1 | /* zutil.h -- internal interface and configuration of the compression library␊ |
2 | * Copyright (C) 1995-2010 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 | /* @(#) $Id$ */␊ |
12 | ␊ |
13 | #ifndef ZUTIL_H␊ |
14 | #define ZUTIL_H␊ |
15 | ␊ |
16 | #if ((__GNUC__-0) * 10 + __GNUC_MINOR__-0 >= 33) && !defined(NO_VIZ)␊ |
17 | # define ZLIB_INTERNAL __attribute__((visibility ("hidden")))␊ |
18 | #else␊ |
19 | # define ZLIB_INTERNAL␊ |
20 | #endif␊ |
21 | ␊ |
22 | #include "zlib.h"␊ |
23 | ␊ |
24 | #ifdef STDC␊ |
25 | # if !(defined(_WIN32_WCE) && defined(_MSC_VER))␊ |
26 | # include <stddef.h>␊ |
27 | # endif␊ |
28 | # include <string.h>␊ |
29 | # include <stdlib.h>␊ |
30 | #endif␊ |
31 | ␊ |
32 | #ifndef local␊ |
33 | # define local static␊ |
34 | #endif␊ |
35 | /* compile with -Dlocal if your debugger can't find static symbols */␊ |
36 | ␊ |
37 | typedef unsigned char uch;␊ |
38 | typedef uch FAR uchf;␊ |
39 | typedef unsigned short ush;␊ |
40 | typedef ush FAR ushf;␊ |
41 | typedef unsigned long ulg;␊ |
42 | ␊ |
43 | extern const char * const z_errmsg[10]; /* indexed by 2-zlib_error */␊ |
44 | /* (size given to avoid silly warnings with Visual C++) */␊ |
45 | ␊ |
46 | #define ERR_MSG(err) z_errmsg[Z_NEED_DICT-(err)]␊ |
47 | ␊ |
48 | #define ERR_RETURN(strm,err) \␊ |
49 | return (strm->msg = (char*)ERR_MSG(err), (err))␊ |
50 | /* To be used only when the state is known to be valid */␊ |
51 | ␊ |
52 | /* common constants */␊ |
53 | ␊ |
54 | #ifndef DEF_WBITS␊ |
55 | # define DEF_WBITS MAX_WBITS␊ |
56 | #endif␊ |
57 | /* default windowBits for decompression. MAX_WBITS is for compression only */␊ |
58 | ␊ |
59 | #if MAX_MEM_LEVEL >= 8␊ |
60 | # define DEF_MEM_LEVEL 8␊ |
61 | #else␊ |
62 | # define DEF_MEM_LEVEL MAX_MEM_LEVEL␊ |
63 | #endif␊ |
64 | /* default memLevel */␊ |
65 | ␊ |
66 | #define STORED_BLOCK 0␊ |
67 | #define STATIC_TREES 1␊ |
68 | #define DYN_TREES 2␊ |
69 | /* The three kinds of block type */␊ |
70 | ␊ |
71 | #define MIN_MATCH 3␊ |
72 | #define MAX_MATCH 258␊ |
73 | /* The minimum and maximum match lengths */␊ |
74 | ␊ |
75 | #define PRESET_DICT 0x20 /* preset dictionary flag in zlib header */␊ |
76 | ␊ |
77 | /* target dependencies */␊ |
78 | ␊ |
79 | #if defined(MSDOS) || (defined(WINDOWS) && !defined(WIN32))␊ |
80 | # define OS_CODE 0x00␊ |
81 | # if defined(__TURBOC__) || defined(__BORLANDC__)␊ |
82 | # if (__STDC__ == 1) && (defined(__LARGE__) || defined(__COMPACT__))␊ |
83 | /* Allow compilation with ANSI keywords only enabled */␊ |
84 | void _Cdecl farfree( void *block );␊ |
85 | void *_Cdecl farmalloc( unsigned long nbytes );␊ |
86 | # else␊ |
87 | # include <alloc.h>␊ |
88 | # endif␊ |
89 | # else /* MSC or DJGPP */␊ |
90 | # include <malloc.h>␊ |
91 | # endif␊ |
92 | #endif␊ |
93 | ␊ |
94 | #ifdef AMIGA␊ |
95 | # define OS_CODE 0x01␊ |
96 | #endif␊ |
97 | ␊ |
98 | #if defined(VAXC) || defined(VMS)␊ |
99 | # define OS_CODE 0x02␊ |
100 | # define F_OPEN(name, mode) \␊ |
101 | fopen((name), (mode), "mbc=60", "ctx=stm", "rfm=fix", "mrs=512")␊ |
102 | #endif␊ |
103 | ␊ |
104 | #if defined(ATARI) || defined(atarist)␊ |
105 | # define OS_CODE 0x05␊ |
106 | #endif␊ |
107 | ␊ |
108 | #ifdef OS2␊ |
109 | # define OS_CODE 0x06␊ |
110 | # ifdef M_I86␊ |
111 | //# include <malloc.h>␊ |
112 | # endif␊ |
113 | #endif␊ |
114 | ␊ |
115 | #if defined(MACOS) || defined(TARGET_OS_MAC)␊ |
116 | # define OS_CODE 0x07␊ |
117 | # if defined(__MWERKS__) && __dest_os != __be_os && __dest_os != __win32_os␊ |
118 | # include <unix.h> /* for fdopen */␊ |
119 | # else␊ |
120 | # ifndef fdopen␊ |
121 | # define fdopen(fd,mode) NULL /* No fdopen() */␊ |
122 | # endif␊ |
123 | # endif␊ |
124 | #endif␊ |
125 | ␊ |
126 | #ifdef TOPS20␊ |
127 | # define OS_CODE 0x0a␊ |
128 | #endif␊ |
129 | ␊ |
