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/* ioapi.h -- IO base function header for compress/uncompress .zip
files using zlib + zip or unzip API
Version 1.01, May 8th, 2004
Copyright (C) 1998-2004 Gilles Vollant
*/
#ifndef _ZLIBIOAPI_H
#define _ZLIBIOAPI_H
#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)
// begin ryan.
#ifndef DWORD
#define DWORD uInt
#endif
#ifndef BYTE
#define BYTE Byte
#endif
// end ryan.
#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 void *(ZCALLBACK *open_file_func)(void *opaque, const char *filename, int mode);
typedef DWORD(ZCALLBACK *read_file_func)(void *opaque, void *stream, void *buf, DWORD size);
typedef DWORD(ZCALLBACK *write_file_func)(void *opaque, void *stream, const void *buf, DWORD size);
typedef DWORD(ZCALLBACK *tell_file_func)(void *opaque, void *stream);
typedef DWORD(ZCALLBACK *seek_file_func)(void *opaque, void *stream, DWORD offset, int origin);
typedef int(ZCALLBACK *close_file_func)(void *opaque, void *stream);
typedef int(ZCALLBACK *testerror_file_func)(void *opaque, void *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;
void *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
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