xref: /src/sys/arch/hpc/stand/hpcboot/hpcmenu.cpp

/* -*-C++-*-	$NetBSD: hpcmenu.cpp,v 1.3.2.1 2001/04/09 01:52:38 nathanw Exp $	*/

/*-
 * Copyright (c) 2001 The NetBSD Foundation, Inc.
 * All rights reserved.
 *
 * This code is derived from software contributed to The NetBSD Foundation
 * by UCHIYAMA Yasushi.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 * 3. All advertising materials mentioning features or use of this software
 *    must display the following acknowledgement:
 *        This product includes software developed by the NetBSD
 *        Foundation, Inc. and its contributors.
 * 4. Neither the name of The NetBSD Foundation nor the names of its
 *    contributors may be used to endorse or promote products derived
 *    from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 * POSSIBILITY OF SUCH DAMAGE.
 */

#include <hpcmenu.h>
#include <hpcboot.h>
#include <res/resource.h>
#include <menu/window.h>
#include <menu/tabwindow.h>
#include <menu/rootwindow.h>
#include <machine/bootinfo.h>
#include <framebuffer.h>
#include <console.h>

static BOOL _find_pref_dir(TCHAR *);
//
// Main window
//
class MainTabWindow : public TabWindow
{
private:
	HWND _edit_md_root;
	HWND _combobox_serial_speed;

	int _item_idx;
	void _insert_item(HWND w, TCHAR *name, int id) {
		int idx = SendDlgItemMessage(w, id, CB_ADDSTRING, 0,
					     reinterpret_cast <LPARAM>(name));
		if (idx != CB_ERR)
			SendDlgItemMessage(w, IDC_MAIN_DIR, CB_SETITEMDATA,
					   idx, _item_idx++);
	}

public:
	explicit MainTabWindow(TabWindowBase &base, int id)
		: TabWindow(base, id, TEXT("WMain")) {
		_item_idx = 0;
	}
	virtual ~MainTabWindow(void) { /* NO-OP */ }
	virtual void init(HWND w) {
		HpcMenuInterface &menu = HpcMenuInterface::Instance();
		struct HpcMenuInterface::HpcMenuPreferences
			*pref = &menu._pref;
		_window = w;
		// insert myself to tab-control
		TabWindow::init(w);

		// setup child.
		TCHAR *entry;
		int i;
		// kernel directory path
		for (i = 0; entry = menu.dir(i); i++)
			_insert_item(w, entry, IDC_MAIN_DIR);
		SendDlgItemMessage(w, IDC_MAIN_DIR, CB_SETCURSEL,
				   menu.dir_default(), 0);
		// platform
		for (i = 0; entry = menu.platform_get(i); i++)
			_insert_item(w, entry, IDC_MAIN_PLATFORM);
		SendDlgItemMessage(w, IDC_MAIN_PLATFORM, CB_SETCURSEL,
				   menu.platform_default(), 0);
		// kernel file name.
		Edit_SetText(GetDlgItem(w, IDC_MAIN_KERNEL),
			     pref->kernel_user ? pref->kernel_user_file :
			     TEXT("netbsd.gz"));

		// root file system.
		int fs = pref->rootfs + IDC_MAIN_ROOT_;
		_set_check(fs, TRUE);

		_edit_md_root = GetDlgItem(w, IDC_MAIN_ROOT_MD_OPS);
		Edit_SetText(_edit_md_root, pref->rootfs_file);
		EnableWindow(_edit_md_root, fs == IDC_MAIN_ROOT_MD
			     ? TRUE : FALSE);

		// kernel boot options.
		_set_check(IDC_MAIN_OPTION_A, pref->boot_ask_for_name);
		_set_check(IDC_MAIN_OPTION_S, pref->boot_single_user);
		_set_check(IDC_MAIN_OPTION_V, pref->boot_verbose);
		_set_check(IDC_MAIN_OPTION_H, pref->boot_serial);

