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 *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                 { 0x0028, {0x5E6C858F,0x0E22,0x4760,{0x9A,0xFE,0xEA,0x33,0x17,0xB6,0x71,0x73}} },  //CSIDL_PROFILE
 709                 { 0x0026, {0x905e63b6,0xc1bf,0x494e,{0xb2,0x9c,0x65,0xb7,0x32,0xd3,0xd2,0x1a}} },  //CSIDL_PROGRAM_FILES
 710                 { 0x0025, {0x1AC14E77,0x02E7,0x4E5D,{0xB7,0x44,0x2E,0xB1,0xAE,0x51,0x98,0xB7}} },  //CSIDL_SYSTEM_FOLDER
 711                 { 0x0024, {0xF38BF404,0x1D43,0x42F2,{0x93,0x05,0x67,0xDE,0x0B,0x28,0xFC,0x23}} },  //CSIDL_WINDOWS_FOLDER
 712         };
 713
 714         size_t folderId = size_t(-1);
 715
 716         switch(folder_id)
 717         {
 718                 case FOLDER_LOCALAPPDATA: folderId = 0; break;
 719                 case FOLDER_USER_PROFILE: folderId = 1; break;
 720                 case FOLDER_PROGRAMFILES: folderId = 2; break;
 721                 case FOLDER_SYSTEMFOLDER: folderId = 3; break;
 722                 case FOLDER_SYSTROOT_DIR: folderId = 4; break;
 723                 default:
 724                         qWarning("Invalid 'known' folder was requested!");
 725                         return Internal::g_empty;
 726         }
 727
 728         QReadLocker readLock(&g_known_folders_lock);
 729
 730         //Already in cache?
 731         if(!g_known_folders_data.isNull())
 732         {
 733                 if(g_known_folders_data->contains(folderId))
 734                 {
 735                         return (*g_known_folders_data)[folderId];
 736                 }
 737         }
 738
 739         //Obtain write lock to initialize
 740         readLock.unlock();
 741         QWriteLocker writeLock(&g_known_folders_lock);
 742
 743         //Still not in cache?
 744         if(!g_known_folders_data.isNull())
 745         {
 746                 if(g_known_folders_data->contains(folderId))
 747                 {
 748                         return (*g_known_folders_data)[folderId];
 749                 }
 750         }
 751
 752         //Initialize on first call
 753         if(g_known_folders_data.isNull())
 754         {
 755                 g_known_folders_data.reset(new QHash<size_t, QString>());
 756         }
 757
 758         QString folderPath;
 759
 760         //Try SHGetKnownFolderPath() first!
 761         if(const SHGetKnownFolderPath_t known_folders_fpGetKnownFolderPath = MUtils::Win32Utils::resolve<SHGetKnownFolderPath_t>(QLatin1String("shell32"), QLatin1String("SHGetKnownFolderPath")))
 762         {
 763                 WCHAR *path = NULL;
 764                 if(known_folders_fpGetKnownFolderPath(s_folders[folderId].guid, KF_FLAG_CREATE, NULL, &path) == S_OK)
 765                 {
 766                         //MessageBoxW(0, path, L"SHGetKnownFolderPath", MB_TOPMOST);
 767                         const QDir folderTemp = QDir(QDir::fromNativeSeparators(MUTILS_QSTR(path)));
 768                         if(folderTemp.exists())
 769                         {
 770                                 folderPath = folderTemp.canonicalPath();
 771                         }
 772                         CoTaskMemFree(path);
 773                 }
 774         }
 775
 776         //Fall back to SHGetFolderPathW()
 777         if (folderPath.isEmpty())
 778         {
 779                 if (const SHGetFolderPath_t known_folders_fpGetFolderPath = MUtils::Win32Utils::resolve<SHGetFolderPath_t>(QLatin1String("shell32"), QLatin1String("SHGetFolderPathW")))
 780                 {
 781                         QScopedArrayPointer<WCHAR> path(new WCHAR[4096]);
 782                         if (known_folders_fpGetFolderPath(NULL, s_folders[folderId].csidl | CSIDL_FLAG_CREATE, NULL, NULL, path.data()) == S_OK)
 783                         {
 784                                 //MessageBoxW(0, path, L"SHGetFolderPathW", MB_TOPMOST);
 785                                 const QDir folderTemp = QDir(QDir::fromNativeSeparators(MUTILS_QSTR(path.data())));
 786                                 if (folderTemp.exists())
 787                                 {
 788                                         folderPath = folderTemp.canonicalPath();
 789                                 }
 790                         }
 791                 }
 792         }
 793
 794         //Update cache
 795         if (!folderPath.isEmpty())
 796         {
 797                 g_known_folders_data->insert(folderId, folderPath);
 798                 return (*g_known_folders_data)[folderId];
 799         }
 800
 801         return Internal::g_empty;
 802 }
 803
 804 ///////////////////////////////////////////////////////////////////////////////
 805 // CURRENT DATA & TIME
 806 ///////////////////////////////////////////////////////////////////////////////
 807
 808 QDate MUtils::OS::current_date(void)
 809 {
 810         const DWORD MAX_PROC = 1024;
 811         QScopedArrayPointer<DWORD> processes(new DWORD[MAX_PROC]);
 812         DWORD bytesReturned = 0;
 813
 814         if(!EnumProcesses(processes.data(), sizeof(DWORD) * MAX_PROC, &bytesReturned))
 815         {
 816                 return QDate::currentDate();
 817         }
 818
 819         const DWORD procCount = bytesReturned / sizeof(DWORD);
 820         ULARGE_INTEGER lastStartTime;
 821         memset(&lastStartTime, 0, sizeof(ULARGE_INTEGER));
 822
 823         for(DWORD i = 0; i < procCount; i++)
 824         {
 825                 if(HANDLE hProc = OpenProcess(PROCESS_QUERY_INFORMATION, FALSE, processes[i]))
 826                 {
 827                         FILETIME processTime[4];
 828                         if(GetProcessTimes(hProc, &processTime[0], &processTime[1], &processTime[2], &processTime[3]))
 829                         {
 830                                 ULARGE_INTEGER timeCreation;
 831                                 timeCreation.LowPart  = processTime[0].dwLowDateTime;
