#if !defined(SRC_ZLIB_H2)

#define SRC_ZLIB_H2

#if defined(SRC_ZLIB_C2)

#if defined(_WIN32)

#endif // _WIN32

#if defined(__GNUC__)

# pragma GCC diagnostic ignored "-Wimplicit-function-declaration"

# pragma GCC diagnostic ignored "-Wunused-function"

#endif // __GNUC__

#if defined(__clang__)

# pragma clang diagnostic push

# pragma clang diagnostic ignored "-Wimplicit-function-declaration"

# pragma clang diagnostic ignored "-Wunused-function"

#endif // __clang__

#define DIST_CODE_LEN 512

#define NO_GZIP

#define ZEXTERN

// *INDENT-OFF*

/*jslint-disable*/

/*

shRollupFetch

{

"fetchList": [

{

"comment": true,

"sh": "cat .zlib-1.3.1/LICENSE",

"url": "https://github.com/madler/zlib/blob/v1.3.1/LICENSE"

},

{

"sh": "cat .zlib-1.3.1/zconf.h",

"url": "https://github.com/madler/zlib/blob/v1.3.1/zconf.h"

},

{

"sh": "cat .zlib-1.3.1/zlib.h",

"url": "https://github.com/madler/zlib/blob/v1.3.1/zlib.h"

},

{

"sh": "cat .zlib-1.3.1/zutil.h",

"url": "https://github.com/madler/zlib/blob/v1.3.1/zutil.h"

},

{

"sh": "cat .zlib-1.3.1/adler32.c",

"url": "https://github.com/madler/zlib/blob/v1.3.1/adler32.c"

},

{

"sh": "cat .zlib-1.3.1/deflate.h",

"url": "https://github.com/madler/zlib/blob/v1.3.1/deflate.h"

},

{

"sh": "cat .zlib-1.3.1/deflate.c",

"url": "https://github.com/madler/zlib/blob/v1.3.1/deflate.c"

},

{

"sh": "cat .zlib-1.3.1/inftrees.h",

"url": "https://github.com/madler/zlib/blob/v1.3.1/inftrees.h"

},

{

"sh": "cat .zlib-1.3.1/inflate.h",

"url": "https://github.com/madler/zlib/blob/v1.3.1/inflate.h"

},

{

"sh": "cat .zlib-1.3.1/inffast.h",

"url": "https://github.com/madler/zlib/blob/v1.3.1/inffast.h"

},

{

"sh": "cat .zlib-1.3.1/inffixed.h",

"url": "https://github.com/madler/zlib/blob/v1.3.1/inffixed.h"

},

{

"sh": "cat .zlib-1.3.1/inffast.c",

"url": "https://github.com/madler/zlib/blob/v1.3.1/inffast.c"

},

{

"sh": "cat .zlib-1.3.1/inflate.c",

"url": "https://github.com/madler/zlib/blob/v1.3.1/inflate.c"

},

{

"sh": "cat .zlib-1.3.1/inftrees.c",

"url": "https://github.com/madler/zlib/blob/v1.3.1/inftrees.c"

},

{

"sh": "cat .zlib-1.3.1/trees.h",

"url": "https://github.com/madler/zlib/blob/v1.3.1/trees.h"

},

{

"sh": "cat .zlib-1.3.1/trees.c",

"url": "https://github.com/madler/zlib/blob/v1.3.1/trees.c"

},

{

"sh": "cat .zlib-1.3.1/gzguts.h",

"url": "https://github.com/madler/zlib/blob/v1.3.1/gzguts.h"

},

{

"sh": "cat .zlib-1.3.1/zutil.c",

"url": "https://github.com/madler/zlib/blob/v1.3.1/zutil.c"

},

{

"sh": "cat .zlib-1.3.1/compress.c",

"url": "https://github.com/madler/zlib/blob/v1.3.1/compress.c"