		// serial console speed.
		TCHAR *speed_tab[] = { L"9600", L"19200", L"115200", 0 };
		int sel = 0;
		i = 0;
		for (TCHAR **speed = speed_tab; *speed; speed++, i++) {
			_insert_item(w, *speed, IDC_MAIN_OPTION_H_SPEED);
			if (_wtoi(*speed) == pref->serial_speed)
				sel = i;
		}
		_combobox_serial_speed = GetDlgItem(_window,
						    IDC_MAIN_OPTION_H_SPEED);
		SendDlgItemMessage(w, IDC_MAIN_OPTION_H_SPEED, CB_SETCURSEL,
				   sel, 0);
		EnableWindow(_combobox_serial_speed, pref->boot_serial);
	}

	void get(void) {
		HpcMenuInterface &menu = HpcMenuInterface::Instance();
		struct HpcMenuInterface::HpcMenuPreferences
			*pref = &menu._pref;

		HWND w = GetDlgItem(_window, IDC_MAIN_DIR);
		ComboBox_GetText(w, pref->dir_user_path, MAX_PATH);
		pref->dir_user = TRUE;
		w = GetDlgItem(_window, IDC_MAIN_KERNEL);
		Edit_GetText(w, pref->kernel_user_file, MAX_PATH);
		pref->kernel_user = TRUE;

		int i = ComboBox_GetCurSel(GetDlgItem(_window,
						      IDC_MAIN_PLATFORM));
		menu.platform_set(i);

		if (_is_checked(IDC_MAIN_ROOT_WD))
			pref->rootfs = 0;
		else if (_is_checked(IDC_MAIN_ROOT_SD))
			pref->rootfs = 1;
		else if (_is_checked(IDC_MAIN_ROOT_MD))
			pref->rootfs = 2;
		else if (_is_checked(IDC_MAIN_ROOT_NFS))
			pref->rootfs = 3;

		pref->boot_ask_for_name	= _is_checked(IDC_MAIN_OPTION_A);
		pref->boot_verbose	= _is_checked(IDC_MAIN_OPTION_V);
		pref->boot_single_user	= _is_checked(IDC_MAIN_OPTION_S);
		pref->boot_serial	= _is_checked(IDC_MAIN_OPTION_H);
		Edit_GetText(_edit_md_root, pref->rootfs_file, MAX_PATH);

		TCHAR tmpbuf[8];
		ComboBox_GetText(_combobox_serial_speed, tmpbuf, 8);
		pref->serial_speed = _wtoi(tmpbuf);
	}

	virtual void command(int id, int msg) {
		switch (id) {
		case IDC_MAIN_OPTION_H:
			EnableWindow(_combobox_serial_speed,
				     _is_checked(IDC_MAIN_OPTION_H));
			break;
		case IDC_MAIN_ROOT_WD:
			/* FALLTHROUGH */
		case IDC_MAIN_ROOT_SD:
			/* FALLTHROUGH */
		case IDC_MAIN_ROOT_MD:
			/* FALLTHROUGH */
		case IDC_MAIN_ROOT_NFS:
			EnableWindow(_edit_md_root,
				     _is_checked(IDC_MAIN_ROOT_MD));
		}
	}
};

//
// Option window
//
class OptionTabWindow : public TabWindow
{
public:
	HWND _spin_edit;
	HWND _spin;
#define IS_CHECKED(x)	_is_checked(IDC_OPT_##x)
#define SET_CHECK(x, b)	_set_check(IDC_OPT_##x,(b))

public:
	explicit OptionTabWindow(TabWindowBase &base, int id)
		: TabWindow(base, id, TEXT("WOption")) {
		_spin_edit = NULL;
		_spin = NULL;
	}
	virtual ~OptionTabWindow(void) { /* NO-OP */ }
	virtual void init(HWND w) {
		HpcMenuInterface &menu = HpcMenuInterface::Instance();
		struct HpcMenuInterface::HpcMenuPreferences
			*pref = &menu._pref;
		_window = w;

