1 /* zutil.h -- internal interface and configuration of the compression library 2 3 Copyright (c) 2011 - 2012, Intel Corporation. All rights reserved.<BR> 4 This program and the accompanying materials are licensed and made available under 5 the terms and conditions of the BSD License that accompanies this distribution. 6 The full text of the license may be found at 7 http://opensource.org/licenses/bsd-license. 8 9 THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, 10 WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. 11 12 * Copyright (C) 1995-2005 Jean-loup Gailly. 13 * For conditions of distribution and use, see copyright notice in zlib.h 14 **/ 15 16 /* WARNING: this file should *not* be used by applications. It is 17 part of the implementation of the compression library and is 18 subject to change. Applications should only use zlib.h. 19 */ 20 21 #ifndef ZUTIL_H 22 #define ZUTIL_H 23 24 #define ZLIB_INTERNAL 25 #include "zlib.h" 26 27 #if defined(UEFI_C_SOURCE) || defined(STDC) 28 # ifndef _WIN32_WCE 29 # include <stddef.h> 30 # endif 31 # include <string.h> 32 # include <stdlib.h> 33 #endif 34 #ifdef NO_ERRNO_H 35 # ifdef _WIN32_WCE 36 /* The Microsoft C Run-Time Library for Windows CE doesn't have 37 * errno. We define it as a global variable to simplify porting. 38 * Its value is always 0 and should not be used. We rename it to 39 * avoid conflict with other libraries that use the same workaround. 40 */ 41 # define errno z_errno 42 # endif 43 extern int errno; 44 #else 45 # ifndef _WIN32_WCE 46 # include <errno.h> 47 # endif 48 #endif 49 50 #ifndef local 51 # define local static 52 #endif 53 /* compile with -Dlocal if your debugger can't find static symbols */ 54 55 typedef unsigned char uch; 56 typedef uch FAR uchf; 57 typedef unsigned short ush; 58 typedef ush FAR ushf; 59 typedef unsigned long ulg; 60 61 extern const char * const z_errmsg[10]; /* indexed by 2-zlib_error */ 62 /* (size given to avoid silly warnings with Visual C++) */ 63 64 #define ERR_MSG(err) z_errmsg[Z_NEED_DICT-(err)] 65 66 #define ERR_RETURN(strm,err) \ 67 return (strm->msg = (char*)ERR_MSG(err), (err)) 68 /* To be used only when the state is known to be valid */ 69 70 /* common constants */ 71 72 #ifndef DEF_WBITS 73 # define DEF_WBITS MAX_WBITS 74 #endif 75 /* default windowBits for decompression. MAX_WBITS is for compression only */ 76 77 #if MAX_MEM_LEVEL >= 8 78 # define DEF_MEM_LEVEL 8 79 #else 80 # define DEF_MEM_LEVEL MAX_MEM_LEVEL 81 #endif 82 /* default memLevel */ 83 84 #define STORED_BLOCK 0 85 #define STATIC_TREES 1 86 #define DYN_TREES 2 87 /* The three kinds of block type */ 88 89 #define MIN_MATCH 3 90 #define MAX_MATCH 258 91 /* The minimum and maximum match lengths */ 92 93 #define PRESET_DICT 0x20 /* preset dictionary flag in zlib header */ 94 95 /* target dependencies */ 96 97 #if defined(MSDOS) || (defined(WINDOWS) && !defined(WIN32)) 98 # define OS_CODE 0x00 99 # if defined(__TURBOC__) || defined(__BORLANDC__) 100 # if(__STDC__ == 1) && (defined(__LARGE__) || defined(__COMPACT__)) 101 /* Allow compilation with ANSI keywords only enabled */ 102 void _Cdecl farfree( void *block ); 103 void *_Cdecl farmalloc( unsigned long nbytes ); 104 # else 105 # include <alloc.h> 106 # endif 107 # else /* MSC or DJGPP */ 108 # include <malloc.h> 109 # endif 110 #endif 111 112 #ifdef AMIGA 113 # define OS_CODE 0x01 114 #endif 115 116 #if defined(VAXC) || defined(VMS) 117 # define OS_CODE 0x02 118 # define F_OPEN(name, mode) \ 119 fopen((name), (mode), "mbc=60", "ctx=stm", "rfm=fix", "mrs=512") 120 #endif 121 122 #if defined(ATARI) || defined(atarist) 123 # define OS_CODE 0x05 124 #endif 125 126 #ifdef OS2 127 # define OS_CODE 0x06 128 # ifdef M_I86 129 #include <malloc.h> 130 # endif 131 #endif 132 133 #if defined(MACOS) || defined(TARGET_OS_MAC) 134 # define OS_CODE 0x07 135 # if defined(__MWERKS__) && __dest_os != __be_os && __dest_os != __win32_os 136 # include <unix.h> /* for fdopen */ 