Minox fixes

5 files changed, 294 insertions, 55 deletions

diff --git a/StormLib.bat b/StormLib.bat
deleted file mode 100644
index c2cc7de..0000000
--- a/StormLib.bat
+++ /dev/null
@@ -1,23 +0,0 @@
-@echo off
-rem Post-build batch for StormLib project
-rem Called as StormLib.bat $(PlatformName) $(ConfigurationName)
-rem Example: StormLib.bat x64 Debug
-
-if not exist ..\aaa goto exit
-
-copy src\StormPort.h ..\aaa\inc
-copy src\StormLib.h  ..\aaa\inc
-
-if x%1 == xWin32 goto PlatformWin32
-if x%1 == xx64 goto PlatformWin64
-goto exit
-
-:PlatformWin32
-copy .\bin\StormLib\%1\%2\*.lib    ..\aaa\lib32
-goto exit
-
-:PlatformWin64
-copy .\bin\StormLib\%1\%2\*.lib    ..\aaa\lib64
-goto exit
-
-:exit
diff --git a/StormLib_vs08.vcproj b/StormLib_vs08.vcproj
index dce22e1..3945360 100644
--- a/StormLib_vs08.vcproj
+++ b/StormLib_vs08.vcproj
@@ -80,7 +80,7 @@
 			/>
 			<Tool
 				Name="VCPostBuildEventTool"
-				CommandLine="StormLib.bat $(PlatformName) $(ConfigurationName)"
+				CommandLine="PostBuild.bat $(PlatformName) $(ConfigurationName)"
 			/>
 		</Configuration>
 		<Configuration
@@ -145,7 +145,7 @@
 			/>
 			<Tool
 				Name="VCPostBuildEventTool"
-				CommandLine="StormLib.bat $(PlatformName) $(ConfigurationName)"
+				CommandLine="PostBuild.bat $(PlatformName) $(ConfigurationName)"
 			/>
 		</Configuration>
 		<Configuration
@@ -209,7 +209,7 @@
 			/>
 			<Tool
 				Name="VCPostBuildEventTool"
-				CommandLine="StormLib.bat $(PlatformName) $(ConfigurationName)"
+				CommandLine="PostBuild.bat $(PlatformName) $(ConfigurationName)"
 			/>
 		</Configuration>
 		<Configuration
@@ -274,7 +274,7 @@
 			/>
 			<Tool
 				Name="VCPostBuildEventTool"
-				CommandLine="StormLib.bat $(PlatformName) $(ConfigurationName)"
+				CommandLine="PostBuild.bat $(PlatformName) $(ConfigurationName)"
 			/>
 		</Configuration>
 		<Configuration
@@ -336,7 +336,7 @@
 			/>
 			<Tool
 				Name="VCPostBuildEventTool"
-				CommandLine="StormLib.bat $(PlatformName) $(ConfigurationName)"
+				CommandLine="PostBuild.bat $(PlatformName) $(ConfigurationName)"
 			/>
 		</Configuration>
 		<Configuration
@@ -399,7 +399,7 @@
 			/>
 			<Tool
 				Name="VCPostBuildEventTool"
-				CommandLine="StormLib.bat $(PlatformName) $(ConfigurationName)"
+				CommandLine="PostBuild.bat $(PlatformName) $(ConfigurationName)"
 			/>
 		</Configuration>
 		<Configuration
@@ -461,7 +461,7 @@
 			/>
 			<Tool
 				Name="VCPostBuildEventTool"
-				CommandLine="StormLib.bat $(PlatformName) $(ConfigurationName)"
+				CommandLine="PostBuild.bat $(PlatformName) $(ConfigurationName)"
 			/>
 		</Configuration>
 		<Configuration
@@ -524,7 +524,7 @@
 			/>
 			<Tool
 				Name="VCPostBuildEventTool"
-				CommandLine="StormLib.bat $(PlatformName) $(ConfigurationName)"
+				CommandLine="PostBuild.bat $(PlatformName) $(ConfigurationName)"
 			/>
 		</Configuration>
 		<Configuration
@@ -588,7 +588,7 @@
 			/>
 			<Tool
 				Name="VCPostBuildEventTool"
-				CommandLine="StormLib.bat $(PlatformName) $(ConfigurationName)"
+				CommandLine="PostBuild.bat $(PlatformName) $(ConfigurationName)"
 			/>
 		</Configuration>
 		<Configuration
@@ -653,7 +653,7 @@
 			/>
 			<Tool
 				Name="VCPostBuildEventTool"
-				CommandLine="StormLib.bat $(PlatformName) $(ConfigurationName)"
+				CommandLine="PostBuild.bat $(PlatformName) $(ConfigurationName)"
 			/>
 		</Configuration>
 		<Configuration
@@ -717,7 +717,7 @@
 			/>
 			<Tool
