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zutil.h
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#ifndef ZUTIL_H
12#define ZUTIL_H
13
14#if ((__GNUC__-0) * 10 + __GNUC_MINOR__-0 >= 33) && !defined(NO_VIZ)
15# define ZLIB_INTERNAL __attribute__((visibility ("hidden")))
16#else
17# define ZLIB_INTERNAL
18#endif
19
20#include "zlib.h"
21
22#ifdef STDC
23# if !(defined(_WIN32_WCE) && defined(_MSC_VER))
24# include <stddef.h>
25# endif
26# include <string.h>
27# include <stdlib.h>
28#endif
29
30#ifndef local
31# define local static
32#endif
33/* compile with -Dlocal if your debugger can't find static symbols */
34
35typedef unsigned char uch;
36typedef uch FAR uchf;
37typedef unsigned short ush;
38typedef ush FAR ushf;
39typedef unsigned long ulg;
40
41extern const char * const z_errmsg[10]; /* indexed by 2-zlib_error */
42/* (size given to avoid silly warnings with Visual C++) */
43
44#define ERR_MSG(err) z_errmsg[Z_NEED_DICT-(err)]
45
46#define ERR_RETURN(strm,err) \
47 return (strm->msg = (char*)ERR_MSG(err), (err))
48/* To be used only when the state is known to be valid */
49
50 /* common constants */
51
52#ifndef DEF_WBITS
53# define DEF_WBITS MAX_WBITS
54#endif
55/* default windowBits for decompression. MAX_WBITS is for compression only */
56
57#if MAX_MEM_LEVEL >= 8
58# define DEF_MEM_LEVEL 8
59#else
60# define DEF_MEM_LEVEL MAX_MEM_LEVEL
61#endif
62/* default memLevel */
63
64#define STORED_BLOCK 0
65#define STATIC_TREES 1
66#define DYN_TREES 2
67/* The three kinds of block type */
68
69#define MIN_MATCH 3
70#define MAX_MATCH 258
71/* The minimum and maximum match lengths */
72
73#define PRESET_DICT 0x20 /* preset dictionary flag in zlib header */
74
75 /* target dependencies */
76
77#if defined(MSDOS) || (defined(WINDOWS) && !defined(WIN32))
78# define OS_CODE 0x00
79# if defined(__TURBOC__) || defined(__BORLANDC__)
80# if (__STDC__ == 1) && (defined(__LARGE__) || defined(__COMPACT__))
81 /* Allow compilation with ANSI keywords only enabled */
82 void _Cdecl farfree( void *block );
83 void *_Cdecl farmalloc( unsigned long nbytes );
84# else
85# include <alloc.h>
86# endif
87# else /* MSC or DJGPP */
88# include <malloc.h>
89# endif
90#endif
91
92#ifdef AMIGA
93# define OS_CODE 0x01
94#endif
95
96#if defined(VAXC) || defined(VMS)
97# define OS_CODE 0x02
98# define F_OPEN(name, mode) \
99 fopen((name), (mode), "mbc=60", "ctx=stm", "rfm=fix", "mrs=512")
100#endif
101
102#if defined(ATARI) || defined(atarist)
103# define OS_CODE 0x05
104#endif
105
106#ifdef OS2
107# define OS_CODE 0x06
108# ifdef M_I86
109# include <malloc.h>
110# endif
111#endif
112
113#if defined(MACOS) || defined(TARGET_OS_MAC)
114# define OS_CODE 0x07
115# if defined(__MWERKS__) && __dest_os != __be_os && __dest_os != __win32_os
116# include <unix.h> /* for fdopen */
117# else
118# ifndef fdopen
119# define fdopen(fd,mode) NULL /* No fdopen() */
120# endif
121# endif
122#endif
123
124#ifdef TOPS20
125# define OS_CODE 0x0a
126#endif
127
128#ifdef WIN32
129# ifndef __CYGWIN__ /* Cygwin is Unix, not Win32 */
130# define OS_CODE 0x0b
131# endif
132#endif
133
134#ifdef __50SERIES /* Prime/PRIMOS */
135# define OS_CODE 0x0f
136#endif
137
138#if defined(_BEOS_) || defined(RISCOS)
139# define fdopen(fd,mode) NULL /* No fdopen() */
140#endif
141
142#if (defined(_MSC_VER) && (_MSC_VER > 600)) && !defined __INTERIX
143# if defined(_WIN32_WCE)
144# define fdopen(fd,mode) NULL /* No fdopen() */
145# ifndef _PTRDIFF_T_DEFINED
146 typedef int ptrdiff_t;
147# define _PTRDIFF_T_DEFINED
148# endif
149# else
150# define fdopen(fd,type) _fdopen(fd,type)
151# endif
152#endif
153
154#if defined(__BORLANDC__)
155 #pragma warn -8004
