Compare commits
2 Commits
ZLIB_1_2_1
...
ZLIB_1_2_2
| Author | SHA1 | Date | |
|---|---|---|---|
|
9773585710 | ||
|
a2105c9a04 |
@@ -1,6 +1,48 @@
|
||||
|
||||
ChangeLog file for zlib
|
||||
|
||||
Changes in 1.2.2 (3 October 2004)
|
||||
- Update zlib.h comments on gzip in-memory processing
|
||||
- Set adler to 1 in inflateReset() to support Java test suite [Walles]
|
||||
- Add contrib/dotzlib [Ravn]
|
||||
- Update win32/DLL_FAQ.txt [Truta]
|
||||
- Update contrib/minizip [Vollant]
|
||||
- Move contrib/visual-basic.txt to old/ [Truta]
|
||||
- Fix assembler builds in projects/visualc6/ [Truta]
|
||||
|
||||
Changes in 1.2.1.2 (9 September 2004)
|
||||
- Update INDEX file
|
||||
- Fix trees.c to update strm->data_type (no one ever noticed!)
|
||||
- Fix bug in error case in inflate.c, infback.c, and infback9.c [Brown]
|
||||
- Add "volatile" to crc table flag declaration (for DYNAMIC_CRC_TABLE)
|
||||
- Add limited multitasking protection to DYNAMIC_CRC_TABLE
|
||||
- Add NO_vsnprintf for VMS in zutil.h [Mozilla]
|
||||
- Don't declare strerror() under VMS [Mozilla]
|
||||
- Add comment to DYNAMIC_CRC_TABLE to use get_crc_table() to initialize
|
||||
- Update contrib/ada [Anisimkov]
|
||||
- Update contrib/minizip [Vollant]
|
||||
- Fix configure to not hardcode directories for Darwin [Peterson]
|
||||
- Fix gzio.c to not return error on empty files [Brown]
|
||||
- Fix indentation; update version in contrib/delphi/ZLib.pas and
|
||||
contrib/pascal/zlibpas.pas [Truta]
|
||||
- Update mkasm.bat in contrib/masmx86 [Truta]
|
||||
- Update contrib/untgz [Truta]
|
||||
- Add projects/README.projects [Truta]
|
||||
- Add project for MS Visual C++ 6.0 in projects/visualc6 [Cadieux, Truta]
|
||||
- Update win32/DLL_FAQ.txt [Truta]
|
||||
- Update list of Z_PREFIX symbols in zconf.h [Randers-Pehrson, Truta]
|
||||
- Remove an unnecessary assignment to curr in inftrees.c [Truta]
|
||||
- Add OS/2 to exe builds in configure [Poltorak]
|
||||
- Remove err dummy parameter in zlib.h [Kientzle]
|
||||
|
||||
Changes in 1.2.1.1 (9 January 2004)
|
||||
- Update email address in README
|
||||
- Several FAQ updates
|
||||
- Fix a big fat bug in inftrees.c that prevented decoding valid
|
||||
dynamic blocks with only literals and no distance codes --
|
||||
Thanks to "Hot Emu" for the bug report and sample file
|
||||
- Add a note to puff.c on no distance codes case.
|
||||
|
||||
Changes in 1.2.1 (17 November 2003)
|
||||
- Remove a tab in contrib/gzappend/gzappend.c
|
||||
- Update some interfaces in contrib for new zlib functions
|
||||
|
||||
88
src/zlib/FAQ
88
src/zlib/FAQ
@@ -21,18 +21,18 @@ The lastest zlib FAQ is at http://www.gzip.org/zlib/zlib_faq.html
|
||||
3. Where can I get a Visual Basic interface to zlib?
|
||||
|
||||
See
|
||||
* http://www.winimage.com/zLibDll/
|
||||
* http://www.dogma.net/markn/articles/zlibtool/zlibtool.htm
|
||||
* contrib/visual-basic.txt in the zlib distribution
|
||||
* win32/DLL_FAQ.txt in the zlib distribution
|
||||
|
||||
4. compress() returns Z_BUF_ERROR
|
||||
4. compress() returns Z_BUF_ERROR.
|
||||
|
||||
Make sure that before the call of compress, the length of the compressed
|
||||
buffer is equal to the total size of the compressed buffer and not
|
||||
zero. For Visual Basic, check that this parameter is passed by reference
|
||||
("as any"), not by value ("as long").
|
||||
|
||||
5. deflate() or inflate() returns Z_BUF_ERROR
|
||||
5. deflate() or inflate() returns Z_BUF_ERROR.
|
||||
|
||||
Before making the call, make sure that avail_in and avail_out are not
|
||||
zero. When setting the parameter flush equal to Z_FINISH, also make sure
|
||||
@@ -47,8 +47,8 @@ The lastest zlib FAQ is at http://www.gzip.org/zlib/zlib_faq.html
|
||||
|
||||
It's in zlib.h for the moment, and Francis S. Lin has converted it to a
|
||||
web page zlib.html. Volunteers to transform this to Unix-style man pages,
|
||||
please contact Jean-loup Gailly (jloup@gzip.org). Examples of zlib usage
|
||||
are in the files example.c and minigzip.c.
|
||||
please contact us (zlib@gzip.org). Examples of zlib usage are in the files
|
||||
example.c and minigzip.c.
|
||||
|
||||
7. Why don't you use GNU autoconf or libtool or ...?
|
||||
|
||||
@@ -77,7 +77,8 @@ The lastest zlib FAQ is at http://www.gzip.org/zlib/zlib_faq.html
|
||||
|
||||
11. Can zlib handle .zip archives?
|
||||
|
||||
See the directory contrib/minizip in the zlib distribution.
|
||||
Not by itself, no. See the directory contrib/minizip in the zlib
|
||||
distribution.
|
||||
|
||||
12. Can zlib handle .Z files?
|
||||
|
||||
@@ -92,6 +93,8 @@ The lastest zlib FAQ is at http://www.gzip.org/zlib/zlib_faq.html
|
||||
|
||||
14. How do I install a shared zlib library on Unix?
|
||||
|
||||
After the above, then:
|
||||
|
||||
make install
|
||||
|
||||
However, many flavors of Unix come with a shared zlib already installed.
|
||||
@@ -99,12 +102,31 @@ The lastest zlib FAQ is at http://www.gzip.org/zlib/zlib_faq.html
|
||||
trying to install it, you may want to check if it's already there! If you
|
||||
can #include <zlib.h>, it's there. The -lz option will probably link to it.
|
||||
|
||||
15. I have a question about OttoPDF
|
||||
15. I have a question about OttoPDF.
|
||||
|
||||
We are not the authors of OttoPDF. The real author is on the OttoPDF web
|
||||
site Joel Hainley jhainley@myndkryme.com.
|
||||
site: Joel Hainley, jhainley@myndkryme.com.
|
||||
|
||||
16. Why does gzip give an error on a file I make with compress/deflate?
|
||||
16. Can zlib decode Flate data in an Adobe PDF file?
|
||||
|
||||
Yes. See http://www.fastio.com/ (ClibPDF), or http://www.pdflib.com/ .
|
||||
To modify PDF forms, see http://sourceforge.net/projects/acroformtool/ .
|
||||
|
||||
17. Why am I getting this "register_frame_info not found" error on Solaris?
|
||||
|
||||
After installing zlib 1.1.4 on Solaris 2.6, running applications using zlib
|
||||
generates an error such as:
|
||||
|
||||
ld.so.1: rpm: fatal: relocation error: file /usr/local/lib/libz.so:
|
||||
symbol __register_frame_info: referenced symbol not found
|
||||
|
||||
The symbol __register_frame_info is not part of zlib, it is generated by
|
||||
the C compiler (cc or gcc). You must recompile applications using zlib
|
||||
which have this problem. This problem is specific to Solaris. See
|
||||
http://www.sunfreeware.com for Solaris versions of zlib and applications
|
||||
using zlib.
|
||||
|
||||
18. Why does gzip give an error on a file I make with compress/deflate?
|
||||
|
||||
The compress and deflate functions produce data in the zlib format, which
|
||||
is different and incompatible with the gzip format. The gz* functions in
|
||||
@@ -112,7 +134,7 @@ The lastest zlib FAQ is at http://www.gzip.org/zlib/zlib_faq.html
|
||||
formats use the same compressed data format internally, but have different
|
||||
headers and trailers around the compressed data.
|
||||
|
||||
17. Ok, so why are there two different formats?
|
||||
19. Ok, so why are there two different formats?
|
||||
|
||||
The gzip format was designed to retain the directory information about
|
||||
a single file, such as the name and last modification date. The zlib
|
||||
@@ -120,7 +142,7 @@ The lastest zlib FAQ is at http://www.gzip.org/zlib/zlib_faq.html
|
||||
channel applications, and has a much more compact header and trailer and
|
||||
uses a faster integrity check than gzip.
|
||||
|
||||
18. Well that's nice, but how do I make a gzip file in memory?
|
||||
20. Well that's nice, but how do I make a gzip file in memory?
|
||||
|
||||
You can request that deflate write the gzip format instead of the zlib
|
||||
format using deflateInit2(). You can also request that inflate decode
|
||||
@@ -133,7 +155,7 @@ The lastest zlib FAQ is at http://www.gzip.org/zlib/zlib_faq.html
|
||||
function and roll your own gzip encoding and decoding. Read the gzip
|
||||
RFC 1952 for details of the header and trailer format.
|
||||
|
||||
19. Is zlib thread-safe?
|
||||
21. Is zlib thread-safe?
|
||||
|
||||
Yes. However any library routines that zlib uses and any application-
|
||||
provided memory allocation routines must also be thread-safe. zlib's gz*
|
||||
@@ -144,15 +166,15 @@ The lastest zlib FAQ is at http://www.gzip.org/zlib/zlib_faq.html
|
||||
Of course, you should only operate on any given zlib or gzip stream from a
|
||||
single thread at a time.
|
||||
|
||||
20. Can I use zlib in my commercial application?
|
||||
22. Can I use zlib in my commercial application?
|
||||
|
||||
Yes. Please read the license in zlib.h.
|
||||
|
||||
21. Is zlib under the GNU license?
|
||||
23. Is zlib under the GNU license?
|
||||
|
||||
No. Please read the license in zlib.h.
|
||||
|
||||
22. The license says that altered source versions must be "plainly marked". So
|
||||
24. The license says that altered source versions must be "plainly marked". So
|
||||
what exactly do I need to do to meet that requirement?
|
||||
|
||||
You need to change the ZLIB_VERSION and ZLIB_VERNUM #defines in zlib.h. In
|
||||
@@ -175,24 +197,24 @@ The lastest zlib FAQ is at http://www.gzip.org/zlib/zlib_faq.html
|
||||
ZLIB_VERSION and ZLIB_VERNUM and note the origin and nature of the changes
|
||||
in zlib.h as you would for a full source distribution.
|
||||
|
||||
23. Will zlib work on a big-endian or little-endian architecture, and can I
|
||||
25. Will zlib work on a big-endian or little-endian architecture, and can I
|
||||
exchange compressed data between them?
|
||||
|
||||
Yes and yes.
|
||||
|
||||
24. Will zlib work on a 64-bit machine?
|
||||
26. Will zlib work on a 64-bit machine?
|
||||
|
||||
It should. It has been tested on 64-bit machines, and has no dependence
|
||||
on any data types being limited to 32-bits in length. If you have any
|
||||
difficulties, please provide a complete problem report to zlib@gzip.org
|
||||
|
||||
25. Will zlib decompress data from the PKWare Data Compression Library?
|
||||
27. Will zlib decompress data from the PKWare Data Compression Library?
|
||||
|
||||
No. The PKWare DCL uses a completely different compressed data format
|
||||
than does PKZIP and zlib. However, you can look in zlib's contrib/blast
|
||||
directory for a possible solution to your problem.
|
||||
|
||||
26. Can I access data randomly in a compressed stream?
|
||||
28. Can I access data randomly in a compressed stream?
|
||||
|
||||
No, not without some preparation. If when compressing you periodically
|
||||
use Z_FULL_FLUSH, carefully write all the pending data at those points,
|
||||
@@ -200,27 +222,27 @@ The lastest zlib FAQ is at http://www.gzip.org/zlib/zlib_faq.html
|
||||
at those points. You have to be careful to not use Z_FULL_FLUSH too
|
||||
often, since it can significantly degrade compression.
|
||||
|
||||
27. Does zlib work on MVS, OS/390, CICS, etc.?
|
||||
29. Does zlib work on MVS, OS/390, CICS, etc.?
|
||||
|
||||
We don't know for sure. We have heard occasional reports of success on
|
||||
these systems. If you do use it on one of these, please provide us with
|
||||
a report, instructions, and patches that we can reference when we get
|
||||
these questions. Thanks.
|
||||
|
||||
28. Is there some simpler, easier to read version of inflate I can look at
|
||||
30. Is there some simpler, easier to read version of inflate I can look at
|
||||
to understand the deflate format?
|
||||
|
||||
First off, you should read RFC 1951. Second, yes. Look in zlib's
|
||||
contrib/puff directory.
|
||||
|
||||
29. Does zlib infringe on any patents?
|
||||
31. Does zlib infringe on any patents?
|
||||
|
||||
As far as we know, no. In fact, that was originally the whole point behind
|
||||
zlib. Look here for some more information:
|
||||
|
||||
http://www.gzip.org/#faq11
|
||||
|
||||
30. Can zlib work with greater than 4 GB of data?
|
||||
32. Can zlib work with greater than 4 GB of data?
|
||||
|
||||
Yes. inflate() and deflate() will process any amount of data correctly.
|
||||
Each call of inflate() or deflate() is limited to input and output chunks
|
||||
@@ -238,7 +260,7 @@ The lastest zlib FAQ is at http://www.gzip.org/zlib/zlib_faq.html
|
||||
only if the compiler's "long" type is 32 bits. If the compiler's "long"
|
||||
type is 64 bits, then the limit is 16 exabytes.
|
||||
|
||||
31. Does zlib have any security vulnerabilities?
|
||||
33. Does zlib have any security vulnerabilities?
|
||||
|
||||
The only one that we are aware of is potentially in gzprintf(). If zlib
|
||||
is compiled to use sprintf() or vsprintf(), then there is no protection
|
||||
@@ -258,35 +280,35 @@ The lastest zlib FAQ is at http://www.gzip.org/zlib/zlib_faq.html
|
||||
Note that you should be using the most recent version of zlib. Versions
|
||||
1.1.3 and before were subject to a double-free vulnerability.