 				Name="VCPostBuildEventTool"
-				CommandLine="StormLib.bat $(PlatformName) $(ConfigurationName)"
+				CommandLine="PostBuild.bat $(PlatformName) $(ConfigurationName)"
 			/>
 		</Configuration>
 		<Configuration
@@ -782,7 +782,7 @@
 			/>
 			<Tool
 				Name="VCPostBuildEventTool"
-				CommandLine="StormLib.bat $(PlatformName) $(ConfigurationName)"
+				CommandLine="PostBuild.bat $(PlatformName) $(ConfigurationName)"
 			/>
 		</Configuration>
 		<Configuration
@@ -844,7 +844,7 @@
 			/>
 			<Tool
 				Name="VCPostBuildEventTool"
-				CommandLine="StormLib.bat $(PlatformName) $(ConfigurationName)"
+				CommandLine="PostBuild.bat $(PlatformName) $(ConfigurationName)"
 			/>
 		</Configuration>
 		<Configuration
@@ -907,7 +907,7 @@
 			/>
 			<Tool
 				Name="VCPostBuildEventTool"
-				CommandLine="StormLib.bat $(PlatformName) $(ConfigurationName)"
+				CommandLine="PostBuild.bat $(PlatformName) $(ConfigurationName)"
 			/>
 		</Configuration>
 		<Configuration
@@ -969,7 +969,7 @@
 			/>
 			<Tool
 				Name="VCPostBuildEventTool"
-				CommandLine="StormLib.bat $(PlatformName) $(ConfigurationName)"
+				CommandLine="PostBuild.bat $(PlatformName) $(ConfigurationName)"
 			/>
 		</Configuration>
 		<Configuration
@@ -1032,7 +1032,7 @@
 			/>
 			<Tool
 				Name="VCPostBuildEventTool"
-				CommandLine="StormLib.bat $(PlatformName) $(ConfigurationName)"
+				CommandLine="PostBuild.bat $(PlatformName) $(ConfigurationName)"
 			/>
 		</Configuration>
 	</Configurations>
diff --git a/StormLib_vs17.bat b/StormLib_vs17.bat
new file mode 100644
index 0000000..153a276
--- /dev/null
+++ b/StormLib_vs17.bat
@@ -0,0 +1,44 @@
+@echo off
+rem Build file for VS 2017 (expected in %ProgramFiles%\Microsoft Visual Studio\2017)
+
+rem Save the values of INCLUDE, LIB and PATH
+set SAVE_INCLUDE=%INCLUDE%
+set SAVE_LIB=%LIB%
+set SAVE_PATH=%PATH%
+
+rem Determine where the program files are, both for 64-bit and 32-bit Windows
+if exist "%ProgramFiles%" set PROGRAM_FILES_DIR=%ProgramFiles%
+if exist "%ProgramFiles(x86)%" set PROGRAM_FILES_DIR=%ProgramFiles(x86)%
+
+rem Determine the installed version of Visual Studio (Professional/Enterprise)
+if exist "%PROGRAM_FILES_DIR%\Microsoft Visual Studio\2017\Professional\VC\Auxiliary\Build\vcvarsall.bat" set VCVARS_BAT=%PROGRAM_FILES_DIR%\Microsoft Visual Studio\2017\Professional\VC\Auxiliary\Build\vcvarsall.bat
+if exist "%PROGRAM_FILES_DIR%\Microsoft Visual Studio\2017\Enterprise\VC\Auxiliary\Build\vcvarsall.bat" set VCVARS_BAT=%PROGRAM_FILES_DIR%\Microsoft Visual Studio\2017\Enterprise\VC\Auxiliary\Build\vcvarsall.bat
+
+:BUILD_32BIT
+call "%VCVARS_BAT%" x86
+devenv.com StormLib_vs17.sln /project "StormLib" /build "DebugAD|Win32"
+devenv.com StormLib_vs17.sln /project "StormLib" /build "DebugAS|Win32"
+devenv.com StormLib_vs17.sln /project "StormLib" /build "DebugUD|Win32"
+devenv.com StormLib_vs17.sln /project "StormLib" /build "DebugUS|Win32"
+devenv.com StormLib_vs17.sln /project "StormLib" /build "ReleaseAD|Win32"
+devenv.com StormLib_vs17.sln /project "StormLib" /build "ReleaseAS|Win32"
+devenv.com StormLib_vs17.sln /project "StormLib" /build "ReleaseUD|Win32"
+devenv.com StormLib_vs17.sln /project "StormLib" /build "ReleaseUS|Win32"
+call :RestoreEnvVars
+
+:BUILD_64BIT
+call "%VCVARS_BAT%" x64
+devenv.com StormLib_vs17.sln /project "StormLib" /build "DebugAD|x64"
+devenv.com StormLib_vs17.sln /project "StormLib" /build "DebugAS|x64"
