src/OSSupport_Win32.cpp

   1 ///////////////////////////////////////////////////////////////////////////////
   2 // MuldeR's Utilities for Qt
   3 // Copyright (C) 2004-2018 LoRd_MuldeR <MuldeR2@GMX.de>
   4 //
   5 // This library is free software; you can redistribute it and/or
   6 // modify it under the terms of the GNU Lesser General Public
   7 // License as published by the Free Software Foundation; either
   8 // version 2.1 of the License, or (at your option) any later version.
   9 //
  10 // This library 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 GNU
  13 // Lesser General Public License for more details.
  14 //
  15 // You should have received a copy of the GNU Lesser General Public
  16 // License along with this library; if not, write to the Free Software
  17 // Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
  18 //
  19 // http://www.gnu.org/licenses/lgpl-2.1.txt
  20 //////////////////////////////////////////////////////////////////////////////////
  21
  22 //Win32 API
  23 #define WIN32_LEAN_AND_MEAN 1
  24 #include <Windows.h>
  25 #include <Psapi.h>
  26 #include <Sensapi.h>
  27 #include <Shellapi.h>
  28 #include <PowrProf.h>
  29 #include <Mmsystem.h>
  30 #include <WinIoCtl.h>
  31 #pragma warning(push)
  32 #pragma warning(disable:4091) //for MSVC2015
  33 #include <ShlObj.h>
  34 #pragma warning(pop)
  35
  36 //CRT
  37 #include <io.h>
  38
  39 //Internal
  40 #include <MUtils/Global.h>
  41 #include <MUtils/OSSupport.h>
  42 #include <MUtils/GUI.h>
  43 #include "Internal.h"
  44 #include "CriticalSection_Win32.h"
  45 #include "Utils_Win32.h"
  46
  47 //Qt
  48 #include <QMap>
  49 #include <QReadWriteLock>
  50 #include <QDir>
  51 #include <QWidget>
  52 #include <QProcess>
  53 #include <QSet>
  54
  55 //Main thread ID
  56 static const DWORD g_main_thread_id = GetCurrentThreadId();
  57
  58 ///////////////////////////////////////////////////////////////////////////////
  59 // SYSTEM MESSAGE
  60 ///////////////////////////////////////////////////////////////////////////////
  61
  62 static const UINT g_msgBoxFlags = MB_TOPMOST | MB_TASKMODAL | MB_SETFOREGROUND;
  63
  64 void MUtils::OS::system_message_nfo(const wchar_t *const title, const wchar_t *const text)
  65 {
  66         MessageBoxW(NULL, text, title, g_msgBoxFlags | MB_ICONINFORMATION);
  67 }
  68
  69 void MUtils::OS::system_message_wrn(const wchar_t *const title, const wchar_t *const text)
  70 {
  71         MessageBoxW(NULL, text, title, g_msgBoxFlags | MB_ICONWARNING);
  72 }
  73
  74 void MUtils::OS::system_message_err(const wchar_t *const title, const wchar_t *const text)
  75 {
  76         MessageBoxW(NULL, text, title, g_msgBoxFlags | MB_ICONERROR);
  77 }
  78
  79 ///////////////////////////////////////////////////////////////////////////////
  80 // FETCH CLI ARGUMENTS
  81 ///////////////////////////////////////////////////////////////////////////////
  82
  83 static QReadWriteLock                          g_arguments_lock;
  84 static QScopedPointer<MUtils::OS::ArgumentMap> g_arguments_list;
  85
  86 const QStringList MUtils::OS::crack_command_line(const QString &command_line)
  87 {
  88         int nArgs = 0;
  89         LPWSTR *szArglist = CommandLineToArgvW(command_line.isNull() ? GetCommandLineW() : MUTILS_WCHR(command_line), &nArgs);
  90
  91         QStringList command_line_tokens;
  92         if(NULL != szArglist)
  93         {
  94                 for(int i = 0; i < nArgs; i++)
  95                 {
  96                         const QString argStr = MUTILS_QSTR(szArglist[i]).trimmed();
  97                         if(!argStr.isEmpty())
  98                         {
  99                                 command_line_tokens << argStr;
 100                         }
 101                 }
 102                 LocalFree(szArglist);
 103         }
 104
 105         return command_line_tokens;
 106 }
 107
 108 const MUtils::OS::ArgumentMap &MUtils::OS::arguments(void)
 109 {
 110         QReadLocker readLock(&g_arguments_lock);
 111
 112         //Already initialized?
 113         if(!g_arguments_list.isNull())
 114         {
 115                 return (*(g_arguments_list.data()));
 116         }
 117
 118         readLock.unlock();
 119         QWriteLocker writeLock(&g_arguments_lock);
 120
 121         //Still not initialized?
 122         if(!g_arguments_list.isNull())
 123         {
 124                 return (*(g_arguments_list.data()));
 125         }
 126
 127         g_arguments_list.reset(new ArgumentMap());
 128         const QStringList argList = crack_command_line();
 129
 130         if(!argList.isEmpty())
 131         {
 132                 const QString argPrefix = QLatin1String("--");
 133                 const QChar   separator = QLatin1Char('=');
 134
 135                 bool firstToken = true;
 136                 for(QStringList::ConstIterator iter = argList.constBegin(); iter != argList.constEnd(); iter++)
 137                 {
 138                         if(firstToken)
 139                         {
 140                                 firstToken = false;
 141                                 continue; /*skip executable file name*/
 142                         }
 143                         if(iter->startsWith(argPrefix))
 144                         {
 145                                 const QString argData = iter->mid(2).trimmed();
 146                                 if(argData.length() > 0)
 147                                 {
 148                                         const int separatorIndex = argData.indexOf(separator);
 149                                         if(separatorIndex > 0)
 150                                         {
 151                                                 const QString argKey = argData.left(separatorIndex).trimmed();
 152                                                 const QString argVal = argData.mid(separatorIndex + 1).trimmed();
 153                                                 g_arguments_list->insertMulti(argKey.toLower(), argVal);
 154                                         }
 155                                         else
 156                                         {
 157                                                 g_arguments_list->insertMulti(argData.toLower(), QString());
 158                                         }
 159                                 }
 160                         }
 161                 }
 162         }
 163         else if(argList.empty())
 164         {
 165                 qWarning("CommandLineToArgvW() has failed !!!");
 166         }
 167
 168         return (*(g_arguments_list.data()));
 169 }
 170
 171 ///////////////////////////////////////////////////////////////////////////////
 172 // COPY FILE
 173 ///////////////////////////////////////////////////////////////////////////////
 174
 175 typedef struct _progress_callback_data_t
 176 {
 177         MUtils::OS::progress_callback_t callback_function;
 178         void *user_data;
 179 }
 180 progress_callback_data_t;
 181
 182 static DWORD __stdcall copy_file_progress(LARGE_INTEGER TotalFileSize, LARGE_INTEGER TotalBytesTransferred, LARGE_INTEGER StreamSize, LARGE_INTEGER StreamBytesTransferred, DWORD dwStreamNumber, DWORD dwCallbackReason, HANDLE hSourceFile, HANDLE hDestinationFile, LPVOID lpData)
 183 {
 184         if(const progress_callback_data_t *data = (progress_callback_data_t*) lpData)
 185         {
 186                 const double progress = qBound(0.0, double(TotalBytesTransferred.QuadPart) / double(TotalFileSize.QuadPart), 1.0);
 187                 return data->callback_function(progress, data->user_data) ? PROGRESS_CONTINUE : PROGRESS_CANCEL;
 188         }
 189         return PROGRESS_CONTINUE;
 190 }
 191
 192 MUTILS_API bool MUtils::OS::copy_file(const QString &sourcePath, const QString &outputPath, const bool &overwrite, const progress_callback_t callback, void *const userData)
 193 {
 194         progress_callback_data_t callback_data = { callback, userData };
 195         BOOL cancel = FALSE;
 196         const BOOL result = CopyFileExW(MUTILS_WCHR(QDir::toNativeSeparators(sourcePath)), MUTILS_WCHR(QDir::toNativeSeparators(outputPath)), ((callback_data.callback_function) ? copy_file_progress : NULL), ((callback_data.callback_function) ? &callback_data : NULL), &cancel, (overwrite ? 0 : COPY_FILE_FAIL_IF_EXISTS));
 197
 198         if(result == FALSE)
 199         {
 200                 const DWORD errorCode = GetLastError();
 201                 if(errorCode != ERROR_REQUEST_ABORTED)
 202                 {
 203                         qWarning("CopyFile() failed with error code 0x%08X!", errorCode);
 204                 }
 205                 else
 206                 {
 207                         qWarning("CopyFile() operation was abroted by user!");
 208                 }
 209         }
 210
 211         return (result != FALSE);
 212 }
 213
 214 ///////////////////////////////////////////////////////////////////////////////
 215 // GET FILE VERSION
 216 ///////////////////////////////////////////////////////////////////////////////
 217
 218 static bool get_file_version_helper(const QString fileName, PVOID buffer, const size_t &size, quint16 *const major, quint16 *const minor, quint16 *const patch, quint16 *const build)
 219 {
 220         if(!GetFileVersionInfo(MUTILS_WCHR(fileName), 0, size, buffer))
 221         {
 222                 qWarning("GetFileVersionInfo() has failed, file version cannot be determined!");
 223                 return false;