|
||||
|
||||
32. Is there a Java version of zlib?
|
||||
34. Is there a Java version of zlib?
|
||||
|
||||
Probably what you want is to use zlib in Java. zlib is already included
|
||||
as part of the Java SDK in the java.util.zip package. If you really want
|
||||
a version of zlib written in the Java language, look on the zlib home
|
||||
page for links: http://www.zlib.org/
|
||||
|
||||
33. I get this or that compiler or source-code scanner warning when I crank it
|
||||
up to maximally-pendantic. Can't you guys write proper code?
|
||||
35. I get this or that compiler or source-code scanner warning when I crank it
|
||||
up to maximally-pedantic. Can't you guys write proper code?
|
||||
|
||||
Many years ago, we gave up attempting to avoid warnings on every compiler
|
||||
in the universe. It just got to be a waste of time, and some compilers
|
||||
were downright silly. So now, we simply make sure that the code always
|
||||
works.
|
||||
|
||||
34. Will zlib read the (insert any ancient or arcane format here) compressed
|
||||
36. Will zlib read the (insert any ancient or arcane format here) compressed
|
||||
data format?
|
||||
|
||||
Probably not. Look in the comp.compression FAQ for pointers to various
|
||||
formats and associated software.
|
||||
|
||||
35. How can I encrypt/decrypt zip files with zlib?
|
||||
37. How can I encrypt/decrypt zip files with zlib?
|
||||
|
||||
zlib doesn't support encryption. The original PKZIP encryption is very weak
|
||||
and can be broken with freely available programs. To get strong encryption,
|
||||
use gpg ( http://www.gnupg.org/ ) which already includes zlib compression.
|
||||
use GnuPG, http://www.gnupg.org/ , which already includes zlib compression.
|
||||
For PKZIP compatible "encryption", look at http://www.info-zip.org/
|
||||
|
||||
36. What's the difference between the "gzip" and "deflate" HTTP 1.1 encodings?
|
||||
38. What's the difference between the "gzip" and "deflate" HTTP 1.1 encodings?
|
||||
|
||||
"gzip" is the gzip format, and "deflate" is the zlib format. They should
|
||||
probably have called the second one "zlib" instead to avoid confusion
|
||||
@@ -302,14 +324,14 @@ The lastest zlib FAQ is at http://www.gzip.org/zlib/zlib_faq.html
|
||||
|
||||
Bottom line: use the gzip format for HTTP 1.1 encoding.
|
||||
|
||||
37. Does zlib support the new "Deflate64" format introduced by PKWare?
|
||||
39. Does zlib support the new "Deflate64" format introduced by PKWare?
|
||||
|
||||
No. PKWare has apparently decided to keep that format proprietary, since
|
||||
they have not documented it as they have previous compression formats.
|
||||
In any case, the compression improvements are so modest compared to other
|
||||
more modern approaches, that it's not worth the effort to implement.
|
||||
|
||||
38. Can you please sign these lengthy legal documents and fax them back to us
|
||||
40. Can you please sign these lengthy legal documents and fax them back to us
|
||||
so that we can use your software in our product?
|
||||
|
||||
No. Go away. Shoo.
|
||||
|
||||
@@ -8,9 +8,12 @@ algorithm.txt description of the (de)compression algorithm
|
||||
configure configure script for Unix
|
||||
zconf.in.h template for zconf.h (used by configure)
|
||||
|
||||
amiga/ makefiles for Amiga SAS C
|
||||
as400/ makefiles for IBM AS/400
|
||||
msdos/ makefiles for MSDOS
|
||||
old/ makefiles for various architectures and zlib documentation
|
||||
files that have not yet been updated for zlib 1.2.x
|
||||
projects/ projects for various Integrated Development Environments
|
||||
qnx/ makefiles for QNX
|
||||
win32/ makefiles for Windows
|
||||
|
||||
|
||||
@@ -1,115 +0,0 @@
|
||||
$! make libz under VMS
|
||||
$! written by Martin P.J. Zinser <m.zinser@gsi.de>
|
||||
$!
|
||||
$! Look for the compiler used
|
||||
$!
|
||||
$ ccopt = ""
|
||||
$ if f$getsyi("HW_MODEL").ge.1024
|
||||
$ then
|
||||
$ ccopt = "/prefix=all"+ccopt
|
||||
$ comp = "__decc__=1"
|
||||
$ if f$trnlnm("SYS").eqs."" then define sys sys$library:
|
||||
$ else
|
||||
$ if f$search("SYS$SYSTEM:DECC$COMPILER.EXE").eqs.""
|
||||
$ then
|
||||
$ comp = "__vaxc__=1"
|
||||
$ if f$trnlnm("SYS").eqs."" then define sys sys$library:
|
||||
$ else
|
||||
$ if f$trnlnm("SYS").eqs."" then define sys decc$library_include:
|
||||
$ ccopt = "/decc/prefix=all"+ccopt
|
||||
$ comp = "__decc__=1"
|
||||
$ endif
|
||||
$ endif
|
||||
$!
|
||||
$! Build the thing plain or with mms
|
||||
$!
|
||||
$ write sys$output "Compiling Zlib sources ..."
|
||||
$ if f$search("SYS$SYSTEM:MMS.EXE").eqs.""
|
||||
$ then
|
||||
$ dele example.obj;*,minigzip.obj;*
|
||||
$ CALL MAKE adler32.OBJ "CC ''CCOPT' adler32" -
|
||||
adler32.c zlib.h zconf.h
|
||||
$ CALL MAKE compress.OBJ "CC ''CCOPT' compress" -
|
||||
compress.c zlib.h zconf.h
|
||||
$ CALL MAKE crc32.OBJ "CC ''CCOPT' crc32" -
|
||||
crc32.c zlib.h zconf.h
|
||||
$ CALL MAKE deflate.OBJ "CC ''CCOPT' deflate" -
|
||||
deflate.c deflate.h zutil.h zlib.h zconf.h
|
||||
$ CALL MAKE gzio.OBJ "CC ''CCOPT' gzio" -
|
||||
gzio.c zutil.h zlib.h zconf.h
|
||||
$ CALL MAKE infblock.OBJ "CC ''CCOPT' infblock" -
|
||||
infblock.c zutil.h zlib.h zconf.h infblock.h
|
||||
$ CALL MAKE infcodes.OBJ "CC ''CCOPT' infcodes" -
|
||||
infcodes.c zutil.h zlib.h zconf.h inftrees.h
|
||||
$ CALL MAKE inffast.OBJ "CC ''CCOPT' inffast" -
|
||||
inffast.c zutil.h zlib.h zconf.h inffast.h
|
||||
$ CALL MAKE inflate.OBJ "CC ''CCOPT' inflate" -
|
||||
inflate.c zutil.h zlib.h zconf.h infblock.h
|
||||
$ CALL MAKE inftrees.OBJ "CC ''CCOPT' inftrees" -
|
||||
inftrees.c zutil.h zlib.h zconf.h inftrees.h
|
||||
$ CALL MAKE infutil.OBJ "CC ''CCOPT' infutil" -
|
||||
infutil.c zutil.h zlib.h zconf.h inftrees.h infutil.h
|
||||
$ CALL MAKE trees.OBJ "CC ''CCOPT' trees" -
|
||||
trees.c deflate.h zutil.h zlib.h zconf.h
|
||||
$ CALL MAKE uncompr.OBJ "CC ''CCOPT' uncompr" -
|
||||
uncompr.c zlib.h zconf.h
|
||||
$ CALL MAKE zutil.OBJ "CC ''CCOPT' zutil" -
|
||||
zutil.c zutil.h zlib.h zconf.h
|
||||
$ write sys$output "Building Zlib ..."
|
||||
$ CALL MAKE libz.OLB "lib/crea libz.olb *.obj" *.OBJ
|
||||
$ write sys$output "Building example..."
|
||||
$ CALL MAKE example.OBJ "CC ''CCOPT' example" -
|
||||
example.c zlib.h zconf.h
|
||||
$ call make example.exe "LINK example,libz.olb/lib" example.obj libz.olb
|
||||
$ write sys$output "Building minigzip..."
|
||||
$ CALL MAKE minigzip.OBJ "CC ''CCOPT' minigzip" -
|
||||
minigzip.c zlib.h zconf.h
|
||||
$ call make minigzip.exe -
|
||||
"LINK minigzip,libz.olb/lib,x11vms:xvmsutils.olb/lib" -
|
||||
minigzip.obj libz.olb
|
||||
$ else
|
||||
$ mms/macro=('comp')
|
||||
$ endif
|
||||
$ write sys$output "Zlib build completed"
|
||||
$ exit
|
||||
$!
|
||||
$!
|
||||
$MAKE: SUBROUTINE !SUBROUTINE TO CHECK DEPENDENCIES
|
||||
$ V = 'F$Verify(0)
|
||||
$! P1 = What we are trying to make
|
||||
$! P2 = Command to make it
|
||||
$! P3 - P8 What it depends on
|
||||
$
|
||||
$ If F$Search(P1) .Eqs. "" Then Goto Makeit
|
||||
$ Time = F$CvTime(F$File(P1,"RDT"))
|
||||
$arg=3
|
||||
$Loop:
|
||||
$ Argument = P'arg
|
||||
$ If Argument .Eqs. "" Then Goto Exit
|
||||
$ El=0
|
||||
$Loop2:
|
||||
$ File = F$Element(El," ",Argument)
|
||||
$ If File .Eqs. " " Then Goto Endl
|
||||
$ AFile = ""
|
||||
$Loop3:
|
||||
$ OFile = AFile
|
||||
$ AFile = F$Search(File)
|
||||
$ If AFile .Eqs. "" .Or. AFile .Eqs. OFile Then Goto NextEl
|
||||
$ If F$CvTime(F$File(AFile,"RDT")) .Ges. Time Then Goto Makeit
|
||||
$ Goto Loop3
|
||||
$NextEL:
|
||||
$ El = El + 1
|
||||
$ Goto Loop2
|
||||
$EndL:
|
||||
$ arg=arg+1
|
||||
$ If arg .Le. 8 Then Goto Loop
|
||||
$ Goto Exit
|
||||
$
|
||||
$Makeit:
|
||||
$ VV=F$VERIFY(0)
|
||||
$ write sys$output P2
|
||||
$ 'P2
|
||||
$ VV='F$Verify(VV)
|
||||
$Exit:
|
||||
$ If V Then Set Verify
|
||||
$ENDSUBROUTINE
|
||||
@@ -1,151 +0,0 @@
|
||||
# Project: zlib_1_03
|
||||
# Patched for zlib 1.1.2 rw@shadow.org.uk 19980430
|
||||
# test works out-of-the-box, installs `somewhere' on demand
|
||||
|
||||
# Toolflags:
|
||||
CCflags = -c -depend !Depend -IC: -g -throwback -DRISCOS -fah
|
||||
C++flags = -c -depend !Depend -IC: -throwback
|
||||
Linkflags = -aif -c++ -o $@
|
||||
ObjAsmflags = -throwback -NoCache -depend !Depend
|
||||
CMHGflags =
|
||||
LibFileflags = -c -l -o $@
|
||||
Squeezeflags = -o $@
|
||||
|
||||
# change the line below to where _you_ want the library installed.
|
||||
libdest = lib:zlib
|
||||
|
||||
# Final targets:
|
||||
@.lib: @.o.adler32 @.o.compress @.o.crc32 @.o.deflate @.o.gzio \
|
||||
@.o.infblock @.o.infcodes @.o.inffast @.o.inflate @.o.inftrees @.o.infutil @.o.trees \
|
||||
@.o.uncompr @.o.zutil
|
||||
LibFile $(LibFileflags) @.o.adler32 @.o.compress @.o.crc32 @.o.deflate \
|
||||
@.o.gzio @.o.infblock @.o.infcodes @.o.inffast @.o.inflate @.o.inftrees @.o.infutil \
|
||||
@.o.trees @.o.uncompr @.o.zutil
|
||||
test: @.minigzip @.example @.lib
|
||||
@copy @.lib @.libc A~C~DF~L~N~P~Q~RS~TV
|
||||
@echo running tests: hang on.
|
||||
@/@.minigzip -f -9 libc
|
||||
@/@.minigzip -d libc-gz
|
||||
@/@.minigzip -f -1 libc
|
||||
@/@.minigzip -d libc-gz
|
||||
@/@.minigzip -h -9 libc
|
||||
@/@.minigzip -d libc-gz
|
||||
@/@.minigzip -h -1 libc
|
||||
@/@.minigzip -d libc-gz
|
||||
@/@.minigzip -9 libc
|
||||
@/@.minigzip -d libc-gz
|
||||
@/@.minigzip -1 libc
|
||||
@/@.minigzip -d libc-gz
|
||||
@diff @.lib @.libc
|
||||
@echo that should have reported '@.lib and @.libc identical' if you have diff.
|
||||
@/@.example @.fred @.fred
|
||||
@echo that will have given lots of hello!'s.
