[Igarden-commit] CommonSource/Zip ioapi.c, NONE, 1.1.2.1 ZIP_Prefix.pch, NONE, 1.1.2.1 unzip.h, NONE, 1.1.2.1 unzip.c, NONE, 1.1.2.1 zip.h, NONE, 1.1.2.1 ioapi.h, NONE, 1.1.2.1 zip.c, NONE, 1.1.2.1

[Jeffrey B. <jlb...@us...>]

Update of /cvsroot/igarden/CommonSource/Zip
In directory sc8-pr-cvs2.sourceforge.net:/tmp/cvs-serv17009

Added Files:
      Tag: Release_branch_v1
	ioapi.c ZIP_Prefix.pch unzip.h unzip.c zip.h ioapi.h zip.c 
Log Message:
Initial Checkin

--- NEW FILE: ioapi.h ---
/* ioapi.h -- IO base function header for compress/uncompress .zip
   files using zlib + zip or unzip API

   Version 1.01e, February 12th, 2005

   Copyright (C) 1998-2005 Gilles Vollant
*/

#ifndef _ZLIBIOAPI_H
#define _ZLIBIOAPI_H


#define ZLIB_FILEFUNC_SEEK_CUR (1)
#define ZLIB_FILEFUNC_SEEK_END (2)
#define ZLIB_FILEFUNC_SEEK_SET (0)

#define ZLIB_FILEFUNC_MODE_READ      (1)
#define ZLIB_FILEFUNC_MODE_WRITE     (2)
#define ZLIB_FILEFUNC_MODE_READWRITEFILTER (3)

#define ZLIB_FILEFUNC_MODE_EXISTING (4)
#define ZLIB_FILEFUNC_MODE_CREATE   (8)


#ifndef ZCALLBACK

#if (defined(WIN32) || defined (WINDOWS) || defined (_WINDOWS)) && defined(CALLBACK) && defined (USEWINDOWS_CALLBACK)
#define ZCALLBACK CALLBACK
#else
#define ZCALLBACK
#endif
#endif

#ifdef __cplusplus
extern "C" {
#endif

typedef voidpf (ZCALLBACK *open_file_func) OF((voidpf opaque, const char* filename, int mode));
typedef uLong  (ZCALLBACK *read_file_func) OF((voidpf opaque, voidpf stream, void* buf, uLong size));
typedef uLong  (ZCALLBACK *write_file_func) OF((voidpf opaque, voidpf stream, const void* buf, uLong size));
typedef long   (ZCALLBACK *tell_file_func) OF((voidpf opaque, voidpf stream));
typedef long   (ZCALLBACK *seek_file_func) OF((voidpf opaque, voidpf stream, uLong offset, int origin));
typedef int    (ZCALLBACK *close_file_func) OF((voidpf opaque, voidpf stream));
typedef int    (ZCALLBACK *testerror_file_func) OF((voidpf opaque, voidpf stream));

typedef struct zlib_filefunc_def_s
{
    open_file_func      zopen_file;
    read_file_func      zread_file;
    write_file_func     zwrite_file;
    tell_file_func      ztell_file;
    seek_file_func      zseek_file;
    close_file_func     zclose_file;
    testerror_file_func zerror_file;
    voidpf              opaque;
} zlib_filefunc_def;



void fill_fopen_filefunc OF((zlib_filefunc_def* pzlib_filefunc_def));

#define ZREAD(filefunc,filestream,buf,size) ((*((filefunc).zread_file))((filefunc).opaque,filestream,buf,size))
#define ZWRITE(filefunc,filestream,buf,size) ((*((filefunc).zwrite_file))((filefunc).opaque,filestream,buf,size))
#define ZTELL(filefunc,filestream) ((*((filefunc).ztell_file))((filefunc).opaque,filestream))
#define ZSEEK(filefunc,filestream,pos,mode) ((*((filefunc).zseek_file))((filefunc).opaque,filestream,pos,mode))
#define ZCLOSE(filefunc,filestream) ((*((filefunc).zclose_file))((filefunc).opaque,filestream))
#define ZERROR(filefunc,filestream) ((*((filefunc).zerror_file))((filefunc).opaque,filestream))


