117651Speter/* zutil.h -- internal interface and configuration of the compression library 2313796Sdelphij * Copyright (C) 1995-2016 Jean-loup Gailly, Mark Adler 317651Speter * For conditions of distribution and use, see copyright notice in zlib.h 417651Speter */ 517651Speter 617651Speter/* WARNING: this file should *not* be used by applications. It is 717651Speter part of the implementation of the compression library and is 817651Speter subject to change. Applications should only use zlib.h. 917651Speter */ 1017651Speter 1133904Ssteve/* @(#) $Id$ */ 1217651Speter 13131377Stjr#ifndef ZUTIL_H 14131377Stjr#define ZUTIL_H 1517651Speter 16237248Sdelphij#ifdef HAVE_HIDDEN 17206905Sdelphij# define ZLIB_INTERNAL __attribute__((visibility ("hidden"))) 18206905Sdelphij#else 19206905Sdelphij# define ZLIB_INTERNAL 20206905Sdelphij#endif 21206905Sdelphij 2217651Speter#include "zlib.h" 2317651Speter 24230837Sdelphij#if defined(STDC) && !defined(Z_SOLO) 25205194Sdelphij# if !(defined(_WIN32_WCE) && defined(_MSC_VER)) 26157043Sdes# include <stddef.h> 27157043Sdes# endif 2817651Speter# include <string.h> 2917651Speter# include <stdlib.h> 3017651Speter#endif 31205194Sdelphij 32230837Sdelphij#ifdef Z_SOLO 33230837Sdelphij typedef long ptrdiff_t; /* guess -- will be caught if guess is wrong */ 34230837Sdelphij#endif 35230837Sdelphij 3617651Speter#ifndef local 3717651Speter# define local static 3817651Speter#endif 39313796Sdelphij/* since "static" is used to mean two completely different things in C, we 40313796Sdelphij define "local" for the non-static meaning of "static", for readability 41313796Sdelphij (compile with -Dlocal if your debugger can't find static symbols) */ 4217651Speter 4317651Spetertypedef unsigned char uch; 4417651Spetertypedef uch FAR uchf; 4517651Spetertypedef unsigned short ush; 4617651Spetertypedef ush FAR ushf; 4717651Spetertypedef unsigned long ulg; 4817651Speter 49250224Sdelphijextern z_const char * const z_errmsg[10]; /* indexed by 2-zlib_error */ 5017651Speter/* (size given to avoid silly warnings with Visual C++) */ 5117651Speter 5217651Speter#define ERR_MSG(err) z_errmsg[Z_NEED_DICT-(err)] 5317651Speter 5417651Speter#define ERR_RETURN(strm,err) \ 55250224Sdelphij return (strm->msg = ERR_MSG(err), (err)) 5617651Speter/* To be used only when the state is known to be valid */ 5717651Speter 5817651Speter /* common constants */ 5917651Speter 6017651Speter#ifndef DEF_WBITS 6117651Speter# define DEF_WBITS MAX_WBITS 6217651Speter#endif 6317651Speter/* default windowBits for decompression. MAX_WBITS is for compression only */ 6417651Speter 6517651Speter#if MAX_MEM_LEVEL >= 8 6617651Speter# define DEF_MEM_LEVEL 8 6717651Speter#else 6817651Speter# define DEF_MEM_LEVEL MAX_MEM_LEVEL 6917651Speter#endif 7017651Speter/* default memLevel */ 7117651Speter 7217651Speter#define STORED_BLOCK 0 7317651Speter#define STATIC_TREES 1 7417651Speter#define DYN_TREES 2 7517651Speter/* The three kinds of block type */ 7617651Speter 7717651Speter#define MIN_MATCH 3 7817651Speter#define MAX_MATCH 258 7917651Speter/* The minimum and maximum match lengths */ 8017651Speter 8117651Speter#define PRESET_DICT 0x20 /* preset dictionary flag in zlib header */ 8217651Speter 8317651Speter /* target dependencies */ 8417651Speter 85131377Stjr#if defined(MSDOS) || (defined(WINDOWS) && !defined(WIN32)) 8617651Speter# define OS_CODE 0x00 87230837Sdelphij# ifndef Z_SOLO 88230837Sdelphij# if defined(__TURBOC__) || defined(__BORLANDC__) 89230837Sdelphij# if (__STDC__ == 1) && (defined(__LARGE__) || defined(__COMPACT__)) 90230837Sdelphij /* Allow