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15ee0650 | 1 | diff -Nru bzip2-1.0.2/AUTHORS bzip2-1.0.2.new/AUTHORS |
2 | --- bzip2-1.0.2/AUTHORS Thu Jan 1 01:00:00 1970 | |
3 | +++ bzip2-1.0.2.new/AUTHORS Fri Feb 1 04:18:59 2002 | |
d967e3ec | 4 | @@ -0,0 +1 @@ |
5 | +Julian Seward <jseward@acm.org> | |
15ee0650 | 6 | diff -Nru bzip2-1.0.2/CHANGES bzip2-1.0.2.new/CHANGES |
7 | --- bzip2-1.0.2/CHANGES Sat Jan 26 01:02:57 2002 | |
8 | +++ bzip2-1.0.2.new/CHANGES Thu Jan 1 01:00:00 1970 | |
9 | @@ -1,253 +0,0 @@ | |
d967e3ec | 10 | - |
11 | - | |
12 | -0.9.0 | |
13 | -~~~~~ | |
14 | -First version. | |
15 | - | |
16 | - | |
17 | -0.9.0a | |
18 | -~~~~~~ | |
19 | -Removed 'ranlib' from Makefile, since most modern Unix-es | |
20 | -don't need it, or even know about it. | |
21 | - | |
22 | - | |
23 | -0.9.0b | |
24 | -~~~~~~ | |
25 | -Fixed a problem with error reporting in bzip2.c. This does not effect | |
26 | -the library in any way. Problem is: versions 0.9.0 and 0.9.0a (of the | |
27 | -program proper) compress and decompress correctly, but give misleading | |
28 | -error messages (internal panics) when an I/O error occurs, instead of | |
29 | -reporting the problem correctly. This shouldn't give any data loss | |
30 | -(as far as I can see), but is confusing. | |
31 | - | |
32 | -Made the inline declarations disappear for non-GCC compilers. | |
33 | - | |
34 | - | |
35 | -0.9.0c | |
36 | -~~~~~~ | |
37 | -Fixed some problems in the library pertaining to some boundary cases. | |
38 | -This makes the library behave more correctly in those situations. The | |
39 | -fixes apply only to features (calls and parameters) not used by | |
40 | -bzip2.c, so the non-fixedness of them in previous versions has no | |
41 | -effect on reliability of bzip2.c. | |
42 | - | |
43 | -In bzlib.c: | |
44 | - * made zero-length BZ_FLUSH work correctly in bzCompress(). | |
45 | - * fixed bzWrite/bzRead to ignore zero-length requests. | |
46 | - * fixed bzread to correctly handle read requests after EOF. | |
47 | - * wrong parameter order in call to bzDecompressInit in | |
48 | - bzBuffToBuffDecompress. Fixed. | |
49 | - | |
50 | -In compress.c: | |
51 | - * changed setting of nGroups in sendMTFValues() so as to | |
52 | - do a bit better on small files. This _does_ effect | |
53 | - bzip2.c. | |
54 | - | |
55 | - | |
56 | -0.9.5a | |
57 | -~~~~~~ | |
58 | -Major change: add a fallback sorting algorithm (blocksort.c) | |
59 | -to give reasonable behaviour even for very repetitive inputs. | |
60 | -Nuked --repetitive-best and --repetitive-fast since they are | |
61 | -no longer useful. | |
62 | - | |
63 | -Minor changes: mostly a whole bunch of small changes/ | |
64 | -bugfixes in the driver (bzip2.c). Changes pertaining to the | |
65 | -user interface are: | |
66 | - | |
67 | - allow decompression of symlink'd files to stdout | |
68 | - decompress/test files even without .bz2 extension | |
69 | - give more accurate error messages for I/O errors | |
70 | - when compressing/decompressing to stdout, don't catch control-C | |
71 | - read flags from BZIP2 and BZIP environment variables | |
72 | - decline to break hard links to a file unless forced with -f | |
73 | - allow -c flag even with no filenames | |
74 | - preserve file ownerships as far as possible | |
75 | - make -s -1 give the expected block size (100k) | |
76 | - add a flag -q --quiet to suppress nonessential warnings | |
77 | - stop decoding flags after --, so files beginning in - can be handled | |
78 | - resolved inconsistent naming: bzcat or bz2cat ? | |
79 | - bzip2 --help now returns 0 | |
80 | - | |
81 | -Programming-level changes are: | |
82 | - | |
83 | - fixed syntax error in GET_LL4 for Borland C++ 5.02 | |
84 | - let bzBuffToBuffDecompress return BZ_DATA_ERROR{_MAGIC} | |
85 | - fix overshoot of mode-string end in bzopen_or_bzdopen | |
86 | - wrapped bzlib.h in #ifdef __cplusplus ... extern "C" { ... } | |
87 | - close file handles under all error conditions | |
88 | - added minor mods so it compiles with DJGPP out of the box | |
89 | - fixed Makefile so it doesn't give problems with BSD make | |
90 | - fix uninitialised memory reads in dlltest.c | |
91 | - | |
92 | -0.9.5b | |
93 | -~~~~~~ | |
94 | -Open stdin/stdout in binary mode for DJGPP. | |
95 | - | |
96 | -0.9.5c | |
97 | -~~~~~~ | |
98 | -Changed BZ_N_OVERSHOOT to be ... + 2 instead of ... + 1. The + 1 | |
99 | -version could cause the sorted order to be wrong in some extremely | |
100 | -obscure cases. Also changed setting of quadrant in blocksort.c. | |
101 | - | |
102 | -0.9.5d | |
103 | -~~~~~~ | |
104 | -The only functional change is to make bzlibVersion() in the library | |
105 | -return the correct string. This has no effect whatsoever on the | |
106 | -functioning of the bzip2 program or library. Added a couple of casts | |
107 | -so the library compiles without warnings at level 3 in MS Visual | |
108 | -Studio 6.0. Included a Y2K statement in the file Y2K_INFO. All other | |
109 | -changes are minor documentation changes. | |
110 | - | |
111 | -1.0 | |
112 | -~~~ | |
113 | -Several minor bugfixes and enhancements: | |
114 | - | |
115 | -* Large file support. The library uses 64-bit counters to | |
116 | - count the volume of data passing through it. bzip2.c | |
117 | - is now compiled with -D_FILE_OFFSET_BITS=64 to get large | |
118 | - file support from the C library. -v correctly prints out | |
119 | - file sizes greater than 4 gigabytes. All these changes have | |
120 | - been made without assuming a 64-bit platform or a C compiler | |
121 | - which supports 64-bit ints, so, except for the C library | |
122 | - aspect, they are fully portable. | |
123 | - | |
124 | -* Decompression robustness. The library/program should be | |
125 | - robust to any corruption of compressed data, detecting and | |
126 | - handling _all_ corruption, instead of merely relying on | |
127 | - the CRCs. What this means is that the program should | |
128 | - never crash, given corrupted data, and the library should | |
129 | - always return BZ_DATA_ERROR. | |
130 | - | |
131 | -* Fixed an obscure race-condition bug only ever observed on | |
132 | - Solaris, in which, if you were very unlucky and issued | |
133 | - control-C at exactly the wrong time, both input and output | |
134 | - files would be deleted. | |
135 | - | |
136 | -* Don't run out of file handles on test/decompression when | |
137 | - large numbers of files have invalid magic numbers. | |
138 | - | |
139 | -* Avoid library namespace pollution. Prefix all exported | |
140 | - symbols with BZ2_. | |
141 | - | |
142 | -* Minor sorting enhancements from my DCC2000 paper. | |
143 | - | |
144 | -* Advance the version number to 1.0, so as to counteract the | |
145 | - (false-in-this-case) impression some people have that programs | |
15ee0650 | 146 | - with version numbers less than 1.0 are in some way, experimental, |
d967e3ec | 147 | - pre-release versions. |
148 | - | |
149 | -* Create an initial Makefile-libbz2_so to build a shared library. | |
150 | - Yes, I know I should really use libtool et al ... | |
151 | - | |
152 | -* Make the program exit with 2 instead of 0 when decompression | |
153 | - fails due to a bad magic number (ie, an invalid bzip2 header). | |
154 | - Also exit with 1 (as the manual claims :-) whenever a diagnostic | |
155 | - message would have been printed AND the corresponding operation | |
156 | - is aborted, for example | |
157 | - bzip2: Output file xx already exists. | |
158 | - When a diagnostic message is printed but the operation is not | |
159 | - aborted, for example | |
160 | - bzip2: Can't guess original name for wurble -- using wurble.out | |
161 | - then the exit value 0 is returned, unless some other problem is | |
162 | - also detected. | |
163 | - | |
164 | - I think it corresponds more closely to what the manual claims now. | |
165 | - | |
166 | - | |
167 | -1.0.1 | |
168 | -~~~~~ | |
169 | -* Modified dlltest.c so it uses the new BZ2_ naming scheme. | |
170 | -* Modified makefile-msc to fix minor build probs on Win2k. | |
171 | -* Updated README.COMPILATION.PROBLEMS. | |
172 | - | |
173 | -There are no functionality changes or bug fixes relative to version | |
174 | -1.0.0. This is just a documentation update + a fix for minor Win32 | |
175 | -build problems. For almost everyone, upgrading from 1.0.0 to 1.0.1 is | |
176 | -utterly pointless. Don't bother. | |
15ee0650 | 177 | - |
178 | - | |
179 | -1.0.2 | |
180 | -~~~~~ | |
181 | -A bug fix release, addressing various minor issues which have appeared | |
182 | -in the 18 or so months since 1.0.1 was released. Most of the fixes | |