		TabWindow::init(_window);
		_spin_edit = GetDlgItem(_window, IDC_OPT_AUTO_INPUT);
		_spin = CreateUpDownControl(WS_CHILD | WS_BORDER | WS_VISIBLE |
					    UDS_SETBUDDYINT | UDS_ALIGNRIGHT,
					    80, 0, 50, 50, _window,
					    IDC_OPT_AUTO_UPDOWN,
					    _app._instance, _spin_edit,
					    60, 1, 30);
		BOOL onoff = pref->auto_boot ? TRUE : FALSE;
		EnableWindow(_spin_edit, onoff);
		EnableWindow(_spin, onoff);

		SET_CHECK(AUTO, pref->auto_boot);
		if (pref->auto_boot)
		{
			TCHAR tmp[32];
			wsprintf(tmp, TEXT("%d"), pref->auto_boot);
			Edit_SetText(_spin_edit, tmp);
		}
		SET_CHECK(VIDEO,	pref->reverse_video);
		SET_CHECK(PAUSE,	pref->pause_before_boot);
		SET_CHECK(DEBUG,	pref->load_debug_info);
		SET_CHECK(SAFETY,	pref->safety_message);
	}

	virtual void command(int id, int msg) {
		switch (id) {
		case IDC_OPT_AUTO:
			if (IS_CHECKED(AUTO)) {
				EnableWindow(_spin_edit, TRUE);
				EnableWindow(_spin, TRUE);
			} else {
				EnableWindow(_spin_edit, FALSE);
				EnableWindow(_spin, FALSE);
			}
			break;
		}
	}

	void get(void) {
		HpcMenuInterface &menu = HpcMenuInterface::Instance();
		struct HpcMenuInterface::HpcMenuPreferences
			*pref = &menu._pref;
		if (IS_CHECKED(AUTO)) {
			TCHAR tmp[32];
			Edit_GetText(_spin_edit, tmp, 32);
			pref->auto_boot = _wtoi(tmp);
		} else
			pref->auto_boot = 0;
		pref->reverse_video		= IS_CHECKED(VIDEO);
		pref->pause_before_boot	= IS_CHECKED(PAUSE);
		pref->load_debug_info	= IS_CHECKED(DEBUG);
		pref->safety_message	= IS_CHECKED(SAFETY);
	}
};

//
// Console window
//
class ConsoleTabWindow : public TabWindow
{
private:
	HWND _filename_edit;
	BOOL _filesave;
	HANDLE _logfile;
	BOOL _open_log_file(void);
public:
	HWND _edit;

public:
	explicit ConsoleTabWindow(TabWindowBase &base, int id)
		: TabWindow(base, id, TEXT("WConsole")) {
		_edit = NULL;
		_logfile = INVALID_HANDLE_VALUE;
	}
	virtual ~ConsoleTabWindow(void) {
		if (_logfile != INVALID_HANDLE_VALUE)
			CloseHandle(_logfile);
	}
	virtual void init(HWND);
	virtual void command(int, int);

	void print(TCHAR *buf, BOOL = FALSE);
};

void
ConsoleTabWindow::print(TCHAR *buf, BOOL force_display)
{
	int cr;
	TCHAR *p;

	if (force_display)
		goto display;

	if (_filesave) {
		if (_logfile == INVALID_HANDLE_VALUE && !_open_log_file()) {
			_filesave = FALSE;
			_set_check(IDC_CONS_FILESAVE, _filesave);
			EnableWindow(_filename_edit, _filesave);
			goto display;
		}
		DWORD cnt;
		char c;
		for (int i = 0; *buf != TEXT('\0'); buf++) {
			c = *buf & 0x7f;
			WriteFile(_logfile, &c, 1, &cnt, 0);
		}
		FlushFileBuffers(_logfile);
		return;
	}

 display:
	// count # of '\n'
	for (cr = 0, p = buf; p = wcschr(p, TEXT('\n')); cr++, p++)
		;
	// total length of new buffer('\n' -> "\r\n" + '\0')
	int ln = wcslen(buf) + cr + 1;

	// get old buffer.
	int lo = Edit_GetTextLength(_edit);
	size_t sz =(lo  + ln) * sizeof(TCHAR);

	p = reinterpret_cast <TCHAR *>(malloc(sz));
	if (p == NULL)
		return;

	memset(p, 0, sz);
	Edit_GetText(_edit, p, lo + 1);

