ReactOS  0.4.14-dev-554-g2f8d847
main.cpp
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1 /* Copyright (c) Mark Harmstone 2016-17
2  *
3  * This file is part of WinBtrfs.
4  *
5  * WinBtrfs is free software: you can redistribute it and/or modify
6  * it under the terms of the GNU Lesser General Public Licence as published by
7  * the Free Software Foundation, either version 3 of the Licence, or
8  * (at your option) any later version.
9  *
10  * WinBtrfs is distributed in the hope that it will be useful,
11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13  * GNU Lesser General Public Licence for more details.
14  *
15  * You should have received a copy of the GNU Lesser General Public Licence
16  * along with WinBtrfs. If not, see <http://www.gnu.org/licenses/>. */
17 
18 #include "shellext.h"
19 #include <windows.h>
20 #include <commctrl.h>
21 #include <strsafe.h>
22 #include <stddef.h>
23 #include <stdexcept>
24 #include "factory.h"
25 #include "resource.h"
26 
27 static const GUID CLSID_ShellBtrfsIconHandler = { 0x2690b74f, 0xf353, 0x422d, { 0xbb, 0x12, 0x40, 0x15, 0x81, 0xee, 0xf8, 0xf0 } };
28 static const GUID CLSID_ShellBtrfsContextMenu = { 0x2690b74f, 0xf353, 0x422d, { 0xbb, 0x12, 0x40, 0x15, 0x81, 0xee, 0xf8, 0xf1 } };
29 static const GUID CLSID_ShellBtrfsPropSheet = { 0x2690b74f, 0xf353, 0x422d, { 0xbb, 0x12, 0x40, 0x15, 0x81, 0xee, 0xf8, 0xf2 } };
30 static const GUID CLSID_ShellBtrfsVolPropSheet = { 0x2690b74f, 0xf353, 0x422d, { 0xbb, 0x12, 0x40, 0x15, 0x81, 0xee, 0xf8, 0xf3 } };
31 
32 #define COM_DESCRIPTION_ICON_HANDLER L"WinBtrfs shell extension (icon handler)"
33 #define COM_DESCRIPTION_CONTEXT_MENU L"WinBtrfs shell extension (context menu)"
34 #define COM_DESCRIPTION_PROP_SHEET L"WinBtrfs shell extension (property sheet)"
35 #define COM_DESCRIPTION_VOL_PROP_SHEET L"WinBtrfs shell extension (volume property sheet)"
36 #define ICON_OVERLAY_NAME L"WinBtrfs"
37 
38 typedef enum _PROCESS_DPI_AWARENESS {
43 
46 
49 
50 void set_dpi_aware() {
51  _SetProcessDpiAwareness SetProcessDpiAwareness;
52  HMODULE shcore = LoadLibraryW(L"shcore.dll");
53 
54  if (!shcore)
55  return;
56 
57  SetProcessDpiAwareness = (_SetProcessDpiAwareness)GetProcAddress(shcore, "SetProcessDpiAwareness");
58 
59  if (!SetProcessDpiAwareness)
60  return;
61 
62  SetProcessDpiAwareness(PROCESS_PER_MONITOR_DPI_AWARE);
63 }
64 
65 void format_size(uint64_t size, wstring& s, bool show_bytes) {
66  wstring t, bytes, kb, nb;
67  WCHAR nb2[255];
68  ULONG sr;
69  float f;
71  WCHAR dec[2], thou[4], grouping[64], *c;
72 #ifdef __REACTOS__
73  WCHAR buffer[64];
74 #endif
75 
76 #ifndef __REACTOS__
77  nb = to_wstring(size);
78 #else
79  swprintf(buffer, L"%I64d", size);
80  nb = wstring(buffer);
81 #endif
82 
83  GetLocaleInfoW(LOCALE_USER_DEFAULT, LOCALE_STHOUSAND, thou, sizeof(thou) / sizeof(WCHAR));
84 
85  dec[0] = '.'; dec[1] = 0; // not used, but silences gcc warning
86 
87  fmt.NumDigits = 0;
88  fmt.LeadingZero = 1;
