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/* iowin32.c -- IO base function header for compress/uncompress .zip
Version 1.2.0, September 16th, 2017
part of the MiniZip project
Copyright (C) 2012-2017 Nathan Moinvaziri
https://github.com/nmoinvaz/minizip
Copyright (C) 2009-2010 Mathias Svensson
Modifications for Zip64 support
http://result42.com
Copyright (C) 1998-2010 Gilles Vollant
http://www.winimage.com/zLibDll/minizip.html
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.
*/
#include <stdlib.h>
#include <tchar.h>
#include "zlib.h"
#include "ioapi.h"
#include "iowin32.h"
#ifndef INVALID_HANDLE_VALUE
# define INVALID_HANDLE_VALUE (0xFFFFFFFF)
#endif
#ifndef INVALID_SET_FILE_POINTER
# define INVALID_SET_FILE_POINTER ((DWORD)-1)
#endif
#if defined(WINAPI_FAMILY_PARTITION) && (!(defined(IOWIN32_USING_WINRT_API)))
# if !WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_DESKTOP)
# define IOWIN32_USING_WINRT_API 1
# endif
#endif
voidpf ZCALLBACK win32_open_file_func (voidpf opaque, const char *filename, int mode);
uint32_t ZCALLBACK win32_read_file_func (voidpf opaque, voidpf stream, void* buf, uint32_t size);
uint32_t ZCALLBACK win32_write_file_func (voidpf opaque, voidpf stream, const void *buf, uint32_t size);
uint64_t ZCALLBACK win32_tell64_file_func (voidpf opaque, voidpf stream);
long ZCALLBACK win32_seek64_file_func (voidpf opaque, voidpf stream, uint64_t offset, int origin);
int ZCALLBACK win32_close_file_func (voidpf opaque, voidpf stream);
int ZCALLBACK win32_error_file_func (voidpf opaque, voidpf stream);
typedef struct
{
HANDLE hf;
int error;
void *filename;
int filenameLength;
} WIN32FILE_IOWIN;
static void win32_translate_open_mode(int mode,
DWORD* lpdwDesiredAccess,
DWORD* lpdwCreationDisposition,
DWORD* lpdwShareMode,
DWORD* lpdwFlagsAndAttributes)
{
*lpdwDesiredAccess = 0;
*lpdwShareMode = 0;
*lpdwCreationDisposition = 0;
*lpdwFlagsAndAttributes = FILE_ATTRIBUTE_NORMAL;
if ((mode & ZLIB_FILEFUNC_MODE_READWRITEFILTER) == ZLIB_FILEFUNC_MODE_READ)
{
*lpdwDesiredAccess = GENERIC_READ;
*lpdwCreationDisposition = OPEN_EXISTING;
*lpdwShareMode = FILE_SHARE_READ | FILE_SHARE_WRITE;
}
else if (mode & ZLIB_FILEFUNC_MODE_EXISTING)
{
*lpdwDesiredAccess = GENERIC_WRITE | GENERIC_READ;
*lpdwCreationDisposition = OPEN_EXISTING;
}
else if (mode & ZLIB_FILEFUNC_MODE_CREATE)
{
*lpdwDesiredAccess = GENERIC_WRITE | GENERIC_READ;
*lpdwCreationDisposition = CREATE_ALWAYS;
}
}
static voidpf win32_build_iowin(HANDLE hFile)
{
WIN32FILE_IOWIN *iowin = NULL;
if ((hFile != NULL) && (hFile != INVALID_HANDLE_VALUE))
{
iowin = (WIN32FILE_IOWIN *)malloc(sizeof(WIN32FILE_IOWIN));
if (iowin == NULL)
{
CloseHandle(hFile);
return NULL;
}
memset(iowin, 0, sizeof(WIN32FILE_IOWIN));
iowin->hf = hFile;
}
return (voidpf)iowin;
}
voidpf ZCALLBACK win32_open64_file_func(voidpf opaque, const void *filename, int mode)
{
DWORD dwDesiredAccess,dwCreationDisposition,dwShareMode,dwFlagsAndAttributes;
HANDLE hFile = NULL;
WIN32FILE_IOWIN *iowin = NULL;
win32_translate_open_mode(mode, &dwDesiredAccess, &dwCreationDisposition, &dwShareMode, &dwFlagsAndAttributes);
if ((filename != NULL) && (dwDesiredAccess != 0))
{
#ifdef IOWIN32_USING_WINRT_API
#ifdef UNICODE
hFile = CreateFile2((LPCTSTR)filename, dwDesiredAccess, dwShareMode, dwCreationDisposition, NULL);
#else
WCHAR filenameW[FILENAME_MAX + 0x200 + 1];
MultiByteToWideChar(CP_ACP, 0, (const char*)filename, -1, filenameW, FILENAME_MAX + 0x200);
hFile = CreateFile2(filenameW, dwDesiredAccess, dwShareMode, dwCreationDisposition, NULL);
#endif
#else
hFile = CreateFile((LPCTSTR)filename, dwDesiredAccess, dwShareMode, NULL, dwCreationDisposition, dwFlagsAndAttributes, NULL);
#endif
}
iowin = win32_build_iowin(hFile);
if (iowin == NULL)
return NULL;
iowin->filenameLength = _tcslen(filename) + 1;
