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1 /* zutil.h -- internal interface and configuration of the compression library | 1 /* zutil.h -- internal interface and configuration of the compression library |
2 * Copyright (C) 1995-2013 Jean-loup Gailly. | 2 * Copyright (C) 1995-2010 Jean-loup Gailly. |
3 * For conditions of distribution and use, see copyright notice in zlib.h | 3 * For conditions of distribution and use, see copyright notice in zlib.h |
4 */ | 4 */ |
5 | 5 |
6 /* WARNING: this file should *not* be used by applications. It is | 6 /* WARNING: this file should *not* be used by applications. It is |
7 part of the implementation of the compression library and is | 7 part of the implementation of the compression library and is |
8 subject to change. Applications should only use zlib.h. | 8 subject to change. Applications should only use zlib.h. |
9 */ | 9 */ |
10 | 10 |
11 /* @(#) $Id$ */ | 11 /* @(#) $Id$ */ |
12 | 12 |
13 #ifndef ZUTIL_H | 13 #ifndef ZUTIL_H |
14 #define ZUTIL_H | 14 #define ZUTIL_H |
15 | 15 |
16 #ifdef HAVE_HIDDEN | 16 #if ((__GNUC__-0) * 10 + __GNUC_MINOR__-0 >= 33) && !defined(NO_VIZ) |
17 # define ZLIB_INTERNAL __attribute__((visibility ("hidden"))) | 17 # define ZLIB_INTERNAL __attribute__((visibility ("hidden"))) |
18 #else | 18 #else |
19 # define ZLIB_INTERNAL | 19 # define ZLIB_INTERNAL |
20 #endif | 20 #endif |
21 | 21 |
22 #include "zlib.h" | 22 #include "zlib.h" |
23 | 23 |
24 #if defined(STDC) && !defined(Z_SOLO) | 24 #ifdef STDC |
25 # if !(defined(_WIN32_WCE) && defined(_MSC_VER)) | 25 # if !(defined(_WIN32_WCE) && defined(_MSC_VER)) |
26 # include <stddef.h> | 26 # include <stddef.h> |
27 # endif | 27 # endif |
28 # include <string.h> | 28 # include <string.h> |
29 # include <stdlib.h> | 29 # include <stdlib.h> |
30 #endif | 30 #endif |
31 #ifdef NO_ERRNO_H | 31 #ifdef NO_ERRNO_H |
32 # ifdef _WIN32_WCE | 32 # ifdef _WIN32_WCE |
33 /* The Microsoft C Run-Time Library for Windows CE doesn't have | 33 /* The Microsoft C Run-Time Library for Windows CE doesn't have |
34 * errno. We define it as a global variable to simplify porting. | 34 * errno. We define it as a global variable to simplify porting. |
35 * Its value is always 0 and should not be used. We rename it to | 35 * Its value is always 0 and should not be used. We rename it to |
36 * avoid conflict with other libraries that use the same workaround. | 36 * avoid conflict with other libraries that use the same workaround. |
37 */ | 37 */ |
38 # define errno z_errno | 38 # define errno z_errno |
39 # endif | 39 # endif |
40 extern int errno; | 40 extern int errno; |
41 #else | 41 #else |
42 # ifndef _WIN32_WCE | 42 # ifndef _WIN32_WCE |
43 # include <errno.h> | 43 # include <errno.h> |
44 # endif | 44 # endif |
45 #endif | 45 #endif |
46 | 46 |
47 #ifdef Z_SOLO | |
48 typedef long ptrdiff_t; /* guess -- will be caught if guess is wrong */ | |
49 #endif | |
50 | |
51 #ifndef local | 47 #ifndef local |
52 # define local static | 48 # define local static |
53 #endif | 49 #endif |
54 /* compile with -Dlocal if your debugger can't find static symbols */ | 50 /* compile with -Dlocal if your debugger can't find static symbols */ |
55 | 51 |
56 typedef unsigned char uch; | 52 typedef unsigned char uch; |
57 typedef uch FAR uchf; | 53 typedef uch FAR uchf; |
58 typedef unsigned short ush; | 54 typedef unsigned short ush; |
59 typedef ush FAR ushf; | 55 typedef ush FAR ushf; |
60 typedef unsigned long ulg; | 56 typedef unsigned long ulg; |