|
||||
|
||||
@.minigzip: @.o.minigzip @.lib C:o.Stubs
|
||||
Link $(Linkflags) @.o.minigzip @.lib C:o.Stubs
|
||||
@.example: @.o.example @.lib C:o.Stubs
|
||||
Link $(Linkflags) @.o.example @.lib C:o.Stubs
|
||||
|
||||
install: @.lib
|
||||
cdir $(libdest)
|
||||
cdir $(libdest).h
|
||||
@copy @.h.zlib $(libdest).h.zlib A~C~DF~L~N~P~Q~RS~TV
|
||||
@copy @.h.zconf $(libdest).h.zconf A~C~DF~L~N~P~Q~RS~TV
|
||||
@copy @.lib $(libdest).lib A~C~DF~L~N~P~Q~RS~TV
|
||||
@echo okay, installed zlib in $(libdest)
|
||||
|
||||
clean:; remove @.minigzip
|
||||
remove @.example
|
||||
remove @.libc
|
||||
-wipe @.o.* F~r~cV
|
||||
remove @.fred
|
||||
|
||||
# User-editable dependencies:
|
||||
.c.o:
|
||||
cc $(ccflags) -o $@ $<
|
||||
|
||||
# Static dependencies:
|
||||
|
||||
# Dynamic dependencies:
|
||||
o.example: c.example
|
||||
o.example: h.zlib
|
||||
o.example: h.zconf
|
||||
o.minigzip: c.minigzip
|
||||
o.minigzip: h.zlib
|
||||
o.minigzip: h.zconf
|
||||
o.adler32: c.adler32
|
||||
o.adler32: h.zlib
|
||||
o.adler32: h.zconf
|
||||
o.compress: c.compress
|
||||
o.compress: h.zlib
|
||||
o.compress: h.zconf
|
||||
o.crc32: c.crc32
|
||||
o.crc32: h.zlib
|
||||
o.crc32: h.zconf
|
||||
o.deflate: c.deflate
|
||||
o.deflate: h.deflate
|
||||
o.deflate: h.zutil
|
||||
o.deflate: h.zlib
|
||||
o.deflate: h.zconf
|
||||
o.gzio: c.gzio
|
||||
o.gzio: h.zutil
|
||||
o.gzio: h.zlib
|
||||
o.gzio: h.zconf
|
||||
o.infblock: c.infblock
|
||||
o.infblock: h.zutil
|
||||
o.infblock: h.zlib
|
||||
o.infblock: h.zconf
|
||||
o.infblock: h.infblock
|
||||
o.infblock: h.inftrees
|
||||
o.infblock: h.infcodes
|
||||
o.infblock: h.infutil
|
||||
o.infcodes: c.infcodes
|
||||
o.infcodes: h.zutil
|
||||
o.infcodes: h.zlib
|
||||
o.infcodes: h.zconf
|
||||
o.infcodes: h.inftrees
|
||||
o.infcodes: h.infblock
|
||||
o.infcodes: h.infcodes
|
||||
o.infcodes: h.infutil
|
||||
o.infcodes: h.inffast
|
||||
o.inffast: c.inffast
|
||||
o.inffast: h.zutil
|
||||
o.inffast: h.zlib
|
||||
o.inffast: h.zconf
|
||||
o.inffast: h.inftrees
|
||||
o.inffast: h.infblock
|
||||
o.inffast: h.infcodes
|
||||
o.inffast: h.infutil
|
||||
o.inffast: h.inffast
|
||||
o.inflate: c.inflate
|
||||
o.inflate: h.zutil
|
||||
o.inflate: h.zlib
|
||||
o.inflate: h.zconf
|
||||
o.inflate: h.infblock
|
||||
o.inftrees: c.inftrees
|
||||
o.inftrees: h.zutil
|
||||
o.inftrees: h.zlib
|
||||
o.inftrees: h.zconf
|
||||
o.inftrees: h.inftrees
|
||||
o.inftrees: h.inffixed
|
||||
o.infutil: c.infutil
|
||||
o.infutil: h.zutil
|
||||
o.infutil: h.zlib
|
||||
o.infutil: h.zconf
|
||||
o.infutil: h.infblock
|
||||
o.infutil: h.inftrees
|
||||
o.infutil: h.infcodes
|
||||
o.infutil: h.infutil
|
||||
o.trees: c.trees
|
||||
o.trees: h.deflate
|
||||
o.trees: h.zutil
|
||||
o.trees: h.zlib
|
||||
o.trees: h.zconf
|
||||
o.trees: h.trees
|
||||
o.uncompr: c.uncompr
|
||||
o.uncompr: h.zlib
|
||||
o.uncompr: h.zconf
|
||||
o.zutil: c.zutil
|
||||
o.zutil: h.zutil
|
||||
o.zutil: h.zlib
|
||||
o.zutil: h.zconf
|
||||
@@ -1,6 +1,6 @@
|
||||
ZLIB DATA COMPRESSION LIBRARY
|
||||
|
||||
zlib 1.2.1 is a general purpose data compression library. All the code is
|
||||
zlib 1.2.2 is a general purpose data compression library. All the code is
|
||||
thread safe. The data format used by the zlib library is described by RFCs
|
||||
(Request for Comments) 1950 to 1952 in the files
|
||||
http://www.ietf.org/rfc/rfc1950.txt (zlib format), rfc1951.txt (deflate format)
|
||||
@@ -34,7 +34,7 @@ Mark Nelson <markn@ieee.org> wrote an article about zlib for the Jan. 1997
|
||||
issue of Dr. Dobb's Journal; a copy of the article is available in
|
||||
http://dogma.net/markn/articles/zlibtool/zlibtool.htm
|
||||
|
||||
The changes made in version 1.2.1 are documented in the file ChangeLog.
|
||||
The changes made in version 1.2.2 are documented in the file ChangeLog.
|
||||
|
||||
Unsupported third party contributions are provided in directory "contrib".
|
||||
|
||||
@@ -46,7 +46,7 @@ A Perl interface to zlib written by Paul Marquess <pmqs@cpan.org> is in the
|
||||
CPAN (Comprehensive Perl Archive Network) sites
|
||||
http://www.cpan.org/modules/by-module/Compress/
|
||||
|
||||
A Python interface to zlib written by A.M. Kuchling <amk@magnet.com> is
|
||||
A Python interface to zlib written by A.M. Kuchling <amk@amk.ca> is
|
||||
available in Python 1.5 and later versions, see
|
||||
http://www.python.org/doc/lib/module-zlib.html
|
||||
|
||||
@@ -93,7 +93,7 @@ Acknowledgments:
|
||||
|
||||
Copyright notice:
|
||||
|
||||
(C) 1995-2003 Jean-loup Gailly and Mark Adler
|
||||
(C) 1995-2004 Jean-loup Gailly and Mark Adler
|
||||
|
||||
This software is provided 'as-is', without any express or implied
|
||||
warranty. In no event will the authors be held liable for any damages
|
||||
|
||||
212
src/zlib/configure
vendored
212
src/zlib/configure
vendored
@@ -1,212 +0,0 @@
|
||||
#!/bin/sh
|
||||
# configure script for zlib. This script is needed only if
|
||||
# you wish to build a shared library and your system supports them,
|
||||
# of if you need special compiler, flags or install directory.
|
||||
# Otherwise, you can just use directly "make test; make install"
|
||||
#
|
||||
# To create a shared library, use "configure --shared"; by default a static
|
||||
# library is created. If the primitive shared library support provided here
|
||||
# does not work, use ftp://prep.ai.mit.edu/pub/gnu/libtool-*.tar.gz
|
||||
#
|
||||
# To impose specific compiler or flags or install directory, use for example:
|
||||
# prefix=$HOME CC=cc CFLAGS="-O4" ./configure
|
||||
# or for csh/tcsh users:
|
||||
# (setenv prefix $HOME; setenv CC cc; setenv CFLAGS "-O4"; ./configure)
|
||||
# LDSHARED is the command to be used to create a shared library
|
||||
|
||||
# Incorrect settings of CC or CFLAGS may prevent creating a shared library.
|
||||
# If you have problems, try without defining CC and CFLAGS before reporting
|
||||
# an error.
|
||||
|
||||
LIBS=libz.a
|
||||
SHAREDLIB=libz.so
|
||||
VER=`sed -n -e '/VERSION "/s/.*"\(.*\)".*/\1/p' < zlib.h`
|
||||
AR=${AR-"ar rc"}
|
||||
RANLIB=${RANLIB-"ranlib"}
|
||||
prefix=${prefix-/usr/local}
|
||||
exec_prefix=${exec_prefix-'${prefix}'}
|
||||
libdir=${libdir-'${exec_prefix}/lib'}
|
||||
includedir=${includedir-'${prefix}/include'}
|
||||
shared_ext='.so'
|
||||
shared=0
|
||||
gcc=0
|
||||
old_cc="$CC"
|
||||
old_cflags="$CFLAGS"
|
||||
|
||||
while test $# -ge 1
|
||||
do
|
||||
case "$1" in
|
||||
-h* | --h*)
|
||||
echo 'usage:'
|
||||
echo ' configure [--shared] [--prefix=PREFIX] [--exec_prefix=EXPREFIX]'
|
||||
echo ' [--libdir=LIBDIR] [--includedir=INCLUDEDIR]'
|
||||
exit 0;;
|
||||
-p*=* | --p*=*) prefix=`echo $1 | sed 's/[-a-z_]*=//'`; shift;;
|
||||
-e*=* | --e*=*) exec_prefix=`echo $1 | sed 's/[-a-z_]*=//'`; shift;;
|
||||
-l*=* | --libdir=*) libdir=`echo $1 | sed 's/[-a-z_]*=//'`; shift;;
|
||||
-i*=* | --includedir=*) includedir=`echo $1 | sed 's/[-a-z_]*=//'`;shift;;
|
||||
-p* | --p*) prefix="$2"; shift; shift;;
|
||||
-e* | --e*) exec_prefix="$2"; shift; shift;;
|
||||
-l* | --l*) libdir="$2"; shift; shift;;
|
||||
-i* | --i*) includedir="$2"; shift; shift;;
|
||||
-s* | --s*) shared=1; shift;;
|
||||
esac
|
||||
done
|
||||
|
||||
test=ztest$$
|
||||
cat > $test.c <<EOF
|
||||
extern int getchar();
|
||||
int hello() {return getchar();}
|
||||
EOF
|
||||
|
||||
test -z "$CC" && echo Checking for gcc...
|
||||
cc=${CC-gcc}
|
||||
cflags=${CFLAGS-"-O3"}
|
||||
# to force the asm version use: CFLAGS="-O3 -DASMV" ./configure
|
||||
case "$cc" in
|
||||
*gcc*) gcc=1;;
|
||||
esac
|
||||
|
||||
if test "$gcc" -eq 1 && ($cc -c $cflags $test.c) 2>/dev/null; then
|
||||
CC="$cc"
|
||||
SFLAGS=${CFLAGS-"-fPIC -O3"}
|
||||
CFLAGS="$cflags"
|
||||
case `(uname -s || echo unknown) 2>/dev/null` in
|
||||
Linux | linux) LDSHARED=${LDSHARED-"gcc -shared -Wl,-soname,libz.so.1"};;
|
||||
*) LDSHARED=${LDSHARED-"gcc -shared"};;
|
||||
esac
|
||||
else
|
||||
# find system name and corresponding cc options
|
||||
CC=${CC-cc}
|
||||
case `(uname -sr || echo unknown) 2>/dev/null` in
|
||||
HP-UX*) SFLAGS=${CFLAGS-"-O +z"}
|
||||
CFLAGS=${CFLAGS-"-O"}
|
||||
# LDSHARED=${LDSHARED-"ld -b +vnocompatwarnings"}
|
||||
LDSHARED=${LDSHARED-"ld -b"}
|
||||
shared_ext='.sl'
|
||||
SHAREDLIB='libz.sl';;
|
||||
IRIX*) SFLAGS=${CFLAGS-"-ansi -O2 -rpath ."}
|
||||
CFLAGS=${CFLAGS-"-ansi -O2"}
|
||||
LDSHARED=${LDSHARED-"cc -shared"};;
|
||||
OSF1\ V4*) SFLAGS=${CFLAGS-"-O -std1"}
|
||||
CFLAGS=${CFLAGS-"-O -std1"}
|
||||
LDSHARED=${LDSHARED-"cc -shared -Wl,-soname,$SHAREDLIB -Wl,-msym -Wl,-rpath,$(libdir) -Wl,-set_version,${VER}:1.0"};;
|
||||
OSF1*) SFLAGS=${CFLAGS-"-O -std1"}
|
||||
CFLAGS=${CFLAGS-"-O -std1"}
|
||||
LDSHARED=${LDSHARED-"cc -shared"};;
|
||||
QNX*) SFLAGS=${CFLAGS-"-4 -O"}
|
||||
CFLAGS=${CFLAGS-"-4 -O"}
|
||||
LDSHARED=${LDSHARED-"cc"}
|
||||
RANLIB=${RANLIB-"true"}
|
||||
AR="cc -A";;
|
||||
SCO_SV\ 3.2*) SFLAGS=${CFLAGS-"-O3 -dy -KPIC "}
|
||||
CFLAGS=${CFLAGS-"-O3"}
|
||||
LDSHARED=${LDSHARED-"cc -dy -KPIC -G"};;
|
||||
SunOS\ 5*) SFLAGS=${CFLAGS-"-fast -xcg89 -KPIC -R."}
|
||||
CFLAGS=${CFLAGS-"-fast -xcg89"}
|
||||
LDSHARED=${LDSHARED-"cc -G"};;
|
||||
SunOS\ 4*) SFLAGS=${CFLAGS-"-O2 -PIC"}
|
||||
CFLAGS=${CFLAGS-"-O2"}
|
||||
LDSHARED=${LDSHARED-"ld"};;
|
||||
UNIX_System_V\ 4.2.0)
|
||||
SFLAGS=${CFLAGS-"-KPIC -O"}
|
||||
CFLAGS=${CFLAGS-"-O"}
|
||||
LDSHARED=${LDSHARED-"cc -G"};;
|
||||
UNIX_SV\ 4.2MP)
|
||||
SFLAGS=${CFLAGS-"-Kconform_pic -O"}
|
||||
CFLAGS=${CFLAGS-"-O"}
|
||||
LDSHARED=${LDSHARED-"cc -G"};;
|
||||
# send working options for other systems to support@gzip.org
|
||||
*) SFLAGS=${CFLAGS-"-O"}
|
||||
CFLAGS=${CFLAGS-"-O"}
|
||||
LDSHARED=${LDSHARED-"cc -shared"};;
|
||||
esac
|
||||
fi
|
||||
|
||||
if test $shared -eq 1; then
|
||||
echo Checking for shared library support...
|
||||
# we must test in two steps (cc then ld), required at least on SunOS 4.x
|
||||
if test "`($CC -c $SFLAGS $test.c) 2>&1`" = "" &&
|
||||
test "`($LDSHARED -o $test$shared_ext $test.o) 2>&1`" = ""; then
|
||||
CFLAGS="$SFLAGS"
|
||||
LIBS="$SHAREDLIB.$VER"
|
||||
echo Building shared library $SHAREDLIB.$VER with $CC.
|
||||
elif test -z "$old_cc" -a -z "$old_cflags"; then
|
||||
echo No shared library suppport.
|
||||
shared=0;
|
||||
else
|
||||
echo 'No shared library suppport; try without defining CC and CFLAGS'
|
||||
shared=0;
|
||||
fi
|
||||
fi
|
||||
if test $shared -eq 0; then
|
||||
LDSHARED="$CC"
|
||||
echo Building static library $LIBS version $VER with $CC.
|
||||
fi
|
||||
|
||||
cat > $test.c <<EOF
|
||||
#include <unistd.h>
|
||||
int main() { return 0; }
|
||||
EOF
|
||||
if test "`($CC -c $CFLAGS $test.c) 2>&1`" = ""; then
|
||||
CFLAGS="$CFLAGS -DHAVE_UNISTD_H"
|
||||
echo "Checking for unistd.h... Yes."
|
||||
else
|
||||
echo "Checking for unistd.h... No."
|
||||
fi
|
||||
|
||||
cat > $test.c <<EOF
|
||||
#include <errno.h>
|
||||
int main() { return 0; }
|
||||
EOF
|
||||
if test "`($CC -c $CFLAGS $test.c) 2>&1`" = ""; then
|
||||
echo "Checking for errno.h... Yes."
|
||||
else
|
||||
echo "Checking for errno.h... No."
