1

/* $Id$ */

     2

     3

/** @file win32.cpp Implementation of MS Windows system calls */

     4

     5

#include "stdafx.h"

     6

#include "hal.h"

     7

#include "openttd.h"

     8

#include "debug.h"

     9

#include "functions.h"

    10

#include "macros.h"

    11

#include "helpers.hpp"

    12

#include "saveload.h"

    13

#include "string.h"

    14

#include "gfx.h"

    15

#include "window.h"

    16

#include <windows.h>

    17

#include <winnt.h>

    18

#include <wininet.h>

    19

#include <io.h>

    20

#include <fcntl.h>

    21

#include <shlobj.h> // SHGetFolderPath

    22

#include "variables.h"

    23

#include "win32.h"

    24

#include "fios.h" // opendir/readdir/closedir

    25

#include <ctype.h>

    26

#include <tchar.h>

    27

#include <errno.h>

    28

#include <sys/types.h>

    29

#include <sys/stat.h>

    30

    31

static bool _has_console;

    32

    33

#if defined(__MINGW32__)

    34

	#include <stdint.h>

    35

#endif

    36

    37

static bool cursor_visible = true;

    38

    39

bool MyShowCursor(bool show)

    40

{

    41

	if (cursor_visible == show) return show;

    42

    43

	cursor_visible = show;

    44

	ShowCursor(show);

    45

    46

	return !show;

    47

}

    48

    49

/** Helper function needed by dynamically loading libraries

    50

 * XXX: Hurray for MS only having an ANSI GetProcAddress function

    51

 * on normal windows and no Wide version except for in Windows Mobile/CE */

    52

bool LoadLibraryList(Function proc[], const char *dll)

    53

{

    54

	while (*dll != '\0') {

    55

		HMODULE lib;

    56

		lib = LoadLibrary(MB_TO_WIDE(dll));

    57

    58

		if (lib == NULL) return false;

    59

		for (;;) {

    60

			FARPROC p;

    61

    62

			while (*dll++ != '\0');

    63

			if (*dll == '\0') break;

    64

#if defined(WINCE)

    65

			p = GetProcAddress(lib, MB_TO_WIDE(dll));

    66

#else

    67

			p = GetProcAddress(lib, dll);

    68

#endif

    69

			if (p == NULL) return false;

    70

			*proc++ = (Function)p;

    71

		}

    72

		dll++;

    73

	}

    74

	return true;

    75

}

    76

    77

#ifdef _MSC_VER

    78

static const char *_exception_string = NULL;

    79

#endif

    80

    81

void ShowOSErrorBox(const char *buf)

    82

{

    83

	MyShowCursor(true);

    84

	MessageBox(GetActiveWindow(), MB_TO_WIDE(buf), _T("Error!"), MB_ICONSTOP);

    85

    86

// if exception tracker is enabled, we crash here to let the exception handler handle it.

    87

#if defined(WIN32_EXCEPTION_TRACKER) && !defined(_DEBUG)

    88

	if (*buf == '!') {

    89

		_exception_string = buf;

    90

		*(byte*)0 = 0;

    91

	}

    92

#endif

    93

}

    94

    95

#ifdef _MSC_VER

    96

    97

static void *_safe_esp;

    98

static char *_crash_msg;

    99

static bool _expanded;

   100

static bool _did_emerg_save;

   101

static int _ident;

   102

   104

	uint32 size;

   105

	uint32 crc32;

   106

	SYSTEMTIME file_time;

   108

   109

static uint32 *_crc_table;

   110

   111

static void MakeCRCTable(uint32 *table) {

   112

	uint32 crc, poly = 0xEDB88320L;

   113

	int i;

   114

	int j;

   115

   116

	_crc_table = table;

   117

   118

	for (i = 0; i != 256; i++) {

   119

		crc = i;

   120

		for (j = 8; j != 0; j--) {

   121

			crc = (crc & 1 ? (crc >> 1) ^ poly : crc >> 1);

   122

		}

   123

		table[i] = crc;

   124

	}

   125

}

   126

   127

static uint32 CalcCRC(byte *data, uint size, uint32 crc) {

   128

	for (; size > 0; size--) {

   129

		crc = ((crc >> 8) & 0x00FFFFFF) ^ _crc_table[(crc ^ *data++) & 0xFF];

   130

	}

   131

	return crc;

