zlib 1.2.0.7

ChangeLog

@@ -1,5 +1,102 @@
 
                 ChangeLog file for zlib
+
+Changes in 1.2.0.7 (21 September 2003)
+- Correct some debug formats in contrib/infback9
+- Cast a type in a debug statement in trees.c
+- Change search and replace delimiter in configure from % to # [Beebe]
+- Update contrib/untgz to 0.2 with various fixes [Truta]
+- Add build support for Amiga [Nikl]
+- Remove some directories in old that have been updated to 1.2
+- Add dylib building for Mac OS X in configure and Makefile.in
+- Remove old distribution stuff from Makefile
+- Update README to point for DLL_FAQ.txt, and add comment on Mac OS X
+- Update links in README
+
+Changes in 1.2.0.6 (13 September 2003)
+- Minor FAQ updates
+- Update contrib/minizip to 1.00 [Vollant]
+- Remove test of gz functions in example.c when GZ_COMPRESS defined [Truta]
+- Update POSTINC comment for 68060 [Nikl]
+- Add contrib/infback9 with deflate64 decoding (unsupported)
+- For MVS define NO_vsnprintf and undefine FAR [van Burik]
+- Add pragma for fdopen on MVS [van Burik]
+
+Changes in 1.2.0.5 (8 September 2003)
+- Add OF to inflateBackEnd() declaration in zlib.h
+- Remember start when using gzdopen in the middle of a file
+- Use internal off_t counters in gz* functions to properly handle seeks
+- Perform more rigorous check for distance-too-far in inffast.c
+- Add Z_BLOCK flush option to return from inflate at block boundary
+- Set strm->data_type on return from inflate
+    - Indicate bits unused, if at block boundary, and if in last block
+- Replace size_t with ptrdiff_t in crc32.c, and check for correct size
+- Add condition so old NO_DEFLATE define still works for compatibility
+- FAQ update regarding the Windows DLL [Truta]
+- INDEX update: add qnx entry, remove aix entry [Truta]
+- Install zlib.3 into mandir [Wilson]
+- Move contrib/zlib_dll_FAQ.txt to win32/DLL_FAQ.txt; update [Truta]
+- Adapt the zlib interface to the new DLL convention guidelines [Truta]
+- Introduce ZLIB_WINAPI macro to allow the export of functions using
+  the WINAPI calling convention, for Visual Basic [Vollant, Truta]
+- Update msdos and win32 scripts and makefiles [Truta]
+- Export symbols by name, not by ordinal, in win32/zlib.def [Truta]
+- Add contrib/ada [Anisimkov]
+- Move asm files from contrib/vstudio/vc70_32 to contrib/asm386 [Truta]
+- Rename contrib/asm386 to contrib/masmx86 [Truta, Vollant]
+- Add contrib/masm686 [Truta]
+- Fix offsets in contrib/inflate86 and contrib/masmx86/inffas32.asm
+  [Truta, Vollant]
+- Update contrib/delphi; rename to contrib/pascal; add example [Truta]
+- Remove contrib/delphi2; add a new contrib/delphi [Truta]
+- Avoid inclusion of the nonstandard <memory.h> in contrib/iostream,
+  and fix some method prototypes [Truta]
+- Fix the ZCR_SEED2 constant to avoid warnings in contrib/minizip
+  [Truta]
+- Avoid the use of backslash (\) in contrib/minizip [Vollant]
+- Fix file time handling in contrib/untgz; update makefiles [Truta]
+- Update contrib/vstudio/vc70_32 to comply with the new DLL guidelines
+  [Vollant]
+- Remove contrib/vstudio/vc15_16 [Vollant]
+- Rename contrib/vstudio/vc70_32 to contrib/vstudio/vc7 [Truta]
+- Update README.contrib [Truta]
+- Invert the assignment order of match_head and s->prev[...] in
+  INSERT_STRING [Truta]
+- Compare TOO_FAR with 32767 instead of 32768, to avoid 16-bit warnings
+  [Truta]
+- Compare function pointers with 0, not with NULL or Z_NULL [Truta]
+- Fix prototype of syncsearch in inflate.c [Truta]
+- Introduce ASMINF macro to be enabled when using an ASM implementation
+  of inflate_fast [Truta]
+- Change NO_DEFLATE to NO_GZCOMPRESS [Truta]
+- Modify test_gzio in example.c to take a single file name as a
+  parameter [Truta]
+- Exit the example.c program if gzopen fails [Truta]
+- Add type casts around strlen in example.c [Truta]
+- Remove casting to sizeof in minigzip.c; give a proper type
+  to the variable compared with SUFFIX_LEN [Truta]
+- Update definitions of STDC and STDC99 in zconf.h [Truta]
+- Synchronize zconf.h with the new Windows DLL interface [Truta]
+- Use SYS16BIT instead of __32BIT__ to distinguish between
+  16- and 32-bit platforms [Truta]
+- Use far memory allocators in small 16-bit memory models for
+  Turbo C [Truta]
+- Add info about the use of ASMV, ASMINF and ZLIB_WINAPI in
+  zlibCompileFlags [Truta]
+- Cygwin has vsnprintf [Wilson]
+- In Windows16, OS_CODE is 0, as in MSDOS [Truta]
+- In Cygwin, OS_CODE is 3 (Unix), not 11 (Windows32) [Wilson]
+
+Changes in 1.2.0.4 (10 August 2003)
+- Minor FAQ updates
+- Be more strict when checking inflateInit2's windowBits parameter
+- Change NO_GUNZIP compile option to NO_GZIP to cover deflate as well
+- Add gzip wrapper option to deflateInit2 using windowBits
+- Add updated QNX rule in configure and qnx directory [Bonnefoy]
+- Make inflate distance-too-far checks more rigorous
+- Clean up FAR usage in inflate
+- Add casting to sizeof() in gzio.c and minigzip.c
+
 Changes in 1.2.0.3 (19 July 2003)
 - Fix silly error in gzungetc() implementation [Vollant]
 - Update contrib/minizip and contrib/vstudio [Vollant]

FAQ

@@ -13,9 +13,10 @@ The lastest zlib FAQ is at http://www.gzip.org/zlib/zlib_faq.html
 
  2. Where can I get a Windows DLL version?
 
-    The zlib sources can be compiled without change to produce a DLL. If you
+    The zlib sources can be compiled without change to produce a DLL.
-    want a precompiled DLL, see http://www.winimage.com/zLibDll/ . Questions
+    See the file win32/DLL_FAQ.txt in the zlib distribution.
-    about the zlib DLL should be sent to Gilles Vollant (info@winimage.com).
+    Pointers to the precompiled DLL are found in the zlib web site at
+    http://www.zlib.org.
 
  3. Where can I get a Visual Basic interface to zlib?
 
@@ -72,8 +73,7 @@ The lastest zlib FAQ is at http://www.gzip.org/zlib/zlib_faq.html
 
 10. I need a Delphi interface to zlib.
 
-    See the directories contrib/delphi and contrib/delphi2 in the zlib
+    See the contrib/delphi directory in the zlib distribution.
-    distribution.
 
 11. Can zlib handle .zip archives?
 
@@ -122,8 +122,16 @@ The lastest zlib FAQ is at http://www.gzip.org/zlib/zlib_faq.html
 
 18. Well that's nice, but how do I make a gzip file in memory?
 
-    Read RFC 1952 for the gzip header and trailer format, and roll your own
+    You can request that deflate write the gzip format instead of the zlib
-    gzip formatted data using raw deflate and crc32().
+    format using deflateInit2(). You can also request that inflate decode
+    the gzip format using inflateInit2(). Read zlib.h for more details.
+
+    Note that you cannot specify special gzip header contents (e.g. a file
+    name or modification date), nor will inflate tell you what was in the
+    gzip header. If you need to customize the header or see what's in it,
+    you can use the raw deflate and inflate operations and the crc32()
+    function and roll your own gzip encoding and decoding. Read the gzip
+    RFC 1952 for details of the header and trailer format.
 
 19. Is zlib thread-safe?
 
@@ -253,7 +261,7 @@ The lastest zlib FAQ is at http://www.gzip.org/zlib/zlib_faq.html
 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
+    as part of the Java SDK in the java.util.zip package. If you really want
     a version of zlib written in the Java language, look on the zlib home
     page for links: http://www.zlib.org/
 

INDEX

@@ -8,10 +8,10 @@ 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
 msdos/          makefiles for MSDOS
 old/            makefiles for various architectures and zlib documentation
                 files that have not yet been updated for zlib 1.2.x
+qnx/            makefiles for QNX
 win32/          makefiles for Windows
 
                 zlib public header files (must be kept):

Makefile

@@ -7,6 +7,10 @@
 # The call of configure is optional if you don't have special requirements
 # If you wish to build zlib as a shared library, use: ./configure -s
 
+# To use the asm code, type:
+#    cp contrib/asm?86/match.S ./match.S
+#    make LOC=-DASMV OBJA=match.o
+
 # To install /usr/local/lib/libz.* and /usr/local/include/zlib.h, type:
 #    make install
 # To install in $HOME instead of /usr/local, use:
@@ -24,9 +28,10 @@ LDFLAGS=libz.a
 LDSHARED=$(CC)
 CPP=$(CC) -E
 
-VER=1.2.0.3
 LIBS=libz.a
 SHAREDLIB=libz.so
+SHAREDLIBV=libz.so.1.2.0.7
+SHAREDLIBM=libz.so.1
 
 AR=ar rc
 RANLIB=ranlib
@@ -37,6 +42,8 @@ prefix = /usr/local
 exec_prefix = ${prefix}
 libdir = ${exec_prefix}/lib
 includedir = ${prefix}/include
+mandir = ${prefix}/share/man
+man3dir = ${mandir}/man3
 
 OBJS = adler32.o compress.o crc32.o gzio.o uncompr.o deflate.o trees.o \
        zutil.o inflate.o infback.o inftrees.o inffast.o
@@ -46,19 +53,6 @@ OBJA =
 
 TEST_OBJS = example.o minigzip.o
 
-# Note: this hasn't been updated for zlib 1.2.0
-DISTFILES = README FAQ INDEX ChangeLog configure Make*[a-z0-9] *.[ch] *.mms \
-  algorithm.txt zlib.3 zlib.html \
-  msdos/Make*[a-z0-9] msdos/zlib.def msdos/zlib.rc \
-  nt/Make*[a-z0-9] nt/zlib.dnt amiga/Make*.??? os2/M*.os2 os2/zlib.def \
-  contrib/RE*.contrib contrib/*.txt contrib/asm386/*.asm contrib/asm386/*.c \
-  contrib/asm386/*.bat contrib/asm386/zlibvc.d?? contrib/asm[56]86/*.?86 \
-  contrib/asm[56]86/*.S contrib/iostream/*.cpp \
-  contrib/iostream/*.h  contrib/iostream2/*.h contrib/iostream2/*.cpp \
-  contrib/untgz/Makefile contrib/untgz/*.c contrib/untgz/*.w32 \
-  contrib/minizip/[CM]*[pe] contrib/minizip/*.[ch] contrib/minizip/*.[td]?? \
-  contrib/delphi*/*.???
-
 all: example minigzip
 
 check: test
@@ -82,11 +76,11 @@ match.o: match.S
 	mv _match.o match.o
 	rm -f _match.s
 
-$(SHAREDLIB).$(VER): $(OBJS)
+$(SHAREDLIBV): $(OBJS)
 	$(LDSHARED) -o $@ $(OBJS)
-	rm -f $(SHAREDLIB) $(SHAREDLIB).1
+	rm -f $(SHAREDLIB) $(SHAREDLIBM)
 	ln -s $@ $(SHAREDLIB)
-	ln -s $@ $(SHAREDLIB).1
+	ln -s $@ $(SHAREDLIBM)
 
 example: example.o $(LIBS)
 	$(CC) $(CFLAGS) -o $@ example.o $(LDFLAGS)
@@ -98,62 +92,41 @@ install: $(LIBS)
 	-@if [ ! -d $(exec_prefix) ]; then mkdir $(exec_prefix); fi
 	-@if [ ! -d $(includedir)  ]; then mkdir $(includedir); fi
 	-@if [ ! -d $(libdir)      ]; then mkdir $(libdir); fi
+	-@if [ ! -d $(man3dir)     ]; then mkdir $(man3dir); fi
 	cp zlib.h zconf.h $(includedir)
 	chmod 644 $(includedir)/zlib.h $(includedir)/zconf.h
 	cp $(LIBS) $(libdir)
 	cd $(libdir); chmod 755 $(LIBS)
 	-@(cd $(libdir); $(RANLIB) libz.a || true) >/dev/null 2>&1
-	cd $(libdir); if test -f $(SHAREDLIB).$(VER); then \
+	cd $(libdir); if test -f $(SHAREDLIBV); then \
-	  rm -f $(SHAREDLIB) $(SHAREDLIB).1; \
+	  rm -f $(SHAREDLIB) $(SHAREDLIBM); \
-	  ln -s $(SHAREDLIB).$(VER) $(SHAREDLIB); \
+	  ln -s $(SHAREDLIBV) $(SHAREDLIB); \
-	  ln -s $(SHAREDLIB).$(VER) $(SHAREDLIB).1; \
+	  ln -s $(SHAREDLIBV) $(SHAREDLIBM); \
 	  (ldconfig || true)  >/dev/null 2>&1; \
 	fi
+	cp zlib.3 $(man3dir)
+	chmod 644 $(man3dir)/zlib.3
 # The ranlib in install is needed on NeXTSTEP which checks file times
 # ldconfig is for Linux
 
 uninstall:
 	cd $(includedir); \
-	v=$(VER); \
-	if test -f zlib.h; then \
-	  v=`sed -n '/VERSION "/s/.*"\(.*\)".*/\1/p' < zlib.h`; \
-          rm -f zlib.h zconf.h; \
-	fi; \
 	cd $(libdir); rm -f libz.a; \
-	if test -f $(SHAREDLIB).$$v; then \
+	if test -f $(SHAREDLIBV); then \
-	  rm -f $(SHAREDLIB).$$v $(SHAREDLIB) $(SHAREDLIB).1; \
+	  rm -f $(SHAREDLIBV) $(SHAREDLIB) $(SHAREDLIBM); \
 	fi
+	cd $(man3dir); rm -f zlib.3
 
 mostlyclean: clean
 clean:
-	rm -f *.o *~ example minigzip libz.a libz.so* foo.gz so_locations \
+	rm -f *.o *~ example minigzip libz.* foo.gz so_locations \
-	   _match.s maketree
+	   _match.s maketree contrib/infback9/*.o
 
 maintainer-clean: distclean
 distclean: clean
 	cp -p Makefile.in Makefile
 	cp -p zconf.in.h zconf.h
-
+	rm -f .DS_Store
-zip:
-	mv Makefile Makefile~; cp -p Makefile.in Makefile
-	rm -f test.c ztest*.c contrib/minizip/test.zip
-	v=`sed -n -e 's/\.//g' -e '/VERSION "/s/.*"\(.*\)".*/\1/p' < zlib.h`;\
-	zip -ul9 zlib$$v $(DISTFILES)
-	mv Makefile~ Makefile
-
-dist:
-	echo Warning: this hasn't been updated for zlib 1.2.0 -- don't use
-	mv Makefile Makefile~; cp -p Makefile.in Makefile
-	rm -f test.c ztest*.c contrib/minizip/test.zip
-	d=zlib-`sed -n '/VERSION "/s/.*"\(.*\)".*/\1/p' < zlib.h`;\
-	rm -f $$d.tar.gz; \
-	if test ! -d ../$$d; then rm -f ../$$d; ln -s `pwd` ../$$d; fi; \
-	files=""; \
-	for f in $(DISTFILES); do files="$$files $$d/$$f"; done; \
-	cd ..; \
-	GZIP=-9 $(TAR) chofz $$d/$$d.tar.gz $$files; \
-	if test ! -d $$d; then rm -f $$d; fi
-	mv Makefile~ Makefile
 
 tags:
 	etags *.[ch]

Makefile.in

@@ -7,6 +7,10 @@
 # The call of configure is optional if you don't have special requirements
 # If you wish to build zlib as a shared library, use: ./configure -s
 
+# To use the asm code, type:
+#    cp contrib/asm?86/match.S ./match.S
+#    make LOC=-DASMV OBJA=match.o
+
 # To install /usr/local/lib/libz.* and /usr/local/include/zlib.h, type:
 #    make install
 # To install in $HOME instead of /usr/local, use:
@@ -24,9 +28,10 @@ LDFLAGS=libz.a
 LDSHARED=$(CC)
 CPP=$(CC) -E
 
-VER=1.2.0.3
 LIBS=libz.a
 SHAREDLIB=libz.so
+SHAREDLIBV=libz.so.1.2.0.7
+SHAREDLIBM=libz.so.1
 
 AR=ar rc
 RANLIB=ranlib
@@ -37,6 +42,8 @@ prefix = /usr/local
 exec_prefix = ${prefix}
 libdir = ${exec_prefix}/lib
 includedir = ${prefix}/include
+mandir = ${prefix}/share/man
+man3dir = ${mandir}/man3
 
 OBJS = adler32.o compress.o crc32.o gzio.o uncompr.o deflate.o trees.o \
        zutil.o inflate.o infback.o inftrees.o inffast.o
@@ -46,19 +53,6 @@ OBJA =
 
 TEST_OBJS = example.o minigzip.o
 
-# Note: this hasn't been updated for zlib 1.2.0
-DISTFILES = README FAQ INDEX ChangeLog configure Make*[a-z0-9] *.[ch] *.mms \
-  algorithm.txt zlib.3 zlib.html \
-  msdos/Make*[a-z0-9] msdos/zlib.def msdos/zlib.rc \
-  nt/Make*[a-z0-9] nt/zlib.dnt amiga/Make*.??? os2/M*.os2 os2/zlib.def \
-  contrib/RE*.contrib contrib/*.txt contrib/asm386/*.asm contrib/asm386/*.c \
-  contrib/asm386/*.bat contrib/asm386/zlibvc.d?? contrib/asm[56]86/*.?86 \
-  contrib/asm[56]86/*.S contrib/iostream/*.cpp \
-  contrib/iostream/*.h  contrib/iostream2/*.h contrib/iostream2/*.cpp \
-  contrib/untgz/Makefile contrib/untgz/*.c contrib/untgz/*.w32 \
-  contrib/minizip/[CM]*[pe] contrib/minizip/*.[ch] contrib/minizip/*.[td]?? \
-  contrib/delphi*/*.???
-
 all: example minigzip
 
 check: test
@@ -82,11 +76,11 @@ match.o: match.S
 	mv _match.o match.o
 	rm -f _match.s
 
-$(SHAREDLIB).$(VER): $(OBJS)
+$(SHAREDLIBV): $(OBJS)
 	$(LDSHARED) -o $@ $(OBJS)
-	rm -f $(SHAREDLIB) $(SHAREDLIB).1
+	rm -f $(SHAREDLIB) $(SHAREDLIBM)
 	ln -s $@ $(SHAREDLIB)
-	ln -s $@ $(SHAREDLIB).1
+	ln -s $@ $(SHAREDLIBM)
 
 example: example.o $(LIBS)
 	$(CC) $(CFLAGS) -o $@ example.o $(LDFLAGS)
@@ -98,62 +92,41 @@ install: $(LIBS)
 	-@if [ ! -d $(exec_prefix) ]; then mkdir $(exec_prefix); fi
 	-@if [ ! -d $(includedir)  ]; then mkdir $(includedir); fi
 	-@if [ ! -d $(libdir)      ]; then mkdir $(libdir); fi
+	-@if [ ! -d $(man3dir)     ]; then mkdir $(man3dir); fi
 	cp zlib.h zconf.h $(includedir)
 	chmod 644 $(includedir)/zlib.h $(includedir)/zconf.h
 	cp $(LIBS) $(libdir)
 	cd $(libdir); chmod 755 $(LIBS)
 	-@(cd $(libdir); $(RANLIB) libz.a || true) >/dev/null 2>&1
-	cd $(libdir); if test -f $(SHAREDLIB).$(VER); then \
+	cd $(libdir); if test -f $(SHAREDLIBV); then \
-	  rm -f $(SHAREDLIB) $(SHAREDLIB).1; \
+	  rm -f $(SHAREDLIB) $(SHAREDLIBM); \
-	  ln -s $(SHAREDLIB).$(VER) $(SHAREDLIB); \
+	  ln -s $(SHAREDLIBV) $(SHAREDLIB); \
-	  ln -s $(SHAREDLIB).$(VER) $(SHAREDLIB).1; \
+	  ln -s $(SHAREDLIBV) $(SHAREDLIBM); \
 	  (ldconfig || true)  >/dev/null 2>&1; \
 	fi
+	cp zlib.3 $(man3dir)
+	chmod 644 $(man3dir)/zlib.3
 # The ranlib in install is needed on NeXTSTEP which checks file times
 # ldconfig is for Linux
 
 uninstall:
 	cd $(includedir); \
-	v=$(VER); \
-	if test -f zlib.h; then \
-	  v=`sed -n '/VERSION "/s/.*"\(.*\)".*/\1/p' < zlib.h`; \
-          rm -f zlib.h zconf.h; \
-	fi; \
 	cd $(libdir); rm -f libz.a; \
-	if test -f $(SHAREDLIB).$$v; then \
+	if test -f $(SHAREDLIBV); then \
-	  rm -f $(SHAREDLIB).$$v $(SHAREDLIB) $(SHAREDLIB).1; \
+	  rm -f $(SHAREDLIBV) $(SHAREDLIB) $(SHAREDLIBM); \
 	fi
+	cd $(man3dir); rm -f zlib.3
 
 mostlyclean: clean
 clean:
-	rm -f *.o *~ example minigzip libz.a libz.so* foo.gz so_locations \
+	rm -f *.o *~ example minigzip libz.* foo.gz so_locations \
-	   _match.s maketree
+	   _match.s maketree contrib/infback9/*.o
 
 maintainer-clean: distclean
 distclean: clean
 	cp -p Makefile.in Makefile
 	cp -p zconf.in.h zconf.h
-
+	rm -f .DS_Store
-zip:
-	mv Makefile Makefile~; cp -p Makefile.in Makefile
-	rm -f test.c ztest*.c contrib/minizip/test.zip
-	v=`sed -n -e 's/\.//g' -e '/VERSION "/s/.*"\(.*\)".*/\1/p' < zlib.h`;\
-	zip -ul9 zlib$$v $(DISTFILES)
-	mv Makefile~ Makefile
-
-dist:
-	echo Warning: this hasn't been updated for zlib 1.2.0 -- don't use
-	mv Makefile Makefile~; cp -p Makefile.in Makefile
-	rm -f test.c ztest*.c contrib/minizip/test.zip
-	d=zlib-`sed -n '/VERSION "/s/.*"\(.*\)".*/\1/p' < zlib.h`;\
-	rm -f $$d.tar.gz; \
-	if test ! -d ../$$d; then rm -f ../$$d; ln -s `pwd` ../$$d; fi; \
-	files=""; \
-	for f in $(DISTFILES); do files="$$files $$d/$$f"; done; \
-	cd ..; \
-	GZIP=-9 $(TAR) chofz $$d/$$d.tar.gz $$files; \
-	if test ! -d $$d; then rm -f $$d; fi
-	mv Makefile~ Makefile
 
 tags:
 	etags *.[ch]

README

@@ -1,6 +1,6 @@
 ZLIB DATA COMPRESSION LIBRARY
 
-zlib 1.2.0.3 is a general purpose data compression library.  All the code is
+zlib 1.2.0.7 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)
@@ -8,7 +8,7 @@ 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
+(volunteer to write man pages welcome, contact zlib@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
@@ -34,12 +34,12 @@ 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 1.2.0.3 are documented in the file ChangeLog.
+The changes made in version 1.2.0.7 are documented in the file ChangeLog.
 
 Unsupported third party contributions are provided in directory "contrib".
 
 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
+http://java.sun.com/j2se/1.4.2/docs/api/java/util/zip/package-summary.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
@@ -51,26 +51,16 @@ 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
+availlable at http://www.oche.de/~akupries/soft/trf/trf_zip.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
+of zlib by Gilles Vollant <info@winimage.com>, is available in the
-http://www.winimage.com/zLibDll/unzip.html and also in the contrib/minizip
+contrib/minizip directory of zlib.
-directory of zlib.
 
 
 Notes for some targets:
 
-- To build a Windows DLL version, include in a DLL project zlib.def, zlib.rc
+- For Windows DLL versions, please see win32/DLL_FAQ.txt
-  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
-  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
@@ -90,8 +80,11 @@ Notes for some targets:
 - 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
+- For PalmOs, see http://palmzlib.sourceforge.net/
-  Harald Myrvang <perm@stud.cs.uit.no>
+
+- When building a shared, i.e. dynamic library on Mac OS X, the library must be
+  installed before testing (do "make install" before "make test"), since the
+  library location is specified in the library.
 
 
 Acknowledgments:

amiga/Makefile.pup

@@ -0,0 +1,66 @@
+# Amiga powerUP (TM) Makefile
+# makefile for libpng and SAS C V6.58/7.00 PPC compiler
+# Copyright (C) 1998 by Andreas R. Kleinert
+
+LIBNAME	= libzip.a
+
+CC	= scppc
+CFLAGS	= NOSTKCHK NOSINT OPTIMIZE OPTGO OPTPEEP OPTINLOCAL OPTINL \
+	  OPTLOOP OPTRDEP=8 OPTDEP=8 OPTCOMP=8 NOVER
+AR	= ppc-amigaos-ar cr
+RANLIB	= ppc-amigaos-ranlib
+LD	= ppc-amigaos-ld -r
+LDFLAGS	= -o
+LDLIBS	= LIB:scppc.a LIB:end.o
+RM	= delete quiet
+
+OBJS = adler32.o compress.o crc32.o gzio.o uncompr.o deflate.o trees.o \
+       zutil.o inflate.o infback.o inftrees.o inffast.o
+
+TEST_OBJS = example.o minigzip.o
+
+all: example minigzip
+
+check: test
+test: all
+	example
+	echo hello world | minigzip | minigzip -d
+
+$(LIBNAME): $(OBJS)
+	$(AR) $@ $(OBJS)
+	-$(RANLIB) $@
+
+example: example.o $(LIBNAME)
+	$(LD) $(LDFLAGS) $@ LIB:c_ppc.o $@.o $(LIBNAME) $(LDLIBS)
+
+minigzip: minigzip.o $(LIBNAME)
+	$(LD) $(LDFLAGS) $@ LIB:c_ppc.o $@.o $(LIBNAME) $(LDLIBS)
+
+mostlyclean: clean
+clean:
+	$(RM) *.o example minigzip $(LIBNAME) foo.gz
+
+zip:
+	zip -ul9 zlib README ChangeLog Makefile Make????.??? Makefile.?? \
+	  descrip.mms *.[ch]
+
+tgz:
+	cd ..; tar cfz zlib/zlib.tgz zlib/README zlib/ChangeLog zlib/Makefile \
+	  zlib/Make????.??? zlib/Makefile.?? zlib/descrip.mms zlib/*.[ch]
+
+# DO NOT DELETE THIS LINE -- make depend depends on it.
+
+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

amiga/Makefile.sas

@@ -10,22 +10,24 @@ CFLAGS=OPT
 LDFLAGS=LIB z.lib
 
 SCOPTIONS=OPTSCHED OPTINLINE OPTALIAS OPTTIME OPTINLOCAL STRMERGE \
-       NOICONS PARMS=BOTH NOSTACKCHECK UTILLIB NOVERSION ERRORREXX 
+       NOICONS PARMS=BOTH NOSTACKCHECK UTILLIB NOVERSION ERRORREXX \
+       DEF=POSTINC
 
 OBJS = adler32.o compress.o crc32.o gzio.o uncompr.o deflate.o trees.o \
-       zutil.o inflate.o infblock.o inftrees.o infcodes.o infutil.o inffast.o
+       zutil.o inflate.o infback.o inftrees.o inffast.o
 
 TEST_OBJS = example.o minigzip.o
 
 all: SCOPTIONS example minigzip
 
+check: test
 test: all
-	`cd`/example
+	example
 	echo hello world | minigzip | minigzip -d 
 
 install: z.lib
-	copy zlib.h zconf.h INCLUDE: clone
+	copy clone zlib.h zconf.h INCLUDE:
-	copy z.lib LIB: clone
+	copy clone z.lib LIB:
 
 z.lib: $(OBJS)
 	oml z.lib r $(OBJS)
@@ -36,29 +38,28 @@ example: example.o z.lib
 minigzip: minigzip.o z.lib
 	$(CC) $(CFLAGS) LINK TO $@ minigzip.o $(LDFLAGS)
 
+mostlyclean: clean
 clean:
-	-delete force quiet *.o example minigzip z.lib foo.gz *.lnk SCOPTIONS
+	-delete force quiet example minigzip *.o z.lib foo.gz *.lnk SCOPTIONS
 
-SCOPTIONS: Smakefile
+SCOPTIONS: Makefile.sas
 	copy to $@ <from <
 $(SCOPTIONS)
 <
 
 # DO NOT DELETE THIS LINE -- make depend depends on it.
 
-adler32.o: zutil.h zlib.h zconf.h
+adler32.o: zlib.h zconf.h
 compress.o: zlib.h zconf.h
-crc32.o: zutil.h 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
-infblock.o: zutil.h zlib.h zconf.h infblock.h inftrees.h infcodes.h infutil.h
+inffast.o: zutil.h zlib.h zconf.h inftrees.h inflate.h inffast.h
-infcodes.o: zutil.h zlib.h zconf.h inftrees.h infutil.h infcodes.h inffast.h
+inflate.o: zutil.h zlib.h zconf.h inftrees.h inflate.h inffast.h
-inffast.o: zutil.h zlib.h zconf.h inftrees.h infutil.h inffast.h
+infback.o: zutil.h zlib.h zconf.h inftrees.h inflate.h inffast.h
-inflate.o: zutil.h zlib.h zconf.h infblock.h
 inftrees.o: zutil.h zlib.h zconf.h inftrees.h
-infutil.o: zutil.h zlib.h zconf.h inftrees.h infutil.h
 minigzip.o: zlib.h zconf.h
-trees.o: deflate.h zutil.h 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

configure

@@ -20,14 +20,16 @@
 
 LIBS=libz.a
 LDFLAGS="-L. ${LIBS}"
-SHAREDLIB=libz.so
 VER=`sed -n -e '/VERSION "/s/.*"\(.*\)".*/\1/p' < zlib.h`
+VER2=`sed -n -e '/VERSION "/s/.*"\([0-9]*\\.[0-9]*\)\\..*/\1/p' < zlib.h`
+VER1=`sed -n -e '/VERSION "/s/.*"\([0-9]*\)\\..*/\1/p' < zlib.h`
 AR=${AR-"ar rc"}
 RANLIB=${RANLIB-"ranlib"}
 prefix=${prefix-/usr/local}
 exec_prefix=${exec_prefix-'${prefix}'}
 libdir=${libdir-'${exec_prefix}/lib'}
 includedir=${includedir-'${prefix}/include'}
+mandir=${mandir-'${prefix}/share/man'}
 shared_ext='.so'
 shared=0
 gcc=0
@@ -54,10 +56,6 @@ case "$1" in
     esac
 done
 
-if [ $shared -eq 1 ]; then
-  LDFLAGS="-L. ${SHAREDLIB}"
-fi
-
 test=ztest$$
 cat > $test.c <<EOF
 extern int getchar();
@@ -78,9 +76,19 @@ if test "$gcc" -eq 1 && ($cc -c $cflags $test.c) 2>/dev/null; then
   CFLAGS="$cflags"
   case `(uname -s || echo unknown) 2>/dev/null` in
   Linux | linux) LDSHARED=${LDSHARED-"$cc -shared -Wl,-soname,libz.so.1"};;
+  QNX*)  # This is for QNX6. I suppose that the QNX rule below is for QNX2,QNX4
+         # (alain.bonnefoy@icbt.com)
+                 LDSHARED=${LDSHARED-"$cc -shared -Wl,-hlibz.so.1"};;
   HP-UX*)        LDSHARED=${LDSHARED-"$cc -shared $SFLAGS"}
                  shared_ext='.sl'
                  SHAREDLIB='libz.sl';;
+  Darwin*)   shared_ext='.dylib'
+             SHAREDLIB=libz$shared_ext
+             SHAREDLIBV=libz.$VER$shared_ext
+             SHAREDLIBM=libz.$VER1$shared_ext
+             LDSHARED=${LDSHARED-"$cc -dynamiclib -install_name /usr/lib/$SHAREDLIBV -compatibility_version $VER2 -current_version $VER"}
+             libdir='/usr/lib'
+             includedir='/usr/include';;
   *)             LDSHARED=${LDSHARED-"$cc -shared"};;
   esac
 else
@@ -98,7 +106,7 @@ else
              LDSHARED=${LDSHARED-"cc -shared"};;
   OSF1\ V4*) SFLAGS=${CFLAGS-"-O -std1"}
              CFLAGS=${CFLAGS-"-O -std1"}
-	     LDSHARED=${LDSHARED-"cc -shared  -Wl,-soname,$SHAREDLIB -Wl,-msym -Wl,-rpath,$(libdir) -Wl,-set_version,${VER}:1.0"};;
+             LDSHARED=${LDSHARED-"cc -shared  -Wl,-soname,libz.so -Wl,-msym -Wl,-rpath,$(libdir) -Wl,-set_version,${VER}:1.0"};;
   OSF1*)     SFLAGS=${CFLAGS-"-O -std1"}
              CFLAGS=${CFLAGS-"-O -std1"}
              LDSHARED=${LDSHARED-"cc -shared"};;
@@ -139,25 +147,31 @@ else
   esac
 fi
 
+SHAREDLIB=${SHAREDLIB-"libz$shared_ext"}
+SHAREDLIBV=${SHAREDLIBV-"libz$shared_ext.$VER"}
+SHAREDLIBM=${SHAREDLIBM-"libz$shared_ext.$VER1"}
+
 if test $shared -eq 1; then
   echo Checking for shared library support...
   # we must test in two steps (cc then ld), required at least on SunOS 4.x
   if test "`($CC -c $SFLAGS $test.c) 2>&1`" = "" &&
      test "`($LDSHARED -o $test$shared_ext $test.o) 2>&1`" = ""; then
     CFLAGS="$SFLAGS"
-    LIBS="$SHAREDLIB.$VER"
+    LIBS="$SHAREDLIBV"
-    echo Building shared library $SHAREDLIB.$VER with $CC.
+    echo Building shared library $SHAREDLIBV with $CC.
   elif test -z "$old_cc" -a -z "$old_cflags"; then
-    echo No shared library suppport.
+    echo No shared library support.
     shared=0;
   else
-    echo 'No shared library suppport; try without defining CC and CFLAGS'
+    echo 'No shared library support; try without defining CC and CFLAGS'
     shared=0;
   fi
 fi
 if test $shared -eq 0; then
   LDSHARED="$CC"
   echo Building static library $LIBS version $VER with $CC.
+else
+  LDFLAGS="-L. ${SHAREDLIBV}"
 fi
 
 cat > $test.c <<EOF
@@ -418,18 +432,20 @@ rm -f $test.[co] $test$shared_ext
 
 # udpate Makefile
 sed < Makefile.in "
-/^CC *=/s%=.*%=$CC%
+/^CC *=/s#=.*#=$CC#
-/^CFLAGS *=/s%=.*%=$CFLAGS%
+/^CFLAGS *=/s#=.*#=$CFLAGS#
-/^CPP *=/s%=.*%=$CPP%
+/^CPP *=/s#=.*#=$CPP#
-/^LDSHARED *=/s%=.*%=$LDSHARED%
+/^LDSHARED *=/s#=.*#=$LDSHARED#
-/^LIBS *=/s%=.*%=$LIBS%
+/^LIBS *=/s#=.*#=$LIBS#
-/^SHAREDLIB *=/s%=.*%=$SHAREDLIB%
+/^SHAREDLIB *=/s#=.*#=$SHAREDLIB#
-/^AR *=/s%=.*%=$AR%
+/^SHAREDLIBV *=/s#=.*#=$SHAREDLIBV#
-/^RANLIB *=/s%=.*%=$RANLIB%
+/^SHAREDLIBM *=/s#=.*#=$SHAREDLIBM#
-/^VER *=/s%=.*%=$VER%
+/^AR *=/s#=.*#=$AR#
-/^prefix *=/s%=.*%=$prefix%
+/^RANLIB *=/s#=.*#=$RANLIB#
-/^exec_prefix *=/s%=.*%=$exec_prefix%
+/^prefix *=/s#=.*#=$prefix#
-/^libdir *=/s%=.*%=$libdir%
+/^exec_prefix *=/s#=.*#=$exec_prefix#
-/^includedir *=/s%=.*%=$includedir%
+/^libdir *=/s#=.*#=$libdir#
-/^LDFLAGS *=/s%=.*%=$LDFLAGS%
+/^includedir *=/s#=.*#=$includedir#
+/^mandir *=/s#=.*#=$mandir#
+/^LDFLAGS *=/s#=.*#=$LDFLAGS#
 " > Makefile

contrib/README.contrib

@@ -4,35 +4,55 @@ Use at your own risk. Please contact the authors of the contributions
 for help about these, not the zlib authors. Thanks.
 
 
-asm386/     by Gilles Vollant <info@winimage.com>
+ada/        by Dmitriy Anisimkov <anisimkov@yahoo.com>
-	386 asm code replacing longest_match(), for Visual C++ 4.2 and ML 6.11c
+	Support for Ada
+	See http://zlib-ada.sourceforge.net/
 
 asm586/ and asm686/ by Brian Raiter <breadbox@muppetlabs.com>
-        asm code for Pentium and Pentium Pro
+	asm code for Pentium and PPro/PII, using the AT&T (GNU as) syntax
 	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 (DCL)
 
-delphi/     by Bob Dellaca <bobdl@xtra.co.nz>
+delphi/     by Cosmin Truta <cosmint@cs.ubbcluj.ro>
-	Support for Delphi
+	Support for Delphi and C++ Builder
 
-delphi2/    by Davide Moretti <dave@rimini.com>
+infback9/   by Mark Adler <madler@alumni.caltech.edu>
-        Another support for C++Builder and Delphi
+        Unsupported diffs to infback to decode the deflate64 format
 
 inflate86/  by Chris Anderson <christop@charm.net>
 	Tuned x86 gcc asm code to replace inflate_fast()
 
-minizip/    by Gilles Vollant <info@winimage.com>
-	Mini zip and unzip based on zlib
-        See http://www.winimage.com/zLibDll/unzip.html
-
 iostream/   by Kevin Ruland <kevin@rodin.wustl.edu>
 	A C++ I/O streams interface to the zlib gz* functions
 
 iostream2/  by Tyge L<>vset <Tyge.Lovset@cmr.no>
 	Another C++ I/O streams interface
 
+iostream3/  by Ludwig Schwardt <schwardt@sun.ac.za>
+            and Kevin Ruland <kevin@rodin.wustl.edu>
+	Yet another C++ I/O streams interface
+
+masm686/    by Dan Higdon <hdan@kinesoft.com>
+            and Chuck Walbourn <chuckw@kinesoft.com>
+	asm code for Pentium Pro/PII, using the MASM syntax
+
+masmx86/    by Gilles Vollant <info@winimage.com>
+	x86 asm code to replace longest_match() and inflate_fast(),
+	for Visual C++ and MASM
+
+minizip/    by Gilles Vollant <info@winimage.com>
+	Mini zip and unzip based on zlib
+	See http://www.winimage.com/zLibDll/unzip.html
+
+pascal/     by Bob Dellaca <bobdl@xtra.co.nz> et al.
+	Support for Pascal
+
+puff/       by Mark Adler <madler@alumni.caltech.edu>
+	Small, low memory usage inflate.  Also serves to provide an
+	unambiguous description of the deflate format.
+
 testzlib/   by Gilles Vollant <info@winimage.com>
 	Example of the use of zlib
 
@@ -40,8 +60,7 @@ 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.
+	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
+	Building zlib with Visual Studio .NET
-	Includes x86 inffast.asm for MASM

contrib/ada/mtest.adb

@@ -0,0 +1,153 @@
+----------------------------------------------------------------
+--  ZLib for Ada thick binding.                               --
+--                                                            --
+--  Copyright (C) 2002-2003 Dmitriy Anisimkov                 --
+--                                                            --
+--  Open source license information is in the zlib.ads file.  --
+----------------------------------------------------------------
+--  Continuous test for ZLib multithreading. If the test is fail
+--  Wou should provide thread safe allocation routines for the Z_Stream.
+--
+--  $Id: mtest.adb,v 1.2 2003/08/12 12:11:05 vagul Exp $
+
+with ZLib;
+with Ada.Streams;
+with Ada.Numerics.Discrete_Random;
+with Ada.Text_IO;
+with Ada.Exceptions;
+with Ada.Task_Identification;
+
+procedure MTest is
+   use Ada.Streams;
+   use ZLib;
+
+   Stop : Boolean := False;
+
+   pragma Atomic (Stop);
+
+   subtype Visible_Symbols is Stream_Element range 16#20# .. 16#7E#;
+
+   package Random_Elements is
+      new Ada.Numerics.Discrete_Random (Visible_Symbols);
+
+   task type Test_Task;
+
+   task body Test_Task is
+      Buffer : Stream_Element_Array (1 .. 100_000);
+      Gen : Random_Elements.Generator;
+
+      Buffer_First  : Stream_Element_Offset;
+      Compare_First : Stream_Element_Offset;
+
+      Deflate : Filter_Type;
+      Inflate : Filter_Type;
+
+      procedure Further (Item : in Stream_Element_Array);
+
+      procedure Read_Buffer
+        (Item : out Ada.Streams.Stream_Element_Array;
+         Last : out Ada.Streams.Stream_Element_Offset);
+
+      -------------
+      -- Further --
+      -------------
+
+      procedure Further (Item : in Stream_Element_Array) is
+
+         procedure Compare (Item : in Stream_Element_Array);
+
+         -------------
+         -- Compare --
+         -------------
+
+         procedure Compare (Item : in Stream_Element_Array) is
+            Next_First : Stream_Element_Offset := Compare_First + Item'Length;
+         begin
+            if Buffer (Compare_First .. Next_First - 1) /= Item then
+               raise Program_Error;
+            end if;
+
+            Compare_First := Next_First;
+         end Compare;
+
+         procedure Compare_Write is new ZLib.Write (Write => Compare);
+      begin
+         Compare_Write (Inflate, Item, No_Flush);
+      end Further;
+
+      -----------------
+      -- Read_Buffer --
+      -----------------
+
+      procedure Read_Buffer
+        (Item : out Ada.Streams.Stream_Element_Array;
+         Last : out Ada.Streams.Stream_Element_Offset)
+      is
+         Buff_Diff   : Stream_Element_Offset := Buffer'Last - Buffer_First;
+         Next_First : Stream_Element_Offset;
+      begin
+         if Item'Length <= Buff_Diff then
+            Last := Item'Last;
+
+            Next_First := Buffer_First + Item'Length;
+
+            Item := Buffer (Buffer_First .. Next_First - 1);
+
+            Buffer_First := Next_First;
+         else
+            Last := Item'First + Buff_Diff;
+            Item (Item'First .. Last) := Buffer (Buffer_First .. Buffer'Last);
+            Buffer_First := Buffer'Last + 1;
+         end if;
+      end Read_Buffer;
+
+      procedure Translate is new Generic_Translate
+                                   (Data_In  => Read_Buffer,
+                                    Data_Out => Further);
+
+   begin
+      Random_Elements.Reset (Gen);
+
+      Buffer := (others => 20);
+
+      Main : loop
+         for J in Buffer'Range loop
+            Buffer (J) := Random_Elements.Random (Gen);
+
+            Deflate_Init (Deflate);
+            Inflate_Init (Inflate);
+
+            Buffer_First  := Buffer'First;
+            Compare_First := Buffer'First;
+
+            Translate (Deflate);
+
+            if Compare_First /= Buffer'Last + 1 then
+               raise Program_Error;
+            end if;
+
+            Ada.Text_IO.Put_Line
+              (Ada.Task_Identification.Image
+                 (Ada.Task_Identification.Current_Task)
+               & Stream_Element_Offset'Image (J)
+               & ZLib.Count'Image (Total_Out (Deflate)));
+
+            Close (Deflate);
+            Close (Inflate);
+
+            exit Main when Stop;
+         end loop;
+      end loop Main;
+   exception
+      when E : others =>
+         Ada.Text_IO.Put_Line (Ada.Exceptions.Exception_Information (E));
+         Stop := True;
+   end Test_Task;
+
+   Test : array (1 .. 4) of Test_Task;
+
+   pragma Unreferenced (Test);
+
+begin
+   null;
+end MTest;

contrib/ada/read.adb

@@ -0,0 +1,151 @@
+----------------------------------------------------------------
+--  ZLib for Ada thick binding.                               --
+--                                                            --
+--  Copyright (C) 2002-2003 Dmitriy Anisimkov                 --
+--                                                            --
+--  Open source license information is in the zlib.ads file.  --
+----------------------------------------------------------------
+
+--  $Id: read.adb,v 1.7 2003/08/12 12:12:35 vagul Exp $
+
+--  Test/demo program for the generic read interface.
+
+with Ada.Numerics.Discrete_Random;
+with Ada.Streams;
+with Ada.Text_IO;
+
+with ZLib;
+
+procedure Read is
+
+   use Ada.Streams;
+
+   ------------------------------------
+   --  Test configuration parameters --
+   ------------------------------------
+
+   File_Size   : Stream_Element_Offset := 100_000;
+
+   Continuous  : constant Boolean          := False;
+   --  If this constant is True, the test would be repeated again and again,
+   --  with increment File_Size for every iteration.
+
+   Header      : constant ZLib.Header_Type := ZLib.Default;
+   --  Do not use Header other than Default in ZLib versions 1.1.4 and older.
+
+   Init_Random : constant := 8;
+   --  We are using the same random sequence, in case of we catch bug,
+   --  so we would be able to reproduce it.
+
+   -- End --
+
+   Pack_Size : Stream_Element_Offset;
+   Offset    : Stream_Element_Offset;
+
+   Filter     : ZLib.Filter_Type;
+
+   subtype Visible_Symbols
+      is Stream_Element range 16#20# .. 16#7E#;
+
+   package Random_Elements is new
+      Ada.Numerics.Discrete_Random (Visible_Symbols);
+
+   Gen : Random_Elements.Generator;
+   Period  : constant Stream_Element_Offset := 200;
+   --  Period constant variable for random generator not to be very random.
+   --  Bigger period, harder random.
+
+   Read_Buffer : Stream_Element_Array (1 .. 2048);
+   Read_First  : Stream_Element_Offset;
+   Read_Last   : Stream_Element_Offset;
+
+   procedure Reset;
+
+   procedure Read
+     (Item : out Stream_Element_Array;
+      Last : out Stream_Element_Offset);
+   --  this procedure is for generic instantiation of
+   --  ZLib.Read
+   --  reading data from the File_In.
+
+   procedure Read is new ZLib.Read (Read, Read_Buffer, Read_First, Read_Last);
+
+   ----------
+   -- Read --
+   ----------
+
+   procedure Read
+     (Item : out Stream_Element_Array;
+      Last : out Stream_Element_Offset) is
+   begin
+      Last := Stream_Element_Offset'Min
+               (Item'Last,
+                Item'First + File_Size - Offset);
+
+      for J in Item'First .. Last loop
+         if J < Item'First + Period then
+            Item (J) := Random_Elements.Random (Gen);
+         else
+            Item (J) := Item (J - Period);
+         end if;
+
+         Offset   := Offset + 1;
+      end loop;
+   end Read;
+
+   -----------
+   -- Reset --
+   -----------
+
+   procedure Reset is
+   begin
+      Random_Elements.Reset (Gen, Init_Random);
+      Pack_Size := 0;
+      Offset := 1;
+      Read_First := Read_Buffer'Last + 1;
+   end Reset;
+
+begin
+   Ada.Text_IO.Put_Line ("ZLib " & ZLib.Version);
+
+   loop
+      for Level in ZLib.Compression_Level'Range loop
+
+         Ada.Text_IO.Put ("Level ="
+            & ZLib.Compression_Level'Image (Level));
+
+         --  Deflate using generic instantiation.
+
+         ZLib.Deflate_Init
+               (Filter,
+                Level,
+                Header => Header);
+
+         Reset;
+
+         Ada.Text_IO.Put
+           (Stream_Element_Offset'Image (File_Size) & " ->");
+
+         loop
+            declare
+               Buffer : Stream_Element_Array (1 .. 1024);
+               Last   : Stream_Element_Offset;
+            begin
+               Read (Filter, Buffer, Last);
+
+               Pack_Size := Pack_Size + Last - Buffer'First + 1;
+
+               exit when Last < Buffer'Last;
+            end;
+         end loop;
+
+         Ada.Text_IO.Put_Line (Stream_Element_Offset'Image (Pack_Size));
+
+         ZLib.Close (Filter);
+      end loop;
+
+      exit when not Continuous;
+
+      File_Size := File_Size + 1;
+   end loop;
+end Read;