|
||||
CFLAGS="$CFLAGS -DNO_ERRNO_H"
|
||||
fi
|
||||
|
||||
cat > $test.c <<EOF
|
||||
#include <sys/types.h>
|
||||
#include <sys/mman.h>
|
||||
#include <sys/stat.h>
|
||||
caddr_t hello() {
|
||||
return mmap((caddr_t)0, (off_t)0, PROT_READ, MAP_SHARED, 0, (off_t)0);
|
||||
}
|
||||
EOF
|
||||
if test "`($CC -c $CFLAGS $test.c) 2>&1`" = ""; then
|
||||
CFLAGS="$CFLAGS -DUSE_MMAP"
|
||||
echo Checking for mmap support... Yes.
|
||||
else
|
||||
echo Checking for mmap support... No.
|
||||
fi
|
||||
|
||||
CPP=${CPP-"$CC -E"}
|
||||
case $CFLAGS in
|
||||
*ASMV*)
|
||||
if test "`nm $test.o | grep _hello`" = ""; then
|
||||
CPP="$CPP -DNO_UNDERLINE"
|
||||
echo Checking for underline in external names... No.
|
||||
else
|
||||
echo Checking for underline in external names... Yes.
|
||||
fi;;
|
||||
esac
|
||||
|
||||
rm -f $test.[co] $test$shared_ext
|
||||
|
||||
# udpate Makefile
|
||||
sed < Makefile.in "
|
||||
/^CC *=/s%=.*%=$CC%
|
||||
/^CFLAGS *=/s%=.*%=$CFLAGS%
|
||||
/^CPP *=/s%=.*%=$CPP%
|
||||
/^LDSHARED *=/s%=.*%=$LDSHARED%
|
||||
/^LIBS *=/s%=.*%=$LIBS%
|
||||
/^SHAREDLIB *=/s%=.*%=$SHAREDLIB%
|
||||
/^AR *=/s%=.*%=$AR%
|
||||
/^RANLIB *=/s%=.*%=$RANLIB%
|
||||
/^VER *=/s%=.*%=$VER%
|
||||
/^prefix *=/s%=.*%=$prefix%
|
||||
/^exec_prefix *=/s%=.*%=$exec_prefix%
|
||||
/^libdir *=/s%=.*%=$libdir%
|
||||
/^includedir *=/s%=.*%=$includedir%
|
||||
" > Makefile
|
||||
@@ -11,6 +11,14 @@
|
||||
|
||||
/* @(#) $Id$ */
|
||||
|
||||
/*
|
||||
Note on the use of DYNAMIC_CRC_TABLE: there is no mutex or semaphore
|
||||
protection on the static variables used to control the first-use generation
|
||||
of the crc tables. Therefore, if you #define DYNAMIC_CRC_TABLE, you should
|
||||
first call get_crc_table() to initialize the tables before allowing more than
|
||||
one thread to use crc32().
|
||||
*/
|
||||
|
||||
#ifdef MAKECRCH
|
||||
# include <stdio.h>
|
||||
# ifndef DYNAMIC_CRC_TABLE
|
||||
@@ -58,7 +66,7 @@
|
||||
|
||||
#ifdef DYNAMIC_CRC_TABLE
|
||||
|
||||
local int crc_table_empty = 1;
|
||||
local volatile int crc_table_empty = 1;
|
||||
local unsigned long FAR crc_table[TBLS][256];
|
||||
local void make_crc_table OF((void));
|
||||
#ifdef MAKECRCH
|
||||
@@ -95,38 +103,51 @@ local void make_crc_table()
|
||||
{
|
||||
unsigned long c;
|
||||
int n, k;
|
||||
unsigned long poly; /* polynomial exclusive-or pattern */
|
||||
unsigned long poly; /* polynomial exclusive-or pattern */
|
||||
/* terms of polynomial defining this crc (except x^32): */
|
||||
static volatile int first = 1; /* flag to limit concurrent making */
|
||||
static const unsigned char p[] = {0,1,2,4,5,7,8,10,11,12,16,22,23,26};
|
||||
|
||||
/* make exclusive-or pattern from polynomial (0xedb88320UL) */
|
||||
poly = 0UL;
|
||||
for (n = 0; n < sizeof(p)/sizeof(unsigned char); n++)
|
||||
poly |= 1UL << (31 - p[n]);
|
||||
/* See if another task is already doing this (not thread-safe, but better
|
||||
than nothing -- significantly reduces duration of vulnerability in
|
||||
case the advice about DYNAMIC_CRC_TABLE is ignored) */
|
||||
if (first) {
|
||||
first = 0;
|
||||
|
||||
/* generate a crc for every 8-bit value */
|
||||
for (n = 0; n < 256; n++) {
|
||||
c = (unsigned long)n;
|
||||
for (k = 0; k < 8; k++)
|
||||
c = c & 1 ? poly ^ (c >> 1) : c >> 1;
|
||||
crc_table[0][n] = c;
|
||||
}
|
||||
/* make exclusive-or pattern from polynomial (0xedb88320UL) */
|
||||
poly = 0UL;
|
||||
for (n = 0; n < sizeof(p)/sizeof(unsigned char); n++)
|
||||
poly |= 1UL << (31 - p[n]);
|
||||
|
||||
/* generate a crc for every 8-bit value */
|
||||
for (n = 0; n < 256; n++) {
|
||||
c = (unsigned long)n;
|
||||
for (k = 0; k < 8; k++)
|
||||
c = c & 1 ? poly ^ (c >> 1) : c >> 1;
|
||||
crc_table[0][n] = c;
|
||||
}
|
||||
|
||||
#ifdef BYFOUR
|
||||
/* generate crc for each value followed by one, two, and three zeros, and
|
||||
then the byte reversal of those as well as the first table */
|
||||
for (n = 0; n < 256; n++) {
|
||||
c = crc_table[0][n];
|
||||
crc_table[4][n] = REV(c);
|
||||
for (k = 1; k < 4; k++) {
|
||||
c = crc_table[0][c & 0xff] ^ (c >> 8);
|
||||
crc_table[k][n] = c;
|
||||
crc_table[k + 4][n] = REV(c);
|
||||
/* generate crc for each value followed by one, two, and three zeros,
|
||||
and then the byte reversal of those as well as the first table */
|
||||
for (n = 0; n < 256; n++) {
|
||||
c = crc_table[0][n];
|
||||
crc_table[4][n] = REV(c);
|
||||
for (k = 1; k < 4; k++) {
|
||||
c = crc_table[0][c & 0xff] ^ (c >> 8);
|
||||
crc_table[k][n] = c;
|
||||
crc_table[k + 4][n] = REV(c);
|
||||
}
|
||||
}
|
||||
}
|
||||
#endif /* BYFOUR */
|
||||
|
||||
crc_table_empty = 0;
|
||||
crc_table_empty = 0;
|
||||
}
|
||||
else { /* not first */
|
||||
/* wait for the other guy to finish (not efficient, but rare) */
|
||||
while (crc_table_empty)
|
||||
;
|
||||
}
|
||||
|
||||
#ifdef MAKECRCH
|
||||
/* write out CRC tables to crc32.h */
|
||||
@@ -180,9 +201,10 @@ local void write_table(out, table)
|
||||
const unsigned long FAR * ZEXPORT get_crc_table()
|
||||
{
|
||||
#ifdef DYNAMIC_CRC_TABLE
|
||||
if (crc_table_empty) make_crc_table();
|
||||
if (crc_table_empty)
|
||||
make_crc_table();
|
||||
#endif /* DYNAMIC_CRC_TABLE */
|
||||
return (const unsigned long FAR *)crc_table;
|
||||
return (const unsigned long FAR *)crc_table;
|
||||
}
|
||||
|
||||
/* ========================================================================= */
|
||||
|
||||
@@ -1,5 +1,5 @@
|
||||
/* deflate.c -- compress data using the deflation algorithm
|
||||
* Copyright (C) 1995-2003 Jean-loup Gailly.
|
||||
* Copyright (C) 1995-2004 Jean-loup Gailly.
|
||||
* For conditions of distribution and use, see copyright notice in zlib.h
|
||||
*/
|
||||
|
||||
@@ -52,7 +52,7 @@
|
||||
#include "deflate.h"
|
||||
|
||||
const char deflate_copyright[] =
|
||||
" deflate 1.2.1 Copyright 1995-2003 Jean-loup Gailly ";
|
||||
" deflate 1.2.2 Copyright 1995-2004 Jean-loup Gailly ";
|
||||
/*
|
||||
If you use the zlib library in a product, an acknowledgment is welcome
|
||||
in the documentation of your product. If for some reason you cannot
|
||||
|
||||
@@ -95,7 +95,6 @@ typedef struct internal_state {
|
||||
Bytef *pending_out; /* next pending byte to output to the stream */
|
||||
int pending; /* nb of bytes in the pending buffer */
|
||||
int wrap; /* bit 0 true for zlib, bit 1 true for gzip */
|
||||
Byte data_type; /* UNKNOWN, BINARY or ASCII */
|
||||
Byte method; /* STORED (for zip only) or DEFLATED */
|
||||
int last_flush; /* value of flush param for previous deflate call */
|
||||
|
||||
|
||||
@@ -1,48 +0,0 @@
|
||||
# descrip.mms: MMS description file for building zlib on VMS
|
||||
# written by Martin P.J. Zinser <m.zinser@gsi.de>
|
||||
|
||||
cc_defs =
|
||||
c_deb =
|
||||
|
||||
.ifdef __DECC__
|
||||
pref = /prefix=all
|
||||
.endif
|
||||
|
||||
OBJS = adler32.obj, compress.obj, crc32.obj, gzio.obj, uncompr.obj,\
|
||||
deflate.obj, trees.obj, zutil.obj, inflate.obj, infblock.obj,\
|
||||
inftrees.obj, infcodes.obj, infutil.obj, inffast.obj
|
||||
|
||||
CFLAGS= $(C_DEB) $(CC_DEFS) $(PREF)
|
||||
|
||||
all : example.exe minigzip.exe
|
||||
@ write sys$output " Example applications available"
|
||||
libz.olb : libz.olb($(OBJS))
|
||||
@ write sys$output " libz available"
|
||||
|
||||
example.exe : example.obj libz.olb
|
||||
link example,libz.olb/lib
|
||||
|
||||
minigzip.exe : minigzip.obj libz.olb
|
||||
link minigzip,libz.olb/lib,x11vms:xvmsutils.olb/lib
|
||||
|
||||
clean :
|
||||
delete *.obj;*,libz.olb;*
|
||||
|
||||
|
||||
# Other dependencies.
|
||||
adler32.obj : zutil.h zlib.h zconf.h
|
||||
compress.obj : zlib.h zconf.h
|
||||
crc32.obj : zutil.h zlib.h zconf.h
|
||||
deflate.obj : deflate.h zutil.h zlib.h zconf.h
|
||||
example.obj : zlib.h zconf.h
|
||||
gzio.obj : zutil.h zlib.h zconf.h
|
||||
infblock.obj : zutil.h zlib.h zconf.h infblock.h inftrees.h infcodes.h infutil.h
|
||||
infcodes.obj : zutil.h zlib.h zconf.h inftrees.h infutil.h infcodes.h inffast.h
|
||||
inffast.obj : zutil.h zlib.h zconf.h inftrees.h infutil.h inffast.h
|
||||
inflate.obj : zutil.h zlib.h zconf.h infblock.h
|
||||
inftrees.obj : zutil.h zlib.h zconf.h inftrees.h
|
||||
infutil.obj : zutil.h zlib.h zconf.h inftrees.h infutil.h
|
||||
minigzip.obj : zlib.h zconf.h
|
||||
trees.obj : deflate.h zutil.h zlib.h zconf.h
|
||||
uncompr.obj : zlib.h zconf.h
|
||||
zutil.obj : zutil.h zlib.h zconf.h
|
||||
@@ -455,6 +455,10 @@ int ZEXPORT gzread (file, buf, len)
|
||||
s->z_err = Z_ERRNO;
|
||||
break;
|
||||
}
|
||||
if (feof(s->file)) { /* avoid error for empty file */
|
||||
s->z_err = Z_STREAM_END;
|
||||
break;
|
||||
}
|
||||
}
|
||||
s->stream.next_in = s->inbuf;
|
||||
}
|
||||
|
||||
@@ -434,6 +434,9 @@ void FAR *out_desc;
|
||||
}
|
||||
}
|
||||
|
||||
/* handle error breaks in while */
|
||||
if (state->mode == BAD) break;
|
||||
|
||||
/* build code tables */
|
||||
state->next = state->codes;
|
||||
state->lencode = (code const FAR *)(state->next);
|
||||
|
||||
@@ -1,402 +0,0 @@
|
||||
/* infblock.c -- interpret and process block types to last block
|
||||
* Copyright (C) 1995-2002 Mark Adler
|
||||
* For conditions of distribution and use, see copyright notice in zlib.h
|
||||
*/
|
||||
|
||||
#include "zutil.h"
|
||||
#include "infblock.h"
|
||||
#include "inftrees.h"
|
||||
#include "infcodes.h"
|
||||
#include "infutil.h"
|
||||
|
||||
struct inflate_codes_state {int dummy;}; /* for buggy compilers */
|
||||
|
||||
/* simplify the use of the inflate_huft type with some defines */
|
||||
#define exop word.what.Exop
|
||||
#define bits word.what.Bits
|
||||
|
||||
/* Table for deflate from PKZIP's appnote.txt. */
|
||||
local const uInt border[] = { /* Order of the bit length code lengths */
|
||||
16, 17, 18, 0, 8, 7, 9, 6, 10, 5, 11, 4, 12, 3, 13, 2, 14, 1, 15};
|
||||
|
||||
/*
|
||||
Notes beyond the 1.93a appnote.txt:
|
||||
|
||||
1. Distance pointers never point before the beginning of the output
|
||||
stream.
|
||||
2. Distance pointers can point back across blocks, up to 32k away.
|
||||
3. There is an implied maximum of 7 bits for the bit length table and
|
||||
15 bits for the actual data.
|
||||
4. If only one code exists, then it is encoded using one bit. (Zero
|
||||
would be more efficient, but perhaps a little confusing.) If two
|
||||
codes exist, they are coded using one bit each (0 and 1).
|
||||
5. There is no way of sending zero distance codes--a dummy must be
|
||||
sent if there are none. (History: a pre 2.0 version of PKZIP would
|
||||
store blocks with no distance codes, but this was discovered to be
|
||||
too harsh a criterion.) Valid only for 1.93a. 2.04c does allow
|
||||
zero distance codes, which is sent as one code of zero bits in
|
||||
length.
|
||||
6. There are up to 286 literal/length codes. Code 256 represents the
|
||||
end-of-block. Note however that the static length tree defines
|
||||
288 codes just to fill out the Huffman codes. Codes 286 and 287
|
||||
cannot be used though, since there is no length base or extra bits
|
||||
defined for them. Similarily, there are up to 30 distance codes.
