am 30407b3f: Merge "[MIPS] Use NDK libs for ARM builds only"
* commit '30407b3fb9d461c2be733daffeadcb0d46b669b2':
[MIPS] Use NDK libs for ARM builds only
diff --git a/Android.mk b/Android.mk
index d6c4e0d..db069cf 100644
--- a/Android.mk
+++ b/Android.mk
@@ -9,18 +9,18 @@
adler32.c \
compress.c \
crc32.c \
+ deflate.c \
gzclose.c \
gzlib.c \
gzread.c \
gzwrite.c \
- uncompr.c \
- deflate.c \
- trees.c \
- zutil.c \
- inflate.c \
infback.c \
+ inflate.c \
inftrees.c \
- inffast.c
+ inffast.c \
+ trees.c \
+ uncompr.c \
+ zutil.c
LOCAL_MODULE := libz
LOCAL_MODULE_TAGS := optional
@@ -56,22 +56,21 @@
-unzip_files := \
- adler32.c \
- crc32.c \
- zutil.c \
- inflate.c \
- inftrees.c \
- inffast.c
+# libunz used to be an unzip-only subset of libz. Only host-side tools were
+# taking advantage of it, though, and it's not a notion supported by zlib
+# itself. This caused trouble during the 1.2.6 upgrade because libunz ended
+# up needing to drag in most of the other files anyway. So this is a first
+# step towards killing libunz. If you're reading this in the K release or
+# later, please see if you can get a bit further in removing libunz...
include $(CLEAR_VARS)
-LOCAL_SRC_FILES := $(unzip_files)
+LOCAL_SRC_FILES := $(zlib_files)
LOCAL_MODULE:= libunz
LOCAL_ARM_MODE := arm
include $(BUILD_HOST_STATIC_LIBRARY)
include $(CLEAR_VARS)
-LOCAL_SRC_FILES := $(unzip_files)
+LOCAL_SRC_FILES := $(zlib_files)
LOCAL_MODULE:= libunz
LOCAL_ARM_MODE := arm
ifeq ($(TARGET_ARCH),arm)
@@ -83,7 +82,7 @@
include $(CLEAR_VARS)
LOCAL_SRC_FILES:= \
- minigzip.c
+ test/minigzip.c
LOCAL_MODULE:= gzip
@@ -94,7 +93,7 @@
include $(CLEAR_VARS)
LOCAL_SRC_FILES:= \
- minigzip.c
+ test/minigzip.c
LOCAL_MODULE:= minigzip
diff --git a/CMakeLists.txt b/CMakeLists.txt
index a64fe0b..0a56ff6 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -110,9 +110,14 @@
trees.c
uncompr.c
zutil.c
- win32/zlib1.rc
)
+if(NOT MINGW)
+ set(ZLIB_SRCS ${ZLIB_SRCS}
+ win32/zlib1.rc # If present will override custom build rule below.
+ )
+endif()
+
# parse the full version number from zlib.h and include in ZLIB_FULL_VERSION
file(READ ${CMAKE_CURRENT_SOURCE_DIR}/zlib.h _zlib_h_contents)
string(REGEX REPLACE ".*#define[ \t]+ZLIB_VERSION[ \t]+\"([0-9A-Za-z.]+)\".*"
@@ -120,8 +125,12 @@
if(MINGW)
# This gets us DLL resource information when compiling on MinGW.
+ if(NOT CMAKE_RC_COMPILER)
+ SET(CMAKE_RC_COMPILER windres.exe)
+ endif()
+
add_custom_command(OUTPUT ${CMAKE_CURRENT_BINARY_DIR}/zlib1rc.obj
- COMMAND windres.exe
+ COMMAND ${CMAKE_RC_COMPILER}
-D GCC_WINDRES
-I ${CMAKE_CURRENT_SOURCE_DIR}
-I ${CMAKE_CURRENT_BINARY_DIR}
@@ -171,20 +180,20 @@
# Example binaries
#============================================================================
-add_executable(example example.c)
+add_executable(example test/example.c)
target_link_libraries(example zlib)
add_test(example example)
-add_executable(minigzip minigzip.c)
+add_executable(minigzip test/minigzip.c)
target_link_libraries(minigzip zlib)
if(HAVE_OFF64_T)
- add_executable(example64 example.c)
+ add_executable(example64 test/example.c)
target_link_libraries(example64 zlib)
set_target_properties(example64 PROPERTIES COMPILE_FLAGS "-D_FILE_OFFSET_BITS=64")
add_test(example64 example64)
- add_executable(minigzip64 minigzip.c)
+ add_executable(minigzip64 test/minigzip.c)
target_link_libraries(minigzip64 zlib)
set_target_properties(minigzip64 PROPERTIES COMPILE_FLAGS "-D_FILE_OFFSET_BITS=64")
endif()
diff --git a/ChangeLog b/ChangeLog
index f310bb0..6fa5d44 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,12 +1,151 @@
ChangeLog file for zlib
+Changes in 1.2.6 (29 Jan 2012)
+- Update the Pascal interface in contrib/pascal
+- Fix function numbers for gzgetc_ in zlibvc.def files
+- Fix configure.ac for contrib/minizip [Schiffer]
+- Fix large-entry detection in minizip on 64-bit systems [Schiffer]
+- Have ./configure use the compiler return code for error indication
+- Fix CMakeLists.txt for cross compilation [McClure]
+- Fix contrib/minizip/zip.c for 64-bit architectures [Dalsnes]
+- Fix compilation of contrib/minizip on FreeBSD [Marquez]
+- Correct suggested usages in win32/Makefile.msc [Shachar, Horvath]
+- Include io.h for Turbo C / Borland C on all platforms [Truta]
+- Make version explicit in contrib/minizip/configure.ac [Bosmans]
+- Avoid warning for no encryption in contrib/minizip/zip.c [Vollant]
+- Minor cleanup up contrib/minizip/unzip.c [Vollant]
+- Fix bug when compiling minizip with C++ [Vollant]
+- Protect for long name and extra fields in contrib/minizip [Vollant]
+- Avoid some warnings in contrib/minizip [Vollant]
+- Add -I../.. -L../.. to CFLAGS for minizip and miniunzip
+- Add missing libs to minizip linker command
+- Add support for VPATH builds in contrib/minizip
+- Add an --enable-demos option to contrib/minizip/configure
+- Add the generation of configure.log by ./configure
+- Exit when required parameters not provided to win32/Makefile.gcc
+- Have gzputc return the character written instead of the argument
+- Use the -m option on ldconfig for BSD systems [Tobias]
+- Correct in zlib.map when deflateResetKeep was added
+
+Changes in 1.2.5.3 (15 Jan 2012)
+- Restore gzgetc function for binary compatibility
+- Do not use _lseeki64 under Borland C++ [Truta]
+- Update win32/Makefile.msc to build test/*.c [Truta]
+- Remove old/visualc6 given CMakefile and other alternatives
+- Update AS400 build files and documentation [Monnerat]
+- Update win32/Makefile.gcc to build test/*.c [Truta]
+- Permit stronger flushes after Z_BLOCK flushes
+- Avoid extraneous empty blocks when doing empty flushes
+- Permit Z_NULL arguments to deflatePending
+- Allow deflatePrime() to insert bits in the middle of a stream
+- Remove second empty static block for Z_PARTIAL_FLUSH
+- Write out all of the available bits when using Z_BLOCK
+- Insert the first two strings in the hash table after a flush
+
+Changes in 1.2.5.2 (17 Dec 2011)
+- fix ld error: unable to find version dependency 'ZLIB_1.2.5'
+- use relative symlinks for shared libs
+- Avoid searching past window for Z_RLE strategy
+- Assure that high-water mark initialization is always applied in deflate
+- Add assertions to fill_window() in deflate.c to match comments
+- Update python link in README
+- Correct spelling error in gzread.c
+- Fix bug in gzgets() for a concatenated empty gzip stream
+- Correct error in comment for gz_make()
+- Change gzread() and related to ignore junk after gzip streams
+- Allow gzread() and related to continue after gzclearerr()
+- Allow gzrewind() and gzseek() after a premature end-of-file
+- Simplify gzseek() now that raw after gzip is ignored
+- Change gzgetc() to a macro for speed (~40% speedup in testing)
+- Fix gzclose() to return the actual error last encountered
+- Always add large file support for windows
+- Include zconf.h for windows large file support
+- Include zconf.h.cmakein for windows large file support
+- Update zconf.h.cmakein on make distclean
+- Merge vestigial vsnprintf determination from zutil.h to gzguts.h
+- Clarify how gzopen() appends in zlib.h comments
+- Correct documentation of gzdirect() since junk at end now ignored
+- Add a transparent write mode to gzopen() when 'T' is in the mode
+- Update python link in zlib man page
+- Get inffixed.h and MAKEFIXED result to match
+- Add a ./config --solo option to make zlib subset with no libary use
+- Add undocumented inflateResetKeep() function for CAB file decoding
+- Add --cover option to ./configure for gcc coverage testing
+- Add #define ZLIB_CONST option to use const in the z_stream interface
+- Add comment to gzdopen() in zlib.h to use dup() when using fileno()
+- Note behavior of uncompress() to provide as much data as it can
+- Add files in contrib/minizip to aid in building libminizip
+- Split off AR options in Makefile.in and configure
+- Change ON macro to Z_ARG to avoid application conflicts
+- Facilitate compilation with Borland C++ for pragmas and vsnprintf
+- Include io.h for Turbo C / Borland C++
+- Move example.c and minigzip.c to test/
+- Simplify incomplete code table filling in inflate_table()
+- Remove code from inflate.c and infback.c that is impossible to execute
+- Test the inflate code with full coverage
+- Allow deflateSetDictionary, inflateSetDictionary at any time (in raw)
+- Add deflateResetKeep and fix inflateResetKeep to retain dictionary
+- Fix gzwrite.c to accommodate reduced memory zlib compilation
+- Have inflate() with Z_FINISH avoid the allocation of a window
+- Do not set strm->adler when doing raw inflate
+- Fix gzeof() to behave just like feof() when read is not past end of file
+- Fix bug in gzread.c when end-of-file is reached
+- Avoid use of Z_BUF_ERROR in gz* functions except for premature EOF
+- Document gzread() capability to read concurrently written files
+- Remove hard-coding of resource compiler in CMakeLists.txt [Blammo]
+
+Changes in 1.2.5.1 (10 Sep 2011)
+- Update FAQ entry on shared builds (#13)
+- Avoid symbolic argument to chmod in Makefile.in
+- Fix bug and add consts in contrib/puff [Oberhumer]
+- Update contrib/puff/zeros.raw test file to have all block types
+- Add full coverage test for puff in contrib/puff/Makefile
+- Fix static-only-build install in Makefile.in
+- Fix bug in unzGetCurrentFileInfo() in contrib/minizip [Kuno]
+- Add libz.a dependency to shared in Makefile.in for parallel builds
+- Spell out "number" (instead of "nb") in zlib.h for total_in, total_out
+- Replace $(...) with `...` in configure for non-bash sh [Bowler]
+- Add darwin* to Darwin* and solaris* to SunOS\ 5* in configure [Groffen]
+- Add solaris* to Linux* in configure to allow gcc use [Groffen]
+- Add *bsd* to Linux* case in configure [Bar-Lev]
+- Add inffast.obj to dependencies in win32/Makefile.msc
+- Correct spelling error in deflate.h [Kohler]
+- Change libzdll.a again to libz.dll.a (!) in win32/Makefile.gcc
+- Add test to configure for GNU C looking for gcc in output of $cc -v
+- Add zlib.pc generation to win32/Makefile.gcc [Weigelt]
+- Fix bug in zlib.h for _FILE_OFFSET_BITS set and _LARGEFILE64_SOURCE not
+- Add comment in zlib.h that adler32_combine with len2 < 0 makes no sense
+- Make NO_DIVIDE option in adler32.c much faster (thanks to John Reiser)
+- Make stronger test in zconf.h to include unistd.h for LFS
+- Apply Darwin patches for 64-bit file offsets to contrib/minizip [Slack]
+- Fix zlib.h LFS support when Z_PREFIX used
+- Add updated as400 support (removed from old) [Monnerat]
+- Avoid deflate sensitivity to volatile input data
+- Avoid division in adler32_combine for NO_DIVIDE
+- Clarify the use of Z_FINISH with deflateBound() amount of space
+- Set binary for output file in puff.c
+- Use u4 type for crc_table to avoid conversion warnings
+- Apply casts in zlib.h to avoid conversion warnings
+- Add OF to prototypes for adler32_combine_ and crc32_combine_ [Miller]
+- Improve inflateSync() documentation to note indeterminancy
+- Add deflatePending() function to return the amount of pending output
+- Correct the spelling of "specification" in FAQ [Randers-Pehrson]
+- Add a check in configure for stdarg.h, use for gzprintf()
+- Check that pointers fit in ints when gzprint() compiled old style
+- Add dummy name before $(SHAREDLIBV) in Makefile [Bar-Lev, Bowler]
+- Delete line in configure that adds -L. libz.a to LDFLAGS [Weigelt]
+- Add debug records in assmebler code [Londer]
+- Update RFC references to use http://tools.ietf.org/html/... [Li]
+- Add --archs option, use of libtool to configure for Mac OS X [Borstel]
+
Changes in 1.2.5 (19 Apr 2010)
- Disable visibility attribute in win32/Makefile.gcc [Bar-Lev]
- Default to libdir as sharedlibdir in configure [Nieder]
- Update copyright dates on modified source files
- Update trees.c to be able to generate modified trees.h
- Exit configure for MinGW, suggesting win32/Makefile.gcc
+- Check for NULL path in gz_open [Homurlu]
Changes in 1.2.4.5 (18 Apr 2010)
- Set sharedlibdir in configure [Torok]
@@ -261,7 +400,7 @@
- Clear bytes after deflate lookahead to avoid use of uninitialized data
- Change a limit in inftrees.c to be more transparent to Coverity Prevent
- Update win32/zlib.def with exported symbols from zlib.h
-- Correct spelling error in zlib.h [Willem]
+- Correct spelling errors in zlib.h [Willem, Sobrado]
- Allow Z_BLOCK for deflate() to force a new block
- Allow negative bits in inflatePrime() to delete existing bit buffer
- Add Z_TREES flush option to inflate() to return at end of trees
diff --git a/FAQ b/FAQ
index 1a22750..99b7cf9 100644
--- a/FAQ
+++ b/FAQ
@@ -44,8 +44,8 @@
6. Where's the zlib documentation (man pages, etc.)?
- It's in zlib.h . Examples of zlib usage are in the files example.c and
- minigzip.c, with more in examples/ .
+ It's in zlib.h . Examples of zlib usage are in the files test/example.c
+ and test/minigzip.c, with more in examples/ .
7. Why don't you use GNU autoconf or libtool or ...?
@@ -84,8 +84,10 @@
13. How can I make a Unix shared library?
- make clean
- ./configure -s
+ By default a shared (and a static) library is built for Unix. So:
+
+ make distclean
+ ./configure
make
14. How do I install a shared zlib library on Unix?
@@ -325,7 +327,7 @@
correctly points to the zlib specification in RFC 1950 for the "deflate"
transfer encoding, there have been reports of servers and browsers that
incorrectly produce or expect raw deflate data per the deflate
- specficiation in RFC 1951, most notably Microsoft. So even though the
+ specification in RFC 1951, most notably Microsoft. So even though the
"deflate" transfer encoding using the zlib format would be the more
efficient approach (and in fact exactly what the zlib format was designed
for), using the "gzip" transfer encoding is probably more reliable due to
diff --git a/INDEX b/INDEX
index f6c51ca..246f5f4 100644
--- a/INDEX
+++ b/INDEX
@@ -7,6 +7,9 @@
README guess what
configure configure script for Unix
make_vms.com makefile for VMS
+test/example.c zlib usages examples for build testing
+test/minigzip.c minimal gzip-like functionality for build testing
+test/infcover.c inf*.c code coverage for build coverage testing
treebuild.xml XML description of source file dependencies
zconf.h.cmakein zconf.h template for cmake
zconf.h.in zconf.h template for configure
@@ -17,6 +20,7 @@
zlib2ansi perl script to convert source files for C++ compilation
amiga/ makefiles for Amiga SAS C
+as400/ makefiles for AS/400
doc/ documentation for formats and algorithms
msdos/ makefiles for MSDOS
nintendods/ makefile for Nintendo DS
@@ -56,10 +60,8 @@
zutil.c
zutil.h
- source files for sample programs:
-example.c
-minigzip.c
-See examples/README.examples for more
+ source files for sample programs
+See examples/README.examples
- unsupported contribution by third parties
+ unsupported contributions by third parties
See contrib/README.contrib
diff --git a/Makefile b/Makefile
index 6bba86c..1bcb8f4 100644
--- a/Makefile
+++ b/Makefile
@@ -1,5 +1,285 @@
-all:
- -@echo "Please use ./configure first. Thank you."
+# Makefile for zlib
+# Copyright (C) 1995-2011 Jean-loup Gailly.
+# For conditions of distribution and use, see copyright notice in zlib.h
-distclean:
- make -f Makefile.in distclean
+# To compile and test, type:
+# ./configure; make test
+# Normally configure builds both a static and a shared library.
+# If you want to build just a static library, use: ./configure --static
+
+# 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 $HOME instead of /usr/local, use:
+# make install prefix=$HOME
+
+CC=gcc
+
+CFLAGS=-O3 -D_LARGEFILE64_SOURCE=1
+#CFLAGS=-O -DMAX_WBITS=14 -DMAX_MEM_LEVEL=7
+#CFLAGS=-g -DDEBUG
+#CFLAGS=-O3 -Wall -Wwrite-strings -Wpointer-arith -Wconversion \
+# -Wstrict-prototypes -Wmissing-prototypes
+
+SFLAGS=-O3 -fPIC -D_LARGEFILE64_SOURCE=1
+LDFLAGS=
+TEST_LDFLAGS=-L. libz.a
+LDSHARED=gcc -shared -Wl,-soname,libz.so.1,--version-script,zlib.map
+CPP=gcc -E
+
+STATICLIB=libz.a
+SHAREDLIB=libz.so
+SHAREDLIBV=libz.so.1.2.6
+SHAREDLIBM=libz.so.1
+LIBS=$(STATICLIB) $(SHAREDLIBV)
+
+AR=ar
+ARFLAGS=rc
+RANLIB=ranlib
+LDCONFIG=ldconfig
+LDSHAREDLIBC=-lc
+TAR=tar
+SHELL=/bin/sh
+EXE=
+
+prefix =/usr/local
+exec_prefix =${prefix}
+libdir =${exec_prefix}/lib
+sharedlibdir =${libdir}
+includedir =${prefix}/include
+mandir =${prefix}/share/man
+man3dir = ${mandir}/man3
+pkgconfigdir = ${libdir}/pkgconfig
+tempfile := $(shell mktemp -u __XXXXXX)
+
+OBJZ = adler32.o crc32.o deflate.o infback.o inffast.o inflate.o inftrees.o trees.o zutil.o
+OBJG = compress.o uncompr.o gzclose.o gzlib.o gzread.o gzwrite.o
+OBJC = $(OBJZ) $(OBJG)
+
+PIC_OBJZ = adler32.lo crc32.lo deflate.lo infback.lo inffast.lo inflate.lo inftrees.lo trees.lo zutil.lo
+PIC_OBJG = compress.lo uncompr.lo gzclose.lo gzlib.lo gzread.lo gzwrite.lo
+PIC_OBJC = $(PIC_OBJZ) $(PIC_OBJG)
+
+# to use the asm code: make OBJA=match.o, PIC_OBJA=match.lo
+OBJA =
+PIC_OBJA =
+
+OBJS = $(OBJC) $(OBJA)
+
+PIC_OBJS = $(PIC_OBJC) $(PIC_OBJA)
+
+all: static shared all64
+
+static: example$(EXE) minigzip$(EXE)
+
+shared: examplesh$(EXE) minigzipsh$(EXE)
+
+all64: example64$(EXE) minigzip64$(EXE)
+
+check: test
+
+test: all teststatic testshared test64
+
+teststatic: static
+ @if echo hello world | ./minigzip | ./minigzip -d && ./example; then \
+ echo ' *** zlib test OK ***'; \
+ else \
+ echo ' *** zlib test FAILED ***'; false; \
+ fi
+ -@rm -f foo.gz
+
+testshared: shared
+ @LD_LIBRARY_PATH=`pwd`:$(LD_LIBRARY_PATH) ; export LD_LIBRARY_PATH; \
+ LD_LIBRARYN32_PATH=`pwd`:$(LD_LIBRARYN32_PATH) ; export LD_LIBRARYN32_PATH; \
+ DYLD_LIBRARY_PATH=`pwd`:$(DYLD_LIBRARY_PATH) ; export DYLD_LIBRARY_PATH; \
+ SHLIB_PATH=`pwd`:$(SHLIB_PATH) ; export SHLIB_PATH; \
+ if echo hello world | ./minigzipsh | ./minigzipsh -d && ./examplesh; then \
+ echo ' *** zlib shared test OK ***'; \
+ else \
+ echo ' *** zlib shared test FAILED ***'; false; \
+ fi
+ -@rm -f foo.gz
+
+test64: all64
+ @if echo hello world | ./minigzip64 | ./minigzip64 -d && ./example64; then \
+ echo ' *** zlib 64-bit test OK ***'; \
+ else \
+ echo ' *** zlib 64-bit test FAILED ***'; false; \
+ fi
+ -@rm -f foo.gz
+
+infcover.o: test/infcover.c zlib.h zconf.h
+ $(CC) $(CFLAGS) -I. -c -o $@ test/infcover.c
+
+infcover: infcover.o libz.a
+ $(CC) $(CFLAGS) -o $@ infcover.o libz.a
+
+cover: infcover
+ rm -f *.gcda
+ ./infcover
+ gcov inf*.c
+
+libz.a: $(OBJS)
+ $(AR) $(ARFLAGS) $@ $(OBJS)
+ -@ ($(RANLIB) $@ || true) >/dev/null 2>&1
+
+match.o: match.S
+ $(CPP) match.S > _match.s
+ $(CC) -c _match.s
+ mv _match.o match.o
+ rm -f _match.s
+
+match.lo: match.S
+ $(CPP) match.S > _match.s
+ $(CC) -c -fPIC _match.s
+ mv _match.o match.lo
+ rm -f _match.s
+
+example.o: test/example.c zlib.h zconf.h
+ $(CC) $(CFLAGS) -I. -c -o $@ test/example.c
+
+minigzip.o: test/minigzip.c zlib.h zconf.h
+ $(CC) $(CFLAGS) -I. -c -o $@ test/minigzip.c
+
+example64.o: test/example.c zlib.h zconf.h
+ $(CC) $(CFLAGS) -I. -D_FILE_OFFSET_BITS=64 -c -o $@ test/example.c
+
+minigzip64.o: test/minigzip.c zlib.h zconf.h
+ $(CC) $(CFLAGS) -I. -D_FILE_OFFSET_BITS=64 -c -o $@ test/minigzip.c
+
+.SUFFIXES: .lo
+
+.c.lo:
+ -@mkdir objs 2>/dev/null || test -d objs
+ $(CC) $(SFLAGS) -DPIC -c -o objs/$*.o $<
+ -@mv objs/$*.o $@
+
+placebo $(SHAREDLIBV): $(PIC_OBJS) libz.a
+ $(LDSHARED) $(SFLAGS) -o $@ $(PIC_OBJS) $(LDSHAREDLIBC) $(LDFLAGS)
+ rm -f $(SHAREDLIB) $(SHAREDLIBM)
+ ln -s $@ $(SHAREDLIB)
+ ln -s $@ $(SHAREDLIBM)
+ -@rmdir objs
+
+example$(EXE): example.o $(STATICLIB)
+ $(CC) $(CFLAGS) -o $@ example.o $(TEST_LDFLAGS)
+
+minigzip$(EXE): minigzip.o $(STATICLIB)
+ $(CC) $(CFLAGS) -o $@ minigzip.o $(TEST_LDFLAGS)
+
+examplesh$(EXE): example.o $(SHAREDLIBV)
+ $(CC) $(CFLAGS) -o $@ example.o -L. $(SHAREDLIBV)
+
+minigzipsh$(EXE): minigzip.o $(SHAREDLIBV)
+ $(CC) $(CFLAGS) -o $@ minigzip.o -L. $(SHAREDLIBV)
+
+example64$(EXE): example64.o $(STATICLIB)
+ $(CC) $(CFLAGS) -o $@ example64.o $(TEST_LDFLAGS)
+
+minigzip64$(EXE): minigzip64.o $(STATICLIB)
+ $(CC) $(CFLAGS) -o $@ minigzip64.o $(TEST_LDFLAGS)
+
+install-libs: $(LIBS)
+ -@if [ ! -d $(DESTDIR)$(exec_prefix) ]; then mkdir -p $(DESTDIR)$(exec_prefix); fi
+ -@if [ ! -d $(DESTDIR)$(libdir) ]; then mkdir -p $(DESTDIR)$(libdir); fi
+ -@if [ ! -d $(DESTDIR)$(sharedlibdir) ]; then mkdir -p $(DESTDIR)$(sharedlibdir); fi
+ -@if [ ! -d $(DESTDIR)$(man3dir) ]; then mkdir -p $(DESTDIR)$(man3dir); fi
+ -@if [ ! -d $(DESTDIR)$(pkgconfigdir) ]; then mkdir -p $(DESTDIR)$(pkgconfigdir); fi
+ cp $(STATICLIB) $(DESTDIR)$(libdir)
+ chmod 644 $(DESTDIR)$(libdir)/$(STATICLIB)
+ -@($(RANLIB) $(DESTDIR)$(libdir)/libz.a || true) >/dev/null 2>&1
+ -@if test -n "$(SHAREDLIBV)"; then \
+ cp $(SHAREDLIBV) $(DESTDIR)$(sharedlibdir); \
+ echo "cp $(SHAREDLIBV) $(DESTDIR)$(sharedlibdir)"; \
+ chmod 755 $(DESTDIR)$(sharedlibdir)/$(SHAREDLIBV); \
+ echo "chmod 755 $(DESTDIR)$(sharedlibdir)/$(SHAREDLIBV)"; \
+ rm -f $(DESTDIR)$(sharedlibdir)/$(SHAREDLIB) $(DESTDIR)$(sharedlibdir)/$(SHAREDLIBM); \
+ ln -s $(SHAREDLIBV) $(DESTDIR)$(sharedlibdir)/$(SHAREDLIB); \
+ ln -s $(SHAREDLIBV) $(DESTDIR)$(sharedlibdir)/$(SHAREDLIBM); \
+ ($(LDCONFIG) || true) >/dev/null 2>&1; \
+ fi
+ cp zlib.3 $(DESTDIR)$(man3dir)
+ chmod 644 $(DESTDIR)$(man3dir)/zlib.3
+ cp zlib.pc $(DESTDIR)$(pkgconfigdir)
+ chmod 644 $(DESTDIR)$(pkgconfigdir)/zlib.pc
+# The ranlib in install is needed on NeXTSTEP which checks file times
+# ldconfig is for Linux
+
+install: install-libs
+ -@if [ ! -d $(DESTDIR)$(includedir) ]; then mkdir -p $(DESTDIR)$(includedir); fi
+ cp zlib.h zconf.h $(DESTDIR)$(includedir)
+ chmod 644 $(DESTDIR)$(includedir)/zlib.h $(DESTDIR)$(includedir)/zconf.h
+
+uninstall:
+ cd $(DESTDIR)$(includedir); rm -f zlib.h zconf.h
+ cd $(DESTDIR)$(libdir); rm -f libz.a; \
+ if test -n "$(SHAREDLIBV)" -a -f $(SHAREDLIBV); then \
+ rm -f $(SHAREDLIBV) $(SHAREDLIB) $(SHAREDLIBM); \
+ fi
+ cd $(DESTDIR)$(man3dir); rm -f zlib.3
+ cd $(DESTDIR)$(pkgconfigdir); rm -f zlib.pc
+
+docs: zlib.3.pdf
+
+zlib.3.pdf: zlib.3
+ groff -mandoc -f H -T ps zlib.3 | ps2pdf - zlib.3.pdf
+
+zconf.h.cmakein: zconf.h.in
+ -@echo "/#define ZCONF_H/ a\\\\\n#cmakedefine Z_PREFIX\\\\\n#cmakedefine Z_HAVE_UNISTD_H\n" > $(tempfile)
+ -@sed -f $(tempfile) zconf.h.in > zconf.h.cmakein
+ -@touch -r zconf.h.in zconf.h.cmakein
+ -@rm $(tempfile)
+
+zconf: zconf.h.in
+ cp -p zconf.h.in zconf.h
+
+mostlyclean: clean
+clean:
+ rm -f *.o *.lo *~ \
+ example$(EXE) minigzip$(EXE) examplesh$(EXE) minigzipsh$(EXE) \
+ example64$(EXE) minigzip64$(EXE) \
+ infcover \
+ libz.* foo.gz so_locations \
+ _match.s maketree contrib/infback9/*.o
+ rm -rf objs
+ rm -f *.gcda *.gcno *.gcov
+ rm -f contrib/infback9/*.gcda contrib/infback9/*.gcno contrib/infback9/*.gcov
+
+maintainer-clean: distclean
+distclean: clean zconf zconf.h.cmakein docs
+ rm -f Makefile zlib.pc configure.log
+ -@rm -f .DS_Store
+ -@printf 'all:\n\t-@echo "Please use ./configure first. Thank you."\n' > Makefile
+ -@printf '\ndistclean:\n\tmake -f Makefile.in distclean\n' >> Makefile
+ -@touch -r Makefile.in Makefile
+
+tags:
+ etags *.[ch]
+
+depend:
+ makedepend -- $(CFLAGS) -- *.[ch]
+
+# DO NOT DELETE THIS LINE -- make depend depends on it.
+
+adler32.o zutil.o: zutil.h zlib.h zconf.h
+gzclose.o gzlib.o gzread.o gzwrite.o: zlib.h zconf.h gzguts.h
+compress.o example.o minigzip.o uncompr.o: zlib.h zconf.h
+crc32.o: zutil.h zlib.h zconf.h crc32.h
+deflate.o: deflate.h zutil.h zlib.h zconf.h
+infback.o inflate.o: zutil.h zlib.h zconf.h inftrees.h inflate.h inffast.h inffixed.h
+inffast.o: zutil.h zlib.h zconf.h inftrees.h inflate.h inffast.h
+inftrees.o: zutil.h zlib.h zconf.h inftrees.h
+trees.o: deflate.h zutil.h zlib.h zconf.h trees.h
+
+adler32.lo zutil.lo: zutil.h zlib.h zconf.h
+gzclose.lo gzlib.lo gzread.lo gzwrite.lo: zlib.h zconf.h gzguts.h
+compress.lo example.lo minigzip.lo uncompr.lo: zlib.h zconf.h
+crc32.lo: zutil.h zlib.h zconf.h crc32.h
+deflate.lo: deflate.h zutil.h zlib.h zconf.h
+infback.lo inflate.lo: zutil.h zlib.h zconf.h inftrees.h inflate.h inffast.h inffixed.h
+inffast.lo: zutil.h zlib.h zconf.h inftrees.h inflate.h inffast.h
+inftrees.lo: zutil.h zlib.h zconf.h inftrees.h
+trees.lo: deflate.h zutil.h zlib.h zconf.h trees.h
diff --git a/Makefile.in b/Makefile.in
index 5b15bd0..ea430bf 100644
--- a/Makefile.in
+++ b/Makefile.in
@@ -1,5 +1,5 @@
# Makefile for zlib
-# Copyright (C) 1995-2010 Jean-loup Gailly.
+# Copyright (C) 1995-2011 Jean-loup Gailly.
# For conditions of distribution and use, see copyright notice in zlib.h
# To compile and test, type:
@@ -32,11 +32,12 @@
STATICLIB=libz.a
SHAREDLIB=libz.so
-SHAREDLIBV=libz.so.1.2.5
+SHAREDLIBV=libz.so.1.2.6
SHAREDLIBM=libz.so.1
LIBS=$(STATICLIB) $(SHAREDLIBV)
-AR=ar rc
+AR=ar
+ARFLAGS=rc
RANLIB=ranlib
LDCONFIG=ldconfig
LDSHAREDLIBC=-lc
@@ -52,12 +53,15 @@
mandir = ${prefix}/share/man
man3dir = ${mandir}/man3
pkgconfigdir = ${libdir}/pkgconfig
+tempfile := $(shell mktemp -u __XXXXXX)
-OBJC = adler32.o compress.o crc32.o deflate.o gzclose.o gzlib.o gzread.o \
- gzwrite.o infback.o inffast.o inflate.o inftrees.o trees.o uncompr.o zutil.o
+OBJZ = adler32.o crc32.o deflate.o infback.o inffast.o inflate.o inftrees.o trees.o zutil.o
+OBJG = compress.o uncompr.o gzclose.o gzlib.o gzread.o gzwrite.o
+OBJC = $(OBJZ) $(OBJG)
-PIC_OBJC = adler32.lo compress.lo crc32.lo deflate.lo gzclose.lo gzlib.lo gzread.lo \
- gzwrite.lo infback.lo inffast.lo inflate.lo inftrees.lo trees.lo uncompr.lo zutil.lo
+PIC_OBJZ = adler32.lo crc32.lo deflate.lo infback.lo inffast.lo inflate.lo inftrees.lo trees.lo zutil.lo
+PIC_OBJG = compress.lo uncompr.lo gzclose.lo gzlib.lo gzread.lo gzwrite.lo
+PIC_OBJC = $(PIC_OBJZ) $(PIC_OBJG)
# to use the asm code: make OBJA=match.o, PIC_OBJA=match.lo
OBJA =
@@ -107,8 +111,19 @@
fi
-@rm -f foo.gz
+infcover.o: test/infcover.c zlib.h zconf.h
+ $(CC) $(CFLAGS) -I. -c -o $@ test/infcover.c
+
+infcover: infcover.o libz.a
+ $(CC) $(CFLAGS) -o $@ infcover.o libz.a
+
+cover: infcover
+ rm -f *.gcda
+ ./infcover
+ gcov inf*.c
+
libz.a: $(OBJS)
- $(AR) $@ $(OBJS)
+ $(AR) $(ARFLAGS) $@ $(OBJS)
-@ ($(RANLIB) $@ || true) >/dev/null 2>&1
match.o: match.S
@@ -123,11 +138,17 @@
mv _match.o match.lo
rm -f _match.s
-example64.o: example.c zlib.h zconf.h
- $(CC) $(CFLAGS) -D_FILE_OFFSET_BITS=64 -c -o $@ example.c
+example.o: test/example.c zlib.h zconf.h
+ $(CC) $(CFLAGS) -I. -c -o $@ test/example.c
-minigzip64.o: minigzip.c zlib.h zconf.h
- $(CC) $(CFLAGS) -D_FILE_OFFSET_BITS=64 -c -o $@ minigzip.c
+minigzip.o: test/minigzip.c zlib.h zconf.h
+ $(CC) $(CFLAGS) -I. -c -o $@ test/minigzip.c
+
+example64.o: test/example.c zlib.h zconf.h
+ $(CC) $(CFLAGS) -I. -D_FILE_OFFSET_BITS=64 -c -o $@ test/example.c
+
+minigzip64.o: test/minigzip.c zlib.h zconf.h
+ $(CC) $(CFLAGS) -I. -D_FILE_OFFSET_BITS=64 -c -o $@ test/minigzip.c
.SUFFIXES: .lo
@@ -136,7 +157,7 @@
$(CC) $(SFLAGS) -DPIC -c -o objs/$*.o $<
-@mv objs/$*.o $@
-$(SHAREDLIBV): $(PIC_OBJS)
+placebo $(SHAREDLIBV): $(PIC_OBJS) libz.a
$(LDSHARED) $(SFLAGS) -o $@ $(PIC_OBJS) $(LDSHAREDLIBC) $(LDFLAGS)
rm -f $(SHAREDLIB) $(SHAREDLIBM)
ln -s $@ $(SHAREDLIB)
@@ -168,14 +189,16 @@
-@if [ ! -d $(DESTDIR)$(man3dir) ]; then mkdir -p $(DESTDIR)$(man3dir); fi
-@if [ ! -d $(DESTDIR)$(pkgconfigdir) ]; then mkdir -p $(DESTDIR)$(pkgconfigdir); fi
cp $(STATICLIB) $(DESTDIR)$(libdir)
- cp $(SHAREDLIBV) $(DESTDIR)$(sharedlibdir)
- cd $(DESTDIR)$(libdir); chmod u=rw,go=r $(STATICLIB)
- -@(cd $(DESTDIR)$(libdir); $(RANLIB) libz.a || true) >/dev/null 2>&1
- -@cd $(DESTDIR)$(sharedlibdir); if test "$(SHAREDLIBV)" -a -f $(SHAREDLIBV); then \
- chmod 755 $(SHAREDLIBV); \
- rm -f $(SHAREDLIB) $(SHAREDLIBM); \
- ln -s $(SHAREDLIBV) $(SHAREDLIB); \
- ln -s $(SHAREDLIBV) $(SHAREDLIBM); \
+ chmod 644 $(DESTDIR)$(libdir)/$(STATICLIB)
+ -@($(RANLIB) $(DESTDIR)$(libdir)/libz.a || true) >/dev/null 2>&1
+ -@if test -n "$(SHAREDLIBV)"; then \
+ cp $(SHAREDLIBV) $(DESTDIR)$(sharedlibdir); \
+ echo "cp $(SHAREDLIBV) $(DESTDIR)$(sharedlibdir)"; \
+ chmod 755 $(DESTDIR)$(sharedlibdir)/$(SHAREDLIBV); \
+ echo "chmod 755 $(DESTDIR)$(sharedlibdir)/$(SHAREDLIBV)"; \
+ rm -f $(DESTDIR)$(sharedlibdir)/$(SHAREDLIB) $(DESTDIR)$(sharedlibdir)/$(SHAREDLIBM); \
+ ln -s $(SHAREDLIBV) $(DESTDIR)$(sharedlibdir)/$(SHAREDLIB); \
+ ln -s $(SHAREDLIBV) $(DESTDIR)$(sharedlibdir)/$(SHAREDLIBM); \
($(LDCONFIG) || true) >/dev/null 2>&1; \
fi
cp zlib.3 $(DESTDIR)$(man3dir)
@@ -193,7 +216,7 @@
uninstall:
cd $(DESTDIR)$(includedir); rm -f zlib.h zconf.h
cd $(DESTDIR)$(libdir); rm -f libz.a; \
- if test "$(SHAREDLIBV)" -a -f $(SHAREDLIBV); then \
+ if test -n "$(SHAREDLIBV)" -a -f $(SHAREDLIBV); then \
rm -f $(SHAREDLIBV) $(SHAREDLIB) $(SHAREDLIBM); \
fi
cd $(DESTDIR)$(man3dir); rm -f zlib.3
@@ -204,9 +227,11 @@
zlib.3.pdf: zlib.3
groff -mandoc -f H -T ps zlib.3 | ps2pdf - zlib.3.pdf
-zconf.h.in: zconf.h.cmakein
- sed "/^#cmakedefine/D" < zconf.h.cmakein > zconf.h.in
- touch -r zconf.h.cmakein zconf.h.in
+zconf.h.cmakein: zconf.h.in
+ -@echo "/#define ZCONF_H/ a\\\\\n#cmakedefine Z_PREFIX\\\\\n#cmakedefine Z_HAVE_UNISTD_H\n" > $(tempfile)
+ -@sed -f $(tempfile) zconf.h.in > zconf.h.cmakein
+ -@touch -r zconf.h.in zconf.h.cmakein
+ -@rm $(tempfile)
zconf: zconf.h.in
cp -p zconf.h.in zconf.h
@@ -216,13 +241,16 @@
rm -f *.o *.lo *~ \
example$(EXE) minigzip$(EXE) examplesh$(EXE) minigzipsh$(EXE) \
example64$(EXE) minigzip64$(EXE) \
+ infcover \
libz.* foo.gz so_locations \
_match.s maketree contrib/infback9/*.o
rm -rf objs
+ rm -f *.gcda *.gcno *.gcov
+ rm -f contrib/infback9/*.gcda contrib/infback9/*.gcno contrib/infback9/*.gcov
maintainer-clean: distclean
-distclean: clean zconf docs
- rm -f Makefile zlib.pc
+distclean: clean zconf zconf.h.cmakein docs
+ rm -f Makefile zlib.pc configure.log
-@rm -f .DS_Store
-@printf 'all:\n\t-@echo "Please use ./configure first. Thank you."\n' > Makefile
-@printf '\ndistclean:\n\tmake -f Makefile.in distclean\n' >> Makefile
diff --git a/README b/README
index d4219bf..09070e2 100644
--- a/README
+++ b/README
@@ -1,22 +1,22 @@
ZLIB DATA COMPRESSION LIBRARY
-zlib 1.2.5 is a general purpose data compression library. All the code is
+zlib 1.2.6 is a general purpose data compression library. All the code is
thread safe. The data format used by the zlib library is described by RFCs
(Request for Comments) 1950 to 1952 in the files
-http://www.ietf.org/rfc/rfc1950.txt (zlib format), rfc1951.txt (deflate format)
-and rfc1952.txt (gzip format).
+http://tools.ietf.org/html/rfc1950 (zlib format), rfc1951 (deflate format) and
+rfc1952 (gzip format).
All functions of the compression library are documented in the file zlib.h
(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
-minigzip.c.
+of the library is given in the file test/example.c which also tests that
+the library is working correctly. Another example is given in the file
+test/minigzip.c. The compression library itself is composed of all source
+files in the root directory.
To compile all files and run the test program, follow the instructions given at
the top of Makefile.in. In short "./configure; make test", and if that goes
-well, "make install" should work for most flavors of Unix. For Windows, use one
-of the special makefiles in win32/ or contrib/vstudio/ . For VMS, use
+well, "make install" should work for most flavors of Unix. For Windows, use
+one of the special makefiles in win32/ or contrib/vstudio/ . For VMS, use
make_vms.com.
Questions about zlib should be sent to <zlib@gzip.org>, or to Gilles Vollant
@@ -31,7 +31,7 @@
issue of Dr. Dobb's Journal; a copy of the article is available at
http://marknelson.us/1997/01/01/zlib-engine/ .
-The changes made in version 1.2.5 are documented in the file ChangeLog.
+The changes made in version 1.2.6 are documented in the file ChangeLog.
Unsupported third party contributions are provided in directory contrib/ .
@@ -44,7 +44,7 @@
A Python interface to zlib written by A.M. Kuchling <amk@amk.ca> is
available in Python 1.5 and later versions, see
-http://www.python.org/doc/lib/module-zlib.html .
+http://docs.python.org/library/zlib.html .
zlib is built into tcl: http://wiki.tcl.tk/4610 .
@@ -84,7 +84,7 @@
Copyright notice:
- (C) 1995-2010 Jean-loup Gailly and Mark Adler
+ (C) 1995-2012 Jean-loup Gailly and Mark Adler
This software is provided 'as-is', without any express or implied
warranty. In no event will the authors be held liable for any damages
diff --git a/adler32.c b/adler32.c
index 65ad6a5..a868f07 100644
--- a/adler32.c
+++ b/adler32.c
@@ -1,5 +1,5 @@
/* adler32.c -- compute the Adler-32 checksum of a data stream
- * Copyright (C) 1995-2007 Mark Adler
+ * Copyright (C) 1995-2011 Mark Adler
* For conditions of distribution and use, see copyright notice in zlib.h
*/
@@ -9,9 +9,9 @@
#define local static
-local uLong adler32_combine_(uLong adler1, uLong adler2, z_off64_t len2);
+local uLong adler32_combine_ OF((uLong adler1, uLong adler2, z_off64_t len2));
-#define BASE 65521UL /* largest prime smaller than 65536 */
+#define BASE 65521 /* largest prime smaller than 65536 */
#define NMAX 5552
/* NMAX is the largest n such that 255n(n+1)/2 + (n+1)(BASE-1) <= 2^32-1 */
@@ -21,39 +21,44 @@
#define DO8(buf,i) DO4(buf,i); DO4(buf,i+4);
#define DO16(buf) DO8(buf,0); DO8(buf,8);
-/* use NO_DIVIDE if your processor does not do division in hardware */
+/* use NO_DIVIDE if your processor does not do division in hardware --
+ try it both ways to see which is faster */
#ifdef NO_DIVIDE
-# define MOD(a) \
+/* note that this assumes BASE is 65521, where 65536 % 65521 == 15
+ (thank you to John Reiser for pointing this out) */
+# define CHOP(a) \
do { \
- if (a >= (BASE << 16)) a -= (BASE << 16); \
- if (a >= (BASE << 15)) a -= (BASE << 15); \
- if (a >= (BASE << 14)) a -= (BASE << 14); \
- if (a >= (BASE << 13)) a -= (BASE << 13); \
- if (a >= (BASE << 12)) a -= (BASE << 12); \
- if (a >= (BASE << 11)) a -= (BASE << 11); \
- if (a >= (BASE << 10)) a -= (BASE << 10); \
- if (a >= (BASE << 9)) a -= (BASE << 9); \
- if (a >= (BASE << 8)) a -= (BASE << 8); \
- if (a >= (BASE << 7)) a -= (BASE << 7); \
- if (a >= (BASE << 6)) a -= (BASE << 6); \
- if (a >= (BASE << 5)) a -= (BASE << 5); \
- if (a >= (BASE << 4)) a -= (BASE << 4); \
- if (a >= (BASE << 3)) a -= (BASE << 3); \
- if (a >= (BASE << 2)) a -= (BASE << 2); \
- if (a >= (BASE << 1)) a -= (BASE << 1); \
+ unsigned long tmp = a >> 16; \
+ a &= 0xffffUL; \
+ a += (tmp << 4) - tmp; \
+ } while (0)
+# define MOD28(a) \
+ do { \
+ CHOP(a); \
if (a >= BASE) a -= BASE; \
} while (0)
-# define MOD4(a) \
+# define MOD(a) \
do { \
- if (a >= (BASE << 4)) a -= (BASE << 4); \
- if (a >= (BASE << 3)) a -= (BASE << 3); \
- if (a >= (BASE << 2)) a -= (BASE << 2); \
- if (a >= (BASE << 1)) a -= (BASE << 1); \
+ CHOP(a); \
+ MOD28(a); \
+ } while (0)
+# define MOD63(a) \
+ do { /* this assumes a is not negative */ \
+ z_off64_t tmp = a >> 32; \
+ a &= 0xffffffffL; \
+ a += (tmp << 8) - (tmp << 5) + tmp; \
+ tmp = a >> 16; \
+ a &= 0xffffL; \
+ a += (tmp << 4) - tmp; \
+ tmp = a >> 16; \
+ a &= 0xffffL; \
+ a += (tmp << 4) - tmp; \
if (a >= BASE) a -= BASE; \
} while (0)
#else
# define MOD(a) a %= BASE
-# define MOD4(a) a %= BASE
+# define MOD28(a) a %= BASE
+# define MOD63(a) a %= BASE
#endif
/* ========================================================================= */
@@ -92,7 +97,7 @@
}
if (adler >= BASE)
adler -= BASE;
- MOD4(sum2); /* only added so many BASE's */
+ MOD28(sum2); /* only added so many BASE's */
return adler | (sum2 << 16);
}
@@ -137,8 +142,13 @@
unsigned long sum2;
unsigned rem;
+ /* for negative len, return invalid adler32 as a clue for debugging */
+ if (len2 < 0)
+ return 0xffffffffUL;
+
/* the derivation of this formula is left as an exercise for the reader */
- rem = (unsigned)(len2 % BASE);
+ MOD63(len2); /* assumes len2 >= 0 */
+ rem = (unsigned)len2;
sum1 = adler1 & 0xffff;
sum2 = rem * sum1;
MOD(sum2);
diff --git a/algorithm.txt b/algorithm.txt
deleted file mode 100644
index b022dde..0000000
--- a/algorithm.txt
+++ /dev/null
@@ -1,209 +0,0 @@
-1. Compression algorithm (deflate)
-
-The deflation algorithm used by gzip (also zip and zlib) is a variation of
-LZ77 (Lempel-Ziv 1977, see reference below). It finds duplicated strings in
-the input data. The second occurrence of a string is replaced by a
-pointer to the previous string, in the form of a pair (distance,
-length). Distances are limited to 32K bytes, and lengths are limited
-to 258 bytes. When a string does not occur anywhere in the previous
-32K bytes, it is emitted as a sequence of literal bytes. (In this
-description, `string' must be taken as an arbitrary sequence of bytes,
-and is not restricted to printable characters.)
-
-Literals or match lengths are compressed with one Huffman tree, and
-match distances are compressed with another tree. The trees are stored
-in a compact form at the start of each block. The blocks can have any
-size (except that the compressed data for one block must fit in
-available memory). A block is terminated when deflate() determines that
-it would be useful to start another block with fresh trees. (This is
-somewhat similar to the behavior of LZW-based _compress_.)
-
-Duplicated strings are found using a hash table. All input strings of
-length 3 are inserted in the hash table. A hash index is computed for
-the next 3 bytes. If the hash chain for this index is not empty, all
-strings in the chain are compared with the current input string, and
-the longest match is selected.
-
-The hash chains are searched starting with the most recent strings, to
-favor small distances and thus take advantage of the Huffman encoding.
-The hash chains are singly linked. There are no deletions from the
-hash chains, the algorithm simply discards matches that are too old.
-
-To avoid a worst-case situation, very long hash chains are arbitrarily
-truncated at a certain length, determined by a runtime option (level
-parameter of deflateInit). So deflate() does not always find the longest
-possible match but generally finds a match which is long enough.
-
-deflate() also defers the selection of matches with a lazy evaluation
-mechanism. After a match of length N has been found, deflate() searches for
-a longer match at the next input byte. If a longer match is found, the
-previous match is truncated to a length of one (thus producing a single
-literal byte) and the process of lazy evaluation begins again. Otherwise,
-the original match is kept, and the next match search is attempted only N
-steps later.
-
-The lazy match evaluation is also subject to a runtime parameter. If
-the current match is long enough, deflate() reduces the search for a longer
-match, thus speeding up the whole process. If compression ratio is more
-important than speed, deflate() attempts a complete second search even if
-the first match is already long enough.
-
-The lazy match evaluation is not performed for the fastest compression
-modes (level parameter 1 to 3). For these fast modes, new strings
-are inserted in the hash table only when no match was found, or
-when the match is not too long. This degrades the compression ratio
-but saves time since there are both fewer insertions and fewer searches.
-
-
-2. Decompression algorithm (inflate)
-
-2.1 Introduction
-
-The key question is how to represent a Huffman code (or any prefix code) so
-that you can decode fast. The most important characteristic is that shorter
-codes are much more common than longer codes, so pay attention to decoding the
-short codes fast, and let the long codes take longer to decode.
-
-inflate() sets up a first level table that covers some number of bits of
-input less than the length of longest code. It gets that many bits from the
-stream, and looks it up in the table. The table will tell if the next
-code is that many bits or less and how many, and if it is, it will tell
-the value, else it will point to the next level table for which inflate()
-grabs more bits and tries to decode a longer code.
-
-How many bits to make the first lookup is a tradeoff between the time it
-takes to decode and the time it takes to build the table. If building the
-table took no time (and if you had infinite memory), then there would only
-be a first level table to cover all the way to the longest code. However,
-building the table ends up taking a lot longer for more bits since short
-codes are replicated many times in such a table. What inflate() does is
-simply to make the number of bits in the first table a variable, and then
-to set that variable for the maximum speed.
-
-For inflate, which has 286 possible codes for the literal/length tree, the size
-of the first table is nine bits. Also the distance trees have 30 possible
-values, and the size of the first table is six bits. Note that for each of
-those cases, the table ended up one bit longer than the ``average'' code
-length, i.e. the code length of an approximately flat code which would be a
-little more than eight bits for 286 symbols and a little less than five bits
-for 30 symbols.
-
-
-2.2 More details on the inflate table lookup
-
-Ok, you want to know what this cleverly obfuscated inflate tree actually
-looks like. You are correct that it's not a Huffman tree. It is simply a
-lookup table for the first, let's say, nine bits of a Huffman symbol. The
-symbol could be as short as one bit or as long as 15 bits. If a particular
-symbol is shorter than nine bits, then that symbol's translation is duplicated
-in all those entries that start with that symbol's bits. For example, if the
-symbol is four bits, then it's duplicated 32 times in a nine-bit table. If a
-symbol is nine bits long, it appears in the table once.