183 | -are to do with file-handling or documentation bugs. To the best of my | |
184 | -knowledge, there have been no data-loss-causing bugs reported in the | |
185 | -compression/decompression engine of 1.0.0 or 1.0.1. | |
186 | - | |
187 | -Note that this release does not improve the rather crude build system | |
188 | -for Unix platforms. The general plan here is to autoconfiscate/ | |
189 | -libtoolise 1.0.2 soon after release, and release the result as 1.1.0 | |
190 | -or perhaps 1.2.0. That, however, is still just a plan at this point. | |
191 | - | |
192 | -Here are the changes in 1.0.2. Bug-reporters and/or patch-senders in | |
193 | -parentheses. | |
194 | - | |
195 | -* Fix an infinite segfault loop in 1.0.1 when a directory is | |
196 | - encountered in -f (force) mode. | |
197 | - (Trond Eivind Glomsrod, Nicholas Nethercote, Volker Schmidt) | |
198 | - | |
199 | -* Avoid double fclose() of output file on certain I/O error paths. | |
200 | - (Solar Designer) | |
201 | - | |
202 | -* Don't fail with internal error 1007 when fed a long stream (> 48MB) | |
203 | - of byte 251. Also print useful message suggesting that 1007s may be | |
204 | - caused by bad memory. | |
205 | - (noticed by Juan Pedro Vallejo, fixed by me) | |
206 | - | |
207 | -* Fix uninitialised variable silly bug in demo prog dlltest.c. | |
208 | - (Jorj Bauer) | |
209 | - | |
210 | -* Remove 512-MB limitation on recovered file size for bzip2recover | |
211 | - on selected platforms which support 64-bit ints. At the moment | |
212 | - all GCC supported platforms, and Win32. | |
213 | - (me, Alson van der Meulen) | |
214 | - | |
215 | -* Hard-code header byte values, to give correct operation on platforms | |
216 | - using EBCDIC as their native character set (IBM's OS/390). | |
217 | - (Leland Lucius) | |
218 | - | |
219 | -* Copy file access times correctly. | |
220 | - (Marty Leisner) | |
221 | - | |
222 | -* Add distclean and check targets to Makefile. | |
223 | - (Michael Carmack) | |
224 | - | |
225 | -* Parameterise use of ar and ranlib in Makefile. Also add $(LDFLAGS). | |
226 | - (Rich Ireland, Bo Thorsen) | |
227 | - | |
228 | -* Pass -p (create parent dirs as needed) to mkdir during make install. | |
229 | - (Jeremy Fusco) | |
230 | - | |
231 | -* Dereference symlinks when copying file permissions in -f mode. | |
232 | - (Volker Schmidt) | |
233 | - | |
234 | -* Majorly simplify implementation of uInt64_qrm10. | |
235 | - (Bo Lindbergh) | |
236 | - | |
237 | -* Check the input file still exists before deleting the output one, | |
238 | - when aborting in cleanUpAndFail(). | |
239 | - (Joerg Prante, Robert Linden, Matthias Krings) | |
240 | - | |
241 | -Also a bunch of patches courtesy of Philippe Troin, the Debian maintainer | |
242 | -of bzip2: | |
243 | - | |
244 | -* Wrapper scripts (with manpages): bzdiff, bzgrep, bzmore. | |
245 | - | |
246 | -* Spelling changes and minor enhancements in bzip2.1. | |
247 | - | |
248 | -* Avoid race condition between creating the output file and setting its | |
249 | - interim permissions safely, by using fopen_output_safely(). | |
250 | - No changes to bzip2recover since there is no issue with file | |
251 | - permissions there. | |
252 | - | |
253 | -* do not print senseless report with -v when compressing an empty | |
254 | - file. | |
255 | - | |
256 | -* bzcat -f works on non-bzip2 files. | |
257 | - | |
258 | -* do not try to escape shell meta-characters on unix (the shell takes | |
259 | - care of these). | |
260 | - | |
261 | -* added --fast and --best aliases for -1 -9 for gzip compatibility. | |
262 | - | |
263 | diff -Nru bzip2-1.0.2/COPYING bzip2-1.0.2.new/COPYING | |
264 | --- bzip2-1.0.2/COPYING Thu Jan 1 01:00:00 1970 | |
265 | +++ bzip2-1.0.2.new/COPYING Wed Jan 2 05:12:07 2002 | |
d967e3ec | 266 | @@ -0,0 +1,39 @@ |
267 | + | |
268 | +This program, "bzip2" and associated library "libbzip2", are | |
15ee0650 | 269 | +copyright (C) 1996-2002 Julian R Seward. All rights reserved. |
d967e3ec | 270 | + |
271 | +Redistribution and use in source and binary forms, with or without | |
272 | +modification, are permitted provided that the following conditions | |
273 | +are met: | |
274 | + | |
275 | +1. Redistributions of source code must retain the above copyright | |
276 | + notice, this list of conditions and the following disclaimer. | |
277 | + | |
278 | +2. The origin of this software must not be misrepresented; you must | |
279 | + not claim that you wrote the original software. If you use this | |
280 | + software in a product, an acknowledgment in the product | |
281 | + documentation would be appreciated but is not required. | |
282 | + | |
283 | +3. Altered source versions must be plainly marked as such, and must | |
284 | + not be misrepresented as being the original software. | |
285 | + | |
286 | +4. The name of the author may not be used to endorse or promote | |
287 | + products derived from this software without specific prior written | |
288 | + permission. | |
289 | + | |
290 | +THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS | |
291 | +OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED | |
292 | +WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE | |
293 | +ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY | |
294 | +DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL | |
295 | +DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE | |
296 | +GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS | |
297 | +INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, | |
298 | +WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING | |
299 | +NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS | |
300 | +SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | |
301 | + | |
302 | +Julian Seward, Cambridge, UK. | |
303 | +jseward@acm.org | |
15ee0650 | 304 | +bzip2/libbzip2 version 1.0.2 of 30 December 2001 |
d967e3ec | 305 | + |
15ee0650 | 306 | diff -Nru bzip2-1.0.2/ChangeLog bzip2-1.0.2.new/ChangeLog |
307 | --- bzip2-1.0.2/ChangeLog Thu Jan 1 01:00:00 1970 | |
308 | +++ bzip2-1.0.2.new/ChangeLog Fri Feb 1 04:19:04 2002 | |
d967e3ec | 309 | @@ -0,0 +1 @@ |
310 | + | |
15ee0650 | 311 | diff -Nru bzip2-1.0.2/INSTALL bzip2-1.0.2.new/INSTALL |
312 | --- bzip2-1.0.2/INSTALL Thu Jan 1 01:00:00 1970 | |
313 | +++ bzip2-1.0.2.new/INSTALL Fri Feb 1 04:19:04 2002 | |
d967e3ec | 314 | @@ -0,0 +1,182 @@ |
315 | +Basic Installation | |
316 | +================== | |
317 | + | |
318 | + These are generic installation instructions. | |
319 | + | |
320 | + The `configure' shell script attempts to guess correct values for | |
321 | +various system-dependent variables used during compilation. It uses | |
322 | +those values to create a `Makefile' in each directory of the package. | |
323 | +It may also create one or more `.h' files containing system-dependent | |
324 | +definitions. Finally, it creates a shell script `config.status' that | |
325 | +you can run in the future to recreate the current configuration, a file | |
326 | +`config.cache' that saves the results of its tests to speed up | |
327 | +reconfiguring, and a file `config.log' containing compiler output | |
328 | +(useful mainly for debugging `configure'). | |
329 | + | |
330 | + If you need to do unusual things to compile the package, please try | |
331 | +to figure out how `configure' could check whether to do them, and mail | |
332 | +diffs or instructions to the address given in the `README' so they can | |
333 | +be considered for the next release. If at some point `config.cache' | |
334 | +contains results you don't want to keep, you may remove or edit it. | |
335 | + | |
336 | + The file `configure.in' is used to create `configure' by a program | |
337 | +called `autoconf'. You only need `configure.in' if you want to change | |
338 | +it or regenerate `configure' using a newer version of `autoconf'. | |
339 | + | |
340 | +The simplest way to compile this package is: | |
341 | + | |
342 | + 1. `cd' to the directory containing the package's source code and type | |
343 | + `./configure' to configure the package for your system. If you're | |
344 | + using `csh' on an old version of System V, you might need to type | |
345 | + `sh ./configure' instead to prevent `csh' from trying to execute | |
346 | + `configure' itself. | |
347 | + | |
348 | + Running `configure' takes awhile. While running, it prints some | |
349 | + messages telling which features it is checking for. | |
350 | + | |
351 | + 2. Type `make' to compile the package. | |
352 | + | |
353 | + 3. Optionally, type `make check' to run any self-tests that come with | |
354 | + the package. | |
355 | + | |
