1's.
- --*/
- {
- for (j = 0; j <= 255; j++) {
- copyStart[j] = ftab[(j << 8) + ss] & CLEARMASK;
- copyEnd [j] = (ftab[(j << 8) + ss + 1] & CLEARMASK) - 1;
- }
- for (j = ftab[ss << 8] & CLEARMASK; j < copyStart[ss]; j++) {
- k = ptr[j]-1; if (k < 0) k += nblock;
- c1 = block[k];
- if (!bigDone[c1])
- ptr[ copyStart[c1]++ ] = k;
- }
- for (j = (ftab[(ss+1) << 8] & CLEARMASK) - 1; j > copyEnd[ss]; j--) {
- k = ptr[j]-1; if (k < 0) k += nblock;
- c1 = block[k];
- if (!bigDone[c1])
- ptr[ copyEnd[c1]-- ] = k;
- }
- }
-
- AssertH ( (copyStart[ss]-1 == copyEnd[ss])
- ||
- /* Extremely rare case missing in bzip2-1.0.0 and 1.0.1.
- Necessity for this case is demonstrated by compressing
- a sequence of approximately 48.5 million of character
- 251; 1.0.0/1.0.1 will then die here. */
- (copyStart[ss] == 0 && copyEnd[ss] == nblock-1),
- 1007 )
-
- for (j = 0; j <= 255; j++) ftab[(j << 8) + ss] |= SETMASK;
-
- /*--
- Step 3:
- The [ss] big bucket is now done. Record this fact,
- and update the quadrant descriptors. Remember to
- update quadrants in the overshoot area too, if
- necessary. The "if (i < 255)" test merely skips
- this updating for the last bucket processed, since
- updating for the last bucket is pointless.
-
- The quadrant array provides a way to incrementally
- cache sort orderings, as they appear, so as to
- make subsequent comparisons in fullGtU() complete
- faster. For repetitive blocks this makes a big
- difference (but not big enough to be able to avoid
- the fallback sorting mechanism, exponential radix sort).
-
- The precise meaning is: at all times:
-
- for 0 <= i < nblock and 0 <= j <= nblock
-
- if block[i] != block[j],
-
- then the relative values of quadrant[i] and
- quadrant[j] are meaningless.
-
- else {
- if quadrant[i] < quadrant[j]
- then the string starting at i lexicographically
- precedes the string starting at j
-
- else if quadrant[i] > quadrant[j]
- then the string starting at j lexicographically
- precedes the string starting at i
-
- else
- the relative ordering of the strings starting
- at i and j has not yet been determined.
- }
- --*/
- bigDone[ss] = True;
-
- if (i < 255) {
- Int32 bbStart = ftab[ss << 8] & CLEARMASK;
- Int32 bbSize = (ftab[(ss+1) << 8] & CLEARMASK) - bbStart;
- Int32 shifts = 0;
-
- while ((bbSize >> shifts) > 65534) shifts++;
-
- for (j = bbSize-1; j >= 0; j--) {
- Int32 a2update = ptr[bbStart + j];
- UInt16 qVal = (UInt16)(j >> shifts);
- quadrant[a2update] = qVal;
- if (a2update < BZ_N_OVERSHOOT)
- quadrant[a2update + nblock] = qVal;
- }
- AssertH ( ((bbSize-1) >> shifts) <= 65535, 1002 );
- }
-
- }
-
- if (verb >= 4)
- VPrintf3 ( " %d pointers, %d sorted, %d scanned\n",
- nblock, numQSorted, nblock - numQSorted );
-}
-
-#undef BIGFREQ
-#undef SETMASK
-#undef CLEARMASK
-
-
-/*---------------------------------------------*/
-/* Pre:
- nblock > 0
- arr2 exists for [0 .. nblock-1 +N_OVERSHOOT]
- ((UChar*)arr2) [0 .. nblock-1] holds block
- arr1 exists for [0 .. nblock-1]
-
- Post:
- ((UChar*)arr2) [0 .. nblock-1] holds block
- All other areas of block destroyed
- ftab [ 0 .. 65536 ] destroyed
- arr1 [0 .. nblock-1] holds sorted order
-*/
-void BZ2_blockSort ( EState* s )
-{
- UInt32* ptr = s->ptr;
- UChar* block = s->block;
- UInt32* ftab = s->ftab;
- Int32 nblock = s->nblock;
- Int32 verb = s->verbosity;
- Int32 wfact = s->workFactor;
- UInt16* quadrant;
- Int32 budget;
- Int32 budgetInit;
- Int32 i;
-
- if (nblock < 10000) {
- fallbackSort ( s->arr1, s->arr2, ftab, nblock, verb );
- } else {
- /* Calculate the location for quadrant, remembering to get
- the alignment right. Assumes that &(block[0]) is at least
- 2-byte aligned -- this should be ok since block is really
- the first section of arr2.
- */
- i = nblock+BZ_N_OVERSHOOT;
- if (i & 1) i++;
- quadrant = (UInt16*)(&(block[i]));
-
- /* (wfact-1) / 3 puts the default-factor-30
- transition point at very roughly the same place as
- with v0.1 and v0.9.0.
- Not that it particularly matters any more, since the
- resulting compressed stream is now the same regardless
- of whether or not we use the main sort or fallback sort.
- */
- if (wfact < 1 ) wfact = 1;
- if (wfact > 100) wfact = 100;
- budgetInit = nblock * ((wfact-1) / 3);
- budget = budgetInit;
-
- mainSort ( ptr, block, quadrant, ftab, nblock, verb, &budget );
- if (verb >= 3)
- VPrintf3 ( " %d work, %d block, ratio %5.2f\n",
- budgetInit - budget,
- nblock,
- (float)(budgetInit - budget) /
- (float)(nblock==0 ? 1 : nblock) );
- if (budget < 0) {
- if (verb >= 2)
- VPrintf0 ( " too repetitive; using fallback"
- " sorting algorithm\n" );
- fallbackSort ( s->arr1, s->arr2, ftab, nblock, verb );
- }
- }
-
- s->origPtr = -1;
- for (i = 0; i < s->nblock; i++)
- if (ptr[i] == 0)
- { s->origPtr = i; break; };
-
- AssertH( s->origPtr != -1, 1003 );
-}
-
-
-/*-------------------------------------------------------------*/
-/*--- end blocksort.c ---*/
-/*-------------------------------------------------------------*/
+++ /dev/null
-
-/*-----------------------------------------------------------*/
-/*--- A block-sorting, lossless compressor bzip2.c ---*/
-/*-----------------------------------------------------------*/
-
-/* ------------------------------------------------------------------
- This file is part of bzip2/libbzip2, a program and library for
- lossless, block-sorting data compression.
-
- bzip2/libbzip2 version 1.0.6 of 6 September 2010
- Copyright (C) 1996-2010 Julian Seward <jseward@bzip.org>
-
- Please read the WARNING, DISCLAIMER and PATENTS sections in the
- README file.
-
- This program is released under the terms of the license contained
- in the file LICENSE.
- ------------------------------------------------------------------ */
-
-
-/* Place a 1 beside your platform, and 0 elsewhere.
- Generic 32-bit Unix.
- Also works on 64-bit Unix boxes.
- This is the default.
-*/
-#define BZ_UNIX 1
-
-/*--
- Win32, as seen by Jacob Navia's excellent
- port of (Chris Fraser & David Hanson)'s excellent
- lcc compiler. Or with MS Visual C.
- This is selected automatically if compiled by a compiler which
- defines _WIN32, not including the Cygwin GCC.
---*/
-#define BZ_LCCWIN32 0
-
-#if defined(_WIN32) && !defined(__CYGWIN__)
-#undef BZ_LCCWIN32
-#define BZ_LCCWIN32 1
-#undef BZ_UNIX
-#define BZ_UNIX 0
-#endif
-
-
-/*---------------------------------------------*/
-/*--
- Some stuff for all platforms.
---*/
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <signal.h>
-#include <math.h>
-#include <errno.h>
-#include <ctype.h>
-#include "bzlib.h"
-
-#define ERROR_IF_EOF(i) { if ((i) == EOF) ioError(); }
-#define ERROR_IF_NOT_ZERO(i) { if ((i) != 0) ioError(); }
-#define ERROR_IF_MINUS_ONE(i) { if ((i) == (-1)) ioError(); }
-
-
-/*---------------------------------------------*/
-/*--
- Platform-specific stuff.
---*/
-
-#if BZ_UNIX
-# include <fcntl.h>
-# include <sys/types.h>
-# include <utime.h>
-# include <unistd.h>
-# include <sys/stat.h>
-# include <sys/times.h>
-
-# define PATH_SEP '/'
-# define MY_LSTAT lstat
-# define MY_STAT stat
-# define MY_S_ISREG S_ISREG
-# define MY_S_ISDIR S_ISDIR
-
-# define APPEND_FILESPEC(root, name) \
- root=snocString((root), (name))
-
-# define APPEND_FLAG(root, name) \
- root=snocString((root), (name))
-
-# define SET_BINARY_MODE(fd) /**/
-
-# ifdef __GNUC__
-# define NORETURN __attribute__ ((noreturn))
-# else
-# define NORETURN /**/
-# endif
-
-# ifdef __DJGPP__
-# include <io.h>
-# include <fcntl.h>
-# undef MY_LSTAT
-# undef MY_STAT
-# define MY_LSTAT stat
-# define MY_STAT stat
-# undef SET_BINARY_MODE
-# define SET_BINARY_MODE(fd) \
- do { \
- int retVal = setmode ( fileno ( fd ), \
- O_BINARY ); \
- ERROR_IF_MINUS_ONE ( retVal ); \
- } while ( 0 )
-# endif
-
-# ifdef __CYGWIN__
-# include <io.h>
-# include <fcntl.h>
-# undef SET_BINARY_MODE
-# define SET_BINARY_MODE(fd) \
- do { \
- int retVal = setmode ( fileno ( fd ), \
- O_BINARY ); \
- ERROR_IF_MINUS_ONE ( retVal ); \
- } while ( 0 )
-# endif
-#endif /* BZ_UNIX */
-
-
-
-#if BZ_LCCWIN32
-# include <io.h>
-# include <fcntl.h>
-# include <sys\stat.h>
-
-# define NORETURN /**/
-# define PATH_SEP '\\'
-# define MY_LSTAT _stat
-# define MY_STAT _stat
-# define MY_S_ISREG(x) ((x) & _S_IFREG)
-# define MY_S_ISDIR(x) ((x) & _S_IFDIR)
-
-# define APPEND_FLAG(root, name) \
- root=snocString((root), (name))
-
-# define APPEND_FILESPEC(root, name) \
- root = snocString ((root), (name))
-
-# define SET_BINARY_MODE(fd) \
- do { \
- int retVal = setmode ( fileno ( fd ), \
- O_BINARY ); \
- ERROR_IF_MINUS_ONE ( retVal ); \
- } while ( 0 )
-
-#endif /* BZ_LCCWIN32 */
-
-
-/*---------------------------------------------*/
-/*--
- Some more stuff for all platforms :-)
---*/
-
-typedef char Char;
-typedef unsigned char Bool;
-typedef unsigned char UChar;
-typedef int Int32;
-typedef unsigned int UInt32;
-typedef short Int16;
-typedef unsigned short UInt16;
-
-#define True ((Bool)1)
-#define False ((Bool)0)
-
-/*--
- IntNative is your platform's `native' int size.
- Only here to avoid probs with 64-bit platforms.
---*/
-typedef int IntNative;
-
-
-/*---------------------------------------------------*/
-/*--- Misc (file handling) data decls ---*/
-/*---------------------------------------------------*/
-
-Int32 verbosity;
-Bool keepInputFiles, smallMode, deleteOutputOnInterrupt;
-Bool forceOverwrite, testFailsExist, unzFailsExist, noisy;
-Int32 numFileNames, numFilesProcessed, blockSize100k;
-Int32 exitValue;
-
-/*-- source modes; F==file, I==stdin, O==stdout --*/
-#define SM_I2O 1
-#define SM_F2O 2
-#define SM_F2F 3
-
-/*-- operation modes --*/
-#define OM_Z 1
-#define OM_UNZ 2
-#define OM_TEST 3
-
-Int32 opMode;
-Int32 srcMode;
-
-#define FILE_NAME_LEN 1034
-
-Int32 longestFileName;
-Char inName [FILE_NAME_LEN];
-Char outName[FILE_NAME_LEN];
-Char tmpName[FILE_NAME_LEN];
-Char *progName;
-Char progNameReally[FILE_NAME_LEN];
-FILE *outputHandleJustInCase;
-Int32 workFactor;
-
-static void panic ( const Char* ) NORETURN;
-static void ioError ( void ) NORETURN;
-static void outOfMemory ( void ) NORETURN;
-static void configError ( void ) NORETURN;
-static void crcError ( void ) NORETURN;
-static void cleanUpAndFail ( Int32 ) NORETURN;
-static void compressedStreamEOF ( void ) NORETURN;
-
-static void copyFileName ( Char*, Char* );
-static void* myMalloc ( Int32 );
-static void applySavedFileAttrToOutputFile ( IntNative fd );
-
-
-
-/*---------------------------------------------------*/
-/*--- An implementation of 64-bit ints. Sigh. ---*/
-/*--- Roll on widespread deployment of ANSI C9X ! ---*/
-/*---------------------------------------------------*/
-
-typedef
- struct { UChar b[8]; }
- UInt64;
-
-
-static
-void uInt64_from_UInt32s ( UInt64* n, UInt32 lo32, UInt32 hi32 )
-{
- n->b[7] = (UChar)((hi32 >> 24) & 0xFF);
- n->b[6] = (UChar)((hi32 >> 16) & 0xFF);
- n->b[5] = (UChar)((hi32 >> 8) & 0xFF);
- n->b[4] = (UChar) (hi32 & 0xFF);
- n->b[3] = (UChar)((lo32 >> 24) & 0xFF);
- n->b[2] = (UChar)((lo32 >> 16) & 0xFF);
- n->b[1] = (UChar)((lo32 >> 8) & 0xFF);
- n->b[0] = (UChar) (lo32 & 0xFF);
-}
-
-
-static
-double uInt64_to_double ( UInt64* n )
-{
- Int32 i;
- double base = 1.0;
- double sum = 0.0;
- for (i = 0; i < 8; i++) {
- sum += base * (double)(n->b[i]);
- base *= 256.0;
- }
- return sum;
-}
-
-
-static
-Bool uInt64_isZero ( UInt64* n )
-{
- Int32 i;
- for (i = 0; i < 8; i++)
- if (n->b[i] != 0) return 0;
- return 1;
-}
-
-
-/* Divide *n by 10, and return the remainder. */
-static
-Int32 uInt64_qrm10 ( UInt64* n )
-{
- UInt32 rem, tmp;
- Int32 i;
- rem = 0;
- for (i = 7; i >= 0; i--) {
- tmp = rem * 256 + n->b[i];
- n->b[i] = tmp / 10;
- rem = tmp % 10;
- }
- return rem;
-}
-
-
-/* ... and the Whole Entire Point of all this UInt64 stuff is
- so that we can supply the following function.
-*/
-static
-void uInt64_toAscii ( char* outbuf, UInt64* n )
-{
- Int32 i, q;
- UChar buf[32];
- Int32 nBuf = 0;
- UInt64 n_copy = *n;
- do {
- q = uInt64_qrm10 ( &n_copy );
- buf[nBuf] = q + '0';
- nBuf++;
- } while (!uInt64_isZero(&n_copy));
- outbuf[nBuf] = 0;
- for (i = 0; i < nBuf; i++)
- outbuf[i] = buf[nBuf-i-1];
-}
-
-
-/*---------------------------------------------------*/
-/*--- Processing of complete files and streams ---*/
-/*---------------------------------------------------*/
-
-/*---------------------------------------------*/
-static
-Bool myfeof ( FILE* f )
-{
- Int32 c = fgetc ( f );
- if (c == EOF) return True;
- ungetc ( c, f );
- return False;
-}
-
-
-/*---------------------------------------------*/
-static
-void compressStream ( FILE *stream, FILE *zStream )
-{
- BZFILE* bzf = NULL;
- UChar ibuf[5000];
- Int32 nIbuf;
- UInt32 nbytes_in_lo32, nbytes_in_hi32;
- UInt32 nbytes_out_lo32, nbytes_out_hi32;
- Int32 bzerr, bzerr_dummy, ret;
-
- SET_BINARY_MODE(stream);
- SET_BINARY_MODE(zStream);
-
- if (ferror(stream)) goto errhandler_io;
- if (ferror(zStream)) goto errhandler_io;
-
- bzf = BZ2_bzWriteOpen ( &bzerr, zStream,
- blockSize100k, verbosity, workFactor );
- if (bzerr != BZ_OK) goto errhandler;
-
- if (verbosity >= 2) fprintf ( stderr, "\n" );
-
- while (True) {
-
- if (myfeof(stream)) break;
- nIbuf = fread ( ibuf, sizeof(UChar), 5000, stream );
- if (ferror(stream)) goto errhandler_io;
- if (nIbuf > 0) BZ2_bzWrite ( &bzerr, bzf, (void*)ibuf, nIbuf );
- if (bzerr != BZ_OK) goto errhandler;
-
- }
-
- BZ2_bzWriteClose64 ( &bzerr, bzf, 0,
- &nbytes_in_lo32, &nbytes_in_hi32,
- &nbytes_out_lo32, &nbytes_out_hi32 );
- if (bzerr != BZ_OK) goto errhandler;
-
- if (ferror(zStream)) goto errhandler_io;
- ret = fflush ( zStream );
- if (ret == EOF) goto errhandler_io;
- if (zStream != stdout) {
- Int32 fd = fileno ( zStream );
- if (fd < 0) goto errhandler_io;
- applySavedFileAttrToOutputFile ( fd );
- ret = fclose ( zStream );
- outputHandleJustInCase = NULL;
- if (ret == EOF) goto errhandler_io;
- }
- outputHandleJustInCase = NULL;
- if (ferror(stream)) goto errhandler_io;
- ret = fclose ( stream );
- if (ret == EOF) goto errhandler_io;
-
- if (verbosity >= 1) {
- if (nbytes_in_lo32 == 0 && nbytes_in_hi32 == 0) {
- fprintf ( stderr, " no data compressed.\n");
- } else {
- Char buf_nin[32], buf_nout[32];
- UInt64 nbytes_in, nbytes_out;
- double nbytes_in_d, nbytes_out_d;
- uInt64_from_UInt32s ( &nbytes_in,
- nbytes_in_lo32, nbytes_in_hi32 );
- uInt64_from_UInt32s ( &nbytes_out,
- nbytes_out_lo32, nbytes_out_hi32 );
- nbytes_in_d = uInt64_to_double ( &nbytes_in );
- nbytes_out_d = uInt64_to_double ( &nbytes_out );
- uInt64_toAscii ( buf_nin, &nbytes_in );
- uInt64_toAscii ( buf_nout, &nbytes_out );
- fprintf ( stderr, "%6.3f:1, %6.3f bits/byte, "
- "%5.2f%% saved, %s in, %s out.\n",
- nbytes_in_d / nbytes_out_d,
- (8.0 * nbytes_out_d) / nbytes_in_d,
- 100.0 * (1.0 - nbytes_out_d / nbytes_in_d),
- buf_nin,
- buf_nout
- );
- }
- }
-
- return;
-
- errhandler:
- BZ2_bzWriteClose64 ( &bzerr_dummy, bzf, 1,
- &nbytes_in_lo32, &nbytes_in_hi32,
- &nbytes_out_lo32, &nbytes_out_hi32 );
- switch (bzerr) {
- case BZ_CONFIG_ERROR:
- configError(); break;
- case BZ_MEM_ERROR:
- outOfMemory (); break;
- case BZ_IO_ERROR:
- errhandler_io:
- ioError(); break;
- default:
- panic ( "compress:unexpected error" );
- }
-
- panic ( "compress:end" );
- /*notreached*/
-}
-
-
-
-/*---------------------------------------------*/
-static
-Bool uncompressStream ( FILE *zStream, FILE *stream )
-{
- BZFILE* bzf = NULL;
- Int32 bzerr, bzerr_dummy, ret, nread, streamNo, i;
- UChar obuf[5000];
- UChar unused[BZ_MAX_UNUSED];
- Int32 nUnused;
- void* unusedTmpV;
- UChar* unusedTmp;
-
- nUnused = 0;
- streamNo = 0;
-
- SET_BINARY_MODE(stream);
- SET_BINARY_MODE(zStream);
-
- if (ferror(stream)) goto errhandler_io;
- if (ferror(zStream)) goto errhandler_io;
-
- while (True) {
-
- bzf = BZ2_bzReadOpen (
- &bzerr, zStream, verbosity,
- (int)smallMode, unused, nUnused
- );
- if (bzf == NULL || bzerr != BZ_OK) goto errhandler;
- streamNo++;
-
- while (bzerr == BZ_OK) {
- nread = BZ2_bzRead ( &bzerr, bzf, obuf, 5000 );
- if (bzerr == BZ_DATA_ERROR_MAGIC) goto trycat;
- if ((bzerr == BZ_OK || bzerr == BZ_STREAM_END) && nread > 0)
- fwrite ( obuf, sizeof(UChar), nread, stream );
- if (ferror(stream)) goto errhandler_io;
- }
- if (bzerr != BZ_STREAM_END) goto errhandler;
-
- BZ2_bzReadGetUnused ( &bzerr, bzf, &unusedTmpV, &nUnused );
- if (bzerr != BZ_OK) panic ( "decompress:bzReadGetUnused" );
-
- unusedTmp = (UChar*)unusedTmpV;
- for (i = 0; i < nUnused; i++) unused[i] = unusedTmp[i];
-
- BZ2_bzReadClose ( &bzerr, bzf );
- if (bzerr != BZ_OK) panic ( "decompress:bzReadGetUnused" );
-
- if (nUnused == 0 && myfeof(zStream)) break;
- }
-
- closeok:
- if (ferror(zStream)) goto errhandler_io;
- if (stream != stdout) {
- Int32 fd = fileno ( stream );
- if (fd < 0) goto errhandler_io;
- applySavedFileAttrToOutputFile ( fd );
- }
- ret = fclose ( zStream );
- if (ret == EOF) goto errhandler_io;
-
- if (ferror(stream)) goto errhandler_io;
- ret = fflush ( stream );
- if (ret != 0) goto errhandler_io;
- if (stream != stdout) {
- ret = fclose ( stream );
- outputHandleJustInCase = NULL;
- if (ret == EOF) goto errhandler_io;
- }
- outputHandleJustInCase = NULL;
- if (verbosity >= 2) fprintf ( stderr, "\n " );
- return True;
-
- trycat:
- if (forceOverwrite) {
- rewind(zStream);
- while (True) {
- if (myfeof(zStream)) break;
- nread = fread ( obuf, sizeof(UChar), 5000, zStream );
- if (ferror(zStream)) goto errhandler_io;
- if (nread > 0) fwrite ( obuf, sizeof(UChar), nread, stream );
- if (ferror(stream)) goto errhandler_io;
- }
- goto closeok;
- }
-
- errhandler:
- BZ2_bzReadClose ( &bzerr_dummy, bzf );
- switch (bzerr) {
- case BZ_CONFIG_ERROR:
- configError(); break;
- case BZ_IO_ERROR:
- errhandler_io:
- ioError(); break;
- case BZ_DATA_ERROR:
- crcError();
- case BZ_MEM_ERROR:
- outOfMemory();
- case BZ_UNEXPECTED_EOF:
- compressedStreamEOF();
- case BZ_DATA_ERROR_MAGIC:
- if (zStream != stdin) fclose(zStream);
- if (stream != stdout) fclose(stream);
- if (streamNo == 1) {
- return False;
- } else {
- if (noisy)
- fprintf ( stderr,
- "\n%s: %s: trailing garbage after EOF ignored\n",
- progName, inName );
- return True;
- }
- default:
- panic ( "decompress:unexpected error" );
- }
-
- panic ( "decompress:end" );
- return True; /*notreached*/
-}
-
-
-/*---------------------------------------------*/
-static
-Bool testStream ( FILE *zStream )
-{
- BZFILE* bzf = NULL;
- Int32 bzerr, bzerr_dummy, ret, nread, streamNo, i;
- UChar obuf[5000];
- UChar unused[BZ_MAX_UNUSED];
- Int32 nUnused;
- void* unusedTmpV;
- UChar* unusedTmp;
-
- nUnused = 0;
- streamNo = 0;
-
- SET_BINARY_MODE(zStream);
- if (ferror(zStream)) goto errhandler_io;
-
- while (True) {
-
- bzf = BZ2_bzReadOpen (
- &bzerr, zStream, verbosity,
- (int)smallMode, unused, nUnused
- );
- if (bzf == NULL || bzerr != BZ_OK) goto errhandler;
- streamNo++;
-
- while (bzerr == BZ_OK) {
- nread = BZ2_bzRead ( &bzerr, bzf, obuf, 5000 );
- if (bzerr == BZ_DATA_ERROR_MAGIC) goto errhandler;
- }
- if (bzerr != BZ_STREAM_END) goto errhandler;
-
- BZ2_bzReadGetUnused ( &bzerr, bzf, &unusedTmpV, &nUnused );
- if (bzerr != BZ_OK) panic ( "test:bzReadGetUnused" );
-
- unusedTmp = (UChar*)unusedTmpV;
- for (i = 0; i < nUnused; i++) unused[i] = unusedTmp[i];
-
- BZ2_bzReadClose ( &bzerr, bzf );
- if (bzerr != BZ_OK) panic ( "test:bzReadGetUnused" );
- if (nUnused == 0 && myfeof(zStream)) break;
-
- }
-
- if (ferror(zStream)) goto errhandler_io;
- ret = fclose ( zStream );
- if (ret == EOF) goto errhandler_io;
-
- if (verbosity >= 2) fprintf ( stderr, "\n " );
- return True;
-
- errhandler:
- BZ2_bzReadClose ( &bzerr_dummy, bzf );
- if (verbosity == 0)
- fprintf ( stderr, "%s: %s: ", progName, inName );
- switch (bzerr) {
- case BZ_CONFIG_ERROR:
- configError(); break;
- case BZ_IO_ERROR:
- errhandler_io:
- ioError(); break;
- case BZ_DATA_ERROR:
- fprintf ( stderr,
- "data integrity (CRC) error in data\n" );
- return False;
- case BZ_MEM_ERROR:
- outOfMemory();
- case BZ_UNEXPECTED_EOF:
- fprintf ( stderr,
- "file ends unexpectedly\n" );
- return False;
- case BZ_DATA_ERROR_MAGIC:
- if (zStream != stdin) fclose(zStream);
- if (streamNo == 1) {
- fprintf ( stderr,
- "bad magic number (file not created by bzip2)\n" );
- return False;
- } else {
- if (noisy)
- fprintf ( stderr,
- "trailing garbage after EOF ignored\n" );
- return True;
- }
- default:
- panic ( "test:unexpected error" );
- }
-
- panic ( "test:end" );
- return True; /*notreached*/
-}
-
-
-/*---------------------------------------------------*/
-/*--- Error [non-] handling grunge ---*/
-/*---------------------------------------------------*/
-
-/*---------------------------------------------*/
-static
-void setExit ( Int32 v )
-{
- if (v > exitValue) exitValue = v;
-}
-
-
-/*---------------------------------------------*/
-static
-void cadvise ( void )
-{
- if (noisy)
- fprintf (
- stderr,
- "\nIt is possible that the compressed file(s) have become corrupted.\n"
- "You can use the -tvv option to test integrity of such files.\n\n"
- "You can use the `bzip2recover' program to attempt to recover\n"
- "data from undamaged sections of corrupted files.\n\n"
- );
-}
-
-
-/*---------------------------------------------*/
-static
-void showFileNames ( void )
-{
- if (noisy)
- fprintf (
- stderr,
- "\tInput file = %s, output file = %s\n",
- inName, outName
- );
-}
-
-
-/*---------------------------------------------*/
-static
-void cleanUpAndFail ( Int32 ec )
-{
- IntNative retVal;
- struct MY_STAT statBuf;
-
- if ( srcMode == SM_F2F
- && opMode != OM_TEST
- && deleteOutputOnInterrupt ) {
-
- /* Check whether input file still exists. Delete output file
- only if input exists to avoid loss of data. Joerg Prante, 5
- January 2002. (JRS 06-Jan-2002: other changes in 1.0.2 mean
- this is less likely to happen. But to be ultra-paranoid, we
- do the check anyway.) */
- retVal = MY_STAT ( inName, &statBuf );
- if (retVal == 0) {
- if (noisy)
- fprintf ( stderr,
- "%s: Deleting output file %s, if it exists.\n",
- progName, outName );
- if (outputHandleJustInCase != NULL)
- fclose ( outputHandleJustInCase );
- retVal = remove ( outName );
- if (retVal != 0)
- fprintf ( stderr,
- "%s: WARNING: deletion of output file "
- "(apparently) failed.\n",
- progName );
- } else {
- fprintf ( stderr,
- "%s: WARNING: deletion of output file suppressed\n",
- progName );
- fprintf ( stderr,
- "%s: since input file no longer exists. Output file\n",
- progName );
- fprintf ( stderr,
- "%s: `%s' may be incomplete.\n",
- progName, outName );
- fprintf ( stderr,
- "%s: I suggest doing an integrity test (bzip2 -tv)"
- " of it.\n",
- progName );
- }
- }
-
- if (noisy && numFileNames > 0 && numFilesProcessed < numFileNames) {
- fprintf ( stderr,
- "%s: WARNING: some files have not been processed:\n"
- "%s: %d specified on command line, %d not processed yet.\n\n",
- progName, progName,
- numFileNames, numFileNames - numFilesProcessed );
- }
- setExit(ec);
- exit(exitValue);
-}
-
-
-/*---------------------------------------------*/
-static
-void panic ( const Char* s )
-{
- fprintf ( stderr,
- "\n%s: PANIC -- internal consistency error:\n"
- "\t%s\n"
- "\tThis is a BUG. Please report it to me at:\n"
- "\tjseward@bzip.org\n",
- progName, s );
- showFileNames();
- cleanUpAndFail( 3 );
-}
-
-
-/*---------------------------------------------*/
-static
-void crcError ( void )
-{
- fprintf ( stderr,
- "\n%s: Data integrity error when decompressing.\n",
- progName );
- showFileNames();
- cadvise();
- cleanUpAndFail( 2 );
-}
-
-
-/*---------------------------------------------*/
-static
-void compressedStreamEOF ( void )
-{
- if (noisy) {
- fprintf ( stderr,
- "\n%s: Compressed file ends unexpectedly;\n\t"
- "perhaps it is corrupted? *Possible* reason follows.\n",
- progName );
- perror ( progName );
- showFileNames();
- cadvise();
- }
- cleanUpAndFail( 2 );
-}
-
-
-/*---------------------------------------------*/
-static
-void ioError ( void )
-{
- fprintf ( stderr,
- "\n%s: I/O or other error, bailing out. "
- "Possible reason follows.\n",
- progName );
- perror ( progName );
- showFileNames();
- cleanUpAndFail( 1 );
-}
-
-
-/*---------------------------------------------*/
-static
-void mySignalCatcher ( IntNative n )
-{
- fprintf ( stderr,
- "\n%s: Control-C or similar caught, quitting.\n",
- progName );
- cleanUpAndFail(1);
-}
-
-
-/*---------------------------------------------*/
-static
-void mySIGSEGVorSIGBUScatcher ( IntNative n )
-{
- if (opMode == OM_Z)
- fprintf (
- stderr,
- "\n%s: Caught a SIGSEGV or SIGBUS whilst compressing.\n"
- "\n"
- " Possible causes are (most likely first):\n"
- " (1) This computer has unreliable memory or cache hardware\n"
- " (a surprisingly common problem; try a different machine.)\n"
- " (2) A bug in the compiler used to create this executable\n"
- " (unlikely, if you didn't compile bzip2 yourself.)\n"
- " (3) A real bug in bzip2 -- I hope this should never be the case.\n"
- " The user's manual, Section 4.3, has more info on (1) and (2).\n"
- " \n"
- " If you suspect this is a bug in bzip2, or are unsure about (1)\n"
- " or (2), feel free to report it to me at: jseward@bzip.org.\n"
- " Section 4.3 of the user's manual describes the info a useful\n"
- " bug report should have. If the manual is available on your\n"
- " system, please try and read it before mailing me. If you don't\n"
- " have the manual or can't be bothered to read it, mail me anyway.\n"
- "\n",
- progName );
- else
- fprintf (
- stderr,
- "\n%s: Caught a SIGSEGV or SIGBUS whilst decompressing.\n"
- "\n"
- " Possible causes are (most likely first):\n"
- " (1) The compressed data is corrupted, and bzip2's usual checks\n"
- " failed to detect this. Try bzip2 -tvv my_file.bz2.\n"
- " (2) This computer has unreliable memory or cache hardware\n"
- " (a surprisingly common problem; try a different machine.)\n"
- " (3) A bug in the compiler used to create this executable\n"
- " (unlikely, if you didn't compile bzip2 yourself.)\n"
- " (4) A real bug in bzip2 -- I hope this should never be the case.\n"
- " The user's manual, Section 4.3, has more info on (2) and (3).\n"
- " \n"
- " If you suspect this is a bug in bzip2, or are unsure about (2)\n"
- " or (3), feel free to report it to me at: jseward@bzip.org.\n"
- " Section 4.3 of the user's manual describes the info a useful\n"
- " bug report should have. If the manual is available on your\n"
- " system, please try and read it before mailing me. If you don't\n"
- " have the manual or can't be bothered to read it, mail me anyway.\n"
- "\n",
- progName );
-
- showFileNames();
- if (opMode == OM_Z)
- cleanUpAndFail( 3 ); else
- { cadvise(); cleanUpAndFail( 2 ); }
-}
-
-
-/*---------------------------------------------*/
-static
-void outOfMemory ( void )
-{
- fprintf ( stderr,
- "\n%s: couldn't allocate enough memory\n",
- progName );
- showFileNames();
- cleanUpAndFail(1);
-}
-
-
-/*---------------------------------------------*/
-static
-void configError ( void )
-{
- fprintf ( stderr,
- "bzip2: I'm not configured correctly for this platform!\n"
- "\tI require Int32, Int16 and Char to have sizes\n"
- "\tof 4, 2 and 1 bytes to run properly, and they don't.\n"
- "\tProbably you can fix this by defining them correctly,\n"
- "\tand recompiling. Bye!\n" );
- setExit(3);
- exit(exitValue);
-}
-
-
-/*---------------------------------------------------*/
-/*--- The main driver machinery ---*/
-/*---------------------------------------------------*/
-
-/* All rather crufty. The main problem is that input files
- are stat()d multiple times before use. This should be
- cleaned up.