-
-If the symbol is longer than nine bits, then that entry in the table points
-to another similar table for the remaining bits. Again, there are duplicated
-entries as needed. The idea is that most of the time the symbol will be short
-and there will only be one table look up. (That's whole idea behind data
-compression in the first place.) For the less frequent long symbols, there
-will be two lookups. If you had a compression method with really long
-symbols, you could have as many levels of lookups as is efficient. For
-inflate, two is enough.
-
-So a table entry either points to another table (in which case nine bits in
-the above example are gobbled), or it contains the translation for the symbol
-and the number of bits to gobble. Then you start again with the next
-ungobbled bit.
-
-You may wonder: why not just have one lookup table for how ever many bits the
-longest symbol is? The reason is that if you do that, you end up spending
-more time filling in duplicate symbol entries than you do actually decoding.
-At least for deflate's output that generates new trees every several 10's of
-kbytes. You can imagine that filling in a 2^15 entry table for a 15-bit code
-would take too long if you're only decoding several thousand symbols. At the
-other extreme, you could make a new table for every bit in the code. In fact,
-that's essentially a Huffman tree. But then you spend two much time
-traversing the tree while decoding, even for short symbols.
-
-So the number of bits for the first lookup table is a trade of the time to
-fill out the table vs. the time spent looking at the second level and above of
-the table.
-
-Here is an example, scaled down:
-
-The code being decoded, with 10 symbols, from 1 to 6 bits long:
-
-A: 0
-B: 10
-C: 1100
-D: 11010
-E: 11011
-F: 11100
-G: 11101
-H: 11110
-I: 111110
-J: 111111
-
-Let's make the first table three bits long (eight entries):
-
-000: A,1
-001: A,1
-010: A,1
-011: A,1
-100: B,2
-101: B,2
-110: -> table X (gobble 3 bits)
-111: -> table Y (gobble 3 bits)
-
-Each entry is what the bits decode as and how many bits that is, i.e. how
-many bits to gobble. Or the entry points to another table, with the number of
-bits to gobble implicit in the size of the table.
-
-Table X is two bits long since the longest code starting with 110 is five bits
-long:
-
-00: C,1
-01: C,1
-10: D,2
-11: E,2
-
-Table Y is three bits long since the longest code starting with 111 is six
-bits long:
-
-000: F,2
-001: F,2
-010: G,2
-011: G,2
-100: H,2
-101: H,2
-110: I,3
-111: J,3
-
-So what we have here are three tables with a total of 20 entries that had to
-be constructed. That's compared to 64 entries for a single table. Or
-compared to 16 entries for a Huffman tree (six two entry tables and one four
-entry table). Assuming that the code ideally represents the probability of
-the symbols, it takes on the average 1.25 lookups per symbol. That's compared
-to one lookup for the single table, or 1.66 lookups per symbol for the
-Huffman tree.
-
-There, I think that gives you a picture of what's going on. For inflate, the
-meaning of a particular symbol is often more than just a letter. It can be a
-byte (a "literal"), or it can be either a length or a distance which
-indicates a base value and a number of bits to fetch after the code that is
-added to the base value. Or it might be the special end-of-block code. The
-data structures created in inftrees.c try to encode all that information
-compactly in the tables.
-
-
-Jean-loup Gailly Mark Adler
-jloup@gzip.org madler@alumni.caltech.edu
-
-
-References:
-
-[LZ77] Ziv J., Lempel A., ``A Universal Algorithm for Sequential Data
-Compression,'' IEEE Transactions on Information Theory, Vol. 23, No. 3,
-pp. 337-343.
-
-``DEFLATE Compressed Data Format Specification'' available in
-http://www.ietf.org/rfc/rfc1951.txt
diff --git a/as400/bndsrc b/as400/bndsrc
index 9cf94bb..d048dbb 100644
--- a/as400/bndsrc
+++ b/as400/bndsrc
@@ -129,4 +129,78 @@
EXPORT SYMBOL("zlibCompileFlags")
+/*@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@*/
+/* Version 1.2.5 additional entry points. */
+/*@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@*/
+
+/********************************************************************/
+/* *MODULE ADLER32 ZLIB 01/02/01 00:15:09 */
+/********************************************************************/
+
+ EXPORT SYMBOL("adler32_combine")
+ EXPORT SYMBOL("adler32_combine64")
+
+/********************************************************************/
+/* *MODULE CRC32 ZLIB 01/02/01 00:15:09 */
+/********************************************************************/
+
+ EXPORT SYMBOL("crc32_combine")
+ EXPORT SYMBOL("crc32_combine64")
+
+/********************************************************************/
+/* *MODULE GZLIB ZLIB 01/02/01 00:15:09 */
+/********************************************************************/
+
+ EXPORT SYMBOL("gzbuffer")
+ EXPORT SYMBOL("gzoffset")
+ EXPORT SYMBOL("gzoffset64")
+ EXPORT SYMBOL("gzopen64")
+ EXPORT SYMBOL("gzseek64")
+ EXPORT SYMBOL("gztell64")
+
+/********************************************************************/
+/* *MODULE GZREAD ZLIB 01/02/01 00:15:09 */
+/********************************************************************/
+
+ EXPORT SYMBOL("gzclose_r")
+
+/********************************************************************/
+/* *MODULE GZWRITE ZLIB 01/02/01 00:15:09 */
+/********************************************************************/
+
+ EXPORT SYMBOL("gzclose_w")
+
+/********************************************************************/
+/* *MODULE INFLATE ZLIB 01/02/01 00:15:09 */
+/********************************************************************/
+
+ EXPORT SYMBOL("inflateMark")
+ EXPORT SYMBOL("inflatePrime")
+ EXPORT SYMBOL("inflateReset2")
+ EXPORT SYMBOL("inflateUndermine")
+
+/*@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@*/
+/* Version 1.2.6 additional entry points. */
+/*@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@*/
+
+/********************************************************************/
+/* *MODULE DEFLATE ZLIB 01/02/01 00:15:09 */
+/********************************************************************/
+
+ EXPORT SYMBOL("deflateResetKeep")
+ EXPORT SYMBOL("deflatePending")
+
+/********************************************************************/
+/* *MODULE GZWRITE ZLIB 01/02/01 00:15:09 */
+/********************************************************************/
+
+ EXPORT SYMBOL("gzgetc_")
+ EXPORT SYMBOL("gzflags")
+
+/********************************************************************/
+/* *MODULE INFLATE ZLIB 01/02/01 00:15:09 */
+/********************************************************************/
+
+ EXPORT SYMBOL("inflateResetKeep")
+
ENDPGMEXP
diff --git a/as400/compile.clp b/as400/compile.clp
index 8554951..ed96ad4 100644
--- a/as400/compile.clp
+++ b/as400/compile.clp
@@ -26,85 +26,70 @@
DCL VAR(&CFLAGS) TYPE(*CHAR) +
VALUE('OPTIMIZE(40)') /* Compile options. */
+ DCL VAR(&TGTRLS) TYPE(*CHAR) +
+ VALUE('V5R3M0') /* Target release. */
+
/* Working storage. */
DCL VAR(&CMDLEN) TYPE(*DEC) LEN(15 5) VALUE(300) /* Command length. */
DCL VAR(&CMD) TYPE(*CHAR) LEN(512)
+ DCL VAR(&FIXDCMD) TYPE(*CHAR) LEN(512)
/* Compile sources into modules. */
- CHGVAR VAR(&CMD) VALUE('CRTCMOD MODULE(' *TCAT &MODLIB *TCAT +
- '/ADLER32) SRCFILE(' *TCAT +
- &SRCLIB *TCAT '/' *TCAT &SRCFILE *TCAT +
- ') SYSIFCOPT(*IFSIO)' *BCAT &CFLAGS)
+ CHGVAR VAR(&FIXDCMD) VALUE('CRTCMOD' *BCAT &CFLAGS *BCAT +
+ 'SYSIFCOPT(*IFS64IO)' *BCAT +
+ 'DEFINE(''_LARGEFILE64_SOURCE''' *BCAT +
+ '''_LFS64_LARGEFILE=1'') TGTRLS(' *TCAT &TGTRLS *TCAT +
+ ') SRCFILE(' *TCAT &SRCLIB *TCAT '/' *TCAT +
+ &SRCFILE *TCAT ') MODULE(' *TCAT &MODLIB *TCAT '/')
+
+
+ CHGVAR VAR(&CMD) VALUE(&FIXDCMD *TCAT 'ADLER32)')
CALL PGM(QCMDEXC) PARM(&CMD &CMDLEN)
- CHGVAR VAR(&CMD) VALUE('CRTCMOD MODULE(' *TCAT &MODLIB *TCAT +
- '/COMPRESS) SRCFILE(' *TCAT +
- &SRCLIB *TCAT '/' *TCAT &SRCFILE *TCAT +
- ') SYSIFCOPT(*IFSIO)' *BCAT &CFLAGS)
+ CHGVAR VAR(&CMD) VALUE(&FIXDCMD *TCAT 'COMPRESS)')
CALL PGM(QCMDEXC) PARM(&CMD &CMDLEN)
- CHGVAR VAR(&CMD) VALUE('CRTCMOD MODULE(' *TCAT &MODLIB *TCAT +
- '/CRC32) SRCFILE(' *TCAT +
- &SRCLIB *TCAT '/' *TCAT &SRCFILE *TCAT +
- ') SYSIFCOPT(*IFSIO)' *BCAT &CFLAGS)
+ CHGVAR VAR(&CMD) VALUE(&FIXDCMD *TCAT 'CRC32)')
CALL PGM(QCMDEXC) PARM(&CMD &CMDLEN)
- CHGVAR VAR(&CMD) VALUE('CRTCMOD MODULE(' *TCAT &MODLIB *TCAT +
- '/DEFLATE) SRCFILE(' *TCAT +
- &SRCLIB *TCAT '/' *TCAT &SRCFILE *TCAT +
- ') SYSIFCOPT(*IFSIO)' *BCAT &CFLAGS)
+ CHGVAR VAR(&CMD) VALUE(&FIXDCMD *TCAT 'DEFLATE)')
CALL PGM(QCMDEXC) PARM(&CMD &CMDLEN)
- CHGVAR VAR(&CMD) VALUE('CRTCMOD MODULE(' *TCAT &MODLIB *TCAT +
- '/GZIO) SRCFILE(' *TCAT +
- &SRCLIB *TCAT '/' *TCAT &SRCFILE *TCAT +
- ') SYSIFCOPT(*IFSIO)' *BCAT &CFLAGS)
+ CHGVAR VAR(&CMD) VALUE(&FIXDCMD *TCAT 'GZCLOSE)')
CALL PGM(QCMDEXC) PARM(&CMD &CMDLEN)
- CHGVAR VAR(&CMD) VALUE('CRTCMOD MODULE(' *TCAT &MODLIB *TCAT +
- '/INFBACK) SRCFILE(' *TCAT +
- &SRCLIB *TCAT '/' *TCAT &SRCFILE *TCAT +
- ') SYSIFCOPT(*IFSIO)' *BCAT &CFLAGS)
+ CHGVAR VAR(&CMD) VALUE(&FIXDCMD *TCAT 'GZLIB)')
CALL PGM(QCMDEXC) PARM(&CMD &CMDLEN)
- CHGVAR VAR(&CMD) VALUE('CRTCMOD MODULE(' *TCAT &MODLIB *TCAT +
- '/INFFAST) SRCFILE(' *TCAT +
- &SRCLIB *TCAT '/' *TCAT &SRCFILE *TCAT +
- ') SYSIFCOPT(*IFSIO)' *BCAT &CFLAGS)
+ CHGVAR VAR(&CMD) VALUE(&FIXDCMD *TCAT 'GZREAD)')
CALL PGM(QCMDEXC) PARM(&CMD &CMDLEN)
- CHGVAR VAR(&CMD) VALUE('CRTCMOD MODULE(' *TCAT &MODLIB *TCAT +
- '/INFLATE) SRCFILE(' *TCAT +
- &SRCLIB *TCAT '/' *TCAT &SRCFILE *TCAT +
- ') SYSIFCOPT(*IFSIO)' *BCAT &CFLAGS)
+ CHGVAR VAR(&CMD) VALUE(&FIXDCMD *TCAT 'GZWRITE)')
CALL PGM(QCMDEXC) PARM(&CMD &CMDLEN)
- CHGVAR VAR(&CMD) VALUE('CRTCMOD MODULE(' *TCAT &MODLIB *TCAT +
- '/INFTREES) SRCFILE(' *TCAT +
- &SRCLIB *TCAT '/' *TCAT &SRCFILE *TCAT +
- ') SYSIFCOPT(*IFSIO)' *BCAT &CFLAGS)
+ CHGVAR VAR(&CMD) VALUE(&FIXDCMD *TCAT 'INFBACK)')
CALL PGM(QCMDEXC) PARM(&CMD &CMDLEN)
- CHGVAR VAR(&CMD) VALUE('CRTCMOD MODULE(' *TCAT &MODLIB *TCAT +
- '/TREES) SRCFILE(' *TCAT +
- &SRCLIB *TCAT '/' *TCAT &SRCFILE *TCAT +
- ') SYSIFCOPT(*IFSIO)' *BCAT &CFLAGS)
+ CHGVAR VAR(&CMD) VALUE(&FIXDCMD *TCAT 'INFFAST)')
CALL PGM(QCMDEXC) PARM(&CMD &CMDLEN)
- CHGVAR VAR(&CMD) VALUE('CRTCMOD MODULE(' *TCAT &MODLIB *TCAT +
- '/UNCOMPR) SRCFILE(' *TCAT +
- &SRCLIB *TCAT '/' *TCAT &SRCFILE *TCAT +
- ') SYSIFCOPT(*IFSIO)' *BCAT &CFLAGS)
+ CHGVAR VAR(&CMD) VALUE(&FIXDCMD *TCAT 'INFLATE)')
CALL PGM(QCMDEXC) PARM(&CMD &CMDLEN)
- CHGVAR VAR(&CMD) VALUE('CRTCMOD MODULE(' *TCAT &MODLIB *TCAT +
- '/ZUTIL) SRCFILE(' *TCAT +
- &SRCLIB *TCAT '/' *TCAT &SRCFILE *TCAT +
- ') SYSIFCOPT(*IFSIO)' *BCAT &CFLAGS)
+ CHGVAR VAR(&CMD) VALUE(&FIXDCMD *TCAT 'INFTREES)')
+ CALL PGM(QCMDEXC) PARM(&CMD &CMDLEN)
+
+ CHGVAR VAR(&CMD) VALUE(&FIXDCMD *TCAT 'TREES)')
+ CALL PGM(QCMDEXC) PARM(&CMD &CMDLEN)
+
+ CHGVAR VAR(&CMD) VALUE(&FIXDCMD *TCAT 'UNCOMPR)')
+ CALL PGM(QCMDEXC) PARM(&CMD &CMDLEN)
+
+ CHGVAR VAR(&CMD) VALUE(&FIXDCMD *TCAT 'ZUTIL)')
CALL PGM(QCMDEXC) PARM(&CMD &CMDLEN)
@@ -113,11 +98,13 @@
CRTSRVPGM SRVPGM(&SRVLIB/ZLIB) +
MODULE(&MODLIB/ADLER32 &MODLIB/COMPRESS +
&MODLIB/CRC32 &MODLIB/DEFLATE +
- &MODLIB/GZIO &MODLIB/INFBACK +
- &MODLIB/INFFAST &MODLIB/INFLATE +
- &MODLIB/INFTREES &MODLIB/TREES +
- &MODLIB/UNCOMPR &MODLIB/ZUTIL) +
- SRCFILE(&SRCLIB/&CTLFILE) SRCMBR(BNDSRC) +
- TEXT('ZLIB 1.2.3') TGTRLS(V4R4M0)
+ &MODLIB/GZCLOSE &MODLIB/GZLIB +
+ &MODLIB/GZREAD &MODLIB/GZWRITE +
+ &MODLIB/INFBACK &MODLIB/INFFAST +
+ &MODLIB/INFLATE &MODLIB/INFTREES +
+ &MODLIB/TREES &MODLIB/UNCOMPR +
+ &MODLIB/ZUTIL) +
+ SRCFILE(&SRCLIB/&CTLFILE) SRCMBR(BNDSRC) +
+ TEXT('ZLIB 1.2.6') TGTRLS(&TGTRLS)
ENDPGM
diff --git a/as400/readme.txt b/as400/readme.txt
index beae13f..397fe99 100644
--- a/as400/readme.txt
+++ b/as400/readme.txt
@@ -1,4 +1,4 @@
- ZLIB version 1.2.3 for AS400 installation instructions
+ ZLIB version 1.2.6 for AS400 installation instructions
I) From an AS400 *SAVF file:
@@ -8,7 +8,7 @@
_ Create the ZLIB AS400 library:
- CRTLIB LIB(ZLIB) TYPE(PROD) TEXT('ZLIB compression API library')
+ CRTLIB LIB(ZLIB) TYPE(*PROD) TEXT('ZLIB compression API library')
_ Create a work save file, for example:
@@ -52,7 +52,7 @@
1) On the AS400, create the source library:
- CRTLIB LIB(ZLIB) TYPE(PROD) TEXT('ZLIB compression API library')
+ CRTLIB LIB(ZLIB) TYPE(*PROD) TEXT('ZLIB compression API library')
2) Create the source files:
@@ -70,7 +70,10 @@
compress.c COMPRESS C ZLIB - Compress a memory buffer
crc32.c CRC32 C ZLIB - Compute the CRC-32 of a data stream
deflate.c DEFLATE C ZLIB - Compress data using the deflation algorithm
- gzio.c GZIO C ZLIB - IO on .gz files
+ gzclose.c GZCLOSE C ZLIB - Close .gz files
+ gzlib.c GZLIB C ZLIB - Miscellaneous .gz files IO support
+ gzread.c GZREAD C ZLIB - Read .gz files
+ gzwrite.c GZWRITE C ZLIB - Write .gz files
infback.c INFBACK C ZLIB - Inflate using a callback interface
inffast.c INFFAST C ZLIB - Fast proc. literals & length/distance pairs
inflate.c INFLATE C ZLIB - Interface to inflate modules
@@ -81,6 +84,7 @@
H Original ZLIB C and ILE/RPG include files
crc32.h CRC32 C ZLIB - CRC32 tables
deflate.h DEFLATE C ZLIB - Internal compression state
+ gzguts.h GZGUTS C ZLIB - Definitions for the gzclose module
inffast.h INFFAST C ZLIB - Header to use inffast.c
inffixed.h INFFIXED C ZLIB - Table for decoding fixed codes
inflate.h INFLATE C ZLIB - Internal inflate state definitions
@@ -108,4 +112,4 @@
implementation does not handle conversion from/to ASCII, so
text data code conversions must be done explicitely.
- Always open zipped files in binary mode.
+ Mainly for the reason above, always open zipped files in binary mode.
diff --git a/as400/zlib.inc b/as400/zlib.inc
index 7bbfb7e..5ce905f 100644
--- a/as400/zlib.inc
+++ b/as400/zlib.inc
@@ -1,7 +1,7 @@
* ZLIB.INC - Interface to the general purpose compression library
*
* ILE RPG400 version by Patrick Monnerat, DATASPHERE.
- * Version 1.2.3
+ * Version 1.2.6
*
*
* WARNING:
@@ -22,16 +22,25 @@
*
* Versioning information.
*
- D ZLIB_VERSION C '1.2.3'
- D ZLIB_VERNUM C X'1230'
+ D ZLIB_VERSION C '1.2.6'
+ D ZLIB_VERNUM C X'1260'
+ D ZLIB_VER_MAJOR C 1
+ D ZLIB_VER_MINOR C 2
+ D ZLIB_VER_REVISION...
+ D C 6
+ D ZLIB_VER_SUBREVISION...
+ D C 0
*
* Other equates.
*
D Z_NO_FLUSH C 0
+ D Z_PARTIAL_FLUSH...
+ D C 1
D Z_SYNC_FLUSH C 2
D Z_FULL_FLUSH C 3
D Z_FINISH C 4
D Z_BLOCK C 5
+ D Z_TREES C 6
*
D Z_OK C 0
D Z_STREAM_END C 1
@@ -72,6 +81,7 @@
D z_streamp S * Stream struct ptr
D gzFile S * File pointer
D z_off_t S 10i 0 Stream offsets
+ D z_off64_t S 20i 0 Stream offsets
*
**************************************************************************
* Structures
@@ -101,15 +111,15 @@
**************************************************************************
*
D compress PR 10I 0 extproc('compress')
- D dest 32767 options(*varsize) Destination buffer
+ D dest 65535 options(*varsize) Destination buffer
D destLen 10U 0 Destination length
- D source 32767 const options(*varsize) Source buffer
+ D source 65535 const options(*varsize) Source buffer
D sourceLen 10u 0 value Source length
*
D compress2 PR 10I 0 extproc('compress2')
- D dest 32767 options(*varsize) Destination buffer
+ D dest 65535 options(*varsize) Destination buffer
D destLen 10U 0 Destination length
- D source 32767 const options(*varsize) Source buffer
+ D source 65535 const options(*varsize) Source buffer
D sourceLen 10U 0 value Source length
D level 10I 0 value Compression level
*
@@ -117,34 +127,50 @@
D sourceLen 10U 0 value
*
D uncompress PR 10I 0 extproc('uncompress')
- D dest 32767 options(*varsize) Destination buffer
+ D dest 65535 options(*varsize) Destination buffer
D destLen 10U 0 Destination length
- D source 32767 const options(*varsize) Source buffer
+ D source 65535 const options(*varsize) Source buffer
D sourceLen 10U 0 value Source length
*
+ /if not defined(LARGE_FILES)
D gzopen PR extproc('gzopen')
D like(gzFile)
D path * value options(*string) File pathname
D mode * value options(*string) Open mode
+ /else
+ D gzopen PR extproc('gzopen64')
+ D like(gzFile)
+ D path * value options(*string) File pathname
+ D mode * value options(*string) Open mode
+ *
+ D gzopen64 PR extproc('gzopen64')
+ D like(gzFile)
+ D path * value options(*string) File pathname
+ D mode * value options(*string) Open mode
+ /endif
*
D gzdopen PR extproc('gzdopen')
D like(gzFile)
- D fd 10i 0 value File descriptor
+ D fd 10I 0 value File descriptor
D mode * value options(*string) Open mode
*
+ D gzbuffer PR 10I 0 extproc('gzbuffer')
+ D file value like(gzFile) File pointer
+ D size 10U 0 value
+ *
D gzsetparams PR 10I 0 extproc('gzsetparams')
D file value like(gzFile) File pointer
D level 10I 0 value
- D strategy 10i 0 value
+ D strategy 10I 0 value
*
D gzread PR 10I 0 extproc('gzread')
D file value like(gzFile) File pointer
- D buf 32767 options(*varsize) Buffer
+ D buf 65535 options(*varsize) Buffer
D len 10u 0 value Buffer length
*
D gzwrite PR 10I 0 extproc('gzwrite')
D file value like(gzFile) File pointer
- D buf 32767 const options(*varsize) Buffer
+ D buf 65535 const options(*varsize) Buffer
D len 10u 0 value Buffer length
*
D gzputs PR 10I 0 extproc('gzputs')
@@ -153,29 +179,87 @@
*
D gzgets PR * extproc('gzgets')
D file value like(gzFile) File pointer
- D buf 32767 options(*varsize) Read buffer
+ D buf 65535 options(*varsize) Read buffer
D len 10i 0 value Buffer length
*
+ D gzputc PR 10i 0 extproc('gzputc')
+ D file value like(gzFile) File pointer
+ D c 10I 0 value Character to write
+ *
+ D gzgetc PR 10i 0 extproc('gzgetc')
+ D file value like(gzFile) File pointer
+ *
+ D gzgetc_ PR 10i 0 extproc('gzgetc_')
+ D file value like(gzFile) File pointer
+ *
+ D gzungetc PR 10i 0 extproc('gzungetc')
+ D c 10I 0 value Character to push
+ D file value like(gzFile) File pointer
+ *
D gzflush PR 10i 0 extproc('gzflush')
D file value like(gzFile) File pointer
D flush 10I 0 value Type of flush
*
+ /if not defined(LARGE_FILES)
D gzseek PR extproc('gzseek')
D like(z_off_t)
D file value like(gzFile) File pointer
D offset value like(z_off_t) Offset
D whence 10i 0 value Origin
+ /else
+ D gzseek PR extproc('gzseek64')
+ D like(z_off_t)
+ D file value like(gzFile) File pointer
+ D offset value like(z_off_t) Offset
+ D whence 10i 0 value Origin
+ *
+ D gzseek64 PR extproc('gzseek64')
+ D like(z_off64_t)
+ D file value like(gzFile) File pointer
+ D offset value like(z_off64_t) Offset
+ D whence 10i 0 value Origin
+ /endif
*
D gzrewind PR 10i 0 extproc('gzrewind')
D file value like(gzFile) File pointer
*
+ /if not defined(LARGE_FILES)
D gztell PR extproc('gztell')
D like(z_off_t)
D file value like(gzFile) File pointer
+ /else
+ D gztell PR extproc('gztell64')
+ D like(z_off_t)
+ D file value like(gzFile) File pointer
+ *
+ D gztell64 PR extproc('gztell64')
+ D like(z_off64_t)
+ D file value like(gzFile) File pointer
+ /endif
+ *
+ /if not defined(LARGE_FILES)
+ D gzoffset PR extproc('gzoffset')
+ D like(z_off_t)
+ D file value like(gzFile) File pointer
+ /else
+ D gzoffset PR extproc('gzoffset64')
+ D like(z_off_t)
+ D file value like(gzFile) File pointer
+ *
+ D gzoffset64 PR extproc('gzoffset64')
+ D like(z_off64_t)
+ D file value like(gzFile) File pointer
+ /endif
*
D gzeof PR 10i 0 extproc('gzeof')
D file value like(gzFile) File pointer
*
+ D gzclose_r PR 10i 0 extproc('gzclose_r')
+ D file value like(gzFile) File pointer
+ *
+ D gzclose_w PR 10i 0 extproc('gzclose_w')
+ D file value like(gzFile) File pointer
+ *
D gzclose PR 10i 0 extproc('gzclose')
D file value like(gzFile) File pointer
*
@@ -234,7 +318,7 @@
D deflateSetDictionary...
D PR 10I 0 extproc('deflateSetDictionary') Init. dictionary
D strm like(z_stream) Compression stream
- D dictionary 32767 const options(*varsize) Dictionary bytes
+ D dictionary 65535 const options(*varsize) Dictionary bytes
D dictLength 10U 0 value Dictionary length
*
D deflateCopy PR 10I 0 extproc('deflateCopy') Compress strm 2 strm
@@ -253,9 +337,14 @@
D strm like(z_stream) Compression stream
D sourcelen 10U 0 value Compression level
*
+ D deflatePending PR 10I 0 extproc('deflatePending') Change level & strat
+ D strm like(z_stream) Compression stream
+ D pending 10U 0 Pending bytes
+ D bits 10I 0 Pending bits
+ *
D deflatePrime PR 10I 0 extproc('deflatePrime') Change level & strat
D strm like(z_stream) Compression stream
- D bits 10I 0 value Number of bits to insert
+ D bits 10I 0 value # of bits to insert
D value 10I 0 value Bits to insert
*
D inflateInit2 PR 10I 0 extproc('inflateInit2_') Init. expansion
@@ -267,7 +356,7 @@
D inflateSetDictionary...
D PR 10I 0 extproc('inflateSetDictionary') Init. dictionary
D strm like(z_stream) Expansion stream
- D dictionary 32767 const options(*varsize) Dictionary bytes
+ D dictionary 65535 const options(*varsize) Dictionary bytes
D dictLength 10U 0 value Dictionary length
*
D inflateSync PR 10I 0 extproc('inflateSync') Sync. expansion
@@ -280,11 +369,23 @@
D inflateReset PR 10I 0 extproc('inflateReset') End and init. stream
D strm like(z_stream) Expansion stream
*
+ D inflateReset2 PR 10I 0 extproc('inflateReset2') End and init. stream
+ D strm like(z_stream) Expansion stream
+ D windowBits 10I 0 value Log2(buffer size)
+ *
+ D inflatePrime PR 10I 0 extproc('inflatePrime') Insert bits
+ D strm like(z_stream) Expansion stream
+ D bits 10I 0 value Bit count
+ D value 10I 0 value Bits to insert
+ *
+ D inflateMark PR 10I 0 extproc('inflateMark') Get inflate info
+ D strm like(z_stream) Expansion stream
+ *
D inflateBackInit...
D PR 10I 0 extproc('inflateBackInit_')
D strm like(z_stream) Expansion stream
D windowBits 10I 0 value Log2(buffer size)
- D window 32767 options(*varsize) Buffer
+ D window 65535 options(*varsize) Buffer
D version * value options(*string) Version string
D stream_size 10i 0 value Stream struct. size
*
@@ -307,12 +408,12 @@
*
D adler32 PR 10U 0 extproc('adler32') New checksum
D adler 10U 0 value Old checksum
- D buf 32767 const options(*varsize) Bytes to accumulate
+ D buf 65535 const options(*varsize) Bytes to accumulate
D len 10U 0 value Buffer length
*
D crc32 PR 10U 0 extproc('crc32') New checksum
D crc 10U 0 value Old checksum
- D buf 32767 const options(*varsize) Bytes to accumulate
+ D buf 65535 const options(*varsize) Bytes to accumulate
D len 10U 0 value Buffer length
*
**************************************************************************
@@ -328,4 +429,19 @@
*
D get_crc_table PR * extproc('get_crc_table') Ptr to ulongs
*
+ D inflateUndermine...
+ D PR 10I 0 extproc('inflateUndermine')
+ D strm like(z_stream) Expansion stream
+ D arg 10I 0 value Error code
+ *
+ D inflateResetKeep...
+ D PR 10I 0 extproc('inflateResetKeep') End and init. stream
+ D strm like(z_stream) Expansion stream
+ *
+ D deflateResetKeep...
+ D PR 10I 0 extproc('deflateResetKeep') End and init. stream
+ D strm like(z_stream) Expansion stream
+ *
+ D gzflags PR 10U 0 extproc('gzflags')
+ *
/endif
diff --git a/configure b/configure
index bd9edd2..780317c 100755
--- a/configure
+++ b/configure
@@ -13,39 +13,43 @@
# If you have problems, try without defining CC and CFLAGS before reporting
# an error.
+echo -------------------- >> configure.log
+echo $0 $* >> configure.log
+date >> configure.log
+
if [ -n "${CHOST}" ]; then
- uname="$(echo "${CHOST}" | sed -e 's/^[^-]*-\([^-]*\)$/\1/' -e 's/^[^-]*-[^-]*-\([^-]*\)$/\1/' -e 's/^[^-]*-[^-]*-\([^-]*\)-.*$/\1/')"
+ uname="`echo "${CHOST}" | sed -e 's/^[^-]*-\([^-]*\)$/\1/' -e 's/^[^-]*-[^-]*-\([^-]*\)$/\1/' -e 's/^[^-]*-[^-]*-\([^-]*\)-.*$/\1/'`"
CROSS_PREFIX="${CHOST}-"
fi
STATICLIB=libz.a
-LDFLAGS="${LDFLAGS} -L. ${STATICLIB}"
VER=`sed -n -e '/VERSION "/s/.*"\(.*\)".*/\1/p' < zlib.h`
VER3=`sed -n -e '/VERSION "/s/.*"\([0-9]*\\.[0-9]*\\.[0-9]*\).*/\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`
if "${CROSS_PREFIX}ar" --version >/dev/null 2>/dev/null || test $? -lt 126; then
AR=${AR-"${CROSS_PREFIX}ar"}
- test -n "${CROSS_PREFIX}" && echo Using ${AR}
+ test -n "${CROSS_PREFIX}" && echo Using ${AR} | tee -a configure.log
else
AR=${AR-"ar"}
- test -n "${CROSS_PREFIX}" && echo Using ${AR}
+ test -n "${CROSS_PREFIX}" && echo Using ${AR} | tee -a configure.log
fi
-AR_RC="${AR} rc"
+ARFLAGS=${ARFLAGS-"rc"}
if "${CROSS_PREFIX}ranlib" --version >/dev/null 2>/dev/null || test $? -lt 126; then
RANLIB=${RANLIB-"${CROSS_PREFIX}ranlib"}
- test -n "${CROSS_PREFIX}" && echo Using ${RANLIB}
+ test -n "${CROSS_PREFIX}" && echo Using ${RANLIB} | tee -a configure.log
else
RANLIB=${RANLIB-"ranlib"}
fi
if "${CROSS_PREFIX}nm" --version >/dev/null 2>/dev/null || test $? -lt 126; then
NM=${NM-"${CROSS_PREFIX}nm"}
- test -n "${CROSS_PREFIX}" && echo Using ${NM}
+ test -n "${CROSS_PREFIX}" && echo Using ${NM} | tee -a configure.log
else
NM=${NM-"nm"}
fi
LDCONFIG=${LDCONFIG-"ldconfig"}
LDSHAREDLIBC="${LDSHAREDLIBC--lc}"
+ARCHS=
prefix=${prefix-/usr/local}
exec_prefix=${exec_prefix-'${prefix}'}
libdir=${libdir-'${exec_prefix}/lib'}
@@ -54,20 +58,24 @@
mandir=${mandir-'${prefix}/share/man'}
shared_ext='.so'
shared=1
+solo=0
+cover=0
zprefix=0
build64=0
gcc=0
old_cc="$CC"
old_cflags="$CFLAGS"
+OBJC='$(OBJZ) $(OBJG)'
+PIC_OBJC='$(PIC_OBJZ) $(PIC_OBJG)'
while test $# -ge 1
do
case "$1" in
-h* | --help)
- echo 'usage:'
- echo ' configure [--zprefix] [--prefix=PREFIX] [--eprefix=EXPREFIX]'
- echo ' [--static] [--64] [--libdir=LIBDIR] [--sharedlibdir=LIBDIR]'
- echo ' [--includedir=INCLUDEDIR]'
+ echo 'usage:' | tee -a configure.log
+ echo ' configure [--zprefix] [--prefix=PREFIX] [--eprefix=EXPREFIX]' | tee -a configure.log
+ echo ' [--static] [--64] [--libdir=LIBDIR] [--sharedlibdir=LIBDIR]' | tee -a configure.log
+ echo ' [--includedir=INCLUDEDIR] [--archs="-arch i386 -arch x86_64"]' | tee -a configure.log
exit 0 ;;
-p*=* | --prefix=*) prefix=`echo $1 | sed 's/.*=//'`; shift ;;
-e*=* | --eprefix=*) exec_prefix=`echo $1 | sed 's/.*=//'`; shift ;;
@@ -81,32 +89,78 @@
-i* | --includedir) includedir="$2"; shift; shift ;;
-s* | --shared | --enable-shared) shared=1; shift ;;
-t | --static) shared=0; shift ;;
+ --solo) solo=1; shift ;;
+ --cover) cover=1; shift ;;
-z* | --zprefix) zprefix=1; shift ;;
-6* | --64) build64=1; shift ;;
- --sysconfdir=*) echo "ignored option: --sysconfdir"; shift ;;
- --localstatedir=*) echo "ignored option: --localstatedir"; shift ;;
- *) echo "unknown option: $1"; echo "$0 --help for help"; exit 1 ;;
+ -a*=* | --archs=*) ARCHS=`echo $1 | sed 's/.*=//'`; shift ;;
+ --sysconfdir=*) echo "ignored option: --sysconfdir" | tee -a configure.log; shift ;;
+ --localstatedir=*) echo "ignored option: --localstatedir" | tee -a configure.log; shift ;;
+ *) echo "unknown option: $1"; echo "$0 --help for help" | tee -a configure.log; exit 1 ;;
esac
done
test=ztest$$
+
+show()
+{
+ case "$*" in
+ *$test.c*)
+ echo === $test.c === >> configure.log
+ cat $test.c >> configure.log
+ echo === >> configure.log;;
+ esac
+ echo $* >> configure.log
+}
+
+cat > $test.c <<EOF
+#error error
+EOF
+if ($CC -c $CFLAGS $test.c) 2>/dev/null; then
+ try()
+ {
+ show $*
+ test "`( $* ) 2>&1 | tee -a configure.log`" = ""
+ }
+ echo - using any output from compiler to indicate an error >> configure.log
+else
+ try()
+ {
+ show $*
+ ( $* ) >> configure.log 2>&1
+ ret=$?
+ if test $ret -ne 0; then
+ echo "(exit code "$ret")" >> configure.log
+ fi
+ return $ret
+ }
+fi
+
+echo >> configure.log
+
cat > $test.c <<EOF
extern int getchar();
int hello() {return getchar();}
EOF
-test -z "$CC" && echo Checking for ${CROSS_PREFIX}gcc...
+test -z "$CC" && echo Checking for ${CROSS_PREFIX}gcc... | tee -a configure.log
cc=${CC-${CROSS_PREFIX}gcc}
cflags=${CFLAGS-"-O3"}
# to force the asm version use: CFLAGS="-O3 -DASMV" ./configure
case "$cc" in
*gcc*) gcc=1 ;;
esac
+case `$cc -v 2>&1` in
+ *gcc*) gcc=1 ;;
+esac
-if test "$gcc" -eq 1 && ($cc -c $cflags $test.c) 2>/dev/null; then
+show $cc -c $cflags $test.c
+if test "$gcc" -eq 1 && ($cc -c $cflags $test.c) >> configure.log 2>&1; then
+ echo ... using gcc >> configure.log
CC="$cc"
+ CFLAGS="${CFLAGS--O3} ${ARCHS}"
SFLAGS="${CFLAGS--O3} -fPIC"
- CFLAGS="${CFLAGS--O3}"
+ LDFLAGS="${LDFLAGS} ${ARCHS}"
if test $build64 -eq 1; then
CFLAGS="${CFLAGS} -m64"
SFLAGS="${SFLAGS} -m64"
@@ -118,13 +172,17 @@
uname=`(uname -s || echo unknown) 2>/dev/null`
fi
case "$uname" in
- Linux* | linux* | GNU | GNU/* | *BSD | DragonFly) LDSHARED=${LDSHARED-"$cc -shared -Wl,-soname,libz.so.1,--version-script,zlib.map"} ;;
+ Linux* | linux* | GNU | GNU/* | solaris*)
+ LDSHARED=${LDSHARED-"$cc -shared -Wl,-soname,libz.so.1,--version-script,zlib.map"} ;;
+ *BSD | *bsd* | DragonFly)
+ LDSHARED=${LDSHARED-"$cc -shared -Wl,-soname,libz.so.1,--version-script,zlib.map"}
+ LDCONFIG="ldconfig -m" ;;
CYGWIN* | Cygwin* | cygwin* | OS/2*)
EXE='.exe' ;;
- MINGW*|mingw*)
+ MINGW* | mingw*)
# temporary bypass
rm -f $test.[co] $test $test$shared_ext
- echo "Please use win32/Makefile.gcc instead."
+ echo "Please use win32/Makefile.gcc instead." | tee -a configure.log
exit 1
LDSHARED=${LDSHARED-"$cc -shared"}
LDSHAREDLIBC=""
@@ -142,17 +200,21 @@
shared_ext='.sl'
SHAREDLIB='libz.sl' ;;
esac ;;
- Darwin*) shared_ext='.dylib'
+ Darwin* | darwin*)
+ shared_ext='.dylib'
SHAREDLIB=libz$shared_ext
SHAREDLIBV=libz.$VER$shared_ext
SHAREDLIBM=libz.$VER1$shared_ext
- LDSHARED=${LDSHARED-"$cc -dynamiclib -install_name $libdir/$SHAREDLIBM -compatibility_version $VER1 -current_version $VER3"} ;;
+ LDSHARED=${LDSHARED-"$cc -dynamiclib -install_name $libdir/$SHAREDLIBM -compatibility_version $VER1 -current_version $VER3"}
+ AR="libtool"
+ ARFLAGS="-o" ;;
*) LDSHARED=${LDSHARED-"$cc -shared"} ;;
esac
else
# find system name and corresponding cc options
CC=${CC-cc}
gcc=0
+ echo ... using $CC >> configure.log
if test -z "$uname"; then
uname=`(uname -sr || echo unknown) 2>/dev/null`
fi
@@ -183,11 +245,13 @@
CFLAGS=${CFLAGS-"-4 -O"}
LDSHARED=${LDSHARED-"cc"}
RANLIB=${RANLIB-"true"}
- AR_RC="cc -A" ;;
+ AR="cc"
+ ARFLAGS="-A" ;;
SCO_SV\ 3.2*) SFLAGS=${CFLAGS-"-O3 -dy -KPIC "}
CFLAGS=${CFLAGS-"-O3"}
LDSHARED=${LDSHARED-"cc -dy -KPIC -G"} ;;
- SunOS\ 5*) LDSHARED=${LDSHARED-"cc -G"}
+ SunOS\ 5* | solaris*)
+ LDSHARED=${LDSHARED-"cc -G"}
case `(uname -m || echo unknown) 2>/dev/null` in
i86*)
SFLAGS=${CFLAGS-"-xpentium -fast -KPIC -R."}
@@ -229,21 +293,19 @@
SHAREDLIBV=${SHAREDLIBV-"libz$shared_ext.$VER"}
SHAREDLIBM=${SHAREDLIBM-"libz$shared_ext.$VER1"}
+echo >> configure.log
+
if test $shared -eq 1; then
- echo Checking for shared library support...
+ echo Checking for shared library support... | tee -a configure.log
# we must test in two steps (cc then ld), required at least on SunOS 4.x
- if test "`($CC -w -c $SFLAGS $test.c) 2>&1`" = "" &&
- test "`($LDSHARED $SFLAGS -o $test$shared_ext $test.o) 2>&1`" = ""; then
- echo Building shared library $SHAREDLIBV with $CC.
+ if try $CC -w -c $SFLAGS $test.c &&
+ try $LDSHARED $SFLAGS -o $test$shared_ext $test.o; then
+ echo Building shared library $SHAREDLIBV with $CC. | tee -a configure.log
elif test -z "$old_cc" -a -z "$old_cflags"; then
- echo No shared library support.
+ echo No shared library support. | tee -a configure.log
shared=0;
else
- echo Tested $CC -w -c $SFLAGS $test.c
- $CC -w -c $SFLAGS $test.c
- echo Tested $LDSHARED $SFLAGS -o $test$shared_ext $test.o
- $LDSHARED $SFLAGS -o $test$shared_ext $test.o
- echo 'No shared library support; try without defining CC and CFLAGS'
+ echo 'No shared library support; try without defining CC and CFLAGS' | tee -a configure.log
shared=0;
fi
fi
@@ -254,25 +316,41 @@
SHAREDLIB=""
SHAREDLIBV=""
SHAREDLIBM=""
- echo Building static library $STATICLIB version $VER with $CC.
+ echo Building static library $STATICLIB version $VER with $CC. | tee -a configure.log
else
ALL="static shared"
TEST="all teststatic testshared"
fi
+CPP=${CPP-"$CC -E"}
+case $CFLAGS in
+ *ASMV*)
+ echo >> configure.log
+ show "$NM $test.o | grep _hello"
+ if test "`$NM $test.o | grep _hello | tee -a configure.log`" = ""; then
+ CPP="$CPP -DNO_UNDERLINE"
+ echo Checking for underline in external names... No. | tee -a configure.log
+ else
+ echo Checking for underline in external names... Yes. | tee -a configure.log
+ fi ;;
+esac
+
+echo >> configure.log
+
cat > $test.c <<EOF
#include <sys/types.h>
off64_t dummy = 0;
EOF
-if test "`($CC -c $CFLAGS -D_LARGEFILE64_SOURCE=1 $test.c) 2>&1`" = ""; then
+if try $CC -c $CFLAGS -D_LARGEFILE64_SOURCE=1 $test.c; then
CFLAGS="${CFLAGS} -D_LARGEFILE64_SOURCE=1"
SFLAGS="${SFLAGS} -D_LARGEFILE64_SOURCE=1"
ALL="${ALL} all64"
TEST="${TEST} test64"
- echo "Checking for off64_t... Yes."
- echo "Checking for fseeko... Yes."
+ echo "Checking for off64_t... Yes." | tee -a configure.log
+ echo "Checking for fseeko... Yes." | tee -a configure.log
else
- echo "Checking for off64_t... No."
+ echo "Checking for off64_t... No." | tee -a configure.log
+ echo >> configure.log
cat > $test.c <<EOF
#include <stdio.h>
int main(void) {
@@ -280,237 +358,256 @@
return 0;
}
EOF
- if test "`($CC $CFLAGS -o $test $test.c) 2>&1`" = ""; then
- echo "Checking for fseeko... Yes."
+ if try $CC $CFLAGS -o $test $test.c; then
+ echo "Checking for fseeko... Yes." | tee -a configure.log
else
CFLAGS="${CFLAGS} -DNO_FSEEKO"
SFLAGS="${SFLAGS} -DNO_FSEEKO"
- echo "Checking for fseeko... No."
+ echo "Checking for fseeko... No." | tee -a configure.log
fi
fi
cp -p zconf.h.in zconf.h
+echo >> configure.log
+
cat > $test.c <<EOF
#include <unistd.h>
int main() { return 0; }
EOF
-if test "`($CC -c $CFLAGS $test.c) 2>&1`" = ""; then
+if try $CC -c $CFLAGS $test.c; then
sed < zconf.h "/^#ifdef HAVE_UNISTD_H.* may be/s/def HAVE_UNISTD_H\(.*\) may be/ 1\1 was/" > zconf.temp.h
mv zconf.temp.h zconf.h
- echo "Checking for unistd.h... Yes."
+ echo "Checking for unistd.h... Yes." | tee -a configure.log
else
- echo "Checking for unistd.h... No."
+ echo "Checking for unistd.h... No." | tee -a configure.log
+fi
+
+echo >> configure.log
+
+cat > $test.c <<EOF
+#include <stdarg.h>
+int main() { return 0; }
+EOF
+if try $CC -c $CFLAGS $test.c; then
+ sed < zconf.h "/^#ifdef HAVE_STDARG_H.* may be/s/def HAVE_STDARG_H\(.*\) may be/ 1\1 was/" > zconf.temp.h
+ mv zconf.temp.h zconf.h
+ echo "Checking for stdarg.h... Yes." | tee -a configure.log
+else
+ echo "Checking for stdarg.h... No." | tee -a configure.log
fi
if test $zprefix -eq 1; then
sed < zconf.h "/#ifdef Z_PREFIX.* may be/s/def Z_PREFIX\(.*\) may be/ 1\1 was/" > zconf.temp.h
mv zconf.temp.h zconf.h
- echo "Using z_ prefix on all symbols."
+ echo >> configure.log
+ echo "Using z_ prefix on all symbols." | tee -a configure.log
fi
+if test $solo -eq 1; then
+ sed '/#define ZCONF_H/a\
+#define Z_SOLO
+
+' < zconf.h > zconf.temp.h
+ mv zconf.temp.h zconf.h
+OBJC='$(OBJZ)'
+PIC_OBJC='$(PIC_OBJZ)'
+fi
+
+if test $cover -eq 1; then
+ CFLAGS="${CFLAGS} -fprofile-arcs -ftest-coverage"
+fi
+
+echo >> configure.log
+
cat > $test.c <<EOF
#include <stdio.h>
#include <stdarg.h>
#include "zconf.h"
-
int main()
{
#ifndef STDC
choke me
#endif
-
return 0;
}
EOF
-if test "`($CC -c $CFLAGS $test.c) 2>&1`" = ""; then
- echo "Checking whether to use vs[n]printf() or s[n]printf()... using vs[n]printf()."
+if try $CC -c $CFLAGS $test.c; then
+ echo "Checking whether to use vs[n]printf() or s[n]printf()... using vs[n]printf()." | tee -a configure.log
+ echo >> configure.log
cat > $test.c <<EOF
#include <stdio.h>
#include <stdarg.h>
-
int mytest(const char *fmt, ...)
{
char buf[20];
va_list ap;
-
va_start(ap, fmt);
vsnprintf(buf, sizeof(buf), fmt, ap);
va_end(ap);
return 0;
}
-
int main()
{
return (mytest("Hello%d\n", 1));
}
EOF
+ if try $CC $CFLAGS -o $test $test.c; then
+ echo "Checking for vsnprintf() in stdio.h... Yes." | tee -a configure.log
- if test "`($CC $CFLAGS -o $test $test.c) 2>&1`" = ""; then
- echo "Checking for vsnprintf() in stdio.h... Yes."
-
+ echo >> configure.log
cat >$test.c <<EOF
#include <stdio.h>
#include <stdarg.h>
-
int mytest(const char *fmt, ...)
{
int n;
char buf[20];
va_list ap;
-
va_start(ap, fmt);
n = vsnprintf(buf, sizeof(buf), fmt, ap);
va_end(ap);
return n;
}
-
int main()
{
return (mytest("Hello%d\n", 1));
}
EOF
- if test "`($CC -c $CFLAGS $test.c) 2>&1`" = ""; then
- echo "Checking for return value of vsnprintf()... Yes."
+ if try $CC -c $CFLAGS $test.c; then
+ echo "Checking for return value of vsnprintf()... Yes." | tee -a configure.log
else
CFLAGS="$CFLAGS -DHAS_vsnprintf_void"
SFLAGS="$SFLAGS -DHAS_vsnprintf_void"
- echo "Checking for return value of vsnprintf()... No."
- echo " WARNING: apparently vsnprintf() does not return a value. zlib"
- echo " can build but will be open to possible string-format security"
- echo " vulnerabilities."
+ echo "Checking for return value of vsnprintf()... No." | tee -a configure.log
+ echo " WARNING: apparently vsnprintf() does not return a value. zlib" | tee -a configure.log
+ echo " can build but will be open to possible string-format security" | tee -a configure.log
+ echo " vulnerabilities." | tee -a configure.log
fi
else
CFLAGS="$CFLAGS -DNO_vsnprintf"
SFLAGS="$SFLAGS -DNO_vsnprintf"
- echo "Checking for vsnprintf() in stdio.h... No."
- echo " WARNING: vsnprintf() not found, falling back to vsprintf(). zlib"
- echo " can build but will be open to possible buffer-overflow security"
- echo " vulnerabilities."
+ echo "Checking for vsnprintf() in stdio.h... No." | tee -a configure.log
+ echo " WARNING: vsnprintf() not found, falling back to vsprintf(). zlib" | tee -a configure.log
+ echo " can build but will be open to possible buffer-overflow security" | tee -a configure.log
+ echo " vulnerabilities." | tee -a configure.log
+ echo >> configure.log
cat >$test.c <<EOF
#include <stdio.h>
#include <stdarg.h>
-
int mytest(const char *fmt, ...)
{
int n;
char buf[20];
va_list ap;
-
va_start(ap, fmt);
n = vsprintf(buf, fmt, ap);
va_end(ap);
return n;
}
-
int main()
{
return (mytest("Hello%d\n", 1));
}
EOF
- if test "`($CC -c $CFLAGS $test.c) 2>&1`" = ""; then
- echo "Checking for return value of vsprintf()... Yes."
+ if try $CC -c $CFLAGS $test.c; then
+ echo "Checking for return value of vsprintf()... Yes." | tee -a configure.log
else
CFLAGS="$CFLAGS -DHAS_vsprintf_void"
SFLAGS="$SFLAGS -DHAS_vsprintf_void"
- echo "Checking for return value of vsprintf()... No."
- echo " WARNING: apparently vsprintf() does not return a value. zlib"
- echo " can build but will be open to possible string-format security"
- echo " vulnerabilities."
+ echo "Checking for return value of vsprintf()... No." | tee -a configure.log
+ echo " WARNING: apparently vsprintf() does not return a value. zlib" | tee -a configure.log
+ echo " can build but will be open to possible string-format security" | tee -a configure.log
+ echo " vulnerabilities." | tee -a configure.log
fi
fi
else
- echo "Checking whether to use vs[n]printf() or s[n]printf()... using s[n]printf()."
+ echo "Checking whether to use vs[n]printf() or s[n]printf()... using s[n]printf()." | tee -a configure.log
+ echo >> configure.log
cat >$test.c <<EOF
#include <stdio.h>
-
int mytest()
{
char buf[20];
-
snprintf(buf, sizeof(buf), "%s", "foo");
return 0;
}
-
int main()
{
return (mytest());
}
EOF
- if test "`($CC $CFLAGS -o $test $test.c) 2>&1`" = ""; then
- echo "Checking for snprintf() in stdio.h... Yes."
