mirror of
https://github.com/darlinghq/darling-zlib.git
synced 2024-11-27 05:40:36 +00:00
00c836e325
This also moves some of the same from zconf.h to gzguts.h. A new function, gzflags(), was created to pass the compilation flags related to vsnprintf usage back to zlibCompileFlags() in zutil.c. In the process, various compiler configuration files were updated to include gzflags(), as well as the new gzgetc_() function added when the gzgetc() macro was introduced in a previous patch.
240 lines
6.2 KiB
C
240 lines
6.2 KiB
C
/* zutil.h -- internal interface and configuration of the compression library
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* Copyright (C) 1995-2010 Jean-loup Gailly.
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* For conditions of distribution and use, see copyright notice in zlib.h
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*/
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/* WARNING: this file should *not* be used by applications. It is
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part of the implementation of the compression library and is
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subject to change. Applications should only use zlib.h.
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*/
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/* @(#) $Id$ */
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#ifndef ZUTIL_H
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#define ZUTIL_H
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#if ((__GNUC__-0) * 10 + __GNUC_MINOR__-0 >= 33) && !defined(NO_VIZ)
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# define ZLIB_INTERNAL __attribute__((visibility ("hidden")))
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#else
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# define ZLIB_INTERNAL
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#endif
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#include "zlib.h"
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#ifdef STDC
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# if !(defined(_WIN32_WCE) && defined(_MSC_VER))
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# include <stddef.h>
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# endif
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# include <string.h>
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# include <stdlib.h>
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#endif
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#ifndef local
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# define local static
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#endif
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/* compile with -Dlocal if your debugger can't find static symbols */
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typedef unsigned char uch;
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typedef uch FAR uchf;
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typedef unsigned short ush;
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typedef ush FAR ushf;
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typedef unsigned long ulg;
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extern const char * const z_errmsg[10]; /* indexed by 2-zlib_error */
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/* (size given to avoid silly warnings with Visual C++) */
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#define ERR_MSG(err) z_errmsg[Z_NEED_DICT-(err)]
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#define ERR_RETURN(strm,err) \
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return (strm->msg = (char*)ERR_MSG(err), (err))
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/* To be used only when the state is known to be valid */
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/* common constants */
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#ifndef DEF_WBITS
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# define DEF_WBITS MAX_WBITS
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#endif
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/* default windowBits for decompression. MAX_WBITS is for compression only */
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#if MAX_MEM_LEVEL >= 8
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# define DEF_MEM_LEVEL 8
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#else
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# define DEF_MEM_LEVEL MAX_MEM_LEVEL
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#endif
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/* default memLevel */
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#define STORED_BLOCK 0
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#define STATIC_TREES 1
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#define DYN_TREES 2
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/* The three kinds of block type */
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#define MIN_MATCH 3
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#define MAX_MATCH 258
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/* The minimum and maximum match lengths */
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#define PRESET_DICT 0x20 /* preset dictionary flag in zlib header */
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/* target dependencies */
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#if defined(MSDOS) || (defined(WINDOWS) && !defined(WIN32))
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# define OS_CODE 0x00
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# if defined(__TURBOC__) || defined(__BORLANDC__)
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# if (__STDC__ == 1) && (defined(__LARGE__) || defined(__COMPACT__))
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/* Allow compilation with ANSI keywords only enabled */
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void _Cdecl farfree( void *block );
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void *_Cdecl farmalloc( unsigned long nbytes );
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# else
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# include <alloc.h>
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# endif
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# else /* MSC or DJGPP */
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# include <malloc.h>
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# endif
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#endif
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#ifdef AMIGA
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# define OS_CODE 0x01
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#endif
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#if defined(VAXC) || defined(VMS)
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# define OS_CODE 0x02
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# define F_OPEN(name, mode) \
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fopen((name), (mode), "mbc=60", "ctx=stm", "rfm=fix", "mrs=512")
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#endif
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#if defined(ATARI) || defined(atarist)
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# define OS_CODE 0x05
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#endif
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#ifdef OS2
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# define OS_CODE 0x06
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# ifdef M_I86
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# include <malloc.h>
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# endif
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#endif
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#if defined(MACOS) || defined(TARGET_OS_MAC)
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# define OS_CODE 0x07
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# if defined(__MWERKS__) && __dest_os != __be_os && __dest_os != __win32_os
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# include <unix.h> /* for fdopen */
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# else
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# ifndef fdopen
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# define fdopen(fd,mode) NULL /* No fdopen() */