89  fmt.lpDecimalSep = dec;
90  fmt.lpThousandSep = thou;
91  fmt.NegativeOrder = 0;
92 
93  // Grouping code copied from dlls/shlwapi/string.c in Wine - thank you
94 
95  fmt.Grouping = 0;
96  GetLocaleInfoW(LOCALE_USER_DEFAULT, LOCALE_SGROUPING, grouping, sizeof(grouping) / sizeof(WCHAR));
97 
98  c = grouping;
99  while (*c) {
100  if (*c >= '0' && *c < '9') {
101  fmt.Grouping *= 10;
102  fmt.Grouping += *c - '0';
103  }
104 
105  c++;
106  }
107 
108  if (fmt.Grouping % 10 == 0)
109  fmt.Grouping /= 10;
110  else
111  fmt.Grouping *= 10;
112 
113  GetNumberFormatW(LOCALE_USER_DEFAULT, 0, nb.c_str(), &fmt, nb2, sizeof(nb2) / sizeof(WCHAR));
114 
115  if (size < 1024) {
117  throw last_error(GetLastError());
118 
119  wstring_sprintf(s, t, nb2);
120  return;
121  }
122 
123  if (show_bytes) {
125  throw last_error(GetLastError());
126 
127  wstring_sprintf(bytes, t, nb2);
128  }
129 
130  if (size >= 1152921504606846976) {
131  sr = IDS_SIZE_EB;
132  f = (float)size / 1152921504606846976.0f;
133  } else if (size >= 1125899906842624) {
134  sr = IDS_SIZE_PB;
135  f = (float)size / 1125899906842624.0f;
136  } else if (size >= 1099511627776) {
137  sr = IDS_SIZE_TB;
138  f = (float)size / 1099511627776.0f;
139  } else if (size >= 1073741824) {
140  sr = IDS_SIZE_GB;
141  f = (float)size / 1073741824.0f;
142  } else if (size >= 1048576) {
143  sr = IDS_SIZE_MB;
144  f = (float)size / 1048576.0f;
145  } else {
146  sr = IDS_SIZE_KB;
147  f = (float)size / 1024.0f;
148  }
149 
150  if (!load_string(module, sr, t))
151  throw last_error(GetLastError());
152 
153  if (show_bytes) {
154  wstring_sprintf(kb, t, f);
155 
157  throw last_error(GetLastError());
158 
159  wstring_sprintf(s, t, kb.c_str(), bytes.c_str());
160  } else
161  wstring_sprintf(s, t, f);
162 }
163 
165  WCHAR* buf;
166  wstring s;
167 
169  last_error, 0, (WCHAR*)&buf, 0, nullptr) == 0) {
170  return L"(error retrieving message)";
171  }
172 
173  s = buf;
174 
175  LocalFree(buf);
176 
177  // remove trailing newline
178  while (s.length() > 0 && (s.substr(s.length() - 1, 1) == L"\r" || s.substr(s.length() - 1, 1) == L"\n"))
179  s = s.substr(0, s.length() - 1);
180 
181  return s;
182 }
183 
186  wstring s;
187  HMODULE ntdll = LoadLibraryW(L"ntdll.dll");
188 
189  if (!ntdll)
190  return L"(error loading ntdll.dll)";
191 
192  RtlNtStatusToDosError = (_RtlNtStatusToDosError)GetProcAddress(ntdll, "RtlNtStatusToDosError");
193 
194  if (!RtlNtStatusToDosError) {
195  FreeLibrary(ntdll);
196  return L"(error loading RtlNtStatusToDosError)";
197  }
198 
200 
201  FreeLibrary(ntdll);
202 
203  return s;
204 }
205 
206 bool load_string(HMODULE module, UINT id, wstring& s) {
207  int len;
208  LPWSTR retstr = nullptr;
209 
210  len = LoadStringW(module, id, (LPWSTR)&retstr, 0);
211 
212  if (len == 0)
213  return false;
214 
215  s = wstring(retstr, len);
216 
217  return true;
218 }
219 
220 #ifdef _MSC_VER
221 #pragma warning(push)
222 #pragma warning(disable: 4996)
