| |
| |
| 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 someway, 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. |