-*/
-
-/*---------------------------------------------*/
-static
-void pad ( Char *s )
-{
- Int32 i;
- if ( (Int32)strlen(s) >= longestFileName ) return;
- for (i = 1; i <= longestFileName - (Int32)strlen(s); i++)
- fprintf ( stderr, " " );
-}
-
-
-/*---------------------------------------------*/
-static
-void copyFileName ( Char* to, Char* from )
-{
- if ( strlen(from) > FILE_NAME_LEN-10 ) {
- fprintf (
- stderr,
- "bzip2: file name\n`%s'\n"
- "is suspiciously (more than %d chars) long.\n"
- "Try using a reasonable file name instead. Sorry! :-)\n",
- from, FILE_NAME_LEN-10
- );
- setExit(1);
- exit(exitValue);
- }
-
- strncpy(to,from,FILE_NAME_LEN-10);
- to[FILE_NAME_LEN-10]='\0';
-}
-
-
-/*---------------------------------------------*/
-static
-Bool fileExists ( Char* name )
-{
- FILE *tmp = fopen ( name, "rb" );
- Bool exists = (tmp != NULL);
- if (tmp != NULL) fclose ( tmp );
- return exists;
-}
-
-
-/*---------------------------------------------*/
-/* Open an output file safely with O_EXCL and good permissions.
- This avoids a race condition in versions < 1.0.2, in which
- the file was first opened and then had its interim permissions
- set safely. We instead use open() to create the file with
- the interim permissions required. (--- --- rw-).
-
- For non-Unix platforms, if we are not worrying about
- security issues, simple this simply behaves like fopen.
-*/
-static
-FILE* fopen_output_safely ( Char* name, const char* mode )
-{
-# if BZ_UNIX
- FILE* fp;
- IntNative fh;
- fh = open(name, O_WRONLY|O_CREAT|O_EXCL, S_IWUSR|S_IRUSR);
- if (fh == -1) return NULL;
- fp = fdopen(fh, mode);
- if (fp == NULL) close(fh);
- return fp;
-# else
- return fopen(name, mode);
-# endif
-}
-
-
-/*---------------------------------------------*/
-/*--
- if in doubt, return True
---*/
-static
-Bool notAStandardFile ( Char* name )
-{
- IntNative i;
- struct MY_STAT statBuf;
-
- i = MY_LSTAT ( name, &statBuf );
- if (i != 0) return True;
- if (MY_S_ISREG(statBuf.st_mode)) return False;
- return True;
-}
-
-
-/*---------------------------------------------*/
-/*--
- rac 11/21/98 see if file has hard links to it
---*/
-static
-Int32 countHardLinks ( Char* name )
-{
- IntNative i;
- struct MY_STAT statBuf;
-
- i = MY_LSTAT ( name, &statBuf );
- if (i != 0) return 0;
- return (statBuf.st_nlink - 1);
-}
-
-
-/*---------------------------------------------*/
-/* Copy modification date, access date, permissions and owner from the
- source to destination file. We have to copy this meta-info off
- into fileMetaInfo before starting to compress / decompress it,
- because doing it afterwards means we get the wrong access time.
-
- To complicate matters, in compress() and decompress() below, the
- sequence of tests preceding the call to saveInputFileMetaInfo()
- involves calling fileExists(), which in turn establishes its result
- by attempting to fopen() the file, and if successful, immediately
- fclose()ing it again. So we have to assume that the fopen() call
- does not cause the access time field to be updated.
-
- Reading of the man page for stat() (man 2 stat) on RedHat 7.2 seems
- to imply that merely doing open() will not affect the access time.
- Therefore we merely need to hope that the C library only does
- open() as a result of fopen(), and not any kind of read()-ahead
- cleverness.
-
- It sounds pretty fragile to me. Whether this carries across
- robustly to arbitrary Unix-like platforms (or even works robustly
- on this one, RedHat 7.2) is unknown to me. Nevertheless ...
-*/
-#if BZ_UNIX
-static
-struct MY_STAT fileMetaInfo;
-#endif
-
-static
-void saveInputFileMetaInfo ( Char *srcName )
-{
-# if BZ_UNIX
- IntNative retVal;
- /* Note use of stat here, not lstat. */
- retVal = MY_STAT( srcName, &fileMetaInfo );
- ERROR_IF_NOT_ZERO ( retVal );
-# endif
-}
-
-
-static
-void applySavedTimeInfoToOutputFile ( Char *dstName )
-{
-# if BZ_UNIX
- IntNative retVal;
- struct utimbuf uTimBuf;
-
- uTimBuf.actime = fileMetaInfo.st_atime;
- uTimBuf.modtime = fileMetaInfo.st_mtime;
-
- retVal = utime ( dstName, &uTimBuf );
- ERROR_IF_NOT_ZERO ( retVal );
-# endif
-}
-
-static
-void applySavedFileAttrToOutputFile ( IntNative fd )
-{
-# if BZ_UNIX
- IntNative retVal;
-
- retVal = fchmod ( fd, fileMetaInfo.st_mode );
- ERROR_IF_NOT_ZERO ( retVal );
-
- (void) fchown ( fd, fileMetaInfo.st_uid, fileMetaInfo.st_gid );
- /* chown() will in many cases return with EPERM, which can
- be safely ignored.
- */
-# endif
-}
-
-
-/*---------------------------------------------*/
-static
-Bool containsDubiousChars ( Char* name )
-{
-# if BZ_UNIX
- /* On unix, files can contain any characters and the file expansion
- * is performed by the shell.
- */
- return False;
-# else /* ! BZ_UNIX */
- /* On non-unix (Win* platforms), wildcard characters are not allowed in
- * filenames.
- */
- for (; *name != '\0'; name++)
- if (*name == '?' || *name == '*') return True;
- return False;
-# endif /* BZ_UNIX */
-}
-
-
-/*---------------------------------------------*/
-#define BZ_N_SUFFIX_PAIRS 4
-
-const Char* zSuffix[BZ_N_SUFFIX_PAIRS]
- = { ".bz2", ".bz", ".tbz2", ".tbz" };
-const Char* unzSuffix[BZ_N_SUFFIX_PAIRS]
- = { "", "", ".tar", ".tar" };
-
-static
-Bool hasSuffix ( Char* s, const Char* suffix )
-{
- Int32 ns = strlen(s);
- Int32 nx = strlen(suffix);
- if (ns < nx) return False;
- if (strcmp(s + ns - nx, suffix) == 0) return True;
- return False;
-}
-
-static
-Bool mapSuffix ( Char* name,
- const Char* oldSuffix,
- const Char* newSuffix )
-{
- if (!hasSuffix(name,oldSuffix)) return False;
- name[strlen(name)-strlen(oldSuffix)] = 0;
- strcat ( name, newSuffix );
- return True;
-}
-
-
-/*---------------------------------------------*/
-static
-void compress ( Char *name )
-{
- FILE *inStr;
- FILE *outStr;
- Int32 n, i;
- struct MY_STAT statBuf;
-
- deleteOutputOnInterrupt = False;
-
- if (name == NULL && srcMode != SM_I2O)
- panic ( "compress: bad modes\n" );
-
- switch (srcMode) {
- case SM_I2O:
- copyFileName ( inName, (Char*)"(stdin)" );
- copyFileName ( outName, (Char*)"(stdout)" );
- break;
- case SM_F2F:
- copyFileName ( inName, name );
- copyFileName ( outName, name );
- strcat ( outName, ".bz2" );
- break;
- case SM_F2O:
- copyFileName ( inName, name );
- copyFileName ( outName, (Char*)"(stdout)" );
- break;
- }
-
- if ( srcMode != SM_I2O && containsDubiousChars ( inName ) ) {
- if (noisy)
- fprintf ( stderr, "%s: There are no files matching `%s'.\n",
- progName, inName );
- setExit(1);
- return;
- }
- if ( srcMode != SM_I2O && !fileExists ( inName ) ) {
- fprintf ( stderr, "%s: Can't open input file %s: %s.\n",
- progName, inName, strerror(errno) );
- setExit(1);
- return;
- }
- for (i = 0; i < BZ_N_SUFFIX_PAIRS; i++) {
- if (hasSuffix(inName, zSuffix[i])) {
- if (noisy)
- fprintf ( stderr,
- "%s: Input file %s already has %s suffix.\n",
- progName, inName, zSuffix[i] );
- setExit(1);
- return;
- }
- }
- if ( srcMode == SM_F2F || srcMode == SM_F2O ) {
- MY_STAT(inName, &statBuf);
- if ( MY_S_ISDIR(statBuf.st_mode) ) {
- fprintf( stderr,
- "%s: Input file %s is a directory.\n",
- progName,inName);
- setExit(1);
- return;
- }
- }
- if ( srcMode == SM_F2F && !forceOverwrite && notAStandardFile ( inName )) {
- if (noisy)
- fprintf ( stderr, "%s: Input file %s is not a normal file.\n",
- progName, inName );
- setExit(1);
- return;
- }
- if ( srcMode == SM_F2F && fileExists ( outName ) ) {
- if (forceOverwrite) {
- remove(outName);
- } else {
- fprintf ( stderr, "%s: Output file %s already exists.\n",
- progName, outName );
- setExit(1);
- return;
- }
- }
- if ( srcMode == SM_F2F && !forceOverwrite &&
- (n=countHardLinks ( inName )) > 0) {
- fprintf ( stderr, "%s: Input file %s has %d other link%s.\n",
- progName, inName, n, n > 1 ? "s" : "" );
- setExit(1);
- return;
- }
-
- if ( srcMode == SM_F2F ) {
- /* Save the file's meta-info before we open it. Doing it later
- means we mess up the access times. */
- saveInputFileMetaInfo ( inName );
- }
-
- switch ( srcMode ) {
-
- case SM_I2O:
- inStr = stdin;
- outStr = stdout;
- if ( isatty ( fileno ( stdout ) ) ) {
- fprintf ( stderr,
- "%s: I won't write compressed data to a terminal.\n",
- progName );
- fprintf ( stderr, "%s: For help, type: `%s --help'.\n",
- progName, progName );
- setExit(1);
- return;
- };
- break;
-
- case SM_F2O:
- inStr = fopen ( inName, "rb" );
- outStr = stdout;
- if ( isatty ( fileno ( stdout ) ) ) {
- fprintf ( stderr,
- "%s: I won't write compressed data to a terminal.\n",
- progName );
- fprintf ( stderr, "%s: For help, type: `%s --help'.\n",
- progName, progName );
- if ( inStr != NULL ) fclose ( inStr );
- setExit(1);
- return;
- };
- if ( inStr == NULL ) {
- fprintf ( stderr, "%s: Can't open input file %s: %s.\n",
- progName, inName, strerror(errno) );
- setExit(1);
- return;
- };
- break;
-
- case SM_F2F:
- inStr = fopen ( inName, "rb" );
- outStr = fopen_output_safely ( outName, "wb" );
- if ( outStr == NULL) {
- fprintf ( stderr, "%s: Can't create output file %s: %s.\n",
- progName, outName, strerror(errno) );
- if ( inStr != NULL ) fclose ( inStr );
- setExit(1);
- return;
- }
- if ( inStr == NULL ) {
- fprintf ( stderr, "%s: Can't open input file %s: %s.\n",
- progName, inName, strerror(errno) );
- if ( outStr != NULL ) fclose ( outStr );
- setExit(1);
- return;
- };
- break;
-
- default:
- panic ( "compress: bad srcMode" );
- break;
- }
-
- if (verbosity >= 1) {
- fprintf ( stderr, " %s: ", inName );
- pad ( inName );
- fflush ( stderr );
- }
-
- /*--- Now the input and output handles are sane. Do the Biz. ---*/
- outputHandleJustInCase = outStr;
- deleteOutputOnInterrupt = True;
- compressStream ( inStr, outStr );
- outputHandleJustInCase = NULL;
-
- /*--- If there was an I/O error, we won't get here. ---*/
- if ( srcMode == SM_F2F ) {
- applySavedTimeInfoToOutputFile ( outName );
- deleteOutputOnInterrupt = False;
- if ( !keepInputFiles ) {
- IntNative retVal = remove ( inName );
- ERROR_IF_NOT_ZERO ( retVal );
- }
- }
-
- deleteOutputOnInterrupt = False;
-}
-
-
-/*---------------------------------------------*/
-static
-void uncompress ( Char *name )
-{
- FILE *inStr;
- FILE *outStr;
- Int32 n, i;
- Bool magicNumberOK;
- Bool cantGuess;
- struct MY_STAT statBuf;
-
- deleteOutputOnInterrupt = False;
-
- if (name == NULL && srcMode != SM_I2O)
- panic ( "uncompress: bad modes\n" );
-
- cantGuess = False;
- switch (srcMode) {
- case SM_I2O:
- copyFileName ( inName, (Char*)"(stdin)" );
- copyFileName ( outName, (Char*)"(stdout)" );
- break;
- case SM_F2F:
- copyFileName ( inName, name );
- copyFileName ( outName, name );
- for (i = 0; i < BZ_N_SUFFIX_PAIRS; i++)
- if (mapSuffix(outName,zSuffix[i],unzSuffix[i]))
- goto zzz;
- cantGuess = True;
- strcat ( outName, ".out" );
- break;
- case SM_F2O:
- copyFileName ( inName, name );
- copyFileName ( outName, (Char*)"(stdout)" );
- break;
- }
-
- zzz:
- if ( srcMode != SM_I2O && containsDubiousChars ( inName ) ) {
- if (noisy)
- fprintf ( stderr, "%s: There are no files matching `%s'.\n",
- progName, inName );
- setExit(1);
- return;
- }
- if ( srcMode != SM_I2O && !fileExists ( inName ) ) {
- fprintf ( stderr, "%s: Can't open input file %s: %s.\n",
- progName, inName, strerror(errno) );
- setExit(1);
- return;
- }
- if ( srcMode == SM_F2F || srcMode == SM_F2O ) {
- MY_STAT(inName, &statBuf);
- if ( MY_S_ISDIR(statBuf.st_mode) ) {
- fprintf( stderr,
- "%s: Input file %s is a directory.\n",
- progName,inName);
- setExit(1);
- return;
- }
- }
- if ( srcMode == SM_F2F && !forceOverwrite && notAStandardFile ( inName )) {
- if (noisy)
- fprintf ( stderr, "%s: Input file %s is not a normal file.\n",
- progName, inName );
- setExit(1);
- return;
- }
- if ( /* srcMode == SM_F2F implied && */ cantGuess ) {
- if (noisy)
- fprintf ( stderr,
- "%s: Can't guess original name for %s -- using %s\n",
- progName, inName, outName );
- /* just a warning, no return */
- }
- if ( srcMode == SM_F2F && fileExists ( outName ) ) {
- if (forceOverwrite) {
- remove(outName);
- } else {
- fprintf ( stderr, "%s: Output file %s already exists.\n",
- progName, outName );
- setExit(1);
- return;
- }
- }
- if ( srcMode == SM_F2F && !forceOverwrite &&
- (n=countHardLinks ( inName ) ) > 0) {
- fprintf ( stderr, "%s: Input file %s has %d other link%s.\n",
- progName, inName, n, n > 1 ? "s" : "" );
- setExit(1);
- return;
- }
-
- if ( srcMode == SM_F2F ) {
- /* Save the file's meta-info before we open it. Doing it later
- means we mess up the access times. */
- saveInputFileMetaInfo ( inName );
- }
-
- switch ( srcMode ) {
-
- case SM_I2O:
- inStr = stdin;
- outStr = stdout;
- if ( isatty ( fileno ( stdin ) ) ) {
- fprintf ( stderr,
- "%s: I won't read compressed data from a terminal.\n",
- progName );
- fprintf ( stderr, "%s: For help, type: `%s --help'.\n",
- progName, progName );
- setExit(1);
- return;
- };
- break;
-
- case SM_F2O:
- inStr = fopen ( inName, "rb" );
- outStr = stdout;
- if ( inStr == NULL ) {
- fprintf ( stderr, "%s: Can't open input file %s:%s.\n",
- progName, inName, strerror(errno) );
- if ( inStr != NULL ) fclose ( inStr );
- setExit(1);
- return;
- };
- break;
-
- case SM_F2F:
- inStr = fopen ( inName, "rb" );
- outStr = fopen_output_safely ( outName, "wb" );
- if ( outStr == NULL) {
- fprintf ( stderr, "%s: Can't create output file %s: %s.\n",
- progName, outName, strerror(errno) );
- if ( inStr != NULL ) fclose ( inStr );
- setExit(1);
- return;
- }
- if ( inStr == NULL ) {
- fprintf ( stderr, "%s: Can't open input file %s: %s.\n",
- progName, inName, strerror(errno) );
- if ( outStr != NULL ) fclose ( outStr );
- setExit(1);
- return;
- };
- break;
-
- default:
- panic ( "uncompress: bad srcMode" );
- break;
- }
-
- if (verbosity >= 1) {
- fprintf ( stderr, " %s: ", inName );
- pad ( inName );
- fflush ( stderr );
- }
-
- /*--- Now the input and output handles are sane. Do the Biz. ---*/
- outputHandleJustInCase = outStr;
- deleteOutputOnInterrupt = True;
- magicNumberOK = uncompressStream ( inStr, outStr );
- outputHandleJustInCase = NULL;
-
- /*--- If there was an I/O error, we won't get here. ---*/
- if ( magicNumberOK ) {
- if ( srcMode == SM_F2F ) {
- applySavedTimeInfoToOutputFile ( outName );
- deleteOutputOnInterrupt = False;
- if ( !keepInputFiles ) {
- IntNative retVal = remove ( inName );
- ERROR_IF_NOT_ZERO ( retVal );
- }
- }
- } else {
- unzFailsExist = True;
- deleteOutputOnInterrupt = False;
- if ( srcMode == SM_F2F ) {
- IntNative retVal = remove ( outName );
- ERROR_IF_NOT_ZERO ( retVal );
- }
- }
- deleteOutputOnInterrupt = False;
-
- if ( magicNumberOK ) {
- if (verbosity >= 1)
- fprintf ( stderr, "done\n" );
- } else {
- setExit(2);
- if (verbosity >= 1)
- fprintf ( stderr, "not a bzip2 file.\n" ); else
- fprintf ( stderr,
- "%s: %s is not a bzip2 file.\n",
- progName, inName );
- }
-
-}
-
-
-/*---------------------------------------------*/
-static
-void testf ( Char *name )
-{
- FILE *inStr;
- Bool allOK;
- struct MY_STAT statBuf;
-
- deleteOutputOnInterrupt = False;
-
- if (name == NULL && srcMode != SM_I2O)
- panic ( "testf: bad modes\n" );
-
- copyFileName ( outName, (Char*)"(none)" );
- switch (srcMode) {
- case SM_I2O: copyFileName ( inName, (Char*)"(stdin)" ); break;
- case SM_F2F: copyFileName ( inName, name ); break;
- case SM_F2O: copyFileName ( inName, name ); break;
- }
-
- if ( srcMode != SM_I2O && containsDubiousChars ( inName ) ) {
- if (noisy)
- fprintf ( stderr, "%s: There are no files matching `%s'.\n",
- progName, inName );
- setExit(1);
- return;
- }
- if ( srcMode != SM_I2O && !fileExists ( inName ) ) {
- fprintf ( stderr, "%s: Can't open input %s: %s.\n",
- progName, inName, strerror(errno) );
- setExit(1);
- return;
- }
- if ( srcMode != SM_I2O ) {
- MY_STAT(inName, &statBuf);
- if ( MY_S_ISDIR(statBuf.st_mode) ) {
- fprintf( stderr,
- "%s: Input file %s is a directory.\n",
- progName,inName);
- setExit(1);
- return;
- }
- }
-
- switch ( srcMode ) {
-
- case SM_I2O:
- if ( isatty ( fileno ( stdin ) ) ) {
- fprintf ( stderr,
- "%s: I won't read compressed data from a terminal.\n",
- progName );
- fprintf ( stderr, "%s: For help, type: `%s --help'.\n",
- progName, progName );
- setExit(1);
- return;
- };
- inStr = stdin;
- break;
-
- case SM_F2O: case SM_F2F:
- inStr = fopen ( inName, "rb" );
- if ( inStr == NULL ) {
- fprintf ( stderr, "%s: Can't open input file %s:%s.\n",
- progName, inName, strerror(errno) );
- setExit(1);
- return;
- };
- break;
-
- default:
- panic ( "testf: bad srcMode" );
- break;
- }
-
- if (verbosity >= 1) {
- fprintf ( stderr, " %s: ", inName );
- pad ( inName );
- fflush ( stderr );
- }
-
- /*--- Now the input handle is sane. Do the Biz. ---*/
- outputHandleJustInCase = NULL;
- allOK = testStream ( inStr );
-
- if (allOK && verbosity >= 1) fprintf ( stderr, "ok\n" );
- if (!allOK) testFailsExist = True;
-}
-
-
-/*---------------------------------------------*/
-static
-void license ( void )
-{
- fprintf ( stderr,
-
- "bzip2, a block-sorting file compressor. "
- "Version %s.\n"
- " \n"
- " Copyright (C) 1996-2010 by Julian Seward.\n"
- " \n"
- " This program is free software; you can redistribute it and/or modify\n"
- " it under the terms set out in the LICENSE file, which is included\n"
- " in the bzip2-1.0.6 source distribution.\n"
- " \n"
- " This program is distributed in the hope that it will be useful,\n"
- " but WITHOUT ANY WARRANTY; without even the implied warranty of\n"
- " MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the\n"
- " LICENSE file for more details.\n"
- " \n",
- BZ2_bzlibVersion()
- );
-}
-
-
-/*---------------------------------------------*/
-static
-void usage ( Char *fullProgName )
-{
- fprintf (
- stderr,
- "bzip2, a block-sorting file compressor. "
- "Version %s.\n"
- "\n usage: %s [flags and input files in any order]\n"
- "\n"
- " -h --help print this message\n"
- " -d --decompress force decompression\n"
- " -z --compress force compression\n"
- " -k --keep keep (don't delete) input files\n"
- " -f --force overwrite existing output files\n"
- " -t --test test compressed file integrity\n"
- " -c --stdout output to standard out\n"
- " -q --quiet suppress noncritical error messages\n"
- " -v --verbose be verbose (a 2nd -v gives more)\n"
- " -L --license display software version & license\n"
- " -V --version display software version & license\n"
- " -s --small use less memory (at most 2500k)\n"
- " -1 .. -9 set block size to 100k .. 900k\n"
- " --fast alias for -1\n"
- " --best alias for -9\n"
- "\n"
- " If invoked as `bzip2', default action is to compress.\n"
- " as `bunzip2', default action is to decompress.\n"
- " as `bzcat', default action is to decompress to stdout.\n"
- "\n"
- " If no file names are given, bzip2 compresses or decompresses\n"
- " from standard input to standard output. You can combine\n"
- " short flags, so `-v -4' means the same as -v4 or -4v, &c.\n"
-# if BZ_UNIX
- "\n"
-# endif
- ,
-
- BZ2_bzlibVersion(),
- fullProgName
- );
-}
-
-
-/*---------------------------------------------*/
-static
-void redundant ( Char* flag )
-{
- fprintf (
- stderr,
- "%s: %s is redundant in versions 0.9.5 and above\n",
- progName, flag );
-}
-
-
-/*---------------------------------------------*/
-/*--
- All the garbage from here to main() is purely to
- implement a linked list of command-line arguments,
- into which main() copies argv[1 .. argc-1].
-
- The purpose of this exercise is to facilitate
- the expansion of wildcard characters * and ? in
- filenames for OSs which don't know how to do it
- themselves, like MSDOS, Windows 95 and NT.
-
- The actual Dirty Work is done by the platform-
- specific macro APPEND_FILESPEC.
---*/
-
-typedef
- struct zzzz {
- Char *name;
- struct zzzz *link;
- }
- Cell;
-
-
-/*---------------------------------------------*/
-static
-void *myMalloc ( Int32 n )
-{
- void* p;
-
- p = malloc ( (size_t)n );
- if (p == NULL) outOfMemory ();
- return p;
-}
-
-
-/*---------------------------------------------*/
-static
-Cell *mkCell ( void )
-{
- Cell *c;
-
- c = (Cell*) myMalloc ( sizeof ( Cell ) );
- c->name = NULL;
- c->link = NULL;
- return c;
-}
-
-
-/*---------------------------------------------*/
-static
-Cell *snocString ( Cell *root, Char *name )
-{
- if (root == NULL) {
- Cell *tmp = mkCell();
- tmp->name = (Char*) myMalloc ( 5 + strlen(name) );
- strcpy ( tmp->name, name );
- return tmp;
- } else {
- Cell *tmp = root;
- while (tmp->link != NULL) tmp = tmp->link;
- tmp->link = snocString ( tmp->link, name );
- return root;
- }
-}
-
-
-/*---------------------------------------------*/
-static
-void addFlagsFromEnvVar ( Cell** argList, Char* varName )
-{
- Int32 i, j, k;
- Char *envbase, *p;
-
- envbase = getenv(varName);
- if (envbase != NULL) {
- p = envbase;
- i = 0;
- while (True) {
- if (p[i] == 0) break;
- p += i;
- i = 0;
- while (isspace((Int32)(p[0]))) p++;
- while (p[i] != 0 && !isspace((Int32)(p[i]))) i++;
- if (i > 0) {
- k = i; if (k > FILE_NAME_LEN-10) k = FILE_NAME_LEN-10;
- for (j = 0; j < k; j++) tmpName[j] = p[j];
- tmpName[k] = 0;
- APPEND_FLAG(*argList, tmpName);
- }
- }
- }
-}
-
-
-/*---------------------------------------------*/
-#define ISFLAG(s) (strcmp(aa->name, (s))==0)
-
-IntNative main ( IntNative argc, Char *argv[] )
-{
- Int32 i, j;
- Char *tmp;
- Cell *argList;
- Cell *aa;
- Bool decode;
-
- /*-- Be really really really paranoid :-) --*/
- if (sizeof(Int32) != 4 || sizeof(UInt32) != 4 ||
- sizeof(Int16) != 2 || sizeof(UInt16) != 2 ||
- sizeof(Char) != 1 || sizeof(UChar) != 1)
- configError();
-
- /*-- Initialise --*/
- outputHandleJustInCase = NULL;
- smallMode = False;
- keepInputFiles = False;
- forceOverwrite = False;
- noisy = True;
- verbosity = 0;
- blockSize100k = 9;
- testFailsExist = False;
- unzFailsExist = False;
- numFileNames = 0;
- numFilesProcessed = 0;
- workFactor = 30;
- deleteOutputOnInterrupt = False;
- exitValue = 0;
- i = j = 0; /* avoid bogus warning from egcs-1.1.X */
-
- /*-- Set up signal handlers for mem access errors --*/
- signal (SIGSEGV, mySIGSEGVorSIGBUScatcher);
-# if BZ_UNIX
-# ifndef __DJGPP__
- signal (SIGBUS, mySIGSEGVorSIGBUScatcher);
-# endif
-# endif
-
- copyFileName ( inName, (Char*)"(none)" );
- copyFileName ( outName, (Char*)"(none)" );
-
- copyFileName ( progNameReally, argv[0] );
- progName = &progNameReally[0];
- for (tmp = &progNameReally[0]; *tmp != '\0'; tmp++)
- if (*tmp == PATH_SEP) progName = tmp + 1;
-
-
- /*-- Copy flags from env var BZIP2, and
- expand filename wildcards in arg list.