+devenv.com StormLib_vs17.sln /project "StormLib" /build "DebugUD|x64"
+devenv.com StormLib_vs17.sln /project "StormLib" /build "DebugUS|x64"
+devenv.com StormLib_vs17.sln /project "StormLib" /build "ReleaseAD|x64"
+devenv.com StormLib_vs17.sln /project "StormLib" /build "ReleaseAS|x64"
+devenv.com StormLib_vs17.sln /project "StormLib" /build "ReleaseUD|x64"
+devenv.com StormLib_vs17.sln /project "StormLib" /build "ReleaseUS|x64"
+call :RestoreEnvVars
+
+:RestoreEnvVars
+set INCLUDE=%SAVE_INCLUDE%
+set LIB=%SAVE_LIB%
+set PATH=%SAVE_PATH%
diff --git a/StormLib_vs17.vcxproj b/StormLib_vs17.vcxproj
index 6e9cd3f..c86a44a 100644
--- a/StormLib_vs17.vcxproj
+++ b/StormLib_vs17.vcxproj
@@ -318,7 +318,7 @@
       <OutputFile>./bin/$(ProjectName)/$(Platform)/$(Configuration)/$(TargetName).lib</OutputFile>
     </Lib>
     <PostBuildEvent>
-      <Command>StormLib.bat $(Platform) $(Configuration)</Command>
+      <Command>PostBuild.bat $(Platform) $(Configuration)</Command>
     </PostBuildEvent>
   </ItemDefinitionGroup>
   <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='DebugAD|x64'">
@@ -338,7 +338,7 @@
       <OutputFile>./bin/$(ProjectName)/$(Platform)/$(Configuration)/$(TargetName).lib</OutputFile>
     </Lib>
     <PostBuildEvent>
-      <Command>StormLib.bat $(Platform) $(Configuration)</Command>
+      <Command>PostBuild.bat $(Platform) $(Configuration)</Command>
     </PostBuildEvent>
   </ItemDefinitionGroup>
   <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='DebugAS|Win32'">
@@ -355,7 +355,7 @@
       <OutputFile>./bin/$(ProjectName)/$(Platform)/$(Configuration)/$(TargetName).lib</OutputFile>
     </Lib>
     <PostBuildEvent>
-      <Command>StormLib.bat $(Platform) $(Configuration)</Command>
+      <Command>PostBuild.bat $(Platform) $(Configuration)</Command>
     </PostBuildEvent>
   </ItemDefinitionGroup>
   <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='DebugAS|x64'">
@@ -375,7 +375,7 @@
       <OutputFile>./bin/$(ProjectName)/$(Platform)/$(Configuration)/$(TargetName).lib</OutputFile>
     </Lib>
     <PostBuildEvent>
-      <Command>StormLib.bat $(Platform) $(Configuration)</Command>
+      <Command>PostBuild.bat $(Platform) $(Configuration)</Command>
     </PostBuildEvent>
   </ItemDefinitionGroup>
   <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='ReleaseAD|Win32'">
@@ -391,7 +391,7 @@
       <OutputFile>./bin/$(ProjectName)/$(Platform)/$(Configuration)/$(TargetName).lib</OutputFile>
     </Lib>
     <PostBuildEvent>
-      <Command>StormLib.bat $(Platform) $(Configuration)</Command>
+      <Command>PostBuild.bat $(Platform) $(Configuration)</Command>
     </PostBuildEvent>
   </ItemDefinitionGroup>
   <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='ReleaseAD|x64'">
@@ -410,7 +410,7 @@
       <OutputFile>./bin/$(ProjectName)/$(Platform)/$(Configuration)/$(TargetName).lib</OutputFile>
     </Lib>
     <PostBuildEvent>
-      <Command>StormLib.bat $(Platform) $(Configuration)</Command>
+      <Command>PostBuild.bat $(Platform) $(Configuration)</Command>
     </PostBuildEvent>
   </ItemDefinitionGroup>
   <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='ReleaseAS|Win32'">
@@ -426,7 +426,7 @@
       <OutputFile>./bin/$(ProjectName)/$(Platform)/$(Configuration)/$(TargetName).lib</OutputFile>
     </Lib>
     <PostBuildEvent>
-      <Command>StormLib.bat $(Platform) $(Configuration)</Command>