+ if try $CC $CFLAGS -o $test $test.c; then
+ echo "Checking for snprintf() in stdio.h... Yes." | tee -a configure.log
+ echo >> configure.log
cat >$test.c <<EOF
#include <stdio.h>
-
int mytest()
{
char buf[20];
-
return snprintf(buf, sizeof(buf), "%s", "foo");
}
-
int main()
{
return (mytest());
}
EOF
- if test "`($CC -c $CFLAGS $test.c) 2>&1`" = ""; then
- echo "Checking for return value of snprintf()... Yes."
+ if try $CC -c $CFLAGS $test.c; then
+ echo "Checking for return value of snprintf()... Yes." | tee -a configure.log
else
CFLAGS="$CFLAGS -DHAS_snprintf_void"
SFLAGS="$SFLAGS -DHAS_snprintf_void"
- echo "Checking for return value of snprintf()... No."
- echo " WARNING: apparently snprintf() does not return a value. zlib"
- echo " can build but will be open to possible string-format security"
- echo " vulnerabilities."
+ echo "Checking for return value of snprintf()... No." | tee -a configure.log
+ echo " WARNING: apparently snprintf() does not return a value. zlib" | tee -a configure.log
+ echo " can build but will be open to possible string-format security" | tee -a configure.log
+ echo " vulnerabilities." | tee -a configure.log
fi
else
CFLAGS="$CFLAGS -DNO_snprintf"
SFLAGS="$SFLAGS -DNO_snprintf"
- echo "Checking for snprintf() in stdio.h... No."
- echo " WARNING: snprintf() not found, falling back to sprintf(). zlib"
- echo " can build but will be open to possible buffer-overflow security"
- echo " vulnerabilities."
+ echo "Checking for snprintf() in stdio.h... No." | tee -a configure.log
+ echo " WARNING: snprintf() not found, falling back to sprintf(). zlib" | tee -a configure.log
+ echo " can build but will be open to possible buffer-overflow security" | tee -a configure.log
+ echo " vulnerabilities." | tee -a configure.log
+ echo >> configure.log
cat >$test.c <<EOF
#include <stdio.h>
-
int mytest()
{
char buf[20];
-
return sprintf(buf, "%s", "foo");
}
-
int main()
{
return (mytest());
}
EOF
- if test "`($CC -c $CFLAGS $test.c) 2>&1`" = ""; then
- echo "Checking for return value of sprintf()... Yes."
+ if try $CC -c $CFLAGS $test.c; then
+ echo "Checking for return value of sprintf()... Yes." | tee -a configure.log
else
CFLAGS="$CFLAGS -DHAS_sprintf_void"
SFLAGS="$SFLAGS -DHAS_sprintf_void"
- echo "Checking for return value of sprintf()... No."
- echo " WARNING: apparently sprintf() does not return a value. zlib"
- echo " can build but will be open to possible string-format security"
- echo " vulnerabilities."
+ echo "Checking for return value of sprintf()... No." | tee -a configure.log
+ echo " WARNING: apparently sprintf() does not return a value. zlib" | tee -a configure.log
+ echo " can build but will be open to possible string-format security" | tee -a configure.log
+ echo " vulnerabilities." | tee -a configure.log
fi
fi
fi
if test "$gcc" -eq 1; then
+ echo >> configure.log
cat > $test.c <<EOF
#if ((__GNUC__-0) * 10 + __GNUC_MINOR__-0 >= 33)
# define ZLIB_INTERNAL __attribute__((visibility ("hidden")))
@@ -523,27 +620,50 @@
return 0;
}
EOF
- if test "`($CC -c $CFLAGS $test.c) 2>&1`" = ""; then
- echo "Checking for attribute(visibility) support... Yes."
+ if try $CC -c $CFLAGS $test.c; then
+ echo "Checking for attribute(visibility) support... Yes." | tee -a configure.log
else
CFLAGS="$CFLAGS -DNO_VIZ"
SFLAGS="$SFLAGS -DNO_VIZ"
- echo "Checking for attribute(visibility) support... No."
+ echo "Checking for attribute(visibility) support... No." | tee -a configure.log
fi
fi
-CPP=${CPP-"$CC -E"}
-case $CFLAGS in
- *ASMV*)
- if test "`$NM $test.o | grep _hello`" = ""; then
- CPP="$CPP -DNO_UNDERLINE"
- echo Checking for underline in external names... No.
- else
- echo Checking for underline in external names... Yes.
- fi ;;
-esac
+rm -f $test.[co] $test $test$shared_ext $test.gcno
-rm -f $test.[co] $test $test$shared_ext
+# show the results in the log
+echo >> configure.log
+echo ALL = $ALL >> configure.log
+echo AR = $AR >> configure.log
+echo ARFLAGS = $ARFLAGS >> configure.log
+echo CC = $CC >> configure.log
+echo CFLAGS = $CFLAGS >> configure.log
+echo CPP = $CPP >> configure.log
+echo EXE = $EXE >> configure.log
+echo LDCONFIG = $LDCONFIG >> configure.log
+echo LDFLAGS = $LDFLAGS >> configure.log
+echo LDSHARED = $LDSHARED >> configure.log
+echo LDSHAREDLIBC = $LDSHAREDLIBC >> configure.log
+echo OBJC = $OBJC >> configure.log
+echo PIC_OBJC = $PIC_OBJC >> configure.log
+echo RANLIB = $RANLIB >> configure.log
+echo SFLAGS = $SFLAGS >> configure.log
+echo SHAREDLIB = $SHAREDLIB >> configure.log
+echo SHAREDLIBM = $SHAREDLIBM >> configure.log
+echo SHAREDLIBV = $SHAREDLIBV >> configure.log
+echo STATICLIB = $STATICLIB >> configure.log
+echo TEST = $TEST >> configure.log
+echo VER = $VER >> configure.log
+echo exec_prefix = $exec_prefix >> configure.log
+echo includedir = $includedir >> configure.log
+echo libdir = $libdir >> configure.log
+echo mandir = $mandir >> configure.log
+echo prefix = $prefix >> configure.log
+echo sharedlibdir = $sharedlibdir >> configure.log
+echo uname = $uname >> configure.log
+echo -------------------- >> configure.log
+echo >> configure.log
+echo >> configure.log
# udpate Makefile
sed < Makefile.in "
@@ -557,7 +677,8 @@
/^SHAREDLIB *=/s#=.*#=$SHAREDLIB#
/^SHAREDLIBV *=/s#=.*#=$SHAREDLIBV#
/^SHAREDLIBM *=/s#=.*#=$SHAREDLIBM#
-/^AR *=/s#=.*#=$AR_RC#
+/^AR *=/s#=.*#=$AR#
+/^ARFLAGS *=/s#=.*#=$ARFLAGS#
/^RANLIB *=/s#=.*#=$RANLIB#
/^LDCONFIG *=/s#=.*#=$LDCONFIG#
/^LDSHAREDLIBC *=/s#=.*#=$LDSHAREDLIBC#
@@ -568,6 +689,8 @@
/^sharedlibdir *=/s#=.*#=$sharedlibdir#
/^includedir *=/s#=.*#=$includedir#
/^mandir *=/s#=.*#=$mandir#
+/^OBJC *=/s#=.*#= $OBJC#
+/^PIC_OBJC *=/s#=.*#= $PIC_OBJC#
/^all: */s#:.*#: $ALL#
/^test: */s#:.*#: $TEST#
" > Makefile
@@ -581,7 +704,8 @@
/^SHAREDLIB *=/s#=.*#=$SHAREDLIB#
/^SHAREDLIBV *=/s#=.*#=$SHAREDLIBV#
/^SHAREDLIBM *=/s#=.*#=$SHAREDLIBM#
-/^AR *=/s#=.*#=$AR_RC#
+/^AR *=/s#=.*#=$AR#
+/^ARFLAGS *=/s#=.*#=$ARFLAGS#
/^RANLIB *=/s#=.*#=$RANLIB#
/^EXE *=/s#=.*#=$EXE#
/^prefix *=/s#=.*#=$prefix#
diff --git a/configure.log b/configure.log
new file mode 100644
index 0000000..700a1b2
--- /dev/null
+++ b/configure.log
@@ -0,0 +1,145 @@
+--------------------
+./configure
+Mon Jan 30 15:25:35 PST 2012
+
+Checking for gcc...
+=== ztest19296.c ===
+extern int getchar();
+int hello() {return getchar();}
+===
+gcc -c -O3 ztest19296.c
+... using gcc
+
+Checking for shared library support...
+=== ztest19296.c ===
+extern int getchar();
+int hello() {return getchar();}
+===
+gcc -w -c -O3 -fPIC ztest19296.c
+gcc -shared -Wl,-soname,libz.so.1,--version-script,zlib.map -O3 -fPIC -o ztest19296.so ztest19296.o
+Building shared library libz.so.1.2.6 with gcc.
+
+=== ztest19296.c ===
+#include <sys/types.h>
+off64_t dummy = 0;
+===
+gcc -c -O3 -D_LARGEFILE64_SOURCE=1 ztest19296.c
+Checking for off64_t... Yes.
+Checking for fseeko... Yes.
+
+=== ztest19296.c ===
+#include <unistd.h>
+int main() { return 0; }
+===
+gcc -c -O3 -D_LARGEFILE64_SOURCE=1 ztest19296.c
+Checking for unistd.h... Yes.
+
+=== ztest19296.c ===
+#include <stdarg.h>
+int main() { return 0; }
+===
+gcc -c -O3 -D_LARGEFILE64_SOURCE=1 ztest19296.c
+Checking for stdarg.h... Yes.
+
+=== ztest19296.c ===
+#include <stdio.h>
+#include <stdarg.h>
+#include "zconf.h"
+int main()
+{
+#ifndef STDC
+ choke me
+#endif
+ return 0;
+}
+===
+gcc -c -O3 -D_LARGEFILE64_SOURCE=1 ztest19296.c
+Checking whether to use vs[n]printf() or s[n]printf()... using vs[n]printf().
+
+=== ztest19296.c ===
+#include <stdio.h>
+#include <stdarg.h>
+int mytest(const char *fmt, ...)
+{
+ char buf[20];
+ va_list ap;
+ va_start(ap, fmt);
+ vsnprintf(buf, sizeof(buf), fmt, ap);
+ va_end(ap);
+ return 0;
+}
+int main()
+{
+ return (mytest("Hello%d\n", 1));
+}
+===
+gcc -O3 -D_LARGEFILE64_SOURCE=1 -o ztest19296 ztest19296.c
+Checking for vsnprintf() in stdio.h... Yes.
+
+=== ztest19296.c ===
+#include <stdio.h>
+#include <stdarg.h>
+int mytest(const char *fmt, ...)
+{
+ int n;
+ char buf[20];
+ va_list ap;
+ va_start(ap, fmt);
+ n = vsnprintf(buf, sizeof(buf), fmt, ap);
+ va_end(ap);
+ return n;
+}
+int main()
+{
+ return (mytest("Hello%d\n", 1));
+}
+===
+gcc -c -O3 -D_LARGEFILE64_SOURCE=1 ztest19296.c
+Checking for return value of vsnprintf()... Yes.
+
+=== ztest19296.c ===
+#if ((__GNUC__-0) * 10 + __GNUC_MINOR__-0 >= 33)
+# define ZLIB_INTERNAL __attribute__((visibility ("hidden")))
+#else
+# define ZLIB_INTERNAL
+#endif
+int ZLIB_INTERNAL foo;
+int main()
+{
+ return 0;
+}
+===
+gcc -c -O3 -D_LARGEFILE64_SOURCE=1 ztest19296.c
+Checking for attribute(visibility) support... Yes.
+
+ALL = static shared all64
+AR = ar
+ARFLAGS = rc
+CC = gcc
+CFLAGS = -O3 -D_LARGEFILE64_SOURCE=1
+CPP = gcc -E
+EXE =
+LDCONFIG = ldconfig
+LDFLAGS =
+LDSHARED = gcc -shared -Wl,-soname,libz.so.1,--version-script,zlib.map
+LDSHAREDLIBC = -lc
+OBJC = $(OBJZ) $(OBJG)
+PIC_OBJC = $(PIC_OBJZ) $(PIC_OBJG)
+RANLIB = ranlib
+SFLAGS = -O3 -fPIC -D_LARGEFILE64_SOURCE=1
+SHAREDLIB = libz.so
+SHAREDLIBM = libz.so.1
+SHAREDLIBV = libz.so.1.2.6
+STATICLIB = libz.a
+TEST = all teststatic testshared test64
+VER = 1.2.6
+exec_prefix = ${prefix}
+includedir = ${prefix}/include
+libdir = ${exec_prefix}/lib
+mandir = ${prefix}/share/man
+prefix = /usr/local
+sharedlibdir = ${libdir}
+uname = Linux
+--------------------
+
+
diff --git a/contrib/asm686/match.S b/contrib/asm686/match.S
index 06817e1..fa42109 100644
--- a/contrib/asm686/match.S
+++ b/contrib/asm686/match.S
@@ -83,17 +83,25 @@
.text
/* uInt longest_match(deflate_state *deflatestate, IPos curmatch) */
+.cfi_sections .debug_frame
longest_match:
+.cfi_startproc
/* Save registers that the compiler may be using, and adjust %esp to */
/* make room for our stack frame. */
pushl %ebp
+ .cfi_def_cfa_offset 8
+ .cfi_offset ebp, -8
pushl %edi
+ .cfi_def_cfa_offset 12
pushl %esi
+ .cfi_def_cfa_offset 16
pushl %ebx
+ .cfi_def_cfa_offset 20
subl $LocalVarsSize, %esp
+ .cfi_def_cfa_offset LocalVarsSize+20
/* Retrieve the function arguments. %ecx will hold cur_match */
/* throughout the entire function. %edx will hold the pointer to the */
@@ -108,7 +116,7 @@
/* if (s->prev_length >= s->good_match) { */
/* chain_length >>= 2; */
/* } */
-
+
movl dsPrevLen(%edx), %eax
movl dsGoodMatch(%edx), %ebx
cmpl %ebx, %eax
@@ -336,8 +344,14 @@
/* Restore the stack and return from whence we came. */
addl $LocalVarsSize, %esp
+ .cfi_def_cfa_offset 20
popl %ebx
+ .cfi_def_cfa_offset 16
popl %esi
+ .cfi_def_cfa_offset 12
popl %edi
+ .cfi_def_cfa_offset 8
popl %ebp
+ .cfi_def_cfa_offset 4
+.cfi_endproc
match_init: ret
diff --git a/contrib/delphi/ZLib.pas b/contrib/delphi/ZLib.pas
index 0d86fb5..6daf8bb 100644
--- a/contrib/delphi/ZLib.pas
+++ b/contrib/delphi/ZLib.pas
@@ -152,7 +152,7 @@
const OutBuf: Pointer; BufSize: Integer);
const
- zlib_version = '1.2.5';
+ zlib_version = '1.2.6';
type
EZlibError = class(Exception);
diff --git a/contrib/delphi/zlibd32.mak b/contrib/delphi/zlibd32.mak
index 0d0699a..9bb00b7 100644
--- a/contrib/delphi/zlibd32.mak
+++ b/contrib/delphi/zlibd32.mak
@@ -63,9 +63,9 @@
zutil.obj: zutil.c zutil.h zlib.h zconf.h
-example.obj: example.c zlib.h zconf.h
+example.obj: test/example.c zlib.h zconf.h
-minigzip.obj: minigzip.c zlib.h zconf.h
+minigzip.obj: test/minigzip.c zlib.h zconf.h
# For the sake of the old Borland make,
diff --git a/contrib/dotzlib/DotZLib/UnitTests.cs b/contrib/dotzlib/DotZLib/UnitTests.cs
index 3bbcc8c..b33d9d9 100644
--- a/contrib/dotzlib/DotZLib/UnitTests.cs
+++ b/contrib/dotzlib/DotZLib/UnitTests.cs
@@ -156,7 +156,7 @@
public void Info_Version()
{
Info info = new Info();
- Assert.AreEqual("1.2.5", Info.Version);
+ Assert.AreEqual("1.2.6", Info.Version);
Assert.AreEqual(32, info.SizeOfUInt);
Assert.AreEqual(32, info.SizeOfULong);
Assert.AreEqual(32, info.SizeOfPointer);
diff --git a/contrib/infback9/inftree9.c b/contrib/infback9/inftree9.c
index 306c5f1..4ce2a1f 100644
--- a/contrib/infback9/inftree9.c
+++ b/contrib/infback9/inftree9.c
@@ -1,5 +1,5 @@
/* inftree9.c -- generate Huffman trees for efficient decoding
- * Copyright (C) 1995-2010 Mark Adler
+ * Copyright (C) 1995-2012 Mark Adler
* For conditions of distribution and use, see copyright notice in zlib.h
*/
@@ -9,7 +9,7 @@
#define MAXBITS 15
const char inflate9_copyright[] =
- " inflate9 1.2.5 Copyright 1995-2010 Mark Adler ";
+ " inflate9 1.2.6 Copyright 1995-2012 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
@@ -64,7 +64,7 @@
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, 73, 195};
+ 133, 133, 133, 133, 144, 203, 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,
diff --git a/contrib/masmx86/inffas32.asm b/contrib/masmx86/inffas32.asm
index 92ac22a..03d20f8 100644
--- a/contrib/masmx86/inffas32.asm
+++ b/contrib/masmx86/inffas32.asm
@@ -73,11 +73,6 @@
_TEXT segment
-PUBLIC _inflate_fast
-
-ALIGN 4
-_inflate_fast:
- jmp inflate_fast_entry
@@ -163,7 +158,8 @@
;SECTION .text
ALIGN 4
-inflate_fast_entry:
+_inflate_fast proc near
+.FPO (16, 4, 0, 0, 1, 0)
push edi
push esi
push ebp
@@ -1078,6 +1074,7 @@
pop esi
pop edi
ret
+_inflate_fast endp
_TEXT ends
end
diff --git a/contrib/masmx86/match686.asm b/contrib/masmx86/match686.asm
index 1eaf555..3b09212 100644
--- a/contrib/masmx86/match686.asm
+++ b/contrib/masmx86/match686.asm
@@ -195,6 +195,7 @@
ELSE
_longest_match proc near
ENDIF
+.FPO (9, 4, 0, 0, 1, 0)
;;; Save registers that the compiler may be using, and adjust esp to
;;; make room for our stack frame.
diff --git a/contrib/minizip/Makefile.am b/contrib/minizip/Makefile.am
new file mode 100644
index 0000000..2ced913
--- /dev/null
+++ b/contrib/minizip/Makefile.am
@@ -0,0 +1,38 @@
+lib_LTLIBRARIES = libminizip.la
+
+if COND_DEMOS
+bin_PROGRAMS = miniunzip minizip
+endif
+
+zlib_top_srcdir = $(top_srcdir)/../..
+zlib_top_builddir = $(top_builddir)/../..
+
+AM_CPPFLAGS = -I$(zlib_top_srcdir)
+AM_LDFLAGS = -L$(zlib_top_builddir)
+
+libminizip_la_SOURCES = \
+ ioapi.c \
+ mztools.c \
+ unzip.c \
+ zip.c
+
+libminizip_la_LDFLAGS = $(AM_LDFLAGS) -version-info 1:0:0 -lz
+
+minizip_includedir = $(includedir)/minizip
+minizip_include_HEADERS = \
+ crypt.h \
+ ioapi.h \
+ mztools.h \
+ unzip.h \
+ zip.h
+
+pkgconfigdir = $(libdir)/pkgconfig
+pkgconfig_DATA = minizip.pc
+
+EXTRA_PROGRAMS = miniunzip minizip
+
+miniunzip_SOURCES = miniunz.c
+miniunzip_LDADD = libminizip.la
+
+minizip_SOURCES = minizip.c
+minizip_LDADD = libminizip.la -lz
diff --git a/contrib/minizip/configure.ac b/contrib/minizip/configure.ac
new file mode 100644
index 0000000..53adbb8
--- /dev/null
+++ b/contrib/minizip/configure.ac
@@ -0,0 +1,22 @@
+# -*- Autoconf -*-
+# Process this file with autoconf to produce a configure script.
+
+AC_INIT([minizip], [1.2.6], [bugzilla.redhat.com])
+AC_CONFIG_SRCDIR([minizip.c])
+AM_INIT_AUTOMAKE([foreign])
+LT_INIT
+
+AC_MSG_CHECKING([whether to build example programs])
+AC_ARG_ENABLE([demos], AC_HELP_STRING([--enable-demos], [build example programs]))
+AM_CONDITIONAL([COND_DEMOS], [test "$enable_demos" = yes])
+if test "$enable_demos" = yes
+then
+ AC_MSG_RESULT([yes])
+else
+ AC_MSG_RESULT([no])
+fi
+
+AC_SUBST([HAVE_UNISTD_H], [0])
+AC_CHECK_HEADER([unistd.h], [HAVE_UNISTD_H=1], [])
+AC_CONFIG_FILES([Makefile minizip.pc])
+AC_OUTPUT
diff --git a/contrib/minizip/ioapi.c b/contrib/minizip/ioapi.c
index 49958f6..7f5c191 100644
--- a/contrib/minizip/ioapi.c
+++ b/contrib/minizip/ioapi.c
@@ -10,10 +10,22 @@
*/
-#if (defined(_WIN32))
+#if defined(_WIN32) && (!(defined(_CRT_SECURE_NO_WARNINGS)))
#define _CRT_SECURE_NO_WARNINGS
#endif
+#if defined(__APPLE__) || defined(IOAPI_NO_64)
+// In darwin and perhaps other BSD variants off_t is a 64 bit value, hence no need for specific 64 bit functions
+#define FOPEN_FUNC(filename, mode) fopen(filename, mode)
+#define FTELLO_FUNC(stream) ftello(stream)
+#define FSEEKO_FUNC(stream, offset, origin) fseeko(stream, offset, origin)
+#else
+#define FOPEN_FUNC(filename, mode) fopen64(filename, mode)
+#define FTELLO_FUNC(stream) ftello64(stream)
+#define FSEEKO_FUNC(stream, offset, origin) fseeko64(stream, offset, origin)
+#endif
+
+
#include "ioapi.h"
voidpf call_zopen64 (const zlib_filefunc64_32_def* pfilefunc,const void*filename,int mode)
@@ -47,7 +59,7 @@
else
{
uLong tell_uLong = (*(pfilefunc->ztell32_file))(pfilefunc->zfile_func64.opaque,filestream);
- if ((tell_uLong) == ((uLong)-1))
+ if ((tell_uLong) == MAXU32)
return (ZPOS64_T)-1;
else
return tell_uLong;
@@ -112,7 +124,7 @@
mode_fopen = "wb";
if ((filename!=NULL) && (mode_fopen != NULL))
- file = fopen64((const char*)filename, mode_fopen);
+ file = FOPEN_FUNC((const char*)filename, mode_fopen);
return file;
}
@@ -142,7 +154,7 @@
static ZPOS64_T ZCALLBACK ftell64_file_func (voidpf opaque, voidpf stream)
{
ZPOS64_T ret;
- ret = ftello64((FILE *)stream);
+ ret = FTELLO_FUNC((FILE *)stream);
return ret;
}
@@ -188,7 +200,7 @@
}
ret = 0;
- if(fseeko64((FILE *)stream, offset, fseek_origin) != 0)
+ if(FSEEKO_FUNC((FILE *)stream, offset, fseek_origin) != 0)
ret = -1;
return ret;
diff --git a/contrib/minizip/ioapi.h b/contrib/minizip/ioapi.h
index 8309c4c..8dcbdb0 100644
--- a/contrib/minizip/ioapi.h
+++ b/contrib/minizip/ioapi.h
@@ -21,7 +21,7 @@
#ifndef _ZLIBIOAPI64_H
#define _ZLIBIOAPI64_H
-#if (!defined(_WIN32)) && (!defined(WIN32))
+#if (!defined(_WIN32)) && (!defined(WIN32)) && (!defined(__APPLE__))
// Linux needs this to support file operation on files larger then 4+GB
// But might need better if/def to select just the platforms that needs them.
@@ -38,6 +38,7 @@
#ifndef _FILE_OFFSET_BIT
#define _FILE_OFFSET_BIT 64
#endif
+
#endif
#include <stdio.h>
@@ -49,6 +50,11 @@
#define ftello64 ftell
#define fseeko64 fseek
#else
+#ifdef __FreeBSD__
+#define fopen64 fopen
+#define ftello64 ftello
+#define fseeko64 fseeko
+#endif
#ifdef _MSC_VER
#define fopen64 fopen
#if (_MSC_VER >= 1400) && (!(defined(NO_MSCVER_FILE64_FUNC)))
@@ -85,6 +91,8 @@
typedef uint64_t ZPOS64_T;
#else
+/* Maximum unsigned 32-bit value used as placeholder for zip64 */
+#define MAXU32 0xffffffff
#if defined(_MSC_VER) || defined(__BORLANDC__)
typedef unsigned __int64 ZPOS64_T;
diff --git a/contrib/minizip/miniunz.c b/contrib/minizip/miniunz.c
index 9ed009f..3d65401 100644
--- a/contrib/minizip/miniunz.c
+++ b/contrib/minizip/miniunz.c
@@ -12,7 +12,7 @@
Copyright (C) 2009-2010 Mathias Svensson ( http://result42.com )
*/
-#ifndef _WIN32
+#if (!defined(_WIN32)) && (!defined(WIN32)) && (!defined(__APPLE__))
#ifndef __USE_FILE_OFFSET64
#define __USE_FILE_OFFSET64
#endif
@@ -27,6 +27,18 @@
#endif
#endif
+#ifdef __APPLE__
+// In darwin and perhaps other BSD variants off_t is a 64 bit value, hence no need for specific 64 bit functions
+#define FOPEN_FUNC(filename, mode) fopen(filename, mode)
+#define FTELLO_FUNC(stream) ftello(stream)
+#define FSEEKO_FUNC(stream, offset, origin) fseeko(stream, offset, origin)
+#else
+#define FOPEN_FUNC(filename, mode) fopen64(filename, mode)
+#define FTELLO_FUNC(stream) ftello64(stream)
+#define FSEEKO_FUNC(stream, offset, origin) fseeko64(stream, offset, origin)
+#endif
+
+
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
@@ -34,14 +46,15 @@
#include <errno.h>
#include <fcntl.h>
-#ifdef unix
-# include <unistd.h>
-# include <utime.h>
-#else
+#ifdef _WIN32
# include <direct.h>
# include <io.h>
+#else
+# include <unistd.h>
+# include <utime.h>
#endif
+
#include "unzip.h"
#define CASESENSITIVITY (0)
@@ -84,7 +97,7 @@
SetFileTime(hFile,&ftm,&ftLastAcc,&ftm);
CloseHandle(hFile);
#else
-#ifdef unix
+#ifdef unix || __APPLE__
struct utimbuf ut;
struct tm newdate;
newdate.tm_sec = tmu_date.tm_sec;
@@ -114,10 +127,10 @@
int ret=0;
#ifdef _WIN32
ret = _mkdir(dirname);
-#else
-#ifdef unix
+#elif unix
ret = mkdir (dirname,0775);
-#endif
+#elif __APPLE__
+ ret = mkdir (dirname,0775);
#endif
return ret;
}
@@ -364,7 +377,7 @@
{
char rep=0;
FILE* ftestexist;
- ftestexist = fopen64(write_filename,"rb");
+ ftestexist = FOPEN_FUNC(write_filename,"rb");
if (ftestexist!=NULL)
{
fclose(ftestexist);
@@ -395,8 +408,7 @@
if ((skip==0) && (err==UNZ_OK))
{
- fout=fopen64(write_filename,"wb");
-
+ fout=FOPEN_FUNC(write_filename,"wb");
/* some zipfile don't contain directory alone before file */
if ((fout==NULL) && ((*popt_extract_without_path)==0) &&
(filename_withoutpath!=(char*)filename_inzip))
@@ -405,7 +417,7 @@
*(filename_withoutpath-1)='\0';
makedir(write_filename);
*(filename_withoutpath-1)=c;
- fout=fopen64(write_filename,"wb");
+ fout=FOPEN_FUNC(write_filename,"wb");
}
if (fout==NULL)
diff --git a/contrib/minizip/minizip.c b/contrib/minizip/minizip.c
index 7a4fa5a..4288962 100644
--- a/contrib/minizip/minizip.c
+++ b/contrib/minizip/minizip.c
@@ -13,7 +13,7 @@
*/
-#ifndef _WIN32
+#if (!defined(_WIN32)) && (!defined(WIN32)) && (!defined(__APPLE__))
#ifndef __USE_FILE_OFFSET64
#define __USE_FILE_OFFSET64
#endif
@@ -28,6 +28,19 @@
#endif
#endif
+#ifdef __APPLE__
+// In darwin and perhaps other BSD variants off_t is a 64 bit value, hence no need for specific 64 bit functions
+#define FOPEN_FUNC(filename, mode) fopen(filename, mode)
+#define FTELLO_FUNC(stream) ftello(stream)
+#define FSEEKO_FUNC(stream, offset, origin) fseeko(stream, offset, origin)
+#else
+#define FOPEN_FUNC(filename, mode) fopen64(filename, mode)
+#define FTELLO_FUNC(stream) ftello64(stream)
+#define FSEEKO_FUNC(stream, offset, origin) fseeko64(stream, offset, origin)
+#endif
+
+
+
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
@@ -35,14 +48,14 @@
#include <errno.h>
#include <fcntl.h>
-#ifdef unix
+#ifdef _WIN32
+# include <direct.h>
+# include <io.h>
+#else
# include <unistd.h>
# include <utime.h>
# include <sys/types.h>
# include <sys/stat.h>
-#else
-# include <direct.h>
-# include <io.h>
#endif
#include "zip.h"
@@ -81,7 +94,7 @@
return ret;
}
#else
-#ifdef unix
+#ifdef unix || __APPLE__
uLong filetime(f, tmzip, dt)
char *f; /* name of file to get info on */
tm_zip *tmzip; /* return value: access, modific. and creation times */
@@ -142,7 +155,7 @@
{
FILE* ftestexist;
int ret = 1;
- ftestexist = fopen64(filename,"rb");
+ ftestexist = FOPEN_FUNC(filename,"rb");
if (ftestexist==NULL)
ret = 0;
else
@@ -173,7 +186,8 @@
{
unsigned long calculate_crc=0;
int err=ZIP_OK;
- FILE * fin = fopen64(filenameinzip,"rb");
+ FILE * fin = FOPEN_FUNC(filenameinzip,"rb");
+
unsigned long size_read = 0;
unsigned long total_read = 0;
if (fin==NULL)
@@ -211,13 +225,12 @@
{
int largeFile = 0;
ZPOS64_T pos = 0;
- FILE* pFile = fopen64(filename, "rb");
+ FILE* pFile = FOPEN_FUNC(filename, "rb");
if(pFile != NULL)
{
- int n = fseeko64(pFile, 0, SEEK_END);
-
- pos = ftello64(pFile);
+ int n = FSEEKO_FUNC(pFile, 0, SEEK_END);
+ pos = FTELLO_FUNC(pFile);
printf("File : %s is %lld bytes\n", filename, pos);
@@ -447,7 +460,7 @@
printf("error in opening %s in zipfile\n",filenameinzip);
else
{
- fin = fopen64(filenameinzip,"rb");
+ fin = FOPEN_FUNC(filenameinzip,"rb");
if (fin==NULL)
{
err=ZIP_ERRNO;
diff --git a/contrib/minizip/minizip.pc.in b/contrib/minizip/minizip.pc.in
new file mode 100644
index 0000000..69b5b7f
--- /dev/null
+++ b/contrib/minizip/minizip.pc.in
@@ -0,0 +1,12 @@
+prefix=@prefix@
+exec_prefix=@exec_prefix@
+libdir=@libdir@
+includedir=@includedir@/minizip
+
+Name: minizip
+Description: Minizip zip file manipulation library
+Requires:
+Version: @PACKAGE_VERSION@
+Libs: -L${libdir} -lminizip
+Libs.private: -lz
+Cflags: -I${includedir}
diff --git a/contrib/minizip/mztools.c b/contrib/minizip/mztools.c
index f9092e6..96891c2 100644
--- a/contrib/minizip/mztools.c
+++ b/contrib/minizip/mztools.c
@@ -42,7 +42,7 @@
int entries = 0;
uLong totalBytes = 0;
char header[30];
- char filename[256];
+ char filename[1024];
char extra[1024];
int offset = 0;
int offsetCD = 0;
@@ -73,9 +73,14 @@
/* Filename */
if (fnsize > 0) {
- if (fread(filename, 1, fnsize, fpZip) == fnsize) {
- if (fwrite(filename, 1, fnsize, fpOut) == fnsize) {
- offset += fnsize;
+ if (fnsize < sizeof(filename)) {
+ if (fread(filename, 1, fnsize, fpZip) == fnsize) {
+ if (fwrite(filename, 1, fnsize, fpOut) == fnsize) {
+ offset += fnsize;
+ } else {
+ err = Z_ERRNO;
+ break;
+ }
} else {
err = Z_ERRNO;
break;
@@ -91,9 +96,14 @@
/* Extra field */
if (extsize > 0) {
- if (fread(extra, 1, extsize, fpZip) == extsize) {
- if (fwrite(extra, 1, extsize, fpOut) == extsize) {
- offset += extsize;
+ if (extsize < sizeof(extra)) {
+ if (fread(extra, 1, extsize, fpZip) == extsize) {
+ if (fwrite(extra, 1, extsize, fpOut) == extsize) {
+ offset += extsize;
+ } else {
+ err = Z_ERRNO;
+ break;
+ }
} else {
err = Z_ERRNO;
break;
diff --git a/contrib/minizip/mztools.h b/contrib/minizip/mztools.h
index 88b3459..a49a426 100644
--- a/contrib/minizip/mztools.h
+++ b/contrib/minizip/mztools.h
@@ -28,4 +28,10 @@
uLong* nRecovered,
uLong* bytesRecovered);
+
+#ifdef __cplusplus
+}
+#endif
+
+
#endif
diff --git a/contrib/minizip/unzip.c b/contrib/minizip/unzip.c
index 7617f41..affad4b 100644
--- a/contrib/minizip/unzip.c
+++ b/contrib/minizip/unzip.c
@@ -1040,26 +1040,26 @@
{
uLong uL;
- if(file_info.uncompressed_size == (ZPOS64_T)(unsigned long)-1)
+ if(file_info.uncompressed_size == MAXU32)
{
if (unz64local_getLong64(&s->z_filefunc, s->filestream,&file_info.uncompressed_size) != UNZ_OK)
err=UNZ_ERRNO;
}
- if(file_info.compressed_size == (ZPOS64_T)(unsigned long)-1)
+ if(file_info.compressed_size == MAXU32)
{
if (unz64local_getLong64(&s->z_filefunc, s->filestream,&file_info.compressed_size) != UNZ_OK)
err=UNZ_ERRNO;
}
- if(file_info_internal.offset_curfile == (ZPOS64_T)(unsigned long)-1)
+ if(file_info_internal.offset_curfile == MAXU32)
{
/* Relative Header offset */
if (unz64local_getLong64(&s->z_filefunc, s->filestream,&file_info_internal.offset_curfile) != UNZ_OK)
err=UNZ_ERRNO;
}
- if(file_info.disk_num_start == (unsigned long)-1)
+ if(file_info.disk_num_start == MAXU32)
{
/* Disk Start Number */
if (unz64local_getLong(&s->z_filefunc, s->filestream,&uL) != UNZ_OK)
@@ -1145,7 +1145,7 @@
szFileName,fileNameBufferSize,
extraField,extraFieldBufferSize,
szComment,commentBufferSize);
- if (err==UNZ_OK)
+ if ((err==UNZ_OK) && (pfile_info != NULL))
{
pfile_info->version = file_info64.version;
pfile_info->version_needed = file_info64.version_needed;
@@ -1696,7 +1696,7 @@
return UNZ_PARAMERROR;
- if ((pfile_in_zip_read_info->read_buffer == NULL))
+ if (pfile_in_zip_read_info->read_buffer == NULL)
return UNZ_END_OF_LIST_OF_FILE;
if (len==0)
return 0;
diff --git a/contrib/minizip/zip.c b/contrib/minizip/zip.c
index 3c34fc8..1b99580 100644
--- a/contrib/minizip/zip.c
+++ b/contrib/minizip/zip.c
@@ -1067,6 +1067,7 @@
int err = ZIP_OK;
# ifdef NOCRYPT
+ (crcForCrypting);
if (password != NULL)
return ZIP_PARAMERROR;
# endif
@@ -1710,7 +1711,7 @@
if (err==ZIP_OK)
err = zip64local_putValue(&zi->z_filefunc,zi->filestream,crc32,4); /* crc 32, unknown */
- if(uncompressed_size >= 0xffffffff)
+ if(uncompressed_size >= 0xffffffff || compressed_size >= 0xffffffff )
{
if(zi->ci.pos_zip64extrainfo > 0)
{
@@ -1724,6 +1725,8 @@
if (err==ZIP_OK) /* uncompressed size, unknown */
err = zip64local_putValue(&zi->z_filefunc, zi->filestream, compressed_size, 8);
}
+ else
+ err = ZIP_BADZIPFILE; // Caller passed zip64 = 0, so no room for zip64 info -> fatal
}
else
{
@@ -1852,7 +1855,7 @@
err = zip64local_putValue(&zi->z_filefunc,zi->filestream, (uLong)0xffffffff,4);
}
else
- err = zip64local_putValue(&zi->z_filefunc,zi->filestream, (uLong)(centraldir_pos_inzip - zi->add_position_when_writting_offset),4);
+ err = zip64local_putValue(&zi->z_filefunc,zi->filestream, (uLong)(centraldir_pos_inzip - zi->add_position_when_writting_offset),4);
}
return err;
@@ -1919,7 +1922,7 @@
free_linkedlist(&(zi->central_dir));
pos = centraldir_pos_inzip - zi->add_position_when_writting_offset;
- if(pos >= 0xffffffff)
+ if(pos >= 0xffffffff || zi->number_entry > 0xFFFF)
{
ZPOS64_T Zip64EOCDpos = ZTELL64(zi->z_filefunc,zi->filestream);
Write_Zip64EndOfCentralDirectoryRecord(zi, size_centraldir, centraldir_pos_inzip);
diff --git a/contrib/pascal/zlibd32.mak b/contrib/pascal/zlibd32.mak
index 0d0699a..9bb00b7 100644
--- a/contrib/pascal/zlibd32.mak
+++ b/contrib/pascal/zlibd32.mak
@@ -63,9 +63,9 @@
zutil.obj: zutil.c zutil.h zlib.h zconf.h
-example.obj: example.c zlib.h zconf.h
+example.obj: test/example.c zlib.h zconf.h
-minigzip.obj: minigzip.c zlib.h zconf.h
+minigzip.obj: test/minigzip.c zlib.h zconf.h
# For the sake of the old Borland make,
diff --git a/contrib/pascal/zlibpas.pas b/contrib/pascal/zlibpas.pas
index 637ae3a..5c9875c 100644
--- a/contrib/pascal/zlibpas.pas
+++ b/contrib/pascal/zlibpas.pas
@@ -10,7 +10,8 @@
interface
const
- ZLIB_VERSION = '1.2.5';
+ ZLIB_VERSION = '1.2.6';
+ ZLIB_VERNUM = $1260;
type
alloc_func = function(opaque: Pointer; items, size: Integer): Pointer;
@@ -45,6 +46,23 @@
reserved: LongInt; (* reserved for future use *)
end;
+ gz_headerp = ^gz_header;
+ gz_header = packed record
+ text: Integer; (* true if compressed data believed to be text *)
+ time: LongInt; (* modification time *)
+ xflags: Integer; (* extra flags (not used when writing a gzip file) *)
+ os: Integer; (* operating system *)
+ extra: PChar; (* pointer to extra field or Z_NULL if none *)
+ extra_len: Integer; (* extra field length (valid if extra != Z_NULL) *)
+ extra_max: Integer; (* space at extra (only when reading header) *)
+ name: PChar; (* pointer to zero-terminated file name or Z_NULL *)
+ name_max: Integer; (* space at name (only when reading header) *)
+ comment: PChar; (* pointer to zero-terminated comment or Z_NULL *)
+ comm_max: Integer; (* space at comment (only when reading header) *)
+ hcrc: Integer; (* true if there was or will be a header crc *)
+ done: Integer; (* true when done reading gzip header *)
+ end;
+
(* constants *)
const
Z_NO_FLUSH = 0;
@@ -52,6 +70,8 @@
Z_SYNC_FLUSH = 2;
Z_FULL_FLUSH = 3;
Z_FINISH = 4;
+ Z_BLOCK = 5;
+ Z_TREES = 6;
Z_OK = 0;
Z_STREAM_END = 1;
@@ -71,9 +91,11 @@
Z_FILTERED = 1;
Z_HUFFMAN_ONLY = 2;
Z_RLE = 3;
+ Z_FIXED = 4;
Z_DEFAULT_STRATEGY = 0;
Z_BINARY = 0;
+ Z_TEXT = 1;
Z_ASCII = 1;
Z_UNKNOWN = 2;
@@ -96,14 +118,21 @@
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 deflateTune(var strm: z_stream; good_length, max_lazy, nice_length, max_chain: Integer): Integer;
function deflateBound(var strm: z_stream; sourceLen: LongInt): LongInt;
+function deflatePending(var strm: z_stream; var pending: Integer; var bits: Integer): Integer;
function deflatePrime(var strm: z_stream; bits, value: Integer): Integer;
+function deflateSetHeader(var strm: z_stream; head: gz_header): Integer;
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 inflateReset2(var strm: z_stream; windowBits: Integer): Integer;
+function inflatePrime(var strm: z_stream; bits, value: Integer): Integer;
+function inflateMark(var strm: z_stream): LongInt;
+function inflateGetHeader(var strm: z_stream; var head: gz_header): 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;
@@ -123,7 +152,9 @@
(* checksum functions *)
function adler32(adler: LongInt; const buf: PChar; len: Integer): LongInt;
+function adler32_combine(adler1, adler2, len2: LongInt): LongInt;
function crc32(crc: LongInt; const buf: PChar; len: Integer): LongInt;
+function crc32_combine(crc1, crc2, len2: LongInt): LongInt;
(* various hacks, don't look :) *)
function deflateInit_(var strm: z_stream; level: Integer;
@@ -155,10 +186,12 @@
{$L zutil.obj}
function adler32; external;
+function adler32_combine; external;
function compress; external;
function compress2; external;
function compressBound; external;
function crc32; external;
+function crc32_combine; external;
function deflate; external;
function deflateBound; external;
function deflateCopy; external;
@@ -166,18 +199,25 @@
function deflateInit_; external;
function deflateInit2_; external;
function deflateParams; external;
+function deflatePending; external;
function deflatePrime; external;
function deflateReset; external;
function deflateSetDictionary; external;
+function deflateSetHeader; external;
+function deflateTune; external;
function inflate; external;
function inflateBack; external;
function inflateBackEnd; external;
function inflateBackInit_; external;
function inflateCopy; external;
function inflateEnd; external;
+function inflateGetHeader; external;
function inflateInit_; external;
function inflateInit2_; external;
+function inflateMark; external;
+function inflatePrime; external;
function inflateReset; external;
+function inflateReset2; external;
function inflateSetDictionary; external;
function inflateSync; external;
function uncompress; external;
diff --git a/contrib/puff/Makefile b/contrib/puff/Makefile
index b6b6940..0e2594c 100644
--- a/contrib/puff/Makefile
+++ b/contrib/puff/Makefile
@@ -1,8 +1,42 @@
-puff: puff.c puff.h
- cc -DTEST -o puff puff.c
+CFLAGS=-O
+
+puff: puff.o pufftest.o
+
+puff.o: puff.h
+
+pufftest.o: puff.h
test: puff
puff zeros.raw
+puft: puff.c puff.h pufftest.o
+ cc -fprofile-arcs -ftest-coverage -o puft puff.c pufftest.o
+
+# puff full coverage test (should say 100%)
+cov: puft
+ @rm -f *.gcov *.gcda
+ @puft -w zeros.raw 2>&1 | cat > /dev/null
+ @echo '04' | xxd -r -p | puft 2> /dev/null || test $$? -eq 2
+ @echo '00' | xxd -r -p | puft 2> /dev/null || test $$? -eq 2
+ @echo '00 00 00 00 00' | xxd -r -p | puft 2> /dev/null || test $$? -eq 254
+ @echo '00 01 00 fe ff' | xxd -r -p | puft 2> /dev/null || test $$? -eq 2
+ @echo '01 01 00 fe ff 0a' | xxd -r -p | puft -f 2>&1 | cat > /dev/null
+ @echo '02 7e ff ff' | xxd -r -p | puft 2> /dev/null || test $$? -eq 246
+ @echo '02' | xxd -r -p | puft 2> /dev/null || test $$? -eq 2
+ @echo '04 80 49 92 24 49 92 24 0f b4 ff ff c3 04' | xxd -r -p | puft 2> /dev/null || test $$? -eq 2
+ @echo '04 80 49 92 24 49 92 24 71 ff ff 93 11 00' | xxd -r -p | puft 2> /dev/null || test $$? -eq 249
+ @echo '04 c0 81 08 00 00 00 00 20 7f eb 0b 00 00' | xxd -r -p | puft 2> /dev/null || test $$? -eq 246
+ @echo '0b 00 00' | xxd -r -p | puft -f 2>&1 | cat > /dev/null
+ @echo '1a 07' | xxd -r -p | puft 2> /dev/null || test $$? -eq 246
+ @echo '0c c0 81 00 00 00 00 00 90 ff 6b 04' | xxd -r -p | puft 2> /dev/null || test $$? -eq 245
+ @puft -f zeros.raw 2>&1 | cat > /dev/null
+ @echo 'fc 00 00' | xxd -r -p | puft 2> /dev/null || test $$? -eq 253
+ @echo '04 00 fe ff' | xxd -r -p | puft 2> /dev/null || test $$? -eq 252
+ @echo '04 00 24 49' | xxd -r -p | puft 2> /dev/null || test $$? -eq 251
+ @echo '04 80 49 92 24 49 92 24 0f b4 ff ff c3 84' | xxd -r -p | puft 2> /dev/null || test $$? -eq 248
+ @echo '04 00 24 e9 ff ff' | xxd -r -p | puft 2> /dev/null || test $$? -eq 250
+ @echo '04 00 24 e9 ff 6d' | xxd -r -p | puft 2> /dev/null || test $$? -eq 247
+ @gcov -n puff.c
+
clean:
- rm -f puff puff.o
+ rm -f puff puft *.o *.gc*
diff --git a/contrib/puff/puff.c b/contrib/puff/puff.c
index 650694e..df8470c 100644
--- a/contrib/puff/puff.c
+++ b/contrib/puff/puff.c
@@ -2,7 +2,7 @@
* puff.c
* Copyright (C) 2002-2010 Mark Adler
* For conditions of distribution and use, see copyright notice in puff.h
- * version 2.1, 4 Apr 2010
+ * version 2.2, 25 Apr 2010
*
* puff.c is a simple inflate written to be an unambiguous way to specify the
* deflate format. It is not written for speed but rather simplicity. As a
@@ -49,9 +49,9 @@
* - Fix fixed codes table error
* - Provide a scanning mode for determining size of
* uncompressed data
- * 1.3 20 Mar 2002 - Go back to lengths for puff() parameters [Jean-loup]
+ * 1.3 20 Mar 2002 - Go back to lengths for puff() parameters [Gailly]
* - Add a puff.h file for the interface
- * - Add braces in puff() for else do [Jean-loup]
+ * - Add braces in puff() for else do [Gailly]
* - Use indexes instead of pointers for readability
* 1.4 31 Mar 2002 - Simplify construct() code set check
* - Fix some comments
@@ -69,13 +69,19 @@
* - Allow TEST code to read from piped stdin
* 2.1 4 Apr 2010 - Avoid variable initialization for happier compilers
* - Avoid unsigned comparisons for even happier compilers
+ * 2.2 25 Apr 2010 - Fix bug in variable initializations [Oberhumer]
+ * - Add const where appropriate [Oberhumer]
+ * - Split if's and ?'s for coverage testing
+ * - Break out test code to separate file
+ * - Move NIL to puff.h
+ * - Allow incomplete code only if single code length is 1
+ * - Add full code coverage test to Makefile
*/
#include <setjmp.h> /* for setjmp(), longjmp(), and jmp_buf */
#include "puff.h" /* prototype for puff() */
#define local static /* for local function definitions */
-#define NIL ((unsigned char *)0) /* for no output option */
/*
* Maximums for allocations and loops. It is not useful to change these --
@@ -95,7 +101,7 @@
unsigned long outcnt; /* bytes written to out so far */
/* input state */
- unsigned char *in; /* input buffer */
+ const unsigned char *in; /* input buffer */
unsigned long inlen; /* available input at in */
unsigned long incnt; /* bytes read so far */
int bitbuf; /* bit buffer */
@@ -123,7 +129,8 @@
/* load at least need bits into val */
val = s->bitbuf;
while (s->bitcnt < need) {
- if (s->incnt == s->inlen) longjmp(s->env, 1); /* out of input */
+ if (s->incnt == s->inlen)
+ longjmp(s->env, 1); /* out of input */
val |= (long)(s->in[s->incnt++]) << s->bitcnt; /* load eight bits */
s->bitcnt += 8;
}
@@ -162,7 +169,8 @@
s->bitcnt = 0;
/* get length and check against its one's complement */
- if (s->incnt + 4 > s->inlen) return 2; /* not enough input */
+ if (s->incnt + 4 > s->inlen)
+ return 2; /* not enough input */
len = s->in[s->incnt++];
len |= s->in[s->incnt++] << 8;
if (s->in[s->incnt++] != (~len & 0xff) ||
@@ -170,7 +178,8 @@
return -2; /* didn't match complement! */
/* copy len bytes from in to out */
- if (s->incnt + len > s->inlen) return 2; /* not enough input */
+ if (s->incnt + len > s->inlen)
+ return 2; /* not enough input */
if (s->out != NIL) {
if (s->outcnt + len > s->outlen)
return 1; /* not enough output space */
@@ -222,7 +231,7 @@
* in the deflate format. See the format notes for fixed() and dynamic().
*/
#ifdef SLOW
-local int decode(struct state *s, struct huffman *h)
+local int decode(struct state *s, const struct huffman *h)
{
int len; /* current number of bits in code */
int code; /* len bits being decoded */
@@ -250,7 +259,7 @@
* a few percent larger.
*/
#else /* !SLOW */
-local int decode(struct state *s, struct huffman *h)
+local int decode(struct state *s, const struct huffman *h)
{
int len; /* current number of bits in code */
int code; /* len bits being decoded */
@@ -283,10 +292,13 @@
len++;
}
left = (MAXBITS+1) - len;
- if (left == 0) break;
- if (s->incnt == s->inlen) longjmp(s->env, 1); /* out of input */
+ if (left == 0)
+ break;
+ if (s->incnt == s->inlen)
+ longjmp(s->env, 1); /* out of input */
bitbuf = s->in[s->incnt++];
- if (left > 8) left = 8;
+ if (left > 8)
+ left = 8;
}
return -10; /* ran out of codes */
}
@@ -324,7 +336,7 @@
* - Within a given code length, the symbols are kept in ascending order for
* the code bits definition.
*/
-local int construct(struct huffman *h, short *length, int n)
+local int construct(struct huffman *h, const short *length, int n)
{
int symbol; /* current symbol when stepping through length[] */
int len; /* current length when stepping through h->count[] */
@@ -344,7 +356,8 @@
for (len = 1; len <= MAXBITS; len++) {
left <<= 1; /* one more bit, double codes left */
left -= h->count[len]; /* deduct count from possible codes */
- if (left < 0) return left; /* over-subscribed--return negative */
+ if (left < 0)
+ return left; /* over-subscribed--return negative */
} /* left > 0 means incomplete */
/* generate offsets into symbol table for each length for sorting */
@@ -420,8 +433,8 @@
* defined to do the wrong thing in this case.