- --*/
- argList = NULL;
- addFlagsFromEnvVar ( &argList, (Char*)"BZIP2" );
- addFlagsFromEnvVar ( &argList, (Char*)"BZIP" );
- for (i = 1; i <= argc-1; i++)
- APPEND_FILESPEC(argList, argv[i]);
-
-
- /*-- Find the length of the longest filename --*/
- longestFileName = 7;
- numFileNames = 0;
- decode = True;
- for (aa = argList; aa != NULL; aa = aa->link) {
- if (ISFLAG("--")) { decode = False; continue; }
- if (aa->name[0] == '-' && decode) continue;
- numFileNames++;
- if (longestFileName < (Int32)strlen(aa->name) )
- longestFileName = (Int32)strlen(aa->name);
- }
-
-
- /*-- Determine source modes; flag handling may change this too. --*/
- if (numFileNames == 0)
- srcMode = SM_I2O; else srcMode = SM_F2F;
-
-
- /*-- Determine what to do (compress/uncompress/test/cat). --*/
- /*-- Note that subsequent flag handling may change this. --*/
- opMode = OM_Z;
-
- if ( (strstr ( progName, "unzip" ) != 0) ||
- (strstr ( progName, "UNZIP" ) != 0) )
- opMode = OM_UNZ;
-
- if ( (strstr ( progName, "z2cat" ) != 0) ||
- (strstr ( progName, "Z2CAT" ) != 0) ||
- (strstr ( progName, "zcat" ) != 0) ||
- (strstr ( progName, "ZCAT" ) != 0) ) {
- opMode = OM_UNZ;
- srcMode = (numFileNames == 0) ? SM_I2O : SM_F2O;
- }
-
-
- /*-- Look at the flags. --*/
- for (aa = argList; aa != NULL; aa = aa->link) {
- if (ISFLAG("--")) break;
- if (aa->name[0] == '-' && aa->name[1] != '-') {
- for (j = 1; aa->name[j] != '\0'; j++) {
- switch (aa->name[j]) {
- case 'c': srcMode = SM_F2O; break;
- case 'd': opMode = OM_UNZ; break;
- case 'z': opMode = OM_Z; break;
- case 'f': forceOverwrite = True; break;
- case 't': opMode = OM_TEST; break;
- case 'k': keepInputFiles = True; break;
- case 's': smallMode = True; break;
- case 'q': noisy = False; break;
- case '1': blockSize100k = 1; break;
- case '2': blockSize100k = 2; break;
- case '3': blockSize100k = 3; break;
- case '4': blockSize100k = 4; break;
- case '5': blockSize100k = 5; break;
- case '6': blockSize100k = 6; break;
- case '7': blockSize100k = 7; break;
- case '8': blockSize100k = 8; break;
- case '9': blockSize100k = 9; break;
- case 'V':
- case 'L': license(); break;
- case 'v': verbosity++; break;
- case 'h': usage ( progName );
- exit ( 0 );
- break;
- default: fprintf ( stderr, "%s: Bad flag `%s'\n",
- progName, aa->name );
- usage ( progName );
- exit ( 1 );
- break;
- }
- }
- }
- }
-
- /*-- And again ... --*/
- for (aa = argList; aa != NULL; aa = aa->link) {
- if (ISFLAG("--")) break;
- if (ISFLAG("--stdout")) srcMode = SM_F2O; else
- if (ISFLAG("--decompress")) opMode = OM_UNZ; else
- if (ISFLAG("--compress")) opMode = OM_Z; else
- if (ISFLAG("--force")) forceOverwrite = True; else
- if (ISFLAG("--test")) opMode = OM_TEST; else
- if (ISFLAG("--keep")) keepInputFiles = True; else
- if (ISFLAG("--small")) smallMode = True; else
- if (ISFLAG("--quiet")) noisy = False; else
- if (ISFLAG("--version")) license(); else
- if (ISFLAG("--license")) license(); else
- if (ISFLAG("--exponential")) workFactor = 1; else
- if (ISFLAG("--repetitive-best")) redundant(aa->name); else
- if (ISFLAG("--repetitive-fast")) redundant(aa->name); else
- if (ISFLAG("--fast")) blockSize100k = 1; else
- if (ISFLAG("--best")) blockSize100k = 9; else
- if (ISFLAG("--verbose")) verbosity++; else
- if (ISFLAG("--help")) { usage ( progName ); exit ( 0 ); }
- else
- if (strncmp ( aa->name, "--", 2) == 0) {
- fprintf ( stderr, "%s: Bad flag `%s'\n", progName, aa->name );
- usage ( progName );
- exit ( 1 );
- }
- }
-
- if (verbosity > 4) verbosity = 4;
- if (opMode == OM_Z && smallMode && blockSize100k > 2)
- blockSize100k = 2;
-
- if (opMode == OM_TEST && srcMode == SM_F2O) {
- fprintf ( stderr, "%s: -c and -t cannot be used together.\n",
- progName );
- exit ( 1 );
- }
-
- if (srcMode == SM_F2O && numFileNames == 0)
- srcMode = SM_I2O;
-
- if (opMode != OM_Z) blockSize100k = 0;
-
- if (srcMode == SM_F2F) {
- signal (SIGINT, mySignalCatcher);
- signal (SIGTERM, mySignalCatcher);
-# if BZ_UNIX
- signal (SIGHUP, mySignalCatcher);
-# endif
- }
-
- if (opMode == OM_Z) {
- if (srcMode == SM_I2O) {
- compress ( NULL );
- } else {
- decode = True;
- for (aa = argList; aa != NULL; aa = aa->link) {
- if (ISFLAG("--")) { decode = False; continue; }
- if (aa->name[0] == '-' && decode) continue;
- numFilesProcessed++;
- compress ( aa->name );
- }
- }
- }
- else
-
- if (opMode == OM_UNZ) {
- unzFailsExist = False;
- if (srcMode == SM_I2O) {
- uncompress ( NULL );
- } else {
- decode = True;
- for (aa = argList; aa != NULL; aa = aa->link) {
- if (ISFLAG("--")) { decode = False; continue; }
- if (aa->name[0] == '-' && decode) continue;
- numFilesProcessed++;
- uncompress ( aa->name );
- }
- }
- if (unzFailsExist) {
- setExit(2);
- exit(exitValue);
- }
- }
-
- else {
- testFailsExist = False;
- if (srcMode == SM_I2O) {
- testf ( NULL );
- } else {
- decode = True;
- for (aa = argList; aa != NULL; aa = aa->link) {
- if (ISFLAG("--")) { decode = False; continue; }
- if (aa->name[0] == '-' && decode) continue;
- numFilesProcessed++;
- testf ( aa->name );
- }
- }
- if (testFailsExist && noisy) {
- fprintf ( stderr,
- "\n"
- "You can use the `bzip2recover' program to attempt to recover\n"
- "data from undamaged sections of corrupted files.\n\n"
- );
- setExit(2);
- exit(exitValue);
- }
- }
-
- /* Free the argument list memory to mollify leak detectors
- (eg) Purify, Checker. Serves no other useful purpose.
- */
- aa = argList;
- while (aa != NULL) {
- Cell* aa2 = aa->link;
- if (aa->name != NULL) free(aa->name);
- free(aa);
- aa = aa2;
- }
-
- return exitValue;
-}
-
-
-/*-----------------------------------------------------------*/
-/*--- end bzip2.c ---*/
-/*-----------------------------------------------------------*/
+++ /dev/null
-/*-----------------------------------------------------------*/
-/*--- Block recoverer program for bzip2 ---*/
-/*--- bzip2recover.c ---*/
-/*-----------------------------------------------------------*/
-
-/* ------------------------------------------------------------------
- This file is part of bzip2/libbzip2, a program and library for
- lossless, block-sorting data compression.
-
- bzip2/libbzip2 version 1.0.6 of 6 September 2010
- Copyright (C) 1996-2010 Julian Seward <jseward@bzip.org>
-
- Please read the WARNING, DISCLAIMER and PATENTS sections in the
- README file.
-
- This program is released under the terms of the license contained
- in the file LICENSE.
- ------------------------------------------------------------------ */
-
-/* This program is a complete hack and should be rewritten properly.
- It isn't very complicated. */
-
-#include <stdio.h>
-#include <errno.h>
-#include <stdlib.h>
-#include <string.h>
-
-
-/* This program records bit locations in the file to be recovered.
- That means that if 64-bit ints are not supported, we will not
- be able to recover .bz2 files over 512MB (2^32 bits) long.
- On GNU supported platforms, we take advantage of the 64-bit
- int support to circumvent this problem. Ditto MSVC.
-
- This change occurred in version 1.0.2; all prior versions have
- the 512MB limitation.
-*/
-#ifdef __GNUC__
- typedef unsigned long long int MaybeUInt64;
-# define MaybeUInt64_FMT "%Lu"
-#else
-#ifdef _MSC_VER
- typedef unsigned __int64 MaybeUInt64;
-# define MaybeUInt64_FMT "%I64u"
-#else
- typedef unsigned int MaybeUInt64;
-# define MaybeUInt64_FMT "%u"
-#endif
-#endif
-
-typedef unsigned int UInt32;
-typedef int Int32;
-typedef unsigned char UChar;
-typedef char Char;
-typedef unsigned char Bool;
-#define True ((Bool)1)
-#define False ((Bool)0)
-
-
-#define BZ_MAX_FILENAME 2000
-
-Char inFileName[BZ_MAX_FILENAME];
-Char outFileName[BZ_MAX_FILENAME];
-Char progName[BZ_MAX_FILENAME];
-
-MaybeUInt64 bytesOut = 0;
-MaybeUInt64 bytesIn = 0;
-
-
-/*---------------------------------------------------*/
-/*--- Header bytes ---*/
-/*---------------------------------------------------*/
-
-#define BZ_HDR_B 0x42 /* 'B' */
-#define BZ_HDR_Z 0x5a /* 'Z' */
-#define BZ_HDR_h 0x68 /* 'h' */
-#define BZ_HDR_0 0x30 /* '0' */
-
-
-/*---------------------------------------------------*/
-/*--- I/O errors ---*/
-/*---------------------------------------------------*/
-
-/*---------------------------------------------*/
-static void readError ( void )
-{
- fprintf ( stderr,
- "%s: I/O error reading `%s', possible reason follows.\n",
- progName, inFileName );
- perror ( progName );
- fprintf ( stderr, "%s: warning: output file(s) may be incomplete.\n",
- progName );
- exit ( 1 );
-}
-
-
-/*---------------------------------------------*/
-static void writeError ( void )
-{
- fprintf ( stderr,
- "%s: I/O error reading `%s', possible reason follows.\n",
- progName, inFileName );
- perror ( progName );
- fprintf ( stderr, "%s: warning: output file(s) may be incomplete.\n",
- progName );
- exit ( 1 );
-}
-
-
-/*---------------------------------------------*/
-static void mallocFail ( Int32 n )
-{
- fprintf ( stderr,
- "%s: malloc failed on request for %d bytes.\n",
- progName, n );
- fprintf ( stderr, "%s: warning: output file(s) may be incomplete.\n",
- progName );
- exit ( 1 );
-}
-
-
-/*---------------------------------------------*/
-static void tooManyBlocks ( Int32 max_handled_blocks )
-{
- fprintf ( stderr,
- "%s: `%s' appears to contain more than %d blocks\n",
- progName, inFileName, max_handled_blocks );
- fprintf ( stderr,
- "%s: and cannot be handled. To fix, increase\n",
- progName );
- fprintf ( stderr,
- "%s: BZ_MAX_HANDLED_BLOCKS in bzip2recover.c, and recompile.\n",
- progName );
- exit ( 1 );
-}
-
-
-
-/*---------------------------------------------------*/
-/*--- Bit stream I/O ---*/
-/*---------------------------------------------------*/
-
-typedef
- struct {
- FILE* handle;
- Int32 buffer;
- Int32 buffLive;
- Char mode;
- }
- BitStream;
-
-
-/*---------------------------------------------*/
-static BitStream* bsOpenReadStream ( FILE* stream )
-{
- BitStream *bs = malloc ( sizeof(BitStream) );
- if (bs == NULL) mallocFail ( sizeof(BitStream) );
- bs->handle = stream;
- bs->buffer = 0;
- bs->buffLive = 0;
- bs->mode = 'r';
- return bs;
-}
-
-
-/*---------------------------------------------*/
-static BitStream* bsOpenWriteStream ( FILE* stream )
-{
- BitStream *bs = malloc ( sizeof(BitStream) );
- if (bs == NULL) mallocFail ( sizeof(BitStream) );
- bs->handle = stream;
- bs->buffer = 0;
- bs->buffLive = 0;
- bs->mode = 'w';
- return bs;
-}
-
-
-/*---------------------------------------------*/
-static void bsPutBit ( BitStream* bs, Int32 bit )
-{
- if (bs->buffLive == 8) {
- Int32 retVal = putc ( (UChar) bs->buffer, bs->handle );
- if (retVal == EOF) writeError();
- bytesOut++;
- bs->buffLive = 1;
- bs->buffer = bit & 0x1;
- } else {
- bs->buffer = ( (bs->buffer << 1) | (bit & 0x1) );
- bs->buffLive++;
- };
-}
-
-
-/*---------------------------------------------*/
-/*--
- Returns 0 or 1, or 2 to indicate EOF.
---*/
-static Int32 bsGetBit ( BitStream* bs )
-{
- if (bs->buffLive > 0) {
- bs->buffLive --;
- return ( ((bs->buffer) >> (bs->buffLive)) & 0x1 );
- } else {
- Int32 retVal = getc ( bs->handle );
- if ( retVal == EOF ) {
- if (errno != 0) readError();
- return 2;
- }
- bs->buffLive = 7;
- bs->buffer = retVal;
- return ( ((bs->buffer) >> 7) & 0x1 );
- }
-}
-
-
-/*---------------------------------------------*/
-static void bsClose ( BitStream* bs )
-{
- Int32 retVal;
-
- if ( bs->mode == 'w' ) {
- while ( bs->buffLive < 8 ) {
- bs->buffLive++;
- bs->buffer <<= 1;
- };
- retVal = putc ( (UChar) (bs->buffer), bs->handle );
- if (retVal == EOF) writeError();
- bytesOut++;
- retVal = fflush ( bs->handle );
- if (retVal == EOF) writeError();
- }
- retVal = fclose ( bs->handle );
- if (retVal == EOF) {
- if (bs->mode == 'w') writeError(); else readError();
- }
- free ( bs );
-}
-
-
-/*---------------------------------------------*/
-static void bsPutUChar ( BitStream* bs, UChar c )
-{
- Int32 i;
- for (i = 7; i >= 0; i--)
- bsPutBit ( bs, (((UInt32) c) >> i) & 0x1 );
-}
-
-
-/*---------------------------------------------*/
-static void bsPutUInt32 ( BitStream* bs, UInt32 c )
-{
- Int32 i;
-
- for (i = 31; i >= 0; i--)
- bsPutBit ( bs, (c >> i) & 0x1 );
-}
-
-
-/*---------------------------------------------*/
-static Bool endsInBz2 ( Char* name )
-{
- Int32 n = strlen ( name );
- if (n <= 4) return False;
- return
- (name[n-4] == '.' &&
- name[n-3] == 'b' &&
- name[n-2] == 'z' &&
- name[n-1] == '2');
-}
-
-
-/*---------------------------------------------------*/
-/*--- ---*/
-/*---------------------------------------------------*/
-
-/* This logic isn't really right when it comes to Cygwin. */
-#ifdef _WIN32
-# define BZ_SPLIT_SYM '\\' /* path splitter on Windows platform */
-#else
-# define BZ_SPLIT_SYM '/' /* path splitter on Unix platform */
-#endif
-
-#define BLOCK_HEADER_HI 0x00003141UL
-#define BLOCK_HEADER_LO 0x59265359UL
-
-#define BLOCK_ENDMARK_HI 0x00001772UL
-#define BLOCK_ENDMARK_LO 0x45385090UL
-
-/* Increase if necessary. However, a .bz2 file with > 50000 blocks
- would have an uncompressed size of at least 40GB, so the chances
- are low you'll need to up this.
-*/
-#define BZ_MAX_HANDLED_BLOCKS 50000
-
-MaybeUInt64 bStart [BZ_MAX_HANDLED_BLOCKS];
-MaybeUInt64 bEnd [BZ_MAX_HANDLED_BLOCKS];
-MaybeUInt64 rbStart[BZ_MAX_HANDLED_BLOCKS];
-MaybeUInt64 rbEnd [BZ_MAX_HANDLED_BLOCKS];
-
-Int32 main ( Int32 argc, Char** argv )
-{
- FILE* inFile;
- FILE* outFile;
- BitStream* bsIn, *bsWr;
- Int32 b, wrBlock, currBlock, rbCtr;
- MaybeUInt64 bitsRead;
-
- UInt32 buffHi, buffLo, blockCRC;
- Char* p;
-
- strcpy ( progName, argv[0] );
- inFileName[0] = outFileName[0] = 0;
-
- fprintf ( stderr,
- "bzip2recover 1.0.6: extracts blocks from damaged .bz2 files.\n" );
-
- if (argc != 2) {
- fprintf ( stderr, "%s: usage is `%s damaged_file_name'.\n",
- progName, progName );
- switch (sizeof(MaybeUInt64)) {
- case 8:
- fprintf(stderr,
- "\trestrictions on size of recovered file: None\n");
- break;
- case 4:
- fprintf(stderr,
- "\trestrictions on size of recovered file: 512 MB\n");
- fprintf(stderr,
- "\tto circumvent, recompile with MaybeUInt64 as an\n"
- "\tunsigned 64-bit int.\n");
- break;
- default:
- fprintf(stderr,
- "\tsizeof(MaybeUInt64) is not 4 or 8 -- "
- "configuration error.\n");
- break;
- }
- exit(1);
- }
-
- if (strlen(argv[1]) >= BZ_MAX_FILENAME-20) {
- fprintf ( stderr,
- "%s: supplied filename is suspiciously (>= %d chars) long. Bye!\n",
- progName, (int)strlen(argv[1]) );
- exit(1);
- }
-
- strcpy ( inFileName, argv[1] );
-
- inFile = fopen ( inFileName, "rb" );
- if (inFile == NULL) {
- fprintf ( stderr, "%s: can't read `%s'\n", progName, inFileName );
- exit(1);
- }
-
- bsIn = bsOpenReadStream ( inFile );
- fprintf ( stderr, "%s: searching for block boundaries ...\n", progName );
-
- bitsRead = 0;
- buffHi = buffLo = 0;
- currBlock = 0;
- bStart[currBlock] = 0;
-
- rbCtr = 0;
-
- while (True) {
- b = bsGetBit ( bsIn );
- bitsRead++;
- if (b == 2) {
- if (bitsRead >= bStart[currBlock] &&
- (bitsRead - bStart[currBlock]) >= 40) {
- bEnd[currBlock] = bitsRead-1;
- if (currBlock > 0)
- fprintf ( stderr, " block %d runs from " MaybeUInt64_FMT
- " to " MaybeUInt64_FMT " (incomplete)\n",
- currBlock, bStart[currBlock], bEnd[currBlock] );
- } else
- currBlock--;
- break;
- }
- buffHi = (buffHi << 1) | (buffLo >> 31);
- buffLo = (buffLo << 1) | (b & 1);
- if ( ( (buffHi & 0x0000ffff) == BLOCK_HEADER_HI
- && buffLo == BLOCK_HEADER_LO)
- ||
- ( (buffHi & 0x0000ffff) == BLOCK_ENDMARK_HI
- && buffLo == BLOCK_ENDMARK_LO)
- ) {
- if (bitsRead > 49) {
- bEnd[currBlock] = bitsRead-49;
- } else {
- bEnd[currBlock] = 0;
- }
- if (currBlock > 0 &&
- (bEnd[currBlock] - bStart[currBlock]) >= 130) {
- fprintf ( stderr, " block %d runs from " MaybeUInt64_FMT
- " to " MaybeUInt64_FMT "\n",
- rbCtr+1, bStart[currBlock], bEnd[currBlock] );
- rbStart[rbCtr] = bStart[currBlock];
- rbEnd[rbCtr] = bEnd[currBlock];
- rbCtr++;
- }
- if (currBlock >= BZ_MAX_HANDLED_BLOCKS)
- tooManyBlocks(BZ_MAX_HANDLED_BLOCKS);
- currBlock++;
-
- bStart[currBlock] = bitsRead;
- }
- }
-
- bsClose ( bsIn );
-
- /*-- identified blocks run from 1 to rbCtr inclusive. --*/
-
- if (rbCtr < 1) {
- fprintf ( stderr,
- "%s: sorry, I couldn't find any block boundaries.\n",
- progName );
- exit(1);
- };
-
- fprintf ( stderr, "%s: splitting into blocks\n", progName );
-
- inFile = fopen ( inFileName, "rb" );
- if (inFile == NULL) {
- fprintf ( stderr, "%s: can't open `%s'\n", progName, inFileName );
- exit(1);
- }
- bsIn = bsOpenReadStream ( inFile );
-
- /*-- placate gcc's dataflow analyser --*/
- blockCRC = 0; bsWr = 0;
-
- bitsRead = 0;
- outFile = NULL;
- wrBlock = 0;
- while (True) {
- b = bsGetBit(bsIn);
- if (b == 2) break;
- buffHi = (buffHi << 1) | (buffLo >> 31);
- buffLo = (buffLo << 1) | (b & 1);
- if (bitsRead == 47+rbStart[wrBlock])
- blockCRC = (buffHi << 16) | (buffLo >> 16);
-
- if (outFile != NULL && bitsRead >= rbStart[wrBlock]
- && bitsRead <= rbEnd[wrBlock]) {
- bsPutBit ( bsWr, b );
- }
-
- bitsRead++;
-
- if (bitsRead == rbEnd[wrBlock]+1) {
- if (outFile != NULL) {
- bsPutUChar ( bsWr, 0x17 ); bsPutUChar ( bsWr, 0x72 );
- bsPutUChar ( bsWr, 0x45 ); bsPutUChar ( bsWr, 0x38 );
- bsPutUChar ( bsWr, 0x50 ); bsPutUChar ( bsWr, 0x90 );
- bsPutUInt32 ( bsWr, blockCRC );
- bsClose ( bsWr );
- }
- if (wrBlock >= rbCtr) break;
- wrBlock++;
- } else
- if (bitsRead == rbStart[wrBlock]) {
- /* Create the output file name, correctly handling leading paths.
- (31.10.2001 by Sergey E. Kusikov) */
- Char* split;
- Int32 ofs, k;
- for (k = 0; k < BZ_MAX_FILENAME; k++)
- outFileName[k] = 0;
- strcpy (outFileName, inFileName);
- split = strrchr (outFileName, BZ_SPLIT_SYM);
- if (split == NULL) {
- split = outFileName;
- } else {
- ++split;
- }
- /* Now split points to the start of the basename. */
- ofs = split - outFileName;
- sprintf (split, "rec%5d", wrBlock+1);
- for (p = split; *p != 0; p++) if (*p == ' ') *p = '0';
- strcat (outFileName, inFileName + ofs);
-
- if ( !endsInBz2(outFileName)) strcat ( outFileName, ".bz2" );
-
- fprintf ( stderr, " writing block %d to `%s' ...\n",
- wrBlock+1, outFileName );
-
- outFile = fopen ( outFileName, "wb" );
- if (outFile == NULL) {
- fprintf ( stderr, "%s: can't write `%s'\n",
- progName, outFileName );
- exit(1);
- }
- bsWr = bsOpenWriteStream ( outFile );
- bsPutUChar ( bsWr, BZ_HDR_B );
- bsPutUChar ( bsWr, BZ_HDR_Z );
- bsPutUChar ( bsWr, BZ_HDR_h );
- bsPutUChar ( bsWr, BZ_HDR_0 + 9 );
- bsPutUChar ( bsWr, 0x31 ); bsPutUChar ( bsWr, 0x41 );
- bsPutUChar ( bsWr, 0x59 ); bsPutUChar ( bsWr, 0x26 );
- bsPutUChar ( bsWr, 0x53 ); bsPutUChar ( bsWr, 0x59 );
- }
- }
-
- fprintf ( stderr, "%s: finished\n", progName );
- return 0;
-}
-
-
-
-/*-----------------------------------------------------------*/
-/*--- end bzip2recover.c ---*/
-/*-----------------------------------------------------------*/
+++ /dev/null
-
-/*-------------------------------------------------------------*/
-/*--- Library top-level functions. ---*/
-/*--- bzlib.c ---*/
-/*-------------------------------------------------------------*/
-
-/* ------------------------------------------------------------------
- This file is part of bzip2/libbzip2, a program and library for
- lossless, block-sorting data compression.
-
- bzip2/libbzip2 version 1.0.6 of 6 September 2010
- Copyright (C) 1996-2010 Julian Seward <jseward@bzip.org>
-
- Please read the WARNING, DISCLAIMER and PATENTS sections in the
- README file.
-
- This program is released under the terms of the license contained
- in the file LICENSE.
- ------------------------------------------------------------------ */
-
-/* CHANGES
- 0.9.0 -- original version.
- 0.9.0a/b -- no changes in this file.
- 0.9.0c -- made zero-length BZ_FLUSH work correctly in bzCompress().
- fixed bzWrite/bzRead to ignore zero-length requests.
- fixed bzread to correctly handle read requests after EOF.
- wrong parameter order in call to bzDecompressInit in
- bzBuffToBuffDecompress. Fixed.
