src/OSSupport_Win32.cpp

   1 ///////////////////////////////////////////////////////////////////////////////
   2 // MuldeR's Utilities for Qt
   3 // Copyright (C) 2004-2019 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 *SHGetKnownFolderPathProc)(const GUID &rfid, DWORD dwFlags, HANDLE hToken, PWSTR *ppszPath);
 694 typedef HRESULT (WINAPI *SHGetFolderPathProc)(HWND hwndOwner, int nFolder, HANDLE hToken, DWORD dwFlags, LPWSTR pszPath);
 695
 696 static const struct
 697 {
 698         MUtils::OS::known_folder_t id;
 699         INT32 csidl;
 700         GUID known_folder_id;
 701 }
 702 s_known_folders_lut[] =
 703 {
 704         { MUtils::OS::FOLDER_PROFILE_USER,  0x0028, { 0x5E6C858F, 0x0E22, 0x4760, { 0x9A, 0xFE, 0xEA, 0x33, 0x17, 0xB6, 0x71, 0x73 } } },  //CSIDL_PROFILE
 705         { MUtils::OS::FOLDER_PROFILE_PUBL,  0x0000, { 0XDFDF76A2, 0XC82A, 0X4D63, { 0X90, 0X6A, 0X56, 0X44, 0XAC, 0X45, 0X73, 0X85 } } },  //FOLDERID_Public
 706         { MUtils::OS::FOLDER_APPDATA_ROAM,  0x001A, { 0x3EB685DB, 0x65F9, 0x4CF6, { 0xA0, 0x3A, 0xE3, 0xEF, 0x65, 0x72, 0x9F, 0x3D } } },  //CSIDL_APPDATA
 707         { MUtils::OS::FOLDER_APPDATA_LOCA,  0x001C, { 0xF1B32785, 0x6FBA, 0x4FCF, { 0x9D, 0x55, 0x7B, 0x8E, 0x7F, 0x15, 0x70, 0x91 } } },  //CSIDL_LOCAL_APPDATA
 708         { MUtils::OS::FOLDER_DOCS_USER,     0x0005, { 0xFDD39AD0, 0x238F, 0x46AF, { 0xAD, 0xB4, 0x6C, 0x85, 0x48, 0x03, 0x69, 0xC7 } } },  //CSIDL_MYDOCUMENTS
 709         { MUtils::OS::FOLDER_DOCS_PUBL,     0x002E, { 0xED4824AF, 0xDCE4, 0x45A8, { 0x81, 0xE2, 0xFC, 0x79, 0x65, 0x08, 0x36, 0x34 } } },  //CSIDL_COMMON_DOCUMENTS
 710         { MUtils::OS::FOLDER_DESKTOP_USER,  0x0010, { 0xB4BFCC3A, 0xDB2C, 0x424C, { 0xB0, 0x29, 0x7F, 0xE9, 0x9A, 0x87, 0xC6, 0x41 } } },  //CSIDL_DESKTOPDIRECTORY
 711         { MUtils::OS::FOLDER_DESKTOP_PUBL,  0x0019, { 0xC4AA340D, 0xF20F, 0x4863, { 0xAF, 0xEF, 0xF8, 0x7E, 0xF2, 0xE6, 0xBA, 0x25 } } },  //CSIDL_COMMON_DESKTOPDIRECTORY
 712         { MUtils::OS::FOLDER_PICTURES_USER, 0x0027, { 0X33E28130, 0X4E1E, 0X4676, { 0X83, 0X5A, 0X98, 0X39, 0X5C, 0X3B, 0XC3, 0XBB } } },  //CSIDL_MYPICTURES
 713         { MUtils::OS::FOLDER_PICTURES_PUBL, 0x0036, { 0XB6EBFB86, 0X6907, 0X413C, { 0X9A, 0XF7, 0X4F, 0XC2, 0XAB, 0XF0, 0X7C, 0XC5 } } },  //CSIDL_COMMON_PICTURES
 714         { MUtils::OS::FOLDER_MUSIC_USER,    0x000D, { 0X4BD8D571, 0X6D19, 0X48D3, { 0XBE, 0X97, 0X42, 0X22, 0X20, 0X08, 0X0E, 0X43 } } },  //CSIDL_MYMUSIC
 715         { MUtils::OS::FOLDER_MUSIC_PUBL,    0x0035, { 0X3214FAB5, 0X9757, 0X4298, { 0XBB, 0X61, 0X92, 0XA9, 0XDE, 0XAA, 0X44, 0XFF } } },  //CSIDL_COMMON_MUSIC
 716         { MUtils::OS::FOLDER_VIDEO_USER,    0X000E, { 0X18989B1D, 0X99B5, 0X455B, { 0X84, 0X1C, 0XAB, 0X7C, 0X74, 0XE4, 0XDD, 0XFC } } },  //CSIDL_MYVIDEO
 717         { MUtils::OS::FOLDER_VIDEO_PUBL,    0x0037, { 0X2400183A, 0X6185, 0X49FB, { 0XA2, 0XD8, 0X4A, 0X39, 0X2A, 0X60, 0X2B, 0XA3 } } },  //CSIDL_COMMON_VIDEO
 718         { MUtils::OS::FOLDER_PROGRAMFILES,  0x0026, { 0x905E63B6, 0xC1BF, 0x494E, { 0xB2, 0x9C, 0x65, 0xB7, 0x32, 0xD3, 0xD2, 0x1A } } },  //CSIDL_PROGRAM_FILES
 719         { MUtils::OS::FOLDER_SYSROOT,       0x0024, { 0xF38BF404, 0x1D43, 0x42F2, { 0x93, 0x05, 0x67, 0xDE, 0x0B, 0x28, 0xFC, 0x23 } } },  //CSIDL_WINDOWS
 720         { MUtils::OS::FOLDER_SYSTEM_DEF,    0x0025, { 0x1AC14E77, 0x02E7, 0x4E5D, { 0xB7, 0x44, 0x2E, 0xB1, 0xAE, 0x51, 0x98, 0xB7 } } },  //CSIDL_SYSTEM
 721         { MUtils::OS::FOLDER_SYSTEM_X86,    0x0029, { 0xD65231B0, 0xB2F1, 0x4857, { 0xA4, 0xCE, 0xA8, 0xE7, 0xC6, 0xEA, 0x7D, 0x27 } } },  //CSIDL_SYSTEMX86
 722         { static_cast<MUtils::OS::known_folder_t>(0) }
 723 };
 724
 725 static QString known_folder_verify(const wchar_t *const path)
 726 {
 727         CSIDL_PROFILE;
 728         const QDir folderPath = QDir(QDir::fromNativeSeparators(MUTILS_QSTR(path)));
 729         if (folderPath.exists())
 730         {
 731                 const QString absolutePath = folderPath.absolutePath();
 732                 const HANDLE handle = CreateFileW(MUTILS_WCHR(QDir::toNativeSeparators(absolutePath)), 0U, FILE_SHARE_READ | FILE_SHARE_WRITE, NULL, OPEN_EXISTING, FILE_FLAG_BACKUP_SEMANTICS, NULL);
 733                 if (handle != INVALID_HANDLE_VALUE)
 734                 {
 735                         SetHandleInformation(handle, HANDLE_FLAG_PROTECT_FROM_CLOSE, HANDLE_FLAG_PROTECT_FROM_CLOSE);
 736                         return absolutePath;
 737                 }
 738         }
 739
 740         return QString(); /*failed*/
 741 }
 742
 743 static QString known_folder_fallback(const size_t folderId)
 744 {
 745         static const DWORD s_shgfpTypes[3] =
 746         {
 747                 0, /*SHGFP_TYPE_CURRENT*/
 748                 1, /*SHGFP_TYPE_DEFAULT*/
 749                 MAXDWORD
 750         };
 751
 752         static const INT32 s_shgfpFlags[3] =
 753         {
 754                 0x0000, /*No extra flags*/
 755                 0x8000, /*SHGFP_FLAG_CREATE*/
 756                 MAXINT32
 757         };
 758
 759         if (s_known_folders_lut[folderId].csidl)
