28 files changed, 7892 insertions, 0 deletions
diff --git a/pwmanager/libcrypt/zlib/ChangeLog b/pwmanager/libcrypt/zlib/ChangeLog new file mode 100644 index 0000000..5f06bcc --- a/dev/null +++ b/pwmanager/libcrypt/zlib/ChangeLog | |||
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1 | 2002-03-12 Werner Koch <wk@gnupg.org> | ||
2 | |||
3 | Merged changes from zlib 1.1.4. | ||
4 | |||
5 | Sat Feb 13 12:04:43 CET 1999 Werner Koch <wk@isil.d.shuttle.de> | ||
6 | |||
7 | * Makefile.am: Removed -Wall | ||
8 | |||
9 | Wed Jan 20 21:40:21 CET 1999 Werner Koch <wk@isil.d.shuttle.de> | ||
10 | |||
11 | * Makefile.am: Corrected the list of sources | ||
12 | |||
13 | Wed Jan 13 14:10:15 CET 1999 Werner Koch <wk@isil.d.shuttle.de> | ||
14 | |||
15 | Merged version 1.1.3 with the previousy used 1.0.4 | ||
16 | |||
17 | Thu Feb 12 12:20:45 1998 Werner Koch (wk@frodo) | ||
18 | |||
19 | Removed a couple of files, as this is only used if zlib is | ||
20 | missing on a system. Added automake stuff | ||
21 | |||
22 | |||
23 | ChangeLog file for zlib | ||
24 | |||
25 | |||
26 | Changes in 1.1.4 (11 March 2002) | ||
27 | - ZFREE was repeated on same allocation on some error conditions. | ||
28 | This creates a security problem described in | ||
29 | http://www.zlib.org/advisory-2002-03-11.txt | ||
30 | - Returned incorrect error (Z_MEM_ERROR) on some invalid data | ||
31 | - Avoid accesses before window for invalid distances with inflate window | ||
32 | less than 32K. | ||
33 | - force windowBits > 8 to avoid a bug in the encoder for a window size | ||
34 | of 256 bytes. (A complete fix will be available in 1.1.5). | ||
35 | |||
36 | Changes in 1.1.3 (9 July 1998) | ||
37 | - fix "an inflate input buffer bug that shows up on rare but persistent | ||
38 | occasions" (Mark) | ||
39 | - fix gzread and gztell for concatenated .gz files (Didier Le Botlan) | ||
40 | - fix gzseek(..., SEEK_SET) in write mode | ||
41 | - fix crc check after a gzeek (Frank Faubert) | ||
42 | - fix miniunzip when the last entry in a zip file is itself a zip file | ||
43 | (J Lillge) | ||
44 | - add contrib/asm586 and contrib/asm686 (Brian Raiter) | ||
45 | See http://www.muppetlabs.com/~breadbox/software/assembly.html | ||
46 | - add support for Delphi 3 in contrib/delphi (Bob Dellaca) | ||
47 | - add support for C++Builder 3 and Delphi 3 in contrib/delphi2 (Davide Moretti) | ||
48 | - do not exit prematurely in untgz if 0 at start of block (Magnus Holmgren) | ||
49 | - use macro EXTERN instead of extern to support DLL for BeOS (Sander Stoks) | ||
50 | - added a FAQ file | ||
51 | |||
52 | - Support gzdopen on Mac with Metrowerks (Jason Linhart) | ||
53 | - Do not redefine Byte on Mac (Brad Pettit & Jason Linhart) | ||
54 | - define SEEK_END too if SEEK_SET is not defined (Albert Chin-A-Young) | ||
55 | - avoid some warnings with Borland C (Tom Tanner) | ||
56 | - fix a problem in contrib/minizip/zip.c for 16-bit MSDOS (Gilles Vollant) | ||
57 | - emulate utime() for WIN32 in contrib/untgz (Gilles Vollant) | ||
58 | - allow several arguments to configure (Tim Mooney, Frodo Looijaard) | ||
59 | - use libdir and includedir in Makefile.in (Tim Mooney) | ||
60 | - support shared libraries on OSF1 V4 (Tim Mooney) | ||
61 | - remove so_locations in "make clean" (Tim Mooney) | ||
62 | - fix maketree.c compilation error (Glenn, Mark) | ||
63 | - Python interface to zlib now in Python 1.5 (Jeremy Hylton) | ||
64 | - new Makefile.riscos (Rich Walker) | ||
65 | - initialize static descriptors in trees.c for embedded targets (Nick Smith) | ||
66 | - use "foo-gz" in example.c for RISCOS and VMS (Nick Smith) | ||
67 | - add the OS/2 files in Makefile.in too (Andrew Zabolotny) | ||
68 | - fix fdopen and halloc macros for Microsoft C 6.0 (Tom Lane) | ||
69 | - fix maketree.c to allow clean compilation of inffixed.h (Mark) | ||
70 | - fix parameter check in deflateCopy (Gunther Nikl) | ||
71 | - cleanup trees.c, use compressed_len only in debug mode (Christian Spieler) | ||
72 | - Many portability patches by Christian Spieler: | ||
73 | . zutil.c, zutil.h: added "const" for zmem* | ||
74 | . Make_vms.com: fixed some typos | ||
75 | . Make_vms.com: msdos/Makefile.*: removed zutil.h from some dependency lists | ||
76 | . msdos/Makefile.msc: remove "default rtl link library" info from obj files | ||
77 | . msdos/Makefile.*: use model-dependent name for the built zlib library | ||
78 | . msdos/Makefile.emx, nt/Makefile.emx, nt/Makefile.gcc: | ||
79 | new makefiles, for emx (DOS/OS2), emx&rsxnt and mingw32 (Windows 9x / NT) | ||
80 | - use define instead of typedef for Bytef also for MSC small/medium (Tom Lane) | ||
81 | - replace __far with _far for better portability (Christian Spieler, Tom Lane) | ||
82 | - fix test for errno.h in configure (Tim Newsham) | ||
83 | |||
84 | Changes in 1.1.2 (19 March 98) | ||
85 | - added contrib/minzip, mini zip and unzip based on zlib (Gilles Vollant) | ||
86 | See http://www.winimage.com/zLibDll/unzip.html | ||
87 | - preinitialize the inflate tables for fixed codes, to make the code | ||
88 | completely thread safe (Mark) | ||
89 | - some simplifications and slight speed-up to the inflate code (Mark) | ||
90 | - fix gzeof on non-compressed files (Allan Schrum) | ||
91 | - add -std1 option in configure for OSF1 to fix gzprintf (Martin Mokrejs) | ||
92 | - use default value of 4K for Z_BUFSIZE for 16-bit MSDOS (Tim Wegner + Glenn) | ||
93 | - added os2/Makefile.def and os2/zlib.def (Andrew Zabolotny) | ||
94 | - add shared lib support for UNIX_SV4.2MP (MATSUURA Takanori) | ||
95 | - do not wrap extern "C" around system includes (Tom Lane) | ||
96 | - mention zlib binding for TCL in README (Andreas Kupries) | ||
97 | - added amiga/Makefile.pup for Amiga powerUP SAS/C PPC (Andreas Kleinert) | ||
98 | - allow "make install prefix=..." even after configure (Glenn Randers-Pehrson) | ||
99 | - allow "configure --prefix $HOME" (Tim Mooney) | ||
100 | - remove warnings in example.c and gzio.c (Glenn Randers-Pehrson) | ||
101 | - move Makefile.sas to amiga/Makefile.sas | ||
102 | |||
103 | Changes in 1.1.1 (27 Feb 98) | ||
104 | - fix macros _tr_tally_* in deflate.h for debug mode (Glenn Randers-Pehrson) | ||
105 | - remove block truncation heuristic which had very marginal effect for zlib | ||
106 | (smaller lit_bufsize than in gzip 1.2.4) and degraded a little the | ||
107 | compression ratio on some files. This also allows inlining _tr_tally for | ||
108 | matches in deflate_slow. | ||
109 | - added msdos/Makefile.w32 for WIN32 Microsoft Visual C++ (Bob Frazier) | ||
110 | |||
111 | Changes in 1.1.0 (24 Feb 98) | ||
112 | - do not return STREAM_END prematurely in inflate (John Bowler) | ||
113 | - revert to the zlib 1.0.8 inflate to avoid the gcc 2.8.0 bug (Jeremy Buhler) | ||
114 | - compile with -DFASTEST to get compression code optimized for speed only | ||
115 | - in minigzip, try mmap'ing the input file first (Miguel Albrecht) | ||
116 | - increase size of I/O buffers in minigzip.c and gzio.c (not a big gain | ||
117 | on Sun but significant on HP) | ||
118 | |||
119 | - add a pointer to experimental unzip library in README (Gilles Vollant) | ||
120 | - initialize variable gcc in configure (Chris Herborth) | ||
121 | |||
122 | Changes in 1.0.9 (17 Feb 1998) | ||
123 | - added gzputs and gzgets functions | ||
124 | - do not clear eof flag in gzseek (Mark Diekhans) | ||
125 | - fix gzseek for files in transparent mode (Mark Diekhans) | ||
126 | - do not assume that vsprintf returns the number of bytes written (Jens Krinke) | ||
127 | - replace EXPORT with ZEXPORT to avoid conflict with other programs | ||
128 | - added compress2 in zconf.h, zlib.def, zlib.dnt | ||
129 | - new asm code from Gilles Vollant in contrib/asm386 | ||
130 | - simplify the inflate code (Mark): | ||
131 | . Replace ZALLOC's in huft_build() with single ZALLOC in inflate_blocks_new() | ||
132 | . ZALLOC the length list in inflate_trees_fixed() instead of using stack | ||
133 | . ZALLOC the value area for huft_build() instead of using stack | ||
134 | . Simplify Z_FINISH check in inflate() | ||
135 | |||
136 | - Avoid gcc 2.8.0 comparison bug a little differently than zlib 1.0.8 | ||
137 | - in inftrees.c, avoid cc -O bug on HP (Farshid Elahi) | ||
138 | - in zconf.h move the ZLIB_DLL stuff earlier to avoid problems with | ||
139 | the declaration of FAR (Gilles VOllant) | ||
140 | - install libz.so* with mode 755 (executable) instead of 644 (Marc Lehmann) | ||
141 | - read_buf buf parameter of type Bytef* instead of charf* | ||
142 | - zmemcpy parameters are of type Bytef*, not charf* (Joseph Strout) | ||
143 | - do not redeclare unlink in minigzip.c for WIN32 (John Bowler) | ||
144 | - fix check for presence of directories in "make install" (Ian Willis) | ||
145 | |||
146 | Changes in 1.0.8 (27 Jan 1998) | ||
147 | - fixed offsets in contrib/asm386/gvmat32.asm (Gilles Vollant) | ||
148 | - fix gzgetc and gzputc for big endian systems (Markus Oberhumer) | ||
149 | - added compress2() to allow setting the compression level | ||
150 | - include sys/types.h to get off_t on some systems (Marc Lehmann & QingLong) | ||
151 | - use constant arrays for the static trees in trees.c instead of computing | ||
152 | them at run time (thanks to Ken Raeburn for this suggestion). To create | ||
153 | trees.h, compile with GEN_TREES_H and run "make test". | ||
154 | - check return code of example in "make test" and display result | ||
155 | - pass minigzip command line options to file_compress | ||
156 | - simplifying code of inflateSync to avoid gcc 2.8 bug | ||
157 | |||
158 | - support CC="gcc -Wall" in configure -s (QingLong) | ||
159 | - avoid a flush caused by ftell in gzopen for write mode (Ken Raeburn) | ||
160 | - fix test for shared library support to avoid compiler warnings | ||
161 | - zlib.lib -> zlib.dll in msdos/zlib.rc (Gilles Vollant) | ||
162 | - check for TARGET_OS_MAC in addition to MACOS (Brad Pettit) | ||
163 | - do not use fdopen for Metrowerks on Mac (Brad Pettit)) | ||
164 | - add checks for gzputc and gzputc in example.c | ||
165 | - avoid warnings in gzio.c and deflate.c (Andreas Kleinert) | ||
166 | - use const for the CRC table (Ken Raeburn) | ||
167 | - fixed "make uninstall" for shared libraries | ||
168 | - use Tracev instead of Trace in infblock.c | ||
169 | - in example.c use correct compressed length for test_sync | ||
170 | - suppress +vnocompatwarnings in configure for HPUX (not always supported) | ||
171 | |||
172 | Changes in 1.0.7 (20 Jan 1998) | ||
173 | - fix gzseek which was broken in write mode | ||
174 | - return error for gzseek to negative absolute position | ||
175 | - fix configure for Linux (Chun-Chung Chen) | ||
176 | - increase stack space for MSC (Tim Wegner) | ||
177 | - get_crc_table and inflateSyncPoint are EXPORTed (Gilles Vollant) | ||
178 | - define EXPORTVA for gzprintf (Gilles Vollant) | ||
179 | - added man page zlib.3 (Rick Rodgers) | ||
180 | - for contrib/untgz, fix makedir() and improve Makefile | ||
181 | |||
182 | - check gzseek in write mode in example.c | ||
183 | - allocate extra buffer for seeks only if gzseek is actually called | ||
184 | - avoid signed/unsigned comparisons (Tim Wegner, Gilles Vollant) | ||
185 | - add inflateSyncPoint in zconf.h | ||
186 | - fix list of exported functions in nt/zlib.dnt and mdsos/zlib.def | ||
187 | |||
188 | Changes in 1.0.6 (19 Jan 1998) | ||
189 | - add functions gzprintf, gzputc, gzgetc, gztell, gzeof, gzseek, gzrewind and | ||
190 | gzsetparams (thanks to Roland Giersig and Kevin Ruland for some of this code) | ||
191 | - Fix a deflate bug occuring only with compression level 0 (thanks to | ||
192 | Andy Buckler for finding this one). | ||
193 | - In minigzip, pass transparently also the first byte for .Z files. | ||
194 | - return Z_BUF_ERROR instead of Z_OK if output buffer full in uncompress() | ||
195 | - check Z_FINISH in inflate (thanks to Marc Schluper) | ||
196 | - Implement deflateCopy (thanks to Adam Costello) | ||
197 | - make static libraries by default in configure, add --shared option. | ||
198 | - move MSDOS or Windows specific files to directory msdos | ||
199 | - suppress the notion of partial flush to simplify the interface | ||
200 | (but the symbol Z_PARTIAL_FLUSH is kept for compatibility with 1.0.4) | ||
201 | - suppress history buffer provided by application to simplify the interface | ||
202 | (this feature was not implemented anyway in 1.0.4) | ||
203 | - next_in and avail_in must be initialized before calling inflateInit or | ||
204 | inflateInit2 | ||
205 | - add EXPORT in all exported functions (for Windows DLL) | ||
206 | - added Makefile.nt (thanks to Stephen Williams) | ||
207 | - added the unsupported "contrib" directory: | ||
208 | contrib/asm386/ by Gilles Vollant <info@winimage.com> | ||
209 | 386 asm code replacing longest_match(). | ||
210 | contrib/iostream/ by Kevin Ruland <kevin@rodin.wustl.edu> | ||
211 | A C++ I/O streams interface to the zlib gz* functions | ||
212 | contrib/iostream2/ by Tyge Løvset <Tyge.Lovset@cmr.no> | ||
213 | Another C++ I/O streams interface | ||
214 | contrib/untgz/ by "Pedro A. Aranda Guti\irrez" <paag@tid.es> | ||
215 | A very simple tar.gz file extractor using zlib | ||
216 | contrib/visual-basic.txt by Carlos Rios <c_rios@sonda.cl> | ||
217 | How to use compress(), uncompress() and the gz* functions from VB. | ||
218 | - pass params -f (filtered data), -h (huffman only), -1 to -9 (compression | ||
219 | level) in minigzip (thanks to Tom Lane) | ||
220 | |||
221 | - use const for rommable constants in deflate | ||
222 | - added test for gzseek and gztell in example.c | ||
223 | - add undocumented function inflateSyncPoint() (hack for Paul Mackerras) | ||
224 | - add undocumented function zError to convert error code to string | ||
225 | (for Tim Smithers) | ||
226 | - Allow compilation of gzio with -DNO_DEFLATE to avoid the compression code. | ||
227 | - Use default memcpy for Symantec MSDOS compiler. | ||
228 | - Add EXPORT keyword for check_func (needed for Windows DLL) | ||
229 | - add current directory to LD_LIBRARY_PATH for "make test" | ||
230 | - create also a link for libz.so.1 | ||
231 | - added support for FUJITSU UXP/DS (thanks to Toshiaki Nomura) | ||
232 | - use $(SHAREDLIB) instead of libz.so in Makefile.in (for HPUX) | ||
233 | - added -soname for Linux in configure (Chun-Chung Chen, | ||
234 | - assign numbers to the exported functions in zlib.def (for Windows DLL) | ||
235 | - add advice in zlib.h for best usage of deflateSetDictionary | ||
236 | - work around compiler bug on Atari (cast Z_NULL in call of s->checkfn) | ||
237 | - allow compilation with ANSI keywords only enabled for TurboC in large model | ||
238 | - avoid "versionString"[0] (Borland bug) | ||
239 | - add NEED_DUMMY_RETURN for Borland | ||
240 | - use variable z_verbose for tracing in debug mode (L. Peter Deutsch). | ||
241 | - allow compilation with CC | ||
242 | - defined STDC for OS/2 (David Charlap) | ||
243 | - limit external names to 8 chars for MVS (Thomas Lund) | ||
244 | - in minigzip.c, use static buffers only for 16-bit systems | ||
245 | - fix suffix check for "minigzip -d foo.gz" | ||
246 | - do not return an error for the 2nd of two consecutive gzflush() (Felix Lee) | ||
247 | - use _fdopen instead of fdopen for MSC >= 6.0 (Thomas Fanslau) | ||
248 | - added makelcc.bat for lcc-win32 (Tom St Denis) | ||
249 | - in Makefile.dj2, use copy and del instead of install and rm (Frank Donahoe) | ||
250 | - Avoid expanded $Id$. Use "rcs -kb" or "cvs admin -kb" to avoid Id expansion. | ||
251 | - check for unistd.h in configure (for off_t) | ||
252 | - remove useless check parameter in inflate_blocks_free | ||
253 | - avoid useless assignment of s->check to itself in inflate_blocks_new | ||
254 | - do not flush twice in gzclose (thanks to Ken Raeburn) | ||
255 | - rename FOPEN as F_OPEN to avoid clash with /usr/include/sys/file.h | ||
256 | - use NO_ERRNO_H instead of enumeration of operating systems with errno.h | ||
257 | - work around buggy fclose on pipes for HP/UX | ||
258 | - support zlib DLL with BORLAND C++ 5.0 (thanks to Glenn Randers-Pehrson) | ||
259 | - fix configure if CC is already equal to gcc | ||
260 | |||
261 | Changes in 1.0.5 (3 Jan 98) | ||
262 | - Fix inflate to terminate gracefully when fed corrupted or invalid data | ||
263 | - Use const for rommable constants in inflate | ||
264 | - Eliminate memory leaks on error conditions in inflate | ||
265 | - Removed some vestigial code in inflate | ||
266 | - Update web address in README | ||
267 | |||
268 | Changes in 1.0.4 (24 Jul 96) | ||
269 | - In very rare conditions, deflate(s, Z_FINISH) could fail to produce an EOF | ||
270 | bit, so the decompressor could decompress all the correct data but went | ||
271 | on to attempt decompressing extra garbage data. This affected minigzip too. | ||
272 | - zlibVersion and gzerror return const char* (needed for DLL) | ||
273 | - port to RISCOS (no fdopen, no multiple dots, no unlink, no fileno) | ||
274 | - use z_error only for DEBUG (avoid problem with DLLs) | ||
275 | |||
276 | Changes in 1.0.3 (2 Jul 96) | ||
277 | - use z_streamp instead of z_stream *, which is now a far pointer in MSDOS | ||
278 | small and medium models; this makes the library incompatible with previous | ||
279 | versions for these models. (No effect in large model or on other systems.) | ||
280 | - return OK instead of BUF_ERROR if previous deflate call returned with | ||
281 | avail_out as zero but there is nothing to do | ||
282 | - added memcmp for non STDC compilers | ||
283 | - define NO_DUMMY_DECL for more Mac compilers (.h files merged incorrectly) | ||
284 | - define __32BIT__ if __386__ or i386 is defined (pb. with Watcom and SCO) | ||
285 | - better check for 16-bit mode MSC (avoids problem with Symantec) | ||
286 | |||
287 | Changes in 1.0.2 (23 May 96) | ||
288 | - added Windows DLL support | ||
289 | - added a function zlibVersion (for the DLL support) | ||
290 | - fixed declarations using Bytef in infutil.c (pb with MSDOS medium model) | ||
291 | - Bytef is define's instead of typedef'd only for Borland C | ||
292 | - avoid reading uninitialized memory in example.c | ||
293 | - mention in README that the zlib format is now RFC1950 | ||
294 | - updated Makefile.dj2 | ||
295 | - added algorithm.doc | ||
296 | |||
297 | Changes in 1.0.1 (20 May 96) [1.0 skipped to avoid confusion] | ||
298 | - fix array overlay in deflate.c which sometimes caused bad compressed data | ||
299 | - fix inflate bug with empty stored block | ||
300 | - fix MSDOS medium model which was broken in 0.99 | ||
301 | - fix deflateParams() which could generated bad compressed data. | ||
302 | - Bytef is define'd instead of typedef'ed (work around Borland bug) | ||
303 | - added an INDEX file | ||
304 | - new makefiles for DJGPP (Makefile.dj2), 32-bit Borland (Makefile.b32), | ||
305 | Watcom (Makefile.wat), Amiga SAS/C (Makefile.sas) | ||
306 | - speed up adler32 for modern machines without auto-increment | ||
307 | - added -ansi for IRIX in configure | ||
308 | - static_init_done in trees.c is an int | ||
309 | - define unlink as delete for VMS | ||
310 | - fix configure for QNX | ||
311 | - add configure branch for SCO and HPUX | ||
312 | - avoid many warnings (unused variables, dead assignments, etc...) | ||
313 | - no fdopen for BeOS | ||
314 | - fix the Watcom fix for 32 bit mode (define FAR as empty) | ||
315 | - removed redefinition of Byte for MKWERKS | ||
316 | - work around an MWKERKS bug (incorrect merge of all .h files) | ||
317 | |||
318 | Changes in 0.99 (27 Jan 96) | ||
319 | - allow preset dictionary shared between compressor and decompressor | ||
320 | - allow compression level 0 (no compression) | ||
321 | - add deflateParams in zlib.h: allow dynamic change of compression level | ||
322 | and compression strategy. | ||
323 | - test large buffers and deflateParams in example.c | ||
324 | - add optional "configure" to build zlib as a shared library | ||
325 | - suppress Makefile.qnx, use configure instead | ||
326 | - fixed deflate for 64-bit systems (detected on Cray) | ||
327 | - fixed inflate_blocks for 64-bit systems (detected on Alpha) | ||
328 | - declare Z_DEFLATED in zlib.h (possible parameter for deflateInit2) | ||
329 | - always return Z_BUF_ERROR when deflate() has nothing to do | ||
330 | - deflateInit and inflateInit are now macros to allow version checking | ||
331 | - prefix all global functions and types with z_ with -DZ_PREFIX | ||
332 | - make falloc completely reentrant (inftrees.c) | ||
333 | - fixed very unlikely race condition in ct_static_init | ||
334 | - free in reverse order of allocation to help memory manager | ||
335 | - use zlib-1.0/* instead of zlib/* inside the tar.gz | ||
336 | - make zlib warning-free with "gcc -O3 -Wall -Wwrite-strings -Wpointer-arith | ||
337 | -Wconversion -Wstrict-prototypes -Wmissing-prototypes" | ||
338 | - allow gzread on concatenated .gz files | ||
339 | - deflateEnd now returns Z_DATA_ERROR if it was premature | ||
340 | - deflate is finally (?) fully deterministic (no matches beyond end of input) | ||
341 | - Document Z_SYNC_FLUSH | ||
342 | - add uninstall in Makefile | ||
343 | - Check for __cpluplus in zlib.h | ||
344 | - Better test in ct_align for partial flush | ||
345 | - avoid harmless warnings for Borland C++ | ||
346 | - initialize hash_head in deflate.c | ||
347 | - avoid warning on fdopen (gzio.c) for HP cc -Aa | ||
348 | - include stdlib.h for STDC compilers | ||
349 | - include errno.h for Cray | ||
350 | - ignore error if ranlib doesn't exist | ||
351 | - call ranlib twice for NeXTSTEP | ||
352 | - use exec_prefix instead of prefix for libz.a | ||
353 | - renamed ct_* as _tr_* to avoid conflict with applications | ||
354 | - clear z->msg in inflateInit2 before any error return | ||
355 | - initialize opaque in example.c, gzio.c, deflate.c and inflate.c | ||
356 | - fixed typo in zconf.h (_GNUC__ => __GNUC__) | ||
357 | - check for WIN32 in zconf.h and zutil.c (avoid farmalloc in 32-bit mode) | ||
358 | - fix typo in Make_vms.com (f$trnlnm -> f$getsyi) | ||
359 | - in fcalloc, normalize pointer if size > 65520 bytes | ||
360 | - don't use special fcalloc for 32 bit Borland C++ | ||
361 | - use STDC instead of __GO32__ to avoid redeclaring exit, calloc, etc... | ||
362 | - use Z_BINARY instead of BINARY | ||
363 | - document that gzclose after gzdopen will close the file | ||
364 | - allow "a" as mode in gzopen. | ||
365 | - fix error checking in gzread | ||
366 | - allow skipping .gz extra-field on pipes | ||
367 | - added reference to Perl interface in README | ||
368 | - put the crc table in FAR data (I dislike more and more the medium model :) | ||
369 | - added get_crc_table | ||
370 | - added a dimension to all arrays (Borland C can't count). | ||
371 | - workaround Borland C bug in declaration of inflate_codes_new & inflate_fast | ||
372 | - guard against multiple inclusion of *.h (for precompiled header on Mac) | ||
373 | - Watcom C pretends to be Microsoft C small model even in 32 bit mode. | ||
374 | - don't use unsized arrays to avoid silly warnings by Visual C++: | ||
375 | warning C4746: 'inflate_mask' : unsized array treated as '__far' | ||
376 | (what's wrong with far data in far model?). | ||
377 | - define enum out of inflate_blocks_state to allow compilation with C++ | ||
378 | |||
379 | Changes in 0.95 (16 Aug 95) | ||
380 | - fix MSDOS small and medium model (now easier to adapt to any compiler) | ||
381 | - inlined send_bits | ||
382 | - fix the final (:-) bug for deflate with flush (output was correct but | ||
383 | not completely flushed in rare occasions). | ||
384 | - default window size is same for compression and decompression | ||
385 | (it's now sufficient to set MAX_WBITS in zconf.h). | ||
386 | - voidp -> voidpf and voidnp -> voidp (for consistency with other | ||
387 | typedefs and because voidnp was not near in large model). | ||
388 | |||
389 | Changes in 0.94 (13 Aug 95) | ||
390 | - support MSDOS medium model | ||
391 | - fix deflate with flush (could sometimes generate bad output) | ||
392 | - fix deflateReset (zlib header was incorrectly suppressed) | ||
393 | - added support for VMS | ||
394 | - allow a compression level in gzopen() | ||
395 | - gzflush now calls fflush | ||
396 | - For deflate with flush, flush even if no more input is provided. | ||
397 | - rename libgz.a as libz.a | ||
398 | - avoid complex expression in infcodes.c triggering Turbo C bug | ||
399 | - work around a problem with gcc on Alpha (in INSERT_STRING) | ||
400 | - don't use inline functions (problem with some gcc versions) | ||
401 | - allow renaming of Byte, uInt, etc... with #define. | ||
402 | - avoid warning about (unused) pointer before start of array in deflate.c | ||
403 | - avoid various warnings in gzio.c, example.c, infblock.c, adler32.c, zutil.c | ||
404 | - avoid reserved word 'new' in trees.c | ||
405 | |||
406 | Changes in 0.93 (25 June 95) | ||
407 | - temporarily disable inline functions | ||
408 | - make deflate deterministic | ||
409 | - give enough lookahead for PARTIAL_FLUSH | ||
410 | - Set binary mode for stdin/stdout in minigzip.c for OS/2 | ||
411 | - don't even use signed char in inflate (not portable enough) | ||
412 | - fix inflate memory leak for segmented architectures | ||
413 | |||
414 | Changes in 0.92 (3 May 95) | ||
415 | - don't assume that char is signed (problem on SGI) | ||
416 | - Clear bit buffer when starting a stored block | ||
417 | - no memcpy on Pyramid | ||
418 | - suppressed inftest.c | ||
419 | - optimized fill_window, put longest_match inline for gcc | ||
420 | - optimized inflate on stored blocks. | ||
421 | - untabify all sources to simplify patches | ||
422 | |||
423 | Changes in 0.91 (2 May 95) | ||
424 | - Default MEM_LEVEL is 8 (not 9 for Unix) as documented in zlib.h | ||
425 | - Document the memory requirements in zconf.h | ||
426 | - added "make install" | ||
427 | - fix sync search logic in inflateSync | ||
428 | - deflate(Z_FULL_FLUSH) now works even if output buffer too short | ||
429 | - after inflateSync, don't scare people with just "lo world" | ||
430 | - added support for DJGPP | ||
431 | |||
432 | Changes in 0.9 (1 May 95) | ||
433 | - don't assume that zalloc clears the allocated memory (the TurboC bug | ||
434 | was Mark's bug after all :) | ||
435 | - let again gzread copy uncompressed data unchanged (was working in 0.71) | ||
436 | - deflate(Z_FULL_FLUSH), inflateReset and inflateSync are now fully implemented | ||
437 | - added a test of inflateSync in example.c | ||
438 | - moved MAX_WBITS to zconf.h because users might want to change that. | ||
439 | - document explicitly that zalloc(64K) on MSDOS must return a normalized | ||
440 | pointer (zero offset) | ||
441 | - added Makefiles for Microsoft C, Turbo C, Borland C++ | ||
442 | - faster crc32() | ||
443 | |||
444 | Changes in 0.8 (29 April 95) | ||
445 | - added fast inflate (inffast.c) | ||
446 | - deflate(Z_FINISH) now returns Z_STREAM_END when done. Warning: this | ||
447 | is incompatible with previous versions of zlib which returned Z_OK. | ||
448 | - work around a TurboC compiler bug (bad code for b << 0, see infutil.h) | ||
449 | (actually that was not a compiler bug, see 0.81 above) | ||
450 | - gzread no longer reads one extra byte in certain cases | ||
451 | - In gzio destroy(), don't reference a freed structure | ||
452 | - avoid many warnings for MSDOS | ||
453 | - avoid the ERROR symbol which is used by MS Windows | ||
454 | |||
455 | Changes in 0.71 (14 April 95) | ||
456 | - Fixed more MSDOS compilation problems :( There is still a bug with | ||
457 | TurboC large model. | ||
458 | |||
459 | Changes in 0.7 (14 April 95) | ||
460 | - Added full inflate support. | ||
461 | - Simplified the crc32() interface. The pre- and post-conditioning | ||
462 | (one's complement) is now done inside crc32(). WARNING: this is | ||
463 | incompatible with previous versions; see zlib.h for the new usage. | ||
464 | |||
465 | Changes in 0.61 (12 April 95) | ||
466 | - workaround for a bug in TurboC. example and minigzip now work on MSDOS. | ||
467 | |||
468 | Changes in 0.6 (11 April 95) | ||
469 | - added minigzip.c | ||
470 | - added gzdopen to reopen a file descriptor as gzFile | ||
471 | - added transparent reading of non-gziped files in gzread. | ||
472 | - fixed bug in gzread (don't read crc as data) | ||
473 | - fixed bug in destroy (gzio.c) (don't return Z_STREAM_END for gzclose). | ||
474 | - don't allocate big arrays in the stack (for MSDOS) | ||
475 | - fix some MSDOS compilation problems | ||
476 | |||
477 | Changes in 0.5: | ||
478 | - do real compression in deflate.c. Z_PARTIAL_FLUSH is supported but | ||
479 | not yet Z_FULL_FLUSH. | ||
480 | - support decompression but only in a single step (forced Z_FINISH) | ||
481 | - added opaque object for zalloc and zfree. | ||
482 | - added deflateReset and inflateReset | ||
483 | - added a variable zlib_version for consistency checking. | ||
484 | - renamed the 'filter' parameter of deflateInit2 as 'strategy'. | ||
485 | Added Z_FILTERED and Z_HUFFMAN_ONLY constants. | ||
486 | |||
487 | Changes in 0.4: | ||
488 | - avoid "zip" everywhere, use zlib instead of ziplib. | ||
489 | - suppress Z_BLOCK_FLUSH, interpret Z_PARTIAL_FLUSH as block flush | ||
490 | if compression method == 8. | ||
491 | - added adler32 and crc32 | ||
492 | - renamed deflateOptions as deflateInit2, call one or the other but not both | ||
493 | - added the method parameter for deflateInit2. | ||
494 | - added inflateInit2 | ||
495 | - simplied considerably deflateInit and inflateInit by not supporting | ||
496 | user-provided history buffer. This is supported only in deflateInit2 | ||
497 | and inflateInit2. | ||
498 | |||
499 | Changes in 0.3: | ||
500 | - prefix all macro names with Z_ | ||
501 | - use Z_FINISH instead of deflateEnd to finish compression. | ||
502 | - added Z_HUFFMAN_ONLY | ||
503 | - added gzerror() | ||
504 | |||
505 | |||
diff --git a/pwmanager/libcrypt/zlib/README b/pwmanager/libcrypt/zlib/README new file mode 100644 index 0000000..8ff4587 --- a/dev/null +++ b/pwmanager/libcrypt/zlib/README | |||
@@ -0,0 +1,148 @@ | |||
1 | zlib 1.1.3 is a general purpose data compression library. All the code | ||
2 | is thread safe. The data format used by the zlib library | ||
3 | is described by RFCs (Request for Comments) 1950 to 1952 in the files | ||
4 | ftp://ds.internic.net/rfc/rfc1950.txt (zlib format), rfc1951.txt (deflate | ||
5 | format) and rfc1952.txt (gzip format). These documents are also available in | ||
6 | other formats from ftp://ftp.uu.net/graphics/png/documents/zlib/zdoc-index.html | ||
7 | |||
8 | All functions of the compression library are documented in the file zlib.h | ||
9 | (volunteer to write man pages welcome, contact jloup@gzip.org). A usage | ||
10 | example of the library is given in the file example.c which also tests that | ||
11 | the library is working correctly. Another example is given in the file | ||
12 | minigzip.c. The compression library itself is composed of all source files | ||
13 | except example.c and minigzip.c. | ||
14 | |||
15 | To compile all files and run the test program, follow the instructions | ||
16 | given at the top of Makefile. In short "make test; make install" | ||
17 | should work for most machines. For Unix: "configure; make test; make install" | ||
18 | For MSDOS, use one of the special makefiles such as Makefile.msc. | ||
19 | For VMS, use Make_vms.com or descrip.mms. | ||
20 | |||
21 | Questions about zlib should be sent to <zlib@quest.jpl.nasa.gov>, or to | ||
22 | Gilles Vollant <info@winimage.com> for the Windows DLL version. | ||
23 | The zlib home page is http://www.cdrom.com/pub/infozip/zlib/ | ||
24 | The official zlib ftp site is ftp://ftp.cdrom.com/pub/infozip/zlib/ | ||
25 | Before reporting a problem, please check those sites to verify that | ||
26 | you have the latest version of zlib; otherwise get the latest version and | ||
27 | check whether the problem still exists or not. | ||
28 | |||
29 | Mark Nelson <markn@tiny.com> wrote an article about zlib for the Jan. 1997 | ||
30 | issue of Dr. Dobb's Journal; a copy of the article is available in | ||
31 | http://web2.airmail.net/markn/articles/zlibtool/zlibtool.htm | ||
32 | |||
33 | The changes made in version 1.1.3 are documented in the file ChangeLog. | ||
34 | The main changes since 1.1.2 are: | ||
35 | |||
36 | - fix "an inflate input buffer bug that shows up on rare but persistent | ||
37 | occasions" (Mark) | ||
38 | - fix gzread and gztell for concatenated .gz files (Didier Le Botlan) | ||
39 | - fix gzseek(..., SEEK_SET) in write mode | ||
40 | - fix crc check after a gzeek (Frank Faubert) | ||
41 | - fix miniunzip when the last entry in a zip file is itself a zip file | ||
42 | (J Lillge) | ||
43 | - add contrib/asm586 and contrib/asm686 (Brian Raiter) | ||
44 | See http://www.muppetlabs.com/~breadbox/software/assembly.html | ||
45 | - add support for Delphi 3 in contrib/delphi (Bob Dellaca) | ||
46 | - add support for C++Builder 3 and Delphi 3 in contrib/delphi2 (Davide Moretti) | ||
47 | - do not exit prematurely in untgz if 0 at start of block (Magnus Holmgren) | ||
48 | - use macro EXTERN instead of extern to support DLL for BeOS (Sander Stoks) | ||
49 | - added a FAQ file | ||
50 | |||
51 | plus many changes for portability. | ||
52 | |||
53 | Unsupported third party contributions are provided in directory "contrib". | ||
54 | |||
55 | A Java implementation of zlib is available in the Java Development Kit 1.1 | ||
56 | http://www.javasoft.com/products/JDK/1.1/docs/api/Package-java.util.zip.html | ||
57 | See the zlib home page http://www.cdrom.com/pub/infozip/zlib/ for details. | ||
58 | |||
59 | A Perl interface to zlib written by Paul Marquess <pmarquess@bfsec.bt.co.uk> | ||
60 | is in the CPAN (Comprehensive Perl Archive Network) sites, such as: | ||
61 | ftp://ftp.cis.ufl.edu/pub/perl/CPAN/modules/by-module/Compress/Compress-Zlib* | ||
62 | |||
63 | A Python interface to zlib written by A.M. Kuchling <amk@magnet.com> | ||
64 | is available in Python 1.5 and later versions, see | ||
65 | http://www.python.org/doc/lib/module-zlib.html | ||
66 | |||
67 | A zlib binding for TCL written by Andreas Kupries <a.kupries@westend.com> | ||
68 | is availlable at http://www.westend.com/~kupries/doc/trf/man/man.html | ||
69 | |||
70 | An experimental package to read and write files in .zip format, | ||
71 | written on top of zlib by Gilles Vollant <info@winimage.com>, is | ||
72 | available at http://www.winimage.com/zLibDll/unzip.html | ||
73 | and also in the contrib/minizip directory of zlib. | ||
74 | |||
75 | |||
76 | Notes for some targets: | ||
77 | |||
78 | - To build a Windows DLL version, include in a DLL project zlib.def, zlib.rc | ||
79 | and all .c files except example.c and minigzip.c; compile with -DZLIB_DLL | ||
80 | The zlib DLL support was initially done by Alessandro Iacopetti and is | ||
81 | now maintained by Gilles Vollant <info@winimage.com>. Check the zlib DLL | ||
82 | home page at http://www.winimage.com/zLibDll | ||
83 | |||
84 | From Visual Basic, you can call the DLL functions which do not take | ||
85 | a structure as argument: compress, uncompress and all gz* functions. | ||
86 | See contrib/visual-basic.txt for more information, or get | ||
87 | http://www.tcfb.com/dowseware/cmp-z-it.zip | ||
88 | |||
89 | - For 64-bit Irix, deflate.c must be compiled without any optimization. | ||
90 | With -O, one libpng test fails. The test works in 32 bit mode (with | ||
91 | the -n32 compiler flag). The compiler bug has been reported to SGI. | ||
92 | |||
93 | - zlib doesn't work with gcc 2.6.3 on a DEC 3000/300LX under OSF/1 2.1 | ||
94 | it works when compiled with cc. | ||
95 | |||
96 | - on Digital Unix 4.0D (formely OSF/1) on AlphaServer, the cc option -std1 | ||
97 | is necessary to get gzprintf working correctly. This is done by configure. | ||
98 | |||
99 | - zlib doesn't work on HP-UX 9.05 with some versions of /bin/cc. It works | ||
100 | with other compilers. Use "make test" to check your compiler. | ||
101 | |||
102 | - gzdopen is not supported on RISCOS, BEOS and by some Mac compilers. | ||
103 | |||
104 | - For Turbo C the small model is supported only with reduced performance to | ||
105 | avoid any far allocation; it was tested with -DMAX_WBITS=11 -DMAX_MEM_LEVEL=3 | ||
106 | |||
107 | - For PalmOs, see http://www.cs.uit.no/~perm/PASTA/pilot/software.html | ||
108 | Per Harald Myrvang <perm@stud.cs.uit.no> | ||
109 | |||
110 | |||
111 | Acknowledgments: | ||
112 | |||
113 | The deflate format used by zlib was defined by Phil Katz. The deflate | ||
114 | and zlib specifications were written by L. Peter Deutsch. Thanks to all the | ||
115 | people who reported problems and suggested various improvements in zlib; | ||
116 | they are too numerous to cite here. | ||
117 | |||
118 | Copyright notice: | ||
119 | |||
120 | (C) 1995-1998 Jean-loup Gailly and Mark Adler | ||
121 | |||
122 | This software is provided 'as-is', without any express or implied | ||
123 | warranty. In no event will the authors be held liable for any damages | ||
124 | arising from the use of this software. | ||
125 | |||
126 | Permission is granted to anyone to use this software for any purpose, | ||
127 | including commercial applications, and to alter it and redistribute it | ||
128 | freely, subject to the following restrictions: | ||
129 | |||
130 | 1. The origin of this software must not be misrepresented; you must not | ||
131 | claim that you wrote the original software. If you use this software | ||
132 | in a product, an acknowledgment in the product documentation would be | ||
133 | appreciated but is not required. | ||
134 | 2. Altered source versions must be plainly marked as such, and must not be | ||
135 | misrepresented as being the original software. | ||
136 | 3. This notice may not be removed or altered from any source distribution. | ||
137 | |||
138 | Jean-loup Gailly Mark Adler | ||
139 | jloup@gzip.org madler@alumni.caltech.edu | ||
140 | |||
141 | If you use the zlib library in a product, we would appreciate *not* | ||
142 | receiving lengthy legal documents to sign. The sources are provided | ||
143 | for free but without warranty of any kind. The library has been | ||
144 | entirely written by Jean-loup Gailly and Mark Adler; it does not | ||
145 | include third-party code. | ||
146 | |||
147 | If you redistribute modified sources, we would appreciate that you include | ||
148 | in the file ChangeLog history information documenting your changes. | ||
diff --git a/pwmanager/libcrypt/zlib/adler32.c b/pwmanager/libcrypt/zlib/adler32.c new file mode 100644 index 0000000..fae88b6 --- a/dev/null +++ b/pwmanager/libcrypt/zlib/adler32.c | |||
@@ -0,0 +1,48 @@ | |||
1 | /* adler32.c -- compute the Adler-32 checksum of a data stream | ||
2 | * Copyright (C) 1995-2002 Mark Adler | ||
3 | * For conditions of distribution and use, see copyright notice in zlib.h | ||
4 | */ | ||
5 | |||
6 | /* @(#) $Id$ */ | ||
7 | |||
8 | #include "zlib.h" | ||
9 | |||
10 | #define BASE 65521L /* largest prime smaller than 65536 */ | ||
11 | #define NMAX 5552 | ||
12 | /* NMAX is the largest n such that 255n(n+1)/2 + (n+1)(BASE-1) <= 2^32-1 */ | ||
13 | |||
14 | #define DO1(buf,i) {s1 += buf[i]; s2 += s1;} | ||
15 | #define DO2(buf,i) DO1(buf,i); DO1(buf,i+1); | ||
16 | #define DO4(buf,i) DO2(buf,i); DO2(buf,i+2); | ||
17 | #define DO8(buf,i) DO4(buf,i); DO4(buf,i+4); | ||
18 | #define DO16(buf) DO8(buf,0); DO8(buf,8); | ||
19 | |||
20 | /* ========================================================================= */ | ||
21 | uLong ZEXPORT adler32(adler, buf, len) | ||
22 | uLong adler; | ||
23 | const Bytef *buf; | ||
24 | uInt len; | ||
25 | { | ||
26 | unsigned long s1 = adler & 0xffff; | ||
27 | unsigned long s2 = (adler >> 16) & 0xffff; | ||
28 | int k; | ||
29 | |||
30 | if (buf == Z_NULL) return 1L; | ||
31 | |||
32 | while (len > 0) { | ||
33 | k = len < NMAX ? len : NMAX; | ||
34 | len -= k; | ||
35 | while (k >= 16) { | ||
36 | DO16(buf); | ||
37 | buf += 16; | ||
38 | k -= 16; | ||
39 | } | ||
40 | if (k != 0) do { | ||
41 | s1 += *buf++; | ||
42 | s2 += s1; | ||
43 | } while (--k); | ||
44 | s1 %= BASE; | ||
45 | s2 %= BASE; | ||
46 | } | ||
47 | return (s2 << 16) | s1; | ||
48 | } | ||
diff --git a/pwmanager/libcrypt/zlib/algorithm.doc b/pwmanager/libcrypt/zlib/algorithm.doc new file mode 100644 index 0000000..01902af --- a/dev/null +++ b/pwmanager/libcrypt/zlib/algorithm.doc | |||
@@ -0,0 +1,105 @@ | |||
1 | 1. Compression algorithm (deflate) | ||
2 | |||
3 | The deflation algorithm used by zlib (also zip and gzip) is a variation of | ||
4 | LZ77 (Lempel-Ziv 1977, see reference below). It finds duplicated strings in | ||
5 | the input data. The second occurrence of a string is replaced by a | ||
6 | pointer to the previous string, in the form of a pair (distance, | ||
7 | length). Distances are limited to 32K bytes, and lengths are limited | ||
8 | to 258 bytes. When a string does not occur anywhere in the previous | ||
9 | 32K bytes, it is emitted as a sequence of literal bytes. (In this | ||
10 | description, `string' must be taken as an arbitrary sequence of bytes, | ||
11 | and is not restricted to printable characters.) | ||
12 | |||
13 | Literals or match lengths are compressed with one Huffman tree, and | ||
14 | match distances are compressed with another tree. The trees are stored | ||
15 | in a compact form at the start of each block. The blocks can have any | ||
16 | size (except that the compressed data for one block must fit in | ||
17 | available memory). A block is terminated when deflate() determines that | ||
18 | it would be useful to start another block with fresh trees. (This is | ||
19 | somewhat similar to the behavior of LZW-based _compress_.) | ||
20 | |||
21 | Duplicated strings are found using a hash table. All input strings of | ||
22 | length 3 are inserted in the hash table. A hash index is computed for | ||
23 | the next 3 bytes. If the hash chain for this index is not empty, all | ||
24 | strings in the chain are compared with the current input string, and | ||
25 | the longest match is selected. | ||
26 | |||
27 | The hash chains are searched starting with the most recent strings, to | ||
28 | favor small distances and thus take advantage of the Huffman encoding. | ||
29 | The hash chains are singly linked. There are no deletions from the | ||
30 | hash chains, the algorithm simply discards matches that are too old. | ||
31 | |||
32 | To avoid a worst-case situation, very long hash chains are arbitrarily | ||
33 | truncated at a certain length, determined by a runtime option (level | ||
34 | parameter of deflateInit). So deflate() does not always find the longest | ||
35 | possible match but generally finds a match which is long enough. | ||
36 | |||
37 | deflate() also defers the selection of matches with a lazy evaluation | ||
38 | mechanism. After a match of length N has been found, deflate() searches for a | ||
39 | longer match at the next input byte. If a longer match is found, the | ||
40 | previous match is truncated to a length of one (thus producing a single | ||
41 | literal byte) and the longer match is emitted afterwards. Otherwise, | ||
42 | the original match is kept, and the next match search is attempted only | ||
43 | N steps later. | ||
44 | |||
45 | The lazy match evaluation is also subject to a runtime parameter. If | ||
46 | the current match is long enough, deflate() reduces the search for a longer | ||
47 | match, thus speeding up the whole process. If compression ratio is more | ||
48 | important than speed, deflate() attempts a complete second search even if | ||
49 | the first match is already long enough. | ||
50 | |||
51 | The lazy match evaluation is not performed for the fastest compression | ||
