1204552Salfred/* zutil.h -- internal interface and configuration of the compression library 2204552Salfred * Copyright (C) 1995-1996 Jean-loup Gailly. 3204552Salfred * For conditions of distribution and use, see copyright notice in zlib.h 4204552Salfred */ 5204552Salfred 6204552Salfred/* WARNING: this file should *not* be used by applications. It is 7204552Salfred part of the implementation of the compression library and is 8204552Salfred subject to change. Applications should only use zlib.h. 9204552Salfred */ 10204552Salfred 11204552Salfred/* From: zutil.h,v 1.16 1996/07/24 13:41:13 me Exp $ */ 12204552Salfred/* $FreeBSD$ */ 13204552Salfred 14204552Salfred#ifndef _Z_UTIL_H 15204552Salfred#define _Z_UTIL_H 16204552Salfred 17204552Salfred#define ZEXPORT 18204552Salfred 19204552Salfred#ifdef _KERNEL 20204552Salfred#include <net/zlib.h> 21204552Salfred#else 22204552Salfred#include "zlib.h" 23204552Salfred#endif 24204552Salfred 25204552Salfred#ifdef _KERNEL 26204552Salfred/* Assume this is a *BSD or SVR4 kernel */ 27204552Salfred#include <sys/types.h> 28204552Salfred#include <sys/time.h> 29204552Salfred#include <sys/systm.h> 30204552Salfred#include <sys/module.h> 31204552Salfred#include <sys/errno.h> 32204552Salfred#include <sys/param.h> 33204552Salfred#include <sys/kernel.h> 34204552Salfred# define HAVE_MEMCPY 35204552Salfred# define memcpy(d, s, n) bcopy((s), (d), (n)) 36204552Salfred# define memset(d, v, n) bzero((d), (n)) 37204552Salfred# define memcmp bcmp 38204552Salfred 39204552Salfred#else 40204552Salfred#if defined(__KERNEL__) 41204552Salfred/* Assume this is a Linux kernel */ 42204552Salfred#include <linux/string.h> 43204552Salfred#define HAVE_MEMCPY 44204552Salfred 45204552Salfred#else /* not kernel */ 46204552Salfred 47204552Salfred#if defined(MSDOS)||defined(VMS)||defined(CRAY)||defined(WIN32)||defined(RISCOS) 48204552Salfred# include <stddef.h> 49204552Salfred# include <errno.h> 50204552Salfred#else 51204552Salfred extern int errno; 52204552Salfred#endif 53204552Salfred#ifdef STDC 54204552Salfred# include <string.h> 55204552Salfred# include <stdlib.h> 56204552Salfred#endif 57204552Salfred#endif /* __KERNEL__ */ 58204552Salfred#endif /* _KERNEL */ 59204552Salfred 60204552Salfred#ifndef local 61204552Salfred# define local static 62204552Salfred#endif 63204552Salfred/* compile with -Dlocal if your debugger can't find static symbols */ 64204552Salfred 65204552Salfredtypedef unsigned char uch; 66204552Salfredtypedef uch FAR uchf; 67204552Salfredtypedef unsigned short ush; 68204552Salfredtypedef ush FAR ushf; 69204552Salfredtypedef unsigned long ulg; 70204552Salfred 71204552Salfred#define ERR_MSG(err) z_errmsg[Z_NEED_DICT-(err)] 72204552Salfred 73204552Salfred#define ERR_RETURN(strm,err) \ 74204552Salfred return (strm->msg = (const char*)ERR_MSG(err), (err)) 75204552Salfred/* To be used only when the state is known to be valid */ 76204552Salfred 77204552Salfred /* common constants */ 78204552Salfred 79204552Salfred#ifndef DEF_WBITS 80204552Salfred# define DEF_WBITS MAX_WBITS 81204552Salfred#endif 82204552Salfred/* default windowBits for decompression. MAX_WBITS is for compression only */ 83204552Salfred 84204552Salfred#if MAX_MEM_LEVEL >= 8 85204552Salfred# define DEF_MEM_LEVEL 8 86204552Salfred#else 87204552Salfred# define DEF_MEM_LEVEL MAX_MEM_LEVEL 88204552Salfred#endif 89204552Salfred/* default memLevel */ 90204552Salfred 91204552Salfred#define STORED_BLOCK 0 92204552Salfred#define STATIC_TREES 1 93204552Salfred#define DYN_TREES 2 94204552Salfred/* The three kinds of block type */ 95204552Salfred 96204552Salfred#define MIN_MATCH 3 97204552Salfred#define MAX_MATCH 258 98204552Salfred/* The minimum and maximum match lengths */ 99204552Salfred 100204552Salfred#define PRESET_DICT 0x20 /* preset dictionary flag in zlib header */ 101204552Salfred 102204552Salfred /* target dependencies */ 103204552Salfred 104204552Salfred#ifdef MSDOS 105204552Salfred# define OS_CODE 0x00 106204552Salfred# ifdef __TURBOC__ 107204552Salfred# include <alloc.h> 108204552Salfred# else /* MSC or DJGPP */ 109204552Salfred# include <malloc.h> 110204552Salfred# endif 111204552Salfred#endif 112204552Salfred 113204552Salfred#ifdef OS2 114204552Salfred# define OS_CODE 0x06 115204552Salfred#endif 116204552Salfred 117204552Salfred#ifdef WIN32 /* Window 95 & Windows NT */ 118204552Salfred# define OS_CODE 0x0b 119204552Salfred#endif 120204552Salfred 121204552Salfred#if