# win32.cpp

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    00001 /* $Id: win32.cpp 15720 2009-03-15 14:28:46Z rubidium $ */
    00002
    00005 #include "stdafx.h"
    00006 #include "openttd.h"
    00007 #include "debug.h"
    00008 #include "saveload/saveload.h"
    00009 #include "gfx_func.h"
    00010 #include "textbuf_gui.h"
    00011 #include "fileio_func.h"
    00012 #include "fios.h"
    00013 #include "rev.h"
    00014 #include <windows.h>
    00015 #include <winnt.h>
    00016 #include <wininet.h>
    00017 #include <fcntl.h>
    00018 #include <shlobj.h> /* SHGetFolderPath */
    00019 #include "variables.h"
    00020 #include "win32.h"
    00021 #include "core/alloc_func.hpp"
    00022 #include "functions.h"
    00023 #include "core/random_func.hpp"
    00024 #include "core/bitmath_func.hpp"
    00025 #include "string_func.h"
    00026 #include "gamelog.h"
    00027 #include <ctype.h>
    00028 #include <errno.h>
    00029 #include <sys/types.h>
    00030 #include <sys/stat.h>
    00031 #if defined(_MSC_VER) && !defined(WINCE)
    00032   #include <dbghelp.h>
    00033   #include "strings_func.h"
    00034 #endif
    00035
    00036 static bool _has_console;
    00037
    00038 static bool cursor_visible = true;
    00039
    00040 bool MyShowCursor(bool show)
    00041 {
    00042   if (cursor_visible == show) return show;
    00043
    00044   cursor_visible = show;
    00045   ShowCursor(show);
    00046
    00047   return !show;
    00048 }
    00049
    00053 bool LoadLibraryList(Function proc[], const char *dll)
    00054 {
    00055   while (*dll != '\0') {
    00056     HMODULE lib;
    00057     lib = LoadLibrary(MB_TO_WIDE(dll));
    00058
    00059     if (lib == NULL) return false;
    00060     for (;;) {
    00061       FARPROC p;
    00062
    00063       while (*dll++ != '\0') { /* Nothing */ }
    00064       if (*dll == '\0') break;
    00065 #if defined(WINCE)
    00066       p = GetProcAddress(lib, MB_TO_WIDE(dll));
    00067 #else
    00068       p = GetProcAddress(lib, dll);
    00069 #endif
    00070       if (p == NULL) return false;
    00071       *proc++ = (Function)p;
    00072     }
    00073     dll++;
    00074   }
    00075   return true;
    00076 }
    00077
    00078 #ifdef _MSC_VER
    00079 static const char *_exception_string = NULL;
    00080 void SetExceptionString(const char *s, ...)
    00081 {
    00082   va_list va;
    00083   char buf[512];
    00084
    00085   va_start(va, s);
    00086   vsnprintf(buf, lengthof(buf), s, va);
    00087   va_end(va);
    00088
    00089   _exception_string = strdup(buf);
    00090 }
    00091 #endif
    00092
    00093 void ShowOSErrorBox(const char *buf, bool system)
    00094 {
    00095   MyShowCursor(true);
    00096   MessageBox(GetActiveWindow(), MB_TO_WIDE(buf), _T("Error!"), MB_ICONSTOP);
    00097
    00098 /* if exception tracker is enabled, we crash here to let the exception handler handle it. */
    00099 #if defined(WIN32_EXCEPTION_TRACKER) && !defined(_DEBUG)
    00100   if (system) {
    00101     _exception_string = buf;
    00102     *(byte*)0 = 0;
    00103   }
    00104 #endif
    00105 }
    00106
    00107 #if defined(_MSC_VER) && !defined(WINCE)
    00108
    00109 static void *_safe_esp;
    00110 static char *_crash_msg;
    00111 static bool _expanded;
    00112 static bool _did_emerg_save;
    00113 static int _ident;
    00114
    00115 struct DebugFileInfo {
    00116   uint32 size;
    00117   uint32 crc32;
    00118   SYSTEMTIME file_time;
    00119 };
    00120
    00121 static uint32 *_crc_table;
    00122
    00123 static void MakeCRCTable(uint32 *table)
    00124 {
    00125   uint32 crc, poly = 0xEDB88320L;
    00126   int i;
    00127   int j;
    00128
    00129   _crc_table = table;
    00130
    00131   for (i = 0; i != 256; i++) {
    00132     crc = i;
    00133     for (j = 8; j != 0; j--) {
    00134       crc = (crc & 1 ? (crc >> 1) ^ poly : crc >> 1);
    00135     }
    00136     table[i] = crc;
    00137   }
    00138 }
    00139
    00140 static uint32 CalcCRC(byte *data, uint size, uint32 crc)
    00141 {
    00142   for (; size > 0; size--) {
    00143     crc = ((crc >> 8) & 0x00FFFFFF) ^ _crc_table[(crc ^ *data++) & 0xFF];
    00144   }
    00145   return crc;
    00146 }
    00147
    00148 static void GetFileInfo(DebugFileInfo *dfi, const TCHAR *filename)
    00149 {
    00150   HANDLE file;
    00151   memset(dfi, 0, sizeof(*dfi));
    00152
    00153   file = CreateFile(filename, GENERIC_READ, FILE_SHARE_READ, NULL, OPEN_EXISTING, 0, 0);
    00154   if (file != INVALID_HANDLE_VALUE) {
    00155     byte buffer[1024];
    00156     DWORD numread;
    00157     uint32 filesize = 0;
    00158     FILETIME write_time;
    00159     uint32 crc = (uint32)-1;
    00160
    00161     for (;;) {
    00162       if (ReadFile(file, buffer, sizeof(buffer), &numread, NULL) == 0 || numread == 0)
    00163         break;
    00164       filesize += numread;
    00165       crc = CalcCRC(buffer, numread, crc);
    00166     }
    00167     dfi->size = filesize;
    00168     dfi->crc32 = crc ^ (uint32)-1;
    00169
    00170     if (GetFileTime(file, NULL, NULL, &write_time)) {
    00171       FileTimeToSystemTime(&write_time, &dfi->file_time);
    00172     }
    00173     CloseHandle(file);
    00174   }
    00175 }
    00176
    00177
    00178 static char *PrintModuleInfo(char *output, const char *last, HMODULE mod)
    00179 {
    00180   TCHAR buffer[MAX_PATH];
    00181   DebugFileInfo dfi;
    00182
    00183   GetModuleFileName(mod, buffer, MAX_PATH);
    00184   GetFileInfo(&dfi, buffer);
    00185   output += seprintf(output, last, " %-20s handle: %p size: %d crc: %.8X date: %d-%.2d-%.2d %.2d:%.2d:%.2d\r\n",
    00186     WIDE_TO_MB(buffer),
    00187     mod,
    00188     dfi.size,
    00189     dfi.crc32,
    00190     dfi.file_time.wYear,
    00191     dfi.file_time.wMonth,
    00192     dfi.file_time.wDay,
    00193     dfi.file_time.wHour,
    00194     dfi.file_time.wMinute,
    00195     dfi.file_time.wSecond
    00196   );
    00197   return output;
    00198 }
    00199
    00200 static char *PrintModuleList(char *output, const char *last)
    00201 {
    00202   BOOL (WINAPI *EnumProcessModules)(HANDLE, HMODULE*, DWORD, LPDWORD);
    00203
    00204   if (LoadLibraryList((Function*)&EnumProcessModules, "psapi.dll\0EnumProcessModules\0\0")) {
    00205     HMODULE modules[100];
    00206     DWORD needed;
    00207     BOOL res;
    00208