iowin->filename = (void*)malloc(iowin->filenameLength * sizeof(TCHAR));
_tcsncpy(iowin->filename, filename, iowin->filenameLength);
return iowin;
}
voidpf ZCALLBACK win32_open64_file_funcA(voidpf opaque, const void *filename, int mode)
{
DWORD dwDesiredAccess, dwCreationDisposition, dwShareMode, dwFlagsAndAttributes ;
HANDLE hFile = NULL;
WIN32FILE_IOWIN *iowin = NULL;
win32_translate_open_mode(mode, &dwDesiredAccess, &dwCreationDisposition, &dwShareMode, &dwFlagsAndAttributes);
if ((filename != NULL) && (dwDesiredAccess != 0))
{
#ifdef IOWIN32_USING_WINRT_API
WCHAR filenameW[FILENAME_MAX + 0x200 + 1];
MultiByteToWideChar(CP_ACP, 0, (const char*)filename, -1, filenameW, FILENAME_MAX + 0x200);
hFile = CreateFile2(filenameW, dwDesiredAccess, dwShareMode, dwCreationDisposition, NULL);
#else
hFile = CreateFileA((LPCSTR)filename, dwDesiredAccess, dwShareMode, NULL, dwCreationDisposition, dwFlagsAndAttributes, NULL);
#endif
}
iowin = win32_build_iowin(hFile);
if (iowin == NULL)
return NULL;
iowin->filenameLength = strlen(filename) + 1;
iowin->filename = (void*)malloc(iowin->filenameLength * sizeof(char));
strncpy(iowin->filename, filename, iowin->filenameLength);
return iowin;
}
voidpf ZCALLBACK win32_open64_file_funcW(voidpf opaque, const void *filename, int mode)
{
DWORD dwDesiredAccess, dwCreationDisposition, dwShareMode, dwFlagsAndAttributes;
HANDLE hFile = NULL;
WIN32FILE_IOWIN *iowin = NULL;
win32_translate_open_mode(mode, &dwDesiredAccess, &dwCreationDisposition, &dwShareMode, &dwFlagsAndAttributes);
if ((filename != NULL) && (dwDesiredAccess != 0))
{
#ifdef IOWIN32_USING_WINRT_API
hFile = CreateFile2((LPCWSTR)filename, dwDesiredAccess, dwShareMode, dwCreationDisposition, NULL);
#else
hFile = CreateFileW((LPCWSTR)filename, dwDesiredAccess, dwShareMode, NULL, dwCreationDisposition, dwFlagsAndAttributes, NULL);
#endif
}
iowin = win32_build_iowin(hFile);
if (iowin == NULL)
return NULL;
if (iowin->filename == NULL)
{
iowin->filenameLength = wcslen(filename) + 1;
iowin->filename = (void*)malloc(iowin->filenameLength * sizeof(WCHAR));
wcsncpy(iowin->filename, filename, iowin->filenameLength);
}
return iowin;
}
voidpf ZCALLBACK win32_open_file_func(voidpf opaque, const char *filename, int mode)
{
DWORD dwDesiredAccess, dwCreationDisposition, dwShareMode, dwFlagsAndAttributes ;
HANDLE hFile = NULL;
WIN32FILE_IOWIN *iowin = NULL;
win32_translate_open_mode(mode, &dwDesiredAccess, &dwCreationDisposition, &dwShareMode, &dwFlagsAndAttributes);
if ((filename != NULL) && (dwDesiredAccess != 0))
{
#ifdef IOWIN32_USING_WINRT_API
#ifdef UNICODE
hFile = CreateFile2((LPCTSTR)filename, dwDesiredAccess, dwShareMode, dwCreationDisposition, NULL);
#else
WCHAR filenameW[FILENAME_MAX + 0x200 + 1];
MultiByteToWideChar(CP_ACP, 0, (const char*)filename, -1, filenameW, FILENAME_MAX + 0x200);
hFile = CreateFile2(filenameW, dwDesiredAccess, dwShareMode, dwCreationDisposition, NULL);
#endif
#else
hFile = CreateFile((LPCTSTR)filename, dwDesiredAccess, dwShareMode, NULL, dwCreationDisposition, dwFlagsAndAttributes, NULL);
#endif
}
iowin = win32_build_iowin(hFile);
if (iowin == NULL)
return NULL;
iowin->filenameLength = _tcslen((TCHAR*)filename) + 1;
iowin->filename = (void*)malloc(iowin->filenameLength * sizeof(TCHAR));
_tcsncpy(iowin->filename, (TCHAR*)filename, iowin->filenameLength);
return iowin;
}
voidpf ZCALLBACK win32_opendisk64_file_func(voidpf opaque, voidpf stream, uint32_t number_disk, int mode)
{
WIN32FILE_IOWIN *iowin = NULL;
TCHAR *diskFilename = NULL;
voidpf ret = NULL;
int i = 0;
if (stream == NULL)
return NULL;
iowin = (WIN32FILE_IOWIN*)stream;
diskFilename = (TCHAR*)malloc(iowin->filenameLength * sizeof(TCHAR));
_tcsncpy(diskFilename, iowin->filename, iowin->filenameLength);
for (i = iowin->filenameLength - 1; i >= 0; i -= 1)
{
if (diskFilename[i] != _T('.'))
