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zlib 1.2.0.1

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Mark Adler 2011-09-09 23:21:57 -07:00
parent 7c2a874e50
commit 13a294f044
71 changed files with 10250 additions and 3923 deletions
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34
ChangeLog
View File

@ -1,5 +1,29 @@
ChangeLog file for zlib
ChangeLog file for zlib
Changes in 1.2.0.1 (17 March 2003)
- Add Z_RLE strategy for run-length encoding [Truta]
- When Z_RLE requested, restrict matches to distance one
- Update zlib.h, minigzip.c, gzopen(), gzdopen() for Z_RLE
- Correct FASTEST compilation to allow level == 0
- Clean up what gets compiled for FASTEST
- Incorporate changes to zconf.in.h [Vollant]
- Refine detection of Turbo C need for dummy returns
- Refine ZLIB_DLL compilation
- Include additional header file on VMS for off_t typedef
- Try to use _vsnprintf where it supplants vsprintf [Vollant]
- Add some casts in inffast.c
- Enchance comments in zlib.h on what happens if the gzprintf() tries to
write more than 4095 bytes before compression
- Remove unused state from inflateBackEnd()
- Remove exit(0) from minigzip.c, example.c
- Get rid of all those darn tabs
- Add "check" target to Makefile.in that does the same thing as "test"
- Add "mostlyclean" and "maintainer-clean" targets to Makefile.in
- Update contrib/inflate86 [Anderson]
- Update contrib/testzlib, contrib/vstudio, contrib/minizip [Vollant]
- Add msdos and win32 directories with makefiles [Truta]
- More additions and improvements to the FAQ
Changes in 1.2.0 (9 March 2003)
- New and improved inflate code
- About 20% faster
@ -236,13 +260,13 @@ Changes in 1.0.6 (19 Jan 1998)
- added Makefile.nt (thanks to Stephen Williams)
- added the unsupported "contrib" directory:
contrib/asm386/ by Gilles Vollant <info@winimage.com>
386 asm code replacing longest_match().
386 asm code replacing longest_match().
contrib/iostream/ by Kevin Ruland <kevin@rodin.wustl.edu>
A C++ I/O streams interface to the zlib gz* functions
contrib/iostream2/ by Tyge Løvset <Tyge.Lovset@cmr.no>
Another C++ I/O streams interface
Another C++ I/O streams interface
contrib/untgz/ by "Pedro A. Aranda Guti\irrez" <paag@tid.es>
A very simple tar.gz file extractor using zlib
A very simple tar.gz file extractor using zlib
contrib/visual-basic.txt by Carlos Rios <c_rios@sonda.cl>
How to use compress(), uncompress() and the gz* functions from VB.
- pass params -f (filtered data), -h (huffman only), -1 to -9 (compression
@ -269,7 +293,7 @@ Changes in 1.0.6 (19 Jan 1998)
- add NEED_DUMMY_RETURN for Borland
- use variable z_verbose for tracing in debug mode (L. Peter Deutsch).
- allow compilation with CC
- defined STDC for OS/2 (David Charlap)
- defined STDC for OS/2 (David Charlap)
- limit external names to 8 chars for MVS (Thomas Lund)
- in minigzip.c, use static buffers only for 16-bit systems
- fix suffix check for "minigzip -d foo.gz"

105
FAQ
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@ -1,5 +1,5 @@
Frequently Asked Questions about zlib
Frequently Asked Questions about zlib
If your question is not there, please check the zlib home page
@ -90,13 +90,14 @@ The lastest zlib FAQ is at http://www.gzip.org/zlib/zlib_faq.html
./configure -s
make
14. Why does "make test" fail on Mac OS X?
14. How do I install a shared zlib library on Unix?
Mac OS X already includes zlib as a shared library, and so -lz links the
shared library instead of the one that the "make" compiled. The two are
incompatible due to different compile-time options. Simply change the -lz
in the Makefile to libz.a, and it will use the compiled library instead
of the shared one and the "make test" will succeed.
make install
However, many flavors of Unix come with a shared zlib already installed.
Before going to the trouble of compiling a shared version of zlib and
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
@ -108,8 +109,8 @@ The lastest zlib FAQ is at http://www.gzip.org/zlib/zlib_faq.html
The compress and deflate functions produce data in the zlib format, which
is different and incompatible with the gzip format. The gz* functions in
zlib on the other hand use the gzip format. Both the zlib and gzip
formats use the same compressed data format, but have different headers
and trailers.
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?
@ -127,12 +128,13 @@ The lastest zlib FAQ is at http://www.gzip.org/zlib/zlib_faq.html
19. Is zlib thread-safe?
Yes. However any library routines that zlib uses and any application-
provided memory allocation routines must also be thread-safe. Of course,
you should only operate on any given zlib or gzip stream from a single
thread. zlib's gz* functions use stdio library routines, and most of
zlib's functions use the library memory allocation routines by default.
zlib's Init functions allow for the application to provide custom memory
allocation routines.
provided memory allocation routines must also be thread-safe. zlib's gz*
functions use stdio library routines, and most of zlib's functions use the
library memory allocation routines by default. zlib's Init functions allow
for the application to provide custom memory allocation routines.
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?
@ -142,24 +144,44 @@ The lastest zlib FAQ is at http://www.gzip.org/zlib/zlib_faq.html
No. Please read the license in zlib.h.
22. Will zlib work on a big-endian or little-endian architecture, and can I
22. 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 append something the ZLIB_VERSION string in zlib.h. For
example, if the version of the base zlib you are altering is "1.2.3", then
you could change the string to "1.2.3-fred-mods-v3". You should not change
it to "1.2.4" or "1.2.3.1" since the zlib authors would like to reserve
those forms of the version for their own use.
For altered source distributions, you should also note the origin and
nature of the changes in zlib.h, as well as in ChangeLog and README, along
with the dates of the alterations. The origin should include at least your
name (or your company's name), and an email address to contact for help or
issues with the library.
Note that distributing a compiled zlib library along with zlib.h and
zconf.h is also a source distribution, and so you should change
ZLIB_VERSION 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
exchange compressed data between them?
Yes and yes.
23. Will zlib work on a 64-bit machine?
24. 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
24. Will zlib decompress data from the PKWare Data Compression Library?
25. 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.
25. Can I access data randomly in a compressed stream?
26. 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,
@ -167,76 +189,83 @@ 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.
26. Does zlib work on MVS, OS/390, CICS, etc.?
27. 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.
27. Is there some simpler, easier to read version of inflate I can look at
28. 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.
28. Does zlib infringe on any patents?
29. 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
29. Can zlib work with greater than 4 GB of data?
30. Can zlib work with greater than 4 GB of data?
Yes. inflate() and deflate() will process any amount of data correctly.
However the strm.total_in and strm_total_out counters may be limited to
4 GB. The user can easily set up their own counters updated after each
4 GB. The application can easily set up its own counters updated after each
call of inflate() or deflate() to count beyond 4 GB. compress() and
uncompress() may be limited to 4 GB, since they operate in a single
call using unsigned long lengths. gzseek() may be limited to 4 GB
uncompress() may be limited to 4 GB, since they operate in a single call
using unsigned long lengths. gzseek() and gztell() may be limited to 4 GB
depending on how zlib is compiled.
30. Does zlib have any security vulnerabilities?
31. 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
against a buffer overflow of a 4K string space, other than the caller of
gzprintf() assuring that the output will not exceed 4K. On the other
hand, if zlib is compiled to use snprintf() or vsnprintf(), then there is
no vulnerability.
hand, if zlib is compiled to use snprintf() or vsnprintf(), which should
normally be the case, then there is no vulnerability. The ./configure
script will display warnings if an insecure variation of sprintf() will
be used by gzprintf().
If you don't have snprintf() or vsnprintf() and would like one, you can
find a portable implementation here:
http://www.ijs.si/software/snprintf/
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.
31. Is there a Java version of zlib?
32. 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 class. 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/
32. I get this or that compiler or source-code scanner warning. Can't you guys
write proper code?
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?
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.
33. Will zlib read the (insert any ancient or arcane format here) compressed
34. 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.
34. How can I encrypt/decrypt zip files with zlib?
35. How can I encrypt/decrypt zip files with zlib?
zlib doesn't support encryption. PKZIP encryption is very weak and can be
broken with freely available programs. To get strong encryption, use gpg
which already includes zlib compression.
35. What's the difference between the "gzip" and "deflate" HTTP 1.1 encodings?
36. 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
@ -250,14 +279,14 @@ The lastest zlib FAQ is at http://www.gzip.org/zlib/zlib_faq.html
for), using the "gzip" transfer encoding is probably more reliable due to
an unfortunate choice of name on the part of the HTTP 1.1 authors.
36. Does zlib support the new "Deflate64" format introduced by PKWare?
37. 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.
37. Can you please sign these lengthy legal documents and fax them back to us
38. 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.
No. Go away.

34
INDEX
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@ -1,22 +1,24 @@
ChangeLog history of changes
FAQ Frequently Asked Questions about zlib
INDEX this file
Makefile makefile for Unix (generated by configure)
Makefile.in makefile for Unix (template for configure)
README guess what
algorithm.txt description of the (de)compression algorithm
configure configure script for Unix
zconf.in.h template for zconf.h (used by configure)
ChangeLog history of changes
FAQ Frequently Asked Questions about zlib
INDEX this file
Makefile makefile for Unix (generated by configure)
Makefile.in makefile for Unix (template for configure)
README guess what
algorithm.txt description of the (de)compression algorithm
configure configure script for Unix
zconf.in.h template for zconf.h (used by configure)
aix/ instructions for building an AIX shared library
old/ makefiles for various architectures and zlib documentation
that has not yet been updated for zlib 1.2.x
aix/ instructions for building an AIX shared library
msdos/ makefiles for MSDOS
old/ makefiles for various architectures and zlib documentation
files that have not yet been updated for zlib 1.2.x
win32/ makefiles for Windows
zlib public header files (must be kept):
zlib public header files (must be kept):
zconf.h
zlib.h
private source files used to build the zlib library:
private source files used to build the zlib library:
adler32.c
compress.c
crc32.c
@ -38,9 +40,9 @@ uncompr.c
zutil.c
zutil.h
source files for sample programs:
source files for sample programs:
example.c
minigzip.c
unsupported contribution by third parties
unsupported contribution by third parties
See contrib/README.contrib

5
Makefile
View File

@ -24,7 +24,7 @@ LDFLAGS=libz.a
LDSHARED=$(CC)
CPP=$(CC) -E
VER=1.2.0
VER=1.2.0.1
LIBS=libz.a
SHAREDLIB=libz.so
@ -61,6 +61,7 @@ DISTFILES = README FAQ INDEX ChangeLog configure Make*[a-z0-9] *.[ch] *.mms \
all: example minigzip
check: test
test: all
@LD_LIBRARY_PATH=.:$(LD_LIBRARY_PATH) ; export LD_LIBRARY_PATH; \
echo hello world | ./minigzip | ./minigzip -d || \
@ -123,10 +124,12 @@ uninstall:
rm -f $(SHAREDLIB).$$v $(SHAREDLIB) $(SHAREDLIB).1; \
fi
mostlyclean: clean
clean:
rm -f *.o *~ example minigzip libz.a libz.so* foo.gz so_locations \
_match.s maketree
maintainer-clean: distclean
distclean: clean
cp -p Makefile.in Makefile
cp -p zconf.in.h zconf.h

5
Makefile.in
View File

@ -24,7 +24,7 @@ LDFLAGS=libz.a
LDSHARED=$(CC)
CPP=$(CC) -E
VER=1.2.0
VER=1.2.0.1
LIBS=libz.a
SHAREDLIB=libz.so
@ -61,6 +61,7 @@ DISTFILES = README FAQ INDEX ChangeLog configure Make*[a-z0-9] *.[ch] *.mms \
all: example minigzip
check: test
test: all
@LD_LIBRARY_PATH=.:$(LD_LIBRARY_PATH) ; export LD_LIBRARY_PATH; \
echo hello world | ./minigzip | ./minigzip -d || \
@ -123,10 +124,12 @@ uninstall:
rm -f $(SHAREDLIB).$$v $(SHAREDLIB) $(SHAREDLIB).1; \
fi
mostlyclean: clean
clean:
rm -f *.o *~ example minigzip libz.a libz.so* foo.gz so_locations \
_match.s maketree
maintainer-clean: distclean
distclean: clean
cp -p Makefile.in Makefile
cp -p zconf.in.h zconf.h

112
README
View File

@ -1,38 +1,40 @@
zlib 1.2.0 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) and rfc1952.txt (gzip format). These documents are also available in
other formats from ftp://ftp.uu.net/graphics/png/documents/zlib/zdoc-index.html
ZLIB DATA COMPRESSION LIBRARY
zlib 1.2.0.1 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)
and rfc1952.txt (gzip format). These documents are also available in other
formats from ftp://ftp.uu.net/graphics/png/documents/zlib/zdoc-index.html
All functions of the compression library are documented in the file zlib.h
(volunteer to write man pages welcome, contact jloup@gzip.org). A usage
example of the library is given in the file example.c which also tests that
the library is working correctly. Another example is given in the file
minigzip.c. The compression library itself is composed of all source files
except example.c and minigzip.c.
(volunteer to write man pages welcome, contact jloup@gzip.org). A usage example
of the library is given in the file example.c which also tests that the library
is working correctly. Another example is given in the file minigzip.c. The
compression library itself is composed of all source files except example.c and
minigzip.c.
To compile all files and run the test program, follow the instructions
given at the top of Makefile. In short "make test; make install"
should work for most machines. For Unix: "./configure; make test; make install"
For MSDOS, use one of the special makefiles such as Makefile.msc.
For VMS, use Make_vms.com or descrip.mms.
To compile all files and run the test program, follow the instructions given at
the top of Makefile. In short "make test; make install" should work for most
machines. For Unix: "./configure; make test; make install" For MSDOS, use one
of the special makefiles such as Makefile.msc. For VMS, use Make_vms.com or
descrip.mms.
Questions about zlib should be sent to <zlib@gzip.org>, or to
Gilles Vollant <info@winimage.com> for the Windows DLL version.
The zlib home page is http://www.zlib.org or http://www.gzip.org/zlib/
Before reporting a problem, please check this site to verify that
you have the latest version of zlib; otherwise get the latest version and
check whether the problem still exists or not.
Questions about zlib should be sent to <zlib@gzip.org>, or to Gilles Vollant
<info@winimage.com> for the Windows DLL version. The zlib home page is
http://www.zlib.org or http://www.gzip.org/zlib/ Before reporting a problem,
please check this site to verify that you have the latest version of zlib;
otherwise get the latest version and check whether the problem still exists or
not.
PLEASE read the zlib FAQ http://www.gzip.org/zlib/zlib_faq.html
before asking for help.
PLEASE read the zlib FAQ http://www.gzip.org/zlib/zlib_faq.html before asking
for help.
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 1.2.0 are documented in the file ChangeLog.
The changes made in version 1.2.0.1 are documented in the file ChangeLog.
Unsupported third party contributions are provided in directory "contrib".
@ -40,56 +42,56 @@ A Java implementation of zlib is available in the Java Development Kit
http://www.javasoft.com/products/JDK/1.1/docs/api/Package-java.util.zip.html
See the zlib home page http://www.zlib.org for details.
A Perl interface to zlib written by Paul Marquess <pmqs@cpan.org>
is in the CPAN (Comprehensive Perl Archive Network) sites
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 available in Python 1.5 and later versions, see
A Python interface to zlib written by A.M. Kuchling <amk@magnet.com> is
available in Python 1.5 and later versions, see
http://www.python.org/doc/lib/module-zlib.html
A zlib binding for TCL written by Andreas Kupries <a.kupries@westend.com>
is availlable at http://www.westend.com/~kupries/doc/trf/man/man.html
A zlib binding for TCL written by Andreas Kupries <a.kupries@westend.com> is
availlable at http://www.westend.com/~kupries/doc/trf/man/man.html
An experimental package to read and write files in .zip format,
written on top of zlib by Gilles Vollant <info@winimage.com>, is
available at http://www.winimage.com/zLibDll/unzip.html
and also in the contrib/minizip directory of zlib.
An experimental package to read and write files in .zip format, written on top
of zlib by Gilles Vollant <info@winimage.com>, is available at
http://www.winimage.com/zLibDll/unzip.html and also in the contrib/minizip
directory of zlib.
Notes for some targets:
- To build a Windows DLL version, include in a DLL project zlib.def, zlib.rc
and all .c files except example.c and minigzip.c; compile with -DZLIB_DLL
The zlib DLL support was initially done by Alessandro Iacopetti and is
now maintained by Gilles Vollant <info@winimage.com>. Check the zlib DLL
home page at http://www.winimage.com/zLibDll
and all .c files except example.c and minigzip.c; compile with -DZLIB_DLL The
zlib DLL support was initially done by Alessandro Iacopetti and is now
maintained by Gilles Vollant <info@winimage.com>. Check the zlib DLL home
page at http://www.winimage.com/zLibDll
From Visual Basic, you can call the DLL functions which do not take
a structure as argument: compress, uncompress and all gz* functions.
See contrib/visual-basic.txt for more information, or get
From Visual Basic, you can call the DLL functions which do not take a
structure as argument: compress, uncompress and all gz* functions. See
contrib/visual-basic.txt for more information, or get
http://www.tcfb.com/dowseware/cmp-z-it.zip
- For 64-bit Irix, deflate.c must be compiled without any optimization.
With -O, one libpng test fails. The test works in 32 bit mode (with
the -n32 compiler flag). The compiler bug has been reported to SGI.
- For 64-bit Irix, deflate.c must be compiled without any optimization. With
-O, one libpng test fails. The test works in 32 bit mode (with the -n32
compiler flag). The compiler bug has been reported to SGI.
- zlib doesn't work with gcc 2.6.3 on a DEC 3000/300LX under OSF/1 2.1
it works when compiled with cc.
- zlib doesn't work with gcc 2.6.3 on a DEC 3000/300LX under OSF/1 2.1 it works
when compiled with cc.
- on Digital Unix 4.0D (formely OSF/1) on AlphaServer, the cc option -std1
is necessary to get gzprintf working correctly. This is done by configure.
- On Digital Unix 4.0D (formely OSF/1) on AlphaServer, the cc option -std1 is
necessary to get gzprintf working correctly. This is done by configure.
- zlib doesn't work on HP-UX 9.05 with some versions of /bin/cc. It works
with other compilers. Use "make test" to check your compiler.
- zlib doesn't work on HP-UX 9.05 with some versions of /bin/cc. It works with
other compilers. Use "make test" to check your compiler.
- gzdopen is not supported on RISCOS, BEOS and by some Mac compilers.
- For Turbo C the small model is supported only with reduced performance to
avoid any far allocation; it was tested with -DMAX_WBITS=11 -DMAX_MEM_LEVEL=3
- For PalmOs, see http://www.cs.uit.no/~perm/PASTA/pilot/software.html
Per Harald Myrvang <perm@stud.cs.uit.no>
- For PalmOs, see http://www.cs.uit.no/~perm/PASTA/pilot/software.html Per
Harald Myrvang <perm@stud.cs.uit.no>
Acknowledgments:
@ -129,4 +131,6 @@ entirely written by Jean-loup Gailly and Mark Adler; it does not
include third-party code.
If you redistribute modified sources, we would appreciate that you include
in the file ChangeLog history information documenting your changes.
in the file ChangeLog history information documenting your changes. Please
read the FAQ for more information on the distribution of modified source
versions.

4
adler32.c
View File

@ -34,12 +34,12 @@ uLong ZEXPORT adler32(adler, buf, len)
len -= k;
while (k >= 16) {
DO16(buf);
buf += 16;
buf += 16;
k -= 16;
}
if (k != 0) do {
s1 += *buf++;
s2 += s1;
s2 += s1;
} while (--k);
s1 %= BASE;
s2 %= BASE;

9
contrib/README.contrib
View File

@ -12,7 +12,7 @@ asm586/ and asm686/ by Brian Raiter <breadbox@muppetlabs.com>
See http://www.muppetlabs.com/~breadbox/software/assembly.html
blast/ by Mark Adler <madler@alumni.caltech.edu>
Decompressor for output of PKWare Data Compression Library
Decompressor for output of PKWare Data Compression Library (DCL)
delphi/ by Bob Dellaca <bobdl@xtra.co.nz>
Support for Delphi
@ -33,8 +33,15 @@ iostream/ by Kevin Ruland <kevin@rodin.wustl.edu>
iostream2/ by Tyge Løvset <Tyge.Lovset@cmr.no>
Another C++ I/O streams interface
testzlib/ by Gilles Vollant <info@winimage.com>
Example of the use of zlib
untgz/ by "Pedro A. Aranda Guti\irrez" <paag@tid.es>
A very simple tar.gz file extractor using zlib
visual-basic.txt by Carlos Rios <c_rios@sonda.cl>
How to use compress(), uncompress() and the gz* functions from VB.
vstudio/ by Gilles Vollant <info@winimage.com>
Building zlib DLL with Visual Studio .NET
Includes x86 inffast.asm for MASM

783
contrib/inflate86/inffas86.c Normal file
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/* inffas86.c is a hand tuned assembler version of
*
* inffast.c -- fast decoding
* Copyright (C) 1995-2003 Mark Adler
* For conditions of distribution and use, see copyright notice in zlib.h
*
* Copyright (C) 2003 Chris Anderson <christop@charm.net>
* Please use the copyright conditions above.
*
* Mar-13-2003 -- Most of this is derived from inffast.S which is derived from
* the gcc -S output of zlib-1.2.0/inffast.c. Zlib-1.2.0 is in beta release at
* the moment. I have successfully compiled and tested this code with gcc2.96,
* gcc3.2, icc5.0, msvc6.0. It is very close to the speed of inffast.S
* compiled with gcc -DNO_MMX, but inffast.S is still faster on the P3 with MMX
* enabled. I will attempt to merge the MMX code into this version. Newer
* versions of this and inffast.S can be found at
* http://www.eetbeetee.com/zlib/ and http://www.charm.net/~christop/zlib/
*/
#include "zutil.h"
#include "inftrees.h"
#include "inflate.h"
#include "inffast.h"
/* Mark Adler's comments from inffast.c: */
/*
Decode literal, length, and distance codes and write out the resulting
literal and match bytes until either not enough input or output is
available, an end-of-block is encountered, or a data error is encountered.
When large enough input and output buffers are supplied to inflate(), for
example, a 16K input buffer and a 64K output buffer, more than 95% of the
inflate execution time is spent in this routine.
Entry assumptions:
state->mode == LEN
strm->avail_in >= 6
strm->avail_out >= 258
start >= strm->avail_out
state->bits < 8
On return, state->mode is one of:
LEN -- ran out of enough output space or enough available input
TYPE -- reached end of block code, inflate() to interpret next block
BAD -- error in block data
Notes:
- The maximum input bits used by a length/distance pair is 15 bits for the
length code, 5 bits for the length extra, 15 bits for the distance code,
and 13 bits for the distance extra. This totals 48 bits, or six bytes.
Therefore if strm->avail_in >= 6, then there is enough input to avoid
checking for available input while decoding.
- The maximum bytes that a single length/distance pair can output is 258
bytes, which is the maximum length that can be coded. inflate_fast()
requires strm->avail_out >= 258 for each loop to avoid checking for
output space.
*/
void inflate_fast(strm, start)
z_streamp strm;
unsigned start; /* inflate()'s starting value for strm->avail_out */
{
struct inflate_state FAR *state;
struct inffast_ar {
void *esp; /* esp save */
unsigned char FAR *in; /* local strm->next_in */
unsigned char FAR *last; /* while in < last, enough input available */
unsigned char FAR *out; /* local strm->next_out */
unsigned char FAR *beg; /* inflate()'s initial strm->next_out */
unsigned char FAR *end; /* while out < end, enough space available */
unsigned wsize; /* window size or zero if not using window */
unsigned write; /* window write index */
unsigned char FAR *window; /* allocated sliding window, if wsize != 0 */
unsigned long hold; /* local strm->hold */
unsigned bits; /* local strm->bits */
code const FAR *lcode; /* local strm->lencode */
code const FAR *dcode; /* local strm->distcode */
unsigned lmask; /* mask for first level of length codes */
unsigned dmask; /* mask for first level of distance codes */
unsigned len; /* match length, unused bytes */
unsigned dist; /* match distance */
unsigned status; /* this is set when state changes */
} ar;
/* copy state to local variables */
state = (struct inflate_state FAR *)strm->state;
ar.in = strm->next_in;
ar.last = ar.in + (strm->avail_in - 5);
ar.out = strm->next_out;
ar.beg = ar.out - (start - strm->avail_out);
ar.end = ar.out + (strm->avail_out - 257);
ar.wsize = state->wsize;
ar.write = state->write;
ar.window = state->window;
ar.hold = state->hold;
ar.bits = state->bits;
ar.lcode = state->lencode;
ar.dcode = state->distcode;
ar.lmask = (1U << state->lenbits) - 1;
ar.dmask = (1U << state->distbits) - 1;
/* decode literals and length/distances until end-of-block or not enough
input data or output space */
/* align in on 2 byte boundary */
if (((unsigned long)(void *)ar.in & 0x1) != 0) {
ar.hold += (unsigned long)*ar.in++ << ar.bits;
ar.bits += 8;
}
#if defined( __GNUC__ ) || defined( __ICC )
__asm__ __volatile__ (
" leal %0, %%eax\n"
" pushf\n"
" pushl %%ebp\n"
" movl %%esp, (%%eax)\n"
" movl %%eax, %%esp\n"
" movl 4(%%esp), %%esi\n" /* esi = in */
" movl 12(%%esp), %%edi\n" /* edi = out */
" movl 36(%%esp), %%edx\n" /* edx = hold */
" movl 40(%%esp), %%ebx\n" /* ebx = bits */
" movl 44(%%esp), %%ebp\n" /* ebp = lcode */
" cld\n"
" jmp .L_do_loop\n"
".L_while_test:\n"
" cmpl %%edi, 20(%%esp)\n"
" jbe .L_break_loop\n"
" cmpl %%esi, 8(%%esp)\n"
" jbe .L_break_loop\n"
".L_do_loop:\n"
" cmpb $15, %%bl\n"
" ja .L_get_length_code\n" /* if (15 < bits) */
" xorl %%eax, %%eax\n"
" lodsw\n" /* al = *(ushort *)in++ */
" movb %%bl, %%cl\n" /* cl = bits, needs it for shifting */
" addb $16, %%bl\n" /* bits += 16 */
" shll %%cl, %%eax\n"
" orl %%eax, %%edx\n" /* hold |= *((ushort *)in)++ << bits */
".L_get_length_code:\n"
" movl 52(%%esp), %%eax\n" /* eax = lmask */
" andl %%edx, %%eax\n" /* eax &= hold */
" movl (%%ebp,%%eax,4), %%eax\n" /* eax = lcode[hold & lmask] */
".L_dolen:\n"
" movb %%ah, %%cl\n" /* cl = this.bits */
" subb %%ah, %%bl\n" /* bits -= this.bits */
" shrl %%cl, %%edx\n" /* hold >>= this.bits */
" testb %%al, %%al\n"
" jnz .L_test_for_length_base\n" /* if (op != 0) 45.7% */
" shrl $16, %%eax\n" /* output this.val char */
" stosb\n"
" jmp .L_while_test\n"
".L_test_for_length_base:\n"
" movl %%eax, %%ecx\n" /* len = this */
" shrl $16, %%ecx\n" /* len = this.val */
" movl %%ecx, 60(%%esp)\n" /* len = this */
" movb %%al, %%cl\n"
" testb $16, %%al\n"
" jz .L_test_for_second_level_length\n" /* if ((op & 16) == 0) 8% */
" andb $15, %%cl\n" /* op &= 15 */
" jz .L_decode_distance\n" /* if (!op) */
" cmpb %%cl, %%bl\n"
" jae .L_add_bits_to_len\n" /* if (op <= bits) */
" movb %%cl, %%ch\n" /* stash op in ch, freeing cl */
" xorl %%eax, %%eax\n"
" lodsw\n" /* al = *(ushort *)in++ */
" movb %%bl, %%cl\n" /* cl = bits, needs it for shifting */
" addb $16, %%bl\n" /* bits += 16 */
" shll %%cl, %%eax\n"
" orl %%eax, %%edx\n" /* hold |= *((ushort *)in)++ << bits */
" movb %%ch, %%cl\n" /* move op back to ecx */
".L_add_bits_to_len:\n"
" movl $1, %%eax\n"
" shll %%cl, %%eax\n"
" decl %%eax\n"
" subb %%cl, %%bl\n"
" andl %%edx, %%eax\n" /* eax &= hold */
" shrl %%cl, %%edx\n"
" addl %%eax, 60(%%esp)\n" /* len += hold & mask[op] */
".L_decode_distance:\n"
" cmpb $15, %%bl\n"
" ja .L_get_distance_code\n" /* if (15 < bits) */
" xorl %%eax, %%eax\n"
" lodsw\n" /* al = *(ushort *)in++ */
" movb %%bl, %%cl\n" /* cl = bits, needs it for shifting */
" addb $16, %%bl\n" /* bits += 16 */
" shll %%cl, %%eax\n"
" orl %%eax, %%edx\n" /* hold |= *((ushort *)in)++ << bits */
".L_get_distance_code:\n"
" movl 56(%%esp), %%eax\n" /* eax = dmask */
" movl 48(%%esp), %%ecx\n" /* ecx = dcode */
" andl %%edx, %%eax\n" /* eax &= hold */
" movl (%%ecx,%%eax,4), %%eax\n"/* eax = dcode[hold & dmask] */
".L_dodist:\n"
" movl %%eax, %%ebp\n" /* dist = this */
" shrl $16, %%ebp\n" /* dist = this.val */
" movb %%ah, %%cl\n"
" subb %%ah, %%bl\n" /* bits -= this.bits */
" shrl %%cl, %%edx\n" /* hold >>= this.bits */
" movb %%al, %%cl\n" /* cl = this.op */
" testb $16, %%al\n" /* if ((op & 16) == 0) */
" jz .L_test_for_second_level_dist\n"
" andb $15, %%cl\n" /* op &= 15 */
" jz .L_check_dist_one\n"
" cmpb %%cl, %%bl\n"
" jae .L_add_bits_to_dist\n" /* if (op <= bits) 97.6% */
" movb %%cl, %%ch\n" /* stash op in ch, freeing cl */
" xorl %%eax, %%eax\n"
" lodsw\n" /* al = *(ushort *)in++ */
" movb %%bl, %%cl\n" /* cl = bits, needs it for shifting */
" addb $16, %%bl\n" /* bits += 16 */
" shll %%cl, %%eax\n"
" orl %%eax, %%edx\n" /* hold |= *((ushort *)in)++ << bits */
" movb %%ch, %%cl\n" /* move op back to ecx */
".L_add_bits_to_dist:\n"
" movl $1, %%eax\n"
" shll %%cl, %%eax\n"
" decl %%eax\n" /* (1 << op) - 1 */
" subb %%cl, %%bl\n"
" andl %%edx, %%eax\n" /* eax &= hold */
" shrl %%cl, %%edx\n"
" addl %%eax, %%ebp\n" /* dist += hold & ((1 << op) - 1) */
".L_check_window:\n"
" movl %%esi, 4(%%esp)\n" /* save in so from can use it's reg */
" movl %%edi, %%eax\n"
" subl 16(%%esp), %%eax\n" /* nbytes = out - beg */
" cmpl %%ebp, %%eax\n"
" jb .L_clip_window\n" /* if (dist > nbytes) 4.2% */
" movl 60(%%esp), %%ecx\n"
" movl %%edi, %%esi\n"
" subl %%ebp, %%esi\n" /* from = out - dist */
" subl $3, %%ecx\n" /* copy from to out */
" movb (%%esi), %%al\n"
" movb %%al, (%%edi)\n"
" movb 1(%%esi), %%al\n"
" movb 2(%%esi), %%ah\n"
" addl $3, %%esi\n"
" movb %%al, 1(%%edi)\n"
" movb %%ah, 2(%%edi)\n"
" addl $3, %%edi\n"
" rep movsb\n"
" movl 4(%%esp), %%esi\n" /* move in back to %esi, toss from */
" movl 44(%%esp), %%ebp\n" /* ebp = lcode */
" jmp .L_while_test\n"
".L_check_dist_one:\n"
" cmpl $1, %%ebp\n" /* if dist 1, is a memset */
" jne .L_check_window\n"
" cmpl %%edi, 16(%%esp)\n"
" je .L_check_window\n"
" decl %%edi\n"
" movl 60(%%esp), %%ecx\n"
" movb (%%edi), %%al\n"
" subl $3, %%ecx\n"
" movb %%al, 1(%%edi)\n" /* memset out with from[-1] */
" movb %%al, 2(%%edi)\n"
" movb %%al, 3(%%edi)\n"
" addl $4, %%edi\n"
" rep stosb\n"
" movl 44(%%esp), %%ebp\n" /* ebp = lcode */
" jmp .L_while_test\n"
".L_test_for_second_level_length:\n"
" testb $64, %%al\n"
" jnz .L_test_for_end_of_block\n" /* if ((op & 64) != 0) */
" movl $1, %%eax\n"
" shll %%cl, %%eax\n"
" decl %%eax\n"
" andl %%edx, %%eax\n" /* eax &= hold */
" addl 60(%%esp), %%eax\n" /* eax += this.val */
" movl (%%ebp,%%eax,4), %%eax\n" /* eax = lcode[val+(hold&mask[op])]*/
" jmp .L_dolen\n"
".L_test_for_second_level_dist:\n"
" testb $64, %%al\n"
" jnz .L_invalid_distance_code\n" /* if ((op & 64) != 0) */
" movl $1, %%eax\n"
" shll %%cl, %%eax\n"
" decl %%eax\n"
" andl %%edx, %%eax\n" /* eax &= hold */
" addl %%ebp, %%eax\n" /* eax += this.val */
" movl 48(%%esp), %%ecx\n" /* ecx = dcode */
" movl (%%ecx,%%eax,4), %%eax\n" /* eax = dcode[val+(hold&mask[op])]*/
" jmp .L_dodist\n"
".L_clip_window:\n"
" movl %%eax, %%ecx\n"
" movl 24(%%esp), %%eax\n" /* prepare for dist compare */
" negl %%ecx\n" /* nbytes = -nbytes */
" movl 32(%%esp), %%esi\n" /* from = window */
" cmpl %%ebp, %%eax\n"
" jb .L_invalid_distance_too_far\n" /* if (dist > wsize) */
" addl %%ebp, %%ecx\n" /* nbytes = dist - nbytes */
" cmpl $0, 28(%%esp)\n"
" jne .L_wrap_around_window\n" /* if (write != 0) */
" subl %%ecx, %%eax\n"
" addl %%eax, %%esi\n" /* from += wsize - nbytes */
" movl 60(%%esp), %%eax\n"
" cmpl %%ecx, %%eax\n"
" jbe .L_do_copy1\n" /* if (nbytes >= len) */
" subl %%ecx, %%eax\n" /* len -= nbytes */
" rep movsb\n"
" movl %%edi, %%esi\n"
" subl %%ebp, %%esi\n" /* from = out - dist */
" jmp .L_do_copy1\n"
" cmpl %%ecx, %%eax\n"
" jbe .L_do_copy1\n" /* if (nbytes >= len) */
" subl %%ecx, %%eax\n" /* len -= nbytes */
" rep movsb\n"
" movl %%edi, %%esi\n"
" subl %%ebp, %%esi\n" /* from = out - dist */
" jmp .L_do_copy1\n"
".L_wrap_around_window:\n"
" movl 28(%%esp), %%eax\n"
" cmpl %%eax, %%ecx\n"
" jbe .L_contiguous_in_window\n" /* if (write >= nbytes) */
" addl 24(%%esp), %%esi\n"
" addl %%eax, %%esi\n"
" subl %%ecx, %%esi\n" /* from += wsize + write - nbytes */
" subl %%eax, %%ecx\n" /* nbytes -= write */
" movl 60(%%esp), %%eax\n"
" cmpl %%ecx, %%eax\n"
" jbe .L_do_copy1\n" /* if (nbytes >= len) */
" subl %%ecx, %%eax\n" /* len -= nbytes */
" rep movsb\n"
" movl 32(%%esp), %%esi\n" /* from = window */
" movl 28(%%esp), %%ecx\n" /* nbytes = write */
" cmpl %%ecx, %%eax\n"
" jbe .L_do_copy1\n" /* if (nbytes >= len) */
" subl %%ecx, %%eax\n" /* len -= nbytes */
" rep movsb\n"
" movl %%edi, %%esi\n"
" subl %%ebp, %%esi\n" /* from = out - dist */
" jmp .L_do_copy1\n"
".L_contiguous_in_window:\n"
" addl %%eax, %%esi\n"
" subl %%ecx, %%esi\n" /* from += write - nbytes */
" movl 60(%%esp), %%eax\n"
" cmpl %%ecx, %%eax\n"
" jbe .L_do_copy1\n" /* if (nbytes >= len) */
" subl %%ecx, %%eax\n" /* len -= nbytes */
" rep movsb\n"
" movl %%edi, %%esi\n"
" subl %%ebp, %%esi\n" /* from = out - dist */
".L_do_copy1:\n"
" movl %%eax, %%ecx\n"
" rep movsb\n"
" movl 4(%%esp), %%esi\n" /* move in back to %esi, toss from */
" movl 44(%%esp), %%ebp\n" /* ebp = lcode */
" jmp .L_while_test\n"
".L_test_for_end_of_block:\n"
" testb $32, %%al\n"
" jz .L_invalid_literal_length_code\n"
" movl $1, 68(%%esp)\n"
" jmp .L_break_loop_with_status\n"
".L_invalid_literal_length_code:\n"
" movl $2, 68(%%esp)\n"
" jmp .L_break_loop_with_status\n"
".L_invalid_distance_code:\n"
" movl $3, 68(%%esp)\n"
" jmp .L_break_loop_with_status\n"
".L_invalid_distance_too_far:\n"
" movl 4(%%esp), %%esi\n"
" movl $4, 68(%%esp)\n"
" jmp .L_break_loop_with_status\n"
".L_break_loop:\n"
" movl $0, 68(%%esp)\n"
".L_break_loop_with_status:\n"
/* put in, out, bits, and hold back into ar and pop esp */
" movl %%esi, 4(%%esp)\n"
" movl %%edi, 12(%%esp)\n"
" movl %%ebx, 40(%%esp)\n"
" movl %%edx, 36(%%esp)\n"
" movl (%%esp), %%esp\n"
" popl %%ebp\n"
" popf\n"
:
: "m" (ar)
: "memory", "%eax", "%ebx", "%ecx", "%edx", "%esi", "%edi"
);
#elif defined( _MSC_VER )
__asm {
lea eax, ar
pushfd
push ebp
mov [eax], esp
mov esp, eax
mov esi, [esp+4] /* esi = in */
mov edi, [esp+12] /* edi = out */
mov edx, [esp+36] /* edx = hold */
mov ebx, [esp+40] /* ebx = bits */
mov ebp, [esp+44] /* ebp = lcode */
cld
jmp L_do_loop
L_while_test:
cmp [esp+20], edi
jbe L_break_loop
cmp [esp+8], esi
jbe L_break_loop
L_do_loop:
cmp bl, 15
ja L_get_length_code /* if (15 < bits) */
xor eax, eax
lodsw /* al = *(ushort *)in++ */
mov cl, bl /* cl = bits, needs it for shifting */
add bl, 16 /* bits += 16 */
shl eax, cl
or edx, eax /* hold |= *((ushort *)in)++ << bits */
L_get_length_code:
mov eax, [esp+52] /* eax = lmask */
and eax, edx /* eax &= hold */
mov eax, [ebp+eax*4] /* eax = lcode[hold & lmask] */
L_dolen:
mov cl, ah /* cl = this.bits */
sub bl, ah /* bits -= this.bits */
shr edx, cl /* hold >>= this.bits */
test al, al
jnz L_test_for_length_base /* if (op != 0) 45.7% */
shr eax, 16 /* output this.val char */
stosb
jmp L_while_test
L_test_for_length_base:
mov ecx, eax /* len = this */
shr ecx, 16 /* len = this.val */
mov [esp+60], ecx /* len = this */
mov cl, al
test al, 16
jz L_test_for_second_level_length /* if ((op & 16) == 0) 8% */
and cl, 15 /* op &= 15 */
jz L_decode_distance /* if (!op) */
cmp bl, cl
jae L_add_bits_to_len /* if (op <= bits) */
mov ch, cl /* stash op in ch, freeing cl */
xor eax, eax
lodsw /* al = *(ushort *)in++ */
mov cl, bl /* cl = bits, needs it for shifting */
add bl, 16 /* bits += 16 */
shl eax, cl
or edx, eax /* hold |= *((ushort *)in)++ << bits */
mov cl, ch /* move op back to ecx */
L_add_bits_to_len:
mov eax, 1
shl eax, cl
dec eax
sub bl, cl
and eax, edx /* eax &= hold */
shr edx, cl
add [esp+60], eax /* len += hold & mask[op] */
L_decode_distance:
cmp bl, 15
ja L_get_distance_code /* if (15 < bits) */
xor eax, eax
lodsw /* al = *(ushort *)in++ */
mov cl, bl /* cl = bits, needs it for shifting */
add bl, 16 /* bits += 16 */
shl eax, cl
or edx, eax /* hold |= *((ushort *)in)++ << bits */
L_get_distance_code:
mov eax, [esp+56] /* eax = dmask */
mov ecx, [esp+48] /* ecx = dcode */
and eax, edx /* eax &= hold */
mov eax, [ecx+eax*4]/* eax = dcode[hold & dmask] */
L_dodist:
mov ebp, eax /* dist = this */
shr ebp, 16 /* dist = this.val */
mov cl, ah
sub bl, ah /* bits -= this.bits */
shr edx, cl /* hold >>= this.bits */
mov cl, al /* cl = this.op */
test al, 16 /* if ((op & 16) == 0) */
jz L_test_for_second_level_dist
and cl, 15 /* op &= 15 */
jz L_check_dist_one
cmp bl, cl
jae L_add_bits_to_dist /* if (op <= bits) 97.6% */
mov ch, cl /* stash op in ch, freeing cl */
xor eax, eax
lodsw /* al = *(ushort *)in++ */
mov cl, bl /* cl = bits, needs it for shifting */
add bl, 16 /* bits += 16 */
shl eax, cl
or edx, eax /* hold |= *((ushort *)in)++ << bits */
mov cl, ch /* move op back to ecx */
L_add_bits_to_dist:
mov eax, 1
shl eax, cl
dec eax /* (1 << op) - 1 */
sub bl, cl
and eax, edx /* eax &= hold */
shr edx, cl
add ebp, eax /* dist += hold & ((1 << op) - 1) */
L_check_window:
mov [esp+4], esi /* save in so from can use it's reg */
mov eax, edi
sub eax, [esp+16] /* nbytes = out - beg */
cmp eax, ebp
jb L_clip_window /* if (dist > nbytes) 4.2% */
mov ecx, [esp+60]
mov esi, edi
sub esi, ebp /* from = out - dist */
sub ecx, 3 /* copy from to out */
mov al, [esi]
mov [edi], al
mov al, [esi+1]
mov ah, [esi+2]
add esi, 3
mov [edi+1], al
mov [edi+2], ah
add edi, 3
rep movsb
mov esi, [esp+4] /* move in back to %esi, toss from */
mov ebp, [esp+44] /* ebp = lcode */
jmp L_while_test
L_check_dist_one:
cmp ebp, 1 /* if dist 1, is a memset */
jne L_check_window
cmp [esp+16], edi
je L_check_window
dec edi
mov ecx, [esp+60]
mov al, [edi]
sub ecx, 3
mov [edi+1], al /* memset out with from[-1] */
mov [edi+2], al
mov [edi+3], al
add edi, 4
rep stosb
mov ebp, [esp+44] /* ebp = lcode */
jmp L_while_test
L_test_for_second_level_length:
test al, 64
jnz L_test_for_end_of_block /* if ((op & 64) != 0) */
mov eax, 1
shl eax, cl
dec eax
and eax, edx /* eax &= hold */
add eax, [esp+60] /* eax += this.val */
mov eax, [ebp+eax*4] /* eax = lcode[val+(hold&mask[op])]*/
jmp L_dolen
L_test_for_second_level_dist:
test al, 64
jnz L_invalid_distance_code /* if ((op & 64) != 0) */
mov eax, 1
shl eax, cl
dec eax
and eax, edx /* eax &= hold */
add eax, ebp /* eax += this.val */
mov ecx, [esp+48] /* ecx = dcode */
mov eax, [ecx+eax*4] /* eax = dcode[val+(hold&mask[op])]*/
jmp L_dodist
L_clip_window:
mov ecx, eax
mov eax, [esp+24] /* prepare for dist compare */
neg ecx /* nbytes = -nbytes */
mov esi, [esp+32] /* from = window */
cmp eax, ebp
jb L_invalid_distance_too_far /* if (dist > wsize) */
add ecx, ebp /* nbytes = dist - nbytes */
cmp dword ptr [esp+28], 0
jne L_wrap_around_window /* if (write != 0) */
sub eax, ecx
add esi, eax /* from += wsize - nbytes */
mov eax, [esp+60]
cmp eax, ecx
jbe L_do_copy1 /* if (nbytes >= len) */
sub eax, ecx /* len -= nbytes */
rep movsb
mov esi, edi
sub esi, ebp /* from = out - dist */
jmp L_do_copy1
cmp eax, ecx
jbe L_do_copy1 /* if (nbytes >= len) */
sub eax, ecx /* len -= nbytes */
rep movsb
mov esi, edi
sub esi, ebp /* from = out - dist */
jmp L_do_copy1
L_wrap_around_window:
mov eax, [esp+28]
cmp ecx, eax
jbe L_contiguous_in_window /* if (write >= nbytes) */
add esi, [esp+24]
add esi, eax
sub esi, ecx /* from += wsize + write - nbytes */
sub ecx, eax /* nbytes -= write */
mov eax, [esp+60]
cmp eax, ecx
jbe L_do_copy1 /* if (nbytes >= len) */
sub eax, ecx /* len -= nbytes */
rep movsb
mov esi, [esp+32] /* from = window */
mov ecx, [esp+28] /* nbytes = write */
cmp eax, ecx
jbe L_do_copy1 /* if (nbytes >= len) */
sub eax, ecx /* len -= nbytes */
rep movsb
mov esi, edi
sub esi, ebp /* from = out - dist */
jmp L_do_copy1
L_contiguous_in_window:
add esi, eax
sub esi, ecx /* from += write - nbytes */
mov eax, [esp+60]
cmp eax, ecx
jbe L_do_copy1 /* if (nbytes >= len) */
sub eax, ecx /* len -= nbytes */
rep movsb
mov esi, edi
sub esi, ebp /* from = out - dist */
L_do_copy1:
mov ecx, eax
rep movsb
mov esi, [esp+4] /* move in back to %esi, toss from */
mov ebp, [esp+44] /* ebp = lcode */
jmp L_while_test
L_test_for_end_of_block:
test al, 32
jz L_invalid_literal_length_code
mov dword ptr [esp+68], 1
jmp L_break_loop_with_status
L_invalid_literal_length_code:
mov dword ptr [esp+68], 2
jmp L_break_loop_with_status
L_invalid_distance_code:
mov dword ptr [esp+68], 3
jmp L_break_loop_with_status
L_invalid_distance_too_far:
mov esi, [esp+4]
mov dword ptr [esp+68], 4
jmp L_break_loop_with_status
L_break_loop:
mov dword ptr [esp+68], 0
L_break_loop_with_status:
/* put in, out, bits, and hold back into ar and pop esp */
mov [esp+4], esi
mov [esp+12], edi
mov [esp+40], ebx
mov [esp+36], edx
mov esp, [esp]
pop ebp
popfd
}
#endif
if (ar.status > 1) {
if (ar.status == 2)
strm->msg = "invalid literal/length code";
else if (ar.status == 3)
strm->msg = "invalid distance code";
else
strm->msg = "invalid distance too far back";
state->mode = BAD;
}
else if ( ar.status == 1 ) {
state->mode = TYPE;
}
/* return unused bytes (on entry, bits < 8, so in won't go too far back) */
ar.len = ar.bits >> 3;
ar.in -= ar.len;
ar.bits -= ar.len << 3;
ar.hold &= (1U << ar.bits) - 1;
/* update state and return */
strm->next_in = ar.in;
strm->next_out = ar.out;
strm->avail_in = (unsigned)(ar.in < ar.last ? 5 + (ar.last - ar.in) :
5 - (ar.in - ar.last));
strm->avail_out = (unsigned)(ar.out < ar.end ? 257 + (ar.end - ar.out) :
257 - (ar.out - ar.end));
state->hold = ar.hold;
state->bits = ar.bits;
return;
}