	// put new buffer to end of old buffer.
	TCHAR *d = p + lo;
	while (*buf != TEXT('\0')) {
		TCHAR c = *buf++;
		if (c == TEXT('\n'))
			*d++ = TEXT('\r');
		*d++ = c;
	}
	*d = TEXT('\0');

	// display total buffer.
	Edit_SetText(_edit, p);
//  Edit_Scroll(_edit, Edit_GetLineCount(_edit), 0);
	UpdateWindow(_edit);

	free(p);
}

void
ConsoleTabWindow::init(HWND w)
{
	// at this time _window is NULL.
	// use argument of window procedure.
	TabWindow::init(w);
	_edit = GetDlgItem(w, IDC_CONS_EDIT);
	MoveWindow(_edit, 5, 60, _rect.right - _rect.left - 10,
		   _rect.bottom - _rect.top - 60, TRUE);
	Edit_FmtLines(_edit, TRUE);

	// log file.
	_filename_edit = GetDlgItem(w, IDC_CONS_FILENAME);
	_filesave = FALSE;
	Edit_SetText(_filename_edit, L"bootlog.txt");
	EnableWindow(_filename_edit, _filesave);
}

void
ConsoleTabWindow::command(int id, int msg)
{
	HpcMenuInterface &menu = HpcMenuInterface::Instance();
	struct HpcMenuInterface::cons_hook_args *hook = 0;
	int bit;

	switch(id) {
	case IDC_CONS_FILESAVE:
		_filesave = _is_checked(IDC_CONS_FILESAVE);
		EnableWindow(_filename_edit, _filesave);
		break;
	case IDC_CONS_CHK0:
		/* FALLTHROUGH */
	case IDC_CONS_CHK1:
		/* FALLTHROUGH */
	case IDC_CONS_CHK2:
		/* FALLTHROUGH */
	case IDC_CONS_CHK3:
		/* FALLTHROUGH */
	case IDC_CONS_CHK4:
		/* FALLTHROUGH */
	case IDC_CONS_CHK5:
		/* FALLTHROUGH */
	case IDC_CONS_CHK6:
		/* FALLTHROUGH */
	case IDC_CONS_CHK7:
		bit = 1 << (id - IDC_CONS_CHK_);
		if (SendDlgItemMessage(_window, id, BM_GETCHECK, 0, 0))
			menu._cons_parameter |= bit;
		else
			menu._cons_parameter &= ~bit;
		break;
	case IDC_CONS_BTN0:
		/* FALLTHROUGH */
	case IDC_CONS_BTN1:
		/* FALLTHROUGH */
	case IDC_CONS_BTN2:
		/* FALLTHROUGH */
	case IDC_CONS_BTN3:
		hook = &menu._cons_hook[id - IDC_CONS_BTN_];
		if (hook->func)
			hook->func(hook->arg, menu._cons_parameter);

		break;
	}
}

BOOL
ConsoleTabWindow::_open_log_file()
{
	TCHAR path[MAX_PATH];
	TCHAR filename[MAX_PATH];
	TCHAR filepath[MAX_PATH];

	if (!_find_pref_dir(path)) {
		print(L"couldn't find temporary directory.\n", TRUE);
		return FALSE;
	}

	Edit_GetText(_filename_edit, filename, MAX_PATH);
	wsprintf(filepath, TEXT("\\%s\\%s"), path, filename);
	_logfile = CreateFile(filepath, GENERIC_WRITE, 0, 0,
			      CREATE_ALWAYS, FILE_ATTRIBUTE_NORMAL,
			      0);
	if (_logfile == INVALID_HANDLE_VALUE)
		return FALSE;

	wsprintf(path, TEXT("log file is %s\n"), filepath);
	print(path, TRUE);

	return TRUE;
}

TabWindow *
TabWindowBase::boot(int id)
{
	TabWindow *w = NULL;
	HpcMenuInterface &menu = HpcMenuInterface::Instance();

	switch(id) {
	default:
		break;
	case IDC_BASE_MAIN:
		menu._main = new MainTabWindow(*this, IDC_BASE_MAIN);
		w = menu._main;
		break;
	case IDC_BASE_OPTION:
		menu._option = new OptionTabWindow(*this, IDC_BASE_OPTION);
		w = menu._option;
		break;
	case IDC_BASE_CONSOLE:
		menu._console = new ConsoleTabWindow(*this, IDC_BASE_CONSOLE);
		w = menu._console;
		break;
	}

	if (w)
		w->create(0);

	return w;
}

//
// External Interface
//
HpcMenuInterface *HpcMenuInterface::_instance = 0;