 760         {
 761                 const SHGetFolderPathProc getFolderPath = MUtils::Win32Utils::resolve<SHGetFolderPathProc>(QLatin1String("shell32"), QLatin1String("SHGetFolderPathW"));
 762                 if (getFolderPath)
 763                 {
 764                         QVector<WCHAR> pathBuffer(MAX_PATH);
 765                         for (size_t i = 0; s_shgfpTypes[i] != MAXDWORD; ++i)
 766                         {
 767                                 for (size_t j = 0; s_shgfpFlags[j] != MAXINT32; ++j)
 768                                 {
 769                                         if (getFolderPath(NULL, s_known_folders_lut[folderId].csidl | s_shgfpFlags[j], NULL, s_shgfpTypes[i], pathBuffer.data()) == S_OK)
 770                                         {
 771                                                 //MessageBoxW(0, path, L"SHGetFolderPathW", MB_TOPMOST);
 772                                                 const QString folderPath = known_folder_verify(pathBuffer.data());
 773                                                 if (!folderPath.isEmpty())
 774                                                 {
 775                                                         return folderPath;
 776                                                 }
 777                                         }
 778                                 }
 779                         }
 780                 }
 781         }
 782
 783         return QString(); /*failed!*/
 784 }
 785
 786 static QString known_folder_detect(const size_t folderId)
 787 {
 788         typedef enum
 789         {
 790                 KF_FLAG_DEFAULT      = 0x00000000,
 791                 KF_FLAG_DEFAULT_PATH = 0x00000400,
 792                 KF_FLAG_CREATE       = 0x00008000
 793         }
 794         kf_flag_t;
 795
 796         static const DWORD s_kfFlags[5] =
 797         {
 798                 KF_FLAG_DEFAULT,
 799                 KF_FLAG_CREATE,
 800                 KF_FLAG_DEFAULT_PATH,
 801                 KF_FLAG_DEFAULT_PATH | KF_FLAG_CREATE,
 802                 MAXDWORD
 803         };
 804
 805         const SHGetKnownFolderPathProc getKnownFolderPath = MUtils::Win32Utils::resolve<SHGetKnownFolderPathProc>(QLatin1String("shell32"), QLatin1String("SHGetKnownFolderPath"));
 806         if (getKnownFolderPath)
 807         {
 808                 for (size_t i = 0; s_kfFlags[i] != MAXDWORD; ++i)
 809                 {
 810                         WCHAR* path = NULL;
 811                         if (getKnownFolderPath(s_known_folders_lut[folderId].known_folder_id, s_kfFlags[i], NULL, &path) == S_OK)
 812                         {
 813                                 //MessageBoxW(0, path, L"SHGetKnownFolderPath", MB_TOPMOST);
 814                                 const QString folderPath = known_folder_verify(path);
 815                                 CoTaskMemFree(path);
 816                                 if (!folderPath.isEmpty())
 817                                 {
 818                                         return folderPath;
 819                                 }
 820                         }
 821                 }
 822         }
 823
 824         return known_folder_fallback(folderId); /*fallback!*/
 825 }
 826
 827 static size_t known_folder_decode(const MUtils::OS::known_folder_t folder_id)
 828 {
 829         for (size_t i = 0; s_known_folders_lut[i].id; ++i)
 830         {
 831                 if (s_known_folders_lut[i].id == folder_id)
 832                 {
 833                         return i;
 834                 }
 835         }
 836         qWarning("Invalid 'known' folder was requested!");
 837         return SIZE_MAX;
 838 }
 839
 840 const QString &MUtils::OS::known_folder(const known_folder_t folder_id)
 841 {
 842         //Map to numeric id
 843         const size_t folderId = known_folder_decode(folder_id);
 844         if (folderId == SIZE_MAX)
 845         {
 846                 return Internal::g_empty;
 847         }
 848
 849         //Obtain read lock
 850         QReadLocker readLock(&g_known_folders_lock);
 851
 852         //Already in cache?
 853         if(!g_known_folders_data.isNull())
 854         {
 855                 if(g_known_folders_data->contains(folderId))
 856                 {
 857                         return (*g_known_folders_data)[folderId];
 858                 }
 859         }
 860
 861         //Obtain write lock to initialize
 862         readLock.unlock();
 863         QWriteLocker writeLock(&g_known_folders_lock);
 864
 865         //Still not in cache?
 866         if(!g_known_folders_data.isNull())
 867         {
 868                 if(g_known_folders_data->contains(folderId))
 869                 {
 870                         return (*g_known_folders_data)[folderId];
 871                 }
 872         }
 873
 874         //Initialize on first call
 875         if(g_known_folders_data.isNull())
 876         {
 877                 g_known_folders_data.reset(new QHash<size_t, QString>());
 878         }
 879
 880         //Detect path now!
