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96 lines
2.8 KiB
96 lines
2.8 KiB
/*****************************************************************************\
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FILE: logging.cpp
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DESCRIPTION:
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Logging helper functions
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BryanSt 4/23/2001 (Bryan Starbuck)
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Copyright (C) Microsoft Corp 2001-2001. All rights reserved.
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\*****************************************************************************/
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#include <shlwapi.h> // SHGetValue, wnsprintf, SHFormatDateTime
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#ifndef ARRAYSIZE
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#define ARRAYSIZE(a) (sizeof((a))/sizeof((a)[0]))
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#endif // ARRAYSIZE
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HANDLE g_hLogFile = INVALID_HANDLE_VALUE;
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void WriteToLogFileA(LPCSTR pszMessage, ...)
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{
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va_list vaParamList;
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va_start(vaParamList, pszMessage);
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if (INVALID_HANDLE_VALUE == g_hLogFile)
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{
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TCHAR szPath[MAX_PATH];
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if (GetWindowsDirectory(szPath, ARRAYSIZE(szPath)))
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{
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PathAppend(szPath, TEXT("AutoPlay.log"));
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g_hLogFile = CreateFile(szPath, (GENERIC_READ | GENERIC_WRITE), FILE_SHARE_READ, NULL, OPEN_ALWAYS, FILE_ATTRIBUTE_NORMAL, NULL);
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if (INVALID_HANDLE_VALUE != g_hLogFile)
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{
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CHAR szTimeDate[MAX_PATH];
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CHAR szHeader[MAX_PATH];
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FILETIME ftCurrentUTC;
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FILETIME ftCurrent;
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SYSTEMTIME stCurrent;
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DWORD cbWritten;
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SetFilePointer(g_hLogFile, 0, NULL, FILE_END);
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GetLocalTime(&stCurrent);
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SystemTimeToFileTime(&stCurrent, &ftCurrent);
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LocalFileTimeToFileTime(&ftCurrent, &ftCurrentUTC);
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SHFormatDateTimeA(&ftCurrentUTC, NULL, szTimeDate, ARRAYSIZE(szTimeDate));
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TCHAR szProcess[MAX_PATH];
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if (!GetModuleFileName(NULL, szProcess, ARRAYSIZE(szProcess)))
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{
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szProcess[0] = 0;
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}
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wnsprintfA(szHeader, ARRAYSIZE(szHeader), "\r\n\r\n%hs - (%ls)\r\n", szTimeDate, /*szUserName,*/ szProcess);
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WriteFile(g_hLogFile, szHeader, lstrlenA(szHeader), &cbWritten, NULL);
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}
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}
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}
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if (INVALID_HANDLE_VALUE != g_hLogFile)
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{
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CHAR szMessage[4000];
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DWORD cbWritten;
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wvsprintfA(szMessage, pszMessage, vaParamList);
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WriteFile(g_hLogFile, szMessage, lstrlenA(szMessage), &cbWritten, NULL);
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FlushFileBuffers(g_hLogFile);
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}
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va_end(vaParamList);
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}
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void WriteToLogFileW(LPCWSTR pszMessage)
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{
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DWORD cchSize = (lstrlen(pszMessage) + 1);
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LPSTR pszMessageAnsi = (LPSTR) LocalAlloc(LPTR, cchSize);
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if (pszMessageAnsi)
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{
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SHUnicodeToAnsi(pszMessage, pszMessageAnsi, cchSize);
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WriteToLogFileA(pszMessageAnsi);
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}
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}
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void CloseLogFile(void)
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{
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if (INVALID_HANDLE_VALUE != g_hLogFile)
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{
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HANDLE hLogFile = g_hLogFile;
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g_hLogFile = INVALID_HANDLE_VALUE;
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CloseHandle(hLogFile);
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}
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}
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