#ifdef __cplusplus
}
#endif

#endif


--- NEW FILE: zip.c ---
/* zip.c -- IO on .zip files using zlib
   Version 1.01e, February 12th, 2005

   27 Dec 2004 Rolf Kalbermatter
   Modification to zipOpen2 to support globalComment retrieval.

   Copyright (C) 1998-2005 Gilles Vollant

   Read zip.h for more info
*/


#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <time.h>
#include "zlib.h"
#include "zip.h"

[...1180 lines suppressed...]

    if (err==ZIP_OK) /* zipfile comment length */
        err = ziplocal_putValue(&zi->z_filefunc,zi->filestream,(uLong)size_global_comment,2);

    if ((err==ZIP_OK) && (size_global_comment>0))
        if (ZWRITE(zi->z_filefunc,zi->filestream,
                   global_comment,size_global_comment) != size_global_comment)
                err = ZIP_ERRNO;

    if (ZCLOSE(zi->z_filefunc,zi->filestream) != 0)
        if (err == ZIP_OK)
            err = ZIP_ERRNO;

#ifndef NO_ADDFILEINEXISTINGZIP
    TRYFREE(zi->globalcomment);
#endif
    TRYFREE(zi);

    return err;
}

--- NEW FILE: ioapi.c ---
/* ioapi.c -- IO base function header for compress/uncompress .zip
   files using zlib + zip or unzip API

   Version 1.01e, February 12th, 2005

   Copyright (C) 1998-2005 Gilles Vollant
*/

#include <stdio.h>
#include <stdlib.h>
#include <string.h>

#include "zlib.h"
#include "ioapi.h"



/* I've found an old Unix (a SunOS 4.1.3_U1) without all SEEK_* defined.... */

#ifndef SEEK_CUR
#define SEEK_CUR    1
#endif

#ifndef SEEK_END
#define SEEK_END    2
#endif

#ifndef SEEK_SET
#define SEEK_SET    0
#endif

voidpf ZCALLBACK fopen_file_func OF((
   voidpf opaque,
   const char* filename,
   int mode));

uLong ZCALLBACK fread_file_func OF((
   voidpf opaque,
   voidpf stream,
   void* buf,
   uLong size));

uLong ZCALLBACK fwrite_file_func OF((
   voidpf opaque,
   voidpf stream,
   const void* buf,
   uLong size));

long ZCALLBACK ftell_file_func OF((
   voidpf opaque,
   voidpf stream));

long ZCALLBACK fseek_file_func OF((
   voidpf opaque,
   voidpf stream,
   uLong offset,
   int origin));

int ZCALLBACK fclose_file_func OF((
   voidpf opaque,
   voidpf stream));

int ZCALLBACK ferror_file_func OF((
   voidpf opaque,
   voidpf stream));


voidpf ZCALLBACK fopen_file_func (voidpf opaque, const char* filename, int mode)
//   voidpf opaque;
//   const char* filename;
//   int mode;
{
    FILE* file = NULL;
    const char* mode_fopen = NULL;
    if ((mode & ZLIB_FILEFUNC_MODE_READWRITEFILTER)==ZLIB_FILEFUNC_MODE_READ)
        mode_fopen = "rb";
    else
    if (mode & ZLIB_FILEFUNC_MODE_EXISTING)
        mode_fopen = "r+b";
    else
    if (mode & ZLIB_FILEFUNC_MODE_CREATE)
        mode_fopen = "wb";

    if ((filename!=NULL) && (mode_fopen != NULL))
        file = fopen(filename, mode_fopen);
    return file;
}


uLong ZCALLBACK fread_file_func (opaque, stream, buf, size)
   voidpf opaque;
   voidpf stream;
   void* buf;
   uLong size;
{
    uLong ret;
    ret = (uLong)fread(buf, 1, (size_t)size, (FILE *)stream);
    return ret;
}


