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zlib 1.0.8

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This commit is contained in:
Mark Adler 2011-09-09 23:18:57 -07:00
parent 7850e4e406
commit 6759211ad8
27 changed files with 482 additions and 144 deletions
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27
ChangeLog
View File

@ -1,6 +1,32 @@
ChangeLog file for zlib
Changes in 1.0.8 (27 Jan 1998)
- fixed offsets in contrib/asm386/gvmat32.asm (Gilles Vollant)
- fix gzgetc and gzputc for big endian systems (Markus Oberhumer)
- added compress2() to allow setting the compression level
- include sys/types.h to get off_t on some systems (Marc Lehmann & QingLong)
- use constant arrays for the static trees in trees.c instead of computing
them at run time (thanks to Ken Raeburn for this suggestion). To create
trees.h, compile with GEN_TREES_H and run "make test".
- check return code of example in "make test" and display result
- pass minigzip command line options to file_compress
- simplifying code of inflateSync to avoid gcc 2.8 bug
- support CC="gcc -Wall" in configure -s (QingLong)
- avoid a flush caused by ftell in gzopen for write mode (Ken Raeburn)
- fix test for shared library support to avoid compiler warnings
- zlib.lib -> zlib.dll in msdos/zlib.rc (Gilles Vollant)
- check for TARGET_OS_MAC in addition to MACOS (Brad Pettit)
- do not use fdopen for Metrowerks on Mac (Brad Pettit))
- add checks for gzputc and gzputc in example.c
- avoid warnings in gzio.c and deflate.c (Andreas Kleinert)
- use const for the CRC table (Ken Raeburn)
- fixed "make uninstall" for shared libraries
- use Tracev instead of Trace in infblock.c
- in example.c use correct compressed length for test_sync
- suppress +vnocompatwarnings in configure for HPUX (not always supported)
Changes in 1.0.7 (20 Jan 1998)
- fix gzseek which was broken in write mode
- return error for gzseek to negative absolute position
@ -81,7 +107,6 @@ Changes in 1.0.6 (19 Jan 1998)
- in Makefile.dj2, use copy and del instead of install and rm (Frank Donahoe)
- Avoid expanded $Id$. Use "rcs -kb" or "cvs admin -kb" to avoid Id expansion.
- check for unistd.h in configure (for off_t)
- use Tracev instead of Trace in infblock.c
- remove useless check parameter in inflate_blocks_free
- avoid useless assignment of s->check to itself in inflate_blocks_new
- do not flush twice in gzclose (thanks to Ken Raeburn)

28
Makefile
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@ -5,6 +5,7 @@
# To compile and test, type:
# ./configure; make test
# The call of configure is optional if you don't have special requirements
# If you wish to build zlib as a shared library, use: ./configure -s
# To install /usr/local/lib/libz.* and /usr/local/include/zlib.h, type:
# make install
@ -22,7 +23,7 @@ CFLAGS=-O
LDFLAGS=-L. -lz
LDSHARED=$(CC)
VER=1.0.7
VER=1.0.8
LIBS=libz.a
SHAREDLIB=libz.so
@ -51,8 +52,13 @@ all: example minigzip
test: all
@LD_LIBRARY_PATH=.:$(LD_LIBRARY_PATH) ; export LD_LIBRARY_PATH; \
./example ; \
echo hello world | ./minigzip | ./minigzip -d
echo hello world | ./minigzip | ./minigzip -d || \
echo ' *** minigzip test FAILED ***' ; \
if ./example; then \
echo ' *** zlib test OK ***'; \
else \
echo ' *** zlib test FAILED ***'; \
fi
libz.a: $(OBJS)
$(AR) $@ $(OBJS)
@ -88,12 +94,16 @@ install: $(LIBS)
# ldconfig is for Linux
uninstall:
cd $(exec_prefix)/lib; rm -f $(LIBS); \
if test -f $(SHAREDLIB); then \
v=`sed -n '/VERSION "/s/.*"\(.*\)".*/\1/p'<$(prefix)/include/zlib.h`;\
rm -f $(SHAREDLIB).$$v $(SHAREDLIB); \
cd $(prefix)/include; \
v=$(VER); \
if test -f zlib.h; then \
v=`sed -n '/VERSION "/s/.*"\(.*\)".*/\1/p' < zlib.h`; \
rm -f zlib.h zconf.h; \
fi; \
cd $(exec_prefix)/lib; rm -f libz.a; \
if test -f $(SHAREDLIB).$$v; then \
rm -f $(SHAREDLIB).$$v $(SHAREDLIB) $(SHAREDLIB).1; \
fi
cdz $(prefix)/include; rm -f zlib.h zconf.h
clean:
rm -f *.o *~ example minigzip libz.a libz.so* foo.gz
@ -141,6 +151,6 @@ inflate.o: zutil.h zlib.h zconf.h infblock.h
inftrees.o: zutil.h zlib.h zconf.h inftrees.h
infutil.o: zutil.h zlib.h zconf.h infblock.h inftrees.h infcodes.h infutil.h
minigzip.o: zlib.h zconf.h
trees.o: deflate.h zutil.h zlib.h zconf.h
trees.o: deflate.h zutil.h zlib.h zconf.h trees.h
uncompr.o: zlib.h zconf.h
zutil.o: zutil.h zlib.h zconf.h

28
Makefile.in
View File

@ -5,6 +5,7 @@
# To compile and test, type:
# ./configure; make test
# The call of configure is optional if you don't have special requirements
# If you wish to build zlib as a shared library, use: ./configure -s
# To install /usr/local/lib/libz.* and /usr/local/include/zlib.h, type:
# make install
@ -22,7 +23,7 @@ CFLAGS=-O
LDFLAGS=-L. -lz
LDSHARED=$(CC)
VER=1.0.7
VER=1.0.8
LIBS=libz.a
SHAREDLIB=libz.so
@ -51,8 +52,13 @@ all: example minigzip
test: all
@LD_LIBRARY_PATH=.:$(LD_LIBRARY_PATH) ; export LD_LIBRARY_PATH; \
./example ; \
echo hello world | ./minigzip | ./minigzip -d
echo hello world | ./minigzip | ./minigzip -d || \
echo ' *** minigzip test FAILED ***' ; \
if ./example; then \
echo ' *** zlib test OK ***'; \
else \
echo ' *** zlib test FAILED ***'; \
fi
libz.a: $(OBJS)
$(AR) $@ $(OBJS)
@ -88,12 +94,16 @@ install: $(LIBS)
# ldconfig is for Linux
uninstall:
cd $(exec_prefix)/lib; rm -f $(LIBS); \
if test -f $(SHAREDLIB); then \
v=`sed -n '/VERSION "/s/.*"\(.*\)".*/\1/p'<$(prefix)/include/zlib.h`;\
rm -f $(SHAREDLIB).$$v $(SHAREDLIB); \
cd $(prefix)/include; \
v=$(VER); \
if test -f zlib.h; then \
v=`sed -n '/VERSION "/s/.*"\(.*\)".*/\1/p' < zlib.h`; \
rm -f zlib.h zconf.h; \
fi; \
cd $(exec_prefix)/lib; rm -f libz.a; \
if test -f $(SHAREDLIB).$$v; then \
rm -f $(SHAREDLIB).$$v $(SHAREDLIB) $(SHAREDLIB).1; \
fi
cdz $(prefix)/include; rm -f zlib.h zconf.h
clean:
rm -f *.o *~ example minigzip libz.a libz.so* foo.gz
@ -141,6 +151,6 @@ inflate.o: zutil.h zlib.h zconf.h infblock.h
inftrees.o: zutil.h zlib.h zconf.h inftrees.h
infutil.o: zutil.h zlib.h zconf.h infblock.h inftrees.h infcodes.h infutil.h
minigzip.o: zlib.h zconf.h
trees.o: deflate.h zutil.h zlib.h zconf.h
trees.o: deflate.h zutil.h zlib.h zconf.h trees.h
uncompr.o: zlib.h zconf.h
zutil.o: zutil.h zlib.h zconf.h