2472
contrib/inflate86/inffast.S
View File

File diff suppressed because it is too large Load Diff

9
contrib/minizip/ChangeLogUnzip
View File

@ -1,3 +1,12 @@
Change in 0.21: (10 Mar 03)
- bug fixes
Change in 0.17: (27 Jan 02)
- bug fixes
Change in 0.16: (19 Jan 02)
- Support of ioapi for virtualize zip file access
Change in 0.15: (19 Mar 98)
- fix memory leak in minizip.c

4
contrib/minizip/Makefile
View File

@ -1,8 +1,8 @@
CC=cc
CFLAGS=-O -I../..
UNZ_OBJS = miniunz.o unzip.o ../../libz.a
ZIP_OBJS = minizip.o zip.o ../../libz.a
UNZ_OBJS = miniunz.o unzip.o ioapi.o ../../libz.a
ZIP_OBJS = minizip.o zip.o ioapi.o ../../libz.a
.c.o:
$(CC) -c $(CFLAGS) $*.c

104
contrib/minizip/crypt.h Normal file
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@ -0,0 +1,104 @@
#define CRC32(c, b) ((*(pcrc_32_tab+(((int)(c) ^ (b)) & 0xff))) ^ ((c) >> 8))
/***********************************************************************
* Return the next byte in the pseudo-random sequence
*/
static int decrypt_byte(unsigned long* pkeys, const unsigned long* pcrc_32_tab)
{
unsigned temp; /* POTENTIAL BUG: temp*(temp^1) may overflow in an
* unpredictable manner on 16-bit systems; not a problem
* with any known compiler so far, though */
temp = ((unsigned)(*(pkeys+2)) & 0xffff) | 2;
return (int)(((temp * (temp ^ 1)) >> 8) & 0xff);
}
/***********************************************************************
* Update the encryption keys with the next byte of plain text
*/
static int update_keys(unsigned long* pkeys,const unsigned long* pcrc_32_tab,int c)
{
(*(pkeys+0)) = CRC32((*(pkeys+0)), c);
(*(pkeys+1)) += (*(pkeys+0)) & 0xff;
(*(pkeys+1)) = (*(pkeys+1)) * 134775813L + 1;
{
register int keyshift = (int)((*(pkeys+1)) >> 24);
(*(pkeys+2)) = CRC32((*(pkeys+2)), keyshift);
}
return c;
}
/***********************************************************************
* Initialize the encryption keys and the random header according to
* the given password.
*/
static void init_keys(const char* passwd,unsigned long* pkeys,const unsigned long* pcrc_32_tab)
{
*(pkeys+0) = 305419896L;
*(pkeys+1) = 591751049L;
*(pkeys+2) = 878082192L;
while (*passwd != '\0') {
update_keys(pkeys,pcrc_32_tab,(int)*passwd);
passwd++;
}
}
#define zdecode(pkeys,pcrc_32_tab,c) \
(update_keys(pkeys,pcrc_32_tab,c ^= decrypt_byte(pkeys,pcrc_32_tab)))
#define zencode(pkeys,pcrc_32_tab,c,t) \
(t=decrypt_byte(pkeys,pcrc_32_tab), update_keys(pkeys,pcrc_32_tab,c), t^(c))
#ifdef INCLUDECRYPTINGCODE_IFCRYPTALLOWED
#define RAND_HEAD_LEN 12
/* "last resort" source for second part of crypt seed pattern */
# ifndef ZCR_SEED2
# define ZCR_SEED2 (unsigned long)3141592654L /* use PI as default pattern */
# endif
static int crypthead(passwd, buf, bufSize, pkeys, pcrc_32_tab, crcForCrypting)
const char *passwd; /* password string */
unsigned char *buf; /* where to write header */
int bufSize;
unsigned long* pkeys;
const unsigned long* pcrc_32_tab;
unsigned long crcForCrypting;
{
int n; /* index in random header */
int t; /* temporary */
int c; /* random byte */
unsigned char header[RAND_HEAD_LEN-2]; /* random header */
static unsigned calls = 0; /* ensure different random header each time */
if (bufSize<RAND_HEAD_LEN)
return 0;
/* First generate RAND_HEAD_LEN-2 random bytes. We encrypt the
* output of rand() to get less predictability, since rand() is
* often poorly implemented.
*/
if (++calls == 1)
{
srand((unsigned)(time(NULL) ^ ZCR_SEED2));
}
init_keys(passwd, pkeys, pcrc_32_tab);
for (n = 0; n < RAND_HEAD_LEN-2; n++)
{
c = (rand() >> 7) & 0xff;
header[n] = (unsigned char)zencode(pkeys, pcrc_32_tab, c, t);
}
/* Encrypt random header (last two bytes is high word of crc) */
init_keys(passwd, pkeys, pcrc_32_tab);
for (n = 0; n < RAND_HEAD_LEN-2; n++)
{
buf[n] = (unsigned char)zencode(pkeys, pcrc_32_tab, header[n], t);
}
buf[n++] = zencode(pkeys, pcrc_32_tab, (int)(crcForCrypting >> 16) & 0xff, t);
buf[n++] = zencode(pkeys, pcrc_32_tab, (int)(crcForCrypting >> 24) & 0xff, t);
return n;
}
#endif

177
contrib/minizip/ioapi.c Normal file
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@ -0,0 +1,177 @@
/* ioapi.c -- IO base function header for compress/uncompress .zip
files using zlib + zip or unzip API
Version 0.21, March 10th, 2003
Copyright (C) 1998-2003 Gilles Vollant
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "zlib.h"
#include "ioapi.h"
/* I've found an old Unix (a SunOS 4.1.3_U1) without all SEEK_* defined.... */
#ifndef SEEK_CUR
#define SEEK_CUR 1
#endif
#ifndef SEEK_END
#define SEEK_END 2
#endif
#ifndef SEEK_SET
#define SEEK_SET 0
#endif
voidpf ZCALLBACK fopen_file_func OF((
voidpf opaque,
const char* filename,
int mode));
uLong ZCALLBACK fread_file_func OF((
voidpf opaque,
voidpf stream,
void* buf,
uLong size));
uLong ZCALLBACK fwrite_file_func OF((
voidpf opaque,
voidpf stream,
const void* buf,
uLong size));
long ZCALLBACK ftell_file_func OF((
voidpf opaque,
voidpf stream));
long ZCALLBACK fseek_file_func OF((
voidpf opaque,
voidpf stream,
uLong offset,
int origin));
int ZCALLBACK fclose_file_func OF((
voidpf opaque,
voidpf stream));
int ZCALLBACK ferror_file_func OF((
voidpf opaque,
voidpf stream));
voidpf ZCALLBACK fopen_file_func (opaque, filename, mode)
voidpf opaque;
const char* filename;
int mode;
{
FILE* file = NULL;
const char* mode_fopen = NULL;
if ((mode & ZLIB_FILEFUNC_MODE_READWRITEFILTER)==ZLIB_FILEFUNC_MODE_READ)
mode_fopen = "rb";
else
if (mode & ZLIB_FILEFUNC_MODE_EXISTING)
mode_fopen = "r+b";
else
if (mode & ZLIB_FILEFUNC_MODE_CREATE)
mode_fopen = "wb";
if ((filename!=NULL) && (mode_fopen != NULL))
file = fopen(filename, mode_fopen);
return file;
}
uLong ZCALLBACK fread_file_func (opaque, stream, buf, size)
voidpf opaque;
voidpf stream;
void* buf;
uLong size;
{
uLong ret;
ret = fread(buf, 1, (size_t)size, (FILE *)stream);
return ret;
}
uLong ZCALLBACK fwrite_file_func (opaque, stream, buf, size)
voidpf opaque;
voidpf stream;
const void* buf;
uLong size;
{
uLong ret;
ret = fwrite(buf, 1, (size_t)size, (FILE *)stream);
return ret;
}
long ZCALLBACK ftell_file_func (opaque, stream)
voidpf opaque;
voidpf stream;
{
long ret;
ret = ftell((FILE *)stream);
return ret;
}
long ZCALLBACK fseek_file_func (opaque, stream, offset, origin)
voidpf opaque;
voidpf stream;
uLong offset;
int origin;
{
int fseek_origin=0;
long ret;
switch (origin)
{
case ZLIB_FILEFUNC_SEEK_CUR :
fseek_origin = SEEK_CUR;
break;
case ZLIB_FILEFUNC_SEEK_END :
fseek_origin = SEEK_END;
break;
case ZLIB_FILEFUNC_SEEK_SET :
fseek_origin = SEEK_SET;
break;
default: return -1;
}
ret = 0;
fseek((FILE *)stream, offset, fseek_origin);
return ret;
}
int ZCALLBACK fclose_file_func (opaque, stream)
voidpf opaque;
voidpf stream;
{
int ret;
ret = fclose((FILE *)stream);
return ret;
}
int ZCALLBACK ferror_file_func (opaque, stream)
voidpf opaque;
voidpf stream;
{
int ret;
ret = ferror((FILE *)stream);
return ret;
}
void fill_fopen_filefunc (pzlib_filefunc_def)
zlib_filefunc_def* pzlib_filefunc_def;
{
pzlib_filefunc_def->zopen_file = fopen_file_func;
pzlib_filefunc_def->zread_file = fread_file_func;
pzlib_filefunc_def->zwrite_file = fwrite_file_func;
pzlib_filefunc_def->ztell_file = ftell_file_func;
pzlib_filefunc_def->zseek_file = fseek_file_func;
pzlib_filefunc_def->zclose_file = fclose_file_func;
pzlib_filefunc_def->zerror_file = ferror_file_func;
pzlib_filefunc_def->opaque = NULL;
}

75
contrib/minizip/ioapi.h Normal file
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@ -0,0 +1,75 @@
/* ioapi.h -- IO base function header for compress/uncompress .zip
files using zlib + zip or unzip API
Version 0.21, March 10th, 2003
Copyright (C) 1998-2003 Gilles Vollant
*/
#ifndef _ZLIBIOAPI_H
#define _ZLIBIOAPI_H
#define ZLIB_FILEFUNC_SEEK_CUR (1)
#define ZLIB_FILEFUNC_SEEK_END (2)
#define ZLIB_FILEFUNC_SEEK_SET (0)
#define ZLIB_FILEFUNC_MODE_READ (1)
#define ZLIB_FILEFUNC_MODE_WRITE (2)
#define ZLIB_FILEFUNC_MODE_READWRITEFILTER (3)
#define ZLIB_FILEFUNC_MODE_EXISTING (4)
#define ZLIB_FILEFUNC_MODE_CREATE (8)
#ifndef ZCALLBACK
#if (defined(WIN32) || defined (WINDOWS) || defined (_WINDOWS)) && defined(CALLBACK) && defined (USEWINDOWS_CALLBACK)
#define ZCALLBACK CALLBACK
#else
#define ZCALLBACK
#endif
#endif
#ifdef __cplusplus
extern "C" {
#endif
typedef voidpf (ZCALLBACK *open_file_func) OF((voidpf opaque, const char* filename, int mode));
typedef uLong (ZCALLBACK *read_file_func) OF((voidpf opaque, voidpf stream, void* buf, uLong size));
typedef uLong (ZCALLBACK *write_file_func) OF((voidpf opaque, voidpf stream, const void* buf, uLong size));
typedef long (ZCALLBACK *tell_file_func) OF((voidpf opaque, voidpf stream));
typedef long (ZCALLBACK *seek_file_func) OF((voidpf opaque, voidpf stream, uLong offset, int origin));
typedef int (ZCALLBACK *close_file_func) OF((voidpf opaque, voidpf stream));
typedef int (ZCALLBACK *testerror_file_func) OF((voidpf opaque, voidpf stream));
typedef struct zlib_filefunc_def_s
{
open_file_func zopen_file;
read_file_func zread_file;
write_file_func zwrite_file;
tell_file_func ztell_file;
seek_file_func zseek_file;
close_file_func zclose_file;
testerror_file_func zerror_file;
voidpf opaque;
} zlib_filefunc_def;
void fill_fopen_filefunc OF((zlib_filefunc_def* pzlib_filefunc_def));
#define ZREAD(filefunc,filestream,buf,size) ((*((filefunc).zread_file))((filefunc).opaque,filestream,buf,size))
#define ZWRITE(filefunc,filestream,buf,size) ((*((filefunc).zwrite_file))((filefunc).opaque,filestream,buf,size))
#define ZTELL(filefunc,filestream) ((*((filefunc).ztell_file))((filefunc).opaque,filestream))
#define ZSEEK(filefunc,filestream,pos,mode) ((*((filefunc).zseek_file))((filefunc).opaque,filestream,pos,mode))
#define ZCLOSE(filefunc,filestream) ((*((filefunc).zclose_file))((filefunc).opaque,filestream))
#define ZERROR(filefunc,filestream) ((*((filefunc).zerror_file))((filefunc).opaque,filestream))
#ifdef __cplusplus
}
#endif
#endif

271
contrib/minizip/iowin32.c Normal file
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@ -0,0 +1,271 @@
/* iowin32.c -- IO base function header for compress/uncompress .zip
files using zlib + zip or unzip API
This IO API version uses the Win32 API (for Microsoft Windows)
Version 0.21, March 10th, 2003
Copyright (C) 1998-2003 Gilles Vollant
*/
#include <windows.h>
#include <stdlib.h>
#include "zlib.h"
#include "ioapi.h"
#include "iowin32.h"
#ifndef INVALID_HANDLE_VALUE
#define INVALID_HANDLE_VALUE (0xFFFFFFFF)
#endif
#ifndef INVALID_SET_FILE_POINTER
#define INVALID_SET_FILE_POINTER ((DWORD)-1)
#endif
voidpf ZCALLBACK win32_open_file_func OF((
voidpf opaque,
const char* filename,
int mode));
uLong ZCALLBACK win32_read_file_func OF((
voidpf opaque,
voidpf stream,
void* buf,
uLong size));
uLong ZCALLBACK win32_write_file_func OF((
voidpf opaque,
voidpf stream,
const void* buf,
uLong size));
long ZCALLBACK win32_tell_file_func OF((
voidpf opaque,
voidpf stream));
long ZCALLBACK win32_seek_file_func OF((
voidpf opaque,
voidpf stream,
uLong offset,
int origin));
long ZCALLBACK win32_close_file_func OF((
voidpf opaque,
voidpf stream));
int ZCALLBACK win32_error_file_func OF((
voidpf opaque,
voidpf stream));
typedef struct
{
HANDLE hf;
int error;
} WIN32FILE_IOWIN;
voidpf ZCALLBACK win32_open_file_func (opaque, filename, mode)
voidpf opaque;
const char* filename;
int mode;
{
const char* mode_fopen = NULL;
DWORD dwDesiredAccess,dwCreationDisposition,dwShareMode,dwFlagsAndAttributes ;
HANDLE hFile = 0;
voidpf ret=NULL;
dwDesiredAccess = dwShareMode = dwFlagsAndAttributes = 0;
if ((mode & ZLIB_FILEFUNC_MODE_READWRITEFILTER)==ZLIB_FILEFUNC_MODE_READ)
{
dwDesiredAccess = GENERIC_READ;
dwCreationDisposition = OPEN_EXISTING;
dwShareMode = FILE_SHARE_READ;
}
else
if (mode & ZLIB_FILEFUNC_MODE_EXISTING)
{
dwDesiredAccess = GENERIC_WRITE | GENERIC_READ;
dwCreationDisposition = OPEN_EXISTING;
}
else
if (mode & ZLIB_FILEFUNC_MODE_CREATE)
{
dwDesiredAccess = GENERIC_WRITE | GENERIC_READ;
dwCreationDisposition = CREATE_ALWAYS;
}
if ((filename!=NULL) && (dwDesiredAccess != 0))
hFile = CreateFile((LPCTSTR)filename, dwDesiredAccess, dwShareMode, NULL,
dwCreationDisposition, dwFlagsAndAttributes, NULL);
if (hFile == INVALID_HANDLE_VALUE)
hFile = NULL;
if (hFile != NULL)
{
WIN32FILE_IOWIN w32fiow;
w32fiow.hf = hFile;
w32fiow.error = 0;
ret = malloc(sizeof(WIN32FILE_IOWIN));
if (ret==NULL)
CloseHandle(hFile);
else *((WIN32FILE_IOWIN*)ret) = w32fiow;
}
return ret;
}
uLong ZCALLBACK win32_read_file_func (opaque, stream, buf, size)
voidpf opaque;
voidpf stream;
void* buf;
uLong size;
{
uLong ret=0;
HANDLE hFile = NULL;
if (stream!=NULL)
hFile = ((WIN32FILE_IOWIN*)stream) -> hf;
if (hFile != NULL)
if (!ReadFile(hFile, buf, size, &ret, NULL))
{
DWORD dwErr = GetLastError();
if (dwErr == ERROR_HANDLE_EOF)
dwErr = 0;
((WIN32FILE_IOWIN*)stream) -> error=(int)dwErr;
}
return ret;
}
uLong ZCALLBACK win32_write_file_func (opaque, stream, buf, size)
voidpf opaque;
voidpf stream;
const void* buf;
uLong size;
{
uLong ret=0;
HANDLE hFile = NULL;
if (stream!=NULL)
hFile = ((WIN32FILE_IOWIN*)stream) -> hf;
if (hFile !=NULL)
if (!WriteFile(hFile, buf, size, &ret, NULL))
{
DWORD dwErr = GetLastError();
if (dwErr == ERROR_HANDLE_EOF)
dwErr = 0;
((WIN32FILE_IOWIN*)stream) -> error=(int)dwErr;
}
return ret;
}
long ZCALLBACK win32_tell_file_func (opaque, stream)
voidpf opaque;
voidpf stream;
{
long ret=-1;
HANDLE hFile = NULL;
if (stream!=NULL)
hFile = ((WIN32FILE_IOWIN*)stream) -> hf;
if (hFile != NULL)
{
DWORD dwSet = SetFilePointer(hFile, 0, NULL, FILE_CURRENT);
if (dwSet == INVALID_SET_FILE_POINTER)
{
DWORD dwErr = GetLastError();
((WIN32FILE_IOWIN*)stream) -> error=(int)dwErr;
ret = -1;
}
else
ret=(long)dwSet;
}
return ret;
}
long ZCALLBACK win32_seek_file_func (opaque, stream, offset, origin)
voidpf opaque;
voidpf stream;
uLong offset;
int origin;
{
DWORD dwMoveMethod=0xFFFFFFFF;
HANDLE hFile = NULL;
long ret=-1;
if (stream!=NULL)
hFile = ((WIN32FILE_IOWIN*)stream) -> hf;
switch (origin)
{
case ZLIB_FILEFUNC_SEEK_CUR :
dwMoveMethod = FILE_CURRENT;
break;
case ZLIB_FILEFUNC_SEEK_END :
dwMoveMethod = FILE_END;
break;
case ZLIB_FILEFUNC_SEEK_SET :
dwMoveMethod = FILE_BEGIN;
break;
default: return -1;
}
if (hFile != NULL)
{
DWORD dwSet = SetFilePointer(hFile, offset, NULL, dwMoveMethod);
if (dwSet == INVALID_SET_FILE_POINTER)
{
DWORD dwErr = GetLastError();
((WIN32FILE_IOWIN*)stream) -> error=(int)dwErr;
ret = -1;
}
else
ret=0;
}
return ret;
}
long ZCALLBACK win32_close_file_func (opaque, stream)
voidpf opaque;
voidpf stream;
{
long ret=-1;
if (stream!=NULL)
{
HANDLE hFile;
hFile = ((WIN32FILE_IOWIN*)stream) -> hf;
if (hFile != NULL)
{
CloseHandle(hFile);
ret=0;
}
free(stream);
}
return ret;
}
int ZCALLBACK win32_error_file_func (opaque, stream)
voidpf opaque;
voidpf stream;
{
int ret=-1;
if (stream!=NULL)
{
ret = ((WIN32FILE_IOWIN*)stream) -> error;
}
return ret;
}
void fill_win32_filefunc (pzlib_filefunc_def)
zlib_filefunc_def* pzlib_filefunc_def;
{
pzlib_filefunc_def->zopen_file = win32_open_file_func;
pzlib_filefunc_def->zread_file = win32_read_file_func;
pzlib_filefunc_def->zwrite_file = win32_write_file_func;
pzlib_filefunc_def->ztell_file = win32_tell_file_func;
pzlib_filefunc_def->zseek_file = win32_seek_file_func;
pzlib_filefunc_def->zclose_file = win32_close_file_func;
pzlib_filefunc_def->zerror_file = win32_error_file_func;
pzlib_filefunc_def->opaque=NULL;
}

19
contrib/minizip/iowin32.h Normal file
View File

@ -0,0 +1,19 @@
/* iowin32.h -- IO base function header for compress/uncompress .zip
files using zlib + zip or unzip API
This IO API version uses the Win32 API (for Microsoft Windows)
Version 0.21, March 10th, 2003
Copyright (C) 1998-2003 Gilles Vollant
*/
#ifdef __cplusplus
extern "C" {
#endif
void fill_win32_filefunc OF((zlib_filefunc_def* pzlib_filefunc_def));
#ifdef __cplusplus
}
#endif

577
contrib/minizip/miniunz.c
View File

@ -17,7 +17,12 @@
#define CASESENSITIVITY (0)
#define WRITEBUFFERSIZE (8192)
#define MAXFILENAME (256)
#ifdef WIN32
#define USEWIN32IOAPI
#include "iowin32.h"
#endif
/*
mini unzip, demo of unzip package
@ -34,9 +39,9 @@
dosdate : the new date at the MSDos format (4 bytes)
tmu_date : the SAME new date at the tm_unz format */
void change_file_date(filename,dosdate,tmu_date)
const char *filename;
uLong dosdate;
tm_unz tmu_date;
const char *filename;
uLong dosdate;
tm_unz tmu_date;
{
#ifdef WIN32
HANDLE hFile;
@ -75,17 +80,17 @@ void change_file_date(filename,dosdate,tmu_date)
As I don't know well Unix, I wait feedback for the unix portion */
int mymkdir(dirname)
const char* dirname;
const char* dirname;
{
int ret=0;
#ifdef WIN32
ret = mkdir(dirname);
ret = mkdir(dirname);
#else
#ifdef unix
ret = mkdir (dirname,0775);
ret = mkdir (dirname,0775);
#endif
#endif
return ret;
return ret;
}
int makedir (newdir)
@ -93,14 +98,14 @@ int makedir (newdir)
{
char *buffer ;
char *p;
int len = strlen(newdir);
int len = (int)strlen(newdir);
if (len <= 0)
if (len <= 0)
return 0;
buffer = (char*)malloc(len+1);
strcpy(buffer,newdir);
if (buffer[len-1] == '/') {
buffer[len-1] = '\0';
}
@ -135,104 +140,105 @@ int makedir (newdir)
void do_banner()
{
printf("MiniUnz 0.15, demo of zLib + Unz package written by Gilles Vollant\n");
printf("more info at http://wwww.winimage/zLibDll/unzip.htm\n\n");
printf("MiniUnz 0.15, demo of zLib + Unz package written by Gilles Vollant\n");
printf("more info at http://www.winimage.com/zLibDll/unzip.html\n\n");
}
void do_help()
{
printf("Usage : miniunz [-exvlo] file.zip [file_to_extract]\n\n") ;
{
printf("Usage : miniunz [-exvlo] file.zip [file_to_extract]\n\n") ;
}
int do_list(uf)
unzFile uf;
unzFile uf;
{
uLong i;
unz_global_info gi;
int err;
uLong i;
unz_global_info gi;
int err;
err = unzGetGlobalInfo (uf,&gi);
if (err!=UNZ_OK)
printf("error %d with zipfile in unzGetGlobalInfo \n",err);
err = unzGetGlobalInfo (uf,&gi);
if (err!=UNZ_OK)
printf("error %d with zipfile in unzGetGlobalInfo \n",err);
printf(" Length Method Size Ratio Date Time CRC-32 Name\n");
printf(" ------ ------ ---- ----- ---- ---- ------ ----\n");
for (i=0;i<gi.number_entry;i++)
{
char filename_inzip[256];
unz_file_info file_info;
uLong ratio=0;
const char *string_method;
err = unzGetCurrentFileInfo(uf,&file_info,filename_inzip,sizeof(filename_inzip),NULL,0,NULL,0);
if (err!=UNZ_OK)
{
printf("error %d with zipfile in unzGetCurrentFileInfo\n",err);
break;
}
if (file_info.uncompressed_size>0)
ratio = (file_info.compressed_size*100)/file_info.uncompressed_size;
for (i=0;i<gi.number_entry;i++)
{
char filename_inzip[256];
unz_file_info file_info;
uLong ratio=0;
const char *string_method;
err = unzGetCurrentFileInfo(uf,&file_info,filename_inzip,sizeof(filename_inzip),NULL,0,NULL,0);
if (err!=UNZ_OK)
{
printf("error %d with zipfile in unzGetCurrentFileInfo\n",err);
break;
}
if (file_info.uncompressed_size>0)
ratio = (file_info.compressed_size*100)/file_info.uncompressed_size;
if (file_info.compression_method==0)
string_method="Stored";
else
if (file_info.compression_method==Z_DEFLATED)
{
uInt iLevel=(uInt)((file_info.flag & 0x6)/2);
if (iLevel==0)
string_method="Defl:N";
else if (iLevel==1)
string_method="Defl:X";
else if ((iLevel==2) || (iLevel==3))
string_method="Defl:F"; /* 2:fast , 3 : extra fast*/
}
else
string_method="Unkn. ";
if (file_info.compression_method==0)
string_method="Stored";
else
if (file_info.compression_method==Z_DEFLATED)
{
uInt iLevel=(uInt)((file_info.flag & 0x6)/2);
if (iLevel==0)
string_method="Defl:N";
else if (iLevel==1)
string_method="Defl:X";
else if ((iLevel==2) || (iLevel==3))
string_method="Defl:F"; /* 2:fast , 3 : extra fast*/
}
else
string_method="Unkn. ";
printf("%7lu %6s %7lu %3lu%% %2.2lu-%2.2lu-%2.2lu %2.2lu:%2.2lu %8.8lx %s\n",
file_info.uncompressed_size,string_method,file_info.compressed_size,
ratio,
(uLong)file_info.tmu_date.tm_mon + 1,
printf("%7lu %6s %7lu %3lu%% %2.2lu-%2.2lu-%2.2lu %2.2lu:%2.2lu %8.8lx %s\n",
file_info.uncompressed_size,string_method,file_info.compressed_size,
ratio,
(uLong)file_info.tmu_date.tm_mon + 1,
(uLong)file_info.tmu_date.tm_mday,
(uLong)file_info.tmu_date.tm_year % 100,
(uLong)file_info.tmu_date.tm_hour,(uLong)file_info.tmu_date.tm_min,
(uLong)file_info.crc,filename_inzip);
if ((i+1)<gi.number_entry)
{
err = unzGoToNextFile(uf);
if (err!=UNZ_OK)
{
printf("error %d with zipfile in unzGoToNextFile\n",err);
break;
}
}
}
(uLong)file_info.tmu_date.tm_year % 100,
(uLong)file_info.tmu_date.tm_hour,(uLong)file_info.tmu_date.tm_min,
(uLong)file_info.crc,filename_inzip);
if ((i+1)<gi.number_entry)
{
err = unzGoToNextFile(uf);
if (err!=UNZ_OK)
{
printf("error %d with zipfile in unzGoToNextFile\n",err);
break;
}
}
}
return 0;
return 0;
}
int do_extract_currentfile(uf,popt_extract_without_path,popt_overwrite)
unzFile uf;
const int* popt_extract_without_path;
int do_extract_currentfile(uf,popt_extract_without_path,popt_overwrite,password)
unzFile uf;
const int* popt_extract_without_path;
int* popt_overwrite;
const char* password;
{
char filename_inzip[256];
char* filename_withoutpath;
char* p;
char filename_inzip[256];
char* filename_withoutpath;
char* p;
int err=UNZ_OK;
FILE *fout=NULL;
void* buf;
uInt size_buf;
unz_file_info file_info;
uLong ratio=0;
err = unzGetCurrentFileInfo(uf,&file_info,filename_inzip,sizeof(filename_inzip),NULL,0,NULL,0);
if (err!=UNZ_OK)
{
printf("error %d with zipfile in unzGetCurrentFileInfo\n",err);
return err;
}
unz_file_info file_info;
uLong ratio=0;
err = unzGetCurrentFileInfo(uf,&file_info,filename_inzip,sizeof(filename_inzip),NULL,0,NULL,0);
if (err!=UNZ_OK)
{
printf("error %d with zipfile in unzGetCurrentFileInfo\n",err);
return err;
}
size_buf = WRITEBUFFERSIZE;
buf = (void*)malloc(size_buf);
@ -242,71 +248,71 @@ int do_extract_currentfile(uf,popt_extract_without_path,popt_overwrite)
return UNZ_INTERNALERROR;
}
p = filename_withoutpath = filename_inzip;
while ((*p) != '\0')
{
if (((*p)=='/') || ((*p)=='\\'))
filename_withoutpath = p+1;
p++;
}
p = filename_withoutpath = filename_inzip;
while ((*p) != '\0')
{
if (((*p)=='/') || ((*p)=='\\'))
filename_withoutpath = p+1;
p++;
}
if ((*filename_withoutpath)=='\0')
{
if ((*popt_extract_without_path)==0)
{
printf("creating directory: %s\n",filename_inzip);
mymkdir(filename_inzip);
}
}
else
{
const char* write_filename;
int skip=0;
if ((*filename_withoutpath)=='\0')
{
if ((*popt_extract_without_path)==0)
{
printf("creating directory: %s\n",filename_inzip);
mymkdir(filename_inzip);
}
}
else
{
const char* write_filename;
int skip=0;
if ((*popt_extract_without_path)==0)
write_filename = filename_inzip;
else
write_filename = filename_withoutpath;
if ((*popt_extract_without_path)==0)
write_filename = filename_inzip;
else
write_filename = filename_withoutpath;
err = unzOpenCurrentFile(uf);
if (err!=UNZ_OK)
{
printf("error %d with zipfile in unzOpenCurrentFile\n",err);
}
err = unzOpenCurrentFilePassword(uf,password);
if (err!=UNZ_OK)
{
printf("error %d with zipfile in unzOpenCurrentFilePassword\n",err);
}
if (((*popt_overwrite)==0) && (err==UNZ_OK))
{
char rep;
FILE* ftestexist;
ftestexist = fopen(write_filename,"rb");
if (ftestexist!=NULL)
{
fclose(ftestexist);
do
{
char answer[128];
printf("The file %s exist. Overwrite ? [y]es, [n]o, [A]ll: ",write_filename);
scanf("%1s",answer);
rep = answer[0] ;
if ((rep>='a') && (rep<='z'))
rep -= 0x20;
}
while ((rep!='Y') && (rep!='N') && (rep!='A'));
}
if (((*popt_overwrite)==0) && (err==UNZ_OK))
{
char rep=0;
FILE* ftestexist;
ftestexist = fopen(write_filename,"rb");
if (ftestexist!=NULL)
{
fclose(ftestexist);
do
{
char answer[128];
printf("The file %s exist. Overwrite ? [y]es, [n]o, [A]ll: ",write_filename);
scanf("%1s",answer);
rep = answer[0] ;
if ((rep>='a') && (rep<='z'))
rep -= 0x20;
}
while ((rep!='Y') && (rep!='N') && (rep!='A'));
}
if (rep == 'N')
skip = 1;
if (rep == 'N')
skip = 1;
if (rep == 'A')
*popt_overwrite=1;
}
if (rep == 'A')
*popt_overwrite=1;
}
if ((skip==0) && (err==UNZ_OK))
{
fout=fopen(write_filename,"wb");
if ((skip==0) && (err==UNZ_OK))
{
fout=fopen(write_filename,"wb");
/* some zipfile don't contain directory alone before file */
if ((fout==NULL) && ((*popt_extract_without_path)==0) &&
if ((fout==NULL) && ((*popt_extract_without_path)==0) &&
(filename_withoutpath!=(char*)filename_inzip))
{
char c=*(filename_withoutpath-1);
@ -316,95 +322,100 @@ int do_extract_currentfile(uf,popt_extract_without_path,popt_overwrite)
fout=fopen(write_filename,"wb");
}
if (fout==NULL)
{
printf("error opening %s\n",write_filename);
}
}
if (fout==NULL)
{
printf("error opening %s\n",write_filename);
}
}
if (fout!=NULL)
{
printf(" extracting: %s\n",write_filename);
if (fout!=NULL)
{
printf(" extracting: %s\n",write_filename);
do
{
err = unzReadCurrentFile(uf,buf,size_buf);
if (err<0)
{
printf("error %d with zipfile in unzReadCurrentFile\n",err);
break;
}
if (err>0)
if (fwrite(buf,err,1,fout)!=1)
{
printf("error in writing extracted file\n");
do
{
err = unzReadCurrentFile(uf,buf,size_buf);
if (err<0)
{
printf("error %d with zipfile in unzReadCurrentFile\n",err);
break;
}
if (err>0)
if (fwrite(buf,err,1,fout)!=1)
{
printf("error in writing extracted file\n");
err=UNZ_ERRNO;
break;
}
}
while (err>0);
fclose(fout);
if (err==0)
change_file_date(write_filename,file_info.dosDate,
file_info.tmu_date);
}
break;
}
}
while (err>0);
if (fout)
fclose(fout);
if (err==0)
change_file_date(write_filename,file_info.dosDate,
file_info.tmu_date);
}
if (err==UNZ_OK)
{
err = unzCloseCurrentFile (uf);
if (err!=UNZ_OK)
{
printf("error %d with zipfile in unzCloseCurrentFile\n",err);
}
err = unzCloseCurrentFile (uf);
if (err!=UNZ_OK)
{
printf("error %d with zipfile in unzCloseCurrentFile\n",err);
}
}
else
unzCloseCurrentFile(uf); /* don't lose the error */
}
unzCloseCurrentFile(uf); /* don't lose the error */
}
free(buf);
free(buf);
return err;
}
int do_extract(uf,opt_extract_without_path,opt_overwrite)
unzFile uf;
int opt_extract_without_path;
int do_extract(uf,opt_extract_without_path,opt_overwrite,password)
unzFile uf;
int opt_extract_without_path;
int opt_overwrite;
const char* password;
{
uLong i;
unz_global_info gi;
int err;
FILE* fout=NULL;
uLong i;
unz_global_info gi;
int err;
FILE* fout=NULL;
err = unzGetGlobalInfo (uf,&gi);
if (err!=UNZ_OK)
printf("error %d with zipfile in unzGetGlobalInfo \n",err);
err = unzGetGlobalInfo (uf,&gi);
if (err!=UNZ_OK)
printf("error %d with zipfile in unzGetGlobalInfo \n",err);
for (i=0;i<gi.number_entry;i++)
{
for (i=0;i<gi.number_entry;i++)
{
if (do_extract_currentfile(uf,&opt_extract_without_path,
&opt_overwrite) != UNZ_OK)
&opt_overwrite,
password) != UNZ_OK)
break;
if ((i+1)<gi.number_entry)
{
err = unzGoToNextFile(uf);
if (err!=UNZ_OK)
{
printf("error %d with zipfile in unzGoToNextFile\n",err);
break;
}
}
}
if ((i+1)<gi.number_entry)
{
err = unzGoToNextFile(uf);
if (err!=UNZ_OK)
{
printf("error %d with zipfile in unzGoToNextFile\n",err);
break;
}
}
}
return 0;
return 0;
}
int do_extract_onefile(uf,filename,opt_extract_without_path,opt_overwrite)
unzFile uf;
const char* filename;
int opt_extract_without_path;
int do_extract_onefile(uf,filename,opt_extract_without_path,opt_overwrite,password)
unzFile uf;
const char* filename;
int opt_extract_without_path;
int opt_overwrite;
const char* password;
{
int err = UNZ_OK;
if (unzLocateFile(uf,filename,CASESENSITIVITY)!=UNZ_OK)
@ -414,7 +425,8 @@ int do_extract_onefile(uf,filename,opt_extract_without_path,opt_overwrite)
}
if (do_extract_currentfile(uf,&opt_extract_without_path,
&opt_overwrite) == UNZ_OK)
&opt_overwrite,
password) == UNZ_OK)
return 0;
else
return 1;
@ -422,87 +434,110 @@ int do_extract_onefile(uf,filename,opt_extract_without_path,opt_overwrite)
int main(argc,argv)
int argc;
char *argv[];
int argc;
char *argv[];
{
const char *zipfilename=NULL;
const char *zipfilename=NULL;
const char *filename_to_extract=NULL;
int i;
int opt_do_list=0;
int opt_do_extract=1;
int opt_do_extract_withoutpath=0;
int opt_overwrite=0;
char filename_try[512];
unzFile uf=NULL;
const char *password=NULL;
char filename_try[MAXFILENAME+16] = "";
int i;
int opt_do_list=0;
int opt_do_extract=1;
int opt_do_extract_withoutpath=0;
int opt_overwrite=0;
unzFile uf=NULL;
do_banner();
if (argc==1)
{
do_help();
exit(0);
}
else
{
for (i=1;i<argc;i++)
{
if ((*argv[i])=='-')
{
const char *p=argv[i]+1;
while ((*p)!='\0')
{
char c=*(p++);;
if ((c=='l') || (c=='L'))
opt_do_list = 1;
if ((c=='v') || (c=='V'))
opt_do_list = 1;
if ((c=='x') || (c=='X'))
opt_do_extract = 1;
if ((c=='e') || (c=='E'))
opt_do_extract = opt_do_extract_withoutpath = 1;
if ((c=='o') || (c=='O'))
opt_overwrite=1;
}
}
else
do_banner();
if (argc==1)
{
do_help();
return 0;
}
else
{
for (i=1;i<argc;i++)
{
if ((*argv[i])=='-')
{
if (zipfilename == NULL)
zipfilename = argv[i];
const char *p=argv[i]+1;
while ((*p)!='\0')
{
char c=*(p++);;
if ((c=='l') || (c=='L'))
opt_do_list = 1;
if ((c=='v') || (c=='V'))
opt_do_list = 1;
if ((c=='x') || (c=='X'))
opt_do_extract = 1;
if ((c=='e') || (c=='E'))
opt_do_extract = opt_do_extract_withoutpath = 1;
if ((c=='o') || (c=='O'))
opt_overwrite=1;
if (((c=='p') || (c=='P')) && (i+1<argc))
{
password=argv[i+1];
i++;
}
}
}
else
{
if (zipfilename == NULL)
zipfilename = argv[i];
else if (filename_to_extract==NULL)
filename_to_extract = argv[i] ;
}
}
}
}
}
if (zipfilename!=NULL)
{
strcpy(filename_try,zipfilename);
uf = unzOpen(zipfilename);
if (uf==NULL)
{
strcat(filename_try,".zip");
uf = unzOpen(filename_try);
}
}
if (zipfilename!=NULL)
{
if (uf==NULL)
{
printf("Cannot open %s or %s.zip\n",zipfilename,zipfilename);
exit (1);
}
#ifdef USEWIN32IOAPI
zlib_filefunc_def ffunc;
#endif
strncpy(filename_try, zipfilename,MAXFILENAME-1);
/* strncpy doesnt append the trailing NULL, of the string is too long. */
filename_try[ MAXFILENAME ] = '\0';
#ifdef USEWIN32IOAPI
fill_win32_filefunc(&ffunc);
uf = unzOpen2(zipfilename,&ffunc);
#else
uf = unzOpen(zipfilename);
#endif
if (uf==NULL)
{
strcat(filename_try,".zip");
#ifdef USEWIN32IOAPI
uf = unzOpen2(filename_try,&ffunc);
#else
uf = unzOpen(filename_try);
#endif
}
}
if (uf==NULL)
{
printf("Cannot open %s or %s.zip\n",zipfilename,zipfilename);
return 1;
}
printf("%s opened\n",filename_try);
if (opt_do_list==1)
return do_list(uf);
else if (opt_do_extract==1)
if (opt_do_list==1)
return do_list(uf);
else if (opt_do_extract==1)
{
if (filename_to_extract == NULL)
return do_extract(uf,opt_do_extract_withoutpath,opt_overwrite);
return do_extract(uf,opt_do_extract_withoutpath,opt_overwrite,password);
else
return do_extract_onefile(uf,filename_to_extract,
opt_do_extract_withoutpath,opt_overwrite);
opt_do_extract_withoutpath,opt_overwrite,password);
}
unzCloseCurrentFile(uf);
unzCloseCurrentFile(uf);
return 0; /* to avoid warning */
return 0;
}

