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