45
README
View File

@ -1,15 +1,16 @@
zlib 1.0.7 is a general purpose data compression library. All the code
is reentrant (thread safe). The data format used by the zlib library
zlib 1.0.8 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
ftp://ds.internic.net/rfc/rfc1950.txt (zlib format), rfc1951.txt (deflate
format) and rfc1952.txt (gzip format). These documents are also available in
other formats from ftp://ftp.uu.net/graphics/png/documents/zlib/zdoc-index.html
All functions of the compression library are documented in the file
zlib.h. 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.
All functions of the compression library are documented in the file zlib.h
(volunteer to write man pages welcome, contact jloup@gzip.org). A usage
example of the library is given in the file example.c which also tests that
the library is working correctly. Another example is given in the file
minigzip.c. The compression library itself is composed of all source files
except example.c and minigzip.c.
To compile all files and run the test program, follow the instructions
given at the top of Makefile. In short "make test; make install"
@ -24,18 +25,18 @@ Mark Nelson wrote an article about zlib for the Jan. 1997 issue of
Dr. Dobb's Journal; a copy of the article is available in
http://web2.airmail.net/markn/articles/zlibtool/zlibtool.htm
The changes made in version 1.0.7 are documented in the file ChangeLog.
The main changes since 1.0.6 are:
The changes made in version 1.0.8 are documented in the file ChangeLog.
The main changes since 1.0.7 are:
- fix gzseek which was broken in write mode
- return error for gzseek to negative absolute position
- fix configure for Linux (Chun-Chung Chen)
- increase stack space for MSC (Tim Wegner)
- get_crc_table and inflateSyncPoint are EXPORTed (Gilles Vollant)
- define EXPORTVA for gzprintf (Gilles Vollant)
- added mini man page zlib.3 (Rick Rodgers) [volunteers to write full
man pages from zlib.h most welcome. write to jloup@gzip.org]
- for contrib/untgz, fix makedir() and improve Makefile
- fixed offsets in contrib/asm386/gvmat32.asm (Gilles Vollant)
- fix gzgetc and gzputc for big endian systems (Markus Oberhumer)
- added compress2() to allow setting the compression level
- include sys/types.h to get off_t on some systems (Marc Lehmann & QingLong)
- use constant arrays for the static trees in trees.c instead of computing
them at run time (thanks to Ken Raeburn for this suggestion). To create
trees.h, compile with GEN_TREES_H and run "make test".
- check return code of example in "make test" and display result
- pass minigzip command line options to file_compress
Unsupported third party contributions are provided in directory "contrib".
@ -64,6 +65,9 @@ Notes for some targets:
See contrib/visual-basic.txt for more information.
I don't know how to handle structures in Visual Basic, sorry.
- "make test" fails on Solaris 2.6 with gcc 2.8.0. It works with cc and
with gcc 2.7.2.1.
- For 64-bit Irix, deflate.c must be compiled without any optimization.
With -O, one libpng test fails. The test works in 32 bit mode (with
the -n32 compiler flag). The compiler bug has been reported to SGI.
@ -74,7 +78,10 @@ Notes for some targets:
- zlib doesn't work on HP-UX 9.05 with one cc compiler (the one not
accepting the -O option). It works with the other cc compiler.
- gzdopen is not supported on RISCOS
- For shared memory multiprocessors, the decompression code assumes that
writes to pointers are atomic.
- gzdopen is not supported on RISCOS, BEOS and Mac
- For Turbo C the small model is supported only with reduced performance to
avoid any far allocation; it was tested with -DMAX_WBITS=11 -DMAX_MEM_LEVEL=3

35
compress.c
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@ -8,22 +8,22 @@
#include "zlib.h"
/* ===========================================================================
Compresses the source buffer into the destination buffer. sourceLen is
the byte length of the source buffer. Upon entry, destLen is the total
size of the destination buffer, which must be at least 0.1% larger than
sourceLen plus 8 bytes. Upon exit, destLen is the actual size of the
compressed buffer.
This function can be used to compress a whole file at once if the
input file is mmap'ed.
compress 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.
Compresses the source buffer into the destination buffer. The level
parameter has the same meaning as in deflateInit. sourceLen is the byte
length of the source buffer. Upon entry, destLen is the total size of the
destination buffer, which must be at least 0.1% larger than sourceLen plus
12 bytes. Upon exit, destLen is the actual size of the compressed buffer.
compress2 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,
Z_STREAM_ERROR if the level parameter is invalid.
*/
int EXPORT compress (dest, destLen, source, sourceLen)
int EXPORT compress2 (dest, destLen, source, sourceLen, level)
Bytef *dest;
uLongf *destLen;
const Bytef *source;
uLong sourceLen;
int level;
{
z_stream stream;
int err;
@ -42,7 +42,7 @@ int EXPORT compress (dest, destLen, source, sourceLen)
stream.zfree = (free_func)0;
stream.opaque = (voidpf)0;
err = deflateInit(&stream, Z_DEFAULT_COMPRESSION);
err = deflateInit(&stream, level);
if (err != Z_OK) return err;
err = deflate(&stream, Z_FINISH);
@ -55,3 +55,14 @@ int EXPORT compress (dest, destLen, source, sourceLen)
err = deflateEnd(&stream);
return err;
}
/* ===========================================================================
*/
int EXPORT compress (dest, destLen, source, sourceLen)
Bytef *dest;
uLongf *destLen;
const Bytef *source;
uLong sourceLen;
{
return compress2(dest, destLen, source, sourceLen, Z_DEFAULT_COMPRESSION);
}