61 | 57 |
62 extern z_const char * const z_errmsg[10]; /* indexed by 2-zlib_error */ | 58 extern const char * const z_errmsg[10]; /* indexed by 2-zlib_error */ |
63 /* (size given to avoid silly warnings with Visual C++) */ | 59 /* (size given to avoid silly warnings with Visual C++) */ |
64 | 60 |
65 #define ERR_MSG(err) z_errmsg[Z_NEED_DICT-(err)] | 61 #define ERR_MSG(err) z_errmsg[Z_NEED_DICT-(err)] |
66 | 62 |
67 #define ERR_RETURN(strm,err) \ | 63 #define ERR_RETURN(strm,err) \ |
68 return (strm->msg = ERR_MSG(err), (err)) | 64 return (strm->msg = (char*)ERR_MSG(err), (err)) |
69 /* To be used only when the state is known to be valid */ | 65 /* To be used only when the state is known to be valid */ |
70 | 66 |
71 /* common constants */ | 67 /* common constants */ |
72 | 68 |
73 #ifndef DEF_WBITS | 69 #ifndef DEF_WBITS |
74 # define DEF_WBITS MAX_WBITS | 70 # define DEF_WBITS MAX_WBITS |
75 #endif | 71 #endif |
76 /* default windowBits for decompression. MAX_WBITS is for compression only */ | 72 /* default windowBits for decompression. MAX_WBITS is for compression only */ |
77 | 73 |
78 #if MAX_MEM_LEVEL >= 8 | 74 #if MAX_MEM_LEVEL >= 8 |
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90 #define MIN_MATCH 3 | 86 #define MIN_MATCH 3 |
91 #define MAX_MATCH 258 | 87 #define MAX_MATCH 258 |
92 /* The minimum and maximum match lengths */ | 88 /* The minimum and maximum match lengths */ |
93 | 89 |
94 #define PRESET_DICT 0x20 /* preset dictionary flag in zlib header */ | 90 #define PRESET_DICT 0x20 /* preset dictionary flag in zlib header */ |
95 | 91 |
96 /* target dependencies */ | 92 /* target dependencies */ |
97 | 93 |
98 #if defined(MSDOS) || (defined(WINDOWS) && !defined(WIN32)) | 94 #if defined(MSDOS) || (defined(WINDOWS) && !defined(WIN32)) |
99 # define OS_CODE 0x00 | 95 # define OS_CODE 0x00 |
100 # ifndef Z_SOLO | 96 # if defined(__TURBOC__) || defined(__BORLANDC__) |
101 # if defined(__TURBOC__) || defined(__BORLANDC__) | 97 # if (__STDC__ == 1) && (defined(__LARGE__) || defined(__COMPACT__)) |
102 # if (__STDC__ == 1) && (defined(__LARGE__) || defined(__COMPACT__)) | 98 /* Allow compilation with ANSI keywords only enabled */ |
103 /* Allow compilation with ANSI keywords only enabled */ | 99 void _Cdecl farfree( void *block ); |
104 void _Cdecl farfree( void *block ); | 100 void *_Cdecl farmalloc( unsigned long nbytes ); |
105 void *_Cdecl farmalloc( unsigned long nbytes ); | 101 # else |
106 # else | 102 # include <alloc.h> |
107 # include <alloc.h> | |
108 # endif | |
109 # else /* MSC or DJGPP */ | |
110 # include <malloc.h> | |
111 # endif | 103 # endif |
| 104 # else /* MSC or DJGPP */ |
| 105 # include <malloc.h> |
112 # endif | 106 # endif |
113 #endif | 107 #endif |
114 | 108 |
115 #ifdef AMIGA | 109 #ifdef AMIGA |
116 # define OS_CODE 0x01 | 110 # define OS_CODE 0x01 |
117 #endif | 111 #endif |
118 | 112 |
119 #if defined(VAXC) || defined(VMS) | 113 #if defined(VAXC) || defined(VMS) |
120 # define OS_CODE 0x02 | 114 # define OS_CODE 0x02 |
121 # define F_OPEN(name, mode) \ | 115 # define F_OPEN(name, mode) \ |
122 fopen((name), (mode), "mbc=60", "ctx=stm", "rfm=fix", "mrs=512") | 116 fopen((name), (mode), "mbc=60", "ctx=stm", "rfm=fix", "mrs=512") |
123 #endif | 117 #endif |
124 | 118 |
125 #if defined(ATARI) || defined(atarist) | 119 #if defined(ATARI) || defined(atarist) |
126 # define OS_CODE 0x05 | 120 # define OS_CODE 0x05 |
127 #endif | 121 #endif |