   132

}

   133

   134

static void GetFileInfo(DebugFileInfo *dfi, const TCHAR *filename)

   135

{

   136

	HANDLE file;

   137

	memset(dfi, 0, sizeof(dfi));

   138

   139

	file = CreateFile(filename, GENERIC_READ, FILE_SHARE_READ, NULL, OPEN_EXISTING, 0, 0);

   140

	if (file != INVALID_HANDLE_VALUE) {

   141

		byte buffer[1024];

   142

		DWORD numread;

   143

		uint32 filesize = 0;

   144

		FILETIME write_time;

   145

		uint32 crc = (uint32)-1;

   146

   147

		for (;;) {

   148

			if (ReadFile(file, buffer, sizeof(buffer), &numread, NULL) == 0 || numread == 0)

   149

				break;

   150

			filesize += numread;

   151

			crc = CalcCRC(buffer, numread, crc);

   152

		}

   153

		dfi->size = filesize;

   154

		dfi->crc32 = crc ^ (uint32)-1;

   155

   156

		if (GetFileTime(file, NULL, NULL, &write_time)) {

   157

			FileTimeToSystemTime(&write_time, &dfi->file_time);

   158

		}

   159

		CloseHandle(file);

   160

	}

   161

}

   162

   163

   164

static char *PrintModuleInfo(char *output, HMODULE mod)

   165

{

   166

	TCHAR buffer[MAX_PATH];

   167

	DebugFileInfo dfi;

   168

   169

	GetModuleFileName(mod, buffer, MAX_PATH);

   170

	GetFileInfo(&dfi, buffer);

   171

	output += sprintf(output, " %-20s handle: %p size: %d crc: %.8X date: %d-%.2d-%.2d %.2d:%.2d:%.2d\r\n",

   172

		WIDE_TO_MB(buffer),

   173

		mod,

   174

		dfi.size,

   175

		dfi.crc32,

   176

		dfi.file_time.wYear,

   177

		dfi.file_time.wMonth,

   178

		dfi.file_time.wDay,

   179

		dfi.file_time.wHour,

   180

		dfi.file_time.wMinute,

   181

		dfi.file_time.wSecond

   182

	);

   183

	return output;

   184

}

   185

   186

static char *PrintModuleList(char *output)

   187

{

   188

	BOOL (WINAPI *EnumProcessModules)(HANDLE, HMODULE*, DWORD, LPDWORD);

   189

   190

	if (LoadLibraryList((Function*)&EnumProcessModules, "psapi.dll\0EnumProcessModules\0\0")) {

   191

		HMODULE modules[100];

   192

		DWORD needed;

   193

		BOOL res;

   194

		int count, i;

   195

   196

		HANDLE proc = OpenProcess(PROCESS_ALL_ACCESS, FALSE, GetCurrentProcessId());

   197

		if (proc != NULL) {

   198

			res = EnumProcessModules(proc, modules, sizeof(modules), &needed);

   199

			CloseHandle(proc);

   200

			if (res) {

   201

				count = min(needed / sizeof(HMODULE), lengthof(modules));

   202

   203

				for (i = 0; i != count; i++) output = PrintModuleInfo(output, modules[i]);

   204

				return output;

   205

			}

   206

		}

   207

	}

   208

	output = PrintModuleInfo(output, NULL);

   209

	return output;

   210

}

   211

   212

static const TCHAR _crash_desc[] =

   213

	_T("A serious fault condition occured in the game. The game will shut down.\n")

   214

	_T("Please send the crash information and the crash.dmp file (if any) to the developers.\n")

   215

	_T("This will greatly help debugging. The correct place to do this is http://bugs.openttd.org. ")

   216

	_T("The information contained in the report is displayed below.\n")

   217

	_T("Press \"Emergency save\" to attempt saving the game.");

   218

   219

static const TCHAR _save_succeeded[] =

   220

	_T("Emergency save succeeded.\n")

   221

	_T("Be aware that critical parts of the internal game state may have become ")

   222

	_T("corrupted. The saved game is not guaranteed to work.");

   223

   224

static bool EmergencySave()

   225

{

   226

	SaveOrLoad("crash.sav", SL_SAVE);

   227

	return true;

   228

}

   229

   230

/* Disable the crash-save submit code as it's not used */

   231

#if 0

   232

   234

	HINTERNET (WINAPI *InternetOpen)(LPCTSTR,DWORD, LPCTSTR, LPCTSTR, DWORD);