39
configure vendored
View File

@ -29,15 +29,23 @@ case "$1" in
-h* | --h*) echo 'syntax: configure [ --shared ]'; exit 0;;
esac
test -z "$CC" && echo Checking for gcc...
test=ztest$$
cat > $test.c <<EOF
int hello() { printf("hello\n"); }
extern int getchar();
int hello() {return getchar();}
EOF
if test -z "$CC" -o "$CC" = "gcc" && (gcc -c -O3 $test.c) 2>/dev/null; then
CC=gcc
test -z "$CC" && echo Checking for gcc...
cc=${CC-gcc}
cflags=${CFLAGS-"-O3"}
case "$cc" in
*gcc*) gcc=1;;
esac
if test "$gcc" -eq 1 && ($cc -c $cflags $test.c) 2>/dev/null; then
CC="$cc"
SFLAGS=${CFLAGS-"-fPIC -O3"}
CFLAGS=${CFLAGS-"-O3"}
CFLAGS="$cflags"
case `(uname -s || echo unknown) 2>/dev/null` in
Linux | linux) LDSHARED=${LDSHARED-"gcc -shared -Wl,-soname,libz.so.1"};;
*) LDSHARED=${LDSHARED-"gcc -shared"};;
@ -65,7 +73,8 @@ else
LDSHARED=${LDSHARED-"cc -dy -KPIC -G"};;
HP-UX*) SFLAGS=${CFLAGS-"-O +z"}
CFLAGS=${CFLAGS-"-O"}
LDSHARED=${LDSHARED-"ld -b +vnocompatwarnings"}
# LDSHARED=${LDSHARED-"ld -b +vnocompatwarnings"}
LDSHARED=${LDSHARED-"ld -b"}
shared_ext='.sl'
SHAREDLIB='libz.sl';;
UNIX_System_V\ 4.2.0)
@ -108,14 +117,14 @@ fi
# udpate Makefile
sed < Makefile.in "
/^CC *=/s,=.*,=$CC,
/^CFLAGS *=/s/=.*/=$CFLAGS/
/^CC *=/s%=.*%=$CC%
/^CFLAGS *=/s%=.*%=$CFLAGS%
/^LDSHARED *=/s%=.*%=$LDSHARED%
/^LIBS *=/s,=.*,=$LIBS,
/^SHAREDLIB *=/s,=.*,=$SHAREDLIB,
/^AR *=/s,=.*,=$AR,
/^RANLIB *=/s,=.*,=$RANLIB,
/^VER *=/s/=.*/=$VER/
/^prefix *=/s,=.*,=$prefix,
/^exec_prefix *=/s,=.*,=$exec_prefix,
/^LIBS *=/s%=.*%=$LIBS%
/^SHAREDLIB *=/s%=.*%=$SHAREDLIB%
/^AR *=/s%=.*%=$AR%
/^RANLIB *=/s%=.*%=$RANLIB%
/^VER *=/s%=.*%=$VER%
/^prefix *=/s%=.*%=$prefix%
/^exec_prefix *=/s%=.*%=$exec_prefix%
" > Makefile

3
contrib/README.contrib
View File

@ -5,8 +5,7 @@ for help about these, not the zlib authors. Thanks.
asm386/ by Gilles Vollant <info@winimage.com>
386 asm code replacing longest_match(). This code may be slower
than the C code if you have a good compiler.
386 asm code replacing longest_match(), for Visual C++ 4.2 and ML 6.11c
iostream/ by Kevin Ruland <kevin@rodin.wustl.edu>
A C++ I/O streams interface to the zlib gz* functions

25
contrib/asm386/gvmat32.asm
View File

@ -53,17 +53,19 @@
@lmtype TYPEDEF PROTO C :PTR , :SDWORD
longest_match_c PROTO @lmtype
dep_max_chain_length equ 70h
dep_window equ 2ch
dep_strstart equ 60h
dep_prev_length equ 6ch
dep_nice_match equ 84h
dep_w_size equ 20h
dep_prev equ 34h
dep_w_mask equ 28h
dep_good_match equ 80h
dep_match_start equ 64h
dep_lookahead equ 68h
; all the +4 offsets are due to the addition of pending_buf_size
; in the deflate_state structure since the asm code was first written
dep_chain_length equ 70h+4
dep_window equ 2ch+4
dep_strstart equ 60h+4
dep_prev_length equ 6ch+4
dep_nice_match equ 84h+4
dep_w_size equ 20h+4
dep_prev equ 34h+4
dep_w_mask equ 28h+4
dep_good_match equ 80h+4
dep_match_start equ 64h+4
dep_lookahead equ 68h+4
_TEXT segment
@ -461,4 +463,3 @@ _longest_match_asm7fff endp
_TEXT ends
end

8
crc32.c
View File

@ -45,7 +45,7 @@ local void make_crc_table()
int n, k;
uLong poly; /* polynomial exclusive-or pattern */
/* terms of polynomial defining this crc (except x^32): */
static Byte p[] = {0,1,2,4,5,7,8,10,11,12,16,22,23,26};
static const Byte p[] = {0,1,2,4,5,7,8,10,11,12,16,22,23,26};
/* make exclusive-or pattern from polynomial (0xedb88320L) */
poly = 0L;
@ -65,7 +65,7 @@ local void make_crc_table()
/* ========================================================================
* Table of CRC-32's of all single-byte values (made by make_crc_table)
*/
local uLongf crc_table[256] = {
local const uLongf crc_table[256] = {
0x00000000L, 0x77073096L, 0xee0e612cL, 0x990951baL, 0x076dc419L,
0x706af48fL, 0xe963a535L, 0x9e6495a3L, 0x0edb8832L, 0x79dcb8a4L,
0xe0d5e91eL, 0x97d2d988L, 0x09b64c2bL, 0x7eb17cbdL, 0xe7b82d07L,
@ -124,12 +124,12 @@ local uLongf crc_table[256] = {
/* =========================================================================
* This function can be used by asm versions of crc32()
*/
uLongf * EXPORT get_crc_table()
const uLongf * EXPORT get_crc_table()
{
#ifdef DYNAMIC_CRC_TABLE
if (crc_table_empty) make_crc_table();
#endif
return (uLongf *)crc_table;
return (const uLongf *)crc_table;
}
/* ========================================================================= */

4
deflate.c
View File

@ -52,7 +52,7 @@
#include "deflate.h"
const char deflate_copyright[] =
" deflate 1.0.7 Copyright 1995-1998 Jean-loup Gailly ";
" deflate 1.0.8 Copyright 1995-1998 Jean-loup Gailly ";
/*
If you use the zlib library in a product, an acknowledgment is welcome
in the documentation of your product. If for some reason you cannot
@ -842,7 +842,7 @@ local uInt longest_match(s, cur_match)
} while ((cur_match = prev[cur_match & wmask]) > limit
&& --chain_length != 0);
if ((uInt)best_len <= s->lookahead) return best_len;
if ((uInt)best_len <= s->lookahead) return (uInt)best_len;
return s->lookahead;
}
#endif /* ASMV */

