ioapi.h

Go to the documentation of this file.

/* ioapi.h -- IO base function header for compress/uncompress .zip
   part of the MiniZip project - ( http://www.winimage.com/zLibDll/minizip.html
   )
 
         Copyright (C) 1998-2010 Gilles Vollant (minizip) (
   http://www.winimage.com/zLibDll/minizip.html )
 
         Modifications for Zip64 support
         Copyright (C) 2009-2010 Mathias Svensson ( http://result42.com )
 
         Modified by Sergey A. Tachenov to allow QIODevice API usage.
 
         For more info read MiniZip_info.txt
 
         Changes
 
    Oct-2009 - Defined ZPOS64_T to fpos_t on windows and u_int64_t on linux.
   (might need to find a better why for this) Oct-2009 - Change to fseeko64,
   ftello64 and fopen64 so large files would work on linux. More if/def section
   may be needed to support other platforms Oct-2009 - Defined fxxxx64 calls to
   normal fopen/ftell/fseek so they would compile on windows. (but you should
   use iowin32.c for windows instead)
 
*/
 
#ifndef _ZLIBIOAPI64_H
#define _ZLIBIOAPI64_H
 
#if (!defined(_WIN32)) && (!defined(WIN32))
 
// Linux needs this to support file operation on files larger then 4+GB
// But might need better if/def to select just the platforms that needs them.
 
#ifndef __USE_FILE_OFFSET64
#define __USE_FILE_OFFSET64
#endif
#ifndef __USE_LARGEFILE64
#define __USE_LARGEFILE64
#endif
#ifndef _LARGEFILE64_SOURCE
#define _LARGEFILE64_SOURCE
#endif
#ifndef _FILE_OFFSET_BIT
#define _FILE_OFFSET_BIT 64
#endif
#endif
 
#include <stdio.h>
#include <stdlib.h>
 
#include "zlib.h"
 
#if defined(USE_FILE32API)
#define fopen64 fopen
#define ftello64 ftell
#define fseeko64 fseek
#else
#ifdef _MSC_VER
#define fopen64 fopen
#if (_MSC_VER >= 1400) && (!(defined(NO_MSCVER_FILE64_FUNC)))
#define ftello64 _ftelli64
#define fseeko64 _fseeki64
#else  // old MSC
#define ftello64 ftell
#define fseeko64 fseek
#endif
#endif
#endif
 
/*
#ifndef ZPOS64_T
  #ifdef _WIN32
                #define ZPOS64_T fpos_t
  #else
    #include <stdint.h>
    #define ZPOS64_T uint64_t
  #endif
#endif
*/
 
#ifdef HAVE_MINIZIP64_CONF_H
#include "mz64conf.h"
#endif
 
/* a type choosen by DEFINE */
#ifdef HAVE_64BIT_INT_CUSTOM
typedef 64BIT_INT_CUSTOM_TYPE ZPOS64_T;
#else
#ifdef HAS_STDINT_H
#include "stdint.h"
typedef uint64_t ZPOS64_T;
#else
 
#if defined(_MSC_VER) || defined(__BORLANDC__)
typedef unsigned __int64 ZPOS64_T;
#else
typedef unsigned long long int ZPOS64_T;
#endif
#endif
#endif
 
#ifdef __cplusplus
extern "C" {
#endif
 
#ifndef OF
#define OF _Z_OF
#endif
 
#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(_WIN32) || defined(WINDOWS) || \
     defined(_WINDOWS)) &&                                    \
        defined(CALLBACK) && defined(USEWINDOWS_CALLBACK)
#define ZCALLBACK CALLBACK
#else
#define ZCALLBACK
#endif
#endif
 
typedef voidpf(ZCALLBACK *open_file_func)
        OF((voidpf opaque, voidpf file, 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 int(ZCALLBACK *close_file_func) OF((voidpf opaque, voidpf stream));
typedef int(ZCALLBACK *testerror_file_func) OF((voidpf opaque, voidpf stream));
 
typedef uLong(ZCALLBACK *tell_file_func) OF((voidpf opaque, voidpf stream));
typedef int(ZCALLBACK *seek_file_func)
        OF((voidpf opaque, voidpf stream, uLong offset, int origin));
 