+      <Command>PostBuild.bat $(Platform) $(Configuration)</Command>
     </PostBuildEvent>
   </ItemDefinitionGroup>
   <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='ReleaseAS|x64'">
@@ -445,7 +445,7 @@
       <OutputFile>./bin/$(ProjectName)/$(Platform)/$(Configuration)/$(TargetName).lib</OutputFile>
     </Lib>
     <PostBuildEvent>
-      <Command>StormLib.bat $(Platform) $(Configuration)</Command>
+      <Command>PostBuild.bat $(Platform) $(Configuration)</Command>
     </PostBuildEvent>
   </ItemDefinitionGroup>
   <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='DebugUD|Win32'">
@@ -462,7 +462,7 @@
       <OutputFile>./bin/$(ProjectName)/$(Platform)/$(Configuration)/$(TargetName).lib</OutputFile>
     </Lib>
     <PostBuildEvent>
-      <Command>StormLib.bat $(Platform) $(Configuration)</Command>
+      <Command>PostBuild.bat $(Platform) $(Configuration)</Command>
     </PostBuildEvent>
   </ItemDefinitionGroup>
   <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='DebugUD|x64'">
@@ -482,7 +482,7 @@
       <OutputFile>./bin/$(ProjectName)/$(Platform)/$(Configuration)/$(TargetName).lib</OutputFile>
     </Lib>
     <PostBuildEvent>
-      <Command>StormLib.bat $(Platform) $(Configuration)</Command>
+      <Command>PostBuild.bat $(Platform) $(Configuration)</Command>
     </PostBuildEvent>
   </ItemDefinitionGroup>
   <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='DebugUS|Win32'">
@@ -499,7 +499,7 @@
       <OutputFile>./bin/$(ProjectName)/$(Platform)/$(Configuration)/$(TargetName).lib</OutputFile>
     </Lib>
     <PostBuildEvent>
-      <Command>StormLib.bat $(Platform) $(Configuration)</Command>
+      <Command>PostBuild.bat $(Platform) $(Configuration)</Command>
     </PostBuildEvent>
   </ItemDefinitionGroup>
   <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='DebugUS|x64'">
@@ -519,7 +519,7 @@
       <OutputFile>./bin/$(ProjectName)/$(Platform)/$(Configuration)/$(TargetName).lib</OutputFile>
     </Lib>
     <PostBuildEvent>
-      <Command>StormLib.bat $(Platform) $(Configuration)</Command>
+      <Command>PostBuild.bat $(Platform) $(Configuration)</Command>
     </PostBuildEvent>
   </ItemDefinitionGroup>
   <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='ReleaseUD|Win32'">
@@ -535,7 +535,7 @@
       <OutputFile>./bin/$(ProjectName)/$(Platform)/$(Configuration)/$(TargetName).lib</OutputFile>
     </Lib>
     <PostBuildEvent>
-      <Command>StormLib.bat $(Platform) $(Configuration)</Command>
+      <Command>PostBuild.bat $(Platform) $(Configuration)</Command>
     </PostBuildEvent>
   </ItemDefinitionGroup>
   <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='ReleaseUD|x64'">
@@ -554,7 +554,7 @@
       <OutputFile>./bin/$(ProjectName)/$(Platform)/$(Configuration)/$(TargetName).lib</OutputFile>
     </Lib>
     <PostBuildEvent>
-      <Command>StormLib.bat $(Platform) $(Configuration)</Command>
+      <Command>PostBuild.bat $(Platform) $(Configuration)</Command>
     </PostBuildEvent>
   </ItemDefinitionGroup>
   <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='ReleaseUS|Win32'">
@@ -570,7 +570,7 @@
       <OutputFile>./bin/$(ProjectName)/$(Platform)/$(Configuration)/$(TargetName).lib</OutputFile>
     </Lib>
     <PostBuildEvent>
-      <Command>StormLib.bat $(Platform) $(Configuration)</Command>
+      <Command>PostBuild.bat $(Platform) $(Configuration)</Command>
     </PostBuildEvent>
   </ItemDefinitionGroup>
