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

  unzip.h

  This header file is used by all of the unzip source files.  Its contents
  are divided into seven more-or-less separate sections:  predefined macros,
  OS-dependent includes, (mostly) OS-independent defines, typedefs, function 
  prototypes (or "prototypes," in the case of non-ANSI compilers), macros, 
  and global-variable declarations.

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



/*****************************************/
/*  Predefined, Machine-specific Macros  */
/*****************************************/

#if (defined(__GO32__) && defined(unix))   /* DOS extender */
#  undef unix
#endif

#if defined(unix) || defined(__convexc__) || defined(M_XENIX)
#  ifndef UNIX
#    define UNIX
#  endif /* !UNIX */
#endif /* unix || __convexc__ || M_XENIX */

/* Much of the following is swiped from zip's tailor.h: */

/* define MSDOS for Turbo C (unless OS/2) and Power C as well as Microsoft C */
#ifdef __POWERC
#  define __TURBOC__
#  define MSDOS
#endif /* __POWERC */
#if (defined(__TURBOC__) && defined(__MSDOS__) && !defined(MSDOS))
#  define MSDOS
#endif

/* use prototypes and ANSI libraries if __STDC__, or Microsoft or Borland C,
 * or Silicon Graphics, or Convex, or IBM C Set/2, or GNU gcc under emx, or
 * or Watcom C, or Macintosh, or Windows NT.
 */
#if (__STDC__ || defined(MSDOS) || defined(sgi) || defined(CONVEX))
#  ifndef PROTO
#    define PROTO
#  endif
#  define MODERN
#endif
#if (defined(__IBMC__) || defined(__EMX__) || defined(__WATCOMC__))
#  ifndef PROTO
#    define PROTO
#  endif
#  define MODERN
#endif
#if (defined(THINK_C) || defined(MPW) || defined(WIN32))
#  ifndef PROTO
#    define PROTO
#  endif
#  define MODERN
#endif

/* turn off prototypes if requested */
#if (defined(NOPROTO) && defined(PROTO))
#  undef PROTO
#endif

/* used to remove arguments in function prototypes for non-ANSI C */
#ifdef PROTO
#  define OF(a) a
#else /* !PROTO */
#  define OF(a) ()
#endif /* ?PROTO */

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

#if (defined(CONVEX) || defined(CRAY) || defined(__SYSTEM_FIVE))
#  ifndef TERMIO
#    define TERMIO
#  endif /* !TERMIO */
#endif /* CONVEX || CRAY || __SYSTEM_FIVE */

#ifdef pyr  /* Pyramid */
#  ifndef ZMEM
#    define ZMEM
#  endif /* !ZMEM */
#endif /* pyr */

#ifdef CRAY
#  ifdef ZMEM
#    undef ZMEM
#  endif /* ZMEM */
#endif /* CRAY */

/* the i386 test below is to catch SCO Unix (which has redefinition
 * warnings if param.h is included), but it probably doesn't hurt if
 * other 386 Unixes get nailed, too...except now that 386BSD and BSDI
 * exist.  Sigh.  <sys/param.h> is mostly included for "BSD", I think.
 * [An alternate fix for SCO Unix is below.]
 */
#if (defined(MINIX) || (defined(i386) && defined(unix)))
#  define NO_PARAM_H
#endif /* MINIX || (i386 && unix) */





/***************************/
/*  OS-Dependent Includes  */
/***************************/

#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() */
#ifndef NO_ERRNO
#  define DECLARE_ERRNO  /* everybody except MSC 6.0, SCO cc, Watcom C/386 */
#endif /* !NO_ERRNO */
#ifdef VMS
#  include <types.h>     /* (placed up here instead of in VMS section below */
#  include <stat.h>      /* because types.h is used in some other headers) */
#else /* !VMS */
#  if !defined(THINK_C) && !defined(MPW)
#    include <sys/types.h>                 /* off_t, time_t, dev_t, ... */
#    include <sys/stat.h>
#  endif /* !THINK_C && !MPW */
#endif /* ?VMS */

#ifdef MODERN
#  if (!defined(M_XENIX) && !(defined(__GNUC__) && defined(sun)))
#    include <stddef.h>
#  endif
#  if (!defined(__GNUC__) && !defined(apollo))   /* both define __STDC__ */
#    include <stdlib.h>    /* standard library prototypes, malloc(), etc. */
#  else
#    ifdef __EMX__
#      include <stdlib.h>  /* emx IS gcc but has stdlib.h */
#    endif
#  endif
#  include <string.h>      /* defines strcpy, strcmp, memcpy, etc. */
   typedef size_t extent;
   typedef void voidp;
#else /* !MODERN */
   char *malloc();
   char *strchr(), *strrchr();
   long lseek();
   typedef unsigned int extent;
#  define void int
   typedef char voidp;
#endif /* ?MODERN */