230
contrib/minizip/minizip.c
View File

@ -17,6 +17,12 @@
#include "zip.h"
#ifdef WIN32
#define USEWIN32IOAPI
#include "iowin32.h"
#endif
#define WRITEBUFFERSIZE (16384)
#define MAXFILENAME (256)
@ -55,12 +61,16 @@ uLong filetime(f, tmzip, dt)
struct stat s; /* results of stat() */
struct tm* filedate;
time_t tm_t=0;
if (strcmp(f,"-")!=0)
{
char name[MAXFILENAME];
char name[MAXFILENAME+1];
int len = strlen(f);
strcpy(name, f);
strncpy(name, f,MAXFILENAME-1);
/* strncpy doesnt append the trailing NULL, of the string is too long. */
name[ MAXFILENAME ] = '\0';
if (name[len - 1] == '/')
name[len - 1] = '\0';
/* not all systems allow stat'ing a file with / appended */
@ -98,10 +108,10 @@ uLong filetime(f, tmzip, dt)
int check_exist_file(filename)
const char* filename;
{
FILE* ftestexist;
FILE* ftestexist;
int ret = 1;
ftestexist = fopen(filename,"rb");
if (ftestexist==NULL)
ftestexist = fopen(filename,"rb");
if (ftestexist==NULL)
ret = 0;
else
fclose(ftestexist);
@ -110,59 +120,107 @@ int check_exist_file(filename)
void do_banner()
{
printf("MiniZip 0.15, demo of zLib + Zip package written by Gilles Vollant\n");
printf("more info at http://wwww.winimage/zLibDll/unzip.htm\n\n");
printf("MiniZip 0.15, demo of zLib + Zip package written by Gilles Vollant\n");
printf("more info at http://www.winimage.com/zLibDll/unzip.html\n\n");
}
void do_help()
{
printf("Usage : minizip [-o] file.zip [files_to_add]\n\n") ;
{
printf("Usage : minizip [-o] file.zip [files_to_add]\n\n") ;
}
/* calculate the CRC32 of a file,
because to encrypt a file, we need known the CRC32 of the file before */
int getFileCrc(const char* filenameinzip,void*buf,unsigned long size_buf,unsigned long* result_crc)
{
unsigned long calculate_crc=0;
int err=ZIP_OK;
FILE * fin = fopen(filenameinzip,"rb");
unsigned long size_read = 0;
unsigned long total_read = 0;
if (fin==NULL)
{
err = ZIP_ERRNO;
}
if (err == ZIP_OK)
do
{
err = ZIP_OK;
size_read = (int)fread(buf,1,size_buf,fin);
if (size_read < size_buf)
if (feof(fin)==0)
{
printf("error in reading %s\n",filenameinzip);
err = ZIP_ERRNO;
}
if (size_read>0)
calculate_crc = crc32(calculate_crc,buf,size_read);
total_read += size_read;
} while ((err == ZIP_OK) && (size_read>0));
if (fin)
fclose(fin);
*result_crc=calculate_crc;
printf("file %s crc %x\n",filenameinzip,calculate_crc);
return err;
}
int main(argc,argv)
int argc;
char *argv[];
int argc;
char *argv[];
{
int i;
int opt_overwrite=0;
int i;
int opt_overwrite=0;
int opt_compress_level=Z_DEFAULT_COMPRESSION;
int zipfilenamearg = 0;
char filename_try[MAXFILENAME];
char filename_try[MAXFILENAME+16];
int zipok;
int err=0;
int size_buf=0;
void* buf=NULL,
void* buf=NULL;
const char* password=NULL;
do_banner();
if (argc==1)
{
do_help();
exit(0);
do_banner();
if (argc==1)
{
do_help();
return 0;
}
else
{
for (i=1;i<argc;i++)
{
if ((*argv[i])=='-')
{
const char *p=argv[i]+1;
while ((*p)!='\0')
{
char c=*(p++);;
if ((c=='o') || (c=='O'))
opt_overwrite = 1;
}
else
{
for (i=1;i<argc;i++)
{
if ((*argv[i])=='-')
{
const char *p=argv[i]+1;
while ((*p)!='\0')
{
char c=*(p++);;
if ((c=='o') || (c=='O'))
opt_overwrite = 1;
if ((c=='a') || (c=='A'))
opt_overwrite = 2;
if ((c>='0') && (c<='9'))
opt_compress_level = c-'0';
}
}
else
if (zipfilenamearg == 0)
if (((c=='p') || (c=='P')) && (i+1<argc))
{
password=argv[i+1];
i++;
}
}
}
else
if (zipfilenamearg == 0)
zipfilenamearg = i ;
}
}
}
}
size_buf = WRITEBUFFERSIZE;
buf = (void*)malloc(size_buf);
@ -172,16 +230,19 @@ int main(argc,argv)
return ZIP_INTERNALERROR;
}
if (zipfilenamearg==0)
if (zipfilenamearg==0)
zipok=0;
else
{
{
int i,len;
int dot_found=0;
zipok = 1 ;
strcpy(filename_try,argv[zipfilenamearg]);
len=strlen(filename_try);
strncpy(filename_try, argv[zipfilenamearg],MAXFILENAME-1);
/* strncpy doesnt append the trailing NULL, of the string is too long. */
filename_try[ MAXFILENAME ] = '\0';
len=(int)strlen(filename_try);
for (i=0;i<len;i++)
if (filename_try[i]=='.')
dot_found=1;
@ -189,36 +250,52 @@ int main(argc,argv)
if (dot_found==0)
strcat(filename_try,".zip");
if (opt_overwrite==2)
{
/* if the file don't exist, we not append file */
if (check_exist_file(filename_try)==0)
opt_overwrite=1;
}
else
if (opt_overwrite==0)
if (check_exist_file(filename_try)!=0)
{
char rep;
do
{
char answer[128];
printf("The file %s exist. Overwrite ? [y]es, [n]o : ",filename_try);
scanf("%1s",answer);
rep = answer[0] ;
if ((rep>='a') && (rep<='z'))
rep -= 0x20;
}
while ((rep!='Y') && (rep!='N'));
{
char rep=0;
do
{
char answer[128];
printf("The file %s exist. Overwrite ? [y]es, [n]o, [a]ppend : ",filename_try);
scanf("%1s",answer);
rep = answer[0] ;
if ((rep>='a') && (rep<='z'))
rep -= 0x20;
}
while ((rep!='Y') && (rep!='N') && (rep!='A'));
if (rep=='N')
zipok = 0;
}
if (rep=='A')
opt_overwrite = 2;
}
}
if (zipok==1)
{
zipFile zf;
int errclose;
zf = zipOpen(filename_try,0);
#ifdef USEWIN32IOAPI
zlib_filefunc_def ffunc;
fill_win32_filefunc(&ffunc);
zf = zipOpen2(filename_try,(opt_overwrite==2) ? 2 : 0,NULL,&ffunc);
#else
zf = zipOpen(filename_try,(opt_overwrite==2) ? 2 : 0);
#endif
if (zf == NULL)
{
printf("error opening %s\n",filename_try);
err= ZIP_ERRNO;
}
else
else
printf("creating %s\n",filename_try);
for (i=zipfilenamearg+1;(i<argc) && (err==ZIP_OK);i++)
@ -229,19 +306,31 @@ int main(argc,argv)
int size_read;
const char* filenameinzip = argv[i];
zip_fileinfo zi;
unsigned long crcFile=0;
zi.tmz_date.tm_sec = zi.tmz_date.tm_min = zi.tmz_date.tm_hour =
zi.tmz_date.tm_mday = zi.tmz_date.tm_min = zi.tmz_date.tm_year = 0;
zi.tmz_date.tm_sec = zi.tmz_date.tm_min = zi.tmz_date.tm_hour =
zi.tmz_date.tm_mday = zi.tmz_date.tm_mon = zi.tmz_date.tm_year = 0;
zi.dosDate = 0;
zi.internal_fa = 0;
zi.external_fa = 0;
filetime(filenameinzip,&zi.tmz_date,&zi.dosDate);
/*
err = zipOpenNewFileInZip(zf,filenameinzip,&zi,
NULL,0,NULL,0,NULL /* comment*/,
NULL,0,NULL,0,NULL / * comment * /,
(opt_compress_level != 0) ? Z_DEFLATED : 0,
opt_compress_level);
*/
if ((password != NULL) && (err==ZIP_OK))
err = getFileCrc(filenameinzip,buf,size_buf,&crcFile);
err = zipOpenNewFileInZip3(zf,filenameinzip,&zi,
NULL,0,NULL,0,NULL /* comment*/,
(opt_compress_level != 0) ? Z_DEFLATED : 0,
opt_compress_level,0,
/* -MAX_WBITS, DEF_MEM_LEVEL, Z_DEFAULT_STRATEGY, */
-MAX_WBITS, DEF_MEM_LEVEL, Z_DEFAULT_STRATEGY,
password,crcFile);
if (err != ZIP_OK)
printf("error in opening %s in zipfile\n",filenameinzip);
@ -259,7 +348,7 @@ int main(argc,argv)
do
{
err = ZIP_OK;
size_read = fread(buf,1,size_buf,fin);
size_read = (int)fread(buf,1,size_buf,fin);
if (size_read < size_buf)
if (feof(fin)==0)
{
@ -275,15 +364,17 @@ int main(argc,argv)
printf("error in writing %s in the zipfile\n",
filenameinzip);
}
}
} while ((err == ZIP_OK) && (size_read>0));
fclose(fin);
if (fin)
fclose(fin);
if (err<0)
err=ZIP_ERRNO;
else
{
{
err = zipCloseFileInZip(zf);
if (err!=ZIP_OK)
printf("error in closing %s in the zipfile\n",
@ -297,6 +388,5 @@ int main(argc,argv)
}
free(buf);
exit(0);
return 0; /* to avoid warning */
return 0;
}

37
contrib/minizip/readme.txt
View File

@ -1,37 +0,0 @@
UnZip 0.15 additionnal library
This unzip package allow extract file from .ZIP file, compatible with
PKZip 2.04g, WinZip, InfoZip tools and compatible.
Multi volume ZipFile (span) are not supported, and old compression used by old
PKZip 1.x are not supported.
See probdesc.zip from PKWare for specification of .ZIP format.
What is Unzip
The Zlib library support the deflate compression and the creation of gzip (.gz)
file. Zlib is free and small.
The .Zip format, which can contain several compressed files (.gz can containt
only one file) is a very popular format. This is why I've written a package for reading file compressed in Zipfile.
Using Unzip package
You need source of Zlib (get zlib111.zip and read zlib.h).
Get unzlb015.zip and read unzip.h (whith documentation of unzip functions)
The Unzip package is only two file : unzip.h and unzip.c. But it use the Zlib
files.
unztst.c is a simple sample program, which list file in a zipfile and display
README.TXT or FILE_ID.DIZ (if these files are found).
miniunz.c is a mini unzip program.
I'm also currenlyt writing a zipping portion (zip.h, zip.c and test with minizip.c)
Please email me for feedback.
I hope my source is compatible with Unix system, but I need your help for be sure
Latest revision : Mar 04th, 1998
Check http://www.winimage.com/zLibDll/unzip.html for up to date info.

1723
contrib/minizip/unzip.c
View File

File diff suppressed because it is too large Load Diff

15
contrib/minizip/unzip.def
View File

@ -1,15 +0,0 @@
unzOpen @61
unzClose @62
unzGetGlobalInfo @63
unzGetCurrentFileInfo @64
unzGoToFirstFile @65
unzGoToNextFile @66
unzOpenCurrentFile @67
unzReadCurrentFile @68
unztell @70
unzeof @71
unzCloseCurrentFile @72
unzGetGlobalComment @73
unzStringFileNameCompare @74
unzLocateFile @75
unzGetLocalExtrafield @76

191
contrib/minizip/unzip.h
View File

@ -1,15 +1,14 @@
/* unzip.h -- IO for uncompress .zip files using zlib
Version 0.15 beta, Mar 19th, 1998,
/* unzip.h -- IO for uncompress .zip files using zlib
Version 0.21, March 10th, 2003
Copyright (C) 1998 Gilles Vollant
Copyright (C) 1998-2003 Gilles Vollant
This unzip package allow extract file from .ZIP file, compatible with PKZip 2.04g
WinZip, InfoZip tools and compatible.
Encryption and multi volume ZipFile (span) are not supported.
Old compressions used by old PKZip 1.x are not supported
THIS IS AN ALPHA VERSION. AT THIS STAGE OF DEVELOPPEMENT, SOMES API OR STRUCTURE
CAN CHANGE IN FUTURE VERSION !!
I WAIT FEEDBACK at mail info@winimage.com
Visit also http://www.winimage.com/zLibDll/unzip.htm for evolution
@ -33,10 +32,13 @@
*/
/* for more info about .ZIP format, see
ftp://ftp.cdrom.com/pub/infozip/doc/appnote-970311-iz.zip
/* for more info about .ZIP format, see
http://www.info-zip.org/pub/infozip/doc/appnote-981119-iz.zip
http://www.info-zip.org/pub/infozip/doc/
PkWare has also a specification at :
ftp://ftp.pkware.com/probdesc.zip */
ftp://ftp.pkware.com/probdesc.zip
*/
#ifndef _unz_H
#define _unz_H
@ -49,43 +51,47 @@ extern "C" {
#include "zlib.h"
#endif
#ifndef _ZLIBIOAPI_H
#include "ioapi.h"
#endif
#if defined(STRICTUNZIP) || defined(STRICTZIPUNZIP)
/* like the STRICT of WIN32, we define a pointer that cannot be converted
from (void*) without cast */
typedef struct TagunzFile__ { int unused; } unzFile__;
typedef struct TagunzFile__ { int unused; } unzFile__;
typedef unzFile__ *unzFile;
#else
typedef voidp unzFile;
#endif
#define UNZ_OK (0)
#define UNZ_END_OF_LIST_OF_FILE (-100)
#define UNZ_ERRNO (Z_ERRNO)
#define UNZ_EOF (0)
#define UNZ_OK (0)
#define UNZ_END_OF_LIST_OF_FILE (-100)
#define UNZ_ERRNO (Z_ERRNO)
#define UNZ_EOF (0)
#define UNZ_PARAMERROR (-102)
#define UNZ_BADZIPFILE (-103)
#define UNZ_INTERNALERROR (-104)
#define UNZ_CRCERROR (-105)
/* tm_unz contain date/time info */
typedef struct tm_unz_s
typedef struct tm_unz_s
{
uInt tm_sec; /* seconds after the minute - [0,59] */
uInt tm_min; /* minutes after the hour - [0,59] */
uInt tm_hour; /* hours since midnight - [0,23] */
uInt tm_mday; /* day of the month - [1,31] */
uInt tm_mon; /* months since January - [0,11] */
uInt tm_year; /* years - [1980..2044] */
uInt tm_sec; /* seconds after the minute - [0,59] */
uInt tm_min; /* minutes after the hour - [0,59] */
uInt tm_hour; /* hours since midnight - [0,23] */
uInt tm_mday; /* day of the month - [1,31] */
uInt tm_mon; /* months since January - [0,11] */
uInt tm_year; /* years - [1980..2044] */
} tm_unz;
/* unz_global_info structure contain global data about the ZIPfile
These data comes from the end of central dir */
typedef struct unz_global_info_s
{
uLong number_entry; /* total number of entries in
the central dir on this disk */
uLong size_comment; /* size of the global comment of the zipfile */
uLong number_entry; /* total number of entries in
the central dir on this disk */
uLong size_comment; /* size of the global comment of the zipfile */
} unz_global_info;
@ -98,8 +104,8 @@ typedef struct unz_file_info_s
uLong compression_method; /* compression method 2 bytes */
uLong dosDate; /* last mod file date in Dos fmt 4 bytes */
uLong crc; /* crc-32 4 bytes */
uLong compressed_size; /* compressed size 4 bytes */
uLong uncompressed_size; /* uncompressed size 4 bytes */
uLong compressed_size; /* compressed size 4 bytes */
uLong uncompressed_size; /* uncompressed size 4 bytes */
uLong size_filename; /* filename length 2 bytes */
uLong size_file_extra; /* extra field length 2 bytes */
uLong size_file_comment; /* file comment length 2 bytes */
@ -112,27 +118,34 @@ typedef struct unz_file_info_s
} unz_file_info;
extern int ZEXPORT unzStringFileNameCompare OF ((const char* fileName1,
const char* fileName2,
int iCaseSensitivity));
const char* fileName2,
int iCaseSensitivity));
/*
Compare two filename (fileName1,fileName2).
If iCaseSenisivity = 1, comparision is case sensitivity (like strcmp)
If iCaseSenisivity = 2, comparision is not case sensitivity (like strcmpi
or strcasecmp)
or strcasecmp)
If iCaseSenisivity = 0, case sensitivity is defaut of your operating system
(like 1 on Unix, 2 on Windows)
(like 1 on Unix, 2 on Windows)
*/
extern unzFile ZEXPORT unzOpen OF((const char *path));
/*
Open a Zip file. path contain the full pathname (by example,
on a Windows NT computer "c:\\zlib\\zlib111.zip" or on an Unix computer
"zlib/zlib111.zip".
If the zipfile cannot be opened (file don't exist or in not valid), the
return value is NULL.
on a Windows XP computer "c:\\zlib\\zlib113.zip" or on an Unix computer
"zlib/zlib113.zip".
If the zipfile cannot be opened (file don't exist or in not valid), the
return value is NULL.
Else, the return value is a unzFile Handle, usable with other function
of this unzip package.
of this unzip package.
*/
extern unzFile ZEXPORT unzOpen2 OF((const char *path,
zlib_filefunc_def* pzlib_filefunc_def));
/*
Open a Zip file, like unzOpen, but provide a set of file low level API
for read/write the zip file (see ioapi.h)
*/
extern int ZEXPORT unzClose OF((unzFile file));
@ -143,7 +156,7 @@ extern int ZEXPORT unzClose OF((unzFile file));
return UNZ_OK if there is no problem. */
extern int ZEXPORT unzGetGlobalInfo OF((unzFile file,
unz_global_info *pglobal_info));
unz_global_info *pglobal_info));
/*
Write info about the ZipFile in the *pglobal_info structure.
No preparation of the structure is needed
@ -151,8 +164,8 @@ extern int ZEXPORT unzGetGlobalInfo OF((unzFile file,
extern int ZEXPORT unzGetGlobalComment OF((unzFile file,
char *szComment,
uLong uSizeBuf));
char *szComment,
uLong uSizeBuf));
/*
Get the global comment string of the ZipFile, in the szComment buffer.
uSizeBuf is the size of the szComment buffer.
@ -176,9 +189,9 @@ extern int ZEXPORT unzGoToNextFile OF((unzFile file));
return UNZ_END_OF_LIST_OF_FILE if the actual file was the latest.
*/
extern int ZEXPORT unzLocateFile OF((unzFile file,
const char *szFileName,
int iCaseSensitivity));
extern int ZEXPORT unzLocateFile OF((unzFile file,
const char *szFileName,
int iCaseSensitivity));
/*
Try locate the file szFileName in the zipfile.
For the iCaseSensitivity signification, see unzStringFileNameCompare
@ -189,25 +202,44 @@ extern int ZEXPORT unzLocateFile OF((unzFile file,
*/
/* ****************************************** */
/* Ryan supplied functions */
/* unz_file_info contain information about a file in the zipfile */
typedef struct unz_file_pos_s
{
uLong pos_in_zip_directory; /* offset in zip file directory */
uLong num_of_file; /* # of file */
} unz_file_pos;
extern int ZEXPORT unzGetFilePos(
unzFile file,
unz_file_pos* file_pos);
extern int ZEXPORT unzGoToFilePos(
unzFile file,
unz_file_pos* file_pos);
/* ****************************************** */
extern int ZEXPORT unzGetCurrentFileInfo OF((unzFile file,
unz_file_info *pfile_info,
char *szFileName,
uLong fileNameBufferSize,
void *extraField,
uLong extraFieldBufferSize,
char *szComment,
uLong commentBufferSize));
unz_file_info *pfile_info,
char *szFileName,
uLong fileNameBufferSize,
void *extraField,
uLong extraFieldBufferSize,
char *szComment,
uLong commentBufferSize));
/*
Get Info about the current file
if pfile_info!=NULL, the *pfile_info structure will contain somes info about
the current file
the current file
if szFileName!=NULL, the filemane string will be copied in szFileName
(fileNameBufferSize is the size of the buffer)
(fileNameBufferSize is the size of the buffer)
if extraField!=NULL, the extra field information will be copied in extraField
(extraFieldBufferSize is the size of the buffer).
This is the Central-header version of the extra field
(extraFieldBufferSize is the size of the buffer).
This is the Central-header version of the extra field
if szComment!=NULL, the comment string of the file will be copied in szComment
(commentBufferSize is the size of the buffer)
(commentBufferSize is the size of the buffer)
*/
/***************************************************************************/
@ -221,16 +253,51 @@ extern int ZEXPORT unzOpenCurrentFile OF((unzFile file));
If there is no error, the return value is UNZ_OK.
*/
extern int ZEXPORT unzOpenCurrentFilePassword OF((unzFile file,
const char* password));
/*
Open for reading data the current file in the zipfile.
password is a crypting password
If there is no error, the return value is UNZ_OK.
*/
extern int ZEXPORT unzOpenCurrentFile2 OF((unzFile file,
int* method,
int* level,
int raw));
/*
Same than unzOpenCurrentFile, but open for read raw the file (not uncompress)
if raw==1
*method will receive method of compression, *level will receive level of
compression
note : you can set level parameter as NULL (if you did not want known level,
but you CANNOT set method parameter as NULL
*/
extern int ZEXPORT unzOpenCurrentFile3 OF((unzFile file,
int* method,
int* level,
int raw,
const char* password));
/*
Same than unzOpenCurrentFile, but open for read raw the file (not uncompress)
if raw==1
*method will receive method of compression, *level will receive level of
compression
note : you can set level parameter as NULL (if you did not want known level,
but you CANNOT set method parameter as NULL
*/
extern int ZEXPORT unzCloseCurrentFile OF((unzFile file));
/*
Close the file in zip opened with unzOpenCurrentFile
Return UNZ_CRCERROR if all the file was read but the CRC is not good
*/
extern int ZEXPORT unzReadCurrentFile OF((unzFile file,
voidp buf,
unsigned len));
extern int ZEXPORT unzReadCurrentFile OF((unzFile file,
voidp buf,
unsigned len));
/*
Read bytes from the current file (opened by unzOpenCurrentFile)
buf contain buffer where data must be copied
@ -249,12 +316,12 @@ extern z_off_t ZEXPORT unztell OF((unzFile file));
extern int ZEXPORT unzeof OF((unzFile file));
/*
return 1 if the end of file was reached, 0 elsewhere
return 1 if the end of file was reached, 0 elsewhere
*/
extern int ZEXPORT unzGetLocalExtrafield OF((unzFile file,
voidp buf,
unsigned len));
voidp buf,
unsigned len));
/*
Read extra field from the current file (opened by unzOpenCurrentFile)
This is the local-header version of the extra field (sometimes, there is
@ -263,9 +330,9 @@ extern int ZEXPORT unzGetLocalExtrafield OF((unzFile file,
if buf==NULL, it return the size of the local extra field
if buf!=NULL, len is the size of the buffer, the extra header is copied in
buf.
the return value is the number of bytes copied in buf, or (if <0)
the error code
buf.
the return value is the number of bytes copied in buf, or (if <0)
the error code
*/
#ifdef __cplusplus