223 #endif
224 
225 void wstring_sprintf(wstring& s, wstring fmt, ...) {
226  int len;
227  va_list args;
228 
229  va_start(args, fmt);
230  len = _vsnwprintf(nullptr, 0, fmt.c_str(), args);
231 
232  if (len == 0)
233  s = L"";
234  else {
235  s.resize(len);
236  _vsnwprintf((wchar_t*)s.c_str(), len, fmt.c_str(), args);
237  }
238 
239  va_end(args);
240 }
241 
242 #ifdef _MSC_VER
243 #pragma warning(pop)
244 #endif
245 
246 extern "C" STDAPI DllCanUnloadNow(void) {
247  return objs_loaded == 0 ? S_OK : S_FALSE;
248 }
249 
251  if (rclsid == CLSID_ShellBtrfsIconHandler) {
252  Factory* fact = new Factory;
253  if (!fact)
254  return E_OUTOFMEMORY;
255  else {
256  fact->type = FactoryIconHandler;
257 
258  return fact->QueryInterface(riid, ppv);
259  }
260  } else if (rclsid == CLSID_ShellBtrfsContextMenu) {
261  Factory* fact = new Factory;
262  if (!fact)
263  return E_OUTOFMEMORY;
264  else {
265  fact->type = FactoryContextMenu;
266 
267  return fact->QueryInterface(riid, ppv);
268  }
269  } else if (rclsid == CLSID_ShellBtrfsPropSheet) {
270  Factory* fact = new Factory;
271  if (!fact)
272  return E_OUTOFMEMORY;
273  else {
274  fact->type = FactoryPropSheet;
275 
276  return fact->QueryInterface(riid, ppv);
277  }
278  } else if (rclsid == CLSID_ShellBtrfsVolPropSheet) {
279  Factory* fact = new Factory;
280  if (!fact)
281  return E_OUTOFMEMORY;
282  else {
283  fact->type = FactoryVolPropSheet;
284 
285  return fact->QueryInterface(riid, ppv);
286  }
287  }
288 
290 }
291 
292 static void write_reg_key(HKEY root, const wstring& keyname, const WCHAR* val, const wstring& data) {
293  LONG l;
294  HKEY hk;
295  DWORD dispos;
296 
297  l = RegCreateKeyExW(root, keyname.c_str(), 0, nullptr, 0, KEY_ALL_ACCESS, nullptr, &hk, &dispos);
298  if (l != ERROR_SUCCESS)
300 
301  l = RegSetValueExW(hk, val, 0, REG_SZ, (const BYTE*)data.c_str(), (DWORD)((data.length() + 1) * sizeof(WCHAR)));
302  if (l != ERROR_SUCCESS)
304 
305  l = RegCloseKey(hk);
306  if (l != ERROR_SUCCESS)
308 }
309 
310 static void register_clsid(const GUID clsid, const WCHAR* description) {
311  WCHAR* clsidstring;
312  wstring inproc, progid, clsidkeyname;
314 
315  StringFromCLSID(clsid, &clsidstring);
316 
317  try {
318 #ifndef __REACTOS__
319  inproc = L"CLSID\\"s + clsidstring + L"\\InprocServer32"s;
320  progid = L"CLSID\\"s + clsidstring + L"\\ProgId"s;
321  clsidkeyname = L"CLSID\\"s + clsidstring;
322 #else
323  inproc = wstring(L"CLSID\\") + clsidstring + wstring(L"\\InprocServer32");
324  progid = wstring(L"CLSID\\") + clsidstring + wstring(L"\\ProgId");
325  clsidkeyname = wstring(L"CLSID\\") + clsidstring;
326 #endif
327 
328  write_reg_key(HKEY_CLASSES_ROOT, clsidkeyname, nullptr, description);
329 
331 
332  write_reg_key(HKEY_CLASSES_ROOT, inproc, nullptr, dllpath);
333 
334  write_reg_key(HKEY_CLASSES_ROOT, inproc, L"ThreadingModel", L"Apartment");
335  } catch (...) {
336  CoTaskMemFree(clsidstring);
337  throw;
