5128eecc9f 2011-02-23        kinaba: /* zutil.h -- internal interface and configuration of the compression library
5128eecc9f 2011-02-23        kinaba:  * Copyright (C) 1995-1998 Jean-loup Gailly.
5128eecc9f 2011-02-23        kinaba:  * For conditions of distribution and use, see copyright notice in zlib.h
5128eecc9f 2011-02-23        kinaba:  */
5128eecc9f 2011-02-23        kinaba: 
5128eecc9f 2011-02-23        kinaba: /* WARNING: this file should *not* be used by applications. It is
5128eecc9f 2011-02-23        kinaba:    part of the implementation of the compression library and is
5128eecc9f 2011-02-23        kinaba:    subject to change. Applications should only use zlib.h.
5128eecc9f 2011-02-23        kinaba:  */
5128eecc9f 2011-02-23        kinaba: 
5128eecc9f 2011-02-23        kinaba: /* @(#) $Id$ */
5128eecc9f 2011-02-23        kinaba: 
5128eecc9f 2011-02-23        kinaba: #ifndef _Z_UTIL_H
5128eecc9f 2011-02-23        kinaba: #define _Z_UTIL_H
5128eecc9f 2011-02-23        kinaba: 
5128eecc9f 2011-02-23        kinaba: #include "zlib.h"
5128eecc9f 2011-02-23        kinaba: 
5128eecc9f 2011-02-23        kinaba: #ifdef STDC
5128eecc9f 2011-02-23        kinaba: #  include <stddef.h>
5128eecc9f 2011-02-23        kinaba: #  include <string.h>
5128eecc9f 2011-02-23        kinaba: #  include <stdlib.h>
5128eecc9f 2011-02-23        kinaba: #endif
5128eecc9f 2011-02-23        kinaba: #ifdef NO_ERRNO_H
5128eecc9f 2011-02-23        kinaba:     extern int errno;
5128eecc9f 2011-02-23        kinaba: #else
5128eecc9f 2011-02-23        kinaba: #   include <errno.h>
5128eecc9f 2011-02-23        kinaba: #endif
5128eecc9f 2011-02-23        kinaba: 
5128eecc9f 2011-02-23        kinaba: #ifndef local
5128eecc9f 2011-02-23        kinaba: #  define local static
5128eecc9f 2011-02-23        kinaba: #endif
5128eecc9f 2011-02-23        kinaba: /* compile with -Dlocal if your debugger can't find static symbols */
5128eecc9f 2011-02-23        kinaba: 
5128eecc9f 2011-02-23        kinaba: typedef unsigned char  uch;
5128eecc9f 2011-02-23        kinaba: typedef uch FAR uchf;
5128eecc9f 2011-02-23        kinaba: typedef unsigned short ush;
5128eecc9f 2011-02-23        kinaba: typedef ush FAR ushf;
5128eecc9f 2011-02-23        kinaba: typedef unsigned long  ulg;
5128eecc9f 2011-02-23        kinaba: 
5128eecc9f 2011-02-23        kinaba: extern const char *z_errmsg[10]; /* indexed by 2-zlib_error */
5128eecc9f 2011-02-23        kinaba: /* (size given to avoid silly warnings with Visual C++) */
5128eecc9f 2011-02-23        kinaba: 
5128eecc9f 2011-02-23        kinaba: #define ERR_MSG(err) z_errmsg[Z_NEED_DICT-(err)]
5128eecc9f 2011-02-23        kinaba: 
5128eecc9f 2011-02-23        kinaba: #define ERR_RETURN(strm,err) \
5128eecc9f 2011-02-23        kinaba:   return (strm->msg = (char*)ERR_MSG(err), (err))
5128eecc9f 2011-02-23        kinaba: /* To be used only when the state is known to be valid */
5128eecc9f 2011-02-23        kinaba: 
5128eecc9f 2011-02-23        kinaba:         /* common constants */
5128eecc9f 2011-02-23        kinaba: 
5128eecc9f 2011-02-23        kinaba: #ifndef DEF_WBITS
5128eecc9f 2011-02-23        kinaba: #  define DEF_WBITS MAX_WBITS
5128eecc9f 2011-02-23        kinaba: #endif
5128eecc9f 2011-02-23        kinaba: /* default windowBits for decompression. MAX_WBITS is for compression only */