    00209     HANDLE proc = OpenProcess(PROCESS_ALL_ACCESS, FALSE, GetCurrentProcessId());
    00210     if (proc != NULL) {
    00211       res = EnumProcessModules(proc, modules, sizeof(modules), &needed);
    00212       CloseHandle(proc);
    00213       if (res) {
    00214         size_t count = min(needed / sizeof(HMODULE), lengthof(modules));
    00215
    00216         for (size_t i = 0; i != count; i++) output = PrintModuleInfo(output, last, modules[i]);
    00217         return output;
    00218       }
    00219     }
    00220   }
    00221   output = PrintModuleInfo(output, last, NULL);
    00222   return output;
    00223 }
    00224
    00225 static const TCHAR _crash_desc[] =
    00226   _T("A serious fault condition occured in the game. The game will shut down.\n")
    00227   _T("Please send the crash information and the crash.dmp file (if any) to the developers.\n")
    00228   _T("This will greatly help debugging. The correct place to do this is http://bugs.openttd.org. ")
    00229   _T("The information contained in the report is displayed below.\n")
    00230   _T("Press \"Emergency save\" to attempt saving the game.");
    00231
    00232 static const TCHAR _save_succeeded[] =
    00233   _T("Emergency save succeeded.\n")
    00234   _T("Be aware that critical parts of the internal game state may have become ")
    00235   _T("corrupted. The saved game is not guaranteed to work.");
    00236
    00237 static bool EmergencySave()
    00238 {
    00239   SaveOrLoad("crash.sav", SL_SAVE, BASE_DIR);
    00240   return true;
    00241 }
    00242
    00243 /* Disable the crash-save submit code as it's not used */
    00244 #if 0
    00245
    00246 struct WinInetProcs {
    00247   HINTERNET (WINAPI *InternetOpen)(LPCTSTR, DWORD, LPCTSTR, LPCTSTR, DWORD);
    00248   HINTERNET (WINAPI *InternetConnect)(HINTERNET, LPCTSTR, INTERNET_PORT, LPCTSTR, LPCTSTR, DWORD, DWORD, DWORD);
    00249   HINTERNET (WINAPI *HttpOpenRequest)(HINTERNET, LPCTSTR, LPCTSTR, LPCTSTR, LPCTSTR, LPCTSTR *, DWORD, DWORD);
    00250   BOOL (WINAPI *HttpSendRequest)(HINTERNET, LPCTSTR, DWORD, LPVOID, DWORD);
    00251   BOOL (WINAPI *InternetCloseHandle)(HINTERNET);
    00252   BOOL (WINAPI *HttpQueryInfo)(HINTERNET, DWORD, LPVOID, LPDWORD, LPDWORD);
    00253 };
    00254
    00255 #define M(x) x "\0"
    00256 #if defined(UNICODE)
    00257 # define W(x) x "W"
    00258 #else
    00259 # define W(x) x "A"
    00260 #endif
    00261 static const char wininet_files[] =
    00262   M("wininet.dll")
    00263   M(W("InternetOpen"))
    00264   M(W("InternetConnect"))
    00265   M(W("HttpOpenRequest"))
    00266   M(W("HttpSendRequest"))
    00267   M("InternetCloseHandle")
    00268   M(W("HttpQueryInfo"))
    00269   M("");
    00270 #undef W
    00271 #undef M
    00272
    00273 static WinInetProcs _wininet;
    00274
    00275 static const TCHAR *SubmitCrashReport(HWND wnd, void *msg, size_t msglen, const TCHAR *arg)
    00276 {
    00277   HINTERNET inet, conn, http;
    00278   const TCHAR *err = NULL;
    00279   DWORD code, len;
    00280   static TCHAR buf[100];
    00281   TCHAR buff[100];
    00282
    00283   if (_wininet.InternetOpen == NULL && !LoadLibraryList((Function*)&_wininet, wininet_files)) return _T("can't load wininet.dll");
    00284
    00285   inet = _wininet.InternetOpen(_T("OTTD"), INTERNET_OPEN_TYPE_PRECONFIG, NULL, NULL, 0 );
    00286   if (inet == NULL) { err = _T("internetopen failed"); goto error1; }
    00287
    00288   conn = _wininet.InternetConnect(inet, _T("www.openttd.org"), INTERNET_DEFAULT_HTTP_PORT, _T(""), _T(""), INTERNET_SERVICE_HTTP, 0, 0);
    00289   if (conn == NULL) { err = _T("internetconnect failed"); goto error2; }
    00290
    00291   _sntprintf(buff, lengthof(buff), _T("/crash.php?file=%s&ident=%d"), arg, _ident);
    00292
    00293   http = _wininet.HttpOpenRequest(conn, _T("POST"), buff, NULL, NULL, NULL, INTERNET_FLAG_NO_CACHE_WRITE , 0);
    00294   if (http == NULL) { err = _T("httpopenrequest failed"); goto error3; }
    00295
    00296   if (!_wininet.HttpSendRequest(http, _T("Content-type: application/binary"), -1, msg, (DWORD)msglen)) { err = _T("httpsendrequest failed"); goto error4; }
    00297
    00298   len = sizeof(code);
    00299   if (!_wininet.HttpQueryInfo(http, HTTP_QUERY_STATUS_CODE | HTTP_QUERY_FLAG_NUMBER, &code, &len, 0)) { err = _T("httpqueryinfo failed"); goto error4; }
    00300
    00301   if (code != 200) {
    00302     int l = _sntprintf(buf, lengthof(buf), _T("Server said: %d "), code);
    00303     len = sizeof(buf) - l;
    00304     _wininet.HttpQueryInfo(http, HTTP_QUERY_STATUS_TEXT, buf + l, &len, 0);
    00305     err = buf;
    00306   }
    00307
    00308 error4:
    00309   _wininet.InternetCloseHandle(http);
    00310 error3:
    00311   _wininet.InternetCloseHandle(conn);
    00312 error2:
    00313   _wininet.InternetCloseHandle(inet);
    00314 error1:
    00315   return err;
    00316 }
    00317
    00318 static void SubmitFile(HWND wnd, const TCHAR *file)
    00319 {
    00320   HANDLE h;
    00321   unsigned long size;
    00322   unsigned long read;
    00323   void *mem;
    00324
    00325   h = CreateFile(file, GENERIC_READ, FILE_SHARE_READ, NULL, OPEN_EXISTING, 0, NULL);
    00326   if (h == NULL) return;
    00327
    00328   size = GetFileSize(h, NULL);
    00329   if (size > 500000) goto error1;
    00330
    00331   mem = MallocT<byte>(size);
    00332   if (mem == NULL) goto error1;
    00333
    00334   if (!ReadFile(h, mem, size, &read, NULL) || read != size) goto error2;
    00335
    00336   SubmitCrashReport(wnd, mem, size, file);
    00337
    00338 error2:
    00339   free(mem);
    00340 error1:
    00341   CloseHandle(h);
    00342 }
    00343
    00344 #endif /* Disabled crash-submit procedures */
    00345
    00346 static const TCHAR * const _expand_texts[] = {_T("S&how report >>"), _T("&Hide report <<") };
    00347
    00348 static void SetWndSize(HWND wnd, int mode)
    00349 {
    00350   RECT r, r2;
    00351   int offs;
    00352
    00353   GetWindowRect(wnd, &r);
    00354
    00355   SetDlgItemText(wnd, 15, _expand_texts[mode == 1]);
    00356
    00357   if (mode >= 0) {
    00358     GetWindowRect(GetDlgItem(wnd, 11), &r2);
    00359     offs = r2.bottom - r2.top + 10;
    00360     if (!mode) offs = -offs;
    00361     SetWindowPos(wnd, HWND_TOPMOST, 0, 0,
    00362       r.right - r.left, r.bottom - r.top + offs, SWP_NOMOVE | SWP_NOZORDER);
    00363   } else {
    00364     SetWindowPos(wnd, HWND_TOPMOST,