uLong ZCALLBACK fwrite_file_func (opaque, stream, buf, size)
   voidpf opaque;
   voidpf stream;
   const void* buf;
   uLong size;
{
    uLong ret;
    ret = (uLong)fwrite(buf, 1, (size_t)size, (FILE *)stream);
    return ret;
}

long ZCALLBACK ftell_file_func (opaque, stream)
   voidpf opaque;
   voidpf stream;
{
    long ret;
    ret = ftell((FILE *)stream);
    return ret;
}

long ZCALLBACK fseek_file_func (opaque, stream, offset, origin)
   voidpf opaque;
   voidpf stream;
   uLong offset;
   int origin;
{
    int fseek_origin=0;
    long ret;
    switch (origin)
    {
    case ZLIB_FILEFUNC_SEEK_CUR :
        fseek_origin = SEEK_CUR;
        break;
    case ZLIB_FILEFUNC_SEEK_END :
        fseek_origin = SEEK_END;
        break;
    case ZLIB_FILEFUNC_SEEK_SET :
        fseek_origin = SEEK_SET;
        break;
    default: return -1;
    }
    ret = 0;
    fseek((FILE *)stream, offset, fseek_origin);
    return ret;
}

int ZCALLBACK fclose_file_func (opaque, stream)
   voidpf opaque;
   voidpf stream;
{
    int ret;
    ret = fclose((FILE *)stream);
    return ret;
}

int ZCALLBACK ferror_file_func (opaque, stream)
   voidpf opaque;
   voidpf stream;
{
    int ret;
    ret = ferror((FILE *)stream);
    return ret;
}

void fill_fopen_filefunc (pzlib_filefunc_def)
  zlib_filefunc_def* pzlib_filefunc_def;
{
    pzlib_filefunc_def->zopen_file = fopen_file_func;
    pzlib_filefunc_def->zread_file = fread_file_func;
    pzlib_filefunc_def->zwrite_file = fwrite_file_func;
    pzlib_filefunc_def->ztell_file = ftell_file_func;
    pzlib_filefunc_def->zseek_file = fseek_file_func;
    pzlib_filefunc_def->zclose_file = fclose_file_func;
    pzlib_filefunc_def->zerror_file = ferror_file_func;
    pzlib_filefunc_def->opaque = NULL;
}

--- NEW FILE: zip.h ---
/* zip.h -- IO for compress .zip files using zlib
   Version 1.01e, February 12th, 2005

   Copyright (C) 1998-2005 Gilles Vollant

   This unzip package allow creates .ZIP file, compatible with PKZip 2.04g
     WinZip, InfoZip tools and compatible.
   Multi volume ZipFile (span) are not supported.
   Encryption compatible with pkzip 2.04g only supported
   Old compressions used by old PKZip 1.x are not supported

  For uncompress .zip file, look at unzip.h


   I WAIT FEEDBACK at mail in...@wi...
   Visit also http://www.winimage.com/zLibDll/unzip.html for evolution

   Condition of use and distribution are the same than zlib :

  This software is provided 'as-is', without any express or implied
  warranty.  In no event will the authors be held liable for any damages
  arising from the use of this software.

  Permission is granted to anyone to use this software for any purpose,
  including commercial applications, and to alter it and redistribute it
  freely, subject to the following restrictions:

  1. The origin of this software must not be misrepresented; you must not
     claim that you wrote the original software. If you use this software
     in a product, an acknowledgment in the product documentation would be
     appreciated but is not required.
  2. Altered source versions must be plainly marked as such, and must not be
     misrepresented as being the original software.
  3. This notice may not be removed or altered from any source distribution.


