1/* 2 * Copyright 2007 Sun Microsystems, Inc. All rights reserved. 3 * Use is subject to license terms. 4 */ 5 6/* zutil.h -- internal interface and configuration of the compression library 7 * Copyright (C) 1995-2005 Jean-loup Gailly. 8 * For conditions of distribution and use, see copyright notice in zlib.h 9 */ 10 11/* WARNING: this file should *not* be used by applications. It is 12 part of the implementation of the compression library and is 13 subject to change. Applications should only use zlib.h. 14 */ 15 16#ifndef _ZUTIL_H 17#define _ZUTIL_H 18 19#pragma ident "%Z%%M% %I% %E% SMI" 20 21#define ZLIB_INTERNAL 22#include "zlib.h" 23 24#ifdef STDC 25# ifndef _WIN32_WCE 26# include <stddef.h> 27# endif 28# include <string.h> 29# include <stdlib.h> 30#endif 31#ifdef NO_ERRNO_H 32# ifdef _WIN32_WCE 33 /* The Microsoft C Run-Time Library for Windows CE doesn't have 34 * errno. We define it as a global variable to simplify porting. 35 * Its value is always 0 and should not be used. We rename it to 36 * avoid conflict with other libraries that use the same workaround. 37 */ 38# define errno z_errno 39# endif 40 extern int errno; 41#else 42# ifndef _WIN32_WCE 43# include <sys/errno.h> 44# endif 45#endif 46 47#ifndef local 48# define local static 49#endif 50/* compile with -Dlocal if your debugger can't find static symbols */ 51 52typedef unsigned char uch; 53typedef uch FAR uchf; 54typedef unsigned short ush; 55typedef ush FAR ushf; 56typedef unsigned long ulg; 57 58#define z_errmsg opensolaris_z_errmsg 59 60extern const char * const z_errmsg[10]; /* indexed by 2-zlib_error */ 61/* (size given to avoid silly warnings with Visual C++) */ 62 63#define ERR_MSG(err) z_errmsg[Z_NEED_DICT-(err)] 64 65#define ERR_RETURN(strm,err) \ 66 return (strm->msg = (char*)ERR_MSG(err), (err)) 67/* To be used only when the state is known to be valid */ 68 69 /* common constants */ 70 71#ifndef DEF_WBITS 72# define DEF_WBITS MAX_WBITS 73#endif 74/* default windowBits for decompression. MAX_WBITS is for compression only */ 75 76#if MAX_MEM_LEVEL >= 8 77# define DEF_MEM_LEVEL 8 78#else 79# define DEF_MEM_LEVEL MAX_MEM_LEVEL 80#endif 81/* default memLevel */ 82 83#define STORED_BLOCK 0 84#define STATIC_TREES 1 85#define DYN_TREES 2 86/* The three kinds of block type */ 87 88#define MIN_MATCH 3 89#define MAX_MATCH 258 90/* The minimum and maximum match lengths */ 91 92#define PRESET_DICT 0x20 /* preset dictionary flag in zlib header */ 93 94 /* target dependencies */ 95 96#if defined(MSDOS) || (defined(WINDOWS) && !defined(WIN32)) 97# define OS_CODE 0x00 98# if defined(__TURBOC__) || defined(__BORLANDC__) 99# if(__STDC__ == 1) && (defined(__LARGE__) || defined(__COMPACT__)) 100 /* Allow compilation with ANSI keywords only enabled */ 101 void _Cdecl farfree( void *block ); 102 void *_Cdecl farmalloc( unsigned long nbytes ); 103# else 104# include <alloc.h> 105# endif 106# else /* MSC or DJGPP */ 107# include <malloc.h> 108# endif 109#endif 110 111#ifdef AMIGA 112# define OS_CODE 0x01 113#endif 114 115#if defined(VAXC) || defined(VMS) 116# define OS_CODE 0x02 117# define F_OPEN(name, mode) \ 118 fopen((name), (mode), "mbc=60", "ctx=stm", "rfm=fix", "mrs=512") 119#endif 120 121#if defined(ATARI) || defined(atarist) 122# define OS_CODE 0x05 123#endif 124 125#ifdef OS2 126# define OS_CODE 0x06 127# ifdef M_I86 128 #include <malloc.h> 129# endif 130#endif 131 132#if defined(MACOS) || defined(TARGET_OS_MAC) 133# define OS_CODE 0x07 134# if defined(__MWERKS__) && __dest_os != __be_os && __dest_os != __win32_os 135# include <unix.h> /* for fdopen */ 136# else 137# ifndef fdopen 138# define fdopen(fd,mode) NULL /* No fdopen() */ 139# endif 140# endif 141#endif 142 