1
2
3
4
5
6
7
8
9
10
11
12
13 #ifndef ZUTIL_H
14 #define ZUTIL_H
15
16 #define ZLIB_INTERNAL
17 #include "zlib.h"
18
19 #ifdef _STANDALONE
20 #include <lib/libsa/stand.h>
21 #else
22 #ifdef STDC
23 # ifndef _WIN32_WCE
24 # include <stddef.h>
25 # endif
26 # include <string.h>
27 # include <stdlib.h>
28 #endif
29 #ifdef NO_ERRNO_H
30 # ifdef _WIN32_WCE
31
32
33
34
35
36 # define errno z_errno
37 # endif
38 extern int errno;
39 #else
40 # ifndef _WIN32_WCE
41 # include <errno.h>
42 # endif
43 #endif
44 #endif
45
46 #ifndef local
47 # define local static
48 #endif
49
50
51 typedef unsigned char uch;
52 typedef uch FAR uchf;
53 typedef unsigned short ush;
54 typedef ush FAR ushf;
55 typedef unsigned long ulg;
56
57 extern const char * const z_errmsg[10];
58
59
60 #define ERR_MSG(err) z_errmsg[Z_NEED_DICT-(err)]
61
62 #define ERR_RETURN(strm,err) \
63 return (strm->msg = (char*)ERR_MSG(err), (err))
64
65
66
67
68 #ifndef DEF_WBITS
69 # define DEF_WBITS MAX_WBITS
70 #endif
71
72
73 #if MAX_MEM_LEVEL >= 8
74 # define DEF_MEM_LEVEL 8
75 #else
76 # define DEF_MEM_LEVEL MAX_MEM_LEVEL
77 #endif
78
79
80 #define STORED_BLOCK 0
81 #define STATIC_TREES 1
82 #define DYN_TREES 2
83
84
85 #define MIN_MATCH 3
86 #define MAX_MATCH 258
87
88
89 #define PRESET_DICT 0x20
90
91
92
93 #if defined(MSDOS) || (defined(WINDOWS) && !defined(WIN32))
94 # define OS_CODE 0x00
95 # if defined(__TURBOC__) || defined(__BORLANDC__)
96 # if(__STDC__ == 1) && (defined(__LARGE__) || defined(__COMPACT__))
97
98 void _Cdecl farfree( void *block );
99 void *_Cdecl farmalloc( unsigned long nbytes );
100 # else
101 # include <alloc.h>
102 # endif
103 # else
104 # include <malloc.h>
105 # endif
106 #endif
107
108 #ifdef AMIGA
109 # define OS_CODE 0x01
110 #endif
111
112 #if defined(VAXC) || defined(VMS)
113 # define OS_CODE 0x02
114 # define F_OPEN(name, mode) \
115 fopen((name), (mode), "mbc=60", "ctx=stm", "rfm=fix", "mrs=512")
116 #endif
117
118 #if defined(ATARI) || defined(atarist)
119 # define OS_CODE 0x05
120 #endif
121
122 #ifdef OS2
123 # define OS_CODE 0x06
124 # ifdef M_I86
125 #include <malloc.h>
126 # endif
127 #endif
128
129 #if defined(MACOS) || defined(TARGET_OS_MAC)
130 # define OS_CODE 0x07
131 # if defined(__MWERKS__) && __dest_os != __be_os && __dest_os != __win32_os
132 # include <unix.h>
133 # else
134 # ifndef fdopen
135 # define fdopen(fd,mode) NULL
136 # endif
137 # endif
138 #endif
139
140 #ifdef TOPS20
141 # define OS_CODE 0x0a
142 #endif
143
144 #ifdef WIN32
145 # ifndef __CYGWIN__
146 # define OS_CODE 0x0b
147 # endif
148 #endif
149
150 #ifdef __50SERIES
151 # define OS_CODE 0x0f
152 #endif
153
154 #if defined(_BEOS_) || defined(RISCOS)
155 # define fdopen(fd,mode) NULL
156 #endif
157
158 #if (defined(_MSC_VER) && (_MSC_VER > 600))
159 # if defined(_WIN32_WCE)
160 # define fdopen(fd,mode) NULL
