| 1 | /* zutil.h -- internal interface and configuration of the compression library
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| 2 | * Copyright (C) 1995-2005 Jean-loup Gailly.
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| 3 | * For conditions of distribution and use, see copyright notice in zlib.h
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| 4 | */
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| 5 |
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| 6 | /* WARNING: this file should *not* be used by applications. It is
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| 7 | part of the implementation of the compression library and is
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| 8 | subject to change. Applications should only use zlib.h.
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| 9 | */
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| 10 |
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| 11 | /* @(#) $Id$ */
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| 12 |
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| 13 | #ifndef ZUTIL_H
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| 14 | #define ZUTIL_H
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| 15 |
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| 16 | #define ZLIB_INTERNAL
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| 17 | #include "zlib.h"
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| 18 |
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| 19 | #ifdef STDC
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| 20 | # ifndef _WIN32_WCE
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| 21 | # include <stddef.h>
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| 22 | # endif
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| 23 | # include <string.h>
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| 24 | # include <stdlib.h>
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| 25 | #endif
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| 26 | #ifdef NO_ERRNO_H
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| 27 | # ifdef _WIN32_WCE
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| 28 | /* The Microsoft C Run-Time Library for Windows CE doesn't have
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| 29 | * errno. We define it as a global variable to simplify porting.
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| 30 | * Its value is always 0 and should not be used. We rename it to
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| 31 | * avoid conflict with other libraries that use the same workaround.
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| 32 | */
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| 33 | # define errno z_errno
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| 34 | # endif
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| 35 | extern int errno;
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| 36 | #else
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| 37 | # ifndef _WIN32_WCE
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| 38 | # include <errno.h>
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| 39 | # endif
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| 40 | #endif
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| 41 |
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| 42 | #ifndef local
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| 43 | # define local static
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| 44 | #endif
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| 45 | /* compile with -Dlocal if your debugger can't find static symbols */
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| 46 |
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| 47 | typedef unsigned char uch;
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| 48 | typedef uch FAR uchf;
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| 49 | typedef unsigned short ush;
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| 50 | typedef ush FAR ushf;
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| 51 | typedef unsigned long ulg;
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| 52 |
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| 53 | extern const char * const z_errmsg[10]; /* indexed by 2-zlib_error */
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| 54 | /* (size given to avoid silly warnings with Visual C++) */
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| 55 |
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| 56 | #define ERR_MSG(err) z_errmsg[Z_NEED_DICT-(err)]
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| 57 |
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| 58 | #define ERR_RETURN(strm,err) \
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| 59 | return (strm->msg = (char*)ERR_MSG(err), (err))
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| 60 | /* To be used only when the state is known to be valid */
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| 61 |
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| 62 | /* common constants */
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| 63 |
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| 64 | #ifndef DEF_WBITS
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| 65 | # define DEF_WBITS MAX_WBITS
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| 66 | #endif
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| 67 | /* default windowBits for decompression. MAX_WBITS is for compression only */
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| 68 |
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| 69 | #if MAX_MEM_LEVEL >= 8
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| 70 | # define DEF_MEM_LEVEL 8
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| 71 | #else
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| 72 | # define DEF_MEM_LEVEL MAX_MEM_LEVEL
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| 73 | #endif
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| 74 | /* default memLevel */
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| 75 |
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| 76 | #define STORED_BLOCK 0
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| 77 | #define STATIC_TREES 1
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| 78 | #define DYN_TREES 2
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| 79 | /* The three kinds of block type */
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| 80 |
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| 81 | #define MIN_MATCH 3
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| 82 | #define MAX_MATCH 258
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| 83 | /* The minimum and maximum match lengths */
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| 84 |
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| 85 | #define PRESET_DICT 0x20 /* preset dictionary flag in zlib header */
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| 86 |
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| 87 | /* target dependencies */
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| 88 |
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| 89 | #if defined(MSDOS) || (defined(WINDOWS) && !defined(WIN32))
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| 90 | # define OS_CODE 0x00
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| 91 | # if defined(__TURBOC__) || defined(__BORLANDC__)
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| 92 | # if(__STDC__ == 1) && (defined(__LARGE__) || defined(__COMPACT__))
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| 93 | /* Allow compilation with ANSI keywords only enabled */
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| 94 | void _Cdecl farfree( void *block );
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| 95 | void *_Cdecl farmalloc( unsigned long nbytes );
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| 96 | # else
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| 97 | # include <alloc.h>
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| 98 | # endif
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| 99 | # else /* MSC or DJGPP */
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| 100 | # include <malloc.h>
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| 101 | # endif
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| 102 | #endif
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| 103 |
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| 104 | #ifdef AMIGA
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| 105 | # define OS_CODE 0x01
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| 106 | #endif
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| 107 |
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| 108 | #if defined(VAXC) || defined(VMS)
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| 109 | # define OS_CODE 0x02
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| 110 | # define F_OPEN(name, mode) \
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| 111 | fopen((name), (mode), "mbc=60", "ctx=stm", "rfm=fix", "mrs=512")
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| 112 | #endif
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| 113 |
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| 114 | #if defined(ATARI) || defined(atarist)
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| 115 | # define OS_CODE 0x05
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| 116 | #endif
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| 117 |
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