    00365       (GetSystemMetrics(SM_CXSCREEN) - (r.right - r.left)) / 2,
    00366       (GetSystemMetrics(SM_CYSCREEN) - (r.bottom - r.top)) / 2,
    00367       0, 0, SWP_NOSIZE);
    00368   }
    00369 }
    00370
    00371 static bool DoEmergencySave(HWND wnd)
    00372 {
    00373   bool b = false;
    00374
    00375   EnableWindow(GetDlgItem(wnd, 13), FALSE);
    00376   _did_emerg_save = true;
    00377   __try {
    00378     b = EmergencySave();
    00379   } __except (1) {}
    00380   return b;
    00381 }
    00382
    00383 static INT_PTR CALLBACK CrashDialogFunc(HWND wnd, UINT msg, WPARAM wParam, LPARAM lParam)
    00384 {
    00385   switch (msg) {
    00386     case WM_INITDIALOG: {
    00387 #if defined(UNICODE)
    00388       /* We need to put the crash-log in a seperate buffer because the default
    00389        * buffer in MB_TO_WIDE is not large enough (512 chars) */
    00390       wchar_t crash_msgW[8096];
    00391 #endif
    00392       SetDlgItemText(wnd, 10, _crash_desc);
    00393       SetDlgItemText(wnd, 11, MB_TO_WIDE_BUFFER(_crash_msg, crash_msgW, lengthof(crash_msgW)));
    00394       SendDlgItemMessage(wnd, 11, WM_SETFONT, (WPARAM)GetStockObject(ANSI_FIXED_FONT), FALSE);
    00395       SetWndSize(wnd, -1);
    00396     } return TRUE;
    00397     case WM_COMMAND:
    00398       switch (wParam) {
    00399         case 12: // Close
    00400           ExitProcess(0);
    00401         case 13: // Emergency save
    00402           if (DoEmergencySave(wnd)) {
    00403             MessageBox(wnd, _save_succeeded, _T("Save successful"), MB_ICONINFORMATION);
    00404           } else {
    00405             MessageBox(wnd, _T("Save failed"), _T("Save failed"), MB_ICONINFORMATION);
    00406           }
    00407           break;
    00408 /* Disable the crash-save submit code as it's not used */
    00409 #if 0
    00410         case 14: { // Submit crash report
    00411           const TCHAR *s;
    00412
    00413           SetCursor(LoadCursor(NULL, IDC_WAIT));
    00414
    00415           s = SubmitCrashReport(wnd, _crash_msg, strlen(_crash_msg), _T(""));
    00416           if (s != NULL) {
    00417             MessageBox(wnd, s, _T("Error"), MB_ICONSTOP);
    00418             break;
    00419           }
    00420
    00421           /* try to submit emergency savegame */
    00422           if (_did_emerg_save || DoEmergencySave(wnd)) SubmitFile(wnd, _T("crash.sav"));
    00423
    00424           /* try to submit the autosaved game */
    00425           if (_opt.autosave) {
    00426             TCHAR buf[40];
    00427             _sntprintf(buf, lengthof(buf), _T("autosave%d.sav"), (_autosave_ctr - 1) & 3);
    00428             SubmitFile(wnd, buf);
    00429           }
    00430           EnableWindow(GetDlgItem(wnd, 14), FALSE);
    00431           SetCursor(LoadCursor(NULL, IDC_ARROW));
    00432           MessageBox(wnd, _T("Crash report submitted. Thank you."), _T("Crash Report"), MB_ICONINFORMATION);
    00433         } break;
    00434 #endif /* Disabled crash-submit procedures */
    00435         case 15: // Expand window to show crash-message
    00436           _expanded ^= 1;
    00437           SetWndSize(wnd, _expanded);
    00438           break;
    00439       }
    00440       return TRUE;
    00441     case WM_CLOSE: ExitProcess(0);
    00442   }
    00443
    00444   return FALSE;
    00445 }
    00446
    00447 static void Handler2()
    00448 {
    00449   ShowCursor(TRUE);
    00450   ShowWindow(GetActiveWindow(), FALSE);
    00451   DialogBox(GetModuleHandle(NULL), MAKEINTRESOURCE(100), NULL, CrashDialogFunc);
    00452 }
    00453
    00454 extern bool CloseConsoleLogIfActive();
    00455
    00456 static HANDLE _file_crash_log;
    00457
    00458 static void GamelogPrintCrashLogProc(const char *s)
    00459 {
    00460   DWORD num_written;
    00461   WriteFile(_file_crash_log, s, (DWORD)strlen(s), &num_written, NULL);
    00462   WriteFile(_file_crash_log, "\r\n", (DWORD)strlen("\r\n"), &num_written, NULL);
    00463 }
    00464
    00466 static const int EXCEPTION_OUTPUT_SIZE = 8192;
    00467
    00468 static LONG WINAPI ExceptionHandler(EXCEPTION_POINTERS *ep)
    00469 {
    00470   char *output;
    00471   static bool had_exception = false;
    00472
    00473   if (had_exception) ExitProcess(0);
    00474   had_exception = true;
    00475
    00476   _ident = GetTickCount(); // something pretty unique
    00477
    00478   MakeCRCTable(AllocaM(uint32, 256));
    00479   _crash_msg = output = (char*)LocalAlloc(LMEM_FIXED, EXCEPTION_OUTPUT_SIZE);
    00480   const char *last = output + EXCEPTION_OUTPUT_SIZE - 1;
    00481
    00482   {
    00483     SYSTEMTIME time;
    00484     GetLocalTime(&time);
    00485     output += seprintf(output, last,
    00486       "*** OpenTTD Crash Report ***\r\n"
    00487       "Date: %d-%.2d-%.2d %.2d:%.2d:%.2d\r\n"
    00488       "Build: %s (%d) built on " __DATE__ " " __TIME__ "\r\n",
    00489       time.wYear,
    00490       time.wMonth,
    00491       time.wDay,
    00492       time.wHour,
    00493       time.wMinute,
    00494       time.wSecond,
    00495       _openttd_revision,
    00496       _openttd_revision_modified
    00497     );
    00498   }
    00499
    00500   if (_exception_string)
    00501     output += seprintf(output, last, "Reason: %s\r\n", _exception_string);
    00502
    00503   output += seprintf(output, last, "Language: %s\r\n", _dynlang.curr_file);
    00504
    00505 #ifdef _M_AMD64
    00506   output += seprintf(output, last, "Exception %.8X at %.16IX\r\n"
    00507     "Registers:\r\n"
    00508     "RAX: %.16llX RBX: %.16llX RCX: %.16llX RDX: %.16llX\r\n"
    00509     "RSI: %.16llX RDI: %.16llX RBP: %.16llX RSP: %.16llX\r\n"
    00510     "R8:  %.16llX R9:  %.16llX R10: %.16llX R11: %.16llX\r\n"
    00511     "R12: %.16llX R13: %.16llX R14: %.16llX R15: %.16llX\r\n"
    00512     "RIP: %.16llX EFLAGS: %.8X\r\n"
    00513     "\r\nBytes at CS:RIP:\r\n",
    00514     ep->ExceptionRecord->ExceptionCode,
    00515     ep->ExceptionRecord->ExceptionAddress,
    00516     ep->ContextRecord->Rax,
    00517     ep->ContextRecord->Rbx,
    00518     ep->ContextRecord->Rcx,
    00519     ep->ContextRecord->Rdx,
    00520     ep->ContextRecord->Rsi,
    00521     ep->ContextRecord->Rdi,
    00522     ep->ContextRecord->Rbp,
    00523     ep->ContextRecord->Rsp,
    00524     ep->ContextRecord->R8,
    00525     ep->ContextRecord->R9,
    00526     ep->ContextRecord->R10,
    00527     ep->ContextRecord->R11,
