/*
  Copyright (c) 1990-2009 Info-ZIP.  All rights reserved.

  See the accompanying file LICENSE, version 2009-Jan-02 or later
  (the contents of which are also included in unzip.h) for terms of use.
  If, for some reason, all these files are missing, the Info-ZIP license
  also may be found at:  ftp://ftp.info-zip.org/pub/infozip/license.html
*/
/*---------------------------------------------------------------------------

  unzpriv.h

  This header file contains private (internal) macros, typedefs, prototypes
  and global-variable declarations used by all of the UnZip source files.
  In a prior life it was part of the main unzip.h header, but now it is only
  included by that header if UNZIP_INTERNAL is defined.

  ---------------------------------------------------------------------------*/



#ifndef __unzpriv_h   /* prevent multiple inclusions */
#define __unzpriv_h

/* First thing: Signal all following code that we compile UnZip utilities! */
#ifndef UNZIP
#  define UNZIP
#endif

/* GRR 960204:  MORE defined here in preparation for removal altogether */
#ifndef MORE
# ifndef RISCOS
#  define MORE
# endif
#endif

/* fUnZip should never need to be reentrant */
#ifdef FUNZIP
#  ifdef REENTRANT
#    undef REENTRANT
#  endif
#  ifdef DLL
#    undef DLL
#  endif
#  ifdef SFX            /* fUnZip is NOT the sfx stub! */
#    undef SFX
#  endif
#  ifdef USE_BZIP2      /* fUnZip does not support bzip2 decompression */
#    undef USE_BZIP2
#  endif
#endif

#if (defined(USE_ZLIB) && !defined(HAVE_ZL_INFLAT64) && !defined(NO_DEFLATE64))
   /* zlib does not (yet?) provide Deflate64(tm) support */
#  define NO_DEFLATE64
#endif

#ifdef NO_DEFLATE64
   /* disable support for Deflate64(tm) */
#  ifdef USE_DEFLATE64
#    undef USE_DEFLATE64
#  endif
#else
   /* enable Deflate64(tm) support unless compiling for SFX stub */
#  if (!defined(USE_DEFLATE64) && !defined(SFX))
#    define USE_DEFLATE64
#  endif
#endif

/* disable bzip2 support for SFX stub, unless explicitly requested */
#if (defined(SFX) && !defined(BZIP2_SFX) && defined(USE_BZIP2))
#  undef USE_BZIP2
#endif

#if (defined(NO_VMS_TEXT_CONV) || defined(VMS))
#  ifdef VMS_TEXT_CONV
#    undef VMS_TEXT_CONV
#  endif
#else
#  if (!defined(VMS_TEXT_CONV) && !defined(SFX))
#    define VMS_TEXT_CONV
#  endif
#endif

/* Enable -B option per default on specific systems, to allow backing up
 * files that would be overwritten.
 * (This list of systems must be kept in sync with the list of systems
 * that add the B_flag to the UzpOpts structure, see unzip.h.)
 */
#if (!defined(NO_UNIXBACKUP) && !defined(UNIXBACKUP))
#  if defined(UNIX) || defined(OS2) || defined(WIN32)
#    define UNIXBACKUP
#  endif
#endif

#if (defined(DLL) && !defined(REENTRANT))
#  define REENTRANT
#endif

#if (!defined(DYNAMIC_CRC_TABLE) && !defined(FUNZIP))
#  define DYNAMIC_CRC_TABLE
#endif

#if (defined(DYNAMIC_CRC_TABLE) && !defined(REENTRANT))
#  ifndef DYNALLOC_CRCTAB
#    define DYNALLOC_CRCTAB
#  endif
#endif

/*---------------------------------------------------------------------------
    OS-dependent configuration for UnZip internals
  ---------------------------------------------------------------------------*/

/* Some compiler distributions for Win32/i386 systems try to emulate
 * a Unix (POSIX-compatible) environment.
 */
#if (defined(WIN32) && defined(UNIX))
   /* UnZip does not support merging both ports in a single executable. */
#  if (defined(FORCE_WIN32_OVER_UNIX) && defined(FORCE_UNIX_OVER_WIN32))
     /* conflicting choice requests -> we prefer the Win32 environment */
#    undef FORCE_UNIX_OVER_WIN32
#  endif
#  ifdef FORCE_WIN32_OVER_UNIX
     /* native Win32 support was explicitly requested... */
#    undef UNIX
#  else
     /* use the POSIX (Unix) emulation features by default... */
#    undef WIN32
#  endif
#endif

/* bad or (occasionally?) missing stddef.h: */
#if (defined(M_XENIX) || defined(DNIX))
#  define NO_STDDEF_H
#endif

#if (defined(M_XENIX) && !defined(M_UNIX))   /* SCO Xenix only, not SCO Unix */
#  define SCO_XENIX
#  define NO_LIMITS_H        /* no limits.h, but MODERN defined */
#  define NO_UID_GID         /* no uid_t/gid_t */
#  define size_t int
#endif

#ifdef realix   /* Modcomp Real/IX, real-time SysV.3 variant */
#  define SYSV
#  define NO_UID_GID         /* no uid_t/gid_t */
#endif

#if (defined(_AIX) && !defined(_ALL_SOURCE))
#  define _ALL_SOURCE
#endif

#if defined(apollo)          /* defines __STDC__ */
#    define NO_STDLIB_H
#endif

#ifdef DNIX
#  define SYSV
#  define SHORT_NAMES         /* 14-char limitation on path components */
/* #  define FILENAME_MAX  14 */
#  define FILENAME_MAX  NAME_MAX    /* GRR:  experiment */
#endif

#if (defined(SYSTEM_FIVE) || defined(__SYSTEM_FIVE))
#  ifndef SYSV
#    define SYSV
#  endif
#endif /* SYSTEM_FIVE || __SYSTEM_FIVE */
#if (defined(M_SYSV) || defined(M_SYS5))
#  ifndef SYSV
#    define SYSV
#  endif
#endif /* M_SYSV || M_SYS5 */
/* __SVR4 and __svr4__ catch Solaris on at least some combos of compiler+OS */
#if (defined(__SVR4) || defined(__svr4__) || defined(sgi) || defined(__hpux))
#  ifndef SYSV
#    define SYSV
#  endif
#endif /* __SVR4 || __svr4__ || sgi || __hpux */
#if (defined(LINUX) || defined(__QNX__))
#  ifndef SYSV
#    define SYSV
#  endif
#endif /* LINUX || __QNX__ */

#if (defined(ultrix) || defined(__ultrix) || defined(bsd4_2))
#  if (!defined(BSD) && !defined(SYSV))
#    define BSD
#  endif
#endif /* ultrix || __ultrix || bsd4_2 */
#if (defined(sun) || defined(pyr) || defined(CONVEX))
#  if (!defined(BSD) && !defined(SYSV))
#    define BSD
#  endif
#endif /* sun || pyr || CONVEX */

#ifdef pyr  /* Pyramid:  has BSD and AT&T "universes" */
#  ifdef BSD
#    define pyr_bsd
#    define USE_STRINGS_H  /* instead of more common string.h */
#    define ZMEM           /* ZMEM now uses bcopy/bzero: not in AT&T universe */
#  endif                   /* (AT&T memcpy claimed to be very slow, though) */
#  define DECLARE_ERRNO
#endif /* pyr */

/* stat() bug for Borland, VAX C RTL, and Atari ST MiNT on TOS
 * filesystems:  returns 0 for wildcards!  (returns 0xffffffff on Minix
 * filesystem or `U:' drive under Atari MiNT.)  Watcom C was previously
 * included on this list; it would be good to know what version the problem
 * was fixed at, if it did exist.  */
#if (defined(__TURBOC__) && !defined(WIN32))
/*#  define WILD_STAT_BUG*/
#endif
#if (defined(VMS) || defined(__MINT__))
#  define WILD_STAT_BUG
#endif

/*---------------------------------------------------------------------------
    OS-dependent includes
  ---------------------------------------------------------------------------*/


/*---------------------------------------------------------------------------
    API (DLL) section:
  ---------------------------------------------------------------------------*/

#ifdef DLL
#  define MAIN   UZ_EXP UzpMain   /* was UzpUnzip */
#  ifdef OS2DLL
#    undef Info
#    define REDIRECTC(c)             varputchar(__G__ c)
#    define REDIRECTPRINT(buf,size)  varmessage(__G__ buf, size)
#    define FINISH_REDIRECT()        finish_REXX_redirect(__G)
#  else
#    define REDIRECTC(c)
#    define REDIRECTPRINT(buf,size)  0
#    define FINISH_REDIRECT()        close_redirect(__G)
#  endif
#endif

/*---------------------------------------------------------------------------
    Acorn RISCOS section:
  ---------------------------------------------------------------------------*/

#ifdef RISCOS
#  include "acorn/riscos.h"
#endif

/*---------------------------------------------------------------------------
    Amiga section:
  ---------------------------------------------------------------------------*/

#ifdef AMIGA
#  include "amiga/amiga.h"
#endif

/*---------------------------------------------------------------------------
    AOS/VS section (somewhat similar to Unix, apparently):
  ---------------------------------------------------------------------------*/

#ifdef AOS_VS
#  ifdef __FILEIO_C
#    include "aosvs/aosvs.h"
#  endif
#endif

/*---------------------------------------------------------------------------
    Atari ST section:
  ---------------------------------------------------------------------------*/

#ifdef ATARI
#  include <time.h>
#  include <stat.h>
#  include <fcntl.h>
#  include <limits.h>
#  define SYMLINKS
#  define EXE_EXTENSION  ".tos"
#  ifndef DATE_FORMAT
#    define DATE_FORMAT  DF_DMY
#  endif
#  define DIR_END        '/'
#  define INT_SPRINTF
#  define timezone      _timezone
#  define lenEOL        2
#  define PutNativeEOL  {*q++ = native(CR); *q++ = native(LF);}
#  undef SHORT_NAMES
#  if (!defined(NOTIMESTAMP) && !defined(TIMESTAMP))
#    define TIMESTAMP
#  endif
#endif

/*---------------------------------------------------------------------------
    AtheOS section:
  ---------------------------------------------------------------------------*/

#ifdef __ATHEOS__
#  include "atheos/athcfg.h"
#endif

/*---------------------------------------------------------------------------
    BeOS section:
  ---------------------------------------------------------------------------*/

#ifdef __BEOS__
#  include "beos/beocfg.h"
#endif

/*---------------------------------------------------------------------------
    Human68k/X680x0 section:
  ---------------------------------------------------------------------------*/

#ifdef __human68k__
   /* DO NOT DEFINE DOS_OS2 HERE!  If Human68k is so much */
   /*  like MS-DOS and/or OS/2, create DOS_H68_OS2 macro. */
#  if (!defined(_MBCS) && !defined(NO_MBCS))
     /* enable MBCS support by default for this system */
#    define _MBCS
#  endif
#  if (defined(_MBCS) && defined(NO_MBCS))
     /* disable MBCS support when explicitely requested */
#    undef _MBCS
#  endif
#  include <time.h>
#  include <fcntl.h>
#  include <io.h>
#  include <conio.h>
#  include <sys/stat.h>
#  ifdef HAVE_MBSTRING_H
#    include <mbstring.h>
#  endif
#  ifdef HAVE_MBCTYPE_H
#    include <mbctype.h>
#  else
#    ifndef _ismbblead
#      define _ismbblead(c) (0x80 <= (c) && ((c) < 0xa0 || 0xe0 <= (c)))
#    endif
#  endif
#  ifndef DATE_FORMAT
#    define DATE_FORMAT DF_YMD   /* Japanese standard */
#  endif
#  define lenEOL        1
#  define PutNativeEOL  *q++ = native(LF);
#  define INT_SPRINTF
#  define SYMLINKS
#  ifdef SFX
#    define MAIN main_sfx
#  endif
#endif

/*---------------------------------------------------------------------------
    Mac section:
  ---------------------------------------------------------------------------*/

#ifdef MACOS
#  include "maccfg.h"
#endif /* MACOS */

/*---------------------------------------------------------------------------
    MS-DOS, OS/2, FLEXOS section:
  ---------------------------------------------------------------------------*/

#ifdef WINDLL
#  ifdef MORE
#    undef MORE
#  endif
#  ifdef OS2_EAS
#    undef OS2_EAS
#  endif
#endif

#if (defined(_MSC_VER) || (defined(M_I86) && !defined(__WATCOMC__)))
#  ifndef MSC
#    define MSC               /* This should work for older MSC, too!  */
#  endif
#endif

#if (defined(MSDOS) || defined(OS2) || defined(FLEXOS))
#  include <sys/types.h>      /* off_t, time_t, dev_t, ... */
#  include <sys/stat.h>
#  include <io.h>             /* lseek(), open(), setftime(), dup(), creat() */
#  include <time.h>           /* localtime() */
#  include <fcntl.h>          /* O_BINARY for open() w/o CR/LF translation */

#  ifdef OS2                  /* defined for all OS/2 compilers */
#    include "os2/os2cfg.h"
#  else
#    ifdef FLEXOS
#      include "flexos/flxcfg.h"
#    else
#      include "msdos/doscfg.h"
#    endif
#  endif

#  if (defined(_MSC_VER) && (_MSC_VER == 700) && !defined(GRR))
    /*
     * ARGH.  MSC 7.0 libraries think times are based on 1899 Dec 31 00:00, not
     *  1970 Jan 1 00:00.  So we have to diddle time_t's appropriately:  add or
     *  subtract 70 years' worth of seconds; i.e., number of days times 86400;
     *  i.e., (70*365 regular days + 17 leap days + 1 1899 day) * 86400 ==
     *  (25550 + 17 + 1) * 86400 == 2209075200 seconds.  We know time_t is an
     *  unsigned long (ulg) on the only system with this bug.
     */
#    define TIMET_TO_NATIVE(x)  (x) += (ulg)2209075200L;
#    define NATIVE_TO_TIMET(x)  (x) -= (ulg)2209075200L;
#  endif
#  if (defined(__BORLANDC__) && (__BORLANDC__ >= 0x0450))
#    define timezone      _timezone
#  endif
#  if (defined(__GO32__) || defined(FLEXOS))
#    define DIR_END       '/'
#  else
#    define DIR_END       '\\'  /* OS uses '\\' as directory separator */
#    define DIR_END2      '/'   /* also check for '/' (RTL may convert) */
#  endif
#  ifdef DATE_FORMAT
#    undef DATE_FORMAT
#  endif
#  define DATE_FORMAT     dateformat()
#  define lenEOL          2
#  define PutNativeEOL    {*q++ = native(CR); *q++ = native(LF);}
#  if (!defined(NO_EF_UT_TIME) && !defined(USE_EF_UT_TIME))
#    define USE_EF_UT_TIME
#  endif
#endif /* MSDOS || OS2 || FLEXOS */

/*---------------------------------------------------------------------------
    MTS section (piggybacks UNIX, I think):
  ---------------------------------------------------------------------------*/

#ifdef MTS
#  include <sys/types.h>      /* off_t, time_t, dev_t, ... */
#  include <sys/stat.h>
#  include <sys/file.h>       /* MTS uses this instead of fcntl.h */
#  include <timeb.h>
#  include <time.h>
#  include <unix.h>           /* some important non-ANSI routines */
#  define mkdir(s,n) (-1)     /* no "make directory" capability */
#  define EBCDIC              /* set EBCDIC conversion on */
#  define NO_STRNICMP         /* unzip's is as good the one in MTS */
#  define USE_FWRITE
#  define close_outfile()  fclose(G.outfile)   /* can't set time on files */
#  define umask(n)            /* don't have umask() on MTS */
#  define FOPWT         "w"   /* open file for writing in TEXT mode */
#  ifndef DATE_FORMAT
#    define DATE_FORMAT DF_MDY
#  endif
#  define lenEOL        1
#  define PutNativeEOL  *q++ = native(LF);
#endif /* MTS */