356 | + 4. Type `make install' to install the programs and any data files and | |
357 | + documentation. | |
358 | + | |
359 | + 5. You can remove the program binaries and object files from the | |
360 | + source code directory by typing `make clean'. To also remove the | |
361 | + files that `configure' created (so you can compile the package for | |
362 | + a different kind of computer), type `make distclean'. There is | |
363 | + also a `make maintainer-clean' target, but that is intended mainly | |
364 | + for the package's developers. If you use it, you may have to get | |
365 | + all sorts of other programs in order to regenerate files that came | |
366 | + with the distribution. | |
367 | + | |
368 | +Compilers and Options | |
369 | +===================== | |
370 | + | |
371 | + Some systems require unusual options for compilation or linking that | |
372 | +the `configure' script does not know about. You can give `configure' | |
373 | +initial values for variables by setting them in the environment. Using | |
374 | +a Bourne-compatible shell, you can do that on the command line like | |
375 | +this: | |
376 | + CC=c89 CFLAGS=-O2 LIBS=-lposix ./configure | |
377 | + | |
378 | +Or on systems that have the `env' program, you can do it like this: | |
379 | + env CPPFLAGS=-I/usr/local/include LDFLAGS=-s ./configure | |
380 | + | |
381 | +Compiling For Multiple Architectures | |
382 | +==================================== | |
383 | + | |
384 | + You can compile the package for more than one kind of computer at the | |
385 | +same time, by placing the object files for each architecture in their | |
386 | +own directory. To do this, you must use a version of `make' that | |
387 | +supports the `VPATH' variable, such as GNU `make'. `cd' to the | |
388 | +directory where you want the object files and executables to go and run | |
389 | +the `configure' script. `configure' automatically checks for the | |
390 | +source code in the directory that `configure' is in and in `..'. | |
391 | + | |
392 | + If you have to use a `make' that does not supports the `VPATH' | |
393 | +variable, you have to compile the package for one architecture at a time | |
394 | +in the source code directory. After you have installed the package for | |
395 | +one architecture, use `make distclean' before reconfiguring for another | |
396 | +architecture. | |
397 | + | |
398 | +Installation Names | |
399 | +================== | |
400 | + | |
401 | + By default, `make install' will install the package's files in | |
402 | +`/usr/local/bin', `/usr/local/man', etc. You can specify an | |
403 | +installation prefix other than `/usr/local' by giving `configure' the | |
404 | +option `--prefix=PATH'. | |
405 | + | |
406 | + You can specify separate installation prefixes for | |
407 | +architecture-specific files and architecture-independent files. If you | |
408 | +give `configure' the option `--exec-prefix=PATH', the package will use | |
409 | +PATH as the prefix for installing programs and libraries. | |
410 | +Documentation and other data files will still use the regular prefix. | |
411 | + | |
412 | + In addition, if you use an unusual directory layout you can give | |
413 | +options like `--bindir=PATH' to specify different values for particular | |
414 | +kinds of files. Run `configure --help' for a list of the directories | |
415 | +you can set and what kinds of files go in them. | |
416 | + | |
417 | + If the package supports it, you can cause programs to be installed | |
418 | +with an extra prefix or suffix on their names by giving `configure' the | |
419 | +option `--program-prefix=PREFIX' or `--program-suffix=SUFFIX'. | |
420 | + | |
421 | +Optional Features | |
422 | +================= | |
423 | + | |
424 | + Some packages pay attention to `--enable-FEATURE' options to | |
425 | +`configure', where FEATURE indicates an optional part of the package. | |
426 | +They may also pay attention to `--with-PACKAGE' options, where PACKAGE | |
427 | +is something like `gnu-as' or `x' (for the X Window System). The | |
428 | +`README' should mention any `--enable-' and `--with-' options that the | |
429 | +package recognizes. | |
430 | + | |
431 | + For packages that use the X Window System, `configure' can usually | |
432 | +find the X include and library files automatically, but if it doesn't, | |
433 | +you can use the `configure' options `--x-includes=DIR' and | |
434 | +`--x-libraries=DIR' to specify their locations. | |
435 | + | |
436 | +Specifying the System Type | |
437 | +========================== | |
438 | + | |
439 | + There may be some features `configure' can not figure out | |
440 | +automatically, but needs to determine by the type of host the package | |
441 | +will run on. Usually `configure' can figure that out, but if it prints | |
442 | +a message saying it can not guess the host type, give it the | |
443 | +`--host=TYPE' option. TYPE can either be a short name for the system | |
444 | +type, such as `sun4', or a canonical name with three fields: | |
445 | + CPU-COMPANY-SYSTEM | |
446 | + | |
447 | +See the file `config.sub' for the possible values of each field. If | |
448 | +`config.sub' isn't included in this package, then this package doesn't | |
449 | +need to know the host type. | |
450 | + | |
451 | + If you are building compiler tools for cross-compiling, you can also | |
452 | +use the `--target=TYPE' option to select the type of system they will | |
453 | +produce code for and the `--build=TYPE' option to select the type of | |
454 | +system on which you are compiling the package. | |
455 | + | |
456 | +Sharing Defaults | |
457 | +================ | |
458 | + | |
459 | + If you want to set default values for `configure' scripts to share, | |
460 | +you can create a site shell script called `config.site' that gives | |
461 | +default values for variables like `CC', `cache_file', and `prefix'. | |
462 | +`configure' looks for `PREFIX/share/config.site' if it exists, then | |
463 | +`PREFIX/etc/config.site' if it exists. Or, you can set the | |
464 | +`CONFIG_SITE' environment variable to the location of the site script. | |
465 | +A warning: not all `configure' scripts look for a site script. | |
466 | + | |
467 | +Operation Controls | |
468 | +================== | |
469 | + | |
470 | + `configure' recognizes the following options to control how it | |
471 | +operates. | |
472 | + | |
473 | +`--cache-file=FILE' | |
474 | + Use and save the results of the tests in FILE instead of | |
475 | + `./config.cache'. Set FILE to `/dev/null' to disable caching, for | |
476 | + debugging `configure'. | |
477 | + | |
478 | +`--help' | |
479 | + Print a summary of the options to `configure', and exit. | |
480 | + | |
481 | +`--quiet' | |
482 | +`--silent' | |
483 | +`-q' | |
484 | + Do not print messages saying which checks are being made. To | |
485 | + suppress all normal output, redirect it to `/dev/null' (any error | |
486 | + messages will still be shown). | |
487 | + | |
488 | +`--srcdir=DIR' | |
489 | + Look for the package's source code in directory DIR. Usually | |
490 | + `configure' can determine that directory automatically. | |
491 | + | |
492 | +`--version' | |
493 | + Print the version of Autoconf used to generate the `configure' | |
494 | + script, and exit. | |
495 | + | |
496 | +`configure' also accepts some other, not widely useful, options. | |
15ee0650 | 497 | diff -Nru bzip2-1.0.2/LICENSE bzip2-1.0.2.new/LICENSE |
498 | --- bzip2-1.0.2/LICENSE Wed Jan 2 05:12:07 2002 | |
499 | +++ bzip2-1.0.2.new/LICENSE Thu Jan 1 01:00:00 1970 | |
d967e3ec | 500 | @@ -1,39 +0,0 @@ |
501 | - | |
502 | -This program, "bzip2" and associated library "libbzip2", are | |
15ee0650 | 503 | -copyright (C) 1996-2002 Julian R Seward. All rights reserved. |
d967e3ec | 504 | - |
505 | -Redistribution and use in source and binary forms, with or without | |
506 | -modification, are permitted provided that the following conditions | |
507 | -are met: | |
508 | - | |
509 | -1. Redistributions of source code must retain the above copyright | |
510 | - notice, this list of conditions and the following disclaimer. | |
511 | - | |
512 | -2. The origin of this software must not be misrepresented; you must | |
513 | - not claim that you wrote the original software. If you use this | |
514 | - software in a product, an acknowledgment in the product | |
515 | - documentation would be appreciated but is not required. | |
516 | - | |
517 | -3. Altered source versions must be plainly marked as such, and must | |
518 | - not be misrepresented as being the original software. | |
519 | - | |
520 | -4. The name of the author may not be used to endorse or promote | |
