# win32.cpp

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    00001 /* $Id$ */
    00002
    00003 /*
    00004  * This file is part of OpenTTD.
    00005  * OpenTTD is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, version 2.
    00006  * OpenTTD is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
    00007  * See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with OpenTTD. If not, see <http://www.gnu.org/licenses/>.
    00008  */
    00009
    00012 #include "../../stdafx.h"
    00013 #include "../../debug.h"
    00014 #include "../../gfx_func.h"
    00015 #include "../../textbuf_gui.h"
    00016 #include "../../fileio_func.h"
    00017 #include "../../fios.h"
    00018 #include <windows.h>
    00019 #include <fcntl.h>
    00020 #include <shlobj.h> /* SHGetFolderPath */
    00021 #include "win32.h"
    00022 #include "../../core/alloc_func.hpp"
    00023 #include "../../openttd.h"
    00024 #include "../../core/random_func.hpp"
    00025 #include "../../string_func.h"
    00026 #include "../../crashlog.h"
    00027 #include <errno.h>
    00028 #include <sys/stat.h>
    00029
    00030 static bool _has_console;
    00031
    00032 static bool cursor_visible = true;
    00033
    00034 bool MyShowCursor(bool show)
    00035 {
    00036   if (cursor_visible == show) return show;
    00037
    00038   cursor_visible = show;
    00039   ShowCursor(show);
    00040
    00041   return !show;
    00042 }
    00043
    00049 bool LoadLibraryList(Function proc[], const char *dll)
    00050 {
    00051   while (*dll != '\0') {
    00052     HMODULE lib;
    00053     lib = LoadLibrary(MB_TO_WIDE(dll));
    00054
    00055     if (lib == NULL) return false;
    00056     for (;;) {
    00057       FARPROC p;
    00058
    00059       while (*dll++ != '\0') { /* Nothing */ }
    00060       if (*dll == '\0') break;
    00061 #if defined(WINCE)
    00062       p = GetProcAddress(lib, MB_TO_WIDE(dll));
    00063 #else
    00064       p = GetProcAddress(lib, dll);
    00065 #endif
    00066       if (p == NULL) return false;
    00067       *proc++ = (Function)p;
    00068     }
    00069     dll++;
    00070   }
    00071   return true;
    00072 }
    00073
    00074 void ShowOSErrorBox(const char *buf, bool system)
    00075 {
    00076   MyShowCursor(true);
    00077   MessageBox(GetActiveWindow(), MB_TO_WIDE(buf), _T("Error!"), MB_ICONSTOP);
    00078 }
    00079
    00080 /* Code below for windows version of opendir/readdir/closedir copied and
    00081  * modified from Jan Wassenberg's GPL implementation posted over at
    00082  * http://www.gamedev.net/community/forums/topic.asp?topic_id=364584&whichpage=1&#2398903 */
    00083
    00084 /* suballocator - satisfies most requests with a reusable static instance.
    00085  * this avoids hundreds of alloc/free which would fragment the heap.
    00086  * To guarantee concurrency, we fall back to malloc if the instance is
    00087  * already in use (it's important to avoid surprises since this is such a
    00088  * low-level routine). */
    00089 static DIR _global_dir;
    00090 static LONG _global_dir_is_in_use = false;
    00091
    00092 static inline DIR *dir_calloc()
    00093 {
    00094   DIR *d;
    00095
    00096   if (InterlockedExchange(&_global_dir_is_in_use, true) == (LONG)true) {
    00097     d = CallocT<DIR>(1);
    00098   } else {
    00099     d = &_global_dir;
    00100     memset(d, 0, sizeof(*d));
    00101   }
    00102   return d;
    00103 }
    00104
    00105 static inline void dir_free(DIR *d)
    00106 {
    00107   if (d == &_global_dir) {
    00108     _global_dir_is_in_use = (LONG)false;
    00109   } else {
    00110     free(d);
    00111   }
    00112 }
    00113
    00114 DIR *opendir(const TCHAR *path)
    00115 {
    00116   DIR *d;
    00117   UINT sem = SetErrorMode(SEM_FAILCRITICALERRORS); // disable 'no-disk' message box