    00528     ep->ContextRecord->R12,
    00529     ep->ContextRecord->R13,
    00530     ep->ContextRecord->R14,
    00531     ep->ContextRecord->R15,
    00532     ep->ContextRecord->Rip,
    00533     ep->ContextRecord->EFlags
    00534   );
    00535 #else
    00536   output += seprintf(output, last, "Exception %.8X at %.8p\r\n"
    00537     "Registers:\r\n"
    00538     " EAX: %.8X EBX: %.8X ECX: %.8X EDX: %.8X\r\n"
    00539     " ESI: %.8X EDI: %.8X EBP: %.8X ESP: %.8X\r\n"
    00540     " EIP: %.8X EFLAGS: %.8X\r\n"
    00541     "\r\nBytes at CS:EIP:\r\n",
    00542     ep->ExceptionRecord->ExceptionCode,
    00543     ep->ExceptionRecord->ExceptionAddress,
    00544     ep->ContextRecord->Eax,
    00545     ep->ContextRecord->Ebx,
    00546     ep->ContextRecord->Ecx,
    00547     ep->ContextRecord->Edx,
    00548     ep->ContextRecord->Esi,
    00549     ep->ContextRecord->Edi,
    00550     ep->ContextRecord->Ebp,
    00551     ep->ContextRecord->Esp,
    00552     ep->ContextRecord->Eip,
    00553     ep->ContextRecord->EFlags
    00554   );
    00555 #endif
    00556
    00557   {
    00558 #ifdef _M_AMD64
    00559     byte *b = (byte*)ep->ContextRecord->Rip;
    00560 #else
    00561     byte *b = (byte*)ep->ContextRecord->Eip;
    00562 #endif
    00563     int i;
    00564     for (i = 0; i != 24; i++) {
    00565       if (IsBadReadPtr(b, 1)) {
    00566         output += seprintf(output, last, " ??"); // OCR: WAS: , 0);
    00567       } else {
    00568         output += seprintf(output, last, " %.2X", *b);
    00569       }
    00570       b++;
    00571     }
    00572     output += seprintf(output, last,
    00573       "\r\n"
    00574       "\r\nStack trace: \r\n"
    00575     );
    00576   }
    00577
    00578   {
    00579     int i, j;
    00580 #ifdef _M_AMD64
    00581     uint32 *b = (uint32*)ep->ContextRecord->Rsp;
    00582 #else
    00583     uint32 *b = (uint32*)ep->ContextRecord->Esp;
    00584 #endif
    00585     for (j = 0; j != 24; j++) {
    00586       for (i = 0; i != 8; i++) {
    00587         if (IsBadReadPtr(b, sizeof(uint32))) {
    00588           output += seprintf(output, last, " ????????"); // OCR: WAS - , 0);
    00589         } else {
    00590           output += seprintf(output, last, " %.8X", *b);
    00591         }
    00592         b++;
    00593       }
    00594       output += seprintf(output, last, "\r\n");
    00595     }
    00596   }
    00597
    00598   output += seprintf(output, last, "\r\nModule information:\r\n");
    00599   output = PrintModuleList(output, last);
    00600
    00601   {
    00602     _OSVERSIONINFOA os;
    00603     os.dwOSVersionInfoSize = sizeof(os);
    00604     GetVersionExA(&os);
    00605     output += seprintf(output, last, "\r\nSystem information:\r\n"
    00606       " Windows version %d.%d %d %s\r\n\r\n",
    00607       os.dwMajorVersion, os.dwMinorVersion, os.dwBuildNumber, os.szCSDVersion);
    00608   }
    00609
    00610   _file_crash_log = CreateFile(_T("crash.log"), GENERIC_WRITE, 0, NULL, CREATE_ALWAYS, 0, 0);
    00611
    00612   if (_file_crash_log != INVALID_HANDLE_VALUE) {
    00613     DWORD num_written;
    00614     WriteFile(_file_crash_log, _crash_msg, output - _crash_msg, &num_written, NULL);
    00615   }
    00616
    00617 #if !defined(_DEBUG)
    00618   HMODULE dbghelp = LoadLibrary(_T("dbghelp.dll"));
    00619   if (dbghelp != NULL) {
    00620     typedef BOOL (WINAPI *MiniDumpWriteDump_t)(HANDLE, DWORD, HANDLE,
    00621         MINIDUMP_TYPE,
    00622         CONST PMINIDUMP_EXCEPTION_INFORMATION,
    00623         CONST PMINIDUMP_USER_STREAM_INFORMATION,
    00624         CONST PMINIDUMP_CALLBACK_INFORMATION);
    00625     MiniDumpWriteDump_t funcMiniDumpWriteDump = (MiniDumpWriteDump_t)GetProcAddress(dbghelp, "MiniDumpWriteDump");
    00626     if (funcMiniDumpWriteDump != NULL) {
    00627       HANDLE file  = CreateFile(_T("crash.dmp"), GENERIC_WRITE, 0, NULL, CREATE_ALWAYS, 0, 0);
    00628       HANDLE proc  = GetCurrentProcess();
    00629       DWORD procid = GetCurrentProcessId();
    00630       MINIDUMP_EXCEPTION_INFORMATION mdei;
    00631       MINIDUMP_USER_STREAM userstream;
    00632       MINIDUMP_USER_STREAM_INFORMATION musi;
    00633       char msg[] = "****** Built on " __DATE__ " " __TIME__ ". ******";
    00634
    00635       userstream.Type        = LastReservedStream + 1;
    00636       userstream.Buffer      = msg;
    00637       userstream.BufferSize  = sizeof(msg);
    00638
    00639       musi.UserStreamCount   = 1;
    00640       musi.UserStreamArray   = &userstream;
    00641
    00642       mdei.ThreadId = GetCurrentThreadId();
    00643       mdei.ExceptionPointers  = ep;
    00644       mdei.ClientPointers     = false;
    00645
    00646       funcMiniDumpWriteDump(proc, procid, file, MiniDumpWithDataSegs, &mdei, &musi, NULL);
    00647     }
    00648     FreeLibrary(dbghelp);
    00649   }
    00650 #endif
    00651
    00652   if (_file_crash_log != INVALID_HANDLE_VALUE) {
    00653     GamelogPrint(&GamelogPrintCrashLogProc);
    00654     CloseHandle(_file_crash_log);
    00655   }
    00656
    00657   /* Close any possible log files */
    00658   CloseConsoleLogIfActive();
    00659
    00660   if (_safe_esp) {
    00661 #ifdef _M_AMD64
    00662     ep->ContextRecord->Rip = (DWORD64)Handler2;
    00663     ep->ContextRecord->Rsp = (DWORD64)_safe_esp;
    00664 #else
    00665     ep->ContextRecord->Eip = (DWORD)Handler2;
    00666     ep->ContextRecord->Esp = (DWORD)_safe_esp;
    00667 #endif
    00668     return EXCEPTION_CONTINUE_EXECUTION;
    00669   }
    00670
    00671
    00672   return EXCEPTION_EXECUTE_HANDLER;
    00673 }
    00674
    00675 #ifdef _M_AMD64
    00676 extern "C" void *_get_safe_esp();
    00677 #endif
    00678
    00679 static void Win32InitializeExceptions()
    00680 {
    00681 #ifdef _M_AMD64
    00682   _safe_esp = _get_safe_esp();
    00683 #else
    00684   _asm {
    00685     mov _safe_esp, esp
    00686   }
    00687 #endif
    00688
    00689   SetUnhandledExceptionFilter(ExceptionHandler);
    00690 }
    00691 #endif /* _MSC_VER */
    00692
    00693 /* Code below for windows version of opendir/readdir/closedir copied and
    00694  * modified from Jan Wassenberg's GPL implementation posted over at
    00695  * http://www.gamedev.net/community/forums/topic.asp?topic_id=364584&whichpage=1&#2398903 */
    00696
    00697 /* suballocator - satisfies most requests with a reusable static instance.