521 | - products derived from this software without specific prior written | |
522 | - permission. | |
523 | - | |
524 | -THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS | |
525 | -OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED | |
526 | -WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE | |
527 | -ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY | |
528 | -DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL | |
529 | -DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE | |
530 | -GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS | |
531 | -INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, | |
532 | -WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING | |
533 | -NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS | |
534 | -SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | |
535 | - | |
536 | -Julian Seward, Cambridge, UK. | |
537 | -jseward@acm.org | |
15ee0650 | 538 | -bzip2/libbzip2 version 1.0.2 of 30 December 2001 |
d967e3ec | 539 | - |
15ee0650 | 540 | diff -Nru bzip2-1.0.2/Makefile-libbz2_so bzip2-1.0.2.new/Makefile-libbz2_so |
541 | --- bzip2-1.0.2/Makefile-libbz2_so Sun Dec 30 03:15:59 2001 | |
542 | +++ bzip2-1.0.2.new/Makefile-libbz2_so Thu Jan 1 01:00:00 1970 | |
543 | @@ -1,44 +0,0 @@ | |
d967e3ec | 544 | - |
545 | -# This Makefile builds a shared version of the library, | |
15ee0650 | 546 | -# libbz2.so.1.0.2, with soname libbz2.so.1.0, |
547 | -# at least on x86-Linux (RedHat 7.2), | |
548 | -# with gcc-2.96 20000731 (Red Hat Linux 7.1 2.96-98). | |
549 | -# Please see the README file for some | |
d967e3ec | 550 | -# important info about building the library like this. |
551 | - | |
552 | -SHELL=/bin/sh | |
553 | -CC=gcc | |
554 | -BIGFILES=-D_FILE_OFFSET_BITS=64 | |
555 | -CFLAGS=-fpic -fPIC -Wall -Winline -O2 -fomit-frame-pointer -fno-strength-reduce $(BIGFILES) | |
556 | - | |
557 | -OBJS= blocksort.o \ | |
558 | - huffman.o \ | |
559 | - crctable.o \ | |
560 | - randtable.o \ | |
561 | - compress.o \ | |
562 | - decompress.o \ | |
563 | - bzlib.o | |
564 | - | |
565 | -all: $(OBJS) | |
15ee0650 | 566 | - $(CC) -shared -Wl,-soname -Wl,libbz2.so.1.0 -o libbz2.so.1.0.2 $(OBJS) |
567 | - $(CC) $(CFLAGS) -o bzip2-shared bzip2.c libbz2.so.1.0.2 | |
d967e3ec | 568 | - rm -f libbz2.so.1.0 |
15ee0650 | 569 | - ln -s libbz2.so.1.0.2 libbz2.so.1.0 |
d967e3ec | 570 | - |
571 | -clean: | |
15ee0650 | 572 | - rm -f $(OBJS) bzip2.o libbz2.so.1.0.2 libbz2.so.1.0 bzip2-shared |
d967e3ec | 573 | - |
574 | -blocksort.o: blocksort.c | |
575 | - $(CC) $(CFLAGS) -c blocksort.c | |
576 | -huffman.o: huffman.c | |
577 | - $(CC) $(CFLAGS) -c huffman.c | |
578 | -crctable.o: crctable.c | |
579 | - $(CC) $(CFLAGS) -c crctable.c | |
580 | -randtable.o: randtable.c | |
581 | - $(CC) $(CFLAGS) -c randtable.c | |
582 | -compress.o: compress.c | |
583 | - $(CC) $(CFLAGS) -c compress.c | |
584 | -decompress.o: decompress.c | |
585 | - $(CC) $(CFLAGS) -c decompress.c | |
586 | -bzlib.o: bzlib.c | |
587 | - $(CC) $(CFLAGS) -c bzlib.c | |
15ee0650 | 588 | diff -Nru bzip2-1.0.2/Makefile.am bzip2-1.0.2.new/Makefile.am |
589 | --- bzip2-1.0.2/Makefile.am Thu Jan 1 01:00:00 1970 | |
590 | +++ bzip2-1.0.2.new/Makefile.am Fri Feb 1 04:19:09 2002 | |
d967e3ec | 591 | @@ -0,0 +1,31 @@ |
592 | +SUBDIRS = doc | |
593 | + | |
594 | +bin_PROGRAMS = bzip2 bzip2recover | |
595 | +bzip2_SOURCES = bzip2.c | |
596 | + | |
597 | +bzip2_LDADD = libbz2.la | |
598 | +bzip2recover_SOURCES = bzip2recover.c | |
599 | +lib_LTLIBRARIES = libbz2.la | |
600 | +libbz2_la_SOURCES = \ | |
601 | + blocksort.c \ | |
602 | + huffman.c \ | |
603 | + crctable.c \ | |
604 | + randtable.c \ | |
605 | + compress.c \ | |
606 | + decompress.c \ | |
607 | + bzlib.c \ | |
608 | + bzlib.h \ | |
609 | + bzlib_private.h | |
610 | + | |
611 | +libbz2_la_LDFLAGS = -version-info 1:0:0 | |
612 | +include_HEADERS = bzlib.h bzlib_private.h | |
613 | + | |
ff248cb7 | 614 | +bin_SCRIPTS = bzless bzgrep |
d967e3ec | 615 | + |
616 | +EXTRA_DIST = README README.COMPILATION.PROBLEMS \ | |
617 | + Y2K_INFO libbz2.def libbz2.dsp \ | |
618 | + sample1.bz2 sample1.ref sample2.bz2 sample2.ref sample3.bz2 sample3.ref | |
619 | + | |
620 | +install-exec-hook: | |
621 | + $(LN_S) -f bzip2 $(DESTDIR)$(bindir)/bunzip2 | |
622 | + $(LN_S) -f bzip2 $(DESTDIR)$(bindir)/bzcat | |
15ee0650 | 623 | diff -Nru bzip2-1.0.2/NEWS bzip2-1.0.2.new/NEWS |
624 | --- bzip2-1.0.2/NEWS Thu Jan 1 01:00:00 1970 | |
625 | +++ bzip2-1.0.2.new/NEWS Sat Jan 26 01:02:57 2002 | |
626 | @@ -0,0 +1,253 @@ | |
627 | + | |
628 | + | |
629 | +0.9.0 | |
630 | +~~~~~ | |
631 | +First version. | |
632 | + | |
633 | + | |
634 | +0.9.0a | |
635 | +~~~~~~ | |
636 | +Removed 'ranlib' from Makefile, since most modern Unix-es | |
637 | +don't need it, or even know about it. | |
638 | + | |
639 | + | |
640 | +0.9.0b | |
641 | +~~~~~~ | |
642 | +Fixed a problem with error reporting in bzip2.c. This does not effect | |
643 | +the library in any way. Problem is: versions 0.9.0 and 0.9.0a (of the | |
644 | +program proper) compress and decompress correctly, but give misleading | |
645 | +error messages (internal panics) when an I/O error occurs, instead of | |
646 | +reporting the problem correctly. This shouldn't give any data loss | |
647 | +(as far as I can see), but is confusing. | |
648 | + | |
649 | +Made the inline declarations disappear for non-GCC compilers. | |
650 | + | |
651 | + | |
652 | +0.9.0c | |
653 | +~~~~~~ | |
654 | +Fixed some problems in the library pertaining to some boundary cases. | |
655 | +This makes the library behave more correctly in those situations. The | |
656 | +fixes apply only to features (calls and parameters) not used by | |
657 | +bzip2.c, so the non-fixedness of them in previous versions has no | |
658 | +effect on reliability of bzip2.c. | |
659 | + | |
660 | +In bzlib.c: | |
661 | + * made zero-length BZ_FLUSH work correctly in bzCompress(). | |
662 | + * fixed bzWrite/bzRead to ignore zero-length requests. | |
663 | + * fixed bzread to correctly handle read requests after EOF. | |
664 | + * wrong parameter order in call to bzDecompressInit in | |
665 | + bzBuffToBuffDecompress. Fixed. | |
666 | + | |
667 | +In compress.c: | |
668 | + * changed setting of nGroups in sendMTFValues() so as to | |
669 | + do a bit better on small files. This _does_ effect | |
670 | + bzip2.c. | |
671 | + | |
672 | + | |
673 | +0.9.5a | |
674 | +~~~~~~ | |
675 | +Major change: add a fallback sorting algorithm (blocksort.c) | |
676 | +to give reasonable behaviour even for very repetitive inputs. | |
677 | +Nuked --repetitive-best and --repetitive-fast since they are | |
678 | +no longer useful. | |
679 | + | |
680 | +Minor changes: mostly a whole bunch of small changes/ | |
681 | +bugfixes in the driver (bzip2.c). Changes pertaining to the | |
682 | +user interface are: | |
683 | + | |
684 | + allow decompression of symlink'd files to stdout | |
685 | + decompress/test files even without .bz2 extension | |
686 | + give more accurate error messages for I/O errors | |
687 | + when compressing/decompressing to stdout, don't catch control-C | |
688 | + read flags from BZIP2 and BZIP environment variables | |
689 | + decline to break hard links to a file unless forced with -f | |
690 | + allow -c flag even with no filenames | |
691 | + preserve file ownerships as far as possible | |
692 | + make -s -1 give the expected block size (100k) | |
693 | + add a flag -q --quiet to suppress nonessential warnings | |
694 | + stop decoding flags after --, so files beginning in - can be handled | |
695 | + resolved inconsistent naming: bzcat or bz2cat ? | |
696 | + bzip2 --help now returns 0 | |
697 | + | |
698 | +Programming-level changes are: | |
699 | + | |
700 | + fixed syntax error in GET_LL4 for Borland C++ 5.02 | |
701 | + let bzBuffToBuffDecompress return BZ_DATA_ERROR{_MAGIC} | |
702 | + fix overshoot of mode-string end in bzopen_or_bzdopen | |
703 | + wrapped bzlib.h in #ifdef __cplusplus ... extern "C" { ... } | |
704 | + close file handles under all error conditions | |
705 | + added minor mods so it compiles with DJGPP out of the box | |
706 | + fixed Makefile so it doesn't give problems with BSD make | |
707 | + fix uninitialised memory reads in dlltest.c | |
708 | + | |
709 | +0.9.5b | |
710 | +~~~~~~ | |
711 | +Open stdin/stdout in binary mode for DJGPP. | |
712 | + | |
713 | +0.9.5c | |
714 | +~~~~~~ | |
715 | +Changed BZ_N_OVERSHOOT to be ... + 2 instead of ... + 1. The + 1 | |
716 | +version could cause the sorted order to be wrong in some extremely | |
717 | +obscure cases. Also changed setting of quadrant in blocksort.c. | |