    00118   DWORD fa = GetFileAttributes(path);
    00119
    00120   if ((fa != INVALID_FILE_ATTRIBUTES) && (fa & FILE_ATTRIBUTE_DIRECTORY)) {
    00121     d = dir_calloc();
    00122     if (d != NULL) {
    00123       TCHAR search_path[MAX_PATH];
    00124       bool slash = path[_tcslen(path) - 1] == '\\';
    00125
    00126       /* build search path for FindFirstFile, try not to append additional slashes
    00127        * as it throws Win9x off its groove for root directories */
    00128       _sntprintf(search_path, lengthof(search_path), _T("%s%s*"), path, slash ? _T("") : _T("\\"));
    00129       *lastof(search_path) = '\0';
    00130       d->hFind = FindFirstFile(search_path, &d->fd);
    00131
    00132       if (d->hFind != INVALID_HANDLE_VALUE ||
    00133           GetLastError() == ERROR_NO_MORE_FILES) { // the directory is empty
    00134         d->ent.dir = d;
    00135         d->at_first_entry = true;
    00136       } else {
    00137         dir_free(d);
    00138         d = NULL;
    00139       }
    00140     } else {
    00141       errno = ENOMEM;
    00142     }
    00143   } else {
    00144     /* path not found or not a directory */
    00145     d = NULL;
    00146     errno = ENOENT;
    00147   }
    00148
    00149   SetErrorMode(sem); // restore previous setting
    00150   return d;
    00151 }
    00152
    00153 struct dirent *readdir(DIR *d)
    00154 {
    00155   DWORD prev_err = GetLastError(); // avoid polluting last error
    00156
    00157   if (d->at_first_entry) {
    00158     /* the directory was empty when opened */
    00159     if (d->hFind == INVALID_HANDLE_VALUE) return NULL;
    00160     d->at_first_entry = false;
    00161   } else if (!FindNextFile(d->hFind, &d->fd)) { // determine cause and bail
    00162     if (GetLastError() == ERROR_NO_MORE_FILES) SetLastError(prev_err);
    00163     return NULL;
    00164   }
    00165
    00166   /* This entry has passed all checks; return information about it.
    00167    * (note: d_name is a pointer; see struct dirent definition) */
    00168   d->ent.d_name = d->fd.cFileName;
    00169   return &d->ent;
    00170 }
    00171
    00172 int closedir(DIR *d)
    00173 {
    00174   FindClose(d->hFind);
    00175   dir_free(d);
    00176   return 0;
    00177 }
    00178
    00179 bool FiosIsRoot(const char *file)
    00180 {
    00181   return file[3] == '\0'; // C:\...
    00182 }
    00183
    00184 void FiosGetDrives()
    00185 {
    00186 #if defined(WINCE)
    00187   /* WinCE only knows one drive: / */
    00188   FiosItem *fios = _fios_items.Append();
    00189   fios->type = FIOS_TYPE_DRIVE;
    00190   fios->mtime = 0;
    00191   snprintf(fios->name, lengthof(fios->name), PATHSEP "");
    00192   strecpy(fios->title, fios->name, lastof(fios->title));
    00193 #else
    00194   TCHAR drives[256];
    00195   const TCHAR *s;
    00196
    00197   GetLogicalDriveStrings(lengthof(drives), drives);
    00198   for (s = drives; *s != '\0';) {
    00199     FiosItem *fios = _fios_items.Append();
    00200     fios->type = FIOS_TYPE_DRIVE;
    00201     fios->mtime = 0;
    00202     snprintf(fios->name, lengthof(fios->name),  "%c:", s[0] & 0xFF);
    00203     strecpy(fios->title, fios->name, lastof(fios->title));
    00204     while (*s++ != '\0') { /* Nothing */ }
    00205   }
    00206 #endif
    00207 }
    00208
    00209 bool FiosIsValidFile(const char *path, const struct dirent *ent, struct stat *sb)
    00210 {
    00211   /* hectonanoseconds between Windows and POSIX epoch */
    00212   static const int64 posix_epoch_hns = 0x019DB1DED53E8000LL;
    00213   const WIN32_FIND_DATA *fd = &ent->dir->fd;
    00214
    00215   sb->st_size  = ((uint64) fd->nFileSizeHigh << 32) + fd->nFileSizeLow;
    00216   /* UTC FILETIME to seconds-since-1970 UTC
    00217    * we just have to subtract POSIX epoch and scale down to units of seconds.