*/

/* for more info about .ZIP format, see
      http://www.info-zip.org/pub/infozip/doc/appnote-981119-iz.zip
      http://www.info-zip.org/pub/infozip/doc/
   PkWare has also a specification at :
      ftp://ftp.pkware.com/probdesc.zip
*/

#ifndef _zip_H
#define _zip_H

#ifdef __cplusplus
extern "C" {
#endif

#ifndef _ZLIB_H
#include "zlib.h"
#endif

#ifndef _ZLIBIOAPI_H
#include "ioapi.h"
#endif

#if defined(STRICTZIP) || defined(STRICTZIPUNZIP)
/* like the STRICT of WIN32, we define a pointer that cannot be converted
    from (void*) without cast */
typedef struct TagzipFile__ { int unused; } zipFile__;
typedef zipFile__ *zipFile;
#else
typedef voidp zipFile;
#endif

#define ZIP_OK                          (0)
#define ZIP_EOF                         (0)
#define ZIP_ERRNO                       (Z_ERRNO)
#define ZIP_PARAMERROR                  (-102)
#define ZIP_BADZIPFILE                  (-103)
#define ZIP_INTERNALERROR               (-104)

#ifndef DEF_MEM_LEVEL
#  if MAX_MEM_LEVEL >= 8
#    define DEF_MEM_LEVEL 8
#  else
#    define DEF_MEM_LEVEL  MAX_MEM_LEVEL
#  endif
#endif
/* default memLevel */

/* tm_zip contain date/time info */
typedef struct tm_zip_s
{
    uInt tm_sec;            /* seconds after the minute - [0,59] */
    uInt tm_min;            /* minutes after the hour - [0,59] */
    uInt tm_hour;           /* hours since midnight - [0,23] */
    uInt tm_mday;           /* day of the month - [1,31] */
    uInt tm_mon;            /* months since January - [0,11] */
    uInt tm_year;           /* years - [1980..2044] */
} tm_zip;

typedef struct
{
    tm_zip      tmz_date;       /* date in understandable format           */
    uLong       dosDate;       /* if dos_date == 0, tmu_date is used      */
/*    uLong       flag;        */   /* general purpose bit flag        2 bytes */

    uLong       internal_fa;    /* internal file attributes        2 bytes */
    uLong       external_fa;    /* external file attributes        4 bytes */
} zip_fileinfo;

typedef const char* zipcharpc;


#define APPEND_STATUS_CREATE        (0)
#define APPEND_STATUS_CREATEAFTER   (1)
#define APPEND_STATUS_ADDINZIP      (2)

extern zipFile ZEXPORT zipOpen OF((const char *pathname, int append));
/*
  Create a zipfile.
     pathname contain on Windows XP a filename like "c:\\zlib\\zlib113.zip" or on
       an Unix computer "zlib/zlib113.zip".
     if the file pathname exist and append==APPEND_STATUS_CREATEAFTER, the zip
       will be created at the end of the file.
         (useful if the file contain a self extractor code)
     if the file pathname exist and append==APPEND_STATUS_ADDINZIP, we will
       add files in existing zip (be sure you don't add file that doesn't exist)
     If the zipfile cannot be opened, the return value is NULL.
     Else, the return value is a zipFile Handle, usable with other function
       of this zip package.
*/

/* Note : there is no delete function into a zipfile.
   If you want delete file into a zipfile, you must open a zipfile, and create another
   Of couse, you can use RAW reading and writing to copy the file you did not want delte
*/

extern zipFile ZEXPORT zipOpen2 OF((const char *pathname,
                                   int append,
                                   zipcharpc* globalcomment,
                                   zlib_filefunc_def* pzlib_filefunc_def));

extern int ZEXPORT zipOpenNewFileInZip OF((zipFile file,
                       const char* filename,
                       const zip_fileinfo* zipfi,
                       const void* extrafield_local,
                       uInt size_extrafield_local,
                       const void* extrafield_global,
                       uInt size_extrafield_global,
                       const char* comment,
                       int method,
                       int level));
/*
  Open a file in the ZIP for writing.
  filename : the filename in zip (if NULL, '-' without quote will be used
  *zipfi contain supplemental information
  if extrafield_local!=NULL and size_extrafield_local>0, extrafield_local
    contains the extrafield data the the local header
  if extrafield_global!=NULL and size_extrafield_global>0, extrafield_global
    contains the extrafield data the the local header
  if comment != NULL, comment contain the comment string
  method contain the compression method (0 for store, Z_DEFLATED for deflate)
  level contain the level of compression (can be Z_DEFAULT_COMPRESSION)
*/