 224         }
 225
 226         VS_FIXEDFILEINFO *verInfo;
 227         UINT verInfoLen;
 228         if(!VerQueryValue(buffer, L"\\", (LPVOID*)(&verInfo), &verInfoLen))
 229         {
 230                 qWarning("VerQueryValue() has failed, file version cannot be determined!");
 231                 return false;
 232         }
 233
 234         if(major) *major = quint16((verInfo->dwFileVersionMS >> 16) & 0x0000FFFF);
 235         if(minor) *minor = quint16((verInfo->dwFileVersionMS)       & 0x0000FFFF);
 236         if(patch) *patch = quint16((verInfo->dwFileVersionLS >> 16) & 0x0000FFFF);
 237         if(build) *build = quint16((verInfo->dwFileVersionLS)       & 0x0000FFFF);
 238
 239         return true;
 240 }
 241
 242 bool MUtils::OS::get_file_version(const QString fileName, quint16 *const major, quint16 *const minor, quint16 *const patch, quint16 *const build)
 243 {
 244         if(major) *major = 0U; if(minor) *minor = 0U;
 245         if(patch) *patch = 0U; if(build) *build = 0U;
 246
 247         const DWORD size = GetFileVersionInfoSize(MUTILS_WCHR(fileName), NULL);
 248         if(size < 1)
 249         {
 250                 qWarning("GetFileVersionInfoSize() has failed, file version cannot be determined!");
 251                 return false;
 252         }
 253
 254         PVOID buffer = _malloca(size);
 255         if(!buffer)
 256         {
 257                 qWarning("Memory allocation has failed!");
 258                 return false;
 259         }
 260
 261         const bool success = get_file_version_helper(fileName, buffer, size, major, minor, patch, build);
 262
 263         _freea(buffer);
 264         return success;
 265 }
 266
 267 ///////////////////////////////////////////////////////////////////////////////
 268 // OS VERSION DETECTION
 269 ///////////////////////////////////////////////////////////////////////////////
 270
 271 static bool g_os_version_initialized = false;
 272 static MUtils::OS::Version::os_version_t g_os_version_info = MUtils::OS::Version::UNKNOWN_OPSYS;
 273 static QReadWriteLock g_os_version_lock;
 274
 275 //Maps marketing names to the actual Windows NT versions
 276 static const struct
 277 {
 278         MUtils::OS::Version::os_version_t version;
 279         const char friendlyName[64];
 280 }
 281 g_os_version_lut[] =
 282 {
 283         { MUtils::OS::Version::WINDOWS_WIN2K, "Windows 2000"                                  },        //2000
 284         { MUtils::OS::Version::WINDOWS_WINXP, "Windows XP or Windows XP Media Center Edition" },        //XP
 285         { MUtils::OS::Version::WINDOWS_XPX64, "Windows Server 2003 or Windows XP x64"         },        //XP_x64
 286         { MUtils::OS::Version::WINDOWS_VISTA, "Windows Vista or Windows Server 2008"          },        //Vista
 287         { MUtils::OS::Version::WINDOWS_WIN70, "Windows 7 or Windows Server 2008 R2"           },        //7
 288         { MUtils::OS::Version::WINDOWS_WIN80, "Windows 8 or Windows Server 2012"              },        //8
 289         { MUtils::OS::Version::WINDOWS_WIN81, "Windows 8.1 or Windows Server 2012 R2"         },        //8.1
 290         { MUtils::OS::Version::WINDOWS_WN100, "Windows 10 or Windows Server 2016"             },        //10
 291         { MUtils::OS::Version::UNKNOWN_OPSYS, "N/A" }
 292 };
 293
 294 //OS version data dtructures
 295 namespace MUtils
 296 {
 297         namespace OS
 298         {
 299                 namespace Version
 300                 {
 301                         //Comparision operators for os_version_t
 302                         bool os_version_t::operator== (const os_version_t &rhs) const { return (type == rhs.type) && (versionMajor == rhs.versionMajor) && ((versionMinor == rhs.versionMinor)); }
 303                         bool os_version_t::operator!= (const os_version_t &rhs) const { return (type != rhs.type) || (versionMajor != rhs.versionMajor) || ((versionMinor != rhs.versionMinor)); }
 304                         bool os_version_t::operator>  (const os_version_t &rhs) const { return (type == rhs.type) && ((versionMajor > rhs.versionMajor) || ((versionMajor == rhs.versionMajor) && (versionMinor >  rhs.versionMinor))); }
 305                         bool os_version_t::operator>= (const os_version_t &rhs) const { return (type == rhs.type) && ((versionMajor > rhs.versionMajor) || ((versionMajor == rhs.versionMajor) && (versionMinor >= rhs.versionMinor))); }
 306                         bool os_version_t::operator<  (const os_version_t &rhs) const { return (type == rhs.type) && ((versionMajor < rhs.versionMajor) || ((versionMajor == rhs.versionMajor) && (versionMinor <  rhs.versionMinor))); }
 307                         bool os_version_t::operator<= (const os_version_t &rhs) const { return (type == rhs.type) && ((versionMajor < rhs.versionMajor) || ((versionMajor == rhs.versionMajor) && (versionMinor <= rhs.versionMinor))); }
 308
 309                         //Known Windows NT versions
 310                         const os_version_t WINDOWS_WIN2K = { OS_WINDOWS,  5, 0,  2195, 0 };     // 2000
 311                         const os_version_t WINDOWS_WINXP = { OS_WINDOWS,  5, 1,  2600, 0 };     // XP
 312                         const os_version_t WINDOWS_XPX64 = { OS_WINDOWS,  5, 2,  3790, 0 };     // XP_x64
 313                         const os_version_t WINDOWS_VISTA = { OS_WINDOWS,  6, 0,  6000, 0 };     // Vista
 314                         const os_version_t WINDOWS_WIN70 = { OS_WINDOWS,  6, 1,  7600, 0 };     // 7
 315                         const os_version_t WINDOWS_WIN80 = { OS_WINDOWS,  6, 2,  9200, 0 };     // 8
 316                         const os_version_t WINDOWS_WIN81 = { OS_WINDOWS,  6, 3,  9600, 0 };     // 8.1
 317                         const os_version_t WINDOWS_WN100 = { OS_WINDOWS, 10, 0, 10240, 0 };     // 10
 318
 319                         //Unknown OS
 320                         const os_version_t UNKNOWN_OPSYS = { OS_UNKNOWN, 0,  0,     0, 0 };     // N/A
 321                 }
 322         }
 323 }
 324
 325 static inline DWORD SAFE_ADD(const DWORD &a, const DWORD &b, const DWORD &limit = MAXDWORD)
 326 {
 327         return ((a >= limit) || (b >= limit) || ((limit - a) <= b)) ? limit : (a + b);
 328 }
 329
 330
 331 static void initialize_os_version(OSVERSIONINFOEXW *const osInfo)
 332 {
 333         memset(osInfo, 0, sizeof(OSVERSIONINFOEXW));
 334         osInfo->dwOSVersionInfoSize = sizeof(OSVERSIONINFOEXW);
 335 }
 336
 337 static inline DWORD initialize_step_size(const DWORD &limit)
 338 {
 339         DWORD result = 1;
 340         while (result < limit)
 341         {
 342                 result = SAFE_ADD(result, result);
 343         }
 344         return result;
 345 }
 346
 347 #pragma warning(push)
 348 #pragma warning(disable: 4996)
 349
 350 static bool rtl_get_version(OSVERSIONINFOEXW *const osInfo)
 351 {
 352         typedef LONG(__stdcall *RtlGetVersion)(LPOSVERSIONINFOEXW);
 353         if (const HMODULE ntdll = GetModuleHandleW(L"ntdll"))
 354         {
 355                 if (const RtlGetVersion pRtlGetVersion = (RtlGetVersion)GetProcAddress(ntdll, "RtlGetVersion"))
 356                 {
 357                         initialize_os_version(osInfo);
 358                         if (pRtlGetVersion(osInfo) == 0)
 359                         {
 360                                 return true;
 361                         }
 362                 }
 363         }
 364
 365         //Fallback
 366         initialize_os_version(osInfo);
 367         return (GetVersionExW((LPOSVERSIONINFOW)osInfo) != FALSE);
 368 }
 369
 370 #pragma warning(pop)
 371
 372 static bool rtl_verify_version(OSVERSIONINFOEXW *const osInfo, const ULONG typeMask, const ULONGLONG condMask)
 373 {
 374         typedef LONG(__stdcall *RtlVerifyVersionInfo)(LPOSVERSIONINFOEXW, ULONG, ULONGLONG);
 375         if (const HMODULE ntdll = GetModuleHandleW(L"ntdll"))
 376         {
 377                 if (const RtlVerifyVersionInfo pRtlVerifyVersionInfo = (RtlVerifyVersionInfo)GetProcAddress(ntdll, "RtlVerifyVersionInfo"))
 378                 {
 379                         if (pRtlVerifyVersionInfo(osInfo, typeMask, condMask) == 0)
 380                         {
 381                                 return true;
 382                         }
 383                 }
 384         }
 385
 386         //Fallback
 387         return (VerifyVersionInfoW(osInfo, typeMask, condMask) != FALSE);
 388 }
 389
 390 static bool verify_os_version(const DWORD major, const DWORD minor)
 391 {
 392         OSVERSIONINFOEXW osvi;
 393         DWORDLONG dwlConditionMask = 0;
 394         initialize_os_version(&osvi);
 395
 396         //Initialize the OSVERSIONINFOEX structure
 397         osvi.dwMajorVersion = major;
 398         osvi.dwMinorVersion = minor;
 399         osvi.dwPlatformId = VER_PLATFORM_WIN32_NT;
 400
 401         //Initialize the condition mask
 402         VER_SET_CONDITION(dwlConditionMask, VER_MAJORVERSION, VER_GREATER_EQUAL);
 403         VER_SET_CONDITION(dwlConditionMask, VER_MINORVERSION, VER_GREATER_EQUAL);
 404         VER_SET_CONDITION(dwlConditionMask, VER_PLATFORMID,   VER_EQUAL);
 405
 406         // Perform the test
 407         const BOOL ret = rtl_verify_version(&osvi, VER_MAJORVERSION | VER_MINORVERSION | VER_PLATFORMID, dwlConditionMask);
 408
 409         //Error checking
 410         if(!ret)
 411         {
 412                 if(GetLastError() != ERROR_OLD_WIN_VERSION)
 413                 {
 414                         qWarning("VerifyVersionInfo() system call has failed!");