52 | modes (level parameter 1 to 3). For these fast modes, new strings | ||
53 | are inserted in the hash table only when no match was found, or | ||
54 | when the match is not too long. This degrades the compression ratio | ||
55 | but saves time since there are both fewer insertions and fewer searches. | ||
56 | |||
57 | |||
58 | 2. Decompression algorithm (inflate) | ||
59 | |||
60 | The real question is, given a Huffman tree, how to decode fast. The most | ||
61 | important realization is that shorter codes are much more common than | ||
62 | longer codes, so pay attention to decoding the short codes fast, and let | ||
63 | the long codes take longer to decode. | ||
64 | |||
65 | inflate() sets up a first level table that covers some number of bits of | ||
66 | input less than the length of longest code. It gets that many bits from the | ||
67 | stream, and looks it up in the table. The table will tell if the next | ||
68 | code is that many bits or less and how many, and if it is, it will tell | ||
69 | the value, else it will point to the next level table for which inflate() | ||
70 | grabs more bits and tries to decode a longer code. | ||
71 | |||
72 | How many bits to make the first lookup is a tradeoff between the time it | ||
73 | takes to decode and the time it takes to build the table. If building the | ||
74 | table took no time (and if you had infinite memory), then there would only | ||
75 | be a first level table to cover all the way to the longest code. However, | ||
76 | building the table ends up taking a lot longer for more bits since short | ||
77 | codes are replicated many times in such a table. What inflate() does is | ||
78 | simply to make the number of bits in the first table a variable, and set it | ||
79 | for the maximum speed. | ||
80 | |||
81 | inflate() sends new trees relatively often, so it is possibly set for a | ||
82 | smaller first level table than an application that has only one tree for | ||
83 | all the data. For inflate, which has 286 possible codes for the | ||
84 | literal/length tree, the size of the first table is nine bits. Also the | ||
85 | distance trees have 30 possible values, and the size of the first table is | ||
86 | six bits. Note that for each of those cases, the table ended up one bit | ||
87 | longer than the ``average'' code length, i.e. the code length of an | ||
88 | approximately flat code which would be a little more than eight bits for | ||
89 | 286 symbols and a little less than five bits for 30 symbols. It would be | ||
90 | interesting to see if optimizing the first level table for other | ||
91 | applications gave values within a bit or two of the flat code size. | ||
92 | |||
93 | |||
94 | Jean-loup Gailly Mark Adler | ||
95 | gzip@prep.ai.mit.edu madler@alumni.caltech.edu | ||
96 | |||
97 | |||
98 | References: | ||
99 | |||
100 | [LZ77] Ziv J., Lempel A., ``A Universal Algorithm for Sequential Data | ||
101 | Compression,'' IEEE Transactions on Information Theory, Vol. 23, No. 3, | ||
102 | pp. 337-343. | ||
103 | |||
104 | ``DEFLATE Compressed Data Format Specification'' available in | ||
105 | ftp://ds.internic.net/rfc/rfc1951.txt | ||
diff --git a/pwmanager/libcrypt/zlib/compress.c b/pwmanager/libcrypt/zlib/compress.c new file mode 100644 index 0000000..814bd9d --- a/dev/null +++ b/pwmanager/libcrypt/zlib/compress.c | |||
@@ -0,0 +1,68 @@ | |||
1 | /* compress.c -- compress a memory buffer | ||
2 | * Copyright (C) 1995-2002 Jean-loup Gailly. | ||
3 | * For conditions of distribution and use, see copyright notice in zlib.h | ||
4 | */ | ||
5 | |||
6 | /* @(#) $Id$ */ | ||
7 | |||
8 | #include "zlib.h" | ||
9 | |||
10 | /* =========================================================================== | ||
11 | Compresses the source buffer into the destination buffer. The level | ||
12 | parameter has the same meaning as in deflateInit. sourceLen is the byte | ||
13 | length of the source buffer. Upon entry, destLen is the total size of the | ||
14 | destination buffer, which must be at least 0.1% larger than sourceLen plus | ||
15 | 12 bytes. Upon exit, destLen is the actual size of the compressed buffer. | ||
16 | |||
17 | compress2 returns Z_OK if success, Z_MEM_ERROR if there was not enough | ||
18 | memory, Z_BUF_ERROR if there was not enough room in the output buffer, | ||
19 | Z_STREAM_ERROR if the level parameter is invalid. | ||
20 | */ | ||
21 | int ZEXPORT compress2 (dest, destLen, source, sourceLen, level) | ||
22 | Bytef *dest; | ||
23 | uLongf *destLen; | ||
24 | const Bytef *source; | ||
25 | uLong sourceLen; | ||
26 | int level; | ||
27 | { | ||
28 | z_stream stream; | ||
29 | int err; | ||
30 | |||
31 | stream.next_in = (Bytef*)source; | ||
32 | stream.avail_in = (uInt)sourceLen; | ||
33 | #ifdef MAXSEG_64K | ||
34 | /* Check for source > 64K on 16-bit machine: */ | ||
35 | if ((uLong)stream.avail_in != sourceLen) return Z_BUF_ERROR; | ||
36 | #endif | ||
37 | stream.next_out = dest; | ||
38 | stream.avail_out = (uInt)*destLen; | ||
39 | if ((uLong)stream.avail_out != *destLen) return Z_BUF_ERROR; | ||
40 | |||
41 | stream.zalloc = (alloc_func)0; | ||
42 | stream.zfree = (free_func)0; | ||
43 | stream.opaque = (voidpf)0; | ||
44 | |||
45 | err = deflateInit(&stream, level); | ||
46 | if (err != Z_OK) return err; | ||
47 | |||
48 | err = deflate(&stream, Z_FINISH); | ||
49 | if (err != Z_STREAM_END) { | ||
50 | deflateEnd(&stream); | ||
51 | return err == Z_OK ? Z_BUF_ERROR : err; | ||
52 | } | ||
53 | *destLen = stream.total_out; | ||
54 | |||
55 | err = deflateEnd(&stream); | ||
56 | return err; | ||
57 | } | ||
58 | |||
59 | /* =========================================================================== | ||
60 | */ | ||
61 | int ZEXPORT compress (dest, destLen, source, sourceLen) | ||
62 | Bytef *dest; | ||
63 | uLongf *destLen; | ||
64 | const Bytef *source; | ||
65 | uLong sourceLen; | ||
66 | { | ||
67 | return compress2(dest, destLen, source, sourceLen, Z_DEFAULT_COMPRESSION); | ||
68 | } | ||
diff --git a/pwmanager/libcrypt/zlib/crc32.c b/pwmanager/libcrypt/zlib/crc32.c new file mode 100644 index 0000000..81edc19 --- a/dev/null +++ b/pwmanager/libcrypt/zlib/crc32.c | |||
@@ -0,0 +1,163 @@ | |||
1 | /* crc32.c -- compute the CRC-32 of a data stream | ||
2 | * Copyright (C) 1995-2002 Mark Adler | ||
3 | * For conditions of distribution and use, see copyright notice in zlib.h | ||
4 | */ | ||
5 | |||
6 | /* @(#) $Id$ */ | ||
7 | |||
8 | #include "zlib.h" | ||
9 | |||
10 | #define local static | ||
11 | |||
12 | #ifdef DYNAMIC_CRC_TABLE | ||
13 | |||
14 | local int crc_table_empty = 1; | ||
15 | local uLongf crc_table[256]; | ||
16 | local void make_crc_table OF((void)); | ||
17 | |||
18 | /* | ||
19 | Generate a table for a byte-wise 32-bit CRC calculation on the polynomial: | ||
20 | x^32+x^26+x^23+x^22+x^16+x^12+x^11+x^10+x^8+x^7+x^5+x^4+x^2+x+1. | ||
21 | |||
22 | Polynomials over GF(2) are represented in binary, one bit per coefficient, | ||
23 | with the lowest powers in the most significant bit. Then adding polynomials | ||
24 | is just exclusive-or, and multiplying a polynomial by x is a right shift by | ||
25 | one. If we call the above polynomial p, and represent a byte as the | ||
26 | polynomial q, also with the lowest power in the most significant bit (so the | ||
27 | byte 0xb1 is the polynomial x^7+x^3+x+1), then the CRC is (q*x^32) mod p, | ||
28 | where a mod b means the remainder after dividing a by b. | ||
29 | |||
30 | This calculation is done using the shift-register method of multiplying and | ||
31 | taking the remainder. The register is initialized to zero, and for each | ||
32 | incoming bit, x^32 is added mod p to the register if the bit is a one (where | ||
33 | x^32 mod p is p+x^32 = x^26+...+1), and the register is multiplied mod p by | ||
34 | x (which is shifting right by one and adding x^32 mod p if the bit shifted | ||
35 | out is a one). We start with the highest power (least significant bit) of | ||
36 | q and repeat for all eight bits of q. | ||
37 | |||
38 | The table is simply the CRC of all possible eight bit values. This is all | ||
39 | the information needed to generate CRC's on data a byte at a time for all | ||
40 | combinations of CRC register values and incoming bytes. | ||
41 | */ | ||
42 | local void make_crc_table() | ||
43 | { | ||
44 | uLong c; | ||
45 | int n, k; | ||
46 | uLong poly; /* polynomial exclusive-or pattern */ | ||
47 | /* terms of polynomial defining this crc (except x^32): */ | ||
48 | static const Byte p[] = {0,1,2,4,5,7,8,10,11,12,16,22,23,26}; | ||
49 | |||
50 | /* make exclusive-or pattern from polynomial (0xedb88320L) */ | ||
51 | poly = 0L; | ||
52 | for (n = 0; n < sizeof(p)/sizeof(Byte); n++) | ||
53 | poly |= 1L << (31 - p[n]); | ||
54 | |||
55 | for (n = 0; n < 256; n++) | ||
56 | { | ||
57 | c = (uLong)n; | ||
58 | for (k = 0; k < 8; k++) | ||
59 | c = c & 1 ? poly ^ (c >> 1) : c >> 1; | ||
60 | crc_table[n] = c; | ||
61 | } | ||
62 | crc_table_empty = 0; | ||
63 | } | ||
64 | #else | ||
65 | /* ======================================================================== | ||
66 | * Table of CRC-32's of all single-byte values (made by make_crc_table) | ||
67 | */ | ||
68 | local const uLongf crc_table[256] = { | ||
69 | 0x00000000L, 0x77073096L, 0xee0e612cL, 0x990951baL, 0x076dc419L, | ||
70 | 0x706af48fL, 0xe963a535L, 0x9e6495a3L, 0x0edb8832L, 0x79dcb8a4L, | ||
71 | 0xe0d5e91eL, 0x97d2d988L, 0x09b64c2bL, 0x7eb17cbdL, 0xe7b82d07L, | ||
72 | 0x90bf1d91L, 0x1db71064L, 0x6ab020f2L, 0xf3b97148L, 0x84be41deL, | ||
73 | 0x1adad47dL, 0x6ddde4ebL, 0xf4d4b551L, 0x83d385c7L, 0x136c9856L, | ||
74 | 0x646ba8c0L, 0xfd62f97aL, 0x8a65c9ecL, 0x14015c4fL, 0x63066cd9L, | ||
75 | 0xfa0f3d63L, 0x8d080df5L, 0x3b6e20c8L, 0x4c69105eL, 0xd56041e4L, | ||
76 | 0xa2677172L, 0x3c03e4d1L, 0x4b04d447L, 0xd20d85fdL, 0xa50ab56bL, | ||
77 | 0x35b5a8faL, 0x42b2986cL, 0xdbbbc9d6L, 0xacbcf940L, 0x32d86ce3L, | ||
78 | 0x45df5c75L, 0xdcd60dcfL, 0xabd13d59L, 0x26d930acL, 0x51de003aL, | ||
79 | 0xc8d75180L, 0xbfd06116L, 0x21b4f4b5L, 0x56b3c423L, 0xcfba9599L, | ||
80 | 0xb8bda50fL, 0x2802b89eL, 0x5f058808L, 0xc60cd9b2L, 0xb10be924L, | ||
81 | 0x2f6f7c87L, 0x58684c11L, 0xc1611dabL, 0xb6662d3dL, 0x76dc4190L, | ||
82 | 0x01db7106L, 0x98d220bcL, 0xefd5102aL, 0x71b18589L, 0x06b6b51fL, | ||
83 | 0x9fbfe4a5L, 0xe8b8d433L, 0x7807c9a2L, 0x0f00f934L, 0x9609a88eL, | ||
84 | 0xe10e9818L, 0x7f6a0dbbL, 0x086d3d2dL, 0x91646c97L, 0xe6635c01L, | ||
85 | 0x6b6b51f4L, 0x1c6c6162L, 0x856530d8L, 0xf262004eL, 0x6c0695edL, | ||
86 | 0x1b01a57bL, 0x8208f4c1L, 0xf50fc457L, 0x65b0d9c6L, 0x12b7e950L, | ||
87 | 0x8bbeb8eaL, 0xfcb9887cL, 0x62dd1ddfL, 0x15da2d49L, 0x8cd37cf3L, | ||
88 | 0xfbd44c65L, 0x4db26158L, 0x3ab551ceL, 0xa3bc0074L, 0xd4bb30e2L, | ||
89 | 0x4adfa541L, 0x3dd895d7L, 0xa4d1c46dL, 0xd3d6f4fbL, 0x4369e96aL, | ||
90 | 0x346ed9fcL, 0xad678846L, 0xda60b8d0L, 0x44042d73L, 0x33031de5L, | ||
91 | 0xaa0a4c5fL, 0xdd0d7cc9L, 0x5005713cL, 0x270241aaL, 0xbe0b1010L, | ||
92 | 0xc90c2086L, 0x5768b525L, 0x206f85b3L, 0xb966d409L, 0xce61e49fL, | ||
93 | 0x5edef90eL, 0x29d9c998L, 0xb0d09822L, 0xc7d7a8b4L, 0x59b33d17L, | ||
94 | 0x2eb40d81L, 0xb7bd5c3bL, 0xc0ba6cadL, 0xedb88320L, 0x9abfb3b6L, | ||
95 | 0x03b6e20cL, 0x74b1d29aL, 0xead54739L, 0x9dd277afL, 0x04db2615L, | ||
96 | 0x73dc1683L, 0xe3630b12L, 0x94643b84L, 0x0d6d6a3eL, 0x7a6a5aa8L, | ||
97 | 0xe40ecf0bL, 0x9309ff9dL, 0x0a00ae27L, 0x7d079eb1L, 0xf00f9344L, | ||
98 | 0x8708a3d2L, 0x1e01f268L, 0x6906c2feL, 0xf762575dL, 0x806567cbL, | ||
99 | 0x196c3671L, 0x6e6b06e7L, 0xfed41b76L, 0x89d32be0L, 0x10da7a5aL, | ||
100 | 0x67dd4accL, 0xf9b9df6fL, 0x8ebeeff9L, 0x17b7be43L, 0x60b08ed5L, | ||
101 | 0xd6d6a3e8L, 0xa1d1937eL, 0x38d8c2c4L, 0x4fdff252L, 0xd1bb67f1L, | ||
102 | 0xa6bc5767L, 0x3fb506ddL, 0x48b2364bL, 0xd80d2bdaL, 0xaf0a1b4cL, | ||
103 | 0x36034af6L, 0x41047a60L, 0xdf60efc3L, 0xa867df55L, 0x316e8eefL, | ||
104 | 0x4669be79L, 0xcb61b38cL, 0xbc66831aL, 0x256fd2a0L, 0x5268e236L, | ||
105 | 0xcc0c7795L, 0xbb0b4703L, 0x220216b9L, 0x5505262fL, 0xc5ba3bbeL, | ||
106 | 0xb2bd0b28L, 0x2bb45a92L, 0x5cb36a04L, 0xc2d7ffa7L, 0xb5d0cf31L, | ||
107 | 0x2cd99e8bL, 0x5bdeae1dL, 0x9b64c2b0L, 0xec63f226L, 0x756aa39cL, | ||
108 | 0x026d930aL, 0x9c0906a9L, 0xeb0e363fL, 0x72076785L, 0x05005713L, | ||
109 | 0x95bf4a82L, 0xe2b87a14L, 0x7bb12baeL, 0x0cb61b38L, 0x92d28e9bL, | ||
110 | 0xe5d5be0dL, 0x7cdcefb7L, 0x0bdbdf21L, 0x86d3d2d4L, 0xf1d4e242L, | ||
111 | 0x68ddb3f8L, 0x1fda836eL, 0x81be16cdL, 0xf6b9265bL, 0x6fb077e1L, | ||
112 | 0x18b74777L, 0x88085ae6L, 0xff0f6a70L, 0x66063bcaL, 0x11010b5cL, | ||
113 | 0x8f659effL, 0xf862ae69L, 0x616bffd3L, 0x166ccf45L, 0xa00ae278L, | ||
114 | 0xd70dd2eeL, 0x4e048354L, 0x3903b3c2L, 0xa7672661L, 0xd06016f7L, | ||
115 | 0x4969474dL, 0x3e6e77dbL, 0xaed16a4aL, 0xd9d65adcL, 0x40df0b66L, | ||
116 | 0x37d83bf0L, 0xa9bcae53L, 0xdebb9ec5L, 0x47b2cf7fL, 0x30b5ffe9L, | ||
117 | 0xbdbdf21cL, 0xcabac28aL, 0x53b39330L, 0x24b4a3a6L, 0xbad03605L, | ||
118 | 0xcdd70693L, 0x54de5729L, 0x23d967bfL, 0xb3667a2eL, 0xc4614ab8L, | ||
119 | 0x5d681b02L, 0x2a6f2b94L, 0xb40bbe37L, 0xc30c8ea1L, 0x5a05df1bL, | ||
120 | 0x2d02ef8dL | ||
121 | }; | ||
122 | #endif | ||
123 | |||
124 | /* ========================================================================= | ||
125 | * This function can be used by asm versions of crc32() | ||
126 | */ | ||
127 | const uLongf * ZEXPORT get_crc_table() | ||
128 | { | ||
129 | #ifdef DYNAMIC_CRC_TABLE | ||
130 | if (crc_table_empty) make_crc_table(); | ||
131 | #endif | ||
132 | return (const uLongf *)crc_table; | ||
133 | } | ||
134 | |||
135 | /* ========================================================================= */ | ||
136 | #define DO1(buf) crc = crc_table[((int)crc ^ (*buf++)) & 0xff] ^ (crc >> 8); | ||
137 | #define DO2(buf) DO1(buf); DO1(buf); | ||
138 | #define DO4(buf) DO2(buf); DO2(buf); | ||
139 | #define DO8(buf) DO4(buf); DO4(buf); | ||
140 | |||
141 | /* ========================================================================= */ | ||
142 | uLong ZEXPORT crc32(crc, buf, len) | ||
143 | uLong crc; | ||
144 | const Bytef *buf; | ||
145 | uInt len; | ||
146 | { | ||
147 | if (buf == Z_NULL) return 0L; | ||
148 | #ifdef DYNAMIC_CRC_TABLE | ||
149 | if (crc_table_empty) | ||
150 | make_crc_table(); | ||
151 | #endif | ||
152 | crc = crc ^ 0xffffffffL; | ||
153 | while (len >= 8) | ||
154 | { | ||
155 | DO8(buf); | ||
156 | len -= 8; | ||
157 | } | ||
158 | if (len) do { | ||
159 | DO1(buf); | ||
160 | } while (--len); | ||
161 | return crc ^ 0xffffffffL; | ||
162 | } | ||
163 | |||
diff --git a/pwmanager/libcrypt/zlib/deflate.c b/pwmanager/libcrypt/zlib/deflate.c new file mode 100644 index 0000000..16ebdad --- a/dev/null +++ b/pwmanager/libcrypt/zlib/deflate.c | |||
@@ -0,0 +1,1350 @@ | |||
1 | /* deflate.c -- compress data using the deflation algorithm | ||
2 | * Copyright (C) 1995-2002 Jean-loup Gailly. | ||
3 | * For conditions of distribution and use, see copyright notice in zlib.h | ||
4 | */ | ||
5 | |||
6 | /* | ||
7 | * ALGORITHM | ||
8 | * | ||
9 | * The "deflation" process depends on being able to identify portions | ||
10 | * of the input text which are identical to earlier input (within a | ||
11 | * sliding window trailing behind the input currently being processed). | ||
12 | * | ||
13 | * The most straightforward technique turns out to be the fastest for | ||
14 | * most input files: try all possible matches and select the longest. | ||
15 | * The key feature of this algorithm is that insertions into the string | ||
16 | * dictionary are very simple and thus fast, and deletions are avoided | ||
17 | * completely. Insertions are performed at each input character, whereas | ||
18 | * string matches are performed only when the previous match ends. So it | ||
19 | * is preferable to spend more time in matches to allow very fast string | ||
20 | * insertions and avoid deletions. The matching algorithm for small | ||
21 | * strings is inspired from that of Rabin & Karp. A brute force approach | ||
22 | * is used to find longer strings when a small match has been found. | ||
23 | * A similar algorithm is used in comic (by Jan-Mark Wams) and freeze | ||
24 | * (by Leonid Broukhis). | ||
25 | * A previous version of this file used a more sophisticated algorithm | ||
26 | * (by Fiala and Greene) which is guaranteed to run in linear amortized | ||
27 | * time, but has a larger average cost, uses more memory and is patented. | ||
28 | * However the F&G algorithm may be faster for some highly redundant | ||
29 | * files if the parameter max_chain_length (described below) is too large. | ||
30 | * | ||
31 | * ACKNOWLEDGEMENTS | ||
32 | * | ||
33 | * The idea of lazy evaluation of matches is due to Jan-Mark Wams, and | ||
34 | * I found it in 'freeze' written by Leonid Broukhis. | ||
35 | * Thanks to many people for bug reports and testing. | ||
36 | * | ||
37 | * REFERENCES | ||
38 | * | ||
39 | * Deutsch, L.P.,"DEFLATE Compressed Data Format Specification". | ||
40 | * Available in ftp://ds.internic.net/rfc/rfc1951.txt | ||
41 | * | ||
42 | * A description of the Rabin and Karp algorithm is given in the book | ||
43 | * "Algorithms" by R. Sedgewick, Addison-Wesley, p252. | ||
44 | * | ||
45 | * Fiala,E.R., and Greene,D.H. | ||
46 | * Data Compression with Finite Windows, Comm.ACM, 32,4 (1989) 490-595 | ||
47 | * | ||
48 | */ | ||
49 | |||
50 | /* @(#) $Id$ */ | ||
51 | |||
52 | #include "deflate.h" | ||
53 | |||
54 | const char deflate_copyright[] = | ||
55 | " deflate 1.1.4 Copyright 1995-2002 Jean-loup Gailly "; | ||
56 | /* | ||
57 | If you use the zlib library in a product, an acknowledgment is welcome | ||
58 | in the documentation of your product. If for some reason you cannot | ||
59 | include such an acknowledgment, I would appreciate that you keep this | ||
60 | copyright string in the executable of your product. | ||
61 | */ | ||
62 | |||
63 | /* =========================================================================== | ||
64 | * Function prototypes. | ||
65 | */ | ||
66 | typedef enum { | ||
67 | need_more, /* block not completed, need more input or more output */ | ||
68 | block_done, /* block flush performed */ | ||
69 | finish_started, /* finish started, need only more output at next deflate */ | ||
70 | finish_done /* finish done, accept no more input or output */ | ||
71 | } block_state; | ||
72 | |||
73 | typedef block_state (*compress_func) OF((deflate_state *s, int flush)); | ||
74 | /* Compression function. Returns the block state after the call. */ | ||
75 | |||
76 | local void fill_window OF((deflate_state *s)); | ||
77 | local block_state deflate_stored OF((deflate_state *s, int flush)); | ||
78 | local block_state deflate_fast OF((deflate_state *s, int flush)); | ||
79 | local block_state deflate_slow OF((deflate_state *s, int flush)); | ||
80 | local void lm_init OF((deflate_state *s)); | ||
81 | local void putShortMSB OF((deflate_state *s, uInt b)); | ||
82 | local void flush_pending OF((z_streamp strm)); | ||
83 | local int read_buf OF((z_streamp strm, Bytef *buf, unsigned size)); | ||
84 | #ifdef ASMV | ||
85 | void match_init OF((void)); /* asm code initialization */ | ||
86 | uInt longest_match OF((deflate_state *s, IPos cur_match)); | ||
87 | #else | ||
88 | local uInt longest_match OF((deflate_state *s, IPos cur_match)); | ||
89 | #endif | ||
90 | |||
91 | #ifdef DEBUG | ||
92 | local void check_match OF((deflate_state *s, IPos start, IPos match, | ||
93 | int length)); | ||
94 | #endif | ||
95 | |||
96 | /* =========================================================================== | ||
97 | * Local data | ||
98 | */ | ||
99 | |||
100 | #define NIL 0 | ||
101 | /* Tail of hash chains */ | ||
102 | |||
103 | #ifndef TOO_FAR | ||
104 | # define TOO_FAR 4096 | ||
105 | #endif | ||
106 | /* Matches of length 3 are discarded if their distance exceeds TOO_FAR */ | ||
107 | |||
108 | #define MIN_LOOKAHEAD (MAX_MATCH+MIN_MATCH+1) | ||
109 | /* Minimum amount of lookahead, except at the end of the input file. | ||
110 | * See deflate.c for comments about the MIN_MATCH+1. | ||
111 | */ | ||
112 | |||
113 | /* Values for max_lazy_match, good_match and max_chain_length, depending on | ||
114 | * the desired pack level (0..9). The values given below have been tuned to | ||
115 | * exclude worst case performance for pathological files. Better values may be | ||
116 | * found for specific files. | ||
117 | */ | ||
118 | typedef struct config_s { | ||
119 | ush good_length; /* reduce lazy search above this match length */ | ||
120 | ush max_lazy; /* do not perform lazy search above this match length */ | ||
121 | ush nice_length; /* quit search above this match length */ | ||
122 | ush max_chain; | ||
123 | compress_func func; | ||
124 | } config; | ||
125 | |||
126 | local const config configuration_table[10] = { | ||
127 | /* good lazy nice chain */ | ||
128 | /* 0 */ {0, 0, 0, 0, deflate_stored}, /* store only */ | ||
129 | /* 1 */ {4, 4, 8, 4, deflate_fast}, /* maximum speed, no lazy matches */ | ||
130 | /* 2 */ {4, 5, 16, 8, deflate_fast}, | ||
131 | /* 3 */ {4, 6, 32, 32, deflate_fast}, | ||
132 | |||
133 | /* 4 */ {4, 4, 16, 16, deflate_slow}, /* lazy matches */ | ||
134 | /* 5 */ {8, 16, 32, 32, deflate_slow}, | ||
135 | /* 6 */ {8, 16, 128, 128, deflate_slow}, | ||
136 | /* 7 */ {8, 32, 128, 256, deflate_slow}, | ||
137 | /* 8 */ {32, 128, 258, 1024, deflate_slow}, | ||
138 | /* 9 */ {32, 258, 258, 4096, deflate_slow}}; /* maximum compression */ | ||
139 | |||
140 | /* Note: the deflate() code requires max_lazy >= MIN_MATCH and max_chain >= 4 | ||
141 | * For deflate_fast() (levels <= 3) good is ignored and lazy has a different | ||
142 | * meaning. | ||
143 | */ | ||
144 | |||
145 | #define EQUAL 0 | ||
146 | /* result of memcmp for equal strings */ | ||
147 | |||
148 | struct static_tree_desc_s {int dummy;}; /* for buggy compilers */ | ||
149 | |||
150 | /* =========================================================================== | ||
151 | * Update a hash value with the given input byte | ||
152 | * IN assertion: all calls to to UPDATE_HASH are made with consecutive | ||
153 | * input characters, so that a running hash key can be computed from the | ||
154 | * previous key instead of complete recalculation each time. | ||
155 | */ | ||
156 | #define UPDATE_HASH(s,h,c) (h = (((h)<<s->hash_shift) ^ (c)) & s->hash_mask) | ||
157 | |||
158 | |||
159 | /* =========================================================================== | ||
160 | * Insert string str in the dictionary and set match_head to the previous head | ||
161 | * of the hash chain (the most recent string with same hash key). Return | ||
162 | * the previous length of the hash chain. | ||
163 | * If this file is compiled with -DFASTEST, the compression level is forced | ||
164 | * to 1, and no hash chains are maintained. | ||
165 | * IN assertion: all calls to to INSERT_STRING are made with consecutive | ||
166 | * input characters and the first MIN_MATCH bytes of str are valid | ||
167 | * (except for the last MIN_MATCH-1 bytes of the input file). | ||
168 | */ | ||
169 | #ifdef FASTEST | ||
170 | #define INSERT_STRING(s, str, match_head) \ | ||
171 | (UPDATE_HASH(s, s->ins_h, s->window[(str) + (MIN_MATCH-1)]), \ | ||
172 | match_head = s->head[s->ins_h], \ | ||
173 | s->head[s->ins_h] = (Pos)(str)) | ||
174 | #else | ||
175 | #define INSERT_STRING(s, str, match_head) \ | ||
176 | (UPDATE_HASH(s, s->ins_h, s->window[(str) + (MIN_MATCH-1)]), \ | ||
177 | s->prev[(str) & s->w_mask] = match_head = s->head[s->ins_h], \ | ||
178 | s->head[s->ins_h] = (Pos)(str)) | ||
179 | #endif | ||
180 | |||
181 | /* =========================================================================== | ||
182 | * Initialize the hash table (avoiding 64K overflow for 16 bit systems). | ||
183 | * prev[] will be initialized on the fly. | ||
184 | */ | ||
185 | #define CLEAR_HASH(s) \ | ||
186 | s->head[s->hash_size-1] = NIL; \ | ||
187 | zmemzero((Bytef *)s->head, (unsigned)(s->hash_size-1)*sizeof(*s->head)); | ||
188 | |||
189 | /* ========================================================================= */ | ||
190 | int ZEXPORT deflateInit_(strm, level, version, stream_size) | ||
191 | z_streamp strm; | ||
192 | int level; | ||
193 | const char *version; | ||
194 | int stream_size; | ||
195 | { | ||
196 | return deflateInit2_(strm, level, Z_DEFLATED, MAX_WBITS, DEF_MEM_LEVEL, | ||
197 | Z_DEFAULT_STRATEGY, version, stream_size); | ||
198 | /* To do: ignore strm->next_in if we use it as window */ | ||
199 | } | ||
200 | |||
201 | /* ========================================================================= */ | ||
202 | int ZEXPORT deflateInit2_(strm, level, method, windowBits, memLevel, strategy, | ||
203 | version, stream_size) | ||
204 | z_streamp strm; | ||
205 | int level; | ||
206 | int method; | ||
207 | int windowBits; | ||
208 | int memLevel; | ||
209 | int strategy; | ||
210 | const char *version; | ||
211 | int stream_size; | ||
212 | { | ||
213 | deflate_state *s; | ||
214 | int noheader = 0; | ||
215 | static const char* my_version = ZLIB_VERSION; | ||
216 | |||
217 | ushf *overlay; | ||
218 | /* We overlay pending_buf and d_buf+l_buf. This works since the average | ||
219 | * output size for (length,distance) codes is <= 24 bits. | ||
220 | */ | ||
221 | |||
222 | if (version == Z_NULL || version[0] != my_version[0] || | ||
223 | stream_size != sizeof(z_stream)) { | ||
224 | return Z_VERSION_ERROR; | ||
225 | } | ||
226 | if (strm == Z_NULL) return Z_STREAM_ERROR; | ||
227 | |||
228 | strm->msg = Z_NULL; | ||
229 | if (strm->zalloc == Z_NULL) { | ||
230 | strm->zalloc = zcalloc; | ||
231 | strm->opaque = (voidpf)0; | ||
232 | } | ||
233 | if (strm->zfree == Z_NULL) strm->zfree = zcfree; | ||
234 | |||
235 | if (level == Z_DEFAULT_COMPRESSION) level = 6; | ||
236 | #ifdef FASTEST | ||
237 | level = 1; | ||
238 | #endif | ||
239 | |||
240 | if (windowBits < 0) { /* undocumented feature: suppress zlib header */ | ||
241 | noheader = 1; | ||
242 | windowBits = -windowBits; | ||
243 | } | ||
244 | if (memLevel < 1 || memLevel > MAX_MEM_LEVEL || method != Z_DEFLATED || | ||
245 | windowBits < 9 || windowBits > 15 || level < 0 || level > 9 || | ||
246 | strategy < 0 || strategy > Z_HUFFMAN_ONLY) { | ||
247 | return Z_STREAM_ERROR; | ||
248 | } | ||
249 | s = (deflate_state *) ZALLOC(strm, 1, sizeof(deflate_state)); | ||
250 | if (s == Z_NULL) return Z_MEM_ERROR; | ||
251 | strm->state = (struct internal_state FAR *)s; | ||
252 | s->strm = strm; | ||
253 | |||
254 | s->noheader = noheader; | ||
255 | s->w_bits = windowBits; | ||
256 | s->w_size = 1 << s->w_bits; | ||
257 | s->w_mask = s->w_size - 1; | ||
258 | |||
259 | s->hash_bits = memLevel + 7; | ||
260 | s->hash_size = 1 << s->hash_bits; | ||
261 | s->hash_mask = s->hash_size - 1; | ||
262 | s->hash_shift = ((s->hash_bits+MIN_MATCH-1)/MIN_MATCH); | ||
263 | |||
264 | s->window = (Bytef *) ZALLOC(strm, s->w_size, 2*sizeof(Byte)); | ||
265 | s->prev = (Posf *) ZALLOC(strm, s->w_size, sizeof(Pos)); | ||
266 | s->head = (Posf *) ZALLOC(strm, s->hash_size, sizeof(Pos)); | ||
267 | |||
268 | s->lit_bufsize = 1 << (memLevel + 6); /* 16K elements by default */ | ||
269 | |||
270 | overlay = (ushf *) ZALLOC(strm, s->lit_bufsize, sizeof(ush)+2); | ||
271 | s->pending_buf = (uchf *) overlay; | ||
272 | s->pending_buf_size = (ulg)s->lit_bufsize * (sizeof(ush)+2L); | ||
273 | |||
274 | if (s->window == Z_NULL || s->prev == Z_NULL || s->head == Z_NULL || | ||
275 | s->pending_buf == Z_NULL) { | ||
276 | strm->msg = (char*)ERR_MSG(Z_MEM_ERROR); | ||
277 | deflateEnd (strm); | ||
278 | return Z_MEM_ERROR; | ||
279 | } | ||
280 | s->d_buf = overlay + s->lit_bufsize/sizeof(ush); | ||
281 | s->l_buf = s->pending_buf + (1+sizeof(ush))*s->lit_bufsize; | ||
282 | |||
283 | s->level = level; | ||
284 | s->strategy = strategy; | ||
285 | s->method = (Byte)method; | ||
286 | |||
287 | return deflateReset(strm); | ||
288 | } | ||
289 | |||
290 | /* ========================================================================= */ | ||
291 | int ZEXPORT deflateSetDictionary (strm, dictionary, dictLength) | ||
292 | z_streamp strm; | ||
293 | const Bytef *dictionary; | ||
294 | uInt dictLength; | ||
295 | { | ||
296 | deflate_state *s; | ||
297 | uInt length = dictLength; | ||
298 | uInt n; | ||
299 | IPos hash_head = 0; | ||
300 | |||
301 | if (strm == Z_NULL || strm->state == Z_NULL || dictionary == Z_NULL || | ||
302 | strm->state->status != INIT_STATE) return Z_STREAM_ERROR; | ||
303 | |||
304 | s = strm->state; | ||
305 | strm->adler = adler32(strm->adler, dictionary, dictLength); | ||
306 | |||
307 | if (length < MIN_MATCH) return Z_OK; | ||
308 | if (length > MAX_DIST(s)) { | ||
309 | length = MAX_DIST(s); | ||
310 | #ifndef USE_DICT_HEAD | ||
311 | dictionary += dictLength - length; /* use the tail of the dictionary */ | ||
312 | #endif | ||
313 | } | ||
314 | zmemcpy(s->window, dictionary, length); | ||
315 | s->strstart = length; | ||
316 | s->block_start = (long)length; | ||
317 | |||
318 | /* Insert all strings in the hash table (except for the last two bytes). | ||
319 | * s->lookahead stays null, so s->ins_h will be recomputed at the next | ||
320 | * call of fill_window. | ||
321 | */ | ||
322 | s->ins_h = s->window[0]; | ||
323 | UPDATE_HASH(s, s->ins_h, s->window[1]); | ||
324 | for (n = 0; n <= length - MIN_MATCH; n++) { | ||
325 | INSERT_STRING(s, n, hash_head); | ||
326 | } | ||
327 | if (hash_head) hash_head = 0; /* to make compiler happy */ | ||
328 | return Z_OK; | ||
329 | } | ||
330 | |||
331 | /* ========================================================================= */ | ||
332 | int ZEXPORT deflateReset (strm) | ||
333 | z_streamp strm; | ||
334 | { | ||
335 | deflate_state *s; | ||
336 | |||
337 | if (strm == Z_NULL || strm->state == Z_NULL || | ||
338 | strm->zalloc == Z_NULL || strm->zfree == Z_NULL) return Z_STREAM_ERROR; | ||
339 | |||
340 | strm->total_in = strm->total_out = 0; | ||
341 | strm->msg = Z_NULL; /* use zfree if we ever allocate msg dynamically */ | ||
342 | strm->data_type = Z_UNKNOWN; | ||
343 | |||
344 | s = (deflate_state *)strm->state; | ||
345 | s->pending = 0; | ||
346 | s->pending_out = s->pending_buf; | ||
347 | |||
348 | if (s->noheader < 0) { | ||
349 | s->noheader = 0; /* was set to -1 by deflate(..., Z_FINISH); */ | ||
350 | } | ||
351 | s->status = s->noheader ? BUSY_STATE : INIT_STATE; | ||
352 | strm->adler = 1; | ||
353 | s->last_flush = Z_NO_FLUSH; | ||
354 | |||
355 | _tr_init(s); | ||
356 | lm_init(s); | ||
357 | |||
358 | return Z_OK; | ||
359 | } | ||
360 | |||
361 | /* ========================================================================= */ | ||
362 | int ZEXPORT deflateParams(strm, level, strategy) | ||
363 | z_streamp strm; | ||
364 | int level; | ||
365 | int strategy; | ||
366 | { | ||
367 | deflate_state *s; | ||
368 | compress_func func; | ||
369 | int err = Z_OK; | ||
370 | |||
371 | if (strm == Z_NULL || strm->state == Z_NULL) return Z_STREAM_ERROR; | ||
372 | s = strm->state; | ||
373 | |||
374 | if (level == Z_DEFAULT_COMPRESSION) { | ||
375 | level = 6; | ||
376 | } | ||
377 | if (level < 0 || level > 9 || strategy < 0 || strategy > Z_HUFFMAN_ONLY) { | ||
378 | return Z_STREAM_ERROR; | ||
379 | } | ||
380 | func = configuration_table[s->level].func; | ||
381 | |||
382 | if (func != configuration_table[level].func && strm->total_in != 0) { | ||
383 | /* Flush the last buffer: */ | ||
384 | err = deflate(strm, Z_PARTIAL_FLUSH); | ||
385 | } | ||
386 | if (s->level != level) { | ||
387 | s->level = level; | ||
388 | s->max_lazy_match = configuration_table[level].max_lazy; | ||
389 | s->good_match = configuration_table[level].good_length; | ||
390 | s->nice_match = configuration_table[level].nice_length; | ||
391 | s->max_chain_length = configuration_table[level].max_chain; | ||
392 | } | ||
393 | s->strategy = strategy; | ||
394 | return err; | ||
395 | } | ||
396 | |||
397 | /* ========================================================================= | ||
398 | * Put a short in the pending buffer. The 16-bit value is put in MSB order. | ||
399 | * IN assertion: the stream state is correct and there is enough room in | ||
400 | * pending_buf. | ||
401 | */ | ||
402 | local void putShortMSB (s, b) | ||
403 | deflate_state *s; | ||
404 | uInt b; | ||
405 | { | ||
406 | put_byte(s, (Byte)(b >> 8)); | ||
407 | put_byte(s, (Byte)(b & 0xff)); | ||
408 | } | ||
409 | |||
410 | /* ========================================================================= | ||
411 | * Flush as much pending output as possible. All deflate() output goes | ||
412 | * through this function so some applications may wish to modify it | ||
413 | * to avoid allocating a large strm->next_out buffer and copying into it. | ||
414 | * (See also read_buf()). | ||
415 | */ | ||
416 | local void flush_pending(strm) | ||
417 | z_streamp strm; | ||
418 | { | ||
419 | unsigned len = strm->state->pending; | ||
420 | |||
421 | if (len > strm->avail_out) len = strm->avail_out; | ||
422 | if (len == 0) return; | ||
423 | |||
424 | zmemcpy(strm->next_out, strm->state->pending_out, len); | ||
425 | strm->next_out += len; | ||
426 | strm->state->pending_out += len; | ||
427 | strm->total_out += len; | ||
428 | strm->avail_out -= len; | ||
429 | strm->state->pending -= len; | ||
430 | if (strm->state->pending == 0) { | ||
431 | strm->state->pending_out = strm->state->pending_buf; | ||
432 | } | ||
433 | } | ||
434 | |||
435 | /* ========================================================================= */ | ||
436 | int ZEXPORT deflate (strm, flush) | ||
437 | z_streamp strm; | ||
438 | int flush; | ||
439 | { | ||
440 | int old_flush; /* value of flush param for previous deflate call */ | ||
441 | deflate_state *s; | ||
442 | |||
443 | if (strm == Z_NULL || strm->state == Z_NULL || | ||
444 | flush > Z_FINISH || flush < 0) { | ||
445 | return Z_STREAM_ERROR; | ||
446 | } | ||
447 | s = strm->state; | ||
448 | |||
449 | if (strm->next_out == Z_NULL || | ||
450 | (strm->next_in == Z_NULL && strm->avail_in != 0) || | ||
451 | (s->status == FINISH_STATE && flush != Z_FINISH)) { | ||
452 | ERR_RETURN(strm, Z_STREAM_ERROR); | ||
453 | } | ||
454 | if (strm->avail_out == 0) ERR_RETURN(strm, Z_BUF_ERROR); | ||
455 | |||
456 | s->strm = strm; /* just in case */ | ||
457 | old_flush = s->last_flush; | ||
458 | s->last_flush = flush; | ||
459 | |||
460 | /* Write the zlib header */ | ||
461 | if (s->status == INIT_STATE) { | ||
462 | |||
463 | uInt header = (Z_DEFLATED + ((s->w_bits-8)<<4)) << 8; | ||
464 | uInt level_flags = (s->level-1) >> 1; | ||
465 | |||
466 | if (level_flags > 3) level_flags = 3; | ||
467 | header |= (level_flags << 6); | ||
468 | if (s->strstart != 0) header |= PRESET_DICT; | ||
469 | header += 31 - (header % 31); | ||
470 | |||
471 | s->status = BUSY_STATE; | ||
472 | putShortMSB(s, header); | ||
473 | |||
474 | /* Save the adler32 of the preset dictionary: */ | ||
475 | if (s->strstart != 0) { | ||
476 | putShortMSB(s, (uInt)(strm->adler >> 16)); | ||
477 | putShortMSB(s, (uInt)(strm->adler & 0xffff)); | ||
478 | } | ||
479 | strm->adler = 1L; | ||
480 | } | ||
481 | |||
482 | /* Flush as much pending output as possible */ | ||
483 | if (s->pending != 0) { | ||
484 | flush_pending(strm); | ||
485 | if (strm->avail_out == 0) { | ||
486 | /* Since avail_out is 0, deflate will be called again with | ||
487 | * more output space, but possibly with both pending and | ||
488 | * avail_in equal to zero. There won't be anything to do, | ||
489 | * but this is not an error situation so make sure we | ||
490 | * return OK instead of BUF_ERROR at next call of deflate: | ||
491 | */ | ||
492 | s->last_flush = -1; | ||
493 | return Z_OK; | ||
494 | } | ||
495 | |||
496 | /* Make sure there is something to do and avoid duplicate consecutive | ||
497 | * flushes. For repeated and useless calls with Z_FINISH, we keep | ||
498 | * returning Z_STREAM_END instead of Z_BUFF_ERROR. | ||
499 | */ | ||
500 | } else if (strm->avail_in == 0 && flush <= old_flush && | ||
501 | flush != Z_FINISH) { | ||
502 | ERR_RETURN(strm, Z_BUF_ERROR); | ||
503 | } | ||
504 | |||
505 | /* User must not provide more input after the first FINISH: */ | ||
506 | if (s->status == FINISH_STATE && strm->avail_in != 0) { | ||
507 | ERR_RETURN(strm, Z_BUF_ERROR); | ||
508 | } | ||
509 | |||
510 | /* Start a new block or continue the current one. | ||
511 | */ | ||
512 | if (strm->avail_in != 0 || s->lookahead != 0 || | ||
513 | (flush != Z_NO_FLUSH && s->status != FINISH_STATE)) { | ||
514 | block_state bstate; | ||
515 | |||
516 | bstate = (*(configuration_table[s->level].func))(s, flush); | ||
517 | |||
518 | if (bstate == finish_started || bstate == finish_done) { | ||
519 | s->status = FINISH_STATE; | ||
520 | } | ||
521 | if (bstate == need_more || bstate == finish_started) { | ||
522 | if (strm->avail_out == 0) { | ||
523 | s->last_flush = -1; /* avoid BUF_ERROR next call, see above */ | ||
524 | } | ||
525 | return Z_OK; | ||
526 | /* If flush != Z_NO_FLUSH && avail_out == 0, the next call | ||
527 | * of deflate should use the same flush parameter to make sure | ||
528 | * that the flush is complete. So we don't have to output an | ||
529 | * empty block here, this will be done at next call. This also | ||
530 | * ensures that for a very small output buffer, we emit at most | ||
531 | * one empty block. | ||
532 | */ | ||
533 | } | ||
534 | if (bstate == block_done) { | ||
535 | if (flush == Z_PARTIAL_FLUSH) { | ||
536 | _tr_align(s); | ||
537 | } else { /* FULL_FLUSH or SYNC_FLUSH */ | ||
538 | _tr_stored_block(s, (char*)0, 0L, 0); | ||
539 | /* For a full flush, this empty block will be recognized | ||
540 | * as a special marker by inflate_sync(). | ||
541 | */ | ||
542 | if (flush == Z_FULL_FLUSH) { | ||
543 | CLEAR_HASH(s); /* forget history */ | ||
544 | } | ||
545 | } | ||
546 | flush_pending(strm); | ||
547 | if (strm->avail_out == 0) { | ||
548 | s->last_flush = -1; /* avoid BUF_ERROR at next call, see above */ | ||
549 | return Z_OK; | ||
550 | } | ||
551 | } | ||
552 | } | ||
553 | Assert(strm->avail_out > 0, "bug2"); | ||
554 | |||
555 | if (flush != Z_FINISH) return Z_OK; | ||
556 | if (s->noheader) return Z_STREAM_END; | ||
557 | |||
558 | /* Write the zlib trailer (adler32) */ | ||
559 | putShortMSB(s, (uInt)(strm->adler >> 16)); | ||
560 | putShortMSB(s, (uInt)(strm->adler & 0xffff)); | ||
561 | flush_pending(strm); | ||
562 | /* If avail_out is zero, the application will call deflate again | ||
563 | * to flush the rest. | ||
564 | */ | ||
565 | s->noheader = -1; /* write the trailer only once! */ | ||
566 | return s->pending != 0 ? Z_OK : Z_STREAM_END; | ||
567 | } | ||
568 | |||
569 | /* ========================================================================= */ | ||
570 | int ZEXPORT deflateEnd (strm) | ||
571 | z_streamp strm; | ||
572 | { | ||
573 | int status; | ||
574 | |||
575 | if (strm == Z_NULL || strm->state == Z_NULL) return Z_STREAM_ERROR; | ||
576 | |||
577 | status = strm->state->status; | ||
578 | if (status != INIT_STATE && status != BUSY_STATE && | ||
579 | status != FINISH_STATE) { | ||
580 | return Z_STREAM_ERROR; | ||
581 | } | ||
582 | |||
583 | /* Deallocate in reverse order of allocations: */ | ||
584 | TRY_FREE(strm, strm->state->pending_buf); | ||
585 | TRY_FREE(strm, strm->state->head); | ||
586 | TRY_FREE(strm, strm->state->prev); | ||
587 | TRY_FREE(strm, strm->state->window); | ||
588 | |||
589 | ZFREE(strm, strm->state); | ||
590 | strm->state = Z_NULL; | ||
591 | |||
592 | return status == BUSY_STATE ? Z_DATA_ERROR : Z_OK; | ||
593 | } | ||
594 | |||
595 | /* ========================================================================= | ||
596 | * Copy the source state to the destination state. | ||
597 | * To simplify the source, this is not supported for 16-bit MSDOS (which | ||
598 | * doesn't have enough memory anyway to duplicate compression states). | ||
599 | */ | ||
600 | int ZEXPORT deflateCopy (dest, source) | ||
601 | z_streamp dest; | ||
602 | z_streamp source; | ||
603 | { | ||
604 | #ifdef MAXSEG_64K | ||
605 | return Z_STREAM_ERROR; | ||
606 | #else | ||
607 | deflate_state *ds; | ||
608 | deflate_state *ss; | ||
609 | ushf *overlay; | ||
610 | |||
611 | |||
612 | if (source == Z_NULL || dest == Z_NULL || source->state == Z_NULL) { | ||
613 | return Z_STREAM_ERROR; | ||
614 | } | ||
615 | |||
616 | ss = source->state; | ||
617 | |||
618 | *dest = *source; | ||
619 | |||
620 | ds = (deflate_state *) ZALLOC(dest, 1, sizeof(deflate_state)); | ||
621 | if (ds == Z_NULL) return Z_MEM_ERROR; | ||
622 | dest->state = (struct internal_state FAR *) ds; | ||
623 | *ds = *ss; | ||
624 | ds->strm = dest; | ||
625 | |||
626 | ds->window = (Bytef *) ZALLOC(dest, ds->w_size, 2*sizeof(Byte)); | ||
627 | ds->prev = (Posf *) ZALLOC(dest, ds->w_size, sizeof(Pos)); | ||
628 | ds->head = (Posf *) ZALLOC(dest, ds->hash_size, sizeof(Pos)); | ||
629 | overlay = (ushf *) ZALLOC(dest, ds->lit_bufsize, sizeof(ush)+2); | ||
630 | ds->pending_buf = (uchf *) overlay; | ||
631 | |||
632 | if (ds->window == Z_NULL || ds->prev == Z_NULL || ds->head == Z_NULL || | ||
633 | ds->pending_buf == Z_NULL) { | ||
634 | deflateEnd (dest); | ||
635 | return Z_MEM_ERROR; | ||
636 | } | ||
637 | /* following zmemcpy do not work for 16-bit MSDOS */ | ||
638 | zmemcpy(ds->window, ss->window, ds->w_size * 2 * sizeof(Byte)); | ||
639 | zmemcpy(ds->prev, ss->prev, ds->w_size * sizeof(Pos)); | ||
640 | zmemcpy(ds->head, ss->head, ds->hash_size * sizeof(Pos)); | ||
641 | zmemcpy(ds->pending_buf, ss->pending_buf, (uInt)ds->pending_buf_size); | ||
642 | |||
643 | ds->pending_out = ds->pending_buf + (ss->pending_out - ss->pending_buf); | ||
644 | ds->d_buf = overlay + ds->lit_bufsize/sizeof(ush); | ||
645 | ds->l_buf = ds->pending_buf + (1+sizeof(ush))*ds->lit_bufsize; | ||
646 | |||
647 | ds->l_desc.dyn_tree = ds->dyn_ltree; | ||
648 | ds->d_desc.dyn_tree = ds->dyn_dtree; | ||
649 | ds->bl_desc.dyn_tree = ds->bl_tree; | ||
650 | |||
651 | return Z_OK; | ||
652 | #endif | ||
653 | } | ||
654 | |||
655 | /* =========================================================================== | ||
656 | * Read a new buffer from the current input stream, update the adler32 | ||
657 | * and total number of bytes read. All deflate() input goes through | ||
658 | * this function so some applications may wish to modify it to avoid | ||
659 | * allocating a large strm->next_in buffer and copying from it. | ||
660 | * (See also flush_pending()). | ||
661 | */ | ||
662 | local int read_buf(strm, buf, size) | ||
663 | z_streamp strm; | ||
664 | Bytef *buf; | ||
665 | unsigned size; | ||
666 | { | ||
667 | unsigned len = strm->avail_in; | ||
668 | |||
669 | if (len > size) len = size; | ||
670 | if (len == 0) return 0; | ||
671 | |||
672 | strm->avail_in -= len; | ||
673 | |||
674 | if (!strm->state->noheader) { | ||
675 | strm->adler = adler32(strm->adler, strm->next_in, len); | ||
676 | } | ||
677 | zmemcpy(buf, strm->next_in, len); | ||
678 | strm->next_in += len; | ||
679 | strm->total_in += len; | ||
680 | |||
681 | return (int)len; | ||
682 | } | ||
683 | |||
684 | /* =========================================================================== | ||
685 | * Initialize the "longest match" routines for a new zlib stream | ||
686 | */ | ||
687 | local void lm_init (s) | ||
688 | deflate_state *s; | ||
689 | { | ||
690 | s->window_size = (ulg)2L*s->w_size; | ||
691 | |||
692 | CLEAR_HASH(s); | ||
693 | |||
694 | /* Set the default configuration parameters: | ||
695 | */ | ||
696 | s->max_lazy_match = configuration_table[s->level].max_lazy; | ||
697 | s->good_match = configuration_table[s->level].good_length; | ||
698 | s->nice_match = configuration_table[s->level].nice_length; | ||
699 | s->max_chain_length = configuration_table[s->level].max_chain; | ||
700 | |||
701 | s->strstart = 0; | ||