 881         const QString folderPath = known_folder_detect(folderId);
 882
 883         //Update cache
 884         if (!folderPath.isEmpty())
 885         {
 886                 g_known_folders_data->insert(folderId, folderPath);
 887                 return (*g_known_folders_data)[folderId];
 888         }
 889
 890         return Internal::g_empty;
 891 }
 892
 893 ///////////////////////////////////////////////////////////////////////////////
 894 // CURRENT DATA & TIME
 895 ///////////////////////////////////////////////////////////////////////////////
 896
 897 QDate MUtils::OS::current_date(void)
 898 {
 899         const DWORD MAX_PROC = 1024;
 900         QScopedArrayPointer<DWORD> processes(new DWORD[MAX_PROC]);
 901         DWORD bytesReturned = 0;
 902
 903         if(!EnumProcesses(processes.data(), sizeof(DWORD) * MAX_PROC, &bytesReturned))
 904         {
 905                 return QDate::currentDate();
 906         }
 907
 908         const DWORD procCount = bytesReturned / sizeof(DWORD);
 909         ULARGE_INTEGER lastStartTime;
 910         memset(&lastStartTime, 0, sizeof(ULARGE_INTEGER));
 911
 912         for(DWORD i = 0; i < procCount; i++)
 913         {
 914                 if(HANDLE hProc = OpenProcess(PROCESS_QUERY_INFORMATION, FALSE, processes[i]))
 915                 {
 916                         FILETIME processTime[4];
 917                         if(GetProcessTimes(hProc, &processTime[0], &processTime[1], &processTime[2], &processTime[3]))
 918                         {
 919                                 ULARGE_INTEGER timeCreation;
 920                                 timeCreation.LowPart  = processTime[0].dwLowDateTime;
 921                                 timeCreation.HighPart = processTime[0].dwHighDateTime;
 922                                 if(timeCreation.QuadPart > lastStartTime.QuadPart)
 923                                 {
 924                                         lastStartTime.QuadPart = timeCreation.QuadPart;
 925                                 }
 926                         }
 927                         CloseHandle(hProc);
 928                 }
 929         }
 930
 931         FILETIME lastStartTime_fileTime;
 932         lastStartTime_fileTime.dwHighDateTime = lastStartTime.HighPart;
 933         lastStartTime_fileTime.dwLowDateTime  = lastStartTime.LowPart;
 934
 935         FILETIME lastStartTime_localTime;
 936         if(!FileTimeToLocalFileTime(&lastStartTime_fileTime, &lastStartTime_localTime))
 937         {
 938                 memcpy(&lastStartTime_localTime, &lastStartTime_fileTime, sizeof(FILETIME));
 939         }
 940
 941         SYSTEMTIME lastStartTime_system;
 942         if(!FileTimeToSystemTime(&lastStartTime_localTime, &lastStartTime_system))
 943         {
 944                 memset(&lastStartTime_system, 0, sizeof(SYSTEMTIME));
 945                 lastStartTime_system.wYear = 1970; lastStartTime_system.wMonth = lastStartTime_system.wDay = 1;
 946         }
 947
 948         const QDate currentDate = QDate::currentDate();
 949         const QDate processDate = QDate(lastStartTime_system.wYear, lastStartTime_system.wMonth, lastStartTime_system.wDay);
 950         return (currentDate >= processDate) ? currentDate : processDate;
 951 }
 952
 953 quint64 MUtils::OS::current_file_time(void)
 954 {
 955         FILETIME fileTime;
 956         GetSystemTimeAsFileTime(&fileTime);
 957
 958         ULARGE_INTEGER temp;
 959         temp.HighPart = fileTime.dwHighDateTime;
 960         temp.LowPart = fileTime.dwLowDateTime;
 961
 962         return temp.QuadPart;
 963 }
 964
 965 ///////////////////////////////////////////////////////////////////////////////
 966 // FILE PATH FROM FD
 967 ///////////////////////////////////////////////////////////////////////////////
 968
 969 typedef DWORD(_stdcall *GetPathNameByHandleFun)(HANDLE hFile, LPWSTR lpszFilePath, DWORD cchFilePath, DWORD dwFlags);
 970
 971 static QString get_file_path_drive_list(void)
 972 {
 973         QString list;
 974         const DWORD len = GetLogicalDriveStringsW(0, NULL);
 975         if (len > 0)
 976         {
 977                 if (wchar_t *const buffer = (wchar_t*) _malloca(sizeof(wchar_t) * len))
 978                 {
 979                         const DWORD ret = GetLogicalDriveStringsW(len, buffer);
 980                         if ((ret > 0) && (ret < len))
 981                         {
 982                                 const wchar_t *ptr = buffer;
 983                                 while (const size_t current_len = wcslen(ptr))
 984                                 {
 985                                         list.append(QChar(*reinterpret_cast<const ushort*>(ptr)));
 986                                         ptr += (current_len + 1);
 987                                 }
 988                         }
 989                         _freea(buffer);
 990                 }
 991         }
 992         return list;
 993 }
 994
 995 static void get_file_path_translate(QString &path)
 996 {
 997         static const DWORD BUFSIZE = 2048;
 998         wchar_t buffer[BUFSIZE], drive[3];
 999
1000         const QString driveList = get_file_path_drive_list();
1001         wcscpy_s(drive, 3, L"?:");
1002         for (const wchar_t *current = MUTILS_WCHR(driveList); *current; current++)
1003         {
1004                 drive[0] = (*current);
1005                 if (QueryDosDeviceW(drive, buffer, MAX_PATH))
1006                 {
1007                         const QString prefix = MUTILS_QSTR(buffer);
1008                         if (path.startsWith(prefix, Qt::CaseInsensitive))
1009                         {
1010                                 path.remove(0, prefix.length()).prepend(QLatin1Char(':')).prepend(QChar(*reinterpret_cast<const ushort*>(current)));
1011                                 break;
1012                         }
1013                 }
1014         }
1015 }
1016
1017 static QString get_file_path_fallback(const HANDLE &hFile)
1018 {
1019         QString filePath;
1020
1021         const HANDLE hFileMap = CreateFileMappingW(hFile, NULL, PAGE_READONLY, 0, 1, NULL);
1022         if (hFileMap)
1023         {
1024                 void *const pMem = MapViewOfFile(hFileMap, FILE_MAP_READ, 0, 0, 1);
1025                 if (pMem)
1026                 {
1027                         static const size_t BUFFSIZE = 2048;
1028                         wchar_t buffer[BUFFSIZE];
1029                         if (GetMappedFileNameW(GetCurrentProcess(), pMem, buffer, BUFFSIZE) > 0)
1030                         {
1031                                 filePath = MUTILS_QSTR(buffer);
1032                         }
1033                         UnmapViewOfFile(pMem);
1034                 }
1035                 CloseHandle(hFileMap);
1036         }
1037
1038         if (!filePath.isEmpty())
1039         {
1040                 get_file_path_translate(filePath);
1041         }
1042
1043         return filePath;
1044 }
1045
1046 QString MUtils::OS::get_file_path(const int &fd)
1047 {
1048         if (fd >= 0)
1049         {
1050                 const GetPathNameByHandleFun getPathNameByHandleFun = MUtils::Win32Utils::resolve<GetPathNameByHandleFun>(QLatin1String("kernel32"), QLatin1String("GetFinalPathNameByHandleW"));
1051                 if (!getPathNameByHandleFun)
1052                 {
1053                         return get_file_path_fallback((HANDLE)_get_osfhandle(fd));
1054                 }
1055
1056                 const HANDLE handle = (HANDLE) _get_osfhandle(fd);
1057                 const DWORD len = getPathNameByHandleFun(handle, NULL, 0, FILE_NAME_OPENED);
1058                 if (len > 0)
1059                 {