338  }
339 
340  CoTaskMemFree(clsidstring);
341 }
342 
343 // implementation of RegDeleteTreeW, only available from Vista on
344 static void reg_delete_tree(HKEY hkey, const wstring& keyname) {
345  HKEY k;
346  LSTATUS ret;
347 
348  ret = RegOpenKeyExW(hkey, keyname.c_str(), 0, KEY_READ, &k);
349 
350  if (ret != ERROR_SUCCESS)
351  throw last_error(ret);
352 
353  try {
354  WCHAR* buf;
355  ULONG bufsize;
356 
357  ret = RegQueryInfoKeyW(k, nullptr, nullptr, nullptr, nullptr, &bufsize, nullptr,
358  nullptr, nullptr, nullptr, nullptr, nullptr);
359  if (ret != ERROR_SUCCESS)
360  throw last_error(ret);
361 
362  bufsize++;
363  buf = new WCHAR[bufsize];
364 
365  try {
366  do {
367  ULONG size = bufsize;
368 
369  ret = RegEnumKeyExW(k, 0, buf, &size, nullptr, nullptr, nullptr, nullptr);
370 
371  if (ret == ERROR_NO_MORE_ITEMS)
372  break;
373  else if (ret != ERROR_SUCCESS)
374  throw last_error(ret);
375 
377  } while (true);
378 
379  ret = RegDeleteKeyW(hkey, keyname.c_str());
380  if (ret != ERROR_SUCCESS)
381  throw last_error(ret);
382  } catch (...) {
383  delete[] buf;
384  throw;
385  }
386 
387  delete[] buf;
388  } catch (...) {
389  RegCloseKey(k);
390  throw;
391  }
392 
393  RegCloseKey(k);
394 }
395 
396 static void unregister_clsid(const GUID clsid) {
397  WCHAR* clsidstring;
398 
399  StringFromCLSID(clsid, &clsidstring);
400 
401  try {
402 #ifndef __REACTOS__
403  reg_delete_tree(HKEY_CLASSES_ROOT, L"CLSID\\"s + clsidstring);
404 #else
405  wstring path = wstring(L"CLSID\\") + clsidstring;
407 #endif
408  } catch (...) {
409  CoTaskMemFree(clsidstring);
410  throw;
411  }
412 
413  CoTaskMemFree(clsidstring);
414 }
415 
416 static void reg_icon_overlay(const GUID clsid, const wstring& name) {
417  WCHAR* clsidstring;
418 
419  StringFromCLSID(clsid, &clsidstring);
420 
421  try {
422 #ifndef __REACTOS__
423  wstring path = L"Software\\Microsoft\\Windows\\CurrentVersion\\Explorer\\ShellIconOverlayIdentifiers\\"s + name;
424 #else
425  wstring path = wstring(L"Software\\Microsoft\\Windows\\CurrentVersion\\Explorer\\ShellIconOverlayIdentifiers\\") + name;
426 #endif
427 
428  write_reg_key(HKEY_LOCAL_MACHINE, path, nullptr, clsidstring);
429  } catch (...) {
430  CoTaskMemFree(clsidstring);
431  throw;
432  }
433 
434  CoTaskMemFree(clsidstring);
435 }
436 
437 static void unreg_icon_overlay(const wstring& name) {
438 #ifndef __REACTOS__
439  reg_delete_tree(HKEY_LOCAL_MACHINE, L"Software\\Microsoft\\Windows\\CurrentVersion\\Explorer\\ShellIconOverlayIdentifiers\\"s + name);
440 #else
441  wstring path = wstring(L"Software\\Microsoft\\Windows\\CurrentVersion\\Explorer\\ShellIconOverlayIdentifiers\\") + name;
443 #endif
444 }
445 
446 static void reg_context_menu_handler(const GUID clsid, const wstring& filetype, const wstring& name) {
447  WCHAR* clsidstring;
448 
449  StringFromCLSID(clsid, &clsidstring);
450 
451  try {
452 #ifndef __REACTOS__
453  wstring path = filetype + L"\\ShellEx\\ContextMenuHandlers\\"s + name;