contrib/ada/readme.txt

@@ -0,0 +1,52 @@
+
+			ZLib for Ada thick binding (ZLib.Ada)
+			Release 1.2
+
+ZLib.Ada is a thick binding interface to the popular ZLib data
+compression library, available at http://www.gzip.org/zlib/.
+It provides Ada-style access to the ZLib C library.
+
+
+	Here are the main changes since ZLib.Ada 1.1:
+
+- The default header type has a name "Default" now. Auto is used only for
+  automatic GZip/ZLib header detection.
+
+- Added test for multitasking mtest.adb.
+
+- Added GNAT project file zlib.gpr.
+
+
+	How to build ZLib.Ada under GNAT
+
+You should have the ZLib library already build on your computer, before
+building ZLib.Ada. Make the directory of ZLib.Ada sources current and
+issue the command:
+
+  gnatmake test -largs -L<directory where libz.a is> -lz
+
+Or use the GNAT project file build for GNAT 3.15 or later:
+
+  gnatmake -Pzlib.gpr -L<directory where libz.a is>
+
+
+	How to build ZLib.Ada under Aonix ObjectAda for Win32 7.2.2
+
+1. Make a project with all *.ads and *.adb files from the distribution.
+2. Build the libz.a library from the ZLib C sources.
+3. Rename libz.a to z.lib.
+4. Add the library z.lib to the project.
+5. Add the libc.lib library from the ObjectAda distribution to the project.
+6. Build the executable using test.adb as a main procedure.
+
+
+	How to use ZLib.Ada
+
+The source files test.adb and read.adb are small demo programs that show
+the main functionality of ZLib.Ada.
+
+The routines from the package specifications are commented.
+
+
+Homepage: http://zlib-ada.sourceforge.net/
+Author: Dmitriy Anisimkov <anisimkov@yahoo.com>

contrib/ada/test.adb

@@ -0,0 +1,463 @@
+----------------------------------------------------------------
+--  ZLib for Ada thick binding.                               --
+--                                                            --
+--  Copyright (C) 2002-2003 Dmitriy Anisimkov                 --
+--                                                            --
+--  Open source license information is in the zlib.ads file.  --
+----------------------------------------------------------------
+
+--  $Id: test.adb,v 1.17 2003/08/12 12:13:30 vagul Exp $
+
+--  The program has a few aims.
+--  1. Test ZLib.Ada95 thick binding functionality.
+--  2. Show the example of use main functionality of the ZLib.Ada95 binding.
+--  3. Build this program automatically compile all ZLib.Ada95 packages under
+--     GNAT Ada95 compiler.
+
+with ZLib.Streams;
+with Ada.Streams.Stream_IO;
+with Ada.Numerics.Discrete_Random;
+
+with Ada.Text_IO;
+
+with Ada.Calendar;
+
+procedure Test is
+
+   use Ada.Streams;
+   use Stream_IO;
+
+   ------------------------------------
+   --  Test configuration parameters --
+   ------------------------------------
+
+   File_Size   : Count   := 100_000;
+   Continuous  : constant Boolean := False;
+
+   Header      : constant ZLib.Header_Type := ZLib.Default;
+                                              --  ZLib.None;
+                                              --  ZLib.Auto;
+                                              --  ZLib.GZip;
+   --  Do not use Header other then Default in ZLib versions 1.1.4
+   --  and older.
+
+   Strategy    : constant ZLib.Strategy_Type := ZLib.Default_Strategy;
+   Init_Random : constant := 10;
+
+   -- End --
+
+   In_File_Name  : constant String := "testzlib.in";
+   --  Name of the input file
+
+   Z_File_Name   : constant String := "testzlib.zlb";
+   --  Name of the compressed file.
+
+   Out_File_Name : constant String := "testzlib.out";
+   --  Name of the decompressed file.
+
+   File_In   : File_Type;
+   File_Out  : File_Type;
+   File_Back : File_Type;
+   File_Z    : ZLib.Streams.Stream_Type;
+
+   Filter : ZLib.Filter_Type;
+
+   Time_Stamp : Ada.Calendar.Time;
+
+   procedure Generate_File;
+   --  Generate file of spetsified size with some random data.
+   --  The random data is repeatable, for the good compression.
+
+   procedure Compare_Streams
+     (Left, Right : in out Root_Stream_Type'Class);
+   --  The procedure compearing data in 2 streams.
+   --  It is for compare data before and after compression/decompression.
+
+   procedure Compare_Files (Left, Right : String);
+   --  Compare files. Based on the Compare_Streams.
+
+   procedure Copy_Streams
+     (Source, Target : in out Root_Stream_Type'Class;
+      Buffer_Size    : in     Stream_Element_Offset := 1024);
+   --  Copying data from one stream to another. It is for test stream
+   --  interface of the library.
+
+   procedure Data_In
+     (Item : out Stream_Element_Array;
+      Last : out Stream_Element_Offset);
+   --  this procedure is for generic instantiation of
+   --  ZLib.Generic_Translate.
+   --  reading data from the File_In.
+
+   procedure Data_Out (Item : in Stream_Element_Array);
+   --  this procedure is for generic instantiation of
+   --  ZLib.Generic_Translate.
+   --  writing data to the File_Out.
+
+   procedure Stamp;
+   --  Store the timestamp to the local variable.
+
+   procedure Print_Statistic (Msg : String; Data_Size : ZLib.Count);
+   --  Print the time statistic with the message.
+
+   procedure Translate is new ZLib.Generic_Translate
+                                (Data_In  => Data_In,
+                                 Data_Out => Data_Out);
+   --  This procedure is moving data from File_In to File_Out
+   --  with compression or decompression, depend on initialization of
+   --  Filter parameter.
+
+   -------------------
+   -- Compare_Files --
+   -------------------
+
+   procedure Compare_Files (Left, Right : String) is
+      Left_File, Right_File : File_Type;
+   begin
+      Open (Left_File, In_File, Left);
+      Open (Right_File, In_File, Right);
+      Compare_Streams (Stream (Left_File).all, Stream (Right_File).all);
+      Close (Left_File);
+      Close (Right_File);
+   end Compare_Files;
+
+   ---------------------
+   -- Compare_Streams --
+   ---------------------
+
+   procedure Compare_Streams
+     (Left, Right : in out Ada.Streams.Root_Stream_Type'Class)
+   is
+      Left_Buffer, Right_Buffer : Stream_Element_Array (0 .. 16#FFF#);
+      Left_Last, Right_Last : Stream_Element_Offset;
+   begin
+      loop
+         Read (Left, Left_Buffer, Left_Last);
+         Read (Right, Right_Buffer, Right_Last);
+
+         if Left_Last /= Right_Last then
+            Ada.Text_IO.Put_Line ("Compare error :"
+              & Stream_Element_Offset'Image (Left_Last)
+              & " /= "
+              & Stream_Element_Offset'Image (Right_Last));
+
+            raise Constraint_Error;
+
+         elsif Left_Buffer (0 .. Left_Last)
+               /= Right_Buffer (0 .. Right_Last)
+         then
+            Ada.Text_IO.Put_Line ("ERROR: IN and OUT files is not equal.");
+            raise Constraint_Error;
+
+         end if;
+
+         exit when Left_Last < Left_Buffer'Last;
+      end loop;
+   end Compare_Streams;
+
+   ------------------
+   -- Copy_Streams --
+   ------------------
+
+   procedure Copy_Streams
+     (Source, Target : in out Ada.Streams.Root_Stream_Type'Class;
+      Buffer_Size    : in     Stream_Element_Offset := 1024)
+   is
+      Buffer : Stream_Element_Array (1 .. Buffer_Size);
+      Last   : Stream_Element_Offset;
+   begin
+      loop
+         Read  (Source, Buffer, Last);
+         Write (Target, Buffer (1 .. Last));
+
+         exit when Last < Buffer'Last;
+      end loop;
+   end Copy_Streams;
+
+   -------------
+   -- Data_In --
+   -------------
+
+   procedure Data_In
+     (Item : out Stream_Element_Array;
+      Last : out Stream_Element_Offset) is
+   begin
+      Read (File_In, Item, Last);
+   end Data_In;
+
+   --------------
+   -- Data_Out --
+   --------------
+
+   procedure Data_Out (Item : in Stream_Element_Array) is
+   begin
+      Write (File_Out, Item);
+   end Data_Out;
+
+   -------------------
+   -- Generate_File --
+   -------------------
+
+   procedure Generate_File is
+      subtype Visible_Symbols is Stream_Element range 16#20# .. 16#7E#;
+
+      package Random_Elements is
+         new Ada.Numerics.Discrete_Random (Visible_Symbols);
+
+      Gen    : Random_Elements.Generator;
+      Buffer : Stream_Element_Array := (1 .. 77 => 16#20#) & 10;
+
+      Buffer_Count : constant Count := File_Size / Buffer'Length;
+      --  Number of same buffers in the packet.
+
+      Density : constant Count := 30; --  from 0 to Buffer'Length - 2;
+
+      procedure Fill_Buffer (J, D : in Count);
+      --  Change the part of the buffer.
+
+      -----------------
+      -- Fill_Buffer --
+      -----------------
+
+      procedure Fill_Buffer (J, D : in Count) is
+      begin
+         for K in 0 .. D loop
+            Buffer
+              (Stream_Element_Offset ((J + K) mod (Buffer'Length - 1) + 1))
+             := Random_Elements.Random (Gen);
+
+         end loop;
+      end Fill_Buffer;
+
+   begin
+      Random_Elements.Reset (Gen, Init_Random);
+
+      Create (File_In, Out_File, In_File_Name);
+
+      Fill_Buffer (1, Buffer'Length - 2);
+
+      for J in 1 .. Buffer_Count loop
+         Write (File_In, Buffer);
+
+         Fill_Buffer (J, Density);
+      end loop;
+
+      --  fill remain size.
+
+      Write
+        (File_In,
+         Buffer
+           (1 .. Stream_Element_Offset
+                   (File_Size - Buffer'Length * Buffer_Count)));
+
+      Flush (File_In);
+      Close (File_In);
+   end Generate_File;
+
+   ---------------------
+   -- Print_Statistic --
+   ---------------------
+
+   procedure Print_Statistic (Msg : String; Data_Size : ZLib.Count) is
+      use Ada.Calendar;
+      use Ada.Text_IO;
+
+      package Count_IO is new Integer_IO (ZLib.Count);
+
+      Curr_Dur : Duration := Clock - Time_Stamp;
+   begin
+      Put (Msg);
+
+      Set_Col (20);
+      Ada.Text_IO.Put ("size =");
+
+      Count_IO.Put
+        (Data_Size,
+         Width => Stream_IO.Count'Image (File_Size)'Length);
+
+      Put_Line (" duration =" & Duration'Image (Curr_Dur));
+   end Print_Statistic;
+
+   -----------
+   -- Stamp --
+   -----------
+
+   procedure Stamp is
+   begin
+      Time_Stamp := Ada.Calendar.Clock;
+   end Stamp;
+
+begin
+   Ada.Text_IO.Put_Line ("ZLib " & ZLib.Version);
+
+   loop
+      Generate_File;
+
+      for Level in ZLib.Compression_Level'Range loop
+
+         Ada.Text_IO.Put_Line ("Level ="
+            & ZLib.Compression_Level'Image (Level));
+
+         --  Test generic interface.
+         Open   (File_In, In_File, In_File_Name);
+         Create (File_Out, Out_File, Z_File_Name);
+
+         Stamp;
+
+         --  Deflate using generic instantiation.
+
+         ZLib.Deflate_Init
+               (Filter   => Filter,
+                Level    => Level,
+                Strategy => Strategy,
+                Header   => Header);
+
+         Translate (Filter);
+         Print_Statistic ("Generic compress", ZLib.Total_Out (Filter));
+         ZLib.Close (Filter);
+
+         Close (File_In);
+         Close (File_Out);
+
+         Open   (File_In, In_File, Z_File_Name);
+         Create (File_Out, Out_File, Out_File_Name);
+
+         Stamp;
+
+         --  Inflate using generic instantiation.
+
+         ZLib.Inflate_Init (Filter, Header => Header);
+
+         Translate (Filter);
+         Print_Statistic ("Generic decompress", ZLib.Total_Out (Filter));
+
+         ZLib.Close (Filter);
+
+         Close (File_In);
+         Close (File_Out);
+
+         Compare_Files (In_File_Name, Out_File_Name);
+
+         --  Test stream interface.
+
+         --  Compress to the back stream.
+
+         Open   (File_In, In_File, In_File_Name);
+         Create (File_Back, Out_File, Z_File_Name);
+
+         Stamp;
+
+         ZLib.Streams.Create
+           (Stream          => File_Z,
+            Mode            => ZLib.Streams.Out_Stream,
+            Back            => ZLib.Streams.Stream_Access
+                                 (Stream (File_Back)),
+            Back_Compressed => True,
+            Level           => Level,
+            Strategy        => Strategy,
+            Header          => Header);
+
+         Copy_Streams
+           (Source => Stream (File_In).all,
+            Target => File_Z);
+
+         --  Flushing internal buffers to the back stream.
+
+         ZLib.Streams.Flush (File_Z, ZLib.Finish);
+
+         Print_Statistic ("Write compress",
+                          ZLib.Streams.Write_Total_Out (File_Z));
+
+         ZLib.Streams.Close (File_Z);
+
+         Close (File_In);
+         Close (File_Back);
+
+         --  Compare reading from original file and from
+         --  decompression stream.
+
+         Open (File_In,   In_File, In_File_Name);
+         Open (File_Back, In_File, Z_File_Name);
+
+         ZLib.Streams.Create
+           (Stream          => File_Z,
+            Mode            => ZLib.Streams.In_Stream,
+            Back            => ZLib.Streams.Stream_Access
+                                 (Stream (File_Back)),
+            Back_Compressed => True,
+            Header          => Header);
+
+         Stamp;
+         Compare_Streams (Stream (File_In).all, File_Z);
+
+         Print_Statistic ("Read decompress",
+                          ZLib.Streams.Read_Total_Out (File_Z));
+
+         ZLib.Streams.Close (File_Z);
+         Close (File_In);
+         Close (File_Back);
+
+         --  Compress by reading from compression stream.
+
+         Open (File_Back, In_File, In_File_Name);
+         Create (File_Out, Out_File, Z_File_Name);
+
+         ZLib.Streams.Create
+           (Stream          => File_Z,
+            Mode            => ZLib.Streams.In_Stream,
+            Back            => ZLib.Streams.Stream_Access
+                                 (Stream (File_Back)),
+            Back_Compressed => False,
+            Level           => Level,
+            Strategy        => Strategy,
+            Header          => Header);
+
+         Stamp;
+         Copy_Streams
+           (Source => File_Z,
+            Target => Stream (File_Out).all);
+
+         Print_Statistic ("Read compress",
+                          ZLib.Streams.Read_Total_Out (File_Z));
+
+         ZLib.Streams.Close (File_Z);
+
+         Close (File_Out);
+         Close (File_Back);
+
+         --  Decompress to decompression stream.
+
+         Open   (File_In,   In_File, Z_File_Name);
+         Create (File_Back, Out_File, Out_File_Name);
+
+         ZLib.Streams.Create
+           (Stream          => File_Z,
+            Mode            => ZLib.Streams.Out_Stream,
+            Back            => ZLib.Streams.Stream_Access
+                                 (Stream (File_Back)),
+            Back_Compressed => False,
+            Header          => Header);
+
+         Stamp;
+
+         Copy_Streams
+           (Source => Stream (File_In).all,
+            Target => File_Z);
+
+         Print_Statistic ("Write decompress",
+                          ZLib.Streams.Write_Total_Out (File_Z));
+
+         ZLib.Streams.Close (File_Z);
+         Close (File_In);
+         Close (File_Back);
+
+         Compare_Files (In_File_Name, Out_File_Name);
+      end loop;
+
+      Ada.Text_IO.Put_Line (Count'Image (File_Size) & " Ok.");
+
+      exit when not Continuous;
+
+      File_Size := File_Size + 1;
+   end loop;
+end Test;

contrib/ada/zlib-streams.adb

@@ -0,0 +1,215 @@
+----------------------------------------------------------------
+--  ZLib for Ada thick binding.                               --
+--                                                            --
+--  Copyright (C) 2002-2003 Dmitriy Anisimkov                 --
+--                                                            --
+--  Open source license information is in the zlib.ads file.  --
+----------------------------------------------------------------
+
+--  $Id: zlib-streams.adb,v 1.9 2003/08/12 13:15:31 vagul Exp $
+
+with Ada.Unchecked_Deallocation;
+
+package body ZLib.Streams is
+
+   -----------
+   -- Close --
+   -----------
+
+   procedure Close (Stream : in out Stream_Type) is
+      procedure Free is new Ada.Unchecked_Deallocation
+         (Stream_Element_Array, Buffer_Access);
+   begin
+      if Stream.Mode = Out_Stream or Stream.Mode = Duplex then
+         --  We should flush the data written by the writer.
+
+         Flush (Stream, Finish);
+
+         Close (Stream.Writer);
+      end if;
+
+      if Stream.Mode = In_Stream or Stream.Mode = Duplex then
+         Close (Stream.Reader);
+         Free (Stream.Buffer);
+      end if;
+   end Close;
+
+   ------------
+   -- Create --
+   ------------
+
+   procedure Create
+     (Stream            :    out Stream_Type;
+      Mode              : in     Stream_Mode;
+      Back              : in     Stream_Access;
+      Back_Compressed   : in     Boolean;
+      Level             : in     Compression_Level := Default_Compression;
+      Strategy          : in     Strategy_Type     := Default_Strategy;
+      Header            : in     Header_Type       := Default;
+      Read_Buffer_Size  : in     Ada.Streams.Stream_Element_Offset
+                                    := Default_Buffer_Size;
+      Write_Buffer_Size : in     Ada.Streams.Stream_Element_Offset
+                                    := Default_Buffer_Size)
+   is
+
+      subtype Buffer_Subtype is Stream_Element_Array (1 .. Read_Buffer_Size);
+
+      procedure Init_Filter
+         (Filter   : in out Filter_Type;
+          Compress : in     Boolean);
+
+      -----------------
+      -- Init_Filter --
+      -----------------
+
+      procedure Init_Filter
+         (Filter   : in out Filter_Type;
+          Compress : in     Boolean) is
+      begin
+         if Compress then
+            Deflate_Init
+              (Filter, Level, Strategy, Header => Header);
+         else
+            Inflate_Init (Filter, Header => Header);
+         end if;
+      end Init_Filter;
+
+   begin
+      Stream.Back := Back;
+      Stream.Mode := Mode;
+
+      if Mode = Out_Stream or Mode = Duplex then
+         Init_Filter (Stream.Writer, Back_Compressed);
+         Stream.Buffer_Size := Write_Buffer_Size;
+      else
+         Stream.Buffer_Size := 0;
+      end if;
+
+      if Mode = In_Stream or Mode = Duplex then
+         Init_Filter (Stream.Reader, not Back_Compressed);
+
+         Stream.Buffer     := new Buffer_Subtype;
+         Stream.Rest_First := Stream.Buffer'Last + 1;
+      end if;
+   end Create;
+
+   -----------
+   -- Flush --
+   -----------
+
+   procedure Flush
+     (Stream : in out Stream_Type;
+      Mode   : in     Flush_Mode := Sync_Flush)
+   is
+      Buffer : Stream_Element_Array (1 .. Stream.Buffer_Size);
+      Last   : Stream_Element_Offset;
+   begin
+      loop
+         Flush (Stream.Writer, Buffer, Last, Mode);
+
+         Ada.Streams.Write (Stream.Back.all, Buffer (1 .. Last));
+
+         exit when Last < Buffer'Last;
+      end loop;
+   end Flush;
+
+   ----------
+   -- Read --
+   ----------
+
+   procedure Read
+     (Stream : in out Stream_Type;
+      Item   :    out Stream_Element_Array;
+      Last   :    out Stream_Element_Offset)
+   is
+
+      procedure Read
+        (Item : out Stream_Element_Array;
+         Last : out Stream_Element_Offset);
+
+      ----------
+      -- Read --
+      ----------
+
+      procedure Read
+        (Item : out Stream_Element_Array;
+         Last : out Stream_Element_Offset) is
+      begin
+         Ada.Streams.Read (Stream.Back.all, Item, Last);
+      end Read;
+
+      procedure Read is new ZLib.Read
+         (Read       => Read,
+          Buffer     => Stream.Buffer.all,
+          Rest_First => Stream.Rest_First,
+          Rest_Last  => Stream.Rest_Last);
+
+   begin
+      Read (Stream.Reader, Item, Last);
+   end Read;
+
+   -------------------
+   -- Read_Total_In --
+   -------------------
+
+   function Read_Total_In (Stream : in Stream_Type) return Count is
+   begin
+      return Total_In (Stream.Reader);
+   end Read_Total_In;
+
+   --------------------
+   -- Read_Total_Out --
+   --------------------
+
+   function Read_Total_Out (Stream : in Stream_Type) return Count is
+   begin
+      return Total_Out (Stream.Reader);
+   end Read_Total_Out;
+
+   -----------
+   -- Write --
+   -----------
+
+   procedure Write
+     (Stream : in out Stream_Type;
+      Item   : in     Stream_Element_Array)
+   is
+
+      procedure Write (Item : in Stream_Element_Array);
+
+      -----------
+      -- Write --
+      -----------
+
+      procedure Write (Item : in Stream_Element_Array) is
+      begin
+         Ada.Streams.Write (Stream.Back.all, Item);
+      end Write;
+
+      procedure Write is new ZLib.Write
+         (Write       => Write,
+          Buffer_Size => Stream.Buffer_Size);
+
+   begin
+      Write (Stream.Writer, Item, No_Flush);
+   end Write;
+
+   --------------------
+   -- Write_Total_In --
+   --------------------
+
+   function Write_Total_In (Stream : in Stream_Type) return Count is
+   begin
+      return Total_In (Stream.Writer);
+   end Write_Total_In;
+
+   ---------------------
+   -- Write_Total_Out --
+   ---------------------
+
+   function Write_Total_Out (Stream : in Stream_Type) return Count is
+   begin
+      return Total_Out (Stream.Writer);
+   end Write_Total_Out;
+
+end ZLib.Streams;

contrib/ada/zlib-streams.ads

@@ -0,0 +1,112 @@
+----------------------------------------------------------------
+--  ZLib for Ada thick binding.                               --
+--                                                            --
+--  Copyright (C) 2002-2003 Dmitriy Anisimkov                 --
+--                                                            --
+--  Open source license information is in the zlib.ads file.  --
+----------------------------------------------------------------
+
+--  $Id: zlib-streams.ads,v 1.11 2003/08/12 13:15:31 vagul Exp $
+
+package ZLib.Streams is
+
+   type Stream_Mode is (In_Stream, Out_Stream, Duplex);
+
+   type Stream_Access is access all Ada.Streams.Root_Stream_Type'Class;
+
+   type Stream_Type is
+      new Ada.Streams.Root_Stream_Type with private;
+
+   procedure Read
+     (Stream : in out Stream_Type;
+      Item   :    out Ada.Streams.Stream_Element_Array;
+      Last   :    out Ada.Streams.Stream_Element_Offset);
+
+   procedure Write
+     (Stream : in out Stream_Type;
+      Item   : in     Ada.Streams.Stream_Element_Array);
+
+   procedure Flush
+     (Stream : in out Stream_Type;
+      Mode   : in     Flush_Mode := Sync_Flush);
+   --  Flush the written data to the back stream,
+   --  all data placed to the compressor is flushing to the Back stream.
+   --  Should not be used untill necessary, becouse it is decreasing
+   --  compression.
+
+   function Read_Total_In (Stream : in Stream_Type) return Count;
+   pragma Inline (Read_Total_In);
+   --  Return total number of bytes read from back stream so far.
+
+   function Read_Total_Out (Stream : in Stream_Type) return Count;
+   pragma Inline (Read_Total_Out);
+   --  Return total number of bytes read so far.
+
+   function Write_Total_In (Stream : in Stream_Type) return Count;
+   pragma Inline (Write_Total_In);
+   --  Return total number of bytes written so far.
+
+   function Write_Total_Out (Stream : in Stream_Type) return Count;
+   pragma Inline (Write_Total_Out);
+   --  Return total number of bytes written to the back stream.
+
+   procedure Create
+     (Stream            :    out Stream_Type;
+      Mode              : in     Stream_Mode;
+      Back              : in     Stream_Access;
+      Back_Compressed   : in     Boolean;
+      Level             : in     Compression_Level := Default_Compression;
+      Strategy          : in     Strategy_Type     := Default_Strategy;
+      Header            : in     Header_Type       := Default;
+      Read_Buffer_Size  : in     Ada.Streams.Stream_Element_Offset
+                                    := Default_Buffer_Size;
+      Write_Buffer_Size : in     Ada.Streams.Stream_Element_Offset
+                                    := Default_Buffer_Size);
+   --  Create the Comression/Decompression stream.
+   --  If mode is In_Stream then Write operation is disabled.
+   --  If mode is Out_Stream then Read operation is disabled.
+
+   --  If Back_Compressed is true then
+   --  Data written to the Stream is compressing to the Back stream
+   --  and data read from the Stream is decompressed data from the Back stream.
+
+   --  If Back_Compressed is false then
+   --  Data written to the Stream is decompressing to the Back stream
+   --  and data read from the Stream is compressed data from the Back stream.
+
+   --  !!! When the Need_Header is False ZLib-Ada is using undocumented
+   --  ZLib 1.1.4 functionality to do not create/wait for ZLib headers.
+
+   procedure Close (Stream : in out Stream_Type);
+
+private
+
+   use Ada.Streams;
+
+   type Buffer_Access is access all Stream_Element_Array;
+
+   type Stream_Type
+     is new Root_Stream_Type with
+   record
+      Mode       : Stream_Mode;
+
+      Buffer     : Buffer_Access;
+      Rest_First : Stream_Element_Offset;
+      Rest_Last  : Stream_Element_Offset;
+      --  Buffer for Read operation.
+      --  We need to have this buffer in the record
+      --  becouse not all read data from back stream
+      --  could be processed during the read operation.
+
+      Buffer_Size : Stream_Element_Offset;
+      --  Buffer size for write operation.
+      --  We do not need to have this buffer
+      --  in the record becouse all data could be
+      --  processed in the write operation.
+
+      Back       : Stream_Access;
+      Reader     : Filter_Type;
+      Writer     : Filter_Type;
+   end record;
+
+end ZLib.Streams;

contrib/ada/zlib-thin.adb

@@ -0,0 +1,185 @@
+----------------------------------------------------------------
+--  ZLib for Ada thick binding.                               --
+--                                                            --
+--  Copyright (C) 2002-2003 Dmitriy Anisimkov                 --
+--                                                            --
+--  Open source license information is in the zlib.ads file.  --
+----------------------------------------------------------------
+
+--  $Id: zlib-thin.adb,v 1.6 2003/01/21 15:26:37 vagul Exp $
+
+package body ZLib.Thin is
+
+   ZLIB_VERSION : constant Chars_Ptr :=
+      Interfaces.C.Strings.New_String ("1.1.4");
+
+   Z_Stream_Size : constant Int := Z_Stream'Size / System.Storage_Unit;
+
+   --------------
+   -- Avail_In --
+   --------------
+
+   function Avail_In (Strm : in Z_Stream) return UInt is
+   begin
+      return Strm.Avail_In;
+   end Avail_In;
+
+   ---------------
+   -- Avail_Out --
+   ---------------
+
+   function Avail_Out (Strm : in Z_Stream) return UInt is
+   begin
+      return Strm.Avail_Out;
+   end Avail_Out;
+
+   ------------------
+   -- Deflate_Init --
+   ------------------
+
+   function Deflate_Init
+     (strm  : in Z_Streamp;
+      level : in Int := Z_DEFAULT_COMPRESSION)
+      return  Int is
+   begin
+      return deflateInit (strm, level, ZLIB_VERSION, Z_Stream_Size);
+   end Deflate_Init;
+
+   function Deflate_Init
+     (strm       : Z_Streamp;
+      level      : Int;
+      method     : Int;
+      windowBits : Int;
+      memLevel   : Int;
+      strategy   : Int)
+      return       Int is
+   begin
+      return deflateInit2
+               (strm,
+                level,
+                method,
+                windowBits,
+                memLevel,
+                strategy,
+                ZLIB_VERSION,
+                Z_Stream_Size);
+   end Deflate_Init;
+
+   ------------------
+   -- Inflate_Init --
+   ------------------
+
+   function Inflate_Init (strm : Z_Streamp) return Int is
+   begin
+      return inflateInit (strm, ZLIB_VERSION, Z_Stream_Size);
+   end Inflate_Init;
+
+   function Inflate_Init (strm : Z_Streamp; windowBits : Int) return Int is
+   begin
+      return inflateInit2 (strm, windowBits, ZLIB_VERSION, Z_Stream_Size);
+   end Inflate_Init;
+
+   function Last_Error_Message (Strm : in Z_Stream) return String is
+      use Interfaces.C.Strings;
+   begin
+      if Strm.msg = Null_Ptr then
+         return "";
+      else
+         return Value (Strm.msg);
+      end if;
+   end Last_Error_Message;
+
+   -------------
+   -- Need_In --
+   -------------
+
+   function Need_In (strm : Z_Stream) return Boolean is
+   begin
+      return strm.Avail_In = 0;
+   end Need_In;
+
+   --------------
+   -- Need_Out --
+   --------------
+
+   function Need_Out (strm : Z_Stream) return Boolean is
+   begin
+      return strm.Avail_Out = 0;
+   end Need_Out;
+
+   ------------
+   -- Set_In --
+   ------------
+
+   procedure Set_In
+     (Strm   : in out Z_Stream;
+      Buffer : in Byte_Access;
+      Size   : in UInt) is
+   begin
+      Strm.Next_In  := Buffer;
+      Strm.Avail_In := Size;
+   end Set_In;
+
+   procedure Set_In
+     (Strm   : in out Z_Stream;
+      Buffer : in Voidp;
+      Size   : in UInt) is
+   begin
+      Set_In (Strm, Bytes.To_Pointer (Buffer), Size);
+   end Set_In;
+
+   ------------------
+   -- Set_Mem_Func --
+   ------------------
+
+   procedure Set_Mem_Func
+     (Strm   : in out Z_Stream;
+      Opaque : in Voidp;
+      Alloc  : in alloc_func;
+      Free   : in free_func) is
+   begin
+      Strm.opaque := Opaque;
+      Strm.zalloc := Alloc;
+      Strm.zfree  := Free;
+   end Set_Mem_Func;
+
+   -------------
+   -- Set_Out --
+   -------------
+
+   procedure Set_Out
+     (Strm   : in out Z_Stream;
+      Buffer : in Byte_Access;
+      Size   : in UInt) is
+   begin
+      Strm.Next_Out  := Buffer;
+      Strm.Avail_Out := Size;
+   end Set_Out;
+
+   procedure Set_Out
+     (Strm   : in out Z_Stream;
+      Buffer : in Voidp;
+      Size   : in UInt) is
+   begin
+      Set_Out (Strm, Bytes.To_Pointer (Buffer), Size);
+   end Set_Out;
+
+   --------------
+   -- Total_In --
+   --------------
+
+   function Total_In (Strm : in Z_Stream) return ULong is
+   begin
+      return Strm.Total_In;
+   end Total_In;
+
+   ---------------
+   -- Total_Out --
+   ---------------
+
+   function Total_Out (Strm : in Z_Stream) return ULong is
+   begin
+      return Strm.Total_Out;
+   end Total_Out;
+
+end ZLib.Thin;

contrib/ada/zlib-thin.ads

@@ -0,0 +1,478 @@
+----------------------------------------------------------------
+--  ZLib for Ada thick binding.                               --
+--                                                            --
+--  Copyright (C) 2002-2003 Dmitriy Anisimkov                 --
+--                                                            --
+--  Open source license information is in the zlib.ads file.  --
+----------------------------------------------------------------
+
+--  $Id: zlib-thin.ads,v 1.8 2003/08/12 13:16:51 vagul Exp $
+
+with Interfaces.C.Strings;
+with System.Address_To_Access_Conversions;
+
+private package ZLib.Thin is
+
+   --  From zconf.h
+
+   MAX_MEM_LEVEL : constant := 9;         --  zconf.h:105
+                                          --  zconf.h:105
+   MAX_WBITS : constant := 15;      --  zconf.h:115
+                                    --  32K LZ77 window
+                                    --  zconf.h:115
+   SEEK_SET : constant := 8#0000#;  --  zconf.h:244
+                                    --  Seek from beginning of file.
+                                    --  zconf.h:244
+   SEEK_CUR : constant := 1;        --  zconf.h:245
+                                    --  Seek from current position.
+                                    --  zconf.h:245
+   SEEK_END : constant := 2;        --  zconf.h:246
+                                    --  Set file pointer to EOF plus "offset"
+                                    --  zconf.h:246
+
+   type Byte is new Interfaces.C.unsigned_char; --  8 bits
+                                                --  zconf.h:214
+   type UInt is new Interfaces.C.unsigned;      --  16 bits or more
+                                                --  zconf.h:216
+   type Int is new Interfaces.C.int;
+
+   type ULong is new Interfaces.C.unsigned;     --  32 bits or more
+                                                --  zconf.h:217
+   subtype Chars_Ptr is Interfaces.C.Strings.chars_ptr;
+
+   type ULong_Access is access ULong;
+   type Int_Access is access Int;
+   subtype Voidp is System.Address;            --  zconf.h:232
+
+   package Bytes is new System.Address_To_Access_Conversions (Byte);
+
+   subtype Byte_Access is Bytes.Object_Pointer;
+
+   --  end from zconf
+
+   Z_NO_FLUSH : constant := 8#0000#;   --  zlib.h:125
+                                       --  zlib.h:125
+   Z_PARTIAL_FLUSH : constant := 1;       --  zlib.h:126
+                                          --  will be removed, use
+                                          --  Z_SYNC_FLUSH instead
+                                          --  zlib.h:126
+   Z_SYNC_FLUSH : constant := 2;       --  zlib.h:127
+                                       --  zlib.h:127
+   Z_FULL_FLUSH : constant := 3;       --  zlib.h:128
+                                       --  zlib.h:128
+   Z_FINISH : constant := 4;        --  zlib.h:129
+                                    --  zlib.h:129
+   Z_OK : constant := 8#0000#;   --  zlib.h:132
+                                 --  zlib.h:132
+   Z_STREAM_END : constant := 1;       --  zlib.h:133
+                                       --  zlib.h:133
+   Z_NEED_DICT : constant := 2;        --  zlib.h:134
+                                       --  zlib.h:134
+   Z_ERRNO : constant := -1;        --  zlib.h:135
+                                    --  zlib.h:135
+   Z_STREAM_ERROR : constant := -2;       --  zlib.h:136
+                                          --  zlib.h:136
+   Z_DATA_ERROR : constant := -3;      --  zlib.h:137
+                                       --  zlib.h:137
+   Z_MEM_ERROR : constant := -4;       --  zlib.h:138
+                                       --  zlib.h:138
+   Z_BUF_ERROR : constant := -5;       --  zlib.h:139
+                                       --  zlib.h:139
+   Z_VERSION_ERROR : constant := -6;      --  zlib.h:140
+                                          --  zlib.h:140
+   Z_NO_COMPRESSION : constant := 8#0000#;   --  zlib.h:145
+                                             --  zlib.h:145
+   Z_BEST_SPEED : constant := 1;       --  zlib.h:146
+                                       --  zlib.h:146
+   Z_BEST_COMPRESSION : constant := 9;       --  zlib.h:147
+                                             --  zlib.h:147
+   Z_DEFAULT_COMPRESSION : constant := -1;      --  zlib.h:148
+                                                --  zlib.h:148
+   Z_FILTERED : constant := 1;      --  zlib.h:151
+                                    --  zlib.h:151
+   Z_HUFFMAN_ONLY : constant := 2;        --  zlib.h:152
+                                          --  zlib.h:152
+   Z_DEFAULT_STRATEGY : constant := 8#0000#; --  zlib.h:153
+                                             --  zlib.h:153
+   Z_BINARY : constant := 8#0000#;  --  zlib.h:156
+                                    --  zlib.h:156
+   Z_ASCII : constant := 1;      --  zlib.h:157
+                                 --  zlib.h:157
+   Z_UNKNOWN : constant := 2;       --  zlib.h:158
+                                    --  zlib.h:158
+   Z_DEFLATED : constant := 8;      --  zlib.h:161
+                                    --  zlib.h:161
+   Z_NULL : constant := 8#0000#; --  zlib.h:164
+                                 --  for initializing zalloc, zfree, opaque
+                                 --  zlib.h:164
+   type gzFile is new Voidp;                  --  zlib.h:646
+
+   type Z_Stream is private;
+
+   type Z_Streamp is access all Z_Stream;     --  zlib.h:89
+
+   type alloc_func is access function
+     (Opaque : Voidp;
+      Items  : UInt;
+      Size   : UInt)
+      return Voidp; --  zlib.h:63
+
+   type free_func is access procedure (opaque : Voidp; address : Voidp);
+
+   function zlibVersion return Chars_Ptr;
+
+   function Deflate (strm : Z_Streamp; flush : Int) return Int;
+
+   function DeflateEnd (strm : Z_Streamp) return Int;
+
+   function Inflate (strm : Z_Streamp; flush : Int) return Int;
+
+   function InflateEnd (strm : Z_Streamp) return Int;
+
+   function deflateSetDictionary
+     (strm       : Z_Streamp;
+      dictionary : Byte_Access;
+      dictLength : UInt)
+      return       Int;
+
+   function deflateCopy (dest : Z_Streamp; source : Z_Streamp) return Int;
+   --  zlib.h:478
+
+   function deflateReset (strm : Z_Streamp) return Int; -- zlib.h:495
+
+   function deflateParams
+     (strm     : Z_Streamp;
+      level    : Int;
+      strategy : Int)
+      return     Int;       -- zlib.h:506
+
+   function inflateSetDictionary
+     (strm       : Z_Streamp;
+      dictionary : Byte_Access;
+      dictLength : UInt)
+      return       Int; --  zlib.h:548
+
+   function inflateSync (strm : Z_Streamp) return Int;  --  zlib.h:565
+
+   function inflateReset (strm : Z_Streamp) return Int; --  zlib.h:580
+
+   function compress
+     (dest      : Byte_Access;
+      destLen   : ULong_Access;
+      source    : Byte_Access;
+      sourceLen : ULong)
+      return      Int;           -- zlib.h:601
+
+   function compress2
+     (dest      : Byte_Access;
+      destLen   : ULong_Access;
+      source    : Byte_Access;
+      sourceLen : ULong;
+      level     : Int)
+      return      Int;          -- zlib.h:615
+
+   function uncompress
+     (dest      : Byte_Access;
+      destLen   : ULong_Access;
+      source    : Byte_Access;
+      sourceLen : ULong)
+      return      Int;
+
+   function gzopen (path : Chars_Ptr; mode : Chars_Ptr) return gzFile;
+
+   function gzdopen (fd : Int; mode : Chars_Ptr) return gzFile;
+
+   function gzsetparams
+     (file     : gzFile;
+      level    : Int;
+      strategy : Int)
+      return     Int;
+
+   function gzread
+     (file : gzFile;
+      buf  : Voidp;
+      len  : UInt)
+      return Int;
+
+   function gzwrite
+     (file : in gzFile;
+      buf  : in Voidp;
+      len  : in UInt)
+      return Int;
+
+   function gzprintf (file : in gzFile; format : in Chars_Ptr) return Int;
+
+   function gzputs (file : in gzFile; s : in Chars_Ptr) return Int;
+
+   function gzgets
+     (file : gzFile;
+      buf  : Chars_Ptr;
+      len  : Int)
+      return Chars_Ptr;
+
+   function gzputc (file : gzFile; char : Int) return Int;
+
+   function gzgetc (file : gzFile) return Int;
+
+   function gzflush (file : gzFile; flush : Int) return Int;
+
+   function gzseek
+     (file   : gzFile;
+      offset : Int;
+      whence : Int)
+      return   Int;
+
+   function gzrewind (file : gzFile) return Int;
+
+   function gztell (file : gzFile) return Int;
+
+   function gzeof (file : gzFile) return Int;
+
+   function gzclose (file : gzFile) return Int;
+
+   function gzerror (file : gzFile; errnum : Int_Access) return Chars_Ptr;
+
+   function adler32
+     (adler : ULong;
+      buf   : Byte_Access;
+      len   : UInt)
+      return  ULong;
+
+   function crc32
+     (crc  : ULong;
+      buf  : Byte_Access;
+      len  : UInt)
+      return ULong;
+
+   function deflateInit
+     (strm        : Z_Streamp;
+      level       : Int;
+      version     : Chars_Ptr;
+      stream_size : Int)
+      return        Int;
+
+   function Deflate_Init
+     (strm  : in Z_Streamp;
+      level : in Int := Z_DEFAULT_COMPRESSION)
+      return  Int;
+   pragma Inline (Deflate_Init);
+
+   function deflateInit2
+     (strm        : Z_Streamp;
+      level       : Int;
+      method      : Int;
+      windowBits  : Int;
+      memLevel    : Int;
+      strategy    : Int;
+      version     : Chars_Ptr;
+      stream_size : Int)
+      return        Int;
+
+   function Deflate_Init
+     (strm       : Z_Streamp;
+      level      : Int;
+      method     : Int;
+      windowBits : Int;
+      memLevel   : Int;
+      strategy   : Int)
+      return       Int;
+   pragma Inline (Deflate_Init);
+
+   function inflateInit
+     (strm        : Z_Streamp;
+      version     : Chars_Ptr;
+      stream_size : Int)
+      return        Int;
+
+   function Inflate_Init (strm : Z_Streamp) return Int;
+   pragma Inline (Inflate_Init);
+
+   function inflateInit2
+     (strm        : in Z_Streamp;
+      windowBits  : in Int;
+      version     : in Chars_Ptr;
+      stream_size : in Int)
+      return      Int;
+
+   function inflateBackInit
+     (strm        : in Z_Streamp;
+      windowBits  : in Int;
+      window      : in Byte_Access;
+      version     : in Chars_Ptr;
+      stream_size : in Int)
+      return      Int;
+   --  Size of window have to be 2**windowBits.
+
+   function Inflate_Init (strm : Z_Streamp; windowBits : Int) return Int;
+   pragma Inline (Inflate_Init);
+
+   function zError (err : Int) return Chars_Ptr;
+
+   function inflateSyncPoint (z : Z_Streamp) return Int;
+
+   function get_crc_table return ULong_Access;
+
+   --  Interface to the available fields of the z_stream structure.
+   --  The application must update next_in and avail_in when avail_in has
+   --  dropped to zero. It must update next_out and avail_out when avail_out
+   --  has dropped to zero. The application must initialize zalloc, zfree and
+   --  opaque before calling the init function.
+
+   function Need_In (strm : in Z_Stream) return Boolean;
+   --  return true when we do not need to setup Next_In and Avail_In fields.
+   pragma Inline (Need_In);
+
+   function Need_Out (strm : in Z_Stream) return Boolean;
+   --  return true when we do not need to setup Next_Out and Avail_Out field.
+   pragma Inline (Need_Out);
+
+   procedure Set_In
+     (Strm   : in out Z_Stream;
+      Buffer : in Byte_Access;
+      Size   : in UInt);
+   pragma Inline (Set_In);
+
+   procedure Set_In
+     (Strm   : in out Z_Stream;
+      Buffer : in Voidp;
+      Size   : in UInt);
+   pragma Inline (Set_In);
+
+   procedure Set_Out
+     (Strm   : in out Z_Stream;
+      Buffer : in Byte_Access;
+      Size   : in UInt);
+   pragma Inline (Set_Out);
+
+   procedure Set_Out
+     (Strm   : in out Z_Stream;
+      Buffer : in Voidp;
+      Size   : in UInt);
+   pragma Inline (Set_Out);
+
+   procedure Set_Mem_Func
+     (Strm   : in out Z_Stream;
+      Opaque : in Voidp;
+      Alloc  : in alloc_func;
+      Free   : in free_func);
+   pragma Inline (Set_Mem_Func);
+
+   function Last_Error_Message (Strm : in Z_Stream) return String;
+   pragma Inline (Last_Error_Message);
+
+   function Avail_Out (Strm : in Z_Stream) return UInt;
+   pragma Inline (Avail_Out);
+
+   function Avail_In (Strm : in Z_Stream) return UInt;
+   pragma Inline (Avail_In);
+
+   function Total_In (Strm : in Z_Stream) return ULong;
+   pragma Inline (Total_In);
+
+   function Total_Out (Strm : in Z_Stream) return ULong;
+   pragma Inline (Total_Out);
+
+   function inflateCopy
+     (dest   : in Z_Streamp;
+      Source : in Z_Streamp)
+      return Int;
+
+   function compressBound (Source_Len : in ULong) return ULong;
+
+   function deflateBound
+     (Strm       : in Z_Streamp;
+      Source_Len : in ULong)
+      return     ULong;
+
+   function gzungetc (C : in Int; File : in  gzFile) return Int;
+
+   function zlibCompileFlags return ULong;
+
+private
+
+   type Z_Stream is record            -- zlib.h:68
+      Next_In   : Byte_Access;        -- next input byte
+      Avail_In  : UInt       := 0;    -- number of bytes available at next_in
+      Total_In  : ULong      := 0;    -- total nb of input bytes read so far
+      Next_Out  : Byte_Access;        -- next output byte should be put there
+      Avail_Out : UInt       := 0;    -- remaining free space at next_out
+      Total_Out : ULong      := 0;    -- total nb of bytes output so far
+      msg       : Chars_Ptr;          -- last error message, NULL if no error
+      state     : Voidp;              -- not visible by applications
+      zalloc    : alloc_func := null; -- used to allocate the internal state
+      zfree     : free_func  := null; -- used to free the internal state
+      opaque    : Voidp;              -- private data object passed to
+                                      --  zalloc and zfree
+      data_type : Int;                -- best guess about the data type:
+                                      --  ascii or binary
+      adler     : ULong;              -- adler32 value of the uncompressed
+                                      --  data
+      reserved  : ULong;              -- reserved for future use
+   end record;
+
+   pragma Convention (C, Z_Stream);
+
+   pragma Import (C, zlibVersion, "zlibVersion");
+   pragma Import (C, Deflate, "deflate");
+   pragma Import (C, DeflateEnd, "deflateEnd");
+   pragma Import (C, Inflate, "inflate");
+   pragma Import (C, InflateEnd, "inflateEnd");
+   pragma Import (C, deflateSetDictionary, "deflateSetDictionary");
+   pragma Import (C, deflateCopy, "deflateCopy");
+   pragma Import (C, deflateReset, "deflateReset");
+   pragma Import (C, deflateParams, "deflateParams");
+   pragma Import (C, inflateSetDictionary, "inflateSetDictionary");
+   pragma Import (C, inflateSync, "inflateSync");
+   pragma Import (C, inflateReset, "inflateReset");
+   pragma Import (C, compress, "compress");
+   pragma Import (C, compress2, "compress2");
+   pragma Import (C, uncompress, "uncompress");
+   pragma Import (C, gzopen, "gzopen");
+   pragma Import (C, gzdopen, "gzdopen");
+   pragma Import (C, gzsetparams, "gzsetparams");
+   pragma Import (C, gzread, "gzread");
+   pragma Import (C, gzwrite, "gzwrite");
+   pragma Import (C, gzprintf, "gzprintf");
+   pragma Import (C, gzputs, "gzputs");
+   pragma Import (C, gzgets, "gzgets");
+   pragma Import (C, gzputc, "gzputc");
+   pragma Import (C, gzgetc, "gzgetc");
+   pragma Import (C, gzflush, "gzflush");
+   pragma Import (C, gzseek, "gzseek");
+   pragma Import (C, gzrewind, "gzrewind");
+   pragma Import (C, gztell, "gztell");
+   pragma Import (C, gzeof, "gzeof");
+   pragma Import (C, gzclose, "gzclose");
+   pragma Import (C, gzerror, "gzerror");
+   pragma Import (C, adler32, "adler32");
+   pragma Import (C, crc32, "crc32");
+   pragma Import (C, deflateInit, "deflateInit_");
+   pragma Import (C, inflateInit, "inflateInit_");
+   pragma Import (C, deflateInit2, "deflateInit2_");
+   pragma Import (C, inflateInit2, "inflateInit2_");
+   pragma Import (C, zError, "zError");
+   pragma Import (C, inflateSyncPoint, "inflateSyncPoint");
+   pragma Import (C, get_crc_table, "get_crc_table");
+
+   --  since zlib 1.2.0:
+
+   pragma Import (C, inflateCopy, "inflateCopy");
+   pragma Import (C, compressBound, "compressBound");
+   pragma Import (C, deflateBound, "deflateBound");
+   pragma Import (C, gzungetc, "gzungetc");
+   pragma Import (C, zlibCompileFlags, "zlibCompileFlags");
+
+   pragma Import (C, inflateBackInit, "inflateBackInit_");
+
+   --  I stopped binding the inflateBack routines, becouse realize that
+   --  it does not support zlib and gzip headers for now, and have no
+   --  symmetric deflateBack routines.
+   --  ZLib-Ada is symmetric regarding deflate/inflate data transformation
+   --  and has a similar generic callback interface for the
+   --  deflate/inflate transformation based on the regular Deflate/Inflate
+   --  routines.
+
+   --  pragma Import (C, inflateBack, "inflateBack");
+   --  pragma Import (C, inflateBackEnd, "inflateBackEnd");
+
+end ZLib.Thin;