},

{

"sh": "cat .zlib-1.3.1/uncompr.c",

"url": "https://github.com/madler/zlib/blob/v1.3.1/uncompr.c"

},

{

"sh": "cat .zlib-1.3.1/gzclose.c",

"url": "https://github.com/madler/zlib/blob/v1.3.1/gzclose.c"

},

{

"sh": "cat .zlib-1.3.1/gzlib.c",

"url": "https://github.com/madler/zlib/blob/v1.3.1/gzlib.c"

},

{

"sh": "cat .zlib-1.3.1/gzread.c",

"url": "https://github.com/madler/zlib/blob/v1.3.1/gzread.c"

},

{

"sh": "cat .zlib-1.3.1/gzwrite.c",

"url": "https://github.com/madler/zlib/blob/v1.3.1/gzwrite.c"

}

],

"replaceList": [

{

"aa": "^ *?\\w.*? ZEXPORT .*?\\(",

"bb": "// hack-zlib - optimization - static\nstatic $&",

"flags": "gm",

"substr": ""

},

{

"aa": "^# *?include \"(?:zconf|zlib|zutil|crc32|deflate|inftrees|inflate|inffast|inffixed|trees|gzguts)\\.h\"",

"bb": "// hack-zlib - inline header\n// $&",

"flags": "gm",

"substr": ""

},

{

"aa": "^static (.*?\\bZEXPORT (?:compress|uncompress))",

"bb": "// hack-zlib - export\n$1",

"flags": "gm",

"substr": ""

}

]

}

*/

/*

repo https://github.com/madler/zlib/tree/v1.3.1

committed 2024-01-22T18:14:31Z

*/

/*

file https://github.com/madler/zlib/blob/v1.3.1/LICENSE

*/

/*

Copyright notice:

(C) 1995-2022 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

arising from the use of this software.

Permission is granted to anyone to use this software for any purpose,

including commercial applications, and to alter it and redistribute it

freely, subject to the following restrictions:

1. The origin of this software must not be misrepresented; you must not

claim that you wrote the original software. If you use this software

in a product, an acknowledgment in the product documentation would be

appreciated but is not required.

2. Altered source versions must be plainly marked as such, and must not be

misrepresented as being the original software.

3. This notice may not be removed or altered from any source distribution.

Jean-loup Gailly Mark Adler

jloup@gzip.org madler@alumni.caltech.edu

*/

/*

file https://github.com/madler/zlib/blob/v1.3.1/zconf.h

*/

/* zconf.h -- configuration of the zlib compression library

* Copyright (C) 1995-2024 Jean-loup Gailly, Mark Adler

* For conditions of distribution and use, see copyright notice in zlib.h

*/

/* @(#) $Id$ */

#ifndef ZCONF_H

#define ZCONF_H

/*

* If you *really* need a unique prefix for all types and library functions,

* compile with -DZ_PREFIX. The "standard" zlib should be compiled without it.