   235

	HINTERNET (WINAPI *InternetConnect)(HINTERNET, LPCTSTR, INTERNET_PORT, LPCTSTR, LPCTSTR, DWORD, DWORD, DWORD);

   236

	HINTERNET (WINAPI *HttpOpenRequest)(HINTERNET, LPCTSTR, LPCTSTR, LPCTSTR, LPCTSTR, LPCTSTR *, DWORD, DWORD);

   237

	BOOL (WINAPI *HttpSendRequest)(HINTERNET, LPCTSTR, DWORD, LPVOID, DWORD);

   238

	BOOL (WINAPI *InternetCloseHandle)(HINTERNET);

   239

	BOOL (WINAPI *HttpQueryInfo)(HINTERNET, DWORD, LPVOID, LPDWORD, LPDWORD);

   241

   242

#define M(x) x "\0"

   243

#if defined(UNICODE)

   244

# define W(x) x "W"

   245

#else

   246

# define W(x) x "A"

   247

#endif

   248

static const char wininet_files[] =

   249

	M("wininet.dll")

   250

	M(W("InternetOpen"))

   251

	M(W("InternetConnect"))

   252

	M(W("HttpOpenRequest"))

   253

	M(W("HttpSendRequest"))

   254

	M("InternetCloseHandle")

   255

	M(W("HttpQueryInfo"))

   256

	M("");

   257

#undef W

   258

#undef M

   259

   260

static WinInetProcs _wininet;

   261

   262

static const TCHAR *SubmitCrashReport(HWND wnd, void *msg, size_t msglen, const TCHAR *arg)

   263

{

   264

	HINTERNET inet, conn, http;

   265

	const TCHAR *err = NULL;

   266

	DWORD code, len;

   267

	static TCHAR buf[100];

   268

	TCHAR buff[100];

   269

   270

	if (_wininet.InternetOpen == NULL && !LoadLibraryList((Function*)&_wininet, wininet_files)) return _T("can't load wininet.dll");

   271

   272

	inet = _wininet.InternetOpen(_T("OTTD"), INTERNET_OPEN_TYPE_PRECONFIG, NULL, NULL, 0 );

   273

	if (inet == NULL) { err = _T("internetopen failed"); goto error1; }

   274

   275

	conn = _wininet.InternetConnect(inet, _T("www.openttd.org"), INTERNET_DEFAULT_HTTP_PORT, _T(""), _T(""), INTERNET_SERVICE_HTTP, 0, 0);

   276

	if (conn == NULL) { err = _T("internetconnect failed"); goto error2; }

   277

   278

	_sntprintf(buff, lengthof(buff), _T("/crash.php?file=%s&ident=%d"), arg, _ident);

   279

   280

	http = _wininet.HttpOpenRequest(conn, _T("POST"), buff, NULL, NULL, NULL, INTERNET_FLAG_NO_CACHE_WRITE , 0);

   281

	if (http == NULL) { err = _T("httpopenrequest failed"); goto error3; }

   282

   283

	if (!_wininet.HttpSendRequest(http, _T("Content-type: application/binary"), -1, msg, (DWORD)msglen)) { err = _T("httpsendrequest failed"); goto error4; }

   284

   285

	len = sizeof(code);

   286

	if (!_wininet.HttpQueryInfo(http, HTTP_QUERY_STATUS_CODE | HTTP_QUERY_FLAG_NUMBER, &code, &len, 0)) { err = _T("httpqueryinfo failed"); goto error4; }

   287

   288

	if (code != 200) {

   289

		int l = _sntprintf(buf, lengthof(buf), _T("Server said: %d "), code);

   290

		len = sizeof(buf) - l;

   291

		_wininet.HttpQueryInfo(http, HTTP_QUERY_STATUS_TEXT, buf + l, &len, 0);

   292

		err = buf;

   293

	}

   294

   295

error4:

   296

	_wininet.InternetCloseHandle(http);

   297

error3:

   298

	_wininet.InternetCloseHandle(conn);

   299

error2:

   300

	_wininet.InternetCloseHandle(inet);

   301

error1:

   302

	return err;

   303

}

   304

   305

static void SubmitFile(HWND wnd, const TCHAR *file)

   306

{

   307

	HANDLE h;

   308

	unsigned long size;

   309

	unsigned long read;