*/
local int codes(struct state *s,
- struct huffman *lencode,
- struct huffman *distcode)
+ const struct huffman *lencode,
+ const struct huffman *distcode)
{
int symbol; /* decoded symbol */
int len; /* length for copy */
@@ -444,11 +457,13 @@
/* decode literals and length/distance pairs */
do {
symbol = decode(s, lencode);
- if (symbol < 0) return symbol; /* invalid symbol */
+ if (symbol < 0)
+ return symbol; /* invalid symbol */
if (symbol < 256) { /* literal: symbol is the byte */
/* write out the literal */
if (s->out != NIL) {
- if (s->outcnt == s->outlen) return 1;
+ if (s->outcnt == s->outlen)
+ return 1;
s->out[s->outcnt] = symbol;
}
s->outcnt++;
@@ -456,12 +471,14 @@
else if (symbol > 256) { /* length */
/* get and compute length */
symbol -= 257;
- if (symbol >= 29) return -10; /* invalid fixed code */
+ if (symbol >= 29)
+ return -10; /* invalid fixed code */
len = lens[symbol] + bits(s, lext[symbol]);
/* get and check distance */
symbol = decode(s, distcode);
- if (symbol < 0) return symbol; /* invalid symbol */
+ if (symbol < 0)
+ return symbol; /* invalid symbol */
dist = dists[symbol] + bits(s, dext[symbol]);
#ifndef INFLATE_ALLOW_INVALID_DISTANCE_TOOFAR_ARRR
if (dist > s->outcnt)
@@ -470,13 +487,15 @@
/* copy length bytes from distance bytes back */
if (s->out != NIL) {
- if (s->outcnt + len > s->outlen) return 1;
+ if (s->outcnt + len > s->outlen)
+ return 1;
while (len--) {
s->out[s->outcnt] =
#ifdef INFLATE_ALLOW_INVALID_DISTANCE_TOOFAR_ARRR
- dist > s->outcnt ? 0 :
+ dist > s->outcnt ?
+ 0 :
#endif
- s->out[s->outcnt - dist];
+ s->out[s->outcnt - dist];
s->outcnt++;
}
}
@@ -525,6 +544,12 @@
int symbol;
short lengths[FIXLCODES];
+ /* construct lencode and distcode */
+ lencode.count = lencnt;
+ lencode.symbol = lensym;
+ distcode.count = distcnt;
+ distcode.symbol = distsym;
+
/* literal/length table */
for (symbol = 0; symbol < 144; symbol++)
lengths[symbol] = 8;
@@ -541,12 +566,6 @@
lengths[symbol] = 5;
construct(&distcode, lengths, MAXDCODES);
- /* construct lencode and distcode */
- lencode.count = lencnt;
- lencode.symbol = lensym;
- distcode.count = distcnt;
- distcode.symbol = distsym;
-
/* do this just once */
virgin = 0;
}
@@ -675,7 +694,8 @@
/* build huffman table for code lengths codes (use lencode temporarily) */
err = construct(&lencode, lengths, 19);
- if (err != 0) return -4; /* require complete code set here */
+ if (err != 0) /* require complete code set here */
+ return -4;
/* read length/literal and distance code length tables */
index = 0;
@@ -689,7 +709,8 @@
else { /* repeat instruction */
len = 0; /* assume repeating zeros */
if (symbol == 16) { /* repeat last length 3..6 times */
- if (index == 0) return -5; /* no last length! */
+ if (index == 0)
+ return -5; /* no last length! */
len = lengths[index - 1]; /* last length */
symbol = 3 + bits(s, 2);
}
@@ -710,13 +731,13 @@
/* build huffman table for literal/length codes */
err = construct(&lencode, lengths, nlen);
- if (err < 0 || (err > 0 && nlen - lencode.count[0] != 1))
- return -7; /* only allow incomplete codes if just one code */
+ if (err && (err < 0 || nlen != lencode.count[0] + lencode.count[1]))
+ return -7; /* incomplete code ok only for single length 1 code */
/* build huffman table for distance codes */
err = construct(&distcode, lengths + nlen, ndist);
- if (err < 0 || (err > 0 && ndist - distcode.count[0] != 1))
- return -8; /* only allow incomplete codes if just one code */
+ if (err && (err < 0 || ndist != distcode.count[0] + distcode.count[1]))
+ return -8; /* incomplete code ok only for single length 1 code */
/* decode data until end-of-block code */
return codes(s, &lencode, &distcode);
@@ -768,7 +789,7 @@
*/
int puff(unsigned char *dest, /* pointer to destination pointer */
unsigned long *destlen, /* amount of output space */
- unsigned char *source, /* pointer to source data pointer */
+ const unsigned char *source, /* pointer to source data pointer */
unsigned long *sourcelen) /* amount of input available */
{
struct state s; /* input/output state */
@@ -795,11 +816,15 @@
do {
last = bits(&s, 1); /* one if last block */
type = bits(&s, 2); /* block type 0..3 */
- err = type == 0 ? stored(&s) :
- (type == 1 ? fixed(&s) :
- (type == 2 ? dynamic(&s) :
- -1)); /* type == 3, invalid */
- if (err != 0) break; /* return with error */
+ err = type == 0 ?
+ stored(&s) :
+ (type == 1 ?
+ fixed(&s) :
+ (type == 2 ?
+ dynamic(&s) :
+ -1)); /* type == 3, invalid */
+ if (err != 0)
+ break; /* return with error */
} while (!last);
}
@@ -810,146 +835,3 @@
}
return err;
}
-
-#ifdef TEST
-/* Examples of how to use puff().
-
- Usage: puff [-w] [-nnn] file
- ... | puff [-w] [-nnn]
-
- where file is the input file with deflate data, nnn is the number of bytes
- of input to skip before inflating (e.g. to skip a zlib or gzip header), and
- -w is used to write the decompressed data to stdout */
-
-#include <stdio.h>
-#include <stdlib.h>
-
-/* Return size times approximately the cube root of 2, keeping the result as 1,
- 3, or 5 times a power of 2 -- the result is always > size, until the result
- is the maximum value of an unsigned long, where it remains. This is useful
- to keep reallocations less than ~33% over the actual data. */
-local size_t bythirds(size_t size)
-{
- int n;
- size_t m;
-
- m = size;
- for (n = 0; m; n++)
- m >>= 1;
- if (n < 3)
- return size + 1;
- n -= 3;
- m = size >> n;
- m += m == 6 ? 2 : 1;
- m <<= n;
- return m > size ? m : (size_t)(-1);
-}
-
-/* Read the input file *name, or stdin if name is NULL, into allocated memory.
- Reallocate to larger buffers until the entire file is read in. Return a
- pointer to the allocated data, or NULL if there was a memory allocation
- failure. *len is the number of bytes of data read from the input file (even
- if load() returns NULL). If the input file was empty or could not be opened
- or read, *len is zero. */
-local void *load(char *name, size_t *len)
-{
- size_t size;
- void *buf, *swap;
- FILE *in;
-
- *len = 0;
- buf = malloc(size = 4096);
- if (buf == NULL)
- return NULL;
- in = name == NULL ? stdin : fopen(name, "rb");
- if (in != NULL) {
- for (;;) {
- *len += fread((char *)buf + *len, 1, size - *len, in);
- if (*len < size) break;
- size = bythirds(size);
- if (size == *len || (swap = realloc(buf, size)) == NULL) {
- free(buf);
- buf = NULL;
- break;
- }
- buf = swap;
- }
- fclose(in);
- }
- return buf;
-}
-
-int main(int argc, char **argv)
-{
- int ret, put = 0;
- unsigned skip = 0;
- char *arg, *name = NULL;
- unsigned char *source = NULL, *dest;
- size_t len = 0;
- unsigned long sourcelen, destlen;
-
- /* process arguments */
- while (arg = *++argv, --argc)
- if (arg[0] == '-') {
- if (arg[1] == 'w' && arg[2] == 0)
- put = 1;
- else if (arg[1] >= '0' && arg[1] <= '9')
- skip = (unsigned)atoi(arg + 1);
- else {
- fprintf(stderr, "invalid option %s\n", arg);
- return 3;
- }
- }
- else if (name != NULL) {
- fprintf(stderr, "only one file name allowed\n");
- return 3;
- }
- else
- name = arg;
- source = load(name, &len);
- if (source == NULL) {
- fprintf(stderr, "memory allocation failure\n");
- return 4;
- }
- if (len == 0) {
- fprintf(stderr, "could not read %s, or it was empty\n",
- name == NULL ? "<stdin>" : name);
- free(source);
- return 3;
- }
- if (skip >= len) {
- fprintf(stderr, "skip request of %d leaves no input\n", skip);
- free(source);
- return 3;
- }
-
- /* test inflate data with offset skip */
- len -= skip;
- sourcelen = (unsigned long)len;
- ret = puff(NIL, &destlen, source + skip, &sourcelen);
- if (ret)
- fprintf(stderr, "puff() failed with return code %d\n", ret);
- else {
- fprintf(stderr, "puff() succeeded uncompressing %lu bytes\n", destlen);
- if (sourcelen < len) fprintf(stderr, "%lu compressed bytes unused\n",
- len - sourcelen);
- }
-
- /* if requested, inflate again and write decompressd data to stdout */
- if (put) {
- dest = malloc(destlen);
- if (dest == NULL) {
- fprintf(stderr, "memory allocation failure\n");
- free(source);
- return 4;
- }
- puff(dest, &destlen, source + skip, &sourcelen);
- fwrite(dest, 1, destlen, stdout);
- free(dest);
- }
-
- /* clean up */
- free(source);
- return ret;
-}
-#endif
diff --git a/contrib/puff/puff.h b/contrib/puff/puff.h
index 88d1b38..6a0080a 100644
--- a/contrib/puff/puff.h
+++ b/contrib/puff/puff.h
@@ -1,6 +1,6 @@
/* puff.h
Copyright (C) 2002-2010 Mark Adler, all rights reserved
- version 2.1, 4 Apr 2010
+ version 2.2, 25 Apr 2010
This software is provided 'as-is', without any express or implied
warranty. In no event will the author be held liable for any damages
@@ -25,7 +25,11 @@
/*
* See puff.c for purpose and usage.
*/
+#ifndef NIL
+# define NIL ((unsigned char *)0) /* for no output option */
+#endif
+
int puff(unsigned char *dest, /* pointer to destination pointer */
unsigned long *destlen, /* amount of output space */
- unsigned char *source, /* pointer to source data pointer */
+ const unsigned char *source, /* pointer to source data pointer */
unsigned long *sourcelen); /* amount of input available */
diff --git a/contrib/puff/pufftest.c b/contrib/puff/pufftest.c
new file mode 100644
index 0000000..76e35f6
--- /dev/null
+++ b/contrib/puff/pufftest.c
@@ -0,0 +1,165 @@
+/*
+ * pufftest.c
+ * Copyright (C) 2002-2010 Mark Adler
+ * For conditions of distribution and use, see copyright notice in puff.h
+ * version 2.2, 25 Apr 2010
+ */
+
+/* Example of how to use puff().
+
+ Usage: puff [-w] [-f] [-nnn] file
+ ... | puff [-w] [-f] [-nnn]
+
+ where file is the input file with deflate data, nnn is the number of bytes
+ of input to skip before inflating (e.g. to skip a zlib or gzip header), and
+ -w is used to write the decompressed data to stdout. -f is for coverage
+ testing, and causes pufftest to fail with not enough output space (-f does
+ a write like -w, so -w is not required). */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include "puff.h"
+
+#if defined(MSDOS) || defined(OS2) || defined(WIN32) || defined(__CYGWIN__)
+# include <fcntl.h>
+# include <io.h>
+# define SET_BINARY_MODE(file) setmode(fileno(file), O_BINARY)
+#else
+# define SET_BINARY_MODE(file)
+#endif
+
+#define local static
+
+/* Return size times approximately the cube root of 2, keeping the result as 1,
+ 3, or 5 times a power of 2 -- the result is always > size, until the result
+ is the maximum value of an unsigned long, where it remains. This is useful
+ to keep reallocations less than ~33% over the actual data. */
+local size_t bythirds(size_t size)
+{
+ int n;
+ size_t m;
+
+ m = size;
+ for (n = 0; m; n++)
+ m >>= 1;
+ if (n < 3)
+ return size + 1;
+ n -= 3;
+ m = size >> n;
+ m += m == 6 ? 2 : 1;
+ m <<= n;
+ return m > size ? m : (size_t)(-1);
+}
+
+/* Read the input file *name, or stdin if name is NULL, into allocated memory.
+ Reallocate to larger buffers until the entire file is read in. Return a
+ pointer to the allocated data, or NULL if there was a memory allocation
+ failure. *len is the number of bytes of data read from the input file (even
+ if load() returns NULL). If the input file was empty or could not be opened
+ or read, *len is zero. */
+local void *load(const char *name, size_t *len)
+{
+ size_t size;
+ void *buf, *swap;
+ FILE *in;
+
+ *len = 0;
+ buf = malloc(size = 4096);
+ if (buf == NULL)
+ return NULL;
+ in = name == NULL ? stdin : fopen(name, "rb");
+ if (in != NULL) {
+ for (;;) {
+ *len += fread((char *)buf + *len, 1, size - *len, in);
+ if (*len < size) break;
+ size = bythirds(size);
+ if (size == *len || (swap = realloc(buf, size)) == NULL) {
+ free(buf);
+ buf = NULL;
+ break;
+ }
+ buf = swap;
+ }
+ fclose(in);
+ }
+ return buf;
+}
+
+int main(int argc, char **argv)
+{
+ int ret, put = 0, fail = 0;
+ unsigned skip = 0;
+ char *arg, *name = NULL;
+ unsigned char *source = NULL, *dest;
+ size_t len = 0;
+ unsigned long sourcelen, destlen;
+
+ /* process arguments */
+ while (arg = *++argv, --argc)
+ if (arg[0] == '-') {
+ if (arg[1] == 'w' && arg[2] == 0)
+ put = 1;
+ else if (arg[1] == 'f' && arg[2] == 0)
+ fail = 1, put = 1;
+ else if (arg[1] >= '0' && arg[1] <= '9')
+ skip = (unsigned)atoi(arg + 1);
+ else {
+ fprintf(stderr, "invalid option %s\n", arg);
+ return 3;
+ }
+ }
+ else if (name != NULL) {
+ fprintf(stderr, "only one file name allowed\n");
+ return 3;
+ }
+ else
+ name = arg;
+ source = load(name, &len);
+ if (source == NULL) {
+ fprintf(stderr, "memory allocation failure\n");
+ return 4;
+ }
+ if (len == 0) {
+ fprintf(stderr, "could not read %s, or it was empty\n",
+ name == NULL ? "<stdin>" : name);
+ free(source);
+ return 3;
+ }
+ if (skip >= len) {
+ fprintf(stderr, "skip request of %d leaves no input\n", skip);
+ free(source);
+ return 3;
+ }
+
+ /* test inflate data with offset skip */
+ len -= skip;
+ sourcelen = (unsigned long)len;
+ ret = puff(NIL, &destlen, source + skip, &sourcelen);
+ if (ret)
+ fprintf(stderr, "puff() failed with return code %d\n", ret);
+ else {
+ fprintf(stderr, "puff() succeeded uncompressing %lu bytes\n", destlen);
+ if (sourcelen < len) fprintf(stderr, "%lu compressed bytes unused\n",
+ len - sourcelen);
+ }
+
+ /* if requested, inflate again and write decompressd data to stdout */
+ if (put && ret == 0) {
+ if (fail)
+ destlen >>= 1;
+ dest = malloc(destlen);
+ if (dest == NULL) {
+ fprintf(stderr, "memory allocation failure\n");
+ free(source);
+ return 4;
+ }
+ puff(dest, &destlen, source + skip, &sourcelen);
+ SET_BINARY_MODE(stdout);
+ fwrite(dest, 1, destlen, stdout);
+ free(dest);
+ }
+
+ /* clean up */
+ free(source);
+ return ret;
+}
diff --git a/contrib/puff/zeros.raw b/contrib/puff/zeros.raw
index 637b7be..0a90e76 100644
--- a/contrib/puff/zeros.raw
+++ b/contrib/puff/zeros.raw
Binary files differ
diff --git a/contrib/vstudio/vc10/zlib.rc b/contrib/vstudio/vc10/zlib.rc
index f822450..8f22fab 100644
--- a/contrib/vstudio/vc10/zlib.rc
+++ b/contrib/vstudio/vc10/zlib.rc
@@ -2,8 +2,8 @@
#define IDR_VERSION1 1
IDR_VERSION1 VERSIONINFO MOVEABLE IMPURE LOADONCALL DISCARDABLE
- FILEVERSION 1,2,5,0
- PRODUCTVERSION 1,2,5,0
+ FILEVERSION 1.2.6,1
+ PRODUCTVERSION 1.2.6,1
FILEFLAGSMASK VS_FFI_FILEFLAGSMASK
FILEFLAGS 0
FILEOS VOS_DOS_WINDOWS32
@@ -17,12 +17,12 @@
BEGIN
VALUE "FileDescription", "zlib data compression and ZIP file I/O library\0"
- VALUE "FileVersion", "1.2.5\0"
+ VALUE "FileVersion", "1.2.6\0"
VALUE "InternalName", "zlib\0"
VALUE "OriginalFilename", "zlib.dll\0"
VALUE "ProductName", "ZLib.DLL\0"
VALUE "Comments","DLL support by Alessandro Iacopetti & Gilles Vollant\0"
- VALUE "LegalCopyright", "(C) 1995-2010 Jean-loup Gailly & Mark Adler\0"
+ VALUE "LegalCopyright", "(C) 1995-2012 Jean-loup Gailly & Mark Adler\0"
END
END
BLOCK "VarFileInfo"
diff --git a/contrib/vstudio/vc10/zlibvc.def b/contrib/vstudio/vc10/zlibvc.def
index 0269ef7..571b0a6 100644
--- a/contrib/vstudio/vc10/zlibvc.def
+++ b/contrib/vstudio/vc10/zlibvc.def
@@ -55,6 +55,7 @@
gzungetc @49
zlibCompileFlags @50
deflatePrime @51
+ deflatePending @52
unzOpen @61
unzClose @62
@@ -128,3 +129,9 @@
inflatePrime @158
inflateReset2 @159
inflateUndermine @160
+
+; zlib1 v1.2.6 added:
+ gzgetc_ @161
+ gzflags @162
+ inflateResetKeep @163
+ deflateResetKeep @164
diff --git a/contrib/vstudio/vc9/zlib.rc b/contrib/vstudio/vc9/zlib.rc
index f822450..8f22fab 100644
--- a/contrib/vstudio/vc9/zlib.rc
+++ b/contrib/vstudio/vc9/zlib.rc
@@ -2,8 +2,8 @@
#define IDR_VERSION1 1
IDR_VERSION1 VERSIONINFO MOVEABLE IMPURE LOADONCALL DISCARDABLE
- FILEVERSION 1,2,5,0
- PRODUCTVERSION 1,2,5,0
+ FILEVERSION 1.2.6,1
+ PRODUCTVERSION 1.2.6,1
FILEFLAGSMASK VS_FFI_FILEFLAGSMASK
FILEFLAGS 0
FILEOS VOS_DOS_WINDOWS32
@@ -17,12 +17,12 @@
BEGIN
VALUE "FileDescription", "zlib data compression and ZIP file I/O library\0"
- VALUE "FileVersion", "1.2.5\0"
+ VALUE "FileVersion", "1.2.6\0"
VALUE "InternalName", "zlib\0"
VALUE "OriginalFilename", "zlib.dll\0"
VALUE "ProductName", "ZLib.DLL\0"
VALUE "Comments","DLL support by Alessandro Iacopetti & Gilles Vollant\0"
- VALUE "LegalCopyright", "(C) 1995-2010 Jean-loup Gailly & Mark Adler\0"
+ VALUE "LegalCopyright", "(C) 1995-2012 Jean-loup Gailly & Mark Adler\0"
END
END
BLOCK "VarFileInfo"
diff --git a/contrib/vstudio/vc9/zlibvc.def b/contrib/vstudio/vc9/zlibvc.def
index 0269ef7..571b0a6 100644
--- a/contrib/vstudio/vc9/zlibvc.def
+++ b/contrib/vstudio/vc9/zlibvc.def
@@ -55,6 +55,7 @@
gzungetc @49
zlibCompileFlags @50
deflatePrime @51
+ deflatePending @52
unzOpen @61
unzClose @62
@@ -128,3 +129,9 @@
inflatePrime @158
inflateReset2 @159
inflateUndermine @160
+
+; zlib1 v1.2.6 added:
+ gzgetc_ @161
+ gzflags @162
+ inflateResetKeep @163
+ deflateResetKeep @164
diff --git a/crc32.c b/crc32.c
index 91be372..c12471e 100644
--- a/crc32.c
+++ b/crc32.c
@@ -1,5 +1,5 @@
/* crc32.c -- compute the CRC-32 of a data stream
- * Copyright (C) 1995-2006, 2010 Mark Adler
+ * Copyright (C) 1995-2006, 2010, 2011 Mark Adler
* For conditions of distribution and use, see copyright notice in zlib.h
*
* Thanks to Rodney Brown <rbrown64@csc.com.au> for his contribution of faster
@@ -17,6 +17,8 @@
of the crc tables. Therefore, if you #define DYNAMIC_CRC_TABLE, you should
first call get_crc_table() to initialize the tables before allowing more than
one thread to use crc32().
+
+ DYNAMIC_CRC_TABLE and MAKECRCH can be #defined to write out crc32.h.
*/
#ifdef MAKECRCH
@@ -53,6 +55,7 @@
/* Definitions for doing the crc four data bytes at a time. */
#ifdef BYFOUR
+ typedef u4 crc_table_t;
# define REV(w) ((((w)>>24)&0xff)+(((w)>>8)&0xff00)+ \
(((w)&0xff00)<<8)+(((w)&0xff)<<24))
local unsigned long crc32_little OF((unsigned long,
@@ -61,6 +64,7 @@
const unsigned char FAR *, unsigned));
# define TBLS 8
#else
+ typedef unsigned long crc_table_t;
# define TBLS 1
#endif /* BYFOUR */
@@ -68,16 +72,16 @@
local unsigned long gf2_matrix_times OF((unsigned long *mat,
unsigned long vec));
local void gf2_matrix_square OF((unsigned long *square, unsigned long *mat));
-local uLong crc32_combine_(uLong crc1, uLong crc2, z_off64_t len2);
+local uLong crc32_combine_ OF((uLong crc1, uLong crc2, z_off64_t len2));
#ifdef DYNAMIC_CRC_TABLE
local volatile int crc_table_empty = 1;
-local unsigned long FAR crc_table[TBLS][256];
+local crc_table_t FAR crc_table[TBLS][256];
local void make_crc_table OF((void));
#ifdef MAKECRCH
- local void write_table OF((FILE *, const unsigned long FAR *));
+ local void write_table OF((FILE *, const crc_table_t FAR *));
#endif /* MAKECRCH */
/*
Generate tables for a byte-wise 32-bit CRC calculation on the polynomial:
@@ -107,9 +111,9 @@
*/
local void make_crc_table()
{
- unsigned long c;
+ crc_table_t c;
int n, k;
- unsigned long poly; /* polynomial exclusive-or pattern */
+ crc_table_t poly; /* polynomial exclusive-or pattern */
/* terms of polynomial defining this crc (except x^32): */
static volatile int first = 1; /* flag to limit concurrent making */
static const unsigned char p[] = {0,1,2,4,5,7,8,10,11,12,16,22,23,26};
@@ -121,13 +125,13 @@
first = 0;
/* make exclusive-or pattern from polynomial (0xedb88320UL) */
- poly = 0UL;
- for (n = 0; n < sizeof(p)/sizeof(unsigned char); n++)
- poly |= 1UL << (31 - p[n]);
+ poly = 0;
+ for (n = 0; n < (int)(sizeof(p)/sizeof(unsigned char)); n++)
+ poly |= (crc_table_t)1 << (31 - p[n]);
/* generate a crc for every 8-bit value */
for (n = 0; n < 256; n++) {
- c = (unsigned long)n;
+ c = (crc_table_t)n;
for (k = 0; k < 8; k++)
c = c & 1 ? poly ^ (c >> 1) : c >> 1;
crc_table[0][n] = c;
@@ -164,7 +168,7 @@
if (out == NULL) return;
fprintf(out, "/* crc32.h -- tables for rapid CRC calculation\n");
fprintf(out, " * Generated automatically by crc32.c\n */\n\n");
- fprintf(out, "local const unsigned long FAR ");
+ fprintf(out, "local const crc_table_t FAR ");
fprintf(out, "crc_table[TBLS][256] =\n{\n {\n");
write_table(out, crc_table[0]);
# ifdef BYFOUR
@@ -184,12 +188,13 @@
#ifdef MAKECRCH
local void write_table(out, table)
FILE *out;
- const unsigned long FAR *table;
+ const crc_table_t FAR *table;
{
int n;
for (n = 0; n < 256; n++)
- fprintf(out, "%s0x%08lxUL%s", n % 5 ? "" : " ", table[n],
+ fprintf(out, "%s0x%08lxUL%s", n % 5 ? "" : " ",
+ (unsigned long)(table[n]),
n == 255 ? "\n" : (n % 5 == 4 ? ",\n" : ", "));
}
#endif /* MAKECRCH */
diff --git a/crc32.h b/crc32.h
index 8053b61..c3e7171 100644
--- a/crc32.h
+++ b/crc32.h
@@ -2,7 +2,7 @@
* Generated automatically by crc32.c
*/
-local const unsigned long FAR crc_table[TBLS][256] =
+local const crc_table_t FAR crc_table[TBLS][256] =
{
{
0x00000000UL, 0x77073096UL, 0xee0e612cUL, 0x990951baUL, 0x076dc419UL,
diff --git a/deflate.c b/deflate.c
index 5c4022f..8bd480e 100644
--- a/deflate.c
+++ b/deflate.c
@@ -1,5 +1,5 @@
/* deflate.c -- compress data using the deflation algorithm
- * Copyright (C) 1995-2010 Jean-loup Gailly and Mark Adler
+ * Copyright (C) 1995-2012 Jean-loup Gailly and Mark Adler
* For conditions of distribution and use, see copyright notice in zlib.h
*/
@@ -37,7 +37,7 @@
* REFERENCES
*
* Deutsch, L.P.,"DEFLATE Compressed Data Format Specification".
- * Available in http://www.ietf.org/rfc/rfc1951.txt
+ * Available in http://tools.ietf.org/html/rfc1951
*
* A description of the Rabin and Karp algorithm is given in the book
* "Algorithms" by R. Sedgewick, Addison-Wesley, p252.
@@ -52,7 +52,7 @@
#include "deflate.h"
const char deflate_copyright[] =
- " deflate 1.2.5 Copyright 1995-2010 Jean-loup Gailly and Mark Adler ";
+ " deflate 1.2.6 Copyright 1995-2012 Jean-loup Gailly and 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
@@ -155,6 +155,9 @@
struct static_tree_desc_s {int dummy;}; /* for buggy compilers */
#endif
+/* rank Z_BLOCK between Z_NO_FLUSH and Z_PARTIAL_FLUSH */
+#define RANK(f) (((f) << 1) - ((f) > 4 ? 9 : 0))
+
/* ===========================================================================
* Update a hash value with the given input byte
* IN assertion: all calls to to UPDATE_HASH are made with consecutive
@@ -235,10 +238,19 @@
strm->msg = Z_NULL;
if (strm->zalloc == (alloc_func)0) {
+#ifdef Z_SOLO
+ return Z_STREAM_ERROR;
+#else
strm->zalloc = zcalloc;
strm->opaque = (voidpf)0;
+#endif
}
- if (strm->zfree == (free_func)0) strm->zfree = zcfree;
+ if (strm->zfree == (free_func)0)
+#ifdef Z_SOLO
+ return Z_STREAM_ERROR;
+#else
+ strm->zfree = zcfree;
+#endif
#ifdef FASTEST
if (level != 0) level = 1;
@@ -314,43 +326,70 @@
uInt dictLength;
{
deflate_state *s;
- uInt length = dictLength;
- uInt n;
- IPos hash_head = 0;
+ uInt str, n;
+ int wrap;
+ unsigned avail;
+ unsigned char *next;
- if (strm == Z_NULL || strm->state == Z_NULL || dictionary == Z_NULL ||
- strm->state->wrap == 2 ||
- (strm->state->wrap == 1 && strm->state->status != INIT_STATE))
+ if (strm == Z_NULL || strm->state == Z_NULL || dictionary == Z_NULL)
+ return Z_STREAM_ERROR;
+ s = strm->state;
+ wrap = s->wrap;
+ if (wrap == 2 || (wrap == 1 && s->status != INIT_STATE) || s->lookahead)
return Z_STREAM_ERROR;
- s = strm->state;
- if (s->wrap)
+ /* when using zlib wrappers, compute Adler-32 for provided dictionary */
+ if (wrap == 1)
strm->adler = adler32(strm->adler, dictionary, dictLength);
+ s->wrap = 0; /* avoid computing Adler-32 in read_buf */
- if (length < MIN_MATCH) return Z_OK;
- if (length > s->w_size) {
- length = s->w_size;
- dictionary += dictLength - length; /* use the tail of the dictionary */
+ /* if dictionary would fill window, just replace the history */
+ if (dictLength >= s->w_size) {
+ if (wrap == 0) { /* already empty otherwise */
+ CLEAR_HASH(s);
+ s->strstart = 0;
+ s->block_start = 0L;
+ s->insert = 0;
+ }
+ dictionary += dictLength - s->w_size; /* use the tail */
+ dictLength = s->w_size;
}
- zmemcpy(s->window, dictionary, length);
- s->strstart = length;
- s->block_start = (long)length;
- /* Insert all strings in the hash table (except for the last two bytes).
- * s->lookahead stays null, so s->ins_h will be recomputed at the next
- * call of fill_window.
- */
- s->ins_h = s->window[0];
- UPDATE_HASH(s, s->ins_h, s->window[1]);
- for (n = 0; n <= length - MIN_MATCH; n++) {
- INSERT_STRING(s, n, hash_head);
+ /* insert dictionary into window and hash */
+ avail = strm->avail_in;
+ next = strm->next_in;
+ strm->avail_in = dictLength;
+ strm->next_in = (Bytef *)dictionary;
+ fill_window(s);
+ while (s->lookahead >= MIN_MATCH) {
+ str = s->strstart;
+ n = s->lookahead - (MIN_MATCH-1);
+ do {
+ UPDATE_HASH(s, s->ins_h, s->window[str + MIN_MATCH-1]);
+#ifndef FASTEST
+ s->prev[str & s->w_mask] = s->head[s->ins_h];
+#endif
+ s->head[s->ins_h] = (Pos)str;
+ str++;
+ } while (--n);
+ s->strstart = str;
+ s->lookahead = MIN_MATCH-1;
+ fill_window(s);
}
- if (hash_head) hash_head = 0; /* to make compiler happy */
+ s->strstart += s->lookahead;
+ s->block_start = (long)s->strstart;
+ s->insert = s->lookahead;
+ s->lookahead = 0;
+ s->match_length = s->prev_length = MIN_MATCH-1;
+ s->match_available = 0;
+ strm->next_in = next;
+ strm->avail_in = avail;
+ s->wrap = wrap;
return Z_OK;
}
/* ========================================================================= */
-int ZEXPORT deflateReset (strm)
+int ZEXPORT deflateResetKeep (strm)
z_streamp strm;
{
deflate_state *s;
@@ -380,12 +419,23 @@
s->last_flush = Z_NO_FLUSH;
_tr_init(s);
- lm_init(s);
return Z_OK;
}
/* ========================================================================= */
+int ZEXPORT deflateReset (strm)
+ z_streamp strm;
+{
+ int ret;
+
+ ret = deflateResetKeep(strm);
+ if (ret == Z_OK)
+ lm_init(strm->state);
+ return ret;
+}
+
+/* ========================================================================= */
int ZEXPORT deflateSetHeader (strm, head)
z_streamp strm;
gz_headerp head;
@@ -397,14 +447,42 @@
}
/* ========================================================================= */
+int ZEXPORT deflatePending (strm, pending, bits)
+ unsigned *pending;
+ int *bits;
+ z_streamp strm;
+{
+ if (strm == Z_NULL || strm->state == Z_NULL) return Z_STREAM_ERROR;
+ if (pending != Z_NULL)
+ *pending = strm->state->pending;
+ if (bits != Z_NULL)
+ *bits = strm->state->bi_valid;
+ return Z_OK;
+}
+
+/* ========================================================================= */
int ZEXPORT deflatePrime (strm, bits, value)
z_streamp strm;
int bits;
int value;
{
+ deflate_state *s;
+ int put;
+
if (strm == Z_NULL || strm->state == Z_NULL) return Z_STREAM_ERROR;
- strm->state->bi_valid = bits;
- strm->state->bi_buf = (ush)(value & ((1 << bits) - 1));
+ s = strm->state;
+ if ((Bytef *)(s->d_buf) < s->pending_out + ((Buf_size + 7) >> 3))
+ return Z_BUF_ERROR;
+ do {
+ put = Buf_size - s->bi_valid;
+ if (put > bits)
+ put = bits;
+ s->bi_buf |= (ush)((value & ((1 << put) - 1)) << s->bi_valid);
+ s->bi_valid += put;
+ _tr_flush_bits(s);
+ value >>= put;
+ bits -= put;
+ } while (bits);
return Z_OK;
}
@@ -562,19 +640,22 @@
local void flush_pending(strm)
z_streamp strm;
{
- unsigned len = strm->state->pending;
+ unsigned len;
+ deflate_state *s = strm->state;
+ _tr_flush_bits(s);
+ len = s->pending;
if (len > strm->avail_out) len = strm->avail_out;
if (len == 0) return;
- zmemcpy(strm->next_out, strm->state->pending_out, len);
+ zmemcpy(strm->next_out, s->pending_out, len);
strm->next_out += len;
- strm->state->pending_out += len;
+ s->pending_out += len;
strm->total_out += len;
strm->avail_out -= len;
- strm->state->pending -= len;
- if (strm->state->pending == 0) {
- strm->state->pending_out = strm->state->pending_buf;
+ s->pending -= len;
+ if (s->pending == 0) {
+ s->pending_out = s->pending_buf;
}
}
@@ -801,7 +882,7 @@
* flushes. For repeated and useless calls with Z_FINISH, we keep
* returning Z_STREAM_END instead of Z_BUF_ERROR.
*/
- } else if (strm->avail_in == 0 && flush <= old_flush &&
+ } else if (strm->avail_in == 0 && RANK(flush) <= RANK(old_flush) &&
flush != Z_FINISH) {
ERR_RETURN(strm, Z_BUF_ERROR);
}
@@ -850,6 +931,7 @@
if (s->lookahead == 0) {
s->strstart = 0;
s->block_start = 0L;
+ s->insert = 0;
}
}
}
@@ -945,12 +1027,12 @@
ss = source->state;
- zmemcpy(dest, source, sizeof(z_stream));
+ zmemcpy((voidpf)dest, (voidpf)source, sizeof(z_stream));
ds = (deflate_state *) ZALLOC(dest, 1, sizeof(deflate_state));
if (ds == Z_NULL) return Z_MEM_ERROR;
dest->state = (struct internal_state FAR *) ds;
- zmemcpy(ds, ss, sizeof(deflate_state));
+ zmemcpy((voidpf)ds, (voidpf)ss, sizeof(deflate_state));
ds->strm = dest;
ds->window = (Bytef *) ZALLOC(dest, ds->w_size, 2*sizeof(Byte));
@@ -966,8 +1048,8 @@
}
/* following zmemcpy do not work for 16-bit MSDOS */
zmemcpy(ds->window, ss->window, ds->w_size * 2 * sizeof(Byte));
- zmemcpy(ds->prev, ss->prev, ds->w_size * sizeof(Pos));
- zmemcpy(ds->head, ss->head, ds->hash_size * sizeof(Pos));
+ zmemcpy((voidpf)ds->prev, (voidpf)ss->prev, ds->w_size * sizeof(Pos));
+ zmemcpy((voidpf)ds->head, (voidpf)ss->head, ds->hash_size * sizeof(Pos));
zmemcpy(ds->pending_buf, ss->pending_buf, (uInt)ds->pending_buf_size);
ds->pending_out = ds->pending_buf + (ss->pending_out - ss->pending_buf);
@@ -1001,15 +1083,15 @@
strm->avail_in -= len;
+ zmemcpy(buf, strm->next_in, len);
if (strm->state->wrap == 1) {
- strm->adler = adler32(strm->adler, strm->next_in, len);
+ strm->adler = adler32(strm->adler, buf, len);
}
#ifdef GZIP
else if (strm->state->wrap == 2) {
- strm->adler = crc32(strm->adler, strm->next_in, len);
+ strm->adler = crc32(strm->adler, buf, len);
}
#endif
- zmemcpy(buf, strm->next_in, len);
strm->next_in += len;
strm->total_in += len;
@@ -1036,6 +1118,7 @@
s->strstart = 0;
s->block_start = 0L;
s->lookahead = 0;
+ s->insert = 0;
s->match_length = s->prev_length = MIN_MATCH-1;
s->match_available = 0;
s->ins_h = 0;
@@ -1310,6 +1393,8 @@
unsigned more; /* Amount of free space at the end of the window. */
uInt wsize = s->w_size;
+ Assert(s->lookahead < MIN_LOOKAHEAD, "already enough lookahead");
+
do {
more = (unsigned)(s->window_size -(ulg)s->lookahead -(ulg)s->strstart);
@@ -1362,7 +1447,7 @@
#endif
more += wsize;
}
- if (s->strm->avail_in == 0) return;
+ if (s->strm->avail_in == 0) break;
/* If there was no sliding:
* strstart <= WSIZE+MAX_DIST-1 && lookahead <= MIN_LOOKAHEAD - 1 &&
@@ -1381,12 +1466,24 @@
s->lookahead += n;
/* Initialize the hash value now that we have some input: */
- if (s->lookahead >= MIN_MATCH) {
- s->ins_h = s->window[s->strstart];
- UPDATE_HASH(s, s->ins_h, s->window[s->strstart+1]);
+ if (s->lookahead + s->insert >= MIN_MATCH) {
+ uInt str = s->strstart - s->insert;
+ s->ins_h = s->window[str];
+ UPDATE_HASH(s, s->ins_h, s->window[str + 1]);
#if MIN_MATCH != 3
Call UPDATE_HASH() MIN_MATCH-3 more times
#endif
+ while (s->insert) {
+ UPDATE_HASH(s, s->ins_h, s->window[str + MIN_MATCH-1]);
+#ifndef FASTEST
+ s->prev[str & s->w_mask] = s->head[s->ins_h];
+#endif
+ s->head[s->ins_h] = (Pos)str;
+ str++;
+ s->insert--;
+ if (s->lookahead + s->insert < MIN_MATCH)
+ break;
+ }
}
/* If the whole input has less than MIN_MATCH bytes, ins_h is garbage,
* but this is not important since only literal bytes will be emitted.
@@ -1427,6 +1524,9 @@
s->high_water += init;
}
}
+
+ Assert((ulg)s->strstart <= s->window_size - MIN_LOOKAHEAD,
+ "not enough room for search");
}
/* ===========================================================================
@@ -1506,8 +1606,14 @@
FLUSH_BLOCK(s, 0);
}
}
- FLUSH_BLOCK(s, flush == Z_FINISH);
- return flush == Z_FINISH ? finish_done : block_done;
+ s->insert = 0;
+ if (flush == Z_FINISH) {
+ FLUSH_BLOCK(s, 1);
+ return finish_done;
+ }
+ if ((long)s->strstart > s->block_start)
+ FLUSH_BLOCK(s, 0);
+ return block_done;
}
/* ===========================================================================
@@ -1603,8 +1709,14 @@
}
if (bflush) FLUSH_BLOCK(s, 0);
}
- FLUSH_BLOCK(s, flush == Z_FINISH);
- return flush == Z_FINISH ? finish_done : block_done;
+ s->insert = s->strstart < MIN_MATCH-1 ? s->strstart : MIN_MATCH-1;
+ if (flush == Z_FINISH) {
+ FLUSH_BLOCK(s, 1);
+ return finish_done;
+ }
+ if (s->last_lit)
+ FLUSH_BLOCK(s, 0);
+ return block_done;
}
#ifndef FASTEST
@@ -1728,8 +1840,14 @@
_tr_tally_lit(s, s->window[s->strstart-1], bflush);
s->match_available = 0;
}
- FLUSH_BLOCK(s, flush == Z_FINISH);
- return flush == Z_FINISH ? finish_done : block_done;
+ s->insert = s->strstart < MIN_MATCH-1 ? s->strstart : MIN_MATCH-1;
+ if (flush == Z_FINISH) {
+ FLUSH_BLOCK(s, 1);
+ return finish_done;
+ }
+ if (s->last_lit)
+ FLUSH_BLOCK(s, 0);
+ return block_done;
}
#endif /* FASTEST */
@@ -1749,11 +1867,11 @@
for (;;) {
/* Make sure that we always have enough lookahead, except
* at the end of the input file. We need MAX_MATCH bytes
- * for the longest encodable run.
+ * for the longest run, plus one for the unrolled loop.
*/
- if (s->lookahead < MAX_MATCH) {
+ if (s->lookahead <= MAX_MATCH) {
fill_window(s);
- if (s->lookahead < MAX_MATCH && flush == Z_NO_FLUSH) {
+ if (s->lookahead <= MAX_MATCH && flush == Z_NO_FLUSH) {
return need_more;
}
if (s->lookahead == 0) break; /* flush the current block */
@@ -1776,6 +1894,7 @@
if (s->match_length > s->lookahead)
s->match_length = s->lookahead;
}
+ Assert(scan <= s->window+(uInt)(s->window_size-1), "wild scan");
}
/* Emit match if have run of MIN_MATCH or longer, else emit literal */
@@ -1796,8 +1915,14 @@
}
if (bflush) FLUSH_BLOCK(s, 0);
}
- FLUSH_BLOCK(s, flush == Z_FINISH);
- return flush == Z_FINISH ? finish_done : block_done;
+ s->insert = 0;
+ if (flush == Z_FINISH) {
+ FLUSH_BLOCK(s, 1);
+ return finish_done;
+ }
+ if (s->last_lit)
+ FLUSH_BLOCK(s, 0);
+ return block_done;
}
/* ===========================================================================
@@ -1829,6 +1954,12 @@
s->strstart++;
if (bflush) FLUSH_BLOCK(s, 0);
}
- FLUSH_BLOCK(s, flush == Z_FINISH);
- return flush == Z_FINISH ? finish_done : block_done;
+ s->insert = 0;
+ if (flush == Z_FINISH) {
+ FLUSH_BLOCK(s, 1);
+ return finish_done;
+ }
+ if (s->last_lit)
+ FLUSH_BLOCK(s, 0);
+ return block_done;
}
diff --git a/deflate.h b/deflate.h
index cbf0d1e..fbac44d 100644
--- a/deflate.h
+++ b/deflate.h
@@ -1,5 +1,5 @@
/* deflate.h -- internal compression state
- * Copyright (C) 1995-2010 Jean-loup Gailly
+ * Copyright (C) 1995-2012 Jean-loup Gailly
* For conditions of distribution and use, see copyright notice in zlib.h
*/
@@ -48,6 +48,9 @@
#define MAX_BITS 15
/* All codes must not exceed MAX_BITS bits */
+#define Buf_size 16
+/* size of bit buffer in bi_buf */
+
#define INIT_STATE 42
#define EXTRA_STATE 69
#define NAME_STATE 73
@@ -188,7 +191,7 @@
int nice_match; /* Stop searching when current match exceeds this */
/* used by trees.c: */
- /* Didn't use ct_data typedef below to supress compiler warning */
+ /* Didn't use ct_data typedef below to suppress compiler warning */
struct ct_data_s dyn_ltree[HEAP_SIZE]; /* literal and length tree */
struct ct_data_s dyn_dtree[2*D_CODES+1]; /* distance tree */
struct ct_data_s bl_tree[2*BL_CODES+1]; /* Huffman tree for bit lengths */
@@ -244,7 +247,7 @@
ulg opt_len; /* bit length of current block with optimal trees */
ulg static_len; /* bit length of current block with static trees */
uInt matches; /* number of string matches in current block */
- int last_eob_len; /* bit length of EOB code for last block */
+ uInt insert; /* bytes at end of window left to insert */
#ifdef DEBUG
ulg compressed_len; /* total bit length of compressed file mod 2^32 */
@@ -294,6 +297,7 @@
int ZLIB_INTERNAL _tr_tally OF((deflate_state *s, unsigned dist, unsigned lc));
void ZLIB_INTERNAL _tr_flush_block OF((deflate_state *s, charf *buf,
ulg stored_len, int last));
+void ZLIB_INTERNAL _tr_flush_bits OF((deflate_state *s));
void ZLIB_INTERNAL _tr_align OF((deflate_state *s));
void ZLIB_INTERNAL _tr_stored_block OF((deflate_state *s, charf *buf,
ulg stored_len, int last));
diff --git a/doc/algorithm.txt b/doc/algorithm.txt
index 34960bd..c97f495 100644
--- a/doc/algorithm.txt
+++ b/doc/algorithm.txt
@@ -206,4 +206,4 @@
pp. 337-343.
``DEFLATE Compressed Data Format Specification'' available in
-http://www.ietf.org/rfc/rfc1951.txt
+http://tools.ietf.org/html/rfc1951
diff --git a/gzguts.h b/gzguts.h
index 0f8fb79..3107c36 100644
--- a/gzguts.h
+++ b/gzguts.h
@@ -1,5 +1,5 @@
/* gzguts.h -- zlib internal header definitions for gz* operations
- * Copyright (C) 2004, 2005, 2010 Mark Adler
+ * Copyright (C) 2004, 2005, 2010, 2011, 2012 Mark Adler
* For conditions of distribution and use, see copyright notice in zlib.h
*/
@@ -27,13 +27,62 @@
#endif
#include <fcntl.h>
+#ifdef __TURBOC__
+# include <io.h>
+#endif
+
#ifdef NO_DEFLATE /* for compatibility with old definition */
# define NO_GZCOMPRESS
#endif
-#ifdef _MSC_VER
-# include <io.h>
-# define vsnprintf _vsnprintf
+#if defined(STDC99) || (defined(__TURBOC__) && __TURBOC__ >= 0x550)
+# ifndef HAVE_VSNPRINTF
+# define HAVE_VSNPRINTF
+# endif
+#endif
+
+#if defined(__CYGWIN__)
+# ifndef HAVE_VSNPRINTF
+# define HAVE_VSNPRINTF
+# endif
+#endif
+
+#if defined(MSDOS) && defined(__BORLANDC__) && (BORLANDC > 0x410)
+# ifndef HAVE_VSNPRINTF
+# define HAVE_VSNPRINTF
+# endif
+#endif
+
+#ifndef HAVE_VSNPRINTF
+# ifdef MSDOS
+/* vsnprintf may exist on some MS-DOS compilers (DJGPP?),
+ but for now we just assume it doesn't. */
+# define NO_vsnprintf
+# endif
+# ifdef __TURBOC__
+# define NO_vsnprintf
+# endif
+# ifdef WIN32
+/* In Win32, vsnprintf is available as the "non-ANSI" _vsnprintf. */
+# if !defined(vsnprintf) && !defined(NO_vsnprintf)
+# if !defined(_MSC_VER) || ( defined(_MSC_VER) && _MSC_VER < 1500 )
+# include <io.h>
+# define vsnprintf _vsnprintf
+# endif
+# endif
+# endif
+# ifdef __SASC
+# define NO_vsnprintf
+# endif
+# ifdef VMS
+# define NO_vsnprintf
+# endif
+# ifdef __OS400__
+# define NO_vsnprintf
+# endif
+# ifdef __MVS__
+# define NO_vsnprintf
+# endif
#endif
#ifndef local
@@ -68,6 +117,13 @@
ZEXTERN z_off64_t ZEXPORT gzoffset64 OF((gzFile));
#endif
+/* default memLevel */
+#if MAX_MEM_LEVEL >= 8
+# define DEF_MEM_LEVEL 8
+#else
+# define DEF_MEM_LEVEL MAX_MEM_LEVEL
+#endif
+
/* default i/o buffer size -- double this for output when reading */
#define GZBUFSIZE 8192
@@ -84,23 +140,25 @@
/* internal gzip file state data structure */
typedef struct {
+ /* exposed contents for gzgetc() macro */
+ struct gzFile_s x; /* "x" for exposed */
+ /* x.have: number of bytes available at x.next */
+ /* x.next: next output data to deliver or write */
+ /* x.pos: current position in uncompressed data */
/* used for both reading and writing */
int mode; /* see gzip modes above */
int fd; /* file descriptor */
char *path; /* path or fd for error messages */
- z_off64_t pos; /* current position in uncompressed data */
unsigned size; /* buffer size, zero if not allocated yet */
unsigned want; /* requested buffer size, default is GZBUFSIZE */
unsigned char *in; /* input buffer */
unsigned char *out; /* output buffer (double-sized when reading) */
- unsigned char *next; /* next output data to deliver or write */
+ int direct; /* 0 if processing gzip, 1 if transparent */
/* just for reading */
- unsigned have; /* amount of output data unused at next */
- int eof; /* true if end of input file reached */
- z_off64_t start; /* where the gzip data started, for rewinding */
- z_off64_t raw; /* where the raw data started, for seeking */
int how; /* 0: get header, 1: copy, 2: decompress */
- int direct; /* true if last read direct, false if gzip */
+ z_off64_t start; /* where the gzip data started, for rewinding */
+ int eof; /* true if end of input file reached */
+ int past; /* true if read requested past end */
/* just for writing */
int level; /* compression level */
int strategy; /* compression strategy */
diff --git a/gzio.c b/gzio.c
deleted file mode 100644
index 7e90f49..0000000
--- a/gzio.c
+++ /dev/null
@@ -1,1026 +0,0 @@
-/* gzio.c -- IO on .gz files
- * Copyright (C) 1995-2005 Jean-loup Gailly.
- * For conditions of distribution and use, see copyright notice in zlib.h
- *
- * Compile this file with -DNO_GZCOMPRESS to avoid the compression code.
- */
-
-/* @(#) $Id$ */
-
-#include <stdio.h>
-
-#include "zutil.h"
-
-#ifdef NO_DEFLATE /* for compatibility with old definition */
-# define NO_GZCOMPRESS
-#endif
-
-#ifndef NO_DUMMY_DECL
-struct internal_state {int dummy;}; /* for buggy compilers */
-#endif
-
-#ifndef Z_BUFSIZE
-# ifdef MAXSEG_64K
-# define Z_BUFSIZE 4096 /* minimize memory usage for 16-bit DOS */
-# else
-# define Z_BUFSIZE 16384
-# endif
-#endif
-#ifndef Z_PRINTF_BUFSIZE
-# define Z_PRINTF_BUFSIZE 4096
-#endif
-
-#ifdef __MVS__
-# pragma map (fdopen , "\174\174FDOPEN")
- FILE *fdopen(int, const char *);
-#endif
-
-#ifndef STDC
-extern voidp malloc OF((uInt size));
-extern void free OF((voidpf ptr));
-#endif
-
-#define ALLOC(size) malloc(size)
-#define TRYFREE(p) {if (p) free(p);}
-
-static int const gz_magic[2] = {0x1f, 0x8b}; /* gzip magic header */
-
-/* gzip flag byte */
-#define ASCII_FLAG 0x01 /* bit 0 set: file probably ascii text */
-#define HEAD_CRC 0x02 /* bit 1 set: header CRC present */
-#define EXTRA_FIELD 0x04 /* bit 2 set: extra field present */
-#define ORIG_NAME 0x08 /* bit 3 set: original file name present */
-#define COMMENT 0x10 /* bit 4 set: file comment present */
-#define RESERVED 0xE0 /* bits 5..7: reserved */
-
-typedef struct gz_stream {
- z_stream stream;
- int z_err; /* error code for last stream operation */
- int z_eof; /* set if end of input file */
- FILE *file; /* .gz file */
- Byte *inbuf; /* input buffer */
- Byte *outbuf; /* output buffer */
- uLong crc; /* crc32 of uncompressed data */
- char *msg; /* error message */
- char *path; /* path name for debugging only */
- int transparent; /* 1 if input file is not a .gz file */
- char mode; /* 'w' or 'r' */
- z_off_t start; /* start of compressed data in file (header skipped) */
- z_off_t in; /* bytes into deflate or inflate */
- z_off_t out; /* bytes out of deflate or inflate */
- int back; /* one character push-back */
- int last; /* true if push-back is last character */
-} gz_stream;
-
-
-local gzFile gz_open OF((const char *path, const char *mode, int fd));
-local int do_flush OF((gzFile file, int flush));
-local int get_byte OF((gz_stream *s));
-local void check_header OF((gz_stream *s));
-local int destroy OF((gz_stream *s));
-local void putLong OF((FILE *file, uLong x));
-local uLong getLong OF((gz_stream *s));
-
-/* ===========================================================================
- Opens a gzip (.gz) file for reading or writing. The mode parameter
- is as in fopen ("rb" or "wb"). The file is given either by file descriptor
- or path name (if fd == -1).
- gz_open returns NULL if the file could not be opened or if there was
- insufficient memory to allocate the (de)compression state; errno
- can be checked to distinguish the two cases (if errno is zero, the
- zlib error is Z_MEM_ERROR).