 /*---------------------------------------------------------------------------
    Novell Netware NLM section
  ---------------------------------------------------------------------------*/

#ifdef NLM
#  include "netware/nlmcfg.h"
#endif

 /*---------------------------------------------------------------------------
    QDOS section
  ---------------------------------------------------------------------------*/

#ifdef QDOS
#  define DIRENT
#  include <fcntl.h>
#  include <unistd.h>
#  include <sys/stat.h>
#  include <time.h>
#  include "qdos/izqdos.h"
#  ifndef DATE_FORMAT
#    define DATE_FORMAT DF_MDY
#  endif
#  define lenEOL        1
#  define PutNativeEOL  *q++ = native(LF);
#  define DIR_END       '_'
#  define RETURN        QReturn
#  undef PATH_MAX
#  define PATH_MAX      36
#  if (!defined(NOTIMESTAMP) && !defined(TIMESTAMP))
#    define TIMESTAMP
#  endif
#  define SCREENSIZE(ttrows, ttcols)  screensize(ttrows, ttcols)
#  define SCREENWIDTH 80
#endif

/*---------------------------------------------------------------------------
    Tandem NSK section:
  ---------------------------------------------------------------------------*/

#ifdef TANDEM
#  include "tandem.h"
#  include <fcntl.h>
#  ifndef __INT32
     /* We are compiling with non-WIDE memory model, int = 16 bits */
#    ifndef INT_16BIT
#      define INT_16BIT   /* report "int" size is 16-bit to inflate setup */
#    endif
#    ifdef USE_DEFLATE64
       /* Following required for 64k WSIZE of Deflate64 support */
#      define MED_MEM     /* else OUTBUFSIZ is 64K and fails in do_string */
#      define INBUFSIZ  8192  /* but larger buffer for real OSes */
#    endif
#  endif
   /* use a single LF delimiter so that writes to 101 text files work */
#  define PutNativeEOL  *q++ = native(LF);
#  define lenEOL        1
#  ifndef DATE_FORMAT
#    define DATE_FORMAT  DF_DMY
#  endif
#  define SCREENLINES   25
   /* USE_EF_UT_TIME is set in tandem.h */
#  define RESTORE_UIDGID
#  define NO_STRNICMP
#endif

/*---------------------------------------------------------------------------
    THEOS section:
  ---------------------------------------------------------------------------*/

#ifdef THEOS
#  include "theos/thscfg.h"
#endif

/*---------------------------------------------------------------------------
    TOPS-20 section:
  ---------------------------------------------------------------------------*/

#ifdef TOPS20
#  include <sys/types.h>        /* off_t, time_t, dev_t, ... */
#  include <sys/stat.h>
#  include <sys/param.h>
#  include <sys/time.h>
#  include <sys/timeb.h>
#  include <sys/file.h>
#  include <timex.h>
#  include <monsym.h>           /* get amazing monsym() macro */
   extern int open(), close(), read();
   extern int stat(), unlink(), jsys(), fcntl();
   extern long lseek(), dup(), creat();
#  define strchr    index       /* GRR: necessary? */
#  define strrchr   rindex
#  define REALLY_SHORT_SYMS
#  define NO_MKDIR
#  ifndef HAVE_STRNICMP
#    define NO_STRNICMP           /* probably not provided by TOPS20 C RTL  */
#  endif
#  define DIR_BEG       '<'
#  define DIR_END       '>'
#  define DIR_EXT       ".directory"
#  ifndef DATE_FORMAT
#    define DATE_FORMAT DF_MDY
#  endif
#  define EXE_EXTENSION ".exe"  /* just a guess... */
#endif /* TOPS20 */

/*---------------------------------------------------------------------------
    Unix section:
  ---------------------------------------------------------------------------*/

#ifdef UNIX
#  include "unix/unxcfg.h"
#endif /* UNIX */

/*---------------------------------------------------------------------------
    VM/CMS and MVS section:
  ---------------------------------------------------------------------------*/

#ifdef CMS_MVS
#  include "vmmvs.h"
#  define CLOSE_INFILE()  close_infile(__G)
#endif

/*---------------------------------------------------------------------------
    VMS section:
  ---------------------------------------------------------------------------*/

#ifdef VMS
#  include "vms/vmscfg.h"
#endif /* VMS */

/*---------------------------------------------------------------------------
    Win32 (Windows 95/NT) section:
  ---------------------------------------------------------------------------*/

#if (defined(WIN32) && !defined(POCKET_UNZIP) && !defined(_WIN32_WCE))
#  include "win32/w32cfg.h"
#endif

/*---------------------------------------------------------------------------
    Win32 Windows CE section (also POCKET_UNZIP)
  ---------------------------------------------------------------------------*/

#if (defined(_WIN32_WCE) || defined(POCKET_UNZIP))
#  include "wince/wcecfg.h"
#endif



/* ----------------------------------------------------------------------------
   MUST BE AFTER LARGE FILE INCLUDES
   ---------------------------------------------------------------------------- */
/* This stuff calls in types and messes up large file includes.  It needs to
   go after large file defines in local includes.
   I am guessing that moving them here probably broke some ports, but hey.
   10/31/2004 EG */
/* ----------------------------------------------------------------------------
   Common includes
   ---------------------------------------------------------------------------- */

/* Some ports apply specific adjustments which must be in effect before
   reading the "standard" include headers.
 */

#ifdef EFT
#  define Z_OFF_T off_t  /* Amdahl UTS nonsense ("extended file types") */
#else
#if (defined(UNIX) && defined(_FILE_OFFSET_BITS) && (_FILE_OFFSET_BITS == 64))
#  define Z_OFF_T off_t /* 64bit offsets to support 2GB < zipfile size < 4GB */
#else
#  define Z_OFF_T long
#endif
#endif

#ifndef ZOFF_T_DEFINED
   typedef Z_OFF_T zoff_t;
#  define ZOFF_T_DEFINED
#endif
#ifndef Z_STAT_DEFINED
   typedef struct stat z_stat;
#  define Z_STAT_DEFINED
#endif

#ifndef MINIX            /* Minix needs it after all the other includes (?) */
#  include <stdio.h>
#endif

#include <ctype.h>       /* skip for VMS, to use tolower() function? */
#include <errno.h>       /* used in mapname() */
#ifdef USE_STRINGS_H
#  include <strings.h>   /* strcpy, strcmp, memcpy, index/rindex, etc. */
#else
#  include <string.h>    /* strcpy, strcmp, memcpy, strchr/strrchr, etc. */
#endif
#if (defined(MODERN) && !defined(NO_LIMITS_H))
#  include <limits.h>    /* MAX/MIN constant symbols for system types... */
#endif

/* this include must be down here for SysV.4, for some reason... */
#include <signal.h>      /* used in unzip.c, fileio.c */


#ifdef MODERN
#  ifndef NO_STDDEF_H
#    include <stddef.h>
#  endif
#  ifndef NO_STDLIB_H
#    include <stdlib.h>  /* standard library prototypes, malloc(), etc. */
#  endif
   typedef size_t extent;
#else /* !MODERN */
#  ifndef AOS_VS         /* mostly modern? */
     Z_OFF_T lseek();
#    ifdef VAXC          /* not fully modern, but has stdlib.h and void */
#      include <stdlib.h>
#    else
       char *malloc();
#    endif /* ?VAXC */
#  endif /* !AOS_VS */
   typedef unsigned int extent;
#endif /* ?MODERN */




/*************/
/*  Defines  */
/*************/

#define UNZIP_BZ2VERS   46
#ifdef ZIP64_SUPPORT
# ifdef USE_BZIP2
#  define UNZIP_VERSION   UNZIP_BZ2VERS
# else
#  define UNZIP_VERSION   45
# endif
#else
#ifdef USE_DEFLATE64
#  define UNZIP_VERSION   21   /* compatible with PKUNZIP 4.0 */
#else
#  define UNZIP_VERSION   20   /* compatible with PKUNZIP 2.0 */
#endif
#endif
#define VMS_UNZIP_VERSION 42   /* if OS-needed-to-extract is VMS:  can do */

#if (defined(MSDOS) || defined(OS2))
#  define DOS_OS2
#endif

#if (defined(OS2) || defined(WIN32))
#  define OS2_W32
#endif

#if (defined(DOS_OS2) || defined(WIN32))
#  define DOS_OS2_W32
#  define DOS_W32_OS2          /* historical:  don't use */
#endif

#if (defined(DOS_OS2_W32) || defined(__human68k__))
#  define DOS_H68_OS2_W32
#endif

#if (defined(DOS_OS2) || defined(FLEXOS))
#  define DOS_FLX_OS2
#endif

#if (defined(DOS_OS2_W32) || defined(FLEXOS))
#  define DOS_FLX_OS2_W32
#endif

#if (defined(DOS_H68_OS2_W32) || defined(FLEXOS))
#  define DOS_FLX_H68_OS2_W32
#endif

#if (defined(DOS_FLX_OS2) || defined(NLM))
#  define DOS_FLX_NLM_OS2
#endif

#if (defined(DOS_FLX_OS2_W32) || defined(NLM))
#  define DOS_FLX_NLM_OS2_W32
#endif

#if (defined(DOS_FLX_H68_OS2_W32) || defined(NLM))
#  define DOS_FLX_H68_NLM_OS2_W32
#endif

#if (defined(TOPS20) || defined(VMS))
#  define T20_VMS
#endif

#if (defined(MSDOS) || defined(T20_VMS))
#  define DOS_T20_VMS
#endif

#if (defined(__ATHEOS__) || defined(__BEOS__))
#  define ATH_BEO
#endif

#if (defined(ATH_BEO) || defined(UNIX))
#  define ATH_BEO_UNX
#endif

#if (defined(ATH_BEO_UNX) || defined(THEOS))
#  define ATH_BEO_THS_UNX
#endif

/* clean up with a few defaults */
#ifndef DIR_END
#  define DIR_END       '/'     /* last char before program name or filename */
#endif
#ifndef DATE_FORMAT
# ifdef DATEFMT_ISO_DEFAULT
#  define DATE_FORMAT   DF_YMD  /* defaults to invariant ISO-style */
# else
#  define DATE_FORMAT   DF_MDY  /* defaults to US convention */
# endif
#endif
#ifndef DATE_SEPCHAR
#  define DATE_SEPCHAR  '-'
#endif
#ifndef CLOSE_INFILE
#  define CLOSE_INFILE()  close(G.zipfd)
#endif
#ifndef RETURN
#  define RETURN        return  /* only used in main() */
#endif
#ifndef EXIT
#  define EXIT          exit
#endif
#ifndef USAGE
#  define USAGE(ret)    usage(__G__ (ret))    /* used in unzip.c, zipinfo.c */
#endif
#ifndef TIMET_TO_NATIVE         /* everybody but MSC 7.0 and Macintosh */
#  define TIMET_TO_NATIVE(x)
#  define NATIVE_TO_TIMET(x)
#endif
#ifndef STRNICMP
#  ifdef NO_STRNICMP
#    define STRNICMP zstrnicmp
#  else
#    define STRNICMP strnicmp
#  endif
#endif


#if (defined(DOS_FLX_NLM_OS2_W32) || defined(ATH_BEO_UNX) || defined(RISCOS))
#  ifndef HAVE_UNLINK
#    define HAVE_UNLINK
#  endif
#endif
#if (defined(AOS_VS) || defined(ATARI)) /* GRR: others? */
#  ifndef HAVE_UNLINK
#    define HAVE_UNLINK
#  endif
#endif

/* OS-specific exceptions to the "ANSI <--> INT_SPRINTF" rule */

#if (!defined(PCHAR_SPRINTF) && !defined(INT_SPRINTF))
#  if (defined(SYSV) || defined(CONVEX) || defined(NeXT) || defined(BSD4_4))
#    define INT_SPRINTF      /* sprintf() returns int:  SysVish/Posix */
#  endif
#  if (defined(DOS_FLX_NLM_OS2_W32) || defined(VMS) || defined(AMIGA))
#    define INT_SPRINTF      /* sprintf() returns int:  ANSI */
#  endif
#  if (defined(ultrix) || defined(__ultrix)) /* Ultrix 4.3 and newer */
#    if (defined(POSIX) || defined(__POSIX))
#      define INT_SPRINTF    /* sprintf() returns int:  ANSI/Posix */
#    endif
#    ifdef __GNUC__
#      define PCHAR_SPRINTF  /* undetermined actual return value */
#    endif
#  endif
#  if (defined(__osf__) || defined(_AIX) || defined(CMS_MVS) || defined(THEOS))
#    define INT_SPRINTF      /* sprintf() returns int:  ANSI/Posix */
#  endif
#  if defined(sun)
#    define PCHAR_SPRINTF    /* sprintf() returns char *:  SunOS cc *and* gcc */
#  endif
#endif

/* defaults that we hope will take care of most machines in the future */

#if (!defined(PCHAR_SPRINTF) && !defined(INT_SPRINTF))
#  ifdef __STDC__
#    define INT_SPRINTF      /* sprintf() returns int:  ANSI */
#  endif
#  ifndef INT_SPRINTF
#    define PCHAR_SPRINTF    /* sprintf() returns char *:  BSDish */
#  endif
#endif

#define MSG_STDERR(f)  (f & 1)        /* bit 0:  0 = stdout, 1 = stderr */
#define MSG_INFO(f)    ((f & 6) == 0) /* bits 1 and 2:  0 = info */
#define MSG_WARN(f)    ((f & 6) == 2) /* bits 1 and 2:  1 = warning */
#define MSG_ERROR(f)   ((f & 6) == 4) /* bits 1 and 2:  2 = error */
#define MSG_FATAL(f)   ((f & 6) == 6) /* bits 1 and 2:  (3 = fatal error) */
#define MSG_ZFN(f)     (f & 0x0008)   /* bit 3:  1 = print zipfile name */
#define MSG_FN(f)      (f & 0x0010)   /* bit 4:  1 = print filename */
#define MSG_LNEWLN(f)  (f & 0x0020)   /* bit 5:  1 = leading newline if !SOL */
#define MSG_TNEWLN(f)  (f & 0x0040)   /* bit 6:  1 = trailing newline if !SOL */
#define MSG_MNEWLN(f)  (f & 0x0080)   /* bit 7:  1 = trailing NL for prompts */
/* the following are subject to change */
#define MSG_NO_WGUI(f) (f & 0x0100)   /* bit 8:  1 = skip if Windows GUI */
#define MSG_NO_AGUI(f) (f & 0x0200)   /* bit 9:  1 = skip if Acorn GUI */
#define MSG_NO_DLL2(f) (f & 0x0400)   /* bit 10:  1 = skip if OS/2 DLL */
#define MSG_NO_NDLL(f) (f & 0x0800)   /* bit 11:  1 = skip if WIN32 DLL */
#define MSG_NO_WDLL(f) (f & 0x1000)   /* bit 12:  1 = skip if Windows DLL */

#if (defined(MORE) && !defined(SCREENLINES))
#  ifdef DOS_FLX_NLM_OS2_W32
#    define SCREENLINES 25  /* can be (should be) a function instead */
#  else
#    define SCREENLINES 24  /* VT-100s are assumed to be minimal hardware */
#  endif
#endif
#if (defined(MORE) && !defined(SCREENSIZE))
#  ifndef SCREENWIDTH
#    define SCREENSIZE(scrrows, scrcols) { \
          if ((scrrows) != NULL) *(scrrows) = SCREENLINES; }
#  else
#    define SCREENSIZE(scrrows, scrcols) { \
          if ((scrrows) != NULL) *(scrrows) = SCREENLINES; \
          if ((scrcols) != NULL) *(scrcols) = SCREENWIDTH; }
#  endif
#endif