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# endif
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# endif
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#endif
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#ifdef TOPS20
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# define OS_CODE 0x0a
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#endif
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#ifdef WIN32
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# ifndef __CYGWIN__ /* Cygwin is Unix, not Win32 */
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# define OS_CODE 0x0b
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# endif
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#endif
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#ifdef __50SERIES /* Prime/PRIMOS */
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# define OS_CODE 0x0f
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#endif
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#if defined(_BEOS_) || defined(RISCOS)
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# define fdopen(fd,mode) NULL /* No fdopen() */
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#endif
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#if (defined(_MSC_VER) && (_MSC_VER > 600)) && !defined __INTERIX
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# if defined(_WIN32_WCE)
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# define fdopen(fd,mode) NULL /* No fdopen() */
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# ifndef _PTRDIFF_T_DEFINED
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typedef int ptrdiff_t;
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# define _PTRDIFF_T_DEFINED
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# endif
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# else
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# define fdopen(fd,type) _fdopen(fd,type)
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# endif
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#endif
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#if defined(__BORLANDC__)
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#pragma warn -8004
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#pragma warn -8008
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#pragma warn -8066
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#endif
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/* provide prototypes for these when building zlib without LFS */
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#if !defined(_WIN32) && (!defined(_LARGEFILE64_SOURCE) || _LFS64_LARGEFILE-0 == 0)
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ZEXTERN uLong ZEXPORT adler32_combine64 OF((uLong, uLong, z_off_t));
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ZEXTERN uLong ZEXPORT crc32_combine64 OF((uLong, uLong, z_off_t));
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#endif
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/* common defaults */
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#ifndef OS_CODE
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# define OS_CODE 0x03 /* assume Unix */
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#endif
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#ifndef F_OPEN
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# define F_OPEN(name, mode) fopen((name), (mode))
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#endif
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/* functions */
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#if defined(pyr)
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# define NO_MEMCPY
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#endif
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#if defined(SMALL_MEDIUM) && !defined(_MSC_VER) && !defined(__SC__)
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/* Use our own functions for small and medium model with MSC <= 5.0.
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* You may have to use the same strategy for Borland C (untested).
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* The __SC__ check is for Symantec.
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*/
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# define NO_MEMCPY
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#endif
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#if defined(STDC) && !defined(HAVE_MEMCPY) && !defined(NO_MEMCPY)
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# define HAVE_MEMCPY
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#endif
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#ifdef HAVE_MEMCPY
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# ifdef SMALL_MEDIUM /* MSDOS small or medium model */
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# define zmemcpy _fmemcpy
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# define zmemcmp _fmemcmp
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# define zmemzero(dest, len) _fmemset(dest, 0, len)
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# else
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# define zmemcpy memcpy
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# define zmemcmp memcmp
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# define zmemzero(dest, len) memset(dest, 0, len)
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# endif
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#else
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void ZLIB_INTERNAL zmemcpy OF((Bytef* dest, const Bytef* source, uInt len));
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int ZLIB_INTERNAL zmemcmp OF((const Bytef* s1, const Bytef* s2, uInt len));
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void ZLIB_INTERNAL zmemzero OF((Bytef* dest, uInt len));
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#endif
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/* Diagnostic functions */
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#ifdef DEBUG
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# include <stdio.h>
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extern int ZLIB_INTERNAL z_verbose;
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extern void ZLIB_INTERNAL z_error OF((char *m));
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# define Assert(cond,msg) {if(!(cond)) z_error(msg);}
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# define Trace(x) {if (z_verbose>=0) fprintf x ;}
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# define Tracev(x) {if (z_verbose>0) fprintf x ;}
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# define Tracevv(x) {if (z_verbose>1) fprintf x ;}
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# define Tracec(c,x) {if (z_verbose>0 && (c)) fprintf x ;}
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# define Tracecv(c,x) {if (z_verbose>1 && (c)) fprintf x ;}
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#else
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# define Assert(cond,msg)
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# define Trace(x)
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# define Tracev(x)
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# define Tracevv(x)
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# define Tracec(c,x)
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# define Tracecv(c,x)
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#endif
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voidpf ZLIB_INTERNAL zcalloc OF((voidpf opaque, unsigned items,
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unsigned size));
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void ZLIB_INTERNAL zcfree OF((voidpf opaque, voidpf ptr));
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#define ZALLOC(strm, items, size) \
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(*((strm)->zalloc))((strm)->opaque, (items), (size))
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#define ZFREE(strm, addr) (*((strm)->zfree))((strm)->opaque, (voidpf)(addr))
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#define TRY_FREE(s, p) {if (p) ZFREE(s, p);}
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#endif /* ZUTIL_H */
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