Annotation of sys/lib/libz/zutil.h, Revision 1.1.1.1
1.1 nbrk 1: /* $OpenBSD: zutil.h,v 1.17 2006/11/29 10:37:03 mickey Exp $ */
2: /* zutil.h -- internal interface and configuration of the compression library
3: * Copyright (C) 1995-2005 Jean-loup Gailly.
4: * For conditions of distribution and use, see copyright notice in zlib.h
5: */
6:
7: /* WARNING: this file should *not* be used by applications. It is
8: part of the implementation of the compression library and is
9: subject to change. Applications should only use zlib.h.
10: */
11:
12:
13: #ifndef ZUTIL_H
14: #define ZUTIL_H
15:
16: #define ZLIB_INTERNAL
17: #include "zlib.h"
18:
19: #ifdef _STANDALONE
20: #include <lib/libsa/stand.h>
21: #else
22: #ifdef STDC
23: # ifndef _WIN32_WCE
24: # include <stddef.h>
25: # endif
26: # include <string.h>
27: # include <stdlib.h>
28: #endif
29: #ifdef NO_ERRNO_H
30: # ifdef _WIN32_WCE
31: /* The Microsoft C Run-Time Library for Windows CE doesn't have
32: * errno. We define it as a global variable to simplify porting.
33: * Its value is always 0 and should not be used. We rename it to
34: * avoid conflict with other libraries that use the same workaround.
35: */
36: # define errno z_errno
37: # endif
38: extern int errno;
39: #else
40: # ifndef _WIN32_WCE
41: # include <errno.h>
42: # endif
43: #endif
44: #endif
45:
46: #ifndef local
47: # define local static
48: #endif
49: /* compile with -Dlocal if your debugger can't find static symbols */
50:
51: typedef unsigned char uch;
52: typedef uch FAR uchf;
53: typedef unsigned short ush;
54: typedef ush FAR ushf;
55: typedef unsigned long ulg;
56:
57: extern const char * const z_errmsg[10]; /* indexed by 2-zlib_error */
58: /* (size given to avoid silly warnings with Visual C++) */
59:
60: #define ERR_MSG(err) z_errmsg[Z_NEED_DICT-(err)]
61:
62: #define ERR_RETURN(strm,err) \
63: return (strm->msg = (char*)ERR_MSG(err), (err))
64: /* To be used only when the state is known to be valid */
65:
66: /* common constants */
67:
68: #ifndef DEF_WBITS
69: # define DEF_WBITS MAX_WBITS
70: #endif
71: /* default windowBits for decompression. MAX_WBITS is for compression only */
72:
73: #if MAX_MEM_LEVEL >= 8
74: # define DEF_MEM_LEVEL 8
75: #else
76: # define DEF_MEM_LEVEL MAX_MEM_LEVEL
77: #endif
78: /* default memLevel */
79:
80: #define STORED_BLOCK 0
81: #define STATIC_TREES 1
82: #define DYN_TREES 2
83: /* The three kinds of block type */
84:
85: #define MIN_MATCH 3
86: #define MAX_MATCH 258
87: /* The minimum and maximum match lengths */
88:
89: #define PRESET_DICT 0x20 /* preset dictionary flag in zlib header */
90:
91: /* target dependencies */
92:
93: #if defined(MSDOS) || (defined(WINDOWS) && !defined(WIN32))
94: # define OS_CODE 0x00
95: # if defined(__TURBOC__) || defined(__BORLANDC__)
96: # if(__STDC__ == 1) && (defined(__LARGE__) || defined(__COMPACT__))
97: /* Allow compilation with ANSI keywords only enabled */
98: void _Cdecl farfree( void *block );
99: void *_Cdecl farmalloc( unsigned long nbytes );
100: # else
101: # include <alloc.h>
102: # endif
103: # else /* MSC or DJGPP */
104: # include <malloc.h>
105: # endif
106: #endif
107:
108: #ifdef AMIGA
109: # define OS_CODE 0x01
110: #endif
111:
112: #if defined(VAXC) || defined(VMS)
113: # define OS_CODE 0x02
114: # define F_OPEN(name, mode) \