* Even better than compiling with -DZ_PREFIX would be to use configure to set

* 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 and init macros */

# define _dist_code z__dist_code

# define _length_code z__length_code

# define _tr_align z__tr_align

# define _tr_flush_bits z__tr_flush_bits

# define _tr_flush_block z__tr_flush_block

# define _tr_init z__tr_init

# define _tr_stored_block z__tr_stored_block

# define _tr_tally z__tr_tally

# define adler32 z_adler32

# define adler32_combine z_adler32_combine

# define adler32_combine64 z_adler32_combine64

# define adler32_z z_adler32_z

# 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

# define crc32_combine_gen z_crc32_combine_gen

# define crc32_combine_gen64 z_crc32_combine_gen64

# define crc32_combine_op z_crc32_combine_op

# define crc32_z z_crc32_z

# define deflate z_deflate

# define deflateBound z_deflateBound

# define deflateCopy z_deflateCopy

# define deflateEnd z_deflateEnd

# define deflateGetDictionary z_deflateGetDictionary

# define deflateInit z_deflateInit

# define deflateInit2 z_deflateInit2

# 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

# 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 gzflush z_gzflush

# define gzfread z_gzfread

# define gzfwrite z_gzfwrite

# 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

# ifdef _WIN32

# define gzopen_w z_gzopen_w

# endif

# 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 gzvprintf z_gzvprintf

# define gzwrite z_gzwrite

# endif

# define inflate z_inflate

# define inflateBack z_inflateBack

# define inflateBackEnd z_inflateBackEnd

# define inflateBackInit z_inflateBackInit

# define inflateBackInit_ z_inflateBackInit_

# define inflateCodesUsed z_inflateCodesUsed

# define inflateCopy z_inflateCopy

# define inflateEnd z_inflateEnd

# define inflateGetDictionary z_inflateGetDictionary

# define inflateGetHeader z_inflateGetHeader

# define inflateInit z_inflateInit

# define inflateInit2 z_inflateInit2

# define inflateInit2_ z_inflateInit2_

# define inflateInit_ z_inflateInit_

# define inflateMark z_inflateMark

# define inflatePrime z_inflatePrime

# define inflateReset z_inflateReset

# define inflateReset2 z_inflateReset2

# define inflateResetKeep z_inflateResetKeep

# define inflateSetDictionary z_inflateSetDictionary

# define inflateSync z_inflateSync

# define inflateSyncPoint z_inflateSyncPoint

# define inflateUndermine z_inflateUndermine

# define inflateValidate z_inflateValidate

# define inflate_copyright z_inflate_copyright

# define inflate_fast z_inflate_fast

# define inflate_table z_inflate_table

# ifndef Z_SOLO

# define uncompress z_uncompress

# define uncompress2 z_uncompress2

# endif

# define zError z_zError

# ifndef Z_SOLO

# define zcalloc z_zcalloc

# define zcfree z_zcfree

# endif

# define zlibCompileFlags z_zlibCompileFlags

# define zlibVersion z_zlibVersion

/* all zlib typedefs in zlib.h and zconf.h */

# define Byte z_Byte

# define Bytef z_Bytef

# define alloc_func z_alloc_func

# define charf z_charf

# define free_func z_free_func

# ifndef Z_SOLO

# define gzFile z_gzFile

# endif

# define gz_header z_gz_header

# define gz_headerp z_gz_headerp

# define in_func z_in_func

# define intf z_intf

# define out_func z_out_func

# define uInt z_uInt

# define uIntf z_uIntf

# define uLong z_uLong

# define uLongf z_uLongf

# define voidp z_voidp

# define voidpc z_voidpc

# define voidpf z_voidpf

/* all zlib structs in zlib.h and zconf.h */

# define gz_header_s z_gz_header_s

# define internal_state z_internal_state

#endif

#if defined(__MSDOS__) && !defined(MSDOS)

# define MSDOS

#endif

#if (defined(OS_2) || defined(__OS2__)) && !defined(OS2)

# define OS2

#endif

#if defined(_WINDOWS) && !defined(WINDOWS)

# define WINDOWS

#endif

#if defined(_WIN32) || defined(_WIN32_WCE) || defined(__WIN32__)

# ifndef WIN32

# define WIN32

# endif

#endif

#if (defined(MSDOS) || defined(OS2) || defined(WINDOWS)) && !defined(WIN32)

# if !defined(__GNUC__) && !defined(__FLAT__) && !defined(__386__)

# ifndef SYS16BIT

# define SYS16BIT

# endif

# endif

#endif

/*

* Compile with -DMAXSEG_64K if the alloc function cannot allocate more

* than 64k bytes at a time (needed on systems with 16-bit int).