702 | s->block_start = 0L; | ||
703 | s->lookahead = 0; | ||
704 | s->match_length = s->prev_length = MIN_MATCH-1; | ||
705 | s->match_available = 0; | ||
706 | s->ins_h = 0; | ||
707 | #ifdef ASMV | ||
708 | match_init(); /* initialize the asm code */ | ||
709 | #endif | ||
710 | } | ||
711 | |||
712 | /* =========================================================================== | ||
713 | * Set match_start to the longest match starting at the given string and | ||
714 | * return its length. Matches shorter or equal to prev_length are discarded, | ||
715 | * in which case the result is equal to prev_length and match_start is | ||
716 | * garbage. | ||
717 | * IN assertions: cur_match is the head of the hash chain for the current | ||
718 | * string (strstart) and its distance is <= MAX_DIST, and prev_length >= 1 | ||
719 | * OUT assertion: the match length is not greater than s->lookahead. | ||
720 | */ | ||
721 | #ifndef ASMV | ||
722 | /* For 80x86 and 680x0, an optimized version will be provided in match.asm or | ||
723 | * match.S. The code will be functionally equivalent. | ||
724 | */ | ||
725 | #ifndef FASTEST | ||
726 | local uInt longest_match(s, cur_match) | ||
727 | deflate_state *s; | ||
728 | IPos cur_match; /* current match */ | ||
729 | { | ||
730 | unsigned chain_length = s->max_chain_length;/* max hash chain length */ | ||
731 | register Bytef *scan = s->window + s->strstart; /* current string */ | ||
732 | register Bytef *match; /* matched string */ | ||
733 | register int len; /* length of current match */ | ||
734 | int best_len = s->prev_length; /* best match length so far */ | ||
735 | int nice_match = s->nice_match; /* stop if match long enough */ | ||
736 | IPos limit = s->strstart > (IPos)MAX_DIST(s) ? | ||
737 | s->strstart - (IPos)MAX_DIST(s) : NIL; | ||
738 | /* Stop when cur_match becomes <= limit. To simplify the code, | ||
739 | * we prevent matches with the string of window index 0. | ||
740 | */ | ||
741 | Posf *prev = s->prev; | ||
742 | uInt wmask = s->w_mask; | ||
743 | |||
744 | #ifdef UNALIGNED_OK | ||
745 | /* Compare two bytes at a time. Note: this is not always beneficial. | ||
746 | * Try with and without -DUNALIGNED_OK to check. | ||
747 | */ | ||
748 | register Bytef *strend = s->window + s->strstart + MAX_MATCH - 1; | ||
749 | register ush scan_start = *(ushf*)scan; | ||
750 | register ush scan_end = *(ushf*)(scan+best_len-1); | ||
751 | #else | ||
752 | register Bytef *strend = s->window + s->strstart + MAX_MATCH; | ||
753 | register Byte scan_end1 = scan[best_len-1]; | ||
754 | register Byte scan_end = scan[best_len]; | ||
755 | #endif | ||
756 | |||
757 | /* The code is optimized for HASH_BITS >= 8 and MAX_MATCH-2 multiple of 16. | ||
758 | * It is easy to get rid of this optimization if necessary. | ||
759 | */ | ||
760 | Assert(s->hash_bits >= 8 && MAX_MATCH == 258, "Code too clever"); | ||
761 | |||
762 | /* Do not waste too much time if we already have a good match: */ | ||
763 | if (s->prev_length >= s->good_match) { | ||
764 | chain_length >>= 2; | ||
765 | } | ||
766 | /* Do not look for matches beyond the end of the input. This is necessary | ||
767 | * to make deflate deterministic. | ||
768 | */ | ||
769 | if ((uInt)nice_match > s->lookahead) nice_match = s->lookahead; | ||
770 | |||
771 | Assert((ulg)s->strstart <= s->window_size-MIN_LOOKAHEAD, "need lookahead"); | ||
772 | |||
773 | do { | ||
774 | Assert(cur_match < s->strstart, "no future"); | ||
775 | match = s->window + cur_match; | ||
776 | |||
777 | /* Skip to next match if the match length cannot increase | ||
778 | * or if the match length is less than 2: | ||
779 | */ | ||
780 | #if (defined(UNALIGNED_OK) && MAX_MATCH == 258) | ||
781 | /* This code assumes sizeof(unsigned short) == 2. Do not use | ||
782 | * UNALIGNED_OK if your compiler uses a different size. | ||
783 | */ | ||
784 | if (*(ushf*)(match+best_len-1) != scan_end || | ||
785 | *(ushf*)match != scan_start) continue; | ||
786 | |||
787 | /* It is not necessary to compare scan[2] and match[2] since they are | ||
788 | * always equal when the other bytes match, given that the hash keys | ||
789 | * are equal and that HASH_BITS >= 8. Compare 2 bytes at a time at | ||
790 | * strstart+3, +5, ... up to strstart+257. We check for insufficient | ||
791 | * lookahead only every 4th comparison; the 128th check will be made | ||
792 | * at strstart+257. If MAX_MATCH-2 is not a multiple of 8, it is | ||
793 | * necessary to put more guard bytes at the end of the window, or | ||
794 | * to check more often for insufficient lookahead. | ||
795 | */ | ||
796 | Assert(scan[2] == match[2], "scan[2]?"); | ||
797 | scan++, match++; | ||
798 | do { | ||
799 | } while (*(ushf*)(scan+=2) == *(ushf*)(match+=2) && | ||
800 | *(ushf*)(scan+=2) == *(ushf*)(match+=2) && | ||
801 | *(ushf*)(scan+=2) == *(ushf*)(match+=2) && | ||
802 | *(ushf*)(scan+=2) == *(ushf*)(match+=2) && | ||
803 | scan < strend); | ||
804 | /* The funny "do {}" generates better code on most compilers */ | ||
805 | |||
806 | /* Here, scan <= window+strstart+257 */ | ||
807 | Assert(scan <= s->window+(unsigned)(s->window_size-1), "wild scan"); | ||
808 | if (*scan == *match) scan++; | ||
809 | |||
810 | len = (MAX_MATCH - 1) - (int)(strend-scan); | ||
811 | scan = strend - (MAX_MATCH-1); | ||
812 | |||
813 | #else /* UNALIGNED_OK */ | ||
814 | |||
815 | if (match[best_len] != scan_end || | ||
816 | match[best_len-1] != scan_end1 || | ||
817 | *match != *scan || | ||
818 | *++match != scan[1]) continue; | ||
819 | |||
820 | /* The check at best_len-1 can be removed because it will be made | ||
821 | * again later. (This heuristic is not always a win.) | ||
822 | * It is not necessary to compare scan[2] and match[2] since they | ||
823 | * are always equal when the other bytes match, given that | ||
824 | * the hash keys are equal and that HASH_BITS >= 8. | ||
825 | */ | ||
826 | scan += 2, match++; | ||
827 | Assert(*scan == *match, "match[2]?"); | ||
828 | |||
829 | /* We check for insufficient lookahead only every 8th comparison; | ||
830 | * the 256th check will be made at strstart+258. | ||
831 | */ | ||
832 | do { | ||
833 | } while (*++scan == *++match && *++scan == *++match && | ||
834 | *++scan == *++match && *++scan == *++match && | ||
835 | *++scan == *++match && *++scan == *++match && | ||
836 | *++scan == *++match && *++scan == *++match && | ||
837 | scan < strend); | ||
838 | |||
839 | Assert(scan <= s->window+(unsigned)(s->window_size-1), "wild scan"); | ||
840 | |||
841 | len = MAX_MATCH - (int)(strend - scan); | ||
842 | scan = strend - MAX_MATCH; | ||
843 | |||
844 | #endif /* UNALIGNED_OK */ | ||
845 | |||
846 | if (len > best_len) { | ||
847 | s->match_start = cur_match; | ||
848 | best_len = len; | ||
849 | if (len >= nice_match) break; | ||
850 | #ifdef UNALIGNED_OK | ||
851 | scan_end = *(ushf*)(scan+best_len-1); | ||
852 | #else | ||
853 | scan_end1 = scan[best_len-1]; | ||
854 | scan_end = scan[best_len]; | ||
855 | #endif | ||
856 | } | ||
857 | } while ((cur_match = prev[cur_match & wmask]) > limit | ||
858 | && --chain_length != 0); | ||
859 | |||
860 | if ((uInt)best_len <= s->lookahead) return (uInt)best_len; | ||
861 | return s->lookahead; | ||
862 | } | ||
863 | |||
864 | #else /* FASTEST */ | ||
865 | /* --------------------------------------------------------------------------- | ||
866 | * Optimized version for level == 1 only | ||
867 | */ | ||
868 | local uInt longest_match(s, cur_match) | ||
869 | deflate_state *s; | ||
870 | IPos cur_match; /* current match */ | ||
871 | { | ||
872 | register Bytef *scan = s->window + s->strstart; /* current string */ | ||
873 | register Bytef *match; /* matched string */ | ||
874 | register int len; /* length of current match */ | ||
875 | register Bytef *strend = s->window + s->strstart + MAX_MATCH; | ||
876 | |||
877 | /* The code is optimized for HASH_BITS >= 8 and MAX_MATCH-2 multiple of 16. | ||
878 | * It is easy to get rid of this optimization if necessary. | ||
879 | */ | ||
880 | Assert(s->hash_bits >= 8 && MAX_MATCH == 258, "Code too clever"); | ||
881 | |||
882 | Assert((ulg)s->strstart <= s->window_size-MIN_LOOKAHEAD, "need lookahead"); | ||
883 | |||
884 | Assert(cur_match < s->strstart, "no future"); | ||
885 | |||
886 | match = s->window + cur_match; | ||
887 | |||
888 | /* Return failure if the match length is less than 2: | ||
889 | */ | ||
890 | if (match[0] != scan[0] || match[1] != scan[1]) return MIN_MATCH-1; | ||
891 | |||
892 | /* The check at best_len-1 can be removed because it will be made | ||
893 | * again later. (This heuristic is not always a win.) | ||
894 | * It is not necessary to compare scan[2] and match[2] since they | ||
895 | * are always equal when the other bytes match, given that | ||
896 | * the hash keys are equal and that HASH_BITS >= 8. | ||
897 | */ | ||
898 | scan += 2, match += 2; | ||
899 | Assert(*scan == *match, "match[2]?"); | ||
900 | |||
901 | /* We check for insufficient lookahead only every 8th comparison; | ||
902 | * the 256th check will be made at strstart+258. | ||
903 | */ | ||
904 | do { | ||
905 | } while (*++scan == *++match && *++scan == *++match && | ||
906 | *++scan == *++match && *++scan == *++match && | ||
907 | *++scan == *++match && *++scan == *++match && | ||
908 | *++scan == *++match && *++scan == *++match && | ||
909 | scan < strend); | ||
910 | |||
911 | Assert(scan <= s->window+(unsigned)(s->window_size-1), "wild scan"); | ||
912 | |||
913 | len = MAX_MATCH - (int)(strend - scan); | ||
914 | |||
915 | if (len < MIN_MATCH) return MIN_MATCH - 1; | ||
916 | |||
917 | s->match_start = cur_match; | ||
918 | return len <= s->lookahead ? len : s->lookahead; | ||
919 | } | ||
920 | #endif /* FASTEST */ | ||
921 | #endif /* ASMV */ | ||
922 | |||
923 | #ifdef DEBUG | ||
924 | /* =========================================================================== | ||
925 | * Check that the match at match_start is indeed a match. | ||
926 | */ | ||
927 | local void check_match(s, start, match, length) | ||
928 | deflate_state *s; | ||
929 | IPos start, match; | ||
930 | int length; | ||
931 | { | ||
932 | /* check that the match is indeed a match */ | ||
933 | if (zmemcmp(s->window + match, | ||
934 | s->window + start, length) != EQUAL) { | ||
935 | fprintf(stderr, " start %u, match %u, length %d\n", | ||
936 | start, match, length); | ||
937 | do { | ||
938 | fprintf(stderr, "%c%c", s->window[match++], s->window[start++]); | ||
939 | } while (--length != 0); | ||
940 | z_error("invalid match"); | ||
941 | } | ||
942 | if (z_verbose > 1) { | ||
943 | fprintf(stderr,"\\[%d,%d]", start-match, length); | ||
944 | do { putc(s->window[start++], stderr); } while (--length != 0); | ||
945 | } | ||
946 | } | ||
947 | #else | ||
948 | # define check_match(s, start, match, length) | ||
949 | #endif | ||
950 | |||
951 | /* =========================================================================== | ||
952 | * Fill the window when the lookahead becomes insufficient. | ||
953 | * Updates strstart and lookahead. | ||
954 | * | ||
955 | * IN assertion: lookahead < MIN_LOOKAHEAD | ||
956 | * OUT assertions: strstart <= window_size-MIN_LOOKAHEAD | ||
957 | * At least one byte has been read, or avail_in == 0; reads are | ||
958 | * performed for at least two bytes (required for the zip translate_eol | ||
959 | * option -- not supported here). | ||
960 | */ | ||
961 | local void fill_window(s) | ||
962 | deflate_state *s; | ||
963 | { | ||
964 | register unsigned n, m; | ||
965 | register Posf *p; | ||
966 | unsigned more; /* Amount of free space at the end of the window. */ | ||
967 | uInt wsize = s->w_size; | ||
968 | |||
969 | do { | ||
970 | more = (unsigned)(s->window_size -(ulg)s->lookahead -(ulg)s->strstart); | ||
971 | |||
972 | /* Deal with !@#$% 64K limit: */ | ||
973 | if (more == 0 && s->strstart == 0 && s->lookahead == 0) { | ||
974 | more = wsize; | ||
975 | |||
976 | } else if (more == (unsigned)(-1)) { | ||
977 | /* Very unlikely, but possible on 16 bit machine if strstart == 0 | ||
978 | * and lookahead == 1 (input done one byte at time) | ||
979 | */ | ||
980 | more--; | ||
981 | |||
982 | /* If the window is almost full and there is insufficient lookahead, | ||
983 | * move the upper half to the lower one to make room in the upper half. | ||
984 | */ | ||
985 | } else if (s->strstart >= wsize+MAX_DIST(s)) { | ||
986 | |||
987 | zmemcpy(s->window, s->window+wsize, (unsigned)wsize); | ||
988 | s->match_start -= wsize; | ||
989 | s->strstart -= wsize; /* we now have strstart >= MAX_DIST */ | ||
990 | s->block_start -= (long) wsize; | ||
991 | |||
992 | /* Slide the hash table (could be avoided with 32 bit values | ||
993 | at the expense of memory usage). We slide even when level == 0 | ||
994 | to keep the hash table consistent if we switch back to level > 0 | ||
995 | later. (Using level 0 permanently is not an optimal usage of | ||
996 | zlib, so we don't care about this pathological case.) | ||
997 | */ | ||
998 | n = s->hash_size; | ||
999 | p = &s->head[n]; | ||
1000 | do { | ||
1001 | m = *--p; | ||
1002 | *p = (Pos)(m >= wsize ? m-wsize : NIL); | ||
1003 | } while (--n); | ||
1004 | |||
1005 | n = wsize; | ||
1006 | #ifndef FASTEST | ||
1007 | p = &s->prev[n]; | ||
1008 | do { | ||
1009 | m = *--p; | ||
1010 | *p = (Pos)(m >= wsize ? m-wsize : NIL); | ||
1011 | /* If n is not on any hash chain, prev[n] is garbage but | ||
1012 | * its value will never be used. | ||
1013 | */ | ||
1014 | } while (--n); | ||
1015 | #endif | ||
1016 | more += wsize; | ||
1017 | } | ||
1018 | if (s->strm->avail_in == 0) return; | ||
1019 | |||
1020 | /* If there was no sliding: | ||
1021 | * strstart <= WSIZE+MAX_DIST-1 && lookahead <= MIN_LOOKAHEAD - 1 && | ||
1022 | * more == window_size - lookahead - strstart | ||
1023 | * => more >= window_size - (MIN_LOOKAHEAD-1 + WSIZE + MAX_DIST-1) | ||
1024 | * => more >= window_size - 2*WSIZE + 2 | ||
1025 | * In the BIG_MEM or MMAP case (not yet supported), | ||
1026 | * window_size == input_size + MIN_LOOKAHEAD && | ||
1027 | * strstart + s->lookahead <= input_size => more >= MIN_LOOKAHEAD. | ||
1028 | * Otherwise, window_size == 2*WSIZE so more >= 2. | ||
1029 | * If there was sliding, more >= WSIZE. So in all cases, more >= 2. | ||
1030 | */ | ||
1031 | Assert(more >= 2, "more < 2"); | ||
1032 | |||
1033 | n = read_buf(s->strm, s->window + s->strstart + s->lookahead, more); | ||
1034 | s->lookahead += n; | ||
1035 | |||
1036 | /* Initialize the hash value now that we have some input: */ | ||
1037 | if (s->lookahead >= MIN_MATCH) { | ||
1038 | s->ins_h = s->window[s->strstart]; | ||
1039 | UPDATE_HASH(s, s->ins_h, s->window[s->strstart+1]); | ||
1040 | #if MIN_MATCH != 3 | ||
1041 | Call UPDATE_HASH() MIN_MATCH-3 more times | ||
1042 | #endif | ||
1043 | } | ||
1044 | /* If the whole input has less than MIN_MATCH bytes, ins_h is garbage, | ||
1045 | * but this is not important since only literal bytes will be emitted. | ||
1046 | */ | ||
1047 | |||
1048 | } while (s->lookahead < MIN_LOOKAHEAD && s->strm->avail_in != 0); | ||
1049 | } | ||
1050 | |||
1051 | /* =========================================================================== | ||
1052 | * Flush the current block, with given end-of-file flag. | ||
1053 | * IN assertion: strstart is set to the end of the current match. | ||
1054 | */ | ||
1055 | #define FLUSH_BLOCK_ONLY(s, eof) { \ | ||
1056 | _tr_flush_block(s, (s->block_start >= 0L ? \ | ||
1057 | (charf *)&s->window[(unsigned)s->block_start] : \ | ||
1058 | (charf *)Z_NULL), \ | ||
1059 | (ulg)((long)s->strstart - s->block_start), \ | ||
1060 | (eof)); \ | ||
1061 | s->block_start = s->strstart; \ | ||
1062 | flush_pending(s->strm); \ | ||
1063 | Tracev((stderr,"[FLUSH]")); \ | ||
1064 | } | ||
1065 | |||
1066 | /* Same but force premature exit if necessary. */ | ||
1067 | #define FLUSH_BLOCK(s, eof) { \ | ||
1068 | FLUSH_BLOCK_ONLY(s, eof); \ | ||
1069 | if (s->strm->avail_out == 0) return (eof) ? finish_started : need_more; \ | ||
1070 | } | ||
1071 | |||
1072 | /* =========================================================================== | ||
1073 | * Copy without compression as much as possible from the input stream, return | ||
1074 | * the current block state. | ||
1075 | * This function does not insert new strings in the dictionary since | ||
1076 | * uncompressible data is probably not useful. This function is used | ||
1077 | * only for the level=0 compression option. | ||
1078 | * NOTE: this function should be optimized to avoid extra copying from | ||
1079 | * window to pending_buf. | ||
1080 | */ | ||
1081 | local block_state deflate_stored(s, flush) | ||
1082 | deflate_state *s; | ||
1083 | int flush; | ||
1084 | { | ||
1085 | /* Stored blocks are limited to 0xffff bytes, pending_buf is limited | ||
1086 | * to pending_buf_size, and each stored block has a 5 byte header: | ||
1087 | */ | ||
1088 | ulg max_block_size = 0xffff; | ||
1089 | ulg max_start; | ||
1090 | |||
1091 | if (max_block_size > s->pending_buf_size - 5) { | ||
1092 | max_block_size = s->pending_buf_size - 5; | ||
1093 | } | ||
1094 | |||
1095 | /* Copy as much as possible from input to output: */ | ||
1096 | for (;;) { | ||
1097 | /* Fill the window as much as possible: */ | ||
1098 | if (s->lookahead <= 1) { | ||
1099 | |||
1100 | Assert(s->strstart < s->w_size+MAX_DIST(s) || | ||
1101 | s->block_start >= (long)s->w_size, "slide too late"); | ||
1102 | |||
1103 | fill_window(s); | ||
1104 | if (s->lookahead == 0 && flush == Z_NO_FLUSH) return need_more; | ||
1105 | |||
1106 | if (s->lookahead == 0) break; /* flush the current block */ | ||
1107 | } | ||
1108 | Assert(s->block_start >= 0L, "block gone"); | ||
1109 | |||
1110 | s->strstart += s->lookahead; | ||
1111 | s->lookahead = 0; | ||
1112 | |||
1113 | /* Emit a stored block if pending_buf will be full: */ | ||
1114 | max_start = s->block_start + max_block_size; | ||
1115 | if (s->strstart == 0 || (ulg)s->strstart >= max_start) { | ||
1116 | /* strstart == 0 is possible when wraparound on 16-bit machine */ | ||
1117 | s->lookahead = (uInt)(s->strstart - max_start); | ||
1118 | s->strstart = (uInt)max_start; | ||
1119 | FLUSH_BLOCK(s, 0); | ||
1120 | } | ||
1121 | /* Flush if we may have to slide, otherwise block_start may become | ||
1122 | * negative and the data will be gone: | ||
1123 | */ | ||
1124 | if (s->strstart - (uInt)s->block_start >= MAX_DIST(s)) { | ||
1125 | FLUSH_BLOCK(s, 0); | ||
1126 | } | ||
1127 | } | ||
1128 | FLUSH_BLOCK(s, flush == Z_FINISH); | ||
1129 | return flush == Z_FINISH ? finish_done : block_done; | ||
1130 | } | ||
1131 | |||
1132 | /* =========================================================================== | ||
1133 | * Compress as much as possible from the input stream, return the current | ||
1134 | * block state. | ||
1135 | * This function does not perform lazy evaluation of matches and inserts | ||
1136 | * new strings in the dictionary only for unmatched strings or for short | ||
1137 | * matches. It is used only for the fast compression options. | ||
1138 | */ | ||
1139 | local block_state deflate_fast(s, flush) | ||
1140 | deflate_state *s; | ||
1141 | int flush; | ||
1142 | { | ||
1143 | IPos hash_head = NIL; /* head of the hash chain */ | ||
1144 | int bflush; /* set if current block must be flushed */ | ||
1145 | |||
1146 | for (;;) { | ||
1147 | /* Make sure that we always have enough lookahead, except | ||
1148 | * at the end of the input file. We need MAX_MATCH bytes | ||
1149 | * for the next match, plus MIN_MATCH bytes to insert the | ||
1150 | * string following the next match. | ||
1151 | */ | ||
1152 | if (s->lookahead < MIN_LOOKAHEAD) { | ||
1153 | fill_window(s); | ||
1154 | if (s->lookahead < MIN_LOOKAHEAD && flush == Z_NO_FLUSH) { | ||
1155 | return need_more; | ||
1156 | } | ||
1157 | if (s->lookahead == 0) break; /* flush the current block */ | ||
1158 | } | ||
1159 | |||
1160 | /* Insert the string window[strstart .. strstart+2] in the | ||
1161 | * dictionary, and set hash_head to the head of the hash chain: | ||
1162 | */ | ||
1163 | if (s->lookahead >= MIN_MATCH) { | ||
1164 | INSERT_STRING(s, s->strstart, hash_head); | ||
1165 | } | ||
1166 | |||
1167 | /* Find the longest match, discarding those <= prev_length. | ||
1168 | * At this point we have always match_length < MIN_MATCH | ||
1169 | */ | ||
1170 | if (hash_head != NIL && s->strstart - hash_head <= MAX_DIST(s)) { | ||
1171 | /* To simplify the code, we prevent matches with the string | ||
1172 | * of window index 0 (in particular we have to avoid a match | ||
1173 | * of the string with itself at the start of the input file). | ||
1174 | */ | ||
1175 | if (s->strategy != Z_HUFFMAN_ONLY) { | ||
1176 | s->match_length = longest_match (s, hash_head); | ||
1177 | } | ||
1178 | /* longest_match() sets match_start */ | ||
1179 | } | ||
1180 | if (s->match_length >= MIN_MATCH) { | ||
1181 | check_match(s, s->strstart, s->match_start, s->match_length); | ||
1182 | |||
1183 | _tr_tally_dist(s, s->strstart - s->match_start, | ||
1184 | s->match_length - MIN_MATCH, bflush); | ||
1185 | |||
1186 | s->lookahead -= s->match_length; | ||
1187 | |||
1188 | /* Insert new strings in the hash table only if the match length | ||
1189 | * is not too large. This saves time but degrades compression. | ||
1190 | */ | ||
1191 | #ifndef FASTEST | ||
1192 | if (s->match_length <= s->max_insert_length && | ||
1193 | s->lookahead >= MIN_MATCH) { | ||
1194 | s->match_length--; /* string at strstart already in hash table */ | ||
1195 | do { | ||
1196 | s->strstart++; | ||
1197 | INSERT_STRING(s, s->strstart, hash_head); | ||
1198 | /* strstart never exceeds WSIZE-MAX_MATCH, so there are | ||
1199 | * always MIN_MATCH bytes ahead. | ||
1200 | */ | ||
1201 | } while (--s->match_length != 0); | ||
1202 | s->strstart++; | ||
1203 | } else | ||
1204 | #endif | ||
1205 | { | ||
1206 | s->strstart += s->match_length; | ||
1207 | s->match_length = 0; | ||
1208 | s->ins_h = s->window[s->strstart]; | ||
1209 | UPDATE_HASH(s, s->ins_h, s->window[s->strstart+1]); | ||
1210 | #if MIN_MATCH != 3 | ||
1211 | Call UPDATE_HASH() MIN_MATCH-3 more times | ||
1212 | #endif | ||
1213 | /* If lookahead < MIN_MATCH, ins_h is garbage, but it does not | ||
1214 | * matter since it will be recomputed at next deflate call. | ||
1215 | */ | ||
1216 | } | ||
1217 | } else { | ||
1218 | /* No match, output a literal byte */ | ||
1219 | Tracevv((stderr,"%c", s->window[s->strstart])); | ||
1220 | _tr_tally_lit (s, s->window[s->strstart], bflush); | ||
1221 | s->lookahead--; | ||
1222 | s->strstart++; | ||
1223 | } | ||
1224 | if (bflush) FLUSH_BLOCK(s, 0); | ||
1225 | } | ||
1226 | FLUSH_BLOCK(s, flush == Z_FINISH); | ||
1227 | return flush == Z_FINISH ? finish_done : block_done; | ||
1228 | } | ||
1229 | |||
1230 | /* =========================================================================== | ||
1231 | * Same as above, but achieves better compression. We use a lazy | ||
1232 | * evaluation for matches: a match is finally adopted only if there is | ||
1233 | * no better match at the next window position. | ||
1234 | */ | ||
1235 | local block_state deflate_slow(s, flush) | ||
1236 | deflate_state *s; | ||
1237 | int flush; | ||
1238 | { | ||
1239 | IPos hash_head = NIL; /* head of hash chain */ | ||
1240 | int bflush; /* set if current block must be flushed */ | ||
1241 | |||
1242 | /* Process the input block. */ | ||
1243 | for (;;) { | ||
1244 | /* Make sure that we always have enough lookahead, except | ||
1245 | * at the end of the input file. We need MAX_MATCH bytes | ||
1246 | * for the next match, plus MIN_MATCH bytes to insert the | ||
1247 | * string following the next match. | ||
1248 | */ | ||
1249 | if (s->lookahead < MIN_LOOKAHEAD) { | ||
1250 | fill_window(s); | ||
1251 | if (s->lookahead < MIN_LOOKAHEAD && flush == Z_NO_FLUSH) { | ||
1252 | return need_more; | ||
1253 | } | ||
1254 | if (s->lookahead == 0) break; /* flush the current block */ | ||
1255 | } | ||
1256 | |||
1257 | /* Insert the string window[strstart .. strstart+2] in the | ||
1258 | * dictionary, and set hash_head to the head of the hash chain: | ||
1259 | */ | ||
1260 | if (s->lookahead >= MIN_MATCH) { | ||
1261 | INSERT_STRING(s, s->strstart, hash_head); | ||
1262 | } | ||
1263 | |||
1264 | /* Find the longest match, discarding those <= prev_length. | ||
1265 | */ | ||
1266 | s->prev_length = s->match_length, s->prev_match = s->match_start; | ||
1267 | s->match_length = MIN_MATCH-1; | ||
1268 | |||
1269 | if (hash_head != NIL && s->prev_length < s->max_lazy_match && | ||
1270 | s->strstart - hash_head <= MAX_DIST(s)) { | ||
1271 | /* To simplify the code, we prevent matches with the string | ||
1272 | * of window index 0 (in particular we have to avoid a match | ||
1273 | * of the string with itself at the start of the input file). | ||
1274 | */ | ||
1275 | if (s->strategy != Z_HUFFMAN_ONLY) { | ||
1276 | s->match_length = longest_match (s, hash_head); | ||
1277 | } | ||
1278 | /* longest_match() sets match_start */ | ||
1279 | |||
1280 | if (s->match_length <= 5 && (s->strategy == Z_FILTERED || | ||
1281 | (s->match_length == MIN_MATCH && | ||
1282 | s->strstart - s->match_start > TOO_FAR))) { | ||
1283 | |||
1284 | /* If prev_match is also MIN_MATCH, match_start is garbage | ||
1285 | * but we will ignore the current match anyway. | ||
1286 | */ | ||
1287 | s->match_length = MIN_MATCH-1; | ||
1288 | } | ||
1289 | } | ||
1290 | /* If there was a match at the previous step and the current | ||
1291 | * match is not better, output the previous match: | ||
1292 | */ | ||
1293 | if (s->prev_length >= MIN_MATCH && s->match_length <= s->prev_length) { | ||
1294 | uInt max_insert = s->strstart + s->lookahead - MIN_MATCH; | ||
1295 | /* Do not insert strings in hash table beyond this. */ | ||
1296 | |||
1297 | check_match(s, s->strstart-1, s->prev_match, s->prev_length); | ||
1298 | |||
1299 | _tr_tally_dist(s, s->strstart -1 - s->prev_match, | ||
1300 | s->prev_length - MIN_MATCH, bflush); | ||
1301 | |||
1302 | /* Insert in hash table all strings up to the end of the match. | ||
1303 | * strstart-1 and strstart are already inserted. If there is not | ||
1304 | * enough lookahead, the last two strings are not inserted in | ||
1305 | * the hash table. | ||
1306 | */ | ||
1307 | s->lookahead -= s->prev_length-1; | ||
1308 | s->prev_length -= 2; | ||
1309 | do { | ||
1310 | if (++s->strstart <= max_insert) { | ||
1311 | INSERT_STRING(s, s->strstart, hash_head); | ||
1312 | } | ||
1313 | } while (--s->prev_length != 0); | ||
1314 | s->match_available = 0; | ||
1315 | s->match_length = MIN_MATCH-1; | ||
1316 | s->strstart++; | ||
1317 | |||
1318 | if (bflush) FLUSH_BLOCK(s, 0); | ||
1319 | |||
1320 | } else if (s->match_available) { | ||
1321 | /* If there was no match at the previous position, output a | ||
1322 | * single literal. If there was a match but the current match | ||
1323 | * is longer, truncate the previous match to a single literal. | ||
1324 | */ | ||
1325 | Tracevv((stderr,"%c", s->window[s->strstart-1])); | ||
1326 | _tr_tally_lit(s, s->window[s->strstart-1], bflush); | ||
1327 | if (bflush) { | ||
1328 | FLUSH_BLOCK_ONLY(s, 0); | ||
1329 | } | ||
1330 | s->strstart++; | ||
1331 | s->lookahead--; | ||
1332 | if (s->strm->avail_out == 0) return need_more; | ||
1333 | } else { | ||
1334 | /* There is no previous match to compare with, wait for | ||
1335 | * the next step to decide. | ||
1336 | */ | ||
1337 | s->match_available = 1; | ||
1338 | s->strstart++; | ||
1339 | s->lookahead--; | ||
1340 | } | ||
1341 | } | ||
1342 | Assert (flush != Z_NO_FLUSH, "no flush?"); | ||
1343 | if (s->match_available) { | ||
1344 | Tracevv((stderr,"%c", s->window[s->strstart-1])); | ||
1345 | _tr_tally_lit(s, s->window[s->strstart-1], bflush); | ||
1346 | s->match_available = 0; | ||
1347 | } | ||
1348 | FLUSH_BLOCK(s, flush == Z_FINISH); | ||
1349 | return flush == Z_FINISH ? finish_done : block_done; | ||
1350 | } | ||
diff --git a/pwmanager/libcrypt/zlib/deflate.h b/pwmanager/libcrypt/zlib/deflate.h new file mode 100644 index 0000000..b99a48a --- a/dev/null +++ b/pwmanager/libcrypt/zlib/deflate.h | |||
@@ -0,0 +1,318 @@ | |||
1 | /* deflate.h -- internal compression state | ||
2 | * Copyright (C) 1995-2002 Jean-loup Gailly | ||
3 | * For conditions of distribution and use, see copyright notice in zlib.h | ||
4 | */ | ||
5 | |||
6 | /* WARNING: this file should *not* be used by applications. It is | ||
7 | part of the implementation of the compression library and is | ||
8 | subject to change. Applications should only use zlib.h. | ||
9 | */ | ||
10 | |||
11 | /* @(#) $Id$ */ | ||
12 | |||
13 | #ifndef _DEFLATE_H | ||
14 | #define _DEFLATE_H | ||
15 | |||
16 | #include "zutil.h" | ||
17 | |||
18 | /* =========================================================================== | ||
19 | * Internal compression state. | ||
20 | */ | ||
21 | |||
22 | #define LENGTH_CODES 29 | ||
23 | /* number of length codes, not counting the special END_BLOCK code */ | ||
24 | |||
25 | #define LITERALS 256 | ||
26 | /* number of literal bytes 0..255 */ | ||
27 | |||
28 | #define L_CODES (LITERALS+1+LENGTH_CODES) | ||
29 | /* number of Literal or Length codes, including the END_BLOCK code */ | ||
30 | |||
31 | #define D_CODES 30 | ||
32 | /* number of distance codes */ | ||
33 | |||
34 | #define BL_CODES 19 | ||
35 | /* number of codes used to transfer the bit lengths */ | ||
36 | |||
37 | #define HEAP_SIZE (2*L_CODES+1) | ||
38 | /* maximum heap size */ | ||
39 | |||
40 | #define MAX_BITS 15 | ||
41 | /* All codes must not exceed MAX_BITS bits */ | ||
42 | |||
43 | #define INIT_STATE 42 | ||
44 | #define BUSY_STATE 113 | ||
45 | #define FINISH_STATE 666 | ||
46 | /* Stream status */ | ||
47 | |||
48 | |||
49 | /* Data structure describing a single value and its code string. */ | ||
50 | typedef struct ct_data_s { | ||
51 | union { | ||
52 | ush freq; /* frequency count */ | ||
53 | ush code; /* bit string */ | ||
54 | } fc; | ||
55 | union { | ||
56 | ush dad; /* father node in Huffman tree */ | ||
57 | ush len; /* length of bit string */ | ||
58 | } dl; | ||
59 | } FAR ct_data; | ||
60 | |||
61 | #define Freq fc.freq | ||
62 | #define Code fc.code | ||
63 | #define Dad dl.dad | ||
64 | #define Len dl.len | ||
65 | |||
66 | typedef struct static_tree_desc_s static_tree_desc; | ||
67 | |||
68 | typedef struct tree_desc_s { | ||
69 | ct_data *dyn_tree; /* the dynamic tree */ | ||
70 | int max_code; /* largest code with non zero frequency */ | ||
71 | static_tree_desc *stat_desc; /* the corresponding static tree */ | ||
72 | } FAR tree_desc; | ||
73 | |||
74 | typedef ush Pos; | ||
75 | typedef Pos FAR Posf; | ||
76 | typedef unsigned IPos; | ||
77 | |||
78 | /* A Pos is an index in the character window. We use short instead of int to | ||
79 | * save space in the various tables. IPos is used only for parameter passing. | ||
80 | */ | ||
81 | |||
82 | typedef struct internal_state { | ||
83 | z_streamp strm; /* pointer back to this zlib stream */ | ||
84 | int status; /* as the name implies */ | ||
85 | Bytef *pending_buf; /* output still pending */ | ||
86 | ulg pending_buf_size; /* size of pending_buf */ | ||
87 | Bytef *pending_out; /* next pending byte to output to the stream */ | ||
88 | int pending; /* nb of bytes in the pending buffer */ | ||
89 | int noheader; /* suppress zlib header and adler32 */ | ||
90 | Byte data_type; /* UNKNOWN, BINARY or ASCII */ | ||
91 | Byte method; /* STORED (for zip only) or DEFLATED */ | ||
92 | int last_flush; /* value of flush param for previous deflate call */ | ||
93 | |||
94 | /* used by deflate.c: */ | ||
95 | |||
96 | uInt w_size; /* LZ77 window size (32K by default) */ | ||
97 | uInt w_bits; /* log2(w_size) (8..16) */ | ||
98 | uInt w_mask; /* w_size - 1 */ | ||
99 | |||
100 | Bytef *window; | ||
101 | /* Sliding window. Input bytes are read into the second half of the window, | ||
102 | * and move to the first half later to keep a dictionary of at least wSize | ||
103 | * bytes. With this organization, matches are limited to a distance of | ||
104 | * wSize-MAX_MATCH bytes, but this ensures that IO is always | ||
105 | * performed with a length multiple of the block size. Also, it limits | ||
106 | * the window size to 64K, which is quite useful on MSDOS. | ||
107 | * To do: use the user input buffer as sliding window. | ||
108 | */ | ||
109 | |||
110 | ulg window_size; | ||
111 | /* Actual size of window: 2*wSize, except when the user input buffer | ||
112 | * is directly used as sliding window. | ||
113 | */ | ||
114 | |||
115 | Posf *prev; | ||
116 | /* Link to older string with same hash index. To limit the size of this | ||
117 | * array to 64K, this link is maintained only for the last 32K strings. | ||
118 | * An index in this array is thus a window index modulo 32K. | ||
119 | */ | ||
120 | |||
121 | Posf *head; /* Heads of the hash chains or NIL. */ | ||
122 | |||
123 | uInt ins_h; /* hash index of string to be inserted */ | ||
124 | uInt hash_size; /* number of elements in hash table */ | ||
125 | uInt hash_bits; /* log2(hash_size) */ | ||
126 | uInt hash_mask; /* hash_size-1 */ | ||
127 | |||
128 | uInt hash_shift; | ||
129 | /* Number of bits by which ins_h must be shifted at each input | ||
130 | * step. It must be such that after MIN_MATCH steps, the oldest | ||
131 | * byte no longer takes part in the hash key, that is: | ||
132 | * hash_shift * MIN_MATCH >= hash_bits | ||
133 | */ | ||
134 | |||
135 | long block_start; | ||
136 | /* Window position at the beginning of the current output block. Gets | ||
137 | * negative when the window is moved backwards. | ||
138 | */ | ||
139 | |||
140 | uInt match_length; /* length of best match */ | ||
141 | IPos prev_match; /* previous match */ | ||
142 | int match_available; /* set if previous match exists */ | ||
143 | uInt strstart; /* start of string to insert */ | ||
144 | uInt match_start; /* start of matching string */ | ||
145 | uInt lookahead; /* number of valid bytes ahead in window */ | ||
146 | |||
147 | uInt prev_length; | ||
148 | /* Length of the best match at previous step. Matches not greater than this | ||
149 | * are discarded. This is used in the lazy match evaluation. | ||
150 | */ | ||
151 | |||
152 | uInt max_chain_length; | ||
153 | /* To speed up deflation, hash chains are never searched beyond this | ||
154 | * length. A higher limit improves compression ratio but degrades the | ||
155 | * speed. | ||
156 | */ | ||
157 | |||
158 | uInt max_lazy_match; | ||
159 | /* Attempt to find a better match only when the current match is strictly | ||
160 | * smaller than this value. This mechanism is used only for compression | ||
161 | * levels >= 4. | ||
162 | */ | ||
163 | # define max_insert_length max_lazy_match | ||
164 | /* Insert new strings in the hash table only if the match length is not | ||
165 | * greater than this length. This saves time but degrades compression. | ||
166 | * max_insert_length is used only for compression levels <= 3. | ||
167 | */ | ||
168 | |||
169 | int level; /* compression level (1..9) */ | ||
170 | int strategy; /* favor or force Huffman coding*/ | ||
171 | |||
172 | uInt good_match; | ||
173 | /* Use a faster search when the previous match is longer than this */ | ||
174 | |||
175 | int nice_match; /* Stop searching when current match exceeds this */ | ||
176 | |||
177 | /* used by trees.c: */ | ||
178 | /* Didn't use ct_data typedef below to supress compiler warning */ | ||
179 | struct ct_data_s dyn_ltree[HEAP_SIZE]; /* literal and length tree */ | ||
180 | struct ct_data_s dyn_dtree[2*D_CODES+1]; /* distance tree */ | ||
181 | struct ct_data_s bl_tree[2*BL_CODES+1]; /* Huffman tree for bit lengths */ | ||
182 | |||
183 | struct tree_desc_s l_desc; /* desc. for literal tree */ | ||
184 | struct tree_desc_s d_desc; /* desc. for distance tree */ | ||
185 | struct tree_desc_s bl_desc; /* desc. for bit length tree */ | ||
186 | |||
187 | ush bl_count[MAX_BITS+1]; | ||
188 | /* number of codes at each bit length for an optimal tree */ | ||
189 | |||
190 | int heap[2*L_CODES+1]; /* heap used to build the Huffman trees */ | ||
191 | int heap_len; /* number of elements in the heap */ | ||
192 | int heap_max; /* element of largest frequency */ | ||
193 | /* The sons of heap[n] are heap[2*n] and heap[2*n+1]. heap[0] is not used. | ||
194 | * The same heap array is used to build all trees. | ||
195 | */ | ||
196 | |||
197 | uch depth[2*L_CODES+1]; | ||
198 | /* Depth of each subtree used as tie breaker for trees of equal frequency | ||
199 | */ | ||
200 | |||
201 | uchf *l_buf; /* buffer for literals or lengths */ | ||
202 | |||
203 | uInt lit_bufsize; | ||
204 | /* Size of match buffer for literals/lengths. There are 4 reasons for | ||
205 | * limiting lit_bufsize to 64K: | ||
206 | * - frequencies can be kept in 16 bit counters | ||
207 | * - if compression is not successful for the first block, all input | ||
208 | * data is still in the window so we can still emit a stored block even | ||
209 | * when input comes from standard input. (This can also be done for | ||
210 | * all blocks if lit_bufsize is not greater than 32K.) | ||
211 | * - if compression is not successful for a file smaller than 64K, we can | ||
212 | * even emit a stored file instead of a stored block (saving 5 bytes). | ||
213 | * This is applicable only for zip (not gzip or zlib). | ||
214 | * - creating new Huffman trees less frequently may not provide fast | ||
215 | * adaptation to changes in the input data statistics. (Take for | ||
216 | * example a binary file with poorly compressible code followed by | ||
217 | * a highly compressible string table.) Smaller buffer sizes give | ||
218 | * fast adaptation but have of course the overhead of transmitting | ||
219 | * trees more frequently. | ||
220 | * - I can't count above 4 | ||
221 | */ | ||
222 | |||
223 | uInt last_lit; /* running index in l_buf */ | ||
224 | |||
225 | ushf *d_buf; | ||
226 | /* Buffer for distances. To simplify the code, d_buf and l_buf have | ||
227 | * the same number of elements. To use different lengths, an extra flag | ||
228 | * array would be necessary. | ||
229 | */ | ||
230 | |||
231 | ulg opt_len; /* bit length of current block with optimal trees */ | ||
232 | ulg static_len; /* bit length of current block with static trees */ | ||
233 | uInt matches; /* number of string matches in current block */ | ||
234 | int last_eob_len; /* bit length of EOB code for last block */ | ||
235 | |||
236 | #ifdef DEBUG | ||
237 | ulg compressed_len; /* total bit length of compressed file mod 2^32 */ | ||
238 | ulg bits_sent; /* bit length of compressed data sent mod 2^32 */ | ||
239 | #endif | ||
240 | |||
241 | ush bi_buf; | ||
242 | /* Output buffer. bits are inserted starting at the bottom (least | ||
243 | * significant bits). | ||
244 | */ | ||
245 | int bi_valid; | ||
246 | /* Number of valid bits in bi_buf. All bits above the last valid bit | ||
247 | * are always zero. | ||
248 | */ | ||
249 | |||
250 | } FAR deflate_state; | ||
251 | |||
252 | /* Output a byte on the stream. | ||
253 | * IN assertion: there is enough room in pending_buf. | ||
254 | */ | ||
255 | #define put_byte(s, c) {s->pending_buf[s->pending++] = (c);} | ||
256 | |||
257 | |||
258 | #define MIN_LOOKAHEAD (MAX_MATCH+MIN_MATCH+1) | ||
259 | /* Minimum amount of lookahead, except at the end of the input file. | ||
260 | * See deflate.c for comments about the MIN_MATCH+1. | ||
261 | */ | ||
262 | |||
263 | #define MAX_DIST(s) ((s)->w_size-MIN_LOOKAHEAD) | ||
264 | /* In order to simplify the code, particularly on 16 bit machines, match | ||
265 | * distances are limited to MAX_DIST instead of WSIZE. | ||
266 | */ | ||
267 | |||
268 | /* in trees.c */ | ||
269 | void _tr_init OF((deflate_state *s)); | ||
270 | int _tr_tally OF((deflate_state *s, unsigned dist, unsigned lc)); | ||
271 | void _tr_flush_block OF((deflate_state *s, charf *buf, ulg stored_len, | ||
272 | int eof)); | ||
273 | void _tr_align OF((deflate_state *s)); | ||
274 | void _tr_stored_block OF((deflate_state *s, charf *buf, ulg stored_len, | ||
275 | int eof)); | ||
276 | |||
277 | #define d_code(dist) \ | ||
278 | ((dist) < 256 ? _dist_code[dist] : _dist_code[256+((dist)>>7)]) | ||
279 | /* Mapping from a distance to a distance code. dist is the distance - 1 and | ||
280 | * must not have side effects. _dist_code[256] and _dist_code[257] are never | ||
281 | * used. | ||
282 | */ | ||
283 | |||
284 | #ifndef DEBUG | ||
285 | /* Inline versions of _tr_tally for speed: */ | ||
286 | |||
287 | #if defined(GEN_TREES_H) || !defined(STDC) | ||
288 | extern uch _length_code[]; | ||
289 | extern uch _dist_code[]; | ||
290 | #else | ||
291 | extern const uch _length_code[]; | ||
292 | extern const uch _dist_code[]; | ||
293 | #endif | ||
294 | |||
295 | # define _tr_tally_lit(s, c, flush) \ | ||
296 | { uch cc = (c); \ | ||
297 | s->d_buf[s->last_lit] = 0; \ | ||
298 | s->l_buf[s->last_lit++] = cc; \ | ||
299 | s->dyn_ltree[cc].Freq++; \ | ||
300 | flush = (s->last_lit == s->lit_bufsize-1); \ | ||
301 | } | ||
302 | # define _tr_tally_dist(s, distance, length, flush) \ | ||
303 | { uch len = (length); \ | ||
304 | ush dist = (distance); \ | ||
305 | s->d_buf[s->last_lit] = dist; \ | ||
306 | s->l_buf[s->last_lit++] = len; \ | ||
307 | dist--; \ | ||
308 | s->dyn_ltree[_length_code[len]+LITERALS+1].Freq++; \ | ||
309 | s->dyn_dtree[d_code(dist)].Freq++; \ | ||
310 | flush = (s->last_lit == s->lit_bufsize-1); \ | ||
311 | } | ||
312 | #else | ||
313 | # define _tr_tally_lit(s, c, flush) flush = _tr_tally(s, 0, c) | ||
314 | # define _tr_tally_dist(s, distance, length, flush) \ | ||
315 | flush = _tr_tally(s, distance, length) | ||
316 | #endif | ||
317 | |||
318 | #endif | ||
diff --git a/pwmanager/libcrypt/zlib/infblock.c b/pwmanager/libcrypt/zlib/infblock.c new file mode 100644 index 0000000..dd7a6d4 --- a/dev/null +++ b/pwmanager/libcrypt/zlib/infblock.c | |||
@@ -0,0 +1,403 @@ | |||
1 | /* infblock.c -- interpret and process block types to last block | ||
2 | * Copyright (C) 1995-2002 Mark Adler | ||
3 | * For conditions of distribution and use, see copyright notice in zlib.h | ||
4 | */ | ||
5 | |||
6 | #include "zutil.h" | ||
7 | #include "infblock.h" | ||
8 | #include "inftrees.h" | ||
9 | #include "infcodes.h" | ||
10 | #include "infutil.h" | ||
11 | |||
12 | struct inflate_codes_state {int dummy;}; /* for buggy compilers */ | ||
13 | |||
14 | /* simplify the use of the inflate_huft type with some defines */ | ||
15 | #define exop word.what.Exop | ||
16 | #define bits word.what.Bits | ||
17 | |||
18 | /* Table for deflate from PKZIP's appnote.txt. */ | ||
19 | local const uInt border[] = { /* Order of the bit length code lengths */ | ||
20 | 16, 17, 18, 0, 8, 7, 9, 6, 10, 5, 11, 4, 12, 3, 13, 2, 14, 1, 15}; | ||
21 | |||
22 | /* | ||
23 | Notes beyond the 1.93a appnote.txt: | ||
24 | |||
25 | 1. Distance pointers never point before the beginning of the output | ||
26 | stream. | ||
27 | 2. Distance pointers can point back across blocks, up to 32k away. | ||
28 | 3. There is an implied maximum of 7 bits for the bit length table and | ||
29 | 15 bits for the actual data. | ||
30 | 4. If only one code exists, then it is encoded using one bit. (Zero | ||
31 | would be more efficient, but perhaps a little confusing.) If two | ||
32 | codes exist, they are coded using one bit each (0 and 1). | ||
33 | 5. There is no way of sending zero distance codes--a dummy must be | ||
34 | sent if there are none. (History: a pre 2.0 version of PKZIP would | ||
35 | store blocks with no distance codes, but this was discovered to be | ||
36 | too harsh a criterion.) Valid only for 1.93a. 2.04c does allow | ||
37 | zero distance codes, which is sent as one code of zero bits in | ||
38 | length. | ||