continue;
_sntprintf(&diskFilename[i], iowin->filenameLength - i, _T(".z%02d"), number_disk + 1);
break;
}
if (i >= 0)
ret = win32_open64_file_func(opaque, (char*)diskFilename, mode);
free(diskFilename);
return ret;
}
voidpf ZCALLBACK win32_opendisk64_file_funcW(voidpf opaque, voidpf stream, uint32_t number_disk, int mode)
{
WIN32FILE_IOWIN *iowin = NULL;
WCHAR *diskFilename = NULL;
voidpf ret = NULL;
int i = 0;
if (stream == NULL)
return NULL;
iowin = (WIN32FILE_IOWIN*)stream;
diskFilename = (WCHAR*)malloc((iowin->filenameLength + 10) * sizeof(WCHAR));
wcsncpy(diskFilename, iowin->filename, iowin->filenameLength);
for (i = iowin->filenameLength - 1; i >= 0; i -= 1)
{
if (diskFilename[i] != L'.')
continue;
_snwprintf(&diskFilename[i], (iowin->filenameLength + 10) - i, L".z%02d", number_disk + 1);
break;
}
if (i >= 0)
ret = win32_open64_file_funcW(opaque, diskFilename, mode);
free(diskFilename);
return ret;
}
voidpf ZCALLBACK win32_opendisk64_file_funcA(voidpf opaque, voidpf stream, uint32_t number_disk, int mode)
{
WIN32FILE_IOWIN *iowin = NULL;
char *diskFilename = NULL;
voidpf ret = NULL;
int i = 0;
if (stream == NULL)
return NULL;
iowin = (WIN32FILE_IOWIN*)stream;
diskFilename = (char*)malloc(iowin->filenameLength * sizeof(char));
strncpy(diskFilename, iowin->filename, iowin->filenameLength);
for (i = iowin->filenameLength - 1; i >= 0; i -= 1)
{
if (diskFilename[i] != '.')
continue;
_snprintf(&diskFilename[i], iowin->filenameLength - i, ".z%02d", number_disk + 1);
break;
}
if (i >= 0)
ret = win32_open64_file_funcA(opaque, diskFilename, mode);
free(diskFilename);
return ret;
}
voidpf ZCALLBACK win32_opendisk_file_func(voidpf opaque, voidpf stream, uint32_t number_disk, int mode)
{
WIN32FILE_IOWIN *iowin = NULL;
TCHAR *diskFilename = NULL;
voidpf ret = NULL;
int i = 0;
if (stream == NULL)
return NULL;
iowin = (WIN32FILE_IOWIN*)stream;
diskFilename = (TCHAR*)malloc(iowin->filenameLength * sizeof(TCHAR));
_tcsncpy(diskFilename, iowin->filename, iowin->filenameLength);
for (i = iowin->filenameLength - 1; i >= 0; i -= 1)
{
if (diskFilename[i] != _T('.'))
