security/nss/lib/zlib/zutil.h@b8a032363ba2
security/nss/lib/zlib/zutil.h
Thu, 22 Jan 2015 13:21:57 +0100
- author
- Michael Schloh von Bennewitz <michael@schloh.com>
- date
- Thu, 22 Jan 2015 13:21:57 +0100
- branch
- TOR_BUG_9701
- changeset 15
- b8a032363ba2
- permissions
- -rw-r--r--
Incorporate requested changes from Mozilla in review:
https://bugzilla.mozilla.org/show_bug.cgi?id=1123480#c6
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 */
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 */
11 /* @(#) $Id$ */
13 #ifndef ZUTIL_H
14 #define ZUTIL_H
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
22 #include "zlib.h"
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
32 #ifndef local
33 # define local static
34 #endif
35 /* compile with -Dlocal if your debugger can't find static symbols */
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;
43 extern const char * const z_errmsg[10]; /* indexed by 2-zlib_error */
44 /* (size given to avoid silly warnings with Visual C++) */
46 #define ERR_MSG(err) z_errmsg[Z_NEED_DICT-(err)]
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 */
52 /* common constants */
54 #ifndef DEF_WBITS
55 # define DEF_WBITS MAX_WBITS
56 #endif
57 /* default windowBits for decompression. MAX_WBITS is for compression only */
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 */
66 #define STORED_BLOCK 0
67 #define STATIC_TREES 1
68 #define DYN_TREES 2
69 /* The three kinds of block type */
71 #define MIN_MATCH 3
72 #define MAX_MATCH 258
73 /* The minimum and maximum match lengths */
75 #define PRESET_DICT 0x20 /* preset dictionary flag in zlib header */
77 /* target dependencies */
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
94 #ifdef AMIGA
95 # define OS_CODE 0x01
96 #endif
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
104 #if defined(ATARI) || defined(atarist)
105 # define OS_CODE 0x05
106 #endif
108 #ifdef OS2
109 # define OS_CODE 0x06
110 # ifdef M_I86
111 # include <malloc.h>
112 # endif
113 #endif
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
126 #ifdef TOPS20
127 # define OS_CODE 0x0a
128 #endif
130 #ifdef WIN32
131 # ifndef __CYGWIN__ /* Cygwin is Unix, not Win32 */
132 # define OS_CODE 0x0b
133 # endif
134 #endif
136 #ifdef __50SERIES /* Prime/PRIMOS */
137 # define OS_CODE 0x0f
138 #endif
140 #if defined(_BEOS_) || defined(RISCOS)
141 # define fdopen(fd,mode) NULL /* No fdopen() */
142 #endif
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
156 #if defined(__BORLANDC__)
157 #pragma warn -8004
158 #pragma warn -8008
159 #pragma warn -8066
160 #endif
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
168 /* common defaults */
170 #ifndef OS_CODE
171 # define OS_CODE 0x03 /* assume Unix */
172 #endif
174 #ifndef F_OPEN
175 # define F_OPEN(name, mode) fopen((name), (mode))
176 #endif
178 /* functions */
180 #if defined(STDC99) || (defined(__TURBOC__) && __TURBOC__ >= 0x550) || \
181 (defined(_MSC_VER) && _MSC_VER >= 1500)
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 # if !defined(_MSC_VER) || ( defined(_MSC_VER) && _MSC_VER < 1500 )
204 # define vsnprintf _vsnprintf
205 # endif
206 # endif
207 # endif
208 # ifdef __SASC
209 # define NO_vsnprintf
210 # endif
211 #endif
212 #ifdef VMS
213 # define NO_vsnprintf
214 #endif
216 #if defined(pyr)
217 # define NO_MEMCPY
218 #endif
219 #if defined(SMALL_MEDIUM) && !defined(_MSC_VER) && !defined(__SC__)
220 /* Use our own functions for small and medium model with MSC <= 5.0.
221 * You may have to use the same strategy for Borland C (untested).
222 * The __SC__ check is for Symantec.
223 */
224 # define NO_MEMCPY
225 #endif
226 #if defined(STDC) && !defined(HAVE_MEMCPY) && !defined(NO_MEMCPY)
227 # define HAVE_MEMCPY
228 #endif
229 #ifdef HAVE_MEMCPY
230 # ifdef SMALL_MEDIUM /* MSDOS small or medium model */
231 # define zmemcpy _fmemcpy
232 # define zmemcmp _fmemcmp
233 # define zmemzero(dest, len) _fmemset(dest, 0, len)
234 # else
235 # define zmemcpy memcpy
236 # define zmemcmp memcmp
237 # define zmemzero(dest, len) memset(dest, 0, len)
238 # endif
239 #else
240 void ZLIB_INTERNAL zmemcpy OF((Bytef* dest, const Bytef* source, uInt len));
241 int ZLIB_INTERNAL zmemcmp OF((const Bytef* s1, const Bytef* s2, uInt len));
242 void ZLIB_INTERNAL zmemzero OF((Bytef* dest, uInt len));
243 #endif
245 /* Diagnostic functions */
246 #ifdef DEBUG
247 # include <stdio.h>
248 extern int ZLIB_INTERNAL z_verbose;
249 extern void ZLIB_INTERNAL z_error OF((char *m));
250 # define Assert(cond,msg) {if(!(cond)) z_error(msg);}
251 # define Trace(x) {if (z_verbose>=0) fprintf x ;}
252 # define Tracev(x) {if (z_verbose>0) fprintf x ;}
253 # define Tracevv(x) {if (z_verbose>1) fprintf x ;}
254 # define Tracec(c,x) {if (z_verbose>0 && (c)) fprintf x ;}
255 # define Tracecv(c,x) {if (z_verbose>1 && (c)) fprintf x ;}
256 #else
257 # define Assert(cond,msg)
258 # define Trace(x)
259 # define Tracev(x)
260 # define Tracevv(x)
261 # define Tracec(c,x)
262 # define Tracecv(c,x)
263 #endif
266 voidpf ZLIB_INTERNAL zcalloc OF((voidpf opaque, unsigned items,
267 unsigned size));
268 void ZLIB_INTERNAL zcfree OF((voidpf opaque, voidpf ptr));
270 #define ZALLOC(strm, items, size) \
271 (*((strm)->zalloc))((strm)->opaque, (items), (size))
272 #define ZFREE(strm, addr) (*((strm)->zfree))((strm)->opaque, (voidpf)(addr))
273 #define TRY_FREE(s, p) {if (p) ZFREE(s, p);}
275 #endif /* ZUTIL_H */