|
||||
However, static trees define 32 codes (all 5 bits) to fill out the
|
||||
Huffman codes, but the last two had better not show up in the data.
|
||||
7. Unzip can check dynamic Huffman blocks for complete code sets.
|
||||
The exception is that a single code would not be complete (see #4).
|
||||
8. The five bits following the block type is really the number of
|
||||
literal codes sent minus 257.
|
||||
9. Length codes 8,16,16 are interpreted as 13 length codes of 8 bits
|
||||
(1+6+6). Therefore, to output three times the length, you output
|
||||
three codes (1+1+1), whereas to output four times the same length,
|
||||
you only need two codes (1+3). Hmm.
|
||||
10. In the tree reconstruction algorithm, Code = Code + Increment
|
||||
only if BitLength(i) is not zero. (Pretty obvious.)
|
||||
11. Correction: 4 Bits: # of Bit Length codes - 4 (4 - 19)
|
||||
12. Note: length code 284 can represent 227-258, but length code 285
|
||||
really is 258. The last length deserves its own, short code
|
||||
since it gets used a lot in very redundant files. The length
|
||||
258 is special since 258 - 3 (the min match length) is 255.
|
||||
13. The literal/length and distance code bit lengths are read as a
|
||||
single stream of lengths. It is possible (and advantageous) for
|
||||
a repeat code (16, 17, or 18) to go across the boundary between
|
||||
the two sets of lengths.
|
||||
*/
|
||||
|
||||
|
||||
void inflate_blocks_reset(s, z, c)
|
||||
inflate_blocks_statef *s;
|
||||
z_streamp z;
|
||||
uLongf *c;
|
||||
{
|
||||
if (c != Z_NULL)
|
||||
*c = s->check;
|
||||
if (s->mode == BTREE || s->mode == DTREE)
|
||||
ZFREE(z, s->sub.trees.blens);
|
||||
if (s->mode == CODES)
|
||||
inflate_codes_free(s->sub.decode.codes, z);
|
||||
s->mode = TYPE;
|
||||
s->bitk = 0;
|
||||
s->bitb = 0;
|
||||
s->read = s->write = s->window;
|
||||
if (s->checkfn != Z_NULL)
|
||||
z->adler = s->check = (*s->checkfn)(0L, (const Bytef *)Z_NULL, 0);
|
||||
Tracev((stderr, "inflate: blocks reset\n"));
|
||||
}
|
||||
|
||||
|
||||
inflate_blocks_statef *inflate_blocks_new(z, c, w)
|
||||
z_streamp z;
|
||||
check_func c;
|
||||
uInt w;
|
||||
{
|
||||
inflate_blocks_statef *s;
|
||||
|
||||
if ((s = (inflate_blocks_statef *)ZALLOC
|
||||
(z,1,sizeof(struct inflate_blocks_state))) == Z_NULL)
|
||||
return s;
|
||||
if ((s->hufts =
|
||||
(inflate_huft *)ZALLOC(z, sizeof(inflate_huft), MANY)) == Z_NULL)
|
||||
{
|
||||
ZFREE(z, s);
|
||||
return Z_NULL;
|
||||
}
|
||||
if ((s->window = (Bytef *)ZALLOC(z, 1, w)) == Z_NULL)
|
||||
{
|
||||
ZFREE(z, s->hufts);
|
||||
ZFREE(z, s);
|
||||
return Z_NULL;
|
||||
}
|
||||
s->end = s->window + w;
|
||||
s->checkfn = c;
|
||||
s->mode = TYPE;
|
||||
Tracev((stderr, "inflate: blocks allocated\n"));
|
||||
inflate_blocks_reset(s, z, Z_NULL);
|
||||
return s;
|
||||
}
|
||||
|
||||
|
||||
int inflate_blocks(s, z, r)
|
||||
inflate_blocks_statef *s;
|
||||
z_streamp z;
|
||||
int r;
|
||||
{
|
||||
uInt t; /* temporary storage */
|
||||
uLong b; /* bit buffer */
|
||||
uInt k; /* bits in bit buffer */
|
||||
Bytef *p; /* input data pointer */
|
||||
uInt n; /* bytes available there */
|
||||
Bytef *q; /* output window write pointer */
|
||||
uInt m; /* bytes to end of window or read pointer */
|
||||
|
||||
/* copy input/output information to locals (UPDATE macro restores) */
|
||||
LOAD
|
||||
|
||||
/* process input based on current state */
|
||||
while (1) switch (s->mode)
|
||||
{
|
||||
case TYPE:
|
||||
NEEDBITS(3)
|
||||
t = (uInt)b & 7;
|
||||
s->last = t & 1;
|
||||
switch (t >> 1)
|
||||
{
|
||||
case 0: /* stored */
|
||||
Tracev((stderr, "inflate: stored block%s\n",
|
||||
s->last ? " (last)" : ""));
|
||||
DUMPBITS(3)
|
||||
t = k & 7; /* go to byte boundary */
|
||||
DUMPBITS(t)
|
||||
s->mode = LENS; /* get length of stored block */
|
||||
break;
|
||||
case 1: /* fixed */
|
||||
Tracev((stderr, "inflate: fixed codes block%s\n",
|
||||
s->last ? " (last)" : ""));
|
||||
{
|
||||
uInt bl, bd;
|
||||
inflate_huft *tl, *td;
|
||||
|
||||
inflate_trees_fixed(&bl, &bd, &tl, &td, z);
|
||||
s->sub.decode.codes = inflate_codes_new(bl, bd, tl, td, z);
|
||||
if (s->sub.decode.codes == Z_NULL)
|
||||
{
|
||||
r = Z_MEM_ERROR;
|
||||
LEAVE
|
||||
}
|
||||
}
|
||||
DUMPBITS(3)
|
||||
s->mode = CODES;
|
||||
break;
|
||||
case 2: /* dynamic */
|
||||
Tracev((stderr, "inflate: dynamic codes block%s\n",
|
||||
s->last ? " (last)" : ""));
|
||||
DUMPBITS(3)
|
||||
s->mode = TABLE;
|
||||
break;
|
||||
case 3: /* illegal */
|
||||
DUMPBITS(3)
|
||||
s->mode = BAD;
|
||||
z->msg = (char*)"invalid block type";
|
||||
r = Z_DATA_ERROR;
|
||||
LEAVE
|
||||
}
|
||||
break;
|
||||
case LENS:
|
||||
NEEDBITS(32)
|
||||
if ((((~b) >> 16) & 0xffff) != (b & 0xffff))
|
||||
{
|
||||
s->mode = BAD;
|
||||
z->msg = (char*)"invalid stored block lengths";
|
||||
r = Z_DATA_ERROR;
|
||||
LEAVE
|
||||
}
|
||||
s->sub.left = (uInt)b & 0xffff;
|
||||
b = k = 0; /* dump bits */
|
||||
Tracev((stderr, "inflate: stored length %u\n", s->sub.left));
|
||||
s->mode = s->sub.left ? STORED : (s->last ? DRY : TYPE);
|
||||
break;
|
||||
case STORED:
|
||||
if (n == 0)
|
||||
LEAVE
|
||||
NEEDOUT
|
||||
t = s->sub.left;
|
||||
if (t > n) t = n;
|
||||
if (t > m) t = m;
|
||||
zmemcpy(q, p, t);
|
||||
p += t; n -= t;
|
||||
q += t; m -= t;
|
||||
if ((s->sub.left -= t) != 0)
|
||||
break;
|
||||
Tracev((stderr, "inflate: stored end, %lu total out\n",
|
||||
z->total_out + (q >= s->read ? q - s->read :
|
||||
(s->end - s->read) + (q - s->window))));
|
||||
s->mode = s->last ? DRY : TYPE;
|
||||
break;
|
||||
case TABLE:
|
||||
NEEDBITS(14)
|
||||
s->sub.trees.table = t = (uInt)b & 0x3fff;
|
||||
#ifndef PKZIP_BUG_WORKAROUND
|
||||
if ((t & 0x1f) > 29 || ((t >> 5) & 0x1f) > 29)
|
||||
{
|
||||
s->mode = BAD;
|
||||
z->msg = (char*)"too many length or distance symbols";
|
||||
r = Z_DATA_ERROR;
|
||||
LEAVE
|
||||
}
|
||||
#endif
|
||||
t = 258 + (t & 0x1f) + ((t >> 5) & 0x1f);
|
||||
if ((s->sub.trees.blens = (uIntf*)ZALLOC(z, t, sizeof(uInt))) == Z_NULL)
|
||||
{
|
||||
r = Z_MEM_ERROR;
|
||||
LEAVE
|
||||
}
|
||||
DUMPBITS(14)
|
||||
s->sub.trees.index = 0;
|
||||
Tracev((stderr, "inflate: table sizes ok\n"));
|
||||
s->mode = BTREE;
|
||||
case BTREE:
|
||||
while (s->sub.trees.index < 4 + (s->sub.trees.table >> 10))
|
||||
{
|
||||
NEEDBITS(3)
|
||||
s->sub.trees.blens[border[s->sub.trees.index++]] = (uInt)b & 7;
|
||||
DUMPBITS(3)
|
||||
}
|
||||
while (s->sub.trees.index < 19)
|
||||
s->sub.trees.blens[border[s->sub.trees.index++]] = 0;
|
||||
s->sub.trees.bb = 7;
|
||||
t = inflate_trees_bits(s->sub.trees.blens, &s->sub.trees.bb,
|
||||
&s->sub.trees.tb, s->hufts, z);
|
||||
if (t != Z_OK)
|
||||
{
|
||||
r = t;
|
||||
if (r == Z_DATA_ERROR)
|
||||
{
|
||||
ZFREE(z, s->sub.trees.blens);
|
||||
s->mode = BAD;
|
||||
}
|
||||
LEAVE
|
||||
}
|
||||
s->sub.trees.index = 0;
|
||||
Tracev((stderr, "inflate: bits tree ok\n"));
|
||||
s->mode = DTREE;
|
||||
case DTREE:
|
||||
while (t = s->sub.trees.table,
|
||||
s->sub.trees.index < 258 + (t & 0x1f) + ((t >> 5) & 0x1f))
|
||||
{
|
||||
inflate_huft *h;
|
||||
uInt i, j, c;
|
||||
|
||||
t = s->sub.trees.bb;
|
||||
NEEDBITS(t)
|
||||
h = s->sub.trees.tb + ((uInt)b & inflate_mask[t]);
|
||||
t = h->bits;
|
||||
c = h->base;
|
||||
if (c < 16)
|
||||
{
|
||||
DUMPBITS(t)
|
||||
s->sub.trees.blens[s->sub.trees.index++] = c;
|
||||
}
|
||||
else /* c == 16..18 */
|
||||
{
|
||||
i = c == 18 ? 7 : c - 14;
|
||||
j = c == 18 ? 11 : 3;
|
||||
NEEDBITS(t + i)
|
||||
DUMPBITS(t)
|
||||
j += (uInt)b & inflate_mask[i];
|
||||
DUMPBITS(i)
|
||||
i = s->sub.trees.index;
|
||||
t = s->sub.trees.table;
|
||||
if (i + j > 258 + (t & 0x1f) + ((t >> 5) & 0x1f) ||
|
||||
(c == 16 && i < 1))
|
||||
{
|
||||
ZFREE(z, s->sub.trees.blens);
|
||||
s->mode = BAD;
|
||||
z->msg = (char*)"invalid bit length repeat";
|
||||
r = Z_DATA_ERROR;
|
||||
LEAVE
|
||||
}
|
||||
c = c == 16 ? s->sub.trees.blens[i - 1] : 0;
|
||||
do {
|
||||
s->sub.trees.blens[i++] = c;
|
||||
} while (--j);
|
||||
s->sub.trees.index = i;
|
||||
}
|
||||
}
|
||||
s->sub.trees.tb = Z_NULL;
|
||||
{
|
||||
uInt bl, bd;
|
||||
inflate_huft *tl, *td;
|
||||
inflate_codes_statef *c;
|
||||
|
||||
bl = 9; /* must be <= 9 for lookahead assumptions */
|
||||
bd = 6; /* must be <= 9 for lookahead assumptions */
|
||||
t = s->sub.trees.table;
|
||||
t = inflate_trees_dynamic(257 + (t & 0x1f), 1 + ((t >> 5) & 0x1f),
|
||||
s->sub.trees.blens, &bl, &bd, &tl, &td,
|
||||
s->hufts, z);
|
||||
if (t != Z_OK)
|
||||
{
|
||||
if (t == (uInt)Z_DATA_ERROR)
|
||||
{
|
||||
ZFREE(z, s->sub.trees.blens);
|
||||
s->mode = BAD;
|
||||
}
|
||||
r = t;
|
||||
LEAVE
|
||||
}
|
||||
Tracev((stderr, "inflate: trees ok\n"));
|
||||
if ((c = inflate_codes_new(bl, bd, tl, td, z)) == Z_NULL)
|
||||
{
|
||||
r = Z_MEM_ERROR;
|
||||
LEAVE
|
||||
}
|
||||
s->sub.decode.codes = c;
|
||||
}
|
||||
ZFREE(z, s->sub.trees.blens);
|
||||
s->mode = CODES;
|
||||
case CODES:
|
||||
UPDATE
|
||||
if ((r = inflate_codes(s, z, r)) != Z_STREAM_END)
|
||||
return inflate_flush(s, z, r);
|
||||
r = Z_OK;
|
||||
inflate_codes_free(s->sub.decode.codes, z);
|
||||
LOAD
|
||||
Tracev((stderr, "inflate: codes end, %lu total out\n",
|
||||
z->total_out + (q >= s->read ? q - s->read :
|
||||
(s->end - s->read) + (q - s->window))));
|
||||
if (!s->last)
|
||||
{
|
||||
s->mode = TYPE;
|
||||
break;
|
||||
}
|
||||
s->mode = DRY;
|
||||
case DRY:
|
||||
FLUSH
|
||||
if (s->read != s->write)
|
||||
LEAVE
|
||||
s->mode = DONE;
|
||||
case DONE:
|
||||
r = Z_STREAM_END;
|
||||
LEAVE
|
||||
case BAD:
|
||||
r = Z_DATA_ERROR;
|
||||
LEAVE
|
||||
default:
|
||||
r = Z_STREAM_ERROR;
|
||||
LEAVE
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
int inflate_blocks_free(s, z)
|
||||
inflate_blocks_statef *s;
|
||||
z_streamp z;
|
||||
{
|
||||
inflate_blocks_reset(s, z, Z_NULL);
|
||||
ZFREE(z, s->window);
|
||||
ZFREE(z, s->hufts);
|
||||
ZFREE(z, s);
|
||||
Tracev((stderr, "inflate: blocks freed\n"));
|
||||
return Z_OK;
|
||||
}
|
||||
|
||||
|
||||
void inflate_set_dictionary(s, d, n)
|
||||
inflate_blocks_statef *s;
|
||||
const Bytef *d;
|
||||
uInt n;
|
||||
{
|
||||
zmemcpy(s->window, d, n);
|
||||
s->read = s->write = s->window + n;
|
||||
}
|
||||
|
||||
/* Returns true if inflate is currently at the end of a block generated
|
||||
* by Z_SYNC_FLUSH or Z_FULL_FLUSH.
