/*
* Descent 3
* Copyright (C) 2024 Parallax Software
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see .
*/
/*
* $Logfile: /DescentIII/Main/unzip/zutil.h $
* $Revision: 2 $
* $Date: 8/13/99 8:02p $
* $Author: Jeff $
*
*
*
* $Log: /DescentIII/Main/unzip/zutil.h $
*
* 2 8/13/99 8:02p Jeff
* initial creation of zip class
*
* $NoKeywords: $
*/
/* zutil.h -- internal interface and configuration of the compression library
* Copyright (C) 1995-1998 Jean-loup Gailly.
* For conditions of distribution and use, see copyright notice in zlib.h
*/
/* WARNING: this file should *not* be used by applications. It is
part of the implementation of the compression library and is
subject to change. Applications should only use zlib.h.
*/
/* @(#) $Id$ */
#ifndef _Z_UTIL_H
#define _Z_UTIL_H
#include "zlib.h"
#ifdef STDC
#include
#include
#include
#endif
#ifdef NO_ERRNO_H
extern int errno;
#else
#include
#endif
#ifndef local
#define local static
#endif
/* compile with -Dlocal if your debugger can't find static symbols */
typedef unsigned char uch;
typedef uch FAR uchf;
typedef unsigned short ush;
typedef ush FAR ushf;
typedef unsigned long ulg;
extern const char *z_errmsg[10]; /* indexed by 2-zlib_error */
/* (size given to avoid silly warnings with Visual C++) */
#define ERR_MSG(err) z_errmsg[Z_NEED_DICT - (err)]
#define ERR_RETURN(strm, err) return (strm->msg = (char *)ERR_MSG(err), (err))
/* To be used only when the state is known to be valid */
/* common constants */
#ifndef DEF_WBITS
#define DEF_WBITS MAX_WBITS
#endif
/* default windowBits for decompression. MAX_WBITS is for compression only */
#if MAX_MEM_LEVEL >= 8
#define DEF_MEM_LEVEL 8
#else
#define DEF_MEM_LEVEL MAX_MEM_LEVEL
#endif
/* default memLevel */
#define STORED_BLOCK 0
#define STATIC_TREES 1
#define DYN_TREES 2
/* The three kinds of block type */
#define MIN_MATCH 3
#define MAX_MATCH 258
/* The minimum and maximum match lengths */
#define PRESET_DICT 0x20 /* preset dictionary flag in zlib header */
/* target dependencies */
#ifdef MSDOS
#define OS_CODE 0x00
#if defined(__TURBOC__) || defined(__BORLANDC__)
#if (__STDC__ == 1) && (defined(__LARGE__) || defined(__COMPACT__))
/* Allow compilation with ANSI keywords only enabled */
void _Cdecl farfree(void *block);
void *_Cdecl farmalloc(unsigned long nbytes);
#else
#include
#endif
#else /* MSC or DJGPP */
#include
#endif
#endif
#ifdef OS2
#define OS_CODE 0x06
#endif
#ifdef WIN32 /* Window 95 & Windows NT */
#define OS_CODE 0x0b
#endif
#if defined(VAXC) || defined(VMS)
#define OS_CODE 0x02
#define F_OPEN(name, mode) fopen((name), (mode), "mbc=60", "ctx=stm", "rfm=fix", "mrs=512")
#endif
#ifdef AMIGA
#define OS_CODE 0x01
#endif
#if defined(ATARI) || defined(atarist)
#define OS_CODE 0x05
#endif
#if defined(MACOS) || defined(TARGET_OS_MAC)
#define OS_CODE 0x07
#if defined(__MWERKS__) && __dest_os != __be_os && __dest_os != __win32_os
#include /* for fdopen */
#else
#ifndef fdopen
#define fdopen(fd, mode) NULL /* No fdopen() */
#endif
#endif
#endif
#ifdef __50SERIES /* Prime/PRIMOS */
#define OS_CODE 0x0F
#endif
#ifdef TOPS20
#define OS_CODE 0x0a
#endif
#if defined(_BEOS_) || defined(RISCOS)
#define fdopen(fd, mode) NULL /* No fdopen() */
#endif
#if (defined(_MSC_VER) && (_MSC_VER > 600))
#define fdopen(fd, type) _fdopen(fd, type)
#endif
/* Common defaults */
#ifndef OS_CODE
#define OS_CODE 0x03 /* assume Unix */
#endif
#ifndef F_OPEN
#define F_OPEN(name, mode) fopen((name), (mode))
#endif
/* functions */
#ifdef HAVE_STRERROR
extern char *strerror OF((int));
#define zstrerror(errnum) strerror(errnum)
#else
#define zstrerror(errnum) ""
#endif
#if defined(pyr)
#define NO_MEMCPY
#endif
#if defined(SMALL_MEDIUM) && !defined(_MSC_VER) && !defined(__SC__)
/* Use our own functions for small and medium model with MSC <= 5.0.
* You may have to use the same strategy for Borland C (untested).
* The __SC__ check is for Symantec.
*/
#define NO_MEMCPY
#endif
#if defined(STDC) && !defined(HAVE_MEMCPY) && !defined(NO_MEMCPY)
#define HAVE_MEMCPY
#endif
#ifdef HAVE_MEMCPY
#ifdef SMALL_MEDIUM /* MSDOS small or medium model */
#define zmemcpy _fmemcpy
#define zmemcmp _fmemcmp
#define zmemzero(dest, len) _fmemset(dest, 0, len)
#else
#define zmemcpy memcpy
#define zmemcmp memcmp
#define zmemzero(dest, len) memset(dest, 0, len)
#endif
#else
extern void zmemcpy OF((Bytef * dest, const Bytef *source, uInt len));
extern int zmemcmp OF((const Bytef *s1, const Bytef *s2, uInt len));
extern void zmemzero OF((Bytef * dest, uInt len));
#endif
/* Diagnostic functions */
#ifdef DEBUG
#include
extern int z_verbose;
extern void z_error OF((char *m));
#define Assert(cond, msg) \
{ \
if (!(cond)) \
z_error(msg); \
}
#define Trace(x) \
{ \
if (z_verbose >= 0) \
fprintf x; \
}
#define Tracev(x) \
{ \
if (z_verbose > 0) \
fprintf x; \
}
#define Tracevv(x) \
{ \
if (z_verbose > 1) \
fprintf x; \
}
#define Tracec(c, x) \
{ \
if (z_verbose > 0 && (c)) \
fprintf x; \
}
#define Tracecv(c, x) \
{ \
if (z_verbose > 1 && (c)) \
fprintf x; \
}
#else
#define Assert(cond, msg)
#define Trace(x)
#define Tracev(x)
#define Tracevv(x)
#define Tracec(c, x)
#define Tracecv(c, x)
#endif
typedef uLong(ZEXPORT *check_func) OF((uLong check, const Bytef *buf, uInt len));
voidpf zcalloc OF((voidpf opaque, unsigned items, unsigned size));
void zcfree OF((voidpf opaque, voidpf ptr));
#define ZALLOC(strm, items, size) (*((strm)->zalloc))((strm)->opaque, (items), (size))
#define ZFREE(strm, addr) (*((strm)->zfree))((strm)->opaque, (voidpf)(addr))
#define TRY_FREE(s, p) \
{ \
if (p) \
ZFREE(s, p); \
}
#endif /* _Z_UTIL_H */