    00698  * this avoids hundreds of alloc/free which would fragment the heap.
    00699  * To guarantee concurrency, we fall back to malloc if the instance is
    00700  * already in use (it's important to avoid suprises since this is such a
    00701  * low-level routine). */
    00702 static DIR _global_dir;
    00703 static LONG _global_dir_is_in_use = false;
    00704
    00705 static inline DIR *dir_calloc()
    00706 {
    00707   DIR *d;
    00708
    00709   if (InterlockedExchange(&_global_dir_is_in_use, true) == (LONG)true) {
    00710     d = CallocT<DIR>(1);
    00711   } else {
    00712     d = &_global_dir;
    00713     memset(d, 0, sizeof(*d));
    00714   }
    00715   return d;
    00716 }
    00717
    00718 static inline void dir_free(DIR *d)
    00719 {
    00720   if (d == &_global_dir) {
    00721     _global_dir_is_in_use = (LONG)false;
    00722   } else {
    00723     free(d);
    00724   }
    00725 }
    00726
    00727 DIR *opendir(const TCHAR *path)
    00728 {
    00729   DIR *d;
    00730   UINT sem = SetErrorMode(SEM_FAILCRITICALERRORS); // disable 'no-disk' message box
    00731   DWORD fa = GetFileAttributes(path);
    00732
    00733   if ((fa != INVALID_FILE_ATTRIBUTES) && (fa & FILE_ATTRIBUTE_DIRECTORY)) {
    00734     d = dir_calloc();
    00735     if (d != NULL) {
    00736       TCHAR search_path[MAX_PATH];
    00737       bool slash = path[_tcslen(path) - 1] == '\\';
    00738
    00739       /* build search path for FindFirstFile, try not to append additional slashes
    00740        * as it throws Win9x off its groove for root directories */
    00741       _sntprintf(search_path, lengthof(search_path), _T("%s%s*"), path, slash ? _T("") : _T("\\"));
    00742       *lastof(search_path) = '\0';
    00743       d->hFind = FindFirstFile(search_path, &d->fd);
    00744
    00745       if (d->hFind != INVALID_HANDLE_VALUE ||
    00746           GetLastError() == ERROR_NO_MORE_FILES) { // the directory is empty
    00747         d->ent.dir = d;
    00748         d->at_first_entry = true;
    00749       } else {
    00750         dir_free(d);
    00751         d = NULL;
    00752       }
    00753     } else {
    00754       errno = ENOMEM;
    00755     }
    00756   } else {
    00757     /* path not found or not a directory */
    00758     d = NULL;
    00759     errno = ENOENT;
    00760   }
    00761
    00762   SetErrorMode(sem); // restore previous setting
    00763   return d;
    00764 }
    00765
    00766 struct dirent *readdir(DIR *d)
    00767 {
    00768   DWORD prev_err = GetLastError(); // avoid polluting last error
    00769
    00770   if (d->at_first_entry) {
    00771     /* the directory was empty when opened */
    00772     if (d->hFind == INVALID_HANDLE_VALUE) return NULL;
    00773     d->at_first_entry = false;
    00774   } else if (!FindNextFile(d->hFind, &d->fd)) { // determine cause and bail
    00775     if (GetLastError() == ERROR_NO_MORE_FILES) SetLastError(prev_err);
    00776     return NULL;
    00777   }
    00778
    00779   /* This entry has passed all checks; return information about it.
    00780    * (note: d_name is a pointer; see struct dirent definition) */
    00781   d->ent.d_name = d->fd.cFileName;
    00782   return &d->ent;
    00783 }
    00784
    00785 int closedir(DIR *d)
    00786 {
    00787   FindClose(d->hFind);
    00788   dir_free(d);
    00789   return 0;
    00790 }
    00791
    00792 bool FiosIsRoot(const char *file)
    00793 {
    00794   return file[3] == '\0'; // C:\...
    00795 }
    00796
    00797 void FiosGetDrives()
    00798 {
    00799 #if defined(WINCE)
    00800   /* WinCE only knows one drive: / */
    00801   FiosItem *fios = _fios_items.Append();
    00802   fios->type = FIOS_TYPE_DRIVE;
    00803   fios->mtime = 0;
    00804   snprintf(fios->name, lengthof(fios->name), PATHSEP "");
    00805   strecpy(fios->title, fios->name, lastof(fios->title));
    00806 #else
    00807   TCHAR drives[256];
    00808   const TCHAR *s;
    00809
    00810   GetLogicalDriveStrings(lengthof(drives), drives);
    00811   for (s = drives; *s != '\0';) {
    00812     FiosItem *fios = _fios_items.Append();
    00813     fios->type = FIOS_TYPE_DRIVE;
    00814     fios->mtime = 0;
    00815     snprintf(fios->name, lengthof(fios->name),  "%c:", s[0] & 0xFF);
    00816     strecpy(fios->title, fios->name, lastof(fios->title));
    00817     while (*s++ != '\0') { /* Nothing */ }
    00818   }
    00819 #endif
    00820 }
    00821
    00822 bool FiosIsValidFile(const char *path, const struct dirent *ent, struct stat *sb)
    00823 {
    00824   /* hectonanoseconds between Windows and POSIX epoch */
    00825   static const int64 posix_epoch_hns = 0x019DB1DED53E8000LL;
    00826   const WIN32_FIND_DATA *fd = &ent->dir->fd;
    00827
    00828   sb->st_size  = ((uint64) fd->nFileSizeHigh << 32) + fd->nFileSizeLow;
    00829   /* UTC FILETIME to seconds-since-1970 UTC
    00830    * we just have to subtract POSIX epoch and scale down to units of seconds.