/* here is the "old" 32 bits structure structure */
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;
 
typedef ZPOS64_T(ZCALLBACK *tell64_file_func)
        OF((voidpf opaque, voidpf stream));
typedef int(ZCALLBACK *seek64_file_func)
        OF((voidpf opaque, voidpf stream, ZPOS64_T offset, int origin));
typedef voidpf(ZCALLBACK *open64_file_func)
        OF((voidpf opaque, voidpf file, int mode));
 
typedef struct zlib_filefunc64_def_s {
    open64_file_func zopen64_file;
    read_file_func zread_file;
    write_file_func zwrite_file;
    tell64_file_func ztell64_file;
    seek64_file_func zseek64_file;
    close_file_func zclose_file;
    testerror_file_func zerror_file;
    voidpf opaque;
    close_file_func zfakeclose_file;  // for no-auto-close flag
} zlib_filefunc64_def;
 
void fill_qiodevice64_filefunc OF((zlib_filefunc64_def * pzlib_filefunc_def));
void fill_qiodevice_filefunc OF((zlib_filefunc_def * pzlib_filefunc_def));
 
/* now internal definition, only for zip.c and unzip.h */
typedef struct zlib_filefunc64_32_def_s {
    zlib_filefunc64_def zfile_func64;
    open_file_func zopen32_file;
    tell_file_func ztell32_file;
    seek_file_func zseek32_file;
} zlib_filefunc64_32_def;
 
#define ZREAD64(filefunc, filestream, buf, size)                             \
    ((*((filefunc).zfile_func64.zread_file))((filefunc).zfile_func64.opaque, \
                                             filestream, buf, size))
#define ZWRITE64(filefunc, filestream, buf, size)                             \
    ((*((filefunc).zfile_func64.zwrite_file))((filefunc).zfile_func64.opaque, \
                                              filestream, buf, size))
// #define ZTELL64(filefunc,filestream)            ((*((filefunc).ztell64_file))
//((filefunc).opaque,filestream)) #define ZSEEK64(filefunc,filestream,pos,mode)
//((*((filefunc).zseek64_file)) ((filefunc).opaque,filestream,pos,mode))
#define ZCLOSE64(filefunc, filestream)                                        \
    ((*((filefunc).zfile_func64.zclose_file))((filefunc).zfile_func64.opaque, \
                                              filestream))
#define ZFAKECLOSE64(filefunc, filestream)         \
    ((*((filefunc).zfile_func64.zfakeclose_file))( \
            (filefunc).zfile_func64.opaque, filestream))
#define ZERROR64(filefunc, filestream)                                        \
    ((*((filefunc).zfile_func64.zerror_file))((filefunc).zfile_func64.opaque, \
                                              filestream))
 
voidpf call_zopen64 OF((const zlib_filefunc64_32_def *pfilefunc,
                        voidpf file,
                        int mode));
int call_zseek64 OF((const zlib_filefunc64_32_def *pfilefunc,
                     voidpf filestream,
                     ZPOS64_T offset,
                     int origin));
ZPOS64_T call_ztell64 OF((const zlib_filefunc64_32_def *pfilefunc,
                          voidpf filestream));
 
void fill_zlib_filefunc64_32_def_from_filefunc32(
        zlib_filefunc64_32_def *p_filefunc64_32,
        const zlib_filefunc_def *p_filefunc32);
 
#define ZOPEN64(filefunc, filename, mode) \
    (call_zopen64((&(filefunc)), (filename), (mode)))
#define ZTELL64(filefunc, filestream) \
    (call_ztell64((&(filefunc)), (filestream)))
#define ZSEEK64(filefunc, filestream, pos, mode) \
    (call_zseek64((&(filefunc)), (filestream), (pos), (mode)))
 
#ifdef __cplusplus
}
#endif
 
#endif