128 | 122 |
129 #ifdef OS2 | 123 #ifdef OS2 |
130 # define OS_CODE 0x06 | 124 # define OS_CODE 0x06 |
131 # if defined(M_I86) && !defined(Z_SOLO) | 125 # ifdef M_I86 |
132 # include <malloc.h> | 126 # include <malloc.h> |
133 # endif | 127 # endif |
134 #endif | 128 #endif |
135 | 129 |
136 #if defined(MACOS) || defined(TARGET_OS_MAC) | 130 #if defined(MACOS) || defined(TARGET_OS_MAC) |
137 # define OS_CODE 0x07 | 131 # define OS_CODE 0x07 |
138 # ifndef Z_SOLO | 132 # if defined(__MWERKS__) && __dest_os != __be_os && __dest_os != __win32_os |
139 # if defined(__MWERKS__) && __dest_os != __be_os && __dest_os != __win32_os | 133 # include <unix.h> /* for fdopen */ |
140 # include <unix.h> /* for fdopen */ | 134 # else |
141 # else | 135 # ifndef fdopen |
142 # ifndef fdopen | 136 # define fdopen(fd,mode) NULL /* No fdopen() */ |
143 # define fdopen(fd,mode) NULL /* No fdopen() */ | |
144 # endif | |
145 # endif | 137 # endif |
146 # endif | 138 # endif |
147 #endif | 139 #endif |
148 | 140 |
149 #ifdef TOPS20 | 141 #ifdef TOPS20 |
150 # define OS_CODE 0x0a | 142 # define OS_CODE 0x0a |
151 #endif | 143 #endif |
152 | 144 |
153 #ifdef _MSC_VER | 145 #ifdef _MSC_VER |
154 #define zalign(x) __declspec(align(x)) | 146 #define zalign(x) __declspec(align(x)) |
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175 # define fdopen(fd,mode) NULL /* No fdopen() */ | 167 # define fdopen(fd,mode) NULL /* No fdopen() */ |
176 # ifndef _PTRDIFF_T_DEFINED | 168 # ifndef _PTRDIFF_T_DEFINED |
177 typedef int ptrdiff_t; | 169 typedef int ptrdiff_t; |
178 # define _PTRDIFF_T_DEFINED | 170 # define _PTRDIFF_T_DEFINED |
179 # endif | 171 # endif |
180 # else | 172 # else |
181 # define fdopen(fd,type) _fdopen(fd,type) | 173 # define fdopen(fd,type) _fdopen(fd,type) |
182 # endif | 174 # endif |
183 #endif | 175 #endif |
184 | 176 |
185 #if defined(__BORLANDC__) && !defined(MSDOS) | 177 #if defined(__BORLANDC__) |
186 #pragma warn -8004 | 178 #pragma warn -8004 |
187 #pragma warn -8008 | 179 #pragma warn -8008 |
188 #pragma warn -8066 | 180 #pragma warn -8066 |
189 #endif | 181 #endif |
190 | 182 |
191 /* provide prototypes for these when building zlib without LFS */ | 183 /* provide prototypes for these when building zlib without LFS */ |
192 #if !defined(_WIN32) && \ | 184 #if !defined(_LARGEFILE64_SOURCE) || _LFS64_LARGEFILE-0 == 0 |
193 (!defined(_LARGEFILE64_SOURCE) || _LFS64_LARGEFILE-0 == 0) | |
194 ZEXTERN uLong ZEXPORT adler32_combine64 OF((uLong, uLong, z_off_t)); | 185 ZEXTERN uLong ZEXPORT adler32_combine64 OF((uLong, uLong, z_off_t)); |
195 ZEXTERN uLong ZEXPORT crc32_combine64 OF((uLong, uLong, z_off_t)); | 186 ZEXTERN uLong ZEXPORT crc32_combine64 OF((uLong, uLong, z_off_t)); |
196 #endif | 187 #endif |
197 | 188 |
198 /* common defaults */ | 189 /* common defaults */ |
199 | 190 |
200 #ifndef OS_CODE | 191 #ifndef OS_CODE |
201 # define OS_CODE 0x03 /* assume Unix */ | 192 # define OS_CODE 0x03 /* assume Unix */ |
202 #endif | 193 #endif |
203 | 194 |
204 #ifndef F_OPEN | 195 #ifndef F_OPEN |
205 # define F_OPEN(name, mode) fopen((name), (mode)) | 196 # define F_OPEN(name, mode) fopen((name), (mode)) |
206 #endif | 197 #endif |
207 | 198 |
208 /* functions */ | 199 /* functions */ |
209 | 200 |
210 #if defined(pyr) || defined(Z_SOLO) | 201 #if defined(STDC99) || (defined(__TURBOC__) && __TURBOC__ >= 0x550) |
| 202 # ifndef HAVE_VSNPRINTF |
| 203 # define HAVE_VSNPRINTF |
| 204 # endif |
| 205 #endif |