454 #else
455  wstring path = filetype + wstring(L"\\ShellEx\\ContextMenuHandlers\\") + name;
456 #endif
457 
458  write_reg_key(HKEY_CLASSES_ROOT, path, nullptr, clsidstring);
459  } catch (...) {
460  CoTaskMemFree(clsidstring);
461  throw;
462  }
463 }
464 
465 static void unreg_context_menu_handler(const wstring& filetype, const wstring& name) {
466 #ifndef __REACTOS__
467  reg_delete_tree(HKEY_CLASSES_ROOT, filetype + L"\\ShellEx\\ContextMenuHandlers\\"s + name);
468 #else
469  wstring path = filetype + wstring(L"\\ShellEx\\ContextMenuHandlers\\") + name;
471 #endif
472 }
473 
474 static void reg_prop_sheet_handler(const GUID clsid, const wstring& filetype, const wstring& name) {
475  WCHAR* clsidstring;
476 
477  StringFromCLSID(clsid, &clsidstring);
478 
479  try {
480 #ifndef __REACTOS__
481  wstring path = filetype + L"\\ShellEx\\PropertySheetHandlers\\"s + name;
482 #else
483  wstring path = filetype + wstring(L"\\ShellEx\\PropertySheetHandlers\\") + name;
484 #endif
485 
486  write_reg_key(HKEY_CLASSES_ROOT, path, nullptr, clsidstring);
487  } catch (...) {
488  CoTaskMemFree(clsidstring);
489  throw;
490  }
491 }
492 
493 static void unreg_prop_sheet_handler(const wstring& filetype, const wstring& name) {
494 #ifndef __REACTOS__
495  reg_delete_tree(HKEY_CLASSES_ROOT, filetype + L"\\ShellEx\\PropertySheetHandlers\\"s + name);
496 #else
497  wstring path = filetype + wstring(L"\\ShellEx\\PropertySheetHandlers\\") + name;
499 #endif
500 }
501 
502 extern "C" STDAPI DllRegisterServer(void) {
503  try {
508 
510 
513 
517  } catch (const exception& e) {
518  error_message(nullptr, e.what());
519  return E_FAIL;
520  }
521 
522  return S_OK;
523 }
524 
525 extern "C" STDAPI DllUnregisterServer(void) {
526  try {
531  unreg_context_menu_handler(L"Directory\\Background", ICON_OVERLAY_NAME);
533 
538  } catch (const exception& e) {
539  error_message(nullptr, e.what());
540  return E_FAIL;
541  }
542 
543  return S_OK;
544 }
545 
546 extern "C" STDAPI DllInstall(BOOL bInstall, LPCWSTR pszCmdLine) {
547  if (bInstall)
548  return DllRegisterServer();
549  else
550  return DllUnregisterServer();
551 }
552 
553 extern "C" BOOL APIENTRY DllMain(HANDLE hModule, DWORD dwReason, void* lpReserved) {
556 
557  return true;
558 }
559 
560 static void create_subvol(const wstring& fn) {
561  size_t found = fn.rfind(L"\\");
562  wstring path, file;
563  win_handle h;
564  btrfs_create_subvol* bcs;
566 
567  if (found == wstring::npos) {
568  path = L"";
569  file = fn;
570  } else {
571  path = fn.substr(0, found);
572  file = fn.substr(found + 1);
573  }
574  path += L"\\";
575 
577 
578  if (h == INVALID_HANDLE_VALUE)
579  return;
580 
581  size_t bcslen = offsetof(btrfs_create_subvol, name[0]) + (file.length() * sizeof(WCHAR));
582  bcs = (btrfs_create_subvol*)malloc(bcslen);
583 
584  bcs->readonly = false;
585  bcs->posix = false;
586  bcs->namelen = (uint16_t)(file.length() * sizeof(WCHAR));