HpcMenuInterface &
HpcMenuInterface::Instance()
{
	if (!_instance)
		_instance = new HpcMenuInterface();
	return *_instance;
}

void
HpcMenuInterface::Destroy()
{
	if (_instance)
		delete _instance;
}

void
HpcMenuInterface::print(TCHAR *buf)
{
	if (_console)
		_console->print(buf);
}

void
HpcMenuInterface::get_options()
{
	_main->get();
	_option->get();
}

TCHAR *
HpcMenuInterface::dir(int i)
{
	int res = IDS_DIR_RES(i);
	if (!IDS_DIR_RES_VALID(res))
		return 0;

	if (_pref.dir_user && res == IDS_DIR_USER_DEFINED) {
		return _pref.dir_user_path;
	}

	TCHAR *s = reinterpret_cast <TCHAR *>
		(LoadString(_root->_app._instance, res, 0, 0));

	return s;
}

int
HpcMenuInterface::dir_default()
{
	return _pref.dir_user ? IDS_DIR_SEQ(IDS_DIR_USER_DEFINED) : 0;
}

BOOL
HpcMenuInterface::load()
{
	TCHAR path[MAX_PATH];

	if (!_find_pref_dir(path))
		return FALSE;

	TCHAR filename[MAX_PATH];
	wsprintf(filename, TEXT("\\%s\\hpcboot.cnf"), path);
	HANDLE file = CreateFile(filename, GENERIC_READ, 0, 0, OPEN_EXISTING,
				 FILE_ATTRIBUTE_NORMAL, 0);
	if (file == INVALID_HANDLE_VALUE)
		return FALSE;

	DWORD cnt;
	// read header.
	if (!ReadFile(file, &_pref, 12, &cnt, 0))
		goto bad;
	if (_pref._magic != HPCBOOT_MAGIC)
		goto bad;
	// read all.
	SetFilePointer(file, 0, 0, FILE_BEGIN);
	if (!ReadFile(file, &_pref, _pref._size, &cnt, 0))
		goto bad;
	CloseHandle(file);

	return TRUE;
 bad:
	CloseHandle(file);
	return FALSE;
}

BOOL
HpcMenuInterface::save()
{
	TCHAR path[MAX_PATH];

	if (_find_pref_dir(path)) {
		TCHAR filename[MAX_PATH];
		wsprintf(filename, TEXT("\\%s\\hpcboot.cnf"), path);
		HANDLE file = CreateFile(filename, GENERIC_WRITE, 0, 0,
					 CREATE_ALWAYS, FILE_ATTRIBUTE_NORMAL,
					 0);
		DWORD cnt;
		WriteFile(file, &_pref, _pref._size, &cnt, 0);
		CloseHandle(file);
		return cnt == _pref._size;
	}

	return FALSE;
}

// arguments for kernel.
int
HpcMenuInterface::setup_kernel_args(vaddr_t v, paddr_t p)
{
	int argc = 0;
	kaddr_t *argv = reinterpret_cast <kaddr_t *>(v);
	char *loc = reinterpret_cast <char *>
		(v + sizeof(char **) * MAX_KERNEL_ARGS);
	paddr_t locp = p + sizeof(char **) * MAX_KERNEL_ARGS;
	size_t len;
	TCHAR *w;

#define SETOPT(c)							\
__BEGIN_MACRO								\
	argv[argc++] = ptokv(locp);					\
	*loc++ =(c);							\
	*loc++ = '\0';							\
	locp += 2;							\
__END_MACRO
	// 1st arg is kernel name.
//	DPRINTF_SETUP();  if you want to use debug print, enable this line.