662
contrib/minizip/zip.c
View File

@ -1,5 +1,5 @@
/* zip.c -- IO on .zip files using zlib
Version 0.15 beta, Mar 19th, 1998,
/* zip.c -- IO on .zip files using zlib
Version 0.21, March 10th, 2003
Read zip.h for more info
*/
@ -8,6 +8,7 @@
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <time.h>
#include "zlib.h"
#include "zip.h"
@ -66,8 +67,15 @@
#define SEEK_SET 0
#endif
#ifndef DEF_MEM_LEVEL
#if MAX_MEM_LEVEL >= 8
# define DEF_MEM_LEVEL 8
#else
# define DEF_MEM_LEVEL MAX_MEM_LEVEL
#endif
#endif
const char zip_copyright[] =
" zip 0.15 Copyright 1998 Gilles Vollant ";
" zip 0.21 Copyright 1998-2003 Gilles Vollant - http://www.winimage.com/zLibDll";
#define SIZEDATA_INDATABLOCK (4096-(4*4))
@ -99,33 +107,49 @@ typedef struct linkedlist_data_s
typedef struct
{
z_stream stream; /* zLib stream structure for inflate */
z_stream stream; /* zLib stream structure for inflate */
int stream_initialised; /* 1 is stream is initialised */
uInt pos_in_buffered_data; /* last written byte in buffered_data */
uLong pos_local_header; /* offset of the local header of the file
uLong pos_local_header; /* offset of the local header of the file
currenty writing */
char* central_header; /* central header data for the current file */
uLong size_centralheader; /* size of the central header for cur file */
uLong flag; /* flag of the file currently writing */
int method; /* compression method of file currenty wr.*/
int raw; /* 1 for directly writing raw data */
Byte buffered_data[Z_BUFSIZE];/* buffer contain compressed data to be writ*/
uLong dosDate;
uLong crc32;
int encrypt;
#ifndef NOCRPYT
unsigned long keys[3]; /* keys defining the pseudo-random sequence */
const unsigned long* pcrc_32_tab;
int crypt_header_size;
#endif
} curfile_info;
typedef struct
{
FILE * filezip;
zlib_filefunc_def z_filefunc;
voidpf filestream; /* io structore of the zipfile */
linkedlist_data central_dir;/* datablock with central dir in construction*/
int in_opened_file_inzip; /* 1 if a file in the zip is currently writ.*/
curfile_info ci; /* info on the file curretly writing */
uLong begin_pos; /* position of the beginning of the zipfile */
uLong add_position_when_writting_offset;
uLong number_entry;
} zip_internal;
#ifndef NOCRPYT
#define INCLUDECRYPTINGCODE_IFCRYPTALLOWED
#include "crypt.h"
#endif
local linkedlist_datablock_internal* allocate_new_datablock()
{
linkedlist_datablock_internal* ldi;
@ -166,7 +190,7 @@ local void free_linkedlist(ll)
local int add_data_in_datablock(ll,buf,len)
linkedlist_data* ll;
linkedlist_data* ll;
const void* buf;
uLong len;
{
@ -220,32 +244,20 @@ local int add_data_in_datablock(ll,buf,len)
}
local int write_datablock(fout,ll)
FILE * fout;
linkedlist_data* ll;
{
linkedlist_datablock_internal* ldi;
ldi = ll->first_block;
while (ldi!=NULL)
{
if (ldi->filled_in_this_block > 0)
if (fwrite(ldi->data,(uInt)ldi->filled_in_this_block,1,fout)!=1)
return ZIP_ERRNO;
ldi = ldi->next_datablock;
}
return ZIP_OK;
}
/****************************************************************************/
#ifndef NO_ADDFILEINEXISTINGZIP
/* ===========================================================================
Outputs a long in LSB order to the given file
Inputs a long in LSB order to the given file
nbByte == 1, 2 or 4 (byte, short or long)
*/
local int ziplocal_putValue OF((FILE *file, uLong x, int nbByte));
local int ziplocal_putValue (file, x, nbByte)
FILE *file;
local int ziplocal_putValue OF((const zlib_filefunc_def* pzlib_filefunc_def,
voidpf filestream, uLong x, int nbByte));
local int ziplocal_putValue (pzlib_filefunc_def, filestream, x, nbByte)
const zlib_filefunc_def* pzlib_filefunc_def;
voidpf filestream;
uLong x;
int nbByte;
{
@ -255,7 +267,7 @@ local int ziplocal_putValue (file, x, nbByte)
buf[n] = (unsigned char)(x & 0xff);
x >>= 8;
}
if (fwrite(buf,nbByte,1,file)!=1)
if (ZWRITE(*pzlib_filefunc_def,filestream,buf,nbByte)!=(uLong)nbByte)
return ZIP_ERRNO;
else
return ZIP_OK;
@ -278,7 +290,7 @@ local void ziplocal_putValue_inmemory (dest, x, nbByte)
local uLong ziplocal_TmzDateToDosDate(ptm,dosDate)
tm_zip* ptm;
const tm_zip* ptm;
uLong dosDate;
{
uLong year = (uLong)ptm->tm_year;
@ -294,38 +306,348 @@ local uLong ziplocal_TmzDateToDosDate(ptm,dosDate)
/****************************************************************************/
extern zipFile ZEXPORT zipOpen (pathname, append)
local int ziplocal_getByte OF((
const zlib_filefunc_def* pzlib_filefunc_def,
voidpf filestream,
int *pi));
local int ziplocal_getByte(pzlib_filefunc_def,filestream,pi)
const zlib_filefunc_def* pzlib_filefunc_def;
voidpf filestream;
int *pi;
{
unsigned char c;
int err = (int)ZREAD(*pzlib_filefunc_def,filestream,&c,1);
if (err==1)
{
*pi = (int)c;
return ZIP_OK;
}
else
{
if (ZERROR(*pzlib_filefunc_def,filestream))
return ZIP_ERRNO;
else
return ZIP_EOF;
}
}
/* ===========================================================================
Reads a long in LSB order from the given gz_stream. Sets
*/
local int ziplocal_getShort OF((
const zlib_filefunc_def* pzlib_filefunc_def,
voidpf filestream,
uLong *pX));
local int ziplocal_getShort (pzlib_filefunc_def,filestream,pX)
const zlib_filefunc_def* pzlib_filefunc_def;
voidpf filestream;
uLong *pX;
{
uLong x ;
int i;
int err;
err = ziplocal_getByte(pzlib_filefunc_def,filestream,&i);
x = (uLong)i;
if (err==ZIP_OK)
err = ziplocal_getByte(pzlib_filefunc_def,filestream,&i);
x += ((uLong)i)<<8;
if (err==ZIP_OK)
*pX = x;
else
*pX = 0;
return err;
}
local int ziplocal_getLong OF((
const zlib_filefunc_def* pzlib_filefunc_def,
voidpf filestream,
uLong *pX));
local int ziplocal_getLong (pzlib_filefunc_def,filestream,pX)
const zlib_filefunc_def* pzlib_filefunc_def;
voidpf filestream;
uLong *pX;
{
uLong x ;
int i;
int err;
err = ziplocal_getByte(pzlib_filefunc_def,filestream,&i);
x = (uLong)i;
if (err==ZIP_OK)
err = ziplocal_getByte(pzlib_filefunc_def,filestream,&i);
x += ((uLong)i)<<8;
if (err==ZIP_OK)
err = ziplocal_getByte(pzlib_filefunc_def,filestream,&i);
x += ((uLong)i)<<16;
if (err==ZIP_OK)
err = ziplocal_getByte(pzlib_filefunc_def,filestream,&i);
x += ((uLong)i)<<24;
if (err==ZIP_OK)
*pX = x;
else
*pX = 0;
return err;
}
#ifndef BUFREADCOMMENT
#define BUFREADCOMMENT (0x400)
#endif
/*
Locate the Central directory of a zipfile (at the end, just before
the global comment)
*/
local uLong ziplocal_SearchCentralDir OF((
const zlib_filefunc_def* pzlib_filefunc_def,
voidpf filestream));
local uLong ziplocal_SearchCentralDir(pzlib_filefunc_def,filestream)
const zlib_filefunc_def* pzlib_filefunc_def;
voidpf filestream;
{
unsigned char* buf;
uLong uSizeFile;
uLong uBackRead;
uLong uMaxBack=0xffff; /* maximum size of global comment */
uLong uPosFound=0;
if (ZSEEK(*pzlib_filefunc_def,filestream,0,ZLIB_FILEFUNC_SEEK_END) != 0)
return 0;
uSizeFile = ZTELL(*pzlib_filefunc_def,filestream);
if (uMaxBack>uSizeFile)
uMaxBack = uSizeFile;
buf = (unsigned char*)ALLOC(BUFREADCOMMENT+4);
if (buf==NULL)
return 0;
uBackRead = 4;
while (uBackRead<uMaxBack)
{
uLong uReadSize,uReadPos ;
int i;
if (uBackRead+BUFREADCOMMENT>uMaxBack)
uBackRead = uMaxBack;
else
uBackRead+=BUFREADCOMMENT;
uReadPos = uSizeFile-uBackRead ;
uReadSize = ((BUFREADCOMMENT+4) < (uSizeFile-uReadPos)) ?
(BUFREADCOMMENT+4) : (uSizeFile-uReadPos);
if (ZSEEK(*pzlib_filefunc_def,filestream,uReadPos,ZLIB_FILEFUNC_SEEK_SET)!=0)
break;
if (ZREAD(*pzlib_filefunc_def,filestream,buf,uReadSize)!=uReadSize)
break;
for (i=(int)uReadSize-3; (i--)>0;)
if (((*(buf+i))==0x50) && ((*(buf+i+1))==0x4b) &&
((*(buf+i+2))==0x05) && ((*(buf+i+3))==0x06))
{
uPosFound = uReadPos+i;
break;
}
if (uPosFound!=0)
break;
}
TRYFREE(buf);
return uPosFound;
}
#endif /* !NO_ADDFILEINEXISTINGZIP*/
/************************************************************/
extern zipFile ZEXPORT zipOpen2 (pathname, append, globalcomment, pzlib_filefunc_def)
const char *pathname;
int append;
zipcharpc* globalcomment;
zlib_filefunc_def* pzlib_filefunc_def;
{
zip_internal ziinit;
zip_internal* zi;
int err=ZIP_OK;
ziinit.filezip = fopen(pathname,(append == 0) ? "wb" : "ab");
if (ziinit.filezip == NULL)
if (pzlib_filefunc_def==NULL)
fill_fopen_filefunc(&ziinit.z_filefunc);
else
ziinit.z_filefunc = *pzlib_filefunc_def;
ziinit.filestream = (*(ziinit.z_filefunc.zopen_file))
(ziinit.z_filefunc.opaque,
pathname,
(append == APPEND_STATUS_CREATE) ?
(ZLIB_FILEFUNC_MODE_READ | ZLIB_FILEFUNC_MODE_WRITE | ZLIB_FILEFUNC_MODE_CREATE) :
(ZLIB_FILEFUNC_MODE_READ | ZLIB_FILEFUNC_MODE_WRITE | ZLIB_FILEFUNC_MODE_EXISTING));
if (ziinit.filestream == NULL)
return NULL;
ziinit.begin_pos = ftell(ziinit.filezip);
ziinit.begin_pos = ZTELL(ziinit.z_filefunc,ziinit.filestream);
ziinit.in_opened_file_inzip = 0;
ziinit.ci.stream_initialised = 0;
ziinit.number_entry = 0;
ziinit.add_position_when_writting_offset = 0;
init_linkedlist(&(ziinit.central_dir));
zi = (zip_internal*)ALLOC(sizeof(zip_internal));
if (zi==NULL)
{
fclose(ziinit.filezip);
ZCLOSE(ziinit.z_filefunc,ziinit.filestream);
return NULL;
}
*zi = ziinit;
return (zipFile)zi;
/* now we add file in a zipfile */
#ifndef NO_ADDFILEINEXISTINGZIP
if (append == APPEND_STATUS_ADDINZIP)
{
uLong byte_before_the_zipfile;/* byte before the zipfile, (>0 for sfx)*/
uLong size_central_dir; /* size of the central directory */
uLong offset_central_dir; /* offset of start of central directory */
uLong central_pos,uL;
uLong number_disk; /* number of the current dist, used for
spaning ZIP, unsupported, always 0*/
uLong number_disk_with_CD; /* number the the disk with central dir, used
for spaning ZIP, unsupported, always 0*/
uLong number_entry;
uLong number_entry_CD; /* total number of entries in
the central dir
(same than number_entry on nospan) */
uLong size_comment;
central_pos = ziplocal_SearchCentralDir(&ziinit.z_filefunc,ziinit.filestream);
if (central_pos==0)
err=ZIP_ERRNO;
if (ZSEEK(ziinit.z_filefunc, ziinit.filestream,
central_pos,ZLIB_FILEFUNC_SEEK_SET)!=0)
err=ZIP_ERRNO;
/* the signature, already checked */
if (ziplocal_getLong(&ziinit.z_filefunc, ziinit.filestream,&uL)!=ZIP_OK)
err=ZIP_ERRNO;
/* number of this disk */
if (ziplocal_getShort(&ziinit.z_filefunc, ziinit.filestream,&number_disk)!=ZIP_OK)
err=ZIP_ERRNO;
/* number of the disk with the start of the central directory */
if (ziplocal_getShort(&ziinit.z_filefunc, ziinit.filestream,&number_disk_with_CD)!=ZIP_OK)
err=ZIP_ERRNO;
/* total number of entries in the central dir on this disk */
if (ziplocal_getShort(&ziinit.z_filefunc, ziinit.filestream,&number_entry)!=ZIP_OK)
err=ZIP_ERRNO;
/* total number of entries in the central dir */
if (ziplocal_getShort(&ziinit.z_filefunc, ziinit.filestream,&number_entry_CD)!=ZIP_OK)
err=ZIP_ERRNO;
if ((number_entry_CD!=number_entry) ||
(number_disk_with_CD!=0) ||
(number_disk!=0))
err=ZIP_BADZIPFILE;
/* size of the central directory */
if (ziplocal_getLong(&ziinit.z_filefunc, ziinit.filestream,&size_central_dir)!=ZIP_OK)
err=ZIP_ERRNO;
/* offset of start of central directory with respect to the
starting disk number */
if (ziplocal_getLong(&ziinit.z_filefunc, ziinit.filestream,&offset_central_dir)!=ZIP_OK)
err=ZIP_ERRNO;
/* zipfile comment length */
if (ziplocal_getShort(&ziinit.z_filefunc, ziinit.filestream,&size_comment)!=ZIP_OK)
err=ZIP_ERRNO;
if ((central_pos<offset_central_dir+size_central_dir) &&
(err==ZIP_OK))
err=ZIP_BADZIPFILE;
if (err!=ZIP_OK)
{
ZCLOSE(ziinit.z_filefunc, ziinit.filestream);
return NULL;
}
byte_before_the_zipfile = central_pos -
(offset_central_dir+size_central_dir);
ziinit.add_position_when_writting_offset = byte_before_the_zipfile ;
{
uLong size_central_dir_to_read = size_central_dir;
size_t buf_size = SIZEDATA_INDATABLOCK;
void* buf_read = (void*)ALLOC(buf_size);
if (ZSEEK(ziinit.z_filefunc, ziinit.filestream,
offset_central_dir + byte_before_the_zipfile,
ZLIB_FILEFUNC_SEEK_SET) != 0)
err=ZIP_ERRNO;
while ((size_central_dir_to_read>0) && (err==ZIP_OK))
{
uLong read_this = SIZEDATA_INDATABLOCK;
if (read_this > size_central_dir_to_read)
read_this = size_central_dir_to_read;
if (ZREAD(ziinit.z_filefunc, ziinit.filestream,buf_read,read_this) != read_this)
err=ZIP_ERRNO;
if (err==ZIP_OK)
err = add_data_in_datablock(&ziinit.central_dir,buf_read,
(uLong)read_this);
size_central_dir_to_read-=read_this;
}
TRYFREE(buf_read);
}
ziinit.begin_pos = byte_before_the_zipfile;
ziinit.number_entry = number_entry_CD;
if (ZSEEK(ziinit.z_filefunc, ziinit.filestream,
offset_central_dir+byte_before_the_zipfile,ZLIB_FILEFUNC_SEEK_SET)!=0)
err=ZIP_ERRNO;
}
#endif /* !NO_ADDFILEINEXISTINGZIP*/
if (err != ZIP_OK)
{
TRYFREE(zi);
return NULL;
}
else
{
*zi = ziinit;
return (zipFile)zi;
}
}
extern int ZEXPORT zipOpenNewFileInZip (file, filename, zipfi,
extrafield_local, size_extrafield_local,
extrafield_global, size_extrafield_global,
comment, method, level)
extern zipFile ZEXPORT zipOpen (pathname, append)
const char *pathname;
int append;
{
return zipOpen2(pathname,append,NULL,NULL);
}
extern int ZEXPORT zipOpenNewFileInZip3 (file, filename, zipfi,
extrafield_local, size_extrafield_local,
extrafield_global, size_extrafield_global,
comment, method, level, raw,
windowBits, memLevel, strategy,
password, crcForCrypting)
zipFile file;
const char* filename;
const zip_fileinfo* zipfi;
@ -336,6 +658,12 @@ extern int ZEXPORT zipOpenNewFileInZip (file, filename, zipfi,
const char* comment;
int method;
int level;
int raw;
int windowBits;
int memLevel;
int strategy;
const char* password;
uLong crcForCrypting;
{
zip_internal* zi;
uInt size_filename;
@ -343,6 +671,11 @@ extern int ZEXPORT zipOpenNewFileInZip (file, filename, zipfi,
uInt i;
int err = ZIP_OK;
#ifdef NOCRPYT
if (password != NULL)
return ZIP_PARAMERROR;
#endif
if (file == NULL)
return ZIP_PARAMERROR;
if ((method!=0) && (method!=Z_DEFLATED))
@ -384,13 +717,17 @@ extern int ZEXPORT zipOpenNewFileInZip (file, filename, zipfi,
zi->ci.flag |= 4;
if ((level==1))
zi->ci.flag |= 6;
if (password != NULL)
zi->ci.flag |= 1;
zi->ci.crc32 = 0;
zi->ci.method = method;
zi->ci.encrypt = 0;
zi->ci.stream_initialised = 0;
zi->ci.pos_in_buffered_data = 0;
zi->ci.pos_local_header = ftell(zi->filezip);
zi->ci.size_centralheader = SIZECENTRALHEADER + size_filename +
zi->ci.raw = raw;
zi->ci.pos_local_header = ZTELL(zi->z_filefunc,zi->filestream) ;
zi->ci.size_centralheader = SIZECENTRALHEADER + size_filename +
size_extrafield_global + size_comment;
zi->ci.central_header = (char*)ALLOC((uInt)zi->ci.size_centralheader);
@ -410,16 +747,16 @@ extern int ZEXPORT zipOpenNewFileInZip (file, filename, zipfi,
ziplocal_putValue_inmemory(zi->ci.central_header+34,(uLong)0,2); /*disk nm start*/
if (zipfi==NULL)
ziplocal_putValue_inmemory(zi->ci.central_header+36,(uLong)0,2);
ziplocal_putValue_inmemory(zi->ci.central_header+36,(uLong)0,2);
else
ziplocal_putValue_inmemory(zi->ci.central_header+36,(uLong)zipfi->internal_fa,2);
ziplocal_putValue_inmemory(zi->ci.central_header+36,(uLong)zipfi->internal_fa,2);
if (zipfi==NULL)
ziplocal_putValue_inmemory(zi->ci.central_header+38,(uLong)0,4);
ziplocal_putValue_inmemory(zi->ci.central_header+38,(uLong)0,4);
else
ziplocal_putValue_inmemory(zi->ci.central_header+38,(uLong)zipfi->external_fa,4);
ziplocal_putValue_inmemory(zi->ci.central_header+42,(uLong)zi->ci.pos_local_header,4);
ziplocal_putValue_inmemory(zi->ci.central_header+42,(uLong)zi->ci.pos_local_header- zi->add_position_when_writting_offset,4);
for (i=0;i<size_filename;i++)
*(zi->ci.central_header+SIZECENTRALHEADER+i) = *(filename+i);
@ -430,44 +767,44 @@ extern int ZEXPORT zipOpenNewFileInZip (file, filename, zipfi,
for (i=0;i<size_comment;i++)
*(zi->ci.central_header+SIZECENTRALHEADER+size_filename+
size_extrafield_global+i) = *(filename+i);
size_extrafield_global+i) = *(comment+i);
if (zi->ci.central_header == NULL)
return ZIP_INTERNALERROR;
/* write the local header */
err = ziplocal_putValue(zi->filezip,(uLong)LOCALHEADERMAGIC,4);
err = ziplocal_putValue(&zi->z_filefunc,zi->filestream,(uLong)LOCALHEADERMAGIC,4);
if (err==ZIP_OK)
err = ziplocal_putValue(zi->filezip,(uLong)20,2);/* version needed to extract */
err = ziplocal_putValue(&zi->z_filefunc,zi->filestream,(uLong)20,2);/* version needed to extract */
if (err==ZIP_OK)
err = ziplocal_putValue(zi->filezip,(uLong)zi->ci.flag,2);
err = ziplocal_putValue(&zi->z_filefunc,zi->filestream,(uLong)zi->ci.flag,2);
if (err==ZIP_OK)
err = ziplocal_putValue(zi->filezip,(uLong)zi->ci.method,2);
err = ziplocal_putValue(&zi->z_filefunc,zi->filestream,(uLong)zi->ci.method,2);
if (err==ZIP_OK)
err = ziplocal_putValue(zi->filezip,(uLong)zi->ci.dosDate,4);
err = ziplocal_putValue(&zi->z_filefunc,zi->filestream,(uLong)zi->ci.dosDate,4);
if (err==ZIP_OK)
err = ziplocal_putValue(zi->filezip,(uLong)0,4); /* crc 32, unknown */
err = ziplocal_putValue(&zi->z_filefunc,zi->filestream,(uLong)0,4); /* crc 32, unknown */
if (err==ZIP_OK)
err = ziplocal_putValue(zi->filezip,(uLong)0,4); /* compressed size, unknown */
err = ziplocal_putValue(&zi->z_filefunc,zi->filestream,(uLong)0,4); /* compressed size, unknown */
if (err==ZIP_OK)
err = ziplocal_putValue(zi->filezip,(uLong)0,4); /* uncompressed size, unknown */
err = ziplocal_putValue(&zi->z_filefunc,zi->filestream,(uLong)0,4); /* uncompressed size, unknown */
if (err==ZIP_OK)
err = ziplocal_putValue(zi->filezip,(uLong)size_filename,2);
err = ziplocal_putValue(&zi->z_filefunc,zi->filestream,(uLong)size_filename,2);
if (err==ZIP_OK)
err = ziplocal_putValue(zi->filezip,(uLong)size_extrafield_local,2);
err = ziplocal_putValue(&zi->z_filefunc,zi->filestream,(uLong)size_extrafield_local,2);
if ((err==ZIP_OK) && (size_filename>0))
if (fwrite(filename,(uInt)size_filename,1,zi->filezip)!=1)
if (ZWRITE(zi->z_filefunc,zi->filestream,filename,size_filename)!=size_filename)
err = ZIP_ERRNO;
if ((err==ZIP_OK) && (size_extrafield_local>0))
if (fwrite(extrafield_local,(uInt)size_extrafield_local,1,zi->filezip)
!=1)
if (ZWRITE(zi->z_filefunc,zi->filestream,extrafield_local,size_extrafield_local)
!=size_extrafield_local)
err = ZIP_ERRNO;
zi->ci.stream.avail_in = (uInt)0;
@ -476,17 +813,38 @@ extern int ZEXPORT zipOpenNewFileInZip (file, filename, zipfi,
zi->ci.stream.total_in = 0;
zi->ci.stream.total_out = 0;
if ((err==ZIP_OK) && (zi->ci.method == Z_DEFLATED))
if ((err==ZIP_OK) && (zi->ci.method == Z_DEFLATED) && (!zi->ci.raw))
{
zi->ci.stream.zalloc = (alloc_func)0;
zi->ci.stream.zfree = (free_func)0;
zi->ci.stream.opaque = (voidpf)0;
if (windowBits>0)
windowBits = -windowBits;
err = deflateInit2(&zi->ci.stream, level,
Z_DEFLATED, -MAX_WBITS, DEF_MEM_LEVEL, 0);
Z_DEFLATED, windowBits, memLevel, strategy);
if (err==Z_OK)
zi->ci.stream_initialised = 1;
#ifndef NOCRPYT
zi->ci.crypt_header_size = 0;
if ((err==Z_OK) && (password != NULL))
{
unsigned char bufHead[RAND_HEAD_LEN];
unsigned int sizeHead;
zi->ci.encrypt = 1;
zi->ci.pcrc_32_tab = get_crc_table();
/*init_keys(password,zi->ci.keys,zi->ci.pcrc_32_tab);*/
sizeHead=crypthead(password,bufHead,RAND_HEAD_LEN,zi->ci.keys,zi->ci.pcrc_32_tab,crcForCrypting);
zi->ci.crypt_header_size = sizeHead;
if (ZWRITE(zi->z_filefunc,zi->filestream,bufHead,sizeHead) != sizeHead)
err = ZIP_ERRNO;
}
#endif
}
@ -495,9 +853,74 @@ extern int ZEXPORT zipOpenNewFileInZip (file, filename, zipfi,
return err;
}
extern int ZEXPORT zipOpenNewFileInZip2(file, filename, zipfi,
extrafield_local, size_extrafield_local,
extrafield_global, size_extrafield_global,
comment, method, level, raw)
zipFile file;
const char* filename;
const zip_fileinfo* zipfi;
const void* extrafield_local;
uInt size_extrafield_local;
const void* extrafield_global;
uInt size_extrafield_global;
const char* comment;
int method;
int level;
int raw;
{
return zipOpenNewFileInZip3 (file, filename, zipfi,
extrafield_local, size_extrafield_local,
extrafield_global, size_extrafield_global,
comment, method, level, raw,
-MAX_WBITS, DEF_MEM_LEVEL, Z_DEFAULT_STRATEGY,
NULL, 0);
}
extern int ZEXPORT zipOpenNewFileInZip (file, filename, zipfi,
extrafield_local, size_extrafield_local,
extrafield_global, size_extrafield_global,
comment, method, level)
zipFile file;
const char* filename;
const zip_fileinfo* zipfi;
const void* extrafield_local;
uInt size_extrafield_local;
const void* extrafield_global;
uInt size_extrafield_global;
const char* comment;
int method;
int level;
{
return zipOpenNewFileInZip2 (file, filename, zipfi,
extrafield_local, size_extrafield_local,
extrafield_global, size_extrafield_global,
comment, method, level, 0);
}
local int zipFlushWriteBuffer(zi)
zip_internal* zi;
{
int err=ZIP_OK;
if (zi->ci.encrypt != 0)
{
uInt i;
int t;
for (i=0;i<zi->ci.pos_in_buffered_data;i++)
zi->ci.buffered_data[i] = zencode(zi->ci.keys, zi->ci.pcrc_32_tab,
zi->ci.buffered_data[i],t);
}
if (ZWRITE(zi->z_filefunc,zi->filestream,zi->ci.buffered_data,zi->ci.pos_in_buffered_data)
!=zi->ci.pos_in_buffered_data)
err = ZIP_ERRNO;
zi->ci.pos_in_buffered_data = 0;
return err;
}
extern int ZEXPORT zipWriteInFileInZip (file, buf, len)
zipFile file;
const voidp buf;
const void* buf;
unsigned len;
{
zip_internal* zi;
@ -510,7 +933,7 @@ extern int ZEXPORT zipWriteInFileInZip (file, buf, len)
if (zi->in_opened_file_inzip == 0)
return ZIP_PARAMERROR;
zi->ci.stream.next_in = buf;
zi->ci.stream.next_in = (void*)buf;
zi->ci.stream.avail_in = len;
zi->ci.crc32 = crc32(zi->ci.crc32,buf,len);
@ -518,15 +941,17 @@ extern int ZEXPORT zipWriteInFileInZip (file, buf, len)
{
if (zi->ci.stream.avail_out == 0)
{
if (fwrite(zi->ci.buffered_data,(uInt)zi->ci.pos_in_buffered_data,1,zi->filezip)
!=1)
if (zipFlushWriteBuffer(zi) == ZIP_ERRNO)
err = ZIP_ERRNO;
zi->ci.pos_in_buffered_data = 0;
zi->ci.stream.avail_out = (uInt)Z_BUFSIZE;
zi->ci.stream.next_out = zi->ci.buffered_data;
}
if (zi->ci.method == Z_DEFLATED)
if(err != ZIP_OK)
break;
if ((zi->ci.method == Z_DEFLATED) && (!zi->ci.raw))
{
uLong uTotalOutBefore = zi->ci.stream.total_out;
err=deflate(&zi->ci.stream, Z_NO_FLUSH);
@ -555,33 +980,34 @@ extern int ZEXPORT zipWriteInFileInZip (file, buf, len)
}
}
return 0;
return err;
}
extern int ZEXPORT zipCloseFileInZip (file)
extern int ZEXPORT zipCloseFileInZipRaw (file, uncompressed_size, crc32)
zipFile file;
uLong uncompressed_size;
uLong crc32;
{
zip_internal* zi;
uLong compressed_size;
int err=ZIP_OK;
if (file == NULL)
return ZIP_PARAMERROR;
zi = (zip_internal*)file;
if (zi->in_opened_file_inzip == 0)
if (zi->in_opened_file_inzip == 0)
return ZIP_PARAMERROR;
zi->ci.stream.avail_in = 0;
if (zi->ci.method == Z_DEFLATED)
if ((zi->ci.method == Z_DEFLATED) && (!zi->ci.raw))
while (err==ZIP_OK)
{
uLong uTotalOutBefore;
if (zi->ci.stream.avail_out == 0)
{
if (fwrite(zi->ci.buffered_data,(uInt)zi->ci.pos_in_buffered_data,1,zi->filezip)
!=1)
if (zipFlushWriteBuffer(zi) == ZIP_ERRNO)
err = ZIP_ERRNO;
zi->ci.pos_in_buffered_data = 0;
zi->ci.stream.avail_out = (uInt)Z_BUFSIZE;
zi->ci.stream.next_out = zi->ci.buffered_data;
}
@ -594,21 +1020,32 @@ extern int ZEXPORT zipCloseFileInZip (file)
err=ZIP_OK; /* this is normal */
if ((zi->ci.pos_in_buffered_data>0) && (err==ZIP_OK))
if (fwrite(zi->ci.buffered_data,(uInt)zi->ci.pos_in_buffered_data,1,zi->filezip)
!=1)
if (zipFlushWriteBuffer(zi)==ZIP_ERRNO)
err = ZIP_ERRNO;
if ((zi->ci.method == Z_DEFLATED) && (err==ZIP_OK))
if ((zi->ci.method == Z_DEFLATED) && (!zi->ci.raw))
{
err=deflateEnd(&zi->ci.stream);
zi->ci.stream_initialised = 0;
}
ziplocal_putValue_inmemory(zi->ci.central_header+16,(uLong)zi->ci.crc32,4); /*crc*/
if (!zi->ci.raw)
{
crc32 = (uLong)zi->ci.crc32;
uncompressed_size = (uLong)zi->ci.stream.total_in;
}
compressed_size = (uLong)zi->ci.stream.total_out;
#ifndef NOCRPYT
compressed_size += zi->ci.crypt_header_size;
#endif
ziplocal_putValue_inmemory(zi->ci.central_header+16,crc32,4); /*crc*/
ziplocal_putValue_inmemory(zi->ci.central_header+20,
(uLong)zi->ci.stream.total_out,4); /*compr size*/
compressed_size,4); /*compr size*/
if (zi->ci.stream.data_type == Z_ASCII)
ziplocal_putValue_inmemory(zi->ci.central_header+36,(uLong)Z_ASCII,2);
ziplocal_putValue_inmemory(zi->ci.central_header+24,
(uLong)zi->ci.stream.total_in,4); /*uncompr size*/
uncompressed_size,4); /*uncompr size*/
if (err==ZIP_OK)
err = add_data_in_datablock(&zi->central_dir,zi->ci.central_header,
@ -617,23 +1054,23 @@ extern int ZEXPORT zipCloseFileInZip (file)
if (err==ZIP_OK)
{
long cur_pos_inzip = ftell(zi->filezip);
if (fseek(zi->filezip,
zi->ci.pos_local_header + 14,SEEK_SET)!=0)
err = ZIP_ERRNO;
long cur_pos_inzip = ZTELL(zi->z_filefunc,zi->filestream);
if (ZSEEK(zi->z_filefunc,zi->filestream,
zi->ci.pos_local_header + 14,ZLIB_FILEFUNC_SEEK_SET)!=0)
err = ZIP_ERRNO;
if (err==ZIP_OK)
err = ziplocal_putValue(zi->filezip,(uLong)zi->ci.crc32,4); /* crc 32, unknown */
err = ziplocal_putValue(&zi->z_filefunc,zi->filestream,crc32,4); /* crc 32, unknown */
if (err==ZIP_OK) /* compressed size, unknown */
err = ziplocal_putValue(zi->filezip,(uLong)zi->ci.stream.total_out,4);
err = ziplocal_putValue(&zi->z_filefunc,zi->filestream,compressed_size,4);
if (err==ZIP_OK) /* uncompressed size, unknown */
err = ziplocal_putValue(zi->filezip,(uLong)zi->ci.stream.total_in,4);
err = ziplocal_putValue(&zi->z_filefunc,zi->filestream,uncompressed_size,4);
if (fseek(zi->filezip,
cur_pos_inzip,SEEK_SET)!=0)
err = ZIP_ERRNO;
if (ZSEEK(zi->z_filefunc,zi->filestream,
cur_pos_inzip,ZLIB_FILEFUNC_SEEK_SET)!=0)
err = ZIP_ERRNO;
}
zi->number_entry ++;
@ -642,6 +1079,12 @@ extern int ZEXPORT zipCloseFileInZip (file)
return err;
}
extern int ZEXPORT zipCloseFileInZip (file)
zipFile file;
{
return zipCloseFileInZipRaw (file,0,0);
}
extern int ZEXPORT zipClose (file, global_comment)
zipFile file;
const char* global_comment;
@ -666,15 +1109,16 @@ extern int ZEXPORT zipClose (file, global_comment)
size_global_comment = strlen(global_comment);
centraldir_pos_inzip = ftell(zi->filezip);
centraldir_pos_inzip = ZTELL(zi->z_filefunc,zi->filestream);
if (err==ZIP_OK)
{
linkedlist_datablock_internal* ldi = zi->central_dir.first_block ;
while (ldi!=NULL)
{
if ((err==ZIP_OK) && (ldi->filled_in_this_block>0))
if (fwrite(ldi->data,(uInt)ldi->filled_in_this_block,
1,zi->filezip) !=1 )
if (ZWRITE(zi->z_filefunc,zi->filestream,
ldi->data,ldi->filled_in_this_block)
!=ldi->filled_in_this_block )
err = ZIP_ERRNO;
size_centraldir += ldi->filled_in_this_block;
@ -684,34 +1128,40 @@ extern int ZEXPORT zipClose (file, global_comment)
free_datablock(zi->central_dir.first_block);
if (err==ZIP_OK) /* Magic End */
err = ziplocal_putValue(zi->filezip,(uLong)ENDHEADERMAGIC,4);
err = ziplocal_putValue(&zi->z_filefunc,zi->filestream,(uLong)ENDHEADERMAGIC,4);
if (err==ZIP_OK) /* number of this disk */
err = ziplocal_putValue(zi->filezip,(uLong)0,2);
err = ziplocal_putValue(&zi->z_filefunc,zi->filestream,(uLong)0,2);
if (err==ZIP_OK) /* number of the disk with the start of the central directory */
err = ziplocal_putValue(zi->filezip,(uLong)0,2);
err = ziplocal_putValue(&zi->z_filefunc,zi->filestream,(uLong)0,2);
if (err==ZIP_OK) /* total number of entries in the central dir on this disk */
err = ziplocal_putValue(zi->filezip,(uLong)zi->number_entry,2);
err = ziplocal_putValue(&zi->z_filefunc,zi->filestream,(uLong)zi->number_entry,2);
if (err==ZIP_OK) /* total number of entries in the central dir */
err = ziplocal_putValue(zi->filezip,(uLong)zi->number_entry,2);
err = ziplocal_putValue(&zi->z_filefunc,zi->filestream,(uLong)zi->number_entry,2);
if (err==ZIP_OK) /* size of the central directory */
err = ziplocal_putValue(zi->filezip,(uLong)size_centraldir,4);
err = ziplocal_putValue(&zi->z_filefunc,zi->filestream,(uLong)size_centraldir,4);
if (err==ZIP_OK) /* offset of start of central directory with respect to the
starting disk number */
err = ziplocal_putValue(zi->filezip,(uLong)centraldir_pos_inzip ,4);
if (err==ZIP_OK) /* offset of start of central directory with respect to the
starting disk number */
err = ziplocal_putValue(&zi->z_filefunc,zi->filestream,
(uLong)(centraldir_pos_inzip - zi->add_position_when_writting_offset),4);
if (err==ZIP_OK) /* zipfile comment length */
err = ziplocal_putValue(zi->filezip,(uLong)size_global_comment,2);
err = ziplocal_putValue(&zi->z_filefunc,zi->filestream,(uLong)size_global_comment,2);
if ((err==ZIP_OK) && (size_global_comment>0))
if (fwrite(global_comment,(uInt)size_global_comment,1,zi->filezip) !=1 )
if (ZWRITE(zi->z_filefunc,zi->filestream,
global_comment,size_global_comment) != size_global_comment)
err = ZIP_ERRNO;
fclose(zi->filezip);
if (ZCLOSE(zi->z_filefunc,zi->filestream) != 0)
if (err == ZIP_OK)
err = ZIP_ERRNO;
TRYFREE(zi);
return err;

5
contrib/minizip/zip.def
View File

@ -1,5 +0,0 @@
zipOpen @80
zipOpenNewFileInZip @81
zipWriteInFileInZip @82
zipCloseFileInZip @83
zipClose @84

163
contrib/minizip/zip.h
View File

@ -1,7 +1,7 @@
/* zip.h -- IO for compress .zip files using zlib
Version 0.15 alpha, Mar 19th, 1998,
/* zip.h -- IO for compress .zip files using zlib
Version 0.21, March 10th, 2003
Copyright (C) 1998 Gilles Vollant
Copyright (C) 1998-2003 Gilles Vollant
This unzip package allow creates .ZIP file, compatible with PKZip 2.04g
WinZip, InfoZip tools and compatible.
@ -10,10 +10,9 @@
For uncompress .zip file, look at unzip.h
THIS IS AN ALPHA VERSION. AT THIS STAGE OF DEVELOPPEMENT, SOMES API OR STRUCTURE
CAN CHANGE IN FUTURE VERSION !!
I WAIT FEEDBACK at mail info@winimage.com
Visit also http://www.winimage.com/zLibDll/zip.htm for evolution
Visit also http://www.winimage.com/zLibDll/unzip.html for evolution
Condition of use and distribution are the same than zlib :
@ -36,8 +35,9 @@
*/
/* for more info about .ZIP format, see
ftp://ftp.cdrom.com/pub/infozip/doc/appnote-970311-iz.zip
/* for more info about .ZIP format, see
http://www.info-zip.org/pub/infozip/doc/appnote-981119-iz.zip
http://www.info-zip.org/pub/infozip/doc/
PkWare has also a specification at :
ftp://ftp.pkware.com/probdesc.zip
*/
@ -53,34 +53,49 @@ extern "C" {
#include "zlib.h"
#endif
#ifndef _ZLIBIOAPI_H
#include "ioapi.h"
#endif
#if defined(STRICTZIP) || defined(STRICTZIPUNZIP)
/* like the STRICT of WIN32, we define a pointer that cannot be converted
from (void*) without cast */
typedef struct TagzipFile__ { int unused; } zipFile__;
typedef struct TagzipFile__ { int unused; } zipFile__;
typedef zipFile__ *zipFile;
#else
typedef voidp zipFile;
#endif
#define ZIP_OK (0)
#define ZIP_ERRNO (Z_ERRNO)
#define ZIP_OK (0)
#define ZIP_EOF (0)
#define ZIP_ERRNO (Z_ERRNO)
#define ZIP_PARAMERROR (-102)
#define ZIP_BADZIPFILE (-103)
#define ZIP_INTERNALERROR (-104)
#ifndef DEF_MEM_LEVEL
# if MAX_MEM_LEVEL >= 8
# define DEF_MEM_LEVEL 8
# else
# define DEF_MEM_LEVEL MAX_MEM_LEVEL
# endif
#endif
/* default memLevel */
/* tm_zip contain date/time info */
typedef struct tm_zip_s
typedef struct tm_zip_s
{
uInt tm_sec; /* seconds after the minute - [0,59] */
uInt tm_min; /* minutes after the hour - [0,59] */
uInt tm_hour; /* hours since midnight - [0,23] */
uInt tm_mday; /* day of the month - [1,31] */
uInt tm_mon; /* months since January - [0,11] */
uInt tm_year; /* years - [1980..2044] */
uInt tm_sec; /* seconds after the minute - [0,59] */
uInt tm_min; /* minutes after the hour - [0,59] */
uInt tm_hour; /* hours since midnight - [0,23] */
uInt tm_mday; /* day of the month - [1,31] */
uInt tm_mon; /* months since January - [0,11] */
uInt tm_year; /* years - [1980..2044] */
} tm_zip;
typedef struct
{
tm_zip tmz_date; /* date in understandable format */
tm_zip tmz_date; /* date in understandable format */
uLong dosDate; /* if dos_date == 0, tmu_date is used */
/* uLong flag; */ /* general purpose bit flag 2 bytes */
@ -88,30 +103,48 @@ typedef struct
uLong external_fa; /* external file attributes 4 bytes */
} zip_fileinfo;
typedef const char* zipcharpc;
#define APPEND_STATUS_CREATE (0)
#define APPEND_STATUS_CREATEAFTER (1)
#define APPEND_STATUS_ADDINZIP (2)
extern zipFile ZEXPORT zipOpen OF((const char *pathname, int append));
/*
Create a zipfile.
pathname contain on Windows NT a filename like "c:\\zlib\\zlib111.zip" or on
an Unix computer "zlib/zlib111.zip".
if the file pathname exist and append=1, the zip will be created at the end
of the file. (useful if the file contain a self extractor code)
If the zipfile cannot be opened, the return value is NULL.
pathname contain on Windows XP a filename like "c:\\zlib\\zlib113.zip" or on
an Unix computer "zlib/zlib113.zip".
if the file pathname exist and append==APPEND_STATUS_CREATEAFTER, the zip
will be created at the end of the file.
(useful if the file contain a self extractor code)
if the file pathname exist and append==APPEND_STATUS_ADDINZIP, we will
add files in existing zip (be sure you don't add file that doesn't exist)
If the zipfile cannot be opened, the return value is NULL.
Else, the return value is a zipFile Handle, usable with other function
of this zip package.
of this zip package.
*/
/* Note : there is no delete function into a zipfile.
If you want delete file into a zipfile, you must open a zipfile, and create another
Of couse, you can use RAW reading and writing to copy the file you did not want delte
*/
extern zipFile ZEXPORT zipOpen2 OF((const char *pathname,
int append,
zipcharpc* globalcomment,
zlib_filefunc_def* pzlib_filefunc_def));
extern int ZEXPORT zipOpenNewFileInZip OF((zipFile file,
const char* filename,
const zip_fileinfo* zipfi,
const void* extrafield_local,
uInt size_extrafield_local,
const void* extrafield_global,
uInt size_extrafield_global,
const char* comment,
int method,
int level));
const char* filename,
const zip_fileinfo* zipfi,
const void* extrafield_local,
uInt size_extrafield_local,
const void* extrafield_global,
uInt size_extrafield_global,
const char* comment,
int method,
int level));
/*
Open a file in the ZIP for writing.
filename : the filename in zip (if NULL, '-' without quote will be used
@ -125,9 +158,51 @@ extern int ZEXPORT zipOpenNewFileInZip OF((zipFile file,
level contain the level of compression (can be Z_DEFAULT_COMPRESSION)
*/
extern int ZEXPORT zipOpenNewFileInZip2 OF((zipFile file,
const char* filename,
const zip_fileinfo* zipfi,
const void* extrafield_local,
uInt size_extrafield_local,
const void* extrafield_global,
uInt size_extrafield_global,
const char* comment,
int method,
int level,
int raw));
/*
Same than zipOpenNewFileInZip, except if raw=1, we write raw file
*/
extern int ZEXPORT zipOpenNewFileInZip3 OF((zipFile file,
const char* filename,
const zip_fileinfo* zipfi,
const void* extrafield_local,
uInt size_extrafield_local,
const void* extrafield_global,
uInt size_extrafield_global,
const char* comment,
int method,
int level,
int raw,
int windowBits,
int memLevel,
int strategy,
const char* password,
uLong crcForCtypting));
/*
Same than zipOpenNewFileInZip2, except
windowBits,memLevel,,strategy : see parameter strategy in deflateInit2
password : crypting password (NULL for no crypting)
crcForCtypting : crc of file to compress (needed for crypting)
*/
extern int ZEXPORT zipWriteInFileInZip OF((zipFile file,
const voidp buf,
unsigned len));
const void* buf,
unsigned len));
/*
Write data in the zipfile
*/
@ -137,8 +212,18 @@ extern int ZEXPORT zipCloseFileInZip OF((zipFile file));
Close the current file in the zipfile
*/
extern int ZEXPORT zipCloseFileInZipRaw OF((zipFile file,
uLong uncompressed_size,
uLong crc32));
/*
Close the current file in the zipfile, for fiel opened with
parameter raw=1 in zipOpenNewFileInZip2
uncompressed_size and crc32 are value for the uncompressed size
*/
extern int ZEXPORT zipClose OF((zipFile file,
const char* global_comment));
const char* global_comment));
/*
Close the zipfile
*/

651
contrib/minizip/zlibvc.dsp
View File

@ -1,651 +0,0 @@
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# ADD BASE LINK32 gvmat32.obj kernel32.lib user32.lib gdi32.lib winspool.lib comdlg32.lib advapi32.lib shell32.lib ole32.lib oleaut32.lib uuid.lib crtdll.lib /nologo /subsystem:windows /dll /map /machine:I386 /nodefaultlib /out:".\Release\zlib.dll"
# SUBTRACT BASE LINK32 /pdb:none
# ADD LINK32 gvmat32.obj kernel32.lib user32.lib gdi32.lib winspool.lib comdlg32.lib advapi32.lib shell32.lib ole32.lib oleaut32.lib uuid.lib crtdll.lib /nologo /subsystem:windows /dll /map /machine:I386 /nodefaultlib /out:".\zlibvc_1\zlib.dll"
# SUBTRACT LINK32 /pdb:none
!ENDIF
# Begin Target
# Name "zlibvc - Win32 Release"
# Name "zlibvc - Win32 Debug"
# Name "zlibvc - Win32 ReleaseAxp"
# Name "zlibvc - Win32 ReleaseWithoutAsm"
# Name "zlibvc - Win32 ReleaseWithoutCrtdll"
# Begin Group "Source Files"
# PROP Default_Filter "cpp;c;cxx;rc;def;r;odl;hpj;bat;for;f90"
# Begin Source File
SOURCE=.\adler32.c
!IF "$(CFG)" == "zlibvc - Win32 Release"
!ELSEIF "$(CFG)" == "zlibvc - Win32 Debug"
!ELSEIF "$(CFG)" == "zlibvc - Win32 ReleaseAxp"
DEP_CPP_ADLER=\
".\zconf.h"\
".\zlib.h"\
!ELSEIF "$(CFG)" == "zlibvc - Win32 ReleaseWithoutAsm"
!ELSEIF "$(CFG)" == "zlibvc - Win32 ReleaseWithoutCrtdll"
!ENDIF
# End Source File
# Begin Source File
SOURCE=.\compress.c
!IF "$(CFG)" == "zlibvc - Win32 Release"
!ELSEIF "$(CFG)" == "zlibvc - Win32 Debug"
!ELSEIF "$(CFG)" == "zlibvc - Win32 ReleaseAxp"
DEP_CPP_COMPR=\
".\zconf.h"\
".\zlib.h"\
!ELSEIF "$(CFG)" == "zlibvc - Win32 ReleaseWithoutAsm"
!ELSEIF "$(CFG)" == "zlibvc - Win32 ReleaseWithoutCrtdll"
!ENDIF
# End Source File
# Begin Source File
SOURCE=.\crc32.c
!IF "$(CFG)" == "zlibvc - Win32 Release"
!ELSEIF "$(CFG)" == "zlibvc - Win32 Debug"
!ELSEIF "$(CFG)" == "zlibvc - Win32 ReleaseAxp"
DEP_CPP_CRC32=\
".\zconf.h"\
".\zlib.h"\
!ELSEIF "$(CFG)" == "zlibvc - Win32 ReleaseWithoutAsm"
!ELSEIF "$(CFG)" == "zlibvc - Win32 ReleaseWithoutCrtdll"
!ENDIF
# End Source File
# Begin Source File
SOURCE=.\deflate.c
!IF "$(CFG)" == "zlibvc - Win32 Release"
!ELSEIF "$(CFG)" == "zlibvc - Win32 Debug"
!ELSEIF "$(CFG)" == "zlibvc - Win32 ReleaseAxp"
DEP_CPP_DEFLA=\
".\deflate.h"\
".\zconf.h"\
".\zlib.h"\
".\zutil.h"\
!ELSEIF "$(CFG)" == "zlibvc - Win32 ReleaseWithoutAsm"
!ELSEIF "$(CFG)" == "zlibvc - Win32 ReleaseWithoutCrtdll"
!ENDIF
# End Source File
# Begin Source File
SOURCE=.\gvmat32c.c
!IF "$(CFG)" == "zlibvc - Win32 Release"
!ELSEIF "$(CFG)" == "zlibvc - Win32 Debug"
!ELSEIF "$(CFG)" == "zlibvc - Win32 ReleaseAxp"
!ELSEIF "$(CFG)" == "zlibvc - Win32 ReleaseWithoutAsm"
!ELSEIF "$(CFG)" == "zlibvc - Win32 ReleaseWithoutCrtdll"
!ENDIF
# End Source File
# Begin Source File
SOURCE=.\gzio.c
!IF "$(CFG)" == "zlibvc - Win32 Release"
!ELSEIF "$(CFG)" == "zlibvc - Win32 Debug"
!ELSEIF "$(CFG)" == "zlibvc - Win32 ReleaseAxp"
DEP_CPP_GZIO_=\
".\zconf.h"\
".\zlib.h"\
".\zutil.h"\
!ELSEIF "$(CFG)" == "zlibvc - Win32 ReleaseWithoutAsm"
!ELSEIF "$(CFG)" == "zlibvc - Win32 ReleaseWithoutCrtdll"
!ENDIF
# End Source File
# Begin Source File
SOURCE=.\infblock.c
!IF "$(CFG)" == "zlibvc - Win32 Release"
!ELSEIF "$(CFG)" == "zlibvc - Win32 Debug"
!ELSEIF "$(CFG)" == "zlibvc - Win32 ReleaseAxp"
DEP_CPP_INFBL=\
".\infblock.h"\
".\infcodes.h"\
".\inftrees.h"\
".\infutil.h"\
".\zconf.h"\
".\zlib.h"\
".\zutil.h"\
!ELSEIF "$(CFG)" == "zlibvc - Win32 ReleaseWithoutAsm"
!ELSEIF "$(CFG)" == "zlibvc - Win32 ReleaseWithoutCrtdll"
!ENDIF
# End Source File
# Begin Source File
SOURCE=.\infcodes.c
!IF "$(CFG)" == "zlibvc - Win32 Release"
!ELSEIF "$(CFG)" == "zlibvc - Win32 Debug"
!ELSEIF "$(CFG)" == "zlibvc - Win32 ReleaseAxp"
DEP_CPP_INFCO=\
".\infblock.h"\
".\infcodes.h"\
".\inffast.h"\
".\inftrees.h"\
".\infutil.h"\
".\zconf.h"\
".\zlib.h"\
".\zutil.h"\
!ELSEIF "$(CFG)" == "zlibvc - Win32 ReleaseWithoutAsm"
!ELSEIF "$(CFG)" == "zlibvc - Win32 ReleaseWithoutCrtdll"
!ENDIF
# End Source File
# Begin Source File
SOURCE=.\inffast.c
!IF "$(CFG)" == "zlibvc - Win32 Release"
!ELSEIF "$(CFG)" == "zlibvc - Win32 Debug"
!ELSEIF "$(CFG)" == "zlibvc - Win32 ReleaseAxp"
DEP_CPP_INFFA=\
".\infblock.h"\
".\infcodes.h"\
".\inffast.h"\
".\inftrees.h"\
".\infutil.h"\
".\zconf.h"\
".\zlib.h"\
".\zutil.h"\
!ELSEIF "$(CFG)" == "zlibvc - Win32 ReleaseWithoutAsm"
!ELSEIF "$(CFG)" == "zlibvc - Win32 ReleaseWithoutCrtdll"
!ENDIF
# End Source File
# Begin Source File
SOURCE=.\inflate.c
!IF "$(CFG)" == "zlibvc - Win32 Release"
!ELSEIF "$(CFG)" == "zlibvc - Win32 Debug"
!ELSEIF "$(CFG)" == "zlibvc - Win32 ReleaseAxp"
DEP_CPP_INFLA=\
".\infblock.h"\
".\zconf.h"\
".\zlib.h"\
".\zutil.h"\
!ELSEIF "$(CFG)" == "zlibvc - Win32 ReleaseWithoutAsm"
!ELSEIF "$(CFG)" == "zlibvc - Win32 ReleaseWithoutCrtdll"
!ENDIF
# End Source File
# Begin Source File
SOURCE=.\inftrees.c
!IF "$(CFG)" == "zlibvc - Win32 Release"
!ELSEIF "$(CFG)" == "zlibvc - Win32 Debug"
!ELSEIF "$(CFG)" == "zlibvc - Win32 ReleaseAxp"
DEP_CPP_INFTR=\
".\inftrees.h"\
".\zconf.h"\
".\zlib.h"\
".\zutil.h"\
!ELSEIF "$(CFG)" == "zlibvc - Win32 ReleaseWithoutAsm"
!ELSEIF "$(CFG)" == "zlibvc - Win32 ReleaseWithoutCrtdll"
!ENDIF
# End Source File
# Begin Source File
SOURCE=.\infutil.c
!IF "$(CFG)" == "zlibvc - Win32 Release"
!ELSEIF "$(CFG)" == "zlibvc - Win32 Debug"
!ELSEIF "$(CFG)" == "zlibvc - Win32 ReleaseAxp"
DEP_CPP_INFUT=\
".\infblock.h"\
".\infcodes.h"\
".\inftrees.h"\
".\infutil.h"\
".\zconf.h"\
".\zlib.h"\
".\zutil.h"\
!ELSEIF "$(CFG)" == "zlibvc - Win32 ReleaseWithoutAsm"
!ELSEIF "$(CFG)" == "zlibvc - Win32 ReleaseWithoutCrtdll"
!ENDIF
# End Source File
# Begin Source File
SOURCE=.\trees.c
!IF "$(CFG)" == "zlibvc - Win32 Release"
!ELSEIF "$(CFG)" == "zlibvc - Win32 Debug"
!ELSEIF "$(CFG)" == "zlibvc - Win32 ReleaseAxp"
DEP_CPP_TREES=\
".\deflate.h"\
".\zconf.h"\
".\zlib.h"\
".\zutil.h"\
!ELSEIF "$(CFG)" == "zlibvc - Win32 ReleaseWithoutAsm"
!ELSEIF "$(CFG)" == "zlibvc - Win32 ReleaseWithoutCrtdll"
!ENDIF
# End Source File
# Begin Source File
SOURCE=.\uncompr.c
!IF "$(CFG)" == "zlibvc - Win32 Release"
!ELSEIF "$(CFG)" == "zlibvc - Win32 Debug"
!ELSEIF "$(CFG)" == "zlibvc - Win32 ReleaseAxp"
DEP_CPP_UNCOM=\
".\zconf.h"\
".\zlib.h"\
!ELSEIF "$(CFG)" == "zlibvc - Win32 ReleaseWithoutAsm"
!ELSEIF "$(CFG)" == "zlibvc - Win32 ReleaseWithoutCrtdll"
!ENDIF
# End Source File
# Begin Source File
SOURCE=.\unzip.c
!IF "$(CFG)" == "zlibvc - Win32 Release"
!ELSEIF "$(CFG)" == "zlibvc - Win32 Debug"
!ELSEIF "$(CFG)" == "zlibvc - Win32 ReleaseAxp"
!ELSEIF "$(CFG)" == "zlibvc - Win32 ReleaseWithoutAsm"
!ELSEIF "$(CFG)" == "zlibvc - Win32 ReleaseWithoutCrtdll"
!ENDIF
# End Source File
# Begin Source File
SOURCE=.\zip.c
!IF "$(CFG)" == "zlibvc - Win32 Release"
!ELSEIF "$(CFG)" == "zlibvc - Win32 Debug"
!ELSEIF "$(CFG)" == "zlibvc - Win32 ReleaseAxp"
!ELSEIF "$(CFG)" == "zlibvc - Win32 ReleaseWithoutAsm"
!ELSEIF "$(CFG)" == "zlibvc - Win32 ReleaseWithoutCrtdll"
!ENDIF
# End Source File
# Begin Source File
SOURCE=.\zlib.rc
# End Source File
# Begin Source File
SOURCE=.\zlibvc.def
# End Source File
# Begin Source File
SOURCE=.\zutil.c
!IF "$(CFG)" == "zlibvc - Win32 Release"
!ELSEIF "$(CFG)" == "zlibvc - Win32 Debug"
!ELSEIF "$(CFG)" == "zlibvc - Win32 ReleaseAxp"
DEP_CPP_ZUTIL=\
".\zconf.h"\
".\zlib.h"\
".\zutil.h"\
!ELSEIF "$(CFG)" == "zlibvc - Win32 ReleaseWithoutAsm"
!ELSEIF "$(CFG)" == "zlibvc - Win32 ReleaseWithoutCrtdll"
!ENDIF
# End Source File
# End Group
# Begin Group "Header Files"
# PROP Default_Filter "h;hpp;hxx;hm;inl;fi;fd"
# Begin Source File
SOURCE=.\deflate.h
# End Source File
# Begin Source File
SOURCE=.\infblock.h
# End Source File
# Begin Source File
SOURCE=.\infcodes.h
# End Source File
# Begin Source File
SOURCE=.\inffast.h
# End Source File
# Begin Source File
SOURCE=.\inftrees.h
# End Source File
# Begin Source File
SOURCE=.\infutil.h
# End Source File
# Begin Source File
SOURCE=.\zconf.h
# End Source File
# Begin Source File
SOURCE=.\zlib.h
# End Source File
# Begin Source File
SOURCE=.\zutil.h
# End Source File
# End Group
# Begin Group "Resource Files"
# PROP Default_Filter "ico;cur;bmp;dlg;rc2;rct;bin;cnt;rtf;gif;jpg;jpeg;jpe"
# End Group
# End Target
# End Project

