1 /* ioapi.h -- IO base function header for compress/uncompress .zip 2 files using zlib + zip or unzip API 3 4 Version 1.01e, February 12th, 2005 5 6 Copyright (C) 1998-2005 Gilles Vollant 7 */ 8 9 #pragma once 10 11 12 #define ZLIB_FILEFUNC_SEEK_CUR (1) 13 #define ZLIB_FILEFUNC_SEEK_END (2) 14 #define ZLIB_FILEFUNC_SEEK_SET (0) 15 16 #define ZLIB_FILEFUNC_MODE_READ (1) 17 #define ZLIB_FILEFUNC_MODE_WRITE (2) 18 #define ZLIB_FILEFUNC_MODE_READWRITEFILTER (3) 19 20 #define ZLIB_FILEFUNC_MODE_EXISTING (4) 21 #define ZLIB_FILEFUNC_MODE_CREATE (8) 22 23 24 #ifndef ZCALLBACK 25 26 #if (defined(WIN32) || defined (WINDOWS) || defined (_WINDOWS)) && defined(CALLBACK) && defined (USEWINDOWS_CALLBACK) 27 #define ZCALLBACK CALLBACK 28 #else 29 #define ZCALLBACK 30 #endif 31 #endif 32 33 #ifndef OF 34 #define OF(args) args 35 #endif 36 37 #ifdef __cplusplus 38 extern "C" { 39 #endif 40 41 typedef voidpf (ZCALLBACK *open_file_func) OF((voidpf opaque, const char* filename, int mode)); 42 typedef uLong (ZCALLBACK *read_file_func) OF((voidpf opaque, voidpf stream, void* buf, uLong size)); 43 typedef uLong (ZCALLBACK *write_file_func) OF((voidpf opaque, voidpf stream, const void* buf, uLong size)); 44 typedef long (ZCALLBACK *tell_file_func) OF((voidpf opaque, voidpf stream)); 45 typedef long (ZCALLBACK *seek_file_func) OF((voidpf opaque, voidpf stream, uLong offset, int origin)); 46 typedef int (ZCALLBACK *close_file_func) OF((voidpf opaque, voidpf stream)); 47 typedef int (ZCALLBACK *testerror_file_func) OF((voidpf opaque, voidpf stream)); 48 49 typedef struct zlib_filefunc_def_s 50 { 51 open_file_func zopen_file; 52 read_file_func zread_file; 53 write_file_func zwrite_file; 54 tell_file_func ztell_file; 55 seek_file_func zseek_file; 56 close_file_func zclose_file; 57 testerror_file_func zerror_file; 58 voidpf opaque; 59 } zlib_filefunc_def; 60 61 62 63 void fill_fopen_filefunc OF((zlib_filefunc_def* pzlib_filefunc_def)); 64 65 #define ZREAD(filefunc,filestream,buf,size) ((*((filefunc).zread_file))((filefunc).opaque,filestream,buf,size)) 66 #define ZWRITE(filefunc,filestream,buf,size) ((*((filefunc).zwrite_file))((filefunc).opaque,filestream,buf,size)) 67 #define ZTELL(filefunc,filestream) ((*((filefunc).ztell_file))((filefunc).opaque,filestream)) 68 #define ZSEEK(filefunc,filestream,pos,mode) ((*((filefunc).zseek_file))((filefunc).opaque,filestream,pos,mode)) 69 #define ZCLOSE(filefunc,filestream) ((*((filefunc).zclose_file))((filefunc).opaque,filestream)) 70 #define ZERROR(filefunc,filestream) ((*((filefunc).zerror_file))((filefunc).opaque,filestream)) 71 72 73 #ifdef __cplusplus 74 } 75 #endif 76