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zutil.h
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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 
33 
34 #ifndef local
35 # define local static
36 #endif
37 /* compile with -Dlocal if your debugger can't find static symbols */
38 
39 typedef unsigned char uch;
40 typedef uch FAR uchf;
41 typedef unsigned short ush;
42 typedef ush FAR ushf;
43 typedef unsigned long ulg;
44 
45 extern const char * const z_errmsg[10]; /* indexed by 2-zlib_error */
46 /* (size given to avoid silly warnings with Visual C++) */
47 
48 #define ERR_MSG(err) z_errmsg[Z_NEED_DICT-(err)]
49 
50 #define ERR_RETURN(strm,err) \
51  return (strm->msg = (char*)ERR_MSG(err), (err))
52 /* To be used only when the state is known to be valid */
53 
54  /* common constants */
55 
56 #ifndef DEF_WBITS
57 # define DEF_WBITS MAX_WBITS
58 #endif
59 /* default windowBits for decompression. MAX_WBITS is for compression only */
60 
61 #if MAX_MEM_LEVEL >= 8
62 # define DEF_MEM_LEVEL 8
63 #else
64 # define DEF_MEM_LEVEL MAX_MEM_LEVEL
65 #endif
66 /* default memLevel */
67 
68 #define STORED_BLOCK 0
69 #define STATIC_TREES 1
70 #define DYN_TREES 2
71 /* The three kinds of block type */
72 
73 #define MIN_MATCH 3
74 #define MAX_MATCH 258
75 /* The minimum and maximum match lengths */
76 
77 #define PRESET_DICT 0x20 /* preset dictionary flag in zlib header */
78 
79  /* target dependencies */
80 
81 #if defined(MSDOS) || (defined(WINDOWS) && !defined(WIN32))
82 # define OS_CODE 0x00
83 # if defined(__TURBOC__) || defined(__BORLANDC__)
84 # if (__STDC__ == 1) && (defined(__LARGE__) || defined(__COMPACT__))
85  /* Allow compilation with ANSI keywords only enabled */
86  void _Cdecl farfree( void *block );
87  void *_Cdecl farmalloc( unsigned long nbytes );
88 # else
90 # include <alloc.h>
92 # endif
93 # else /* MSC or DJGPP */
95 # include <malloc.h>
97 # endif
98 #endif
99 
100 #ifdef AMIGA
101 # define OS_CODE 0x01
102 #endif
103 
104 #if defined(VAXC) || defined(VMS)
105 # define OS_CODE 0x02
106 # define F_OPEN(name, mode) \
107  fopen((name), (mode), "mbc=60", "ctx=stm", "rfm=fix", "mrs=512")
108 #endif
109 
110 #if defined(ATARI) || defined(atarist)
111 # define OS_CODE 0x05
112 #endif
113 
114 #ifdef OS2
115 # define OS_CODE 0x06
116 # ifdef M_I86
118 # include <malloc.h>
120 # endif
121 #endif
122 
123 #if defined(MACOS) || defined(TARGET_OS_MAC)
124 # define OS_CODE 0x07
125 # if defined(__MWERKS__) && __dest_os != __be_os && __dest_os != __win32_os
127 # include <unix.h> /* for fdopen */
129 # else