1060                         if (wchar_t *const buffer = (wchar_t*)_malloca(sizeof(wchar_t) * len))
1061                         {
1062                                 const DWORD ret = getPathNameByHandleFun(handle, buffer, len, FILE_NAME_OPENED);
1063                                 if ((ret > 0) && (ret < len))
1064                                 {
1065                                         const QString path(MUTILS_QSTR(buffer));
1066                                         return path.startsWith(QLatin1String("\\\\?\\")) ? path.mid(4) : path;
1067                                 }
1068                                 _freea(buffer);
1069                         }
1070                 }
1071         }
1072
1073         return QString();
1074 }
1075
1076 ///////////////////////////////////////////////////////////////////////////////
1077 // PROCESS ELEVATION
1078 ///////////////////////////////////////////////////////////////////////////////
1079
1080 static bool user_is_admin_helper(void)
1081 {
1082         HANDLE hToken = NULL;
1083         if(!OpenProcessToken(GetCurrentProcess(), TOKEN_QUERY, &hToken))
1084         {
1085                 return false;
1086         }
1087
1088         DWORD dwSize = 0;
1089         if(!GetTokenInformation(hToken, TokenGroups, NULL, 0, &dwSize))
1090         {
1091                 if(GetLastError() != ERROR_INSUFFICIENT_BUFFER)
1092                 {
1093                         CloseHandle(hToken);
1094                         return false;
1095                 }
1096         }
1097
1098         PTOKEN_GROUPS lpGroups = (PTOKEN_GROUPS) malloc(dwSize);
1099         if(!lpGroups)
1100         {
1101                 CloseHandle(hToken);
1102                 return false;
1103         }
1104
1105         if(!GetTokenInformation(hToken, TokenGroups, lpGroups, dwSize, &dwSize))
1106         {
1107                 free(lpGroups);
1108                 CloseHandle(hToken);
1109                 return false;
1110         }
1111
1112         PSID lpSid = NULL; SID_IDENTIFIER_AUTHORITY Authority = {SECURITY_NT_AUTHORITY};
1113         if(!AllocateAndInitializeSid(&Authority, 2, SECURITY_BUILTIN_DOMAIN_RID, DOMAIN_ALIAS_RID_ADMINS, 0, 0, 0, 0, 0, 0, &lpSid))
1114         {
1115                 free(lpGroups);
1116                 CloseHandle(hToken);
1117                 return false;
1118         }
1119
1120         bool bResult = false;
1121         for(DWORD i = 0; i < lpGroups->GroupCount; i++)
1122         {
1123                 if(EqualSid(lpSid, lpGroups->Groups[i].Sid))
1124                 {
1125                         bResult = true;
1126                         break;
1127                 }
1128         }
1129
1130         FreeSid(lpSid);
1131         free(lpGroups);
1132         CloseHandle(hToken);
1133         return bResult;
1134 }
1135
1136 bool MUtils::OS::is_elevated(bool *bIsUacEnabled)
1137 {
1138         if(bIsUacEnabled)
1139         {
1140                 *bIsUacEnabled = false;
1141         }
1142
1143         bool bIsProcessElevated = false;
1144         HANDLE hToken = NULL;
1145
1146         if(OpenProcessToken(GetCurrentProcess(), TOKEN_QUERY, &hToken))
1147         {
1148                 TOKEN_ELEVATION_TYPE tokenElevationType;
1149                 DWORD returnLength;
1150                 if(GetTokenInformation(hToken, TokenElevationType, &tokenElevationType, sizeof(TOKEN_ELEVATION_TYPE), &returnLength))
1151                 {
1152                         if(returnLength == sizeof(TOKEN_ELEVATION_TYPE))
1153                         {
1154                                 switch(tokenElevationType)
1155                                 {
1156                                 case TokenElevationTypeDefault:
1157                                         qDebug("Process token elevation type: Default -> UAC is disabled.\n");
1158                                         break;
1159                                 case TokenElevationTypeFull:
1160                                         qWarning("Process token elevation type: Full -> potential security risk!\n");
1161                                         bIsProcessElevated = true;
1162                                         if(bIsUacEnabled) *bIsUacEnabled = true;
1163                                         break;
1164                                 case TokenElevationTypeLimited:
1165                                         qDebug("Process token elevation type: Limited -> not elevated.\n");
1166                                         if(bIsUacEnabled) *bIsUacEnabled = true;
1167                                         break;
1168                                 default:
1169                                         qWarning("Unknown tokenElevationType value: %d", tokenElevationType);
1170                                         break;
1171                                 }
1172                         }
1173                         else
1174                         {
1175                                 qWarning("GetTokenInformation() return an unexpected size!");
1176                         }
1177                 }
1178                 CloseHandle(hToken);
1179         }
1180         else
1181         {
1182                 qWarning("Failed to open process token!");
1183         }
1184
1185         return bIsProcessElevated;
1186 }
1187
1188 bool MUtils::OS::user_is_admin(void)
1189 {
1190         bool isAdmin = false;
1191
1192         //Check for process elevation and UAC support first!
1193         if(MUtils::OS::is_elevated(&isAdmin))
1194         {
1195                 qWarning("Process is elevated -> user is admin!");
1196                 return true;
1197         }
1198
1199         //If not elevated and UAC is not available -> user must be in admin group!
1200         if(!isAdmin)
1201         {
1202                 qDebug("UAC is disabled/unavailable -> checking for Administrators group");
1203                 isAdmin = user_is_admin_helper();
1204         }
1205
1206         return isAdmin;
1207 }
1208
1209 ///////////////////////////////////////////////////////////////////////////////
1210 // NETWORK STATE
1211 ///////////////////////////////////////////////////////////////////////////////
1212
1213 int MUtils::OS::network_status(void)
1214 {
1215         DWORD dwFlags;
1216         const BOOL ret = IsNetworkAlive(&dwFlags);
1217         if(GetLastError() == 0)
1218         {
1219                 return (ret != FALSE) ? NETWORK_TYPE_YES : NETWORK_TYPE_NON;
1220         }
1221         return NETWORK_TYPE_ERR;
1222 }
1223
1224 ///////////////////////////////////////////////////////////////////////////////
1225 // MESSAGE HANDLER
1226 ///////////////////////////////////////////////////////////////////////////////
1227
1228 bool MUtils::OS::handle_os_message(const void *const message, long *result)
1229 {
1230         const MSG *const msg = reinterpret_cast<const MSG*>(message);
1231
1232         switch(msg->message)
1233         {
1234         case WM_QUERYENDSESSION:
1235                 qWarning("WM_QUERYENDSESSION message received!");
1236                 *result = MUtils::GUI::broadcast(MUtils::GUI::USER_EVENT_QUERYENDSESSION, false) ? TRUE : FALSE;
1237                 return true;
1238         case WM_ENDSESSION:
1239                 qWarning("WM_ENDSESSION message received!");
1240                 if(msg->wParam == TRUE)
1241                 {
1242                         MUtils::GUI::broadcast(MUtils::GUI::USER_EVENT_ENDSESSION, false);
1243                         MUtils::GUI::force_quit();
1244                         exit(1);
1245                 }
1246                 *result = 0;
1247                 return true;
1248         default:
1249                 /*ignore this message and let Qt handle it*/
1250                 return false;
1251         }
1252 }
1253
1254 ///////////////////////////////////////////////////////////////////////////////
1255 // SLEEP
1256 ///////////////////////////////////////////////////////////////////////////////
1257
1258 void MUtils::OS::sleep_ms(const size_t &duration)
1259 {
1260         Sleep((DWORD) duration);
1261 }
1262
1263 ///////////////////////////////////////////////////////////////////////////////
1264 // EXECUTABLE CHECK
1265 ///////////////////////////////////////////////////////////////////////////////
1266
1267 static int g_library_as_image_resource_supported = -1;
1268 static QReadWriteLock g_library_as_image_resource_supported_lock;
1269
1270 static bool library_as_image_resource_supported()
1271 {
1272         QReadLocker readLocker(&g_library_as_image_resource_supported_lock);
1273         if (g_library_as_image_resource_supported >= 0)
1274         {
1275                 return (g_library_as_image_resource_supported > 0);
1276         }
1277
1278         readLocker.unlock();
1279         QWriteLocker writeLocker(&g_library_as_image_resource_supported_lock);
1280
1281         if (g_library_as_image_resource_supported < 0)
1282         {
1283                 g_library_as_image_resource_supported = 0;
1284                 OSVERSIONINFOEXW osvi;
1285                 if (rtl_get_version(&osvi))
1286                 {
1287                         if ((osvi.dwPlatformId == VER_PLATFORM_WIN32_NT) && (osvi.dwMajorVersion >= 6U))
1288                         {
1289                                 g_library_as_image_resource_supported = 1;
1290                         }
1291                 }
1292         }
1293
1294         return (g_library_as_image_resource_supported > 0);
1295 }
1296
1297 bool MUtils::OS::is_executable_file(const QString &path)
1298 {
1299         DWORD binaryType;
1300         if(GetBinaryType(MUTILS_WCHR(QDir::toNativeSeparators(path)), &binaryType))
1301         {
1302                 return ((binaryType == SCS_32BIT_BINARY) || (binaryType == SCS_64BIT_BINARY));
1303         }
1304
1305         const DWORD errorCode = GetLastError();
1306         qWarning("GetBinaryType() failed with error: 0x%08X", errorCode);
1307         return false;
1308 }
1309
1310 bool MUtils::OS::is_library_file(const QString &path)
1311 {
1312         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);
1313         if (const HMODULE hMod = LoadLibraryEx(MUTILS_WCHR(QDir::toNativeSeparators(path)), NULL, flags))
1314         {
1315                 FreeLibrary(hMod);
1316                 return true;
1317         }
1318
1319         const DWORD errorCode = GetLastError();
1320         qWarning("LoadLibraryEx() failed with error: 0x%08X", errorCode);
1321         return false;
1322 }
1323
1324 ///////////////////////////////////////////////////////////////////////////////
1325 // HIBERNATION / SHUTDOWN
1326 ///////////////////////////////////////////////////////////////////////////////
1327
1328 bool MUtils::OS::is_hibernation_supported(void)
1329 {
1330         bool hibernationSupported = false;
1331
1332         SYSTEM_POWER_CAPABILITIES pwrCaps;
1333         SecureZeroMemory(&pwrCaps, sizeof(SYSTEM_POWER_CAPABILITIES));
1334
1335         if(GetPwrCapabilities(&pwrCaps))
1336         {
1337                 hibernationSupported = pwrCaps.SystemS4 && pwrCaps.HiberFilePresent;
1338         }
1339
1340         return hibernationSupported;
1341 }
1342
1343 bool MUtils::OS::shutdown_computer(const QString &message, const unsigned long timeout, const bool forceShutdown, const bool hibernate)
1344 {
1345         HANDLE hToken = NULL;
1346
1347         if(OpenProcessToken(GetCurrentProcess(), TOKEN_ADJUST_PRIVILEGES | TOKEN_QUERY, &hToken))
1348         {
1349                 TOKEN_PRIVILEGES privileges;
1350                 memset(&privileges, 0, sizeof(TOKEN_PRIVILEGES));
1351                 privileges.PrivilegeCount = 1;
1352                 privileges.Privileges[0].Attributes = SE_PRIVILEGE_ENABLED;
1353
1354                 if(LookupPrivilegeValue(NULL, SE_SHUTDOWN_NAME, &privileges.Privileges[0].Luid))
1355                 {
1356                         if(AdjustTokenPrivileges(hToken, FALSE, &privileges, NULL, NULL, NULL))
1357                         {
1358                                 if(hibernate)
1359                                 {
1360                                         if(SetSuspendState(TRUE, TRUE, TRUE))
1361                                         {
1362                                                 return true;
1363                                         }
1364                                 }
1365                                 const DWORD reason = SHTDN_REASON_MAJOR_APPLICATION | SHTDN_REASON_FLAG_PLANNED;
1366                                 return InitiateSystemShutdownEx(NULL, const_cast<wchar_t*>(MUTILS_WCHR(message)), timeout, forceShutdown ? TRUE : FALSE, FALSE, reason);
1367                         }
1368                 }
1369         }
1370
1371         return false;
1372 }
1373
1374 ///////////////////////////////////////////////////////////////////////////////
1375 // FREE DISKSPACE
1376 ///////////////////////////////////////////////////////////////////////////////
1377
1378 bool MUtils::OS::free_diskspace(const QString &path, quint64 &freeSpace)
1379 {
1380         ULARGE_INTEGER freeBytesAvailable, totalNumberOfBytes, totalNumberOfFreeBytes;
1381         if(GetDiskFreeSpaceExW(reinterpret_cast<const wchar_t*>(QDir::toNativeSeparators(path).utf16()), &freeBytesAvailable, &totalNumberOfBytes, &totalNumberOfFreeBytes))
1382         {
1383                 freeSpace = freeBytesAvailable.QuadPart;
1384                 return true;;
1385         }
1386
1387         freeSpace = -1;
1388         return false;
1389 }
1390
1391 ///////////////////////////////////////////////////////////////////////////////
1392 // DRIVE TYPE
1393 ///////////////////////////////////////////////////////////////////////////////
1394
1395 static wchar_t get_drive_letter(const QString &path)
1396 {
1397         QString nativePath = QDir::toNativeSeparators(path);
1398         while (nativePath.startsWith("\\\\?\\") || nativePath.startsWith("\\\\.\\"))
1399         {
1400                 nativePath = QDir::toNativeSeparators(nativePath.mid(4));
1401         }
1402         if ((path.length() > 1) && (path[1] == QLatin1Char(':')))
1403         {
1404                 const wchar_t letter = static_cast<wchar_t>(path[0].unicode());
1405                 if (((letter >= 'A') && (letter <= 'Z')) || ((letter >= 'a') && (letter <= 'z')))
1406                 {
1407                         return towupper(letter);
1408                 }
1409         }
1410         return L'\0'; /*invalid path spec*/
1411 }
1412
1413 static QSet<DWORD> get_physical_drive_ids(const wchar_t drive_letter)
1414 {
1415         QSet<DWORD> physical_drives;
1416         wchar_t driveName[8];
1417         _snwprintf_s(driveName, 8, _TRUNCATE, L"\\\\.\\%c:", drive_letter);
1418         const HANDLE hDrive = CreateFileW(driveName, 0, FILE_SHARE_READ | FILE_SHARE_WRITE, NULL, OPEN_EXISTING, 0, NULL);
1419         if (hDrive && (hDrive != INVALID_HANDLE_VALUE))
1420         {
1421                 const size_t BUFF_SIZE = sizeof(VOLUME_DISK_EXTENTS) + (32U * sizeof(DISK_EXTENT));
1422                 VOLUME_DISK_EXTENTS *const diskExtents = (VOLUME_DISK_EXTENTS*)_malloca(BUFF_SIZE);
1423                 DWORD dwSize;
1424                 if (DeviceIoControl(hDrive, IOCTL_VOLUME_GET_VOLUME_DISK_EXTENTS, NULL, 0, (LPVOID)diskExtents, (DWORD)BUFF_SIZE, (LPDWORD)&dwSize, NULL))
1425                 {