156 #pragma warn -8008
157 #pragma warn -8066
158#endif
159
160/* provide prototypes for these when building zlib without LFS */
161#if !defined(_LARGEFILE64_SOURCE) || _LFS64_LARGEFILE-0 == 0
162 ZEXTERN uLong ZEXPORT adler32_combine64 OF((uLong, uLong, z_off_t));
163 ZEXTERN uLong ZEXPORT crc32_combine64 OF((uLong, uLong, z_off_t));
164#endif
165
166 /* common defaults */
167
168#ifndef OS_CODE
169# define OS_CODE 0x03 /* assume Unix */
170#endif
171
172#ifndef F_OPEN
173# define F_OPEN(name, mode) fopen((name), (mode))
174#endif
175
176 /* functions */
177
178#if defined(STDC99) || (defined(__TURBOC__) && __TURBOC__ >= 0x550)
179# ifndef HAVE_VSNPRINTF
180# define HAVE_VSNPRINTF
181# endif
182#endif
183#if defined(__CYGWIN__)
184# ifndef HAVE_VSNPRINTF
185# define HAVE_VSNPRINTF
186# endif
187#endif
188#ifndef HAVE_VSNPRINTF
189# ifdef MSDOS
190 /* vsnprintf may exist on some MS-DOS compilers (DJGPP?),
191 but for now we just assume it doesn't. */
192# define NO_vsnprintf
193# endif
194# ifdef __TURBOC__
195# define NO_vsnprintf
196# endif
197# ifdef WIN32
198 /* In Win32, vsnprintf is available as the "non-ANSI" _vsnprintf. */
199# if !defined(vsnprintf) && !defined(NO_vsnprintf)
200# if !defined(_MSC_VER) || ( defined(_MSC_VER) && _MSC_VER < 1500 )
201# define vsnprintf _vsnprintf
202# endif
203# endif
204# endif
205# ifdef __SASC
206# define NO_vsnprintf
207# endif
208#endif
209#ifdef VMS
210# define NO_vsnprintf
211#endif
212
213#if defined(pyr)
214# define NO_MEMCPY
215#endif
216#if defined(SMALL_MEDIUM) && !defined(_MSC_VER) && !defined(__SC__)
217 /* Use our own functions for small and medium model with MSC <= 5.0.
218 * You may have to use the same strategy for Borland C (untested).
219 * The __SC__ check is for Symantec.
220 */
221# define NO_MEMCPY
222#endif
223#if defined(STDC) && !defined(HAVE_MEMCPY) && !defined(NO_MEMCPY)
224# define HAVE_MEMCPY
225#endif
226#ifdef HAVE_MEMCPY
227# ifdef SMALL_MEDIUM /* MSDOS small or medium model */
228# define zmemcpy _fmemcpy
229# define zmemcmp _fmemcmp
230# define zmemzero(dest, len) _fmemset(dest, 0, len)
231# else
232# define zmemcpy memcpy
233# define zmemcmp memcmp
234# define zmemzero(dest, len) memset(dest, 0, len)
235# endif
236#else
237 void ZLIB_INTERNAL zmemcpy OF((Bytef* dest, const Bytef* source, uInt len));
238 int ZLIB_INTERNAL zmemcmp OF((const Bytef* s1, const Bytef* s2, uInt len));
239 void ZLIB_INTERNAL zmemzero OF((Bytef* dest, uInt len));
240#endif
241
242/* Diagnostic functions */
243#ifdef DEBUG
244# include <stdio.h>
245 extern int ZLIB_INTERNAL z_verbose;
246 extern void ZLIB_INTERNAL z_error OF((char *m));
247# define Assert(cond,msg) {if(!(cond)) z_error(msg);}
248# define Trace(x) {if (z_verbose>=0) fprintf x ;}
249# define Tracev(x) {if (z_verbose>0) fprintf x ;}
250# define Tracevv(x) {if (z_verbose>1) fprintf x ;}
251# define Tracec(c,x) {if (z_verbose>0 && (c)) fprintf x ;}
252# define Tracecv(c,x) {if (z_verbose>1 && (c)) fprintf x ;}
253#else
254# define Assert(cond,msg)
255# define Trace(x)
256# define Tracev(x)
257# define Tracevv(x)
258# define Tracec(c,x)
259# define Tracecv(c,x)
260#endif
261
262
263voidpf ZLIB_INTERNAL zcalloc OF((voidpf opaque, unsigned items,
264 unsigned size));
265void ZLIB_INTERNAL zcfree OF((voidpf opaque, voidpf ptr));
266
267#define ZALLOC(strm, items, size) \
268 (*((strm)->zalloc))((strm)->opaque, (items), (size))
269#define ZFREE(strm, addr) (*((strm)->zfree))((strm)->opaque, (voidpf)(addr))
270#define TRY_FREE(s, p) {if (p) ZFREE(s, p);}
271
272#endif /* ZUTIL_H */
opaque
Definition: bootldr.h:42
size
unsigned size
Definition: tte.h:1
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