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



/*---------------------------------------------------------------------------
    Next, a word from our Unix (mostly) sponsors:
  ---------------------------------------------------------------------------*/

#ifdef UNIX
#  ifdef AMIGA
#    include <libraries/dos.h>
#  else /* !AMIGA */
#    ifndef NO_PARAM_H
#if 0  /* [GRR: this is an alternate fix for SCO's redefinition bug] */
#      ifdef NGROUPS_MAX
#        undef NGROUPS_MAX     /* SCO bug:  defined again in <param.h> */
#      endif /* NGROUPS_MAX */
#endif /* 0 */
#      include <sys/param.h>   /* conflict with <sys/types.h>, some systems? */
#    endif /* !NO_PARAM_H */
#  endif /* ?AMIGA */

#  ifndef BSIZE
#    ifdef MINIX
#      define BSIZE   1024
#    else /* !MINIX */
#      define BSIZE   DEV_BSIZE  /* assume common for all Unix systems */
#    endif /* ?MINIX */
#  endif

#  ifndef BSD
#    if (!defined(AMIGA) && !defined(MINIX))
#      define NO_MKDIR           /* for mapname() */
#    endif /* !AMIGA && !MINIX */
#    include <time.h>
     struct tm *gmtime(), *localtime();
#  else   /* BSD */
#    include <sys/time.h>
#    include <sys/timeb.h>
#    ifdef _AIX
#      include <time.h>
#    endif
#  endif

#else   /* !UNIX */
#  define BSIZE   512               /* disk block size */
#endif /* ?UNIX */

#if (defined(V7) || defined(BSD))
#  define strchr    index
#  define strrchr   rindex
#endif

/*---------------------------------------------------------------------------
    And now, our MS-DOS and OS/2 corner:
  ---------------------------------------------------------------------------*/

#ifdef __TURBOC__
#  define DOS_OS2
#  include <sys/timeb.h>      /* for structure ftime                        */
#  ifndef __BORLANDC__        /* there appears to be a bug (?) in Borland's */
#    include <mem.h>          /*   MEM.H related to __STDC__ and far poin-  */
#  endif                      /*   ters. (dpk)  [mem.h included for memcpy] */
#  include <dos.h>            /* for REGS macro (at least for Turbo C 2.0)  */
#else                         /* NOT Turbo C (or Power C)...                */
#  ifdef MSDOS                /*   but still MS-DOS, so we'll assume it's   */
#    ifndef MSC               /*   Microsoft's compiler and fake the ID, if */
#      define MSC             /*   necessary (it is in 5.0; apparently not  */
#    endif                    /*   in 5.1 and 6.0)                          */
#    include <dos.h>          /* for _dos_setftime()                        */
#  endif
#endif

#if (defined(__IBMC__) && defined(__OS2__))
#  define DOS_OS2
#  define S_IFMT 0xF000
#  define timezone _timezone
#endif

#ifdef __WATCOMC__
#  define DOS_OS2
#  define __32BIT__
#  ifdef DECLARE_ERRNO
#    undef DECLARE_ERRNO
#  endif
#  undef far
#  define far
#endif

#ifdef __EMX__
#  define DOS_OS2
#  define __32BIT__
#  define far
#endif /* __EMX__ */

#ifdef MSC                    /* defined for all versions of MSC now         */
#  define DOS_OS2             /* Turbo C under DOS, MSC under DOS or OS/2    */
#  if (defined(_MSC_VER) && (_MSC_VER >= 600))    /* new with 5.1 or 6.0 ... */
#    undef DECLARE_ERRNO      /* errno is now a function in a dynamic link   */
#  endif                      /*   library (or something)--incompatible with */
#endif                        /*   the usual "extern int errno" declaration  */

#ifdef DOS_OS2                /* defined for all MS-DOS and OS/2 compilers   */
#  include <io.h>             /* lseek(), open(), setftime(), dup(), creat() */
#  include <time.h>           /* localtime() */
#endif

#ifdef OS2                    /* defined for all OS/2 compilers */
#  ifdef isupper
#    undef isupper
#  endif
#  ifdef tolower
#    undef tolower
#  endif
#  define isupper(x)   IsUpperNLS((unsigned char)(x))
#  define tolower(x)   ToLowerNLS((unsigned char)(x))
#endif

#ifdef WIN32
#  include <io.h>             /* read(), open(), etc. */
#  include <time.h>
#  include <memory.h>
#  include <direct.h>         /* mkdir() */
#  ifdef FILE_IO_C
#    include <fcntl.h>
#    include <conio.h>
#    include <sys\types.h>
#    include <sys\utime.h>
#    include <windows.h>
#    define DOS_OS2
#    define getch() getchar()
#  endif
#endif