extern int ZEXPORT zipOpenNewFileInZip2 OF((zipFile file,
                                            const char* filename,
                                            const zip_fileinfo* zipfi,
                                            const void* extrafield_local,
                                            uInt size_extrafield_local,
                                            const void* extrafield_global,
                                            uInt size_extrafield_global,
                                            const char* comment,
                                            int method,
                                            int level,
                                            int raw));

/*
  Same than zipOpenNewFileInZip, except if raw=1, we write raw file
 */

extern int ZEXPORT zipOpenNewFileInZip3 OF((zipFile file,
                                            const char* filename,
                                            const zip_fileinfo* zipfi,
                                            const void* extrafield_local,
                                            uInt size_extrafield_local,
                                            const void* extrafield_global,
                                            uInt size_extrafield_global,
                                            const char* comment,
                                            int method,
                                            int level,
                                            int raw,
                                            int windowBits,
                                            int memLevel,
                                            int strategy,
                                            const char* password,
                                            uLong crcForCtypting));

/*
  Same than zipOpenNewFileInZip2, except
    windowBits,memLevel,,strategy : see parameter strategy in deflateInit2
    password : crypting password (NULL for no crypting)
    crcForCtypting : crc of file to compress (needed for crypting)
 */


extern int ZEXPORT zipWriteInFileInZip OF((zipFile file,
                       const void* buf,
                       unsigned len));
/*
  Write data in the zipfile
*/

extern int ZEXPORT zipCloseFileInZip OF((zipFile file));
/*
  Close the current file in the zipfile
*/

extern int ZEXPORT zipCloseFileInZipRaw OF((zipFile file,
                                            uLong uncompressed_size,
                                            uLong crc32));
/*
  Close the current file in the zipfile, for fiel opened with
    parameter raw=1 in zipOpenNewFileInZip2
  uncompressed_size and crc32 are value for the uncompressed size
*/

extern int ZEXPORT zipClose OF((zipFile file,
                const char* global_comment));
/*
  Close the zipfile
*/

#ifdef __cplusplus
}
#endif

#endif /* _zip_H */

--- NEW FILE: unzip.c ---
/* unzip.c -- IO for uncompress .zip files using zlib
   Version 1.01e, February 12th, 2005

   Copyright (C) 1998-2005 Gilles Vollant

   Read unzip.h for more info
*/

/* Decryption code comes from crypt.c by Info-ZIP but has been greatly reduced in terms of
compatibility with older software. The following is from the original crypt.c. Code
woven in by Terry Thorsen 1/2003.
*/
/*
  Copyright (c) 1990-2000 Info-ZIP.  All rights reserved.

  See the accompanying file LICENSE, version 2000-Apr-09 or later
  (the contents of which are also included in zip.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
[...1568 lines suppressed...]
{
    unz_s* s;
    int err;

    if (file==NULL)
        return UNZ_PARAMERROR;
    s=(unz_s*)file;

    s->pos_in_central_dir = pos;
    s->num_file = s->gi.number_entry;      /* hack */
    err = unzlocal_GetCurrentFileInfoInternal(file,&s->cur_file_info,
                                              &s->cur_file_info_internal,
                                              NULL,0,NULL,0,NULL,0);
    s->current_file_ok = (err == UNZ_OK);
    return err;
}

#ifdef __cplusplus
}: // Extern "C"
#endif

--- NEW FILE: unzip.h ---
/* unzip.h -- IO for uncompress .zip files using zlib
   Version 1.01e, February 12th, 2005

   Copyright (C) 1998-2005 Gilles Vollant

   This unzip package allow extract file from .ZIP file, compatible with PKZip 2.04g
     WinZip, InfoZip tools and compatible.