    00218    * http://www.gamedev.net/community/forums/topic.asp?topic_id=294070&whichpage=1&#1860504
    00219    * XXX - not entirely correct, since filetimes on FAT aren't UTC but local,
    00220    * this won't entirely be correct, but we use the time only for comparsion. */
    00221   sb->st_mtime = (time_t)((*(uint64*)&fd->ftLastWriteTime - posix_epoch_hns) / 1E7);
    00222   sb->st_mode  = (fd->dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY)? S_IFDIR : S_IFREG;
    00223
    00224   return true;
    00225 }
    00226
    00227 bool FiosIsHiddenFile(const struct dirent *ent)
    00228 {
    00229   return (ent->dir->fd.dwFileAttributes & (FILE_ATTRIBUTE_HIDDEN | FILE_ATTRIBUTE_SYSTEM)) != 0;
    00230 }
    00231
    00232 bool FiosGetDiskFreeSpace(const char *path, uint64 *tot)
    00233 {
    00234   UINT sem = SetErrorMode(SEM_FAILCRITICALERRORS);  // disable 'no-disk' message box
    00235   bool retval = false;
    00236   TCHAR root[4];
    00237   DWORD spc, bps, nfc, tnc;
    00238
    00239   _sntprintf(root, lengthof(root), _T("%c:") _T(PATHSEP), path[0]);
    00240   if (tot != NULL && GetDiskFreeSpace(root, &spc, &bps, &nfc, &tnc)) {
    00241     *tot = ((spc * bps) * (uint64)nfc);
    00242     retval = true;
    00243   }
    00244
    00245   SetErrorMode(sem); // reset previous setting
    00246   return retval;
    00247 }
    00248
    00249 static int ParseCommandLine(char *line, char **argv, int max_argc)
    00250 {
    00251   int n = 0;
    00252
    00253   do {
    00254     /* skip whitespace */
    00255     while (*line == ' ' || *line == '\t') line++;
    00256
    00257     /* end? */
    00258     if (*line == '\0') break;
    00259
    00260     /* special handling when quoted */
    00261     if (*line == '"') {
    00262       argv[n++] = ++line;
    00263       while (*line != '"') {
    00264         if (*line == '\0') return n;
    00265         line++;
    00266       }
    00267     } else {
    00268       argv[n++] = line;
    00269       while (*line != ' ' && *line != '\t') {
    00270         if (*line == '\0') return n;
    00271         line++;
    00272       }
    00273     }
    00274     *line++ = '\0';
    00275   } while (n != max_argc);
    00276
    00277   return n;
    00278 }
    00279
    00280 void CreateConsole()
    00281 {
    00282 #if defined(WINCE)
    00283   /* WinCE doesn't support console stuff */
    00284 #else
    00285   HANDLE hand;
    00286   CONSOLE_SCREEN_BUFFER_INFO coninfo;
    00287
    00288   if (_has_console) return;
    00289   _has_console = true;
    00290
    00291   AllocConsole();
    00292
    00293   hand = GetStdHandle(STD_OUTPUT_HANDLE);
    00294   GetConsoleScreenBufferInfo(hand, &coninfo);
    00295   coninfo.dwSize.Y = 500;
    00296   SetConsoleScreenBufferSize(hand, coninfo.dwSize);
    00297
    00298   /* redirect unbuffered STDIN, STDOUT, STDERR to the console */
    00299 #if !defined(__CYGWIN__)
    00300   *stdout = *_fdopen( _open_osfhandle((intptr_t)hand, _O_TEXT), "w" );
    00301   *stdin = *_fdopen(_open_osfhandle((intptr_t)GetStdHandle(STD_INPUT_HANDLE), _O_TEXT), "r" );
    00302   *stderr = *_fdopen(_open_osfhandle((intptr_t)GetStdHandle(STD_ERROR_HANDLE), _O_TEXT), "w" );
    00303 #else
    00304   /* open_osfhandle is not in cygwin */
    00305   *stdout = *fdopen(1, "w" );
    00306   *stdin = *fdopen(0, "r" );
    00307   *stderr = *fdopen(2, "w" );
    00308 #endif
    00309
    00310   setvbuf(stdin, NULL, _IONBF, 0);
    00311   setvbuf(stdout, NULL, _IONBF, 0);
    00312   setvbuf(stderr, NULL, _IONBF, 0);
