1
/* zutil.h -- internal interface and configuration of the compression library
2
* Copyright (C) 1995-2002 Jean-loup Gailly.
3
* For conditions of distribution and use, see copyright notice in zlib.h
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.
32
/* compile with -Dlocal if your debugger can't find static symbols */
34
typedef unsigned char uch;
36
typedef unsigned short ush;
38
typedef unsigned long ulg;
41
#define ERR_RETURN(strm,err) \
42
return (strm->msg = (char*)ERR_MSG(err), (err))
43
/* To be used only when the state is known to be valid */
45
/* common constants */
48
# define DEF_WBITS MAX_WBITS
50
/* default windowBits for decompression. MAX_WBITS is for compression only */
52
#if MAX_MEM_LEVEL >= 8
53
# define DEF_MEM_LEVEL 8
55
# define DEF_MEM_LEVEL MAX_MEM_LEVEL
57
/* default memLevel */
59
#define STORED_BLOCK 0
60
#define STATIC_TREES 1
62
/* The three kinds of block type */
66
/* The minimum and maximum match lengths */
68
#define PRESET_DICT 0x20 /* preset dictionary flag in zlib header */
70
/* target dependencies */
74
# if defined(__TURBOC__) || defined(__BORLANDC__)
75
# if(__STDC__ == 1) && (defined(__LARGE__) || defined(__COMPACT__))
76
/* Allow compilation with ANSI keywords only enabled */
77
void _Cdecl farfree( void *block );
78
void *_Cdecl farmalloc( unsigned long nbytes );
82
# else /* MSC or DJGPP */
90
#ifdef WIN32 /* Window 95 & Windows NT */
94
#if defined(VAXC) || defined(VMS)
96
# define F_OPEN(name, mode) \
97
ft_fopen((name), (mode), "mbc=60", "ctx=stm", "rfm=fix", "mrs=512")
101
# define OS_CODE 0x01
104
#if defined(ATARI) || defined(atarist)
105
# define OS_CODE 0x05
108
#if defined(MACOS) || defined(TARGET_OS_MAC)
109
# define OS_CODE 0x07
110
# if defined(__MWERKS__) && __dest_os != __be_os && __dest_os != __win32_os
111
# include <unix.h> /* for fdopen */
114
# define fdopen(fd,mode) NULL /* No fdopen() */
119
#ifdef __50SERIES /* Prime/PRIMOS */
120
# define OS_CODE 0x0F
124
# define OS_CODE 0x0a
127
#if defined(_BEOS_) || defined(RISCOS)
128
# define fdopen(fd,mode) NULL /* No fdopen() */
131
#if (defined(_MSC_VER) && (_MSC_VER > 600))
132
# define fdopen(fd,type) _fdopen(fd,type)
136
/* Common defaults */
139
# define OS_CODE 0x03 /* assume Unix */
143
# define F_OPEN(name, mode) ft_fopen((name), (mode))
149
extern char *strerror OF((int));
150
# define zstrerror(errnum) strerror(errnum)
152
# define zstrerror(errnum) ""
158
#if defined(SMALL_MEDIUM) && !defined(_MSC_VER) && !defined(__SC__)
159
/* Use our own functions for small and medium model with MSC <= 5.0.
160
* You may have to use the same strategy for Borland C (untested).
161
* The __SC__ check is for Symantec.
165
#if defined(STDC) && !defined(HAVE_MEMCPY) && !defined(NO_MEMCPY)
169
# ifdef SMALL_MEDIUM /* MSDOS small or medium model */
170
# define zmemcpy _fmemcpy
171
# define zmemcmp _fmemcmp
172
# define zmemzero(dest, len) _fmemset(dest, 0, len)
174
# define zmemcpy ft_memcpy
175
# define zmemcmp ft_memcmp
176
# define zmemzero(dest, len) ft_memset(dest, 0, len)
179
extern void zmemcpy OF((Bytef* dest, const Bytef* source, uInt len));
180
extern int zmemcmp OF((const Bytef* s1, const Bytef* s2, uInt len));
181
extern void zmemzero OF((Bytef* dest, uInt len));
184
/* Diagnostic functions */
187
extern int z_verbose;
188
extern void z_error OF((char *m));
189
# define Assert(cond,msg) {if(!(cond)) z_error(msg);}
190
# define Trace(x) {if (z_verbose>=0) fprintf x ;}
191
# define Tracev(x) {if (z_verbose>0) fprintf x ;}
192
# define Tracevv(x) {if (z_verbose>1) fprintf x ;}
193
# define Tracec(c,x) {if (z_verbose>0 && (c)) fprintf x ;}
194
# define Tracecv(c,x) {if (z_verbose>1 && (c)) fprintf x ;}
196
# define Assert(cond,msg)
201
# define Tracecv(c,x)
205
typedef uLong (*check_func) OF((uLong check, const Bytef *buf,
207
local voidpf zcalloc OF((voidpf opaque, unsigned items, unsigned size));
208
local void zcfree OF((voidpf opaque, voidpf ptr));
210
#define ZALLOC(strm, items, size) \
211
(*((strm)->zalloc))((strm)->opaque, (items), (size))
212
#define ZFREE(strm, addr) (*((strm)->zfree))((strm)->opaque, (voidpf)(addr))
213
#define TRY_FREE(s, p) {if (p) ZFREE(s, p);}
215
#endif /* _Z_UTIL_H */