   Multi volume ZipFile (span) are not supported.
   Encryption compatible with pkzip 2.04g only supported
   Old compressions used by old PKZip 1.x are not supported


   I WAIT FEEDBACK at mail in...@wi...
   Visit also http://www.winimage.com/zLibDll/unzip.htm for evolution

   Condition of use and distribution are the same than zlib :

  This software is provided 'as-is', without any express or implied
  warranty.  In no event will the authors be held liable for any damages
  arising from the use of this software.

  Permission is granted to anyone to use this software for any purpose,
  including commercial applications, and to alter it and redistribute it
  freely, subject to the following restrictions:

  1. The origin of this software must not be misrepresented; you must not
     claim that you wrote the original software. If you use this software
     in a product, an acknowledgment in the product documentation would be
     appreciated but is not required.
  2. Altered source versions must be plainly marked as such, and must not be
     misrepresented as being the original software.
  3. This notice may not be removed or altered from any source distribution.


*/

/* for more info about .ZIP format, see
      http://www.info-zip.org/pub/infozip/doc/appnote-981119-iz.zip
      http://www.info-zip.org/pub/infozip/doc/
   PkWare has also a specification at :
      ftp://ftp.pkware.com/probdesc.zip
*/

#ifndef _unz_H
#define _unz_H

#ifdef __cplusplus
extern "C" {
#endif

#ifndef _ZLIB_H
#include "zlib.h"
#endif

#ifndef _ZLIBIOAPI_H
#include "ioapi.h"
#endif

#if defined(STRICTUNZIP) || defined(STRICTZIPUNZIP)
/* like the STRICT of WIN32, we define a pointer that cannot be converted
    from (void*) without cast */
typedef struct TagunzFile__ { int unused; } unzFile__;
typedef unzFile__ *unzFile;
#else
typedef voidp unzFile;
#endif


#define UNZ_OK                          (0)
#define UNZ_END_OF_LIST_OF_FILE         (-100)
#define UNZ_ERRNO                       (Z_ERRNO)
#define UNZ_EOF                         (0)
#define UNZ_PARAMERROR                  (-102)
#define UNZ_BADZIPFILE                  (-103)
#define UNZ_INTERNALERROR               (-104)
#define UNZ_CRCERROR                    (-105)

/* tm_unz contain date/time info */
typedef struct tm_unz_s
{
    uInt tm_sec;            /* seconds after the minute - [0,59] */
    uInt tm_min;            /* minutes after the hour - [0,59] */
    uInt tm_hour;           /* hours since midnight - [0,23] */
    uInt tm_mday;           /* day of the month - [1,31] */
    uInt tm_mon;            /* months since January - [0,11] */
    uInt tm_year;           /* years - [1980..2044] */
} tm_unz;

/* unz_global_info structure contain global data about the ZIPfile
   These data comes from the end of central dir */
typedef struct unz_global_info_s
{
    uLong number_entry;         /* total number of entries in
                       the central dir on this disk */
    uLong size_comment;         /* size of the global comment of the zipfile */
} unz_global_info;


/* unz_file_info contain information about a file in the zipfile */
typedef struct unz_file_info_s
{
    uLong version;              /* version made by                 2 bytes */
    uLong version_needed;       /* version needed to extract       2 bytes */
    uLong flag;                 /* general purpose bit flag        2 bytes */
    uLong compression_method;   /* compression method              2 bytes */
    uLong dosDate;              /* last mod file date in Dos fmt   4 bytes */
    uLong crc;                  /* crc-32                          4 bytes */
    uLong compressed_size;      /* compressed size                 4 bytes */
    uLong uncompressed_size;    /* uncompressed size               4 bytes */
    uLong size_filename;        /* filename length                 2 bytes */
    uLong size_file_extra;      /* extra field length              2 bytes */
    uLong size_file_comment;    /* file comment length             2 bytes */

    uLong disk_num_start;       /* disk number start               2 bytes */
    uLong internal_fa;          /* internal file attributes        2 bytes */
    uLong external_fa;          /* external file attributes        4 bytes */