compilation with ANSI keywords only enabled */ 91230837Sdelphij void _Cdecl farfree( void *block ); 92230837Sdelphij void *_Cdecl farmalloc( unsigned long nbytes ); 93230837Sdelphij# else 94230837Sdelphij# include <alloc.h> 95230837Sdelphij# endif 96230837Sdelphij# else /* MSC or DJGPP */ 97230837Sdelphij# include <malloc.h> 9833904Ssteve# endif 9917651Speter# endif 10017651Speter#endif 10117651Speter 102131377Stjr#ifdef AMIGA 103313796Sdelphij# define OS_CODE 1 10417651Speter#endif 10517651Speter 10617651Speter#if defined(VAXC) || defined(VMS) 107313796Sdelphij# define OS_CODE 2 10833904Ssteve# define F_OPEN(name, mode) \ 10917651Speter fopen((name), (mode), "mbc=60", "ctx=stm", "rfm=fix", "mrs=512") 11017651Speter#endif 11117651Speter 112313796Sdelphij#ifdef __370__ 113313796Sdelphij# if __TARGET_LIB__ < 0x20000000 114313796Sdelphij# define OS_CODE 4 115313796Sdelphij# elif __TARGET_LIB__ < 0x40000000 116313796Sdelphij# define OS_CODE 11 117313796Sdelphij# else 118313796Sdelphij# define OS_CODE 8 119313796Sdelphij# endif 120313796Sdelphij#endif 121313796Sdelphij 12217651Speter#if defined(ATARI) || defined(atarist) 123313796Sdelphij# define OS_CODE 5 12417651Speter#endif 12517651Speter 126131377Stjr#ifdef OS2 127313796Sdelphij# define OS_CODE 6 128230837Sdelphij# if defined(M_I86) && !defined(Z_SOLO) 129205194Sdelphij# include <malloc.h> 130157043Sdes# endif 131131377Stjr#endif 132131377Stjr 13333904Ssteve#if defined(MACOS) || defined(TARGET_OS_MAC) 134313796Sdelphij# define OS_CODE 7 135230837Sdelphij# ifndef Z_SOLO 136230837Sdelphij# if defined(__MWERKS__) && __dest_os != __be_os && __dest_os != __win32_os 137230837Sdelphij# include <unix.h> /* for fdopen */ 138230837Sdelphij# else 139230837Sdelphij# ifndef fdopen 140230837Sdelphij# define fdopen(fd,mode) NULL /* No fdopen() */ 141230837Sdelphij# endif 14242468Speter# endif 14333904Ssteve# endif 14417651Speter#endif 14517651Speter 146313796Sdelphij#ifdef __acorn 147313796Sdelphij# define OS_CODE 13 14817651Speter#endif 14917651Speter 150313796Sdelphij#if defined(WIN32) && !defined(__CYGWIN__) 151313796Sdelphij# define OS_CODE 10 152131377Stjr#endif 153131377Stjr 154313796Sdelphij#ifdef _BEOS_ 155313796Sdelphij# define OS_CODE 16 156131377Stjr#endif 157131377Stjr 158313796Sdelphij#ifdef __TOS_OS400__ 159313796Sdelphij# define OS_CODE 18 160313796Sdelphij#endif 161313796Sdelphij 162313796Sdelphij#ifdef __APPLE__ 163313796Sdelphij# define OS_CODE 19 164313796Sdelphij#endif 165313796Sdelphij 16617651Speter#if defined(_BEOS_) || defined(RISCOS) 16717651Speter# define fdopen(fd,mode) NULL /* No fdopen() */ 16817651Speter#endif 16917651Speter 170205194Sdelphij#if (defined(_MSC_VER) && (_MSC_VER > 600)) && !defined __INTERIX 171131377Stjr# if defined(_WIN32_WCE) 172131377Stjr# define fdopen(fd,mode) NULL /* No fdopen() */ 173131377Stjr# ifndef _PTRDIFF_T_DEFINED 174131377Stjr typedef int ptrdiff_t; 175131377Stjr# define _PTRDIFF_T_DEFINED 176131377Stjr# endif 177131377Stjr# else 178131377Stjr# define fdopen(fd,type) _fdopen(fd,type) 179131377Stjr# endif 18033904Ssteve#endif 18133904Ssteve 182230837Sdelphij#if defined(__BORLANDC__) && !defined(MSDOS) 183205194Sdelphij #pragma warn -8004 184205194Sdelphij #pragma warn -8008 185205194Sdelphij #pragma warn -8066 186205194Sdelphij#endif 187205194Sdelphij 188205990Sdelphij/* provide prototypes for these when building zlib without LFS */ 189250224Sdelphij#if !defined(_WIN32) && \ 190250224Sdelphij (!defined(_LARGEFILE64_SOURCE) || _LFS64_LARGEFILE-0 == 0) 191206499Sdelphij ZEXTERN uLong ZEXPORT adler32_combine64 