39 | 6. There are up to 286 literal/length codes. Code 256 represents the | ||
40 | end-of-block. Note however that the static length tree defines | ||
41 | 288 codes just to fill out the Huffman codes. Codes 286 and 287 | ||
42 | cannot be used though, since there is no length base or extra bits | ||
43 | defined for them. Similarily, there are up to 30 distance codes. | ||
44 | However, static trees define 32 codes (all 5 bits) to fill out the | ||
45 | Huffman codes, but the last two had better not show up in the data. | ||
46 | 7. Unzip can check dynamic Huffman blocks for complete code sets. | ||
47 | The exception is that a single code would not be complete (see #4). | ||
48 | 8. The five bits following the block type is really the number of | ||
49 | literal codes sent minus 257. | ||
50 | 9. Length codes 8,16,16 are interpreted as 13 length codes of 8 bits | ||
51 | (1+6+6). Therefore, to output three times the length, you output | ||
52 | three codes (1+1+1), whereas to output four times the same length, | ||
53 | you only need two codes (1+3). Hmm. | ||
54 | 10. In the tree reconstruction algorithm, Code = Code + Increment | ||
55 | only if BitLength(i) is not zero. (Pretty obvious.) | ||
56 | 11. Correction: 4 Bits: # of Bit Length codes - 4 (4 - 19) | ||
57 | 12. Note: length code 284 can represent 227-258, but length code 285 | ||
58 | really is 258. The last length deserves its own, short code | ||
59 | since it gets used a lot in very redundant files. The length | ||
60 | 258 is special since 258 - 3 (the min match length) is 255. | ||
61 | 13. The literal/length and distance code bit lengths are read as a | ||
62 | single stream of lengths. It is possible (and advantageous) for | ||
63 | a repeat code (16, 17, or 18) to go across the boundary between | ||
64 | the two sets of lengths. | ||
65 | */ | ||
66 | |||
67 | |||
68 | void inflate_blocks_reset(s, z, c) | ||
69 | inflate_blocks_statef *s; | ||
70 | z_streamp z; | ||
71 | uLongf *c; | ||
72 | { | ||
73 | if (c != Z_NULL) | ||
74 | *c = s->check; | ||
75 | if (s->mode == BTREE || s->mode == DTREE) | ||
76 | ZFREE(z, s->sub.trees.blens); | ||
77 | if (s->mode == CODES) | ||
78 | inflate_codes_free(s->sub.decode.codes, z); | ||
79 | s->mode = TYPE; | ||
80 | s->bitk = 0; | ||
81 | s->bitb = 0; | ||
82 | s->read = s->write = s->window; | ||
83 | if (s->checkfn != Z_NULL) | ||
84 | z->adler = s->check = (*s->checkfn)(0L, (const Bytef *)Z_NULL, 0); | ||
85 | Tracev((stderr, "inflate: blocks reset\n")); | ||
86 | } | ||
87 | |||
88 | |||
89 | inflate_blocks_statef *inflate_blocks_new(z, c, w) | ||
90 | z_streamp z; | ||
91 | check_func c; | ||
92 | uInt w; | ||
93 | { | ||
94 | inflate_blocks_statef *s; | ||
95 | |||
96 | if ((s = (inflate_blocks_statef *)ZALLOC | ||
97 | (z,1,sizeof(struct inflate_blocks_state))) == Z_NULL) | ||
98 | return s; | ||
99 | if ((s->hufts = | ||
100 | (inflate_huft *)ZALLOC(z, sizeof(inflate_huft), MANY)) == Z_NULL) | ||
101 | { | ||
102 | ZFREE(z, s); | ||
103 | return Z_NULL; | ||
104 | } | ||
105 | if ((s->window = (Bytef *)ZALLOC(z, 1, w)) == Z_NULL) | ||
106 | { | ||
107 | ZFREE(z, s->hufts); | ||
108 | ZFREE(z, s); | ||
109 | return Z_NULL; | ||
110 | } | ||
111 | s->end = s->window + w; | ||
112 | s->checkfn = c; | ||
113 | s->mode = TYPE; | ||
114 | Tracev((stderr, "inflate: blocks allocated\n")); | ||
115 | inflate_blocks_reset(s, z, Z_NULL); | ||
116 | return s; | ||
117 | } | ||
118 | |||
119 | |||
120 | int inflate_blocks(s, z, r) | ||
121 | inflate_blocks_statef *s; | ||
122 | z_streamp z; | ||
123 | int r; | ||
124 | { | ||
125 | uInt t; /* temporary storage */ | ||
126 | uLong b; /* bit buffer */ | ||
127 | uInt k; /* bits in bit buffer */ | ||
128 | Bytef *p; /* input data pointer */ | ||
129 | uInt n; /* bytes available there */ | ||
130 | Bytef *q; /* output window write pointer */ | ||
131 | uInt m; /* bytes to end of window or read pointer */ | ||
132 | |||
133 | /* copy input/output information to locals (UPDATE macro restores) */ | ||
134 | LOAD | ||
135 | |||
136 | /* process input based on current state */ | ||
137 | while (1) switch (s->mode) | ||
138 | { | ||
139 | case TYPE: | ||
140 | NEEDBITS(3) | ||
141 | t = (uInt)b & 7; | ||
142 | s->last = t & 1; | ||
143 | switch (t >> 1) | ||
144 | { | ||
145 | case 0: /* stored */ | ||
146 | Tracev((stderr, "inflate: stored block%s\n", | ||
147 | s->last ? " (last)" : "")); | ||
148 | DUMPBITS(3) | ||
149 | t = k & 7; /* go to byte boundary */ | ||
150 | DUMPBITS(t) | ||
151 | s->mode = LENS; /* get length of stored block */ | ||
152 | break; | ||
153 | case 1: /* fixed */ | ||
154 | Tracev((stderr, "inflate: fixed codes block%s\n", | ||
155 | s->last ? " (last)" : "")); | ||
156 | { | ||
157 | uInt bl, bd; | ||
158 | inflate_huft *tl, *td; | ||
159 | |||
160 | inflate_trees_fixed(&bl, &bd, &tl, &td, z); | ||
161 | s->sub.decode.codes = inflate_codes_new(bl, bd, tl, td, z); | ||
162 | if (s->sub.decode.codes == Z_NULL) | ||
163 | { | ||
164 | r = Z_MEM_ERROR; | ||
165 | LEAVE | ||
166 | } | ||
167 | } | ||
168 | DUMPBITS(3) | ||
169 | s->mode = CODES; | ||
170 | break; | ||
171 | case 2: /* dynamic */ | ||
172 | Tracev((stderr, "inflate: dynamic codes block%s\n", | ||
173 | s->last ? " (last)" : "")); | ||
174 | DUMPBITS(3) | ||
175 | s->mode = TABLE; | ||
176 | break; | ||
177 | case 3: /* illegal */ | ||
178 | DUMPBITS(3) | ||
179 | s->mode = BAD; | ||
180 | z->msg = (char*)"invalid block type"; | ||
181 | r = Z_DATA_ERROR; | ||
182 | LEAVE | ||
183 | } | ||
184 | break; | ||
185 | case LENS: | ||
186 | NEEDBITS(32) | ||
187 | if ((((~b) >> 16) & 0xffff) != (b & 0xffff)) | ||
188 | { | ||
189 | s->mode = BAD; | ||
190 | z->msg = (char*)"invalid stored block lengths"; | ||
191 | r = Z_DATA_ERROR; | ||
192 | LEAVE | ||
193 | } | ||
194 | s->sub.left = (uInt)b & 0xffff; | ||
195 | b = k = 0; /* dump bits */ | ||
196 | Tracev((stderr, "inflate: stored length %u\n", s->sub.left)); | ||
197 | s->mode = s->sub.left ? STORED : (s->last ? DRY : TYPE); | ||
198 | break; | ||
199 | case STORED: | ||
200 | if (n == 0) | ||
201 | LEAVE | ||
202 | NEEDOUT | ||
203 | t = s->sub.left; | ||
204 | if (t > n) t = n; | ||
205 | if (t > m) t = m; | ||
206 | zmemcpy(q, p, t); | ||
207 | p += t; n -= t; | ||
208 | q += t; m -= t; | ||
209 | if ((s->sub.left -= t) != 0) | ||
210 | break; | ||
211 | Tracev((stderr, "inflate: stored end, %lu total out\n", | ||
212 | z->total_out + (q >= s->read ? q - s->read : | ||
213 | (s->end - s->read) + (q - s->window)))); | ||
214 | s->mode = s->last ? DRY : TYPE; | ||
215 | break; | ||
216 | case TABLE: | ||
217 | NEEDBITS(14) | ||
218 | s->sub.trees.table = t = (uInt)b & 0x3fff; | ||
219 | #ifndef PKZIP_BUG_WORKAROUND | ||
220 | if ((t & 0x1f) > 29 || ((t >> 5) & 0x1f) > 29) | ||
221 | { | ||
222 | s->mode = BAD; | ||
223 | z->msg = (char*)"too many length or distance symbols"; | ||
224 | r = Z_DATA_ERROR; | ||
225 | LEAVE | ||
226 | } | ||
227 | #endif | ||
228 | t = 258 + (t & 0x1f) + ((t >> 5) & 0x1f); | ||
229 | if ((s->sub.trees.blens = (uIntf*)ZALLOC(z, t, sizeof(uInt))) == Z_NULL) | ||
230 | { | ||
231 | r = Z_MEM_ERROR; | ||
232 | LEAVE | ||
233 | } | ||
234 | DUMPBITS(14) | ||
235 | s->sub.trees.index = 0; | ||
236 | Tracev((stderr, "inflate: table sizes ok\n")); | ||
237 | s->mode = BTREE; | ||
238 | case BTREE: | ||
239 | while (s->sub.trees.index < 4 + (s->sub.trees.table >> 10)) | ||
240 | { | ||
241 | NEEDBITS(3) | ||
242 | s->sub.trees.blens[border[s->sub.trees.index++]] = (uInt)b & 7; | ||
243 | DUMPBITS(3) | ||
244 | } | ||
245 | while (s->sub.trees.index < 19) | ||
246 | s->sub.trees.blens[border[s->sub.trees.index++]] = 0; | ||
247 | s->sub.trees.bb = 7; | ||
248 | t = inflate_trees_bits(s->sub.trees.blens, &s->sub.trees.bb, | ||
249 | &s->sub.trees.tb, s->hufts, z); | ||
250 | if (t != Z_OK) | ||
251 | { | ||
252 | r = t; | ||
253 | if (r == Z_DATA_ERROR) | ||
254 | { | ||
255 | ZFREE(z, s->sub.trees.blens); | ||
256 | s->mode = BAD; | ||
257 | } | ||
258 | LEAVE | ||
259 | } | ||
260 | s->sub.trees.index = 0; | ||
261 | Tracev((stderr, "inflate: bits tree ok\n")); | ||
262 | s->mode = DTREE; | ||
263 | case DTREE: | ||
264 | while (t = s->sub.trees.table, | ||
265 | s->sub.trees.index < 258 + (t & 0x1f) + ((t >> 5) & 0x1f)) | ||
266 | { | ||
267 | inflate_huft *h; | ||
268 | uInt i, j, c; | ||
269 | |||
270 | t = s->sub.trees.bb; | ||
271 | NEEDBITS(t) | ||
272 | h = s->sub.trees.tb + ((uInt)b & inflate_mask[t]); | ||
273 | t = h->bits; | ||
274 | c = h->base; | ||
275 | if (c < 16) | ||
276 | { | ||
277 | DUMPBITS(t) | ||
278 | s->sub.trees.blens[s->sub.trees.index++] = c; | ||
279 | } | ||
280 | else /* c == 16..18 */ | ||
281 | { | ||
282 | i = c == 18 ? 7 : c - 14; | ||
283 | j = c == 18 ? 11 : 3; | ||
284 | NEEDBITS(t + i) | ||
285 | DUMPBITS(t) | ||
286 | j += (uInt)b & inflate_mask[i]; | ||
287 | DUMPBITS(i) | ||
288 | i = s->sub.trees.index; | ||
289 | t = s->sub.trees.table; | ||
290 | if (i + j > 258 + (t & 0x1f) + ((t >> 5) & 0x1f) || | ||
291 | (c == 16 && i < 1)) | ||
292 | { | ||
293 | ZFREE(z, s->sub.trees.blens); | ||
294 | s->mode = BAD; | ||
295 | z->msg = (char*)"invalid bit length repeat"; | ||
296 | r = Z_DATA_ERROR; | ||
297 | LEAVE | ||
298 | } | ||
299 | c = c == 16 ? s->sub.trees.blens[i - 1] : 0; | ||
300 | do { | ||
301 | s->sub.trees.blens[i++] = c; | ||
302 | } while (--j); | ||
303 | s->sub.trees.index = i; | ||
304 | } | ||
305 | } | ||
306 | s->sub.trees.tb = Z_NULL; | ||
307 | { | ||
308 | uInt bl, bd; | ||
309 | inflate_huft *tl, *td; | ||
310 | inflate_codes_statef *c; | ||
311 | |||
312 | bl = 9; /* must be <= 9 for lookahead assumptions */ | ||
313 | bd = 6; /* must be <= 9 for lookahead assumptions */ | ||
314 | t = s->sub.trees.table; | ||
315 | t = inflate_trees_dynamic(257 + (t & 0x1f), 1 + ((t >> 5) & 0x1f), | ||
316 | s->sub.trees.blens, &bl, &bd, &tl, &td, | ||
317 | s->hufts, z); | ||
318 | if (t != Z_OK) | ||
319 | { | ||
320 | if (t == (uInt)Z_DATA_ERROR) | ||
321 | { | ||
322 | ZFREE(z, s->sub.trees.blens); | ||
323 | s->mode = BAD; | ||
324 | } | ||
325 | r = t; | ||
326 | LEAVE | ||
327 | } | ||
328 | Tracev((stderr, "inflate: trees ok\n")); | ||
329 | if ((c = inflate_codes_new(bl, bd, tl, td, z)) == Z_NULL) | ||
330 | { | ||
331 | r = Z_MEM_ERROR; | ||
332 | LEAVE | ||
333 | } | ||
334 | s->sub.decode.codes = c; | ||
335 | } | ||
336 | ZFREE(z, s->sub.trees.blens); | ||
337 | s->mode = CODES; | ||
338 | case CODES: | ||
339 | UPDATE | ||
340 | if ((r = inflate_codes(s, z, r)) != Z_STREAM_END) | ||
341 | return inflate_flush(s, z, r); | ||
342 | r = Z_OK; | ||
343 | inflate_codes_free(s->sub.decode.codes, z); | ||
344 | LOAD | ||
345 | Tracev((stderr, "inflate: codes end, %lu total out\n", | ||
346 | z->total_out + (q >= s->read ? q - s->read : | ||
347 | (s->end - s->read) + (q - s->window)))); | ||
348 | if (!s->last) | ||
349 | { | ||
350 | s->mode = TYPE; | ||
351 | break; | ||
352 | } | ||
353 | s->mode = DRY; | ||
354 | case DRY: | ||
355 | FLUSH | ||
356 | if (s->read != s->write) | ||
357 | LEAVE | ||
358 | s->mode = DONE; | ||
359 | case DONE: | ||
360 | r = Z_STREAM_END; | ||
361 | LEAVE | ||
362 | case BAD: | ||
363 | r = Z_DATA_ERROR; | ||
364 | LEAVE | ||
365 | default: | ||
366 | r = Z_STREAM_ERROR; | ||
367 | LEAVE | ||
368 | } | ||
369 | } | ||
370 | |||
371 | |||
372 | int inflate_blocks_free(s, z) | ||
373 | inflate_blocks_statef *s; | ||
374 | z_streamp z; | ||
375 | { | ||
376 | inflate_blocks_reset(s, z, Z_NULL); | ||
377 | ZFREE(z, s->window); | ||
378 | ZFREE(z, s->hufts); | ||
379 | ZFREE(z, s); | ||
380 | Tracev((stderr, "inflate: blocks freed\n")); | ||
381 | return Z_OK; | ||
382 | } | ||
383 | |||
384 | |||
385 | void inflate_set_dictionary(s, d, n) | ||
386 | inflate_blocks_statef *s; | ||
387 | const Bytef *d; | ||
388 | uInt n; | ||
389 | { | ||
390 | zmemcpy(s->window, d, n); | ||
391 | s->read = s->write = s->window + n; | ||
392 | } | ||
393 | |||
394 | |||
395 | /* Returns true if inflate is currently at the end of a block generated | ||
396 | * by Z_SYNC_FLUSH or Z_FULL_FLUSH. | ||
397 | * IN assertion: s != Z_NULL | ||
398 | */ | ||
399 | int inflate_blocks_sync_point(s) | ||
400 | inflate_blocks_statef *s; | ||
401 | { | ||
402 | return s->mode == LENS; | ||
403 | } | ||
diff --git a/pwmanager/libcrypt/zlib/infblock.h b/pwmanager/libcrypt/zlib/infblock.h new file mode 100644 index 0000000..173b226 --- a/dev/null +++ b/pwmanager/libcrypt/zlib/infblock.h | |||
@@ -0,0 +1,39 @@ | |||
1 | /* infblock.h -- header to use infblock.c | ||
2 | * Copyright (C) 1995-2002 Mark Adler | ||
3 | * For conditions of distribution and use, see copyright notice in zlib.h | ||
4 | */ | ||
5 | |||
6 | /* WARNING: this file should *not* be used by applications. It is | ||
7 | part of the implementation of the compression library and is | ||
8 | subject to change. Applications should only use zlib.h. | ||
9 | */ | ||
10 | |||
11 | struct inflate_blocks_state; | ||
12 | typedef struct inflate_blocks_state FAR inflate_blocks_statef; | ||
13 | |||
14 | extern inflate_blocks_statef * inflate_blocks_new OF(( | ||
15 | z_streamp z, | ||
16 | check_func c, /* check function */ | ||
17 | uInt w)); /* window size */ | ||
18 | |||
19 | extern int inflate_blocks OF(( | ||
20 | inflate_blocks_statef *, | ||
21 | z_streamp , | ||
22 | int)); /* initial return code */ | ||
23 | |||
24 | extern void inflate_blocks_reset OF(( | ||
25 | inflate_blocks_statef *, | ||
26 | z_streamp , | ||
27 | uLongf *)); /* check value on output */ | ||
28 | |||
29 | extern int inflate_blocks_free OF(( | ||
30 | inflate_blocks_statef *, | ||
31 | z_streamp)); | ||
32 | |||
33 | extern void inflate_set_dictionary OF(( | ||
34 | inflate_blocks_statef *s, | ||
35 | const Bytef *d, /* dictionary */ | ||
36 | uInt n)); /* dictionary length */ | ||
37 | |||
38 | extern int inflate_blocks_sync_point OF(( | ||
39 | inflate_blocks_statef *s)); | ||
diff --git a/pwmanager/libcrypt/zlib/infcodes.c b/pwmanager/libcrypt/zlib/infcodes.c new file mode 100644 index 0000000..9abe541 --- a/dev/null +++ b/pwmanager/libcrypt/zlib/infcodes.c | |||
@@ -0,0 +1,251 @@ | |||
1 | /* infcodes.c -- process literals and length/distance pairs | ||
2 | * Copyright (C) 1995-2002 Mark Adler | ||
3 | * For conditions of distribution and use, see copyright notice in zlib.h | ||
4 | */ | ||
5 | |||
6 | #include "zutil.h" | ||
7 | #include "inftrees.h" | ||
8 | #include "infblock.h" | ||
9 | #include "infcodes.h" | ||
10 | #include "infutil.h" | ||
11 | #include "inffast.h" | ||
12 | |||
13 | /* simplify the use of the inflate_huft type with some defines */ | ||
14 | #define exop word.what.Exop | ||
15 | #define bits word.what.Bits | ||
16 | |||
17 | typedef enum { /* waiting for "i:"=input, "o:"=output, "x:"=nothing */ | ||
18 | START, /* x: set up for LEN */ | ||
19 | LEN, /* i: get length/literal/eob next */ | ||
20 | LENEXT, /* i: getting length extra (have base) */ | ||
21 | DIST, /* i: get distance next */ | ||
22 | DISTEXT, /* i: getting distance extra */ | ||
23 | COPY, /* o: copying bytes in window, waiting for space */ | ||
24 | LIT, /* o: got literal, waiting for output space */ | ||
25 | WASH, /* o: got eob, possibly still output waiting */ | ||
26 | END, /* x: got eob and all data flushed */ | ||
27 | BADCODE} /* x: got error */ | ||
28 | inflate_codes_mode; | ||
29 | |||
30 | /* inflate codes private state */ | ||
31 | struct inflate_codes_state { | ||
32 | |||
33 | /* mode */ | ||
34 | inflate_codes_mode mode; /* current inflate_codes mode */ | ||
35 | |||
36 | /* mode dependent information */ | ||
37 | uInt len; | ||
38 | union { | ||
39 | struct { | ||
40 | inflate_huft *tree; /* pointer into tree */ | ||
41 | uInt need; /* bits needed */ | ||
42 | } code; /* if LEN or DIST, where in tree */ | ||
43 | uInt lit; /* if LIT, literal */ | ||
44 | struct { | ||
45 | uInt get; /* bits to get for extra */ | ||
46 | uInt dist; /* distance back to copy from */ | ||
47 | } copy; /* if EXT or COPY, where and how much */ | ||
48 | } sub; /* submode */ | ||
49 | |||
50 | /* mode independent information */ | ||
51 | Byte lbits; /* ltree bits decoded per branch */ | ||
52 | Byte dbits; /* dtree bits decoder per branch */ | ||
53 | inflate_huft *ltree; /* literal/length/eob tree */ | ||
54 | inflate_huft *dtree; /* distance tree */ | ||
55 | |||
56 | }; | ||
57 | |||
58 | |||
59 | inflate_codes_statef *inflate_codes_new(bl, bd, tl, td, z) | ||
60 | uInt bl, bd; | ||
61 | inflate_huft *tl; | ||
62 | inflate_huft *td; /* need separate declaration for Borland C++ */ | ||
63 | z_streamp z; | ||
64 | { | ||
65 | inflate_codes_statef *c; | ||
66 | |||
67 | if ((c = (inflate_codes_statef *) | ||
68 | ZALLOC(z,1,sizeof(struct inflate_codes_state))) != Z_NULL) | ||
69 | { | ||
70 | c->mode = START; | ||
71 | c->lbits = (Byte)bl; | ||
72 | c->dbits = (Byte)bd; | ||
73 | c->ltree = tl; | ||
74 | c->dtree = td; | ||
75 | Tracev((stderr, "inflate: codes new\n")); | ||
76 | } | ||
77 | return c; | ||
78 | } | ||
79 | |||
80 | |||
81 | int inflate_codes(s, z, r) | ||
82 | inflate_blocks_statef *s; | ||
83 | z_streamp z; | ||
84 | int r; | ||
85 | { | ||
86 | uInt j; /* temporary storage */ | ||
87 | inflate_huft *t; /* temporary pointer */ | ||
88 | uInt e; /* extra bits or operation */ | ||
89 | uLong b; /* bit buffer */ | ||
90 | uInt k; /* bits in bit buffer */ | ||
91 | Bytef *p; /* input data pointer */ | ||
92 | uInt n; /* bytes available there */ | ||
93 | Bytef *q; /* output window write pointer */ | ||
94 | uInt m; /* bytes to end of window or read pointer */ | ||
95 | Bytef *f; /* pointer to copy strings from */ | ||
96 | inflate_codes_statef *c = s->sub.decode.codes; /* codes state */ | ||
97 | |||
98 | /* copy input/output information to locals (UPDATE macro restores) */ | ||
99 | LOAD | ||
100 | |||
101 | /* process input and output based on current state */ | ||
102 | while (1) switch (c->mode) | ||
103 | { /* waiting for "i:"=input, "o:"=output, "x:"=nothing */ | ||
104 | case START: /* x: set up for LEN */ | ||
105 | #ifndef SLOW | ||
106 | if (m >= 258 && n >= 10) | ||
107 | { | ||
108 | UPDATE | ||
109 | r = inflate_fast(c->lbits, c->dbits, c->ltree, c->dtree, s, z); | ||
110 | LOAD | ||
111 | if (r != Z_OK) | ||
112 | { | ||
113 | c->mode = r == Z_STREAM_END ? WASH : BADCODE; | ||
114 | break; | ||
115 | } | ||
116 | } | ||
117 | #endif /* !SLOW */ | ||
118 | c->sub.code.need = c->lbits; | ||
119 | c->sub.code.tree = c->ltree; | ||
120 | c->mode = LEN; | ||
121 | case LEN: /* i: get length/literal/eob next */ | ||
122 | j = c->sub.code.need; | ||
123 | NEEDBITS(j) | ||
124 | t = c->sub.code.tree + ((uInt)b & inflate_mask[j]); | ||
125 | DUMPBITS(t->bits) | ||
126 | e = (uInt)(t->exop); | ||
127 | if (e == 0) /* literal */ | ||
128 | { | ||
129 | c->sub.lit = t->base; | ||
130 | Tracevv((stderr, t->base >= 0x20 && t->base < 0x7f ? | ||
131 | "inflate: literal '%c'\n" : | ||
132 | "inflate: literal 0x%02x\n", t->base)); | ||
133 | c->mode = LIT; | ||
134 | break; | ||
135 | } | ||
136 | if (e & 16) /* length */ | ||
137 | { | ||
138 | c->sub.copy.get = e & 15; | ||
139 | c->len = t->base; | ||
140 | c->mode = LENEXT; | ||
141 | break; | ||
142 | } | ||
143 | if ((e & 64) == 0) /* next table */ | ||
144 | { | ||
145 | c->sub.code.need = e; | ||
146 | c->sub.code.tree = t + t->base; | ||
147 | break; | ||
148 | } | ||
149 | if (e & 32) /* end of block */ | ||
150 | { | ||
151 | Tracevv((stderr, "inflate: end of block\n")); | ||
152 | c->mode = WASH; | ||
153 | break; | ||
154 | } | ||
155 | c->mode = BADCODE; /* invalid code */ | ||
156 | z->msg = (char*)"invalid literal/length code"; | ||
157 | r = Z_DATA_ERROR; | ||
158 | LEAVE | ||
159 | case LENEXT: /* i: getting length extra (have base) */ | ||
160 | j = c->sub.copy.get; | ||
161 | NEEDBITS(j) | ||
162 | c->len += (uInt)b & inflate_mask[j]; | ||
163 | DUMPBITS(j) | ||
164 | c->sub.code.need = c->dbits; | ||
165 | c->sub.code.tree = c->dtree; | ||
166 | Tracevv((stderr, "inflate: length %u\n", c->len)); | ||
167 | c->mode = DIST; | ||
168 | case DIST: /* i: get distance next */ | ||
169 | j = c->sub.code.need; | ||
170 | NEEDBITS(j) | ||
171 | t = c->sub.code.tree + ((uInt)b & inflate_mask[j]); | ||
172 | DUMPBITS(t->bits) | ||
173 | e = (uInt)(t->exop); | ||
174 | if (e & 16) /* distance */ | ||
175 | { | ||
176 | c->sub.copy.get = e & 15; | ||
177 | c->sub.copy.dist = t->base; | ||
178 | c->mode = DISTEXT; | ||
179 | break; | ||
180 | } | ||
181 | if ((e & 64) == 0) /* next table */ | ||
182 | { | ||
183 | c->sub.code.need = e; | ||
184 | c->sub.code.tree = t + t->base; | ||
185 | break; | ||
186 | } | ||
187 | c->mode = BADCODE; /* invalid code */ | ||
188 | z->msg = (char*)"invalid distance code"; | ||
189 | r = Z_DATA_ERROR; | ||
190 | LEAVE | ||
191 | case DISTEXT: /* i: getting distance extra */ | ||
192 | j = c->sub.copy.get; | ||
193 | NEEDBITS(j) | ||
194 | c->sub.copy.dist += (uInt)b & inflate_mask[j]; | ||
195 | DUMPBITS(j) | ||
196 | Tracevv((stderr, "inflate: distance %u\n", c->sub.copy.dist)); | ||
197 | c->mode = COPY; | ||
198 | case COPY: /* o: copying bytes in window, waiting for space */ | ||
199 | f = q - c->sub.copy.dist; | ||
200 | while (f < s->window) /* modulo window size-"while" instead */ | ||
201 | f += s->end - s->window; /* of "if" handles invalid distances */ | ||
202 | while (c->len) | ||
203 | { | ||
204 | NEEDOUT | ||
205 | OUTBYTE(*f++) | ||
206 | if (f == s->end) | ||
207 | f = s->window; | ||
208 | c->len--; | ||
209 | } | ||
210 | c->mode = START; | ||
211 | break; | ||
212 | case LIT: /* o: got literal, waiting for output space */ | ||
213 | NEEDOUT | ||
214 | OUTBYTE(c->sub.lit) | ||
215 | c->mode = START; | ||
216 | break; | ||
217 | case WASH: /* o: got eob, possibly more output */ | ||
218 | if (k > 7) /* return unused byte, if any */ | ||
219 | { | ||
220 | Assert(k < 16, "inflate_codes grabbed too many bytes") | ||
221 | k -= 8; | ||
222 | n++; | ||
223 | p--; /* can always return one */ | ||
224 | } | ||
225 | FLUSH | ||
226 | if (s->read != s->write) | ||
227 | LEAVE | ||
228 | c->mode = END; | ||
229 | case END: | ||
230 | r = Z_STREAM_END; | ||
231 | LEAVE | ||
232 | case BADCODE: /* x: got error */ | ||
233 | r = Z_DATA_ERROR; | ||
234 | LEAVE | ||
235 | default: | ||
236 | r = Z_STREAM_ERROR; | ||
237 | LEAVE | ||
238 | } | ||
239 | #ifdef NEED_DUMMY_RETURN | ||
240 | return Z_STREAM_ERROR; /* Some dumb compilers complain without this */ | ||
241 | #endif | ||
242 | } | ||
243 | |||
244 | |||
245 | void inflate_codes_free(c, z) | ||
246 | inflate_codes_statef *c; | ||
247 | z_streamp z; | ||
248 | { | ||
249 | ZFREE(z, c); | ||
250 | Tracev((stderr, "inflate: codes free\n")); | ||
251 | } | ||
diff --git a/pwmanager/libcrypt/zlib/infcodes.h b/pwmanager/libcrypt/zlib/infcodes.h new file mode 100644 index 0000000..46821a0 --- a/dev/null +++ b/pwmanager/libcrypt/zlib/infcodes.h | |||
@@ -0,0 +1,27 @@ | |||
1 | /* infcodes.h -- header to use infcodes.c | ||
2 | * Copyright (C) 1995-2002 Mark Adler | ||
3 | * For conditions of distribution and use, see copyright notice in zlib.h | ||
4 | */ | ||
5 | |||
6 | /* WARNING: this file should *not* be used by applications. It is | ||
7 | part of the implementation of the compression library and is | ||
8 | subject to change. Applications should only use zlib.h. | ||
9 | */ | ||
10 | |||
11 | struct inflate_codes_state; | ||
12 | typedef struct inflate_codes_state FAR inflate_codes_statef; | ||
13 | |||
14 | extern inflate_codes_statef *inflate_codes_new OF(( | ||
15 | uInt, uInt, | ||
16 | inflate_huft *, inflate_huft *, | ||
17 | z_streamp )); | ||
18 | |||
19 | extern int inflate_codes OF(( | ||
20 | inflate_blocks_statef *, | ||
21 | z_streamp , | ||
22 | int)); | ||
23 | |||
24 | extern void inflate_codes_free OF(( | ||
25 | inflate_codes_statef *, | ||
26 | z_streamp )); | ||
27 | |||
diff --git a/pwmanager/libcrypt/zlib/inffast.c b/pwmanager/libcrypt/zlib/inffast.c new file mode 100644 index 0000000..aa7f1d4 --- a/dev/null +++ b/pwmanager/libcrypt/zlib/inffast.c | |||
@@ -0,0 +1,183 @@ | |||
1 | /* inffast.c -- process literals and length/distance pairs fast | ||
2 | * Copyright (C) 1995-2002 Mark Adler | ||
3 | * For conditions of distribution and use, see copyright notice in zlib.h | ||
4 | */ | ||
5 | |||
6 | #include "zutil.h" | ||
7 | #include "inftrees.h" | ||
8 | #include "infblock.h" | ||
9 | #include "infcodes.h" | ||
10 | #include "infutil.h" | ||
11 | #include "inffast.h" | ||
12 | |||
13 | struct inflate_codes_state {int dummy;}; /* for buggy compilers */ | ||
14 | |||
15 | /* simplify the use of the inflate_huft type with some defines */ | ||
16 | #define exop word.what.Exop | ||
17 | #define bits word.what.Bits | ||
18 | |||
19 | /* macros for bit input with no checking and for returning unused bytes */ | ||
20 | #define GRABBITS(j) {while(k<(j)){b|=((uLong)NEXTBYTE)<<k;k+=8;}} | ||
21 | #define UNGRAB {c=z->avail_in-n;c=(k>>3)<c?k>>3:c;n+=c;p-=c;k-=c<<3;} | ||
22 | |||
23 | /* Called with number of bytes left to write in window at least 258 | ||
24 | (the maximum string length) and number of input bytes available | ||
25 | at least ten. The ten bytes are six bytes for the longest length/ | ||
26 | distance pair plus four bytes for overloading the bit buffer. */ | ||
27 | |||
28 | int inflate_fast(bl, bd, tl, td, s, z) | ||
29 | uInt bl, bd; | ||
30 | inflate_huft *tl; | ||
31 | inflate_huft *td; /* need separate declaration for Borland C++ */ | ||
32 | inflate_blocks_statef *s; | ||
33 | z_streamp z; | ||
34 | { | ||
35 | inflate_huft *t; /* temporary pointer */ | ||
36 | uInt e; /* extra bits or operation */ | ||
37 | uLong b; /* bit buffer */ | ||
38 | uInt k; /* bits in bit buffer */ | ||
39 | Bytef *p; /* input data pointer */ | ||
40 | uInt n; /* bytes available there */ | ||
41 | Bytef *q; /* output window write pointer */ | ||
42 | uInt m; /* bytes to end of window or read pointer */ | ||
43 | uInt ml; /* mask for literal/length tree */ | ||
44 | uInt md; /* mask for distance tree */ | ||
45 | uInt c; /* bytes to copy */ | ||
46 | uInt d; /* distance back to copy from */ | ||
47 | Bytef *r; /* copy source pointer */ | ||
48 | |||
49 | /* load input, output, bit values */ | ||
50 | LOAD | ||
51 | |||
52 | /* initialize masks */ | ||
53 | ml = inflate_mask[bl]; | ||
54 | md = inflate_mask[bd]; | ||
55 | |||
56 | /* do until not enough input or output space for fast loop */ | ||
57 | do { /* assume called with m >= 258 && n >= 10 */ | ||
58 | /* get literal/length code */ | ||
59 | GRABBITS(20) /* max bits for literal/length code */ | ||
60 | if ((e = (t = tl + ((uInt)b & ml))->exop) == 0) | ||
61 | { | ||
62 | DUMPBITS(t->bits) | ||
63 | Tracevv((stderr, t->base >= 0x20 && t->base < 0x7f ? | ||
64 | "inflate: * literal '%c'\n" : | ||
65 | "inflate: * literal 0x%02x\n", t->base)); | ||
66 | *q++ = (Byte)t->base; | ||
67 | m--; | ||
68 | continue; | ||
69 | } | ||
70 | do { | ||
71 | DUMPBITS(t->bits) | ||
72 | if (e & 16) | ||
73 | { | ||
74 | /* get extra bits for length */ | ||
75 | e &= 15; | ||
76 | c = t->base + ((uInt)b & inflate_mask[e]); | ||
77 | DUMPBITS(e) | ||
78 | Tracevv((stderr, "inflate: * length %u\n", c)); | ||
79 | |||
80 | /* decode distance base of block to copy */ | ||
81 | GRABBITS(15); /* max bits for distance code */ | ||
82 | e = (t = td + ((uInt)b & md))->exop; | ||
83 | do { | ||
84 | DUMPBITS(t->bits) | ||
85 | if (e & 16) | ||
86 | { | ||
87 | /* get extra bits to add to distance base */ | ||
88 | e &= 15; | ||
89 | GRABBITS(e) /* get extra bits (up to 13) */ | ||
90 | d = t->base + ((uInt)b & inflate_mask[e]); | ||
91 | DUMPBITS(e) | ||
92 | Tracevv((stderr, "inflate: * distance %u\n", d)); | ||
93 | |||
94 | /* do the copy */ | ||
95 | m -= c; | ||
96 | r = q - d; | ||
97 | if (r < s->window) /* wrap if needed */ | ||
98 | { | ||
99 | do { | ||
100 | r += s->end - s->window; /* force pointer in window */ | ||
101 | } while (r < s->window); /* covers invalid distances */ | ||
102 | e = s->end - r; | ||
103 | if (c > e) | ||
104 | { | ||
105 | c -= e; /* wrapped copy */ | ||
106 | do { | ||
107 | *q++ = *r++; | ||
108 | } while (--e); | ||
109 | r = s->window; | ||
110 | do { | ||
111 | *q++ = *r++; | ||
112 | } while (--c); | ||
113 | } | ||
114 | else /* normal copy */ | ||
115 | { | ||
116 | *q++ = *r++; c--; | ||
117 | *q++ = *r++; c--; | ||
118 | do { | ||
119 | *q++ = *r++; | ||
120 | } while (--c); | ||
121 | } | ||
122 | } | ||
123 | else /* normal copy */ | ||
124 | { | ||
125 | *q++ = *r++; c--; | ||
126 | *q++ = *r++; c--; | ||
127 | do { | ||
128 | *q++ = *r++; | ||
129 | } while (--c); | ||
130 | } | ||
131 | break; | ||
132 | } | ||
133 | else if ((e & 64) == 0) | ||
134 | { | ||
135 | t += t->base; | ||
136 | e = (t += ((uInt)b & inflate_mask[e]))->exop; | ||
137 | } | ||
138 | else | ||
139 | { | ||
140 | z->msg = (char*)"invalid distance code"; | ||
141 | UNGRAB | ||
142 | UPDATE | ||
143 | return Z_DATA_ERROR; | ||
144 | } | ||
145 | } while (1); | ||
146 | break; | ||
147 | } | ||
148 | if ((e & 64) == 0) | ||
149 | { | ||
150 | t += t->base; | ||
151 | if ((e = (t += ((uInt)b & inflate_mask[e]))->exop) == 0) | ||
152 | { | ||
153 | DUMPBITS(t->bits) | ||
154 | Tracevv((stderr, t->base >= 0x20 && t->base < 0x7f ? | ||
155 | "inflate: * literal '%c'\n" : | ||
156 | "inflate: * literal 0x%02x\n", t->base)); | ||
157 | *q++ = (Byte)t->base; | ||
158 | m--; | ||
159 | break; | ||
160 | } | ||
161 | } | ||
162 | else if (e & 32) | ||
163 | { | ||
164 | Tracevv((stderr, "inflate: * end of block\n")); | ||
165 | UNGRAB | ||
166 | UPDATE | ||
167 | return Z_STREAM_END; | ||
168 | } | ||
169 | else | ||
170 | { | ||
171 | z->msg = (char*)"invalid literal/length code"; | ||
172 | UNGRAB | ||
173 | UPDATE | ||
174 | return Z_DATA_ERROR; | ||
175 | } | ||
176 | } while (1); | ||
177 | } while (m >= 258 && n >= 10); | ||
178 | |||
179 | /* not enough input or output--restore pointers and return */ | ||
180 | UNGRAB | ||
181 | UPDATE | ||
182 | return Z_OK; | ||
183 | } | ||
diff --git a/pwmanager/libcrypt/zlib/inffast.h b/pwmanager/libcrypt/zlib/inffast.h new file mode 100644 index 0000000..a31a4bb --- a/dev/null +++ b/pwmanager/libcrypt/zlib/inffast.h | |||
@@ -0,0 +1,17 @@ | |||
1 | /* inffast.h -- header to use inffast.c | ||
2 | * Copyright (C) 1995-2002 Mark Adler | ||
3 | * For conditions of distribution and use, see copyright notice in zlib.h | ||
4 | */ | ||
5 | |||
6 | /* WARNING: this file should *not* be used by applications. It is | ||
7 | part of the implementation of the compression library and is | ||
8 | subject to change. Applications should only use zlib.h. | ||
9 | */ | ||
10 | |||
11 | extern int inflate_fast OF(( | ||
12 | uInt, | ||
13 | uInt, | ||
14 | inflate_huft *, | ||
15 | inflate_huft *, | ||
16 | inflate_blocks_statef *, | ||
17 | z_streamp )); | ||
diff --git a/pwmanager/libcrypt/zlib/inffixed.h b/pwmanager/libcrypt/zlib/inffixed.h new file mode 100644 index 0000000..77f7e76 --- a/dev/null +++ b/pwmanager/libcrypt/zlib/inffixed.h | |||
@@ -0,0 +1,151 @@ | |||
1 | /* inffixed.h -- table for decoding fixed codes | ||
2 | * Generated automatically by the maketree.c program | ||
3 | */ | ||
4 | |||
5 | /* WARNING: this file should *not* be used by applications. It is | ||
6 | part of the implementation of the compression library and is | ||
7 | subject to change. Applications should only use zlib.h. | ||
8 | */ | ||
9 | |||
10 | local uInt fixed_bl = 9; | ||
11 | local uInt fixed_bd = 5; | ||
12 | local inflate_huft fixed_tl[] = { | ||
13 | {{{96,7}},256}, {{{0,8}},80}, {{{0,8}},16}, {{{84,8}},115}, | ||
14 | {{{82,7}},31}, {{{0,8}},112}, {{{0,8}},48}, {{{0,9}},192}, | ||
15 | {{{80,7}},10}, {{{0,8}},96}, {{{0,8}},32}, {{{0,9}},160}, | ||
16 | {{{0,8}},0}, {{{0,8}},128}, {{{0,8}},64}, {{{0,9}},224}, | ||
17 | {{{80,7}},6}, {{{0,8}},88}, {{{0,8}},24}, {{{0,9}},144}, | ||
18 | {{{83,7}},59}, {{{0,8}},120}, {{{0,8}},56}, {{{0,9}},208}, | ||
19 | {{{81,7}},17}, {{{0,8}},104}, {{{0,8}},40}, {{{0,9}},176}, | ||
20 | {{{0,8}},8}, {{{0,8}},136}, {{{0,8}},72}, {{{0,9}},240}, | ||
21 | {{{80,7}},4}, {{{0,8}},84}, {{{0,8}},20}, {{{85,8}},227}, | ||
22 | {{{83,7}},43}, {{{0,8}},116}, {{{0,8}},52}, {{{0,9}},200}, | ||
23 | {{{81,7}},13}, {{{0,8}},100}, {{{0,8}},36}, {{{0,9}},168}, | ||
24 | {{{0,8}},4}, {{{0,8}},132}, {{{0,8}},68}, {{{0,9}},232}, | ||
25 | {{{80,7}},8}, {{{0,8}},92}, {{{0,8}},28}, {{{0,9}},152}, | ||
26 | {{{84,7}},83}, {{{0,8}},124}, {{{0,8}},60}, {{{0,9}},216}, | ||
27 | {{{82,7}},23}, {{{0,8}},108}, {{{0,8}},44}, {{{0,9}},184}, | ||
28 | {{{0,8}},12}, {{{0,8}},140}, {{{0,8}},76}, {{{0,9}},248}, | ||
29 | {{{80,7}},3}, {{{0,8}},82}, {{{0,8}},18}, {{{85,8}},163}, | ||
30 | {{{83,7}},35}, {{{0,8}},114}, {{{0,8}},50}, {{{0,9}},196}, | ||
31 | {{{81,7}},11}, {{{0,8}},98}, {{{0,8}},34}, {{{0,9}},164}, | ||
32 | {{{0,8}},2}, {{{0,8}},130}, {{{0,8}},66}, {{{0,9}},228}, | ||
33 | {{{80,7}},7}, {{{0,8}},90}, {{{0,8}},26}, {{{0,9}},148}, | ||
34 | {{{84,7}},67}, {{{0,8}},122}, {{{0,8}},58}, {{{0,9}},212}, | ||
35 | {{{82,7}},19}, {{{0,8}},106}, {{{0,8}},42}, {{{0,9}},180}, | ||
36 | {{{0,8}},10}, {{{0,8}},138}, {{{0,8}},74}, {{{0,9}},244}, | ||
37 | {{{80,7}},5}, {{{0,8}},86}, {{{0,8}},22}, {{{192,8}},0}, | ||
38 | {{{83,7}},51}, {{{0,8}},118}, {{{0,8}},54}, {{{0,9}},204}, | ||
39 | {{{81,7}},15}, {{{0,8}},102}, {{{0,8}},38}, {{{0,9}},172}, | ||
40 | {{{0,8}},6}, {{{0,8}},134}, {{{0,8}},70}, {{{0,9}},236}, | ||
41 | {{{80,7}},9}, {{{0,8}},94}, {{{0,8}},30}, {{{0,9}},156}, | ||
42 | {{{84,7}},99}, {{{0,8}},126}, {{{0,8}},62}, {{{0,9}},220}, | ||
43 | {{{82,7}},27}, {{{0,8}},110}, {{{0,8}},46}, {{{0,9}},188}, | ||
44 | {{{0,8}},14}, {{{0,8}},142}, {{{0,8}},78}, {{{0,9}},252}, | ||
45 | {{{96,7}},256}, {{{0,8}},81}, {{{0,8}},17}, {{{85,8}},131}, | ||
46 | {{{82,7}},31}, {{{0,8}},113}, {{{0,8}},49}, {{{0,9}},194}, | ||
47 | {{{80,7}},10}, {{{0,8}},97}, {{{0,8}},33}, {{{0,9}},162}, | ||
48 | {{{0,8}},1}, {{{0,8}},129}, {{{0,8}},65}, {{{0,9}},226}, | ||
49 | {{{80,7}},6}, {{{0,8}},89}, {{{0,8}},25}, {{{0,9}},146}, | ||
50 | {{{83,7}},59}, {{{0,8}},121}, {{{0,8}},57}, {{{0,9}},210}, | ||
51 | {{{81,7}},17}, {{{0,8}},105}, {{{0,8}},41}, {{{0,9}},178}, | ||
52 | {{{0,8}},9}, {{{0,8}},137}, {{{0,8}},73}, {{{0,9}},242}, | ||
53 | {{{80,7}},4}, {{{0,8}},85}, {{{0,8}},21}, {{{80,8}},258}, | ||
54 | {{{83,7}},43}, {{{0,8}},117}, {{{0,8}},53}, {{{0,9}},202}, | ||
55 | {{{81,7}},13}, {{{0,8}},101}, {{{0,8}},37}, {{{0,9}},170}, | ||
56 | {{{0,8}},5}, {{{0,8}},133}, {{{0,8}},69}, {{{0,9}},234}, | ||
57 | {{{80,7}},8}, {{{0,8}},93}, {{{0,8}},29}, {{{0,9}},154}, | ||
58 | {{{84,7}},83}, {{{0,8}},125}, {{{0,8}},61}, {{{0,9}},218}, | ||
59 | {{{82,7}},23}, {{{0,8}},109}, {{{0,8}},45}, {{{0,9}},186}, | ||
60 | {{{0,8}},13}, {{{0,8}},141}, {{{0,8}},77}, {{{0,9}},250}, | ||
61 | {{{80,7}},3}, {{{0,8}},83}, {{{0,8}},19}, {{{85,8}},195}, | ||
62 | {{{83,7}},35}, {{{0,8}},115}, {{{0,8}},51}, {{{0,9}},198}, | ||
63 | {{{81,7}},11}, {{{0,8}},99}, {{{0,8}},35}, {{{0,9}},166}, | ||
64 | {{{0,8}},3}, {{{0,8}},131}, {{{0,8}},67}, {{{0,9}},230}, | ||
65 | {{{80,7}},7}, {{{0,8}},91}, {{{0,8}},27}, {{{0,9}},150}, | ||
66 | {{{84,7}},67}, {{{0,8}},123}, {{{0,8}},59}, {{{0,9}},214}, | ||
67 | {{{82,7}},19}, {{{0,8}},107}, {{{0,8}},43}, {{{0,9}},182}, | ||
68 | {{{0,8}},11}, {{{0,8}},139}, {{{0,8}},75}, {{{0,9}},246}, | ||
69 | {{{80,7}},5}, {{{0,8}},87}, {{{0,8}},23}, {{{192,8}},0}, | ||
70 | {{{83,7}},51}, {{{0,8}},119}, {{{0,8}},55}, {{{0,9}},206}, | ||
71 | {{{81,7}},15}, {{{0,8}},103}, {{{0,8}},39}, {{{0,9}},174}, | ||
72 | {{{0,8}},7}, {{{0,8}},135}, {{{0,8}},71}, {{{0,9}},238}, | ||
73 | {{{80,7}},9}, {{{0,8}},95}, {{{0,8}},31}, {{{0,9}},158}, | ||
74 | {{{84,7}},99}, {{{0,8}},127}, {{{0,8}},63}, {{{0,9}},222}, | ||
75 | {{{82,7}},27}, {{{0,8}},111}, {{{0,8}},47}, {{{0,9}},190}, | ||
76 | {{{0,8}},15}, {{{0,8}},143}, {{{0,8}},79}, {{{0,9}},254}, | ||
77 | {{{96,7}},256}, {{{0,8}},80}, {{{0,8}},16}, {{{84,8}},115}, | ||
78 | {{{82,7}},31}, {{{0,8}},112}, {{{0,8}},48}, {{{0,9}},193}, | ||
79 | {{{80,7}},10}, {{{0,8}},96}, {{{0,8}},32}, {{{0,9}},161}, | ||
80 | {{{0,8}},0}, {{{0,8}},128}, {{{0,8}},64}, {{{0,9}},225}, | ||
81 | {{{80,7}},6}, {{{0,8}},88}, {{{0,8}},24}, {{{0,9}},145}, | ||
82 | {{{83,7}},59}, {{{0,8}},120}, {{{0,8}},56}, {{{0,9}},209}, | ||
83 | {{{81,7}},17}, {{{0,8}},104}, {{{0,8}},40}, {{{0,9}},177}, | ||
84 | {{{0,8}},8}, {{{0,8}},136}, {{{0,8}},72}, {{{0,9}},241}, | ||
85 | {{{80,7}},4}, {{{0,8}},84}, {{{0,8}},20}, {{{85,8}},227}, | ||
86 | {{{83,7}},43}, {{{0,8}},116}, {{{0,8}},52}, {{{0,9}},201}, | ||
87 | {{{81,7}},13}, {{{0,8}},100}, {{{0,8}},36}, {{{0,9}},169}, | ||
88 | {{{0,8}},4}, {{{0,8}},132}, {{{0,8}},68}, {{{0,9}},233}, | ||
89 | {{{80,7}},8}, {{{0,8}},92}, {{{0,8}},28}, {{{0,9}},153}, | ||
90 | {{{84,7}},83}, {{{0,8}},124}, {{{0,8}},60}, {{{0,9}},217}, | ||
91 | {{{82,7}},23}, {{{0,8}},108}, {{{0,8}},44}, {{{0,9}},185}, | ||
92 | {{{0,8}},12}, {{{0,8}},140}, {{{0,8}},76}, {{{0,9}},249}, | ||
93 | {{{80,7}},3}, {{{0,8}},82}, {{{0,8}},18}, {{{85,8}},163}, | ||
94 | {{{83,7}},35}, {{{0,8}},114}, {{{0,8}},50}, {{{0,9}},197}, | ||
95 | {{{81,7}},11}, {{{0,8}},98}, {{{0,8}},34}, {{{0,9}},165}, | ||
96 | {{{0,8}},2}, {{{0,8}},130}, {{{0,8}},66}, {{{0,9}},229}, | ||
97 | {{{80,7}},7}, {{{0,8}},90}, {{{0,8}},26}, {{{0,9}},149}, | ||
98 | {{{84,7}},67}, {{{0,8}},122}, {{{0,8}},58}, {{{0,9}},213}, | ||
99 | {{{82,7}},19}, {{{0,8}},106}, {{{0,8}},42}, {{{0,9}},181}, | ||
100 | {{{0,8}},10}, {{{0,8}},138}, {{{0,8}},74}, {{{0,9}},245}, | ||
101 | {{{80,7}},5}, {{{0,8}},86}, {{{0,8}},22}, {{{192,8}},0}, | ||
102 | {{{83,7}},51}, {{{0,8}},118}, {{{0,8}},54}, {{{0,9}},205}, | ||
103 | {{{81,7}},15}, {{{0,8}},102}, {{{0,8}},38}, {{{0,9}},173}, | ||
104 | {{{0,8}},6}, {{{0,8}},134}, {{{0,8}},70}, {{{0,9}},237}, | ||
105 | {{{80,7}},9}, {{{0,8}},94}, {{{0,8}},30}, {{{0,9}},157}, | ||
106 | {{{84,7}},99}, {{{0,8}},126}, {{{0,8}},62}, {{{0,9}},221}, | ||
107 | {{{82,7}},27}, {{{0,8}},110}, {{{0,8}},46}, {{{0,9}},189}, | ||
108 | {{{0,8}},14}, {{{0,8}},142}, {{{0,8}},78}, {{{0,9}},253}, | ||
109 | {{{96,7}},256}, {{{0,8}},81}, {{{0,8}},17}, {{{85,8}},131}, | ||
110 | {{{82,7}},31}, {{{0,8}},113}, {{{0,8}},49}, {{{0,9}},195}, | ||
111 | {{{80,7}},10}, {{{0,8}},97}, {{{0,8}},33}, {{{0,9}},163}, | ||
112 | {{{0,8}},1}, {{{0,8}},129}, {{{0,8}},65}, {{{0,9}},227}, | ||
113 | {{{80,7}},6}, {{{0,8}},89}, {{{0,8}},25}, {{{0,9}},147}, | ||
114 | {{{83,7}},59}, {{{0,8}},121}, {{{0,8}},57}, {{{0,9}},211}, | ||
115 | {{{81,7}},17}, {{{0,8}},105}, {{{0,8}},41}, {{{0,9}},179}, | ||
116 | {{{0,8}},9}, {{{0,8}},137}, {{{0,8}},73}, {{{0,9}},243}, | ||
117 | {{{80,7}},4}, {{{0,8}},85}, {{{0,8}},21}, {{{80,8}},258}, | ||
118 | {{{83,7}},43}, {{{0,8}},117}, {{{0,8}},53}, {{{0,9}},203}, | ||
119 | {{{81,7}},13}, {{{0,8}},101}, {{{0,8}},37}, {{{0,9}},171}, | ||
120 | {{{0,8}},5}, {{{0,8}},133}, {{{0,8}},69}, {{{0,9}},235}, | ||
121 | {{{80,7}},8}, {{{0,8}},93}, {{{0,8}},29}, {{{0,9}},155}, | ||
122 | {{{84,7}},83}, {{{0,8}},125}, {{{0,8}},61}, {{{0,9}},219}, | ||
123 | {{{82,7}},23}, {{{0,8}},109}, {{{0,8}},45}, {{{0,9}},187}, | ||
124 | {{{0,8}},13}, {{{0,8}},141}, {{{0,8}},77}, {{{0,9}},251}, | ||
125 | {{{80,7}},3}, {{{0,8}},83}, {{{0,8}},19}, {{{85,8}},195}, | ||
126 | {{{83,7}},35}, {{{0,8}},115}, {{{0,8}},51}, {{{0,9}},199}, | ||
127 | {{{81,7}},11}, {{{0,8}},99}, {{{0,8}},35}, {{{0,9}},167}, | ||
128 | {{{0,8}},3}, {{{0,8}},131}, {{{0,8}},67}, {{{0,9}},231}, | ||
129 | {{{80,7}},7}, {{{0,8}},91}, {{{0,8}},27}, {{{0,9}},151}, | ||
130 | {{{84,7}},67}, {{{0,8}},123}, {{{0,8}},59}, {{{0,9}},215}, | ||
131 | {{{82,7}},19}, {{{0,8}},107}, {{{0,8}},43}, {{{0,9}},183}, | ||
132 | {{{0,8}},11}, {{{0,8}},139}, {{{0,8}},75}, {{{0,9}},247}, | ||
133 | {{{80,7}},5}, {{{0,8}},87}, {{{0,8}},23}, {{{192,8}},0}, | ||
134 | {{{83,7}},51}, {{{0,8}},119}, {{{0,8}},55}, {{{0,9}},207}, | ||
135 | {{{81,7}},15}, {{{0,8}},103}, {{{0,8}},39}, {{{0,9}},175}, | ||
136 | {{{0,8}},7}, {{{0,8}},135}, {{{0,8}},71}, {{{0,9}},239}, | ||
137 | {{{80,7}},9}, {{{0,8}},95}, {{{0,8}},31}, {{{0,9}},159}, | ||
138 | {{{84,7}},99}, {{{0,8}},127}, {{{0,8}},63}, {{{0,9}},223}, | ||
139 | {{{82,7}},27}, {{{0,8}},111}, {{{0,8}},47}, {{{0,9}},191}, | ||
140 | {{{0,8}},15}, {{{0,8}},143}, {{{0,8}},79}, {{{0,9}},255} | ||
141 | }; | ||
142 | local inflate_huft fixed_td[] = { | ||
143 | {{{80,5}},1}, {{{87,5}},257}, {{{83,5}},17}, {{{91,5}},4097}, | ||
144 | {{{81,5}},5}, {{{89,5}},1025}, {{{85,5}},65}, {{{93,5}},16385}, | ||
145 | {{{80,5}},3}, {{{88,5}},513}, {{{84,5}},33}, {{{92,5}},8193}, | ||
146 | {{{82,5}},9}, {{{90,5}},2049}, {{{86,5}},129}, {{{192,5}},24577}, | ||
147 | {{{80,5}},2}, {{{87,5}},385}, {{{83,5}},25}, {{{91,5}},6145}, | ||
148 | {{{81,5}},7}, {{{89,5}},1537}, {{{85,5}},97}, {{{93,5}},24577}, | ||
149 | {{{80,5}},4}, {{{88,5}},769}, {{{84,5}},49}, {{{92,5}},12289}, | ||
150 | {{{82,5}},13}, {{{90,5}},3073}, {{{86,5}},193}, {{{192,5}},24577} | ||
151 | }; | ||
diff --git a/pwmanager/libcrypt/zlib/inflate.c b/pwmanager/libcrypt/zlib/inflate.c new file mode 100644 index 0000000..dfb2e86 --- a/dev/null +++ b/pwmanager/libcrypt/zlib/inflate.c | |||
@@ -0,0 +1,366 @@ | |||
1 | /* inflate.c -- zlib interface to inflate modules | ||
2 | * Copyright (C) 1995-2002 Mark Adler | ||
3 | * For conditions of distribution and use, see copyright notice in zlib.h | ||
4 | */ | ||
5 | |||
6 | #include "zutil.h" | ||
7 | #include "infblock.h" | ||
8 | |||
9 | struct inflate_blocks_state {int dummy;}; /* for buggy compilers */ | ||
10 | |||
11 | typedef enum { | ||
12 | METHOD, /* waiting for method byte */ | ||
13 | FLAG, /* waiting for flag byte */ | ||
14 | DICT4, /* four dictionary check bytes to go */ | ||
15 | DICT3, /* three dictionary check bytes to go */ | ||
16 | DICT2, /* two dictionary check bytes to go */ | ||
17 | DICT1, /* one dictionary check byte to go */ | ||
18 | DICT0, /* waiting for inflateSetDictionary */ | ||
19 | BLOCKS, /* decompressing blocks */ | ||
20 | CHECK4, /* four check bytes to go */ | ||
21 | CHECK3, /* three check bytes to go */ | ||
22 | CHECK2, /* two check bytes to go */ | ||
23 | CHECK1, /* one check byte to go */ | ||
24 | DONE, /* finished check, done */ | ||
25 | BAD} /* got an error--stay here */ | ||
26 | inflate_mode; | ||
27 | |||
28 | /* inflate private state */ | ||
29 | struct internal_state { | ||
30 | |||
31 | /* mode */ | ||
32 | inflate_mode mode; /* current inflate mode */ | ||
33 | |||
34 | /* mode dependent information */ | ||
35 | union { | ||
36 | uInt method; /* if FLAGS, method byte */ | ||
37 | struct { | ||
38 | uLong was; /* computed check value */ | ||
39 | uLong need; /* stream check value */ | ||
40 | } check; /* if CHECK, check values to compare */ | ||
41 | uInt marker; /* if BAD, inflateSync's marker bytes count */ | ||
42 | } sub; /* submode */ | ||
43 | |||
44 | /* mode independent information */ | ||
45 | int nowrap; /* flag for no wrapper */ | ||
46 | uInt wbits; /* log2(window size) (8..15, defaults to 15) */ | ||
47 | inflate_blocks_statef | ||
48 | *blocks; /* current inflate_blocks state */ | ||
49 | |||
50 | }; | ||
51 | |||
52 | |||
53 | int ZEXPORT inflateReset(z) | ||
54 | z_streamp z; | ||
55 | { | ||
56 | if (z == Z_NULL || z->state == Z_NULL) | ||
57 | return Z_STREAM_ERROR; | ||
58 | z->total_in = z->total_out = 0; | ||
59 | z->msg = Z_NULL; | ||
60 | z->state->mode = z->state->nowrap ? BLOCKS : METHOD; | ||
61 | inflate_blocks_reset(z->state->blocks, z, Z_NULL); | ||
62 | Tracev((stderr, "inflate: reset\n")); | ||
63 | return Z_OK; | ||
64 | } | ||
65 | |||
66 | |||
67 | int ZEXPORT inflateEnd(z) | ||
68 | z_streamp z; | ||
69 | { | ||
70 | if (z == Z_NULL || z->state == Z_NULL || z->zfree == Z_NULL) | ||
71 | return Z_STREAM_ERROR; | ||
72 | if (z->state->blocks != Z_NULL) | ||
73 | inflate_blocks_free(z->state->blocks, z); | ||
74 | ZFREE(z, z->state); | ||
75 | z->state = Z_NULL; | ||