#if (defined(__16BIT__) || defined(MED_MEM) || defined(SMALL_MEM))
# define DIR_BLKSIZ  64     /* number of directory entries per block
                             *  (should fit in 4096 bytes, usually) */
#else
# define DIR_BLKSIZ 16384   /* use more memory, to reduce long-range seeks */
#endif

#ifndef WSIZE
#  ifdef USE_DEFLATE64
#    define WSIZE   65536L  /* window size--must be a power of two, and */
#  else                     /*  at least 64K for PKZip's deflate64 method */
#    define WSIZE   0x8000  /* window size--must be a power of two, and */
#  endif                    /*  at least 32K for zip's deflate method */
#endif

#ifdef __16BIT__
#  ifndef INT_16BIT
#    define INT_16BIT       /* on 16-bit systems int size is 16 bits */
#  endif
#else
#  define nearmalloc  malloc
#  define nearfree    free
#  if (!defined(__IBMC__) || !defined(OS2))
#    ifndef near
#      define near
#    endif
#    ifndef far
#      define far
#    endif
#  endif
#endif

#if (defined(DYNALLOC_CRCTAB) && !defined(DYNAMIC_CRC_TABLE))
#  undef DYNALLOC_CRCTAB
#endif

#if (defined(DYNALLOC_CRCTAB) && defined(REENTRANT))
#  undef DYNALLOC_CRCTAB   /* not safe with reentrant code */
#endif

#if (defined(USE_ZLIB) && !defined(USE_OWN_CRCTAB))
#  ifdef DYNALLOC_CRCTAB
#    undef DYNALLOC_CRCTAB
#  endif
#endif

#if (defined(USE_ZLIB) && defined(ASM_CRC))
#  undef ASM_CRC
#endif

#ifdef USE_ZLIB
#  ifdef IZ_CRC_BE_OPTIMIZ
#    undef IZ_CRC_BE_OPTIMIZ
#  endif
#  ifdef IZ_CRC_LE_OPTIMIZ
#    undef IZ_CRC_LE_OPTIMIZ
#  endif
#endif
#if (!defined(IZ_CRC_BE_OPTIMIZ) && !defined(IZ_CRC_LE_OPTIMIZ))
#  ifdef IZ_CRCOPTIM_UNFOLDTBL
#    undef IZ_CRCOPTIM_UNFOLDTBL
#  endif
#endif

#ifndef INBUFSIZ
#  if (defined(MED_MEM) || defined(SMALL_MEM))
#    define INBUFSIZ  2048  /* works for MS-DOS small model */
#  else
#    define INBUFSIZ  8192  /* larger buffers for real OSes */
#  endif
#endif

#if (defined(INT_16BIT) && (defined(USE_DEFLATE64) || lenEOL > 1))
   /* For environments using 16-bit integers OUTBUFSIZ must be limited to
    * less than 64k (do_string() uses "unsigned" in calculations involving
    * OUTBUFSIZ).  This is achieved by defining MED_MEM when WSIZE = 64k (aka
    * Deflate64 support enabled) or EOL markers contain multiple characters.
    * (The rule gets applied AFTER the default rule for INBUFSIZ because it
    * is not neccessary to reduce INBUFSIZE in this case.)
    */
#  if (!defined(SMALL_MEM) && !defined(MED_MEM))
#    define MED_MEM
#  endif
#endif

/* Logic for case of small memory, length of EOL > 1:  if OUTBUFSIZ == 2048,
 * OUTBUFSIZ>>1 == 1024 and OUTBUFSIZ>>7 == 16; therefore rawbuf is 1008 bytes
 * and transbuf 1040 bytes.  Have room for 32 extra EOL chars; 1008/32 == 31.5
 * chars/line, smaller than estimated 35-70 characters per line for C source
 * and normal text.  Hence difference is sufficient for most "average" files.
 * (Argument scales for larger OUTBUFSIZ.)
 */
#ifdef SMALL_MEM          /* i.e., 16-bit OSes:  MS-DOS, OS/2 1.x, etc. */
#  define LoadFarString(x)       fLoadFarString(__G__ (x))
#  define LoadFarStringSmall(x)  fLoadFarStringSmall(__G__ (x))
#  define LoadFarStringSmall2(x) fLoadFarStringSmall2(__G__ (x))
#  if (defined(_MSC_VER) && (_MSC_VER >= 600))
#    define zfstrcpy(dest, src)  _fstrcpy((dest), (src))
#    define zfstrcmp(s1, s2)     _fstrcmp((s1), (s2))
#  endif
#  if !(defined(SFX) || defined(FUNZIP))
#    if (defined(_MSC_VER))
#      define zfmalloc(sz)       _fmalloc((sz))
#      define zffree(x)          _ffree(x)
#    endif
#    if (defined(__TURBOC__))
#      include <alloc.h>
#      define zfmalloc(sz)       farmalloc((unsigned long)(sz))
#      define zffree(x)          farfree(x)
#    endif
#  endif /* !(SFX || FUNZIP) */
#  ifndef Far
#    define Far far  /* __far only works for MSC 6.00, not 6.0a or Borland */
#  endif
#  define OUTBUFSIZ INBUFSIZ
#  if (lenEOL == 1)
#    define RAWBUFSIZ (OUTBUFSIZ>>1)
#  else
#    define RAWBUFSIZ ((OUTBUFSIZ>>1) - (OUTBUFSIZ>>7))
#  endif
#  define TRANSBUFSIZ (OUTBUFSIZ-RAWBUFSIZ)
   typedef short  shrint;            /* short/int or "shrink int" (unshrink) */
#else
#  define zfstrcpy(dest, src)       strcpy((dest), (src))
#  define zfstrcmp(s1, s2)          strcmp((s1), (s2))
#  define zfmalloc                  malloc
#  define zffree(x)                 free(x)
#  ifdef QDOS
#    define LoadFarString(x)        Qstrfix(x)   /* fix up _ for '.' */
#    define LoadFarStringSmall(x)   Qstrfix(x)
#    define LoadFarStringSmall2(x)  Qstrfix(x)
#  else
#    define LoadFarString(x)        (char *)(x)
#    define LoadFarStringSmall(x)   (char *)(x)
#    define LoadFarStringSmall2(x)  (char *)(x)
#  endif
#  ifdef MED_MEM
#    define OUTBUFSIZ 0xFF80         /* can't malloc arrays of 0xFFE8 or more */
#    define TRANSBUFSIZ 0xFF80
     typedef short  shrint;
#  else
#    define OUTBUFSIZ (lenEOL*WSIZE) /* more efficient text conversion */
#    define TRANSBUFSIZ (lenEOL*OUTBUFSIZ)
#    ifdef AMIGA
       typedef short shrint;
#    else
       typedef int  shrint;          /* for efficiency/speed, we hope... */
#    endif
#  endif /* ?MED_MEM */
#  define RAWBUFSIZ OUTBUFSIZ
#endif /* ?SMALL_MEM */

#ifndef Far
#  define Far
#endif

#ifndef Cdecl
#  define Cdecl
#endif

#ifndef MAIN
#  define MAIN  main
#endif

#ifdef SFX      /* disable some unused features for SFX executables */
#  ifndef NO_ZIPINFO
#    define NO_ZIPINFO
#  endif
#  ifdef TIMESTAMP
#    undef TIMESTAMP
#  endif
#endif

#ifdef SFX
#  ifdef CHEAP_SFX_AUTORUN
#    ifndef NO_SFX_EXDIR
#      define NO_SFX_EXDIR
#    endif
#  endif
#  ifndef NO_SFX_EXDIR
#    ifndef SFX_EXDIR
#      define SFX_EXDIR
#    endif
#  else
#    ifdef SFX_EXDIR
#      undef SFX_EXDIR
#    endif
#  endif
#endif

/* user may have defined both by accident...  NOTIMESTAMP takes precedence */
#if (defined(TIMESTAMP) && defined(NOTIMESTAMP))
#  undef TIMESTAMP
#endif

#if (!defined(COPYRIGHT_CLEAN) && !defined(USE_SMITH_CODE))
#  define COPYRIGHT_CLEAN
#endif

/* The LZW patent is expired worldwide since 2004-Jul-07, so USE_UNSHRINK
 * is now enabled by default.  See unshrink.c.
 */
#if (!defined(LZW_CLEAN) && !defined(USE_UNSHRINK))
#  define USE_UNSHRINK
#endif

#ifndef O_BINARY
#  define O_BINARY  0
#endif

#ifndef PIPE_ERROR
#  ifndef EPIPE
#    define EPIPE -1
#  endif
#  define PIPE_ERROR (errno == EPIPE)
#endif

/* File operations--use "b" for binary if allowed or fixed length 512 on VMS */
#ifdef VMS
#  define FOPR  "r","ctx=stm"
#  define FOPM  "r+","ctx=stm","rfm=fix","mrs=512"
#  define FOPW  "w","ctx=stm","rfm=fix","mrs=512"
#  define FOPWR "w+","ctx=stm","rfm=fix","mrs=512"
#endif /* VMS */

#ifdef CMS_MVS
/* Binary files must be RECFM=F,LRECL=1 for ftell() to get correct pos */
/* ...unless byteseek is used.  Let's try that for a while.            */
#  define FOPR "rb,byteseek"
#  define FOPM "r+b,byteseek"
#  ifdef MVS
#    define FOPW "wb,recfm=u,lrecl=32760,byteseek" /* New binary files */
#    define FOPWE "wb"                             /* Existing binary files */
#    define FOPWT "w,lrecl=133"                    /* New text files */
#    define FOPWTE "w"                             /* Existing text files */
#  else
#    define FOPW "wb,recfm=v,lrecl=32760"
#    define FOPWT "w"
#  endif
#endif /* CMS_MVS */

#ifdef TOPS20          /* TOPS-20 MODERN?  You kidding? */
#  define FOPW "w8"
#endif /* TOPS20 */

/* Defaults when nothing special has been defined previously. */
#ifdef MODERN
#  ifndef FOPR
#    define FOPR "rb"
#  endif
#  ifndef FOPM
#    define FOPM "r+b"
#  endif
#  ifndef FOPW
#    define FOPW "wb"
#  endif
#  ifndef FOPWT
#    define FOPWT "wt"
#  endif
#  ifndef FOPWR
#    define FOPWR "w+b"
#  endif
#else /* !MODERN */
#  ifndef FOPR
#    define FOPR "r"
#  endif
#  ifndef FOPM
#    define FOPM "r+"
#  endif
#  ifndef FOPW
#    define FOPW "w"
#  endif
#  ifndef FOPWT
#    define FOPWT "w"
#  endif
#  ifndef FOPWR
#    define FOPWR "w+"
#  endif
#endif /* ?MODERN */

/*
 * If <limits.h> exists on most systems, should include that, since it may
 * define some or all of the following:  NAME_MAX, PATH_MAX, _POSIX_NAME_MAX,
 * _POSIX_PATH_MAX.
 */
#ifdef DOS_FLX_NLM_OS2_W32
#  include <limits.h>
#endif

/* 2008-07-22 SMS.
 * Unfortunately, on VMS, <limits.h> exists, and is included by <stdlib.h>
 * (so it's pretty much unavoidable), and it defines PATH_MAX to a fixed
 * short value (256, correct only for older systems without ODS-5 support),
 * rather than one based on the real RMS NAM[L] situation.  So, we
 * artificially undefine it here, to allow our better-defined _MAX_PATH
 * (see vms/vmscfg.h) to be used.
 */
#ifdef VMS
#  undef PATH_MAX
#endif

#ifndef PATH_MAX
#  ifdef MAXPATHLEN
#    define PATH_MAX      MAXPATHLEN    /* in <sys/param.h> on some systems */
#  else
#    ifdef _MAX_PATH
#      define PATH_MAX    _MAX_PATH
#    else
#      if FILENAME_MAX > 255
#        define PATH_MAX  FILENAME_MAX  /* used like PATH_MAX on some systems */
#      else
#        define PATH_MAX  1024
#      endif
#    endif /* ?_MAX_PATH */
#  endif /* ?MAXPATHLEN */
#endif /* !PATH_MAX */

/*
 * buffer size required to hold the longest legal local filepath
 * (including the trailing '\0')
 */
#define FILNAMSIZ  PATH_MAX

#ifdef UNICODE_SUPPORT
# if !(defined(UTF8_MAYBE_NATIVE) || defined(UNICODE_WCHAR))
#  undef UNICODE_SUPPORT
# endif
#endif
/* 2007-09-18 SMS.
 * Include <locale.h> here if it will be needed later for Unicode.
 * Otherwise, SETLOCALE may be defined here, and then defined again
 * (differently) when <locale.h> is read later.
 */
#ifdef UNICODE_SUPPORT
# ifdef UNICODE_WCHAR
#  if !(defined(_WIN32_WCE) || defined(POCKET_UNZIP))
#   include <wchar.h>
#  endif
# endif
# ifndef _MBCS  /* no need to include <locale.h> twice, see below */
#   include <locale.h>
#   ifndef SETLOCALE
#     define SETLOCALE(category, locale) setlocale(category, locale)
#   endif
# endif
#endif /* UNICODE_SUPPORT */

/* DBCS support for Info-ZIP  (mainly for japanese (-: )
 * by Yoshioka Tsuneo (QWF00133@nifty.ne.jp,tsuneo-y@is.aist-nara.ac.jp)
 */
#ifdef _MBCS
#  include <locale.h>
   /* Multi Byte Character Set */
#  define ___MBS_TMP_DEF  char *___tmp_ptr;
#  define ___TMP_PTR      ___tmp_ptr
#  ifndef CLEN
#    define NEED_UZMBCLEN
#    define CLEN(ptr) (int)uzmbclen((ZCONST unsigned char *)(ptr))
#  endif
#  ifndef PREINCSTR
#    define PREINCSTR(ptr) (ptr += CLEN(ptr))
#  endif
#  define POSTINCSTR(ptr) (___TMP_PTR=(char *)(ptr), PREINCSTR(ptr),___TMP_PTR)
   char *plastchar OF((ZCONST char *ptr, extent len));
#  define lastchar(ptr, len) ((int)(unsigned)*plastchar(ptr, len))
#  ifndef MBSCHR
#    define NEED_UZMBSCHR
#    define MBSCHR(str,c) (char *)uzmbschr((ZCONST unsigned char *)(str), c)
#  endif
#  ifndef MBSRCHR
#    define NEED_UZMBSRCHR
#    define MBSRCHR(str,c) (char *)uzmbsrchr((ZCONST unsigned char *)(str), c)
#  endif
#  ifndef SETLOCALE
#    define SETLOCALE(category, locale) setlocale(category, locale)
#  endif
#else /* !_MBCS */
#  define ___MBS_TMP_DEF
#  define ___TMP_PTR
#  define CLEN(ptr) 1
#  define PREINCSTR(ptr) (++(ptr))
#  define POSTINCSTR(ptr) ((ptr)++)
#  define plastchar(ptr, len) (&ptr[(len)-1])
#  define lastchar(ptr, len) (ptr[(len)-1])
#  define MBSCHR(str, c) strchr(str, c)
#  define MBSRCHR(str, c) strrchr(str, c)
#  ifndef SETLOCALE
#    define SETLOCALE(category, locale)
#  endif
#endif /* ?_MBCS */
#define INCSTR(ptr) PREINCSTR(ptr)


#if (defined(MALLOC_WORK) && !defined(MY_ZCALLOC))
   /* Any system without a special calloc function */
# ifndef zcalloc
#  define zcalloc(items, size) \
          (zvoid far *)calloc((unsigned)(items), (unsigned)(size))
# endif
# ifndef zcfree
#  define zcfree    free
# endif
#endif /* MALLOC_WORK && !MY_ZCALLOC */