contrib/ada/zlib.adb

@@ -0,0 +1,674 @@
+----------------------------------------------------------------
+--  ZLib for Ada thick binding.                               --
+--                                                            --
+--  Copyright (C) 2002-2003 Dmitriy Anisimkov                 --
+--                                                            --
+--  Open source license information is in the zlib.ads file.  --
+----------------------------------------------------------------
+
+--  $Id: zlib.adb,v 1.19 2003/07/13 16:02:19 vagul Exp $
+
+with Ada.Exceptions;
+with Ada.Unchecked_Conversion;
+with Ada.Unchecked_Deallocation;
+
+with Interfaces.C.Strings;
+
+with ZLib.Thin;
+
+package body ZLib is
+
+   use type Thin.Int;
+
+   type Z_Stream is new Thin.Z_Stream;
+
+   type Return_Code_Enum is
+      (OK,
+       STREAM_END,
+       NEED_DICT,
+       ERRNO,
+       STREAM_ERROR,
+       DATA_ERROR,
+       MEM_ERROR,
+       BUF_ERROR,
+       VERSION_ERROR);
+
+   type Flate_Step_Function is access
+     function (Strm : Thin.Z_Streamp; flush : Thin.Int) return Thin.Int;
+   pragma Convention (C, Flate_Step_Function);
+
+   type Flate_End_Function is access
+      function (Ctrm : in Thin.Z_Streamp) return Thin.Int;
+   pragma Convention (C, Flate_End_Function);
+
+   type Flate_Type is record
+      Step : Flate_Step_Function;
+      Done : Flate_End_Function;
+   end record;
+
+   subtype Footer_Array is Stream_Element_Array (1 .. 8);
+
+   Simple_GZip_Header : constant Stream_Element_Array (1 .. 10)
+     := (16#1f#, 16#8b#,                 --  Magic header
+         16#08#,                         --  Z_DEFLATED
+         16#00#,                         --  Flags
+         16#00#, 16#00#, 16#00#, 16#00#, --  Time
+         16#00#,                         --  XFlags
+         16#03#                          --  OS code
+        );
+   --  The simplest gzip header is not for informational, but just for
+   --  gzip format compatibility.
+   --  Note that some code below is using assumption
+   --  Simple_GZip_Header'Last > Footer_Array'Last, so do not make
+   --  Simple_GZip_Header'Last <= Footer_Array'Last.
+
+   Return_Code : constant array (Thin.Int range <>) of Return_Code_Enum
+     := (0 => OK,
+         1 => STREAM_END,
+         2 => NEED_DICT,
+        -1 => ERRNO,
+        -2 => STREAM_ERROR,
+        -3 => DATA_ERROR,
+        -4 => MEM_ERROR,
+        -5 => BUF_ERROR,
+        -6 => VERSION_ERROR);
+
+   Flate : constant array (Boolean) of Flate_Type
+     := (True  => (Step => Thin.Deflate'Access,
+                   Done => Thin.DeflateEnd'Access),
+         False => (Step => Thin.Inflate'Access,
+                   Done => Thin.InflateEnd'Access));
+
+   Flush_Finish : constant array (Boolean) of Flush_Mode
+     := (True => Finish, False => No_Flush);
+
+   procedure Raise_Error (Stream : Z_Stream);
+   pragma Inline (Raise_Error);
+
+   procedure Raise_Error (Message : String);
+   pragma Inline (Raise_Error);
+
+   procedure Check_Error (Stream : Z_Stream; Code : Thin.Int);
+
+   procedure Free is new Ada.Unchecked_Deallocation
+      (Z_Stream, Z_Stream_Access);
+
+   function To_Thin_Access is new Ada.Unchecked_Conversion
+     (Z_Stream_Access, Thin.Z_Streamp);
+
+   procedure Translate_GZip
+     (Filter    : in out Filter_Type;
+      In_Data   : in     Ada.Streams.Stream_Element_Array;
+      In_Last   :    out Ada.Streams.Stream_Element_Offset;
+      Out_Data  :    out Ada.Streams.Stream_Element_Array;
+      Out_Last  :    out Ada.Streams.Stream_Element_Offset;
+      Flush     : in     Flush_Mode);
+   --  Separate translate routine for make gzip header.
+
+   procedure Translate_Auto
+     (Filter    : in out Filter_Type;
+      In_Data   : in     Ada.Streams.Stream_Element_Array;
+      In_Last   :    out Ada.Streams.Stream_Element_Offset;
+      Out_Data  :    out Ada.Streams.Stream_Element_Array;
+      Out_Last  :    out Ada.Streams.Stream_Element_Offset;
+      Flush     : in     Flush_Mode);
+   --  translate routine without additional headers.
+
+   -----------------
+   -- Check_Error --
+   -----------------
+
+   procedure Check_Error (Stream : Z_Stream; Code : Thin.Int) is
+      use type Thin.Int;
+   begin
+      if Code /= Thin.Z_OK then
+         Raise_Error
+            (Return_Code_Enum'Image (Return_Code (Code))
+              & ": " & Last_Error_Message (Stream));
+      end if;
+   end Check_Error;
+
+   -----------
+   -- Close --
+   -----------
+
+   procedure Close
+     (Filter       : in out Filter_Type;
+      Ignore_Error : in     Boolean := False)
+   is
+      Code : Thin.Int;
+   begin
+      Code := Flate (Filter.Compression).Done
+          (To_Thin_Access (Filter.Strm));
+
+      Filter.Opened := False;
+
+      if Ignore_Error or else Code = Thin.Z_OK then
+         Free (Filter.Strm);
+      else
+         declare
+            Error_Message : constant String
+              := Last_Error_Message (Filter.Strm.all);
+         begin
+            Free (Filter.Strm);
+            Ada.Exceptions.Raise_Exception
+               (ZLib_Error'Identity,
+                Return_Code_Enum'Image (Return_Code (Code))
+                & ": " & Error_Message);
+         end;
+      end if;
+   end Close;
+
+   -----------
+   -- CRC32 --
+   -----------
+
+   function CRC32
+     (CRC  : in Unsigned_32;
+      Data : in Ada.Streams.Stream_Element_Array)
+      return Unsigned_32
+   is
+      use Thin;
+   begin
+      return Unsigned_32 (crc32
+        (ULong (CRC),
+         Bytes.To_Pointer (Data'Address),
+         Data'Length));
+   end CRC32;
+
+   procedure CRC32
+     (CRC  : in out Unsigned_32;
+      Data : in     Ada.Streams.Stream_Element_Array) is
+   begin
+      CRC := CRC32 (CRC, Data);
+   end CRC32;
+
+   ------------------
+   -- Deflate_Init --
+   ------------------
+
+   procedure Deflate_Init
+     (Filter       : in out Filter_Type;
+      Level        : in     Compression_Level  := Default_Compression;
+      Strategy     : in     Strategy_Type      := Default_Strategy;
+      Method       : in     Compression_Method := Deflated;
+      Window_Bits  : in     Window_Bits_Type   := 15;
+      Memory_Level : in     Memory_Level_Type  := 8;
+      Header       : in     Header_Type        := Default)
+   is
+      use type Thin.Int;
+      Win_Bits : Thin.Int := Thin.Int (Window_Bits);
+   begin
+      --  We allow ZLib to make header only in case of default header type.
+      --  Otherwise we would either do header by ourselfs, or do not do
+      --  header at all.
+
+      if Header = None or else Header = GZip then
+         Win_Bits := -Win_Bits;
+      end if;
+
+      --  For the GZip CRC calculation and make headers.
+
+      if Header = GZip then
+         Filter.CRC    := 0;
+         Filter.Offset := Simple_GZip_Header'First;
+      else
+         Filter.Offset := Simple_GZip_Header'Last + 1;
+      end if;
+
+      Filter.Strm := new Z_Stream;
+      Filter.Compression := True;
+      Filter.Stream_End  := False;
+      Filter.Opened      := True;
+      Filter.Header      := Header;
+
+      if Thin.Deflate_Init
+           (To_Thin_Access (Filter.Strm),
+            Level      => Thin.Int (Level),
+            method     => Thin.Int (Method),
+            windowBits => Win_Bits,
+            memLevel   => Thin.Int (Memory_Level),
+            strategy   => Thin.Int (Strategy)) /= Thin.Z_OK
+      then
+         Raise_Error (Filter.Strm.all);
+      end if;
+   end Deflate_Init;
+
+   -----------
+   -- Flush --
+   -----------
+
+   procedure Flush
+     (Filter    : in out Filter_Type;
+      Out_Data  :    out Ada.Streams.Stream_Element_Array;
+      Out_Last  :    out Ada.Streams.Stream_Element_Offset;
+      Flush     : in     Flush_Mode)
+   is
+      No_Data : Stream_Element_Array := (1 .. 0 => 0);
+      Last    : Stream_Element_Offset;
+   begin
+      Translate (Filter, No_Data, Last, Out_Data, Out_Last, Flush);
+   end Flush;
+
+   -----------------------
+   -- Generic_Translate --
+   -----------------------
+
+   procedure Generic_Translate
+     (Filter : in out ZLib.Filter_Type;
+      In_Buffer_Size  : Integer := Default_Buffer_Size;
+      Out_Buffer_Size : Integer := Default_Buffer_Size)
+   is
+      In_Buffer : Stream_Element_Array
+         (1 .. Stream_Element_Offset (In_Buffer_Size));
+      Out_Buffer : Stream_Element_Array
+        (1 .. Stream_Element_Offset (Out_Buffer_Size));
+      Last : Stream_Element_Offset;
+      In_Last : Stream_Element_Offset;
+      In_First : Stream_Element_Offset;
+      Out_Last : Stream_Element_Offset;
+   begin
+      Main : loop
+         Data_In (In_Buffer, Last);
+
+         In_First := In_Buffer'First;
+
+         loop
+            Translate
+              (Filter,
+               In_Buffer (In_First .. Last),
+               In_Last,
+               Out_Buffer,
+               Out_Last,
+               Flush_Finish (Last < In_Buffer'First));
+
+            Data_Out (Out_Buffer (Out_Buffer'First .. Out_Last));
+
+            exit Main when Stream_End (Filter);
+
+            --  The end of in buffer.
+            exit when In_Last = Last;
+
+            In_First := In_Last + 1;
+         end loop;
+      end loop Main;
+
+   end Generic_Translate;
+
+   ------------------
+   -- Inflate_Init --
+   ------------------
+
+   procedure Inflate_Init
+     (Filter      : in out Filter_Type;
+      Window_Bits : in     Window_Bits_Type := 15;
+      Header      : in     Header_Type      := Default)
+   is
+      use type Thin.Int;
+      Win_Bits : Thin.Int := Thin.Int (Window_Bits);
+
+      procedure Check_Version;
+      --  Check the latest header types compatibility.
+
+      procedure Check_Version is
+      begin
+         if Version <= "1.1.4" then
+            Raise_Error
+              ("Inflate header type " & Header_Type'Image (Header)
+               & " incompatible with ZLib version " & Version);
+         end if;
+      end Check_Version;
+
+   begin
+      case Header is
+         when None =>
+            Check_Version;
+
+            --  Inflate data without headers determined
+            --  by negative Win_Bits.
+
+            Win_Bits := -Win_Bits;
+         when GZip =>
+            Check_Version;
+
+            --  Inflate gzip data defined by flag 16.
+
+            Win_Bits := Win_Bits + 16;
+         when Auto =>
+            Check_Version;
+
+            --  Inflate with automatic detection
+            --  of gzip or native header defined by flag 32.
+
+            Win_Bits := Win_Bits + 32;
+         when Default => null;
+      end case;
+
+      Filter.Strm := new Z_Stream;
+      Filter.Compression := False;
+      Filter.Stream_End  := False;
+      Filter.Opened      := True;
+      Filter.Header      := Header;
+
+      if Thin.Inflate_Init
+         (To_Thin_Access (Filter.Strm), Win_Bits) /= Thin.Z_OK
+      then
+         Raise_Error (Filter.Strm.all);
+      end if;
+   end Inflate_Init;
+
+   -----------------
+   -- Raise_Error --
+   -----------------
+
+   procedure Raise_Error (Message : String) is
+   begin
+      Ada.Exceptions.Raise_Exception (ZLib_Error'Identity, Message);
+   end Raise_Error;
+
+   procedure Raise_Error (Stream : Z_Stream) is
+   begin
+      Raise_Error (Last_Error_Message (Stream));
+   end Raise_Error;
+
+   ----------
+   -- Read --
+   ----------
+
+   procedure Read
+     (Filter : in out Filter_Type;
+      Item   :    out Ada.Streams.Stream_Element_Array;
+      Last   :    out Ada.Streams.Stream_Element_Offset)
+   is
+      In_Last    : Stream_Element_Offset;
+      Item_First : Ada.Streams.Stream_Element_Offset := Item'First;
+
+   begin
+      pragma Assert (Rest_First in Buffer'First .. Buffer'Last + 1);
+
+      loop
+         if Rest_First > Buffer'Last then
+            Read (Buffer, Rest_Last);
+            Rest_First := Buffer'First;
+         end if;
+
+         pragma Assert (Rest_Last in Buffer'First - 1 .. Buffer'Last);
+
+         Translate
+           (Filter   => Filter,
+            In_Data  => Buffer (Rest_First .. Rest_Last),
+            In_Last  => In_Last,
+            Out_Data => Item (Item_First .. Item'Last),
+            Out_Last => Last,
+            Flush    => Flush_Finish (Rest_Last < Rest_First));
+
+         Rest_First := In_Last + 1;
+
+         exit when Last = Item'Last or else Stream_End (Filter);
+
+         Item_First := Last + 1;
+      end loop;
+   end Read;
+
+   ----------------
+   -- Stream_End --
+   ----------------
+
+   function Stream_End (Filter : in Filter_Type) return Boolean is
+   begin
+      if Filter.Header = GZip and Filter.Compression then
+         return Filter.Stream_End
+            and then Filter.Offset = Footer_Array'Last + 1;
+      else
+         return Filter.Stream_End;
+      end if;
+   end Stream_End;
+
+   --------------
+   -- Total_In --
+   --------------
+
+   function Total_In (Filter : in Filter_Type) return Count is
+   begin
+      return Count (Thin.Total_In (To_Thin_Access (Filter.Strm).all));
+   end Total_In;
+
+   ---------------
+   -- Total_Out --
+   ---------------
+
+   function Total_Out (Filter : in Filter_Type) return Count is
+   begin
+      return Count (Thin.Total_Out (To_Thin_Access (Filter.Strm).all));
+   end Total_Out;
+
+   ---------------
+   -- Translate --
+   ---------------
+
+   procedure Translate
+     (Filter    : in out Filter_Type;
+      In_Data   : in     Ada.Streams.Stream_Element_Array;
+      In_Last   :    out Ada.Streams.Stream_Element_Offset;
+      Out_Data  :    out Ada.Streams.Stream_Element_Array;
+      Out_Last  :    out Ada.Streams.Stream_Element_Offset;
+      Flush     : in     Flush_Mode) is
+   begin
+      if Filter.Header = GZip and then Filter.Compression then
+         Translate_GZip
+           (Filter   => Filter,
+            In_Data  => In_Data,
+            In_Last  => In_Last,
+            Out_Data => Out_Data,
+            Out_Last => Out_Last,
+            Flush    => Flush);
+      else
+         Translate_Auto
+           (Filter   => Filter,
+            In_Data  => In_Data,
+            In_Last  => In_Last,
+            Out_Data => Out_Data,
+            Out_Last => Out_Last,
+            Flush    => Flush);
+      end if;
+   end Translate;
+
+   --------------------
+   -- Translate_Auto --
+   --------------------
+
+   procedure Translate_Auto
+     (Filter    : in out Filter_Type;
+      In_Data   : in     Ada.Streams.Stream_Element_Array;
+      In_Last   :    out Ada.Streams.Stream_Element_Offset;
+      Out_Data  :    out Ada.Streams.Stream_Element_Array;
+      Out_Last  :    out Ada.Streams.Stream_Element_Offset;
+      Flush     : in     Flush_Mode)
+   is
+      use type Thin.Int;
+      Code : Thin.Int;
+
+   begin
+      if Filter.Opened = False then
+         raise ZLib_Error;
+      end if;
+
+      if Out_Data'Length = 0 then
+         raise Constraint_Error;
+      end if;
+
+      Set_Out (Filter.Strm.all, Out_Data'Address, Out_Data'Length);
+      Set_In  (Filter.Strm.all, In_Data'Address, In_Data'Length);
+
+      Code := Flate (Filter.Compression).Step
+        (To_Thin_Access (Filter.Strm),
+         Thin.Int (Flush));
+
+      if Code = Thin.Z_STREAM_END then
+         Filter.Stream_End := True;
+      else
+         Check_Error (Filter.Strm.all, Code);
+      end if;
+
+      In_Last  := In_Data'Last
+         - Stream_Element_Offset (Avail_In (Filter.Strm.all));
+      Out_Last := Out_Data'Last
+         - Stream_Element_Offset (Avail_Out (Filter.Strm.all));
+
+   end Translate_Auto;
+
+   --------------------
+   -- Translate_GZip --
+   --------------------
+
+   procedure Translate_GZip
+     (Filter    : in out Filter_Type;
+      In_Data   : in     Ada.Streams.Stream_Element_Array;
+      In_Last   :    out Ada.Streams.Stream_Element_Offset;
+      Out_Data  :    out Ada.Streams.Stream_Element_Array;
+      Out_Last  :    out Ada.Streams.Stream_Element_Offset;
+      Flush     : in     Flush_Mode)
+   is
+      Out_First  : Stream_Element_Offset;
+
+      procedure Add_Data (Data : in Stream_Element_Array);
+      --  Add data to stream from the Filter.Offset till necessary,
+      --  used for add gzip headr/footer.
+
+      procedure Put_32
+        (Item : in out Stream_Element_Array;
+         Data : in     Unsigned_32);
+      pragma Inline (Put_32);
+
+      --------------
+      -- Add_Data --
+      --------------
+
+      procedure Add_Data (Data : in Stream_Element_Array) is
+         Data_First : Stream_Element_Offset renames Filter.Offset;
+         Data_Last  : Stream_Element_Offset;
+         Data_Len   : Stream_Element_Offset; --  -1
+         Out_Len    : Stream_Element_Offset; --  -1
+      begin
+         Out_First := Out_Last + 1;
+
+         if Data_First > Data'Last then
+            return;
+         end if;
+
+         Data_Len  := Data'Last     - Data_First;
+         Out_Len   := Out_Data'Last - Out_First;
+
+         if Data_Len <= Out_Len then
+            Out_Last  := Out_First  + Data_Len;
+            Data_Last := Data'Last;
+         else
+            Out_Last  := Out_Data'Last;
+            Data_Last := Data_First + Out_Len;
+         end if;
+
+         Out_Data (Out_First .. Out_Last) := Data (Data_First .. Data_Last);
+
+         Data_First := Data_Last + 1;
+         Out_First  := Out_Last + 1;
+      end Add_Data;
+
+      ------------
+      -- Put_32 --
+      ------------
+
+      procedure Put_32
+        (Item : in out Stream_Element_Array;
+         Data : in     Unsigned_32)
+      is
+         D : Unsigned_32 := Data;
+      begin
+         for J in Item'First .. Item'First + 3 loop
+            Item (J) := Stream_Element (D and 16#FF#);
+            D := Shift_Right (D, 8);
+         end loop;
+      end Put_32;
+
+   begin
+      Out_Last := Out_Data'First - 1;
+
+      if not Filter.Stream_End then
+         Add_Data (Simple_GZip_Header);
+
+         Translate_Auto
+           (Filter => Filter,
+            In_Data  => In_Data,
+            In_Last  => In_Last,
+            Out_Data => Out_Data (Out_First .. Out_Data'Last),
+            Out_Last => Out_Last,
+            Flush    => Flush);
+
+         CRC32 (Filter.CRC, In_Data (In_Data'First .. In_Last));
+
+      end if;
+
+      if Filter.Stream_End and then Out_Last <= Out_Data'Last then
+         --  This detection method would work only when
+         --  Simple_GZip_Header'Last > Footer_Array'Last
+
+         if Filter.Offset = Simple_GZip_Header'Last + 1 then
+            Filter.Offset := Footer_Array'First;
+         end if;
+
+         declare
+            Footer : Footer_Array;
+         begin
+            Put_32 (Footer, Filter.CRC);
+            Put_32 (Footer (Footer'First + 4 .. Footer'Last),
+                    Unsigned_32 (Total_In (Filter)));
+            Add_Data (Footer);
+         end;
+      end if;
+   end Translate_GZip;
+
+   -------------
+   -- Version --
+   -------------
+
+   function Version return String is
+   begin
+      return Interfaces.C.Strings.Value (Thin.zlibVersion);
+   end Version;
+
+   -----------
+   -- Write --
+   -----------
+
+   procedure Write
+     (Filter : in out Filter_Type;
+      Item   : in     Ada.Streams.Stream_Element_Array;
+      Flush  : in     Flush_Mode)
+   is
+      Buffer : Stream_Element_Array (1 .. Buffer_Size);
+      In_Last, Out_Last : Stream_Element_Offset;
+      In_First : Stream_Element_Offset := Item'First;
+   begin
+      if Item'Length = 0 and Flush = No_Flush then
+         return;
+      end if;
+
+      loop
+         Translate
+           (Filter => Filter,
+            In_Data  => Item (In_First .. Item'Last),
+            In_Last  => In_Last,
+            Out_Data => Buffer,
+            Out_Last => Out_Last,
+            Flush    => Flush);
+
+         if Out_Last >= Buffer'First then
+            Write (Buffer (1 .. Out_Last));
+         end if;
+
+         exit when In_Last = Item'Last or Stream_End (Filter);
+
+         In_First := In_Last + 1;
+      end loop;
+   end Write;
+
+end ZLib;

contrib/ada/zlib.ads

@@ -0,0 +1,311 @@
+------------------------------------------------------------------------------
+--                      ZLib for Ada thick binding.                         --
+--                                                                          --
+--              Copyright (C) 2002-2003 Dmitriy Anisimkov                   --
+--                                                                          --
+--  This library is free software; you can redistribute it and/or modify    --
+--  it under the terms of the GNU General Public License as published by    --
+--  the Free Software Foundation; either version 2 of the License, or (at   --
+--  your option) any later version.                                         --
+--                                                                          --
+--  This library is distributed in the hope that it will be useful, but     --
+--  WITHOUT ANY WARRANTY; without even the implied warranty of              --
+--  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU       --
+--  General Public License for more details.                                --
+--                                                                          --
+--  You should have received a copy of the GNU General Public License       --
+--  along with this library; if not, write to the Free Software Foundation, --
+--  Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.          --
+--                                                                          --
+--  As a special exception, if other files instantiate generics from this   --
+--  unit, or you link this unit with other files to produce an executable,  --
+--  this  unit  does not  by itself cause  the resulting executable to be   --
+--  covered by the GNU General Public License. This exception does not      --
+--  however invalidate any other reasons why the executable file  might be  --
+--  covered by the  GNU Public License.                                     --
+------------------------------------------------------------------------------
+
+--  $Id: zlib.ads,v 1.17 2003/08/12 13:19:07 vagul Exp $
+
+with Ada.Streams;
+
+with Interfaces;
+
+package ZLib is
+
+   ZLib_Error : exception;
+
+   type Compression_Level is new Integer range -1 .. 9;
+
+   type Flush_Mode is private;
+
+   type Compression_Method is private;
+
+   type Window_Bits_Type is new Integer range 8 .. 15;
+
+   type Memory_Level_Type is new Integer range 1 .. 9;
+
+   type Unsigned_32 is new Interfaces.Unsigned_32;
+
+   type Strategy_Type is private;
+
+   type Header_Type is (None, Auto, Default, GZip);
+   --  Header type usage have a some limitation for inflate.
+   --  See comment for Inflate_Init.
+
+   subtype Count is Ada.Streams.Stream_Element_Count;
+
+   ----------------------------------
+   -- Compression method constants --
+   ----------------------------------
+
+   Deflated : constant Compression_Method;
+   --  Only one method allowed in this ZLib version.
+
+   ---------------------------------
+   -- Compression level constants --
+   ---------------------------------
+
+   No_Compression      : constant Compression_Level := 0;
+   Best_Speed          : constant Compression_Level := 1;
+   Best_Compression    : constant Compression_Level := 9;
+   Default_Compression : constant Compression_Level := -1;
+
+   --------------------------
+   -- Flush mode constants --
+   --------------------------
+
+   No_Flush      : constant Flush_Mode;
+   --  Regular way for compression, no flush
+
+   Partial_Flush : constant Flush_Mode;
+   --  will be removed, use Z_SYNC_FLUSH instead
+
+   Sync_Flush    : constant Flush_Mode;
+   --  all pending output is flushed to the output buffer and the output
+   --  is aligned on a byte boundary, so that the decompressor can get all
+   --  input data available so far. (In particular avail_in is zero after the
+   --  call if enough output space has been provided  before the call.)
+   --  Flushing may degrade compression for some compression algorithms and so
+   --  it should be used only when necessary.
+
+   Full_Flush    : constant Flush_Mode;
+   --  all output is flushed as with SYNC_FLUSH, and the compression state
+   --  is reset so that decompression can restart from this point if previous
+   --  compressed data has been damaged or if random access is desired. Using
+   --  FULL_FLUSH too often can seriously degrade the compression.
+
+   Finish        : constant Flush_Mode;
+   --  Just for tell the compressor that input data is complete.
+
+   ------------------------------------
+   -- Compression strategy constants --
+   ------------------------------------
+
+   --  RLE stategy could be used only in version 1.2.0 and later.
+
+   Filtered         : constant Strategy_Type;
+   Huffman_Only     : constant Strategy_Type;
+   RLE              : constant Strategy_Type;
+   Default_Strategy : constant Strategy_Type;
+
+   Default_Buffer_Size : constant := 4096;
+
+   type Filter_Type is limited private;
+   --  The filter is for compression and for decompression.
+   --  The usage of the type is depend of its initialization.
+
+   function Version return String;
+   pragma Inline (Version);
+   --  Return string representation of the ZLib version.
+
+   procedure Deflate_Init
+     (Filter       : in out Filter_Type;
+      Level        : in     Compression_Level  := Default_Compression;
+      Strategy     : in     Strategy_Type      := Default_Strategy;
+      Method       : in     Compression_Method := Deflated;
+      Window_Bits  : in     Window_Bits_Type   := 15;
+      Memory_Level : in     Memory_Level_Type  := 8;
+      Header       : in     Header_Type        := Default);
+   --  Compressor initialization.
+   --  When Header parameter is Auto or Default, then default zlib header
+   --  would be provided for compressed data.
+   --  When Header is GZip, then gzip header would be set instead of
+   --  default header.
+   --  When Header is None, no header would be set for compressed data.
+
+   procedure Inflate_Init
+     (Filter      : in out Filter_Type;
+      Window_Bits : in     Window_Bits_Type := 15;
+      Header      : in     Header_Type      := Default);
+   --  Decompressor initialization.
+   --  Default header type mean that ZLib default header is expecting in the
+   --  input compressed stream.
+   --  Header type None mean that no header is expecting in the input stream.
+   --  GZip header type mean that GZip header is expecting in the
+   --  input compressed stream.
+   --  Auto header type mean that header type (GZip or Native) would be
+   --  detected automatically in the input stream.
+   --  Note that header types parameter values None, GZip and Auto is
+   --  supporting for inflate routine only in ZLib versions 1.2.0.2 and later.
+   --  Deflate_Init is supporting all header types.
+
+   procedure Close
+     (Filter       : in out Filter_Type;
+      Ignore_Error : in     Boolean := False);
+   --  Closing the compression or decompressor.
+   --  If stream is closing before the complete and Ignore_Error is False,
+   --  The exception would be raised.
+
+   generic
+      with procedure Data_In
+        (Item : out Ada.Streams.Stream_Element_Array;
+         Last : out Ada.Streams.Stream_Element_Offset);
+      with procedure Data_Out
+        (Item : in Ada.Streams.Stream_Element_Array);
+   procedure Generic_Translate
+     (Filter          : in out Filter_Type;
+      In_Buffer_Size  : in     Integer := Default_Buffer_Size;
+      Out_Buffer_Size : in     Integer := Default_Buffer_Size);
+   --  Compressing/decompressing data arrived from Data_In routine
+   --  to the Data_Out routine. User should provide Data_In and Data_Out
+   --  for compression/decompression data flow.
+   --  Compression or decompression depend on initialization of Filter.
+
+   function Total_In (Filter : in Filter_Type) return Count;
+   pragma Inline (Total_In);
+   --  Return total number of input bytes read so far.
+
+   function Total_Out (Filter : in Filter_Type) return Count;
+   pragma Inline (Total_Out);
+   --  Return total number of bytes output so far.
+
+   function CRC32
+     (CRC    : in Unsigned_32;
+      Data   : in Ada.Streams.Stream_Element_Array)
+      return Unsigned_32;
+   pragma Inline (CRC32);
+   --  Calculate CRC32, it could be necessary for make gzip format.
+
+   procedure CRC32
+     (CRC  : in out Unsigned_32;
+      Data : in     Ada.Streams.Stream_Element_Array);
+   pragma Inline (CRC32);
+   --  Calculate CRC32, it could be necessary for make gzip format.
+
+   -------------------------------------------------
+   --  Below is more complex low level routines.  --
+   -------------------------------------------------
+
+   procedure Translate
+     (Filter    : in out Filter_Type;
+      In_Data   : in     Ada.Streams.Stream_Element_Array;
+      In_Last   :    out Ada.Streams.Stream_Element_Offset;
+      Out_Data  :    out Ada.Streams.Stream_Element_Array;
+      Out_Last  :    out Ada.Streams.Stream_Element_Offset;
+      Flush     : in     Flush_Mode);
+   --  Compressing/decompressing the datas from In_Data buffer to the
+   --  Out_Data buffer.
+   --  In_Data is incoming data portion,
+   --  In_Last is the index of last element from In_Data accepted by the
+   --  Filter.
+   --  Out_Data is the buffer for output data from the filter.
+   --  Out_Last is the last element of the received data from Filter.
+   --  To tell the filter that incoming data is complete put the
+   --  Flush parameter to FINISH.
+
+   function Stream_End (Filter : in Filter_Type) return Boolean;
+   pragma Inline (Stream_End);
+   --  Return the true when the stream is complete.
+
+   procedure Flush
+     (Filter    : in out Filter_Type;
+      Out_Data  :    out Ada.Streams.Stream_Element_Array;
+      Out_Last  :    out Ada.Streams.Stream_Element_Offset;
+      Flush     : in     Flush_Mode);
+   pragma Inline (Flush);
+   --  Flushing the data from the compressor.
+
+   generic
+      with procedure Write
+        (Item : in Ada.Streams.Stream_Element_Array);
+      --  User should provide this routine for accept
+      --  compressed/decompressed data.
+
+      Buffer_Size : in Ada.Streams.Stream_Element_Offset
+         := Default_Buffer_Size;
+      --  Buffer size for Write user routine.
+
+   procedure Write
+     (Filter  : in out Filter_Type;
+      Item    : in     Ada.Streams.Stream_Element_Array;
+      Flush   : in     Flush_Mode);
+   --  Compressing/Decompressing data from Item to the
+   --  generic parameter procedure Write.
+   --  Output buffer size could be set in Buffer_Size generic parameter.
+
+   generic
+      with procedure Read
+        (Item : out Ada.Streams.Stream_Element_Array;
+         Last : out Ada.Streams.Stream_Element_Offset);
+      --  User should provide data for compression/decompression
+      --  thru this routine.
+
+      Buffer : in out Ada.Streams.Stream_Element_Array;
+      --  Buffer for keep remaining data from the previous
+      --  back read.
+
+      Rest_First, Rest_Last : in out Ada.Streams.Stream_Element_Offset;
+      --  Rest_First have to be initialized to Buffer'Last + 1
+      --  before usage.
+
+   procedure Read
+     (Filter : in out Filter_Type;
+      Item   :    out Ada.Streams.Stream_Element_Array;
+      Last   :    out Ada.Streams.Stream_Element_Offset);
+   --  Compressing/Decompressing data from generic parameter
+   --  procedure Read to the Item.
+   --  User should provide Buffer for the operation
+   --  and Rest_First variable first time initialized to the Buffer'Last + 1.
+
+private
+
+   use Ada.Streams;
+
+   type Flush_Mode is new Integer range 0 .. 4;
+
+   type Compression_Method is new Integer range 8 .. 8;
+
+   type Strategy_Type is new Integer range 0 .. 3;
+
+   No_Flush      : constant Flush_Mode := 0;
+   Sync_Flush    : constant Flush_Mode := 2;
+   Full_Flush    : constant Flush_Mode := 3;
+   Finish        : constant Flush_Mode := 4;
+   Partial_Flush : constant Flush_Mode := 1;
+   --  will be removed, use Z_SYNC_FLUSH instead
+
+   Filtered         : constant Strategy_Type := 1;
+   Huffman_Only     : constant Strategy_Type := 2;
+   RLE              : constant Strategy_Type := 3;
+   Default_Strategy : constant Strategy_Type := 0;
+
+   Deflated : constant Compression_Method := 8;
+
+   type Z_Stream;
+
+   type Z_Stream_Access is access all Z_Stream;
+
+   type Filter_Type is record
+      Strm        : Z_Stream_Access;
+      Compression : Boolean;
+      Stream_End  : Boolean;
+      Header      : Header_Type;
+      CRC         : Unsigned_32;
+      Offset      : Stream_Element_Offset;
+      --  Offset for gzip header/footer output.
+
+      Opened      : Boolean := False;
+   end record;
+
+end ZLib;

contrib/ada/zlib.gpr

@@ -0,0 +1,21 @@
+project Zlib is
+
+   for Languages use ("Ada");
+   for Source_Dirs use (".");
+   for Object_Dir use ".";
+   for Main use ("test.adb", "mtest.adb", "read.adb");
+
+   package Compiler is
+      for Default_Switches ("ada") use ("-gnatwbcfilopru", "-gnatVcdfimorst", "-gnatyabcefhiklmnoprst");
+   end Compiler;
+
+   package Linker is
+      for Default_Switches ("ada") use ("-lz");
+   end Linker;
+
+   package Builder is
+      for Default_Switches ("ada") use ("-s", "-gnatQ");
+   end Builder;
+
+end Zlib;
+

contrib/asm386/gvmat32.asm

@@ -1,559 +0,0 @@
-;
-; 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  match_init
-ELSE
-                        public  _longest_match_7fff
-;                        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
-
-
-	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<61>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<61>t toggle ID bit,
-	je		is_old_486		; processor=old
-
-	mov     eax,1
-	db      0fh,0a2h        ;CPUID   
-
-exitcpudetect:
-	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
-
-_TEXT   ends
-end

contrib/asm386/gvmat32c.c

@@ -1,200 +0,0 @@
-/* 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
-#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(
-    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==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 */

contrib/asm386/mkgvmt32.bat

@@ -1 +0,0 @@
-c:\masm611\bin\ml /coff /Zi /c /Flgvmat32.lst gvmat32.asm

contrib/asm386/zlibvc.def

@@ -1,74 +0,0 @@
-LIBRARY		"zlib"
-
-DESCRIPTION	'"""zlib data compression library"""'
-
-
-VERSION		1.11
-
-
-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
-
-	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

contrib/asm386/zlibvc.dsp

@@ -1,651 +0,0 @@
-# Microsoft Developer Studio Project File - Name="zlibvc" - Package Owner=<4>
-# Microsoft Developer Studio Generated Build File, Format Version 5.00
-# ** DO NOT EDIT **
-
-# TARGTYPE "Win32 (x86) Dynamic-Link Library" 0x0102
-# TARGTYPE "Win32 (ALPHA) Dynamic-Link Library" 0x0602
-
-CFG=zlibvc - Win32 Release
-!MESSAGE This is not a valid makefile. To build this project using NMAKE,
-!MESSAGE use the Export Makefile command and run
-!MESSAGE 
-!MESSAGE NMAKE /f "zlibvc.mak".
-!MESSAGE 
-!MESSAGE You can specify a configuration when running NMAKE
-!MESSAGE by defining the macro CFG on the command line. For example:
-!MESSAGE 
-!MESSAGE NMAKE /f "zlibvc.mak" CFG="zlibvc - Win32 Release"
-!MESSAGE 
-!MESSAGE Possible choices for configuration are:
-!MESSAGE 
-!MESSAGE "zlibvc - Win32 Release" (based on "Win32 (x86) Dynamic-Link Library")
-!MESSAGE "zlibvc - Win32 Debug" (based on "Win32 (x86) Dynamic-Link Library")
-!MESSAGE "zlibvc - Win32 ReleaseAxp" (based on\
- "Win32 (ALPHA) Dynamic-Link Library")
-!MESSAGE "zlibvc - Win32 ReleaseWithoutAsm" (based on\
- "Win32 (x86) Dynamic-Link Library")
-!MESSAGE "zlibvc - Win32 ReleaseWithoutCrtdll" (based on\
- "Win32 (x86) Dynamic-Link Library")
-!MESSAGE 
-
-# Begin Project
-# PROP Scc_ProjName ""
-# PROP Scc_LocalPath ""
-
-!IF  "$(CFG)" == "zlibvc - Win32 Release"
-
-# PROP BASE Use_MFC 0
-# PROP BASE Use_Debug_Libraries 0
-# PROP BASE Output_Dir ".\Release"
-# PROP BASE Intermediate_Dir ".\Release"
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-# PROP Use_Debug_Libraries 0
-# PROP Output_Dir ".\Release"
-# PROP Intermediate_Dir ".\Release"
-# PROP Ignore_Export_Lib 0
-# PROP Target_Dir ""
-CPP=cl.exe
-# ADD BASE CPP /nologo /MT /W3 /GX /O2 /D "WIN32" /D "NDEBUG" /D "_WINDOWS" /YX /c
-# ADD CPP /nologo /MT /W3 /GX /O2 /D "NDEBUG" /D "WIN32" /D "_WINDOWS" /D "_WINDLL" /D "_WIN32" /D "BUILD_ZLIBDLL" /D "ZLIB_DLL" /D "DYNAMIC_CRC_TABLE" /D "ASMV" /FAcs /FR /FD /c
-# SUBTRACT CPP /YX
-MTL=midl.exe
-# ADD BASE MTL /nologo /D "NDEBUG" /win32
-# ADD MTL /nologo /D "NDEBUG" /mktyplib203 /win32
-RSC=rc.exe
-# ADD BASE RSC /l 0x40c /d "NDEBUG"
-# ADD RSC /l 0x40c /d "NDEBUG"
-BSC32=bscmake.exe
-# ADD BASE BSC32 /nologo
-# ADD BSC32 /nologo
-LINK32=link.exe
-# ADD BASE LINK32 kernel32.lib user32.lib gdi32.lib winspool.lib comdlg32.lib advapi32.lib shell32.lib ole32.lib oleaut32.lib uuid.lib odbc32.lib odbccp32.lib /nologo /subsystem:windows /dll /machine:I386
-# ADD LINK32 gvmat32.obj kernel32.lib user32.lib gdi32.lib winspool.lib comdlg32.lib advapi32.lib shell32.lib ole32.lib oleaut32.lib uuid.lib crtdll.lib /nologo /subsystem:windows /dll /map /machine:I386 /nodefaultlib /out:".\Release\zlib.dll"
-# SUBTRACT LINK32 /pdb:none
-
-!ELSEIF  "$(CFG)" == "zlibvc - Win32 Debug"
-
-# PROP BASE Use_MFC 0
-# PROP BASE Use_Debug_Libraries 1
-# PROP BASE Output_Dir ".\Debug"
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-CPP=cl.exe
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-MTL=midl.exe
-# ADD BASE MTL /nologo /D "_DEBUG" /win32
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-# ADD LINK32 kernel32.lib user32.lib gdi32.lib winspool.lib comdlg32.lib advapi32.lib shell32.lib ole32.lib oleaut32.lib uuid.lib /nologo /subsystem:windows /dll /debug /machine:I386 /out:".\Debug\zlib.dll"
-
-!ELSEIF  "$(CFG)" == "zlibvc - Win32 ReleaseAxp"
-
-# PROP BASE Use_MFC 0
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-# PROP BASE Output_Dir "zlibvc__"
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-# ADD BASE CPP /nologo /MT /Gt0 /W3 /GX /O2 /D "WIN32" /D "NDEBUG" /D "_WINDOWS" /D "_WIN32" /D "BUILD_ZLIBDLL" /D "ZLIB_DLL" /D "DYNAMIC_CRC_TABLE" /FAcs /FR /YX /FD /c
-# ADD CPP /nologo /MT /Gt0 /W3 /GX /O2 /D "WIN32" /D "NDEBUG" /D "_WINDOWS" /D "_WIN32" /D "BUILD_ZLIBDLL" /D "ZLIB_DLL" /D "DYNAMIC_CRC_TABLE" /FAcs /FR /FD /c
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-RSC=rc.exe
-# ADD BASE RSC /l 0x40c /d "NDEBUG"
-# ADD RSC /l 0x40c /d "NDEBUG"
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-# ADD BASE BSC32 /nologo
-# ADD BSC32 /nologo
-LINK32=link.exe
-# ADD BASE LINK32 crtdll.lib kernel32.lib user32.lib gdi32.lib winspool.lib comdlg32.lib advapi32.lib shell32.lib ole32.lib oleaut32.lib uuid.lib /nologo /subsystem:windows /dll /map /machine:ALPHA /nodefaultlib /out:".\Release\zlib.dll"
-# SUBTRACT BASE LINK32 /pdb:none
-# ADD LINK32 crtdll.lib kernel32.lib user32.lib gdi32.lib winspool.lib comdlg32.lib advapi32.lib shell32.lib ole32.lib oleaut32.lib uuid.lib /nologo /subsystem:windows /dll /map /machine:ALPHA /nodefaultlib /out:"zlibvc__\zlib.dll"
-# SUBTRACT LINK32 /pdb:none
-
-!ELSEIF  "$(CFG)" == "zlibvc - Win32 ReleaseWithoutAsm"
-
-# PROP BASE Use_MFC 0
-# PROP BASE Use_Debug_Libraries 0
-# PROP BASE Output_Dir "zlibvc_0"
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-# ADD BASE CPP /nologo /MT /W3 /GX /O2 /D "NDEBUG" /D "WIN32" /D "_WINDOWS" /D "_WINDLL" /D "_WIN32" /D "BUILD_ZLIBDLL" /D "ZLIB_DLL" /D "DYNAMIC_CRC_TABLE" /FAcs /FR /YX /FD /c
-# ADD CPP /nologo /MT /W3 /GX /O2 /D "NDEBUG" /D "WIN32" /D "_WINDOWS" /D "_WINDLL" /D "_WIN32" /D "BUILD_ZLIBDLL" /D "ZLIB_DLL" /D "DYNAMIC_CRC_TABLE" /FAcs /FR /FD /c
-# SUBTRACT CPP /YX
-MTL=midl.exe
-# ADD BASE MTL /nologo /D "NDEBUG" /mktyplib203 /win32
-# ADD MTL /nologo /D "NDEBUG" /mktyplib203 /win32
-RSC=rc.exe
-# ADD BASE RSC /l 0x40c /d "NDEBUG"
-# ADD RSC /l 0x40c /d "NDEBUG"
-BSC32=bscmake.exe
-# ADD BASE BSC32 /nologo
-# ADD BSC32 /nologo
-LINK32=link.exe
-# ADD BASE LINK32 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 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_0\zlib.dll"
-# SUBTRACT LINK32 /pdb:none
-
-!ELSEIF  "$(CFG)" == "zlibvc - Win32 ReleaseWithoutCrtdll"
-
-# PROP BASE Use_MFC 0
-# PROP BASE Use_Debug_Libraries 0
-# PROP BASE Output_Dir "zlibvc_1"
-# PROP BASE Intermediate_Dir "zlibvc_1"
-# PROP BASE Ignore_Export_Lib 0
-# PROP BASE Target_Dir ""
-# PROP Use_MFC 0
-# PROP Use_Debug_Libraries 0
-# PROP Output_Dir "zlibvc_1"
-# PROP Intermediate_Dir "zlibvc_1"
-# PROP Ignore_Export_Lib 0
-# PROP Target_Dir ""
-CPP=cl.exe
-# ADD BASE CPP /nologo /MT /W3 /GX /O2 /D "NDEBUG" /D "WIN32" /D "_WINDOWS" /D "_WINDLL" /D "_WIN32" /D "BUILD_ZLIBDLL" /D "ZLIB_DLL" /D "DYNAMIC_CRC_TABLE" /D "ASMV" /FAcs /FR /YX /FD /c
-# ADD CPP /nologo /MT /W3 /GX /O2 /D "NDEBUG" /D "WIN32" /D "_WINDOWS" /D "_WINDLL" /D "_WIN32" /D "BUILD_ZLIBDLL" /D "ZLIB_DLL" /D "DYNAMIC_CRC_TABLE" /D "ASMV" /FAcs /FR /FD /c
-# SUBTRACT CPP /YX
-MTL=midl.exe
-# ADD BASE MTL /nologo /D "NDEBUG" /mktyplib203 /win32
-# ADD MTL /nologo /D "NDEBUG" /mktyplib203 /win32
-RSC=rc.exe
-# ADD BASE RSC /l 0x40c /d "NDEBUG"
-# ADD RSC /l 0x40c /d "NDEBUG"
-BSC32=bscmake.exe
-# ADD BASE BSC32 /nologo
-# ADD BSC32 /nologo
-LINK32=link.exe
-# 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

contrib/asm386/zlibvc.dsw

@@ -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>
-{{{
-}}}
-
-###############################################################################
-

contrib/delphi/ZLib.pas

@@ -1,33 +1,33 @@
 {*******************************************************}
 {                                                       }
-{       Delphi Supplemental Components                  }
+{       Borland Delphi Supplemental Components          }
 {       ZLIB Data Compression Interface Unit            }
 {                                                       }
-{       Copyright (c) 1997 Borland International        }
+{       Copyright (c) 1997,99 Borland Corporation       }
 {                                                       }
 {*******************************************************}
 