 832                                 timeCreation.HighPart = processTime[0].dwHighDateTime;
 833                                 if(timeCreation.QuadPart > lastStartTime.QuadPart)
 834                                 {
 835                                         lastStartTime.QuadPart = timeCreation.QuadPart;
 836                                 }
 837                         }
 838                         CloseHandle(hProc);
 839                 }
 840         }
 841
 842         FILETIME lastStartTime_fileTime;
 843         lastStartTime_fileTime.dwHighDateTime = lastStartTime.HighPart;
 844         lastStartTime_fileTime.dwLowDateTime  = lastStartTime.LowPart;
 845
 846         FILETIME lastStartTime_localTime;
 847         if(!FileTimeToLocalFileTime(&lastStartTime_fileTime, &lastStartTime_localTime))
 848         {
 849                 memcpy(&lastStartTime_localTime, &lastStartTime_fileTime, sizeof(FILETIME));
 850         }
 851
 852         SYSTEMTIME lastStartTime_system;
 853         if(!FileTimeToSystemTime(&lastStartTime_localTime, &lastStartTime_system))
 854         {
 855                 memset(&lastStartTime_system, 0, sizeof(SYSTEMTIME));
 856                 lastStartTime_system.wYear = 1970; lastStartTime_system.wMonth = lastStartTime_system.wDay = 1;
 857         }
 858
 859         const QDate currentDate = QDate::currentDate();
 860         const QDate processDate = QDate(lastStartTime_system.wYear, lastStartTime_system.wMonth, lastStartTime_system.wDay);
 861         return (currentDate >= processDate) ? currentDate : processDate;
 862 }
 863
 864 quint64 MUtils::OS::current_file_time(void)
 865 {
 866         FILETIME fileTime;
 867         GetSystemTimeAsFileTime(&fileTime);
 868
 869         ULARGE_INTEGER temp;
 870         temp.HighPart = fileTime.dwHighDateTime;
 871         temp.LowPart = fileTime.dwLowDateTime;
 872
 873         return temp.QuadPart;
 874 }
 875
 876 ///////////////////////////////////////////////////////////////////////////////
 877 // FILE PATH FROM FD
 878 ///////////////////////////////////////////////////////////////////////////////
 879
 880 typedef DWORD(_stdcall *GetPathNameByHandleFun)(HANDLE hFile, LPWSTR lpszFilePath, DWORD cchFilePath, DWORD dwFlags);
 881
 882 static QString get_file_path_drive_list(void)
 883 {
 884         QString list;
 885         const DWORD len = GetLogicalDriveStringsW(0, NULL);
 886         if (len > 0)
 887         {
 888                 if (wchar_t *const buffer = (wchar_t*) _malloca(sizeof(wchar_t) * len))
 889                 {
 890                         const DWORD ret = GetLogicalDriveStringsW(len, buffer);
 891                         if ((ret > 0) && (ret < len))
 892                         {
 893                                 const wchar_t *ptr = buffer;
 894                                 while (const size_t current_len = wcslen(ptr))
 895                                 {
 896                                         list.append(QChar(*reinterpret_cast<const ushort*>(ptr)));
 897                                         ptr += (current_len + 1);
 898                                 }
 899                         }
 900                         _freea(buffer);
 901                 }
 902         }
 903         return list;
 904 }
 905
 906 static void get_file_path_translate(QString &path)
 907 {
 908         static const DWORD BUFSIZE = 2048;
 909         wchar_t buffer[BUFSIZE], drive[3];
 910
 911         const QString driveList = get_file_path_drive_list();
 912         wcscpy_s(drive, 3, L"?:");
 913         for (const wchar_t *current = MUTILS_WCHR(driveList); *current; current++)
 914         {
 915                 drive[0] = (*current);
 916                 if (QueryDosDeviceW(drive, buffer, MAX_PATH))
 917                 {
 918                         const QString prefix = MUTILS_QSTR(buffer);
 919                         if (path.startsWith(prefix, Qt::CaseInsensitive))
 920                         {
 921                                 path.remove(0, prefix.length()).prepend(QLatin1Char(':')).prepend(QChar(*reinterpret_cast<const ushort*>(current)));
 922                                 break;
 923                         }
 924                 }
 925         }
 926 }
 927
 928 static QString get_file_path_fallback(const HANDLE &hFile)
 929 {
 930         QString filePath;
 931
 932         const HANDLE hFileMap = CreateFileMappingW(hFile, NULL, PAGE_READONLY, 0, 1, NULL);
 933         if (hFileMap)
 934         {
 935                 void *const pMem = MapViewOfFile(hFileMap, FILE_MAP_READ, 0, 0, 1);
 936                 if (pMem)
 937                 {
 938                         static const size_t BUFFSIZE = 2048;
 939                         wchar_t buffer[BUFFSIZE];
 940                         if (GetMappedFileNameW(GetCurrentProcess(), pMem, buffer, BUFFSIZE) > 0)
 941                         {
 942                                 filePath = MUTILS_QSTR(buffer);
 943                         }
 944                         UnmapViewOfFile(pMem);
 945                 }
 946                 CloseHandle(hFileMap);
 947         }
 948
 949         if (!filePath.isEmpty())
 950         {
 951                 get_file_path_translate(filePath);
 952         }
 953
 954         return filePath;
 955 }
 956
 957 QString MUtils::OS::get_file_path(const int &fd)
 958 {
 959         if (fd >= 0)
 960         {
 961                 const GetPathNameByHandleFun getPathNameByHandleFun = MUtils::Win32Utils::resolve<GetPathNameByHandleFun>(QLatin1String("kernel32"), QLatin1String("GetFinalPathNameByHandleW"));
 962                 if (!getPathNameByHandleFun)
 963                 {
 964                         return get_file_path_fallback((HANDLE)_get_osfhandle(fd));
 965                 }
 966
 967                 const HANDLE handle = (HANDLE) _get_osfhandle(fd);