130 | #ifdef WIN32␊ |
131 | # ifndef __CYGWIN__ /* Cygwin is Unix, not Win32 */␊ |
132 | # define OS_CODE 0x0b␊ |
133 | # endif␊ |
134 | #endif␊ |
135 | ␊ |
136 | #ifdef __50SERIES /* Prime/PRIMOS */␊ |
137 | # define OS_CODE 0x0f␊ |
138 | #endif␊ |
139 | ␊ |
140 | #if defined(_BEOS_) || defined(RISCOS)␊ |
141 | # define fdopen(fd,mode) NULL /* No fdopen() */␊ |
142 | #endif␊ |
143 | ␊ |
144 | #if (defined(_MSC_VER) && (_MSC_VER > 600)) && !defined __INTERIX␊ |
145 | # if defined(_WIN32_WCE)␊ |
146 | # define fdopen(fd,mode) NULL /* No fdopen() */␊ |
147 | # ifndef _PTRDIFF_T_DEFINED␊ |
148 | typedef int ptrdiff_t;␊ |
149 | # define _PTRDIFF_T_DEFINED␊ |
150 | # endif␊ |
151 | # else␊ |
152 | # define fdopen(fd,type) _fdopen(fd,type)␊ |
153 | # endif␊ |
154 | #endif␊ |
155 | ␊ |
156 | #if defined(__BORLANDC__)␊ |
157 | #pragma warn -8004␊ |
158 | #pragma warn -8008␊ |
159 | #pragma warn -8066␊ |
160 | #endif␊ |
161 | ␊ |
162 | /* provide prototypes for these when building zlib without LFS */␊ |
163 | #if !defined(_LARGEFILE64_SOURCE) || _LFS64_LARGEFILE-0 == 0␊ |
164 | ZEXTERN uLong ZEXPORT adler32_combine64 OF((uLong, uLong, z_off_t));␊ |
165 | ZEXTERN uLong ZEXPORT crc32_combine64 OF((uLong, uLong, z_off_t));␊ |
166 | #endif␊ |
167 | ␊ |
168 | /* common defaults */␊ |
169 | ␊ |
170 | #ifndef OS_CODE␊ |
171 | # define OS_CODE 0x03 /* assume Unix */␊ |
172 | #endif␊ |
173 | ␊ |
174 | #ifndef F_OPEN␊ |
175 | # define F_OPEN(name, mode) fopen((name), (mode))␊ |
176 | #endif␊ |
177 | ␊ |
178 | /* functions */␊ |
179 | ␊ |
180 | #if defined(STDC99) || (defined(__TURBOC__) && __TURBOC__ >= 0x550)␊ |
181 | # ifndef HAVE_VSNPRINTF␊ |
182 | # define HAVE_VSNPRINTF␊ |
183 | # endif␊ |
184 | #endif␊ |
185 | #if defined(__CYGWIN__)␊ |
186 | # ifndef HAVE_VSNPRINTF␊ |
187 | # define HAVE_VSNPRINTF␊ |
188 | # endif␊ |
189 | #endif␊ |
190 | #ifndef HAVE_VSNPRINTF␊ |
191 | # ifdef MSDOS␊ |
192 | /* vsnprintf may exist on some MS-DOS compilers (DJGPP?),␊ |
193 | but for now we just assume it doesn't. */␊ |
194 | # define NO_vsnprintf␊ |
195 | # endif␊ |
196 | # ifdef __TURBOC__␊ |
197 | # define NO_vsnprintf␊ |
198 | # endif␊ |
199 | # ifdef WIN32␊ |
200 | /* In Win32, vsnprintf is available as the "non-ANSI" _vsnprintf. */␊ |
201 | # if !defined(vsnprintf) && !defined(NO_vsnprintf)␊ |
202 | # if !defined(_MSC_VER) || ( defined(_MSC_VER) && _MSC_VER < 1500 )␊ |
203 | # define vsnprintf _vsnprintf␊ |
204 | # endif␊ |
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 | /* Use our own functions for small and medium model with MSC <= 5.0.␊ |
220 | * You may have to use the same strategy for Borland C (untested).␊ |
221 | * The __SC__ check is for Symantec.␊ |
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 /* MSDOS small or medium model */␊ |
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 | void ZLIB_INTERNAL zmemcpy OF((Bytef* dest, const Bytef* source, uInt len));␊ |
240 | int ZLIB_INTERNAL zmemcmp OF((const Bytef* s1, const Bytef* s2, uInt len));␊ |
241 | void ZLIB_INTERNAL zmemzero OF((Bytef* dest, uInt len));␊ |
242 | #endif␊ |
243 | ␊ |
244 | /* Diagnostic functions */␊ |
245 | #ifdef DEBUG␊ |
246 | # include <stdio.h>␊ |
247 | extern int ZLIB_INTERNAL z_verbose;␊ |
248 | extern void ZLIB_INTERNAL 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 ZLIB_INTERNAL zcalloc OF((voidpf opaque, unsigned items,␊ |
266 | unsigned size));␊ |
267 | void ZLIB_INTERNAL zcfree OF((voidpf opaque, voidpf ptr));␊ |
268 | ␊ |
269 | #define ZALLOC(strm, items, size) \␊ |
270 | (*((strm)->zalloc))((strm)->opaque, (items), (size))␊ |
271 | #define ZFREE(strm, addr) (*((strm)->zfree))((strm)->opaque, (voidpf)(addr))␊ |
272 | #define TRY_FREE(s, p) {if (p) ZFREE(s, p);}␊ |
273 | ␊ |
274 | #endif /* ZUTIL_H */␊ |
275 | |