unzip2.h

GSview 4.6 PostScript previewer。Ghostscript在MS-Windows, OS/2 and Unix下的图形化接口

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

#ifdef REGULUS  /* returns the inode number on success(!)...argh argh argh */
#  define stat(p,s) zstat(p,s)
#endif

#define STRNICMP zstrnicmp



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

#ifdef EFT
#  define LONGINT off_t  /* Amdahl UTS nonsense ("extended file types") */
#else
#  define LONGINT long
#endif

#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;
   typedef void zvoid;
#else /* !MODERN */
#  ifndef AOS_VS         /* mostly modern? */
#    ifndef CMS_MVS
       LONGINT lseek();
#    endif
#    ifdef VAXC          /* not fully modern, but does have stdlib.h and void */
#      include <stdlib.h>
#    else
       char *malloc();
#      define void int
#    endif /* ?VAXC */
#  endif /* !AOS_VS */
   typedef unsigned int extent;
   typedef char zvoid;
#endif /* ?MODERN */



typedef unsigned char   uch;    /* code assumes unsigned bytes; these type-  */
typedef unsigned short  ush;    /*  defs replace byte/UWORD/ULONG (which are */
typedef unsigned long   ulg;    /*  predefined on some systems) & match zip  */

/* InputFn is not yet used and is likely to change: */
#ifdef PROTO
   typedef int   (MsgFn)    (zvoid *pG, uch *buf, ulg size, int flag);
   typedef int   (InputFn)  (zvoid *pG, uch *buf, int *size, int flag);
   typedef void  (PauseFn)  (zvoid *pG, ZCONST char *prompt, int flag);
   typedef int   (PasswdFn) (zvoid *pG, int *rcnt, char *pwbuf, int size,
                             ZCONST char *zfn, ZCONST char *efn);
#ifdef WINDLL
   typedef int   (WINAPI ReplaceFn)       (char *);
   typedef void  (WINAPI SoundFn)         (void);
#endif
#else
   typedef int   (MsgFn)    ();
   typedef int   (InputFn)  ();
   typedef void  (PauseFn)  ();
   typedef int   (PasswdFn) ();
#ifdef WINDLL
   typedef int   (WINAPI ReplaceFn)       ();
   typedef void  (WINAPI SoundFn)         ();
#endif
#endif

typedef struct _UzpBuffer {   /* rxstr */
    ulg   strlength;          /* length of string  */
    char  *strptr;            /* pointer to string */
} UzpBuffer;

typedef struct _UzpInit {
    ulg structlen;            /* length of the struct being passed */

    /* GRR: can we assume that each of these is a 32-bit pointer?  if not,
     * does it matter? add "far" keyword to make sure? */
    MsgFn *msgfn;
    InputFn *inputfn;
    PauseFn *pausefn;

    void (*userfn)();   /* user init function to be called after globals */
                        /*  constructed and initialized */

    /* pointer to program's environment area or something? */
    /* hooks for performance testing? */
    /* hooks for extra unzip -v output? (detect CPU or other hardware?) */
    /* anything else?  let me (Greg) know... */
} UzpInit;

/* intended to be a private struct: */
typedef struct _ver {
    uch major;              /* e.g., integer 5 */
    uch minor;              /* e.g., 2 */
    uch patchlevel;         /* e.g., 0 */
    uch not_used;
} _version_type;

typedef struct _UzpVer {
    ulg structlen;          /* length of the struct being passed */
    ulg flag;               /* bit 0: is_beta   bit 1: uses_zlib */
    char *betalevel;        /* e.g., "g BETA" or "" */
    char *date;             /* e.g., "4 Sep 95" (beta) or "4 September 1995" */
    char *zlib_version;     /* e.g., "0.95" or NULL */
    _version_type unzip;
    _version_type zipinfo;
    _version_type os2dll;
    _version_type windll;
} UzpVer;

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


#define UZPINIT_LEN   sizeof(UzpInit)
#define UZPVER_LEN    sizeof(UzpVer)
#define cbList(func)  int (*func)(char *filename, cdir_file_hdr *crec)


/*---------------------------------------------------------------------------
    Grab system-dependent definition of EXPENTRY for prototypes below.
  ---------------------------------------------------------------------------*/

