279 lines
6.5 KiB
C++
279 lines
6.5 KiB
C++
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/*++
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Copyright (c) 2001 Microsoft Corporation
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Module Name:
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Dulog.cpp
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Abstract:
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Implements the event logging functions.
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Note that the C++ class provides the
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functionality for event logging.
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Notes:
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Unicode only.
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History:
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03/02/2001 rparsons Created
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--*/
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#include "precomp.h"
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extern SETUP_INFO g_si;
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/*++
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Routine Description:
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Logs an event to the event log and optionally displays the message.
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Note that we use this function when writing to the event log
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for non-error related stuff
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Arguments:
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wType - The type of message we're logging
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dwEventID - An event ID for our message
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fDisplayErr - A flag to indicate if we
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should display an error
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fCritical - Indicates if we should display a message
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from the string table
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Return Value:
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TRUE on success, FALSE otherwise
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--*/
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BOOL
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LogEventDisplayError(
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IN WORD wType,
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IN DWORD dwEventID,
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IN BOOL fDisplayErr,
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IN BOOL fCritical
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)
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{
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WORD wNumStrings = 0;
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LPWSTR lpwMessageArray[2];
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LPWSTR lpwSourceFile = NULL;
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int nLen = 0;
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CEventLog cel;
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//
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// If the Critical flag is set, an error occured while
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// trying to get strings from somewhere. Report the event
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// without registering a source
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//
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if (fCritical) {
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WCHAR wszMessageBoxTitle[MAX_PATH] = L"";
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WCHAR wszPrettyAppName[MAX_PATH] = L"";
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WCHAR wszEventLogSourceName[MAX_PATH] = L"";
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WCHAR wszTemp[MAX_PATH] = L"";
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WCHAR wszCriticalError[MAX_PATH] = L"";
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HANDLE hEventLog;
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const WCHAR *pwMessage[1];
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LoadString(g_si.hInstance,
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IDS_MB_TITLE,
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wszMessageBoxTitle,
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MAX_PATH);
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LoadString(g_si.hInstance,
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g_si.fOnWin2K ? IDS_APP_NAME_WIN2K :
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IDS_APP_NAME_XP,
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wszPrettyAppName,
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MAX_PATH);
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LoadString(g_si.hInstance,
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IDS_EL_SOURCE_NAME,
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wszEventLogSourceName,
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MAX_PATH);
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LoadString(g_si.hInstance,
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IDS_CRITICAL_ERROR,
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wszTemp,
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MAX_PATH);
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wsprintf(wszCriticalError, wszTemp, wszPrettyAppName);
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pwMessage[0] = wszCriticalError;
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hEventLog = RegisterEventSource(NULL, wszEventLogSourceName);
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if (hEventLog) {
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ReportEvent(hEventLog,
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EVENTLOG_ERROR_TYPE,
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0,
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1001,
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NULL,
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1,
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0,
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pwMessage,
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NULL);
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}
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if (!g_si.fQuiet) {
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MessageBox(GetDesktopWindow(),
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wszCriticalError,
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wszMessageBoxTitle,
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MB_ICONERROR | MB_OK);
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}
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DeregisterEventSource(hEventLog);
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return TRUE;
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}
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//
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// Determine if we've already created our event source
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//
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if (!g_si.fEventSourceCreated) {
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//
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// Build a path to our source file and register
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// the event source
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//
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nLen += wcslen(g_si.lpwEventLogSourceName);
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nLen += wcslen(g_si.lpwInstallDirectory);
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lpwSourceFile = (LPWSTR) MALLOC((nLen*sizeof(WCHAR))*2);
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if (NULL == lpwSourceFile) {
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return FALSE;
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}
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wcscpy(lpwSourceFile, g_si.lpwInstallDirectory);
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wcscat(lpwSourceFile, L"\\");
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wcscat(lpwSourceFile, g_si.lpwEventLogSourceName);
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wcscat(lpwSourceFile, L".exe");
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cel.CreateEventSource(lpwSourceFile,
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g_si.lpwEventLogSourceName,
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dwApplication);
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g_si.fEventSourceCreated = TRUE;
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FREE(lpwSourceFile);
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}
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lpwMessageArray[wNumStrings++] = (LPWSTR) g_si.lpwPrettyAppName;
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//
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// Place the event in the event log
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//
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cel.LogEvent(g_si.lpwEventLogSourceName,
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NULL,
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wType,
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dwEventID,
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1,
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(LPCWSTR*) lpwMessageArray);
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if (fDisplayErr) {
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if (!g_si.fQuiet) {
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DisplayErrMsg(NULL, dwEventID, (LPWSTR) lpwMessageArray);
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}
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}
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return TRUE;
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}
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/*++
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Routine Description:
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Logs an event to the event log
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Arguments:
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wType - Type of message
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dwEventID - Event ID
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wNumStrings - Number of insertion strings
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lpwStrings - Array of strings
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Return Value:
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None
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--*/
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void
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LogWUEvent(
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IN WORD wType,
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IN DWORD dwEventID,
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IN WORD wNumStrings,
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IN LPCWSTR *lpwStrings
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)
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{
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HANDLE hES = NULL;
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LPVOID lpMsgBuf = NULL;
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LPWSTR lpwSourceFile = NULL;
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int nLen = 0;
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CEventLog cel;
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//
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// Determine if we've already created our event source
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// in the registry
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//
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if (!g_si.fEventSourceCreated) {
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//
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// Build a path to our source file and register
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// the event source
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//
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nLen += wcslen(g_si.lpwEventLogSourceName);
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nLen += wcslen(g_si.lpwInstallDirectory);
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lpwSourceFile = (LPWSTR) MALLOC((nLen*sizeof(WCHAR))*2);
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if (NULL == lpwSourceFile) {
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return;
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}
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wcscpy(lpwSourceFile, g_si.lpwInstallDirectory);
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wcscat(lpwSourceFile, L"\\");
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wcscat(lpwSourceFile, g_si.lpwEventLogSourceName);
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wcscat(lpwSourceFile, L".exe");
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cel.CreateEventSource(lpwSourceFile,
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g_si.lpwEventLogSourceName,
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dwApplication);
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g_si.fEventSourceCreated = TRUE;
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FREE(lpwSourceFile);
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}
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if (wNumStrings) {
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//
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// Report the event with insertion strings
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//
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cel.LogEvent(g_si.lpwEventLogSourceName,
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NULL,
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wType,
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dwEventID,
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0,
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NULL);
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} else {
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//
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// Report the event with no strings
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//
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cel.LogEvent(g_si.lpwEventLogSourceName,
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NULL,
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wType,
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dwEventID,
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wNumStrings,
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(LPCWSTR*) lpwStrings);
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}
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return;
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}
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