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author | 2015-01-11 08:10:25 +0100 | |
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committer | 2015-01-11 08:10:25 +0100 | |
commit | 6a23c2f3b766cf4fc7028628f76b5ff9396383f0 (patch) | |
tree | a01e16637118ae0c80f337119898bdf18f081e24 /3rdparty/lzma/CPP/Windows/MemoryLock.cpp | |
parent | 45ac9b351e0076c371de4c7453f59567b27b1cb6 (diff) |
Added full lzma sdk source (nw)
Diffstat (limited to '3rdparty/lzma/CPP/Windows/MemoryLock.cpp')
-rw-r--r-- | 3rdparty/lzma/CPP/Windows/MemoryLock.cpp | 82 |
1 files changed, 82 insertions, 0 deletions
diff --git a/3rdparty/lzma/CPP/Windows/MemoryLock.cpp b/3rdparty/lzma/CPP/Windows/MemoryLock.cpp new file mode 100644 index 00000000000..e0f43099672 --- /dev/null +++ b/3rdparty/lzma/CPP/Windows/MemoryLock.cpp @@ -0,0 +1,82 @@ +// Common/MemoryLock.cpp + +#include "StdAfx.h" + +namespace NWindows { +namespace NSecurity { + +#ifndef UNDER_CE + +#ifndef _UNICODE +typedef BOOL (WINAPI * OpenProcessTokenP)(HANDLE ProcessHandle, DWORD DesiredAccess, PHANDLE TokenHandle); +typedef BOOL (WINAPI * LookupPrivilegeValueP)(LPCTSTR lpSystemName, LPCTSTR lpName, PLUID lpLuid); +typedef BOOL (WINAPI * AdjustTokenPrivilegesP)(HANDLE TokenHandle, BOOL DisableAllPrivileges, + PTOKEN_PRIVILEGES NewState, DWORD BufferLength, PTOKEN_PRIVILEGES PreviousState,PDWORD ReturnLength); +#endif + +#ifdef _UNICODE +bool EnableLockMemoryPrivilege( +#else +static bool EnableLockMemoryPrivilege2(HMODULE hModule, +#endif +bool enable) +{ + #ifndef _UNICODE + if (hModule == NULL) + return false; + OpenProcessTokenP openProcessToken = (OpenProcessTokenP)GetProcAddress(hModule, "OpenProcessToken"); + LookupPrivilegeValueP lookupPrivilegeValue = (LookupPrivilegeValueP)GetProcAddress(hModule, "LookupPrivilegeValueA" ); + AdjustTokenPrivilegesP adjustTokenPrivileges = (AdjustTokenPrivilegesP)GetProcAddress(hModule, "AdjustTokenPrivileges"); + if (openProcessToken == NULL || adjustTokenPrivileges == NULL || lookupPrivilegeValue == NULL) + return false; + #endif + + HANDLE token; + if (! + #ifdef _UNICODE + ::OpenProcessToken + #else + openProcessToken + #endif + (::GetCurrentProcess(), TOKEN_ADJUST_PRIVILEGES, &token)) + return false; + TOKEN_PRIVILEGES tp; + bool res = false; + if ( + #ifdef _UNICODE + ::LookupPrivilegeValue + #else + lookupPrivilegeValue + #endif + (NULL, SE_LOCK_MEMORY_NAME, &(tp.Privileges[0].Luid))) + { + tp.PrivilegeCount = 1; + tp.Privileges[0].Attributes = enable ? SE_PRIVILEGE_ENABLED: 0; + if ( + #ifdef _UNICODE + ::AdjustTokenPrivileges + #else + adjustTokenPrivileges + #endif + (token, FALSE, &tp, 0, NULL, NULL)) + res = (GetLastError() == ERROR_SUCCESS); + } + ::CloseHandle(token); + return res; +} + +#ifndef _UNICODE +bool EnableLockMemoryPrivilege(bool enable) +{ + HMODULE hModule = LoadLibrary(TEXT("Advapi32.dll")); + if (hModule == NULL) + return false; + bool res = EnableLockMemoryPrivilege2(hModule, enable); + ::FreeLibrary(hModule); + return res; +} +#endif + +#endif + +}} |