40
example.c
View File

@ -41,7 +41,7 @@ void test_large_deflate OF((Byte *compr, uLong comprLen,
Byte *uncompr, uLong uncomprLen));
void test_large_inflate OF((Byte *compr, uLong comprLen,
Byte *uncompr, uLong uncomprLen));
void test_flush OF((Byte *compr, uLong comprLen));
void test_flush OF((Byte *compr, uLong *comprLen));
void test_sync OF((Byte *compr, uLong comprLen,
Byte *uncompr, uLong uncomprLen));
void test_dict_deflate OF((Byte *compr, uLong comprLen));
@ -69,6 +69,7 @@ void test_compress(compr, comprLen, uncompr, uncomprLen)
if (strcmp((char*)uncompr, hello)) {
fprintf(stderr, "bad uncompress\n");
exit(1);
} else {
printf("uncompress(): %s\n", uncompr);
}
@ -93,8 +94,10 @@ void test_gzio(out, in, uncompr, uncomprLen)
fprintf(stderr, "gzopen error\n");
exit(1);
}
if (gzprintf(file, "%s, %s!", "hello", "hello") != len-1) {
gzputc(file, 'h');
if (gzprintf(file, "%s, %s!", "ello", "hello") != len-2) {
fprintf(stderr, "gzprintf err: %s\n", gzerror(file, &err));
exit(1);
}
gzseek(file, 1L, SEEK_CUR); /* add one zero byte */
gzclose(file);
@ -108,24 +111,35 @@ void test_gzio(out, in, uncompr, uncomprLen)
uncomprLen = gzread(file, uncompr, (unsigned)uncomprLen);
if (uncomprLen != len) {
fprintf(stderr, "gzread err: %s\n", gzerror(file, &err));
exit(1);
}
if (strcmp((char*)uncompr, hello)) {
fprintf(stderr, "bad gzread\n");
fprintf(stderr, "bad gzread: %s\n", (char*)uncompr);
exit(1);
} else {
printf("gzread(): %s\n", uncompr);
}
pos = gzseek(file, -7L, SEEK_CUR);
if (pos != 7 || gztell(file) != pos) {
pos = gzseek(file, -8L, SEEK_CUR);
if (pos != 6 || gztell(file) != pos) {
fprintf(stderr, "gzseek error, pos=%ld, gztell=%ld\n",
pos, gztell(file));
exit(1);
}
if (gzgetc(file) != ' ') {
fprintf(stderr, "gzgetc error\n");
exit(1);
}
uncomprLen = gzread(file, uncompr, (unsigned)uncomprLen);
if (uncomprLen != 7) {
fprintf(stderr, "gzread err after gzseek: %s\n", gzerror(file, &err));
exit(1);
}
if (strcmp((char*)uncompr, hello+7)) {
fprintf(stderr, "bad gzread after gzseek\n");
exit(1);
} else {
printf("gzread() after gzseek: %s\n", uncompr);
}
@ -206,6 +220,7 @@ void test_inflate(compr, comprLen, uncompr, uncomprLen)
if (strcmp((char*)uncompr, hello)) {
fprintf(stderr, "bad inflate\n");
exit(1);
} else {
printf("inflate(): %s\n", uncompr);
}
@ -240,6 +255,7 @@ void test_large_deflate(compr, comprLen, uncompr, uncomprLen)
CHECK_ERR(err, "deflate");
if (c_stream.avail_in != 0) {
fprintf(stderr, "deflate not greedy\n");
exit(1);
}
/* Feed in already compressed data and switch to no compression: */
@ -259,6 +275,7 @@ void test_large_deflate(compr, comprLen, uncompr, uncomprLen)
err = deflate(&c_stream, Z_FINISH);
if (err != Z_STREAM_END) {
fprintf(stderr, "deflate should report Z_STREAM_END\n");
exit(1);
}
err = deflateEnd(&c_stream);
CHECK_ERR(err, "deflateEnd");
@ -299,6 +316,7 @@ void test_large_inflate(compr, comprLen, uncompr, uncomprLen)
if (d_stream.total_out != 2*uncomprLen + comprLen/2) {
fprintf(stderr, "bad large inflate: %ld\n", d_stream.total_out);
exit(1);
} else {
printf("large_inflate(): OK\n");
}
@ -309,7 +327,7 @@ void test_large_inflate(compr, comprLen, uncompr, uncomprLen)
*/
void test_flush(compr, comprLen)
Byte *compr;
uLong comprLen;
uLong *comprLen;
{
z_stream c_stream; /* compression stream */
int err;
@ -325,7 +343,7 @@ void test_flush(compr, comprLen)
c_stream.next_in = (Bytef*)hello;
c_stream.next_out = compr;
c_stream.avail_in = 3;
c_stream.avail_out = (uInt)comprLen;
c_stream.avail_out = (uInt)*comprLen;
err = deflate(&c_stream, Z_FULL_FLUSH);
CHECK_ERR(err, "deflate");
@ -338,6 +356,8 @@ void test_flush(compr, comprLen)
}
err = deflateEnd(&c_stream);
CHECK_ERR(err, "deflateEnd");
*comprLen = c_stream.total_out;
}
/* ===========================================================================
@ -376,6 +396,7 @@ void test_sync(compr, comprLen, uncompr, uncomprLen)
if (err != Z_DATA_ERROR) {
fprintf(stderr, "inflate should report DATA_ERROR\n");
/* Because of incorrect adler32 */
exit(1);
}
err = inflateEnd(&d_stream);
CHECK_ERR(err, "inflateEnd");
@ -414,6 +435,7 @@ void test_dict_deflate(compr, comprLen)
err = deflate(&c_stream, Z_FINISH);
if (err != Z_STREAM_END) {
fprintf(stderr, "deflate should report Z_STREAM_END\n");
exit(1);
}
err = deflateEnd(&c_stream);
CHECK_ERR(err, "deflateEnd");
@ -463,6 +485,7 @@ void test_dict_inflate(compr, comprLen, uncompr, uncomprLen)
if (strcmp((char*)uncompr, hello)) {
fprintf(stderr, "bad inflate with dict\n");
exit(1);
} else {
printf("inflate with dictionary: %s\n", uncompr);
}
@ -510,8 +533,9 @@ int main(argc, argv)
test_large_deflate(compr, comprLen, uncompr, uncomprLen);
test_large_inflate(compr, comprLen, uncompr, uncomprLen);
test_flush(compr, comprLen);
test_flush(compr, &comprLen);
test_sync(compr, comprLen, uncompr, uncomprLen);
comprLen = uncomprLen;
test_dict_deflate(compr, comprLen);
test_dict_inflate(compr, comprLen, uncompr, uncomprLen);

17
gzio.c
View File

@ -150,7 +150,12 @@ local gzFile gz_open (path, mode, fd)
*/
fprintf(s->file, "%c%c%c%c%c%c%c%c%c%c", gz_magic[0], gz_magic[1],
Z_DEFLATED, 0 /*flags*/, 0,0,0,0 /*time*/, 0 /*xflags*/, OS_CODE);
s->startpos = ftell(s->file);
s->startpos = 10L;
/* We use 10L instead of ftell(s->file) to because ftell causes an
* fflush on some systems. This version of the library doesn't use
* startpos anyway in write mode, so this initialization is not
* necessary.
*/
} else {
check_header(s); /* skip the .gz header */
s->startpos = (ftell(s->file) - s->stream.avail_in);
@ -423,7 +428,7 @@ int EXPORT gzread (file, buf, len)
int EXPORT gzgetc(file)
gzFile file;
{
int c;
unsigned char c;
return gzread(file, &c, 1) == 1 ? c : -1;
}
@ -524,7 +529,9 @@ int EXPORT gzputc(file, c)
gzFile file;
int c;
{
return gzwrite(file, &c, 1) == 1 ? c : -1;
unsigned char cc = (unsigned char) c; /* required for big endian systems */
return gzwrite(file, &cc, 1) == 1 ? (int)cc : -1;
}
@ -627,7 +634,7 @@ z_off_t EXPORT gzseek (file, offset, whence)
offset -= size;
}
return s->stream.total_in;
return (z_off_t)s->stream.total_in;
#endif
}
/* Rest of function is for reading only */
@ -667,7 +674,7 @@ z_off_t EXPORT gzseek (file, offset, whence)
if (size <= 0) return -1L;
offset -= size;
}
return s->stream.total_out;
return (z_off_t)s->stream.total_out;
}
/* ===========================================================================