    tm_unz tmu_date;
} unz_file_info;

extern int ZEXPORT unzStringFileNameCompare OF ((const char* fileName1,
                                                 const char* fileName2,
                                                 int iCaseSensitivity));
/*
   Compare two filename (fileName1,fileName2).
   If iCaseSenisivity = 1, comparision is case sensitivity (like strcmp)
   If iCaseSenisivity = 2, comparision is not case sensitivity (like strcmpi
                                or strcasecmp)
   If iCaseSenisivity = 0, case sensitivity is defaut of your operating system
    (like 1 on Unix, 2 on Windows)
*/


extern unzFile ZEXPORT unzOpen OF((const char *path));
/*
  Open a Zip file. path contain the full pathname (by example,
     on a Windows XP computer "c:\\zlib\\zlib113.zip" or on an Unix computer
     "zlib/zlib113.zip".
     If the zipfile cannot be opened (file don't exist or in not valid), the
       return value is NULL.
     Else, the return value is a unzFile Handle, usable with other function
       of this unzip package.
*/

extern unzFile ZEXPORT unzOpen2 OF((const char *path,
                                    zlib_filefunc_def* pzlib_filefunc_def));
/*
   Open a Zip file, like unzOpen, but provide a set of file low level API
      for read/write the zip file (see ioapi.h)
*/

extern int ZEXPORT unzClose OF((unzFile file));
/*
  Close a ZipFile opened with unzipOpen.
  If there is files inside the .Zip opened with unzOpenCurrentFile (see later),
    these files MUST be closed with unzipCloseCurrentFile before call unzipClose.
  return UNZ_OK if there is no problem. */

extern int ZEXPORT unzGetGlobalInfo OF((unzFile file,
                                        unz_global_info *pglobal_info));
/*
  Write info about the ZipFile in the *pglobal_info structure.
  No preparation of the structure is needed
  return UNZ_OK if there is no problem. */


extern int ZEXPORT unzGetGlobalComment OF((unzFile file,
                                           char *szComment,
                                           uLong uSizeBuf));
/*
  Get the global comment string of the ZipFile, in the szComment buffer.
  uSizeBuf is the size of the szComment buffer.
  return the number of byte copied or an error code <0
*/


/***************************************************************************/
/* Unzip package allow you browse the directory of the zipfile */

extern int ZEXPORT unzGoToFirstFile OF((unzFile file));
/*
  Set the current file of the zipfile to the first file.
  return UNZ_OK if there is no problem
*/

extern int ZEXPORT unzGoToNextFile OF((unzFile file));
/*
  Set the current file of the zipfile to the next file.
  return UNZ_OK if there is no problem
  return UNZ_END_OF_LIST_OF_FILE if the actual file was the latest.
*/

extern int ZEXPORT unzLocateFile OF((unzFile file,
                     const char *szFileName,
                     int iCaseSensitivity));
/*
  Try locate the file szFileName in the zipfile.
  For the iCaseSensitivity signification, see unzStringFileNameCompare

  return value :
  UNZ_OK if the file is found. It becomes the current file.
  UNZ_END_OF_LIST_OF_FILE if the file is not found
*/


/* ****************************************** */
/* Ryan supplied functions */
/* unz_file_info contain information about a file in the zipfile */
typedef struct unz_file_pos_s
{
    uLong pos_in_zip_directory;   /* offset in zip file directory */
    uLong num_of_file;            /* # of file */
} unz_file_pos;

extern int ZEXPORT unzGetFilePos(
    unzFile file,
    unz_file_pos* file_pos);

extern int ZEXPORT unzGoToFilePos(
    unzFile file,
    unz_file_pos* file_pos);