    00313 #endif
    00314 }
    00315
    00317 static const char *_help_msg;
    00318
    00320 static INT_PTR CALLBACK HelpDialogFunc(HWND wnd, UINT msg, WPARAM wParam, LPARAM lParam)
    00321 {
    00322   switch (msg) {
    00323     case WM_INITDIALOG: {
    00324       char help_msg[8192];
    00325       const char *p = _help_msg;
    00326       char *q = help_msg;
    00327       while (q != lastof(help_msg) && *p != '\0') {
    00328         if (*p == '\n') {
    00329           *q++ = '\r';
    00330           if (q == lastof(help_msg)) {
    00331             q[-1] = '\0';
    00332             break;
    00333           }
    00334         }
    00335         *q++ = *p++;
    00336       }
    00337       *q = '\0';
    00338 #if defined(UNICODE)
    00339       /* We need to put the text in a seperate buffer because the default
    00340        * buffer in MB_TO_WIDE might not be large enough (512 chars) */
    00341       wchar_t help_msgW[8192];
    00342 #endif
    00343       SetDlgItemText(wnd, 11, MB_TO_WIDE_BUFFER(help_msg, help_msgW, lengthof(help_msgW)));
    00344       SendDlgItemMessage(wnd, 11, WM_SETFONT, (WPARAM)GetStockObject(ANSI_FIXED_FONT), FALSE);
    00345     } return TRUE;
    00346
    00347     case WM_COMMAND:
    00348       if (wParam == 12) ExitProcess(0);
    00349       return TRUE;
    00350     case WM_CLOSE:
    00351       ExitProcess(0);
    00352   }
    00353
    00354   return FALSE;
    00355 }
    00356
    00357 void ShowInfo(const char *str)
    00358 {
    00359   if (_has_console) {
    00360     fprintf(stderr, "%s\n", str);
    00361   } else {
    00362     bool old;
    00363     ReleaseCapture();
    00364     _left_button_clicked = _left_button_down = false;
    00365
    00366     old = MyShowCursor(true);
    00367     if (strlen(str) > 2048) {
    00368       /* The minimum length of the help message is 2048. Other messages sent via
    00369        * ShowInfo are much shorter, or so long they need this way of displaying
    00370        * them anyway. */
    00371       _help_msg = str;
    00372       DialogBox(GetModuleHandle(NULL), MAKEINTRESOURCE(101), NULL, HelpDialogFunc);
    00373     } else {
    00374 #if defined(UNICODE)
    00375       /* We need to put the text in a seperate buffer because the default
    00376        * buffer in MB_TO_WIDE might not be large enough (512 chars) */
    00377       wchar_t help_msgW[8192];
    00378 #endif
    00379       if (MessageBox(GetActiveWindow(), MB_TO_WIDE_BUFFER(str, help_msgW, lengthof(help_msgW)), _T("OpenTTD"), MB_ICONINFORMATION | MB_OKCANCEL) == IDCANCEL) {
    00380         CreateConsole();
    00381       }
    00382     }
    00383     MyShowCursor(old);
    00384   }
    00385 }
    00386
    00387 #if defined(WINCE)
    00388 int APIENTRY WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPTSTR lpCmdLine, int nCmdShow)
    00389 #else
    00390 int APIENTRY WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine, int nCmdShow)
    00391 #endif
    00392 {
    00393   int argc;
    00394   char *argv[64]; // max 64 command line arguments
    00395   char *cmdline;
    00396
    00397 #if !defined(UNICODE)
    00398   _codepage = GetACP(); // get system codepage as some kind of a default
    00399 #endif /* UNICODE */
    00400
    00401   CrashLog::InitialiseCrashLog();
    00402
    00403 #if defined(UNICODE)
    00404
    00405 #if !defined(WINCE)
    00406   /* Check if a win9x user started the win32 version */
    00407   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.");