 415                 }
 416         }
 417
 418         return (ret != FALSE);
 419 }
 420
 421 static bool verify_os_build(const DWORD build)
 422 {
 423         OSVERSIONINFOEXW osvi;
 424         DWORDLONG dwlConditionMask = 0;
 425         initialize_os_version(&osvi);
 426
 427         //Initialize the OSVERSIONINFOEX structure
 428         osvi.dwBuildNumber = build;
 429         osvi.dwPlatformId = VER_PLATFORM_WIN32_NT;
 430
 431         //Initialize the condition mask
 432         VER_SET_CONDITION(dwlConditionMask, VER_BUILDNUMBER, VER_GREATER_EQUAL);
 433         VER_SET_CONDITION(dwlConditionMask, VER_PLATFORMID, VER_EQUAL);
 434
 435         // Perform the test
 436         const BOOL ret = rtl_verify_version(&osvi, VER_BUILDNUMBER | VER_PLATFORMID, dwlConditionMask);
 437
 438         //Error checking
 439         if (!ret)
 440         {
 441                 if (GetLastError() != ERROR_OLD_WIN_VERSION)
 442                 {
 443                         qWarning("VerifyVersionInfo() system call has failed!");
 444                 }
 445         }
 446
 447         return (ret != FALSE);
 448 }
 449
 450 static bool verify_os_spack(const WORD spack)
 451 {
 452         OSVERSIONINFOEXW osvi;
 453         DWORDLONG dwlConditionMask = 0;
 454         initialize_os_version(&osvi);
 455
 456         //Initialize the OSVERSIONINFOEX structure
 457         osvi.wServicePackMajor = spack;
 458         osvi.dwPlatformId = VER_PLATFORM_WIN32_NT;
 459
 460         //Initialize the condition mask
 461         VER_SET_CONDITION(dwlConditionMask, VER_SERVICEPACKMAJOR, VER_GREATER_EQUAL);
 462         VER_SET_CONDITION(dwlConditionMask, VER_PLATFORMID, VER_EQUAL);
 463
 464         // Perform the test
 465         const BOOL ret = rtl_verify_version(&osvi, VER_SERVICEPACKMAJOR | VER_PLATFORMID, dwlConditionMask);
 466
 467         //Error checking
 468         if (!ret)
 469         {
 470                 if (GetLastError() != ERROR_OLD_WIN_VERSION)
 471                 {
 472                         qWarning("VerifyVersionInfo() system call has failed!");
 473                 }
 474         }
 475
 476         return (ret != FALSE);
 477 }
 478
 479 static bool get_real_os_version(unsigned int *const major, unsigned int *const minor, unsigned int *const build, unsigned int *const spack, bool *const pbOverride)
 480 {
 481         static const DWORD MAX_VERSION = MAXWORD;
 482         static const DWORD MAX_BUILDNO = MAXINT;
 483         static const DWORD MAX_SRVCPCK = MAXWORD;
 484
 485         *major = *minor = *build = *spack = 0U;
 486         *pbOverride = false;
 487
 488         //Initialize local variables
 489         OSVERSIONINFOEXW osvi;
 490         memset(&osvi, 0, sizeof(OSVERSIONINFOEXW));
 491         osvi.dwOSVersionInfoSize = sizeof(OSVERSIONINFOEXW);
 492
 493         //Try GetVersionEx() first
 494         if(rtl_get_version(&osvi) == FALSE)
 495         {
 496                 qWarning("GetVersionEx() has failed, cannot detect Windows version!");
 497                 return false;
 498         }
 499
 500         //Make sure we are running on NT
 501         if(osvi.dwPlatformId == VER_PLATFORM_WIN32_NT)
 502         {
 503                 *major = osvi.dwMajorVersion;
 504                 *minor = osvi.dwMinorVersion;
 505                 *build = osvi.dwBuildNumber;
 506                 *spack = osvi.wServicePackMajor;
 507         }
 508         else
 509         {
 510                 if (verify_os_version(4, 0))
 511                 {
 512                         *major = 4;
 513                         *build = 1381;
 514                         *pbOverride = true;
 515                 }
 516                 else
 517                 {
 518                         qWarning("Not running on Windows NT, unsupported operating system!");
 519                         return false;
 520                 }
 521         }
 522
 523         //Major Version
 524         for (DWORD nextMajor = (*major) + 1; nextMajor <= MAX_VERSION; nextMajor++)
 525         {
 526                 if (verify_os_version(nextMajor, 0))
 527                 {
 528                         *major = nextMajor;
 529                         *minor = 0;
 530                         *pbOverride = true;
 531                         continue;
 532                 }
 533                 break;
 534         }
 535
 536         //Minor Version
 537         for (DWORD nextMinor = (*minor) + 1; nextMinor <= MAX_VERSION; nextMinor++)
 538         {
 539                 if (verify_os_version((*major), nextMinor))
 540                 {
 541                         *minor = nextMinor;
 542                         *pbOverride = true;
 543                         continue;
 544                 }
 545                 break;
 546         }
 547
 548         //Build Version
 549         if (verify_os_build(SAFE_ADD((*build), 1, MAX_BUILDNO)))
 550         {
 551                 DWORD stepSize = initialize_step_size(MAX_BUILDNO);
 552                 for (DWORD nextBuildNo = SAFE_ADD((*build), stepSize, MAX_BUILDNO); (*build) < MAX_BUILDNO; nextBuildNo = SAFE_ADD((*build), stepSize, MAX_BUILDNO))
 553                 {
 554                         if (verify_os_build(nextBuildNo))
 555                         {
 556                                 *build = nextBuildNo;
 557                                 *pbOverride = true;
 558                                 continue;
 559                         }
 560                         if (stepSize > 1)
 561                         {
 562                                 stepSize = stepSize / 2;
 563                                 continue;
 564                         }
 565                         break;
 566                 }
 567         }
 568
 569         //Service Pack
 570         if (verify_os_spack(SAFE_ADD((*spack), 1, MAX_SRVCPCK)))
 571         {
 572                 DWORD stepSize = initialize_step_size(MAX_SRVCPCK);
 573                 for (DWORD nextSPackNo = SAFE_ADD((*spack), stepSize, MAX_SRVCPCK); (*spack) < MAX_SRVCPCK; nextSPackNo = SAFE_ADD((*spack), stepSize, MAX_SRVCPCK))
 574                 {
 575                         if (verify_os_spack(nextSPackNo))
 576                         {
 577                                 *build = nextSPackNo;
 578                                 *pbOverride = true;
 579                                 continue;
 580                         }
 581                         if (stepSize > 1)
 582                         {
 583                                 stepSize = stepSize / 2;
 584                                 continue;
 585                         }
 586                         break;
 587                 }
 588         }
 589
 590         return true;
 591 }
 592
 593 const MUtils::OS::Version::os_version_t &MUtils::OS::os_version(void)
 594 {
 595         QReadLocker readLock(&g_os_version_lock);
 596
 597         //Already initialized?
 598         if(g_os_version_initialized)
 599         {
 600                 return g_os_version_info;
 601         }
 602
 603         readLock.unlock();
 604         QWriteLocker writeLock(&g_os_version_lock);
 605
 606         //Initialized now?
 607         if(g_os_version_initialized)
 608         {
 609                 return g_os_version_info;
 610         }
 611
 612         //Detect OS version
 613         unsigned int major, minor, build, spack; bool overrideFlg;
 614         if(get_real_os_version(&major, &minor, &build, &spack, &overrideFlg))
 615         {
 616                 g_os_version_info.type = Version::OS_WINDOWS;
 617                 g_os_version_info.versionMajor = major;
 618                 g_os_version_info.versionMinor = minor;
 619                 g_os_version_info.versionBuild = build;
 620                 g_os_version_info.versionSPack = spack;
 621                 g_os_version_info.overrideFlag = overrideFlg;
 622         }
 623         else
 624         {
 625                 qWarning("Failed to determine the operating system version!");
 626         }
 627
 628         //Completed
 629         g_os_version_initialized = true;
 630         return g_os_version_info;
 631 }
 632
 633 const char *MUtils::OS::os_friendly_name(const MUtils::OS::Version::os_version_t &os_version)
 634 {
 635         for(size_t i = 0; g_os_version_lut[i].version != MUtils::OS::Version::UNKNOWN_OPSYS; i++)
 636         {
 637                 if(os_version == g_os_version_lut[i].version)
 638                 {
 639                         return g_os_version_lut[i].friendlyName;
 640                 }
 641         }
 642
 643         return NULL;
 644 }
 645
 646 ///////////////////////////////////////////////////////////////////////////////
 647 // WINE DETECTION
 648 ///////////////////////////////////////////////////////////////////////////////
 649
 650 static bool g_wine_deteced = false;
 651 static bool g_wine_initialized = false;
 652 static QReadWriteLock g_wine_lock;
 653
 654 static const bool detect_wine(void)
 655 {
 656         void *const ptr = MUtils::Win32Utils::resolve<void*>(QLatin1String("ntdll"), QLatin1String("wine_get_version"));
 657         return (ptr != NULL);
 658 }
 659
 660 const bool &MUtils::OS::running_on_wine(void)
 661 {
 662         QReadLocker readLock(&g_wine_lock);
 663
 664         //Already initialized?
 665         if(g_wine_initialized)
 666         {
 667                 return g_wine_deteced;
 668         }
 669
 670         readLock.unlock();
 671         QWriteLocker writeLock(&g_wine_lock);
 672
 673         //Initialized now?