5128eecc9f 2011-02-23        kinaba: 
5128eecc9f 2011-02-23        kinaba: #if MAX_MEM_LEVEL >= 8
5128eecc9f 2011-02-23        kinaba: #  define DEF_MEM_LEVEL 8
5128eecc9f 2011-02-23        kinaba: #else
5128eecc9f 2011-02-23        kinaba: #  define DEF_MEM_LEVEL  MAX_MEM_LEVEL
5128eecc9f 2011-02-23        kinaba: #endif
5128eecc9f 2011-02-23        kinaba: /* default memLevel */
5128eecc9f 2011-02-23        kinaba: 
5128eecc9f 2011-02-23        kinaba: #define STORED_BLOCK 0
5128eecc9f 2011-02-23        kinaba: #define STATIC_TREES 1
5128eecc9f 2011-02-23        kinaba: #define DYN_TREES    2
5128eecc9f 2011-02-23        kinaba: /* The three kinds of block type */
5128eecc9f 2011-02-23        kinaba: 
5128eecc9f 2011-02-23        kinaba: #define MIN_MATCH  3
5128eecc9f 2011-02-23        kinaba: #define MAX_MATCH  258
5128eecc9f 2011-02-23        kinaba: /* The minimum and maximum match lengths */
5128eecc9f 2011-02-23        kinaba: 
5128eecc9f 2011-02-23        kinaba: #define PRESET_DICT 0x20 /* preset dictionary flag in zlib header */
5128eecc9f 2011-02-23        kinaba: 
5128eecc9f 2011-02-23        kinaba:         /* target dependencies */
5128eecc9f 2011-02-23        kinaba: 
5128eecc9f 2011-02-23        kinaba: #ifdef MSDOS
5128eecc9f 2011-02-23        kinaba: #  define OS_CODE  0x00
5128eecc9f 2011-02-23        kinaba: #  if defined(__TURBOC__) || defined(__BORLANDC__)
5128eecc9f 2011-02-23        kinaba: #    if(__STDC__ == 1) && (defined(__LARGE__) || defined(__COMPACT__))
5128eecc9f 2011-02-23        kinaba:        /* Allow compilation with ANSI keywords only enabled */
5128eecc9f 2011-02-23        kinaba:        void _Cdecl farfree( void *block );
5128eecc9f 2011-02-23        kinaba:        void *_Cdecl farmalloc( unsigned long nbytes );
5128eecc9f 2011-02-23        kinaba: #    else
5128eecc9f 2011-02-23        kinaba: #     include <alloc.h>
5128eecc9f 2011-02-23        kinaba: #    endif
5128eecc9f 2011-02-23        kinaba: #  else /* MSC or DJGPP */
5128eecc9f 2011-02-23        kinaba: #    include <malloc.h>
5128eecc9f 2011-02-23        kinaba: #  endif
5128eecc9f 2011-02-23        kinaba: #endif
5128eecc9f 2011-02-23        kinaba: 
5128eecc9f 2011-02-23        kinaba: #ifdef OS2
5128eecc9f 2011-02-23        kinaba: #  define OS_CODE  0x06
5128eecc9f 2011-02-23        kinaba: #endif
5128eecc9f 2011-02-23        kinaba: 
5128eecc9f 2011-02-23        kinaba: #ifdef WIN32 /* Window 95 & Windows NT */
5128eecc9f 2011-02-23        kinaba: #  define OS_CODE  0x0b
5128eecc9f 2011-02-23        kinaba: #endif
5128eecc9f 2011-02-23        kinaba: 
5128eecc9f 2011-02-23        kinaba: #if defined(VAXC) || defined(VMS)
5128eecc9f 2011-02-23        kinaba: #  define OS_CODE  0x02
5128eecc9f 2011-02-23        kinaba: #  define F_OPEN(name, mode) \
5128eecc9f 2011-02-23        kinaba:      fopen((name), (mode), "mbc=60", "ctx=stm", "rfm=fix", "mrs=512")
5128eecc9f 2011-02-23        kinaba: #endif
5128eecc9f 2011-02-23        kinaba: 
5128eecc9f 2011-02-23        kinaba: #ifdef AMIGA
5128eecc9f 2011-02-23        kinaba: #  define OS_CODE  0x01
5128eecc9f 2011-02-23        kinaba: #endif
5128eecc9f 2011-02-23        kinaba: 
5128eecc9f 2011-02-23        kinaba: #if defined(ATARI) || defined(atarist)
5128eecc9f 2011-02-23        kinaba: #  define OS_CODE  0x05
