Annotation of embedaddon/sudo/zlib/zutil.h, revision 1.1.1.1
1.1 misho 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: #if ((__GNUC__-0) * 10 + __GNUC_MINOR__-0 >= 33) && !defined(NO_VIZ)
17: # define ZLIB_INTERNAL __attribute__((visibility ("hidden")))
18: #else
19: # define ZLIB_INTERNAL
20: #endif
21:
22: #include "zlib.h"
23:
24: #ifdef STDC
25: # if !(defined(_WIN32_WCE) && defined(_MSC_VER))
26: # include <stddef.h>
27: # endif
28: # include <string.h>
29: # include <stdlib.h>
30: #endif
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 * const 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: #if defined(MSDOS) || (defined(WINDOWS) && !defined(WIN32))
80: # define OS_CODE 0x00
81: # if defined(__TURBOC__) || defined(__BORLANDC__)
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 AMIGA
95: # define OS_CODE 0x01
96: #endif
97:
98: #if defined(VAXC) || defined(VMS)
99: # define OS_CODE 0x02
100: # define F_OPEN(name, mode) \
101: fopen((name), (mode), "mbc=60", "ctx=stm", "rfm=fix", "mrs=512")
102: #endif
103:
104: #if defined(ATARI) || defined(atarist)
105: # define OS_CODE 0x05
106: #endif
107:
108: #ifdef OS2
109: # define OS_CODE 0x06
110: # ifdef M_I86
111: # include <malloc.h>
112: # endif
113: #endif
114:
115: #if defined(MACOS) || defined(TARGET_OS_MAC)
116: # define OS_CODE 0x07
117: # if defined(__MWERKS__) && __dest_os != __be_os && __dest_os != __win32_os
118: # include <unix.h> /* for fdopen */
119: # else
120: # ifndef fdopen
121: # define fdopen(fd,mode) NULL /* No fdopen() */
122: # endif
123: # endif
124: #endif
125:
126: #ifdef TOPS20
127: # define OS_CODE 0x0a
128: #endif
129:
130: #ifdef WIN32
131: # ifndef __CYGWIN__ /* Cygwin is Unix, not Win32 */
132: # define OS_CODE 0x0b
133: # endif
134: #endif
135:
136: #ifdef __50SERIES /* Prime/PRIMOS */
137: # define OS_CODE 0x0f
138: #endif
139:
140: #if defined(_BEOS_) || defined(RISCOS)
141: # define fdopen(fd,mode) NULL /* No fdopen() */
142: #endif
143:
144: #if (defined(_MSC_VER) && (_MSC_VER > 600)) && !defined __INTERIX
145: # if defined(_WIN32_WCE)
146: # define fdopen(fd,mode) NULL /* No fdopen() */
147: # ifndef _PTRDIFF_T_DEFINED
148: typedef int ptrdiff_t;
149: # define _PTRDIFF_T_DEFINED
150: # endif
151: # else
152: # define fdopen(fd,type) _fdopen(fd,type)
153: # endif
154: #endif
155:
156: #if defined(__BORLANDC__)
157: #pragma warn -8004
158: #pragma warn -8008
159: #pragma warn -8066
160: #endif
161:
162: /* provide prototypes for these when building zlib without LFS */
163: #if !defined(_LARGEFILE64_SOURCE) || _LFS64_LARGEFILE-0 == 0
164: ZEXTERN uLong ZEXPORT adler32_combine64 OF((uLong, uLong, z_off_t));
165: ZEXTERN uLong ZEXPORT crc32_combine64 OF((uLong, uLong, z_off_t));
166: #endif
167:
168: /* common defaults */
169:
170: #ifndef OS_CODE
171: # define OS_CODE 0x03 /* assume Unix */
172: #endif
173:
174: #ifndef F_OPEN
175: # define F_OPEN(name, mode) fopen((name), (mode))
176: #endif
177:
178: /* functions */
179:
180: #if defined(STDC99) || (defined(__TURBOC__) && __TURBOC__ >= 0x550)
181: # ifndef HAVE_VSNPRINTF
