| /* zutil.h -- internal interface and configuration of the compression library |
| * Copyright (C) 1995-2010 Jean-loup Gailly. |
| * For conditions of distribution and use, see copyright notice in zlib.h |
| */ |
| |
| /* WARNING: this file should *not* be used by applications. It is |
| part of the implementation of the compression library and is |
| subject to change. Applications should only use zlib.h. |
| */ |
| |
| /* @(#) $Id$ */ |
| |
| #ifndef ZUTIL_H |
| #define ZUTIL_H |
| |
| #define ZLIB_INTERNAL |
| #include "zlib.h" |
| |
| #ifdef STDC |
| # if !(defined(_WIN32_WCE) && defined(_MSC_VER)) |
| # include <stddef.h> |
| # endif |
| # include <string.h> |
| # include <stdlib.h> |
| #endif |
| |
| #ifndef local |
| # define local static |
| #endif |
| /* compile with -Dlocal if your debugger can't find static symbols */ |
| |
| typedef unsigned char uch; |
| typedef uch FAR uchf; |
| typedef unsigned short ush; |
| typedef ush FAR ushf; |
| typedef unsigned long ulg; |
| |
| extern const char * const z_errmsg[10]; /* indexed by 2-zlib_error */ |
| /* (size given to avoid silly warnings with Visual C++) */ |
| |
| #define ERR_MSG(err) z_errmsg[Z_NEED_DICT-(err)] |
| |
| #define ERR_RETURN(strm,err) \ |
| return (strm->msg = (char*)ERR_MSG(err), (err)) |
| /* To be used only when the state is known to be valid */ |
| |
| /* common constants */ |
| |
| #ifndef DEF_WBITS |
| # define DEF_WBITS MAX_WBITS |
| #endif |
| /* default windowBits for decompression. MAX_WBITS is for compression only */ |
| |
| #if MAX_MEM_LEVEL >= 8 |
| # define DEF_MEM_LEVEL 8 |
| #else |
| # define DEF_MEM_LEVEL MAX_MEM_LEVEL |
| #endif |
| /* default memLevel */ |
| |
| #define STORED_BLOCK 0 |
| #define STATIC_TREES 1 |
| #define DYN_TREES 2 |
| /* The three kinds of block type */ |
| |
| #define MIN_MATCH 3 |
| #define MAX_MATCH 258 |
| /* The minimum and maximum match lengths */ |
| |
| #define PRESET_DICT 0x20 /* preset dictionary flag in zlib header */ |
| |
| /* target dependencies */ |
| |
| #if defined(MSDOS) || (defined(WINDOWS) && !defined(WIN32)) |
| # define OS_CODE 0x00 |
| # if defined(__TURBOC__) || defined(__BORLANDC__) |
| # if (__STDC__ == 1) && (defined(__LARGE__) || defined(__COMPACT__)) |
| /* Allow compilation with ANSI keywords only enabled */ |
| void _Cdecl farfree( void *block ); |
| void *_Cdecl farmalloc( unsigned long nbytes ); |
| # else |
| # include <alloc.h> |
| # endif |
| # else /* MSC or DJGPP */ |
| # include <malloc.h> |
| # endif |
| #endif |
| |
| #ifdef AMIGA |
| # define OS_CODE 0x01 |
| #endif |
| |
| #if defined(VAXC) || defined(VMS) |
| # define OS_CODE 0x02 |
| # define F_OPEN(name, mode) \ |
| fopen((name), (mode), "mbc=60", "ctx=stm", "rfm=fix", "mrs=512") |
| #endif |
| |
| #if defined(ATARI) || defined(atarist) |
| # define OS_CODE 0x05 |
| #endif |
| |
| #ifdef OS2 |
| # define OS_CODE 0x06 |
| # ifdef M_I86 |
| # include <malloc.h> |
| # endif |
| #endif |
| |
| #if defined(MACOS) || defined(TARGET_OS_MAC) |
| # define OS_CODE 0x07 |
| # if defined(__MWERKS__) && __dest_os != __be_os && __dest_os != __win32_os |
| # include <unix.h> /* for fdopen */ |
| # else |
| # ifndef fdopen |
| # define fdopen(fd,mode) NULL /* No fdopen() */ |
| # endif |
| # endif |
| #endif |
| |
| #ifdef TOPS20 |
| # define OS_CODE 0x0a |
| #endif |
| |
| #ifdef WIN32 |
| # ifndef __CYGWIN__ /* Cygwin is Unix, not Win32 */ |
| # define OS_CODE 0x0b |
| # endif |
| #endif |
| |
| #ifdef __50SERIES /* Prime/PRIMOS */ |
| # define OS_CODE 0x0f |
| #endif |
| |
| #if defined(_BEOS_) || defined(RISCOS) |
| # define fdopen(fd,mode) NULL /* No fdopen() */ |
| #endif |
| |
| #if (defined(_MSC_VER) && (_MSC_VER > 600)) && !defined __INTERIX |
| # if defined(_WIN32_WCE) |
| # define fdopen(fd,mode) NULL /* No fdopen() */ |
| # ifndef _PTRDIFF_T_DEFINED |
| typedef int ptrdiff_t; |
| # define _PTRDIFF_T_DEFINED |
| # endif |
| # else |
| # define fdopen(fd,type) _fdopen(fd,type) |
| # endif |
| #endif |