587  memcpy(bcs->name, file.c_str(), bcs->namelen);
588 
589  NtFsControlFile(h, nullptr, nullptr, nullptr, &iosb, FSCTL_BTRFS_CREATE_SUBVOL, bcs, (ULONG)bcslen, nullptr, 0);
590 }
591 
592 extern "C" void CALLBACK CreateSubvolW(HWND hwnd, HINSTANCE hinst, LPWSTR lpszCmdLine, int nCmdShow) {
594 
595  command_line_to_args(lpszCmdLine, args);
596 
597  if (args.size() >= 1)
598  create_subvol(args[0]);
599 }
600 
601 static void create_snapshot2(const wstring& source, const wstring& fn) {
602  size_t found = fn.rfind(L"\\");
603  wstring path, file;
604  win_handle h, src;
607 
608  if (found == wstring::npos) {
609  path = L"";
610  file = fn;
611  } else {
612  path = fn.substr(0, found);
613  file = fn.substr(found + 1);
614  }
615  path += L"\\";
616 
618  if (src == INVALID_HANDLE_VALUE)
619  return;
620 
622 
623  if (h == INVALID_HANDLE_VALUE)
624  return;
625 
626  size_t bcslen = offsetof(btrfs_create_snapshot, name[0]) + (file.length() * sizeof(WCHAR));
627  bcs = (btrfs_create_snapshot*)malloc(bcslen);
628 
629  bcs->readonly = false;
630  bcs->posix = false;
631  bcs->namelen = (uint16_t)(file.length() * sizeof(WCHAR));
632  memcpy(bcs->name, file.c_str(), bcs->namelen);
633  bcs->subvol = src;
634 
635  NtFsControlFile(h, nullptr, nullptr, nullptr, &iosb, FSCTL_BTRFS_CREATE_SNAPSHOT, bcs, (ULONG)bcslen, nullptr, 0);
636 }
637 
638 extern "C" void CALLBACK CreateSnapshotW(HWND hwnd, HINSTANCE hinst, LPWSTR lpszCmdLine, int nCmdShow) {
640 
641  command_line_to_args(lpszCmdLine, args);
642 
643  if (args.size() >= 2)
644  create_snapshot2(args[0], args[1]);
645 }
646 
648  LPWSTR* l;
649  int num_args;
650 
651  args.clear();
652 
653  l = CommandLineToArgvW(cmdline, &num_args);
654 
655  if (!l)
656  return;
657 
658  try {
659  args.reserve(num_args);
660 
661  for (unsigned int i = 0; i < (unsigned int)num_args; i++) {
662  args.push_back(l[i]);
663  }
664  } catch (...) {
665  LocalFree(l);
666  throw;
667  }
668 
669  LocalFree(l);
670 }
671 
672 static string utf16_to_utf8(const wstring_view& utf16) {
673  string utf8;
674  char* buf;
675 
676  if (utf16.empty())
677  return "";
678 
679  auto utf8len = WideCharToMultiByte(CP_UTF8, 0, utf16.data(), static_cast<int>(utf16.length()), nullptr, 0, nullptr, nullptr);
680 
681  if (utf8len == 0)
682  throw last_error(GetLastError());
683 
684  buf = (char*)malloc(utf8len + sizeof(char));
685 
686  if (!buf)
688 
689  if (WideCharToMultiByte(CP_UTF8, 0, utf16.data(), static_cast<int>(utf16.length()), buf, utf8len, nullptr, nullptr) == 0) {
690  auto le = GetLastError();
691  free(buf);
692  throw last_error(le);
693  }
694 
695  buf[utf8len] = 0;
696 
697  utf8 = buf;
698 
699  free(buf);
700 
701  return utf8;
702 }
703 
704 #ifdef _MSC_VER
705 #pragma warning(push)
706 #pragma warning(disable: 4996)
707 #endif
708 
709 string_error::string_error(int resno, ...) {
710  wstring fmt, s;
711  int len;
712  va_list args;
713 
714  if (!load_string(module, resno, fmt))