#if (defined(CRAY) && defined(ZMEM))
#  undef ZMEM
#endif

#ifdef ZMEM
#  undef ZMEM
#  define memcmp(b1,b2,len)      bcmp(b2,b1,len)
#  define memcpy(dest,src,len)   bcopy(src,dest,len)
#  define memzero                bzero
#else
#  define memzero(dest,len)      memset(dest,0,len)
#endif

#ifndef TRUE
#  define TRUE      1   /* sort of obvious */
#endif
#ifndef FALSE
#  define FALSE     0
#endif

#ifndef SEEK_SET
#  define SEEK_SET  0
#  define SEEK_CUR  1
#  define SEEK_END  2
#endif

#if (!defined(S_IEXEC) && defined(S_IXUSR))
#  define S_IEXEC   S_IXUSR
#endif

#if (defined(UNIX) && defined(S_IFLNK) && !defined(MTS))
#  define SYMLINKS
#  ifndef S_ISLNK
#    define S_ISLNK(m)  (((m) & S_IFMT) == S_IFLNK)
#  endif
#endif /* UNIX && S_IFLNK && !MTS */

#ifndef S_ISDIR
#  ifdef CMS_MVS
#    define S_ISDIR(m)  (FALSE)
#  else
#    define S_ISDIR(m)  (((m) & S_IFMT) == S_IFDIR)
# endif
#endif

#ifndef IS_VOLID
#  define IS_VOLID(m)  ((m) & 0x08)
#endif

/***********************************/
/*  LARGE_FILE_SUPPORT             */
/***********************************/
/* This whole section lifted from Zip 3b tailor.h

 * Types are in OS dependent headers (eg, w32cfg.h)
 *
 * LARGE_FILE_SUPPORT and ZIP64_SUPPORT are automatically
 * set in OS dependent headers (for some ports) based on the port and compiler.
 *
 * Function prototypes are below as OF is defined earlier in this file
 * but after OS dependent header is included.
 *
 * E. Gordon 9/21/2003
 * Updated 1/28/2004
 * Lifted and placed here 6/7/2004 - Myles Bennett
 */
#ifdef LARGE_FILE_SUPPORT
  /* 64-bit Large File Support */

/* ---------------------------- */

# if defined(UNIX) || defined(VMS)

    /* 64-bit stat functions */
#   define zstat stat
#   define zfstat fstat

    /* 64-bit fseeko */
#   define zlseek lseek
#   define zfseeko fseeko

    /* 64-bit ftello */
#   define zftello ftello

    /* 64-bit fopen */
#   define zfopen fopen
#   define zfdopen fdopen

# endif /* UNIX || VMS */

/* ---------------------------- */

# ifdef WIN32

#   if defined(_MSC_VER) || defined(__MINGW32__) || defined(__LCC__)
    /* MS C (VC), MinGW GCC port and LCC-32 use the MS C Runtime lib */

      /* 64-bit stat functions */
#     define zstat _stati64
#     define zfstat _fstati64

      /* 64-bit lseek */
#     define zlseek _lseeki64

#     if defined(_MSC_VER) && (_MSC_VER >= 1400)
        /* Beginning with VS 8.0 (Visual Studio 2005, MSC 14), the Microsoft
           C rtl publishes its (previously internal) implmentations of
           "fseeko" and "ftello" for 64-bit file offsets. */
        /* 64-bit fseeko */
#       define zfseeko _fseeki64
        /* 64-bit ftello */
#       define zftello _ftelli64

#     else /* not (defined(_MSC_VER) && (_MSC_VER >= 1400)) */

#     if defined(__MSVCRT_VERSION__) && (__MSVCRT_VERSION__ >= 0x800)
        /* Up-to-date versions of MinGW define the macro __MSVCRT_VERSION__
           to denote the version of the MS C rtl dll used for linking.  When
           configured to link against the runtime of MS Visual Studio 8 (or
           newer), the built-in 64-bit fseek/ftell functions are available. */
        /* 64-bit fseeko */
#       define zfseeko _fseeki64
        /* 64-bit ftello */
#       define zftello _ftelli64

#     else /* !(defined(__MSVCRT_VERSION__) && (__MSVCRT_VERSION__>=0x800)) */
        /* The version of the C runtime is lower than MSC 14 or unknown. */

        /* The newest MinGW port contains built-in extensions to the MSC rtl
           that provide fseeko and ftello, but our implementations will do
           for now. */
       /* 64-bit fseeko */
       int zfseeko OF((FILE *, zoff_t, int));

       /* 64-bit ftello */
       zoff_t zftello OF((FILE *));

#     endif /* ? (__MSVCRT_VERSION__ >= 0x800) */
#     endif /* ? (_MSC_VER >= 1400) */

      /* 64-bit fopen */
#     define zfopen fopen
#     define zfdopen fdopen

#   endif /* _MSC_VER || __MINGW__ || __LCC__ */

#   ifdef __CYGWIN__
    /* CYGWIN GCC Posix emulator on Windows
       (configuration not yet finished/tested)  */

      /* 64-bit stat functions */
#     define zstat _stati64
#     define zfstat _fstati64

      /* 64-bit lseek */
#     define zlseek _lseeki64

      /* 64-bit fseeko */
#     define zfseeko fseeko

      /* 64-bit ftello */
#     define zftello ftello

      /* 64-bit fopen */
#     define zfopen fopen
#     define zfdopen fdopen

#   endif
#   if defined(__WATCOMC__) || defined(__BORLANDC__)
    /* WATCOM C and Borland C provide their own C runtime libraries,
       but they are sufficiently compatible with MS CRTL. */

      /* 64-bit stat functions */
#     define zstat _stati64
#     define zfstat _fstati64

#   ifdef __WATCOMC__
      /* 64-bit lseek */
#     define zlseek _lseeki64
#   endif

      /* 64-bit fseeko */
      int zfseeko OF((FILE *, zoff_t, int));

      /* 64-bit ftello */
      zoff_t zftello OF((FILE *));

      /* 64-bit fopen */
#     define zfopen fopen
#     define zfdopen fdopen

#   endif
#   ifdef __IBMC__
      /* IBM C */

      /* 64-bit stat functions */

      /* 64-bit fseeko */

      /* 64-bit ftello */

      /* 64-bit fopen */

#   endif

# endif /* WIN32 */

#else
  /* No Large File Support */

# ifndef REGULUS  /* returns the inode number on success(!)...argh argh argh */
#   define zstat stat
# endif
# define zfstat fstat
# define zlseek lseek
# define zfseeko fseek
# define zftello ftell
# define zfopen fopen
# define zfdopen fdopen

# if defined(UNIX) || defined(VMS) || defined(WIN32)
    /* For these systems, implement "64bit file vs. 32bit prog" check  */
#   ifndef DO_SAFECHECK_2GB
#     define DO_SAFECHECK_2GB
#   endif
# endif

#endif

/* No "64bit file vs. 32bit prog" check for SFX stub, to save space */
#if (defined(DO_SAFECHECK_2GB) && defined(SFX))
#  undef DO_SAFECHECK_2GB
#endif

#ifndef SSTAT
#  ifdef WILD_STAT_BUG
#    define SSTAT(path,pbuf) (iswild(path) || zstat(path,pbuf))
#  else
#    define SSTAT    zstat
#  endif
#endif


/* Default fzofft() format selection. */

#ifndef FZOFFT_FMT

#  ifdef LARGE_FILE_SUPPORT
#    define FZOFFT_FMT "ll"
#    define FZOFFT_HEX_WID_VALUE "16"
#  else /* def LARGE_FILE_SUPPORT */
#    define FZOFFT_FMT "l"
#    define FZOFFT_HEX_WID_VALUE "8"
#  endif /* def LARGE_FILE_SUPPORT */

#endif /* ndef FZOFFT_FMT */

#define FZOFFT_HEX_WID ((char *) -1)
#define FZOFFT_HEX_DOT_WID ((char *) -2)

#define FZOFFT_NUM 4            /* Number of chambers. */
#define FZOFFT_LEN 24           /* Number of characters/chamber. */


#ifdef SHORT_SYMS                   /* Mark Williams C, ...? */
#  define extract_or_test_files     xtr_or_tst_files
#  define extract_or_test_member    xtr_or_tst_member
#endif

#ifdef REALLY_SHORT_SYMS            /* TOPS-20 linker:  first 6 chars */
#  define process_cdir_file_hdr     XXpcdfh
#  define process_local_file_hdr    XXplfh
#  define extract_or_test_files     XXxotf  /* necessary? */
#  define extract_or_test_member    XXxotm  /* necessary? */
#  define check_for_newer           XXcfn
#  define overwrite_all             XXoa
#  define process_all_files         XXpaf
#  define extra_field               XXef
#  define explode_lit8              XXel8
#  define explode_lit4              XXel4
#  define explode_nolit8            XXnl8
#  define explode_nolit4            XXnl4
#  define cpdist8                   XXcpdist8
#  define inflate_codes             XXic
#  define inflate_stored            XXis
#  define inflate_fixed             XXif
#  define inflate_dynamic           XXid
#  define inflate_block             XXib
#  define maxcodemax                XXmax
#endif

#ifndef S_TIME_T_MAX            /* max value of signed (>= 32-bit) time_t */
#  define S_TIME_T_MAX  ((time_t)(ulg)0x7fffffffL)
#endif
#ifndef U_TIME_T_MAX            /* max value of unsigned (>= 32-bit) time_t */
#  define U_TIME_T_MAX  ((time_t)(ulg)0xffffffffL)
#endif
#ifdef DOSTIME_MINIMUM          /* min DOSTIME value (1980-01-01) */
#  undef DOSTIME_MINIMUM
#endif
#define DOSTIME_MINIMUM ((ulg)0x00210000L)
#ifdef DOSTIME_2038_01_18       /* approximate DOSTIME equivalent of */
#  undef DOSTIME_2038_01_18     /*  the signed-32-bit time_t limit */
#endif
#define DOSTIME_2038_01_18 ((ulg)0x74320000L)

#ifdef QDOS
#  define ZSUFX         "_zip"
#  define ALT_ZSUFX     ".zip"
#else
#  ifdef RISCOS
#    define ZSUFX       "/zip"
#  else
#    define ZSUFX       ".zip"
#  endif
#  define ALT_ZSUFX     ".ZIP"   /* Unix-only so far (only case-sensitive fs) */
#endif

#define CENTRAL_HDR_SIG   "\001\002"   /* the infamous "PK" signature bytes, */
#define LOCAL_HDR_SIG     "\003\004"   /*  w/o "PK" (so unzip executable not */
#define END_CENTRAL_SIG   "\005\006"   /*  mistaken for zipfile itself) */
#define EXTD_LOCAL_SIG    "\007\010"   /* [ASCII "\113" == EBCDIC "\080" ??] */

/** internal-only return codes **/
#define IZ_DIR            76   /* potential zipfile is a directory */
/* special return codes for mapname() */
#define MPN_OK            0      /* mapname successful */
#define MPN_INF_TRUNC    (1<<8)  /* caution - filename truncated */
#define MPN_INF_SKIP     (2<<8)  /* info  - skipped because nothing to do */
#define MPN_ERR_SKIP     (3<<8)  /* error - entry skipped */
#define MPN_ERR_TOOLONG  (4<<8)  /* error - path too long */
#define MPN_NOMEM        (10<<8) /* error - out of memory, file skipped */
#define MPN_CREATED_DIR  (16<<8) /* directory created: set time & permission */
#define MPN_VOL_LABEL    (17<<8) /* volume label, but can't set on hard disk */
#define MPN_INVALID      (99<<8) /* internal logic error, should never reach */
/* mask for internal mapname&checkdir return codes */
#define MPN_MASK          0x7F00
/* error code for extracting/testing extra field blocks */
#define IZ_EF_TRUNC       79   /* local extra field truncated (PKZIP'd) */

/* choice of activities for do_string() */
#define SKIP              0             /* skip header block */
#define DISPLAY           1             /* display archive comment (ASCII) */
#define DISPL_8           5             /* display file comment (ext. ASCII) */
#define DS_FN             2             /* read filename (ext. ASCII, chead) */
#define DS_FN_C           2             /* read filename from central header */
#define DS_FN_L           6             /* read filename from local header */
#define EXTRA_FIELD       3             /* copy extra field into buffer */
#define DS_EF             3
#ifdef AMIGA
#  define FILENOTE        4             /* convert file comment to filenote */
#endif
#if (defined(SFX) && defined(CHEAP_SFX_AUTORUN))
#  define CHECK_AUTORUN   7             /* copy command, display remainder */
#  define CHECK_AUTORUN_Q 8             /* copy command, skip remainder */
#endif

#define DOES_NOT_EXIST    -1   /* return values for check_for_newer() */
#define EXISTS_AND_OLDER  0
#define EXISTS_AND_NEWER  1

#define OVERWRT_QUERY     0    /* status values for G.overwrite_mode */
#define OVERWRT_ALWAYS    1
#define OVERWRT_NEVER     2

#define IS_OVERWRT_ALL    (G.overwrite_mode == OVERWRT_ALWAYS)
#define IS_OVERWRT_NONE   (G.overwrite_mode == OVERWRT_NEVER)

#ifdef VMS
  /* return codes for VMS-specific open_outfile() function */
# define OPENOUT_OK       0   /* file openend normally */
# define OPENOUT_FAILED   1   /* file open failed */
# define OPENOUT_SKIPOK   2   /* file not opened, skip at error level OK */
# define OPENOUT_SKIPWARN 3   /* file not opened, skip at error level WARN */
#endif /* VMS */

#define ROOT              0    /* checkdir() extract-to path:  called once */
#define INIT              1    /* allocate buildpath:  called once per member */
#define APPEND_DIR        2    /* append a dir comp.:  many times per member */
#define APPEND_NAME       3    /* append actual filename:  once per member */
#define GETPATH           4    /* retrieve the complete path and free it */
#define END               5    /* free root path prior to exiting program */

/* version_made_by codes (central dir):  make sure these */
/*  are not defined on their respective systems!! */
#define FS_FAT_           0    /* filesystem used by MS-DOS, OS/2, Win32 */
#define AMIGA_            1
#define VMS_              2
#define UNIX_             3
#define VM_CMS_           4
#define ATARI_            5    /* what if it's a minix filesystem? [cjh] */
#define FS_HPFS_          6    /* filesystem used by OS/2 (and NT 3.x) */
#define MAC_              7    /* HFS filesystem used by MacOS */
#define Z_SYSTEM_         8
#define CPM_              9
#define TOPS20_           10
#define FS_NTFS_          11   /* filesystem used by Windows NT */
#define QDOS_             12
#define ACORN_            13   /* Archimedes Acorn RISC OS */
#define FS_VFAT_          14   /* filesystem used by Windows 95, NT */
#define MVS_              15
#define BEOS_             16   /* hybrid POSIX/database filesystem */
#define TANDEM_           17   /* Tandem NSK */
#define THEOS_            18   /* THEOS */
#define MAC_OSX_          19   /* Mac OS/X (Darwin) */
#define ATHEOS_           30   /* AtheOS */
#define NUM_HOSTS         31   /* index of last system + 1 */
/* don't forget to update zipinfo.c appropiately if NUM_HOSTS changes! */