41
contrib/minizip/zlibvc.dsw
View File

@ -1,41 +0,0 @@
Microsoft Developer Studio Workspace File, Format Version 5.00
# WARNING: DO NOT EDIT OR DELETE THIS WORKSPACE FILE!
###############################################################################
Project: "zlibstat"=.\zlibstat.dsp - Package Owner=<4>
Package=<5>
{{{
}}}
Package=<4>
{{{
}}}
###############################################################################
Project: "zlibvc"=.\zlibvc.dsp - Package Owner=<4>
Package=<5>
{{{
}}}
Package=<4>
{{{
}}}
###############################################################################
Global:
Package=<5>
{{{
}}}
Package=<3>
{{{
}}}
###############################################################################

149
contrib/testzlib/testzlib.c Normal file
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@ -0,0 +1,149 @@
#include <stdio.h>
#include <stdlib.h>
#include <windows.h>
#include "zlib.h"
int ReadFileMemory(const char* filename,long* plFileSize,void** pFilePtr)
{
FILE* stream;
void* ptr;
int retVal=1;
stream=fopen(filename, "rb");
if (stream==NULL)
return 0;
fseek(stream,0,SEEK_END);
*plFileSize=ftell(stream);
fseek(stream,0,SEEK_SET);
ptr=malloc((*plFileSize)+1);
if (ptr==NULL)
retVal=0;
else
{
if (fread(ptr, 1, *plFileSize,stream) != (*plFileSize))
retVal=0;
}
fclose(stream);
*pFilePtr=ptr;
return retVal;
}
int main(int argc, char *argv[])
{
int BlockSizeCompress=0x8000;
int BlockSizeUncompress=0x8000;
int cprLevel=Z_DEFAULT_COMPRESSION ;
long lFileSize;
unsigned char* FilePtr;
long lBufferSizeCpr;
long lBufferSizeUncpr;
long lCompressedSize=0;
unsigned char* CprPtr;
unsigned char* UncprPtr;
long lSizeCpr,lSizeUncpr;
DWORD dwGetTick;
if (argc<=1)
{
printf("run TestZlib <File> [BlockSizeCompress] [BlockSizeUncompress] [compres. level]\n");
return 0;
}
if (ReadFileMemory(argv[1],&lFileSize,&FilePtr)==0)
{
printf("error reading %s\n",argv[1]);
return 1;
}
else printf("file %s read, %u bytes\n",argv[1],lFileSize);
if (argc>=3)
BlockSizeCompress=atol(argv[2]);
if (argc>=4)
BlockSizeUncompress=atol(argv[3]);
if (argc>=5)
cprLevel=(int)atol(argv[4]);
lBufferSizeCpr = lFileSize + (lFileSize/0x10) + 0x200;
lBufferSizeUncpr = lBufferSizeCpr;
CprPtr=(unsigned char*)malloc(lBufferSizeCpr + BlockSizeCompress);
UncprPtr=(unsigned char*)malloc(lBufferSizeUncpr + BlockSizeUncompress);
dwGetTick=GetTickCount();
{
z_stream zcpr;
int ret=Z_OK;
long lOrigToDo = lFileSize;
long lOrigDone = 0;
int step=0;
memset(&zcpr,0,sizeof(z_stream));
deflateInit(&zcpr,cprLevel);
zcpr.next_in = FilePtr;
zcpr.next_out = CprPtr;
do
{
long all_read_before = zcpr.total_in;
zcpr.avail_in = min(lOrigToDo,BlockSizeCompress);
zcpr.avail_out = BlockSizeCompress;
ret=deflate(&zcpr,(zcpr.avail_in==lOrigToDo) ? Z_FINISH : Z_SYNC_FLUSH);
lOrigDone += (zcpr.total_in-all_read_before);
lOrigToDo -= (zcpr.total_in-all_read_before);
step++;
} while (ret==Z_OK);
lSizeCpr=zcpr.total_out;
deflateEnd(&zcpr);
dwGetTick=GetTickCount()-dwGetTick;
printf("total compress size = %u, in %u step\n",lSizeCpr,step);
printf("time = %u msec = %f sec\n\n",dwGetTick,dwGetTick/(double)1000.);
}
dwGetTick=GetTickCount();
{
z_stream zcpr;
int ret=Z_OK;
long lOrigToDo = lSizeCpr;
long lOrigDone = 0;
int step=0;
memset(&zcpr,0,sizeof(z_stream));
inflateInit(&zcpr);
zcpr.next_in = CprPtr;
zcpr.next_out = UncprPtr;
do
{
long all_read_before = zcpr.total_in;
zcpr.avail_in = min(lOrigToDo,BlockSizeUncompress);
zcpr.avail_out = BlockSizeUncompress;
ret=inflate(&zcpr,Z_SYNC_FLUSH);
lOrigDone += (zcpr.total_in-all_read_before);
lOrigToDo -= (zcpr.total_in-all_read_before);
step++;
} while (ret==Z_OK);
lSizeUncpr=zcpr.total_out;
inflateEnd(&zcpr);
dwGetTick=GetTickCount()-dwGetTick;
printf("total uncompress size = %u, in %u step\n",lSizeUncpr,step);
printf("time = %u msec = %f sec\n\n",dwGetTick,dwGetTick/(double)1000.);
}
if (lSizeUncpr==lFileSize)
{
if (memcmp(FilePtr,UncprPtr,lFileSize)==0)
printf("compare ok\n");
}
return 0;
}

21
contrib/testzlib/testzlib.sln Normal file
View File

@ -0,0 +1,21 @@
Microsoft Visual Studio Solution File, Format Version 7.00
Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "testzlib", "testzlib.vcproj", "{AA6666AA-E09F-4135-9C0C-4FE50C3C654B}"
EndProject
Global
GlobalSection(SolutionConfiguration) = preSolution
ConfigName.0 = Debug
ConfigName.1 = Release
EndGlobalSection
GlobalSection(ProjectDependencies) = postSolution
EndGlobalSection
GlobalSection(ProjectConfiguration) = postSolution
{AA6666AA-E09F-4135-9C0C-4FE50C3C654B}.Debug.ActiveCfg = Debug|Win32
{AA6666AA-E09F-4135-9C0C-4FE50C3C654B}.Debug.Build.0 = Debug|Win32
{AA6666AA-E09F-4135-9C0C-4FE50C3C654B}.Release.ActiveCfg = Release|Win32
{AA6666AA-E09F-4135-9C0C-4FE50C3C654B}.Release.Build.0 = Release|Win32
EndGlobalSection
GlobalSection(ExtensibilityGlobals) = postSolution
EndGlobalSection
GlobalSection(ExtensibilityAddIns) = postSolution
EndGlobalSection
EndGlobal

124
contrib/testzlib/testzlib.vcproj Normal file
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<?xml version="1.0" encoding = "Windows-1252"?>
<VisualStudioProject
ProjectType="Visual C++"
Version="7.00"
Name="testzlib"
ProjectGUID="{AA6666AA-E09F-4135-9C0C-4FE50C3C654B}"
Keyword="Win32Proj">
<Platforms>
<Platform
Name="Win32"/>
</Platforms>
<Configurations>
<Configuration
Name="Debug|Win32"
OutputDirectory="Debug"
IntermediateDirectory="Debug"
ConfigurationType="1"
CharacterSet="2">
<Tool
Name="VCCLCompilerTool"
Optimization="0"
PreprocessorDefinitions="WIN32;_DEBUG;_CONSOLE"
MinimalRebuild="TRUE"
BasicRuntimeChecks="3"
RuntimeLibrary="5"
UsePrecompiledHeader="0"
WarningLevel="3"
Detect64BitPortabilityProblems="TRUE"
DebugInformationFormat="4"/>
<Tool
Name="VCCustomBuildTool"/>
<Tool
Name="VCLinkerTool"
OutputFile="$(OutDir)/testzlib.exe"
LinkIncremental="2"
GenerateDebugInformation="TRUE"
ProgramDatabaseFile="$(OutDir)/testzlib.pdb"
SubSystem="1"
TargetMachine="1"/>
<Tool
Name="VCMIDLTool"/>
<Tool
Name="VCPostBuildEventTool"/>
<Tool
Name="VCPreBuildEventTool"/>
<Tool
Name="VCPreLinkEventTool"/>
<Tool
Name="VCResourceCompilerTool"/>
<Tool
Name="VCWebServiceProxyGeneratorTool"/>
<Tool
Name="VCWebDeploymentTool"/>
</Configuration>
<Configuration
Name="Release|Win32"
OutputDirectory="Release"
IntermediateDirectory="Release"
ConfigurationType="1"
CharacterSet="2">
<Tool
Name="VCCLCompilerTool"
Optimization="2"
InlineFunctionExpansion="1"
OmitFramePointers="TRUE"
PreprocessorDefinitions="WIN32;NDEBUG;_CONSOLE"
StringPooling="TRUE"
RuntimeLibrary="4"
EnableFunctionLevelLinking="TRUE"
UsePrecompiledHeader="0"
WarningLevel="3"
Detect64BitPortabilityProblems="TRUE"
DebugInformationFormat="3"/>
<Tool
Name="VCCustomBuildTool"/>
<Tool
Name="VCLinkerTool"
OutputFile="$(OutDir)/testzlib.exe"
LinkIncremental="1"
GenerateDebugInformation="TRUE"
SubSystem="1"
OptimizeReferences="2"
EnableCOMDATFolding="2"
OptimizeForWindows98="1"
TargetMachine="1"/>
<Tool
Name="VCMIDLTool"/>
<Tool
Name="VCPostBuildEventTool"/>
<Tool
Name="VCPreBuildEventTool"/>
<Tool
Name="VCPreLinkEventTool"/>
<Tool
Name="VCResourceCompilerTool"/>
<Tool
Name="VCWebServiceProxyGeneratorTool"/>
<Tool
Name="VCWebDeploymentTool"/>
</Configuration>
</Configurations>
<Files>
<Filter
Name="Source Files"
Filter="cpp;c;cxx;def;odl;idl;hpj;bat;asm">
<File
RelativePath="testzlib.c">
</File>
</Filter>
<Filter
Name="Header Files"
Filter="h;hpp;hxx;hm;inl;inc">
</Filter>
<Filter
Name="Resource Files"
Filter="rc;ico;cur;bmp;dlg;rc2;rct;bin;rgs;gif;jpg;jpeg;jpe">
</Filter>
<File
RelativePath="zlib.lib">
</File>
</Files>
<Globals>
</Globals>
</VisualStudioProject>

17
contrib/vstudio/readme.txt Normal file
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@ -0,0 +1,17 @@
For create the 16 and 32 bits DLL of Zlib 1.20
For the 16 bits :
unzip zlib120.zip and copy file from contrib\vstudio\vc15_16 and from contrib\minizip in the same directory
open zlib16.mak with Microsoft Visual C++ 1.52
For the 32 bits :
unzip zlib120.zip and copy file from contrib\vstudio\vc70_32 and from contrib\minizip in the same directory
You can also need unzip http://www.winimage.com/zLibDll/crtdll.zip
If you are using x86, use target Release
open zlibvc.sln with Microsoft Visual C++ 7.0 (Visual Studio .net)
Note : You don't need recompile yourself. There is compiled .LIB in
http://www.winimage.com/zLibDll

94
contrib/vstudio/vc15_16/zlib16.def Normal file
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LIBRARY "zlib"
DESCRIPTION '"""zlib data compression library"""'
EXETYPE WINDOWS
VERSION 1.20
CODE PRELOAD MOVEABLE DISCARDABLE
DATA PRELOAD MOVEABLE SINGLE
HEAPSIZE 32768,8192
EXPORTS
adler32 @1
compress @2
crc32 @3
deflate @4
deflateCopy @5
deflateEnd @6
deflateInit2_ @7
deflateInit_ @8
deflateParams @9
deflateReset @10
deflateSetDictionary @11
gzclose @12
gzdopen @13
gzerror @14
gzflush @15
gzopen @16
gzread @17
gzwrite @18
inflate @19
inflateEnd @20
inflateInit2_ @21
inflateInit_ @22
inflateReset @23
inflateSetDictionary @24
inflateSync @25
uncompress @26
zlibVersion @27
_gzprintf @28
gzputc @29
gzgetc @30
gzseek @31
gzrewind @32
gztell @33
gzeof @34
gzsetparams @35
zError @36
inflateSyncPoint @37
get_crc_table @38
compress2 @39
gzputs @40
gzgets @41
inflateCopy @42
inflateBackInit_ @43
inflateBack @44
inflateBackEnd @45
compressBound @46
unzOpen @61
unzClose @62
unzGetGlobalInfo @63
unzGetCurrentFileInfo @64
unzGoToFirstFile @65
unzGoToNextFile @66
unzOpenCurrentFile @67
unzReadCurrentFile @68
unzOpenCurrentFile3 @69
unztell @70
unzeof @71
unzCloseCurrentFile @72
unzGetGlobalComment @73
unzStringFileNameCompare @74
unzLocateFile @75
unzGetLocalExtrafield @76
unzOpen2 @77
unzOpenCurrentFile2 @78
unzOpenCurrentFilePassword @79
zipOpen @80
zipOpenNewFileInZip @81
zipWriteInFileInZip @82
zipCloseFileInZip @83
zipClose @84
zipOpenNewFileInZip2 @86
zipCloseFileInZipRaw @87
zipOpen2 @88
zipOpenNewFileInZip3 @89
unzGetFilePos @100
unzGoToFilePos @101

256
contrib/vstudio/vc15_16/zlib16.mak Normal file
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@ -0,0 +1,256 @@
# Microsoft Visual C++ generated build script - Do not modify
PROJ = ZLIB16
DEBUG = 0
PROGTYPE = 1
CALLER =
ARGS =
DLLS =
D_RCDEFINES = -d_DEBUG
R_RCDEFINES = -dNDEBUG
ORIGIN = MSVC
ORIGIN_VER = 1.00
PROJPATH = c:\zlib\
USEMFC = 0
CC = cl
CPP = cl
CXX = cl
CCREATEPCHFLAG =
CPPCREATEPCHFLAG =
CUSEPCHFLAG =
CPPUSEPCHFLAG =
FIRSTC = ADLER32.C
FIRSTCPP =
RC = rc
CFLAGS_D_WDLL = /nologo /G2 /W3 /Zi /ALw /Od /D "_DEBUG" /D "WINDOWS" /D "ZLIB_DLL" /FR /GD /Fd"ZLIB.PDB"
CFLAGS_R_WDLL = /nologo /W3 /ALw /O1 /D "NDEBUG" /D "WINDOWS" /D "ZLIB_DLL" /FR /GD
LFLAGS_D_WDLL = /NOLOGO /ONERROR:NOEXE /NOD /PACKC:61440 /CO /NOE /ALIGN:16 /MAP:FULL
LFLAGS_R_WDLL = /NOLOGO /ONERROR:NOEXE /NOD /PACKC:61440 /NOE /ALIGN:16 /MAP:FULL
LIBS_D_WDLL = oldnames libw commdlg shell olecli olesvr ldllcew
LIBS_R_WDLL = oldnames libw commdlg shell olecli olesvr ldllcew
RCFLAGS = /nologo
RESFLAGS = /nologo
RUNFLAGS =
DEFFILE = ZLIB16.DEF
OBJS_EXT =
LIBS_EXT =
!if "$(DEBUG)" == "1"
CFLAGS = $(CFLAGS_D_WDLL)
LFLAGS = $(LFLAGS_D_WDLL)
LIBS = $(LIBS_D_WDLL)
MAPFILE = nul
RCDEFINES = $(D_RCDEFINES)
!else
CFLAGS = $(CFLAGS_R_WDLL)
LFLAGS = $(LFLAGS_R_WDLL)
LIBS = $(LIBS_R_WDLL)
MAPFILE = nul
RCDEFINES = $(R_RCDEFINES)
!endif
!if [if exist MSVC.BND del MSVC.BND]
!endif
SBRS = ADLER32.SBR \
COMPRESS.SBR \
CRC32.SBR \
DEFLATE.SBR \
GZIO.SBR \
INFFAST.SBR \
INFLATE.SBR \
TREES.SBR \
UNCOMPR.SBR \
ZUTIL.SBR \
ZIP.SBR \
UNZIP.SBR \
INFBACK.SBR \
IOAPI.SBR \
INFTREES.SBR
ADLER32_DEP = c:\zlib\zlib.h \
c:\zlib\zconf.h
COMPRESS_DEP = c:\zlib\zlib.h \
c:\zlib\zconf.h
CRC32_DEP = c:\zlib\zlib.h \
c:\zlib\zconf.h \
c:\zlib\crc32.h
DEFLATE_DEP = c:\zlib\deflate.h \
c:\zlib\zutil.h \
c:\zlib\zlib.h \
c:\zlib\zconf.h
GZIO_DEP = c:\zlib\zutil.h \
c:\zlib\zlib.h \
c:\zlib\zconf.h
INFFAST_DEP = c:\zlib\zutil.h \
c:\zlib\zlib.h \
c:\zlib\zconf.h \
c:\zlib\inftrees.h \
c:\zlib\inflate.h \
c:\zlib\inffast.h
INFLATE_DEP = c:\zlib\zutil.h \
c:\zlib\zlib.h \
c:\zlib\zconf.h \
c:\zlib\inftrees.h \
c:\zlib\inflate.h \
c:\zlib\inffast.h \
c:\zlib\inffixed.h
TREES_DEP = c:\zlib\deflate.h \
c:\zlib\zutil.h \
c:\zlib\zlib.h \
c:\zlib\zconf.h \
c:\zlib\trees.h
UNCOMPR_DEP = c:\zlib\zlib.h \
c:\zlib\zconf.h
ZUTIL_DEP = c:\zlib\zutil.h \
c:\zlib\zlib.h \
c:\zlib\zconf.h
ZLIB16_RCDEP =
ZIP_DEP = c:\zlib\zlib.h \
c:\zlib\zconf.h \
c:\zlib\zip.h \
c:\zlib\ioapi.h
UNZIP_DEP = c:\zlib\zlib.h \
c:\zlib\zconf.h \
c:\zlib\unzip.h \
c:\zlib\ioapi.h
INFBACK_DEP = c:\zlib\zutil.h \
c:\zlib\zlib.h \
c:\zlib\zconf.h \
c:\zlib\inftrees.h \
c:\zlib\inflate.h \
c:\zlib\inffast.h \
c:\zlib\inffixed.h
IOAPI_DEP = c:\zlib\zlib.h \
c:\zlib\zconf.h \
c:\zlib\ioapi.h
INFTREES_DEP = c:\zlib\zutil.h \
c:\zlib\zlib.h \
c:\zlib\zconf.h \
c:\zlib\inftrees.h
all: $(PROJ).DLL $(PROJ).BSC
ADLER32.OBJ: ADLER32.C $(ADLER32_DEP)
$(CC) $(CFLAGS) $(CCREATEPCHFLAG) /c ADLER32.C
COMPRESS.OBJ: COMPRESS.C $(COMPRESS_DEP)
$(CC) $(CFLAGS) $(CUSEPCHFLAG) /c COMPRESS.C
CRC32.OBJ: CRC32.C $(CRC32_DEP)
$(CC) $(CFLAGS) $(CUSEPCHFLAG) /c CRC32.C
DEFLATE.OBJ: DEFLATE.C $(DEFLATE_DEP)
$(CC) $(CFLAGS) $(CUSEPCHFLAG) /c DEFLATE.C
GZIO.OBJ: GZIO.C $(GZIO_DEP)
$(CC) $(CFLAGS) $(CUSEPCHFLAG) /c GZIO.C
INFFAST.OBJ: INFFAST.C $(INFFAST_DEP)
$(CC) $(CFLAGS) $(CUSEPCHFLAG) /c INFFAST.C
INFLATE.OBJ: INFLATE.C $(INFLATE_DEP)
$(CC) $(CFLAGS) $(CUSEPCHFLAG) /c INFLATE.C
TREES.OBJ: TREES.C $(TREES_DEP)
$(CC) $(CFLAGS) $(CUSEPCHFLAG) /c TREES.C
UNCOMPR.OBJ: UNCOMPR.C $(UNCOMPR_DEP)
$(CC) $(CFLAGS) $(CUSEPCHFLAG) /c UNCOMPR.C
ZUTIL.OBJ: ZUTIL.C $(ZUTIL_DEP)
$(CC) $(CFLAGS) $(CUSEPCHFLAG) /c ZUTIL.C
ZLIB16.RES: ZLIB16.RC $(ZLIB16_RCDEP)
$(RC) $(RCFLAGS) $(RCDEFINES) -r ZLIB16.RC
ZIP.OBJ: ZIP.C $(ZIP_DEP)
$(CC) $(CFLAGS) $(CUSEPCHFLAG) /c ZIP.C
UNZIP.OBJ: UNZIP.C $(UNZIP_DEP)
$(CC) $(CFLAGS) $(CUSEPCHFLAG) /c UNZIP.C
INFBACK.OBJ: INFBACK.C $(INFBACK_DEP)
$(CC) $(CFLAGS) $(CUSEPCHFLAG) /c INFBACK.C
IOAPI.OBJ: IOAPI.C $(IOAPI_DEP)
$(CC) $(CFLAGS) $(CUSEPCHFLAG) /c IOAPI.C
INFTREES.OBJ: INFTREES.C $(INFTREES_DEP)
$(CC) $(CFLAGS) $(CUSEPCHFLAG) /c INFTREES.C
$(PROJ).DLL:: ZLIB16.RES
$(PROJ).DLL:: ADLER32.OBJ COMPRESS.OBJ CRC32.OBJ DEFLATE.OBJ GZIO.OBJ INFFAST.OBJ \
INFLATE.OBJ TREES.OBJ UNCOMPR.OBJ ZUTIL.OBJ ZIP.OBJ UNZIP.OBJ INFBACK.OBJ IOAPI.OBJ \
INFTREES.OBJ $(OBJS_EXT) $(DEFFILE)
echo >NUL @<<$(PROJ).CRF
ADLER32.OBJ +
COMPRESS.OBJ +
CRC32.OBJ +
DEFLATE.OBJ +
GZIO.OBJ +
INFFAST.OBJ +
INFLATE.OBJ +
TREES.OBJ +
UNCOMPR.OBJ +
ZUTIL.OBJ +
ZIP.OBJ +
UNZIP.OBJ +
INFBACK.OBJ +
IOAPI.OBJ +
INFTREES.OBJ +
$(OBJS_EXT)
$(PROJ).DLL
$(MAPFILE)
C:\MSVC\LIB\+
C:\MSVC\MFC\LIB\+
E:\PROGRAMFILES\MICROSOFTVISUALSTUDIO.NET\FRAMEWORKSDK\LIB\+
$(LIBS)
$(DEFFILE);
<<
link $(LFLAGS) @$(PROJ).CRF
$(RC) $(RESFLAGS) ZLIB16.RES $@
@copy $(PROJ).CRF MSVC.BND
implib /nowep $(PROJ).LIB $(PROJ).DLL
$(PROJ).DLL:: ZLIB16.RES
if not exist MSVC.BND $(RC) $(RESFLAGS) ZLIB16.RES $@
run: $(PROJ).DLL
$(PROJ) $(RUNFLAGS)
$(PROJ).BSC: $(SBRS)
bscmake @<<
/o$@ $(SBRS)
<<

33
contrib/vstudio/vc15_16/zlib16.rc Normal file
View File

@ -0,0 +1,33 @@
#include <windows.h>
#include <ver.h>
#define IDR_VERSION1 1
IDR_VERSION1 VERSIONINFO MOVEABLE IMPURE LOADONCALL DISCARDABLE
FILEVERSION 1,2,0,0
PRODUCTVERSION 1,2,0,0
FILEFLAGSMASK VS_FFI_FILEFLAGSMASK
FILEFLAGS 0
FILEOS VOS_DOS_WINDOWS16
FILETYPE VFT_DLL
FILESUBTYPE 0 // not used
BEGIN
BLOCK "StringFileInfo"
BEGIN
BLOCK "040904E4"
//language ID = U.S. English, char set = Windows, Multilingual
BEGIN
VALUE "FileDescription", "zlib data compression library\0"
VALUE "FileVersion", "1.2.0\0"
VALUE "InternalName", "zlib16\0"
VALUE "OriginalFilename", "zlib16.dll\0"
VALUE "ProductName", "ZLib16.DLL\0"
VALUE "Comments","DLL support by Alessandro Iacopetti & Gilles Vollant\0"
VALUE "LegalCopyright", "(C) 1995-2003 Jean-loup Gailly & Mark Adler\0"
END
END
BLOCK "VarFileInfo"
BEGIN
VALUE "Translation", 0x0409, 1252
END
END

905
contrib/vstudio/vc70_32/gvmat32.asm Normal file
View File

@ -0,0 +1,905 @@
;
; gvmat32.asm -- Asm portion of the optimized longest_match for 32 bits x86
; Copyright (C) 1995-1996 Jean-loup Gailly and Gilles Vollant.
; File written by Gilles Vollant, by modifiying the longest_match
; from Jean-loup Gailly in deflate.c
; It need wmask == 0x7fff
; (assembly code is faster with a fixed wmask)
;
; For Visual C++ 4.2 and ML 6.11c (version in directory \MASM611C of Win95 DDK)
; I compile with : "ml /coff /Zi /c gvmat32.asm"
;
;uInt longest_match_7fff(s, cur_match)
; deflate_state *s;
; IPos cur_match; /* current match */
NbStack equ 76
cur_match equ dword ptr[esp+NbStack-0]
str_s equ dword ptr[esp+NbStack-4]
; 5 dword on top (ret,ebp,esi,edi,ebx)
adrret equ dword ptr[esp+NbStack-8]
pushebp equ dword ptr[esp+NbStack-12]
pushedi equ dword ptr[esp+NbStack-16]
pushesi equ dword ptr[esp+NbStack-20]
pushebx equ dword ptr[esp+NbStack-24]
chain_length equ dword ptr [esp+NbStack-28]
limit equ dword ptr [esp+NbStack-32]
best_len equ dword ptr [esp+NbStack-36]
window equ dword ptr [esp+NbStack-40]
prev equ dword ptr [esp+NbStack-44]
scan_start equ word ptr [esp+NbStack-48]
wmask equ dword ptr [esp+NbStack-52]
match_start_ptr equ dword ptr [esp+NbStack-56]
nice_match equ dword ptr [esp+NbStack-60]
scan equ dword ptr [esp+NbStack-64]
windowlen equ dword ptr [esp+NbStack-68]
match_start equ dword ptr [esp+NbStack-72]
strend equ dword ptr [esp+NbStack-76]
NbStackAdd equ (NbStack-24)
.386p
name gvmatch
.MODEL FLAT
; all the +4 offsets are due to the addition of pending_buf_size (in zlib
; in the deflate_state structure since the asm code was first written
; (if you compile with zlib 1.0.4 or older, remove the +4).
; Note : these value are good with a 8 bytes boundary pack structure
dep_chain_length equ 70h+4
dep_window equ 2ch+4
dep_strstart equ 60h+4
dep_prev_length equ 6ch+4
dep_nice_match equ 84h+4
dep_w_size equ 20h+4
dep_prev equ 34h+4
dep_w_mask equ 28h+4
dep_good_match equ 80h+4
dep_match_start equ 64h+4
dep_lookahead equ 68h+4
_TEXT segment
IFDEF NOUNDERLINE
public longest_match_7fff
public longest_match_686
; public match_init
ELSE
public _longest_match_7fff
public _longest_match_686
; public _match_init
ENDIF
MAX_MATCH equ 258
MIN_MATCH equ 3
MIN_LOOKAHEAD equ (MAX_MATCH+MIN_MATCH+1)
IFDEF NOUNDERLINE
;match_init proc near
; ret
;match_init endp
ELSE
;_match_init proc near
; ret
;_match_init endp
ENDIF
IFDEF NOUNDERLINE
longest_match_7fff proc near
ELSE
_longest_match_7fff proc near
ENDIF
mov edx,[esp+4]
push ebp
push edi
push esi
push ebx
sub esp,NbStackAdd
; initialize or check the variables used in match.asm.
mov ebp,edx
; chain_length = s->max_chain_length
; if (prev_length>=good_match) chain_length >>= 2
mov edx,[ebp+dep_chain_length]
mov ebx,[ebp+dep_prev_length]
cmp [ebp+dep_good_match],ebx
ja noshr
shr edx,2
noshr:
; we increment chain_length because in the asm, the --chain_lenght is in the beginning of the loop
inc edx
mov edi,[ebp+dep_nice_match]
mov chain_length,edx
mov eax,[ebp+dep_lookahead]
cmp eax,edi
; if ((uInt)nice_match > s->lookahead) nice_match = s->lookahead;
jae nolookaheadnicematch
mov edi,eax
nolookaheadnicematch:
; best_len = s->prev_length
mov best_len,ebx
; window = s->window
mov esi,[ebp+dep_window]
mov ecx,[ebp+dep_strstart]
mov window,esi
mov nice_match,edi
; scan = window + strstart
add esi,ecx
mov scan,esi
; dx = *window
mov dx,word ptr [esi]
; bx = *(window+best_len-1)
mov bx,word ptr [esi+ebx-1]
add esi,MAX_MATCH-1
; scan_start = *scan
mov scan_start,dx
; strend = scan + MAX_MATCH-1
mov strend,esi
; bx = scan_end = *(window+best_len-1)
; IPos limit = s->strstart > (IPos)MAX_DIST(s) ?
; s->strstart - (IPos)MAX_DIST(s) : NIL;
mov esi,[ebp+dep_w_size]
sub esi,MIN_LOOKAHEAD
; here esi = MAX_DIST(s)
sub ecx,esi
ja nodist
xor ecx,ecx
nodist:
mov limit,ecx
; prev = s->prev
mov edx,[ebp+dep_prev]
mov prev,edx
;
mov edx,dword ptr [ebp+dep_match_start]
mov bp,scan_start
mov eax,cur_match
mov match_start,edx
mov edx,window
mov edi,edx
add edi,best_len
mov esi,prev
dec edi
; windowlen = window + best_len -1
mov windowlen,edi
jmp beginloop2
align 4
; here, in the loop
; eax = ax = cur_match
; ecx = limit
; bx = scan_end
; bp = scan_start
; edi = windowlen (window + best_len -1)
; esi = prev
;// here; chain_length <=16
normalbeg0add16:
add chain_length,16
jz exitloop
normalbeg0:
cmp word ptr[edi+eax],bx
je normalbeg2noroll
rcontlabnoroll:
; cur_match = prev[cur_match & wmask]
and eax,7fffh
mov ax,word ptr[esi+eax*2]
; if cur_match > limit, go to exitloop
cmp ecx,eax
jnb exitloop
; if --chain_length != 0, go to exitloop
dec chain_length
jnz normalbeg0
jmp exitloop
normalbeg2noroll:
; if (scan_start==*(cur_match+window)) goto normalbeg2
cmp bp,word ptr[edx+eax]
jne rcontlabnoroll
jmp normalbeg2
contloop3:
mov edi,windowlen
; cur_match = prev[cur_match & wmask]
and eax,7fffh
mov ax,word ptr[esi+eax*2]
; if cur_match > limit, go to exitloop
cmp ecx,eax
jnbexitloopshort1:
jnb exitloop
; if --chain_length != 0, go to exitloop
; begin the main loop
beginloop2:
sub chain_length,16+1
; if chain_length <=16, don't use the unrolled loop
jna normalbeg0add16
do16:
cmp word ptr[edi+eax],bx
je normalbeg2dc0
maccn MACRO lab
and eax,7fffh
mov ax,word ptr[esi+eax*2]
cmp ecx,eax
jnb exitloop
cmp word ptr[edi+eax],bx
je lab
ENDM
rcontloop0:
maccn normalbeg2dc1
rcontloop1:
maccn normalbeg2dc2
rcontloop2:
maccn normalbeg2dc3
rcontloop3:
maccn normalbeg2dc4
rcontloop4:
maccn normalbeg2dc5
rcontloop5:
maccn normalbeg2dc6
rcontloop6:
maccn normalbeg2dc7
rcontloop7:
maccn normalbeg2dc8
rcontloop8:
maccn normalbeg2dc9
rcontloop9:
maccn normalbeg2dc10
rcontloop10:
maccn short normalbeg2dc11
rcontloop11:
maccn short normalbeg2dc12
rcontloop12:
maccn short normalbeg2dc13
rcontloop13:
maccn short normalbeg2dc14
rcontloop14:
maccn short normalbeg2dc15
rcontloop15:
and eax,7fffh
mov ax,word ptr[esi+eax*2]
cmp ecx,eax
jnb exitloop
sub chain_length,16
ja do16
jmp normalbeg0add16
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
normbeg MACRO rcontlab,valsub
; if we are here, we know that *(match+best_len-1) == scan_end
cmp bp,word ptr[edx+eax]
; if (match != scan_start) goto rcontlab
jne rcontlab
; calculate the good chain_length, and we'll compare scan and match string
add chain_length,16-valsub
jmp iseq
ENDM
normalbeg2dc11:
normbeg rcontloop11,11
normalbeg2dc12:
normbeg short rcontloop12,12
normalbeg2dc13:
normbeg short rcontloop13,13
normalbeg2dc14:
normbeg short rcontloop14,14
normalbeg2dc15:
normbeg short rcontloop15,15
normalbeg2dc10:
normbeg rcontloop10,10
normalbeg2dc9:
normbeg rcontloop9,9
normalbeg2dc8:
normbeg rcontloop8,8
normalbeg2dc7:
normbeg rcontloop7,7
normalbeg2dc6:
normbeg rcontloop6,6
normalbeg2dc5:
normbeg rcontloop5,5
normalbeg2dc4:
normbeg rcontloop4,4
normalbeg2dc3:
normbeg rcontloop3,3
normalbeg2dc2:
normbeg rcontloop2,2
normalbeg2dc1:
normbeg rcontloop1,1
normalbeg2dc0:
normbeg rcontloop0,0
; we go in normalbeg2 because *(ushf*)(match+best_len-1) == scan_end
normalbeg2:
mov edi,window
cmp bp,word ptr[edi+eax]
jne contloop3 ; if *(ushf*)match != scan_start, continue
iseq:
; if we are here, we know that *(match+best_len-1) == scan_end
; and (match == scan_start)
mov edi,edx
mov esi,scan ; esi = scan
add edi,eax ; edi = window + cur_match = match
mov edx,[esi+3] ; compare manually dword at match+3
xor edx,[edi+3] ; and scan +3
jz begincompare ; if equal, go to long compare
; we will determine the unmatch byte and calculate len (in esi)
or dl,dl
je eq1rr
mov esi,3
jmp trfinval
eq1rr:
or dx,dx
je eq1
mov esi,4
jmp trfinval
eq1:
and edx,0ffffffh
jz eq11
mov esi,5
jmp trfinval
eq11:
mov esi,6
jmp trfinval
begincompare:
; here we now scan and match begin same
add edi,6
add esi,6
mov ecx,(MAX_MATCH-(2+4))/4 ; scan for at most MAX_MATCH bytes
repe cmpsd ; loop until mismatch
je trfin ; go to trfin if not unmatch
; we determine the unmatch byte
sub esi,4
mov edx,[edi-4]
xor edx,[esi]
or dl,dl
jnz trfin
inc esi
or dx,dx
jnz trfin
inc esi
and edx,0ffffffh
jnz trfin
inc esi
trfin:
sub esi,scan ; esi = len
trfinval:
; here we have finised compare, and esi contain len of equal string
cmp esi,best_len ; if len > best_len, go newbestlen
ja short newbestlen
; now we restore edx, ecx and esi, for the big loop
mov esi,prev
mov ecx,limit
mov edx,window
jmp contloop3
newbestlen:
mov best_len,esi ; len become best_len
mov match_start,eax ; save new position as match_start
cmp esi,nice_match ; if best_len >= nice_match, exit
jae exitloop
mov ecx,scan
mov edx,window ; restore edx=window
add ecx,esi
add esi,edx
dec esi
mov windowlen,esi ; windowlen = window + best_len-1
mov bx,[ecx-1] ; bx = *(scan+best_len-1) = scan_end
; now we restore ecx and esi, for the big loop :
mov esi,prev
mov ecx,limit
jmp contloop3
exitloop:
; exit : s->match_start=match_start
mov ebx,match_start
mov ebp,str_s
mov ecx,best_len
mov dword ptr [ebp+dep_match_start],ebx
mov eax,dword ptr [ebp+dep_lookahead]
cmp ecx,eax
ja minexlo
mov eax,ecx
minexlo:
; return min(best_len,s->lookahead)
; restore stack and register ebx,esi,edi,ebp
add esp,NbStackAdd
pop ebx
pop esi
pop edi
pop ebp
ret
InfoAuthor:
; please don't remove this string !
; Your are free use gvmat32 in any fre or commercial apps if you don't remove the string in the binary!
db 0dh,0ah,"GVMat32 optimised assembly code written 1996-98 by Gilles Vollant",0dh,0ah
IFDEF NOUNDERLINE
longest_match_7fff endp
ELSE
_longest_match_7fff endp
ENDIF
IFDEF NOUNDERLINE
cpudetect32 proc near
ELSE
_cpudetect32 proc near
ENDIF
push ebx
pushfd ; push original EFLAGS
pop eax ; get original EFLAGS
mov ecx, eax ; save original EFLAGS
xor eax, 40000h ; flip AC bit in EFLAGS
push eax ; save new EFLAGS value on stack
popfd ; replace current EFLAGS value
pushfd ; get new EFLAGS
pop eax ; store new EFLAGS in EAX
xor eax, ecx ; can’t toggle AC bit, processor=80386
jz end_cpu_is_386 ; jump if 80386 processor
push ecx
popfd ; restore AC bit in EFLAGS first
pushfd
pushfd
pop ecx
mov eax, ecx ; get original EFLAGS
xor eax, 200000h ; flip ID bit in EFLAGS
push eax ; save new EFLAGS value on stack
popfd ; replace current EFLAGS value
pushfd ; get new EFLAGS
pop eax ; store new EFLAGS in EAX
popfd ; restore original EFLAGS
xor eax, ecx ; can’t toggle ID bit,
je is_old_486 ; processor=old
mov eax,1
db 0fh,0a2h ;CPUID
exitcpudetect:
pop ebx
ret
end_cpu_is_386:
mov eax,0300h
jmp exitcpudetect
is_old_486:
mov eax,0400h
jmp exitcpudetect
IFDEF NOUNDERLINE
cpudetect32 endp
ELSE
_cpudetect32 endp
ENDIF
MAX_MATCH equ 258
MIN_MATCH equ 3
MIN_LOOKAHEAD equ (MAX_MATCH + MIN_MATCH + 1)
MAX_MATCH_8_ equ ((MAX_MATCH + 7) AND 0FFF0h)
;;; stack frame offsets
chainlenwmask equ esp + 0 ; high word: current chain len
; low word: s->wmask
window equ esp + 4 ; local copy of s->window
windowbestlen equ esp + 8 ; s->window + bestlen
scanstart equ esp + 16 ; first two bytes of string
scanend equ esp + 12 ; last two bytes of string
scanalign equ esp + 20 ; dword-misalignment of string
nicematch equ esp + 24 ; a good enough match size
bestlen equ esp + 28 ; size of best match so far
scan equ esp + 32 ; ptr to string wanting match
LocalVarsSize equ 36
; saved ebx byte esp + 36
; saved edi byte esp + 40
; saved esi byte esp + 44
; saved ebp byte esp + 48
; return address byte esp + 52
deflatestate equ esp + 56 ; the function arguments
curmatch equ esp + 60
;;; Offsets for fields in the deflate_state structure. These numbers
;;; are calculated from the definition of deflate_state, with the
;;; assumption that the compiler will dword-align the fields. (Thus,
;;; changing the definition of deflate_state could easily cause this
;;; program to crash horribly, without so much as a warning at
;;; compile time. Sigh.)
dsWSize equ 36
dsWMask equ 44
dsWindow equ 48
dsPrev equ 56
dsMatchLen equ 88
dsPrevMatch equ 92
dsStrStart equ 100
dsMatchStart equ 104
dsLookahead equ 108
dsPrevLen equ 112
dsMaxChainLen equ 116
dsGoodMatch equ 132
dsNiceMatch equ 136
;;; match.asm -- Pentium-Pro-optimized version of longest_match()
;;; Written for zlib 1.1.2
;;; Copyright (C) 1998 Brian Raiter <breadbox@muppetlabs.com>
;;; You can look at http://www.muppetlabs.com/~breadbox/software/assembly.html
;;;
;;; This is free software; you can redistribute it and/or modify it
;;; under the terms of the GNU General Public License.
;GLOBAL _longest_match, _match_init
;SECTION .text
;;; uInt longest_match(deflate_state *deflatestate, IPos curmatch)
;_longest_match:
IFDEF NOUNDERLINE
longest_match_686 proc near
ELSE
_longest_match_686 proc near
ENDIF
;;; Save registers that the compiler may be using, and adjust esp to
;;; make room for our stack frame.
push ebp
push edi
push esi
push ebx
sub esp, LocalVarsSize
;;; Retrieve the function arguments. ecx will hold cur_match
;;; throughout the entire function. edx will hold the pointer to the
;;; deflate_state structure during the function's setup (before
;;; entering the main loop.
mov edx, [deflatestate]
mov ecx, [curmatch]
;;; uInt wmask = s->w_mask;
;;; unsigned chain_length = s->max_chain_length;
;;; if (s->prev_length >= s->good_match) {
;;; chain_length >>= 2;
;;; }
mov eax, [edx + dsPrevLen]
mov ebx, [edx + dsGoodMatch]
cmp eax, ebx
mov eax, [edx + dsWMask]
mov ebx, [edx + dsMaxChainLen]
jl LastMatchGood
shr ebx, 2
LastMatchGood:
;;; chainlen is decremented once beforehand so that the function can
;;; use the sign flag instead of the zero flag for the exit test.
;;; It is then shifted into the high word, to make room for the wmask
;;; value, which it will always accompany.
dec ebx
shl ebx, 16
or ebx, eax
mov [chainlenwmask], ebx
;;; if ((uInt)nice_match > s->lookahead) nice_match = s->lookahead;
mov eax, [edx + dsNiceMatch]
mov ebx, [edx + dsLookahead]
cmp ebx, eax
jl LookaheadLess
mov ebx, eax
LookaheadLess: mov [nicematch], ebx
;;; register Bytef *scan = s->window + s->strstart;
mov esi, [edx + dsWindow]
mov [window], esi
mov ebp, [edx + dsStrStart]
lea edi, [esi + ebp]
mov [scan], edi
;;; Determine how many bytes the scan ptr is off from being
;;; dword-aligned.
mov eax, edi
neg eax
and eax, 3
mov [scanalign], eax
;;; IPos limit = s->strstart > (IPos)MAX_DIST(s) ?
;;; s->strstart - (IPos)MAX_DIST(s) : NIL;
mov eax, [edx + dsWSize]
sub eax, MIN_LOOKAHEAD
sub ebp, eax
jg LimitPositive
xor ebp, ebp
LimitPositive:
;;; int best_len = s->prev_length;
mov eax, [edx + dsPrevLen]
mov [bestlen], eax
;;; Store the sum of s->window + best_len in esi locally, and in esi.
add esi, eax
mov [windowbestlen], esi
;;; register ush scan_start = *(ushf*)scan;
;;; register ush scan_end = *(ushf*)(scan+best_len-1);
;;; Posf *prev = s->prev;
movzx ebx, word ptr [edi]
mov [scanstart], ebx
movzx ebx, word ptr [edi + eax - 1]
mov [scanend], ebx
mov edi, [edx + dsPrev]
;;; Jump into the main loop.
mov edx, [chainlenwmask]
jmp short LoopEntry
align 4
;;; do {
;;; match = s->window + cur_match;
;;; if (*(ushf*)(match+best_len-1) != scan_end ||
;;; *(ushf*)match != scan_start) continue;
;;; [...]
;;; } while ((cur_match = prev[cur_match & wmask]) > limit
;;; && --chain_length != 0);
;;;
;;; Here is the inner loop of the function. The function will spend the
;;; majority of its time in this loop, and majority of that time will
;;; be spent in the first ten instructions.
;;;
;;; Within this loop:
;;; ebx = scanend
;;; ecx = curmatch
;;; edx = chainlenwmask - i.e., ((chainlen << 16) | wmask)
;;; esi = windowbestlen - i.e., (window + bestlen)
;;; edi = prev
;;; ebp = limit
LookupLoop:
and ecx, edx
movzx ecx, word ptr [edi + ecx*2]
cmp ecx, ebp
jbe LeaveNow
sub edx, 00010000h
js LeaveNow
LoopEntry: movzx eax, word ptr [esi + ecx - 1]
cmp eax, ebx
jnz LookupLoop
mov eax, [window]
movzx eax, word ptr [eax + ecx]
cmp eax, [scanstart]
jnz LookupLoop
;;; Store the current value of chainlen.
mov [chainlenwmask], edx
;;; Point edi to the string under scrutiny, and esi to the string we
;;; are hoping to match it up with. In actuality, esi and edi are
;;; both pointed (MAX_MATCH_8 - scanalign) bytes ahead, and edx is
;;; initialized to -(MAX_MATCH_8 - scanalign).
mov esi, [window]
mov edi, [scan]
add esi, ecx
mov eax, [scanalign]
mov edx, 0fffffef8h; -(MAX_MATCH_8)
lea edi, [edi + eax + 0108h] ;MAX_MATCH_8]
lea esi, [esi + eax + 0108h] ;MAX_MATCH_8]
;;; Test the strings for equality, 8 bytes at a time. At the end,
;;; adjust edx so that it is offset to the exact byte that mismatched.
;;;
;;; We already know at this point that the first three bytes of the
;;; strings match each other, and they can be safely passed over before
;;; starting the compare loop. So what this code does is skip over 0-3
;;; bytes, as much as necessary in order to dword-align the edi
;;; pointer. (esi will still be misaligned three times out of four.)
;;;
;;; It should be confessed that this loop usually does not represent
;;; much of the total running time. Replacing it with a more
;;; straightforward "rep cmpsb" would not drastically degrade
;;; performance.
LoopCmps:
mov eax, [esi + edx]
xor eax, [edi + edx]
jnz LeaveLoopCmps
mov eax, [esi + edx + 4]
xor eax, [edi + edx + 4]
jnz LeaveLoopCmps4
add edx, 8
jnz LoopCmps
jmp short LenMaximum
LeaveLoopCmps4: add edx, 4
LeaveLoopCmps: test eax, 0000FFFFh
jnz LenLower
add edx, 2
shr eax, 16
LenLower: sub al, 1
adc edx, 0
;;; Calculate the length of the match. If it is longer than MAX_MATCH,
;;; then automatically accept it as the best possible match and leave.
lea eax, [edi + edx]
mov edi, [scan]
sub eax, edi
cmp eax, MAX_MATCH
jge LenMaximum
;;; If the length of the match is not longer than the best match we
;;; have so far, then forget it and return to the lookup loop.
mov edx, [deflatestate]
mov ebx, [bestlen]
cmp eax, ebx
jg LongerMatch
mov esi, [windowbestlen]
mov edi, [edx + dsPrev]
mov ebx, [scanend]
mov edx, [chainlenwmask]
jmp LookupLoop
;;; s->match_start = cur_match;
;;; best_len = len;
;;; if (len >= nice_match) break;
;;; scan_end = *(ushf*)(scan+best_len-1);
LongerMatch: mov ebx, [nicematch]
mov [bestlen], eax
mov [edx + dsMatchStart], ecx
cmp eax, ebx
jge LeaveNow
mov esi, [window]
add esi, eax
mov [windowbestlen], esi
movzx ebx, word ptr [edi + eax - 1]
mov edi, [edx + dsPrev]
mov [scanend], ebx
mov edx, [chainlenwmask]
jmp LookupLoop
;;; Accept the current string, with the maximum possible length.
LenMaximum: mov edx, [deflatestate]
mov dword ptr [bestlen], MAX_MATCH
mov [edx + dsMatchStart], ecx
;;; if ((uInt)best_len <= s->lookahead) return (uInt)best_len;
;;; return s->lookahead;
LeaveNow:
mov edx, [deflatestate]
mov ebx, [bestlen]
mov eax, [edx + dsLookahead]
cmp ebx, eax
jg LookaheadRet
mov eax, ebx
LookaheadRet:
;;; Restore the stack and return from whence we came.
add esp, LocalVarsSize
pop ebx
pop esi
pop edi
pop ebp
ret
; please don't remove this string !
; Your are free use gvmat32 in any fre or commercial apps if you don't remove the string in the binary!
db 0dh,0ah,"asm686 with masm, code optimised assembly code from Brian Raiter, written 1998",0dh,0ah
IFDEF NOUNDERLINE
longest_match_686 endp
ELSE
_longest_match_686 endp
ENDIF
_TEXT ends
end