12
infblock.c
View File

@ -82,7 +82,7 @@ uLongf *c;
s->read = s->write = s->window;
if (s->checkfn != Z_NULL)
z->adler = s->check = (*s->checkfn)(0L, (const Bytef *)Z_NULL, 0);
Trace((stderr, "inflate: blocks reset\n"));
Tracev((stderr, "inflate: blocks reset\n"));
}
@ -104,7 +104,7 @@ uInt w;
s->end = s->window + w;
s->checkfn = c;
s->mode = TYPE;
Trace((stderr, "inflate: blocks allocated\n"));
Tracev((stderr, "inflate: blocks allocated\n"));
inflate_blocks_reset(s, z, Z_NULL);
return s;
}
@ -139,7 +139,7 @@ int r;
switch (t >> 1)
{
case 0: /* stored */
Trace((stderr, "inflate: stored block%s\n",
Tracev((stderr, "inflate: stored block%s\n",
s->last ? " (last)" : ""));
DUMPBITS(3)
t = k & 7; /* go to byte boundary */
@ -147,7 +147,7 @@ int r;
s->mode = LENS; /* get length of stored block */
break;
case 1: /* fixed */
Trace((stderr, "inflate: fixed codes block%s\n",
Tracev((stderr, "inflate: fixed codes block%s\n",
s->last ? " (last)" : ""));
{
uInt bl, bd;
@ -167,7 +167,7 @@ int r;
s->mode = CODES;
break;
case 2: /* dynamic */
Trace((stderr, "inflate: dynamic codes block%s\n",
Tracev((stderr, "inflate: dynamic codes block%s\n",
s->last ? " (last)" : ""));
DUMPBITS(3)
s->mode = TABLE;
@ -387,7 +387,7 @@ z_streamp z;
inflate_blocks_reset(s, z, Z_NULL);
ZFREE(z, s->window);
ZFREE(z, s);
Trace((stderr, "inflate: blocks freed\n"));
Tracev((stderr, "inflate: blocks freed\n"));
return Z_OK;
}

3
inflate.c
View File

@ -321,7 +321,8 @@ z_streamp z;
/* search */
while (n && m < 4)
{
if (*p == (Byte)(m < 2 ? 0 : 0xff))
static const Byte mark[4] = {0, 0, 0xff, 0xff};
if (*p == mark[m])
m++;
else if (*p)
m = 0;

2
inftrees.c
View File

@ -7,7 +7,7 @@
#include "inftrees.h"
const char inflate_copyright[] =
" inflate 1.0.7 Copyright 1995-1998 Mark Adler ";
" inflate 1.0.8 Copyright 1995-1998 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

9
minigzip.c
View File

@ -66,7 +66,7 @@ char *prog;
void error OF((const char *msg));
void gz_compress OF((FILE *in, gzFile out));
void gz_uncompress OF((gzFile in, FILE *out));
void file_compress OF((char *file));
void file_compress OF((char *file, char *mode));
void file_uncompress OF((char *file));
int main OF((int argc, char *argv[]));
@ -135,8 +135,9 @@ void gz_uncompress(in, out)
* Compress the given file: create a corresponding .gz file and remove the
* original.
*/
void file_compress(file)
void file_compress(file, mode)
char *file;
char *mode;
{
local char outfile[MAX_NAME_LEN];
FILE *in;
@ -150,7 +151,7 @@ void file_compress(file)
perror(file);
exit(1);
}
out = gzopen(outfile, "wb"); /* use "wb9" for maximal compression */
out = gzopen(outfile, mode);
if (out == NULL) {
fprintf(stderr, "%s: can't gzopen %s\n", prog, outfile);
exit(1);
@ -253,7 +254,7 @@ int main(argc, argv)
if (uncompr) {
file_uncompress(*argv);
} else {
file_compress(*argv);
file_compress(*argv, outmode);
}
} while (argv++, --argc);
}

2
msdos/zlib.def
View File

@ -8,7 +8,7 @@ SUBSYSTEM WINDOWS
STUB 'WINSTUB.EXE'
VERSION 1.07
VERSION 1.08
CODE EXECUTE READ

8
msdos/zlib.rc
View File

@ -2,8 +2,8 @@
#define IDR_VERSION1 1
IDR_VERSION1 VERSIONINFO MOVEABLE IMPURE LOADONCALL DISCARDABLE
FILEVERSION 1,0,7,0
PRODUCTVERSION 1,0,7,0
FILEVERSION 1,0,8,0
PRODUCTVERSION 1,0,8,0
FILEFLAGSMASK VS_FFI_FILEFLAGSMASK
FILEFLAGS 0
FILEOS VOS_DOS_WINDOWS32
@ -17,9 +17,9 @@ BEGIN
BEGIN
VALUE "FileDescription", "zlib data compression library\0"
VALUE "FileVersion", "1.0.7\0"
VALUE "FileVersion", "1.0.8\0"
VALUE "InternalName", "zlib\0"
VALUE "OriginalFilename", "zlib.lib\0"
VALUE "OriginalFilename", "zlib.dll\0"
VALUE "ProductName", "ZLib.DLL\0"
VALUE "Comments","DLL support by Alessandro Iacopetti & Gilles Vollant\0"
VALUE "LegalCopyright", "(C) 1995-1998 Jean-loup Gailly & Mark Adler\0"