   <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='ReleaseUS|x64'">
@@ -589,7 +589,7 @@
       <OutputFile>./bin/$(ProjectName)/$(Platform)/$(Configuration)/$(TargetName).lib</OutputFile>
     </Lib>
     <PostBuildEvent>
-      <Command>StormLib.bat $(Platform) $(Configuration)</Command>
+      <Command>PostBuild.bat $(Platform) $(Configuration)</Command>
     </PostBuildEvent>
   </ItemDefinitionGroup>
   <ItemGroup>
diff --git a/src/zlib/gzguts.h b/src/zlib/gzguts.h
new file mode 100644
index 0000000..990a4d2
--- /dev/null
+++ b/src/zlib/gzguts.h
@@ -0,0 +1,218 @@
+/* gzguts.h -- zlib internal header definitions for gz* operations
+ * Copyright (C) 2004, 2005, 2010, 2011, 2012, 2013, 2016 Mark Adler
+ * For conditions of distribution and use, see copyright notice in zlib.h
+ */
+
+#ifdef _LARGEFILE64_SOURCE
+#  ifndef _LARGEFILE_SOURCE
+#    define _LARGEFILE_SOURCE 1
+#  endif
+#  ifdef _FILE_OFFSET_BITS
+#    undef _FILE_OFFSET_BITS
+#  endif
+#endif
+
+#ifdef HAVE_HIDDEN
+#  define ZLIB_INTERNAL __attribute__((visibility ("hidden")))
+#else
+#  define ZLIB_INTERNAL
+#endif
+
+#include <stdio.h>
+#include "zlib.h"
+#ifdef STDC
+#  include <string.h>
+#  include <stdlib.h>
+#  include <limits.h>
+#endif
+
+#ifndef _POSIX_SOURCE
+#  define _POSIX_SOURCE
+#endif
+#include <fcntl.h>
+
+#ifdef _WIN32
+#  include <stddef.h>
+#endif
+
+#if defined(__TURBOC__) || defined(_MSC_VER) || defined(_WIN32)
+#  include <io.h>
+#endif
+
+#if defined(_WIN32) || defined(__CYGWIN__)
+#  define WIDECHAR
+#endif
+
+#ifdef WINAPI_FAMILY
+#  define open _open
+#  define read _read
+#  define write _write
+#  define close _close
+#endif
+
+#ifdef NO_DEFLATE       /* for compatibility with old definition */
+#  define NO_GZCOMPRESS
+#endif
+
+#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
+
+#if defined(MSDOS) && defined(__BORLANDC__) && (BORLANDC > 0x410)
+#  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
+#  ifdef VMS
+#    define NO_vsnprintf
+#  endif
+#  ifdef __OS400__
+#    define NO_vsnprintf
+#  endif
+#  ifdef __MVS__
+#    define NO_vsnprintf
+#  endif
+#endif
+
+/* unlike snprintf (which is required in C99), _snprintf does not guarantee
+   null termination of the result -- however this is only used in gzlib.c where
+   the result is assured to fit in the space provided */
+#if defined(_MSC_VER) && _MSC_VER < 1900
+#  define snprintf _snprintf
+#endif
+
+#ifndef local
+#  define local static
+#endif
+/* since "static" is used to mean two completely different things in C, we
+   define "local" for the non-static meaning of "static", for readability
+   (compile with -Dlocal if your debugger can't find static symbols) */
+
+/* gz* functions always use library allocation functions */
+#ifndef STDC
+  extern voidp  malloc OF((uInt size));
+  extern void   free   OF((voidpf ptr));
+#endif
+
+/* get errno and strerror definition */
+#if defined UNDER_CE
+#  include <windows.h>
+#  define zstrerror() gz_strwinerror((DWORD)GetLastError())
+#else
+#  ifndef NO_STRERROR
+#    include <errno.h>
+#    define zstrerror() strerror(errno)
+#  else
+#    define zstrerror() "stdio error (consult errno)"
+#  endif
+#endif
+
+/* provide prototypes for these when building zlib without LFS */
+#if !defined(_LARGEFILE64_SOURCE) || _LFS64_LARGEFILE-0 == 0
+    ZEXTERN gzFile ZEXPORT gzopen64 OF((const char *, const char *));
+    ZEXTERN z_off64_t ZEXPORT gzseek64 OF((gzFile, z_off64_t, int));