    00831    * http://www.gamedev.net/community/forums/topic.asp?topic_id=294070&whichpage=1&#1860504
    00832    * XXX - not entirely correct, since filetimes on FAT aren't UTC but local,
    00833    * this won't entirely be correct, but we use the time only for comparsion. */
    00834   sb->st_mtime = (time_t)((*(uint64*)&fd->ftLastWriteTime - posix_epoch_hns) / 1E7);
    00835   sb->st_mode  = (fd->dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY)? S_IFDIR : S_IFREG;
    00836
    00837   return true;
    00838 }
    00839
    00840 bool FiosIsHiddenFile(const struct dirent *ent)
    00841 {
    00842   return (ent->dir->fd.dwFileAttributes & (FILE_ATTRIBUTE_HIDDEN | FILE_ATTRIBUTE_SYSTEM)) != 0;
    00843 }
    00844
    00845 bool FiosGetDiskFreeSpace(const char *path, uint64 *tot)
    00846 {
    00847   UINT sem = SetErrorMode(SEM_FAILCRITICALERRORS);  // disable 'no-disk' message box
    00848   bool retval = false;
    00849   TCHAR root[4];
    00850   DWORD spc, bps, nfc, tnc;
    00851
    00852   _sntprintf(root, lengthof(root), _T("%c:") _T(PATHSEP), path[0]);
    00853   if (tot != NULL && GetDiskFreeSpace(root, &spc, &bps, &nfc, &tnc)) {
    00854     *tot = ((spc * bps) * (uint64)nfc);
    00855     retval = true;
    00856   }
    00857
    00858   SetErrorMode(sem); // reset previous setting
    00859   return retval;
    00860 }
    00861
    00862 static int ParseCommandLine(char *line, char **argv, int max_argc)
    00863 {
    00864   int n = 0;
    00865
    00866   do {
    00867     /* skip whitespace */
    00868     while (*line == ' ' || *line == '\t') line++;
    00869
    00870     /* end? */
    00871     if (*line == '\0') break;
    00872
    00873     /* special handling when quoted */
    00874     if (*line == '"') {
    00875       argv[n++] = ++line;
    00876       while (*line != '"') {
    00877         if (*line == '\0') return n;
    00878         line++;
    00879       }
    00880     } else {
    00881       argv[n++] = line;
    00882       while (*line != ' ' && *line != '\t') {
    00883         if (*line == '\0') return n;
    00884         line++;
    00885       }
    00886     }
    00887     *line++ = '\0';
    00888   } while (n != max_argc);
    00889
    00890   return n;
    00891 }
    00892
    00893 void CreateConsole()
    00894 {
    00895 #if defined(WINCE)
    00896   /* WinCE doesn't support console stuff */
    00897 #else
    00898   HANDLE hand;
    00899   CONSOLE_SCREEN_BUFFER_INFO coninfo;
    00900
    00901   if (_has_console) return;
    00902   _has_console = true;
    00903
    00904   AllocConsole();
    00905
    00906   hand = GetStdHandle(STD_OUTPUT_HANDLE);
    00907   GetConsoleScreenBufferInfo(hand, &coninfo);
    00908   coninfo.dwSize.Y = 500;
    00909   SetConsoleScreenBufferSize(hand, coninfo.dwSize);
    00910
    00911   /* redirect unbuffered STDIN, STDOUT, STDERR to the console */
    00912 #if !defined(__CYGWIN__)
    00913   *stdout = *_fdopen( _open_osfhandle((intptr_t)hand, _O_TEXT), "w" );
    00914   *stdin = *_fdopen(_open_osfhandle((intptr_t)GetStdHandle(STD_INPUT_HANDLE), _O_TEXT), "r" );
    00915   *stderr = *_fdopen(_open_osfhandle((intptr_t)GetStdHandle(STD_ERROR_HANDLE), _O_TEXT), "w" );
    00916 #else
    00917   /* open_osfhandle is not in cygwin */
    00918   *stdout = *fdopen(1, "w" );
    00919   *stdin = *fdopen(0, "r" );
    00920   *stderr = *fdopen(2, "w" );
    00921 #endif
    00922
    00923   setvbuf(stdin, NULL, _IONBF, 0);
    00924   setvbuf(stdout, NULL, _IONBF, 0);
    00925   setvbuf(stderr, NULL, _IONBF, 0);
    00926 #endif
    00927 }
    00928
    00929 void ShowInfo(const char *str)
    00930 {
    00931   if (_has_console) {
    00932     fprintf(stderr, "%s\n", str);
    00933   } else {
    00934     bool old;
    00935 #if defined(UNICODE)
    00936     /* We need to put the text in a seperate buffer because the default
    00937      * buffer in MB_TO_WIDE might not be large enough (512 chars) */
    00938     wchar_t help_msgW[8192];
    00939 #endif
    00940     ReleaseCapture();
    00941     _left_button_clicked = _left_button_down = false;
    00942
    00943     old = MyShowCursor(true);
    00944     if (MessageBox(GetActiveWindow(), MB_TO_WIDE_BUFFER(str, help_msgW, lengthof(help_msgW)), _T("OpenTTD"), MB_ICONINFORMATION | MB_OKCANCEL) == IDCANCEL) {
    00945       CreateConsole();
    00946     }
    00947     MyShowCursor(old);
    00948   }
    00949 }
    00950
    00951 #if defined(WINCE)
    00952 int APIENTRY WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPTSTR lpCmdLine, int nCmdShow)
    00953 #else
    00954 int APIENTRY WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine, int nCmdShow)
    00955 #endif
    00956 {
    00957   int argc;
    00958   char *argv[64]; // max 64 command line arguments
    00959   char *cmdline;
    00960
    00961 #if !defined(UNICODE)
    00962   _codepage = GetACP(); // get system codepage as some kind of a default
    00963 #endif /* UNICODE */
    00964
    00965 #if defined(UNICODE)
    00966
    00967 #if !defined(WINCE)
    00968   /* Check if a win9x user started the win32 version */
    00969   if (HasBit(GetVersion(), 31)) usererror("This version of OpenTTD doesn't run on windows 95/98/ME.\nPlease download the win9x binary and try again.");
    00970 #endif
    00971
    00972   /* For UNICODE we need to convert the commandline to char* _AND_
    00973    * save it because argv[] points into this buffer and thus needs to
    00974    * be available between subsequent calls to FS2OTTD() */
    00975   char cmdlinebuf[MAX_PATH];
    00976 #endif /* UNICODE */
    00977
    00978   cmdline = WIDE_TO_MB_BUFFER(GetCommandLine(), cmdlinebuf, lengthof(cmdlinebuf));
    00979
    00980 #if defined(_DEBUG)
    00981   CreateConsole();
    00982 #endif
    00983
    00984 #if !defined(WINCE)
    00985   _set_error_mode(_OUT_TO_MSGBOX); // force assertion output to messagebox
    00986 #endif
    00987