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contrib/vstudio/vc70_32/gvmat32.obj Normal file
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contrib/vstudio/vc70_32/gvmat32c.c Normal file
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/* gvmat32.c -- C portion of the optimized longest_match for 32 bits x86
* Copyright (C) 1995-1996 Jean-loup Gailly and Gilles Vollant.
* File written by Gilles Vollant, by modifiying the longest_match
* from Jean-loup Gailly in deflate.c
* it prepare all parameters and call the assembly longest_match_gvasm
* longest_match execute standard C code is wmask != 0x7fff
* (assembly code is faster with a fixed wmask)
*
*/
#include "deflate.h"
#undef FAR
//#include <windows.h>
#ifdef ASMV
#define NIL 0
#define UNALIGNED_OK
/* if your C compiler don't add underline before function name,
define ADD_UNDERLINE_ASMFUNC */
#ifdef ADD_UNDERLINE_ASMFUNC
#define longest_match_7fff _longest_match_7fff
#define longest_match_686 _longest_match_686
#define cpudetect32 _cpudetect32
#endif
void match_init()
{
}
unsigned long cpudetect32();
uInt longest_match_c(
deflate_state *s,
IPos cur_match); /* current match */
uInt longest_match_7fff(
deflate_state *s,
IPos cur_match); /* current match */
uInt longest_match_686(
deflate_state *s,
IPos cur_match); /* current match */
uInt longest_match(
deflate_state *s,
IPos cur_match) /* current match */
{
static uInt iIsPPro=2;
if ((s->w_mask == 0x7fff) && (iIsPPro==0))
return longest_match_7fff(s,cur_match);
if (iIsPPro==1)
return longest_match_686(s,cur_match);
if (iIsPPro==2)
iIsPPro = (((cpudetect32()/0x100)&0xf)>=6) ? 1 : 0;
return longest_match_c(s,cur_match);
}
uInt longest_match_c(s, cur_match)
deflate_state *s;
IPos cur_match; /* current match */
{
unsigned chain_length = s->max_chain_length;/* max hash chain length */
register Bytef *scan = s->window + s->strstart; /* current string */
register Bytef *match; /* matched string */
register int len; /* length of current match */
int best_len = s->prev_length; /* best match length so far */
int nice_match = s->nice_match; /* stop if match long enough */
IPos limit = s->strstart > (IPos)MAX_DIST(s) ?
s->strstart - (IPos)MAX_DIST(s) : NIL;
/* Stop when cur_match becomes <= limit. To simplify the code,
* we prevent matches with the string of window index 0.
*/
Posf *prev = s->prev;
uInt wmask = s->w_mask;
#ifdef UNALIGNED_OK
/* Compare two bytes at a time. Note: this is not always beneficial.
* Try with and without -DUNALIGNED_OK to check.
*/
register Bytef *strend = s->window + s->strstart + MAX_MATCH - 1;
register ush scan_start = *(ushf*)scan;
register ush scan_end = *(ushf*)(scan+best_len-1);
#else
register Bytef *strend = s->window + s->strstart + MAX_MATCH;
register Byte scan_end1 = scan[best_len-1];
register Byte scan_end = scan[best_len];
#endif
/* The code is optimized for HASH_BITS >= 8 and MAX_MATCH-2 multiple of 16.
* It is easy to get rid of this optimization if necessary.
*/
Assert(s->hash_bits >= 8 && MAX_MATCH == 258, "Code too clever");
/* Do not waste too much time if we already have a good match: */
if (s->prev_length >= s->good_match) {
chain_length >>= 2;
}
/* Do not look for matches beyond the end of the input. This is necessary
* to make deflate deterministic.
*/
if ((uInt)nice_match > s->lookahead) nice_match = s->lookahead;
Assert((ulg)s->strstart <= s->window_size-MIN_LOOKAHEAD, "need lookahead");
do {
Assert(cur_match < s->strstart, "no future");
match = s->window + cur_match;
/* Skip to next match if the match length cannot increase
* or if the match length is less than 2:
*/
#if (defined(UNALIGNED_OK) && MAX_MATCH == 258)
/* This code assumes sizeof(unsigned short) == 2. Do not use
* UNALIGNED_OK if your compiler uses a different size.
*/
if (*(ushf*)(match+best_len-1) != scan_end ||
*(ushf*)match != scan_start) continue;
/* It is not necessary to compare scan[2] and match[2] since they are
* always equal when the other bytes match, given that the hash keys
* are equal and that HASH_BITS >= 8. Compare 2 bytes at a time at
* strstart+3, +5, ... up to strstart+257. We check for insufficient
* lookahead only every 4th comparison; the 128th check will be made
* at strstart+257. If MAX_MATCH-2 is not a multiple of 8, it is
* necessary to put more guard bytes at the end of the window, or
* to check more often for insufficient lookahead.
*/
Assert(scan[2] == match[2], "scan[2]?");
scan++, match++;
do {
} while (*(ushf*)(scan+=2) == *(ushf*)(match+=2) &&
*(ushf*)(scan+=2) == *(ushf*)(match+=2) &&
*(ushf*)(scan+=2) == *(ushf*)(match+=2) &&
*(ushf*)(scan+=2) == *(ushf*)(match+=2) &&
scan < strend);
/* The funny "do {}" generates better code on most compilers */
/* Here, scan <= window+strstart+257 */
Assert(scan <= s->window+(unsigned)(s->window_size-1), "wild scan");
if (*scan == *match) scan++;
len = (MAX_MATCH - 1) - (int)(strend-scan);
scan = strend - (MAX_MATCH-1);
#else /* UNALIGNED_OK */
if (match[best_len] != scan_end ||
match[best_len-1] != scan_end1 ||
*match != *scan ||
*++match != scan[1]) continue;
/* The check at best_len-1 can be removed because it will be made
* again later. (This heuristic is not always a win.)
* It is not necessary to compare scan[2] and match[2] since they
* are always equal when the other bytes match, given that
* the hash keys are equal and that HASH_BITS >= 8.
*/
scan += 2, match++;
Assert(*scan == *match, "match[2]?");
/* We check for insufficient lookahead only every 8th comparison;
* the 256th check will be made at strstart+258.
*/
do {
} while (*++scan == *++match && *++scan == *++match &&
*++scan == *++match && *++scan == *++match &&
*++scan == *++match && *++scan == *++match &&
*++scan == *++match && *++scan == *++match &&
scan < strend);
Assert(scan <= s->window+(unsigned)(s->window_size-1), "wild scan");
len = MAX_MATCH - (int)(strend - scan);
scan = strend - MAX_MATCH;
#endif /* UNALIGNED_OK */
if (len > best_len) {
s->match_start = cur_match;
best_len = len;
if (len >= nice_match) break;
#ifdef UNALIGNED_OK
scan_end = *(ushf*)(scan+best_len-1);
#else
scan_end1 = scan[best_len-1];
scan_end = scan[best_len];
#endif
}
} while ((cur_match = prev[cur_match & wmask]) > limit
&& --chain_length != 0);
if ((uInt)best_len <= s->lookahead) return (uInt)best_len;
return s->lookahead;
}
#endif /* ASMV */

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contrib/vstudio/vc70_32/inffastAsm.obj Normal file
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contrib/vstudio/vc70_32/miniunz.vcproj Normal file
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<?xml version="1.0" encoding = "Windows-1252"?>
<VisualStudioProject
ProjectType="Visual C++"
Version="7.00"
Name="miniunz"
ProjectGUID="{C52F9E7B-498A-42BE-8DB4-85A15694382A}"
Keyword="Win32Proj">
<Platforms>
<Platform
Name="Win32"/>
</Platforms>
<Configurations>
<Configuration
Name="Debug|Win32"
OutputDirectory="Debug"
IntermediateDirectory="Debug"
ConfigurationType="1"
CharacterSet="2">
<Tool
Name="VCCLCompilerTool"
Optimization="0"
PreprocessorDefinitions="WIN32;_DEBUG;_CONSOLE"
MinimalRebuild="TRUE"
BasicRuntimeChecks="3"
RuntimeLibrary="5"
UsePrecompiledHeader="0"
WarningLevel="3"
Detect64BitPortabilityProblems="TRUE"
DebugInformationFormat="4"/>
<Tool
Name="VCCustomBuildTool"/>
<Tool
Name="VCLinkerTool"
OutputFile="$(OutDir)/miniunz.exe"
LinkIncremental="2"
GenerateDebugInformation="TRUE"
ProgramDatabaseFile="$(OutDir)/miniunz.pdb"
SubSystem="1"
TargetMachine="1"/>
<Tool
Name="VCMIDLTool"/>
<Tool
Name="VCPostBuildEventTool"/>
<Tool
Name="VCPreBuildEventTool"/>
<Tool
Name="VCPreLinkEventTool"/>
<Tool
Name="VCResourceCompilerTool"/>
<Tool
Name="VCWebServiceProxyGeneratorTool"/>
<Tool
Name="VCWebDeploymentTool"/>
</Configuration>
<Configuration
Name="Release|Win32"
OutputDirectory="Release"
IntermediateDirectory="Release"
ConfigurationType="1"
CharacterSet="2">
<Tool
Name="VCCLCompilerTool"
Optimization="2"
InlineFunctionExpansion="1"
OmitFramePointers="TRUE"
PreprocessorDefinitions="WIN32;NDEBUG;_CONSOLE"
StringPooling="TRUE"
RuntimeLibrary="4"
EnableFunctionLevelLinking="TRUE"
UsePrecompiledHeader="0"
WarningLevel="3"
Detect64BitPortabilityProblems="TRUE"
DebugInformationFormat="3"/>
<Tool
Name="VCCustomBuildTool"/>
<Tool
Name="VCLinkerTool"
OutputFile="$(OutDir)/miniunz.exe"
LinkIncremental="1"
GenerateDebugInformation="TRUE"
SubSystem="1"
OptimizeReferences="2"
EnableCOMDATFolding="2"
OptimizeForWindows98="1"
TargetMachine="1"/>
<Tool
Name="VCMIDLTool"/>
<Tool
Name="VCPostBuildEventTool"/>
<Tool
Name="VCPreBuildEventTool"/>
<Tool
Name="VCPreLinkEventTool"/>
<Tool
Name="VCResourceCompilerTool"/>
<Tool
Name="VCWebServiceProxyGeneratorTool"/>
<Tool
Name="VCWebDeploymentTool"/>
</Configuration>
</Configurations>
<Files>
<Filter
Name="Source Files"
Filter="cpp;c;cxx;def;odl;idl;hpj;bat;asm">
<File
RelativePath="miniunz.c">
</File>
</Filter>
<Filter
Name="Header Files"
Filter="h;hpp;hxx;hm;inl;inc">
</Filter>
<Filter
Name="Resource Files"
Filter="rc;ico;cur;bmp;dlg;rc2;rct;bin;rgs;gif;jpg;jpeg;jpe">
</Filter>
<File
RelativePath="zlib.lib">
</File>
</Files>
<Globals>
</Globals>
</VisualStudioProject>

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<?xml version="1.0" encoding = "Windows-1252"?>
<VisualStudioProject
ProjectType="Visual C++"
Version="7.00"
Name="minizip"
ProjectGUID="{48CDD9DC-E09F-4135-9C0C-4FE50C3C654B}"
Keyword="Win32Proj">
<Platforms>
<Platform
Name="Win32"/>
</Platforms>
<Configurations>
<Configuration
Name="Debug|Win32"
OutputDirectory="Debug"
IntermediateDirectory="Debug"
ConfigurationType="1"
CharacterSet="2">
<Tool
Name="VCCLCompilerTool"
Optimization="0"
PreprocessorDefinitions="WIN32;_DEBUG;_CONSOLE"
MinimalRebuild="TRUE"
BasicRuntimeChecks="3"
RuntimeLibrary="5"
UsePrecompiledHeader="0"
WarningLevel="3"
Detect64BitPortabilityProblems="TRUE"
DebugInformationFormat="4"/>
<Tool
Name="VCCustomBuildTool"/>
<Tool
Name="VCLinkerTool"
OutputFile="$(OutDir)/minizip.exe"
LinkIncremental="2"
GenerateDebugInformation="TRUE"
ProgramDatabaseFile="$(OutDir)/minizip.pdb"
SubSystem="1"
TargetMachine="1"/>
<Tool
Name="VCMIDLTool"/>
<Tool
Name="VCPostBuildEventTool"/>
<Tool
Name="VCPreBuildEventTool"/>
<Tool
Name="VCPreLinkEventTool"/>
<Tool
Name="VCResourceCompilerTool"/>
<Tool
Name="VCWebServiceProxyGeneratorTool"/>
<Tool
Name="VCWebDeploymentTool"/>
</Configuration>
<Configuration
Name="Release|Win32"
OutputDirectory="Release"
IntermediateDirectory="Release"
ConfigurationType="1"
CharacterSet="2">
<Tool
Name="VCCLCompilerTool"
Optimization="2"
InlineFunctionExpansion="1"
OmitFramePointers="TRUE"
PreprocessorDefinitions="WIN32;NDEBUG;_CONSOLE"
StringPooling="TRUE"
RuntimeLibrary="4"
EnableFunctionLevelLinking="TRUE"
UsePrecompiledHeader="0"
WarningLevel="3"
Detect64BitPortabilityProblems="TRUE"
DebugInformationFormat="3"/>
<Tool
Name="VCCustomBuildTool"/>
<Tool
Name="VCLinkerTool"
OutputFile="$(OutDir)/minizip.exe"
LinkIncremental="1"
GenerateDebugInformation="TRUE"
SubSystem="1"
OptimizeReferences="2"
EnableCOMDATFolding="2"
OptimizeForWindows98="1"
TargetMachine="1"/>
<Tool
Name="VCMIDLTool"/>
<Tool
Name="VCPostBuildEventTool"/>
<Tool
Name="VCPreBuildEventTool"/>
<Tool
Name="VCPreLinkEventTool"/>
<Tool
Name="VCResourceCompilerTool"/>
<Tool
Name="VCWebServiceProxyGeneratorTool"/>
<Tool
Name="VCWebDeploymentTool"/>
</Configuration>
</Configurations>
<Files>
<Filter
Name="Source Files"
Filter="cpp;c;cxx;def;odl;idl;hpj;bat;asm">
<File
RelativePath="minizip.c">
</File>
</Filter>
<Filter
Name="Header Files"
Filter="h;hpp;hxx;hm;inl;inc">
</Filter>
<Filter
Name="Resource Files"
Filter="rc;ico;cur;bmp;dlg;rc2;rct;bin;rgs;gif;jpg;jpeg;jpe">
</Filter>
<File
RelativePath="zlib.lib">
</File>
</Files>
<Globals>
</Globals>
</VisualStudioProject>

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contrib/vstudio/vc70_32/mkgvmt32.bat Normal file
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c:\masm611\bin\ml /coff /Zi /c /Flgvmat32.lst gvmat32.asm
c:\masm611\bin\ml /coff /Zi /c /FlinffastAsm.lst inffastAsm.asm

32
contrib/vstudio/vc70_32/zlib.rc Normal file
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#include <windows.h>
#define IDR_VERSION1 1
IDR_VERSION1 VERSIONINFO MOVEABLE IMPURE LOADONCALL DISCARDABLE
FILEVERSION 1,2,0,0
PRODUCTVERSION 1,2,0,0
FILEFLAGSMASK VS_FFI_FILEFLAGSMASK
FILEFLAGS 0
FILEOS VOS_DOS_WINDOWS32
FILETYPE VFT_DLL
FILESUBTYPE 0 // not used
BEGIN
BLOCK "StringFileInfo"
BEGIN
BLOCK "040904E4"
//language ID = U.S. English, char set = Windows, Multilingual
BEGIN
VALUE "FileDescription", "zlib data compression library\0"
VALUE "FileVersion", "1.2.0.0\0"
VALUE "InternalName", "zlib\0"
VALUE "OriginalFilename", "zlib.dll\0"
VALUE "ProductName", "ZLib.DLL\0"
VALUE "Comments","DLL support by Alessandro Iacopetti & Gilles Vollant\0"
VALUE "LegalCopyright", "(C) 1995-2003 Jean-loup Gailly & Mark Adler\0"
END
END
BLOCK "VarFileInfo"
BEGIN
VALUE "Translation", 0x0409, 1252
END
END

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<?xml version="1.0" encoding = "Windows-1252"?>
<VisualStudioProject
ProjectType="Visual C++"
Version="7.00"
Name="zlibstat"
SccProjectName=""
SccLocalPath="">
<Platforms>
<Platform
Name="Win32"/>
</Platforms>
<Configurations>
<Configuration
Name="Debug|Win32"
OutputDirectory=".\zlibstatDebug"
IntermediateDirectory=".\zlibstatDebug"
ConfigurationType="4"
UseOfMFC="0"
ATLMinimizesCRunTimeLibraryUsage="FALSE">
<Tool
Name="VCCLCompilerTool"
Optimization="0"
PreprocessorDefinitions="WIN32"
ExceptionHandling="FALSE"
RuntimeLibrary="5"
PrecompiledHeaderFile=".\zlibstatDebug/zlibstat.pch"
AssemblerListingLocation=".\zlibstatDebug/"
ObjectFile=".\zlibstatDebug/"
ProgramDataBaseFileName=".\zlibstatDebug/"
WarningLevel="3"
SuppressStartupBanner="TRUE"
DebugInformationFormat="1"/>
<Tool
Name="VCCustomBuildTool"/>
<Tool
Name="VCLibrarianTool"
AdditionalOptions="/NODEFAULTLIB "
OutputFile=".\zlibstatDebug\zlibstat.lib"
SuppressStartupBanner="TRUE"/>
<Tool
Name="VCMIDLTool"/>
<Tool
Name="VCPostBuildEventTool"/>
<Tool
Name="VCPreBuildEventTool"/>
<Tool
Name="VCPreLinkEventTool"/>
<Tool
Name="VCResourceCompilerTool"
Culture="1036"/>
<Tool
Name="VCWebServiceProxyGeneratorTool"/>
</Configuration>
<Configuration
Name="ReleaseAxp|Win32"
OutputDirectory=".\zlibsta0"
IntermediateDirectory=".\zlibsta0"
ConfigurationType="4"
UseOfMFC="0"
ATLMinimizesCRunTimeLibraryUsage="FALSE">
<Tool
Name="VCCLCompilerTool"
InlineFunctionExpansion="1"
PreprocessorDefinitions="WIN32"
StringPooling="TRUE"
ExceptionHandling="FALSE"
RuntimeLibrary="4"
EnableFunctionLevelLinking="TRUE"
PrecompiledHeaderFile=".\zlibsta0/zlibstat.pch"
AssemblerListingLocation=".\zlibsta0/"
ObjectFile=".\zlibsta0/"
ProgramDataBaseFileName=".\zlibsta0/"
WarningLevel="3"
SuppressStartupBanner="TRUE"/>
<Tool
Name="VCCustomBuildTool"/>
<Tool
Name="VCLibrarianTool"
AdditionalOptions="/NODEFAULTLIB "
OutputFile=".\zlibsta0\zlibstat.lib"
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88
contrib/vstudio/vc70_32/zlibvc.def Normal file
View File

@ -0,0 +1,88 @@
LIBRARY "zlib"
VERSION 1.20
HEAPSIZE 1048576,8192
EXPORTS
adler32 @1
compress @2
crc32 @3
deflate @4
deflateCopy @5
deflateEnd @6
deflateInit2_ @7
deflateInit_ @8
deflateParams @9
deflateReset @10
deflateSetDictionary @11
gzclose @12
gzdopen @13
gzerror @14
gzflush @15
gzopen @16
gzread @17
gzwrite @18
inflate @19
inflateEnd @20
inflateInit2_ @21
inflateInit_ @22
inflateReset @23
inflateSetDictionary @24
inflateSync @25
uncompress @26
zlibVersion @27
gzprintf @28
gzputc @29
gzgetc @30
gzseek @31
gzrewind @32
gztell @33
gzeof @34
gzsetparams @35
zError @36
inflateSyncPoint @37
get_crc_table @38
compress2 @39
gzputs @40
gzgets @41
inflateCopy @42
inflateBackInit_ @43
inflateBack @44
inflateBackEnd @45
compressBound @46
unzOpen @61
unzClose @62
unzGetGlobalInfo @63
unzGetCurrentFileInfo @64
unzGoToFirstFile @65
unzGoToNextFile @66
unzOpenCurrentFile @67
unzReadCurrentFile @68
unzOpenCurrentFile3 @69
unztell @70
unzeof @71
unzCloseCurrentFile @72
unzGetGlobalComment @73
unzStringFileNameCompare @74
unzLocateFile @75
unzGetLocalExtrafield @76
unzOpen2 @77
unzOpenCurrentFile2 @78
unzOpenCurrentFilePassword @79
zipOpen @80
zipOpenNewFileInZip @81
zipWriteInFileInZip @82
zipCloseFileInZip @83
zipClose @84
zipOpenNewFileInZip2 @86
zipCloseFileInZipRaw @87
zipOpen2 @88
zipOpenNewFileInZip3 @89
unzGetFilePos @100
unzGoToFilePos @101
fill_win32_filefunc @110

66
contrib/vstudio/vc70_32/zlibvc.sln Normal file
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434
contrib/vstudio/vc70_32/zlibvc.vcproj Normal file
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@ -0,0 +1,434 @@
<?xml version="1.0" encoding = "Windows-1252"?>
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SccLocalPath="">
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<Filter
Name="Resource Files"
Filter="ico;cur;bmp;dlg;rc2;rct;bin;cnt;rtf;gif;jpg;jpeg;jpe">
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</Files>
<Globals>
</Globals>
</VisualStudioProject>

273
deflate.c
View File

@ -1,6 +1,6 @@
/* deflate.c -- compress data using the deflation algorithm
* Copyright (C) 1995-2003 Jean-loup Gailly.
* For conditions of distribution and use, see copyright notice in zlib.h
* For conditions of distribution and use, see copyright notice in zlib.h
*/
/*
@ -52,7 +52,7 @@
#include "deflate.h"
const char deflate_copyright[] =
" deflate 1.2.0 Copyright 1995-2003 Jean-loup Gailly ";
" deflate 1.2.0.1 Copyright 1995-2003 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
@ -76,17 +76,22 @@ typedef block_state (*compress_func) OF((deflate_state *s, int flush));
local void fill_window OF((deflate_state *s));
local block_state deflate_stored OF((deflate_state *s, int flush));
local block_state deflate_fast OF((deflate_state *s, int flush));
#ifndef FASTEST
local block_state deflate_slow OF((deflate_state *s, int flush));
#endif
local void lm_init OF((deflate_state *s));
local void putShortMSB OF((deflate_state *s, uInt b));
local void flush_pending OF((z_streamp strm));
local int read_buf OF((z_streamp strm, Bytef *buf, unsigned size));
#ifndef FASTEST
#ifdef ASMV
void match_init OF((void)); /* asm code initialization */
uInt longest_match OF((deflate_state *s, IPos cur_match));
#else
local uInt longest_match OF((deflate_state *s, IPos cur_match));
#endif
#endif
local uInt longest_match_fast OF((deflate_state *s, IPos cur_match));
#ifdef DEBUG
local void check_match OF((deflate_state *s, IPos start, IPos match,
@ -123,6 +128,12 @@ typedef struct config_s {
compress_func func;
} config;
#ifdef FASTEST
local const config configuration_table[2] = {
/* good lazy nice chain */
/* 0 */ {0, 0, 0, 0, deflate_stored}, /* store only */
/* 1 */ {4, 4, 8, 4, deflate_fast}}; /* maximum speed, no lazy matches */
#else
local const config configuration_table[10] = {
/* good lazy nice chain */
/* 0 */ {0, 0, 0, 0, deflate_stored}, /* store only */
@ -136,6 +147,7 @@ local const config configuration_table[10] = {
/* 7 */ {8, 32, 128, 256, deflate_slow},
/* 8 */ {32, 128, 258, 1024, deflate_slow},
/* 9 */ {32, 258, 258, 4096, deflate_slow}}; /* maximum compression */
#endif
/* Note: the deflate() code requires max_lazy >= MIN_MATCH and max_chain >= 4
* For deflate_fast() (levels <= 3) good is ignored and lazy has a different
@ -194,13 +206,13 @@ int ZEXPORT deflateInit_(strm, level, version, stream_size)
int stream_size;
{
return deflateInit2_(strm, level, Z_DEFLATED, MAX_WBITS, DEF_MEM_LEVEL,
Z_DEFAULT_STRATEGY, version, stream_size);
Z_DEFAULT_STRATEGY, version, stream_size);
/* To do: ignore strm->next_in if we use it as window */
}
/* ========================================================================= */
int ZEXPORT deflateInit2_(strm, level, method, windowBits, memLevel, strategy,
version, stream_size)
version, stream_size)
z_streamp strm;
int level;
int method;
@ -221,20 +233,21 @@ int ZEXPORT deflateInit2_(strm, level, method, windowBits, memLevel, strategy,
if (version == Z_NULL || version[0] != my_version[0] ||
stream_size != sizeof(z_stream)) {
return Z_VERSION_ERROR;
return Z_VERSION_ERROR;
}
if (strm == Z_NULL) return Z_STREAM_ERROR;
strm->msg = Z_NULL;
if (strm->zalloc == Z_NULL) {
strm->zalloc = zcalloc;
strm->opaque = (voidpf)0;
strm->zalloc = zcalloc;
strm->opaque = (voidpf)0;
}
if (strm->zfree == Z_NULL) strm->zfree = zcfree;
if (level == Z_DEFAULT_COMPRESSION) level = 6;
#ifdef FASTEST
level = 1;
if (level != 0) level = 1;
#else
if (level == Z_DEFAULT_COMPRESSION) level = 6;
#endif
if (windowBits < 0) { /* undocumented feature: suppress zlib header */
@ -243,7 +256,7 @@ int ZEXPORT deflateInit2_(strm, level, method, windowBits, memLevel, strategy,
}
if (memLevel < 1 || memLevel > MAX_MEM_LEVEL || method != Z_DEFLATED ||
windowBits < 9 || windowBits > 15 || level < 0 || level > 9 ||
strategy < 0 || strategy > Z_HUFFMAN_ONLY) {
strategy < 0 || strategy > Z_RLE) {
return Z_STREAM_ERROR;
}
s = (deflate_state *) ZALLOC(strm, 1, sizeof(deflate_state));
@ -309,9 +322,9 @@ int ZEXPORT deflateSetDictionary (strm, dictionary, dictLength)
if (length < MIN_MATCH) return Z_OK;
if (length > MAX_DIST(s)) {
length = MAX_DIST(s);
length = MAX_DIST(s);
#ifndef USE_DICT_HEAD
dictionary += dictLength - length; /* use the tail of the dictionary */
dictionary += dictLength - length; /* use the tail of the dictionary */
#endif
}
zmemcpy(s->window, dictionary, length);
@ -325,7 +338,7 @@ int ZEXPORT deflateSetDictionary (strm, dictionary, dictLength)
s->ins_h = s->window[0];
UPDATE_HASH(s, s->ins_h, s->window[1]);
for (n = 0; n <= length - MIN_MATCH; n++) {
INSERT_STRING(s, n, hash_head);
INSERT_STRING(s, n, hash_head);
}
if (hash_head) hash_head = 0; /* to make compiler happy */
return Z_OK;
@ -336,7 +349,7 @@ int ZEXPORT deflateReset (strm)
z_streamp strm;
{
deflate_state *s;
if (strm == Z_NULL || strm->state == Z_NULL ||
strm->zalloc == Z_NULL || strm->zfree == Z_NULL) return Z_STREAM_ERROR;
@ -374,24 +387,26 @@ int ZEXPORT deflateParams(strm, level, strategy)
if (strm == Z_NULL || strm->state == Z_NULL) return Z_STREAM_ERROR;
s = strm->state;
if (level == Z_DEFAULT_COMPRESSION) {
level = 6;
}
if (level < 0 || level > 9 || strategy < 0 || strategy > Z_HUFFMAN_ONLY) {
return Z_STREAM_ERROR;
#ifdef FASTEST
if (level != 0) level = 1;
#else
if (level == Z_DEFAULT_COMPRESSION) level = 6;
#endif
if (level < 0 || level > 9 || strategy < 0 || strategy > Z_RLE) {
return Z_STREAM_ERROR;
}
func = configuration_table[s->level].func;
if (func != configuration_table[level].func && strm->total_in != 0) {
/* Flush the last buffer: */
err = deflate(strm, Z_PARTIAL_FLUSH);
/* Flush the last buffer: */
err = deflate(strm, Z_PARTIAL_FLUSH);
}
if (s->level != level) {
s->level = level;
s->max_lazy_match = configuration_table[level].max_lazy;
s->good_match = configuration_table[level].good_length;
s->nice_match = configuration_table[level].nice_length;
s->max_chain_length = configuration_table[level].max_chain;
s->level = level;
s->max_lazy_match = configuration_table[level].max_lazy;
s->good_match = configuration_table[level].good_length;
s->nice_match = configuration_table[level].nice_length;
s->max_chain_length = configuration_table[level].max_chain;
}
s->strategy = strategy;
return err;
@ -449,7 +464,7 @@ local void putShortMSB (s, b)
{
put_byte(s, (Byte)(b >> 8));
put_byte(s, (Byte)(b & 0xff));
}
}
/* =========================================================================
* Flush as much pending output as possible. All deflate() output goes
@ -485,14 +500,14 @@ int ZEXPORT deflate (strm, flush)
deflate_state *s;
if (strm == Z_NULL || strm->state == Z_NULL ||
flush > Z_FINISH || flush < 0) {
flush > Z_FINISH || flush < 0) {
return Z_STREAM_ERROR;
}
s = strm->state;
if (strm->next_out == Z_NULL ||
(strm->next_in == Z_NULL && strm->avail_in != 0) ||
(s->status == FINISH_STATE && flush != Z_FINISH)) {
(s->status == FINISH_STATE && flush != Z_FINISH)) {
ERR_RETURN(strm, Z_STREAM_ERROR);
}
if (strm->avail_out == 0) ERR_RETURN(strm, Z_BUF_ERROR);
@ -509,40 +524,40 @@ int ZEXPORT deflate (strm, flush)
if (level_flags > 3) level_flags = 3;
header |= (level_flags << 6);
if (s->strstart != 0) header |= PRESET_DICT;
if (s->strstart != 0) header |= PRESET_DICT;
header += 31 - (header % 31);
s->status = BUSY_STATE;
putShortMSB(s, header);
/* Save the adler32 of the preset dictionary: */
if (s->strstart != 0) {
putShortMSB(s, (uInt)(strm->adler >> 16));
putShortMSB(s, (uInt)(strm->adler & 0xffff));
}
strm->adler = 1L;
/* Save the adler32 of the preset dictionary: */
if (s->strstart != 0) {
putShortMSB(s, (uInt)(strm->adler >> 16));
putShortMSB(s, (uInt)(strm->adler & 0xffff));
}
strm->adler = 1L;
}
/* Flush as much pending output as possible */
if (s->pending != 0) {
flush_pending(strm);
if (strm->avail_out == 0) {
/* Since avail_out is 0, deflate will be called again with
* more output space, but possibly with both pending and
* avail_in equal to zero. There won't be anything to do,
* but this is not an error situation so make sure we
* return OK instead of BUF_ERROR at next call of deflate:
/* Since avail_out is 0, deflate will be called again with
* more output space, but possibly with both pending and
* avail_in equal to zero. There won't be anything to do,
* but this is not an error situation so make sure we
* return OK instead of BUF_ERROR at next call of deflate:
*/
s->last_flush = -1;
return Z_OK;
}
s->last_flush = -1;
return Z_OK;
}
/* Make sure there is something to do and avoid duplicate consecutive
* flushes. For repeated and useless calls with Z_FINISH, we keep
* returning Z_STREAM_END instead of Z_BUFF_ERROR.
* returning Z_STREAM_END instead of Z_BUF_ERROR.
*/
} else if (strm->avail_in == 0 && flush <= old_flush &&
flush != Z_FINISH) {
flush != Z_FINISH) {
ERR_RETURN(strm, Z_BUF_ERROR);
}
@ -557,24 +572,24 @@ int ZEXPORT deflate (strm, flush)
(flush != Z_NO_FLUSH && s->status != FINISH_STATE)) {
block_state bstate;
bstate = (*(configuration_table[s->level].func))(s, flush);
bstate = (*(configuration_table[s->level].func))(s, flush);
if (bstate == finish_started || bstate == finish_done) {
s->status = FINISH_STATE;
}
if (bstate == need_more || bstate == finish_started) {
if (strm->avail_out == 0) {
s->last_flush = -1; /* avoid BUF_ERROR next call, see above */
}
return Z_OK;
/* If flush != Z_NO_FLUSH && avail_out == 0, the next call
* of deflate should use the same flush parameter to make sure
* that the flush is complete. So we don't have to output an
* empty block here, this will be done at next call. This also
* ensures that for a very small output buffer, we emit at most
* one empty block.
*/
}
if (strm->avail_out == 0) {
s->last_flush = -1; /* avoid BUF_ERROR next call, see above */
}
return Z_OK;
/* If flush != Z_NO_FLUSH && avail_out == 0, the next call
* of deflate should use the same flush parameter to make sure
* that the flush is complete. So we don't have to output an
* empty block here, this will be done at next call. This also
* ensures that for a very small output buffer, we emit at most
* one empty block.
*/
}
if (bstate == block_done) {
if (flush == Z_PARTIAL_FLUSH) {
_tr_align(s);
@ -588,10 +603,10 @@ int ZEXPORT deflate (strm, flush)
}
}
flush_pending(strm);
if (strm->avail_out == 0) {
s->last_flush = -1; /* avoid BUF_ERROR at next call, see above */
return Z_OK;
}
if (strm->avail_out == 0) {
s->last_flush = -1; /* avoid BUF_ERROR at next call, see above */
return Z_OK;
}
}
}
Assert(strm->avail_out > 0, "bug2");
@ -620,7 +635,7 @@ int ZEXPORT deflateEnd (strm)
status = strm->state->status;
if (status != INIT_STATE && status != BUSY_STATE &&
status != FINISH_STATE) {
status != FINISH_STATE) {
return Z_STREAM_ERROR;
}
@ -693,7 +708,7 @@ int ZEXPORT deflateCopy (dest, source)
ds->bl_desc.dyn_tree = ds->bl_tree;
return Z_OK;
#endif
#endif /* MAXSEG_64K */
}
/* ===========================================================================
@ -753,6 +768,7 @@ local void lm_init (s)
#endif
}
#ifndef FASTEST
/* ===========================================================================
* Set match_start to the longest match starting at the given string and
* return its length. Matches shorter or equal to prev_length are discarded,
@ -766,7 +782,6 @@ local void lm_init (s)
/* For 80x86 and 680x0, an optimized version will be provided in match.asm or
* match.S. The code will be functionally equivalent.
*/
#ifndef FASTEST
local uInt longest_match(s, cur_match)
deflate_state *s;
IPos cur_match; /* current match */
@ -904,12 +919,13 @@ local uInt longest_match(s, cur_match)
if ((uInt)best_len <= s->lookahead) return (uInt)best_len;
return s->lookahead;
}
#endif /* ASMV */
#endif /* FASTEST */
#else /* FASTEST */
/* ---------------------------------------------------------------------------
* Optimized version for level == 1 only
* Optimized version for level == 1 or strategy == Z_RLE only
*/
local uInt longest_match(s, cur_match)
local uInt longest_match_fast(s, cur_match)
deflate_state *s;
IPos cur_match; /* current match */
{
@ -947,10 +963,10 @@ local uInt longest_match(s, cur_match)
*/
do {
} while (*++scan == *++match && *++scan == *++match &&
*++scan == *++match && *++scan == *++match &&
*++scan == *++match && *++scan == *++match &&
*++scan == *++match && *++scan == *++match &&
scan < strend);
*++scan == *++match && *++scan == *++match &&
*++scan == *++match && *++scan == *++match &&
*++scan == *++match && *++scan == *++match &&
scan < strend);
Assert(scan <= s->window+(unsigned)(s->window_size-1), "wild scan");
@ -961,8 +977,6 @@ local uInt longest_match(s, cur_match)
s->match_start = cur_match;
return len <= s->lookahead ? len : s->lookahead;
}
#endif /* FASTEST */
#endif /* ASMV */
#ifdef DEBUG
/* ===========================================================================
@ -977,10 +991,10 @@ local void check_match(s, start, match, length)
if (zmemcmp(s->window + match,
s->window + start, length) != EQUAL) {
fprintf(stderr, " start %u, match %u, length %d\n",
start, match, length);
start, match, length);
do {
fprintf(stderr, "%c%c", s->window[match++], s->window[start++]);
} while (--length != 0);
fprintf(stderr, "%c%c", s->window[match++], s->window[start++]);
} while (--length != 0);
z_error("invalid match");
}
if (z_verbose > 1) {
@ -990,7 +1004,7 @@ local void check_match(s, start, match, length)
}
#else
# define check_match(s, start, match, length)
#endif
#endif /* DEBUG */
/* ===========================================================================
* Fill the window when the lookahead becomes insufficient.
@ -1039,23 +1053,23 @@ local void fill_window(s)
later. (Using level 0 permanently is not an optimal usage of
zlib, so we don't care about this pathological case.)
*/
n = s->hash_size;
p = &s->head[n];
do {
m = *--p;
*p = (Pos)(m >= wsize ? m-wsize : NIL);
} while (--n);
n = s->hash_size;
p = &s->head[n];
do {
m = *--p;
*p = (Pos)(m >= wsize ? m-wsize : NIL);
} while (--n);
n = wsize;
n = wsize;
#ifndef FASTEST
p = &s->prev[n];
do {
m = *--p;
*p = (Pos)(m >= wsize ? m-wsize : NIL);
/* If n is not on any hash chain, prev[n] is garbage but
* its value will never be used.
*/
} while (--n);
p = &s->prev[n];
do {
m = *--p;
*p = (Pos)(m >= wsize ? m-wsize : NIL);
/* If n is not on any hash chain, prev[n] is garbage but
* its value will never be used.
*/
} while (--n);
#endif
more += wsize;
}
@ -1100,8 +1114,8 @@ local void fill_window(s)
_tr_flush_block(s, (s->block_start >= 0L ? \
(charf *)&s->window[(unsigned)s->block_start] : \
(charf *)Z_NULL), \
(ulg)((long)s->strstart - s->block_start), \
(eof)); \
(ulg)((long)s->strstart - s->block_start), \
(eof)); \
s->block_start = s->strstart; \
flush_pending(s->strm); \
Tracev((stderr,"[FLUSH]")); \
@ -1142,32 +1156,32 @@ local block_state deflate_stored(s, flush)
if (s->lookahead <= 1) {
Assert(s->strstart < s->w_size+MAX_DIST(s) ||
s->block_start >= (long)s->w_size, "slide too late");
s->block_start >= (long)s->w_size, "slide too late");
fill_window(s);
if (s->lookahead == 0 && flush == Z_NO_FLUSH) return need_more;
if (s->lookahead == 0) break; /* flush the current block */
}
Assert(s->block_start >= 0L, "block gone");
Assert(s->block_start >= 0L, "block gone");
s->strstart += s->lookahead;
s->lookahead = 0;
s->strstart += s->lookahead;
s->lookahead = 0;
/* Emit a stored block if pending_buf will be full: */
max_start = s->block_start + max_block_size;
/* Emit a stored block if pending_buf will be full: */
max_start = s->block_start + max_block_size;
if (s->strstart == 0 || (ulg)s->strstart >= max_start) {
/* strstart == 0 is possible when wraparound on 16-bit machine */
s->lookahead = (uInt)(s->strstart - max_start);
s->strstart = (uInt)max_start;
/* strstart == 0 is possible when wraparound on 16-bit machine */
s->lookahead = (uInt)(s->strstart - max_start);
s->strstart = (uInt)max_start;
FLUSH_BLOCK(s, 0);
}
/* Flush if we may have to slide, otherwise block_start may become
}
/* Flush if we may have to slide, otherwise block_start may become
* negative and the data will be gone:
*/
if (s->strstart - (uInt)s->block_start >= MAX_DIST(s)) {
FLUSH_BLOCK(s, 0);
}
}
}
FLUSH_BLOCK(s, flush == Z_FINISH);
return flush == Z_FINISH ? finish_done : block_done;
@ -1196,8 +1210,8 @@ local block_state deflate_fast(s, flush)
if (s->lookahead < MIN_LOOKAHEAD) {
fill_window(s);
if (s->lookahead < MIN_LOOKAHEAD && flush == Z_NO_FLUSH) {
return need_more;
}
return need_more;
}
if (s->lookahead == 0) break; /* flush the current block */
}
@ -1216,10 +1230,19 @@ local block_state deflate_fast(s, flush)
* of window index 0 (in particular we have to avoid a match
* of the string with itself at the start of the input file).
*/
if (s->strategy != Z_HUFFMAN_ONLY) {
s->match_length = longest_match (s, hash_head);
#ifdef FASTEST
if ((s->strategy < Z_HUFFMAN_ONLY) ||
(s->strategy == Z_RLE && s->strstart - hash_head == 1)) {
s->match_length = longest_match_fast (s, hash_head);
}
/* longest_match() sets match_start */
#else
if (s->strategy < Z_HUFFMAN_ONLY) {
s->match_length = longest_match (s, hash_head);
} else if (s->strategy == Z_RLE && s->strstart - hash_head == 1) {
s->match_length = longest_match_fast (s, hash_head);
}
#endif
/* longest_match() or longest_match_fast() sets match_start */
}
if (s->match_length >= MIN_MATCH) {
check_match(s, s->strstart, s->match_start, s->match_length);
@ -1243,10 +1266,10 @@ local block_state deflate_fast(s, flush)
* always MIN_MATCH bytes ahead.
*/
} while (--s->match_length != 0);
s->strstart++;
s->strstart++;
} else
#endif
{
{
s->strstart += s->match_length;
s->match_length = 0;
s->ins_h = s->window[s->strstart];
@ -1263,7 +1286,7 @@ local block_state deflate_fast(s, flush)
Tracevv((stderr,"%c", s->window[s->strstart]));
_tr_tally_lit (s, s->window[s->strstart], bflush);
s->lookahead--;
s->strstart++;
s->strstart++;
}
if (bflush) FLUSH_BLOCK(s, 0);
}
@ -1271,6 +1294,7 @@ local block_state deflate_fast(s, flush)
return flush == Z_FINISH ? finish_done : block_done;
}
#ifndef FASTEST
/* ===========================================================================
* Same as above, but achieves better compression. We use a lazy
* evaluation for matches: a match is finally adopted only if there is
@ -1293,8 +1317,8 @@ local block_state deflate_slow(s, flush)
if (s->lookahead < MIN_LOOKAHEAD) {
fill_window(s);
if (s->lookahead < MIN_LOOKAHEAD && flush == Z_NO_FLUSH) {
return need_more;
}
return need_more;
}
if (s->lookahead == 0) break; /* flush the current block */
}
@ -1316,10 +1340,12 @@ local block_state deflate_slow(s, flush)
* of window index 0 (in particular we have to avoid a match
* of the string with itself at the start of the input file).
*/
if (s->strategy != Z_HUFFMAN_ONLY) {
if (s->strategy < Z_HUFFMAN_ONLY) {
s->match_length = longest_match (s, hash_head);
} else if (s->strategy == Z_RLE && s->strstart - hash_head == 1) {
s->match_length = longest_match_fast (s, hash_head);
}
/* longest_match() sets match_start */
/* longest_match() or longest_match_fast() sets match_start */
if (s->match_length <= 5 && (s->strategy == Z_FILTERED ||
(s->match_length == MIN_MATCH &&
@ -1341,7 +1367,7 @@ local block_state deflate_slow(s, flush)
check_match(s, s->strstart-1, s->prev_match, s->prev_length);
_tr_tally_dist(s, s->strstart -1 - s->prev_match,
s->prev_length - MIN_MATCH, bflush);
s->prev_length - MIN_MATCH, bflush);
/* Insert in hash table all strings up to the end of the match.
* strstart-1 and strstart are already inserted. If there is not
@ -1367,8 +1393,8 @@ local block_state deflate_slow(s, flush)
* is longer, truncate the previous match to a single literal.
*/
Tracevv((stderr,"%c", s->window[s->strstart-1]));
_tr_tally_lit(s, s->window[s->strstart-1], bflush);
if (bflush) {
_tr_tally_lit(s, s->window[s->strstart-1], bflush);
if (bflush) {
FLUSH_BLOCK_ONLY(s, 0);
}
s->strstart++;
@ -1392,3 +1418,4 @@ local block_state deflate_slow(s, flush)
FLUSH_BLOCK(s, flush == Z_FINISH);
return flush == Z_FINISH ? finish_done : block_done;
}
#endif /* FASTEST */