-*/
-local gzFile gz_open (path, mode, fd)
- const char *path;
- const char *mode;
- int fd;
-{
- int err;
- int level = Z_DEFAULT_COMPRESSION; /* compression level */
- int strategy = Z_DEFAULT_STRATEGY; /* compression strategy */
- char *p = (char*)mode;
- gz_stream *s;
- char fmode[80]; /* copy of mode, without the compression level */
- char *m = fmode;
-
- if (!path || !mode) return Z_NULL;
-
- s = (gz_stream *)ALLOC(sizeof(gz_stream));
- if (!s) return Z_NULL;
-
- s->stream.zalloc = (alloc_func)0;
- s->stream.zfree = (free_func)0;
- s->stream.opaque = (voidpf)0;
- s->stream.next_in = s->inbuf = Z_NULL;
- s->stream.next_out = s->outbuf = Z_NULL;
- s->stream.avail_in = s->stream.avail_out = 0;
- s->file = NULL;
- s->z_err = Z_OK;
- s->z_eof = 0;
- s->in = 0;
- s->out = 0;
- s->back = EOF;
- s->crc = crc32(0L, Z_NULL, 0);
- s->msg = NULL;
- s->transparent = 0;
-
- s->path = (char*)ALLOC(strlen(path)+1);
- if (s->path == NULL) {
- return destroy(s), (gzFile)Z_NULL;
- }
- strcpy(s->path, path); /* do this early for debugging */
-
- s->mode = '\0';
- do {
- if (*p == 'r') s->mode = 'r';
- if (*p == 'w' || *p == 'a') s->mode = 'w';
- if (*p >= '0' && *p <= '9') {
- level = *p - '0';
- } else if (*p == 'f') {
- strategy = Z_FILTERED;
- } else if (*p == 'h') {
- strategy = Z_HUFFMAN_ONLY;
- } else if (*p == 'R') {
- strategy = Z_RLE;
- } else {
- *m++ = *p; /* copy the mode */
- }
- } while (*p++ && m != fmode + sizeof(fmode));
- if (s->mode == '\0') return destroy(s), (gzFile)Z_NULL;
-
- if (s->mode == 'w') {
-#ifdef NO_GZCOMPRESS
- err = Z_STREAM_ERROR;
-#else
- err = deflateInit2(&(s->stream), level,
- Z_DEFLATED, -MAX_WBITS, DEF_MEM_LEVEL, strategy);
- /* windowBits is passed < 0 to suppress zlib header */
-
- s->stream.next_out = s->outbuf = (Byte*)ALLOC(Z_BUFSIZE);
-#endif
- if (err != Z_OK || s->outbuf == Z_NULL) {
- return destroy(s), (gzFile)Z_NULL;
- }
- } else {
- s->stream.next_in = s->inbuf = (Byte*)ALLOC(Z_BUFSIZE);
-
- err = inflateInit2(&(s->stream), -MAX_WBITS);
- /* windowBits is passed < 0 to tell that there is no zlib header.
- * Note that in this case inflate *requires* an extra "dummy" byte
- * after the compressed stream in order to complete decompression and
- * return Z_STREAM_END. Here the gzip CRC32 ensures that 4 bytes are
- * present after the compressed stream.
- */
- if (err != Z_OK || s->inbuf == Z_NULL) {
- return destroy(s), (gzFile)Z_NULL;
- }
- }
- s->stream.avail_out = Z_BUFSIZE;
-
- errno = 0;
- s->file = fd < 0 ? F_OPEN(path, fmode) : (FILE*)fdopen(fd, fmode);
-
- if (s->file == NULL) {
- return destroy(s), (gzFile)Z_NULL;
- }
- if (s->mode == 'w') {
- /* Write a very simple .gz header:
- */
- fprintf(s->file, "%c%c%c%c%c%c%c%c%c%c", gz_magic[0], gz_magic[1],
- Z_DEFLATED, 0 /*flags*/, 0,0,0,0 /*time*/, 0 /*xflags*/, OS_CODE);
- s->start = 10L;
- /* We use 10L instead of ftell(s->file) to because ftell causes an
- * fflush on some systems. This version of the library doesn't use
- * start anyway in write mode, so this initialization is not
- * necessary.
- */
- } else {
- check_header(s); /* skip the .gz header */
- s->start = ftell(s->file) - s->stream.avail_in;
- }
-
- return (gzFile)s;
-}
-
-/* ===========================================================================
- Opens a gzip (.gz) file for reading or writing.
-*/
-gzFile ZEXPORT gzopen (path, mode)
- const char *path;
- const char *mode;
-{
- return gz_open (path, mode, -1);
-}
-
-/* ===========================================================================
- Associate a gzFile with the file descriptor fd. fd is not dup'ed here
- to mimic the behavio(u)r of fdopen.
-*/
-gzFile ZEXPORT gzdopen (fd, mode)
- int fd;
- const char *mode;
-{
- char name[46]; /* allow for up to 128-bit integers */
-
- if (fd < 0) return (gzFile)Z_NULL;
- sprintf(name, "<fd:%d>", fd); /* for debugging */
-
- return gz_open (name, mode, fd);
-}
-
-/* ===========================================================================
- * Update the compression level and strategy
- */
-int ZEXPORT gzsetparams (file, level, strategy)
- gzFile file;
- int level;
- int strategy;
-{
- gz_stream *s = (gz_stream*)file;
-
- if (s == NULL || s->mode != 'w') return Z_STREAM_ERROR;
-
- /* Make room to allow flushing */
- if (s->stream.avail_out == 0) {
-
- s->stream.next_out = s->outbuf;
- if (fwrite(s->outbuf, 1, Z_BUFSIZE, s->file) != Z_BUFSIZE) {
- s->z_err = Z_ERRNO;
- }
- s->stream.avail_out = Z_BUFSIZE;
- }
-
- return deflateParams (&(s->stream), level, strategy);
-}
-
-/* ===========================================================================
- Read a byte from a gz_stream; update next_in and avail_in. Return EOF
- for end of file.
- IN assertion: the stream s has been sucessfully opened for reading.
-*/
-local int get_byte(s)
- gz_stream *s;
-{
- if (s->z_eof) return EOF;
- if (s->stream.avail_in == 0) {
- errno = 0;
- s->stream.avail_in = (uInt)fread(s->inbuf, 1, Z_BUFSIZE, s->file);
- if (s->stream.avail_in == 0) {
- s->z_eof = 1;
- if (ferror(s->file)) s->z_err = Z_ERRNO;
- return EOF;
- }
- s->stream.next_in = s->inbuf;
- }
- s->stream.avail_in--;
- return *(s->stream.next_in)++;
-}
-
-/* ===========================================================================
- Check the gzip header of a gz_stream opened for reading. Set the stream
- mode to transparent if the gzip magic header is not present; set s->err
- to Z_DATA_ERROR if the magic header is present but the rest of the header
- is incorrect.
- IN assertion: the stream s has already been created sucessfully;
- s->stream.avail_in is zero for the first time, but may be non-zero
- for concatenated .gz files.
-*/
-local void check_header(s)
- gz_stream *s;
-{
- int method; /* method byte */
- int flags; /* flags byte */
- uInt len;
- int c;
-
- /* Assure two bytes in the buffer so we can peek ahead -- handle case
- where first byte of header is at the end of the buffer after the last
- gzip segment */
- len = s->stream.avail_in;
- if (len < 2) {
- if (len) s->inbuf[0] = s->stream.next_in[0];
- errno = 0;
- len = (uInt)fread(s->inbuf + len, 1, Z_BUFSIZE >> len, s->file);
- if (len == 0 && ferror(s->file)) s->z_err = Z_ERRNO;
- s->stream.avail_in += len;
- s->stream.next_in = s->inbuf;
- if (s->stream.avail_in < 2) {
- s->transparent = s->stream.avail_in;
- return;
- }
- }
-
- /* Peek ahead to check the gzip magic header */
- if (s->stream.next_in[0] != gz_magic[0] ||
- s->stream.next_in[1] != gz_magic[1]) {
- s->transparent = 1;
- return;
- }
- s->stream.avail_in -= 2;
- s->stream.next_in += 2;
-
- /* Check the rest of the gzip header */
- method = get_byte(s);
- flags = get_byte(s);
- if (method != Z_DEFLATED || (flags & RESERVED) != 0) {
- s->z_err = Z_DATA_ERROR;
- return;
- }
-
- /* Discard time, xflags and OS code: */
- for (len = 0; len < 6; len++) (void)get_byte(s);
-
- if ((flags & EXTRA_FIELD) != 0) { /* skip the extra field */
- len = (uInt)get_byte(s);
- len += ((uInt)get_byte(s))<<8;
- /* len is garbage if EOF but the loop below will quit anyway */
- while (len-- != 0 && get_byte(s) != EOF) ;
- }
- if ((flags & ORIG_NAME) != 0) { /* skip the original file name */
- while ((c = get_byte(s)) != 0 && c != EOF) ;
- }
- if ((flags & COMMENT) != 0) { /* skip the .gz file comment */
- while ((c = get_byte(s)) != 0 && c != EOF) ;
- }
- if ((flags & HEAD_CRC) != 0) { /* skip the header crc */
- for (len = 0; len < 2; len++) (void)get_byte(s);
- }
- s->z_err = s->z_eof ? Z_DATA_ERROR : Z_OK;
-}
-
- /* ===========================================================================
- * Cleanup then free the given gz_stream. Return a zlib error code.
- Try freeing in the reverse order of allocations.
- */
-local int destroy (s)
- gz_stream *s;
-{
- int err = Z_OK;
-
- if (!s) return Z_STREAM_ERROR;
-
- TRYFREE(s->msg);
-
- if (s->stream.state != NULL) {
- if (s->mode == 'w') {
-#ifdef NO_GZCOMPRESS
- err = Z_STREAM_ERROR;
-#else
- err = deflateEnd(&(s->stream));
-#endif
- } else if (s->mode == 'r') {
- err = inflateEnd(&(s->stream));
- }
- }
- if (s->file != NULL && fclose(s->file)) {
-#ifdef ESPIPE
- if (errno != ESPIPE) /* fclose is broken for pipes in HP/UX */
-#endif
- err = Z_ERRNO;
- }
- if (s->z_err < 0) err = s->z_err;
-
- TRYFREE(s->inbuf);
- TRYFREE(s->outbuf);
- TRYFREE(s->path);
- TRYFREE(s);
- return err;
-}
-
-/* ===========================================================================
- Reads the given number of uncompressed bytes from the compressed file.
- gzread returns the number of bytes actually read (0 for end of file).
-*/
-int ZEXPORT gzread (file, buf, len)
- gzFile file;
- voidp buf;
- unsigned len;
-{
- gz_stream *s = (gz_stream*)file;
- Bytef *start = (Bytef*)buf; /* starting point for crc computation */
- Byte *next_out; /* == stream.next_out but not forced far (for MSDOS) */
-
- if (s == NULL || s->mode != 'r') return Z_STREAM_ERROR;
-
- if (s->z_err == Z_DATA_ERROR || s->z_err == Z_ERRNO) return -1;
- if (s->z_err == Z_STREAM_END) return 0; /* EOF */
-
- next_out = (Byte*)buf;
- s->stream.next_out = (Bytef*)buf;
- s->stream.avail_out = len;
-
- if (s->stream.avail_out && s->back != EOF) {
- *next_out++ = s->back;
- s->stream.next_out++;
- s->stream.avail_out--;
- s->back = EOF;
- s->out++;
- start++;
- if (s->last) {
- s->z_err = Z_STREAM_END;
- return 1;
- }
- }
-
- while (s->stream.avail_out != 0) {
-
- if (s->transparent) {
- /* Copy first the lookahead bytes: */
- uInt n = s->stream.avail_in;
- if (n > s->stream.avail_out) n = s->stream.avail_out;
- if (n > 0) {
- zmemcpy(s->stream.next_out, s->stream.next_in, n);
- next_out += n;
- s->stream.next_out = next_out;
- s->stream.next_in += n;
- s->stream.avail_out -= n;
- s->stream.avail_in -= n;
- }
- if (s->stream.avail_out > 0) {
- s->stream.avail_out -=
- (uInt)fread(next_out, 1, s->stream.avail_out, s->file);
- }
- len -= s->stream.avail_out;
- s->in += len;
- s->out += len;
- if (len == 0) s->z_eof = 1;
- return (int)len;
- }
- if (s->stream.avail_in == 0 && !s->z_eof) {
-
- errno = 0;
- s->stream.avail_in = (uInt)fread(s->inbuf, 1, Z_BUFSIZE, s->file);
- if (s->stream.avail_in == 0) {
- s->z_eof = 1;
- if (ferror(s->file)) {
- s->z_err = Z_ERRNO;
- break;
- }
- }
- s->stream.next_in = s->inbuf;
- }
- s->in += s->stream.avail_in;
- s->out += s->stream.avail_out;
- s->z_err = inflate(&(s->stream), Z_NO_FLUSH);
- s->in -= s->stream.avail_in;
- s->out -= s->stream.avail_out;
-
- if (s->z_err == Z_STREAM_END) {
- /* Check CRC and original size */
- s->crc = crc32(s->crc, start, (uInt)(s->stream.next_out - start));
- start = s->stream.next_out;
-
- if (getLong(s) != s->crc) {
- s->z_err = Z_DATA_ERROR;
- } else {
- (void)getLong(s);
- /* The uncompressed length returned by above getlong() may be
- * different from s->out in case of concatenated .gz files.
- * Check for such files:
- */
- check_header(s);
- if (s->z_err == Z_OK) {
- inflateReset(&(s->stream));
- s->crc = crc32(0L, Z_NULL, 0);
- }
- }
- }
- if (s->z_err != Z_OK || s->z_eof) break;
- }
- s->crc = crc32(s->crc, start, (uInt)(s->stream.next_out - start));
-
- if (len == s->stream.avail_out &&
- (s->z_err == Z_DATA_ERROR || s->z_err == Z_ERRNO))
- return -1;
- return (int)(len - s->stream.avail_out);
-}
-
-
-/* ===========================================================================
- Reads one byte from the compressed file. gzgetc returns this byte
- or -1 in case of end of file or error.
-*/
-int ZEXPORT gzgetc(file)
- gzFile file;
-{
- unsigned char c;
-
- return gzread(file, &c, 1) == 1 ? c : -1;
-}
-
-
-/* ===========================================================================
- Push one byte back onto the stream.
-*/
-int ZEXPORT gzungetc(c, file)
- int c;
- gzFile file;
-{
- gz_stream *s = (gz_stream*)file;
-
- if (s == NULL || s->mode != 'r' || c == EOF || s->back != EOF) return EOF;
- s->back = c;
- s->out--;
- s->last = (s->z_err == Z_STREAM_END);
- if (s->last) s->z_err = Z_OK;
- s->z_eof = 0;
- return c;
-}
-
-
-/* ===========================================================================
- Reads bytes from the compressed file until len-1 characters are
- read, or a newline character is read and transferred to buf, or an
- end-of-file condition is encountered. The string is then terminated
- with a null character.
- gzgets returns buf, or Z_NULL in case of error.
-
- The current implementation is not optimized at all.
-*/
-char * ZEXPORT gzgets(file, buf, len)
- gzFile file;
- char *buf;
- int len;
-{
- char *b = buf;
- if (buf == Z_NULL || len <= 0) return Z_NULL;
-
- while (--len > 0 && gzread(file, buf, 1) == 1 && *buf++ != '\n') ;
- *buf = '\0';
- return b == buf && len > 0 ? Z_NULL : b;
-}
-
-
-#ifndef NO_GZCOMPRESS
-/* ===========================================================================
- Writes the given number of uncompressed bytes into the compressed file.
- gzwrite returns the number of bytes actually written (0 in case of error).
-*/
-int ZEXPORT gzwrite (file, buf, len)
- gzFile file;
- voidpc buf;
- unsigned len;
-{
- gz_stream *s = (gz_stream*)file;
-
- if (s == NULL || s->mode != 'w') return Z_STREAM_ERROR;
-
- s->stream.next_in = (Bytef*)buf;
- s->stream.avail_in = len;
-
- while (s->stream.avail_in != 0) {
-
- if (s->stream.avail_out == 0) {
-
- s->stream.next_out = s->outbuf;
- if (fwrite(s->outbuf, 1, Z_BUFSIZE, s->file) != Z_BUFSIZE) {
- s->z_err = Z_ERRNO;
- break;
- }
- s->stream.avail_out = Z_BUFSIZE;
- }
- s->in += s->stream.avail_in;
- s->out += s->stream.avail_out;
- s->z_err = deflate(&(s->stream), Z_NO_FLUSH);
- s->in -= s->stream.avail_in;
- s->out -= s->stream.avail_out;
- if (s->z_err != Z_OK) break;
- }
- s->crc = crc32(s->crc, (const Bytef *)buf, len);
-
- return (int)(len - s->stream.avail_in);
-}
-
-
-/* ===========================================================================
- Converts, formats, and writes the args to the compressed file under
- control of the format string, as in fprintf. gzprintf returns the number of
- uncompressed bytes actually written (0 in case of error).
-*/
-#ifdef STDC
-#include <stdarg.h>
-
-int ZEXPORTVA gzprintf (gzFile file, const char *format, /* args */ ...)
-{
- char buf[Z_PRINTF_BUFSIZE];
- va_list va;
- int len;
-
- buf[sizeof(buf) - 1] = 0;
- va_start(va, format);
-#ifdef NO_vsnprintf
-# ifdef HAS_vsprintf_void
- (void)vsprintf(buf, format, va);
- va_end(va);
- for (len = 0; len < sizeof(buf); len++)
- if (buf[len] == 0) break;
-# else
- len = vsprintf(buf, format, va);
- va_end(va);
-# endif
-#else
-# ifdef HAS_vsnprintf_void
- (void)vsnprintf(buf, sizeof(buf), format, va);
- va_end(va);
- len = strlen(buf);
-# else
- len = vsnprintf(buf, sizeof(buf), format, va);
- va_end(va);
-# endif
-#endif
- if (len <= 0 || len >= (int)sizeof(buf) || buf[sizeof(buf) - 1] != 0)
- return 0;
- return gzwrite(file, buf, (unsigned)len);
-}
-#else /* not ANSI C */
-
-int ZEXPORTVA gzprintf (file, format, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10,
- a11, a12, a13, a14, a15, a16, a17, a18, a19, a20)
- gzFile file;
- const char *format;
- int a1, a2, a3, a4, a5, a6, a7, a8, a9, a10,
- a11, a12, a13, a14, a15, a16, a17, a18, a19, a20;
-{
- char buf[Z_PRINTF_BUFSIZE];
- int len;
-
- buf[sizeof(buf) - 1] = 0;
-#ifdef NO_snprintf
-# ifdef HAS_sprintf_void
- sprintf(buf, format, a1, a2, a3, a4, a5, a6, a7, a8,
- a9, a10, a11, a12, a13, a14, a15, a16, a17, a18, a19, a20);
- for (len = 0; len < sizeof(buf); len++)
- if (buf[len] == 0) break;
-# else
- len = sprintf(buf, format, a1, a2, a3, a4, a5, a6, a7, a8,
- a9, a10, a11, a12, a13, a14, a15, a16, a17, a18, a19, a20);
-# endif
-#else
-# ifdef HAS_snprintf_void
- snprintf(buf, sizeof(buf), format, a1, a2, a3, a4, a5, a6, a7, a8,
- a9, a10, a11, a12, a13, a14, a15, a16, a17, a18, a19, a20);
- len = strlen(buf);
-# else
- len = snprintf(buf, sizeof(buf), format, a1, a2, a3, a4, a5, a6, a7, a8,
- a9, a10, a11, a12, a13, a14, a15, a16, a17, a18, a19, a20);
-# endif
-#endif
- if (len <= 0 || len >= sizeof(buf) || buf[sizeof(buf) - 1] != 0)
- return 0;
- return gzwrite(file, buf, len);
-}
-#endif
-
-/* ===========================================================================
- Writes c, converted to an unsigned char, into the compressed file.
- gzputc returns the value that was written, or -1 in case of error.
-*/
-int ZEXPORT gzputc(file, c)
- gzFile file;
- int c;
-{
- unsigned char cc = (unsigned char) c; /* required for big endian systems */
-
- return gzwrite(file, &cc, 1) == 1 ? (int)cc : -1;
-}
-
-
-/* ===========================================================================
- Writes the given null-terminated string to the compressed file, excluding
- the terminating null character.
- gzputs returns the number of characters written, or -1 in case of error.
-*/
-int ZEXPORT gzputs(file, s)
- gzFile file;
- const char *s;
-{
- return gzwrite(file, (char*)s, (unsigned)strlen(s));
-}
-
-
-/* ===========================================================================
- Flushes all pending output into the compressed file. The parameter
- flush is as in the deflate() function.
-*/
-local int do_flush (file, flush)
- gzFile file;
- int flush;
-{
- uInt len;
- int done = 0;
- gz_stream *s = (gz_stream*)file;
-
- if (s == NULL || s->mode != 'w') return Z_STREAM_ERROR;
-
- s->stream.avail_in = 0; /* should be zero already anyway */
-
- for (;;) {
- len = Z_BUFSIZE - s->stream.avail_out;
-
- if (len != 0) {
- if ((uInt)fwrite(s->outbuf, 1, len, s->file) != len) {
- s->z_err = Z_ERRNO;
- return Z_ERRNO;
- }
- s->stream.next_out = s->outbuf;
- s->stream.avail_out = Z_BUFSIZE;
- }
- if (done) break;
- s->out += s->stream.avail_out;
- s->z_err = deflate(&(s->stream), flush);
- s->out -= s->stream.avail_out;
-
- /* Ignore the second of two consecutive flushes: */
- if (len == 0 && s->z_err == Z_BUF_ERROR) s->z_err = Z_OK;
-
- /* deflate has finished flushing only when it hasn't used up
- * all the available space in the output buffer:
- */
- done = (s->stream.avail_out != 0 || s->z_err == Z_STREAM_END);
-
- if (s->z_err != Z_OK && s->z_err != Z_STREAM_END) break;
- }
- return s->z_err == Z_STREAM_END ? Z_OK : s->z_err;
-}
-
-int ZEXPORT gzflush (file, flush)
- gzFile file;
- int flush;
-{
- gz_stream *s = (gz_stream*)file;
- int err = do_flush (file, flush);
-
- if (err) return err;
- fflush(s->file);
- return s->z_err == Z_STREAM_END ? Z_OK : s->z_err;
-}
-#endif /* NO_GZCOMPRESS */
-
-/* ===========================================================================
- Sets the starting position for the next gzread or gzwrite on the given
- compressed file. The offset represents a number of bytes in the
- gzseek returns the resulting offset location as measured in bytes from
- the beginning of the uncompressed stream, or -1 in case of error.
- SEEK_END is not implemented, returns error.
- In this version of the library, gzseek can be extremely slow.
-*/
-z_off_t ZEXPORT gzseek (file, offset, whence)
- gzFile file;
- z_off_t offset;
- int whence;
-{
- gz_stream *s = (gz_stream*)file;
-
- if (s == NULL || whence == SEEK_END ||
- s->z_err == Z_ERRNO || s->z_err == Z_DATA_ERROR) {
- return -1L;
- }
-
- if (s->mode == 'w') {
-#ifdef NO_GZCOMPRESS
- return -1L;
-#else
- if (whence == SEEK_SET) {
- offset -= s->in;
- }
- if (offset < 0) return -1L;
-
- /* At this point, offset is the number of zero bytes to write. */
- if (s->inbuf == Z_NULL) {
- s->inbuf = (Byte*)ALLOC(Z_BUFSIZE); /* for seeking */
- if (s->inbuf == Z_NULL) return -1L;
- zmemzero(s->inbuf, Z_BUFSIZE);
- }
- while (offset > 0) {
- uInt size = Z_BUFSIZE;
- if (offset < Z_BUFSIZE) size = (uInt)offset;
-
- size = gzwrite(file, s->inbuf, size);
- if (size == 0) return -1L;
-
- offset -= size;
- }
- return s->in;
-#endif
- }
- /* Rest of function is for reading only */
-
- /* compute absolute position */
- if (whence == SEEK_CUR) {
- offset += s->out;
- }
- if (offset < 0) return -1L;
-
- if (s->transparent) {
- /* map to fseek */
- s->back = EOF;
- s->stream.avail_in = 0;
- s->stream.next_in = s->inbuf;
- if (fseek(s->file, offset, SEEK_SET) < 0) return -1L;
-
- s->in = s->out = offset;
- return offset;
- }
-
- /* For a negative seek, rewind and use positive seek */
- if (offset >= s->out) {
- offset -= s->out;
- } else if (gzrewind(file) < 0) {
- return -1L;
- }
- /* offset is now the number of bytes to skip. */
-
- if (offset != 0 && s->outbuf == Z_NULL) {
- s->outbuf = (Byte*)ALLOC(Z_BUFSIZE);
- if (s->outbuf == Z_NULL) return -1L;
- }
- if (offset && s->back != EOF) {
- s->back = EOF;
- s->out++;
- offset--;
- if (s->last) s->z_err = Z_STREAM_END;
- }
- while (offset > 0) {
- int size = Z_BUFSIZE;
- if (offset < Z_BUFSIZE) size = (int)offset;
-
- size = gzread(file, s->outbuf, (uInt)size);
- if (size <= 0) return -1L;
- offset -= size;
- }
- return s->out;
-}
-
-/* ===========================================================================
- Rewinds input file.
-*/
-int ZEXPORT gzrewind (file)
- gzFile file;
-{
- gz_stream *s = (gz_stream*)file;
-
- if (s == NULL || s->mode != 'r') return -1;
-
- s->z_err = Z_OK;
- s->z_eof = 0;
- s->back = EOF;
- s->stream.avail_in = 0;
- s->stream.next_in = s->inbuf;
- s->crc = crc32(0L, Z_NULL, 0);
- if (!s->transparent) (void)inflateReset(&s->stream);
- s->in = 0;
- s->out = 0;
- return fseek(s->file, s->start, SEEK_SET);
-}
-
-/* ===========================================================================
- Returns the starting position for the next gzread or gzwrite on the
- given compressed file. This position represents a number of bytes in the
- uncompressed data stream.
-*/
-z_off_t ZEXPORT gztell (file)
- gzFile file;
-{
- return gzseek(file, 0L, SEEK_CUR);
-}
-
-/* ===========================================================================
- Returns 1 when EOF has previously been detected reading the given
- input stream, otherwise zero.
-*/
-int ZEXPORT gzeof (file)
- gzFile file;
-{
- gz_stream *s = (gz_stream*)file;
-
- /* With concatenated compressed files that can have embedded
- * crc trailers, z_eof is no longer the only/best indicator of EOF
- * on a gz_stream. Handle end-of-stream error explicitly here.
- */
- if (s == NULL || s->mode != 'r') return 0;
- if (s->z_eof) return 1;
- return s->z_err == Z_STREAM_END;
-}
-
-/* ===========================================================================
- Returns 1 if reading and doing so transparently, otherwise zero.
-*/
-int ZEXPORT gzdirect (file)
- gzFile file;
-{
- gz_stream *s = (gz_stream*)file;
-
- if (s == NULL || s->mode != 'r') return 0;
- return s->transparent;
-}
-
-/* ===========================================================================
- Outputs a long in LSB order to the given file
-*/
-local void putLong (file, x)
- FILE *file;
- uLong x;
-{
- int n;
- for (n = 0; n < 4; n++) {
- fputc((int)(x & 0xff), file);
- x >>= 8;
- }
-}
-
-/* ===========================================================================
- Reads a long in LSB order from the given gz_stream. Sets z_err in case
- of error.
-*/
-local uLong getLong (s)
- gz_stream *s;
-{
- uLong x = (uLong)get_byte(s);
- int c;
-
- x += ((uLong)get_byte(s))<<8;
- x += ((uLong)get_byte(s))<<16;
- c = get_byte(s);
- if (c == EOF) s->z_err = Z_DATA_ERROR;
- x += ((uLong)c)<<24;
- return x;
-}
-
-/* ===========================================================================
- Flushes all pending output if necessary, closes the compressed file
- and deallocates all the (de)compression state.
-*/
-int ZEXPORT gzclose (file)
- gzFile file;
-{
- gz_stream *s = (gz_stream*)file;
-
- if (s == NULL) return Z_STREAM_ERROR;
-
- if (s->mode == 'w') {
-#ifdef NO_GZCOMPRESS
- return Z_STREAM_ERROR;
-#else
- if (do_flush (file, Z_FINISH) != Z_OK)
- return destroy((gz_stream*)file);
-
- putLong (s->file, s->crc);
- putLong (s->file, (uLong)(s->in & 0xffffffff));
-#endif
- }
- return destroy((gz_stream*)file);
-}
-
-#ifdef STDC
-# define zstrerror(errnum) strerror(errnum)
-#else
-# define zstrerror(errnum) ""
-#endif
-
-/* ===========================================================================
- Returns the error message for the last error which occurred on the
- given compressed file. errnum is set to zlib error number. If an
- error occurred in the file system and not in the compression library,
- errnum is set to Z_ERRNO and the application may consult errno
- to get the exact error code.
-*/
-const char * ZEXPORT gzerror (file, errnum)
- gzFile file;
- int *errnum;
-{
- char *m;
- gz_stream *s = (gz_stream*)file;
-
- if (s == NULL) {
- *errnum = Z_STREAM_ERROR;
- return (const char*)ERR_MSG(Z_STREAM_ERROR);
- }
- *errnum = s->z_err;
- if (*errnum == Z_OK) return (const char*)"";
-
- m = (char*)(*errnum == Z_ERRNO ? zstrerror(errno) : s->stream.msg);
-
- if (m == NULL || *m == '\0') m = (char*)ERR_MSG(s->z_err);
-
- TRYFREE(s->msg);
- s->msg = (char*)ALLOC(strlen(s->path) + strlen(m) + 3);
- if (s->msg == Z_NULL) return (const char*)ERR_MSG(Z_MEM_ERROR);
- strcpy(s->msg, s->path);
- strcat(s->msg, ": ");
- strcat(s->msg, m);
- return (const char*)s->msg;
-}
-
-/* ===========================================================================
- Clear the error and end-of-file flags, and do the same for the real file.
-*/
-void ZEXPORT gzclearerr (file)
- gzFile file;
-{
- gz_stream *s = (gz_stream*)file;
-
- if (s == NULL) return;
- if (s->z_err != Z_STREAM_END) s->z_err = Z_OK;
- s->z_eof = 0;
- clearerr(s->file);
-}
diff --git a/gzlib.c b/gzlib.c
index 603e60e..7aedab8 100644
--- a/gzlib.c
+++ b/gzlib.c
@@ -1,15 +1,19 @@
/* gzlib.c -- zlib functions common to reading and writing gzip files
- * Copyright (C) 2004, 2010 Mark Adler
+ * Copyright (C) 2004, 2010, 2011 Mark Adler
* For conditions of distribution and use, see copyright notice in zlib.h
*/
#include "gzguts.h"
+#if defined(_WIN32) && !defined(__BORLANDC__)
+# define LSEEK _lseeki64
+#else
#if defined(_LARGEFILE64_SOURCE) && _LFS64_LARGEFILE-0
# define LSEEK lseek64
#else
# define LSEEK lseek
#endif
+#endif
/* Local functions */
local void gz_reset OF((gz_statep));
@@ -71,15 +75,15 @@
local void gz_reset(state)
gz_statep state;
{
+ state->x.have = 0; /* no output data available */
if (state->mode == GZ_READ) { /* for reading ... */
- state->have = 0; /* no output data available */
state->eof = 0; /* not at end of file */
+ state->past = 0; /* have not read past end yet */
state->how = LOOK; /* look for gzip header */
- state->direct = 1; /* default for empty file */
}
state->seek = 0; /* no seek request pending */
gz_error(state, Z_OK, NULL); /* clear error */
- state->pos = 0; /* no uncompressed data yet */
+ state->x.pos = 0; /* no uncompressed data yet */
state->strm.avail_in = 0; /* no input data yet */
}
@@ -91,6 +95,10 @@
{
gz_statep state;
+ /* check input */
+ if (path == NULL)
+ return NULL;
+
/* allocate gzFile structure to return */
state = malloc(sizeof(gz_state));
if (state == NULL)
@@ -103,6 +111,7 @@
state->mode = GZ_NONE;
state->level = Z_DEFAULT_COMPRESSION;
state->strategy = Z_DEFAULT_STRATEGY;
+ state->direct = 0;
while (*mode) {
if (*mode >= '0' && *mode <= '9')
state->level = *mode - '0';
@@ -135,6 +144,8 @@
break;
case 'F':
state->strategy = Z_FIXED;
+ case 'T':
+ state->direct = 1;
default: /* could consider as an error, but just ignore */
;
}
@@ -147,6 +158,15 @@
return NULL;
}
+ /* can't force transparent read */
+ if (state->mode == GZ_READ) {
+ if (state->direct) {
+ free(state);
+ return NULL;
+ }
+ state->direct = 1; /* for empty file */
+ }
+
/* save the path name for error messages */
state->path = malloc(strlen(path) + 1);
if (state->path == NULL) {
@@ -243,8 +263,8 @@
return -1;
/* check and set requested size */
- if (size == 0)
- return -1;
+ if (size < 2)
+ size = 2; /* need two bytes to check magic header */
state->want = size;
return 0;
}
@@ -261,7 +281,8 @@
state = (gz_statep)file;
/* check that we're reading and that there's no error */
- if (state->mode != GZ_READ || state->err != Z_OK)
+ if (state->mode != GZ_READ ||
+ (state->err != Z_OK && state->err != Z_BUF_ERROR))
return -1;
/* back up and start over */
@@ -289,7 +310,7 @@
return -1;
/* check that there's no error */
- if (state->err != Z_OK)
+ if (state->err != Z_OK && state->err != Z_BUF_ERROR)
return -1;
/* can only seek from start or relative to current position */
@@ -298,31 +319,32 @@
/* normalize offset to a SEEK_CUR specification */
if (whence == SEEK_SET)
- offset -= state->pos;
+ offset -= state->x.pos;
else if (state->seek)
offset += state->skip;
state->seek = 0;
/* if within raw area while reading, just go there */
if (state->mode == GZ_READ && state->how == COPY &&
- state->pos + offset >= state->raw) {
- ret = LSEEK(state->fd, offset - state->have, SEEK_CUR);
+ state->x.pos + offset >= 0) {
+ ret = LSEEK(state->fd, offset - state->x.have, SEEK_CUR);
if (ret == -1)
return -1;
- state->have = 0;
+ state->x.have = 0;
state->eof = 0;
+ state->past = 0;
state->seek = 0;
gz_error(state, Z_OK, NULL);
state->strm.avail_in = 0;
- state->pos += offset;
- return state->pos;
+ state->x.pos += offset;
+ return state->x.pos;
}
/* calculate skip amount, rewinding if needed for back seek when reading */
if (offset < 0) {
if (state->mode != GZ_READ) /* writing -- can't go backwards */
return -1;
- offset += state->pos;
+ offset += state->x.pos;
if (offset < 0) /* before start of file! */
return -1;
if (gzrewind(file) == -1) /* rewind, then skip to offset */
@@ -331,11 +353,11 @@
/* if reading, skip what's in output buffer (one less gzgetc() check) */
if (state->mode == GZ_READ) {
- n = GT_OFF(state->have) || (z_off64_t)state->have > offset ?
- (unsigned)offset : state->have;
- state->have -= n;
- state->next += n;
- state->pos += n;
+ n = GT_OFF(state->x.have) || (z_off64_t)state->x.have > offset ?
+ (unsigned)offset : state->x.have;
+ state->x.have -= n;
+ state->x.next += n;
+ state->x.pos += n;
offset -= n;
}
@@ -344,7 +366,7 @@
state->seek = 1;
state->skip = offset;
}
- return state->pos + offset;
+ return state->x.pos + offset;
}
/* -- see zlib.h -- */
@@ -373,7 +395,7 @@
return -1;
/* return position */
- return state->pos + (state->seek ? state->skip : 0);
+ return state->x.pos + (state->seek ? state->skip : 0);
}
/* -- see zlib.h -- */
@@ -433,8 +455,7 @@
return 0;
/* return end-of-file state */
- return state->mode == GZ_READ ?
- (state->eof && state->strm.avail_in == 0 && state->have == 0) : 0;
+ return state->mode == GZ_READ ? state->past : 0;
}
/* -- see zlib.h -- */
@@ -471,8 +492,10 @@
return;
/* clear error and end-of-file */
- if (state->mode == GZ_READ)
+ if (state->mode == GZ_READ) {
state->eof = 0;
+ state->past = 0;
+ }
gz_error(state, Z_OK, NULL);
}
@@ -494,6 +517,10 @@
state->msg = NULL;
}
+ /* if fatal, set state->x.have to 0 so that the gzgetc() macro fails */
+ if (err != Z_OK && err != Z_BUF_ERROR)
+ state->x.have = 0;
+
/* set error code, and if no message, then done */
state->err = err;
if (msg == NULL)
diff --git a/gzread.c b/gzread.c
index 548201a..46d40e0 100644
--- a/gzread.c
+++ b/gzread.c
@@ -1,5 +1,5 @@
/* gzread.c -- zlib functions for reading gzip files
- * Copyright (C) 2004, 2005, 2010 Mark Adler
+ * Copyright (C) 2004, 2005, 2010, 2011 Mark Adler
* For conditions of distribution and use, see copyright notice in zlib.h
*/
@@ -8,10 +8,9 @@
/* Local functions */
local int gz_load OF((gz_statep, unsigned char *, unsigned, unsigned *));
local int gz_avail OF((gz_statep));
-local int gz_next4 OF((gz_statep, unsigned long *));
-local int gz_head OF((gz_statep));
+local int gz_look OF((gz_statep));
local int gz_decomp OF((gz_statep));
-local int gz_make OF((gz_statep));
+local int gz_fetch OF((gz_statep));
local int gz_skip OF((gz_statep, z_off64_t));
/* Use read() to load a buffer -- return -1 on error, otherwise 0. Read from
@@ -46,67 +45,42 @@
error, 0 otherwise. Note that the eof flag is set when the end of the input
file is reached, even though there may be unused data in the buffer. Once
that data has been used, no more attempts will be made to read the file.
- gz_avail() assumes that strm->avail_in == 0. */
+ If strm->avail_in != 0, then the current data is moved to the beginning of
+ the input buffer, and then the remainder of the buffer is loaded with the
+ available data from the input file. */
local int gz_avail(state)
gz_statep state;
{
+ unsigned got;
z_streamp strm = &(state->strm);
- if (state->err != Z_OK)
+ if (state->err != Z_OK && state->err != Z_BUF_ERROR)
return -1;
if (state->eof == 0) {
- if (gz_load(state, state->in, state->size,
- (unsigned *)&(strm->avail_in)) == -1)
+ if (strm->avail_in)
+ memmove(state->in, strm->next_in, strm->avail_in);
+ if (gz_load(state, state->in + strm->avail_in,
+ state->size - strm->avail_in, &got) == -1)
return -1;
+ strm->avail_in += got;
strm->next_in = state->in;
}
return 0;
}
-/* Get next byte from input, or -1 if end or error. */
-#define NEXT() ((strm->avail_in == 0 && gz_avail(state) == -1) ? -1 : \
- (strm->avail_in == 0 ? -1 : \
- (strm->avail_in--, *(strm->next_in)++)))
-
-/* Get a four-byte little-endian integer and return 0 on success and the value
- in *ret. Otherwise -1 is returned and *ret is not modified. */
-local int gz_next4(state, ret)
- gz_statep state;
- unsigned long *ret;
-{
- int ch;
- unsigned long val;
- z_streamp strm = &(state->strm);
-
- val = NEXT();
- val += (unsigned)NEXT() << 8;
- val += (unsigned long)NEXT() << 16;
- ch = NEXT();
- if (ch == -1)
- return -1;
- val += (unsigned long)ch << 24;
- *ret = val;
- return 0;
-}
-
-/* Look for gzip header, set up for inflate or copy. state->have must be zero.
+/* Look for gzip header, set up for inflate or copy. state->x.have must be 0.
If this is the first time in, allocate required memory. state->how will be
left unchanged if there is no more input data available, will be set to COPY
if there is no gzip header and direct copying will be performed, or it will
- be set to GZIP for decompression, and the gzip header will be skipped so
- that the next available input data is the raw deflate stream. If direct
- copying, then leftover input data from the input buffer will be copied to
- the output buffer. In that case, all further file reads will be directly to
- either the output buffer or a user buffer. If decompressing, the inflate
- state and the check value will be initialized. gz_head() will return 0 on
- success or -1 on failure. Failures may include read errors or gzip header
- errors. */
-local int gz_head(state)
+ be set to GZIP for decompression. If direct copying, then leftover input
+ data from the input buffer will be copied to the output buffer. In that
+ case, all further file reads will be directly to either the output buffer or
+ a user buffer. If decompressing, the inflate state will be initialized.
+ gz_look() will return 0 on success or -1 on failure. */
+local int gz_look(state)
gz_statep state;
{
z_streamp strm = &(state->strm);
- int flags;
- unsigned len;
/* allocate read buffers and inflate memory */
if (state->size == 0) {
@@ -129,7 +103,7 @@
state->strm.opaque = Z_NULL;
state->strm.avail_in = 0;
state->strm.next_in = Z_NULL;
- if (inflateInit2(&(state->strm), -15) != Z_OK) { /* raw inflate */
+ if (inflateInit2(&(state->strm), 15 + 16) != Z_OK) { /* gunzip */
free(state->out);
free(state->in);
state->size = 0;
@@ -138,83 +112,45 @@
}
}
- /* get some data in the input buffer */
- if (strm->avail_in == 0) {
+ /* get at least the magic bytes in the input buffer */
+ if (strm->avail_in < 2) {
if (gz_avail(state) == -1)
return -1;
if (strm->avail_in == 0)
return 0;
}
- /* look for the gzip magic header bytes 31 and 139 */
- if (strm->next_in[0] == 31) {
- strm->avail_in--;
- strm->next_in++;
- if (strm->avail_in == 0 && gz_avail(state) == -1)
- return -1;
- if (strm->avail_in && strm->next_in[0] == 139) {
- /* we have a gzip header, woo hoo! */
- strm->avail_in--;
- strm->next_in++;
-
- /* skip rest of header */
- if (NEXT() != 8) { /* compression method */
- gz_error(state, Z_DATA_ERROR, "unknown compression method");
- return -1;
- }
- flags = NEXT();
- if (flags & 0xe0) { /* reserved flag bits */
- gz_error(state, Z_DATA_ERROR, "unknown header flags set");
- return -1;
- }
- NEXT(); /* modification time */
- NEXT();
- NEXT();
- NEXT();
- NEXT(); /* extra flags */
- NEXT(); /* operating system */
- if (flags & 4) { /* extra field */
- len = (unsigned)NEXT();
- len += (unsigned)NEXT() << 8;
- while (len--)
- if (NEXT() < 0)
- break;
- }
- if (flags & 8) /* file name */
- while (NEXT() > 0)
- ;
- if (flags & 16) /* comment */
- while (NEXT() > 0)
- ;
- if (flags & 2) { /* header crc */
- NEXT();
- NEXT();
- }
- /* an unexpected end of file is not checked for here -- it will be
- noticed on the first request for uncompressed data */
-
- /* set up for decompression */
- inflateReset(strm);
- strm->adler = crc32(0L, Z_NULL, 0);
- state->how = GZIP;
- state->direct = 0;
- return 0;
- }
- else {
- /* not a gzip file -- save first byte (31) and fall to raw i/o */
- state->out[0] = 31;
- state->have = 1;
- }
+ /* look for gzip magic bytes -- if there, do gzip decoding (note: there is
+ a logical dilemma here when considering the case of a partially written
+ gzip file, to wit, if a single 31 byte is written, then we cannot tell
+ whether this is a single-byte file, or just a partially written gzip
+ file -- for here we assume that if a gzip file is being written, then
+ the header will be written in a single operation, so that reading a
+ single byte is sufficient indication that it is not a gzip file) */
+ if (strm->avail_in > 1 &&
+ strm->next_in[0] == 31 && strm->next_in[1] == 139) {
+ inflateReset(strm);
+ state->how = GZIP;
+ state->direct = 0;
+ return 0;
}
- /* doing raw i/o, save start of raw data for seeking, copy any leftover
- input to output -- this assumes that the output buffer is larger than
- the input buffer, which also assures space for gzungetc() */
- state->raw = state->pos;
- state->next = state->out;
+ /* no gzip header -- if we were decoding gzip before, then this is trailing
+ garbage. Ignore the trailing garbage and finish. */
+ if (state->direct == 0) {
+ strm->avail_in = 0;
+ state->eof = 1;
+ state->x.have = 0;
+ return 0;
+ }
+
+ /* doing raw i/o, copy any leftover input to output -- this assumes that
+ the output buffer is larger than the input buffer, which also assures
+ space for gzungetc() */
+ state->x.next = state->out;
if (strm->avail_in) {
- memcpy(state->next + state->have, strm->next_in, strm->avail_in);
- state->have += strm->avail_in;
+ memcpy(state->x.next, strm->next_in, strm->avail_in);
+ state->x.have = strm->avail_in;
strm->avail_in = 0;
}
state->how = COPY;
@@ -223,19 +159,15 @@
}
/* Decompress from input to the provided next_out and avail_out in the state.
- If the end of the compressed data is reached, then verify the gzip trailer
- check value and length (modulo 2^32). state->have and state->next are set
- to point to the just decompressed data, and the crc is updated. If the
- trailer is verified, state->how is reset to LOOK to look for the next gzip
- stream or raw data, once state->have is depleted. Returns 0 on success, -1
- on failure. Failures may include invalid compressed data or a failed gzip
- trailer verification. */
+ On return, state->x.have and state->x.next point to the just decompressed
+ data. If the gzip stream completes, state->how is reset to LOOK to look for
+ the next gzip stream or raw data, once state->x.have is depleted. Returns 0
+ on success, -1 on failure. */
local int gz_decomp(state)
gz_statep state;
{
- int ret;
+ int ret = Z_OK;
unsigned had;
- unsigned long crc, len;
z_streamp strm = &(state->strm);
/* fill output buffer up to end of deflate stream */
@@ -245,15 +177,15 @@
if (strm->avail_in == 0 && gz_avail(state) == -1)
return -1;
if (strm->avail_in == 0) {
- gz_error(state, Z_DATA_ERROR, "unexpected end of file");
- return -1;
+ gz_error(state, Z_BUF_ERROR, "unexpected end of file");
+ break;
}
/* decompress and handle errors */
ret = inflate(strm, Z_NO_FLUSH);
if (ret == Z_STREAM_ERROR || ret == Z_NEED_DICT) {
gz_error(state, Z_STREAM_ERROR,
- "internal error: inflate stream corrupt");
+ "internal error: inflate stream corrupt");
return -1;
}
if (ret == Z_MEM_ERROR) {
@@ -262,67 +194,55 @@
}
if (ret == Z_DATA_ERROR) { /* deflate stream invalid */
gz_error(state, Z_DATA_ERROR,
- strm->msg == NULL ? "compressed data error" : strm->msg);
+ strm->msg == NULL ? "compressed data error" : strm->msg);
return -1;
}
} while (strm->avail_out && ret != Z_STREAM_END);
- /* update available output and crc check value */
- state->have = had - strm->avail_out;
- state->next = strm->next_out - state->have;
- strm->adler = crc32(strm->adler, state->next, state->have);
+ /* update available output */
+ state->x.have = had - strm->avail_out;
+ state->x.next = strm->next_out - state->x.have;
- /* check gzip trailer if at end of deflate stream */
- if (ret == Z_STREAM_END) {
- if (gz_next4(state, &crc) == -1 || gz_next4(state, &len) == -1) {
- gz_error(state, Z_DATA_ERROR, "unexpected end of file");
- return -1;
- }
- if (crc != strm->adler) {
- gz_error(state, Z_DATA_ERROR, "incorrect data check");
- return -1;
- }
- if (len != (strm->total_out & 0xffffffffL)) {
- gz_error(state, Z_DATA_ERROR, "incorrect length check");
- return -1;
- }
- state->how = LOOK; /* ready for next stream, once have is 0 (leave
- state->direct unchanged to remember how) */
- }
+ /* if the gzip stream completed successfully, look for another */
+ if (ret == Z_STREAM_END)
+ state->how = LOOK;
/* good decompression */
return 0;
}
-/* Make data and put in the output buffer. Assumes that state->have == 0.
+/* Fetch data and put it in the output buffer. Assumes state->x.have is 0.
Data is either copied from the input file or decompressed from the input
file depending on state->how. If state->how is LOOK, then a gzip header is
- looked for (and skipped if found) to determine wither to copy or decompress.
- Returns -1 on error, otherwise 0. gz_make() will leave state->have as COPY
- or GZIP unless the end of the input file has been reached and all data has
- been processed. */
-local int gz_make(state)
+ looked for to determine whether to copy or decompress. Returns -1 on error,
+ otherwise 0. gz_fetch() will leave state->how as COPY or GZIP unless the
+ end of the input file has been reached and all data has been processed. */
+local int gz_fetch(state)
gz_statep state;
{
z_streamp strm = &(state->strm);
- if (state->how == LOOK) { /* look for gzip header */
- if (gz_head(state) == -1)
- return -1;
- if (state->have) /* got some data from gz_head() */
+ do {
+ switch(state->how) {
+ case LOOK: /* -> LOOK, COPY (only if never GZIP), or GZIP */
+ if (gz_look(state) == -1)
+ return -1;
+ if (state->how == LOOK)
+ return 0;
+ break;
+ case COPY: /* -> COPY */
+ if (gz_load(state, state->out, state->size << 1, &(state->x.have))
+ == -1)
+ return -1;
+ state->x.next = state->out;
return 0;
- }
- if (state->how == COPY) { /* straight copy */
- if (gz_load(state, state->out, state->size << 1, &(state->have)) == -1)
- return -1;
- state->next = state->out;
- }
- else if (state->how == GZIP) { /* decompress */
- strm->avail_out = state->size << 1;
- strm->next_out = state->out;
- if (gz_decomp(state) == -1)
- return -1;
- }
+ case GZIP: /* -> GZIP or LOOK (if end of gzip stream) */
+ strm->avail_out = state->size << 1;
+ strm->next_out = state->out;
+ if (gz_decomp(state) == -1)
+ return -1;
+ }
+ } while (state->x.have == 0 && (!state->eof || strm->avail_in));
return 0;
}
@@ -336,12 +256,12 @@
/* skip over len bytes or reach end-of-file, whichever comes first */
while (len)
/* skip over whatever is in output buffer */
- if (state->have) {
- n = GT_OFF(state->have) || (z_off64_t)state->have > len ?
- (unsigned)len : state->have;
- state->have -= n;
- state->next += n;
- state->pos += n;
+ if (state->x.have) {
+ n = GT_OFF(state->x.have) || (z_off64_t)state->x.have > len ?