-*/
-
-#ifdef BZ_DECOMPRESS_ONLY
-#ifndef __NTDRIVER__
- #define __NTDRIVER__
-#endif
-#include <wdm.h>
-#include <debug.h>
-#endif
-#include "bzlib_private.h"
-
-
-/*---------------------------------------------------*/
-/*--- Compression stuff ---*/
-/*---------------------------------------------------*/
-
-
-/*---------------------------------------------------*/
-#ifndef BZ_NO_STDIO
-void BZ2_bz__AssertH__fail ( int errcode )
-{
- fprintf(stderr,
- "\n\nbzip2/libbzip2: internal error number %d.\n"
- "This is a bug in bzip2/libbzip2, %s.\n"
- "Please report it to me at: jseward@bzip.org. If this happened\n"
- "when you were using some program which uses libbzip2 as a\n"
- "component, you should also report this bug to the author(s)\n"
- "of that program. Please make an effort to report this bug;\n"
- "timely and accurate bug reports eventually lead to higher\n"
- "quality software. Thanks. Julian Seward, 10 December 2007.\n\n",
- errcode,
- BZ2_bzlibVersion()
- );
-
- if (errcode == 1007) {
- fprintf(stderr,
- "\n*** A special note about internal error number 1007 ***\n"
- "\n"
- "Experience suggests that a common cause of i.e. 1007\n"
- "is unreliable memory or other hardware. The 1007 assertion\n"
- "just happens to cross-check the results of huge numbers of\n"
- "memory reads/writes, and so acts (unintendedly) as a stress\n"
- "test of your memory system.\n"
- "\n"
- "I suggest the following: try compressing the file again,\n"
- "possibly monitoring progress in detail with the -vv flag.\n"
- "\n"
- "* If the error cannot be reproduced, and/or happens at different\n"
- " points in compression, you may have a flaky memory system.\n"
- " Try a memory-test program. I have used Memtest86\n"
- " (www.memtest86.com). At the time of writing it is free (GPLd).\n"
- " Memtest86 tests memory much more thorougly than your BIOSs\n"
- " power-on test, and may find failures that the BIOS doesn't.\n"
- "\n"
- "* If the error can be repeatably reproduced, this is a bug in\n"
- " bzip2, and I would very much like to hear about it. Please\n"
- " let me know, and, ideally, save a copy of the file causing the\n"
- " problem -- without which I will be unable to investigate it.\n"
- "\n"
- );
- }
-
- exit(3);
-}
-#endif
-
-
-/*---------------------------------------------------*/
-static
-int bz_config_ok ( void )
-{
- if (sizeof(int) != 4) return 0;
- if (sizeof(short) != 2) return 0;
- if (sizeof(char) != 1) return 0;
- return 1;
-}
-
-
-/*---------------------------------------------------*/
-static
-void* default_bzalloc ( void* opaque, Int32 items, Int32 size )
-{
- return ExAllocatePool( PagedPool, items * size );
-}
-
-static
-void default_bzfree ( void* opaque, void* addr )
-{
- ExFreePool( addr );
-}
-
-#ifndef BZ_DECOMPRESS_ONLY
-
-/*---------------------------------------------------*/
-static
-void prepare_new_block ( EState* s )
-{
- Int32 i;
- s->nblock = 0;
- s->numZ = 0;
- s->state_out_pos = 0;
- BZ_INITIALISE_CRC ( s->blockCRC );
- for (i = 0; i < 256; i++) s->inUse[i] = False;
- s->blockNo++;
-}
-
-
-/*---------------------------------------------------*/
-static
-void init_RL ( EState* s )
-{
- s->state_in_ch = 256;
- s->state_in_len = 0;
-}
-
-
-static
-Bool isempty_RL ( EState* s )
-{
- if (s->state_in_ch < 256 && s->state_in_len > 0)
- return False; else
- return True;
-}
-
-
-/*---------------------------------------------------*/
-int BZ_API(BZ2_bzCompressInit)
- ( bz_stream* strm,
- int blockSize100k,
- int verbosity,
- int workFactor )
-{
- Int32 n;
- EState* s;
-
- if (!bz_config_ok()) return BZ_CONFIG_ERROR;
-
- if (strm == NULL ||
- blockSize100k < 1 || blockSize100k > 9 ||
- workFactor < 0 || workFactor > 250)
- return BZ_PARAM_ERROR;
-
- if (workFactor == 0) workFactor = 30;
- if (strm->bzalloc == NULL) strm->bzalloc = default_bzalloc;
- if (strm->bzfree == NULL) strm->bzfree = default_bzfree;
-
- s = BZALLOC( sizeof(EState) );
- if (s == NULL) return BZ_MEM_ERROR;
- s->strm = strm;
-
- s->arr1 = NULL;
- s->arr2 = NULL;
- s->ftab = NULL;
-
- n = 100000 * blockSize100k;
- s->arr1 = BZALLOC( n * sizeof(UInt32) );
- s->arr2 = BZALLOC( (n+BZ_N_OVERSHOOT) * sizeof(UInt32) );
- s->ftab = BZALLOC( 65537 * sizeof(UInt32) );
-
- if (s->arr1 == NULL || s->arr2 == NULL || s->ftab == NULL) {
- if (s->arr1 != NULL) BZFREE(s->arr1);
- if (s->arr2 != NULL) BZFREE(s->arr2);
- if (s->ftab != NULL) BZFREE(s->ftab);
- if (s != NULL) BZFREE(s);
- return BZ_MEM_ERROR;
- }
-
- s->blockNo = 0;
- s->state = BZ_S_INPUT;
- s->mode = BZ_M_RUNNING;
- s->combinedCRC = 0;
- s->blockSize100k = blockSize100k;
- s->nblockMAX = 100000 * blockSize100k - 19;
- s->verbosity = verbosity;
- s->workFactor = workFactor;
-
- s->block = (UChar*)s->arr2;
- s->mtfv = (UInt16*)s->arr1;
- s->zbits = NULL;
- s->ptr = (UInt32*)s->arr1;
-
- strm->state = s;
- strm->total_in_lo32 = 0;
- strm->total_in_hi32 = 0;
- strm->total_out_lo32 = 0;
- strm->total_out_hi32 = 0;
- init_RL ( s );
- prepare_new_block ( s );
- return BZ_OK;
-}
-
-
-/*---------------------------------------------------*/
-static
-void add_pair_to_block ( EState* s )
-{
- Int32 i;
- UChar ch = (UChar)(s->state_in_ch);
- for (i = 0; i < s->state_in_len; i++) {
- BZ_UPDATE_CRC( s->blockCRC, ch );
- }
- s->inUse[s->state_in_ch] = True;
- switch (s->state_in_len) {
- case 1:
- s->block[s->nblock] = (UChar)ch; s->nblock++;
- break;
- case 2:
- s->block[s->nblock] = (UChar)ch; s->nblock++;
- s->block[s->nblock] = (UChar)ch; s->nblock++;
- break;
- case 3:
- s->block[s->nblock] = (UChar)ch; s->nblock++;
- s->block[s->nblock] = (UChar)ch; s->nblock++;
- s->block[s->nblock] = (UChar)ch; s->nblock++;
- break;
- default:
- s->inUse[s->state_in_len-4] = True;
- s->block[s->nblock] = (UChar)ch; s->nblock++;
- s->block[s->nblock] = (UChar)ch; s->nblock++;
- s->block[s->nblock] = (UChar)ch; s->nblock++;
- s->block[s->nblock] = (UChar)ch; s->nblock++;
- s->block[s->nblock] = ((UChar)(s->state_in_len-4));
- s->nblock++;
- break;
- }
-}
-
-
-/*---------------------------------------------------*/
-static
-void flush_RL ( EState* s )
-{
- if (s->state_in_ch < 256) add_pair_to_block ( s );
- init_RL ( s );
-}
-
-
-/*---------------------------------------------------*/
-#define ADD_CHAR_TO_BLOCK(zs,zchh0) \
-{ \
- UInt32 zchh = (UInt32)(zchh0); \
- /*-- fast track the common case --*/ \
- if (zchh != zs->state_in_ch && \
- zs->state_in_len == 1) { \
- UChar ch = (UChar)(zs->state_in_ch); \
- BZ_UPDATE_CRC( zs->blockCRC, ch ); \
- zs->inUse[zs->state_in_ch] = True; \
- zs->block[zs->nblock] = (UChar)ch; \
- zs->nblock++; \
- zs->state_in_ch = zchh; \
- } \
- else \
- /*-- general, uncommon cases --*/ \
- if (zchh != zs->state_in_ch || \
- zs->state_in_len == 255) { \
- if (zs->state_in_ch < 256) \
- add_pair_to_block ( zs ); \
- zs->state_in_ch = zchh; \
- zs->state_in_len = 1; \
- } else { \
- zs->state_in_len++; \
- } \
-}
-
-
-/*---------------------------------------------------*/
-static
-Bool copy_input_until_stop ( EState* s )
-{
- Bool progress_in = False;
-
- if (s->mode == BZ_M_RUNNING) {
-
- /*-- fast track the common case --*/
- while (True) {
- /*-- block full? --*/
- if (s->nblock >= s->nblockMAX) break;
- /*-- no input? --*/
- if (s->strm->avail_in == 0) break;
- progress_in = True;
- ADD_CHAR_TO_BLOCK ( s, (UInt32)(*((UChar*)(s->strm->next_in))) );
- s->strm->next_in++;
- s->strm->avail_in--;
- s->strm->total_in_lo32++;
- if (s->strm->total_in_lo32 == 0) s->strm->total_in_hi32++;
- }
-
- } else {
-
- /*-- general, uncommon case --*/
- while (True) {
- /*-- block full? --*/
- if (s->nblock >= s->nblockMAX) break;
- /*-- no input? --*/
- if (s->strm->avail_in == 0) break;
- /*-- flush/finish end? --*/
- if (s->avail_in_expect == 0) break;
- progress_in = True;
- ADD_CHAR_TO_BLOCK ( s, (UInt32)(*((UChar*)(s->strm->next_in))) );
- s->strm->next_in++;
- s->strm->avail_in--;
- s->strm->total_in_lo32++;
- if (s->strm->total_in_lo32 == 0) s->strm->total_in_hi32++;
- s->avail_in_expect--;
- }
- }
- return progress_in;
-}
-
-
-/*---------------------------------------------------*/
-static
-Bool copy_output_until_stop ( EState* s )
-{
- Bool progress_out = False;
-
- while (True) {
-
- /*-- no output space? --*/
- if (s->strm->avail_out == 0) break;
-
- /*-- block done? --*/
- if (s->state_out_pos >= s->numZ) break;
-
- progress_out = True;
- *(s->strm->next_out) = s->zbits[s->state_out_pos];
- s->state_out_pos++;
- s->strm->avail_out--;
- s->strm->next_out++;
- s->strm->total_out_lo32++;
- if (s->strm->total_out_lo32 == 0) s->strm->total_out_hi32++;
- }
-
- return progress_out;
-}
-
-
-/*---------------------------------------------------*/
-static
-Bool handle_compress ( bz_stream* strm )
-{
- Bool progress_in = False;
- Bool progress_out = False;
- EState* s = strm->state;
-
- while (True) {
-
- if (s->state == BZ_S_OUTPUT) {
- progress_out |= copy_output_until_stop ( s );
- if (s->state_out_pos < s->numZ) break;
- if (s->mode == BZ_M_FINISHING &&
- s->avail_in_expect == 0 &&
- isempty_RL(s)) break;
- prepare_new_block ( s );
- s->state = BZ_S_INPUT;
- if (s->mode == BZ_M_FLUSHING &&
- s->avail_in_expect == 0 &&
- isempty_RL(s)) break;
- }
-
- if (s->state == BZ_S_INPUT) {
- progress_in |= copy_input_until_stop ( s );
- if (s->mode != BZ_M_RUNNING && s->avail_in_expect == 0) {
- flush_RL ( s );
- BZ2_compressBlock ( s, (Bool)(s->mode == BZ_M_FINISHING) );
- s->state = BZ_S_OUTPUT;
- }
- else
- if (s->nblock >= s->nblockMAX) {
- BZ2_compressBlock ( s, False );
- s->state = BZ_S_OUTPUT;
- }
- else
- if (s->strm->avail_in == 0) {
- break;
- }
- }
-
- }
-
- return progress_in || progress_out;
-}
-
-
-/*---------------------------------------------------*/
-int BZ_API(BZ2_bzCompress) ( bz_stream *strm, int action )
-{
- Bool progress;
- EState* s;
- if (strm == NULL) return BZ_PARAM_ERROR;
- s = strm->state;
- if (s == NULL) return BZ_PARAM_ERROR;
- if (s->strm != strm) return BZ_PARAM_ERROR;
-
- preswitch:
- switch (s->mode) {
-
- case BZ_M_IDLE:
- return BZ_SEQUENCE_ERROR;
-
- case BZ_M_RUNNING:
- if (action == BZ_RUN) {
- progress = handle_compress ( strm );
- return progress ? BZ_RUN_OK : BZ_PARAM_ERROR;
- }
- else
- if (action == BZ_FLUSH) {
- s->avail_in_expect = strm->avail_in;
- s->mode = BZ_M_FLUSHING;
- goto preswitch;
- }
- else
- if (action == BZ_FINISH) {
- s->avail_in_expect = strm->avail_in;
- s->mode = BZ_M_FINISHING;
- goto preswitch;
- }
- else
- return BZ_PARAM_ERROR;
-
- case BZ_M_FLUSHING:
- if (action != BZ_FLUSH) return BZ_SEQUENCE_ERROR;
- if (s->avail_in_expect != s->strm->avail_in)
- return BZ_SEQUENCE_ERROR;
- progress = handle_compress ( strm );
- if (s->avail_in_expect > 0 || !isempty_RL(s) ||
- s->state_out_pos < s->numZ) return BZ_FLUSH_OK;
- s->mode = BZ_M_RUNNING;
- return BZ_RUN_OK;
-
- case BZ_M_FINISHING:
- if (action != BZ_FINISH) return BZ_SEQUENCE_ERROR;
- if (s->avail_in_expect != s->strm->avail_in)
- return BZ_SEQUENCE_ERROR;
- progress = handle_compress ( strm );
- if (!progress) return BZ_SEQUENCE_ERROR;
- if (s->avail_in_expect > 0 || !isempty_RL(s) ||
- s->state_out_pos < s->numZ) return BZ_FINISH_OK;
- s->mode = BZ_M_IDLE;
- return BZ_STREAM_END;
- }
- return BZ_OK; /*--not reached--*/
-}
-
-
-/*---------------------------------------------------*/
-int BZ_API(BZ2_bzCompressEnd) ( bz_stream *strm )
-{
- EState* s;
- if (strm == NULL) return BZ_PARAM_ERROR;
- s = strm->state;
- if (s == NULL) return BZ_PARAM_ERROR;
- if (s->strm != strm) return BZ_PARAM_ERROR;
-
- if (s->arr1 != NULL) BZFREE(s->arr1);
- if (s->arr2 != NULL) BZFREE(s->arr2);
- if (s->ftab != NULL) BZFREE(s->ftab);
- BZFREE(strm->state);
-
- strm->state = NULL;
-
- return BZ_OK;
-}
-
-#endif // BZ_DECOMPRESS_ONLY
-
-/*---------------------------------------------------*/
-/*--- Decompression stuff ---*/
-/*---------------------------------------------------*/
-
-/*---------------------------------------------------*/
-int BZ_API(BZ2_bzDecompressInit)
- ( bz_stream* strm,
- int verbosity,
- int small )
-{
- DState* s;
-
- if (!bz_config_ok()) return BZ_CONFIG_ERROR;
-
- if (strm == NULL) return BZ_PARAM_ERROR;
- if (small != 0 && small != 1) return BZ_PARAM_ERROR;
- if (verbosity < 0 || verbosity > 4) return BZ_PARAM_ERROR;
-
- if (strm->bzalloc == NULL) strm->bzalloc = default_bzalloc;
- if (strm->bzfree == NULL) strm->bzfree = default_bzfree;
-
- s = BZALLOC( sizeof(DState) );
- if (s == NULL) return BZ_MEM_ERROR;
- s->strm = strm;
- strm->state = s;
- s->state = BZ_X_MAGIC_1;
- s->bsLive = 0;
- s->bsBuff = 0;
- s->calculatedCombinedCRC = 0;
- strm->total_in_lo32 = 0;
- strm->total_in_hi32 = 0;
- strm->total_out_lo32 = 0;
- strm->total_out_hi32 = 0;
- s->smallDecompress = (Bool)small;
- s->ll4 = NULL;
- s->ll16 = NULL;
- s->tt = NULL;
- s->currBlockNo = 0;
- s->verbosity = verbosity;
-
- return BZ_OK;
-}
-
-#ifndef BZ_DECOMPRESS_ONLY
-
-/*---------------------------------------------------*/
-/* Return True iff data corruption is discovered.
- Returns False if there is no problem.
-*/
-static
-Bool unRLE_obuf_to_output_FAST ( DState* s )
-{
- UChar k1;
-
- if (s->blockRandomised) {
-
- while (True) {
- /* try to finish existing run */
- while (True) {
- if (s->strm->avail_out == 0) return False;
- if (s->state_out_len == 0) break;
- *( (UChar*)(s->strm->next_out) ) = s->state_out_ch;
- BZ_UPDATE_CRC ( s->calculatedBlockCRC, s->state_out_ch );
- s->state_out_len--;
- s->strm->next_out++;
- s->strm->avail_out--;
- s->strm->total_out_lo32++;
- if (s->strm->total_out_lo32 == 0) s->strm->total_out_hi32++;
- }
-
- /* can a new run be started? */
- if (s->nblock_used == s->save_nblock+1) return False;
-
- /* Only caused by corrupt data stream? */
- if (s->nblock_used > s->save_nblock+1)
- return True;
-
- s->state_out_len = 1;
- s->state_out_ch = s->k0;
- BZ_GET_FAST(k1); BZ_RAND_UPD_MASK;
- k1 ^= BZ_RAND_MASK; s->nblock_used++;
- if (s->nblock_used == s->save_nblock+1) continue;
- if (k1 != s->k0) { s->k0 = k1; continue; };
-
- s->state_out_len = 2;
- BZ_GET_FAST(k1); BZ_RAND_UPD_MASK;
- k1 ^= BZ_RAND_MASK; s->nblock_used++;
- if (s->nblock_used == s->save_nblock+1) continue;
- if (k1 != s->k0) { s->k0 = k1; continue; };
-
- s->state_out_len = 3;
- BZ_GET_FAST(k1); BZ_RAND_UPD_MASK;
- k1 ^= BZ_RAND_MASK; s->nblock_used++;
- if (s->nblock_used == s->save_nblock+1) continue;
- if (k1 != s->k0) { s->k0 = k1; continue; };
-
- BZ_GET_FAST(k1); BZ_RAND_UPD_MASK;
- k1 ^= BZ_RAND_MASK; s->nblock_used++;
- s->state_out_len = ((Int32)k1) + 4;
- BZ_GET_FAST(s->k0); BZ_RAND_UPD_MASK;
- s->k0 ^= BZ_RAND_MASK; s->nblock_used++;
- }
-
- } else {
-
- /* restore */
- UInt32 c_calculatedBlockCRC = s->calculatedBlockCRC;
- UChar c_state_out_ch = s->state_out_ch;
- Int32 c_state_out_len = s->state_out_len;
- Int32 c_nblock_used = s->nblock_used;
- Int32 c_k0 = s->k0;
- UInt32* c_tt = s->tt;
- UInt32 c_tPos = s->tPos;
- char* cs_next_out = s->strm->next_out;
- unsigned int cs_avail_out = s->strm->avail_out;
- Int32 ro_blockSize100k = s->blockSize100k;
- /* end restore */
-
- UInt32 avail_out_INIT = cs_avail_out;
- Int32 s_save_nblockPP = s->save_nblock+1;
- unsigned int total_out_lo32_old;
-
- while (True) {
-
- /* try to finish existing run */
- if (c_state_out_len > 0) {
- while (True) {
- if (cs_avail_out == 0) goto return_notr;
- if (c_state_out_len == 1) break;
- *( (UChar*)(cs_next_out) ) = c_state_out_ch;
- BZ_UPDATE_CRC ( c_calculatedBlockCRC, c_state_out_ch );
- c_state_out_len--;
- cs_next_out++;
- cs_avail_out--;
- }
- s_state_out_len_eq_one:
- {
- if (cs_avail_out == 0) {
- c_state_out_len = 1; goto return_notr;
- };
- *( (UChar*)(cs_next_out) ) = c_state_out_ch;
- BZ_UPDATE_CRC ( c_calculatedBlockCRC, c_state_out_ch );
- cs_next_out++;
- cs_avail_out--;
- }
- }
- /* Only caused by corrupt data stream? */
- if (c_nblock_used > s_save_nblockPP)
- return True;
-
- /* can a new run be started? */
- if (c_nblock_used == s_save_nblockPP) {
- c_state_out_len = 0; goto return_notr;
- };
- c_state_out_ch = c_k0;
- BZ_GET_FAST_C(k1); c_nblock_used++;
- if (k1 != c_k0) {
- c_k0 = k1; goto s_state_out_len_eq_one;
- };
- if (c_nblock_used == s_save_nblockPP)
- goto s_state_out_len_eq_one;
-
- c_state_out_len = 2;
- BZ_GET_FAST_C(k1); c_nblock_used++;
- if (c_nblock_used == s_save_nblockPP) continue;
- if (k1 != c_k0) { c_k0 = k1; continue; };
-
- c_state_out_len = 3;
- BZ_GET_FAST_C(k1); c_nblock_used++;
- if (c_nblock_used == s_save_nblockPP) continue;
- if (k1 != c_k0) { c_k0 = k1; continue; };
-
- BZ_GET_FAST_C(k1); c_nblock_used++;
- c_state_out_len = ((Int32)k1) + 4;
- BZ_GET_FAST_C(c_k0); c_nblock_used++;
- }
-
- return_notr:
- total_out_lo32_old = s->strm->total_out_lo32;
- s->strm->total_out_lo32 += (avail_out_INIT - cs_avail_out);
- if (s->strm->total_out_lo32 < total_out_lo32_old)
- s->strm->total_out_hi32++;
-
- /* save */
- s->calculatedBlockCRC = c_calculatedBlockCRC;
- s->state_out_ch = c_state_out_ch;
- s->state_out_len = c_state_out_len;
- s->nblock_used = c_nblock_used;
- s->k0 = c_k0;
- s->tt = c_tt;
- s->tPos = c_tPos;
- s->strm->next_out = cs_next_out;
- s->strm->avail_out = cs_avail_out;
- /* end save */
- }
- return False;
-}
-
-#endif // BZ_DECOMPRESS_ONLY
-
-
-/*---------------------------------------------------*/
-__inline__ Int32 BZ2_indexIntoF ( Int32 indx, Int32 *cftab )
-{
- Int32 nb, na, mid;
- nb = 0;
- na = 256;
- do {
- mid = (nb + na) >> 1;
- if (indx >= cftab[mid]) nb = mid; else na = mid;
- }
- while (na - nb != 1);
- return nb;
-}
-
-
-/*---------------------------------------------------*/
-/* Return True iff data corruption is discovered.
- Returns False if there is no problem.
-*/
-static
-Bool unRLE_obuf_to_output_SMALL ( DState* s )
-{
- UChar k1;
-
- if (s->blockRandomised) {
-
- while (True) {
- /* try to finish existing run */
- while (True) {
- if (s->strm->avail_out == 0) return False;
- if (s->state_out_len == 0) break;
- *( (UChar*)(s->strm->next_out) ) = s->state_out_ch;
- BZ_UPDATE_CRC ( s->calculatedBlockCRC, s->state_out_ch );
- s->state_out_len--;
- s->strm->next_out++;
- s->strm->avail_out--;
- s->strm->total_out_lo32++;
- if (s->strm->total_out_lo32 == 0) s->strm->total_out_hi32++;
- }
-
- /* can a new run be started? */
- if (s->nblock_used == s->save_nblock+1) return False;
-
- /* Only caused by corrupt data stream? */
- if (s->nblock_used > s->save_nblock+1)
- return True;
-
- s->state_out_len = 1;
- s->state_out_ch = s->k0;
- BZ_GET_SMALL(k1); BZ_RAND_UPD_MASK;
- k1 ^= BZ_RAND_MASK; s->nblock_used++;
- if (s->nblock_used == s->save_nblock+1) continue;
- if (k1 != s->k0) { s->k0 = k1; continue; };
-
- s->state_out_len = 2;
- BZ_GET_SMALL(k1); BZ_RAND_UPD_MASK;
- k1 ^= BZ_RAND_MASK; s->nblock_used++;
- if (s->nblock_used == s->save_nblock+1) continue;
- if (k1 != s->k0) { s->k0 = k1; continue; };
-
- s->state_out_len = 3;
- BZ_GET_SMALL(k1); BZ_RAND_UPD_MASK;
- k1 ^= BZ_RAND_MASK; s->nblock_used++;
- if (s->nblock_used == s->save_nblock+1) continue;
- if (k1 != s->k0) { s->k0 = k1; continue; };
-
- BZ_GET_SMALL(k1); BZ_RAND_UPD_MASK;
- k1 ^= BZ_RAND_MASK; s->nblock_used++;
- s->state_out_len = ((Int32)k1) + 4;
- BZ_GET_SMALL(s->k0); BZ_RAND_UPD_MASK;
- s->k0 ^= BZ_RAND_MASK; s->nblock_used++;
- }
-
- } else {
-
- while (True) {
- /* try to finish existing run */
- while (True) {
- if (s->strm->avail_out == 0) return False;
- if (s->state_out_len == 0) break;
- *( (UChar*)(s->strm->next_out) ) = s->state_out_ch;
- BZ_UPDATE_CRC ( s->calculatedBlockCRC, s->state_out_ch );
- s->state_out_len--;
- s->strm->next_out++;
- s->strm->avail_out--;
- s->strm->total_out_lo32++;
- if (s->strm->total_out_lo32 == 0) s->strm->total_out_hi32++;
- }
-
- /* can a new run be started? */
- if (s->nblock_used == s->save_nblock+1) return False;
-
- /* Only caused by corrupt data stream? */
- if (s->nblock_used > s->save_nblock+1)
- return True;
-
- s->state_out_len = 1;
- s->state_out_ch = s->k0;
- BZ_GET_SMALL(k1); s->nblock_used++;
- if (s->nblock_used == s->save_nblock+1) continue;
- if (k1 != s->k0) { s->k0 = k1; continue; };
-
- s->state_out_len = 2;
- BZ_GET_SMALL(k1); s->nblock_used++;
- if (s->nblock_used == s->save_nblock+1) continue;
- if (k1 != s->k0) { s->k0 = k1; continue; };
-
- s->state_out_len = 3;
- BZ_GET_SMALL(k1); s->nblock_used++;
- if (s->nblock_used == s->save_nblock+1) continue;
- if (k1 != s->k0) { s->k0 = k1; continue; };
-
- BZ_GET_SMALL(k1); s->nblock_used++;
- s->state_out_len = ((Int32)k1) + 4;
- BZ_GET_SMALL(s->k0); s->nblock_used++;
- }
-
- }
-}
-
-
-/*---------------------------------------------------*/
-int BZ_API(BZ2_bzDecompress) ( bz_stream *strm )
-{
- Bool corrupt;
- DState* s;
- if (strm == NULL) return BZ_PARAM_ERROR;
- s = strm->state;
- if (s == NULL) return BZ_PARAM_ERROR;
- if (s->strm != strm) return BZ_PARAM_ERROR;
-
- while (True) {
- if (s->state == BZ_X_IDLE) return BZ_SEQUENCE_ERROR;
- if (s->state == BZ_X_OUTPUT) {
-#ifndef BZ_DECOMPRESS_ONLY
- if (s->smallDecompress)
- corrupt = unRLE_obuf_to_output_SMALL ( s ); else
- corrupt = unRLE_obuf_to_output_FAST ( s );
- if (corrupt) return BZ_DATA_ERROR;
-#else
- corrupt = unRLE_obuf_to_output_SMALL ( s );
- if (corrupt) return BZ_DATA_ERROR;
-#endif
- if (s->nblock_used == s->save_nblock+1 && s->state_out_len == 0) {
- BZ_FINALISE_CRC ( s->calculatedBlockCRC );
- if (s->verbosity >= 3)
- VPrintf2 ( " {0x%08x, 0x%08x}", s->storedBlockCRC,
- s->calculatedBlockCRC );
- if (s->verbosity >= 2) VPrintf0 ( "]" );
- if (s->calculatedBlockCRC != s->storedBlockCRC)
- return BZ_DATA_ERROR;
- s->calculatedCombinedCRC
- = (s->calculatedCombinedCRC << 1) |
- (s->calculatedCombinedCRC >> 31);
- s->calculatedCombinedCRC ^= s->calculatedBlockCRC;
- s->state = BZ_X_BLKHDR_1;
- } else {
- return BZ_OK;
- }
- }
- if (s->state >= BZ_X_MAGIC_1) {
- Int32 r = BZ2_decompress ( s );
- if (r == BZ_STREAM_END) {
- if (s->verbosity >= 3)
- VPrintf2 ( "\n combined CRCs: stored = 0x%08x, computed = 0x%08x",
- s->storedCombinedCRC, s->calculatedCombinedCRC );
- if (s->calculatedCombinedCRC != s->storedCombinedCRC)
- return BZ_DATA_ERROR;
- return r;
- }
- if (s->state != BZ_X_OUTPUT) return r;
- }
- }
-
- AssertH ( 0, 6001 );
-
- return 0; /*NOTREACHED*/
-}
-
-
-/*---------------------------------------------------*/