2
deflate.h
View File

@ -269,7 +269,7 @@ typedef struct internal_state {
void _tr_init OF((deflate_state *s));
int _tr_tally OF((deflate_state *s, unsigned dist, unsigned lc));
void _tr_flush_block OF((deflate_state *s, charf *buf, ulg stored_len,
int eof));
int eof));
void _tr_align OF((deflate_state *s));
void _tr_stored_block OF((deflate_state *s, charf *buf, ulg stored_len,
int eof));

83
example.c
View File

@ -1,6 +1,6 @@
/* example.c -- usage example of the zlib compression library
* Copyright (C) 1995-2003 Jean-loup Gailly.
* For conditions of distribution and use, see copyright notice in zlib.h
* For conditions of distribution and use, see copyright notice in zlib.h
*/
/* @(#) $Id$ */
@ -37,22 +37,22 @@ const char dictionary[] = "hello";
uLong dictId; /* Adler32 value of the dictionary */
void test_compress OF((Byte *compr, uLong comprLen,
Byte *uncompr, uLong uncomprLen));
void test_gzio OF((const char *out, const char *in,
Byte *uncompr, int uncomprLen));
Byte *uncompr, uLong uncomprLen));
void test_gzio OF((const char *out, const char *in,
Byte *uncompr, int uncomprLen));
void test_deflate OF((Byte *compr, uLong comprLen));
void test_inflate OF((Byte *compr, uLong comprLen,
Byte *uncompr, uLong uncomprLen));
Byte *uncompr, uLong uncomprLen));
void test_large_deflate OF((Byte *compr, uLong comprLen,
Byte *uncompr, uLong uncomprLen));
Byte *uncompr, uLong uncomprLen));
void test_large_inflate OF((Byte *compr, uLong comprLen,
Byte *uncompr, uLong uncomprLen));
Byte *uncompr, uLong uncomprLen));
void test_flush OF((Byte *compr, uLong *comprLen));
void test_sync OF((Byte *compr, uLong comprLen,
Byte *uncompr, uLong uncomprLen));
Byte *uncompr, uLong uncomprLen));
void test_dict_deflate OF((Byte *compr, uLong comprLen));
void test_dict_inflate OF((Byte *compr, uLong comprLen,
Byte *uncompr, uLong uncomprLen));
Byte *uncompr, uLong uncomprLen));
int main OF((int argc, char *argv[]));
/* ===========================================================================
@ -75,7 +75,7 @@ void test_compress(compr, comprLen, uncompr, uncomprLen)
if (strcmp((char*)uncompr, hello)) {
fprintf(stderr, "bad uncompress\n");
exit(1);
exit(1);
} else {
printf("uncompress(): %s\n", (char *)uncompr);
}
@ -103,11 +103,11 @@ void test_gzio(out, in, uncompr, uncomprLen)
gzputc(file, 'h');
if (gzputs(file, "ello") != 4) {
fprintf(stderr, "gzputs err: %s\n", gzerror(file, &err));
exit(1);
exit(1);
}
if (gzprintf(file, ", %s!", "hello") != 8) {
fprintf(stderr, "gzprintf err: %s\n", gzerror(file, &err));
exit(1);
exit(1);
}
gzseek(file, 1L, SEEK_CUR); /* add one zero byte */
gzclose(file);
@ -121,36 +121,36 @@ void test_gzio(out, in, uncompr, uncomprLen)
uncomprLen = gzread(file, uncompr, (unsigned)uncomprLen);
if (uncomprLen != len) {
fprintf(stderr, "gzread err: %s\n", gzerror(file, &err));
exit(1);
exit(1);
}
if (strcmp((char*)uncompr, hello)) {
fprintf(stderr, "bad gzread: %s\n", (char*)uncompr);
exit(1);
exit(1);
} else {
printf("gzread(): %s\n", (char *)uncompr);
}
pos = gzseek(file, -8L, SEEK_CUR);
if (pos != 6 || gztell(file) != pos) {
fprintf(stderr, "gzseek error, pos=%ld, gztell=%ld\n",
(long)pos, (long)gztell(file));
exit(1);
fprintf(stderr, "gzseek error, pos=%ld, gztell=%ld\n",
(long)pos, (long)gztell(file));
exit(1);
}
if (gzgetc(file) != ' ') {
fprintf(stderr, "gzgetc error\n");
exit(1);
fprintf(stderr, "gzgetc error\n");
exit(1);
}
gzgets(file, (char*)uncompr, uncomprLen);
uncomprLen = strlen((char*)uncompr);
if (uncomprLen != 6) { /* "hello!" */
fprintf(stderr, "gzgets err after gzseek: %s\n", gzerror(file, &err));
exit(1);
exit(1);
}
if (strcmp((char*)uncompr, hello+7)) {
fprintf(stderr, "bad gzgets after gzseek\n");
exit(1);
exit(1);
} else {
printf("gzgets() after gzseek: %s\n", (char *)uncompr);
}
@ -231,7 +231,7 @@ void test_inflate(compr, comprLen, uncompr, uncomprLen)
if (strcmp((char*)uncompr, hello)) {
fprintf(stderr, "bad inflate\n");
exit(1);
exit(1);
} else {
printf("inflate(): %s\n", (char *)uncompr);
}
@ -266,7 +266,7 @@ void test_large_deflate(compr, comprLen, uncompr, uncomprLen)
CHECK_ERR(err, "deflate");
if (c_stream.avail_in != 0) {
fprintf(stderr, "deflate not greedy\n");
exit(1);
exit(1);
}
/* Feed in already compressed data and switch to no compression: */
@ -286,7 +286,7 @@ void test_large_deflate(compr, comprLen, uncompr, uncomprLen)
err = deflate(&c_stream, Z_FINISH);
if (err != Z_STREAM_END) {
fprintf(stderr, "deflate should report Z_STREAM_END\n");
exit(1);
exit(1);
}
err = deflateEnd(&c_stream);
CHECK_ERR(err, "deflateEnd");
@ -316,7 +316,7 @@ void test_large_inflate(compr, comprLen, uncompr, uncomprLen)
for (;;) {
d_stream.next_out = uncompr; /* discard the output */
d_stream.avail_out = (uInt)uncomprLen;
d_stream.avail_out = (uInt)uncomprLen;
err = inflate(&d_stream, Z_NO_FLUSH);
if (err == Z_STREAM_END) break;
CHECK_ERR(err, "large inflate");
@ -327,7 +327,7 @@ void test_large_inflate(compr, comprLen, uncompr, uncomprLen)
if (d_stream.total_out != 2*uncomprLen + comprLen/2) {
fprintf(stderr, "bad large inflate: %ld\n", d_stream.total_out);
exit(1);
exit(1);
} else {
printf("large_inflate(): OK\n");
}
@ -407,7 +407,7 @@ void test_sync(compr, comprLen, uncompr, uncomprLen)
if (err != Z_DATA_ERROR) {
fprintf(stderr, "inflate should report DATA_ERROR\n");
/* Because of incorrect adler32 */
exit(1);
exit(1);
}
err = inflateEnd(&d_stream);
CHECK_ERR(err, "inflateEnd");
@ -433,7 +433,7 @@ void test_dict_deflate(compr, comprLen)
CHECK_ERR(err, "deflateInit");
err = deflateSetDictionary(&c_stream,
(const Bytef*)dictionary, sizeof(dictionary));
(const Bytef*)dictionary, sizeof(dictionary));
CHECK_ERR(err, "deflateSetDictionary");
dictId = c_stream.adler;
@ -446,7 +446,7 @@ void test_dict_deflate(compr, comprLen)
err = deflate(&c_stream, Z_FINISH);
if (err != Z_STREAM_END) {
fprintf(stderr, "deflate should report Z_STREAM_END\n");
exit(1);
exit(1);
}
err = deflateEnd(&c_stream);
CHECK_ERR(err, "deflateEnd");
@ -480,14 +480,14 @@ void test_dict_inflate(compr, comprLen, uncompr, uncomprLen)
for (;;) {
err = inflate(&d_stream, Z_NO_FLUSH);
if (err == Z_STREAM_END) break;
if (err == Z_NEED_DICT) {
if (d_stream.adler != dictId) {
fprintf(stderr, "unexpected dictionary");
exit(1);
}
err = inflateSetDictionary(&d_stream, (const Bytef*)dictionary,
sizeof(dictionary));
}
if (err == Z_NEED_DICT) {
if (d_stream.adler != dictId) {
fprintf(stderr, "unexpected dictionary");
exit(1);
}
err = inflateSetDictionary(&d_stream, (const Bytef*)dictionary,
sizeof(dictionary));
}
CHECK_ERR(err, "inflate with dict");
}
@ -496,7 +496,7 @@ void test_dict_inflate(compr, comprLen, uncompr, uncomprLen)
if (strcmp((char*)uncompr, hello)) {
fprintf(stderr, "bad inflate with dict\n");
exit(1);
exit(1);
} else {
printf("inflate with dictionary: %s\n", (char *)uncompr);
}
@ -530,13 +530,13 @@ int main(argc, argv)
*/
if (compr == Z_NULL || uncompr == Z_NULL) {
printf("out of memory\n");
exit(1);
exit(1);
}
test_compress(compr, comprLen, uncompr, uncomprLen);
test_gzio((argc > 1 ? argv[1] : TESTFILE),
(argc > 2 ? argv[2] : TESTFILE),
uncompr, (int)uncomprLen);
uncompr, (int)uncomprLen);
test_deflate(compr, comprLen);
test_inflate(compr, comprLen, uncompr, uncomprLen);
@ -554,6 +554,5 @@ int main(argc, argv)
free(compr);
free(uncompr);
exit(0);
return 0; /* to avoid warning */
return 0;
}

290
gzio.c
View File

@ -117,17 +117,19 @@ local gzFile gz_open (path, mode, fd)
if (*p == 'r') s->mode = 'r';
if (*p == 'w' || *p == 'a') s->mode = 'w';
if (*p >= '0' && *p <= '9') {
level = *p - '0';
} else if (*p == 'f') {
strategy = Z_FILTERED;
} else if (*p == 'h') {
strategy = Z_HUFFMAN_ONLY;
} else {
*m++ = *p; /* copy the mode */
}
level = *p - '0';
} else if (*p == 'f') {
strategy = Z_FILTERED;
} else if (*p == 'h') {
strategy = Z_HUFFMAN_ONLY;
} else if (*p == 'R') {
strategy = Z_RLE;
} else {
*m++ = *p; /* copy the mode */
}
} while (*p++ && m != fmode + sizeof(fmode));
if (s->mode == '\0') return destroy(s), (gzFile)Z_NULL;
if (s->mode == 'w') {
#ifdef NO_DEFLATE
err = Z_STREAM_ERROR;
@ -168,17 +170,17 @@ local gzFile gz_open (path, mode, fd)
*/
fprintf(s->file, "%c%c%c%c%c%c%c%c%c%c", gz_magic[0], gz_magic[1],
Z_DEFLATED, 0 /*flags*/, 0,0,0,0 /*time*/, 0 /*xflags*/, OS_CODE);
s->startpos = 10L;
/* We use 10L instead of ftell(s->file) to because ftell causes an
s->startpos = 10L;
/* We use 10L instead of ftell(s->file) to because ftell causes an
* fflush on some systems. This version of the library doesn't use
* startpos anyway in write mode, so this initialization is not
* necessary.
*/
} else {
check_header(s); /* skip the .gz header */
s->startpos = (ftell(s->file) - s->stream.avail_in);
check_header(s); /* skip the .gz header */
s->startpos = (ftell(s->file) - s->stream.avail_in);
}
return (gzFile)s;
}
@ -223,11 +225,11 @@ int ZEXPORT gzsetparams (file, level, strategy)
/* Make room to allow flushing */
if (s->stream.avail_out == 0) {
s->stream.next_out = s->outbuf;
if (fwrite(s->outbuf, 1, Z_BUFSIZE, s->file) != Z_BUFSIZE) {
s->z_err = Z_ERRNO;
}
s->stream.avail_out = Z_BUFSIZE;
s->stream.next_out = s->outbuf;
if (fwrite(s->outbuf, 1, Z_BUFSIZE, s->file) != Z_BUFSIZE) {
s->z_err = Z_ERRNO;
}
s->stream.avail_out = Z_BUFSIZE;
}
return deflateParams (&(s->stream), level, strategy);
@ -243,14 +245,14 @@ local int get_byte(s)
{
if (s->z_eof) return EOF;
if (s->stream.avail_in == 0) {
errno = 0;
s->stream.avail_in = fread(s->inbuf, 1, Z_BUFSIZE, s->file);
if (s->stream.avail_in == 0) {
s->z_eof = 1;
if (ferror(s->file)) s->z_err = Z_ERRNO;
return EOF;
}
s->stream.next_in = s->inbuf;
errno = 0;
s->stream.avail_in = fread(s->inbuf, 1, Z_BUFSIZE, s->file);
if (s->stream.avail_in == 0) {
s->z_eof = 1;
if (ferror(s->file)) s->z_err = Z_ERRNO;
return EOF;
}
s->stream.next_in = s->inbuf;
}
s->stream.avail_in--;
return *(s->stream.next_in)++;
@ -292,7 +294,7 @@ local void check_header(s)
/* Peek ahead to check the gzip magic header */
if (s->stream.next_in[0] != gz_magic[0] ||
s->stream.next_in[1] != gz_magic[1]) {
s->stream.next_in[1] != gz_magic[1]) {
s->transparent = 1;
return;
}
@ -303,27 +305,27 @@ local void check_header(s)
method = get_byte(s);
flags = get_byte(s);
if (method != Z_DEFLATED || (flags & RESERVED) != 0) {
s->z_err = Z_DATA_ERROR;
return;
s->z_err = Z_DATA_ERROR;
return;
}
/* Discard time, xflags and OS code: */
for (len = 0; len < 6; len++) (void)get_byte(s);
if ((flags & EXTRA_FIELD) != 0) { /* skip the extra field */
len = (uInt)get_byte(s);
len += ((uInt)get_byte(s))<<8;
/* len is garbage if EOF but the loop below will quit anyway */
while (len-- != 0 && get_byte(s) != EOF) ;
len = (uInt)get_byte(s);
len += ((uInt)get_byte(s))<<8;
/* len is garbage if EOF but the loop below will quit anyway */
while (len-- != 0 && get_byte(s) != EOF) ;
}
if ((flags & ORIG_NAME) != 0) { /* skip the original file name */
while ((c = get_byte(s)) != 0 && c != EOF) ;
while ((c = get_byte(s)) != 0 && c != EOF) ;
}
if ((flags & COMMENT) != 0) { /* skip the .gz file comment */
while ((c = get_byte(s)) != 0 && c != EOF) ;
while ((c = get_byte(s)) != 0 && c != EOF) ;
}
if ((flags & HEAD_CRC) != 0) { /* skip the header crc */
for (len = 0; len < 2; len++) (void)get_byte(s);
for (len = 0; len < 2; len++) (void)get_byte(s);
}
s->z_err = s->z_eof ? Z_DATA_ERROR : Z_OK;
}
@ -342,21 +344,21 @@ local int destroy (s)
TRYFREE(s->msg);
if (s->stream.state != NULL) {
if (s->mode == 'w') {
if (s->mode == 'w') {
#ifdef NO_DEFLATE
err = Z_STREAM_ERROR;
err = Z_STREAM_ERROR;
#else
err = deflateEnd(&(s->stream));
err = deflateEnd(&(s->stream));
#endif
} else if (s->mode == 'r') {
err = inflateEnd(&(s->stream));
}
} else if (s->mode == 'r') {
err = inflateEnd(&(s->stream));
}
}
if (s->file != NULL && fclose(s->file)) {
#ifdef ESPIPE
if (errno != ESPIPE) /* fclose is broken for pipes in HP/UX */
if (errno != ESPIPE) /* fclose is broken for pipes in HP/UX */
#endif
err = Z_ERRNO;
err = Z_ERRNO;
}
if (s->z_err < 0) err = s->z_err;
@ -391,69 +393,69 @@ int ZEXPORT gzread (file, buf, len)
while (s->stream.avail_out != 0) {
if (s->transparent) {
/* Copy first the lookahead bytes: */
uInt n = s->stream.avail_in;
if (n > s->stream.avail_out) n = s->stream.avail_out;
if (n > 0) {
zmemcpy(s->stream.next_out, s->stream.next_in, n);
next_out += n;
s->stream.next_out = next_out;
s->stream.next_in += n;
s->stream.avail_out -= n;
s->stream.avail_in -= n;
}
if (s->stream.avail_out > 0) {
s->stream.avail_out -= fread(next_out, 1, s->stream.avail_out,
s->file);
}
len -= s->stream.avail_out;
s->stream.total_in += (uLong)len;
s->stream.total_out += (uLong)len;
if (s->transparent) {
/* Copy first the lookahead bytes: */
uInt n = s->stream.avail_in;
if (n > s->stream.avail_out) n = s->stream.avail_out;
if (n > 0) {
zmemcpy(s->stream.next_out, s->stream.next_in, n);
next_out += n;
s->stream.next_out = next_out;
s->stream.next_in += n;
s->stream.avail_out -= n;
s->stream.avail_in -= n;
}
if (s->stream.avail_out > 0) {
s->stream.avail_out -= fread(next_out, 1, s->stream.avail_out,
s->file);
}
len -= s->stream.avail_out;
s->stream.total_in += (uLong)len;
s->stream.total_out += (uLong)len;
if (len == 0) s->z_eof = 1;
return (int)len;
}
return (int)len;
}
if (s->stream.avail_in == 0 && !s->z_eof) {
errno = 0;
s->stream.avail_in = fread(s->inbuf, 1, Z_BUFSIZE, s->file);
if (s->stream.avail_in == 0) {
s->z_eof = 1;
if (ferror(s->file)) {
s->z_err = Z_ERRNO;
break;
}
if (ferror(s->file)) {
s->z_err = Z_ERRNO;
break;
}
}
s->stream.next_in = s->inbuf;
}
s->z_err = inflate(&(s->stream), Z_NO_FLUSH);
if (s->z_err == Z_STREAM_END) {
/* Check CRC and original size */
s->crc = crc32(s->crc, start, (uInt)(s->stream.next_out - start));
start = s->stream.next_out;
if (s->z_err == Z_STREAM_END) {
/* Check CRC and original size */
s->crc = crc32(s->crc, start, (uInt)(s->stream.next_out - start));
start = s->stream.next_out;
if (getLong(s) != s->crc) {
s->z_err = Z_DATA_ERROR;
} else {
(void)getLong(s);
if (getLong(s) != s->crc) {
s->z_err = Z_DATA_ERROR;
} else {
(void)getLong(s);
/* The uncompressed length returned by above getlong() may
* be different from s->stream.total_out) in case of
* concatenated .gz files. Check for such files:
*/
check_header(s);
if (s->z_err == Z_OK) {
uLong total_in = s->stream.total_in;
uLong total_out = s->stream.total_out;
* concatenated .gz files. Check for such files:
*/
check_header(s);
if (s->z_err == Z_OK) {
uLong total_in = s->stream.total_in;
uLong total_out = s->stream.total_out;
inflateReset(&(s->stream));
s->stream.total_in = total_in;
s->stream.total_out = total_out;
s->crc = crc32(0L, Z_NULL, 0);
}
}
}
if (s->z_err != Z_OK || s->z_eof) break;
inflateReset(&(s->stream));
s->stream.total_in = total_in;
s->stream.total_out = total_out;
s->crc = crc32(0L, Z_NULL, 0);
}
}
}
if (s->z_err != Z_OK || s->z_eof) break;
}
s->crc = crc32(s->crc, start, (uInt)(s->stream.next_out - start));
@ -580,11 +582,11 @@ int ZEXPORTVA gzprintf (gzFile file, const char *format, /* args */ ...)
#else /* not ANSI C */
int ZEXPORTVA gzprintf (file, format, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10,
a11, a12, a13, a14, a15, a16, a17, a18, a19, a20)
a11, a12, a13, a14, a15, a16, a17, a18, a19, a20)
gzFile file;
const char *format;
int a1, a2, a3, a4, a5, a6, a7, a8, a9, a10,
a11, a12, a13, a14, a15, a16, a17, a18, a19, a20;
a11, a12, a13, a14, a15, a16, a17, a18, a19, a20;
{
char buf[Z_PRINTF_BUFSIZE];
int len;
@ -592,25 +594,25 @@ int ZEXPORTVA gzprintf (file, format, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10,
#ifdef NO_snprintf
# ifdef HAS_sprintf_void
sprintf(buf, format, a1, a2, a3, a4, a5, a6, a7, a8,
a9, a10, a11, a12, a13, a14, a15, a16, a17, a18, a19, a20);
a9, a10, a11, a12, a13, a14, a15, a16, a17, a18, a19, a20);
len = strlen(buf); /* old sprintf doesn't return the nb of bytes written */
if (len <= 0) return 0;
# else
len = sprintf(buf, format, a1, a2, a3, a4, a5, a6, a7, a8,
a9, a10, a11, a12, a13, a14, a15, a16, a17, a18, a19, a20);
a9, a10, a11, a12, a13, a14, a15, a16, a17, a18, a19, a20);
if (len <= 0 || len >= sizeof(buf))
return 0;
# endif
#else
# ifdef HAS_snprintf_void
snprintf(buf, sizeof(buf), format, a1, a2, a3, a4, a5, a6, a7, a8,
a9, a10, a11, a12, a13, a14, a15, a16, a17, a18, a19, a20);
a9, a10, a11, a12, a13, a14, a15, a16, a17, a18, a19, a20);
len = strlen(buf);
if (len <= 0)
return 0;
# else
len = snprintf(buf, sizeof(buf), format, a1, a2, a3, a4, a5, a6, a7, a8,
a9, a10, a11, a12, a13, a14, a15, a16, a17, a18, a19, a20);
a9, a10, a11, a12, a13, a14, a15, a16, a17, a18, a19, a20);
if (len <= 0 || len >= sizeof(buf))
return 0;
# endif
@ -677,14 +679,14 @@ local int do_flush (file, flush)
if (done) break;
s->z_err = deflate(&(s->stream), flush);
/* Ignore the second of two consecutive flushes: */
if (len == 0 && s->z_err == Z_BUF_ERROR) s->z_err = Z_OK;
/* Ignore the second of two consecutive flushes: */
if (len == 0 && s->z_err == Z_BUF_ERROR) s->z_err = Z_OK;
/* deflate has finished flushing only when it hasn't used up
* all the available space in the output buffer:
* all the available space in the output buffer:
*/
done = (s->stream.avail_out != 0 || s->z_err == Z_STREAM_END);
if (s->z_err != Z_OK && s->z_err != Z_STREAM_END) break;
}
return s->z_err == Z_STREAM_END ? Z_OK : s->z_err;
@ -719,86 +721,86 @@ z_off_t ZEXPORT gzseek (file, offset, whence)
gz_stream *s = (gz_stream*)file;
if (s == NULL || whence == SEEK_END ||
s->z_err == Z_ERRNO || s->z_err == Z_DATA_ERROR) {
return -1L;
s->z_err == Z_ERRNO || s->z_err == Z_DATA_ERROR) {
return -1L;
}
if (s->mode == 'w') {
#ifdef NO_DEFLATE
return -1L;
return -1L;
#else
if (whence == SEEK_SET) {
offset -= s->stream.total_in;
}
if (offset < 0) return -1L;
if (whence == SEEK_SET) {
offset -= s->stream.total_in;
}
if (offset < 0) return -1L;
/* At this point, offset is the number of zero bytes to write. */
if (s->inbuf == Z_NULL) {
s->inbuf = (Byte*)ALLOC(Z_BUFSIZE); /* for seeking */
/* At this point, offset is the number of zero bytes to write. */
if (s->inbuf == Z_NULL) {
s->inbuf = (Byte*)ALLOC(Z_BUFSIZE); /* for seeking */
if (s->inbuf == Z_NULL) return -1L;
zmemzero(s->inbuf, Z_BUFSIZE);
}
while (offset > 0) {
uInt size = Z_BUFSIZE;
if (offset < Z_BUFSIZE) size = (uInt)offset;
zmemzero(s->inbuf, Z_BUFSIZE);
}
while (offset > 0) {
uInt size = Z_BUFSIZE;
if (offset < Z_BUFSIZE) size = (uInt)offset;
size = gzwrite(file, s->inbuf, size);
if (size == 0) return -1L;
size = gzwrite(file, s->inbuf, size);
if (size == 0) return -1L;
offset -= size;
}
return (z_off_t)s->stream.total_in;
offset -= size;
}
return (z_off_t)s->stream.total_in;
#endif
}
/* Rest of function is for reading only */
/* compute absolute position */
if (whence == SEEK_CUR) {
offset += s->stream.total_out;
offset += s->stream.total_out;
}
if (offset < 0) return -1L;
if (s->transparent) {
/* map to fseek */
s->stream.avail_in = 0;
s->stream.next_in = s->inbuf;
/* map to fseek */
s->stream.avail_in = 0;
s->stream.next_in = s->inbuf;
if (fseek(s->file, offset, SEEK_SET) < 0) return -1L;
s->stream.total_in = s->stream.total_out = (uLong)offset;
return offset;
s->stream.total_in = s->stream.total_out = (uLong)offset;
return offset;
}
/* For a negative seek, rewind and use positive seek */
if ((uLong)offset >= s->stream.total_out) {
offset -= s->stream.total_out;
offset -= s->stream.total_out;
} else if (gzrewind(file) < 0) {
return -1L;
return -1L;
}
/* offset is now the number of bytes to skip. */
if (offset != 0 && s->outbuf == Z_NULL) {
s->outbuf = (Byte*)ALLOC(Z_BUFSIZE);
s->outbuf = (Byte*)ALLOC(Z_BUFSIZE);
if (s->outbuf == Z_NULL) return -1L;
}
while (offset > 0) {
int size = Z_BUFSIZE;
if (offset < Z_BUFSIZE) size = (int)offset;
int size = Z_BUFSIZE;
if (offset < Z_BUFSIZE) size = (int)offset;
size = gzread(file, s->outbuf, (uInt)size);
if (size <= 0) return -1L;
offset -= size;
size = gzread(file, s->outbuf, (uInt)size);
if (size <= 0) return -1L;
offset -= size;
}
return (z_off_t)s->stream.total_out;
}
/* ===========================================================================
Rewinds input file.
Rewinds input file.
*/
int ZEXPORT gzrewind (file)
gzFile file;
{
gz_stream *s = (gz_stream*)file;
if (s == NULL || s->mode != 'r') return -1;
s->z_err = Z_OK;
@ -806,10 +808,10 @@ int ZEXPORT gzrewind (file)
s->stream.avail_in = 0;
s->stream.next_in = s->inbuf;
s->crc = crc32(0L, Z_NULL, 0);
if (s->startpos == 0) { /* not a compressed file */
rewind(s->file);
return 0;
rewind(s->file);
return 0;
}
(void) inflateReset(&s->stream);
@ -835,7 +837,7 @@ int ZEXPORT gzeof (file)
gzFile file;
{
gz_stream *s = (gz_stream*)file;
return (s == NULL || s->mode != 'r') ? 0 : s->z_eof;
}
@ -885,7 +887,7 @@ int ZEXPORT gzclose (file)
if (s->mode == 'w') {
#ifdef NO_DEFLATE
return Z_STREAM_ERROR;
return Z_STREAM_ERROR;
#else
err = do_flush (file, Z_FINISH);
if (err != Z_OK) return destroy((gz_stream*)file);

3
infback.c
View File

@ -603,11 +603,8 @@ void FAR *out_desc;
int ZEXPORT inflateBackEnd(strm)
z_stream FAR *strm;
{
struct inflate_state FAR *state;
if (strm == Z_NULL || strm->state == Z_NULL || strm->zfree == Z_NULL)
return Z_STREAM_ERROR;
state = (struct inflate_state FAR *)strm->state;
ZFREE(strm, strm->state);
strm->state = Z_NULL;
Tracev((stderr, "inflate: end\n"));

4
inffast.c
View File

@ -133,7 +133,7 @@ unsigned start; /* inflate()'s starting value for strm->avail_out */
hold += (unsigned long)(PUP(in)) << bits;
bits += 8;
}
len += hold & ((1U << op) - 1);
len += (unsigned)hold & ((1U << op) - 1);
hold >>= op;
bits -= op;
}
@ -161,7 +161,7 @@ unsigned start; /* inflate()'s starting value for strm->avail_out */
bits += 8;
}
}
dist += hold & ((1U << op) - 1);
dist += (unsigned)hold & ((1U << op) - 1);
hold >>= op;
bits -= op;
Tracevv((stderr, "inflate: distance %u\n", dist));

4
inflate.c
View File

@ -70,14 +70,14 @@
* - Changed many types to unsigned or unsigned short to avoid warnings
* - Added inflateCopy() function
*
* 1.2.0 9 Mar 2003
* 1.2.0 9 Mar 2003
* - Changed inflateBack() interface to provide separate opaque descriptors
* for the in() and out() functions
* - Changed inflateBack() argument and in_func typedef to swap the length
* and buffer address return values for the input function
* - Check next_in and next_out for Z_NULL on entry to inflate()
*
* Remainder of change history is in ChangeLog in zlib distribution.
* The history for versions past 1.2.0 are in ChangeLog in zlib distribution.
*/
#include "zutil.h"

4
inftrees.c
View File

@ -9,7 +9,7 @@
#define MAXBITS 15
const char inflate_copyright[] =
" inflate 1.2.0 Copyright 1995-2003 Mark Adler ";
" inflate 1.2.0.1 Copyright 1995-2003 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, 73, 194};
19, 19, 19, 19, 20, 20, 20, 20, 21, 21, 21, 21, 16, 205, 64};
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,

29
minigzip.c
View File

@ -1,6 +1,7 @@
/* minigzip.c -- simulate gzip using the zlib compression library
* Copyright (C) 1995-2002 Jean-loup Gailly.
* For conditions of distribution and use, see copyright notice in zlib.h
* Adapted for Z_RLE by Cosmin Truta, 2003.
* For conditions of distribution and use, see copyright notice in zlib.h
*/
/*
@ -147,7 +148,7 @@ int gz_compress_mmap(in, out)
if (buf_len <= 0) return Z_ERRNO;
/* Now do the actual mmap: */
buf = mmap((caddr_t) 0, buf_len, PROT_READ, MAP_SHARED, ifd, (off_t)0);
buf = mmap((caddr_t) 0, buf_len, PROT_READ, MAP_SHARED, ifd, (off_t)0);
if (buf == (caddr_t)(-1)) return Z_ERRNO;
/* Compress the whole file at once: */
@ -179,8 +180,8 @@ void gz_uncompress(in, out)
if (len == 0) break;
if ((int)fwrite(buf, 1, (unsigned)len, out) != len) {
error("failed fwrite");
}
error("failed fwrite");
}
}
if (fclose(out)) error("failed fclose");
@ -260,10 +261,11 @@ void file_uncompress(file)
/* ===========================================================================
* Usage: minigzip [-d] [-f] [-h] [-1 to -9] [files...]
* Usage: minigzip [-d] [-f] [-h] [-r] [-1 to -9] [files...]
* -d : decompress
* -f : compress with Z_FILTERED
* -h : compress with Z_HUFFMAN_ONLY
* -r : compress with Z_RLE
* -1 to -9 : compression level
*/
@ -282,16 +284,18 @@ int main(argc, argv)
while (argc > 0) {
if (strcmp(*argv, "-d") == 0)
uncompr = 1;
uncompr = 1;
else if (strcmp(*argv, "-f") == 0)
outmode[3] = 'f';
outmode[3] = 'f';
else if (strcmp(*argv, "-h") == 0)
outmode[3] = 'h';
outmode[3] = 'h';
else if (strcmp(*argv, "-r") == 0)
outmode[3] = 'R';
else if ((*argv)[0] == '-' && (*argv)[1] >= '1' && (*argv)[1] <= '9' &&
(*argv)[2] == 0)
outmode[2] = (*argv)[1];
(*argv)[2] == 0)
outmode[2] = (*argv)[1];
else
break;
break;
argc--, argv++;
}
if (argc == 0) {
@ -315,6 +319,5 @@ int main(argc, argv)
}
} while (argv++, --argc);
}
exit(0);
return 0; /* to avoid warning */
return 0;
}

109
msdos/Makefile.bor Normal file
View File

@ -0,0 +1,109 @@
# Makefile for zlib
# Borland C++
# Updated for zlib-1.2.x by Cosmin Truta, 15-Mar-2003.
# To use, do "make -fmakefile.bor"
# To compile in small model, set below: MODEL=s
# WARNING: the small model is supported but only for small values of
# MAX_WBITS and MAX_MEM_LEVEL. For example:
# -DMAX_WBITS=11 -DDEF_WBITS=11 -DMAX_MEM_LEVEL=3
# If you wish to reduce the memory requirements (default 256K for big
# objects plus a few K), you can add to the LOC macro below:
# -DMAX_MEM_LEVEL=7 -DMAX_WBITS=14
# See zconf.h for details about the memory requirements.
# ------------ Turbo C++, Borland C++ ------------
# Optional nonstandard preprocessor flags (e.g. -DMAX_MEM_LEVEL=7)
# should be added to the environment via "set LOCAL_ZLIB=-DFOO" or added
# to the declaration of LOC here:
LOC = $(LOCAL_ZLIB)
# type for CPU required: 0: 8086, 1: 80186, 2: 80286, 3: 80386, etc.
CPU_TYP = 0
# memory model: one of s, m, c, l (small, medium, compact, large)
MODEL=l
# replace bcc with tcc for Turbo C++ 1.0, with bcc32 for the 32 bit version
CC=bcc
LD=bcc
AR=tlib
# compiler flags
# replace "-O2" by "-O -G -a -d" for Turbo C++ 1.0
CFLAGS=-O2 -Z -m$(MODEL) $(LOC)
LDFLAGS=-m$(MODEL) -f-
# variables
ZLIB_LIB = zlib_$(MODEL).lib
OBJ1 = adler32.obj compress.obj crc32.obj deflate.obj gzio.obj infback.obj
OBJ2 = inffast.obj inflate.obj inftrees.obj trees.obj uncompr.obj zutil.obj
OBJP1 = +adler32.obj+compress.obj+crc32.obj+deflate.obj+gzio.obj+infback.obj
OBJP2 = +inffast.obj+inflate.obj+inftrees.obj+trees.obj+uncompr.obj+zutil.obj
# targets
all: $(ZLIB_LIB) example.exe minigzip.exe
.c.obj:
$(CC) -c $(CFLAGS) $*.c
adler32.obj: adler32.c zlib.h zconf.h
compress.obj: compress.c zlib.h zconf.h
crc32.obj: crc32.c zlib.h zconf.h crc32.h
deflate.obj: deflate.c deflate.h zutil.h zlib.h zconf.h
gzio.obj: gzio.c zutil.h zlib.h zconf.h
infback.obj: infback.c zutil.h zlib.h zconf.h inftrees.h inflate.h \
inffast.h inffixed.h
inffast.obj: inffast.c zutil.h zlib.h zconf.h inftrees.h inflate.h \
inffast.h
inflate.obj: inflate.c zutil.h zlib.h zconf.h inftrees.h inflate.h \
inffast.h inffixed.h
inftrees.obj: inftrees.c zutil.h zlib.h zconf.h inftrees.h
trees.obj: trees.c zutil.h zlib.h zconf.h deflate.h trees.h
uncompr.obj: uncompr.c zlib.h zconf.h
zutil.obj: zutil.c zutil.h zlib.h zconf.h
example.obj: example.c zlib.h zconf.h
minigzip.obj: minigzip.c zlib.h zconf.h
# the command line is cut to fit in the MS-DOS 128 byte limit:
$(ZLIB_LIB): $(OBJ1) $(OBJ2)
-del $(ZLIB_LIB)
$(AR) $(ZLIB_LIB) $(OBJP1)
$(AR) $(ZLIB_LIB) $(OBJP2)
example.exe: example.obj $(ZLIB_LIB)
$(LD) $(LDFLAGS) example.obj $(ZLIB_LIB)
minigzip.exe: minigzip.obj $(ZLIB_LIB)
$(LD) $(LDFLAGS) minigzip.obj $(ZLIB_LIB)
test: example.exe minigzip.exe
example
echo hello world | minigzip | minigzip -d
clean:
-del *.obj
-del *.exe
-del *.lib
-del zlib_$(MODEL).bak
-del foo.gz