*/

#ifdef SYS16BIT

# define MAXSEG_64K

#endif

#ifdef MSDOS

# define UNALIGNED_OK

#endif

#ifdef __STDC_VERSION__

# ifndef STDC

# define STDC

# endif

# if __STDC_VERSION__ >= 199901L

# ifndef STDC99

# define STDC99

# endif

# endif

#endif

#if !defined(STDC) && (defined(__STDC__) || defined(__cplusplus))

# define STDC

#endif

#if !defined(STDC) && (defined(__GNUC__) || defined(__BORLANDC__))

# define STDC

#endif

#if !defined(STDC) && (defined(MSDOS) || defined(WINDOWS) || defined(WIN32))

# define STDC

#endif

#if !defined(STDC) && (defined(OS2) || defined(__HOS_AIX__))

# define STDC

#endif

#if defined(__OS400__) && !defined(STDC) /* iSeries (formerly AS/400). */

# define STDC

#endif

#ifndef STDC

# ifndef const /* cannot use !defined(STDC) && !defined(const) on Mac */

# define const /* note: need a more gentle solution here */

# endif

#endif

#if defined(ZLIB_CONST) && !defined(z_const)

# define z_const const

#else

# define z_const

#endif

#ifdef Z_SOLO

# ifdef _WIN64

typedef unsigned long long z_size_t;

# else

typedef unsigned long z_size_t;

# endif

#else

# define z_longlong long long

# if defined(NO_SIZE_T)

typedef unsigned NO_SIZE_T z_size_t;

# elif defined(STDC)

# include <stddef.h>

typedef size_t z_size_t;

# else

typedef unsigned long z_size_t;

# endif

# undef z_longlong

#endif

/* Maximum value for memLevel in deflateInit2 */

#ifndef MAX_MEM_LEVEL

# ifdef MAXSEG_64K

# define MAX_MEM_LEVEL 8

# else

# define MAX_MEM_LEVEL 9

# endif

#endif

/* Maximum value for windowBits in deflateInit2 and inflateInit2.

* WARNING: reducing MAX_WBITS makes minigzip unable to extract .gz files

* created by gzip. (Files created by minigzip can still be extracted by

* gzip.)

*/

#ifndef MAX_WBITS

# define MAX_WBITS 15 /* 32K LZ77 window */

#endif

/* The memory requirements for deflate are (in bytes):

(1 << (windowBits+2)) + (1 << (memLevel+9))

that is: 128K for windowBits=15 + 128K for memLevel = 8 (default values)

plus a few kilobytes for small objects. For example, if you want to reduce

the default memory requirements from 256K to 128K, compile with

make CFLAGS="-O -DMAX_WBITS=14 -DMAX_MEM_LEVEL=7"

Of course this will generally degrade compression (there's no free lunch).

The memory requirements for inflate are (in bytes) 1 << windowBits

that is, 32K for windowBits=15 (default value) plus about 7 kilobytes

for small objects.

*/

/* Type declarations */

#ifndef OF /* function prototypes */

# ifdef STDC

# define OF(args) args

# else

# define OF(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

* to define NO_MEMCPY in zutil.h. If you don't need the mixed model,

* just define FAR to be empty.

*/

#ifdef SYS16BIT

# if defined(M_I86SM) || defined(M_I86MM)

/* MSC small or medium model */

# define SMALL_MEDIUM

# ifdef _MSC_VER

# define FAR _far

# else

# define FAR far

# endif

# endif

# if (defined(__SMALL__) || defined(__MEDIUM__))

/* Turbo C small or medium model */

# define SMALL_MEDIUM

# ifdef __BORLANDC__

# define FAR _far

# else

# define FAR far

# endif

# endif

#endif

#if defined(WINDOWS) || defined(WIN32)

/* If building or using zlib as a DLL, define ZLIB_DLL.

* This is not mandatory, but it offers a little performance increase.

