1210008Srdivacky/* zutil.h -- internal interface and configuration of the compression library 2210008Srdivacky * Copyright (C) 1995-2013 Jean-loup Gailly. 3210008Srdivacky * For conditions of distribution and use, see copyright notice in zlib.h 4210008Srdivacky */ 5210008Srdivacky 6210008Srdivacky/* WARNING: this file should *not* be used by applications. It is 7210008Srdivacky part of the implementation of the compression library and is 8210008Srdivacky subject to change. Applications should only use zlib.h. 9210008Srdivacky */ 10210008Srdivacky 11210008Srdivacky/* @(#) $Id$ */ 12210008Srdivacky 13210008Srdivacky#ifndef ZUTIL_H 14210008Srdivacky#define ZUTIL_H 15210008Srdivacky 16249423Sdim#ifdef HAVE_HIDDEN 17210008Srdivacky# define ZLIB_INTERNAL __attribute__((visibility ("hidden"))) 18210008Srdivacky#else 19249423Sdim# define ZLIB_INTERNAL 20249423Sdim#endif 21249423Sdim 22210008Srdivacky#include "zlib.h" 23210008Srdivacky 24210008Srdivacky#if defined(STDC) && !defined(Z_SOLO) 25210008Srdivacky# if !(defined(_WIN32_WCE) && defined(_MSC_VER)) 26210008Srdivacky# include <stddef.h> 27210008Srdivacky# endif 28210008Srdivacky# include <string.h> 29210008Srdivacky# include <stdlib.h> 30210008Srdivacky#endif 31210008Srdivacky 32218893Sdim#ifdef Z_SOLO 33218893Sdim typedef long ptrdiff_t; /* guess -- will be caught if guess is wrong */ 34210008Srdivacky#endif 35210008Srdivacky 36210008Srdivacky#ifndef local 37210008Srdivacky# define local static 38210008Srdivacky#endif 39210008Srdivacky/* compile with -Dlocal if your debugger can't find static symbols */ 40210008Srdivacky 41210008Srdivackytypedef unsigned char uch; 42210008Srdivackytypedef uch FAR uchf; 43234353Sdimtypedef unsigned short ush; 44210008Srdivackytypedef ush FAR ushf; 45210008Srdivackytypedef unsigned long ulg; 46210008Srdivacky 47210008Srdivackyextern z_const char * const z_errmsg[10]; /* indexed by 2-zlib_error */ 48221345Sdim/* (size given to avoid silly warnings with Visual C++) */ 49221345Sdim 50221345Sdim#define ERR_MSG(err) z_errmsg[Z_NEED_DICT-(err)] 51221345Sdim 52210008Srdivacky#define ERR_RETURN(strm,err) \ 53210008Srdivacky return (strm->msg = ERR_MSG(err), (err)) 54218893Sdim/* To be used only when the state is known to be valid */ 55218893Sdim 56218893Sdim /* common constants */ 57218893Sdim 58218893Sdim#ifndef DEF_WBITS 59218893Sdim# define DEF_WBITS MAX_WBITS 60221345Sdim#endif 61218893Sdim/* default windowBits for decompression. MAX_WBITS is for compression only */ 62218893Sdim 63218893Sdim#if MAX_MEM_LEVEL >= 8 64218893Sdim# define DEF_MEM_LEVEL 8 65239462Sdim#else 66221345Sdim# define DEF_MEM_LEVEL MAX_MEM_LEVEL 67218893Sdim#endif 68218893Sdim/* default memLevel */ 69218893Sdim 70210008Srdivacky#define STORED_BLOCK 0 71210008Srdivacky#define STATIC_TREES 1 72210008Srdivacky#define DYN_TREES 2 73210008Srdivacky/* The three kinds of block type */ 74210008Srdivacky 75210008Srdivacky#define MIN_MATCH 3 76239462Sdim#define MAX_MATCH 258 77239462Sdim/* The minimum and maximum match lengths */ 78239462Sdim 79239462Sdim#define PRESET_DICT 0x20 /* preset dictionary flag in zlib header */ 80239462Sdim 81239462Sdim /* target dependencies */ 82239462Sdim 83239462Sdim#if defined(MSDOS) || (defined(WINDOWS) && !defined(WIN32)) 84239462Sdim# define OS_CODE 0x00 85239462Sdim# ifndef Z_SOLO 86239462Sdim# if defined(__TURBOC__) || defined(__BORLANDC__) 87239462Sdim# if (__STDC__ == 1) && (defined(__LARGE__) || defined(__COMPACT__)) 88249423Sdim /* Allow compilation with ANSI keywords only enabled */ 89249423Sdim void _Cdecl farfree( void *block ); 90249423Sdim void *_Cdecl farmalloc( unsigned long nbytes ); 91249423Sdim# else 92249423Sdim# include <alloc.h> 93249423Sdim# endif 94249423Sdim# else /* MSC or DJGPP */ 95249423Sdim# include <malloc.h> 96249423Sdim# endif 97249423Sdim# endif 98249423Sdim#endif 99249423Sdim 100249423Sdim#ifdef AMIGA 101249423Sdim# define OS_CODE 0x01 102210008Srdivacky#endif 103210008Srdivacky 104234353Sdim#if defined(VAXC) || defined(VMS) 105210008Srdivacky# define OS_CODE 0x02 106210008Srdivacky# define F_OPEN(name, mode) \ 107218893Sdim fopen((name), (mode), "mbc=60", "ctx=stm", "rfm=fix", "mrs=512") 108218893Sdim#endif 109218893Sdim 110218893Sdim#if defined(ATARI) || defined(atarist) 111218893Sdim# define OS_CODE 0x05 112218893Sdim#endif 113234353Sdim 114234353Sdim#ifdef OS2 115210008Srdivacky# define OS_CODE 0x06 116210008Srdivacky# if defined(M_I86) && !defined(Z_SOLO) 117210008Srdivacky# include <malloc.h> 118210008Srdivacky# endif 119210008Srdivacky#endif 120210008Srdivacky 121210008Srdivacky#if defined(MACOS) || defined(TARGET_OS_MAC) 122210008Srdivacky# define OS_CODE 0x07 123234353Sdim# ifndef Z_SOLO 124210008Srdivacky# if defined(__MWERKS__) && __dest_os != __be_os && __dest_os != __win32_os 125210008Srdivacky# include <unix.h> /* for fdopen */ 126210008Srdivacky# else 127210008Srdivacky# ifndef fdopen 128210008Srdivacky# define fdopen(fd,mode) NULL /* No fdopen() */ 129210008Srdivacky# endif 130210008Srdivacky# endif 131218893Sdim# endif 132218893Sdim#endif 133210008Srdivacky 134210008Srdivacky#ifdef TOPS20 135210008Srdivacky# define OS_CODE 0x0a 136243830Sdim#endif 137251662Sdim 138218893Sdim#ifdef WIN32 139234353Sdim# ifndef __CYGWIN__ /* Cygwin is Unix, not Win32 */ 140210008Srdivacky# define OS_CODE 0x0b 141239462Sdim# endif 142210008Srdivacky#endif 143239462Sdim 144239462Sdim#ifdef __50SERIES /* Prime/PRIMOS */ 145210008Srdivacky# define OS_CODE 0x0f 146218893Sdim#endif 147218893Sdim 148218893Sdim#if defined(_BEOS_) || defined(RISCOS) 149221345Sdim# define fdopen(fd,mode) NULL /* No fdopen() */ 150218893Sdim#endif 151218893Sdim 152218893Sdim#if (defined(_MSC_VER) && (_MSC_VER > 600)) && !defined __INTERIX 153218893Sdim# if defined(_WIN32_WCE) 154218893Sdim# define fdopen(fd,mode) NULL /* No fdopen() */ 155218893Sdim# ifndef _PTRDIFF_T_DEFINED 156218893Sdim typedef int ptrdiff_t; 157218893Sdim# define _PTRDIFF_T_DEFINED 158263508Sdim# endif 159218893Sdim# else 160218893Sdim# define fdopen(fd,type) _fdopen(fd,type) 161218893Sdim# endif 162218893Sdim#endif 163218893Sdim 164218893Sdim#if defined(__BORLANDC__) && !defined(MSDOS) 165218893Sdim #pragma warn -8004 166218893Sdim #pragma warn -8008 167218893Sdim #pragma warn -8066 168218893Sdim#endif 169218893Sdim 170234353Sdim/* provide prototypes for these when building zlib without LFS */ 171221345Sdim#if !defined(_WIN32) && \ 172221345Sdim (!defined(_LARGEFILE64_SOURCE) || _LFS64_LARGEFILE-0 == 0) 173218893Sdim ZEXTERN uLong ZEXPORT adler32_combine64 OF((uLong, uLong, z_off_t)); 174218893Sdim ZEXTERN uLong ZEXPORT crc32_combine64 OF((uLong, uLong, z_off_t)); 175218893Sdim#endif 176239462Sdim 177234353Sdim /* common defaults */ 178234353Sdim 179234353Sdim#ifndef OS_CODE 180218893Sdim# define OS_CODE 0x03 /* assume Unix */ 181218893Sdim#endif 182218893Sdim 183223017Sdim#ifndef F_OPEN 184224145Sdim# define F_OPEN(name, mode) fopen((name), (mode)) 185226633Sdim#endif 186218893Sdim 187218893Sdim /* functions */ 188210008Srdivacky 189224145Sdim#if defined(pyr) || defined(Z_SOLO) 190224145Sdim# define NO_MEMCPY 191224145Sdim#endif 192210008Srdivacky#if defined(SMALL_MEDIUM) && !defined(_MSC_VER) && !defined(__SC__) 193210008Srdivacky /* Use our own functions for small and medium model with MSC <= 5.0. 