 674         if(g_wine_initialized)
 675         {
 676                 return g_wine_deteced;
 677         }
 678
 679         //Try to detect Wine
 680         g_wine_deteced = detect_wine();
 681         g_wine_initialized = true;
 682
 683         return g_wine_deteced;
 684 }
 685
 686 ///////////////////////////////////////////////////////////////////////////////
 687 // KNWON FOLDERS
 688 ///////////////////////////////////////////////////////////////////////////////
 689
 690 static QReadWriteLock                         g_known_folders_lock;
 691 static QScopedPointer<QHash<size_t, QString>> g_known_folders_data;
 692
 693 typedef HRESULT (WINAPI *SHGetKnownFolderPath_t)(const GUID &rfid, DWORD dwFlags, HANDLE hToken, PWSTR *ppszPath);
 694 typedef HRESULT (WINAPI *SHGetFolderPath_t)     (HWND hwndOwner, int nFolder, HANDLE hToken, DWORD dwFlags, LPWSTR pszPath);
 695
 696 const QString &MUtils::OS::known_folder(known_folder_t folder_id)
 697 {
 698         typedef enum { KF_FLAG_CREATE = 0x00008000 } kf_flags_t;
 699
 700         struct
 701         {
 702                 const int csidl;
 703                 const GUID guid;
 704         }
 705         static s_folders[] =
 706         {
 707                 { 0x001c, {0xF1B32785,0x6FBA,0x4FCF,{0x9D,0x55,0x7B,0x8E,0x7F,0x15,0x70,0x91}} },  //CSIDL_LOCAL_APPDATA
 708                 { 0x0026, {0x905e63b6,0xc1bf,0x494e,{0xb2,0x9c,0x65,0xb7,0x32,0xd3,0xd2,0x1a}} },  //CSIDL_PROGRAM_FILES
 709                 { 0x0024, {0xF38BF404,0x1D43,0x42F2,{0x93,0x05,0x67,0xDE,0x0B,0x28,0xFC,0x23}} },  //CSIDL_WINDOWS_FOLDER
 710                 { 0x0025, {0x1AC14E77,0x02E7,0x4E5D,{0xB7,0x44,0x2E,0xB1,0xAE,0x51,0x98,0xB7}} },  //CSIDL_SYSTEM_FOLDER
 711         };
 712
 713         size_t folderId = size_t(-1);
 714
 715         switch(folder_id)
 716         {
 717                 case FOLDER_LOCALAPPDATA: folderId = 0; break;
 718                 case FOLDER_PROGRAMFILES: folderId = 1; break;
 719                 case FOLDER_SYSTROOT_DIR: folderId = 2; break;
 720                 case FOLDER_SYSTEMFOLDER: folderId = 3; break;
 721         }
 722
 723         if(folderId == size_t(-1))
 724         {
 725                 qWarning("Invalid 'known' folder was requested!");
 726                 return *reinterpret_cast<QString*>(NULL);
 727         }
 728
 729         QReadLocker readLock(&g_known_folders_lock);
 730
 731         //Already in cache?
 732         if(!g_known_folders_data.isNull())
 733         {
 734                 if(g_known_folders_data->contains(folderId))
 735                 {
 736                         return (*g_known_folders_data)[folderId];
 737                 }
 738         }
 739
 740         //Obtain write lock to initialize
 741         readLock.unlock();
 742         QWriteLocker writeLock(&g_known_folders_lock);
 743
 744         //Still not in cache?
 745         if(!g_known_folders_data.isNull())
 746         {
 747                 if(g_known_folders_data->contains(folderId))
 748                 {
 749                         return (*g_known_folders_data)[folderId];
 750                 }
 751         }
 752
 753         //Initialize on first call
 754         if(g_known_folders_data.isNull())
 755         {
 756                 g_known_folders_data.reset(new QHash<size_t, QString>());
 757         }
 758
 759         QString folderPath;
 760
 761         //Try SHGetKnownFolderPath() first!
 762         if(const SHGetKnownFolderPath_t known_folders_fpGetKnownFolderPath = MUtils::Win32Utils::resolve<SHGetKnownFolderPath_t>(QLatin1String("shell32"), QLatin1String("SHGetKnownFolderPath")))
 763         {
 764                 WCHAR *path = NULL;
 765                 if(known_folders_fpGetKnownFolderPath(s_folders[folderId].guid, KF_FLAG_CREATE, NULL, &path) == S_OK)
 766                 {
 767                         //MessageBoxW(0, path, L"SHGetKnownFolderPath", MB_TOPMOST);
 768                         const QDir folderTemp = QDir(QDir::fromNativeSeparators(MUTILS_QSTR(path)));
 769                         if(folderTemp.exists())
 770                         {
 771                                 folderPath = folderTemp.canonicalPath();
 772                         }
 773                         CoTaskMemFree(path);
 774                 }
 775         }
 776
 777         //Fall back to SHGetFolderPathW()
 778         if (folderPath.isEmpty())
 779         {
 780                 if (const SHGetFolderPath_t known_folders_fpGetFolderPath = MUtils::Win32Utils::resolve<SHGetFolderPath_t>(QLatin1String("shell32"), QLatin1String("SHGetFolderPathW")))
 781                 {
 782                         QScopedArrayPointer<WCHAR> path(new WCHAR[4096]);
 783                         if (known_folders_fpGetFolderPath(NULL, s_folders[folderId].csidl | CSIDL_FLAG_CREATE, NULL, NULL, path.data()) == S_OK)
 784                         {
 785                                 //MessageBoxW(0, path, L"SHGetFolderPathW", MB_TOPMOST);
 786                                 const QDir folderTemp = QDir(QDir::fromNativeSeparators(MUTILS_QSTR(path.data())));
 787                                 if (folderTemp.exists())
 788                                 {
 789                                         folderPath = folderTemp.canonicalPath();
 790                                 }
 791                         }
 792                 }
 793         }
 794
 795         //Update cache
 796         if (!folderPath.isEmpty())
 797         {
 798                 g_known_folders_data->insert(folderId, folderPath);
 799                 return (*g_known_folders_data)[folderId];
 800         }
 801
 802         return Internal::g_empty;
 803 }
 804
 805 ///////////////////////////////////////////////////////////////////////////////
 806 // CURRENT DATA & TIME
 807 ///////////////////////////////////////////////////////////////////////////////
 808
 809 QDate MUtils::OS::current_date(void)
 810 {
 811         const DWORD MAX_PROC = 1024;
 812         QScopedArrayPointer<DWORD> processes(new DWORD[MAX_PROC]);
 813         DWORD bytesReturned = 0;
 814
 815         if(!EnumProcesses(processes.data(), sizeof(DWORD) * MAX_PROC, &bytesReturned))
 816         {
 817                 return QDate::currentDate();
 818         }
 819
 820         const DWORD procCount = bytesReturned / sizeof(DWORD);
 821         ULARGE_INTEGER lastStartTime;
 822         memset(&lastStartTime, 0, sizeof(ULARGE_INTEGER));
 823
 824         for(DWORD i = 0; i < procCount; i++)
 825         {
 826                 if(HANDLE hProc = OpenProcess(PROCESS_QUERY_INFORMATION, FALSE, processes[i]))
 827                 {
 828                         FILETIME processTime[4];
 829                         if(GetProcessTimes(hProc, &processTime[0], &processTime[1], &processTime[2], &processTime[3]))
 830                         {
 831                                 ULARGE_INTEGER timeCreation;
 832                                 timeCreation.LowPart  = processTime[0].dwLowDateTime;
 833                                 timeCreation.HighPart = processTime[0].dwHighDateTime;
 834                                 if(timeCreation.QuadPart > lastStartTime.QuadPart)
 835                                 {
 836                                         lastStartTime.QuadPart = timeCreation.QuadPart;
 837                                 }
 838                         }
 839                         CloseHandle(hProc);
 840                 }
 841         }
 842
 843         FILETIME lastStartTime_fileTime;
 844         lastStartTime_fileTime.dwHighDateTime = lastStartTime.HighPart;
 845         lastStartTime_fileTime.dwLowDateTime  = lastStartTime.LowPart;
 846
 847         FILETIME lastStartTime_localTime;
 848         if(!FileTimeToLocalFileTime(&lastStartTime_fileTime, &lastStartTime_localTime))
 849         {
 850                 memcpy(&lastStartTime_localTime, &lastStartTime_fileTime, sizeof(FILETIME));
 851         }
 852
 853         SYSTEMTIME lastStartTime_system;
 854         if(!FileTimeToSystemTime(&lastStartTime_localTime, &lastStartTime_system))
 855         {
 856                 memset(&lastStartTime_system, 0, sizeof(SYSTEMTIME));
 857                 lastStartTime_system.wYear = 1970; lastStartTime_system.wMonth = lastStartTime_system.wDay = 1;
 858         }
 859
 860         const QDate currentDate = QDate::currentDate();
 861         const QDate processDate = QDate(lastStartTime_system.wYear, lastStartTime_system.wMonth, lastStartTime_system.wDay);
 862         return (currentDate >= processDate) ? currentDate : processDate;
 863 }
 864
 865 quint64 MUtils::OS::current_file_time(void)
 866 {
 867         FILETIME fileTime;
 868         GetSystemTimeAsFileTime(&fileTime);
 869
 870         ULARGE_INTEGER temp;
 871         temp.HighPart = fileTime.dwHighDateTime;
 872         temp.LowPart = fileTime.dwLowDateTime;
 873
 874         return temp.QuadPart;
 875 }
 876
 877 ///////////////////////////////////////////////////////////////////////////////
 878 // FILE PATH FROM FD
 879 ///////////////////////////////////////////////////////////////////////////////
 880
 881 typedef DWORD(_stdcall *GetPathNameByHandleFun)(HANDLE hFile, LPWSTR lpszFilePath, DWORD cchFilePath, DWORD dwFlags);
 882
 883 static QString get_file_path_drive_list(void)
 884 {
 885         QString list;
 886         const DWORD len = GetLogicalDriveStringsW(0, NULL);
 887         if (len > 0)
 888         {
 889                 if (wchar_t *const buffer = (wchar_t*) _malloca(sizeof(wchar_t) * len))
 890                 {
 891                         const DWORD ret = GetLogicalDriveStringsW(len, buffer);
 892                         if ((ret > 0) && (ret < len))
 893                         {
 894                                 const wchar_t *ptr = buffer;
 895                                 while (const size_t current_len = wcslen(ptr))
 896                                 {
 897                                         list.append(QChar(*reinterpret_cast<const ushort*>(ptr)));
 898                                         ptr += (current_len + 1);
 899                                 }
 900                         }
 901                         _freea(buffer);
 902                 }
 903         }
 904         return list;
 905 }
 906
 907 static void get_file_path_translate(QString &path)