/*---------------------------------------------------------------------------
    Followed by some VMS (mostly) stuff:
  ---------------------------------------------------------------------------*/

#ifdef VMS
#  include <time.h>               /* the usual non-BSD time functions */
#  include <file.h>               /* same things as fcntl.h has */
#  include <rms.h>
#  define _MAX_PATH NAM$C_MAXRSS  /* to define FILNAMSIZ below */
#  define UNIX                    /* can share most of same code from now on */
#  define RETURN    return_VMS    /* VMS interprets return codes incorrectly */
#else /* !VMS */
#  ifndef THINK_C
#    define RETURN  return        /* only used in main() */
#  else
#    define RETURN(v) { int n;\
                        n = (v);\
                        fprintf(stderr, "\npress <return> to continue ");\
                        while (getc(stdin) != '\n');\
                        putc('\n', stderr);\
                        InitCursor();\
                        goto start;\
                      }
#  endif
#  ifdef V7
#    define O_RDONLY  0
#    define O_WRONLY  1
#    define O_RDWR    2
#  else /* !V7 */
#    ifdef MTS
#      include <sys/file.h>     /* MTS uses this instead of fcntl.h */
#      include <timeb.h>
#      include <time.h>
#    else /* !MTS */
#      ifdef COHERENT           /* Coherent 3.10/Mark Williams C */
#        include <sys/fcntl.h>
#        define SHORT_NAMES
#        define tzset  settz
#      else /* !COHERENT */
#        include <fcntl.h>      /* O_BINARY for open() w/o CR/LF translation */
#      endif /* ?COHERENT */
#    endif /* ?MTS */
#  endif /* ?V7 */
#endif /* ?VMS */

#if (defined(MSDOS) || defined(VMS))
#  define DOS_VMS
#endif

/*---------------------------------------------------------------------------
    And some Mac stuff for good measure:
  ---------------------------------------------------------------------------*/

#ifdef THINK_C
#  define MACOS
#  ifndef __STDC__            /* if Think C hasn't defined __STDC__ ... */
#    define __STDC__ 1        /*   make sure it's defined: it needs it */
#  else /* __STDC__ defined */
#    if !__STDC__             /* sometimes __STDC__ is defined as 0; */
#      undef __STDC__         /*   it needs to be 1 or required header */
#      define __STDC__ 1      /*   files are not properly included. */
#    endif /* !__STDC__ */
#  endif /* ?defined(__STDC__) */
#endif /* THINK_C */

#ifdef MPW
#  define MACOS
#  include <Errors.h>
#  include <Files.h>
#  include <Memory.h>
#  include <Quickdraw.h>
#  include <ToolUtils.h>
#  define CtoPstr c2pstr
#  define PtoCstr p2cstr
#  ifdef CR
#    undef  CR
#  endif
#endif /* MPW */

#ifdef MACOS
#  define open(x,y) macopen(x,y, gnVRefNum, glDirID)
#  define close macclose
#  define read macread
#  define write macwrite
#  define lseek maclseek
#  define creat(x,y) maccreat(x, gnVRefNum, glDirID, gostCreator, gostType)
#  define stat(x,y) macstat(x,y,gnVRefNum, glDirID)

#  ifndef isascii
#    define isascii(c) ((unsigned char)(c) <= 0x3F)
#  endif

#  include "macstat.h"

typedef struct _ZipExtraHdr {
    unsigned short header;    /*    2 bytes */
    unsigned short data;      /*    2 bytes */
} ZIP_EXTRA_HEADER;

typedef struct _MacInfoMin {
    unsigned short header;    /*    2 bytes */
    unsigned short data;      /*    2 bytes */
    unsigned long signature;  /*    4 bytes */
    FInfo finfo;              /*   16 bytes */
    unsigned long lCrDat;     /*    4 bytes */
    unsigned long lMdDat;     /*    4 bytes */
    unsigned long flags ;     /*    4 bytes */
    unsigned long lDirID;     /*    4 bytes */
                              /*------------*/
} MACINFOMIN;                 /* = 40 bytes for size of data */

typedef struct _MacInfo {
    unsigned short header;    /*    2 bytes */
    unsigned short data;      /*    2 bytes */
    unsigned long signature;  /*    4 bytes */
    FInfo finfo;              /*   16 bytes */
    unsigned long lCrDat;     /*    4 bytes */
    unsigned long lMdDat;     /*    4 bytes */
    unsigned long flags ;     /*    4 bytes */
    unsigned long lDirID;     /*    4 bytes */
    char rguchVolName[28];    /*   28 bytes */
                              /*------------*/
} MACINFO;                    /* = 68 bytes for size of data */