#define STORED            0    /* compression methods */
#define SHRUNK            1
#define REDUCED1          2
#define REDUCED2          3
#define REDUCED3          4
#define REDUCED4          5
#define IMPLODED          6
#define TOKENIZED         7
#define DEFLATED          8
#define ENHDEFLATED       9
#define DCLIMPLODED      10
#define BZIPPED          12
#define LZMAED           14
#define IBMTERSED        18
#define IBMLZ77ED        19
#define WAVPACKED        97
#define PPMDED           98
#define NUM_METHODS      17     /* number of known method IDs */
/* don't forget to update list.c (list_files()), extract.c and zipinfo.c
 * appropriately if NUM_METHODS changes */

/* (the PK-class error codes are public and have been moved into unzip.h) */

#define DF_MDY            0    /* date format 10/26/91 (USA only) */
#define DF_DMY            1    /* date format 26/10/91 (most of the world) */
#define DF_YMD            2    /* date format 91/10/26 (a few countries) */

/*---------------------------------------------------------------------------
    Extra-field block ID values and offset info.
  ---------------------------------------------------------------------------*/
/* extra-field ID values, all little-endian: */
#define EF_PKSZ64    0x0001    /* PKWARE's 64-bit filesize extensions */
#define EF_AV        0x0007    /* PKWARE's authenticity verification */
#define EF_EFS       0x0008    /* PKWARE's extended language encoding */
#define EF_OS2       0x0009    /* OS/2 extended attributes */
#define EF_PKW32     0x000a    /* PKWARE's Win95/98/WinNT filetimes */
#define EF_PKVMS     0x000c    /* PKWARE's VMS */
#define EF_PKUNIX    0x000d    /* PKWARE's Unix */
#define EF_PKFORK    0x000e    /* PKWARE's future stream/fork descriptors */
#define EF_PKPATCH   0x000f    /* PKWARE's patch descriptor */
#define EF_PKPKCS7   0x0014    /* PKWARE's PKCS#7 store for X.509 Certs */
#define EF_PKFX509   0x0015    /* PKWARE's file X.509 Cert&Signature ID */
#define EF_PKCX509   0x0016    /* PKWARE's central dir X.509 Cert ID */
#define EF_PKENCRHD  0x0017    /* PKWARE's Strong Encryption header */
#define EF_PKRMCTL   0x0018    /* PKWARE's Record Management Controls*/
#define EF_PKLSTCS7  0x0019    /* PKWARE's PKCS#7 Encr. Recipient Cert List */
#define EF_PKIBM     0x0065    /* PKWARE's IBM S/390 & AS/400 attributes */
#define EF_PKIBM2    0x0066    /* PKWARE's IBM S/390 & AS/400 compr. attribs */
#define EF_IZVMS     0x4d49    /* Info-ZIP's VMS ("IM") */
#define EF_IZUNIX    0x5855    /* Info-ZIP's first Unix[1] ("UX") */
#define EF_IZUNIX2   0x7855    /* Info-ZIP's second Unix[2] ("Ux") */
#define EF_IZUNIX3   0x7875    /* Info-ZIP's newest Unix[3] ("ux") */
#define EF_TIME      0x5455    /* universal timestamp ("UT") */
#define EF_UNIPATH   0x7075    /* Info-ZIP Unicode Path ("up") */
#define EF_UNICOMNT  0x6375    /* Info-ZIP Unicode Comment ("uc") */
#define EF_MAC3      0x334d    /* Info-ZIP's new Macintosh (= "M3") */
#define EF_JLMAC     0x07c8    /* Johnny Lee's old Macintosh (= 1992) */
#define EF_ZIPIT     0x2605    /* Thomas Brown's Macintosh (ZipIt) */
#define EF_ZIPIT2    0x2705    /* T. Brown's Mac (ZipIt) v 1.3.8 and newer ? */
#define EF_SMARTZIP  0x4d63    /* Mac SmartZip by Marco Bambini */
#define EF_VMCMS     0x4704    /* Info-ZIP's VM/CMS ("\004G") */
#define EF_MVS       0x470f    /* Info-ZIP's MVS ("\017G") */
#define EF_ACL       0x4c41    /* (OS/2) access control list ("AL") */
#define EF_NTSD      0x4453    /* NT security descriptor ("SD") */
#define EF_ATHEOS    0x7441    /* AtheOS ("At") */
#define EF_BEOS      0x6542    /* BeOS ("Be") */
#define EF_QDOS      0xfb4a    /* SMS/QDOS ("J\373") */
#define EF_AOSVS     0x5356    /* AOS/VS ("VS") */
#define EF_SPARK     0x4341    /* David Pilling's Acorn/SparkFS ("AC") */
#define EF_TANDEM    0x4154    /* Tandem NSK ("TA") */
#define EF_THEOS     0x6854    /* Jean-Michel Dubois' Theos "Th" */
#define EF_THEOSO    0x4854    /* old Theos port */
#define EF_MD5       0x4b46    /* Fred Kantor's MD5 ("FK") */
#define EF_ASIUNIX   0x756e    /* ASi's Unix ("nu") */

#define EB_HEADSIZE       4    /* length of extra field block header */
#define EB_ID             0    /* offset of block ID in header */
#define EB_LEN            2    /* offset of data length field in header */
#define EB_UCSIZE_P       0    /* offset of ucsize field in compr. data */
#define EB_CMPRHEADLEN    6    /* lenght of compression header */

#define EB_UX_MINLEN      8    /* minimal "UX" field contains atime, mtime */
#define EB_UX_FULLSIZE    12   /* full "UX" field (atime, mtime, uid, gid) */
#define EB_UX_ATIME       0    /* offset of atime in "UX" extra field data */
#define EB_UX_MTIME       4    /* offset of mtime in "UX" extra field data */
#define EB_UX_UID         8    /* byte offset of UID in "UX" field data */
#define EB_UX_GID         10   /* byte offset of GID in "UX" field data */

#define EB_UX2_MINLEN     4    /* minimal "Ux" field contains UID/GID */
#define EB_UX2_UID        0    /* byte offset of UID in "Ux" field data */
#define EB_UX2_GID        2    /* byte offset of GID in "Ux" field data */
#define EB_UX2_VALID      (1 << 8)      /* UID/GID present */

#define EB_UX3_MINLEN     7    /* minimal "ux" field size (2-byte UID/GID) */

#define EB_UT_MINLEN      1    /* minimal UT field contains Flags byte */
#define EB_UT_FLAGS       0    /* byte offset of Flags field */
#define EB_UT_TIME1       1    /* byte offset of 1st time value */
#define EB_UT_FL_MTIME    (1 << 0)      /* mtime present */
#define EB_UT_FL_ATIME    (1 << 1)      /* atime present */
#define EB_UT_FL_CTIME    (1 << 2)      /* ctime present */

#define EB_FLGS_OFFS      4    /* offset of flags area in generic compressed
                                  extra field blocks (BEOS, MAC, and others) */
#define EB_OS2_HLEN       4    /* size of OS2/ACL compressed data header */
#define EB_BEOS_HLEN      5    /* length of BeOS&AtheOS e.f attribute header */
#define EB_BE_FL_UNCMPR   0x01 /* "BeOS&AtheOS attribs uncompr." bit flag */
#define EB_MAC3_HLEN      14   /* length of Mac3 attribute block header */
#define EB_SMARTZIP_HLEN  64   /* fixed length of the SmartZip extra field */
#define EB_M3_FL_DATFRK   0x01 /* "this entry is data fork" flag */
#define EB_M3_FL_UNCMPR   0x04 /* "Mac3 attributes uncompressed" bit flag */
#define EB_M3_FL_TIME64   0x08 /* "Mac3 time fields are 64 bit wide" flag */
#define EB_M3_FL_NOUTC    0x10 /* "Mac3 timezone offset fields missing" flag */

#define EB_NTSD_C_LEN     4    /* length of central NT security data */
#define EB_NTSD_L_LEN     5    /* length of minimal local NT security data */
#define EB_NTSD_VERSION   4    /* offset of NTSD version byte */
#define EB_NTSD_MAX_VER   (0)  /* maximum version # we know how to handle */

#define EB_ASI_CRC32      0    /* offset of ASI Unix field's crc32 checksum */
#define EB_ASI_MODE       4    /* offset of ASI Unix permission mode field */

#define EB_IZVMS_HLEN     12   /* length of IZVMS attribute block header */
#define EB_IZVMS_FLGS     4    /* offset of compression type flag */
#define EB_IZVMS_UCSIZ    6    /* offset of ucsize field in IZVMS header */
#define EB_IZVMS_BCMASK   07   /* 3 bits for compression type */
#define EB_IZVMS_BCSTOR   0    /*  Stored */
#define EB_IZVMS_BC00     1    /*  0byte -> 0bit compression */
#define EB_IZVMS_BCDEFL   2    /*  Deflated */


/*---------------------------------------------------------------------------
    True sizes of the various headers (excluding their 4-byte signatures),
    as defined by PKWARE--so it is not likely that these will ever change.
    But if they do, make sure both these defines AND the typedefs below get
    updated accordingly.

    12/27/2006
    The Zip64 End Of Central Directory record is variable size and now
    comes in two flavors, version 1 and the new version 2 that supports
    central directory encryption.  We only use the old fields at the
    top of the Zip64 EOCDR, and this block is a fixed size still, but
    need to be aware of the stuff following.
  ---------------------------------------------------------------------------*/
#define LREC_SIZE    26   /* lengths of local file headers, central */
#define CREC_SIZE    42   /*  directory headers, end-of-central-dir */
#define ECREC_SIZE   18   /*  record, zip64 end-of-cent-dir locator */
#define ECLOC64_SIZE 16   /*  and zip64 end-of-central-dir record,  */
#define ECREC64_SIZE 52   /*  respectively                          */

#define MAX_BITS    13                 /* used in unshrink() */
#define HSIZE       (1 << MAX_BITS)    /* size of global work area */

#define LF     10        /* '\n' on ASCII machines; must be 10 due to EBCDIC */
#define CR     13        /* '\r' on ASCII machines; must be 13 due to EBCDIC */
#define CTRLZ  26        /* DOS & OS/2 EOF marker (used in fileio.c, vms.c) */

#ifdef EBCDIC
#  define foreign(c)    ascii[(uch)(c)]
#  define native(c)     ebcdic[(uch)(c)]
#  define NATIVE        "EBCDIC"
#  define NOANSIFILT
#endif

#ifdef VMS
#  define ENV_UNZIP       "UNZIP_OPTS"     /* names of environment variables */
#  define ENV_ZIPINFO     "ZIPINFO_OPTS"
#endif /* VMS */
#ifdef RISCOS
#  define ENV_UNZIP       "Unzip$Options"
#  define ENV_ZIPINFO     "Zipinfo$Options"
#  define ENV_UNZIPEXTS   "Unzip$Exts"
#endif /* RISCOS */
#ifndef ENV_UNZIP
#  define ENV_UNZIP       "UNZIP"          /* the standard names */
#  define ENV_ZIPINFO     "ZIPINFO"
#endif
#define ENV_UNZIP2        "UNZIPOPT"     /* alternate names, for zip compat. */
#define ENV_ZIPINFO2      "ZIPINFOOPT"

#if (!defined(QQ) && !defined(NOQQ))
#  define QQ
#endif

#ifdef QQ                         /* Newtware version:  no file */
#  define QCOND     (!uO.qflag)   /*  comments with -vq or -vqq */
#else                             /* Bill Davidsen version:  no way to */
#  define QCOND     (longhdr)     /*  kill file comments when listing */
#endif

#ifdef OLD_QQ
#  define QCOND2    (uO.qflag < 2)
#else
#  define QCOND2    (!uO.qflag)
#endif

#ifdef WILD_STOP_AT_DIR
#  define __WDLPRO  , int sepc
#  define __WDL     , sepc
#  define __WDLDEF  int sepc;
#  define WISEP     , (uO.W_flag ? '/' : '\0')
#else
#  define __WDLPRO
#  define __WDL
#  define __WDLDEF
#  define WISEP
#endif




/**************/
/*  Typedefs  */
/**************/

#ifdef ZIP64_SUPPORT
# ifndef Z_UINT8_DEFINED
#   if (defined(__GNUC__) || defined(__hpux) || defined(__SUNPRO_C))
  typedef unsigned long long    z_uint8;
#   else
  typedef unsigned __int64      z_uint8;
#   endif
#   define Z_UINT8_DEFINED
# endif
#endif
#ifndef Z_UINT4_DEFINED
# if (defined(MODERN) && !defined(NO_LIMITS_H))
#  if (defined(UINT_MAX) && (UINT_MAX == 0xffffffffUL))
     typedef unsigned int       z_uint4;
#    define Z_UINT4_DEFINED
#  else
#  if (defined(ULONG_MAX) && (ULONG_MAX == 0xffffffffUL))
     typedef unsigned long      z_uint4;
#    define Z_UINT4_DEFINED
#  else
#  if (defined(USHRT_MAX) && (USHRT_MAX == 0xffffffffUL))
     typedef unsigned short     z_uint4;
#    define Z_UINT4_DEFINED
#  endif
#  endif
#  endif
# endif /* MODERN && !NO_LIMITS_H */
#endif /* !Z_UINT4_DEFINED */
#ifndef Z_UINT4_DEFINED
  typedef ulg                   z_uint4;
# define Z_UINT4_DEFINED
#endif

/* The following three user-defined unsigned integer types are used for
   holding zipfile entities (required widths without / with Zip64 support):
   a) sizes and offset of zipfile entries
      (4 bytes / 8 bytes)
   b) enumeration and counts of zipfile entries
      (2 bytes / 8 bytes)
      Remark: internally, we use 4 bytes for archive member counting in the
              No-Zip64 case, because UnZip supports more than 64k entries for
              classic Zip archives without Zip64 extensions.
   c) enumeration and counts of zipfile volumes of multivolume archives
      (2 bytes / 4 bytes)
 */
#ifdef ZIP64_SUPPORT
  typedef  z_uint8              zusz_t;     /* zipentry sizes & offsets */
  typedef  z_uint8              zucn_t;     /* archive entry counts */
  typedef  z_uint4              zuvl_t;     /* multivolume numbers */
# define MASK_ZUCN64            (~(zucn_t)0)
/* In case we ever get to support an environment where z_uint8 may be WIDER
   than 64 bit wide, we will have to apply a construct similar to
     #define MASK_ZUCN64        (~(zucn_t)0 & (zucn_t)0xffffffffffffffffULL)
   for the 64-bit mask.
 */
#else
  typedef  ulg                  zusz_t;     /* zipentry sizes & offsets */
  typedef  unsigned int         zucn_t;     /* archive entry counts */
  typedef  unsigned short       zuvl_t;     /* multivolume numbers */
# define MASK_ZUCN64            (~(zucn_t)0)
#endif
#define MASK_ZUCN16             ((zucn_t)0xFFFF)

#ifdef NO_UID_GID
#  ifdef UID_USHORT
     typedef unsigned short  uid_t;    /* TI SysV.3 */
     typedef unsigned short  gid_t;
#  else
     typedef unsigned int    uid_t;    /* SCO Xenix */
     typedef unsigned int    gid_t;
#  endif
#endif

#if (defined(GOT_UTIMBUF) || defined(sgi) || defined(ATARI))
   typedef struct utimbuf ztimbuf;
#else
   typedef struct ztimbuf {
       time_t actime;        /* new access time */
       time_t modtime;       /* new modification time */
   } ztimbuf;
#endif

typedef struct iztimes {
   time_t atime;             /* new access time */
   time_t mtime;             /* new modification time */
   time_t ctime;             /* used for creation time; NOT same as st_ctime */
} iztimes;

#ifdef SET_DIR_ATTRIB
   typedef struct direntry {    /* head of system-specific struct holding */
       struct direntry *next;   /*  defered directory attributes info */
       char *fn;                /* filename of directory */
       char buf[1];             /* start of system-specific internal data */
   } direntry;
#endif /* SET_DIR_ATTRIB */