/* ****************************************** */

extern int ZEXPORT unzGetCurrentFileInfo OF((unzFile file,
                         unz_file_info *pfile_info,
                         char *szFileName,
                         uLong fileNameBufferSize,
                         void *extraField,
                         uLong extraFieldBufferSize,
                         char *szComment,
                         uLong commentBufferSize));
/*
  Get Info about the current file
  if pfile_info!=NULL, the *pfile_info structure will contain somes info about
        the current file
  if szFileName!=NULL, the filemane string will be copied in szFileName
            (fileNameBufferSize is the size of the buffer)
  if extraField!=NULL, the extra field information will be copied in extraField
            (extraFieldBufferSize is the size of the buffer).
            This is the Central-header version of the extra field
  if szComment!=NULL, the comment string of the file will be copied in szComment
            (commentBufferSize is the size of the buffer)
*/

/***************************************************************************/
/* for reading the content of the current zipfile, you can open it, read data
   from it, and close it (you can close it before reading all the file)
   */

extern int ZEXPORT unzOpenCurrentFile OF((unzFile file));
/*
  Open for reading data the current file in the zipfile.
  If there is no error, the return value is UNZ_OK.
*/

extern int ZEXPORT unzOpenCurrentFilePassword OF((unzFile file,
                                                  const char* password));
/*
  Open for reading data the current file in the zipfile.
  password is a crypting password
  If there is no error, the return value is UNZ_OK.
*/

extern int ZEXPORT unzOpenCurrentFile2 OF((unzFile file,
                                           int* method,
                                           int* level,
                                           int raw));
/*
  Same than unzOpenCurrentFile, but open for read raw the file (not uncompress)
    if raw==1
  *method will receive method of compression, *level will receive level of
     compression
  note : you can set level parameter as NULL (if you did not want known level,
         but you CANNOT set method parameter as NULL
*/

extern int ZEXPORT unzOpenCurrentFile3 OF((unzFile file,
                                           int* method,
                                           int* level,
                                           int raw,
                                           const char* password));
/*
  Same than unzOpenCurrentFile, but open for read raw the file (not uncompress)
    if raw==1
  *method will receive method of compression, *level will receive level of
     compression
  note : you can set level parameter as NULL (if you did not want known level,
         but you CANNOT set method parameter as NULL
*/


extern int ZEXPORT unzCloseCurrentFile OF((unzFile file));
/*
  Close the file in zip opened with unzOpenCurrentFile
  Return UNZ_CRCERROR if all the file was read but the CRC is not good
*/

extern int ZEXPORT unzReadCurrentFile OF((unzFile file,
                      voidp buf,
                      unsigned len));
/*
  Read bytes from the current file (opened by unzOpenCurrentFile)
  buf contain buffer where data must be copied
  len the size of buf.

  return the number of byte copied if somes bytes are copied
  return 0 if the end of file was reached
  return <0 with error code if there is an error
    (UNZ_ERRNO for IO error, or zLib error for uncompress error)
*/

extern z_off_t ZEXPORT unztell OF((unzFile file));
/*
  Give the current position in uncompressed data
*/

extern int ZEXPORT unzeof OF((unzFile file));
/*
  return 1 if the end of file was reached, 0 elsewhere
*/

extern int ZEXPORT unzGetLocalExtrafield OF((unzFile file,
                                             voidp buf,
                                             unsigned len));
/*
  Read extra field from the current file (opened by unzOpenCurrentFile)
  This is the local-header version of the extra field (sometimes, there is
    more info in the local-header version than in the central-header)

  if buf==NULL, it return the size of the local extra field

  if buf!=NULL, len is the size of the buffer, the extra header is copied in
    buf.
  the return value is the number of bytes copied in buf, or (if <0)
    the error code
*/

/***************************************************************************/

/* Get the current file offset */
extern uLong ZEXPORT unzGetOffset (unzFile file);

/* Set the current file offset */
extern int ZEXPORT unzSetOffset (unzFile file, uLong pos);



#ifdef __cplusplus
}
#endif

#endif /* _unz_H */

--- NEW FILE: ZIP_Prefix.pch ---
//
// Prefix header for all source files of the 'ZIP' target in the 'ZIP' project.
//

#include <Carbon/Carbon.h>