 968                 const DWORD len = getPathNameByHandleFun(handle, NULL, 0, FILE_NAME_OPENED);
 969                 if (len > 0)
 970                 {
 971                         if (wchar_t *const buffer = (wchar_t*)_malloca(sizeof(wchar_t) * len))
 972                         {
 973                                 const DWORD ret = getPathNameByHandleFun(handle, buffer, len, FILE_NAME_OPENED);
 974                                 if ((ret > 0) && (ret < len))
 975                                 {
 976                                         const QString path(MUTILS_QSTR(buffer));
 977                                         return path.startsWith(QLatin1String("\\\\?\\")) ? path.mid(4) : path;
 978                                 }
 979                                 _freea(buffer);
 980                         }
 981                 }
 982         }
 983
 984         return QString();
 985 }
 986
 987 ///////////////////////////////////////////////////////////////////////////////
 988 // PROCESS ELEVATION
 989 ///////////////////////////////////////////////////////////////////////////////
 990
 991 static bool user_is_admin_helper(void)
 992 {
 993         HANDLE hToken = NULL;
 994         if(!OpenProcessToken(GetCurrentProcess(), TOKEN_QUERY, &hToken))
 995         {
 996                 return false;
 997         }
 998
 999         DWORD dwSize = 0;
1000         if(!GetTokenInformation(hToken, TokenGroups, NULL, 0, &dwSize))
1001         {
1002                 if(GetLastError() != ERROR_INSUFFICIENT_BUFFER)
1003                 {
1004                         CloseHandle(hToken);
1005                         return false;
1006                 }
1007         }
1008
1009         PTOKEN_GROUPS lpGroups = (PTOKEN_GROUPS) malloc(dwSize);
1010         if(!lpGroups)
1011         {
1012                 CloseHandle(hToken);
1013                 return false;
1014         }
1015
1016         if(!GetTokenInformation(hToken, TokenGroups, lpGroups, dwSize, &dwSize))
1017         {
1018                 free(lpGroups);
1019                 CloseHandle(hToken);
1020                 return false;
1021         }
1022
1023         PSID lpSid = NULL; SID_IDENTIFIER_AUTHORITY Authority = {SECURITY_NT_AUTHORITY};
1024         if(!AllocateAndInitializeSid(&Authority, 2, SECURITY_BUILTIN_DOMAIN_RID, DOMAIN_ALIAS_RID_ADMINS, 0, 0, 0, 0, 0, 0, &lpSid))
1025         {
1026                 free(lpGroups);
1027                 CloseHandle(hToken);
1028                 return false;
1029         }
1030
1031         bool bResult = false;
1032         for(DWORD i = 0; i < lpGroups->GroupCount; i++)
1033         {
1034                 if(EqualSid(lpSid, lpGroups->Groups[i].Sid))
1035                 {
1036                         bResult = true;
1037                         break;
1038                 }
1039         }
1040
1041         FreeSid(lpSid);
1042         free(lpGroups);
1043         CloseHandle(hToken);
1044         return bResult;
1045 }
1046
1047 bool MUtils::OS::is_elevated(bool *bIsUacEnabled)
1048 {
1049         if(bIsUacEnabled)
1050         {
1051                 *bIsUacEnabled = false;
1052         }
1053
1054         bool bIsProcessElevated = false;
1055         HANDLE hToken = NULL;
1056
1057         if(OpenProcessToken(GetCurrentProcess(), TOKEN_QUERY, &hToken))
1058         {
1059                 TOKEN_ELEVATION_TYPE tokenElevationType;
1060                 DWORD returnLength;
1061                 if(GetTokenInformation(hToken, TokenElevationType, &tokenElevationType, sizeof(TOKEN_ELEVATION_TYPE), &returnLength))
1062                 {
1063                         if(returnLength == sizeof(TOKEN_ELEVATION_TYPE))
1064                         {
1065                                 switch(tokenElevationType)
1066                                 {
1067                                 case TokenElevationTypeDefault:
1068                                         qDebug("Process token elevation type: Default -> UAC is disabled.\n");
1069                                         break;
1070                                 case TokenElevationTypeFull:
1071                                         qWarning("Process token elevation type: Full -> potential security risk!\n");
1072                                         bIsProcessElevated = true;
1073                                         if(bIsUacEnabled) *bIsUacEnabled = true;
1074                                         break;
1075                                 case TokenElevationTypeLimited:
1076                                         qDebug("Process token elevation type: Limited -> not elevated.\n");
1077                                         if(bIsUacEnabled) *bIsUacEnabled = true;
1078                                         break;
1079                                 default:
1080                                         qWarning("Unknown tokenElevationType value: %d", tokenElevationType);
1081                                         break;
1082                                 }
1083                         }
1084                         else
1085                         {
1086                                 qWarning("GetTokenInformation() return an unexpected size!");
1087                         }
1088                 }
1089                 CloseHandle(hToken);
1090         }
1091         else
1092         {
1093                 qWarning("Failed to open process token!");
1094         }
1095
1096         return bIsProcessElevated;
1097 }
1098
1099 bool MUtils::OS::user_is_admin(void)
1100 {
1101         bool isAdmin = false;
1102
1103         //Check for process elevation and UAC support first!
1104         if(MUtils::OS::is_elevated(&isAdmin))
1105         {
1106                 qWarning("Process is elevated -> user is admin!");
1107                 return true;
1108         }
1109
1110         //If not elevated and UAC is not available -> user must be in admin group!