continue;
_sntprintf(&diskFilename[i], iowin->filenameLength - i, _T(".z%02d"), number_disk + 1);
break;
}
if (i >= 0)
ret = win32_open_file_func(opaque, (char*)diskFilename, mode);
free(diskFilename);
return ret;
}
uint32_t ZCALLBACK win32_read_file_func(voidpf opaque, voidpf stream, void* buf, uint32_t size)
{
DWORD ret = 0;
HANDLE hFile = NULL;
if (stream != NULL)
hFile = ((WIN32FILE_IOWIN*)stream)->hf;
if (hFile != NULL)
{
if (!ReadFile(hFile, buf, size, &ret, NULL))
{
DWORD dwErr = GetLastError();
if (dwErr == ERROR_HANDLE_EOF)
dwErr = 0;
((WIN32FILE_IOWIN*)stream)->error = (int)dwErr;
}
}
return (uint32_t)ret;
}
uint32_t ZCALLBACK win32_write_file_func(voidpf opaque, voidpf stream, const void *buf, uint32_t size)
{
DWORD ret = 0;
HANDLE hFile = NULL;
if (stream != NULL)
hFile = ((WIN32FILE_IOWIN*)stream)->hf;
if (hFile != NULL)
{
if (!WriteFile(hFile, buf, size, &ret, NULL))
{
DWORD dwErr = GetLastError();
if (dwErr == ERROR_HANDLE_EOF)
dwErr = 0;
((WIN32FILE_IOWIN*)stream)->error = (int)dwErr;
}
}
return (uint32_t)ret;
}
static BOOL win32_setfilepointer_internal(HANDLE hFile, LARGE_INTEGER pos, LARGE_INTEGER *newPos, DWORD dwMoveMethod)
{
#ifdef IOWIN32_USING_WINRT_API
return SetFilePointerEx(hFile, pos, newPos, dwMoveMethod);
#else
LONG lHigh = pos.HighPart;
BOOL ret = TRUE;
DWORD dwNewPos = SetFilePointer(hFile, pos.LowPart, &lHigh, dwMoveMethod);
if ((dwNewPos == INVALID_SET_FILE_POINTER) && (GetLastError() != NO_ERROR))
ret = FALSE;
if ((newPos != NULL) && (ret))
{
newPos->LowPart = dwNewPos;
newPos->HighPart = lHigh;
}
return ret;
#endif
}
long ZCALLBACK win32_tell_file_func(voidpf opaque, voidpf stream)
{
long ret = -1;
HANDLE hFile = NULL;
if (stream != NULL)
hFile = ((WIN32FILE_IOWIN*)stream)->hf;
if (hFile != NULL)
{
LARGE_INTEGER pos;
pos.QuadPart = 0;
if (!win32_setfilepointer_internal(hFile, pos, &pos, FILE_CURRENT))
{
DWORD dwErr = GetLastError();
((WIN32FILE_IOWIN*)stream)->error = (int)dwErr;
ret = -1;
}
else
ret = (long)pos.LowPart;
}
return ret;
}
uint64_t ZCALLBACK win32_tell64_file_func(voidpf opaque, voidpf stream)
{
uint64_t ret = (uint64_t)-1;
HANDLE hFile = NULL;
if (stream != NULL)
hFile = ((WIN32FILE_IOWIN*)stream)->hf;
if (hFile)
{
LARGE_INTEGER pos;
pos.QuadPart = 0;
if (!win32_setfilepointer_internal(hFile, pos, &pos, FILE_CURRENT))
{
DWORD dwErr = GetLastError();
((WIN32FILE_IOWIN*)stream)->error = (int)dwErr;
ret = (uint64_t)-1;
}
else
ret = pos.QuadPart;
}
return ret;
}
long ZCALLBACK win32_seek_file_func(voidpf opaque, voidpf stream, uint32_t offset, int origin)
{
DWORD dwMoveMethod = 0xFFFFFFFF;
HANDLE hFile = NULL;
long ret = -1;
if (stream != NULL)
hFile = ((WIN32FILE_IOWIN*)stream)->hf;
switch (origin)
{
case ZLIB_FILEFUNC_SEEK_CUR:
dwMoveMethod = FILE_CURRENT;
break;
case ZLIB_FILEFUNC_SEEK_END:
dwMoveMethod = FILE_END;
break;
case ZLIB_FILEFUNC_SEEK_SET:
dwMoveMethod = FILE_BEGIN;
break;
default:
return -1;
}
if (hFile != NULL)
{
LARGE_INTEGER pos;
pos.QuadPart = offset;
if (!win32_setfilepointer_internal(hFile, pos, NULL, dwMoveMethod))
{
DWORD dwErr = GetLastError();
((WIN32FILE_IOWIN*)stream)->error = (int)dwErr;
ret = -1;
}
else
ret = 0;
}
return ret;
}
long ZCALLBACK win32_seek64_file_func(voidpf opaque, voidpf stream, uint64_t offset, int origin)
{
DWORD dwMoveMethod = 0xFFFFFFFF;
HANDLE hFile = NULL;
long ret = -1;
