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products/sources/formale Sprachen/Java/Openjdk/src/java.base/share/native/libzip/zlib/ (Sun/Oracle ^©) Datei vom 13.11.2022 mit Größe 8 kB

Quelle zutil.h Sprache: C

/*
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation.  Oracle designates this
* particular file as subject to the "Classpath" exception as provided
* by Oracle in the LICENSE file that accompanied this code.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*/

/* zutil.h -- internal interface and configuration of the compression library
* Copyright (C) 1995-2022 Jean-loup Gailly, Mark Adler
* For conditions of distribution and use, see copyright notice in zlib.h
*/

/* WARNING: this file should *not* be used by applications. It is
   part of the implementation of the compression library and is
   subject to change. Applications should only use zlib.h.
*/

/* @(#) $Id$ */

#ifndef ZUTIL_H
#define ZUTIL_H

#ifdef HAVE_HIDDEN
#  define ZLIB_INTERNAL __attribute__((visibility ("hidden")))
#else
#  define ZLIB_INTERNAL
#endif

#include "zlib.h"

#if defined(STDC) && !defined(Z_SOLO)
#  if !(defined(_WIN32_WCE) && defined(_MSC_VER))
#    include <stddef.h>
#  endif
#  include <string.h>
#  include <stdlib.h>
#endif

#ifndef local
#  define local static
#endif
/* since "static" is used to mean two completely different things in C, we
   define "local" for the non-static meaning of "static", for readability
   (compile with -Dlocal if your debugger can't find static symbols) */

typedef unsigned char  uch;
typedef uch FAR uchf;
typedef unsigned short ush;
typedef ush FAR ushf;
typedef unsigned long  ulg;

#if !defined(Z_U8) && !defined(Z_SOLO) && defined(STDC)
#  include <limits.h>
#  if (ULONG_MAX == 0xffffffffffffffff)
#    define Z_U8 unsigned long
#  elif (ULLONG_MAX == 0xffffffffffffffff)
#    define Z_U8 unsigned long long
#  elif (UINT_MAX == 0xffffffffffffffff)
#    define Z_U8 unsigned
#  endif
#endif

extern z_const char * const z_errmsg[10]; /* indexed by 2-zlib_error */
/* (size given to avoid silly warnings with Visual C++) */

#define ERR_MSG(err) z_errmsg[Z_NEED_DICT-(err)]

#define ERR_RETURN(strm,err) \
  return (strm->msg = ERR_MSG(err), (err))
/* To be used only when the state is known to be valid */

        /* common constants */

#ifndef DEF_WBITS
#  define DEF_WBITS MAX_WBITS
#endif
/* default windowBits for decompression. MAX_WBITS is for compression only */

#if MAX_MEM_LEVEL >= 8
#  define DEF_MEM_LEVEL 8
#else
#  define DEF_MEM_LEVEL  MAX_MEM_LEVEL
#endif
/* default memLevel */

#define STORED_BLOCK 0
#define STATIC_TREES 1
#define DYN_TREES    2
/* The three kinds of block type */

#define MIN_MATCH  3
#define MAX_MATCH  258
/* The minimum and maximum match lengths */

#define PRESET_DICT 0x20 /* preset dictionary flag in zlib header */

        /* target dependencies */

#if defined(MSDOS) || (defined(WINDOWS) && !defined(WIN32))
#  define OS_CODE  0x00
#  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
#  endif
#endif

#ifdef AMIGA
#  define OS_CODE  1
#endif

#if defined(VAXC) || defined(VMS)
#  define OS_CODE  2
#  define F_OPEN(name, mode) \
     fopen((name), (mode), "mbc=60", "ctx=stm", "rfm=fix", "mrs=512")
#endif

#ifdef __370__
#  if __TARGET_LIB__ < 0x20000000
#    define OS_CODE 4
#  elif __TARGET_LIB__ < 0x40000000
#    define OS_CODE 11
#  else
#    define OS_CODE 8
#  endif
#endif

#if defined(ATARI) || defined(atarist)
#  define OS_CODE  5
#endif

#ifdef OS2
#  define OS_CODE  6
#  if defined(M_I86) && !defined(Z_SOLO)
#    include <malloc.h>
#  endif
#endif