defined(VAXC) || defined(VMS) 122204552Salfred# define OS_CODE 0x02 123204552Salfred# define FOPEN(name, mode) \ 124204552Salfred fopen((name), (mode), "mbc=60", "ctx=stm", "rfm=fix", "mrs=512") 125204552Salfred#endif 126204552Salfred 127204552Salfred#ifdef AMIGA 128204552Salfred# define OS_CODE 0x01 129204552Salfred#endif 130204552Salfred 131204552Salfred#if defined(ATARI) || defined(atarist) 132204552Salfred# define OS_CODE 0x05 133204552Salfred#endif 134204552Salfred 135204552Salfred#ifdef MACOS 136204552Salfred# define OS_CODE 0x07 137204552Salfred#endif 138204552Salfred 139204552Salfred#ifdef __50SERIES /* Prime/PRIMOS */ 140204552Salfred# define OS_CODE 0x0F 141204552Salfred#endif 142204552Salfred 143204552Salfred#ifdef TOPS20 144204552Salfred# define OS_CODE 0x0a 145204552Salfred#endif 146204552Salfred 147204552Salfred#if defined(_BEOS_) || defined(RISCOS) 148204552Salfred# define fdopen(fd,mode) NULL /* No fdopen() */ 149204552Salfred#endif 150204552Salfred 151204552Salfred /* Common defaults */ 152204552Salfred 153204552Salfred#ifndef OS_CODE 154204552Salfred# define OS_CODE 0x03 /* assume Unix */ 155204552Salfred#endif 156204552Salfred 157204552Salfred#ifndef FOPEN 158204552Salfred# define FOPEN(name, mode) fopen((name), (mode)) 159204552Salfred#endif 160204552Salfred 161204552Salfred /* functions */ 162204552Salfred 163204552Salfred#ifdef HAVE_STRERROR 164204552Salfred extern char *strerror OF((int)); 165204552Salfred# define zstrerror(errnum) strerror(errnum) 166204552Salfred#else 167204552Salfred# define zstrerror(errnum) "" 168204552Salfred#endif 169204552Salfred 170204552Salfred#if defined(pyr) 171204552Salfred# define NO_MEMCPY 172204552Salfred#endif 173204552Salfred#if (defined(M_I86SM) || defined(M_I86MM)) && !defined(_MSC_VER) 174204552Salfred /* Use our own functions for small and medium model with MSC <= 5.0. 175204552Salfred * You may have to use the same strategy for Borland C (untested). 176204552Salfred */ 177204552Salfred# define NO_MEMCPY 178204552Salfred#endif 179204552Salfred#if defined(STDC) && !defined(HAVE_MEMCPY) && !defined(NO_MEMCPY) 180204552Salfred# define HAVE_MEMCPY 181204552Salfred#endif 182204552Salfred#ifdef HAVE_MEMCPY 183204552Salfred# ifdef SMALL_MEDIUM /* MSDOS small or medium model */ 184204552Salfred# define zmemcpy _fmemcpy 185204552Salfred# define zmemcmp _fmemcmp 186204552Salfred# define zmemzero(dest, len) _fmemset(dest, 0, len) 187204552Salfred# else 188204552Salfred# define zmemcpy memcpy 189204552Salfred# define zmemcmp memcmp 190204552Salfred# define zmemzero(dest, len) memset(dest, 0, len) 191204552Salfred# endif 192204552Salfred#else 193204552Salfred extern void zmemcpy OF((Bytef* dest, Bytef* source, uInt len)); 194204552Salfred extern int zmemcmp OF((Bytef* s1, Bytef* s2, uInt len)); 195204552Salfred extern void zmemzero OF((Bytef* dest, uInt len)); 196204552Salfred#endif 197204552Salfred 198204552Salfred/* Diagnostic functions */ 199204552Salfred#ifdef DEBUG_ZLIB 200204552Salfred# include <stdio.h> 201204552Salfred# ifndef verbose 202204552Salfred# define verbose 0 203204552Salfred# endif 204204552Salfred extern void z_error OF((char *m)); 205204552Salfred# define Assert(cond,msg) {if(!(cond)) z_error(msg);} 206204552Salfred# define Trace(x) fprintf x 207204552Salfred# define Tracev(x) {if (verbose) fprintf x ;} 208204552Salfred# define Tracevv(x) {if (verbose>1) fprintf x ;} 209204552Salfred# define Tracec(c,x) {if (verbose && (c)) fprintf x ;} 210204552Salfred# define Tracecv(c,x) {if (verbose>1 && (c)) fprintf x ;} 211204552Salfred#else 212204552Salfred# define Assert(cond,msg) 213204552Salfred# define Trace(x) 214204552Salfred# define Tracev(x) 215204552Salfred# define Tracevv(x) 216204552Salfred# define Tracec(c,x) 217204552Salfred# define Tracecv(c,x) 218204552Salfred#endif 219204552Salfred 220204552Salfred 221204552Salfredtypedef uLong (*check_func) OF((uLong check, const Bytef *buf, uInt len)); 222204552Salfred 223204552Salfredvoidpf zcalloc OF((voidpf opaque, unsigned items, unsigned size)); 224204552Salfredvoid zcfree OF((voidpf opaque, voidpf ptr)); 225204552Salfred 226204552Salfred#define ZALLOC(strm, items, size) \ 227204552Salfred (*((strm)->zalloc))((strm)->opaque, (items), (size)) 228204552Salfred#define ZFREE(strm, addr) (*((strm)->zfree))((strm)->opaque, (voidpf)(addr)) 229204552Salfred#define TRY_FREE(s, p) {if (p) ZFREE(s, p);} 230204552Salfred 231204552Salfred#endif /* _Z_UTIL_H */ 232