76 | Tracev((stderr, "inflate: end\n")); | ||
77 | return Z_OK; | ||
78 | } | ||
79 | |||
80 | |||
81 | int ZEXPORT inflateInit2_(z, w, version, stream_size) | ||
82 | z_streamp z; | ||
83 | int w; | ||
84 | const char *version; | ||
85 | int stream_size; | ||
86 | { | ||
87 | if (version == Z_NULL || version[0] != ZLIB_VERSION[0] || | ||
88 | stream_size != sizeof(z_stream)) | ||
89 | return Z_VERSION_ERROR; | ||
90 | |||
91 | /* initialize state */ | ||
92 | if (z == Z_NULL) | ||
93 | return Z_STREAM_ERROR; | ||
94 | z->msg = Z_NULL; | ||
95 | if (z->zalloc == Z_NULL) | ||
96 | { | ||
97 | z->zalloc = zcalloc; | ||
98 | z->opaque = (voidpf)0; | ||
99 | } | ||
100 | if (z->zfree == Z_NULL) z->zfree = zcfree; | ||
101 | if ((z->state = (struct internal_state FAR *) | ||
102 | ZALLOC(z,1,sizeof(struct internal_state))) == Z_NULL) | ||
103 | return Z_MEM_ERROR; | ||
104 | z->state->blocks = Z_NULL; | ||
105 | |||
106 | /* handle undocumented nowrap option (no zlib header or check) */ | ||
107 | z->state->nowrap = 0; | ||
108 | if (w < 0) | ||
109 | { | ||
110 | w = - w; | ||
111 | z->state->nowrap = 1; | ||
112 | } | ||
113 | |||
114 | /* set window size */ | ||
115 | if (w < 8 || w > 15) | ||
116 | { | ||
117 | inflateEnd(z); | ||
118 | return Z_STREAM_ERROR; | ||
119 | } | ||
120 | z->state->wbits = (uInt)w; | ||
121 | |||
122 | /* create inflate_blocks state */ | ||
123 | if ((z->state->blocks = | ||
124 | inflate_blocks_new(z, z->state->nowrap ? Z_NULL : adler32, (uInt)1 << w)) | ||
125 | == Z_NULL) | ||
126 | { | ||
127 | inflateEnd(z); | ||
128 | return Z_MEM_ERROR; | ||
129 | } | ||
130 | Tracev((stderr, "inflate: allocated\n")); | ||
131 | |||
132 | /* reset state */ | ||
133 | inflateReset(z); | ||
134 | return Z_OK; | ||
135 | } | ||
136 | |||
137 | |||
138 | int ZEXPORT inflateInit_(z, version, stream_size) | ||
139 | z_streamp z; | ||
140 | const char *version; | ||
141 | int stream_size; | ||
142 | { | ||
143 | return inflateInit2_(z, DEF_WBITS, version, stream_size); | ||
144 | } | ||
145 | |||
146 | |||
147 | #define NEEDBYTE {if(z->avail_in==0)return r;r=f;} | ||
148 | #define NEXTBYTE (z->avail_in--,z->total_in++,*z->next_in++) | ||
149 | |||
150 | int ZEXPORT inflate(z, f) | ||
151 | z_streamp z; | ||
152 | int f; | ||
153 | { | ||
154 | int r; | ||
155 | uInt b; | ||
156 | |||
157 | if (z == Z_NULL || z->state == Z_NULL || z->next_in == Z_NULL) | ||
158 | return Z_STREAM_ERROR; | ||
159 | f = f == Z_FINISH ? Z_BUF_ERROR : Z_OK; | ||
160 | r = Z_BUF_ERROR; | ||
161 | while (1) switch (z->state->mode) | ||
162 | { | ||
163 | case METHOD: | ||
164 | NEEDBYTE | ||
165 | if (((z->state->sub.method = NEXTBYTE) & 0xf) != Z_DEFLATED) | ||
166 | { | ||
167 | z->state->mode = BAD; | ||
168 | z->msg = (char*)"unknown compression method"; | ||
169 | z->state->sub.marker = 5; /* can't try inflateSync */ | ||
170 | break; | ||
171 | } | ||
172 | if ((z->state->sub.method >> 4) + 8 > z->state->wbits) | ||
173 | { | ||
174 | z->state->mode = BAD; | ||
175 | z->msg = (char*)"invalid window size"; | ||
176 | z->state->sub.marker = 5; /* can't try inflateSync */ | ||
177 | break; | ||
178 | } | ||
179 | z->state->mode = FLAG; | ||
180 | case FLAG: | ||
181 | NEEDBYTE | ||
182 | b = NEXTBYTE; | ||
183 | if (((z->state->sub.method << 8) + b) % 31) | ||
184 | { | ||
185 | z->state->mode = BAD; | ||
186 | z->msg = (char*)"incorrect header check"; | ||
187 | z->state->sub.marker = 5; /* can't try inflateSync */ | ||
188 | break; | ||
189 | } | ||
190 | Tracev((stderr, "inflate: zlib header ok\n")); | ||
191 | if (!(b & PRESET_DICT)) | ||
192 | { | ||
193 | z->state->mode = BLOCKS; | ||
194 | break; | ||
195 | } | ||
196 | z->state->mode = DICT4; | ||
197 | case DICT4: | ||
198 | NEEDBYTE | ||
199 | z->state->sub.check.need = (uLong)NEXTBYTE << 24; | ||
200 | z->state->mode = DICT3; | ||
201 | case DICT3: | ||
202 | NEEDBYTE | ||
203 | z->state->sub.check.need += (uLong)NEXTBYTE << 16; | ||
204 | z->state->mode = DICT2; | ||
205 | case DICT2: | ||
206 | NEEDBYTE | ||
207 | z->state->sub.check.need += (uLong)NEXTBYTE << 8; | ||
208 | z->state->mode = DICT1; | ||
209 | case DICT1: | ||
210 | NEEDBYTE | ||
211 | z->state->sub.check.need += (uLong)NEXTBYTE; | ||
212 | z->adler = z->state->sub.check.need; | ||
213 | z->state->mode = DICT0; | ||
214 | return Z_NEED_DICT; | ||
215 | case DICT0: | ||
216 | z->state->mode = BAD; | ||
217 | z->msg = (char*)"need dictionary"; | ||
218 | z->state->sub.marker = 0; /* can try inflateSync */ | ||
219 | return Z_STREAM_ERROR; | ||
220 | case BLOCKS: | ||
221 | r = inflate_blocks(z->state->blocks, z, r); | ||
222 | if (r == Z_DATA_ERROR) | ||
223 | { | ||
224 | z->state->mode = BAD; | ||
225 | z->state->sub.marker = 0; /* can try inflateSync */ | ||
226 | break; | ||
227 | } | ||
228 | if (r == Z_OK) | ||
229 | r = f; | ||
230 | if (r != Z_STREAM_END) | ||
231 | return r; | ||
232 | r = f; | ||
233 | inflate_blocks_reset(z->state->blocks, z, &z->state->sub.check.was); | ||
234 | if (z->state->nowrap) | ||
235 | { | ||
236 | z->state->mode = DONE; | ||
237 | break; | ||
238 | } | ||
239 | z->state->mode = CHECK4; | ||
240 | case CHECK4: | ||
241 | NEEDBYTE | ||
242 | z->state->sub.check.need = (uLong)NEXTBYTE << 24; | ||
243 | z->state->mode = CHECK3; | ||
244 | case CHECK3: | ||
245 | NEEDBYTE | ||
246 | z->state->sub.check.need += (uLong)NEXTBYTE << 16; | ||
247 | z->state->mode = CHECK2; | ||
248 | case CHECK2: | ||
249 | NEEDBYTE | ||
250 | z->state->sub.check.need += (uLong)NEXTBYTE << 8; | ||
251 | z->state->mode = CHECK1; | ||
252 | case CHECK1: | ||
253 | NEEDBYTE | ||
254 | z->state->sub.check.need += (uLong)NEXTBYTE; | ||
255 | |||
256 | if (z->state->sub.check.was != z->state->sub.check.need) | ||
257 | { | ||
258 | z->state->mode = BAD; | ||
259 | z->msg = (char*)"incorrect data check"; | ||
260 | z->state->sub.marker = 5; /* can't try inflateSync */ | ||
261 | break; | ||
262 | } | ||
263 | Tracev((stderr, "inflate: zlib check ok\n")); | ||
264 | z->state->mode = DONE; | ||
265 | case DONE: | ||
266 | return Z_STREAM_END; | ||
267 | case BAD: | ||
268 | return Z_DATA_ERROR; | ||
269 | default: | ||
270 | return Z_STREAM_ERROR; | ||
271 | } | ||
272 | #ifdef NEED_DUMMY_RETURN | ||
273 | return Z_STREAM_ERROR; /* Some dumb compilers complain without this */ | ||
274 | #endif | ||
275 | } | ||
276 | |||
277 | |||
278 | int ZEXPORT inflateSetDictionary(z, dictionary, dictLength) | ||
279 | z_streamp z; | ||
280 | const Bytef *dictionary; | ||
281 | uInt dictLength; | ||
282 | { | ||
283 | uInt length = dictLength; | ||
284 | |||
285 | if (z == Z_NULL || z->state == Z_NULL || z->state->mode != DICT0) | ||
286 | return Z_STREAM_ERROR; | ||
287 | |||
288 | if (adler32(1L, dictionary, dictLength) != z->adler) return Z_DATA_ERROR; | ||
289 | z->adler = 1L; | ||
290 | |||
291 | if (length >= ((uInt)1<<z->state->wbits)) | ||
292 | { | ||
293 | length = (1<<z->state->wbits)-1; | ||
294 | dictionary += dictLength - length; | ||
295 | } | ||
296 | inflate_set_dictionary(z->state->blocks, dictionary, length); | ||
297 | z->state->mode = BLOCKS; | ||
298 | return Z_OK; | ||
299 | } | ||
300 | |||
301 | |||
302 | int ZEXPORT inflateSync(z) | ||
303 | z_streamp z; | ||
304 | { | ||
305 | uInt n; /* number of bytes to look at */ | ||
306 | Bytef *p; /* pointer to bytes */ | ||
307 | uInt m; /* number of marker bytes found in a row */ | ||
308 | uLong r, w; /* temporaries to save total_in and total_out */ | ||
309 | |||
310 | /* set up */ | ||
311 | if (z == Z_NULL || z->state == Z_NULL) | ||
312 | return Z_STREAM_ERROR; | ||
313 | if (z->state->mode != BAD) | ||
314 | { | ||
315 | z->state->mode = BAD; | ||
316 | z->state->sub.marker = 0; | ||
317 | } | ||
318 | if ((n = z->avail_in) == 0) | ||
319 | return Z_BUF_ERROR; | ||
320 | p = z->next_in; | ||
321 | m = z->state->sub.marker; | ||
322 | |||
323 | /* search */ | ||
324 | while (n && m < 4) | ||
325 | { | ||
326 | static const Byte mark[4] = {0, 0, 0xff, 0xff}; | ||
327 | if (*p == mark[m]) | ||
328 | m++; | ||
329 | else if (*p) | ||
330 | m = 0; | ||
331 | else | ||
332 | m = 4 - m; | ||
333 | p++, n--; | ||
334 | } | ||
335 | |||
336 | /* restore */ | ||
337 | z->total_in += p - z->next_in; | ||
338 | z->next_in = p; | ||
339 | z->avail_in = n; | ||
340 | z->state->sub.marker = m; | ||
341 | |||
342 | /* return no joy or set up to restart on a new block */ | ||
343 | if (m != 4) | ||
344 | return Z_DATA_ERROR; | ||
345 | r = z->total_in; w = z->total_out; | ||
346 | inflateReset(z); | ||
347 | z->total_in = r; z->total_out = w; | ||
348 | z->state->mode = BLOCKS; | ||
349 | return Z_OK; | ||
350 | } | ||
351 | |||
352 | |||
353 | /* Returns true if inflate is currently at the end of a block generated | ||
354 | * by Z_SYNC_FLUSH or Z_FULL_FLUSH. This function is used by one PPP | ||
355 | * implementation to provide an additional safety check. PPP uses Z_SYNC_FLUSH | ||
356 | * but removes the length bytes of the resulting empty stored block. When | ||
357 | * decompressing, PPP checks that at the end of input packet, inflate is | ||
358 | * waiting for these length bytes. | ||
359 | */ | ||
360 | int ZEXPORT inflateSyncPoint(z) | ||
361 | z_streamp z; | ||
362 | { | ||
363 | if (z == Z_NULL || z->state == Z_NULL || z->state->blocks == Z_NULL) | ||
364 | return Z_STREAM_ERROR; | ||
365 | return inflate_blocks_sync_point(z->state->blocks); | ||
366 | } | ||
diff --git a/pwmanager/libcrypt/zlib/inftrees.c b/pwmanager/libcrypt/zlib/inftrees.c new file mode 100644 index 0000000..4c32ca3 --- a/dev/null +++ b/pwmanager/libcrypt/zlib/inftrees.c | |||
@@ -0,0 +1,454 @@ | |||
1 | /* inftrees.c -- generate Huffman trees for efficient decoding | ||
2 | * Copyright (C) 1995-2002 Mark Adler | ||
3 | * For conditions of distribution and use, see copyright notice in zlib.h | ||
4 | */ | ||
5 | |||
6 | #include "zutil.h" | ||
7 | #include "inftrees.h" | ||
8 | |||
9 | #if !defined(BUILDFIXED) && !defined(STDC) | ||
10 | # define BUILDFIXED /* non ANSI compilers may not accept inffixed.h */ | ||
11 | #endif | ||
12 | |||
13 | const char inflate_copyright[] = | ||
14 | " inflate 1.1.4 Copyright 1995-2002 Mark Adler "; | ||
15 | /* | ||
16 | If you use the zlib library in a product, an acknowledgment is welcome | ||
17 | in the documentation of your product. If for some reason you cannot | ||
18 | include such an acknowledgment, I would appreciate that you keep this | ||
19 | copyright string in the executable of your product. | ||
20 | */ | ||
21 | struct internal_state {int dummy;}; /* for buggy compilers */ | ||
22 | |||
23 | /* simplify the use of the inflate_huft type with some defines */ | ||
24 | #define exop word.what.Exop | ||
25 | #define bits word.what.Bits | ||
26 | |||
27 | |||
28 | local int huft_build OF(( | ||
29 | uIntf *, /* code lengths in bits */ | ||
30 | uInt, /* number of codes */ | ||
31 | uInt, /* number of "simple" codes */ | ||
32 | const uIntf *, /* list of base values for non-simple codes */ | ||
33 | const uIntf *, /* list of extra bits for non-simple codes */ | ||
34 | inflate_huft * FAR*,/* result: starting table */ | ||
35 | uIntf *, /* maximum lookup bits (returns actual) */ | ||
36 | inflate_huft *, /* space for trees */ | ||
37 | uInt *, /* hufts used in space */ | ||
38 | uIntf * )); /* space for values */ | ||
39 | |||
40 | /* Tables for deflate from PKZIP's appnote.txt. */ | ||
41 | local const uInt cplens[31] = { /* Copy lengths for literal codes 257..285 */ | ||
42 | 3, 4, 5, 6, 7, 8, 9, 10, 11, 13, 15, 17, 19, 23, 27, 31, | ||
43 | 35, 43, 51, 59, 67, 83, 99, 115, 131, 163, 195, 227, 258, 0, 0}; | ||
44 | /* see note #13 above about 258 */ | ||
45 | local const uInt cplext[31] = { /* Extra bits for literal codes 257..285 */ | ||
46 | 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 2, 2, 2, 2, | ||
47 | 3, 3, 3, 3, 4, 4, 4, 4, 5, 5, 5, 5, 0, 112, 112}; /* 112==invalid */ | ||
48 | local const uInt cpdist[30] = { /* Copy offsets for distance codes 0..29 */ | ||
49 | 1, 2, 3, 4, 5, 7, 9, 13, 17, 25, 33, 49, 65, 97, 129, 193, | ||
50 | 257, 385, 513, 769, 1025, 1537, 2049, 3073, 4097, 6145, | ||
51 | 8193, 12289, 16385, 24577}; | ||
52 | local const uInt cpdext[30] = { /* Extra bits for distance codes */ | ||
53 | 0, 0, 0, 0, 1, 1, 2, 2, 3, 3, 4, 4, 5, 5, 6, 6, | ||
54 | 7, 7, 8, 8, 9, 9, 10, 10, 11, 11, | ||
55 | 12, 12, 13, 13}; | ||
56 | |||
57 | /* | ||
58 | Huffman code decoding is performed using a multi-level table lookup. | ||
59 | The fastest way to decode is to simply build a lookup table whose | ||
60 | size is determined by the longest code. However, the time it takes | ||
61 | to build this table can also be a factor if the data being decoded | ||
62 | is not very long. The most common codes are necessarily the | ||
63 | shortest codes, so those codes dominate the decoding time, and hence | ||
64 | the speed. The idea is you can have a shorter table that decodes the | ||
65 | shorter, more probable codes, and then point to subsidiary tables for | ||
66 | the longer codes. The time it costs to decode the longer codes is | ||
67 | then traded against the time it takes to make longer tables. | ||
68 | |||
69 | This results of this trade are in the variables lbits and dbits | ||
70 | below. lbits is the number of bits the first level table for literal/ | ||
71 | length codes can decode in one step, and dbits is the same thing for | ||
72 | the distance codes. Subsequent tables are also less than or equal to | ||
73 | those sizes. These values may be adjusted either when all of the | ||
74 | codes are shorter than that, in which case the longest code length in | ||
75 | bits is used, or when the shortest code is *longer* than the requested | ||
76 | table size, in which case the length of the shortest code in bits is | ||
77 | used. | ||
78 | |||
79 | There are two different values for the two tables, since they code a | ||
80 | different number of possibilities each. The literal/length table | ||
81 | codes 286 possible values, or in a flat code, a little over eight | ||
82 | bits. The distance table codes 30 possible values, or a little less | ||
83 | than five bits, flat. The optimum values for speed end up being | ||
84 | about one bit more than those, so lbits is 8+1 and dbits is 5+1. | ||
85 | The optimum values may differ though from machine to machine, and | ||
86 | possibly even between compilers. Your mileage may vary. | ||
87 | */ | ||
88 | |||
89 | |||
90 | /* If BMAX needs to be larger than 16, then h and x[] should be uLong. */ | ||
91 | #define BMAX 15 /* maximum bit length of any code */ | ||
92 | |||
93 | local int huft_build(b, n, s, d, e, t, m, hp, hn, v) | ||
94 | uIntf *b; /* code lengths in bits (all assumed <= BMAX) */ | ||
95 | uInt n; /* number of codes (assumed <= 288) */ | ||
96 | uInt s; /* number of simple-valued codes (0..s-1) */ | ||
97 | const uIntf *d; /* list of base values for non-simple codes */ | ||
98 | const uIntf *e; /* list of extra bits for non-simple codes */ | ||
99 | inflate_huft * FAR *t; /* result: starting table */ | ||
100 | uIntf *m; /* maximum lookup bits, returns actual */ | ||
101 | inflate_huft *hp; /* space for trees */ | ||
102 | uInt *hn; /* hufts used in space */ | ||
103 | uIntf *v; /* working area: values in order of bit length */ | ||
104 | /* Given a list of code lengths and a maximum table size, make a set of | ||
105 | tables to decode that set of codes. Return Z_OK on success, Z_BUF_ERROR | ||
106 | if the given code set is incomplete (the tables are still built in this | ||
107 | case), or Z_DATA_ERROR if the input is invalid. */ | ||
108 | { | ||
109 | |||
110 | uInt a; /* counter for codes of length k */ | ||
111 | uInt c[BMAX+1]; /* bit length count table */ | ||
112 | uInt f; /* i repeats in table every f entries */ | ||
113 | int g; /* maximum code length */ | ||
114 | int h; /* table level */ | ||
115 | register uInt i; /* counter, current code */ | ||
116 | register uInt j; /* counter */ | ||
117 | register int k; /* number of bits in current code */ | ||
118 | int l; /* bits per table (returned in m) */ | ||
119 | uInt mask; /* (1 << w) - 1, to avoid cc -O bug on HP */ | ||
120 | register uIntf *p; /* pointer into c[], b[], or v[] */ | ||
121 | inflate_huft *q; /* points to current table */ | ||
122 | struct inflate_huft_s r; /* table entry for structure assignment */ | ||
123 | inflate_huft *u[BMAX]; /* table stack */ | ||
124 | register int w; /* bits before this table == (l * h) */ | ||
125 | uInt x[BMAX+1]; /* bit offsets, then code stack */ | ||
126 | uIntf *xp; /* pointer into x */ | ||
127 | int y; /* number of dummy codes added */ | ||
128 | uInt z; /* number of entries in current table */ | ||
129 | |||
130 | |||
131 | /* Generate counts for each bit length */ | ||
132 | p = c; | ||
133 | #define C0 *p++ = 0; | ||
134 | #define C2 C0 C0 C0 C0 | ||
135 | #define C4 C2 C2 C2 C2 | ||
136 | C4 /* clear c[]--assume BMAX+1 is 16 */ | ||
137 | p = b; i = n; | ||
138 | do { | ||
139 | c[*p++]++; /* assume all entries <= BMAX */ | ||
140 | } while (--i); | ||
141 | if (c[0] == n) /* null input--all zero length codes */ | ||
142 | { | ||
143 | *t = (inflate_huft *)Z_NULL; | ||
144 | *m = 0; | ||
145 | return Z_OK; | ||
146 | } | ||
147 | |||
148 | |||
149 | /* Find minimum and maximum length, bound *m by those */ | ||
150 | l = *m; | ||
151 | for (j = 1; j <= BMAX; j++) | ||
152 | if (c[j]) | ||
153 | break; | ||
154 | k = j; /* minimum code length */ | ||
155 | if ((uInt)l < j) | ||
156 | l = j; | ||
157 | for (i = BMAX; i; i--) | ||
158 | if (c[i]) | ||
159 | break; | ||
160 | g = i; /* maximum code length */ | ||
161 | if ((uInt)l > i) | ||
162 | l = i; | ||
163 | *m = l; | ||
164 | |||
165 | |||
166 | /* Adjust last length count to fill out codes, if needed */ | ||
167 | for (y = 1 << j; j < i; j++, y <<= 1) | ||
168 | if ((y -= c[j]) < 0) | ||
169 | return Z_DATA_ERROR; | ||
170 | if ((y -= c[i]) < 0) | ||
171 | return Z_DATA_ERROR; | ||
172 | c[i] += y; | ||
173 | |||
174 | |||
175 | /* Generate starting offsets into the value table for each length */ | ||
176 | x[1] = j = 0; | ||
177 | p = c + 1; xp = x + 2; | ||
178 | while (--i) { /* note that i == g from above */ | ||
179 | *xp++ = (j += *p++); | ||
180 | } | ||
181 | |||
182 | |||
183 | /* Make a table of values in order of bit lengths */ | ||
184 | p = b; i = 0; | ||
185 | do { | ||
186 | if ((j = *p++) != 0) | ||
187 | v[x[j]++] = i; | ||
188 | } while (++i < n); | ||
189 | n = x[g]; /* set n to length of v */ | ||
190 | |||
191 | |||
192 | /* Generate the Huffman codes and for each, make the table entries */ | ||
193 | x[0] = i = 0; /* first Huffman code is zero */ | ||
194 | p = v; /* grab values in bit order */ | ||
195 | h = -1; /* no tables yet--level -1 */ | ||
196 | w = -l; /* bits decoded == (l * h) */ | ||
197 | u[0] = (inflate_huft *)Z_NULL; /* just to keep compilers happy */ | ||
198 | q = (inflate_huft *)Z_NULL; /* ditto */ | ||
199 | z = 0; /* ditto */ | ||
200 | |||
201 | /* go through the bit lengths (k already is bits in shortest code) */ | ||
202 | for (; k <= g; k++) | ||
203 | { | ||
204 | a = c[k]; | ||
205 | while (a--) | ||
206 | { | ||
207 | /* here i is the Huffman code of length k bits for value *p */ | ||
208 | /* make tables up to required level */ | ||
209 | while (k > w + l) | ||
210 | { | ||
211 | h++; | ||
212 | w += l; /* previous table always l bits */ | ||
213 | |||
214 | /* compute minimum size table less than or equal to l bits */ | ||
215 | z = g - w; | ||
216 | z = z > (uInt)l ? l : z; /* table size upper limit */ | ||
217 | if ((f = 1 << (j = k - w)) > a + 1) /* try a k-w bit table */ | ||
218 | { /* too few codes for k-w bit table */ | ||
219 | f -= a + 1; /* deduct codes from patterns left */ | ||
220 | xp = c + k; | ||
221 | if (j < z) | ||
222 | while (++j < z) /* try smaller tables up to z bits */ | ||
223 | { | ||
224 | if ((f <<= 1) <= *++xp) | ||
225 | break; /* enough codes to use up j bits */ | ||
226 | f -= *xp; /* else deduct codes from patterns */ | ||
227 | } | ||
228 | } | ||
229 | z = 1 << j; /* table entries for j-bit table */ | ||
230 | |||
231 | /* allocate new table */ | ||
232 | if (*hn + z > MANY) /* (note: doesn't matter for fixed) */ | ||
233 | return Z_DATA_ERROR; /* overflow of MANY */ | ||
234 | u[h] = q = hp + *hn; | ||
235 | *hn += z; | ||
236 | |||
237 | /* connect to last table, if there is one */ | ||
238 | if (h) | ||
239 | { | ||
240 | x[h] = i; /* save pattern for backing up */ | ||
241 | r.bits = (Byte)l; /* bits to dump before this table */ | ||
242 | r.exop = (Byte)j; /* bits in this table */ | ||
243 | j = i >> (w - l); | ||
244 | r.base = (uInt)(q - u[h-1] - j); /* offset to this table */ | ||
245 | u[h-1][j] = r; /* connect to last table */ | ||
246 | } | ||
247 | else | ||
248 | *t = q; /* first table is returned result */ | ||
249 | } | ||
250 | |||
251 | /* set up table entry in r */ | ||
252 | r.bits = (Byte)(k - w); | ||
253 | if (p >= v + n) | ||
254 | r.exop = 128 + 64; /* out of values--invalid code */ | ||
255 | else if (*p < s) | ||
256 | { | ||
257 | r.exop = (Byte)(*p < 256 ? 0 : 32 + 64); /* 256 is end-of-block */ | ||
258 | r.base = *p++; /* simple code is just the value */ | ||
259 | } | ||
260 | else | ||
261 | { | ||
262 | r.exop = (Byte)(e[*p - s] + 16 + 64);/* non-simple--look up in lists */ | ||
263 | r.base = d[*p++ - s]; | ||
264 | } | ||
265 | |||
266 | /* fill code-like entries with r */ | ||
267 | f = 1 << (k - w); | ||
268 | for (j = i >> w; j < z; j += f) | ||
269 | q[j] = r; | ||
270 | |||
271 | /* backwards increment the k-bit code i */ | ||
272 | for (j = 1 << (k - 1); i & j; j >>= 1) | ||
273 | i ^= j; | ||
274 | i ^= j; | ||
275 | |||
276 | /* backup over finished tables */ | ||
277 | mask = (1 << w) - 1; /* needed on HP, cc -O bug */ | ||
278 | while ((i & mask) != x[h]) | ||
279 | { | ||
280 | h--; /* don't need to update q */ | ||
281 | w -= l; | ||
282 | mask = (1 << w) - 1; | ||
283 | } | ||
284 | } | ||
285 | } | ||
286 | |||
287 | |||
288 | /* Return Z_BUF_ERROR if we were given an incomplete table */ | ||
289 | return y != 0 && g != 1 ? Z_BUF_ERROR : Z_OK; | ||
290 | } | ||
291 | |||
292 | |||
293 | int inflate_trees_bits(c, bb, tb, hp, z) | ||
294 | uIntf *c; /* 19 code lengths */ | ||
295 | uIntf *bb; /* bits tree desired/actual depth */ | ||
296 | inflate_huft * FAR *tb; /* bits tree result */ | ||
297 | inflate_huft *hp; /* space for trees */ | ||
298 | z_streamp z; /* for messages */ | ||
299 | { | ||
300 | int r; | ||
301 | uInt hn = 0; /* hufts used in space */ | ||
302 | uIntf *v; /* work area for huft_build */ | ||
303 | |||
304 | if ((v = (uIntf*)ZALLOC(z, 19, sizeof(uInt))) == Z_NULL) | ||
305 | return Z_MEM_ERROR; | ||
306 | r = huft_build(c, 19, 19, (uIntf*)Z_NULL, (uIntf*)Z_NULL, | ||
307 | tb, bb, hp, &hn, v); | ||
308 | if (r == Z_DATA_ERROR) | ||
309 | z->msg = (char*)"oversubscribed dynamic bit lengths tree"; | ||
310 | else if (r == Z_BUF_ERROR || *bb == 0) | ||
311 | { | ||
312 | z->msg = (char*)"incomplete dynamic bit lengths tree"; | ||
313 | r = Z_DATA_ERROR; | ||
314 | } | ||
315 | ZFREE(z, v); | ||
316 | return r; | ||
317 | } | ||
318 | |||
319 | |||
320 | int inflate_trees_dynamic(nl, nd, c, bl, bd, tl, td, hp, z) | ||
321 | uInt nl; /* number of literal/length codes */ | ||
322 | uInt nd; /* number of distance codes */ | ||
323 | uIntf *c; /* that many (total) code lengths */ | ||
324 | uIntf *bl; /* literal desired/actual bit depth */ | ||
325 | uIntf *bd; /* distance desired/actual bit depth */ | ||
326 | inflate_huft * FAR *tl; /* literal/length tree result */ | ||
327 | inflate_huft * FAR *td; /* distance tree result */ | ||
328 | inflate_huft *hp; /* space for trees */ | ||
329 | z_streamp z; /* for messages */ | ||
330 | { | ||
331 | int r; | ||
332 | uInt hn = 0; /* hufts used in space */ | ||
333 | uIntf *v; /* work area for huft_build */ | ||
334 | |||
335 | /* allocate work area */ | ||
336 | if ((v = (uIntf*)ZALLOC(z, 288, sizeof(uInt))) == Z_NULL) | ||
337 | return Z_MEM_ERROR; | ||
338 | |||
339 | /* build literal/length tree */ | ||
340 | r = huft_build(c, nl, 257, cplens, cplext, tl, bl, hp, &hn, v); | ||
341 | if (r != Z_OK || *bl == 0) | ||
342 | { | ||
343 | if (r == Z_DATA_ERROR) | ||
344 | z->msg = (char*)"oversubscribed literal/length tree"; | ||
345 | else if (r != Z_MEM_ERROR) | ||
346 | { | ||
347 | z->msg = (char*)"incomplete literal/length tree"; | ||
348 | r = Z_DATA_ERROR; | ||
349 | } | ||
350 | ZFREE(z, v); | ||
351 | return r; | ||
352 | } | ||
353 | |||
354 | /* build distance tree */ | ||
355 | r = huft_build(c + nl, nd, 0, cpdist, cpdext, td, bd, hp, &hn, v); | ||
356 | if (r != Z_OK || (*bd == 0 && nl > 257)) | ||
357 | { | ||
358 | if (r == Z_DATA_ERROR) | ||
359 | z->msg = (char*)"oversubscribed distance tree"; | ||
360 | else if (r == Z_BUF_ERROR) { | ||
361 | #ifdef PKZIP_BUG_WORKAROUND | ||
362 | r = Z_OK; | ||
363 | } | ||
364 | #else | ||
365 | z->msg = (char*)"incomplete distance tree"; | ||
366 | r = Z_DATA_ERROR; | ||
367 | } | ||
368 | else if (r != Z_MEM_ERROR) | ||
369 | { | ||
370 | z->msg = (char*)"empty distance tree with lengths"; | ||
371 | r = Z_DATA_ERROR; | ||
372 | } | ||
373 | ZFREE(z, v); | ||
374 | return r; | ||
375 | #endif | ||
376 | } | ||
377 | |||
378 | /* done */ | ||
379 | ZFREE(z, v); | ||
380 | return Z_OK; | ||
381 | } | ||
382 | |||
383 | |||
384 | /* build fixed tables only once--keep them here */ | ||
385 | #ifdef BUILDFIXED | ||
386 | local int fixed_built = 0; | ||
387 | #define FIXEDH 544 /* number of hufts used by fixed tables */ | ||
388 | local inflate_huft fixed_mem[FIXEDH]; | ||
389 | local uInt fixed_bl; | ||
390 | local uInt fixed_bd; | ||
391 | local inflate_huft *fixed_tl; | ||
392 | local inflate_huft *fixed_td; | ||
393 | #else | ||
394 | #include "inffixed.h" | ||
395 | #endif | ||
396 | |||
397 | |||
398 | int inflate_trees_fixed(bl, bd, tl, td, z) | ||
399 | uIntf *bl; /* literal desired/actual bit depth */ | ||
400 | uIntf *bd; /* distance desired/actual bit depth */ | ||
401 | inflate_huft * FAR *tl; /* literal/length tree result */ | ||
402 | inflate_huft * FAR *td; /* distance tree result */ | ||
403 | z_streamp z; /* for memory allocation */ | ||
404 | { | ||
405 | #ifdef BUILDFIXED | ||
406 | /* build fixed tables if not already */ | ||
407 | if (!fixed_built) | ||
408 | { | ||
409 | int k; /* temporary variable */ | ||
410 | uInt f = 0; /* number of hufts used in fixed_mem */ | ||
411 | uIntf *c; /* length list for huft_build */ | ||
412 | uIntf *v; /* work area for huft_build */ | ||
413 | |||
414 | /* allocate memory */ | ||
415 | if ((c = (uIntf*)ZALLOC(z, 288, sizeof(uInt))) == Z_NULL) | ||
416 | return Z_MEM_ERROR; | ||
417 | if ((v = (uIntf*)ZALLOC(z, 288, sizeof(uInt))) == Z_NULL) | ||
418 | { | ||
419 | ZFREE(z, c); | ||
420 | return Z_MEM_ERROR; | ||
421 | } | ||
422 | |||
423 | /* literal table */ | ||
424 | for (k = 0; k < 144; k++) | ||
425 | c[k] = 8; | ||
426 | for (; k < 256; k++) | ||
427 | c[k] = 9; | ||
428 | for (; k < 280; k++) | ||
429 | c[k] = 7; | ||
430 | for (; k < 288; k++) | ||
431 | c[k] = 8; | ||
432 | fixed_bl = 9; | ||
433 | huft_build(c, 288, 257, cplens, cplext, &fixed_tl, &fixed_bl, | ||
434 | fixed_mem, &f, v); | ||
435 | |||
436 | /* distance table */ | ||
437 | for (k = 0; k < 30; k++) | ||
438 | c[k] = 5; | ||
439 | fixed_bd = 5; | ||
440 | huft_build(c, 30, 0, cpdist, cpdext, &fixed_td, &fixed_bd, | ||
441 | fixed_mem, &f, v); | ||
442 | |||
443 | /* done */ | ||
444 | ZFREE(z, v); | ||
445 | ZFREE(z, c); | ||
446 | fixed_built = 1; | ||
447 | } | ||
448 | #endif | ||
449 | *bl = fixed_bl; | ||
450 | *bd = fixed_bd; | ||
451 | *tl = fixed_tl; | ||
452 | *td = fixed_td; | ||
453 | return Z_OK; | ||
454 | } | ||
diff --git a/pwmanager/libcrypt/zlib/inftrees.h b/pwmanager/libcrypt/zlib/inftrees.h new file mode 100644 index 0000000..04b73b7 --- a/dev/null +++ b/pwmanager/libcrypt/zlib/inftrees.h | |||
@@ -0,0 +1,58 @@ | |||
1 | /* inftrees.h -- header to use inftrees.c | ||
2 | * Copyright (C) 1995-2002 Mark Adler | ||
3 | * For conditions of distribution and use, see copyright notice in zlib.h | ||
4 | */ | ||
5 | |||
6 | /* WARNING: this file should *not* be used by applications. It is | ||
7 | part of the implementation of the compression library and is | ||
8 | subject to change. Applications should only use zlib.h. | ||
9 | */ | ||
10 | |||
11 | /* Huffman code lookup table entry--this entry is four bytes for machines | ||
12 | that have 16-bit pointers (e.g. PC's in the small or medium model). */ | ||
13 | |||
14 | typedef struct inflate_huft_s FAR inflate_huft; | ||
15 | |||
16 | struct inflate_huft_s { | ||
17 | union { | ||
18 | struct { | ||
19 | Byte Exop; /* number of extra bits or operation */ | ||
20 | Byte Bits; /* number of bits in this code or subcode */ | ||
21 | } what; | ||
22 | uInt pad; /* pad structure to a power of 2 (4 bytes for */ | ||
23 | } word; /* 16-bit, 8 bytes for 32-bit int's) */ | ||
24 | uInt base; /* literal, length base, distance base, | ||
25 | or table offset */ | ||
26 | }; | ||
27 | |||
28 | /* Maximum size of dynamic tree. The maximum found in a long but non- | ||
29 | exhaustive search was 1004 huft structures (850 for length/literals | ||
30 | and 154 for distances, the latter actually the result of an | ||
31 | exhaustive search). The actual maximum is not known, but the | ||
32 | value below is more than safe. */ | ||
33 | #define MANY 1440 | ||
34 | |||
35 | extern int inflate_trees_bits OF(( | ||
36 | uIntf *, /* 19 code lengths */ | ||
37 | uIntf *, /* bits tree desired/actual depth */ | ||
38 | inflate_huft * FAR *, /* bits tree result */ | ||
39 | inflate_huft *, /* space for trees */ | ||
40 | z_streamp)); /* for messages */ | ||
41 | |||
42 | extern int inflate_trees_dynamic OF(( | ||
43 | uInt, /* number of literal/length codes */ | ||
44 | uInt, /* number of distance codes */ | ||
45 | uIntf *, /* that many (total) code lengths */ | ||
46 | uIntf *, /* literal desired/actual bit depth */ | ||
47 | uIntf *, /* distance desired/actual bit depth */ | ||
48 | inflate_huft * FAR *, /* literal/length tree result */ | ||
49 | inflate_huft * FAR *, /* distance tree result */ | ||
50 | inflate_huft *, /* space for trees */ | ||
51 | z_streamp)); /* for messages */ | ||
52 | |||
53 | extern int inflate_trees_fixed OF(( | ||
54 | uIntf *, /* literal desired/actual bit depth */ | ||
55 | uIntf *, /* distance desired/actual bit depth */ | ||
56 | inflate_huft * FAR *, /* literal/length tree result */ | ||
57 | inflate_huft * FAR *, /* distance tree result */ | ||
58 | z_streamp)); /* for memory allocation */ | ||
diff --git a/pwmanager/libcrypt/zlib/infutil.c b/pwmanager/libcrypt/zlib/infutil.c new file mode 100644 index 0000000..9a07622 --- a/dev/null +++ b/pwmanager/libcrypt/zlib/infutil.c | |||
@@ -0,0 +1,87 @@ | |||
1 | /* inflate_util.c -- data and routines common to blocks and codes | ||
2 | * Copyright (C) 1995-2002 Mark Adler | ||
3 | * For conditions of distribution and use, see copyright notice in zlib.h | ||
4 | */ | ||
5 | |||
6 | #include "zutil.h" | ||
7 | #include "infblock.h" | ||
8 | #include "inftrees.h" | ||
9 | #include "infcodes.h" | ||
10 | #include "infutil.h" | ||
11 | |||
12 | struct inflate_codes_state {int dummy;}; /* for buggy compilers */ | ||
13 | |||
14 | /* And'ing with mask[n] masks the lower n bits */ | ||
15 | uInt inflate_mask[17] = { | ||
16 | 0x0000, | ||
17 | 0x0001, 0x0003, 0x0007, 0x000f, 0x001f, 0x003f, 0x007f, 0x00ff, | ||
18 | 0x01ff, 0x03ff, 0x07ff, 0x0fff, 0x1fff, 0x3fff, 0x7fff, 0xffff | ||
19 | }; | ||
20 | |||
21 | |||
22 | /* copy as much as possible from the sliding window to the output area */ | ||
23 | int inflate_flush(s, z, r) | ||
24 | inflate_blocks_statef *s; | ||
25 | z_streamp z; | ||
26 | int r; | ||
27 | { | ||
28 | uInt n; | ||
29 | Bytef *p; | ||
30 | Bytef *q; | ||
31 | |||
32 | /* local copies of source and destination pointers */ | ||
33 | p = z->next_out; | ||
34 | q = s->read; | ||
35 | |||
36 | /* compute number of bytes to copy as far as end of window */ | ||
37 | n = (uInt)((q <= s->write ? s->write : s->end) - q); | ||
38 | if (n > z->avail_out) n = z->avail_out; | ||
39 | if (n && r == Z_BUF_ERROR) r = Z_OK; | ||
40 | |||
41 | /* update counters */ | ||
42 | z->avail_out -= n; | ||
43 | z->total_out += n; | ||
44 | |||
45 | /* update check information */ | ||
46 | if (s->checkfn != Z_NULL) | ||
47 | z->adler = s->check = (*s->checkfn)(s->check, q, n); | ||
48 | |||
49 | /* copy as far as end of window */ | ||
50 | zmemcpy(p, q, n); | ||
51 | p += n; | ||
52 | q += n; | ||
53 | |||
54 | /* see if more to copy at beginning of window */ | ||
55 | if (q == s->end) | ||
56 | { | ||
57 | /* wrap pointers */ | ||
58 | q = s->window; | ||
59 | if (s->write == s->end) | ||
60 | s->write = s->window; | ||
61 | |||
62 | /* compute bytes to copy */ | ||
63 | n = (uInt)(s->write - q); | ||
64 | if (n > z->avail_out) n = z->avail_out; | ||
65 | if (n && r == Z_BUF_ERROR) r = Z_OK; | ||
66 | |||
67 | /* update counters */ | ||
68 | z->avail_out -= n; | ||
69 | z->total_out += n; | ||
70 | |||
71 | /* update check information */ | ||
72 | if (s->checkfn != Z_NULL) | ||
73 | z->adler = s->check = (*s->checkfn)(s->check, q, n); | ||
74 | |||
75 | /* copy */ | ||
76 | zmemcpy(p, q, n); | ||
77 | p += n; | ||
78 | q += n; | ||
79 | } | ||
80 | |||
81 | /* update pointers */ | ||
82 | z->next_out = p; | ||
83 | s->read = q; | ||
84 | |||
85 | /* done */ | ||
86 | return r; | ||
87 | } | ||
diff --git a/pwmanager/libcrypt/zlib/infutil.h b/pwmanager/libcrypt/zlib/infutil.h new file mode 100644 index 0000000..4401df8 --- a/dev/null +++ b/pwmanager/libcrypt/zlib/infutil.h | |||
@@ -0,0 +1,98 @@ | |||
1 | /* infutil.h -- types and macros common to blocks and codes | ||
2 | * Copyright (C) 1995-2002 Mark Adler | ||
3 | * For conditions of distribution and use, see copyright notice in zlib.h | ||
4 | */ | ||
5 | |||
6 | /* WARNING: this file should *not* be used by applications. It is | ||
7 | part of the implementation of the compression library and is | ||
8 | subject to change. Applications should only use zlib.h. | ||
9 | */ | ||
10 | |||
11 | #ifndef _INFUTIL_H | ||
12 | #define _INFUTIL_H | ||
13 | |||
14 | typedef enum { | ||
15 | TYPE, /* get type bits (3, including end bit) */ | ||
16 | LENS, /* get lengths for stored */ | ||
17 | STORED, /* processing stored block */ | ||
18 | TABLE, /* get table lengths */ | ||
19 | BTREE, /* get bit lengths tree for a dynamic block */ | ||
20 | DTREE, /* get length, distance trees for a dynamic block */ | ||
21 | CODES, /* processing fixed or dynamic block */ | ||
22 | DRY, /* output remaining window bytes */ | ||
23 | DONE, /* finished last block, done */ | ||
24 | BAD} /* got a data error--stuck here */ | ||
25 | inflate_block_mode; | ||
26 | |||
27 | /* inflate blocks semi-private state */ | ||
28 | struct inflate_blocks_state { | ||
29 | |||
30 | /* mode */ | ||
31 | inflate_block_mode mode; /* current inflate_block mode */ | ||
32 | |||
33 | /* mode dependent information */ | ||
34 | union { | ||
35 | uInt left; /* if STORED, bytes left to copy */ | ||
36 | struct { | ||
37 | uInt table; /* table lengths (14 bits) */ | ||
38 | uInt index; /* index into blens (or border) */ | ||
39 | uIntf *blens; /* bit lengths of codes */ | ||
40 | uInt bb; /* bit length tree depth */ | ||
41 | inflate_huft *tb; /* bit length decoding tree */ | ||
42 | } trees; /* if DTREE, decoding info for trees */ | ||
43 | struct { | ||
44 | inflate_codes_statef | ||
45 | *codes; | ||
46 | } decode; /* if CODES, current state */ | ||
47 | } sub; /* submode */ | ||
48 | uInt last; /* true if this block is the last block */ | ||
49 | |||
50 | /* mode independent information */ | ||
51 | uInt bitk; /* bits in bit buffer */ | ||
52 | uLong bitb; /* bit buffer */ | ||
53 | inflate_huft *hufts; /* single malloc for tree space */ | ||
54 | Bytef *window; /* sliding window */ | ||
55 | Bytef *end; /* one byte after sliding window */ | ||
56 | Bytef *read; /* window read pointer */ | ||
57 | Bytef *write; /* window write pointer */ | ||
58 | check_func checkfn; /* check function */ | ||
59 | uLong check; /* check on output */ | ||
60 | |||
61 | }; | ||
62 | |||
63 | |||
64 | /* defines for inflate input/output */ | ||
65 | /* update pointers and return */ | ||
66 | #define UPDBITS {s->bitb=b;s->bitk=k;} | ||
67 | #define UPDIN {z->avail_in=n;z->total_in+=p-z->next_in;z->next_in=p;} | ||
68 | #define UPDOUT {s->write=q;} | ||
69 | #define UPDATE {UPDBITS UPDIN UPDOUT} | ||
70 | #define LEAVE {UPDATE return inflate_flush(s,z,r);} | ||
71 | /* get bytes and bits */ | ||
72 | #define LOADIN {p=z->next_in;n=z->avail_in;b=s->bitb;k=s->bitk;} | ||
73 | #define NEEDBYTE {if(n)r=Z_OK;else LEAVE} | ||
74 | #define NEXTBYTE (n--,*p++) | ||
75 | #define NEEDBITS(j) {while(k<(j)){NEEDBYTE;b|=((uLong)NEXTBYTE)<<k;k+=8;}} | ||
76 | #define DUMPBITS(j) {b>>=(j);k-=(j);} | ||
77 | /* output bytes */ | ||
78 | #define WAVAIL (uInt)(q<s->read?s->read-q-1:s->end-q) | ||
79 | #define LOADOUT {q=s->write;m=(uInt)WAVAIL;} | ||
80 | #define WRAP {if(q==s->end&&s->read!=s->window){q=s->window;m=(uInt)WAVAIL;}} | ||
81 | #define FLUSH {UPDOUT r=inflate_flush(s,z,r); LOADOUT} | ||
82 | #define NEEDOUT {if(m==0){WRAP if(m==0){FLUSH WRAP if(m==0) LEAVE}}r=Z_OK;} | ||
83 | #define OUTBYTE(a) {*q++=(Byte)(a);m--;} | ||
84 | /* load local pointers */ | ||
85 | #define LOAD {LOADIN LOADOUT} | ||
86 | |||
87 | /* masks for lower bits (size given to avoid silly warnings with Visual C++) */ | ||
88 | extern uInt inflate_mask[17]; | ||
89 | |||
90 | /* copy as much as possible from the sliding window to the output area */ | ||
91 | extern int inflate_flush OF(( | ||
92 | inflate_blocks_statef *, | ||
93 | z_streamp , | ||
94 | int)); | ||
95 | |||
96 | struct internal_state {int dummy;}; /* for buggy compilers */ | ||
97 | |||
98 | #endif | ||
diff --git a/pwmanager/libcrypt/zlib/trees.c b/pwmanager/libcrypt/zlib/trees.c new file mode 100644 index 0000000..0a98405 --- a/dev/null +++ b/pwmanager/libcrypt/zlib/trees.c | |||
@@ -0,0 +1,1214 @@ | |||
1 | /* trees.c -- output deflated data using Huffman coding | ||
2 | * Copyright (C) 1995-2002 Jean-loup Gailly | ||
3 | * For conditions of distribution and use, see copyright notice in zlib.h | ||
4 | */ | ||
5 | |||
6 | /* | ||
7 | * ALGORITHM | ||
8 | * | ||
9 | * The "deflation" process uses several Huffman trees. The more | ||
10 | * common source values are represented by shorter bit sequences. | ||
11 | * | ||
12 | * Each code tree is stored in a compressed form which is itself | ||
13 | * a Huffman encoding of the lengths of all the code strings (in | ||
14 | * ascending order by source values). The actual code strings are | ||
15 | * reconstructed from the lengths in the inflate process, as described | ||
16 | * in the deflate specification. | ||
17 | * | ||
18 | * REFERENCES | ||
19 | * | ||
20 | * Deutsch, L.P.,"'Deflate' Compressed Data Format Specification". | ||
21 | * Available in ftp.uu.net:/pub/archiving/zip/doc/deflate-1.1.doc | ||
22 | * | ||
23 | * Storer, James A. | ||
24 | * Data Compression: Methods and Theory, pp. 49-50. | ||
25 | * Computer Science Press, 1988. ISBN 0-7167-8156-5. | ||
26 | * | ||
27 | * Sedgewick, R. | ||
28 | * Algorithms, p290. | ||
29 | * Addison-Wesley, 1983. ISBN 0-201-06672-6. | ||
30 | */ | ||
31 | |||
32 | /* @(#) $Id$ */ | ||
33 | |||
34 | /* #define GEN_TREES_H */ | ||
35 | |||
36 | #include "deflate.h" | ||
37 | |||
38 | #ifdef DEBUG | ||
39 | # include <ctype.h> | ||
40 | #endif | ||
41 | |||
42 | /* =========================================================================== | ||
43 | * Constants | ||
44 | */ | ||
45 | |||
46 | #define MAX_BL_BITS 7 | ||
47 | /* Bit length codes must not exceed MAX_BL_BITS bits */ | ||
48 | |||
49 | #define END_BLOCK 256 | ||
50 | /* end of block literal code */ | ||
51 | |||
52 | #define REP_3_6 16 | ||
53 | /* repeat previous bit length 3-6 times (2 bits of repeat count) */ | ||
54 | |||
55 | #define REPZ_3_10 17 | ||
56 | /* repeat a zero length 3-10 times (3 bits of repeat count) */ | ||
57 | |||
58 | #define REPZ_11_138 18 | ||
59 | /* repeat a zero length 11-138 times (7 bits of repeat count) */ | ||
60 | |||
61 | local const int extra_lbits[LENGTH_CODES] /* extra bits for each length code */ | ||
62 | = {0,0,0,0,0,0,0,0,1,1,1,1,2,2,2,2,3,3,3,3,4,4,4,4,5,5,5,5,0}; | ||
63 | |||
64 | local const int extra_dbits[D_CODES] /* extra bits for each distance code */ | ||
65 | = {0,0,0,0,1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8,9,9,10,10,11,11,12,12,13,13}; | ||
66 | |||
67 | local const int extra_blbits[BL_CODES]/* extra bits for each bit length code */ | ||
68 | = {0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,2,3,7}; | ||
69 | |||
70 | local const uch bl_order[BL_CODES] | ||
71 | = {16,17,18,0,8,7,9,6,10,5,11,4,12,3,13,2,14,1,15}; | ||
72 | /* The lengths of the bit length codes are sent in order of decreasing | ||
73 | * probability, to avoid transmitting the lengths for unused bit length codes. | ||
74 | */ | ||
75 | |||
76 | #define Buf_size (8 * 2*sizeof(char)) | ||
77 | /* Number of bits used within bi_buf. (bi_buf might be implemented on | ||
78 | * more than 16 bits on some systems.) | ||
79 | */ | ||
80 | |||
81 | /* =========================================================================== | ||
82 | * Local data. These are initialized only once. | ||
83 | */ | ||
84 | |||
85 | #define DIST_CODE_LEN 512 /* see definition of array dist_code below */ | ||
86 | |||
87 | #if defined(GEN_TREES_H) || !defined(STDC) | ||
88 | /* non ANSI compilers may not accept trees.h */ | ||
89 | |||
90 | local ct_data static_ltree[L_CODES+2]; | ||
91 | /* The static literal tree. Since the bit lengths are imposed, there is no | ||
92 | * need for the L_CODES extra codes used during heap construction. However | ||
93 | * The codes 286 and 287 are needed to build a canonical tree (see _tr_init | ||
94 | * below). | ||
95 | */ | ||
96 | |||
97 | local ct_data static_dtree[D_CODES]; | ||
98 | /* The static distance tree. (Actually a trivial tree since all codes use | ||
99 | * 5 bits.) | ||
100 | */ | ||
101 | |||
102 | uch _dist_code[DIST_CODE_LEN]; | ||
103 | /* Distance codes. The first 256 values correspond to the distances | ||
104 | * 3 .. 258, the last 256 values correspond to the top 8 bits of | ||
105 | * the 15 bit distances. | ||
106 | */ | ||
107 | |||
108 | uch _length_code[MAX_MATCH-MIN_MATCH+1]; | ||
109 | /* length code for each normalized match length (0 == MIN_MATCH) */ | ||
110 | |||
111 | local int base_length[LENGTH_CODES]; | ||
112 | /* First normalized length for each code (0 = MIN_MATCH) */ | ||
113 | |||
114 | local int base_dist[D_CODES]; | ||
115 | /* First normalized distance for each code (0 = distance of 1) */ | ||
116 | |||
117 | #else | ||
118 | # include "trees.h" | ||
119 | #endif /* GEN_TREES_H */ | ||
120 | |||
121 | struct static_tree_desc_s { | ||
122 | const ct_data *static_tree; /* static tree or NULL */ | ||
123 | const intf *extra_bits; /* extra bits for each code or NULL */ | ||
124 | int extra_base; /* base index for extra_bits */ | ||
125 | int elems; /* max number of elements in the tree */ | ||
126 | int max_length; /* max bit length for the codes */ | ||
127 | }; | ||
128 | |||
129 | local static_tree_desc static_l_desc = | ||
130 | {static_ltree, extra_lbits, LITERALS+1, L_CODES, MAX_BITS}; | ||
131 | |||
132 | local static_tree_desc static_d_desc = | ||
133 | {static_dtree, extra_dbits, 0, D_CODES, MAX_BITS}; | ||
134 | |||
135 | local static_tree_desc static_bl_desc = | ||
136 | {(const ct_data *)0, extra_blbits, 0, BL_CODES, MAX_BL_BITS}; | ||
137 | |||
138 | /* =========================================================================== | ||
139 | * Local (static) routines in this file. | ||
140 | */ | ||
141 | |||