 908 {
 909         static const DWORD BUFSIZE = 2048;
 910         wchar_t buffer[BUFSIZE], drive[3];
 911
 912         const QString driveList = get_file_path_drive_list();
 913         wcscpy_s(drive, 3, L"?:");
 914         for (const wchar_t *current = MUTILS_WCHR(driveList); *current; current++)
 915         {
 916                 drive[0] = (*current);
 917                 if (QueryDosDeviceW(drive, buffer, MAX_PATH))
 918                 {
 919                         const QString prefix = MUTILS_QSTR(buffer);
 920                         if (path.startsWith(prefix, Qt::CaseInsensitive))
 921                         {
 922                                 path.remove(0, prefix.length()).prepend(QLatin1Char(':')).prepend(QChar(*reinterpret_cast<const ushort*>(current)));
 923                                 break;
 924                         }
 925                 }
 926         }
 927 }
 928
 929 static QString get_file_path_fallback(const HANDLE &hFile)
 930 {
 931         QString filePath;
 932
 933         const HANDLE hFileMap = CreateFileMappingW(hFile, NULL, PAGE_READONLY, 0, 1, NULL);
 934         if (hFileMap)
 935         {
 936                 void *const pMem = MapViewOfFile(hFileMap, FILE_MAP_READ, 0, 0, 1);
 937                 if (pMem)
 938                 {
 939                         static const size_t BUFFSIZE = 2048;
 940                         wchar_t buffer[BUFFSIZE];
 941                         if (GetMappedFileNameW(GetCurrentProcess(), pMem, buffer, BUFFSIZE) > 0)
 942                         {
 943                                 filePath = MUTILS_QSTR(buffer);
 944                         }
 945                         UnmapViewOfFile(pMem);
 946                 }
 947                 CloseHandle(hFileMap);
 948         }
 949
 950         if (!filePath.isEmpty())
 951         {
 952                 get_file_path_translate(filePath);
 953         }
 954
 955         return filePath;
 956 }
 957
 958 QString MUtils::OS::get_file_path(const int &fd)
 959 {
 960         if (fd >= 0)
 961         {
 962                 const GetPathNameByHandleFun getPathNameByHandleFun = MUtils::Win32Utils::resolve<GetPathNameByHandleFun>(QLatin1String("kernel32"), QLatin1String("GetFinalPathNameByHandleW"));
 963                 if (!getPathNameByHandleFun)
 964                 {
 965                         return get_file_path_fallback((HANDLE)_get_osfhandle(fd));
 966                 }
 967
 968                 const HANDLE handle = (HANDLE) _get_osfhandle(fd);
 969                 const DWORD len = getPathNameByHandleFun(handle, NULL, 0, FILE_NAME_OPENED);
 970                 if (len > 0)
 971                 {
 972                         if (wchar_t *const buffer = (wchar_t*)_malloca(sizeof(wchar_t) * len))
 973                         {
 974                                 const DWORD ret = getPathNameByHandleFun(handle, buffer, len, FILE_NAME_OPENED);
 975                                 if ((ret > 0) && (ret < len))
 976                                 {
 977                                         const QString path(MUTILS_QSTR(buffer));
 978                                         return path.startsWith(QLatin1String("\\\\?\\")) ? path.mid(4) : path;
 979                                 }
 980                                 _freea(buffer);
 981                         }
 982                 }
 983         }
 984
 985         return QString();
 986 }
 987
 988 ///////////////////////////////////////////////////////////////////////////////
 989 // PROCESS ELEVATION
 990 ///////////////////////////////////////////////////////////////////////////////
 991
 992 static bool user_is_admin_helper(void)
 993 {
 994         HANDLE hToken = NULL;
 995         if(!OpenProcessToken(GetCurrentProcess(), TOKEN_QUERY, &hToken))
 996         {
 997                 return false;
 998         }
 999
1000         DWORD dwSize = 0;
1001         if(!GetTokenInformation(hToken, TokenGroups, NULL, 0, &dwSize))
1002         {
1003                 if(GetLastError() != ERROR_INSUFFICIENT_BUFFER)
1004                 {
1005                         CloseHandle(hToken);
1006                         return false;
1007                 }
1008         }
1009
1010         PTOKEN_GROUPS lpGroups = (PTOKEN_GROUPS) malloc(dwSize);
1011         if(!lpGroups)
1012         {
1013                 CloseHandle(hToken);
1014                 return false;
1015         }
1016
1017         if(!GetTokenInformation(hToken, TokenGroups, lpGroups, dwSize, &dwSize))
1018         {
1019                 free(lpGroups);
1020                 CloseHandle(hToken);
1021                 return false;
1022         }
1023
1024         PSID lpSid = NULL; SID_IDENTIFIER_AUTHORITY Authority = {SECURITY_NT_AUTHORITY};
1025         if(!AllocateAndInitializeSid(&Authority, 2, SECURITY_BUILTIN_DOMAIN_RID, DOMAIN_ALIAS_RID_ADMINS, 0, 0, 0, 0, 0, 0, &lpSid))
1026         {
1027                 free(lpGroups);
1028                 CloseHandle(hToken);
1029                 return false;
1030         }
1031
1032         bool bResult = false;
1033         for(DWORD i = 0; i < lpGroups->GroupCount; i++)
1034         {
1035                 if(EqualSid(lpSid, lpGroups->Groups[i].Sid))
1036                 {
1037                         bResult = true;
1038                         break;
1039                 }
1040         }
1041
1042         FreeSid(lpSid);
1043         free(lpGroups);
1044         CloseHandle(hToken);
1045         return bResult;
1046 }
1047
1048 bool MUtils::OS::is_elevated(bool *bIsUacEnabled)
1049 {
1050         if(bIsUacEnabled)
1051         {
1052                 *bIsUacEnabled = false;
1053         }
1054
1055         bool bIsProcessElevated = false;
1056         HANDLE hToken = NULL;
1057
1058         if(OpenProcessToken(GetCurrentProcess(), TOKEN_QUERY, &hToken))
1059         {
1060                 TOKEN_ELEVATION_TYPE tokenElevationType;
1061                 DWORD returnLength;
1062                 if(GetTokenInformation(hToken, TokenElevationType, &tokenElevationType, sizeof(TOKEN_ELEVATION_TYPE), &returnLength))
1063                 {
1064                         if(returnLength == sizeof(TOKEN_ELEVATION_TYPE))
1065                         {
1066                                 switch(tokenElevationType)
1067                                 {
1068                                 case TokenElevationTypeDefault:
1069                                         qDebug("Process token elevation type: Default -> UAC is disabled.\n");
1070                                         break;
1071                                 case TokenElevationTypeFull:
1072                                         qWarning("Process token elevation type: Full -> potential security risk!\n");
1073                                         bIsProcessElevated = true;
1074                                         if(bIsUacEnabled) *bIsUacEnabled = true;
1075                                         break;
1076                                 case TokenElevationTypeLimited:
1077                                         qDebug("Process token elevation type: Limited -> not elevated.\n");
1078                                         if(bIsUacEnabled) *bIsUacEnabled = true;
1079                                         break;
1080                                 default:
1081                                         qWarning("Unknown tokenElevationType value: %d", tokenElevationType);
1082                                         break;
1083                                 }
1084                         }
1085                         else
1086                         {
1087                                 qWarning("GetTokenInformation() return an unexpected size!");
1088                         }
1089                 }
1090                 CloseHandle(hToken);
1091         }
1092         else
1093         {
1094                 qWarning("Failed to open process token!");
1095         }
1096
1097         return bIsProcessElevated;
1098 }
1099
1100 bool MUtils::OS::user_is_admin(void)
1101 {
1102         bool isAdmin = false;
1103
1104         //Check for process elevation and UAC support first!
1105         if(MUtils::OS::is_elevated(&isAdmin))
1106         {
1107                 qWarning("Process is elevated -> user is admin!");
1108                 return true;
1109         }
1110
1111         //If not elevated and UAC is not available -> user must be in admin group!
1112         if(!isAdmin)
1113         {
1114                 qDebug("UAC is disabled/unavailable -> checking for Administrators group");
1115                 isAdmin = user_is_admin_helper();
1116         }
1117
1118         return isAdmin;
1119 }
1120
1121 ///////////////////////////////////////////////////////////////////////////////
1122 // NETWORK STATE
1123 ///////////////////////////////////////////////////////////////////////////////
1124
1125 int MUtils::OS::network_status(void)
1126 {
1127         DWORD dwFlags;
1128         const BOOL ret = IsNetworkAlive(&dwFlags);
1129         if(GetLastError() == 0)
1130         {
1131                 return (ret != FALSE) ? NETWORK_TYPE_YES : NETWORK_TYPE_NON;
1132         }
1133         return NETWORK_TYPE_ERR;
1134 }
1135
1136 ///////////////////////////////////////////////////////////////////////////////
1137 // MESSAGE HANDLER
1138 ///////////////////////////////////////////////////////////////////////////////
1139
1140 bool MUtils::OS::handle_os_message(const void *const message, long *result)
1141 {
1142         const MSG *const msg = reinterpret_cast<const MSG*>(message);
1143
1144         switch(msg->message)
1145         {
1146         case WM_QUERYENDSESSION:
1147                 qWarning("WM_QUERYENDSESSION message received!");
1148                 *result = MUtils::GUI::broadcast(MUtils::GUI::USER_EVENT_QUERYENDSESSION, false) ? TRUE : FALSE;
1149                 return true;
1150         case WM_ENDSESSION:
1151                 qWarning("WM_ENDSESSION message received!");
1152                 if(msg->wParam == TRUE)
1153                 {
1154                         MUtils::GUI::broadcast(MUtils::GUI::USER_EVENT_ENDSESSION, false);
1155                         MUtils::GUI::force_quit();
1156                         exit(1);
1157                 }
1158                 *result = 0;
1159                 return true;
