1: /* zutil.h -- internal interface and configuration of the compression library
2: * Copyright (C) 1995-2005 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: zutil.h,v 1.1.1.1 2012/02/17 15:09:30 misho Exp $ */
12:
13: #ifndef ZUTIL_H
14: #define ZUTIL_H
15:
16: #define ZLIB_INTERNAL
17: #include "../rsync.h"
18: #include "zlib.h"
19:
20: #if 0
21: #ifdef STDC
22: # ifndef _WIN32_WCE
23: # include <stddef.h>
24: # endif
25: # include <string.h>
26: # include <stdlib.h>
27: #endif
28: #ifdef NO_ERRNO_H
29: # ifdef _WIN32_WCE
30: /* The Microsoft C Run-Time Library for Windows CE doesn't have
31: * errno. We define it as a global variable to simplify porting.
32: * Its value is always 0 and should not be used. We rename it to
33: * avoid conflict with other libraries that use the same workaround.
34: */
35: # define errno z_errno
36: # endif
37: extern int errno;
38: #else
39: # ifndef _WIN32_WCE
40: # include <errno.h>
41: # endif
42: #endif
43: #endif
44:
45: #ifndef local
46: # define local static
47: #endif
48: /* compile with -Dlocal if your debugger can't find static symbols */
49:
50: typedef unsigned char uch;
51: typedef uch FAR uchf;
52: typedef unsigned short ush;
53: typedef ush FAR ushf;
54: typedef unsigned long ulg;
55:
56: extern const char * const z_errmsg[10]; /* indexed by 2-zlib_error */
57: /* (size given to avoid silly warnings with Visual C++) */
58:
59: #define ERR_MSG(err) z_errmsg[Z_NEED_DICT-(err)]
60:
61: #define ERR_RETURN(strm,err) \
62: return (strm->msg = (char*)ERR_MSG(err), (err))
63: /* To be used only when the state is known to be valid */
64:
65: /* common constants */
66:
67: #ifndef DEF_WBITS
68: # define DEF_WBITS MAX_WBITS
69: #endif
70: /* default windowBits for decompression. MAX_WBITS is for compression only */
71:
72: #if MAX_MEM_LEVEL >= 8
73: # define DEF_MEM_LEVEL 8
74: #else
75: # define DEF_MEM_LEVEL MAX_MEM_LEVEL
76: #endif
77: /* default memLevel */
78:
79: #define STORED_BLOCK 0
80: #define STATIC_TREES 1
81: #define DYN_TREES 2
82: /* The three kinds of block type */
83:
84: #define MIN_MATCH 3
85: #define MAX_MATCH 258
86: /* The minimum and maximum match lengths */
87:
88: #define PRESET_DICT 0x20 /* preset dictionary flag in zlib header */
89:
90: /* target dependencies */
91:
92: #if defined(MSDOS) || (defined(WINDOWS) && !defined(WIN32))
93: # define OS_CODE 0x00
94: # if defined(__TURBOC__) || defined(__BORLANDC__)
95: # if(__STDC__ == 1) && (defined(__LARGE__) || defined(__COMPACT__))
96: /* Allow compilation with ANSI keywords only enabled */
97: void _Cdecl farfree( void *block );
98: void *_Cdecl farmalloc( unsigned long nbytes );
99: # else
100: # include <alloc.h>
101: # endif
102: # else /* MSC or DJGPP */
103: # include <malloc.h>
104: # endif
105: #endif
106:
107: #ifdef AMIGA
108: # define OS_CODE 0x01
109: #endif
110:
111: #if defined(VAXC) || defined(VMS)
112: # define OS_CODE 0x02
113: # define F_OPEN(name, mode) \
114: fopen((name), (mode), "mbc=60", "ctx=stm", "rfm=fix", "mrs=512")
115: #endif
116:
117: #if defined(ATARI) || defined(atarist)
118: # define OS_CODE 0x05
119: #endif
120:
121: #ifdef OS2
122: # define OS_CODE 0x06
123: # ifdef M_I86
124: #include <malloc.h>
125: # endif
126: #endif
127:
128: #if defined(MACOS) || defined(TARGET_OS_MAC)
129: # define OS_CODE 0x07
130: # if defined(__MWERKS__) && __dest_os != __be_os && __dest_os != __win32_os
131: # include <unix.h> /* for fdopen */
132: # else
133: # ifndef fdopen
134: # define fdopen(fd,mode) NULL /* No fdopen() */
135: # endif
136: # endif
137: #endif
138:
139: #ifdef TOPS20
140: # define OS_CODE 0x0a
141: #endif
142:
143: #ifdef WIN32