*/

# ifdef ZLIB_DLL

# if defined(WIN32) && (!defined(__BORLANDC__) || (__BORLANDC__ >= 0x500))

# ifdef ZLIB_INTERNAL

# define ZEXTERN extern __declspec(dllexport)

# else

# define ZEXTERN extern __declspec(dllimport)

# endif

# endif

# endif /* ZLIB_DLL */

/* If building or using zlib with the WINAPI/WINAPIV calling convention,

* define ZLIB_WINAPI.

* Caution: the standard ZLIB1.DLL is NOT compiled using ZLIB_WINAPI.

*/

# ifdef ZLIB_WINAPI

# ifdef FAR

# undef FAR

# endif

# ifndef WIN32_LEAN_AND_MEAN

# define WIN32_LEAN_AND_MEAN

# endif

# include <windows.h>

/* No need for _export, use ZLIB.DEF instead. */

/* For complete Windows compatibility, use WINAPI, not __stdcall. */

# define ZEXPORT WINAPI

# ifdef WIN32

# define ZEXPORTVA WINAPIV

# else

# define ZEXPORTVA FAR CDECL

# endif

# endif

#endif

#if defined (__BEOS__)

# ifdef ZLIB_DLL

# ifdef ZLIB_INTERNAL

# define ZEXPORT __declspec(dllexport)

# define ZEXPORTVA __declspec(dllexport)

# else

# define ZEXPORT __declspec(dllimport)

# define ZEXPORTVA __declspec(dllimport)

# endif

# endif

#endif

#ifndef ZEXTERN

# define ZEXTERN extern

#endif

#ifndef ZEXPORT

# define ZEXPORT

#endif

#ifndef ZEXPORTVA

# define ZEXPORTVA

#endif

#ifndef FAR

# define FAR

#endif

#if !defined(__MACTYPES__)

typedef unsigned char Byte; /* 8 bits */

#endif

typedef unsigned int uInt; /* 16 bits or more */

typedef unsigned long uLong; /* 32 bits or more */

#ifdef SMALL_MEDIUM

/* Borland C/C++ and some old MSC versions ignore FAR inside typedef */

# define Bytef Byte FAR

#else

typedef Byte FAR Bytef;

#endif

typedef char FAR charf;

typedef int FAR intf;

typedef uInt FAR uIntf;

typedef uLong FAR uLongf;

#ifdef STDC

typedef void const *voidpc;

typedef void FAR *voidpf;

typedef void *voidp;

#else

typedef Byte const *voidpc;

typedef Byte FAR *voidpf;

typedef Byte *voidp;

#endif

#if !defined(Z_U4) && !defined(Z_SOLO) && defined(STDC)

# include <limits.h>

# if (UINT_MAX == 0xffffffffUL)

# define Z_U4 unsigned

# elif (ULONG_MAX == 0xffffffffUL)

# define Z_U4 unsigned long

# elif (USHRT_MAX == 0xffffffffUL)

# define Z_U4 unsigned short

# endif

#endif

#ifdef Z_U4

typedef Z_U4 z_crc_t;

#else

typedef unsigned long z_crc_t;

#endif

#ifdef HAVE_UNISTD_H /* may be set to #if 1 by ./configure */

# 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

# ifndef Z_SOLO

# include <sys/types.h> /* for off_t */

# endif

#endif

#if defined(STDC) || defined(Z_HAVE_STDARG_H)