#ifdef SYMLINKS
   typedef struct slinkentry {  /* info for deferred symlink creation */
       struct slinkentry *next; /* pointer to next entry in chain */
       extent targetlen;        /* length of target filespec */
       extent attriblen;        /* length of system-specific attrib data */
       char *target;            /* pointer to target filespec */
       char *fname;             /* pointer to name of link */
       char buf[1];             /* data/name/link buffer */
   } slinkentry;
#endif /* SYMLINKS */

typedef struct min_info {
    zoff_t offset;
    zusz_t compr_size;       /* compressed size (needed if extended header) */
    zusz_t uncompr_size;     /* uncompressed size (needed if extended header) */
    ulg crc;                 /* crc (needed if extended header) */
    zuvl_t diskstart;        /* no of volume where this entry starts */
    uch hostver;
    uch hostnum;
    unsigned file_attr;      /* local flavor, as used by creat(), chmod()... */
    unsigned encrypted : 1;  /* file encrypted: decrypt before uncompressing */
    unsigned ExtLocHdr : 1;  /* use time instead of CRC for decrypt check */
    unsigned textfile : 1;   /* file is text (according to zip) */
    unsigned textmode : 1;   /* file is to be extracted as text */
    unsigned lcflag : 1;     /* convert filename to lowercase */
    unsigned vollabel : 1;   /* "file" is an MS-DOS volume (disk) label */
#ifdef SYMLINKS
    unsigned symlink : 1;    /* file is a symbolic link */
#endif
    unsigned HasUxAtt : 1;   /* crec ext_file_attr has Unix style mode bits */
#ifdef UNICODE_SUPPORT
    unsigned GPFIsUTF8: 1;   /* crec gen_purpose_flag UTF-8 bit 11 is set */
#endif
#ifndef SFX
    char Far *cfilname;      /* central header version of filename */
#endif
} min_info;

typedef struct VMStimbuf {
    char *revdate;    /* (both roughly correspond to Unix modtime/st_mtime) */
    char *credate;
} VMStimbuf;

/*---------------------------------------------------------------------------
    Zipfile work area declarations.
  ---------------------------------------------------------------------------*/

#ifdef MALLOC_WORK
   union work {
     struct {                 /* unshrink(): */
       shrint *Parent;          /* pointer to (8192 * sizeof(shrint)) */
       uch *value;              /* pointer to 8KB char buffer */
       uch *Stack;              /* pointer to another 8KB char buffer */
     } shrink;
     uch *Slide;              /* explode(), inflate(), unreduce() */
   };
#else /* !MALLOC_WORK */
   union work {
     struct {                 /* unshrink(): */
       shrint Parent[HSIZE];    /* (8192 * sizeof(shrint)) == 16KB minimum */
       uch value[HSIZE];        /* 8KB */
       uch Stack[HSIZE];        /* 8KB */
     } shrink;                  /* total = 32KB minimum; 80KB on Cray/Alpha */
     uch Slide[WSIZE];        /* explode(), inflate(), unreduce() */
   };
#endif /* ?MALLOC_WORK */

#define slide  G.area.Slide

#if (defined(DLL) && !defined(NO_SLIDE_REDIR))
#  define redirSlide G.redirect_sldptr
#else
#  define redirSlide G.area.Slide
#endif

/*---------------------------------------------------------------------------
    Zipfile layout declarations.  If these headers ever change, make sure the
    xxREC_SIZE defines (above) change with them!
  ---------------------------------------------------------------------------*/

   typedef uch   local_byte_hdr[ LREC_SIZE ];
#      define L_VERSION_NEEDED_TO_EXTRACT_0     0
#      define L_VERSION_NEEDED_TO_EXTRACT_1     1
#      define L_GENERAL_PURPOSE_BIT_FLAG        2
#      define L_COMPRESSION_METHOD              4
#      define L_LAST_MOD_DOS_DATETIME           6
#      define L_CRC32                           10
#      define L_COMPRESSED_SIZE                 14
#      define L_UNCOMPRESSED_SIZE               18
#      define L_FILENAME_LENGTH                 22
#      define L_EXTRA_FIELD_LENGTH              24

   typedef uch   cdir_byte_hdr[ CREC_SIZE ];
#      define C_VERSION_MADE_BY_0               0
#      define C_VERSION_MADE_BY_1               1
#      define C_VERSION_NEEDED_TO_EXTRACT_0     2
#      define C_VERSION_NEEDED_TO_EXTRACT_1     3
#      define C_GENERAL_PURPOSE_BIT_FLAG        4
#      define C_COMPRESSION_METHOD              6
#      define C_LAST_MOD_DOS_DATETIME           8
#      define C_CRC32                           12
#      define C_COMPRESSED_SIZE                 16
#      define C_UNCOMPRESSED_SIZE               20
#      define C_FILENAME_LENGTH                 24
#      define C_EXTRA_FIELD_LENGTH              26
#      define C_FILE_COMMENT_LENGTH             28
#      define C_DISK_NUMBER_START               30
#      define C_INTERNAL_FILE_ATTRIBUTES        32
#      define C_EXTERNAL_FILE_ATTRIBUTES        34
#      define C_RELATIVE_OFFSET_LOCAL_HEADER    38

   typedef uch   ec_byte_rec[ ECREC_SIZE+4 ];
/*     define SIGNATURE                         0   space-holder only */
#      define NUMBER_THIS_DISK                  4
#      define NUM_DISK_WITH_START_CEN_DIR       6
#      define NUM_ENTRIES_CEN_DIR_THS_DISK      8
#      define TOTAL_ENTRIES_CENTRAL_DIR         10
#      define SIZE_CENTRAL_DIRECTORY            12
#      define OFFSET_START_CENTRAL_DIRECTORY    16
#      define ZIPFILE_COMMENT_LENGTH            20

   typedef uch   ec_byte_loc64[ ECLOC64_SIZE+4 ];
#      define NUM_DISK_START_EOCDR64            4
#      define OFFSET_START_EOCDR64              8
#      define NUM_THIS_DISK_LOC64               16

   typedef uch   ec_byte_rec64[ ECREC64_SIZE+4 ];
#      define ECREC64_LENGTH                    4
#      define EC_VERSION_MADE_BY_0              12
#      define EC_VERSION_NEEDED_0               14
#      define NUMBER_THIS_DSK_REC64             16
#      define NUM_DISK_START_CEN_DIR64          20
#      define NUM_ENTRIES_CEN_DIR_THS_DISK64    24
#      define TOTAL_ENTRIES_CENTRAL_DIR64       32
#      define SIZE_CENTRAL_DIRECTORY64          40
#      define OFFSET_START_CENTRAL_DIRECT64     48


/* The following structs are used to hold all header data of a zip entry.
   Traditionally, the structs' layouts followed the data layout of the
   corresponding zipfile header structures.  However, the zipfile header
   layouts were designed in the old ages of 16-bit CPUs, they are subject
   to structure padding and/or alignment issues on newer systems with a
   "natural word width" of more than 2 bytes.
   Please note that the structure members are now reordered by size
   (top-down), to prevent internal padding and optimize memory usage!
 */
   typedef struct local_file_header {                 /* LOCAL */
       zusz_t csize;
       zusz_t ucsize;
       ulg last_mod_dos_datetime;
       ulg crc32;
       uch version_needed_to_extract[2];
       ush general_purpose_bit_flag;
       ush compression_method;
       ush filename_length;
       ush extra_field_length;
   } local_file_hdr;

   typedef struct central_directory_file_header {     /* CENTRAL */
       zusz_t csize;
       zusz_t ucsize;
       zusz_t relative_offset_local_header;
       ulg last_mod_dos_datetime;
       ulg crc32;
       ulg external_file_attributes;
       zuvl_t disk_number_start;
       ush internal_file_attributes;
       uch version_made_by[2];
       uch version_needed_to_extract[2];
       ush general_purpose_bit_flag;
       ush compression_method;
       ush filename_length;
       ush extra_field_length;
       ush file_comment_length;
   } cdir_file_hdr;

   typedef struct end_central_dir_record {            /* END CENTRAL */
       zusz_t size_central_directory;
       zusz_t offset_start_central_directory;
       zucn_t num_entries_centrl_dir_ths_disk;
       zucn_t total_entries_central_dir;
       zuvl_t number_this_disk;
       zuvl_t num_disk_start_cdir;
       int have_ecr64;                  /* valid Zip64 ecdir-record exists */
       int is_zip64_archive;            /* Zip64 ecdir-record is mandatory */
       ush zipfile_comment_length;
       zusz_t ec_start, ec_end;         /* offsets of start and end of the
                                           end of central directory record,
                                           including if present the Zip64
                                           end of central directory locator,
                                           which immediately precedes the
                                           end of central directory record */
       zusz_t ec64_start, ec64_end;     /* if have_ecr64 is true, then these
                                           are the offsets of the start and
                                           end of the Zip64 end of central
                                           directory record */
   } ecdir_rec;


/* Huffman code lookup table entry--this entry is four bytes for machines
   that have 16-bit pointers (e.g. PC's in the small or medium model).
   Valid extra bits are 0..16.  e == 31 is EOB (end of block), e == 32
   means that v is a literal, 32 < e < 64 means that v is a pointer to
   the next table, which codes (e & 31)  bits, and lastly e == 99 indicates
   an unused code.  If a code with e == 99 is looked up, this implies an
   error in the data. */

struct huft {
    uch e;                /* number of extra bits or operation */
    uch b;                /* number of bits in this code or subcode */
    union {
        ush n;            /* literal, length base, or distance base */
        struct huft *t;   /* pointer to next level of table */
    } v;
};


typedef struct _APIDocStruct {
    char *compare;
    char *function;
    char *syntax;
    char *purpose;
} APIDocStruct;




/*************/
/*  Globals  */
/*************/

#if (defined(OS2) && !defined(FUNZIP))
#  include "os2/os2data.h"
#endif

#include "globals.h"



/*************************/
/*  Function Prototypes  */
/*************************/

/*---------------------------------------------------------------------------
    Functions in unzip.c (initialization routines):
  ---------------------------------------------------------------------------*/

#ifndef WINDLL
   int    MAIN                   OF((int argc, char **argv));
   int    unzip                  OF((__GPRO__ int argc, char **argv));
   int    uz_opts                OF((__GPRO__ int *pargc, char ***pargv));
   int    usage                  OF((__GPRO__ int error));
#endif /* !WINDLL */

/*---------------------------------------------------------------------------
    Functions in process.c (main driver routines):
  ---------------------------------------------------------------------------*/

int      process_zipfiles        OF((__GPRO));
void     free_G_buffers          OF((__GPRO));
/* static int    do_seekable     OF((__GPRO__ int lastchance)); */
/* static int    find_ecrec      OF((__GPRO__ long searchlen)); */
/* static int    process_central_comment OF((__GPRO)); */
int      process_cdir_file_hdr   OF((__GPRO));
int      process_local_file_hdr  OF((__GPRO));
int      getZip64Data            OF((__GPRO__ ZCONST uch *ef_buf,
                                     unsigned ef_len));
#ifdef UNICODE_SUPPORT
  int    getUnicodeData          OF((__GPRO__ ZCONST uch *ef_buf,
                                     unsigned ef_len));
#endif
unsigned ef_scan_for_izux        OF((ZCONST uch *ef_buf, unsigned ef_len,
                                     int ef_is_c, ulg dos_mdatetime,
                                     iztimes *z_utim, ulg *z_uidgid));
#if (defined(RISCOS) || defined(ACORN_FTYPE_NFS))
   zvoid *getRISCOSexfield       OF((ZCONST uch *ef_buf, unsigned ef_len));
#endif

#ifndef SFX

/*---------------------------------------------------------------------------
    Functions in zipinfo.c (`zipinfo-style' listing routines):
  ---------------------------------------------------------------------------*/

#ifndef NO_ZIPINFO
#ifndef WINDLL
   int   zi_opts                 OF((__GPRO__ int *pargc, char ***pargv));
#endif
void     zi_end_central          OF((__GPRO));
int      zipinfo                 OF((__GPRO));
/* static int      zi_long       OF((__GPRO__ zusz_t *pEndprev)); */
/* static int      zi_short      OF((__GPRO)); */
/* static char    *zi_time       OF((__GPRO__ ZCONST ulg *datetimez,
                                     ZCONST time_t *modtimez, char *d_t_str));*/
#endif /* !NO_ZIPINFO */

/*---------------------------------------------------------------------------
    Functions in list.c (generic zipfile-listing routines):
  ---------------------------------------------------------------------------*/

int      list_files              OF((__GPRO));
#ifdef TIMESTAMP
   int   get_time_stamp          OF((__GPRO__  time_t *last_modtime,
                                     ulg *nmember));
#endif
int      ratio                   OF((zusz_t uc, zusz_t c));
void     fnprint                 OF((__GPRO));

#endif /* !SFX */

/*---------------------------------------------------------------------------
    Functions in fileio.c:
  ---------------------------------------------------------------------------*/

int      open_input_file      OF((__GPRO));
int      open_outfile         OF((__GPRO));                    /* also vms.c */
void     undefer_input        OF((__GPRO));
void     defer_leftover_input OF((__GPRO));
unsigned readbuf              OF((__GPRO__ char *buf, register unsigned len));
int      readbyte             OF((__GPRO));
int      fillinbuf            OF((__GPRO));
int      seek_zipf            OF((__GPRO__ zoff_t abs_offset));
#ifdef FUNZIP
   int   flush                OF((__GPRO__ ulg size));  /* actually funzip.c */
#else
   int   flush                OF((__GPRO__ uch *buf, ulg size, int unshrink));
#endif
/* static int  disk_error     OF((__GPRO)); */
void     handler              OF((int signal));
time_t   dos_to_unix_time     OF((ulg dos_datetime));
int      check_for_newer      OF((__GPRO__ char *filename)); /* os2,vmcms,vms */
int      do_string            OF((__GPRO__ unsigned int length, int option));
ush      makeword             OF((ZCONST uch *b));
ulg      makelong             OF((ZCONST uch *sig));
zusz_t   makeint64            OF((ZCONST uch *sig));
char    *fzofft               OF((__GPRO__ zoff_t val,
                                  ZCONST char *pre, ZCONST char *post));
#if (!defined(STR_TO_ISO) || defined(NEED_STR2ISO))
   char *str2iso              OF((char *dst, ZCONST char *src));
#endif
#if (!defined(STR_TO_OEM) || defined(NEED_STR2OEM))
   char *str2oem              OF((char *dst, ZCONST char *src));
#endif
#ifdef NO_STRNICMP
   int   zstrnicmp            OF((register ZCONST char *s1,
                                  register ZCONST char *s2,
                                  register unsigned n));
#endif
#ifdef REGULUS
   int   zstat                OF((ZCONST char *p, struct stat *s));
#endif
#ifdef ZMEM   /* MUST be ifdef'd because of conflicts with the standard def. */
   zvoid *memset OF((register zvoid *, register int, register unsigned int));
   int    memcmp OF((register ZCONST zvoid*, register ZCONST zvoid *,
                     register unsigned int));
   zvoid *memcpy OF((register zvoid *, register ZCONST zvoid *,
                     register unsigned int));
#endif
#ifdef NEED_UZMBCLEN
   extent uzmbclen          OF((ZCONST unsigned char *ptr));
#endif
#ifdef NEED_UZMBSCHR
   unsigned char *uzmbschr  OF((ZCONST unsigned char *str, unsigned int c));
#endif
#ifdef NEED_UZMBSRCHR
   unsigned char *uzmbsrchr OF((ZCONST unsigned char *str, unsigned int c));
#endif
#ifdef SMALL_MEM
   char *fLoadFarString       OF((__GPRO__ const char Far *sz));
   char *fLoadFarStringSmall  OF((__GPRO__ const char Far *sz));
   char *fLoadFarStringSmall2 OF((__GPRO__ const char Far *sz));
   #ifndef zfstrcpy
     char Far * Far zfstrcpy  OF((char Far *s1, const char Far *s2));
   #endif
   #if (!defined(SFX) && !defined(zfstrcmp))
     int Far zfstrcmp         OF((const char Far *s1, const char Far *s2));
   #endif
#endif