1426                         for (DWORD index = 0U; index < diskExtents->NumberOfDiskExtents; ++index)
1427                         {
1428                                 physical_drives.insert(diskExtents->Extents[index].DiskNumber);
1429                         }
1430                 }
1431                 _freea(diskExtents);
1432                 CloseHandle(hDrive);
1433         }
1434         return physical_drives;
1435 }
1436
1437 static bool incurs_seek_penalty(const DWORD device_id)
1438 {
1439         wchar_t driveName[24];
1440         _snwprintf_s(driveName, 24, _TRUNCATE, L"\\\\?\\PhysicalDrive%u", device_id);
1441         const HANDLE hDevice = CreateFileW(driveName, 0, FILE_SHARE_READ | FILE_SHARE_WRITE, NULL, OPEN_EXISTING, 0, NULL);
1442         bool seeking_penalty = true;
1443         if (hDevice && (hDevice != INVALID_HANDLE_VALUE))
1444         {
1445                 STORAGE_PROPERTY_QUERY spq;
1446                 DEVICE_SEEK_PENALTY_DESCRIPTOR dspd;
1447                 memset(&spq, 0, sizeof(STORAGE_PROPERTY_QUERY));
1448                 spq.PropertyId = (STORAGE_PROPERTY_ID)StorageDeviceSeekPenaltyProperty;
1449                 spq.QueryType = PropertyStandardQuery;
1450                 DWORD dwSize;
1451                 if (DeviceIoControl(hDevice, IOCTL_STORAGE_QUERY_PROPERTY, (LPVOID)&spq, (DWORD)sizeof(spq), (LPVOID)&dspd, (DWORD)sizeof(dspd), (LPDWORD)&dwSize, NULL))
1452                 {
1453                         seeking_penalty = dspd.IncursSeekPenalty;
1454                 }
1455                 CloseHandle(hDevice);
1456         }
1457         return seeking_penalty;
1458 }
1459
1460 static bool is_fast_seeking_drive(const wchar_t drive_letter)
1461 {
1462         bool fast_seeking = false;
1463         const QSet<DWORD> physical_drive_ids = get_physical_drive_ids(drive_letter);
1464         if (!physical_drive_ids.empty())
1465         {
1466                 fast_seeking = true;
1467                 for (QSet<DWORD>::const_iterator iter = physical_drive_ids.constBegin(); iter != physical_drive_ids.constEnd(); ++iter)
1468                 {
1469                         fast_seeking = fast_seeking && (!incurs_seek_penalty(*iter));
1470                 }
1471         }
1472         return fast_seeking;
1473 }
1474
1475 MUtils::OS::drive_type_t MUtils::OS::get_drive_type(const QString &path, bool *fast_seeking)
1476 {
1477         drive_type_t driveType = DRIVE_TYPE_ERR;
1478         const wchar_t driveLetter = get_drive_letter(path);
1479         if (driveLetter)
1480         {
1481                 wchar_t driveName[8];
1482                 _snwprintf_s(driveName, 8, _TRUNCATE, L"\\\\.\\%c:\\", driveLetter);
1483                 switch (GetDriveTypeW(driveName))
1484                 {
1485                         case DRIVE_REMOVABLE: driveType = DRIVE_TYPE_FDD; break;
1486                         case DRIVE_FIXED:     driveType = DRIVE_TYPE_HDD; break;
1487                         case DRIVE_REMOTE:    driveType = DRIVE_TYPE_NET; break;
1488                         case DRIVE_CDROM:     driveType = DRIVE_TYPE_OPT; break;
1489                         case DRIVE_RAMDISK:   driveType = DRIVE_TYPE_RAM; break;
1490                 }
1491         }
1492         if (fast_seeking)
1493         {
1494                 if (driveType == DRIVE_TYPE_HDD)
1495                 {
1496                         *fast_seeking = is_fast_seeking_drive(driveLetter);
1497                 }
1498                 else
1499                 {
1500                         *fast_seeking = (driveType == DRIVE_TYPE_RAM);
1501                 }
1502         }
1503         return driveType;
1504 }
1505
1506 ///////////////////////////////////////////////////////////////////////////////
1507 // SHELL OPEN
1508 ///////////////////////////////////////////////////////////////////////////////
1509
1510 bool MUtils::OS::shell_open(const QWidget *parent, const QString &url, const QString &parameters, const QString &directory, const bool explore)
1511 {
1512         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;
1513 }
1514
1515 bool MUtils::OS::shell_open(const QWidget *parent, const QString &url, const bool explore)
1516 {
1517         return shell_open(parent, url, QString(), QString(), explore);
1518 }
1519
1520 ///////////////////////////////////////////////////////////////////////////////
1521 // OPEN MEDIA FILE
1522 ///////////////////////////////////////////////////////////////////////////////
1523
1524 bool MUtils::OS::open_media_file(const QString &mediaFilePath)
1525 {
1526         const static wchar_t *registryPrefix[2] = { L"SOFTWARE\\", L"SOFTWARE\\Wow6432Node\\" };
1527         const static wchar_t *registryKeys[3] =
1528         {
1529                 L"Microsoft\\Windows\\CurrentVersion\\Uninstall\\{97D341C8-B0D1-4E4A-A49A-C30B52F168E9}",
1530                 L"Microsoft\\Windows\\CurrentVersion\\Uninstall\\{DB9E4EAB-2717-499F-8D56-4CC8A644AB60}",
1531                 L"foobar2000"
1532         };
1533         const static wchar_t *appNames[4] = { L"smplayer_portable.exe", L"smplayer.exe", L"MPUI.exe", L"foobar2000.exe" };
1534         const static wchar_t *valueNames[2] = { L"InstallLocation", L"InstallDir" };
1535
1536         for(size_t i = 0; i < 3; i++)
1537         {
1538                 for(size_t j = 0; j < 2; j++)
1539                 {
1540                         QString mplayerPath;
1541                         HKEY registryKeyHandle = NULL;
1542
1543                         const QString currentKey = MUTILS_QSTR(registryPrefix[j]).append(MUTILS_QSTR(registryKeys[i]));
1544                         if(RegOpenKeyExW(HKEY_LOCAL_MACHINE, MUTILS_WCHR(currentKey), 0, KEY_READ, &registryKeyHandle) == ERROR_SUCCESS)
1545                         {
1546                                 for(size_t k = 0; k < 2; k++)
1547                                 {
1548                                         wchar_t Buffer[4096];
1549                                         DWORD BuffSize = sizeof(wchar_t*) * 4096;
1550                                         DWORD DataType = REG_NONE;
1551                                         if(RegQueryValueExW(registryKeyHandle, valueNames[k], 0, &DataType, reinterpret_cast<BYTE*>(Buffer), &BuffSize) == ERROR_SUCCESS)
1552                                         {
1553                                                 if((DataType == REG_SZ) || (DataType == REG_EXPAND_SZ) || (DataType == REG_LINK))
1554                                                 {
1555                                                         mplayerPath = MUTILS_QSTR(Buffer);
1556                                                         break;
1557                                                 }
1558                                         }
1559                                 }
1560                                 RegCloseKey(registryKeyHandle);
1561                         }
1562
1563                         if(!mplayerPath.isEmpty())
1564                         {
1565                                 QDir mplayerDir(mplayerPath);
1566                                 if(mplayerDir.exists())
1567                                 {
1568                                         for(size_t k = 0; k < 4; k++)
1569                                         {
1570                                                 if(mplayerDir.exists(MUTILS_QSTR(appNames[k])))
1571                                                 {
1572                                                         qDebug("Player found at:\n%s\n", MUTILS_UTF8(mplayerDir.absoluteFilePath(MUTILS_QSTR(appNames[k]))));
1573                                                         QProcess::startDetached(mplayerDir.absoluteFilePath(MUTILS_QSTR(appNames[k])), QStringList() << QDir::toNativeSeparators(mediaFilePath));