# ifndef Z_SOLO

# include <stdarg.h> /* for va_list */

# endif

#endif

#ifdef _WIN32

# ifndef Z_SOLO

# include <stddef.h> /* for wchar_t */

# endif

#endif

/* a little trick to accommodate both "#define _LARGEFILE64_SOURCE" and

* "#define _LARGEFILE64_SOURCE 1" as requesting 64-bit operations, (even

* though the former does not conform to the LFS document), but considering

* both "#undef _LARGEFILE64_SOURCE" and "#define _LARGEFILE64_SOURCE 0" as

* equivalently requesting no 64-bit operations

*/

#if defined(_LARGEFILE64_SOURCE) && -_LARGEFILE64_SOURCE - -1 == 1

# undef _LARGEFILE64_SOURCE

#endif

#ifndef Z_HAVE_UNISTD_H

# ifdef __WATCOMC__

# define Z_HAVE_UNISTD_H

# endif

#endif

#ifndef Z_HAVE_UNISTD_H

# if defined(_LARGEFILE64_SOURCE) && !defined(_WIN32)

# define Z_HAVE_UNISTD_H

# endif

#endif

#ifndef Z_SOLO

# if defined(Z_HAVE_UNISTD_H)

# include <unistd.h> /* for SEEK_*, off_t, and _LFS64_LARGEFILE */

# ifdef VMS

# include <unixio.h> /* for off_t */

# endif

# ifndef z_off_t

# define z_off_t off_t

# endif

# endif

#endif

#if defined(_LFS64_LARGEFILE) && _LFS64_LARGEFILE-0

# define Z_LFS64

#endif

#if defined(_LARGEFILE64_SOURCE) && defined(Z_LFS64)

# define Z_LARGE64

#endif

#if defined(_FILE_OFFSET_BITS) && _FILE_OFFSET_BITS-0 == 64 && defined(Z_LFS64)

# define Z_WANT64

#endif

#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" */

#endif

#ifndef z_off_t

# define z_off_t long

#endif

#if !defined(_WIN32) && defined(Z_LARGE64)

# define z_off64_t off64_t

#else

# if defined(_WIN32) && !defined(__GNUC__)

# define z_off64_t __int64

# else

# define z_off64_t z_off_t

# endif

#endif

/* MVS linker does not support external names larger than 8 bytes */

#if defined(__MVS__)

#pragma map(deflateInit_,"DEIN")

#pragma map(deflateInit2_,"DEIN2")

#pragma map(deflateEnd,"DEEND")

#pragma map(deflateBound,"DEBND")

#pragma map(inflateInit_,"ININ")

#pragma map(inflateInit2_,"ININ2")

#pragma map(inflateEnd,"INEND")

#pragma map(inflateSync,"INSY")

#pragma map(inflateSetDictionary,"INSEDI")

#pragma map(compressBound,"CMBND")

#pragma map(inflate_table,"INTABL")

#pragma map(inflate_fast,"INFA")

#pragma map(inflate_copyright,"INCOPY")

#endif

#endif /* ZCONF_H */

/*

file https://github.com/madler/zlib/blob/v1.3.1/zlib.h

*/

/* zlib.h -- interface of the 'zlib' general purpose compression library

version 1.3.1, January 22nd, 2024

Copyright (C) 1995-2024 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

arising from the use of this software.

Permission is granted to anyone to use this software for any purpose,

including commercial applications, and to alter it and redistribute it

freely, subject to the following restrictions:

1. The origin of this software must not be misrepresented; you must not

claim that you wrote the original software. If you use this software

in a product, an acknowledgment in the product documentation would be

appreciated but is not required.

2. Altered source versions must be plainly marked as such, and must not be

misrepresented as being the original software.

3. This notice may not be removed or altered from any source distribution.

Jean-loup Gailly Mark Adler

jloup@gzip.org madler@alumni.caltech.edu

The data format used by the zlib library is described by RFCs (Request for

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

#define ZLIB_H

// hack-zlib - inline header

// #include "zconf.h"

#ifdef __cplusplus

extern "C" {

#endif

#define ZLIB_VERSION "1.3.1"

#define ZLIB_VERNUM 0x1310

#define ZLIB_VER_MAJOR 1

#define ZLIB_VER_MINOR 3

#define ZLIB_VER_REVISION 1

#define ZLIB_VER_SUBREVISION 0

/*

The 'zlib' compression library 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)

but other algorithms will be added later and will have the same stream

interface.

Compression can be done in a single step if the buffers are large enough,

or can be done by repeated calls of the compression function. In the latter

case, the application must provide more input and/or consume the output

(providing more output space) before each call.