-{ Modified for zlib 1.1.3 by Davide Moretti <dave@rimini.com }
+{ Updated for zlib 1.2.x by Cosmin Truta <cosmint@cs.ubbcluj.ro> }
 
-unit zlib;
+unit ZLib;
 
 interface
 
-uses Sysutils, Classes;
+uses SysUtils, Classes;
 
 type
-  TAlloc = function (AppData: Pointer; Items, Size: Integer): Pointer;
+  TAlloc = function (AppData: Pointer; Items, Size: Integer): Pointer; cdecl;
-  TFree = procedure (AppData, Block: Pointer);
+  TFree = procedure (AppData, Block: Pointer); cdecl;
 
   // Internal structure.  Ignore.
   TZStreamRec = packed record
     next_in: PChar;       // next input byte
     avail_in: Integer;    // number of bytes available at next_in
-    total_in: Integer;    // total nb of input bytes read so far
+    total_in: Longint;    // total nb of input bytes read so far
 
     next_out: PChar;      // next output byte should be put here
     avail_out: Integer;   // remaining free space at next_out
-    total_out: Integer;   // total nb of bytes output so far
+    total_out: Longint;   // total nb of bytes output so far
 
     msg: PChar;           // last error message, NULL if no error
     internal: Pointer;    // not visible by applications
@@ -37,8 +37,8 @@ type
     AppData: Pointer;     // private data object passed to zalloc and zfree
 
     data_type: Integer;   // best guess about the data type: ascii or binary
-    adler: Integer;       // adler32 value of the uncompressed data
+    adler: Longint;       // adler32 value of the uncompressed data
-    reserved: Integer;    // reserved for future use
+    reserved: Longint;    // reserved for future use
   end;
 
   // Abstract ancestor class
@@ -143,18 +143,26 @@ procedure CompressBuf(const InBuf: Pointer; InBytes: Integer;
 procedure DecompressBuf(const InBuf: Pointer; InBytes: Integer;
  OutEstimate: Integer; out OutBuf: Pointer; out OutBytes: Integer);
 
+{ DecompressToUserBuf decompresses data, buffer to buffer, in one call.
+   In: InBuf = ptr to compressed data
+       InBytes = number of bytes in InBuf
+  Out: OutBuf = ptr to user-allocated buffer to contain decompressed data
+       BufSize = number of bytes in OutBuf   }
+procedure DecompressToUserBuf(const InBuf: Pointer; InBytes: Integer;
+  const OutBuf: Pointer; BufSize: Integer);
+
 const
-  zlib_version = '1.1.3';
+  zlib_version = '1.2.0';
 
 type
   EZlibError = class(Exception);
   ECompressionError = class(EZlibError);
   EDecompressionError = class(EZlibError);
 
-function adler32(adler: Integer; buf: PChar; len: Integer): Integer;
-
 implementation
 
+uses ZLibConst;
+
 const
   Z_NO_FLUSH      = 0;
   Z_PARTIAL_FLUSH = 1;
@@ -179,6 +187,7 @@ const
 
   Z_FILTERED            = 1;
   Z_HUFFMAN_ONLY        = 2;
+  Z_RLE                 = 3;
   Z_DEFAULT_STRATEGY    = 0;
 
   Z_BINARY   = 0;
@@ -187,56 +196,41 @@ const
 
   Z_DEFLATED = 8;
 
-  _z_errmsg: array[0..9] of PChar = (
-    'need dictionary',      // Z_NEED_DICT      (2)
-    'stream end',           // Z_STREAM_END     (1)
-    '',                     // Z_OK             (0)
-    'file error',           // Z_ERRNO          (-1)
-    'stream error',         // Z_STREAM_ERROR   (-2)
-    'data error',           // Z_DATA_ERROR     (-3)
-    'insufficient memory',  // Z_MEM_ERROR      (-4)
-    'buffer error',         // Z_BUF_ERROR      (-5)
-    'incompatible version', // Z_VERSION_ERROR  (-6)
-    ''
-  );
 
+{$L adler32.obj}
+{$L compress.obj}
+{$L crc32.obj}
 {$L deflate.obj}
+{$L infback.obj}
+{$L inffast.obj}
 {$L inflate.obj}
 {$L inftrees.obj}
 {$L trees.obj}
-{$L adler32.obj}
+{$L uncompr.obj}
-{$L infblock.obj}
+{$L zutil.obj}
-{$L infcodes.obj}
-{$L infutil.obj}
-{$L inffast.obj}
 
-procedure _tr_init; external;
+procedure adler32; external;
-procedure _tr_tally; external;
+procedure compressBound; external;
-procedure _tr_flush_block; external;
+procedure crc32; external;
-procedure _tr_align; external;
+procedure deflateInit2_; external;
-procedure _tr_stored_block; external;
+procedure deflateParams; external;
-function adler32; external;
-procedure inflate_blocks_new; external;
-procedure inflate_blocks; external;
-procedure inflate_blocks_reset; external;
-procedure inflate_blocks_free; external;
-procedure inflate_set_dictionary; external;
-procedure inflate_trees_bits; external;
-procedure inflate_trees_dynamic; external;
-procedure inflate_trees_fixed; external;
-procedure inflate_codes_new; external;
-procedure inflate_codes; external;
-procedure inflate_codes_free; external;
-procedure _inflate_mask; external;
-procedure inflate_flush; external;
-procedure inflate_fast; external;
 
-procedure _memset(P: Pointer; B: Byte; count: Integer);cdecl;
+function _malloc(Size: Integer): Pointer; cdecl;
+begin
+  Result := AllocMem(Size);
+end;
+
+procedure _free(Block: Pointer); cdecl;
+begin
+  FreeMem(Block);
+end;
+
+procedure _memset(P: Pointer; B: Byte; count: Integer); cdecl;
 begin
   FillChar(P^, count, B);
 end;
 
-procedure _memcpy(dest, source: Pointer; count: Integer);cdecl;
+procedure _memcpy(dest, source: Pointer; count: Integer); cdecl;
 begin
   Move(source^, dest^, count);
 end;
@@ -257,22 +251,23 @@ function inflateEnd(var strm: TZStreamRec): Integer; external;
 function inflateReset(var strm: TZStreamRec): Integer; external;
 
 
-function zcalloc(AppData: Pointer; Items, Size: Integer): Pointer;
+function zlibAllocMem(AppData: Pointer; Items, Size: Integer): Pointer; cdecl;
 begin
-  GetMem(Result, Items*Size);
+//  GetMem(Result, Items*Size);
+  Result := AllocMem(Items * Size);
 end;
 
-procedure zcfree(AppData, Block: Pointer);
+procedure zlibFreeMem(AppData, Block: Pointer); cdecl;
 begin
   FreeMem(Block);
 end;
 
-function zlibCheck(code: Integer): Integer;
+{function zlibCheck(code: Integer): Integer;
 begin
   Result := code;
   if code < 0 then
     raise EZlibError.Create('error');    //!!
-end;
+end;}
 
 function CCheck(code: Integer): Integer;
 begin
@@ -295,6 +290,8 @@ var
   P: Pointer;
 begin
   FillChar(strm, sizeof(strm), 0);
+  strm.zalloc := zlibAllocMem;
+  strm.zfree := zlibFreeMem;
   OutBytes := ((InBytes + (InBytes div 10) + 12) + 255) and not 255;
   GetMem(OutBuf, OutBytes);
   try
@@ -332,6 +329,8 @@ var
   BufInc: Integer;
 begin
   FillChar(strm, sizeof(strm), 0);
+  strm.zalloc := zlibAllocMem;
+  strm.zfree := zlibFreeMem;
   BufInc := (InBytes + 255) and not 255;
   if OutEstimate = 0 then
     OutBytes := BufInc
@@ -364,6 +363,26 @@ begin
   end;
 end;
 
+procedure DecompressToUserBuf(const InBuf: Pointer; InBytes: Integer;
+  const OutBuf: Pointer; BufSize: Integer);
+var
+  strm: TZStreamRec;
+begin
+  FillChar(strm, sizeof(strm), 0);
+  strm.zalloc := zlibAllocMem;
+  strm.zfree := zlibFreeMem;
+  strm.next_in := InBuf;
+  strm.avail_in := InBytes;
+  strm.next_out := OutBuf;
+  strm.avail_out := BufSize;
+  DCheck(inflateInit_(strm, zlib_version, sizeof(strm)));
+  try
+    if DCheck(inflate(strm, Z_FINISH)) <> Z_STREAM_END then
+      raise EZlibError.CreateRes(@sTargetBufferTooSmall);
+  finally
+    DCheck(inflateEnd(strm));
+  end;
+end;
 
 // TCustomZlibStream
 
@@ -372,6 +391,8 @@ begin
   inherited Create;
   FStrm := Strm;
   FStrmPos := Strm.Position;
+  FZRec.zalloc := zlibAllocMem;
+  FZRec.zfree := zlibFreeMem;
 end;
 
 procedure TCustomZLibStream.Progress(Sender: TObject);
@@ -417,7 +438,7 @@ end;
 
 function TCompressionStream.Read(var Buffer; Count: Longint): Longint;
 begin
-  raise ECompressionError.Create('Invalid stream operation');
+  raise ECompressionError.CreateRes(@sInvalidStreamOp);
 end;
 
 function TCompressionStream.Write(const Buffer; Count: Longint): Longint;
@@ -445,7 +466,7 @@ begin
   if (Offset = 0) and (Origin = soFromCurrent) then
     Result := FZRec.total_in
   else
-    raise ECompressionError.Create('Invalid stream operation');
+    raise ECompressionError.CreateRes(@sInvalidStreamOp);
 end;
 
 function TCompressionStream.GetCompressionRate: Single;
@@ -469,6 +490,7 @@ end;
 
 destructor TDecompressionStream.Destroy;
 begin
+  FStrm.Seek(-FZRec.avail_in, 1);
   inflateEnd(FZRec);
   inherited Destroy;
 end;
@@ -492,14 +514,14 @@ begin
       FStrmPos := FStrm.Position;
       Progress(Self);
     end;
-    DCheck(inflate(FZRec, 0));
+    CCheck(inflate(FZRec, 0));
   end;
   Result := Count;
 end;
 
 function TDecompressionStream.Write(const Buffer; Count: Longint): Longint;
 begin
-  raise EDecompressionError.Create('Invalid stream operation');
+  raise EDecompressionError.CreateRes(@sInvalidStreamOp);
 end;
 
 function TDecompressionStream.Seek(Offset: Longint; Origin: Word): Longint;
@@ -527,8 +549,9 @@ begin
     end;
   end
   else
-    raise EDecompressionError.Create('Invalid stream operation');
+    raise EDecompressionError.CreateRes(@sInvalidStreamOp);
   Result := FZRec.total_out;
 end;
 
+
 end.

contrib/delphi/ZLibConst.pas

@@ -0,0 +1,11 @@
+unit ZLibConst;
+
+interface
+
+resourcestring
+  sTargetBufferTooSmall = 'ZLib error: target buffer may be too small';
+  sInvalidStreamOp = 'Invalid stream operation';
+
+implementation
+
+end.

contrib/delphi/readme.txt

@@ -0,0 +1,76 @@
+
+Overview
+========
+
+This directory contains an update to the ZLib interface unit,
+distributed by Borland as a Delphi supplemental component.
+
+The original ZLib unit is Copyright (c) 1997,99 Borland Corp.,
+and is based on zlib version 1.0.4.  There are a series of bugs
+and security problems associated with that old zlib version, and
+we recommend the users to update their ZLib unit.
+
+
+Summary of modifications
+========================
+
+- Improved makefile, adapted to zlib version 1.2.0.
+
+- Some field types from TZStreamRec are changed from Integer to
+  Longint, for consistency with the zlib.h header, and for 64-bit
+  readiness.
+
+- The zlib_version constant is updated.
+
+- The new Z_RLE strategy has its corresponding symbolic constant.
+
+- The allocation and deallocation functions and function types
+  (TAlloc, TFree, zlibAllocMem and zlibFreeMem) are now cdecl,
+  and _malloc and _free are added as C RTL stubs.  As a result,
+  the original C sources of zlib can be compiled out of the box,
+  and linked to the ZLib unit.
+
+
+Suggestions for improvements
+============================
+
+Currently, the ZLib unit provides only a limited wrapper around
+the zlib library, and much of the original zlib functionality is
+missing.  Handling compressed file formats like ZIP/GZIP or PNG
+cannot be implemented without having this functionality.
+Applications that handle these formats are either using their own,
+duplicated code, or not using the ZLib unit at all.
+
+Here are a few suggestions:
+
+- Checksum class wrappers around adler32() and crc32(), similar
+  to the Java classes that implement the java.util.zip.Checksum
+  interface.
+
+- The ability to read and write raw deflate streams, without the
+  zlib stream header and trailer.  Raw deflate streams are used
+  in the ZIP file format.
+
+- The ability to read and write gzip streams, used in the GZIP
+  file format, and normally produced by the gzip program.
+
+- The ability to select a different compression strategy, useful
+  to PNG and MNG image compression, and to multimedia compression
+  in general.  Besides the compression level
+
+    TCompressionLevel = (clNone, clFastest, clDefault, clMax);
+
+  which, in fact, could have used the 'z' prefix and avoided
+  TColor-like symbols
+
+    TCompressionLevel = (zcNone, zcFastest, zcDefault, zcMax);
+
+  there could be a compression strategy
+
+    TCompressionStrategy = (zsDefault, zsFiltered, zsHuffmanOnly, zsRle);
+
+- ZIP and GZIP stream handling via TStreams.
+
+
+--
+Cosmin Truta <cosmint@cs.ubbcluj.ro>

contrib/delphi/zlib.mak

@@ -1,36 +0,0 @@
-# Makefile for zlib32bd.lib
-# ------------- Borland C++ 4.5 -------------
-
-# The (32-bit) zlib32bd.lib made with this makefile is intended for use 
-# in making the (32-bit) DLL, png32bd.dll. It uses the "stdcall" calling 
-# convention.
-
-CFLAGS= -ps -O2 -C -K -N- -k- -d -3 -r- -w-par -w-aus -WDE
-CC=f:\bc45\bin\bcc32
-LIBFLAGS= /C
-LIB=f:\bc45\bin\tlib
-ZLIB=zlib32bd.lib
-
-.autodepend
-.c.obj:
-        $(CC) -c $(CFLAGS) $<
-
-OBJ1=adler32.obj compress.obj crc32.obj deflate.obj gzio.obj infblock.obj 
-OBJ2=infcodes.obj inflate.obj inftrees.obj infutil.obj inffast.obj 
-OBJ3=trees.obj uncompr.obj zutil.obj
-pOBJ1=+adler32.obj+compress.obj+crc32.obj+deflate.obj+gzio.obj+infblock.obj 
-pOBJ2=+infcodes.obj+inflate.obj+inftrees.obj+infutil.obj+inffast.obj 
-pOBJ3=+trees.obj+uncompr.obj+zutil.obj
-
-all: $(ZLIB)
-
-$(ZLIB): $(OBJ1) $(OBJ2) $(OBJ3)
-        @if exist $@ del $@
-        $(LIB) @&&|
-$@ $(LIBFLAGS) &
-$(pOBJ1) &
-$(pOBJ2) &
-$(pOBJ3)
-|
-
-# End of makefile for zlib32bd.lib

contrib/delphi/zlibd32.mak

@@ -0,0 +1,93 @@
+# Makefile for zlib
+# For use with Delphi and C++ Builder under Win32
+# Updated for zlib 1.2.x by Cosmin Truta
+
+# ------------ Borland C++ ------------
+
+# This project uses the Delphi (fastcall/register) calling convention:
+LOC = -DZEXPORT=__fastcall -DZEXPORTVA=__cdecl
+
+CC = bcc32
+LD = bcc32
+AR = tlib
+# do not use "-pr" in CFLAGS
+CFLAGS = -a -d -k- -O2 $(LOC)
+LDFLAGS =
+
+
+# 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)
+
+
+# testing
+test: example.exe minigzip.exe
+	example
+	echo hello world | minigzip | minigzip -d
+
+example.exe: example.obj $(ZLIB_LIB)
+	$(LD) $(LDFLAGS) example.obj $(ZLIB_LIB)
+
+minigzip.exe: minigzip.obj $(ZLIB_LIB)
+	$(LD) $(LDFLAGS) minigzip.obj $(ZLIB_LIB)
+
+
+# cleanup
+clean:
+	-del *.obj
+	-del *.exe
+	-del *.lib
+	-del *.tds
+	-del zlib.bak
+	-del foo.gz
+

contrib/delphi/zlibdef.pas

@@ -1,169 +0,0 @@
-unit zlibdef;
-
-interface
-
-uses
-  Windows;
-
-const
-  ZLIB_VERSION = '1.1.3';
-
-type
-  voidpf = Pointer;
-  int    = Integer;
-  uInt   = Cardinal;
-  pBytef = PChar;
-  uLong  = Cardinal;
-
-  alloc_func = function(opaque: voidpf; items, size: uInt): voidpf;
-                    stdcall;
-  free_func  = procedure(opaque, address: voidpf);
-                    stdcall;
-
-  internal_state = Pointer;
-
-  z_streamp = ^z_stream;
-  z_stream = packed record
-    next_in: pBytef;          // next input byte
-    avail_in: uInt;           // number of bytes available at next_in
-    total_in: uLong;          // total nb of input bytes read so far
-
-    next_out: pBytef;         // next output byte should be put there
-    avail_out: uInt;          // remaining free space at next_out
-    total_out: uLong;         // total nb of bytes output so far
-
-    msg: PChar;               // last error message, NULL if no error
-    state: internal_state;    // not visible by applications
-
-    zalloc: alloc_func;       // used to allocate the internal state
-    zfree: free_func;         // used to free the internal state
-    opaque: voidpf;           // private data object passed to zalloc and zfree
-
-    data_type: int;           // best guess about the data type: ascii or binary
-    adler: uLong;             // adler32 value of the uncompressed data
-    reserved: uLong;          // reserved for future use
-    end;
-
-const
-  Z_NO_FLUSH      = 0;
-  Z_SYNC_FLUSH    = 2;
-  Z_FULL_FLUSH    = 3;
-  Z_FINISH        = 4;
-
-  Z_OK            = 0;
-  Z_STREAM_END    = 1;
-
-  Z_NO_COMPRESSION         =  0;
-  Z_BEST_SPEED             =  1;
-  Z_BEST_COMPRESSION       =  9;
-  Z_DEFAULT_COMPRESSION    = -1;
-
-  Z_FILTERED            = 1;
-  Z_HUFFMAN_ONLY        = 2;
-  Z_DEFAULT_STRATEGY    = 0;
-
-  Z_BINARY   = 0;
-  Z_ASCII    = 1;
-  Z_UNKNOWN  = 2;
-
-  Z_DEFLATED    = 8;
-
-  MAX_MEM_LEVEL = 9;
-
-function adler32(adler: uLong; const buf: pBytef; len: uInt): uLong;
-             stdcall;
-function crc32(crc: uLong; const buf: pBytef; len: uInt): uLong;
-             stdcall;
-function deflate(strm: z_streamp; flush: int): int;
-             stdcall;
-function deflateCopy(dest, source: z_streamp): int;
-             stdcall;
-function deflateEnd(strm: z_streamp): int;
-             stdcall;
-function deflateInit2_(strm: z_streamp; level, method,
-                       windowBits, memLevel, strategy: int;
-                       const version: PChar; stream_size: int): int;
-             stdcall;
-function deflateInit_(strm: z_streamp; level: int;
-                      const version: PChar; stream_size: int): int;
-             stdcall;
-function deflateParams(strm: z_streamp; level, strategy: int): int;
-             stdcall;
-function deflateReset(strm: z_streamp): int;
-             stdcall;
-function deflateSetDictionary(strm: z_streamp;
-                              const dictionary: pBytef;
-                              dictLength: uInt): int;
-             stdcall;
-function inflate(strm: z_streamp; flush: int): int;
-             stdcall;
-function inflateEnd(strm: z_streamp): int;
-             stdcall;
-function inflateInit2_(strm: z_streamp; windowBits: int;
-                       const version: PChar; stream_size: int): int;
-             stdcall;
-function inflateInit_(strm: z_streamp; const version: PChar;
-                      stream_size: int): int;
-             stdcall;
-function inflateReset(strm: z_streamp): int;
-             stdcall;
-function inflateSetDictionary(strm: z_streamp;
-                              const dictionary: pBytef;
-                              dictLength: uInt): int;
-             stdcall;
-function inflateSync(strm: z_streamp): int;
-             stdcall;
-
-function deflateInit(strm: z_streamp; level: int): int;
-function deflateInit2(strm: z_streamp; level, method, windowBits,
-                      memLevel, strategy: int): int;
-function inflateInit(strm: z_streamp): int;
-function inflateInit2(strm: z_streamp; windowBits: int): int;
-
-implementation
-
-function deflateInit(strm: z_streamp; level: int): int;
-begin
-  Result := deflateInit_(strm, level, ZLIB_VERSION, sizeof(z_stream));
-end;
-
-function deflateInit2(strm: z_streamp; level, method, windowBits,
-                      memLevel, strategy: int): int;
-begin
-  Result := deflateInit2_(strm, level, method, windowBits, memLevel,
-                          strategy, ZLIB_VERSION, sizeof(z_stream));
-end;
-
-function inflateInit(strm: z_streamp): int;
-begin
-  Result := inflateInit_(strm, ZLIB_VERSION, sizeof(z_stream));
-end;
-
-function inflateInit2(strm: z_streamp; windowBits: int): int;
-begin
-  Result := inflateInit2_(strm, windowBits, ZLIB_VERSION,
-                          sizeof(z_stream));
-end;
-
-const
-  zlibDLL = 'png32bd.dll';
-
-function adler32; external zlibDLL;
-function crc32; external zlibDLL;
-function deflate; external zlibDLL;
-function deflateCopy; external zlibDLL;
-function deflateEnd; external zlibDLL;
-function deflateInit2_; external zlibDLL;
-function deflateInit_; external zlibDLL;
-function deflateParams; external zlibDLL;
-function deflateReset; external zlibDLL;
-function deflateSetDictionary; external zlibDLL;
-function inflate; external zlibDLL;
-function inflateEnd; external zlibDLL;
-function inflateInit2_; external zlibDLL;
-function inflateInit_; external zlibDLL;
-function inflateReset; external zlibDLL;
-function inflateSetDictionary; external zlibDLL;
-function inflateSync; external zlibDLL;
-
-end.

contrib/delphi2/d_zlib.bpr

@@ -1,224 +0,0 @@
-# ---------------------------------------------------------------------------
-!if !$d(BCB)
-BCB = $(MAKEDIR)\..
-!endif
-
-# ---------------------------------------------------------------------------
-# IDE SECTION
-# ---------------------------------------------------------------------------
-# The following section of the project makefile is managed by the BCB IDE.
-# It is recommended to use the IDE to change any of the values in this
-# section.
-# ---------------------------------------------------------------------------
-
-VERSION = BCB.03
-# ---------------------------------------------------------------------------
-PROJECT = d_zlib.lib
-OBJFILES = d_zlib.obj adler32.obj deflate.obj infblock.obj infcodes.obj inffast.obj \
-  inflate.obj inftrees.obj infutil.obj trees.obj
-RESFILES =
-RESDEPEN = $(RESFILES)
-LIBFILES =
-LIBRARIES = VCL35.lib
-SPARELIBS = VCL35.lib
-DEFFILE =
-PACKAGES = VCLX35.bpi VCL35.bpi VCLDB35.bpi VCLDBX35.bpi ibsmp35.bpi bcbsmp35.bpi \
-  dclocx35.bpi QRPT35.bpi TEEUI35.bpi TEEDB35.bpi TEE35.bpi DSS35.bpi \
-  NMFAST35.bpi INETDB35.bpi INET35.bpi VCLMID35.bpi
-# ---------------------------------------------------------------------------
-PATHCPP = .;
-PATHASM = .;
-PATHPAS = .;
-PATHRC = .;
-DEBUGLIBPATH = $(BCB)\lib\debug
-RELEASELIBPATH = $(BCB)\lib\release
-# ---------------------------------------------------------------------------
-CFLAG1 = -O2 -Ve -d -k- -vi
-CFLAG2 = -I$(BCB)\include;$(BCB)\include\vcl -H=$(BCB)\lib\vcl35.csm
-CFLAG3 = -ff -pr -5
-PFLAGS = -U;$(DEBUGLIBPATH) -I$(BCB)\include;$(BCB)\include\vcl -H -W -$I- -v -JPHN -M
-RFLAGS = -i$(BCB)\include;$(BCB)\include\vcl 
-AFLAGS = /i$(BCB)\include /i$(BCB)\include\vcl /mx /w2 /zn
-LFLAGS =
-IFLAGS = -g -Gn
-# ---------------------------------------------------------------------------
-ALLOBJ = c0w32.obj $(OBJFILES)
-ALLRES = $(RESFILES)
-ALLLIB = $(LIBFILES) $(LIBRARIES) import32.lib cp32mt.lib
-# ---------------------------------------------------------------------------
-!!ifdef IDEOPTIONS
-
-[Version Info]
-IncludeVerInfo=0
-AutoIncBuild=0
-MajorVer=1
-MinorVer=0
-Release=0
-Build=0
-Debug=0
-PreRelease=0
-Special=0
-Private=0
-DLL=0
-Locale=1040
-CodePage=1252
-
-[Version Info Keys]
-CompanyName=
-FileDescription=
-FileVersion=1.0.0.0
-InternalName=
-LegalCopyright=
-LegalTrademarks=
-OriginalFilename=
-ProductName=
-ProductVersion=1.0.0.0
-Comments=
-
-[HistoryLists\hlIncludePath]
-Count=2
-Item0=$(BCB)\include
-Item1=$(BCB)\include;$(BCB)\include\vcl
-
-[HistoryLists\hlLibraryPath]
-Count=1
-Item0=$(BCB)\lib\obj;$(BCB)\lib
-
-[HistoryLists\hlDebugSourcePath]
-Count=1
-Item0=$(BCB)\source\vcl
-
-[Debugging]
-DebugSourceDirs=
-
-[Parameters]
-RunParams=
-HostApplication=
-
-!endif
-
- ---------------------------------------------------------------------------
-# MAKE SECTION
-# ---------------------------------------------------------------------------
-# This section of the project file is not used by the BCB IDE.  It is for
-# the benefit of building from the command-line using the MAKE utility.
-# ---------------------------------------------------------------------------
-
-.autodepend
-# ---------------------------------------------------------------------------
-!if !$d(BCC32)
-BCC32 = bcc32
-!endif
-
-!if !$d(DCC32)
-DCC32 = dcc32
-!endif
-
-!if !$d(TASM32)
-TASM32 = tasm32
-!endif
-
-!if !$d(LINKER)
-LINKER = TLib
-!endif
-
-!if !$d(BRCC32)
-BRCC32 = brcc32
-!endif
-# ---------------------------------------------------------------------------
-!if $d(PATHCPP)
-.PATH.CPP = $(PATHCPP)
-.PATH.C   = $(PATHCPP)
-!endif
-
-!if $d(PATHPAS)
-.PATH.PAS = $(PATHPAS)
-!endif
-
-!if $d(PATHASM)
-.PATH.ASM = $(PATHASM)
-!endif
-
-!if $d(PATHRC)
-.PATH.RC  = $(PATHRC)
-!endif
-# ---------------------------------------------------------------------------
-!ifdef IDEOPTIONS
-
-[Version Info]
-IncludeVerInfo=0
-AutoIncBuild=0
-MajorVer=1
-MinorVer=0
-Release=0
-Build=0
-Debug=0
-PreRelease=0
-Special=0
-Private=0
-DLL=0
-Locale=1040
-CodePage=1252
-
-[Version Info Keys]
-CompanyName=
-FileDescription=
-FileVersion=1.0.0.0
-InternalName=
-LegalCopyright=
-LegalTrademarks=
-OriginalFilename=
-ProductName=
-ProductVersion=1.0.0.0
-Comments=
-
-[HistoryLists\hlIncludePath]
-Count=2
-Item0=$(BCB)\include;$(BCB)\include\vcl
-Item1=$(BCB)\include
-
-[HistoryLists\hlLibraryPath]
-Count=1
-Item0=$(BCB)\lib\obj;$(BCB)\lib
-
-[HistoryLists\hlDebugSourcePath]
-Count=1
-Item0=$(BCB)\source\vcl
-
-[Debugging]
-DebugSourceDirs=
-
-[Parameters]
-RunParams=
-HostApplication=
-
-!endif
-
-$(PROJECT): $(OBJFILES) $(RESDEPEN) $(DEFFILE)
-    $(BCB)\BIN\$(LINKER) @&&!
-    $(LFLAGS) $(IFLAGS) +
-    $(ALLOBJ), +
-    $(PROJECT),, +
-    $(ALLLIB), +
-    $(DEFFILE), +
-    $(ALLRES)
-!
-# ---------------------------------------------------------------------------
-.pas.hpp:
-    $(BCB)\BIN\$(DCC32) $(PFLAGS) {$< }
-
-.pas.obj:
-    $(BCB)\BIN\$(DCC32) $(PFLAGS) {$< }
-
-.cpp.obj:
-    $(BCB)\BIN\$(BCC32) $(CFLAG1) $(CFLAG2) $(CFLAG3) -n$(@D) {$< }
-
-.c.obj:
-    $(BCB)\BIN\$(BCC32) $(CFLAG1) $(CFLAG2) $(CFLAG3) -n$(@D) {$< }
-
-.asm.obj:
-    $(BCB)\BIN\$(TASM32) $(AFLAGS) $<, $@
-
-.rc.res:
-    $(BCB)\BIN\$(BRCC32) $(RFLAGS) -fo$@ $<
-# ---------------------------------------------------------------------------

contrib/delphi2/d_zlib.cpp

@@ -1,17 +0,0 @@
-#include <condefs.h>
-#pragma hdrstop
-//---------------------------------------------------------------------------
-USEUNIT("adler32.c");
-USEUNIT("deflate.c");
-USEUNIT("infblock.c");
-USEUNIT("infcodes.c");
-USEUNIT("inffast.c");
-USEUNIT("inflate.c");
-USEUNIT("inftrees.c");
-USEUNIT("infutil.c");
-USEUNIT("trees.c");
-//---------------------------------------------------------------------------
-#define Library
-
-// To add a file to the library use the Project menu 'Add to Project'.
-

contrib/delphi2/readme.txt

@@ -1,17 +0,0 @@
-These are files used to compile zlib under Borland C++ Builder 3.
-
-zlib.bpg is the main project group that can be loaded in the BCB IDE and
-loads all other *.bpr projects
-
-zlib.bpr is a project used to create a static zlib.lib library with C calling
-convention for functions.
-
-zlib32.bpr creates a zlib32.dll dynamic link library with Windows standard
-calling convention.
-
-d_zlib.bpr creates a set of .obj files with register calling convention.
-These files are used by zlib.pas to create a Delphi unit containing zlib.
-The d_zlib.lib file generated isn't useful and can be deleted.
-
-zlib.cpp, zlib32.cpp and d_zlib.cpp are used by the above projects.
-

contrib/delphi2/zlib.bpg

@@ -1,26 +0,0 @@
-#------------------------------------------------------------------------------
-VERSION = BWS.01
-#------------------------------------------------------------------------------
-!ifndef ROOT
-ROOT = $(MAKEDIR)\..
-!endif
-#------------------------------------------------------------------------------
-MAKE = $(ROOT)\bin\make.exe -$(MAKEFLAGS) -f$**
-DCC = $(ROOT)\bin\dcc32.exe $**
-BRCC = $(ROOT)\bin\brcc32.exe $**
-#------------------------------------------------------------------------------
-PROJECTS = zlib zlib32 d_zlib
-#------------------------------------------------------------------------------
-default: $(PROJECTS)
-#------------------------------------------------------------------------------
-
-zlib: zlib.bpr
-  $(MAKE)
-
-zlib32: zlib32.bpr
-  $(MAKE)
-
-d_zlib: d_zlib.bpr
-  $(MAKE)
-
-

contrib/delphi2/zlib.bpr

@@ -1,225 +0,0 @@
-# ---------------------------------------------------------------------------
-!if !$d(BCB)
-BCB = $(MAKEDIR)\..
-!endif
-
-# ---------------------------------------------------------------------------
-# IDE SECTION
-# ---------------------------------------------------------------------------
-# The following section of the project makefile is managed by the BCB IDE.
-# It is recommended to use the IDE to change any of the values in this
-# section.
-# ---------------------------------------------------------------------------
-
-VERSION = BCB.03
-# ---------------------------------------------------------------------------
-PROJECT = zlib.lib
-OBJFILES = zlib.obj adler32.obj compress.obj crc32.obj deflate.obj gzio.obj infblock.obj \
-  infcodes.obj inffast.obj inflate.obj inftrees.obj infutil.obj trees.obj \
-  uncompr.obj zutil.obj
-RESFILES =
-RESDEPEN = $(RESFILES)
-LIBFILES =
-LIBRARIES = VCL35.lib
-SPARELIBS = VCL35.lib
-DEFFILE =
-PACKAGES = VCLX35.bpi VCL35.bpi VCLDB35.bpi VCLDBX35.bpi ibsmp35.bpi bcbsmp35.bpi \
-  dclocx35.bpi QRPT35.bpi TEEUI35.bpi TEEDB35.bpi TEE35.bpi DSS35.bpi \
-  NMFAST35.bpi INETDB35.bpi INET35.bpi VCLMID35.bpi
-# ---------------------------------------------------------------------------
-PATHCPP = .;
-PATHASM = .;
-PATHPAS = .;
-PATHRC = .;
-DEBUGLIBPATH = $(BCB)\lib\debug
-RELEASELIBPATH = $(BCB)\lib\release
-# ---------------------------------------------------------------------------
-CFLAG1 = -O2 -Ve -d -k- -vi
-CFLAG2 = -I$(BCB)\include;$(BCB)\include\vcl -H=$(BCB)\lib\vcl35.csm
-CFLAG3 = -ff -5
-PFLAGS = -U;$(DEBUGLIBPATH) -I$(BCB)\include;$(BCB)\include\vcl -H -W -$I- -v -JPHN -M
-RFLAGS = -i$(BCB)\include;$(BCB)\include\vcl 
-AFLAGS = /i$(BCB)\include /i$(BCB)\include\vcl /mx /w2 /zn
-LFLAGS =
-IFLAGS = -g -Gn
-# ---------------------------------------------------------------------------
-ALLOBJ = c0w32.obj $(OBJFILES)
-ALLRES = $(RESFILES)
-ALLLIB = $(LIBFILES) $(LIBRARIES) import32.lib cp32mt.lib
-# ---------------------------------------------------------------------------
-!!ifdef IDEOPTIONS
-
-[Version Info]
-IncludeVerInfo=0
-AutoIncBuild=0
-MajorVer=1
-MinorVer=0
-Release=0
-Build=0
-Debug=0
-PreRelease=0
-Special=0
-Private=0
-DLL=0
-Locale=1040
-CodePage=1252
-
-[Version Info Keys]
-CompanyName=
-FileDescription=
-FileVersion=1.0.0.0
-InternalName=
-LegalCopyright=
-LegalTrademarks=
-OriginalFilename=
-ProductName=
-ProductVersion=1.0.0.0
-Comments=
-
-[HistoryLists\hlIncludePath]
-Count=2
-Item0=$(BCB)\include
-Item1=$(BCB)\include;$(BCB)\include\vcl
-
-[HistoryLists\hlLibraryPath]
-Count=1
-Item0=$(BCB)\lib\obj;$(BCB)\lib
-
-[HistoryLists\hlDebugSourcePath]
-Count=1
-Item0=$(BCB)\source\vcl
-
-[Debugging]
-DebugSourceDirs=
-
-[Parameters]
-RunParams=
-HostApplication=
-
-!endif
-
- ---------------------------------------------------------------------------
-# MAKE SECTION
-# ---------------------------------------------------------------------------
-# This section of the project file is not used by the BCB IDE.  It is for
-# the benefit of building from the command-line using the MAKE utility.
-# ---------------------------------------------------------------------------
-
-.autodepend
-# ---------------------------------------------------------------------------
-!if !$d(BCC32)
-BCC32 = bcc32
-!endif
-
-!if !$d(DCC32)
-DCC32 = dcc32
-!endif
-
-!if !$d(TASM32)
-TASM32 = tasm32
-!endif
-
-!if !$d(LINKER)
-LINKER = TLib
-!endif
-
-!if !$d(BRCC32)
-BRCC32 = brcc32
-!endif
-# ---------------------------------------------------------------------------
-!if $d(PATHCPP)
-.PATH.CPP = $(PATHCPP)
-.PATH.C   = $(PATHCPP)
-!endif
-
-!if $d(PATHPAS)
-.PATH.PAS = $(PATHPAS)
-!endif
-
-!if $d(PATHASM)
-.PATH.ASM = $(PATHASM)
-!endif
-
-!if $d(PATHRC)
-.PATH.RC  = $(PATHRC)
-!endif
-# ---------------------------------------------------------------------------
-!ifdef IDEOPTIONS
-
-[Version Info]
-IncludeVerInfo=0
-AutoIncBuild=0
-MajorVer=1
-MinorVer=0
-Release=0
-Build=0
-Debug=0
-PreRelease=0
-Special=0
-Private=0
-DLL=0
-Locale=1040
-CodePage=1252
-
-[Version Info Keys]
-CompanyName=
-FileDescription=
-FileVersion=1.0.0.0
-InternalName=
-LegalCopyright=
-LegalTrademarks=
-OriginalFilename=
-ProductName=
-ProductVersion=1.0.0.0
-Comments=
-
-[HistoryLists\hlIncludePath]
-Count=2
-Item0=$(BCB)\include;$(BCB)\include\vcl
-Item1=$(BCB)\include
-
-[HistoryLists\hlLibraryPath]
-Count=1
-Item0=$(BCB)\lib\obj;$(BCB)\lib
-
-[HistoryLists\hlDebugSourcePath]
-Count=1
-Item0=$(BCB)\source\vcl
-
-[Debugging]
-DebugSourceDirs=
-
-[Parameters]
-RunParams=
-HostApplication=
-
-!endif
-
-$(PROJECT): $(OBJFILES) $(RESDEPEN) $(DEFFILE)
-    $(BCB)\BIN\$(LINKER) @&&!
-    $(LFLAGS) $(IFLAGS) +
-    $(ALLOBJ), +
-    $(PROJECT),, +
-    $(ALLLIB), +
-    $(DEFFILE), +
-    $(ALLRES)
-!
-# ---------------------------------------------------------------------------
-.pas.hpp:
-    $(BCB)\BIN\$(DCC32) $(PFLAGS) {$< }
-
-.pas.obj:
-    $(BCB)\BIN\$(DCC32) $(PFLAGS) {$< }
-
-.cpp.obj:
-    $(BCB)\BIN\$(BCC32) $(CFLAG1) $(CFLAG2) $(CFLAG3) -n$(@D) {$< }
-
-.c.obj:
-    $(BCB)\BIN\$(BCC32) $(CFLAG1) $(CFLAG2) $(CFLAG3) -n$(@D) {$< }
-
-.asm.obj:
-    $(BCB)\BIN\$(TASM32) $(AFLAGS) $<, $@
-
-.rc.res:
-    $(BCB)\BIN\$(BRCC32) $(RFLAGS) -fo$@ $<
-# ---------------------------------------------------------------------------

contrib/delphi2/zlib.cpp

@@ -1,22 +0,0 @@
-#include <condefs.h>
-#pragma hdrstop
-//---------------------------------------------------------------------------
-USEUNIT("adler32.c");
-USEUNIT("compress.c");
-USEUNIT("crc32.c");
-USEUNIT("deflate.c");
-USEUNIT("gzio.c");
-USEUNIT("infblock.c");
-USEUNIT("infcodes.c");
-USEUNIT("inffast.c");
-USEUNIT("inflate.c");
-USEUNIT("inftrees.c");
-USEUNIT("infutil.c");
-USEUNIT("trees.c");
-USEUNIT("uncompr.c");
-USEUNIT("zutil.c");
-//---------------------------------------------------------------------------
-#define Library
-
-// To add a file to the library use the Project menu 'Add to Project'.
-

contrib/delphi2/zlib32.bpr

@@ -1,174 +0,0 @@
-# ---------------------------------------------------------------------------
-!if !$d(BCB)
-BCB = $(MAKEDIR)\..
-!endif
-
-# ---------------------------------------------------------------------------
-# IDE SECTION
-# ---------------------------------------------------------------------------
-# The following section of the project makefile is managed by the BCB IDE.
-# It is recommended to use the IDE to change any of the values in this
-# section.
-# ---------------------------------------------------------------------------
-
-VERSION = BCB.03
-# ---------------------------------------------------------------------------
-PROJECT = zlib32.dll
-OBJFILES = zlib32.obj adler32.obj compress.obj crc32.obj deflate.obj gzio.obj infblock.obj \
-  infcodes.obj inffast.obj inflate.obj inftrees.obj infutil.obj trees.obj \
-  uncompr.obj zutil.obj
-RESFILES =
-RESDEPEN = $(RESFILES)
-LIBFILES =
-LIBRARIES = 
-SPARELIBS = 
-DEFFILE =
-PACKAGES = VCLX35.bpi VCL35.bpi VCLDB35.bpi VCLDBX35.bpi ibsmp35.bpi bcbsmp35.bpi \
-  dclocx35.bpi QRPT35.bpi TEEUI35.bpi TEEDB35.bpi TEE35.bpi DSS35.bpi \
-  NMFAST35.bpi INETDB35.bpi INET35.bpi VCLMID35.bpi
-# ---------------------------------------------------------------------------
-PATHCPP = .;
-PATHASM = .;
-PATHPAS = .;
-PATHRC = .;
-DEBUGLIBPATH = $(BCB)\lib\debug
-RELEASELIBPATH = $(BCB)\lib\release
-# ---------------------------------------------------------------------------
-CFLAG1 = -WD -O2 -Ve -d -k- -vi -c -tWD
-CFLAG2 = -D_NO_VCL;ZLIB_DLL -I$(BCB)\include
-CFLAG3 = -ff -5
-PFLAGS = -D_NO_VCL;ZLIB_DLL -U$(BCB)\lib;$(RELEASELIBPATH) -I$(BCB)\include -$I- -v \
-  -JPHN -M
-RFLAGS = -D_NO_VCL;ZLIB_DLL -i$(BCB)\include
-AFLAGS = /i$(BCB)\include /d_NO_VCL /dZLIB_DLL /mx /w2 /zn
-LFLAGS = -L$(BCB)\lib;$(RELEASELIBPATH) -aa -Tpd -x -Gi
-IFLAGS = -Gn -g
-# ---------------------------------------------------------------------------
-ALLOBJ = c0d32.obj $(OBJFILES)
-ALLRES = $(RESFILES)
-ALLLIB = $(LIBFILES)  import32.lib cw32mt.lib
-# ---------------------------------------------------------------------------
-!ifdef IDEOPTIONS
-
-[Version Info]
-IncludeVerInfo=0
-AutoIncBuild=0
-MajorVer=1
-MinorVer=0
-Release=0
-Build=0
-Debug=0
-PreRelease=0
-Special=0
-Private=0
-DLL=1
-Locale=1040
-CodePage=1252
-
-[Version Info Keys]
-CompanyName=
-FileDescription=DLL (GUI)
-FileVersion=1.0.0.0
-InternalName=
-LegalCopyright=
-LegalTrademarks=
-OriginalFilename=
-ProductName=
-ProductVersion=1.0.0.0
-Comments=
-
-[HistoryLists\hlIncludePath]
-Count=1
-Item0=$(BCB)\include
-
-[HistoryLists\hlLibraryPath]
-Count=1
-Item0=$(BCB)\lib
-
-[HistoryLists\hlConditionals]
-Count=1
-Item0=_NO_VCL;ZLIB_DLL
-
-[Debugging]
-DebugSourceDirs=
-
-[Parameters]
-RunParams=
-HostApplication=
-
-!endif
-
-# ---------------------------------------------------------------------------
-# MAKE SECTION
-# ---------------------------------------------------------------------------
-# This section of the project file is not used by the BCB IDE.  It is for
-# the benefit of building from the command-line using the MAKE utility.
-# ---------------------------------------------------------------------------
-
-.autodepend
-# ---------------------------------------------------------------------------
-!if !$d(BCC32)
-BCC32 = bcc32
-!endif
-
-!if !$d(DCC32)
-DCC32 = dcc32
-!endif
-
-!if !$d(TASM32)
-TASM32 = tasm32
-!endif
-
-!if !$d(LINKER)
-LINKER = ilink32
-!endif
-
-!if !$d(BRCC32)
-BRCC32 = brcc32
-!endif
-# ---------------------------------------------------------------------------
-!if $d(PATHCPP)
-.PATH.CPP = $(PATHCPP)
-.PATH.C   = $(PATHCPP)
-!endif
-
-!if $d(PATHPAS)
-.PATH.PAS = $(PATHPAS)
-!endif
-
-!if $d(PATHASM)
-.PATH.ASM = $(PATHASM)
-!endif
-
-!if $d(PATHRC)
-.PATH.RC  = $(PATHRC)
-!endif
-# ---------------------------------------------------------------------------
-$(PROJECT): $(OBJFILES) $(RESDEPEN) $(DEFFILE)
-    $(BCB)\BIN\$(LINKER) @&&!
-    $(LFLAGS) $(IFLAGS) +
-    $(ALLOBJ), +
-    $(PROJECT),, +
-    $(ALLLIB), +
-    $(DEFFILE), +
-    $(ALLRES)
-!
-# ---------------------------------------------------------------------------
-.pas.hpp:
-    $(BCB)\BIN\$(DCC32) $(PFLAGS) {$< }
-
-.pas.obj:
-    $(BCB)\BIN\$(DCC32) $(PFLAGS) {$< }
-
-.cpp.obj:
-    $(BCB)\BIN\$(BCC32) $(CFLAG1) $(CFLAG2) $(CFLAG3) -n$(@D) {$< }
-
-.c.obj:
-    $(BCB)\BIN\$(BCC32) $(CFLAG1) $(CFLAG2) $(CFLAG3) -n$(@D) {$< }
-
-.asm.obj:
-    $(BCB)\BIN\$(TASM32) $(AFLAGS) $<, $@
-
-.rc.res:
-    $(BCB)\BIN\$(BRCC32) $(RFLAGS) -fo$@ $<
-# ---------------------------------------------------------------------------

contrib/delphi2/zlib32.cpp

@@ -1,42 +0,0 @@
-
-#include <windows.h>
-#pragma hdrstop
-#include <condefs.h>
-
-
-//---------------------------------------------------------------------------
-//   Important note about DLL memory management in a VCL DLL:
-//
-//
-//
-// If your DLL uses VCL and exports any functions that pass VCL String objects
-// (or structs/classes containing nested Strings) as parameter or function
-// results, you will need to build both your DLL project and any EXE projects
-// that use your DLL with the dynamic RTL (the RTL DLL).  This will change your
-// DLL and its calling EXE's to use BORLNDMM.DLL as their memory manager. In
-// these cases, the file BORLNDMM.DLL should be deployed along with your DLL
-// and the RTL DLL (CP3240MT.DLL). To avoid the requiring BORLNDMM.DLL in
-// these situations, pass string information using "char *" or ShortString
-// parameters and then link with the static RTL.
-//
-//---------------------------------------------------------------------------
-USEUNIT("adler32.c");
-USEUNIT("compress.c");
-USEUNIT("crc32.c");
-USEUNIT("deflate.c");
-USEUNIT("gzio.c");
-USEUNIT("infblock.c");
-USEUNIT("infcodes.c");
-USEUNIT("inffast.c");
-USEUNIT("inflate.c");
-USEUNIT("inftrees.c");
-USEUNIT("infutil.c");
-USEUNIT("trees.c");
-USEUNIT("uncompr.c");
-USEUNIT("zutil.c");
-//---------------------------------------------------------------------------
-#pragma argsused
-int WINAPI DllEntryPoint(HINSTANCE hinst, unsigned long reason, void*)
-{
-        return 1;
-}

contrib/infback9/README

@@ -0,0 +1 @@
+See infback9.h for what this is and how to use it.