137 # else 138 # ifndef fdopen 139 # define fdopen(fd,mode) NULL /* No fdopen() */ 140 # endif 141 # endif 142 #endif 143 144 #ifdef TOPS20 145 # define OS_CODE 0x0a 146 #endif 147 148 #ifdef WIN32 149 # ifndef __CYGWIN__ /* Cygwin is Unix, not Win32 */ 150 # define OS_CODE 0x0b 151 # endif 152 #endif 153 154 #ifdef __50SERIES /* Prime/PRIMOS */ 155 # define OS_CODE 0x0f 156 #endif 157 158 #if defined(_BEOS_) || defined(RISCOS) 159 # define fdopen(fd,mode) NULL /* No fdopen() */ 160 #endif 161 162 #if !defined(UEFI_C_SOURCE) && (defined(_MSC_VER) && (_MSC_VER > 600)) 163 # if defined(_WIN32_WCE) 164 # define fdopen(fd,mode) NULL /* No fdopen() */ 165 # ifndef _PTRDIFF_T_DEFINED 166 typedef int ptrdiff_t; 167 # define _PTRDIFF_T_DEFINED 168 # endif 169 # else 170 # define fdopen(fd,type) _fdopen(fd,type) 171 # endif 172 #endif 173 174 /* common defaults */ 175 176 #ifndef OS_CODE 177 # define OS_CODE 0x03 /* assume Unix */ 178 #endif 179 180 #ifndef F_OPEN 181 # define F_OPEN(name, mode) fopen((name), (mode)) 182 #endif 183 184 /* functions */ 185 186 #if defined(STDC99) || (defined(__TURBOC__) && __TURBOC__ >= 0x550) 187 # ifndef HAVE_VSNPRINTF 188 # define HAVE_VSNPRINTF 189 # endif 190 #endif 191 #if defined(__CYGWIN__) 192 # ifndef HAVE_VSNPRINTF 193 # define HAVE_VSNPRINTF 194 # endif 195 #endif 196 #ifndef HAVE_VSNPRINTF 197 # ifdef MSDOS 198 /* vsnprintf may exist on some MS-DOS compilers (DJGPP?), 199 but for now we just assume it doesn't. */ 200 # define NO_vsnprintf 201 # endif 202 # ifdef __TURBOC__ 203 # define NO_vsnprintf 204 # endif 205 # ifdef WIN32 206 /* In Win32, vsnprintf is available as the "non-ANSI" _vsnprintf. */ 207 # if !defined(vsnprintf) && !defined(NO_vsnprintf) 208 # define vsnprintf _vsnprintf 209 # endif 210 # endif 211 # ifdef __SASC 212 # define NO_vsnprintf 213 # endif 214 #endif 215 #ifdef VMS 216 # define NO_vsnprintf 217 #endif 218 219 #if defined(pyr) 220 # define NO_MEMCPY 221 #endif 222 #if defined(SMALL_MEDIUM) && !defined(_MSC_VER) && !defined(__SC__) 223 /* Use our own functions for small and medium model with MSC <= 5.0. 224 * You may have to use the same strategy for Borland C (untested). 225 * The __SC__ check is for Symantec. 226 */ 227 # define NO_MEMCPY 228 #endif 229 #if defined(STDC) && !defined(HAVE_MEMCPY) && !defined(NO_MEMCPY) 230 # define HAVE_MEMCPY 231 #endif 232 #ifdef HAVE_MEMCPY 233 # ifdef SMALL_MEDIUM /* MSDOS small or medium model */ 234 # define zmemcpy _fmemcpy 235 # define zmemcmp _fmemcmp 236 # define zmemzero(dest, len) _fmemset(dest, 0, len) 237 # else 238 # define zmemcpy memcpy 239 # define zmemcmp memcmp 240 # define zmemzero(dest, len) memset(dest, 0, len) 241 # endif 242 #else 243 extern void zmemcpy OF((Bytef* dest, const Bytef* source, uInt len)); 244 extern int zmemcmp OF((const Bytef* s1, const Bytef* s2, uInt len)); 245 extern void zmemzero OF((Bytef* dest, uInt len)); 246 #endif 247 248 /* Diagnostic functions */ 249 #ifdef DEBUG 250 # include <stdio.h> 251 extern int z_verbose; 252 extern void z_error OF((char *m)); 253 # define Assert(cond,msg) {if(!(cond)) z_error(msg);} 254 # define Trace(x) {if (z_verbose>=0) fprintf x ;} 255 # define Tracev(x) {if (z_verbose>0) fprintf x ;} 256 # define Tracevv(x) {if (z_verbose>1) fprintf x ;} 257 # define Tracec(c,x) {if (z_verbose>0 && (c)) fprintf x ;} 258 # define Tracecv(c,x) {if (z_verbose>1 && (c)) fprintf x ;} 259 #else 260 # define Assert(cond,msg) 261 # define Trace(x) 262 # define Tracev(x) 263 # define Tracevv(x) 264 # define Tracec(c,x) 265 # define Tracecv(c,x) 266 #endif 267 268 269 voidpf zcalloc OF((voidpf opaque, unsigned items, unsigned size)); 270 void zcfree OF((voidpf opaque, voidpf ptr)); 271 272 #define ZALLOC(strm, items, size) \ 273 (*((strm)->zalloc))((strm)->opaque, (items), (size)) 274 #define ZFREE(strm, addr) (*((strm)->zfree))((strm)->opaque, (voidpf)(addr)) 275 #define TRY_FREE(s, p) {if (p) ZFREE(s, p);} 276 277 #endif /* ZUTIL_H */ 278