1111         if(!isAdmin)
1112         {
1113                 qDebug("UAC is disabled/unavailable -> checking for Administrators group");
1114                 isAdmin = user_is_admin_helper();
1115         }
1116
1117         return isAdmin;
1118 }
1119
1120 ///////////////////////////////////////////////////////////////////////////////
1121 // NETWORK STATE
1122 ///////////////////////////////////////////////////////////////////////////////
1123
1124 int MUtils::OS::network_status(void)
1125 {
1126         DWORD dwFlags;
1127         const BOOL ret = IsNetworkAlive(&dwFlags);
1128         if(GetLastError() == 0)
1129         {
1130                 return (ret != FALSE) ? NETWORK_TYPE_YES : NETWORK_TYPE_NON;
1131         }
1132         return NETWORK_TYPE_ERR;
1133 }
1134
1135 ///////////////////////////////////////////////////////////////////////////////
1136 // MESSAGE HANDLER
1137 ///////////////////////////////////////////////////////////////////////////////
1138
1139 bool MUtils::OS::handle_os_message(const void *const message, long *result)
1140 {
1141         const MSG *const msg = reinterpret_cast<const MSG*>(message);
1142
1143         switch(msg->message)
1144         {
1145         case WM_QUERYENDSESSION:
1146                 qWarning("WM_QUERYENDSESSION message received!");
1147                 *result = MUtils::GUI::broadcast(MUtils::GUI::USER_EVENT_QUERYENDSESSION, false) ? TRUE : FALSE;
1148                 return true;
1149         case WM_ENDSESSION:
1150                 qWarning("WM_ENDSESSION message received!");
1151                 if(msg->wParam == TRUE)
1152                 {
1153                         MUtils::GUI::broadcast(MUtils::GUI::USER_EVENT_ENDSESSION, false);
1154                         MUtils::GUI::force_quit();
1155                         exit(1);
1156                 }
1157                 *result = 0;
1158                 return true;
1159         default:
1160                 /*ignore this message and let Qt handle it*/
1161                 return false;
1162         }
1163 }
1164
1165 ///////////////////////////////////////////////////////////////////////////////
1166 // SLEEP
1167 ///////////////////////////////////////////////////////////////////////////////
1168
1169 void MUtils::OS::sleep_ms(const size_t &duration)
1170 {
1171         Sleep((DWORD) duration);
1172 }
1173
1174 ///////////////////////////////////////////////////////////////////////////////
1175 // EXECUTABLE CHECK
1176 ///////////////////////////////////////////////////////////////////////////////
1177
1178 static int g_library_as_image_resource_supported = -1;
1179 static QReadWriteLock g_library_as_image_resource_supported_lock;
1180
1181 static bool library_as_image_resource_supported()
1182 {
1183         QReadLocker readLocker(&g_library_as_image_resource_supported_lock);
1184         if (g_library_as_image_resource_supported >= 0)
1185         {
1186                 return (g_library_as_image_resource_supported > 0);
1187         }
1188
1189         readLocker.unlock();
1190         QWriteLocker writeLocker(&g_library_as_image_resource_supported_lock);
1191
1192         if (g_library_as_image_resource_supported < 0)
1193         {
1194                 g_library_as_image_resource_supported = 0;
1195                 OSVERSIONINFOEXW osvi;
1196                 if (rtl_get_version(&osvi))
1197                 {
1198                         if ((osvi.dwPlatformId == VER_PLATFORM_WIN32_NT) && (osvi.dwMajorVersion >= 6U))
1199                         {
1200                                 g_library_as_image_resource_supported = 1;
1201                         }
1202                 }
1203         }
1204
1205         return (g_library_as_image_resource_supported > 0);
1206 }
1207
1208 bool MUtils::OS::is_executable_file(const QString &path)
1209 {
1210         DWORD binaryType;
1211         if(GetBinaryType(MUTILS_WCHR(QDir::toNativeSeparators(path)), &binaryType))
1212         {
1213                 return ((binaryType == SCS_32BIT_BINARY) || (binaryType == SCS_64BIT_BINARY));
1214         }
1215
1216         const DWORD errorCode = GetLastError();
1217         qWarning("GetBinaryType() failed with error: 0x%08X", errorCode);
1218         return false;
1219 }
1220
1221 bool MUtils::OS::is_library_file(const QString &path)
1222 {
1223         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);
1224         if (const HMODULE hMod = LoadLibraryEx(MUTILS_WCHR(QDir::toNativeSeparators(path)), NULL, flags))
1225         {
1226                 FreeLibrary(hMod);
1227                 return true;
1228         }
1229
1230         const DWORD errorCode = GetLastError();
1231         qWarning("LoadLibraryEx() failed with error: 0x%08X", errorCode);
1232         return false;
1233 }
1234
1235 ///////////////////////////////////////////////////////////////////////////////
1236 // HIBERNATION / SHUTDOWN
1237 ///////////////////////////////////////////////////////////////////////////////
1238
1239 bool MUtils::OS::is_hibernation_supported(void)
1240 {
1241         bool hibernationSupported = false;
1242
1243         SYSTEM_POWER_CAPABILITIES pwrCaps;
1244         SecureZeroMemory(&pwrCaps, sizeof(SYSTEM_POWER_CAPABILITIES));
1245
1246         if(GetPwrCapabilities(&pwrCaps))
1247         {
1248                 hibernationSupported = pwrCaps.SystemS4 && pwrCaps.HiberFilePresent;
1249         }
1250
1251         return hibernationSupported;
1252 }
1253
1254 bool MUtils::OS::shutdown_computer(const QString &message, const unsigned long timeout, const bool forceShutdown, const bool hibernate)
1255 {
1256         HANDLE hToken = NULL;
1257
1258         if(OpenProcessToken(GetCurrentProcess(), TOKEN_ADJUST_PRIVILEGES | TOKEN_QUERY, &hToken))
1259         {
1260                 TOKEN_PRIVILEGES privileges;
1261                 memset(&privileges, 0, sizeof(TOKEN_PRIVILEGES));
1262                 privileges.PrivilegeCount = 1;
1263                 privileges.Privileges[0].Attributes = SE_PRIVILEGE_ENABLED;
1264
1265                 if(LookupPrivilegeValue(NULL, SE_SHUTDOWN_NAME, &privileges.Privileges[0].Luid))
1266                 {
1267                         if(AdjustTokenPrivileges(hToken, FALSE, &privileges, NULL, NULL, NULL))
1268                         {
1269                                 if(hibernate)
1270                                 {
1271                                         if(SetSuspendState(TRUE, TRUE, TRUE))
1272                                         {
1273                                                 return true;
1274                                         }
1275                                 }
1276                                 const DWORD reason = SHTDN_REASON_MAJOR_APPLICATION | SHTDN_REASON_FLAG_PLANNED;
1277                                 return InitiateSystemShutdownEx(NULL, const_cast<wchar_t*>(MUTILS_WCHR(message)), timeout, forceShutdown ? TRUE : FALSE, FALSE, reason);