143#ifdef TOPS20 144# define OS_CODE 0x0a 145#endif 146 147#ifdef WIN32 148# ifndef __CYGWIN__ /* Cygwin is Unix, not Win32 */ 149# define OS_CODE 0x0b 150# endif 151#endif 152 153#ifdef __50SERIES /* Prime/PRIMOS */ 154# define OS_CODE 0x0f 155#endif 156 157#if defined(_BEOS_) || defined(RISCOS) 158# define fdopen(fd,mode) NULL /* No fdopen() */ 159#endif 160 161#if (defined(_MSC_VER) && (_MSC_VER > 600)) 162# if defined(_WIN32_WCE) 163# define fdopen(fd,mode) NULL /* No fdopen() */ 164# ifndef _PTRDIFF_T_DEFINED 165 typedef int ptrdiff_t; 166# define _PTRDIFF_T_DEFINED 167# endif 168# else 169# define fdopen(fd,type) _fdopen(fd,type) 170# endif 171#endif 172 173 /* common defaults */ 174 175#ifndef OS_CODE 176# define OS_CODE 0x03 /* assume Unix */ 177#endif 178 179#ifndef F_OPEN 180# define F_OPEN(name, mode) fopen((name), (mode)) 181#endif 182 183 /* functions */ 184 185#if defined(STDC99) || (defined(__TURBOC__) && __TURBOC__ >= 0x550) 186# ifndef HAVE_VSNPRINTF 187# define HAVE_VSNPRINTF 188# endif 189#endif 190#if defined(__CYGWIN__) 191# ifndef HAVE_VSNPRINTF 192# define HAVE_VSNPRINTF 193# endif 194#endif 195#ifndef HAVE_VSNPRINTF 196# ifdef MSDOS 197 /* vsnprintf may exist on some MS-DOS compilers (DJGPP?), 198 but for now we just assume it doesn't. */ 199# define NO_vsnprintf 200# endif 201# ifdef __TURBOC__ 202# define NO_vsnprintf 203# endif 204# ifdef WIN32 205 /* In Win32, vsnprintf is available as the "non-ANSI" _vsnprintf. */ 206# if !defined(vsnprintf) && !defined(NO_vsnprintf) 207# define vsnprintf _vsnprintf 208# endif 209# endif 210# ifdef __SASC 211# define NO_vsnprintf 212# endif 213#endif 214#ifdef VMS 215# define NO_vsnprintf 216#endif 217 218#if defined(pyr) 219# define NO_MEMCPY 220#endif 221#if defined(SMALL_MEDIUM) && !defined(_MSC_VER) && !defined(__SC__) 222 /* Use our own functions for small and medium model with MSC <= 5.0. 223 * You may have to use the same strategy for Borland C (untested). 224 * The __SC__ check is for Symantec. 225 */ 226# define NO_MEMCPY 227#endif 228#if defined(STDC) && !defined(HAVE_MEMCPY) && !defined(NO_MEMCPY) 229# define HAVE_MEMCPY 230#endif 231#ifdef HAVE_MEMCPY 232# ifdef SMALL_MEDIUM /* MSDOS small or medium model */ 233# define zmemcpy _fmemcpy 234# define zmemcmp _fmemcmp 235# define zmemzero(dest, len) _fmemset(dest, 0, len) 236# else 237# define zmemcpy memcpy 238# define zmemcmp memcmp 239# define zmemzero(dest, len) memset(dest, 0, len) 240# endif 241#else 242 extern void zmemcpy OF((void* dest, const void* source, uInt len)); 243 extern int zmemcmp OF((const void* s1, const void* s2, uInt len)); 244 extern void zmemzero OF((void* dest, uInt len)); 245#endif 246 247/* Diagnostic functions */ 248#ifdef DEBUG 249# include <stdio.h> 250 extern int z_verbose; 251 extern void z_error OF((char *m)); 252# define Assert(cond,msg) {if(!(cond)) z_error(msg);} 253# define Trace(x) {if (z_verbose>=0) fprintf x ;} 254# define Tracev(x) {if (z_verbose>0) fprintf x ;} 255# define Tracevv(x) {if (z_verbose>1) fprintf x ;} 256# define Tracec(c,x) {if (z_verbose>0 && (c)) fprintf x ;} 257# define Tracecv(c,x) {if (z_verbose>1 && (c)) fprintf x ;} 258#else 259# define Assert(cond,msg) 260# define Trace(x) 261# define Tracev(x) 262# define Tracevv(x) 263# define Tracec(c,x) 264# define Tracecv(c,x) 265#endif 266 267 268voidpf zcalloc OF((voidpf opaque, unsigned items, unsigned size)); 269void zcfree OF((voidpf opaque, voidpf ptr)); 270 271#define ZALLOC(strm, items, size) \ 272 (*((strm)->zalloc))((strm)->opaque, (items), (size)) 273#define ZFREE(strm, addr) (*((strm)->zfree))((strm)->opaque, (voidpf)(addr)) 274#define TRY_FREE(s, p) {if (p) ZFREE(s, p);} 275 276#endif /* _ZUTIL_H */ 277