715  throw runtime_error("LoadString failed."); // FIXME
716 
717  va_start(args, resno);
718  len = _vsnwprintf(nullptr, 0, fmt.c_str(), args);
719 
720  if (len == 0)
721  s = L"";
722  else {
723  s.resize(len);
724  _vsnwprintf((wchar_t*)s.c_str(), len, fmt.c_str(), args);
725  }
726 
727  va_end(args);
728 
729  msg = utf16_to_utf8(s);
730 }
731 
732 #ifdef _MSC_VER
733 #pragma warning(pop)
734 #endif
735 
736 wstring utf8_to_utf16(const string_view& utf8) {
737  wstring ret;
738  WCHAR* buf;
739 
740  if (utf8.empty())
741  return L"";
742 
743  auto utf16len = MultiByteToWideChar(CP_UTF8, 0, utf8.data(), (int)utf8.length(), nullptr, 0);
744 
745  if (utf16len == 0)
746  throw last_error(GetLastError());
747 
748  buf = (WCHAR*)malloc((utf16len + 1) * sizeof(WCHAR));
749 
750  if (!buf)
752 
753  if (MultiByteToWideChar(CP_UTF8, 0, utf8.data(), (int)utf8.length(), buf, utf16len) == 0) {
754  auto le = GetLastError();
755  free(buf);
756  throw last_error(le);
757  }
758 
759  buf[utf16len] = 0;
760 
761  ret = buf;
762 
763  free(buf);
764 
765  return ret;
766 }
767 
769  WCHAR* buf;
770 
772  errnum, 0, (WCHAR*)&buf, 0, nullptr) == 0)
773  throw runtime_error("FormatMessage failed");
774 
775  try {
776  msg = utf16_to_utf8(buf);
777  } catch (...) {
778  LocalFree(buf);
779  throw;
780  }
781 
782  LocalFree(buf);
783 }
784 
785 void error_message(HWND hwnd, const char* msg) {
786  wstring title;
787 
789 
790  auto wmsg = utf8_to_utf16(msg);
791 
792  MessageBoxW(hwnd, wmsg.c_str(), title.c_str(), MB_ICONERROR);
793 }
794 
797  HMODULE ntdll = LoadLibraryW(L"ntdll.dll");
798  WCHAR* buf;
799 
800  if (!ntdll)
801  throw runtime_error("Error loading ntdll.dll.");
802 
803  try {
804  RtlNtStatusToDosError = (_RtlNtStatusToDosError)GetProcAddress(ntdll, "RtlNtStatusToDosError");
805 
807  throw runtime_error("Error loading RtlNtStatusToDosError in ntdll.dll.");
808 
810  RtlNtStatusToDosError(Status), 0, (WCHAR*)&buf, 0, nullptr) == 0)
811  throw runtime_error("FormatMessage failed");
812 
813  try {
814  msg = utf16_to_utf8(buf);
815  } catch (...) {
816  LocalFree(buf);
817  throw;
818  }
819 
820  LocalFree(buf);
821  } catch (...) {
822  FreeLibrary(ntdll);
823  throw;
824  }
825 
826  FreeLibrary(ntdll);
827 }
#define IDS_SIZE_KB
Definition: resource.h:32
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Definition: _ios_base.h:321
NTSYSCALLAPI NTSTATUS NTAPI NtFsControlFile(HANDLE FileHandle, HANDLE Event, PIO_APC_ROUTINE ApcRoutine, PVOID ApcContext, PIO_STATUS_BLOCK IoStatusBlock, ULONG FsControlCode, PVOID InputBuffer, ULONG InputBufferLength, PVOID OutputBuffer, ULONG OutputBufferLength)
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enum _PROCESS_DPI_AWARENESS PROCESS_DPI_AWARENESS
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Definition: format_msg.c:583
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Definition: match.c:390
