release/src-rt-6.x.4708/shared/zlib/zutil.h

   1 /* zutil.h -- internal interface and configuration of the compression library
   2  * Copyright (C) 1995-1998 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 241182 2011-02-17 21:50:03Z $ */
  12
  13 #ifndef _Z_UTIL_H
  14 #define _Z_UTIL_H
  15
  16 #include "zlib.h"
  17
  18 #if defined(WL_FW_DECOMP)
  19 #include <typedefs.h>
  20 #include <osl.h>
  21 #define calloc(a,b)  dbus_zlib_calloc(a,b)
  22 #define free(a) dbus_zlib_free(a)
  23 extern void *dbus_zlib_calloc(int num, int size);
  24 extern void dbus_zlib_free(void *ptr);
  25 #else
  26 #ifndef BCMDBUS
  27         #ifdef STDC
  28                 #include <stddef.h>
  29                 #include <string.h>
  30                 #include <stdlib.h>
  31         #endif
  32         #ifdef NO_ERRNO_H
  33                 extern int errno;
  34         #else
  35                 #include <errno.h>
  36         #endif
  37 #endif
  38 #endif
  39
  40 #ifndef local
  41 #  define local static
  42 #endif
  43 /* compile with -Dlocal if your debugger can't find static symbols */
  44
  45 typedef unsigned char  uch;
  46 typedef uch FAR uchf;
  47 typedef unsigned short ush;
  48 typedef ush FAR ushf;
  49 typedef unsigned long  ulg;
  50
  51 extern const char *z_errmsg[10]; /* indexed by 2-zlib_error */
  52 /* (size given to avoid silly warnings with Visual C++) */
  53
  54 #define ERR_MSG(err) z_errmsg[Z_NEED_DICT-(err)]
  55
  56 #define ERR_RETURN(strm,err) \
  57   return (strm->msg = (char*)ERR_MSG(err), (err))
  58 /* To be used only when the state is known to be valid */
  59
  60         /* common constants */
  61
  62 #ifndef DEF_WBITS
  63 #  define DEF_WBITS MAX_WBITS
  64 #endif
  65 /* default windowBits for decompression. MAX_WBITS is for compression only */
  66
  67 #if MAX_MEM_LEVEL >= 8
  68 #  define DEF_MEM_LEVEL 8
  69 #else
  70 #  define DEF_MEM_LEVEL  MAX_MEM_LEVEL
  71 #endif
  72 /* default memLevel */
  73
  74 #define STORED_BLOCK 0
  75 #define STATIC_TREES 1
  76 #define DYN_TREES    2
  77 /* The three kinds of block type */
  78
  79 #define MIN_MATCH  3
  80 #define MAX_MATCH  258
  81 /* The minimum and maximum match lengths */
  82
  83 #define PRESET_DICT 0x20 /* preset dictionary flag in zlib header */
  84
  85         /* target dependencies */
  86
  87 #ifdef MSDOS
  88 #  define OS_CODE  0x00
  89 #  if defined(__TURBOC__) || defined(__BORLANDC__)
  90 #    if(__STDC__ == 1) && (defined(__LARGE__) || defined(__COMPACT__))
  91        /* Allow compilation with ANSI keywords only enabled */
  92        void _Cdecl farfree( void *block );
  93        void *_Cdecl farmalloc( unsigned long nbytes );
  94 #    else
  95 #     include <alloc.h>
  96 #    endif
  97 #  else /* MSC or DJGPP */
  98 #    include <malloc.h>
  99 #  endif
 100 #endif
 101
 102 #ifdef OS2
 103 #  define OS_CODE  0x06
 104 #endif
 105
 106 #ifdef WIN32     /* Window 95 & Windows NT */
 107 #  define OS_CODE  0x0b
 108 #endif
 109
 110 #if defined(VAXC) || defined(VMS)
 111 #  define OS_CODE  0x02
 112 #  define F_OPEN(name, mode) \
 113      fopen((name), (mode), "mbc=60", "ctx=stm", "rfm=fix", "mrs=512")
 114 #endif
 115
 116 #ifdef AMIGA
 117 #  define OS_CODE  0x01
 118 #endif
 119
 120 #if defined(ATARI) || defined(atarist)
 121 #  define OS_CODE  0x05
 122 #endif
 123
 124 #if defined(MACOS) || defined(TARGET_OS_MAC)
 125 #  define OS_CODE  0x07