182: # define HAVE_VSNPRINTF
183: # endif
184: #endif
185: #if defined(__CYGWIN__)
186: # ifndef HAVE_VSNPRINTF
187: # define HAVE_VSNPRINTF
188: # endif
189: #endif
190: #ifndef HAVE_VSNPRINTF
191: # ifdef MSDOS
192: /* vsnprintf may exist on some MS-DOS compilers (DJGPP?),
193: but for now we just assume it doesn't. */
194: # define NO_vsnprintf
195: # endif
196: # ifdef __TURBOC__
197: # define NO_vsnprintf
198: # endif
199: # ifdef WIN32
200: /* In Win32, vsnprintf is available as the "non-ANSI" _vsnprintf. */
201: # if !defined(vsnprintf) && !defined(NO_vsnprintf)
202: # if !defined(_MSC_VER) || ( defined(_MSC_VER) && _MSC_VER < 1500 )
203: # define vsnprintf _vsnprintf
204: # endif
205: # endif
206: # endif
207: # ifdef __SASC
208: # define NO_vsnprintf
209: # endif
210: #endif
211: #ifdef VMS
212: # define NO_vsnprintf
213: #endif
214:
215: #if defined(pyr)
216: # define NO_MEMCPY
217: #endif
218: #if defined(SMALL_MEDIUM) && !defined(_MSC_VER) && !defined(__SC__)
219: /* Use our own functions for small and medium model with MSC <= 5.0.
220: * You may have to use the same strategy for Borland C (untested).
221: * The __SC__ check is for Symantec.
222: */
223: # define NO_MEMCPY
224: #endif
225: #if defined(STDC) && !defined(HAVE_MEMCPY) && !defined(NO_MEMCPY)
226: # define HAVE_MEMCPY
227: #endif
228: #ifdef HAVE_MEMCPY
229: # ifdef SMALL_MEDIUM /* MSDOS small or medium model */
230: # define zmemcpy _fmemcpy
231: # define zmemcmp _fmemcmp
232: # define zmemzero(dest, len) _fmemset(dest, 0, len)
233: # else
234: # define zmemcpy memcpy
235: # define zmemcmp memcmp
236: # define zmemzero(dest, len) memset(dest, 0, len)
237: # endif
238: #else
239: void ZLIB_INTERNAL zmemcpy OF((Bytef* dest, const Bytef* source, uInt len));
240: int ZLIB_INTERNAL zmemcmp OF((const Bytef* s1, const Bytef* s2, uInt len));
241: void ZLIB_INTERNAL zmemzero OF((Bytef* dest, uInt len));
242: #endif
243:
244: /* Diagnostic functions */
245: #ifdef DEBUG
246: # include <stdio.h>
247: extern int ZLIB_INTERNAL z_verbose;
248: extern void ZLIB_INTERNAL z_error OF((char *m));
249: # define Assert(cond,msg) {if(!(cond)) z_error(msg);}
250: # define Trace(x) {if (z_verbose>=0) fprintf x ;}
251: # define Tracev(x) {if (z_verbose>0) fprintf x ;}
252: # define Tracevv(x) {if (z_verbose>1) fprintf x ;}
253: # define Tracec(c,x) {if (z_verbose>0 && (c)) fprintf x ;}
254: # define Tracecv(c,x) {if (z_verbose>1 && (c)) fprintf x ;}
255: #else
256: # define Assert(cond,msg)
257: # define Trace(x)
258: # define Tracev(x)
259: # define Tracevv(x)
260: # define Tracec(c,x)
261: # define Tracecv(c,x)
262: #endif
263:
264:
265: voidpf ZLIB_INTERNAL zcalloc OF((voidpf opaque, unsigned items,
266: unsigned size));
267: void ZLIB_INTERNAL zcfree OF((voidpf opaque, voidpf ptr));
268:
269: #define ZALLOC(strm, items, size) \
270: (*((strm)->zalloc))((strm)->opaque, (items), (size))
271: #define ZFREE(strm, addr) (*((strm)->zfree))((strm)->opaque, (voidpf)(addr))
272: #define TRY_FREE(s, p) {if (p) ZFREE(s, p);}
273:
274: #endif /* ZUTIL_H */
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