-int BZ_API(BZ2_bzDecompressEnd) ( bz_stream *strm )
-{
- DState* s;
- if (strm == NULL) return BZ_PARAM_ERROR;
- s = strm->state;
- if (s == NULL) return BZ_PARAM_ERROR;
- if (s->strm != strm) return BZ_PARAM_ERROR;
-
- if (s->tt != NULL) BZFREE(s->tt);
- if (s->ll16 != NULL) BZFREE(s->ll16);
- if (s->ll4 != NULL) BZFREE(s->ll4);
-
- BZFREE(strm->state);
- strm->state = NULL;
-
- return BZ_OK;
-}
-
-
-#ifndef BZ_NO_STDIO
-/*---------------------------------------------------*/
-/*--- File I/O stuff ---*/
-/*---------------------------------------------------*/
-
-#define BZ_SETERR(eee) \
-{ \
- if (bzerror != NULL) *bzerror = eee; \
- if (bzf != NULL) bzf->lastErr = eee; \
-}
-
-typedef
- struct {
- FILE* handle;
- Char buf[BZ_MAX_UNUSED];
- Int32 bufN;
- Bool writing;
- bz_stream strm;
- Int32 lastErr;
- Bool initialisedOk;
- }
- bzFile;
-
-
-/*---------------------------------------------*/
-static Bool myfeof ( FILE* f )
-{
- Int32 c = fgetc ( f );
- if (c == EOF) return True;
- ungetc ( c, f );
- return False;
-}
-
-
-/*---------------------------------------------------*/
-BZFILE* BZ_API(BZ2_bzWriteOpen)
- ( int* bzerror,
- FILE* f,
- int blockSize100k,
- int verbosity,
- int workFactor )
-{
- Int32 ret;
- bzFile* bzf = NULL;
-
- BZ_SETERR(BZ_OK);
-
- if (f == NULL ||
- (blockSize100k < 1 || blockSize100k > 9) ||
- (workFactor < 0 || workFactor > 250) ||
- (verbosity < 0 || verbosity > 4))
- { BZ_SETERR(BZ_PARAM_ERROR); return NULL; };
-
- if (ferror(f))
- { BZ_SETERR(BZ_IO_ERROR); return NULL; };
-
- bzf = malloc ( sizeof(bzFile) );
- if (bzf == NULL)
- { BZ_SETERR(BZ_MEM_ERROR); return NULL; };
-
- BZ_SETERR(BZ_OK);
- bzf->initialisedOk = False;
- bzf->bufN = 0;
- bzf->handle = f;
- bzf->writing = True;
- bzf->strm.bzalloc = NULL;
- bzf->strm.bzfree = NULL;
- bzf->strm.opaque = NULL;
-
- if (workFactor == 0) workFactor = 30;
- ret = BZ2_bzCompressInit ( &(bzf->strm), blockSize100k,
- verbosity, workFactor );
- if (ret != BZ_OK)
- { BZ_SETERR(ret); free(bzf); return NULL; };
-
- bzf->strm.avail_in = 0;
- bzf->initialisedOk = True;
- return bzf;
-}
-
-
-
-/*---------------------------------------------------*/
-void BZ_API(BZ2_bzWrite)
- ( int* bzerror,
- BZFILE* b,
- void* buf,
- int len )
-{
- Int32 n, n2, ret;
- bzFile* bzf = (bzFile*)b;
-
- BZ_SETERR(BZ_OK);
- if (bzf == NULL || buf == NULL || len < 0)
- { BZ_SETERR(BZ_PARAM_ERROR); return; };
- if (!(bzf->writing))
- { BZ_SETERR(BZ_SEQUENCE_ERROR); return; };
- if (ferror(bzf->handle))
- { BZ_SETERR(BZ_IO_ERROR); return; };
-
- if (len == 0)
- { BZ_SETERR(BZ_OK); return; };
-
- bzf->strm.avail_in = len;
- bzf->strm.next_in = buf;
-
- while (True) {
- bzf->strm.avail_out = BZ_MAX_UNUSED;
- bzf->strm.next_out = bzf->buf;
- ret = BZ2_bzCompress ( &(bzf->strm), BZ_RUN );
- if (ret != BZ_RUN_OK)
- { BZ_SETERR(ret); return; };
-
- if (bzf->strm.avail_out < BZ_MAX_UNUSED) {
- n = BZ_MAX_UNUSED - bzf->strm.avail_out;
- n2 = fwrite ( (void*)(bzf->buf), sizeof(UChar),
- n, bzf->handle );
- if (n != n2 || ferror(bzf->handle))
- { BZ_SETERR(BZ_IO_ERROR); return; };
- }
-
- if (bzf->strm.avail_in == 0)
- { BZ_SETERR(BZ_OK); return; };
- }
-}
-
-
-/*---------------------------------------------------*/
-void BZ_API(BZ2_bzWriteClose)
- ( int* bzerror,
- BZFILE* b,
- int abandon,
- unsigned int* nbytes_in,
- unsigned int* nbytes_out )
-{
- BZ2_bzWriteClose64 ( bzerror, b, abandon,
- nbytes_in, NULL, nbytes_out, NULL );
-}
-
-
-void BZ_API(BZ2_bzWriteClose64)
- ( int* bzerror,
- BZFILE* b,
- int abandon,
- unsigned int* nbytes_in_lo32,
- unsigned int* nbytes_in_hi32,
- unsigned int* nbytes_out_lo32,
- unsigned int* nbytes_out_hi32 )
-{
- Int32 n, n2, ret;
- bzFile* bzf = (bzFile*)b;
-
- if (bzf == NULL)
- { BZ_SETERR(BZ_OK); return; };
- if (!(bzf->writing))
- { BZ_SETERR(BZ_SEQUENCE_ERROR); return; };
- if (ferror(bzf->handle))
- { BZ_SETERR(BZ_IO_ERROR); return; };
-
- if (nbytes_in_lo32 != NULL) *nbytes_in_lo32 = 0;
- if (nbytes_in_hi32 != NULL) *nbytes_in_hi32 = 0;
- if (nbytes_out_lo32 != NULL) *nbytes_out_lo32 = 0;
- if (nbytes_out_hi32 != NULL) *nbytes_out_hi32 = 0;
-
- if ((!abandon) && bzf->lastErr == BZ_OK) {
- while (True) {
- bzf->strm.avail_out = BZ_MAX_UNUSED;
- bzf->strm.next_out = bzf->buf;
- ret = BZ2_bzCompress ( &(bzf->strm), BZ_FINISH );
- if (ret != BZ_FINISH_OK && ret != BZ_STREAM_END)
- { BZ_SETERR(ret); return; };
-
- if (bzf->strm.avail_out < BZ_MAX_UNUSED) {
- n = BZ_MAX_UNUSED - bzf->strm.avail_out;
- n2 = fwrite ( (void*)(bzf->buf), sizeof(UChar),
- n, bzf->handle );
- if (n != n2 || ferror(bzf->handle))
- { BZ_SETERR(BZ_IO_ERROR); return; };
- }
-
- if (ret == BZ_STREAM_END) break;
- }
- }
-
- if ( !abandon && !ferror ( bzf->handle ) ) {
- fflush ( bzf->handle );
- if (ferror(bzf->handle))
- { BZ_SETERR(BZ_IO_ERROR); return; };
- }
-
- if (nbytes_in_lo32 != NULL)
- *nbytes_in_lo32 = bzf->strm.total_in_lo32;
- if (nbytes_in_hi32 != NULL)
- *nbytes_in_hi32 = bzf->strm.total_in_hi32;
- if (nbytes_out_lo32 != NULL)
- *nbytes_out_lo32 = bzf->strm.total_out_lo32;
- if (nbytes_out_hi32 != NULL)
- *nbytes_out_hi32 = bzf->strm.total_out_hi32;
-
- BZ_SETERR(BZ_OK);
- BZ2_bzCompressEnd ( &(bzf->strm) );
- free ( bzf );
-}
-
-
-/*---------------------------------------------------*/
-BZFILE* BZ_API(BZ2_bzReadOpen)
- ( int* bzerror,
- FILE* f,
- int verbosity,
- int small,
- void* unused,
- int nUnused )
-{
- bzFile* bzf = NULL;
- int ret;
-
- BZ_SETERR(BZ_OK);
-
- if (f == NULL ||
- (small != 0 && small != 1) ||
- (verbosity < 0 || verbosity > 4) ||
- (unused == NULL && nUnused != 0) ||
- (unused != NULL && (nUnused < 0 || nUnused > BZ_MAX_UNUSED)))
- { BZ_SETERR(BZ_PARAM_ERROR); return NULL; };
-
- if (ferror(f))
- { BZ_SETERR(BZ_IO_ERROR); return NULL; };
-
- bzf = malloc ( sizeof(bzFile) );
- if (bzf == NULL)
- { BZ_SETERR(BZ_MEM_ERROR); return NULL; };
-
- BZ_SETERR(BZ_OK);
-
- bzf->initialisedOk = False;
- bzf->handle = f;
- bzf->bufN = 0;
- bzf->writing = False;
- bzf->strm.bzalloc = NULL;
- bzf->strm.bzfree = NULL;
- bzf->strm.opaque = NULL;
-
- while (nUnused > 0) {
- bzf->buf[bzf->bufN] = *((UChar*)(unused)); bzf->bufN++;
- unused = ((void*)( 1 + ((UChar*)(unused)) ));
- nUnused--;
- }
-
- ret = BZ2_bzDecompressInit ( &(bzf->strm), verbosity, small );
- if (ret != BZ_OK)
- { BZ_SETERR(ret); free(bzf); return NULL; };
-
- bzf->strm.avail_in = bzf->bufN;
- bzf->strm.next_in = bzf->buf;
-
- bzf->initialisedOk = True;
- return bzf;
-}
-
-
-/*---------------------------------------------------*/
-void BZ_API(BZ2_bzReadClose) ( int *bzerror, BZFILE *b )
-{
- bzFile* bzf = (bzFile*)b;
-
- BZ_SETERR(BZ_OK);
- if (bzf == NULL)
- { BZ_SETERR(BZ_OK); return; };
-
- if (bzf->writing)
- { BZ_SETERR(BZ_SEQUENCE_ERROR); return; };
-
- if (bzf->initialisedOk)
- (void)BZ2_bzDecompressEnd ( &(bzf->strm) );
- free ( bzf );
-}
-
-
-/*---------------------------------------------------*/
-int BZ_API(BZ2_bzRead)
- ( int* bzerror,
- BZFILE* b,
- void* buf,
- int len )
-{
- Int32 n, ret;
- bzFile* bzf = (bzFile*)b;
-
- BZ_SETERR(BZ_OK);
-
- if (bzf == NULL || buf == NULL || len < 0)
- { BZ_SETERR(BZ_PARAM_ERROR); return 0; };
-
- if (bzf->writing)
- { BZ_SETERR(BZ_SEQUENCE_ERROR); return 0; };
-
- if (len == 0)
- { BZ_SETERR(BZ_OK); return 0; };
-
- bzf->strm.avail_out = len;
- bzf->strm.next_out = buf;
-
- while (True) {
-
- if (ferror(bzf->handle))
- { BZ_SETERR(BZ_IO_ERROR); return 0; };
-
- if (bzf->strm.avail_in == 0 && !myfeof(bzf->handle)) {
- n = fread ( bzf->buf, sizeof(UChar),
- BZ_MAX_UNUSED, bzf->handle );
- if (ferror(bzf->handle))
- { BZ_SETERR(BZ_IO_ERROR); return 0; };
- bzf->bufN = n;
- bzf->strm.avail_in = bzf->bufN;
- bzf->strm.next_in = bzf->buf;
- }
-
- ret = BZ2_bzDecompress ( &(bzf->strm) );
-
- if (ret != BZ_OK && ret != BZ_STREAM_END)
- { BZ_SETERR(ret); return 0; };
-
- if (ret == BZ_OK && myfeof(bzf->handle) &&
- bzf->strm.avail_in == 0 && bzf->strm.avail_out > 0)
- { BZ_SETERR(BZ_UNEXPECTED_EOF); return 0; };
-
- if (ret == BZ_STREAM_END)
- { BZ_SETERR(BZ_STREAM_END);
- return len - bzf->strm.avail_out; };
- if (bzf->strm.avail_out == 0)
- { BZ_SETERR(BZ_OK); return len; };
-
- }
-
- return 0; /*not reached*/
-}
-
-
-/*---------------------------------------------------*/
-void BZ_API(BZ2_bzReadGetUnused)
- ( int* bzerror,
- BZFILE* b,
- void** unused,
- int* nUnused )
-{
- bzFile* bzf = (bzFile*)b;
- if (bzf == NULL)
- { BZ_SETERR(BZ_PARAM_ERROR); return; };
- if (bzf->lastErr != BZ_STREAM_END)
- { BZ_SETERR(BZ_SEQUENCE_ERROR); return; };
- if (unused == NULL || nUnused == NULL)
- { BZ_SETERR(BZ_PARAM_ERROR); return; };
-
- BZ_SETERR(BZ_OK);
- *nUnused = bzf->strm.avail_in;
- *unused = bzf->strm.next_in;
-}
-#endif
-
-#ifndef BZ_DECOMPRESS_ONLY
-
-/*---------------------------------------------------*/
-/*--- Misc convenience stuff ---*/
-/*---------------------------------------------------*/
-
-/*---------------------------------------------------*/
-int BZ_API(BZ2_bzBuffToBuffCompress)
- ( char* dest,
- unsigned int* destLen,
- char* source,
- unsigned int sourceLen,
- int blockSize100k,
- int verbosity,
- int workFactor )
-{
- bz_stream strm;
- int ret;
-
- if (dest == NULL || destLen == NULL ||
- source == NULL ||
- blockSize100k < 1 || blockSize100k > 9 ||
- verbosity < 0 || verbosity > 4 ||
- workFactor < 0 || workFactor > 250)
- return BZ_PARAM_ERROR;
-
- if (workFactor == 0) workFactor = 30;
- strm.bzalloc = NULL;
- strm.bzfree = NULL;
- strm.opaque = NULL;
- ret = BZ2_bzCompressInit ( &strm, blockSize100k,
- verbosity, workFactor );
- if (ret != BZ_OK) return ret;
-
- strm.next_in = source;
- strm.next_out = dest;
- strm.avail_in = sourceLen;
- strm.avail_out = *destLen;
-
- ret = BZ2_bzCompress ( &strm, BZ_FINISH );
- if (ret == BZ_FINISH_OK) goto output_overflow;
- if (ret != BZ_STREAM_END) goto errhandler;
-
- /* normal termination */
- *destLen -= strm.avail_out;
- BZ2_bzCompressEnd ( &strm );
- return BZ_OK;
-
- output_overflow:
- BZ2_bzCompressEnd ( &strm );
- return BZ_OUTBUFF_FULL;
-
- errhandler:
- BZ2_bzCompressEnd ( &strm );
- return ret;
-}
-
-#endif // BZ_DECOMPRESS_0NLY
-
-/*---------------------------------------------------*/
-int BZ_API(BZ2_bzBuffToBuffDecompress)
- ( char* dest,
- unsigned int* destLen,
- char* source,
- unsigned int sourceLen,
- int small,
- int verbosity )
-{
- bz_stream strm;
- int ret;
-
- if (dest == NULL || destLen == NULL ||
- source == NULL ||
- (small != 0 && small != 1) ||
- verbosity < 0 || verbosity > 4)
- return BZ_PARAM_ERROR;
-
- strm.bzalloc = NULL;
- strm.bzfree = NULL;
- strm.opaque = NULL;
- ret = BZ2_bzDecompressInit ( &strm, verbosity, small );
- if (ret != BZ_OK) return ret;
-
- strm.next_in = source;
- strm.next_out = dest;
- strm.avail_in = sourceLen;
- strm.avail_out = *destLen;
-
- ret = BZ2_bzDecompress ( &strm );
- if (ret == BZ_OK) goto output_overflow_or_eof;
- if (ret != BZ_STREAM_END) goto errhandler;
-
- /* normal termination */
- *destLen -= strm.avail_out;
- BZ2_bzDecompressEnd ( &strm );
- return BZ_OK;
-
- output_overflow_or_eof:
- if (strm.avail_out > 0) {
- BZ2_bzDecompressEnd ( &strm );
- return BZ_UNEXPECTED_EOF;
- } else {
- BZ2_bzDecompressEnd ( &strm );
- return BZ_OUTBUFF_FULL;
- };
-
- errhandler:
- BZ2_bzDecompressEnd ( &strm );
- return ret;
-}
-
-
-/*---------------------------------------------------*/
-/*--
- Code contributed by Yoshioka Tsuneo (tsuneo@rr.iij4u.or.jp)
- to support better zlib compatibility.
- This code is not _officially_ part of libbzip2 (yet);
- I haven't tested it, documented it, or considered the
- threading-safeness of it.
- If this code breaks, please contact both Yoshioka and me.
---*/
-/*---------------------------------------------------*/
-
-/*---------------------------------------------------*/
-/*--
- return version like "0.9.5d, 4-Sept-1999".
---*/
-const char * BZ_API(BZ2_bzlibVersion)(void)
-{
- return BZ_VERSION;
-}
-
-
-#ifndef BZ_NO_STDIO
-/*---------------------------------------------------*/
-
-#if defined(_WIN32) || defined(OS2) || defined(MSDOS)
-# include <fcntl.h>
-# include <io.h>
-# define SET_BINARY_MODE(file) setmode(fileno(file),O_BINARY)
-#else
-# define SET_BINARY_MODE(file)
-#endif
-static
-BZFILE * bzopen_or_bzdopen
- ( const char *path, /* no use when bzdopen */
- int fd, /* no use when bzdopen */
- const char *mode,
- int open_mode) /* bzopen: 0, bzdopen:1 */
-{
- int bzerr;
- char unused[BZ_MAX_UNUSED];
- int blockSize100k = 9;
- int writing = 0;
- char mode2[10] = "";
- FILE *fp = NULL;
- BZFILE *bzfp = NULL;
- int verbosity = 0;
- int workFactor = 30;
- int smallMode = 0;
- int nUnused = 0;
-
- if (mode == NULL) return NULL;
- while (*mode) {
- switch (*mode) {
- case 'r':
- writing = 0; break;
- case 'w':
- writing = 1; break;
- case 's':
- smallMode = 1; break;
- default:
- if (isdigit((int)(*mode))) {
- blockSize100k = *mode-BZ_HDR_0;
- }
- }
- mode++;
- }
- strcat(mode2, writing ? "w" : "r" );
- strcat(mode2,"b"); /* binary mode */
-
- if (open_mode==0) {
- if (path==NULL || strcmp(path,"")==0) {
- fp = (writing ? stdout : stdin);
- SET_BINARY_MODE(fp);
- } else {
- fp = fopen(path,mode2);
- }
- } else {
-#ifdef BZ_STRICT_ANSI
- fp = NULL;
-#else
- fp = fdopen(fd,mode2);
-#endif
- }
- if (fp == NULL) return NULL;
-
- if (writing) {
- /* Guard against total chaos and anarchy -- JRS */
- if (blockSize100k < 1) blockSize100k = 1;
- if (blockSize100k > 9) blockSize100k = 9;
- bzfp = BZ2_bzWriteOpen(&bzerr,fp,blockSize100k,
- verbosity,workFactor);
- } else {
- bzfp = BZ2_bzReadOpen(&bzerr,fp,verbosity,smallMode,
- unused,nUnused);
- }
- if (bzfp == NULL) {
- if (fp != stdin && fp != stdout) fclose(fp);
- return NULL;
- }
- return bzfp;
-}
-
-
-/*---------------------------------------------------*/
-/*--
- open file for read or write.
- ex) bzopen("file","w9")
- case path="" or NULL => use stdin or stdout.
---*/
-BZFILE * BZ_API(BZ2_bzopen)
- ( const char *path,
- const char *mode )
-{
- return bzopen_or_bzdopen(path,-1,mode,/*bzopen*/0);
-}
-
-
-/*---------------------------------------------------*/
-BZFILE * BZ_API(BZ2_bzdopen)
- ( int fd,
- const char *mode )
-{
- return bzopen_or_bzdopen(NULL,fd,mode,/*bzdopen*/1);
-}
-
-
-/*---------------------------------------------------*/
-int BZ_API(BZ2_bzread) (BZFILE* b, void* buf, int len )
-{
- int bzerr, nread;
- if (((bzFile*)b)->lastErr == BZ_STREAM_END) return 0;
- nread = BZ2_bzRead(&bzerr,b,buf,len);
- if (bzerr == BZ_OK || bzerr == BZ_STREAM_END) {
- return nread;
- } else {
- return -1;
- }
-}
-
-
-/*---------------------------------------------------*/
-int BZ_API(BZ2_bzwrite) (BZFILE* b, void* buf, int len )
-{
- int bzerr;
-
- BZ2_bzWrite(&bzerr,b,buf,len);
- if(bzerr == BZ_OK){
- return len;
- }else{
- return -1;
- }
-}
-
-
-/*---------------------------------------------------*/
-int BZ_API(BZ2_bzflush) (BZFILE *b)
-{
- /* do nothing now... */
- return 0;
-}
-
-
-/*---------------------------------------------------*/
-void BZ_API(BZ2_bzclose) (BZFILE* b)
-{
- int bzerr;
- FILE *fp;
-
- if (b==NULL) {return;}
- fp = ((bzFile *)b)->handle;
- if(((bzFile*)b)->writing){
- BZ2_bzWriteClose(&bzerr,b,0,NULL,NULL);
- if(bzerr != BZ_OK){
- BZ2_bzWriteClose(NULL,b,1,NULL,NULL);
- }
- }else{
- BZ2_bzReadClose(&bzerr,b);
- }
- if(fp!=stdin && fp!=stdout){
- fclose(fp);
- }
-}
-
-
-/*---------------------------------------------------*/
-/*--
- return last error code
---*/
-static const char *bzerrorstrings[] = {
- "OK"
- ,"SEQUENCE_ERROR"
- ,"PARAM_ERROR"
- ,"MEM_ERROR"
- ,"DATA_ERROR"
- ,"DATA_ERROR_MAGIC"
- ,"IO_ERROR"
- ,"UNEXPECTED_EOF"
- ,"OUTBUFF_FULL"
- ,"CONFIG_ERROR"
- ,"???" /* for future */
- ,"???" /* for future */
- ,"???" /* for future */
- ,"???" /* for future */
- ,"???" /* for future */
- ,"???" /* for future */
-};
-
-
-const char * BZ_API(BZ2_bzerror) (BZFILE *b, int *errnum)
-{
- int err = ((bzFile *)b)->lastErr;
-
- if(err>0) err = 0;
- *errnum = err;
- return bzerrorstrings[err*-1];
-}
-#endif
-
-
-/*-------------------------------------------------------------*/
-/*--- end bzlib.c ---*/
-/*-------------------------------------------------------------*/
+++ /dev/null
-
-/*-------------------------------------------------------------*/
-/*--- Public header file for the library. ---*/
-/*--- bzlib.h ---*/
-/*-------------------------------------------------------------*/
-
-/* ------------------------------------------------------------------
- This file is part of bzip2/libbzip2, a program and library for
- lossless, block-sorting data compression.
-
- bzip2/libbzip2 version 1.0.6 of 6 September 2010
- Copyright (C) 1996-2010 Julian Seward <jseward@bzip.org>
-
- Please read the WARNING, DISCLAIMER and PATENTS sections in the
- README file.
-
- This program is released under the terms of the license contained
- in the file LICENSE.
- ------------------------------------------------------------------ */
-
-
-#ifndef _BZLIB_H
-#define _BZLIB_H
-
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-#define BZ_RUN 0
-#define BZ_FLUSH 1
-#define BZ_FINISH 2
-
-#define BZ_OK 0
-#define BZ_RUN_OK 1
-#define BZ_FLUSH_OK 2
-#define BZ_FINISH_OK 3
-#define BZ_STREAM_END 4
-#define BZ_SEQUENCE_ERROR (-1)
-#define BZ_PARAM_ERROR (-2)
-#define BZ_MEM_ERROR (-3)
-#define BZ_DATA_ERROR (-4)
-#define BZ_DATA_ERROR_MAGIC (-5)
-#define BZ_IO_ERROR (-6)
-#define BZ_UNEXPECTED_EOF (-7)
-#define BZ_OUTBUFF_FULL (-8)
-#define BZ_CONFIG_ERROR (-9)
-
-typedef
- struct {
- char *next_in;
- unsigned int avail_in;
- unsigned int total_in_lo32;
- unsigned int total_in_hi32;
-
- char *next_out;
- unsigned int avail_out;
- unsigned int total_out_lo32;
- unsigned int total_out_hi32;
-
- void *state;
-
- void *(*bzalloc)(void *,int,int);
- void (*bzfree)(void *,void *);
- void *opaque;
- }
- bz_stream;
-
-
-#ifndef BZ_IMPORT
-#define BZ_EXPORT
-#endif
-
-#ifndef BZ_NO_STDIO
-/* Need a definitition for FILE */
-#include <stdio.h>
-#endif
-
-#ifdef _WIN32
-# define WINAPI __stdcall
-# ifdef small
- /* windows.h define small to char */
-# undef small
-# endif
-# ifdef BZ_EXPORT
-# define BZ_API(func) WINAPI func
-# define BZ_EXTERN extern
-# else
- /* import windows dll dynamically */
-# define BZ_API(func) (WINAPI * func)
-# define BZ_EXTERN
-# endif
-#else
-# define BZ_API(func) func
-# define BZ_EXTERN extern
-#endif
-
-
-/*-- Core (low-level) library functions --*/
-
-BZ_EXTERN int BZ_API(BZ2_bzCompressInit) (
- bz_stream* strm,
- int blockSize100k,
- int verbosity,
- int workFactor
- );
-
-BZ_EXTERN int BZ_API(BZ2_bzCompress) (
- bz_stream* strm,
- int action
- );
-
-BZ_EXTERN int BZ_API(BZ2_bzCompressEnd) (
- bz_stream* strm
- );
-
-BZ_EXTERN int BZ_API(BZ2_bzDecompressInit) (
- bz_stream *strm,
- int verbosity,
- int small
- );
-
-BZ_EXTERN int BZ_API(BZ2_bzDecompress) (
- bz_stream* strm
- );
-
-BZ_EXTERN int BZ_API(BZ2_bzDecompressEnd) (
- bz_stream *strm
- );
-
-
-
-/*-- High(er) level library functions --*/
-
-#ifndef BZ_NO_STDIO
-#define BZ_MAX_UNUSED 5000
-
-typedef void BZFILE;
-
-BZ_EXTERN BZFILE* BZ_API(BZ2_bzReadOpen) (
- int* bzerror,
- FILE* f,
- int verbosity,
- int small,
- void* unused,
- int nUnused
- );
-
-BZ_EXTERN void BZ_API(BZ2_bzReadClose) (
- int* bzerror,
- BZFILE* b
- );
-
-BZ_EXTERN void BZ_API(BZ2_bzReadGetUnused) (
- int* bzerror,
- BZFILE* b,
- void** unused,
- int* nUnused
- );
-
-BZ_EXTERN int BZ_API(BZ2_bzRead) (
- int* bzerror,
- BZFILE* b,
- void* buf,
- int len
- );
-
-BZ_EXTERN BZFILE* BZ_API(BZ2_bzWriteOpen) (
- int* bzerror,
- FILE* f,
- int blockSize100k,
- int verbosity,
- int workFactor
- );
-
-BZ_EXTERN void BZ_API(BZ2_bzWrite) (
- int* bzerror,
- BZFILE* b,
- void* buf,
- int len
- );
-
-BZ_EXTERN void BZ_API(BZ2_bzWriteClose) (
- int* bzerror,
- BZFILE* b,
- int abandon,
- unsigned int* nbytes_in,
- unsigned int* nbytes_out
- );
-
-BZ_EXTERN void BZ_API(BZ2_bzWriteClose64) (
- int* bzerror,
- BZFILE* b,
- int abandon,
- unsigned int* nbytes_in_lo32,
- unsigned int* nbytes_in_hi32,
- unsigned int* nbytes_out_lo32,
- unsigned int* nbytes_out_hi32
- );
-#endif
-
-
-/*-- Utility functions --*/
-
-BZ_EXTERN int BZ_API(BZ2_bzBuffToBuffCompress) (
- char* dest,
- unsigned int* destLen,
- char* source,
- unsigned int sourceLen,
- int blockSize100k,
- int verbosity,
- int workFactor
- );
-
-BZ_EXTERN int BZ_API(BZ2_bzBuffToBuffDecompress) (
- char* dest,
- unsigned int* destLen,
- char* source,
- unsigned int sourceLen,
- int small,
- int verbosity
- );
-
-
-/*--
- Code contributed by Yoshioka Tsuneo (tsuneo@rr.iij4u.or.jp)
- to support better zlib compatibility.
- This code is not _officially_ part of libbzip2 (yet);
- I haven't tested it, documented it, or considered the
- threading-safeness of it.
- If this code breaks, please contact both Yoshioka and me.
---*/
-
-BZ_EXTERN const char * BZ_API(BZ2_bzlibVersion) (
- void
- );
-
-#ifndef BZ_NO_STDIO
-BZ_EXTERN BZFILE * BZ_API(BZ2_bzopen) (
- const char *path,
- const char *mode
- );
-
-BZ_EXTERN BZFILE * BZ_API(BZ2_bzdopen) (
- int fd,
- const char *mode
- );
-
-BZ_EXTERN int BZ_API(BZ2_bzread) (
- BZFILE* b,
- void* buf,
- int len
- );
-
-BZ_EXTERN int BZ_API(BZ2_bzwrite) (
- BZFILE* b,
- void* buf,
- int len
- );
-
-BZ_EXTERN int BZ_API(BZ2_bzflush) (
- BZFILE* b
- );
-
-BZ_EXTERN void BZ_API(BZ2_bzclose) (
- BZFILE* b
- );
-
-BZ_EXTERN const char * BZ_API(BZ2_bzerror) (
- BZFILE *b,
- int *errnum
- );
-#endif
-
-#ifdef __cplusplus
-}
-#endif
-
-#endif
-
-/*-------------------------------------------------------------*/
-/*--- end bzlib.h ---*/
-/*-------------------------------------------------------------*/
+++ /dev/null
-
-/*-------------------------------------------------------------*/
-/*--- Private header file for the library. ---*/
-/*--- bzlib_private.h ---*/
-/*-------------------------------------------------------------*/
-
-/* ------------------------------------------------------------------
- This file is part of bzip2/libbzip2, a program and library for
- lossless, block-sorting data compression.
-
- bzip2/libbzip2 version 1.0.6 of 6 September 2010
- Copyright (C) 1996-2010 Julian Seward <jseward@bzip.org>
-
- Please read the WARNING, DISCLAIMER and PATENTS sections in the
- README file.
-
- This program is released under the terms of the license contained
- in the file LICENSE.
