/* zutil.h -- internal interface and configuration of the compression library
- * Copyright (C) 1995 Jean-loup Gailly.
+ * Copyright (C) 1995-2006 Jean-loup Gailly.
* For conditions of distribution and use, see copyright notice in zlib.h
*/
subject to change. Applications should only use zlib.h.
*/
-/* $Id: zutil.h,v 1.8 1995/05/02 15:44:46 jloup Exp $ */
+/* @(#) $Id$ */
-#ifndef _Z_UTIL_H
-#define _Z_UTIL_H
+#ifndef ZUTIL_H
+#define ZUTIL_H
+#define ZLIB_INTERNAL
#include "zlib.h"
-#ifdef MSDOS
-# include <stddef.h>
-# include <errno.h>
-#else
- extern int errno;
-#endif
#ifdef STDC
+# ifndef _WIN32_WCE
+# include <stddef.h>
+# endif
# include <string.h>
+# include <stdlib.h>
+#endif
+#if defined(NO_ERRNO_H) || defined(_WIN32_WCE)
+# ifdef _WIN32_WCE
+ /* The Microsoft C Run-Time Library for Windows CE doesn't have
+ * errno. We define it as a global variable to simplify porting.
+ * Its value is always 0 and should not be used. We rename it to
+ * avoid conflict with other libraries that use the same workaround.
+ */
+# define errno z_errno
+# endif
+ extern int errno;
+#else
+# include <errno.h>
#endif
#ifndef local
/* 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 char *z_errmsg[]; /* indexed by 1-zlib_error */
+extern const char * const z_errmsg[10]; /* indexed by 2-zlib_error */
+/* (size given to avoid silly warnings with Visual C++) */
-#define ERR_RETURN(strm,err) return (strm->msg=z_errmsg[1-err], err)
-/* To be used only when the state is known to be valid */
+#define ERR_MSG(err) z_errmsg[Z_NEED_DICT-(err)]
- /* common constants */
+#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 */
-#define DEFLATED 8
+ /* common constants */
-#define DEF_WBITS 15
+#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 MAX_MATCH 258
/* The minimum and maximum match lengths */
- /* target dependencies */
+#define PRESET_DICT 0x20 /* preset dictionary flag in zlib header */
-#ifdef MSDOS
+ /* target dependencies */
+
+#if defined(MSDOS) || (defined(WINDOWS) && !defined(WIN32))
# define OS_CODE 0x00
-# ifdef __TURBOC__
-# include <alloc.h>
-# else /* MSC */
+# 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 OS2
-# define OS_CODE 0x06
-#endif
-
-#ifdef WIN32 /* Windows NT */
-# define OS_CODE 0x0b
+#ifdef AMIGA
+# define OS_CODE 0x01
#endif
#if defined(VAXC) || defined(VMS)
# define OS_CODE 0x02
-# define FOPEN(name, mode) \
+# define F_OPEN(name, mode) \
fopen((name), (mode), "mbc=60", "ctx=stm", "rfm=fix", "mrs=512")
#endif
-#ifdef AMIGA
-# define OS_CODE 0x01
-#endif
-
#if defined(ATARI) || defined(atarist)
# define OS_CODE 0x05
#endif
-#ifdef MACOS
-# define OS_CODE 0x07
+#ifdef OS2
+# define OS_CODE 0x06
+# ifdef M_I86
+ #include <malloc.h>
+# endif
#endif
-#ifdef __50SERIES /* Prime/PRIMOS */
-# define OS_CODE 0x0F
+#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
- /* Common defaults */
+#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
+
+ /* common defaults */
#ifndef OS_CODE
# define OS_CODE 0x03 /* assume Unix */
#endif
-#ifndef FOPEN
-# define FOPEN(name, mode) fopen((name), (mode))
+#ifndef F_OPEN
+# define F_OPEN(name, mode) fopen((name), (mode))
#endif
/* functions */
-#ifdef HAVE_STRERROR
- extern char *strerror __P((int));
-# define zstrerror(errnum) strerror(errnum)
-#else
-# define zstrerror(errnum) ""
+#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)
+# define vsnprintf _vsnprintf
+# endif
+# endif
+# ifdef __SASC
+# define NO_vsnprintf
+# endif
+#endif
+#ifdef VMS
+# define NO_vsnprintf
#endif
-#if defined(STDC) && !defined(HAVE_MEMCPY)
+#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
-# define zmemcpy memcpy
-# define zmemzero(dest, len) memset(dest, 0, len)
+# 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 __P((Byte* dest, Byte* source, uInt len));
- extern void zmemzero __P((Byte* dest, uInt len));
+ 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>
-# ifndef verbose
-# define verbose 0
-# endif
+ extern int z_verbose;
+ extern void z_error OF((char *m));
# define Assert(cond,msg) {if(!(cond)) z_error(msg);}
-# define Trace(x) fprintf x
-# define Tracev(x) {if (verbose) fprintf x ;}
-# define Tracevv(x) {if (verbose>1) fprintf x ;}
-# define Tracec(c,x) {if (verbose && (c)) fprintf x ;}
-# define Tracecv(c,x) {if (verbose>1 && (c)) fprintf x ;}
+# 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)
#endif
-typedef uLong (*check_func) __P((uLong check, Byte *buf, uInt len));
-
-extern void z_error __P((char *m));
-
-voidp zcalloc __P((voidp opaque, unsigned items, unsigned size));
-void zcfree __P((voidp opaque, voidp ptr));
+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, (voidp)(addr))
+#define ZFREE(strm, addr) (*((strm)->zfree))((strm)->opaque, (voidpf)(addr))
#define TRY_FREE(s, p) {if (p) ZFREE(s, p);}
-#endif /* _Z_UTIL_H */
+#endif /* ZUTIL_H */
projects / zlib.git / blobdiff