contrib/infback9/infback9.c

@@ -0,0 +1,605 @@
+/* infback9.c -- inflate deflate64 data using a call-back interface
+ * Copyright (C) 1995-2003 Mark Adler
+ * For conditions of distribution and use, see copyright notice in zlib.h
+ */
+
+#include "zutil.h"
+#include "infback9.h"
+#include "inftree9.h"
+#include "inflate9.h"
+
+#define WSIZE 65536UL
+
+/*
+   strm provides memory allocation functions in zalloc and zfree, or
+   Z_NULL to use the library memory allocation functions.
+
+   window is a user-supplied window and output buffer that is 64K bytes.
+ */
+int ZEXPORT inflateBack9Init_(strm, window, version, stream_size)
+z_stream FAR *strm;
+unsigned char FAR *window;
+const char *version;
+int stream_size;
+{
+    struct inflate_state FAR *state;
+
+    if (version == Z_NULL || version[0] != ZLIB_VERSION[0] ||
+        stream_size != (int)(sizeof(z_stream)))
+        return Z_VERSION_ERROR;
+    if (strm == Z_NULL || window == Z_NULL)
+        return Z_STREAM_ERROR;
+    strm->msg = Z_NULL;                 /* in case we return an error */
+    if (strm->zalloc == (alloc_func)0) {
+        strm->zalloc = zcalloc;
+        strm->opaque = (voidpf)0;
+    }
+    if (strm->zfree == (free_func)0) strm->zfree = zcfree;
+    state = (struct inflate_state FAR *)ZALLOC(strm, 1,
+                                               sizeof(struct inflate_state));
+    if (state == Z_NULL) return Z_MEM_ERROR;
+    Tracev((stderr, "inflate: allocated\n"));
+    strm->state = (voidpf)state;
+    state->window = window;
+    return Z_OK;
+}
+
+/*
+   Build and output length and distance decoding tables for fixed code
+   decoding.
+ */
+#ifdef MAKEFIXED
+#include <stdio.h>
+
+void makefixed9(void)
+{
+    unsigned sym, bits, low, size;
+    code *next, *lenfix, *distfix;
+    struct inflate_state state;
+    code fixed[544];
+
+    /* literal/length table */
+    sym = 0;
+    while (sym < 144) state.lens[sym++] = 8;
+    while (sym < 256) state.lens[sym++] = 9;
+    while (sym < 280) state.lens[sym++] = 7;
+    while (sym < 288) state.lens[sym++] = 8;
+    next = fixed;
+    lenfix = next;
+    bits = 9;
+    inflate_table9(LENS, state.lens, 288, &(next), &(bits), state.work);
+
+    /* distance table */
+    sym = 0;
+    while (sym < 32) state.lens[sym++] = 5;
+    distfix = next;
+    bits = 5;
+    inflate_table9(DISTS, state.lens, 32, &(next), &(bits), state.work);
+
+    /* write tables */
+    puts("    /* inffix9.h -- table for decoding deflate64 fixed codes");
+    puts("     * Generated automatically by makefixed9().");
+    puts("     */");
+    puts("");
+    puts("    /* WARNING: this file should *not* be used by applications.");
+    puts("       It is part of the implementation of this library and is");
+    puts("       subject to change. Applications should only use zlib.h.");
+    puts("     */");
+    puts("");
+    size = 1U << 9;
+    printf("    static const code lenfix[%u] = {", size);
+    low = 0;
+    for (;;) {
+        if ((low % 6) == 0) printf("\n        ");
+        printf("{%u,%u,%d}", lenfix[low].op, lenfix[low].bits,
+               lenfix[low].val);
+        if (++low == size) break;
+        putchar(',');
+    }
+    puts("\n    };");
+    size = 1U << 5;
+    printf("\n    static const code distfix[%u] = {", size);
+    low = 0;
+    for (;;) {
+        if ((low % 5) == 0) printf("\n        ");
+        printf("{%u,%u,%d}", distfix[low].op, distfix[low].bits,
+               distfix[low].val);
+        if (++low == size) break;
+        putchar(',');
+    }
+    puts("\n    };");
+}
+#endif /* MAKEFIXED */
+
+/* Macros for inflateBack(): */
+
+/* Clear the input bit accumulator */
+#define INITBITS() \
+    do { \
+        hold = 0; \
+        bits = 0; \
+    } while (0)
+
+/* Assure that some input is available.  If input is requested, but denied,
+   then return a Z_BUF_ERROR from inflateBack(). */
+#define PULL() \
+    do { \
+        if (have == 0) { \
+            have = in(in_desc, &next); \
+            if (have == 0) { \
+                next = Z_NULL; \
+                ret = Z_BUF_ERROR; \
+                goto inf_leave; \
+            } \
+        } \
+    } while (0)
+
+/* Get a byte of input into the bit accumulator, or return from inflateBack()
+   with an error if there is no input available. */
+#define PULLBYTE() \
+    do { \
+        PULL(); \
+        have--; \
+        hold += (unsigned long)(*next++) << bits; \
+        bits += 8; \
+    } while (0)
+
+/* Assure that there are at least n bits in the bit accumulator.  If there is
+   not enough available input to do that, then return from inflateBack() with
+   an error. */
+#define NEEDBITS(n) \
+    do { \
+        while (bits < (unsigned)(n)) \
+            PULLBYTE(); \
+    } while (0)
+
+/* Return the low n bits of the bit accumulator (n <= 16) */
+#define BITS(n) \
+    ((unsigned)hold & ((1U << (n)) - 1))
+
+/* Remove n bits from the bit accumulator */
+#define DROPBITS(n) \
+    do { \
+        hold >>= (n); \
+        bits -= (unsigned)(n); \
+    } while (0)
+
+/* Remove zero to seven bits as needed to go to a byte boundary */
+#define BYTEBITS() \
+    do { \
+        hold >>= bits & 7; \
+        bits -= bits & 7; \
+    } while (0)
+
+/* Assure that some output space is available, by writing out the window
+   if it's full.  If the write fails, return from inflateBack() with a
+   Z_BUF_ERROR. */
+#define ROOM() \
+    do { \
+        if (left == 0) { \
+            put = window; \
+            left = WSIZE; \
+            wrap = 1; \
+            if (out(out_desc, put, (unsigned)left)) { \
+                ret = Z_BUF_ERROR; \
+                goto inf_leave; \
+            } \
+        } \
+    } while (0)
+
+/*
+   strm provides the memory allocation functions and window buffer on input,
+   and provides information on the unused input on return.  For Z_DATA_ERROR
+   returns, strm will also provide an error message.
+
+   in() and out() are the call-back input and output functions.  When
+   inflateBack() needs more input, it calls in().  When inflateBack() has
+   filled the window with output, or when it completes with data in the
+   window, it calls out() to write out the data.  The application must not
+   change the provided input until in() is called again or inflateBack()
+   returns.  The application must not change the window/output buffer until
+   inflateBack() returns.
+
+   in() and out() are called with a descriptor parameter provided in the
+   inflateBack() call.  This parameter can be a structure that provides the
+   information required to do the read or write, as well as accumulated
+   information on the input and output such as totals and check values.
+
+   in() should return zero on failure.  out() should return non-zero on
+   failure.  If either in() or out() fails, than inflateBack() returns a
+   Z_BUF_ERROR.  strm->next_in can be checked for Z_NULL to see whether it
+   was in() or out() that caused in the error.  Otherwise,  inflateBack()
+   returns Z_STREAM_END on success, Z_DATA_ERROR for an deflate format
+   error, or Z_MEM_ERROR if it could not allocate memory for the state.
+   inflateBack() can also return Z_STREAM_ERROR if the input parameters
+   are not correct, i.e. strm is Z_NULL or the state was not initialized.
+ */
+int ZEXPORT inflateBack9(strm, in, in_desc, out, out_desc)
+z_stream FAR *strm;
+in_func in;
+void FAR *in_desc;
+out_func out;
+void FAR *out_desc;
+{
+    struct inflate_state FAR *state;
+    unsigned char FAR *next;    /* next input */
+    unsigned char FAR *put;     /* next output */
+    unsigned have;              /* available input */
+    unsigned long left;         /* available output */
+    inflate_mode mode;          /* current inflate mode */
+    int lastblock;              /* true if processing last block */
+    int wrap;                   /* true if the window has wrapped */
+    unsigned long write;        /* window write index */
+    unsigned char FAR *window;  /* allocated sliding window, if needed */
+    unsigned long hold;         /* bit buffer */
+    unsigned bits;              /* bits in bit buffer */
+    unsigned extra;             /* extra bits needed */
+    unsigned long length;       /* literal or length of data to copy */
+    unsigned long offset;       /* distance back to copy string from */
+    unsigned long copy;         /* number of stored or match bytes to copy */
+    unsigned char FAR *from;    /* where to copy match bytes from */
+    code const FAR *lencode;    /* starting table for length/literal codes */
+    code const FAR *distcode;   /* starting table for distance codes */
+    unsigned lenbits;           /* index bits for lencode */
+    unsigned distbits;          /* index bits for distcode */
+    code this;                  /* current decoding table entry */
+    code last;                  /* parent table entry */
+    unsigned len;               /* length to copy for repeats, bits to drop */
+    int ret;                    /* return code */
+    static const unsigned short order[19] = /* permutation of code lengths */
+        {16, 17, 18, 0, 8, 7, 9, 6, 10, 5, 11, 4, 12, 3, 13, 2, 14, 1, 15};
+#include "inffix9.h"
+
+    /* Check that the strm exists and that the state was initialized */
+    if (strm == Z_NULL || strm->state == Z_NULL)
+        return Z_STREAM_ERROR;
+    state = (struct inflate_state FAR *)strm->state;
+
+    /* Reset the state */
+    strm->msg = Z_NULL;
+    mode = TYPE;
+    lastblock = 0;
+    write = 0;
+    wrap = 0;
+    window = state->window;
+    next = strm->next_in;
+    have = next != Z_NULL ? strm->avail_in : 0;
+    hold = 0;
+    bits = 0;
+    put = window;
+    left = WSIZE;
+    lencode = Z_NULL;
+    distcode = Z_NULL;
+
+    /* Inflate until end of block marked as last */
+    for (;;)
+        switch (mode) {
+        case TYPE:
+            /* determine and dispatch block type */
+            if (lastblock) {
+                BYTEBITS();
+                mode = DONE;
+                break;
+            }
+            NEEDBITS(3);
+            lastblock = BITS(1);
+            DROPBITS(1);
+            switch (BITS(2)) {
+            case 0:                             /* stored block */
+                Tracev((stderr, "inflate:     stored block%s\n",
+                        lastblock ? " (last)" : ""));
+                mode = STORED;
+                break;
+            case 1:                             /* fixed block */
+                lencode = lenfix;
+                lenbits = 9;
+                distcode = distfix;
+                distbits = 5;
+                Tracev((stderr, "inflate:     fixed codes block%s\n",
+                        lastblock ? " (last)" : ""));
+                mode = LEN;                     /* decode codes */
+                break;
+            case 2:                             /* dynamic block */
+                Tracev((stderr, "inflate:     dynamic codes block%s\n",
+                        lastblock ? " (last)" : ""));
+                mode = TABLE;
+                break;
+            case 3:
+                strm->msg = (char *)"invalid block type";
+                mode = BAD;
+            }
+            DROPBITS(2);
+            break;
+
+        case STORED:
+            /* get and verify stored block length */
+            BYTEBITS();                         /* go to byte boundary */
+            NEEDBITS(32);
+            if ((hold & 0xffff) != ((hold >> 16) ^ 0xffff)) {
+                strm->msg = (char *)"invalid stored block lengths";
+                mode = BAD;
+                break;
+            }
+            length = (unsigned)hold & 0xffff;
+            Tracev((stderr, "inflate:       stored length %lu\n",
+                    length));
+            INITBITS();
+
+            /* copy stored block from input to output */
+            while (length != 0) {
+                copy = length;
+                PULL();
+                ROOM();
+                if (copy > have) copy = have;
+                if (copy > left) copy = left;
+                zmemcpy(put, next, copy);
+                have -= copy;
+                next += copy;
+                left -= copy;
+                put += copy;
+                length -= copy;
+            }
+            Tracev((stderr, "inflate:       stored end\n"));
+            mode = TYPE;
+            break;
+
+        case TABLE:
+            /* get dynamic table entries descriptor */
+            NEEDBITS(14);
+            state->nlen = BITS(5) + 257;
+            DROPBITS(5);
+            state->ndist = BITS(5) + 1;
+            DROPBITS(5);
+            state->ncode = BITS(4) + 4;
+            DROPBITS(4);
+            if (state->nlen > 286) {
+                strm->msg = (char *)"too many length symbols";
+                mode = BAD;
+                break;
+            }
+            Tracev((stderr, "inflate:       table sizes ok\n"));
+
+            /* get code length code lengths (not a typo) */
+            state->have = 0;
+            while (state->have < state->ncode) {
+                NEEDBITS(3);
+                state->lens[order[state->have++]] = (unsigned short)BITS(3);
+                DROPBITS(3);
+            }
+            while (state->have < 19)
+                state->lens[order[state->have++]] = 0;
+            state->next = state->codes;
+            lencode = (code const FAR *)(state->next);
+            lenbits = 7;
+            ret = inflate_table9(CODES, state->lens, 19, &(state->next),
+                                &(lenbits), state->work);
+            if (ret) {
+                strm->msg = (char *)"invalid code lengths set";
+                mode = BAD;
+                break;
+            }
+            Tracev((stderr, "inflate:       code lengths ok\n"));
+
+            /* get length and distance code code lengths */
+            state->have = 0;
+            while (state->have < state->nlen + state->ndist) {
+                for (;;) {
+                    this = lencode[BITS(lenbits)];
+                    if ((unsigned)(this.bits) <= bits) break;
+                    PULLBYTE();
+                }
+                if (this.val < 16) {
+                    NEEDBITS(this.bits);
+                    DROPBITS(this.bits);
+                    state->lens[state->have++] = this.val;
+                }
+                else {
+                    if (this.val == 16) {
+                        NEEDBITS(this.bits + 2);
+                        DROPBITS(this.bits);
+                        if (state->have == 0) {
+                            strm->msg = (char *)"invalid bit length repeat";
+                            mode = BAD;
+                            break;
+                        }
+                        len = (unsigned)(state->lens[state->have - 1]);
+                        copy = 3 + BITS(2);
+                        DROPBITS(2);
+                    }
+                    else if (this.val == 17) {
+                        NEEDBITS(this.bits + 3);
+                        DROPBITS(this.bits);
+                        len = 0;
+                        copy = 3 + BITS(3);
+                        DROPBITS(3);
+                    }
+                    else {
+                        NEEDBITS(this.bits + 7);
+                        DROPBITS(this.bits);
+                        len = 0;
+                        copy = 11 + BITS(7);
+                        DROPBITS(7);
+                    }
+                    if (state->have + copy > state->nlen + state->ndist) {
+                        strm->msg = (char *)"invalid bit length repeat";
+                        mode = BAD;
+                        break;
+                    }
+                    while (copy--)
+                        state->lens[state->have++] = (unsigned short)len;
+                }
+            }
+
+            /* build code tables */
+            state->next = state->codes;
+            lencode = (code const FAR *)(state->next);
+            lenbits = 9;
+            ret = inflate_table9(LENS, state->lens, state->nlen,
+                            &(state->next), &(lenbits), state->work);
+            if (ret) {
+                strm->msg = (char *)"invalid literal/lengths set";
+                mode = BAD;
+                break;
+            }
+            distcode = (code const FAR *)(state->next);
+            distbits = 6;
+            ret = inflate_table9(DISTS, state->lens + state->nlen,
+                            state->ndist, &(state->next), &(distbits),
+                            state->work);
+            if (ret) {
+                strm->msg = (char *)"invalid distances set";
+                mode = BAD;
+                break;
+            }
+            Tracev((stderr, "inflate:       codes ok\n"));
+            mode = LEN;
+
+        case LEN:
+            /* get a literal, length, or end-of-block code */
+            for (;;) {
+                this = lencode[BITS(lenbits)];
+                if ((unsigned)(this.bits) <= bits) break;
+                PULLBYTE();
+            }
+            if (this.op && (this.op & 0xf0) == 0) {
+                last = this;
+                for (;;) {
+                    this = lencode[last.val +
+                            (BITS(last.bits + last.op) >> last.bits)];
+                    if ((unsigned)(last.bits + this.bits) <= bits) break;
+                    PULLBYTE();
+                }
+                DROPBITS(last.bits);
+            }
+            DROPBITS(this.bits);
+            length = (unsigned)this.val;
+
+            /* process literal */
+            if (this.op == 0) {
+                Tracevv((stderr, this.val >= 0x20 && this.val < 0x7f ?
+                        "inflate:         literal '%c'\n" :
+                        "inflate:         literal 0x%02x\n", this.val));
+                ROOM();
+                *put++ = (unsigned char)(length);
+                left--;
+                mode = LEN;
+                break;
+            }
+
+            /* process end of block */
+            if (this.op & 32) {
+                Tracevv((stderr, "inflate:         end of block\n"));
+                mode = TYPE;
+                break;
+            }
+
+            /* invalid code */
+            if (this.op & 64) {
+                strm->msg = (char *)"invalid literal/length code";
+                mode = BAD;
+                break;
+            }
+
+            /* length code -- get extra bits, if any */
+            extra = (unsigned)(this.op) & 31;
+            if (extra != 0) {
+                NEEDBITS(extra);
+                length += BITS(extra);
+                DROPBITS(extra);
+            }
+            Tracevv((stderr, "inflate:         length %lu\n", length));
+
+            /* get distance code */
+            for (;;) {
+                this = distcode[BITS(distbits)];
+                if ((unsigned)(this.bits) <= bits) break;
+                PULLBYTE();
+            }
+            if ((this.op & 0xf0) == 0) {
+                last = this;
+                for (;;) {
+                    this = distcode[last.val +
+                            (BITS(last.bits + last.op) >> last.bits)];
+                    if ((unsigned)(last.bits + this.bits) <= bits) break;
+                    PULLBYTE();
+                }
+                DROPBITS(last.bits);
+            }
+            DROPBITS(this.bits);
+            if (this.op & 64) {
+                strm->msg = (char *)"invalid distance code";
+                mode = BAD;
+                break;
+            }
+            offset = (unsigned)this.val;
+
+            /* get distance extra bits, if any */
+            extra = (unsigned)(this.op) & 15;
+            if (extra != 0) {
+                NEEDBITS(extra);
+                offset += BITS(extra);
+                DROPBITS(extra);
+            }
+            if (offset > WSIZE - (wrap ? 0: left)) {
+                strm->msg = (char *)"invalid distance too far back";
+                mode = BAD;
+                break;
+            }
+            Tracevv((stderr, "inflate:         distance %lu\n", offset));
+
+            /* copy match from window to output */
+            do {
+                ROOM();
+                copy = WSIZE - offset;
+                if (copy < left) {
+                    from = put + copy;
+                    copy = left - copy;
+                }
+                else {
+                    from = put - offset;
+                    copy = left;
+                }
+                if (copy > length) copy = length;
+                length -= copy;
+                left -= copy;
+                do {
+                    *put++ = *from++;
+                } while (--copy);
+            } while (length != 0);
+            break;
+
+        case DONE:
+            /* inflate stream terminated properly -- write leftover output */
+            ret = Z_STREAM_END;
+            if (left < WSIZE) {
+                if (out(out_desc, window, (unsigned)(WSIZE - left)))
+                    ret = Z_BUF_ERROR;
+            }
+            goto inf_leave;
+
+        case BAD:
+            ret = Z_DATA_ERROR;
+            goto inf_leave;
+
+        default:                /* can't happen, but makes compilers happy */
+            ret = Z_STREAM_ERROR;
+            goto inf_leave;
+        }
+
+    /* Return unused input */
+  inf_leave:
+    strm->next_in = next;
+    strm->avail_in = have;
+    return ret;
+}
+
+int ZEXPORT inflateBack9End(strm)
+z_stream FAR *strm;
+{
+    if (strm == Z_NULL || strm->state == Z_NULL || strm->zfree == (free_func)0)
+        return Z_STREAM_ERROR;
+    ZFREE(strm, strm->state);
+    strm->state = Z_NULL;
+    Tracev((stderr, "inflate: end\n"));
+    return Z_OK;
+}

contrib/infback9/infback9.h

@@ -0,0 +1,29 @@
+/* infback9.h -- header for using inflateBack9 functions
+ * Copyright (C) 2003 Mark Adler
+ * For conditions of distribution and use, see copyright notice in zlib.h
+ */
+
+/*
+ * This header file and associated patches provide a decoder for PKWare's
+ * undocumented deflate64 compression method (method 9).  Use with infback9.c,
+ * inftree9.h, inftree9.c, and inffix9.h.  These patches are not supported.
+ * This should be compiled with zlib, since it uses zutil.h and zutil.o.
+ * This code has not yet been tested on 16-bit architectures.  See the
+ * comments in zlib.h for inflateBack() usage.  These functions are used
+ * identically, except that there is no windowBits parameter, and a 64K
+ * window must be provided.  Also if int's are 16 bits, then a zero for
+ * the third parameter of the "out" function actually means 65536UL.
+ * zlib.h must be included before this header file.
+ */
+
+ZEXTERN int ZEXPORT inflateBack9 OF((z_stream FAR *strm,
+                                    in_func in, void FAR *in_desc,
+                                    out_func out, void FAR *out_desc));
+ZEXTERN int ZEXPORT inflateBack9End OF((z_stream FAR *strm));
+ZEXTERN int ZEXPORT inflateBack9Init_ OF((z_stream FAR *strm,
+                                         unsigned char FAR *window,
+                                         const char *version,
+                                         int stream_size));
+#define inflateBack9Init(strm, window) \
+        inflateBack9Init_((strm), (window), \
+        ZLIB_VERSION, sizeof(z_stream))

contrib/infback9/inffix9.h

@@ -0,0 +1,107 @@
+    /* inffix9.h -- table for decoding deflate64 fixed codes
+     * Generated automatically by makefixed9().
+     */
+
+    /* WARNING: this file should *not* be used by applications.
+       It is part of the implementation of this library and is
+       subject to change. Applications should only use zlib.h.
+     */
+
+    static const code lenfix[512] = {
+        {96,7,0},{0,8,80},{0,8,16},{132,8,115},{130,7,31},{0,8,112},
+        {0,8,48},{0,9,192},{128,7,10},{0,8,96},{0,8,32},{0,9,160},
+        {0,8,0},{0,8,128},{0,8,64},{0,9,224},{128,7,6},{0,8,88},
+        {0,8,24},{0,9,144},{131,7,59},{0,8,120},{0,8,56},{0,9,208},
+        {129,7,17},{0,8,104},{0,8,40},{0,9,176},{0,8,8},{0,8,136},
+        {0,8,72},{0,9,240},{128,7,4},{0,8,84},{0,8,20},{133,8,227},
+        {131,7,43},{0,8,116},{0,8,52},{0,9,200},{129,7,13},{0,8,100},
+        {0,8,36},{0,9,168},{0,8,4},{0,8,132},{0,8,68},{0,9,232},
+        {128,7,8},{0,8,92},{0,8,28},{0,9,152},{132,7,83},{0,8,124},
+        {0,8,60},{0,9,216},{130,7,23},{0,8,108},{0,8,44},{0,9,184},
+        {0,8,12},{0,8,140},{0,8,76},{0,9,248},{128,7,3},{0,8,82},
+        {0,8,18},{133,8,163},{131,7,35},{0,8,114},{0,8,50},{0,9,196},
+        {129,7,11},{0,8,98},{0,8,34},{0,9,164},{0,8,2},{0,8,130},
+        {0,8,66},{0,9,228},{128,7,7},{0,8,90},{0,8,26},{0,9,148},
+        {132,7,67},{0,8,122},{0,8,58},{0,9,212},{130,7,19},{0,8,106},
+        {0,8,42},{0,9,180},{0,8,10},{0,8,138},{0,8,74},{0,9,244},
+        {128,7,5},{0,8,86},{0,8,22},{65,8,0},{131,7,51},{0,8,118},
+        {0,8,54},{0,9,204},{129,7,15},{0,8,102},{0,8,38},{0,9,172},
+        {0,8,6},{0,8,134},{0,8,70},{0,9,236},{128,7,9},{0,8,94},
+        {0,8,30},{0,9,156},{132,7,99},{0,8,126},{0,8,62},{0,9,220},
+        {130,7,27},{0,8,110},{0,8,46},{0,9,188},{0,8,14},{0,8,142},
+        {0,8,78},{0,9,252},{96,7,0},{0,8,81},{0,8,17},{133,8,131},
+        {130,7,31},{0,8,113},{0,8,49},{0,9,194},{128,7,10},{0,8,97},
+        {0,8,33},{0,9,162},{0,8,1},{0,8,129},{0,8,65},{0,9,226},
+        {128,7,6},{0,8,89},{0,8,25},{0,9,146},{131,7,59},{0,8,121},
+        {0,8,57},{0,9,210},{129,7,17},{0,8,105},{0,8,41},{0,9,178},
+        {0,8,9},{0,8,137},{0,8,73},{0,9,242},{128,7,4},{0,8,85},
+        {0,8,21},{144,8,3},{131,7,43},{0,8,117},{0,8,53},{0,9,202},
+        {129,7,13},{0,8,101},{0,8,37},{0,9,170},{0,8,5},{0,8,133},
+        {0,8,69},{0,9,234},{128,7,8},{0,8,93},{0,8,29},{0,9,154},
+        {132,7,83},{0,8,125},{0,8,61},{0,9,218},{130,7,23},{0,8,109},
+        {0,8,45},{0,9,186},{0,8,13},{0,8,141},{0,8,77},{0,9,250},
+        {128,7,3},{0,8,83},{0,8,19},{133,8,195},{131,7,35},{0,8,115},
+        {0,8,51},{0,9,198},{129,7,11},{0,8,99},{0,8,35},{0,9,166},
+        {0,8,3},{0,8,131},{0,8,67},{0,9,230},{128,7,7},{0,8,91},
+        {0,8,27},{0,9,150},{132,7,67},{0,8,123},{0,8,59},{0,9,214},
+        {130,7,19},{0,8,107},{0,8,43},{0,9,182},{0,8,11},{0,8,139},
+        {0,8,75},{0,9,246},{128,7,5},{0,8,87},{0,8,23},{77,8,0},
+        {131,7,51},{0,8,119},{0,8,55},{0,9,206},{129,7,15},{0,8,103},
+        {0,8,39},{0,9,174},{0,8,7},{0,8,135},{0,8,71},{0,9,238},
+        {128,7,9},{0,8,95},{0,8,31},{0,9,158},{132,7,99},{0,8,127},
+        {0,8,63},{0,9,222},{130,7,27},{0,8,111},{0,8,47},{0,9,190},
+        {0,8,15},{0,8,143},{0,8,79},{0,9,254},{96,7,0},{0,8,80},
+        {0,8,16},{132,8,115},{130,7,31},{0,8,112},{0,8,48},{0,9,193},
+        {128,7,10},{0,8,96},{0,8,32},{0,9,161},{0,8,0},{0,8,128},
+        {0,8,64},{0,9,225},{128,7,6},{0,8,88},{0,8,24},{0,9,145},
+        {131,7,59},{0,8,120},{0,8,56},{0,9,209},{129,7,17},{0,8,104},
+        {0,8,40},{0,9,177},{0,8,8},{0,8,136},{0,8,72},{0,9,241},
+        {128,7,4},{0,8,84},{0,8,20},{133,8,227},{131,7,43},{0,8,116},
+        {0,8,52},{0,9,201},{129,7,13},{0,8,100},{0,8,36},{0,9,169},
+        {0,8,4},{0,8,132},{0,8,68},{0,9,233},{128,7,8},{0,8,92},
+        {0,8,28},{0,9,153},{132,7,83},{0,8,124},{0,8,60},{0,9,217},
+        {130,7,23},{0,8,108},{0,8,44},{0,9,185},{0,8,12},{0,8,140},
+        {0,8,76},{0,9,249},{128,7,3},{0,8,82},{0,8,18},{133,8,163},
+        {131,7,35},{0,8,114},{0,8,50},{0,9,197},{129,7,11},{0,8,98},
+        {0,8,34},{0,9,165},{0,8,2},{0,8,130},{0,8,66},{0,9,229},
+        {128,7,7},{0,8,90},{0,8,26},{0,9,149},{132,7,67},{0,8,122},
+        {0,8,58},{0,9,213},{130,7,19},{0,8,106},{0,8,42},{0,9,181},
+        {0,8,10},{0,8,138},{0,8,74},{0,9,245},{128,7,5},{0,8,86},
+        {0,8,22},{65,8,0},{131,7,51},{0,8,118},{0,8,54},{0,9,205},
+        {129,7,15},{0,8,102},{0,8,38},{0,9,173},{0,8,6},{0,8,134},
+        {0,8,70},{0,9,237},{128,7,9},{0,8,94},{0,8,30},{0,9,157},
+        {132,7,99},{0,8,126},{0,8,62},{0,9,221},{130,7,27},{0,8,110},
+        {0,8,46},{0,9,189},{0,8,14},{0,8,142},{0,8,78},{0,9,253},
+        {96,7,0},{0,8,81},{0,8,17},{133,8,131},{130,7,31},{0,8,113},
+        {0,8,49},{0,9,195},{128,7,10},{0,8,97},{0,8,33},{0,9,163},
+        {0,8,1},{0,8,129},{0,8,65},{0,9,227},{128,7,6},{0,8,89},
+        {0,8,25},{0,9,147},{131,7,59},{0,8,121},{0,8,57},{0,9,211},
+        {129,7,17},{0,8,105},{0,8,41},{0,9,179},{0,8,9},{0,8,137},
+        {0,8,73},{0,9,243},{128,7,4},{0,8,85},{0,8,21},{144,8,3},
+        {131,7,43},{0,8,117},{0,8,53},{0,9,203},{129,7,13},{0,8,101},
+        {0,8,37},{0,9,171},{0,8,5},{0,8,133},{0,8,69},{0,9,235},
+        {128,7,8},{0,8,93},{0,8,29},{0,9,155},{132,7,83},{0,8,125},
+        {0,8,61},{0,9,219},{130,7,23},{0,8,109},{0,8,45},{0,9,187},
+        {0,8,13},{0,8,141},{0,8,77},{0,9,251},{128,7,3},{0,8,83},
+        {0,8,19},{133,8,195},{131,7,35},{0,8,115},{0,8,51},{0,9,199},
+        {129,7,11},{0,8,99},{0,8,35},{0,9,167},{0,8,3},{0,8,131},
+        {0,8,67},{0,9,231},{128,7,7},{0,8,91},{0,8,27},{0,9,151},
+        {132,7,67},{0,8,123},{0,8,59},{0,9,215},{130,7,19},{0,8,107},
+        {0,8,43},{0,9,183},{0,8,11},{0,8,139},{0,8,75},{0,9,247},
+        {128,7,5},{0,8,87},{0,8,23},{77,8,0},{131,7,51},{0,8,119},
+        {0,8,55},{0,9,207},{129,7,15},{0,8,103},{0,8,39},{0,9,175},
+        {0,8,7},{0,8,135},{0,8,71},{0,9,239},{128,7,9},{0,8,95},
+        {0,8,31},{0,9,159},{132,7,99},{0,8,127},{0,8,63},{0,9,223},
+        {130,7,27},{0,8,111},{0,8,47},{0,9,191},{0,8,15},{0,8,143},
+        {0,8,79},{0,9,255}
+    };
+
+    static const code distfix[32] = {
+        {128,5,1},{135,5,257},{131,5,17},{139,5,4097},{129,5,5},
+        {137,5,1025},{133,5,65},{141,5,16385},{128,5,3},{136,5,513},
+        {132,5,33},{140,5,8193},{130,5,9},{138,5,2049},{134,5,129},
+        {142,5,32769},{128,5,2},{135,5,385},{131,5,25},{139,5,6145},
+        {129,5,7},{137,5,1537},{133,5,97},{141,5,24577},{128,5,4},
+        {136,5,769},{132,5,49},{140,5,12289},{130,5,13},{138,5,3073},
+        {134,5,193},{142,5,49153}
+    };

contrib/infback9/inflate9.h

@@ -0,0 +1,47 @@
+/* inflate9.h -- internal inflate state definition
+ * Copyright (C) 1995-2003 Mark Adler
+ * For conditions of distribution and use, see copyright notice in zlib.h
+ */
+
+/* WARNING: this file should *not* be used by applications. It is
+   part of the implementation of the compression library and is
+   subject to change. Applications should only use zlib.h.
+ */
+
+/* Possible inflate modes between inflate() calls */
+typedef enum {
+        TYPE,       /* i: waiting for type bits, including last-flag bit */
+        STORED,     /* i: waiting for stored size (length and complement) */
+        TABLE,      /* i: waiting for dynamic block table lengths */
+            LEN,        /* i: waiting for length/lit code */
+    DONE,       /* finished check, done -- remain here until reset */
+    BAD         /* got a data error -- remain here until reset */
+} inflate_mode;
+
+/*
+    State transitions between above modes -
+
+    (most modes can go to the BAD mode -- not shown for clarity)
+
+    Read deflate blocks:
+            TYPE -> STORED or TABLE or LEN or DONE
+            STORED -> TYPE
+            TABLE -> LENLENS -> CODELENS -> LEN
+    Read deflate codes:
+                LEN -> LEN or TYPE
+ */
+
+/* state maintained between inflate() calls.  Approximately 7K bytes. */
+struct inflate_state {
+        /* sliding window */
+    unsigned char FAR *window;  /* allocated sliding window, if needed */
+        /* dynamic table building */
+    unsigned ncode;             /* number of code length code lengths */
+    unsigned nlen;              /* number of length code lengths */
+    unsigned ndist;             /* number of distance code lengths */
+    unsigned have;              /* number of code lengths in lens[] */
+    code FAR *next;             /* next available space in codes[] */
+    unsigned short lens[320];   /* temporary storage for code lengths */
+    unsigned short work[288];   /* work area for code table building */
+    code codes[ENOUGH];         /* space for code tables */
+};

contrib/infback9/inftree9.c

@@ -0,0 +1,323 @@
+/* inftree9.c -- generate Huffman trees for efficient decoding
+ * Copyright (C) 1995-2003 Mark Adler
+ * For conditions of distribution and use, see copyright notice in zlib.h
+ */
+
+#include "zutil.h"
+#include "inftree9.h"
+
+#define MAXBITS 15
+
+const char inflate9_copyright[] =
+   " inflate9 1.2.0.7 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
+  include such an acknowledgment, I would appreciate that you keep this
+  copyright string in the executable of your product.
+ */
+
+/*
+   Build a set of tables to decode the provided canonical Huffman code.
+   The code lengths are lens[0..codes-1].  The result starts at *table,
+   whose indices are 0..2^bits-1.  work is a writable array of at least
+   lens shorts, which is used as a work area.  type is the type of code
+   to be generated, CODES, LENS, or DISTS.  On return, zero is success,
+   -1 is an invalid code, and +1 means that ENOUGH isn't enough.  table
+   on return points to the next available entry's address.  bits is the
+   requested root table index bits, and on return it is the actual root
+   table index bits.  It will differ if the request is greater than the
+   longest code or if it is less than the shortest code.
+ */
+int inflate_table9(type, lens, codes, table, bits, work)
+codetype type;
+unsigned short FAR *lens;
+unsigned codes;
+code FAR * FAR *table;
+unsigned FAR *bits;
+unsigned short FAR *work;
+{
+    unsigned len;               /* a code's length in bits */
+    unsigned sym;               /* index of code symbols */
+    unsigned min, max;          /* minimum and maximum code lengths */
+    unsigned root;              /* number of index bits for root table */
+    unsigned curr;              /* number of index bits for current table */
+    unsigned drop;              /* code bits to drop for sub-table */
+    int left;                   /* number of prefix codes available */
+    unsigned used;              /* code entries in table used */
+    unsigned huff;              /* Huffman code */
+    unsigned incr;              /* for incrementing code, index */
+    unsigned fill;              /* index for replicating entries */
+    unsigned low;               /* low bits for current root entry */
+    unsigned mask;              /* mask for low root bits */
+    code this;                  /* table entry for duplication */
+    code FAR *next;             /* next available space in table */
+    const unsigned short FAR *base;     /* base value table to use */
+    const unsigned short FAR *extra;    /* extra bits table to use */
+    int end;                    /* use base and extra for symbol > end */
+    unsigned short count[MAXBITS+1];    /* number of codes of each length */
+    unsigned short offs[MAXBITS+1];     /* offsets in table for each length */
+    static const unsigned short lbase[31] = { /* Length codes 257..285 base */
+        3, 4, 5, 6, 7, 8, 9, 10, 11, 13, 15, 17,
+        19, 23, 27, 31, 35, 43, 51, 59, 67, 83, 99, 115,
+        131, 163, 195, 227, 3, 0, 0};
+    static const unsigned short lext[31] = { /* Length codes 257..285 extra */
+        128, 128, 128, 128, 128, 128, 128, 128, 129, 129, 129, 129,
+        130, 130, 130, 130, 131, 131, 131, 131, 132, 132, 132, 132,
+        133, 133, 133, 133, 144, 71, 69};
+    static const unsigned short dbase[32] = { /* Distance codes 0..31 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, 8193, 12289, 16385, 24577, 32769, 49153};
+    static const unsigned short dext[32] = { /* Distance codes 0..31 extra */
+        128, 128, 128, 128, 129, 129, 130, 130, 131, 131, 132, 132,
+        133, 133, 134, 134, 135, 135, 136, 136, 137, 137, 138, 138,
+        139, 139, 140, 140, 141, 141, 142, 142};
+
+    /*
+       Process a set of code lengths to create a canonical Huffman code.  The
+       code lengths are lens[0..codes-1].  Each length corresponds to the
+       symbols 0..codes-1.  The Huffman code is generated by first sorting the
+       symbols by length from short to long, and retaining the symbol order
+       for codes with equal lengths.  Then the code starts with all zero bits
+       for the first code of the shortest length, and the codes are integer
+       increments for the same length, and zeros are appended as the length
+       increases.  For the deflate format, these bits are stored backwards
+       from their more natural integer increment ordering, and so when the
+       decoding tables are built in the large loop below, the integer codes
+       are incremented backwards.
+
+       This routine assumes, but does not check, that all of the entries in
+       lens[] are in the range 0..MAXBITS.  The caller must assure this.
+       1..MAXBITS is interpreted as that code length.  zero means that that
+       symbol does not occur in this code.
+
+       The codes are sorted by computing a count of codes for each length,
+       creating from that a table of starting indices for each length in the
+       sorted table, and then entering the symbols in order in the sorted
+       table.  The sorted table is work[], with that space being provided by
+       the caller.
+
+       The length counts are used for other purposes as well, i.e. finding
+       the minimum and maximum length codes, determining if there are any
+       codes at all, checking for a valid set of lengths, and looking ahead
+       at length counts to determine sub-table sizes when building the
+       decoding tables.
+     */
+
+    /* accumulate lengths for codes (assumes lens[] all in 0..MAXBITS) */
+    for (len = 0; len <= MAXBITS; len++)
+        count[len] = 0;
+    for (sym = 0; sym < codes; sym++)
+        count[lens[sym]]++;
+
+    /* bound code lengths, force root to be within code lengths */
+    root = *bits;
+    for (max = MAXBITS; max >= 1; max--)
+        if (count[max] != 0) break;
+    if (root > max) root = max;
+    if (max == 0) return -1;            /* no codes! */
+    for (min = 1; min <= MAXBITS; min++)
+        if (count[min] != 0) break;
+    if (root < min) root = min;
+
+    /* check for an over-subscribed or incomplete set of lengths */
+    left = 1;
+    for (len = 1; len <= MAXBITS; len++) {
+        left <<= 1;
+        left -= count[len];
+        if (left < 0) return -1;        /* over-subscribed */
+    }
+    if (left > 0 && (type == CODES || (codes - count[0] != 1)))
+        return -1;                      /* incomplete set */
+
+    /* generate offsets into symbol table for each length for sorting */
+    offs[1] = 0;
+    for (len = 1; len < MAXBITS; len++)
+        offs[len + 1] = offs[len] + count[len];
+
+    /* sort symbols by length, by symbol order within each length */
+    for (sym = 0; sym < codes; sym++)
+        if (lens[sym] != 0) work[offs[lens[sym]]++] = (unsigned short)sym;
+
+    /*
+       Create and fill in decoding tables.  In this loop, the table being
+       filled is at next and has curr index bits.  The code being used is huff
+       with length len.  That code is converted to an index by dropping drop
+       bits off of the bottom.  For codes where len is less than drop + curr,
+       those top drop + curr - len bits are incremented through all values to
+       fill the table with replicated entries.
+
+       root is the number of index bits for the root table.  When len exceeds
+       root, sub-tables are created pointed to by the root entry with an index
+       of the low root bits of huff.  This is saved in low to check for when a
+       new sub-table should be started.  drop is zero when the root table is
+       being filled, and drop is root when sub-tables are being filled.
+
+       When a new sub-table is needed, it is necessary to look ahead in the
+       code lengths to determine what size sub-table is needed.  The length
+       counts are used for this, and so count[] is decremented as codes are
+       entered in the tables.
+
+       used keeps track of how many table entries have been allocated from the
+       provided *table space.  It is checked when a LENS table is being made
+       against the space in *table, ENOUGH, minus the maximum space needed by
+       the worst case distance code, MAXD.  This should never happen, but the
+       sufficiency of ENOUGH has not been proven exhaustively, hence the check.
+       This assumes that when type == LENS, bits == 9.
+
+       sym increments through all symbols, and the loop terminates when
+       all codes of length max, i.e. all codes, have been processed.  This
+       routine permits incomplete codes, so another loop after this one fills
+       in the rest of the decoding tables with invalid code markers.
+     */
+
+    /* set up for code type */
+    switch (type) {
+    case CODES:
+        base = extra = work;    /* dummy value--not used */
+        end = 19;
+        break;
+    case LENS:
+        base = lbase;
+        base -= 257;
+        extra = lext;
+        extra -= 257;
+        end = 256;
+        break;
+    default:            /* DISTS */
+        base = dbase;
+        extra = dext;
+        end = -1;
+    }
+
+    /* initialize state for loop */
+    huff = 0;                   /* starting code */
+    sym = 0;                    /* starting code symbol */
+    len = min;                  /* starting code length */
+    next = *table;              /* current table to fill in */
+    curr = root;                /* current table index bits */
+    drop = 0;                   /* current bits to drop from code for index */
+    low = (unsigned)(-1);       /* trigger new sub-table when len > root */
+    used = 1U << root;          /* use root table entries */
+    mask = used - 1;            /* mask for comparing low */
+
+    /* check available table space */
+    if (type == LENS && used >= ENOUGH - MAXD)
+        return 1;
+
+    /* process all codes and make table entries */
+    for (;;) {
+        /* create table entry */
+        this.bits = (unsigned char)(len - drop);
+        if ((int)(work[sym]) < end) {
+            this.op = (unsigned char)0;
+            this.val = work[sym];
+        }
+        else if ((int)(work[sym]) > end) {
+            this.op = (unsigned char)(extra[work[sym]]);
+            this.val = base[work[sym]];
+        }
+        else {
+            this.op = (unsigned char)(32 + 64);         /* end of block */
+            this.val = 0;
+        }
+
+        /* replicate for those indices with low len bits equal to huff */
+        incr = 1U << (len - drop);
+        fill = 1U << curr;
+        do {
+            fill -= incr;
+            next[(huff >> drop) + fill] = this;
+        } while (fill != 0);
+
+        /* backwards increment the len-bit code huff */
+        incr = 1U << (len - 1);
+        while (huff & incr)
+            incr >>= 1;
+        if (incr != 0) {
+            huff &= incr - 1;
+            huff += incr;
+        }
+        else
+            huff = 0;
+
+        /* go to next symbol, update count, len */
+        sym++;
+        if (--(count[len]) == 0) {
+            if (len == max) break;
+            len = lens[work[sym]];
+        }
+
+        /* create new sub-table if needed */
+        if (len > root && (huff & mask) != low) {
+            /* if first time, transition to sub-tables */
+            if (drop == 0)
+                drop = root;
+
+            /* increment past last table */
+            next += 1U << curr;
+
+            /* determine length of next table */
+            curr = len - drop;
+            left = (int)(1 << curr);
+            while (curr + drop < max) {
+                left -= count[curr + drop];
+                if (left <= 0) break;
+                curr++;
+                left <<= 1;
+            }
+
+            /* check for enough space */
+            used += 1U << curr;
+            if (type == LENS && used >= ENOUGH - MAXD)
+                return 1;
+
+            /* point entry in root table to sub-table */
+            low = huff & mask;
+            (*table)[low].op = (unsigned char)curr;
+            (*table)[low].bits = (unsigned char)root;
+            (*table)[low].val = (unsigned short)(next - *table);
+        }
+    }
+
+    /*
+       Fill in rest of table for incomplete codes.  This loop is similar to the
+       loop above in incrementing huff for table indices.  It is assumed that
+       len is equal to curr + drop, so there is no loop needed to increment
+       through high index bits.  When the current sub-table is filled, the loop
+       drops back to the root table to fill in any remaining entries there.
+     */
+    this.op = (unsigned char)64;                /* invalid code marker */
+    this.bits = (unsigned char)(len - drop);
+    this.val = (unsigned short)0;
+    while (huff != 0) {
+        /* when done with sub-table, drop back to root table */
+        if (drop != 0 && (huff & mask) != low) {
+            drop = 0;
+            len = root;
+            next = *table;
+            curr = root;
+            this.bits = (unsigned char)len;
+        }
+
+        /* put invalid code marker in table */
+        next[huff >> drop] = this;
+
+        /* backwards increment the len-bit code huff */
+        incr = 1U << (len - 1);
+        while (huff & incr)
+            incr >>= 1;
+        if (incr != 0) {
+            huff &= incr - 1;
+            huff += incr;
+        }
+        else
+            huff = 0;
+    }
+
+    /* set return parameters */
+    *table += used;
+    *bits = root;
+    return 0;
+}

contrib/infback9/inftree9.h

@@ -0,0 +1,55 @@
+/* inftree9.h -- header to use inftree9.c
+ * Copyright (C) 1995-2003 Mark Adler
+ * For conditions of distribution and use, see copyright notice in zlib.h
+ */
+
+/* WARNING: this file should *not* be used by applications. It is
+   part of the implementation of the compression library and is
+   subject to change. Applications should only use zlib.h.
+ */
+
+/* Structure for decoding tables.  Each entry provides either the
+   information needed to do the operation requested by the code that
+   indexed that table entry, or it provides a pointer to another
+   table that indexes more bits of the code.  op indicates whether
+   the entry is a pointer to another table, a literal, a length or
+   distance, an end-of-block, or an invalid code.  For a table
+   pointer, the low four bits of op is the number of index bits of
+   that table.  For a length or distance, the low four bits of op
+   is the number of extra bits to get after the code.  bits is
+   the number of bits in this code or part of the code to drop off
+   of the bit buffer.  val is the actual byte to output in the case
+   of a literal, the base length or distance, or the offset from
+   the current table to the next table.  Each entry is four bytes. */
+typedef struct {
+    unsigned char op;           /* operation, extra bits, table bits */
+    unsigned char bits;         /* bits in this part of the code */
+    unsigned short val;         /* offset in table or code value */
+} code;
+
+/* op values as set by inflate_table():
+    00000000 - literal
+    0000tttt - table link, tttt != 0 is the number of table index bits
+    100eeeee - length or distance, eeee is the number of extra bits
+    01100000 - end of block
+    01000000 - invalid code
+ */
+
+/* Maximum size of dynamic tree.  The maximum found in a long but non-
+   exhaustive search was 1004 code structures (850 for length/literals
+   and 154 for distances, the latter actually the result of an
+   exhaustive search).  The true maximum is not known, but the value
+   below is more than safe. */
+#define ENOUGH 1440
+#define MAXD 154
+
+/* Type of code to build for inftable() */
+typedef enum {
+    CODES,
+    LENS,
+    DISTS
+} codetype;
+
+extern int inflate_table9 OF((codetype type, unsigned short FAR *lens,
+                             unsigned codes, code FAR * FAR *table,
+                             unsigned FAR *bits, unsigned short FAR *work));

contrib/inflate86/inffast.S

@@ -61,7 +61,7 @@
  */
 #if ! defined( GAS_COFF ) && ! defined( GAS_ELF )
 
