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 "fileio.h"

    17

#include <windows.h>

    18

#include <winnt.h>

    19

#include <wininet.h>

    20

#include <io.h>

    21

#include <fcntl.h>

    22

#include <shlobj.h> // SHGetFolderPath

    23

#include "variables.h"

    24

#include "win32.h"

    25

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

    27

#include <ctype.h>

    28

#include <tchar.h>

    29

#include <errno.h>

    30

#include <sys/types.h>

    31

#include <sys/stat.h>

    33

    34

static bool _has_console;

    35

    36

#if defined(__MINGW32__)

    37

	#include <stdint.h>

    38

#endif

    39

    40

static bool cursor_visible = true;

    41

    42

bool MyShowCursor(bool show)

    43

{

    44

	if (cursor_visible == show) return show;

    45

    46

	cursor_visible = show;

    47

	ShowCursor(show);

    48

    49

	return !show;

    50

}

    51

    52

/** Helper function needed by dynamically loading libraries

    53

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

    54

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

    55

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

    56

{

    57

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

    58

		HMODULE lib;

    59

		lib = LoadLibrary(MB_TO_WIDE(dll));

    60

    61

		if (lib == NULL) return false;

    62

		for (;;) {

    63

			FARPROC p;

    64

    65

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

    66

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

    67

#if defined(WINCE)

    68

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

    69

#else

    70

			p = GetProcAddress(lib, dll);

    71

#endif

    72

			if (p == NULL) return false;

    73

			*proc++ = (Function)p;

    74

		}

    75

		dll++;

    76

	}

    77

	return true;

    78

}

    79

    80

#ifdef _MSC_VER

    81

static const char *_exception_string = NULL;

    82

#endif

    83

    84

void ShowOSErrorBox(const char *buf)

    85

{

    86

	MyShowCursor(true);

    87

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

    88

    89

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

    90

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

    91

	if (*buf == '!') {

    92

		_exception_string = buf;

    93

		*(byte*)0 = 0;

    94

	}

    95

#endif

    96

}

    97

    98

#ifdef _MSC_VER

    99

   100

static void *_safe_esp;

   101

static char *_crash_msg;

   102

static bool _expanded;

   103

static bool _did_emerg_save;

   104

static int _ident;

   105

   106

struct DebugFileInfo {

   107

	uint32 size;

   108

	uint32 crc32;

   109

	SYSTEMTIME file_time;

   110

};

   111

   112

static uint32 *_crc_table;

   113

   114

static void MakeCRCTable(uint32 *table) {

   115

	uint32 crc, poly = 0xEDB88320L;

   116

	int i;

   117

	int j;

   118

   119

	_crc_table = table;

   120

   121

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

   122

		crc = i;

   123

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

   124

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

   125

		}

   126

		table[i] = crc;

   127

	}

   128

}

   129

   130

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

   131

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

   132

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

   133

	}

   134

	return crc;

   135

}

   136

   137

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

   138

{

   139

	HANDLE file;

   140

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

   141

   142

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

   143

	if (file != INVALID_HANDLE_VALUE) {

   144

		byte buffer[1024];

   145

		DWORD numread;

   146

		uint32 filesize = 0;

   147

		FILETIME write_time;

   148

		uint32 crc = (uint32)-1;

   149

   150

		for (;;) {

   151

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

   152

				break;

   153

			filesize += numread;

   154

			crc = CalcCRC(buffer, numread, crc);

   155

		}

   156

		dfi->size = filesize;

   157

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

   158

   159

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

   160

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

   161

		}

   162

		CloseHandle(file);

   163

	}

   164

}

   165

   166

   167

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

   168

{

   169

	TCHAR buffer[MAX_PATH];

   170

	DebugFileInfo dfi;

   171

   172

	GetModuleFileName(mod, buffer, MAX_PATH);

   173

	GetFileInfo(&dfi, buffer);

