ioapi_mem.h
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/* ioapi_mem.h -- IO base function header for compress/uncompress .zip
files using zlib + zip or unzip API
This version of ioapi is designed to access memory rather than files.
We do use a region of memory to put data in to and take it out of.
Copyright (C) 2012-2017 Nathan Moinvaziri (https://github.com/nmoinvaz/minizip)
(C) 2003 Justin Fletcher
(C) 1998-2003 Gilles Vollant
This program is distributed under the terms of the same license as zlib.
See the accompanying LICENSE file for the full text of the license.
*/
#ifndef _IOAPI_MEM_H
#define _IOAPI_MEM_H
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "zlib.h"
#include "ioapi.h"
#ifdef __cplusplus
extern "C" {
#endif
voidpf ZCALLBACK fopen_mem_func(voidpf opaque, const char* filename, int mode);
voidpf ZCALLBACK fopendisk_mem_func(voidpf opaque, voidpf stream, uint32_t number_disk, int mode);
uint32_t ZCALLBACK fread_mem_func(voidpf opaque, voidpf stream, void* buf, uint32_t size);
uint32_t ZCALLBACK fwrite_mem_func(voidpf opaque, voidpf stream, const void* buf, uint32_t size);
long ZCALLBACK ftell_mem_func(voidpf opaque, voidpf stream);
long ZCALLBACK fseek_mem_func(voidpf opaque, voidpf stream, uint32_t offset, int origin);
int ZCALLBACK fclose_mem_func(voidpf opaque, voidpf stream);
int ZCALLBACK ferror_mem_func(voidpf opaque, voidpf stream);
typedef struct ourmemory_s {
char *base; /* Base of the region of memory we're using */
uint32_t size; /* Size of the region of memory we're using */
uint32_t limit; /* Furthest we've written */
uint32_t cur_offset; /* Current offset in the area */
int grow; /* Growable memory buffer */
} ourmemory_t;
void fill_memory_filefunc(zlib_filefunc_def* pzlib_filefunc_def, ourmemory_t *ourmem);
#ifdef __cplusplus
}
#endif
#endif