The compressed data format used by default by the in-memory functions is

the zlib format, which is a zlib wrapper documented in RFC 1950, wrapped

around a deflate stream, which is itself documented in RFC 1951.

The library also supports reading and writing files in gzip (.gz) format

with an interface similar to that of stdio using the functions that start

with "gz". The gzip format is different from the zlib format. gzip is a

gzip wrapper, documented in RFC 1952, wrapped around a deflate stream.

This library can optionally read and write gzip and raw deflate streams in

memory as well.

The zlib format was designed to be compact and fast for use in memory

and on communications channels. The gzip format was designed for single-

file compression on file systems, has a larger header than zlib to maintain

directory information, and uses a different, slower check method than zlib.

The library does not install any signal handler. The decoder checks

the consistency of the compressed data, so the library should never crash

even in the case of corrupted input.

*/

typedef voidpf (*alloc_func)(voidpf opaque, uInt items, uInt size);

typedef void (*free_func)(voidpf opaque, voidpf address);

struct internal_state;

typedef struct z_stream_s {

z_const Bytef *next_in; /* next input byte */

uInt avail_in; /* number of bytes available at next_in */

uLong total_in; /* total number of input bytes read so far */

Bytef *next_out; /* next output byte will go here */

uInt avail_out; /* remaining free space at next_out */

uLong total_out; /* total number of bytes output so far */

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 */

free_func zfree; /* used to free the internal state */

voidpf opaque; /* private data object passed to zalloc and zfree */

int data_type; /* best guess about the data type: binary or text

for deflate, or the decoding state for inflate */

uLong adler; /* Adler-32 or CRC-32 value of the uncompressed data */

uLong reserved; /* reserved for future use */

} z_stream;

typedef z_stream FAR *z_streamp;

/*

gzip header information passed to and from zlib routines. See RFC 1952

for more details on the meanings of these fields.

*/

typedef struct gz_header_s {

int text; /* true if compressed data believed to be text */

uLong time; /* modification time */

int xflags; /* extra flags (not used when writing a gzip file) */

int os; /* operating system */

Bytef *extra; /* pointer to extra field or Z_NULL if none */

uInt extra_len; /* extra field length (valid if extra != Z_NULL) */

uInt extra_max; /* space at extra (only when reading header) */

Bytef *name; /* pointer to zero-terminated file name or Z_NULL */

uInt name_max; /* space at name (only when reading header) */

Bytef *comment; /* pointer to zero-terminated comment or Z_NULL */

uInt comm_max; /* space at comment (only when reading header) */

int hcrc; /* true if there was or will be a header crc */

int done; /* true when done reading gzip header (not used

when writing a gzip file) */

} gz_header;

typedef gz_header FAR *gz_headerp;

/*

The application must update next_in and avail_in when avail_in has dropped

to zero. It must update next_out and avail_out when avail_out has dropped

to zero. The application must initialize zalloc, zfree and opaque before

calling the init function. All other fields are set by the compression

library and must not be updated by the application.

The opaque value provided by the application will be passed as the first

parameter for calls of zalloc and zfree. This can be useful for custom

memory management. The compression library attaches no meaning to the

opaque value.

zalloc must return Z_NULL if there is not enough memory for the object.

If zlib is used in a multi-threaded application, zalloc and zfree must be

thread safe. In that case, zlib is thread-safe. When zalloc and zfree are

Z_NULL on entry to the initialization function, they are set to internal

routines that use the standard library functions malloc() and free().

On 16-bit systems, the functions zalloc and zfree must be able to allocate

exactly 65536 bytes, but will not be required to allocate more than this if

the symbol MAXSEG_64K is defined (see zconf.h). WARNING: On MSDOS, pointers

returned by zalloc for objects of exactly 65536 bytes *must* have their

offset normalized to zero. The default allocation function provided by this

library ensures this (see zutil.c). To reduce memory requirements and avoid

any allocation of 64K objects, at the expense of compression ratio, compile

the library with -DMAX_WBITS=14 (see zconf.h).