   174

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

   175

		WIDE_TO_MB(buffer),

   176

		mod,

   177

		dfi.size,

   178

		dfi.crc32,

   179

		dfi.file_time.wYear,

   180

		dfi.file_time.wMonth,

   181

		dfi.file_time.wDay,

   182

		dfi.file_time.wHour,

   183

		dfi.file_time.wMinute,

   184

		dfi.file_time.wSecond

   185

	);

   186

	return output;

   187

}

   188

   189

static char *PrintModuleList(char *output)

   190

{

   191

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

   192

   193

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

   194

		HMODULE modules[100];

   195

		DWORD needed;

   196

		BOOL res;

   197

		int count, i;

   198

   199

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

   200

		if (proc != NULL) {

   201

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

   202

			CloseHandle(proc);

   203

			if (res) {

   204

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

   205

   206

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

   207

				return output;

   208

			}

   209

		}

   210

	}

   211

	output = PrintModuleInfo(output, NULL);

   212

	return output;

   213

}

   214

   215

static const TCHAR _crash_desc[] =

   216

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

   217

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

   218

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

   219

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

   220

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

   221

   222

static const TCHAR _save_succeeded[] =

   223

	_T("Emergency save succeeded.\n")

   224

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

   225

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

   226

   227

static bool EmergencySave()

   228

{

   230

	return true;

   231

}

   232

   233

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

   234

#if 0

   235

   236

struct WinInetProcs {

   237

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

   238

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

   239

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

   240

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

   241

	BOOL (WINAPI *InternetCloseHandle)(HINTERNET);

   242

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

   243

};

   244

   245

#define M(x) x "\0"

   246

#if defined(UNICODE)

   247

# define W(x) x "W"

   248

#else

   249

# define W(x) x "A"

   250

#endif

   251

static const char wininet_files[] =

   252

	M("wininet.dll")

   253

	M(W("InternetOpen"))

   254

	M(W("InternetConnect"))

   255

	M(W("HttpOpenRequest"))

   256

	M(W("HttpSendRequest"))

   257

	M("InternetCloseHandle")

   258

	M(W("HttpQueryInfo"))

   259

	M("");

   260

#undef W

   261

#undef M

   262

   263

static WinInetProcs _wininet;

   264

   265

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

   266

{

   267

	HINTERNET inet, conn, http;

   268

	const TCHAR *err = NULL;

   269

	DWORD code, len;

   270

	static TCHAR buf[100];

   271

	TCHAR buff[100];

   272

   273

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

   274

   275

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

   276

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

   277

   278

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

   279

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

   280

   281

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

   282

   283

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

   284

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

   285

   286

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

   287

   288

	len = sizeof(code);

   289

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

   290

   291

	if (code != 200) {

   292

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

   293

		len = sizeof(buf) - l;

   294

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

   295

		err = buf;

   296

	}

   297

   298

error4:

   299

	_wininet.InternetCloseHandle(http);

   300

error3:

   301

	_wininet.InternetCloseHandle(conn);

   302

error2:

   303

	_wininet.InternetCloseHandle(inet);

   304

error1:

   305

	return err;

   306

}

   307

   308

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

   309

{

   310

	HANDLE h;

   311

	unsigned long size;

   312

	unsigned long read;

   313

	void *mem;

   314

   315

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

   316

	if (h == NULL) return;

   317

   318

	size = GetFileSize(h, NULL);

   319

	if (size > 500000) goto error1;

   320

   321

	mem = malloc(size);

   322

	if (mem == NULL) goto error1;

   323

   324

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

   325

   326

	SubmitCrashReport(wnd, mem, size, file);

   327

   328

error2:

   329

	free(mem);

   330

error1:

   331

	CloseHandle(h);

   332

}

   333

   334

#endif /* Disabled crash-submit procedures */

   335

   336

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

   337

   338

static void SetWndSize(HWND wnd, int mode)

   339

{

   340

	RECT r, r2;

   341

	int offs;

   342

   343

	GetWindowRect(wnd, &r);

   344

   345

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

   346

   347

	if (mode >= 0) {

   348

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

   349

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

   350

		if (!mode) offs = -offs;