|
||||
* IN assertion: s != Z_NULL
|
||||
*/
|
||||
int inflate_blocks_sync_point(s)
|
||||
inflate_blocks_statef *s;
|
||||
{
|
||||
return s->mode == LENS;
|
||||
}
|
||||
@@ -1,39 +0,0 @@
|
||||
/* infblock.h -- header to use infblock.c
|
||||
* Copyright (C) 1995-2002 Mark Adler
|
||||
* For conditions of distribution and use, see copyright notice in zlib.h
|
||||
*/
|
||||
|
||||
/* WARNING: this file should *not* be used by applications. It is
|
||||
part of the implementation of the compression library and is
|
||||
subject to change. Applications should only use zlib.h.
|
||||
*/
|
||||
|
||||
struct inflate_blocks_state;
|
||||
typedef struct inflate_blocks_state FAR inflate_blocks_statef;
|
||||
|
||||
extern inflate_blocks_statef * inflate_blocks_new OF((
|
||||
z_streamp z,
|
||||
check_func c, /* check function */
|
||||
uInt w)); /* window size */
|
||||
|
||||
extern int inflate_blocks OF((
|
||||
inflate_blocks_statef *,
|
||||
z_streamp ,
|
||||
int)); /* initial return code */
|
||||
|
||||
extern void inflate_blocks_reset OF((
|
||||
inflate_blocks_statef *,
|
||||
z_streamp ,
|
||||
uLongf *)); /* check value on output */
|
||||
|
||||
extern int inflate_blocks_free OF((
|
||||
inflate_blocks_statef *,
|
||||
z_streamp));
|
||||
|
||||
extern void inflate_set_dictionary OF((
|
||||
inflate_blocks_statef *s,
|
||||
const Bytef *d, /* dictionary */
|
||||
uInt n)); /* dictionary length */
|
||||
|
||||
extern int inflate_blocks_sync_point OF((
|
||||
inflate_blocks_statef *s));
|
||||
@@ -1,251 +0,0 @@
|
||||
/* infcodes.c -- process literals and length/distance pairs
|
||||
* Copyright (C) 1995-2002 Mark Adler
|
||||
* For conditions of distribution and use, see copyright notice in zlib.h
|
||||
*/
|
||||
|
||||
#include "zutil.h"
|
||||
#include "inftrees.h"
|
||||
#include "infblock.h"
|
||||
#include "infcodes.h"
|
||||
#include "infutil.h"
|
||||
#include "inffast.h"
|
||||
|
||||
/* simplify the use of the inflate_huft type with some defines */
|
||||
#define exop word.what.Exop
|
||||
#define bits word.what.Bits
|
||||
|
||||
typedef enum { /* waiting for "i:"=input, "o:"=output, "x:"=nothing */
|
||||
START, /* x: set up for LEN */
|
||||
LEN, /* i: get length/literal/eob next */
|
||||
LENEXT, /* i: getting length extra (have base) */
|
||||
DIST, /* i: get distance next */
|
||||
DISTEXT, /* i: getting distance extra */
|
||||
COPY, /* o: copying bytes in window, waiting for space */
|
||||
LIT, /* o: got literal, waiting for output space */
|
||||
WASH, /* o: got eob, possibly still output waiting */
|
||||
END, /* x: got eob and all data flushed */
|
||||
BADCODE} /* x: got error */
|
||||
inflate_codes_mode;
|
||||
|
||||
/* inflate codes private state */
|
||||
struct inflate_codes_state {
|
||||
|
||||
/* mode */
|
||||
inflate_codes_mode mode; /* current inflate_codes mode */
|
||||
|
||||
/* mode dependent information */
|
||||
uInt len;
|
||||
union {
|
||||
struct {
|
||||
inflate_huft *tree; /* pointer into tree */
|
||||
uInt need; /* bits needed */
|
||||
} code; /* if LEN or DIST, where in tree */
|
||||
uInt lit; /* if LIT, literal */
|
||||
struct {
|
||||
uInt get; /* bits to get for extra */
|
||||
uInt dist; /* distance back to copy from */
|
||||
} copy; /* if EXT or COPY, where and how much */
|
||||
} sub; /* submode */
|
||||
|
||||
/* mode independent information */
|
||||
Byte lbits; /* ltree bits decoded per branch */
|
||||
Byte dbits; /* dtree bits decoder per branch */
|
||||
inflate_huft *ltree; /* literal/length/eob tree */
|
||||
inflate_huft *dtree; /* distance tree */
|
||||
|
||||
};
|
||||
|
||||
|
||||
inflate_codes_statef *inflate_codes_new(bl, bd, tl, td, z)
|
||||
uInt bl, bd;
|
||||
inflate_huft *tl;
|
||||
inflate_huft *td; /* need separate declaration for Borland C++ */
|
||||
z_streamp z;
|
||||
{
|
||||
inflate_codes_statef *c;
|
||||
|
||||
if ((c = (inflate_codes_statef *)
|
||||
ZALLOC(z,1,sizeof(struct inflate_codes_state))) != Z_NULL)
|
||||
{
|
||||
c->mode = START;
|
||||
c->lbits = (Byte)bl;
|
||||
c->dbits = (Byte)bd;
|
||||
c->ltree = tl;
|
||||
c->dtree = td;
|
||||
Tracev((stderr, "inflate: codes new\n"));
|
||||
}
|
||||
return c;
|
||||
}
|
||||
|
||||
|
||||
int inflate_codes(s, z, r)
|
||||
inflate_blocks_statef *s;
|
||||
z_streamp z;
|
||||
int r;
|
||||
{
|
||||
uInt j; /* temporary storage */
|
||||
inflate_huft *t; /* temporary pointer */
|
||||
uInt e; /* extra bits or operation */
|
||||
uLong b; /* bit buffer */
|
||||
uInt k; /* bits in bit buffer */
|
||||
Bytef *p; /* input data pointer */
|
||||
uInt n; /* bytes available there */
|
||||
Bytef *q; /* output window write pointer */
|
||||
uInt m; /* bytes to end of window or read pointer */
|
||||
Bytef *f; /* pointer to copy strings from */
|
||||
inflate_codes_statef *c = s->sub.decode.codes; /* codes state */
|
||||
|
||||
/* copy input/output information to locals (UPDATE macro restores) */
|
||||
LOAD
|
||||
|
||||
/* process input and output based on current state */
|
||||
while (1) switch (c->mode)
|
||||
{ /* waiting for "i:"=input, "o:"=output, "x:"=nothing */
|
||||
case START: /* x: set up for LEN */
|
||||
#ifndef SLOW
|
||||
if (m >= 258 && n >= 10)
|
||||
{
|
||||
UPDATE
|
||||
r = inflate_fast(c->lbits, c->dbits, c->ltree, c->dtree, s, z);
|
||||
LOAD
|
||||
if (r != Z_OK)
|
||||
{
|
||||
c->mode = r == Z_STREAM_END ? WASH : BADCODE;
|
||||
break;
|
||||
}
|
||||
}
|
||||
#endif /* !SLOW */
|
||||
c->sub.code.need = c->lbits;
|
||||
c->sub.code.tree = c->ltree;
|
||||
c->mode = LEN;
|
||||
case LEN: /* i: get length/literal/eob next */
|
||||
j = c->sub.code.need;
|
||||
NEEDBITS(j)
|
||||
t = c->sub.code.tree + ((uInt)b & inflate_mask[j]);
|
||||
DUMPBITS(t->bits)
|
||||
e = (uInt)(t->exop);
|
||||
if (e == 0) /* literal */
|
||||
{
|
||||
c->sub.lit = t->base;
|
||||
Tracevv((stderr, t->base >= 0x20 && t->base < 0x7f ?
|
||||
"inflate: literal '%c'\n" :
|
||||
"inflate: literal 0x%02x\n", t->base));
|
||||
c->mode = LIT;
|
||||
break;
|
||||
}
|
||||
if (e & 16) /* length */
|
||||
{
|
||||
c->sub.copy.get = e & 15;
|
||||
c->len = t->base;
|
||||
c->mode = LENEXT;
|
||||
break;
|
||||
}
|
||||
if ((e & 64) == 0) /* next table */
|
||||
{
|
||||
c->sub.code.need = e;
|
||||
c->sub.code.tree = t + t->base;
|
||||
break;
|
||||
}
|
||||
if (e & 32) /* end of block */
|
||||
{
|
||||
Tracevv((stderr, "inflate: end of block\n"));
|
||||
c->mode = WASH;
|
||||
break;
|
||||
}
|
||||
c->mode = BADCODE; /* invalid code */
|
||||
z->msg = (char*)"invalid literal/length code";
|
||||
r = Z_DATA_ERROR;
|
||||
LEAVE
|
||||
case LENEXT: /* i: getting length extra (have base) */
|
||||
j = c->sub.copy.get;
|
||||
NEEDBITS(j)
|
||||
c->len += (uInt)b & inflate_mask[j];
|
||||
DUMPBITS(j)
|
||||
c->sub.code.need = c->dbits;
|
||||
c->sub.code.tree = c->dtree;
|
||||
Tracevv((stderr, "inflate: length %u\n", c->len));
|
||||
c->mode = DIST;
|
||||
case DIST: /* i: get distance next */
|
||||
j = c->sub.code.need;
|
||||
NEEDBITS(j)
|
||||
t = c->sub.code.tree + ((uInt)b & inflate_mask[j]);
|
||||
DUMPBITS(t->bits)
|
||||
e = (uInt)(t->exop);
|
||||
if (e & 16) /* distance */
|
||||
{
|
||||
c->sub.copy.get = e & 15;
|
||||
c->sub.copy.dist = t->base;
|
||||
c->mode = DISTEXT;
|
||||
break;
|
||||
}
|
||||
if ((e & 64) == 0) /* next table */
|
||||
{
|
||||
c->sub.code.need = e;
|
||||
c->sub.code.tree = t + t->base;
|
||||
break;
|
||||
}
|
||||
c->mode = BADCODE; /* invalid code */
|
||||
z->msg = (char*)"invalid distance code";
|
||||
r = Z_DATA_ERROR;
|
||||
LEAVE
|
||||
case DISTEXT: /* i: getting distance extra */
|
||||
j = c->sub.copy.get;
|
||||
NEEDBITS(j)
|
||||
c->sub.copy.dist += (uInt)b & inflate_mask[j];
|
||||
DUMPBITS(j)
|
||||
Tracevv((stderr, "inflate: distance %u\n", c->sub.copy.dist));
|
||||
c->mode = COPY;
|
||||
case COPY: /* o: copying bytes in window, waiting for space */
|
||||
f = q - c->sub.copy.dist;
|
||||
while (f < s->window) /* modulo window size-"while" instead */
|
||||
f += s->end - s->window; /* of "if" handles invalid distances */
|
||||
while (c->len)
|
||||
{
|
||||
NEEDOUT
|
||||
OUTBYTE(*f++)
|
||||
if (f == s->end)
|
||||
f = s->window;
|
||||
c->len--;
|
||||
}
|
||||
c->mode = START;
|
||||
break;
|
||||
case LIT: /* o: got literal, waiting for output space */
|
||||
NEEDOUT
|
||||
OUTBYTE(c->sub.lit)
|
||||
c->mode = START;
|
||||
break;
|
||||
case WASH: /* o: got eob, possibly more output */
|
||||
if (k > 7) /* return unused byte, if any */
|
||||
{
|
||||
Assert(k < 16, "inflate_codes grabbed too many bytes")
|
||||
k -= 8;
|
||||
n++;
|
||||
p--; /* can always return one */
|
||||
}
|
||||
FLUSH
|
||||
if (s->read != s->write)
|
||||
LEAVE
|
||||
c->mode = END;
|
||||
case END:
|
||||
r = Z_STREAM_END;
|
||||
LEAVE
|
||||
case BADCODE: /* x: got error */
|
||||
r = Z_DATA_ERROR;
|
||||
LEAVE
|
||||
default:
|
||||
r = Z_STREAM_ERROR;
|
||||
LEAVE
|
||||
}
|
||||
#ifdef NEED_DUMMY_RETURN
|
||||
return Z_STREAM_ERROR; /* Some dumb compilers complain without this */
|
||||
#endif
|
||||
}
|
||||
|
||||
|
||||
void inflate_codes_free(c, z)
|
||||
inflate_codes_statef *c;
|
||||
z_streamp z;
|
||||
{
|
||||
ZFREE(z, c);
|
||||
Tracev((stderr, "inflate: codes free\n"));
|
||||
}
|
||||
@@ -1,27 +0,0 @@
|
||||
/* infcodes.h -- header to use infcodes.c
|
||||
* Copyright (C) 1995-2002 Mark Adler
|
||||
* For conditions of distribution and use, see copyright notice in zlib.h
|
||||
*/
|
||||
|
||||
/* WARNING: this file should *not* be used by applications. It is
|
||||
part of the implementation of the compression library and is
|
||||
subject to change. Applications should only use zlib.h.