 126 #  if defined(__MWERKS__) && __dest_os != __be_os && __dest_os != __win32_os
 127 #    include <unix.h> /* for fdopen */
 128 #  else
 129 #    ifndef fdopen
 130 #      define fdopen(fd,mode) NULL /* No fdopen() */
 131 #    endif
 132 #  endif
 133 #endif
 134
 135 #ifdef __50SERIES     /* Prime/PRIMOS */
 136 #  define OS_CODE  0x0F
 137 #endif
 138
 139 #ifdef TOPS20
 140 #  define OS_CODE  0x0a
 141 #endif
 142
 143 #if defined(_BEOS_) || defined(RISCOS)
 144 #  define fdopen(fd,mode) NULL /* No fdopen() */
 145 #endif
 146
 147 #ifdef _MSC_VER
 148 #if (_MSC_VER > 600)
 149 #  define fdopen(fd,type)  _fdopen(fd,type)
 150 #endif
 151 #endif
 152
 153         /* Common defaults */
 154
 155 #ifndef OS_CODE
 156 #  define OS_CODE  0x03  /* assume Unix */
 157 #endif
 158
 159 #ifndef F_OPEN
 160 #  define F_OPEN(name, mode) fopen((name), (mode))
 161 #endif
 162
 163          /* functions */
 164
 165 #ifdef HAVE_STRERROR
 166    extern char *strerror OF((int));
 167 #  define zstrerror(errnum) strerror(errnum)
 168 #else
 169 #  define zstrerror(errnum) ""
 170 #endif
 171
 172 #if defined(pyr)
 173 #  define NO_MEMCPY
 174 #endif
 175 #if defined(SMALL_MEDIUM) && !defined(_MSC_VER) && !defined(__SC__)
 176  /* Use our own functions for small and medium model with MSC <= 5.0.
 177   * You may have to use the same strategy for Borland C (untested).
 178   * The __SC__ check is for Symantec.
 179   */
 180 #  define NO_MEMCPY
 181 #endif
 182 #if defined(STDC) && !defined(HAVE_MEMCPY) && !defined(NO_MEMCPY)
 183 #  define HAVE_MEMCPY
 184 #endif
 185 #ifdef HAVE_MEMCPY
 186 #  ifdef SMALL_MEDIUM     /* MSDOS small or medium model */
 187 #    define zmemcpy _fmemcpy
 188 #    define zmemcmp _fmemcmp
 189 #    define zmemzero(dest, len) _fmemset(dest, 0, len)
 190 #  else
 191 #    define zmemcpy memcpy
 192 #    define zmemcmp memcmp
 193 #    define zmemzero(dest, len) memset(dest, 0, len)
 194 #  endif
 195 #else
 196    extern void zmemcpy  OF((Bytef* dest, const Bytef* source, uInt len));
 197    extern int  zmemcmp  OF((const Bytef* s1, const Bytef* s2, uInt len));
 198    extern void zmemzero OF((Bytef* dest, uInt len));
 199 #endif
 200
 201 /* Diagnostic functions */
 202 #ifdef DEBUG
 203 #  include <stdio.h>
 204    extern int z_verbose;
 205    extern void z_error    OF((char *m));
 206 #  define Assert(cond,msg) {if(!(cond)) z_error(msg);}
 207 #  define Trace(x) {if (z_verbose>=0) fprintf x ;}
 208 #  define Tracev(x) {if (z_verbose>0) fprintf x ;}
 209 #  define Tracevv(x) {if (z_verbose>1) fprintf x ;}
 210 #  define Tracec(c,x) {if (z_verbose>0 && (c)) fprintf x ;}
 211 #  define Tracecv(c,x) {if (z_verbose>1 && (c)) fprintf x ;}
 212 #else
 213 #  define Assert(cond,msg)
 214 #  define Trace(x)
 215 #  define Tracev(x)
 216 #  define Tracevv(x)
 217 #  define Tracec(c,x)
 218 #  define Tracecv(c,x)
 219 #endif
 220
 221
 222 typedef uLong (ZEXPORT *check_func) OF((uLong check, const Bytef *buf,
 223                                        uInt len));
 224 voidpf zcalloc OF((voidpf opaque, unsigned items, unsigned size));
 225 void   zcfree  OF((voidpf opaque, voidpf ptr));
 226
 227 #define ZALLOC(strm, items, size) \
 228            (*((strm)->zalloc))((strm)->opaque, (items), (size))
 229 #define ZFREE(strm, addr)  (*((strm)->zfree))((strm)->opaque, (voidpf)(addr))
 230 #define TRY_FREE(s, p) {if (p) ZFREE(s, p);}
 231
 232 #endif /* _Z_UTIL_H */