1160         default:
1161                 /*ignore this message and let Qt handle it*/
1162                 return false;
1163         }
1164 }
1165
1166 ///////////////////////////////////////////////////////////////////////////////
1167 // SLEEP
1168 ///////////////////////////////////////////////////////////////////////////////
1169
1170 void MUtils::OS::sleep_ms(const size_t &duration)
1171 {
1172         Sleep((DWORD) duration);
1173 }
1174
1175 ///////////////////////////////////////////////////////////////////////////////
1176 // EXECUTABLE CHECK
1177 ///////////////////////////////////////////////////////////////////////////////
1178
1179 static int g_library_as_image_resource_supported = -1;
1180 static QReadWriteLock g_library_as_image_resource_supported_lock;
1181
1182 static bool library_as_image_resource_supported()
1183 {
1184         QReadLocker readLocker(&g_library_as_image_resource_supported_lock);
1185         if (g_library_as_image_resource_supported >= 0)
1186         {
1187                 return (g_library_as_image_resource_supported > 0);
1188         }
1189
1190         readLocker.unlock();
1191         QWriteLocker writeLocker(&g_library_as_image_resource_supported_lock);
1192
1193         if (g_library_as_image_resource_supported < 0)
1194         {
1195                 g_library_as_image_resource_supported = 0;
1196                 OSVERSIONINFOEXW osvi;
1197                 if (rtl_get_version(&osvi))
1198                 {
1199                         if ((osvi.dwPlatformId == VER_PLATFORM_WIN32_NT) && (osvi.dwMajorVersion >= 6U))
1200                         {
1201                                 g_library_as_image_resource_supported = 1;
1202                         }
1203                 }
1204         }
1205
1206         return (g_library_as_image_resource_supported > 0);
1207 }
1208
1209 bool MUtils::OS::is_executable_file(const QString &path)
1210 {
1211         DWORD binaryType;
1212         if(GetBinaryType(MUTILS_WCHR(QDir::toNativeSeparators(path)), &binaryType))
1213         {
1214                 return ((binaryType == SCS_32BIT_BINARY) || (binaryType == SCS_64BIT_BINARY));
1215         }
1216
1217         const DWORD errorCode = GetLastError();
1218         qWarning("GetBinaryType() failed with error: 0x%08X", errorCode);
1219         return false;
1220 }
1221
1222 bool MUtils::OS::is_library_file(const QString &path)
1223 {
1224         const DWORD flags = library_as_image_resource_supported() ? (LOAD_LIBRARY_AS_DATAFILE | LOAD_LIBRARY_AS_IMAGE_RESOURCE) : (LOAD_LIBRARY_AS_DATAFILE | DONT_RESOLVE_DLL_REFERENCES);
1225         if (const HMODULE hMod = LoadLibraryEx(MUTILS_WCHR(QDir::toNativeSeparators(path)), NULL, flags))
1226         {
1227                 FreeLibrary(hMod);
1228                 return true;
1229         }
1230
1231         const DWORD errorCode = GetLastError();
1232         qWarning("LoadLibraryEx() failed with error: 0x%08X", errorCode);
1233         return false;
1234 }
1235
1236 ///////////////////////////////////////////////////////////////////////////////
1237 // HIBERNATION / SHUTDOWN
1238 ///////////////////////////////////////////////////////////////////////////////
1239
1240 bool MUtils::OS::is_hibernation_supported(void)
1241 {
1242         bool hibernationSupported = false;
1243
1244         SYSTEM_POWER_CAPABILITIES pwrCaps;
1245         SecureZeroMemory(&pwrCaps, sizeof(SYSTEM_POWER_CAPABILITIES));
1246
1247         if(GetPwrCapabilities(&pwrCaps))
1248         {
1249                 hibernationSupported = pwrCaps.SystemS4 && pwrCaps.HiberFilePresent;
1250         }
1251
1252         return hibernationSupported;
1253 }
1254
1255 bool MUtils::OS::shutdown_computer(const QString &message, const unsigned long timeout, const bool forceShutdown, const bool hibernate)
1256 {
1257         HANDLE hToken = NULL;
1258
1259         if(OpenProcessToken(GetCurrentProcess(), TOKEN_ADJUST_PRIVILEGES | TOKEN_QUERY, &hToken))
1260         {
1261                 TOKEN_PRIVILEGES privileges;
1262                 memset(&privileges, 0, sizeof(TOKEN_PRIVILEGES));
1263                 privileges.PrivilegeCount = 1;
1264                 privileges.Privileges[0].Attributes = SE_PRIVILEGE_ENABLED;
1265
1266                 if(LookupPrivilegeValue(NULL, SE_SHUTDOWN_NAME, &privileges.Privileges[0].Luid))
1267                 {
1268                         if(AdjustTokenPrivileges(hToken, FALSE, &privileges, NULL, NULL, NULL))
1269                         {
1270                                 if(hibernate)
1271                                 {
1272                                         if(SetSuspendState(TRUE, TRUE, TRUE))
1273                                         {
1274                                                 return true;
1275                                         }
1276                                 }
1277                                 const DWORD reason = SHTDN_REASON_MAJOR_APPLICATION | SHTDN_REASON_FLAG_PLANNED;
1278                                 return InitiateSystemShutdownEx(NULL, const_cast<wchar_t*>(MUTILS_WCHR(message)), timeout, forceShutdown ? TRUE : FALSE, FALSE, reason);
1279                         }
1280                 }
1281         }
1282
1283         return false;
1284 }
1285
1286 ///////////////////////////////////////////////////////////////////////////////
1287 // FREE DISKSPACE
1288 ///////////////////////////////////////////////////////////////////////////////
1289
1290 bool MUtils::OS::free_diskspace(const QString &path, quint64 &freeSpace)
1291 {
1292         ULARGE_INTEGER freeBytesAvailable, totalNumberOfBytes, totalNumberOfFreeBytes;
1293         if(GetDiskFreeSpaceExW(reinterpret_cast<const wchar_t*>(QDir::toNativeSeparators(path).utf16()), &freeBytesAvailable, &totalNumberOfBytes, &totalNumberOfFreeBytes))
1294         {
1295                 freeSpace = freeBytesAvailable.QuadPart;
1296                 return true;;
1297         }
1298
1299         freeSpace = -1;
1300         return false;
1301 }
1302
1303 ///////////////////////////////////////////////////////////////////////////////
1304 // DRIVE TYPE
1305 ///////////////////////////////////////////////////////////////////////////////
1306
1307 static wchar_t get_drive_letter(const QString &path)
1308 {
1309         QString nativePath = QDir::toNativeSeparators(path);
1310         while (nativePath.startsWith("\\\\?\\") || nativePath.startsWith("\\\\.\\"))
1311         {
1312                 nativePath = QDir::toNativeSeparators(nativePath.mid(4));
1313         }
1314         if ((path.length() > 1) && (path[1] == QLatin1Char(':')))
1315         {
1316                 const wchar_t letter = static_cast<wchar_t>(path[0].unicode());
1317                 if (((letter >= 'A') && (letter <= 'Z')) || ((letter >= 'a') && (letter <= 'z')))
1318                 {
1319                         return towupper(letter);
1320                 }
1321         }
1322         return L'\0'; /*invalid path spec*/
1323 }
1324
1325 static QSet<DWORD> get_physical_drive_ids(const wchar_t drive_letter)
1326 {
1327         QSet<DWORD> physical_drives;
1328         wchar_t driveName[8];
1329         _snwprintf_s(driveName, 8, _TRUNCATE, L"\\\\.\\%c:", drive_letter);
1330         const HANDLE hDrive = CreateFileW(driveName, 0, FILE_SHARE_READ | FILE_SHARE_WRITE, NULL, OPEN_EXISTING, 0, NULL);
1331         if (hDrive && (hDrive != INVALID_HANDLE_VALUE))
1332         {
1333                 const size_t BUFF_SIZE = sizeof(VOLUME_DISK_EXTENTS) + (32U * sizeof(DISK_EXTENT));
1334                 VOLUME_DISK_EXTENTS *const diskExtents = (VOLUME_DISK_EXTENTS*)_malloca(BUFF_SIZE);
1335                 DWORD dwSize;
1336                 if (DeviceIoControl(hDrive, IOCTL_VOLUME_GET_VOLUME_DISK_EXTENTS, NULL, 0, (LPVOID)diskExtents, (DWORD)BUFF_SIZE, (LPDWORD)&dwSize, NULL))
1337                 {
1338                         for (DWORD index = 0U; index < diskExtents->NumberOfDiskExtents; ++index)
1339                         {
1340                                 physical_drives.insert(diskExtents->Extents[index].DiskNumber);
1341                         }
1342                 }
1343                 _freea(diskExtents);
1344                 CloseHandle(hDrive);
1345         }
1346         return physical_drives;
1347 }
1348
1349 static bool incurs_seek_penalty(const DWORD device_id)
1350 {
1351         wchar_t driveName[24];
1352         _snwprintf_s(driveName, 24, _TRUNCATE, L"\\\\?\\PhysicalDrive%u", device_id);
1353         const HANDLE hDevice = CreateFileW(driveName, 0, FILE_SHARE_READ | FILE_SHARE_WRITE, NULL, OPEN_EXISTING, 0, NULL);
1354         bool seeking_penalty = true;
1355         if (hDevice && (hDevice != INVALID_HANDLE_VALUE))
1356         {
1357                 STORAGE_PROPERTY_QUERY spq;
1358                 DEVICE_SEEK_PENALTY_DESCRIPTOR dspd;
1359                 memset(&spq, 0, sizeof(STORAGE_PROPERTY_QUERY));
1360                 spq.PropertyId = (STORAGE_PROPERTY_ID)StorageDeviceSeekPenaltyProperty;
1361                 spq.QueryType = PropertyStandardQuery;
1362                 DWORD dwSize;
1363                 if (DeviceIoControl(hDevice, IOCTL_STORAGE_QUERY_PROPERTY, (LPVOID)&spq, (DWORD)sizeof(spq), (LPVOID)&dspd, (DWORD)sizeof(dspd), (LPDWORD)&dwSize, NULL))
1364                 {
1365                         seeking_penalty = dspd.IncursSeekPenalty;
1366                 }
1367                 CloseHandle(hDevice);
1368         }
1369         return seeking_penalty;
1370 }
1371
1372 static bool is_fast_seeking_drive(const wchar_t drive_letter)
1373 {
1374         bool fast_seeking = false;
1375         const QSet<DWORD> physical_drive_ids = get_physical_drive_ids(drive_letter);
1376         if (!physical_drive_ids.empty())
1377         {
1378                 fast_seeking = true;
1379                 for (QSet<DWORD>::const_iterator iter = physical_drive_ids.constBegin(); iter != physical_drive_ids.constEnd(); ++iter)
1380                 {
1381                         fast_seeking = fast_seeking && (!incurs_seek_penalty(*iter));
1382                 }
1383         }
1384         return fast_seeking;
1385 }
1386
1387 MUtils::OS::drive_type_t MUtils::OS::get_drive_type(const QString &path, bool *fast_seeking)
1388 {
1389         drive_type_t driveType = DRIVE_TYPE_ERR;
1390         const wchar_t driveLetter = get_drive_letter(path);