/*---------------------------------------------------------------------------
    Functions in extract.c:
  ---------------------------------------------------------------------------*/

int    extract_or_test_files     OF((__GPRO));
/* static int   store_info          OF((void)); */
/* static int   extract_or_test_member   OF((__GPRO)); */
/* static int   TestExtraField   OF((__GPRO__ uch *ef, unsigned ef_len)); */
/* static int   test_OS2         OF((__GPRO__ uch *eb, unsigned eb_size)); */
/* static int   test_NT          OF((__GPRO__ uch *eb, unsigned eb_size)); */
#ifndef SFX
  unsigned find_compr_idx        OF((unsigned compr_methodnum));
#endif
int    memextract                OF((__GPRO__ uch *tgt, ulg tgtsize,
                                     ZCONST uch *src, ulg srcsize));
int    memflush                  OF((__GPRO__ ZCONST uch *rawbuf, ulg size));
#if (defined(VMS) || defined(VMS_TEXT_CONV))
   uch   *extract_izvms_block    OF((__GPRO__ ZCONST uch *ebdata,
                                     unsigned size, unsigned *retlen,
                                     ZCONST uch *init, unsigned needlen));
#endif
char  *fnfilter                  OF((ZCONST char *raw, uch *space,
                                     extent size));

/*---------------------------------------------------------------------------
    Decompression functions:
  ---------------------------------------------------------------------------*/

#if (!defined(SFX) && !defined(FUNZIP))
int    explode                   OF((__GPRO));                  /* explode.c */
#endif
int    huft_free                 OF((struct huft *t));          /* inflate.c */
int    huft_build                OF((__GPRO__ ZCONST unsigned *b, unsigned n,
                                     unsigned s, ZCONST ush *d, ZCONST uch *e,
                                     struct huft **t, unsigned *m));
#ifdef USE_ZLIB
   int    UZinflate              OF((__GPRO__ int is_defl64));  /* inflate.c */
#  define inflate_free(x)        inflateEnd(&((Uz_Globs *)(&G))->dstrm)
#else
   int    inflate                OF((__GPRO__ int is_defl64));  /* inflate.c */
   int    inflate_free           OF((__GPRO));                  /* inflate.c */
#endif /* ?USE_ZLIB */
#if (!defined(SFX) && !defined(FUNZIP))
#ifndef COPYRIGHT_CLEAN
   int    unreduce               OF((__GPRO));                 /* unreduce.c */
/* static void  LoadFollowers    OF((__GPRO__ f_array *follower, uch *Slen));
                                                                * unreduce.c */
#endif /* !COPYRIGHT_CLEAN */
#ifndef LZW_CLEAN
   int    unshrink               OF((__GPRO));                 /* unshrink.c */
/* static void  partial_clear    OF((__GPRO));                  * unshrink.c */
#endif /* !LZW_CLEAN */
#endif /* !SFX && !FUNZIP */
#ifdef USE_BZIP2
   int    UZbunzip2              OF((__GPRO));                  /* extract.c */
   void   bz_internal_error      OF((int bzerrcode));           /* ubz2err.c */
#endif

/*---------------------------------------------------------------------------
    Internal API functions (only included in DLL versions):
  ---------------------------------------------------------------------------*/

#ifdef DLL
   void     setFileNotFound       OF((__GPRO));                     /* api.c */
   int      unzipToMemory         OF((__GPRO__ char *zip, char *file,
                                      UzpBuffer *retstr));          /* api.c */
   int      redirect_outfile      OF((__GPRO));                     /* api.c */
   int      writeToMemory         OF((__GPRO__ ZCONST uch *rawbuf,
                                      extent size));                /* api.c */
   int      close_redirect        OF((__GPRO));                     /* api.c */
   /* this obsolescent entry point kept for compatibility: */
   int      UzpUnzip              OF((int argc, char **argv));/* use UzpMain */
#ifdef OS2DLL
   int      varmessage            OF((__GPRO__ ZCONST uch *buf, ulg size));
   int      varputchar            OF((__GPRO__ int c));         /* rexxapi.c */
   int      finish_REXX_redirect  OF((__GPRO));                 /* rexxapi.c */
#endif
#ifdef API_DOC
   void     APIhelp               OF((__GPRO__ int argc, char **argv));
#endif                                                          /* apihelp.c */
#endif /* DLL */

/*---------------------------------------------------------------------------
    MSDOS-only functions:
  ---------------------------------------------------------------------------*/

#ifdef MSDOS
#if (!defined(FUNZIP) && !defined(SFX) && !defined(WINDLL))
   void     check_for_windows     OF((ZCONST char *app));         /* msdos.c */
#endif
#if (defined(__GO32__) || defined(__EMX__))
   unsigned _dos_getcountryinfo(void *);                          /* msdos.c */
#if (!defined(__DJGPP__) || (__DJGPP__ < 2))
   unsigned _dos_setftime(int, unsigned, unsigned);               /* msdos.c */
   unsigned _dos_setfileattr(const char *, unsigned);             /* msdos.c */
   unsigned _dos_creat(const char *, unsigned, int *);            /* msdos.c */
   void _dos_getdrive(unsigned *);                                /* msdos.c */
   unsigned _dos_close(int);                                      /* msdos.c */
#endif /* !__DJGPP__ || (__DJGPP__ < 2) */
#endif /* __GO32__ || __EMX__ */
#endif

/*---------------------------------------------------------------------------
    OS/2-only functions:
  ---------------------------------------------------------------------------*/

#ifdef OS2   /* GetFileTime conflicts with something in Win32 header files */
#if (defined(REENTRANT) && defined(USETHREADID))
   ulg   GetThreadId          OF((void));
#endif
   int   GetCountryInfo       OF((void));                           /* os2.c */
   long  GetFileTime          OF((ZCONST char *name));              /* os2.c */
/* static void  SetPathAttrTimes OF((__GPRO__ int flags, int dir));    os2.c */
/* static int   SetEAs        OF((__GPRO__ const char *path,
                                  void *eablock));                     os2.c */
/* static int   SetACL        OF((__GPRO__ const char *path,
                                  void *eablock));                     os2.c */
/* static int   IsFileNameValid OF((const char *name));                os2.c */
/* static void  map2fat       OF((char *pathcomp, char **pEndFAT));    os2.c */
/* static int   SetLongNameEA OF((char *name, char *longname));        os2.c */
/* static void  InitNLS       OF((void));                              os2.c */
   int   IsUpperNLS           OF((int nChr));                       /* os2.c */
   int   ToLowerNLS           OF((int nChr));                       /* os2.c */
   void  DebugMalloc          OF((void));                           /* os2.c */
#endif

/*---------------------------------------------------------------------------
    QDOS-only functions:
  ---------------------------------------------------------------------------*/

#ifdef QDOS
   int    QMatch              (uch, uch);
   void   QFilename           (__GPRO__ char *);
   char  *Qstrfix             (char *);
   int    QReturn             (int zip_error);
#endif

/*---------------------------------------------------------------------------
    TOPS20-only functions:
  ---------------------------------------------------------------------------*/

#ifdef TOPS20
   int    upper               OF((char *s));                     /* tops20.c */
   int    enquote             OF((char *s));                     /* tops20.c */
   int    dequote             OF((char *s));                     /* tops20.c */
   int    fnlegal             OF(()); /* error if prototyped? */ /* tops20.c */
#endif

/*---------------------------------------------------------------------------
    VM/CMS- and MVS-only functions:
  ---------------------------------------------------------------------------*/

#ifdef CMS_MVS
   extent getVMMVSexfield     OF((char *type, uch *ef_block, unsigned datalen));
   FILE  *vmmvs_open_infile   OF((__GPRO));                       /* vmmvs.c */
   void   close_infile        OF((__GPRO));                       /* vmmvs.c */
#endif

/*---------------------------------------------------------------------------
    VMS-only functions:
  ---------------------------------------------------------------------------*/

#ifdef VMS
   int    check_format        OF((__GPRO));                         /* vms.c */
/* int    open_outfile        OF((__GPRO));           * (see fileio.c) vms.c */
/* int    flush               OF((__GPRO__ uch *rawbuf, unsigned size,
                                  int final_flag));   * (see fileio.c) vms.c */
   char  *vms_msg_text        OF((void));                           /* vms.c */
#ifdef RETURN_CODES
   void   return_VMS          OF((__GPRO__ int zip_error));         /* vms.c */
#else
   void   return_VMS          OF((int zip_error));                  /* vms.c */
#endif
#ifdef VMSCLI
   ulg    vms_unzip_cmdline   OF((int *, char ***));            /* cmdline.c */
   int    VMSCLI_usage        OF((__GPRO__ int error));         /* cmdline.c */
#endif
#endif

/*---------------------------------------------------------------------------
    WIN32-only functions:
  ---------------------------------------------------------------------------*/

#ifdef WIN32
   int   IsWinNT        OF((void));                               /* win32.c */
#ifdef NTSD_EAS
   void  process_defer_NT     OF((__GPRO));                       /* win32.c */
   int   test_NTSD      OF((__GPRO__ uch *eb, unsigned eb_size,
                            uch *eb_ucptr, ulg eb_ucsize));       /* win32.c */
#  define TEST_NTSD     test_NTSD
#endif
#ifdef W32_STAT_BANDAID
   int   zstat_win32    OF((__W32STAT_GLOBALS__
                            const char *path, z_stat *buf));      /* win32.c */
#endif
#endif

/*---------------------------------------------------------------------------
    Miscellaneous/shared functions:
  ---------------------------------------------------------------------------*/

Uz_Globs *globalsCtor    OF((void));                            /* globals.c */

int      envargs         OF((int *Pargc, char ***Pargv,
                             ZCONST char *envstr, ZCONST char *envstr2));
                                                                /* envargs.c */
void     mksargs         OF((int *argcp, char ***argvp));       /* envargs.c */

int      match           OF((ZCONST char *s, ZCONST char *p,
                             int ic __WDLPRO));                   /* match.c */
int      iswild          OF((ZCONST char *p));                    /* match.c */

/* declarations of public CRC-32 functions have been moved into crc32.h
   (free_crc_table(), get_crc_table(), crc32())                      crc32.c */

int      dateformat      OF((void));                                /* local */
char     dateseparator   OF((void));                                /* local */
#ifndef WINDLL
   void  version         OF((__GPRO));                              /* local */
#endif
int      mapattr         OF((__GPRO));                              /* local */
int      mapname         OF((__GPRO__ int renamed));                /* local */
int      checkdir        OF((__GPRO__ char *pathcomp, int flag));   /* local */
char    *do_wild         OF((__GPRO__ ZCONST char *wildzipfn));     /* local */
char    *GetLoadPath     OF((__GPRO));                              /* local */
#if (defined(MORE) && (defined(ATH_BEO_UNX) || defined(QDOS) || defined(VMS)))
   int screensize        OF((int *tt_rows, int *tt_cols));          /* local */
# if defined(VMS)
   int screenlinewrap    OF((void));                                /* local */
# endif
#endif /* MORE && (ATH_BEO_UNX || QDOS || VMS) */
#ifdef OS2_W32
   int   SetFileSize     OF((FILE *file, zusz_t filesize));         /* local */
#endif
#ifndef MTS /* macro in MTS */
   void  close_outfile   OF((__GPRO));                              /* local */
#endif
#ifdef SET_SYMLINK_ATTRIBS
   int  set_symlnk_attribs  OF((__GPRO__ slinkentry *slnk_entry));  /* local */
#endif
#ifdef SET_DIR_ATTRIB
   int   defer_dir_attribs  OF((__GPRO__ direntry **pd));           /* local */
   int   set_direc_attribs  OF((__GPRO__ direntry *d));             /* local */
#endif
#ifdef TIMESTAMP
# ifdef WIN32
   int   stamp_file      OF((__GPRO__
                             ZCONST char *fname, time_t modtime));  /* local */
# else
   int   stamp_file      OF((ZCONST char *fname, time_t modtime));  /* local */
# endif
#endif
#ifdef NEED_ISO_OEM_INIT
   void  prepare_ISO_OEM_translat   OF((__GPRO));                   /* local */
#endif
#if (defined(MALLOC_WORK) && defined(MY_ZCALLOC))
   zvoid far *zcalloc    OF((unsigned int, unsigned int));
   zvoid zcfree          OF((zvoid far *));
#endif /* MALLOC_WORK && MY_ZCALLOC */
#ifdef SYSTEM_SPECIFIC_CTOR
   void  SYSTEM_SPECIFIC_CTOR   OF((__GPRO));                       /* local */
#endif
#ifdef SYSTEM_SPECIFIC_DTOR
   void  SYSTEM_SPECIFIC_DTOR   OF((__GPRO));                       /* local */
#endif





/************/
/*  Macros  */
/************/

#ifndef MAX
#  define MAX(a,b)   ((a) > (b) ? (a) : (b))
#endif
#ifndef MIN
#  define MIN(a,b)   ((a) < (b) ? (a) : (b))
#endif

#ifdef DEBUG
#  if (defined(THEOS) && defined(NO_BOGUS_SPC))
#    define NO_DEBUG_IN_MACROS
#    define Trace(x)   _fprintf x
#  else
#    define Trace(x)   fprintf x
#  endif
#else
#  define Trace(x)
#endif

#ifdef DEBUG_TIME
#  define TTrace(x)  fprintf x
#else
#  define TTrace(x)
#endif

#ifdef NO_DEBUG_IN_MACROS
#  define MTrace(x)
#else
#  define MTrace(x)  Trace(x)
#endif

#if (defined(UNIX) || defined(T20_VMS)) /* generally old systems */
#  define ToLower(x)   ((char)(isupper((int)x)? tolower((int)x) : x))
#else
#  define ToLower      tolower          /* assumed "smart"; used in match() */
#endif

#ifdef USE_STRM_INPUT
   /* ``Replace'' the unbuffered UNIX style I/O function with similar
    * standard C functions from <stdio.h>.
    */
#  define read(fd,buf,n) fread((buf),1,(n),(FILE *)(fd))
#  ifdef zlseek
#    undef zlseek
#  endif
#  define zlseek(fd,o,w) zfseeko((FILE *)(fd),(o),(w))
#  define close(fd) fclose((FILE *)(fd))
#endif /* USE_STRM_INPUT */

/* The return value of the Info() "macro function" is never checked in
 * UnZip. Otherwise, to get the same behaviour as for (*G.message)(), the
 * Info() definition for "FUNZIP" would have to be corrected:
 * #define Info(buf,flag,sprf_arg) \
 *      (fputs((char *)(sprintf sprf_arg, (buf)), \
 *             (flag)&1? stderr : stdout) < 0)
 */
#ifndef Info   /* may already have been defined for redirection */
#  ifdef FUNZIP
#    define Info(buf,flag,sprf_arg) \
     fputs((char *)(sprintf sprf_arg, (buf)), (flag)&1? stderr : stdout)
#  else
#    ifdef INT_SPRINTF  /* optimized version for "int sprintf()" flavour */
#      define Info(buf,flag,sprf_arg) \
       (*G.message)((zvoid *)&G, (uch *)(buf), (ulg)sprintf sprf_arg, (flag))
#    else          /* generic version, does not use sprintf() return value */
#      define Info(buf,flag,sprf_arg) \
       (*G.message)((zvoid *)&G, (uch *)(buf), \
                     (ulg)(sprintf sprf_arg, strlen((char *)(buf))), (flag))
#    endif
#  endif
#endif /* !Info */