- ------------------------------------------------------------------ */
-
-
-#ifndef _BZLIB_PRIVATE_H
-#define _BZLIB_PRIVATE_H
-
-#include <stdlib.h>
-
-#ifndef BZ_NO_STDIO
-#include <stdio.h>
-#include <ctype.h>
-#include <string.h>
-#endif
-
-#include "bzlib.h"
-
-
-
-/*-- General stuff. --*/
-
-#define BZ_VERSION "1.0.6, 6-Sept-2010"
-
-typedef char Char;
-typedef unsigned char Bool;
-typedef unsigned char UChar;
-typedef int Int32;
-typedef unsigned int UInt32;
-typedef short Int16;
-typedef unsigned short UInt16;
-
-#define True ((Bool)1)
-#define False ((Bool)0)
-
-#ifndef __GNUC__
-#define __inline__ /* */
-#endif
-
-#ifndef BZ_NO_STDIO
-
-extern void BZ2_bz__AssertH__fail ( int errcode );
-#define AssertH(cond,errcode) \
- { if (!(cond)) BZ2_bz__AssertH__fail ( errcode ); }
-
-#if BZ_DEBUG
-#define AssertD(cond,msg) \
- { if (!(cond)) { \
- fprintf ( stderr, \
- "\n\nlibbzip2(debug build): internal error\n\t%s\n", msg );\
- exit(1); \
- }}
-#else
-#define AssertD(cond,msg) /* */
-#endif
-
-#define VPrintf0(zf) \
- fprintf(stderr,zf)
-#define VPrintf1(zf,za1) \
- fprintf(stderr,zf,za1)
-#define VPrintf2(zf,za1,za2) \
- fprintf(stderr,zf,za1,za2)
-#define VPrintf3(zf,za1,za2,za3) \
- fprintf(stderr,zf,za1,za2,za3)
-#define VPrintf4(zf,za1,za2,za3,za4) \
- fprintf(stderr,zf,za1,za2,za3,za4)
-#define VPrintf5(zf,za1,za2,za3,za4,za5) \
- fprintf(stderr,zf,za1,za2,za3,za4,za5)
-
-#else
-
-extern void bz_internal_error ( int errcode );
-#define AssertH(cond,errcode) \
- { if (!(cond)) bz_internal_error ( errcode ); }
-#define AssertD(cond,msg) do { } while (0)
-#define VPrintf0(zf) do { } while (0)
-#define VPrintf1(zf,za1) do { } while (0)
-#define VPrintf2(zf,za1,za2) do { } while (0)
-#define VPrintf3(zf,za1,za2,za3) do { } while (0)
-#define VPrintf4(zf,za1,za2,za3,za4) do { } while (0)
-#define VPrintf5(zf,za1,za2,za3,za4,za5) do { } while (0)
-
-#endif
-
-
-#define BZALLOC(nnn) (strm->bzalloc)(strm->opaque,(nnn),1)
-#define BZFREE(ppp) (strm->bzfree)(strm->opaque,(ppp))
-
-
-/*-- Header bytes. --*/
-
-#define BZ_HDR_B 0x42 /* 'B' */
-#define BZ_HDR_Z 0x5a /* 'Z' */
-#define BZ_HDR_h 0x68 /* 'h' */
-#define BZ_HDR_0 0x30 /* '0' */
-
-/*-- Constants for the back end. --*/
-
-#define BZ_MAX_ALPHA_SIZE 258
-#define BZ_MAX_CODE_LEN 23
-
-#define BZ_RUNA 0
-#define BZ_RUNB 1
-
-#define BZ_N_GROUPS 6
-#define BZ_G_SIZE 50
-#define BZ_N_ITERS 4
-
-#define BZ_MAX_SELECTORS (2 + (900000 / BZ_G_SIZE))
-
-
-
-/*-- Stuff for randomising repetitive blocks. --*/
-
-extern Int32 BZ2_rNums[512];
-
-#define BZ_RAND_DECLS \
- Int32 rNToGo; \
- Int32 rTPos \
-
-#define BZ_RAND_INIT_MASK \
- s->rNToGo = 0; \
- s->rTPos = 0 \
-
-#define BZ_RAND_MASK ((s->rNToGo == 1) ? 1 : 0)
-
-#define BZ_RAND_UPD_MASK \
- if (s->rNToGo == 0) { \
- s->rNToGo = BZ2_rNums[s->rTPos]; \
- s->rTPos++; \
- if (s->rTPos == 512) s->rTPos = 0; \
- } \
- s->rNToGo--;
-
-
-
-/*-- Stuff for doing CRCs. --*/
-
-extern UInt32 BZ2_crc32Table[256];
-
-#define BZ_INITIALISE_CRC(crcVar) \
-{ \
- crcVar = 0xffffffffL; \
-}
-
-#define BZ_FINALISE_CRC(crcVar) \
-{ \
- crcVar = ~(crcVar); \
-}
-
-#define BZ_UPDATE_CRC(crcVar,cha) \
-{ \
- crcVar = (crcVar << 8) ^ \
- BZ2_crc32Table[(crcVar >> 24) ^ \
- ((UChar)cha)]; \
-}
-
-
-
-/*-- States and modes for compression. --*/
-
-#define BZ_M_IDLE 1
-#define BZ_M_RUNNING 2
-#define BZ_M_FLUSHING 3
-#define BZ_M_FINISHING 4
-
-#define BZ_S_OUTPUT 1
-#define BZ_S_INPUT 2
-
-#define BZ_N_RADIX 2
-#define BZ_N_QSORT 12
-#define BZ_N_SHELL 18
-#define BZ_N_OVERSHOOT (BZ_N_RADIX + BZ_N_QSORT + BZ_N_SHELL + 2)
-
-
-
-
-/*-- Structure holding all the compression-side stuff. --*/
-
-typedef
- struct {
- /* pointer back to the struct bz_stream */
- bz_stream* strm;
-
- /* mode this stream is in, and whether inputting */
- /* or outputting data */
- Int32 mode;
- Int32 state;
-
- /* remembers avail_in when flush/finish requested */
- UInt32 avail_in_expect;
-
- /* for doing the block sorting */
- UInt32* arr1;
- UInt32* arr2;
- UInt32* ftab;
- Int32 origPtr;
-
- /* aliases for arr1 and arr2 */
- UInt32* ptr;
- UChar* block;
- UInt16* mtfv;
- UChar* zbits;
-
- /* for deciding when to use the fallback sorting algorithm */
- Int32 workFactor;
-
- /* run-length-encoding of the input */
- UInt32 state_in_ch;
- Int32 state_in_len;
- BZ_RAND_DECLS;
-
- /* input and output limits and current posns */
- Int32 nblock;
- Int32 nblockMAX;
- Int32 numZ;
- Int32 state_out_pos;
-
- /* map of bytes used in block */
- Int32 nInUse;
- Bool inUse[256];
- UChar unseqToSeq[256];
-
- /* the buffer for bit stream creation */
- UInt32 bsBuff;
- Int32 bsLive;
-
- /* block and combined CRCs */
- UInt32 blockCRC;
- UInt32 combinedCRC;
-
- /* misc administratium */
- Int32 verbosity;
- Int32 blockNo;
- Int32 blockSize100k;
-
- /* stuff for coding the MTF values */
- Int32 nMTF;
- Int32 mtfFreq [BZ_MAX_ALPHA_SIZE];
- UChar selector [BZ_MAX_SELECTORS];
- UChar selectorMtf[BZ_MAX_SELECTORS];
-
- UChar len [BZ_N_GROUPS][BZ_MAX_ALPHA_SIZE];
- Int32 code [BZ_N_GROUPS][BZ_MAX_ALPHA_SIZE];
- Int32 rfreq [BZ_N_GROUPS][BZ_MAX_ALPHA_SIZE];
- /* second dimension: only 3 needed; 4 makes index calculations faster */
- UInt32 len_pack[BZ_MAX_ALPHA_SIZE][4];
-
- }
- EState;
-
-
-
-/*-- externs for compression. --*/
-
-extern void
-BZ2_blockSort ( EState* );
-
-extern void
-BZ2_compressBlock ( EState*, Bool );
-
-extern void
-BZ2_bsInitWrite ( EState* );
-
-extern void
-BZ2_hbAssignCodes ( Int32*, UChar*, Int32, Int32, Int32 );
-
-extern void
-BZ2_hbMakeCodeLengths ( UChar*, Int32*, Int32, Int32 );
-
-
-
-/*-- states for decompression. --*/
-
-#define BZ_X_IDLE 1
-#define BZ_X_OUTPUT 2
-
-#define BZ_X_MAGIC_1 10
-#define BZ_X_MAGIC_2 11
-#define BZ_X_MAGIC_3 12
-#define BZ_X_MAGIC_4 13
-#define BZ_X_BLKHDR_1 14
-#define BZ_X_BLKHDR_2 15
-#define BZ_X_BLKHDR_3 16
-#define BZ_X_BLKHDR_4 17
-#define BZ_X_BLKHDR_5 18
-#define BZ_X_BLKHDR_6 19
-#define BZ_X_BCRC_1 20
-#define BZ_X_BCRC_2 21
-#define BZ_X_BCRC_3 22
-#define BZ_X_BCRC_4 23
-#define BZ_X_RANDBIT 24
-#define BZ_X_ORIGPTR_1 25
-#define BZ_X_ORIGPTR_2 26
-#define BZ_X_ORIGPTR_3 27
-#define BZ_X_MAPPING_1 28
-#define BZ_X_MAPPING_2 29
-#define BZ_X_SELECTOR_1 30
-#define BZ_X_SELECTOR_2 31
-#define BZ_X_SELECTOR_3 32
-#define BZ_X_CODING_1 33
-#define BZ_X_CODING_2 34
-#define BZ_X_CODING_3 35
-#define BZ_X_MTF_1 36
-#define BZ_X_MTF_2 37
-#define BZ_X_MTF_3 38
-#define BZ_X_MTF_4 39
-#define BZ_X_MTF_5 40
-#define BZ_X_MTF_6 41
-#define BZ_X_ENDHDR_2 42
-#define BZ_X_ENDHDR_3 43
-#define BZ_X_ENDHDR_4 44
-#define BZ_X_ENDHDR_5 45
-#define BZ_X_ENDHDR_6 46
-#define BZ_X_CCRC_1 47
-#define BZ_X_CCRC_2 48
-#define BZ_X_CCRC_3 49
-#define BZ_X_CCRC_4 50
-
-
-
-/*-- Constants for the fast MTF decoder. --*/
-
-#define MTFA_SIZE 4096
-#define MTFL_SIZE 16
-
-
-
-/*-- Structure holding all the decompression-side stuff. --*/
-
-typedef
- struct {
- /* pointer back to the struct bz_stream */
- bz_stream* strm;
-
- /* state indicator for this stream */
- Int32 state;
-
- /* for doing the final run-length decoding */
- UChar state_out_ch;
- Int32 state_out_len;
- Bool blockRandomised;
- BZ_RAND_DECLS;
-
- /* the buffer for bit stream reading */
- UInt32 bsBuff;
- Int32 bsLive;
-
- /* misc administratium */
- Int32 blockSize100k;
- Bool smallDecompress;
- Int32 currBlockNo;
- Int32 verbosity;
-
- /* for undoing the Burrows-Wheeler transform */
- Int32 origPtr;
- UInt32 tPos;
- Int32 k0;
- Int32 unzftab[256];
- Int32 nblock_used;
- Int32 cftab[257];
- Int32 cftabCopy[257];
-
- /* for undoing the Burrows-Wheeler transform (FAST) */
- UInt32 *tt;
-
- /* for undoing the Burrows-Wheeler transform (SMALL) */
- UInt16 *ll16;
- UChar *ll4;
-
- /* stored and calculated CRCs */
- UInt32 storedBlockCRC;
- UInt32 storedCombinedCRC;
- UInt32 calculatedBlockCRC;
- UInt32 calculatedCombinedCRC;
-
- /* map of bytes used in block */
- Int32 nInUse;
- Bool inUse[256];
- Bool inUse16[16];
- UChar seqToUnseq[256];
-
- /* for decoding the MTF values */
- UChar mtfa [MTFA_SIZE];
- Int32 mtfbase[256 / MTFL_SIZE];
- UChar selector [BZ_MAX_SELECTORS];
- UChar selectorMtf[BZ_MAX_SELECTORS];
- UChar len [BZ_N_GROUPS][BZ_MAX_ALPHA_SIZE];
-
- Int32 limit [BZ_N_GROUPS][BZ_MAX_ALPHA_SIZE];
- Int32 base [BZ_N_GROUPS][BZ_MAX_ALPHA_SIZE];
- Int32 perm [BZ_N_GROUPS][BZ_MAX_ALPHA_SIZE];
- Int32 minLens[BZ_N_GROUPS];
-
- /* save area for scalars in the main decompress code */
- Int32 save_i;
- Int32 save_j;
- Int32 save_t;
- Int32 save_alphaSize;
- Int32 save_nGroups;
- Int32 save_nSelectors;
- Int32 save_EOB;
- Int32 save_groupNo;
- Int32 save_groupPos;
- Int32 save_nextSym;
- Int32 save_nblockMAX;
- Int32 save_nblock;
- Int32 save_es;
- Int32 save_N;
- Int32 save_curr;
- Int32 save_zt;
- Int32 save_zn;
- Int32 save_zvec;
- Int32 save_zj;
- Int32 save_gSel;
- Int32 save_gMinlen;
- Int32* save_gLimit;
- Int32* save_gBase;
- Int32* save_gPerm;
-
- }
- DState;
-
-
-
-/*-- Macros for decompression. --*/
-
-#define BZ_GET_FAST(cccc) \
- /* c_tPos is unsigned, hence test < 0 is pointless. */ \
- if (s->tPos >= (UInt32)100000 * (UInt32)s->blockSize100k) return True; \
- s->tPos = s->tt[s->tPos]; \
- cccc = (UChar)(s->tPos & 0xff); \
- s->tPos >>= 8;
-
-#define BZ_GET_FAST_C(cccc) \
- /* c_tPos is unsigned, hence test < 0 is pointless. */ \
- if (c_tPos >= (UInt32)100000 * (UInt32)ro_blockSize100k) return True; \
- c_tPos = c_tt[c_tPos]; \
- cccc = (UChar)(c_tPos & 0xff); \
- c_tPos >>= 8;
-
-#define SET_LL4(i,n) \
- { if (((i) & 0x1) == 0) \
- s->ll4[(i) >> 1] = (s->ll4[(i) >> 1] & 0xf0) | (n); else \
- s->ll4[(i) >> 1] = (s->ll4[(i) >> 1] & 0x0f) | ((n) << 4); \
- }
-
-#define GET_LL4(i) \
- ((((UInt32)(s->ll4[(i) >> 1])) >> (((i) << 2) & 0x4)) & 0xF)
-
-#define SET_LL(i,n) \
- { s->ll16[i] = (UInt16)(n & 0x0000ffff); \
- SET_LL4(i, n >> 16); \
- }
-
-#define GET_LL(i) \
- (((UInt32)s->ll16[i]) | (GET_LL4(i) << 16))
-
-#define BZ_GET_SMALL(cccc) \
- /* c_tPos is unsigned, hence test < 0 is pointless. */ \
- if (s->tPos >= (UInt32)100000 * (UInt32)s->blockSize100k) return True; \
- cccc = BZ2_indexIntoF ( s->tPos, s->cftab ); \
- s->tPos = GET_LL(s->tPos);
-
-
-/*-- externs for decompression. --*/
-
-extern Int32
-BZ2_indexIntoF ( Int32, Int32* );
-
-extern Int32
-BZ2_decompress ( DState* );
-
-extern void
-BZ2_hbCreateDecodeTables ( Int32*, Int32*, Int32*, UChar*,
- Int32, Int32, Int32 );
-
-
-#endif
-
-
-/*-- BZ_NO_STDIO seems to make NULL disappear on some platforms. --*/
-
-#ifdef BZ_NO_STDIO
-#ifndef NULL
-#define NULL 0
-#endif
-#endif
-
-
-/*-------------------------------------------------------------*/
-/*--- end bzlib_private.h ---*/
-/*-------------------------------------------------------------*/
+++ /dev/null
-
-/*-------------------------------------------------------------*/
-/*--- Compression machinery (not incl block sorting) ---*/
-/*--- compress.c ---*/
-/*-------------------------------------------------------------*/
-
-/* ------------------------------------------------------------------
- This file is part of bzip2/libbzip2, a program and library for
- lossless, block-sorting data compression.
-
- bzip2/libbzip2 version 1.0.6 of 6 September 2010
- Copyright (C) 1996-2010 Julian Seward <jseward@bzip.org>
-
- Please read the WARNING, DISCLAIMER and PATENTS sections in the
- README file.
-
- This program is released under the terms of the license contained
- in the file LICENSE.
- ------------------------------------------------------------------ */
-
-
-/* CHANGES
- 0.9.0 -- original version.
- 0.9.0a/b -- no changes in this file.
- 0.9.0c -- changed setting of nGroups in sendMTFValues()
- so as to do a bit better on small files
-*/
-
-#include "bzlib_private.h"
-
-
-/*---------------------------------------------------*/
-/*--- Bit stream I/O ---*/
-/*---------------------------------------------------*/
-
-/*---------------------------------------------------*/
-void BZ2_bsInitWrite ( EState* s )
-{
- s->bsLive = 0;
- s->bsBuff = 0;
-}
-
-
-/*---------------------------------------------------*/
-static
-void bsFinishWrite ( EState* s )
-{
- while (s->bsLive > 0) {
- s->zbits[s->numZ] = (UChar)(s->bsBuff >> 24);
- s->numZ++;
- s->bsBuff <<= 8;
- s->bsLive -= 8;
- }
-}
-
-
-/*---------------------------------------------------*/
-#define bsNEEDW(nz) \
-{ \
- while (s->bsLive >= 8) { \
- s->zbits[s->numZ] \
- = (UChar)(s->bsBuff >> 24); \
- s->numZ++; \
- s->bsBuff <<= 8; \
- s->bsLive -= 8; \
- } \
-}
-
-
-/*---------------------------------------------------*/
-static
-__inline__
-void bsW ( EState* s, Int32 n, UInt32 v )
-{
- bsNEEDW ( n );
- s->bsBuff |= (v << (32 - s->bsLive - n));
- s->bsLive += n;
-}
-
-
-/*---------------------------------------------------*/
-static
-void bsPutUInt32 ( EState* s, UInt32 u )
-{
- bsW ( s, 8, (u >> 24) & 0xffL );
- bsW ( s, 8, (u >> 16) & 0xffL );
- bsW ( s, 8, (u >> 8) & 0xffL );
- bsW ( s, 8, u & 0xffL );
-}
-
-
-/*---------------------------------------------------*/
-static
-void bsPutUChar ( EState* s, UChar c )
-{
- bsW( s, 8, (UInt32)c );
-}
-
-
-/*---------------------------------------------------*/
-/*--- The back end proper ---*/
-/*---------------------------------------------------*/
-
-/*---------------------------------------------------*/
-static
-void makeMaps_e ( EState* s )
-{
- Int32 i;
- s->nInUse = 0;
- for (i = 0; i < 256; i++)
- if (s->inUse[i]) {
- s->unseqToSeq[i] = s->nInUse;
- s->nInUse++;
- }
-}
-
-
-/*---------------------------------------------------*/
-static
-void generateMTFValues ( EState* s )
-{
- UChar yy[256];
- Int32 i, j;
- Int32 zPend;
- Int32 wr;
- Int32 EOB;
-
- /*
- After sorting (eg, here),
- s->arr1 [ 0 .. s->nblock-1 ] holds sorted order,
- and
- ((UChar*)s->arr2) [ 0 .. s->nblock-1 ]
- holds the original block data.
-
- The first thing to do is generate the MTF values,
- and put them in
- ((UInt16*)s->arr1) [ 0 .. s->nblock-1 ].
- Because there are strictly fewer or equal MTF values
- than block values, ptr values in this area are overwritten
- with MTF values only when they are no longer needed.
-
- The final compressed bitstream is generated into the
- area starting at
- (UChar*) (&((UChar*)s->arr2)[s->nblock])
-
- These storage aliases are set up in bzCompressInit(),
- except for the last one, which is arranged in
- compressBlock().
- */
- UInt32* ptr = s->ptr;
- UChar* block = s->block;
- UInt16* mtfv = s->mtfv;
-
- makeMaps_e ( s );
- EOB = s->nInUse+1;
-
- for (i = 0; i <= EOB; i++) s->mtfFreq[i] = 0;
-
- wr = 0;
- zPend = 0;
- for (i = 0; i < s->nInUse; i++) yy[i] = (UChar) i;
-
- for (i = 0; i < s->nblock; i++) {
- UChar ll_i;
- AssertD ( wr <= i, "generateMTFValues(1)" );
- j = ptr[i]-1; if (j < 0) j += s->nblock;
- ll_i = s->unseqToSeq[block[j]];
- AssertD ( ll_i < s->nInUse, "generateMTFValues(2a)" );
-
- if (yy[0] == ll_i) {
- zPend++;
- } else {
-
- if (zPend > 0) {
- zPend--;
- while (True) {
- if (zPend & 1) {
- mtfv[wr] = BZ_RUNB; wr++;
- s->mtfFreq[BZ_RUNB]++;
- } else {
- mtfv[wr] = BZ_RUNA; wr++;
- s->mtfFreq[BZ_RUNA]++;
- }
- if (zPend < 2) break;
- zPend = (zPend - 2) / 2;
- };
- zPend = 0;
- }
- {
- register UChar rtmp;
- register UChar* ryy_j;
- register UChar rll_i;
- rtmp = yy[1];
- yy[1] = yy[0];
- ryy_j = &(yy[1]);
- rll_i = ll_i;
- while ( rll_i != rtmp ) {
- register UChar rtmp2;
- ryy_j++;
- rtmp2 = rtmp;
- rtmp = *ryy_j;
- *ryy_j = rtmp2;
- };
- yy[0] = rtmp;
- j = ryy_j - &(yy[0]);
- mtfv[wr] = j+1; wr++; s->mtfFreq[j+1]++;
- }
-
- }
- }
-
- if (zPend > 0) {
- zPend--;
- while (True) {
- if (zPend & 1) {
- mtfv[wr] = BZ_RUNB; wr++;
- s->mtfFreq[BZ_RUNB]++;
- } else {
- mtfv[wr] = BZ_RUNA; wr++;
- s->mtfFreq[BZ_RUNA]++;
- }
- if (zPend < 2) break;
- zPend = (zPend - 2) / 2;
- };
- zPend = 0;
- }
-
- mtfv[wr] = EOB; wr++; s->mtfFreq[EOB]++;
-
- s->nMTF = wr;
-}
-
-
-/*---------------------------------------------------*/
-#define BZ_LESSER_ICOST 0
-#define BZ_GREATER_ICOST 15
-
-static
-void sendMTFValues ( EState* s )
-{
- Int32 v, t, i, j, gs, ge, totc, bt, bc, iter;
- Int32 nSelectors, alphaSize, minLen, maxLen, selCtr;
- Int32 nGroups, nBytes;
-
- /*--
- UChar len [BZ_N_GROUPS][BZ_MAX_ALPHA_SIZE];
- is a global since the decoder also needs it.
-
- Int32 code[BZ_N_GROUPS][BZ_MAX_ALPHA_SIZE];
- Int32 rfreq[BZ_N_GROUPS][BZ_MAX_ALPHA_SIZE];
- are also globals only used in this proc.
- Made global to keep stack frame size small.
- --*/
-
-
- UInt16 cost[BZ_N_GROUPS];
- Int32 fave[BZ_N_GROUPS];
-
- UInt16* mtfv = s->mtfv;
-
- if (s->verbosity >= 3)
- VPrintf3( " %d in block, %d after MTF & 1-2 coding, "
- "%d+2 syms in use\n",
- s->nblock, s->nMTF, s->nInUse );
-
- alphaSize = s->nInUse+2;
- for (t = 0; t < BZ_N_GROUPS; t++)
- for (v = 0; v < alphaSize; v++)
- s->len[t][v] = BZ_GREATER_ICOST;
-
- /*--- Decide how many coding tables to use ---*/
- AssertH ( s->nMTF > 0, 3001 );
- if (s->nMTF < 200) nGroups = 2; else
- if (s->nMTF < 600) nGroups = 3; else
- if (s->nMTF < 1200) nGroups = 4; else
- if (s->nMTF < 2400) nGroups = 5; else
- nGroups = 6;
-
- /*--- Generate an initial set of coding tables ---*/
- {
- Int32 nPart, remF, tFreq, aFreq;
-
- nPart = nGroups;
- remF = s->nMTF;
- gs = 0;
- while (nPart > 0) {
- tFreq = remF / nPart;
- ge = gs-1;
- aFreq = 0;
- while (aFreq < tFreq && ge < alphaSize-1) {
- ge++;
- aFreq += s->mtfFreq[ge];
- }
-
- if (ge > gs
- && nPart != nGroups && nPart != 1
- && ((nGroups-nPart) % 2 == 1)) {
- aFreq -= s->mtfFreq[ge];
- ge--;
- }
-
- if (s->verbosity >= 3)
- VPrintf5( " initial group %d, [%d .. %d], "
- "has %d syms (%4.1f%%)\n",
- nPart, gs, ge, aFreq,
- (100.0 * (float)aFreq) / (float)(s->nMTF) );
-
- for (v = 0; v < alphaSize; v++)
- if (v >= gs && v <= ge)
- s->len[nPart-1][v] = BZ_LESSER_ICOST; else
- s->len[nPart-1][v] = BZ_GREATER_ICOST;
-
- nPart--;
- gs = ge+1;
- remF -= aFreq;
- }
- }
-
- /*---
- Iterate up to BZ_N_ITERS times to improve the tables.
- ---*/
- for (iter = 0; iter < BZ_N_ITERS; iter++) {
-
- for (t = 0; t < nGroups; t++) fave[t] = 0;
-
- for (t = 0; t < nGroups; t++)
- for (v = 0; v < alphaSize; v++)
- s->rfreq[t][v] = 0;
-
- /*---
- Set up an auxiliary length table which is used to fast-track
- the common case (nGroups == 6).
- ---*/
- if (nGroups == 6) {
- for (v = 0; v < alphaSize; v++) {
- s->len_pack[v][0] = (s->len[1][v] << 16) | s->len[0][v];
- s->len_pack[v][1] = (s->len[3][v] << 16) | s->len[2][v];
- s->len_pack[v][2] = (s->len[5][v] << 16) | s->len[4][v];
- }
- }
-
- nSelectors = 0;
- totc = 0;
- gs = 0;
- while (True) {
-
- /*--- Set group start & end marks. --*/
- if (gs >= s->nMTF) break;
- ge = gs + BZ_G_SIZE - 1;
- if (ge >= s->nMTF) ge = s->nMTF-1;
-
- /*--
- Calculate the cost of this group as coded
- by each of the coding tables.
- --*/
- for (t = 0; t < nGroups; t++) cost[t] = 0;
-
- if (nGroups == 6 && 50 == ge-gs+1) {
- /*--- fast track the common case ---*/
- register UInt32 cost01, cost23, cost45;
- register UInt16 icv;
- cost01 = cost23 = cost45 = 0;
-
-# define BZ_ITER(nn) \
- icv = mtfv[gs+(nn)]; \
- cost01 += s->len_pack[icv][0]; \
- cost23 += s->len_pack[icv][1]; \
- cost45 += s->len_pack[icv][2]; \
-
- BZ_ITER(0); BZ_ITER(1); BZ_ITER(2); BZ_ITER(3); BZ_ITER(4);
- BZ_ITER(5); BZ_ITER(6); BZ_ITER(7); BZ_ITER(8); BZ_ITER(9);
- BZ_ITER(10); BZ_ITER(11); BZ_ITER(12); BZ_ITER(13); BZ_ITER(14);
- BZ_ITER(15); BZ_ITER(16); BZ_ITER(17); BZ_ITER(18); BZ_ITER(19);
- BZ_ITER(20); BZ_ITER(21); BZ_ITER(22); BZ_ITER(23); BZ_ITER(24);
- BZ_ITER(25); BZ_ITER(26); BZ_ITER(27); BZ_ITER(28); BZ_ITER(29);
- BZ_ITER(30); BZ_ITER(31); BZ_ITER(32); BZ_ITER(33); BZ_ITER(34);
- BZ_ITER(35); BZ_ITER(36); BZ_ITER(37); BZ_ITER(38); BZ_ITER(39);
- BZ_ITER(40); BZ_ITER(41); BZ_ITER(42); BZ_ITER(43); BZ_ITER(44);
- BZ_ITER(45); BZ_ITER(46); BZ_ITER(47); BZ_ITER(48); BZ_ITER(49);
-
-# undef BZ_ITER
-
- cost[0] = cost01 & 0xffff; cost[1] = cost01 >> 16;
- cost[2] = cost23 & 0xffff; cost[3] = cost23 >> 16;
- cost[4] = cost45 & 0xffff; cost[5] = cost45 >> 16;
-
- } else {
- /*--- slow version which correctly handles all situations ---*/
- for (i = gs; i <= ge; i++) {
- UInt16 icv = mtfv[i];
- for (t = 0; t < nGroups; t++) cost[t] += s->len[t][icv];
- }
- }
-
- /*--
- Find the coding table which is best for this group,
- and record its identity in the selector table.
- --*/
- bc = 999999999; bt = -1;
- for (t = 0; t < nGroups; t++)
- if (cost[t] < bc) { bc = cost[t]; bt = t; };
- totc += bc;
- fave[bt]++;
- s->selector[nSelectors] = bt;
- nSelectors++;
-
- /*--
- Increment the symbol frequencies for the selected table.
- --*/
- if (nGroups == 6 && 50 == ge-gs+1) {
- /*--- fast track the common case ---*/
-
-# define BZ_ITUR(nn) s->rfreq[bt][ mtfv[gs+(nn)] ]++
-
- BZ_ITUR(0); BZ_ITUR(1); BZ_ITUR(2); BZ_ITUR(3); BZ_ITUR(4);
- BZ_ITUR(5); BZ_ITUR(6); BZ_ITUR(7); BZ_ITUR(8); BZ_ITUR(9);
- BZ_ITUR(10); BZ_ITUR(11); BZ_ITUR(12); BZ_ITUR(13); BZ_ITUR(14);
- BZ_ITUR(15); BZ_ITUR(16); BZ_ITUR(17); BZ_ITUR(18); BZ_ITUR(19);
- BZ_ITUR(20); BZ_ITUR(21); BZ_ITUR(22); BZ_ITUR(23); BZ_ITUR(24);
- BZ_ITUR(25); BZ_ITUR(26); BZ_ITUR(27); BZ_ITUR(28); BZ_ITUR(29);
- BZ_ITUR(30); BZ_ITUR(31); BZ_ITUR(32); BZ_ITUR(33); BZ_ITUR(34);
- BZ_ITUR(35); BZ_ITUR(36); BZ_ITUR(37); BZ_ITUR(38); BZ_ITUR(39);
- BZ_ITUR(40); BZ_ITUR(41); BZ_ITUR(42); BZ_ITUR(43); BZ_ITUR(44);
- BZ_ITUR(45); BZ_ITUR(46); BZ_ITUR(47); BZ_ITUR(48); BZ_ITUR(49);
-
-# undef BZ_ITUR
-
- } else {
- /*--- slow version which correctly handles all situations ---*/
- for (i = gs; i <= ge; i++)
- s->rfreq[bt][ mtfv[i] ]++;
- }
-
- gs = ge+1;
- }
- if (s->verbosity >= 3) {
- VPrintf2 ( " pass %d: size is %d, grp uses are ",
- iter+1, totc/8 );
- for (t = 0; t < nGroups; t++)
- VPrintf1 ( "%d ", fave[t] );
- VPrintf0 ( "\n" );
- }
-
- /*--
- Recompute the tables based on the accumulated frequencies.
- --*/
- /* maxLen was changed from 20 to 17 in bzip2-1.0.3. See
- comment in huffman.c for details. */
- for (t = 0; t < nGroups; t++)
- BZ2_hbMakeCodeLengths ( &(s->len[t][0]), &(s->rfreq[t][0]),
- alphaSize, 17 /*20*/ );
- }
-
-
- AssertH( nGroups < 8, 3002 );
- AssertH( nSelectors < 32768 &&
- nSelectors <= (2 + (900000 / BZ_G_SIZE)),
- 3003 );
-
-
- /*--- Compute MTF values for the selectors. ---*/
- {
- UChar pos[BZ_N_GROUPS], ll_i, tmp2, tmp;
- for (i = 0; i < nGroups; i++) pos[i] = i;
- for (i = 0; i < nSelectors; i++) {
- ll_i = s->selector[i];
- j = 0;
- tmp = pos[j];
- while ( ll_i != tmp ) {
- j++;
- tmp2 = tmp;
- tmp = pos[j];
- pos[j] = tmp2;
- };
- pos[0] = tmp;
- s->selectorMtf[i] = j;
- }
- };
-
- /*--- Assign actual codes for the tables. --*/
- for (t = 0; t < nGroups; t++) {
- minLen = 32;
- maxLen = 0;
- for (i = 0; i < alphaSize; i++) {
- if (s->len[t][i] > maxLen) maxLen = s->len[t][i];
- if (s->len[t][i] < minLen) minLen = s->len[t][i];
- }
- AssertH ( !(maxLen > 17 /*20*/ ), 3004 );
- AssertH ( !(minLen < 1), 3005 );
- BZ2_hbAssignCodes ( &(s->code[t][0]), &(s->len[t][0]),
- minLen, maxLen, alphaSize );
- }
-
- /*--- Transmit the mapping table. ---*/
- {
- Bool inUse16[16];
- for (i = 0; i < 16; i++) {
- inUse16[i] = False;
- for (j = 0; j < 16; j++)
- if (s->inUse[i * 16 + j]) inUse16[i] = True;
- }
-
- nBytes = s->numZ;
- for (i = 0; i < 16; i++)
- if (inUse16[i]) bsW(s,1,1); else bsW(s,1,0);
-
- for (i = 0; i < 16; i++)
- if (inUse16[i])
- for (j = 0; j < 16; j++) {
- if (s->inUse[i * 16 + j]) bsW(s,1,1); else bsW(s,1,0);
- }
-
- if (s->verbosity >= 3)
- VPrintf1( " bytes: mapping %d, ", s->numZ-nBytes );
- }
-
- /*--- Now the selectors. ---*/
- nBytes = s->numZ;
- bsW ( s, 3, nGroups );
- bsW ( s, 15, nSelectors );
- for (i = 0; i < nSelectors; i++) {
- for (j = 0; j < s->selectorMtf[i]; j++) bsW(s,1,1);
- bsW(s,1,0);
- }
- if (s->verbosity >= 3)
- VPrintf1( "selectors %d, ", s->numZ-nBytes );
-
- /*--- Now the coding tables. ---*/
- nBytes = s->numZ;
-
- for (t = 0; t < nGroups; t++) {
- Int32 curr = s->len[t][0];
- bsW ( s, 5, curr );
- for (i = 0; i < alphaSize; i++) {
- while (curr < s->len[t][i]) { bsW(s,2,2); curr++; /* 10 */ };
- while (curr > s->len[t][i]) { bsW(s,2,3); curr--; /* 11 */ };
- bsW ( s, 1, 0 );
- }
- }
-
- if (s->verbosity >= 3)
- VPrintf1 ( "code lengths %d, ", s->numZ-nBytes );
-
- /*--- And finally, the block data proper ---*/
- nBytes = s->numZ;
- selCtr = 0;
- gs = 0;
- while (True) {
- if (gs >= s->nMTF) break;
- ge = gs + BZ_G_SIZE - 1;
- if (ge >= s->nMTF) ge = s->nMTF-1;
- AssertH ( s->selector[selCtr] < nGroups, 3006 );
-
- if (nGroups == 6 && 50 == ge-gs+1) {
- /*--- fast track the common case ---*/
- UInt16 mtfv_i;
- UChar* s_len_sel_selCtr
- = &(s->len[s->selector[selCtr]][0]);
- Int32* s_code_sel_selCtr
- = &(s->code[s->selector[selCtr]][0]);
-
-# define BZ_ITAH(nn) \
- mtfv_i = mtfv[gs+(nn)]; \
- bsW ( s, \
- s_len_sel_selCtr[mtfv_i], \
- s_code_sel_selCtr[mtfv_i] )
-
- BZ_ITAH(0); BZ_ITAH(1); BZ_ITAH(2); BZ_ITAH(3); BZ_ITAH(4);
- BZ_ITAH(5); BZ_ITAH(6); BZ_ITAH(7); BZ_ITAH(8); BZ_ITAH(9);
- BZ_ITAH(10); BZ_ITAH(11); BZ_ITAH(12); BZ_ITAH(13); BZ_ITAH(14);
- BZ_ITAH(15); BZ_ITAH(16); BZ_ITAH(17); BZ_ITAH(18); BZ_ITAH(19);
- BZ_ITAH(20); BZ_ITAH(21); BZ_ITAH(22); BZ_ITAH(23); BZ_ITAH(24);
- BZ_ITAH(25); BZ_ITAH(26); BZ_ITAH(27); BZ_ITAH(28); BZ_ITAH(29);
- BZ_ITAH(30); BZ_ITAH(31); BZ_ITAH(32); BZ_ITAH(33); BZ_ITAH(34);
- BZ_ITAH(35); BZ_ITAH(36); BZ_ITAH(37); BZ_ITAH(38); BZ_ITAH(39);
- BZ_ITAH(40); BZ_ITAH(41); BZ_ITAH(42); BZ_ITAH(43); BZ_ITAH(44);
- BZ_ITAH(45); BZ_ITAH(46); BZ_ITAH(47); BZ_ITAH(48); BZ_ITAH(49);
-
-# undef BZ_ITAH
-
- } else {
- /*--- slow version which correctly handles all situations ---*/
- for (i = gs; i <= ge; i++) {
- bsW ( s,
- s->len [s->selector[selCtr]] [mtfv[i]],
- s->code [s->selector[selCtr]] [mtfv[i]] );
- }
- }
-
-
- gs = ge+1;
- selCtr++;
- }
- AssertH( selCtr == nSelectors, 3007 );
-
- if (s->verbosity >= 3)
- VPrintf1( "codes %d\n", s->numZ-nBytes );
-}
-
-
-/*---------------------------------------------------*/
-void BZ2_compressBlock ( EState* s, Bool is_last_block )
-{
- if (s->nblock > 0) {
-
- BZ_FINALISE_CRC ( s->blockCRC );
- s->combinedCRC = (s->combinedCRC << 1) | (s->combinedCRC >> 31);
- s->combinedCRC ^= s->blockCRC;
- if (s->blockNo > 1) s->numZ = 0;
-
- if (s->verbosity >= 2)
- VPrintf4( " block %d: crc = 0x%08x, "
- "combined CRC = 0x%08x, size = %d\n",
- s->blockNo, s->blockCRC, s->combinedCRC, s->nblock );
-
- BZ2_blockSort ( s );
- }
-
- s->zbits = (UChar*) (&((UChar*)s->arr2)[s->nblock]);
-
- /*-- If this is the first block, create the stream header. --*/
- if (s->blockNo == 1) {
- BZ2_bsInitWrite ( s );
- bsPutUChar ( s, BZ_HDR_B );
- bsPutUChar ( s, BZ_HDR_Z );
- bsPutUChar ( s, BZ_HDR_h );
- bsPutUChar ( s, (UChar)(BZ_HDR_0 + s->blockSize100k) );
- }
-
- if (s->nblock > 0) {
-
- bsPutUChar ( s, 0x31 ); bsPutUChar ( s, 0x41 );
- bsPutUChar ( s, 0x59 ); bsPutUChar ( s, 0x26 );
- bsPutUChar ( s, 0x53 ); bsPutUChar ( s, 0x59 );
-
- /*-- Now the block's CRC, so it is in a known place. --*/
- bsPutUInt32 ( s, s->blockCRC );
-
- /*--
- Now a single bit indicating (non-)randomisation.