    00408 #endif
    00409
    00410   /* For UNICODE we need to convert the commandline to char* _AND_
    00411    * save it because argv[] points into this buffer and thus needs to
    00412    * be available between subsequent calls to FS2OTTD() */
    00413   char cmdlinebuf[MAX_PATH];
    00414 #endif /* UNICODE */
    00415
    00416   cmdline = WIDE_TO_MB_BUFFER(GetCommandLine(), cmdlinebuf, lengthof(cmdlinebuf));
    00417
    00418 #if defined(_DEBUG)
    00419   CreateConsole();
    00420 #endif
    00421
    00422 #if !defined(WINCE)
    00423   _set_error_mode(_OUT_TO_MSGBOX); // force assertion output to messagebox
    00424 #endif
    00425
    00426   /* setup random seed to something quite random */
    00427   SetRandomSeed(GetTickCount());
    00428
    00429   argc = ParseCommandLine(cmdline, argv, lengthof(argv));
    00430
    00431   ttd_main(argc, argv);
    00432   return 0;
    00433 }
    00434
    00435 #if defined(WINCE)
    00436 void GetCurrentDirectoryW(int length, wchar_t *path)
    00437 {
    00438   /* Get the name of this module */
    00439   GetModuleFileName(NULL, path, length);
    00440
    00441   /* Remove the executable name, this we call CurrentDir */
    00442   wchar_t *pDest = wcsrchr(path, '\\');
    00443   if (pDest != NULL) {
    00444     int result = pDest - path + 1;
    00445     path[result] = '\0';
    00446   }
    00447 }
    00448 #endif
    00449
    00450 char *getcwd(char *buf, size_t size)
    00451 {
    00452 #if defined(WINCE)
    00453   TCHAR path[MAX_PATH];
    00454   GetModuleFileName(NULL, path, MAX_PATH);
    00455   convert_from_fs(path, buf, size);
    00456   /* GetModuleFileName returns dir with file, so remove everything behind latest '\\' */
    00457   char *p = strrchr(buf, '\\');
    00458   if (p != NULL) *p = '\0';
    00459 #elif defined(UNICODE)
    00460   TCHAR path[MAX_PATH];
    00461   GetCurrentDirectory(MAX_PATH - 1, path);
    00462   convert_from_fs(path, buf, size);
    00463 #else
    00464   GetCurrentDirectory(size, buf);
    00465 #endif
    00466   return buf;
    00467 }
    00468
    00469
    00470 void DetermineBasePaths(const char *exe)
    00471 {
    00472   char tmp[MAX_PATH];
    00473   TCHAR path[MAX_PATH];
    00474 #ifdef WITH_PERSONAL_DIR
    00475   SHGetFolderPath(NULL, CSIDL_PERSONAL, NULL, SHGFP_TYPE_CURRENT, path);
    00476   strecpy(tmp, WIDE_TO_MB_BUFFER(path, tmp, lengthof(tmp)), lastof(tmp));
    00477   AppendPathSeparator(tmp, MAX_PATH);
    00478   ttd_strlcat(tmp, PERSONAL_DIR, MAX_PATH);
    00479   AppendPathSeparator(tmp, MAX_PATH);
    00480   _searchpaths[SP_PERSONAL_DIR] = strdup(tmp);
    00481
    00482   SHGetFolderPath(NULL, CSIDL_COMMON_DOCUMENTS, NULL, SHGFP_TYPE_CURRENT, path);
    00483   strecpy(tmp, WIDE_TO_MB_BUFFER(path, tmp, lengthof(tmp)), lastof(tmp));
    00484   AppendPathSeparator(tmp, MAX_PATH);
    00485   ttd_strlcat(tmp, PERSONAL_DIR, MAX_PATH);
    00486   AppendPathSeparator(tmp, MAX_PATH);
    00487   _searchpaths[SP_SHARED_DIR] = strdup(tmp);
    00488 #else
    00489   _searchpaths[SP_PERSONAL_DIR] = NULL;
    00490   _searchpaths[SP_SHARED_DIR]   = NULL;
    00491 #endif
    00492
    00493   /* Get the path to working directory of OpenTTD */
    00494   getcwd(tmp, lengthof(tmp));
    00495   AppendPathSeparator(tmp, MAX_PATH);
    00496   _searchpaths[SP_WORKING_DIR] = strdup(tmp);
    00497
    00498   if (!GetModuleFileName(NULL, path, lengthof(path))) {
    00499     DEBUG(misc, 0, "GetModuleFileName failed (%lu)\n", GetLastError());
    00500     _searchpaths[SP_BINARY_DIR] = NULL;