   310

	void *mem;

   311

   312

	h = CreateFile(file, GENERIC_READ, FILE_SHARE_READ, NULL, OPEN_EXISTING, 0, NULL);

   313

	if (h == NULL) return;

   314

   315

	size = GetFileSize(h, NULL);

   316

	if (size > 500000) goto error1;

   317

   318

	mem = malloc(size);

   319

	if (mem == NULL) goto error1;

   320

   321

	if (!ReadFile(h, mem, size, &read, NULL) || read != size) goto error2;

   322

   323

	SubmitCrashReport(wnd, mem, size, file);

   324

   325

error2:

   326

	free(mem);

   327

error1:

   328

	CloseHandle(h);

   329

}

   330

   331

#endif /* Disabled crash-submit procedures */

   332

   333

static const TCHAR * const _expand_texts[] = {_T("S&how report >>"), _T("&Hide report <<") };

   334

   335

static void SetWndSize(HWND wnd, int mode)

   336

{

   337

	RECT r,r2;

   338

	int offs;

   339

   340

	GetWindowRect(wnd, &r);

   341

   342

	SetDlgItemText(wnd, 15, _expand_texts[mode == 1]);

   343

   344

	if (mode >= 0) {

   345

		GetWindowRect(GetDlgItem(wnd, 11), &r2);

   346

		offs = r2.bottom - r2.top + 10;

   347

		if (!mode) offs = -offs;

   348

		SetWindowPos(wnd, HWND_TOPMOST, 0, 0,

   349

			r.right - r.left, r.bottom - r.top + offs, SWP_NOMOVE | SWP_NOZORDER);

   350

	} else {

   351

		SetWindowPos(wnd, HWND_TOPMOST,

   352

			(GetSystemMetrics(SM_CXSCREEN) - (r.right - r.left)) / 2,

   353

			(GetSystemMetrics(SM_CYSCREEN) - (r.bottom - r.top)) / 2,

   354

			0, 0, SWP_NOSIZE);

   355

	}

   356

}

   357

   358

static bool DoEmergencySave(HWND wnd)

   359

{

   360

	bool b = false;

   361

   362

	EnableWindow(GetDlgItem(wnd, 13), FALSE);

   363

	_did_emerg_save = true;

   364

	__try {

   365

		b = EmergencySave();

   366

	} __except (1) {}

   367

	return b;

   368

}

   369

   370

static INT_PTR CALLBACK CrashDialogFunc(HWND wnd,UINT msg,WPARAM wParam,LPARAM lParam)

   371

{

   372

	switch (msg) {

   373

		case WM_INITDIALOG: {

   374

#if defined(UNICODE)

   375

			/* We need to put the crash-log in a seperate buffer because the default

   376

			 * buffer in MB_TO_WIDE is not large enough (512 chars) */

   377

			wchar_t crash_msgW[8096];

   378

#endif

   379

			SetDlgItemText(wnd, 10, _crash_desc);

   380

			SetDlgItemText(wnd, 11, MB_TO_WIDE_BUFFER(_crash_msg, crash_msgW, lengthof(crash_msgW)));

   381

			SendDlgItemMessage(wnd, 11, WM_SETFONT, (WPARAM)GetStockObject(ANSI_FIXED_FONT), FALSE);

   382

			SetWndSize(wnd, -1);

   383

		} return TRUE;

   384

		case WM_COMMAND:

   385

			switch (wParam) {

   386

				case 12: /* Close */

   387

					ExitProcess(0);

   388

				case 13: /* Emergency save */

   389

					if (DoEmergencySave(wnd)) {

   390

						MessageBox(wnd, _save_succeeded, _T("Save successful"), MB_ICONINFORMATION);

   391

					} else {

   392

						MessageBox(wnd, _T("Save failed"), _T("Save failed"), MB_ICONINFORMATION);

   393

					}

   394

					break;

   395

/* Disable the crash-save submit code as it's not used */

   396

#if 0

   397

				case 14: { /* Submit crash report */

   398

					const TCHAR *s;

   399

   400

					SetCursor(LoadCursor(NULL, IDC_WAIT));

   401

   402

					s = SubmitCrashReport(wnd, _crash_msg, strlen(_crash_msg), _T(""));

   403

					if (s != NULL) {

   404

						MessageBox(wnd, s, _T("Error"), MB_ICONSTOP);

   405

						break;