#if defined(MACOS) || defined(TARGET_OS_MAC)
#  define OS_CODE  7
#  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

#ifdef __acorn
#  define OS_CODE 13
#endif

#if defined(WIN32) && !defined(__CYGWIN__)
#  define OS_CODE  10
#endif

#ifdef _BEOS_
#  define OS_CODE  16
#endif

#ifdef __TOS_OS400__
#  define OS_CODE 18
#endif

#ifdef __APPLE__
#  define OS_CODE 19
#endif

#if defined(_BEOS_) || defined(RISCOS)
#  define fdopen(fd,mode) NULL /* No fdopen() */
#endif

#if (defined(_MSC_VER) && (_MSC_VER > 600)) && !defined __INTERIX
#  if defined(_WIN32_WCE)
#    define fdopen(fd,mode) NULL /* No fdopen() */
#  else
#    define fdopen(fd,type)  _fdopen(fd,type)
#  endif
#endif

#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(_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));
    ZEXTERN uLong ZEXPORT crc32_combine_gen64 OF((z_off_t));
#endif

        /* common defaults */

#ifndef OS_CODE
#  define OS_CODE  3     /* assume Unix */
#endif

#ifndef F_OPEN
#  define F_OPEN(name, mode) fopen((name), (mode))
#endif

         /* functions */

#if defined(pyr) || defined(Z_SOLO)
#  define NO_MEMCPY
#endif
#if defined(SMALL_MEDIUM) && !defined(_MSC_VER) && !defined(__SC__)
/* Use our own functions for small and medium model with MSC <= 5.0.
  * You may have to use the same strategy for Borland C (untested).
  * The __SC__ check is for Symantec.
  */
#  define NO_MEMCPY
#endif
#if defined(STDC) && !defined(HAVE_MEMCPY) && !defined(NO_MEMCPY)
#  define HAVE_MEMCPY
#endif
#ifdef HAVE_MEMCPY
#  ifdef SMALL_MEDIUM /* MSDOS small or medium model */
#    define zmemcpy _fmemcpy
#    define zmemcmp _fmemcmp
#    define zmemzero(dest, len) _fmemset(dest, 0, len)
#  else
#    define zmemcpy memcpy
#    define zmemcmp memcmp
#    define zmemzero(dest, len) memset(dest, 0, len)
#  endif
#else
   void ZLIB_INTERNAL zmemcpy OF((Bytef* dest, const Bytef* source, uInt len));
   int ZLIB_INTERNAL zmemcmp OF((const Bytef* s1, const Bytef* s2, uInt len));
   void ZLIB_INTERNAL zmemzero OF((Bytef* dest, uInt len));
#endif

/* Diagnostic functions */
#ifdef ZLIB_DEBUG
#  include <stdio.h>
   extern int ZLIB_INTERNAL z_verbose;
   extern void ZLIB_INTERNAL z_error OF((char *m));
#  define Assert(cond,msg) {if(!(cond)) z_error(msg);}
#  define Trace(x) {if (z_verbose>=0) fprintf x ;}
#  define Tracev(x) {if (z_verbose>0) fprintf x ;}
#  define Tracevv(x) {if (z_verbose>1) fprintf x ;}
#  define Tracec(c,x) {if (z_verbose>0 && (c)) fprintf x ;}
#  define Tracecv(c,x) {if (z_verbose>1 && (c)) fprintf x ;}
#else
#  define Assert(cond,msg)
#  define Trace(x)
#  define Tracev(x)
#  define Tracevv(x)
#  define Tracec(c,x)
#  define Tracecv(c,x)
#endif

#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))
#define ZFREE(strm, addr)  (*((strm)->zfree))((strm)->opaque, (voidpf)(addr))
#define TRY_FREE(s, p) {if (p) ZFREE(s, p);}

/* Reverse the bytes in a 32-bit value */
#define ZSWAP32(q) ((((q) >> 24) & 0xff) + (((q) >> 8) & 0xff00) + \
                    (((q) & 0xff00) << 8) + (((q) & 0xff) << 24))

#endif /* ZUTIL_H */

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