1 files changed, 166 insertions, 0 deletions

diff --git a/zutil.h b/zutil.h
new file mode 100644
index 0000000..a1108e6
--- /dev/null
+++ b/zutil.h
@@ -0,0 +1,166 @@
+/* zutil.h -- internal interface and configuration of the compression library
+ * Copyright (C) 1995 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: zutil.h,v 1.4 1995/04/14 10:22:17 jloup Exp $ */
+
+#ifndef _Z_UTIL_H
+#define _Z_UTIL_H
+
+#include "zlib.h"
+
+#ifdef MSDOS
+#   include <stddef.h>
+#else
+    extern int errno;
+#endif
+
+#ifndef local
+#  define local static
+#endif
+/* compile with -Dlocal if your debugger can't find static symbols */
+
+typedef unsigned char  uch;
+typedef unsigned short ush;
+typedef unsigned long  ulg;
+
+extern char *z_errmsg[]; /* indexed by 1-zlib_error */
+
+#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 */
+
+        /* common constants */
+
+#define DEFLATED   8
+
+#ifndef WBITS
+# define WBITS   15 /* 32K window */
+#endif
+
+#ifndef MEM_LEVEL
+# define MEM_LEVEL  8
+#endif
+
+#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 */
+
+        /* target dependencies */
+
+#ifdef MSDOS
+#  define OS_CODE  0x00
+#  ifdef __TURBOC__
+#    include <alloc.h>
+#    define exit(n) _exit(n)
+#  else /* MSC */
+#    include <malloc.h>
+#  endif
+#endif
+
+#ifdef OS2
+#  define OS_CODE  0x06
+#endif
+
+#ifdef WIN32 /* Windows NT */
+#  define OS_CODE  0x0b
+#endif
+
+#if defined(VAXC) || defined(VMS)
+#  define OS_CODE  0x02
+#  define FOPEN(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
+#endif
+
+#ifdef __50SERIES /* Prime/PRIMOS */
+#  define OS_CODE  0x0F
+#endif
+
+#ifdef TOPS20
+#  define OS_CODE  0x0a
+#endif
+
+        /* Common defaults */
+
+#ifndef OS_CODE
+#  define OS_CODE  0x03  /* assume Unix */
+#endif
+
+#ifndef FOPEN
+#  define FOPEN(name, mode) fopen((name), (mode))
+#endif
+
+         /* functions */
+
+#ifdef HAVE_STRERROR
+   extern char *strerror __P((int));
+#  define zstrerror(errnum) strerror(errnum)
+#else
+#  define zstrerror(errnum) ""
+#endif
+
+#if defined(__STDC__) && !defined(HAVE_MEMCPY)
+#  define HAVE_MEMCPY
+#endif
+#ifdef HAVE_MEMCPY
+#  define zmemcpy memcpy
+#  define zmemzero(dest, len) memset(dest, 0, len)
+#else
+   extern void zmemcpy  __P((Byte* dest, Byte* source, uInt len));
+   extern void zmemzero __P((Byte* dest, uInt len));
+#endif
+
+/* Diagnostic functions */
+#ifdef DEBUG
+#  include <stdio.h>
+#  ifndef verbose
+#    define verbose 0
+#  endif
+#  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 ;}
+#else
+#  define Assert(cond,msg)
+#  define Trace(x)
+#  define Tracev(x)
+#  define Tracevv(x)
+#  define Tracec(c,x)
+#  define Tracecv(c,x)
+#endif
+
+
+extern void z_error    __P((char *m));
+
+voidp zcalloc __P((voidp opaque, unsigned items, unsigned size));
+void  zcfree  __P((voidp opaque, voidp ptr));
+
+#define ZALLOC(strm, items, size) (*strm->zalloc)(strm->opaque, items, size)
+#define ZFREE(strm, addr)         (*strm->zfree) (strm->opaque, (voidp)addr)
+#define TRY_FREE(s, p) {if (p) ZFREE(s, p);}
+
+#endif /* _Z_UTIL_H */