source: rtems/cpukit/zlib/zutil.h @ 6121dc77

4.115
Last change on this file since 6121dc77 was 6121dc77, checked in by Joel Sherrill <joel.sherrill@…>, on 03/18/11 at 10:11:29

2010-03-22 Joel Sherrill <joel.sherrill@…>

  • ChangeLog?.zlib, FAQ, Makefile.am, README, adler32.c, compress.c, crc32.c, deflate.c, deflate.h, infback.c, inffast.c, inflate.c, inflate.h, inftrees.c, inftrees.h, trees.c, uncompr.c, zconf.h, zlib.3, zlib.h, zutil.c, zutil.h: Update to zlib 1.2.4.
  • gzclose.c, gzguts.h, gzlib.c, gzread.c, gzwrite.c, doc/algorithm.txt: New files.
  • algorithm.txt, gzio.c: Removed.
  • Property mode set to 100644
File size: 7.0 KB
Line 
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#define ZLIB_INTERNAL
17#include "zlib.h"
18
19#ifdef STDC
20#  if !(defined(_WIN32_WCE) && defined(_MSC_VER))
21#    include <stddef.h>
22#  endif
23#  include <string.h>
24#  include <stdlib.h>
25#endif
26
27#if defined(UNDER_CE) && defined(NO_ERRNO_H)
28#  define zseterrno(ERR) SetLastError((DWORD)(ERR))
29#  define zerrno() ((int)GetLastError())
30#else
31#  ifdef NO_ERRNO_H
32     extern int errno;
33#  else
34#    include <errno.h>
35#  endif
36#  define zseterrno(ERR) do { errno = (ERR); } while (0)
37#  define zerrno() errno
38#endif
39
40#ifndef local
41#  define local static
42#endif
43/* compile with -Dlocal if your debugger can't find static symbols */
44
45typedef unsigned char  uch;
46typedef uch FAR uchf;
47typedef unsigned short ush;
48typedef ush FAR ushf;
49typedef unsigned long  ulg;
50
51extern const char * const z_errmsg[10]; /* indexed by 2-zlib_error */
52/* (size given to avoid silly warnings with Visual C++) */
53
54#define ERR_MSG(err) z_errmsg[Z_NEED_DICT-(err)]
55
56#define ERR_RETURN(strm,err) \
57  return (strm->msg = (char*)ERR_MSG(err), (err))
58/* To be used only when the state is known to be valid */
59
60        /* common constants */
61
62#ifndef DEF_WBITS
63#  define DEF_WBITS MAX_WBITS
64#endif
65/* default windowBits for decompression. MAX_WBITS is for compression only */
66
67#if MAX_MEM_LEVEL >= 8
68#  define DEF_MEM_LEVEL 8
69#else
70#  define DEF_MEM_LEVEL  MAX_MEM_LEVEL
71#endif
72/* default memLevel */
73
74#define STORED_BLOCK 0
75#define STATIC_TREES 1
76#define DYN_TREES    2
77/* The three kinds of block type */
78
79#define MIN_MATCH  3
80#define MAX_MATCH  258
81/* The minimum and maximum match lengths */
82
83#define PRESET_DICT 0x20 /* preset dictionary flag in zlib header */
84
85        /* target dependencies */
86
87#if defined(MSDOS) || (defined(WINDOWS) && !defined(WIN32))
88#  define OS_CODE  0x00
89#  if defined(__TURBOC__) || defined(__BORLANDC__)
90#    if (__STDC__ == 1) && (defined(__LARGE__) || defined(__COMPACT__))
91       /* Allow compilation with ANSI keywords only enabled */
92       void _Cdecl farfree( void *block );
93       void *_Cdecl farmalloc( unsigned long nbytes );
94#    else
95#      include <alloc.h>
96#    endif
97#  else /* MSC or DJGPP */
98#    include <malloc.h>
99#  endif
100#endif
101
102#ifdef AMIGA
103#  define OS_CODE  0x01
104#endif
105
106#if defined(VAXC) || defined(VMS)
107#  define OS_CODE  0x02
108#  define F_OPEN(name, mode) \
109     fopen((name), (mode), "mbc=60", "ctx=stm", "rfm=fix", "mrs=512")
110#endif
111
112#if defined(ATARI) || defined(atarist)
113#  define OS_CODE  0x05
114#endif
115
116#ifdef OS2
117#  define OS_CODE  0x06
118#  ifdef M_I86
119#    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
126#    include <unix.h> /* for fdopen */
127#  else
128#    ifndef fdopen
129#      define fdopen(fd,mode) NULL /* No fdopen() */
130#    endif
131#  endif
132#endif
133
134#ifdef TOPS20
135#  define OS_CODE  0x0a
136#endif
137
138#ifdef WIN32
139#  ifndef __CYGWIN__  /* Cygwin is Unix, not Win32 */
140#    define OS_CODE  0x0b
141#  endif
142#endif
143
144#ifdef __50SERIES /* Prime/PRIMOS */
145#  define OS_CODE  0x0f
146#endif
147
148#if defined(_BEOS_) || defined(RISCOS)
149#  define fdopen(fd,mode) NULL /* No fdopen() */
150#endif
151