-#if defined( __CYGWIN__ )
+#if defined( WIN32 ) || defined( __CYGWIN__ )
 #define GAS_COFF /* windows object format */
 #else
 #define GAS_ELF
@@ -151,14 +151,14 @@
  */
 #define mode_state     0   /* state->mode */
 #define wsize_state    32  /* state->wsize */
-#define write_state    36  /* state->write */
+#define write_state    40  /* state->write */
-#define window_state   40  /* state->window */
+#define window_state   44  /* state->window */
-#define hold_state     44  /* state->hold */
+#define hold_state     48  /* state->hold */
-#define bits_state     48  /* state->bits */
+#define bits_state     52  /* state->bits */
-#define lencode_state  64  /* state->lencode */
+#define lencode_state  68  /* state->lencode */
-#define distcode_state 68  /* state->distcode */
+#define distcode_state 72  /* state->distcode */
-#define lenbits_state  72  /* state->lenbits */
+#define lenbits_state  76  /* state->lenbits */
-#define distbits_state 76  /* state->distbits */
+#define distbits_state 80  /* state->distbits */
 
 /*
  * inflate_fast's activation record

contrib/iostream/zfstream.cpp

@@ -1,5 +1,4 @@
 
-#include <memory.h>
 #include "zfstream.h"
 
 gzfilebuf::gzfilebuf() :
@@ -23,9 +22,7 @@ gzfilebuf *gzfilebuf::open( const char *name,
     return NULL;
 
   char char_mode[10];
-  char *p;
+  char *p = char_mode;
-  memset(char_mode,'\0',10);
-  p = char_mode;
 
   if ( io_mode & ios::in ) {
     mode = ios::in;
@@ -48,6 +45,9 @@ gzfilebuf *gzfilebuf::open( const char *name,
     *p++ = '9';
   }
 
+  // Put the end-of-string indicator
+  *p = '\0';
+
   if ( (file = gzopen(name, char_mode)) == NULL )
     return NULL;
 
@@ -64,9 +64,7 @@ gzfilebuf *gzfilebuf::attach( int file_descriptor,
     return NULL;
 
   char char_mode[10];
-  char *p;
+  char *p = char_mode;
-  memset(char_mode,'\0',10);
-  p = char_mode;
 
   if ( io_mode & ios::in ) {
     mode = ios::in;
@@ -89,6 +87,9 @@ gzfilebuf *gzfilebuf::attach( int file_descriptor,
     *p++ = '9';
   }
 
+  // Put the end-of-string indicator
+  *p = '\0';
+
   if ( (file = gzdopen(file_descriptor, char_mode)) == NULL )
     return NULL;
 
@@ -112,13 +113,13 @@ gzfilebuf *gzfilebuf::close() {
 
 }
 
-int gzfilebuf::setcompressionlevel( short comp_level ) {
+int gzfilebuf::setcompressionlevel( int comp_level ) {
 
   return gzsetparams(file, comp_level, -2);
 
 }
 
-int gzfilebuf::setcompressionstrategy( short comp_strategy ) {
+int gzfilebuf::setcompressionstrategy( int comp_strategy ) {
 
   return gzsetparams(file, -2, comp_strategy);
 
@@ -282,10 +283,9 @@ void gzfilestream_common::close() {
 
 }
 
-gzfilebuf *gzfilestream_common::rdbuf() {
+gzfilebuf *gzfilestream_common::rdbuf()
-
+{
   return &buffer;
-
 }
 
 gzifstream::gzifstream() :

contrib/iostream/zfstream.h

@@ -1,6 +1,6 @@
 
-#ifndef _zfstream_h
+#ifndef zfstream_h
-#define _zfstream_h
+#define zfstream_h
 
 #include <fstream.h>
 #include "zlib.h"
@@ -16,8 +16,8 @@ public:
   gzfilebuf *attach( int file_descriptor, int io_mode );
   gzfilebuf *close();
 
-  int setcompressionlevel( short comp_level );
+  int setcompressionlevel( int comp_level );
-  int setcompressionstrategy( short comp_strategy );
+  int setcompressionstrategy( int comp_strategy );
 
   inline int is_open() const { return (file !=NULL); }
 
@@ -98,18 +98,19 @@ private:
   T val;
 };
 
-template<class T> gzofstream &operator<<(gzofstream &s,
+template<class T> gzofstream &operator<<(gzofstream &s, const gzomanip<T> &m)
-					 const gzomanip<T> &m) {
+{
   return (*m.func)(s, m.val);
-  
 }
 
-inline gzofstream &setcompressionlevel( gzofstream &s, int l ) {
+inline gzofstream &setcompressionlevel( gzofstream &s, int l )
+{
   (s.rdbuf())->setcompressionlevel(l);
   return s;
 }
 
-inline gzofstream &setcompressionstrategy( gzofstream &s, int l ) {
+inline gzofstream &setcompressionstrategy( gzofstream &s, int l )
+{
   (s.rdbuf())->setcompressionstrategy(l);
   return s;
 }
@@ -125,18 +126,3 @@ inline gzomanip<int> setcompressionstrategy(int l)
 }
 
 #endif
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-

contrib/masm686/match.asm

@@ -0,0 +1,408 @@
+
+; match.asm -- Pentium-Pro optimized version of longest_match()
+;
+; Updated for zlib 1.1.3 and converted to MASM 6.1x
+; Copyright (C) 2000 Dan Higdon <hdan@kinesoft.com>
+;                    and Chuck Walbourn <chuckw@kinesoft.com>
+; Corrections by Cosmin Truta <cosmint@cs.ubbcluj.ro>
+;
+; This is free software; you can redistribute it and/or modify it
+; under the terms of the GNU General Public License.
+
+; Based on match.S
+; Written for zlib 1.1.2
+; Copyright (C) 1998 Brian Raiter <breadbox@muppetlabs.com>
+
+	.686P
+	.MODEL	FLAT
+
+;===========================================================================
+; EQUATES
+;===========================================================================
+
+MAX_MATCH	EQU 258
+MIN_MATCH	EQU 3
+MIN_LOOKAHEAD	EQU (MAX_MATCH + MIN_MATCH + 1)
+MAX_MATCH_8	EQU ((MAX_MATCH + 7) AND (NOT 7))
+
+;===========================================================================
+; STRUCTURES
+;===========================================================================
+
+; This STRUCT assumes a 4-byte alignment
+
+DEFLATE_STATE	STRUCT
+ds_strm			dd ?
+ds_status		dd ?
+ds_pending_buf		dd ?
+ds_pending_buf_size	dd ?
+ds_pending_out		dd ?
+ds_pending		dd ?
+ds_wrap			dd ?
+ds_data_type		db ?
+ds_method		db ?
+			db ?	; padding
+			db ?	; padding
+ds_last_flush		dd ?
+ds_w_size		dd ?	; used
+ds_w_bits		dd ?
+ds_w_mask		dd ?	; used
+ds_window		dd ?	; used
+ds_window_size		dd ?
+ds_prev			dd ?	; used
+ds_head			dd ?
+ds_ins_h		dd ?
+ds_hash_size		dd ?
+ds_hash_bits		dd ?
+ds_hash_mask		dd ?
+ds_hash_shift		dd ?
+ds_block_start		dd ?
+ds_match_length		dd ?	; used
+ds_prev_match		dd ?	; used
+ds_match_available	dd ?
+ds_strstart		dd ?	; used
+ds_match_start		dd ?	; used
+ds_lookahead		dd ?	; used
+ds_prev_length		dd ?	; used
+ds_max_chain_length	dd ?	; used
+ds_max_laxy_match	dd ?
+ds_level		dd ?
+ds_strategy		dd ?
+ds_good_match		dd ?	; used
+ds_nice_match		dd ?	; used
+
+; Don't need anymore of the struct for match
+DEFLATE_STATE	ENDS
+
+;===========================================================================
+; CODE
+;===========================================================================
+_TEXT	SEGMENT
+
+;---------------------------------------------------------------------------
+; match_init
+;---------------------------------------------------------------------------
+	ALIGN	4
+PUBLIC	_match_init
+_match_init	PROC
+	; no initialization needed
+	ret
+_match_init	ENDP
+
+;---------------------------------------------------------------------------
+; uInt longest_match(deflate_state *deflatestate, IPos curmatch)
+;---------------------------------------------------------------------------
+	ALIGN	4
+
+PUBLIC	_longest_match
+_longest_match	PROC
+
+; Since this code uses EBP for a scratch register, the stack frame must
+; be manually constructed and referenced relative to the ESP register.
+
+; Stack image
+; Variables
+chainlenwmask	=  0	; high word: current chain len
+			; low word: s->wmask
+window		=  4	; local copy of s->window
+windowbestlen	=  8	; s->window + bestlen
+scanend		= 12	; last two bytes of string
+scanstart	= 16	; first two bytes of string
+scanalign	= 20	; dword-misalignment of string
+nicematch	= 24	; a good enough match size
+bestlen		= 28	; size of best match so far
+scan		= 32	; ptr to string wanting match
+varsize		= 36	; number of bytes (also offset to last saved register)
+
+; Saved Registers (actually pushed into place)
+ebx_save	= 36
+edi_save	= 40
+esi_save	= 44
+ebp_save	= 48
+
+; Parameters
+retaddr		= 52
+deflatestate	= 56
+curmatch	= 60
+
+; Save registers that the compiler may be using
+	push	ebp
+	push	edi
+	push	esi
+	push	ebx
+
+; Allocate local variable space
+	sub	esp,varsize
+
+; 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, [esp+deflatestate]
+ASSUME	edx:PTR DEFLATE_STATE
+
+	mov	ecx, [esp+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].ds_prev_length
+	mov	ebx, [edx].ds_good_match
+	cmp	eax, ebx
+	mov	eax, [edx].ds_w_mask
+	mov	ebx, [edx].ds_max_chain_length
+	jl	SHORT 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	[esp+chainlenwmask], ebx
+
+; if ((uInt)nice_match > s->lookahead) nice_match = s->lookahead;
+
+	mov	eax, [edx].ds_nice_match
+	mov	ebx, [edx].ds_lookahead
+	cmp	ebx, eax
+	jl	SHORT LookaheadLess
+	mov	ebx, eax
+LookaheadLess:
+	mov	[esp+nicematch], ebx
+
+;/* register Bytef *scan = s->window + s->strstart;                     */
+
+	mov	esi, [edx].ds_window
+	mov	[esp+window], esi
+	mov	ebp, [edx].ds_strstart
+	lea	edi, [esi+ebp]
+	mov	[esp+scan],edi
+
+;/* Determine how many bytes the scan ptr is off from being             */
+;/* dword-aligned.                                                      */
+
+	mov	eax, edi
+	neg	eax
+	and	eax, 3
+	mov	[esp+scanalign], eax
+
+;/* IPos limit = s->strstart > (IPos)MAX_DIST(s) ?                      */
+;/*     s->strstart - (IPos)MAX_DIST(s) : NIL;                          */
+
+	mov	eax, [edx].ds_w_size
+	sub	eax, MIN_LOOKAHEAD
+	sub	ebp, eax
+	jg	SHORT LimitPositive
+	xor	ebp, ebp
+LimitPositive:
+
+;/* int best_len = s->prev_length;                                      */
+
+	mov	eax, [edx].ds_prev_length
+	mov	[esp+bestlen], eax
+
+;/* Store the sum of s->window + best_len in %esi locally, and in %esi. */
+
+	add	esi, eax
+	mov	[esp+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	[esp+scanstart], ebx
+	movzx	ebx, WORD PTR[eax+edi-1]
+	mov	[esp+scanend], ebx
+	mov	edi, [edx].ds_prev
+
+;/* Jump into the main loop.                                            */
+
+	mov	edx, [esp+chainlenwmask]
+	jmp	SHORT LoopEntry
+
+;/* 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
+; */
+
+	ALIGN	4
+LookupLoop:
+	and	ecx, edx
+	movzx	ecx, WORD PTR[edi+ecx*2]
+	cmp	ecx, ebp
+	jbe	LeaveNow
+	sub	edx, 000010000H
+	js	LeaveNow
+
+LoopEntry:
+	movzx	eax, WORD PTR[esi+ecx-1]
+	cmp	eax, ebx
+	jnz	SHORT LookupLoop
+
+	mov	eax, [esp+window]
+	movzx	eax, WORD PTR[eax+ecx]
+	cmp	eax, [esp+scanstart]
+	jnz	SHORT LookupLoop
+
+;/* Store the current value of chainlen.                                */
+
+	mov	[esp+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, [esp+window]
+	mov	edi, [esp+scan]
+	add	esi, ecx
+	mov	eax, [esp+scanalign]
+	mov	edx, -MAX_MATCH_8
+	lea	edi, [edi+eax+MAX_MATCH_8]
+	lea	esi, [esi+eax+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, DWORD PTR[esi+edx]
+	xor	eax, DWORD PTR[edi+edx]
+	jnz	SHORT LeaveLoopCmps
+
+	mov	eax, DWORD PTR[esi+edx+4]
+	xor	eax, DWORD PTR[edi+edx+4]
+	jnz	SHORT LeaveLoopCmps4
+
+	add	edx, 8
+	jnz	SHORT LoopCmps
+	jmp	LenMaximum
+	ALIGN	4
+
+LeaveLoopCmps4:
+	add	edx, 4
+
+LeaveLoopCmps:
+	test	eax, 00000FFFFH
+	jnz	SHORT 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, [esp+scan]
+	sub	eax, edi
+	cmp	eax, MAX_MATCH
+	jge	SHORT 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, [esp+deflatestate]
+	mov	ebx, [esp+bestlen]
+	cmp	eax, ebx
+	jg	SHORT LongerMatch
+	mov	esi, [esp+windowbestlen]
+	mov	edi, [edx].ds_prev
+	mov	ebx, [esp+scanend]
+	mov	edx, [esp+chainlenwmask]
+	jmp	LookupLoop
+	ALIGN	4
+
+;/*         s->match_start = cur_match;                                 */
+;/*         best_len = len;                                             */
+;/*         if (len >= nice_match) break;                               */
+;/*         scan_end = *(ushf*)(scan+best_len-1);                       */
+
+LongerMatch:
+	mov	ebx, [esp+nicematch]
+	mov	[esp+bestlen], eax
+	mov	[edx].ds_match_start, ecx
+	cmp	eax, ebx
+	jge	SHORT LeaveNow
+	mov	esi, [esp+window]
+	add	esi, eax
+	mov	[esp+windowbestlen], esi
+	movzx	ebx, WORD PTR[edi+eax-1]
+	mov	edi, [edx].ds_prev
+	mov	[esp+scanend], ebx
+	mov	edx, [esp+chainlenwmask]
+	jmp	LookupLoop
+	ALIGN	4
+
+;/* Accept the current string, with the maximum possible length.        */
+
+LenMaximum:
+	mov	edx, [esp+deflatestate]
+	mov	DWORD PTR[esp+bestlen], MAX_MATCH
+	mov	[edx].ds_match_start, ecx
+
+;/* if ((uInt)best_len <= s->lookahead) return (uInt)best_len;          */
+;/* return s->lookahead;                                                */
+
+LeaveNow:
+	mov	edx, [esp+deflatestate]
+	mov	ebx, [esp+bestlen]
+	mov	eax, [edx].ds_lookahead
+	cmp	ebx, eax
+	jg	SHORT LookaheadRet
+	mov	eax, ebx
+LookaheadRet:
+
+; Restore the stack and return from whence we came.
+
+	add	esp, varsize
+	pop	ebx
+	pop	esi
+	pop	edi
+	pop	ebp
+	ret
+
+_longest_match	ENDP
+
+_TEXT	ENDS
+END

contrib/masmx86/gvmat32.asm

@@ -892,8 +892,8 @@ LookaheadRet:
 
 		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!
+; Your can freely use gvmat32 in any free or commercial app 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
+	db     0dh,0ah,"asm686 with masm, optimised assembly code from Brian Raiter, written 1998",0dh,0ah
 
 IFDEF NOUNDERLINE
 longest_match_686   endp

contrib/masmx86/gvmat32c.c

@@ -10,9 +10,6 @@
 
 #include "deflate.h"
 
-#undef FAR
-//#include <windows.h>
-
 #ifdef ASMV
 #define NIL 0
 

contrib/masmx86/mkasm.bat

@@ -0,0 +1,3 @@
+cl /I..\.. /O2 /c gvmat32c.c
+ml /coff /Zi /c /Flgvmat32.lst gvmat32.asm
+ml /coff /Zi /c /Flinffas32.lst inffas32.asm

contrib/masmx86/readme.txt

@@ -0,0 +1,21 @@
+
+Summary
+-------
+This directory contains ASM implementations of the functions
+longest_match() and inflate_fast().
+
+
+Use instructions
+----------------
+Copy these files into the zlib source directory, then run the
+appropriate makefile, as suggested below.
+
+
+Build instructions
+------------------
+* With Microsoft C and MASM:
+nmake -f win32/Makefile.msc LOC="-DASMV -DASMINF" OBJA="gvmat32c.obj gvmat32.obj inffas32.obj"
+
+* With Borland C and TASM:
+make -f win32/Makefile.bor LOCAL_ZLIB="-DASMV -DASMINF" OBJA="gvmat32c.obj gvmat32.obj inffas32.obj" OBJPA="+gvmat32c.obj+gvmat32.obj+inffas32.obj"
+

contrib/minizip/ChangeLogUnzip

@@ -1,3 +1,7 @@
+Change in 1.00: (10 sept 03)
+- rename to 1.00
+- cosmetic code change
+
 Change in 0.22: (19 May 03)
 - crypting support (unless you define NOCRYPT)
 - append file in existing zipfile

contrib/minizip/crypt.h

@@ -1,3 +1,31 @@
+/* crypt.h -- base code for crypt/uncrypt ZIPfile
+
+
+   Version 1.00, September 10th, 2003
+
+   Copyright (C) 1998-2003 Gilles Vollant
+
+   This code is a modified version of crypting code in Infozip distribution
+
+   The encryption/decryption parts of this source code (as opposed to the
+   non-echoing password parts) were originally written in Europe.  The
+   whole source package can be freely distributed, including from the USA.
+   (Prior to January 2000, re-export from the US was a violation of US law.)
+
+   This encryption code is a direct transcription of the algorithm from
+   Roger Schlafly, described by Phil Katz in the file appnote.txt.  This
+   file (appnote.txt) is distributed with the PKZIP program (even in the
+   version without encryption capabilities).
+
+   If you don't need crypting in your application, just define symbols
+   NOCRYPT and NOUNCRYPT.
+
+   This code support the "Traditional PKWARE Encryption".
+
+   The new AES encryption added on Zip format by Winzip (see the page
+   http://www.winzip.com/aes_info.htm ) and PKWare PKZip 5.x Strong
+   Encryption is not supported.
+*/
 
 #define CRC32(c, b) ((*(pcrc_32_tab+(((int)(c) ^ (b)) & 0xff))) ^ ((c) >> 8))
 
@@ -56,7 +84,7 @@ static void init_keys(const char* passwd,unsigned long* pkeys,const unsigned lon
 #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 */
+#    define ZCR_SEED2 3141592654UL     /* use PI as default pattern */
 #  endif
 
 static int crypthead(passwd, buf, bufSize, pkeys, pcrc_32_tab, crcForCrypting)

contrib/minizip/ioapi.c

@@ -1,7 +1,7 @@
 /* ioapi.c -- IO base function header for compress/uncompress .zip
    files using zlib + zip or unzip API
 
-   Version 0.22, May 19th, 2003
+   Version 1.00, September 10th, 2003
 
    Copyright (C) 1998-2003 Gilles Vollant
 */

contrib/minizip/ioapi.h

@@ -1,7 +1,7 @@
 /* ioapi.h -- IO base function header for compress/uncompress .zip
    files using zlib + zip or unzip API
 
-   Version 0.22, May 19th, 2003
+   Version 1.00, September 10th, 2003
 
    Copyright (C) 1998-2003 Gilles Vollant
 */

contrib/minizip/iowin32.c

@@ -2,12 +2,11 @@
    files using zlib + zip or unzip API
    This IO API version uses the Win32 API (for Microsoft Windows)
 
-   Version 0.22, May 19th, 2003
+   Version 1.00, September 10th, 2003
 
    Copyright (C) 1998-2003 Gilles Vollant
 */
 
-#include <windows.h>
 #include <stdlib.h>
 
 #include "zlib.h"
@@ -49,7 +48,7 @@ long ZCALLBACK win32_seek_file_func OF((
    uLong offset,
    int origin));
 
-long ZCALLBACK win32_close_file_func OF((
+int ZCALLBACK win32_close_file_func OF((
    voidpf opaque,
    voidpf stream));
 
@@ -225,11 +224,11 @@ long ZCALLBACK win32_seek_file_func (opaque, stream, offset, origin)
     return ret;
 }
 
-long ZCALLBACK win32_close_file_func (opaque, stream)
+int ZCALLBACK win32_close_file_func (opaque, stream)
    voidpf opaque;
    voidpf stream;
 {
-    long ret=-1;
+    int ret=-1;
 
     if (stream!=NULL)
     {

contrib/minizip/iowin32.h

@@ -2,18 +2,20 @@
    files using zlib + zip or unzip API
    This IO API version uses the Win32 API (for Microsoft Windows)
 
-   Version 0.22, May 19th, 2003
+   Version 1.00, September 10th, 2003
 
    Copyright (C) 1998-2003 Gilles Vollant
 */
 
+#include <windows.h>
+
+
 #ifdef __cplusplus
 extern "C" {
 #endif
 
 void fill_win32_filefunc OF((zlib_filefunc_def* pzlib_filefunc_def));
 
-
 #ifdef __cplusplus
 }
 #endif

contrib/minizip/miniunz.c

@@ -140,7 +140,7 @@ int makedir (newdir)
 
 void do_banner()
 {
-    printf("MiniUnz 0.22, demo of zLib + Unz package written by Gilles Vollant\n");
+    printf("MiniUnz 1.00, demo of zLib + Unz package written by Gilles Vollant\n");
     printf("more info at http://www.winimage.com/zLibDll/unzip.html\n\n");
 }
 
@@ -508,28 +508,28 @@ int main(argc,argv)
     if (zipfilename!=NULL)
     {
 
-        #ifdef USEWIN32IOAPI
+#        ifdef USEWIN32IOAPI
         zlib_filefunc_def ffunc;
-        #endif
+#        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
+#        ifdef USEWIN32IOAPI
         fill_win32_filefunc(&ffunc);
         uf = unzOpen2(zipfilename,&ffunc);
-        #else
+#        else
         uf = unzOpen(zipfilename);
-        #endif
+#        endif
         if (uf==NULL)
         {
             strcat(filename_try,".zip");
-            #ifdef USEWIN32IOAPI
+#            ifdef USEWIN32IOAPI
             uf = unzOpen2(filename_try,&ffunc);
-            #else
+#            else
             uf = unzOpen(filename_try);
-            #endif
+#            endif
         }
     }
 

contrib/minizip/minizip.c

@@ -120,7 +120,7 @@ int check_exist_file(filename)
 
 void do_banner()
 {
-    printf("MiniZip 0.22, demo of zLib + Zip package written by Gilles Vollant\n");
+    printf("MiniZip 1.00, demo of zLib + Zip package written by Gilles Vollant\n");
     printf("more info at http://www.winimage.com/zLibDll/unzip.html\n\n");
 }
 
@@ -287,13 +287,13 @@ int main(argc,argv)
     {
         zipFile zf;
         int errclose;
-        #ifdef USEWIN32IOAPI
+#        ifdef USEWIN32IOAPI
         zlib_filefunc_def ffunc;
         fill_win32_filefunc(&ffunc);
         zf = zipOpen2(filename_try,(opt_overwrite==2) ? 2 : 0,NULL,&ffunc);
-        #else
+#        else
         zf = zipOpen(filename_try,(opt_overwrite==2) ? 2 : 0);
-        #endif
+#        endif
 
         if (zf == NULL)
         {

contrib/minizip/unzip.c

@@ -1,5 +1,5 @@
 /* unzip.c -- IO for uncompress .zip files using zlib
-   Version 0.22, May 19th, 2003
+   Version 1.00, September 10th, 2003
 
    Copyright (C) 1998-2003 Gilles Vollant
 
@@ -59,10 +59,10 @@ woven in by Terry Thorsen 1/2003.
 /* compile with -Dlocal if your debugger can't find static symbols */
 
 
-
+#ifndef CASESENSITIVITYDEFAULT_NO
-#if !defined(unix) && !defined(CASESENSITIVITYDEFAULT_YES) && \
+#  if !defined(unix) && !defined(CASESENSITIVITYDEFAULT_YES)
-                      !defined(CASESENSITIVITYDEFAULT_NO)
+#    define CASESENSITIVITYDEFAULT_NO
-#define CASESENSITIVITYDEFAULT_NO
+#  endif
 #endif
 
 
@@ -88,7 +88,7 @@ woven in by Terry Thorsen 1/2003.
 
 
 const char unz_copyright[] =
-   " unzip 0.22 Copyright 1998-2003 Gilles Vollant - http://www.winimage.com/zLibDll";
+   " unzip 1.00 Copyright 1998-2003 Gilles Vollant - http://www.winimage.com/zLibDll";
 
 /* unz_file_info_interntal contain internal info about a file in zipfile*/
 typedef struct unz_file_info_internal_s
@@ -145,10 +145,10 @@ typedef struct
     file_in_zip_read_info_s* pfile_in_zip_read; /* structure about the current
                                         file if we are decompressing it */
     int encrypted;
-    #ifndef NOUNCRYPT
+#    ifndef NOUNCRYPT
     unsigned long keys[3];     /* keys defining the pseudo-random sequence */
     const unsigned long* pcrc_32_tab;
-    #endif
+#    endif
 } unz_s;
 
 
@@ -1056,12 +1056,12 @@ extern int ZEXPORT unzOpenCurrentFile3 (file, method, level, raw, password)
     file_in_zip_read_info_s* pfile_in_zip_read_info;
     uLong offset_local_extrafield;  /* offset of the local extra field */
     uInt  size_local_extrafield;    /* size of the local extra field */
-    #ifndef NOUNCRYPT
+#    ifndef NOUNCRYPT
     char source[12];
-    #else
+#    else
     if (password != NULL)
         return UNZ_PARAMERROR;
-    #endif
+#    endif
 
     if (file==NULL)
         return UNZ_PARAMERROR;
@@ -1159,7 +1159,7 @@ extern int ZEXPORT unzOpenCurrentFile3 (file, method, level, raw, password)
 
     s->pfile_in_zip_read = pfile_in_zip_read_info;
 
-    #ifndef NOUNCRYPT
+#    ifndef NOUNCRYPT
     if (password != NULL)
     {
         int i;
@@ -1179,7 +1179,7 @@ extern int ZEXPORT unzOpenCurrentFile3 (file, method, level, raw, password)
         s->pfile_in_zip_read->pos_in_zipfile+=12;
         s->encrypted=1;
     }
-    #endif
+#    endif
 
 
     return UNZ_OK;
@@ -1271,7 +1271,7 @@ extern int ZEXPORT unzReadCurrentFile  (file, buf, len)
                 return UNZ_ERRNO;
 
 
-            #ifndef NOUNCRYPT
+#            ifndef NOUNCRYPT
             if(s->encrypted)
             {
                 uInt i;
@@ -1280,7 +1280,7 @@ extern int ZEXPORT unzReadCurrentFile  (file, buf, len)
                       zdecode(s->keys,s->pcrc_32_tab,
                               pfile_in_zip_read_info->read_buffer[i]);
             }
-            #endif
+#            endif
 
 
             pfile_in_zip_read_info->pos_in_zipfile += uReadThis;

contrib/minizip/unzip.h

@@ -1,5 +1,5 @@
 /* unzip.h -- IO for uncompress .zip files using zlib
-   Version 0.22, May 19th, 2003
+   Version 1.00, September 10th, 2003
 
    Copyright (C) 1998-2003 Gilles Vollant
 

contrib/minizip/zip.c

@@ -1,5 +1,7 @@
 /* zip.c -- IO on .zip files using zlib
-   Version 0.22, May 19th, 2003
+   Version 1.00, September 10th, 2003
+
+   Copyright (C) 1998-2003 Gilles Vollant
 
    Read zip.h for more info
 */
@@ -75,7 +77,7 @@
 #endif
 #endif
 const char zip_copyright[] =
-   " zip 0.22 Copyright 1998-2003 Gilles Vollant - http://www.winimage.com/zLibDll";
+   " zip 1.00 Copyright 1998-2003 Gilles Vollant - http://www.winimage.com/zLibDll";
 
 
 #define SIZEDATA_INDATABLOCK (4096-(4*4))
@@ -511,7 +513,7 @@ extern zipFile ZEXPORT zipOpen2 (pathname, append, globalcomment, pzlib_filefunc
     }
 
     /* now we add file in a zipfile */
-    #ifndef NO_ADDFILEINEXISTINGZIP
+#    ifndef NO_ADDFILEINEXISTINGZIP
     if (append == APPEND_STATUS_ADDINZIP)
     {
         uLong byte_before_the_zipfile;/* byte before the zipfile, (>0 for sfx)*/
@@ -621,7 +623,7 @@ extern zipFile ZEXPORT zipOpen2 (pathname, append, globalcomment, pzlib_filefunc
                   offset_central_dir+byte_before_the_zipfile,ZLIB_FILEFUNC_SEEK_SET)!=0)
             err=ZIP_ERRNO;
     }
-    #endif /* !NO_ADDFILEINEXISTINGZIP*/
+#    endif /* !NO_ADDFILEINEXISTINGZIP*/
 
     if (err != ZIP_OK)
     {
@@ -671,10 +673,10 @@ extern int ZEXPORT zipOpenNewFileInZip3 (file, filename, zipfi,
     uInt i;
     int err = ZIP_OK;
 
-    #ifdef NOCRYPT
+#    ifdef NOCRYPT
     if (password != NULL)
         return ZIP_PARAMERROR;
-    #endif
+#    endif
 
     if (file == NULL)
         return ZIP_PARAMERROR;
@@ -828,7 +830,7 @@ extern int ZEXPORT zipOpenNewFileInZip3 (file, filename, zipfi,
         if (err==Z_OK)
             zi->ci.stream_initialised = 1;
     }
-    #ifndef NOCRYPT
+#    ifndef NOCRYPT
     zi->ci.crypt_header_size = 0;
     if ((err==Z_OK) && (password != NULL))
     {
@@ -844,7 +846,7 @@ extern int ZEXPORT zipOpenNewFileInZip3 (file, filename, zipfi,
         if (ZWRITE(zi->z_filefunc,zi->filestream,bufHead,sizeHead) != sizeHead)
                 err = ZIP_ERRNO;
     }
-    #endif
+#    endif
 
     if (err==Z_OK)
         zi->in_opened_file_inzip = 1;
@@ -1035,9 +1037,9 @@ extern int ZEXPORT zipCloseFileInZipRaw (file, uncompressed_size, crc32)
         uncompressed_size = (uLong)zi->ci.stream.total_in;
     }
     compressed_size = (uLong)zi->ci.stream.total_out;
-    #ifndef NOCRYPT
+#    ifndef NOCRYPT
     compressed_size += zi->ci.crypt_header_size;
-    #endif
+#    endif
 
     ziplocal_putValue_inmemory(zi->ci.central_header+16,crc32,4); /*crc*/
     ziplocal_putValue_inmemory(zi->ci.central_header+20,

contrib/minizip/zip.h

@@ -1,5 +1,5 @@
 /* zip.h -- IO for compress .zip files using zlib
-   Version 0.22, May 19th, 2003
+   Version 1.00, September 10th, 2003
 
    Copyright (C) 1998-2003 Gilles Vollant
 

contrib/pascal/example.pas

@@ -0,0 +1,599 @@
+(* 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
+ *
+ * Pascal translation
+ * Copyright (C) 1998 by Jacques Nomssi Nzali.
+ * For conditions of distribution and use, see copyright notice in readme.txt
+ *
+ * Adaptation to the zlibpas interface
+ * Copyright (C) 2003 by Cosmin Truta.
+ * For conditions of distribution and use, see copyright notice in readme.txt
+ *)
+
+program example;
+
+{$DEFINE TEST_COMPRESS}
+{DO NOT $DEFINE TEST_GZIO}
+{$DEFINE TEST_DEFLATE}
+{$DEFINE TEST_INFLATE}
+{$DEFINE TEST_FLUSH}
+{$DEFINE TEST_SYNC}
+{$DEFINE TEST_DICT}
+
+uses SysUtils, zlibpas;
+
+const TESTFILE = 'foo.gz';
+
+(* "hello world" would be more standard, but the repeated "hello"
+ * stresses the compression code better, sorry...
+ *)
+const hello: PChar = 'hello, hello!';
+
+const dictionary: PChar = 'hello';
+
+var dictId: LongInt; (* Adler32 value of the dictionary *)
+
+procedure CHECK_ERR(err: Integer; msg: String);
+begin
+  if err <> Z_OK then
+  begin
+    WriteLn(msg, ' error: ', err);
+    Halt(1);
+  end;
+end;
+
+procedure EXIT_ERR(const msg: String);
+begin
+  WriteLn('Error: ', msg);
+  Halt(1);
+end;
+
+(* ===========================================================================
+ * Test compress and uncompress
+ *)
+{$IFDEF TEST_COMPRESS}
+procedure test_compress(compr: Pointer; comprLen: LongInt;
+                        uncompr: Pointer; uncomprLen: LongInt);
+var err: Integer;
+    len: LongInt;
+begin
+  len := StrLen(hello)+1;
+
+  err := compress(compr, comprLen, hello, len);
+  CHECK_ERR(err, 'compress');
+
+  StrCopy(PChar(uncompr), 'garbage');
+
+  err := uncompress(uncompr, uncomprLen, compr, comprLen);
+  CHECK_ERR(err, 'uncompress');
+
+  if StrComp(PChar(uncompr), hello) <> 0 then
+    EXIT_ERR('bad uncompress')
+  else
+    WriteLn('uncompress(): ', PChar(uncompr));
+end;
+{$ENDIF}
+
+(* ===========================================================================
+ * Test read/write of .gz files
+ *)
+{$IFDEF TEST_GZIO}
+procedure test_gzio(const fname: PChar; (* compressed file name *)
+                    uncompr: Pointer;
+                    uncomprLen: LongInt);
+var err: Integer;
+    len: Integer;
+    zfile: gzFile;
+    pos: LongInt;
+begin
+  len := StrLen(hello)+1;
+
+  zfile := gzopen(fname, 'wb');
+  if zfile = NIL then
+  begin
+    WriteLn('gzopen error');
+    Halt(1);
+  end;
+  gzputc(zfile, 'h');
+  if gzputs(zfile, 'ello') <> 4 then
+  begin
+    WriteLn('gzputs err: ', gzerror(zfile, err));
+    Halt(1);
+  end;
+  {$IFDEF GZ_FORMAT_STRING}
+  if gzprintf(zfile, ', %s!', 'hello') <> 8 then
+  begin
+    WriteLn('gzprintf err: ', gzerror(zfile, err));
+    Halt(1);
+  end;
+  {$ELSE}
+  if gzputs(zfile, ', hello!') <> 8 then
+  begin
+    WriteLn('gzputs err: ', gzerror(zfile, err));
+    Halt(1);
+  end;
+  {$ENDIF}
+  gzseek(zfile, 1, SEEK_CUR); (* add one zero byte *)
+  gzclose(zfile);
+
+  zfile := gzopen(fname, 'rb');
+  if zfile = NIL then
+  begin
+    WriteLn('gzopen error');
+    Halt(1);
+  end;
+
+  StrCopy(PChar(uncompr), 'garbage');
+
+  if gzread(zfile, uncompr, uncomprLen) <> len then
+  begin
+    WriteLn('gzread err: ', gzerror(zfile, err));
+    Halt(1);
+  end;
+  if StrComp(PChar(uncompr), hello) <> 0 then
+  begin
+    WriteLn('bad gzread: ', PChar(uncompr));
+    Halt(1);
+  end
+  else
+    WriteLn('gzread(): ', PChar(uncompr));
+
+  pos := gzseek(zfile, -8, SEEK_CUR);
+  if (pos <> 6) or (gztell(zfile) <> pos) then
+  begin
+    WriteLn('gzseek error, pos=', pos, ', gztell=', gztell(zfile));
+    Halt(1);
+  end;
+
+  if gzgetc(zfile) <> ' ' then
+  begin
+    WriteLn('gzgetc error');
+    Halt(1);
+  end;
+
+  if gzungetc(' ', zfile) <> ' ' then
+  begin
+    WriteLn('gzungetc error');
+    Halt(1);
+  end;
+
+  gzgets(zfile, PChar(uncompr), uncomprLen);
+  uncomprLen := StrLen(PChar(uncompr));
+  if uncomprLen <> 7 then (* " hello!" *)
+  begin
+    WriteLn('gzgets err after gzseek: ', gzerror(zfile, err));
+    Halt(1);
+  end;
+  if StrComp(PChar(uncompr), hello + 6) <> 0 then
+  begin
+    WriteLn('bad gzgets after gzseek');
+    Halt(1);
+  end
+  else
+    WriteLn('gzgets() after gzseek: ', PChar(uncompr));
+
+  gzclose(zfile);
+end;
+{$ENDIF}
+
+(* ===========================================================================
+ * Test deflate with small buffers
+ *)
+{$IFDEF TEST_DEFLATE}
+procedure test_deflate(compr: Pointer; comprLen: LongInt);
+var c_stream: z_stream; (* compression stream *)
+    err: Integer;
+    len: LongInt;
+begin
+  len := StrLen(hello)+1;
+
+  c_stream.zalloc := NIL;
+  c_stream.zfree := NIL;
+  c_stream.opaque := NIL;
+
+  err := deflateInit(c_stream, Z_DEFAULT_COMPRESSION);
+  CHECK_ERR(err, 'deflateInit');
+
+  c_stream.next_in := hello;
+  c_stream.next_out := compr;
+
+  while (c_stream.total_in <> len) and
+        (c_stream.total_out < comprLen) do
+  begin
+    c_stream.avail_out := 1; { force small buffers }
+    c_stream.avail_in := 1;
+    err := deflate(c_stream, Z_NO_FLUSH);
+    CHECK_ERR(err, 'deflate');
+  end;
+
+  (* Finish the stream, still forcing small buffers: *)
+  while TRUE do
+  begin
+    c_stream.avail_out := 1;
+    err := deflate(c_stream, Z_FINISH);
+    if err = Z_STREAM_END then
+      break;
+    CHECK_ERR(err, 'deflate');
+  end;
+
+  err := deflateEnd(c_stream);
+  CHECK_ERR(err, 'deflateEnd');
+end;
+{$ENDIF}
+
+(* ===========================================================================
+ * Test inflate with small buffers
+ *)
+{$IFDEF TEST_INFLATE}
+procedure test_inflate(compr: Pointer; comprLen : LongInt;
+                       uncompr: Pointer; uncomprLen : LongInt);
+var err: Integer;
+    d_stream: z_stream; (* decompression stream *)
+begin
+  StrCopy(PChar(uncompr), 'garbage');
+
+  d_stream.zalloc := NIL;
+  d_stream.zfree := NIL;
+  d_stream.opaque := NIL;
+
+  d_stream.next_in := compr;
+  d_stream.avail_in := 0;
+  d_stream.next_out := uncompr;
+
+  err := inflateInit(d_stream);
+  CHECK_ERR(err, 'inflateInit');
+
+  while (d_stream.total_out < uncomprLen) and
+        (d_stream.total_in < comprLen) do
+  begin
+    d_stream.avail_out := 1; (* force small buffers *)
+    d_stream.avail_in := 1;
+    err := inflate(d_stream, Z_NO_FLUSH);
+    if err = Z_STREAM_END then
+      break;
+    CHECK_ERR(err, 'inflate');
+  end;
+
+  err := inflateEnd(d_stream);
+  CHECK_ERR(err, 'inflateEnd');
+
+  if StrComp(PChar(uncompr), hello) <> 0 then
+    EXIT_ERR('bad inflate')
+  else
+    WriteLn('inflate(): ', PChar(uncompr));
+end;
+{$ENDIF}
+
+(* ===========================================================================
+ * Test deflate with large buffers and dynamic change of compression level
+ *)
+{$IFDEF TEST_DEFLATE}
+procedure test_large_deflate(compr: Pointer; comprLen: LongInt;
+                             uncompr: Pointer; uncomprLen: LongInt);
+var c_stream: z_stream; (* compression stream *)
+    err: Integer;
+begin
+  c_stream.zalloc := NIL;
+  c_stream.zfree := NIL;
+  c_stream.opaque := NIL;
+
+  err := deflateInit(c_stream, Z_BEST_SPEED);
+  CHECK_ERR(err, 'deflateInit');
+
+  c_stream.next_out := compr;
+  c_stream.avail_out := Integer(comprLen);
+
+  (* At this point, uncompr is still mostly zeroes, so it should compress
+   * very well:
+   *)
+  c_stream.next_in := uncompr;
+  c_stream.avail_in := Integer(uncomprLen);
+  err := deflate(c_stream, Z_NO_FLUSH);
+  CHECK_ERR(err, 'deflate');
+  if c_stream.avail_in <> 0 then
+    EXIT_ERR('deflate not greedy');
+
+  (* Feed in already compressed data and switch to no compression: *)
+  deflateParams(c_stream, Z_NO_COMPRESSION, Z_DEFAULT_STRATEGY);
+  c_stream.next_in := compr;
+  c_stream.avail_in := Integer(comprLen div 2);
+  err := deflate(c_stream, Z_NO_FLUSH);
+  CHECK_ERR(err, 'deflate');
+
+  (* Switch back to compressing mode: *)
+  deflateParams(c_stream, Z_BEST_COMPRESSION, Z_FILTERED);
+  c_stream.next_in := uncompr;
+  c_stream.avail_in := Integer(uncomprLen);
+  err := deflate(c_stream, Z_NO_FLUSH);
+  CHECK_ERR(err, 'deflate');
+
+  err := deflate(c_stream, Z_FINISH);
+  if err <> Z_STREAM_END then
+    EXIT_ERR('deflate should report Z_STREAM_END');
+
+  err := deflateEnd(c_stream);
+  CHECK_ERR(err, 'deflateEnd');
+end;
+{$ENDIF}
+
+(* ===========================================================================
+ * Test inflate with large buffers
+ *)
+{$IFDEF TEST_INFLATE}
+procedure test_large_inflate(compr: Pointer; comprLen: LongInt;
+                             uncompr: Pointer; uncomprLen: LongInt);
+var err: Integer;
+    d_stream: z_stream; (* decompression stream *)
+begin
+  StrCopy(PChar(uncompr), 'garbage');
+
+  d_stream.zalloc := NIL;
+  d_stream.zfree := NIL;
+  d_stream.opaque := NIL;
+
+  d_stream.next_in := compr;
+  d_stream.avail_in := Integer(comprLen);
+
+  err := inflateInit(d_stream);
+  CHECK_ERR(err, 'inflateInit');
+
+  while TRUE do
+  begin
+    d_stream.next_out := uncompr;            (* discard the output *)
+    d_stream.avail_out := Integer(uncomprLen);
+    err := inflate(d_stream, Z_NO_FLUSH);
+    if err = Z_STREAM_END then
+      break;
+    CHECK_ERR(err, 'large inflate');
+  end;
+
+  err := inflateEnd(d_stream);
+  CHECK_ERR(err, 'inflateEnd');
+
+  if d_stream.total_out <> 2 * uncomprLen + comprLen div 2 then
+  begin
+    WriteLn('bad large inflate: ', d_stream.total_out);
+    Halt(1);
+  end
+  else
+    WriteLn('large_inflate(): OK');
+end;
+{$ENDIF}
+
+(* ===========================================================================
+ * Test deflate with full flush
+ *)
+{$IFDEF TEST_FLUSH}
+procedure test_flush(compr: Pointer; var comprLen : LongInt);
+var c_stream: z_stream; (* compression stream *)
+    err: Integer;
+    len: Integer;
+begin
+  len := StrLen(hello)+1;
+
+  c_stream.zalloc := NIL;
+  c_stream.zfree := NIL;
+  c_stream.opaque := NIL;
+
+  err := deflateInit(c_stream, Z_DEFAULT_COMPRESSION);
+  CHECK_ERR(err, 'deflateInit');
+
+  c_stream.next_in := hello;
+  c_stream.next_out := compr;
+  c_stream.avail_in := 3;
+  c_stream.avail_out := Integer(comprLen);
+  err := deflate(c_stream, Z_FULL_FLUSH);
+  CHECK_ERR(err, 'deflate');
+
+  Inc(PByteArray(compr)^[3]); (* force an error in first compressed block *)
+  c_stream.avail_in := len - 3;
+
+  err := deflate(c_stream, Z_FINISH);
+  if err <> Z_STREAM_END then
+    CHECK_ERR(err, 'deflate');
+
+  err := deflateEnd(c_stream);
+  CHECK_ERR(err, 'deflateEnd');
+
+  comprLen := c_stream.total_out;
+end;
+{$ENDIF}
+
+(* ===========================================================================
+ * Test inflateSync()
+ *)
+{$IFDEF TEST_SYNC}
+procedure test_sync(compr: Pointer; comprLen: LongInt;
+                    uncompr: Pointer; uncomprLen : LongInt);
+var err: Integer;
+    d_stream: z_stream; (* decompression stream *)
+begin
+  StrCopy(PChar(uncompr), 'garbage');
+
+  d_stream.zalloc := NIL;
+  d_stream.zfree := NIL;
+  d_stream.opaque := NIL;
+
+  d_stream.next_in := compr;
+  d_stream.avail_in := 2; (* just read the zlib header *)
+
+  err := inflateInit(d_stream);
+  CHECK_ERR(err, 'inflateInit');
+
+  d_stream.next_out := uncompr;
+  d_stream.avail_out := Integer(uncomprLen);
+
+  inflate(d_stream, Z_NO_FLUSH);
+  CHECK_ERR(err, 'inflate');
+
+  d_stream.avail_in := Integer(comprLen-2);   (* read all compressed data *)
+  err := inflateSync(d_stream);               (* but skip the damaged part *)
+  CHECK_ERR(err, 'inflateSync');
+
+  err := inflate(d_stream, Z_FINISH);
+  if err <> Z_DATA_ERROR then
+    EXIT_ERR('inflate should report DATA_ERROR');
+    (* Because of incorrect adler32 *)
+
+  err := inflateEnd(d_stream);
+  CHECK_ERR(err, 'inflateEnd');
+
+  WriteLn('after inflateSync(): hel', PChar(uncompr));
+end;
+{$ENDIF}
+
+(* ===========================================================================
+ * Test deflate with preset dictionary
+ *)
+{$IFDEF TEST_DICT}
+procedure test_dict_deflate(compr: Pointer; comprLen: LongInt);
+var c_stream: z_stream; (* compression stream *)
+    err: Integer;
+begin
+  c_stream.zalloc := NIL;
+  c_stream.zfree := NIL;
+  c_stream.opaque := NIL;
+
+  err := deflateInit(c_stream, Z_BEST_COMPRESSION);
+  CHECK_ERR(err, 'deflateInit');
+
+  err := deflateSetDictionary(c_stream, dictionary, StrLen(dictionary));
+  CHECK_ERR(err, 'deflateSetDictionary');
+
+  dictId := c_stream.adler;
+  c_stream.next_out := compr;
+  c_stream.avail_out := Integer(comprLen);
+
+  c_stream.next_in := hello;
+  c_stream.avail_in := StrLen(hello)+1;
+
+  err := deflate(c_stream, Z_FINISH);
+  if err <> Z_STREAM_END then
+    EXIT_ERR('deflate should report Z_STREAM_END');
+
+  err := deflateEnd(c_stream);
+  CHECK_ERR(err, 'deflateEnd');
+end;
+{$ENDIF}
+
+(* ===========================================================================
+ * Test inflate with a preset dictionary
+ *)
+{$IFDEF TEST_DICT}
+procedure test_dict_inflate(compr: Pointer; comprLen: LongInt;
+                            uncompr: Pointer; uncomprLen: LongInt);
+var err: Integer;
+    d_stream: z_stream; (* decompression stream *)
+begin
+  StrCopy(PChar(uncompr), 'garbage');
+
+  d_stream.zalloc := NIL;
+  d_stream.zfree := NIL;
+  d_stream.opaque := NIL;
+
+  d_stream.next_in := compr;
+  d_stream.avail_in := Integer(comprLen);
+
+  err := inflateInit(d_stream);
+  CHECK_ERR(err, 'inflateInit');
+
+  d_stream.next_out := uncompr;
+  d_stream.avail_out := Integer(uncomprLen);
+
+  while TRUE do
+  begin
+    err := inflate(d_stream, Z_NO_FLUSH);
+    if err = Z_STREAM_END then
+      break;
+    if err = Z_NEED_DICT then
+    begin
+      if d_stream.adler <> dictId then
+        EXIT_ERR('unexpected dictionary');
+      err := inflateSetDictionary(d_stream, dictionary, StrLen(dictionary));
+    end;
+    CHECK_ERR(err, 'inflate with dict');
+  end;
+
+  err := inflateEnd(d_stream);
+  CHECK_ERR(err, 'inflateEnd');
+
+  if StrComp(PChar(uncompr), hello) <> 0 then
+    EXIT_ERR('bad inflate with dict')
+  else
+    WriteLn('inflate with dictionary: ', PChar(uncompr));
+end;
+{$ENDIF}
+
+var compr, uncompr: Pointer;
+    comprLen, uncomprLen: LongInt;
+
+begin
+  if zlibVersion^ <> ZLIB_VERSION[1] then
+    EXIT_ERR('Incompatible zlib version');
+
+  WriteLn('zlib version: ', zlibVersion);
+  WriteLn('zlib compile flags: ', Format('0x%x', [zlibCompileFlags]));
+
+  comprLen := 10000 * SizeOf(Integer); (* don't overflow on MSDOS *)
+  uncomprLen := comprLen;
+  GetMem(compr, comprLen);
+  GetMem(uncompr, uncomprLen);
+  if (compr = NIL) or (uncompr = NIL) then
+    EXIT_ERR('Out of memory');
+  (* compr and uncompr are cleared to avoid reading uninitialized
+   * data and to ensure that uncompr compresses well.
+   *)
+  FillChar(compr^, comprLen, 0);
+  FillChar(uncompr^, uncomprLen, 0);
+
+  {$IFDEF TEST_COMPRESS}
+  WriteLn('** Testing compress');
+  test_compress(compr, comprLen, uncompr, uncomprLen);
+  {$ENDIF}
+
+  {$IFDEF TEST_GZIO}
+  WriteLn('** Testing gzio');
+  if ParamCount >= 1 then
+    test_gzio(ParamStr(1), uncompr, uncomprLen)
+  else
+    test_gzio(TESTFILE, uncompr, uncomprLen);
+  {$ENDIF}
+
+  {$IFDEF TEST_DEFLATE}
+  WriteLn('** Testing deflate with small buffers');
+  test_deflate(compr, comprLen);
+  {$ENDIF}
+  {$IFDEF TEST_INFLATE}
+  WriteLn('** Testing inflate with small buffers');
+  test_inflate(compr, comprLen, uncompr, uncomprLen);
+  {$ENDIF}
+
+  {$IFDEF TEST_DEFLATE}
+  WriteLn('** Testing deflate with large buffers');
+  test_large_deflate(compr, comprLen, uncompr, uncomprLen);
+  {$ENDIF}
+  {$IFDEF TEST_INFLATE}
+  WriteLn('** Testing inflate with large buffers');
+  test_large_inflate(compr, comprLen, uncompr, uncomprLen);
+  {$ENDIF}
+
+  {$IFDEF TEST_FLUSH}
+  WriteLn('** Testing deflate with full flush');
+  test_flush(compr, comprLen);
+  {$ENDIF}
+  {$IFDEF TEST_SYNC}
+  WriteLn('** Testing inflateSync');
+  test_sync(compr, comprLen, uncompr, uncomprLen);
+  {$ENDIF}
+  comprLen := uncomprLen;
+
+  {$IFDEF TEST_DICT}
+  WriteLn('** Testing deflate and inflate with preset dictionary');
+  test_dict_deflate(compr, comprLen);
+  test_dict_inflate(compr, comprLen, uncompr, uncomprLen);
+  {$ENDIF}
+
+  FreeMem(compr, comprLen);
+  FreeMem(uncompr, uncomprLen);
+end.