1391         if (driveLetter)
1392         {
1393                 wchar_t driveName[8];
1394                 _snwprintf_s(driveName, 8, _TRUNCATE, L"\\\\.\\%c:\\", driveLetter);
1395                 switch (GetDriveTypeW(driveName))
1396                 {
1397                         case DRIVE_REMOVABLE: driveType = DRIVE_TYPE_FDD; break;
1398                         case DRIVE_FIXED:     driveType = DRIVE_TYPE_HDD; break;
1399                         case DRIVE_REMOTE:    driveType = DRIVE_TYPE_NET; break;
1400                         case DRIVE_CDROM:     driveType = DRIVE_TYPE_OPT; break;
1401                         case DRIVE_RAMDISK:   driveType = DRIVE_TYPE_RAM; break;
1402                 }
1403         }
1404         if (fast_seeking)
1405         {
1406                 if (driveType == DRIVE_TYPE_HDD)
1407                 {
1408                         *fast_seeking = is_fast_seeking_drive(driveLetter);
1409                 }
1410                 else
1411                 {
1412                         *fast_seeking = (driveType == DRIVE_TYPE_RAM);
1413                 }
1414         }
1415         return driveType;
1416 }
1417
1418 ///////////////////////////////////////////////////////////////////////////////
1419 // SHELL OPEN
1420 ///////////////////////////////////////////////////////////////////////////////
1421
1422 bool MUtils::OS::shell_open(const QWidget *parent, const QString &url, const QString &parameters, const QString &directory, const bool explore)
1423 {
1424         return ((int) ShellExecuteW((parent ? reinterpret_cast<HWND>(parent->winId()) : NULL), (explore ? L"explore" : L"open"), MUTILS_WCHR(url), ((!parameters.isEmpty()) ? MUTILS_WCHR(parameters) : NULL), ((!directory.isEmpty()) ? MUTILS_WCHR(directory) : NULL), SW_SHOW)) > 32;
1425 }
1426
1427 bool MUtils::OS::shell_open(const QWidget *parent, const QString &url, const bool explore)
1428 {
1429         return shell_open(parent, url, QString(), QString(), explore);
1430 }
1431
1432 ///////////////////////////////////////////////////////////////////////////////
1433 // OPEN MEDIA FILE
1434 ///////////////////////////////////////////////////////////////////////////////
1435
1436 bool MUtils::OS::open_media_file(const QString &mediaFilePath)
1437 {
1438         const static wchar_t *registryPrefix[2] = { L"SOFTWARE\\", L"SOFTWARE\\Wow6432Node\\" };
1439         const static wchar_t *registryKeys[3] =
1440         {
1441                 L"Microsoft\\Windows\\CurrentVersion\\Uninstall\\{97D341C8-B0D1-4E4A-A49A-C30B52F168E9}",
1442                 L"Microsoft\\Windows\\CurrentVersion\\Uninstall\\{DB9E4EAB-2717-499F-8D56-4CC8A644AB60}",
1443                 L"foobar2000"
1444         };
1445         const static wchar_t *appNames[4] = { L"smplayer_portable.exe", L"smplayer.exe", L"MPUI.exe", L"foobar2000.exe" };
1446         const static wchar_t *valueNames[2] = { L"InstallLocation", L"InstallDir" };
1447
1448         for(size_t i = 0; i < 3; i++)
1449         {
1450                 for(size_t j = 0; j < 2; j++)
1451                 {
1452                         QString mplayerPath;
1453                         HKEY registryKeyHandle = NULL;
1454
1455                         const QString currentKey = MUTILS_QSTR(registryPrefix[j]).append(MUTILS_QSTR(registryKeys[i]));
1456                         if(RegOpenKeyExW(HKEY_LOCAL_MACHINE, MUTILS_WCHR(currentKey), 0, KEY_READ, &registryKeyHandle) == ERROR_SUCCESS)
1457                         {
1458                                 for(size_t k = 0; k < 2; k++)
1459                                 {
1460                                         wchar_t Buffer[4096];
1461                                         DWORD BuffSize = sizeof(wchar_t*) * 4096;
1462                                         DWORD DataType = REG_NONE;
1463                                         if(RegQueryValueExW(registryKeyHandle, valueNames[k], 0, &DataType, reinterpret_cast<BYTE*>(Buffer), &BuffSize) == ERROR_SUCCESS)
1464                                         {
1465                                                 if((DataType == REG_SZ) || (DataType == REG_EXPAND_SZ) || (DataType == REG_LINK))
1466                                                 {
1467                                                         mplayerPath = MUTILS_QSTR(Buffer);
1468                                                         break;
1469                                                 }
1470                                         }
1471                                 }
1472                                 RegCloseKey(registryKeyHandle);
1473                         }
1474
1475                         if(!mplayerPath.isEmpty())
1476                         {
1477                                 QDir mplayerDir(mplayerPath);
1478                                 if(mplayerDir.exists())
1479                                 {
1480                                         for(size_t k = 0; k < 4; k++)
1481                                         {
1482                                                 if(mplayerDir.exists(MUTILS_QSTR(appNames[k])))
1483                                                 {
1484                                                         qDebug("Player found at:\n%s\n", MUTILS_UTF8(mplayerDir.absoluteFilePath(MUTILS_QSTR(appNames[k]))));
1485                                                         QProcess::startDetached(mplayerDir.absoluteFilePath(MUTILS_QSTR(appNames[k])), QStringList() << QDir::toNativeSeparators(mediaFilePath));
1486                                                         return true;
1487                                                 }
1488                                         }
1489                                 }
1490                         }
1491                 }
1492         }
1493         return false;
1494 }
1495
1496 ///////////////////////////////////////////////////////////////////////////////
1497 // DEBUGGER CHECK
1498 ///////////////////////////////////////////////////////////////////////////////
1499
1500 static bool change_process_priority_helper(const HANDLE hProcess, const int priority)
1501 {
1502         bool ok = false;
1503
1504         switch(qBound(-2, priority, 2))
1505         {
1506         case 2:
1507                 ok = (SetPriorityClass(hProcess, HIGH_PRIORITY_CLASS) == TRUE);
1508                 break;
1509         case 1:
1510                 if(!(ok = (SetPriorityClass(hProcess, ABOVE_NORMAL_PRIORITY_CLASS) == TRUE)))
1511                 {
1512                         ok = (SetPriorityClass(hProcess, HIGH_PRIORITY_CLASS) == TRUE);
1513                 }
1514                 break;
1515         case 0:
1516                 ok = (SetPriorityClass(hProcess, NORMAL_PRIORITY_CLASS) == TRUE);
1517                 break;
1518         case -1:
1519                 if(!(ok = (SetPriorityClass(hProcess, BELOW_NORMAL_PRIORITY_CLASS) == TRUE)))
1520                 {
1521                         ok = (SetPriorityClass(hProcess, IDLE_PRIORITY_CLASS) == TRUE);
1522                 }
1523                 break;
1524         case -2:
1525                 ok = (SetPriorityClass(hProcess, IDLE_PRIORITY_CLASS) == TRUE);
1526                 break;
1527         }
1528
1529         return ok;
1530 }
1531
1532 bool MUtils::OS::change_process_priority(const int priority)
1533 {
1534         return change_process_priority_helper(GetCurrentProcess(), priority);
1535 }
1536
1537 bool MUtils::OS::change_process_priority(const QProcess *proc, const int priority)
1538 {
1539         if(Q_PID qPid = proc->pid())
1540         {
1541                 return change_process_priority_helper(qPid->hProcess, priority);
1542         }
1543         else
1544         {
1545                 return false;
1546         }
1547 }
1548
1549 ///////////////////////////////////////////////////////////////////////////////
1550 // PROCESS ID
1551 ///////////////////////////////////////////////////////////////////////////////
1552
1553 quint32 MUtils::OS::process_id(void)
1554 {
1555         return GetCurrentProcessId();
1556 }
1557
1558 quint32 MUtils::OS::process_id(const QProcess *const proc)
1559 {
1560         PROCESS_INFORMATION *procInf = proc->pid();
1561         return (procInf) ? procInf->dwProcessId : 0;
1562 }
1563
1564 quint32 MUtils::OS::thread_id(void)
1565 {
1566         return GetCurrentThreadId();
1567 }
1568
1569 quint32 MUtils::OS::thread_id(const QProcess *const proc)
1570 {
1571         PROCESS_INFORMATION *procInf = proc->pid();
1572         return (procInf) ? procInf->dwThreadId : 0;
1573 }
1574
1575 ///////////////////////////////////////////////////////////////////////////////
1576 // PROCESS SUSPEND/RESUME
1577 ///////////////////////////////////////////////////////////////////////////////
1578
1579 bool MUtils::OS::suspend_process(const QProcess *proc, const bool suspend)
1580 {
1581         if(Q_PID pid = proc->pid())
1582         {
1583                 if(suspend)
1584                 {
1585                         return (SuspendThread(pid->hThread) != ((DWORD) -1));
1586                 }
1587                 else
1588                 {
1589                         return (ResumeThread(pid->hThread)  != ((DWORD) -1));
1590                 }
1591         }
1592         else
1593         {
1594                 return false;
1595         }
1596 }
1597
1598 ///////////////////////////////////////////////////////////////////////////////
1599 // SYSTEM TIMER
1600 ///////////////////////////////////////////////////////////////////////////////
1601
1602 bool MUtils::OS::setup_timer_resolution(const quint32 &interval)
1603 {
1604         return timeBeginPeriod(interval) == TIMERR_NOERROR;
1605 }
1606
1607 bool MUtils::OS::reset_timer_resolution(const quint32 &interval)
1608 {
1609         return timeEndPeriod(interval) == TIMERR_NOERROR;
1610 }
1611
1612 ///////////////////////////////////////////////////////////////////////////////
1613 // SET FILE TIME
1614 ///////////////////////////////////////////////////////////////////////////////
1615
1616 static QScopedPointer<QDateTime> s_epoch;
1617 static QReadWriteLock            s_epochLock;
1618
1619 static const QDateTime *get_epoch(void)
1620 {
1621         QReadLocker rdLock(&s_epochLock);
1622
1623         if (s_epoch.isNull())
1624         {