161 # ifndef _PTRDIFF_T_DEFINED
162 typedef int ptrdiff_t;
163 # define _PTRDIFF_T_DEFINED
164 # endif
165 # else
166 # define fdopen(fd,type) _fdopen(fd,type)
167 # endif
168 #endif
169
170
171
172 #ifndef OS_CODE
173 # define OS_CODE 0x03
174 #endif
175
176 #ifndef F_OPEN
177 # define F_OPEN(name, mode) fopen((name), (mode))
178 #endif
179
180
181
182 #if defined(STDC99) || (defined(__TURBOC__) && __TURBOC__ >= 0x550)
183 # ifndef HAVE_VSNPRINTF
184 # define HAVE_VSNPRINTF
185 # endif
186 #endif
187 #if defined(__CYGWIN__)
188 # ifndef HAVE_VSNPRINTF
189 # define HAVE_VSNPRINTF
190 # endif
191 #endif
192 #ifndef HAVE_VSNPRINTF
193 # ifdef MSDOS
194
195
196 # define NO_vsnprintf
197 # endif
198 # ifdef __TURBOC__
199 # define NO_vsnprintf
200 # endif
201 # ifdef WIN32
202
203 # if !defined(vsnprintf) && !defined(NO_vsnprintf)
204 # define vsnprintf _vsnprintf
205 # endif
206 # endif
207 # ifdef __SASC
208 # define NO_vsnprintf
209 # endif
210 #endif
211 #ifdef VMS
212 # define NO_vsnprintf
213 #endif
214
215 #if defined(pyr)
216 # define NO_MEMCPY
217 #endif
218 #if defined(SMALL_MEDIUM) && !defined(_MSC_VER) && !defined(__SC__)
219
220
221
222
223 # define NO_MEMCPY
224 #endif
225 #if defined(STDC) && !defined(HAVE_MEMCPY) && !defined(NO_MEMCPY)
226 # define HAVE_MEMCPY
227 #endif
228 #ifdef HAVE_MEMCPY
229 # ifdef SMALL_MEDIUM
230 # define zmemcpy _fmemcpy
231 # define zmemcmp _fmemcmp
232 # define zmemzero(dest, len) _fmemset(dest, 0, len)
233 # else
234 # define zmemcpy memcpy
235 # define zmemcmp memcmp
236 # define zmemzero(dest, len) memset(dest, 0, len)
237 # endif
238 #else
239 extern void zmemcpy OF((Bytef* dest, const Bytef* source, uInt len));
240 extern int zmemcmp OF((const Bytef* s1, const Bytef* s2, uInt len));
241 extern void zmemzero OF((Bytef* dest, uInt len));
242 #endif
243
244
245 #ifdef DEBUG_LIBZ
246 # include <stdio.h>
247 extern int z_verbose;
248 extern void z_error OF((char *m));
249 # define Assert(cond,msg) {if(!(cond)) z_error(msg);}
250 # define Trace(x) {if (z_verbose>=0) fprintf x ;}
251 # define Tracev(x) {if (z_verbose>0) fprintf x ;}
252 # define Tracevv(x) {if (z_verbose>1) fprintf x ;}
253 # define Tracec(c,x) {if (z_verbose>0 && (c)) fprintf x ;}
254 # define Tracecv(c,x) {if (z_verbose>1 && (c)) fprintf x ;}
255 #else
256 # define Assert(cond,msg)
257 # define Trace(x)
258 # define Tracev(x)
259 # define Tracevv(x)
260 # define Tracec(c,x)
261 # define Tracecv(c,x)
262 #endif
263
264
265 voidpf zcalloc OF((voidpf opaque, unsigned items, unsigned size));
266 void zcfree OF((voidpf opaque, voidpf ptr));
267
268 #define ZALLOC(strm, items, size) \
269 (*((strm)->zalloc))((strm)->opaque, (items), (size))
270 #define ZFREE(strm, addr) (*((strm)->zfree))((strm)->opaque, (voidpf)(addr))
271 #define TRY_FREE(s, p) {if (p) ZFREE(s, p);}
272
273 #endif