contrib/pascal/readme.txt

@@ -0,0 +1,76 @@
+
+This directory contains a Pascal (Delphi, Kylix) interface to the
+zlib data compression library.
+
+
+Directory listing
+=================
+
+zlibd32.mak     makefile for Borland C++
+example.pas     usage example of zlib
+zlibpas.pas     the Pascal interface to zlib
+readme.txt      this file
+
+
+Compatibility notes
+===================
+
+- Although the name "zlib" would have been more normal for the
+  zlibpas unit, this name is already taken by Borland's ZLib unit.
+  This is somehow unfortunate, because that unit is not a genuine
+  interface to the full-fledged zlib functionality, but a suite of
+  class wrappers around zlib streams.  Other essential features,
+  such as checksums, are missing.
+  It would have been more appropriate for that unit to have a name
+  like "ZStreams", or something similar.
+
+- The C and zlib-supplied types int, uInt, long, uLong, etc. are
+  translated directly into Pascal types of similar sizes (Integer,
+  LongInt, etc.), to avoid namespace pollution.  In particular,
+  there is no conversion of unsigned int into a Pascal unsigned
+  integer.  The Word type is non-portable and has the same size
+  (16 bits) both in a 16-bit and in a 32-bit environment, unlike
+  Integer.  Even if there is a 32-bit Cardinal type, there is no
+  real need for unsigned int in zlib under a 32-bit environment.
+
+- Except for the callbacks, the zlib function interfaces are
+  assuming the calling convention normally used in Pascal
+  (__pascal for DOS and Windows16, __fastcall for Windows32).
+  Since the cdecl keyword is used, the old Turbo Pascal does
+  not work with this interface.
+
+- The gz* function interfaces are not translated, to avoid
+  interfacing problems with the C runtime library.  Besides,
+    gzprintf(gzFile file, const char *format, ...)
+  cannot be translated into Pascal.
+
+
+Legal issues
+============
+
+The zlibpas interface is:
+  Copyright (C) 1995-2003 Jean-loup Gailly and Mark Adler.
+  Copyright (C) 1998 by Bob Dellaca.
+  Copyright (C) 2003 by Cosmin Truta.
+
+The example program is:
+  Copyright (C) 1995-2003 by Jean-loup Gailly.
+  Copyright (C) 1998,1999,2000 by Jacques Nomssi Nzali.
+  Copyright (C) 2003 by Cosmin Truta.
+
+  This software is provided 'as-is', without any express or implied
+  warranty.  In no event will the author be held liable for any damages
+  arising from the use of this software.
+
+  Permission is granted to anyone to use this software for any purpose,
+  including commercial applications, and to alter it and redistribute it
+  freely, subject to the following restrictions:
+
+  1. The origin of this software must not be misrepresented; you must not
+     claim that you wrote the original software. If you use this software
+     in a product, an acknowledgment in the product documentation would be
+     appreciated but is not required.
+  2. Altered source versions must be plainly marked as such, and must not be
+     misrepresented as being the original software.
+  3. This notice may not be removed or altered from any source distribution.
+

contrib/pascal/zlibd32.mak

@@ -0,0 +1,93 @@
+# Makefile for zlib
+# For use with Delphi and C++ Builder under Win32
+# Updated for zlib 1.2.x by Cosmin Truta
+
+# ------------ Borland C++ ------------
+
+# This project uses the Delphi (fastcall/register) calling convention:
+LOC = -DZEXPORT=__fastcall -DZEXPORTVA=__cdecl
+
+CC = bcc32
+LD = bcc32
+AR = tlib
+# do not use "-pr" in CFLAGS
+CFLAGS = -a -d -k- -O2 $(LOC)
+LDFLAGS =
+
+
+# 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)
+
+
+# testing
+test: example.exe minigzip.exe
+	example
+	echo hello world | minigzip | minigzip -d
+
+example.exe: example.obj $(ZLIB_LIB)
+	$(LD) $(LDFLAGS) example.obj $(ZLIB_LIB)
+
+minigzip.exe: minigzip.obj $(ZLIB_LIB)
+	$(LD) $(LDFLAGS) minigzip.obj $(ZLIB_LIB)
+
+
+# cleanup
+clean:
+	-del *.obj
+	-del *.exe
+	-del *.lib
+	-del *.tds
+	-del zlib.bak
+	-del foo.gz
+

contrib/pascal/zlibpas.pas

@@ -0,0 +1,234 @@
+(* zlibpas -- Pascal interface to the zlib data compression library
+ *
+ * Copyright (C) 2003 Cosmin Truta.
+ * Derived from original sources by Bob Dellaca.
+ * For conditions of distribution and use, see copyright notice in readme.txt
+ *)
+
+unit zlibpas;
+
+interface
+
+const
+  ZLIB_VERSION = '1.2.0';
+
+type
+  alloc_func = function(opaque: Pointer; items, size: Integer): Pointer;
+                 cdecl;
+  free_func  = procedure(opaque, address: Pointer);
+                 cdecl;
+
+  in_func    = function(opaque: Pointer; var buf: PByte): Integer;
+                 cdecl;
+  out_func   = function(opaque: Pointer; buf: PByte; size: Integer): Integer;
+                 cdecl;
+
+  z_streamp = ^z_stream;
+  z_stream = packed record
+    next_in: PChar;       (* next input byte *)
+    avail_in: Integer;    (* number of bytes available at next_in *)
+    total_in: LongInt;    (* total nb of input bytes read so far *)
+
+    next_out: PChar;      (* next output byte should be put there *)
+    avail_out: Integer;   (* remaining free space at next_out *)
+    total_out: LongInt;   (* total nb of bytes output so far *)
+
+    msg: PChar;           (* last error message, NULL if no error *)
+    state: Pointer;       (* not visible by applications *)
+
+    zalloc: alloc_func;   (* used to allocate the internal state *)
+    zfree: free_func;     (* used to free the internal state *)
+    opaque: Pointer;      (* private data object passed to zalloc and zfree *)
+
+    data_type: Integer;   (* best guess about the data type: ascii or binary *)
+    adler: LongInt;       (* adler32 value of the uncompressed data *)
+    reserved: LongInt;    (* reserved for future use *)
+  end;
+
+(* constants *)
+const
+  Z_NO_FLUSH      = 0;
+  Z_PARTIAL_FLUSH = 1;
+  Z_SYNC_FLUSH    = 2;
+  Z_FULL_FLUSH    = 3;
+  Z_FINISH        = 4;
+
+  Z_OK            =  0;
+  Z_STREAM_END    =  1;
+  Z_NEED_DICT     =  2;
+  Z_ERRNO         = -1;
+  Z_STREAM_ERROR  = -2;
+  Z_DATA_ERROR    = -3;
+  Z_MEM_ERROR     = -4;
+  Z_BUF_ERROR     = -5;
+  Z_VERSION_ERROR = -6;
+
+  Z_NO_COMPRESSION       =  0;
+  Z_BEST_SPEED           =  1;
+  Z_BEST_COMPRESSION     =  9;
+  Z_DEFAULT_COMPRESSION  = -1;
+
+  Z_FILTERED            = 1;
+  Z_HUFFMAN_ONLY        = 2;
+  Z_RLE                 = 3;
+  Z_DEFAULT_STRATEGY    = 0;
+
+  Z_BINARY   = 0;
+  Z_ASCII    = 1;
+  Z_UNKNOWN  = 2;
+
+  Z_DEFLATED = 8;
+
+(* basic functions *)
+function zlibVersion: PChar;
+function deflateInit(var strm: z_stream; level: Integer): Integer;
+function deflate(var strm: z_stream; flush: Integer): Integer;
+function deflateEnd(var strm: z_stream): Integer;
+function inflateInit(var strm: z_stream): Integer;
+function inflate(var strm: z_stream; flush: Integer): Integer;
+function inflateEnd(var strm: z_stream): Integer;
+
+(* advanced functions *)
+function deflateInit2(var strm: z_stream; level, method, windowBits,
+                      memLevel, strategy: Integer): Integer;
+function deflateSetDictionary(var strm: z_stream; const dictionary: PChar;
+                              dictLength: Integer): Integer;
+function deflateCopy(var dest, source: z_stream): Integer;
+function deflateReset(var strm: z_stream): Integer;
+function deflateParams(var strm: z_stream; level, strategy: Integer): Integer;
+function deflateBound(var strm: z_stream; sourceLen: LongInt): LongInt;
+function inflateInit2(var strm: z_stream; windowBits: Integer): Integer;
+function inflateSetDictionary(var strm: z_stream; const dictionary: PChar;
+                              dictLength: Integer): Integer;
+function inflateSync(var strm: z_stream): Integer;
+function inflateCopy(var dest, source: z_stream): Integer;
+function inflateReset(var strm: z_stream): Integer;
+function inflateBackInit(var strm: z_stream;
+                         windowBits: Integer; window: PChar): Integer;
+function inflateBack(var strm: z_stream; in_fn: in_func; in_desc: Pointer;
+                     out_fn: out_func; out_desc: Pointer): Integer;
+function inflateBackEnd(var strm: z_stream): Integer;
+function zlibCompileFlags: LongInt;
+
+(* utility functions *)
+function compress(dest: PChar; var destLen: LongInt;
+                  const source: PChar; sourceLen: LongInt): Integer;
+function compress2(dest: PChar; var destLen: LongInt;
+                  const source: PChar; sourceLen: LongInt;
+                  level: Integer): Integer;
+function compressBound(sourceLen: LongInt): LongInt;
+function uncompress(dest: PChar; var destLen: LongInt;
+                    const source: PChar; sourceLen: LongInt): Integer;
+
+(* checksum functions *)
+function adler32(adler: LongInt; const buf: PChar; len: Integer): LongInt;
+function crc32(crc: LongInt; const buf: PChar; len: Integer): LongInt;
+
+(* various hacks, don't look :) *)
+function deflateInit_(var strm: z_stream; level: Integer;
+                      const version: PChar; stream_size: Integer): Integer;
+function inflateInit_(var strm: z_stream; const version: PChar;
+                      stream_size: Integer): Integer;
+function deflateInit2_(var strm: z_stream;
+                       level, method, windowBits, memLevel, strategy: Integer;
+                       const version: PChar; stream_size: Integer): Integer;
+function inflateInit2_(var strm: z_stream; windowBits: Integer;
+                       const version: PChar; stream_size: Integer): Integer;
+function inflateBackInit_(var strm: z_stream;
+                          windowBits: Integer; window: PChar;
+                          const version: PChar; stream_size: Integer): Integer;
+
+
+implementation
+
+{$L adler32.obj}
+{$L compress.obj}
+{$L crc32.obj}
+{$L deflate.obj}
+{$L infback.obj}
+{$L inffast.obj}
+{$L inflate.obj}
+{$L inftrees.obj}
+{$L trees.obj}
+{$L uncompr.obj}
+{$L zutil.obj}
+
+function adler32; external;
+function compress; external;
+function compress2; external;
+function compressBound; external;
+function crc32; external;
+function deflate; external;
+function deflateBound; external;
+function deflateCopy; external;
+function deflateEnd; external;
+function deflateInit_; external;
+function deflateInit2_; external;
+function deflateParams; external;
+function deflateReset; external;
+function deflateSetDictionary; external;
+function inflate; external;
+function inflateBack; external;
+function inflateBackEnd; external;
+function inflateBackInit_; external;
+function inflateCopy; external;
+function inflateEnd; external;
+function inflateInit_; external;
+function inflateInit2_; external;
+function inflateReset; external;
+function inflateSetDictionary; external;
+function inflateSync; external;
+function uncompress; external;
+function zlibCompileFlags; external;
+function zlibVersion; external;
+
+function deflateInit(var strm: z_stream; level: Integer): Integer;
+begin
+  Result := deflateInit_(strm, level, ZLIB_VERSION, sizeof(z_stream));
+end;
+
+function deflateInit2(var strm: z_stream; level, method, windowBits, memLevel,
+                      strategy: Integer): Integer;
+begin
+  Result := deflateInit2_(strm, level, method, windowBits, memLevel, strategy,
+                          ZLIB_VERSION, sizeof(z_stream));
+end;
+
+function inflateInit(var strm: z_stream): Integer;
+begin
+  Result := inflateInit_(strm, ZLIB_VERSION, sizeof(z_stream));
+end;
+
+function inflateInit2(var strm: z_stream; windowBits: Integer): Integer;
+begin
+  Result := inflateInit2_(strm, windowBits, ZLIB_VERSION, sizeof(z_stream));
+end;
+
+function inflateBackInit(var strm: z_stream;
+                         windowBits: Integer; window: PChar): Integer;
+begin
+  Result := inflateBackInit_(strm, windowBits, window,
+                             ZLIB_VERSION, sizeof(z_stream));
+end;
+
+function _malloc(Size: Integer): Pointer; cdecl;
+begin
+  GetMem(Result, Size);
+end;
+
+procedure _free(Block: Pointer); cdecl;
+begin
+  FreeMem(Block);
+end;
+
+procedure _memset(P: Pointer; B: Byte; count: Integer); cdecl;
+begin
+  FillChar(P^, count, B);
+end;
+
+procedure _memcpy(dest, source: Pointer; count: Integer); cdecl;
+begin
+  Move(source^, dest^, count);
+end;
+
+end.

contrib/puff/puff.c

@@ -58,7 +58,7 @@
  *                      - Add FIXLCODES #define
  * 1.5   6 Apr 2002     - Minor comment fixes
  * 1.6   7 Aug 2002     - Minor format changes
- * 1.7   3 Mar 2002     - Added test code for distribution
+ * 1.7   3 Mar 2003     - Added test code for distribution
  *                      - Added zlib-like license
  */
 

contrib/testzlib/testzlib.vcproj

@@ -19,7 +19,7 @@
 			<Tool
 				Name="VCCLCompilerTool"
 				Optimization="0"
-				PreprocessorDefinitions="WIN32;ZLIB_DLL;_DEBUG;_CONSOLE"
+				PreprocessorDefinitions="WIN32;ZLIB_WINAPI;_DEBUG;_CONSOLE"
 				MinimalRebuild="TRUE"
 				BasicRuntimeChecks="3"
 				RuntimeLibrary="5"
@@ -63,7 +63,7 @@
 				Optimization="2"
 				InlineFunctionExpansion="1"
 				OmitFramePointers="TRUE"
-				PreprocessorDefinitions="WIN32;ZLIB_DLL;NDEBUG;_CONSOLE"
+				PreprocessorDefinitions="WIN32;ZLIB_WINAPI;NDEBUG;_CONSOLE"
 				StringPooling="TRUE"
 				RuntimeLibrary="4"
 				EnableFunctionLevelLinking="TRUE"
@@ -116,7 +116,7 @@
 			Filter="rc;ico;cur;bmp;dlg;rc2;rct;bin;rgs;gif;jpg;jpeg;jpe">
 		</Filter>
 		<File
-			RelativePath="zlib.lib">
+			RelativePath="zlibwapi.lib">
 		</File>
 	</Files>
 	<Globals>

contrib/untgz/Makefile

@@ -8,7 +8,7 @@ untgz.o: untgz.c ../../zlib.h
 	$(CC) $(CFLAGS) -c -I../.. untgz.c
 
 ../../libz.a:
-	cd ../..; make
+	cd ../..; ./configure; make
 
 clean:
 	rm -f untgz untgz.o *~

contrib/untgz/Makefile.msc

@@ -0,0 +1,17 @@
+CC=cl
+CFLAGS=-MD
+
+untgz.exe: untgz.obj ..\..\zlib.lib
+	$(CC) $(CFLAGS) untgz.obj ..\..\zlib.lib
+
+untgz.obj: untgz.c ..\..\zlib.h
+	$(CC) $(CFLAGS) -c -I..\.. untgz.c
+
+..\..\zlib.lib:
+	cd ..\..
+	$(MAKE) -f win32\makefile.msc
+	cd contrib\untgz
+
+clean:
+	-del untgz.obj
+	-del untgz.exe

contrib/untgz/makefile.w32

@@ -1,63 +0,0 @@
-# Makefile for zlib.  Modified for mingw32
-# For conditions of distribution and use, see copyright notice in zlib.h 
-
-# To compile, 
-# 
-#   make -fmakefile.w32
-# 
-
-CC=gcc
-
-# Generate dependencies (see end of the file)
-
-CPPFLAGS=-MMD 
-
-#CFLAGS=-MMD -O
-#CFLAGS=-O -DMAX_WBITS=14 -DMAX_MEM_LEVEL=7
-#CFLAGS=-MMD -g -DDEBUG
-CFLAGS=-O3 $(BUTT) -Wall -Wwrite-strings -Wpointer-arith -Wconversion \
-             -Wstrict-prototypes -Wmissing-prototypes
-
-# If cp.exe is not found, replace with copy /Y .
-CP=cp -f
-
-# The default value of RM is "rm -f."  
-# If "rm.exe" is not found, uncomment:
-# RM=del
-
-LD=gcc
-LDLIBS=-L. -lz
-LDFLAGS=-s
-
-
-INCL=zlib.h zconf.h
-LIBS=libz.a
-
-AR=ar rcs
-
-OBJS = adler32.o compress.o crc32.o gzio.o uncompr.o deflate.o trees.o \
-       zutil.o inflate.o infblock.o inftrees.o infcodes.o infutil.o \
-       inffast.o
-
-TEST_OBJS = minigzip.o untgz.o
-
-all: minigzip.exe untgz.exe
-
-rebuild:	clean	all
-
-libz.a: $(OBJS)
-	$(AR) $@ $(OBJS)
-
-%.exe : %.o $(LIBS)
-	$(LD) $(LDFLAGS) -o $@ $< $(LDLIBS)
-
-.PHONY : clean
-
-clean:
-	$(RM) *.d *.o *.exe libz.a foo.gz
-
-DEPS := $(wildcard *.d)
-ifneq ($(DEPS),)
-include $(DEPS)
-endif
-

contrib/untgz/untgz.c

@@ -1,8 +1,9 @@
 /*
- * untgz.c -- Display contents and/or extract file from
+ * untgz.c -- Display contents and extract files from a gzip'd TAR file
- * a gzip'd TAR file
+ *
  * written by "Pedro A. Aranda Guti\irrez" <paag@tid.es>
  * adaptation to Unix by Jean-loup Gailly <jloup@gzip.org>
+ * various fixes by Cosmin Truta <cosmint@cs.ubbcluj.ro>
  */
 
 #include <stdio.h>
@@ -10,7 +11,9 @@
 #include <string.h>
 #include <time.h>
 #include <errno.h>
-#include <fcntl.h>
+
+#include "zlib.h"
+
 #ifdef unix
 # include <unistd.h>
 #else
@@ -18,26 +21,22 @@
 # include <io.h>
 #endif
 
-#include "zlib.h"
-
 #ifdef WIN32
+#include <windows.h>
 #  ifndef F_OK
-#    define F_OK (0)
+#    define F_OK  0
 #  endif
+#  define mkdir(dirname,mode)   _mkdir(dirname)
 #  ifdef _MSC_VER
-#    define mkdir(dirname,mode) _mkdir(dirname)
 #    define strdup(str)         _strdup(str)
-#    define unlink(fn)          _unlink(fn)
 #    define access(path,mode)   _access(path,mode)
-#  else
-#    define mkdir(dirname,mode) _mkdir(dirname)
 #  endif
 #else
 #  include <utime.h>
 #endif
 
 
-/* Values used in typeflag field.  */
+/* values used in typeflag field */
 
 #define REGTYPE  '0'            /* regular file */
 #define AREGTYPE '\0'           /* regular file */
@@ -77,17 +76,18 @@ union tar_buffer {
   struct tar_header  header;
 };
 
-enum { TGZ_EXTRACT = 0, TGZ_LIST };
+enum { TGZ_EXTRACT, TGZ_LIST, TGZ_INVALID };
 
-static char *TGZfname	OF((const char *));
+char *TGZfname          OF((const char *));
 void TGZnotfound        OF((const char *));
 
 int getoct              OF((char *, int));
 char *strtime           OF((time_t *));
-int ExprMatch		OF((char *,char *));
+int setfiletime         OF((char *, time_t));
+int ExprMatch           OF((char *, char *));
 
 int makedir             OF((char *));
-int matchname		OF((int,int,char **,char *));
+int matchname           OF((int, int, char **, char *));
 
 void error              OF((const char *));
 int tar                 OF((gzFile, int, int, int, char **));
@@ -97,82 +97,135 @@ int main		OF((int, char **));
 
 char *prog;
 
-/* This will give a benign warning */
+const char *TGZsuffix[] = { "\0", ".tar", ".tar.gz", ".taz", ".tgz", NULL };
 
-static char *TGZprefix[] = { "\0", ".tgz", ".tar.gz", ".tar", NULL };
+/* return the file name of the TGZ archive */
+/* or NULL if it does not exist */
 
-/* Return the real name of the TGZ archive */
+char *TGZfname (const char *arcname)
-/* or NULL if it does not exist. */
-
-static char *TGZfname OF((const char *fname))
 {
   static char buffer[1024];
   int origlen,i;
 
-  strcpy(buffer,fname);
+  strcpy(buffer,arcname);
   origlen = strlen(buffer);
 
-  for (i=0; TGZprefix[i]; i++)
+  for (i=0; TGZsuffix[i]; i++)
     {
-       strcpy(buffer+origlen,TGZprefix[i]);
+       strcpy(buffer+origlen,TGZsuffix[i]);
        if (access(buffer,F_OK) == 0)
          return buffer;
     }
   return NULL;
 }
 
+
 /* error message for the filename */
 
-void TGZnotfound OF((const char *fname))
+void TGZnotfound (const char *arcname)
 {
   int i;
 
-  fprintf(stderr,"%s : couldn't find ",prog);
+  fprintf(stderr,"%s: Couldn't find ",prog);
-  for (i=0;TGZprefix[i];i++)
+  for (i=0;TGZsuffix[i];i++)
-    fprintf(stderr,(TGZprefix[i+1]) ? "%s%s, " : "or %s%s\n",
+    fprintf(stderr,(TGZsuffix[i+1]) ? "%s%s, " : "or %s%s\n",
-            fname,
+            arcname,
-            TGZprefix[i]);
+            TGZsuffix[i]);
   exit(1);
 }
 
 
-/* help functions */
+/* convert octal digits to int */
+/* on error return -1 */
 
-int getoct(char *p,int width)
+int getoct (char *p,int width)
 {
   int result = 0;
   char c;
 
-  while (width --)
+  while (width--)
     {
       c = *p++;
-      if (c == ' ')
-	continue;
       if (c == 0)
         break;
+      if (c == ' ')
+        continue;
+      if (c < '0' || c > '7')
+        return -1;
       result = result * 8 + (c - '0');
     }
   return result;
 }
 
+
+/* convert time_t to string */
+/* use the "YYYY/MM/DD hh:mm:ss" format */
+
 char *strtime (time_t *t)
 {
   struct tm   *local;
   static char result[32];
 
   local = localtime(t);
-  sprintf(result,"%2d/%02d/%4d %02d:%02d:%02d",
+  sprintf(result,"%4d/%02d/%02d %02d:%02d:%02d",
-	  local->tm_mday, local->tm_mon+1, local->tm_year+1900,
+          local->tm_year+1900, local->tm_mon+1, local->tm_mday,
           local->tm_hour, local->tm_min, local->tm_sec);
   return result;
 }
 
 
+/* set file time */
+
+int setfiletime (char *fname,time_t ftime)
+{
+#ifdef WIN32
+  static int isWinNT = -1;
+  SYSTEMTIME st;
+  FILETIME locft, modft;
+  struct tm *loctm;
+  HANDLE hFile;
+  int result;
+
+  loctm = localtime(&ftime);
+  if (loctm == NULL)
+    return -1;
+
+  st.wYear         = (WORD)loctm->tm_year + 1900;
+  st.wMonth        = (WORD)loctm->tm_mon + 1;
+  st.wDayOfWeek    = (WORD)loctm->tm_wday;
+  st.wDay          = (WORD)loctm->tm_mday;
+  st.wHour         = (WORD)loctm->tm_hour;
+  st.wMinute       = (WORD)loctm->tm_min;
+  st.wSecond       = (WORD)loctm->tm_sec;
+  st.wMilliseconds = 0;
+  if (!SystemTimeToFileTime(&st, &locft) ||
+      !LocalFileTimeToFileTime(&locft, &modft))
+    return -1;
+
+  if (isWinNT < 0)
+    isWinNT = (GetVersion() < 0x80000000) ? 1 : 0;
+  hFile = CreateFile(fname, GENERIC_WRITE, 0, NULL, OPEN_EXISTING,
+                     (isWinNT ? FILE_FLAG_BACKUP_SEMANTICS : 0),
+                     NULL);
+  if (hFile == INVALID_HANDLE_VALUE)
+    return -1;
+  result = SetFileTime(hFile, NULL, NULL, &modft) ? 0 : -1;
+  CloseHandle(hFile);
+  return result;
+#else
+  struct utimbuf settime;
+
+  settime.actime = settime.modtime = ftime;
+  return utime(fname,&settime);
+#endif
+}
+
+
 /* regular expression matching */
 
 #define ISSPECIAL(c) (((c) == '*') || ((c) == '/'))
 
-int ExprMatch(char *string,char *expr)
+int ExprMatch (char *string,char *expr)
 {
   while (1)
     {
@@ -204,10 +257,9 @@ int ExprMatch(char *string,char *expr)
     }
 }
 
-/* recursive make directory */
+
-/* abort if you get an ENOENT errno somewhere in the middle */
+/* recursive mkdir */
-/* e.g. ignore error "mkdir on existing directory" */
+/* abort on ENOENT; ignore other errors like "directory already exists" */
-/* */
 /* return 1 if OK */
 /*        0 on error */
 
@@ -224,7 +276,7 @@ int makedir (char *newdir)
   if (buffer[len-1] == '/') {
     buffer[len-1] = '\0';
   }
-  if (mkdir(buffer, 0775) == 0)
+  if (mkdir(buffer, 0755) == 0)
     {
       free(buffer);
       return 1;
@@ -239,9 +291,9 @@ int makedir (char *newdir)
         p++;
       hold = *p;
       *p = 0;
-      if ((mkdir(buffer, 0775) == -1) && (errno == ENOENT))
+      if ((mkdir(buffer, 0755) == -1) && (errno == ENOENT))
         {
-	  fprintf(stderr,"%s: couldn't create directory %s\n",prog,buffer);
+          fprintf(stderr,"%s: Couldn't create directory %s\n",prog,buffer);
           free(buffer);
           return 0;
         }
@@ -253,6 +305,7 @@ int makedir (char *newdir)
   return 1;
 }
 
+
 int matchname (int arg,int argc,char **argv,char *fname)
 {
   if (arg == argc)      /* no arguments given (untgz tgzarchive) */
@@ -266,7 +319,7 @@ int matchname (int arg,int argc,char **argv,char *fname)
 }
 
 
-/* Tar file list or extract */
+/* tar file list or extract */
 
 int tar (gzFile in,int action,int arg,int argc,char **argv)
 {
@@ -277,22 +330,26 @@ int tar (gzFile in,int action,int arg,int argc,char **argv)
   int    remaining = 0;
   FILE   *outfile = NULL;
   char   fname[BLOCKSIZE];
+  int    tarmode;
   time_t tartime;
 
   if (action == TGZ_LIST)
-    printf("     day      time     size                       file\n"
+    printf("    date      time     size                       file\n"
            " ---------- -------- --------- -------------------------------------\n");
   while (1)
     {
       len = gzread(in, &buffer, BLOCKSIZE);
       if (len < 0)
-	error (gzerror(in, &err));
+        error(gzerror(in, &err));
       /*
        * Always expect complete blocks to process
        * the tar information.
        */
       if (len != BLOCKSIZE)
-	error("gzread: incomplete block read");
+        {
+          action = TGZ_INVALID; /* force error exit */
+          remaining = 0;        /* force I/O cleanup */
+        }
 
       /*
        * If we have to get a tar header
@@ -304,9 +361,16 @@ int tar (gzFile in,int action,int arg,int argc,char **argv)
            * or the end-of-tar block,
            * we are done
            */
-	  if ((len == 0)  || (buffer.header.name[0]== 0)) break;
+          if ((len == 0) || (buffer.header.name[0] == 0)) break;
 
+          tarmode = getoct(buffer.header.mode,8);
           tartime = (time_t)getoct(buffer.header.mtime,12);
+          if (tarmode == -1 || tartime == (time_t)-1)
+            {
+              buffer.header.name[0] = 0;
+              action = TGZ_INVALID;
+            }
+
           strcpy(fname,buffer.header.name);
 
           switch (buffer.header.typeflag)
@@ -315,16 +379,24 @@ int tar (gzFile in,int action,int arg,int argc,char **argv)
               if (action == TGZ_LIST)
                 printf(" %s     <dir> %s\n",strtime(&tartime),fname);
               if (action == TGZ_EXTRACT)
+                {
                   makedir(fname);
+                  setfiletime(fname,tartime);
+                }
               break;
             case REGTYPE:
             case AREGTYPE:
               remaining = getoct(buffer.header.size,12);
+              if (remaining == -1)
+                {
+                  action = TGZ_INVALID;
+                  break;
+                }
               if (action == TGZ_LIST)
                 printf(" %s %9d %s\n",strtime(&tartime),remaining,fname);
-	      if (action == TGZ_EXTRACT)
+              else if (action == TGZ_EXTRACT)
                 {
-		  if ((remaining) && (matchname(arg,argc,argv,fname)))
+                  if (matchname(arg,argc,argv,fname))
                     {
                       outfile = fopen(fname,"wb");
                       if (outfile == NULL) {
@@ -337,18 +409,15 @@ int tar (gzFile in,int action,int arg,int argc,char **argv)
                           outfile = fopen(fname,"wb");
                         }
                       }
-		      fprintf(stderr,
+                      if (outfile != NULL)
-			      "%s %s\n",
+                        printf("Extracting %s\n",fname);
-			      (outfile) ? "Extracting" : "Couldn't create",
+                      else
-			      fname);
+                        fprintf(stderr, "%s: Couldn't create %s",prog,fname);
                     }
                   else
                     outfile = NULL;
                 }
-	      /*
+              getheader = 0;
-	       * could have no contents
-	       */
-	      getheader = (remaining) ? 0 : 1;
               break;
             default:
               if (action == TGZ_LIST)
@@ -360,59 +429,38 @@ int tar (gzFile in,int action,int arg,int argc,char **argv)
         {
           unsigned int bytes = (remaining > BLOCKSIZE) ? BLOCKSIZE : remaining;
 
-	  if ((action == TGZ_EXTRACT) && (outfile != NULL))
+          if (outfile != NULL)
             {
               if (fwrite(&buffer,sizeof(char),bytes,outfile) != bytes)
                 {
-		  fprintf(stderr,"%s : error writing %s skipping...\n",prog,fname);
+                  fprintf(stderr,"%s: Error writing %s -- skipping\n",prog,fname);
                   fclose(outfile);
-		  unlink(fname);
+                  outfile = NULL;
+                  remove(fname);
                 }
             }
           remaining -= bytes;
+        }
+
       if (remaining == 0)
         {
           getheader = 1;
-	      if ((action == TGZ_EXTRACT) && (outfile != NULL))
+          if (outfile != NULL)
             {
-#ifdef WIN32
-		  HANDLE hFile;
-		  FILETIME ftm,ftLocal;
-		  SYSTEMTIME st;
-		  struct tm localt;
- 
-		  fclose(outfile);
-
-		  localt = *localtime(&tartime);
-
-		  hFile = CreateFile(fname, GENERIC_READ | GENERIC_WRITE,
-				     0, NULL, OPEN_EXISTING, 0, NULL);
-		  
-		  st.wYear = (WORD)localt.tm_year+1900;
-		  st.wMonth = (WORD)localt.tm_mon;
-		  st.wDayOfWeek = (WORD)localt.tm_wday;
-		  st.wDay = (WORD)localt.tm_mday;
-		  st.wHour = (WORD)localt.tm_hour;
-		  st.wMinute = (WORD)localt.tm_min;
-		  st.wSecond = (WORD)localt.tm_sec;
-		  st.wMilliseconds = 0;
-		  SystemTimeToFileTime(&st,&ftLocal);
-		  LocalFileTimeToFileTime(&ftLocal,&ftm);
-		  SetFileTime(hFile,&ftm,NULL,&ftm);
-		  CloseHandle(hFile);
-
-		  outfile = NULL;
-#else
-		  struct utimbuf settime;
-
-		  settime.actime = settime.modtime = tartime;
-
               fclose(outfile);
               outfile = NULL;
-		  utime(fname,&settime);
+              if (action != TGZ_INVALID)
-#endif
+                setfiletime(fname,tartime);
             }
         }
+
+      /*
+       * Abandon if errors are found
+       */
+      if (action == TGZ_INVALID)
+        {
+          error("broken archive");
+          break;
         }
     }
 
@@ -423,17 +471,17 @@ int tar (gzFile in,int action,int arg,int argc,char **argv)
 }
 
 
-/* =========================================================== */
+/* ============================================================ */
 
 void help(int exitval)
 {
-  fprintf(stderr,
+  printf("untgz version 0.2\n"
-	  "untgz v 0.1\n"
+         "  using zlib version %s\n\n",
-	  " an sample application of zlib 1.0.4\n\n"
+         zlibVersion());
-          "Usage : untgz TGZfile            to extract all files\n"
+  printf("Usage: untgz file.tgz            extract all files\n"
-          "        untgz TGZfile fname ...  to extract selected files\n"
+         "       untgz file.tgz fname ...  extract selected files\n"
-          "        untgz -l TGZfile         to list archive contents\n"
+         "       untgz -l file.tgz         list archive contents\n"
-          "        untgz -h                 to display this help\n\n");
+         "       untgz -h                  display this help\n");
   exit(exitval);
 }
 
@@ -444,9 +492,11 @@ void error(const char *msg)
 }
 
 
-/* ====================================================================== */
+/* ============================================================ */
 
-int _CRT_glob = 0;	/* disable globbing of the arguments */
+#if defined(WIN32) && defined(__GNUC__)
+int _CRT_glob = 0;      /* disable argument globbing in MinGW */
+#endif
 
 int main(int argc,char **argv)
 {
@@ -455,7 +505,6 @@ int main(int argc,char **argv)
     char        *TGZfile;
     gzFile      *f;
 
-
     prog = strrchr(argv[0],'\\');
     if (prog == NULL)
       {
@@ -505,16 +554,14 @@ int main(int argc,char **argv)
         f = gzopen(TGZfile,"rb");
         if (f == NULL)
           {
-	    fprintf(stderr,"%s: Couldn't gzopen %s\n",
+            fprintf(stderr,"%s: Couldn't gzopen %s\n",prog,TGZfile);
-		    prog,
-		    TGZfile);
             return 1;
           }
         exit(tar(f, action, arg, argc, argv));
       break;
 
       default:
-	error("Unknown option!");
+        error("Unknown option");
         exit(1);
       }
 

contrib/vstudio/readme.txt

@@ -1,22 +1,55 @@
-For create the 16 and 32 bits DLL of Zlib 1.20
+Building instructions for the DLL versions of Zlib 1.21
+=======================================================
 
-For the 16 bits :
+This directory contains projects that build zlib and minizip using
-unzip zlib120.zip and copy file from contrib\vstudio\vc15_16 and from contrib\minizip in the same directory
+Microsoft Visual C++ 7.0/7.1.
-open zlib16.mak with Microsoft Visual C++ 1.52
+
+You don't need to build these projects yourself. You can download the
+binaries from:
+  http://www.winimage.com/zLibDll
+
+More information can be found at this site.
 
 
-For the 32 bits :
+Build instructions
-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
+- Unzip zlib*.zip and copy the files from contrib\vstudio\vc7,
-
+  from contrib\vstudio\masmx86 and from contrib\minizip into the same
-If you are using x86, use target Release
+  directory.
-open zlibvc.sln with Microsoft Visual C++ 7.0 (Visual Studio .net)
+- Download the crtdll library from
+    http://www.winimage.com/zLibDll/crtdll.zip
+  Unzip crtdll.zip to extract crtdll.lib.
+- If you are using x86, use the Release target.
+- Open zlibvc.sln with Microsoft Visual C++ 7.0 or 7.1
+  (Visual Studio .Net 2002 or 2003).
 
 
-Note : You don't need recompile yourself. There is compiled .LIB in
+Important
-  http://www.winimage.com/zLibDll . See this page for more information
+---------
+- To use zlibwapi.dll in your application, you must define the
+  macro ZLIB_WINAPI when compiling your application's source files.
 