1625                 rdLock.unlock();
1626                 QWriteLocker wrLock(&s_epochLock);
1627                 if (s_epoch.isNull())
1628                 {
1629                         s_epoch.reset(new QDateTime(QDate(1601, 1, 1), QTime(0, 0, 0, 0), Qt::UTC));
1630                 }
1631                 wrLock.unlock();
1632                 rdLock.relock();
1633         }
1634
1635         return s_epoch.data();
1636 }
1637
1638 static FILETIME *qt_time_to_file_time(FILETIME *const fileTime, const QDateTime &dateTime)
1639 {
1640         memset(fileTime, 0, sizeof(FILETIME));
1641
1642         if (const QDateTime *const epoch = get_epoch())
1643         {
1644                 const qint64 msecs = epoch->msecsTo(dateTime);
1645                 if (msecs > 0)
1646                 {
1647                         const quint64 ticks = 10000U * quint64(msecs);
1648                         fileTime->dwHighDateTime = ((ticks >> 32) & 0xFFFFFFFF);
1649                         fileTime->dwLowDateTime = (ticks & 0xFFFFFFFF);
1650                         return fileTime;
1651                 }
1652         }
1653
1654         return NULL;
1655 }
1656
1657 static bool set_file_time(const HANDLE hFile, const QDateTime &created, const QDateTime &lastMod, const QDateTime &lastAcc)
1658 {
1659         FILETIME ftCreated, ftLastMod, ftLastAcc;
1660
1661         FILETIME *const pCreated = created.isValid() ? qt_time_to_file_time(&ftCreated, created) : NULL;
1662         FILETIME *const pLastMod = lastMod.isValid() ? qt_time_to_file_time(&ftLastMod, lastMod) : NULL;
1663         FILETIME *const pLastAcc = lastAcc.isValid() ? qt_time_to_file_time(&ftLastAcc, lastAcc) : NULL;
1664
1665         if (pCreated || pLastMod || pLastAcc)
1666         {
1667                 return (SetFileTime(hFile, pCreated, pLastAcc, pLastMod) != FALSE);
1668         }
1669
1670         return false;
1671 }
1672
1673 bool MUtils::OS::set_file_time(const QFile &file, const QDateTime &created, const QDateTime &lastMod, const QDateTime &lastAcc)
1674 {
1675         const int fd = file.handle();
1676         if (fd >= 0)
1677         {
1678                 return set_file_time((HANDLE)_get_osfhandle(fd), created, lastMod, lastAcc);
1679         }
1680         return false;
1681 }
1682
1683 bool MUtils::OS::set_file_time(const QString &path, const QDateTime &created, const QDateTime &lastMod, const QDateTime &lastAcc)
1684 {
1685         const HANDLE hFile = CreateFileW(MUTILS_WCHR(path), FILE_WRITE_ATTRIBUTES, FILE_SHARE_READ, NULL, OPEN_EXISTING, 0, 0);
1686         bool okay = false;
1687         if ((hFile != NULL) && (hFile != INVALID_HANDLE_VALUE))
1688         {
1689                 okay = set_file_time(hFile, created, lastMod, lastAcc);
1690                 CloseHandle(hFile);
1691         }
1692         return okay;
1693 }
1694
1695 ///////////////////////////////////////////////////////////////////////////////
1696 // CHECK KEY STATE
1697 ///////////////////////////////////////////////////////////////////////////////
1698
1699 bool MUtils::OS::check_key_state_esc(void)
1700 {
1701         return (GetAsyncKeyState(VK_ESCAPE) & 0x0001) != 0;
1702 }
1703
1704 ///////////////////////////////////////////////////////////////////////////////
1705 // SHELL CHANGE NOTIFICATION
1706 ///////////////////////////////////////////////////////////////////////////////
1707
1708 void MUtils::OS::shell_change_notification(void)
1709 {
1710         SHChangeNotify(SHCNE_ASSOCCHANGED, SHCNF_IDLIST, NULL, NULL);
1711 }
1712
1713 ///////////////////////////////////////////////////////////////////////////////
1714 // WOW64 REDIRECTION
1715 ///////////////////////////////////////////////////////////////////////////////
1716
1717 typedef BOOL (_stdcall *Wow64DisableWow64FsRedirectionFun)(void *OldValue);
1718 typedef BOOL (_stdcall *Wow64RevertWow64FsRedirectionFun )(void *OldValue);
1719
1720 bool MUtils::OS::wow64fsredir_disable(void *oldValue)
1721 {
1722         const Wow64DisableWow64FsRedirectionFun wow64redir_disable = MUtils::Win32Utils::resolve<Wow64DisableWow64FsRedirectionFun>(QLatin1String("kernel32"), QLatin1String("Wow64DisableWow64FsRedirection"));
1723         if(wow64redir_disable)
1724         {
1725                 if (wow64redir_disable(oldValue))
1726                 {
1727                         return true;
1728                 }
1729         }
1730         return false;
1731 }
1732
1733 bool MUtils::OS::wow64fsredir_revert(void *oldValue)
1734 {
1735         const Wow64RevertWow64FsRedirectionFun wow64redir_disable = MUtils::Win32Utils::resolve<Wow64RevertWow64FsRedirectionFun>(QLatin1String("kernel32"), QLatin1String("Wow64RevertWow64FsRedirection"));
1736         if (wow64redir_disable)
1737         {
1738                 if (wow64redir_disable(oldValue))
1739                 {
1740                         return true;
1741                 }
1742         }
1743         return false;
1744 }
1745
1746 ///////////////////////////////////////////////////////////////////////////////
1747 // DEBUGGER CHECK
1748 ///////////////////////////////////////////////////////////////////////////////
1749
1750 QString MUtils::OS::get_envvar(const QString &name)
1751 {
1752         wchar_t *buffer = NULL;
1753         size_t requiredSize = 0, buffSize = 0;
1754         QString result;
1755
1756         forever
1757         {
1758                 //Adjust the buffer size as required first!
1759                 if (buffSize < requiredSize)
1760                 {
1761                         if (buffer)
1762                         {
1763                                 _freea(buffer);
1764                         }
1765                         if (!(buffer = (wchar_t*)_malloca(sizeof(wchar_t) * requiredSize)))
1766                         {
1767                                 break; /*out of memory error!*/
1768                         }
1769                         buffSize = requiredSize;
1770                 }
1771
1772                 //Try to fetch the environment variable now
1773                 const errno_t error = _wgetenv_s(&requiredSize, buffer, buffSize, MUTILS_WCHR(name));
1774                 if(!error)
1775                 {
1776                         if (requiredSize > 0)
1777                         {
1778                                 result = MUTILS_QSTR(buffer);
1779                         }
1780                         break; /*done*/
1781                 }
1782                 else if (error != ERANGE)
1783                 {
1784                         break; /*somethging else went wrong!*/
1785                 }
1786         }
1787
1788         if (buffer)
1789         {
1790                 _freea(buffer);
1791                 buffSize = 0;
1792                 buffer = NULL;
1793         }
1794
1795         return result;
1796 }
1797
1798 bool MUtils::OS::set_envvar(const QString &name, const QString &value)
1799 {
1800         if (!_wputenv_s(MUTILS_WCHR(name), MUTILS_WCHR(value)))
1801         {
1802                 return true;
1803         }
1804         return false;
1805 }
1806
1807 ///////////////////////////////////////////////////////////////////////////////
1808 // NULL DEVICE
1809 ///////////////////////////////////////////////////////////////////////////////
1810
1811 static const QLatin1String NULL_DEVICE("NUL");
1812
1813 const QLatin1String &MUtils::OS::null_device(void)
1814 {
1815         return NULL_DEVICE;
1816 }
1817
1818 ///////////////////////////////////////////////////////////////////////////////
1819 // DEBUGGER CHECK
1820 ///////////////////////////////////////////////////////////////////////////////
1821
1822 #if (!(MUTILS_DEBUG))
1823 static __forceinline bool is_debugger_present(void)
1824 {
1825         __try
1826         {
1827                 CloseHandle((HANDLE)((DWORD_PTR)-3));
1828         }
1829         __except(1)
1830         {
1831                 return true;
1832         }
1833
1834         BOOL bHaveDebugger = FALSE;
1835         if(CheckRemoteDebuggerPresent(GetCurrentProcess(), &bHaveDebugger))
1836         {
1837                 if(bHaveDebugger) return true;
1838         }
1839
1840         return IsDebuggerPresent();
1841 }
1842 static __forceinline bool check_debugger_helper(void)
1843 {
1844         if(is_debugger_present())
1845         {
1846                 MUtils::OS::fatal_exit(L"Not a debug build. Please unload debugger and try again!");
1847                 return true;
1848         }
1849         return false;
1850 }
1851 #else
1852 #define check_debugger_helper() (false)
1853 #endif
1854
1855 void MUtils::OS::check_debugger(void)
1856 {
1857         check_debugger_helper();
1858 }
1859
1860 static volatile bool g_debug_check = check_debugger_helper();
1861
1862 ///////////////////////////////////////////////////////////////////////////////
1863 // FATAL EXIT
1864 ///////////////////////////////////////////////////////////////////////////////
1865
1866 static MUtils::Internal::CriticalSection g_fatal_exit_lock;
1867 static QAtomicInt g_fatal_exit_flag;
1868
1869 static DWORD WINAPI fatal_exit_helper(LPVOID lpParameter)
1870 {
1871         MUtils::OS::system_message_err(L"GURU MEDITATION", (LPWSTR) lpParameter);
1872         return 0;
1873 }
1874
1875 void MUtils::OS::fatal_exit(const wchar_t* const errorMessage)
1876 {
1877         g_fatal_exit_lock.enter();
1878
1879         if(!g_fatal_exit_flag.testAndSetOrdered(0, 1))
1880         {
1881                 return; /*prevent recursive invocation*/
1882         }
1883
1884         if(g_main_thread_id != GetCurrentThreadId())
1885         {
1886                 if(HANDLE hThreadMain = OpenThread(THREAD_SUSPEND_RESUME, FALSE, g_main_thread_id))
1887                 {
1888                         SuspendThread(hThreadMain); /*stop main thread*/
1889                 }
1890         }
1891
1892         if(HANDLE hThread = CreateThread(NULL, 0, fatal_exit_helper, (LPVOID)errorMessage, 0, NULL))
1893         {
1894                 WaitForSingleObject(hThread, INFINITE);
1895         }
1896         else
1897         {
1898                 fatal_exit_helper((LPVOID)errorMessage);
1899         }
1900
1901         for(;;)
1902         {
1903                 TerminateProcess(GetCurrentProcess(), 666);
1904         }
1905 }
1906
1907 ///////////////////////////////////////////////////////////////////////////////