2
test.c Normal file
View File

@ -0,0 +1,2 @@
extern int getchar();
int hello() {return getchar();}

112
trees.c
View File

@ -31,6 +31,8 @@
/* @(#) $Id$ */
/* #define GEN_TREES_H */
#include "deflate.h"
#ifdef DEBUG
@ -80,6 +82,11 @@ local const uch bl_order[BL_CODES]
* Local data. These are initialized only once.
*/
#define DIST_CODE_LEN 512 /* see definition of array dist_code below */
#if defined(GEN_TREES_H) || !defined(STDC)
/* non ANSI compilers may not accept trees.h */
local ct_data static_ltree[L_CODES+2];
/* The static literal tree. Since the bit lengths are imposed, there is no
* need for the L_CODES extra codes used during heap construction. However
@ -92,8 +99,8 @@ local ct_data static_dtree[D_CODES];
* 5 bits.)
*/
local uch dist_code[512];
/* distance codes. The first 256 values correspond to the distances
local uch dist_code[DIST_CODE_LEN];
/* Distance codes. The first 256 values correspond to the distances
* 3 .. 258, the last 256 values correspond to the top 8 bits of
* the 15 bit distances.
*/
@ -107,8 +114,12 @@ local int base_length[LENGTH_CODES];
local int base_dist[D_CODES];
/* First normalized distance for each code (0 = distance of 1) */
#else
# include "trees.h"
#endif /* GEN_TREES_H */
struct static_tree_desc_s {
ct_data *static_tree; /* static tree or NULL */
const ct_data *static_tree; /* static tree or NULL */
const intf *extra_bits; /* extra bits for each code or NULL */
int extra_base; /* base index for extra_bits */
int elems; /* max number of elements in the tree */
@ -122,7 +133,7 @@ local static_tree_desc static_d_desc =
{static_dtree, extra_dbits, 0, D_CODES, MAX_BITS};
local static_tree_desc static_bl_desc =
{(ct_data *)0, extra_blbits, 0, BL_CODES, MAX_BL_BITS};
{(const ct_data *)0, extra_blbits, 0, BL_CODES, MAX_BL_BITS};
/* ===========================================================================
* Local (static) routines in this file.
@ -148,6 +159,10 @@ local void bi_flush OF((deflate_state *s));
local void copy_block OF((deflate_state *s, charf *buf, unsigned len,
int header));
#ifdef GEN_TREES_H
local void gen_trees_header OF((void));
#endif
#ifndef DEBUG
# define send_code(s, c, tree) send_bits(s, tree[c].Code, tree[c].Len)
/* Send a code of the given tree. c and tree must not have side effects */
@ -226,12 +241,11 @@ local void send_bits(s, value, length)
/* the arguments must not have side effects */
/* ===========================================================================
* Initialize the various 'constant' tables. In a multi-threaded environment,
* this function may be called by two threads concurrently, but this is
* harmless since both invocations do exactly the same thing.
* Initialize the various 'constant' tables.
*/
local void tr_static_init()
{
#if defined(GEN_TREES_H) || !defined(STDC)
static int static_init_done = 0;
int n; /* iterates over tree elements */
int bits; /* bit counter */
@ -295,8 +309,74 @@ local void tr_static_init()
static_dtree[n].Code = bi_reverse((unsigned)n, 5);
}
static_init_done = 1;
# ifdef GEN_TREES_H
gen_trees_header();
# endif
#endif /* defined(GEN_TREES_H) || !defined(STDC) */
}
/* ===========================================================================
* Genererate the file trees.h describing the static trees.
*/
#ifdef GEN_TREES_H
# ifndef DEBUG
# include <stdio.h>
# endif
# define SEPARATOR(i, last, width) \
((i) == (last)? "\n};\n\n" : \
((i) % (width) == (width)-1 ? ",\n" : ", "))
void gen_trees_header()
{
FILE *header = fopen("trees.h", "w");
int i;
Assert (header != NULL, "Can't open trees.h");
fprintf(header,
"/* header created automatically with -DGEN_TREES_H */\n\n");
fprintf(header, "local const ct_data static_ltree[L_CODES+2] = {\n");
for (i = 0; i < L_CODES+2; i++) {
fprintf(header, "{{%3u},{%3u}}%s", static_ltree[i].Code,
static_ltree[i].Len, SEPARATOR(i, L_CODES+1, 5));
}
fprintf(header, "local const ct_data static_dtree[D_CODES] = {\n");
for (i = 0; i < D_CODES; i++) {
fprintf(header, "{{%2u},{%2u}}%s", static_dtree[i].Code,
static_dtree[i].Len, SEPARATOR(i, D_CODES-1, 5));
}
fprintf(header, "local const uch dist_code[DIST_CODE_LEN] = {\n");
for (i = 0; i < DIST_CODE_LEN; i++) {
fprintf(header, "%2u%s", dist_code[i],
SEPARATOR(i, DIST_CODE_LEN-1, 20));
}
fprintf(header, "local const uch length_code[MAX_MATCH-MIN_MATCH+1]= {\n");
for (i = 0; i < MAX_MATCH-MIN_MATCH+1; i++) {
fprintf(header, "%2u%s", length_code[i],
SEPARATOR(i, MAX_MATCH-MIN_MATCH, 20));
}
fprintf(header, "local const int base_length[LENGTH_CODES] = {\n");
for (i = 0; i < LENGTH_CODES; i++) {
fprintf(header, "%1u%s", base_length[i],
SEPARATOR(i, LENGTH_CODES-1, 20));
}
fprintf(header, "local const int base_dist[D_CODES] = {\n");
for (i = 0; i < D_CODES; i++) {
fprintf(header, "%5u%s", base_dist[i],
SEPARATOR(i, D_CODES-1, 10));
}
fclose(header);
}
#endif /* GEN_TREES_H */
/* ===========================================================================
* Initialize the tree data structures for a new zlib stream.
*/
@ -413,12 +493,12 @@ local void gen_bitlen(s, desc)
deflate_state *s;
tree_desc *desc; /* the tree descriptor */
{
ct_data *tree = desc->dyn_tree;
int max_code = desc->max_code;
ct_data *stree = desc->stat_desc->static_tree;
const intf *extra = desc->stat_desc->extra_bits;
int base = desc->stat_desc->extra_base;
int max_length = desc->stat_desc->max_length;
ct_data *tree = desc->dyn_tree;
int max_code = desc->max_code;
const ct_data *stree = desc->stat_desc->static_tree;
const intf *extra = desc->stat_desc->extra_bits;
int base = desc->stat_desc->extra_base;
int max_length = desc->stat_desc->max_length;
int h; /* heap index */
int n, m; /* iterate over the tree elements */
int bits; /* bit length */
@ -542,9 +622,9 @@ local void build_tree(s, desc)
deflate_state *s;
tree_desc *desc; /* the tree descriptor */
{
ct_data *tree = desc->dyn_tree;
ct_data *stree = desc->stat_desc->static_tree;
int elems = desc->stat_desc->elems;
ct_data *tree = desc->dyn_tree;
const ct_data *stree = desc->stat_desc->static_tree;
int elems = desc->stat_desc->elems;
int n, m; /* iterate over heap elements */
int max_code = -1; /* largest code with non zero frequency */
int node; /* new node being created */