1278                         }
1279                 }
1280         }
1281
1282         return false;
1283 }
1284
1285 ///////////////////////////////////////////////////////////////////////////////
1286 // FREE DISKSPACE
1287 ///////////////////////////////////////////////////////////////////////////////
1288
1289 bool MUtils::OS::free_diskspace(const QString &path, quint64 &freeSpace)
1290 {
1291         ULARGE_INTEGER freeBytesAvailable, totalNumberOfBytes, totalNumberOfFreeBytes;
1292         if(GetDiskFreeSpaceExW(reinterpret_cast<const wchar_t*>(QDir::toNativeSeparators(path).utf16()), &freeBytesAvailable, &totalNumberOfBytes, &totalNumberOfFreeBytes))
1293         {
1294                 freeSpace = freeBytesAvailable.QuadPart;
1295                 return true;;
1296         }
1297
1298         freeSpace = -1;
1299         return false;
1300 }
1301
1302 ///////////////////////////////////////////////////////////////////////////////
1303 // DRIVE TYPE
1304 ///////////////////////////////////////////////////////////////////////////////
1305
1306 static wchar_t get_drive_letter(const QString &path)
1307 {
1308         QString nativePath = QDir::toNativeSeparators(path);
1309         while (nativePath.startsWith("\\\\?\\") || nativePath.startsWith("\\\\.\\"))
1310         {
1311                 nativePath = QDir::toNativeSeparators(nativePath.mid(4));
1312         }
1313         if ((path.length() > 1) && (path[1] == QLatin1Char(':')))
1314         {
1315                 const wchar_t letter = static_cast<wchar_t>(path[0].unicode());
1316                 if (((letter >= 'A') && (letter <= 'Z')) || ((letter >= 'a') && (letter <= 'z')))
1317                 {
1318                         return towupper(letter);
1319                 }
1320         }
1321         return L'\0'; /*invalid path spec*/
1322 }
1323
1324 static QSet<DWORD> get_physical_drive_ids(const wchar_t drive_letter)
1325 {
1326         QSet<DWORD> physical_drives;
1327         wchar_t driveName[8];
1328         _snwprintf_s(driveName, 8, _TRUNCATE, L"\\\\.\\%c:", drive_letter);
1329         const HANDLE hDrive = CreateFileW(driveName, 0, FILE_SHARE_READ | FILE_SHARE_WRITE, NULL, OPEN_EXISTING, 0, NULL);
1330         if (hDrive && (hDrive != INVALID_HANDLE_VALUE))
1331         {
1332                 const size_t BUFF_SIZE = sizeof(VOLUME_DISK_EXTENTS) + (32U * sizeof(DISK_EXTENT));
1333                 VOLUME_DISK_EXTENTS *const diskExtents = (VOLUME_DISK_EXTENTS*)_malloca(BUFF_SIZE);
1334                 DWORD dwSize;
1335                 if (DeviceIoControl(hDrive, IOCTL_VOLUME_GET_VOLUME_DISK_EXTENTS, NULL, 0, (LPVOID)diskExtents, (DWORD)BUFF_SIZE, (LPDWORD)&dwSize, NULL))
1336                 {
1337                         for (DWORD index = 0U; index < diskExtents->NumberOfDiskExtents; ++index)
1338                         {
1339                                 physical_drives.insert(diskExtents->Extents[index].DiskNumber);
1340                         }
1341                 }
1342                 _freea(diskExtents);
1343                 CloseHandle(hDrive);
1344         }
1345         return physical_drives;
1346 }
1347
1348 static bool incurs_seek_penalty(const DWORD device_id)
1349 {
1350         wchar_t driveName[24];
1351         _snwprintf_s(driveName, 24, _TRUNCATE, L"\\\\?\\PhysicalDrive%u", device_id);
1352         const HANDLE hDevice = CreateFileW(driveName, 0, FILE_SHARE_READ | FILE_SHARE_WRITE, NULL, OPEN_EXISTING, 0, NULL);
1353         bool seeking_penalty = true;
1354         if (hDevice && (hDevice != INVALID_HANDLE_VALUE))
1355         {
1356                 STORAGE_PROPERTY_QUERY spq;
1357                 DEVICE_SEEK_PENALTY_DESCRIPTOR dspd;
1358                 memset(&spq, 0, sizeof(STORAGE_PROPERTY_QUERY));
1359                 spq.PropertyId = (STORAGE_PROPERTY_ID)StorageDeviceSeekPenaltyProperty;
1360                 spq.QueryType = PropertyStandardQuery;
1361                 DWORD dwSize;
1362                 if (DeviceIoControl(hDevice, IOCTL_STORAGE_QUERY_PROPERTY, (LPVOID)&spq, (DWORD)sizeof(spq), (LPVOID)&dspd, (DWORD)sizeof(dspd), (LPDWORD)&dwSize, NULL))
1363                 {
1364                         seeking_penalty = dspd.IncursSeekPenalty;
1365                 }
1366                 CloseHandle(hDevice);
1367         }
1368         return seeking_penalty;
1369 }
1370
1371 static bool is_fast_seeking_drive(const wchar_t drive_letter)
1372 {
1373         bool fast_seeking = false;
1374         const QSet<DWORD> physical_drive_ids = get_physical_drive_ids(drive_letter);
1375         if (!physical_drive_ids.empty())
1376         {
1377                 fast_seeking = true;
1378                 for (QSet<DWORD>::const_iterator iter = physical_drive_ids.constBegin(); iter != physical_drive_ids.constEnd(); ++iter)
1379                 {
1380                         fast_seeking = fast_seeking && (!incurs_seek_penalty(*iter));
1381                 }
1382         }
1383         return fast_seeking;
1384 }
1385
1386 MUtils::OS::drive_type_t MUtils::OS::get_drive_type(const QString &path, bool *fast_seeking)
1387 {
1388         drive_type_t driveType = DRIVE_TYPE_ERR;
1389         const wchar_t driveLetter = get_drive_letter(path);
1390         if (driveLetter)
1391         {
1392                 wchar_t driveName[8];
1393                 _snwprintf_s(driveName, 8, _TRUNCATE, L"\\\\.\\%c:\\", driveLetter);
1394                 switch (GetDriveTypeW(driveName))
1395                 {
1396                         case DRIVE_REMOVABLE: driveType = DRIVE_TYPE_FDD; break;
1397                         case DRIVE_FIXED:     driveType = DRIVE_TYPE_HDD; break;
1398                         case DRIVE_REMOTE:    driveType = DRIVE_TYPE_NET; break;
1399                         case DRIVE_CDROM:     driveType = DRIVE_TYPE_OPT; break;
1400                         case DRIVE_RAMDISK:   driveType = DRIVE_TYPE_RAM; break;
1401                 }
1402         }
1403         if (fast_seeking)
1404         {
1405                 if (driveType == DRIVE_TYPE_HDD)
1406                 {
1407                         *fast_seeking = is_fast_seeking_drive(driveLetter);
1408                 }
1409                 else
1410                 {
1411                         *fast_seeking = (driveType == DRIVE_TYPE_RAM);
1412                 }
1413         }
1414         return driveType;
1415 }
1416
1417 ///////////////////////////////////////////////////////////////////////////////
1418 // SHELL OPEN
1419 ///////////////////////////////////////////////////////////////////////////////
1420
1421 bool MUtils::OS::shell_open(const QWidget *parent, const QString &url, const QString &parameters, const QString &directory, const bool explore)
1422 {
1423         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;
1424 }
1425
1426 bool MUtils::OS::shell_open(const QWidget *parent, const QString &url, const bool explore)
1427 {