The fields total_in and total_out can be used for statistics or progress

reports. After compression, total_in holds the total size of the

uncompressed data and may be saved for use by the decompressor (particularly

if the decompressor wants to decompress everything in a single step).

*/

/* constants */

#define Z_NO_FLUSH 0

#define Z_PARTIAL_FLUSH 1

#define Z_SYNC_FLUSH 2

#define Z_FULL_FLUSH 3

#define Z_FINISH 4

#define Z_BLOCK 5

#define Z_TREES 6

/* Allowed flush values; see deflate() and inflate() below for details */

#define Z_OK 0

#define Z_STREAM_END 1

#define Z_NEED_DICT 2

#define Z_ERRNO (-1)

#define Z_STREAM_ERROR (-2)

#define Z_DATA_ERROR (-3)

#define Z_MEM_ERROR (-4)

#define Z_BUF_ERROR (-5)

#define Z_VERSION_ERROR (-6)

/* Return codes for the compression/decompression functions. Negative values

* are errors, positive values are used for special but normal events.

*/

#define Z_NO_COMPRESSION 0

#define Z_BEST_SPEED 1

#define Z_BEST_COMPRESSION 9

#define Z_DEFAULT_COMPRESSION (-1)

/* compression levels */

#define Z_FILTERED 1

#define Z_HUFFMAN_ONLY 2

#define Z_RLE 3

#define Z_FIXED 4

#define Z_DEFAULT_STRATEGY 0

/* compression strategy; see deflateInit2() below for details */

#define Z_BINARY 0

#define Z_TEXT 1

#define Z_ASCII Z_TEXT /* for compatibility with 1.2.2 and earlier */

#define Z_UNKNOWN 2

/* Possible values of the data_type field for deflate() */

#define Z_DEFLATED 8

/* The deflate compression method (the only one supported in this version) */

#define Z_NULL 0 /* for initializing zalloc, zfree, opaque */

#define zlib_version zlibVersion()

/* for compatibility with versions < 1.0.2 */

/* basic functions */

// hack-zlib - optimization - static

static ZEXTERN const char * ZEXPORT zlibVersion(void);

/* The application can compare zlibVersion and ZLIB_VERSION for consistency.

If the first character differs, the library code actually used is not

compatible with the zlib.h header file used by the application. This check

is automatically made by deflateInit and inflateInit.

*/

/*

// hack-zlib - optimization - static

static ZEXTERN int ZEXPORT deflateInit(z_streamp strm, int level);

Initializes the internal stream state for compression. The fields

zalloc, zfree and opaque must be initialized before by the caller. If

zalloc and zfree are set to Z_NULL, deflateInit updates them to use default

allocation functions. total_in, total_out, adler, and msg are initialized.

The compression level must be Z_DEFAULT_COMPRESSION, or between 0 and 9:

1 gives best speed, 9 gives best compression, 0 gives no compression at all

(the input data is simply copied a block at a time). Z_DEFAULT_COMPRESSION

requests a default compromise between speed and compression (currently

equivalent to level 6).

deflateInit returns Z_OK if success, Z_MEM_ERROR if there was not enough

memory, Z_STREAM_ERROR if level is not a valid compression level, or

Z_VERSION_ERROR if the zlib library version (zlib_version) is incompatible

with the version assumed by the caller (ZLIB_VERSION). msg is set to null

if there is no error message. deflateInit does not perform any compression:

this will be done by deflate().

*/

// hack-zlib - optimization - static

static ZEXTERN int ZEXPORT deflate(z_streamp strm, int flush);

/*

deflate compresses as much data as possible, and stops when the input

buffer becomes empty or the output buffer becomes full. It may introduce

some output latency (reading input without producing any output) except when

forced to flush.

The detailed semantics are as follows. deflate performs one or both of the