142 | local void tr_static_init OF((void)); | ||
143 | local void init_block OF((deflate_state *s)); | ||
144 | local void pqdownheap OF((deflate_state *s, ct_data *tree, int k)); | ||
145 | local void gen_bitlen OF((deflate_state *s, tree_desc *desc)); | ||
146 | local void gen_codes OF((ct_data *tree, int max_code, ushf *bl_count)); | ||
147 | local void build_tree OF((deflate_state *s, tree_desc *desc)); | ||
148 | local void scan_tree OF((deflate_state *s, ct_data *tree, int max_code)); | ||
149 | local void send_tree OF((deflate_state *s, ct_data *tree, int max_code)); | ||
150 | local int build_bl_tree OF((deflate_state *s)); | ||
151 | local void send_all_trees OF((deflate_state *s, int lcodes, int dcodes, | ||
152 | int blcodes)); | ||
153 | local void compress_block OF((deflate_state *s, ct_data *ltree, | ||
154 | ct_data *dtree)); | ||
155 | local void set_data_type OF((deflate_state *s)); | ||
156 | local unsigned bi_reverse OF((unsigned value, int length)); | ||
157 | local void bi_windup OF((deflate_state *s)); | ||
158 | local void bi_flush OF((deflate_state *s)); | ||
159 | local void copy_block OF((deflate_state *s, charf *buf, unsigned len, | ||
160 | int header)); | ||
161 | |||
162 | #ifdef GEN_TREES_H | ||
163 | local void gen_trees_header OF((void)); | ||
164 | #endif | ||
165 | |||
166 | #ifndef DEBUG | ||
167 | # define send_code(s, c, tree) send_bits(s, tree[c].Code, tree[c].Len) | ||
168 | /* Send a code of the given tree. c and tree must not have side effects */ | ||
169 | |||
170 | #else /* DEBUG */ | ||
171 | # define send_code(s, c, tree) \ | ||
172 | { if (z_verbose>2) fprintf(stderr,"\ncd %3d ",(c)); \ | ||
173 | send_bits(s, tree[c].Code, tree[c].Len); } | ||
174 | #endif | ||
175 | |||
176 | /* =========================================================================== | ||
177 | * Output a short LSB first on the stream. | ||
178 | * IN assertion: there is enough room in pendingBuf. | ||
179 | */ | ||
180 | #define put_short(s, w) { \ | ||
181 | put_byte(s, (uch)((w) & 0xff)); \ | ||
182 | put_byte(s, (uch)((ush)(w) >> 8)); \ | ||
183 | } | ||
184 | |||
185 | /* =========================================================================== | ||
186 | * Send a value on a given number of bits. | ||
187 | * IN assertion: length <= 16 and value fits in length bits. | ||
188 | */ | ||
189 | #ifdef DEBUG | ||
190 | local void send_bits OF((deflate_state *s, int value, int length)); | ||
191 | |||
192 | local void send_bits(s, value, length) | ||
193 | deflate_state *s; | ||
194 | int value; /* value to send */ | ||
195 | int length; /* number of bits */ | ||
196 | { | ||
197 | Tracevv((stderr," l %2d v %4x ", length, value)); | ||
198 | Assert(length > 0 && length <= 15, "invalid length"); | ||
199 | s->bits_sent += (ulg)length; | ||
200 | |||
201 | /* If not enough room in bi_buf, use (valid) bits from bi_buf and | ||
202 | * (16 - bi_valid) bits from value, leaving (width - (16-bi_valid)) | ||
203 | * unused bits in value. | ||
204 | */ | ||
205 | if (s->bi_valid > (int)Buf_size - length) { | ||
206 | s->bi_buf |= (value << s->bi_valid); | ||
207 | put_short(s, s->bi_buf); | ||
208 | s->bi_buf = (ush)value >> (Buf_size - s->bi_valid); | ||
209 | s->bi_valid += length - Buf_size; | ||
210 | } else { | ||
211 | s->bi_buf |= value << s->bi_valid; | ||
212 | s->bi_valid += length; | ||
213 | } | ||
214 | } | ||
215 | #else /* !DEBUG */ | ||
216 | |||
217 | #define send_bits(s, value, length) \ | ||
218 | { int len = length;\ | ||
219 | if (s->bi_valid > (int)Buf_size - len) {\ | ||
220 | int val = value;\ | ||
221 | s->bi_buf |= (val << s->bi_valid);\ | ||
222 | put_short(s, s->bi_buf);\ | ||
223 | s->bi_buf = (ush)val >> (Buf_size - s->bi_valid);\ | ||
224 | s->bi_valid += len - Buf_size;\ | ||
225 | } else {\ | ||
226 | s->bi_buf |= (value) << s->bi_valid;\ | ||
227 | s->bi_valid += len;\ | ||
228 | }\ | ||
229 | } | ||
230 | #endif /* DEBUG */ | ||
231 | |||
232 | |||
233 | #define MAX(a,b) (a >= b ? a : b) | ||
234 | /* the arguments must not have side effects */ | ||
235 | |||
236 | /* =========================================================================== | ||
237 | * Initialize the various 'constant' tables. | ||
238 | */ | ||
239 | local void tr_static_init() | ||
240 | { | ||
241 | #if defined(GEN_TREES_H) || !defined(STDC) | ||
242 | static int static_init_done = 0; | ||
243 | int n; /* iterates over tree elements */ | ||
244 | int bits; /* bit counter */ | ||
245 | int length; /* length value */ | ||
246 | int code; /* code value */ | ||
247 | int dist; /* distance index */ | ||
248 | ush bl_count[MAX_BITS+1]; | ||
249 | /* number of codes at each bit length for an optimal tree */ | ||
250 | |||
251 | if (static_init_done) return; | ||
252 | |||
253 | /* For some embedded targets, global variables are not initialized: */ | ||
254 | static_l_desc.static_tree = static_ltree; | ||
255 | static_l_desc.extra_bits = extra_lbits; | ||
256 | static_d_desc.static_tree = static_dtree; | ||
257 | static_d_desc.extra_bits = extra_dbits; | ||
258 | static_bl_desc.extra_bits = extra_blbits; | ||
259 | |||
260 | /* Initialize the mapping length (0..255) -> length code (0..28) */ | ||
261 | length = 0; | ||
262 | for (code = 0; code < LENGTH_CODES-1; code++) { | ||
263 | base_length[code] = length; | ||
264 | for (n = 0; n < (1<<extra_lbits[code]); n++) { | ||
265 | _length_code[length++] = (uch)code; | ||
266 | } | ||
267 | } | ||
268 | Assert (length == 256, "tr_static_init: length != 256"); | ||
269 | /* Note that the length 255 (match length 258) can be represented | ||
270 | * in two different ways: code 284 + 5 bits or code 285, so we | ||
271 | * overwrite length_code[255] to use the best encoding: | ||
272 | */ | ||
273 | _length_code[length-1] = (uch)code; | ||
274 | |||
275 | /* Initialize the mapping dist (0..32K) -> dist code (0..29) */ | ||
276 | dist = 0; | ||
277 | for (code = 0 ; code < 16; code++) { | ||
278 | base_dist[code] = dist; | ||
279 | for (n = 0; n < (1<<extra_dbits[code]); n++) { | ||
280 | _dist_code[dist++] = (uch)code; | ||
281 | } | ||
282 | } | ||
283 | Assert (dist == 256, "tr_static_init: dist != 256"); | ||
284 | dist >>= 7; /* from now on, all distances are divided by 128 */ | ||
285 | for ( ; code < D_CODES; code++) { | ||
286 | base_dist[code] = dist << 7; | ||
287 | for (n = 0; n < (1<<(extra_dbits[code]-7)); n++) { | ||
288 | _dist_code[256 + dist++] = (uch)code; | ||
289 | } | ||
290 | } | ||
291 | Assert (dist == 256, "tr_static_init: 256+dist != 512"); | ||
292 | |||
293 | /* Construct the codes of the static literal tree */ | ||
294 | for (bits = 0; bits <= MAX_BITS; bits++) bl_count[bits] = 0; | ||
295 | n = 0; | ||
296 | while (n <= 143) static_ltree[n++].Len = 8, bl_count[8]++; | ||
297 | while (n <= 255) static_ltree[n++].Len = 9, bl_count[9]++; | ||
298 | while (n <= 279) static_ltree[n++].Len = 7, bl_count[7]++; | ||
299 | while (n <= 287) static_ltree[n++].Len = 8, bl_count[8]++; | ||
300 | /* Codes 286 and 287 do not exist, but we must include them in the | ||
301 | * tree construction to get a canonical Huffman tree (longest code | ||
302 | * all ones) | ||
303 | */ | ||
304 | gen_codes((ct_data *)static_ltree, L_CODES+1, bl_count); | ||
305 | |||
306 | /* The static distance tree is trivial: */ | ||
307 | for (n = 0; n < D_CODES; n++) { | ||
308 | static_dtree[n].Len = 5; | ||
309 | static_dtree[n].Code = bi_reverse((unsigned)n, 5); | ||
310 | } | ||
311 | static_init_done = 1; | ||
312 | |||
313 | # ifdef GEN_TREES_H | ||
314 | gen_trees_header(); | ||
315 | # endif | ||
316 | #endif /* defined(GEN_TREES_H) || !defined(STDC) */ | ||
317 | } | ||
318 | |||
319 | /* =========================================================================== | ||
320 | * Genererate the file trees.h describing the static trees. | ||
321 | */ | ||
322 | #ifdef GEN_TREES_H | ||
323 | # ifndef DEBUG | ||
324 | # include <stdio.h> | ||
325 | # endif | ||
326 | |||
327 | # define SEPARATOR(i, last, width) \ | ||
328 | ((i) == (last)? "\n};\n\n" : \ | ||
329 | ((i) % (width) == (width)-1 ? ",\n" : ", ")) | ||
330 | |||
331 | void gen_trees_header() | ||
332 | { | ||
333 | FILE *header = fopen("trees.h", "w"); | ||
334 | int i; | ||
335 | |||
336 | Assert (header != NULL, "Can't open trees.h"); | ||
337 | fprintf(header, | ||
338 | "/* header created automatically with -DGEN_TREES_H */\n\n"); | ||
339 | |||
340 | fprintf(header, "local const ct_data static_ltree[L_CODES+2] = {\n"); | ||
341 | for (i = 0; i < L_CODES+2; i++) { | ||
342 | fprintf(header, "{{%3u},{%3u}}%s", static_ltree[i].Code, | ||
343 | static_ltree[i].Len, SEPARATOR(i, L_CODES+1, 5)); | ||
344 | } | ||
345 | |||
346 | fprintf(header, "local const ct_data static_dtree[D_CODES] = {\n"); | ||
347 | for (i = 0; i < D_CODES; i++) { | ||
348 | fprintf(header, "{{%2u},{%2u}}%s", static_dtree[i].Code, | ||
349 | static_dtree[i].Len, SEPARATOR(i, D_CODES-1, 5)); | ||
350 | } | ||
351 | |||
352 | fprintf(header, "const uch _dist_code[DIST_CODE_LEN] = {\n"); | ||
353 | for (i = 0; i < DIST_CODE_LEN; i++) { | ||
354 | fprintf(header, "%2u%s", _dist_code[i], | ||
355 | SEPARATOR(i, DIST_CODE_LEN-1, 20)); | ||
356 | } | ||
357 | |||
358 | fprintf(header, "const uch _length_code[MAX_MATCH-MIN_MATCH+1]= {\n"); | ||
359 | for (i = 0; i < MAX_MATCH-MIN_MATCH+1; i++) { | ||
360 | fprintf(header, "%2u%s", _length_code[i], | ||
361 | SEPARATOR(i, MAX_MATCH-MIN_MATCH, 20)); | ||
362 | } | ||
363 | |||
364 | fprintf(header, "local const int base_length[LENGTH_CODES] = {\n"); | ||
365 | for (i = 0; i < LENGTH_CODES; i++) { | ||
366 | fprintf(header, "%1u%s", base_length[i], | ||
367 | SEPARATOR(i, LENGTH_CODES-1, 20)); | ||
368 | } | ||
369 | |||
370 | fprintf(header, "local const int base_dist[D_CODES] = {\n"); | ||
371 | for (i = 0; i < D_CODES; i++) { | ||
372 | fprintf(header, "%5u%s", base_dist[i], | ||
373 | SEPARATOR(i, D_CODES-1, 10)); | ||
374 | } | ||
375 | |||
376 | fclose(header); | ||
377 | } | ||
378 | #endif /* GEN_TREES_H */ | ||
379 | |||
380 | /* =========================================================================== | ||
381 | * Initialize the tree data structures for a new zlib stream. | ||
382 | */ | ||
383 | void _tr_init(s) | ||
384 | deflate_state *s; | ||
385 | { | ||
386 | tr_static_init(); | ||
387 | |||
388 | s->l_desc.dyn_tree = s->dyn_ltree; | ||
389 | s->l_desc.stat_desc = &static_l_desc; | ||
390 | |||
391 | s->d_desc.dyn_tree = s->dyn_dtree; | ||
392 | s->d_desc.stat_desc = &static_d_desc; | ||
393 | |||
394 | s->bl_desc.dyn_tree = s->bl_tree; | ||
395 | s->bl_desc.stat_desc = &static_bl_desc; | ||
396 | |||
397 | s->bi_buf = 0; | ||
398 | s->bi_valid = 0; | ||
399 | s->last_eob_len = 8; /* enough lookahead for inflate */ | ||
400 | #ifdef DEBUG | ||
401 | s->compressed_len = 0L; | ||
402 | s->bits_sent = 0L; | ||
403 | #endif | ||
404 | |||
405 | /* Initialize the first block of the first file: */ | ||
406 | init_block(s); | ||
407 | } | ||
408 | |||
409 | /* =========================================================================== | ||
410 | * Initialize a new block. | ||
411 | */ | ||
412 | local void init_block(s) | ||
413 | deflate_state *s; | ||
414 | { | ||
415 | int n; /* iterates over tree elements */ | ||
416 | |||
417 | /* Initialize the trees. */ | ||
418 | for (n = 0; n < L_CODES; n++) s->dyn_ltree[n].Freq = 0; | ||
419 | for (n = 0; n < D_CODES; n++) s->dyn_dtree[n].Freq = 0; | ||
420 | for (n = 0; n < BL_CODES; n++) s->bl_tree[n].Freq = 0; | ||
421 | |||
422 | s->dyn_ltree[END_BLOCK].Freq = 1; | ||
423 | s->opt_len = s->static_len = 0L; | ||
424 | s->last_lit = s->matches = 0; | ||
425 | } | ||
426 | |||
427 | #define SMALLEST 1 | ||
428 | /* Index within the heap array of least frequent node in the Huffman tree */ | ||
429 | |||
430 | |||
431 | /* =========================================================================== | ||
432 | * Remove the smallest element from the heap and recreate the heap with | ||
433 | * one less element. Updates heap and heap_len. | ||
434 | */ | ||
435 | #define pqremove(s, tree, top) \ | ||
436 | {\ | ||
437 | top = s->heap[SMALLEST]; \ | ||
438 | s->heap[SMALLEST] = s->heap[s->heap_len--]; \ | ||
439 | pqdownheap(s, tree, SMALLEST); \ | ||
440 | } | ||
441 | |||
442 | /* =========================================================================== | ||
443 | * Compares to subtrees, using the tree depth as tie breaker when | ||
444 | * the subtrees have equal frequency. This minimizes the worst case length. | ||
445 | */ | ||
446 | #define smaller(tree, n, m, depth) \ | ||
447 | (tree[n].Freq < tree[m].Freq || \ | ||
448 | (tree[n].Freq == tree[m].Freq && depth[n] <= depth[m])) | ||
449 | |||
450 | /* =========================================================================== | ||
451 | * Restore the heap property by moving down the tree starting at node k, | ||
452 | * exchanging a node with the smallest of its two sons if necessary, stopping | ||
453 | * when the heap property is re-established (each father smaller than its | ||
454 | * two sons). | ||
455 | */ | ||
456 | local void pqdownheap(s, tree, k) | ||
457 | deflate_state *s; | ||
458 | ct_data *tree; /* the tree to restore */ | ||
459 | int k; /* node to move down */ | ||
460 | { | ||
461 | int v = s->heap[k]; | ||
462 | int j = k << 1; /* left son of k */ | ||
463 | while (j <= s->heap_len) { | ||
464 | /* Set j to the smallest of the two sons: */ | ||
465 | if (j < s->heap_len && | ||
466 | smaller(tree, s->heap[j+1], s->heap[j], s->depth)) { | ||
467 | j++; | ||
468 | } | ||
469 | /* Exit if v is smaller than both sons */ | ||
470 | if (smaller(tree, v, s->heap[j], s->depth)) break; | ||
471 | |||
472 | /* Exchange v with the smallest son */ | ||
473 | s->heap[k] = s->heap[j]; k = j; | ||
474 | |||
475 | /* And continue down the tree, setting j to the left son of k */ | ||
476 | j <<= 1; | ||
477 | } | ||
478 | s->heap[k] = v; | ||
479 | } | ||
480 | |||
481 | /* =========================================================================== | ||
482 | * Compute the optimal bit lengths for a tree and update the total bit length | ||
483 | * for the current block. | ||
484 | * IN assertion: the fields freq and dad are set, heap[heap_max] and | ||
485 | * above are the tree nodes sorted by increasing frequency. | ||
486 | * OUT assertions: the field len is set to the optimal bit length, the | ||
487 | * array bl_count contains the frequencies for each bit length. | ||
488 | * The length opt_len is updated; static_len is also updated if stree is | ||
489 | * not null. | ||
490 | */ | ||
491 | local void gen_bitlen(s, desc) | ||
492 | deflate_state *s; | ||
493 | tree_desc *desc; /* the tree descriptor */ | ||
494 | { | ||
495 | ct_data *tree = desc->dyn_tree; | ||
496 | int max_code = desc->max_code; | ||
497 | const ct_data *stree = desc->stat_desc->static_tree; | ||
498 | const intf *extra = desc->stat_desc->extra_bits; | ||
499 | int base = desc->stat_desc->extra_base; | ||
500 | int max_length = desc->stat_desc->max_length; | ||
501 | int h; /* heap index */ | ||
502 | int n, m; /* iterate over the tree elements */ | ||
503 | int bits; /* bit length */ | ||
504 | int xbits; /* extra bits */ | ||
505 | ush f; /* frequency */ | ||
506 | int overflow = 0; /* number of elements with bit length too large */ | ||
507 | |||
508 | for (bits = 0; bits <= MAX_BITS; bits++) s->bl_count[bits] = 0; | ||
509 | |||
510 | /* In a first pass, compute the optimal bit lengths (which may | ||
511 | * overflow in the case of the bit length tree). | ||
512 | */ | ||
513 | tree[s->heap[s->heap_max]].Len = 0; /* root of the heap */ | ||
514 | |||
515 | for (h = s->heap_max+1; h < HEAP_SIZE; h++) { | ||
516 | n = s->heap[h]; | ||
517 | bits = tree[tree[n].Dad].Len + 1; | ||
518 | if (bits > max_length) bits = max_length, overflow++; | ||
519 | tree[n].Len = (ush)bits; | ||
520 | /* We overwrite tree[n].Dad which is no longer needed */ | ||
521 | |||
522 | if (n > max_code) continue; /* not a leaf node */ | ||
523 | |||
524 | s->bl_count[bits]++; | ||
525 | xbits = 0; | ||
526 | if (n >= base) xbits = extra[n-base]; | ||
527 | f = tree[n].Freq; | ||
528 | s->opt_len += (ulg)f * (bits + xbits); | ||
529 | if (stree) s->static_len += (ulg)f * (stree[n].Len + xbits); | ||
530 | } | ||
531 | if (overflow == 0) return; | ||
532 | |||
533 | Trace((stderr,"\nbit length overflow\n")); | ||
534 | /* This happens for example on obj2 and pic of the Calgary corpus */ | ||
535 | |||
536 | /* Find the first bit length which could increase: */ | ||
537 | do { | ||
538 | bits = max_length-1; | ||
539 | while (s->bl_count[bits] == 0) bits--; | ||
540 | s->bl_count[bits]--; /* move one leaf down the tree */ | ||
541 | s->bl_count[bits+1] += 2; /* move one overflow item as its brother */ | ||
542 | s->bl_count[max_length]--; | ||
543 | /* The brother of the overflow item also moves one step up, | ||
544 | * but this does not affect bl_count[max_length] | ||
545 | */ | ||
546 | overflow -= 2; | ||
547 | } while (overflow > 0); | ||
548 | |||
549 | /* Now recompute all bit lengths, scanning in increasing frequency. | ||
550 | * h is still equal to HEAP_SIZE. (It is simpler to reconstruct all | ||
551 | * lengths instead of fixing only the wrong ones. This idea is taken | ||
552 | * from 'ar' written by Haruhiko Okumura.) | ||
553 | */ | ||
554 | for (bits = max_length; bits != 0; bits--) { | ||
555 | n = s->bl_count[bits]; | ||
556 | while (n != 0) { | ||
557 | m = s->heap[--h]; | ||
558 | if (m > max_code) continue; | ||
559 | if (tree[m].Len != (unsigned) bits) { | ||
560 | Trace((stderr,"code %d bits %d->%d\n", m, tree[m].Len, bits)); | ||
561 | s->opt_len += ((long)bits - (long)tree[m].Len) | ||
562 | *(long)tree[m].Freq; | ||
563 | tree[m].Len = (ush)bits; | ||
564 | } | ||
565 | n--; | ||
566 | } | ||
567 | } | ||
568 | } | ||
569 | |||
570 | /* =========================================================================== | ||
571 | * Generate the codes for a given tree and bit counts (which need not be | ||
572 | * optimal). | ||
573 | * IN assertion: the array bl_count contains the bit length statistics for | ||
574 | * the given tree and the field len is set for all tree elements. | ||
575 | * OUT assertion: the field code is set for all tree elements of non | ||
576 | * zero code length. | ||
577 | */ | ||
578 | local void gen_codes (tree, max_code, bl_count) | ||
579 | ct_data *tree; /* the tree to decorate */ | ||
580 | int max_code; /* largest code with non zero frequency */ | ||
581 | ushf *bl_count; /* number of codes at each bit length */ | ||
582 | { | ||
583 | ush next_code[MAX_BITS+1]; /* next code value for each bit length */ | ||
584 | ush code = 0; /* running code value */ | ||
585 | int bits; /* bit index */ | ||
586 | int n; /* code index */ | ||
587 | |||
588 | /* The distribution counts are first used to generate the code values | ||
589 | * without bit reversal. | ||
590 | */ | ||
591 | for (bits = 1; bits <= MAX_BITS; bits++) { | ||
592 | next_code[bits] = code = (code + bl_count[bits-1]) << 1; | ||
593 | } | ||
594 | /* Check that the bit counts in bl_count are consistent. The last code | ||
595 | * must be all ones. | ||
596 | */ | ||
597 | Assert (code + bl_count[MAX_BITS]-1 == (1<<MAX_BITS)-1, | ||
598 | "inconsistent bit counts"); | ||
599 | Tracev((stderr,"\ngen_codes: max_code %d ", max_code)); | ||
600 | |||
601 | for (n = 0; n <= max_code; n++) { | ||
602 | int len = tree[n].Len; | ||
603 | if (len == 0) continue; | ||
604 | /* Now reverse the bits */ | ||
605 | tree[n].Code = bi_reverse(next_code[len]++, len); | ||
606 | |||
607 | Tracecv(tree != static_ltree, (stderr,"\nn %3d %c l %2d c %4x (%x) ", | ||
608 | n, (isgraph(n) ? n : ' '), len, tree[n].Code, next_code[len]-1)); | ||
609 | } | ||
610 | } | ||
611 | |||
612 | /* =========================================================================== | ||
613 | * Construct one Huffman tree and assigns the code bit strings and lengths. | ||
614 | * Update the total bit length for the current block. | ||
615 | * IN assertion: the field freq is set for all tree elements. | ||
616 | * OUT assertions: the fields len and code are set to the optimal bit length | ||
617 | * and corresponding code. The length opt_len is updated; static_len is | ||
618 | * also updated if stree is not null. The field max_code is set. | ||
619 | */ | ||
620 | local void build_tree(s, desc) | ||
621 | deflate_state *s; | ||
622 | tree_desc *desc; /* the tree descriptor */ | ||
623 | { | ||
624 | ct_data *tree = desc->dyn_tree; | ||
625 | const ct_data *stree = desc->stat_desc->static_tree; | ||
626 | int elems = desc->stat_desc->elems; | ||
627 | int n, m; /* iterate over heap elements */ | ||
628 | int max_code = -1; /* largest code with non zero frequency */ | ||
629 | int node; /* new node being created */ | ||
630 | |||
631 | /* Construct the initial heap, with least frequent element in | ||
632 | * heap[SMALLEST]. The sons of heap[n] are heap[2*n] and heap[2*n+1]. | ||
633 | * heap[0] is not used. | ||
634 | */ | ||
635 | s->heap_len = 0, s->heap_max = HEAP_SIZE; | ||
636 | |||
637 | for (n = 0; n < elems; n++) { | ||
638 | if (tree[n].Freq != 0) { | ||
639 | s->heap[++(s->heap_len)] = max_code = n; | ||
640 | s->depth[n] = 0; | ||
641 | } else { | ||
642 | tree[n].Len = 0; | ||
643 | } | ||
644 | } | ||
645 | |||
646 | /* The pkzip format requires that at least one distance code exists, | ||
647 | * and that at least one bit should be sent even if there is only one | ||
648 | * possible code. So to avoid special checks later on we force at least | ||
649 | * two codes of non zero frequency. | ||
650 | */ | ||
651 | while (s->heap_len < 2) { | ||
652 | node = s->heap[++(s->heap_len)] = (max_code < 2 ? ++max_code : 0); | ||
653 | tree[node].Freq = 1; | ||
654 | s->depth[node] = 0; | ||
655 | s->opt_len--; if (stree) s->static_len -= stree[node].Len; | ||
656 | /* node is 0 or 1 so it does not have extra bits */ | ||
657 | } | ||
658 | desc->max_code = max_code; | ||
659 | |||
660 | /* The elements heap[heap_len/2+1 .. heap_len] are leaves of the tree, | ||
661 | * establish sub-heaps of increasing lengths: | ||
662 | */ | ||
663 | for (n = s->heap_len/2; n >= 1; n--) pqdownheap(s, tree, n); | ||
664 | |||
665 | /* Construct the Huffman tree by repeatedly combining the least two | ||
666 | * frequent nodes. | ||
667 | */ | ||
668 | node = elems; /* next internal node of the tree */ | ||
669 | do { | ||
670 | pqremove(s, tree, n); /* n = node of least frequency */ | ||
671 | m = s->heap[SMALLEST]; /* m = node of next least frequency */ | ||
672 | |||
673 | s->heap[--(s->heap_max)] = n; /* keep the nodes sorted by frequency */ | ||
674 | s->heap[--(s->heap_max)] = m; | ||
675 | |||
676 | /* Create a new node father of n and m */ | ||
677 | tree[node].Freq = tree[n].Freq + tree[m].Freq; | ||
678 | s->depth[node] = (uch) (MAX(s->depth[n], s->depth[m]) + 1); | ||
679 | tree[n].Dad = tree[m].Dad = (ush)node; | ||
680 | #ifdef DUMP_BL_TREE | ||
681 | if (tree == s->bl_tree) { | ||
682 | fprintf(stderr,"\nnode %d(%d), sons %d(%d) %d(%d)", | ||
683 | node, tree[node].Freq, n, tree[n].Freq, m, tree[m].Freq); | ||
684 | } | ||
685 | #endif | ||
686 | /* and insert the new node in the heap */ | ||
687 | s->heap[SMALLEST] = node++; | ||
688 | pqdownheap(s, tree, SMALLEST); | ||
689 | |||
690 | } while (s->heap_len >= 2); | ||
691 | |||
692 | s->heap[--(s->heap_max)] = s->heap[SMALLEST]; | ||
693 | |||
694 | /* At this point, the fields freq and dad are set. We can now | ||
695 | * generate the bit lengths. | ||
696 | */ | ||
697 | gen_bitlen(s, (tree_desc *)desc); | ||
698 | |||
699 | /* The field len is now set, we can generate the bit codes */ | ||
700 | gen_codes ((ct_data *)tree, max_code, s->bl_count); | ||
701 | } | ||
702 | |||
703 | /* =========================================================================== | ||
704 | * Scan a literal or distance tree to determine the frequencies of the codes | ||
705 | * in the bit length tree. | ||
706 | */ | ||
707 | local void scan_tree (s, tree, max_code) | ||
708 | deflate_state *s; | ||
709 | ct_data *tree; /* the tree to be scanned */ | ||
710 | int max_code; /* and its largest code of non zero frequency */ | ||
711 | { | ||
712 | int n; /* iterates over all tree elements */ | ||
713 | int prevlen = -1; /* last emitted length */ | ||
714 | int curlen; /* length of current code */ | ||
715 | int nextlen = tree[0].Len; /* length of next code */ | ||
716 | int count = 0; /* repeat count of the current code */ | ||
717 | int max_count = 7; /* max repeat count */ | ||
718 | int min_count = 4; /* min repeat count */ | ||
719 | |||
720 | if (nextlen == 0) max_count = 138, min_count = 3; | ||
721 | tree[max_code+1].Len = (ush)0xffff; /* guard */ | ||
722 | |||
723 | for (n = 0; n <= max_code; n++) { | ||
724 | curlen = nextlen; nextlen = tree[n+1].Len; | ||
725 | if (++count < max_count && curlen == nextlen) { | ||
726 | continue; | ||
727 | } else if (count < min_count) { | ||
728 | s->bl_tree[curlen].Freq += count; | ||
729 | } else if (curlen != 0) { | ||
730 | if (curlen != prevlen) s->bl_tree[curlen].Freq++; | ||
731 | s->bl_tree[REP_3_6].Freq++; | ||
732 | } else if (count <= 10) { | ||
733 | s->bl_tree[REPZ_3_10].Freq++; | ||
734 | } else { | ||
735 | s->bl_tree[REPZ_11_138].Freq++; | ||
736 | } | ||
737 | count = 0; prevlen = curlen; | ||
738 | if (nextlen == 0) { | ||
739 | max_count = 138, min_count = 3; | ||
740 | } else if (curlen == nextlen) { | ||
741 | max_count = 6, min_count = 3; | ||
742 | } else { | ||
743 | max_count = 7, min_count = 4; | ||
744 | } | ||
745 | } | ||
746 | } | ||
747 | |||
748 | /* =========================================================================== | ||
749 | * Send a literal or distance tree in compressed form, using the codes in | ||
750 | * bl_tree. | ||
751 | */ | ||
752 | local void send_tree (s, tree, max_code) | ||
753 | deflate_state *s; | ||
754 | ct_data *tree; /* the tree to be scanned */ | ||
755 | int max_code; /* and its largest code of non zero frequency */ | ||
756 | { | ||
757 | int n; /* iterates over all tree elements */ | ||
758 | int prevlen = -1; /* last emitted length */ | ||
759 | int curlen; /* length of current code */ | ||
760 | int nextlen = tree[0].Len; /* length of next code */ | ||
761 | int count = 0; /* repeat count of the current code */ | ||
762 | int max_count = 7; /* max repeat count */ | ||
763 | int min_count = 4; /* min repeat count */ | ||
764 | |||
765 | /* tree[max_code+1].Len = -1; */ /* guard already set */ | ||
766 | if (nextlen == 0) max_count = 138, min_count = 3; | ||
767 | |||
768 | for (n = 0; n <= max_code; n++) { | ||
769 | curlen = nextlen; nextlen = tree[n+1].Len; | ||
770 | if (++count < max_count && curlen == nextlen) { | ||
771 | continue; | ||
772 | } else if (count < min_count) { | ||
773 | do { send_code(s, curlen, s->bl_tree); } while (--count != 0); | ||
774 | |||
775 | } else if (curlen != 0) { | ||
776 | if (curlen != prevlen) { | ||
777 | send_code(s, curlen, s->bl_tree); count--; | ||
778 | } | ||
779 | Assert(count >= 3 && count <= 6, " 3_6?"); | ||
780 | send_code(s, REP_3_6, s->bl_tree); send_bits(s, count-3, 2); | ||
781 | |||
782 | } else if (count <= 10) { | ||
783 | send_code(s, REPZ_3_10, s->bl_tree); send_bits(s, count-3, 3); | ||
784 | |||
785 | } else { | ||
786 | send_code(s, REPZ_11_138, s->bl_tree); send_bits(s, count-11, 7); | ||
787 | } | ||
788 | count = 0; prevlen = curlen; | ||
789 | if (nextlen == 0) { | ||
790 | max_count = 138, min_count = 3; | ||
791 | } else if (curlen == nextlen) { | ||
792 | max_count = 6, min_count = 3; | ||
793 | } else { | ||
794 | max_count = 7, min_count = 4; | ||
795 | } | ||
796 | } | ||
797 | } | ||
798 | |||
799 | /* =========================================================================== | ||
800 | * Construct the Huffman tree for the bit lengths and return the index in | ||
801 | * bl_order of the last bit length code to send. | ||
802 | */ | ||
803 | local int build_bl_tree(s) | ||
804 | deflate_state *s; | ||
805 | { | ||
806 | int max_blindex; /* index of last bit length code of non zero freq */ | ||
807 | |||
808 | /* Determine the bit length frequencies for literal and distance trees */ | ||
809 | scan_tree(s, (ct_data *)s->dyn_ltree, s->l_desc.max_code); | ||
810 | scan_tree(s, (ct_data *)s->dyn_dtree, s->d_desc.max_code); | ||
811 | |||
812 | /* Build the bit length tree: */ | ||
813 | build_tree(s, (tree_desc *)(&(s->bl_desc))); | ||
814 | /* opt_len now includes the length of the tree representations, except | ||
815 | * the lengths of the bit lengths codes and the 5+5+4 bits for the counts. | ||
816 | */ | ||
817 | |||
818 | /* Determine the number of bit length codes to send. The pkzip format | ||
819 | * requires that at least 4 bit length codes be sent. (appnote.txt says | ||
820 | * 3 but the actual value used is 4.) | ||
821 | */ | ||
822 | for (max_blindex = BL_CODES-1; max_blindex >= 3; max_blindex--) { | ||
823 | if (s->bl_tree[bl_order[max_blindex]].Len != 0) break; | ||
824 | } | ||
825 | /* Update opt_len to include the bit length tree and counts */ | ||
826 | s->opt_len += 3*(max_blindex+1) + 5+5+4; | ||
827 | Tracev((stderr, "\ndyn trees: dyn %ld, stat %ld", | ||
828 | s->opt_len, s->static_len)); | ||
829 | |||
830 | return max_blindex; | ||
831 | } | ||
832 | |||
833 | /* =========================================================================== | ||
834 | * Send the header for a block using dynamic Huffman trees: the counts, the | ||
835 | * lengths of the bit length codes, the literal tree and the distance tree. | ||
836 | * IN assertion: lcodes >= 257, dcodes >= 1, blcodes >= 4. | ||
837 | */ | ||
838 | local void send_all_trees(s, lcodes, dcodes, blcodes) | ||
839 | deflate_state *s; | ||
840 | int lcodes, dcodes, blcodes; /* number of codes for each tree */ | ||
841 | { | ||
842 | int rank; /* index in bl_order */ | ||
843 | |||
844 | Assert (lcodes >= 257 && dcodes >= 1 && blcodes >= 4, "not enough codes"); | ||
845 | Assert (lcodes <= L_CODES && dcodes <= D_CODES && blcodes <= BL_CODES, | ||
846 | "too many codes"); | ||
847 | Tracev((stderr, "\nbl counts: ")); | ||
848 | send_bits(s, lcodes-257, 5); /* not +255 as stated in appnote.txt */ | ||
849 | send_bits(s, dcodes-1, 5); | ||
850 | send_bits(s, blcodes-4, 4); /* not -3 as stated in appnote.txt */ | ||
851 | for (rank = 0; rank < blcodes; rank++) { | ||
852 | Tracev((stderr, "\nbl code %2d ", bl_order[rank])); | ||
853 | send_bits(s, s->bl_tree[bl_order[rank]].Len, 3); | ||
854 | } | ||
855 | Tracev((stderr, "\nbl tree: sent %ld", s->bits_sent)); | ||
856 | |||
857 | send_tree(s, (ct_data *)s->dyn_ltree, lcodes-1); /* literal tree */ | ||
858 | Tracev((stderr, "\nlit tree: sent %ld", s->bits_sent)); | ||
859 | |||
860 | send_tree(s, (ct_data *)s->dyn_dtree, dcodes-1); /* distance tree */ | ||
861 | Tracev((stderr, "\ndist tree: sent %ld", s->bits_sent)); | ||
862 | } | ||
863 | |||
864 | /* =========================================================================== | ||
865 | * Send a stored block | ||
866 | */ | ||
867 | void _tr_stored_block(s, buf, stored_len, eof) | ||
868 | deflate_state *s; | ||
869 | charf *buf; /* input block */ | ||
870 | ulg stored_len; /* length of input block */ | ||
871 | int eof; /* true if this is the last block for a file */ | ||
872 | { | ||
873 | send_bits(s, (STORED_BLOCK<<1)+eof, 3); /* send block type */ | ||
874 | #ifdef DEBUG | ||
875 | s->compressed_len = (s->compressed_len + 3 + 7) & (ulg)~7L; | ||
876 | s->compressed_len += (stored_len + 4) << 3; | ||
877 | #endif | ||
878 | copy_block(s, buf, (unsigned)stored_len, 1); /* with header */ | ||
879 | } | ||
880 | |||
881 | /* =========================================================================== | ||
882 | * Send one empty static block to give enough lookahead for inflate. | ||
883 | * This takes 10 bits, of which 7 may remain in the bit buffer. | ||
884 | * The current inflate code requires 9 bits of lookahead. If the | ||
885 | * last two codes for the previous block (real code plus EOB) were coded | ||
886 | * on 5 bits or less, inflate may have only 5+3 bits of lookahead to decode | ||
887 | * the last real code. In this case we send two empty static blocks instead | ||
888 | * of one. (There are no problems if the previous block is stored or fixed.) | ||
889 | * To simplify the code, we assume the worst case of last real code encoded | ||
890 | * on one bit only. | ||
891 | */ | ||
892 | void _tr_align(s) | ||
893 | deflate_state *s; | ||
894 | { | ||
895 | send_bits(s, STATIC_TREES<<1, 3); | ||
896 | send_code(s, END_BLOCK, static_ltree); | ||
897 | #ifdef DEBUG | ||
898 | s->compressed_len += 10L; /* 3 for block type, 7 for EOB */ | ||
899 | #endif | ||
900 | bi_flush(s); | ||
901 | /* Of the 10 bits for the empty block, we have already sent | ||
902 | * (10 - bi_valid) bits. The lookahead for the last real code (before | ||
903 | * the EOB of the previous block) was thus at least one plus the length | ||
904 | * of the EOB plus what we have just sent of the empty static block. | ||
905 | */ | ||
906 | if (1 + s->last_eob_len + 10 - s->bi_valid < 9) { | ||
907 | send_bits(s, STATIC_TREES<<1, 3); | ||
908 | send_code(s, END_BLOCK, static_ltree); | ||
909 | #ifdef DEBUG | ||
910 | s->compressed_len += 10L; | ||
911 | #endif | ||
912 | bi_flush(s); | ||
913 | } | ||
914 | s->last_eob_len = 7; | ||
915 | } | ||
916 | |||
917 | /* =========================================================================== | ||
918 | * Determine the best encoding for the current block: dynamic trees, static | ||
919 | * trees or store, and output the encoded block to the zip file. | ||
920 | */ | ||
921 | void _tr_flush_block(s, buf, stored_len, eof) | ||
922 | deflate_state *s; | ||
923 | charf *buf; /* input block, or NULL if too old */ | ||
924 | ulg stored_len; /* length of input block */ | ||
925 | int eof; /* true if this is the last block for a file */ | ||
926 | { | ||
927 | ulg opt_lenb, static_lenb; /* opt_len and static_len in bytes */ | ||
928 | int max_blindex = 0; /* index of last bit length code of non zero freq */ | ||
929 | |||
930 | /* Build the Huffman trees unless a stored block is forced */ | ||
931 | if (s->level > 0) { | ||
932 | |||
933 | /* Check if the file is ascii or binary */ | ||
934 | if (s->data_type == Z_UNKNOWN) set_data_type(s); | ||
935 | |||
936 | /* Construct the literal and distance trees */ | ||
937 | build_tree(s, (tree_desc *)(&(s->l_desc))); | ||
938 | Tracev((stderr, "\nlit data: dyn %ld, stat %ld", s->opt_len, | ||
939 | s->static_len)); | ||
940 | |||
941 | build_tree(s, (tree_desc *)(&(s->d_desc))); | ||
942 | Tracev((stderr, "\ndist data: dyn %ld, stat %ld", s->opt_len, | ||
943 | s->static_len)); | ||
944 | /* At this point, opt_len and static_len are the total bit lengths of | ||
945 | * the compressed block data, excluding the tree representations. | ||
946 | */ | ||
947 | |||
948 | /* Build the bit length tree for the above two trees, and get the index | ||
949 | * in bl_order of the last bit length code to send. | ||
950 | */ | ||
951 | max_blindex = build_bl_tree(s); | ||
952 | |||
953 | /* Determine the best encoding. Compute first the block length in bytes*/ | ||
954 | opt_lenb = (s->opt_len+3+7)>>3; | ||
955 | static_lenb = (s->static_len+3+7)>>3; | ||
956 | |||
957 | Tracev((stderr, "\nopt %lu(%lu) stat %lu(%lu) stored %lu lit %u ", | ||
958 | opt_lenb, s->opt_len, static_lenb, s->static_len, stored_len, | ||
959 | s->last_lit)); | ||
960 | |||
961 | if (static_lenb <= opt_lenb) opt_lenb = static_lenb; | ||
962 | |||
963 | } else { | ||
964 | Assert(buf != (char*)0, "lost buf"); | ||
965 | opt_lenb = static_lenb = stored_len + 5; /* force a stored block */ | ||
966 | } | ||
967 | |||
968 | #ifdef FORCE_STORED | ||
969 | if (buf != (char*)0) { /* force stored block */ | ||
970 | #else | ||
971 | if (stored_len+4 <= opt_lenb && buf != (char*)0) { | ||
972 | /* 4: two words for the lengths */ | ||
973 | #endif | ||
974 | /* The test buf != NULL is only necessary if LIT_BUFSIZE > WSIZE. | ||
975 | * Otherwise we can't have processed more than WSIZE input bytes since | ||
976 | * the last block flush, because compression would have been | ||
977 | * successful. If LIT_BUFSIZE <= WSIZE, it is never too late to | ||
978 | * transform a block into a stored block. | ||
979 | */ | ||
980 | _tr_stored_block(s, buf, stored_len, eof); | ||
981 | |||
982 | #ifdef FORCE_STATIC | ||
983 | } else if (static_lenb >= 0) { /* force static trees */ | ||
984 | #else | ||
985 | } else if (static_lenb == opt_lenb) { | ||
986 | #endif | ||
987 | send_bits(s, (STATIC_TREES<<1)+eof, 3); | ||
988 | compress_block(s, (ct_data *)static_ltree, (ct_data *)static_dtree); | ||
989 | #ifdef DEBUG | ||
990 | s->compressed_len += 3 + s->static_len; | ||
991 | #endif | ||
992 | } else { | ||
993 | send_bits(s, (DYN_TREES<<1)+eof, 3); | ||
994 | send_all_trees(s, s->l_desc.max_code+1, s->d_desc.max_code+1, | ||
995 | max_blindex+1); | ||
996 | compress_block(s, (ct_data *)s->dyn_ltree, (ct_data *)s->dyn_dtree); | ||
997 | #ifdef DEBUG | ||
998 | s->compressed_len += 3 + s->opt_len; | ||
999 | #endif | ||
1000 | } | ||
1001 | Assert (s->compressed_len == s->bits_sent, "bad compressed size"); | ||
1002 | /* The above check is made mod 2^32, for files larger than 512 MB | ||
1003 | * and uLong implemented on 32 bits. | ||
1004 | */ | ||
1005 | init_block(s); | ||
1006 | |||
1007 | if (eof) { | ||
1008 | bi_windup(s); | ||
1009 | #ifdef DEBUG | ||
1010 | s->compressed_len += 7; /* align on byte boundary */ | ||
1011 | #endif | ||
1012 | } | ||
1013 | Tracev((stderr,"\ncomprlen %lu(%lu) ", s->compressed_len>>3, | ||
1014 | s->compressed_len-7*eof)); | ||
1015 | } | ||
1016 | |||
1017 | /* =========================================================================== | ||
1018 | * Save the match info and tally the frequency counts. Return true if | ||
1019 | * the current block must be flushed. | ||
1020 | */ | ||
1021 | int _tr_tally (s, dist, lc) | ||
1022 | deflate_state *s; | ||
1023 | unsigned dist; /* distance of matched string */ | ||
1024 | unsigned lc; /* match length-MIN_MATCH or unmatched char (if dist==0) */ | ||
1025 | { | ||
1026 | s->d_buf[s->last_lit] = (ush)dist; | ||
1027 | s->l_buf[s->last_lit++] = (uch)lc; | ||
1028 | if (dist == 0) { | ||
1029 | /* lc is the unmatched char */ | ||
1030 | s->dyn_ltree[lc].Freq++; | ||
1031 | } else { | ||
1032 | s->matches++; | ||
1033 | /* Here, lc is the match length - MIN_MATCH */ | ||
1034 | dist--; /* dist = match distance - 1 */ | ||
1035 | Assert((ush)dist < (ush)MAX_DIST(s) && | ||
1036 | (ush)lc <= (ush)(MAX_MATCH-MIN_MATCH) && | ||
1037 | (ush)d_code(dist) < (ush)D_CODES, "_tr_tally: bad match"); | ||
1038 | |||
1039 | s->dyn_ltree[_length_code[lc]+LITERALS+1].Freq++; | ||
1040 | s->dyn_dtree[d_code(dist)].Freq++; | ||
1041 | } | ||
1042 | |||
1043 | #ifdef TRUNCATE_BLOCK | ||
1044 | /* Try to guess if it is profitable to stop the current block here */ | ||
1045 | if ((s->last_lit & 0x1fff) == 0 && s->level > 2) { | ||
1046 | /* Compute an upper bound for the compressed length */ | ||
1047 | ulg out_length = (ulg)s->last_lit*8L; | ||
1048 | ulg in_length = (ulg)((long)s->strstart - s->block_start); | ||
1049 | int dcode; | ||
1050 | for (dcode = 0; dcode < D_CODES; dcode++) { | ||
1051 | out_length += (ulg)s->dyn_dtree[dcode].Freq * | ||
1052 | (5L+extra_dbits[dcode]); | ||
1053 | } | ||
1054 | out_length >>= 3; | ||
1055 | Tracev((stderr,"\nlast_lit %u, in %ld, out ~%ld(%ld%%) ", | ||
1056 | s->last_lit, in_length, out_length, | ||
1057 | 100L - out_length*100L/in_length)); | ||
1058 | if (s->matches < s->last_lit/2 && out_length < in_length/2) return 1; | ||
1059 | } | ||
1060 | #endif | ||
1061 | return (s->last_lit == s->lit_bufsize-1); | ||
1062 | /* We avoid equality with lit_bufsize because of wraparound at 64K | ||
1063 | * on 16 bit machines and because stored blocks are restricted to | ||
1064 | * 64K-1 bytes. | ||
1065 | */ | ||
1066 | } | ||
1067 | |||
1068 | /* =========================================================================== | ||
1069 | * Send the block data compressed using the given Huffman trees | ||
1070 | */ | ||
1071 | local void compress_block(s, ltree, dtree) | ||
1072 | deflate_state *s; | ||
1073 | ct_data *ltree; /* literal tree */ | ||
1074 | ct_data *dtree; /* distance tree */ | ||
1075 | { | ||
1076 | unsigned dist; /* distance of matched string */ | ||
1077 | int lc; /* match length or unmatched char (if dist == 0) */ | ||
1078 | unsigned lx = 0; /* running index in l_buf */ | ||
1079 | unsigned code; /* the code to send */ | ||
1080 | int extra; /* number of extra bits to send */ | ||
1081 | |||
1082 | if (s->last_lit != 0) do { | ||
1083 | dist = s->d_buf[lx]; | ||
1084 | lc = s->l_buf[lx++]; | ||
1085 | if (dist == 0) { | ||
1086 | send_code(s, lc, ltree); /* send a literal byte */ | ||
1087 | Tracecv(isgraph(lc), (stderr," '%c' ", lc)); | ||
1088 | } else { | ||
1089 | /* Here, lc is the match length - MIN_MATCH */ | ||
1090 | code = _length_code[lc]; | ||
1091 | send_code(s, code+LITERALS+1, ltree); /* send the length code */ | ||
1092 | extra = extra_lbits[code]; | ||
1093 | if (extra != 0) { | ||
1094 | lc -= base_length[code]; | ||
1095 | send_bits(s, lc, extra); /* send the extra length bits */ | ||
1096 | } | ||
1097 | dist--; /* dist is now the match distance - 1 */ | ||
1098 | code = d_code(dist); | ||
1099 | Assert (code < D_CODES, "bad d_code"); | ||
1100 | |||
1101 | send_code(s, code, dtree); /* send the distance code */ | ||
1102 | extra = extra_dbits[code]; | ||
1103 | if (extra != 0) { | ||
1104 | dist -= base_dist[code]; | ||
1105 | send_bits(s, dist, extra); /* send the extra distance bits */ | ||
1106 | } | ||
1107 | } /* literal or match pair ? */ | ||
1108 | |||
1109 | /* Check that the overlay between pending_buf and d_buf+l_buf is ok: */ | ||
1110 | Assert(s->pending < s->lit_bufsize + 2*lx, "pendingBuf overflow"); | ||
1111 | |||
1112 | } while (lx < s->last_lit); | ||
1113 | |||
1114 | send_code(s, END_BLOCK, ltree); | ||
1115 | s->last_eob_len = ltree[END_BLOCK].Len; | ||
1116 | } | ||
1117 | |||
1118 | /* =========================================================================== | ||
1119 | * Set the data type to ASCII or BINARY, using a crude approximation: | ||
1120 | * binary if more than 20% of the bytes are <= 6 or >= 128, ascii otherwise. | ||
1121 | * IN assertion: the fields freq of dyn_ltree are set and the total of all | ||
1122 | * frequencies does not exceed 64K (to fit in an int on 16 bit machines). | ||
1123 | */ | ||
1124 | local void set_data_type(s) | ||
1125 | deflate_state *s; | ||
1126 | { | ||
1127 | int n = 0; | ||
1128 | unsigned ascii_freq = 0; | ||
1129 | unsigned bin_freq = 0; | ||
1130 | while (n < 7) bin_freq += s->dyn_ltree[n++].Freq; | ||
1131 | while (n < 128) ascii_freq += s->dyn_ltree[n++].Freq; | ||
1132 | while (n < LITERALS) bin_freq += s->dyn_ltree[n++].Freq; | ||
1133 | s->data_type = (Byte)(bin_freq > (ascii_freq >> 2) ? Z_BINARY : Z_ASCII); | ||
1134 | } | ||
1135 | |||
1136 | /* =========================================================================== | ||
1137 | * Reverse the first len bits of a code, using straightforward code (a faster | ||
1138 | * method would use a table) | ||
1139 | * IN assertion: 1 <= len <= 15 | ||
1140 | */ | ||
1141 | local unsigned bi_reverse(code, len) | ||
1142 | unsigned code; /* the value to invert */ | ||
1143 | int len; /* its bit length */ | ||
1144 | { | ||
1145 | register unsigned res = 0; | ||
1146 | do { | ||
1147 | res |= code & 1; | ||
1148 | code >>= 1, res <<= 1; | ||
1149 | } while (--len > 0); | ||
1150 | return res >> 1; | ||
1151 | } | ||
1152 | |||
1153 | /* =========================================================================== | ||