| |
| #if defined(__BORLANDC__) |
| #pragma warn -8004 |
| #pragma warn -8008 |
| #pragma warn -8066 |
| #endif |
| |
| #if _LARGEFILE64_SOURCE == 1 && _LFS64_LARGEFILE == 1 |
| # define z_off64_t off64_t |
| #else |
| # define z_off64_t z_off_t |
| #endif |
| |
| /* provide prototypes for these when building zlib without LFS */ |
| #if _LARGEFILE64_SOURCE != 1 || _LFS64_LARGEFILE != 1 |
| ZEXTERN gzFile ZEXPORT gzopen64 OF((const char *, const char *)); |
| ZEXTERN off_t ZEXPORT gzseek64 OF((gzFile, off_t, int)); |
| ZEXTERN off_t ZEXPORT gztell64 OF((gzFile)); |
| ZEXTERN off_t ZEXPORT gzoffset64 OF((gzFile)); |
| ZEXTERN uLong ZEXPORT adler32_combine64 OF((uLong, uLong, off_t)); |
| ZEXTERN uLong ZEXPORT crc32_combine64 OF((uLong, uLong, off_t)); |
| #endif |
| |
| /* common defaults */ |
| |
| #ifndef OS_CODE |
| # define OS_CODE 0x03 /* assume Unix */ |
| #endif |
| |
| #ifndef F_OPEN |
| # define F_OPEN(name, mode) fopen((name), (mode)) |
| #endif |
| |
| /* functions */ |
| |
| #if defined(STDC99) || (defined(__TURBOC__) && __TURBOC__ >= 0x550) |
| # ifndef HAVE_VSNPRINTF |
| # define HAVE_VSNPRINTF |
| # endif |
| #endif |
| #if defined(__CYGWIN__) |
| # ifndef HAVE_VSNPRINTF |
| # define HAVE_VSNPRINTF |
| # endif |
| #endif |
| #ifndef HAVE_VSNPRINTF |
| # ifdef MSDOS |
| /* vsnprintf may exist on some MS-DOS compilers (DJGPP?), |
| but for now we just assume it doesn't. */ |
| # define NO_vsnprintf |
| # endif |
| # ifdef __TURBOC__ |
| # define NO_vsnprintf |
| # endif |
| # ifdef WIN32 |
| /* In Win32, vsnprintf is available as the "non-ANSI" _vsnprintf. */ |
| # if !defined(vsnprintf) && !defined(NO_vsnprintf) |
| # if !defined(_MSC_VER) || ( defined(_MSC_VER) && _MSC_VER < 1500 ) |
| # define vsnprintf _vsnprintf |
| # endif |
| # endif |
| # endif |
| # ifdef __SASC |
| # define NO_vsnprintf |
| # endif |
| #endif |
| #ifdef VMS |
| # define NO_vsnprintf |
| #endif |
| |
| #if defined(pyr) |
| # define NO_MEMCPY |
| #endif |
| #if defined(SMALL_MEDIUM) && !defined(_MSC_VER) && !defined(__SC__) |
| /* Use our own functions for small and medium model with MSC <= 5.0. |
| * You may have to use the same strategy for Borland C (untested). |
| * The __SC__ check is for Symantec. |
| */ |
| # define NO_MEMCPY |
| #endif |
| #if defined(STDC) && !defined(HAVE_MEMCPY) && !defined(NO_MEMCPY) |
| # define HAVE_MEMCPY |
| #endif |
| #ifdef HAVE_MEMCPY |
| # ifdef SMALL_MEDIUM /* MSDOS small or medium model */ |
| # define zmemcpy _fmemcpy |
| # define zmemcmp _fmemcmp |
| # define zmemzero(dest, len) _fmemset(dest, 0, len) |
| # else |
| # define zmemcpy memcpy |
| # define zmemcmp memcmp |
| # define zmemzero(dest, len) memset(dest, 0, len) |
| # endif |
| #else |
| extern void zmemcpy OF((Bytef* dest, const Bytef* source, uInt len)); |
| extern int zmemcmp OF((const Bytef* s1, const Bytef* s2, uInt len)); |
| extern void zmemzero OF((Bytef* dest, uInt len)); |
| #endif |
| |
| /* Diagnostic functions */ |
| #ifdef DEBUG |
| # include <stdio.h> |
| extern int z_verbose; |
| extern void z_error OF((char *m)); |
| # define Assert(cond,msg) {if(!(cond)) z_error(msg);} |
| # define Trace(x) {if (z_verbose>=0) fprintf x ;} |
| # define Tracev(x) {if (z_verbose>0) fprintf x ;} |
| # define Tracevv(x) {if (z_verbose>1) fprintf x ;} |
| # define Tracec(c,x) {if (z_verbose>0 && (c)) fprintf x ;} |
| # define Tracecv(c,x) {if (z_verbose>1 && (c)) fprintf x ;} |
| #else |
| # define Assert(cond,msg) |
| # define Trace(x) |
| # define Tracev(x) |
| # define Tracevv(x) |
| # define Tracec(c,x) |
| # define Tracecv(c,x) |
| #endif |
| |
| |
| voidpf zcalloc OF((voidpf opaque, unsigned items, unsigned size)); |
| void zcfree OF((voidpf opaque, voidpf ptr)); |
| |
| #define ZALLOC(strm, items, size) \ |
| (*((strm)->zalloc))((strm)->opaque, (items), (size)) |
| #define ZFREE(strm, addr) (*((strm)->zfree))((strm)->opaque, (voidpf)(addr)) |
| #define TRY_FREE(s, p) {if (p) ZFREE(s, p);} |
| |
| #endif /* ZUTIL_H */ |