718 | + | |
719 | +0.9.5d | |
720 | +~~~~~~ | |
721 | +The only functional change is to make bzlibVersion() in the library | |
722 | +return the correct string. This has no effect whatsoever on the | |
723 | +functioning of the bzip2 program or library. Added a couple of casts | |
724 | +so the library compiles without warnings at level 3 in MS Visual | |
725 | +Studio 6.0. Included a Y2K statement in the file Y2K_INFO. All other | |
726 | +changes are minor documentation changes. | |
727 | + | |
728 | +1.0 | |
729 | +~~~ | |
730 | +Several minor bugfixes and enhancements: | |
731 | + | |
732 | +* Large file support. The library uses 64-bit counters to | |
733 | + count the volume of data passing through it. bzip2.c | |
734 | + is now compiled with -D_FILE_OFFSET_BITS=64 to get large | |
735 | + file support from the C library. -v correctly prints out | |
736 | + file sizes greater than 4 gigabytes. All these changes have | |
737 | + been made without assuming a 64-bit platform or a C compiler | |
738 | + which supports 64-bit ints, so, except for the C library | |
739 | + aspect, they are fully portable. | |
740 | + | |
741 | +* Decompression robustness. The library/program should be | |
742 | + robust to any corruption of compressed data, detecting and | |
743 | + handling _all_ corruption, instead of merely relying on | |
744 | + the CRCs. What this means is that the program should | |
745 | + never crash, given corrupted data, and the library should | |
746 | + always return BZ_DATA_ERROR. | |
747 | + | |
748 | +* Fixed an obscure race-condition bug only ever observed on | |
749 | + Solaris, in which, if you were very unlucky and issued | |
750 | + control-C at exactly the wrong time, both input and output | |
751 | + files would be deleted. | |
752 | + | |
753 | +* Don't run out of file handles on test/decompression when | |
754 | + large numbers of files have invalid magic numbers. | |
755 | + | |
756 | +* Avoid library namespace pollution. Prefix all exported | |
757 | + symbols with BZ2_. | |
758 | + | |
759 | +* Minor sorting enhancements from my DCC2000 paper. | |
760 | + | |
761 | +* Advance the version number to 1.0, so as to counteract the | |
762 | + (false-in-this-case) impression some people have that programs | |
763 | + with version numbers less than 1.0 are in some way, experimental, | |
764 | + pre-release versions. | |
765 | + | |
766 | +* Create an initial Makefile-libbz2_so to build a shared library. | |
767 | + Yes, I know I should really use libtool et al ... | |
768 | + | |
769 | +* Make the program exit with 2 instead of 0 when decompression | |
770 | + fails due to a bad magic number (ie, an invalid bzip2 header). | |
771 | + Also exit with 1 (as the manual claims :-) whenever a diagnostic | |
772 | + message would have been printed AND the corresponding operation | |
773 | + is aborted, for example | |
774 | + bzip2: Output file xx already exists. | |
775 | + When a diagnostic message is printed but the operation is not | |
776 | + aborted, for example | |
777 | + bzip2: Can't guess original name for wurble -- using wurble.out | |
778 | + then the exit value 0 is returned, unless some other problem is | |
779 | + also detected. | |
780 | + | |
781 | + I think it corresponds more closely to what the manual claims now. | |
d967e3ec | 782 | + |
783 | + | |
784 | +1.0.1 | |
785 | +~~~~~ | |
786 | +* Modified dlltest.c so it uses the new BZ2_ naming scheme. | |
787 | +* Modified makefile-msc to fix minor build probs on Win2k. | |
788 | +* Updated README.COMPILATION.PROBLEMS. | |
789 | + | |
790 | +There are no functionality changes or bug fixes relative to version | |
791 | +1.0.0. This is just a documentation update + a fix for minor Win32 | |
792 | +build problems. For almost everyone, upgrading from 1.0.0 to 1.0.1 is | |
793 | +utterly pointless. Don't bother. | |
15ee0650 | 794 | + |
795 | + | |
796 | +1.0.2 | |
797 | +~~~~~ | |
798 | +A bug fix release, addressing various minor issues which have appeared | |
799 | +in the 18 or so months since 1.0.1 was released. Most of the fixes | |
800 | +are to do with file-handling or documentation bugs. To the best of my | |
801 | +knowledge, there have been no data-loss-causing bugs reported in the | |
802 | +compression/decompression engine of 1.0.0 or 1.0.1. | |
803 | + | |
804 | +Note that this release does not improve the rather crude build system | |
805 | +for Unix platforms. The general plan here is to autoconfiscate/ | |
806 | +libtoolise 1.0.2 soon after release, and release the result as 1.1.0 | |
807 | +or perhaps 1.2.0. That, however, is still just a plan at this point. | |
808 | + | |
809 | +Here are the changes in 1.0.2. Bug-reporters and/or patch-senders in | |
810 | +parentheses. | |
811 | + | |
812 | +* Fix an infinite segfault loop in 1.0.1 when a directory is | |
813 | + encountered in -f (force) mode. | |
814 | + (Trond Eivind Glomsrod, Nicholas Nethercote, Volker Schmidt) | |
815 | + | |
816 | +* Avoid double fclose() of output file on certain I/O error paths. | |
817 | + (Solar Designer) | |
818 | + | |
819 | +* Don't fail with internal error 1007 when fed a long stream (> 48MB) | |
820 | + of byte 251. Also print useful message suggesting that 1007s may be | |
821 | + caused by bad memory. | |
822 | + (noticed by Juan Pedro Vallejo, fixed by me) | |
823 | + | |
824 | +* Fix uninitialised variable silly bug in demo prog dlltest.c. | |
825 | + (Jorj Bauer) | |
826 | + | |
827 | +* Remove 512-MB limitation on recovered file size for bzip2recover | |
828 | + on selected platforms which support 64-bit ints. At the moment | |
829 | + all GCC supported platforms, and Win32. | |
830 | + (me, Alson van der Meulen) | |
831 | + | |
832 | +* Hard-code header byte values, to give correct operation on platforms | |
833 | + using EBCDIC as their native character set (IBM's OS/390). | |
834 | + (Leland Lucius) | |
835 | + | |
836 | +* Copy file access times correctly. | |
837 | + (Marty Leisner) | |
838 | + | |
839 | +* Add distclean and check targets to Makefile. | |
840 | + (Michael Carmack) | |
841 | + | |
842 | +* Parameterise use of ar and ranlib in Makefile. Also add $(LDFLAGS). | |
843 | + (Rich Ireland, Bo Thorsen) | |
844 | + | |
845 | +* Pass -p (create parent dirs as needed) to mkdir during make install. | |
846 | + (Jeremy Fusco) | |
847 | + | |
848 | +* Dereference symlinks when copying file permissions in -f mode. | |
849 | + (Volker Schmidt) | |
850 | + | |
851 | +* Majorly simplify implementation of uInt64_qrm10. | |
852 | + (Bo Lindbergh) | |
853 | + | |
854 | +* Check the input file still exists before deleting the output one, | |
855 | + when aborting in cleanUpAndFail(). | |
856 | + (Joerg Prante, Robert Linden, Matthias Krings) | |
857 | + | |
858 | +Also a bunch of patches courtesy of Philippe Troin, the Debian maintainer | |
859 | +of bzip2: | |
860 | + | |
861 | +* Wrapper scripts (with manpages): bzdiff, bzgrep, bzmore. | |
862 | + | |
863 | +* Spelling changes and minor enhancements in bzip2.1. | |
864 | + | |
865 | +* Avoid race condition between creating the output file and setting its | |
866 | + interim permissions safely, by using fopen_output_safely(). | |
867 | + No changes to bzip2recover since there is no issue with file | |
868 | + permissions there. | |
869 | + | |
870 | +* do not print senseless report with -v when compressing an empty | |
871 | + file. | |
872 | + | |
873 | +* bzcat -f works on non-bzip2 files. | |
874 | + | |
875 | +* do not try to escape shell meta-characters on unix (the shell takes | |
876 | + care of these). | |
877 | + | |
878 | +* added --fast and --best aliases for -1 -9 for gzip compatibility. | |
879 | + | |
880 | diff -Nru bzip2-1.0.2/bzdiff.1 bzip2-1.0.2.new/bzdiff.1 | |
881 | --- bzip2-1.0.2/bzdiff.1 Sun Dec 30 03:12:35 2001 | |
882 | +++ bzip2-1.0.2.new/bzdiff.1 Thu Jan 1 01:00:00 1970 | |
883 | @@ -1,47 +0,0 @@ | |
884 | -\"Shamelessly copied from zmore.1 by Philippe Troin <phil@fifi.org> | |
885 | -\"for Debian GNU/Linux | |
886 | -.TH BZDIFF 1 | |
887 | -.SH NAME | |
888 | -bzcmp, bzdiff \- compare bzip2 compressed files | |
889 | -.SH SYNOPSIS | |
890 | -.B bzcmp | |
891 | -[ cmp_options ] file1 | |
892 | -[ file2 ] | |
893 | -.br | |
894 | -.B bzdiff | |
895 | -[ diff_options ] file1 | |
896 | -[ file2 ] | |
897 | -.SH DESCRIPTION | |
898 | -.I Bzcmp | |
899 | -and | |
900 | -.I bzdiff | |
901 | -are used to invoke the | |
902 | -.I cmp | |
903 | -or the | |
904 | -.I diff | |
905 | -program on bzip2 compressed files. All options specified are passed | |
906 | -directly to | |
907 | -.I cmp | |
908 | -or | |
909 | -.IR diff "." | |
