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/* iowin32.c -- IO base function header for compress/uncompress .zip
Version 1.1, February 14h, 2010
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 )
For more info read MiniZip_info.txt
*/
#include <stdlib.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_APP)
#define IOWIN32_USING_WINRT_API 1
#endif
#endif
voidpf ZCALLBACK win32_open_file_func OF((voidpf opaque, const wchar_t* filename, int mode));
uLong ZCALLBACK win32_read_file_func OF((voidpf opaque, voidpf stream, void* buf, uLong size));
uLong ZCALLBACK win32_write_file_func OF((voidpf opaque, voidpf stream, const void* buf, uLong size));
ZPOS64_T ZCALLBACK win32_tell64_file_func OF((voidpf opaque, voidpf stream));
long ZCALLBACK win32_seek64_file_func OF((voidpf opaque, voidpf stream, ZPOS64_T offset, int origin));
int ZCALLBACK win32_close_file_func OF((voidpf opaque, voidpf stream));
int ZCALLBACK win32_error_file_func OF((voidpf opaque, voidpf stream));
typedef struct
{
HANDLE hf;
int error;
} WIN32FILE_IOWIN;
static void win32_translate_open_mode(int mode,
DWORD* lpdwDesiredAccess,
DWORD* lpdwCreationDisposition,
DWORD* lpdwShareMode,
DWORD* lpdwFlagsAndAttributes)
{
*lpdwDesiredAccess = *lpdwShareMode = *lpdwFlagsAndAttributes = *lpdwCreationDisposition = 0;
if ((mode & ZLIB_FILEFUNC_MODE_READWRITEFILTER) == ZLIB_FILEFUNC_MODE_READ) {
*lpdwDesiredAccess = GENERIC_READ;
*lpdwCreationDisposition = OPEN_EXISTING;
*lpdwShareMode = FILE_SHARE_READ;
}
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)
{
voidpf ret = NULL;
if ((hFile != NULL) && (hFile != INVALID_HANDLE_VALUE)) {
WIN32FILE_IOWIN w32fiow;
w32fiow.hf = hFile;
w32fiow.error = 0;
ret = malloc(sizeof(WIN32FILE_IOWIN));
if (ret == NULL)
CloseHandle(hFile);
else
*((WIN32FILE_IOWIN*)ret) = w32fiow;
}
return ret;
}
voidpf ZCALLBACK win32_open64_file_func(voidpf opaque, const void* filename, int mode)
{
const char* mode_fopen = NULL;
DWORD dwDesiredAccess, dwCreationDisposition, dwShareMode, dwFlagsAndAttributes;
HANDLE hFile = NULL;
win32_translate_open_mode(mode, &dwDesiredAccess, &dwCreationDisposition, &dwShareMode, &dwFlagsAndAttributes);
#ifdef IOWIN32_USING_WINRT_API
#ifdef UNICODE
if ((filename != NULL) && (dwDesiredAccess != 0))
hFile = CreateFile2((LPCTSTR)filename, dwDesiredAccess, dwShareMode, dwCreationDisposition, NULL);
#else
if ((filename != NULL) && (dwDesiredAccess != 0)) {
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
if ((filename != NULL) && (dwDesiredAccess != 0))
hFile = CreateFile((LPCTSTR)filename, dwDesiredAccess, dwShareMode, NULL, dwCreationDisposition, dwFlagsAndAttributes, NULL);
#endif
return win32_build_iowin(hFile);
}
voidpf ZCALLBACK win32_open64_file_funcA(voidpf opaque, const void* filename, int mode)
{
const char* mode_fopen = NULL;
DWORD dwDesiredAccess, dwCreationDisposition, dwShareMode, dwFlagsAndAttributes;
HANDLE hFile = NULL;
win32_translate_open_mode(mode, &dwDesiredAccess, &dwCreationDisposition, &dwShareMode, &dwFlagsAndAttributes);
#ifdef IOWIN32_USING_WINRT_API
if ((filename != NULL) && (dwDesiredAccess != 0)) {
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
if ((filename != NULL) && (dwDesiredAccess != 0))
hFile = CreateFileA((LPCSTR)filename, dwDesiredAccess, dwShareMode, NULL, dwCreationDisposition, dwFlagsAndAttributes, NULL);
#endif
return win32_build_iowin(hFile);
}
voidpf ZCALLBACK win32_open64_file_funcW(voidpf opaque, const void* filename, int mode)
{
const char* mode_fopen = NULL;
DWORD dwDesiredAccess, dwCreationDisposition, dwShareMode, dwFlagsAndAttributes;
HANDLE hFile = NULL;
win32_translate_open_mode(mode, &dwDesiredAccess, &dwCreationDisposition, &dwShareMode, &dwFlagsAndAttributes);