1428         return shell_open(parent, url, QString(), QString(), explore);
1429 }
1430
1431 ///////////////////////////////////////////////////////////////////////////////
1432 // OPEN MEDIA FILE
1433 ///////////////////////////////////////////////////////////////////////////////
1434
1435 bool MUtils::OS::open_media_file(const QString &mediaFilePath)
1436 {
1437         const static wchar_t *registryPrefix[2] = { L"SOFTWARE\\", L"SOFTWARE\\Wow6432Node\\" };
1438         const static wchar_t *registryKeys[3] =
1439         {
1440                 L"Microsoft\\Windows\\CurrentVersion\\Uninstall\\{97D341C8-B0D1-4E4A-A49A-C30B52F168E9}",
1441                 L"Microsoft\\Windows\\CurrentVersion\\Uninstall\\{DB9E4EAB-2717-499F-8D56-4CC8A644AB60}",
1442                 L"foobar2000"
1443         };
1444         const static wchar_t *appNames[4] = { L"smplayer_portable.exe", L"smplayer.exe", L"MPUI.exe", L"foobar2000.exe" };
1445         const static wchar_t *valueNames[2] = { L"InstallLocation", L"InstallDir" };
1446
1447         for(size_t i = 0; i < 3; i++)
1448         {
1449                 for(size_t j = 0; j < 2; j++)
1450                 {
1451                         QString mplayerPath;
1452                         HKEY registryKeyHandle = NULL;
1453
1454                         const QString currentKey = MUTILS_QSTR(registryPrefix[j]).append(MUTILS_QSTR(registryKeys[i]));
1455                         if(RegOpenKeyExW(HKEY_LOCAL_MACHINE, MUTILS_WCHR(currentKey), 0, KEY_READ, &registryKeyHandle) == ERROR_SUCCESS)
1456                         {
1457                                 for(size_t k = 0; k < 2; k++)
1458                                 {
1459                                         wchar_t Buffer[4096];
1460                                         DWORD BuffSize = sizeof(wchar_t*) * 4096;
1461                                         DWORD DataType = REG_NONE;
1462                                         if(RegQueryValueExW(registryKeyHandle, valueNames[k], 0, &DataType, reinterpret_cast<BYTE*>(Buffer), &BuffSize) == ERROR_SUCCESS)
1463                                         {
1464                                                 if((DataType == REG_SZ) || (DataType == REG_EXPAND_SZ) || (DataType == REG_LINK))
1465                                                 {
1466                                                         mplayerPath = MUTILS_QSTR(Buffer);
1467                                                         break;
1468                                                 }
1469                                         }
1470                                 }
1471                                 RegCloseKey(registryKeyHandle);
1472                         }
1473
1474                         if(!mplayerPath.isEmpty())
1475                         {
1476                                 QDir mplayerDir(mplayerPath);
1477                                 if(mplayerDir.exists())
1478                                 {
1479                                         for(size_t k = 0; k < 4; k++)
1480                                         {
1481                                                 if(mplayerDir.exists(MUTILS_QSTR(appNames[k])))
1482                                                 {
1483                                                         qDebug("Player found at:\n%s\n", MUTILS_UTF8(mplayerDir.absoluteFilePath(MUTILS_QSTR(appNames[k]))));
1484                                                         QProcess::startDetached(mplayerDir.absoluteFilePath(MUTILS_QSTR(appNames[k])), QStringList() << QDir::toNativeSeparators(mediaFilePath));
1485                                                         return true;
1486                                                 }
1487                                         }
1488                                 }
1489                         }
1490                 }
1491         }
1492         return false;
1493 }
1494
1495 ///////////////////////////////////////////////////////////////////////////////
1496 // DEBUGGER CHECK
1497 ///////////////////////////////////////////////////////////////////////////////
1498
1499 static bool change_process_priority_helper(const HANDLE hProcess, const int priority)
1500 {
1501         bool ok = false;
1502
1503         switch(qBound(-2, priority, 2))
1504         {
1505         case 2:
1506                 ok = (SetPriorityClass(hProcess, HIGH_PRIORITY_CLASS) == TRUE);
1507                 break;
1508         case 1:
1509                 if(!(ok = (SetPriorityClass(hProcess, ABOVE_NORMAL_PRIORITY_CLASS) == TRUE)))
1510                 {
1511                         ok = (SetPriorityClass(hProcess, HIGH_PRIORITY_CLASS) == TRUE);
1512                 }
1513                 break;
1514         case 0:
1515                 ok = (SetPriorityClass(hProcess, NORMAL_PRIORITY_CLASS) == TRUE);
1516                 break;
1517         case -1:
1518                 if(!(ok = (SetPriorityClass(hProcess, BELOW_NORMAL_PRIORITY_CLASS) == TRUE)))
1519                 {
1520                         ok = (SetPriorityClass(hProcess, IDLE_PRIORITY_CLASS) == TRUE);
1521                 }
1522                 break;
1523         case -2:
1524                 ok = (SetPriorityClass(hProcess, IDLE_PRIORITY_CLASS) == TRUE);
1525                 break;
1526         }
1527
1528         return ok;
1529 }
1530
1531 bool MUtils::OS::change_process_priority(const int priority)
1532 {
1533         return change_process_priority_helper(GetCurrentProcess(), priority);
1534 }
1535
1536 bool MUtils::OS::change_process_priority(const QProcess *proc, const int priority)
1537 {
1538         if(Q_PID qPid = proc->pid())
1539         {
1540                 return change_process_priority_helper(qPid->hProcess, priority);
1541         }
1542         else
1543         {
1544                 return false;
1545         }
1546 }
1547
1548 ///////////////////////////////////////////////////////////////////////////////
1549 // PROCESS ID
1550 ///////////////////////////////////////////////////////////////////////////////
1551
1552 quint32 MUtils::OS::process_id(void)
1553 {
1554         return GetCurrentProcessId();
1555 }
1556
1557 quint32 MUtils::OS::process_id(const QProcess *const proc)
1558 {
1559         PROCESS_INFORMATION *procInf = proc->pid();
1560         return (procInf) ? procInf->dwProcessId : 0;
1561 }
1562
1563 quint32 MUtils::OS::thread_id(void)
1564 {
1565         return GetCurrentThreadId();
1566 }
1567
1568 quint32 MUtils::OS::thread_id(const QProcess *const proc)
1569 {
1570         PROCESS_INFORMATION *procInf = proc->pid();
1571         return (procInf) ? procInf->dwThreadId : 0;
1572 }
1573
1574 ///////////////////////////////////////////////////////////////////////////////
1575 // PROCESS SUSPEND/RESUME
1576 ///////////////////////////////////////////////////////////////////////////////
1577