910 | -If only 1 file is specified, then the files compared are | |
911 | -.I file1 | |
912 | -and an uncompressed | |
913 | -.IR file1 ".bz2." | |
914 | -If two files are specified, then they are uncompressed if necessary and fed to | |
915 | -.I cmp | |
916 | -or | |
917 | -.IR diff "." | |
918 | -The exit status from | |
919 | -.I cmp | |
920 | -or | |
921 | -.I diff | |
922 | -is preserved. | |
923 | -.SH "SEE ALSO" | |
924 | -cmp(1), diff(1), bzmore(1), bzless(1), bzgrep(1), bzip2(1) | |
925 | -.SH BUGS | |
926 | -Messages from the | |
927 | -.I cmp | |
928 | -or | |
929 | -.I diff | |
930 | -programs refer to temporary filenames instead of those specified. | |
931 | diff -Nru bzip2-1.0.2/bzgrep.1 bzip2-1.0.2.new/bzgrep.1 | |
932 | --- bzip2-1.0.2/bzgrep.1 Sun Dec 30 03:12:35 2001 | |
933 | +++ bzip2-1.0.2.new/bzgrep.1 Thu Jan 1 01:00:00 1970 | |
934 | @@ -1,56 +0,0 @@ | |
935 | -\"Shamelessly copied from zmore.1 by Philippe Troin <phil@fifi.org> | |
936 | -\"for Debian GNU/Linux | |
937 | -.TH BZGREP 1 | |
938 | -.SH NAME | |
939 | -bzgrep, bzfgrep, bzegrep \- search possibly bzip2 compressed files for a regular expression | |
940 | -.SH SYNOPSIS | |
941 | -.B bzgrep | |
942 | -[ grep_options ] | |
943 | -.BI [\ -e\ ] " pattern" | |
944 | -.IR filename ".\|.\|." | |
945 | -.br | |
946 | -.B bzegrep | |
947 | -[ egrep_options ] | |
948 | -.BI [\ -e\ ] " pattern" | |
949 | -.IR filename ".\|.\|." | |
950 | -.br | |
951 | -.B bzfgrep | |
952 | -[ fgrep_options ] | |
953 | -.BI [\ -e\ ] " pattern" | |
954 | -.IR filename ".\|.\|." | |
955 | -.SH DESCRIPTION | |
956 | -.IR Bzgrep | |
957 | -is used to invoke the | |
958 | -.I grep | |
959 | -on bzip2-compressed files. All options specified are passed directly to | |
960 | -.I grep. | |
961 | -If no file is specified, then the standard input is decompressed | |
962 | -if necessary and fed to grep. | |
963 | -Otherwise the given files are uncompressed if necessary and fed to | |
964 | -.I grep. | |
965 | -.PP | |
966 | -If | |
967 | -.I bzgrep | |
968 | -is invoked as | |
969 | -.I bzegrep | |
970 | -or | |
971 | -.I bzfgrep | |
972 | -then | |
973 | -.I egrep | |
974 | -or | |
975 | -.I fgrep | |
976 | -is used instead of | |
977 | -.I grep. | |
978 | -If the GREP environment variable is set, | |
979 | -.I bzgrep | |
980 | -uses it as the | |
981 | -.I grep | |
982 | -program to be invoked. For example: | |
983 | - | |
984 | - for sh: GREP=fgrep bzgrep string files | |
985 | - for csh: (setenv GREP fgrep; bzgrep string files) | |
986 | -.SH AUTHOR | |
987 | -Charles Levert (charles@comm.polymtl.ca). Adapted to bzip2 by Philippe | |
988 | -Troin <phil@fifi.org> for Debian GNU/Linux. | |
989 | -.SH "SEE ALSO" | |
990 | -grep(1), egrep(1), fgrep(1), bzdiff(1), bzmore(1), bzless(1), bzip2(1) | |
991 | diff -Nru bzip2-1.0.2/bzip2.1 bzip2-1.0.2.new/bzip2.1 | |
992 | --- bzip2-1.0.2/bzip2.1 Thu Jan 3 00:14:36 2002 | |
993 | +++ bzip2-1.0.2.new/bzip2.1 Thu Jan 1 01:00:00 1970 | |
994 | @@ -1,453 +0,0 @@ | |
d967e3ec | 995 | -.PU |
996 | -.TH bzip2 1 | |
997 | -.SH NAME | |
15ee0650 | 998 | -bzip2, bunzip2 \- a block-sorting file compressor, v1.0.2 |
d967e3ec | 999 | -.br |
1000 | -bzcat \- decompresses files to stdout | |
1001 | -.br | |
1002 | -bzip2recover \- recovers data from damaged bzip2 files | |
1003 | - | |
1004 | -.SH SYNOPSIS | |
1005 | -.ll +8 | |
1006 | -.B bzip2 | |
1007 | -.RB [ " \-cdfkqstvzVL123456789 " ] | |
1008 | -[ | |
1009 | -.I "filenames \&..." | |
1010 | -] | |
1011 | -.ll -8 | |
1012 | -.br | |
1013 | -.B bunzip2 | |
1014 | -.RB [ " \-fkvsVL " ] | |
1015 | -[ | |
1016 | -.I "filenames \&..." | |
1017 | -] | |
1018 | -.br | |
1019 | -.B bzcat | |
1020 | -.RB [ " \-s " ] | |
1021 | -[ | |
1022 | -.I "filenames \&..." | |
1023 | -] | |
1024 | -.br | |
1025 | -.B bzip2recover | |
1026 | -.I "filename" | |
1027 | - | |
1028 | -.SH DESCRIPTION | |
1029 | -.I bzip2 | |
1030 | -compresses files using the Burrows-Wheeler block sorting | |
1031 | -text compression algorithm, and Huffman coding. Compression is | |
1032 | -generally considerably better than that achieved by more conventional | |
1033 | -LZ77/LZ78-based compressors, and approaches the performance of the PPM | |
1034 | -family of statistical compressors. | |
1035 | - | |
1036 | -The command-line options are deliberately very similar to | |
1037 | -those of | |
1038 | -.I GNU gzip, | |
1039 | -but they are not identical. | |
1040 | - | |
1041 | -.I bzip2 | |
1042 | -expects a list of file names to accompany the | |
1043 | -command-line flags. Each file is replaced by a compressed version of | |
1044 | -itself, with the name "original_name.bz2". | |
1045 | -Each compressed file | |
1046 | -has the same modification date, permissions, and, when possible, | |
1047 | -ownership as the corresponding original, so that these properties can | |
1048 | -be correctly restored at decompression time. File name handling is | |
1049 | -naive in the sense that there is no mechanism for preserving original | |
1050 | -file names, permissions, ownerships or dates in filesystems which lack | |
1051 | -these concepts, or have serious file name length restrictions, such as | |
1052 | -MS-DOS. | |
1053 | - | |
1054 | -.I bzip2 | |
1055 | -and | |
1056 | -.I bunzip2 | |
1057 | -will by default not overwrite existing | |
1058 | -files. If you want this to happen, specify the \-f flag. | |
1059 | - | |
1060 | -If no file names are specified, | |
1061 | -.I bzip2 | |
1062 | -compresses from standard | |
1063 | -input to standard output. In this case, | |
1064 | -.I bzip2 | |
1065 | -will decline to | |
1066 | -write compressed output to a terminal, as this would be entirely | |
1067 | -incomprehensible and therefore pointless. | |
1068 | - | |
1069 | -.I bunzip2 | |
1070 | -(or | |
1071 | -.I bzip2 \-d) | |
1072 | -decompresses all | |
1073 | -specified files. Files which were not created by | |
1074 | -.I bzip2 | |
1075 | -will be detected and ignored, and a warning issued. | |
1076 | -.I bzip2 | |
1077 | -attempts to guess the filename for the decompressed file | |
1078 | -from that of the compressed file as follows: | |
1079 | - | |
1080 | - filename.bz2 becomes filename | |
1081 | - filename.bz becomes filename | |
1082 | - filename.tbz2 becomes filename.tar | |
1083 | - filename.tbz becomes filename.tar | |
1084 | - anyothername becomes anyothername.out | |
1085 | - | |
1086 | -If the file does not end in one of the recognised endings, | |
1087 | -.I .bz2, | |
1088 | -.I .bz, | |
1089 | -.I .tbz2 | |
1090 | -or | |
1091 | -.I .tbz, | |
1092 | -.I bzip2 | |
1093 | -complains that it cannot | |
1094 | -guess the name of the original file, and uses the original name | |
1095 | -with | |
1096 | -.I .out | |
1097 | -appended. | |
1098 | - | |
1099 | -As with compression, supplying no | |
1100 | -filenames causes decompression from | |
1101 | -standard input to standard output. | |
1102 | - | |
1103 | -.I bunzip2 | |
1104 | -will correctly decompress a file which is the | |
1105 | -concatenation of two or more compressed files. The result is the | |
1106 | -concatenation of the corresponding uncompressed files. Integrity | |
1107 | -testing (\-t) | |
1108 | -of concatenated | |
1109 | -compressed files is also supported. | |
1110 | - | |
1111 | -You can also compress or decompress files to the standard output by | |
1112 | -giving the \-c flag. Multiple files may be compressed and | |
1113 | -decompressed like this. The resulting outputs are fed sequentially to | |
1114 | -stdout. Compression of multiple files | |
1115 | -in this manner generates a stream | |
1116 | -containing multiple compressed file representations. Such a stream | |
1117 | -can be decompressed correctly only by | |
1118 | -.I bzip2 | |
1119 | -version 0.9.0 or | |
1120 | -later. Earlier versions of | |
1121 | -.I bzip2 | |
1122 | -will stop after decompressing | |
1123 | -the first file in the stream. | |
1124 | - | |
1125 | -.I bzcat | |
1126 | -(or | |
1127 | -.I bzip2 -dc) | |
1128 | -decompresses all specified files to | |
1129 | -the standard output. | |
1130 | - | |
1131 | -.I bzip2 | |
1132 | -will read arguments from the environment variables | |
1133 | -.I BZIP2 | |
1134 | -and | |
1135 | -.I BZIP, | |
1136 | -in that order, and will process them | |
1137 | -before any arguments read from the command line. This gives a | |
1138 | -convenient way to supply default arguments. | |
1139 | - | |
1140 | -Compression is always performed, even if the compressed | |
1141 | -file is slightly | |
1142 | -larger than the original. Files of less than about one hundred bytes | |
1143 | -tend to get larger, since the compression mechanism has a constant | |