1154 | * Flush the bit buffer, keeping at most 7 bits in it. | ||
1155 | */ | ||
1156 | local void bi_flush(s) | ||
1157 | deflate_state *s; | ||
1158 | { | ||
1159 | if (s->bi_valid == 16) { | ||
1160 | put_short(s, s->bi_buf); | ||
1161 | s->bi_buf = 0; | ||
1162 | s->bi_valid = 0; | ||
1163 | } else if (s->bi_valid >= 8) { | ||
1164 | put_byte(s, (Byte)s->bi_buf); | ||
1165 | s->bi_buf >>= 8; | ||
1166 | s->bi_valid -= 8; | ||
1167 | } | ||
1168 | } | ||
1169 | |||
1170 | /* =========================================================================== | ||
1171 | * Flush the bit buffer and align the output on a byte boundary | ||
1172 | */ | ||
1173 | local void bi_windup(s) | ||
1174 | deflate_state *s; | ||
1175 | { | ||
1176 | if (s->bi_valid > 8) { | ||
1177 | put_short(s, s->bi_buf); | ||
1178 | } else if (s->bi_valid > 0) { | ||
1179 | put_byte(s, (Byte)s->bi_buf); | ||
1180 | } | ||
1181 | s->bi_buf = 0; | ||
1182 | s->bi_valid = 0; | ||
1183 | #ifdef DEBUG | ||
1184 | s->bits_sent = (s->bits_sent+7) & ~7; | ||
1185 | #endif | ||
1186 | } | ||
1187 | |||
1188 | /* =========================================================================== | ||
1189 | * Copy a stored block, storing first the length and its | ||
1190 | * one's complement if requested. | ||
1191 | */ | ||
1192 | local void copy_block(s, buf, len, header) | ||
1193 | deflate_state *s; | ||
1194 | charf *buf; /* the input data */ | ||
1195 | unsigned len; /* its length */ | ||
1196 | int header; /* true if block header must be written */ | ||
1197 | { | ||
1198 | bi_windup(s); /* align on byte boundary */ | ||
1199 | s->last_eob_len = 8; /* enough lookahead for inflate */ | ||
1200 | |||
1201 | if (header) { | ||
1202 | put_short(s, (ush)len); | ||
1203 | put_short(s, (ush)~len); | ||
1204 | #ifdef DEBUG | ||
1205 | s->bits_sent += 2*16; | ||
1206 | #endif | ||
1207 | } | ||
1208 | #ifdef DEBUG | ||
1209 | s->bits_sent += (ulg)len<<3; | ||
1210 | #endif | ||
1211 | while (len--) { | ||
1212 | put_byte(s, *buf++); | ||
1213 | } | ||
1214 | } | ||
diff --git a/pwmanager/libcrypt/zlib/trees.h b/pwmanager/libcrypt/zlib/trees.h new file mode 100644 index 0000000..72facf9 --- a/dev/null +++ b/pwmanager/libcrypt/zlib/trees.h | |||
@@ -0,0 +1,128 @@ | |||
1 | /* header created automatically with -DGEN_TREES_H */ | ||
2 | |||
3 | local const ct_data static_ltree[L_CODES+2] = { | ||
4 | {{ 12},{ 8}}, {{140},{ 8}}, {{ 76},{ 8}}, {{204},{ 8}}, {{ 44},{ 8}}, | ||
5 | {{172},{ 8}}, {{108},{ 8}}, {{236},{ 8}}, {{ 28},{ 8}}, {{156},{ 8}}, | ||
6 | {{ 92},{ 8}}, {{220},{ 8}}, {{ 60},{ 8}}, {{188},{ 8}}, {{124},{ 8}}, | ||
7 | {{252},{ 8}}, {{ 2},{ 8}}, {{130},{ 8}}, {{ 66},{ 8}}, {{194},{ 8}}, | ||
8 | {{ 34},{ 8}}, {{162},{ 8}}, {{ 98},{ 8}}, {{226},{ 8}}, {{ 18},{ 8}}, | ||
9 | {{146},{ 8}}, {{ 82},{ 8}}, {{210},{ 8}}, {{ 50},{ 8}}, {{178},{ 8}}, | ||
10 | {{114},{ 8}}, {{242},{ 8}}, {{ 10},{ 8}}, {{138},{ 8}}, {{ 74},{ 8}}, | ||
11 | {{202},{ 8}}, {{ 42},{ 8}}, {{170},{ 8}}, {{106},{ 8}}, {{234},{ 8}}, | ||
12 | {{ 26},{ 8}}, {{154},{ 8}}, {{ 90},{ 8}}, {{218},{ 8}}, {{ 58},{ 8}}, | ||
13 | {{186},{ 8}}, {{122},{ 8}}, {{250},{ 8}}, {{ 6},{ 8}}, {{134},{ 8}}, | ||
14 | {{ 70},{ 8}}, {{198},{ 8}}, {{ 38},{ 8}}, {{166},{ 8}}, {{102},{ 8}}, | ||
15 | {{230},{ 8}}, {{ 22},{ 8}}, {{150},{ 8}}, {{ 86},{ 8}}, {{214},{ 8}}, | ||
16 | {{ 54},{ 8}}, {{182},{ 8}}, {{118},{ 8}}, {{246},{ 8}}, {{ 14},{ 8}}, | ||
17 | {{142},{ 8}}, {{ 78},{ 8}}, {{206},{ 8}}, {{ 46},{ 8}}, {{174},{ 8}}, | ||
18 | {{110},{ 8}}, {{238},{ 8}}, {{ 30},{ 8}}, {{158},{ 8}}, {{ 94},{ 8}}, | ||
19 | {{222},{ 8}}, {{ 62},{ 8}}, {{190},{ 8}}, {{126},{ 8}}, {{254},{ 8}}, | ||
20 | {{ 1},{ 8}}, {{129},{ 8}}, {{ 65},{ 8}}, {{193},{ 8}}, {{ 33},{ 8}}, | ||
21 | {{161},{ 8}}, {{ 97},{ 8}}, {{225},{ 8}}, {{ 17},{ 8}}, {{145},{ 8}}, | ||
22 | {{ 81},{ 8}}, {{209},{ 8}}, {{ 49},{ 8}}, {{177},{ 8}}, {{113},{ 8}}, | ||
23 | {{241},{ 8}}, {{ 9},{ 8}}, {{137},{ 8}}, {{ 73},{ 8}}, {{201},{ 8}}, | ||
24 | {{ 41},{ 8}}, {{169},{ 8}}, {{105},{ 8}}, {{233},{ 8}}, {{ 25},{ 8}}, | ||
25 | {{153},{ 8}}, {{ 89},{ 8}}, {{217},{ 8}}, {{ 57},{ 8}}, {{185},{ 8}}, | ||
26 | {{121},{ 8}}, {{249},{ 8}}, {{ 5},{ 8}}, {{133},{ 8}}, {{ 69},{ 8}}, | ||
27 | {{197},{ 8}}, {{ 37},{ 8}}, {{165},{ 8}}, {{101},{ 8}}, {{229},{ 8}}, | ||
28 | {{ 21},{ 8}}, {{149},{ 8}}, {{ 85},{ 8}}, {{213},{ 8}}, {{ 53},{ 8}}, | ||
29 | {{181},{ 8}}, {{117},{ 8}}, {{245},{ 8}}, {{ 13},{ 8}}, {{141},{ 8}}, | ||
30 | {{ 77},{ 8}}, {{205},{ 8}}, {{ 45},{ 8}}, {{173},{ 8}}, {{109},{ 8}}, | ||
31 | {{237},{ 8}}, {{ 29},{ 8}}, {{157},{ 8}}, {{ 93},{ 8}}, {{221},{ 8}}, | ||
32 | {{ 61},{ 8}}, {{189},{ 8}}, {{125},{ 8}}, {{253},{ 8}}, {{ 19},{ 9}}, | ||
33 | {{275},{ 9}}, {{147},{ 9}}, {{403},{ 9}}, {{ 83},{ 9}}, {{339},{ 9}}, | ||
34 | {{211},{ 9}}, {{467},{ 9}}, {{ 51},{ 9}}, {{307},{ 9}}, {{179},{ 9}}, | ||
35 | {{435},{ 9}}, {{115},{ 9}}, {{371},{ 9}}, {{243},{ 9}}, {{499},{ 9}}, | ||
36 | {{ 11},{ 9}}, {{267},{ 9}}, {{139},{ 9}}, {{395},{ 9}}, {{ 75},{ 9}}, | ||
37 | {{331},{ 9}}, {{203},{ 9}}, {{459},{ 9}}, {{ 43},{ 9}}, {{299},{ 9}}, | ||
38 | {{171},{ 9}}, {{427},{ 9}}, {{107},{ 9}}, {{363},{ 9}}, {{235},{ 9}}, | ||
39 | {{491},{ 9}}, {{ 27},{ 9}}, {{283},{ 9}}, {{155},{ 9}}, {{411},{ 9}}, | ||
40 | {{ 91},{ 9}}, {{347},{ 9}}, {{219},{ 9}}, {{475},{ 9}}, {{ 59},{ 9}}, | ||
41 | {{315},{ 9}}, {{187},{ 9}}, {{443},{ 9}}, {{123},{ 9}}, {{379},{ 9}}, | ||
42 | {{251},{ 9}}, {{507},{ 9}}, {{ 7},{ 9}}, {{263},{ 9}}, {{135},{ 9}}, | ||
43 | {{391},{ 9}}, {{ 71},{ 9}}, {{327},{ 9}}, {{199},{ 9}}, {{455},{ 9}}, | ||
44 | {{ 39},{ 9}}, {{295},{ 9}}, {{167},{ 9}}, {{423},{ 9}}, {{103},{ 9}}, | ||
45 | {{359},{ 9}}, {{231},{ 9}}, {{487},{ 9}}, {{ 23},{ 9}}, {{279},{ 9}}, | ||
46 | {{151},{ 9}}, {{407},{ 9}}, {{ 87},{ 9}}, {{343},{ 9}}, {{215},{ 9}}, | ||
47 | {{471},{ 9}}, {{ 55},{ 9}}, {{311},{ 9}}, {{183},{ 9}}, {{439},{ 9}}, | ||
48 | {{119},{ 9}}, {{375},{ 9}}, {{247},{ 9}}, {{503},{ 9}}, {{ 15},{ 9}}, | ||
49 | {{271},{ 9}}, {{143},{ 9}}, {{399},{ 9}}, {{ 79},{ 9}}, {{335},{ 9}}, | ||
50 | {{207},{ 9}}, {{463},{ 9}}, {{ 47},{ 9}}, {{303},{ 9}}, {{175},{ 9}}, | ||
51 | {{431},{ 9}}, {{111},{ 9}}, {{367},{ 9}}, {{239},{ 9}}, {{495},{ 9}}, | ||
52 | {{ 31},{ 9}}, {{287},{ 9}}, {{159},{ 9}}, {{415},{ 9}}, {{ 95},{ 9}}, | ||
53 | {{351},{ 9}}, {{223},{ 9}}, {{479},{ 9}}, {{ 63},{ 9}}, {{319},{ 9}}, | ||
54 | {{191},{ 9}}, {{447},{ 9}}, {{127},{ 9}}, {{383},{ 9}}, {{255},{ 9}}, | ||
55 | {{511},{ 9}}, {{ 0},{ 7}}, {{ 64},{ 7}}, {{ 32},{ 7}}, {{ 96},{ 7}}, | ||
56 | {{ 16},{ 7}}, {{ 80},{ 7}}, {{ 48},{ 7}}, {{112},{ 7}}, {{ 8},{ 7}}, | ||
57 | {{ 72},{ 7}}, {{ 40},{ 7}}, {{104},{ 7}}, {{ 24},{ 7}}, {{ 88},{ 7}}, | ||
58 | {{ 56},{ 7}}, {{120},{ 7}}, {{ 4},{ 7}}, {{ 68},{ 7}}, {{ 36},{ 7}}, | ||
59 | {{100},{ 7}}, {{ 20},{ 7}}, {{ 84},{ 7}}, {{ 52},{ 7}}, {{116},{ 7}}, | ||
60 | {{ 3},{ 8}}, {{131},{ 8}}, {{ 67},{ 8}}, {{195},{ 8}}, {{ 35},{ 8}}, | ||
61 | {{163},{ 8}}, {{ 99},{ 8}}, {{227},{ 8}} | ||
62 | }; | ||
63 | |||
64 | local const ct_data static_dtree[D_CODES] = { | ||
65 | {{ 0},{ 5}}, {{16},{ 5}}, {{ 8},{ 5}}, {{24},{ 5}}, {{ 4},{ 5}}, | ||
66 | {{20},{ 5}}, {{12},{ 5}}, {{28},{ 5}}, {{ 2},{ 5}}, {{18},{ 5}}, | ||
67 | {{10},{ 5}}, {{26},{ 5}}, {{ 6},{ 5}}, {{22},{ 5}}, {{14},{ 5}}, | ||
68 | {{30},{ 5}}, {{ 1},{ 5}}, {{17},{ 5}}, {{ 9},{ 5}}, {{25},{ 5}}, | ||
69 | {{ 5},{ 5}}, {{21},{ 5}}, {{13},{ 5}}, {{29},{ 5}}, {{ 3},{ 5}}, | ||
70 | {{19},{ 5}}, {{11},{ 5}}, {{27},{ 5}}, {{ 7},{ 5}}, {{23},{ 5}} | ||
71 | }; | ||
72 | |||
73 | const uch _dist_code[DIST_CODE_LEN] = { | ||
74 | 0, 1, 2, 3, 4, 4, 5, 5, 6, 6, 6, 6, 7, 7, 7, 7, 8, 8, 8, 8, | ||
75 | 8, 8, 8, 8, 9, 9, 9, 9, 9, 9, 9, 9, 10, 10, 10, 10, 10, 10, 10, 10, | ||
76 | 10, 10, 10, 10, 10, 10, 10, 10, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, | ||
77 | 11, 11, 11, 11, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, | ||
78 | 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 13, 13, 13, 13, | ||
79 | 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, | ||
80 | 13, 13, 13, 13, 13, 13, 13, 13, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, | ||
81 | 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, | ||
82 | 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, | ||
83 | 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 15, 15, 15, 15, 15, 15, 15, 15, | ||
84 | 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, | ||
85 | 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, | ||
86 | 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 0, 0, 16, 17, | ||
87 | 18, 18, 19, 19, 20, 20, 20, 20, 21, 21, 21, 21, 22, 22, 22, 22, 22, 22, 22, 22, | ||
88 | 23, 23, 23, 23, 23, 23, 23, 23, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, | ||
89 | 24, 24, 24, 24, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, | ||
90 | 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, | ||
91 | 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 27, 27, 27, 27, 27, 27, 27, 27, | ||
92 | 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, | ||
93 | 27, 27, 27, 27, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, | ||
94 | 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, | ||
95 | 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, | ||
96 | 28, 28, 28, 28, 28, 28, 28, 28, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, | ||
97 | 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, | ||
98 | 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, | ||
99 | 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29 | ||
100 | }; | ||
101 | |||
102 | const uch _length_code[MAX_MATCH-MIN_MATCH+1]= { | ||
103 | 0, 1, 2, 3, 4, 5, 6, 7, 8, 8, 9, 9, 10, 10, 11, 11, 12, 12, 12, 12, | ||
104 | 13, 13, 13, 13, 14, 14, 14, 14, 15, 15, 15, 15, 16, 16, 16, 16, 16, 16, 16, 16, | ||
105 | 17, 17, 17, 17, 17, 17, 17, 17, 18, 18, 18, 18, 18, 18, 18, 18, 19, 19, 19, 19, | ||
106 | 19, 19, 19, 19, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, | ||
107 | 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 22, 22, 22, 22, | ||
108 | 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 23, 23, 23, 23, 23, 23, 23, 23, | ||
109 | 23, 23, 23, 23, 23, 23, 23, 23, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, | ||
110 | 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, | ||
111 | 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, | ||
112 | 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 26, 26, 26, 26, 26, 26, 26, 26, | ||
113 | 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, | ||
114 | 26, 26, 26, 26, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, | ||
115 | 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 28 | ||
116 | }; | ||
117 | |||
118 | local const int base_length[LENGTH_CODES] = { | ||
119 | 0, 1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 16, 20, 24, 28, 32, 40, 48, 56, | ||
120 | 64, 80, 96, 112, 128, 160, 192, 224, 0 | ||
121 | }; | ||
122 | |||
123 | local const int base_dist[D_CODES] = { | ||
124 | 0, 1, 2, 3, 4, 6, 8, 12, 16, 24, | ||
125 | 32, 48, 64, 96, 128, 192, 256, 384, 512, 768, | ||
126 | 1024, 1536, 2048, 3072, 4096, 6144, 8192, 12288, 16384, 24576 | ||
127 | }; | ||
128 | |||
diff --git a/pwmanager/libcrypt/zlib/uncompr.c b/pwmanager/libcrypt/zlib/uncompr.c new file mode 100644 index 0000000..a287714 --- a/dev/null +++ b/pwmanager/libcrypt/zlib/uncompr.c | |||
@@ -0,0 +1,58 @@ | |||
1 | /* uncompr.c -- decompress a memory buffer | ||
2 | * Copyright (C) 1995-2002 Jean-loup Gailly. | ||
3 | * For conditions of distribution and use, see copyright notice in zlib.h | ||
4 | */ | ||
5 | |||
6 | /* @(#) $Id$ */ | ||
7 | |||
8 | #include "zlib.h" | ||
9 | |||
10 | /* =========================================================================== | ||
11 | Decompresses the source buffer into the destination buffer. sourceLen is | ||
12 | the byte length of the source buffer. Upon entry, destLen is the total | ||
13 | size of the destination buffer, which must be large enough to hold the | ||
14 | entire uncompressed data. (The size of the uncompressed data must have | ||
15 | been saved previously by the compressor and transmitted to the decompressor | ||
16 | by some mechanism outside the scope of this compression library.) | ||
17 | Upon exit, destLen is the actual size of the compressed buffer. | ||
18 | This function can be used to decompress a whole file at once if the | ||
19 | input file is mmap'ed. | ||
20 | |||
21 | uncompress returns Z_OK if success, Z_MEM_ERROR if there was not | ||
22 | enough memory, Z_BUF_ERROR if there was not enough room in the output | ||
23 | buffer, or Z_DATA_ERROR if the input data was corrupted. | ||
24 | */ | ||
25 | int ZEXPORT uncompress (dest, destLen, source, sourceLen) | ||
26 | Bytef *dest; | ||
27 | uLongf *destLen; | ||
28 | const Bytef *source; | ||
29 | uLong sourceLen; | ||
30 | { | ||
31 | z_stream stream; | ||
32 | int err; | ||
33 | |||
34 | stream.next_in = (Bytef*)source; | ||
35 | stream.avail_in = (uInt)sourceLen; | ||
36 | /* Check for source > 64K on 16-bit machine: */ | ||
37 | if ((uLong)stream.avail_in != sourceLen) return Z_BUF_ERROR; | ||
38 | |||
39 | stream.next_out = dest; | ||
40 | stream.avail_out = (uInt)*destLen; | ||
41 | if ((uLong)stream.avail_out != *destLen) return Z_BUF_ERROR; | ||
42 | |||
43 | stream.zalloc = (alloc_func)0; | ||
44 | stream.zfree = (free_func)0; | ||
45 | |||
46 | err = inflateInit(&stream); | ||
47 | if (err != Z_OK) return err; | ||
48 | |||
49 | err = inflate(&stream, Z_FINISH); | ||
50 | if (err != Z_STREAM_END) { | ||
51 | inflateEnd(&stream); | ||
52 | return err == Z_OK ? Z_BUF_ERROR : err; | ||
53 | } | ||
54 | *destLen = stream.total_out; | ||
55 | |||
56 | err = inflateEnd(&stream); | ||
57 | return err; | ||
58 | } | ||
diff --git a/pwmanager/libcrypt/zlib/zconf.h b/pwmanager/libcrypt/zlib/zconf.h new file mode 100644 index 0000000..eb0ae2e --- a/dev/null +++ b/pwmanager/libcrypt/zlib/zconf.h | |||
@@ -0,0 +1,279 @@ | |||
1 | /* zconf.h -- configuration of the zlib compression library | ||
2 | * Copyright (C) 1995-2002 Jean-loup Gailly. | ||
3 | * For conditions of distribution and use, see copyright notice in zlib.h | ||
4 | */ | ||
5 | |||
6 | /* @(#) $Id$ */ | ||
7 | |||
8 | #ifndef _ZCONF_H | ||
9 | #define _ZCONF_H | ||
10 | |||
11 | /* | ||
12 | * If you *really* need a unique prefix for all types and library functions, | ||
13 | * compile with -DZ_PREFIX. The "standard" zlib should be compiled without it. | ||
14 | */ | ||
15 | #ifdef Z_PREFIX | ||
16 | # define deflateInit_z_deflateInit_ | ||
17 | # define deflatez_deflate | ||
18 | # define deflateEndz_deflateEnd | ||
19 | # define inflateInit_ z_inflateInit_ | ||
20 | # define inflatez_inflate | ||
21 | # define inflateEndz_inflateEnd | ||
22 | # define deflateInit2_z_deflateInit2_ | ||
23 | # define deflateSetDictionary z_deflateSetDictionary | ||
24 | # define deflateCopyz_deflateCopy | ||
25 | # define deflateResetz_deflateReset | ||
26 | # define deflateParamsz_deflateParams | ||
27 | # define inflateInit2_z_inflateInit2_ | ||
28 | # define inflateSetDictionary z_inflateSetDictionary | ||
29 | # define inflateSyncz_inflateSync | ||
30 | # define inflateSyncPoint z_inflateSyncPoint | ||
31 | # define inflateResetz_inflateReset | ||
32 | # define compressz_compress | ||
33 | # define compress2z_compress2 | ||
34 | # define uncompressz_uncompress | ||
35 | # define adler32z_adler32 | ||
36 | # define crc32 z_crc32 | ||
37 | # define get_crc_table z_get_crc_table | ||
38 | |||
39 | # define Byte z_Byte | ||
40 | # define uInt z_uInt | ||
41 | # define uLong z_uLong | ||
42 | # define Bytef z_Bytef | ||
43 | # define charf z_charf | ||
44 | # define intf z_intf | ||
45 | # define uIntf z_uIntf | ||
46 | # define uLongfz_uLongf | ||
47 | # define voidpfz_voidpf | ||
48 | # define voidp z_voidp | ||
49 | #endif | ||
50 | |||
51 | #if (defined(_WIN32) || defined(__WIN32__)) && !defined(WIN32) | ||
52 | # define WIN32 | ||
53 | #endif | ||
54 | #if defined(__GNUC__) || defined(WIN32) || defined(__386__) || defined(i386) | ||
55 | # ifndef __32BIT__ | ||
56 | # define __32BIT__ | ||
57 | # endif | ||
58 | #endif | ||
59 | #if defined(__MSDOS__) && !defined(MSDOS) | ||
60 | # define MSDOS | ||
61 | #endif | ||
62 | |||
63 | /* | ||
64 | * Compile with -DMAXSEG_64K if the alloc function cannot allocate more | ||
65 | * than 64k bytes at a time (needed on systems with 16-bit int). | ||
66 | */ | ||
67 | #if defined(MSDOS) && !defined(__32BIT__) | ||
68 | # define MAXSEG_64K | ||
69 | #endif | ||
70 | #ifdef MSDOS | ||
71 | # define UNALIGNED_OK | ||
72 | #endif | ||
73 | |||
74 | #if (defined(MSDOS) || defined(_WINDOWS) || defined(WIN32)) && !defined(STDC) | ||
75 | # define STDC | ||
76 | #endif | ||
77 | #if defined(__STDC__) || defined(__cplusplus) || defined(__OS2__) | ||
78 | # ifndef STDC | ||
79 | # define STDC | ||
80 | # endif | ||
81 | #endif | ||
82 | |||
83 | #ifndef STDC | ||
84 | # ifndef const /* cannot use !defined(STDC) && !defined(const) on Mac */ | ||
85 | # define const | ||
86 | # endif | ||
87 | #endif | ||
88 | |||
89 | /* Some Mac compilers merge all .h files incorrectly: */ | ||
90 | #if defined(__MWERKS__) || defined(applec) ||defined(THINK_C) ||defined(__SC__) | ||
91 | # define NO_DUMMY_DECL | ||
92 | #endif | ||
93 | |||
94 | /* Old Borland C incorrectly complains about missing returns: */ | ||
95 | #if defined(__BORLANDC__) && (__BORLANDC__ < 0x500) | ||
96 | # define NEED_DUMMY_RETURN | ||
97 | #endif | ||
98 | |||
99 | |||
100 | /* Maximum value for memLevel in deflateInit2 */ | ||
101 | #ifndef MAX_MEM_LEVEL | ||
102 | # ifdef MAXSEG_64K | ||
103 | # define MAX_MEM_LEVEL 8 | ||
104 | # else | ||
105 | # define MAX_MEM_LEVEL 9 | ||
106 | # endif | ||
107 | #endif | ||
108 | |||
109 | /* Maximum value for windowBits in deflateInit2 and inflateInit2. | ||
110 | * WARNING: reducing MAX_WBITS makes minigzip unable to extract .gz files | ||
111 | * created by gzip. (Files created by minigzip can still be extracted by | ||
112 | * gzip.) | ||
113 | */ | ||
114 | #ifndef MAX_WBITS | ||
115 | # define MAX_WBITS 15 /* 32K LZ77 window */ | ||
116 | #endif | ||
117 | |||
118 | /* The memory requirements for deflate are (in bytes): | ||
119 | (1 << (windowBits+2)) + (1 << (memLevel+9)) | ||
120 | that is: 128K for windowBits=15 + 128K for memLevel = 8 (default values) | ||
121 | plus a few kilobytes for small objects. For example, if you want to reduce | ||
122 | the default memory requirements from 256K to 128K, compile with | ||
123 | make CFLAGS="-O -DMAX_WBITS=14 -DMAX_MEM_LEVEL=7" | ||
124 | Of course this will generally degrade compression (there's no free lunch). | ||
125 | |||
126 | The memory requirements for inflate are (in bytes) 1 << windowBits | ||
127 | that is, 32K for windowBits=15 (default value) plus a few kilobytes | ||
128 | for small objects. | ||
129 | */ | ||
130 | |||
131 | /* Type declarations */ | ||
132 | |||
133 | #ifndef OF /* function prototypes */ | ||
134 | # ifdef STDC | ||
135 | # define OF(args) args | ||
136 | # else | ||
137 | # define OF(args) () | ||
138 | # endif | ||
139 | #endif | ||
140 | |||
141 | /* The following definitions for FAR are needed only for MSDOS mixed | ||
142 | * model programming (small or medium model with some far allocations). | ||
143 | * This was tested only with MSC; for other MSDOS compilers you may have | ||
144 | * to define NO_MEMCPY in zutil.h. If you don't need the mixed model, | ||
145 | * just define FAR to be empty. | ||
146 | */ | ||
147 | #if (defined(M_I86SM) || defined(M_I86MM)) && !defined(__32BIT__) | ||
148 | /* MSC small or medium model */ | ||
149 | # define SMALL_MEDIUM | ||
150 | # ifdef _MSC_VER | ||
151 | # define FAR _far | ||
152 | # else | ||
153 | # define FAR far | ||
154 | # endif | ||
155 | #endif | ||
156 | #if defined(__BORLANDC__) && (defined(__SMALL__) || defined(__MEDIUM__)) | ||
157 | # ifndef __32BIT__ | ||
158 | # define SMALL_MEDIUM | ||
159 | # define FAR _far | ||
160 | # endif | ||
161 | #endif | ||
162 | |||
163 | /* Compile with -DZLIB_DLL for Windows DLL support */ | ||
164 | #if defined(ZLIB_DLL) | ||
165 | # if defined(_WINDOWS) || defined(WINDOWS) | ||
166 | # ifdef FAR | ||
167 | # undef FAR | ||
168 | # endif | ||
169 | # include <windows.h> | ||
170 | # define ZEXPORT WINAPI | ||
171 | # ifdef WIN32 | ||
172 | # define ZEXPORTVA WINAPIV | ||
173 | # else | ||
174 | # define ZEXPORTVA FAR _cdecl _export | ||
175 | # endif | ||
176 | # endif | ||
177 | # if defined (__BORLANDC__) | ||
178 | # if (__BORLANDC__ >= 0x0500) && defined (WIN32) | ||
179 | # include <windows.h> | ||
180 | # define ZEXPORT __declspec(dllexport) WINAPI | ||
181 | # define ZEXPORTRVA __declspec(dllexport) WINAPIV | ||
182 | # else | ||
183 | # if defined (_Windows) && defined (__DLL__) | ||
184 | # define ZEXPORT _export | ||
185 | # define ZEXPORTVA _export | ||
186 | # endif | ||
187 | # endif | ||
188 | # endif | ||
189 | #endif | ||
190 | |||
191 | #if defined (__BEOS__) | ||
192 | # if defined (ZLIB_DLL) | ||
193 | # define ZEXTERN extern __declspec(dllexport) | ||
194 | # else | ||
195 | # define ZEXTERN extern __declspec(dllimport) | ||
196 | # endif | ||
197 | #endif | ||
198 | |||
199 | #ifndef ZEXPORT | ||
200 | # define ZEXPORT | ||
201 | #endif | ||
202 | #ifndef ZEXPORTVA | ||
203 | # define ZEXPORTVA | ||
204 | #endif | ||
205 | #ifndef ZEXTERN | ||
206 | # define ZEXTERN extern | ||
207 | #endif | ||
208 | |||
209 | #ifndef FAR | ||
210 | # define FAR | ||
211 | #endif | ||
212 | |||
213 | #if !defined(MACOS) && !defined(TARGET_OS_MAC) | ||
214 | typedef unsigned char Byte; /* 8 bits */ | ||
215 | #endif | ||
216 | typedef unsigned int uInt; /* 16 bits or more */ | ||
217 | typedef unsigned long uLong; /* 32 bits or more */ | ||
218 | |||
219 | #ifdef SMALL_MEDIUM | ||
220 | /* Borland C/C++ and some old MSC versions ignore FAR inside typedef */ | ||
221 | # define Bytef Byte FAR | ||
222 | #else | ||
223 | typedef Byte FAR Bytef; | ||
224 | #endif | ||
225 | typedef char FAR charf; | ||
226 | typedef int FAR intf; | ||
227 | typedef uInt FAR uIntf; | ||
228 | typedef uLong FAR uLongf; | ||
229 | |||
230 | #ifdef STDC | ||
231 | typedef void FAR *voidpf; | ||
232 | typedef void *voidp; | ||
233 | #else | ||
234 | typedef Byte FAR *voidpf; | ||
235 | typedef Byte *voidp; | ||
236 | #endif | ||
237 | |||
238 | #ifdef HAVE_UNISTD_H | ||
239 | # include <sys/types.h> /* for off_t */ | ||
240 | # include <unistd.h> /* for SEEK_* and off_t */ | ||
241 | # define z_off_t off_t | ||
242 | #endif | ||
243 | #ifndef SEEK_SET | ||
244 | # define SEEK_SET 0 /* Seek from beginning of file. */ | ||
245 | # define SEEK_CUR 1 /* Seek from current position. */ | ||
246 | # define SEEK_END 2 /* Set file pointer to EOF plus "offset" */ | ||
247 | #endif | ||
248 | #ifndef z_off_t | ||
249 | # define z_off_t long | ||
250 | #endif | ||
251 | |||
252 | /* MVS linker does not support external names larger than 8 bytes */ | ||
253 | #if defined(__MVS__) | ||
254 | # pragma map(deflateInit_,"DEIN") | ||
255 | # pragma map(deflateInit2_,"DEIN2") | ||
256 | # pragma map(deflateEnd,"DEEND") | ||
257 | # pragma map(inflateInit_,"ININ") | ||
258 | # pragma map(inflateInit2_,"ININ2") | ||
259 | # pragma map(inflateEnd,"INEND") | ||
260 | # pragma map(inflateSync,"INSY") | ||
261 | # pragma map(inflateSetDictionary,"INSEDI") | ||
262 | # pragma map(inflate_blocks,"INBL") | ||
263 | # pragma map(inflate_blocks_new,"INBLNE") | ||
264 | # pragma map(inflate_blocks_free,"INBLFR") | ||
265 | # pragma map(inflate_blocks_reset,"INBLRE") | ||
266 | # pragma map(inflate_codes_free,"INCOFR") | ||
267 | # pragma map(inflate_codes,"INCO") | ||
268 | # pragma map(inflate_fast,"INFA") | ||
269 | # pragma map(inflate_flush,"INFLU") | ||
270 | # pragma map(inflate_mask,"INMA") | ||
271 | # pragma map(inflate_set_dictionary,"INSEDI2") | ||
272 | # pragma map(inflate_copyright,"INCOPY") | ||
273 | # pragma map(inflate_trees_bits,"INTRBI") | ||
274 | # pragma map(inflate_trees_dynamic,"INTRDY") | ||
275 | # pragma map(inflate_trees_fixed,"INTRFI") | ||
276 | # pragma map(inflate_trees_free,"INTRFR") | ||
277 | #endif | ||
278 | |||
279 | #endif /* _ZCONF_H */ | ||
diff --git a/pwmanager/libcrypt/zlib/zlib.h b/pwmanager/libcrypt/zlib/zlib.h new file mode 100644 index 0000000..52cb529 --- a/dev/null +++ b/pwmanager/libcrypt/zlib/zlib.h | |||
@@ -0,0 +1,893 @@ | |||
1 | /* zlib.h -- interface of the 'zlib' general purpose compression library | ||
2 | version 1.1.4, March 11th, 2002 | ||
3 | |||
4 | Copyright (C) 1995-2002 Jean-loup Gailly and Mark Adler | ||
5 | |||
6 | This software is provided 'as-is', without any express or implied | ||
7 | warranty. In no event will the authors be held liable for any damages | ||
8 | arising from the use of this software. | ||
9 | |||
10 | Permission is granted to anyone to use this software for any purpose, | ||
11 | including commercial applications, and to alter it and redistribute it | ||
12 | freely, subject to the following restrictions: | ||
13 | |||
14 | 1. The origin of this software must not be misrepresented; you must not | ||
15 | claim that you wrote the original software. If you use this software | ||
16 | in a product, an acknowledgment in the product documentation would be | ||
17 | appreciated but is not required. | ||
18 | 2. Altered source versions must be plainly marked as such, and must not be | ||
19 | misrepresented as being the original software. | ||
20 | 3. This notice may not be removed or altered from any source distribution. | ||
21 | |||
22 | Jean-loup Gailly Mark Adler | ||
23 | jloup@gzip.org madler@alumni.caltech.edu | ||
24 | |||
25 | |||
26 | The data format used by the zlib library is described by RFCs (Request for | ||
27 | Comments) 1950 to 1952 in the files ftp://ds.internic.net/rfc/rfc1950.txt | ||
28 | (zlib format), rfc1951.txt (deflate format) and rfc1952.txt (gzip format). | ||
29 | */ | ||
30 | |||
31 | #ifndef _ZLIB_H | ||
32 | #define _ZLIB_H | ||
33 | |||
34 | #include "zconf.h" | ||
35 | |||
36 | #ifdef __cplusplus | ||
37 | extern "C" { | ||
38 | #endif | ||
39 | |||
40 | #define ZLIB_VERSION "1.1.4" | ||
41 | |||
42 | /* | ||
43 | The 'zlib' compression library provides in-memory compression and | ||
44 | decompression functions, including integrity checks of the uncompressed | ||
45 | data. This version of the library supports only one compression method | ||
46 | (deflation) but other algorithms will be added later and will have the same | ||
47 | stream interface. | ||
48 | |||
49 | Compression can be done in a single step if the buffers are large | ||
50 | enough (for example if an input file is mmap'ed), or can be done by | ||
51 | repeated calls of the compression function. In the latter case, the | ||
52 | application must provide more input and/or consume the output | ||
53 | (providing more output space) before each call. | ||
54 | |||
55 | The library also supports reading and writing files in gzip (.gz) format | ||
56 | with an interface similar to that of stdio. | ||
57 | |||
58 | The library does not install any signal handler. The decoder checks | ||
59 | the consistency of the compressed data, so the library should never | ||
60 | crash even in case of corrupted input. | ||
61 | */ | ||
62 | |||
63 | typedef voidpf (*alloc_func) OF((voidpf opaque, uInt items, uInt size)); | ||
64 | typedef void (*free_func) OF((voidpf opaque, voidpf address)); | ||
65 | |||
66 | struct internal_state; | ||
67 | |||
68 | typedef struct z_stream_s { | ||
69 | Bytef *next_in; /* next input byte */ | ||
70 | uInt avail_in; /* number of bytes available at next_in */ | ||
71 | uLong total_in; /* total nb of input bytes read so far */ | ||
72 | |||
73 | Bytef *next_out; /* next output byte should be put there */ | ||
74 | uInt avail_out; /* remaining free space at next_out */ | ||
75 | uLong total_out; /* total nb of bytes output so far */ | ||
76 | |||
77 | char *msg; /* last error message, NULL if no error */ | ||
78 | struct internal_state FAR *state; /* not visible by applications */ | ||
79 | |||
80 | alloc_func zalloc; /* used to allocate the internal state */ | ||
81 | free_func zfree; /* used to free the internal state */ | ||
82 | voidpf opaque; /* private data object passed to zalloc and zfree */ | ||
83 | |||
84 | int data_type; /* best guess about the data type: ascii or binary */ | ||
85 | uLong adler; /* adler32 value of the uncompressed data */ | ||
86 | uLong reserved; /* reserved for future use */ | ||
87 | } z_stream; | ||
88 | |||
89 | typedef z_stream FAR *z_streamp; | ||
90 | |||
91 | /* | ||
92 | The application must update next_in and avail_in when avail_in has | ||
93 | dropped to zero. It must update next_out and avail_out when avail_out | ||
94 | has dropped to zero. The application must initialize zalloc, zfree and | ||
95 | opaque before calling the init function. All other fields are set by the | ||
96 | compression library and must not be updated by the application. | ||
97 | |||
98 | The opaque value provided by the application will be passed as the first | ||
99 | parameter for calls of zalloc and zfree. This can be useful for custom | ||
100 | memory management. The compression library attaches no meaning to the | ||
101 | opaque value. | ||
102 | |||
103 | zalloc must return Z_NULL if there is not enough memory for the object. | ||
104 | If zlib is used in a multi-threaded application, zalloc and zfree must be | ||
105 | thread safe. | ||
106 | |||
107 | On 16-bit systems, the functions zalloc and zfree must be able to allocate | ||
108 | exactly 65536 bytes, but will not be required to allocate more than this | ||
109 | if the symbol MAXSEG_64K is defined (see zconf.h). WARNING: On MSDOS, | ||
110 | pointers returned by zalloc for objects of exactly 65536 bytes *must* | ||
111 | have their offset normalized to zero. The default allocation function | ||
112 | provided by this library ensures this (see zutil.c). To reduce memory | ||
113 | requirements and avoid any allocation of 64K objects, at the expense of | ||
114 | compression ratio, compile the library with -DMAX_WBITS=14 (see zconf.h). | ||
115 | |||
116 | The fields total_in and total_out can be used for statistics or | ||
117 | progress reports. After compression, total_in holds the total size of | ||
118 | the uncompressed data and may be saved for use in the decompressor | ||
119 | (particularly if the decompressor wants to decompress everything in | ||
120 | a single step). | ||
121 | */ | ||
122 | |||
123 | /* constants */ | ||
124 | |||
125 | #define Z_NO_FLUSH 0 | ||
126 | #define Z_PARTIAL_FLUSH 1 /* will be removed, use Z_SYNC_FLUSH instead */ | ||
127 | #define Z_SYNC_FLUSH 2 | ||
128 | #define Z_FULL_FLUSH 3 | ||
129 | #define Z_FINISH 4 | ||
130 | /* Allowed flush values; see deflate() below for details */ | ||
131 | |||
132 | #define Z_OK 0 | ||
133 | #define Z_STREAM_END 1 | ||
134 | #define Z_NEED_DICT 2 | ||
135 | #define Z_ERRNO (-1) | ||
136 | #define Z_STREAM_ERROR (-2) | ||
137 | #define Z_DATA_ERROR (-3) | ||
138 | #define Z_MEM_ERROR (-4) | ||
139 | #define Z_BUF_ERROR (-5) | ||
140 | #define Z_VERSION_ERROR (-6) | ||
141 | /* Return codes for the compression/decompression functions. Negative | ||
142 | * values are errors, positive values are used for special but normal events. | ||
143 | */ | ||
144 | |||
145 | #define Z_NO_COMPRESSION 0 | ||
146 | #define Z_BEST_SPEED 1 | ||
147 | #define Z_BEST_COMPRESSION 9 | ||
148 | #define Z_DEFAULT_COMPRESSION (-1) | ||
149 | /* compression levels */ | ||
150 | |||
151 | #define Z_FILTERED 1 | ||
152 | #define Z_HUFFMAN_ONLY 2 | ||
153 | #define Z_DEFAULT_STRATEGY 0 | ||
154 | /* compression strategy; see deflateInit2() below for details */ | ||
155 | |||
156 | #define Z_BINARY 0 | ||
157 | #define Z_ASCII 1 | ||
158 | #define Z_UNKNOWN 2 | ||
159 | /* Possible values of the data_type field */ | ||
160 | |||
161 | #define Z_DEFLATED 8 | ||
162 | /* The deflate compression method (the only one supported in this version) */ | ||
163 | |||
164 | #define Z_NULL 0 /* for initializing zalloc, zfree, opaque */ | ||
165 | |||
166 | #define zlib_version zlibVersion() | ||
167 | /* for compatibility with versions < 1.0.2 */ | ||
168 | |||
169 | /* basic functions */ | ||
170 | |||
171 | ZEXTERN const char * ZEXPORT zlibVersion OF((void)); | ||
172 | /* The application can compare zlibVersion and ZLIB_VERSION for consistency. | ||
173 | If the first character differs, the library code actually used is | ||
174 | not compatible with the zlib.h header file used by the application. | ||
175 | This check is automatically made by deflateInit and inflateInit. | ||
176 | */ | ||
177 | |||
178 | /* | ||
179 | ZEXTERN int ZEXPORT deflateInit OF((z_streamp strm, int level)); | ||
180 | |||
181 | Initializes the internal stream state for compression. The fields | ||
182 | zalloc, zfree and opaque must be initialized before by the caller. | ||
183 | If zalloc and zfree are set to Z_NULL, deflateInit updates them to | ||
184 | use default allocation functions. | ||
185 | |||
186 | The compression level must be Z_DEFAULT_COMPRESSION, or between 0 and 9: | ||
187 | 1 gives best speed, 9 gives best compression, 0 gives no compression at | ||
188 | all (the input data is simply copied a block at a time). | ||
189 | Z_DEFAULT_COMPRESSION requests a default compromise between speed and | ||
190 | compression (currently equivalent to level 6). | ||
191 | |||
192 | deflateInit returns Z_OK if success, Z_MEM_ERROR if there was not | ||
193 | enough memory, Z_STREAM_ERROR if level is not a valid compression level, | ||
194 | Z_VERSION_ERROR if the zlib library version (zlib_version) is incompatible | ||
195 | with the version assumed by the caller (ZLIB_VERSION). | ||
196 | msg is set to null if there is no error message. deflateInit does not | ||
197 | perform any compression: this will be done by deflate(). | ||
198 | */ | ||
199 | |||
200 | |||
201 | ZEXTERN int ZEXPORT deflate OF((z_streamp strm, int flush)); | ||
202 | /* | ||
203 | deflate compresses as much data as possible, and stops when the input | ||
204 | buffer becomes empty or the output buffer becomes full. It may introduce some | ||
205 | output latency (reading input without producing any output) except when | ||
206 | forced to flush. | ||
207 | |||
208 | The detailed semantics are as follows. deflate performs one or both of the | ||
209 | following actions: | ||
210 | |||
211 | - Compress more input starting at next_in and update next_in and avail_in | ||
212 | accordingly. If not all input can be processed (because there is not | ||
213 | enough room in the output buffer), next_in and avail_in are updated and | ||
214 | processing will resume at this point for the next call of deflate(). | ||
215 | |||
216 | - Provide more output starting at next_out and update next_out and avail_out | ||
217 | accordingly. This action is forced if the parameter flush is non zero. | ||
218 | Forcing flush frequently degrades the compression ratio, so this parameter | ||
219 | should be set only when necessary (in interactive applications). | ||
220 | Some output may be provided even if flush is not set. | ||
221 | |||
222 | Before the call of deflate(), the application should ensure that at least | ||
223 | one of the actions is possible, by providing more input and/or consuming | ||
224 | more output, and updating avail_in or avail_out accordingly; avail_out | ||
225 | should never be zero before the call. The application can consume the | ||
226 | compressed output when it wants, for example when the output buffer is full | ||
227 | (avail_out == 0), or after each call of deflate(). If deflate returns Z_OK | ||
228 | and with zero avail_out, it must be called again after making room in the | ||
229 | output buffer because there might be more output pending. | ||
230 | |||
231 | If the parameter flush is set to Z_SYNC_FLUSH, all pending output is | ||
232 | flushed to the output buffer and the output is aligned on a byte boundary, so | ||
233 | that the decompressor can get all input data available so far. (In particular | ||
234 | avail_in is zero after the call if enough output space has been provided | ||
235 | before the call.) Flushing may degrade compression for some compression | ||
236 | algorithms and so it should be used only when necessary. | ||
237 | |||
238 | If flush is set to Z_FULL_FLUSH, all output is flushed as with | ||
239 | Z_SYNC_FLUSH, and the compression state is reset so that decompression can | ||
240 | restart from this point if previous compressed data has been damaged or if | ||
241 | random access is desired. Using Z_FULL_FLUSH too often can seriously degrade | ||
242 | the compression. | ||
243 | |||
244 | If deflate returns with avail_out == 0, this function must be called again | ||
245 | with the same value of the flush parameter and more output space (updated | ||
246 | avail_out), until the flush is complete (deflate returns with non-zero | ||
247 | avail_out). | ||
248 | |||
249 | If the parameter flush is set to Z_FINISH, pending input is processed, | ||
250 | pending output is flushed and deflate returns with Z_STREAM_END if there | ||
251 | was enough output space; if deflate returns with Z_OK, this function must be | ||
252 | called again with Z_FINISH and more output space (updated avail_out) but no | ||
253 | more input data, until it returns with Z_STREAM_END or an error. After | ||
254 | deflate has returned Z_STREAM_END, the only possible operations on the | ||
255 | stream are deflateReset or deflateEnd. | ||
256 | |||
257 | Z_FINISH can be used immediately after deflateInit if all the compression | ||
258 | is to be done in a single step. In this case, avail_out must be at least | ||
259 | 0.1% larger than avail_in plus 12 bytes. If deflate does not return | ||
260 | Z_STREAM_END, then it must be called again as described above. | ||
261 | |||
262 | deflate() sets strm->adler to the adler32 checksum of all input read | ||
263 | so far (that is, total_in bytes). | ||
264 | |||
265 | deflate() may update data_type if it can make a good guess about | ||
266 | the input data type (Z_ASCII or Z_BINARY). In doubt, the data is considered | ||
267 | binary. This field is only for information purposes and does not affect | ||
268 | the compression algorithm in any manner. | ||
269 | |||
270 | deflate() returns Z_OK if some progress has been made (more input | ||
271 | processed or more output produced), Z_STREAM_END if all input has been | ||
272 | consumed and all output has been produced (only when flush is set to | ||
273 | Z_FINISH), Z_STREAM_ERROR if the stream state was inconsistent (for example | ||
274 | if next_in or next_out was NULL), Z_BUF_ERROR if no progress is possible | ||
275 | (for example avail_in or avail_out was zero). | ||
276 | */ | ||
277 | |||
278 | |||
279 | ZEXTERN int ZEXPORT deflateEnd OF((z_streamp strm)); | ||
280 | /* | ||
281 | All dynamically allocated data structures for this stream are freed. | ||
282 | This function discards any unprocessed input and does not flush any | ||
283 | pending output. | ||
284 | |||
285 | deflateEnd returns Z_OK if success, Z_STREAM_ERROR if the | ||
286 | stream state was inconsistent, Z_DATA_ERROR if the stream was freed | ||
287 | prematurely (some input or output was discarded). In the error case, | ||
288 | msg may be set but then points to a static string (which must not be | ||
289 | deallocated). | ||
290 | */ | ||
291 | |||
292 | |||
293 | /* | ||
294 | ZEXTERN int ZEXPORT inflateInit OF((z_streamp strm)); | ||
295 | |||
296 | Initializes the internal stream state for decompression. The fields | ||
297 | next_in, avail_in, zalloc, zfree and opaque must be initialized before by | ||
298 | the caller. If next_in is not Z_NULL and avail_in is large enough (the exact | ||
299 | value depends on the compression method), inflateInit determines the | ||
300 | compression method from the zlib header and allocates all data structures | ||
301 | accordingly; otherwise the allocation will be deferred to the first call of | ||
302 | inflate. If zalloc and zfree are set to Z_NULL, inflateInit updates them to | ||
303 | use default allocation functions. | ||
304 | |||
305 | inflateInit returns Z_OK if success, Z_MEM_ERROR if there was not enough | ||
306 | memory, Z_VERSION_ERROR if the zlib library version is incompatible with the | ||
307 | version assumed by the caller. msg is set to null if there is no error | ||
308 | message. inflateInit does not perform any decompression apart from reading | ||
309 | the zlib header if present: this will be done by inflate(). (So next_in and | ||
310 | avail_in may be modified, but next_out and avail_out are unchanged.) | ||
311 | */ | ||
312 | |||
313 | |||
314 | ZEXTERN int ZEXPORT inflate OF((z_streamp strm, int flush)); | ||
315 | /* | ||
316 | inflate decompresses as much data as possible, and stops when the input | ||
317 | buffer becomes empty or the output buffer becomes full. It may some | ||
318 | introduce some output latency (reading input without producing any output) | ||
319 | except when forced to flush. | ||
320 | |||
321 | The detailed semantics are as follows. inflate performs one or both of the | ||
322 | following actions: | ||
323 | |||
324 | - Decompress more input starting at next_in and update next_in and avail_in | ||
325 | accordingly. If not all input can be processed (because there is not | ||
326 | enough room in the output buffer), next_in is updated and processing | ||
327 | will resume at this point for the next call of inflate(). | ||
328 | |||
329 | - Provide more output starting at next_out and update next_out and avail_out | ||
330 | accordingly. inflate() provides as much output as possible, until there | ||
331 | is no more input data or no more space in the output buffer (see below | ||
332 | about the flush parameter). | ||
333 | |||
334 | Before the call of inflate(), the application should ensure that at least | ||
335 | one of the actions is possible, by providing more input and/or consuming | ||
336 | more output, and updating the next_* and avail_* values accordingly. | ||
337 | The application can consume the uncompressed output when it wants, for | ||
338 | example when the output buffer is full (avail_out == 0), or after each | ||
339 | call of inflate(). If inflate returns Z_OK and with zero avail_out, it | ||
340 | must be called again after making room in the output buffer because there | ||
341 | might be more output pending. | ||
342 | |||
343 | If the parameter flush is set to Z_SYNC_FLUSH, inflate flushes as much | ||
344 | output as possible to the output buffer. The flushing behavior of inflate is | ||
345 | not specified for values of the flush parameter other than Z_SYNC_FLUSH | ||
346 | and Z_FINISH, but the current implementation actually flushes as much output | ||
347 | as possible anyway. | ||
348 | |||
349 | inflate() should normally be called until it returns Z_STREAM_END or an | ||
350 | error. However if all decompression is to be performed in a single step | ||
351 | (a single call of inflate), the parameter flush should be set to | ||
352 | Z_FINISH. In this case all pending input is processed and all pending | ||
353 | output is flushed; avail_out must be large enough to hold all the | ||
354 | uncompressed data. (The size of the uncompressed data may have been saved | ||
355 | by the compressor for this purpose.) The next operation on this stream must | ||
356 | be inflateEnd to deallocate the decompression state. The use of Z_FINISH | ||
357 | is never required, but can be used to inform inflate that a faster routine | ||
358 | may be used for the single inflate() call. | ||
359 | |||
360 | If a preset dictionary is needed at this point (see inflateSetDictionary | ||