+ (unsigned)len : state->x.have;
+ state->x.have -= n;
+ state->x.next += n;
+ state->x.pos += n;
len -= n;
}
@@ -352,7 +272,7 @@
/* need more data to skip -- load up output buffer */
else {
/* get more output, looking for header if required */
- if (gz_make(state) == -1)
+ if (gz_fetch(state) == -1)
return -1;
}
return 0;
@@ -374,14 +294,15 @@
state = (gz_statep)file;
strm = &(state->strm);
- /* check that we're reading and that there's no error */
- if (state->mode != GZ_READ || state->err != Z_OK)
+ /* check that we're reading and that there's no (serious) error */
+ if (state->mode != GZ_READ ||
+ (state->err != Z_OK && state->err != Z_BUF_ERROR))
return -1;
/* since an int is returned, make sure len fits in one, otherwise return
with an error (this avoids the flaw in the interface) */
if ((int)len < 0) {
- gz_error(state, Z_BUF_ERROR, "requested length does not fit in int");
+ gz_error(state, Z_DATA_ERROR, "requested length does not fit in int");
return -1;
}
@@ -400,22 +321,24 @@
got = 0;
do {
/* first just try copying data from the output buffer */
- if (state->have) {
- n = state->have > len ? len : state->have;
- memcpy(buf, state->next, n);
- state->next += n;
- state->have -= n;
+ if (state->x.have) {
+ n = state->x.have > len ? len : state->x.have;
+ memcpy(buf, state->x.next, n);
+ state->x.next += n;
+ state->x.have -= n;
}
/* output buffer empty -- return if we're at the end of the input */
- else if (state->eof && strm->avail_in == 0)
+ else if (state->eof && strm->avail_in == 0) {
+ state->past = 1; /* tried to read past end */
break;
+ }
/* need output data -- for small len or new stream load up our output
buffer */
else if (state->how == LOOK || len < (state->size << 1)) {
/* get more output, looking for header if required */
- if (gz_make(state) == -1)
+ if (gz_fetch(state) == -1)
return -1;
continue; /* no progress yet -- go back to memcpy() above */
/* the copy above assures that we will leave with space in the
@@ -434,15 +357,15 @@
strm->next_out = buf;
if (gz_decomp(state) == -1)
return -1;
- n = state->have;
- state->have = 0;
+ n = state->x.have;
+ state->x.have = 0;
}
/* update progress */
len -= n;
buf = (char *)buf + n;
got += n;
- state->pos += n;
+ state->x.pos += n;
} while (len);
/* return number of bytes read into user buffer (will fit in int) */
@@ -450,7 +373,7 @@
}
/* -- see zlib.h -- */
-int ZEXPORT gzgetc(file)
+int ZEXPORT gzgetc_(file)
gzFile file;
{
int ret;
@@ -462,15 +385,16 @@
return -1;
state = (gz_statep)file;
- /* check that we're reading and that there's no error */
- if (state->mode != GZ_READ || state->err != Z_OK)
+ /* check that we're reading and that there's no (serious) error */
+ if (state->mode != GZ_READ ||
+ (state->err != Z_OK && state->err != Z_BUF_ERROR))
return -1;
/* try output buffer (no need to check for skip request) */
- if (state->have) {
- state->have--;
- state->pos++;
- return *(state->next)++;
+ if (state->x.have) {
+ state->x.have--;
+ state->x.pos++;
+ return *(state->x.next)++;
}
/* nothing there -- try gzread() */
@@ -478,6 +402,13 @@
return ret < 1 ? -1 : buf[0];
}
+#undef gzgetc
+int ZEXPORT gzgetc(file)
+gzFile file;
+{
+ return gzgetc_(file);
+}
+
/* -- see zlib.h -- */
int ZEXPORT gzungetc(c, file)
int c;
@@ -490,8 +421,9 @@
return -1;
state = (gz_statep)file;
- /* check that we're reading and that there's no error */
- if (state->mode != GZ_READ || state->err != Z_OK)
+ /* check that we're reading and that there's no (serious) error */
+ if (state->mode != GZ_READ ||
+ (state->err != Z_OK && state->err != Z_BUF_ERROR))
return -1;
/* process a skip request */
@@ -506,32 +438,34 @@
return -1;
/* if output buffer empty, put byte at end (allows more pushing) */
- if (state->have == 0) {
- state->have = 1;
- state->next = state->out + (state->size << 1) - 1;
- state->next[0] = c;
- state->pos--;
+ if (state->x.have == 0) {
+ state->x.have = 1;
+ state->x.next = state->out + (state->size << 1) - 1;
+ state->x.next[0] = c;
+ state->x.pos--;
+ state->past = 0;
return c;
}
/* if no room, give up (must have already done a gzungetc()) */
- if (state->have == (state->size << 1)) {
- gz_error(state, Z_BUF_ERROR, "out of room to push characters");
+ if (state->x.have == (state->size << 1)) {
+ gz_error(state, Z_DATA_ERROR, "out of room to push characters");
return -1;
}
/* slide output data if needed and insert byte before existing data */
- if (state->next == state->out) {
- unsigned char *src = state->out + state->have;
+ if (state->x.next == state->out) {
+ unsigned char *src = state->out + state->x.have;
unsigned char *dest = state->out + (state->size << 1);
while (src > state->out)
*--dest = *--src;
- state->next = dest;
+ state->x.next = dest;
}
- state->have++;
- state->next--;
- state->next[0] = c;
- state->pos--;
+ state->x.have++;
+ state->x.next--;
+ state->x.next[0] = c;
+ state->x.pos--;
+ state->past = 0;
return c;
}
@@ -551,8 +485,9 @@
return NULL;
state = (gz_statep)file;
- /* check that we're reading and that there's no error */
- if (state->mode != GZ_READ || state->err != Z_OK)
+ /* check that we're reading and that there's no (serious) error */
+ if (state->mode != GZ_READ ||
+ (state->err != Z_OK && state->err != Z_BUF_ERROR))
return NULL;
/* process a skip request */
@@ -569,32 +504,31 @@
left = (unsigned)len - 1;
if (left) do {
/* assure that something is in the output buffer */
- if (state->have == 0) {
- if (gz_make(state) == -1)
- return NULL; /* error */
- if (state->have == 0) { /* end of file */
- if (buf == str) /* got bupkus */
- return NULL;
- break; /* got something -- return it */
- }
+ if (state->x.have == 0 && gz_fetch(state) == -1)
+ return NULL; /* error */
+ if (state->x.have == 0) { /* end of file */
+ state->past = 1; /* read past end */
+ break; /* return what we have */
}
/* look for end-of-line in current output buffer */
- n = state->have > left ? left : state->have;
- eol = memchr(state->next, '\n', n);
+ n = state->x.have > left ? left : state->x.have;
+ eol = memchr(state->x.next, '\n', n);
if (eol != NULL)
- n = (unsigned)(eol - state->next) + 1;
+ n = (unsigned)(eol - state->x.next) + 1;
/* copy through end-of-line, or remainder if not found */
- memcpy(buf, state->next, n);
- state->have -= n;
- state->next += n;
- state->pos += n;
+ memcpy(buf, state->x.next, n);
+ state->x.have -= n;
+ state->x.next += n;
+ state->x.pos += n;
left -= n;
buf += n;
} while (left && eol == NULL);
- /* found end-of-line or out of space -- terminate string and return it */
+ /* return terminated string, or if nothing, end of file */
+ if (buf == str)
+ return NULL;
buf[0] = 0;
return str;
}
@@ -610,16 +544,12 @@
return 0;
state = (gz_statep)file;
- /* check that we're reading */
- if (state->mode != GZ_READ)
- return 0;
-
/* if the state is not known, but we can find out, then do so (this is
mainly for right after a gzopen() or gzdopen()) */
- if (state->how == LOOK && state->have == 0)
- (void)gz_head(state);
+ if (state->mode == GZ_READ && state->how == LOOK && state->x.have == 0)
+ (void)gz_look(state);
- /* return 1 if reading direct, 0 if decompressing a gzip stream */
+ /* return 1 if transparent, 0 if processing a gzip stream */
return state->direct;
}
@@ -627,7 +557,7 @@
int ZEXPORT gzclose_r(file)
gzFile file;
{
- int ret;
+ int ret, err;
gz_statep state;
/* get internal structure */
@@ -645,9 +575,10 @@
free(state->out);
free(state->in);
}
+ err = state->err == Z_BUF_ERROR ? Z_BUF_ERROR : Z_OK;
gz_error(state, Z_OK, NULL);
free(state->path);
ret = close(state->fd);
free(state);
- return ret ? Z_ERRNO : Z_OK;
+ return ret ? Z_ERRNO : err;
}
diff --git a/gzwrite.c b/gzwrite.c
index e8defc6..caa35b6 100644
--- a/gzwrite.c
+++ b/gzwrite.c
@@ -1,5 +1,5 @@
/* gzwrite.c -- zlib functions for writing gzip files
- * Copyright (C) 2004, 2005, 2010 Mark Adler
+ * Copyright (C) 2004, 2005, 2010, 2011, 2012 Mark Adler
* For conditions of distribution and use, see copyright notice in zlib.h
*/
@@ -18,44 +18,55 @@
int ret;
z_streamp strm = &(state->strm);
- /* allocate input and output buffers */
+ /* allocate input buffer */
state->in = malloc(state->want);
- state->out = malloc(state->want);
- if (state->in == NULL || state->out == NULL) {
- if (state->out != NULL)
- free(state->out);
- if (state->in != NULL)
- free(state->in);
+ if (state->in == NULL) {
gz_error(state, Z_MEM_ERROR, "out of memory");
return -1;
}
- /* allocate deflate memory, set up for gzip compression */
- strm->zalloc = Z_NULL;
- strm->zfree = Z_NULL;
- strm->opaque = Z_NULL;
- ret = deflateInit2(strm, state->level, Z_DEFLATED,
- 15 + 16, 8, state->strategy);
- if (ret != Z_OK) {
- free(state->in);
- gz_error(state, Z_MEM_ERROR, "out of memory");
- return -1;
+ /* only need output buffer and deflate state if compressing */
+ if (!state->direct) {
+ /* allocate output buffer */
+ state->out = malloc(state->want);
+ if (state->out == NULL) {
+ free(state->in);
+ gz_error(state, Z_MEM_ERROR, "out of memory");
+ return -1;
+ }
+
+ /* allocate deflate memory, set up for gzip compression */
+ strm->zalloc = Z_NULL;
+ strm->zfree = Z_NULL;
+ strm->opaque = Z_NULL;
+ ret = deflateInit2(strm, state->level, Z_DEFLATED,
+ MAX_WBITS + 16, DEF_MEM_LEVEL, state->strategy);
+ if (ret != Z_OK) {
+ free(state->out);
+ free(state->in);
+ gz_error(state, Z_MEM_ERROR, "out of memory");
+ return -1;
+ }
}
/* mark state as initialized */
state->size = state->want;
- /* initialize write buffer */
- strm->avail_out = state->size;
- strm->next_out = state->out;
- state->next = strm->next_out;
+ /* initialize write buffer if compressing */
+ if (!state->direct) {
+ strm->avail_out = state->size;
+ strm->next_out = state->out;
+ state->x.next = strm->next_out;
+ }
return 0;
}
/* Compress whatever is at avail_in and next_in and write to the output file.
Return -1 if there is an error writing to the output file, otherwise 0.
flush is assumed to be a valid deflate() flush value. If flush is Z_FINISH,
- then the deflate() state is reset to start a new gzip stream. */
+ then the deflate() state is reset to start a new gzip stream. If gz->direct
+ is true, then simply write to the output file without compressing, and
+ ignore flush. */
local int gz_comp(state, flush)
gz_statep state;
int flush;
@@ -68,6 +79,17 @@
if (state->size == 0 && gz_init(state) == -1)
return -1;
+ /* write directly if requested */
+ if (state->direct) {
+ got = write(state->fd, strm->next_in, strm->avail_in);
+ if (got < 0 || (unsigned)got != strm->avail_in) {
+ gz_error(state, Z_ERRNO, zstrerror());
+ return -1;
+ }
+ strm->avail_in = 0;
+ return 0;
+ }
+
/* run deflate() on provided input until it produces no more output */
ret = Z_OK;
do {
@@ -75,8 +97,8 @@
doing Z_FINISH then don't write until we get to Z_STREAM_END */
if (strm->avail_out == 0 || (flush != Z_NO_FLUSH &&
(flush != Z_FINISH || ret == Z_STREAM_END))) {
- have = (unsigned)(strm->next_out - state->next);
- if (have && ((got = write(state->fd, state->next, have)) < 0 ||
+ have = (unsigned)(strm->next_out - state->x.next);
+ if (have && ((got = write(state->fd, state->x.next, have)) < 0 ||
(unsigned)got != have)) {
gz_error(state, Z_ERRNO, zstrerror());
return -1;
@@ -85,7 +107,7 @@
strm->avail_out = state->size;
strm->next_out = state->out;
}
- state->next = strm->next_out;
+ state->x.next = strm->next_out;
}
/* compress */
@@ -131,7 +153,7 @@
}
strm->avail_in = n;
strm->next_in = state->in;
- state->pos += n;
+ state->x.pos += n;
if (gz_comp(state, Z_NO_FLUSH) == -1)
return -1;
len -= n;
@@ -163,7 +185,7 @@
/* since an int is returned, make sure len fits in one, otherwise return
with an error (this avoids the flaw in the interface) */
if ((int)len < 0) {
- gz_error(state, Z_BUF_ERROR, "requested length does not fit in int");
+ gz_error(state, Z_DATA_ERROR, "requested length does not fit in int");
return 0;
}
@@ -193,7 +215,7 @@
n = len;
memcpy(strm->next_in + strm->avail_in, buf, n);
strm->avail_in += n;
- state->pos += n;
+ state->x.pos += n;
buf = (char *)buf + n;
len -= n;
if (len && gz_comp(state, Z_NO_FLUSH) == -1)
@@ -208,7 +230,7 @@
/* directly compress user buffer to file */
strm->avail_in = len;
strm->next_in = (voidp)buf;
- state->pos += len;
+ state->x.pos += len;
if (gz_comp(state, Z_NO_FLUSH) == -1)
return 0;
}
@@ -249,15 +271,15 @@
if (strm->avail_in == 0)
strm->next_in = state->in;
strm->next_in[strm->avail_in++] = c;
- state->pos++;
- return c;
+ state->x.pos++;
+ return c & 0xff;
}
/* no room in buffer or not initialized, use gz_write() */
buf[0] = c;
if (gzwrite(file, buf, 1) != 1)
return -1;
- return c;
+ return c & 0xff;
}
/* -- see zlib.h -- */
@@ -274,7 +296,7 @@
return ret == 0 && len != 0 ? -1 : ret;
}
-#ifdef STDC
+#if defined(STDC) || defined(Z_HAVE_STDARG_H)
#include <stdarg.h>
/* -- see zlib.h -- */
@@ -342,11 +364,11 @@
/* update buffer and position, defer compression until needed */
strm->avail_in = (unsigned)len;
strm->next_in = state->in;
- state->pos += len;
+ state->x.pos += len;
return len;
}
-#else /* !STDC */
+#else /* !STDC && !Z_HAVE_STDARG_H */
/* -- see zlib.h -- */
int ZEXPORTVA gzprintf (file, format, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10,
@@ -366,6 +388,10 @@
state = (gz_statep)file;
strm = &(state->strm);
+ /* check that can really pass pointer in ints */
+ if (sizeof(int) != sizeof(void *))
+ return 0;
+
/* check that we're writing and that there's no error */
if (state->mode != GZ_WRITE || state->err != Z_OK)
return 0;
@@ -416,7 +442,7 @@
/* update buffer and position, defer compression until needed */
strm->avail_in = (unsigned)len;
strm->next_in = state->in;
- state->pos += len;
+ state->x.pos += len;
return len;
}
@@ -500,7 +526,7 @@
int ZEXPORT gzclose_w(file)
gzFile file;
{
- int ret = 0;
+ int ret = Z_OK;
gz_statep state;
/* get internal structure */
@@ -515,17 +541,53 @@
/* check for seek request */
if (state->seek) {
state->seek = 0;
- ret += gz_zero(state, state->skip);
+ if (gz_zero(state, state->skip) == -1)
+ ret = state->err;
}
/* flush, free memory, and close file */
- ret += gz_comp(state, Z_FINISH);
- (void)deflateEnd(&(state->strm));
- free(state->out);
+ if (gz_comp(state, Z_FINISH) == -1)
+ ret = state->err;
+ if (!state->direct) {
+ (void)deflateEnd(&(state->strm));
+ free(state->out);
+ }
free(state->in);
gz_error(state, Z_OK, NULL);
free(state->path);
- ret += close(state->fd);
+ if (close(state->fd) == -1)
+ ret = Z_ERRNO;
free(state);
- return ret ? Z_ERRNO : Z_OK;
+ return ret;
+}
+
+/* used by zlibVersion() to get the vsnprintf story from the horse's mouth */
+unsigned long ZEXPORT gzflags()
+{
+ unsigned long flags = 0;
+#if defined(STDC) || defined(Z_HAVE_STDARG_H)
+# ifdef NO_vsnprintf
+ flags += 1L << 25;
+# ifdef HAS_vsprintf_void
+ flags += 1L << 26;
+# endif
+# else
+# ifdef HAS_vsnprintf_void
+ flags += 1L << 26;
+# endif
+# endif
+#else
+ flags += 1L << 24;
+# ifdef NO_snprintf
+ flags += 1L << 25;
+# ifdef HAS_sprintf_void
+ flags += 1L << 26;
+# endif
+# else
+# ifdef HAS_snprintf_void
+ flags += 1L << 26;
+# endif
+# endif
+#endif
+ return flags;
}
diff --git a/infback.c b/infback.c
index af3a8c9..981aff1 100644
--- a/infback.c
+++ b/infback.c
@@ -1,5 +1,5 @@
/* infback.c -- inflate using a call-back interface
- * Copyright (C) 1995-2009 Mark Adler
+ * Copyright (C) 1995-2011 Mark Adler
* For conditions of distribution and use, see copyright notice in zlib.h
*/
@@ -42,10 +42,19 @@
return Z_STREAM_ERROR;
strm->msg = Z_NULL; /* in case we return an error */
if (strm->zalloc == (alloc_func)0) {
+#ifdef Z_SOLO
+ return Z_STREAM_ERROR;
+#else
strm->zalloc = zcalloc;
strm->opaque = (voidpf)0;
+#endif
}
- if (strm->zfree == (free_func)0) strm->zfree = zcfree;
+ if (strm->zfree == (free_func)0)
+#ifdef Z_SOLO
+ return Z_STREAM_ERROR;
+#else
+ strm->zfree = zcfree;
+#endif
state = (struct inflate_state FAR *)ZALLOC(strm, 1,
sizeof(struct inflate_state));
if (state == Z_NULL) return Z_MEM_ERROR;
@@ -394,7 +403,6 @@
PULLBYTE();
}
if (here.val < 16) {
- NEEDBITS(here.bits);
DROPBITS(here.bits);
state->lens[state->have++] = here.val;
}
diff --git a/inffixed.h b/inffixed.h
index 75ed4b5..d628327 100644
--- a/inffixed.h
+++ b/inffixed.h
@@ -2,9 +2,9 @@
* Generated automatically by makefixed().
*/
- /* 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.
+ /* 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] = {
diff --git a/inflate.c b/inflate.c
index a8431ab..cc89517 100644
--- a/inflate.c
+++ b/inflate.c
@@ -1,5 +1,5 @@
/* inflate.c -- zlib decompression
- * Copyright (C) 1995-2010 Mark Adler
+ * Copyright (C) 1995-2011 Mark Adler
* For conditions of distribution and use, see copyright notice in zlib.h
*/
@@ -100,7 +100,7 @@
local unsigned syncsearch OF((unsigned FAR *have, unsigned char FAR *buf,
unsigned len));
-int ZEXPORT inflateReset(strm)
+int ZEXPORT inflateResetKeep(strm)
z_streamp strm;
{
struct inflate_state FAR *state;
@@ -109,15 +109,13 @@
state = (struct inflate_state FAR *)strm->state;
strm->total_in = strm->total_out = state->total = 0;
strm->msg = Z_NULL;
- strm->adler = 1; /* to support ill-conceived Java test suite */
+ if (state->wrap) /* to support ill-conceived Java test suite */
+ strm->adler = state->wrap & 1;
state->mode = HEAD;
state->last = 0;
state->havedict = 0;
state->dmax = 32768U;
state->head = Z_NULL;
- state->wsize = 0;
- state->whave = 0;
- state->wnext = 0;
state->hold = 0;
state->bits = 0;
state->lencode = state->distcode = state->next = state->codes;
@@ -127,6 +125,19 @@
return Z_OK;
}
+int ZEXPORT inflateReset(strm)
+z_streamp strm;
+{
+ struct inflate_state FAR *state;
+
+ if (strm == Z_NULL || strm->state == Z_NULL) return Z_STREAM_ERROR;
+ state = (struct inflate_state FAR *)strm->state;
+ state->wsize = 0;
+ state->whave = 0;
+ state->wnext = 0;
+ return inflateResetKeep(strm);
+}
+
int ZEXPORT inflateReset2(strm, windowBits)
z_streamp strm;
int windowBits;
@@ -180,10 +191,19 @@
if (strm == Z_NULL) return Z_STREAM_ERROR;
strm->msg = Z_NULL; /* in case we return an error */
if (strm->zalloc == (alloc_func)0) {
+#ifdef Z_SOLO
+ return Z_STREAM_ERROR;
+#else
strm->zalloc = zcalloc;
strm->opaque = (voidpf)0;
+#endif
}
- if (strm->zfree == (free_func)0) strm->zfree = zcfree;
+ if (strm->zfree == (free_func)0)
+#ifdef Z_SOLO
+ return Z_STREAM_ERROR;
+#else
+ strm->zfree = zcfree;
+#endif
state = (struct inflate_state FAR *)
ZALLOC(strm, 1, sizeof(struct inflate_state));
if (state == Z_NULL) return Z_MEM_ERROR;
@@ -321,8 +341,8 @@
low = 0;
for (;;) {
if ((low % 7) == 0) printf("\n ");
- printf("{%u,%u,%d}", state.lencode[low].op, state.lencode[low].bits,
- state.lencode[low].val);
+ printf("{%u,%u,%d}", (low & 127) == 99 ? 64 : state.lencode[low].op,
+ state.lencode[low].bits, state.lencode[low].val);
if (++low == size) break;
putchar(',');
}
@@ -925,7 +945,6 @@
PULLBYTE();
}
if (here.val < 16) {
- NEEDBITS(here.bits);
DROPBITS(here.bits);
state->lens[state->have++] = here.val;
}
@@ -1214,7 +1233,8 @@
*/
inf_leave:
RESTORE();
- if (state->wsize || (state->mode < CHECK && out != strm->avail_out))
+ if (state->wsize || (out != strm->avail_out && state->mode < BAD &&
+ (state->mode < CHECK || flush != Z_FINISH)))
if (updatewindow(strm, out)) {
state->mode = MEM;
return Z_MEM_ERROR;
@@ -1256,6 +1276,9 @@
{
struct inflate_state FAR *state;
unsigned long id;
+ unsigned char *next;
+ unsigned avail;
+ int ret;
/* check state */
if (strm == Z_NULL || strm->state == Z_NULL) return Z_STREAM_ERROR;
@@ -1271,21 +1294,19 @@
return Z_DATA_ERROR;
}
- /* copy dictionary to window */
- if (updatewindow(strm, strm->avail_out)) {
+ /* copy dictionary to window using updatewindow(), which will amend the
+ existing dictionary if appropriate */
+ next = strm->next_out;
+ avail = strm->avail_out;
+ strm->next_out = (Bytef *)dictionary + dictLength;
+ strm->avail_out = 0;
+ ret = updatewindow(strm, dictLength);
+ strm->avail_out = avail;
+ strm->next_out = next;
+ if (ret) {
state->mode = MEM;
return Z_MEM_ERROR;
}
- if (dictLength > state->wsize) {
- zmemcpy(state->window, dictionary + dictLength - state->wsize,
- state->wsize);
- state->whave = state->wsize;
- }
- else {
- zmemcpy(state->window + state->wsize - dictLength, dictionary,
- dictLength);
- state->whave = dictLength;
- }
state->havedict = 1;
Tracev((stderr, "inflate: dictionary set\n"));
return Z_OK;
@@ -1433,8 +1454,8 @@
}
/* copy state */
- zmemcpy(dest, source, sizeof(z_stream));
- zmemcpy(copy, state, sizeof(struct inflate_state));
+ zmemcpy((voidpf)dest, (voidpf)source, sizeof(z_stream));
+ zmemcpy((voidpf)copy, (voidpf)state, sizeof(struct inflate_state));
if (state->lencode >= state->codes &&
state->lencode <= state->codes + ENOUGH - 1) {
copy->lencode = copy->codes + (state->lencode - state->codes);
diff --git a/inftrees.c b/inftrees.c
index 11e9c52..60bbd58 100644
--- a/inftrees.c
+++ b/inftrees.c
@@ -1,5 +1,5 @@
/* inftrees.c -- generate Huffman trees for efficient decoding
- * Copyright (C) 1995-2010 Mark Adler
+ * Copyright (C) 1995-2012 Mark Adler
* For conditions of distribution and use, see copyright notice in zlib.h
*/
@@ -9,7 +9,7 @@
#define MAXBITS 15
const char inflate_copyright[] =
- " inflate 1.2.5 Copyright 1995-2010 Mark Adler ";
+ " inflate 1.2.6 Copyright 1995-2012 Mark Adler ";
/*
If you use the zlib library in a product, an acknowledgment is welcome
in the documentation of your product. If for some reason you cannot
@@ -62,7 +62,7 @@
35, 43, 51, 59, 67, 83, 99, 115, 131, 163, 195, 227, 258, 0, 0};
static const unsigned short lext[31] = { /* Length codes 257..285 extra */
16, 16, 16, 16, 16, 16, 16, 16, 17, 17, 17, 17, 18, 18, 18, 18,
- 19, 19, 19, 19, 20, 20, 20, 20, 21, 21, 21, 21, 16, 73, 195};
+ 19, 19, 19, 19, 20, 20, 20, 20, 21, 21, 21, 21, 16, 203, 69};
static const unsigned short dbase[32] = { /* Distance codes 0..29 base */
1, 2, 3, 4, 5, 7, 9, 13, 17, 25, 33, 49, 65, 97, 129, 193,
257, 385, 513, 769, 1025, 1537, 2049, 3073, 4097, 6145,
@@ -289,38 +289,14 @@
}
}
- /*
- 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.
- */
- here.op = (unsigned char)64; /* invalid code marker */
- here.bits = (unsigned char)(len - drop);
- here.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;
- here.bits = (unsigned char)len;
- }
-
- /* put invalid code marker in table */
- next[huff >> drop] = here;
-
- /* 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;
+ /* fill in remaining table entry if code is incomplete (guaranteed to have
+ at most one remaining entry, since if the code is incomplete, the
+ maximum code length that was allowed to get this far is one bit) */
+ if (huff != 0) {
+ here.op = (unsigned char)64; /* invalid code marker */
+ here.bits = (unsigned char)(len - drop);
+ here.val = (unsigned short)0;
+ next[huff] = here;
}
/* set return parameters */
diff --git a/make_vms.com b/make_vms.com
index 6576490..11be527 100644
--- a/make_vms.com
+++ b/make_vms.com
@@ -175,13 +175,13 @@
$ CALL MAKE libz.OLB "lib/crea libz.olb *.obj" *.OBJ
$ write sys$output "Building example..."
$ CALL MAKE example.OBJ "CC ''CCOPT' example" -
- example.c zlib.h zconf.h
+ test/example.c zlib.h zconf.h
$ call make example.exe "LINK example,libz.olb/lib" example.obj libz.olb
$ if f$search("x11vms:xvmsutils.olb") .nes. ""
$ then
$ write sys$output "Building minigzip..."
$ CALL MAKE minigzip.OBJ "CC ''CCOPT' minigzip" -
- minigzip.c zlib.h zconf.h
+ test/minigzip.c zlib.h zconf.h
$ call make minigzip.exe -
"LINK minigzip,libz.olb/lib,x11vms:xvmsutils.olb/lib" -
minigzip.obj libz.olb
@@ -431,7 +431,7 @@
compress.obj : compress.c zlib.h zconf.h
crc32.obj : crc32.c zutil.h zlib.h zconf.h
deflate.obj : deflate.c deflate.h zutil.h zlib.h zconf.h
-example.obj : example.c zlib.h zconf.h
+example.obj : test/example.c zlib.h zconf.h
gzclose.obj : gzclose.c zutil.h zlib.h zconf.h
gzlib.obj : gzlib.c zutil.h zlib.h zconf.h
gzread.obj : gzread.c zutil.h zlib.h zconf.h
@@ -439,7 +439,7 @@
inffast.obj : inffast.c zutil.h zlib.h zconf.h inftrees.h inffast.h
inflate.obj : inflate.c zutil.h zlib.h zconf.h
inftrees.obj : inftrees.c zutil.h zlib.h zconf.h inftrees.h
-minigzip.obj : minigzip.c zlib.h zconf.h
+minigzip.obj : test/minigzip.c zlib.h zconf.h
trees.obj : trees.c deflate.h zutil.h zlib.h zconf.h
uncompr.obj : uncompr.c zlib.h zconf.h
zutil.obj : zutil.c zutil.h zlib.h zconf.h
diff --git a/msdos/Makefile.bor b/msdos/Makefile.bor
index 0c1b99c..3d12a2c 100644
--- a/msdos/Makefile.bor
+++ b/msdos/Makefile.bor
@@ -86,9 +86,9 @@
zutil.obj: zutil.c zutil.h zlib.h zconf.h
-example.obj: example.c zlib.h zconf.h
+example.obj: test/example.c zlib.h zconf.h
-minigzip.obj: minigzip.c zlib.h zconf.h
+minigzip.obj: test/minigzip.c zlib.h zconf.h
# the command line is cut to fit in the MS-DOS 128 byte limit:
diff --git a/msdos/Makefile.msc b/msdos/Makefile.msc
index cd2816f..ae83786 100644
--- a/msdos/Makefile.msc
+++ b/msdos/Makefile.msc
@@ -80,10 +80,10 @@
zutil.obj: zutil.c zutil.h zlib.h zconf.h
-example.obj: example.c zlib.h zconf.h
+example.obj: test/example.c zlib.h zconf.h
$(CC) -c $(CFLAGS) $*.c
-minigzip.obj: minigzip.c zlib.h zconf.h
+minigzip.obj: test/minigzip.c zlib.h zconf.h
$(CC) -c $(CFLAGS) $*.c
diff --git a/msdos/Makefile.tc b/msdos/Makefile.tc
index bcd0d18..5aec82a 100644
--- a/msdos/Makefile.tc
+++ b/msdos/Makefile.tc
@@ -71,9 +71,9 @@
zutil.obj: zutil.c zutil.h zlib.h zconf.h
-example.obj: example.c zlib.h zconf.h
+example.obj: test/example.c zlib.h zconf.h
-minigzip.obj: minigzip.c zlib.h zconf.h
+minigzip.obj: test/minigzip.c zlib.h zconf.h
# the command line is cut to fit in the MS-DOS 128 byte limit:
diff --git a/projects/README.projects b/projects/README.projects
deleted file mode 100644
index 1c029e4..0000000
--- a/projects/README.projects
+++ /dev/null
@@ -1,41 +0,0 @@
-This directory contains project files for building zlib under various
-Integrated Development Environments (IDE).
-
-If you wish to submit a new project to this directory, you should comply
-to the following requirements. Otherwise (e.g. if you wish to integrate
-a custom piece of code that changes the zlib interface or its behavior),
-please consider submitting the project to the contrib directory.
-
-
-Requirements
-============
-
-- The project must build zlib using the source files from the official
- zlib source distribution, exclusively.
-
-- If the project produces redistributable builds (e.g. shared objects
- or DLL files), these builds must be compatible to those produced by
- makefiles, if such makefiles exist in the zlib distribution.
- In particular, if the project produces a DLL build for the Win32
- platform, this build must comply to the officially-ammended Win32 DLL
- Application Binary Interface (ABI), described in win32/DLL_FAQ.txt.
-
-- The project may provide additional build targets, which depend on
- 3rd-party (unofficially-supported) software, present in the contrib
- directory. For example, it is possible to provide an "ASM build",
- besides the officially-supported build, and have ASM source files
- among its dependencies.
-
-- If there are significant differences between the project files created
- by different versions of an IDE (e.g. Visual C++ 6.0 vs. 7.0), the name
- of the project directory should contain the version number of the IDE
- for which the project is intended (e.g. "visualc6" for Visual C++ 6.0,
- or "visualc7" for Visual C++ 7.0 and 7.1).
-
-
-Current projects
-================
-
-visualc6/ by Simon-Pierre Cadieux <methodex@methodex.ca>
- and Cosmin Truta <cosmint@cs.ubbcluj.ro>
- Project for Microsoft Visual C++ 6.0
diff --git a/projects/visualc6/README.txt b/projects/visualc6/README.txt
deleted file mode 100644
index d0296c2..0000000
--- a/projects/visualc6/README.txt
+++ /dev/null
@@ -1,73 +0,0 @@
-Microsoft Developer Studio Project Files, Format Version 6.00 for zlib.
-
-Copyright (C) 2000-2004 Simon-Pierre Cadieux.
-Copyright (C) 2004 Cosmin Truta.
-For conditions of distribution and use, see copyright notice in zlib.h.
-
-
-This project builds the zlib binaries as follows:
-
-* Win32_DLL_Release\zlib1.dll DLL build
-* Win32_DLL_Debug\zlib1d.dll DLL build (debug version)
-* Win32_DLL_ASM_Release\zlib1.dll DLL build using ASM code
-* Win32_DLL_ASM_Debug\zlib1d.dll DLL build using ASM code (debug version)
-* Win32_LIB_Release\zlib.lib static build
-* Win32_LIB_Debug\zlibd.lib static build (debug version)
-* Win32_LIB_ASM_Release\zlib.lib static build using ASM code
-* Win32_LIB_ASM_Debug\zlibd.lib static build using ASM code (debug version)
-
-
-For more information regarding the DLL builds, please see the DLL FAQ
-in ..\..\win32\DLL_FAQ.txt.
-
-
-To build and test:
-
-1) On the main menu, select "File | Open Workspace".
- Open "zlib.dsw".
-
-2) Select "Build | Set Active Configuration".
- Choose the configuration you wish to build.
-
-3) Select "Build | Clean".
-
-4) Select "Build | Build ... (F7)". Ignore warning messages about
- not being able to find certain include files (e.g. alloc.h).
-
-5) If you built one of the sample programs (example or minigzip),
- select "Build | Execute ... (Ctrl+F5)".
-
-
-To use:
-
-1) Select "Project | Settings (Alt+F7)".
- Make note of the configuration names used in your project.
- Usually, these names are "Win32 Release" and "Win32 Debug".
-
-2) In the Workspace window, select the "FileView" tab.
- Right-click on the root item "Workspace '...'".
- Select "Insert Project into Workspace".
- Switch on the checkbox "Dependency of:", and select the name
- of your project. Open "zlib.dsp".
-
-3) Select "Build | Configurations".
- For each configuration of your project:
- 3.1) Choose the zlib configuration you wish to use.
- 3.2) Click on "Add".
- 3.3) Set the new zlib configuration name to the name used by
- the configuration from the current iteration.
-
-4) Select "Build | Set Active Configuration".
- Choose the configuration you wish to build.
-
-5) Select "Build | Build ... (F7)".
-
-6) If you built an executable program, select
- "Build | Execute ... (Ctrl+F5)".
-
-
-Note:
-
-To build the ASM-enabled code, you need Microsoft Assembler
-(ML.EXE). You can get it by downloading and installing the
-latest Processor Pack for Visual C++ 6.0.
diff --git a/projects/visualc6/example.dsp b/projects/visualc6/example.dsp
deleted file mode 100644
index d358052..0000000
--- a/projects/visualc6/example.dsp
+++ /dev/null
@@ -1,278 +0,0 @@
-# Microsoft Developer Studio Project File - Name="example" - Package Owner=<4>
-# Microsoft Developer Studio Generated Build File, Format Version 6.00
-# ** DO NOT EDIT **
-
-# TARGTYPE "Win32 (x86) Console Application" 0x0103
-
-CFG=example - Win32 LIB Debug
-!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 "example.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 "example.mak" CFG="example - Win32 LIB Debug"
-!MESSAGE
-!MESSAGE Possible choices for configuration are:
-!MESSAGE
-!MESSAGE "example - Win32 DLL ASM Release" (based on "Win32 (x86) Console Application")
-!MESSAGE "example - Win32 DLL ASM Debug" (based on "Win32 (x86) Console Application")
-!MESSAGE "example - Win32 DLL Release" (based on "Win32 (x86) Console Application")
-!MESSAGE "example - Win32 DLL Debug" (based on "Win32 (x86) Console Application")
-!MESSAGE "example - Win32 LIB ASM Release" (based on "Win32 (x86) Console Application")
-!MESSAGE "example - Win32 LIB ASM Debug" (based on "Win32 (x86) Console Application")
-!MESSAGE "example - Win32 LIB Release" (based on "Win32 (x86) Console Application")
-!MESSAGE "example - Win32 LIB Debug" (based on "Win32 (x86) Console Application")
-!MESSAGE
-
-# Begin Project
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diff --git a/projects/visualc6/minigzip.dsp b/projects/visualc6/minigzip.dsp
deleted file mode 100644
index 7103468..0000000
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- ml.exe /nologo /c /coff /Cx /Zi /Fo"$(IntDir)\$(InputName).obj" "$(InputPath)"
-
-# End Custom Build
-
-!ELSEIF "$(CFG)" == "zlib - Win32 DLL Release"
-
-# PROP Exclude_From_Build 1
-
-!ELSEIF "$(CFG)" == "zlib - Win32 DLL Debug"
-
-# PROP Exclude_From_Build 1
-
-!ELSEIF "$(CFG)" == "zlib - Win32 LIB ASM Release"
-
-# Begin Custom Build - Assembling...
-IntDir=.\Win32_LIB_ASM_Release
-InputPath=..\..\contrib\masmx86\gvmat32.asm
-InputName=gvmat32
-
-"$(IntDir)\$(InputName).obj" : $(SOURCE) "$(INTDIR)" "$(OUTDIR)"
- ml.exe /nologo /c /coff /Cx /Fo"$(IntDir)\$(InputName).obj" "$(InputPath)"
-
-# End Custom Build
-
-!ELSEIF "$(CFG)" == "zlib - Win32 LIB ASM Debug"
-
-# Begin Custom Build - Assembling...
-IntDir=.\Win32_LIB_ASM_Debug
-InputPath=..\..\contrib\masmx86\gvmat32.asm
-InputName=gvmat32
-
-"$(IntDir)\$(InputName).obj" : $(SOURCE) "$(INTDIR)" "$(OUTDIR)"
- ml.exe /nologo /c /coff /Cx /Zi /Fo"$(IntDir)\$(InputName).obj" "$(InputPath)"
-
-# End Custom Build
-
-!ELSEIF "$(CFG)" == "zlib - Win32 LIB Release"
-
-# PROP Exclude_From_Build 1
-
-!ELSEIF "$(CFG)" == "zlib - Win32 LIB Debug"
-
-# PROP Exclude_From_Build 1
-
-!ENDIF
-
-# End Source File
-# Begin Source File
-
-SOURCE=..\..\contrib\masmx86\gvmat32c.c
-
-!IF "$(CFG)" == "zlib - Win32 DLL ASM Release"
-
-# ADD CPP /I "..\.."
-
-!ELSEIF "$(CFG)" == "zlib - Win32 DLL ASM Debug"
-
-# ADD CPP /I "..\.."
-
-!ELSEIF "$(CFG)" == "zlib - Win32 DLL Release"
-
-# PROP Exclude_From_Build 1
-# ADD CPP /I "..\.."
-
-!ELSEIF "$(CFG)" == "zlib - Win32 DLL Debug"
-
-# PROP Exclude_From_Build 1
-# ADD CPP /I "..\.."
-
-!ELSEIF "$(CFG)" == "zlib - Win32 LIB ASM Release"
-
-# ADD CPP /I "..\.."
-
-!ELSEIF "$(CFG)" == "zlib - Win32 LIB ASM Debug"
-
-# ADD CPP /I "..\.."
-
-!ELSEIF "$(CFG)" == "zlib - Win32 LIB Release"
-
-# PROP Exclude_From_Build 1
-# ADD CPP /I "..\.."
-
-!ELSEIF "$(CFG)" == "zlib - Win32 LIB Debug"
-
-# PROP Exclude_From_Build 1
-# ADD CPP /I "..\.."
-
-!ENDIF
-
-# End Source File
-# Begin Source File
-
-SOURCE=..\..\contrib\masmx86\inffas32.asm
-
-!IF "$(CFG)" == "zlib - Win32 DLL ASM Release"
-
-# Begin Custom Build - Assembling...
-IntDir=.\Win32_DLL_ASM_Release
-InputPath=..\..\contrib\masmx86\inffas32.asm
-InputName=inffas32
-
-"$(IntDir)\$(InputName).obj" : $(SOURCE) "$(INTDIR)" "$(OUTDIR)"
- ml.exe /nologo /c /coff /Cx /Fo"$(IntDir)\$(InputName).obj" "$(InputPath)"
-
-# End Custom Build
-
-!ELSEIF "$(CFG)" == "zlib - Win32 DLL ASM Debug"
-
-# Begin Custom Build - Assembling...
-IntDir=.\Win32_DLL_ASM_Debug
-InputPath=..\..\contrib\masmx86\inffas32.asm
-InputName=inffas32
-
-"$(IntDir)\$(InputName).obj" : $(SOURCE) "$(INTDIR)" "$(OUTDIR)"
- ml.exe /nologo /c /coff /Cx /Zi /Fo"$(IntDir)\$(InputName).obj" "$(InputPath)"
-
-# End Custom Build
-
-!ELSEIF "$(CFG)" == "zlib - Win32 DLL Release"
-
-# PROP Exclude_From_Build 1
-
-!ELSEIF "$(CFG)" == "zlib - Win32 DLL Debug"
-
-# PROP Exclude_From_Build 1
-
-!ELSEIF "$(CFG)" == "zlib - Win32 LIB ASM Release"
-
-# Begin Custom Build - Assembling...
-IntDir=.\Win32_LIB_ASM_Release
-InputPath=..\..\contrib\masmx86\inffas32.asm
-InputName=inffas32
-
-"$(IntDir)\$(InputName).obj" : $(SOURCE) "$(INTDIR)" "$(OUTDIR)"
- ml.exe /nologo /c /coff /Cx /Fo"$(IntDir)\$(InputName).obj" "$(InputPath)"
-
-# End Custom Build
-
-!ELSEIF "$(CFG)" == "zlib - Win32 LIB ASM Debug"
-
-# Begin Custom Build - Assembling...
-IntDir=.\Win32_LIB_ASM_Debug
-InputPath=..\..\contrib\masmx86\inffas32.asm
-InputName=inffas32
-
-"$(IntDir)\$(InputName).obj" : $(SOURCE) "$(INTDIR)" "$(OUTDIR)"
- ml.exe /nologo /c /coff /Cx /Zi /Fo"$(IntDir)\$(InputName).obj" "$(InputPath)"
-
-# End Custom Build
-
-!ELSEIF "$(CFG)" == "zlib - Win32 LIB Release"
-
-# PROP Exclude_From_Build 1
-
-!ELSEIF "$(CFG)" == "zlib - Win32 LIB Debug"
-
-# PROP Exclude_From_Build 1
-
-!ENDIF
-
-# End Source File
-# End Group
-# Begin Source File
-
-SOURCE=.\README.txt
-# End Source File
-# End Target
-# End Project
diff --git a/projects/visualc6/zlib.dsw b/projects/visualc6/zlib.dsw
deleted file mode 100644
index 3a771fc..0000000
--- a/projects/visualc6/zlib.dsw
+++ /dev/null
@@ -1,59 +0,0 @@
-Microsoft Developer Studio Workspace File, Format Version 6.00
-# WARNING: DO NOT EDIT OR DELETE THIS WORKSPACE FILE!
-
-###############################################################################
-
-Project: "example"=.\example.dsp - Package Owner=<4>
-
-Package=<5>
-{{{
-}}}
-
-Package=<4>
-{{{
- Begin Project Dependency
- Project_Dep_Name zlib
- End Project Dependency
-}}}
-
-###############################################################################
-
-Project: "minigzip"=.\minigzip.dsp - Package Owner=<4>
-
-Package=<5>
-{{{
-}}}
-
-Package=<4>
-{{{
- Begin Project Dependency
- Project_Dep_Name zlib
- End Project Dependency
-}}}
-
-###############################################################################
-
-Project: "zlib"=.\zlib.dsp - Package Owner=<4>
-
-Package=<5>
-{{{
-}}}
-
-Package=<4>
-{{{
-}}}
-
-###############################################################################
-
-Global:
-
-Package=<5>
-{{{
-}}}
-
-Package=<3>
-{{{
-}}}
-
-###############################################################################
-
diff --git a/qnx/package.qpg b/qnx/package.qpg
index 2bc63b2..4d7ea6a 100644
--- a/qnx/package.qpg
+++ b/qnx/package.qpg
@@ -25,10 +25,10 @@
<QPG:Files>
<QPG:Add file="../zconf.h" install="/opt/include/" user="root:sys" permission="644"/>
<QPG:Add file="../zlib.h" install="/opt/include/" user="root:sys" permission="644"/>
- <QPG:Add file="../libz.so.1.2.5" install="/opt/lib/" user="root:bin" permission="644"/>
- <QPG:Add file="libz.so" install="/opt/lib/" component="dev" filetype="symlink" linkto="libz.so.1.2.5"/>
- <QPG:Add file="libz.so.1" install="/opt/lib/" filetype="symlink" linkto="libz.so.1.2.5"/>
- <QPG:Add file="../libz.so.1.2.5" install="/opt/lib/" component="slib"/>
+ <QPG:Add file="../libz.so.1.2.6" install="/opt/lib/" user="root:bin" permission="644"/>
+ <QPG:Add file="libz.so" install="/opt/lib/" component="dev" filetype="symlink" linkto="libz.so.1.2.6"/>
+ <QPG:Add file="libz.so.1" install="/opt/lib/" filetype="symlink" linkto="libz.so.1.2.6"/>
+ <QPG:Add file="../libz.so.1.2.6" install="/opt/lib/" component="slib"/>
</QPG:Files>
<QPG:PackageFilter>
@@ -63,7 +63,7 @@
</QPM:ProductDescription>
<QPM:ReleaseDescription>
- <QPM:ReleaseVersion>1.2.5</QPM:ReleaseVersion>
+ <QPM:ReleaseVersion>1.2.6</QPM:ReleaseVersion>
<QPM:ReleaseUrgency>Medium</QPM:ReleaseUrgency>
<QPM:ReleaseStability>Stable</QPM:ReleaseStability>
<QPM:ReleaseNoteMinor></QPM:ReleaseNoteMinor>
diff --git a/example.c b/test/example.c
similarity index 92%
rename from example.c
rename to test/example.c
index 604736f..f515a48 100644
--- a/example.c
+++ b/test/example.c
@@ -1,5 +1,5 @@
/* example.c -- usage example of the zlib compression library
- * Copyright (C) 1995-2006 Jean-loup Gailly.
+ * Copyright (C) 1995-2006, 2011 Jean-loup Gailly.
* For conditions of distribution and use, see copyright notice in zlib.h
*/
@@ -34,10 +34,6 @@
const char dictionary[] = "hello";
uLong dictId; /* Adler32 value of the dictionary */
-void test_compress OF((Byte *compr, uLong comprLen,
- Byte *uncompr, uLong uncomprLen));
-void test_gzio OF((const char *fname,
- Byte *uncompr, uLong uncomprLen));
void test_deflate OF((Byte *compr, uLong comprLen));
void test_inflate OF((Byte *compr, uLong comprLen,
Byte *uncompr, uLong uncomprLen));
@@ -53,6 +49,39 @@
Byte *uncompr, uLong uncomprLen));
int main OF((int argc, char *argv[]));
+
+#ifdef Z_SOLO
+
+void *myalloc OF((void *, unsigned, unsigned));
+void myfree OF((void *, void *));
+
+void *myalloc(q, n, m)
+ void *q;
+ unsigned n, m;
+{
+ q = Z_NULL;
+ return calloc(n, m);
+}
+
+void myfree(void *q, void *p)
+{
+ q = Z_NULL;
+ free(p);
+}
+
+static alloc_func zalloc = myalloc;
+static free_func zfree = myfree;
+
+#else /* !Z_SOLO */
+
+static alloc_func zalloc = (alloc_func)0;
+static free_func zfree = (free_func)0;
+
+void test_compress OF((Byte *compr, uLong comprLen,
+ Byte *uncompr, uLong uncomprLen));
+void test_gzio OF((const char *fname,
+ Byte *uncompr, uLong uncomprLen));
+
/* ===========================================================================
* Test compress() and uncompress()
*/
@@ -163,6 +192,8 @@
#endif
}
+#endif /* Z_SOLO */
+
/* ===========================================================================
* Test deflate() with small buffers
*/
@@ -174,8 +205,8 @@
int err;
uLong len = (uLong)strlen(hello)+1;
- c_stream.zalloc = (alloc_func)0;
- c_stream.zfree = (free_func)0;
+ c_stream.zalloc = zalloc;
+ c_stream.zfree = zfree;
c_stream.opaque = (voidpf)0;
err = deflateInit(&c_stream, Z_DEFAULT_COMPRESSION);
@@ -213,8 +244,8 @@
strcpy((char*)uncompr, "garbage");
- d_stream.zalloc = (alloc_func)0;
- d_stream.zfree = (free_func)0;
+ d_stream.zalloc = zalloc;
+ d_stream.zfree = zfree;
d_stream.opaque = (voidpf)0;
d_stream.next_in = compr;
@@ -252,8 +283,8 @@
z_stream c_stream; /* compression stream */
int err;
- c_stream.zalloc = (alloc_func)0;
- c_stream.zfree = (free_func)0;
+ c_stream.zalloc = zalloc;
+ c_stream.zfree = zfree;
c_stream.opaque = (voidpf)0;
err = deflateInit(&c_stream, Z_BEST_SPEED);
@@ -309,8 +340,8 @@
strcpy((char*)uncompr, "garbage");
- d_stream.zalloc = (alloc_func)0;
- d_stream.zfree = (free_func)0;
+ d_stream.zalloc = zalloc;
+ d_stream.zfree = zfree;
d_stream.opaque = (voidpf)0;
d_stream.next_in = compr;
@@ -349,8 +380,8 @@
int err;
uInt len = (uInt)strlen(hello)+1;
- c_stream.zalloc = (alloc_func)0;
- c_stream.zfree = (free_func)0;
+ c_stream.zalloc = zalloc;
+ c_stream.zfree = zfree;
c_stream.opaque = (voidpf)0;
err = deflateInit(&c_stream, Z_DEFAULT_COMPRESSION);
@@ -388,8 +419,8 @@
strcpy((char*)uncompr, "garbage");
- d_stream.zalloc = (alloc_func)0;
- d_stream.zfree = (free_func)0;
+ d_stream.zalloc = zalloc;
+ d_stream.zfree = zfree;
d_stream.opaque = (voidpf)0;
d_stream.next_in = compr;
@@ -430,15 +461,15 @@
z_stream c_stream; /* compression stream */
int err;
- c_stream.zalloc = (alloc_func)0;
- c_stream.zfree = (free_func)0;
+ c_stream.zalloc = zalloc;
+ c_stream.zfree = zfree;
c_stream.opaque = (voidpf)0;
err = deflateInit(&c_stream, Z_BEST_COMPRESSION);
CHECK_ERR(err, "deflateInit");
err = deflateSetDictionary(&c_stream,
- (const Bytef*)dictionary, sizeof(dictionary));
+ (const Bytef*)dictionary, (int)sizeof(dictionary));
CHECK_ERR(err, "deflateSetDictionary");
dictId = c_stream.adler;
@@ -469,8 +500,8 @@
strcpy((char*)uncompr, "garbage");
- d_stream.zalloc = (alloc_func)0;
- d_stream.zfree = (free_func)0;
+ d_stream.zalloc = zalloc;
+ d_stream.zfree = zfree;
d_stream.opaque = (voidpf)0;
d_stream.next_in = compr;
@@ -491,7 +522,7 @@
exit(1);
}
err = inflateSetDictionary(&d_stream, (const Bytef*)dictionary,
- sizeof(dictionary));
+ (int)sizeof(dictionary));
}
CHECK_ERR(err, "inflate with dict");
}
@@ -540,10 +571,15 @@
printf("out of memory\n");
exit(1);
}
+
+#ifdef Z_SOLO
+ argc = strlen(argv[0]);
+#else
test_compress(compr, comprLen, uncompr, uncomprLen);
test_gzio((argc > 1 ? argv[1] : TESTFILE),
uncompr, uncomprLen);
+#endif
test_deflate(compr, comprLen);
test_inflate(compr, comprLen, uncompr, uncomprLen);
diff --git a/test/infcover.c b/test/infcover.c
new file mode 100644
index 0000000..fe3d920
--- /dev/null
+++ b/test/infcover.c
@@ -0,0 +1,671 @@
+/* infcover.c -- test zlib's inflate routines with full code coverage
+ * Copyright (C) 2011 Mark Adler
+ * For conditions of distribution and use, see copyright notice in zlib.h
+ */
+
+/* to use, do: ./configure --cover && make cover */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <assert.h>
+#include "zlib.h"
+
+/* get definition of internal structure so we can mess with it (see pull()),
+ and so we can call inflate_trees() (see cover5()) */
+#define ZLIB_INTERNAL
+#include "inftrees.h"
+#include "inflate.h"
+
+#define local static
+
+/* -- memory tracking routines -- */
+
+/*
+ These memory tracking routines are provided to zlib and track all of zlib's
+ allocations and deallocations, check for LIFO operations, keep a current
+ and high water mark of total bytes requested, optionally set a limit on the
+ total memory that can be allocated, and when done check for memory leaks.