5128eecc9f 2011-02-23        kinaba: #endif
5128eecc9f 2011-02-23        kinaba: 
5128eecc9f 2011-02-23        kinaba: #if defined(MACOS) || defined(TARGET_OS_MAC)
5128eecc9f 2011-02-23        kinaba: #  define OS_CODE  0x07
5128eecc9f 2011-02-23        kinaba: #  if defined(__MWERKS__) && __dest_os != __be_os && __dest_os != __win32_os
5128eecc9f 2011-02-23        kinaba: #    include <unix.h> /* for fdopen */
5128eecc9f 2011-02-23        kinaba: #  else
5128eecc9f 2011-02-23        kinaba: #    ifndef fdopen
5128eecc9f 2011-02-23        kinaba: #      define fdopen(fd,mode) NULL /* No fdopen() */
5128eecc9f 2011-02-23        kinaba: #    endif
5128eecc9f 2011-02-23        kinaba: #  endif
5128eecc9f 2011-02-23        kinaba: #endif
5128eecc9f 2011-02-23        kinaba: 
5128eecc9f 2011-02-23        kinaba: #ifdef __50SERIES /* Prime/PRIMOS */
5128eecc9f 2011-02-23        kinaba: #  define OS_CODE  0x0F
5128eecc9f 2011-02-23        kinaba: #endif
5128eecc9f 2011-02-23        kinaba: 
5128eecc9f 2011-02-23        kinaba: #ifdef TOPS20
5128eecc9f 2011-02-23        kinaba: #  define OS_CODE  0x0a
5128eecc9f 2011-02-23        kinaba: #endif
5128eecc9f 2011-02-23        kinaba: 
5128eecc9f 2011-02-23        kinaba: #if defined(_BEOS_) || defined(RISCOS)
5128eecc9f 2011-02-23        kinaba: #  define fdopen(fd,mode) NULL /* No fdopen() */
5128eecc9f 2011-02-23        kinaba: #endif
5128eecc9f 2011-02-23        kinaba: 
5128eecc9f 2011-02-23        kinaba: #if (defined(_MSC_VER) && (_MSC_VER > 600))
5128eecc9f 2011-02-23        kinaba: #  define fdopen(fd,type)  _fdopen(fd,type)
5128eecc9f 2011-02-23        kinaba: #endif
5128eecc9f 2011-02-23        kinaba: 
5128eecc9f 2011-02-23        kinaba: 
5128eecc9f 2011-02-23        kinaba:         /* Common defaults */
5128eecc9f 2011-02-23        kinaba: 
5128eecc9f 2011-02-23        kinaba: #ifndef OS_CODE
5128eecc9f 2011-02-23        kinaba: #  define OS_CODE  0x03  /* assume Unix */
5128eecc9f 2011-02-23        kinaba: #endif
5128eecc9f 2011-02-23        kinaba: 
5128eecc9f 2011-02-23        kinaba: #ifndef F_OPEN
5128eecc9f 2011-02-23        kinaba: #  define F_OPEN(name, mode) fopen((name), (mode))
5128eecc9f 2011-02-23        kinaba: #endif
5128eecc9f 2011-02-23        kinaba: 
5128eecc9f 2011-02-23        kinaba:          /* functions */
5128eecc9f 2011-02-23        kinaba: 
5128eecc9f 2011-02-23        kinaba: #ifdef HAVE_STRERROR
5128eecc9f 2011-02-23        kinaba:    extern char *strerror OF((int));
5128eecc9f 2011-02-23        kinaba: #  define zstrerror(errnum) strerror(errnum)
5128eecc9f 2011-02-23        kinaba: #else
5128eecc9f 2011-02-23        kinaba: #  define zstrerror(errnum) ""
5128eecc9f 2011-02-23        kinaba: #endif
5128eecc9f 2011-02-23        kinaba: 
5128eecc9f 2011-02-23        kinaba: #if defined(pyr)
5128eecc9f 2011-02-23        kinaba: #  define NO_MEMCPY
5128eecc9f 2011-02-23        kinaba: #endif
5128eecc9f 2011-02-23        kinaba: #if defined(SMALL_MEDIUM) && !defined(_MSC_VER) && !defined(__SC__)
5128eecc9f 2011-02-23        kinaba:  /* Use our own functions for small and medium model with MSC <= 5.0.
5128eecc9f 2011-02-23        kinaba:   * You may have to use the same strategy for Borland C (untested).
5128eecc9f 2011-02-23        kinaba:   * The __SC__ check is for Symantec.