    00501   } else {
    00502     TCHAR exec_dir[MAX_PATH];
    00503     _tcsncpy(path, MB_TO_WIDE_BUFFER(exe, path, lengthof(path)), lengthof(path));
    00504     if (!GetFullPathName(path, lengthof(exec_dir), exec_dir, NULL)) {
    00505       DEBUG(misc, 0, "GetFullPathName failed (%lu)\n", GetLastError());
    00506       _searchpaths[SP_BINARY_DIR] = NULL;
    00507     } else {
    00508       strecpy(tmp, WIDE_TO_MB_BUFFER(exec_dir, tmp, lengthof(tmp)), lastof(tmp));
    00509       char *s = strrchr(tmp, PATHSEPCHAR);
    00510       *(s + 1) = '\0';
    00511       _searchpaths[SP_BINARY_DIR] = strdup(tmp);
    00512     }
    00513   }
    00514
    00515   _searchpaths[SP_INSTALLATION_DIR]       = NULL;
    00516   _searchpaths[SP_APPLICATION_BUNDLE_DIR] = NULL;
    00517 }
    00518
    00519
    00520 bool GetClipboardContents(char *buffer, size_t buff_len)
    00521 {
    00522   HGLOBAL cbuf;
    00523   const char *ptr;
    00524
    00525   if (IsClipboardFormatAvailable(CF_UNICODETEXT)) {
    00526     OpenClipboard(NULL);
    00527     cbuf = GetClipboardData(CF_UNICODETEXT);
    00528
    00529     ptr = (const char*)GlobalLock(cbuf);
    00530     const char *ret = convert_from_fs((wchar_t*)ptr, buffer, buff_len);
    00531     GlobalUnlock(cbuf);
    00532     CloseClipboard();
    00533
    00534     if (*ret == '\0') return false;
    00535 #if !defined(UNICODE)
    00536   } else if (IsClipboardFormatAvailable(CF_TEXT)) {
    00537     OpenClipboard(NULL);
    00538     cbuf = GetClipboardData(CF_TEXT);
    00539
    00540     ptr = (const char*)GlobalLock(cbuf);
    00541     ttd_strlcpy(buffer, FS2OTTD(ptr), buff_len);
    00542
    00543     GlobalUnlock(cbuf);
    00544     CloseClipboard();
    00545 #endif /* UNICODE */
    00546   } else {
    00547     return false;
    00548   }
    00549
    00550   return true;
    00551 }
    00552
    00553
    00554 void CSleep(int milliseconds)
    00555 {
    00556   Sleep(milliseconds);
    00557 }
    00558
    00559
    00573 const char *FS2OTTD(const TCHAR *name)
    00574 {
    00575   static char utf8_buf[512];
    00576 #if defined(UNICODE)
    00577   return convert_from_fs(name, utf8_buf, lengthof(utf8_buf));
    00578 #else
    00579   char *s = utf8_buf;
    00580
    00581   for (; *name != '\0'; name++) {
    00582     wchar_t w;
    00583     int len = MultiByteToWideChar(_codepage, 0, name, 1, &w, 1);
    00584     if (len != 1) {
    00585       DEBUG(misc, 0, "[utf8] M2W error converting '%c'. Errno %lu", *name, GetLastError());
    00586       continue;
    00587     }
    00588
    00589     if (s + Utf8CharLen(w) >= lastof(utf8_buf)) break;
    00590     s += Utf8Encode(s, w);
    00591   }
    00592
    00593   *s = '\0';
    00594   return utf8_buf;
    00595 #endif /* UNICODE */
    00596 }
    00597
    00611 const TCHAR *OTTD2FS(const char *name)
    00612 {
    00613   static TCHAR system_buf[512];
    00614 #if defined(UNICODE)
    00615   return convert_to_fs(name, system_buf, lengthof(system_buf));
    00616 #else
    00617   char *s = system_buf;
    00618
    00619   for (WChar c; (c = Utf8Consume(&name)) != '\0';) {
    00620     if (s >= lastof(system_buf)) break;
    00621
    00622     char mb;
    00623     int len = WideCharToMultiByte(_codepage, 0, (wchar_t*)&c, 1, &mb, 1, NULL, NULL);
    00624     if (len != 1) {
    00625       DEBUG(misc, 0, "[utf8] W2M error converting '0x%X'. Errno %lu", c, GetLastError());
    00626       continue;
    00627     }
    00628
    00629     *s++ = mb;
    00630   }
    00631