1574                                                         return true;
1575                                                 }
1576                                         }
1577                                 }
1578                         }
1579                 }
1580         }
1581         return false;
1582 }
1583
1584 ///////////////////////////////////////////////////////////////////////////////
1585 // DEBUGGER CHECK
1586 ///////////////////////////////////////////////////////////////////////////////
1587
1588 static bool change_process_priority_helper(const HANDLE hProcess, const int priority)
1589 {
1590         bool ok = false;
1591
1592         switch(qBound(-2, priority, 2))
1593         {
1594         case 2:
1595                 ok = (SetPriorityClass(hProcess, HIGH_PRIORITY_CLASS) == TRUE);
1596                 break;
1597         case 1:
1598                 if(!(ok = (SetPriorityClass(hProcess, ABOVE_NORMAL_PRIORITY_CLASS) == TRUE)))
1599                 {
1600                         ok = (SetPriorityClass(hProcess, HIGH_PRIORITY_CLASS) == TRUE);
1601                 }
1602                 break;
1603         case 0:
1604                 ok = (SetPriorityClass(hProcess, NORMAL_PRIORITY_CLASS) == TRUE);
1605                 break;
1606         case -1:
1607                 if(!(ok = (SetPriorityClass(hProcess, BELOW_NORMAL_PRIORITY_CLASS) == TRUE)))
1608                 {
1609                         ok = (SetPriorityClass(hProcess, IDLE_PRIORITY_CLASS) == TRUE);
1610                 }
1611                 break;
1612         case -2:
1613                 ok = (SetPriorityClass(hProcess, IDLE_PRIORITY_CLASS) == TRUE);
1614                 break;
1615         }
1616
1617         return ok;
1618 }
1619
1620 bool MUtils::OS::change_process_priority(const int priority)
1621 {
1622         return change_process_priority_helper(GetCurrentProcess(), priority);
1623 }
1624
1625 bool MUtils::OS::change_process_priority(const QProcess *proc, const int priority)
1626 {
1627         if(Q_PID qPid = proc->pid())
1628         {
1629                 return change_process_priority_helper(qPid->hProcess, priority);
1630         }
1631         else
1632         {
1633                 return false;
1634         }
1635 }
1636
1637 ///////////////////////////////////////////////////////////////////////////////
1638 // PROCESS ID
1639 ///////////////////////////////////////////////////////////////////////////////
1640
1641 quint32 MUtils::OS::process_id(void)
1642 {
1643         return GetCurrentProcessId();
1644 }
1645
1646 quint32 MUtils::OS::process_id(const QProcess *const proc)
1647 {
1648         PROCESS_INFORMATION *procInf = proc->pid();
1649         return (procInf) ? procInf->dwProcessId : 0;
1650 }
1651
1652 quint32 MUtils::OS::thread_id(void)
1653 {
1654         return GetCurrentThreadId();
1655 }
1656
1657 quint32 MUtils::OS::thread_id(const QProcess *const proc)
1658 {
1659         PROCESS_INFORMATION *procInf = proc->pid();
1660         return (procInf) ? procInf->dwThreadId : 0;
1661 }
1662
1663 ///////////////////////////////////////////////////////////////////////////////
1664 // PROCESS SUSPEND/RESUME
1665 ///////////////////////////////////////////////////////////////////////////////
1666
1667 bool MUtils::OS::suspend_process(const QProcess *proc, const bool suspend)
1668 {
1669         if(Q_PID pid = proc->pid())
1670         {
1671                 if(suspend)
1672                 {
1673                         return (SuspendThread(pid->hThread) != ((DWORD) -1));
1674                 }
1675                 else
1676                 {
1677                         return (ResumeThread(pid->hThread)  != ((DWORD) -1));
1678                 }
1679         }
1680         else
1681         {
1682                 return false;
1683         }
1684 }
1685
1686 ///////////////////////////////////////////////////////////////////////////////
1687 // SYSTEM TIMER
1688 ///////////////////////////////////////////////////////////////////////////////
1689
1690 bool MUtils::OS::setup_timer_resolution(const quint32 &interval)
1691 {
1692         return timeBeginPeriod(interval) == TIMERR_NOERROR;
1693 }
1694
1695 bool MUtils::OS::reset_timer_resolution(const quint32 &interval)
1696 {
1697         return timeEndPeriod(interval) == TIMERR_NOERROR;
1698 }
1699
1700 ///////////////////////////////////////////////////////////////////////////////
1701 // SET FILE TIME
1702 ///////////////////////////////////////////////////////////////////////////////
1703
1704 static QScopedPointer<QDateTime> s_epoch;
1705 static QReadWriteLock            s_epochLock;
1706
1707 static const QDateTime *get_epoch(void)
1708 {
1709         QReadLocker rdLock(&s_epochLock);
1710
1711         if (s_epoch.isNull())
1712         {
1713                 rdLock.unlock();
1714                 QWriteLocker wrLock(&s_epochLock);
1715                 if (s_epoch.isNull())
1716                 {
1717                         s_epoch.reset(new QDateTime(QDate(1601, 1, 1), QTime(0, 0, 0, 0), Qt::UTC));
1718                 }
1719                 wrLock.unlock();
1720                 rdLock.relock();
1721         }
1722
1723         return s_epoch.data();
1724 }
1725
1726 static FILETIME *qt_time_to_file_time(FILETIME *const fileTime, const QDateTime &dateTime)
1727 {
1728         memset(fileTime, 0, sizeof(FILETIME));
1729
1730         if (const QDateTime *const epoch = get_epoch())
1731         {
1732                 const qint64 msecs = epoch->msecsTo(dateTime);
1733                 if (msecs > 0)
1734                 {
1735                         const quint64 ticks = 10000U * quint64(msecs);
1736                         fileTime->dwHighDateTime = ((ticks >> 32) & 0xFFFFFFFF);
1737                         fileTime->dwLowDateTime = (ticks & 0xFFFFFFFF);
1738                         return fileTime;
1739                 }
1740         }
1741
1742         return NULL;
1743 }
1744
1745 static bool set_file_time(const HANDLE hFile, const QDateTime &created, const QDateTime &lastMod, const QDateTime &lastAcc)
1746 {
1747         FILETIME ftCreated, ftLastMod, ftLastAcc;
1748
1749         FILETIME *const pCreated = created.isValid() ? qt_time_to_file_time(&ftCreated, created) : NULL;
1750         FILETIME *const pLastMod = lastMod.isValid() ? qt_time_to_file_time(&ftLastMod, lastMod) : NULL;
1751         FILETIME *const pLastAcc = lastAcc.isValid() ? qt_time_to_file_time(&ftLastAcc, lastAcc) : NULL;
1752
1753         if (pCreated || pLastMod || pLastAcc)
1754         {
1755                 return (SetFileTime(hFile, pCreated, pLastAcc, pLastMod) != FALSE);
1756         }
1757
1758         return false;
1759 }
1760
1761 bool MUtils::OS::set_file_time(const QFile &file, const QDateTime &created, const QDateTime &lastMod, const QDateTime &lastAcc)
1762 {
1763         const int fd = file.handle();
1764         if (fd >= 0)
1765         {
1766                 return set_file_time((HANDLE)_get_osfhandle(fd), created, lastMod, lastAcc);
1767         }
1768         return false;
1769 }
1770
1771 bool MUtils::OS::set_file_time(const QString &path, const QDateTime &created, const QDateTime &lastMod, const QDateTime &lastAcc)
1772 {
1773         const HANDLE hFile = CreateFileW(MUTILS_WCHR(path), FILE_WRITE_ATTRIBUTES, FILE_SHARE_READ, NULL, OPEN_EXISTING, 0, 0);
1774         bool okay = false;
1775         if ((hFile != NULL) && (hFile != INVALID_HANDLE_VALUE))
1776         {
1777                 okay = set_file_time(hFile, created, lastMod, lastAcc);
1778                 CloseHandle(hFile);
1779         }
1780         return okay;
1781 }
1782