/*  This wrapper macro around fzofft() is just defined to "hide" the
 *  argument needed to reference the global storage buffers.
 */
#define FmZofft(val, pre, post) fzofft(__G__ val, pre, post)

/*  The following macro wrappers around the fnfilter function are used many
 *  times to prepare archive entry names or name components for displaying
 *  listings and (warning/error) messages. They use sections in the upper half
 *  of 'slide' as buffer, since their output is normally fed through the
 *  Info() macro with 'slide' (the start of this area) as message buffer.
 */
#define FnFilter1(fname) \
        fnfilter((fname), slide + (extent)(WSIZE>>1), (extent)(WSIZE>>2))
#define FnFilter2(fname) \
        fnfilter((fname), slide + (extent)((WSIZE>>1) + (WSIZE>>2)),\
                 (extent)(WSIZE>>2))

#ifndef FUNZIP   /* used only in inflate.c */
#  define MESSAGE(str,len,flag)  (*G.message)((zvoid *)&G,(str),(len),(flag))
#endif

#if 0            /* Optimization: use the (const) result of crc32(0L,NULL,0) */
#  define CRCVAL_INITIAL  crc32(0L, NULL, 0)
#else
#  define CRCVAL_INITIAL  0L
#endif

#ifdef SYMLINKS
   /* This macro defines the Zip "made by" hosts that are considered
      to support storing symbolic link entries. */
#  define SYMLINK_HOST(hn) ((hn) == UNIX_ || (hn) == ATARI_ || \
      (hn) == ATHEOS_ || (hn) == BEOS_ || (hn) == VMS_)
#endif

#ifndef TEST_NTSD               /* "NTSD valid?" checking function */
#  define TEST_NTSD     NULL    /*   ... is not available */
#endif

#define SKIP_(length) if(length&&((error=do_string(__G__ length,SKIP))!=0))\
  {error_in_archive=error; if(error>1) return error;}

/*
 *  Skip a variable-length field, and report any errors.  Used in zipinfo.c
 *  and unzip.c in several functions.
 *
 *  macro SKIP_(length)
 *      ush length;
 *  {
 *      if (length && ((error = do_string(length, SKIP)) != 0)) {
 *          error_in_archive = error;   /-* might be warning *-/
 *          if (error > 1)              /-* fatal *-/
 *              return (error);
 *      }
 *  }
 *
 */


#ifdef FUNZIP
#  define FLUSH(w)  flush(__G__ (ulg)(w))
#  define NEXTBYTE  getc(G.in)   /* redefined in crypt.h if full version */
#else
#  define FLUSH(w)  ((G.mem_mode) ? memflush(__G__ redirSlide,(ulg)(w)) \
                                  : flush(__G__ redirSlide,(ulg)(w),0))
#  define NEXTBYTE  (G.incnt-- > 0 ? (int)(*G.inptr++) : readbyte(__G))
#endif


#define READBITS(nbits,zdest) {if(nbits>G.bits_left) {int temp; G.zipeof=1;\
  while (G.bits_left<=8*(int)(sizeof(G.bitbuf)-1) && (temp=NEXTBYTE)!=EOF) {\
  G.bitbuf|=(ulg)temp<<G.bits_left; G.bits_left+=8; G.zipeof=0;}}\
  zdest=(shrint)((unsigned)G.bitbuf&mask_bits[nbits]);G.bitbuf>>=nbits;\
  G.bits_left-=nbits;}

/*
 * macro READBITS(nbits,zdest)    * only used by unreduce and unshrink *
 *  {
 *      if (nbits > G.bits_left) {  * fill G.bitbuf, 8*sizeof(ulg) bits *
 *          int temp;
 *
 *          G.zipeof = 1;
 *          while (G.bits_left <= 8*(int)(sizeof(G.bitbuf)-1) &&
 *                 (temp = NEXTBYTE) != EOF) {
 *              G.bitbuf |= (ulg)temp << G.bits_left;
 *              G.bits_left += 8;
 *              G.zipeof = 0;
 *          }
 *      }
 *      zdest = (shrint)((unsigned)G.bitbuf & mask_bits[nbits]);
 *      G.bitbuf >>= nbits;
 *      G.bits_left -= nbits;
 *  }
 *
 */


/* GRR:  should use StringLower for STRLOWER macro if possible */

/*
 *  Copy the zero-terminated string in str1 into str2, converting any
 *  uppercase letters to lowercase as we go.  str2 gets zero-terminated
 *  as well, of course.  str1 and str2 may be the same character array.
 */
#ifdef _MBCS
#  define STRLOWER(str1, str2) \
   { \
       char  *p, *q, c; unsigned i; \
       p = (char *)(str1); \
       q = (char *)(str2); \
       while ((c = *p) != '\0') { \
           if ((i = CLEN(p)) > 1) { \
               while (i--) *q++ = *p++; \
           } else { \
               *q++ = (char)(isupper((int)(c))? tolower((int)(c)) : c); \
               p++; \
           } \
       } \
       *q = '\0'; \
   }
#else
#  define STRLOWER(str1, str2) \
   { \
       char  *p, *q; \
       p = (char *)(str1) - 1; \
       q = (char *)(str2); \
       while (*++p) \
           *q++ = (char)(isupper((int)(*p))? tolower((int)(*p)) : *p); \
       *q = '\0'; \
   }
#endif
/*
 *  NOTES:  This macro makes no assumptions about the characteristics of
 *    the tolower() function or macro (beyond its existence), nor does it
 *    make assumptions about the structure of the character set (i.e., it
 *    should work on EBCDIC machines, too).  The fact that either or both
 *    of isupper() and tolower() may be macros has been taken into account;
 *    watch out for "side effects" (in the C sense) when modifying this
 *    macro.
 */

#ifndef foreign
#  define foreign(c)  (c)
#endif

#ifndef native
#  define native(c)   (c)
#  define A_TO_N(str1)
#else
#  ifndef NATIVE
#    define NATIVE     "native chars"
#  endif
#  define A_TO_N(str1) {register uch *p;\
     for (p=(uch *)(str1); *p; p++) *p=native(*p);}
#endif
/*
 *  Translate the zero-terminated string in str1 from ASCII to the native
 *  character set. The translation is performed in-place and uses the
 *  "native" macro to translate each character.
 *
 *  NOTE:  Using the "native" macro means that is it the only part of unzip
 *    which knows which translation table (if any) is actually in use to
 *    produce the native character set.  This makes adding new character set
 *    translation tables easy, insofar as all that is needed is an appropriate
 *    "native" macro definition and the translation table itself.  Currently,
 *    the only non-ASCII native character set implemented is EBCDIC, but this
 *    may not always be so.
 */


/* default setup for internal codepage: assume ISO 8859-1 compatibility!! */
#if (!defined(NATIVE) && !defined(CRTL_CP_IS_ISO) && !defined(CRTL_CP_IS_OEM))
#  define CRTL_CP_IS_ISO
#endif


/*  Translate "extended ASCII" chars (OEM coding for DOS and OS/2; else
 *  ISO-8859-1 [ISO Latin 1, Win Ansi,...]) into the internal "native"
 *  code page.  As with A_TO_N(), conversion is done in place.
 */
#ifndef _ISO_INTERN
#  ifdef CRTL_CP_IS_OEM
#    ifndef IZ_ISO2OEM_ARRAY
#      define IZ_ISO2OEM_ARRAY
#    endif
#    define _ISO_INTERN(str1) if (iso2oem) {register uch *p;\
       for (p=(uch *)(str1); *p; p++)\
         *p = native((*p & 0x80) ? iso2oem[*p & 0x7f] : *p);}
#  else
#    define _ISO_INTERN(str1)   A_TO_N(str1)
#  endif
#endif

#ifndef _OEM_INTERN
#  ifdef CRTL_CP_IS_OEM
#    define _OEM_INTERN(str1)   A_TO_N(str1)
#  else
#    ifndef IZ_OEM2ISO_ARRAY
#      define IZ_OEM2ISO_ARRAY
#    endif
#    define _OEM_INTERN(str1) if (oem2iso) {register uch *p;\
       for (p=(uch *)(str1); *p; p++)\
         *p = native((*p & 0x80) ? oem2iso[*p & 0x7f] : *p);}
#  endif
#endif

#ifndef STR_TO_ISO
#  ifdef CRTL_CP_IS_ISO
#    define STR_TO_ISO          strcpy
#  else
#    define STR_TO_ISO          str2iso
#    define NEED_STR2ISO
#  endif
#endif

#ifndef STR_TO_OEM
#  ifdef CRTL_CP_IS_OEM
#    define STR_TO_OEM          strcpy
#  else
#    define STR_TO_OEM          str2oem
#    define NEED_STR2OEM
#  endif
#endif

#if (!defined(INTERN_TO_ISO) && !defined(ASCII2ISO))
#  ifdef CRTL_CP_IS_OEM
     /* know: "ASCII" is "OEM" */
#    define ASCII2ISO(c) \
       ((((c) & 0x80) && oem2iso) ? oem2iso[(c) & 0x7f] : (c))
#    if (defined(NEED_STR2ISO) && !defined(CRYP_USES_OEM2ISO))
#      define CRYP_USES_OEM2ISO
#    endif
#  else
     /* assume: "ASCII" is "ISO-ANSI" */
#    define ASCII2ISO(c) (c)
#  endif
#endif

#if (!defined(INTERN_TO_OEM) && !defined(ASCII2OEM))
#  ifdef CRTL_CP_IS_OEM
     /* know: "ASCII" is "OEM" */
#    define ASCII2OEM(c) (c)
#  else
     /* assume: "ASCII" is "ISO-ANSI" */
#    define ASCII2OEM(c) \
       ((((c) & 0x80) && iso2oem) ? iso2oem[(c) & 0x7f] : (c))
#    if (defined(NEED_STR2OEM) && !defined(CRYP_USES_ISO2OEM))
#      define CRYP_USES_ISO2OEM
#    endif
#  endif
#endif

/* codepage conversion setup for testp() in crypt.c */
#ifdef CRTL_CP_IS_ISO
#  ifndef STR_TO_CP2
#    define STR_TO_CP2  STR_TO_OEM
#  endif
#else
#  ifdef CRTL_CP_IS_OEM
#    ifndef STR_TO_CP2
#      define STR_TO_CP2  STR_TO_ISO
#    endif
#  else /* native internal CP is neither ISO nor OEM */
#    ifndef STR_TO_CP1
#      define STR_TO_CP1  STR_TO_ISO
#    endif
#    ifndef STR_TO_CP2
#      define STR_TO_CP2  STR_TO_OEM
#    endif
#  endif
#endif


/* Convert filename (and file comment string) into "internal" charset.
 * This macro assumes that Zip entry filenames are coded in OEM (IBM DOS)
 * codepage when made on
 *  -> DOS (this includes 16-bit Windows 3.1)  (FS_FAT_)
 *  -> OS/2                                    (FS_HPFS_)
 *  -> Win95/WinNT with Nico Mak's WinZip      (FS_NTFS_ && hostver == "5.0")
 * EXCEPTIONS:
 *  PKZIP for Windows 2.5, 2.6, and 4.0 flag their entries as "FS_FAT_", but
 *  the filename stored in the local header is coded in Windows ANSI (CP 1252
 *  resp. ISO 8859-1 on US and western Europe locale settings).
 *  Likewise, PKZIP for UNIX 2.51 flags its entries as "FS_FAT_", but the
 *  filenames stored in BOTH the local and the central header are coded
 *  in the local system's codepage (usually ANSI codings like ISO 8859-1).
 *
 * All other ports are assumed to code zip entry filenames in ISO 8859-1.
 */
#ifndef Ext_ASCII_TO_Native
#  define Ext_ASCII_TO_Native(string, hostnum, hostver, isuxatt, islochdr) \
    if (((hostnum) == FS_FAT_ && \
         !(((islochdr) || (isuxatt)) && \
           ((hostver) == 25 || (hostver) == 26 || (hostver) == 40))) || \
        (hostnum) == FS_HPFS_ || \
        ((hostnum) == FS_NTFS_ && (hostver) == 50)) { \
        _OEM_INTERN((string)); \
    } else { \
        _ISO_INTERN((string)); \
    }
#endif



/**********************/
/*  Global constants  */
/**********************/

   extern ZCONST unsigned near mask_bits[17];
   extern ZCONST char *fnames[2];

#ifdef EBCDIC
   extern ZCONST uch ebcdic[];
#endif
#ifdef IZ_ISO2OEM_ARRAY
   extern ZCONST uch Far *iso2oem;
   extern ZCONST uch Far iso2oem_850[];
#endif
#ifdef IZ_OEM2ISO_ARRAY
   extern ZCONST uch Far *oem2iso;
   extern ZCONST uch Far oem2iso_850[];
#endif

   extern ZCONST char Far  VersionDate[];
   extern ZCONST char Far  CentSigMsg[];
#ifndef SFX
   extern ZCONST char Far  EndSigMsg[];
#endif
   extern ZCONST char Far  SeekMsg[];
   extern ZCONST char Far  FilenameNotMatched[];
   extern ZCONST char Far  ExclFilenameNotMatched[];
   extern ZCONST char Far  ReportMsg[];

#ifndef SFX
   extern ZCONST char Far  Zipnfo[];
   extern ZCONST char Far  CompiledWith[];
#endif /* !SFX */



/***********************************/
/*  Global (shared?) RTL variables */
/***********************************/

#ifdef DECLARE_ERRNO
   extern int             errno;
#endif

/*---------------------------------------------------------------------
    Unicode Support
    28 August 2005
  ---------------------------------------------------------------------*/
#if (defined(UNICODE_SUPPORT) && defined(UNICODE_WCHAR))

  /* Default character when a zwchar too big for wchar_t */
# define zwchar_to_wchar_t_default_char '_'

  /* Default character string when wchar_t does not convert to mb */
# define wide_to_mb_default_string "_"

  /* wide character type */
  typedef unsigned long zwchar;

  /* UTF-8 related conversion functions, currently found in process.c */

# if 0 /* currently unused */
  /* check if string is all ASCII */
  int is_ascii_string OF((ZCONST char *mbstring));
# endif /* unused */

  /* convert UTF-8 string to multi-byte string */
  char *utf8_to_local_string OF((ZCONST char *utf8_string, int escape_all));

  /* convert UTF-8 string to wide string */
  zwchar *utf8_to_wide_string OF((ZCONST char *utf8_string));

  /* convert wide string to multi-byte string */
  char *wide_to_local_string OF((ZCONST zwchar *wide_string, int escape_all));

# if 0 /* currently unused */
  /* convert local string to multi-byte display string */
  char *local_to_display_string OF((ZCONST char *local_string));
# endif /* unused */

  /* convert wide character to escape string */
  char *wide_to_escape_string OF((unsigned long));

# define utf8_to_escaped_string(utf8_string) \
         utf8_to_local_string(utf8_string, TRUE)

# if 0 /* currently unused */
  /* convert escape string to wide character */
  unsigned long escape_string_to_wide OF((ZCONST char *escape_string));

  /* convert local to UTF-8 */
  char *local_to_utf8_string OF ((ZCONST char *local_string));

  /* convert local to wide string */
  zwchar *local_to_wide_string OF ((ZCONST char *local_string));

  /* convert wide string to UTF-8 */
  char *wide_to_utf8_string OF((ZCONST zwchar *wide_string));
# endif /* unused */

#endif /* UNICODE_SUPPORT && UNICODE_WCHAR */


#endif /* !__unzpriv_h */