	w = _pref.kernel_user_file;
	argv[argc++] = ptokv(locp);
	len = WideCharToMultiByte(CP_ACP, 0, w, wcslen(w), 0, 0, 0, 0);
	WideCharToMultiByte(CP_ACP, 0, w, len, loc, len, 0, 0);
	loc[len] = '\0';
	loc += len + 1;
	locp += len + 1;

	if (_pref.boot_serial)		// serial console
		SETOPT('h');
	if (_pref.boot_verbose)		// boot verbosely
		SETOPT('v');
	if (_pref.boot_single_user)	// boot to single user
		SETOPT('s');
	if (_pref.boot_ask_for_name)	// ask for file name to boot from
		SETOPT('a');

	// boot from
	switch(_pref.rootfs) {
	case 0:	// wd0
		break;
	case 1:	// sd0
		argv[argc++] = ptokv(locp);
		strncpy(loc, "b=sd0", 6);
		loc += 6;
		locp += 6;
		break;
	case 2:	// memory disk
		w = _pref.rootfs_file;
		argv[argc++] = ptokv(locp);
		strncpy(loc, "m=", 2);
		loc += 2;
		len = WideCharToMultiByte(CP_ACP, 0, w, wcslen(w), 0, 0, 0, 0);
		WideCharToMultiByte(CP_ACP, 0, w, len, loc, len, 0, 0);
		loc[len] = '\0';
		loc += len + 1;
		locp += 2 + len + 1;
		break;
	case 3:	// nfs
		argv[argc++] = ptokv(locp);
		strncpy(loc, "b=nfs", 6);
		loc += 6;
		locp += 6;
		break;
	}

	return argc;
}

// kernel bootinfo.
void
HpcMenuInterface::setup_bootinfo(struct bootinfo &bi)
{
	FrameBufferInfo fb(_pref.platid_hi, _pref.platid_lo);
	TIME_ZONE_INFORMATION tz;
	GetTimeZoneInformation(&tz);

	memset(&bi, 0, sizeof(struct bootinfo));
	bi.length		= sizeof(struct bootinfo);
	bi.reserved		= 0;
	bi.magic		= BOOTINFO_MAGIC;
	bi.fb_addr		= fb.addr();
	bi.fb_type		= fb.type();
	bi.fb_line_bytes	= fb.linebytes();
	bi.fb_width		= fb.width();
	bi.fb_height		= fb.height();
	bi.platid_cpu		= _pref.platid_hi;
	bi.platid_machine	= _pref.platid_lo;
	bi.timezone		= tz.Bias;
}

// Progress bar
void
HpcMenuInterface::progress()
{
	SendMessage(_root->_progress_bar->_window, PBM_STEPIT, 0, 0);
}

void
HpcMenuInterface::boot()
{
	struct support_status *tab = _unsupported;
	u_int32_t cpu = _pref.platid_hi;
	u_int32_t machine = _pref.platid_lo;

	if (_pref.safety_message)
		for (; tab->cpu; tab++) {
			if (tab->cpu == cpu && tab->machine == machine) {
				MessageBox(_root->_window,
					   tab->cause ? tab->cause :
					   L"not supported yet.",
					   TEXT("BOOT FAILED"), 0);
				return;
			}
		}

	if (_boot_hook.func)
		_boot_hook.func(_boot_hook.arg, _pref);
}

//
// Common utility
//
static BOOL
_find_pref_dir(TCHAR *path)
{
	WIN32_FIND_DATA fd;
	HANDLE find;

	lstrcpy(path, TEXT("\\*.*"));
	find = FindFirstFile(path, &fd);

	if (find != INVALID_HANDLE_VALUE) {
		do {
			int attr = fd.dwFileAttributes;
			if ((attr & FILE_ATTRIBUTE_DIRECTORY) &&
			    (attr & FILE_ATTRIBUTE_TEMPORARY)) {
				wcscpy(path, fd.cFileName);
				FindClose(find);
				return TRUE;
			}
		} while (FindNextFile(find, &fd));
	}
	FindClose(find);

	return FALSE;
}