1578 bool MUtils::OS::suspend_process(const QProcess *proc, const bool suspend)
1579 {
1580         if(Q_PID pid = proc->pid())
1581         {
1582                 if(suspend)
1583                 {
1584                         return (SuspendThread(pid->hThread) != ((DWORD) -1));
1585                 }
1586                 else
1587                 {
1588                         return (ResumeThread(pid->hThread)  != ((DWORD) -1));
1589                 }
1590         }
1591         else
1592         {
1593                 return false;
1594         }
1595 }
1596
1597 ///////////////////////////////////////////////////////////////////////////////
1598 // SYSTEM TIMER
1599 ///////////////////////////////////////////////////////////////////////////////
1600
1601 bool MUtils::OS::setup_timer_resolution(const quint32 &interval)
1602 {
1603         return timeBeginPeriod(interval) == TIMERR_NOERROR;
1604 }
1605
1606 bool MUtils::OS::reset_timer_resolution(const quint32 &interval)
1607 {
1608         return timeEndPeriod(interval) == TIMERR_NOERROR;
1609 }
1610
1611 ///////////////////////////////////////////////////////////////////////////////
1612 // SET FILE TIME
1613 ///////////////////////////////////////////////////////////////////////////////
1614
1615 static QScopedPointer<QDateTime> s_epoch;
1616 static QReadWriteLock            s_epochLock;
1617
1618 static const QDateTime *get_epoch(void)
1619 {
1620         QReadLocker rdLock(&s_epochLock);
1621
1622         if (s_epoch.isNull())
1623         {
1624                 rdLock.unlock();
1625                 QWriteLocker wrLock(&s_epochLock);
1626                 if (s_epoch.isNull())
1627                 {
1628                         s_epoch.reset(new QDateTime(QDate(1601, 1, 1), QTime(0, 0, 0, 0), Qt::UTC));
1629                 }
1630                 wrLock.unlock();
1631                 rdLock.relock();
1632         }
1633
1634         return s_epoch.data();
1635 }
1636
1637 static FILETIME *qt_time_to_file_time(FILETIME *const fileTime, const QDateTime &dateTime)
1638 {
1639         memset(fileTime, 0, sizeof(FILETIME));
1640
1641         if (const QDateTime *const epoch = get_epoch())
1642         {
1643                 const qint64 msecs = epoch->msecsTo(dateTime);
1644                 if (msecs > 0)
1645                 {
1646                         const quint64 ticks = 10000U * quint64(msecs);
1647                         fileTime->dwHighDateTime = ((ticks >> 32) & 0xFFFFFFFF);
1648                         fileTime->dwLowDateTime = (ticks & 0xFFFFFFFF);
1649                         return fileTime;
1650                 }
1651         }
1652
1653         return NULL;
1654 }
1655
1656 static bool set_file_time(const HANDLE hFile, const QDateTime &created, const QDateTime &lastMod, const QDateTime &lastAcc)
1657 {
1658         FILETIME ftCreated, ftLastMod, ftLastAcc;
1659
1660         FILETIME *const pCreated = created.isValid() ? qt_time_to_file_time(&ftCreated, created) : NULL;
1661         FILETIME *const pLastMod = lastMod.isValid() ? qt_time_to_file_time(&ftLastMod, lastMod) : NULL;
1662         FILETIME *const pLastAcc = lastAcc.isValid() ? qt_time_to_file_time(&ftLastAcc, lastAcc) : NULL;
1663
1664         if (pCreated || pLastMod || pLastAcc)
1665         {
1666                 return (SetFileTime(hFile, pCreated, pLastAcc, pLastMod) != FALSE);
1667         }
1668
1669         return false;
1670 }
1671
1672 bool MUtils::OS::set_file_time(const QFile &file, const QDateTime &created, const QDateTime &lastMod, const QDateTime &lastAcc)
1673 {
1674         const int fd = file.handle();
1675         if (fd >= 0)
1676         {
1677                 return set_file_time((HANDLE)_get_osfhandle(fd), created, lastMod, lastAcc);
1678         }
1679         return false;
1680 }
1681
1682 bool MUtils::OS::set_file_time(const QString &path, const QDateTime &created, const QDateTime &lastMod, const QDateTime &lastAcc)
1683 {
1684         const HANDLE hFile = CreateFileW(MUTILS_WCHR(path), FILE_WRITE_ATTRIBUTES, FILE_SHARE_READ, NULL, OPEN_EXISTING, 0, 0);
1685         bool okay = false;
1686         if ((hFile != NULL) && (hFile != INVALID_HANDLE_VALUE))
1687         {
1688                 okay = set_file_time(hFile, created, lastMod, lastAcc);
1689                 CloseHandle(hFile);
1690         }
1691         return okay;
1692 }
1693
1694 ///////////////////////////////////////////////////////////////////////////////
1695 // CHECK KEY STATE
1696 ///////////////////////////////////////////////////////////////////////////////
1697
1698 bool MUtils::OS::check_key_state_esc(void)
1699 {
1700         return (GetAsyncKeyState(VK_ESCAPE) & 0x0001) != 0;
1701 }
1702
1703 ///////////////////////////////////////////////////////////////////////////////
1704 // SHELL CHANGE NOTIFICATION
1705 ///////////////////////////////////////////////////////////////////////////////
1706
1707 void MUtils::OS::shell_change_notification(void)
1708 {
1709         SHChangeNotify(SHCNE_ASSOCCHANGED, SHCNF_IDLIST, NULL, NULL);
1710 }
1711
1712 ///////////////////////////////////////////////////////////////////////////////
1713 // WOW64 REDIRECTION
1714 ///////////////////////////////////////////////////////////////////////////////
1715
1716 typedef BOOL (_stdcall *Wow64DisableWow64FsRedirectionFun)(void *OldValue);
1717 typedef BOOL (_stdcall *Wow64RevertWow64FsRedirectionFun )(void *OldValue);
1718
1719 bool MUtils::OS::wow64fsredir_disable(void *oldValue)
1720 {
1721         const Wow64DisableWow64FsRedirectionFun wow64redir_disable = MUtils::Win32Utils::resolve<Wow64DisableWow64FsRedirectionFun>(QLatin1String("kernel32"), QLatin1String("Wow64DisableWow64FsRedirection"));
1722         if(wow64redir_disable)
1723         {
1724                 if (wow64redir_disable(oldValue))
1725                 {
1726                         return true;
1727                 }
1728         }
1729         return false;
1730 }
1731
1732 bool MUtils::OS::wow64fsredir_revert(void *oldValue)
1733 {
1734         const Wow64RevertWow64FsRedirectionFun wow64redir_disable = MUtils::Win32Utils::resolve<Wow64RevertWow64FsRedirectionFun>(QLatin1String("kernel32"), QLatin1String("Wow64RevertWow64FsRedirection"));
1735         if (wow64redir_disable)
1736         {
1737                 if (wow64redir_disable(oldValue))
1738                 {
1739                         return true;
1740                 }
1741         }
1742         return false;
1743 }
1744
1745 ///////////////////////////////////////////////////////////////////////////////
1746 // DEBUGGER CHECK
1747 ///////////////////////////////////////////////////////////////////////////////
1748
1749 QString MUtils::OS::get_envvar(const QString &name)
1750 {
1751         wchar_t *buffer = NULL;
1752         size_t requiredSize = 0, buffSize = 0;
1753         QString result;
1754
1755         forever
1756         {
1757                 //Adjust the buffer size as required first!