144: # ifndef __CYGWIN__ /* Cygwin is Unix, not Win32 */
145: # define OS_CODE 0x0b
146: # endif
147: #endif
148:
149: #ifdef __50SERIES /* Prime/PRIMOS */
150: # define OS_CODE 0x0f
151: #endif
152:
153: #if defined(_BEOS_) || defined(RISCOS)
154: # define fdopen(fd,mode) NULL /* No fdopen() */
155: #endif
156:
157: #if (defined(_MSC_VER) && (_MSC_VER > 600))
158: # if defined(_WIN32_WCE)
159: # define fdopen(fd,mode) NULL /* No fdopen() */
160: # ifndef _PTRDIFF_T_DEFINED
161: typedef int ptrdiff_t;
162: # define _PTRDIFF_T_DEFINED
163: # endif
164: # else
165: # define fdopen(fd,type) _fdopen(fd,type)
166: # endif
167: #endif
168:
169: /* common defaults */
170:
171: #ifndef OS_CODE
172: # define OS_CODE 0x03 /* assume Unix */
173: #endif
174:
175: #ifndef F_OPEN
176: # define F_OPEN(name, mode) fopen((name), (mode))
177: #endif
178:
179: /* functions */
180:
181: #if defined(STDC99) || (defined(__TURBOC__) && __TURBOC__ >= 0x550)
182: # ifndef HAVE_VSNPRINTF
183: # define HAVE_VSNPRINTF
184: # endif
185: #endif
186: #if defined(__CYGWIN__)
187: # ifndef HAVE_VSNPRINTF
188: # define HAVE_VSNPRINTF
189: # endif
190: #endif
191: #ifndef HAVE_VSNPRINTF
192: # ifdef MSDOS
193: /* vsnprintf may exist on some MS-DOS compilers (DJGPP?),
194: but for now we just assume it doesn't. */
195: # define NO_vsnprintf
196: # endif
197: # ifdef __TURBOC__
198: # define NO_vsnprintf
199: # endif
200: # ifdef WIN32
201: /* In Win32, vsnprintf is available as the "non-ANSI" _vsnprintf. */
202: # if !defined(vsnprintf) && !defined(NO_vsnprintf)
203: # define vsnprintf _vsnprintf
204: # endif
205: # endif
206: # ifdef __SASC
207: # define NO_vsnprintf
208: # endif
209: #endif
210: #ifdef VMS
211: # define NO_vsnprintf
212: #endif
213:
214: #if defined(pyr)
215: # define NO_MEMCPY
216: #endif
217: #if defined(SMALL_MEDIUM) && !defined(_MSC_VER) && !defined(__SC__)
218: /* Use our own functions for small and medium model with MSC <= 5.0.
219: * You may have to use the same strategy for Borland C (untested).
220: * The __SC__ check is for Symantec.
221: */
222: # define NO_MEMCPY
223: #endif
224: #if defined(STDC) && !defined(HAVE_MEMCPY) && !defined(NO_MEMCPY)
225: # define HAVE_MEMCPY
226: #endif
227: #ifdef HAVE_MEMCPY
228: # ifdef SMALL_MEDIUM /* MSDOS small or medium model */
229: # define zmemcpy _fmemcpy
230: # define zmemcmp _fmemcmp
231: # define zmemzero(dest, len) _fmemset(dest, 0, len)
232: # else
233: # define zmemcpy memcpy
234: # define zmemcmp memcmp
235: # define zmemzero(dest, len) memset(dest, 0, len)
236: # endif
237: #else
238: extern void zmemcpy OF((Bytef* dest, const Bytef* source, uInt len));
239: extern int zmemcmp OF((const Bytef* s1, const Bytef* s2, uInt len));
240: extern void zmemzero OF((Bytef* dest, uInt len));
241: #endif
242:
243: /* Diagnostic functions */
244: #ifdef DEBUG
245: # include <stdio.h>
246: extern int z_verbose;
247: extern void z_error OF((char *m));
248: # define Assert(cond,msg) {if(!(cond)) z_error(msg);}
249: # define Trace(x) {if (z_verbose>=0) fprintf x ;}
250: # define Tracev(x) {if (z_verbose>0) fprintf x ;}
251: # define Tracevv(x) {if (z_verbose>1) fprintf x ;}
252: # define Tracec(c,x) {if (z_verbose>0 && (c)) fprintf x ;}
253: # define Tracecv(c,x) {if (z_verbose>1 && (c)) fprintf x ;}
254: #else
255: # define Assert(cond,msg)
256: # define Trace(x)
257: # define Tracev(x)
258: # define Tracevv(x)
259: # define Tracec(c,x)
260: # define Tracecv(c,x)
261: #endif
262:
263:
264: voidpf zcalloc OF((voidpf opaque, unsigned items, unsigned size));
265: void 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 */
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