|
||||
*/
|
||||
|
||||
struct inflate_codes_state;
|
||||
typedef struct inflate_codes_state FAR inflate_codes_statef;
|
||||
|
||||
extern inflate_codes_statef *inflate_codes_new OF((
|
||||
uInt, uInt,
|
||||
inflate_huft *, inflate_huft *,
|
||||
z_streamp ));
|
||||
|
||||
extern int inflate_codes OF((
|
||||
inflate_blocks_statef *,
|
||||
z_streamp ,
|
||||
int));
|
||||
|
||||
extern void inflate_codes_free OF((
|
||||
inflate_codes_statef *,
|
||||
z_streamp ));
|
||||
|
||||
@@ -1,5 +1,5 @@
|
||||
/* inffast.c -- fast decoding
|
||||
* Copyright (C) 1995-2003 Mark Adler
|
||||
* Copyright (C) 1995-2004 Mark Adler
|
||||
* For conditions of distribution and use, see copyright notice in zlib.h
|
||||
*/
|
||||
|
||||
@@ -19,7 +19,7 @@
|
||||
- none
|
||||
No measurable difference:
|
||||
- Pentium III (Anderson)
|
||||
- 68060 (Nikl)
|
||||
- M68060 (Nikl)
|
||||
*/
|
||||
#ifdef POSTINC
|
||||
# define OFF 0
|
||||
|
||||
@@ -109,6 +109,7 @@ z_streamp strm;
|
||||
state = (struct inflate_state FAR *)strm->state;
|
||||
strm->total_in = strm->total_out = state->total = 0;
|
||||
strm->msg = Z_NULL;
|
||||
strm->adler = 1; /* to support ill-conceived Java test suite */
|
||||
state->mode = HEAD;
|
||||
state->last = 0;
|
||||
state->havedict = 0;
|
||||
@@ -861,6 +862,9 @@ int flush;
|
||||
}
|
||||
}
|
||||
|
||||
/* handle error breaks in while */
|
||||
if (state->mode == BAD) break;
|
||||
|
||||
/* build code tables */
|
||||
state->next = state->codes;
|
||||
state->lencode = (code const FAR *)(state->next);
|
||||
|
||||
@@ -1,5 +1,5 @@
|
||||
/* inftrees.c -- generate Huffman trees for efficient decoding
|
||||
* Copyright (C) 1995-2003 Mark Adler
|
||||
* Copyright (C) 1995-2004 Mark Adler
|
||||
* For conditions of distribution and use, see copyright notice in zlib.h
|
||||
*/
|
||||
|
||||
@@ -9,7 +9,7 @@
|
||||
#define MAXBITS 15
|
||||
|
||||
const char inflate_copyright[] =
|
||||
" inflate 1.2.1 Copyright 1995-2003 Mark Adler ";
|
||||
" inflate 1.2.2 Copyright 1995-2004 Mark Adler ";
|
||||
/*
|
||||
If you use the zlib library in a product, an acknowledgment is welcome
|
||||
in the documentation of your product. If for some reason you cannot
|
||||
@@ -62,7 +62,7 @@ unsigned short FAR *work;
|
||||
35, 43, 51, 59, 67, 83, 99, 115, 131, 163, 195, 227, 258, 0, 0};
|
||||
static const unsigned short lext[31] = { /* Length codes 257..285 extra */
|
||||
16, 16, 16, 16, 16, 16, 16, 16, 17, 17, 17, 17, 18, 18, 18, 18,
|
||||
19, 19, 19, 19, 20, 20, 20, 20, 21, 21, 21, 21, 16, 76, 66};
|
||||
19, 19, 19, 19, 20, 20, 20, 20, 21, 21, 21, 21, 16, 199, 198};
|
||||
static const unsigned short dbase[32] = { /* Distance codes 0..29 base */
|
||||
1, 2, 3, 4, 5, 7, 9, 13, 17, 25, 33, 49, 65, 97, 129, 193,
|
||||
257, 385, 513, 769, 1025, 1537, 2049, 3073, 4097, 6145,
|
||||
@@ -114,7 +114,15 @@ unsigned short FAR *work;
|
||||
for (max = MAXBITS; max >= 1; max--)
|
||||
if (count[max] != 0) break;
|
||||
if (root > max) root = max;
|
||||
if (max == 0) return -1; /* no codes! */
|
||||
if (max == 0) { /* no symbols to code at all */
|
||||
this.op = (unsigned char)64; /* invalid code marker */
|
||||
this.bits = (unsigned char)1;
|
||||
this.val = (unsigned short)0;
|
||||
*(*table)++ = this; /* make a table to force an error */
|
||||
*(*table)++ = this;
|
||||
*bits = 1;
|
||||
return 0; /* no symbols, but wait for decoding to report error */
|
||||
}
|
||||
for (min = 1; min <= MAXBITS; min++)
|
||||
if (count[min] != 0) break;
|
||||
if (root < min) root = min;
|
||||
@@ -295,7 +303,6 @@ unsigned short FAR *work;
|
||||
drop = 0;
|
||||
len = root;
|
||||
next = *table;
|
||||
curr = root;
|
||||
this.bits = (unsigned char)len;
|
||||
}
|
||||
|
||||
|
||||
@@ -1,87 +0,0 @@
|
||||
/* inflate_util.c -- data and routines common to blocks and codes
|
||||
* Copyright (C) 1995-2002 Mark Adler
|
||||
* For conditions of distribution and use, see copyright notice in zlib.h
|
||||
*/
|
||||
|
||||
#include "zutil.h"
|
||||
#include "infblock.h"
|
||||
#include "inftrees.h"
|
||||
#include "infcodes.h"
|
||||
#include "infutil.h"
|
||||
|
||||
struct inflate_codes_state {int dummy;}; /* for buggy compilers */
|
||||
|
||||
/* And'ing with mask[n] masks the lower n bits */
|
||||
uInt inflate_mask[17] = {
|
||||
0x0000,
|
||||
0x0001, 0x0003, 0x0007, 0x000f, 0x001f, 0x003f, 0x007f, 0x00ff,
|
||||
0x01ff, 0x03ff, 0x07ff, 0x0fff, 0x1fff, 0x3fff, 0x7fff, 0xffff
|
||||
};
|
||||
|
||||
|
||||
/* copy as much as possible from the sliding window to the output area */
|
||||
int inflate_flush(s, z, r)
|
||||
inflate_blocks_statef *s;
|
||||
z_streamp z;
|
||||
int r;
|
||||
{
|
||||
uInt n;
|
||||
Bytef *p;
|
||||
Bytef *q;
|
||||
|
||||
/* local copies of source and destination pointers */
|
||||
p = z->next_out;
|
||||
q = s->read;
|
||||
|
||||
/* compute number of bytes to copy as far as end of window */
|
||||
n = (uInt)((q <= s->write ? s->write : s->end) - q);
|
||||
if (n > z->avail_out) n = z->avail_out;
|
||||
if (n && r == Z_BUF_ERROR) r = Z_OK;
|
||||
|
||||
/* update counters */
|
||||
z->avail_out -= n;
|
||||
z->total_out += n;
|
||||
|
||||
/* update check information */
|
||||
if (s->checkfn != Z_NULL)
|
||||
z->adler = s->check = (*s->checkfn)(s->check, q, n);
|
||||
|
||||
/* copy as far as end of window */
|
||||
zmemcpy(p, q, n);
|
||||
p += n;
|
||||
q += n;
|
||||
|
||||
/* see if more to copy at beginning of window */
|
||||
if (q == s->end)
|
||||
{
|
||||
/* wrap pointers */
|
||||
q = s->window;
|
||||
if (s->write == s->end)
|
||||
s->write = s->window;
|
||||
|
||||
/* compute bytes to copy */
|
||||
n = (uInt)(s->write - q);
|
||||
if (n > z->avail_out) n = z->avail_out;
|
||||
if (n && r == Z_BUF_ERROR) r = Z_OK;
|
||||
|
||||
/* update counters */
|
||||
z->avail_out -= n;
|
||||
z->total_out += n;
|
||||
|
||||
/* update check information */
|
||||
if (s->checkfn != Z_NULL)
|
||||
z->adler = s->check = (*s->checkfn)(s->check, q, n);
|
||||
|
||||
/* copy */
|
||||
zmemcpy(p, q, n);
|
||||
p += n;
|
||||
q += n;
|
||||
}
|
||||
|
||||
/* update pointers */
|
||||
z->next_out = p;
|
||||
s->read = q;
|
||||
|
||||
/* done */
|
||||
return r;
|
||||
}
|
||||
@@ -1,98 +0,0 @@
|
||||
/* infutil.h -- types and macros common to blocks and codes
|
||||
* Copyright (C) 1995-2002 Mark Adler
|
||||
* For conditions of distribution and use, see copyright notice in zlib.h
|
||||
*/
|
||||
|
||||
/* WARNING: this file should *not* be used by applications. It is
|
||||
part of the implementation of the compression library and is
|
||||
subject to change. Applications should only use zlib.h.
|
||||
*/
|
||||
|
||||
#ifndef _INFUTIL_H
|
||||
#define _INFUTIL_H
|
||||
|
||||
typedef enum {
|
||||
TYPE, /* get type bits (3, including end bit) */
|
||||
LENS, /* get lengths for stored */
|
||||
STORED, /* processing stored block */
|
||||
TABLE, /* get table lengths */
|
||||
BTREE, /* get bit lengths tree for a dynamic block */
|
||||
DTREE, /* get length, distance trees for a dynamic block */
|
||||
CODES, /* processing fixed or dynamic block */
|
||||
DRY, /* output remaining window bytes */
|
||||
DONE, /* finished last block, done */
|
||||
BAD} /* got a data error--stuck here */
|
||||
inflate_block_mode;
|
||||
|
||||
/* inflate blocks semi-private state */
|
||||
struct inflate_blocks_state {
|
||||
|
||||
/* mode */
|
||||
inflate_block_mode mode; /* current inflate_block mode */
|
||||
|
||||
/* mode dependent information */
|
||||
union {
|
||||
uInt left; /* if STORED, bytes left to copy */
|
||||
struct {
|
||||
uInt table; /* table lengths (14 bits) */
|
||||
uInt index; /* index into blens (or border) */
|
||||
uIntf *blens; /* bit lengths of codes */
|
||||
uInt bb; /* bit length tree depth */
|
||||
inflate_huft *tb; /* bit length decoding tree */
|
||||
} trees; /* if DTREE, decoding info for trees */
|
||||
struct {
|
||||
inflate_codes_statef
|
||||
*codes;
|
||||
} decode; /* if CODES, current state */
|
||||
} sub; /* submode */
|
||||
uInt last; /* true if this block is the last block */
|
||||
|
||||
/* mode independent information */
|
||||
uInt bitk; /* bits in bit buffer */
|
||||
uLong bitb; /* bit buffer */
|
||||
inflate_huft *hufts; /* single malloc for tree space */
|
||||
Bytef *window; /* sliding window */
|
||||
Bytef *end; /* one byte after sliding window */
|
||||
Bytef *read; /* window read pointer */
|
||||
Bytef *write; /* window write pointer */
|
||||
check_func checkfn; /* check function */
|
||||
uLong check; /* check on output */
|
||||
|
||||
};
|
||||
|
||||
|
||||
/* defines for inflate input/output */
|
||||
/* update pointers and return */
|
||||
#define UPDBITS {s->bitb=b;s->bitk=k;}
|
||||
#define UPDIN {z->avail_in=n;z->total_in+=p-z->next_in;z->next_in=p;}
|
||||
#define UPDOUT {s->write=q;}
|
||||
#define UPDATE {UPDBITS UPDIN UPDOUT}
|
||||
#define LEAVE {UPDATE return inflate_flush(s,z,r);}
|
||||
/* get bytes and bits */
|
||||
#define LOADIN {p=z->next_in;n=z->avail_in;b=s->bitb;k=s->bitk;}
|
||||
#define NEEDBYTE {if(n)r=Z_OK;else LEAVE}
|
||||
#define NEXTBYTE (n--,*p++)
|
||||
#define NEEDBITS(j) {while(k<(j)){NEEDBYTE;b|=((uLong)NEXTBYTE)<<k;k+=8;}}
|
||||
#define DUMPBITS(j) {b>>=(j);k-=(j);}
|
||||
/* output bytes */
|
||||
#define WAVAIL (uInt)(q<s->read?s->read-q-1:s->end-q)
|
||||
#define LOADOUT {q=s->write;m=(uInt)WAVAIL;}
|
||||
#define WRAP {if(q==s->end&&s->read!=s->window){q=s->window;m=(uInt)WAVAIL;}}
|
||||
#define FLUSH {UPDOUT r=inflate_flush(s,z,r); LOADOUT}
|
||||
#define NEEDOUT {if(m==0){WRAP if(m==0){FLUSH WRAP if(m==0) LEAVE}}r=Z_OK;}
|
||||
#define OUTBYTE(a) {*q++=(Byte)(a);m--;}
|
||||
/* load local pointers */
|
||||
#define LOAD {LOADIN LOADOUT}
|
||||
|
||||
/* masks for lower bits (size given to avoid silly warnings with Visual C++) */
|
||||
extern uInt inflate_mask[17];
|
||||
|
||||
/* copy as much as possible from the sliding window to the output area */
|
||||
extern int inflate_flush OF((
|
||||
inflate_blocks_statef *,
|
||||
z_streamp ,
|
||||
int));
|
||||
|
||||
struct internal_state {int dummy;}; /* for buggy compilers */
|
||||
|
||||
#endif
|
||||
@@ -1,85 +0,0 @@
|
||||
/* maketree.c -- make inffixed.h table for decoding fixed codes
|
||||
* Copyright (C) 1995-2002 Mark Adler
|
||||
* For conditions of distribution and use, see copyright notice in zlib.h
|
||||
*/
|
||||
|
||||
/* WARNING: this file should *not* be used by applications. It is
|
||||
part of the implementation of the compression library and is
|
||||
subject to change. Applications should only use zlib.h.
|
||||
*/
|
||||
|
||||
/* This program is included in the distribution for completeness.