   406

					}

   407

   408

					// try to submit emergency savegame

   409

					if (_did_emerg_save || DoEmergencySave(wnd)) SubmitFile(wnd, _T("crash.sav"));

   410

   411

					// try to submit the autosaved game

   412

					if (_opt.autosave) {

   413

						TCHAR buf[40];

   414

						_sntprintf(buf, lengthof(buf), _T("autosave%d.sav"), (_autosave_ctr - 1) & 3);

   415

						SubmitFile(wnd, buf);

   416

					}

   417

					EnableWindow(GetDlgItem(wnd, 14), FALSE);

   418

					SetCursor(LoadCursor(NULL, IDC_ARROW));

   419

					MessageBox(wnd, _T("Crash report submitted. Thank you."), _T("Crash Report"), MB_ICONINFORMATION);

   420

				}	break;

   421

#endif /* Disabled crash-submit procedures */

   422

				case 15: /* Expand window to show crash-message */

   423

					_expanded ^= 1;

   424

					SetWndSize(wnd, _expanded);

   425

					break;

   426

			}

   427

			return TRUE;

   428

		case WM_CLOSE: ExitProcess(0);

   429

	}

   430

   431

	return FALSE;

   432

}

   433

   434

static void Handler2()

   435

{

   436

	ShowCursor(TRUE);

   437

	ShowWindow(GetActiveWindow(), FALSE);

   438

	DialogBox(GetModuleHandle(NULL), MAKEINTRESOURCE(100), NULL, CrashDialogFunc);

   439

}

   440

   441

extern bool CloseConsoleLogIfActive();

   442

   443

static LONG WINAPI ExceptionHandler(EXCEPTION_POINTERS *ep)

   444

{

   445

	extern const char _openttd_revision[];

   446

	char *output;

   447

	static bool had_exception = false;

   448

   449

	if (had_exception) ExitProcess(0);

   450

	had_exception = true;

   451

   452

	_ident = GetTickCount(); // something pretty unique

   453

   454

	MakeCRCTable((uint32*)alloca(256 * sizeof(uint32)));

   455

	_crash_msg = output = (char*)LocalAlloc(LMEM_FIXED, 8192);

   456

   457

	{

   458

		SYSTEMTIME time;

   459

		GetLocalTime(&time);

   460

		output += sprintf(output,

   461

			"*** OpenTTD Crash Report ***\r\n"

   462

			"Date: %d-%.2d-%.2d %.2d:%.2d:%.2d\r\n"

   463

			"Build: %s built on " __DATE__ " " __TIME__ "\r\n",

   464

			time.wYear,

   465

			time.wMonth,

   466

			time.wDay,

   467

			time.wHour,

   468

			time.wMinute,

   469

			time.wSecond,

   470

			_openttd_revision

   471

		);

   472

	}

   473

   474

	if (_exception_string)

   475

		output += sprintf(output, "Reason: %s\r\n", _exception_string);

   476

   477

#ifdef _M_AMD64

   478

	output += sprintf(output, "Exception %.8X at %.16IX\r\n"

   479

		"Registers:\r\n"

   480

		"RAX: %.16llX RBX: %.16llX RCX: %.16llX RDX: %.16llX\r\n"

   481

		"RSI: %.16llX RDI: %.16llX RBP: %.16llX RSP: %.16llX\r\n"

   482

		"R8:  %.16llX R9:  %.16llX R10: %.16llX R11: %.16llX\r\n"

   483

		"R12: %.16llX R13: %.16llX R14: %.16llX R15: %.16llX\r\n"

   484

		"RIP: %.16llX EFLAGS: %.8X\r\n"

   485

		"\r\nBytes at CS:RIP:\r\n",

   486

		ep->ExceptionRecord->ExceptionCode,

   487

		ep->ExceptionRecord->ExceptionAddress,

   488

		ep->ContextRecord->Rax,

   489

		ep->ContextRecord->Rbx,

   490

		ep->ContextRecord->Rcx,

   491

		ep->ContextRecord->Rdx,

   492

		ep->ContextRecord->Rsi,

   493

		ep->ContextRecord->Rdi,

   494

		ep->ContextRecord->Rbp,

   495

		ep->ContextRecord->Rsp,

   496

		ep->ContextRecord->R8,

   497

		ep->ContextRecord->R9,

   498

		ep->ContextRecord->R10,