128
trees.h Normal file
View File

@ -0,0 +1,128 @@
/* header created automatically with -DGEN_TREES_H */
local const ct_data static_ltree[L_CODES+2] = {
{{ 12},{ 8}}, {{140},{ 8}}, {{ 76},{ 8}}, {{204},{ 8}}, {{ 44},{ 8}},
{{172},{ 8}}, {{108},{ 8}}, {{236},{ 8}}, {{ 28},{ 8}}, {{156},{ 8}},
{{ 92},{ 8}}, {{220},{ 8}}, {{ 60},{ 8}}, {{188},{ 8}}, {{124},{ 8}},
{{252},{ 8}}, {{ 2},{ 8}}, {{130},{ 8}}, {{ 66},{ 8}}, {{194},{ 8}},
{{ 34},{ 8}}, {{162},{ 8}}, {{ 98},{ 8}}, {{226},{ 8}}, {{ 18},{ 8}},
{{146},{ 8}}, {{ 82},{ 8}}, {{210},{ 8}}, {{ 50},{ 8}}, {{178},{ 8}},
{{114},{ 8}}, {{242},{ 8}}, {{ 10},{ 8}}, {{138},{ 8}}, {{ 74},{ 8}},
{{202},{ 8}}, {{ 42},{ 8}}, {{170},{ 8}}, {{106},{ 8}}, {{234},{ 8}},
{{ 26},{ 8}}, {{154},{ 8}}, {{ 90},{ 8}}, {{218},{ 8}}, {{ 58},{ 8}},
{{186},{ 8}}, {{122},{ 8}}, {{250},{ 8}}, {{ 6},{ 8}}, {{134},{ 8}},
{{ 70},{ 8}}, {{198},{ 8}}, {{ 38},{ 8}}, {{166},{ 8}}, {{102},{ 8}},
{{230},{ 8}}, {{ 22},{ 8}}, {{150},{ 8}}, {{ 86},{ 8}}, {{214},{ 8}},
{{ 54},{ 8}}, {{182},{ 8}}, {{118},{ 8}}, {{246},{ 8}}, {{ 14},{ 8}},
{{142},{ 8}}, {{ 78},{ 8}}, {{206},{ 8}}, {{ 46},{ 8}}, {{174},{ 8}},
{{110},{ 8}}, {{238},{ 8}}, {{ 30},{ 8}}, {{158},{ 8}}, {{ 94},{ 8}},
{{222},{ 8}}, {{ 62},{ 8}}, {{190},{ 8}}, {{126},{ 8}}, {{254},{ 8}},
{{ 1},{ 8}}, {{129},{ 8}}, {{ 65},{ 8}}, {{193},{ 8}}, {{ 33},{ 8}},
{{161},{ 8}}, {{ 97},{ 8}}, {{225},{ 8}}, {{ 17},{ 8}}, {{145},{ 8}},
{{ 81},{ 8}}, {{209},{ 8}}, {{ 49},{ 8}}, {{177},{ 8}}, {{113},{ 8}},
{{241},{ 8}}, {{ 9},{ 8}}, {{137},{ 8}}, {{ 73},{ 8}}, {{201},{ 8}},
{{ 41},{ 8}}, {{169},{ 8}}, {{105},{ 8}}, {{233},{ 8}}, {{ 25},{ 8}},
{{153},{ 8}}, {{ 89},{ 8}}, {{217},{ 8}}, {{ 57},{ 8}}, {{185},{ 8}},
{{121},{ 8}}, {{249},{ 8}}, {{ 5},{ 8}}, {{133},{ 8}}, {{ 69},{ 8}},
{{197},{ 8}}, {{ 37},{ 8}}, {{165},{ 8}}, {{101},{ 8}}, {{229},{ 8}},
{{ 21},{ 8}}, {{149},{ 8}}, {{ 85},{ 8}}, {{213},{ 8}}, {{ 53},{ 8}},
{{181},{ 8}}, {{117},{ 8}}, {{245},{ 8}}, {{ 13},{ 8}}, {{141},{ 8}},
{{ 77},{ 8}}, {{205},{ 8}}, {{ 45},{ 8}}, {{173},{ 8}}, {{109},{ 8}},
{{237},{ 8}}, {{ 29},{ 8}}, {{157},{ 8}}, {{ 93},{ 8}}, {{221},{ 8}},
{{ 61},{ 8}}, {{189},{ 8}}, {{125},{ 8}}, {{253},{ 8}}, {{ 19},{ 9}},
{{275},{ 9}}, {{147},{ 9}}, {{403},{ 9}}, {{ 83},{ 9}}, {{339},{ 9}},
{{211},{ 9}}, {{467},{ 9}}, {{ 51},{ 9}}, {{307},{ 9}}, {{179},{ 9}},
{{435},{ 9}}, {{115},{ 9}}, {{371},{ 9}}, {{243},{ 9}}, {{499},{ 9}},
{{ 11},{ 9}}, {{267},{ 9}}, {{139},{ 9}}, {{395},{ 9}}, {{ 75},{ 9}},
{{331},{ 9}}, {{203},{ 9}}, {{459},{ 9}}, {{ 43},{ 9}}, {{299},{ 9}},
{{171},{ 9}}, {{427},{ 9}}, {{107},{ 9}}, {{363},{ 9}}, {{235},{ 9}},
{{491},{ 9}}, {{ 27},{ 9}}, {{283},{ 9}}, {{155},{ 9}}, {{411},{ 9}},
{{ 91},{ 9}}, {{347},{ 9}}, {{219},{ 9}}, {{475},{ 9}}, {{ 59},{ 9}},
{{315},{ 9}}, {{187},{ 9}}, {{443},{ 9}}, {{123},{ 9}}, {{379},{ 9}},
{{251},{ 9}}, {{507},{ 9}}, {{ 7},{ 9}}, {{263},{ 9}}, {{135},{ 9}},
{{391},{ 9}}, {{ 71},{ 9}}, {{327},{ 9}}, {{199},{ 9}}, {{455},{ 9}},
{{ 39},{ 9}}, {{295},{ 9}}, {{167},{ 9}}, {{423},{ 9}}, {{103},{ 9}},
{{359},{ 9}}, {{231},{ 9}}, {{487},{ 9}}, {{ 23},{ 9}}, {{279},{ 9}},
{{151},{ 9}}, {{407},{ 9}}, {{ 87},{ 9}}, {{343},{ 9}}, {{215},{ 9}},
{{471},{ 9}}, {{ 55},{ 9}}, {{311},{ 9}}, {{183},{ 9}}, {{439},{ 9}},
{{119},{ 9}}, {{375},{ 9}}, {{247},{ 9}}, {{503},{ 9}}, {{ 15},{ 9}},
{{271},{ 9}}, {{143},{ 9}}, {{399},{ 9}}, {{ 79},{ 9}}, {{335},{ 9}},
{{207},{ 9}}, {{463},{ 9}}, {{ 47},{ 9}}, {{303},{ 9}}, {{175},{ 9}},
{{431},{ 9}}, {{111},{ 9}}, {{367},{ 9}}, {{239},{ 9}}, {{495},{ 9}},
{{ 31},{ 9}}, {{287},{ 9}}, {{159},{ 9}}, {{415},{ 9}}, {{ 95},{ 9}},
{{351},{ 9}}, {{223},{ 9}}, {{479},{ 9}}, {{ 63},{ 9}}, {{319},{ 9}},
{{191},{ 9}}, {{447},{ 9}}, {{127},{ 9}}, {{383},{ 9}}, {{255},{ 9}},
{{511},{ 9}}, {{ 0},{ 7}}, {{ 64},{ 7}}, {{ 32},{ 7}}, {{ 96},{ 7}},
{{ 16},{ 7}}, {{ 80},{ 7}}, {{ 48},{ 7}}, {{112},{ 7}}, {{ 8},{ 7}},
{{ 72},{ 7}}, {{ 40},{ 7}}, {{104},{ 7}}, {{ 24},{ 7}}, {{ 88},{ 7}},
{{ 56},{ 7}}, {{120},{ 7}}, {{ 4},{ 7}}, {{ 68},{ 7}}, {{ 36},{ 7}},
{{100},{ 7}}, {{ 20},{ 7}}, {{ 84},{ 7}}, {{ 52},{ 7}}, {{116},{ 7}},
{{ 3},{ 8}}, {{131},{ 8}}, {{ 67},{ 8}}, {{195},{ 8}}, {{ 35},{ 8}},
{{163},{ 8}}, {{ 99},{ 8}}, {{227},{ 8}}
};
local const ct_data static_dtree[D_CODES] = {
{{ 0},{ 5}}, {{16},{ 5}}, {{ 8},{ 5}}, {{24},{ 5}}, {{ 4},{ 5}},
{{20},{ 5}}, {{12},{ 5}}, {{28},{ 5}}, {{ 2},{ 5}}, {{18},{ 5}},
{{10},{ 5}}, {{26},{ 5}}, {{ 6},{ 5}}, {{22},{ 5}}, {{14},{ 5}},
{{30},{ 5}}, {{ 1},{ 5}}, {{17},{ 5}}, {{ 9},{ 5}}, {{25},{ 5}},
{{ 5},{ 5}}, {{21},{ 5}}, {{13},{ 5}}, {{29},{ 5}}, {{ 3},{ 5}},
{{19},{ 5}}, {{11},{ 5}}, {{27},{ 5}}, {{ 7},{ 5}}, {{23},{ 5}}
};
local const uch dist_code[DIST_CODE_LEN] = {
0, 1, 2, 3, 4, 4, 5, 5, 6, 6, 6, 6, 7, 7, 7, 7, 8, 8, 8, 8,
8, 8, 8, 8, 9, 9, 9, 9, 9, 9, 9, 9, 10, 10, 10, 10, 10, 10, 10, 10,
10, 10, 10, 10, 10, 10, 10, 10, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11,
11, 11, 11, 11, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12,
12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 13, 13, 13, 13,
13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13,
13, 13, 13, 13, 13, 13, 13, 13, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14,
14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14,
14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14,
14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 15, 15, 15, 15, 15, 15, 15, 15,
15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15,
15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15,
15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 0, 0, 16, 17,
18, 18, 19, 19, 20, 20, 20, 20, 21, 21, 21, 21, 22, 22, 22, 22, 22, 22, 22, 22,
23, 23, 23, 23, 23, 23, 23, 23, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24,
24, 24, 24, 24, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25,
26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26,
26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 27, 27, 27, 27, 27, 27, 27, 27,
27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27,
27, 27, 27, 27, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28,
28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28,
28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28,
28, 28, 28, 28, 28, 28, 28, 28, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29,
29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29,
29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29,
29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29
};
local const uch length_code[MAX_MATCH-MIN_MATCH+1]= {
0, 1, 2, 3, 4, 5, 6, 7, 8, 8, 9, 9, 10, 10, 11, 11, 12, 12, 12, 12,
13, 13, 13, 13, 14, 14, 14, 14, 15, 15, 15, 15, 16, 16, 16, 16, 16, 16, 16, 16,
17, 17, 17, 17, 17, 17, 17, 17, 18, 18, 18, 18, 18, 18, 18, 18, 19, 19, 19, 19,
19, 19, 19, 19, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20,
21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 22, 22, 22, 22,
22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 23, 23, 23, 23, 23, 23, 23, 23,
23, 23, 23, 23, 23, 23, 23, 23, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24,
24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24,
25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25,
25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 26, 26, 26, 26, 26, 26, 26, 26,
26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26,
26, 26, 26, 26, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27,
27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 28
};
local const int base_length[LENGTH_CODES] = {
0, 1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 16, 20, 24, 28, 32, 40, 48, 56,
64, 80, 96, 112, 128, 160, 192, 224, 0
};
local const int base_dist[D_CODES] = {
0, 1, 2, 3, 4, 6, 8, 12, 16, 24,
32, 48, 64, 96, 128, 192, 256, 384, 512, 768,
1024, 1536, 2048, 3072, 4096, 6144, 8192, 12288, 16384, 24576
};