|
||||
You do not need to compile or run this program since inffixed.h
|
||||
is already included in the distribution. To use this program
|
||||
you need to compile zlib with BUILDFIXED defined and then compile
|
||||
and link this program with the zlib library. Then the output of
|
||||
this program can be piped to inffixed.h. */
|
||||
|
||||
#include <stdio.h>
|
||||
#include <stdlib.h>
|
||||
#include "zutil.h"
|
||||
#include "inftrees.h"
|
||||
|
||||
/* simplify the use of the inflate_huft type with some defines */
|
||||
#define exop word.what.Exop
|
||||
#define bits word.what.Bits
|
||||
|
||||
/* generate initialization table for an inflate_huft structure array */
|
||||
void maketree(uInt b, inflate_huft *t)
|
||||
{
|
||||
int i, e;
|
||||
|
||||
i = 0;
|
||||
while (1)
|
||||
{
|
||||
e = t[i].exop;
|
||||
if (e && (e & (16+64)) == 0) /* table pointer */
|
||||
{
|
||||
fprintf(stderr, "maketree: cannot initialize sub-tables!\n");
|
||||
exit(1);
|
||||
}
|
||||
if (i % 4 == 0)
|
||||
printf("\n ");
|
||||
printf(" {{{%u,%u}},%u}", t[i].exop, t[i].bits, t[i].base);
|
||||
if (++i == (1<<b))
|
||||
break;
|
||||
putchar(',');
|
||||
}
|
||||
puts("");
|
||||
}
|
||||
|
||||
/* create the fixed tables in C initialization syntax */
|
||||
void main(void)
|
||||
{
|
||||
int r;
|
||||
uInt bl, bd;
|
||||
inflate_huft *tl, *td;
|
||||
z_stream z;
|
||||
|
||||
z.zalloc = zcalloc;
|
||||
z.opaque = (voidpf)0;
|
||||
z.zfree = zcfree;
|
||||
r = inflate_trees_fixed(&bl, &bd, &tl, &td, &z);
|
||||
if (r)
|
||||
{
|
||||
fprintf(stderr, "inflate_trees_fixed error %d\n", r);
|
||||
return;
|
||||
}
|
||||
puts("/* inffixed.h -- table for decoding fixed codes");
|
||||
puts(" * Generated automatically by the maketree.c program");
|
||||
puts(" */");
|
||||
puts("");
|
||||
puts("/* WARNING: this file should *not* be used by applications. It is");
|
||||
puts(" part of the implementation of the compression library and is");
|
||||
puts(" subject to change. Applications should only use zlib.h.");
|
||||
puts(" */");
|
||||
puts("");
|
||||
printf("local uInt fixed_bl = %d;\n", bl);
|
||||
printf("local uInt fixed_bd = %d;\n", bd);
|
||||
printf("local inflate_huft fixed_tl[] = {");
|
||||
maketree(bl, tl);
|
||||
puts(" };");
|
||||
printf("local inflate_huft fixed_td[] = {");
|
||||
maketree(bd, td);
|
||||
puts(" };");
|
||||
}
|
||||
@@ -931,7 +931,7 @@ void _tr_flush_block(s, buf, stored_len, eof)
|
||||
if (s->level > 0) {
|
||||
|
||||
/* Check if the file is ascii or binary */
|
||||
if (s->data_type == Z_UNKNOWN) set_data_type(s);
|
||||
if (s->strm->data_type == Z_UNKNOWN) set_data_type(s);
|
||||
|
||||
/* Construct the literal and distance trees */
|
||||
build_tree(s, (tree_desc *)(&(s->l_desc)));
|
||||
@@ -1131,7 +1131,7 @@ local void set_data_type(s)
|
||||
while (n < 7) bin_freq += s->dyn_ltree[n++].Freq;
|
||||
while (n < 128) ascii_freq += s->dyn_ltree[n++].Freq;
|
||||
while (n < LITERALS) bin_freq += s->dyn_ltree[n++].Freq;
|
||||
s->data_type = (Byte)(bin_freq > (ascii_freq >> 2) ? Z_BINARY : Z_ASCII);
|
||||
s->strm->data_type = bin_freq > (ascii_freq >> 2) ? Z_BINARY : Z_ASCII;
|
||||
}
|
||||
|
||||
/* ===========================================================================
|
||||
|
||||
@@ -1,5 +1,5 @@
|
||||
/* zconf.h -- configuration of the zlib compression library
|
||||
* Copyright (C) 1995-2003 Jean-loup Gailly.
|
||||
* Copyright (C) 1995-2004 Jean-loup Gailly.
|
||||
* For conditions of distribution and use, see copyright notice in zlib.h
|
||||
*/
|
||||
|
||||
@@ -13,43 +13,46 @@
|
||||
* compile with -DZ_PREFIX. The "standard" zlib should be compiled without it.
|
||||
*/
|
||||
#ifdef Z_PREFIX
|
||||
# define deflateInit_ z_deflateInit_
|
||||
# define deflate z_deflate
|
||||
# define deflateEnd z_deflateEnd
|
||||
# define inflateInit_ z_inflateInit_
|
||||
# define inflate z_inflate
|
||||
# define inflateEnd z_inflateEnd
|
||||
# define deflateInit2_ z_deflateInit2_
|
||||
# define deflateSetDictionary z_deflateSetDictionary
|
||||
# define deflateCopy z_deflateCopy
|
||||
# define deflateReset z_deflateReset
|
||||
# define deflatePrime z_deflatePrime
|
||||
# define deflateParams z_deflateParams
|
||||
# define deflateBound z_deflateBound
|
||||
# define inflateInit2_ z_inflateInit2_
|
||||
# define inflateSetDictionary z_inflateSetDictionary
|
||||
# define inflateSync z_inflateSync
|
||||
# define inflateSyncPoint z_inflateSyncPoint
|
||||
# define inflateCopy z_inflateCopy
|
||||
# define inflateReset z_inflateReset
|
||||
# define compress z_compress
|
||||
# define compress2 z_compress2
|
||||
# define compressBound z_compressBound
|
||||
# define uncompress z_uncompress
|
||||
# define adler32 z_adler32
|
||||
# define crc32 z_crc32
|
||||
# define get_crc_table z_get_crc_table
|
||||
# define deflateInit_ z_deflateInit_
|
||||
# define deflate z_deflate
|
||||
# define deflateEnd z_deflateEnd
|
||||
# define inflateInit_ z_inflateInit_
|
||||
# define inflate z_inflate
|
||||
# define inflateEnd z_inflateEnd
|
||||
# define deflateInit2_ z_deflateInit2_
|
||||
# define deflateSetDictionary z_deflateSetDictionary
|
||||
# define deflateCopy z_deflateCopy
|
||||
# define deflateReset z_deflateReset
|
||||
# define deflateParams z_deflateParams
|
||||
# define deflateBound z_deflateBound
|
||||
# define deflatePrime z_deflatePrime
|
||||
# define inflateInit2_ z_inflateInit2_
|
||||
# define inflateSetDictionary z_inflateSetDictionary
|
||||
# define inflateSync z_inflateSync
|
||||
# define inflateSyncPoint z_inflateSyncPoint
|
||||
# define inflateCopy z_inflateCopy
|
||||
# define inflateReset z_inflateReset
|
||||
# define inflateBack z_inflateBack
|
||||
# define inflateBackEnd z_inflateBackEnd
|
||||
# define compress z_compress
|
||||
# define compress2 z_compress2
|
||||
# define compressBound z_compressBound
|
||||
# define uncompress z_uncompress
|
||||
# define adler32 z_adler32
|
||||
# define crc32 z_crc32
|
||||
# define get_crc_table z_get_crc_table
|
||||
# define zError z_zError
|
||||
|
||||
# define Byte z_Byte
|
||||
# define uInt z_uInt
|
||||
# define uLong z_uLong
|
||||
# define Bytef z_Bytef
|
||||
# define charf z_charf
|
||||
# define intf z_intf
|
||||
# define uIntf z_uIntf
|
||||
# define uLongf z_uLongf
|
||||
# define voidpf z_voidpf
|
||||
# define voidp z_voidp
|
||||
# define Byte z_Byte
|
||||
# define uInt z_uInt
|
||||
# define uLong z_uLong
|
||||
# define Bytef z_Bytef
|
||||
# define charf z_charf
|
||||
# define intf z_intf
|
||||
# define uIntf z_uIntf
|
||||
# define uLongf z_uLongf
|
||||
# define voidpf z_voidpf
|
||||
# define voidp z_voidp
|
||||
#endif
|
||||
|
||||
#if defined(__MSDOS__) && !defined(MSDOS)
|
||||
@@ -281,7 +284,7 @@ typedef uLong FAR uLongf;
|
||||
# ifdef VMS
|
||||
# include <unixio.h> /* for off_t */
|
||||
# endif
|
||||
# define z_off_t off_t
|
||||
# define z_off_t off_t
|
||||
#endif
|
||||
#ifndef SEEK_SET
|
||||
# define SEEK_SET 0 /* Seek from beginning of file. */
|
||||
@@ -289,11 +292,11 @@ typedef uLong FAR uLongf;
|
||||
# define SEEK_END 2 /* Set file pointer to EOF plus "offset" */
|
||||
#endif
|
||||
#ifndef z_off_t
|
||||
# define z_off_t long
|
||||
# define z_off_t long
|
||||
#endif
|
||||
|
||||
#if defined(__OS400__)
|
||||
#define NO_vsnprintf
|
||||
# define NO_vsnprintf
|
||||
#endif
|
||||
|
||||
#if defined(__MVS__)
|
||||
|
||||
@@ -1,4 +1,4 @@
|
||||
.TH ZLIB 3 "17 November 2003"
|
||||
.TH ZLIB 3 "3 October 2004"
|
||||
.SH NAME
|
||||
zlib \- compression/decompression library
|
||||
.SH SYNOPSIS
|
||||
@@ -133,8 +133,8 @@ before asking for help.
|
||||
Send questions and/or comments to zlib@gzip.org,
|
||||
or (for the Windows DLL version) to Gilles Vollant (info@winimage.com).
|
||||
.SH AUTHORS
|
||||
Version 1.2.1
|
||||
Copyright (C) 1995-2003 Jean-loup Gailly (jloup@gzip.org)
|
||||
Version 1.2.2
|
||||
Copyright (C) 1995-2004 Jean-loup Gailly (jloup@gzip.org)
|
||||
and Mark Adler (madler@alumni.caltech.edu).
|
||||
.LP
|
||||
This software is provided "as-is,"
|
||||
|
||||
@@ -1,7 +1,7 @@
|
||||
/* zlib.h -- interface of the 'zlib' general purpose compression library
|
||||
version 1.2.1, November 17th, 2003
|
||||
version 1.2.2, October 3rd, 2004
|
||||
|
||||
Copyright (C) 1995-2003 Jean-loup Gailly and Mark Adler
|
||||
Copyright (C) 1995-2004 Jean-loup Gailly and Mark Adler
|
||||
|
||||
This software is provided 'as-is', without any express or implied
|
||||
warranty. In no event will the authors be held liable for any damages
|
||||
@@ -37,8 +37,8 @@
|
||||
extern "C" {
|
||||
#endif
|
||||
|
||||
#define ZLIB_VERSION "1.2.1"
|
||||
#define ZLIB_VERNUM 0x1210
|
||||
#define ZLIB_VERSION "1.2.2"
|
||||
#define ZLIB_VERNUM 0x1220
|
||||
|
||||
/*
|
||||
The 'zlib' compression library provides in-memory compression and
|
||||
@@ -53,24 +53,22 @@ extern "C" {
|
||||
application must provide more input and/or consume the output
|
||||
(providing more output space) before each call.
|
||||
|
||||
The compressed data format used by the in-memory functions is the zlib
|
||||
format, which is a zlib wrapper documented in RFC 1950, wrapped around a
|
||||
deflate stream, which is itself documented in RFC 1951.
|
||||
The compressed data format used by default by the in-memory functions is
|
||||
the zlib format, which is a zlib wrapper documented in RFC 1950, wrapped
|
||||
around a deflate stream, which is itself documented in RFC 1951.
|
||||
|
||||
The library also supports reading and writing files in gzip (.gz) format
|
||||
with an interface similar to that of stdio using the functions that start
|
||||
with "gz". The gzip format is different from the zlib format. gzip is a
|
||||
gzip wrapper, documented in RFC 1952, wrapped around a deflate stream.
|
||||
|
||||
This library can optionally read and write gzip streams in memory as well.
|
||||
|
||||
The zlib format was designed to be compact and fast for use in memory
|
||||
and on communications channels. The gzip format was designed for single-
|
||||
file compression on file systems, has a larger header than zlib to maintain
|
||||
directory information, and uses a different, slower check method than zlib.
|
||||
|
||||
This library does not provide any functions to write gzip files in memory.
|
||||
However such functions could be easily written using zlib's deflate function,
|
||||
the documentation in the gzip RFC, and the examples in gzio.c.
|
||||
|
||||
The library does not install any signal handler. The decoder checks
|
||||
the consistency of the compressed data, so the library should never
|
||||
crash even in case of corrupted input.
|
||||
@@ -401,7 +399,7 @@ ZEXTERN int ZEXPORT inflate OF((z_streamp strm, int flush));
|
||||
because Z_BLOCK is used.
|
||||
|
||||
If a preset dictionary is needed after this call (see inflateSetDictionary
|
||||
below), inflate sets strm-adler to the adler32 checksum of the dictionary
|
||||
below), inflate sets strm->adler to the adler32 checksum of the dictionary
|
||||
chosen by the compressor and returns Z_NEED_DICT; otherwise it sets
|
||||
strm->adler to the adler32 checksum of all output produced so far (that is,
|
||||
total_out bytes) and returns Z_OK, Z_STREAM_END or an error code as described
|
||||
@@ -478,7 +476,8 @@ ZEXTERN int ZEXPORT deflateInit2 OF((z_streamp strm,
|
||||
16 to windowBits to write a simple gzip header and trailer around the
|
||||
compressed data instead of a zlib wrapper. The gzip header will have no
|
||||
file name, no extra data, no comment, no modification time (set to zero),
|
||||
no header crc, and the operating system will be set to 255 (unknown).
|
||||
no header crc, and the operating system will be set to 255 (unknown). If a
|
||||
gzip stream is being written, strm->adler is a crc32 instead of an adler32.
|
||||
|
||||
The memLevel parameter specifies how much memory should be allocated
|
||||
for the internal compression state. memLevel=1 uses minimum memory but
|
||||
@@ -649,7 +648,8 @@ ZEXTERN int ZEXPORT inflateInit2 OF((z_streamp strm,
|
||||
windowBits can also be greater than 15 for optional gzip decoding. Add
|
||||
32 to windowBits to enable zlib and gzip decoding with automatic header
|
||||
detection, or add 16 to decode only the gzip format (the zlib format will
|
||||
return a Z_DATA_ERROR).
|
||||
return a Z_DATA_ERROR. If a gzip stream is being decoded, strm->adler is
|
||||
a crc32 instead of an adler32.
|
||||
|
||||
inflateInit2 returns Z_OK if success, Z_MEM_ERROR if there was not enough
|
||||
memory, Z_STREAM_ERROR if a parameter is invalid (such as a negative
|
||||
@@ -1189,7 +1189,7 @@ ZEXTERN int ZEXPORT inflateBackInit_ OF((z_stream FAR *strm, int windowBits,
|
||||
struct internal_state {int dummy;}; /* hack for buggy compilers */
|
||||
#endif
|
||||
|
||||
ZEXTERN const char * ZEXPORT zError OF((int err));
|
||||
ZEXTERN const char * ZEXPORT zError OF((int));
|
||||
ZEXTERN int ZEXPORT inflateSyncPoint OF((z_streamp z));
|
||||
ZEXTERN const uLongf * ZEXPORT get_crc_table OF((void));
|
||||
|
||||
|
||||
@@ -189,9 +189,14 @@ extern const char * const z_errmsg[10]; /* indexed by 2-zlib_error */
|
||||
# define NO_vsnprintf
|
||||
# endif
|
||||
#endif
|
||||
#ifdef VMS
|
||||
# define NO_vsnprintf
|
||||
#endif
|
||||
|
||||
#ifdef HAVE_STRERROR
|
||||
extern char *strerror OF((int));
|
||||
# ifndef VMS
|
||||
extern char *strerror OF((int));
|
||||
# endif
|
||||
# define zstrerror(errnum) strerror(errnum)
|
||||
#else
|
||||
# define zstrerror(errnum) ""
|
||||
|
||||
Reference in New Issue
Block a user