130 # ifndef fdopen
131 # define fdopen(fd,mode) NULL /* No fdopen() */
132 # endif
133 # endif
134 #endif
135 
136 #ifdef TOPS20
137 # define OS_CODE 0x0a
138 #endif
139 
140 #ifdef WIN32
141 # ifndef __CYGWIN__ /* Cygwin is Unix, not Win32 */
142 # define OS_CODE 0x0b
143 # endif
144 #endif
145 
146 #ifdef __50SERIES /* Prime/PRIMOS */
147 # define OS_CODE 0x0f
148 #endif
149 
150 #if defined(_BEOS_) || defined(RISCOS)
151 # define fdopen(fd,mode) NULL /* No fdopen() */
152 #endif
153 
154 #if (defined(_MSC_VER) && (_MSC_VER > 600)) && !defined __INTERIX
155 # if defined(_WIN32_WCE)
156 # define fdopen(fd,mode) NULL /* No fdopen() */
157 # ifndef _PTRDIFF_T_DEFINED
158  typedef int ptrdiff_t;
159 # define _PTRDIFF_T_DEFINED
160 # endif
161 # else
162 # define fdopen(fd,type) _fdopen(fd,type)
163 # endif
164 #endif
165 
166 #if defined(__BORLANDC__)
167  #pragma warn -8004
168  #pragma warn -8008
169  #pragma warn -8066
170 #endif
171 
172 /* provide prototypes for these when building zlib without LFS */
173 #if !defined(_LARGEFILE64_SOURCE) || _LFS64_LARGEFILE-0 == 0
176 #endif
177 
178  /* common defaults */
179 
180 #ifndef OS_CODE
181 # define OS_CODE 0x03 /* assume Unix */
182 #endif
183 
184 #ifndef F_OPEN
185 # define F_OPEN(name, mode) fopen((name), (mode))
186 #endif
187 
188  /* functions */
189 
190 #if defined(STDC99) || (defined(__TURBOC__) && __TURBOC__ >= 0x550)
191 # ifndef HAVE_VSNPRINTF
192 # define HAVE_VSNPRINTF
193 # endif
194 #endif
195 #if defined(__CYGWIN__)
196 # ifndef HAVE_VSNPRINTF
197 # define HAVE_VSNPRINTF
198 # endif
199 #endif
200 #ifndef HAVE_VSNPRINTF
201 # ifdef MSDOS
202  /* vsnprintf may exist on some MS-DOS compilers (DJGPP?),
203  but for now we just assume it doesn't. */
204 # define NO_vsnprintf
205 # endif
206 # ifdef __TURBOC__
207 # define NO_vsnprintf
208 # endif
209 # ifdef WIN32
210  /* In Win32, vsnprintf is available as the "non-ANSI" _vsnprintf. */
211 # if !defined(vsnprintf) && !defined(NO_vsnprintf)
212 # if !defined(_MSC_VER) || ( defined(_MSC_VER) && _MSC_VER < 1500 )
213 # define vsnprintf _vsnprintf
214 # endif
215 # endif
216 # endif
217 # ifdef __SASC
218 # define NO_vsnprintf
219 # endif
220 #endif
221 #ifdef VMS
222 # define NO_vsnprintf
223 #endif
224 
225 #if defined(pyr)
226 # define NO_MEMCPY
227 #endif
228 #if defined(SMALL_MEDIUM) && !defined(_MSC_VER) && !defined(__SC__)
229  /* Use our own functions for small and medium model with MSC <= 5.0.
230  * You may have to use the same strategy for Borland C (untested).
231  * The __SC__ check is for Symantec.