194210008Srdivacky * You may have to use the same strategy for Borland C (untested). 195210008Srdivacky * The __SC__ check is for Symantec. 196210008Srdivacky */ 197210008Srdivacky# define NO_MEMCPY 198210008Srdivacky#endif 199210008Srdivacky#if defined(STDC) && !defined(HAVE_MEMCPY) && !defined(NO_MEMCPY) 200210008Srdivacky# define HAVE_MEMCPY 201210008Srdivacky#endif 202210008Srdivacky#ifdef HAVE_MEMCPY 203221345Sdim# ifdef SMALL_MEDIUM /* MSDOS small or medium model */ 204221345Sdim# define zmemcpy _fmemcpy 205221345Sdim# define zmemcmp _fmemcmp 206210008Srdivacky# define zmemzero(dest, len) _fmemset(dest, 0, len) 207210008Srdivacky# else 208210008Srdivacky# define zmemcpy memcpy 209210008Srdivacky# define zmemcmp memcmp 210210008Srdivacky# define zmemzero(dest, len) memset(dest, 0, len) 211210008Srdivacky# endif 212210008Srdivacky#else 213210008Srdivacky void ZLIB_INTERNAL zmemcpy OF((Bytef* dest, const Bytef* source, uInt len)); 214210008Srdivacky int ZLIB_INTERNAL zmemcmp OF((const Bytef* s1, const Bytef* s2, uInt len)); 215210008Srdivacky void ZLIB_INTERNAL zmemzero OF((Bytef* dest, uInt len)); 216210008Srdivacky#endif 217212904Sdim 218210008Srdivacky/* Diagnostic functions */ 219210008Srdivacky#ifdef DEBUG 220210008Srdivacky# include <stdio.h> 221212904Sdim extern int ZLIB_INTERNAL z_verbose; 222210008Srdivacky extern void ZLIB_INTERNAL z_error OF((char *m)); 223210008Srdivacky# define Assert(cond,msg) {if(!(cond)) z_error(msg);} 224218893Sdim# define Trace(x) {if (z_verbose>=0) fprintf x ;} 225218893Sdim# define Tracev(x) {if (z_verbose>0) fprintf x ;} 226218893Sdim# define Tracevv(x) {if (z_verbose>1) fprintf x ;} 227218893Sdim# define Tracec(c,x) {if (z_verbose>0 && (c)) fprintf x ;} 228218893Sdim# define Tracecv(c,x) {if (z_verbose>1 && (c)) fprintf x ;} 229218893Sdim#else 230218893Sdim# define Assert(cond,msg) 231218893Sdim# define Trace(x) 232218893Sdim# define Tracev(x) 233218893Sdim# define Tracevv(x) 234218893Sdim# define Tracec(c,x) 235218893Sdim# define Tracecv(c,x) 236218893Sdim#endif 237210008Srdivacky 238210008Srdivacky#ifndef Z_SOLO 239210008Srdivacky voidpf ZLIB_INTERNAL zcalloc OF((voidpf opaque, unsigned items, 240212904Sdim unsigned size)); 241212904Sdim void ZLIB_INTERNAL zcfree OF((voidpf opaque, voidpf ptr)); 242210008Srdivacky#endif 243210008Srdivacky 244210008Srdivacky#define ZALLOC(strm, items, size) \ 245210008Srdivacky (*((strm)->zalloc))((strm)->opaque, (items), (size)) 246210008Srdivacky#define ZFREE(strm, addr) (*((strm)->zfree))((strm)->opaque, (voidpf)(addr)) 247210008Srdivacky#define TRY_FREE(s, p) {if (p) ZFREE(s, p);} 248218893Sdim 249234353Sdim/* Reverse the bytes in a 32-bit value */ 250234353Sdim#define ZSWAP32(q) ((((q) >> 24) & 0xff) + (((q) >> 8) & 0xff00) + \ 251234353Sdim (((q) & 0xff00) << 8) + (((q) & 0xff) << 24)) 252234353Sdim 253218893Sdim#endif /* ZUTIL_H */ 254234353Sdim