/* zutil.h -- internal interface and configuration of the compression library * Copyright (C) 1995-2005 Jean-loup Gailly. * 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 #define ZLIB_INTERNAL#include "zlib.h" #ifdef STDC#  ifndef _WIN32_WCE#    include <stddef.h>#  endif#  include <string.h>#  include <stdlib.h>#endif#ifdef NO_ERRNO_H#   ifdef _WIN32_WCE      /* The Microsoft C Run-Time Library for Windows CE doesn't have       * errno.  We define it as a global variable to simplify porting.       * Its value is always 0 and should not be used.  We rename it to       * avoid conflict with other libraries that use the same workaround.       */#     define errno z_errno#   endif    extern int errno;#else#  ifndef _WIN32_WCE#    include <errno.h>#  endif#endif #ifndef local#  define local static#endif/* 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; extern 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 = (char*)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#  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 #ifdef AMIGA#  define OS_CODE  0x01#endif #if defined(VAXC) || defined(VMS)#  define OS_CODE  0x02#  define F_OPEN(name, mode) \     fopen((name), (mode), "mbc=60", "ctx=stm", "rfm=fix", "mrs=512")#endif #if defined(ATARI) || defined(atarist)#  define OS_CODE  0x05#endif #ifdef OS2#  define OS_CODE  0x06#  ifdef M_I86     #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() */#    endif#  endif#endif #ifdef TOPS20#  define OS_CODE  0x0a#endif #ifdef WIN32#  ifndef __CYGWIN__  /* Cygwin is Unix, not Win32 */#    define OS_CODE  0x0b#  endif#endif #ifdef __50SERIES /* Prime/PRIMOS */#  define OS_CODE  0x0f#endif #if defined(_BEOS_) || defined(RISCOS)#  define fdopen(fd,mode) NULL /* No fdopen() */#endif #if (defined(_MSC_VER) && (_MSC_VER > 600))#  if defined(_WIN32_WCE)#    define fdopen(fd,mode) NULL /* No fdopen() */#    ifndef _PTRDIFF_T_DEFINED       typedef int ptrdiff_t;#      define _PTRDIFF_T_DEFINED#    endif#  else#    define fdopen(fd,type)  _fdopen(fd,type)#  endif#endif         /* common defaults */ #ifndef OS_CODE#  define OS_CODE  0x03  /* assume Unix */#endif #ifndef F_OPEN#  define F_OPEN(name, mode) fopen((name), (mode))#endif          /* 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)#      define vsnprintf _vsnprintf#    endif#  endif#  ifdef __SASC#    define NO_vsnprintf#  endif#endif#ifdef VMS#  define NO_vsnprintf#endif #if defined(pyr)#  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   extern void zmemcpy  OF((Bytef* dest, const Bytef* source, uInt len));   extern int  zmemcmp  OF((const Bytef* s1, const Bytef* s2, uInt len));   extern void zmemzero OF((Bytef* dest, uInt len));#endif /* Diagnostic functions */#ifdef DEBUG#  include <stdio.h>   extern int z_verbose;   extern void 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  voidpf zcalloc OF((voidpf opaque, unsigned items, unsigned size));void   zcfree  OF((voidpf opaque, voidpf ptr)); #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);} #endif /* ZUTIL_H */