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int WINAPI LoadStringW(_In_opt_ HINSTANCE hInstance, _In_ UINT uID, _Out_writes_to_(cchBufferMax, return+1) LPWSTR lpBuffer, _In_ int cchBufferMax)
#define DWORD
Definition: nt_native.h:44
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Definition: main.cpp:34
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Definition: compat.h:125
LONG WINAPI RegCreateKeyExW(_In_ HKEY hKey, _In_ LPCWSTR lpSubKey, _In_ DWORD Reserved, _In_opt_ LPWSTR lpClass, _In_ DWORD dwOptions, _In_ REGSAM samDesired, _In_opt_ LPSECURITY_ATTRIBUTES lpSecurityAttributes, _Out_ PHKEY phkResult, _Out_opt_ LPDWORD lpdwDisposition)
Definition: reg.c:1091
static const GUID CLSID_ShellBtrfsPropSheet
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GLfloat GLfloat GLfloat GLfloat h
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INT WINAPI GetLocaleInfoW(LCID lcid, LCTYPE lctype, LPWSTR buffer, INT len)
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string_error(int resno,...)
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GLsizei GLenum const GLvoid GLsizei GLenum GLbyte GLbyte GLbyte GLdouble GLdouble GLdouble GLfloat GLfloat GLfloat GLint GLint GLint GLshort GLshort GLshort GLubyte GLubyte GLubyte GLuint GLuint GLuint GLushort GLushort GLushort GLbyte GLbyte GLbyte GLbyte GLdouble GLdouble GLdouble GLdouble GLfloat GLfloat GLfloat GLfloat GLint GLint GLint GLint GLshort GLshort GLshort GLshort GLubyte GLubyte GLubyte GLubyte GLuint GLuint GLuint GLuint GLushort GLushort GLushort GLushort GLboolean const GLdouble const GLfloat const GLint const GLshort const GLbyte const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLdouble const GLfloat const GLfloat const GLint const GLint const GLshort const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort GLenum GLenum GLenum GLfloat GLenum GLint GLenum GLenum GLenum GLfloat GLenum GLenum GLint GLenum GLfloat GLenum GLint GLint GLushort GLenum GLenum GLfloat GLenum GLenum GLint GLfloat const GLubyte GLenum GLenum GLenum const GLfloat GLenum GLenum const GLint GLenum GLint GLint GLsizei GLsizei GLint GLenum GLenum const GLvoid GLenum GLenum const GLfloat GLenum GLenum const GLint GLenum GLenum const GLdouble GLenum GLenum const GLfloat GLenum GLenum const GLint GLsizei GLuint GLfloat GLuint GLbitfield GLfloat GLint GLuint GLboolean GLenum GLfloat GLenum GLbitfield GLenum GLfloat GLfloat GLint GLint const GLfloat GLenum GLfloat GLfloat GLint GLint GLfloat GLfloat GLint GLint const GLfloat GLint GLfloat GLfloat GLint GLfloat GLfloat GLint GLfloat GLfloat const GLdouble const GLfloat const GLdouble const GLfloat GLint i
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Definition: btrfsioctl.h:9
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r l[0]
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Definition: dsound.c:943
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Definition: fci.c:126
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