+    ZEXTERN z_off64_t ZEXPORT gztell64 OF((gzFile));
+    ZEXTERN z_off64_t ZEXPORT gzoffset64 OF((gzFile));
+#endif
+
+/* default memLevel */
+#if MAX_MEM_LEVEL >= 8
+#  define DEF_MEM_LEVEL 8
+#else
+#  define DEF_MEM_LEVEL  MAX_MEM_LEVEL
+#endif
+
+/* default i/o buffer size -- double this for output when reading (this and
+   twice this must be able to fit in an unsigned type) */
+#define GZBUFSIZE 8192
+
+/* gzip modes, also provide a little integrity check on the passed structure */
+#define GZ_NONE 0
+#define GZ_READ 7247
+#define GZ_WRITE 31153
+#define GZ_APPEND 1     /* mode set to GZ_WRITE after the file is opened */
+
+/* values for gz_state how */
+#define LOOK 0      /* look for a gzip header */
+#define COPY 1      /* copy input directly */
+#define GZIP 2      /* decompress a gzip stream */
+
+/* internal gzip file state data structure */
+typedef struct {
+        /* exposed contents for gzgetc() macro */
+    struct gzFile_s x;      /* "x" for exposed */
+                            /* x.have: number of bytes available at x.next */
+                            /* x.next: next output data to deliver or write */
+                            /* x.pos: current position in uncompressed data */
+        /* used for both reading and writing */
+    int mode;               /* see gzip modes above */
+    int fd;                 /* file descriptor */
+    char *path;             /* path or fd for error messages */
+    unsigned size;          /* buffer size, zero if not allocated yet */
+    unsigned want;          /* requested buffer size, default is GZBUFSIZE */
+    unsigned char *in;      /* input buffer (double-sized when writing) */
+    unsigned char *out;     /* output buffer (double-sized when reading) */
+    int direct;             /* 0 if processing gzip, 1 if transparent */
+        /* just for reading */
+    int how;                /* 0: get header, 1: copy, 2: decompress */
+    z_off64_t start;        /* where the gzip data started, for rewinding */
+    int eof;                /* true if end of input file reached */
+    int past;               /* true if read requested past end */
+        /* just for writing */
+    int level;              /* compression level */
+    int strategy;           /* compression strategy */
+        /* seek request */
+    z_off64_t skip;         /* amount to skip (already rewound if backwards) */
+    int seek;               /* true if seek request pending */
+        /* error information */
+    int err;                /* error code */
+    char *msg;              /* error message */
+        /* zlib inflate or deflate stream */
+    z_stream strm;          /* stream structure in-place (not a pointer) */
+} gz_state;
+typedef gz_state FAR *gz_statep;
+
+/* shared functions */
+void ZLIB_INTERNAL gz_error OF((gz_statep, int, const char *));
+#if defined UNDER_CE
+char ZLIB_INTERNAL *gz_strwinerror OF((DWORD error));
+#endif
+
+/* GT_OFF(x), where x is an unsigned value, is true if x > maximum z_off64_t
+   value -- needed when comparing unsigned to z_off64_t, which is signed
+   (possible z_off64_t types off_t, off64_t, and long are all signed) */
+#ifdef INT_MAX
+#  define GT_OFF(x) (sizeof(int) == sizeof(z_off64_t) && (x) > INT_MAX)
+#else
+unsigned ZLIB_INTERNAL gz_intmax OF((void));
+#  define GT_OFF(x) (sizeof(int) == sizeof(z_off64_t) && (x) > gz_intmax())
+#endif