94
msdos/Makefile.tc Normal file
View File

@ -0,0 +1,94 @@
# Makefile for zlib
# Turbo C 2.01, Turbo C++ 1.01
# Updated for zlib-1.2.x by Cosmin Truta, 15-Mar-2003.
# To use, do "make -fmakefile.tc"
# To compile in small model, set below: MODEL=s
# WARNING: the small model is supported but only for small values of
# MAX_WBITS and MAX_MEM_LEVEL. For example:
# -DMAX_WBITS=11 -DMAX_MEM_LEVEL=3
# If you wish to reduce the memory requirements (default 256K for big
# objects plus a few K), you can add to CFLAGS below:
# -DMAX_MEM_LEVEL=7 -DMAX_WBITS=14
# See zconf.h for details about the memory requirements.
# ------------ Turbo C 2.01, Turbo C++ 1.01 ------------
MODEL=l
CC=tcc
LD=tcc
AR=tlib
# CFLAGS=-O2 -G -Z -m$(MODEL) -DMAX_WBITS=11 -DMAX_MEM_LEVEL=3
CFLAGS=-O2 -G -Z -m$(MODEL)
LDFLAGS=-m$(MODEL) -f-
# variables
ZLIB_LIB = zlib_$(MODEL).lib
OBJ1 = adler32.obj compress.obj crc32.obj deflate.obj gzio.obj infback.obj
OBJ2 = inffast.obj inflate.obj inftrees.obj trees.obj uncompr.obj zutil.obj
OBJP1 = +adler32.obj+compress.obj+crc32.obj+deflate.obj+gzio.obj+infback.obj
OBJP2 = +inffast.obj+inflate.obj+inftrees.obj+trees.obj+uncompr.obj+zutil.obj
# targets
all: $(ZLIB_LIB) example.exe minigzip.exe
.c.obj:
$(CC) -c $(CFLAGS) $*.c
adler32.obj: adler32.c zlib.h zconf.h
compress.obj: compress.c zlib.h zconf.h
crc32.obj: crc32.c zlib.h zconf.h crc32.h
deflate.obj: deflate.c deflate.h zutil.h zlib.h zconf.h
gzio.obj: gzio.c zutil.h zlib.h zconf.h
infback.obj: infback.c zutil.h zlib.h zconf.h inftrees.h inflate.h \
inffast.h inffixed.h
inffast.obj: inffast.c zutil.h zlib.h zconf.h inftrees.h inflate.h \
inffast.h
inflate.obj: inflate.c zutil.h zlib.h zconf.h inftrees.h inflate.h \
inffast.h inffixed.h
inftrees.obj: inftrees.c zutil.h zlib.h zconf.h inftrees.h
trees.obj: trees.c zutil.h zlib.h zconf.h deflate.h trees.h
uncompr.obj: uncompr.c zlib.h zconf.h
zutil.obj: zutil.c zutil.h zlib.h zconf.h
example.obj: example.c zlib.h zconf.h
minigzip.obj: minigzip.c zlib.h zconf.h
# the command line is cut to fit in the MS-DOS 128 byte limit:
$(ZLIB_LIB): $(OBJ1) $(OBJ2)
-del $(ZLIB_LIB)
$(AR) $(ZLIB_LIB) $(OBJP1)
$(AR) $(ZLIB_LIB) $(OBJP2)
example.exe: example.obj $(ZLIB_LIB)
$(LD) $(LDFLAGS) example.obj $(ZLIB_LIB)
minigzip.exe: minigzip.obj $(ZLIB_LIB)
$(LD) $(LDFLAGS) minigzip.obj $(ZLIB_LIB)
test: example.exe minigzip.exe
example
echo hello world | minigzip | minigzip -d
clean:
-del *.obj
-del *.exe
-del *.lib
-del zlib_$(MODEL).bak
-del foo.gz

125
old/msdos/Makefile.bor
View File

@ -1,125 +0,0 @@
# Makefile for zlib
# Borland C++ ************ UNTESTED ***********
# To use, do "make -fmakefile.bor"
# To compile in small model, set below: MODEL=s
# WARNING: the small model is supported but only for small values of
# MAX_WBITS and MAX_MEM_LEVEL. For example:
# -DMAX_WBITS=11 -DDEF_WBITS=11 -DMAX_MEM_LEVEL=3
# If you wish to reduce the memory requirements (default 256K for big
# objects plus a few K), you can add to the LOC macro below:
# -DMAX_MEM_LEVEL=7 -DMAX_WBITS=14
# See zconf.h for details about the memory requirements.
# ------------- Turbo C++, Borland C++ -------------
# Optional nonstandard preprocessor flags (e.g. -DMAX_MEM_LEVEL=7)
# should be added to the environment via "set LOCAL_ZLIB=-DFOO" or added
# to the declaration of LOC here:
LOC = $(LOCAL_ZLIB)
# Type for CPU required: 0: 8086, 1: 80186, 2: 80286, 3: 80386, etc.
CPU_TYP = 0
# Memory model: one of s, m, c, l (small, medium, compact, large)
MODEL=l
CC=bcc
# replace bcc with tcc for Turbo C++ 1.0, with bcc32 for the 32 bit version
LD=$(CC)
AR=tlib
# compiler flags
CFLAGS=-O2 -Z -m$(MODEL) $(LOC)
# replace "-O2" by "-O -G -a -d" for Turbo C++ 1.0
LDFLAGS=-m$(MODEL)
O=.obj
# variables
OBJ1 = adler32$(O) compress$(O) crc32$(O) gzio$(O) uncompr$(O) deflate$(O) \
trees$(O)
OBJP1 = adler32$(O)+compress$(O)+crc32$(O)+gzio$(O)+uncompr$(O)+deflate$(O)+\
trees$(O)
OBJ2 = zutil$(O) inflate$(O) infblock$(O) inftrees$(O) infcodes$(O) \
infutil$(O) inffast$(O)
OBJP2 = zutil$(O)+inflate$(O)+infblock$(O)+inftrees$(O)+infcodes$(O)+\
infutil$(O)+inffast$(O)
ZLIB_H = zlib.h zconf.h
ZUTIL_H = zutil.h $(ZLIB_H)
ZLIB_LIB = zlib_$(MODEL).lib
all: test
# individual dependencies and action rules:
adler32.obj: adler32.c $(ZLIB_H)
$(CC) -c $(CFLAGS) $*.c
compress.obj: compress.c $(ZLIB_H)
$(CC) -c $(CFLAGS) $*.c
crc32.obj: crc32.c $(ZLIB_H)
$(CC) -c $(CFLAGS) $*.c
deflate.obj: deflate.c deflate.h $(ZUTIL_H)
$(CC) -c $(CFLAGS) $*.c
gzio.obj: gzio.c $(ZUTIL_H)
$(CC) -c $(CFLAGS) $*.c
infblock.obj: infblock.c $(ZUTIL_H) infblock.h inftrees.h infcodes.h infutil.h
$(CC) -c $(CFLAGS) $*.c
infcodes.obj: infcodes.c $(ZUTIL_H) inftrees.h infutil.h infcodes.h inffast.h
$(CC) -c $(CFLAGS) $*.c
inflate.obj: inflate.c $(ZUTIL_H) infblock.h
$(CC) -c $(CFLAGS) $*.c
inftrees.obj: inftrees.c $(ZUTIL_H) inftrees.h
$(CC) -c $(CFLAGS) $*.c
infutil.obj: infutil.c $(ZUTIL_H) inftrees.h infutil.h
$(CC) -c $(CFLAGS) $*.c
inffast.obj: inffast.c $(ZUTIL_H) inftrees.h infutil.h inffast.h
$(CC) -c $(CFLAGS) $*.c
trees.obj: trees.c deflate.h $(ZUTIL_H)
$(CC) -c $(CFLAGS) $*.c
uncompr.obj: uncompr.c $(ZLIB_H)
$(CC) -c $(CFLAGS) $*.c
zutil.obj: zutil.c $(ZUTIL_H)
$(CC) -c $(CFLAGS) $*.c
example.obj: example.c $(ZLIB_H)
$(CC) -c $(CFLAGS) $*.c
minigzip.obj: minigzip.c $(ZLIB_H)
$(CC) -c $(CFLAGS) $*.c
# we must cut the command line to fit in the MS/DOS 128 byte limit:
$(ZLIB_LIB): $(OBJ1) $(OBJ2)
del $(ZLIB_LIB)
$(AR) $(ZLIB_LIB) +$(OBJP1)
$(AR) $(ZLIB_LIB) +$(OBJP2)
example.exe: example.obj $(ZLIB_LIB)
$(LD) $(LDFLAGS) example.obj $(ZLIB_LIB)
minigzip.exe: minigzip.obj $(ZLIB_LIB)
$(LD) $(LDFLAGS) minigzip.obj $(ZLIB_LIB)
test: example.exe minigzip.exe
example
echo hello world | minigzip | minigzip -d
#clean:
# del *.obj
# del *.exe

108
old/msdos/Makefile.tc
View File

@ -1,108 +0,0 @@
# Makefile for zlib
# TurboC 2.0
# To use, do "make -fmakefile.tc"
# To compile in small model, set below: MODEL=-ms
# WARNING: the small model is supported but only for small values of
# MAX_WBITS and MAX_MEM_LEVEL. For example:
# -DMAX_WBITS=11 -DMAX_MEM_LEVEL=3
# If you wish to reduce the memory requirements (default 256K for big
# objects plus a few K), you can add to CFLAGS below:
# -DMAX_MEM_LEVEL=7 -DMAX_WBITS=14
# See zconf.h for details about the memory requirements.
# ------------- Turbo C 2.0 -------------
MODEL=l
# CFLAGS=-O2 -G -Z -m$(MODEL) -DMAX_WBITS=11 -DMAX_MEM_LEVEL=3
CFLAGS=-O2 -G -Z -m$(MODEL)
CC=tcc -I\tc\include
LD=tcc -L\tc\lib
AR=tlib
LDFLAGS=-m$(MODEL) -f-
O=.obj
# variables
OBJ1 = adler32$(O) compress$(O) crc32$(O) gzio$(O) uncompr$(O) deflate$(O) \
trees$(O)
OBJP1 = adler32$(O)+compress$(O)+crc32$(O)+gzio$(O)+uncompr$(O)+deflate$(O)+\
trees$(O)
OBJ2 = zutil$(O) inflate$(O) infblock$(O) inftrees$(O) infcodes$(O) \
infutil$(O) inffast$(O)
OBJP2 = zutil$(O)+inflate$(O)+infblock$(O)+inftrees$(O)+infcodes$(O)+\
infutil$(O)+inffast$(O)
ZLIB_H = zlib.h zconf.h
ZUTIL_H = zutil.h $(ZLIB_H)
ZLIB_LIB = zlib_$(MODEL).lib
all: test
adler32.obj: adler32.c $(ZLIB_H)
$(CC) -c $(CFLAGS) $*.c
compress.obj: compress.c $(ZLIB_H)
$(CC) -c $(CFLAGS) $*.c
crc32.obj: crc32.c $(ZLIB_H)
$(CC) -c $(CFLAGS) $*.c
deflate.obj: deflate.c deflate.h $(ZUTIL_H)
$(CC) -c $(CFLAGS) $*.c
gzio.obj: gzio.c $(ZUTIL_H)
$(CC) -c $(CFLAGS) $*.c
infblock.obj: infblock.c $(ZUTIL_H) infblock.h inftrees.h infcodes.h infutil.h
$(CC) -c $(CFLAGS) $*.c
infcodes.obj: infcodes.c $(ZUTIL_H) inftrees.h infutil.h infcodes.h inffast.h
$(CC) -c $(CFLAGS) $*.c
inflate.obj: inflate.c $(ZUTIL_H) infblock.h
$(CC) -c $(CFLAGS) $*.c
inftrees.obj: inftrees.c $(ZUTIL_H) inftrees.h
$(CC) -c $(CFLAGS) $*.c
infutil.obj: infutil.c $(ZUTIL_H) inftrees.h infutil.h
$(CC) -c $(CFLAGS) $*.c
inffast.obj: inffast.c $(ZUTIL_H) inftrees.h infutil.h inffast.h
$(CC) -c $(CFLAGS) $*.c
trees.obj: trees.c deflate.h $(ZUTIL_H)
$(CC) -c $(CFLAGS) $*.c
uncompr.obj: uncompr.c $(ZLIB_H)
$(CC) -c $(CFLAGS) $*.c
zutil.obj: zutil.c $(ZUTIL_H)
$(CC) -c $(CFLAGS) $*.c
example.obj: example.c $(ZLIB_H)
$(CC) -c $(CFLAGS) $*.c
minigzip.obj: minigzip.c $(ZLIB_H)
$(CC) -c $(CFLAGS) $*.c
# we must cut the command line to fit in the MS/DOS 128 byte limit:
$(ZLIB_LIB): $(OBJ1) $(OBJ2)
del $(ZLIB_LIB)
$(AR) $(ZLIB_LIB) +$(OBJP1)
$(AR) $(ZLIB_LIB) +$(OBJP2)
example.exe: example.obj $(ZLIB_LIB)
$(LD) $(LDFLAGS) -eexample.exe example.obj $(ZLIB_LIB)
minigzip.exe: minigzip.obj $(ZLIB_LIB)
$(LD) $(LDFLAGS) -eminigzip.exe minigzip.obj $(ZLIB_LIB)
test: example.exe minigzip.exe
example
echo hello world | minigzip | minigzip -d
#clean:
# del *.obj
# del *.exe

76
trees.c
View File

@ -1,6 +1,6 @@
/* trees.c -- output deflated data using Huffman coding
* Copyright (C) 1995-2003 Jean-loup Gailly
* For conditions of distribution and use, see copyright notice in zlib.h
* For conditions of distribution and use, see copyright notice in zlib.h
*/
/*
@ -334,42 +334,42 @@ void gen_trees_header()
Assert (header != NULL, "Can't open trees.h");
fprintf(header,
"/* header created automatically with -DGEN_TREES_H */\n\n");
"/* header created automatically with -DGEN_TREES_H */\n\n");
fprintf(header, "local const ct_data static_ltree[L_CODES+2] = {\n");
for (i = 0; i < L_CODES+2; i++) {
fprintf(header, "{{%3u},{%3u}}%s", static_ltree[i].Code,
static_ltree[i].Len, SEPARATOR(i, L_CODES+1, 5));
fprintf(header, "{{%3u},{%3u}}%s", static_ltree[i].Code,
static_ltree[i].Len, SEPARATOR(i, L_CODES+1, 5));
}
fprintf(header, "local const ct_data static_dtree[D_CODES] = {\n");
for (i = 0; i < D_CODES; i++) {
fprintf(header, "{{%2u},{%2u}}%s", static_dtree[i].Code,
static_dtree[i].Len, SEPARATOR(i, D_CODES-1, 5));
fprintf(header, "{{%2u},{%2u}}%s", static_dtree[i].Code,
static_dtree[i].Len, SEPARATOR(i, D_CODES-1, 5));
}
fprintf(header, "const uch _dist_code[DIST_CODE_LEN] = {\n");
for (i = 0; i < DIST_CODE_LEN; i++) {
fprintf(header, "%2u%s", _dist_code[i],
SEPARATOR(i, DIST_CODE_LEN-1, 20));
fprintf(header, "%2u%s", _dist_code[i],
SEPARATOR(i, DIST_CODE_LEN-1, 20));
}
fprintf(header, "const uch _length_code[MAX_MATCH-MIN_MATCH+1]= {\n");
for (i = 0; i < MAX_MATCH-MIN_MATCH+1; i++) {
fprintf(header, "%2u%s", _length_code[i],
SEPARATOR(i, MAX_MATCH-MIN_MATCH, 20));
fprintf(header, "%2u%s", _length_code[i],
SEPARATOR(i, MAX_MATCH-MIN_MATCH, 20));
}
fprintf(header, "local const int base_length[LENGTH_CODES] = {\n");
for (i = 0; i < LENGTH_CODES; i++) {
fprintf(header, "%1u%s", base_length[i],
SEPARATOR(i, LENGTH_CODES-1, 20));
fprintf(header, "%1u%s", base_length[i],
SEPARATOR(i, LENGTH_CODES-1, 20));
}
fprintf(header, "local const int base_dist[D_CODES] = {\n");
for (i = 0; i < D_CODES; i++) {
fprintf(header, "%5u%s", base_dist[i],
SEPARATOR(i, D_CODES-1, 10));
fprintf(header, "%5u%s", base_dist[i],
SEPARATOR(i, D_CODES-1, 10));
}
fclose(header);
@ -930,39 +930,39 @@ void _tr_flush_block(s, buf, stored_len, eof)
/* Build the Huffman trees unless a stored block is forced */
if (s->level > 0) {
/* Check if the file is ascii or binary */
if (s->data_type == Z_UNKNOWN) set_data_type(s);
/* Check if the file is ascii or binary */
if (s->data_type == Z_UNKNOWN) set_data_type(s);
/* Construct the literal and distance trees */
build_tree(s, (tree_desc *)(&(s->l_desc)));
Tracev((stderr, "\nlit data: dyn %ld, stat %ld", s->opt_len,
s->static_len));
/* Construct the literal and distance trees */
build_tree(s, (tree_desc *)(&(s->l_desc)));
Tracev((stderr, "\nlit data: dyn %ld, stat %ld", s->opt_len,
s->static_len));
build_tree(s, (tree_desc *)(&(s->d_desc)));
Tracev((stderr, "\ndist data: dyn %ld, stat %ld", s->opt_len,
s->static_len));
/* At this point, opt_len and static_len are the total bit lengths of
* the compressed block data, excluding the tree representations.
*/
build_tree(s, (tree_desc *)(&(s->d_desc)));
Tracev((stderr, "\ndist data: dyn %ld, stat %ld", s->opt_len,
s->static_len));
/* At this point, opt_len and static_len are the total bit lengths of
* the compressed block data, excluding the tree representations.
*/
/* Build the bit length tree for the above two trees, and get the index
* in bl_order of the last bit length code to send.
*/
max_blindex = build_bl_tree(s);
/* Build the bit length tree for the above two trees, and get the index
* in bl_order of the last bit length code to send.
*/
max_blindex = build_bl_tree(s);
/* Determine the best encoding. Compute the block lengths in bytes. */
opt_lenb = (s->opt_len+3+7)>>3;
static_lenb = (s->static_len+3+7)>>3;
opt_lenb = (s->opt_len+3+7)>>3;
static_lenb = (s->static_len+3+7)>>3;
Tracev((stderr, "\nopt %lu(%lu) stat %lu(%lu) stored %lu lit %u ",
opt_lenb, s->opt_len, static_lenb, s->static_len, stored_len,
s->last_lit));
Tracev((stderr, "\nopt %lu(%lu) stat %lu(%lu) stored %lu lit %u ",
opt_lenb, s->opt_len, static_lenb, s->static_len, stored_len,
s->last_lit));
if (static_lenb <= opt_lenb) opt_lenb = static_lenb;
if (static_lenb <= opt_lenb) opt_lenb = static_lenb;
} else {
Assert(buf != (char*)0, "lost buf");
opt_lenb = static_lenb = stored_len + 5; /* force a stored block */
opt_lenb = static_lenb = stored_len + 5; /* force a stored block */
}
#ifdef FORCE_STORED
@ -1199,7 +1199,7 @@ local void copy_block(s, buf, len, header)
s->last_eob_len = 8; /* enough lookahead for inflate */
if (header) {
put_short(s, (ush)len);
put_short(s, (ush)len);
put_short(s, (ush)~len);
#ifdef DEBUG
s->bits_sent += 2*16;

76
win32/Makefile-dll.msc Normal file
View File

@ -0,0 +1,76 @@
# Makefile for zlib.dll -- Microsoft (Visual) C.
# Author: Cosmin Truta, 11-Mar-2003.
#
# Usage: nmake -f win32/Makefile-dll.msc
CC = cl
LD = cl
CFLAGS = -nologo -MD -O2
LDFLAGS = -nologo
OBJS = adler32.obj compress.obj crc32.obj deflate.obj gzio.obj infback.obj \
inffast.obj inflate.obj inftrees.obj trees.obj uncompr.obj zutil.obj
# targets
all: zlib.dll zlib.lib example.exe minigzip.exe
zlib.lib: $(OBJS)
lib -out:$@ $(OBJS)
zlib.dll: $(OBJS) win32/zlib.def
link -release -def:win32/zlib.def -dll -out:$@ $(OBJS)
zlib.lib: zlib.dll
example.exe: example.obj zlib.lib
$(LD) $(LDFLAGS) example.obj zlib.lib
minigzip.exe: minigzip.obj zlib.lib
$(LD) $(LDFLAGS) minigzip.obj zlib.lib
.c.obj:
$(CC) -c $(CFLAGS) $*.c
adler32.obj: adler32.c zlib.h zconf.h
compress.obj: compress.c zlib.h zconf.h
crc32.obj: crc32.c zlib.h zconf.h crc32.h
deflate.obj: deflate.c deflate.h zutil.h zlib.h zconf.h
gzio.obj: gzio.c zutil.h zlib.h zconf.h
infback.obj: infback.c zutil.h zlib.h zconf.h inftrees.h inflate.h \
inffast.h inffixed.h
inffast.obj: inffast.c zutil.h zlib.h zconf.h inftrees.h inflate.h \
inffast.h
inflate.obj: inflate.c zutil.h zlib.h zconf.h inftrees.h inflate.h \
inffast.h inffixed.h
inftrees.obj: inftrees.c zutil.h zlib.h zconf.h inftrees.h
trees.obj: trees.c zutil.h zlib.h zconf.h deflate.h trees.h
uncompr.obj: uncompr.c zlib.h zconf.h
zutil.obj: zutil.c zutil.h zlib.h zconf.h
example.obj: example.c zlib.h zconf.h
minigzip.obj: minigzip.c zlib.h zconf.h
# testing
test: example.exe minigzip.exe
example
echo hello world | minigzip | minigzip -d
# cleanup
clean:
del *.obj
del *.dll
del *.lib
del *.exp
del *.exe

91
win32/Makefile.bor Normal file
View File

@ -0,0 +1,91 @@
# Makefile for zlib
# Borland C++ for Win32
# Updated for zlib-1.2.x by Cosmin Truta, 11-Mar-2003.
# Usage: "make -f win32/makefile.bor"
# ------------ Borland C++ for Win32 ------------
# Optional nonstandard preprocessor flags (e.g. -DMAX_MEM_LEVEL=7)
# should be added to the environment via "set LOCAL_ZLIB=-DFOO" or added
# to the declaration of LOC here:
LOC = $(LOCAL_ZLIB)
CC = bcc32
LD = bcc32
AR = tlib
CFLAGS = -O2 -d -k- $(LOC)
LDFLAGS = $(LOC)
# variables
ZLIB_LIB = zlib.lib
OBJ1 = adler32.obj compress.obj crc32.obj deflate.obj gzio.obj infback.obj
OBJ2 = inffast.obj inflate.obj inftrees.obj trees.obj uncompr.obj zutil.obj
OBJP1 = +adler32.obj+compress.obj+crc32.obj+deflate.obj+gzio.obj+infback.obj
OBJP2 = +inffast.obj+inflate.obj+inftrees.obj+trees.obj+uncompr.obj+zutil.obj
# targets
all: $(ZLIB_LIB) example.exe minigzip.exe
.c.obj:
$(CC) -c $(CFLAGS) $*.c
adler32.obj: adler32.c zlib.h zconf.h
compress.obj: compress.c zlib.h zconf.h
crc32.obj: crc32.c zlib.h zconf.h crc32.h
deflate.obj: deflate.c deflate.h zutil.h zlib.h zconf.h
gzio.obj: gzio.c zutil.h zlib.h zconf.h
infback.obj: infback.c zutil.h zlib.h zconf.h inftrees.h inflate.h \
inffast.h inffixed.h
inffast.obj: inffast.c zutil.h zlib.h zconf.h inftrees.h inflate.h \
inffast.h
inflate.obj: inflate.c zutil.h zlib.h zconf.h inftrees.h inflate.h \
inffast.h inffixed.h
inftrees.obj: inftrees.c zutil.h zlib.h zconf.h inftrees.h
trees.obj: trees.c zutil.h zlib.h zconf.h deflate.h trees.h
uncompr.obj: uncompr.c zlib.h zconf.h
zutil.obj: zutil.c zutil.h zlib.h zconf.h
example.obj: example.c zlib.h zconf.h
minigzip.obj: minigzip.c zlib.h zconf.h
# For the sake of the old Borland make,
# the command line is cut to fit in the MS-DOS 128 byte limit:
$(ZLIB_LIB): $(OBJ1) $(OBJ2)
-del $(ZLIB_LIB)
$(AR) $(ZLIB_LIB) $(OBJP1)
$(AR) $(ZLIB_LIB) $(OBJP2)
example.exe: example.obj $(ZLIB_LIB)
$(LD) $(LDFLAGS) example.obj $(ZLIB_LIB)
minigzip.exe: minigzip.obj $(ZLIB_LIB)
$(LD) $(LDFLAGS) minigzip.obj $(ZLIB_LIB)
test: example.exe minigzip.exe
example
echo hello world | minigzip | minigzip -d
clean:
-del *.obj
-del *.exe
-del *.lib
-del *.tds
-del zlib.bak
-del foo.gz

105
win32/Makefile.gcc Normal file
View File

@ -0,0 +1,105 @@
# Makefile for zlib, derived from Makefile.dj2.
# Modified for mingw32 by C. Spieler, 6/16/98.
# Updated for zlib-1.2.x by Cosmin Truta, 11-Mar-2003.
# Tested under Cygwin and MinGW.
# Copyright (C) 1995-1998 Jean-loup Gailly.
# For conditions of distribution and use, see copyright notice in zlib.h
# To compile, or to compile and test, type:
#
# make -fmakefile.gcc; make test -fmakefile.gcc
#
# To install libz.a, zconf.h and zlib.h in the system directories, type:
#
# make install -fmakefile.gcc
#
LIB = libz.a
SHAREDLIB = libz.so
VER = 1.2.0
CC = gcc
#CFLAGS = -DDEBUG -MMD -g
CFLAGS = $(LOC) -O3 -Wall
AS = $(CC)
ASFLAGS = $(LOC) -Wall
LD = $(CC)
LDFLAGS = $(LOC) -s
AR = ar
ARFLAGS = rcs
CP = cp -fp
# If GNU install is available, replace $(CP) with install.
INSTALL = $(CP)
RM = rm -f
prefix = /usr/local
exec_prefix = $(prefix)
OBJS = adler32.o compress.o crc32.o deflate.o gzio.o infback.o \
inffast.o inflate.o inftrees.o trees.o uncompr.o zutil.o
# to use the asm code: make OBJA=match.o
OBJA =
TEST_OBJS = example.o minigzip.o
all: $(LIB) example minigzip
test: all
./example
echo hello world | ./minigzip | ./minigzip -d
.c.o:
$(CC) $(CFLAGS) -c -o $@ $<
libz.a: $(OBJS)
$(AR) $(ARFLAGS) $@ $(OBJS)
example: example.o $(LIB)
$(LD) -o $@ $< $(LIB)
minigzip: minigzip.o $(LIB)
$(LD) -o $@ $< $(LIB)
# INCLUDE_PATH and LIBRARY_PATH were set for [make] in djgpp.env .
.PHONY : uninstall clean
install: zlib.h zconf.h $(LIB)
-@if not exist $(INCLUDE_PATH)/nul mkdir $(INCLUDE_PATH)
-@if not exist $(LIBRARY_PATH)/nul mkdir $(LIBRARY_PATH)
$(INSTALL) zlib.h $(INCLUDE_PATH)
$(INSTALL) zconf.h $(INCLUDE_PATH)
$(INSTALL) $(LIB) $(LIBRARY_PATH)
uninstall:
$(RM) $(INCLUDE_PATH)/zlib.h
$(RM) $(INCLUDE_PATH)/zconf.h
$(RM) $(LIBRARY_PATH)/libz.a
clean:
$(RM) *.o
$(RM) *.exe
$(RM) libz.a
$(RM) foo.gz
adler32.o: zlib.h zconf.h
compress.o: zlib.h zconf.h
crc32.o: crc32.h zlib.h zconf.h
deflate.o: deflate.h zutil.h zlib.h zconf.h
example.o: zlib.h zconf.h
gzio.o: zutil.h zlib.h zconf.h
inffast.o: zutil.h zlib.h zconf.h inftrees.h inflate.h inffast.h
inflate.o: zutil.h zlib.h zconf.h inftrees.h inflate.h inffast.h
infback.o: zutil.h zlib.h zconf.h inftrees.h inflate.h inffast.h
inftrees.o: zutil.h zlib.h zconf.h inftrees.h
minigzip.o: zlib.h zconf.h
trees.o: deflate.h zutil.h zlib.h zconf.h trees.h
uncompr.o: zlib.h zconf.h
zutil.o: zutil.h zlib.h zconf.h

69
win32/Makefile.msc Normal file
View File

@ -0,0 +1,69 @@
# Makefile for (static) zlib -- Microsoft (Visual) C.
# Author: Cosmin Truta, 11-Mar-2003.
#
# Usage: nmake -f win32/Makefile.msc
CC = cl
LD = cl
CFLAGS = -nologo -MD -O2
LDFLAGS = -nologo
OBJS = adler32.obj compress.obj crc32.obj deflate.obj gzio.obj infback.obj \
inffast.obj inflate.obj inftrees.obj trees.obj uncompr.obj zutil.obj
# targets
all: zlib.lib example.exe minigzip.exe
zlib.lib: $(OBJS)
lib -out:$@ $(OBJS)
example.exe: example.obj zlib.lib
$(LD) $(LDFLAGS) example.obj zlib.lib
minigzip.exe: minigzip.obj zlib.lib
$(LD) $(LDFLAGS) minigzip.obj zlib.lib
.c.obj:
$(CC) -c $(CFLAGS) $*.c
adler32.obj: adler32.c zlib.h zconf.h
compress.obj: compress.c zlib.h zconf.h
crc32.obj: crc32.c zlib.h zconf.h crc32.h
deflate.obj: deflate.c deflate.h zutil.h zlib.h zconf.h
gzio.obj: gzio.c zutil.h zlib.h zconf.h
infback.obj: infback.c zutil.h zlib.h zconf.h inftrees.h inflate.h \
inffast.h inffixed.h
inffast.obj: inffast.c zutil.h zlib.h zconf.h inftrees.h inflate.h \
inffast.h
inflate.obj: inflate.c zutil.h zlib.h zconf.h inftrees.h inflate.h \
inffast.h inffixed.h
inftrees.obj: inftrees.c zutil.h zlib.h zconf.h inftrees.h
trees.obj: trees.c zutil.h zlib.h zconf.h deflate.h trees.h
uncompr.obj: uncompr.c zlib.h zconf.h
zutil.obj: zutil.c zutil.h zlib.h zconf.h
example.obj: example.c zlib.h zconf.h
minigzip.obj: minigzip.c zlib.h zconf.h
# testing
test: example.exe minigzip.exe
example
echo hello world | minigzip | minigzip -d
# cleanup
clean:
del *.obj
del *.lib
del *.exe

37
contrib/minizip/zlibvc.def → win32/zlib.def
View File

@ -1,12 +1,5 @@
LIBRARY "zlib"
DESCRIPTION '"""zlib data compression library"""'
VERSION 1.11
HEAPSIZE 1048576,8192
LIBRARY zlib.dll
DESCRIPTION "zlib compression library for Windows"
EXPORTS
adler32 @1
@ -50,25 +43,7 @@ EXPORTS
compress2 @39
gzputs @40
gzgets @41
unzOpen @61
unzClose @62
unzGetGlobalInfo @63
unzGetCurrentFileInfo @64
unzGoToFirstFile @65
unzGoToNextFile @66
unzOpenCurrentFile @67
unzReadCurrentFile @68
unztell @70
unzeof @71
unzCloseCurrentFile @72
unzGetGlobalComment @73
unzStringFileNameCompare @74
unzLocateFile @75
unzGetLocalExtrafield @76
zipOpen @80
zipOpenNewFileInZip @81
zipWriteInFileInZip @82
zipCloseFileInZip @83
zipClose @84
; The following functions exist since zlib-1.2.0
; deflateBound @42
; compressBound @43
; etc.

31
zconf.h
View File

@ -91,7 +91,7 @@
#ifndef STDC
# ifndef const /* cannot use !defined(STDC) && !defined(const) on Mac */
# define const /* note: need a more gentle solution here */
# define const /* note: need a more gentle solution here */
# endif
#endif
@ -101,7 +101,10 @@
#endif
/* Old Borland C incorrectly complains about missing returns: */
#if defined(__BORLANDC__) && (__BORLANDC__ < 0x500)
#if defined(__BORLANDC__) && (__BORLANDC__ < 0x460)
# define NEED_DUMMY_RETURN
#endif
#if defined(__TURBOC__) && !defined(__BORLANDC__)
# define NEED_DUMMY_RETURN
#endif
@ -169,17 +172,24 @@
# endif
#endif
#if defined(WIN32) && (!defined(ZLIB_WIN32_NODLL)) && (!defined(ZLIB_DLL))
# define ZLIB_DLL
#endif
/* Compile with -DZLIB_DLL for Windows DLL support */
#if defined(ZLIB_DLL)
# if defined(_WINDOWS) || defined(WINDOWS)
# ifdef FAR
# undef FAR
# if defined(_WINDOWS) || defined(WINDOWS) || defined(WIN32)
# ifndef WINAPIV
# ifdef FAR
# undef FAR
# endif
# include <windows.h>
# endif
# include <windows.h>
# define ZEXPORT WINAPI
# ifdef WIN32
# define ZEXPORT WINAPI
# define ZEXPORTVA WINAPIV
# else
# define ZEXPORT WINAPI _export
# define ZEXPORTVA FAR _cdecl _export
# endif
# endif
@ -187,7 +197,7 @@
# if (__BORLANDC__ >= 0x0500) && defined (WIN32)
# include <windows.h>
# define ZEXPORT __declspec(dllexport) WINAPI
# define ZEXPORTRVA __declspec(dllexport) WINAPIV
# define ZEXPORTVA __declspec(dllexport) WINAPIV
# else
# if defined (_Windows) && defined (__DLL__)
# define ZEXPORT _export
@ -246,9 +256,12 @@ typedef uLong FAR uLongf;
typedef Byte *voidp;
#endif
#if 0 /* HAVE_UNISTD_H -- this line is updated by ./configure */
#if 0 /* HAVE_UNISTD_H -- this line is updated by ./configure */
# include <sys/types.h> /* for off_t */
# include <unistd.h> /* for SEEK_* and off_t */
# ifdef VMS
# include <unixio.h> /* for off_t */
# endif
# define z_off_t off_t
#endif
#ifndef SEEK_SET

31
zconf.in.h
View File

@ -91,7 +91,7 @@
#ifndef STDC
# ifndef const /* cannot use !defined(STDC) && !defined(const) on Mac */
# define const /* note: need a more gentle solution here */
# define const /* note: need a more gentle solution here */
# endif
#endif
@ -101,7 +101,10 @@
#endif
/* Old Borland C incorrectly complains about missing returns: */
#if defined(__BORLANDC__) && (__BORLANDC__ < 0x500)
#if defined(__BORLANDC__) && (__BORLANDC__ < 0x460)
# define NEED_DUMMY_RETURN
#endif
#if defined(__TURBOC__) && !defined(__BORLANDC__)
# define NEED_DUMMY_RETURN
#endif
@ -169,17 +172,24 @@
# endif
#endif
#if defined(WIN32) && (!defined(ZLIB_WIN32_NODLL)) && (!defined(ZLIB_DLL))
# define ZLIB_DLL
#endif
/* Compile with -DZLIB_DLL for Windows DLL support */
#if defined(ZLIB_DLL)
# if defined(_WINDOWS) || defined(WINDOWS)
# ifdef FAR
# undef FAR
# if defined(_WINDOWS) || defined(WINDOWS) || defined(WIN32)
# ifndef WINAPIV
# ifdef FAR
# undef FAR
# endif
# include <windows.h>
# endif
# include <windows.h>
# define ZEXPORT WINAPI
# ifdef WIN32
# define ZEXPORT WINAPI
# define ZEXPORTVA WINAPIV
# else
# define ZEXPORT WINAPI _export
# define ZEXPORTVA FAR _cdecl _export
# endif
# endif
@ -187,7 +197,7 @@
# if (__BORLANDC__ >= 0x0500) && defined (WIN32)
# include <windows.h>
# define ZEXPORT __declspec(dllexport) WINAPI
# define ZEXPORTRVA __declspec(dllexport) WINAPIV
# define ZEXPORTVA __declspec(dllexport) WINAPIV
# else
# if defined (_Windows) && defined (__DLL__)
# define ZEXPORT _export
@ -246,9 +256,12 @@ typedef uLong FAR uLongf;
typedef Byte *voidp;
#endif
#if 0 /* HAVE_UNISTD_H -- this line is updated by ./configure */
#if 0 /* HAVE_UNISTD_H -- this line is updated by ./configure */
# include <sys/types.h> /* for off_t */
# include <unistd.h> /* for SEEK_* and off_t */
# ifdef VMS
# include <unixio.h> /* for off_t */
# endif
# define z_off_t off_t
#endif
#ifndef SEEK_SET

37
zlib.h
View File

@ -1,5 +1,5 @@
/* zlib.h -- interface of the 'zlib' general purpose compression library
version 1.2.0, March 9th, 2003
version 1.2.0.1, March 17th, 2003
Copyright (C) 1995-2003 Jean-loup Gailly and Mark Adler
@ -37,7 +37,7 @@
extern "C" {
#endif
#define ZLIB_VERSION "1.2.0"
#define ZLIB_VERSION "1.2.0.1"
/*
The 'zlib' compression library provides in-memory compression and
@ -165,6 +165,7 @@ typedef z_stream FAR *z_streamp;
#define Z_FILTERED 1
#define Z_HUFFMAN_ONLY 2
#define Z_RLE 3
#define Z_DEFAULT_STRATEGY 0
/* compression strategy; see deflateInit2() below for details */
@ -461,14 +462,16 @@ ZEXTERN int ZEXPORT deflateInit2 OF((z_streamp strm,
The strategy parameter is used to tune the compression algorithm. Use the
value Z_DEFAULT_STRATEGY for normal data, Z_FILTERED for data produced by a
filter (or predictor), or Z_HUFFMAN_ONLY to force Huffman encoding only (no
string match). Filtered data consists mostly of small values with a
somewhat random distribution. In this case, the compression algorithm is
tuned to compress them better. The effect of Z_FILTERED is to force more
Huffman coding and less string matching; it is somewhat intermediate
between Z_DEFAULT and Z_HUFFMAN_ONLY. The strategy parameter only affects
the compression ratio but not the correctness of the compressed output even
if it is not set appropriately.
filter (or predictor), Z_HUFFMAN_ONLY to force Huffman encoding only (no
string match), or Z_RLE to limit match distances to one (run-length
encoding). Filtered data consists mostly of small values with a somewhat
random distribution. In this case, the compression algorithm is tuned to
compress them better. The effect of Z_FILTERED is to force more Huffman
coding and less string matching; it is somewhat intermediate between
Z_DEFAULT and Z_HUFFMAN_ONLY. Z_RLE is designed to be almost as fast as
Z_HUFFMAN_ONLY, but give better compression for PNG image data. The strategy
parameter only affects the compression ratio but not the correctness of the
compressed output even if it is not set appropriately.
deflateInit2 returns Z_OK if success, Z_MEM_ERROR if there was not enough
memory, Z_STREAM_ERROR if a parameter is invalid (such as an invalid
@ -843,8 +846,9 @@ ZEXTERN gzFile ZEXPORT gzopen OF((const char *path, const char *mode));
Opens a gzip (.gz) file for reading or writing. The mode parameter
is as in fopen ("rb" or "wb") but can also include a compression level
("wb9") or a strategy: 'f' for filtered data as in "wb6f", 'h' for
Huffman only compression as in "wb1h". (See the description
of deflateInit2 for more information about the strategy parameter.)
Huffman only compression as in "wb1h", or 'R' for run-length encoding
as in "wb1R". (See the description of deflateInit2 for more information
about the strategy parameter.)
gzopen can be used to read a file which is not in gzip format; in this
case gzread will directly read from the file without decompression.
@ -896,9 +900,12 @@ ZEXTERN int ZEXPORTVA gzprintf OF((gzFile file, const char *format, ...));
Converts, formats, and writes the args to the compressed file under
control of the format string, as in fprintf. gzprintf returns the number of
uncompressed bytes actually written (0 in case of error). The number of
uncompressed bytes written is limited to 4095. The caller should assure
that this limit is not exceeded, since otherwise a buffer overflow may
result.
uncompressed bytes written is limited to 4095. The caller should assure that
this limit is not exceeded. If it is exceeded, then either gzprintf() will
return an error (0) with nothing written, or there will be a buffer overflow
with unpredictable consequences. The latter is possible only if zlib was
compiled with insecure variants of printf, i.e. sprintf() or vsprintf()
because the secure snprintf() or vsnprintf() functions were not available.
*/
ZEXTERN int ZEXPORT gzputs OF((gzFile file, const char *s));

24
zutil.h
View File

@ -150,6 +150,30 @@ extern const char * const z_errmsg[10]; /* indexed by 2-zlib_error */
/* functions */
#ifdef __STDC_VERSION__
# if __STDC_VERSION__ >= 199901L
# ifndef STDC99
# define STDC99
# endif
# endif
#endif
#if !defined(STDC99) && !(defined(__TURBOC__) && __TURBOC__ >= 0x550) && !defined(VSNPRINTF_DEFINED)
# ifdef MSDOS
/* vsnprintf may exist on some MS-DOS compilers (DJGPP?),
but for now we just assume it doesn't. */
# define NO_vsnprintf
# endif
# ifdef WIN32
/* In Win32, vsnprintf is available as the "non-ANSI" _vsnprintf. */
# if !defined(vsnprintf) && !defined(__TURBOC__)
# define vsnprintf _vsnprintf
# endif
# endif
# ifdef __TURBOC__
# define NO_vsnprintf
# endif
#endif
#ifdef HAVE_STRERROR
extern char *strerror OF((int));
# define zstrerror(errnum) strerror(errnum)