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comparison zlib/zutil.h @ 10:1040ca591f2e

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First entry of Paradise Server 2.9 patch 10 Beta
author darius
date Sat, 06 Dec 1997 04:37:18 +0000
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9:331055a97a9d 10:1040ca591f2e
1 /* zutil.h -- internal interface and configuration of the compression library
2 * Copyright (C) 1995 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: zutil.h,v 1.1.1.1 1997/12/06 04:37:18 darius Exp $ */
12
13 #ifndef _Z_UTIL_H
14 #define _Z_UTIL_H
15
16 #include "zlib.h"
17
18 #if defined(MSDOS) || defined(VMS)
19 # include <stddef.h>
20 # include <errno.h>
21 #else
22 extern int errno;
23 #endif
24 #ifdef STDC
25 # include <string.h>
26 #endif
27
28 #ifndef local
29 # define local static
30 #endif
31 /* compile with -Dlocal if your debugger can't find static symbols */
32
33 typedef unsigned char uch;
34 typedef uch FAR uchf;
35 typedef unsigned short ush;
36 typedef ush FAR ushf;
37 typedef unsigned long ulg;
38
39 extern char *z_errmsg[]; /* indexed by 1-zlib_error */
40
41 #define ERR_RETURN(strm,err) return (strm->msg=z_errmsg[1-err], err)
42 /* To be used only when the state is known to be valid */
43
44 /* common constants */
45
46 #define DEFLATED 8
47
48 #ifndef DEF_WBITS
49 # define DEF_WBITS MAX_WBITS
50 #endif
51 /* default windowBits for decompression. MAX_WBITS is for compression only */
52
53 #if MAX_MEM_LEVEL >= 8
54 # define DEF_MEM_LEVEL 8
55 #else
56 # define DEF_MEM_LEVEL MAX_MEM_LEVEL
57 #endif
58 /* default memLevel */
59
60 #define STORED_BLOCK 0
61 #define STATIC_TREES 1
62 #define DYN_TREES 2
63 /* The three kinds of block type */
64
65 #define MIN_MATCH 3
66 #define MAX_MATCH 258
67 /* The minimum and maximum match lengths */
68
69 /* target dependencies */
70
71 #ifdef MSDOS
72 # define OS_CODE 0x00
73 # ifdef __TURBOC__
74 # include <alloc.h>
75 # else /* MSC or DJGPP */
76 # include <malloc.h>
77 # endif
78 #endif
79
80 #ifdef OS2
81 # define OS_CODE 0x06
82 #endif
83
84 #ifdef WIN32 /* Windows NT */
85 # define OS_CODE 0x0b
86 #endif
87
88 #if defined(VAXC) || defined(VMS)
89 # define OS_CODE 0x02
90 # define FOPEN(name, mode) \
91 fopen((name), (mode), "mbc=60", "ctx=stm", "rfm=fix", "mrs=512")
92 #endif
93
94 #ifdef AMIGA
95 # define OS_CODE 0x01
96 #endif
97
98 #if defined(ATARI) || defined(atarist)
99 # define OS_CODE 0x05
100 #endif
101
102 #ifdef MACOS
103 # define OS_CODE 0x07
104 #endif
105
106 #ifdef __50SERIES /* Prime/PRIMOS */
107 # define OS_CODE 0x0F
108 #endif
109
110 #ifdef TOPS20
111 # define OS_CODE 0x0a
112 #endif
113
114 /* Common defaults */
115
116 #ifndef OS_CODE
117 # define OS_CODE 0x03 /* assume Unix */
118 #endif
119
120 #ifndef FOPEN
121 # define FOPEN(name, mode) fopen((name), (mode))
122 #endif
123
124 /* functions */
125
126 #ifdef HAVE_STRERROR
127 extern char *strerror OF((int));
128 # define zstrerror(errnum) strerror(errnum)
129 #else
130 # define zstrerror(errnum) ""
131 #endif
132
133 #if defined(pyr)
134 # define NO_MEMCPY
135 #endif
136 #if (defined(M_I86SM) || defined(M_I86MM)) && !defined(_MSC_VER)
137 /* Use our own functions for small and medium model with MSC <= 5.0.
138 * You may have to use the same strategy for Borland C (untested).
139 */
140 # define NO_MEMCPY
141 #endif
142 #if defined(STDC) && !defined(HAVE_MEMCPY) && !defined(NO_MEMCPY)
143 # define HAVE_MEMCPY
144 #endif
145 #ifdef HAVE_MEMCPY
146 # if defined(M_I86SM) || defined(M_I86MM) /* MSC small or medium model */
147 # define zmemcpy _fmemcpy
148 # define zmemzero(dest, len) _fmemset(dest, 0, len)
149 # else
150 # define zmemcpy memcpy
151 # define zmemzero(dest, len) memset(dest, 0, len)
152 # endif
153 #else
154 extern void zmemcpy OF((Bytef* dest, Bytef* source, uInt len));
155 extern void zmemzero OF((Bytef* dest, uInt len));
156 #endif
157
158 /* Diagnostic functions */
159 #ifdef DEBUG
160 # include <stdio.h>
161 # ifndef verbose
162 # define verbose 0
163 # endif
164 # define Assert(cond,msg) {if(!(cond)) z_error(msg);}
165 # define Trace(x) fprintf x
166 # define Tracev(x) {if (verbose) fprintf x ;}
167 # define Tracevv(x) {if (verbose>1) fprintf x ;}
168 # define Tracec(c,x) {if (verbose && (c)) fprintf x ;}
169 # define Tracecv(c,x) {if (verbose>1 && (c)) fprintf x ;}
170 #else
171 # define Assert(cond,msg)
172 # define Trace(x)
173 # define Tracev(x)
174 # define Tracevv(x)
175 # define Tracec(c,x)
176 # define Tracecv(c,x)
177 #endif
178
179
180 typedef uLong (*check_func) OF((uLong check, Bytef *buf, uInt len));
181
182 extern void z_error OF((char *m));
183
184 voidpf zcalloc OF((voidpf opaque, unsigned items, unsigned size));
185 void zcfree OF((voidpf opaque, voidpf ptr));
186
187 #define ZALLOC(strm, items, size) \
188 (*((strm)->zalloc))((strm)->opaque, (items), (size))
189 #define ZFREE(strm, addr) (*((strm)->zfree))((strm)->opaque, (voidpf)(addr))
190 #define TRY_FREE(s, p) {if (p) ZFREE(s, p);}
191
192 #endif /* _Z_UTIL_H */