178 lines
3.7 KiB
C++
178 lines
3.7 KiB
C++
// Copyright 2015 Google Inc. All Rights Reserved.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http ://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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#include "stdafx.h"
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#include "CommonUtils.h"
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#include <strsafe.h>
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#pragma comment(lib, "Advapi32.lib")
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void __stdcall my_puts(const char* str)
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{
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fwrite(str, 1, strlen(str), stdout);
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}
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static console_output _pout = my_puts;
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void DebugSetOutput(console_output pout)
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{
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_pout = pout;
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}
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void DebugPrintf(const char* lpFormat, ...)
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{
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CHAR buf[1024];
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va_list va;
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va_start(va, lpFormat);
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StringCbVPrintfA(buf, sizeof(buf), lpFormat, va);
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_pout(buf);
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}
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std::wstring GetErrorMessage(DWORD dwError)
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{
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LPWSTR pBuffer = NULL;
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DWORD dwSize = FormatMessage(FORMAT_MESSAGE_FROM_SYSTEM | FORMAT_MESSAGE_IGNORE_INSERTS |
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FORMAT_MESSAGE_ALLOCATE_BUFFER, 0, dwError, 0, (LPWSTR)&pBuffer, 32 * 1024, nullptr);
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if (dwSize > 0)
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{
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std::wstring ret = pBuffer;
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LocalFree(pBuffer);
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return ret;
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}
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else
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{
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printf("Error getting message %d\n", GetLastError());
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WCHAR buf[64];
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StringCchPrintf(buf, _countof(buf), L"%d", dwError);
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return buf;
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}
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}
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std::wstring GetErrorMessage()
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{
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return GetErrorMessage(GetLastError());
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}
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BOOL SetPrivilege(HANDLE hToken, LPCTSTR lpszPrivilege, BOOL bEnablePrivilege)
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{
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TOKEN_PRIVILEGES tp;
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LUID luid;
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if (!LookupPrivilegeValue(NULL, lpszPrivilege, &luid))
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{
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return FALSE;
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}
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tp.PrivilegeCount = 1;
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tp.Privileges[0].Luid = luid;
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if (bEnablePrivilege)
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{
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tp.Privileges[0].Attributes = SE_PRIVILEGE_ENABLED;
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}
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else
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{
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tp.Privileges[0].Attributes = 0;
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}
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if (!AdjustTokenPrivileges(hToken, FALSE, &tp, sizeof(TOKEN_PRIVILEGES), (PTOKEN_PRIVILEGES)NULL, (PDWORD)NULL))
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{
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return FALSE;
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}
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if (GetLastError() == ERROR_NOT_ALL_ASSIGNED)
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{
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return FALSE;
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}
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return TRUE;
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}
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DWORD NtStatusToDosError(NTSTATUS status)
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{
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DEFINE_NTDLL(RtlNtStatusToDosError);
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return fRtlNtStatusToDosError(status);
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}
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void SetNtLastError(NTSTATUS status)
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{
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SetLastError(NtStatusToDosError(status));
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}
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FARPROC GetProcAddressNT(LPCSTR lpName)
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{
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return GetProcAddress(GetModuleHandleW(L"ntdll"), lpName);
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}
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HANDLE OpenFileNative(LPCWSTR path, HANDLE root, ACCESS_MASK desired_access, ULONG share_access, ULONG open_options)
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{
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UNICODE_STRING name = { 0 };
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OBJECT_ATTRIBUTES obj_attr = { 0 };
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DEFINE_NTDLL(RtlInitUnicodeString);
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DEFINE_NTDLL(NtOpenFile);
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if (path)
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{
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fRtlInitUnicodeString(&name, path);
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InitializeObjectAttributes(&obj_attr, &name, OBJ_CASE_INSENSITIVE, root, nullptr);
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}
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else
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{
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InitializeObjectAttributes(&obj_attr, nullptr, OBJ_CASE_INSENSITIVE, root, nullptr);
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}
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HANDLE h = nullptr;
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IO_STATUS_BLOCK io_status = { 0 };
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NTSTATUS status = fNtOpenFile(&h, desired_access, &obj_attr, &io_status, share_access, open_options);
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if (NT_SUCCESS(status))
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{
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return h;
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}
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else
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{
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SetNtLastError(status);
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return nullptr;
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}
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}
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std::wstring BuildFullPath(const std::wstring& path, bool native)
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{
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std::wstring ret;
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WCHAR buf[MAX_PATH];
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if (native)
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{
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ret = L"\\??\\";
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}
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if (GetFullPathName(path.c_str(), MAX_PATH, buf, nullptr) > 0)
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{
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ret += buf;
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}
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else
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{
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ret += path;
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}
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return ret;
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}
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