+
+ They are used as follows:
+
+ z_stream strm;
+ mem_setup(&strm) initializes the memory tracking and sets the
+ zalloc, zfree, and opaque members of strm to use
+ memory tracking for all zlib operations on strm
+ mem_limit(&strm, limit) sets a limit on the total bytes requested -- a
+ request that exceeds this limit will result in an
+ allocation failure (returns NULL) -- setting the
+ limit to zero means no limit, which is the default
+ after mem_setup()
+ mem_used(&strm, "msg") prints to stderr "msg" and the total bytes used
+ mem_high(&strm, "msg") prints to stderr "msg" and the high water mark
+ mem_done(&strm, "msg") ends memory tracking, releases all allocations
+ for the tracking as well as leaked zlib blocks, if
+ any. If there was anything unusual, such as leaked
+ blocks, non-FIFO frees, or frees of addresses not
+ allocated, then "msg" and information about the
+ problem is printed to stderr. If everything is
+ normal, nothing is printed. mem_done resets the
+ strm members to Z_NULL to use the default memory
+ allocation routines on the next zlib initialization
+ using strm.
+ */
+
+/* these items are strung together in a linked list, one for each allocation */
+struct mem_item {
+ void *ptr; /* pointer to allocated memory */
+ size_t size; /* requested size of allocation */
+ struct mem_item *next; /* pointer to next item in list, or NULL */
+};
+
+/* this structure is at the root of the linked list, and tracks statistics */
+struct mem_zone {
+ struct mem_item *first; /* pointer to first item in list, or NULL */
+ size_t total, highwater; /* total allocations, and largest total */
+ size_t limit; /* memory allocation limit, or 0 if no limit */
+ int notlifo, rogue; /* counts of non-LIFO frees and rogue frees */
+};
+
+/* memory allocation routine to pass to zlib */
+local void *mem_alloc(void *mem, unsigned count, unsigned size)
+{
+ void *ptr;
+ struct mem_item *item;
+ struct mem_zone *zone = mem;
+ size_t len = count * (size_t)size;
+
+ /* induced allocation failure */
+ if (zone == NULL || (zone->limit && zone->total + len > zone->limit))
+ return NULL;
+
+ /* perform allocation using the standard library, fill memory with a
+ non-zero value to make sure that the code isn't depending on zeros */
+ ptr = malloc(len);
+ if (ptr == NULL)
+ return NULL;
+ memset(ptr, 0xa5, len);
+
+ /* create a new item for the list */
+ item = malloc(sizeof(struct mem_item));
+ if (item == NULL) {
+ free(ptr);
+ return NULL;
+ }
+ item->ptr = ptr;
+ item->size = len;
+
+ /* insert item at the beginning of the list */
+ item->next = zone->first;
+ zone->first = item;
+
+ /* update the statistics */
+ zone->total += item->size;
+ if (zone->total > zone->highwater)
+ zone->highwater = zone->total;
+
+ /* return the allocated memory */
+ return ptr;
+}
+
+/* memory free routine to pass to zlib */
+local void mem_free(void *mem, void *ptr)
+{
+ struct mem_item *item, *next;
+ struct mem_zone *zone = mem;
+
+ /* if no zone, just do a free */
+ if (zone == NULL) {
+ free(ptr);
+ return;
+ }
+
+ /* point next to the item that matches ptr, or NULL if not found -- remove
+ the item from the linked list if found */
+ next = zone->first;
+ if (next) {
+ if (next->ptr == ptr)
+ zone->first = next->next; /* first one is it, remove from list */
+ else {
+ do { /* search the linked list */
+ item = next;
+ next = item->next;
+ } while (next != NULL && next->ptr != ptr);
+ if (next) { /* if found, remove from linked list */
+ item->next = next->next;
+ zone->notlifo++; /* not a LIFO free */
+ }
+
+ }
+ }
+
+ /* if found, update the statistics and free the item */
+ if (next) {
+ zone->total -= next->size;
+ free(next);
+ }
+
+ /* if not found, update the rogue count */
+ else
+ zone->rogue++;
+
+ /* in any case, do the requested free with the standard library function */
+ free(ptr);
+}
+
+/* set up a controlled memory allocation space for monitoring, set the stream
+ parameters to the controlled routines, with opaque pointing to the space */
+local void mem_setup(z_stream *strm)
+{
+ struct mem_zone *zone;
+
+ zone = malloc(sizeof(struct mem_zone));
+ assert(zone != NULL);
+ zone->first = NULL;
+ zone->total = 0;
+ zone->highwater = 0;
+ zone->limit = 0;
+ zone->notlifo = 0;
+ zone->rogue = 0;
+ strm->opaque = zone;
+ strm->zalloc = mem_alloc;
+ strm->zfree = mem_free;
+}
+
+/* set a limit on the total memory allocation, or 0 to remove the limit */
+local void mem_limit(z_stream *strm, size_t limit)
+{
+ struct mem_zone *zone = strm->opaque;
+
+ zone->limit = limit;
+}
+
+/* show the current total requested allocations in bytes */
+local void mem_used(z_stream *strm, char *prefix)
+{
+ struct mem_zone *zone = strm->opaque;
+
+ fprintf(stderr, "%s: %lu allocated\n", prefix, zone->total);
+}
+
+/* show the high water allocation in bytes */
+local void mem_high(z_stream *strm, char *prefix)
+{
+ struct mem_zone *zone = strm->opaque;
+
+ fprintf(stderr, "%s: %lu high water mark\n", prefix, zone->highwater);
+}
+
+/* release the memory allocation zone -- if there are any surprises, notify */
+local void mem_done(z_stream *strm, char *prefix)
+{
+ int count = 0;
+ struct mem_item *item, *next;
+ struct mem_zone *zone = strm->opaque;
+
+ /* show high water mark */
+ mem_high(strm, prefix);
+
+ /* free leftover allocations and item structures, if any */
+ item = zone->first;
+ while (item != NULL) {
+ free(item->ptr);
+ next = item->next;
+ free(item);
+ item = next;
+ count++;
+ }
+
+ /* issue alerts about anything unexpected */
+ if (count || zone->total)
+ fprintf(stderr, "** %s: %lu bytes in %d blocks not freed\n",
+ prefix, zone->total, count);
+ if (zone->notlifo)
+ fprintf(stderr, "** %s: %d frees not LIFO\n", prefix, zone->notlifo);
+ if (zone->rogue)
+ fprintf(stderr, "** %s: %d frees not recognized\n",
+ prefix, zone->rogue);
+
+ /* free the zone and delete from the stream */
+ free(zone);
+ strm->opaque = Z_NULL;
+ strm->zalloc = Z_NULL;
+ strm->zfree = Z_NULL;
+}
+
+/* -- inflate test routines -- */
+
+/* Decode a hexadecimal string, set *len to length, in[] to the bytes. This
+ decodes liberally, in that hex digits can be adjacent, in which case two in
+ a row writes a byte. Or they can delimited by any non-hex character, where
+ the delimiters are ignored except when a single hex digit is followed by a
+ delimiter in which case that single digit writes a byte. The returned
+ data is allocated and must eventually be freed. NULL is returned if out of
+ memory. If the length is not needed, then len can be NULL. */
+local unsigned char *h2b(const char *hex, unsigned *len)
+{
+ unsigned char *in;
+ unsigned next, val;
+
+ in = malloc((strlen(hex) + 1) >> 1);
+ if (in == NULL)
+ return NULL;
+ next = 0;
+ val = 1;
+ do {
+ if (*hex >= '0' && *hex <= '9')
+ val = (val << 4) + *hex - '0';
+ else if (*hex >= 'A' && *hex <= 'F')
+ val = (val << 4) + *hex - 'A' + 10;
+ else if (*hex >= 'a' && *hex <= 'f')
+ val = (val << 4) + *hex - 'a' + 10;
+ else if (val != 1 && val < 32) /* one digit followed by delimiter */
+ val += 240; /* make it look like two digits */
+ if (val > 255) { /* have two digits */
+ in[next++] = val & 0xff; /* save the decoded byte */
+ val = 1; /* start over */
+ }
+ } while (*hex++); /* go through the loop with the terminating null */
+ if (len != NULL)
+ *len = next;
+ in = reallocf(in, next);
+ return in;
+}
+
+/* generic inflate() run, where hex is the hexadecimal input data, what is the
+ text to include in an error message, step is how much input data to feed
+ inflate() on each call, or zero to feed it all, win is the window bits
+ parameter to inflateInit2(), len is the size of the output buffer, and err
+ is the error code expected from the first inflate() call (the second
+ inflate() call is expected to return Z_STREAM_END). If win is 47, then
+ header information is collected with inflateGetHeader(). If a zlib stream
+ is looking for a dictionary, then an empty dictionary is provided.
+ inflate() is run until all of the input data is consumed. */
+local void inf(char *hex, char *what, unsigned step, int win, unsigned len,
+ int err)
+{
+ int ret;
+ unsigned have;
+ unsigned char *in, *out;
+ z_stream strm, copy;
+ gz_header head;
+
+ mem_setup(&strm);
+ strm.avail_in = 0;
+ strm.next_in = Z_NULL;
+ ret = inflateInit2(&strm, win);
+ if (ret != Z_OK) {
+ mem_done(&strm, what);
+ return;
+ }
+ out = malloc(len); assert(out != NULL);
+ if (win == 47) {
+ head.extra = out;
+ head.extra_max = len;
+ head.name = out;
+ head.name_max = len;
+ head.comment = out;
+ head.comm_max = len;
+ ret = inflateGetHeader(&strm, &head); assert(ret == Z_OK);
+ }
+ in = h2b(hex, &have); assert(in != NULL);
+ if (step == 0 || step > have)
+ step = have;
+ strm.avail_in = step;
+ have -= step;
+ strm.next_in = in;
+ do {
+ strm.avail_out = len;
+ strm.next_out = out;
+ ret = inflate(&strm, Z_NO_FLUSH); assert(err == 9 || ret == err);
+ if (ret != Z_OK && ret != Z_BUF_ERROR && ret != Z_NEED_DICT)
+ break;
+ if (ret == Z_NEED_DICT) {
+ ret = inflateSetDictionary(&strm, in, 1);
+ assert(ret == Z_DATA_ERROR);
+ mem_limit(&strm, 1);
+ ret = inflateSetDictionary(&strm, out, 0);
+ assert(ret == Z_MEM_ERROR);
+ mem_limit(&strm, 0);
+ ((struct inflate_state *)strm.state)->mode = DICT;
+ ret = inflateSetDictionary(&strm, out, 0);
+ assert(ret == Z_OK);
+ ret = inflate(&strm, Z_NO_FLUSH); assert(ret == Z_BUF_ERROR);
+ }
+ ret = inflateCopy(©, &strm); assert(ret == Z_OK);
+ ret = inflateEnd(©); assert(ret == Z_OK);
+ err = 9; /* don't care next time around */
+ have += strm.avail_in;
+ strm.avail_in = step > have ? have : step;
+ have -= strm.avail_in;
+ } while (strm.avail_in);
+ free(in);
+ free(out);
+ ret = inflateReset2(&strm, -8); assert(ret == Z_OK);
+ ret = inflateEnd(&strm); assert(ret == Z_OK);
+ mem_done(&strm, what);
+}
+
+/* cover all of the lines in inflate.c up to inflate() */
+local void cover_support(void)
+{
+ int ret;
+ z_stream strm;
+
+ mem_setup(&strm);
+ strm.avail_in = 0;
+ strm.next_in = Z_NULL;
+ ret = inflateInit(&strm); assert(ret == Z_OK);
+ mem_used(&strm, "inflate init");
+ ret = inflatePrime(&strm, 5, 31); assert(ret == Z_OK);
+ ret = inflatePrime(&strm, -1, 0); assert(ret == Z_OK);
+ ret = inflateSetDictionary(&strm, Z_NULL, 0);
+ assert(ret == Z_STREAM_ERROR);
+ ret = inflateEnd(&strm); assert(ret == Z_OK);
+ mem_done(&strm, "prime");
+
+ inf("63 0", "force window allocation", 0, -15, 1, Z_OK);
+ inf("63 18 5", "force window replacement", 0, -8, 259, Z_OK);
+ inf("63 18 68 30 d0 0 0", "force split window update", 4, -8, 259, Z_OK);
+ inf("3 0", "use fixed blocks", 0, -15, 1, Z_STREAM_END);
+ inf("", "bad window size", 0, 1, 0, Z_STREAM_ERROR);
+
+ mem_setup(&strm);
+ strm.avail_in = 0;
+ strm.next_in = Z_NULL;
+ ret = inflateInit_(&strm, ZLIB_VERSION - 1, (int)sizeof(z_stream));
+ assert(ret == Z_VERSION_ERROR);
+ mem_done(&strm, "wrong version");
+
+ strm.avail_in = 0;
+ strm.next_in = Z_NULL;
+ ret = inflateInit(&strm); assert(ret == Z_OK);
+ ret = inflateEnd(&strm); assert(ret == Z_OK);
+ fputs("inflate built-in memory routines\n", stderr);
+}
+
+/* cover all inflate() header and trailer cases and code after inflate() */
+local void cover_wrap(void)
+{
+ int ret;
+ z_stream strm, copy;
+ unsigned char dict[257];
+
+ ret = inflate(Z_NULL, 0); assert(ret == Z_STREAM_ERROR);
+ ret = inflateEnd(Z_NULL); assert(ret == Z_STREAM_ERROR);
+ ret = inflateCopy(Z_NULL, Z_NULL); assert(ret == Z_STREAM_ERROR);
+ fputs("inflate bad parameters\n", stderr);
+
+ inf("1f 8b 0 0", "bad gzip method", 0, 31, 0, Z_DATA_ERROR);
+ inf("1f 8b 8 80", "bad gzip flags", 0, 31, 0, Z_DATA_ERROR);
+ inf("77 85", "bad zlib method", 0, 15, 0, Z_DATA_ERROR);
+ inf("8 99", "set window size from header", 0, 0, 0, Z_OK);
+ inf("78 9c", "bad zlib window size", 0, 8, 0, Z_DATA_ERROR);
+ inf("78 9c 63 0 0 0 1 0 1", "check adler32", 0, 15, 1, Z_STREAM_END);
+ inf("1f 8b 8 1e 0 0 0 0 0 0 1 0 0 0 0 0 0", "bad header crc", 0, 47, 1,
+ Z_DATA_ERROR);
+ inf("1f 8b 8 2 0 0 0 0 0 0 1d 26 3 0 0 0 0 0 0 0 0 0", "check gzip length",
+ 0, 47, 0, Z_STREAM_END);
+ inf("78 90", "bad zlib header check", 0, 47, 0, Z_DATA_ERROR);
+ inf("8 b8 0 0 0 1", "need dictionary", 0, 8, 0, Z_NEED_DICT);
+ inf("78 9c 63 0", "compute adler32", 0, 15, 1, Z_OK);
+
+ mem_setup(&strm);
+ strm.avail_in = 0;
+ strm.next_in = Z_NULL;
+ ret = inflateInit2(&strm, -8);
+ strm.avail_in = 2;
+ strm.next_in = (void *)"\x63";
+ strm.avail_out = 1;
+ strm.next_out = (void *)&ret;
+ mem_limit(&strm, 1);
+ ret = inflate(&strm, Z_NO_FLUSH); assert(ret == Z_MEM_ERROR);
+ ret = inflate(&strm, Z_NO_FLUSH); assert(ret == Z_MEM_ERROR);
+ mem_limit(&strm, 0);
+ memset(dict, 0, 257);
+ ret = inflateSetDictionary(&strm, dict, 257);
+ assert(ret == Z_OK);
+ mem_limit(&strm, (sizeof(struct inflate_state) << 1) + 256);
+ ret = inflatePrime(&strm, 16, 0); assert(ret == Z_OK);
+ strm.avail_in = 2;
+ strm.next_in = (void *)"\x80";
+ ret = inflateSync(&strm); assert(ret == Z_DATA_ERROR);
+ ret = inflate(&strm, Z_NO_FLUSH); assert(ret == Z_STREAM_ERROR);
+ strm.avail_in = 4;
+ strm.next_in = (void *)"\0\0\xff\xff";
+ ret = inflateSync(&strm); assert(ret == Z_OK);
+ (void)inflateSyncPoint(&strm);
+ ret = inflateCopy(©, &strm); assert(ret == Z_MEM_ERROR);
+ mem_limit(&strm, 0);
+ ret = inflateUndermine(&strm, 1); assert(ret == Z_DATA_ERROR);
+ (void)inflateMark(&strm);
+ ret = inflateEnd(&strm); assert(ret == Z_OK);
+ mem_done(&strm, "miscellaneous, force memory errors");
+}
+
+/* input and output functions for inflateBack() */
+local unsigned pull(void *desc, unsigned char **buf)
+{
+ static unsigned int next = 0;
+ static unsigned char dat[] = {0x63, 0, 2, 0};
+ struct inflate_state *state;
+
+ if (desc == Z_NULL) {
+ next = 0;
+ return 0; /* no input (already provided at next_in) */
+ }
+ state = (void *)((z_stream *)desc)->state;
+ if (state != Z_NULL)
+ state->mode = SYNC; /* force an otherwise impossible situation */
+ return next < sizeof(dat) ? (*buf = dat + next++, 1) : 0;
+}
+
+local int push(void *desc, unsigned char *buf, unsigned len)
+{
+ buf += len;
+ return desc != Z_NULL; /* force error if desc not null */
+}
+
+/* cover inflateBack() up to common deflate data cases and after those */
+local void cover_back(void)
+{
+ int ret;
+ z_stream strm;
+ unsigned char win[32768];
+
+ ret = inflateBackInit_(Z_NULL, 0, win, 0, 0);
+ assert(ret == Z_VERSION_ERROR);
+ ret = inflateBackInit(Z_NULL, 0, win); assert(ret == Z_STREAM_ERROR);
+ ret = inflateBack(Z_NULL, Z_NULL, Z_NULL, Z_NULL, Z_NULL);
+ assert(ret == Z_STREAM_ERROR);
+ ret = inflateBackEnd(Z_NULL); assert(ret == Z_STREAM_ERROR);
+ fputs("inflateBack bad parameters\n", stderr);
+
+ mem_setup(&strm);
+ ret = inflateBackInit(&strm, 15, win); assert(ret == Z_OK);
+ strm.avail_in = 2;
+ strm.next_in = (void *)"\x03";
+ ret = inflateBack(&strm, pull, Z_NULL, push, Z_NULL);
+ assert(ret == Z_STREAM_END);
+ /* force output error */
+ strm.avail_in = 3;
+ strm.next_in = (void *)"\x63\x00";
+ ret = inflateBack(&strm, pull, Z_NULL, push, &strm);
+ assert(ret == Z_BUF_ERROR);
+ /* force mode error by mucking with state */
+ ret = inflateBack(&strm, pull, &strm, push, Z_NULL);
+ assert(ret == Z_STREAM_ERROR);
+ ret = inflateBackEnd(&strm); assert(ret == Z_OK);
+ mem_done(&strm, "inflateBack bad state");
+
+ ret = inflateBackInit(&strm, 15, win); assert(ret == Z_OK);
+ ret = inflateBackEnd(&strm); assert(ret == Z_OK);
+ fputs("inflateBack built-in memory routines\n", stderr);
+}
+
+/* do a raw inflate of data in hexadecimal with both inflate and inflateBack */
+local int try(char *hex, char *id, int err)
+{
+ int ret;
+ unsigned len, size;
+ unsigned char *in, *out, *win;
+ char *prefix;
+ z_stream strm;
+
+ /* convert to hex */
+ in = h2b(hex, &len);
+ assert(in != NULL);
+
+ /* allocate work areas */
+ size = len << 3;
+ out = malloc(size);
+ assert(out != NULL);
+ win = malloc(32768);
+ assert(win != NULL);
+ prefix = malloc(strlen(id) + 6);
+ assert(prefix != NULL);
+
+ /* first with inflate */
+ strcpy(prefix, id);
+ strcat(prefix, "-late");
+ mem_setup(&strm);
+ strm.avail_in = 0;
+ strm.next_in = Z_NULL;
+ ret = inflateInit2(&strm, err < 0 ? 47 : -15);
+ assert(ret == Z_OK);
+ strm.avail_in = len;
+ strm.next_in = in;
+ do {
+ strm.avail_out = size;
+ strm.next_out = out;
+ ret = inflate(&strm, Z_TREES);
+ assert(ret != Z_STREAM_ERROR && ret != Z_MEM_ERROR);
+ if (ret == Z_DATA_ERROR || ret == Z_NEED_DICT)
+ break;
+ } while (strm.avail_in || strm.avail_out == 0);
+ if (err) {
+ assert(ret == Z_DATA_ERROR);
+ assert(strcmp(id, strm.msg) == 0);
+ }
+ inflateEnd(&strm);
+ mem_done(&strm, prefix);
+
+ /* then with inflateBack */
+ if (err >= 0) {
+ strcpy(prefix, id);
+ strcat(prefix, "-back");
+ mem_setup(&strm);
+ ret = inflateBackInit(&strm, 15, win);
+ assert(ret == Z_OK);
+ strm.avail_in = len;
+ strm.next_in = in;
+ ret = inflateBack(&strm, pull, Z_NULL, push, Z_NULL);
+ assert(ret != Z_STREAM_ERROR);
+ if (err) {
+ assert(ret == Z_DATA_ERROR);
+ assert(strcmp(id, strm.msg) == 0);
+ }
+ inflateBackEnd(&strm);
+ mem_done(&strm, prefix);
+ }
+
+ /* clean up */
+ free(prefix);
+ free(win);
+ free(out);
+ free(in);
+ return ret;
+}
+
+/* cover deflate data cases in both inflate() and inflateBack() */
+local void cover_inflate(void)
+{
+ try("0 0 0 0 0", "invalid stored block lengths", 1);
+ try("3 0", "fixed", 0);
+ try("6", "invalid block type", 1);
+ try("1 1 0 fe ff 0", "stored", 0);
+ try("fc 0 0", "too many length or distance symbols", 1);
+ try("4 0 fe ff", "invalid code lengths set", 1);
+ try("4 0 24 49 0", "invalid bit length repeat", 1);
+ try("4 0 24 e9 ff ff", "invalid bit length repeat", 1);
+ try("4 0 24 e9 ff 6d", "invalid code -- missing end-of-block", 1);
+ try("4 80 49 92 24 49 92 24 71 ff ff 93 11 0",
+ "invalid literal/lengths set", 1);
+ try("4 80 49 92 24 49 92 24 f b4 ff ff c3 84", "invalid distances set", 1);
+ try("4 c0 81 8 0 0 0 0 20 7f eb b 0 0", "invalid literal/length code", 1);
+ try("2 7e ff ff", "invalid distance code", 1);
+ try("c c0 81 0 0 0 0 0 90 ff 6b 4 0", "invalid distance too far back", 1);
+
+ /* also trailer mismatch just in inflate() */
+ try("1f 8b 8 0 0 0 0 0 0 0 3 0 0 0 0 1", "incorrect data check", -1);
+ try("1f 8b 8 0 0 0 0 0 0 0 3 0 0 0 0 0 0 0 0 1",
+ "incorrect length check", -1);
+ try("5 c0 21 d 0 0 0 80 b0 fe 6d 2f 91 6c", "pull 17", 0);
+ try("5 e0 81 91 24 cb b2 2c 49 e2 f 2e 8b 9a 47 56 9f fb fe ec d2 ff 1f",
+ "long code", 0);
+ try("ed c0 1 1 0 0 0 40 20 ff 57 1b 42 2c 4f", "length extra", 0);
+ try("ed cf c1 b1 2c 47 10 c4 30 fa 6f 35 1d 1 82 59 3d fb be 2e 2a fc f c",
+ "long distance and extra", 0);
+ try("ed c0 81 0 0 0 0 80 a0 fd a9 17 a9 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 "
+ "0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 6", "window end", 0);
+ inf("2 8 20 80 0 3 0", "inflate_fast TYPE return", 0, -15, 258,
+ Z_STREAM_END);
+ inf("63 18 5 40 c 0", "window wrap", 3, -8, 300, Z_OK);
+}
+
+/* cover remaining lines in inftrees.c */
+local void cover_trees(void)
+{
+ int ret;
+ unsigned bits;
+ unsigned short lens[16], work[16];
+ code *next, table[ENOUGH_DISTS];
+
+ /* we need to call inflate_table() directly in order to manifest not-
+ enough errors, since zlib insures that enough is always enough */
+ for (bits = 0; bits < 15; bits++)
+ lens[bits] = (unsigned short)(bits + 1);
+ lens[15] = 15;
+ next = table;
+ bits = 15;
+ ret = inflate_table(DISTS, lens, 16, &next, &bits, work);
+ assert(ret == 1);
+ next = table;
+ bits = 1;
+ ret = inflate_table(DISTS, lens, 16, &next, &bits, work);
+ assert(ret == 1);
+ fputs("inflate_table not enough errors\n", stderr);
+}
+
+/* cover remaining inffast.c decoding and window copying */
+local void cover_fast(void)
+{
+ inf("e5 e0 81 ad 6d cb b2 2c c9 01 1e 59 63 ae 7d ee fb 4d fd b5 35 41 68"
+ " ff 7f 0f 0 0 0", "fast length extra bits", 0, -8, 258, Z_DATA_ERROR);
+ inf("25 fd 81 b5 6d 59 b6 6a 49 ea af 35 6 34 eb 8c b9 f6 b9 1e ef 67 49"
+ " 50 fe ff ff 3f 0 0", "fast distance extra bits", 0, -8, 258,
+ Z_DATA_ERROR);
+ inf("3 7e 0 0 0 0 0", "fast invalid distance code", 0, -8, 258,
+ Z_DATA_ERROR);
+ inf("1b 7 0 0 0 0 0", "fast invalid literal/length code", 0, -8, 258,
+ Z_DATA_ERROR);
+ inf("d c7 1 ae eb 38 c 4 41 a0 87 72 de df fb 1f b8 36 b1 38 5d ff ff 0",
+ "fast 2nd level codes and too far back", 0, -8, 258, Z_DATA_ERROR);
+ inf("63 18 5 8c 10 8 0 0 0 0", "very common case", 0, -8, 259, Z_OK);
+ inf("63 60 60 18 c9 0 8 18 18 18 26 c0 28 0 29 0 0 0",
+ "contiguous and wrap around window", 6, -8, 259, Z_OK);
+ inf("63 0 3 0 0 0 0 0", "copy direct from output", 0, -8, 259,
+ Z_STREAM_END);
+}
+
+int main(void)
+{
+ fprintf(stderr, "%s\n", zlibVersion());
+ cover_support();
+ cover_wrap();
+ cover_back();
+ cover_inflate();
+ cover_trees();
+ cover_fast();
+ return 0;
+}
diff --git a/minigzip.c b/test/minigzip.c
similarity index 73%
rename from minigzip.c
rename to test/minigzip.c
index 9825ccc..8317344 100644
--- a/minigzip.c
+++ b/test/minigzip.c
@@ -1,5 +1,5 @@
/* minigzip.c -- simulate gzip using the zlib compression library
- * Copyright (C) 1995-2006, 2010 Jean-loup Gailly.
+ * Copyright (C) 1995-2006, 2010, 2011 Jean-loup Gailly.
* For conditions of distribution and use, see copyright notice in zlib.h
*/
@@ -138,6 +138,197 @@
# define local
#endif
+#ifdef Z_SOLO
+/* for Z_SOLO, create simplified gz* functions using deflate and inflate */
+
+#if defined(Z_HAVE_UNISTD_H) || defined(Z_LARGE)
+# include <unistd.h> /* for unlink() */
+#endif
+
+void *myalloc OF((void *, unsigned, unsigned));
+void myfree OF((void *, void *));
+
+void *myalloc(q, n, m)
+ void *q;
+ unsigned n, m;
+{
+ q = Z_NULL;
+ return calloc(n, m);
+}
+
+void myfree(q, p)
+ void *q, *p;
+{
+ q = Z_NULL;
+ free(p);
+}
+
+typedef struct gzFile_s {
+ FILE *file;
+ int write;
+ int err;
+ char *msg;
+ z_stream strm;
+} *gzFile;
+
+gzFile gzopen OF((const char *, const char *));
+gzFile gzdopen OF((int, const char *));
+gzFile gz_open OF((const char *, int, const char *));
+
+gzFile gzopen(path, mode)
+const char *path;
+const char *mode;
+{
+ return gz_open(path, -1, mode);
+}
+
+gzFile gzdopen(fd, mode)
+int fd;
+const char *mode;
+{
+ return gz_open(NULL, fd, mode);
+}
+
+gzFile gz_open(path, fd, mode)
+ const char *path;
+ int fd;
+ const char *mode;
+{
+ gzFile gz;
+ int ret;
+
+ gz = malloc(sizeof(gzFile));
+ if (gz == NULL)
+ return NULL;
+ gz->write = strchr(mode, 'w') != NULL;
+ gz->strm.zalloc = myalloc;
+ gz->strm.zfree = myfree;
+ gz->strm.opaque = Z_NULL;
+ if (gz->write)
+ ret = deflateInit2(&(gz->strm), -1, 8, 15 + 16, 8, 0);
+ else {
+ gz->strm.next_in = 0;
+ gz->strm.avail_in = Z_NULL;
+ ret = inflateInit2(&(gz->strm), 15 + 16);
+ }
+ if (ret != Z_OK) {
+ free(gz);
+ return NULL;
+ }
+ gz->file = path == NULL ? fdopen(fd, gz->write ? "wb" : "rb") :
+ fopen(path, gz->write ? "wb" : "rb");
+ if (gz->file == NULL) {
+ gz->write ? deflateEnd(&(gz->strm)) : inflateEnd(&(gz->strm));
+ free(gz);
+ return NULL;
+ }
+ gz->err = 0;
+ gz->msg = "";
+ return gz;
+}
+
+int gzwrite OF((gzFile, const void *, unsigned));
+
+int gzwrite(gz, buf, len)
+ gzFile gz;
+ const void *buf;
+ unsigned len;
+{
+ z_stream *strm;
+ unsigned char out[BUFLEN];
+
+ if (gz == NULL || !gz->write)
+ return 0;
+ strm = &(gz->strm);
+ strm->next_in = (void *)buf;
+ strm->avail_in = len;
+ do {
+ strm->next_out = out;
+ strm->avail_out = BUFLEN;
+ (void)deflate(strm, Z_NO_FLUSH);
+ fwrite(out, 1, BUFLEN - strm->avail_out, gz->file);
+ } while (strm->avail_out == 0);
+ return len;
+}
+
+int gzread OF((gzFile, void *, unsigned));
+
+int gzread(gz, buf, len)
+ gzFile gz;
+ void *buf;
+ unsigned len;
+{
+ int ret;
+ unsigned got;
+ unsigned char in[1];
+ z_stream *strm;
+
+ if (gz == NULL || gz->write)
+ return 0;
+ if (gz->err)
+ return 0;
+ strm = &(gz->strm);
+ strm->next_out = (void *)buf;
+ strm->avail_out = len;
+ do {
+ got = fread(in, 1, 1, gz->file);
+ if (got == 0)
+ break;
+ strm->next_in = in;
+ strm->avail_in = 1;
+ ret = inflate(strm, Z_NO_FLUSH);
+ if (ret == Z_DATA_ERROR) {
+ gz->err = Z_DATA_ERROR;
+ gz->msg = strm->msg;
+ return 0;
+ }
+ if (ret == Z_STREAM_END)
+ inflateReset(strm);
+ } while (strm->avail_out);
+ return len - strm->avail_out;
+}
+
+int gzclose OF((gzFile));
+
+int gzclose(gz)
+ gzFile gz;
+{
+ z_stream *strm;
+ unsigned char out[BUFLEN];
+
+ if (gz == NULL)
+ return Z_STREAM_ERROR;
+ strm = &(gz->strm);
+ if (gz->write) {
+ strm->next_in = Z_NULL;
+ strm->avail_in = 0;
+ do {
+ strm->next_out = out;
+ strm->avail_out = BUFLEN;
+ (void)deflate(strm, Z_FINISH);
+ fwrite(out, 1, BUFLEN - strm->avail_out, gz->file);
+ } while (strm->avail_out == 0);
+ deflateEnd(strm);
+ }
+ else
+ inflateEnd(strm);
+ fclose(gz->file);
+ free(gz);
+ return Z_OK;
+}
+
+const char *gzerror OF((gzFile, int *));
+
+const char *gzerror(gz, err)
+ gzFile gz;
+ int *err;
+{
+ *err = gz->err;
+ return gz->msg;
+}
+
+#endif
+
char *prog;
void error OF((const char *msg));
diff --git a/treebuild.xml b/treebuild.xml
index 6b8f542..89963a0 100644
--- a/treebuild.xml
+++ b/treebuild.xml
@@ -1,6 +1,6 @@
<?xml version="1.0" ?>
-<package name="zlib" version="1.2.5">
- <library name="zlib" dlversion="1.2.5" dlname="z">
+<package name="zlib" version="1.2.6">
+ <library name="zlib" dlversion="1.2.6" dlname="z">
<property name="description"> zip compression library </property>
<property name="include-target-dir" value="$(@PACKAGE/install-includedir)" />
diff --git a/trees.c b/trees.c
index 56e9bb1..8c32b21 100644
--- a/trees.c
+++ b/trees.c
@@ -1,5 +1,5 @@
/* trees.c -- output deflated data using Huffman coding
- * Copyright (C) 1995-2010 Jean-loup Gailly
+ * Copyright (C) 1995-2012 Jean-loup Gailly
* detect_data_type() function provided freely by Cosmin Truta, 2006
* For conditions of distribution and use, see copyright notice in zlib.h
*/
@@ -74,11 +74,6 @@
* probability, to avoid transmitting the lengths for unused bit length codes.
*/
-#define Buf_size (8 * 2*sizeof(char))
-/* Number of bits used within bi_buf. (bi_buf might be implemented on
- * more than 16 bits on some systems.)
- */
-
/* ===========================================================================
* Local data. These are initialized only once.
*/
@@ -399,7 +394,6 @@
s->bi_buf = 0;
s->bi_valid = 0;
- s->last_eob_len = 8; /* enough lookahead for inflate */
#ifdef DEBUG
s->compressed_len = 0L;
s->bits_sent = 0L;
@@ -883,15 +877,17 @@
}
/* ===========================================================================
+ * Flush the bits in the bit buffer to pending output (leaves at most 7 bits)
+ */
+void ZLIB_INTERNAL _tr_flush_bits(s)
+ deflate_state *s;
+{
+ bi_flush(s);
+}
+
+/* ===========================================================================
* Send one empty static block to give enough lookahead for inflate.
* This takes 10 bits, of which 7 may remain in the bit buffer.
- * The current inflate code requires 9 bits of lookahead. If the
- * last two codes for the previous block (real code plus EOB) were coded
- * on 5 bits or less, inflate may have only 5+3 bits of lookahead to decode
- * the last real code. In this case we send two empty static blocks instead
- * of one. (There are no problems if the previous block is stored or fixed.)
- * To simplify the code, we assume the worst case of last real code encoded
- * on one bit only.
*/
void ZLIB_INTERNAL _tr_align(s)
deflate_state *s;
@@ -902,20 +898,6 @@
s->compressed_len += 10L; /* 3 for block type, 7 for EOB */
#endif
bi_flush(s);
- /* Of the 10 bits for the empty block, we have already sent
- * (10 - bi_valid) bits. The lookahead for the last real code (before
- * the EOB of the previous block) was thus at least one plus the length
- * of the EOB plus what we have just sent of the empty static block.
- */
- if (1 + s->last_eob_len + 10 - s->bi_valid < 9) {
- send_bits(s, STATIC_TREES<<1, 3);
- send_code(s, END_BLOCK, static_ltree);
-#ifdef DEBUG
- s->compressed_len += 10L;
-#endif
- bi_flush(s);
- }
- s->last_eob_len = 7;
}
/* ===========================================================================
@@ -1118,7 +1100,6 @@
} while (lx < s->last_lit);
send_code(s, END_BLOCK, ltree);
- s->last_eob_len = ltree[END_BLOCK].Len;
}
/* ===========================================================================
@@ -1226,7 +1207,6 @@
int header; /* true if block header must be written */
{
bi_windup(s); /* align on byte boundary */
- s->last_eob_len = 8; /* enough lookahead for inflate */
if (header) {
put_short(s, (ush)len);
diff --git a/win32/Makefile.bor b/win32/Makefile.bor
index 3981d42..d152bbb 100644
--- a/win32/Makefile.bor
+++ b/win32/Makefile.bor
@@ -74,9 +74,9 @@
zutil.obj: zutil.c zutil.h zlib.h zconf.h
-example.obj: example.c zlib.h zconf.h
+example.obj: test/example.c zlib.h zconf.h
-minigzip.obj: minigzip.c zlib.h zconf.h
+minigzip.obj: test/minigzip.c zlib.h zconf.h
# For the sake of the old Borland make,
diff --git a/win32/Makefile.gcc b/win32/Makefile.gcc
index 0a33bf6..c4a6589 100644
--- a/win32/Makefile.gcc
+++ b/win32/Makefile.gcc
@@ -25,7 +25,7 @@
STATICLIB = libz.a
SHAREDLIB = zlib1.dll
-IMPLIB = libzdll.a
+IMPLIB = libz.dll.a
#
# Set to 1 if shared object needs to be installed
@@ -59,7 +59,7 @@
INSTALL = $(CP)
RM = rm -f
-prefix = /usr/local
+prefix ?= /usr/local
exec_prefix = $(prefix)
OBJS = adler32.o compress.o crc32.o deflate.o gzclose.o gzlib.o gzread.o \
@@ -108,6 +108,12 @@
$(LD) $(LDFLAGS) -o $@ minigzip.o $(IMPLIB)
$(STRIP) $@
+example.o: test/example.c zlib.h zconf.h
+ $(CC) $(CFLAGS) $(EXTRA_CFLAGS) -I. -c -o $@ test/example.c
+
+minigzip.o: test/minigzip.c zlib.h zconf.h
+ $(CC) $(CFLAGS) $(EXTRA_CFLAGS) -I. -c -o $@ test/minigzip.c
+
zlibrc.o: win32/zlib1.rc
$(RC) $(RCFLAGS) -o $@ win32/zlib1.rc
@@ -117,8 +123,12 @@
.PHONY: install uninstall clean
install: zlib.h zconf.h $(STATICLIB) $(IMPLIB)
+ @if test -z "$(INCLUDE_PATH)" -o -z "$(LIBRARY_PATH)" -o -z "$(BINARY_PATH)"; then \
+ echo INCLUDE_PATH, LIBRARY_PATH, and BINARY_PATH must be specified; \
+ exit 1; \
+ fi
-@mkdir -p $(INCLUDE_PATH)
- -@mkdir -p $(LIBRARY_PATH)
+ -@mkdir -p $(LIBRARY_PATH) $(LIBRARY_PATH)/pkgconfig
-if [ "$(SHARED_MODE)" = "1" ]; then \
mkdir -p $(BINARY_PATH); \
$(INSTALL) $(SHAREDLIB) $(BINARY_PATH); \
@@ -127,6 +137,14 @@
-$(INSTALL) zlib.h $(INCLUDE_PATH)
-$(INSTALL) zconf.h $(INCLUDE_PATH)
-$(INSTALL) $(STATICLIB) $(LIBRARY_PATH)
+ sed \
+ -e 's|@prefix@|${prefix}|g' \
+ -e 's|@exec_prefix@|${exec_prefix}|g' \
+ -e 's|@libdir@|$(LIBRARY_PATH)|g' \
+ -e 's|@sharedlibdir@|$(LIBRARY_PATH)|g' \
+ -e 's|@includedir@|$(INCLUDE_PATH)|g' \
+ -e 's|@VERSION@|'`sed -n -e '/VERSION "/s/.*"\(.*\)".*/\1/p' zlib.h`'|g' \
+ zlib.pc.in > $(LIBRARY_PATH)/pkgconfig/zlib.pc
uninstall:
-if [ "$(SHARED_MODE)" = "1" ]; then \
@@ -149,7 +167,6 @@
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
gzclose.o: zlib.h zconf.h gzguts.h
gzlib.o: zlib.h zconf.h gzguts.h
gzread.o: zlib.h zconf.h gzguts.h
@@ -158,7 +175,6 @@
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
diff --git a/win32/Makefile.msc b/win32/Makefile.msc
index fa10a1a..59bb0da 100644
--- a/win32/Makefile.msc
+++ b/win32/Makefile.msc
@@ -6,8 +6,8 @@
# nmake -f win32/Makefile.msc LOC=-DFOO (nonstandard build)
# nmake -f win32/Makefile.msc LOC="-DASMV -DASMINF" \
# OBJA="inffas32.obj match686.obj" (use ASM code, x86)
-# nmake -f win32/Makefile.msc AS=ml64 LOC="-DASMV -DASMINF" \
-# OBJA="inffasx64.obj gvmat64.obj inffas8664.c" (use ASM code, x64)
+# nmake -f win32/Makefile.msc AS=ml64 LOC="-DASMV -DASMINF -I." \
+# OBJA="inffasx64.obj gvmat64.obj inffas8664.obj" (use ASM code, x64)
# optional build flags
LOC =
@@ -30,7 +30,7 @@
RCFLAGS = /dWIN32 /r
OBJS = adler32.obj compress.obj crc32.obj deflate.obj gzclose.obj gzlib.obj gzread.obj \
- gzwrite.obj infback.obj inflate.obj inftrees.obj trees.obj uncompr.obj zutil.obj
+ gzwrite.obj infback.obj inflate.obj inftrees.obj inffast.obj trees.obj uncompr.obj zutil.obj
OBJA =
@@ -72,6 +72,9 @@
.c.obj:
$(CC) -c $(WFLAGS) $(CFLAGS) $<
+{test}.c.obj:
+ $(CC) -c -I. $(WFLAGS) $(CFLAGS) $<
+
{contrib/masmx64}.c.obj:
$(CC) -c $(WFLAGS) $(CFLAGS) $<
@@ -125,9 +128,9 @@
match686.obj: contrib\masmx86\match686.asm
-example.obj: example.c zlib.h zconf.h
+example.obj: test/example.c zlib.h zconf.h
-minigzip.obj: minigzip.c zlib.h zconf.h
+minigzip.obj: test/minigzip.c zlib.h zconf.h
zlib1.res: win32/zlib1.rc
$(RC) $(RCFLAGS) /fo$@ win32/zlib1.rc
diff --git a/win32/zlib.def b/win32/zlib.def
index 03df8bf..d96c18a 100644
--- a/win32/zlib.def
+++ b/win32/zlib.def
@@ -1,6 +1,4 @@
-LIBRARY
; zlib data compression library
-
EXPORTS
; basic functions
zlibVersion
@@ -15,6 +13,7 @@
deflateParams
deflateTune
deflateBound
+ deflatePending
deflatePrime
deflateSetHeader
inflateSetDictionary
@@ -57,6 +56,13 @@
gzclose_w
gzerror
gzclearerr
+; large file functions
+ gzopen64
+ gzseek64
+ gztell64
+ gzoffset64
+ adler32_combine64
+ crc32_combine64
; checksum functions
adler32
crc32
@@ -72,3 +78,7 @@
inflateSyncPoint
get_crc_table
inflateUndermine
+ inflateResetKeep
+ deflateResetKeep
+ gzgetc_
+ gzflags
diff --git a/zconf.h b/zconf.h
index 89c892d..cf8b992 100644
--- a/zconf.h
+++ b/zconf.h
@@ -1,5 +1,5 @@
/* zconf.h -- configuration of the zlib compression library
- * Copyright (C) 1995-2010 Jean-loup Gailly.
+ * Copyright (C) 1995-2011 Jean-loup Gailly.
* For conditions of distribution and use, see copyright notice in zlib.h
*/
@@ -15,6 +15,7 @@
* this permanently in zconf.h using "./configure --zprefix".
*/
#ifdef Z_PREFIX /* may be set to #if 1 by ./configure */
+# define Z_PREFIX_SET
/* all linked symbols */
# define _dist_code z__dist_code
@@ -27,9 +28,11 @@
# define adler32 z_adler32
# define adler32_combine z_adler32_combine
# define adler32_combine64 z_adler32_combine64
-# define compress z_compress
-# define compress2 z_compress2
-# define compressBound z_compressBound
+# ifndef Z_SOLO
+# define compress z_compress
+# define compress2 z_compress2
+# define compressBound z_compressBound
+# endif
# define crc32 z_crc32
# define crc32_combine z_crc32_combine
# define crc32_combine64 z_crc32_combine64
@@ -40,44 +43,50 @@
# define deflateInit2_ z_deflateInit2_
# define deflateInit_ z_deflateInit_
# define deflateParams z_deflateParams
+# define deflatePending z_deflatePending
# define deflatePrime z_deflatePrime
# define deflateReset z_deflateReset
+# define deflateResetKeep z_deflateResetKeep
# define deflateSetDictionary z_deflateSetDictionary
# define deflateSetHeader z_deflateSetHeader
# define deflateTune z_deflateTune
# define deflate_copyright z_deflate_copyright
# define get_crc_table z_get_crc_table
-# define gz_error z_gz_error
-# define gz_intmax z_gz_intmax
-# define gz_strwinerror z_gz_strwinerror
-# define gzbuffer z_gzbuffer
-# define gzclearerr z_gzclearerr
-# define gzclose z_gzclose
-# define gzclose_r z_gzclose_r
-# define gzclose_w z_gzclose_w
-# define gzdirect z_gzdirect
-# define gzdopen z_gzdopen
-# define gzeof z_gzeof
-# define gzerror z_gzerror
-# define gzflush z_gzflush
-# define gzgetc z_gzgetc
-# define gzgets z_gzgets
-# define gzoffset z_gzoffset
-# define gzoffset64 z_gzoffset64
-# define gzopen z_gzopen
-# define gzopen64 z_gzopen64
-# define gzprintf z_gzprintf
-# define gzputc z_gzputc
-# define gzputs z_gzputs
-# define gzread z_gzread
-# define gzrewind z_gzrewind
-# define gzseek z_gzseek
-# define gzseek64 z_gzseek64
-# define gzsetparams z_gzsetparams
-# define gztell z_gztell
-# define gztell64 z_gztell64
-# define gzungetc z_gzungetc
-# define gzwrite z_gzwrite
+# ifndef Z_SOLO
+# define gz_error z_gz_error
+# define gz_intmax z_gz_intmax
+# define gz_strwinerror z_gz_strwinerror
+# define gzbuffer z_gzbuffer
+# define gzclearerr z_gzclearerr
+# define gzclose z_gzclose
+# define gzclose_r z_gzclose_r
+# define gzclose_w z_gzclose_w
+# define gzdirect z_gzdirect
+# define gzdopen z_gzdopen
+# define gzeof z_gzeof
+# define gzerror z_gzerror
+# define gzflags z_gzflags
+# define gzflush z_gzflush
+# define gzgetc z_gzgetc
+# define gzgetc_ z_gzgetc_
+# define gzgets z_gzgets
+# define gzoffset z_gzoffset
+# define gzoffset64 z_gzoffset64
+# define gzopen z_gzopen
+# define gzopen64 z_gzopen64
+# define gzprintf z_gzprintf
+# define gzputc z_gzputc
+# define gzputs z_gzputs
+# define gzread z_gzread
+# define gzrewind z_gzrewind
+# define gzseek z_gzseek
+# define gzseek64 z_gzseek64
+# define gzsetparams z_gzsetparams
+# define gztell z_gztell
+# define gztell64 z_gztell64
+# define gzungetc z_gzungetc
+# define gzwrite z_gzwrite
+# endif
# define inflate z_inflate
# define inflateBack z_inflateBack
# define inflateBackEnd z_inflateBackEnd
@@ -95,13 +104,18 @@
# define inflateSync z_inflateSync
# define inflateSyncPoint z_inflateSyncPoint
# define inflateUndermine z_inflateUndermine
+# define inflateResetKeep z_inflateResetKeep
# define inflate_copyright z_inflate_copyright
# define inflate_fast z_inflate_fast
# define inflate_table z_inflate_table
-# define uncompress z_uncompress
+# ifndef Z_SOLO
+# define uncompress z_uncompress
+# endif
# define zError z_zError
-# define zcalloc z_zcalloc
-# define zcfree z_zcfree
+# ifndef Z_SOLO
+# define zcalloc z_zcalloc
+# define zcfree z_zcfree
+# endif
# define zlibCompileFlags z_zlibCompileFlags
# define zlibVersion z_zlibVersion
@@ -111,9 +125,11 @@
# define alloc_func z_alloc_func
# define charf z_charf
# define free_func z_free_func
-# define gzFile z_gzFile
-# define gz_header z_gz_header
-# define gz_headerp z_gz_headerp
+# ifndef Z_SOLO
+# define gzFile z_gzFile
+# define gz_header z_gz_header
+# define gz_headerp z_gz_headerp
+# endif
# define in_func z_in_func
# define intf z_intf
# define out_func z_out_func
@@ -126,7 +142,9 @@
# define voidpf z_voidpf
/* all zlib structs in zlib.h and zconf.h */
-# define gz_header_s z_gz_header_s
+# ifndef Z_SOLO
+# define gz_header_s z_gz_header_s
+# endif
# define internal_state z_internal_state
#endif
@@ -197,6 +215,12 @@
# endif
#endif
+#if defined(ZLIB_CONST) && !defined(z_const)
+# define z_const const
+#else
+# define z_const
+#endif
+
/* Some Mac compilers merge all .h files incorrectly: */
#if defined(__MWERKS__)||defined(applec)||defined(THINK_C)||defined(__SC__)
# define NO_DUMMY_DECL
@@ -243,6 +267,14 @@
# endif
#endif
+#ifndef Z_ARG /* function prototypes for stdarg */
+# if defined(STDC) || defined(Z_HAVE_STDARG_H)
+# define Z_ARG(args) args
+# else
+# define Z_ARG(args) ()
+# endif
+#endif
+
/* The following definitions for FAR are needed only for MSDOS mixed
* model programming (small or medium model with some far allocations).
* This was tested only with MSC; for other MSDOS compilers you may have
@@ -356,13 +388,18 @@
typedef Byte *voidp;
#endif
-#define HAVE_UNISTD_H // android-added
-#ifdef HAVE_UNISTD_H /* may be set to #if 1 by ./configure */
+#if 1 /* was set to #if 1 by ./configure */
# define Z_HAVE_UNISTD_H
#endif
+#if 1 /* was set to #if 1 by ./configure */
+# define Z_HAVE_STDARG_H
+#endif
+
#ifdef STDC
-# include <sys/types.h> /* for off_t */
+# ifndef Z_SOLO
+# include <sys/types.h> /* for off_t */
+# endif
#endif
/* a little trick to accommodate both "#define _LARGEFILE64_SOURCE" and
@@ -375,7 +412,11 @@
# undef _LARGEFILE64_SOURCE
#endif
-#if defined(Z_HAVE_UNISTD_H) || defined(_LARGEFILE64_SOURCE)
+#if defined(_LARGEFILE64_SOURCE) && _LFS64_LARGEFILE-0
+# define Z_LARGE
+#endif
+
+#if (defined(Z_HAVE_UNISTD_H) || defined(Z_LARGE)) && !defined(Z_SOLO)
# include <unistd.h> /* for SEEK_* and off_t */
# ifdef VMS
# include <unixio.h> /* for off_t */
@@ -385,7 +426,7 @@
# endif
#endif
-#ifndef SEEK_SET
+#if !defined(SEEK_SET) && !defined(Z_SOLO)
# define SEEK_SET 0 /* Seek from beginning of file. */
# define SEEK_CUR 1 /* Seek from current position. */
# define SEEK_END 2 /* Set file pointer to EOF plus "offset" */
@@ -395,18 +436,14 @@
# define z_off_t long
#endif
-#if defined(_LARGEFILE64_SOURCE) && _LFS64_LARGEFILE-0
+#if !defined(_WIN32) && (defined(_LARGEFILE64_SOURCE) && _LFS64_LARGEFILE-0)
# define z_off64_t off64_t
#else
+# if defined(_WIN32)
+# define z_off64_t __int64
+# else
# define z_off64_t z_off_t
#endif
-
-#if defined(__OS400__)
-# define NO_vsnprintf
-#endif
-
-#if defined(__MVS__)
-# define NO_vsnprintf
#endif
/* MVS linker does not support external names larger than 8 bytes */
diff --git a/zconf.h.cmakein b/zconf.h.cmakein
index a2f71b1..3ea5531 100644
--- a/zconf.h.cmakein
+++ b/zconf.h.cmakein
@@ -1,5 +1,5 @@
/* zconf.h -- configuration of the zlib compression library
- * Copyright (C) 1995-2010 Jean-loup Gailly.