- As of version 0.9.5, we use a better sorting algorithm
- which makes randomisation unnecessary. So always set
- the randomised bit to 'no'. Of course, the decoder
- still needs to be able to handle randomised blocks
- so as to maintain backwards compatibility with
- older versions of bzip2.
- --*/
- bsW(s,1,0);
-
- bsW ( s, 24, s->origPtr );
- generateMTFValues ( s );
- sendMTFValues ( s );
- }
-
-
- /*-- If this is the last block, add the stream trailer. --*/
- if (is_last_block) {
-
- bsPutUChar ( s, 0x17 ); bsPutUChar ( s, 0x72 );
- bsPutUChar ( s, 0x45 ); bsPutUChar ( s, 0x38 );
- bsPutUChar ( s, 0x50 ); bsPutUChar ( s, 0x90 );
- bsPutUInt32 ( s, s->combinedCRC );
- if (s->verbosity >= 2)
- VPrintf1( " final combined CRC = 0x%08x\n ", s->combinedCRC );
- bsFinishWrite ( s );
- }
-}
-
-
-/*-------------------------------------------------------------*/
-/*--- end compress.c ---*/
-/*-------------------------------------------------------------*/
+++ /dev/null
-
-/*-------------------------------------------------------------*/
-/*--- Table for doing CRCs ---*/
-/*--- crctable.c ---*/
-/*-------------------------------------------------------------*/
-
-/* ------------------------------------------------------------------
- This file is part of bzip2/libbzip2, a program and library for
- lossless, block-sorting data compression.
-
- bzip2/libbzip2 version 1.0.6 of 6 September 2010
- Copyright (C) 1996-2010 Julian Seward <jseward@bzip.org>
-
- Please read the WARNING, DISCLAIMER and PATENTS sections in the
- README file.
-
- This program is released under the terms of the license contained
- in the file LICENSE.
- ------------------------------------------------------------------ */
-
-
-#include "bzlib_private.h"
-
-/*--
- I think this is an implementation of the AUTODIN-II,
- Ethernet & FDDI 32-bit CRC standard. Vaguely derived
- from code by Rob Warnock, in Section 51 of the
- comp.compression FAQ.
---*/
-
-UInt32 BZ2_crc32Table[256] = {
-
- /*-- Ugly, innit? --*/
-
- 0x00000000L, 0x04c11db7L, 0x09823b6eL, 0x0d4326d9L,
- 0x130476dcL, 0x17c56b6bL, 0x1a864db2L, 0x1e475005L,
- 0x2608edb8L, 0x22c9f00fL, 0x2f8ad6d6L, 0x2b4bcb61L,
- 0x350c9b64L, 0x31cd86d3L, 0x3c8ea00aL, 0x384fbdbdL,
- 0x4c11db70L, 0x48d0c6c7L, 0x4593e01eL, 0x4152fda9L,
- 0x5f15adacL, 0x5bd4b01bL, 0x569796c2L, 0x52568b75L,
- 0x6a1936c8L, 0x6ed82b7fL, 0x639b0da6L, 0x675a1011L,
- 0x791d4014L, 0x7ddc5da3L, 0x709f7b7aL, 0x745e66cdL,
- 0x9823b6e0L, 0x9ce2ab57L, 0x91a18d8eL, 0x95609039L,
- 0x8b27c03cL, 0x8fe6dd8bL, 0x82a5fb52L, 0x8664e6e5L,
- 0xbe2b5b58L, 0xbaea46efL, 0xb7a96036L, 0xb3687d81L,
- 0xad2f2d84L, 0xa9ee3033L, 0xa4ad16eaL, 0xa06c0b5dL,
- 0xd4326d90L, 0xd0f37027L, 0xddb056feL, 0xd9714b49L,
- 0xc7361b4cL, 0xc3f706fbL, 0xceb42022L, 0xca753d95L,
- 0xf23a8028L, 0xf6fb9d9fL, 0xfbb8bb46L, 0xff79a6f1L,
- 0xe13ef6f4L, 0xe5ffeb43L, 0xe8bccd9aL, 0xec7dd02dL,
- 0x34867077L, 0x30476dc0L, 0x3d044b19L, 0x39c556aeL,
- 0x278206abL, 0x23431b1cL, 0x2e003dc5L, 0x2ac12072L,
- 0x128e9dcfL, 0x164f8078L, 0x1b0ca6a1L, 0x1fcdbb16L,
- 0x018aeb13L, 0x054bf6a4L, 0x0808d07dL, 0x0cc9cdcaL,
- 0x7897ab07L, 0x7c56b6b0L, 0x71159069L, 0x75d48ddeL,
- 0x6b93dddbL, 0x6f52c06cL, 0x6211e6b5L, 0x66d0fb02L,
- 0x5e9f46bfL, 0x5a5e5b08L, 0x571d7dd1L, 0x53dc6066L,
- 0x4d9b3063L, 0x495a2dd4L, 0x44190b0dL, 0x40d816baL,
- 0xaca5c697L, 0xa864db20L, 0xa527fdf9L, 0xa1e6e04eL,
- 0xbfa1b04bL, 0xbb60adfcL, 0xb6238b25L, 0xb2e29692L,
- 0x8aad2b2fL, 0x8e6c3698L, 0x832f1041L, 0x87ee0df6L,
- 0x99a95df3L, 0x9d684044L, 0x902b669dL, 0x94ea7b2aL,
- 0xe0b41de7L, 0xe4750050L, 0xe9362689L, 0xedf73b3eL,
- 0xf3b06b3bL, 0xf771768cL, 0xfa325055L, 0xfef34de2L,
- 0xc6bcf05fL, 0xc27dede8L, 0xcf3ecb31L, 0xcbffd686L,
- 0xd5b88683L, 0xd1799b34L, 0xdc3abdedL, 0xd8fba05aL,
- 0x690ce0eeL, 0x6dcdfd59L, 0x608edb80L, 0x644fc637L,
- 0x7a089632L, 0x7ec98b85L, 0x738aad5cL, 0x774bb0ebL,
- 0x4f040d56L, 0x4bc510e1L, 0x46863638L, 0x42472b8fL,
- 0x5c007b8aL, 0x58c1663dL, 0x558240e4L, 0x51435d53L,
- 0x251d3b9eL, 0x21dc2629L, 0x2c9f00f0L, 0x285e1d47L,
- 0x36194d42L, 0x32d850f5L, 0x3f9b762cL, 0x3b5a6b9bL,
- 0x0315d626L, 0x07d4cb91L, 0x0a97ed48L, 0x0e56f0ffL,
- 0x1011a0faL, 0x14d0bd4dL, 0x19939b94L, 0x1d528623L,
- 0xf12f560eL, 0xf5ee4bb9L, 0xf8ad6d60L, 0xfc6c70d7L,
- 0xe22b20d2L, 0xe6ea3d65L, 0xeba91bbcL, 0xef68060bL,
- 0xd727bbb6L, 0xd3e6a601L, 0xdea580d8L, 0xda649d6fL,
- 0xc423cd6aL, 0xc0e2d0ddL, 0xcda1f604L, 0xc960ebb3L,
- 0xbd3e8d7eL, 0xb9ff90c9L, 0xb4bcb610L, 0xb07daba7L,
- 0xae3afba2L, 0xaafbe615L, 0xa7b8c0ccL, 0xa379dd7bL,
- 0x9b3660c6L, 0x9ff77d71L, 0x92b45ba8L, 0x9675461fL,
- 0x8832161aL, 0x8cf30badL, 0x81b02d74L, 0x857130c3L,
- 0x5d8a9099L, 0x594b8d2eL, 0x5408abf7L, 0x50c9b640L,
- 0x4e8ee645L, 0x4a4ffbf2L, 0x470cdd2bL, 0x43cdc09cL,
- 0x7b827d21L, 0x7f436096L, 0x7200464fL, 0x76c15bf8L,
- 0x68860bfdL, 0x6c47164aL, 0x61043093L, 0x65c52d24L,
- 0x119b4be9L, 0x155a565eL, 0x18197087L, 0x1cd86d30L,
- 0x029f3d35L, 0x065e2082L, 0x0b1d065bL, 0x0fdc1becL,
- 0x3793a651L, 0x3352bbe6L, 0x3e119d3fL, 0x3ad08088L,
- 0x2497d08dL, 0x2056cd3aL, 0x2d15ebe3L, 0x29d4f654L,
- 0xc5a92679L, 0xc1683bceL, 0xcc2b1d17L, 0xc8ea00a0L,
- 0xd6ad50a5L, 0xd26c4d12L, 0xdf2f6bcbL, 0xdbee767cL,
- 0xe3a1cbc1L, 0xe760d676L, 0xea23f0afL, 0xeee2ed18L,
- 0xf0a5bd1dL, 0xf464a0aaL, 0xf9278673L, 0xfde69bc4L,
- 0x89b8fd09L, 0x8d79e0beL, 0x803ac667L, 0x84fbdbd0L,
- 0x9abc8bd5L, 0x9e7d9662L, 0x933eb0bbL, 0x97ffad0cL,
- 0xafb010b1L, 0xab710d06L, 0xa6322bdfL, 0xa2f33668L,
- 0xbcb4666dL, 0xb8757bdaL, 0xb5365d03L, 0xb1f740b4L
-};
-
-
-/*-------------------------------------------------------------*/
-/*--- end crctable.c ---*/
-/*-------------------------------------------------------------*/
+++ /dev/null
-
-/*-------------------------------------------------------------*/
-/*--- Decompression machinery ---*/
-/*--- decompress.c ---*/
-/*-------------------------------------------------------------*/
-
-/* ------------------------------------------------------------------
- This file is part of bzip2/libbzip2, a program and library for
- lossless, block-sorting data compression.
-
- bzip2/libbzip2 version 1.0.6 of 6 September 2010
- Copyright (C) 1996-2010 Julian Seward <jseward@bzip.org>
-
- Please read the WARNING, DISCLAIMER and PATENTS sections in the
- README file.
-
- This program is released under the terms of the license contained
- in the file LICENSE.
- ------------------------------------------------------------------ */
-
-
-#include "bzlib_private.h"
-
-
-/*---------------------------------------------------*/
-static
-void makeMaps_d ( DState* s )
-{
- Int32 i;
- s->nInUse = 0;
- for (i = 0; i < 256; i++)
- if (s->inUse[i]) {
- s->seqToUnseq[s->nInUse] = i;
- s->nInUse++;
- }
-}
-
-
-/*---------------------------------------------------*/
-#define RETURN(rrr) \
- { retVal = rrr; goto save_state_and_return; };
-
-#define GET_BITS(lll,vvv,nnn) \
- case lll: s->state = lll; \
- while (True) { \
- if (s->bsLive >= nnn) { \
- UInt32 v; \
- v = (s->bsBuff >> \
- (s->bsLive-nnn)) & ((1 << nnn)-1); \
- s->bsLive -= nnn; \
- vvv = v; \
- break; \
- } \
- if (s->strm->avail_in == 0) RETURN(BZ_OK); \
- s->bsBuff \
- = (s->bsBuff << 8) | \
- ((UInt32) \
- (*((UChar*)(s->strm->next_in)))); \
- s->bsLive += 8; \
- s->strm->next_in++; \
- s->strm->avail_in--; \
- s->strm->total_in_lo32++; \
- if (s->strm->total_in_lo32 == 0) \
- s->strm->total_in_hi32++; \
- }
-
-#define GET_UCHAR(lll,uuu) \
- GET_BITS(lll,uuu,8)
-
-#define GET_BIT(lll,uuu) \
- GET_BITS(lll,uuu,1)
-
-/*---------------------------------------------------*/
-#define GET_MTF_VAL(label1,label2,lval) \
-{ \
- if (groupPos == 0) { \
- groupNo++; \
- if (groupNo >= nSelectors) \
- RETURN(BZ_DATA_ERROR); \
- groupPos = BZ_G_SIZE; \
- gSel = s->selector[groupNo]; \
- gMinlen = s->minLens[gSel]; \
- gLimit = &(s->limit[gSel][0]); \
- gPerm = &(s->perm[gSel][0]); \
- gBase = &(s->base[gSel][0]); \
- } \
- groupPos--; \
- zn = gMinlen; \
- GET_BITS(label1, zvec, zn); \
- while (1) { \
- if (zn > 20 /* the longest code */) \
- RETURN(BZ_DATA_ERROR); \
- if (zvec <= gLimit[zn]) break; \
- zn++; \
- GET_BIT(label2, zj); \
- zvec = (zvec << 1) | zj; \
- }; \
- if (zvec - gBase[zn] < 0 \
- || zvec - gBase[zn] >= BZ_MAX_ALPHA_SIZE) \
- RETURN(BZ_DATA_ERROR); \
- lval = gPerm[zvec - gBase[zn]]; \
-}
-
-
-/*---------------------------------------------------*/
-Int32 BZ2_decompress ( DState* s )
-{
- UChar uc;
- Int32 retVal;
- Int32 minLen, maxLen;
- bz_stream* strm = s->strm;
-
- /* stuff that needs to be saved/restored */
- Int32 i;
- Int32 j;
- Int32 t;
- Int32 alphaSize;
- Int32 nGroups;
- Int32 nSelectors;
- Int32 EOB;
- Int32 groupNo;
- Int32 groupPos;
- Int32 nextSym;
- Int32 nblockMAX;
- Int32 nblock;
- Int32 es;
- Int32 N;
- Int32 curr;
- Int32 zt;
- Int32 zn;
- Int32 zvec;
- Int32 zj;
- Int32 gSel;
- Int32 gMinlen;
- Int32* gLimit;
- Int32* gBase;
- Int32* gPerm;
-
- if (s->state == BZ_X_MAGIC_1) {
- /*initialise the save area*/
- s->save_i = 0;
- s->save_j = 0;
- s->save_t = 0;
- s->save_alphaSize = 0;
- s->save_nGroups = 0;
- s->save_nSelectors = 0;
- s->save_EOB = 0;
- s->save_groupNo = 0;
- s->save_groupPos = 0;
- s->save_nextSym = 0;
- s->save_nblockMAX = 0;
- s->save_nblock = 0;
- s->save_es = 0;
- s->save_N = 0;
- s->save_curr = 0;
- s->save_zt = 0;
- s->save_zn = 0;
- s->save_zvec = 0;
- s->save_zj = 0;
- s->save_gSel = 0;
- s->save_gMinlen = 0;
- s->save_gLimit = NULL;
- s->save_gBase = NULL;
- s->save_gPerm = NULL;
- }
-
- /*restore from the save area*/
- i = s->save_i;
- j = s->save_j;
- t = s->save_t;
- alphaSize = s->save_alphaSize;
- nGroups = s->save_nGroups;
- nSelectors = s->save_nSelectors;
- EOB = s->save_EOB;
- groupNo = s->save_groupNo;
- groupPos = s->save_groupPos;
- nextSym = s->save_nextSym;
- nblockMAX = s->save_nblockMAX;
- nblock = s->save_nblock;
- es = s->save_es;
- N = s->save_N;
- curr = s->save_curr;
- zt = s->save_zt;
- zn = s->save_zn;
- zvec = s->save_zvec;
- zj = s->save_zj;
- gSel = s->save_gSel;
- gMinlen = s->save_gMinlen;
- gLimit = s->save_gLimit;
- gBase = s->save_gBase;
- gPerm = s->save_gPerm;
-
- retVal = BZ_OK;
-
- switch (s->state) {
-
- GET_UCHAR(BZ_X_MAGIC_1, uc);
- if (uc != BZ_HDR_B) RETURN(BZ_DATA_ERROR_MAGIC);
-
- GET_UCHAR(BZ_X_MAGIC_2, uc);
- if (uc != BZ_HDR_Z) RETURN(BZ_DATA_ERROR_MAGIC);
-
- GET_UCHAR(BZ_X_MAGIC_3, uc)
- if (uc != BZ_HDR_h) RETURN(BZ_DATA_ERROR_MAGIC);
-
- GET_BITS(BZ_X_MAGIC_4, s->blockSize100k, 8)
- if (s->blockSize100k < (BZ_HDR_0 + 1) ||
- s->blockSize100k > (BZ_HDR_0 + 9)) RETURN(BZ_DATA_ERROR_MAGIC);
- s->blockSize100k -= BZ_HDR_0;
-
- if (s->smallDecompress) {
- s->ll16 = BZALLOC( s->blockSize100k * 100000 * sizeof(UInt16) );
- s->ll4 = BZALLOC(
- ((1 + s->blockSize100k * 100000) >> 1) * sizeof(UChar)
- );
- if (s->ll16 == NULL || s->ll4 == NULL) RETURN(BZ_MEM_ERROR);
- } else {
- s->tt = BZALLOC( s->blockSize100k * 100000 * sizeof(Int32) );
- if (s->tt == NULL) RETURN(BZ_MEM_ERROR);
- }
-
- GET_UCHAR(BZ_X_BLKHDR_1, uc);
-
- if (uc == 0x17) goto endhdr_2;
- if (uc != 0x31) RETURN(BZ_DATA_ERROR);
- GET_UCHAR(BZ_X_BLKHDR_2, uc);
- if (uc != 0x41) RETURN(BZ_DATA_ERROR);
- GET_UCHAR(BZ_X_BLKHDR_3, uc);
- if (uc != 0x59) RETURN(BZ_DATA_ERROR);
- GET_UCHAR(BZ_X_BLKHDR_4, uc);
- if (uc != 0x26) RETURN(BZ_DATA_ERROR);
- GET_UCHAR(BZ_X_BLKHDR_5, uc);
- if (uc != 0x53) RETURN(BZ_DATA_ERROR);
- GET_UCHAR(BZ_X_BLKHDR_6, uc);
- if (uc != 0x59) RETURN(BZ_DATA_ERROR);
-
- s->currBlockNo++;
- if (s->verbosity >= 2)
- VPrintf1 ( "\n [%d: huff+mtf ", s->currBlockNo );
-
- s->storedBlockCRC = 0;
- GET_UCHAR(BZ_X_BCRC_1, uc);
- s->storedBlockCRC = (s->storedBlockCRC << 8) | ((UInt32)uc);
- GET_UCHAR(BZ_X_BCRC_2, uc);
- s->storedBlockCRC = (s->storedBlockCRC << 8) | ((UInt32)uc);
- GET_UCHAR(BZ_X_BCRC_3, uc);
- s->storedBlockCRC = (s->storedBlockCRC << 8) | ((UInt32)uc);
- GET_UCHAR(BZ_X_BCRC_4, uc);
- s->storedBlockCRC = (s->storedBlockCRC << 8) | ((UInt32)uc);
-
- GET_BITS(BZ_X_RANDBIT, s->blockRandomised, 1);
-
- s->origPtr = 0;
- GET_UCHAR(BZ_X_ORIGPTR_1, uc);
- s->origPtr = (s->origPtr << 8) | ((Int32)uc);
- GET_UCHAR(BZ_X_ORIGPTR_2, uc);
- s->origPtr = (s->origPtr << 8) | ((Int32)uc);
- GET_UCHAR(BZ_X_ORIGPTR_3, uc);
- s->origPtr = (s->origPtr << 8) | ((Int32)uc);
-
- if (s->origPtr < 0)
- RETURN(BZ_DATA_ERROR);
- if (s->origPtr > 10 + 100000*s->blockSize100k)
- RETURN(BZ_DATA_ERROR);
-
- /*--- Receive the mapping table ---*/
- for (i = 0; i < 16; i++) {
- GET_BIT(BZ_X_MAPPING_1, uc);
- if (uc == 1)
- s->inUse16[i] = True; else
- s->inUse16[i] = False;
- }
-
- for (i = 0; i < 256; i++) s->inUse[i] = False;
-
- for (i = 0; i < 16; i++)
- if (s->inUse16[i])
- for (j = 0; j < 16; j++) {
- GET_BIT(BZ_X_MAPPING_2, uc);
- if (uc == 1) s->inUse[i * 16 + j] = True;
- }
- makeMaps_d ( s );
- if (s->nInUse == 0) RETURN(BZ_DATA_ERROR);
- alphaSize = s->nInUse+2;
-
- /*--- Now the selectors ---*/
- GET_BITS(BZ_X_SELECTOR_1, nGroups, 3);
- if (nGroups < 2 || nGroups > 6) RETURN(BZ_DATA_ERROR);
- GET_BITS(BZ_X_SELECTOR_2, nSelectors, 15);
- if (nSelectors < 1) RETURN(BZ_DATA_ERROR);
- for (i = 0; i < nSelectors; i++) {
- j = 0;
- while (True) {
- GET_BIT(BZ_X_SELECTOR_3, uc);
- if (uc == 0) break;
- j++;
- if (j >= nGroups) RETURN(BZ_DATA_ERROR);
- }
- s->selectorMtf[i] = j;
- }
-
- /*--- Undo the MTF values for the selectors. ---*/
- {
- UChar pos[BZ_N_GROUPS], tmp, v;
- for (v = 0; v < nGroups; v++) pos[v] = v;
-
- for (i = 0; i < nSelectors; i++) {
- v = s->selectorMtf[i];
- tmp = pos[v];
- while (v > 0) { pos[v] = pos[v-1]; v--; }
- pos[0] = tmp;
- s->selector[i] = tmp;
- }
- }
-
- /*--- Now the coding tables ---*/
- for (t = 0; t < nGroups; t++) {
- GET_BITS(BZ_X_CODING_1, curr, 5);
- for (i = 0; i < alphaSize; i++) {
- while (True) {
- if (curr < 1 || curr > 20) RETURN(BZ_DATA_ERROR);
- GET_BIT(BZ_X_CODING_2, uc);
- if (uc == 0) break;
- GET_BIT(BZ_X_CODING_3, uc);
- if (uc == 0) curr++; else curr--;
- }
- s->len[t][i] = curr;
- }
- }
-
- /*--- Create the Huffman decoding tables ---*/
- for (t = 0; t < nGroups; t++) {
- minLen = 32;
- maxLen = 0;
- for (i = 0; i < alphaSize; i++) {
- if (s->len[t][i] > maxLen) maxLen = s->len[t][i];
- if (s->len[t][i] < minLen) minLen = s->len[t][i];
- }
- BZ2_hbCreateDecodeTables (
- &(s->limit[t][0]),
- &(s->base[t][0]),
- &(s->perm[t][0]),
- &(s->len[t][0]),
- minLen, maxLen, alphaSize
- );
- s->minLens[t] = minLen;
- }
-
- /*--- Now the MTF values ---*/
-
- EOB = s->nInUse+1;
- nblockMAX = 100000 * s->blockSize100k;
- groupNo = -1;
- groupPos = 0;
-
- for (i = 0; i <= 255; i++) s->unzftab[i] = 0;
-
- /*-- MTF init --*/
- {
- Int32 ii, jj, kk;
- kk = MTFA_SIZE-1;
- for (ii = 256 / MTFL_SIZE - 1; ii >= 0; ii--) {
- for (jj = MTFL_SIZE-1; jj >= 0; jj--) {
- s->mtfa[kk] = (UChar)(ii * MTFL_SIZE + jj);
- kk--;
- }
- s->mtfbase[ii] = kk + 1;
- }
- }
- /*-- end MTF init --*/
-
- nblock = 0;
- GET_MTF_VAL(BZ_X_MTF_1, BZ_X_MTF_2, nextSym);
-
- while (True) {
-
- if (nextSym == EOB) break;
-
- if (nextSym == BZ_RUNA || nextSym == BZ_RUNB) {
-
- es = -1;
- N = 1;
- do {
- /* Check that N doesn't get too big, so that es doesn't
- go negative. The maximum value that can be
- RUNA/RUNB encoded is equal to the block size (post
- the initial RLE), viz, 900k, so bounding N at 2
- million should guard against overflow without
- rejecting any legitimate inputs. */
- if (N >= 2*1024*1024) RETURN(BZ_DATA_ERROR);
- if (nextSym == BZ_RUNA) es = es + (0+1) * N; else
- if (nextSym == BZ_RUNB) es = es + (1+1) * N;
- N = N * 2;
- GET_MTF_VAL(BZ_X_MTF_3, BZ_X_MTF_4, nextSym);
- }
- while (nextSym == BZ_RUNA || nextSym == BZ_RUNB);
-
- es++;
- uc = s->seqToUnseq[ s->mtfa[s->mtfbase[0]] ];
- s->unzftab[uc] += es;
-
- if (s->smallDecompress)
- while (es > 0) {
- if (nblock >= nblockMAX) RETURN(BZ_DATA_ERROR);
- s->ll16[nblock] = (UInt16)uc;
- nblock++;
- es--;
- }
- else
- while (es > 0) {
- if (nblock >= nblockMAX) RETURN(BZ_DATA_ERROR);
- s->tt[nblock] = (UInt32)uc;
- nblock++;
- es--;
- };
-
- continue;
-
- } else {
-
- if (nblock >= nblockMAX) RETURN(BZ_DATA_ERROR);
-
- /*-- uc = MTF ( nextSym-1 ) --*/
- {
- Int32 ii, jj, kk, pp, lno, off;
- UInt32 nn;
- nn = (UInt32)(nextSym - 1);
-
- if (nn < MTFL_SIZE) {
- /* avoid general-case expense */
- pp = s->mtfbase[0];
- uc = s->mtfa[pp+nn];
- while (nn > 3) {
- Int32 z = pp+nn;
- s->mtfa[(z) ] = s->mtfa[(z)-1];
- s->mtfa[(z)-1] = s->mtfa[(z)-2];
- s->mtfa[(z)-2] = s->mtfa[(z)-3];
- s->mtfa[(z)-3] = s->mtfa[(z)-4];
- nn -= 4;
- }
- while (nn > 0) {
- s->mtfa[(pp+nn)] = s->mtfa[(pp+nn)-1]; nn--;
- };
- s->mtfa[pp] = uc;
- } else {
- /* general case */
- lno = nn / MTFL_SIZE;
- off = nn % MTFL_SIZE;
- pp = s->mtfbase[lno] + off;
- uc = s->mtfa[pp];
- while (pp > s->mtfbase[lno]) {
- s->mtfa[pp] = s->mtfa[pp-1]; pp--;
- };
- s->mtfbase[lno]++;
- while (lno > 0) {
- s->mtfbase[lno]--;
- s->mtfa[s->mtfbase[lno]]
- = s->mtfa[s->mtfbase[lno-1] + MTFL_SIZE - 1];
- lno--;
- }
- s->mtfbase[0]--;
- s->mtfa[s->mtfbase[0]] = uc;
- if (s->mtfbase[0] == 0) {
- kk = MTFA_SIZE-1;
- for (ii = 256 / MTFL_SIZE-1; ii >= 0; ii--) {
- for (jj = MTFL_SIZE-1; jj >= 0; jj--) {
- s->mtfa[kk] = s->mtfa[s->mtfbase[ii] + jj];
- kk--;
- }
- s->mtfbase[ii] = kk + 1;
- }
- }
- }
- }
- /*-- end uc = MTF ( nextSym-1 ) --*/
-
- s->unzftab[s->seqToUnseq[uc]]++;
- if (s->smallDecompress)
- s->ll16[nblock] = (UInt16)(s->seqToUnseq[uc]); else
- s->tt[nblock] = (UInt32)(s->seqToUnseq[uc]);
- nblock++;
-
- GET_MTF_VAL(BZ_X_MTF_5, BZ_X_MTF_6, nextSym);
- continue;
- }
- }
-
- /* Now we know what nblock is, we can do a better sanity
- check on s->origPtr.