 
+Additional notes
+----------------
+- This DLL, named zlibwapi.dll, is compatible to the old zlib.dll built
+  by Gilles Vollant from the zlib 1.1.x sources, and distributed at
+    http://www.winimage.com/zLibDll
+  It uses the WINAPI calling convention for the exported functions, and
+  includes the minizip functionality. If your application needs that
+  particular build of zlib.dll, you can rename zlibwapi.dll to zlib.dll.
+
+- The new DLL was renamed because there exist several incompatible
+  versions of zlib.dll on the Internet.
+
+- There is also an official DLL build of zlib, named zlib1.dll. This one
+  is exporting the functions using the CDECL convention. See the file
+  win32\DLL_FAQ.txt found in this zlib distribution.
+
+- There used to be a ZLIB_DLL macro in zlib 1.1.x, but now this symbol
+  has a slightly different effect. To avoid compatibility problems, do
+  not define it here.
+
 
 Gilles Vollant
 info@winimage.com

contrib/vstudio/vc15_16/zlib16.def

@@ -1,94 +0,0 @@
-LIBRARY		"zlib"
-
-DESCRIPTION	'"""zlib data compression library"""'
-
-EXETYPE		WINDOWS
-
-VERSION		1.21
-
-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

contrib/vstudio/vc15_16/zlib16.mak

@@ -1,259 +0,0 @@
-# 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" /D "ZLIB_INTERNAL" /FR /GD /Fd"ZLIB.PDB"
-CFLAGS_R_WDLL = /nologo /W3 /ALw /O1 /D "NDEBUG" /D "WINDOWS" /D "ZLIB_DLL" /D "ZLIB_INTERNAL" /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\zutil.h \
-	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 \
-	c:\zlib\crypt.h
-
-
-UNZIP_DEP = c:\zlib\zlib.h \
-	c:\zlib\zconf.h \
-	c:\zlib\unzip.h \
-	c:\zlib\ioapi.h \
-	c:\zlib\crypt.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)
-<<

contrib/vstudio/vc15_16/zlib16.rc

@@ -1,33 +0,0 @@
-#include <windows.h>
-#include <ver.h>
-
-#define IDR_VERSION1  1
-IDR_VERSION1	VERSIONINFO	MOVEABLE IMPURE LOADONCALL DISCARDABLE
-  FILEVERSION	 1,2,1,0
-  PRODUCTVERSION 1,2,1,0
-  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",	"1.2.1\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

contrib/vstudio/vc7/miniunz.vcproj

@@ -19,7 +19,7 @@
 			<Tool
 				Name="VCCLCompilerTool"
 				Optimization="0"
-				PreprocessorDefinitions="WIN32;ZLIB_DLL;_DEBUG;_CONSOLE"
+				PreprocessorDefinitions="WIN32;ZLIB_WINAPI;_DEBUG;_CONSOLE"
 				MinimalRebuild="TRUE"
 				BasicRuntimeChecks="3"
 				RuntimeLibrary="5"
@@ -63,7 +63,7 @@
 				Optimization="2"
 				InlineFunctionExpansion="1"
 				OmitFramePointers="TRUE"
-				PreprocessorDefinitions="WIN32;ZLIB_DLL;NDEBUG;_CONSOLE"
+				PreprocessorDefinitions="WIN32;ZLIB_WINAPI;NDEBUG;_CONSOLE"
 				StringPooling="TRUE"
 				RuntimeLibrary="4"
 				EnableFunctionLevelLinking="TRUE"
@@ -116,7 +116,7 @@
 			Filter="rc;ico;cur;bmp;dlg;rc2;rct;bin;rgs;gif;jpg;jpeg;jpe">
 		</Filter>
 		<File
-			RelativePath="zlib.lib">
+			RelativePath="zlibwapi.lib">
 		</File>
 	</Files>
 	<Globals>

contrib/vstudio/vc7/minizip.vcproj

@@ -19,7 +19,7 @@
 			<Tool
 				Name="VCCLCompilerTool"
 				Optimization="0"
-				PreprocessorDefinitions="WIN32;ZLIB_DLL;_DEBUG;_CONSOLE"
+				PreprocessorDefinitions="WIN32;ZLIB_WINAPI;_DEBUG;_CONSOLE"
 				MinimalRebuild="TRUE"
 				BasicRuntimeChecks="3"
 				RuntimeLibrary="5"
@@ -63,7 +63,7 @@
 				Optimization="2"
 				InlineFunctionExpansion="1"
 				OmitFramePointers="TRUE"
-				PreprocessorDefinitions="WIN32;ZLIB_DLL;NDEBUG;_CONSOLE"
+				PreprocessorDefinitions="WIN32;ZLIB_WINAPI;NDEBUG;_CONSOLE"
 				StringPooling="TRUE"
 				RuntimeLibrary="4"
 				EnableFunctionLevelLinking="TRUE"
@@ -116,7 +116,7 @@
 			Filter="rc;ico;cur;bmp;dlg;rc2;rct;bin;rgs;gif;jpg;jpeg;jpe">
 		</Filter>
 		<File
-			RelativePath="zlib.lib">
+			RelativePath="zlibwapi.lib">
 		</File>
 	</Files>
 	<Globals>

contrib/vstudio/vc7/zlibstat.vcproj

@@ -20,7 +20,7 @@
 			<Tool
 				Name="VCCLCompilerTool"
 				Optimization="0"
-				PreprocessorDefinitions="WIN32;ZLIB_DLL"
+				PreprocessorDefinitions="WIN32;ZLIB_WINAPI"
 				ExceptionHandling="FALSE"
 				RuntimeLibrary="5"
 				PrecompiledHeaderFile=".\zlibstatDebug/zlibstat.pch"
@@ -61,7 +61,7 @@
 			<Tool
 				Name="VCCLCompilerTool"
 				InlineFunctionExpansion="1"
-				PreprocessorDefinitions="WIN32;ZLIB_DLL"
+				PreprocessorDefinitions="WIN32;ZLIB_WINAPI"
 				StringPooling="TRUE"
 				ExceptionHandling="FALSE"
 				RuntimeLibrary="4"
@@ -102,7 +102,7 @@
 			<Tool
 				Name="VCCLCompilerTool"
 				InlineFunctionExpansion="1"
-				PreprocessorDefinitions="WIN32;ZLIB_DLL,ASMV"
+				PreprocessorDefinitions="WIN32;ZLIB_WINAPI;ASMV;ASMINF"
 				StringPooling="TRUE"
 				ExceptionHandling="FALSE"
 				RuntimeLibrary="4"
@@ -117,7 +117,7 @@
 				Name="VCCustomBuildTool"/>
 			<Tool
 				Name="VCLibrarianTool"
-				AdditionalOptions="gvmat32.obj  inffastAsm.obj /NODEFAULTLIB "
+				AdditionalOptions="gvmat32.obj inffas32.obj /NODEFAULTLIB "
 				OutputFile=".\zlibstat\zlibstat.lib"
 				SuppressStartupBanner="TRUE"/>
 			<Tool
@@ -144,7 +144,7 @@
 			<Tool
 				Name="VCCLCompilerTool"
 				InlineFunctionExpansion="1"
-				PreprocessorDefinitions="WIN32;ZLIB_DLL"
+				PreprocessorDefinitions="WIN32;ZLIB_WINAPI"
 				StringPooling="TRUE"
 				ExceptionHandling="FALSE"
 				RuntimeLibrary="4"
@@ -204,17 +204,6 @@
 			</File>
 			<File
 				RelativePath=".\inffast.c">
-				<FileConfiguration
-					Name="Release|Win32"
-					ExcludedFromBuild="TRUE">
-					<Tool
-						Name="VCCLCompilerTool"/>
-				</FileConfiguration>
-				<FileConfiguration
-					Name="ReleaseWithoutAsm|Win32">
-					<Tool
-						Name="VCCLCompilerTool"/>
-				</FileConfiguration>
 			</File>
 			<File
 				RelativePath=".\inflate.c">

contrib/vstudio/vc7/zlibvc.def

@@ -1,4 +1,3 @@
-LIBRARY		"zlib"
 
 VERSION		1.21
 
@@ -51,6 +50,10 @@ EXPORTS
         inflateBack                              @44
         inflateBackEnd                           @45
         compressBound                            @46
+        deflateBound                             @47
+        gzclearerr                               @48
+        gzungetc                                 @49
+        zlibCompileFlags                         @50
 
         unzOpen                                  @61
         unzClose                                 @62

contrib/vstudio/vc7/zlibvc.vcproj

@@ -20,7 +20,7 @@
 			<Tool
 				Name="VCCLCompilerTool"
 				Optimization="0"
-				PreprocessorDefinitions="WIN32,ZLIB_DLL,ASMV"
+				PreprocessorDefinitions="WIN32,ZLIB_WINAPI,ASMV,ASMINF"
 				ExceptionHandling="FALSE"
 				RuntimeLibrary="1"
 				PrecompiledHeaderFile=".\DebugDll/zlibvc.pch"
@@ -35,15 +35,15 @@
 			<Tool
 				Name="VCLinkerTool"
 				AdditionalOptions="/MACHINE:I386"
-				AdditionalDependencies="gvmat32.obj "
+				AdditionalDependencies="gvmat32.obj inffas32.obj"
-				OutputFile=".\DebugDll\zlib.dll"
+				OutputFile=".\DebugDll\zlibwapi.dll"
 				LinkIncremental="2"
 				SuppressStartupBanner="TRUE"
 				ModuleDefinitionFile=".\zlibvc.def"
 				GenerateDebugInformation="TRUE"
-				ProgramDatabaseFile=".\DebugDll/zlib.pdb"
+				ProgramDatabaseFile=".\DebugDll/zlibwapi.pdb"
 				SubSystem="2"
-				ImportLibrary=".\DebugDll/zlib.lib"/>
+				ImportLibrary=".\DebugDll/zlibwapi.lib"/>
 			<Tool
 				Name="VCMIDLTool"
 				PreprocessorDefinitions="_DEBUG"
@@ -76,7 +76,7 @@
 			<Tool
 				Name="VCCLCompilerTool"
 				InlineFunctionExpansion="1"
-				PreprocessorDefinitions="WIN32,ZLIB_DLL"
+				PreprocessorDefinitions="WIN32,ZLIB_WINAPI"
 				StringPooling="TRUE"
 				ExceptionHandling="FALSE"
 				RuntimeLibrary="0"
@@ -95,17 +95,17 @@
 				Name="VCLinkerTool"
 				AdditionalOptions="/MACHINE:I386"
 				AdditionalDependencies="crtdll.lib"
-				OutputFile=".\zlibDllWithoutAsm\zlib.dll"
+				OutputFile=".\zlibDllWithoutAsm\zlibwapi.dll"
 				LinkIncremental="1"
 				SuppressStartupBanner="TRUE"
 				IgnoreAllDefaultLibraries="TRUE"
 				ModuleDefinitionFile=".\zlibvc.def"
-				ProgramDatabaseFile=".\zlibDllWithoutAsm/zlib.pdb"
+				ProgramDatabaseFile=".\zlibDllWithoutAsm/zlibwapi.pdb"
 				GenerateMapFile="TRUE"
-				MapFileName=".\zlibDllWithoutAsm/zlib.map"
+				MapFileName=".\zlibDllWithoutAsm/zlibwapi.map"
 				SubSystem="2"
 				OptimizeForWindows98="1"
-				ImportLibrary=".\zlibDllWithoutAsm/zlib.lib"/>
+				ImportLibrary=".\zlibDllWithoutAsm/zlibwapi.lib"/>
 			<Tool
 				Name="VCMIDLTool"
 				PreprocessorDefinitions="NDEBUG"
@@ -138,7 +138,7 @@
 			<Tool
 				Name="VCCLCompilerTool"
 				InlineFunctionExpansion="1"
-				PreprocessorDefinitions="WIN32,ZLIB_DLL,ASMV"
+				PreprocessorDefinitions="WIN32,ZLIB_WINAPI,ASMV,ASMINF"
 				StringPooling="TRUE"
 				ExceptionHandling="FALSE"
 				RuntimeLibrary="0"
@@ -156,18 +156,18 @@
 			<Tool
 				Name="VCLinkerTool"
 				AdditionalOptions="/MACHINE:I386"
-				AdditionalDependencies="gvmat32.obj inffastAsm.obj "
+				AdditionalDependencies="gvmat32.obj inffas32.obj "
-				OutputFile=".\zlibDllWithoutCrtDll\zlib.dll"
+				OutputFile=".\zlibDllWithoutCrtDll\zlibwapi.dll"
 				LinkIncremental="1"
 				SuppressStartupBanner="TRUE"
 				IgnoreAllDefaultLibraries="FALSE"
 				ModuleDefinitionFile=".\zlibvc.def"
-				ProgramDatabaseFile=".\zlibDllWithoutCrtDll/zlib.pdb"
+				ProgramDatabaseFile=".\zlibDllWithoutCrtDll/zlibwapi.pdb"
 				GenerateMapFile="TRUE"
-				MapFileName=".\zlibDllWithoutCrtDll/zlib.map"
+				MapFileName=".\zlibDllWithoutCrtDll/zlibwapi.map"
 				SubSystem="2"
 				OptimizeForWindows98="1"
-				ImportLibrary=".\zlibDllWithoutCrtDll/zlib.lib"/>
+				ImportLibrary=".\zlibDllWithoutCrtDll/zlibwapi.lib"/>
 			<Tool
 				Name="VCMIDLTool"
 				PreprocessorDefinitions="NDEBUG"
@@ -200,7 +200,7 @@
 			<Tool
 				Name="VCCLCompilerTool"
 				InlineFunctionExpansion="1"
-				PreprocessorDefinitions="WIN32,ZLIB_DLL"
+				PreprocessorDefinitions="WIN32,ZLIB_WINAPI"
 				StringPooling="TRUE"
 				ExceptionHandling="FALSE"
 				RuntimeLibrary="0"
@@ -218,16 +218,16 @@
 			<Tool
 				Name="VCLinkerTool"
 				AdditionalDependencies="crtdll.lib"
-				OutputFile="zlibvc__\zlib.dll"
+				OutputFile="zlibvc__\zlibwapi.dll"
 				LinkIncremental="1"
 				SuppressStartupBanner="TRUE"
 				IgnoreAllDefaultLibraries="TRUE"
 				ModuleDefinitionFile=".\zlibvc.def"
-				ProgramDatabaseFile=".\zlibvc__/zlib.pdb"
+				ProgramDatabaseFile=".\zlibvc__/zlibwapi.pdb"
 				GenerateMapFile="TRUE"
-				MapFileName=".\zlibvc__/zlib.map"
+				MapFileName=".\zlibvc__/zlibwapi.map"
 				SubSystem="2"
-				ImportLibrary=".\zlibvc__/zlib.lib"/>
+				ImportLibrary=".\zlibvc__/zlibwapi.lib"/>
 			<Tool
 				Name="VCMIDLTool"
 				PreprocessorDefinitions="NDEBUG"
@@ -260,7 +260,7 @@
 			<Tool
 				Name="VCCLCompilerTool"
 				InlineFunctionExpansion="1"
-				PreprocessorDefinitions="WIN32,ZLIB_DLL,ASMV"
+				PreprocessorDefinitions="WIN32,ZLIB_WINAPI,ASMV,ASMINF"
 				StringPooling="TRUE"
 				ExceptionHandling="FALSE"
 				RuntimeLibrary="0"
@@ -278,18 +278,18 @@
 			<Tool
 				Name="VCLinkerTool"
 				AdditionalOptions="/MACHINE:I386"
-				AdditionalDependencies="gvmat32.obj inffastAsm.obj crtdll.lib"
+				AdditionalDependencies="gvmat32.obj inffas32.obj crtdll.lib"
-				OutputFile=".\ReleaseDll\zlib.dll"
+				OutputFile=".\ReleaseDll\zlibwapi.dll"
 				LinkIncremental="1"
 				SuppressStartupBanner="TRUE"
 				IgnoreAllDefaultLibraries="TRUE"
 				ModuleDefinitionFile=".\zlibvc.def"
-				ProgramDatabaseFile=".\ReleaseDll/zlib.pdb"
+				ProgramDatabaseFile=".\ReleaseDll/zlibwapi.pdb"
 				GenerateMapFile="TRUE"
-				MapFileName=".\ReleaseDll/zlib.map"
+				MapFileName=".\ReleaseDll/zlibwapi.map"
 				SubSystem="2"
 				OptimizeForWindows98="1"
-				ImportLibrary=".\ReleaseDll/zlib.lib"/>
+				ImportLibrary=".\ReleaseDll/zlibwapi.lib"/>
 			<Tool
 				Name="VCMIDLTool"
 				PreprocessorDefinitions="NDEBUG"
@@ -346,18 +346,6 @@
 			</File>
 			<File
 				RelativePath=".\inffast.c">
-				<FileConfiguration
-					Name="ReleaseWithoutCrtdll|Win32"
-					ExcludedFromBuild="TRUE">
-					<Tool
-						Name="VCCLCompilerTool"/>
-				</FileConfiguration>
-				<FileConfiguration
-					Name="Release|Win32"
-					ExcludedFromBuild="TRUE">
-					<Tool
-						Name="VCCLCompilerTool"/>
-				</FileConfiguration>
 			</File>
 			<File
 				RelativePath=".\inflate.c">

contrib/vstudio/vc70_32/mkgvmt32.bat

@@ -1,2 +0,0 @@
-c:\masm611\bin\ml /coff /Zi /c /Flgvmat32.lst gvmat32.asm
-c:\masm611\bin\ml /coff /Zi /c /FlinffastAsm.lst inffastAsm.asm

contrib/zlib_dll_FAQ.txt

@@ -1,257 +0,0 @@
-
-            Frequently Asked Questions about ZLIB.DLL
-
-
-This FAQ is about the design, the rationale, and the use of
-ZLIB.DLL. If you have general questions about zlib, you should
-check the file "FAQ" found in the zlib distribution, or at the
-location http://www.gzip.org/zlib/zlib_faq.html
-
-
- 1. Why am I having problems using ZLIB.DLL? My application works
-    with the static build of zlib just fine, and I didn't make any
-    modification when recompiling it for ZLIB.DLL.
-
-  - Make sure you define ZLIB_DLL before including "zlib.h".
-    Applications that link to ZLIB.DLL will work properly if
-    the source files are compiled in this (or in a compatible)
-    way, and the executables are linked to MSVCRT.DLL.
-
-
- 2. Why do I have to do this? When I use other libraries, I can
-    link my code to their static or dynamic versions, without
-    needing any source code modification or recompilation.
-
-  - In order to preserve the backwards compatibility with the
-    older versions of ZLIB.DLL, and give the ability to use zlib
-    to the non-C programmers at the same time, we had to do this
-    compromise.
-
-
- 3. What exactly is this mess about, and why is it happening?
-
-  - It's about the calling convention used for the zlib functions.
-    If linked in statically, zlib uses the C (CDECL) convention.
-    If linked in dynamically (via ZLIB.DLL), it uses the STDCALL
-    convention. The ZLIB_DLL macro switches on the use of STDCALL.
-
-    It happens because we need to preserve compatibility with the
-    old releases of ZLIB.DLL that use STDCALL, and, at the same
-    time, we must provide support for programmers who use other
-    programming languages with bindings that require CDECL.
-
-
- 4. Why not use the STDCALL convention all the time?
-    It's the standard convention in Win32, and I need it in my
-    Visual Basic project!
-
-  - Most of the Win32 API functions (without varargs) use indeed
-    the STDCALL (WINAPI) convention, but the standard C functions
-    use the default CDECL. If one calls Win32 functions such as
-    CreateFile(), sometimes it makes sense to decorate one's own
-    functions with STDCALL. But if one is aiming at ANSI C or
-    POSIX portability, and calls functions such as fopen(), it is
-    not a sound decision to include <windows.h> or to use non-ANSI
-    constructs only to make one's functions STDCALL-able. This is
-    not the biggest problem, however.
-
-    Technically, STDCALL is not bad; it is even a little faster
-    than CDECL. The problem of using STDCALL is actually a problem
-    of using any explicit calling convention. FASTCALL falls into
-    the same category.
-
-    Explicit specification of calling conventions, whether it's
-    direct or indirect via a macro, happens commonly in Windows,
-    but it is regarded as a noisy, non-standard C quirk on other
-    platforms. It isn't possible to write an ANSI C -conforming
-    program, for example, if it is necessary to specify calling
-    conventions. Libraries can hide the dirty stuff in header
-    files, under macros, but callbacks will still remain exposed.
-    This is why the zlib callbacks will not be decorated.
-    (The old Windows callbacks, such as WndProc, are decorated,
-    but the newer ones are not.)
-
-    There is one more problem with explicit, non-default calling
-    conventions: the ability to use zlib in other programming
-    languages. Some of them, like Ada (GNAT) and Fortran (GNU G77)
-    have C bindings implemented initially on Unix, hence relying
-    on the C calling convention.
-
-    So we are decorating the functions using STDCALL in ZLIB.DLL
-    to maintain compatibility with the old versions, but we are
-    using the default CDECL in the static library, to allow other
-    programming languages to use zlib in a portable fashion, via
-    C bindings.
-
-
- 5. Why not use the default (CDECL) convention all the time?
-    It's the standard convention in C, and I need it in my Ada
-    project!
-
-  - Originally, ZLIB.DLL was intended to run under Visual Basic,
-    and VB6 and earlier need STDCALL.
-
-    We admit that cluttering the main zlib sources, for the sake
-    of interfacing with Visual Basic and at the expense of other
-    programming languages, is not fair. It would have been better
-    to maintain a "VB-only" project in the contrib/ directory, and
-    to build a custom ZLIBVB.DLL, for example -- as we did with
-    the Delphi projects. Another possible solution would have been
-    to build STDCALL wrappers around the CDECL-exported functions.
-
-    But this was the accident that we have to live with, in order
-    to maintain binary compatibility with the older versions of
-    ZLIB.DLL.
-
-
- 6. If my application uses ZLIB.DLL, do I have to link it to
-    MSVCRT.DLL? Why?
-
-  - The executables (.EXE, .DLL, etc.) that are involved in the
-    same process and are using the C run-time library (i.e. they
-    are calling any standard C function), must link to the same
-    library. There are several libraries in the Win32 system:
-    CRTDLL.DLL, MSVCRT.DLL, the static C libraries, etc.
-    Since ZLIB.DLL is linked to MSVCRT.DLL, the executables that
-    depend on it must also link to MSVCRT.DLL.
-
-
- 7. Why are you saying that ZLIB.DLL and my application must be
-    linked to the same C run-time library (CRT)? I linked my
-    application and my DLLs to different C libraries (e.g. my
-    application to a static library, and my DLLs to MSVCRT.DLL),
-    and everything works fine.
-
-  - If a library invokes only pure Win32 API (i.e. accessible
-    via <windows.h>), its DLL build will work in any context.
-    But if a library invokes standard C functions, things get
-    more complicated.
-
-    There is a single Win32 library in a Win32 system. Every
-    function in this library resides in a single DLL module, that
-    is safe to call from anywhere. On the other hand, there are
-    multiple versions of the C library that are all at the same
-    time in the system, and all of them have internal states,
-    therefore it is dangerous to intermix them with each other.
-
-    Intermixing multiple C libraries is possible, as long as their
-    internal states are kept intact. The Microsoft Knowledge Base
-    article Q140584 "HOWTO: Link with the Correct C Run-Time (CRT)
-    Library" enumerates some of the potential problems raised by
-    intermixing, but does not offer a complete description of how
-    to avoid them, except by advising not to mix the C libraries.
-    If you can send us more information about this issue, we will
-    highly appreciate it. (But please do NOT send us source code
-    from Microsoft, even if it comes with your legitimate copy of
-    Visual C++!)
-
-    If this kind of intermixing works for you, it's because your
-    application and DLLs are avoiding the corruption of the CRT's
-    internal states, due to a fortunate accident. It's not because
-    those libraries really work together.
-
-    Also note that linking ZLIB.DLL to non-Microsoft C libraries
-    (such as Borland's) raises similar problems.
-
-
- 8. Why are you linking ZLIB.DLL to MSVCRT.DLL?
-
-  - MSVCRT.DLL exists on every Windows 95 with a new service pack
-    installed, or with Microsoft Internet Explorer 4 or later, and
-    on all other Windows 4.x or later (Windows 98, Windows NT 4,
-    or later). It is freely distributable; if not present in the
-    system, it can be downloaded from Microsoft or from other
-    software provider for free.
-
-    The fact that MSVCRT.DLL does not exist on a virgin Windows 95
-    is not so problematic. The number of Windows 95 installations
-    is rapidly decreasing, Microsoft stopped supporting it a long
-    time ago, and many recent applications from various vendors
-    including Microsoft, do not even run on it. Even without these
-    arguments, no serious user should run Windows 95 without a
-    proper update installed.
-
-    There is also the fact that the mainstream C compilers for
-    Windows are Microsoft Visual C++ 6.0, and gcc/MinGW. Both
-    are producing executables that link to MSVCRT.DLL by default,
-    without offering other dynamic CRTs as alternatives easy to
-    select by users.
-
-
- 9. Why are you not linking ZLIB.DLL to
-    <<my favorite C run-time library>> ?
-
-  - We considered and abandoned the following alternatives:
-
-    * Linking ZLIB.DLL to a static C library (LIBC.LIB, or
-      LIBCMT.LIB) is not a good option. People are using ZLIB.DLL
-      mainly to save disk space. If you are linking your program
-      to a static C library, you may as well consider linking zlib
-      in statically, too.
-
-    * Linking ZLIB.DLL to CRTDLL.DLL looks very appealing,
-      because CRTDLL.DLL is present on every Win32 installation.
-      Unfortunately, it has a series of problems: it raises
-      difficulties when linking to the Microsoft C++ libraries,
-      it is not thread-safe, and Microsoft has discontinued its
-      support a long time ago.
-
-    * Linking ZLIB.DLL to MSVCRT70.DLL, supplied with the
-      Microsoft .NET platform and Visual C++ 7.0, is not a good
-      option. Although it can be downloaded and distributed
-      freely, it is hardly present on today's Win32 installations.
-      If it will become more popular than MSVCRT.DLL, and will be
-      pre-installed on the future Win32 systems, we will probably
-      think again about it.
-
-    * Linking ZLIB.DLL to NTDLL.DLL is not possible.
-      NTDLL.DLL exports only a part of the C library, and only
-      on Windows NT systems.
-
-
-10. I understand your reasons. However, my project needs ZLIB.DLL
-    linked to something different than MSVCRT.DLL. What can I do?
-
-    Feel free to rebuild this DLL from the zlib sources, and link
-    it the way you want. It is required, however, to clearly
-    state that your build is unofficial. Another thing that is not
-    required, but highly recommended, is to name that custom DLL
-    differently, and/or to install it in a private directory that
-    can be accessed by your application, but is not visible to the
-    others (e.g. it's not the SYSTEM or the SYSTEM32 directory,
-    and it's not in the PATH). Otherwise, your build may clash
-    with applications that link to the official build.
-
-    For example, in Cygwin, zlib is linked to their runtime
-    CYGWIN1.DLL, and it is distributed under the name CYGZ.DLL.
-
-
-11. My I include additional pieces of code that I find useful,
-    link them in ZLIB.DLL, and export them?
-
-    No. A legitimate build of ZLIB.DLL must not include code that
-    does not originate from the official zlib sources. But you can
-    make your own private build, and give it a different name, as
-    suggested in the previous answer.
-
-    For example, in Borland Delphi and C++ Builder, zlib is part
-    of the standard VCL library. If an application links to VCL
-    dynamically, the name of the distributable binary (VCLxx.DLL)
-    does not posess any danger of clashing with a legitimate but
-    incompatible ZLIB.DLL.
-
-
-12. I see that I may have all kinds of problems if I use ZLIB.DLL.
-    Do you recommend to link zlib in statically? Do I get rid of
-    problems?
-
-  - Yes, definitely. In fact, unless you are distributing a large
-    number of executables, each of them linking to zlib, you will
-    save space by linking zlib in statically (assuming that you
-    would otherwise distribute ZLIB.DLL with your application).
-    zlib is not a big library, and the space saved by ZLIB.DLL is
-    little. Much of the actual size of the DLL is due to the 4KB
-    alignment in the binary.
-
-    But you may have reasons, other than size, to use the DLL.
-    That is entirely up to you.

crc32.c

@@ -5,8 +5,8 @@
  * Thanks to Rodney Brown <rbrown64@csc.com.au> for his contribution of faster
  * CRC methods: exclusive-oring 32 bits of data at a time, and pre-computing
  * tables for updating the shift register in one step with three exclusive-ors
- * instead of four steps with four exclusive-ors.  This results about a 50%
+ * instead of four steps with four exclusive-ors.  This results about a factor
- * increase in speed on a Power PC using gcc -O3.
+ * of two increase in speed on a Power PC G4 (PPC7455) using gcc -O3.
  */
 
 /* @(#) $Id$ */
@@ -18,7 +18,7 @@
 #  endif /* !DYNAMIC_CRC_TABLE */
 #endif /* MAKECRCH */
 
-#include "zutil.h"
+#include "zutil.h"      /* for STDC and FAR definitions */
 
 #define local static
 
@@ -203,7 +203,7 @@ unsigned long ZEXPORT crc32(crc, buf, len)
 #endif /* DYNAMIC_CRC_TABLE */
 
 #ifdef BYFOUR
-    {
+    if (sizeof(void *) == sizeof(ptrdiff_t)) {
         u4 endian;
 
         endian = 1;
@@ -212,7 +212,7 @@ unsigned long ZEXPORT crc32(crc, buf, len)
         else
             return crc32_big(crc, buf, len);
     }
-#else /* !BYFOUR */
+#endif /* BYFOUR */
     crc = crc ^ 0xffffffffUL;
     while (len >= 8) {
         DO8;
@@ -222,7 +222,6 @@ unsigned long ZEXPORT crc32(crc, buf, len)
         DO1;
     } while (--len);
     return crc ^ 0xffffffffUL;
-#endif /* BYFOUR */
 }
 
 #ifdef BYFOUR
@@ -244,7 +243,7 @@ local unsigned long crc32_little(crc, buf, len)
 
     c = (u4)crc;
     c = ~c;
-    while (len && ((size_t)buf & 3)) {
+    while (len && ((ptrdiff_t)buf & 3)) {
         c = crc_table[0][(c ^ *buf++) & 0xff] ^ (c >> 8);
         len--;
     }
@@ -284,7 +283,7 @@ local unsigned long crc32_big(crc, buf, len)
 
     c = REV((u4)crc);
     c = ~c;
-    while (len && ((size_t)buf & 3)) {
+    while (len && ((ptrdiff_t)buf & 3)) {
         c = crc_table[4][(c >> 24) ^ *buf++] ^ (c << 8);
         len--;
     }

deflate.c

@@ -52,7 +52,7 @@
 #include "deflate.h"
 
 const char deflate_copyright[] =
-   " deflate 1.2.0.3 Copyright 1995-2003 Jean-loup Gailly ";
+   " deflate 1.2.0.7 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
@@ -132,12 +132,12 @@ typedef struct config_s {
 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 */
+/* 1 */ {4,    4,  8,    4, deflate_fast}}; /* max speed, no lazy matches */
 #else
 local const config configuration_table[10] = {
 /*      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 */
+/* 1 */ {4,    4,  8,    4, deflate_fast}, /* max speed, no lazy matches */
 /* 2 */ {4,    5, 16,    8, deflate_fast},
 /* 3 */ {4,    6, 32,   32, deflate_fast},
 
@@ -146,7 +146,7 @@ local const config configuration_table[10] = {
 /* 6 */ {8,   16, 128, 128, deflate_slow},
 /* 7 */ {8,   32, 128, 256, deflate_slow},
 /* 8 */ {32, 128, 258, 1024, deflate_slow},
-/* 9 */ {32, 258, 258, 4096, deflate_slow}}; /* maximum compression */
+/* 9 */ {32, 258, 258, 4096, deflate_slow}}; /* max compression */
 #endif
 
 /* Note: the deflate() code requires max_lazy >= MIN_MATCH and max_chain >= 4
@@ -188,7 +188,7 @@ struct static_tree_desc_s {int dummy;}; /* for buggy compilers */
 #else
 #define INSERT_STRING(s, str, match_head) \
    (UPDATE_HASH(s, s->ins_h, s->window[(str) + (MIN_MATCH-1)]), \
-    s->prev[(str) & s->w_mask] = match_head = s->head[s->ins_h], \
+    match_head = s->prev[(str) & s->w_mask] = s->head[s->ins_h], \
     s->head[s->ins_h] = (Pos)(str))
 #endif
 
@@ -225,7 +225,7 @@ int ZEXPORT deflateInit2_(strm, level, method, windowBits, memLevel, strategy,
     int stream_size;
 {
     deflate_state *s;
-    int noheader = 0;
+    int wrap = 1;
     static const char my_version[] = ZLIB_VERSION;
 
     ushf *overlay;
@@ -240,11 +240,11 @@ int ZEXPORT deflateInit2_(strm, level, method, windowBits, memLevel, strategy,
     if (strm == Z_NULL) return Z_STREAM_ERROR;
 
     strm->msg = Z_NULL;
-    if (strm->zalloc == Z_NULL) {
+    if (strm->zalloc == (alloc_func)0) {
         strm->zalloc = zcalloc;
         strm->opaque = (voidpf)0;
     }
-    if (strm->zfree == Z_NULL) strm->zfree = zcfree;
+    if (strm->zfree == (free_func)0) strm->zfree = zcfree;
 
 #ifdef FASTEST
     if (level != 0) level = 1;
@@ -252,10 +252,16 @@ int ZEXPORT deflateInit2_(strm, level, method, windowBits, memLevel, strategy,
     if (level == Z_DEFAULT_COMPRESSION) level = 6;
 #endif
 
-    if (windowBits < 0) { /* undocumented feature: suppress zlib header */
+    if (windowBits < 0) { /* suppress zlib wrapper */
-        noheader = 1;
+        wrap = 0;
         windowBits = -windowBits;
     }
+#ifdef GZIP
+    else if (windowBits > 15) {
+        wrap = 2;       /* write gzip wrapper instead */
+        windowBits -= 16;
+    }
+#endif
     if (memLevel < 1 || memLevel > MAX_MEM_LEVEL || method != Z_DEFLATED ||
         windowBits < 8 || windowBits > 15 || level < 0 || level > 9 ||
         strategy < 0 || strategy > Z_RLE) {
@@ -267,7 +273,7 @@ int ZEXPORT deflateInit2_(strm, level, method, windowBits, memLevel, strategy,
     strm->state = (struct internal_state FAR *)s;
     s->strm = strm;
 
-    s->noheader = noheader;
+    s->wrap = wrap;
     s->w_bits = windowBits;
     s->w_size = 1 << s->w_bits;
     s->w_mask = s->w_size - 1;
@@ -316,11 +322,12 @@ int ZEXPORT deflateSetDictionary (strm, dictionary, dictLength)
     IPos hash_head = 0;
 
     if (strm == Z_NULL || strm->state == Z_NULL || dictionary == Z_NULL ||
-        (!strm->state->noheader && strm->state->status != INIT_STATE))
+        strm->state->wrap == 2 ||
+        (strm->state->wrap == 1 && strm->state->status != INIT_STATE))
         return Z_STREAM_ERROR;
 
     s = strm->state;
-    if (!s->noheader)
+    if (s->wrap)
         strm->adler = adler32(strm->adler, dictionary, dictLength);
 
     if (length < MIN_MATCH) return Z_OK;
@@ -354,7 +361,9 @@ int ZEXPORT deflateReset (strm)
     deflate_state *s;
 
     if (strm == Z_NULL || strm->state == Z_NULL ||
-        strm->zalloc == Z_NULL || strm->zfree == Z_NULL) return Z_STREAM_ERROR;
+        strm->zalloc == (alloc_func)0 || strm->zfree == (free_func)0) {
+        return Z_STREAM_ERROR;
+    }
 
     strm->total_in = strm->total_out = 0;
     strm->msg = Z_NULL; /* use zfree if we ever allocate msg dynamically */
@@ -364,11 +373,15 @@ int ZEXPORT deflateReset (strm)
     s->pending = 0;
     s->pending_out = s->pending_buf;
 
-    if (s->noheader < 0) {
+    if (s->wrap < 0) {
-        s->noheader = 0; /* was set to -1 by deflate(..., Z_FINISH); */
+        s->wrap = -s->wrap; /* was made negative by deflate(..., Z_FINISH); */
     }
-    s->status = s->noheader ? BUSY_STATE : INIT_STATE;
+    s->status = s->wrap ? INIT_STATE : BUSY_STATE;
-    strm->adler = 1;
+    strm->adler =
+#ifdef GZIP
+        s->wrap == 2 ? crc32(0L, Z_NULL, 0) :
+#endif
+        adler32(0L, Z_NULL, 0);
     s->last_flush = Z_NO_FLUSH;
 
     _tr_init(s);
@@ -428,7 +441,7 @@ int ZEXPORT deflateParams(strm, level, strategy)
  * can emit on compressed data for some combinations of the parameters.
  *
  * This function could be more sophisticated to provide closer upper bounds
- * for every combination of windowBits and memLevel, as well as noheader.
+ * for every combination of windowBits and memLevel, as well as wrap.
  * But even the conservative upper bound of about 14% expansion does not
  * seem onerous for output buffer allocation.
  */
@@ -519,9 +532,28 @@ int ZEXPORT deflate (strm, flush)
     old_flush = s->last_flush;
     s->last_flush = flush;
 
-    /* Write the zlib header */
+    /* Write the header */
     if (s->status == INIT_STATE) {
-
+#ifdef GZIP
+        if (s->wrap == 2) {
+            put_byte(s, 31);
+            put_byte(s, 139);
+            put_byte(s, 8);
+            put_byte(s, 0);
+            put_byte(s, 0);
+            put_byte(s, 0);
+            put_byte(s, 0);
+            put_byte(s, 0);
+            put_byte(s, s->level == 9 ? 2 :
+                        (s->strategy >= Z_HUFFMAN_ONLY || s->level < 2 ?
+                         4 : 0));
+            put_byte(s, 255);
+            s->status = BUSY_STATE;
+            strm->adler = crc32(0L, Z_NULL, 0);
+        }
+        else
+#endif
+        {
             uInt header = (Z_DEFLATED + ((s->w_bits-8)<<4)) << 8;
             uInt level_flags;
 
@@ -545,7 +577,8 @@ int ZEXPORT deflate (strm, flush)
                 putShortMSB(s, (uInt)(strm->adler >> 16));
                 putShortMSB(s, (uInt)(strm->adler & 0xffff));
             }
-        strm->adler = 1L;
+            strm->adler = adler32(0L, Z_NULL, 0);
+        }
     }
 
     /* Flush as much pending output as possible */
@@ -622,16 +655,31 @@ int ZEXPORT deflate (strm, flush)
     Assert(strm->avail_out > 0, "bug2");
 
     if (flush != Z_FINISH) return Z_OK;
-    if (s->noheader) return Z_STREAM_END;
+    if (s->wrap <= 0) return Z_STREAM_END;
 
-    /* Write the zlib trailer (adler32) */
+    /* Write the trailer */
+#ifdef GZIP
+    if (s->wrap == 2) {
+        put_byte(s, (Byte)(strm->adler & 0xff));
+        put_byte(s, (Byte)((strm->adler >> 8) & 0xff));
+        put_byte(s, (Byte)((strm->adler >> 16) & 0xff));
+        put_byte(s, (Byte)((strm->adler >> 24) & 0xff));
+        put_byte(s, (Byte)(strm->total_in & 0xff));
+        put_byte(s, (Byte)((strm->total_in >> 8) & 0xff));
+        put_byte(s, (Byte)((strm->total_in >> 16) & 0xff));
+        put_byte(s, (Byte)((strm->total_in >> 24) & 0xff));
+    }
+    else
+#endif
+    {
         putShortMSB(s, (uInt)(strm->adler >> 16));
         putShortMSB(s, (uInt)(strm->adler & 0xffff));
+    }
     flush_pending(strm);
     /* If avail_out is zero, the application will call deflate again
      * to flush the rest.
      */
-    s->noheader = -1; /* write the trailer only once! */
+    if (s->wrap > 0) s->wrap = -s->wrap; /* write the trailer only once! */
     return s->pending != 0 ? Z_OK : Z_STREAM_END;
 }
 
@@ -740,9 +788,14 @@ local int read_buf(strm, buf, size)
 
     strm->avail_in  -= len;
 
-    if (!strm->state->noheader) {
+    if (strm->state->wrap == 1) {
         strm->adler = adler32(strm->adler, strm->next_in, len);
     }
+#ifdef GZIP
+    else if (strm->state->wrap == 2) {
+        strm->adler = crc32(strm->adler, strm->next_in, len);
+    }
+#endif
     zmemcpy(buf, strm->next_in, len);
     strm->next_in  += len;
     strm->total_in += len;
@@ -1044,7 +1097,7 @@ local void fill_window(s)
 
             } else if (more == (unsigned)(-1)) {
                 /* Very unlikely, but possible on 16 bit machine if
-                 * strstart == 0 && lookahead == 1 (input done one byte at time)
+                 * strstart == 0 && lookahead == 1 (input done a byte at time)
                  */
                 more--;
             }
@@ -1271,7 +1324,7 @@ local block_state deflate_fast(s, flush)
 #ifndef FASTEST
             if (s->match_length <= s->max_insert_length &&
                 s->lookahead >= MIN_MATCH) {
-                s->match_length--; /* string at strstart already in hash table */
+                s->match_length--; /* string at strstart already in table */
                 do {
                     s->strstart++;
                     INSERT_STRING(s, s->strstart, hash_head);
@@ -1361,7 +1414,7 @@ local block_state deflate_slow(s, flush)
             /* longest_match() or longest_match_fast() sets match_start */
 
             if (s->match_length <= 5 && (s->strategy == Z_FILTERED
-#if TOO_FAR < 32768
+#if TOO_FAR <= 32767
                 || (s->match_length == MIN_MATCH &&
                     s->strstart - s->match_start > TOO_FAR)
 #endif

deflate.h

@@ -15,6 +15,14 @@
 
 #include "zutil.h"
 
+/* define NO_GZIP when compiling if you want to disable gzip header and
+   trailer creation by deflate().  NO_GZIP would be used to avoid linking in
+   the crc code when it is not needed.  For shared libraries, gzip encoding
+   should be left enabled. */
+#ifndef NO_GZIP
+#  define GZIP
+#endif
+
 /* ===========================================================================
  * Internal compression state.
  */
@@ -86,7 +94,7 @@ typedef struct internal_state {
     ulg   pending_buf_size; /* size of pending_buf */
     Bytef *pending_out;  /* next pending byte to output to the stream */
     int   pending;       /* nb of bytes in the pending buffer */
-    int   noheader;      /* suppress zlib header and adler32 */
+    int   wrap;          /* bit 0 true for zlib, bit 1 true for gzip */
     Byte  data_type;     /* UNKNOWN, BINARY or ASCII */
     Byte  method;        /* STORED (for zip only) or DEFLATED */
     int   last_flush;    /* value of flush param for previous deflate call */

example.c

@@ -38,8 +38,8 @@ 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,
+void test_gzio          OF((const char *fname,
-                            Byte *uncompr, int uncomprLen));
+                            Byte *uncompr, uLong uncomprLen));
 void test_deflate       OF((Byte *compr, uLong comprLen));
 void test_inflate       OF((Byte *compr, uLong comprLen,
                             Byte *uncompr, uLong uncomprLen));
@@ -63,7 +63,7 @@ void test_compress(compr, comprLen, uncompr, uncomprLen)
     uLong comprLen, uncomprLen;
 {
     int err;
-    uLong len = strlen(hello)+1;
+    uLong len = (uLong)strlen(hello)+1;
 
     err = compress(compr, &comprLen, (const Bytef*)hello, len);
     CHECK_ERR(err, "compress");
@@ -84,18 +84,20 @@ void test_compress(compr, comprLen, uncompr, uncomprLen)
 /* ===========================================================================
  * Test read/write of .gz files
  */
-void test_gzio(out, in, uncompr, uncomprLen)
+void test_gzio(fname, uncompr, uncomprLen)
-    const char *out; /* compressed output file */
+    const char *fname; /* compressed file name */
-    const char *in;  /* compressed input file */
     Byte *uncompr;
-    int  uncomprLen;
+    uLong uncomprLen;
 {
+#ifdef NO_GZCOMPRESS
+    fprintf(stderr, "NO_GZCOMPRESS -- gz* functions cannot compress\n");
+#else
     int err;
-    int len = strlen(hello)+1;
+    int len = (int)strlen(hello)+1;
     gzFile file;
     z_off_t pos;
 
-    file = gzopen(out, "wb");
+    file = gzopen(fname, "wb");
     if (file == NULL) {
         fprintf(stderr, "gzopen error\n");
         exit(1);
@@ -112,14 +114,14 @@ void test_gzio(out, in, uncompr, uncomprLen)
     gzseek(file, 1L, SEEK_CUR); /* add one zero byte */
     gzclose(file);
 
-    file = gzopen(in, "rb");
+    file = gzopen(fname, "rb");
     if (file == NULL) {
         fprintf(stderr, "gzopen error\n");
+        exit(1);
     }
     strcpy((char*)uncompr, "garbage");
 
-    uncomprLen = gzread(file, uncompr, (unsigned)uncomprLen);
+    if (gzread(file, uncompr, (unsigned)uncomprLen) != len) {
-    if (uncomprLen != len) {
         fprintf(stderr, "gzread err: %s\n", gzerror(file, &err));
         exit(1);
     }
@@ -127,7 +129,7 @@ void test_gzio(out, in, uncompr, uncomprLen)
         fprintf(stderr, "bad gzread: %s\n", (char*)uncompr);
         exit(1);
     } else {
-        printf("gzread(): %s\n", (char *)uncompr);
+        printf("gzread(): %s\n", (char*)uncompr);
     }
 
     pos = gzseek(file, -8L, SEEK_CUR);
@@ -147,20 +149,20 @@ void test_gzio(out, in, uncompr, uncomprLen)
         exit(1);
     }
 
-    gzgets(file, (char*)uncompr, uncomprLen);
+    gzgets(file, (char*)uncompr, (int)uncomprLen);
-    uncomprLen = strlen((char*)uncompr);
+    if (strlen((char*)uncompr) != 7) { /* " hello!" */
-    if (uncomprLen != 7) { /* " hello!" */
         fprintf(stderr, "gzgets err after gzseek: %s\n", gzerror(file, &err));
         exit(1);
     }
-    if (strcmp((char*)uncompr, hello+6)) {
+    if (strcmp((char*)uncompr, hello + 6)) {
         fprintf(stderr, "bad gzgets after gzseek\n");
         exit(1);
     } else {
-        printf("gzgets() after gzseek: %s\n", (char *)uncompr);
+        printf("gzgets() after gzseek: %s\n", (char*)uncompr);
     }
 
     gzclose(file);
+#endif
 }
 
 /* ===========================================================================
@@ -172,7 +174,7 @@ void test_deflate(compr, comprLen)
 {
     z_stream c_stream; /* compression stream */
     int err;
-    int len = strlen(hello)+1;
+    uLong len = (uLong)strlen(hello)+1;
 
     c_stream.zalloc = (alloc_func)0;
     c_stream.zfree = (free_func)0;
@@ -184,7 +186,7 @@ void test_deflate(compr, comprLen)
     c_stream.next_in  = (Bytef*)hello;
     c_stream.next_out = compr;
 
-    while (c_stream.total_in != (uLong)len && c_stream.total_out < comprLen) {
+    while (c_stream.total_in != len && c_stream.total_out < comprLen) {
         c_stream.avail_in = c_stream.avail_out = 1; /* force small buffers */
         err = deflate(&c_stream, Z_NO_FLUSH);
         CHECK_ERR(err, "deflate");
@@ -347,7 +349,7 @@ void test_flush(compr, comprLen)
 {
     z_stream c_stream; /* compression stream */
     int err;
-    int len = strlen(hello)+1;
+    uInt len = (uInt)strlen(hello)+1;
 
     c_stream.zalloc = (alloc_func)0;
     c_stream.zfree = (free_func)0;
@@ -543,8 +545,7 @@ int main(argc, argv)
     test_compress(compr, comprLen, uncompr, uncomprLen);
 
     test_gzio((argc > 1 ? argv[1] : TESTFILE),
-              (argc > 2 ? argv[2] : TESTFILE),
+              uncompr, uncomprLen);
-              uncompr, (int)uncomprLen);
 
     test_deflate(compr, comprLen);
     test_inflate(compr, comprLen, uncompr, uncomprLen);