    00632   *s = '\0';
    00633   return system_buf;
    00634 #endif /* UNICODE */
    00635 }
    00636
    00637
    00646 char *convert_from_fs(const wchar_t *name, char *utf8_buf, size_t buflen)
    00647 {
    00648   int len = WideCharToMultiByte(CP_UTF8, 0, name, -1, utf8_buf, (int)buflen, NULL, NULL);
    00649   if (len == 0) {
    00650     DEBUG(misc, 0, "[utf8] W2M error converting wide-string. Errno %lu", GetLastError());
    00651     utf8_buf[0] = '\0';
    00652   }
    00653
    00654   return utf8_buf;
    00655 }
    00656
    00657
    00667 wchar_t *convert_to_fs(const char *name, wchar_t *utf16_buf, size_t buflen)
    00668 {
    00669   int len = MultiByteToWideChar(CP_UTF8, 0, name, -1, utf16_buf, (int)buflen);
    00670   if (len == 0) {
    00671     DEBUG(misc, 0, "[utf8] M2W error converting '%s'. Errno %lu", name, GetLastError());
    00672     utf16_buf[0] = '\0';
    00673   }
    00674
    00675   return utf16_buf;
    00676 }
    00677
    00684 HRESULT OTTDSHGetFolderPath(HWND hwnd, int csidl, HANDLE hToken, DWORD dwFlags, LPTSTR pszPath)
    00685 {
    00686   static HRESULT (WINAPI *SHGetFolderPath)(HWND, int, HANDLE, DWORD, LPTSTR) = NULL;
    00687   static bool first_time = true;
    00688
    00689   /* We only try to load the library one time; if it fails, it fails */
    00690   if (first_time) {
    00691 #if defined(UNICODE)
    00692 # define W(x) x "W"
    00693 #else
    00694 # define W(x) x "A"
    00695 #endif
    00696     if (!LoadLibraryList((Function*)&SHGetFolderPath, "SHFolder.dll\0" W("SHGetFolderPath") "\0\0")) {
    00697       DEBUG(misc, 0, "Unable to load " W("SHGetFolderPath") "from SHFolder.dll");
    00698     }
    00699 #undef W
    00700     first_time = false;
    00701   }
    00702
    00703   if (SHGetFolderPath != NULL) return SHGetFolderPath(hwnd, csidl, hToken, dwFlags, pszPath);
    00704
    00705   /* SHGetFolderPath doesn't exist, try a more conservative approach,
    00706    * eg environment variables. This is only included for legacy modes
    00707    * MSDN says: that 'pszPath' is a "Pointer to a null-terminated string of
    00708    * length MAX_PATH which will receive the path" so let's assume that
    00709    * Windows 95 with Internet Explorer 5.0, Windows 98 with Internet Explorer 5.0,
    00710    * Windows 98 Second Edition (SE), Windows NT 4.0 with Internet Explorer 5.0,
    00711    * Windows NT 4.0 with Service Pack 4 (SP4) */
    00712   {
    00713     DWORD ret;
    00714     switch (csidl) {
    00715       case CSIDL_FONTS: // Get the system font path, eg %WINDIR%\Fonts
    00716         ret = GetEnvironmentVariable(_T("WINDIR"), pszPath, MAX_PATH);
    00717         if (ret == 0) break;
    00718         _tcsncat(pszPath, _T("\\Fonts"), MAX_PATH);
    00719
    00720         return (HRESULT)0;
    00721
    00722       /* XXX - other types to go here when needed... */
    00723     }
    00724   }
    00725
    00726   return E_INVALIDARG;
    00727 }
    00728
    00730 const char *GetCurrentLocale(const char *)
    00731 {
    00732   char lang[9], country[9];
    00733   if (GetLocaleInfoA(LOCALE_USER_DEFAULT, LOCALE_SISO639LANGNAME, lang, lengthof(lang)) == 0 ||
    00734       GetLocaleInfoA(LOCALE_USER_DEFAULT, LOCALE_SISO3166CTRYNAME, country, lengthof(country)) == 0) {
    00735     /* Unable to retrieve the locale. */
    00736     return NULL;
    00737   }
    00738   /* Format it as 'en_us'. */
    00739   static char retbuf[6] = {lang[0], lang[1], '_', country[0], country[1], 0};
    00740   return retbuf;
    00741 }