152#if (defined(_MSC_VER) && (_MSC_VER > 600)) && !defined __INTERIX
153#  if defined(_WIN32_WCE)
154#    define fdopen(fd,mode) NULL /* No fdopen() */
155#    ifndef _PTRDIFF_T_DEFINED
156       typedef int ptrdiff_t;
157#      define _PTRDIFF_T_DEFINED
158#    endif
159#  else
160#    define fdopen(fd,type)  _fdopen(fd,type)
161#  endif
162#endif
163
164#if defined(__BORLANDC__)
165  #pragma warn -8004
166  #pragma warn -8008
167  #pragma warn -8066
168#endif
169
170#ifdef _LARGEFILE64_SOURCE
171#  define z_off64_t off64_t
172#else
173#  define z_off64_t z_off_t
174#endif
175
176        /* common defaults */
177
178#ifndef OS_CODE
179#  define OS_CODE  0x03  /* assume Unix */
180#endif
181
182#ifndef F_OPEN
183#  define F_OPEN(name, mode) fopen((name), (mode))
184#endif
185
186#ifdef _LARGEFILE64_SOURCE
187#  define F_OPEN64(name, mode) fopen64((name), (mode))
188#else
189#  define F_OPEN64(name, mode) fopen((name), (mode))
190#endif
191
192         /* functions */
193
194#if defined(STDC99) || (defined(__TURBOC__) && __TURBOC__ >= 0x550)
195#  ifndef HAVE_VSNPRINTF
196#    define HAVE_VSNPRINTF
197#  endif
198#endif
199#if defined(__CYGWIN__)
200#  ifndef HAVE_VSNPRINTF
201#    define HAVE_VSNPRINTF
202#  endif
203#endif
204#ifndef HAVE_VSNPRINTF
205#  ifdef MSDOS
206     /* vsnprintf may exist on some MS-DOS compilers (DJGPP?),
207        but for now we just assume it doesn't. */
208#    define NO_vsnprintf
209#  endif
210#  ifdef __TURBOC__
211#    define NO_vsnprintf
212#  endif
213#  ifdef WIN32
214     /* In Win32, vsnprintf is available as the "non-ANSI" _vsnprintf. */
215#    if !defined(vsnprintf) && !defined(NO_vsnprintf)
216#      if !defined(_MSC_VER) || ( defined(_MSC_VER) && _MSC_VER < 1500 )
217#         define vsnprintf _vsnprintf
218#      endif
219#    endif
220#  endif
221#  ifdef __SASC
222#    define NO_vsnprintf
223#  endif
224#endif
225#ifdef VMS
226#  define NO_vsnprintf
227#endif
228
229#if defined(pyr)
230#  define NO_MEMCPY
231#endif
232#if defined(SMALL_MEDIUM) && !defined(_MSC_VER) && !defined(__SC__)
233 /* Use our own functions for small and medium model with MSC <= 5.0.
234  * You may have to use the same strategy for Borland C (untested).
235  * The __SC__ check is for Symantec.
236  */
237#  define NO_MEMCPY
238#endif
239#if defined(STDC) && !defined(HAVE_MEMCPY) && !defined(NO_MEMCPY)
240#  define HAVE_MEMCPY
241#endif
242#ifdef HAVE_MEMCPY
243#  ifdef SMALL_MEDIUM /* MSDOS small or medium model */
244#    define zmemcpy _fmemcpy
245#    define zmemcmp _fmemcmp
246#    define zmemzero(dest, len) _fmemset(dest, 0, len)
247#  else
248#    define zmemcpy memcpy
249#    define zmemcmp memcmp
250#    define zmemzero(dest, len) memset(dest, 0, len)
251#  endif
252#else
253   extern void zmemcpy  OF((Bytef* dest, const Bytef* source, uInt len));
254   extern int  zmemcmp  OF((const Bytef* s1, const Bytef* s2, uInt len));
255   extern void zmemzero OF((Bytef* dest, uInt len));
256#endif
257
258/* Diagnostic functions */
259#ifdef DEBUG
260#  include <stdio.h>
261   extern int z_verbose;
262   extern void z_error    OF((char *m));
263#  define Assert(cond,msg) {if(!(cond)) z_error(msg);}
264#  define Trace(x) {if (z_verbose>=0) fprintf x ;}
265#  define Tracev(x) {if (z_verbose>0) fprintf x ;}
266#  define Tracevv(x) {if (z_verbose>1) fprintf x ;}
267#  define Tracec(c,x) {if (z_verbose>0 && (c)) fprintf x ;}
268#  define Tracecv(c,x) {if (z_verbose>1 && (c)) fprintf x ;}
269#else
270#  define Assert(cond,msg)
271#  define Trace(x)
272#  define Tracev(x)
273#  define Tracevv(x)
274#  define Tracec(c,x)
275#  define Tracecv(c,x)
276#endif
277
278
279voidpf zcalloc OF((voidpf opaque, unsigned items, unsigned size));
280void   zcfree  OF((voidpf opaque, voidpf ptr));
281
282#define ZALLOC(strm, items, size) \
283           (*((strm)->zalloc))((strm)->opaque, (items), (size))
284#define ZFREE(strm, addr)  (*((strm)->zfree))((strm)->opaque, (voidpf)(addr))
285#define TRY_FREE(s, p) {if (p) ZFREE(s, p);}
286
287#endif /* ZUTIL_H */
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