232  */
233 # define NO_MEMCPY
234 #endif
235 #if defined(STDC) && !defined(HAVE_MEMCPY) && !defined(NO_MEMCPY)
236 # define HAVE_MEMCPY
237 #endif
238 #ifdef HAVE_MEMCPY
239 # ifdef SMALL_MEDIUM /* MSDOS small or medium model */
240 # define zmemcpy _fmemcpy
241 # define zmemcmp _fmemcmp
242 # define zmemzero(dest, len) _fmemset(dest, 0, len)
243 # else
244 # define zmemcpy memcpy
245 # define zmemcmp memcmp
246 # define zmemzero(dest, len) memset(dest, 0, len)
247 # endif
248 #else
249  void ZLIB_INTERNAL zmemcpy OF((Bytef* dest, const Bytef* source, uInt len));
250  int ZLIB_INTERNAL zmemcmp OF((const Bytef* s1, const Bytef* s2, uInt len));
251  void ZLIB_INTERNAL zmemzero OF((Bytef* dest, uInt len));
252 #endif
253 
254 /* Diagnostic functions */
255 #ifdef DEBUG
257 # include <stdio.h>
259  extern int ZLIB_INTERNAL z_verbose;
260  extern void ZLIB_INTERNAL z_error OF((char *m));
261 # define Assert(cond,msg) {if(!(cond)) z_error(msg);}
262 # define Trace(x) {if (z_verbose>=0) fprintf x ;}
263 # define Tracev(x) {if (z_verbose>0) fprintf x ;}
264 # define Tracevv(x) {if (z_verbose>1) fprintf x ;}
265 # define Tracec(c,x) {if (z_verbose>0 && (c)) fprintf x ;}
266 # define Tracecv(c,x) {if (z_verbose>1 && (c)) fprintf x ;}
267 #else
268 # define Assert(cond,msg)
269 # define Trace(x)
270 # define Tracev(x)
271 # define Tracevv(x)
272 # define Tracec(c,x)
273 # define Tracecv(c,x)
274 #endif
275 
276 
277 voidpf ZLIB_INTERNAL zcalloc OF((voidpf opaque, unsigned items,
278  unsigned size));
279 void ZLIB_INTERNAL zcfree OF((voidpf opaque, voidpf ptr));
280 
281 #define ZALLOC(strm, items, size) \
282  (*((strm)->zalloc))((strm)->opaque, (items), (size))
283 #define ZFREE(strm, addr) (*((strm)->zfree))((strm)->opaque, (voidpf)(addr))
284 #define TRY_FREE(s, p) {if (p) ZFREE(s, p);}
285 
287 
288 #endif /* ZUTIL_H */
Byte FAR * voidpf
Definition: zconf.h:355
ush FAR ushf
Definition: zutil.h:42
#define z_off_t
Definition: zconf.h:396
unsigned long uLong
Definition: zconf.h:336
Byte FAR Bytef
Definition: zconf.h:342
unsigned short ush
Definition: zutil.h:41
void ZLIB_INTERNAL zmemzero(Bytef *dest, uInt len)
Definition: zutil.c:175
static int size
Definition: cuddSign.c:86
#define ABC_NAMESPACE_HEADER_START
NAMESPACES ///.
Definition: abc_global.h:105
static char s1[largest_string]
Definition: set.c:514
void ZLIB_INTERNAL zmemcpy(Bytef *dest, const Bytef *source, uInt len)
Definition: zutil.c:157
uLong ZEXPORT adler32_combine64(uLong adler1, uLong adler2, z_off64_t len2)
Definition: adler32.c:161
const char *const z_errmsg[10]
Definition: zutil.c:23
#define ABC_NAMESPACE_HEADER_END
Definition: abc_global.h:106
int ZLIB_INTERNAL zmemcmp(const Bytef *s1, const Bytef *s2, uInt len)
Definition: zutil.c:165
ZEXTERN uLong ZEXPORT adler32_combine64 OF((uLong, uLong, z_off_t))
uLong ZEXPORT crc32_combine64(uLong crc1, uLong crc2, z_off64_t len2)
Definition: crc32.c:426
#define ZEXTERN
Definition: zconf.h:319
unsigned char uch
Definition: zutil.h:39
unsigned long ulg
Definition: zutil.h:43
#define FAR
Definition: zconf.h:329
uch FAR uchf
Definition: zutil.h:40
#define ZEXPORT
Definition: zconf.h:322
voidpf ZLIB_INTERNAL zcalloc(voidpf opaque, unsigned items, unsigned size)
Definition: zutil.c:300
#define ZLIB_INTERNAL
Definition: zutil.h:19
unsigned int uInt
Definition: zconf.h:335
void ZLIB_INTERNAL zcfree(voidpf opaque, voidpf ptr)
Definition: zutil.c:307