1144 | -overhead in the region of 50 bytes. Random data (including the output | |
1145 | -of most file compressors) is coded at about 8.05 bits per byte, giving | |
1146 | -an expansion of around 0.5%. | |
1147 | - | |
1148 | -As a self-check for your protection, | |
1149 | -.I | |
1150 | -bzip2 | |
1151 | -uses 32-bit CRCs to | |
1152 | -make sure that the decompressed version of a file is identical to the | |
1153 | -original. This guards against corruption of the compressed data, and | |
1154 | -against undetected bugs in | |
1155 | -.I bzip2 | |
1156 | -(hopefully very unlikely). The | |
1157 | -chances of data corruption going undetected is microscopic, about one | |
1158 | -chance in four billion for each file processed. Be aware, though, that | |
1159 | -the check occurs upon decompression, so it can only tell you that | |
1160 | -something is wrong. It can't help you | |
1161 | -recover the original uncompressed | |
1162 | -data. You can use | |
1163 | -.I bzip2recover | |
1164 | -to try to recover data from | |
1165 | -damaged files. | |
1166 | - | |
1167 | -Return values: 0 for a normal exit, 1 for environmental problems (file | |
1168 | -not found, invalid flags, I/O errors, &c), 2 to indicate a corrupt | |
1169 | -compressed file, 3 for an internal consistency error (eg, bug) which | |
1170 | -caused | |
1171 | -.I bzip2 | |
1172 | -to panic. | |
1173 | - | |
1174 | -.SH OPTIONS | |
1175 | -.TP | |
1176 | -.B \-c --stdout | |
1177 | -Compress or decompress to standard output. | |
1178 | -.TP | |
1179 | -.B \-d --decompress | |
1180 | -Force decompression. | |
1181 | -.I bzip2, | |
1182 | -.I bunzip2 | |
1183 | -and | |
1184 | -.I bzcat | |
1185 | -are | |
1186 | -really the same program, and the decision about what actions to take is | |
1187 | -done on the basis of which name is used. This flag overrides that | |
1188 | -mechanism, and forces | |
1189 | -.I bzip2 | |
1190 | -to decompress. | |
1191 | -.TP | |
1192 | -.B \-z --compress | |
1193 | -The complement to \-d: forces compression, regardless of the | |
15ee0650 | 1194 | -invocation name. |
d967e3ec | 1195 | -.TP |
1196 | -.B \-t --test | |
1197 | -Check integrity of the specified file(s), but don't decompress them. | |
1198 | -This really performs a trial decompression and throws away the result. | |
1199 | -.TP | |
1200 | -.B \-f --force | |
1201 | -Force overwrite of output files. Normally, | |
1202 | -.I bzip2 | |
1203 | -will not overwrite | |
1204 | -existing output files. Also forces | |
1205 | -.I bzip2 | |
1206 | -to break hard links | |
1207 | -to files, which it otherwise wouldn't do. | |
15ee0650 | 1208 | - |
1209 | -bzip2 normally declines to decompress files which don't have the | |
1210 | -correct magic header bytes. If forced (-f), however, it will pass | |
1211 | -such files through unmodified. This is how GNU gzip behaves. | |
d967e3ec | 1212 | -.TP |
1213 | -.B \-k --keep | |
1214 | -Keep (don't delete) input files during compression | |
1215 | -or decompression. | |
1216 | -.TP | |
1217 | -.B \-s --small | |
1218 | -Reduce memory usage, for compression, decompression and testing. Files | |
1219 | -are decompressed and tested using a modified algorithm which only | |
1220 | -requires 2.5 bytes per block byte. This means any file can be | |
1221 | -decompressed in 2300k of memory, albeit at about half the normal speed. | |
1222 | - | |
1223 | -During compression, \-s selects a block size of 200k, which limits | |
1224 | -memory use to around the same figure, at the expense of your compression | |
1225 | -ratio. In short, if your machine is low on memory (8 megabytes or | |
1226 | -less), use \-s for everything. See MEMORY MANAGEMENT below. | |
1227 | -.TP | |
1228 | -.B \-q --quiet | |
1229 | -Suppress non-essential warning messages. Messages pertaining to | |
1230 | -I/O errors and other critical events will not be suppressed. | |
1231 | -.TP | |
1232 | -.B \-v --verbose | |
1233 | -Verbose mode -- show the compression ratio for each file processed. | |
1234 | -Further \-v's increase the verbosity level, spewing out lots of | |
1235 | -information which is primarily of interest for diagnostic purposes. | |
1236 | -.TP | |
1237 | -.B \-L --license -V --version | |
1238 | -Display the software version, license terms and conditions. | |
1239 | -.TP | |
15ee0650 | 1240 | -.B \-1 (or \-\-fast) to \-9 (or \-\-best) |
d967e3ec | 1241 | -Set the block size to 100 k, 200 k .. 900 k when compressing. Has no |
1242 | -effect when decompressing. See MEMORY MANAGEMENT below. | |
15ee0650 | 1243 | -The \-\-fast and \-\-best aliases are primarily for GNU gzip |
1244 | -compatibility. In particular, \-\-fast doesn't make things | |
1245 | -significantly faster. | |
1246 | -And \-\-best merely selects the default behaviour. | |
d967e3ec | 1247 | -.TP |
1248 | -.B \-- | |
1249 | -Treats all subsequent arguments as file names, even if they start | |
1250 | -with a dash. This is so you can handle files with names beginning | |
1251 | -with a dash, for example: bzip2 \-- \-myfilename. | |
1252 | -.TP | |
1253 | -.B \--repetitive-fast --repetitive-best | |
1254 | -These flags are redundant in versions 0.9.5 and above. They provided | |
1255 | -some coarse control over the behaviour of the sorting algorithm in | |
1256 | -earlier versions, which was sometimes useful. 0.9.5 and above have an | |
1257 | -improved algorithm which renders these flags irrelevant. | |
1258 | - | |
1259 | -.SH MEMORY MANAGEMENT | |
1260 | -.I bzip2 | |
1261 | -compresses large files in blocks. The block size affects | |
1262 | -both the compression ratio achieved, and the amount of memory needed for | |
1263 | -compression and decompression. The flags \-1 through \-9 | |
1264 | -specify the block size to be 100,000 bytes through 900,000 bytes (the | |
1265 | -default) respectively. At decompression time, the block size used for | |
1266 | -compression is read from the header of the compressed file, and | |
1267 | -.I bunzip2 | |
1268 | -then allocates itself just enough memory to decompress | |
1269 | -the file. Since block sizes are stored in compressed files, it follows | |
1270 | -that the flags \-1 to \-9 are irrelevant to and so ignored | |
1271 | -during decompression. | |
1272 | - | |
1273 | -Compression and decompression requirements, | |
1274 | -in bytes, can be estimated as: | |
1275 | - | |
1276 | - Compression: 400k + ( 8 x block size ) | |
1277 | - | |
1278 | - Decompression: 100k + ( 4 x block size ), or | |
1279 | - 100k + ( 2.5 x block size ) | |
1280 | - | |
1281 | -Larger block sizes give rapidly diminishing marginal returns. Most of | |
1282 | -the compression comes from the first two or three hundred k of block | |
1283 | -size, a fact worth bearing in mind when using | |
1284 | -.I bzip2 | |
1285 | -on small machines. | |
1286 | -It is also important to appreciate that the decompression memory | |
1287 | -requirement is set at compression time by the choice of block size. | |
1288 | - | |
1289 | -For files compressed with the default 900k block size, | |
1290 | -.I bunzip2 | |
1291 | -will require about 3700 kbytes to decompress. To support decompression | |
1292 | -of any file on a 4 megabyte machine, | |
1293 | -.I bunzip2 | |
1294 | -has an option to | |
1295 | -decompress using approximately half this amount of memory, about 2300 | |
1296 | -kbytes. Decompression speed is also halved, so you should use this | |
1297 | -option only where necessary. The relevant flag is -s. | |
1298 | - | |
1299 | -In general, try and use the largest block size memory constraints allow, | |
1300 | -since that maximises the compression achieved. Compression and | |
1301 | -decompression speed are virtually unaffected by block size. | |
1302 | - | |
1303 | -Another significant point applies to files which fit in a single block | |
1304 | --- that means most files you'd encounter using a large block size. The | |
1305 | -amount of real memory touched is proportional to the size of the file, | |
1306 | -since the file is smaller than a block. For example, compressing a file | |
1307 | -20,000 bytes long with the flag -9 will cause the compressor to | |
1308 | -allocate around 7600k of memory, but only touch 400k + 20000 * 8 = 560 | |
1309 | -kbytes of it. Similarly, the decompressor will allocate 3700k but only | |
1310 | -touch 100k + 20000 * 4 = 180 kbytes. | |
1311 | - | |
1312 | -Here is a table which summarises the maximum memory usage for different | |
1313 | -block sizes. Also recorded is the total compressed size for 14 files of | |
1314 | -the Calgary Text Compression Corpus totalling 3,141,622 bytes. This | |