361 | below), inflate sets strm-adler to the adler32 checksum of the | ||
362 | dictionary chosen by the compressor and returns Z_NEED_DICT; otherwise | ||
363 | it sets strm->adler to the adler32 checksum of all output produced | ||
364 | so far (that is, total_out bytes) and returns Z_OK, Z_STREAM_END or | ||
365 | an error code as described below. At the end of the stream, inflate() | ||
366 | checks that its computed adler32 checksum is equal to that saved by the | ||
367 | compressor and returns Z_STREAM_END only if the checksum is correct. | ||
368 | |||
369 | inflate() returns Z_OK if some progress has been made (more input processed | ||
370 | or more output produced), Z_STREAM_END if the end of the compressed data has | ||
371 | been reached and all uncompressed output has been produced, Z_NEED_DICT if a | ||
372 | preset dictionary is needed at this point, Z_DATA_ERROR if the input data was | ||
373 | corrupted (input stream not conforming to the zlib format or incorrect | ||
374 | adler32 checksum), Z_STREAM_ERROR if the stream structure was inconsistent | ||
375 | (for example if next_in or next_out was NULL), Z_MEM_ERROR if there was not | ||
376 | enough memory, Z_BUF_ERROR if no progress is possible or if there was not | ||
377 | enough room in the output buffer when Z_FINISH is used. In the Z_DATA_ERROR | ||
378 | case, the application may then call inflateSync to look for a good | ||
379 | compression block. | ||
380 | */ | ||
381 | |||
382 | |||
383 | ZEXTERN int ZEXPORT inflateEnd OF((z_streamp strm)); | ||
384 | /* | ||
385 | All dynamically allocated data structures for this stream are freed. | ||
386 | This function discards any unprocessed input and does not flush any | ||
387 | pending output. | ||
388 | |||
389 | inflateEnd returns Z_OK if success, Z_STREAM_ERROR if the stream state | ||
390 | was inconsistent. In the error case, msg may be set but then points to a | ||
391 | static string (which must not be deallocated). | ||
392 | */ | ||
393 | |||
394 | /* Advanced functions */ | ||
395 | |||
396 | /* | ||
397 | The following functions are needed only in some special applications. | ||
398 | */ | ||
399 | |||
400 | /* | ||
401 | ZEXTERN int ZEXPORT deflateInit2 OF((z_streamp strm, | ||
402 | int level, | ||
403 | int method, | ||
404 | int windowBits, | ||
405 | int memLevel, | ||
406 | int strategy)); | ||
407 | |||
408 | This is another version of deflateInit with more compression options. The | ||
409 | fields next_in, zalloc, zfree and opaque must be initialized before by | ||
410 | the caller. | ||
411 | |||
412 | The method parameter is the compression method. It must be Z_DEFLATED in | ||
413 | this version of the library. | ||
414 | |||
415 | The windowBits parameter is the base two logarithm of the window size | ||
416 | (the size of the history buffer). It should be in the range 8..15 for this | ||
417 | version of the library. Larger values of this parameter result in better | ||
418 | compression at the expense of memory usage. The default value is 15 if | ||
419 | deflateInit is used instead. | ||
420 | |||
421 | The memLevel parameter specifies how much memory should be allocated | ||
422 | for the internal compression state. memLevel=1 uses minimum memory but | ||
423 | is slow and reduces compression ratio; memLevel=9 uses maximum memory | ||
424 | for optimal speed. The default value is 8. See zconf.h for total memory | ||
425 | usage as a function of windowBits and memLevel. | ||
426 | |||
427 | The strategy parameter is used to tune the compression algorithm. Use the | ||
428 | value Z_DEFAULT_STRATEGY for normal data, Z_FILTERED for data produced by a | ||
429 | filter (or predictor), or Z_HUFFMAN_ONLY to force Huffman encoding only (no | ||
430 | string match). Filtered data consists mostly of small values with a | ||
431 | somewhat random distribution. In this case, the compression algorithm is | ||
432 | tuned to compress them better. The effect of Z_FILTERED is to force more | ||
433 | Huffman coding and less string matching; it is somewhat intermediate | ||
434 | between Z_DEFAULT and Z_HUFFMAN_ONLY. The strategy parameter only affects | ||
435 | the compression ratio but not the correctness of the compressed output even | ||
436 | if it is not set appropriately. | ||
437 | |||
438 | deflateInit2 returns Z_OK if success, Z_MEM_ERROR if there was not enough | ||
439 | memory, Z_STREAM_ERROR if a parameter is invalid (such as an invalid | ||
440 | method). msg is set to null if there is no error message. deflateInit2 does | ||
441 | not perform any compression: this will be done by deflate(). | ||
442 | */ | ||
443 | |||
444 | ZEXTERN int ZEXPORT deflateSetDictionary OF((z_streamp strm, | ||
445 | const Bytef *dictionary, | ||
446 | uInt dictLength)); | ||
447 | /* | ||
448 | Initializes the compression dictionary from the given byte sequence | ||
449 | without producing any compressed output. This function must be called | ||
450 | immediately after deflateInit, deflateInit2 or deflateReset, before any | ||
451 | call of deflate. The compressor and decompressor must use exactly the same | ||
452 | dictionary (see inflateSetDictionary). | ||
453 | |||
454 | The dictionary should consist of strings (byte sequences) that are likely | ||
455 | to be encountered later in the data to be compressed, with the most commonly | ||
456 | used strings preferably put towards the end of the dictionary. Using a | ||
457 | dictionary is most useful when the data to be compressed is short and can be | ||
458 | predicted with good accuracy; the data can then be compressed better than | ||
459 | with the default empty dictionary. | ||
460 | |||
461 | Depending on the size of the compression data structures selected by | ||
462 | deflateInit or deflateInit2, a part of the dictionary may in effect be | ||
463 | discarded, for example if the dictionary is larger than the window size in | ||
464 | deflate or deflate2. Thus the strings most likely to be useful should be | ||
465 | put at the end of the dictionary, not at the front. | ||
466 | |||
467 | Upon return of this function, strm->adler is set to the Adler32 value | ||
468 | of the dictionary; the decompressor may later use this value to determine | ||
469 | which dictionary has been used by the compressor. (The Adler32 value | ||
470 | applies to the whole dictionary even if only a subset of the dictionary is | ||
471 | actually used by the compressor.) | ||
472 | |||
473 | deflateSetDictionary returns Z_OK if success, or Z_STREAM_ERROR if a | ||
474 | parameter is invalid (such as NULL dictionary) or the stream state is | ||
475 | inconsistent (for example if deflate has already been called for this stream | ||
476 | or if the compression method is bsort). deflateSetDictionary does not | ||
477 | perform any compression: this will be done by deflate(). | ||
478 | */ | ||
479 | |||
480 | ZEXTERN int ZEXPORT deflateCopy OF((z_streamp dest, | ||
481 | z_streamp source)); | ||
482 | /* | ||
483 | Sets the destination stream as a complete copy of the source stream. | ||
484 | |||
485 | This function can be useful when several compression strategies will be | ||
486 | tried, for example when there are several ways of pre-processing the input | ||
487 | data with a filter. The streams that will be discarded should then be freed | ||
488 | by calling deflateEnd. Note that deflateCopy duplicates the internal | ||
489 | compression state which can be quite large, so this strategy is slow and | ||
490 | can consume lots of memory. | ||
491 | |||
492 | deflateCopy returns Z_OK if success, Z_MEM_ERROR if there was not | ||
493 | enough memory, Z_STREAM_ERROR if the source stream state was inconsistent | ||
494 | (such as zalloc being NULL). msg is left unchanged in both source and | ||
495 | destination. | ||
496 | */ | ||
497 | |||
498 | ZEXTERN int ZEXPORT deflateReset OF((z_streamp strm)); | ||
499 | /* | ||
500 | This function is equivalent to deflateEnd followed by deflateInit, | ||
501 | but does not free and reallocate all the internal compression state. | ||
502 | The stream will keep the same compression level and any other attributes | ||
503 | that may have been set by deflateInit2. | ||
504 | |||
505 | deflateReset returns Z_OK if success, or Z_STREAM_ERROR if the source | ||
506 | stream state was inconsistent (such as zalloc or state being NULL). | ||
507 | */ | ||
508 | |||
509 | ZEXTERN int ZEXPORT deflateParams OF((z_streamp strm, | ||
510 | int level, | ||
511 | int strategy)); | ||
512 | /* | ||
513 | Dynamically update the compression level and compression strategy. The | ||
514 | interpretation of level and strategy is as in deflateInit2. This can be | ||
515 | used to switch between compression and straight copy of the input data, or | ||
516 | to switch to a different kind of input data requiring a different | ||
517 | strategy. If the compression level is changed, the input available so far | ||
518 | is compressed with the old level (and may be flushed); the new level will | ||
519 | take effect only at the next call of deflate(). | ||
520 | |||
521 | Before the call of deflateParams, the stream state must be set as for | ||
522 | a call of deflate(), since the currently available input may have to | ||
523 | be compressed and flushed. In particular, strm->avail_out must be non-zero. | ||
524 | |||
525 | deflateParams returns Z_OK if success, Z_STREAM_ERROR if the source | ||
526 | stream state was inconsistent or if a parameter was invalid, Z_BUF_ERROR | ||
527 | if strm->avail_out was zero. | ||
528 | */ | ||
529 | |||
530 | /* | ||
531 | ZEXTERN int ZEXPORT inflateInit2 OF((z_streamp strm, | ||
532 | int windowBits)); | ||
533 | |||
534 | This is another version of inflateInit with an extra parameter. The | ||
535 | fields next_in, avail_in, zalloc, zfree and opaque must be initialized | ||
536 | before by the caller. | ||
537 | |||
538 | The windowBits parameter is the base two logarithm of the maximum window | ||
539 | size (the size of the history buffer). It should be in the range 8..15 for | ||
540 | this version of the library. The default value is 15 if inflateInit is used | ||
541 | instead. If a compressed stream with a larger window size is given as | ||
542 | input, inflate() will return with the error code Z_DATA_ERROR instead of | ||
543 | trying to allocate a larger window. | ||
544 | |||
545 | inflateInit2 returns Z_OK if success, Z_MEM_ERROR if there was not enough | ||
546 | memory, Z_STREAM_ERROR if a parameter is invalid (such as a negative | ||
547 | memLevel). msg is set to null if there is no error message. inflateInit2 | ||
548 | does not perform any decompression apart from reading the zlib header if | ||
549 | present: this will be done by inflate(). (So next_in and avail_in may be | ||
550 | modified, but next_out and avail_out are unchanged.) | ||
551 | */ | ||
552 | |||
553 | ZEXTERN int ZEXPORT inflateSetDictionary OF((z_streamp strm, | ||
554 | const Bytef *dictionary, | ||
555 | uInt dictLength)); | ||
556 | /* | ||
557 | Initializes the decompression dictionary from the given uncompressed byte | ||
558 | sequence. This function must be called immediately after a call of inflate | ||
559 | if this call returned Z_NEED_DICT. The dictionary chosen by the compressor | ||
560 | can be determined from the Adler32 value returned by this call of | ||
561 | inflate. The compressor and decompressor must use exactly the same | ||
562 | dictionary (see deflateSetDictionary). | ||
563 | |||
564 | inflateSetDictionary returns Z_OK if success, Z_STREAM_ERROR if a | ||
565 | parameter is invalid (such as NULL dictionary) or the stream state is | ||
566 | inconsistent, Z_DATA_ERROR if the given dictionary doesn't match the | ||
567 | expected one (incorrect Adler32 value). inflateSetDictionary does not | ||
568 | perform any decompression: this will be done by subsequent calls of | ||
569 | inflate(). | ||
570 | */ | ||
571 | |||
572 | ZEXTERN int ZEXPORT inflateSync OF((z_streamp strm)); | ||
573 | /* | ||
574 | Skips invalid compressed data until a full flush point (see above the | ||
575 | description of deflate with Z_FULL_FLUSH) can be found, or until all | ||
576 | available input is skipped. No output is provided. | ||
577 | |||
578 | inflateSync returns Z_OK if a full flush point has been found, Z_BUF_ERROR | ||
579 | if no more input was provided, Z_DATA_ERROR if no flush point has been found, | ||
580 | or Z_STREAM_ERROR if the stream structure was inconsistent. In the success | ||
581 | case, the application may save the current current value of total_in which | ||
582 | indicates where valid compressed data was found. In the error case, the | ||
583 | application may repeatedly call inflateSync, providing more input each time, | ||
584 | until success or end of the input data. | ||
585 | */ | ||
586 | |||
587 | ZEXTERN int ZEXPORT inflateReset OF((z_streamp strm)); | ||
588 | /* | ||
589 | This function is equivalent to inflateEnd followed by inflateInit, | ||
590 | but does not free and reallocate all the internal decompression state. | ||
591 | The stream will keep attributes that may have been set by inflateInit2. | ||
592 | |||
593 | inflateReset returns Z_OK if success, or Z_STREAM_ERROR if the source | ||
594 | stream state was inconsistent (such as zalloc or state being NULL). | ||
595 | */ | ||
596 | |||
597 | |||
598 | /* utility functions */ | ||
599 | |||
600 | /* | ||
601 | The following utility functions are implemented on top of the | ||
602 | basic stream-oriented functions. To simplify the interface, some | ||
603 | default options are assumed (compression level and memory usage, | ||
604 | standard memory allocation functions). The source code of these | ||
605 | utility functions can easily be modified if you need special options. | ||
606 | */ | ||
607 | |||
608 | ZEXTERN int ZEXPORT compress OF((Bytef *dest, uLongf *destLen, | ||
609 | const Bytef *source, uLong sourceLen)); | ||
610 | /* | ||
611 | Compresses the source buffer into the destination buffer. sourceLen is | ||
612 | the byte length of the source buffer. Upon entry, destLen is the total | ||
613 | size of the destination buffer, which must be at least 0.1% larger than | ||
614 | sourceLen plus 12 bytes. Upon exit, destLen is the actual size of the | ||
615 | compressed buffer. | ||
616 | This function can be used to compress a whole file at once if the | ||
617 | input file is mmap'ed. | ||
618 | compress returns Z_OK if success, Z_MEM_ERROR if there was not | ||
619 | enough memory, Z_BUF_ERROR if there was not enough room in the output | ||
620 | buffer. | ||
621 | */ | ||
622 | |||
623 | ZEXTERN int ZEXPORT compress2 OF((Bytef *dest, uLongf *destLen, | ||
624 | const Bytef *source, uLong sourceLen, | ||
625 | int level)); | ||
626 | /* | ||
627 | Compresses the source buffer into the destination buffer. The level | ||
628 | parameter has the same meaning as in deflateInit. sourceLen is the byte | ||
629 | length of the source buffer. Upon entry, destLen is the total size of the | ||
630 | destination buffer, which must be at least 0.1% larger than sourceLen plus | ||
631 | 12 bytes. Upon exit, destLen is the actual size of the compressed buffer. | ||
632 | |||
633 | compress2 returns Z_OK if success, Z_MEM_ERROR if there was not enough | ||
634 | memory, Z_BUF_ERROR if there was not enough room in the output buffer, | ||
635 | Z_STREAM_ERROR if the level parameter is invalid. | ||
636 | */ | ||
637 | |||
638 | ZEXTERN int ZEXPORT uncompress OF((Bytef *dest, uLongf *destLen, | ||
639 | const Bytef *source, uLong sourceLen)); | ||
640 | /* | ||
641 | Decompresses the source buffer into the destination buffer. sourceLen is | ||
642 | the byte length of the source buffer. Upon entry, destLen is the total | ||
643 | size of the destination buffer, which must be large enough to hold the | ||
644 | entire uncompressed data. (The size of the uncompressed data must have | ||
645 | been saved previously by the compressor and transmitted to the decompressor | ||
646 | by some mechanism outside the scope of this compression library.) | ||
647 | Upon exit, destLen is the actual size of the compressed buffer. | ||
648 | This function can be used to decompress a whole file at once if the | ||
649 | input file is mmap'ed. | ||
650 | |||
651 | uncompress returns Z_OK if success, Z_MEM_ERROR if there was not | ||
652 | enough memory, Z_BUF_ERROR if there was not enough room in the output | ||
653 | buffer, or Z_DATA_ERROR if the input data was corrupted. | ||
654 | */ | ||
655 | |||
656 | |||
657 | typedef voidp gzFile; | ||
658 | |||
659 | ZEXTERN gzFile ZEXPORT gzopen OF((const char *path, const char *mode)); | ||
660 | /* | ||
661 | Opens a gzip (.gz) file for reading or writing. The mode parameter | ||
662 | is as in fopen ("rb" or "wb") but can also include a compression level | ||
663 | ("wb9") or a strategy: 'f' for filtered data as in "wb6f", 'h' for | ||
664 | Huffman only compression as in "wb1h". (See the description | ||
665 | of deflateInit2 for more information about the strategy parameter.) | ||
666 | |||
667 | gzopen can be used to read a file which is not in gzip format; in this | ||
668 | case gzread will directly read from the file without decompression. | ||
669 | |||
670 | gzopen returns NULL if the file could not be opened or if there was | ||
671 | insufficient memory to allocate the (de)compression state; errno | ||
672 | can be checked to distinguish the two cases (if errno is zero, the | ||
673 | zlib error is Z_MEM_ERROR). */ | ||
674 | |||
675 | ZEXTERN gzFile ZEXPORT gzdopen OF((int fd, const char *mode)); | ||
676 | /* | ||
677 | gzdopen() associates a gzFile with the file descriptor fd. File | ||
678 | descriptors are obtained from calls like open, dup, creat, pipe or | ||
679 | fileno (in the file has been previously opened with fopen). | ||
680 | The mode parameter is as in gzopen. | ||
681 | The next call of gzclose on the returned gzFile will also close the | ||
682 | file descriptor fd, just like fclose(fdopen(fd), mode) closes the file | ||
683 | descriptor fd. If you want to keep fd open, use gzdopen(dup(fd), mode). | ||
684 | gzdopen returns NULL if there was insufficient memory to allocate | ||
685 | the (de)compression state. | ||
686 | */ | ||
687 | |||
688 | ZEXTERN int ZEXPORT gzsetparams OF((gzFile file, int level, int strategy)); | ||
689 | /* | ||
690 | Dynamically update the compression level or strategy. See the description | ||
691 | of deflateInit2 for the meaning of these parameters. | ||
692 | gzsetparams returns Z_OK if success, or Z_STREAM_ERROR if the file was not | ||
693 | opened for writing. | ||
694 | */ | ||
695 | |||
696 | ZEXTERN int ZEXPORT gzread OF((gzFile file, voidp buf, unsigned len)); | ||
697 | /* | ||
698 | Reads the given number of uncompressed bytes from the compressed file. | ||
699 | If the input file was not in gzip format, gzread copies the given number | ||
700 | of bytes into the buffer. | ||
701 | gzread returns the number of uncompressed bytes actually read (0 for | ||
702 | end of file, -1 for error). */ | ||
703 | |||
704 | ZEXTERN int ZEXPORT gzwrite OF((gzFile file, | ||
705 | const voidp buf, unsigned len)); | ||
706 | /* | ||
707 | Writes the given number of uncompressed bytes into the compressed file. | ||
708 | gzwrite returns the number of uncompressed bytes actually written | ||
709 | (0 in case of error). | ||
710 | */ | ||
711 | |||
712 | ZEXTERN int ZEXPORTVA gzprintf OF((gzFile file, const char *format, ...)); | ||
713 | /* | ||
714 | Converts, formats, and writes the args to the compressed file under | ||
715 | control of the format string, as in fprintf. gzprintf returns the number of | ||
716 | uncompressed bytes actually written (0 in case of error). | ||
717 | */ | ||
718 | |||
719 | ZEXTERN int ZEXPORT gzputs OF((gzFile file, const char *s)); | ||
720 | /* | ||
721 | Writes the given null-terminated string to the compressed file, excluding | ||
722 | the terminating null character. | ||
723 | gzputs returns the number of characters written, or -1 in case of error. | ||
724 | */ | ||
725 | |||
726 | ZEXTERN char * ZEXPORT gzgets OF((gzFile file, char *buf, int len)); | ||
727 | /* | ||
728 | Reads bytes from the compressed file until len-1 characters are read, or | ||
729 | a newline character is read and transferred to buf, or an end-of-file | ||
730 | condition is encountered. The string is then terminated with a null | ||
731 | character. | ||
732 | gzgets returns buf, or Z_NULL in case of error. | ||
733 | */ | ||
734 | |||
735 | ZEXTERN int ZEXPORT gzputc OF((gzFile file, int c)); | ||
736 | /* | ||
737 | Writes c, converted to an unsigned char, into the compressed file. | ||
738 | gzputc returns the value that was written, or -1 in case of error. | ||
739 | */ | ||
740 | |||
741 | ZEXTERN int ZEXPORT gzgetc OF((gzFile file)); | ||
742 | /* | ||
743 | Reads one byte from the compressed file. gzgetc returns this byte | ||
744 | or -1 in case of end of file or error. | ||
745 | */ | ||
746 | |||
747 | ZEXTERN int ZEXPORT gzflush OF((gzFile file, int flush)); | ||
748 | /* | ||
749 | Flushes all pending output into the compressed file. The parameter | ||
750 | flush is as in the deflate() function. The return value is the zlib | ||
751 | error number (see function gzerror below). gzflush returns Z_OK if | ||
752 | the flush parameter is Z_FINISH and all output could be flushed. | ||
753 | gzflush should be called only when strictly necessary because it can | ||
754 | degrade compression. | ||
755 | */ | ||
756 | |||
757 | ZEXTERN z_off_t ZEXPORT gzseek OF((gzFile file, | ||
758 | z_off_t offset, int whence)); | ||
759 | /* | ||
760 | Sets the starting position for the next gzread or gzwrite on the | ||
761 | given compressed file. The offset represents a number of bytes in the | ||
762 | uncompressed data stream. The whence parameter is defined as in lseek(2); | ||
763 | the value SEEK_END is not supported. | ||
764 | If the file is opened for reading, this function is emulated but can be | ||
765 | extremely slow. If the file is opened for writing, only forward seeks are | ||
766 | supported; gzseek then compresses a sequence of zeroes up to the new | ||
767 | starting position. | ||
768 | |||
769 | gzseek returns the resulting offset location as measured in bytes from | ||
770 | the beginning of the uncompressed stream, or -1 in case of error, in | ||
771 | particular if the file is opened for writing and the new starting position | ||
772 | would be before the current position. | ||
773 | */ | ||
774 | |||
775 | ZEXTERN int ZEXPORT gzrewind OF((gzFile file)); | ||
776 | /* | ||
777 | Rewinds the given file. This function is supported only for reading. | ||
778 | |||
779 | gzrewind(file) is equivalent to (int)gzseek(file, 0L, SEEK_SET) | ||
780 | */ | ||
781 | |||
782 | ZEXTERN z_off_t ZEXPORT gztell OF((gzFile file)); | ||
783 | /* | ||
784 | Returns the starting position for the next gzread or gzwrite on the | ||
785 | given compressed file. This position represents a number of bytes in the | ||
786 | uncompressed data stream. | ||
787 | |||
788 | gztell(file) is equivalent to gzseek(file, 0L, SEEK_CUR) | ||
789 | */ | ||
790 | |||
791 | ZEXTERN int ZEXPORT gzeof OF((gzFile file)); | ||
792 | /* | ||
793 | Returns 1 when EOF has previously been detected reading the given | ||
794 | input stream, otherwise zero. | ||
795 | */ | ||
796 | |||
797 | ZEXTERN int ZEXPORT gzclose OF((gzFile file)); | ||
798 | /* | ||
799 | Flushes all pending output if necessary, closes the compressed file | ||
800 | and deallocates all the (de)compression state. The return value is the zlib | ||
801 | error number (see function gzerror below). | ||
802 | */ | ||
803 | |||
804 | ZEXTERN const char * ZEXPORT gzerror OF((gzFile file, int *errnum)); | ||
805 | /* | ||
806 | Returns the error message for the last error which occurred on the | ||
807 | given compressed file. errnum is set to zlib error number. If an | ||
808 | error occurred in the file system and not in the compression library, | ||
809 | errnum is set to Z_ERRNO and the application may consult errno | ||
810 | to get the exact error code. | ||
811 | */ | ||
812 | |||
813 | /* checksum functions */ | ||
814 | |||
815 | /* | ||
816 | These functions are not related to compression but are exported | ||
817 | anyway because they might be useful in applications using the | ||
818 | compression library. | ||
819 | */ | ||
820 | |||
821 | ZEXTERN uLong ZEXPORT adler32 OF((uLong adler, const Bytef *buf, uInt len)); | ||
822 | |||
823 | /* | ||
824 | Update a running Adler-32 checksum with the bytes buf[0..len-1] and | ||
825 | return the updated checksum. If buf is NULL, this function returns | ||
826 | the required initial value for the checksum. | ||
827 | An Adler-32 checksum is almost as reliable as a CRC32 but can be computed | ||
828 | much faster. Usage example: | ||
829 | |||
830 | uLong adler = adler32(0L, Z_NULL, 0); | ||
831 | |||
832 | while (read_buffer(buffer, length) != EOF) { | ||
833 | adler = adler32(adler, buffer, length); | ||
834 | } | ||
835 | if (adler != original_adler) error(); | ||
836 | */ | ||
837 | |||
838 | ZEXTERN uLong ZEXPORT crc32 OF((uLong crc, const Bytef *buf, uInt len)); | ||
839 | /* | ||
840 | Update a running crc with the bytes buf[0..len-1] and return the updated | ||
841 | crc. If buf is NULL, this function returns the required initial value | ||
842 | for the crc. Pre- and post-conditioning (one's complement) is performed | ||
843 | within this function so it shouldn't be done by the application. | ||
844 | Usage example: | ||
845 | |||
846 | uLong crc = crc32(0L, Z_NULL, 0); | ||
847 | |||
848 | while (read_buffer(buffer, length) != EOF) { | ||
849 | crc = crc32(crc, buffer, length); | ||
850 | } | ||
851 | if (crc != original_crc) error(); | ||
852 | */ | ||
853 | |||
854 | |||
855 | /* various hacks, don't look :) */ | ||
856 | |||
857 | /* deflateInit and inflateInit are macros to allow checking the zlib version | ||
858 | * and the compiler's view of z_stream: | ||
859 | */ | ||
860 | ZEXTERN int ZEXPORT deflateInit_ OF((z_streamp strm, int level, | ||
861 | const char *version, int stream_size)); | ||
862 | ZEXTERN int ZEXPORT inflateInit_ OF((z_streamp strm, | ||
863 | const char *version, int stream_size)); | ||
864 | ZEXTERN int ZEXPORT deflateInit2_ OF((z_streamp strm, int level, int method, | ||
865 | int windowBits, int memLevel, | ||
866 | int strategy, const char *version, | ||
867 | int stream_size)); | ||
868 | ZEXTERN int ZEXPORT inflateInit2_ OF((z_streamp strm, int windowBits, | ||
869 | const char *version, int stream_size)); | ||
870 | #define deflateInit(strm, level) \ | ||
871 | deflateInit_((strm), (level), ZLIB_VERSION, sizeof(z_stream)) | ||
872 | #define inflateInit(strm) \ | ||
873 | inflateInit_((strm), ZLIB_VERSION, sizeof(z_stream)) | ||
874 | #define deflateInit2(strm, level, method, windowBits, memLevel, strategy) \ | ||
875 | deflateInit2_((strm),(level),(method),(windowBits),(memLevel),\ | ||
876 | (strategy), ZLIB_VERSION, sizeof(z_stream)) | ||
877 | #define inflateInit2(strm, windowBits) \ | ||
878 | inflateInit2_((strm), (windowBits), ZLIB_VERSION, sizeof(z_stream)) | ||
879 | |||
880 | |||
881 | #if !defined(_Z_UTIL_H) && !defined(NO_DUMMY_DECL) | ||
882 | struct internal_state {int dummy;}; /* hack for buggy compilers */ | ||
883 | #endif | ||
884 | |||
885 | ZEXTERN const char * ZEXPORT zError OF((int err)); | ||
886 | ZEXTERN int ZEXPORT inflateSyncPoint OF((z_streamp z)); | ||
887 | ZEXTERN const uLongf * ZEXPORT get_crc_table OF((void)); | ||
888 | |||
889 | #ifdef __cplusplus | ||
890 | } | ||
891 | #endif | ||
892 | |||
893 | #endif /* _ZLIB_H */ | ||
diff --git a/pwmanager/libcrypt/zlib/zlib.pro b/pwmanager/libcrypt/zlib/zlib.pro new file mode 100644 index 0000000..2841aaf --- a/dev/null +++ b/pwmanager/libcrypt/zlib/zlib.pro | |||
@@ -0,0 +1,36 @@ | |||
1 | ###################################################################### | ||
2 | # Automatically generated by qmake (1.07a) Tue Oct 19 14:18:17 2004 | ||
3 | ###################################################################### | ||
4 | |||
5 | TEMPLATE = lib | ||
6 | CONFIG += staticlib | ||
7 | INCLUDEPATH += . | ||
8 | TARGET = zlib | ||
9 | OBJECTS_DIR = obj/$(PLATFORM) | ||
10 | MOC_DIR = moc/$(PLATFORM) | ||
11 | DESTDIR= ../$(PLATFORM) | ||
12 | # Input | ||
13 | HEADERS += deflate.h \ | ||
14 | infblock.h \ | ||
15 | infcodes.h \ | ||
16 | inffast.h \ | ||
17 | inffixed.h \ | ||
18 | inftrees.h \ | ||
19 | infutil.h \ | ||
20 | trees.h \ | ||
21 | zconf.h \ | ||
22 | zlib.h \ | ||
23 | zutil.h | ||
24 | SOURCES += adler32.c \ | ||
25 | compress.c \ | ||
26 | crc32.c \ | ||
27 | deflate.c \ | ||
28 | infblock.c \ | ||
29 | infcodes.c \ | ||
30 | inffast.c \ | ||
31 | inflate.c \ | ||
32 | inftrees.c \ | ||
33 | infutil.c \ | ||
34 | trees.c \ | ||
35 | uncompr.c \ | ||
36 | zutil.c | ||
diff --git a/pwmanager/libcrypt/zlib/zutil.c b/pwmanager/libcrypt/zlib/zutil.c new file mode 100644 index 0000000..dfc38ec --- a/dev/null +++ b/pwmanager/libcrypt/zlib/zutil.c | |||
@@ -0,0 +1,225 @@ | |||
1 | /* zutil.c -- target dependent utility functions for the compression library | ||
2 | * Copyright (C) 1995-2002 Jean-loup Gailly. | ||
3 | * For conditions of distribution and use, see copyright notice in zlib.h | ||
4 | */ | ||
5 | |||
6 | /* @(#) $Id$ */ | ||
7 | |||
8 | #include "zutil.h" | ||
9 | |||
10 | struct internal_state {int dummy;}; /* for buggy compilers */ | ||
11 | |||
12 | #ifndef STDC | ||
13 | extern void exit OF((int)); | ||
14 | #endif | ||
15 | |||
16 | const char *z_errmsg[10] = { | ||
17 | "need dictionary", /* Z_NEED_DICT 2 */ | ||
18 | "stream end", /* Z_STREAM_END 1 */ | ||
19 | "", /* Z_OK 0 */ | ||
20 | "file error", /* Z_ERRNO (-1) */ | ||
21 | "stream error", /* Z_STREAM_ERROR (-2) */ | ||
22 | "data error", /* Z_DATA_ERROR (-3) */ | ||
23 | "insufficient memory", /* Z_MEM_ERROR (-4) */ | ||
24 | "buffer error", /* Z_BUF_ERROR (-5) */ | ||
25 | "incompatible version",/* Z_VERSION_ERROR (-6) */ | ||
26 | ""}; | ||
27 | |||
28 | |||
29 | const char * ZEXPORT zlibVersion() | ||
30 | { | ||
31 | return ZLIB_VERSION; | ||
32 | } | ||
33 | |||
34 | #ifdef DEBUG | ||
35 | |||
36 | # ifndef verbose | ||
37 | # define verbose 0 | ||
38 | # endif | ||
39 | int z_verbose = verbose; | ||
40 | |||
41 | void z_error (m) | ||
42 | char *m; | ||
43 | { | ||
44 | fprintf(stderr, "%s\n", m); | ||
45 | exit(1); | ||
46 | } | ||
47 | #endif | ||
48 | |||
49 | /* exported to allow conversion of error code to string for compress() and | ||
50 | * uncompress() | ||
51 | */ | ||
52 | const char * ZEXPORT zError(err) | ||
53 | int err; | ||
54 | { | ||
55 | return ERR_MSG(err); | ||
56 | } | ||
57 | |||
58 | |||
59 | #ifndef HAVE_MEMCPY | ||
60 | |||
61 | void zmemcpy(dest, source, len) | ||
62 | Bytef* dest; | ||
63 | const Bytef* source; | ||
64 | uInt len; | ||
65 | { | ||
66 | if (len == 0) return; | ||
67 | do { | ||
68 | *dest++ = *source++; /* ??? to be unrolled */ | ||
69 | } while (--len != 0); | ||
70 | } | ||
71 | |||
72 | int zmemcmp(s1, s2, len) | ||
73 | const Bytef* s1; | ||
74 | const Bytef* s2; | ||
75 | uInt len; | ||
76 | { | ||
77 | uInt j; | ||
78 | |||
79 | for (j = 0; j < len; j++) { | ||
80 | if (s1[j] != s2[j]) return 2*(s1[j] > s2[j])-1; | ||
81 | } | ||
82 | return 0; | ||
83 | } | ||
84 | |||
85 | void zmemzero(dest, len) | ||
86 | Bytef* dest; | ||
87 | uInt len; | ||
88 | { | ||
89 | if (len == 0) return; | ||
90 | do { | ||
91 | *dest++ = 0; /* ??? to be unrolled */ | ||
92 | } while (--len != 0); | ||
93 | } | ||
94 | #endif | ||
95 | |||
96 | #ifdef __TURBOC__ | ||
97 | #if (defined( __BORLANDC__) || !defined(SMALL_MEDIUM)) && !defined(__32BIT__) | ||
98 | /* Small and medium model in Turbo C are for now limited to near allocation | ||
99 | * with reduced MAX_WBITS and MAX_MEM_LEVEL | ||
100 | */ | ||
101 | # define MY_ZCALLOC | ||
102 | |||
103 | /* Turbo C malloc() does not allow dynamic allocation of 64K bytes | ||
104 | * and farmalloc(64K) returns a pointer with an offset of 8, so we | ||
105 | * must fix the pointer. Warning: the pointer must be put back to its | ||
106 | * original form in order to free it, use zcfree(). | ||
107 | */ | ||
108 | |||
109 | #define MAX_PTR 10 | ||
110 | /* 10*64K = 640K */ | ||
111 | |||
112 | local int next_ptr = 0; | ||
113 | |||
114 | typedef struct ptr_table_s { | ||
115 | voidpf org_ptr; | ||
116 | voidpf new_ptr; | ||
117 | } ptr_table; | ||
118 | |||
119 | local ptr_table table[MAX_PTR]; | ||
120 | /* This table is used to remember the original form of pointers | ||
121 | * to large buffers (64K). Such pointers are normalized with a zero offset. | ||
122 | * Since MSDOS is not a preemptive multitasking OS, this table is not | ||
123 | * protected from concurrent access. This hack doesn't work anyway on | ||
124 | * a protected system like OS/2. Use Microsoft C instead. | ||
125 | */ | ||
126 | |||
127 | voidpf zcalloc (voidpf opaque, unsigned items, unsigned size) | ||
128 | { | ||
129 | voidpf buf = opaque; /* just to make some compilers happy */ | ||
130 | ulg bsize = (ulg)items*size; | ||
131 | |||
132 | /* If we allocate less than 65520 bytes, we assume that farmalloc | ||
133 | * will return a usable pointer which doesn't have to be normalized. | ||
134 | */ | ||
135 | if (bsize < 65520L) { | ||
136 | buf = farmalloc(bsize); | ||
137 | if (*(ush*)&buf != 0) return buf; | ||
138 | } else { | ||
139 | buf = farmalloc(bsize + 16L); | ||
140 | } | ||
141 | if (buf == NULL || next_ptr >= MAX_PTR) return NULL; | ||
142 | table[next_ptr].org_ptr = buf; | ||
143 | |||
144 | /* Normalize the pointer to seg:0 */ | ||
145 | *((ush*)&buf+1) += ((ush)((uch*)buf-0) + 15) >> 4; | ||
146 | *(ush*)&buf = 0; | ||
147 | table[next_ptr++].new_ptr = buf; | ||
148 | return buf; | ||
149 | } | ||
150 | |||
151 | void zcfree (voidpf opaque, voidpf ptr) | ||
152 | { | ||
153 | int n; | ||
154 | if (*(ush*)&ptr != 0) { /* object < 64K */ | ||
155 | farfree(ptr); | ||
156 | return; | ||
157 | } | ||
158 | /* Find the original pointer */ | ||
159 | for (n = 0; n < next_ptr; n++) { | ||
160 | if (ptr != table[n].new_ptr) continue; | ||
161 | |||
162 | farfree(table[n].org_ptr); | ||
163 | while (++n < next_ptr) { | ||
164 | table[n-1] = table[n]; | ||
165 | } | ||
166 | next_ptr--; | ||
167 | return; | ||
168 | } | ||
169 | ptr = opaque; /* just to make some compilers happy */ | ||
170 | Assert(0, "zcfree: ptr not found"); | ||
171 | } | ||
172 | #endif | ||
173 | #endif /* __TURBOC__ */ | ||
174 | |||
175 | |||
176 | #if defined(M_I86) && !defined(__32BIT__) | ||
177 | /* Microsoft C in 16-bit mode */ | ||
178 | |||
179 | # define MY_ZCALLOC | ||
180 | |||
181 | #if (!defined(_MSC_VER) || (_MSC_VER <= 600)) | ||
182 | # define _halloc halloc | ||
183 | # define _hfree hfree | ||
184 | #endif | ||
185 | |||
186 | voidpf zcalloc (voidpf opaque, unsigned items, unsigned size) | ||
187 | { | ||
188 | if (opaque) opaque = 0; /* to make compiler happy */ | ||
189 | return _halloc((long)items, size); | ||
190 | } | ||
191 | |||
192 | void zcfree (voidpf opaque, voidpf ptr) | ||
193 | { | ||
194 | if (opaque) opaque = 0; /* to make compiler happy */ | ||
195 | _hfree(ptr); | ||
196 | } | ||
197 | |||
198 | #endif /* MSC */ | ||
199 | |||
200 | |||
201 | #ifndef MY_ZCALLOC /* Any system without a special alloc function */ | ||
202 | |||
203 | #ifndef STDC | ||
204 | extern voidp calloc OF((uInt items, uInt size)); | ||
205 | extern void free OF((voidpf ptr)); | ||
206 | #endif | ||
207 | |||
208 | voidpf zcalloc (opaque, items, size) | ||
209 | voidpf opaque; | ||
210 | unsigned items; | ||
211 | unsigned size; | ||
212 | { | ||
213 | if (opaque) items += size - size; /* make compiler happy */ | ||
214 | return (voidpf)calloc(items, size); | ||
215 | } | ||
216 | |||
217 | void zcfree (opaque, ptr) | ||
218 | voidpf opaque; | ||
219 | voidpf ptr; | ||
220 | { | ||
221 | free(ptr); | ||
222 | if (opaque) return; /* make compiler happy */ | ||
223 | } | ||
224 | |||
225 | #endif /* MY_ZCALLOC */ | ||
diff --git a/pwmanager/libcrypt/zlib/zutil.h b/pwmanager/libcrypt/zlib/zutil.h new file mode 100644 index 0000000..718ebc1 --- a/dev/null +++ b/pwmanager/libcrypt/zlib/zutil.h | |||
@@ -0,0 +1,220 @@ | |||
1 | /* zutil.h -- internal interface and configuration of the compression library | ||
2 | * Copyright (C) 1995-2002 Jean-loup Gailly. | ||
3 | * For conditions of distribution and use, see copyright notice in zlib.h | ||
4 | */ | ||
5 | |||
6 | /* WARNING: this file should *not* be used by applications. It is | ||
7 | part of the implementation of the compression library and is | ||
8 | subject to change. Applications should only use zlib.h. | ||
9 | */ | ||
10 | |||
11 | /* @(#) $Id$ */ | ||
12 | |||
13 | #ifndef _Z_UTIL_H | ||
14 | #define _Z_UTIL_H | ||
15 | |||
16 | #include "zlib.h" | ||
17 | |||
18 | #ifdef STDC | ||
19 | # include <stddef.h> | ||
20 | # include <string.h> | ||
21 | # include <stdlib.h> | ||
22 | #endif | ||
23 | #ifdef NO_ERRNO_H | ||
24 | extern int errno; | ||
25 | #else | ||
26 | # include <errno.h> | ||
27 | #endif | ||
28 | |||
29 | #ifndef local | ||
30 | # define local static | ||
31 | #endif | ||
32 | /* compile with -Dlocal if your debugger can't find static symbols */ | ||
33 | |||
34 | typedef unsigned char uch; | ||
35 | typedef uch FAR uchf; | ||
36 | typedef unsigned short ush; | ||
37 | typedef ush FAR ushf; | ||
38 | typedef unsigned long ulg; | ||
39 | |||
40 | extern const char *z_errmsg[10]; /* indexed by 2-zlib_error */ | ||
41 | /* (size given to avoid silly warnings with Visual C++) */ | ||
42 | |||
43 | #define ERR_MSG(err) z_errmsg[Z_NEED_DICT-(err)] | ||
44 | |||
45 | #define ERR_RETURN(strm,err) \ | ||
46 | return (strm->msg = (char*)ERR_MSG(err), (err)) | ||
47 | /* To be used only when the state is known to be valid */ | ||
48 | |||
49 | /* common constants */ | ||
50 | |||
51 | #ifndef DEF_WBITS | ||
52 | # define DEF_WBITS MAX_WBITS | ||
53 | #endif | ||
54 | /* default windowBits for decompression. MAX_WBITS is for compression only */ | ||
55 | |||
56 | #if MAX_MEM_LEVEL >= 8 | ||
57 | # define DEF_MEM_LEVEL 8 | ||
58 | #else | ||
59 | # define DEF_MEM_LEVEL MAX_MEM_LEVEL | ||
60 | #endif | ||
61 | /* default memLevel */ | ||
62 | |||
63 | #define STORED_BLOCK 0 | ||
64 | #define STATIC_TREES 1 | ||
65 | #define DYN_TREES 2 | ||
66 | /* The three kinds of block type */ | ||
67 | |||
68 | #define MIN_MATCH 3 | ||
69 | #define MAX_MATCH 258 | ||
70 | /* The minimum and maximum match lengths */ | ||
71 | |||
72 | #define PRESET_DICT 0x20 /* preset dictionary flag in zlib header */ | ||
73 | |||
74 | /* target dependencies */ | ||
75 | |||
76 | #ifdef MSDOS | ||
77 | # define OS_CODE 0x00 | ||
78 | # if defined(__TURBOC__) || defined(__BORLANDC__) | ||
79 | # if(__STDC__ == 1) && (defined(__LARGE__) || defined(__COMPACT__)) | ||
80 | /* Allow compilation with ANSI keywords only enabled */ | ||
81 | void _Cdecl farfree( void *block ); | ||
82 | void *_Cdecl farmalloc( unsigned long nbytes ); | ||
83 | # else | ||
84 | # include <alloc.h> | ||
85 | # endif | ||
86 | # else /* MSC or DJGPP */ | ||
87 | # include <malloc.h> | ||
88 | # endif | ||
89 | #endif | ||
90 | |||
91 | #ifdef OS2 | ||
92 | # define OS_CODE 0x06 | ||
93 | #endif | ||
94 | |||
95 | #ifdef WIN32 /* Window 95 & Windows NT */ | ||
96 | # define OS_CODE 0x0b | ||
97 | #endif | ||
98 | |||
99 | #if defined(VAXC) || defined(VMS) | ||
100 | # define OS_CODE 0x02 | ||
101 | # define F_OPEN(name, mode) \ | ||
102 | fopen((name), (mode), "mbc=60", "ctx=stm", "rfm=fix", "mrs=512") | ||
103 | #endif | ||
104 | |||
105 | #ifdef AMIGA | ||
106 | # define OS_CODE 0x01 | ||
107 | #endif | ||
108 | |||
109 | #if defined(ATARI) || defined(atarist) | ||
110 | # define OS_CODE 0x05 | ||
111 | #endif | ||
112 | |||
113 | #if defined(MACOS) || defined(TARGET_OS_MAC) | ||
114 | # define OS_CODE 0x07 | ||
115 | # if defined(__MWERKS__) && __dest_os != __be_os && __dest_os != __win32_os | ||
116 | # include <unix.h> /* for fdopen */ | ||
117 | # else | ||
118 | # ifndef fdopen | ||
119 | # define fdopen(fd,mode) NULL /* No fdopen() */ | ||
120 | # endif | ||
121 | # endif | ||
122 | #endif | ||
123 | |||
124 | #ifdef __50SERIES /* Prime/PRIMOS */ | ||
125 | # define OS_CODE 0x0F | ||
126 | #endif | ||
127 | |||
128 | #ifdef TOPS20 | ||
129 | # define OS_CODE 0x0a | ||
130 | #endif | ||
131 | |||
132 | #if defined(_BEOS_) || defined(RISCOS) | ||
133 | # define fdopen(fd,mode) NULL /* No fdopen() */ | ||
134 | #endif | ||
135 | |||
136 | #if (defined(_MSC_VER) && (_MSC_VER > 600)) | ||
137 | # define fdopen(fd,type) _fdopen(fd,type) | ||
138 | #endif | ||
139 | |||
140 | |||
141 | /* Common defaults */ | ||
142 | |||
143 | #ifndef OS_CODE | ||
144 | # define OS_CODE 0x03 /* assume Unix */ | ||
145 | #endif | ||
146 | |||
147 | #ifndef F_OPEN | ||
148 | # define F_OPEN(name, mode) fopen((name), (mode)) | ||
149 | #endif | ||
150 | |||
151 | /* functions */ | ||
152 | |||
153 | #ifdef HAVE_STRERROR | ||
154 | extern char *strerror OF((int)); | ||
155 | # define zstrerror(errnum) strerror(errnum) | ||
156 | #else | ||
157 | # define zstrerror(errnum) "" | ||
158 | #endif | ||
159 | |||
160 | #if defined(pyr) | ||
161 | # define NO_MEMCPY | ||
162 | #endif | ||
163 | #if defined(SMALL_MEDIUM) && !defined(_MSC_VER) && !defined(__SC__) | ||
164 | /* Use our own functions for small and medium model with MSC <= 5.0. | ||
165 | * You may have to use the same strategy for Borland C (untested). | ||
166 | * The __SC__ check is for Symantec. | ||
167 | */ | ||
168 | # define NO_MEMCPY | ||
169 | #endif | ||
170 | #if defined(STDC) && !defined(HAVE_MEMCPY) && !defined(NO_MEMCPY) | ||
171 | # define HAVE_MEMCPY | ||
172 | #endif | ||
173 | #ifdef HAVE_MEMCPY | ||
174 | # ifdef SMALL_MEDIUM /* MSDOS small or medium model */ | ||
175 | # define zmemcpy _fmemcpy | ||
176 | # define zmemcmp _fmemcmp | ||
177 | # define zmemzero(dest, len) _fmemset(dest, 0, len) | ||
178 | # else | ||
179 | # define zmemcpy memcpy | ||
180 | # define zmemcmp memcmp | ||
181 | # define zmemzero(dest, len) memset(dest, 0, len) | ||
182 | # endif | ||
183 | #else | ||
184 | extern void zmemcpy OF((Bytef* dest, const Bytef* source, uInt len)); | ||
185 | extern int zmemcmp OF((const Bytef* s1, const Bytef* s2, uInt len)); | ||
186 | extern void zmemzero OF((Bytef* dest, uInt len)); | ||
187 | #endif | ||
188 | |||
189 | /* Diagnostic functions */ | ||
190 | #ifdef DEBUG | ||
191 | # include <stdio.h> | ||
192 | extern int z_verbose; | ||
193 | extern void z_error OF((char *m)); | ||
194 | # define Assert(cond,msg) {if(!(cond)) z_error(msg);} | ||
195 | # define Trace(x) {if (z_verbose>=0) fprintf x ;} | ||
196 | # define Tracev(x) {if (z_verbose>0) fprintf x ;} | ||
197 | # define Tracevv(x) {if (z_verbose>1) fprintf x ;} | ||
198 | # define Tracec(c,x) {if (z_verbose>0 && (c)) fprintf x ;} | ||
199 | # define Tracecv(c,x) {if (z_verbose>1 && (c)) fprintf x ;} | ||
200 | #else | ||
201 | # define Assert(cond,msg) | ||
202 | # define Trace(x) | ||
203 | # define Tracev(x) | ||
204 | # define Tracevv(x) | ||
205 | # define Tracec(c,x) | ||
206 | # define Tracecv(c,x) | ||
207 | #endif | ||
208 | |||
209 | |||
210 | typedef uLong (ZEXPORT *check_func) OF((uLong check, const Bytef *buf, | ||
211 | uInt len)); | ||
212 | voidpf zcalloc OF((voidpf opaque, unsigned items, unsigned size)); | ||
213 | void zcfree OF((voidpf opaque, voidpf ptr)); | ||
214 | |||
215 | #define ZALLOC(strm, items, size) \ | ||
216 | (*((strm)->zalloc))((strm)->opaque, (items), (size)) | ||
217 | #define ZFREE(strm, addr) (*((strm)->zfree))((strm)->opaque, (voidpf)(addr)) | ||
218 | #define TRY_FREE(s, p) {if (p) ZFREE(s, p);} | ||
219 | |||
220 | #endif /* _Z_UTIL_H */ | ||