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d4286ec4 | 1 | /* zutil.h -- internal interface and configuration of the compression library |
be59d0ec | 2 | * Copyright (C) 1995-2002 Jean-loup Gailly. |
d4286ec4 PM |
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 _Z_UTIL_H | |
14 | #define _Z_UTIL_H | |
15 | ||
5914bf15 | 16 | #include "../rsync.h" |
d4286ec4 PM |
17 | #include "zlib.h" |
18 | ||
5914bf15 | 19 | #if 0 |
d4286ec4 PM |
20 | #ifdef STDC |
21 | # include <stddef.h> | |
22 | # include <string.h> | |
23 | # include <stdlib.h> | |
24 | #endif | |
25 | #ifdef NO_ERRNO_H | |
26 | extern int errno; | |
27 | #else | |
28 | # include <errno.h> | |
29 | #endif | |
5914bf15 | 30 | #endif |
d4286ec4 PM |
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 *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 | #ifdef MSDOS | |
80 | # define OS_CODE 0x00 | |
06b91d8e | 81 | # if defined(__TURBOC__) || defined(__BORLANDC__) |
d4286ec4 PM |
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 OS2 | |
95 | # define OS_CODE 0x06 | |
96 | #endif | |
97 | ||
98 | #ifdef WIN32 /* Window 95 & Windows NT */ | |
99 | # define OS_CODE 0x0b | |
100 | #endif | |
101 | ||
102 | #if defined(VAXC) || defined(VMS) | |
103 | # define OS_CODE 0x02 | |
104 | # define F_OPEN(name, mode) \ | |
105 | fopen((name), (mode), "mbc=60", "ctx=stm", "rfm=fix", "mrs=512") | |
106 | #endif | |
107 | ||
108 | #ifdef AMIGA | |
109 | # define OS_CODE 0x01 | |
110 | #endif | |
111 | ||
112 | #if defined(ATARI) || defined(atarist) | |
113 | # define OS_CODE 0x05 | |
114 | #endif | |
115 | ||
116 | #if defined(MACOS) || defined(TARGET_OS_MAC) | |
117 | # define OS_CODE 0x07 | |
06b91d8e MP |
118 | # if defined(__MWERKS__) && __dest_os != __be_os && __dest_os != __win32_os |
119 | # include <unix.h> /* for fdopen */ | |
120 | # else | |
121 | # ifndef fdopen | |
122 | # define fdopen(fd,mode) NULL /* No fdopen() */ | |
123 | # endif | |
d4286ec4 PM |
124 | # endif |
125 | #endif | |
126 | ||
127 | #ifdef __50SERIES /* Prime/PRIMOS */ | |
128 | # define OS_CODE 0x0F | |
129 | #endif | |
130 | ||
131 | #ifdef TOPS20 | |
132 | # define OS_CODE 0x0a | |
133 | #endif | |
134 | ||
135 | #if defined(_BEOS_) || defined(RISCOS) | |
136 | # define fdopen(fd,mode) NULL /* No fdopen() */ | |
137 | #endif | |
138 | ||
06b91d8e | 139 | #if (defined(_MSC_VER) && (_MSC_VER > 600)) |
d4286ec4 PM |
140 | # define fdopen(fd,type) _fdopen(fd,type) |
141 | #endif | |
142 | ||
143 | ||
144 | /* Common defaults */ | |
145 | ||
146 | #ifndef OS_CODE | |
147 | # define OS_CODE 0x03 /* assume Unix */ | |
148 | #endif | |
149 | ||
150 | #ifndef F_OPEN | |
151 | # define F_OPEN(name, mode) fopen((name), (mode)) | |
152 | #endif | |
153 | ||
154 | /* functions */ | |
155 | ||
156 | #ifdef HAVE_STRERROR | |
157 | extern char *strerror OF((int)); | |
158 | # define zstrerror(errnum) strerror(errnum) | |
159 | #else | |
160 | # define zstrerror(errnum) "" | |
161 | #endif | |
162 | ||
163 | #if defined(pyr) | |
164 | # define NO_MEMCPY | |
165 | #endif | |
166 | #if defined(SMALL_MEDIUM) && !defined(_MSC_VER) && !defined(__SC__) | |
167 | /* Use our own functions for small and medium model with MSC <= 5.0. | |
168 | * You may have to use the same strategy for Borland C (untested). | |
169 | * The __SC__ check is for Symantec. | |
170 | */ | |
171 | # define NO_MEMCPY | |
172 | #endif | |
173 | #if defined(STDC) && !defined(HAVE_MEMCPY) && !defined(NO_MEMCPY) | |
174 | # define HAVE_MEMCPY | |
175 | #endif | |
176 | #ifdef HAVE_MEMCPY | |
177 | # ifdef SMALL_MEDIUM /* MSDOS small or medium model */ | |
178 | # define zmemcpy _fmemcpy | |
179 | # define zmemcmp _fmemcmp | |
180 | # define zmemzero(dest, len) _fmemset(dest, 0, len) | |
181 | # else | |
182 | # define zmemcpy memcpy | |
183 | # define zmemcmp memcmp | |
184 | # define zmemzero(dest, len) memset(dest, 0, len) | |
185 | # endif | |
186 | #else | |
06b91d8e MP |
187 | extern void zmemcpy OF((Bytef* dest, const Bytef* source, uInt len)); |
188 | extern int zmemcmp OF((const Bytef* s1, const Bytef* s2, uInt len)); | |
d4286ec4 PM |
189 | extern void zmemzero OF((Bytef* dest, uInt len)); |
190 | #endif | |
191 | ||
192 | /* Diagnostic functions */ | |
193 | #ifdef DEBUG | |
194 | # include <stdio.h> | |
195 | extern int z_verbose; | |
196 | extern void z_error OF((char *m)); | |
197 | # define Assert(cond,msg) {if(!(cond)) z_error(msg);} | |
198 | # define Trace(x) {if (z_verbose>=0) fprintf x ;} | |
199 | # define Tracev(x) {if (z_verbose>0) fprintf x ;} | |
200 | # define Tracevv(x) {if (z_verbose>1) fprintf x ;} | |
201 | # define Tracec(c,x) {if (z_verbose>0 && (c)) fprintf x ;} | |
202 | # define Tracecv(c,x) {if (z_verbose>1 && (c)) fprintf x ;} | |
203 | #else | |
204 | # define Assert(cond,msg) | |
205 | # define Trace(x) | |
206 | # define Tracev(x) | |
207 | # define Tracevv(x) | |
208 | # define Tracec(c,x) | |
209 | # define Tracecv(c,x) | |
210 | #endif | |
211 | ||
212 | ||
213 | typedef uLong (ZEXPORT *check_func) OF((uLong check, const Bytef *buf, | |
214 | uInt len)); | |
215 | voidpf zcalloc OF((voidpf opaque, unsigned items, unsigned size)); | |
216 | void zcfree OF((voidpf opaque, voidpf ptr)); | |
217 | ||
218 | #define ZALLOC(strm, items, size) \ | |
219 | (*((strm)->zalloc))((strm)->opaque, (items), (size)) | |
0bc46751 | 220 | #define ZFREE(strm, addr) (*((strm)->zfree))((strm)->opaque, (voidpf)(addr)) |
d4286ec4 PM |
221 | #define TRY_FREE(s, p) {if (p) ZFREE(s, p);} |
222 | ||
223 | #endif /* _Z_UTIL_H */ |