1758                 if (buffSize < requiredSize)
1759                 {
1760                         if (buffer)
1761                         {
1762                                 _freea(buffer);
1763                         }
1764                         if (!(buffer = (wchar_t*)_malloca(sizeof(wchar_t) * requiredSize)))
1765                         {
1766                                 break; /*out of memory error!*/
1767                         }
1768                         buffSize = requiredSize;
1769                 }
1770
1771                 //Try to fetch the environment variable now
1772                 const errno_t error = _wgetenv_s(&requiredSize, buffer, buffSize, MUTILS_WCHR(name));
1773                 if(!error)
1774                 {
1775                         if (requiredSize > 0)
1776                         {
1777                                 result = MUTILS_QSTR(buffer);
1778                         }
1779                         break; /*done*/
1780                 }
1781                 else if (error != ERANGE)
1782                 {
1783                         break; /*somethging else went wrong!*/
1784                 }
1785         }
1786
1787         if (buffer)
1788         {
1789                 _freea(buffer);
1790                 buffSize = 0;
1791                 buffer = NULL;
1792         }
1793
1794         return result;
1795 }
1796
1797 bool MUtils::OS::set_envvar(const QString &name, const QString &value)
1798 {
1799         if (!_wputenv_s(MUTILS_WCHR(name), MUTILS_WCHR(value)))
1800         {
1801                 return true;
1802         }
1803         return false;
1804 }
1805
1806 ///////////////////////////////////////////////////////////////////////////////
1807 // NULL DEVICE
1808 ///////////////////////////////////////////////////////////////////////////////
1809
1810 static const QLatin1String NULL_DEVICE("NUL");
1811
1812 const QLatin1String &MUtils::OS::null_device(void)
1813 {
1814         return NULL_DEVICE;
1815 }
1816
1817 ///////////////////////////////////////////////////////////////////////////////
1818 // DEBUGGER CHECK
1819 ///////////////////////////////////////////////////////////////////////////////
1820
1821 #if (!(MUTILS_DEBUG))
1822 static __forceinline bool is_debugger_present(void)
1823 {
1824         __try
1825         {
1826                 CloseHandle((HANDLE)((DWORD_PTR)-3));
1827         }
1828         __except(1)
1829         {
1830                 return true;
1831         }
1832
1833         BOOL bHaveDebugger = FALSE;
1834         if(CheckRemoteDebuggerPresent(GetCurrentProcess(), &bHaveDebugger))
1835         {
1836                 if(bHaveDebugger) return true;
1837         }
1838
1839         return IsDebuggerPresent();
1840 }
1841 static __forceinline bool check_debugger_helper(void)
1842 {
1843         if(is_debugger_present())
1844         {
1845                 MUtils::OS::fatal_exit(L"Not a debug build. Please unload debugger and try again!");
1846                 return true;
1847         }
1848         return false;
1849 }
1850 #else
1851 #define check_debugger_helper() (false)
1852 #endif
1853
1854 void MUtils::OS::check_debugger(void)
1855 {
1856         check_debugger_helper();
1857 }
1858
1859 static volatile bool g_debug_check = check_debugger_helper();
1860
1861 ///////////////////////////////////////////////////////////////////////////////
1862 // FATAL EXIT
1863 ///////////////////////////////////////////////////////////////////////////////
1864
1865 static MUtils::Internal::CriticalSection g_fatal_exit_lock;
1866 static QAtomicInt g_fatal_exit_flag;
1867
1868 static DWORD WINAPI fatal_exit_helper(LPVOID lpParameter)
1869 {
1870         MUtils::OS::system_message_err(L"GURU MEDITATION", (LPWSTR) lpParameter);
1871         return 0;
1872 }
1873
1874 void MUtils::OS::fatal_exit(const wchar_t* const errorMessage)
1875 {
1876         g_fatal_exit_lock.enter();
1877
1878         if(!g_fatal_exit_flag.testAndSetOrdered(0, 1))
1879         {
1880                 return; /*prevent recursive invocation*/
1881         }
1882
1883         if(g_main_thread_id != GetCurrentThreadId())
1884         {
1885                 if(HANDLE hThreadMain = OpenThread(THREAD_SUSPEND_RESUME, FALSE, g_main_thread_id))
1886                 {
1887                         SuspendThread(hThreadMain); /*stop main thread*/
1888                 }
1889         }
1890
1891         if(HANDLE hThread = CreateThread(NULL, 0, fatal_exit_helper, (LPVOID)errorMessage, 0, NULL))
1892         {
1893                 WaitForSingleObject(hThread, INFINITE);
1894         }
1895         else
1896         {
1897                 fatal_exit_helper((LPVOID)errorMessage);
1898         }
1899
1900         for(;;)
1901         {
1902                 TerminateProcess(GetCurrentProcess(), 666);
1903         }
1904 }
1905
1906 ///////////////////////////////////////////////////////////////////////////////