OF((uLong, uLong, z_off_t)); 192206499Sdelphij ZEXTERN uLong ZEXPORT crc32_combine64 OF((uLong, uLong, z_off_t)); 193205990Sdelphij#endif 194205990Sdelphij 195131377Stjr /* common defaults */ 19633904Ssteve 19717651Speter#ifndef OS_CODE 198313796Sdelphij# define OS_CODE 3 /* assume Unix */ 19917651Speter#endif 20017651Speter 20133904Ssteve#ifndef F_OPEN 20233904Ssteve# define F_OPEN(name, mode) fopen((name), (mode)) 20317651Speter#endif 20417651Speter 20517651Speter /* functions */ 20617651Speter 207230837Sdelphij#if defined(pyr) || defined(Z_SOLO) 20817651Speter# define NO_MEMCPY 20917651Speter#endif 21033904Ssteve#if defined(SMALL_MEDIUM) && !defined(_MSC_VER) && !defined(__SC__) 21117651Speter /* Use our own functions for small and medium model with MSC <= 5.0. 21217651Speter * You may have to use the same strategy for Borland C (untested). 21333904Ssteve * The __SC__ check is for Symantec. 21417651Speter */ 21517651Speter# define NO_MEMCPY 21617651Speter#endif 21717651Speter#if defined(STDC) && !defined(HAVE_MEMCPY) && !defined(NO_MEMCPY) 21817651Speter# define HAVE_MEMCPY 21917651Speter#endif 22017651Speter#ifdef HAVE_MEMCPY 22117651Speter# ifdef SMALL_MEDIUM /* MSDOS small or medium model */ 22217651Speter# define zmemcpy _fmemcpy 22317651Speter# define zmemcmp _fmemcmp 22417651Speter# define zmemzero(dest, len) _fmemset(dest, 0, len) 22517651Speter# else 22617651Speter# define zmemcpy memcpy 22717651Speter# define zmemcmp memcmp 22817651Speter# define zmemzero(dest, len) memset(dest, 0, len) 22917651Speter# endif 23017651Speter#else 231206905Sdelphij void ZLIB_INTERNAL zmemcpy OF((Bytef* dest, const Bytef* source, uInt len)); 232206905Sdelphij int ZLIB_INTERNAL zmemcmp OF((const Bytef* s1, const Bytef* s2, uInt len)); 233206905Sdelphij void ZLIB_INTERNAL zmemzero OF((Bytef* dest, uInt len)); 23417651Speter#endif 23517651Speter 23617651Speter/* Diagnostic functions */ 237313796Sdelphij#ifdef ZLIB_DEBUG 23817651Speter# include <stdio.h> 239206905Sdelphij extern int ZLIB_INTERNAL z_verbose; 240206905Sdelphij extern void ZLIB_INTERNAL z_error OF((char *m)); 24117651Speter# define Assert(cond,msg) {if(!(cond)) z_error(msg);} 24233904Ssteve# define Trace(x) {if (z_verbose>=0) fprintf x ;} 24333904Ssteve# define Tracev(x) {if (z_verbose>0) fprintf x ;} 24433904Ssteve# define Tracevv(x) {if (z_verbose>1) fprintf x ;} 24533904Ssteve# define Tracec(c,x) {if (z_verbose>0 && (c)) fprintf x ;} 24633904Ssteve# define Tracecv(c,x) {if (z_verbose>1 && (c)) fprintf x ;} 24717651Speter#else 24817651Speter# define Assert(cond,msg) 24917651Speter# define Trace(x) 25017651Speter# define Tracev(x) 25117651Speter# define Tracevv(x) 25217651Speter# define Tracec(c,x) 25317651Speter# define Tracecv(c,x) 25417651Speter#endif 25517651Speter 256230837Sdelphij#ifndef Z_SOLO 257230837Sdelphij voidpf ZLIB_INTERNAL zcalloc OF((voidpf opaque, unsigned items, 258230837Sdelphij unsigned size)); 259230837Sdelphij void ZLIB_INTERNAL zcfree OF((voidpf opaque, voidpf ptr)); 260230837Sdelphij#endif 26117651Speter 26217651Speter#define ZALLOC(strm, items, size) \ 26317651Speter (*((strm)->zalloc))((strm)->opaque, (items), (size)) 26417651Speter#define ZFREE(strm, addr) (*((strm)->zfree))((strm)->opaque, (voidpf)(addr)) 26517651Speter#define TRY_FREE(s, p) {if (p) ZFREE(s, p);} 26617651Speter 267237248Sdelphij/* Reverse the bytes in a 32-bit value */ 268237248Sdelphij#define ZSWAP32(q) ((((q) >> 24) & 0xff) + (((q) >> 8) & 0xff00) + \ 269237248Sdelphij (((q) & 0xff00) << 8) + (((q) & 0xff) << 24)) 270237248Sdelphij 271131377Stjr#endif /* ZUTIL_H */ 272