1315 | -column gives some feel for how compression varies with block size. | |
1316 | -These figures tend to understate the advantage of larger block sizes for | |
1317 | -larger files, since the Corpus is dominated by smaller files. | |
1318 | - | |
1319 | - Compress Decompress Decompress Corpus | |
1320 | - Flag usage usage -s usage Size | |
1321 | - | |
1322 | - -1 1200k 500k 350k 914704 | |
1323 | - -2 2000k 900k 600k 877703 | |
1324 | - -3 2800k 1300k 850k 860338 | |
1325 | - -4 3600k 1700k 1100k 846899 | |
1326 | - -5 4400k 2100k 1350k 845160 | |
1327 | - -6 5200k 2500k 1600k 838626 | |
1328 | - -7 6100k 2900k 1850k 834096 | |
1329 | - -8 6800k 3300k 2100k 828642 | |
1330 | - -9 7600k 3700k 2350k 828642 | |
1331 | - | |
1332 | -.SH RECOVERING DATA FROM DAMAGED FILES | |
1333 | -.I bzip2 | |
1334 | -compresses files in blocks, usually 900kbytes long. Each | |
1335 | -block is handled independently. If a media or transmission error causes | |
1336 | -a multi-block .bz2 | |
1337 | -file to become damaged, it may be possible to | |
1338 | -recover data from the undamaged blocks in the file. | |
1339 | - | |
1340 | -The compressed representation of each block is delimited by a 48-bit | |
1341 | -pattern, which makes it possible to find the block boundaries with | |
1342 | -reasonable certainty. Each block also carries its own 32-bit CRC, so | |
1343 | -damaged blocks can be distinguished from undamaged ones. | |
1344 | - | |
1345 | -.I bzip2recover | |
1346 | -is a simple program whose purpose is to search for | |
1347 | -blocks in .bz2 files, and write each block out into its own .bz2 | |
1348 | -file. You can then use | |
1349 | -.I bzip2 | |
1350 | -\-t | |
1351 | -to test the | |
1352 | -integrity of the resulting files, and decompress those which are | |
1353 | -undamaged. | |
1354 | - | |
1355 | -.I bzip2recover | |
1356 | -takes a single argument, the name of the damaged file, | |
15ee0650 | 1357 | -and writes a number of files "rec00001file.bz2", |
1358 | -"rec00002file.bz2", etc, containing the extracted blocks. | |
d967e3ec | 1359 | -The output filenames are designed so that the use of |
1360 | -wildcards in subsequent processing -- for example, | |
15ee0650 | 1361 | -"bzip2 -dc rec*file.bz2 > recovered_data" -- processes the files in |
d967e3ec | 1362 | -the correct order. |
1363 | - | |
1364 | -.I bzip2recover | |
1365 | -should be of most use dealing with large .bz2 | |
1366 | -files, as these will contain many blocks. It is clearly | |
1367 | -futile to use it on damaged single-block files, since a | |
1368 | -damaged block cannot be recovered. If you wish to minimise | |
1369 | -any potential data loss through media or transmission errors, | |
1370 | -you might consider compressing with a smaller | |
1371 | -block size. | |
1372 | - | |
1373 | -.SH PERFORMANCE NOTES | |
1374 | -The sorting phase of compression gathers together similar strings in the | |
1375 | -file. Because of this, files containing very long runs of repeated | |
1376 | -symbols, like "aabaabaabaab ..." (repeated several hundred times) may | |
1377 | -compress more slowly than normal. Versions 0.9.5 and above fare much | |
1378 | -better than previous versions in this respect. The ratio between | |
1379 | -worst-case and average-case compression time is in the region of 10:1. | |
1380 | -For previous versions, this figure was more like 100:1. You can use the | |
1381 | -\-vvvv option to monitor progress in great detail, if you want. | |
1382 | - | |
1383 | -Decompression speed is unaffected by these phenomena. | |
1384 | - | |
1385 | -.I bzip2 | |
1386 | -usually allocates several megabytes of memory to operate | |
1387 | -in, and then charges all over it in a fairly random fashion. This means | |
1388 | -that performance, both for compressing and decompressing, is largely | |
1389 | -determined by the speed at which your machine can service cache misses. | |
1390 | -Because of this, small changes to the code to reduce the miss rate have | |
1391 | -been observed to give disproportionately large performance improvements. | |
1392 | -I imagine | |
1393 | -.I bzip2 | |
1394 | -will perform best on machines with very large caches. | |
1395 | - | |
1396 | -.SH CAVEATS | |
1397 | -I/O error messages are not as helpful as they could be. | |
1398 | -.I bzip2 | |
1399 | -tries hard to detect I/O errors and exit cleanly, but the details of | |
1400 | -what the problem is sometimes seem rather misleading. | |
1401 | - | |
15ee0650 | 1402 | -This manual page pertains to version 1.0.2 of |
d967e3ec | 1403 | -.I bzip2. |
15ee0650 | 1404 | -Compressed data created by this version is entirely forwards and |
1405 | -backwards compatible with the previous public releases, versions | |
1406 | -0.1pl2, 0.9.0, 0.9.5, 1.0.0 and 1.0.1, but with the following | |
1407 | -exception: 0.9.0 and above can correctly decompress multiple | |
1408 | -concatenated compressed files. 0.1pl2 cannot do this; it will stop | |
1409 | -after decompressing just the first file in the stream. | |
d967e3ec | 1410 | - |
1411 | -.I bzip2recover | |
15ee0650 | 1412 | -versions prior to this one, 1.0.2, used 32-bit integers to represent |
1413 | -bit positions in compressed files, so it could not handle compressed | |
1414 | -files more than 512 megabytes long. Version 1.0.2 and above uses | |
1415 | -64-bit ints on some platforms which support them (GNU supported | |
1416 | -targets, and Windows). To establish whether or not bzip2recover was | |
1417 | -built with such a limitation, run it without arguments. In any event | |
1418 | -you can build yourself an unlimited version if you can recompile it | |
1419 | -with MaybeUInt64 set to be an unsigned 64-bit integer. | |
1420 | - | |
1421 | - | |
d967e3ec | 1422 | - |
1423 | -.SH AUTHOR | |
1424 | -Julian Seward, jseward@acm.org. | |
1425 | - | |
15ee0650 | 1426 | -http://sources.redhat.com/bzip2 |
d967e3ec | 1427 | - |
1428 | -The ideas embodied in | |
1429 | -.I bzip2 | |
1430 | -are due to (at least) the following | |
1431 | -people: Michael Burrows and David Wheeler (for the block sorting | |
1432 | -transformation), David Wheeler (again, for the Huffman coder), Peter | |
1433 | -Fenwick (for the structured coding model in the original | |
1434 | -.I bzip, | |
1435 | -and many refinements), and Alistair Moffat, Radford Neal and Ian Witten | |
1436 | -(for the arithmetic coder in the original | |
1437 | -.I bzip). | |
1438 | -I am much | |
1439 | -indebted for their help, support and advice. See the manual in the | |
1440 | -source distribution for pointers to sources of documentation. Christian | |
1441 | -von Roques encouraged me to look for faster sorting algorithms, so as to | |
1442 | -speed up compression. Bela Lubkin encouraged me to improve the | |
15ee0650 | 1443 | -worst-case compression performance. |
1444 | -The bz* scripts are derived from those of GNU gzip. | |
1445 | -Many people sent patches, helped | |
d967e3ec | 1446 | -with portability problems, lent machines, gave advice and were generally |
1447 | -helpful. | |
15ee0650 | 1448 | diff -Nru bzip2-1.0.2/bzip2.1.preformatted bzip2-1.0.2.new/bzip2.1.preformatted |
1449 | --- bzip2-1.0.2/bzip2.1.preformatted Thu Jan 3 00:15:56 2002 | |
1450 | +++ bzip2-1.0.2.new/bzip2.1.preformatted Thu Jan 1 01:00:00 1970 | |
1451 | @@ -1,398 +0,0 @@ | |
d967e3ec | 1452 | -bzip2(1) bzip2(1) |
1453 | - | |
1454 | - | |
15ee0650 | 1455 | - |
d967e3ec | 1456 | -N\bNA\bAM\bME\bE |
15ee0650 | 1457 | - bzip2, bunzip2 - a block-sorting file compressor, v1.0.2 |
d967e3ec | 1458 | - bzcat - decompresses files to stdout |
1459 | - bzip2recover - recovers data from damaged bzip2 files | |
1460 | - | |
1461 | - | |
1462 | -S\bSY\bYN\bNO\bOP\bPS\bSI\bIS\bS | |
1463 | - b\bbz\bzi\bip\bp2\b2 [ -\b-c\bcd\bdf\bfk\bkq\bqs\bst\btv\bvz\bzV\bVL\bL1\b12\b23\b34\b45\b56\b67\b78\b89\b9 ] [ _\bf_\bi_\bl_\be_\bn_\ba_\bm_\be_\bs _\b._\b._\b. ] | |
1464 | - b\bbu\bun\bnz\bzi\bip\bp2\b2 [ -\b-f\bfk\bkv\bvs\bsV\bVL\bL ] [ _\bf_\bi_\bl_\be_\bn_\ba_\bm_\be_\bs _\b._\b._\b. ] | |
1465 | - b\bbz\bzc\bca\bat\bt [ -\b-s\bs ] [ _\bf_\bi_\bl_\be_\bn_\ba_\bm_\be_\bs _\b._\b._\b. ] | |
1466 | - b\bbz\bzi\bip\bp2\b2r\bre\bec\bco\bov\bve\ber\br _\bf_\bi_\bl_\be_\bn_\ba_\bm_\be | |
1467 | - | |
1468 | - | |
1469 | -D\bDE\bES\bSC\bCR\bRI\bIP\bPT\bTI\bIO\bON\bN | |
1470 | - _\bb_\bz_\bi_\bp_\b2 compresses files using the Burrows-Wheeler block | |
1471 | - sorting text compression algorithm, and Huffman coding. | |
1472 | - Compression is generally considerably better than that | |
1473 | - achieved by more conventional LZ77/LZ78-based compressors, | |
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