+ * Copyright (C) 1995-2011 Jean-loup Gailly.
* For conditions of distribution and use, see copyright notice in zlib.h
*/
@@ -17,6 +17,7 @@
* this permanently in zconf.h using "./configure --zprefix".
*/
#ifdef Z_PREFIX /* may be set to #if 1 by ./configure */
+# define Z_PREFIX_SET
/* all linked symbols */
# define _dist_code z__dist_code
@@ -29,9 +30,11 @@
# define adler32 z_adler32
# define adler32_combine z_adler32_combine
# define adler32_combine64 z_adler32_combine64
-# define compress z_compress
-# define compress2 z_compress2
-# define compressBound z_compressBound
+# ifndef Z_SOLO
+# define compress z_compress
+# define compress2 z_compress2
+# define compressBound z_compressBound
+# endif
# define crc32 z_crc32
# define crc32_combine z_crc32_combine
# define crc32_combine64 z_crc32_combine64
@@ -42,44 +45,50 @@
# define deflateInit2_ z_deflateInit2_
# define deflateInit_ z_deflateInit_
# define deflateParams z_deflateParams
+# define deflatePending z_deflatePending
# define deflatePrime z_deflatePrime
# define deflateReset z_deflateReset
+# define deflateResetKeep z_deflateResetKeep
# define deflateSetDictionary z_deflateSetDictionary
# define deflateSetHeader z_deflateSetHeader
# define deflateTune z_deflateTune
# define deflate_copyright z_deflate_copyright
# define get_crc_table z_get_crc_table
-# define gz_error z_gz_error
-# define gz_intmax z_gz_intmax
-# define gz_strwinerror z_gz_strwinerror
-# define gzbuffer z_gzbuffer
-# define gzclearerr z_gzclearerr
-# define gzclose z_gzclose
-# define gzclose_r z_gzclose_r
-# define gzclose_w z_gzclose_w
-# define gzdirect z_gzdirect
-# define gzdopen z_gzdopen
-# define gzeof z_gzeof
-# define gzerror z_gzerror
-# define gzflush z_gzflush
-# define gzgetc z_gzgetc
-# define gzgets z_gzgets
-# define gzoffset z_gzoffset
-# define gzoffset64 z_gzoffset64
-# define gzopen z_gzopen
-# define gzopen64 z_gzopen64
-# define gzprintf z_gzprintf
-# define gzputc z_gzputc
-# define gzputs z_gzputs
-# define gzread z_gzread
-# define gzrewind z_gzrewind
-# define gzseek z_gzseek
-# define gzseek64 z_gzseek64
-# define gzsetparams z_gzsetparams
-# define gztell z_gztell
-# define gztell64 z_gztell64
-# define gzungetc z_gzungetc
-# define gzwrite z_gzwrite
+# ifndef Z_SOLO
+# define gz_error z_gz_error
+# define gz_intmax z_gz_intmax
+# define gz_strwinerror z_gz_strwinerror
+# define gzbuffer z_gzbuffer
+# define gzclearerr z_gzclearerr
+# define gzclose z_gzclose
+# define gzclose_r z_gzclose_r
+# define gzclose_w z_gzclose_w
+# define gzdirect z_gzdirect
+# define gzdopen z_gzdopen
+# define gzeof z_gzeof
+# define gzerror z_gzerror
+# define gzflags z_gzflags
+# define gzflush z_gzflush
+# define gzgetc z_gzgetc
+# define gzgetc_ z_gzgetc_
+# define gzgets z_gzgets
+# define gzoffset z_gzoffset
+# define gzoffset64 z_gzoffset64
+# define gzopen z_gzopen
+# define gzopen64 z_gzopen64
+# define gzprintf z_gzprintf
+# define gzputc z_gzputc
+# define gzputs z_gzputs
+# define gzread z_gzread
+# define gzrewind z_gzrewind
+# define gzseek z_gzseek
+# define gzseek64 z_gzseek64
+# define gzsetparams z_gzsetparams
+# define gztell z_gztell
+# define gztell64 z_gztell64
+# define gzungetc z_gzungetc
+# define gzwrite z_gzwrite
+# endif
# define inflate z_inflate
# define inflateBack z_inflateBack
# define inflateBackEnd z_inflateBackEnd
@@ -97,13 +106,18 @@
# define inflateSync z_inflateSync
# define inflateSyncPoint z_inflateSyncPoint
# define inflateUndermine z_inflateUndermine
+# define inflateResetKeep z_inflateResetKeep
# define inflate_copyright z_inflate_copyright
# define inflate_fast z_inflate_fast
# define inflate_table z_inflate_table
-# define uncompress z_uncompress
+# ifndef Z_SOLO
+# define uncompress z_uncompress
+# endif
# define zError z_zError
-# define zcalloc z_zcalloc
-# define zcfree z_zcfree
+# ifndef Z_SOLO
+# define zcalloc z_zcalloc
+# define zcfree z_zcfree
+# endif
# define zlibCompileFlags z_zlibCompileFlags
# define zlibVersion z_zlibVersion
@@ -113,9 +127,11 @@
# define alloc_func z_alloc_func
# define charf z_charf
# define free_func z_free_func
-# define gzFile z_gzFile
-# define gz_header z_gz_header
-# define gz_headerp z_gz_headerp
+# ifndef Z_SOLO
+# define gzFile z_gzFile
+# define gz_header z_gz_header
+# define gz_headerp z_gz_headerp
+# endif
# define in_func z_in_func
# define intf z_intf
# define out_func z_out_func
@@ -128,7 +144,9 @@
# define voidpf z_voidpf
/* all zlib structs in zlib.h and zconf.h */
-# define gz_header_s z_gz_header_s
+# ifndef Z_SOLO
+# define gz_header_s z_gz_header_s
+# endif
# define internal_state z_internal_state
#endif
@@ -199,6 +217,12 @@
# endif
#endif
+#if defined(ZLIB_CONST) && !defined(z_const)
+# define z_const const
+#else
+# define z_const
+#endif
+
/* Some Mac compilers merge all .h files incorrectly: */
#if defined(__MWERKS__)||defined(applec)||defined(THINK_C)||defined(__SC__)
# define NO_DUMMY_DECL
@@ -245,6 +269,14 @@
# endif
#endif
+#ifndef Z_ARG /* function prototypes for stdarg */
+# if defined(STDC) || defined(Z_HAVE_STDARG_H)
+# define Z_ARG(args) args
+# else
+# define Z_ARG(args) ()
+# endif
+#endif
+
/* The following definitions for FAR are needed only for MSDOS mixed
* model programming (small or medium model with some far allocations).
* This was tested only with MSC; for other MSDOS compilers you may have
@@ -362,8 +394,14 @@
# define Z_HAVE_UNISTD_H
#endif
+#ifdef HAVE_STDARG_H /* may be set to #if 1 by ./configure */
+# define Z_HAVE_STDARG_H
+#endif
+
#ifdef STDC
-# include <sys/types.h> /* for off_t */
+# ifndef Z_SOLO
+# include <sys/types.h> /* for off_t */
+# endif
#endif
/* a little trick to accommodate both "#define _LARGEFILE64_SOURCE" and
@@ -376,7 +414,11 @@
# undef _LARGEFILE64_SOURCE
#endif
-#if defined(Z_HAVE_UNISTD_H) || defined(_LARGEFILE64_SOURCE)
+#if defined(_LARGEFILE64_SOURCE) && _LFS64_LARGEFILE-0
+# define Z_LARGE
+#endif
+
+#if (defined(Z_HAVE_UNISTD_H) || defined(Z_LARGE)) && !defined(Z_SOLO)
# include <unistd.h> /* for SEEK_* and off_t */
# ifdef VMS
# include <unixio.h> /* for off_t */
@@ -386,7 +428,7 @@
# endif
#endif
-#ifndef SEEK_SET
+#if !defined(SEEK_SET) && !defined(Z_SOLO)
# define SEEK_SET 0 /* Seek from beginning of file. */
# define SEEK_CUR 1 /* Seek from current position. */
# define SEEK_END 2 /* Set file pointer to EOF plus "offset" */
@@ -396,18 +438,14 @@
# define z_off_t long
#endif
-#if defined(_LARGEFILE64_SOURCE) && _LFS64_LARGEFILE-0
+#if !defined(_WIN32) && (defined(_LARGEFILE64_SOURCE) && _LFS64_LARGEFILE-0)
# define z_off64_t off64_t
#else
+# if defined(_WIN32)
+# define z_off64_t __int64
+# else
# define z_off64_t z_off_t
#endif
-
-#if defined(__OS400__)
-# define NO_vsnprintf
-#endif
-
-#if defined(__MVS__)
-# define NO_vsnprintf
#endif
/* MVS linker does not support external names larger than 8 bytes */
diff --git a/zconf.h.in b/zconf.h.in
index 02ce56c..51c80ac 100644
--- a/zconf.h.in
+++ b/zconf.h.in
@@ -1,5 +1,5 @@
/* zconf.h -- configuration of the zlib compression library
- * Copyright (C) 1995-2010 Jean-loup Gailly.
+ * Copyright (C) 1995-2011 Jean-loup Gailly.
* For conditions of distribution and use, see copyright notice in zlib.h
*/
@@ -15,6 +15,7 @@
* this permanently in zconf.h using "./configure --zprefix".
*/
#ifdef Z_PREFIX /* may be set to #if 1 by ./configure */
+# define Z_PREFIX_SET
/* all linked symbols */
# define _dist_code z__dist_code
@@ -27,9 +28,11 @@
# define adler32 z_adler32
# define adler32_combine z_adler32_combine
# define adler32_combine64 z_adler32_combine64
-# define compress z_compress
-# define compress2 z_compress2
-# define compressBound z_compressBound
+# ifndef Z_SOLO
+# define compress z_compress
+# define compress2 z_compress2
+# define compressBound z_compressBound
+# endif
# define crc32 z_crc32
# define crc32_combine z_crc32_combine
# define crc32_combine64 z_crc32_combine64
@@ -40,44 +43,50 @@
# define deflateInit2_ z_deflateInit2_
# define deflateInit_ z_deflateInit_
# define deflateParams z_deflateParams
+# define deflatePending z_deflatePending
# define deflatePrime z_deflatePrime
# define deflateReset z_deflateReset
+# define deflateResetKeep z_deflateResetKeep
# define deflateSetDictionary z_deflateSetDictionary
# define deflateSetHeader z_deflateSetHeader
# define deflateTune z_deflateTune
# define deflate_copyright z_deflate_copyright
# define get_crc_table z_get_crc_table
-# define gz_error z_gz_error
-# define gz_intmax z_gz_intmax
-# define gz_strwinerror z_gz_strwinerror
-# define gzbuffer z_gzbuffer
-# define gzclearerr z_gzclearerr
-# define gzclose z_gzclose
-# define gzclose_r z_gzclose_r
-# define gzclose_w z_gzclose_w
-# define gzdirect z_gzdirect
-# define gzdopen z_gzdopen
-# define gzeof z_gzeof
-# define gzerror z_gzerror
-# define gzflush z_gzflush
-# define gzgetc z_gzgetc
-# define gzgets z_gzgets
-# define gzoffset z_gzoffset
-# define gzoffset64 z_gzoffset64
-# define gzopen z_gzopen
-# define gzopen64 z_gzopen64
-# define gzprintf z_gzprintf
-# define gzputc z_gzputc
-# define gzputs z_gzputs
-# define gzread z_gzread
-# define gzrewind z_gzrewind
-# define gzseek z_gzseek
-# define gzseek64 z_gzseek64
-# define gzsetparams z_gzsetparams
-# define gztell z_gztell
-# define gztell64 z_gztell64
-# define gzungetc z_gzungetc
-# define gzwrite z_gzwrite
+# ifndef Z_SOLO
+# define gz_error z_gz_error
+# define gz_intmax z_gz_intmax
+# define gz_strwinerror z_gz_strwinerror
+# define gzbuffer z_gzbuffer
+# define gzclearerr z_gzclearerr
+# define gzclose z_gzclose
+# define gzclose_r z_gzclose_r
+# define gzclose_w z_gzclose_w
+# define gzdirect z_gzdirect
+# define gzdopen z_gzdopen
+# define gzeof z_gzeof
+# define gzerror z_gzerror
+# define gzflags z_gzflags
+# define gzflush z_gzflush
+# define gzgetc z_gzgetc
+# define gzgetc_ z_gzgetc_
+# define gzgets z_gzgets
+# define gzoffset z_gzoffset
+# define gzoffset64 z_gzoffset64
+# define gzopen z_gzopen
+# define gzopen64 z_gzopen64
+# define gzprintf z_gzprintf
+# define gzputc z_gzputc
+# define gzputs z_gzputs
+# define gzread z_gzread
+# define gzrewind z_gzrewind
+# define gzseek z_gzseek
+# define gzseek64 z_gzseek64
+# define gzsetparams z_gzsetparams
+# define gztell z_gztell
+# define gztell64 z_gztell64
+# define gzungetc z_gzungetc
+# define gzwrite z_gzwrite
+# endif
# define inflate z_inflate
# define inflateBack z_inflateBack
# define inflateBackEnd z_inflateBackEnd
@@ -95,13 +104,18 @@
# define inflateSync z_inflateSync
# define inflateSyncPoint z_inflateSyncPoint
# define inflateUndermine z_inflateUndermine
+# define inflateResetKeep z_inflateResetKeep
# define inflate_copyright z_inflate_copyright
# define inflate_fast z_inflate_fast
# define inflate_table z_inflate_table
-# define uncompress z_uncompress
+# ifndef Z_SOLO
+# define uncompress z_uncompress
+# endif
# define zError z_zError
-# define zcalloc z_zcalloc
-# define zcfree z_zcfree
+# ifndef Z_SOLO
+# define zcalloc z_zcalloc
+# define zcfree z_zcfree
+# endif
# define zlibCompileFlags z_zlibCompileFlags
# define zlibVersion z_zlibVersion
@@ -111,9 +125,11 @@
# define alloc_func z_alloc_func
# define charf z_charf
# define free_func z_free_func
-# define gzFile z_gzFile
-# define gz_header z_gz_header
-# define gz_headerp z_gz_headerp
+# ifndef Z_SOLO
+# define gzFile z_gzFile
+# define gz_header z_gz_header
+# define gz_headerp z_gz_headerp
+# endif
# define in_func z_in_func
# define intf z_intf
# define out_func z_out_func
@@ -126,7 +142,9 @@
# define voidpf z_voidpf
/* all zlib structs in zlib.h and zconf.h */
-# define gz_header_s z_gz_header_s
+# ifndef Z_SOLO
+# define gz_header_s z_gz_header_s
+# endif
# define internal_state z_internal_state
#endif
@@ -197,6 +215,12 @@
# endif
#endif
+#if defined(ZLIB_CONST) && !defined(z_const)
+# define z_const const
+#else
+# define z_const
+#endif
+
/* Some Mac compilers merge all .h files incorrectly: */
#if defined(__MWERKS__)||defined(applec)||defined(THINK_C)||defined(__SC__)
# define NO_DUMMY_DECL
@@ -243,6 +267,14 @@
# endif
#endif
+#ifndef Z_ARG /* function prototypes for stdarg */
+# if defined(STDC) || defined(Z_HAVE_STDARG_H)
+# define Z_ARG(args) args
+# else
+# define Z_ARG(args) ()
+# endif
+#endif
+
/* The following definitions for FAR are needed only for MSDOS mixed
* model programming (small or medium model with some far allocations).
* This was tested only with MSC; for other MSDOS compilers you may have
@@ -360,8 +392,14 @@
# define Z_HAVE_UNISTD_H
#endif
+#ifdef HAVE_STDARG_H /* may be set to #if 1 by ./configure */
+# define Z_HAVE_STDARG_H
+#endif
+
#ifdef STDC
-# include <sys/types.h> /* for off_t */
+# ifndef Z_SOLO
+# include <sys/types.h> /* for off_t */
+# endif
#endif
/* a little trick to accommodate both "#define _LARGEFILE64_SOURCE" and
@@ -374,7 +412,11 @@
# undef _LARGEFILE64_SOURCE
#endif
-#if defined(Z_HAVE_UNISTD_H) || defined(_LARGEFILE64_SOURCE)
+#if defined(_LARGEFILE64_SOURCE) && _LFS64_LARGEFILE-0
+# define Z_LARGE
+#endif
+
+#if (defined(Z_HAVE_UNISTD_H) || defined(Z_LARGE)) && !defined(Z_SOLO)
# include <unistd.h> /* for SEEK_* and off_t */
# ifdef VMS
# include <unixio.h> /* for off_t */
@@ -384,7 +426,7 @@
# endif
#endif
-#ifndef SEEK_SET
+#if !defined(SEEK_SET) && !defined(Z_SOLO)
# define SEEK_SET 0 /* Seek from beginning of file. */
# define SEEK_CUR 1 /* Seek from current position. */
# define SEEK_END 2 /* Set file pointer to EOF plus "offset" */
@@ -394,18 +436,14 @@
# define z_off_t long
#endif
-#if defined(_LARGEFILE64_SOURCE) && _LFS64_LARGEFILE-0
+#if !defined(_WIN32) && (defined(_LARGEFILE64_SOURCE) && _LFS64_LARGEFILE-0)
# define z_off64_t off64_t
#else
+# if defined(_WIN32)
+# define z_off64_t __int64
+# else
# define z_off64_t z_off_t
#endif
-
-#if defined(__OS400__)
-# define NO_vsnprintf
-#endif
-
-#if defined(__MVS__)
-# define NO_vsnprintf
#endif
/* MVS linker does not support external names larger than 8 bytes */
diff --git a/zlib.3 b/zlib.3
index 27adc4c..d051c79 100644
--- a/zlib.3
+++ b/zlib.3
@@ -1,4 +1,4 @@
-.TH ZLIB 3 "19 Apr 2010"
+.TH ZLIB 3 "29 Jan 2012"
.SH NAME
zlib \- compression/decompression library
.SH SYNOPSIS
@@ -36,9 +36,9 @@
.IR zlib.h .
The distribution source includes examples of use of the library
in the files
-.I example.c
+.I test/example.c
and
-.IR minigzip.c,
+.IR test/minigzip.c,
as well as other examples in the
.IR examples/
directory.
@@ -65,7 +65,7 @@
written by A.M. Kuchling (amk@magnet.com),
is available in Python 1.5 and later versions:
.IP
-http://www.python.org/doc/lib/module-zlib.html
+http://docs.python.org/library/zlib.html
.LP
.I zlib
is built into
@@ -95,11 +95,11 @@
The data format used by the zlib library is described by RFC
(Request for Comments) 1950 to 1952 in the files:
.IP
-http://www.ietf.org/rfc/rfc1950.txt (for the zlib header and trailer format)
+http://tools.ietf.org/html/rfc1950 (for the zlib header and trailer format)
.br
-http://www.ietf.org/rfc/rfc1951.txt (for the deflate compressed data format)
+http://tools.ietf.org/html/rfc1951 (for the deflate compressed data format)
.br
-http://www.ietf.org/rfc/rfc1952.txt (for the gzip header and trailer format)
+http://tools.ietf.org/html/rfc1952 (for the gzip header and trailer format)
.LP
Mark Nelson wrote an article about
.I zlib
@@ -125,8 +125,8 @@
Send questions and/or comments to zlib@gzip.org,
or (for the Windows DLL version) to Gilles Vollant (info@winimage.com).
.SH AUTHORS
-Version 1.2.5
-Copyright (C) 1995-2010 Jean-loup Gailly (jloup@gzip.org)
+Version 1.2.6
+Copyright (C) 1995-2012 Jean-loup Gailly (jloup@gzip.org)
and Mark Adler (madler@alumni.caltech.edu).
.LP
This software is provided "as-is,"
diff --git a/zlib.3.pdf b/zlib.3.pdf
index 9f8a2c3..ffa2a78 100644
--- a/zlib.3.pdf
+++ b/zlib.3.pdf
Binary files differ
diff --git a/zlib.h b/zlib.h
index bfbba83..79142d1 100644
--- a/zlib.h
+++ b/zlib.h
@@ -1,7 +1,7 @@
/* zlib.h -- interface of the 'zlib' general purpose compression library
- version 1.2.5, April 19th, 2010
+ version 1.2.6, January 29th, 2012
- Copyright (C) 1995-2010 Jean-loup Gailly and Mark Adler
+ Copyright (C) 1995-2012 Jean-loup Gailly and Mark Adler
This software is provided 'as-is', without any express or implied
warranty. In no event will the authors be held liable for any damages
@@ -24,8 +24,8 @@
The data format used by the zlib library is described by RFCs (Request for
- Comments) 1950 to 1952 in the files http://www.ietf.org/rfc/rfc1950.txt
- (zlib format), rfc1951.txt (deflate format) and rfc1952.txt (gzip format).
+ Comments) 1950 to 1952 in the files http://tools.ietf.org/html/rfc1950
+ (zlib format), rfc1951 (deflate format) and rfc1952 (gzip format).
*/
#ifndef ZLIB_H
@@ -37,11 +37,11 @@
extern "C" {
#endif
-#define ZLIB_VERSION "1.2.5"
-#define ZLIB_VERNUM 0x1250
+#define ZLIB_VERSION "1.2.6"
+#define ZLIB_VERNUM 0x1260
#define ZLIB_VER_MAJOR 1
#define ZLIB_VER_MINOR 2
-#define ZLIB_VER_REVISION 5
+#define ZLIB_VER_REVISION 6
#define ZLIB_VER_SUBREVISION 0
/*
@@ -83,15 +83,15 @@
struct internal_state;
typedef struct z_stream_s {
- Bytef *next_in; /* next input byte */
+ z_const Bytef *next_in; /* next input byte */
uInt avail_in; /* number of bytes available at next_in */
- uLong total_in; /* total nb of input bytes read so far */
+ uLong total_in; /* total number of input bytes read so far */
Bytef *next_out; /* next output byte should be put there */
uInt avail_out; /* remaining free space at next_out */
- uLong total_out; /* total nb of bytes output so far */
+ uLong total_out; /* total number of bytes output so far */
- char *msg; /* last error message, NULL if no error */
+ z_const char *msg; /* last error message, NULL if no error */
struct internal_state FAR *state; /* not visible by applications */
alloc_func zalloc; /* used to allocate the internal state */
@@ -327,8 +327,9 @@
Z_FINISH can be used immediately after deflateInit if all the compression
is to be done in a single step. In this case, avail_out must be at least the
- value returned by deflateBound (see below). If deflate does not return
- Z_STREAM_END, then it must be called again as described above.
+ value returned by deflateBound (see below). Then deflate is guaranteed to
+ return Z_STREAM_END. If not enough output space is provided, deflate will
+ not return Z_STREAM_END, and it must be called again as described above.
deflate() sets strm->adler to the adler32 checksum of all input read
so far (that is, total_in bytes).
@@ -454,20 +455,23 @@
avail_out must be large enough to hold all the uncompressed data. (The size
of the uncompressed data may have been saved by the compressor for this
purpose.) The next operation on this stream must be inflateEnd to deallocate
- the decompression state. The use of Z_FINISH is never required, but can be
- used to inform inflate that a faster approach may be used for the single
- inflate() call.
+ the decompression state. The use of Z_FINISH is not required to perform an
+ inflation in one step. However it may be used to inform inflate that a
+ faster approach can be used for the single inflate() call. Z_FINISH also
+ informs inflate to not maintain a sliding window if the stream completes,
+ which reduces inflate's memory footprint.
In this implementation, inflate() always flushes as much output as
possible to the output buffer, and always uses the faster approach on the
- first call. So the only effect of the flush parameter in this implementation
- is on the return value of inflate(), as noted below, or when it returns early
- because Z_BLOCK or Z_TREES is used.
+ first call. So the effects of the flush parameter in this implementation are
+ on the return value of inflate() as noted below, when inflate() returns early
+ when Z_BLOCK or Z_TREES is used, and when inflate() avoids the allocation of
+ memory for a sliding window when Z_FINISH is used.
If a preset dictionary is needed after this call (see inflateSetDictionary
- below), inflate sets strm->adler to the adler32 checksum of the dictionary
+ below), inflate sets strm->adler to the Adler-32 checksum of the dictionary
chosen by the compressor and returns Z_NEED_DICT; otherwise it sets
- strm->adler to the adler32 checksum of all output produced so far (that is,
+ strm->adler to the Adler-32 checksum of all output produced so far (that is,
total_out bytes) and returns Z_OK, Z_STREAM_END or an error code as described
below. At the end of the stream, inflate() checks that its computed adler32
checksum is equal to that saved by the compressor and returns Z_STREAM_END
@@ -478,7 +482,9 @@
initializing with inflateInit2(). Any information contained in the gzip
header is not retained, so applications that need that information should
instead use raw inflate, see inflateInit2() below, or inflateBack() and
- perform their own processing of the gzip header and trailer.
+ perform their own processing of the gzip header and trailer. When processing
+ gzip-wrapped deflate data, strm->adler32 is set to the CRC-32 of the output
+ producted so far. The CRC-32 is checked against the gzip trailer.
inflate() returns Z_OK if some progress has been made (more input processed
or more output produced), Z_STREAM_END if the end of the compressed data has
@@ -580,10 +586,15 @@
uInt dictLength));
/*
Initializes the compression dictionary from the given byte sequence
- without producing any compressed output. This function must be called
- immediately after deflateInit, deflateInit2 or deflateReset, before any call
- of deflate. The compressor and decompressor must use exactly the same
- dictionary (see inflateSetDictionary).
+ without producing any compressed output. When using the zlib format, this
+ function must be called immediately after deflateInit, deflateInit2 or
+ deflateReset, and before any call of deflate. When doing raw deflate, this
+ function must be called either before any call of deflate, or immediately
+ after the completion of a deflate block, i.e. after all input has been
+ consumed and all output has been delivered when using any of the flush
+ options Z_BLOCK, Z_PARTIAL_FLUSH, Z_SYNC_FLUSH, or Z_FULL_FLUSH. The
+ compressor and decompressor must use exactly the same dictionary (see
+ inflateSetDictionary).
The dictionary should consist of strings (byte sequences) that are likely
to be encountered later in the data to be compressed, with the most commonly
@@ -610,8 +621,8 @@
deflateSetDictionary returns Z_OK if success, or Z_STREAM_ERROR if a
parameter is invalid (e.g. dictionary being Z_NULL) or the stream state is
inconsistent (for example if deflate has already been called for this stream
- or if the compression method is bsort). deflateSetDictionary does not
- perform any compression: this will be done by deflate().
+ or if not at a block boundary for raw deflate). deflateSetDictionary does
+ not perform any compression: this will be done by deflate().
*/
ZEXTERN int ZEXPORT deflateCopy OF((z_streamp dest,
@@ -688,9 +699,29 @@
deflation of sourceLen bytes. It must be called after deflateInit() or
deflateInit2(), and after deflateSetHeader(), if used. This would be used
to allocate an output buffer for deflation in a single pass, and so would be
- called before deflate().
+ called before deflate(). If that first deflate() call is provided the
+ sourceLen input bytes, an output buffer allocated to the size returned by
+ deflateBound(), and the flush value Z_FINISH, then deflate() is guaranteed
+ to return Z_STREAM_END. Note that it is possible for the compressed size to
+ be larger than the value returned by deflateBound() if flush options other
+ than Z_FINISH or Z_NO_FLUSH are used.
*/
+ZEXTERN int ZEXPORT deflatePending OF((z_streamp strm,
+ unsigned *pending,
+ int *bits));
+/*
+ deflatePending() returns the number of bytes and bits of output that have
+ been generated, but not yet provided in the available output. The bytes not
+ provided would be due to the available output space having being consumed.
+ The number of bits of output not provided are between 0 and 7, where they
+ await more bits to join them in order to fill out a full byte. If pending
+ or bits are Z_NULL, then those values are not set.
+
+ deflatePending returns Z_OK if success, or Z_STREAM_ERROR if the source
+ stream state was inconsistent.
+ */
+
ZEXTERN int ZEXPORT deflatePrime OF((z_streamp strm,
int bits,
int value));
@@ -703,8 +734,9 @@
than or equal to 16, and that many of the least significant bits of value
will be inserted in the output.
- deflatePrime returns Z_OK if success, or Z_STREAM_ERROR if the source
- stream state was inconsistent.
+ deflatePrime returns Z_OK if success, Z_BUF_ERROR if there was not enough
+ room in the internal buffer to insert the bits, or Z_STREAM_ERROR if the
+ source stream state was inconsistent.
*/
ZEXTERN int ZEXPORT deflateSetHeader OF((z_streamp strm,
@@ -790,10 +822,11 @@
if that call returned Z_NEED_DICT. The dictionary chosen by the compressor
can be determined from the adler32 value returned by that call of inflate.
The compressor and decompressor must use exactly the same dictionary (see
- deflateSetDictionary). For raw inflate, this function can be called
- immediately after inflateInit2() or inflateReset() and before any call of
- inflate() to set the dictionary. The application must insure that the
- dictionary that was used for compression is provided.
+ deflateSetDictionary). For raw inflate, this function can be called at any
+ time to set the dictionary. If the provided dictionary is smaller than the
+ window and there is already data in the window, then the provided dictionary
+ will amend what's there. The application must insure that the dictionary
+ that was used for compression is provided.
inflateSetDictionary returns Z_OK if success, Z_STREAM_ERROR if a
parameter is invalid (e.g. dictionary being Z_NULL) or the stream state is
@@ -805,17 +838,21 @@
ZEXTERN int ZEXPORT inflateSync OF((z_streamp strm));
/*
- Skips invalid compressed data until a full flush point (see above the
- description of deflate with Z_FULL_FLUSH) can be found, or until all
+ Skips invalid compressed data until a possible full flush point (see above
+ for the description of deflate with Z_FULL_FLUSH) can be found, or until all
available input is skipped. No output is provided.
- inflateSync returns Z_OK if a full flush point has been found, Z_BUF_ERROR
- if no more input was provided, Z_DATA_ERROR if no flush point has been
- found, or Z_STREAM_ERROR if the stream structure was inconsistent. In the
- success case, the application may save the current current value of total_in
- which indicates where valid compressed data was found. In the error case,
- the application may repeatedly call inflateSync, providing more input each
- time, until success or end of the input data.
+ inflateSync searches for a 00 00 FF FF pattern in the compressed data.
+ All full flush points have this pattern, but not all occurences of this
+ pattern are full flush points.
+
+ inflateSync returns Z_OK if a possible full flush point has been found,
+ Z_BUF_ERROR if no more input was provided, Z_DATA_ERROR if no flush point
+ has been found, or Z_STREAM_ERROR if the stream structure was inconsistent.
+ In the success case, the application may save the current current value of
+ total_in which indicates where valid compressed data was found. In the
+ error case, the application may repeatedly call inflateSync, providing more
+ input each time, until success or end of the input data.
*/
ZEXTERN int ZEXPORT inflateCopy OF((z_streamp dest,
@@ -962,7 +999,7 @@
See inflateBack() for the usage of these routines.
inflateBackInit will return Z_OK on success, Z_STREAM_ERROR if any of
- the paramaters are invalid, Z_MEM_ERROR if the internal state could not be
+ the parameters are invalid, Z_MEM_ERROR if the internal state could not be
allocated, or Z_VERSION_ERROR if the version of the library does not match
the version of the header file.
*/
@@ -1088,6 +1125,7 @@
27-31: 0 (reserved)
*/
+#ifndef Z_SOLO
/* utility functions */
@@ -1149,10 +1187,11 @@
uncompress returns Z_OK if success, Z_MEM_ERROR if there was not
enough memory, Z_BUF_ERROR if there was not enough room in the output
- buffer, or Z_DATA_ERROR if the input data was corrupted or incomplete.
+ buffer, or Z_DATA_ERROR if the input data was corrupted or incomplete. In
+ the case where there is not enough room, uncompress() will fill the output
+ buffer with the uncompressed data up to that point.
*/
-
/* gzip file access functions */
/*
@@ -1162,7 +1201,7 @@
wrapper, documented in RFC 1952, wrapped around a deflate stream.
*/
-typedef voidp gzFile; /* opaque gzip file descriptor */
+typedef struct gzFile_s *gzFile; /* semi-opaque gzip file descriptor */
/*
ZEXTERN gzFile ZEXPORT gzopen OF((const char *path, const char *mode));
@@ -1172,13 +1211,25 @@
a strategy: 'f' for filtered data as in "wb6f", 'h' for Huffman-only
compression as in "wb1h", 'R' for run-length encoding as in "wb1R", or 'F'
for fixed code compression as in "wb9F". (See the description of
- deflateInit2 for more information about the strategy parameter.) Also "a"
- can be used instead of "w" to request that the gzip stream that will be
- written be appended to the file. "+" will result in an error, since reading
- and writing to the same gzip file is not supported.
+ deflateInit2 for more information about the strategy parameter.) 'T' will
+ request transparent writing or appending with no compression and not using
+ the gzip format.
+
+ "a" can be used instead of "w" to request that the gzip stream that will
+ be written be appended to the file. "+" will result in an error, since
+ reading and writing to the same gzip file is not supported.
+
+ These functions, as well as gzip, will read and decode a sequence of gzip
+ streams in a file. The append function of gzopen() can be used to create
+ such a file. (Also see gzflush() for another way to do this.) When
+ appending, gzopen does not test whether the file begins with a gzip stream,
+ nor does it look for the end of the gzip streams to begin appending. gzopen
+ will simply append a gzip stream to the existing file.
gzopen can be used to read a file which is not in gzip format; in this
- case gzread will directly read from the file without decompression.
+ case gzread will directly read from the file without decompression. When
+ reading, this will be detected automatically by looking for the magic two-
+ byte gzip header.
gzopen returns NULL if the file could not be opened, if there was
insufficient memory to allocate the gzFile state, or if an invalid mode was
@@ -1197,7 +1248,11 @@
descriptor fd, just like fclose(fdopen(fd, mode)) closes the file descriptor
fd. If you want to keep fd open, use fd = dup(fd_keep); gz = gzdopen(fd,
mode);. The duplicated descriptor should be saved to avoid a leak, since
- gzdopen does not close fd if it fails.
+ gzdopen does not close fd if it fails. If you are using fileno() to get the
+ file descriptor from a FILE *, then you will have to use dup() to avoid
+ double-close()ing the file descriptor. Both gzclose() and fclose() will
+ close the associated file descriptor, so they need to have different file
+ descriptors.
gzdopen returns NULL if there was insufficient memory to allocate the
gzFile state, if an invalid mode was specified (an 'r', 'w', or 'a' was not
@@ -1235,14 +1290,26 @@
ZEXTERN int ZEXPORT gzread OF((gzFile file, voidp buf, unsigned len));
/*
Reads the given number of uncompressed bytes from the compressed file. If
- the input file was not in gzip format, gzread copies the given number of
- bytes into the buffer.
+ the input file is not in gzip format, gzread copies the given number of
+ bytes into the buffer directly from the file.
After reaching the end of a gzip stream in the input, gzread will continue
- to read, looking for another gzip stream, or failing that, reading the rest
- of the input file directly without decompression. The entire input file
- will be read if gzread is called until it returns less than the requested
- len.
+ to read, looking for another gzip stream. Any number of gzip streams may be
+ concatenated in the input file, and will all be decompressed by gzread().
+ If something other than a gzip stream is encountered after a gzip stream,
+ that remaining trailing garbage is ignored (and no error is returned).
+
+ gzread can be used to read a gzip file that is being concurrently written.
+ Upon reaching the end of the input, gzread will return with the available
+ data. If the error code returned by gzerror is Z_OK or Z_BUF_ERROR, then
+ gzclearerr can be used to clear the end of file indicator in order to permit
+ gzread to be tried again. Z_OK indicates that a gzip stream was completed
+ on the last gzread. Z_BUF_ERROR indicates that the input file ended in the
+ middle of a gzip stream. Note that gzread does not return -1 in the event
+ of an incomplete gzip stream. This error is deferred until gzclose(), which
+ will return Z_BUF_ERROR if the last gzread ended in the middle of a gzip
+ stream. Alternatively, gzerror can be used before gzclose to detect this
+ case.
gzread returns the number of uncompressed bytes actually read, less than
len for end of file, or -1 for error.
@@ -1256,7 +1323,7 @@
error.
*/
-ZEXTERN int ZEXPORTVA gzprintf OF((gzFile file, const char *format, ...));
+ZEXTERN int ZEXPORTVA gzprintf Z_ARG((gzFile file, const char *format, ...));
/*
Converts, formats, and writes the arguments to the compressed file under
control of the format string, as in fprintf. gzprintf returns the number of
@@ -1301,7 +1368,10 @@
ZEXTERN int ZEXPORT gzgetc OF((gzFile file));
/*
Reads one byte from the compressed file. gzgetc returns this byte or -1
- in case of end of file or error.
+ in case of end of file or error. This is implemented as a macro for speed.
+ As such, it does not do all of the checking the other functions do. I.e.
+ it does not check to see if file is NULL, nor whether the structure file
+ points to has been clobbered or not.
*/
ZEXTERN int ZEXPORT gzungetc OF((int c, gzFile file));
@@ -1397,9 +1467,7 @@
ZEXTERN int ZEXPORT gzdirect OF((gzFile file));
/*
Returns true (1) if file is being copied directly while reading, or false
- (0) if file is a gzip stream being decompressed. This state can change from
- false to true while reading the input file if the end of a gzip stream is
- reached, but is followed by data that is not another gzip stream.
+ (0) if file is a gzip stream being decompressed.
If the input file is empty, gzdirect() will return true, since the input
does not contain a gzip stream.
@@ -1408,6 +1476,13 @@
cause buffers to be allocated to allow reading the file to determine if it
is a gzip file. Therefore if gzbuffer() is used, it should be called before
gzdirect().
+
+ When writing, gzdirect() returns true (1) if transparent writing was
+ requested ("wT" for the gzopen() mode), or false (0) otherwise. (Note:
+ gzdirect() is not needed when writing. Transparent writing must be
+ explicitly requested, so the application already knows the answer. When
+ linking statically, using gzdirect() will include all of the zlib code for
+ gzip file reading and decompression, which may not be desired.)
*/
ZEXTERN int ZEXPORT gzclose OF((gzFile file));
@@ -1419,7 +1494,8 @@
must not be called more than once on the same allocation.
gzclose will return Z_STREAM_ERROR if file is not valid, Z_ERRNO on a
- file operation error, or Z_OK on success.
+ file operation error, Z_MEM_ERROR if out of memory, Z_BUF_ERROR if the
+ last read ended in the middle of a gzip stream, or Z_OK on success.
*/
ZEXTERN int ZEXPORT gzclose_r OF((gzFile file));
@@ -1457,6 +1533,7 @@
file that is being written concurrently.
*/
+#endif /* !Z_SOLO */
/* checksum functions */
@@ -1492,7 +1569,9 @@
Combine two Adler-32 checksums into one. For two sequences of bytes, seq1
and seq2 with lengths len1 and len2, Adler-32 checksums were calculated for
each, adler1 and adler2. adler32_combine() returns the Adler-32 checksum of
- seq1 and seq2 concatenated, requiring only adler1, adler2, and len2.
+ seq1 and seq2 concatenated, requiring only adler1, adler2, and len2. Note
+ that the z_off_t type (like off_t) is a signed integer. If len2 is
+ negative, the result has no meaning or utility.
*/
ZEXTERN uLong ZEXPORT crc32 OF((uLong crc, const Bytef *buf, uInt len));
@@ -1544,17 +1623,36 @@
const char *version,
int stream_size));
#define deflateInit(strm, level) \
- deflateInit_((strm), (level), ZLIB_VERSION, sizeof(z_stream))
+ deflateInit_((strm), (level), ZLIB_VERSION, (int)sizeof(z_stream))
#define inflateInit(strm) \
- inflateInit_((strm), ZLIB_VERSION, sizeof(z_stream))
+ inflateInit_((strm), ZLIB_VERSION, (int)sizeof(z_stream))
#define deflateInit2(strm, level, method, windowBits, memLevel, strategy) \
deflateInit2_((strm),(level),(method),(windowBits),(memLevel),\
- (strategy), ZLIB_VERSION, sizeof(z_stream))
+ (strategy), ZLIB_VERSION, (int)sizeof(z_stream))
#define inflateInit2(strm, windowBits) \
- inflateInit2_((strm), (windowBits), ZLIB_VERSION, sizeof(z_stream))
+ inflateInit2_((strm), (windowBits), ZLIB_VERSION, \
+ (int)sizeof(z_stream))
#define inflateBackInit(strm, windowBits, window) \
inflateBackInit_((strm), (windowBits), (window), \
- ZLIB_VERSION, sizeof(z_stream))
+ ZLIB_VERSION, (int)sizeof(z_stream))
+
+#ifndef Z_SOLO
+
+/* gzgetc() macro and its supporting function and exposed data structure. Note
+ * that the real internal state is much larger than the exposed structure.
+ * This abbreviated structure exposes just enough for the gzgetc() macro. The
+ * user should not mess with these exposed elements, since their names or
+ * behavior could change in the future, perhaps even capriciously. They can
+ * only be used by the gzgetc() macro. You have been warned.
+ */
+struct gzFile_s {
+ unsigned have;
+ unsigned char *next;
+ z_off64_t pos;
+};
+ZEXTERN int ZEXPORT gzgetc_ OF((gzFile file));
+#define gzgetc(g) \
+ ((g)->have ? ((g)->have--, (g)->pos++, *((g)->next)++) : gzgetc_(g))
/* provide 64-bit offset functions if _LARGEFILE64_SOURCE defined, and/or
* change the regular functions to 64 bits if _FILE_OFFSET_BITS is 64 (if
@@ -1572,13 +1670,22 @@
#endif
#if !defined(ZLIB_INTERNAL) && _FILE_OFFSET_BITS-0 == 64 && _LFS64_LARGEFILE-0
-# define gzopen gzopen64
-# define gzseek gzseek64
-# define gztell gztell64
-# define gzoffset gzoffset64
-# define adler32_combine adler32_combine64
-# define crc32_combine crc32_combine64
-# ifdef _LARGEFILE64_SOURCE
+# ifdef Z_PREFIX_SET
+# define z_gzopen z_gzopen64
+# define z_gzseek z_gzseek64
+# define z_gztell z_gztell64
+# define z_gzoffset z_gzoffset64
+# define z_adler32_combine z_adler32_combine64
+# define z_crc32_combine z_crc32_combine64
+# else
+# define gzopen gzopen64
+# define gzseek gzseek64
+# define gztell gztell64
+# define gzoffset gzoffset64
+# define adler32_combine adler32_combine64
+# define crc32_combine crc32_combine64
+# endif
+# ifndef _LARGEFILE64_SOURCE
ZEXTERN gzFile ZEXPORT gzopen64 OF((const char *, const char *));
ZEXTERN z_off_t ZEXPORT gzseek64 OF((gzFile, z_off_t, int));
ZEXTERN z_off_t ZEXPORT gztell64 OF((gzFile));
@@ -1595,6 +1702,13 @@
ZEXTERN uLong ZEXPORT crc32_combine OF((uLong, uLong, z_off_t));
#endif
+#else /* Z_SOLO */
+
+ ZEXTERN uLong ZEXPORT adler32_combine OF((uLong, uLong, z_off_t));
+ ZEXTERN uLong ZEXPORT crc32_combine OF((uLong, uLong, z_off_t));
+
+#endif /* !Z_SOLO */
+
/* hack for buggy compilers */
#if !defined(ZUTIL_H) && !defined(NO_DUMMY_DECL)
struct internal_state {int dummy;};
@@ -1605,6 +1719,11 @@
ZEXTERN int ZEXPORT inflateSyncPoint OF((z_streamp));
ZEXTERN const uLongf * ZEXPORT get_crc_table OF((void));
ZEXTERN int ZEXPORT inflateUndermine OF((z_streamp, int));
+ZEXTERN int ZEXPORT inflateResetKeep OF((z_streamp));
+ZEXTERN int ZEXPORT deflateResetKeep OF((z_streamp));
+#ifndef Z_SOLO
+ ZEXTERN unsigned long ZEXPORT gzflags OF((void));
+#endif
#ifdef __cplusplus
}
diff --git a/zlib.map b/zlib.map
index f282d36..54fa553 100644
--- a/zlib.map
+++ b/zlib.map
@@ -66,3 +66,14 @@
gzclose_r;
gzclose_w;
} ZLIB_1.2.3.4;
+
+ZLIB_1.2.5.1 {
+ deflatePending;
+} ZLIB_1.2.3.5;
+
+ZLIB_1.2.5.2 {
+ deflateResetKeep;
+ gzflags;
+ gzgetc_;
+ inflateResetKeep;
+} ZLIB_1.2.5.1;
diff --git a/zlib.pc b/zlib.pc
new file mode 100644
index 0000000..601404f
--- /dev/null
+++ b/zlib.pc
@@ -0,0 +1,13 @@
+prefix=/usr/local
+exec_prefix=${prefix}
+libdir=${exec_prefix}/lib
+sharedlibdir=${libdir}
+includedir=${prefix}/include
+
+Name: zlib
+Description: zlib compression library
+Version: 1.2.6
+
+Requires:
+Libs: -L${libdir} -L${sharedlibdir} -lz
+Cflags: -I${includedir}
diff --git a/zutil.c b/zutil.c
index 898ed34..8a1d242 100644
--- a/zutil.c
+++ b/zutil.c
@@ -1,5 +1,5 @@
/* zutil.c -- target dependent utility functions for the compression library
- * Copyright (C) 1995-2005, 2010 Jean-loup Gailly.
+ * Copyright (C) 1995-2005, 2010, 2011 Jean-loup Gailly.
* For conditions of distribution and use, see copyright notice in zlib.h
*/
@@ -85,31 +85,11 @@
#ifdef FASTEST
flags += 1L << 21;
#endif
-#ifdef STDC
-# ifdef NO_vsnprintf
- flags += 1L << 25;
-# ifdef HAS_vsprintf_void
- flags += 1L << 26;
-# endif
-# else
-# ifdef HAS_vsnprintf_void
- flags += 1L << 26;
-# endif
-# endif
-#else
- flags += 1L << 24;
-# ifdef NO_snprintf
- flags += 1L << 25;
-# ifdef HAS_sprintf_void
- flags += 1L << 26;
-# endif
-# else
-# ifdef HAS_snprintf_void
- flags += 1L << 26;
-# endif
-# endif
-#endif
+#ifdef Z_SOLO
return flags;
+#else
+ return flags + gzflags();
+#endif
}
#ifdef DEBUG
@@ -181,6 +161,7 @@
}
#endif
+#ifndef Z_SOLO
#ifdef SYS16BIT
@@ -316,3 +297,5 @@
}
#endif /* MY_ZCALLOC */
+
+#endif /* !Z_SOLO */
diff --git a/zutil.h b/zutil.h
index 258fa88..dff1112 100644
--- a/zutil.h
+++ b/zutil.h
@@ -1,5 +1,5 @@
/* zutil.h -- internal interface and configuration of the compression library
- * Copyright (C) 1995-2010 Jean-loup Gailly.
+ * Copyright (C) 1995-2011 Jean-loup Gailly.
* For conditions of distribution and use, see copyright notice in zlib.h
*/
@@ -21,7 +21,7 @@
#include "zlib.h"
-#ifdef STDC
+#if defined(STDC) && !defined(Z_SOLO)
# if !(defined(_WIN32_WCE) && defined(_MSC_VER))
# include <stddef.h>
# endif
@@ -29,6 +29,10 @@
# include <stdlib.h>
#endif
+#ifdef Z_SOLO
+ typedef long ptrdiff_t; /* guess -- will be caught if guess is wrong */
+#endif
+
#ifndef local
# define local static
#endif
@@ -78,16 +82,18 @@
#if defined(MSDOS) || (defined(WINDOWS) && !defined(WIN32))
# define OS_CODE 0x00
-# if defined(__TURBOC__) || defined(__BORLANDC__)
-# if (__STDC__ == 1) && (defined(__LARGE__) || defined(__COMPACT__))
- /* Allow compilation with ANSI keywords only enabled */
- void _Cdecl farfree( void *block );
- void *_Cdecl farmalloc( unsigned long nbytes );
-# else
-# include <alloc.h>
+# ifndef Z_SOLO
+# if defined(__TURBOC__) || defined(__BORLANDC__)
+# if (__STDC__ == 1) && (defined(__LARGE__) || defined(__COMPACT__))
+ /* Allow compilation with ANSI keywords only enabled */
+ void _Cdecl farfree( void *block );
+ void *_Cdecl farmalloc( unsigned long nbytes );
+# else
+# include <alloc.h>
+# endif
+# else /* MSC or DJGPP */
+# include <malloc.h>
# endif
-# else /* MSC or DJGPP */
-# include <malloc.h>
# endif
#endif
@@ -107,18 +113,20 @@
#ifdef OS2
# define OS_CODE 0x06
-# ifdef M_I86
+# if defined(M_I86) && !defined(Z_SOLO)
# include <malloc.h>
# endif
#endif
#if defined(MACOS) || defined(TARGET_OS_MAC)
# define OS_CODE 0x07
-# if defined(__MWERKS__) && __dest_os != __be_os && __dest_os != __win32_os
-# include <unix.h> /* for fdopen */
-# else
-# ifndef fdopen
-# define fdopen(fd,mode) NULL /* No fdopen() */
+# ifndef Z_SOLO
+# if defined(__MWERKS__) && __dest_os != __be_os && __dest_os != __win32_os
+# include <unix.h> /* for fdopen */
+# else
+# ifndef fdopen
+# define fdopen(fd,mode) NULL /* No fdopen() */
+# endif
# endif
# endif
#endif
@@ -153,14 +161,14 @@
# endif
#endif
-#if defined(__BORLANDC__)
+#if defined(__BORLANDC__) && !defined(MSDOS)
#pragma warn -8004
#pragma warn -8008
#pragma warn -8066
#endif
/* provide prototypes for these when building zlib without LFS */
-#if !defined(_LARGEFILE64_SOURCE) || _LFS64_LARGEFILE-0 == 0
+#if !defined(_WIN32) && (!defined(_LARGEFILE64_SOURCE) || _LFS64_LARGEFILE-0 == 0)
ZEXTERN uLong ZEXPORT adler32_combine64 OF((uLong, uLong, z_off_t));
ZEXTERN uLong ZEXPORT crc32_combine64 OF((uLong, uLong, z_off_t));
#endif
@@ -177,42 +185,7 @@
/* functions */
-#if defined(STDC99) || (defined(__TURBOC__) && __TURBOC__ >= 0x550)
-# ifndef HAVE_VSNPRINTF
-# define HAVE_VSNPRINTF
-# endif
-#endif
-#if defined(__CYGWIN__)
-# ifndef HAVE_VSNPRINTF
-# define HAVE_VSNPRINTF
-# endif
-#endif
-#ifndef HAVE_VSNPRINTF
-# ifdef MSDOS
- /* vsnprintf may exist on some MS-DOS compilers (DJGPP?),
- but for now we just assume it doesn't. */
-# define NO_vsnprintf
-# endif
-# ifdef __TURBOC__
-# define NO_vsnprintf
-# endif
-# ifdef WIN32
- /* In Win32, vsnprintf is available as the "non-ANSI" _vsnprintf. */
-# if !defined(vsnprintf) && !defined(NO_vsnprintf)
-# if !defined(_MSC_VER) || ( defined(_MSC_VER) && _MSC_VER < 1500 )
-# define vsnprintf _vsnprintf
-# endif
-# endif
-# endif
-# ifdef __SASC
-# define NO_vsnprintf
-# endif
-#endif
-#ifdef VMS
-# define NO_vsnprintf
-#endif
-
-#if defined(pyr)
+#if defined(pyr) || defined(Z_SOLO)
# define NO_MEMCPY
#endif
#if defined(SMALL_MEDIUM) && !defined(_MSC_VER) && !defined(__SC__)
@@ -261,10 +234,11 @@
# define Tracecv(c,x)
#endif
-
-voidpf ZLIB_INTERNAL zcalloc OF((voidpf opaque, unsigned items,
- unsigned size));
-void ZLIB_INTERNAL zcfree OF((voidpf opaque, voidpf ptr));
+#ifndef Z_SOLO
+ voidpf ZLIB_INTERNAL zcalloc OF((voidpf opaque, unsigned items,
+ unsigned size));
+ void ZLIB_INTERNAL zcfree OF((voidpf opaque, voidpf ptr));
+#endif
#define ZALLOC(strm, items, size) \
(*((strm)->zalloc))((strm)->opaque, (items), (size))