1783 ///////////////////////////////////////////////////////////////////////////////
1784 // CHECK KEY STATE
1785 ///////////////////////////////////////////////////////////////////////////////
1786
1787 bool MUtils::OS::check_key_state_esc(void)
1788 {
1789         return (GetAsyncKeyState(VK_ESCAPE) & 0x0001) != 0;
1790 }
1791
1792 ///////////////////////////////////////////////////////////////////////////////
1793 // SHELL CHANGE NOTIFICATION
1794 ///////////////////////////////////////////////////////////////////////////////
1795
1796 void MUtils::OS::shell_change_notification(void)
1797 {
1798         SHChangeNotify(SHCNE_ASSOCCHANGED, SHCNF_IDLIST, NULL, NULL);
1799 }
1800
1801 ///////////////////////////////////////////////////////////////////////////////
1802 // WOW64 REDIRECTION
1803 ///////////////////////////////////////////////////////////////////////////////
1804
1805 typedef BOOL (_stdcall *Wow64DisableWow64FsRedirectionFun)(PVOID *OldValue);
1806 typedef BOOL (_stdcall *Wow64RevertWow64FsRedirectionFun) (PVOID  OldValue);
1807
1808 bool MUtils::OS::wow64fsredir_disable(uintptr_t &oldValue)
1809 {
1810         oldValue = reinterpret_cast<uintptr_t>(nullptr);
1811         const Wow64DisableWow64FsRedirectionFun wow64redir_disable = MUtils::Win32Utils::resolve<Wow64DisableWow64FsRedirectionFun>(QLatin1String("kernel32"), QLatin1String("Wow64DisableWow64FsRedirection"));
1812         if(wow64redir_disable)
1813         {
1814                 PVOID temp = NULL;
1815                 if (wow64redir_disable(&temp))
1816                 {
1817                         oldValue = reinterpret_cast<uintptr_t>(temp);
1818                         return true;
1819                 }
1820         }
1821         return false;
1822 }
1823
1824 bool MUtils::OS::wow64fsredir_revert(const uintptr_t oldValue)
1825 {
1826         const Wow64RevertWow64FsRedirectionFun wow64redir_disable = MUtils::Win32Utils::resolve<Wow64RevertWow64FsRedirectionFun>(QLatin1String("kernel32"), QLatin1String("Wow64RevertWow64FsRedirection"));
1827         if (wow64redir_disable)
1828         {
1829                 if (wow64redir_disable(reinterpret_cast<PVOID>(oldValue)))
1830                 {
1831                         return true;
1832                 }
1833         }
1834         return false;
1835 }
1836
1837 ///////////////////////////////////////////////////////////////////////////////
1838 // DEBUGGER CHECK
1839 ///////////////////////////////////////////////////////////////////////////////
1840
1841 QString MUtils::OS::get_envvar(const QString &name)
1842 {
1843         wchar_t *buffer = NULL;
1844         size_t requiredSize = 0, buffSize = 0;
1845         QString result;
1846
1847         forever
1848         {
1849                 //Adjust the buffer size as required first!
1850                 if (buffSize < requiredSize)
1851                 {
1852                         if (buffer)
1853                         {
1854                                 _freea(buffer);
1855                         }
1856                         if (!(buffer = (wchar_t*)_malloca(sizeof(wchar_t) * requiredSize)))
1857                         {
1858                                 break; /*out of memory error!*/
1859                         }
1860                         buffSize = requiredSize;
1861                 }
1862
1863                 //Try to fetch the environment variable now
1864                 const errno_t error = _wgetenv_s(&requiredSize, buffer, buffSize, MUTILS_WCHR(name));
1865                 if(!error)
1866                 {
1867                         if (requiredSize > 0)
1868                         {
1869                                 result = MUTILS_QSTR(buffer);
1870                         }
1871                         break; /*done*/
1872                 }
1873                 else if (error != ERANGE)
1874                 {
1875                         break; /*somethging else went wrong!*/
1876                 }
1877         }
1878
1879         if (buffer)
1880         {
1881                 _freea(buffer);
1882                 buffSize = 0;
1883                 buffer = NULL;
1884         }
1885
1886         return result;
1887 }
1888
1889 bool MUtils::OS::set_envvar(const QString &name, const QString &value)
1890 {
1891         if (!_wputenv_s(MUTILS_WCHR(name), MUTILS_WCHR(value)))
1892         {
1893                 return true;
1894         }
1895         return false;
1896 }
1897
1898 ///////////////////////////////////////////////////////////////////////////////
1899 // NULL DEVICE
1900 ///////////////////////////////////////////////////////////////////////////////
1901
1902 static const QLatin1String NULL_DEVICE("NUL");
1903
1904 const QLatin1String &MUtils::OS::null_device(void)
1905 {
1906         return NULL_DEVICE;
1907 }
1908
1909 ///////////////////////////////////////////////////////////////////////////////
1910 // DEBUGGER CHECK
1911 ///////////////////////////////////////////////////////////////////////////////
1912
1913 #if (!(MUTILS_DEBUG))
1914 static __forceinline bool is_debugger_present(void)
1915 {
1916         __try
1917         {
1918                 CloseHandle((HANDLE)((DWORD_PTR)-3));
1919         }
1920         __except(1)
1921         {
1922                 return true;
1923         }
1924
1925         BOOL bHaveDebugger = FALSE;
1926         if(CheckRemoteDebuggerPresent(GetCurrentProcess(), &bHaveDebugger))
1927         {
1928                 if(bHaveDebugger) return true;
1929         }
1930
1931         return IsDebuggerPresent();
1932 }
1933 static __forceinline bool check_debugger_helper(void)
1934 {
1935         if(is_debugger_present())
1936         {
1937                 MUtils::OS::fatal_exit(L"Not a debug build. Please unload debugger and try again!");
1938                 return true;
1939         }
1940         return false;
1941 }
1942 #else
1943 #define check_debugger_helper() (false)
1944 #endif
1945
1946 void MUtils::OS::check_debugger(void)
1947 {
1948         check_debugger_helper();
1949 }
1950
1951 static volatile bool g_debug_check = check_debugger_helper();
1952
1953 ///////////////////////////////////////////////////////////////////////////////
1954 // FATAL EXIT
1955 ///////////////////////////////////////////////////////////////////////////////
1956
1957 static MUtils::Internal::CriticalSection g_fatal_exit_lock;
1958 static QAtomicInt g_fatal_exit_flag;
1959
1960 static DWORD WINAPI fatal_exit_helper(LPVOID lpParameter)
1961 {
1962         MUtils::OS::system_message_err(L"GURU MEDITATION", (LPWSTR) lpParameter);
1963         return 0;
1964 }
1965
1966 void MUtils::OS::fatal_exit(const wchar_t* const errorMessage)
1967 {
1968         g_fatal_exit_lock.enter();
1969
1970         if(!g_fatal_exit_flag.testAndSetOrdered(0, 1))
1971         {
1972                 return; /*prevent recursive invocation*/
1973         }
1974
1975         if(g_main_thread_id != GetCurrentThreadId())
1976         {
1977                 if(HANDLE hThreadMain = OpenThread(THREAD_SUSPEND_RESUME, FALSE, g_main_thread_id))
1978                 {
1979                         SuspendThread(hThreadMain); /*stop main thread*/
1980                 }
1981         }
1982
1983         if(HANDLE hThread = CreateThread(NULL, 0, fatal_exit_helper, (LPVOID)errorMessage, 0, NULL))
1984         {
1985                 WaitForSingleObject(hThread, INFINITE);
1986         }
1987         else
1988         {
1989                 fatal_exit_helper((LPVOID)errorMessage);
1990         }
1991
1992         for(;;)
1993         {
1994                 TerminateProcess(GetCurrentProcess(), 666);
1995         }
1996 }
1997
1998 ///////////////////////////////////////////////////////////////////////////////