if (stream != NULL)
hFile = ((WIN32FILE_IOWIN*)stream)->hf;
switch (origin)
{
case ZLIB_FILEFUNC_SEEK_CUR:
dwMoveMethod = FILE_CURRENT;
break;
case ZLIB_FILEFUNC_SEEK_END:
dwMoveMethod = FILE_END;
break;
case ZLIB_FILEFUNC_SEEK_SET:
dwMoveMethod = FILE_BEGIN;
break;
default:
return -1;
}
if (hFile)
{
LARGE_INTEGER pos;
pos.QuadPart = offset;
if (!win32_setfilepointer_internal(hFile, pos, NULL, dwMoveMethod))
{
DWORD dwErr = GetLastError();
((WIN32FILE_IOWIN*)stream)->error = (int)dwErr;
ret = -1;
}
else
ret = 0;
}
return ret;
}
int ZCALLBACK win32_close_file_func(voidpf opaque, voidpf stream)
{
WIN32FILE_IOWIN* iowin = NULL;
int ret = -1;
if (stream == NULL)
return ret;
iowin = ((WIN32FILE_IOWIN*)stream);
if (iowin->filename != NULL)
free(iowin->filename);
if (iowin->hf != NULL)
{
CloseHandle(iowin->hf);
ret=0;
}
free(stream);
return ret;
}
int ZCALLBACK win32_error_file_func(voidpf opaque, voidpf stream)
{
int ret = -1;
if (stream == NULL)
return ret;
ret = ((WIN32FILE_IOWIN*)stream)->error;
return ret;
}
void fill_win32_filefunc(zlib_filefunc_def *pzlib_filefunc_def)
{
pzlib_filefunc_def->zopen_file = win32_open_file_func;
pzlib_filefunc_def->zopendisk_file = win32_opendisk_file_func;
pzlib_filefunc_def->zread_file = win32_read_file_func;
pzlib_filefunc_def->zwrite_file = win32_write_file_func;
pzlib_filefunc_def->ztell_file = win32_tell_file_func;
pzlib_filefunc_def->zseek_file = win32_seek_file_func;
pzlib_filefunc_def->zclose_file = win32_close_file_func;
pzlib_filefunc_def->zerror_file = win32_error_file_func;
pzlib_filefunc_def->opaque = NULL;
}
void fill_win32_filefunc64(zlib_filefunc64_def *pzlib_filefunc_def)
{
pzlib_filefunc_def->zopen64_file = win32_open64_file_func;
pzlib_filefunc_def->zopendisk64_file = win32_opendisk64_file_func;
pzlib_filefunc_def->zread_file = win32_read_file_func;
pzlib_filefunc_def->zwrite_file = win32_write_file_func;
pzlib_filefunc_def->ztell64_file = win32_tell64_file_func;
pzlib_filefunc_def->zseek64_file = win32_seek64_file_func;
pzlib_filefunc_def->zclose_file = win32_close_file_func;
pzlib_filefunc_def->zerror_file = win32_error_file_func;
pzlib_filefunc_def->opaque = NULL;
}
void fill_win32_filefunc64A(zlib_filefunc64_def *pzlib_filefunc_def)
{
pzlib_filefunc_def->zopen64_file = win32_open64_file_funcA;
pzlib_filefunc_def->zopendisk64_file = win32_opendisk64_file_funcA;
pzlib_filefunc_def->zread_file = win32_read_file_func;
pzlib_filefunc_def->zwrite_file = win32_write_file_func;
pzlib_filefunc_def->ztell64_file = win32_tell64_file_func;
pzlib_filefunc_def->zseek64_file = win32_seek64_file_func;
pzlib_filefunc_def->zclose_file = win32_close_file_func;
pzlib_filefunc_def->zerror_file = win32_error_file_func;
pzlib_filefunc_def->opaque = NULL;
}
void fill_win32_filefunc64W(zlib_filefunc64_def *pzlib_filefunc_def)
{
pzlib_filefunc_def->zopen64_file = win32_open64_file_funcW;
pzlib_filefunc_def->zopendisk64_file = win32_opendisk64_file_funcW;
pzlib_filefunc_def->zread_file = win32_read_file_func;
pzlib_filefunc_def->zwrite_file = win32_write_file_func;
pzlib_filefunc_def->ztell64_file = win32_tell64_file_func;
pzlib_filefunc_def->zseek64_file = win32_seek64_file_func;
pzlib_filefunc_def->zclose_file = win32_close_file_func;
pzlib_filefunc_def->zerror_file = win32_error_file_func;
pzlib_filefunc_def->opaque = NULL;
}