3
zconf.h
View File

@ -186,7 +186,8 @@ typedef uLong FAR uLongf;
#endif
#ifdef HAVE_UNISTD_H
# include <unistd.h> /* for SEEK_* and off_t */
# include <sys/types.h> /* for off_t */
# include <unistd.h> /* for SEEK_* and off_t */
# define z_off_t off_t
#endif
#ifndef SEEK_SET

8
zlib.3
View File

@ -1,4 +1,4 @@
.TH ZLIB 3 "20 January 1998"
.TH ZLIB 3 "26 January 1998"
.SH NAME
zlib \- compression/decompression library
.SH SYNOPSIS
@ -9,7 +9,7 @@ for full descripton]
The
.I zlib
library is a general purpose data compression library.
The code is reentrant (thread safe).
The code is thread safe.
It provides in-memory compression and decompression functions,
including integrity checks of the uncompressed data.
This version of the library supports only one compression method (deflation)
@ -66,7 +66,7 @@ zlib@quest.jpl.nasa.gov
or, if this fails, to the author addresses given below.
The zlib home page is:
.IP
http://www.cdrom.com/infozip/zlib/
http://www.cdrom.com/pub/infozip/zlib/
.LP
The data format used by the zlib library is described by RFC
(Request for Comments) 1950 to 1952 in the files:
@ -81,7 +81,7 @@ These documents are also available in other formats from:
.IP
ftp://ftp.uu.net/graphics/png/documents/zlib/zdoc-index.html
.SH AUTHORS
Version 1.0.7.
Version 1.0.8.
Copyright (C) 1995-1998 Jean-loup Gailly (jloup@gzip.org)
and Mark Adler (madler@alumni.caltech.edu).
.LP

25
zlib.h
View File

@ -1,5 +1,5 @@
/* zlib.h -- interface of the 'zlib' general purpose compression library
version 1.0.7, Jan 20th, 1998
version 1.0.8, Jan 27th, 1998
Copyright (C) 1995-1998 Jean-loup Gailly and Mark Adler
@ -37,7 +37,7 @@ extern "C" {
#include "zconf.h"
#define ZLIB_VERSION "1.0.7"
#define ZLIB_VERSION "1.0.8"
/*
The 'zlib' compression library provides in-memory compression and
@ -614,6 +614,21 @@ extern int EXPORT compress OF((Bytef *dest, uLongf *destLen,
buffer.
*/
extern int EXPORT compress2 OF((Bytef *dest, uLongf *destLen,
const Bytef *source, uLong sourceLen,
int level));
/*
Compresses the source buffer into the destination buffer. The level
parameter has the same meaning as in deflateInit. sourceLen is the byte
length of the source buffer. Upon entry, destLen is the total size of the
destination buffer, which must be at least 0.1% larger than sourceLen plus
12 bytes. Upon exit, destLen is the actual size of the compressed buffer.
compress2 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,
Z_STREAM_ERROR if the level parameter is invalid.
*/
extern int EXPORT uncompress OF((Bytef *dest, uLongf *destLen,
const Bytef *source, uLong sourceLen));
/*
@ -842,9 +857,9 @@ extern int EXPORT inflateInit2_ OF((z_streamp strm, int windowBits,
struct internal_state {int dummy;}; /* hack for buggy compilers */
#endif
extern const char * EXPORT zError OF((int err));
extern int EXPORT inflateSyncPoint OF((z_streamp z));
extern uLongf * EXPORT get_crc_table OF((void));
extern const char * EXPORT zError OF((int err));
extern int EXPORT inflateSyncPoint OF((z_streamp z));
extern const uLongf * EXPORT get_crc_table OF((void));
#ifdef __cplusplus
}

1
ztest28975.c Normal file
View File

@ -0,0 +1 @@
int hello() {return 0;}

2
zutil.c
View File

@ -5,8 +5,6 @@
/* @(#) $Id$ */
#include <stdio.h>
#include "zutil.h"
struct internal_state {int dummy;}; /* for buggy compilers */

10
zutil.h
View File

@ -110,8 +110,16 @@ extern const char *z_errmsg[10]; /* indexed by 2-zlib_error */
# define OS_CODE 0x05
#endif
#ifdef MACOS
#if defined(MACOS) || defined(TARGET_OS_MAC)
# define OS_CODE 0x07
# ifndef fdopen
# define fdopen(fd,mode) NULL /* No fdopen() */
# endif
#endif
#if defined(__MWERKS__) && !defined(fdopen)
# if __dest_os != __be_os && __dest_os != __win32_os
# define fdopen(fd,mode) NULL
# endif
#endif
#ifdef __50SERIES /* Prime/PRIMOS */