#ifdef IOWIN32_USING_WINRT_API
if ((filename != NULL) && (dwDesiredAccess != 0))
hFile = CreateFile2((LPCWSTR)filename, dwDesiredAccess, dwShareMode, dwCreationDisposition, NULL);
#else
if ((filename != NULL) && (dwDesiredAccess != 0))
hFile = CreateFileW((LPCWSTR)filename, dwDesiredAccess, dwShareMode, NULL, dwCreationDisposition, dwFlagsAndAttributes, NULL);
#endif
return win32_build_iowin(hFile);
}
voidpf ZCALLBACK win32_open_file_func(voidpf opaque, const wchar_t* filename, int mode)
{
const char* mode_fopen = NULL;
DWORD dwDesiredAccess, dwCreationDisposition, dwShareMode, dwFlagsAndAttributes;
HANDLE hFile = NULL;
win32_translate_open_mode(mode, &dwDesiredAccess, &dwCreationDisposition, &dwShareMode, &dwFlagsAndAttributes);
#ifdef IOWIN32_USING_WINRT_API
#ifdef UNICODE
if ((filename != NULL) && (dwDesiredAccess != 0))
hFile = CreateFile2((LPCTSTR)filename, dwDesiredAccess, dwShareMode, dwCreationDisposition, NULL);
#else
if ((filename != NULL) && (dwDesiredAccess != 0)) {
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
if ((filename != NULL) && (dwDesiredAccess != 0))
hFile = CreateFile((LPCTSTR)filename, dwDesiredAccess, dwShareMode, NULL, dwCreationDisposition, dwFlagsAndAttributes, NULL);
#endif
return win32_build_iowin(hFile);
}
uLong ZCALLBACK win32_read_file_func(voidpf opaque, voidpf stream, void* buf, uLong size)
{
uLong 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 ret;
}
uLong ZCALLBACK win32_write_file_func(voidpf opaque, voidpf stream, const void* buf, uLong size)
{
uLong 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 ret;
}
static BOOL MySetFilePointerEx(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;
DWORD dwNewPos = SetFilePointer(hFile, pos.LowPart, &lHigh, FILE_CURRENT);
BOOL fOk = TRUE;
if (dwNewPos == 0xFFFFFFFF)
if (GetLastError() != NO_ERROR)
fOk = FALSE;
if ((newPos != NULL) && (fOk)) {
newPos->LowPart = dwNewPos;
newPos->HighPart = lHigh;
}
return fOk;
#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 (!MySetFilePointerEx(hFile, pos, &pos, FILE_CURRENT)) {
DWORD dwErr = GetLastError();
((WIN32FILE_IOWIN*)stream)->error = (int)dwErr;
ret = -1;
}
else
ret = (long)pos.LowPart;
}
return ret;
}
ZPOS64_T ZCALLBACK win32_tell64_file_func(voidpf opaque, voidpf stream)
{
ZPOS64_T ret = (ZPOS64_T)-1;
HANDLE hFile = NULL;
if (stream != NULL)
hFile = ((WIN32FILE_IOWIN*)stream)->hf;
if (hFile) {
LARGE_INTEGER pos;
pos.QuadPart = 0;
if (!MySetFilePointerEx(hFile, pos, &pos, FILE_CURRENT)) {
DWORD dwErr = GetLastError();
((WIN32FILE_IOWIN*)stream)->error = (int)dwErr;
ret = (ZPOS64_T)-1;
}
else
ret = pos.QuadPart;
}
return ret;
}
long ZCALLBACK win32_seek_file_func(voidpf opaque, voidpf stream, uLong 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 (!MySetFilePointerEx(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, ZPOS64_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 (!MySetFilePointerEx(hFile, pos, NULL, FILE_CURRENT)) {
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)
{
int ret = -1;
if (stream != NULL) {
HANDLE hFile;
hFile = ((WIN32FILE_IOWIN*)stream)->hf;
if (hFile != NULL) {
CloseHandle(hFile);
ret = 0;
}
free(stream);
}
return ret;
}
int ZCALLBACK win32_error_file_func(voidpf opaque, voidpf stream)
{
int ret = -1;
if (stream != NULL) {
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->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->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->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->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;
}
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