5128eecc9f 2011-02-23        kinaba:   */
5128eecc9f 2011-02-23        kinaba: #  define NO_MEMCPY
5128eecc9f 2011-02-23        kinaba: #endif
5128eecc9f 2011-02-23        kinaba: #if defined(STDC) && !defined(HAVE_MEMCPY) && !defined(NO_MEMCPY)
5128eecc9f 2011-02-23        kinaba: #  define HAVE_MEMCPY
5128eecc9f 2011-02-23        kinaba: #endif
5128eecc9f 2011-02-23        kinaba: #ifdef HAVE_MEMCPY
5128eecc9f 2011-02-23        kinaba: #  ifdef SMALL_MEDIUM /* MSDOS small or medium model */
5128eecc9f 2011-02-23        kinaba: #    define zmemcpy _fmemcpy
5128eecc9f 2011-02-23        kinaba: #    define zmemcmp _fmemcmp
5128eecc9f 2011-02-23        kinaba: #    define zmemzero(dest, len) _fmemset(dest, 0, len)
5128eecc9f 2011-02-23        kinaba: #  else
5128eecc9f 2011-02-23        kinaba: #    define zmemcpy memcpy
5128eecc9f 2011-02-23        kinaba: #    define zmemcmp memcmp
5128eecc9f 2011-02-23        kinaba: #    define zmemzero(dest, len) memset(dest, 0, len)
5128eecc9f 2011-02-23        kinaba: #  endif
5128eecc9f 2011-02-23        kinaba: #else
5128eecc9f 2011-02-23        kinaba:    extern void zmemcpy  OF((Bytef* dest, const Bytef* source, uInt len));
5128eecc9f 2011-02-23        kinaba:    extern int  zmemcmp  OF((const Bytef* s1, const Bytef* s2, uInt len));
5128eecc9f 2011-02-23        kinaba:    extern void zmemzero OF((Bytef* dest, uInt len));
5128eecc9f 2011-02-23        kinaba: #endif
5128eecc9f 2011-02-23        kinaba: 
5128eecc9f 2011-02-23        kinaba: /* Diagnostic functions */
5128eecc9f 2011-02-23        kinaba: #ifdef DEBUG
5128eecc9f 2011-02-23        kinaba: #  include <stdio.h>
5128eecc9f 2011-02-23        kinaba:    extern int z_verbose;
5128eecc9f 2011-02-23        kinaba:    extern void z_error    OF((char *m));
5128eecc9f 2011-02-23        kinaba: #  define Assert(cond,msg) {if(!(cond)) z_error(msg);}
5128eecc9f 2011-02-23        kinaba: #  define Trace(x) {if (z_verbose>=0) fprintf x ;}
5128eecc9f 2011-02-23        kinaba: #  define Tracev(x) {if (z_verbose>0) fprintf x ;}
5128eecc9f 2011-02-23        kinaba: #  define Tracevv(x) {if (z_verbose>1) fprintf x ;}
5128eecc9f 2011-02-23        kinaba: #  define Tracec(c,x) {if (z_verbose>0 && (c)) fprintf x ;}
5128eecc9f 2011-02-23        kinaba: #  define Tracecv(c,x) {if (z_verbose>1 && (c)) fprintf x ;}
5128eecc9f 2011-02-23        kinaba: #else
5128eecc9f 2011-02-23        kinaba: #  define Assert(cond,msg)
5128eecc9f 2011-02-23        kinaba: #  define Trace(x)
5128eecc9f 2011-02-23        kinaba: #  define Tracev(x)
5128eecc9f 2011-02-23        kinaba: #  define Tracevv(x)
5128eecc9f 2011-02-23        kinaba: #  define Tracec(c,x)
5128eecc9f 2011-02-23        kinaba: #  define Tracecv(c,x)
5128eecc9f 2011-02-23        kinaba: #endif
5128eecc9f 2011-02-23        kinaba: 
5128eecc9f 2011-02-23        kinaba: 
5128eecc9f 2011-02-23        kinaba: typedef uLong (ZEXPORT *check_func) OF((uLong check, const Bytef *buf,
5128eecc9f 2011-02-23        kinaba: 				       uInt len));
5128eecc9f 2011-02-23        kinaba: voidpf zcalloc OF((voidpf opaque, unsigned items, unsigned size));
5128eecc9f 2011-02-23        kinaba: void   zcfree  OF((voidpf opaque, voidpf ptr));
5128eecc9f 2011-02-23        kinaba: 
5128eecc9f 2011-02-23        kinaba: #define ZALLOC(strm, items, size) \
5128eecc9f 2011-02-23        kinaba:            (*((strm)->zalloc))((strm)->opaque, (items), (size))
5128eecc9f 2011-02-23        kinaba: #define ZFREE(strm, addr)  (*((strm)->zfree))((strm)->opaque, (voidpf)(addr))
5128eecc9f 2011-02-23        kinaba: #define TRY_FREE(s, p) {if (p) ZFREE(s, p);}
5128eecc9f 2011-02-23        kinaba: 
5128eecc9f 2011-02-23        kinaba: #endif /* _Z_UTIL_H */