- */
- if (s->origPtr < 0 || s->origPtr >= nblock)
- RETURN(BZ_DATA_ERROR);
-
- /*-- Set up cftab to facilitate generation of T^(-1) --*/
- /* Check: unzftab entries in range. */
- for (i = 0; i <= 255; i++) {
- if (s->unzftab[i] < 0 || s->unzftab[i] > nblock)
- RETURN(BZ_DATA_ERROR);
- }
- /* Actually generate cftab. */
- s->cftab[0] = 0;
- for (i = 1; i <= 256; i++) s->cftab[i] = s->unzftab[i-1];
- for (i = 1; i <= 256; i++) s->cftab[i] += s->cftab[i-1];
- /* Check: cftab entries in range. */
- for (i = 0; i <= 256; i++) {
- if (s->cftab[i] < 0 || s->cftab[i] > nblock) {
- /* s->cftab[i] can legitimately be == nblock */
- RETURN(BZ_DATA_ERROR);
- }
- }
- /* Check: cftab entries non-descending. */
- for (i = 1; i <= 256; i++) {
- if (s->cftab[i-1] > s->cftab[i]) {
- RETURN(BZ_DATA_ERROR);
- }
- }
-
- s->state_out_len = 0;
- s->state_out_ch = 0;
- BZ_INITIALISE_CRC ( s->calculatedBlockCRC );
- s->state = BZ_X_OUTPUT;
- if (s->verbosity >= 2) VPrintf0 ( "rt+rld" );
-
- if (s->smallDecompress) {
-
- /*-- Make a copy of cftab, used in generation of T --*/
- for (i = 0; i <= 256; i++) s->cftabCopy[i] = s->cftab[i];
-
- /*-- compute the T vector --*/
- for (i = 0; i < nblock; i++) {
- uc = (UChar)(s->ll16[i]);
- SET_LL(i, s->cftabCopy[uc]);
- s->cftabCopy[uc]++;
- }
-
- /*-- Compute T^(-1) by pointer reversal on T --*/
- i = s->origPtr;
- j = GET_LL(i);
- do {
- Int32 tmp = GET_LL(j);
- SET_LL(j, i);
- i = j;
- j = tmp;
- }
- while (i != s->origPtr);
-
- s->tPos = s->origPtr;
- s->nblock_used = 0;
- if (s->blockRandomised) {
- BZ_RAND_INIT_MASK;
- BZ_GET_SMALL(s->k0); s->nblock_used++;
- BZ_RAND_UPD_MASK; s->k0 ^= BZ_RAND_MASK;
- } else {
- BZ_GET_SMALL(s->k0); s->nblock_used++;
- }
-
- } else {
-
- /*-- compute the T^(-1) vector --*/
- for (i = 0; i < nblock; i++) {
- uc = (UChar)(s->tt[i] & 0xff);
- s->tt[s->cftab[uc]] |= (i << 8);
- s->cftab[uc]++;
- }
-
- s->tPos = s->tt[s->origPtr] >> 8;
- s->nblock_used = 0;
- if (s->blockRandomised) {
- BZ_RAND_INIT_MASK;
- BZ_GET_FAST(s->k0); s->nblock_used++;
- BZ_RAND_UPD_MASK; s->k0 ^= BZ_RAND_MASK;
- } else {
- BZ_GET_FAST(s->k0); s->nblock_used++;
- }
-
- }
-
- RETURN(BZ_OK);
-
-
-
- endhdr_2:
-
- GET_UCHAR(BZ_X_ENDHDR_2, uc);
- if (uc != 0x72) RETURN(BZ_DATA_ERROR);
- GET_UCHAR(BZ_X_ENDHDR_3, uc);
- if (uc != 0x45) RETURN(BZ_DATA_ERROR);
- GET_UCHAR(BZ_X_ENDHDR_4, uc);
- if (uc != 0x38) RETURN(BZ_DATA_ERROR);
- GET_UCHAR(BZ_X_ENDHDR_5, uc);
- if (uc != 0x50) RETURN(BZ_DATA_ERROR);
- GET_UCHAR(BZ_X_ENDHDR_6, uc);
- if (uc != 0x90) RETURN(BZ_DATA_ERROR);
-
- s->storedCombinedCRC = 0;
- GET_UCHAR(BZ_X_CCRC_1, uc);
- s->storedCombinedCRC = (s->storedCombinedCRC << 8) | ((UInt32)uc);
- GET_UCHAR(BZ_X_CCRC_2, uc);
- s->storedCombinedCRC = (s->storedCombinedCRC << 8) | ((UInt32)uc);
- GET_UCHAR(BZ_X_CCRC_3, uc);
- s->storedCombinedCRC = (s->storedCombinedCRC << 8) | ((UInt32)uc);
- GET_UCHAR(BZ_X_CCRC_4, uc);
- s->storedCombinedCRC = (s->storedCombinedCRC << 8) | ((UInt32)uc);
-
- s->state = BZ_X_IDLE;
- RETURN(BZ_STREAM_END);
-
- default: AssertH ( False, 4001 );
- }
-
- AssertH ( False, 4002 );
-
- save_state_and_return:
-
- s->save_i = i;
- s->save_j = j;
- s->save_t = t;
- s->save_alphaSize = alphaSize;
- s->save_nGroups = nGroups;
- s->save_nSelectors = nSelectors;
- s->save_EOB = EOB;
- s->save_groupNo = groupNo;
- s->save_groupPos = groupPos;
- s->save_nextSym = nextSym;
- s->save_nblockMAX = nblockMAX;
- s->save_nblock = nblock;
- s->save_es = es;
- s->save_N = N;
- s->save_curr = curr;
- s->save_zt = zt;
- s->save_zn = zn;
- s->save_zvec = zvec;
- s->save_zj = zj;
- s->save_gSel = gSel;
- s->save_gMinlen = gMinlen;
- s->save_gLimit = gLimit;
- s->save_gBase = gBase;
- s->save_gPerm = gPerm;
-
- return retVal;
-}
-
-
-/*-------------------------------------------------------------*/
-/*--- end decompress.c ---*/
-/*-------------------------------------------------------------*/
+++ /dev/null
-#ifdef BZ_DECOMPRESS_ONLY
-int _stdcall DriverEntry( void *a, void *b );
-
-int _stdcall DriverEntry( void *a, void *b )
-{
- return 1;
-}
-#else
-int _stdcall DllMain( unsigned long a, unsigned long b, unsigned long c )
-{
- return 1;
-}
-#endif
-void bz_internal_error ( int errcode );
-
-void bz_internal_error ( int errcode )
-{
- return;
-}
+++ /dev/null
-/*
- minibz2
- libbz2.dll test program.
- by Yoshioka Tsuneo (tsuneo@rr.iij4u.or.jp)
- This file is Public Domain. Welcome any email to me.
-
- usage: minibz2 [-d] [-{1,2,..9}] [[srcfilename] destfilename]
-*/
-
-#define BZ_IMPORT
-#include <stdio.h>
-#include <stdlib.h>
-#include "bzlib.h"
-#ifdef _WIN32
-#include <io.h>
-#endif
-
-
-#ifdef _WIN32
-
-#define BZ2_LIBNAME "libbz2-1.0.2.DLL"
-
-#include <windows.h>
-static int BZ2DLLLoaded = 0;
-static HINSTANCE BZ2DLLhLib;
-int BZ2DLLLoadLibrary(void)
-{
- HINSTANCE hLib;
-
- if(BZ2DLLLoaded==1){return 0;}
- hLib=LoadLibrary(BZ2_LIBNAME);
- if(hLib == NULL){
- fprintf(stderr,"Can't load %s\n",BZ2_LIBNAME);
- return -1;
- }
- BZ2_bzlibVersion=GetProcAddress(hLib,"BZ2_bzlibVersion");
- BZ2_bzopen=GetProcAddress(hLib,"BZ2_bzopen");
- BZ2_bzdopen=GetProcAddress(hLib,"BZ2_bzdopen");
- BZ2_bzread=GetProcAddress(hLib,"BZ2_bzread");
- BZ2_bzwrite=GetProcAddress(hLib,"BZ2_bzwrite");
- BZ2_bzflush=GetProcAddress(hLib,"BZ2_bzflush");
- BZ2_bzclose=GetProcAddress(hLib,"BZ2_bzclose");
- BZ2_bzerror=GetProcAddress(hLib,"BZ2_bzerror");
-
- if (!BZ2_bzlibVersion || !BZ2_bzopen || !BZ2_bzdopen
- || !BZ2_bzread || !BZ2_bzwrite || !BZ2_bzflush
- || !BZ2_bzclose || !BZ2_bzerror) {
- fprintf(stderr,"GetProcAddress failed.\n");
- return -1;
- }
- BZ2DLLLoaded=1;
- BZ2DLLhLib=hLib;
- return 0;
-
-}
-int BZ2DLLFreeLibrary(void)
-{
- if(BZ2DLLLoaded==0){return 0;}
- FreeLibrary(BZ2DLLhLib);
- BZ2DLLLoaded=0;
-}
-#endif /* WIN32 */
-
-void usage(void)
-{
- puts("usage: minibz2 [-d] [-{1,2,..9}] [[srcfilename] destfilename]");
-}
-
-int main(int argc,char *argv[])
-{
- int decompress = 0;
- int level = 9;
- char *fn_r = NULL;
- char *fn_w = NULL;
-
-#ifdef _WIN32
- if(BZ2DLLLoadLibrary()<0){
- fprintf(stderr,"Loading of %s failed. Giving up.\n", BZ2_LIBNAME);
- exit(1);
- }
- printf("Loading of %s succeeded. Library version is %s.\n",
- BZ2_LIBNAME, BZ2_bzlibVersion() );
-#endif
- while(++argv,--argc){
- if(**argv =='-' || **argv=='/'){
- char *p;
-
- for(p=*argv+1;*p;p++){
- if(*p=='d'){
- decompress = 1;
- }else if('1'<=*p && *p<='9'){
- level = *p - '0';
- }else{
- usage();
- exit(1);
- }
- }
- }else{
- break;
- }
- }
- if(argc>=1){
- fn_r = *argv;
- argc--;argv++;
- }else{
- fn_r = NULL;
- }
- if(argc>=1){
- fn_w = *argv;
- argc--;argv++;
- }else{
- fn_w = NULL;
- }
- {
- int len;
- char buff[0x1000];
- char mode[10];
-
- if(decompress){
- BZFILE *BZ2fp_r = NULL;
- FILE *fp_w = NULL;
-
- if(fn_w){
- if((fp_w = fopen(fn_w,"wb"))==NULL){
- printf("can't open [%s]\n",fn_w);
- perror("reason:");
- exit(1);
- }
- }else{
- fp_w = stdout;
- }
- if((fn_r == NULL && (BZ2fp_r = BZ2_bzdopen(fileno(stdin),"rb"))==NULL)
- || (fn_r != NULL && (BZ2fp_r = BZ2_bzopen(fn_r,"rb"))==NULL)){
- printf("can't bz2openstream\n");
- exit(1);
- }
- while((len=BZ2_bzread(BZ2fp_r,buff,0x1000))>0){
- fwrite(buff,1,len,fp_w);
- }
- BZ2_bzclose(BZ2fp_r);
- if(fp_w != stdout) fclose(fp_w);
- }else{
- BZFILE *BZ2fp_w = NULL;
- FILE *fp_r = NULL;
-
- if(fn_r){
- if((fp_r = fopen(fn_r,"rb"))==NULL){
- printf("can't open [%s]\n",fn_r);
- perror("reason:");
- exit(1);
- }
- }else{
- fp_r = stdin;
- }
- mode[0]='w';
- mode[1] = '0' + level;
- mode[2] = '\0';
-
- if((fn_w == NULL && (BZ2fp_w = BZ2_bzdopen(fileno(stdout),mode))==NULL)
- || (fn_w !=NULL && (BZ2fp_w = BZ2_bzopen(fn_w,mode))==NULL)){
- printf("can't bz2openstream\n");
- exit(1);
- }
- while((len=fread(buff,1,0x1000,fp_r))>0){
- BZ2_bzwrite(BZ2fp_w,buff,len);
- }
- BZ2_bzclose(BZ2fp_w);
- if(fp_r!=stdin)fclose(fp_r);
- }
- }
-#ifdef _WIN32
- BZ2DLLFreeLibrary();
-#endif
- return 0;
-}
+++ /dev/null
-
-/*-------------------------------------------------------------*/
-/*--- Huffman coding low-level stuff ---*/
-/*--- huffman.c ---*/
-/*-------------------------------------------------------------*/
-
-/* ------------------------------------------------------------------
- This file is part of bzip2/libbzip2, a program and library for
- lossless, block-sorting data compression.
-
- bzip2/libbzip2 version 1.0.6 of 6 September 2010
- Copyright (C) 1996-2010 Julian Seward <jseward@bzip.org>
-
- Please read the WARNING, DISCLAIMER and PATENTS sections in the
- README file.
-
- This program is released under the terms of the license contained
- in the file LICENSE.
- ------------------------------------------------------------------ */
-
-
-#include "bzlib_private.h"
-
-/*---------------------------------------------------*/
-#define WEIGHTOF(zz0) ((zz0) & 0xffffff00)
-#define DEPTHOF(zz1) ((zz1) & 0x000000ff)
-#define MYMAX(zz2,zz3) ((zz2) > (zz3) ? (zz2) : (zz3))
-
-#define ADDWEIGHTS(zw1,zw2) \
- (WEIGHTOF(zw1)+WEIGHTOF(zw2)) | \
- (1 + MYMAX(DEPTHOF(zw1),DEPTHOF(zw2)))
-
-#define UPHEAP(z) \
-{ \
- Int32 zz, tmp; \
- zz = z; tmp = heap[zz]; \
- while (weight[tmp] < weight[heap[zz >> 1]]) { \
- heap[zz] = heap[zz >> 1]; \
- zz >>= 1; \
- } \
- heap[zz] = tmp; \
-}
-
-#define DOWNHEAP(z) \
-{ \
- Int32 zz, yy, tmp; \
- zz = z; tmp = heap[zz]; \
- while (True) { \
- yy = zz << 1; \
- if (yy > nHeap) break; \
- if (yy < nHeap && \
- weight[heap[yy+1]] < weight[heap[yy]]) \
- yy++; \
- if (weight[tmp] < weight[heap[yy]]) break; \
- heap[zz] = heap[yy]; \
- zz = yy; \
- } \
- heap[zz] = tmp; \
-}
-
-
-/*---------------------------------------------------*/
-void BZ2_hbMakeCodeLengths ( UChar *len,
- Int32 *freq,
- Int32 alphaSize,
- Int32 maxLen )
-{
- /*--
- Nodes and heap entries run from 1. Entry 0
- for both the heap and nodes is a sentinel.
- --*/
- Int32 nNodes, nHeap, n1, n2, i, j, k;
- Bool tooLong;
-
- Int32 heap [ BZ_MAX_ALPHA_SIZE + 2 ];
- Int32 weight [ BZ_MAX_ALPHA_SIZE * 2 ];
- Int32 parent [ BZ_MAX_ALPHA_SIZE * 2 ];
-
- for (i = 0; i < alphaSize; i++)
- weight[i+1] = (freq[i] == 0 ? 1 : freq[i]) << 8;
-
- while (True) {
-
- nNodes = alphaSize;
- nHeap = 0;
-
- heap[0] = 0;
- weight[0] = 0;
- parent[0] = -2;
-
- for (i = 1; i <= alphaSize; i++) {
- parent[i] = -1;
- nHeap++;
- heap[nHeap] = i;
- UPHEAP(nHeap);
- }
-
- AssertH( nHeap < (BZ_MAX_ALPHA_SIZE+2), 2001 );
-
- while (nHeap > 1) {
- n1 = heap[1]; heap[1] = heap[nHeap]; nHeap--; DOWNHEAP(1);
- n2 = heap[1]; heap[1] = heap[nHeap]; nHeap--; DOWNHEAP(1);
- nNodes++;
- parent[n1] = parent[n2] = nNodes;
- weight[nNodes] = ADDWEIGHTS(weight[n1], weight[n2]);
- parent[nNodes] = -1;
- nHeap++;
- heap[nHeap] = nNodes;
- UPHEAP(nHeap);
- }
-
- AssertH( nNodes < (BZ_MAX_ALPHA_SIZE * 2), 2002 );
-
- tooLong = False;
- for (i = 1; i <= alphaSize; i++) {
- j = 0;
- k = i;
- while (parent[k] >= 0) { k = parent[k]; j++; }
- len[i-1] = j;
- if (j > maxLen) tooLong = True;
- }
-
- if (! tooLong) break;
-
- /* 17 Oct 04: keep-going condition for the following loop used
- to be 'i < alphaSize', which missed the last element,
- theoretically leading to the possibility of the compressor
- looping. However, this count-scaling step is only needed if
- one of the generated Huffman code words is longer than
- maxLen, which up to and including version 1.0.2 was 20 bits,
- which is extremely unlikely. In version 1.0.3 maxLen was
- changed to 17 bits, which has minimal effect on compression
- ratio, but does mean this scaling step is used from time to
- time, enough to verify that it works.
-
- This means that bzip2-1.0.3 and later will only produce
- Huffman codes with a maximum length of 17 bits. However, in
- order to preserve backwards compatibility with bitstreams
- produced by versions pre-1.0.3, the decompressor must still
- handle lengths of up to 20. */
-
- for (i = 1; i <= alphaSize; i++) {
- j = weight[i] >> 8;
- j = 1 + (j / 2);
- weight[i] = j << 8;
- }
- }
-}
-
-
-/*---------------------------------------------------*/
-void BZ2_hbAssignCodes ( Int32 *code,
- UChar *length,
- Int32 minLen,
- Int32 maxLen,
- Int32 alphaSize )
-{
- Int32 n, vec, i;
-
- vec = 0;
- for (n = minLen; n <= maxLen; n++) {
- for (i = 0; i < alphaSize; i++)
- if (length[i] == n) { code[i] = vec; vec++; };
- vec <<= 1;
- }
-}
-
-
-/*---------------------------------------------------*/
-void BZ2_hbCreateDecodeTables ( Int32 *limit,
- Int32 *base,
- Int32 *perm,
- UChar *length,
- Int32 minLen,
- Int32 maxLen,
- Int32 alphaSize )
-{
- Int32 pp, i, j, vec;
-
- pp = 0;
- for (i = minLen; i <= maxLen; i++)
- for (j = 0; j < alphaSize; j++)
- if (length[j] == i) { perm[pp] = j; pp++; };
-
- for (i = 0; i < BZ_MAX_CODE_LEN; i++) base[i] = 0;
- for (i = 0; i < alphaSize; i++) base[length[i]+1]++;
-
- for (i = 1; i < BZ_MAX_CODE_LEN; i++) base[i] += base[i-1];
-
- for (i = 0; i < BZ_MAX_CODE_LEN; i++) limit[i] = 0;
- vec = 0;
-
- for (i = minLen; i <= maxLen; i++) {
- vec += (base[i+1] - base[i]);
- limit[i] = vec-1;
- vec <<= 1;
- }
- for (i = minLen + 1; i <= maxLen; i++)
- base[i] = ((limit[i-1] + 1) << 1) - base[i];
-}
-
-
-/*-------------------------------------------------------------*/
-/*--- end huffman.c ---*/
-/*-------------------------------------------------------------*/
+++ /dev/null
-LIBRARY LIBBZ2
-DESCRIPTION "libbzip2: library for data compression"
-EXPORTS
- BZ2_bzCompressInit
- BZ2_bzCompress
- BZ2_bzCompressEnd
- BZ2_bzDecompressInit
- BZ2_bzDecompress
- BZ2_bzDecompressEnd
- BZ2_bzReadOpen
- BZ2_bzReadClose
- BZ2_bzReadGetUnused
- BZ2_bzRead
- BZ2_bzWriteOpen
- BZ2_bzWrite
- BZ2_bzWriteClose
- BZ2_bzWriteClose64
- BZ2_bzBuffToBuffCompress
- BZ2_bzBuffToBuffDecompress
- BZ2_bzlibVersion
- BZ2_bzopen
- BZ2_bzdopen
- BZ2_bzread
- BZ2_bzwrite
- BZ2_bzflush
- BZ2_bzclose
- BZ2_bzerror
+++ /dev/null
-
-/*-------------------------------------------------------------*/
-/*--- Table for randomising repetitive blocks ---*/
-/*--- randtable.c ---*/
-/*-------------------------------------------------------------*/
-
-/* ------------------------------------------------------------------
- This file is part of bzip2/libbzip2, a program and library for
- lossless, block-sorting data compression.
-
- bzip2/libbzip2 version 1.0.6 of 6 September 2010
- Copyright (C) 1996-2010 Julian Seward <jseward@bzip.org>
-
- Please read the WARNING, DISCLAIMER and PATENTS sections in the
- README file.
-
- This program is released under the terms of the license contained
- in the file LICENSE.
- ------------------------------------------------------------------ */
-
-
-#include "bzlib_private.h"
-
-
-/*---------------------------------------------*/
-Int32 BZ2_rNums[512] = {
- 619, 720, 127, 481, 931, 816, 813, 233, 566, 247,
- 985, 724, 205, 454, 863, 491, 741, 242, 949, 214,
- 733, 859, 335, 708, 621, 574, 73, 654, 730, 472,
- 419, 436, 278, 496, 867, 210, 399, 680, 480, 51,
- 878, 465, 811, 169, 869, 675, 611, 697, 867, 561,
- 862, 687, 507, 283, 482, 129, 807, 591, 733, 623,
- 150, 238, 59, 379, 684, 877, 625, 169, 643, 105,
- 170, 607, 520, 932, 727, 476, 693, 425, 174, 647,
- 73, 122, 335, 530, 442, 853, 695, 249, 445, 515,
- 909, 545, 703, 919, 874, 474, 882, 500, 594, 612,
- 641, 801, 220, 162, 819, 984, 589, 513, 495, 799,
- 161, 604, 958, 533, 221, 400, 386, 867, 600, 782,
- 382, 596, 414, 171, 516, 375, 682, 485, 911, 276,
- 98, 553, 163, 354, 666, 933, 424, 341, 533, 870,
- 227, 730, 475, 186, 263, 647, 537, 686, 600, 224,
- 469, 68, 770, 919, 190, 373, 294, 822, 808, 206,
- 184, 943, 795, 384, 383, 461, 404, 758, 839, 887,
- 715, 67, 618, 276, 204, 918, 873, 777, 604, 560,
- 951, 160, 578, 722, 79, 804, 96, 409, 713, 940,
- 652, 934, 970, 447, 318, 353, 859, 672, 112, 785,
- 645, 863, 803, 350, 139, 93, 354, 99, 820, 908,
- 609, 772, 154, 274, 580, 184, 79, 626, 630, 742,
- 653, 282, 762, 623, 680, 81, 927, 626, 789, 125,
- 411, 521, 938, 300, 821, 78, 343, 175, 128, 250,
- 170, 774, 972, 275, 999, 639, 495, 78, 352, 126,
- 857, 956, 358, 619, 580, 124, 737, 594, 701, 612,
- 669, 112, 134, 694, 363, 992, 809, 743, 168, 974,
- 944, 375, 748, 52, 600, 747, 642, 182, 862, 81,
- 344, 805, 988, 739, 511, 655, 814, 334, 249, 515,
- 897, 955, 664, 981, 649, 113, 974, 459, 893, 228,
- 433, 837, 553, 268, 926, 240, 102, 654, 459, 51,
- 686, 754, 806, 760, 493, 403, 415, 394, 687, 700,
- 946, 670, 656, 610, 738, 392, 760, 799, 887, 653,
- 978, 321, 576, 617, 626, 502, 894, 679, 243, 440,
- 680, 879, 194, 572, 640, 724, 926, 56, 204, 700,
- 707, 151, 457, 449, 797, 195, 791, 558, 945, 679,
- 297, 59, 87, 824, 713, 663, 412, 693, 342, 606,
- 134, 108, 571, 364, 631, 212, 174, 643, 304, 329,
- 343, 97, 430, 751, 497, 314, 983, 374, 822, 928,
- 140, 206, 73, 263, 980, 736, 876, 478, 430, 305,
- 170, 514, 364, 692, 829, 82, 855, 953, 676, 246,
- 369, 970, 294, 750, 807, 827, 150, 790, 288, 923,
- 804, 378, 215, 828, 592, 281, 565, 555, 710, 82,
- 896, 831, 547, 261, 524, 462, 293, 465, 502, 56,
- 661, 821, 976, 991, 658, 869, 905, 758, 745, 193,
- 768, 550, 608, 933, 378, 286, 215, 979, 792, 961,
- 61, 688, 793, 644, 986, 403, 106, 366, 905, 644,
- 372, 567, 466, 434, 645, 210, 389, 550, 919, 135,
- 780, 773, 635, 389, 707, 100, 626, 958, 165, 504,
- 920, 176, 193, 713, 857, 265, 203, 50, 668, 108,
- 645, 990, 626, 197, 510, 357, 358, 850, 858, 364,
- 936, 638
-};
-
-
-/*-------------------------------------------------------------*/
-/*--- end randtable.c ---*/
-/*-------------------------------------------------------------*/
+++ /dev/null
-
-/* spew out a thoroughly gigantic file designed so that bzip2
- can compress it reasonably rapidly. This is to help test
- support for large files (> 2GB) in a reasonable amount of time.
- I suggest you use the undocumented --exponential option to
- bzip2 when compressing the resulting file; this saves a bit of
- time. Note: *don't* bother with --exponential when compressing
- Real Files; it'll just waste a lot of CPU time :-)
- (but is otherwise harmless).
-*/
-
-/* ------------------------------------------------------------------
- This file is part of bzip2/libbzip2, a program and library for
- lossless, block-sorting data compression.
-
- bzip2/libbzip2 version 1.0.6 of 6 September 2010
- Copyright (C) 1996-2010 Julian Seward <jseward@bzip.org>
-
- Please read the WARNING, DISCLAIMER and PATENTS sections in the
- README file.
-
- This program is released under the terms of the license contained
- in the file LICENSE.
- ------------------------------------------------------------------ */
-
-
-#define _FILE_OFFSET_BITS 64
-
-#include <stdio.h>
-#include <stdlib.h>
-
-/* The number of megabytes of junk to spew out (roughly) */
-#define MEGABYTES 5000
-
-#define N_BUF 1000000
-char buf[N_BUF];
-
-int main ( int argc, char** argv )
-{
- int ii, kk, p;
- srandom(1);
- setbuffer ( stdout, buf, N_BUF );
- for (kk = 0; kk < MEGABYTES * 515; kk+=3) {
- p = 25+random()%50;
- for (ii = 0; ii < p; ii++)
- printf ( "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" );
- for (ii = 0; ii < p-1; ii++)
- printf ( "bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb" );
- for (ii = 0; ii < p+1; ii++)
- printf ( "ccccccccccccccccccccccccccccccccccccc" );
- }
- fflush(stdout);
- return 0;
-}
+++ /dev/null
- @ stdcall BZ2_bzBuffToBuffDecompress(str ptr str long long long)
+++ /dev/null
-
-/* A test program written to test robustness to decompression of
- corrupted data. Usage is
- unzcrash filename
- and the program will read the specified file, compress it (in memory),
- and then repeatedly decompress it, each time with a different bit of
- the compressed data inverted, so as to test all possible one-bit errors.
- This should not cause any invalid memory accesses. If it does,
- I want to know about it!
-
- PS. As you can see from the above description, the process is
- incredibly slow. A file of size eg 5KB will cause it to run for
- many hours.
-*/
-
-/* ------------------------------------------------------------------
- This file is part of bzip2/libbzip2, a program and library for
- lossless, block-sorting data compression.
-
- bzip2/libbzip2 version 1.0.6 of 6 September 2010
- Copyright (C) 1996-2010 Julian Seward <jseward@bzip.org>
-
- Please read the WARNING, DISCLAIMER and PATENTS sections in the
- README file.
-
- This program is released under the terms of the license contained
- in the file LICENSE.
- ------------------------------------------------------------------ */
-
-
-#include <stdio.h>
-#include <assert.h>
-#include "bzlib.h"
-
-#define M_BLOCK 1000000
-
-typedef unsigned char uchar;
-
-#define M_BLOCK_OUT (M_BLOCK + 1000000)
-uchar inbuf[M_BLOCK];
-uchar outbuf[M_BLOCK_OUT];
-uchar zbuf[M_BLOCK + 600 + (M_BLOCK / 100)];
-
-int nIn, nOut, nZ;
-
-static char *bzerrorstrings[] = {
- "OK"
- ,"SEQUENCE_ERROR"
- ,"PARAM_ERROR"
- ,"MEM_ERROR"
- ,"DATA_ERROR"
- ,"DATA_ERROR_MAGIC"
- ,"IO_ERROR"
- ,"UNEXPECTED_EOF"
- ,"OUTBUFF_FULL"
- ,"???" /* for future */
- ,"???" /* for future */
- ,"???" /* for future */
- ,"???" /* for future */
- ,"???" /* for future */
- ,"???" /* for future */
-};
-
-void flip_bit ( int bit )
-{
- int byteno = bit / 8;
- int bitno = bit % 8;
- uchar mask = 1 << bitno;
- //fprintf ( stderr, "(byte %d bit %d mask %d)",
- // byteno, bitno, (int)mask );
- zbuf[byteno] ^= mask;
-}
-
-int main ( int argc, char** argv )
-{
- FILE* f;
- int r;
- int bit;
- int i;
-
- if (argc != 2) {
- fprintf ( stderr, "usage: unzcrash filename\n" );
- return 1;
- }
-
- f = fopen ( argv[1], "r" );
- if (!f) {
- fprintf ( stderr, "unzcrash: can't open %s\n", argv[1] );
- return 1;
- }
-
- nIn = fread ( inbuf, 1, M_BLOCK, f );
- fprintf ( stderr, "%d bytes read\n", nIn );
-
- nZ = M_BLOCK;
- r = BZ2_bzBuffToBuffCompress (
- zbuf, &nZ, inbuf, nIn, 9, 0, 30 );
-
- assert (r == BZ_OK);
- fprintf ( stderr, "%d after compression\n", nZ );
-
- for (bit = 0; bit < nZ*8; bit++) {
- fprintf ( stderr, "bit %d ", bit );
- flip_bit ( bit );
- nOut = M_BLOCK_OUT;
- r = BZ2_bzBuffToBuffDecompress (
- outbuf, &nOut, zbuf, nZ, 0, 0 );
- fprintf ( stderr, " %d %s ", r, bzerrorstrings[-r] );
-
- if (r != BZ_OK) {
- fprintf ( stderr, "\n" );
- } else {
- if (nOut != nIn) {
- fprintf(stderr, "nIn/nOut mismatch %d %d\n", nIn, nOut );
- return 1;
- } else {
- for (i = 0; i < nOut; i++)
- if (inbuf[i] != outbuf[i]) {
- fprintf(stderr, "mismatch at %d\n", i );
- return 1;
- }
- if (i == nOut) fprintf(stderr, "really ok!\n" );
- }
- }
-
- flip_bit ( bit );
- }
-
-#if 0
- assert (nOut == nIn);
- for (i = 0; i < nOut; i++) {
- if (inbuf[i] != outbuf[i]) {
- fprintf ( stderr, "difference at %d !\n", i );
- return 1;
- }
- }
-#endif
-
- fprintf ( stderr, "all ok\n" );
- return 0;
-}
projects / reactos.git / commitdiff