| 206 #if defined(__CYGWIN__) |
| 207 # ifndef HAVE_VSNPRINTF |
| 208 # define HAVE_VSNPRINTF |
| 209 # endif |
| 210 #endif |
| 211 #ifndef HAVE_VSNPRINTF |
| 212 # ifdef MSDOS |
| 213 /* vsnprintf may exist on some MS-DOS compilers (DJGPP?), |
| 214 but for now we just assume it doesn't. */ |
| 215 # define NO_vsnprintf |
| 216 # endif |
| 217 # ifdef __TURBOC__ |
| 218 # define NO_vsnprintf |
| 219 # endif |
| 220 # ifdef WIN32 |
| 221 /* In Win32, vsnprintf is available as the "non-ANSI" _vsnprintf. */ |
| 222 # if !defined(vsnprintf) && !defined(NO_vsnprintf) |
| 223 # if !defined(_MSC_VER) || ( defined(_MSC_VER) && _MSC_VER < 1500 ) |
| 224 # define vsnprintf _vsnprintf |
| 225 # endif |
| 226 # endif |
| 227 # endif |
| 228 # ifdef __SASC |
| 229 # define NO_vsnprintf |
| 230 # endif |
| 231 #endif |
| 232 #ifdef VMS |
| 233 # define NO_vsnprintf |
| 234 #endif |
| 235 |
| 236 #if defined(pyr) |
211 # define NO_MEMCPY | 237 # define NO_MEMCPY |
212 #endif | 238 #endif |
213 #if defined(SMALL_MEDIUM) && !defined(_MSC_VER) && !defined(__SC__) | 239 #if defined(SMALL_MEDIUM) && !defined(_MSC_VER) && !defined(__SC__) |
214 /* Use our own functions for small and medium model with MSC <= 5.0. | 240 /* Use our own functions for small and medium model with MSC <= 5.0. |
215 * You may have to use the same strategy for Borland C (untested). | 241 * You may have to use the same strategy for Borland C (untested). |
216 * The __SC__ check is for Symantec. | 242 * The __SC__ check is for Symantec. |
217 */ | 243 */ |
218 # define NO_MEMCPY | 244 # define NO_MEMCPY |
219 #endif | 245 #endif |
220 #if defined(STDC) && !defined(HAVE_MEMCPY) && !defined(NO_MEMCPY) | 246 #if defined(STDC) && !defined(HAVE_MEMCPY) && !defined(NO_MEMCPY) |
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249 # define Tracecv(c,x) {if (z_verbose>1 && (c)) fprintf x ;} | 275 # define Tracecv(c,x) {if (z_verbose>1 && (c)) fprintf x ;} |
250 #else | 276 #else |
251 # define Assert(cond,msg) | 277 # define Assert(cond,msg) |
252 # define Trace(x) | 278 # define Trace(x) |
253 # define Tracev(x) | 279 # define Tracev(x) |
254 # define Tracevv(x) | 280 # define Tracevv(x) |
255 # define Tracec(c,x) | 281 # define Tracec(c,x) |
256 # define Tracecv(c,x) | 282 # define Tracecv(c,x) |
257 #endif | 283 #endif |
258 | 284 |
259 #ifndef Z_SOLO | 285 |
260 voidpf ZLIB_INTERNAL zcalloc OF((voidpf opaque, unsigned items, | 286 voidpf ZLIB_INTERNAL zcalloc OF((voidpf opaque, unsigned items, |
261 unsigned size)); | 287 unsigned size)); |
262 void ZLIB_INTERNAL zcfree OF((voidpf opaque, voidpf ptr)); | 288 void ZLIB_INTERNAL zcfree OF((voidpf opaque, voidpf ptr)); |
263 #endif | |
264 | 289 |
265 #define ZALLOC(strm, items, size) \ | 290 #define ZALLOC(strm, items, size) \ |
266 (*((strm)->zalloc))((strm)->opaque, (items), (size)) | 291 (*((strm)->zalloc))((strm)->opaque, (items), (size)) |
267 #define ZFREE(strm, addr) (*((strm)->zfree))((strm)->opaque, (voidpf)(addr)) | 292 #define ZFREE(strm, addr) (*((strm)->zfree))((strm)->opaque, (voidpf)(addr)) |
268 #define TRY_FREE(s, p) {if (p) ZFREE(s, p);} | 293 #define TRY_FREE(s, p) {if (p) ZFREE(s, p);} |
269 | 294 |
270 /* Reverse the bytes in a 32-bit value */ | |
271 #define ZSWAP32(q) ((((q) >> 24) & 0xff) + (((q) >> 8) & 0xff00) + \ | |
272 (((q) & 0xff00) << 8) + (((q) & 0xff) << 24)) | |
273 | |
274 #endif /* ZUTIL_H */ | 295 #endif /* ZUTIL_H */ |
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