#if 0
#if (defined(OS2) && !defined(FUNZIP))
#  ifdef UNZIP_INTERNAL
#    define INCL_NOPM
#    define INCL_DOSNLS
#    define INCL_DOSPROCESS
#    define INCL_DOSDEVICES
#    define INCL_DOSDEVIOCTL
#    define INCL_DOSERRORS
#    define INCL_DOSMISC
#    ifdef OS2DLL
#      define INCL_REXXSAA
#      include <rexxsaa.h>
#    endif
#  endif /* UNZIP_INTERNAL */
#  include <os2.h>
#  define UZ_EXP EXPENTRY
#endif /* OS2 && !FUNZIP */
#endif /* 0 */

#if (defined(OS2) && !defined(FUNZIP))
#  if defined(__IBMC__) || defined(__WATCOMC__)
#    define UZ_EXP  _System    /* compiler keyword */
#  else
#    define UZ_EXP
#  endif
#endif /* OS2 && !FUNZIP */

#ifdef WINDLL
#  ifndef EXPENTRY
#    define UZ_EXP WINAPI
#  else
#    define UZ_EXP EXPENTRY
#  endif
#endif

#ifndef UZ_EXP
#  define UZ_EXP
#endif


/*---------------------------------------------------------------------------
    Return (and exit) values of the public UnZip API functions.
  ---------------------------------------------------------------------------*/

/* external return codes */
#define PK_OK              0   /* no error */
#define PK_COOL            0   /* no error */
#define PK_GNARLY          0   /* no error */
#define PK_WARN            1   /* warning error */
#define PK_ERR             2   /* error in zipfile */
#define PK_BADERR          3   /* severe error in zipfile */
#define PK_MEM             4   /* insufficient memory (during initialization) */
#define PK_MEM2            5   /* insufficient memory (password failure) */
#define PK_MEM3            6   /* insufficient memory (file decompression) */
#define PK_MEM4            7   /* insufficient memory (memory decompression) */
#define PK_MEM5            8   /* insufficient memory (not yet used) */
#define PK_NOZIP           9   /* zipfile not found */
#define PK_PARAM          10   /* bad or illegal parameters specified */
#define PK_FIND           11   /* no files found */
#define PK_DISK           50   /* disk full */
#define PK_EOF            51   /* unexpected EOF */

#define IZ_CTRLC          80   /* user hit ^C to terminate */
#define IZ_UNSUP          81   /* no files found: all unsup. compr/encrypt. */
#define IZ_BADPWD         82   /* no files found: all had bad password */

/* internal and DLL-only return codes */
#define IZ_DIR            76   /* potential zipfile is a directory */
#define IZ_CREATED_DIR    77   /* directory created: set time and permissions */
#define IZ_VOL_LABEL      78   /* volume label, but can't set on hard disk */
#define IZ_EF_TRUNC       79   /* local extra field truncated (PKZIP'd) */

/* return codes of password fetches (negative = user abort; positive = error) */
#define IZ_PW_ENTERED      0   /* got some password string; use/try it */
#define IZ_PW_CANCEL      -1   /* no password available (for this entry) */
#define IZ_PW_CANCELALL   -2   /* no password, skip any further pwd. request */
#define IZ_PW_ERROR        5   /* = PK_MEM2 : failure (no mem, no tty, ...) */


/*---------------------------------------------------------------------------
    Prototypes for public UnZip API (DLL) functions.
  ---------------------------------------------------------------------------*/

int      UZ_EXP UzpMain            OF((int argc, char **argv));
int      UZ_EXP UzpAltMain         OF((int argc, char **argv, UzpInit *init));
UzpVer * UZ_EXP UzpVersion         OF((void));
int      UZ_EXP UzpUnzipToMemory   OF((char *zip, char *file,
                                       UzpBuffer *retstr));
int      UZ_EXP UzpFileTree        OF((char *name, cbList(callBack),
                                       char *cpInclude[], char *cpExclude[]));

/* default I/O functions (can be swapped out via UzpAltMain() entry point): */

int      UzpMessagePrnt     OF((zvoid *pG, uch *buf, ulg size, int flag));
int      UzpMessageNull     OF((zvoid *pG, uch *buf, ulg size, int flag));
int      UzpInput           OF((zvoid *pG, uch *buf, int *size, int flag));
void     UzpMorePause       OF((zvoid *pG, ZCONST char *prompt, int flag));
int      UzpPassword        OF((zvoid *pG, int *rcnt, char *pwbuf, int size,
                                ZCONST char *zfn, ZCONST char *efn));


/*---------------------------------------------------------------------------
    Remaining private stuff for UnZip compilation.
  ---------------------------------------------------------------------------*/

#ifdef UNZIP_INTERNAL
#  include "unzpriv.h"
#endif


#endif /* !__unzip_h */