115: fopen((name), (mode), "mbc=60", "ctx=stm", "rfm=fix", "mrs=512")
116: #endif
117:
118: #if defined(ATARI) || defined(atarist)
119: # define OS_CODE 0x05
120: #endif
121:
122: #ifdef OS2
123: # define OS_CODE 0x06
124: # ifdef M_I86
125: #include <malloc.h>
126: # endif
127: #endif
128:
129: #if defined(MACOS) || defined(TARGET_OS_MAC)
130: # define OS_CODE 0x07
131: # if defined(__MWERKS__) && __dest_os != __be_os && __dest_os != __win32_os
132: # include <unix.h> /* for fdopen */
133: # else
134: # ifndef fdopen
135: # define fdopen(fd,mode) NULL /* No fdopen() */
136: # endif
137: # endif
138: #endif
139:
140: #ifdef TOPS20
141: # define OS_CODE 0x0a
142: #endif
143:
144: #ifdef WIN32
145: # ifndef __CYGWIN__ /* Cygwin is Unix, not Win32 */
146: # define OS_CODE 0x0b
147: # endif
148: #endif
149:
150: #ifdef __50SERIES /* Prime/PRIMOS */
151: # define OS_CODE 0x0f
152: #endif
153:
154: #if defined(_BEOS_) || defined(RISCOS)
155: # define fdopen(fd,mode) NULL /* No fdopen() */
156: #endif
157:
158: #if (defined(_MSC_VER) && (_MSC_VER > 600))
159: # if defined(_WIN32_WCE)
160: # define fdopen(fd,mode) NULL /* No fdopen() */
161: # ifndef _PTRDIFF_T_DEFINED
162: typedef int ptrdiff_t;
163: # define _PTRDIFF_T_DEFINED
164: # endif
165: # else
166: # define fdopen(fd,type) _fdopen(fd,type)
167: # endif
168: #endif
169:
170: /* common defaults */
171:
172: #ifndef OS_CODE
173: # define OS_CODE 0x03 /* assume Unix */
174: #endif
175:
176: #ifndef F_OPEN
177: # define F_OPEN(name, mode) fopen((name), (mode))
178: #endif
179:
180: /* functions */
181:
182: #if defined(STDC99) || (defined(__TURBOC__) && __TURBOC__ >= 0x550)
183: # ifndef HAVE_VSNPRINTF
184: # define HAVE_VSNPRINTF
185: # endif
186: #endif
187: #if defined(__CYGWIN__)
188: # ifndef HAVE_VSNPRINTF
189: # define HAVE_VSNPRINTF
190: # endif
191: #endif
192: #ifndef HAVE_VSNPRINTF
193: # ifdef MSDOS
194: /* vsnprintf may exist on some MS-DOS compilers (DJGPP?),
195: but for now we just assume it doesn't. */
196: # define NO_vsnprintf
197: # endif
198: # ifdef __TURBOC__
199: # define NO_vsnprintf
200: # endif
201: # ifdef WIN32
202: /* In Win32, vsnprintf is available as the "non-ANSI" _vsnprintf. */
203: # if !defined(vsnprintf) && !defined(NO_vsnprintf)
204: # define vsnprintf _vsnprintf
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: extern void zmemcpy OF((Bytef* dest, const Bytef* source, uInt len));
240: extern int zmemcmp OF((const Bytef* s1, const Bytef* s2, uInt len));
241: extern void zmemzero OF((Bytef* dest, uInt len));
242: #endif
243:
244: /* Diagnostic functions */
245: #ifdef DEBUG_LIBZ
246: # include <stdio.h>
247: extern int z_verbose;
248: extern void 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 zcalloc OF((voidpf opaque, unsigned items, unsigned size));
266: void zcfree OF((voidpf opaque, voidpf ptr));
267:
268: #define ZALLOC(strm, items, size) \
269: (*((strm)->zalloc))((strm)->opaque, (items), (size))
270: #define ZFREE(strm, addr) (*((strm)->zfree))((strm)->opaque, (voidpf)(addr))
271: #define TRY_FREE(s, p) {if (p) ZFREE(s, p);}
272:
273: #endif /* ZUTIL_H */
CVSweb
![[BACK]](/icons/back.gif){kind=icon}
Return to zutil.h CVS log ![[TXT]](/icons/text.gif){kind=icon}
![[DIR]](/icons/dir.gif){kind=icon}
Up to [local] / sys / lib / libz