   351

		SetWindowPos(wnd, HWND_TOPMOST, 0, 0,

   352

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

   353

	} else {

   354

		SetWindowPos(wnd, HWND_TOPMOST,

   355

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

   356

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

   357

			0, 0, SWP_NOSIZE);

   358

	}

   359

}

   360

   361

static bool DoEmergencySave(HWND wnd)

   362

{

   363

	bool b = false;

   364

   365

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

   366

	_did_emerg_save = true;

   367

	__try {

   368

		b = EmergencySave();

   369

	} __except (1) {}

   370

	return b;

   371

}

   372

   373

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

   374

{

   375

	switch (msg) {

   376

		case WM_INITDIALOG: {

   377

#if defined(UNICODE)

   378

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

   379

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

   380

			wchar_t crash_msgW[8096];

   381

#endif

   382

			SetDlgItemText(wnd, 10, _crash_desc);

   383

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

   384

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

   385

			SetWndSize(wnd, -1);

   386

		} return TRUE;

   387

		case WM_COMMAND:

   388

			switch (wParam) {

   389

				case 12: /* Close */

   390

					ExitProcess(0);

   391

				case 13: /* Emergency save */

   392

					if (DoEmergencySave(wnd)) {

   393

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

   394

					} else {

   395

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

   396

					}

   397

					break;

   398

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

   399

#if 0

   400

				case 14: { /* Submit crash report */

   401

					const TCHAR *s;

   402

   403

					SetCursor(LoadCursor(NULL, IDC_WAIT));

   404

   405

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

   406

					if (s != NULL) {

   407

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

   408

						break;

   409

					}

   410

   411

					// try to submit emergency savegame

   412

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

   413

   414

					// try to submit the autosaved game

   415

					if (_opt.autosave) {

   416

						TCHAR buf[40];

   417

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

   418

						SubmitFile(wnd, buf);

   419

					}

   420

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

   421

					SetCursor(LoadCursor(NULL, IDC_ARROW));

   422

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

   423

				} break;

   424

#endif /* Disabled crash-submit procedures */

   425

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

   426

					_expanded ^= 1;

   427

					SetWndSize(wnd, _expanded);

   428

					break;

   429

			}

   430

			return TRUE;

   431

		case WM_CLOSE: ExitProcess(0);

   432

	}

   433

   434

	return FALSE;

   435

}

   436

   437

static void Handler2()

   438

{

   439

	ShowCursor(TRUE);

   440

	ShowWindow(GetActiveWindow(), FALSE);

   441

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

   442

}

   443

   444

extern bool CloseConsoleLogIfActive();

   445

   446

static LONG WINAPI ExceptionHandler(EXCEPTION_POINTERS *ep)

   447

{

   448

	extern const char _openttd_revision[];

   449

	char *output;

   450

	static bool had_exception = false;

   451

   452

	if (had_exception) ExitProcess(0);

   453

	had_exception = true;

   454

   455

	_ident = GetTickCount(); // something pretty unique

   456

   457

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

   458

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

   459

   460

	{

   461

		SYSTEMTIME time;

   462

		GetLocalTime(&time);

   463

		output += sprintf(output,

   464

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

   465

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

   466

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

   467

			time.wYear,

   468

			time.wMonth,

   469

			time.wDay,

   470

			time.wHour,

   471

			time.wMinute,

   472

			time.wSecond,

   473

			_openttd_revision

   474

		);

   475

	}

   476

   477

	if (_exception_string)

   478

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

   479

   480

#ifdef _M_AMD64

   481

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

   482

		"Registers:\r\n"

   483

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

   484

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

   485

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

   486

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

   487

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

   488

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

   489

		ep->ExceptionRecord->ExceptionCode,

   490

		ep->ExceptionRecord->ExceptionAddress,

   491

		ep->ContextRecord->Rax,

   492

		ep->ContextRecord->Rbx,

   493

		ep->ContextRecord->Rcx,

   494

		ep->ContextRecord->Rdx,

   495

		ep->ContextRecord->Rsi,

   496

		ep->ContextRecord->Rdi,

   497

		ep->ContextRecord->Rbp,

   498