    00988   /* setup random seed to something quite random */
    00989   SetRandomSeed(GetTickCount());
    00990
    00991   argc = ParseCommandLine(cmdline, argv, lengthof(argv));
    00992
    00993 #if defined(WIN32_EXCEPTION_TRACKER)
    00994   Win32InitializeExceptions();
    00995 #endif
    00996
    00997 #if defined(WIN32_EXCEPTION_TRACKER_DEBUG)
    00998   _try {
    00999     LONG WINAPI ExceptionHandler(EXCEPTION_POINTERS *ep);
    01000 #endif
    01001     ttd_main(argc, argv);
    01002
    01003 #if defined(WIN32_EXCEPTION_TRACKER_DEBUG)
    01004   } _except (ExceptionHandler(_exception_info())) {}
    01005 #endif
    01006
    01007   return 0;
    01008 }
    01009
    01010 #if defined(WINCE)
    01011 void GetCurrentDirectoryW(int length, wchar_t *path)
    01012 {
    01013   /* Get the name of this module */
    01014   GetModuleFileName(NULL, path, length);
    01015
    01016   /* Remove the executable name, this we call CurrentDir */
    01017   wchar_t *pDest = wcsrchr(path, '\\');
    01018   if (pDest != NULL) {
    01019     int result = pDest - path + 1;
    01020     path[result] = '\0';
    01021   }
    01022 }
    01023 #endif
    01024
    01025 char *getcwd(char *buf, size_t size)
    01026 {
    01027 #if defined(WINCE)
    01028   TCHAR path[MAX_PATH];
    01029   GetModuleFileName(NULL, path, MAX_PATH);
    01030   convert_from_fs(path, buf, size);
    01031   /* GetModuleFileName returns dir with file, so remove everything behind latest '\\' */
    01032   char *p = strrchr(buf, '\\');
    01033   if (p != NULL) *p = '\0';
    01034 #elif defined(UNICODE)
    01035   TCHAR path[MAX_PATH];
    01036   GetCurrentDirectory(MAX_PATH - 1, path);
    01037   convert_from_fs(path, buf, size);
    01038 #else
    01039   GetCurrentDirectory(size, buf);
    01040 #endif
    01041   return buf;
    01042 }
    01043
    01044
    01045 void DetermineBasePaths(const char *exe)
    01046 {
    01047   char tmp[MAX_PATH];
    01048   TCHAR path[MAX_PATH];
    01049 #ifdef WITH_PERSONAL_DIR
    01050   SHGetFolderPath(NULL, CSIDL_PERSONAL, NULL, SHGFP_TYPE_CURRENT, path);
    01051   strecpy(tmp, WIDE_TO_MB_BUFFER(path, tmp, lengthof(tmp)), lastof(tmp));
    01052   AppendPathSeparator(tmp, MAX_PATH);
    01053   ttd_strlcat(tmp, PERSONAL_DIR, MAX_PATH);
    01054   AppendPathSeparator(tmp, MAX_PATH);
    01055   _searchpaths[SP_PERSONAL_DIR] = strdup(tmp);
    01056
    01057   SHGetFolderPath(NULL, CSIDL_COMMON_DOCUMENTS, NULL, SHGFP_TYPE_CURRENT, path);
    01058   strecpy(tmp, WIDE_TO_MB_BUFFER(path, tmp, lengthof(tmp)), lastof(tmp));
    01059   AppendPathSeparator(tmp, MAX_PATH);
    01060   ttd_strlcat(tmp, PERSONAL_DIR, MAX_PATH);
    01061   AppendPathSeparator(tmp, MAX_PATH);
    01062   _searchpaths[SP_SHARED_DIR] = strdup(tmp);
    01063 #else
    01064   _searchpaths[SP_PERSONAL_DIR] = NULL;
    01065   _searchpaths[SP_SHARED_DIR]   = NULL;
    01066 #endif
    01067
    01068   /* Get the path to working directory of OpenTTD */
    01069   getcwd(tmp, lengthof(tmp));
    01070   AppendPathSeparator(tmp, MAX_PATH);
    01071   _searchpaths[SP_WORKING_DIR] = strdup(tmp);
    01072
    01073   if (!GetModuleFileName(NULL, path, lengthof(path))) {
    01074     DEBUG(misc, 0, "GetModuleFileName failed (%d)\n", GetLastError());
    01075     _searchpaths[SP_BINARY_DIR] = NULL;
    01076   } else {
    01077     TCHAR exec_dir[MAX_PATH];
    01078     _tcsncpy(path, MB_TO_WIDE_BUFFER(exe, path, lengthof(path)), lengthof(path));
    01079     if (!GetFullPathName(path, lengthof(exec_dir), exec_dir, NULL)) {
    01080       DEBUG(misc, 0, "GetFullPathName failed (%d)\n", GetLastError());
    01081       _searchpaths[SP_BINARY_DIR] = NULL;
    01082     } else {
    01083       strecpy(tmp, WIDE_TO_MB_BUFFER(exec_dir, tmp, lengthof(tmp)), lastof(tmp));
    01084       char *s = strrchr(tmp, PATHSEPCHAR);
    01085       *(s + 1) = '\0';
    01086       _searchpaths[SP_BINARY_DIR] = strdup(tmp);
    01087     }
    01088   }
    01089
    01090   _searchpaths[SP_INSTALLATION_DIR]       = NULL;
    01091   _searchpaths[SP_APPLICATION_BUNDLE_DIR] = NULL;
    01092 }
    01093
    01101 bool InsertTextBufferClipboard(Textbuf *tb)
    01102 {
    01103   HGLOBAL cbuf;
    01104   char utf8_buf[512];
    01105   const char *ptr;
    01106
    01107   WChar c;
    01108   uint16 width, length;
    01109
    01110   if (IsClipboardFormatAvailable(CF_UNICODETEXT)) {
    01111     OpenClipboard(NULL);
    01112     cbuf = GetClipboardData(CF_UNICODETEXT);
    01113
    01114     ptr = (const char*)GlobalLock(cbuf);
    01115     const char *ret = convert_from_fs((wchar_t*)ptr, utf8_buf, lengthof(utf8_buf));
    01116     GlobalUnlock(cbuf);
    01117     CloseClipboard();
    01118
    01119     if (*ret == '\0') return false;
    01120 #if !defined(UNICODE)
    01121   } else if (IsClipboardFormatAvailable(CF_TEXT)) {
    01122     OpenClipboard(NULL);
    01123     cbuf = GetClipboardData(CF_TEXT);
    01124
    01125     ptr = (const char*)GlobalLock(cbuf);
    01126     strecpy(utf8_buf, FS2OTTD(ptr), lastof(utf8_buf));
    01127
    01128     GlobalUnlock(cbuf);
    01129     CloseClipboard();
    01130 #endif /* UNICODE */
    01131   } else {
    01132     return false;
    01133   }
    01134
    01135   width = length = 0;
    01136
    01137   for (ptr = utf8_buf; (c = Utf8Consume(&ptr)) != '\0';) {
    01138     if (!IsPrintable(c)) break;
    01139
    01140     byte len = Utf8CharLen(c);
    01141     if (tb->size + length + len > tb->maxsize) break;
    01142
    01143     byte charwidth = GetCharacterWidth(FS_NORMAL, c);
    01144     if (tb->maxwidth != 0 && width + tb->width + charwidth > tb->maxwidth) break;
    01145
    01146     width += charwidth;
    01147     length += len;
    01148   }
    01149
    01150   if (length == 0) return false;
    01151
    01152   memmove(tb->buf + tb->caretpos + length, tb->buf + tb->caretpos, tb->size - tb->caretpos);
    01153   memcpy(tb->buf + tb->caretpos, utf8_buf, length);
    01154   tb->width += width;
    01155   tb->caretxoffs += width;
    01156
    01157   tb->size += length;
    01158   tb->caretpos += length;
    01159   assert(tb->size <= tb->maxsize);
    01160   tb->buf[tb->size - 1] = '\0'; // terminating zero
    01161
    01162   return true;
    01163 }
    01164
    01165
    01166 void CSleep(int milliseconds)
    01167 {
    01168   Sleep(milliseconds);
    01169 }
    01170
    01171
    01174 int64 GetTS()
    01175 {
    01176   static double freq;
    01177   __int64 value;
    01178   if (!freq) {
    01179     QueryPerformanceFrequency((LARGE_INTEGER*)&value);
    01180     freq = (double)1000000 / value;
    01181   }
    01182   QueryPerformanceCounter((LARGE_INTEGER*)&value);
    01183   return (__int64)(value * freq);
    01184 }
    01185
    01186
    01199 const char *FS2OTTD(const TCHAR *name)
    01200 {
    01201   static char utf8_buf[512];
    01202 #if defined(UNICODE)
    01203   return convert_from_fs(name, utf8_buf, lengthof(utf8_buf));
    01204 #else
    01205   char *s = utf8_buf;
    01206
    01207   for (; *name != '\0'; name++) {
    01208     wchar_t w;
    01209     int len = MultiByteToWideChar(_codepage, 0, name, 1, &w, 1);
    01210     if (len != 1) {
    01211       DEBUG(misc, 0, "[utf8] M2W error converting '%c'. Errno %d", *name, GetLastError());
    01212       continue;
    01213     }
    01214
    01215     if (s + Utf8CharLen(w) >= lastof(utf8_buf)) break;
    01216     s += Utf8Encode(s, w);
    01217   }
    01218
    01219   *s = '\0';
    01220   return utf8_buf;
    01221 #endif /* UNICODE */
    01222 }
    01223
    01236 const TCHAR *OTTD2FS(const char *name)
    01237 {
    01238   static TCHAR system_buf[512];
    01239 #if defined(UNICODE)
    01240   return convert_to_fs(name, system_buf, lengthof(system_buf));
    01241 #else
    01242   char *s = system_buf;
    01243
    01244   for (WChar c; (c = Utf8Consume(&name)) != '\0';) {
    01245     if (s >= lastof(system_buf)) break;
    01246
    01247     char mb;
    01248     int len = WideCharToMultiByte(_codepage, 0, (wchar_t*)&c, 1, &mb, 1, NULL, NULL);
    01249     if (len != 1) {
    01250       DEBUG(misc, 0, "[utf8] W2M error converting '0x%X'. Errno %d", c, GetLastError());
    01251       continue;
    01252     }
    01253
    01254     *s++ = mb;
    01255   }
    01256
    01257   *s = '\0';
    01258   return system_buf;
    01259 #endif /* UNICODE */
    01260 }
    01261
    01262
    01269 char *convert_from_fs(const wchar_t *name, char *utf8_buf, size_t buflen)
    01270 {
    01271   int len = WideCharToMultiByte(CP_UTF8, 0, name, -1, utf8_buf, (int)buflen, NULL, NULL);
    01272   if (len == 0) {
    01273     DEBUG(misc, 0, "[utf8] W2M error converting wide-string. Errno %d", GetLastError());
    01274     utf8_buf[0] = '\0';
    01275   }
    01276
    01277   return utf8_buf;
    01278 }
    01279
    01280
    01288 wchar_t *convert_to_fs(const char *name, wchar_t *utf16_buf, size_t buflen)
    01289 {
    01290   int len = MultiByteToWideChar(CP_UTF8, 0, name, -1, utf16_buf, (int)buflen);
    01291   if (len == 0) {
    01292     DEBUG(misc, 0, "[utf8] M2W error converting '%s'. Errno %d", name, GetLastError());
    01293     utf16_buf[0] = '\0';
    01294   }
    01295
    01296   return utf16_buf;
    01297 }
    01298
    01303 HRESULT OTTDSHGetFolderPath(HWND hwnd, int csidl, HANDLE hToken, DWORD dwFlags, LPTSTR pszPath)
    01304 {
    01305   static HRESULT (WINAPI *SHGetFolderPath)(HWND, int, HANDLE, DWORD, LPTSTR) = NULL;
    01306   static bool first_time = true;
    01307
    01308   /* We only try to load the library one time; if it fails, it fails */
    01309   if (first_time) {
    01310 #if defined(UNICODE)
    01311 # define W(x) x "W"
    01312 #else
    01313 # define W(x) x "A"
    01314 #endif
    01315     if (!LoadLibraryList((Function*)&SHGetFolderPath, "SHFolder.dll\0" W("SHGetFolderPath") "\0\0")) {
    01316       DEBUG(misc, 0, "Unable to load " W("SHGetFolderPath") "from SHFolder.dll");
    01317     }
    01318 #undef W
    01319     first_time = false;
    01320   }
    01321
    01322   if (SHGetFolderPath != NULL) return SHGetFolderPath(hwnd, csidl, hToken, dwFlags, pszPath);
    01323
    01324   /* SHGetFolderPath doesn't exist, try a more conservative approach,
    01325    * eg environment variables. This is only included for legacy modes
    01326    * MSDN says: that 'pszPath' is a "Pointer to a null-terminated string of
    01327    * length MAX_PATH which will receive the path" so let's assume that
    01328    * Windows 95 with Internet Explorer 5.0, Windows 98 with Internet Explorer 5.0,
    01329    * Windows 98 Second Edition (SE), Windows NT 4.0 with Internet Explorer 5.0,
    01330    * Windows NT 4.0 with Service Pack 4 (SP4) */
    01331   {
    01332     DWORD ret;
    01333     switch (csidl) {
    01334       case CSIDL_FONTS: // Get the system font path, eg %WINDIR%\Fonts
    01335         ret = GetEnvironmentVariable(_T("WINDIR"), pszPath, MAX_PATH);
    01336         if (ret == 0) break;
    01337         _tcsncat(pszPath, _T("\\Fonts"), MAX_PATH);
    01338
    01339         return (HRESULT)0;
    01340         break;
    01341       /* XXX - other types to go here when needed... */
    01342     }
    01343   }
    01344
    01345   return E_INVALIDARG;
    01346 }
    01347
    01349 const char *GetCurrentLocale(const char *)
    01350 {
    01351   char lang[9], country[9];
    01352   if (GetLocaleInfoA(LOCALE_USER_DEFAULT, LOCALE_SISO639LANGNAME, lang, lengthof(lang)) == 0 ||
    01353       GetLocaleInfoA(LOCALE_USER_DEFAULT, LOCALE_SISO3166CTRYNAME, country, lengthof(country)) == 0) {
    01354     /* Unable to retrieve the locale. */
    01355     return NULL;
    01356   }
    01357   /* Format it as 'en_us'. */
    01358   static char retbuf[6] = {lang[0], lang[1], '_', country[0], country[1], 0};
    01359   return retbuf;
    01360 }